The present invention relates generally to a transmission apparatus, and particularly to a transmission apparatus having protection structure.
The electrochemical process is a processing method using the principle of anodic dissolution in electrochemistry and applicable to hard-to-process materials and thin plate processing.
The electrolysis process requires an electrolyte as the medium and the erosion problem should be considered. The thin-plate process needs to consider the precision in clipping and transporting workpieces.
The present invention relates to a transmission apparatus, which comprises a base, a transmission module, a first protection sleeve, and a second protection sleeve. The transmission module is disposed on the base and includes a moving unit. The first protection sleeve is disposed around the outer periphery of the transmission module and on the base. One end of the second protection sleeve is covered by the first protection sleeve. The second protection sleeve is disposed around the moving unit and moves linkedly along the moving unit. Thereby, the transmission apparatus according to the present invention may protection the transmission module.
In order to make the structure and characteristics as well as the effectiveness of the present invention to be further understood and recognized, the detailed description of the present invention is provided as follows along with embodiments and accompanying figures.
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According to the present embodiment, the first and second protection sleeves 15, 17 may be hollow cylinders. As shown in
The inner diameter of the first hole 150 of the first protection sleeve 15 is slightly greater than the outer diameter of the second protection sleeve 17. One end of the second protection sleeve 17 is disposed inside the first hole 150 of the first protection sleeve 15. That is to say, one end of the second protection sleeve 17 is covered by the first protection sleeve 15. The moving unit 133 is further disposed inside the second hole 170 of the second protection sleeve 17. Namely, the second protection sleeve 17 surrounds and is connected with the moving unit 133. Thereby, as the moving unit moves 133, it will drive the second protection sleeve 17 to move accordingly. In other words, the second protection sleeve 17 is moved linkedly by the moving unit 133. According to the above description, the first protection sleeve 15 is put around the second protection sleeve 17 and forming an outer housing. In addition, the first hole 150 communicates with the second hole 170 and thus forming the accommodating space 100 for accommodating and protecting the moving unit 133. Besides, the axis of the first protection sleeve 15 corresponds to the axis of the second protection sleeve 17. That is to say, the first and second protection sleeves 15, 17 are disposed coaxially.
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In addition, the transmission apparatus 1 further comprises a third protection sleeve 25. According to the present embodiment, the third protection sleeve 25 is a hollow cylinder. As shown in
The displacement sensing rod 21 is disposed at the third protection sleeve 25, making the displacement sensing rod 21 disposed equivalently on the second base body 112 of the base 11. In addition, the displacement sensing rod 21 is located in the second and third holes 170, 250. Namely, the second and third protection sleeves 17, 25 surround the outer periphery of the displacement sensing rod 21. Because the second hole 170 communicates with the third hole 250, the closed accommodating space 100 is formed and hence protecting the displacement sensing rod 21 and the location sensor 23. Besides, the axes of the first and second protection sleeves correspond to the axis of the third protection sleeve 25, meaning that the first, second, and third protection sleeves 15, 17, 25 are disposed coaxially. In addition, a protection lid 26, which is a hollow member, covers the end of the third protection sleeve 25 and the displacement sensing rod 21. In other words, the end of the third protection sleeve 25 and the displacement sensing rod 21 are disposed in the accommodating space of the protection lid 26. The protection lid 26 is disposed on the second base body 112. Thereby, the displacement sensing rod 21 and the location sensor 23 may be protected effectively.
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When the second protection sleeve 17 moves outward, it will not depart from the first protection sleeve 15 completely. Thereby, the accommodating space 100 inside the first and second protection sleeves 15, 17 still maintain closed. Hence, invasion of dusts, liquid, or any material into the transmission module 13 may be avoided and thus protecting the driving unit 131 and the moving unit 133. In addition, the second protection sleeve 17 includes a first outer diameter D1 and the second outer diameter D2 with the second outer diameter D2 greater than the first outer diameter D1. The first outer diameter D1 corresponds to the inner diameter of the third hole 250 of the third protection sleeve 25. The greatest moving distance D1 of the second protection sleeve 17 is limited by the outer diameter D2. As the moving unit 133 drives the second protection sleeve 17 to move to the third protection sleeve 25 continuously, the end surface of the second protection sleeve 17 having the second outer diameter D2 will be against the end surface of the third protection sleeve 25 and unable to move. That is to say, the greatest moving distance D1 of the second protection sleeve 17 is limited by the third protection sleeve 25. This greatest moving distance D1 is determined by the gap distance d2 between the end surface of the second protection sleeve 17 having the second outer diameter D2 and the end surface of the third protection sleeve 25.
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Moreover, the plurality of sealing rings 27 are further disposed on the outer sidewall of the other end of the second protection sleeve 17 and located at the overlap of the second and third protection sleeves 17, 25. Thereby, the plurality of sealing rings 27 seal the gap between the inner sidewall of the third hole 250 of the third protection sleeve 25 and the outer surface of the second protection sleeve 17.
Furthermore, the present embodiment may further comprise one or more injection hole 29, which is a hole and disposed at the first protection sleeve 15. The injection holes 29 correspond to the plurality of sealing rings 27 and located at the overlap of the first and second protection sleeves 15, 17. The injection hole 29 communicates with the gap between the first and second protection sleeves 15, 17. During the electrochemical processing, some electrolytes may permeate via the gap between the first and second protection sleeves 15, 17. Being blocked by the sealing rings 27, the electrolytes may possibly become crystals. Thereby, the liquid, such as water, is injected into the injection hole 29 and flows from the injection hole 29 to the gap between the first and second protection sleeve 15, 17. Hence, the crystals near the sealing rings 27 will absorb the liquid and be softened or even transited to liquids for reducing the damage of the crystals on the sealing rings 27. Consequently, the back and forth motion between the first and second protection sleeves 15, 17 may operate normally. In addition, the injection hole 29 may be disposed at the third protection sleeve 25 as well and located at the overlap between the third and second protection sleeves 25, 17.
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The moving base 332 may further comprise two fixing members 3321 projecting from both sides of the moving base 332, respectively. The carrier 31 is disposed on the first and second base bodies 111, 112 of the base and further includes two sliding parts 311 having a spacing part 313 therebetween. According to the present embodiment, the two sliding parts 311 and the spacing part 313 may be a concave part and a convex part, respectively. The moving platform 331 may include an opening 336 located at the center of the moving platform 331. The carrier 31 may carry the moving platform 331. Thereby, the moving platform 331 is disposed on the carrier 31. The opening 336 of the moving platform 331 corresponds to the spacing part 313 of the carrier 31. Both ends of the moving platform 331 are located on the two sliding parts 311 of the carrier 31, respectively. Thereby, the moving platform 331 may move back and forth on the carrier 31. Besides, both sides of the moving platform 331 are fixed to the two fixing members 3321 of the moving base 332. Then the moving platform 331 may be moved linkedly by the second protection sleeve 17. The plurality of clipping units 35 are disposed on the carrier 31 and the moving platform 331 of the moving module 33, respectively.
According to the present embodiment, the transport mechanism 3 may be used for transporting workpieces. By transporting thin-plate raw material strips, electrochemical processing may be performed. During the process of transporting raw material strips, the plurality of clipping units 35 will clip and release (unclip) raw material strips according to the movement of the moving platform 331 for transporting raw material strips. The operations of the transport mechanism 3 will be described in detail later. In addition, the transport mechanism 3 will remove the electrochemically-processed raw material strip segments from the processing zone.
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In the following, how the transport mechanism 3 transports raw material strips will be described. According to the present embodiment, four clipping units 35 will be adopted. Two clipping unit 35 are disposed on the front and back ends of the carrier 31; the other two are disposed on the moving platform 331. The plurality of clipping units 35 are arranged in line. As shown in
When the moving platform 331 of the transport mechanism 3 moves forwards and transports the raw material strip forward, the plurality of clipping units 35 on the moving platform 311 all clip and fix the raw material strip while the clipping units 35 on the carrier 31 do not. Thereby, the raw material strip is clipped by the plurality of clipping units 35 on the moving platform 331 and moves forward. Afterwards, the plurality of clipping units 35 on the moving platform 331 do not clip the raw material strip while the plurality of clipping units 35 on the moving platform 311 do. At this moment, the moving unit 133 drives the second protection sleeve 17 to move backwards, and hence driving the moving module 33 (the moving platform 331) to move backwards. The raw material strip is clipped by the clipping units 35 on the carrier 31 and becomes fixed and immobile. Thereby, by repeating the above steps, the raw material strip will be transported.
According to the present embodiment, the transmission apparatus 1 may transport raw material strips continuously for performing electrochemical processes. While transporting a raw material strip, the displacement sensing rod 21 and the location sensor 23 may be used to detect the displacement of the moving unit 133 and the moving module 33 and feedback to control the driving unit 131. Thereby, the accuracy of positioning the raw material strip may be enhanced.
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In addition, the present embodiment may further comprise a limiting member 41, a first limit unit 43, and a second limit unit 45. The first limit unit 43 is disposed on the first base body 111; the second limit unit 45 is disposed on the second base body 112. The limiting member 41 is disposed on one side of the moving base 332 and located between the first and second limit units 43, 45. When the transmission module 13 drives the moving base 332 to move, the moving base 332 will drive the limiting member 41 to move. Id the moving base 332 continues to move forward or backward, the front end or the back end of the limiting member 41 will be against the second or first limit unit 45, 43. The first or second limit unit 43, 45 will transmit a signal to an external control device (not shown in the figures), so that the control device may control the driving module 13 to stop the moving base 332.
Accordingly, the present invention conforms to the legal requirements owing to its novelty, nonobviousness, and utility. However, the foregoing description is only embodiments of the present invention, not used to limit the scope and range of the present invention. Those equivalent changes or modifications made according to the shape, structure, feature, or spirit described in the claims of the present invention are included in the appended claims of the present invention.