Claims
- 1. In a transport device for workpieces which have to pass a plurality of machining stations (14) arranged in a row, comprising
- a number of workpiece carriages (21) which exceeds the number of stations (14),
- a work path (22) extending through the machining stations (14),
- an endless conveyor (41) which moves the workpiece carriages (21) along said work path (22), step by step, from station to station, and which has attachments (45) located at equal distances, to which, at each workpiece carriage (21), there is a member (46) mating with the attachments,
- a return path (23), and
- two transverse carriages (28, 29), by which the workpiece carriages (21) can be transferred between said work path (22) and said return path (23), the improvement wherein that one branch path (24 and 25, respectively), each, is arranged on the transverse carriages (28, 29), said branch path following alternately the work path (22) and the return path (23), according to the position of the respective transverse carriage, that the endless conveyor (41) extends beyond the work path (22) along the branch paths (24, 25) following said work path, that one branch path (25) is adapted to be reciprocated between the end of the work path (22) and the start of the return path (23) and has a shifting means (51) by which, in each case, one workpiece carriage (21) can be shifted from said branch path (25) to the return path (23), and that the workpiece carriages (21) have stops (47, 48) with which they abut against each other on the return path (23) and maintain spacings between each other that are smaller than the distances between the attachments (45) of the endless conveyor (41).
- 2. The transport device as defined in claim 1 wherein the stops (47, 48) on the workpiece carriages (21) are adjustable in accordance with the size of the workpiece.
- 3. The transport device as defined in claim 1 wherein the member (46) mating with the attachment of each workpiece carriage (21) is fixed to a workpiece carrier (62) which is slidably guided on the workpiece carriage (21) transversely to the transport direction of the same, and which is provided with a centering projection (65) and, at each machining station, is shiftable by means of a shifting drive (71) from a transport position into an operating position, in which the member (46) mating with the attachment is released from the attachment (45) of the endless conveyor (41), and the centering projection (65) is centered at a stationary centering element (67).
- 4. The transport device as defined in claim 2 wherein the member (46) mating with the attachment of each workpiece carriage (21) is fixed to a workpiece carrier (62) which is slidably guided on the workpiece carriage (21) transversely to the transport direction of the same, and which is provided with a centering projection (65) and, at each machining station, is shiftable by means of a shifting drive (71) from a transport position into an operating position, in which the member (46) mating with the attachment is released from the attachment (45) of the endless conveyor (41), and the centering projection (65) is centered at a stationary centering element (67).
- 5. The transport device as defined in claim 1 wherein the workpiece is a circular saw blade.
- 6. The transport device as defined in claim 2 wherein the workpiece is a circular saw blade.
- 7. The transport device as defined in claim 3 wherein the workpiece is a circular saw blade.
- 8. The transport device as defined in claim 4 wherein the workpiece is a circular saw blade.
Priority Claims (2)
Number |
Date |
Country |
Kind |
3048738 |
Dec 1980 |
DEX |
|
3048739 |
Dec 1980 |
DEX |
|
Parent Case Info
This is a division of application Ser. No. 331,210 filed Dec. 16, 1981, now U.S. Pat. No. 4,449,427.
Foreign Referenced Citations (1)
Number |
Date |
Country |
2752654 |
Jun 1978 |
DEX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
331210 |
Dec 1981 |
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