Workpiece transfer device on production line

Abstract

The present invention discloses a workpiece transfer device on a production line, comprising: a first transport device, a second transport device, a fork for transferring workpieces, and a rotating shaft, wherein the fork is arranged on the rotating shaft, and the fork can rotate around the rotating shaft and obtain workpieces from the first transport device during the rotation process, and then transfer the obtained workpieces to the second transport device. The workpiece to be processed is directly transferred from the first transport device to the second transport device by the fork, and the structure is simple, and no impact is generated on the first transport device and the second transport device.

Description

Technical Field

[0001] The invention relates to the technical field of assembly line production, in particular to a workpiece transfer device on a production line. Background Art

[0002] In assembly line production operations, there are many process links. The reasonable layout of each link is conducive to saving energy consumption, floor space, shortening production time, and improving production efficiency. In order to reasonably layout the production line or subject to process requirements or the shape or size of the production site, the production line needs to turn, even at a right angle. At present, most of the production line turning equipment has a complex structure or a guide rail type turn. The turning equipment with a complex structure is expensive, and the relatively simple guide rail type turn has a large impact at the turn, unstable operation, and high energy consumption, which also increases the equipment maintenance cost. Summary of the invention

[0003] The present invention aims to solve at least one of the above problems and provides a workpiece transfer device on a production line, comprising: a first transport device, a second transport device, a fork for transferring workpieces, and a rotating shaft, the fork is arranged on the rotating shaft, the fork can rotate around the rotating shaft and obtain the workpiece from the first transport device during the rotation, and then transfer the obtained workpiece to the second transport device; the fork comprises a fork rod and a fork body, the fork body comprises a front fork and a rear fork, the front fork and the rear fork form a roughly "U" shape or a semicircular shape or an arc shape, the fork rod is connected between the two ends of the roughly "U" shape or the semicircular shape or the arc shape; a movable fork is arranged at the end of the front fork, a stop portion is arranged on the front fork to limit the range of movement of the movable fork outside the fork body, and a stop edge is arranged on the front fork to limit the range of movement of the movable fork into the fork body. The workpiece to be processed is directly transferred from the first transport device to the second transport device through the shift fork. The structure is simple and no impact is generated on the first transport device or the second transport device. A movable fork reset device is also provided on the movable fork on the front fork. One end of the movable fork reset device is fixed on the movable fork, and the other end is fixed on the front fork.

[0004] Furthermore, a foldable movable fork is provided at the end of the rear fork, a stop portion is provided on the rear fork to limit the range of movement of the movable fork outside the fork body, and a stop edge is provided on the rear fork to limit the range of movement of the movable fork into the fork body.

[0005] Furthermore, the rotating shaft is arranged on the second transport device, the second transport device includes a driving sprocket and a driven sprocket, the driving sprocket and the driven sprocket are provided with a second chain, the driving sprocket and the driven sprocket are arranged on the rotating shaft and rotate at the same angular velocity as the shift fork.

[0006] Furthermore, it also includes a sliding support seat arranged on the fork body and capable of sliding along the fork body, a rolling friction pair being arranged between the sliding support seat and the fork body; and a sliding support seat reset device, one end of which is fixed to the rear fork end, and the other end is fixed to the sliding support seat. The sliding support seat is arranged on the fork body, and the original sliding friction of the hanging rod is changed to rolling friction, so that the workpiece runs more smoothly in the fork, and the wear of the fork is reduced, thereby extending the service life of the fork.

[0007] Furthermore, the sliding support seat resetting device includes a second fixing pin arranged at the end of the rear fork, a third fixing pin arranged on the sliding support seat, and an elastic body connecting the third fixing pin and the second fixing pin.

[0008] A movable fork is provided. When the shift fork acquires the workpiece in a horizontal position, the movable fork on the front fork sags under the action of gravity or the collision of the workpiece, so that the front fork is shorter than the rear fork, and the hanging rod can enter the shift fork; a stop edge is provided to limit the position of the movable fork moving into the shift fork, and a stop portion is provided to limit the position of the movable fork moving outward from the shift fork; when the shift fork acquires the workpiece from the first transport device and then rotates, the hanging rod slides in the shift fork during the process of the shift fork rising, and when the shift fork continues to rotate after rotating to the highest point, the hanging rod continues to slide in the shift fork and hits the movable fork on the front fork to make the movable fork cooperate with the front fork, so that the hanging rod slides on the movable fork, and when it rotates to a certain time, the movable fork on the rear fork sags under the action of gravity, so that the rear fork is shorter than the front fork to facilitate the hanging rod to move forward without being collided with the rear fork, and the hanging rod is smoothly placed on the transport chain 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of an electrophoresis production line provided by the present invention;

[0010] Figure 2 It is a principle schematic diagram of an electrophoresis production line provided by the present invention;

[0011] Figure 3 It is a schematic diagram of an embodiment of a workpiece transfer device on a production line provided by the present invention when acquiring a workpiece;

[0012] Figure 4 It is a schematic diagram of an embodiment of a workpiece transfer device on a production line provided by the present invention when the workpiece is transferred to a second transport device;

[0013] Figure 5 It is a schematic diagram of another embodiment of a workpiece transfer device on a production line provided by the present invention when acquiring a workpiece;

[0014] Figure 6is a schematic diagram of another embodiment of a workpiece transfer device on a production line provided by the present invention when the workpiece is transferred to a second transport device;

[0015] Figure 7 This is a schematic diagram of another embodiment of a workpiece transfer device on a production line provided by the present invention when acquiring a workpiece;

[0016] Figure 8 It is a schematic diagram of another embodiment of a workpiece transfer device on a production line provided by the present invention when the workpiece is transferred to a second transport device;

[0017] Fig. 9 It is a schematic diagram of another embodiment of a workpiece transfer device on a production line provided by the present invention when acquiring a workpiece;

[0018] Fig.10 is a schematic diagram of a workpiece hung on a first transport device in the present invention;

[0019] Fig.11 is a partial schematic diagram of a front fork in one embodiment of the present invention;

[0020] Fig.12 Schematic diagram of a movable fork in one embodiment of the present invention.

[0021] 1. First transport device; 11. Hook; 2. Second transport device; 20. Rotating shaft; 21. Sprocket 2; 22. Chain 2; 3. Third transport device; 4. Fourth transport device; 5. Work tool; 51. Hanging rod; 6. Shift fork; 61. Shift fork rod; 62. Front fork; 621. Pin hole 1; 622. Stop edge; 623. Stop part; 624. Fixed pin 1; 625. Return spring; 63. Rear fork; 64. Movable fork; 641. Pin hole 2; 642. Tail; 65. Sliding support seat; 651. Ball; 66. Fixed pin 2; 67. Elastic band; 68. Fixed pin 3; 7. Electric pool. DETAILED DESCRIPTION

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] like Figure 1 , Figure 2 As shown, the electrophoresis production line of this embodiment consists of two electrophoresis pools 7 arranged in a straight line, a first transport device 1 composed of a chain and two sprockets, a second transport device 2, a third transport device 3, a fourth transport device 4 correspondingly arranged above the electrophoresis pool, and forks arranged on the second transport device and the fourth transport device, which are adjacent to each other in sequence, wherein the transfer of the workpiece to be electroplated from one transport device to another is completed by a fork 6 arranged on the second transport device or the fourth transport device, and the fork is arranged on a rotating shaft 20.

[0026] The first transport device 1 includes a chain 1 and a hook 11. The hook is arranged on the chain 1 and is used to hook a tool 5 for placing the workpiece. The tool is provided with a hanging rod 51. Fig.10 The first end of the first transport device, i.e., the driving wheel end, is arranged at the rightmost end of the electrostatic pool and is perpendicular to the straight line formed by the electrostatic pool. The chain of the first transport device moves clockwise, as shown in FIG. Figure 1 As shown by the middle arrow, the tooling is transported from the tail end of the first transport device to the head end of the first transport device by chain 1.

[0027] The second transport device includes two transport groups and three pairs of shift forks. Each transport group includes two chains 22 arranged side by side. A transport group is correspondingly arranged above each electrostatic pool. Chain 2 is provided with sprocket 21, which is arranged above the end wall of the electrostatic pool. Sprocket 2 includes a driving sprocket and a driven sprocket. Both the driving sprocket and the driven sprocket are fixedly arranged on the rotating shaft. Each sprocket is fixedly provided with a shift fork on the rotating shaft. At the adjacent part of two transport groups, the driven sprocket of the next transport group and the driving sprocket of the previous transport group share a rotating shaft 20 as a sprocket shaft. The two ends of the hanging rod 51 are respectively supported on the two chains 2 of the transport group and transported forward.

[0028] The third transport device 3 includes a chain and a hook 11 arranged on the chain, and the hook is hooked with a tool 5 for placing the workpiece. The tail end of the third transport device is arranged at the leftmost end of the electrostatic pool and is perpendicular to the straight line arranged in the electrostatic pool. The tool is transported from the tail end of the third transport device to the head end of the third transport device by the chain, and the running direction is as follows: Figure 1 Indicated by the arrow.

[0029] The fourth transport device is arranged in parallel with the electrothermal pool, and comprises a transport chain composed of two chains and sprockets arranged side by side, and its head and tail are adjacent to the first transport device and the third transport device respectively.

[0030] The sprockets of the second transport device and the fourth transport device are both provided with shift forks to facilitate the transfer of the tooling from one transport device to another transport device. The process of the shift fork transferring the tooling is as follows: a hanging rod 51 is provided on the tooling, and the height of the hanging rod is adapted to the horizontal height of the shift fork. The shift fork close to the first transport device rotates counterclockwise to lift the hanging rod from below the hanging rod, and the tooling continues to rotate counterclockwise with the shift fork and passes over the wall of the electrostatic pool. The shift fork continues to rotate to place the tooling on chain two and penetrate into the electrostatic pool; the tooling moves forward under the transportation of chain two; the shift forks on the sprockets at two adjacent transport groups lift the tooling from the previous chain two and place it on the next chain two; the shift fork on the sprocket two close to the third transport device lifts the tooling from chain two and places it on the hook of the third transport device; the shift fork on the sprocket close to the third transport device on the fourth transport device lifts the tooling from the hook of the third transport device and places it on the chain of the fourth transport device; the shift fork on the fourth transport device close to the first transport device lifts the tooling from the chain of the fourth transport device and places it on the hook of the first transport device, thereby completing the entire cycle of the tooling. When the fork lifts the tooling from one chain, it also takes the workpiece out of the electrophoresis pool; after the tooling passes over the electrophoresis pool wall, it enters the next electrophoresis pool as the fork descends. The first and third transport devices are both transfer processes, the second transport device is an electrophoresis process, and the fourth transport device is a drying process.

[0031] In order to more smoothly transfer the tooling from one transport device to another transport device, the present invention also specifically provides a shift fork 6, such as Figure 3 As shown, the shift fork can rotate and can obtain the workpiece from the first transport device and transfer it to the second transport device through rotation. The shift fork includes a shift fork rod 61 and a shift fork body. The shift fork body includes a front fork 62 and a rear fork 63. The front fork and the rear fork form a roughly "U" shape or a semicircular shape or an arc shape. The shift fork rod is connected between the two ends of the roughly "U" shape or semicircular shape.

[0032] like Figure 3 , Figure 4 , Fig.12As shown, in one embodiment, a foldable movable fork 64 is provided at the end of the rear fork, and a pin hole 641 and a tail 642 are provided on the movable fork; Fig.11 As shown, correspondingly, a pin hole 1 621 is provided on the rear fork, and a stopper 623 and a stopper edge 622 are also provided to limit the range of motion of the movable fork. A fixing pin 1 624 passes through pin hole 2 and pin hole 1 to hinge the movable fork to the end of the front fork. The shift fork starts to rotate counterclockwise from the horizontal direction. When the shift fork rotates past the highest position, the movable fork on the rear fork falls down under the action of gravity and is stopped at a certain position by the stopper edge, so that the rear fork is shorter than the front fork. When the shift fork rotates and drops to a horizontal position, the movable fork begins to open. When the shift fork continues to rotate and is about to reach a horizontal state, the movable fork is stopped by the stopper.

[0033] In another embodiment, if Figure 5 , Figure 6 As shown, a foldable movable fork 64 is provided at the end of the front fork, and a pin hole 641 and a tail 642 are provided on the movable fork; Fig.11 As shown, the front fork is provided with a pin hole 1 621, a stopper 623 and a stopper edge 622 to limit the range of motion of the movable fork. A fixing pin 1 624 passes through the pin hole 2 and the pin hole 1 to hinge the movable fork to the end of the front fork. Figure 5 As shown, when the fork is in a horizontal position to obtain a workpiece, the movable fork sags under the action of gravity or the collision of the hanging rod, so that the front fork is shorter than the rear fork, and the hanging rod can smoothly enter the fork; the stop edge can limit the position of the movable fork moving into the fork, and the stop portion can limit the position of the movable fork moving out of the fork. When the fork rotates and rises after obtaining the workpiece, the hanging rod slides in the fork. When the fork continues to rotate after rotating to the highest point, the hanging rod continues to slide in the fork and hits the movable fork. The tail 642 of the movable fork is blocked by the stop portion 623, thereby fixing the movable fork. The hanging rod continues to slide on the movable fork, and finally transports the tooling to the next transport chain or places the tooling on the hook.

[0034] In yet another embodiment, Figure 7 , Figure 8 As shown, the ends of the front fork and the rear fork are both provided with foldable movable forks 64. When the fork is at the right side, the movable fork on the front fork droops so that the front fork is shorter than the rear fork; when the fork is at the left side, the movable fork on the rear fork droops so that the rear fork is shorter than the front fork. This structure is conducive to the fork to obtain and send out the workpiece.

[0035] Furthermore, in yet another embodiment, Fig. 9 , Fig.11As shown, the movable fork reset device 625 is also included. The reset device can restore the movable fork to its original position after the movable fork moves, that is, it forms a roughly "U" shape or a semicircular shape or an arc shape with the fork body. The reset device in this embodiment is a spring, one end of which is fixed to the movable fork and the other end is fixed to the front fork. The movable fork reset device is provided, and the hanging rod can slide on the movable fork without hitting the movable fork, thereby ensuring the reliability of the fork.

[0036] Furthermore, it also includes a sliding support seat 65 arranged on the fork body and can slide along the fork body, and a rolling friction pair 651 is arranged between the sliding support seat and the fork; it also includes a sliding support seat reset device, one end of which is fixed to the end of the rear fork, and the other end is fixed to the sliding support seat; in this embodiment, it includes a fixed pin 3 68 fixed to the sliding support seat, a fixed pin 2 66 fixed to the rear fork, and an elastic band 67 is arranged between the fixed pin 3 and the fixed pin 2. The sliding support seat is arranged on the fork body, and the workpiece changes from the original sliding friction to rolling friction, so that the workpiece runs more smoothly in the fork, and at the same time reduces the wear of the fork and prolongs the service life of the fork.

[0037] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A workpiece transfer device on a production line, characterized in that: include: A first transport device, a second transport device, a shift fork for transferring workpieces, and a rotating shaft, the shift fork being arranged on the rotating shaft, the shift fork being able to rotate around the rotating shaft and obtain the workpiece from the first transport device during the rotation process, and then transferring the obtained workpiece to the second transport device; the shift fork comprising a shift fork rod and a shift fork body, the shift fork body comprising a front fork and a rear fork, the front fork and the rear fork forming a roughly "U" shape or a semicircular shape or an arc shape, the shift fork rod being connected between the two ends of the roughly "U" shape or the semicircular shape or the arc shape; a movable fork being arranged at the end of the front fork, a stop portion being arranged on the front fork to limit the range of movement of the movable fork out of the fork body, and a stop edge being arranged on the front fork to limit the range of movement of the movable fork into the fork body; a movable fork reset device is also arranged on the movable fork on the front fork, one end of the movable fork reset device is fixed on the movable fork, and the other end is fixed on the front fork; A foldable movable fork is provided at the end of the rear fork, a stopper is provided on the rear fork to limit the range of movement of the movable fork outside the fork body, and a stopper edge is provided on the rear fork to limit the range of movement of the movable fork inside the fork body; The rotating shaft is arranged on the second transport device, and the second transport device comprises a driving sprocket and a driven sprocket, and a second chain is arranged on the driving sprocket and the driven sprocket, and the driving sprocket and the driven sprocket are arranged on the rotating shaft and rotate at the same angular velocity as the shift fork.

2. The workpiece transfer device on the production line according to claim 1, characterized in that: It also includes a sliding support seat arranged on the fork body and capable of sliding along the fork body, a rolling friction pair being arranged between the sliding support seat and the fork body; and a sliding support seat reset device, one end of which is fixed to the rear fork end, and the other end is fixed to the sliding support seat.

3. The workpiece transfer device on the production line according to claim 2, characterized in that: The sliding support seat resetting device comprises a second fixing pin arranged at the end of the rear fork, a third fixing pin arranged on the sliding support seat, and an elastic body connecting the third fixing pin and the second fixing pin.

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