Bidirectional traction mechanism and transfer fork

Abstract

The utility model belongs to the technical field of transfer equipment in a three-dimensional clamp library system, and particularly relates to a two-way traction mechanism and a transfer fork, and the two-way traction mechanism comprises a base unit, a driving unit, a first-stage fork unit and a second-stage fork unit; the base unit is fixedly arranged on the fixed base; the first-stage fork unit is installed on the top of the base unit in a sliding mode, the driving unit is fixedly installed on the side edge of the first-stage fork unit, and the second-stage fork unit is installed on the first-stage fork unit in a sliding mode. The driving unit is in transmission connection with the first-stage fork unit and the second-stage fork unit through a transmission assembly. According to the bidirectional traction mechanism, the synchronous pulley and the synchronous belt are used as transmission components, so that the primary fork unit and the secondary fork unit are locked and fixed with the synchronous belt, the stroke of the secondary fork unit is superposed and amplified through bidirectional movement of the synchronous belt, meanwhile, the direct displacement of the synchronous pulley is reduced, and the space occupation of the bidirectional traction mechanism is optimized.

Description

Two-way traction mechanism and transfer fork Technical Field

[0001] This utility model belongs to the technical field of transfer equipment in a three-dimensional clamping system, specifically relating to a bidirectional traction mechanism and a transfer fork. Background Technology

[0002] In automotive welding production lines, fixtures need to be removed from or returned to their designated locations in the fixture storage area using transfer forks. Common transfer forks utilize gear sets and racks as transmission components. The high production cost of gears and the high precision requirements of gear set assembly result in high costs for the equipment itself and the debugging process. Furthermore, because the transmission components are internal and interconnected, replacing or maintaining even one gear requires disassembling the entire equipment, hindering timely restoration of production. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a bidirectional traction mechanism and a transfer fork to solve the problems of high cost of key transmission components such as gears and high costs incurred during assembly and debugging processes; as well as poor gear maintainability, which is not conducive to timely restoration of production status on site.

[0004] One embodiment of this utility model provides a bidirectional traction mechanism, including a base unit, a drive unit, a first-stage fork unit, and a second-stage fork unit;

[0005] The base unit is fixedly mounted on the fixed base;

[0006] The first-stage fork unit is slidably mounted on the top of the base unit, the drive unit is fixedly mounted on the side of the first-stage fork unit, and the second-stage fork unit is slidably mounted on the top of the first-stage fork unit;

[0007] The drive unit is connected to the primary fork unit and the secondary fork unit via a transmission assembly, and the drive unit is configured to traction the primary fork unit and the secondary fork unit to generate displacement during operation.

[0008] In one embodiment of this utility model, the base unit remains fixed, and the first-stage fork unit and the second-stage fork unit are simultaneously connected to the transmission assembly;

[0009] When the drive unit is running, the first-stage fork unit moves relative to the base unit in a predetermined sliding direction, and the second-stage fork unit moves relative to the first-stage fork unit in the same sliding direction, so that the travel distance of the second-stage fork unit is twice the travel distance of the drive unit.

[0010] In one embodiment of this utility model, the transmission assembly is a synchronous pulley and a synchronous belt;

[0011] At least two synchronous pulleys are provided, one of which is disposed on the drive unit, and the other synchronous pulley is rotatably disposed on the first-stage fork unit;

[0012] The timing belt is mounted on the timing pulley, the base unit is fixedly connected to the lower side of the timing belt, and the secondary fork unit is fixedly connected to the upper side of the timing belt.

[0013] In one embodiment of this utility model, the drive unit includes a motor, a motor mounting base, and a motor rotating shaft;

[0014] The motor is mounted on the motor mounting base, the motor rotating shaft is drivenly connected to the motor rotating shaft, and the motor rotating shaft is rotatably connected to the first-stage fork unit. The motor rotating shaft is connected to the transmission assembly.

[0015] In one embodiment of this utility model, the base unit includes a base, a first mounting plate, a C-shaped guide rail, a first synchronous belt clamping plate, and a first toothed plate;

[0016] The base is disposed on a fixed base; the first mounting plate is disposed on the lower surface of the base and extends from the side of the base near the drive unit;

[0017] The C-shaped guide rails are disposed on both sides of the upper surface of the base, and the first-stage fork unit is slidably connected to the base through the C-shaped guide rails;

[0018] The first timing belt clamping plate and the first toothed plate are disposed at the end of the first mounting plate, and the first timing belt clamping plate and the first toothed plate are locked and fixed to the timing belt.

[0019] In one embodiment of this utility model, the primary fork unit includes a primary fork, a linear guide rail, rollers, a bearing with a seat, and a fixed mounting base;

[0020] The linear guide rail is disposed at the top of the first-stage fork;

[0021] The rollers are located on both sides of the bottom of the first-stage fork, and the rollers slide in cooperation with the C-shaped guide rail;

[0022] The mounted bearing and the fixed mounting base are disposed on the side of the first-stage fork near the drive unit. The motor rotating shaft is rotatably connected to the mounted bearing, and the fixed mounting base is used to fix the motor mounting base.

[0023] In one embodiment of this utility model, the secondary fork unit includes a secondary fork, a second mounting plate, a second timing belt pressure plate, and a second toothed plate;

[0024] The secondary fork is slidably connected to the linear guide rail, and the upper surface of the secondary fork is set as a transfer surface;

[0025] The second mounting plate is disposed on the lower surface of the secondary fork and extends from the side of the secondary fork near the drive unit;

[0026] The second synchronous belt pressure plate and the second toothed plate are fixedly disposed at the end of the second mounting plate, and the second synchronous belt pressure plate and the second toothed plate are locked and fixed to the synchronous belt.

[0027] In one embodiment of this utility model, the fixed base is an installation platform installed on a transport device, and the transport device is any one of a stacker crane, a lifting machine, or a shuttle car.

[0028] In one embodiment of this utility model, the transmission component is a chain and sprocket transmission structure.

[0029] One embodiment of this utility model also discloses a transfer fork, including a bidirectional traction mechanism as described in any of the above embodiments.

[0030] The bidirectional traction mechanism and transfer fork provided by this utility model can achieve the following technical effects:

[0031] 1. By fixing the base unit on the fixed base, a primary fork unit and a secondary fork unit that slide against each other are set above the base unit, and the drive unit is set on the primary fork unit. The drive unit is connected to the primary fork unit and the secondary fork unit through the transmission component. When the drive unit is running, the transmission component drives the primary fork unit and the secondary fork unit to move in the same direction.

[0032] 2. The synchronous pulley and synchronous belt are used as transmission components, and both the primary fork unit and the secondary fork unit are locked and fixed to the synchronous belt. This makes the driving stroke of the drive unit on the synchronous pulley half the moving stroke of the secondary fork unit. In other words, this utility model amplifies the stroke of the secondary fork unit by superimposing the bidirectional movement of the synchronous belt, while reducing the direct displacement of the synchronous pulley, thereby optimizing the transmission efficiency and spatial layout.

[0033] 3. Compared with common transfer forks, the main transmission components of the bidirectional traction mechanism are synchronous belts and synchronous pulleys, which are less expensive than gear sets and racks; moreover, the transmission components are installed on the outside of the equipment, which is convenient for maintenance. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0035] Figure 1 shows a schematic diagram of the bidirectional traction mechanism of this utility model;

[0036] Figure 2 shows a schematic diagram of the base unit of this utility model;

[0037] Figure 3 shows a schematic diagram of the structure of the first-stage fork unit of this utility model;

[0038] Figure 4 shows a schematic diagram of the drive unit of this utility model;

[0039] Figure 5 shows a schematic diagram of the structure of the two-stage fork unit of this utility model;

[0040] Figure 6 shows a schematic diagram of the bidirectional traction mechanism of this utility model sliding in the forward direction;

[0041] Figure 7 shows a schematic diagram of the bidirectional traction mechanism of this utility model sliding in opposite directions.

[0042] The annotations in the attached figures are explained as follows:

[0043] 10-Base unit; 11-Base; 12-First mounting plate; 13-C-shaped guide rail; 14-First synchronous belt clamping plate; 15-First toothed plate;

[0044] 20-Drive unit; 21-Motor; 22-Motor mounting base; 23-Motor rotating shaft;

[0045] 30 - First-stage fork unit; 31 - First-stage fork; 32 - Linear guide rail; 33 - Roller; 34 - Bearing with mounting bracket; 35 - Fixed mounting base;

[0046] 40 - Secondary fork unit; 41 - Secondary fork; 42 - Second mounting plate; 43 - Second timing belt pressure plate; 44 - Second toothed plate;

[0047] 50 - Transmission assembly; 51 - Synchronous pulley; 52 - Synchronous belt; Detailed Implementation

[0048] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0049] Please refer to Figures 1, 6 and 7. One embodiment of this utility model provides a bidirectional traction mechanism, including a base unit 10, a drive unit 20, a first-stage fork unit 30 and a second-stage fork unit 40.

[0050] The base unit 10 is fixedly mounted on the fixed base;

[0051] The first-stage fork unit 30 is slidably mounted on the top of the base unit 10, the drive unit 20 is fixedly mounted on the side of the first-stage fork unit 30, and the second-stage fork unit 40 is slidably mounted on the first-stage fork unit 30.

[0052] The drive unit 20 is connected to the first-stage fork unit 30 and the second-stage fork unit 40 via the transmission assembly 50. The drive unit 20 is configured to traction the first-stage fork unit 30 and the second-stage fork unit 40 to generate displacement during operation.

[0053] Understandably, the base unit 10 is fixedly mounted on a fixed base, which can be a fixed bracket or a fixed mounting surface of other equipment, to provide stable support for the primary fork unit 30 and the secondary fork unit 40; the primary fork unit 30 is slidably mounted on the top of the base unit 10, the drive unit 20 is fixedly mounted on the side of the primary fork unit 30, and the secondary fork unit 40 is slidably mounted on the top of the primary fork unit 30, the top of the secondary fork unit 40 being used to support the workpiece such as the traction clamp or tool; the drive unit 20 is locked to the primary fork unit 30 and the secondary fork unit 40 respectively through the transmission assembly 50 to achieve transmission connection; since the position of the base unit 10 remains fixed, when the drive unit 20 is running, the primary fork unit 30 and the secondary fork unit 40 are simultaneously displaced through the transmission unit, thereby realizing the movement of the workpiece placed on the top of the secondary fork unit 40.

[0054] Furthermore, when the motor 21 is used as the power source for the drive unit 20, the first-stage fork unit 30 and the second-stage fork unit 40 can move forward or backward along the sliding trajectory by rotating the motor 21 in the forward or reverse direction.

[0055] Please refer to Figures 6 and 7. In one embodiment of this utility model, the base unit 10 is kept fixed, and the first-stage fork unit 30 and the second-stage fork unit 40 are simultaneously connected to the transmission assembly 50.

[0056] The solution of this application is that the base unit is fixed, and when the drive unit 20 is running, the first-stage fork unit 30 moves relative to the base unit 10 in a predetermined sliding direction, and the second-stage fork unit 40 moves relative to the first-stage fork unit 30 in the same predetermined sliding direction, so that the travel distance of the second-stage fork unit 40 is twice the travel distance of the drive unit 20.

[0057] Understandably, by superimposing the bidirectional motion of the transmission component 50, the stroke of the secondary fork unit 40 is amplified, while the direct displacement of the synchronous pulley 51 is reduced, thereby optimizing the transmission efficiency and spatial layout and reducing the space occupied by the transmission component 50.

[0058] Please refer to Figure 4. In one embodiment of this utility model, the transmission assembly 50 consists of a synchronous pulley 51 and a synchronous belt 52.

[0059] At least two synchronous pulleys 51 are provided, one of which is disposed on the drive unit 20, and the other synchronous pulley 51 is rotatably disposed on the first-stage fork unit 30;

[0060] The timing belt 52 is disposed on the timing pulley 51, the base unit 10 is fixedly connected to the lower side of the timing belt 52, and the secondary fork unit 40 is fixedly connected to the upper side of the timing belt 52.

[0061] Understandably, the synchronous belt 52 is set on one side of the primary fork unit 30 via two synchronous pulleys 51. The drive unit 20 is connected to one of the synchronous pulleys 51 as the driving pulley. The operation of the drive unit 20 drives the driving pulley to rotate, causing the synchronous belt 52 to rotate between the two synchronous pulleys 51. This causes the drive unit 20 to drive the primary fork unit 30 to move, and also drives the secondary fork unit 40 to move via the synchronous belt 52. Through the bidirectional superposition of the synchronous belt 52, the stroke of the secondary fork unit 40 is effectively amplified, the spatial layout is optimized, and the space occupied by the transmission components 50 is reduced.

[0062] Please refer to Figure 4. In one embodiment of this utility model, the drive unit 20 includes a motor 21, a motor mounting base 22, and a motor rotating shaft 23.

[0063] The motor 21 is mounted on the motor mounting base 22. The motor rotating shaft 23 is connected to the motor rotating shaft 23 in a transmission connection. The motor rotating shaft 23 is rotatably connected to the first-stage fork unit 30. The motor rotating shaft 23 is connected to the transmission assembly 50.

[0064] Understandably, the motor 21 is mounted on the motor mounting side of the motor mounting base 22, and the other end of the motor mounting base 22 is mounted on the fixed mounting base 35; one end of the motor 21 shaft is driven and mounted in the motor 21, and the other end is mounted on the bearing 34; the synchronous pulley 51 is mounted on the motor 21 shaft; the synchronous belt 52 is mounted on the synchronous pulleys 51 on both sides; and the base unit 10 and the secondary fork unit 40 are locked and fixed on the synchronous belt 52.

[0065] Referring to Figure 2, in one embodiment of this utility model, the base unit 10 includes a base 11, a first mounting plate 12, a C-shaped guide rail 13, a first synchronous belt pressing plate 14, and a first toothed plate 15.

[0066] The base 11 is disposed on a fixed base; the first mounting plate 12 is disposed on the lower surface of the base 11 and extends from the side of the base 11 near the drive unit 20;

[0067] The C-shaped guide rail 13 is disposed on both sides of the upper surface of the base 11, and the first-stage fork unit 30 is slidably connected to the base 11 through the C-shaped guide rail 13;

[0068] The first timing belt clamping plate 14 and the first toothed plate 15 are disposed at the end of the first mounting plate 12, and the first timing belt 52 clamping plate and the first toothed plate 15 are locked and fixed to the timing belt 52.

[0069] Understandably, the first mounting plate 12 is disposed on the lower surface of the base 11 and extends from the side near the drive unit 20, so as to facilitate the placement of the first timing belt 52 pressure plate and the first toothed plate 15 at the end of the first mounting plate 12, thereby installing the transmission components outside the equipment for easy maintenance; and the first timing belt pressure plate 14 is disposed below the timing belt 52, and the first toothed plate 15 is disposed below the timing belt 52. Through the fixed connection of the first timing belt pressure plate 14 and the first toothed plate 15, the toothed structure of the first toothed plate 15 clamps and fixes the timing belt 52 on the lower side.

[0070] Please refer to Figure 3. In one embodiment of this utility model, the primary fork unit 30 includes a primary fork 31, a linear guide rail 32, a roller 33, a bearing with a seat 34, and a fixed mounting base 35.

[0071] The linear guide rail 32 is disposed on the top of the primary fork 31;

[0072] The rollers 33 are disposed on both sides of the bottom of the first-stage fork 31, and the rollers 33 are slidably engaged with the C-shaped guide rail 13;

[0073] The mounted bearing 34 and the fixed mounting base 35 are disposed on the side of the first-stage fork 31 near the drive unit 20. The motor rotating shaft 23 is rotatably connected to the mounted bearing 34, and the fixed mounting base 35 is used to fix the motor mounting base 22.

[0074] Understandably, the seated bearing 34 is used to accommodate the motor rotating shaft 23, limiting the rotation of the motor rotating shaft 23 without affecting its rotation; by setting rollers 33 on both sides of the bottom of the first-stage fork 31, the rollers 33 slide in cooperation with the C-shaped guide rail 13, ensuring that the first-stage fork 31 can slide smoothly in both directions relative to the base 11 along the C-shaped guide rail 13; the fixed mounting base 35 is used to fix the motor mounting base 22, providing a stable support structure for the installation of the motor 21.

[0075] Please refer to Figure 5. In one embodiment of this utility model, the secondary fork unit 40 includes a secondary fork 41, a second mounting plate 42, a second synchronous belt pressure plate 43, and a second toothed plate 44.

[0076] The secondary fork 41 is slidably connected to the linear guide rail 32, and the upper surface of the secondary fork 41 is set as a transfer surface;

[0077] The second mounting plate 42 is disposed on the lower surface of the secondary fork 41 and extends from the side of the secondary fork 41 near the drive unit 20;

[0078] The second synchronous belt pressure plate 43 and the second toothed plate 44 are fixedly disposed at the end of the second mounting plate 42, and the second synchronous belt pressure plate 43 and the second toothed plate 44 are locked and fixed to the synchronous belt 52.

[0079] Understandably, the secondary fork 41 is mounted on the linear guide rail 32, the second mounting plate 42 is mounted below the secondary fork 41, the second timing belt 52 clamping plate is mounted below the second mounting plate 42, and the second toothed plate 44 is mounted below the second timing belt 52 clamping plate; through the fixed connection between the second timing belt 52 clamping plate and the second toothed plate 44, the toothed structure of the second toothed plate 44 clamps and fixes the upper timing belt 52.

[0080] In one embodiment of this utility model, the fixed base is an installation platform installed on a transport device, and the transport device is any one of a stacker crane, a lifting machine, or a shuttle car.

[0081] Understandably, the fixed base is used to connect and install the bidirectional traction mechanism with external equipment, such as:

[0082] When the bidirectional traction mechanism is set on the transfer fork of the stacker crane, it can be used to realize the storage, retrieval and transfer of clamps in the automated three-dimensional clamping system. For example, it can be directly mounted on the lifting platform of the stacker crane or fixed on the mobile walking lifting platform. The stacker crane travels through the aisle of the three-dimensional clamping system to complete the automatic storage and retrieval work.

[0083] When the bidirectional traction mechanism is installed on the transfer fork of the lifting transfer machine, the transfer fork is used in conjunction with the lifting transfer machine for lifting and horizontal transfer of the clamps;

[0084] The bidirectional traction mechanism is mounted on the transfer forks of the shuttle car as part of its transfer device, and is used to realize the handling and transfer of clamps on the track of the three-dimensional clamp storage system.

[0085] In one embodiment of this utility model, the transmission component 50 is a chain and sprocket transmission structure.

[0086] One embodiment of this utility model also discloses a transfer fork, including a bidirectional traction mechanism as described in any of the above embodiments.

[0087] The transfer fork provided by this utility model can achieve the following technical effects:

[0088] 1. By fixing the base unit 10 on the fixed base, a primary fork unit 30 and a secondary fork unit 40 that slide against each other are arranged above the base unit 10, and the drive unit 20 is arranged on the primary fork unit 30. The drive unit 20 is connected to the primary fork unit 30 and the secondary fork unit 40 through the transmission component 50. When the drive unit 20 is running, the transmission component 50 drives the primary fork unit 30 and the secondary fork unit 40 to move in the same direction.

[0089] 2. The synchronous pulley 51 and synchronous belt 52 are used as transmission components, and both the first-stage fork unit 30 and the second-stage fork unit 40 are locked and fixed to the synchronous belt 52. This makes the driving stroke of the drive unit 20 on the synchronous pulley 51 half of the moving stroke of the second-stage fork unit 40. That is, this utility model amplifies the stroke of the second-stage fork unit 40 by superimposing the bidirectional movement of the synchronous belt 52, while reducing the direct displacement of the synchronous pulley 51, thereby optimizing the transmission efficiency and spatial layout.

[0090] 2. Compared with common transfer forks, the main transmission components of the bidirectional traction mechanism are synchronous belts and synchronous pulleys, which are less expensive than gear sets and racks; moreover, the transmission components are installed on the outside of the equipment, which is convenient for maintenance.

[0091] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A bidirectional traction mechanism, characterized in that, It includes a base unit, a drive unit, a primary fork unit, and a secondary fork unit; the base unit is fixedly mounted on a fixed base; the primary fork unit is slidably mounted on the top of the base unit, the drive unit is fixedly mounted on the side of the primary fork unit, and the secondary fork unit is slidably mounted on the primary fork unit; the drive unit is connected to the primary fork unit and the secondary fork unit respectively via a transmission assembly, and the drive unit is configured to traction the primary fork unit and the secondary fork unit to generate displacement during operation.

2. The bidirectional traction mechanism as described in claim 1, characterized in that, The primary fork unit and the secondary fork unit are both connected to the transmission assembly; when the drive unit is running, the primary fork unit moves relative to the base unit in a predetermined sliding direction, and the secondary fork unit moves relative to the primary fork unit in the same sliding direction.

3. The bidirectional traction mechanism as described in claim 1 or 2, characterized in that, The transmission assembly consists of a timing pulley and a timing belt; at least two timing pulleys are provided, one of which is mounted on the drive unit, and the other is rotatably mounted on the primary fork unit; the timing belt is mounted on the timing pulley, the base unit is fixedly connected to the lower side of the timing belt, and the secondary fork unit is fixedly connected to the upper side of the timing belt.

4. The bidirectional traction mechanism as described in claim 3, characterized in that, The drive unit includes a motor, a motor mounting base, and a motor rotating shaft; the motor is mounted on the motor mounting base, the motor rotating shaft is connected to the motor rotating shaft for transmission, and the motor rotating shaft is rotatably connected to the first-stage fork unit, and the motor rotating shaft is connected to the transmission assembly.

5. The bidirectional traction mechanism as described in claim 4, characterized in that, The base unit includes a base, a first mounting plate, a C-shaped guide rail, a first timing belt clamping plate, and a first toothed plate. The base is mounted on a fixed base. The first mounting plate is located on the lower surface of the base and extends from the side of the base near the drive unit. The C-shaped guide rail is located on both sides of the upper surface of the base, and the first-stage fork unit is slidably connected to the base via the C-shaped guide rail. The first timing belt clamping plate and the first toothed plate are located at the ends of the first mounting plate and are locked and fixed to the timing belt.

6. The bidirectional traction mechanism as described in claim 5, characterized in that, The primary fork unit includes a primary fork, a linear guide rail, rollers, a seated bearing, and a fixed mounting base; the linear guide rail is disposed at the top of the primary fork; the rollers are disposed on both sides of the bottom of the primary fork, and the rollers slide in cooperation with the C-shaped guide rail; the seated bearing and the fixed mounting base are disposed on the side of the primary fork near the drive unit, the motor rotating shaft is rotatably connected to the seated bearing, and the fixed mounting base is used to fix the motor mounting base.

7. The bidirectional traction mechanism as described in claim 6, characterized in that, The secondary fork unit includes a secondary fork, a second mounting plate, a second synchronous belt pressure plate, and a second toothed plate; the secondary fork is slidably connected to the linear guide rail, and the upper surface of the secondary fork is configured as a transfer surface; the second mounting plate is disposed on the lower surface of the secondary fork and extends from the side of the secondary fork near the drive unit; the second synchronous belt pressure plate and the second toothed plate are fixedly disposed at the end of the second mounting plate, and the second synchronous belt pressure plate and the second toothed plate are locked and fixed to the synchronous belt.

8. The bidirectional traction mechanism as described in claim 3, characterized in that, The fixed base is an installation platform set on the transport equipment, which can be any one of a stacker crane, a lifting machine, or a shuttle.

9. The bidirectional traction mechanism as described in claim 3, characterized in that, The transmission component is a chain and sprocket drive structure.

10. A transfer fork, characterized in that, Includes the bidirectional traction mechanism as described in any one of claims 1-9.

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