Multi-station positioning tool

Abstract

The utility model relates to positioning tool field especially, and more particularly to a kind of multi-station positioning tool.Just including workbench, a plurality of placement holes and a plurality of workpieces, the lower surface of workbench is fixedly connected with two supporting plates, the placement hole is set in the upper surface of workbench, the workpiece is placed in the inner wall of placement hole, the upper surface of workbench is equipped with positioning mechanism, the positioning mechanism includes a plurality of pivot, pivot is rotatably connected with the upper surface of workbench, the arc surface of pivot is fixedly connected with two connecting plates, the surface of connecting plate is screw thread and is equipped with screw rod, the lower end of screw rod is fixedly connected with pressure block, the lower surface of workbench is fixedly connected with a plurality of driving motor.The utility model provides a kind of multi-station positioning tool with the positioning tool with multi-station positioning function, and different thickness workpiece can be positioned, improve the advantage of the application range of positioning tool.

Description

Technical Field

[0001] This utility model relates to the field of positioning fixtures, and in particular to a multi-station positioning fixture. Background Technology

[0002] Multi-station positioning fixtures are special fixtures used to fix multiple workpieces at the same time, which can improve production efficiency and processing consistency.

[0003] The utility model disclosed in announcement number CN222945320U is a workpiece positioning and centering fixture. Its key technical features are: a limiting device limits the movement trajectory of the positioning components to prevent the grippers from slipping and shifting during positioning, thus reducing positioning errors; a driving device positions the workpiece's inner hole or outer shape to quickly determine the workpiece's center; and a returning device quickly restores the limiting device to its original state after workpiece processing, facilitating secondary workpiece positioning. This reduces the operator's workload. The device itself has a simple structure and can quickly center the workpiece based on its outer shape and inner hole, improving its practicality. It includes a limiting device, a driving device, and a returning device, with the driving device mounted on the limiting device and the returning device mounted on the limiting device.

[0004] Regarding the above-mentioned content, the following technical defects were found: the above positioning fixture can only clamp and position a single workpiece, and cannot clamp and position workpieces of different thicknesses, which reduces the applicability of the positioning fixture. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a multi-station positioning fixture.

[0006] To solve the above-mentioned technical problems, this utility model provides a multi-station positioning fixture, including: a worktable, several placement holes, and several workpieces. Two support plates are fixedly connected to the lower surface of the worktable. The placement holes are opened on the upper surface of the worktable, and the workpieces are placed on the inner wall of the placement holes. A positioning mechanism is provided on the upper surface of the worktable. The positioning mechanism includes several rotating shafts, which are rotatably connected to the upper surface of the worktable. Two connecting plates are fixedly connected to the arc surface of the rotating shafts. A lead screw is threaded through the surface of the connecting plates, and a pressure block is fixedly connected to the lower end of the lead screw. Several drive motors are fixedly connected to the lower surface of the worktable. The output end of the drive motors is fixedly connected to the rotating shafts. A protective cover is fitted over the drive motors, and the protective cover is fixedly connected to the lower surface of the worktable.

[0007] The effect achieved by the above components is that by setting up a positioning mechanism, the tooling has a multi-station positioning function and can position workpieces of different thicknesses, thereby improving the applicability of the positioning tooling.

[0008] Preferably, the lower surface of the protective cover is fixedly connected to several connecting pipes, the inner wall of the connecting pipes is fixedly connected to a cooling fan, and several heat dissipation holes are opened on both sides of the outer wall of the protective cover.

[0009] The effect achieved by the above components is that by setting the above structure, the drive motor can be automatically cooled, avoiding the overheating of the drive motor from affecting the normal use of the positioning mechanism.

[0010] Preferably, a rubber pad is fixedly connected to the lower surface of the pressure block, and the rubber pad abuts against the upper surface of the workpiece.

[0011] The effect achieved by the above components is that the rubber pad can increase the friction of the pressure block on the side close to the workpiece, thereby improving the limiting effect of the pressure block on the workpiece.

[0012] Preferably, a plurality of rotating rods are fixedly connected to the upper end of the lead screw, and the rotating rods are evenly distributed on the upper end of the lead screw.

[0013] The effect achieved by the above components is that the operator can rotate the lever to drive the lead screw, thus achieving convenient control over the rotation of the lead screw.

[0014] Preferably, the upper surface of the workbench is provided with two picking mechanisms. Each picking mechanism includes an arched plate, the lower surface of which is fixedly connected to the upper surface of the workbench. Two transmission wheels are rotatably connected to one side of the arched plate. A conveyor belt is connected to the arc surfaces of the two transmission wheels. A connecting block is fixedly connected to the outer wall of the conveyor belt. A cylinder is fixedly connected to the lower surface of the connecting block. A suction cup is fixedly connected to the output end of the cylinder.

[0015] The effect achieved by the above components is that, by setting up a part-removing mechanism, the workpiece can be easily removed from the placement hole after the workpiece is processed, without the need for manual removal of the workpiece, thus improving the ease of operation of the multi-station positioning fixture.

[0016] Preferably, a servo motor is fixedly connected to the side of the arched plate away from the transmission wheel, and the output end of the servo motor is fixedly connected to one of the transmission wheels.

[0017] The effect achieved by the above components is that starting the servo motor can drive the transmission wheel to rotate, thus achieving the effect of automatically controlling the rotation of the transmission wheel.

[0018] Preferably, a lug is fixedly connected to one side of the connecting block, and a positioning rod is slidably passed through the side of the lug. The positioning rod is fixedly connected to the side of the arched plate away from the transmission wheel.

[0019] The effect achieved by the above components is that when the connecting block drives the cylinder to move, the ear plate fixed on the connecting block will move along the arc surface of the positioning rod, thereby improving the stability of the process of the connecting block driving the cylinder to move.

[0020] Compared with related technologies, the multi-station positioning fixture provided by this utility model has the following beneficial effects:

[0021] By setting up a positioning mechanism, the tooling has multi-station positioning function and can position workpieces of different thicknesses, thus improving the applicability of the positioning tooling.

[0022] By setting up a part-removal mechanism, the workpiece can be easily removed from the placement hole after processing, eliminating the need for manual removal and improving the ease of operation of multi-station positioning fixtures. Attached Figure Description

[0023] Figure 1 A structural schematic diagram of a multi-station positioning fixture provided by this utility model;

[0024] Figure 2 for Figure 1 The diagram shows the structure of the positioning mechanism.

[0025] Figure 3 for Figure 1 A partial structural disassembly diagram of the positioning mechanism shown;

[0026] Figure 4 for Figure 1 The diagram shown is a structural schematic of the picking mechanism.

[0027] Figure 5 for Figure 1 The diagram shows a partial structural schematic of the part-retrieving mechanism.

[0028] Numbered in the diagram: 1. Workbench; 2. Support plate; 3. Positioning mechanism; 301. Rotating shaft; 302. Connecting plate; 303. Pressure block; 304. Drive motor; 305. Rotating rod; 306. Rubber pad; 307. Protective cover; 308. Connecting pipe; 309. Cooling fan; 310. Heat dissipation hole; 311. Lead screw; 4. Part picking mechanism; 41. Arched plate; 42. Transmission wheel; 43. Conveyor belt; 44. Connecting block; 45. Cylinder; 46. Suction cup; 47. Servo motor; 48. Ear plate; 49. Positioning rod; 5. Placement hole; 6. Workpiece. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0030] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0031] Please see Figure 1 The present invention provides a multi-station positioning fixture, comprising: a workbench 1, a plurality of placement holes 5 and a plurality of workpieces 6. Two support plates 2 are fixedly connected to the lower surface of the workbench 1. The placement holes 5 are opened on the upper surface of the workbench 1. The workpieces 6 are placed on the inner wall of the placement holes 5. The upper surface of the workbench 1 is provided with a positioning mechanism 3 and two part-picking mechanisms 4.

[0032] In the embodiments of this utility model, please refer to Figure 2 and Figure 3 The positioning mechanism 3 includes several rotating shafts 301, which are rotatably connected to the upper surface of the worktable 1. Two connecting plates 302 are fixedly connected to the arc surface of the rotating shafts 301. A lead screw 311 is threaded through the surface of the connecting plates 302, and a pressure block 303 is fixedly connected to the lower end of the lead screw 311. Several drive motors 304 are fixedly connected to the lower surface of the worktable 1, and the output ends of the drive motors 304 are fixedly connected to the rotating shafts 301. A protective cover 307 is fitted over the drive motors 304 and fixedly connected to the lower surface of the worktable 1. By setting the positioning mechanism 3, the fixture has a multi-station positioning function and can position workpieces 6 of different thicknesses, thus improving the applicability of the positioning fixture. Several connecting pipes 308 are fixedly connected to the lower surface of the protective cover 307, and a cooling fan 309 is fixedly connected to the inner wall of the connecting pipes 308. Several heat dissipation holes 310 are opened on both sides of the outer wall of the protective cover 307. When in use, the positioning mechanism 3 can activate the cooling fan 309 to cool the drive motor 304 inside the protective cover 307. The hot air inside the protective cover 307 will be discharged through the heat dissipation holes 310. This structure automatically cools the drive motor 304, preventing overheating and ensuring the normal operation of the positioning mechanism 3. A rubber pad 306 is fixedly connected to the lower surface of the pressure block 303, and the rubber pad 306 abuts against the upper surface of the workpiece 6. The rubber pad 306 increases the friction of the pressure block 303 near the workpiece 6, thereby improving the limiting effect of the pressure block 303 on the workpiece 6. Several rotating rods 305 are fixedly connected to the upper end of the lead screw 311, and the rotating rods 305 are evenly distributed on the upper end of the lead screw 311. Personnel can rotate the rotating rods 305 to drive the lead screw 311, achieving convenient control of the lead screw 311's rotation.

[0033] In the embodiments of this utility model, please refer to Figure 4 and Figure 5 The part-retrieving mechanism 4 includes an arched plate 41. The lower surface of the arched plate 41 is fixedly connected to the upper surface of the worktable 1. Two transmission wheels 42 are rotatably connected to one side of the arched plate 41. A conveyor belt 43 is connected to the arc surface of the two transmission wheels 42. A connecting block 44 is fixedly connected to the outer wall of the conveyor belt 43. A cylinder 45 is fixedly connected to the lower surface of the connecting block 44. A suction cup 46 is fixedly connected to the output end of the cylinder 45. By setting up the part-retrieving mechanism 4, after the workpiece 6 is processed, it can be easily removed from the placement hole 5 without manual removal, thus improving the operational convenience of the multi-station positioning fixture. A servo motor 47 is fixedly connected to the side of the arched plate 41 away from the transmission wheels 42. The output end of the servo motor 47 is fixedly connected to one of the transmission wheels 42. Starting the servo motor 47 can drive the transmission wheel 42 to rotate, achieving the effect of automatically controlling the rotation of the transmission wheel 42. A lug plate 48 is fixedly connected to one side of the connecting block 44, and a positioning rod 49 is slidably passed through the side of the lug plate 48. The positioning rod 49 is fixedly connected to the side of the arched plate 41 away from the transmission wheel 42. When the connecting block 44 drives the cylinder 45 to move, the lug plate 48 fixed on the connecting block 44 will move along the arc surface of the positioning rod 49, thereby improving the stability of the process of the connecting block 44 driving the cylinder 45 to move.

[0034] The working principle of the multi-station positioning fixture provided by this utility model is as follows: When it is necessary to clamp and position the workpiece 6, first place the workpiece 6 to be clamped in the placement space, then start the drive motor 304 to drive the rotating shaft 301 to rotate, the rotating shaft 301 drives the connecting block 44 to rotate, the connecting block 44 drives the lead screw 311 and the pressure block 303 to rotate. When the pressure block 303 moves above the workpiece 6, stop the operation of the drive motor 304, then rotate the rotating rod 305 to drive the lead screw 311, so that the lead screw 311 passes through the connecting plate 302 and moves towards the workpiece 6. The lead screw 311 drives the pressure block 303 to move. When the pressure block 303 drives the rubber pad 306 to abut against the upper surface of the workpiece 6, the positioning operation of the workpiece 6 can be completed. Then the operator can process the workpiece 6. After processing, when it is necessary to release the positioning of the workpiece 6, first rotate the rotating rod 305 to drive the lead screw 311 to rotate in reverse. The screw 311 is rotated so that it passes through the connecting plate 302 and moves away from the workpiece 6. The screw 311 drives the pressure block 303. When the pressure block 303 drives the rubber pad 306 to separate from the workpiece 6, the positioning of the workpiece 6 can be released. Then, the drive motor 304 is started to control the pressure block 303 to rotate, so that the pressure block 303 is moved away from the top of the workpiece 6. Finally, the workpiece 6 can be taken out from the placement hole 5. When the positioning mechanism 3 is in use, the cooling fan 309 can be started to cool down the drive motor 304 inside the protective cover 307. The hot air inside the protective cover 307 will be discharged through the heat dissipation hole 310, which can automatically cool the drive motor 304 and prevent the drive motor 304 from overheating and affecting the normal use of the positioning mechanism 3. The rubber pad 306 can increase the friction of the pressure block 303 on the side close to the workpiece 6, thereby improving the limiting effect of the pressure block 303 on the workpiece 6.

[0035] When the workpiece 6 is processed and needs to be removed from the placement hole 5, the servo motor 47 is first started to drive one of the transmission wheels 42 to rotate. This transmission wheel 42 drives the conveyor belt 43 to rotate, so that the conveyor belt 43 rotates in the positioning of the two transmission wheels 42. The conveyor belt 43 drives the connecting block 44 to move. The connecting block 44 drives the cylinder 45 and the suction cup 46. When the suction cup 46 moves above the workpiece 6 to be removed, the servo motor 47 stops running. Then the cylinder 45 is started to drive the suction cup 46 to move closer to the workpiece 6, so that the suction cup 46 can pick up the workpiece 6. Then the electric push rod is started to drive the suction cup 46. The suction cup 46 drives the workpiece 6 to move away from the placement hole 5. When the workpiece 6 is separated from the placement hole 5, the removal operation of the suction cup 46 is completed. When the connecting block 44 drives the cylinder 45 to move, the ear plate 48 fixed on the connecting block 44 will move along the arc surface of the positioning rod 49, thereby improving the stability of the process of the connecting block 44 driving the cylinder 45 to move.

[0036] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0037] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A multi-station positioning fixture, characterized in that, include: The worktable (1), several placement holes (5), and several workpieces (6) are provided. Two support plates (2) are fixedly connected to the lower surface of the worktable (1). The placement holes (5) are opened on the upper surface of the worktable (1). The workpieces (6) are placed on the inner wall of the placement holes (5). A positioning mechanism (3) is provided on the upper surface of the worktable (1). The positioning mechanism (3) includes several rotating shafts (301). The rotating shafts (301) are rotatably connected to the upper surface of the worktable (1). The arc surface of the rotating shafts (301) is fixedly connected to... Two connecting plates (302) are connected, and a lead screw (311) is threaded through the surface of the connecting plate (302). A pressure block (303) is fixedly connected to the lower end of the lead screw (311). Several drive motors (304) are fixedly connected to the lower surface of the worktable (1). The output end of the drive motor (304) is fixedly connected to the rotating shaft (301). A protective cover (307) is fitted on the outside of the several drive motors (304). The protective cover (307) is fixedly connected to the lower surface of the worktable (1).

2. The multi-station positioning fixture according to claim 1, characterized in that, The lower surface of the protective cover (307) is fixedly connected to several connecting pipes (308), and the inner wall of the connecting pipes (308) is fixedly connected to a cooling fan (309). Several heat dissipation holes (310) are opened on both sides of the outer wall of the protective cover (307).

3. The multi-station positioning fixture according to claim 1, characterized in that, A rubber pad (306) is fixedly connected to the lower surface of the pressure block (303), and the rubber pad (306) abuts against the upper surface of the workpiece (6).

4. The multi-station positioning fixture according to claim 1, characterized in that, The upper end of the lead screw (311) is fixedly connected to several rotating rods (305), which are evenly distributed on the upper end of the lead screw (311).

5. The multi-station positioning tool of claim 1, wherein, The upper surface of the workbench (1) is provided with two picking mechanisms (4). Each picking mechanism (4) includes an arched plate (41). The lower surface of the arched plate (41) is fixedly connected to the upper surface of the workbench (1). Two transmission wheels (42) are rotatably connected to one side of the arched plate (41). The arc surfaces of the two transmission wheels (42) are connected to a conveyor belt (43). A connecting block (44) is fixedly connected to the outer wall of the conveyor belt (43). A cylinder (45) is fixedly connected to the lower surface of the connecting block (44). A suction cup (46) is fixedly connected to the output end of the cylinder (45).

6. A multi-station positioning fixture according to claim 5, characterized in that, A servo motor (47) is fixedly connected to the side of the arched plate (41) away from the transmission wheel (42), and the output end of the servo motor (47) is fixedly connected to one of the transmission wheels (42).

7. A multi-station positioning fixture according to claim 5, characterized in that, A lug plate (48) is fixedly connected to one side of the connecting block (44), and a positioning rod (49) is slidably passed through the side of the lug plate (48). The positioning rod (49) is fixedly connected to the side of the arched plate (41) away from the transmission wheel (42).

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