Accurate positioning and clamping mechanism for jig machining

Abstract

The utility model relates to the field of jig processing, and discloses an accurate positioning and clamping mechanism for jig processing, which comprises a base, the top of the base is slidably connected with a workbench, the top of the workbench is rotatably connected with a gear, the outer wall of the gear is meshed with a plurality of racks, the outer walls of a plurality of sliding blocks are slidably connected with an I-shaped rail, and the I-shaped rail is rotatably connected with the workbench. The tops of the multiple sliding blocks are fixedly connected with fixing plates, the inner walls of the multiple fixing plates are fixedly connected with fixing cylinders, the inner walls of the multiple fixing cylinders are slidably connected with sliding rods, the inner walls of the multiple fixing cylinders are fixedly connected with rubber pads, and the outer walls of the multiple rubber pads are provided with springs; a cleaning assembly is arranged on the top of the workbench. According to the utility model, the slide block is driven by the motor to fixedly clamp the workpiece, and the plurality of springs can adapt to the workpieces in different shapes, so that the chuck for the workpieces in different shapes does not need to be customized, the clamping time is reduced, the clamping force can be uniformly dispersed, and the workpiece deformation caused by stress concentration is avoided.

Description

Technical Field

[0001] This utility model relates to the field of jig processing, and in particular to a precision positioning and clamping mechanism for jig processing. Background Technology

[0002] Precision positioning and clamping mechanisms for jig machining are tooling devices used in precision manufacturing. They achieve stable workpiece clamping through clamping components driven by hydraulic, pneumatic, or electric motors and gears. Rubber materials provide cushioning and sealing, reducing machining vibration and workpiece damage, ensuring positioning accuracy. They are suitable for the efficient clamping and machining of electronic components, micro-gears, and other parts.

[0003] The main structure of the precision positioning and clamping mechanism for jig processing consists of a high-precision positioning device, a rubber-coated alloy steel chuck, and a hydraulic and pneumatic drive system. Due to rapid technological development, modular chucks are difficult to adapt to clamping objects of different shapes. Irregularly shaped objects require customized chucks, which delays the development cycle. Furthermore, due to the material, the maintenance cost is high, which increases the operating cost. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a precision positioning and clamping mechanism for jig processing, which aims to improve the problems of difficulty in adapting to workpieces of different shapes and difficulty in cleaning.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision positioning and clamping mechanism for jig processing, comprising a worktable, a first motor disposed inside the worktable, a gear rotatably connected to the top of the worktable, multiple racks meshing with the outer wall of the gear, sliders fixedly connected to the outer wall of the multiple racks, I-beam rails slidably connected to the outer wall of the multiple sliders, a fixing plate fixedly connected to the top of the multiple sliders, a fixing cylinder fixedly connected to the inner wall of the multiple fixing plates, a slide rod slidably connected to the inner wall of the multiple fixing cylinders, rubber pads fixedly connected to the inner wall of the multiple fixing cylinders, springs installed on the outer wall of the multiple rubber pads, and a cleaning component disposed on the top of the worktable.

[0006] Preferably, the cleaning assembly includes multiple side plates, which are fixedly connected to the outer wall of the workbench. A work plate is fixedly connected to an adjacent side of the multiple side plates. A second motor is fixedly connected inside the multiple side plates. A brush is slidably connected to the top of the work plate. A lead screw is threadedly connected to the outer wall of the brush. A waste trough is fixedly connected to the outer wall of the work plate.

[0007] Preferably, the gear is fixedly connected to the output end of the first motor.

[0008] Preferably, the plurality of racks are slidably connected to the top of the worktable, and the plurality of I-beams are fixedly connected to the top of the worktable.

[0009] Preferably, one end of the plurality of springs is mounted on the outer wall of the rubber pad, and the other end of the plurality of springs is mounted on the outer wall of the slide rod.

[0010] Preferably, the lead screw is fixedly connected to the output end of the second motor, and the lead screw is disposed on the outer wall of the working plate.

[0011] Preferably, the waste trough is fixedly connected to the inner wall of multiple side plates, and the waste trough is fixedly connected to the inner wall of the workbench.

[0012] Preferably, the plurality of said sliders are slidably connected to the outer wall of the work plate.

[0013] Preferably, the plurality of side plates are fixedly connected to the outer wall of the workbench.

[0014] Preferably, a lifting frame is slidably connected to the bottom of the workbench, and a base is fixedly connected to the bottom of the lifting frame.

[0015] This utility model has the following beneficial effects:

[0016] 1. In this utility model, the motor drives the gear, and the gear drives the slider to fix and clamp the workpiece. Since multiple springs can adapt to workpieces of different shapes, it is not necessary to customize chucks to cope with different shapes of workpieces, which reduces clamping time and can evenly distribute the clamping force to avoid workpiece deformation caused by stress concentration.

[0017] 2. In this utility model, the lead screw is driven by a motor, and the lead screw drives the brush to clean the area after work in a timely manner. This can not only prevent debris from entering the sealing structure and reduce the failure rate, but also maintain the flatness of the processing table, ensure the positioning accuracy of the workpiece, and improve the continuity and safety of production. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of a precision positioning and clamping mechanism for jig processing proposed in this utility model;

[0019] Figure 2 This is a side sectional view of a precision positioning and clamping mechanism for jig processing proposed in this utility model;

[0020] Figure 3 This is a cross-sectional schematic diagram of the fixing cylinder of a precision positioning and clamping mechanism for jig processing proposed in this utility model;

[0021] Figure 4 This is a front cross-sectional view of a precision positioning and clamping mechanism for jig processing proposed in this utility model;

[0022] Figure 5 This is a schematic diagram of a gear set for a precision positioning and clamping mechanism for jig processing proposed in this utility model.

[0023] Legend:

[0024] 1. Base; 2. Lifting frame; 3. Workbench; 4. Side plate; 5. I-beam rail; 6. Slider; 7. Fixing plate; 8. Lead screw; 9. Waste trough; 10. Slide bar; 11. Spring; 12. Rubber pad; 13. Fixing cylinder; 14. Gear; 15. Rack; 16. First motor; 17. Second motor; 18. Brush; 19. Work plate; 20. Cleaning components. Detailed Implementation

[0025] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Reference Figure 1 - Figure 3 An embodiment of this utility model provides a precision positioning and clamping mechanism for jig processing, including a worktable 3. A first motor 16 is installed inside the worktable 3. A gear 14 is rotatably connected to the top of the worktable 3. Multiple racks 15 are meshed with the outer wall of the gear 14. A slider 6 is fixedly connected to the outer wall of the multiple racks 15. I-beam rails 5 are slidably connected to the outer wall of the multiple sliders 6. A fixing plate 7 is fixedly connected to the top of the multiple sliders 6. A fixing cylinder 13 is fixedly connected to the inner wall of the multiple fixing plate 7. A slide rod 10 is slidably connected to the inner wall of the multiple fixing cylinders 13. A rubber pad 12 is fixedly connected to the inner wall of the multiple fixing cylinders 13. A spring 11 is installed on the outer wall of the multiple rubber pads 12. A cleaning component 20 is provided on the top of the worktable 3.

[0027] Specifically, when the workpiece needs to be clamped and fixed, the first motor 16 is started to drive the gear 14. Two racks 15 mesh on both sides of the gear 14. The slider 6 fixed on the outer wall of the rack 15 will move with the movement of the rack 15. Therefore, the first motor 16 can drive the slider 6. The fixing plate 7 fixed on the top of the slider 6 also moves accordingly. The rubber pad on the top of the slide rod 10 fixed inside the fixing plate 7 will contact the workpiece. When contacting the workpiece, the spring 11 in contact with the slide rod 10 will be compressed to the rear. The cooperation of multiple slide rods 10 can ensure that workpieces of different shapes can be clamped and fixed. During operation, the rubber pad 12 on the rear side of the spring 11 can buffer the kinetic energy during processing and increase the service life of the workpiece.

[0028] Reference Figure 4The cleaning component 20 includes multiple side plates 4, which are fixedly connected to the outer wall of the workbench 3. A work plate 19 is fixedly connected to the adjacent side of the multiple side plates 4. A second motor 17 is fixedly connected inside the multiple side plates 4. A brush 18 is slidably connected to the top of the work plate 19. A lead screw 8 is threadedly connected to the outer wall of the brush 18. A waste trough 9 is fixedly connected to the outer wall of the work plate 19.

[0029] Specifically, after the work is completed, the surface of the work plate 19 will be left with the processed debris. The second motor 17 drives the lead screw 8 to rotate, and the lead screw 8 drives the brush 18 to repeatedly clean the surface of the work plate 19. The cleaned debris will fall into the waste trough 9 for subsequent centralized processing.

[0030] Reference Figure 5 Gear 14 is fixedly connected to the output end of the first motor 16.

[0031] Specifically, the first motor 16 drives the gear 14, which in turn drives the slider 6 to move via the rack 15.

[0032] Reference Figure 4 Multiple racks 15 are slidably connected to the top of the worktable 3, and multiple I-beam rails 5 are fixedly connected to the top of the worktable 3.

[0033] Specifically, the rack 15 needs to be fixed on the worktable 3 to provide better transmission for the slider 6 that slides on the I-beam rail 5.

[0034] Reference Figure 3 One end of each of the multiple springs 11 is mounted on the outer wall of the rubber pad 12, and the other end of each of the multiple springs 11 is mounted on the outer wall of the slide bar 10.

[0035] Specifically, the expansion and contraction of multiple springs 11 can adapt to the shape of different workpieces. The retracted springs 11 play a fixing role and will not buffer the vibration during processing. The rubber pads 12 will replace them to reduce vibration and effectively ensure the service life of the device.

[0036] Reference Figure 1 The lead screw 8 is fixedly connected to the output end of the second motor 17, and the lead screw 8 is set on the outer wall of the working plate 19.

[0037] Specifically, the second motor 17 drives the lead screw 8 to slide on the top of the work plate 19, thereby driving the brush 18 to perform cleaning.

[0038] Reference Figure 1 The waste trough 9 is fixedly connected to the inner wall of multiple side plates 4, and the waste trough 9 is fixedly connected to the inner wall of the workbench 3.

[0039] Specifically, the waste trough 9 serves to collect the work debris swept by the brush 18, so it needs to be fixed in multiple directions. In particular, it needs to contact the workbench 3. One side of the waste trough 9 needs to pass through a side plate 4 to facilitate the collection of waste.

[0040] Reference Figure 1 Multiple sliders 6 are slidably connected to the outer wall of the work plate 19.

[0041] Specifically, there should be no gap between the slider 6 and the work plate 19 to prevent hard-to-clean debris from entering and affecting machining accuracy.

[0042] Reference Figure 1 Multiple side plates 4 are fixedly connected to the outer wall of the workbench 3.

[0043] Specifically, the side plate 4 needs to be fixed outside the workbench 3 to limit the cleaning component 20.

[0044] Reference Figure 2 The bottom of the workbench 3 is slidably connected to a lifting frame 2, and the bottom of the lifting frame 2 is fixedly connected to a base 1.

[0045] Specifically, the lifting frame 2 at the top of the base 1 can raise the structure to a suitable position, and then place the workpiece on top of the work plate 19.

[0046] Working Principle: When clamping and processing an object is required, the object is placed on the top of the work plate 19 at the top of the worktable 3. The first motor 16 drives the gear 14, which in turn drives the rack 15. The rack 15 is fixed to the outer wall of the slider 6, so the movement of the rack 15 can move the slider 6 back and forth to contact the object. The slider 6 slides on the outer wall of the I-beam rail 5. When the sliding rod 10 inside the fixed cylinder 13 inside the fixed plate 7 at the top of the slider 6 contacts the object, the spring 11 at the bottom will compress to adapt to different object shapes. The rubber pad 12 at the bottom provides shock absorption for the overall structure during processing, improving its service life. The lifting frame 2 on the base 1 can raise and lower the entire structure for convenient processing.

[0047] After the work is completed, many hard-to-clean debris will appear on the work plate 19. At this time, the cleaning component 20 is required. The second motor 17 drives the lead screw 8, and the brush 18 fixed to the lead screw 8 will sweep the work plate 19. The cleaned waste will fall into the waste trough 9 for subsequent centralized processing.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A precision positioning and clamping mechanism for jig processing, comprising a worktable (3), characterized in that: The workbench (3) is equipped with a first motor (16) inside. A gear (14) is rotatably connected to the top of the workbench (3). Multiple racks (15) are meshed with the outer wall of the gear (14). A slider (6) is fixedly connected to the outer wall of the multiple racks (15). An I-beam rail (5) is slidably connected to the outer wall of the multiple sliders (6). A fixing plate (7) is fixedly connected to the top of the multiple sliders (6). A fixing cylinder (13) is fixedly connected to the inner wall of the multiple fixing plates (7). A slide rod (10) is slidably connected to the inner wall of the multiple fixing cylinders (13). A rubber pad (12) is fixedly connected to the inner wall of the multiple fixing cylinders (13). A spring (11) is installed on the outer wall of the multiple rubber pads (12). A cleaning component (20) is provided on the top of the workbench (3).

2. The precision positioning and clamping mechanism for jig processing according to claim 1, characterized in that: The cleaning assembly (20) includes multiple side plates (4), a working plate (19) is fixedly connected to one side of each side plate (4), a second motor (17) is fixedly connected inside each side plate (4), a brush (18) is slidably connected to the top of the working plate (19), a lead screw (8) is threadedly connected to the outer wall of the brush (18), and a waste trough (9) is fixedly connected to the outer wall of the working plate (19).

3. The precision positioning and clamping mechanism for jig processing according to claim 1, characterized in that: The gear (14) is fixedly connected to the output end of the first motor (16).

4. The precision positioning and clamping mechanism for jig processing according to claim 1, characterized in that: Multiple racks (15) are slidably connected to the top of the worktable (3), and multiple I-beam rails (5) are fixedly connected to the top of the worktable (3).

5. The precision positioning and clamping mechanism for jig processing according to claim 1, characterized in that: One end of each of the springs (11) is mounted on the outer wall of the rubber pad (12), and the other end of each of the springs (11) is mounted on the outer wall of the slide bar (10).

6. The precision positioning and clamping mechanism for jig processing according to claim 2, characterized in that: The lead screw (8) is fixedly connected to the output end of the second motor (17), and the lead screw (8) is set on the outer wall of the working plate (19).

7. The precision positioning and clamping mechanism for jig processing according to claim 2, characterized in that: The waste trough (9) is fixedly connected to the inner wall of multiple side plates (4) and the waste trough (9) is fixedly connected to the inner wall of the workbench (3).

8. The precision positioning and clamping mechanism for jig processing according to claim 1, characterized in that: Multiple sliders (6) are slidably connected to the outer wall of the work plate (19).

9. The precision positioning and clamping mechanism for jig processing according to claim 2, characterized in that: Multiple side plates (4) are fixedly connected to the outer wall of the workbench (3).

10. A precision positioning and clamping mechanism for jig processing according to claim 1, characterized in that: The bottom of the workbench (3) is slidably connected to a lifting frame (2), and the bottom of the lifting frame (2) is fixedly connected to a base (1).

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