A horizontal machining fixture for robot joint reducers

Abstract

This utility model relates to the field of reducer processing technology, specifically disclosing a horizontal processing fixture for a robot joint reducer, including a base plate and a top plate. The upper surface of the top plate has four symmetrically distributed sliding grooves, each with a slider slidably connected to its inner wall. The lower surfaces of the four sliders are fixedly connected to a first connecting shaft. A driving mechanism is provided between the base plate and the top plate. The driving mechanism includes a second connecting shaft fixedly connected between the base plate and the top plate. The outer wall of the second connecting shaft is rotatably connected to a first turntable and a second turntable located above the first turntable. A bidirectional screw drives the first and second turntables to rotate in opposite directions, causing the clamping plates in the left-right and front-back directions to move synchronously, achieving multi-directional simultaneous clamping. Even if one direction contacts the workpiece first, pressure can still be applied in the other direction, ensuring uniform force on the reducer housing and preventing displacement or loosening. This is particularly suitable for the stable clamping of irregular workpieces.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer processing technology, and specifically discloses a horizontal processing fixture for robot joint speed reducers. Background Technology

[0002] A speed reducer is an independent component consisting of gear drives, worm drives, or gear-worm drives enclosed in a rigid housing. It is commonly used as a speed reduction transmission device between a prime mover and a driven machine. It plays a role in matching speeds and transmitting torque between the prime mover and the driven machine or actuator, and its applications are extremely widespread in modern machinery.

[0003] Chinese patent CN212192148U discloses a fixture for machining reducer housings, relating to the technical field of reducer machining equipment. It includes a placement base, with a vertical rod fixedly mounted on the upper surface of the base. A placement box is fixedly mounted at the top of the vertical rod. Support plates are fixedly mounted on both sides of the placement base, and forward / reverse motors are fixedly mounted on the inner sides of both support plates. A connecting groove is formed inside each of the two placement boxes, and a movable plate is fixedly mounted inside the connecting groove. The movable plate passes through the placement box and extends to the outside of the placement box, where a clamping plate is fixedly mounted. This fixture for machining reducer housings, through the use of a U-shaped support base and a dust collection box, facilitates the timely collection of debris generated during machining into the dust collection box with the cooperation of a filter and an electric push rod. The dust collection box is movably positioned inside the U-shaped support base, allowing operators to easily clean the debris from the dust collection box. The entire fixture structure is easy to operate.

[0004] The aforementioned document discloses a fixture for machining reducer housings, which uses springs to clamp the upper and lower sides of the reducer housing. However, the clamping of the reducer housing is non-rigid and not secure enough. Furthermore, it can only clamp and fix the left and right sides of the reducer housing, while the reducer housing will shift in the front and back directions. Therefore, a horizontal machining fixture for robot joint reducers is needed to solve this problem. Utility Model Content

[0005] This utility model proposes a horizontal machining fixture for robot joint reducers. It achieves multi-directional synchronous clamping through a bidirectional screw drive linkage mechanism, which not only ensures the stable clamping of the reducer housing, but also has the advantages of simple operation and prevention of workpiece damage.

[0006] This utility model is implemented as follows: a horizontal machining fixture for a robot joint reducer includes a base plate and a top plate. The upper end face of the top plate is provided with four symmetrically distributed sliding grooves. The inner walls of the four sliding grooves are slidably connected to sliders. The upper end faces of the four sliders are fixedly connected to clamping plates. The lower end faces of the four sliders are fixedly connected to first connecting shafts. A driving mechanism is provided between the base plate and the top plate.

[0007] The driving mechanism includes a second connecting shaft fixedly connected between the bottom plate and the top plate. The outer wall of the second connecting shaft is rotatably connected to a first turntable and a second turntable located above the first turntable. The lower end face of the first turntable is rotatably connected to two circumferentially distributed first connecting rods via the connecting shaft. The other ends of the two first connecting rods are rotatably connected to two first connecting shafts in the left-right direction, respectively. The upper end face of the second turntable is rotatably connected to two circumferentially distributed second connecting rods via the connecting shaft. The other ends of the two second connecting rods are rotatably connected to two first connecting shafts in the front-back direction, respectively.

[0008] As a preferred horizontal machining fixture for a robot joint reducer according to this utility model, the driving mechanism further includes a first rotating block rotatably connected to the upper end face of the first turntable via a coupling shaft, a second rotating block rotatably connected to the lower end face of the second turntable via a coupling shaft, and a bidirectional screw threaded to the inner walls of the first rotating block and the second rotating block.

[0009] As a preferred horizontal machining fixture for a robot joint reducer according to this utility model, rubber pads are provided on the outer walls of the four adjacent clamping plates.

[0010] As a preferred horizontal machining fixture for a robot joint reducer according to this utility model, the slider is I-shaped.

[0011] As a preferred horizontal machining fixture for a robot joint reducer according to this utility model, both ends of the bidirectional screw are provided with knobs.

[0012] As a preferred horizontal machining fixture for a robot joint reducer according to this utility model, multiple support legs are fixedly connected between the bottom plate and the top plate.

[0013] The beneficial effects of this utility model are:

[0014] 1. The first and second turntables are driven to rotate in opposite directions by a bidirectional screw, which in turn drives the clamping plates in the left-right and front-back directions to move synchronously, achieving multi-directional clamping at the same time. Even if one direction contacts the workpiece first, pressure can still be applied in the other direction, ensuring that the reducer housing is subjected to uniform force and avoiding deviation or loosening. It is especially suitable for the stable clamping of irregular workpieces.

[0015] 2. Utilizing an I-shaped slider anti-detachment design, combined with a knob-type bidirectional screw and linkage transmission mechanism, multi-directional fixing can be achieved simply by rotating the screw with one hand, saving time and effort. Rubber pads protect the workpiece surface, and support legs enhance overall stability, balancing efficiency and safety, making it suitable for batch processing scenarios. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0017] Figure 1 This is an overall structural diagram of a horizontal machining fixture for a robot joint reducer according to this utility model.

[0018] Figure 2 This is a front sectional view of a horizontal machining fixture for a robot joint reducer according to this utility model.

[0019] Figure 3 This is a right view of a horizontal machining fixture for a robot joint reducer according to this utility model.

[0020] Figure 4 This is an internal structural diagram of a horizontal machining fixture for a robot joint reducer according to this utility model.

[0021] Figure 5 This is a structural diagram of the slider of this utility model.

[0022] The markings in the diagram are: 1. Base plate; 2. Top plate; 3. Slide groove; 4. Slider; 5. Clamping plate; 6. First connecting shaft; 7. Second connecting shaft; 8. First turntable; 9. Second turntable; 10. First connecting rod; 11. Second connecting rod; 12. First rotating block; 13. Second rotating block; 14. Bidirectional screw. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and specific embodiments to aid in understanding its content. Unless otherwise specified, the methods used in this invention are conventional methods; the raw materials and apparatus used, unless otherwise specified, are conventional commercially available products.

[0024] Please see Figure 1-5 A horizontal machining fixture for a robot joint reducer includes a base plate 1 and a top plate 2. The upper end face of the top plate 2 is provided with four symmetrically distributed sliding grooves 3. The inner walls of the four sliding grooves 3 are slidably connected to sliders 4. The upper end faces of the four sliders 4 are fixedly connected to clamping plates 5. The lower end faces of the four sliders 4 are fixedly connected to first connecting shafts 6. A driving mechanism is provided between the base plate 1 and the top plate 2.

[0025] The drive mechanism includes a second shaft 7 fixedly connected between the base plate 1 and the top plate 2. The outer wall of the second shaft 7 is rotatably connected to a first turntable 8 and a second turntable 9 located above the first turntable 8. The lower end face of the first turntable 8 is rotatably connected to two circumferentially distributed first connecting rods 10 via the shaft. The other ends of the two first connecting rods 10 are rotatably connected to two first shafts 6 in the left and right directions, respectively. The upper end face of the second turntable 9 is rotatably connected to two circumferentially distributed second connecting rods 11 via the shaft. The other ends of the two second connecting rods 11 are rotatably connected to two first shafts 6 in the front and back directions, respectively.

[0026] In this embodiment: the first turntable 8 is rotated counterclockwise. The first turntable 8 drives the sliders 4 on the left and right sides to slide relative to each other along the slide groove 3 through the two first connecting rods 10 and the first connecting shaft 6, thereby driving the clamping plates 5 on the left and right sides to move relative to each other, thus fixing the reducer housing from the left and right direction. The second turntable 9 is rotated clockwise. The second turntable 9 drives the sliders 4 on the front and rear sides to slide relative to each other along the slide groove 3 through the two second connecting rods 11 and the first connecting shaft 6, thereby driving the clamping plates 5 on the front and rear sides to move relative to each other, thus fixing the reducer housing from the front and rear direction, making the fixation more secure.

[0027] As a technical optimization of this utility model, the drive mechanism further includes a first rotating block 12 rotatably connected to the upper end face of the first turntable 8 via a coupling shaft, a second rotating block 13 rotatably connected to the lower end face of the second turntable 9 via a coupling shaft, and a bidirectional screw 14 threadedly connected to the inner walls of the first rotating block 12 and the second rotating block 13.

[0028] In this embodiment: rotating the bidirectional screw 14 causes the first rotating block 12 and the second rotating block 13 to move in opposite directions. The first rotating block 12 further drives the first turntable 8 to rotate counterclockwise, and the second rotating block 13 further drives the second turntable 9 to rotate clockwise. This causes the clamping plates 5 on the left and right sides and the clamping plates 5 on the front and rear sides to clamp onto the left and right sides and the front and rear sides of the reducer housing, respectively. When the clamping plate 5 in one direction first contacts the reducer housing, continuing to rotate the bidirectional screw 14 allows the clamping plate 5 in the other direction to continue moving towards the reducer housing until the reducer housing is firmly fixed.

[0029] As a technical optimization of this utility model, rubber pads are provided on the outer walls of the four clamping plates 5 that are close to each other.

[0030] In this embodiment, rubber pads are provided on the outer walls of the four clamping plates 5 that are close to each other to prevent damage to the reducer housing.

[0031] As a technical optimization of this utility model, the slider 4 is in the shape of an I-beam.

[0032] In this embodiment, the slider 4 is set in an I-shape to prevent it from coming off the groove 3.

[0033] As a technical optimization of this utility model, knobs are provided at both ends of the bidirectional screw 14.

[0034] In this embodiment, by providing knobs at both ends of the bidirectional screw 14, it is easy to rotate the bidirectional screw 14 from both ends.

[0035] As a technical optimization of this utility model, multiple support legs are fixedly connected between the base plate 1 and the top plate 2.

[0036] In this embodiment: the support legs facilitate stable support of the top plate 2.

[0037] The working principle and usage process of this utility model are as follows: In use, the accelerator housing is first placed above the top plate 2 and between the four clamping plates 5. Then, the bidirectional screw 14 is rotated, which drives the first rotating block 12 and the second rotating block 13 to move in opposite directions. The first rotating block 12 further drives the first turntable 8 to rotate counterclockwise. The first turntable 8 drives the sliders 4 on the left and right sides to slide relative to each other along the slide groove 3 through the two first connecting rods 10 and the first connecting shaft 6, thereby driving the clamping plates 5 on the left and right sides to move relative to each other and fix the reducer housing from the left and right directions. The second rotating block 13 further drives the second turntable 9 to rotate clockwise. The second turntable 9 drives the sliders 4 on the front and rear sides to slide relative to each other along the slide groove 3 through the two second connecting rods 11 and the first connecting shaft 6, thereby driving the clamping plates 5 on the front and rear sides to move relative to each other and fix the reducer housing from the front and rear directions. When one clamping plate 5 first contacts the reducer housing, the bidirectional screw 14 is rotated again, which allows the clamping plate 5 on the other side to continue to move towards the accelerator housing until the reducer housing is firmly fixed.

[0038] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.

Claims

1. A horizontal machining fixture for a robot joint reducer, comprising a base plate (1) and a top plate (2), characterized in that: The top plate (2) has four symmetrically distributed sliding grooves (3) on its upper end surface. The inner walls of the four sliding grooves (3) are slidably connected to sliders (4). The upper end surfaces of the four sliders (4) are fixedly connected to clamps (5). The lower end surfaces of the four sliders (4) are fixedly connected to first connecting shafts (6). A driving mechanism is provided between the bottom plate (1) and the top plate (2). The driving mechanism includes a second connecting shaft (7) fixedly connected between the bottom plate (1) and the top plate (2). The outer wall of the second connecting shaft (7) is rotatably connected to a first turntable (8) and a second turntable (9) located above the first turntable (8). The lower end face of the first turntable (8) is rotatably connected to two circumferentially distributed first connecting rods (10) via the connecting shaft. The other ends of the two first connecting rods (10) are respectively rotatably connected to two first connecting shafts (6) in the left and right directions. The upper end face of the second turntable (9) is rotatably connected to two circumferentially distributed second connecting rods (11) via the connecting shaft. The other ends of the two second connecting rods (11) are respectively rotatably connected to two first connecting shafts (6) in the front and back directions.

2. The horizontal machining fixture for a robot joint reducer according to claim 1, characterized in that: The drive mechanism further includes a first rotating block (12) rotatably connected to the upper end face of the first turntable (8) via a coupling shaft, a second rotating block (13) rotatably connected to the lower end face of the second turntable (9) via a coupling shaft, and a bidirectional screw (14) threadedly connected to the inner walls of the first rotating block (12) and the second rotating block (13).

3. The horizontal machining fixture for a robot joint reducer according to claim 1, characterized in that: Rubber pads are provided on the outer walls of the four clamps (5) that are close to each other.

4. A horizontal machining fixture for a robot joint reducer according to claim 1, characterized in that: The slider (4) is in the shape of an I-beam.

5. A horizontal machining fixture for a robot joint reducer according to claim 2, characterized in that: Both ends of the bidirectional screw (14) are equipped with knobs.

6. A horizontal machining fixture for a robot joint reducer according to claim 1, characterized in that: Multiple support legs are fixedly connected between the bottom plate (1) and the top plate (2).

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