A cycloid gear grinding jig

Abstract

The utility model relates to a kind of cycloidal gear grinding clamps, including jig platform plate, jig installation base, axial positioning structure, radial positioning structure, the jig installation base is fixed in the bottom surface of jig platform plate, the axial positioning structure is set in the top surface center of jig platform plate, the jig platform plate, jig installation base, axial positioning structure such as axial center are set, the radial positioning structure is provided with four groups, four groups radial positioning structure such as circumferential angle setting is in the side of jig platform plate.The utility model optimizes the setting of cycloidal gear grinding clamp, structure has higher precision, can satisfy the requirement of fine processing, and structure uses general design, is suitable for a variety of specifications cycloidal gear processing, in addition structure uses replaceable contact component, reduce maintenance cost, suitable for promotion and use.

Description

Technical Field

[0001] This utility model relates to the field of machining fixtures, and in particular to a cycloidal gear grinding fixture. Background Technology

[0002] As the core component of a cycloidal pinwheel reducer, the tooth profile accuracy of the cycloidal wheel directly affects its transmission efficiency and lifespan. Existing cycloidal wheel grinding fixtures suffer from problems such as low clamping accuracy, poor clamping efficiency, weak versatility, and severe wear, making it difficult to meet the needs of high-precision machining and mass production. Therefore, a new cycloidal wheel grinding fixture is designed. Utility Model Content

[0003] The purpose of this utility model is to provide a cycloidal gear grinding fixture to solve the above-mentioned technical problems. To achieve the above purpose, this utility model adopts the following technical solution:

[0004] A cycloidal gear grinding fixture includes a fixture platform plate, a fixture mounting base, a central positioning structure, and a radial positioning structure. The fixture mounting base is fixed to the bottom surface of the fixture platform plate, and the central positioning structure is located at the center of the top surface of the fixture platform plate. The fixture platform plate, fixture mounting base, and central positioning structure are all axially aligned. Four sets of radial positioning structures are arranged at equal circumferential angles on the sides of the fixture platform plate.

[0005] Based on the above technical solution, the radial positioning structure consists of a radial drive screw, a screw drive motor assembly, a slide plate embedded in the groove, a central push rod, and an outer ceramic sleeve. The side of the clamping platform plate is provided with radial grooves with equal circumferential angles. A motor fixing plate is provided on the clamping platform plate outside the radial groove. A screw through hole is opened on the motor fixing plate. The screw drive motor assembly is fixed on the outside of the motor fixing plate. The radial drive screw is connected to the side end of the screw drive motor assembly and passes through the screw through hole. The slide plate embedded in the groove is embedded and connected in the radial groove, and the slide plate embedded in the groove can slide laterally in the radial groove. The radial drive screw is threadedly connected to the slide plate embedded in the groove. The central push rod is fixed to the top surface of the side end of the slide plate embedded in the groove. The outer ceramic sleeve is sleeved on the outside of the central push rod.

[0006] Based on the above technical solution, the axial positioning structure consists of a horizontal support plate, a support plate spring, a central upright, a tapered outer expansion plate, an inner spring in the outer expansion plate, and an upper end clamping nut. The central upright is fixedly installed at the center of the top surface of the clamping platform plate. The horizontal support plate is installed on the outside of the central upright. A support plate spring is installed between the horizontal support plate and the clamping platform plate. The central upright has two rows of spring embedding holes. Multiple sets of tapered outer expansion plates are arranged at equal circumferential angles. Two rows of outer expansion plate inner springs are installed on the inner side of the multiple sets of tapered outer expansion plates. The tapered outer expansion plates are installed on the outside of the central upright, and the inner ends of the springs in the outer expansion plates are fixed in the spring embedding holes. The upper end of the central upright is provided with a clamping thread, and the upper end clamping nut is threadedly connected to the clamping thread at the upper end of the central upright.

[0007] Compared with the prior art, the present invention has the following advantages: The present invention optimizes the setting of the cycloidal wheel grinding fixture, the structure has higher precision, can meet the requirements of fine machining, and the structure adopts a universal design, which is suitable for machining cycloidal wheels of various specifications. In addition, the structure adopts replaceable contact parts, reducing maintenance costs and making it suitable for widespread use. Attached Figure Description

[0008] Figure 1 This is a general appearance diagram of the present utility model.

[0009] Figure 2 This is a detailed schematic diagram showing the radial positioning structure of this utility model.

[0010] Figure 3 This is a detailed schematic diagram showing the disassembled axis positioning structure of this utility model.

[0011] In the diagram: 1. Fixture platform plate; 2. Fixture mounting base; 3. Axial positioning structure; 4. Radial positioning structure; 5. Radial drive screw; 6. Screw drive motor assembly; 7. Slide plate embedded in the slide groove; 8. Central push rod; 9. Outer ceramic sleeve; 10. Radial slide groove; 11. Motor fixing plate; 12. Screw through hole; 13. Horizontal support plate; 14. Support plate spring; 15. Central upright; 16. Conical outer expansion plate; 17. Outer expansion plate inner spring; 18. Upper end clamping nut; 19. Spring embedded hole; 20. Clamping thread. Detailed Implementation

[0012] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0013] A cycloidal gear grinding fixture includes a fixture platform plate 1, a fixture mounting base 2, a central positioning structure 3, and a radial positioning structure 4. The fixture mounting base 2 is fixed to the bottom surface of the fixture platform plate 1. The central positioning structure 3 is located at the center of the top surface of the fixture platform plate 1. The fixture platform plate 1, the fixture mounting base 2, and the central positioning structure 3 are all axially aligned. Four sets of radial positioning structures 4 are arranged at equal circumferential angles on the side of the fixture platform plate 1.

[0014] The radial positioning structure 4 consists of a radial drive screw 5, a screw drive motor assembly 6, a slide plate 7 embedded in the groove, a central push rod 8, and an outer ceramic sleeve 9. The side of the clamping platform plate 1 is provided with a radial groove 10 with equal circumferential angles. The clamping platform plate 1 outside the radial groove 10 is provided with a motor fixing plate 11. The motor fixing plate 11 has a screw through hole 12. The screw drive motor assembly 6 is fixed to the outside of the motor fixing plate 11. The radial drive screw 5 is connected to the side end of the screw drive motor assembly 6. The radial drive screw 5 passes through the screw through hole 12. The slide plate 7 embedded in the groove is embedded in the radial groove 10 and can slide laterally within the radial groove 10. The radial drive screw 5 is threadedly connected to the slide plate 7 embedded in the groove. The central push rod 8 is fixed to the top surface of the side end of the slide plate 7 embedded in the groove. The outer ceramic sleeve 9 is sleeved on the outside of the central push rod 8.

[0015] The axial positioning structure 3 consists of a horizontal support plate 13, a support plate spring 14, a central upright 15, a tapered outer expansion plate 16, an inner spring 17 of the outer expansion plate, and an upper end clamping nut 18. The central upright 15 is fixedly installed at the center of the top surface of the clamping platform plate 1. The horizontal support plate 13 is located outside the central upright 15. A support plate spring 14 is installed between the horizontal support plate 13 and the clamping platform plate 1. The central upright 15 has two rows of springs, one above the other. The spring has an embedded hole 19. Multiple sets of tapered outer expansion plates 16 are arranged at equal circumferential angles. Two rows of inner springs 17 are arranged inside the multiple sets of tapered outer expansion plates 16. The tapered outer expansion plates 16 are arranged outside the central upright 15, and the inner ends of the inner springs 17 are fixed in the spring embedded hole 19. The upper end of the central upright 15 is provided with a clamping thread 20, and the upper end clamping nut 18 is threadedly connected to the clamping thread 20 at the upper end of the central upright 15.

[0016] Working principle of this utility model: The working principle of this structure is simple, mainly divided into two stages: clamping and maintenance.

[0017] The clamping process involves installing the cycloidal wheel onto the clamp. Before installation, the upper clamping nut 18 needs to be removed from the clamping thread 20. The center hole of the cycloidal wheel is aligned with the position of the center support rod 15, and the center support rod 15 is placed through the center hole of the cycloidal wheel. During placement, the bottom side of the cycloidal wheel contacts the top surface of the horizontal support plate 13. During this process, the center hole of the cycloidal wheel gradually squeezes the conical outer expansion plate 16, and the spring 17 inside the outer expansion plate is gradually compressed. Because there are multiple conical outer expansion plates 16, this structure allows the outward... The radial force is balanced, making the center position of the cycloidal wheel more accurately aligned with the center position of the clamp. The radial drive screw 5 is synchronously driven by multiple sets of lead screw drive motors 6. As the slide plate 7, the center push rod 8, and the outer ceramic sleeve 9 move inward, the cycloidal wheel can be squeezed and clamped according to the precise center position. The outward expansion force of the unbalanced multi-conical expansion plates 16 is balanced, further calibrating the center position of the cycloidal wheel and the clamp. After the position is finally determined, the upper clamping nut 18 is connected to the clamping thread 20 and presses the cycloidal wheel to fix its position.

[0018] During installation, disassembly, clamping, and processing, the cycloidal wheel inevitably experiences some wear on the horizontal support plate 13, the conical outer expansion plate 16, the inner spring 17 of the outer expansion plate, and the outer ceramic sleeve 9. Since the horizontal support plate 13, the conical outer expansion plate 16, the inner spring 17 of the outer expansion plate, and the outer ceramic sleeve 9 are all in soft contact and soft fixation with the clamping platform plate 1, replacement and maintenance are relatively straightforward, thus extending the service life of the overall structure.

[0019] The above description is a preferred embodiment of the present utility model. For those skilled in the art, any changes, modifications, substitutions and variations made to the implementation methods without departing from the principles and spirit of the present utility model, based on the teachings of the present utility model, still fall within the protection scope of the present utility model.

Claims

1. A cycloidal gear grinding fixture, characterized in that, The fixture includes a fixture platform plate (1), a fixture mounting base (2), an axial positioning structure (3), and a radial positioning structure (4). The fixture mounting base (2) is fixed to the bottom surface of the fixture platform plate (1). The axial positioning structure (3) is set at the center of the top surface of the fixture platform plate (1). The fixture platform plate (1), the fixture mounting base (2), and the axial positioning structure (3) are axially positioned. There are four sets of radial positioning structures (4). The four sets of radial positioning structures (4) are set at the same circumferential angle on the side of the fixture platform plate (1).

2. The cycloidal gear grinding fixture according to claim 1, characterized in that, The radial positioning structure (4) consists of a radial drive screw (5), a screw drive motor assembly (6), a slide plate embedded in the slide groove (7), a central push rod (8), and an outer ceramic sleeve (9). The side of the clamping platform plate (1) is provided with a radial slide groove (10) with equal circumferential angles. The clamping platform plate (1) outside the radial slide groove (10) is provided with a motor fixing plate (11). The motor fixing plate (11) has a screw through hole (12). The screw drive motor assembly (6) is fixed to the outside of the motor fixing plate (11). On the side, the radial drive screw (5) is connected to the side end of the screw drive motor assembly (6). The radial drive screw (5) passes through the screw through hole (12). The slide plate (7) is embedded in the radial slide groove (10) and can slide laterally in the radial slide groove (10). The radial drive screw (5) is threaded on the slide plate (7). The central push rod (8) is fixed on the top surface of the side end of the slide plate (7). The outer ceramic sleeve (9) is sleeved on the outside of the central push rod (8).

3. The cycloidal gear grinding fixture according to claim 2, characterized in that, The axial positioning structure (3) consists of a horizontal support plate (13), a support plate spring (14), a central upright (15), a conical outer expansion plate (16), an inner spring (17) of the outer expansion plate, and an upper end clamping nut (18). The central upright (15) is fixedly installed at the center of the top surface of the clamping platform plate (1). The horizontal support plate (13) is installed on the outside of the central upright (15). A support plate spring (14) is installed between the horizontal support plate (13) and the clamping platform plate (1). The central upright (15) has two openings at the top and bottom. The spring has an embedded hole (19). The tapered outer expansion plates (16) are arranged in multiple sets with equal circumferential angles. Two rows of outer expansion plate inner springs (17) are arranged inside the multiple sets of tapered outer expansion plates (16). The tapered outer expansion plates (16) are arranged outside the central upright (15), and the inner end of the outer expansion plate inner spring (17) is fixed in the spring embedded hole (19). The upper end of the central upright (15) is provided with a clamping thread (20). The upper end clamping nut (18) is threaded to the clamping thread (20) at the upper end of the central upright (15).

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