Anti-deformation positioning tool for machining thin-wall flexible gear

Abstract

The utility model discloses a thin-wall flexible gear machining anti-deformation positioning tool, and relates to the technical field of thin-wall flexible gear machining, the thin-wall flexible gear machining anti-deformation positioning tool comprises a plate body, a buffering mechanism and positioning mechanisms are fixedly mounted on the top surface of the plate body, the buffering mechanism is located among the multiple positioning mechanisms, each positioning mechanism comprises a shell, and the shell is fixedly mounted in the plate body; a servo motor is fixedly installed on one side of the shell, a two-way lead screw is fixedly installed at the output end of the servo motor, the two-way lead screw is rotatably installed in the shell, sliding blocks are arranged at the positions, engraved with opposite threads, of the outer surface of the two-way lead screw in a threaded and sleeved mode, and supporting plates are fixedly installed on the top faces of the sliding blocks. And the inner surface and the outer surface of the flexible gear can be positioned at the same time through the positioning plate, so that the tightening degree of the flexible gear during clamping can be reduced, and the situations such as deformation or dark cracks occurring during machining of the flexible gear are reduced.

Description

Technical Field

[0001] This application relates to the field of thin-walled flexible wheel machining technology, and in particular to a deformation-resistant positioning tooling for thin-walled flexible wheel machining. Background Technology

[0002] Flexible gears, also known as flexible cylinders, come in various types, such as thin-walled cup-shaped, thin-walled cylindrical, or flat-embedded. Thin-walled cylindrical flexible gears have a toothed ring on the outside of the open end, which deforms as the wave generator rotates. The bottom part of the cylinder is connected to the output shaft. When processing thin-walled flexible gears, positioning fixtures are often required to position them.

[0003] Regarding the aforementioned technologies, the inventors believe that some existing positioning fixtures may clamp the flexible wheel too tightly when positioning it, which may cause the flexible wheel to deform or crack under impact during processing, thus reducing its service life when put into use. Utility Model Content

[0004] The purpose of this application is to provide a deformation-resistant positioning fixture for machining thin-walled flexible wheels to improve the problem of excessive clamping.

[0005] The technical solution provided in this application for a thin-walled flexible wheel machining anti-deformation positioning fixture is as follows:

[0006] A deformation-resistant positioning fixture for thin-walled flexible wheel machining includes a plate. A buffer mechanism and multiple positioning mechanisms are fixedly installed on the top surface of the plate. The buffer mechanism is located among the multiple positioning mechanisms. Each positioning mechanism includes a housing, which is fixedly installed inside the plate. A servo motor is fixedly installed on one side of the housing. A bidirectional lead screw is fixedly installed at the output end of the servo motor. The bidirectional lead screw is rotatably installed inside the housing. A slider is threaded onto the outer surface of the bidirectional lead screw where opposite threads are engraved. A support plate is fixedly installed on the top surface of the slider, and a positioning plate is fixedly installed on one side of the support plate.

[0007] By adopting the above technical solution, the two positioning plates can be moved by the bidirectional lead screw in the positioning mechanism, so that the positioning plates simultaneously position the inner and outer surfaces of the flexible wheel, thereby preventing the flexible wheel from being clamped too tightly, which could lead to dark cracks during processing.

[0008] Optionally, the buffer mechanism includes a circular plate, which is fixedly installed on the top surface of the plate body. A limiting rod is fixedly inserted into the inner cavity of the circular plate, and a spring is movably sleeved on the outer surface of the limiting rod. A sliding plate is fixedly installed at one end of the spring, and the sliding plate is movably sleeved with the limiting rod. A support rod is fixedly installed on the side of the sliding plate opposite to the spring, and the end of the support rod movably passes through the circular plate and is fixedly installed with an arc-shaped plate.

[0009] By adopting the above technical solution, and by using a circular plate and multiple elastic arc-shaped plates on the side of the circular plate, the sliding plate can slide in the groove and compress the spring during the processing of the flexible wheel, thereby giving the flexible wheel a buffering effect and preventing the flexible wheel from being deformed by the impact force generated during processing.

[0010] Optionally, the top surface of the housing is lower than the upper surface of the plate.

[0011] By adopting the above technical solution, the housing can be made to ensure that the placement of the flexible wheel is not affected when the flexible wheel is placed on the upper surface of the plate.

[0012] Optionally, the positioning plates are arranged in parallel on opposite sides of the support plate.

[0013] By adopting the above technical solution, the positioning plates arranged in parallel can be used to make the arc surface of the positioning plate cooperate with the inner and outer surfaces of the flexible wheel.

[0014] Optionally, multiple shells are arranged in a ring array around the periphery of the circular plate.

[0015] By adopting the above technical solution, the circular plate is positioned among multiple positioning mechanisms, thereby enabling the positioning of the inner wall of the flexible wheel when the flexible wheel is fixed.

[0016] Optionally, a support is fixedly installed on one side of the housing, and the support is fixedly connected to the servo motor.

[0017] By adopting the above technical solution, the support can allow the servo motor to be mounted on one side of the housing, and the support can prevent the servo motor from falling off during use.

[0018] Optionally, the arc-shaped plates are also distributed in a ring array on the outer side of the circular plate.

[0019] By adopting the above technical solution, the arc-shaped plate extends and retracts on the outside of the circular plate, thereby positioning the flexible wheel.

[0020] Optionally, the circular plate has multiple grooves, and the limiting rod is fixedly inserted into the grooves.

[0021] By adopting the above technical solution, the groove allows the spring to move inside, thereby giving the arc plate a buffering effect.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. By setting up a positioning mechanism, the inner and outer surfaces of the flexible wheel can be positioned simultaneously through the positioning plate, thereby reducing the tightness of the flexible wheel when clamping, and thus reducing deformation or dark cracks that may occur during the processing of the flexible wheel. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model.

[0025] Figure 2 This is a schematic diagram of the positioning mechanism of this utility model.

[0026] Figure 3 This is a schematic diagram of the buffer mechanism of this utility model.

[0027] In the diagram, 1. Plate; 2. Buffer mechanism; 21. Circular plate; 22. Groove; 23. Spring; 24. Arc plate; 25. Limiting rod; 26. Sliding plate; 27. Support rod; 3. Positioning mechanism; 31. Servo motor; 32. Support; 33. Housing; 34. Support plate; 35. Two-way lead screw; 36. Slider; 37. Positioning plate. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail below.

[0029] A positioning fixture for preventing deformation during thin-walled flexible wheel machining, referring to Figure 1 The system includes a plate 1, with a buffer mechanism 2 fixedly installed in the middle of the top surface of the plate 1. The buffer mechanism 2 provides buffer space for the flexible wheel during processing. Multiple positioning mechanisms 3 arranged in a ring array are provided around the buffer mechanism 2. The positioning mechanisms 3 can position the inner and outer surfaces of the flexible wheel, thereby reducing the tension of the flexible wheel.

[0030] The positioning mechanism 3 includes a housing 33, a support 32, a servo motor 31, a bidirectional lead screw 35, and a positioning plate 37. The housing 33 is installed inside the plate 1, and the top surface of the housing 33 is lower than the upper surface of the housing 33, so as to prevent the housing 33 from affecting the placement of the flexible wheel. The support 32 is fixedly installed on one side of the housing 33, and the servo motor 31 is fixedly installed inside the support 32. The support 32 can prevent the servo motor 31 from falling off. The servo motor 31 is used as a power source.

[0031] A bidirectional lead screw 35 is fixedly installed at the output end of the servo motor 31. The bidirectional lead screw 35 is rotatably installed inside the housing 33, so that the servo motor 31 drives the bidirectional lead screw 35 to rotate inside the housing 33. Slider 36 is threadedly fitted at the different thread directions on the outer surface of the bidirectional lead screw 35. A support plate 34 is fixedly installed on the top surface of the slider 36. When the bidirectional lead screw 35 rotates, the sliders 36 on both sides will drive the support plate 34 to move relative to each other.

[0032] Positioning plates 37 are installed on opposite sides of the support plate 34, and the two positioning plates 37 are arranged in parallel, so that the curvature of the positioning plates 37 can be adapted to the inner and outer walls of the flexible wheel, thereby positioning it.

[0033] The buffer mechanism 2 includes a circular plate 21, a limiting rod 25, a spring 23, a sliding plate 26, and an arc-shaped plate 24. The circular plate 21 is located among multiple positioning mechanisms 3. The interior of the circular plate 21 has grooves 22 arranged in a circular array. A limiting rod 25 is fixedly installed on one inner wall of the groove 22. A spring 23 is movably sleeved on the outer surface of the limiting rod 25. A sliding plate 26 is fixedly installed at the end of the spring 23, allowing the sliding plate 26 to slide inside the groove 22. It should be noted that the sliding plate 26 slides with damping inside the groove 22. The sliding plate 26 can provide buffering by compressing the spring 23.

[0034] A support rod 27 is fixedly installed on one side of the sliding plate 26. A circular plate 21 extends from the end of the support rod 27, allowing the support rod 27 to extend and retract along the side of the circular plate 21. An arc-shaped plate 24 is fixedly installed at the end of the support rod 27, allowing the flexible wheel to press the support rod 27 through the arc-shaped plate 24, thereby causing the sliding plate 26 to slide with damping inside the groove 22.

[0035] The implementation principle of this application embodiment is as follows: First, the flexible wheel is placed on the top surface of the plate 1, and the inner wall of the flexible wheel is attached to the outer surface of the circular plate 21. The side wall will be located between the two positioning plates 37 in the positioning mechanism 3. Then, the servo motor 31 on the support 32 is started, so that the servo motor 31 drives the bidirectional lead screw 35 to rotate inside the housing 33. This causes the bidirectional lead screw 35 to drive the sliders 36 on both sides to move. The sliders 36 will drive the support plates 34 on both sides to move. The support plates 34 will then drive the positioning plates 37 to move towards the middle, thereby positioning the flexible wheel.

[0036] Then, after the flexible wheel is positioned, since the flexible wheel is in contact with the inner wall of the arc plate 24 of the buffer mechanism 2, when the flexible wheel is impacted during reprocessing, it will push the arc plate 24. The arc plate 24 drives the sliding plate 26 to slide on the outer surface of the limiting rod 25 through the support rod 27, and makes the sliding plate 26 slide in the groove 22 with damping, squeezing the spring 23, so that the sliding plate 26 and the spring 23 cooperate to buffer. Then the spring 23 recovers its elasticity and drives the arc plate 24 to reset through the sliding plate 26. The arc plate 24 then pushes the flexible wheel to reset.

[0037] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A thin-walled flexible gear machining anti-deformation positioning tooling, comprising a plate body (1), characterized in that: The top surface of the plate body (1) is fixedly installed with a buffer mechanism (2) and a plurality of positioning mechanisms (3), and the buffer mechanism (2) is located between the plurality of positioning mechanisms (3); The positioning mechanism (3) comprises a shell (33) fixedly installed inside the plate body (1), one side of the shell (33) is fixedly installed with a servo motor (31), the output end of the servo motor (31) is fixedly installed with a bidirectional screw rod (35), the bidirectional screw rod (35) is rotatably installed inside the shell (33), the outer surface of the bidirectional screw rod (35) is threadedly sleeved with a sliding block (36) at the opposite threads, and the top surface of the sliding block (36) is fixedly installed with a supporting plate (34), one side of the supporting plate (34) is fixedly installed with a positioning plate (37).

2. The thin-walled flexible gear machining anti-deformation positioning tooling according to claim 1, characterized in that: The buffer mechanism (2) comprises a circular plate (21) fixedly installed on the top surface of the plate body (1), a limiting rod (25) fixedly inserted into the inner cavity of the circular plate (21), a spring (23) movably sleeved on the outer surface of the limiting rod (25), a sliding plate (26) fixedly installed at one end of the spring (23), the sliding plate (26) movably sleeved with the limiting rod (25), a supporting rod (27) fixedly installed on the side of the sliding plate (26) away from the spring (23), and an arc-shaped plate (24) movably penetrating through the circular plate (21) and fixedly installed at the end of the supporting rod (27).

3. The thin-walled flexible gear machining anti-deformation positioning tooling of claim 1, wherein: The top surface of the shell (33) is lower than the upper surface of the plate body (1).

4. The thin-walled flexible gear machining anti-deformation positioning tooling of claim 1, wherein: The positioning plate (37) is in parallel distribution on the opposite side of the supporting plate (34).

5. The thin-walled flexible gear machining anti-deformation positioning tooling of claim 1, wherein: A plurality of the shell (33) are in annular array distribution around the circular plate (21).

6. The thin-walled flexible gear machining anti-deformation positioning tooling of claim 1, wherein: One side of the shell (33) is fixedly installed with a support (32) fixedly connected with the servo motor (31).

7. The thin-walled flexible gear machining anti-deformation positioning tooling of claim 2, wherein: The arc-shaped plate (24) is also in annular array distribution outside the circular plate (21).

8. The thin-walled flexible gear machining anti-deformation positioning tooling of claim 2, wherein: The circular plate (21) is provided with a plurality of grooves (22), and the limiting rod (25) is fixedly inserted into the grooves (22).

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