Reduction gearbox positioning tool

Abstract

The invention relates to the technical field of reduction gearbox machining, and discloses a reduction gearbox positioning tool which comprises a main plate. The movable fixed core is connected to the main plate in a sliding manner; a bearing chamber of the reduction gearbox is placed on the movable fixed core; a supporting nail of the reduction gearbox is attached to the movable fixed core; the elastic structure is arranged on the main plate and elastically presses the top surface of the reduction gearbox; the adjusting structure is arranged on the main plate and acts on the bottom of the movable fixed core so as to adjust the position of the movable fixed core and further adjust the position of the center of the reduction gearbox; and the compressing structure compresses the reduction gearbox after the position of the movable fixed core is adjusted by the adjusting structure. The bearing chamber of the reduction gearbox is centered, then the reduction gearbox is positioned through the elastic structure, and the movable fixed core is adjusted through the adjusting structure, so that the position of the center of the reduction gearbox is accurately adjusted, secondary positioning is avoided, the cost is reduced, the machining efficiency is improved, and it is ensured that the reduction gearbox is accurately machined subsequently; and a foundation is laid for dimensional stability of subsequent reduction gearbox finished products.

Description

Technical Field

[0001] The present invention relates to the technical field of speed reducer processing, and particularly relates to a positioning tooling for a speed reducer. Background Art

[0002] When processing a speed reducer at present, first, the speed reducer is positioned and installed on a lathe, and the base surface, the stop and the bearing chamber on one side of the speed reducer are machined by the lathe; then, the speed reducer is positioned and installed on a machining center, and the stop and the bearing chamber on the other side of the speed reducer are machined by the machining center. By adopting the above method for processing the speed reducer, the speed reducer needs to be repositioned twice, which not only has complex operation, low positioning accuracy, but also has low processing efficiency and high processing cost. Summary of the Invention

[0003] In view of this, the present invention provides a positioning tooling for a speed reducer to solve the problem that when processing a speed reducer at present, first, the speed reducer is positioned and installed on a lathe, and the base surface, the stop and the bearing chamber on one side of the speed reducer are machined by the lathe; then, the speed reducer is positioned and installed on a machining center, and the stop and the bearing chamber on the other side of the speed reducer are machined by the machining center. By adopting this method, the speed reducer needs to be repositioned twice, which not only has complex operation, low positioning accuracy, but also has low processing efficiency and high processing cost.

[0004] The present invention provides a positioning tooling for a speed reducer, including:

[0005] A main board;

[0006] A movable centering core, slidably connected to the main board; the bearing chamber provided in the speed reducer is adapted to be placed on the movable centering core; and the supporting pins provided in the speed reducer are arranged in a fitting manner with the movable centering core;

[0007] An elastic structure, arranged on the main board, and the elastic structure is adapted to elastically press the top surface of the speed reducer;

[0008] An adjusting structure, arranged on the main board, and the adjusting structure is adapted to act on the bottom of the movable centering core to adjust the position of the movable centering core, and further adjust the position of the center of the speed reducer;

[0009] A pressing structure, adapted to press the speed reducer after the adjusting structure adjusts the position of the movable centering core. Beneficial effects: By adopting the above technical solution of the present application, centering is performed through the bearing chamber of the speed reducer, and then the speed reducer is positioned by the elastic structure, and the position of the movable centering core is adjusted by the adjusting structure to accurately adjust the position of the center of the speed reducer, avoiding repositioning, reducing costs, improving processing efficiency, ensuring accurate processing of the speed reducer subsequently, and laying a foundation for the dimensional stability of the subsequent speed reducer finished product.

[0010] Optionally, the elastic structure includes:

[0011] The skateboard is slidably connected to the main board, and the bottom surface of the skateboard is adapted to contact the top surface of the speed reducer box;

[0012] The first elastic member has its bottom end abutted against the top surface of the skateboard;

[0013] The baffle is fixedly arranged on the main board, and the bottom surface of the baffle contacts the top end of the first elastic member;

[0014] The support member is fixedly arranged on the top surface of the baffle;

[0015] The connecting member has its bottom end sliding through the baffle from the top surface of the baffle and then fixedly connected to the skateboard; the top end of the connecting member is located at the upper part of the baffle;

[0016] The lever has its first end as a free end, and the second end of the lever is connected to the top end of the connecting member; the part between the two ends of the lever is rotatably connected to the top end of the support member;

[0017] The elastic structure has a first state in which after overcoming the elastic force of the first elastic member and pressing down the free end of the lever, the skateboard is driven to move upward to place the bearing chamber of the speed reducer box on the movable centering core; and a second state in which after releasing the free end of the lever, the skateboard is pressed against the top surface of the speed reducer box under the action of the elastic restoring force of the first elastic member. Beneficial effects: By adopting the above technical solutions, the present application eliminates the positioning gap of the speed reducer box by making full use of the elastic force of the first elastic member to achieve precise positioning, ensuring precise machining of the speed reducer box subsequently and laying a foundation for the dimensional stability of the subsequent finished speed reducer box. Moreover, the speed reducer box positioning tooling of the present application has the advantages of simple operation, safety and reliability, labor saving and time saving, and high precision.

[0018] Optionally, there are two first elastic members symmetrically arranged about the vertical center line of the speed reducer box. Beneficial effects: By adopting the above technical solutions, the present application ensures the balanced force of the speed reducer box.

[0019] Optionally, a limiting portion is provided at the top end of the support member, and the second end of the lever is slidably sleeved on the part of the support member between the limiting portion and the top surface of the baffle; and a second elastic member is provided between the second end of the lever and the top surface of the baffle; the elastic force of the second elastic member is adapted to push the second end of the lever against the limiting portion. Beneficial effects: By adopting the above technical solutions, the present application stably limits the lever through the second elastic member.

[0020] Optionally, a guiding slot is provided on the skateboard in the vertical direction, and the first elastic member is located in the guiding slot. Beneficial effects: By adopting the above technical solutions, the present application ensures that the force application of the first elastic member is in the vertical direction to prevent deflection.

[0021] Optionally, the adjustment structure includes:

[0022] An adjusting screw that is threadedly screwed into the groove provided on the main board from the bottom surface of the main board and is threadedly screwed onto the protrusion provided on the movable centering core; the protrusion extends into the groove, and there is a gap between the protrusion and the groove;

[0023] A set screw that is adapted to be screwed into the main board to abut against the adjusting screw after the adjusting screw is screwed to drive the movable centering core to the target position. Beneficial effect: By adopting the above technical solution, the adjusting screw is stably limited and fixed by the set screw in this application.

[0024] Optionally, the outer end of the adjusting screw is located in the first counterbore provided on the main board, and the outer end of the set screw is located in the second counterbore provided on the main board. Beneficial effect: By adopting the above technical solution, the structure of the speed reducer positioning tooling is more compact in this application.

[0025] Optionally, the pressing structure includes:

[0026] Two first pressing plates are respectively arranged near the left and right sides of the lower part of the speed reducer;

[0027] Two second pressing plates are respectively arranged near the left and right sides of the upper part of the speed reducer;

[0028] The first pressing plate and the second pressing plate are adapted to be connected to the main board through pressing screws to press and fix the speed reducer after the position of the movable centering core is adjusted by the adjustment structure.

[0029] Optionally, when the pressing screw passes through the protrusion and the groove, a counterbore is provided on the main board corresponding to the groove and on the side away from the speed reducer, the opening size of the counterbore is larger than the opening size of the groove, and a connecting plate is fitted in the counterbore, and the pressing screw is screwed into the connecting plate. Beneficial effect: By adopting the above technical solution, the structural connection is ensured to be reliable in this application.

[0030] Optionally, the side of the main board away from the speed reducer is adapted to be connected to the connecting flange of the lathe spindle. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0032] Figure 1Schematic cross-sectional structure of the speed reducer positioning tooling provided in the embodiment of the present invention Figure 1 ;

[0033] Figure 2 Schematic cross-sectional structure of the speed reducer positioning tooling provided in the embodiment of the present invention Figure 2 。

[0034] Explanation of reference numerals:

[0035] 1. Adjusting screw; 2. Set screw; 3. Supporting pin; 4. Movable centering core; 5. Compression screw; 6. Connecting plate; 7. Main board; 8. Speed reducer; 9. Slide plate; 10. First pressing plate; 11. First elastic member; 12. Connecting flange; 13. Baffle; 14. Support member; 15. Lever; 16. Second pressing plate; 17. Connecting member; 18. Second elastic member. Specific embodiments

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0037] As Figures 1 to 2 shown in a specific embodiment of the speed reducer positioning tooling, it includes: a main board 7, a movable centering core 4, an elastic structure, an adjusting structure and a pressing structure.

[0038] As Figure 1 shown, the movable centering core 4 is slidably connected to the main board 7; the bearing chamber provided on the speed reducer 8 is adapted to be placed on the movable centering core 4; and the supporting pin 3 provided on the speed reducer 8 is arranged in contact with the movable centering core 4. The elastic structure is arranged on the main board 7, and the elastic structure is adapted to elastically press the top surface of the speed reducer 8. The adjusting structure is arranged on the main board 7, and the adjusting structure is adapted to act on the bottom of the movable centering core 4 to adjust the position of the movable centering core 4, and further adjust the position of the center of the speed reducer 8. The pressing structure is adapted to press the speed reducer 8 after the adjusting structure adjusts the position of the movable centering core 4.

[0039] Specifically, as Figure 2 shown, the elastic structure includes: a slide plate 9, a first elastic member 11, a baffle 13, a support member 14, a connecting member 17 and a lever 15. The first elastic member 11 can be a compression spring.

[0040] The skateboard 9 is slidably connected to the main board 7, and the bottom surface of the skateboard 9 is adapted to contact the top surface of the reduction gearbox 8. The bottom end of the first elastic member 11 abuts against the top surface of the skateboard 9. The baffle 13 is fixedly arranged on the main board 7, and the bottom surface of the baffle 13 contacts the top end of the first elastic member 11. The support member 14 is fixedly arranged on the top surface of the baffle 13. After the bottom end of the connecting member 17 slides through the baffle 13 from the top surface of the baffle 13, it is fixedly connected to the skateboard 9; the top end of the connecting member 17 is located in the upper part of the baffle 13. The first end of the lever 15 is a free end, and the second end of the lever 15 is connected to the top end of the connecting member 17; the part between the two ends of the lever 15 is rotatably connected to the top end of the support member 14. The elastic structure has a first state in which after overcoming the elastic force of the first elastic member 11 and pressing down the free end of the lever 15, the skateboard 9 is driven to move upward, and the bearing chamber of the reduction gearbox 8 is placed on the movable centering core 4; and a second state in which after releasing the free end of the lever 15, the skateboard 9 is pressed against the top surface of the reduction gearbox 8 under the action of the elastic restoring force of the first elastic member 11. The connecting member 17 can be a rod provided with a thread at the lower part.

[0041] Further, as Figure 2 shown, the first elastic members 11 are two symmetrically arranged about the vertical center line of the reduction gearbox 8.

[0042] Further, as Figure 2 shown, a limiting portion is provided at the top end of the support member 14, and the second end of the lever 15 is slidably sleeved on the portion of the support member 14 between the limiting portion and the top surface of the baffle 13; and a second elastic member 18 is provided between the second end of the lever 15 and the top surface of the baffle 13; the elastic force of the second elastic member 18 is adapted to push the second end of the lever 15 to abut against the limiting portion. The second elastic member 18 can be a compression spring.

[0043] Further, as Figure 2 shown, a guiding slot is provided on the skateboard 9 in the vertical direction, and the first elastic member 11 is located in the guiding slot.

[0044] Specifically, as Figure 1 shown, the adjusting structure includes: an adjusting screw 1 and a set screw 2.

[0045] The adjusting screw 1 is screwed into the groove provided on the bottom surface of the main board 7 from the bottom surface of the main board 7 and is screwed onto the protrusion provided on the movable centering core 4; the protrusion extends into the groove, and a gap is provided between the protrusion and the groove. The set screw 2 is adapted to be screwed onto the main board 7 to abut against the adjusting screw 1 after the adjusting screw 1 is screwed to drive the movable centering core 4 to the target position.

[0046] Further, as Figure 1 shown, the outer end of the adjusting screw 1 is located in the first counterbore provided on the main board 7, and the outer end of the set screw 2 is located in the second counterbore provided on the main board 7.

[0047] Specifically, as Figure 2 shown, the pressing structure includes: two first pressing plates 10 and two second pressing plates 16.

[0048] The two first pressing plates 10 are respectively arranged near the left and right sides of the lower part of the reduction gearbox 8; the two second pressing plates 16 are respectively arranged near the left and right sides of the upper part of the reduction gearbox 8; the first pressing plate 10 and the second pressing plate 16 are adapted to be connected to the main board 7 through the pressing screw 5 after the adjusting structure adjusts the position of the movable centering core 4, so as to press and fix the reduction gearbox 8.

[0049] Further, as Figure 1 shown, when the pressing screw 5 passes through the protrusion and the groove, a counterbore is provided on the main board 7 corresponding to the groove and away from the reduction gearbox 8, the opening size of the counterbore is larger than the opening size of the groove, and a connecting plate 6 is fitted in the counterbore, and the pressing screw 5 is screwed into the connecting plate 6.

[0050] As Figure 1 shown, the side of the main board 7 away from the reduction gearbox 8 is adapted to be connected to the connecting flange 12 of the lathe spindle.

[0051] The working process principle of the reduction gearbox positioning tooling of the present application is briefly described as follows: First, press down the lever 15, place the reduction gearbox 8 on the movable centering core 4, and make the box support nail 3 stick firmly to the movable centering core 4; then release the lever 15, and under the action of the first elastic member 11, the slide plate 9 moves downward to perform gapless positioning on the reduction gearbox 8; then screw the adjusting screw 1 according to the drawing requirements to adjust the position of the movable centering core 4, and finally lock the pressing screw 5, and use the first pressing plate 10 and the second pressing plate 16 to press and fix the reduction gearbox 8, install the main board 7 on the connecting flange 12 of the lathe spindle, and start turning.

[0052] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations fall within the scope defined by the appended claims.

Claims

1. A reduction gearbox positioning tool, characterized in that: include: Main board (7); The movable centering core (4) is slidably connected to the main board (7); the bearing chamber provided in the reduction box (8) is suitable for being placed on the movable centering core (4); and the support pin (3) provided in the reduction box (8) is arranged in close contact with the movable centering core (4); An elastic structure, arranged on the main board (7), the elastic structure being suitable for elastically pressing the top surface of the reduction box (8); an adjustment structure, arranged on the main board (7), the adjustment structure being adapted to act on the bottom of the movable fixed core (4) to adjust the position of the movable fixed core (4), thereby adjusting the position of the center of the reduction box (8); The clamping structure is suitable for clamping the reduction box (8) after the adjustment structure has completed adjusting the position of the movable fixed core (4).

2. The reduction gearbox positioning tool according to claim 1, characterized in that: The elastic structure comprises: A slide plate (9) is slidably connected to the main plate (7), and the bottom surface of the slide plate (9) is suitable for contacting the top surface of the reduction box (8); A first elastic member (11), the bottom end of which abuts against the top surface of the slide plate (9); A baffle (13) is fixedly arranged on the main board (7), and the bottom surface of the baffle (13) is in contact with the top end of the first elastic member (11); A support member (14) is fixedly arranged on the top surface of the baffle (13); A connecting member (17), the bottom end of which slides from the top surface of the baffle (13) through the baffle (13) and is fixedly connected to the slide plate (9); the top end of the connecting member (17) is located on the upper part of the baffle (13); A lever (15), wherein the first end is a free end, and the second end of the lever (15) is connected to the top end of the connecting member (17); the portion between the two ends of the lever (15) is rotatably connected to the top end of the supporting member (14); The elastic structure has a first state in which, after overcoming the elastic force of the first elastic member (11) and pressing down the free end of the lever (15), the slide plate (9) is driven to move upward to place the bearing chamber of the reduction box (8) on the movable fixed core (4); and a second state in which, after releasing the free end of the lever (15), the slide plate (9) is pressed against the top surface of the reduction box (8) under the action of the elastic restoring force of the first elastic member (11).

3. The reduction gearbox positioning tool according to claim 2, characterized in that: The first elastic members (11) are two symmetrically arranged about the vertical center line of the reduction box (8).

4. The reduction gearbox positioning tool according to claim 2, characterized in that: A limiting portion is provided at the top end of the support member (14); the second end of the lever (15) is slidably sleeved on a portion of the support member (14) located between the limiting portion and the top surface of the baffle (13); and a second elastic member (18) is provided between the second end of the lever (15) and the top surface of the baffle (13); the elastic force of the second elastic member (18) is suitable for pushing the second end of the lever (15) against the limiting portion.

5. The reduction gearbox positioning tool according to claim 2, characterized in that: The slide plate (9) is provided with a guide slot arranged in a vertical direction, and the first elastic member (11) is located in the guide slot.

6. The reduction gearbox positioning tool according to any one of claims 1 to 5, characterized in that: The regulatory structure comprises: An adjusting screw (1) is screwed from the bottom surface of the main board (7) into a groove provided on the main board (7), and is screwed into a protrusion provided on the movable fixed core (4); the protrusion extends into the groove, and a gap is provided between the protrusion and the groove; The set screw (2) is suitable for being screwed into the main board (7) to tighten the adjusting screw (1) after the adjusting screw (1) is screwed and the movable fixed core (4) is adjusted to a target position.

7. The reduction gearbox positioning tool according to claim 6, characterized in that: The outer end of the adjusting screw (1) is located in a first countersunk hole provided on the main board (7), and the outer end of the fixing screw (2) is located in a second countersunk hole provided on the main board (7).

8. The reduction gearbox positioning tool according to claim 6, characterized in that: The compression structure comprises: Two first pressing plates (10) are respectively arranged near the left and right sides of the lower part of the reduction box (8); Two second pressing plates (16) are respectively arranged near the left and right sides of the upper part of the reduction box (8); The first pressing plate (10) and the second pressing plate (16) are suitable for connecting the main plate (7) via the clamping screws (5) to clamp and fix the reduction gearbox (8) after the adjustment structure has adjusted the position of the movable fixed core (4).

9. The reduction gearbox positioning tool according to claim 8, characterized in that: When the clamping screw (5) passes through the protrusion and the groove, a recessed groove is provided on the main board (7) corresponding to the groove and away from the reduction box (8), the opening size of the recessed groove is larger than the opening size of the groove, and a connecting plate (6) is provided in the recessed groove, and the clamping screw (5) is screwed into the connecting plate (6).

10. The reduction gearbox positioning tool according to any one of claims 1 to 5, characterized in that: The side of the main board (7) away from the reduction box (8) is suitable for connection with a connection flange (12) of a lathe spindle.

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