Positioning tool for machining arc teeth

Abstract

The utility model relates to a positioning tool for machining arc teeth, which belongs to the technical field of positioning tools and comprises a base and a first fixing block, an adjusting mechanism is arranged on the upper surface of the base, a fixing mechanism is arranged on the upper surface of the first fixing block, and the adjusting mechanism comprises first U-shaped frames fixed on the front side and the rear side of the upper surface of the base. Second fixing blocks are slidably connected to the outer sides of the first U-shaped frames on the front side and the rear side, the outer sides of output shafts of the first electric push rods are fixedly connected with the right sides of the second fixing blocks, and limiting sliding grooves are formed in the upper surface of the base. According to the positioning tool for machining the spiral bevel gear, through the synergistic effect of the first electric push rod and the second electric push rod, the position of the spiral bevel gear can be adjusted in the left-right direction and the front-back direction, the complex machining requirement is met, the machining precision is improved, errors in the moving process can be reduced through the high-precision sliding rail and the high-precision guide mechanism, and the machining precision is improved. And further, the machining precision and efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically to a positioning tooling for machining arc teeth. Background Technology

[0002] Spiral bevel gears are important components in mechanical transmission. Their tooth profile is arc-shaped, unlike ordinary straight bevel gears. Spiral bevel gears are usually used in high-speed, high-precision transmission systems, such as in aviation, aerospace, automotive and machine tool fields. Currently, the spiral teeth can be clamped and fixed by positioning fixtures for machining.

[0003] For example, CN221159375U discloses a positioning fixture for arc-tooth bevel gears, relating to the field of mechanical manufacturing technology. It includes a base (containing paired toothed protrusions), an annular pressure plate, and double-ended studs, wherein the base and pressure plate are separable. Three evenly distributed toothed protrusions on the uppermost inner hole of the base engage with the tooth grooves of the large arc-tooth bevel gear to be processed, for radial positioning. The pressure plate has a ring-like structure, with its inner hole engaging with the back conical surface of the large arc-tooth bevel gear to be processed, for axial positioning. Double-ended studs connect the base and pressure plate. The base is fixed to the machine tool transition plate by bolts. The large arc-tooth bevel gear to be processed is placed in the base, allowing it to engage with the toothed protrusions. The double-ended studs connect the base and pressure plate, pressing the back conical surface of the large arc-tooth bevel gear to be processed, thus completing the pre-processing work, and enabling the processing of the large end face and inner hole of the large arc-tooth bevel gear.

[0004] Although the aforementioned patent can process the large end face and inner hole of the large wheel of the spiral bevel gear, the prior art of this patent, after clamping and fixing the spiral bevel gear, makes it inconvenient to adjust the processing position of the spiral bevel gear, thus making it difficult to meet complex processing requirements and reducing its practicality. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a machining arc tooth positioning fixture, which has the advantages of facilitating the adjustment of the machining position of the arc bevel gear to meet complex machining requirements. This solves the problem in existing technologies where clamping and fixing the arc bevel gear makes it difficult to adjust the machining position of the arc bevel gear, thus hindering the fulfillment of complex machining requirements and reducing its practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A machining arc tooth positioning fixture includes a base and a first fixing block. The upper surface of the base is provided with an adjustment mechanism, and the upper surface of the first fixing block is provided with a fixing mechanism.

[0008] The adjustment mechanism includes a first U-shaped frame fixed on the front and rear sides of the upper surface of the base. A second fixing block is slidably connected to the outer side of the first U-shaped frame on the front and rear sides. A first electric push rod is fixed on the right side of the upper surface of the base. The outer side of the output shaft of the first electric push rod is fixedly connected to the right side of the second fixing block. A limiting groove is formed on the upper surface of the base. A slider is slidably connected inside the limiting groove. The upper surface of the slider is fixedly connected to the lower surface of the second fixing block. A second U-shaped frame is fixed on both the left and right sides of the upper surface of the second fixing block. The first fixing block is slidably connected to the outer side of the second U-shaped frame on the left and right sides. A second electric push rod is fixed on the front side of the upper surface of the second fixing block. The output shaft of the second electric push rod is fixedly connected to the front of the first fixing block.

[0009] Furthermore, the slider moves linearly left and right inside the limiting groove.

[0010] Furthermore, the first U-shaped frame is symmetrically distributed on both sides of the horizontal central axis of the base.

[0011] Furthermore, the fixing mechanism includes a mounting groove formed on the upper surface of the first fixing block, a motor is fixed to the bottom wall of the inner cavity of the mounting groove, a support frame is fixed to the upper surface of the first fixing block, and a rotating rod is rotatably connected inside the support frame via a bearing, the bottom end of the rotating rod being fixedly connected to the outer side of the motor output shaft.

[0012] Furthermore, the fixing mechanism also includes a rotating disk fixed to the top of the rotating rod. The left and right sides of the upper surface of the rotating disk are fixed with third electric push rods through fixing platforms, and arc-shaped clamps are fixed to the outer sides of the output shafts of the third electric push rods on both sides.

[0013] Furthermore, anti-slip rubber layers are fixed on the opposite sides of the arc-shaped clamps on both the left and right sides.

[0014] Furthermore, the fixing mechanism also includes a set of supporting pulleys fixed on the left and right sides of the lower surface of the rotating disk. The set of supporting pulleys includes a support rod, and the bottom end of the support rod is rotatably connected to a sliding wheel.

[0015] Furthermore, mounting holes are provided at all four corners of the upper surface of the base.

[0016] Compared with the prior art, this utility model provides a positioning fixture for machining arc teeth, which has the following beneficial effects:

[0017] 1. This machining arc tooth positioning fixture, through the coordinated action of the first and second electric push rods, can adjust the position of the arc bevel gear in both left and right and front and back directions to meet complex machining requirements and improve machining accuracy. Through high-precision slide rails and guide mechanisms, errors during the movement process can be reduced, thereby improving machining accuracy and efficiency.

[0018] 2. This machining arc tooth positioning fixture, through the cooperation of an electric push rod and an arc-shaped clamping plate, can achieve high-precision clamping, ensuring that the gear will not loosen during machining. The arc design of the clamping plate can better adapt to the shape of the gear, improving clamping stability. The motor-driven rotating disk can realize the rotation of the gear, thereby adjusting the machining angle, which can meet the machining requirements of arc bevel gears at different angles, improve machining flexibility, reduce manual intervention, and improve machining efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the connection structure between the first U-shaped frame and the base of this utility model;

[0022] Figure 4 This is a schematic diagram of the fixing mechanism of this utility model.

[0023] In the diagram: 1. Base, 2. First fixing block, 3. Adjustment mechanism, 301. First U-shaped frame, 302. Second fixing block, 303. First electric push rod, 304. Limiting slide groove, 305. Slider, 306. Second U-shaped frame, 307. Second electric push rod, 4. Fixing mechanism, 401. Mounting groove, 402. Motor, 403. Support frame, 404. Rotating rod, 405. Rotating disk, 406. Third electric push rod, 407. Arc-shaped clamp, 408. Support pulley block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1 The machining arc tooth positioning fixture in this embodiment includes a base 1 and a first fixing block 2. The upper surface of the base 1 is provided with an adjustment mechanism 3, and the upper surface of the first fixing block 2 is provided with a fixing mechanism 4.

[0026] In this embodiment, mounting holes are provided at all four corners of the upper surface of the base 1.

[0027] It should be noted that the base 1 can be fixed in the position where it needs to be fixed through the mounting holes.

[0028] Please see Figures 2 to 3 In this embodiment, the adjustment mechanism 3 includes a first U-shaped frame 301 fixed on the front and rear sides of the upper surface of the base 1. A second fixing block 302 is slidably connected to the outer side of the first U-shaped frame 301 on the front and rear sides. A first electric push rod 303 is fixed on the right side of the upper surface of the base 1. The outer side of the output shaft of the first electric push rod 303 is fixedly connected to the right side of the second fixing block 302. A limiting groove 304 is formed on the upper surface of the base 1. A slider 305 is slidably connected inside the limiting groove 304. The upper surface of the slider 305 is fixedly connected to the lower surface of the second fixing block 302. A second U-shaped frame 306 is fixed on both the left and right sides of the upper surface of the second fixing block 302. A first fixing block 2 is slidably connected to the outer side of the second U-shaped frame 306 on the left and right sides. A second electric push rod 307 is fixed on the front side of the upper surface of the second fixing block 302. The output shaft of the second electric push rod 307 is fixedly connected to the front side of the first fixing block 2.

[0029] Specifically, the slider 305 moves linearly left and right inside the limiting groove 304, the first U-shaped frame 301 on the front and rear sides is symmetrically distributed on the front and rear sides of the transverse central axis of the base 1, and the lower surface of the second fixing block 302 is in contact with the upper surface of the base 1.

[0030] It should be noted that during processing, the first electric push rod 303 can be activated, which can drive the second fixed block 302 to move left and right, thereby adjusting the processing position of the clamped spiral bevel gear on the left and right sides. By activating the second electric push rod 307, the first fixed block 2 can be moved back and forth, thereby adjusting the processing position of the clamped spiral bevel gear on the back and forth sides, so as to carry out processing, improve processing efficiency, meet complex processing requirements, and improve processing accuracy.

[0031] Please see Figure 4 In this embodiment, the fixing mechanism 4 includes a mounting groove 401 formed on the upper surface of the first fixing block 2. A motor 402 is fixed to the bottom wall of the inner cavity of the mounting groove 401. A support frame 403 is fixed to the upper surface of the first fixing block 2. A rotating rod 404 is rotatably connected to the inside of the support frame 403 through a bearing. The bottom end of the rotating rod 404 is fixedly connected to the outer side of the output shaft of the motor 402.

[0032] Specifically, the fixing mechanism 4 also includes a rotating disk 405 fixed to the top of the rotating rod 404. The left and right sides of the upper surface of the rotating disk 405 are fixed with third electric push rods 406 via fixing platforms. The outer sides of the output shafts of the third electric push rods 406 on the left and right sides are fixed with arc-shaped clamps 407. The opposite side of the arc-shaped clamps 407 on the left and right sides is fixed with an anti-slip rubber layer. The fixing mechanism 4 also includes a support pulley group 408 fixed to the left and right sides of the lower surface of the rotating disk 405. The support pulley group 408 includes a support rod. The bottom end of the support rod is rotatably connected to a sliding wheel. The bottom end of the sliding wheel is in contact with the upper surface of the second fixing block 302.

[0033] It should be noted that the spiral bevel gear to be processed can be placed on the upper surface of the rotating disk 405, between the opposite sides of the left and right arc-shaped clamping plates 407. Then, by simultaneously activating the third electric push rods 406 on both sides, the arc-shaped clamping plates 407 on both sides are driven to move synchronously in opposite directions. The spiral bevel gear can then be clamped and fixed at the center of the upper surface of the rotating disk 405. The clamped spiral bevel gear can then be processed by the processing equipment. During processing, the motor 402 can be started, and the output shaft of the motor 402 drives the rotating rod 404 and the rotating disk 405 to rotate, thereby adjusting the processing angle of the clamped spiral bevel gear.

[0034] The working principle of the above embodiments is as follows:

[0035] In use, the spiral bevel gear to be processed can be placed on the upper surface of the rotating disk 405, between the opposite sides of the left and right arc-shaped clamping plates 407. Then, by simultaneously activating the third electric push rods 406 on both sides, the arc-shaped clamping plates 407 on both sides are moved synchronously in opposite directions, thus clamping and fixing the spiral bevel gear at the center of the upper surface of the rotating disk 405. The clamped spiral bevel gear can then be processed by the processing equipment. During processing, the motor 402 can be started, and the output shaft of the motor 402 drives the rotating rod 404 and the rotating disk 405 to rotate, thereby adjusting the processing angle of the clamped spiral bevel gear. During processing, the first electric push rod 303 can be started, which can move the second fixing block 302 left and right, thereby adjusting the processing position of the clamped spiral bevel gear on both sides. By activating the second electric push rod 307, the first fixing block 2 can be moved forward and backward, thereby adjusting the processing position of the clamped spiral bevel gear on both sides to facilitate processing and improve processing efficiency.

[0036] It should be noted that the orientations or positional relationships indicated herein are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the purpose of facilitating the description of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A processing arc tooth positioning tool, comprising a base (1) and a first fixed block (2), characterized in that: The upper surface of the base (1) is provided with an adjusting mechanism (3), and the upper surface of the first fixed block (2) is provided with a fixing mechanism (4); The adjusting mechanism (3) comprises first U-shaped frames (301) fixed on the front and rear sides of the upper surface of the base (1), and the outer sides of the first U-shaped frames (301) on the front and rear sides are slidably connected with second fixed blocks (302); a first electric push rod (303) is fixed on the right side of the upper surface of the base (1), and the outer side of the output shaft of the first electric push rod (303) is fixedly connected with the right side of the second fixed block (302); a limiting sliding groove (304) is formed in the upper surface of the base (1), and a sliding block (305) is slidably connected in the limiting sliding groove (304); the upper surface of the sliding block (305) is fixedly connected with the lower surface of the second fixed block (302); second U-shaped frames (306) are fixed on the left and right sides of the upper surface of the second fixed block (302), and the first fixed block (2) is slidably connected with the outer sides of the second U-shaped frames (306) on the left and right sides; and a second electric push rod (307) is fixed on the front side of the upper surface of the second fixed block (302), and the output shaft of the second electric push rod (307) is fixedly connected with the front surface of the first fixed block (2).

2. The machining of the arc tooth positioning fixture according to claim 1, characterized in that: The sliding block (305) moves linearly in the limiting sliding groove (304).

3. The machining of the arc tooth positioning tooling according to claim 1, characterized in that: The first U-shaped frames (301) on the front and rear sides are symmetrically distributed on the front and rear sides of the transverse central axis of the base (1).

4. The machining of the arc tooth positioning tooling according to claim 1, characterized in that: The fixing mechanism (4) comprises a mounting groove (401) formed in the upper surface of the first fixed block (2), a motor (402) fixed to the bottom wall in the inner cavity of the mounting groove (401), a support frame (403) fixed to the upper surface of the first fixed block (2), and a rotating rod (404) rotatably connected to the inner portion of the support frame (403) through a bearing, wherein the bottom end of the rotating rod (404) is fixedly connected with the outer side of the output shaft of the motor (402).

5. The machining of the arc tooth positioning tooling according to claim 4, characterized in that: The fixing mechanism (4) further comprises a rotating disc (405) fixed to the top end of the rotating rod (404), and third electric push rods (406) are fixed to the left and right sides of the upper surface of the rotating disc (405) through fixing tables, and arc-shaped clamping plates (407) are fixed to the outer sides of the output shafts of the third electric push rods (406) on the left and right sides.

6. The machining of the arc tooth positioning tooling according to claim 5, characterized in that: The opposite sides of the arc-shaped clamping plates (407) on the left and right sides are fixedly provided with anti-skid rubber layers.

7. The machining of the arc tooth positioning tooling apparatus as set forth in claim 4, wherein: The fixing mechanism (4) further comprises support pulley blocks (408) fixed to the left and right sides of the lower surface of the rotating disc (405), and the support pulley blocks (408) comprise support rods, and sliding wheels are rotatably connected to the bottom ends of the support rods.

8. The process spline positioning fixture of claim 1, wherein: Mounting holes are formed in the four corners of the upper surface of the base (1).

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