Gear machining clamping mechanism

Abstract

The utility model relates to the technical field of gear machining, and discloses a gear machining clamping mechanism which comprises a bottom plate, a support is fixedly connected to the upper surface of the bottom plate, and four vertical grooves arranged at equal intervals are formed in the support. According to the gear machining clamping mechanism, when the gear disc rotates, the sliding block is driven to move with the vertical groove as a track under the action of the vertical groove, the inclined groove and the sliding rod, the positioning plate, the positioning teeth and the supporting table are promoted to be synchronously folded and unfolded, and then the gear can be flexibly selected to be positioned and clamped from the inner wall or the outer wall of the gear according to needs; the gear disc can be meshed with the tooth structure of the gear for positioning in the positioning process, damage to teeth is avoided, the overall flexibility and practicability of the positioning and clamping mechanism are improved, a motor, a worm, a worm wheel, a rotating shaft and a driving gear are arranged to provide rotating power for the gear disc, and the positioning and clamping efficiency is improved. Automatic rotation of the gear disc can be avoided by means of the self-locking characteristic of the worm gear and the worm, and then the stability of the gear in the positioning and clamping process is improved.

Description

Technical Field

[0001] This utility model relates to the field of gear processing technology, specifically a gear processing clamping mechanism. Background Technology

[0002] A gear is a mechanical transmission element whose core feature is that it achieves continuous power transmission and motion control through the meshing of teeth on its rim. Gear manufacturing requires the use of clamping tools for clamping and positioning.

[0003] An existing patent (publication number: CN218224962U) discloses a gear processing clamping device. The key technical features include a housing with a clamping device installed inside. This clamping device comprises a support plate, two linkage gears, and two half-gears. The support plate is fixedly connected to the interior of the housing. Activating a cylinder causes its output end to extend, driving a rack and its first clamping block and extension rod to slide. This causes the two linkage gears meshing with both sides of the rack to rotate, thereby driving the two half-gears and their clamping rods and second clamping blocks to rotate. This achieves the effect of clamping the gear to be processed by the first clamping block and the two second clamping blocks. This solves the problems of insufficient compactness, the need for separate adjustment of each clamping block, instability, easy shaking, and low accuracy.

[0004] The aforementioned gear clamping device can only position and clamp the gear from the outside during use. It cannot position the gear from the inside as needed, and it is also inconvenient to clamp and position the gear teeth. It is also easy to damage the teeth. It has low flexibility and practicality, and there is room for improvement. Utility Model Content

[0005] In view of the shortcomings of the prior art, the present invention provides a gear processing clamping mechanism, which has the advantages of being able to select the inner wall or outer wall of the gear for positioning and clamping as needed, and being able to mesh with the tooth structure of the gear during the positioning process to avoid damage to the teeth, thus solving the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gear processing clamping mechanism, comprising a base plate, a bracket fixedly connected to the upper surface of the base plate, four equidistant vertical grooves inside the bracket, a slider slidably connected inside each vertical groove, a gear disk rotatably connected to the inner top wall of the bracket, four equidistant inclined grooves inside the gear disk, a slide rod slidably connected inside each inclined groove, the upper surface of the slide rod being fixedly connected to the bottom surface of the slider, a rotating shaft rotatably connected inside the base plate, a driving gear fixedly connected to the outer circumferential surface of the rotating shaft, the gear disk meshing with the driving gear, a worm gear fixedly connected to the outer circumferential surface of the rotating shaft, and a worm rotatably connected inside the bracket, the worm meshing with the worm wheel.

[0007] Each slider has a positioning plate fixedly connected to its upper surface, and the outer surface of the positioning plate has symmetrically arranged positioning teeth fixedly connected to it. The upper surface of the positioning teeth is fixedly connected to a support platform.

[0008] The above scheme utilizes the rotation of the gear disc to drive the slider to move along the vertical groove as a track under the action of the vertical groove, the inclined groove, and the slide rod. This causes the positioning plate, positioning teeth, and support platform to move synchronously. As a result, the gear can be flexibly positioned and clamped from the inner or outer wall of the gear as needed. It can also engage with the gear teeth during the positioning process to avoid damage to the teeth and improve the overall flexibility and practicality of the positioning and clamping mechanism.

[0009] Furthermore, a motor is fixedly connected to one side of the bracket, and the output end of the motor is fixedly connected to one end of the worm gear.

[0010] The above solution uses a motor to drive the worm gear to rotate, which in turn enables the gear disk to rotate automatically. This, in turn, drives the slider and positioning plate to move synchronously, improving clamping efficiency, reducing manual intervention, lowering the labor intensity of operators, and enhancing the level of production automation.

[0011] Furthermore, two limiting blocks are fixedly connected to the outer surface of each slider, and two sliding grooves are formed on the inner wall of each vertical groove. The limiting blocks are slidably connected to the bracket through the sliding grooves.

[0012] The above scheme restricts the movement direction of the slider by the cooperation of the limiting block and the slide groove, so that it can only slide along the vertical groove, avoiding the slider from deviating or tilting, and also preventing the slider from easily falling out of the vertical groove, thus ensuring the stability of the clamping mechanism.

[0013] Furthermore, a support ring is fixedly connected to the upper surface of the base plate, and a limiting groove is formed on the bottom surface of the gear disk. The gear disk is rotatably connected to the top of the support ring through the limiting groove.

[0014] With the above scheme, the support ring provides bottom support for the gear disk, and the cooperation between the limiting groove and the support ring limits the gear disk, preventing the gear disk from shifting or shaking during rotation, and ensuring the smooth operation of the gear disk.

[0015] Furthermore, the outer surface of the positioning plate is fixedly connected with symmetrically arranged first rubber pads, and each tooth end of the positioning tooth is fixedly connected with a second rubber pad that matches the tooth.

[0016] Through the above solution, the rubber pad can buffer the clamping force of the positioning plate and positioning teeth on the gear workpiece, avoiding scratches or deformation of the workpiece surface caused by hard contact. At the same time, the rubber pad also increases the friction between the rubber pad and the gear workpiece, preventing the workpiece from sliding or displacing during processing and improving the reliability of clamping.

[0017] Furthermore, the positioning plate, positioning teeth, and support platform are integrally formed.

[0018] The above solution eliminates the gaps between components through the one-piece molding design, improves the strength and rigidity of the overall structure, and can withstand greater clamping force without deformation.

[0019] Furthermore, two limiting rings are fixedly sleeved on the outer circumferential surface of the rotating shaft, and the side of the limiting rings closest to the base plate contacts the outer surface of the base plate respectively.

[0020] Through the above scheme, the limiting ring restricts the axial movement of the shaft, prevents the shaft from axially moving during rotation, and ensures the meshing stability between the gear disk and the driving gear.

[0021] Furthermore, the base plate has equidistantly arranged positioning holes inside, which are symmetrically located at both ends of the base plate.

[0022] The above solution provides a fixing point for the clamping mechanism to be installed on the machine tool or workbench, making it easy to firmly fix the base plate with bolts or other fasteners, thus ensuring the stability of the equipment.

[0023] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0024] This gear machining clamping mechanism uses the rotation of the gear disc to drive the slider to move along the vertical groove as a track under the action of the vertical groove, inclined groove, and sliding rod. This causes the positioning plate, positioning teeth, and support platform to move synchronously. Thus, it can flexibly choose to position and clamp the gear from the inner or outer wall as needed. It can also engage with the gear teeth during the positioning process to avoid damage to the teeth, improving the overall flexibility and practicality of the positioning and clamping mechanism. By setting up a motor, worm, worm wheel, rotating shaft, and driving gear to provide rotational power to the gear disc, the self-locking characteristics of the worm wheel and worm gear can prevent the gear disc from rotating automatically, thereby improving the stability of the gear positioning and clamping process. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0026] Figure 2 This is a front view of the overall structure of this utility model;

[0027] Figure 3 This is a structural diagram of the gear disk of this utility model;

[0028] Figure 4 This is a structural diagram of the bracket of this utility model;

[0029] Figure 5 This is a structural diagram of the slider of this utility model;

[0030] Figure 6 This is a structural diagram of the rotating shaft of this utility model.

[0031] In the picture:

[0032] 1. Base plate; 2. Bracket; 3. Vertical groove; 4. Slider; 5. Gear disk; 6. Inclined groove; 7. Slide rod; 8. Rotating shaft; 9. Drive gear; 10. Worm gear; 11. Worm; 12. Motor; 13. Positioning plate; 14. Positioning teeth; 15. Support platform; 16. Limiting block; 17. Slide groove; 18. Support ring; 19. Limiting groove; 20. First rubber pad; 21. Second rubber pad; 22. Limiting ring; 23. Positioning hole. Detailed Implementation

[0033] 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.

[0034] Please see Figure 1 , Figure 3 and Figure 4 A gear processing clamping mechanism in this embodiment includes a base plate 1. A bracket 2 is fixedly connected to the upper surface of the base plate 1. The bracket 2 has four equidistantly arranged vertical grooves 3 inside. A slider 4 is slidably connected inside each vertical groove 3. A gear disk 5 is rotatably connected to the inner top wall of the bracket 2. The gear disk 5 has four equidistantly arranged inclined grooves 6 inside. A slide rod 7 is slidably connected inside each inclined groove 6. The upper surface of the slide rod 7 is fixedly connected to the bottom surface of the slider 4. A rotating shaft 8 is rotatably connected inside the base plate 1. A driving gear 9 is fixedly connected to the outer circumferential surface of the rotating shaft 8. The gear disk 5 meshes with the driving gear 9. A worm gear 10 is fixedly connected to the outer circumferential surface of the rotating shaft 8. A worm 11 is rotatably connected inside the bracket 2. The worm 11 meshes with the worm gear 10.

[0035] Please see Figure 1 , Figure 4 and Figure 5 Each slider 4 has a positioning plate 13 fixedly connected to its upper surface. The outer surface of the positioning plate 13 is fixedly connected to symmetrically arranged positioning teeth 14. The upper surface of the positioning teeth 14 is fixedly connected to a support platform 15.

[0036] Please see Figure 1 , Figure 2 and Figure 3 A motor 12 is fixedly connected to one side of the bracket 2. The output end of the motor 12 is fixedly connected to one end of the worm gear 11. The motor 12 drives the worm gear 11 to rotate, thereby realizing the automatic rotation of the gear disk 5, which in turn drives the slider 4 and the positioning plate 13 to move synchronously, improving clamping efficiency, reducing manual intervention, reducing the labor intensity of operators, and improving the level of production automation.

[0037] Please see Figure 4 and Figure 5 Two limiting blocks 16 are fixedly connected to the outer surface of each slider 4, and two sliding grooves 17 are opened on the inner wall of each vertical groove 3. The limiting blocks 16 are slidably connected to the bracket 2 through the sliding grooves 17. The cooperation between the limiting blocks 16 and the sliding grooves 17 restricts the movement direction of the slider 4, so that it can only slide along the vertical groove 3, avoiding the slider 4 from shifting or tilting, and also preventing the slider 4 from easily falling out of the vertical groove 3, thus ensuring the stability of the clamping mechanism.

[0038] Please see Figure 2 , Figure 3 and Figure 4 A support ring 18 is fixedly connected to the upper surface of the base plate 1. A limiting groove 19 is opened on the bottom surface of the gear disk 5. The gear disk 5 is rotatably connected to the top of the support ring 18 through the limiting groove 19. The support ring 18 provides bottom support for the gear disk 5. The cooperation between the limiting groove 19 and the support ring 18 limits the gear disk 5 to prevent the gear disk 5 from shifting or shaking during rotation, thus ensuring the smooth operation of the gear disk 5.

[0039] Please see Figure 1 and Figure 5 The outer surface of the positioning plate 13 is fixedly connected with symmetrically arranged first rubber pads 20, and the tooth end of each positioning tooth 14 is fixedly connected with a second rubber pad 21 that matches the tooth. The rubber pads can buffer the clamping force of the positioning plate 13 and the positioning tooth 14 on the gear workpiece, avoid scratches or deformation of the workpiece surface caused by hard contact, and at the same time, the rubber pads also increase the friction between the workpiece and the gear workpiece, prevent the workpiece from sliding or displacing during processing, and improve the reliability of clamping.

[0040] Please see Figure 5 The positioning plate 13, positioning teeth 14 and support platform 15 are integrally formed. The integral forming design eliminates the connection gaps between the parts, improves the strength and rigidity of the overall structure, and can withstand greater clamping force without deformation.

[0041] Please see Figure 1 , Figure 2 and Figure 6 Two limiting rings 22 are fixedly sleeved on the outer circumferential surface of the rotating shaft 8. The side of the limiting rings 22 closest to the base plate 1 contacts the outer surface of the base plate 1 respectively. The limiting rings 22 restrict the axial movement of the rotating shaft 8, prevent the rotating shaft 8 from axially moving during rotation, and ensure the meshing stability between the gear disk 5 and the drive gear 9.

[0042] Please see Figure 1 The base plate 1 has equidistantly arranged positioning holes 23 inside. The positioning holes 23 are symmetrically arranged at both ends of the base plate 1. The positioning holes 23 provide fixing points for the clamping mechanism to be installed on the machine tool or workbench, so as to make it easy to firmly fix the base plate 1 with bolts or other fasteners and ensure the stability of the equipment.

[0043] In this embodiment, a gear processing clamping mechanism is provided. When the gear disk 5 rotates, it drives the slider 4 to move along the vertical groove 3 as a track under the action of the vertical groove 3, the inclined groove 6, and the slide rod 7. This causes the positioning plate 13, the positioning teeth 14, and the support platform 15 to move synchronously. As needed, the gear can be flexibly positioned and clamped from the inner or outer wall of the gear. It can also engage with the gear teeth during the positioning process to avoid damage to the teeth, thus improving the overall flexibility and practicality of the positioning and clamping mechanism. By setting the motor 12, worm 11, worm wheel 10, rotating shaft 8, and driving gear 9 to provide rotational power to the gear disk 5, the self-locking characteristics of the worm wheel and worm gear can prevent the gear disk 5 from rotating automatically, thereby improving the stability of the gear positioning and clamping process.

[0044] It should be noted that motor 12 is a servo motor.

[0045] The working principle of the above embodiments is as follows:

[0046] The gear processing clamping mechanism is driven by motor 12 to rotate worm 11. Power is transmitted to drive gear 9 via worm wheel 10 and rotating shaft 8. Drive gear 9 drives gear disk 5 to rotate. The inclined groove 6 inside gear disk 5 cooperates with slide rod 7 to convert the rotational motion into linear movement of slider 4 in vertical groove 3, realizing the synchronous expansion and contraction of positioning plate 13, positioning teeth 14 and support table 15. By moving slider 4 inward and outward, the inner wall clamping (outward expansion) and outer wall clamping (inward contraction) modes can be flexibly switched. When the outer or inner wall of the gear to be positioned is smooth... When the arc-shaped structure is used, the gear can be placed on the support platform 15, and then the gear can be positioned by the inner or outer side of the positioning plate 13. When the outer or inner wall of the gear to be positioned is a tooth structure, the gear can be placed on the upper surface of the bracket 2, and positioned by the meshing of the positioning teeth 14 with the tooth groove of the gear, so as to achieve tooth positioning without damage. The entire process prevents rotation by the self-locking characteristic of the worm gear. Combined with the limit block 16, support ring 18 and limit ring 22, the stable movement of the slider 4 and gear disk 5 is ensured, so as to complete the clamping and positioning of the gear efficiently and stably.

[0047] 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.

[0048] 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 gear processing clamping mechanism, comprising a base plate (1), characterized in that: A bracket (2) is fixedly connected to the upper surface of the base plate (1). The bracket (2) has four vertical grooves (3) arranged at equal intervals inside. A slider (4) is slidably connected inside each vertical groove (3). A gear disk (5) is rotatably connected to the inner top wall of the bracket (2). The gear disk (5) has four inclined grooves (6) arranged at equal intervals inside. A slide rod (7) is slidably connected inside each inclined groove (6). The upper surface of the slide rod (7) is fixedly connected to the bottom surface of the slider (4). A rotating shaft (8) is rotatably connected inside the base plate (1). A drive gear (9) is fixedly connected to the outer circumference of the rotating shaft (8). The gear disk (5) meshes with the drive gear (9). A worm wheel (10) is fixedly connected to the outer circumference of the rotating shaft (8). A worm (11) is rotatably connected inside the bracket (2). The worm (11) meshes with the worm wheel (10). Each slider (4) has a positioning plate (13) fixedly connected to its upper surface. The outer surface of the positioning plate (13) is fixedly connected with symmetrically arranged positioning teeth (14). The upper surface of the positioning teeth (14) is fixedly connected with a support platform (15).

2. The gear processing clamping mechanism according to claim 1, characterized in that: A motor (12) is fixedly connected to one side of the bracket (2), and the output end of the motor (12) is fixedly connected to one end of the worm (11).

3. The gear processing clamping mechanism according to claim 1, characterized in that: Two limiting blocks (16) are fixedly connected to the outer surface of each slider (4), and two sliding grooves (17) are opened on the inner wall of each vertical groove (3). The limiting blocks (16) are slidably connected to the bracket (2) through the sliding grooves (17).

4. The gear processing clamping mechanism according to claim 1, characterized in that: A support ring (18) is fixedly connected to the upper surface of the base plate (1), and a limiting groove (19) is opened on the bottom surface of the gear disk (5). The gear disk (5) is rotatably connected to the top of the support ring (18) through the limiting groove (19).

5. The gear processing clamping mechanism according to claim 1, characterized in that: The outer surface of the positioning plate (13) is fixedly connected with symmetrically arranged first rubber pads (20), and each positioning tooth (14) is fixedly connected with a second rubber pad (21) that is compatible with the tooth.

6. The gear processing clamping mechanism according to claim 1, characterized in that: The positioning plate (13), positioning teeth (14) and support platform (15) are integrally formed.

7. The gear processing clamping mechanism according to claim 1, characterized in that: Two limiting rings (22) are fixedly sleeved on the outer circumference of the rotating shaft (8). The side of the limiting ring (22) closest to the base plate (1) is in contact with the outer surface of the base plate (1).

8. The gear processing clamping mechanism according to claim 1, characterized in that: The base plate (1) has equidistantly arranged positioning holes (23) inside, and the positioning holes (23) are symmetrically arranged at both ends of the base plate (1).

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