Adjustable positioning and clamping device for gear machining
Patent Information
- Application Number
- CN202522608926.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-12-09
AI Technical Summary
[0004]本实用新型提出一种齿轮加工用可调节定位夹紧装置，以解决现有技术中定心圆柱与卡爪之间的距离无法调节，不能根据齿轮直径的不同快速调整夹持范围，影响齿轮加工用定位夹紧装置夹持适应性和调节便捷度的问题
该齿轮加工用可调节定位夹紧装置通过设置有调节机构，能够在使用时，根据不同直径规格的齿轮，对定心圆柱与卡爪之间的距离进行精准调节，增加齿轮加工用定位夹紧装置中弹性膜片卡盘对齿轮的夹持固定范围，起到无需工作人员频繁拆装更换不同卡爪，提高齿轮加工用定位夹紧装置中弹性膜片卡盘夹持调节范围，增加齿轮加工用定位夹紧装置定位夹持适应性的作用。
Smart Images
Figure CN224895946U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a gear machining positioning and clamping device, specifically an adjustable positioning and clamping device for gear machining, belonging to the field of gear machining technology. Background Technology
[0002] In the field of gear machining, the proper application of fixtures is one of the key factors in ensuring machining quality and improving production efficiency. The purpose of using fixtures is to ensure the positioning of the workpiece in the fixture, so that it does not move or vibrate due to cutting forces, gravity or associated centrifugal forces, inertial forces and thermal stress during machining. The positioning and clamping device is an important and indispensable component of gear fixtures to complete the clamping function. Unless the various forces on the workpiece during the machining process will prevent it from leaving the position required for positioning, a clamping device must be provided.
[0003] Existing gear machining positioning and clamping devices typically use elastic diaphragm chucks to position and clamp gears in order to increase machining efficiency. However, during gear clamping, the jaws of the elastic diaphragm chuck are fixed by bolts, and the distance between the centering cylinder and the jaws cannot be adjusted. This results in a very limited clamping range for the gear, making it impossible to quickly adjust the clamping range according to different gear diameters. This affects the clamping adaptability and ease of adjustment of the gear machining positioning and clamping device. Therefore, this paper proposes an adjustable positioning and clamping device for gear machining. Utility Model Content
[0004] This utility model proposes an adjustable positioning and clamping device for gear processing to solve the problem that the distance between the centering cylinder and the jaws cannot be adjusted in the prior art, and the clamping range cannot be quickly adjusted according to different gear diameters, which affects the clamping adaptability and adjustment convenience of the positioning and clamping device for gear processing.
[0005] This utility model is achieved through the following technical solution: an adjustable positioning clamping device for gear processing, including a clamping body, an elastic diaphragm disk fixedly connected to one side of the clamping body, and an adjustment mechanism provided on the outside of the elastic diaphragm disk; The adjustment mechanism includes three fixed frames. One side of each fixed frame is fixedly connected to the left side of the elastic diaphragm disc. The other end of each fixed frame is provided with a pawl. An adjustment frame is slidably connected inside each pawl. A centering cylinder is fixedly connected to one end of each adjustment frame. A screw is rotatably connected inside each pawl. The outer surface of each screw is threaded to the inner wall of the adjustment frame. A worm gear is fixedly connected to one end of each screw. A protective cover is fixedly connected to one side of each pawl. A worm is rotatably connected inside each protective cover. Each worm meshes with a worm gear. The adjustment mechanism is equipped with a calibration component.
[0006] Each of the claws has four mounting bolts threaded inside, and the other end of each mounting bolt extends into the interior of the fixing frame. Each mounting bolt is threadedly connected to the fixing frame.
[0007] Two limiting rings are fixedly connected to the outer surface of each screw, and each limiting ring is rotatably connected to the interior of a chuck.
[0008] Each worm gear has a fastening spring fitted on its outer surface. One end of each fastening spring is fixedly connected to one side of the protective cover. The other end of each fastening spring is fixedly connected to a first toothed disc. Each first toothed disc is slidably connected to the outside of the worm gear. Each worm gear has a second toothed disc fixedly connected to its outer surface. One side of each second toothed disc meshes with one side of the first toothed disc.
[0009] The calibration assembly includes three racks. The right side of each rack is fixedly connected to the left side of a jaw. The left side of each rack is fixedly connected with equally spaced graduations. A sliding block is slidably connected inside each jaw. One side of each sliding block is fixedly connected to one side of an adjustment frame. A sliding rod is slidably connected inside each sliding block. One end of each sliding rod is fixedly connected to a conical block. Each conical block is engaged inside the rack. A return spring is sleeved on the outer surface of each sliding rod. One end of each return spring is fixedly connected to the inner wall of the sliding block, and the other end of each return spring is fixedly connected to one side of the conical block.
[0010] Each of the sliding blocks has a slidably connected positioning block inside, and the left side of each positioning block is fixedly connected to the right side of the conical block.
[0011] This utility model provides an adjustable positioning and clamping device for gear machining, which has the following advantages: This adjustable positioning and clamping device for gear processing, equipped with an adjustment mechanism, allows for precise adjustment of the distance between the centering cylinder and the jaws according to gears of different diameters. This increases the clamping and fixing range of the elastic diaphragm chuck in the gear processing positioning and clamping device, eliminating the need for frequent disassembly and replacement of different jaws by operators, thus improving the clamping adjustment range of the elastic diaphragm chuck and enhancing the positioning and clamping adaptability of the gear processing positioning and clamping device.
[0012] This adjustable positioning and clamping device for gear processing, equipped with a calibration component, can accurately position the adjustment data after the centering cylinder is adjusted, thereby ensuring the synchronization of the adjustment of the three centering cylinders and keeping the adjustment distance of the three centering cylinders consistent. This, in turn, ensures the stable clamping and positioning of the subsequent gears, achieving the effect of increasing the adjustment performance of the centering cylinder of the elastic diaphragm chuck in the positioning and clamping device for gear processing while ensuring the accuracy of the clamping and centering of the jaws and the centering cylinder gears. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the fixing frame structure of this utility model; Figure 3 This is a cross-sectional view of the claw and adjusting frame of this utility model; Figure 4 This is a schematic diagram of the worm gear and worm structure of this utility model; Figure 5 This is a cross-sectional view of the sliding block structure of this utility model.
[0014] Explanation of reference numerals in the attached figures Clamping body; Flexible film disc; 3. Adjustment mechanism; 301. Fixing frame; 302. Claw; 303. Adjustment frame; 304. Centering cylinder; 305. Screw; 306. Worm gear; 307. Protective cover; 308. Worm; 309. Mounting bolt; 310. Limit ring; 311. Fastening spring; 312. First gear plate; 313. Second gear plate; 4. Calibration components; 401. Rack; 402. Scale; 403. Sliding block; 404. Sliding rod; 405. Return spring; 406. Conical block; 407. Positioning block. Detailed Implementation
[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.
[0016] Please see Figures 1-5 This utility model provides an adjustable positioning clamping device for gear processing, including a clamping body 1, an elastic diaphragm disk 2 fixedly connected to one side of the clamping body 1, and an adjustment mechanism 3 provided on the outside of the elastic diaphragm disk 2; The adjustment mechanism 3 includes three fixed frames 301. One side of each fixed frame 301 is fixedly connected to the left side of the elastic diaphragm disc 2. The other end of each fixed frame 301 is provided with a claw 302. Each claw 302 has four mounting bolts 309 threaded inside. The other end of each mounting bolt 309 passes through the interior of the fixed frame 301. Each mounting bolt 309 is threadedly connected to the fixed frame 301. The mounting bolts 309 can fix the claw 302 on the fixed frame 301, ensuring the reliability and stability of the claw 302.
[0017] Please refer to this carefully. Figure 2 and Figure 3 Each claw 302 has an adjusting frame 303 slidably connected inside, and a centering cylinder 304 is fixedly connected to one end of each adjusting frame 303. Each claw 302 has a screw 305 rotatably connected inside, and the outer surface of each screw 305 is threaded to the inner wall of the adjusting frame 303. Two limiting rings 310 are fixedly connected to the outer surface of each screw 305. Each limiting ring 310 is rotatably connected to the inside of the claw 302. The limiting rings 310 can limit the position of the screw 305 inside the claw 302 without affecting the rotation of the screw 305, thus preventing the screw 305 from loosening.
[0018] Please refer to this carefully. Figure 3 and Figure 4 Each screw 305 has a worm gear 306 fixedly connected to one end, and a protective cover 307 fixedly connected to one side of each pawl 302. A worm 308 is rotatably connected inside each protective cover 307, and each worm 308 meshes with the worm gear 306. A fastening spring 311 is fitted onto the outer surface of each worm 308, with one end of each fastening spring 311 fixedly connected to one side of the protective cover 307. A first gear 312 is fixedly connected to the other end of each fastening spring 311, and each first gear 312 is slidably connected to the outside of the worm 308. A second gear 312 is fixedly connected to the outer surface of each worm 308. 313, one side of each second toothed disc 313 meshes with one side of the first toothed disc 312. When the worm 308 rotates, it can drive the second toothed disc 313 to rotate. When the second toothed disc 313 rotates, it can break the meshing with the first toothed disc 312, and at the same time, it causes the fastening spring 311 to contract, thus making a clicking sound during the rotation of the worm 308. After the worm 308 has finished rotating, the elastic force provided by the fastening spring 311, in conjunction with the protective cover 307, can push the first toothed disc 312 to mesh with the second toothed disc 313 again, preventing the worm 308 from rotating due to vibration and shaking, and increasing the stability of the worm 308 after rotation adjustment.
[0019] Please refer to this carefully. Figure 2 , Figure 3 and Figure 5 The adjustment mechanism 3 has a calibration component 4 inside. The calibration component 4 includes three racks 401. The right side of each rack 401 is fixedly connected to the left side of the jaw 302. The left side of each rack 401 is fixedly connected to equidistant scale marks 402. Each jaw 302 has a sliding block 403 slidably connected inside. One side of each sliding block 403 is fixedly connected to one side of the adjustment frame 303. Each sliding block 403 has a sliding rod 404 slidably connected inside. One end of each sliding rod 404 is fixedly connected to a cone. Each conical block 406 is engaged inside the rack 401. A return spring 405 is fitted onto the outer surface of each sliding rod 404. One end of each return spring 405 is fixedly connected to the inner wall of the sliding block 403, and the other end is fixedly connected to one side of the conical block 406. When the adjusting frame 303 moves the centering cylinder 304 up and down, it also moves the sliding block 403 inside the chuck 302. During the sliding process, the sliding block 403 can move the conical block 406 through the sliding rod 404. The cone 406 moves up and down, and by utilizing the cone shape of the cone block 406 to engage with the tooth groove of the rack 401, the return spring 405 is forced to contract and accumulate elastic force when the cone block 406 slides to the tip of the rack 401 tooth. When the cone block 406 slides to be parallel to the tooth groove of the rack 401, the return spring 405 can push the cone block 406 back into the tooth groove of the rack 401 to maintain engagement with the rack 401. Since the scale marks 402 are all located at the center of the tooth groove of the rack 401, each time the cone block 406 is engaged in the tooth groove of the rack 401, the operator... By reading the value of scale mark 402, the operator can determine the adjustment distance of the adjustment frame 303 and the centering cylinder 304 inside the chuck 302. By keeping the values of scale mark 402 pointed to by the three conical blocks 406 consistent, the adjustment synchronicity of the three centering cylinders 304 can be guaranteed, and the adjustment distance of the three centering cylinders 304 can be kept consistent. This ensures that the clamping and positioning of the subsequent gears remains stable, increases the adjustment performance of the elastic diaphragm chuck centering cylinder 304 in the gear machining positioning and clamping device, and ensures the gear clamping and centering accuracy of the centering cylinder 304.
[0020] Please refer to this carefully. Figure 5 Each sliding block 403 has a slidably connected positioning block 407 inside. The left side of each positioning block 407 is fixedly connected to the right side of the conical block 406. The positioning block 407 can position the conical block 406, prevent the conical block 406 from excessively shifting, and increase the movement stability of the conical block 406.
[0021] In use, the following steps are taken: First, the chuck 302 is installed on the fixed frame 301 using the mounting bolt 309. When it is necessary to clamp the gear, the gear to be processed is placed between the three fixed frames 301 through the retainer. Then, the elastic diaphragm disc 2 is connected to the push rod on the machine tool. At this time, the elastic diaphragm disc 2 is deformed by the push rod, so that the three fixed frames 301 drive the chuck 302 and the centering cylinder 304 to move closer to the center, thus completing the clamping and positioning of the gear. When it is necessary to clamp gears of different diameters and adjust the distance between the centering cylinder 304 and the jaw 302, simply rotate the worm 308 in conjunction with the protective cover 307 and the worm wheel 306 to drive the screw 305 to rotate. This will cause the centering cylinder 304 to move through the adjusting bracket 303, quickly changing the distance between the centering cylinder 304 and the jaw 302. This allows for precise adjustment of the distance between the centering cylinder 304 and the jaw 302 according to different gear diameters, increasing the clamping and fixing range of the elastic diaphragm chuck in the gear processing positioning and clamping device. It also eliminates the need for frequent disassembly and replacement of different jaws 302 by operators, improving the clamping adjustment range of the elastic diaphragm chuck in the gear processing positioning and clamping device and increasing the positioning and clamping adaptability of the gear processing positioning and clamping device. Furthermore, when the worm 308 rotates, it can drive the second gear 313 to rotate. When the second gear 313 rotates, it can break the meshing with the first gear 312, and at the same time, it causes the fastening spring 311 to contract, thus producing a clicking sound during the rotation of the worm 308. After the worm 308 has finished rotating, the elastic force provided by the fastening spring 311, in conjunction with the protective cover 307, can push the first gear 312 to mesh with the second gear 313 again, preventing the worm 308 from rotating due to vibration and shaking, and increasing the stability of the worm 308 after rotation adjustment. Finally, when the adjusting bracket 303 moves the centering cylinder 304 up and down, it also moves the sliding block 403 inside the chuck 302. During the sliding process, the sliding block 403 can move the conical block 406 up and down through the sliding rod 404. The conical shape of the conical block 406 engages with the tooth groove of the rack 401, forcing the return spring 405 to contract and accumulate elastic force when the conical block 406 slides to the tip of the rack 401. When the conical block 406 slides parallel to the tooth groove of the rack 401, the return spring 405 pushes the conical block 406 back into the tooth groove of the rack 401, maintaining engagement with the rack 401. Since the scale marks 402 are all located... The center position of the tooth groove of the rack 401 allows the operator to determine the adjustment distance of the adjusting frame 303 and the centering cylinder 304 inside the chuck 302 by reading the value of the scale mark 402 after the conical block 406 is inserted into the tooth groove of the rack 401. By keeping the values of the scale marks 402 pointed to by the three conical blocks 406 consistent, the adjustment synchronicity of the three centering cylinders 304 can be guaranteed, and the adjustment distance of the three centering cylinders 304 can be kept consistent. This ensures that the clamping and positioning of the subsequent gears remains stable, increases the adjustment performance of the elastic diaphragm chuck centering cylinder 304 in the gear machining positioning and clamping device, and ensures the gear clamping and centering accuracy of the centering cylinder 304.
[0022] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An adjustable positioning clamping device for gear machining, comprising a clamping body (1), characterized in that: An elastic diaphragm disc (2) is fixedly connected to one side of the clamping body (1), and an adjustment mechanism (3) is provided on the outside of the elastic diaphragm disc (2). The adjustment mechanism (3) includes three fixed frames (301). One side of each fixed frame (301) is fixedly connected to the left side of the elastic film disc (2). The other end of each fixed frame (301) is provided with a claw (302). An adjustment frame (303) is slidably connected inside each claw (302). A centering cylinder (304) is fixedly connected to one end of each adjustment frame (303). A screw (305) is rotatably connected inside each claw (302). The outer surface of each screw (305) is threadedly connected to the inner wall of the adjustment frame (303). A worm gear (306) is fixedly connected to one end of each screw (305). A protective cover (307) is fixedly connected to one side of each claw (302). A worm (308) is rotatably connected inside each protective cover (307). Each worm (308) is meshed with the worm gear (306). The adjustment mechanism (3) is equipped with a calibration component (4).
2. The adjustable positioning and clamping device for gear machining according to claim 1, characterized in that: Each of the claws (302) has four mounting bolts (309) threaded inside, and the other end of each mounting bolt (309) extends into the interior of the fixing frame (301). Each mounting bolt (309) is threadedly connected to the fixing frame (301).
3. The adjustable positioning and clamping device for gear machining according to claim 1, characterized in that: Two limiting rings (310) are fixedly connected to the outer surface of each screw (305), and each limiting ring (310) is rotatably connected to the inside of a pawl (302).
4. The adjustable positioning and clamping device for gear machining according to claim 1, characterized in that: Each worm (308) is fitted with a fastening spring (311) on its outer surface. One end of each fastening spring (311) is fixedly connected to one side of the protective cover (307). The other end of each fastening spring (311) is fixedly connected to a first toothed disc (312). Each first toothed disc (312) is slidably connected to the outside of the worm (308). Each worm (308) is fixedly connected to a second toothed disc (313) on its outer surface. One side of each second toothed disc (313) meshes with one side of the first toothed disc (312).
5. The adjustable positioning and clamping device for gear machining according to claim 1, characterized in that: The calibration component (4) includes three racks (401). The right side of each rack (401) is fixedly connected to the left side of a jaw (302). Each rack (401) has equidistantly arranged scale marks (402) fixedly connected to its left side. Each jaw (302) has a sliding block (403) slidably connected inside. One side of each sliding block (403) is fixedly connected to one side of an adjusting frame (303). Each sliding block (403) also has... A sliding rod (404) is slidably connected. A conical block (406) is fixedly connected to one end of each sliding rod (404). Each conical block (406) is snapped into the inside of the rack (401). A return spring (405) is sleeved on the outer surface of each sliding rod (404). One end of each return spring (405) is fixedly connected to the inner wall of the sliding block (403), and the other end of each return spring (405) is fixedly connected to one side of the conical block (406).
6. The adjustable positioning and clamping device for gear machining according to claim 5, characterized in that: Each of the sliding blocks (403) has a slidably connected positioning block (407) inside, and the left side of each positioning block (407) is fixedly connected to the right side of the conical block (406).