Clamping device for precision machining and manufacturing
By designing a clamping device with a crank rotating rod, worm gear, and gear rack structure, the problem of low adaptability of traditional clamping devices is solved, enabling stable clamping and processing of parts of different sizes and improving processing efficiency.
Patent Information
- Application Number
- CN202520649842.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-08
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-04-08
AI Technical Summary
Traditional clamping devices used in precision machining and manufacturing are not highly adaptable and cannot simultaneously clamp mechanical parts of different sizes, causing the parts to wobble during processing, which increases the workload and difficulty for workers.
A clamping device is designed, comprising a crank rotating rod, a worm gear transmission assembly, a gear and rack structure, and a clamping assembly. The crank rotating rod drives the worm gear to rotate, thereby moving the gear and rack, adjusting the fixed block and clamping plate to accommodate parts of different sizes, and using a threaded rod to drive a second clamping plate to clamp the top of the part.
It achieves stable clamping of mechanical parts of different sizes, improves the adaptability and stability of the clamping device, reduces the shaking of parts during processing, and improves processing efficiency.
Smart Images
Figure CN223971286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical processing clamping technology, and in particular to a clamping device for precision mechanical processing and manufacturing. Background Technology
[0002] Precision machining refers to the process of altering the shape, dimensions, or properties of a workpiece using mechanical equipment. Further processing is required to meet the technical requirements of the part. This necessitates clamping the rough workpiece to facilitate cutting and drilling according to the required size, shape, and form.
[0003] Traditional clamping devices used in precision machining can only clamp mechanical parts of the same size. When machining larger or smaller mechanical parts, the clamping device needs to be changed to clamp the mechanical parts. This results in low adaptability, inconvenience for users, and unnecessary workload for operators. Traditional clamping devices used in precision machining only clamp the two sides of the mechanical parts, which leads to low stability of the clamped mechanical parts. During machining, the mechanical parts may shake, making it inconvenient for operators to machine the mechanical parts. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a clamping device for precision machining and manufacturing, which solves the aforementioned problems.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A clamping device for precision machining includes a placement box, a support shell fixedly connected to the bottom side of the placement box, a crank rotating rod rotatably connected to the inner wall of the support shell, one side of the crank rotating rod extending outside the support shell, a transmission component mounted on the crank rotating rod, a gear disposed inside the placement box, a first rack and a second rack disposed inside the placement box, both of the first rack and the second rack meshing with the gear, a fixing block fixedly connected to the top side of each of the first rack and the second rack, two through slots equally spaced on the top side of the placement box, the fixing blocks penetrating the through slots, and a first clamping plate fixedly connected to the top side of each of the two fixing blocks, the first clamping plate being provided with a clamping component.
[0007] Preferably, the transmission assembly includes a worm gear sleeved on the crank handle rotating rod, a transmission rod rotatably connected to the inner wall of the support shell, the transmission rod extending into the interior of the placement box, and one end of the transmission rod being fixedly connected to the bottom side of the gear. The transmission assembly enables the gear to rotate.
[0008] Preferably, a worm gear is fixedly sleeved on the outside of the transmission rod, and the worm gear is meshed with the worm.
[0009] Preferably, the bottom of the placement box is fixedly connected to four support columns, which are distributed at equal intervals. The four support columns make the placement box more stable during use.
[0010] Preferably, the inner wall of the placement box has two correspondingly distributed limiting grooves. The first rack and the second rack slide within the limiting grooves via sliders. The limiting grooves make the first rack and the second rack more stable when moving.
[0011] Preferably, the top side of the placement box is provided with three pulley grooves, which are evenly distributed. The bottom side of each of the two first clamping plates is provided with three sliding wheels, which are evenly distributed. Each pair of sliding wheels slides in the same corresponding pulley groove. The sliding wheels make the first clamping plates more stable when moving.
[0012] Preferably, the clamping assembly includes fixing grooves formed on both sides of the first clamping plate, wherein the two fixing grooves are slidably connected to the same moving block, the moving block is threadedly connected to a threaded rod, and the bottom side of the threaded rod is fixedly connected to a second clamping plate. The clamping assembly can clamp the top side of the mechanical part.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: When it is necessary to clamp mechanical parts of different sizes, the mechanical parts are placed on the placement box, the crank handle is turned to rotate the rotating rod, the worm gear rotates, the worm wheel rotates, the gear rotates, the first rack and the second rack move, the fixing block moves, the first clamping plate moves towards the center, and at this time the first clamping plate moves to the outside of the mechanical parts to clamp them. Through the above structure, mechanical parts of different sizes can be clamped, which makes it convenient for workers to process the clamped parts, increases the adaptability of the clamping device, and makes it convenient for workers to use.
[0014] When it is necessary to clamp the top of a mechanical part, first move the moving block onto the mechanical part, rotate the threaded rod to move the second clamping plate, and at the same time move the telescopic column. When the second clamping plate moves to the outside of the mechanical part, it clamps it. The above structure can clamp the top of the mechanical part, which is convenient for workers to use and increases the clamping force on the mechanical part, so that the mechanical part will not shake during processing. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0016] Figure 2 This is a schematic diagram of the gear structure of this utility model;
[0017] Figure 3This is a cross-sectional structural diagram of the present invention;
[0018] Figure 4 This is a partial cross-sectional structural schematic diagram of the present invention;
[0019] Figure 5 This utility model Figure 4 A schematic diagram of the structure of part A;
[0020] Figure 6 This utility model Figure 3 A structural diagram of section B;
[0021] Figure 7 This utility model Figure 3 A structural diagram of part C.
[0022] In the diagram: 1. Placement box; 2. Support column; 3. Support shell; 4. Crank handle; 5. Worm gear; 6. Worm wheel; 7. Transmission rod; 8. Gear; 9. First rack; 10. Second rack; 11. Limiting groove; 12. Fixing block; 13. Through groove; 14. First clamping plate; 15. Fixing groove; 16. Moving block; 17. Threaded rod; 18. Second clamping plate; 19. Telescopic column; 20. Sliding wheel; 21. Sliding wheel groove. Detailed Implementation
[0023] 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.
[0024] Example: Refer to Figure 1-7A clamping device for precision machining and manufacturing includes a placement box 1. A support shell 3 is fixedly connected to the bottom side of the placement box 1. A crank rotating rod 4 is rotatably connected to the inner wall of the support shell 3, and one side of the crank rotating rod 4 extends outside the support shell 3. A transmission component is provided on the crank rotating rod 4. A gear 8 is provided inside the placement box 1. A first rack 9 and a second rack 10 are provided inside the placement box 1. Both the first rack 9 and the second rack 10 are meshed with the gear 8. A fixing block 12 is fixedly connected to the top side of both the first rack 9 and the second rack 10. Two through slots 13 are opened on the top side of the placement box 1 and are evenly distributed. The fixing blocks 12 pass through the through slots 13. A first clamping plate 14 is fixedly connected to the top side of both fixing blocks 12. A clamping component is provided on the first clamping plate 14. The transmission assembly includes a worm gear 5 sleeved on the crank handle rotation rod 4. A transmission rod 7 is rotatably connected to the inner wall of the support shell 3, extending into the interior of the placement box 1. One end of the transmission rod 7 is fixedly connected to the bottom side of the gear 8. Through the transmission assembly, the gear 8 can rotate. A worm wheel 6 is fixedly sleeved on the outside of the transmission rod 7, meshing with the worm gear 5. Four support columns 2 are fixedly connected to the bottom of the placement box 1, and the four support columns 2 are evenly distributed. The four support columns 2 make the placement box 1 more stable during use. Two correspondingly distributed limiting grooves 11 are opened on the inner wall of the placement box 1. The first rack 9 and the second rack 10 slide in the limiting grooves 11 through sliders. The limiting grooves 11 make the first rack 9 and the second rack 10 more stable when moving. Three pulley grooves 21 are opened on the top side of the placement box 1, evenly distributed. The bottom sides of the two first clamping plates 14 are also provided with... Three sliding wheels 20 are provided, evenly distributed, and every two sliding wheels 20 slide in the same corresponding sliding wheel groove 21. The sliding wheels 20 make the first clamping plate 14 more stable when moving. The clamping assembly includes fixed grooves 15 on both sides of the first clamping plate 14. The same moving block 16 is slidably connected inside the two fixed grooves 15. A threaded rod 17 is threadedly connected to the moving block 16. A second clamping plate 18 is fixedly connected to the bottom side of the threaded rod 17. The clamping assembly can clamp the top side of the mechanical part.
[0025] In use: When clamping mechanical parts of different sizes, first place the mechanical parts on the placement box 1, then turn the crank handle 4. The rotation of the crank handle 4 will drive the worm 5 sleeved on the crank handle 4 to rotate. Since the worm 5 is meshed with the worm wheel 6, the rotation of the worm 5 causes the worm wheel 6 to rotate, which in turn drives the gear 8 to rotate. At this time, the meshing connection between the first rack 9 and the second rack 10 will begin to move. Since the first rack 9 and the second rack 10 slide in the limiting groove 11 through the slider, the first rack 9 and the second rack 10 will move. The rack 10 is more stable when moving, which drives the fixed block 12 to move. The movement of the fixed block 12 causes the two first clamping plates 14 to move closer to the center. When the two first clamping plates 14 move closer to the center, the sliding wheel 20 moves in the sliding groove 21, which makes the first clamping plates 14 more stable when moving. At this time, the first clamping plates 14 move to the outside of the mechanical parts and clamp them. With the above structure, mechanical parts of different sizes can be clamped, which makes it easier for workers to process the clamped parts, increases the adaptability of the clamping device, and makes it easier for workers to use.
[0026] When it is necessary to clamp the top of the mechanical part, first move the moving block 16 onto the mechanical part, then rotate the threaded rod 17. The rotation of the threaded rod 17 drives the second clamping plate 18 to move, and at the same time drives the telescopic column 19 to move. When the second clamping plate 18 moves to the outside of the mechanical part, it clamps it. The above structure can clamp the top of the mechanical part, which is convenient for workers to use and increases the clamping force on the mechanical part. The mechanical part will not shake during processing.
[0027] 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 process, method, article, or apparatus.
[0028] 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 clamping device for precision mechanical manufacturing, comprising a placement box (1), characterized in that, The bottom side of the placing box (1) is fixedly connected with a support shell (3), the inner wall of the support shell (3) is rotatably connected with a crank handle rotating rod (4), one side of the crank handle rotating rod (4) extends to the outside of the support shell (3), a transmission assembly is arranged on the crank handle rotating rod (4), the inside of the placing box (1) is provided with a gear (8), the inside of the placing box (1) is provided with a first gear rack (9) and a second gear rack (10), the first gear rack (9) and the second gear rack (10) are in meshing connection with the gear (8), the top side of the first gear rack (9) and the second gear rack (10) is fixedly connected with a fixed block (12), the top side of the placing box (1) is provided with two through grooves (13) which are equidistantly distributed, the fixed block (12) penetrates the through groove (13), the top side of the two fixed blocks (12) is fixedly connected with a first clamping plate (14), a clamping assembly is arranged on the first clamping plate (14).
2. The clamping device for precision machining manufacturing according to claim 1, characterized in that, The transmission assembly comprises a worm (5) sleeved on the crank handle rotating rod (4), the inner wall of the support shell (3) is rotatably connected with a transmission rod (7), the transmission rod (7) extends to the inside of the placing box (1), and one end of the transmission rod (7) is fixedly connected to the bottom side of the gear (8).
3. The clamping device for precision machining manufacturing according to claim 2, characterized in that, The outside of the transmission rod (7) is fixedly sleeved with a worm wheel (6), the worm wheel (6) is in meshing connection with the worm (5).
4. The clamping device for precision machining manufacturing according to claim 1, characterized in that, The bottom of the placing box (1) is fixedly connected with four support columns (2), the four support columns (2) are equidistantly distributed.
5. The clamping device for precision machining manufacturing according to claim 1, characterized in that, The inner wall of the placing box (1) is provided with two corresponding distribution limit sliding grooves (11), the first gear rack (9) and the second gear rack (10) are slidably arranged in the limit sliding groove (11) through a sliding block.
6. The clamping device for precision machining manufacturing according to claim 1, characterized in that, The top side of the placing box (1) is provided with three pulley grooves (21) which are equidistantly distributed, the bottom side of the two first clamping plates (14) is provided with three sliding wheels (20) which are equidistantly distributed, and every two sliding wheels (20) are slidably arranged in the same corresponding pulley groove (21).
7. The clamping device for precision machining manufacturing according to claim 1, characterized in that, The clamping assembly comprises two fixed grooves (15) arranged on the two sides of the first clamping plate (14), the inside of the two fixed grooves (15) is slidably connected with the same moving block (16), the moving block (16) is threadedly connected with a threaded rod (17), the bottom side of the threaded rod (17) is fixedly connected with a second clamping plate (18).