Positioning and clamping device for machining special-shaped shaft parts
By using a concentric shifting mechanism and a positioning clamping device, coaxial machining of grooves at both ends of irregular shafts is achieved, solving the problems of cumbersome operation and inconsistent grooves in the existing technology, thus improving processing efficiency and product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-04-03
AI Technical Summary
In the existing technology, the grooving process at both ends of irregular shafts requires repeated disassembly and clamping, which is cumbersome and cannot guarantee that the grooves are on the same plane, resulting in low processing efficiency and low product qualification rate.
It adopts a concentric repositioning mechanism and a positioning clamping device. The rotating seat drives the irregular shaft to rotate to achieve slotting at both ends, avoiding re-disassembly and clamping. Magnetic connection and locking bolts are used to achieve precise positioning.
The simplified operation process ensures that the slots at both ends are on the same plane, thus improving processing efficiency and product qualification rate.
Smart Images

Figure CN224073849U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of irregular part processing technology, and in particular to a positioning and clamping device for processing irregular shaft parts. Background Technology
[0002] Shaft parts are among the most widely used hardware accessories. They are mainly used to support transmission components to transmit torque. According to their structural form, they can be divided into three categories: plain shafts, stepped shafts, and irregular shafts. They can also be roughly divided into solid shafts or hollow shafts.
[0003] In existing technologies, when grooving both ends of an irregular shaft, one end of the irregular shaft is usually fixed first. After the groove is completed on the other end that is not covered, the irregular shaft is then removed and re-fixed to complete the grooving operation on the original fixed end. The overall operation process is cumbersome and cannot ensure that the two grooves are on the same plane. The processing efficiency and product qualification rate are not ideal.
[0004] Therefore, it is necessary to invent a positioning and clamping device for machining irregularly shaped shaft parts to solve the above problems. Utility Model Content
[0005] The purpose of this utility model is to provide a positioning and clamping device for machining irregularly shaped shaft parts. When grooving both ends of an irregularly shaped shaft, there is no need to disassemble and re-clamp the shaft, simplifying the operation process while ensuring that the two grooves are on the same plane, thus guaranteeing processing efficiency and product qualification rate. This solves the problem mentioned in the background art that when grooving both ends of an irregularly shaped shaft, one end of the shaft is often fixed first, and after the groove is completed on the other end, the shaft is removed and re-fixed to complete the grooving operation of the previously fixed end. The overall operation process is cumbersome and cannot effectively ensure that the two grooves are on the same plane, resulting in unsatisfactory processing efficiency and product qualification rate.
[0006] According to one aspect of this disclosure, the following technical solution is provided: a positioning and clamping device for machining irregularly shaped shaft parts, comprising:
[0007] The mounting assembly is used to fix the concentric transposition mechanism and the positioning clamping mechanism to the bottom of the slotting equipment;
[0008] A concentric transposition mechanism, comprising a rotating shaft, a rotating seat, a first magnet, an annular handle, and a second magnet;
[0009] The rotating shaft is rotatably mounted inside the connecting hole via a bearing. The rotating seat is fixedly sleeved on the top outer side of the rotating shaft and slidably fitted against the top of the base plate. Two first magnets are provided, evenly and fixedly nested on the top of the rotating seat and extending to the bottom of the rotating seat. The annular handle is fixedly sleeved on the outside of the rotating seat. The second magnet is fixedly nested on the top of the base plate and magnetically connected to the adjacent first magnet.
[0010] A positioning and clamping mechanism is used to position and clamp the irregular shaft to be processed.
[0011] A positioning and clamping device for machining irregularly shaped shaft parts according to at least one embodiment of the present disclosure, wherein the mounting assembly includes a base plate, and a connecting hole is provided through the center of the top of the base plate.
[0012] According to at least one embodiment of the present disclosure, a positioning and clamping device for machining irregular shaft parts is provided, wherein a support plate is fixedly provided on both sides of the bottom of the base plate, a fixing seat is fixedly provided at both ends of the outer side of the support plate, and a fixing hole is provided through the top of the fixing seat.
[0013] A positioning and clamping device for machining irregularly shaped shaft parts according to at least one embodiment of the present disclosure, the positioning and clamping mechanism includes a fixed frame and a locking bolt, the fixed frame is fixedly disposed on the top of the rotating seat, and the locking bolt passes through the center of the top of the fixed frame and is threadedly connected to the fixed frame.
[0014] According to at least one embodiment of the present disclosure, a positioning and clamping device for machining irregular shaft parts is provided. The positioning and clamping mechanism further includes a clamping base and a V-shaped clamping groove. The clamping base is located inside the fixed frame and fixedly disposed on the top of the rotating seat. The V-shaped clamping groove is opened at the center position of the top of the clamping base, and an irregular shaft is placed inside the V-shaped clamping groove.
[0015] The technical effects and advantages of this utility model are as follows:
[0016] This invention incorporates a concentric repositioning mechanism. After the grooving mechanism secures the irregular shaft, the grooving device lowers the cutting tool to groove one end of the shaft. The cutting tool then resets, and the rotating seat rotates via a ring handle. This rotation, centered on the rotating shaft, drives the grooving mechanism to rotate, causing the two ends of the shaft to reposition. The grooving device then lowers the cutting tool again to groove the other end of the shaft. Compared to existing technologies, this invention eliminates the need for disassembling and re-clamping the irregular shaft during grooving at both ends, simplifying the process and ensuring the two grooves are on the same plane, thus guaranteeing processing efficiency and product qualification rate. Attached Figure Description
[0017] The accompanying drawings illustrate exemplary embodiments of the present disclosure and, together with the description thereof, serve to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this specification.
[0018] Figure 1 This is a schematic diagram of the overall structure of a positioning and clamping device for machining irregularly shaped shaft parts according to one embodiment of the present disclosure.
[0019] Figure 2 This is a schematic diagram of the mounting assembly and concentric repositioning mechanism of a positioning and clamping device for machining irregularly shaped shaft parts according to one embodiment of the present disclosure.
[0020] Figure 3 This is a schematic diagram of the positioning and clamping mechanism of a positioning and clamping device for machining irregularly shaped shaft parts according to one embodiment of the present disclosure.
[0021] The specific labels in the attached figures are as follows:
[0022] 1. Mounting components; 11. Base plate; 12. Connecting holes; 13. Support plate; 14. Mounting base; 15. Mounting holes;
[0023] 2. Concentric transposition mechanism; 21. Rotating shaft; 22. Rotating seat; 23. First magnet; 24. Annular handle; 25. Second magnet;
[0024] 3. Positioning and clamping mechanism; 31. Fixing frame; 32. Locking bolt; 33. Clamping base; 34. V-shaped clamping groove. Detailed Implementation
[0025] For descriptive purposes, this disclosure may use spatial relative terms such as “below,” “under,” “below,” “down,” “above,” “above,” “higher,” and “side (e.g., in a “sidewall”)” to describe the relationship between one component and another component as shown in the accompanying drawings. In addition to the orientations depicted in the drawings, the spatial relative terms are also intended to encompass different orientations of the device during use, operation, and / or manufacture. For example, if the device in the drawings is flipped, a component described as “below” or “under” other components or features would subsequently be positioned “above” said other components or features. Thus, the exemplary term “below” can encompass both “above” and “below” orientations. Furthermore, the device may be otherwise positioned (e.g., rotated 90 degrees or in other orientations), thus interpreting the spatial relative descriptive terms used herein accordingly.
[0026] Figure 1This is a schematic diagram of the overall structure of a positioning and clamping device for machining irregularly shaped shaft parts according to one embodiment of the present disclosure.
[0027] Figure 2 This is a schematic diagram of the mounting assembly 1 and the concentric shifting mechanism 2 of a positioning and clamping device for machining irregularly shaped shaft parts according to one embodiment of the present disclosure.
[0028] Figure 3 This is a schematic diagram of the positioning and clamping mechanism 3 of a positioning and clamping device for machining irregularly shaped shaft parts according to one embodiment of the present disclosure.
[0029] like Figures 1-3 As shown, the positioning and clamping device for machining irregular shaft parts disclosed herein may include components such as: mounting assembly 1, concentric shifting mechanism 2, and positioning and clamping mechanism 3.
[0030] like Figure 2 As shown in this disclosure, the mounting assembly 1 includes a base plate 11, a connecting hole 12 is provided through the center of the top of the base plate 11, a support plate 13 is fixedly provided on both sides of the bottom of the base plate 11, a fixing seat 14 is fixedly provided on both outer ends of the support plate 13, and a fixing hole 15 is provided through the top of the fixing seat 14.
[0031] This allows multiple fixing bolts to pass through multiple fixing holes 15, thereby fixing the device below the grooving equipment, so that the irregular shaft after positioning and clamping is located at the grooving position for subsequent grooving operations.
[0032] like Figure 2 As shown, in a preferred embodiment, the concentric repositioning mechanism 2 includes a rotating shaft 21, a rotating seat 22, a first magnet 23, an annular handle 24, and a second magnet 25. The rotating shaft 21 is rotatably disposed inside the connecting hole 12 via a bearing. The rotating seat 22 is fixedly sleeved on the top outer side of the rotating shaft 21 and slidably attached to the top of the base plate 11. Two first magnets 23 are provided, and the two first magnets 23 are evenly and fixedly nested on the top of the rotating seat 22 and extend to the bottom of the rotating seat 22. The annular handle 24 is fixedly sleeved on the outside of the rotating seat 22. The second magnet 25 is fixedly nested on the top of the base plate 11 and magnetically connected to the adjacent first magnet 23.
[0033] Therefore, after the positioning and clamping mechanism 3 completes the positioning and clamping of the irregular shaft, the grooving equipment drives the cutting tool to descend and complete the grooving of one end of the irregular shaft. Then, the grooving equipment drives the cutting tool to reset, and then the rotating seat 22 is rotated through the ring handle 24. This causes the rotating seat 22 to rotate around the rotating shaft 21, and the positioning and clamping mechanism 3 to rotate. The positioning and clamping mechanism 3 then causes the two ends of the irregular shaft to be interchanged. Then, the grooving equipment drives the cutting tool to descend again and completes the grooving of the other end of the irregular shaft. Compared with the prior art, when grooving both ends of the irregular shaft, there is no need to disassemble and clamp the irregular shaft again. This simplifies the operation process and ensures that the two grooves are on the same plane, thus ensuring processing efficiency and product qualification rate.
[0034] Additionally, it should be noted that, in order to prevent the rotating seat 22 from moving due to the rotation of the cutting tool during the grooving process, the second magnet 25 is set as an electromagnet. After being energized, the second magnet 25 attracts and fixes the adjacent first magnet 23, thereby preventing the rotating seat 22 from moving during the grooving process.
[0035] like Figure 3 As shown in this disclosure, the positioning and clamping mechanism 3 includes a fixed frame 31, a locking bolt 32, a clamping base 33, and a V-shaped clamping groove 34. The fixed frame 31 is fixedly mounted on the top of the rotating seat 22. The locking bolt 32 passes through the center of the top of the fixed frame 31 and is threadedly connected to the fixed frame 31. The clamping base 33 is located inside the fixed frame 31 and is fixedly mounted on the top of the rotating seat 22. The V-shaped clamping groove 34 is opened at the center of the top of the clamping base 33, and an irregularly shaped shaft is placed inside the V-shaped clamping groove 34.
[0036] Therefore, the irregular shaft can be placed inside the V-shaped clamping groove 34, and then the irregular shaft can be slid until the outer annular protrusion of the irregular shaft is in contact with the side of the clamping base 33. At this time, the clamping base 33 positions the irregular shaft through the outer annular protrusion of the irregular shaft. Then, the locking bolt 32 is rotated until the locking bolt 32 presses the irregular shaft into the inner side of the V-shaped clamping groove 34 to achieve clamping. In addition, in order to avoid wear of the irregular shaft caused by the rotation of the locking bolt 32, a pressure block is provided at the bottom of the locking bolt 32 through a bearing rotating sleeve. When the locking bolt 32 descends, the pressure block can press against the top of the irregular shaft, thereby avoiding direct contact between the locking bolt 32 and the irregular shaft.
[0037] It should also be noted that any content not described in detail in this specification is prior art known to those skilled in the art.
[0038] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.
Claims
1. A positioning and clamping device for machining of a profiled shaft-like part, characterized in that, The utility model relates to a kind of installation components, concentric transposition mechanism and positioning clamping mechanism are fixed under slotting equipment. Concentric transposition mechanism includes rotating shaft, rotating seat, first magnet, annular handle and second magnet. The rotating shaft is rotatably arranged in the connecting hole by bearing, the rotating seat is fixedly sleeved on the top of the rotating shaft outside and is slidably attached to the top of the base plate, the first magnet is provided with two, the two first magnets are uniformly fixedly nested on the top of the rotating seat and extend to the bottom of the rotating seat, the annular handle is fixedly sleeved on the outside of the rotating seat, and the second magnet is fixedly nested on the top of the base plate and magnetically connected with the adjacent first magnet. Positioning clamping mechanism is used for positioning and clamping the special-shaped shaft to be processed. The installation component includes a base plate, and a connecting hole is formed through the center of the top of the base plate.
2. The positioning and clamping device for machining of profiled shaft-like parts according to claim 1, characterized in that: Support plates are fixedly arranged on both sides of the bottom of the base plate, and fixed seats are fixedly arranged at both ends of the outside of the support plates.
3. The positioning and clamping device for machining of profiled shaft-like parts according to claim 2, characterized in that: The positioning clamping mechanism includes a fixed frame and a locking bolt, the fixed frame is fixedly arranged on the top of the rotating seat, and the locking bolt penetrates the center of the top of the fixed frame and is threadedly connected with the fixed frame.
4. The positioning and clamping device for machining of profiled shaft parts according to claim 3, characterized in that: The positioning clamping mechanism further includes a clamping base and a V-shaped clamping groove, the clamping base is fixedly arranged on the top of the rotating seat inside the fixed frame, the V-shaped clamping groove is formed in the center of the top of the clamping base, and the special-shaped shaft is placed inside the V-shaped clamping groove.
5. The positioning and clamping device for machining of profiled shaft-like parts according to claim 4, characterized in that: