Special-shaped spring end face grinding tool
By using the positioning holes and clamping components of the tooling for grinding the end face of irregularly shaped springs, the problem of keeping the irregularly shaped springs vertical during the grinding process was solved, thus improving the processing accuracy and stability.
Patent Information
- Application Number
- CN202520419087.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-11
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-11
AI Technical Summary
Existing technology makes it difficult to keep the end face perpendicular to the spring axis when grinding irregularly shaped springs, resulting in a decrease in processing accuracy.
A special-shaped spring end face grinding fixture is used. The fixture uses positioning holes to abut against the outer wall of the spring and uses clamping components to keep the spring vertical, including clamping blocks and driving components, to ensure that the spring does not deform during the grinding process.
This enabled normal grinding of the end faces of irregularly shaped springs, improving processing accuracy and stability.
Smart Images
Figure CN223876675U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of spring processing equipment, in particular to a special-shaped spring end face polishing tool. BACKGROUND
[0002] After spring processing is completed, the end face of the steel wire of the spring is usually perpendicular to the axis of the steel wire, and when the spring is in use, the end of the spring usually directly abuts against a stress surface, if the end face of the steel wire is still perpendicular to the axis of the steel wire, the end face of the steel wire will produce a pressure mark on the side wall of the first coil of the spring under pressure, thereby affecting the strength of the spring, therefore, after spring processing is completed, the end face of the spring is polished so that the end face of the spring can be perpendicular to the axis of the spring itself.
[0003] At present, spring processing is usually realized by using a spring end face grinding machine, the spring is placed in a limiting hole on a disc tool, the disc tool rotates along the axis thereof to drive the spring to rotate along the axis of the disc tool, and then the upper and lower end faces of the spring are polished by using grinding discs located on the upper and lower sides of the spring, but when the shape of the spring to be polished is a circular truncated cone, the limiting hole on the disc tool is difficult to stably limit the spring, and the axis of the spring cannot be kept vertical when the spring is subjected to external force, thereby affecting the normal processing of the spring.
[0004] Therefore, a new technical scheme needs to be proposed to solve the above problems. CONTENT OF THE UTILITY MODEL
[0005] In order to make the special-shaped spring always keep a vertical state during polishing and improve the polishing precision, the application provides a special-shaped spring end face polishing tool.
[0006] The application provides a special-shaped spring end face polishing tool, which adopts the following technical scheme:
[0007] A special-shaped spring end face polishing tool, comprising a tray and a plurality of positioning rings arranged in the circumferential direction of the tray, a plurality of limiting holes are arranged in the circumferential direction of the tray, the positioning rings are arranged in the limiting holes, a positioning hole is coaxially arranged on the positioning ring, the upper end diameter of the positioning hole is larger than the lower end diameter of the positioning hole, the spring is arranged in the positioning hole, and the outer wall of the spring abuts against the inner wall of the positioning hole.
[0008] By adopting the above technical scheme, the outer wall of the spring abuts against the positioning hole, so that the spring can keep a vertical state, and the end face of the special-shaped spring can be normally polished.
[0009] Optionally, the positioning ring is provided with a clamping assembly for clamping the spring, the clamping assembly comprises a clamping block slidingly arranged in the positioning ring and a driving member for driving the clamping block to move close to the spring, a plurality of sliding grooves are formed in the inner wall of the positioning hole in the circumferential direction, the clamping block is slidingly arranged in the sliding groove, the sliding direction of the clamping block intersects with the axis of the positioning ring, and one end of the clamping block close to the axis of the positioning ring is capable of abutting against the outer wall of the spring.
[0010] By using the above technical scheme, the spring is clamped by the clamping assembly, and the spring can maintain a vertical state when the spring is compressed due to grinding.
[0011] Optionally, the driving member comprises a plurality of pushing blocks slidingly arranged in the positioning ring and a connecting ring for connecting the pushing blocks, the positioning ring is provided with a pushing groove in communication with the sliding groove, the pushing block is slidingly arranged in the pushing groove, the rotation axis of the pushing block coincides with the axis of the positioning ring, one end of the clamping block away from the axis of the positioning ring is provided with a pushing inclined surface, the end of the pushing inclined surface close to the pushing block is inclined toward the axis of the positioning ring, and the pushing block is capable of abutting against the pushing inclined surface and the end of the clamping block away from the axis of the positioning ring.
[0012] By using the above technical scheme, after the spring is placed in the positioning hole, the connecting ring is rotated to synchronously rotate the pushing block, the pushing ring abuts against the pushing inclined surface and moves along the pushing inclined surface, thereby driving the clamping block to move toward the axis of the positioning ring, and the positioning block abuts against the outer wall of the special-shaped spring to clamp the spring.
[0013] Optionally, the upper end of the pushing block is provided with a guide inclined surface, the end of the guide inclined surface close to the axis of the positioning ring is inclined downward, and the guide inclined surface is capable of abutting against the lower end of the spring inserted into the positioning ring.
[0014] By using the above technical scheme, when the spring is inserted into the positioning ring, the lower end of the spring is capable of abutting against the guide inclined surface to move downward along the guide inclined surface, and the clamping block is driven to move away from the axis of the positioning ring in the process of moving downward of the spring, so that the clamping block is retracted into the sliding groove, thereby eliminating the need for manually moving the clamping block when the spring is installed into the positioning ring, and the process of installing the spring into the positioning ring is more convenient.
[0015] Optionally, the connecting ring is sleeved outside the positioning ring, the connecting ring is connected with the pushing block through the connecting rod, and the upper end surface of the connecting ring is flush with the upper end surface of the positioning ring.
[0016] By using the above technical scheme, the upper end of the connecting ring does not protrude from the upper end surface of the positioning ring, so that the grinding wheel does not contact the connecting ring when the grinding wheel grinds the end surface of the spring, thereby enabling the grinding wheel to normally grind the spring.
[0017] Optionally, an adjusting groove is formed on the outer wall of the positioning ring away from the connecting ring, a limiting bolt is arranged in the adjusting groove, and the limiting bolt is in threaded cooperation with the outer wall of the positioning ring
[0018] By adopting the above technical scheme, the connecting ring can be normally sleeved on the outer rotation of the positioning ring by cooperation of the adjusting groove and the adjusting bolt.
[0019] Optionally, a friction groove is arranged on the outer wall of the connecting ring.
[0020] By adopting the above technical scheme, when the connecting ring is held to drive the connecting ring to rotate, the friction groove is used to increase the friction between the connecting ring and the hand, so that the connecting ring is not easy to slip between the hand when being rotated, and the rotation of the connecting ring is more labor-saving.
[0021] Optionally, an anti-skid coating is arranged on the end face of the clamping block close to the axis of the positioning ring.
[0022] By adopting the above technical scheme, the anti-skid coating is used to increase the friction between the clamping block and the spring, so that the clamping block and the spring are not easy to slip when abutting against each other.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. The positioning hole is abutted with the outer wall of the spring, so that the spring can maintain a vertical state, and the end face of the special-shaped spring can be normally polished.
[0025] 2. The spring is clamped by the clamping assembly, and the spring can still maintain a vertical state when the spring is compressed due to polishing. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 is a structural schematic diagram of an embodiment of the present application;
[0027] Figure 2 is a schematic diagram of an embodiment of the present application for showing the structure of the positioning ring;
[0028] Figure 3 is a schematic diagram of an embodiment of the present application for showing the structure of the clamping assembly.
[0029] In the diagram, 1 is the material tray; 11 is the limiting hole; 12 is the fastening bolt; 2 is the positioning ring; 21 is the positioning hole; 22 is the sliding groove; 23 is the pushing groove; 24 is the clearance groove; 3 is the clamping assembly; 31 is the clamping block; 311 is the pushing inclined surface; 312 is the guide inclined surface; 313 is the anti-slip coating; 32 is the driving component; 321 is the pushing block; 322 is the connecting ring; 323 is the adjusting groove; 324 is the friction groove; 33 is the connecting rod; and 34 is the limiting bolt. Detailed Implementation
[0030] The present application will be further described in detail below with reference to the accompanying drawings.
[0031] This application discloses a grinding fixture for the end face of irregularly shaped springs, such as... Figure 1 As shown, the device includes a disc-shaped material tray 1 and several positioning rings 2 circumferentially arranged on the material tray 1. The material tray 1 has several limiting holes 11 circumferentially arranged, and the positioning rings 2 pass through the limiting holes 11. The upper end of the positioning rings 2 is higher than the upper surface of the material tray 1, and the lower end of the positioning rings 2 is lower than the lower surface of the material tray 1. Several fastening bolts 12 are circumferentially arranged on the outer wall of the material tray 1. The fastening bolts 12 are threaded onto the material tray 1 and abut against the outer wall of the positioning rings 2, thereby limiting the position of the positioning rings 2 relative to the material tray 1. Positioning holes 21 are coaxially arranged on the positioning rings 2, penetrating both the upper and lower ends of the positioning rings 2. The upper diameter of the positioning hole 21 is larger than the lower diameter of the positioning hole 21. Therefore, after the spring is placed in the positioning hole 21, the outer wall of the spring can abut against the inner wall of the positioning hole 21, thus limiting the position of the spring using the positioning rings 2 and keeping the spring in a vertical state.
[0032] like Figure 2 and Figure 3 As shown, during the grinding process, the upper and lower end faces of the spring are subjected to external forces, causing the spring to compress. After compression, the overall shape of the spring changes, preventing it from abutting against the inner wall of the positioning hole 21 and thus preventing it from maintaining a vertical position. Therefore, the positioning ring 2 is also equipped with a clamping assembly 3 to clamp the spring. The clamping assembly 3 includes several clamping blocks 31 slidably disposed on the positioning ring 2 and a driving member 32 that pushes the clamping blocks 31 toward the axis of the positioning ring 2. Several sliding grooves 22 are circumferentially opened on the inner wall of the positioning ring 2. The clamping blocks 31 are embedded in the sliding grooves 22 and move in the direction of movement of the clamping blocks 31 intersecting the axis of the positioning ring 2. After the spring is placed in the positioning ring 2, the driving member 32 drives the clamping blocks 31 to move toward the axis of the positioning ring 2, so that the clamping blocks 31 can abut against the outer wall of the spring, thereby limiting the position of the spring and ensuring that the spring remains vertical when compressed.
[0033] The driving member 32 comprises a pushing block 321 slidingly arranged in the positioning ring 2 and a connecting ring 322 connecting the pushing block 321, and a plurality of pushing grooves 23 are arranged circumferentially on the positioning ring 2, the pushing grooves 23 are arranged in a circular arc shape and the axis of the pushing grooves 23 coincides with the axis of the positioning ring 2, and the pushing grooves 23 are communicated with the sliding grooves 22. The pushing block 321 is embedded in the pushing groove 23 and rotates along the axis of the positioning ring 2, and the end of the clamping block 31 away from the axis of the positioning ring 2 is provided with a pushing inclined surface 311, and the end of the pushing inclined surface 311 close to the pushing block 321 is inclined towards the axis direction of the positioning ring 2, so that when the pushing block 321 moves along the pushing groove 23, the pushing block 321 abuts against the pushing inclined surface 311 and moves along the pushing inclined surface 311, thereby pushing the clamping block 31 towards the axis direction of the positioning ring 2, and realizing the clamping of the spring by the clamping block 31.
[0034] Since the clamping block 31 will not automatically return to the sliding groove 22 when the pushing block 321 is reset and no longer abuts against the clamping block 31, thereby affecting the insertion of the spring into the positioning hole 21, therefore, the upper end of the clamping block 31 is further provided with a guide inclined surface 312, and the end of the guide inclined surface 312 close to the axis of the positioning ring 2 is inclined downward. When the spring is inserted into the positioning hole 21, the lower end of the spring can abut against the guide inclined surface 312, thereby moving downward along the guide inclined surface 312, pushing the clamping block 31 into the sliding groove 22, so that the clamping block 31 will not affect the process of inserting the spring into the positioning hole 21.
[0035] The upper end of the pushing block 321 is provided with a connecting rod 33, the connecting ring 322 is sleeved outside the positioning ring 2 and rotates along the axis of the positioning ring 2, and the upper end surface of the connecting ring 322 is flush with the upper end surface of the positioning ring 2. The upper end of the positioning ring 2 is coaxially provided with a recess groove 24, the recess groove 24 is arranged on the side of the pushing groove 23 away from the axis of the positioning ring 2, and the recess groove 24 penetrates the outer wall of the positioning ring 2. The connecting rod 33 is arranged in the recess groove 24 and the upper end surface of the connecting rod 33 is flush with the upper end surface of the positioning ring 2. The end of the connecting rod 33 away from the pushing block 321 is fixed with the connecting ring 322, so that the pushing block 321 can be driven to rotate simultaneously when the connecting ring 322 rotates. The outer wall of the connecting ring 322 away from the positioning ring 2 is provided with an adjusting groove 323, and a limiting bolt 34 is arranged in the adjusting groove 323, the limiting bolt 34 is threadedly connected with the outer wall of the positioning ring 2, so that the position of the connecting ring 322 relative to the positioning ring 2 is limited by the limiting bolt 34. A plurality of friction grooves 324 are further arranged on the side wall of the connecting ring 322 away from the positioning ring 2, and the friction force is increased by the friction grooves 324, so that it is not easy to slip when holding the connecting ring 322.
[0036] In order to make the connection of the clamping block 31 and the spring more stable, the end face of the clamping block 31 close to the axis of the positioning ring 2 is provided with an anti-skid coating 313, which is selected as a coating mixed by polyurethane, acrylic, epoxy and the like in the embodiment. The anti-skid coating 313 increases the friction on the side wall of the clamping block 31 close to the axis of the positioning ring 2, so that the clamping block 31 and the spring can be in stable contact when they are in contact, thereby enabling the clamping assembly 3 to stably clamp the spring.
[0037] The implementation principle of the embodiment is that the smaller end of the spring is aligned with the positioning hole 21 and then placed in the positioning hole 21, and then the connecting ring 322 is rotated to drive the pushing block 321 to move towards the clamping block 31, the pushing block 321 is used to push the clamping block 31 towards the spring, until the pushing block 321 abuts against the end face of the clamping block 31 away from the axis of the positioning ring 2. After the springs are placed in the positioning ring 2 on the tray 1, the tray 1 is rotated to between the two grinding discs and rotated, and the grinding discs are rotated to grind the springs.
[0038] The embodiments of the specific embodiment are the preferred embodiments of the application, but do not limit the protection scope of the application, so that: any equivalent changes made according to the structure, shape, principle of the application should be covered within the protection scope of the application.
Claims
1. A special-shaped spring end face polishing tool, characterized in that: The utility model provides a kind of positioning ring (2) and a plurality of limiting holes (11) are set on the tray (1) and the tray (1) is set on the tray (1), the limiting hole (11) is set in the limiting hole (11), the positioning ring (2) is coaxially set on the positioning ring (2) and is set in the positioning hole (21), the upper end diameter of the positioning hole (21) is greater than the lower end diameter of the positioning hole (21), spring is set in the positioning hole (21) and the outer wall of spring and the inner wall of positioning hole (21) keep abutment.
2. The special-shaped spring end face polishing tool according to claim 1, characterized in that: The positioning ring (2) is provided with the spring clamping clamping assembly (3), the clamping assembly (3) includes the clamping block (31) slidingly arranged in the positioning ring (2) and the driving member (32) for pushing the clamping block (31) to be close to the spring, the inner wall of the positioning hole (21) is circumferentially provided with a plurality of sliding grooves (22), the clamping block (31) is embedded in the sliding groove (22) and slides, the sliding direction of the clamping block (31) intersects with the axis of the positioning ring (2), and the end of the clamping block (31) close to the axis of the positioning ring (2) can abut against the outer wall of the spring.
3. The special-shaped spring end face polishing tool according to claim 2, characterized in that: The driving member (32) includes a plurality of push blocks (321) slidingly arranged in the positioning ring (2) and a connecting ring (322) connecting the push blocks (321), the positioning ring (2) is provided with a push groove (23) communicating with the sliding groove (22), the push block (321) is embedded in the push groove (23) and slides, the rotation axis of the push block (321) coincides with the axis of the positioning ring (2), the end of the clamping block (31) away from the axis of the positioning ring (2) is provided with a push inclined surface (311), the end of the push inclined surface (311) close to the push block (321) is inclined towards the axis direction of the positioning ring (2), the push block (321) can abut against the push inclined surface (311) and can abut against the end of the clamping block (31) away from the axis of the positioning ring (2).
4. The special-shaped spring end face polishing tool of claim 3, wherein: The upper end of the push block (321) is provided with a guide inclined surface (312), the end of the guide inclined surface (312) close to the axis of the positioning ring (2) is inclined downward, and the guide inclined surface (312) can abut against the lower end of the spring inserted into the positioning ring (2).
5. The special-shaped spring end face polishing tool of claim 3, wherein: The connecting ring (322) is sleeved outside the positioning ring (2), the connecting ring (322) is connected with the push block (321) through the connecting rod (33), and the upper end surface of the connecting ring (322) is flush with the upper end surface of the positioning ring (2).
6. The special-shaped spring end face polishing tool of claim 5, wherein: The outer wall of the connecting ring (322) is provided with an adjusting groove (323), the limiting bolt (34) is inserted into the adjusting groove (323), and the limiting bolt (34) is threadedly connected with the outer wall of the positioning ring (2).
7. The special-shaped spring end face polishing tool of claim 3, wherein: The outer wall of the connecting ring (322) is provided with a friction groove (324).
8. The special-shaped spring end face polishing tool of claim 2, wherein: The end surface of the clamping block (31) close to the axis of the positioning ring (2) is provided with an anti-skid coating (313).