Bolt clamping mechanism
By designing a bolt clamping mechanism and utilizing the matching of spherical convex and concave surfaces and a locking device, the problems of workpiece surface damage and movement during bolt clamping are solved, and stable clamping and anti-slip effects of the workpiece are achieved.
Patent Information
- Application Number
- CN202422671381.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-04
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-04
AI Technical Summary
Ordinary bolts can easily damage the workpiece surface and cause movement when clamping the workpiece, and are prone to sliding during the flipping process.
A bolt clamping mechanism is designed, including a fixing part, a tightening bolt, a tightening block, a semicircular retaining ring and a fixing sleeve. The cooperation of the spherical convex and concave surfaces and the locking device ensure that the tightening block does not rotate with the workpiece during rotation, and the limiting of the semicircular retaining ring and the fixing sleeve enables quick and reliable installation.
Effectively prevent workpiece surface damage and movement, ensuring the stability and reliability of the clamping process.
Smart Images
Figure CN223369224U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clamping tooling, and more specifically, to a bolt clamping mechanism. Background Art
[0002] When ordinary bolts are clamped on a workpiece, the bottom of the bolt and the workpiece rotate relative to each other, which can easily damage the workpiece surface. Friction between the bolt and the workpiece surface can also cause the workpiece to move during clamping. Furthermore, during use and flipping, the bolt and workpiece can easily slip.
[0003] Therefore, it is necessary to improve the existing technology. Utility Model Content
[0004] In order to overcome the deficiencies in the prior art, a workpiece bolt clamping mechanism is provided that is not easily damaged.
[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:
[0006] A bolt clamping mechanism includes a fixing piece, a tightening bolt, a tightening block, a semicircular clamping ring and a fixing sleeve. The fixing piece is provided with a threaded hole. The tightening bolt is threadedly connected to the fixing piece. The lower portion of the tightening bolt passes through the fixing piece and is provided with an annular groove. Two semicircular clamping rings are provided. The two semicircular clamping rings are symmetrically arranged on both sides of the tightening bolt and clamped in the annular groove.
[0007] The fixing sleeve is arranged on the tightening bolt, and the fixing sleeve is provided with a stepped through hole along the axial direction. The small hole section of the fixing sleeve cooperates with the tightening bolt, and the semicircular clamping ring is located in the large hole section of the fixing sleeve and contacts the shaft shoulder of the stepped through hole for limiting position;
[0008] The lower end of the tightening bolt is a spherical convex surface, and the upper end of the tightening block is provided with a spherical concave surface that cooperates with the spherical convex surface. The tightening block is arranged at the lower end of the tightening bolt and slidably cooperates with the large hole section of the fixing sleeve, and a locking device is provided between the tightening block and the fixing sleeve.
[0009] Preferably, the locking device includes a hexagon socket flat-end set screw, a threaded through hole is provided on the side wall of the fixing sleeve, and the hexagon socket flat-end set screw is threadedly connected in the threaded through hole and presses against the tightening block.
[0010] Preferably, a positioning hole or a positioning ring having the same height as the hexagon socket flat-end set screw is provided on the side surface of the tightening block.
[0011] Preferably, the fixing member is a nut, and the lower end of the tightening block is provided with an anti-slip groove.
[0012] Preferably, it further includes a clamping seat, a transverse opening for placing a workpiece is provided on one side of the clamping seat, a mounting hole is provided on the upper side of the transverse opening, the nut is fixedly arranged in the mounting hole, and the tightening block extends into the transverse opening.
[0013] Preferably, the nut is detachably connected to the mounting hole.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] 1. The utility model provides a tightening block. When the tightening bolt is rotated, the tightening block is pressed against the workpiece and does not rotate relative to the workpiece, which can prevent damage to the workpiece surface and prevent the workpiece from moving. The tightening block is provided with an anti-slip groove to prevent the workpiece and the bolt from sliding relative to each other during the turning process.
[0016] 2. The utility model limits the tightening block by cooperating with the semicircular clamping ring and the fixing sleeve, thereby realizing fast and reliable installation of the tightening block. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The specific implementation of the present invention will be further described in detail below with reference to the accompanying drawings.
[0018] Figure 1 This is a schematic diagram of the structure of the utility model;
[0019] Figure 2 Schematic diagram of the positioning sleeve structure;
[0020] Figure 3 This is a schematic diagram of the utility model in use.
[0021] In the figure: 1-fixing part, 11-annular groove, 2-tensioning bolt, 3-tensioning block, 31-positioning hole, 4-semicircular retaining ring, 5-fixing sleeve, 51-step through hole, 6-hexagon socket flat-end set screw, 7-clamping seat, 71-transverse opening, 72-mounting hole, 8-workpiece. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] like Figures 1 to 3As shown, a bolt clamping mechanism includes a fixing part 1, a tightening bolt 2, a tightening block 3, a semicircular retaining ring 4 and a fixing sleeve 5. The fixing part 1 is provided with a threaded hole. Preferably, the fixing part 1 is a nut, and the tightening bolt 2 is threadedly connected to the fixing part 1. The relative position of the tightening bolt 2 and the fixing part 1 can be adjusted by rotating the tightening bolt 2.
[0024] The lower part of the jacking bolt 2 passes through the fixing part 1 and is provided with an annular groove 21. Two semicircular snap rings 4 are provided. The two semicircular snap rings 4 are symmetrically arranged on both sides of the jacking bolt 2 and clamped in the annular groove 21. The fixing sleeve 5 is sleeved on the jacking bolt 2. The fixing sleeve 5 is axially provided with a stepped through hole 51. The small hole section of the fixing sleeve 5 is sleeved on the outside of the jacking bolt 2. The semicircular snap ring 4 is located in the large hole section of the fixing sleeve 5. The semicircular snap ring 4 contacts the shoulder of the stepped through hole 51 to achieve axial limitation of the fixing sleeve 5. The lower end of the jacking bolt 2 is a spherical convex surface, and the upper end of the jacking block 3 is provided with a spherical concave surface that cooperates with the spherical convex surface, so that the jacking block 3 and the jacking bolt 2 rotate relative to each other, thereby ensuring that the jacking block 3 can remain stationary when the jacking bolt 2 rotates relative to the workpiece 8.
[0025] The tightening block 3 is arranged at the lower end of the tightening bolt 2 and slides with the large hole section of the fixing sleeve 5. A locking device is provided between the tightening block 3 and the fixing sleeve 5. The fixing sleeve 5 is used to limit the axial position of the tightening block 3. An anti-slip groove is provided at the lower end of the tightening block 3.
[0026] Preferably, the locking device can be a hexagon socket flat-point set screw 6. A threaded through hole is provided on the side wall of the fixing sleeve 5. The hexagon socket flat-point set screw 6 is threadedly connected in the threaded through hole and pressed against the tightening block 3. In order to ensure the locking effect, a positioning hole 31 or a positioning ring can be provided on the side of the tightening block 3 at the same height as the hexagon socket flat-point set screw 6.
[0027] Preferably, Figure 3 As shown, it also includes a clamping seat 7, a transverse opening 71 for placing the workpiece 8 is provided on one side of the clamping seat 7, a mounting hole 72 is provided on the upper side of the transverse opening 71, a nut is fixedly set in the mounting hole 72, the upper end of the tightening bolt extends out of the clamping seat 7, the tightening block 3 extends into the transverse opening 71, and the nut is detachably connected to the mounting hole 72.
[0028] The above only describes in detail the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by ordinary technicians in this field, various changes can be made without departing from the purpose of the present invention, and various changes should be included in the scope of protection of the present invention.
Claims
1. A bolt clamping mechanism, characterized in that: It comprises a fixing member (1), a tightening bolt (2), a tightening block (3), a semicircular snap ring (4) and a fixing sleeve (5), wherein the fixing member (1) is provided with a threaded hole, the tightening bolt (2) is threadedly connected to the fixing member (1), the lower portion of the tightening bolt (2) passes through the fixing member (1) and is provided with an annular groove (21), and two semicircular snap rings (4) are provided, and the two semicircular snap rings (4) are symmetrically arranged on both sides of the tightening bolt (2) and clamped in the annular groove (21); The fixing sleeve (5) is sleeved on the jacking bolt (2), and the fixing sleeve (5) is provided with a stepped through hole (51) along the axial direction. The small hole section of the fixing sleeve (5) cooperates with the jacking bolt (2), and the semicircular retaining ring (4) is located in the large hole section of the fixing sleeve (5) and contacts the shaft shoulder of the stepped through hole (51) for limiting position. The lower end of the tightening bolt (2) is a spherical convex surface, and the upper end of the tightening block (3) is provided with a spherical concave surface that cooperates with the spherical convex surface. The tightening block (3) is arranged at the lower end of the tightening bolt (2) and is slidably matched with the large hole section of the fixing sleeve (5). A locking device is provided between the tightening block (3) and the fixing sleeve (5).
2. A bolt clamping mechanism according to claim 1, characterized in that: The locking device comprises a hexagon socket flat-end set screw (6), a threaded through hole is provided on the side wall of the fixing sleeve (5), and the hexagon socket flat-end set screw (6) is threadedly connected in the threaded through hole and pressed against the tightening block (3).
3. A bolt clamping mechanism according to claim 2, characterized in that: A positioning hole (31) or a positioning ring having the same height as the hexagon socket flat-end set screw (6) is provided on the side of the tightening block (3).
4. The bolt clamping mechanism according to claim 1, characterized in that: The fixing member (1) is a nut, and the lower end of the tightening block (3) is provided with an anti-slip groove.
5. The bolt clamping mechanism according to claim 4, characterized in that: It also includes a clamping seat (7), a transverse opening (71) for placing a workpiece (8) is provided on one side of the clamping seat (7), a mounting hole (72) is provided on the upper side of the transverse opening (71), the nut is fixedly arranged in the mounting hole (72), and the tightening block (3) extends into the transverse opening (71).
6. The bolt clamping mechanism according to claim 5, characterized in that: The nut is detachably connected to the mounting hole (72).