Adjustable clamping mechanism for jewelry processing

Abstract

The utility model discloses an adjustable clamping mechanism for jewelry processing, which belongs to the technical field of jewelry processing, and comprises a mounting seat and two oppositely arranged clamping jaws on the mounting seat, one clamping jaw is fixedly mounted as a fixed jaw, and the other clamping jaw is slidably mounted as a movable jaw. A mounting cavity is formed in the movable claw, a movable rod is arranged on the movable claw in the mounting cavity, the middle section of the movable rod is rotationally connected with the movable claw, a movable clamping plate is arranged at the clamping end of the movable claw, the movable clamping plate is fixedly connected with a driving rod, and the driving rod extends into the mounting cavity and abuts against one end of the movable rod. According to the adjustable clamping mechanism for jewelry processing, when the clamping force exceeds a certain degree, the end of the movable rod and the through hole are staggered, the positioning pin is inserted into the positioning hole in the mounting base to achieve positioning, and the situation that the movable claw continues to move, so that clamping pressure is too large, and jewelry is deformed or damaged is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of jewelry processing, and in particular relates to an adjustable clamping mechanism for jewelry processing. Background Art

[0002] Jewelry processing is a process of transforming raw gemstones or metals into exquisite jewelry through a series of fine craftsmanship and technology. This process requires high professional skills and rich experience, including design, cutting, grinding, polishing, setting and other steps. Jewelers use clever techniques and superb skills to turn raw materials into jewelry full of artistic sense and unique charm. This process not only demonstrates the skills and creativity of the processor, but also gives the jewelry unique value and meaning.

[0003] During the jewelry processing process, an adjustable clamping mechanism is generally provided to clamp the jewelry, so that the processor can control the processing equipment with both hands for processing. However, the adjustable clamping mechanism in the prior art generally clamps jewelry of different diameters and widths by adjusting the distance between the clamping jaws. However, it is difficult to control the clamping force during the adjustment process, especially after the clamping jaws come into contact with the jewelry. If the clamping is stopped too early, the jewelry will be easy to loosen during processing. If the clamping is stopped too late, the rigid structure of the clamping jaw will apply too much force to the jewelry, causing the jewelry to deform and damage. The clamping process is difficult to adjust, which affects the efficiency of jewelry processing.

[0004] Therefore, we propose an adjustable clamping mechanism for jewelry processing to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem that the clamping force is difficult to control during the adjustment process of the adjustable clamping mechanism in the prior art and the clamping force adjustment process is time-consuming, and proposes an adjustable clamping mechanism for jewelry processing.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The movable claw is provided with a mounting cavity, and the movable claw is provided with a movable rod in the mounting cavity, and the middle section of the movable rod is rotatably connected with the movable claw. The clamping claw comprises a clamping end and a mounting end, and the clamping end of the movable claw is provided with a movable splint, and the movable splint is fixedly connected with a driving rod, and the driving rod is slidably connected with the clamping end of the movable claw, and the driving rod extends into the mounting cavity and contacts with one end of the movable rod. A spring is provided at one end of the movable rod close to the movable rod, and a positioning pin is provided just above the other end of the movable rod. A through hole matching the positioning pin is provided on the movable claw, and the positioning pin is inserted into the through hole and contacts with the movable rod. A plurality of positioning holes arranged along a linear array are provided on the mounting seat, and the positioning holes are arranged along the movable route of the movable claw, and the mounting end of the movable claw is connected with an auxiliary positioning member.

[0008] Preferably, a plurality of limit bars are fixedly connected to the outer periphery of the driving rod, and the plurality of limit bars are arranged along the axial direction of the driving rod. A connecting hole matching the driving rod is opened at the clamping end of the movable claw, and the driving rod is inserted into the connecting hole and slidably connected with the movable claw.

[0009] Preferably, the driving rod is located in the installation cavity and is fixedly connected to a blocking block, and the cross-section of the blocking block is larger than the connecting hole.

[0010] Preferably, the auxiliary positioning member includes a limit bracket fixedly connected to one side of the movable claw mounting end, the mounting seat side is fixedly connected to a limit plate, the limit plate is horizontally arranged, and the end of the limit bracket is located below the limit plate and is slidably connected to the limit plate.

[0011] Preferably, an auxiliary positioning bolt is threadedly connected to the limiting bracket, and the lower end of the auxiliary positioning bolt passes through the limiting bracket and contacts the upper surface of the limiting plate.

[0012] Preferably, a limiting groove is provided on the mounting seat, the limiting groove is perpendicular to the plane of the clamping end of the movable claw, the mounting end of the movable claw is located in the limiting groove and is fixedly connected with a sliding block, and the sliding block is located in the limiting groove and is slidably connected to the mounting seat.

[0013] Preferably, a sleeve is fixedly connected above the movable claw, the sleeve is sleeved on the positioning pin, and the positioning pin passes through the sleeve and is inserted into the through hole.

[0014] To sum up, the technical effects and advantages of the utility model are as follows: the adjustable clamping mechanism for jewelry processing is provided with a movable claw slidably connected to the mounting seat. When the movable claw is close to the fixed claw, the jewelry can be clamped by the clamping ends of the two. As the clamping force increases, the driving rod slowly contacts the end of the movable rod to rotate its end and compress the spring. When the clamping force exceeds a certain level, the other end of the movable rod is misaligned with the through hole, and the positioning pin slides along the through hole through the mounting end of the movable claw and is inserted into the positioning hole on the mounting seat to achieve positioning. At this time, the movable claw is difficult to move, thereby avoiding the movable claw continuing to move and causing excessive clamping pressure to cause deformation or damage to the jewelry, affecting the effect of jewelry processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 Partial cutaway view of the utility model Figure 1 ;

[0017] Figure 3 Partial cutaway view of the utility model Figure 2 ;

[0018] Figure 4 It is a schematic diagram of the structure of the movable splint and the movable rod of the utility model.

[0019] In the figure: 1. mounting seat; 2. fixed claw; 3. movable claw; 4. mounting cavity; 5. movable rod; 6. movable splint; 7. driving rod; 8. spring; 9. positioning pin; 10. through hole; 11. positioning hole; 12. limiting strip; 13. connecting hole; 14. blocking block; 15. limiting bracket; 16. limiting plate; 17. auxiliary positioning bolt; 18. limiting groove; 19. slider; 20. sleeve. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] Reference Figures 1 to 4An adjustable clamping mechanism for jewelry processing includes a mounting seat 1 and two clamping claws arranged opposite to each other on the mounting seat 1. The clamping claws include a clamping end and a mounting end. When the two clamping claws are close to each other, the jewelry is clamped. One of the clamping claw mounting ends is fixedly connected to the mounting seat 1 as a fixed claw 2, and the other clamping claw mounting end is slidably connected to the mounting seat 1 as a movable claw 3. A limiting groove 18 is provided on the mounting seat 1. The limiting groove 18 is perpendicular to the clamping end plane of the movable claw 3. The mounting end of the movable claw 3 is located in the limiting groove 18 and is fixedly connected with a slider 19. The slider 19 is located in the limiting groove 18 and is slidably connected to the mounting seat 1. The limiting groove 18 limits the slider 19 so that the slider 19 moves along the direction of the limiting groove 18, so that the movable claw 3 slides along the limiting groove 18 to approach or move away from the fixed claw 2, thereby achieving clamping and release.

[0023] The movable claw 3 has a mounting cavity 4 formed inside, and a movable rod 5 is provided in the mounting cavity 4 of the movable claw 3. The two ends of the movable rod 5 are respectively located in the clamping end and the mounting end of the movable claw 3. The middle section of the movable rod 5 is rotatably connected with the movable claw 3 through a ball bearing to reduce the resistance of the movable rod 5 when rotating. The two ends of the movable rod 5 can be rotatably connected around the ball bearing. The clamping end of the movable claw 3 is provided with a movable splint 6, and the movable splint 6 is parallel to the clamping plane of the clamping end of the movable claw 3. When clamping, the movable splint 6 cooperates with the clamping end of the fixed claw 2 to clamp the two sides of the jewelry.

[0024] The movable splint 6 is fixedly connected with a driving rod 7, which is perpendicular to the clamping plane of the movable claw 3. The driving rod 7 is slidably connected to the clamping end of the movable claw 3. The driving rod 7 extends into the installation cavity 4 and contacts one end of the movable rod 5. When the outer side of the movable splint 6 is squeezed, the driving rod 7 extends into the installation cavity 4 and contacts the movable rod 5 to drive the movable rod 5 to rotate. A spring 8 is provided at one end of the movable rod 5 close to the movable rod 5. When the spring 8 is in a normal state, the driving rod 7 extends outward, and the movable splint 6 is a certain distance away from the clamping plane of the movable frame. When the movable splint 6 is squeezed and the driving rod 7 contacts the movable rod 5, the spring 8 is deformed. The state of the movable rod 5 when the spring 8 is in a normal state is recorded as the initial state, and the state of the movable rod 5 after the spring 8 is compressed to the limit and the movable rod 5 is rotated a certain angle is recorded as the misaligned state.

[0025] The movable claw 3 is provided with a through hole 10 adapted to the positioning pin 9. The through hole 10 is also vertically arranged to be connected with the mounting cavity 4 and penetrate the mounting end of the movable claw 3. The positioning pin 9 is inserted into the through hole 10 and contacts the upper side of the end of the movable rod 5 when the movable rod 5 is in the initial state. A sleeve 20 is fixedly connected above the movable claw 3. The sleeve 20 is sleeved on the positioning pin 9. The positioning pin 9 passes through the sleeve 20 and is inserted into the through hole 10. The sleeve 20 limits and fixes the positioning pin 9 to keep it vertical. A plurality of positioning holes 11 arranged along a linear array are provided on the mounting seat 1. The positioning holes 11 are located below the through hole 10. The positioning holes 11 are arranged along the movable route of the movable claw 3. When the movable rod 5 is in a dislocated state, the positioning pin 9 passes through the mounting end of the movable claw 3 from the through hole 10 and is inserted into the positioning hole 11 to limit the movable claw 3 so that it cannot move anymore. When the movable claw 3 needs to be moved again, the positioning pin 9 can be pulled out.

[0026] Specifically, the outer periphery of the driving rod 7 is fixedly connected with a plurality of limit strips 12, and the plurality of limit strips 12 are arranged along the axial direction of the driving rod 7. The limit strips 12 make the outer periphery of the driving rod 7 irregularly shaped. The clamping end of the movable claw 3 is provided with a connection hole 13 adapted to the driving rod 7. The driving rod 7 is inserted into the connection hole 13 and slidably connected with the movable claw 3. The connection hole 13 limits the rotation of the driving rod 7, so that the movable splint 6 does not rotate when sliding. The driving rod 7 is located in the installation cavity 4 and is fixedly connected with a blocking block 14. The cross section of the blocking block 14 is larger than the connecting hole 13. When the driving rod 7 extends to a certain position outside the installation cavity 4, the blocking block 14 contacts the movable claw 3, thereby limiting the driving rod 7 from being separated from the connecting hole 13.

[0027] Furthermore, an auxiliary positioning member is connected to the mounting end of the movable claw 3, and the auxiliary positioning member includes a limit bracket 15 fixedly connected to one side of the mounting end of the movable claw 3. The limit bracket 15 is C-shaped, and the upper end of the limit bracket 15 is fixedly connected to the mounting end of the movable claw 3. A limit plate 16 is fixedly connected to the side of the mounting seat 1. The limit plate 16 is horizontally arranged, and the lower end of the limit bracket 15 is located below the limit plate 16 and is slidably connected to the limit plate 16. The limit plate 16 conflicts with the limit bracket 15 and limits the rotation of the limit bracket 15 around the horizontal axis, thereby limiting the mounting end of the movable claw 3 and preventing the movable claw 3 from rotating. An auxiliary positioning bolt 17 is threadedly connected to the limiting bracket 15, and the lower end of the auxiliary positioning bolt 17 passes through the limiting bracket 15 and contacts the upper surface of the limiting plate 16. The auxiliary positioning bolt 17 is rotated so that its end presses against the upper surface of the limiting plate 16 to increase the friction between it and the limiting plate 16, thereby increasing the friction when the movable claw 3 moves, thereby improving the fixing effect of the movable claw 3 and ensuring the stability of the movable claw 3 during the clamping process.

[0028] Working principle: The movable claw 3 is slidably connected to the mounting seat 1. When the movable claw 3 is close to the fixed claw 2, the jewelry can be clamped by the clamping ends of the two. As the clamping force increases, the jewelry squeezes the movable splint 6 so that the movable splint 6 is close to the clamping end of the movable claw 3. At this time, the driving rod 7 slowly contacts the end of the movable rod 5 to rotate its end and compress the spring 8. When the clamping force exceeds a certain level, the movable rod 5 rotates to a dislocated state. At this time, the end of the movable rod 5 close to the mounting end of the movable claw 3 is dislocated with the through hole 10. The positioning pin 9 slides along the through hole 10 through the mounting end of the movable claw 3 and is inserted into the positioning hole 11 on the mounting seat 1 to achieve positioning. At the same time, the auxiliary positioning bolt 17 is rotated to make its end press against the upper surface of the limit plate 16, thereby further improving the fixed positioning effect of the movable claw 3 and preventing the movable claw 3 from continuing to move and causing excessive clamping pressure to cause deformation or damage to the jewelry.

[0029] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An adjustable clamping mechanism for jewelry processing, comprising a mounting seat (1) and two clamping claws arranged opposite to each other on the mounting seat (1), wherein one of the clamping claws is fixedly installed as a fixed claw (2), and the other of the clamping claws is slidably installed as a movable claw (3), characterized in that: The movable claw (3) is provided with a mounting cavity (4) inside, and a movable rod (5) is provided inside the movable claw (3) in the mounting cavity (4). The middle section of the movable rod (5) is rotatably connected to the movable claw (3). The clamping claw comprises a clamping end and a mounting end. The clamping end of the movable claw (3) is provided with a movable clamping plate (6). The movable clamping plate (6) is fixedly connected with a driving rod (7). The driving rod (7) is slidably connected to the clamping end of the movable claw (3). The driving rod (7) extends into the mounting cavity (4) and contacts one end of the movable rod (5). The movable rod (5) is provided with a spring (8) at one end close to the movable rod (5), and a positioning pin (9) is provided just above the other end of the movable rod (5). The movable claw (3) is provided with a through hole (10) adapted to the positioning pin (9), and the positioning pin (9) is inserted into the through hole (10) to contact the movable rod (5). The mounting seat (1) is provided with a plurality of positioning holes (11) arranged along a linear array, and the positioning holes (11) are arranged along the movable route of the movable claw (3). The mounting end of the movable claw (3) is connected to an auxiliary positioning member.

2. The adjustable clamping mechanism for jewelry processing according to claim 1, characterized in that: The outer periphery of the driving rod (7) is fixedly connected with a plurality of limit strips (12), and the plurality of limit strips (12) are arranged along the axial direction of the driving rod (7). The clamping end of the movable claw (3) is provided with a connecting hole (13) adapted to the driving rod (7), and the driving rod (7) is inserted into the connecting hole (13) and slidably connected with the movable claw (3).

3. The adjustable clamping mechanism for jewelry processing according to claim 2, characterized in that: The driving rod (7) is located in the installation cavity (4) and is fixedly connected to a blocking block (14), wherein the cross section of the blocking block (14) is larger than the connecting hole (13).

4. The adjustable clamping mechanism for jewelry processing according to claim 1, characterized in that: The auxiliary positioning member comprises a limit bracket (15) fixedly connected to one side of the mounting end of the movable claw (3); a limit plate (16) is fixedly connected to the side of the mounting seat (1); the limit plate (16) is arranged horizontally; and the end of the limit bracket (15) is located below the limit plate (16) and is slidably connected to the limit plate (16).

5. The adjustable clamping mechanism for jewelry processing according to claim 4, characterized in that: An auxiliary positioning bolt (17) is threadedly connected to the limiting bracket (15), and the lower end of the auxiliary positioning bolt (17) passes through the limiting bracket (15) and contacts the upper surface of the limiting plate (16).

6. The adjustable clamping mechanism for jewelry processing according to claim 1, characterized in that: The mounting seat (1) is provided with a limiting groove (18), the limiting groove (18) being perpendicular to the clamping end plane of the movable claw (3), the mounting end of the movable claw (3) being located in the limiting groove (18) and being fixedly connected with a sliding block (19), and the sliding block (19) being located in the limiting groove (18) and being slidably connected with the mounting seat (1).

7. The adjustable clamping mechanism for jewelry processing according to claim 1, characterized in that: A sleeve (20) is fixedly connected to the upper side of the movable claw (3); the sleeve (20) is sleeved on the positioning pin (9); and the positioning pin (9) passes through the sleeve (20) and is inserted into the through hole (10).

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