Multi-directional positioning and clamping device for preventing deformation in vacuum quenching of spring

Abstract

The utility model discloses a spring vacuum quenching anti-deformation multidirectional positioning clamping device which comprises a clamping base, an opening is formed in the clamping base, a clamping plate is connected in the opening in a sliding mode, a limiting rod is fixedly connected in the clamping base, an adjusting fluted disc is rotatably connected in the clamping base, the limiting rod is of a T-shaped structure, and the adjusting fluted disc is connected with the clamping plate in a sliding mode. A through hole is formed in the outer wall of the limiting rod, a sliding rod is inserted into the through hole, one end of the sliding rod is fixedly connected with a limiting plate, the other end of the sliding rod is in transmission connection with a second adjusting rod, the second adjusting rod is located in the limiting rod, the top end of the second adjusting rod is located on the top side of the limiting rod, and the outer wall of the limiting rod is sleeved with a to-be-treated spring. Limiting plates are supported on the inner walls of the to-be-treated springs, and the clamping plates are located on the outer walls of the to-be-treated According to the device, the change of thermal expansion and cold contraction in the treatment process of the to-be-treated spring can be adapted while stable clamping of the to-be-treated spring is achieved, and the clamping stability of the to-be-treated spring and the treatment quality of the to-be-treated spring are improved.

Description

Technical Field

[0001] This utility model relates to the field of spring manufacturing technology, specifically a multi-directional positioning and clamping device for vacuum quenching and deformation prevention of springs. Background Technology

[0002] A spring is a mechanical part that works by utilizing elasticity. They are usually made of spring steel, a material that can return to its original shape after deformation. Springs are used in a variety of applications to store energy, absorb shocks and vibrations, apply force, or control motion. The manufacturing of springs includes processes such as material selection, heat treatment, surface treatment, forming, processing, and testing.

[0003] When springs are quenched, they undergo a process of rapid cooling after being heated to a high temperature. During the spring processing, clamps are needed to hold the springs. However, temperature changes can cause the springs to deform. At the same time, the change from high temperature to low temperature will cause the springs to expand and contract due to thermal expansion. Existing clamps cannot ensure the stability of the springs while adapting to the changes in thermal expansion and contraction. Therefore, improvements are needed. Utility Model Content

[0004] The purpose of this invention is to provide a multi-directional positioning clamping device for vacuum quenching and deformation prevention of springs, so as to solve the problem mentioned in the background art that springs cannot adapt to changes in thermal expansion and contraction during clamping.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a multi-directional positioning clamping device for vacuum quenching and deformation prevention of springs, comprising a clamping base, an opening on the clamping base, a clamping plate slidably connected inside the opening, a limiting rod fixedly connected inside the clamping base, the limiting rod having a "T" shaped structure, a through hole on the outer wall of the limiting rod, a sliding rod inserted inside the through hole, a limiting plate fixedly connected to one end of the sliding rod, and a second adjusting rod tractively connected to the other end of the sliding rod, the second adjusting rod being located inside the limiting rod, the top end of the second adjusting rod being located on the top side of the limiting rod, a spring to be processed being sleeved on the outer wall of the limiting rod, the limiting plate being supported on the inner wall of the spring to be processed, and the clamping plate being located on the outer wall of the spring to be processed.

[0006] Preferably, an adjusting gear is rotatably connected inside the clamping base. A first adjusting gear is provided on one side of the adjusting gear, and an adjusting spiral rail is provided on the other side of the adjusting gear. The first adjusting gear is meshed with the teeth on one side of the adjusting gear.

[0007] Preferably, the bottom of the first adjusting gear is connected to a first adjusting rod, and one end of the first adjusting rod passes through the limiting rod and is located outside the limiting rod.

[0008] Preferably, an adjusting rack is fixedly connected to the other end of the slide rod, and a second adjusting gear is provided at one end of the adjusting rack.

[0009] Preferably, one end of the second adjusting rod is connected to a second adjusting gear, which meshes with the adjusting rack.

[0010] Preferably, the slide rod and the limiting rod are slidably connected, and multiple slide rods are distributed at equal intervals in a circular pattern about the outer wall of the limiting rod, with the slide rods corresponding to the positions of the clamping plate.

[0011] Preferably, the clamping plate has an "L" shaped structure, and the bottom of the clamping plate is provided with a toothed groove, which matches the adjusting spiral rail structure.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) This device can achieve stable clamping of the spring to be processed while adapting to the changes in thermal expansion and contraction during the processing of the spring to be processed, thereby improving the stability of the clamping of the spring to be processed and the processing quality of the spring to be processed.

[0014] (2) This device provides a slidingly adjustable limiting plate on the limiting rod of the clamping base. The limiting plate can support the inner side of the spring to be processed, thereby ensuring the stability of the position of the spring to be processed during the heating process. At the same time, the clamping plate on the clamping base is slidably adjustable. The clamping plate is located on the outer side of the spring to be processed, with a certain gap from the spring to be processed. After the spring to be processed is heated and expanded, it can play a fitting and limiting role for the spring to be processed. Thus, while achieving stable clamping of the spring to be processed, it adapts to the thermal expansion and contraction of the spring to be processed, thereby improving the processing quality of the spring to be processed.

[0015] (3) This device connects a second adjusting rod inside the limiting rod. The top of the second adjusting rod is convenient for workers to rotate with tools. The lower end of the second adjusting rod is connected to the slide rod, thereby realizing the adjustment of the position of the slide rod and the limiting plate. This facilitates the separation of the limiting plate from the spring to be processed and avoids the deformation caused by the spring shrinking and contacting the limiting plate during quenching. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a multi-directional positioning and clamping device for preventing deformation of springs under vacuum quenching according to this utility model.

[0017] Figure 2 This is a top view of the clamping base of a multi-directional positioning clamping device for vacuum quenching and deformation prevention of springs according to this utility model;

[0018] Figure 3 This is a top sectional view of the clamping base of a multi-directional positioning clamping device for vacuum quenching and deformation prevention of springs according to this utility model.

[0019] Figure 4 This is a rear view of the adjusting gear plate of a multi-directional positioning clamping device for vacuum quenching and deformation prevention of springs according to this utility model.

[0020] Figure 5 This is a cross-sectional view of the connection between the second adjusting rod and the limiting plate of a multi-directional positioning clamping device for vacuum quenching and deformation prevention of springs according to this utility model.

[0021] Figure 6 This utility model relates to a multi-directional positioning and clamping device for preventing deformation during spring vacuum quenching. Figure 1 Enlarged view of point A in the middle.

[0022] In the diagram: 1. Clamping base; 2. First adjusting rod; 3. Limiting rod; 4. Spring to be processed; 5. Clamping plate; 6. Limiting plate; 7. Slide rod; 8. Adjusting spiral rail; 9. Adjusting gear plate; 10. First adjusting gear; 11. Second adjusting rod; 12. Second adjusting gear; 13. Adjusting rack. 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] Please see Figure 1-6This utility model provides a technical solution: a multi-directional positioning clamping device for vacuum quenching and deformation prevention of springs, including a clamping base 1, an opening on the clamping base 1, a clamping plate 5 slidably connected inside the opening, a limit rod 3 fixedly connected inside the clamping base 1, an adjusting gear 9 rotatably connected inside the clamping base 1, a first adjusting gear 10 provided on one side of the adjusting gear 9, the first adjusting gear 10 meshing with the teeth on one side of the adjusting gear 9, this structure can drive the adjusting spiral rail 8 to rotate by the rotation of the adjusting gear 9, an adjusting spiral rail 8 provided on the other side of the adjusting gear 9, a first adjusting rod 2 connected to the bottom of the first adjusting gear 10, the first adjusting rod 2 connected to the clamping base 1 by a bearing, one end of the first adjusting rod 2 passing through the limit rod 3. On the outside of the limiting rod 3, this structure can drive the first adjusting gear 10 to rotate by rotating the first adjusting rod 2, so that the first adjusting gear 10 pushes the adjusting gear disk 9 to rotate during the rotation. The limiting rod 3 has a "T" shaped structure, and a through hole is opened on the outer wall of the limiting rod 3. A sliding rod 7 is inserted into the through hole. The other end of the sliding rod 7 is fixedly connected to the adjusting rack 13. A second adjusting gear 12 is provided at one end of the adjusting rack 13. One end of the second adjusting rod 11 is connected to the second adjusting gear 12. The top end of the second adjusting rod 11 is connected to the outer wall of the limiting rod 3 through a bearing. The second adjusting gear 12 is meshed with the adjusting rack 13. This structure can drive the second adjusting gear 12 to rotate by rotating the second adjusting rod 11, thereby utilizing the second adjusting gear 12. Rotation drives the adjusting rack 13, slide rod 7, and limiting plate 6 to achieve linear movement. The slide rod 7 and the limiting rod 3 form a sliding connection. Multiple slide rods 7 are evenly distributed in a ring shape around the outer wall of the limiting rod 3. The slide rods 7 correspond to the position of the clamping plate 5, thus ensuring the balance of clamping. This structure can improve the stability of the movement of the limiting plate 6 through the sliding of the slide rod 7. By setting the limiting rod 3, it is convenient to set the second adjusting rod 11 and adjusting rack 13 and other accessories inside the limiting rod 3 on the clamping base 1. One end of the slide rod 7 is fixedly connected to the limiting plate 6, and the other end of the slide rod 7 is drivenly connected to the second adjusting rod 11. The second adjusting rod 11 is located inside the limiting rod 3, and the top of the second adjusting rod 11 is located on the top side of the limiting rod 3. The outer wall of the limiting rod 3 is fitted with the spring to be processed. Spring 4, the inner wall of the spring to be treated 4 is supported by a limiting plate 6, and clamping plate 5 is located on the outer wall of the spring to be treated 4. Before quenching, the spring to be treated 4 needs to be heated. At this time, the limiting plate 6 achieves stable clamping of the spring to be treated 4 by adhering to the inner side of the spring to be treated 4, while clamping plate 5 is located on the outer side of the spring to be treated 4 with a certain gap. This gap is adjusted during production according to the expansion dimensions of the material of the spring to be treated 4. Before the spring to be treated 4 cools, the second adjusting rod 11 and the limiting plate 6 are manually adjusted to leave a gap between the limiting plate 6 and the spring to be treated 4. The gap is calculated based on the stress released during cooling of the spring to be treated 4. During the cooling process, clamping plate 5 adheres to the outer side of the spring to be treated 4 to ensure its stability.After the spring 4 cools and contracts, its inner side contacts the limiting plate 6. The clamping plate 5 has an "L"-shaped structure, and its bottom is provided with a toothed groove that matches the structure of the adjusting spiral rail 8. This structure, through the rotation of the adjusting gear plate 9, can drive the adjusting spiral rail 8 on the adjusting gear plate 9 to rotate, thereby causing the clamping plate 5 on the adjusting spiral rail 8 to move linearly, making it easy for the clamping plate 5 to move closer to or away from the spring 4. The ends of the first adjusting rod 2 and the second adjusting rod 11 are adapted to adjusting wrenches for convenient rotational operation.

[0025] Working principle: When using this multi-directional positioning clamping device for vacuum quenching and anti-deformation of springs, firstly, the spring 4 to be processed is fitted onto the outer wall of the limiting rod 3. Then, a wrench is inserted into the top of the second adjusting rod 11 and rotated. During the rotation of the second adjusting rod 11, it drives the second adjusting gear 12 to push the adjusting rack 13 to move, thereby realizing the lateral movement of the slide rod 7 and the limiting plate 6, so that the limiting plate 6 moves linearly and fits against the inner wall of the spring 4 to be processed. Then, a wrench is inserted into the first adjusting rod 2 and rotated. The rotation of the first adjusting rod 2 drives the first adjusting gear 10, the adjusting gear plate 9, and the adjusting spiral rail 8 to rotate, adjusting the spiral rail... When the rail 8 rotates, it drives the clamping plate 5 to move linearly, so that the clamping plate 5 moves to a suitable position. Then, the spring 4 to be processed is placed in the heating equipment for heating. After heating, the outer wall of the spring 4 to be processed adheres to the inner side of the clamping plate 5 under the action of thermal expansion and contraction. After heating is completed, a wrench is inserted into the top of the second adjusting rod 11 and rotated. During the rotation, the second adjusting rod 11 drives the second adjusting gear 12 to push the adjusting rack 13 to move, thereby realizing the lateral movement of the slide rod 7 and the limiting plate 6, so that the limiting plate 6 moves linearly to the calculated contraction position. Then, the spring 4 to be processed is placed in the vacuum quenching furnace for quenching treatment.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-directional positioning clamping device for preventing deformation during vacuum quenching of springs, comprising a clamping base (1), characterized in that: An opening is provided on the clamping base (1), and a clamping plate (5) is slidably connected inside the opening. A limiting rod (3) is fixedly connected inside the clamping base (1). The limiting rod (3) has a "T" shaped structure. A through hole is provided on the outer wall of the limiting rod (3). A sliding rod (7) is inserted inside the through hole. One end of the sliding rod (7) is fixedly connected to a limiting plate (6). The other end of the sliding rod (7) is connected to a second adjusting rod (11). The second adjusting rod (11) is located inside the limiting rod (3). The top end of the second adjusting rod (11) is located on the top side of the limiting rod (3). A spring (4) to be processed is sleeved on the outer wall of the limiting rod (3). The inner wall of the spring (4) to be processed supports the limiting plate (6). The clamping plate (5) is located on the outer wall of the spring (4) to be processed.

2. The multi-directional positioning and clamping device for preventing deformation during spring vacuum quenching according to claim 1, characterized in that: The clamping base (1) is rotatably connected to an adjusting gear disk (9). A first adjusting gear (10) is provided on one side of the adjusting gear disk (9), and an adjusting spiral rail (8) is provided on the other side of the adjusting gear disk (9). The first adjusting gear (10) is meshed with one side of the adjusting gear disk (9).

3. A multi-directional positioning and clamping device for preventing deformation during spring vacuum quenching according to claim 2, characterized in that: The first adjusting gear (10) is connected to the bottom of the first adjusting rod (2), and one end of the first adjusting rod (2) passes through the limiting rod (3) and is located outside the limiting rod (3).

4. The multi-directional positioning and clamping device for preventing deformation during spring vacuum quenching according to claim 1, characterized in that: The other end of the slide bar (7) is fixedly connected to an adjusting rack (13), and one end of the adjusting rack (13) is provided with a second adjusting gear (12).

5. A multi-directional positioning and clamping device for preventing deformation during spring vacuum quenching according to claim 1, characterized in that: One end of the second adjusting rod (11) is connected to a second adjusting gear (12), which meshes with the adjusting rack (13).

6. A multi-directional positioning and clamping device for preventing deformation during spring vacuum quenching according to claim 1, characterized in that: The slide rod (7) and the limiting rod (3) form a sliding connection. Multiple slide rods (7) are distributed in a circular pattern at equal intervals about the outer wall of the limiting rod (3). The slide rods (7) and the clamping plate (5) are positioned opposite each other.

7. A multi-directional positioning and clamping device for preventing deformation during spring vacuum quenching according to claim 2, characterized in that: The clamp (5) has an "L" shaped structure and a toothed groove is provided at the bottom of the clamp (5). The toothed groove matches the structure of the adjusting spiral rail (8).

Images