Clamping device of spiral compression eccentric spring

Abstract

The utility model relates to the technical field of springs, and discloses a spiral compression eccentric spring clamping device which comprises a base, a support is fixedly connected to the upper surface of the base, a lifting arm is arranged on one side of the support, and fixing seats are fixedly connected to the end, away from the support, of the lifting arm and the upper surface of the base. According to the clamping device for the spiral compression eccentric spring, a screw rod is rotated to drive a threaded pipe to move in the opposite direction, a connecting plate is promoted to drive a positioning plate to move, retract and release, then the top ends and the bottoms of springs of different sizes can be clamped and positioned, and the positioning stability of the springs and the practicability of the device are improved; when a gear column rotates, a gear ring is driven to rotate, a spring can be integrally driven to rotate, deformation and falling off of the spring in the rotating process are avoided, the stability in the positioning process is further improved, and the problems that an existing spring clamp is low in spring positioning stability, the spring is prone to falling off, springs of different sizes are inconvenient to position, and the positioning precision is high are solved. And the practicability is low.

Description

Technical Field

[0001] This application relates to the field of spring technology, specifically to a clamping device for a helical compression eccentric spring. Background Technology

[0002] A spring is a mechanical part that works by utilizing elasticity. A part made of elastic material deforms under the action of external force and returns to its original shape after the external force is removed. It is generally made of spring steel.

[0003] An existing patent (publication number: CN 216542841U) discloses an eccentric spring clip, including a base plate, a support seat, a base, an upper fixing member, a lower fixing member, and a measuring mechanism. The base plate is located at the lower end of the device; the base is mounted on the support seat on the left side; the upper fixing member is movable on the base; the lower fixing member is mounted on the base plate; and the measuring mechanism is mounted on the support seat on the right side. In use, the slider is moved up and down by rotating the handle to match the distance between the two clamps with the length of the eccentric spring. Tightening the set screw on the slider locks the slider onto the base. Starting the motor causes the upper fixing member to rotate, thereby flipping the spring and enabling multi-directional measurement of the spring. A set knob is provided at the rear end of the slider. Tightening the set knob fixes the height of the slider. At this time, rotating the round rod on the threaded seat makes the front end of the round rod contact the measured position and take the reading. The operation is convenient, and there is no shaking after fixing, resulting in more accurate measurement.

[0004] The above-mentioned device only positions the spring through the round hole on the clamp, which is relatively simple. However, the spring positioning stability is poor. When the spring rotates, only the top end is subjected to force, and it is prone to deformation and falling off during the rotation process. At the same time, it is not convenient to perform positioning and testing on springs of different sizes, and its practicality is low. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a clamping device for a helical compression eccentric spring. This device can clamp and position the top and bottom of the spring, improving its positioning stability. It can also drive the spring to rotate as a whole, preventing deformation and detachment during rotation. Furthermore, it can clamp and position springs of different sizes, improving the device's practicality. This solves the problems of existing devices that rely solely on holes in the clamps for spring positioning, resulting in poor spring positioning stability. During rotation, only the top of the spring is subjected to force, making it prone to deformation and detachment. Additionally, it is inconvenient for positioning and detecting springs of different sizes, leading to low practicality.

[0006] To achieve the above objectives, this application provides the following technical solution: a clamping device for a helical compression eccentric spring, comprising a base, a bracket fixedly connected to the upper surface of the base, a lifting arm provided on one side of the bracket, a fixed seat fixedly connected to the end of the lifting arm away from the bracket and the upper surface of the base, a rotating shaft rotatably connected inside the fixed seat, a positioning seat fixedly connected to one end of the rotating shaft, a lead screw rotatably connected inside the positioning seat, two threaded tubes threadedly connected inside the lead screw, a connecting plate fixedly connected to the outer circumferential surface of each threaded tube, a positioning plate fixedly connected to one end of the connecting plate, a gear ring fixedly sleeved on the outer circumferential surface of the positioning seat, a gear column rotatably connected to the upper surface of the base, the gear ring meshing with the gear column, and a measuring mechanism provided on the upper surface of the base.

[0007] The existing device, which only positions the spring through a circular hole in the clamp, is relatively simple and has poor spring positioning stability. When the spring rotates, only the top end is stressed, making it prone to deformation and detachment. Furthermore, it is inconvenient to position and test springs of different sizes, resulting in low practicality. By rotating the lead screw to move the threaded tube in the opposite direction, the connecting plate moves and retracts the positioning plate, thus enabling the clamping and positioning of springs of different sizes at both the top and bottom. This improves the stability of spring positioning and the practicality of the device. The rotation of the gear column drives the gear ring to rotate, allowing the entire spring to rotate, preventing deformation and detachment during rotation and further enhancing the stability of the positioning process.

[0008] Furthermore, a control rod is rotatably connected to the top of the bracket, and the outer circumferential surface of the control rod is threadedly connected to the inside of the lifting arm.

[0009] The above scheme allows the rotatable control lever to drive the lifting arm to rise and fall, thereby raising and lowering the positioning seat at the top. The height of the positioning seat at the top is adjusted according to the length of the spring, thus completing the positioning operation of the spring.

[0010] Furthermore, a first limiting ring is fixedly sleeved on the outer circumferential surface of the control rod, and the outer circumferential surface of the first limiting ring is rotatably connected to the inside of the bracket.

[0011] The above method restricts the control lever, preventing longitudinal sliding and improving the stability of its movement.

[0012] Furthermore, two collars are fixedly connected to the outer surface of the lifting arm, and two columns are fixedly connected to one side of the bracket. The inner wall of the collar is slidably sleeved with the outer circumferential surface of the column.

[0013] The above scheme restricts the lifting arm, causing it to always move vertically, thereby improving the stability of the lifting arm and the top positioning seat.

[0014] Furthermore, two second limiting rings are fixedly sleeved on the outer circumferential surface of the lead screw, and the outer circumferential surface of the second limiting rings is rotatably connected to the interior of the positioning seat.

[0015] The above method restricts the lead screw and prevents it from slipping or deviating.

[0016] Furthermore, the positioning plate is arc-shaped, and an anti-slip pad is fixedly connected to the inner wall of the positioning plate.

[0017] Through the above scheme, the arc design of the positioning plate can better adapt to the contour of the spring, improve the clamping effect, and the anti-slip pad can closely fit the surface of the spring to prevent the spring from sliding or deforming during clamping, thereby improving the stability of spring positioning.

[0018] Furthermore, the lead screw is a bidirectional lead screw.

[0019] The above scheme enables the threaded tube to move in opposite directions, thereby allowing the positioning plate to move and retract, and clamping and positioning springs of different sizes.

[0020] Furthermore, a limiting groove is formed inside the positioning seat, and the outer surface of the connecting plate is slidably connected to the positioning seat through the limiting groove.

[0021] The above method restricts the threaded tube, preventing it from rotating with the lead screw, and ensures that the positioning plate always moves laterally with the connecting plate.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This clamping device for a spiral compression eccentric spring moves the threaded tube in the opposite direction by rotating the lead screw, causing the connecting plate to move and retract the positioning plate. This allows for clamping and positioning of the top and bottom of springs of different sizes, improving the stability of spring positioning and the practicality of the device. When the gear column rotates, it drives the gear ring to rotate, which in turn drives the spring to rotate as a whole, preventing deformation and detachment during spring rotation. This further improves the stability of the positioning process and solves the problems of existing spring clamps having low stability in spring positioning, easy spring detachment, and inconvenience in positioning springs of different sizes, resulting in low practicality. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0025] Figure 2 This is a partial cross-sectional front view of the structure of this application;

[0026] Figure 3This is a top view of the overall structure of this application;

[0027] Figure 4 This is a structural diagram of the positioning seat in this application.

[0028] In the picture:

[0029] 1. Base; 2. Bracket; 3. Lifting arm; 4. Fixed seat; 5. Rotating shaft; 6. Positioning seat; 7. Lead screw; 8. Threaded tube; 9. Connecting plate; 10. Positioning plate; 11. Gear ring; 12. Gear column; 13. Control rod; 14. First limit ring; 15. Collar; 16. Column; 17. Second limit ring; 18. Anti-slip pad; 19. Limiting groove; 20. Measuring mechanism. Detailed Implementation

[0030] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] Please see Figure 1 , Figure 3 and Figure 4 This embodiment of a clamping device for a helical compression eccentric spring includes a base 1, a bracket 2 fixedly connected to the upper surface of the base 1, a lifting arm 3 on one side of the bracket 2, a fixed seat 4 fixedly connected to the end of the lifting arm 3 away from the bracket 2 and the upper surface of the base 1, a rotating shaft 5 rotatably connected inside the fixed seat 4, a positioning seat 6 fixedly connected to one end of the rotating shaft 5, a lead screw 7 rotatably connected inside the positioning seat 6, two threaded tubes 8 threadedly connected inside the lead screw 7, a connecting plate 9 fixedly connected to the outer circumference of each threaded tube 8, a positioning plate 10 fixedly connected to one end of the connecting plate 9, a gear ring 11 fixedly sleeved on the outer circumference of the positioning seat 6, a gear column 12 rotatably connected to the upper surface of the base 1, the gear ring 11 meshing with the gear column 12, and a measuring mechanism 20 provided on the upper surface of the base 1.

[0032] Please see Figure 1 and Figure 2 The top of the bracket 2 is rotatably connected to a control rod 13. The outer circumferential surface of the control rod 13 is connected to the internal thread of the lifting arm 3. The control rod 13 can be rotated to drive the lifting arm 3 to rise and fall, thereby raising and lowering the positioning seat 6 at the top. The height of the positioning seat 6 at the top is adjusted according to the length of the spring, thereby completing the positioning operation of the spring.

[0033] Please see Figure 2A first limiting ring 14 is fixedly sleeved on the outer circumferential surface of the control rod 13. The outer circumferential surface of the first limiting ring 14 is rotatably connected to the inside of the bracket 2 to restrict the control rod 13, prevent the control rod 13 from sliding longitudinally, and improve the stability of the movement of the control rod 13.

[0034] Please see Figure 1 and Figure 3 Two collars 15 are fixedly connected to the outer surface of the lifting arm 3, and two columns 16 are fixedly connected to one side of the bracket 2. The inner wall of the collar 15 is slidably sleeved with the outer circumferential surface of the column 16 to restrict the lifting arm 3, so that the lifting arm 3 always moves vertically, thereby improving the stability of the movement of the lifting arm 3 and the top positioning seat 6.

[0035] Please see Figure 4 Two second limiting rings 17 are fixedly sleeved on the outer circumferential surface of the lead screw 7. The outer circumferential surface of the second limiting rings 17 is rotatably connected to the inside of the positioning seat 6 to restrict the lead screw 7 and prevent the lead screw 7 from sliding off.

[0036] Please see Figure 1 and Figure 4 The positioning plate 10 is arc-shaped, and an anti-slip pad 18 is fixedly connected to the inner wall of the positioning plate 10. The arc-shaped design of the positioning plate 10 can better adapt to the contour of the spring and improve the clamping effect. The anti-slip pad 18 can closely fit the surface of the spring to prevent the spring from sliding or deforming during clamping and improve the stability of spring positioning.

[0037] Please see Figure 4 The lead screw 7 is a bidirectional lead screw, which causes the threaded tube 8 to move in the opposite direction, thereby causing the positioning plate 10 to move and retract, and clamping and positioning springs of different sizes.

[0038] Please see Figure 1 and Figure 4 The positioning seat 6 has a limiting groove 19 inside. The outer surface of the connecting plate 9 is slidably connected to the positioning seat 6 through the limiting groove 19 to restrict the threaded tube 8 and prevent the threaded tube 8 from rotating with the screw 7, so that the positioning plate 10 always moves laterally with the connecting plate 9.

[0039] This embodiment provides a clamping device for a helical compression eccentric spring. By rotating the lead screw 7, the threaded tube 8 moves in the opposite direction, causing the connecting plate 9 to move and retract the positioning plate 10. This allows for clamping and positioning of the top and bottom of springs of different sizes, improving the stability of spring positioning and the practicality of the device. When the gear column 12 rotates, it drives the gear ring 11 to rotate, which in turn drives the spring to rotate as a whole, preventing deformation and detachment during spring rotation. This further improves the stability of the positioning process and solves the problems of existing spring clamps having low stability in spring positioning, easy spring detachment, and inconvenience in positioning springs of different sizes, resulting in low practicality.

[0040] It should be noted that the base 1 is equipped with a motor, the output shaft of which passes through the base 1 and is fixedly connected to the bottom of the gear column 12 to provide rotational power for the gear column 12. The two positioning seats 6 are symmetrically arranged.

[0041] The working principle of the above embodiments is as follows:

[0042] When clamping and positioning testing of the spring is required, the spring is placed on the bottom positioning seat 6. Rotating the lead screw 7 on the bottom positioning seat 6 moves the threaded tube 8 inward. The threaded tube 8 moves the positioning plate 10 inward through the connecting plate 9. The positioning plate 10 clamps and positions the spring against the bottom of the leaf spring. Then, rotating the control lever 13 moves the top fixed seat 4 down through the lifting arm 3. The fixed seat 4 moves the top positioning seat 6 down through the rotating shaft 5, so that the top positioning seat 6 contacts the top of the spring. Then, rotating the lead screw 7 on the top positioning seat 6 causes the top positioning plate 10 to clamp and position the top of the spring. The spring positioning operation is then completed. The spring can be tested using the measuring mechanism 20 on one side. When the spring needs to be rotated, the motor at the bottom of the gear column 12 is started. The motor drives the gear column 12 to rotate through the output shaft. The gear column 12 drives the upper and lower positioning seats 6 to rotate simultaneously through the gear ring 11, thereby driving the spring to rotate as a whole, realizing multi-directional measurement of the spring.

[0043] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0044] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A clamping device for a helical compression eccentric spring, comprising a base (1), characterized in that: A bracket (2) is fixedly connected to the upper surface of the base (1). A lifting arm (3) is provided on one side of the bracket (2). A fixed seat (4) is fixedly connected to the end of the lifting arm (3) away from the bracket (2) and the upper surface of the base (1). A rotating shaft (5) is rotatably connected inside the fixed seat (4). A positioning seat (6) is fixedly connected to one end of the rotating shaft (5). A lead screw (7) is rotatably connected inside the positioning seat (6). Two threaded tubes (8) are threaded inside the lead screw (7). A connecting plate (9) is fixedly connected to the outer circumference of each threaded tube (8). A positioning plate (10) is fixedly connected to one end of the connecting plate (9). A gear ring (11) is fixedly sleeved on the outer circumference of the positioning seat (6). A gear column (12) is rotatably connected to the upper surface of the base (1). The gear ring (11) meshes with the gear column (12). A measuring mechanism (20) is provided on the upper surface of the base (1).

2. The clamping device for a helical compression eccentric spring according to claim 1, characterized in that: The top of the bracket (2) is rotatably connected to a control rod (13), and the outer circumferential surface of the control rod (13) is threadedly connected to the inside of the lifting arm (3).

3. The clamping device for a helical compression eccentric spring according to claim 2, characterized in that: The outer circumferential surface of the control rod (13) is fixedly sleeved with a first limiting ring (14), and the outer circumferential surface of the first limiting ring (14) is rotatably connected to the inside of the bracket (2).

4. The clamping device for a helical compression eccentric spring according to claim 1, characterized in that: Two collars (15) are fixedly connected to the outer surface of the lifting arm (3), and two columns (16) are fixedly connected to one side of the bracket (2). The inner wall of the collar (15) is slidably sleeved with the outer circumferential surface of the column (16).

5. The clamping device for a helical compression eccentric spring according to claim 1, characterized in that: Two second limiting rings (17) are fixedly sleeved on the outer circumferential surface of the lead screw (7), and the outer circumferential surface of the second limiting rings (17) is rotatably connected to the inside of the positioning seat (6).

6. The clamping device for a helical compression eccentric spring according to claim 1, characterized in that: The positioning plate (10) is arc-shaped, and an anti-slip pad (18) is fixedly connected to the inner wall of the positioning plate (10).

7. The clamping device for a helical compression eccentric spring according to claim 1, characterized in that: The lead screw (7) is a bidirectional lead screw.

8. The clamping device for a helical compression eccentric spring according to claim 1, characterized in that: The positioning seat (6) has a limiting groove (19) inside, and the outer surface of the connecting plate (9) is slidably connected to the positioning seat (6) through the limiting groove (19).

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