Spring pitch adjusting device

By using a servo motor to drive the threaded rod and the scale bar, the spring pitch is automatically adjusted, solving the problems of high manpower consumption and low efficiency in manual adjustment in existing technologies, and achieving efficient pitch adjustment.

CN224058619UActive Publication Date: 2026-03-31SHENZHEN ZHAORI SPRING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-07
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing spring pitch adjustment devices rely on manual adjustment, which is labor-intensive and inefficient.

Method used

It uses a servo motor to drive the threaded rod and scale bar in conjunction with the fixing mechanism to automatically adjust the spring pitch, and achieves adjustment without manual intervention through the control panel.

Benefits of technology

The system achieves automated adjustment of spring pitch, improving production efficiency, reducing labor intensity, and ensuring the stability and safety of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of spring machining, in particular to a spring pitch adjusting device. The spring pitch adjusting device comprises a base, a fixed seat, an adjusting seat, a mounting seat, a threaded rod, a servo motor and the like, a fixing seat is arranged on the left side of the top of the base, fixing mechanisms are arranged in the fixing seat, a mounting seat is arranged on the right side of the top of the base, a threaded rod is arranged at the left end of the mounting seat, an adjusting seat is in threaded connection with the threaded rod, fixing mechanisms are arranged in the adjusting seat and the fixing seat, a servo motor is arranged on the right side of the mounting seat, and an output shaft of the servo motor is connected with the threaded rod. A control panel is arranged at the front end of the mounting seat. Due to the design of the control panel, the servo motor and the fixing mechanism, the distance adjusting operation can be completed without manual intervention, and the problems of low speed, low efficiency and high labor intensity in the manual adjusting process are solved.
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Description

Technical Field

[0001] This utility model relates to the field of spring processing technology, and in particular to a spring pitch adjustment device. Background Technology

[0002] A spring is a part made of elastic material that deforms under external force and returns to its original shape after the external force is removed. The spring pitch is the axial distance on the mean diameter of two adjacent coils of the spring, excluding the support coil. In daily use, its elasticity can be used to control the movement of machine parts, mitigate impacts or vibrations, store energy, and measure the magnitude of force. In the manufacturing process of compression springs, it is necessary to adjust the spring pitch.

[0003] Existing spring pitch adjustment devices typically require operators to manually adjust the spring pitch. The entire adjustment process relies on manual intervention, which not only consumes a lot of human resources but also limits production efficiency. Utility Model Content

[0004] To overcome the shortcomings of existing spring pitch adjustment devices that rely on manual adjustment, which is not only labor-intensive but also limits production efficiency, the technical problem to be solved is to provide a spring pitch adjustment device. The technical solution is: a spring pitch adjustment device, comprising a base, a fixed seat, an adjusting seat, a mounting seat, a threaded rod, a servo motor, a control panel, and a fixing mechanism. The fixed seat is located on the top left side of the base, and the mounting seat is located on the top right side of the base. A threaded rod is located at the left end of the mounting seat, and the adjusting seat is threadedly connected to the threaded rod. Both the adjusting seat and the fixed seat contain fixing mechanisms. A servo motor is located on the right side of the mounting seat, and the output shaft of the servo motor is connected to the threaded rod. A control panel is located at the front end of the mounting seat, and the control panel is electrically connected to the servo motor.

[0005] Furthermore, the fixing mechanism includes a fixing plate, a sliding rod, and a compression spring. The bottom inner sides of both the fixing seat and the adjusting seat are symmetrically provided with sliding rods. The fixing plate is slidably connected to the outside of the sliding rod, and a compression spring is provided on the outside of the sliding rod. The compression spring is connected between the bottom of the fixing plate and the bottom inner side of the fixing seat.

[0006] Furthermore, it also includes a guide rod, which is provided at the left end of the mounting base and passes through the adjusting base.

[0007] Furthermore, it also includes protrusions, with protrusions provided on the fixing plate.

[0008] Furthermore, it also includes scale bars, with several equidistant scale bars on the top of the base.

[0009] Furthermore, the fixing plate is made of polyurethane.

[0010] Furthermore, it also includes anti-slip pads, with anti-slip pads provided on the bottom of the base.

[0011] Furthermore, the anti-slip pad is made of rubber, and the bottom of the anti-slip pad has a textured design.

[0012] Furthermore, the inner surface of the top of both the fixed seat and the adjusting seat is frosted.

[0013] Furthermore, a grease layer is applied between the fixing plate and the slide rod.

[0014] The beneficial effects of this utility model are as follows: 1. The design of the control panel, servo motor and fixing mechanism of this utility model allows the operator to simply move the fixing plate downwards using the protrusion, and then place the spring to be tested above the fixing plate to complete the fixing of the spring to be tested. Then, the servo motor is controlled by the control panel to drive the adjustment seat to move, and the spring to be tested is adjusted to the required pitch length according to the value displayed on the scale bar. The pitch adjustment operation can be completed without manual intervention, which solves the problems of slow speed, low efficiency and high labor intensity in the manual adjustment process.

[0015] 2. The design of the anti-slip pad in this utility model increases the friction between the base and the contact surface, preventing the device from sliding or shifting during use, and ensuring the stability and safety of the device. The anti-slip pad is made of rubber and has a textured design on the bottom. The rubber material has good elasticity and anti-slip performance, while the textured design can effectively increase the surface roughness, so that the anti-slip pad can provide more stable support on various material surfaces, further enhancing the stability of the device.

[0016] 3. The design of the fixing plate, slide bar, and compression spring in this utility model allows the fixing plate to be moved downwards and the spring to be tested to be placed on the top surface of the fixing plate. The restoring force of the compression spring applies an upward force to the fixing plate, enabling the fixing plate to slide along the slide bar and clamp the spring to be tested, thereby quickly clamping the spring to be tested and improving work efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a structural schematic diagram of the fixing base and fixing plate of this utility model.

[0019] Figure 3 This is a schematic diagram of the slide bar and compression spring of this utility model.

[0020] Figure 4 This is a schematic diagram of the threaded rod and guide rod of this utility model.

[0021] Figure 5 This is a schematic diagram of the bottom structure of this utility model.

[0022] Reference numerals: 1_base, 2_fixed base, 3_adjusting base, 4_mounting base, 5_fixed plate, 51_protrusion, 6_slide rod, 7_compression spring, 8_threaded rod, 9_guide rod, 10_servo motor, 11_control panel, 12_scale bar, 13_anti-slip pad. Detailed Implementation

[0023] The present invention will now be described in detail with reference to the accompanying drawings.

[0024] A spring pitch adjustment device, such as Figures 1-4 As shown, it includes a base 1, a fixed seat 2, an adjusting seat 3, a mounting seat 4, a threaded rod 8, a servo motor 10, a control panel 11, and a fixing mechanism. The fixed seat 2 is located on the top left side of the base 1, and the mounting seat 4 is located on the top right side of the base 1. The threaded rod 8 is located at the left end of the mounting seat 4, and the adjusting seat 3 is threadedly connected to the threaded rod 8. The inner surfaces of the top of the fixed seat 2 and the adjusting seat 3 are both sanded to increase surface friction and strengthen the clamping of the spring to be tested. The adjusting seat 3 and the fixed seat 2 are both equipped with fixing mechanisms. The servo motor 10 is located on the right side of the mounting seat 4, and the output shaft of the servo motor 10 is connected to the threaded rod 8. The control panel 11 is located at the front end of the mounting seat 4, and the control panel 11 is electrically connected to the servo motor 10.

[0025] like Figure 4 As shown, the fixing mechanism includes a fixing plate 5, a sliding rod 6, and a compression spring 7. Sliding rods 6 are symmetrically arranged on the inner bottom sides of both the fixing seat 2 and the adjusting seat 3. The fixing plate 5 is slidably connected to the outer side of the sliding rod 6. The fixing plate 5 is made of polyurethane, which is soft and has good wear resistance, preventing wear on the outer surface of the spring under test during the testing process and effectively protecting the spring. A grease layer is applied between the fixing plate 5 and the sliding rod 6. This grease layer reduces frictional resistance, allowing the fixing plate 5 to slide more smoothly on the sliding rod 6, while also reducing wear and extending the lifespan of the fixing plate 5. The slide bar 6 has a service life. A compression spring 7 is provided on the outside of the slide bar 6. The compression spring 7 is connected between the bottom of the fixed plate 5 and the inner side of the bottom of the fixed seat 2. Applying downward pressure to the two fixed plates 5 will drive the fixed plates 5 to move downward. The compression spring 7 is compressed, which increases the distance between the fixed plate 5 on the fixed seat 2 and the inner side wall of the top of the fixed seat 2, and also increases the distance between the fixed plate 5 on the adjusting seat 3 and the inner side wall of the top of the adjusting seat 3. The operator will insert the two ends of the spring to be tested into the fixing mechanism respectively, loosen the protrusion 51, and the compression spring 7 will reset to clamp the two ends of the spring to be tested.

[0026] like Figure 4As shown, it also includes a guide rod 9. The left end of the mounting base 4 is provided with a guide rod 9, which passes through the adjusting base 3, ensuring that the adjusting base 3 moves along a predetermined path during the movement process, thereby enhancing the stability of the adjusting base 3.

[0027] like Figure 3 As shown, it also includes a protrusion 51. The fixed plate 5 is provided with a protrusion 51, which facilitates the operator to move the fixed plate 5.

[0028] like Figure 4 As shown, it also includes a scale bar 12. The top of the base 1 is provided with several equidistant scale bars 12, which makes it easy for the operator to read the values ​​displayed on the scale bar 12 and adjust the spring to be tested to the required pitch length.

[0029] like Figure 5 As shown, it also includes an anti-slip pad 13. The base 1 has an anti-slip pad 13 at the bottom. The anti-slip pad 13 can increase the friction between the base 1 and the contact surface, prevent the device from sliding or shifting during use, and ensure the stability and safety of the device. The anti-slip pad 13 is made of rubber and has a textured design at the bottom. The rubber material has good elasticity and anti-slip performance, while the textured design can effectively increase the surface roughness, so that the anti-slip pad 13 can provide more stable support on various material surfaces, further enhancing the stability of the device.

[0030] During use, the operator can press down on the two protrusions 51, which will cause the fixing plate 5 to move downward along the slide rod 6. The compression spring 7 is compressed, increasing the distance between the fixing plate 5 on the fixing seat 2 and the inner side wall of the top of the fixing seat 2, and increasing the distance between the fixing plate 5 on the adjusting seat 3 and the inner side wall of the top of the adjusting seat 3. The operator can then insert both ends of the spring to be tested into the fixing mechanism, release the protrusions 51, and the compression spring 7 will return to its original position to clamp both ends of the spring to be tested. This simplifies the installation process of the spring to be tested and ensures the stability of the clamping. When adjusting the pitch, the operator can start the servo motor 10 through the control panel 11. The servo motor 10 drives the threaded rod 8 to rotate, which in turn moves the adjusting seat 3 to the right, causing the other end of the spring to be tested to extend. The operator can then adjust the spring to the required pitch length according to the value displayed on the scale bar 12. This eliminates the need for manual pitch adjustment, solving the problems of slow speed, low efficiency, and high labor intensity associated with manual operation.

[0031] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A spring pitch adjustment device, characterized by The utility model relates to a height adjustable platform, which comprises a base (1), a fixed seat (2), an adjusting seat (3), a mounting seat (4), a threaded rod (8), a servo motor (10), a control panel (11) and a fixing mechanism, the left top of the base (1) is provided with the fixed seat (2), the right top of the base (1) is provided with the mounting seat (4), the left end of the mounting seat (4) is provided with the threaded rod (8), the threaded rod (8) is threadedly connected with the adjusting seat (3), the adjusting seat (3) and the fixed seat (2) are both provided with the fixing mechanism, the right side of the mounting seat (4) is provided with the servo motor (10), the output shaft of the servo motor (10) is connected with the threaded rod (8), the front end of the mounting seat (4) is provided with the control panel (11), and the control panel (11) is electrically connected with the servo motor (10).

2. A spring pitch adjusting device according to claim 1, wherein The fixing mechanism comprises a fixed plate (5), a sliding rod (6) and a compression spring (7), the bottom inner sides of the fixed seat (2) and the adjusting seat (3) are both provided with the sliding rod (6) in a front-rear symmetrical mode, the outer side of the sliding rod (6) is slidably connected with the fixed plate (5), the outer side of the sliding rod (6) is provided with the compression spring (7), and the compression spring (7) is connected between the bottom of the fixed plate (5) and the bottom inner side of the fixed seat (2).

3. A spring pitch adjusting device according to claim 2, wherein The utility model also comprises a guide rod (9), the left end of the mounting seat (4) is provided with the guide rod (9), and the guide rod (9) penetrates the adjusting seat (3).

4. A spring pitch adjusting device according to claim 3, wherein The utility model also comprises a protruding block (51), the fixed plate (5) is provided with the protruding block (51).

5. A spring pitch adjusting device according to claim 4, wherein The utility model also comprises a scale bar (12), the top of the base (1) is provided with a plurality of equidistant scale bars (12).

6. A spring pitch adjusting device according to claim 5, wherein The fixed plate (5) is made of polyurethane material.

7. A spring pitch adjusting device according to claim 6, wherein The utility model also comprises an anti-skid pad (13), the bottom of the base (1) is provided with the anti-skid pad (13).

8. A spring pitch adjusting device according to claim 7, wherein The anti-skid pad (13) is made of rubber material, and the bottom of the anti-skid pad (13) is provided with a texture design.

9. A spring pitch adjusting device according to claim 8, wherein The inner side surfaces of the top of the fixed seat (2) and the adjusting seat (3) are both subjected to sanding treatment.

10. A spring pitch adjusting device according to claim 9, wherein A layer of lubricating grease is coated between the fixed plate (5) and the sliding rod (6).