Spring end surface grinding equipment and processing technology thereof

Abstract

The present application discloses a spring end surface grinding device and a processing technology thereof, which relates to the technical field of spring processing equipment, and comprises a frame, a turning frame rotatably provided on the frame, a clamping sleeve fixedly provided on the turning frame, a pre-fixing module for pre-fixing the spring to be ground and a clamping mechanism for clamping the spring to be ground provided in the clamping sleeve, a lifting frame slidably provided on the frame in a vertical direction, a positioning assembly for positioning the spring to be ground provided on the lifting frame, a movable frame slidably provided on the lifting frame in a horizontal direction, a polishing device for polishing the spring end surface provided on the movable frame. The present application realizes the automatic flipping of the spring end surface during the polishing process, significantly improves the processing efficiency, and ensures the precision of the polishing of the spring end surface.

Description

Technical Field

[0001] The present application relates to the technical field of spring processing equipment, and in particular to a spring end surface grinding device and a processing technology thereof. Background Art

[0002] Springs are widely used elastic elements in mechanical structures, and their performance directly affects the stability and lifespan of mechanical equipment. The quality of the spring's end surfaces has a significant impact on its performance, especially in high-precision mechanical equipment. The flatness of the spring end surfaces determines the contact area with the support surface and the uniformity of the force applied.

[0003] At present, the spring end faces are mainly polished by two methods: manual polishing and mechanical polishing. Manual polishing is simple to operate and low in cost. Operators usually use sandpaper or a grinding wheel to manually process the spring end faces. The disadvantages are low efficiency, poor precision, and difficulty in ensuring consistency. Mechanical polishing uses special polishing equipment to process the spring end faces. Although it improves efficiency and precision, when the existing mechanical polishing equipment is used to polish the spring end faces, after one end face of the spring is polished, it is necessary to stop the machine and disassemble the spring, flip it over, and then re-clamp it before the other end face can be polished. The spring flipping operation is cumbersome and time-consuming, which seriously affects the overall processing efficiency and cannot meet the requirements of efficient and automated processing in modern production. Therefore, how to achieve efficient polishing of the two end faces of the spring has become a technical problem that needs to be solved urgently in the current industry. Summary of the Invention

[0004] In response to the problems existing in the prior art, the present application provides a spring end face grinding device and a processing technology thereof.

[0005] In the first aspect, the present application provides a spring end surface grinding device, which adopts the following technical solution:

[0006] A spring end surface grinding device comprises a frame, a turning frame is rotatably provided on the frame, a servo motor for driving the turning frame to rotate is provided on the frame, a clamping sleeve is fixedly provided on the turning frame, a pre-fixing module for pre-fixing the spring to be ground and a clamping mechanism for clamping the spring to be ground are provided in the clamping sleeve, a lifting frame is provided on the frame for sliding in a vertical direction, a hydraulic cylinder for driving the lifting frame to slide is provided on the frame, a positioning assembly for positioning the spring to be ground is provided on the lifting frame, a moving frame is provided on the lifting frame for sliding in a horizontal direction, a servo cylinder for driving the moving frame to slide is provided on the lifting frame, and a grinding device for grinding the spring end surface is provided on the moving frame.

[0007] Optionally, the clamping mechanism includes a clamping block and a driving assembly, and the inner side wall of the clamping sleeve is provided with a plurality of connecting ports, each of the connecting ports is evenly spaced along the circumference of the clamping sleeve, and the clamping block is slidingly arranged in each of the connecting ports, and the clamping block slides in a direction close to or away from the central axis of the clamping sleeve, and the driving assembly is used to drive each clamping block to slide and clamp the spring to be polished.

[0008] Optionally, the driving assembly includes a limiting sleeve and a pushing cylinder, the limiting sleeve is slidably mounted on the clamping sleeve, a plurality of sliding grooves are opened in the limiting sleeve along the axial direction of the limiting sleeve, the sliding grooves correspond to the clamping blocks one by one, and the clamping blocks are passed through the corresponding sliding grooves, the side walls of the sliding grooves are provided with guide slopes, and the guide slopes are used to guide the corresponding clamping blocks to slide toward the direction close to the central axis of the clamping sleeve, and the pushing cylinder is used to drive the limiting sleeve to slide.

[0009] Optionally, the pre-fixing module includes a plurality of elastic pressure plates installed in the clamping sleeve, one end of the elastic pressure plate is fixed on the inner wall of the clamping sleeve, and the other end is suspended, the elastic pressure plate corresponds one-to-one to the connection port, and the elastic pressure plate cover is arranged at the corresponding connection port position, and the clamping block is used to abut the elastic pressure plate.

[0010] Optionally, the elastic pressure plate includes a first guide sliding section, a second guide sliding section and a clamping section, the first guide sliding section and the second guide sliding section are respectively arranged on both sides of the clamping section, the first guide sliding section is fixedly connected to the inner wall of the clamping sleeve, the clamping section and the second guide sliding section are both suspended, and the first guide sliding section and the second guide sliding section are both used to guide the spring to be polished into the clamping section, and the clamping block is used to abut the clamping section.

[0011] Optionally, the end surfaces of the clamping sections of the elastic pressure plates that are close to each other are all configured to be wavy.

[0012] Optionally, a pressure bearing plate is provided on the guiding inclined surface, a pressure sensor is provided on the pressure bearing plate, the pressure sensor is electrically connected to a controller, and the controller is electrically connected to the push cylinder.

[0013] Optionally, the positioning assembly includes a positioning frame, a positioning plate and a rodless cylinder. The positioning frame is slidably arranged on the lifting frame in the vertical direction. The rodless cylinder is used to drive the positioning frame to slide. The positioning plate is installed on the positioning frame to resist the spring to be polished and push the spring to be polished to slide.

[0014] Optionally, the positioning plate is slidably arranged on the positioning frame along the vertical direction, and the positioning frame is provided with an adjusting member for adjusting the position of the positioning plate.

[0015] In a second aspect, the present application provides a processing technology for a spring end surface grinding device, which adopts the following technical solution:

[0016] A processing technology for a spring end surface grinding device comprises the following steps:

[0017] S1. Place the spring to be polished into the clamping sleeve and pre-fix the spring using the pre-fixing module;

[0018] S2. Start the hydraulic cylinder to move the lifting frame and the grinding device down to the working height. Use the positioning assembly to position the spring so that the end surface of the spring to be ground is accurately aligned with the position of the grinding device. Then, use the clamping mechanism to clamp the spring into the clamping sleeve.

[0019] S3, driving the movable frame to slide by the servo cylinder, and at the same time, starting the grinding device to grind the end surface of the spring;

[0020] S4. After the end surface of the spring is polished, the lifting frame is raised to provide enough space for the spring to flip. The servo motor drives the flip frame to rotate 180 degrees, driving the spring to flip 180 degrees.

[0021] S5. Release the clamping mechanism on the spring, drive the lifting frame downward again, reposition the spring through the positioning assembly, and then fix the spring with the clamping mechanism again;

[0022] S6. The movable frame is driven to slide again, and the other end surface of the spring is polished by the polishing device.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. This application realizes the automatic flipping of the spring end face during the grinding process, which significantly improves the processing efficiency and ensures the accuracy of the grinding of the spring end face; specifically, through the cooperation of the flip frame and the servo motor, the flipping operation of the spring can be completed without stopping the machine, avoiding the tedious operations of manual disassembly and flipping required in the traditional method, and greatly improving the processing efficiency; through the mutual cooperation of the pre-fixed module and the positioning component, the end face of the spring can be accurately adjusted to the ideal position before grinding, and then the stability of the spring during the grinding process is ensured by the setting of the clamping mechanism, thereby effectively ensuring the accuracy and quality of the grinding of the spring end face. The overall solution effectively solves the problems of low efficiency and poor consistency in traditional manual or mechanical grinding, and provides reliable technical support for high-precision spring end face processing.

[0025] 2. This application forms a certain elastic deformation capability by making the pre-fixing module consist of multiple elastic pressure plates, with one end of the elastic pressure plate fixed to the inner wall of the clamping sleeve and the other end suspended in the air. When the spring is loaded into the clamping sleeve, the elastic pressure plate automatically fits the outer surface of the spring, providing preliminary positioning and support for the spring to be polished, thus preventing the spring from deflecting or falling in the clamping sleeve. In addition, the elastic pressure plate corresponds to the connection port one by one and is covered at the connection port position, which can also provide a stable transition state for the subsequent abutment of the clamping block, ensuring that the clamping mechanism can more accurately and reliably complete the further clamping operation of the spring.

[0026] 3. This application achieves precise control of the clamping force through the provision of a pressure bearing plate, effectively avoiding problems such as spring deformation due to excessive clamping force or spring slippage due to insufficient clamping force. Specifically, the pressure sensor can monitor the pressure value on the pressure bearing plate in real time and transmit the data to the controller. The controller accurately adjusts the thrust of the push cylinder based on the pressure value, thereby ensuring that the clamping force of the clamp on the spring always remains within an appropriate range. This precise force feedback mechanism not only improves the stability of spring clamping, but also enhances the reliability and consistency of the entire grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0028] Figure 2 This is a cross-sectional view of the structure of the positioning frame used in the embodiment of the present application;

[0029] Figure 3 This is a cross-sectional view of the structure of the clamping sleeve used in the embodiment of the present application, mainly used to express the internal structure of the clamping sleeve;

[0030] Figure 4 It is a structural cross-sectional view used to express the clamping sleeve in the embodiment of the present application, and is mainly used to express the distribution of the clamping block and the elastic pressure plate in the clamping sleeve.

[0031] Explanation of the accompanying drawings: 1. Frame; 11. Servo motor; 12. Hydraulic cylinder; 2. Turning frame; 3. Lifting frame; 31. Moving frame; 32. Servo cylinder; 33. Positioning frame; 331. Adjusting screw; 34. Positioning plate; 341. Sleeve; 35. Rodless cylinder; 4. Clamping sleeve; 41. Clamping block; 42. Connecting port; 43. Limiting sleeve; 431. Slide groove; 432. Guide slope; 433. Pressure bearing plate; 434. Pressure sensor; 44. Push cylinder; 45. Elastic pressure plate; 451. First guide slide section; 452. Second guide slide section; 453. Clamping section; 5. Grinding device. DETAILED DESCRIPTION

[0032] The following will be combined with the Figure 1 -Attached Figure 4 The technical solutions in the embodiments of the present invention are clearly and completely described. The described embodiments are only possible technical implementations of the present invention and do not constitute a complete set of implementations. Those skilled in the art can combine the embodiments of the present invention to derive other embodiments without inventive work, and such embodiments are also within the scope of protection of the present invention.

[0033] The inventors of this application have discovered that the existing spring end surface grinding mainly adopts two methods: manual grinding and mechanical grinding. Manual grinding has low efficiency, poor precision, and it is difficult to ensure consistency. Although mechanical grinding improves efficiency and precision, when the existing mechanical grinding equipment is used to grind the spring end surface, after one end surface of the spring is polished, it is necessary to stop the machine and disassemble the spring, flip it over, and then re-clamp it before the other end surface can be ground flat. The spring flipping operation is cumbersome and time-consuming, which seriously affects the overall processing efficiency and cannot meet the requirements of efficient and automated processing in modern production. To this end, this application discloses a spring end surface grinding device and its processing technology, which mainly adopts the following scheme:

[0034] The embodiment of the present application discloses a spring end surface grinding device. Figure 1 The apparatus comprises a frame 1, a tilting frame 2 rotatably mounted on the frame 1, and a lifting frame 3 vertically slidably mounted on the frame 1. A clamping sleeve 4 is fixedly mounted on the tilting frame 2. The clamping sleeve 4 houses a pre-fixing module for pre-fixing the spring to be polished and a clamping mechanism for clamping the spring to be polished. The lifting frame 3 is equipped with a positioning assembly for positioning the spring to be polished. A movable frame 31 is horizontally slidably mounted on the lifting frame 3. The movable frame 31 is equipped with a polishing device 5 for polishing the end surface of the spring.

[0035] Reference Figure 1 Specifically, a servo motor 11 and a hydraulic cylinder 12 are mounted on the frame 1. The rotation axis of the tilting frame 2 is horizontal. The output shaft of the servo motor 11 is fixedly connected to the tilting frame 2 to drive the tilting frame 2 to rotate. The piston rod of the hydraulic cylinder 12 is fixedly connected to the lifting frame 3 to drive the lifting frame 3 to rise and fall. A servo cylinder 32 is mounted on the lifting frame 3. The piston rod of the servo cylinder 32 is fixedly connected to the moving frame 31 to drive the moving frame 31 to slide.

[0036] Reference Figure 1 In the embodiment of the present application, the grinding device 5 is a grinding machine. Specifically, the grinding wheel of the grinding machine is arranged horizontally, and the outer edge of the grinding wheel is provided with a diamond abrasive layer, which can effectively improve the grinding efficiency and quality. In other application embodiments, the grinding device 5 can also adopt a sanding belt mechanism, the surface of the sanding belt is coated with aluminum oxide abrasive, which is suitable for grinding the end faces of springs of different materials.

[0037] Reference Figure 1 and Figure 2 The positioning assembly includes a positioning frame 33, a positioning plate 34 and a rodless cylinder 35. The positioning frame 33 is slidably arranged on the lifting frame 3 in the vertical direction. The rodless cylinder 35 is installed on the lifting frame 3 to drive the positioning frame 33 to slide. The positioning plate 34 is slidably arranged on the positioning frame 33 in the vertical direction. The positioning frame 33 is provided with an adjusting member for adjusting the position of the positioning plate 34. Specifically, the adjusting member adopts an adjusting screw 331. The adjusting screw 331 is fixedly arranged on the positioning frame 33. A screw sleeve 341 is fixedly arranged on the top of the positioning plate 34. The adjusting screw 331 is threadedly engaged with the screw sleeve 341.

[0038] When the spring to be polished is loaded into the clamping sleeve 4 and pre-fixed by the pre-fixing module, the lifting frame 3 is driven downward by the hydraulic cylinder 12, and the components and the polishing device 5 are driven downward together, so that the polishing device 5 is at the working height. Then, the rodless cylinder 35 pushes the positioning frame 33 downward, the positioning plate 34 contacts the top of the spring, and pushes the spring to be polished to slide, so that the end face position of the spring to be polished is accurately aligned with the position of the polishing device 5, effectively ensuring the position accuracy of the spring in the clamping sleeve 4, providing a guarantee for the reliable clamping of the subsequent clamping mechanism and the precise processing of the polishing device 5, and effectively improving the overall quality and efficiency of the spring end face polishing. In addition, by adjusting the screw 331 and the threaded engagement of the positioning plate 34, the position of the positioning plate 34 can be accurately adjusted as needed. Further improve the positioning accuracy of the spring, and ensure that the spring end face can be adjusted to the ideal position before polishing.

[0039] Reference Figure 3 and Figure 4 The clamping mechanism includes a clamping block 41 and a driving assembly. The inner side wall of the clamping sleeve 4 is provided with a plurality of connecting ports 42. In the present application, three connecting ports 42 are provided. Each connecting port 42 is evenly spaced along the circumference of the clamping sleeve 4. A clamping block 41 is slidably provided in each connecting port 42. The clamping block 41 slides in a direction perpendicular to the central axis of the clamping sleeve 4. The driving assembly includes a limiting sleeve 43 and a pushing cylinder 44. The limiting sleeve 43 is slidably mounted on the clamping sleeve 4. The pushing cylinder 44 is mounted on the flip frame 2. The piston rod of the pushing cylinder 44 is fixedly connected to the limiting sleeve 43 to drive the limiting sleeve 43 to slide. A plurality of sliding grooves 431 are provided in the limiting sleeve 43 along the axial direction of the limiting sleeve 43. The sliding grooves 431 correspond to the clamping blocks 41 one by one, and the clamping blocks 41 are inserted into the corresponding sliding grooves 431. The side walls of the sliding grooves 431 are provided with guiding inclined surfaces 432. When the spring is placed in the clamping sleeve 4, it is located between the clamping blocks 41. The limiting sleeve 43 is driven to slide by the pushing cylinder 44, and the clamping blocks 41 are driven to approach each other through the guidance of the guiding slopes 432 in the sliding grooves 431, thereby clamping and fixing the spring.

[0040] Reference Figure 3 , a pressure bearing plate 433 is provided on the guiding bevel 432, and the pressure bearing plate 433 is parallel to the guiding bevel 432. A pressure sensor 434 is installed between the pressure bearing plate 433 and the guiding bevel 432 for detecting the pressure value on the pressure bearing plate 433. The pressure sensor 434 is electrically connected to a controller, and the controller is electrically connected to the push cylinder 44. Through this design, the pressure value on the pressure bearing plate 433 can be monitored in real time, and the data can be transmitted to the controller. The controller accurately adjusts the thrust of the push cylinder 44 according to the pressure value, thereby ensuring that the clamping force of the clamping block 41 on the spring is always kept within an appropriate range. Precise control of the clamping force is achieved, effectively avoiding the problem of spring deformation due to excessive clamping force or spring sliding due to insufficient clamping force. This precise force feedback mechanism not only improves the stability of spring clamping, but also improves the reliability and consistency of the entire grinding process.

[0041] Reference Figure 3 and Figure 4 The pre-fixing module includes multiple elastic pressure plates 45, and the elastic pressure plates 45 correspond to the connecting ports 42 one by one; specifically, the elastic pressure plate 45 includes a first guide sliding section 451, a second guide sliding section 452 and a clamping section 453, and the first guide sliding section 451 and the second guide sliding section 452 are respectively arranged on both sides of the clamping section 453, and the first guide sliding section 451 is fixedly arranged on the inner wall of the clamping sleeve 4, and the clamping section 453 and the second guide sliding section 452 are both suspended. The first guide sliding section 451 and the second guide sliding section 452 gradually approach the inner wall of the clamping sleeve 4 in the direction away from the clamping section 453, and are used to guide the spring to be polished into the clamping section 453, and the clamping section 453 of the elastic pressure plate 45 is covered at the connecting port 42.

[0042] The elastic pressure plate 45 can be made of elastic steel or polyurethane material and has a certain elastic deformation ability. When the spring is installed in the clamping sleeve 4, the spring enters between the elastic pressure plates 45 under the guidance of the first guide slide section 451 of each elastic pressure plate 45. The clamping section 453 of the elastic pressure plate 45 automatically fits the outer surface of the spring, providing preliminary positioning and support, thereby pre-fixing the spring. Moreover, through the arrangement of the first guide slide section 451 and the second guide slide section 452, the position of the spring can be freely adjusted within the clamping sleeve 4. In addition, the elastic pressure plate 45 corresponds to the connection port 42 one-to-one, and the clamping section 453 is arranged at the position of the connection port 42 to form a shield for the clamping block 41. In conjunction with the arrangement of the first guide slide section 451, the spring is facilitated to enter the clamping sleeve 4. At the same time, it also provides a stable transition state for the subsequent abutment of the clamping block 41, ensuring that the clamping mechanism can more accurately and reliably complete the further clamping operation of the spring.

[0043] Reference Figure 3Furthermore, the end surfaces of the clamping sections 453 of each elastic pressure plate 45, which are close to each other, are wavy in shape. This significantly increases friction with the outer surface of the spring, thereby improving the initial positioning and support of the pre-fixing module for the spring to be polished. It also provides a more stable transition state for the subsequent precise clamping of the clamping mechanism, effectively preventing the spring from deflecting or shaking within the clamping sleeve 4, further improving the processing accuracy and reliability of the entire device.

[0044] The implementation principle of a spring end face grinding device in the embodiment of the present application is as follows: through the cooperation of the flip frame 2 and the servo motor 11, the spring can be turned over without stopping, avoiding the tedious operations of manual disassembly and turning over required in the traditional method, and greatly improving the processing efficiency; through the mutual cooperation of the pre-fixed module and the positioning component, the end face of the spring can be accurately adjusted to the ideal position before grinding, and then the stability of the spring during the grinding process is ensured by the setting of the clamping mechanism, thereby effectively ensuring the accuracy and quality of the grinding of the spring end face. The overall solution effectively solves the problems of low efficiency and poor consistency in traditional manual or mechanical grinding, and provides reliable technical support for high-precision spring end face processing.

[0045] The present application also discloses a processing technology for a spring end surface grinding device, comprising the following steps:

[0046] S1. The spring to be polished is loaded into the clamping sleeve 4. The spring is guided by the first guide section 451 of each elastic pressure plate 45 and enters between the elastic pressure plates 45. The clamping section 453 of the elastic pressure plate 45 automatically fits the outer surface of the spring, providing preliminary positioning and support, thereby pre-fixing the spring.

[0047] S2. Start the hydraulic cylinder 12 to move the lifting frame 3 and the grinding device 5 down to the working height. The rodless cylinder 35 pushes the positioning frame 33 downward. The positioning plate 34 contacts the top of the spring and pushes the spring to be ground to slide, so that the end surface of the spring to be ground is accurately aligned with the position of the grinding device 5. Then, the push cylinder 44 drives the limiting sleeve 43 to slide. The guiding inclined surfaces 432 in the slide grooves 431 drive the clamping blocks 41 to approach each other, thereby clamping and fixing the spring.

[0048] S3, the servo cylinder 32 drives the movable frame 31 to slide, and at the same time, the grinding device 5 is started to grind the end surface of the spring;

[0049] S4: After the end surface of the spring is polished, the lifting frame 3 is raised to provide enough space for the spring to flip. The servo motor 11 drives the flip frame 2 to rotate 180 degrees, driving the spring to flip 180 degrees;

[0050] S5. Release the clamping mechanism for the spring, drive the lifting frame 3 downward again, reposition the spring using the positioning assembly, and then secure the spring using the clamping mechanism.

[0051] S6. The movable frame 31 is driven to slide again, and the other end surface of the spring is polished by the polishing device 5.

[0052] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A spring end surface grinding device, characterized in that: The invention comprises a frame (1), a turning frame (2) is rotatably provided on the frame (1), a servo motor (11) for driving the turning frame (2) to rotate is provided on the frame (1), a clamping sleeve (4) is fixedly provided on the turning frame (2), a pre-fixing module for pre-fixing a spring to be polished and a clamping mechanism for clamping the spring to be polished are provided in the clamping sleeve (4), a lifting frame (3) is slidably provided on the frame (1) in a vertical direction, a hydraulic cylinder (12) for driving the lifting frame (3) to slide is provided on the frame (1), a positioning assembly for positioning the spring to be polished is provided on the lifting frame (3), a moving frame (31) is slidably provided on the lifting frame (3) in a horizontal direction, a servo cylinder (32) for driving the moving frame (31) to slide is provided on the lifting frame (3), and a grinding device (5) for grinding the end face of the spring is provided on the moving frame (31); The clamping mechanism includes a clamping block (41) and a driving assembly. The inner side wall of the clamping sleeve (4) is provided with a plurality of connecting ports (42), and each of the connecting ports (42) is evenly spaced along the circumference of the clamping sleeve (4). The clamping block (41) is slidably arranged in each of the connecting ports (42), and the clamping block (41) slides in a direction close to or away from the central axis of the clamping sleeve (4). The driving assembly is used to drive each clamping block (41) to slide and clamp the spring to be polished. The pre-fixing module includes a plurality of elastic pressure plates (45) installed in the clamping sleeve (4), one end of the elastic pressure plate (45) is fixedly arranged on the inner wall of the clamping sleeve (4), and the other end is suspended, the elastic pressure plate (45) corresponds to the connecting port (42) one by one, and the elastic pressure plate (45) cover is arranged at the corresponding connecting port (42) position, and the clamping block (41) is used to abut the elastic pressure plate (45); The elastic pressure plate (45) includes a first guide slide section (451), a second guide slide section (452) and a clamping section (453), wherein the first guide slide section (451) and the second guide slide section (452) are respectively arranged on both sides of the clamping section (453), the first guide slide section (451) is fixedly connected to the inner side wall of the clamping sleeve (4), the clamping section (453) and the second guide slide section (452) are both suspended, and the first guide slide section (451) and the second guide slide section (452) are both used to guide the spring to be polished into the clamping section (453), and the clamping block (41) is used to abut the clamping section (453); The end surfaces of the clamping sections (453) of each elastic pressure plate (45) that are close to each other are all arranged in a wave shape.

2. The spring end surface grinding device according to claim 1, characterized in that: The driving assembly includes a limiting sleeve (43) and a pushing cylinder (44), the limiting sleeve (43) is slidably mounted on the clamping sleeve (4), a plurality of sliding grooves (431) are provided in the limiting sleeve (43) along the axial direction of the limiting sleeve (43), the sliding grooves (431) correspond to the clamping blocks (41) one by one, and the clamping blocks (41) are inserted into the corresponding sliding grooves (431), the side walls of the sliding grooves (431) are provided with guiding inclined surfaces (432), and the guiding inclined surfaces (432) are used to guide the corresponding clamping blocks (41) to slide toward the central axis of the clamping sleeve (4), and the pushing cylinder (44) is used to drive the limiting sleeve (43) to slide.

3. The spring end surface grinding device according to claim 2, characterized in that: A pressure bearing plate (433) is provided on the guide inclined surface (432), a pressure sensor (434) is provided on the pressure bearing plate (433), the pressure sensor (434) is electrically connected to a controller, and the controller is electrically connected to the push cylinder (44).

4. The spring end surface grinding device according to claim 1, characterized in that: The positioning assembly comprises a positioning frame (33), a positioning plate (34) and a rodless cylinder (35); the positioning frame (33) is slidably arranged on the lifting frame (3) in a vertical direction; the rodless cylinder (35) is used to drive the positioning frame (33) to slide; the positioning plate (34) is installed on the positioning frame (33) and is used to abut against the spring to be polished and push the spring to be polished to slide.

5. The spring end surface grinding device according to claim 4, characterized in that: The positioning plate (34) is slidably arranged on the positioning frame (33) in a vertical direction, and the positioning frame (33) is provided with an adjusting member for adjusting the position of the positioning plate (34).

6. A processing technology based on the spring end surface grinding equipment according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1, placing the spring to be polished into the clamping sleeve (4), and pre-fixing the spring using a pre-fixing module; S2. Start the hydraulic cylinder (12) to move the lifting frame (3) and the grinding device (5) downward to the working height, position the spring by the positioning assembly so that the end face of the spring to be ground is accurately aligned with the position of the grinding device (5), and then clamp the spring in the clamping sleeve (4) by the clamping mechanism; S3, driving the movable frame (31) to slide by the servo cylinder (32), and at the same time, starting the grinding device (5) to grind the end surface of the spring; S4, after the end surface of the spring is polished, the lifting frame (3) is raised to provide enough space for the spring to turn over, and the servo motor (11) drives the turning frame (2) to rotate 180 degrees, driving the spring to turn over 180 degrees; S5, releasing the clamping mechanism for the spring, driving the lifting frame (3) downward again, repositioning the spring through the positioning assembly, and then fixing the spring with the clamping mechanism; S6, driving the movable frame (31) to slide again, and grinding the other end surface of the spring by the grinding device (5).

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