Spring end face grinding equipment and machining process thereof

Abstract

The invention discloses spring end face grinding equipment and a machining process thereof, and relates to the technical field of spring machining equipment.The spring end face grinding equipment comprises a rack, a turnover frame is rotationally arranged on the rack, and a clamping sleeve is fixedly arranged on the turnover frame; a pre-fixing module used for pre-fixing a to-be-polished spring and a clamping mechanism used for clamping the to-be-polished spring are arranged in the clamping sleeve, a lifting frame is slidably arranged on the rack in the vertical direction, and a positioning assembly used for positioning the to-be-polished spring is arranged on the lifting frame. A moving frame is slidably arranged on the lifting frame in the horizontal direction, and a grinding device used for grinding the end face of the spring is arranged on the moving frame. According to the spring end face grinding device, automatic overturning of the spring end face in the grinding process is achieved, the machining efficiency is remarkably improved, and meanwhile the grinding precision of the spring end face is ensured.

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 equipment and a processing technology thereof. Background Art

[0002] As an elastic element widely used in mechanical structures, the performance of springs directly affects the stability and life of mechanical equipment. The quality of the end surfaces of the springs has an important influence on the working performance of the springs, especially in high-precision mechanical equipment, where the flatness of the spring end surfaces determines the contact area with the support surface and the uniformity of the force.

[0003] At present, the spring end surface grinding mainly adopts two methods: manual grinding and mechanical grinding. Manual grinding is simple to operate and low in cost. It is usually performed manually by operators using sandpaper or a grinder to process the spring end surface manually. The disadvantages are low efficiency, poor precision, and difficulty in ensuring consistency. Mechanical grinding uses special grinding equipment to process the spring end surface. Although it 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 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. Therefore, how to achieve efficient grinding of both end surfaces of the spring has become a technical problem that needs to be solved urgently in the current industry. Summary of the invention

[0004] In view of the problems existing in the prior art, the present application provides a spring end surface 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: A spring end surface grinding device comprises a frame, a turning frame is rotatably arranged on the frame, a servo motor for driving the turning frame to rotate is arranged on the frame, a clamping sleeve is fixedly arranged on the turning frame, a pre-fixing module for pre-fixing the spring to be polished and a clamping mechanism for clamping the spring to be polished are arranged in the clamping sleeve, a lifting frame is slidably arranged on the frame in a vertical direction, a hydraulic cylinder for driving the lifting frame to slide is arranged on the frame, a positioning assembly for positioning the spring to be polished is arranged on the lifting frame, a moving frame is slidably arranged on the lifting frame in a horizontal direction, a servo cylinder for driving the moving frame to slide is arranged on the lifting frame, and a grinding device for grinding the spring end surface is arranged on the moving frame.

[0006] Optionally, the clamping mechanism includes clamping blocks and a driving assembly. A plurality of connection ports are formed in the inner sidewall of the clamping sleeve, and the connection ports are equidistantly distributed along the circumferential direction of the clamping sleeve. Each of the connection ports is slidably provided with a clamping block, and the clamping block slides in a direction close to or away from the central axis of the clamping sleeve. The driving assembly is used to drive each clamping block to slide and clamp the spring to be polished.

[0007] Optionally, the driving assembly includes a limiting sleeve and a pushing cylinder. The limiting sleeve is slidably sleeved on the clamping sleeve. A plurality of sliding grooves are formed 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 arranged in the corresponding sliding grooves. A guiding inclined surface is arranged on the sidewall of the sliding groove, and the guiding inclined surface is used to guide the corresponding clamping block to slide in a direction close to the central axis of the clamping sleeve. The pushing cylinder is used to drive the limiting sleeve to slide.

[0008] Optionally, the pre-fixing module includes a plurality of elastic pressing plates installed in the clamping sleeve. One end of the elastic pressing plate is fixedly arranged on the inner sidewall of the clamping sleeve, and the other end is suspended. The elastic pressing plates correspond to the connection ports one by one, and the elastic pressing plates cover the corresponding connection port positions. The clamping block is used to abut against the elastic pressing plate.

[0009] Optionally, the elastic pressing plate includes a first guiding section, a second guiding section and a clamping section. The first guiding section and the second guiding section are respectively arranged on both sides of the clamping section. The first guiding section is fixedly connected to the inner sidewall of the clamping sleeve. The clamping section and the second guiding section are both suspended, and the first guiding section and the second guiding section are both used to guide the spring to be polished into the clamping section. The clamping block is used to abut against the clamping section.

[0010] Optionally, the end faces of the clamping sections of the elastic pressing plates close to each other are all arranged in a wavy shape.

[0011] Optionally, a pressure bearing plate is arranged on the guiding inclined surface, a pressure sensor is arranged on the pressure bearing plate, the pressure sensor is electrically connected to a controller, and the controller is electrically connected to the pushing cylinder.

[0012] 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 and is used to abut against the spring to be polished and push the spring to be polished to slide.

[0013] Optionally, the positioning plate is slidably arranged on the positioning frame in the vertical direction, and an adjusting member for adjusting the position of the positioning plate is arranged on the positioning frame.

[0014] In a second aspect, the present application provides a processing technology for a spring end face grinding device, adopting the following technical solution: A processing technology for a spring end face grinding device, comprising the following steps: S1. Load the spring to be ground into the clamping sleeve, and pre-fix the spring through the pre-fixing module; S2. Start the hydraulic cylinder to drive the lifting frame to move the grinding device down to the working height, position the spring through the positioning component, so that the position of the end face of the spring to be ground is accurately aligned with the position of the grinding device, and then clamp and fix the spring in the clamping sleeve through the clamping mechanism; S3. Drive the moving frame to slide through the servo cylinder. At the same time, start the grinding device to grind the end face of the spring; S4. After the end face of the spring is ground, raise the lifting frame to provide enough space for the flipping of the spring, and drive the flipping frame to rotate 180° through the servo motor, driving the spring to flip 180°; S5. Loosen the clamping and fixing of the spring by the clamping mechanism, drive the lifting frame to move down again, re-position the spring through the positioning component, and then fix the spring by using the clamping mechanism; S6. Drive the moving frame to slide again, and grind the other end face of the spring through the grinding device.

[0015] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present application realizes the automatic flipping of the spring end face during the grinding process, significantly improves the processing efficiency, and at the same time ensures the precision of the spring end face grinding; specifically, through the cooperation of the flipping frame and the servo motor, the flipping operation of the spring can be completed without stopping the machine, avoiding the cumbersome operations of manual disassembly and flipping in the traditional method, and greatly improving the processing efficiency; through the mutual cooperation of the pre-fixing 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 through the setting of the clamping mechanism, thereby effectively ensuring the precision and quality of the spring end face grinding. 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.

[0016] 2. The present application forms the pre-fixing module by multiple elastic pressing plates. One end of the elastic pressing plate is fixed on the inner side wall of the clamping sleeve, and the other end is suspended, forming a certain elastic deformation ability. When the spring is loaded into the clamping sleeve, the elastic pressing plate automatically fits the outer surface of the spring, which can provide preliminary positioning and support for the spring to be ground, and avoid the spring from shifting or falling in the clamping sleeve. In addition, the elastic pressing plates correspond to the connection ports one by one and cover the connection port positions, which can also provide a stable transition state for the subsequent abutment of the clamping blocks, ensuring that the clamping mechanism can complete the further clamping operation of the spring more accurately and reliably.

[0017] 3. By setting up the pressure-bearing plate in this application, precise control of the clamping force is achieved, effectively avoiding problems such as spring deformation caused by excessive clamping force or spring slipping caused by 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 precisely adjusts the thrust of the push cylinder according to the pressure value, thereby ensuring that the clamping force of the clamping block 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. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the embodiment of this application; Figure 2 is the structural sectional view of the positioning frame used in the embodiment of this application; Figure 3 is the structural sectional view of the clamping sleeve used in the embodiment of this application, mainly used to express the internal structure of the clamping sleeve; Figure 4 is the structural sectional view of the clamping sleeve used in the embodiment of this application, mainly used to express the distribution of the clamping block and the elastic pressure plate in the clamping sleeve.

[0019] Description of the Reference Numerals: 1, frame; 11, servo motor; 12, hydraulic cylinder; 2, flipping frame; 3, lifting frame; 31, moving frame; 32, servo cylinder; 33, positioning frame; 331, adjusting screw; 34, positioning plate; 341, screw sleeve; 35, rodless cylinder; 4, clamping sleeve; 41, clamping block; 42, connection port; 43, limiting sleeve; 431, sliding groove; 432, guiding inclined surface; 433, pressure-bearing plate; 434, pressure sensor; 44, push cylinder; 45, elastic pressure plate; 451, first guiding sliding section; 452, second guiding sliding section; 453, clamping section; 5, grinding device. Detailed Embodiments

[0020] The following will combine the attached Figure 1 - attached Figure 4 , to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can fully combine the embodiments of the present invention and obtain other embodiments without creative labor, and these embodiments are also within the protection scope of the present invention.

[0021] The inventors of the present application have found that the existing spring end face grinding mainly adopts two methods: manual grinding and mechanical grinding; manual grinding has low efficiency, poor precision, and it is difficult to ensure consistency; while mechanical grinding improves the efficiency and precision, but when the existing mechanical grinding equipment grinds the spring end face, after one end face of the spring is ground, it is necessary to stop the machine, disassemble the spring, turn it over and then re-clamp it before the other end face can be ground flat. The spring turning operation is cumbersome and time-consuming, seriously affecting the overall processing efficiency and unable to meet the requirements of high-efficiency and automated processing in modern production. For this reason, the present application discloses a spring end face grinding equipment and its processing technology, mainly adopting the following solutions: An embodiment of the present application discloses a spring end face grinding equipment. Refer to Figure 1 , including a frame 1, a turning frame 2 rotatably arranged on the frame 1, and a lifting frame 3 slidably arranged on the frame 1 in the vertical direction. A clamping sleeve 4 is fixedly arranged on the turning frame 2. A pre-fixing module for pre-fixing the spring to be ground and a clamping mechanism for clamping the spring to be ground are arranged in the clamping sleeve 4. A positioning component for positioning the spring to be ground is arranged on the lifting frame 3; a moving frame 31 is slidably arranged on the lifting frame 3 in the horizontal direction, and a grinding device 5 for grinding the spring end face is arranged on the moving frame 31.

[0022] Refer to Figure 1 , specifically, a servo motor 11 and a hydraulic cylinder 12 are installed on the frame 1. The rotation axis of the turning frame 2 is horizontal, and the output shaft of the servo motor 11 is fixedly connected to the turning frame 2 for driving the turning frame 2 to rotate; the piston rod of the hydraulic cylinder 12 is fixedly connected to the lifting frame 3 for driving the lifting frame 3 to lift and lower. A servo cylinder 32 is installed on the lifting frame 3, and the piston rod of the servo cylinder 32 is fixedly connected to the moving frame 31 for driving the moving frame 31 to slide.

[0023] Refer to Figure 1 , in the embodiment of the present application, the grinding device 5 adopts a grinding wheel machine. Specifically, the grinding wheel of the grinding wheel machine is horizontally arranged, and a diamond abrasive layer is arranged on the outer edge of the grinding wheel, which can effectively improve the grinding efficiency and quality. In other application embodiments, the grinding device 5 can also adopt a sand belt mechanism, and the surface of the sand belt is coated with alumina abrasive, which is suitable for grinding the end faces of springs made of different materials.

[0024] Refer to Figure 1 and Figure 2, the positioning component 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 and is used to drive the positioning frame 33 to slide. The positioning plate 34 is slidably arranged on the positioning frame 33 in the vertical direction. An adjusting member for adjusting the position of the positioning plate 34 is provided on the positioning frame 33. 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 at the top end of the positioning plate 34. The adjusting screw 331 is in threaded cooperation with the screw sleeve 341.

[0025] When the spring to be polished is loaded into the clamping sleeve 4 and pre-fixed by the pre-fixing module, the hydraulic cylinder 12 drives the lifting frame 3 to move downward, and drives the component and the grinding device 5 to move downward together, so that the grinding device 5 is at the working height. Then, the rodless cylinder 35 pushes the positioning frame 33 to slide downward. The positioning plate 34 abuts against the top end of the spring and pushes the spring to be polished to slide, so that the position of the end face of the spring to be polished is accurately aligned with the position of the grinding 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 machining of the grinding device 5, and effectively improving the overall quality and efficiency of the spring end face grinding. Moreover, by the threaded cooperation of the adjusting screw 331 and the positioning plate 34, the position of the positioning plate 34 can be precisely adjusted as needed. Further improving the positioning accuracy of the spring and ensuring that the spring end face can be adjusted to an ideal position before grinding.

[0026] Refer to Figure 3 and Figure 4 , the clamping mechanism includes clamping blocks 41 and a driving component. A plurality of connecting ports 42 are opened on the inner side wall of the clamping sleeve 4. In this application, three connecting ports 42 are provided, and the connecting ports 42 are equally spaced along the circumferential direction of the clamping sleeve 4. A clamping block 41 is slidably arranged in each connecting port 42, and the clamping block 41 slides in the direction perpendicular to the central axis of the clamping sleeve 4. The driving component includes a limiting sleeve 43 and a pushing cylinder 44. The limiting sleeve 43 is slidably sleeved on the clamping sleeve 4. The pushing cylinder 44 is installed on the flipping frame 2, and the piston rod of the pushing cylinder 44 is fixedly connected to the limiting sleeve 43 and is used to drive the limiting sleeve 43 to slide. A plurality of sliding grooves 431 are axially opened in 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. A guiding inclined surface 432 is provided on the side wall of the sliding groove 431. When the spring is placed in the clamping sleeve 4 and is located between the clamping blocks 41, the pushing cylinder 44 drives the limiting sleeve 43 to slide, and the guiding inclined surfaces 432 in the sliding grooves 431 guide the clamping blocks 41 to approach each other, so as to realize the clamping and fixing of the spring.

[0027] Refer to Figure 3, a pressure bearing plate 433 is provided on the guiding inclined surface 432. The pressure bearing plate 433 is parallel to the guiding inclined surface 432. A pressure sensor 434 is installed between the pressure bearing plate 433 and the guiding inclined surface 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 pushing cylinder 44. Through this design, the pressure value on the pressure bearing plate 433 can be monitored in real time and the data is transmitted to the controller. The controller accurately adjusts the thrust of the pushing cylinder 44 according to the pressure value, so as to ensure that the clamping force of the clamping block 41 on the spring always remains within an appropriate range. The precise control of the clamping force is realized, effectively avoiding the problems of spring deformation caused by excessive clamping force or spring sliding caused by insufficient clamping force. 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.

[0028] Referring to Figure 3 and Figure 4 , the pre-fixing module includes a plurality of elastic pressing plates 45, and the elastic pressing plates 45 correspond to the connection ports 42 one by one; specifically, the elastic pressing plate 45 includes a first guiding and sliding section 451, a second guiding and sliding section 452 and a clamping section 453. The first guiding and sliding section 451 and the second guiding and sliding section 452 are respectively arranged on both sides of the clamping section 453. The first guiding and sliding section 451 is fixedly arranged on the inner side wall of the clamping sleeve 4. The clamping section 453 and the second guiding and sliding section 452 are both suspended. The first guiding and sliding section 451 and the second guiding and sliding section 452 both gradually approach the inner side wall of the clamping sleeve 4 in the direction away from the clamping section 453 for guiding the spring to be ground into the clamping section 453. The clamping section 453 of the elastic pressing plate 45 covers the position of the connection port 42.

[0029] The elastic pressing plate 45 can be made of elastic steel or polyurethane material and has a certain elastic deformation ability. When the spring is loaded into the clamping sleeve 4, the spring enters between the elastic pressing plates 45 under the guidance of the first guiding and sliding section 451 of each elastic pressing plate 45. The clamping section 453 of the elastic pressing plate 45 automatically fits the outer surface of the spring, which can provide a preliminary positioning and supporting effect, thereby pre-fixing the spring. Moreover, through the setting of the first guiding and sliding section 451 and the second guiding and sliding section 452, the spring can freely adjust its position in the clamping sleeve 4. In addition, the elastic pressing plates 45 correspond to the connection ports 42 one by one, and the clamping section 453 covers the position of the connection port 42, which can block the clamping block 41. With the setting of the first guiding and sliding section 451, it is convenient for the spring to enter the clamping sleeve 4; at the same time, it can also provide 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.

[0030] Referring to Figure 3Furthermore, the end faces of the clamping sections 453 of each elastic pressure plate 45 that are close to each other are all configured to be wavy, which can significantly increase the friction with the outer surface of the spring, thereby improving the initial positioning and supporting effect of the pre-fixing module on the spring to be polished. It can also provide a more stable transition state for the subsequent precise clamping of the clamping mechanism, effectively avoiding the deviation or shaking of the spring in the clamping sleeve 4, and further improving the processing accuracy and reliability of the entire equipment.

[0031] 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 operation of manual disassembly and turning over in the traditional method, greatly improving the processing efficiency; through the mutual cooperation of the pre-fixing 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 spring end face grinding. 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.

[0032] The embodiment of the present application also discloses a processing technology of a spring end surface grinding device, comprising the following steps: S1. The spring to be polished is loaded into the clamping sleeve 4. The spring enters between the elastic pressing plates 45 under the guidance of the first guide slide section 451 of each elastic pressing plate 45. The clamping section 453 of the elastic pressing plate 45 automatically fits the outer surface of the spring, which can provide preliminary positioning and support, thereby pre-fixing the spring. S2, start the hydraulic cylinder 12, so that the lifting frame 3 drives the grinding device 5 to move down to the working height, the rodless cylinder 35 pushes the positioning frame 33 to slide down, the positioning plate 34 abuts against 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, and then the limit sleeve 43 is driven to slide by the push cylinder 44, and the guide inclined surfaces 432 in the slide grooves 431 drive the clamping blocks 41 to approach each other, so as to achieve the clamping and fixing of the spring; 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 flip, and the servo motor 11 drives the flip frame 2 to rotate 180°, driving the spring to flip 180°; S5, loosening 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. Drive the movable frame 31 to slide again, and polish the other end face of the spring through the polishing device 5.

[0033] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope 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 arranged on the frame (1), a servo motor (11) for driving the turning frame (2) to rotate is arranged on the frame (1), a clamping sleeve (4) is fixedly arranged 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 arranged in the clamping sleeve (4), a lifting frame (3) is slidably arranged on the frame (1) in a vertical direction, a hydraulic cylinder (12) is arranged on the frame (1) for driving the lifting frame (3) to slide, a positioning assembly for positioning the spring to be polished is arranged on the lifting frame (3), a moving frame (31) is slidably arranged on the lifting frame (3) in a horizontal direction, a servo cylinder (32) is arranged on the lifting frame (3) for driving the moving frame (31) to slide, and a grinding device (5) for grinding the end surface of the spring is arranged on the moving frame (31).

2. A spring end surface grinding device according to claim 1, characterized in that: The clamping mechanism comprises 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 approaching 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.

3. A spring end surface grinding device according to claim 2, characterized in that: The driving assembly comprises 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). The pushing cylinder (44) is used to drive the limiting sleeve (43) to slide.

4. A spring end surface grinding device according to claim 3, characterized in that: The pre-fixing module comprises a plurality of elastic pressure plates (45) installed in a 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) is covered at the corresponding connecting port (42), and the clamping block (41) is used to abut against the elastic pressure plate (45).

5. A spring end surface grinding device according to claim 4, characterized in that: The elastic pressure plate (45) includes a first guide slide section (451), a second guide slide section (452) and a clamping section (453); 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 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).

6. A spring end surface grinding device according to claim 5, characterized in that: The end surfaces of the clamping sections (453) of each of the elastic pressure plates (45) that are close to each other are all arranged in a wave shape.

7. A spring end surface grinding device according to claim 3, characterized in that: A pressure bearing plate (433) is arranged on the guiding inclined surface (432), a pressure sensor (434) is arranged 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).

8. The spring end surface grinding device according to claim 5, 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.

9. A spring end surface grinding device according to claim 8, characterized in that: The positioning plate (34) is slidably arranged on the positioning frame (33) along the vertical direction, and the positioning frame (33) is provided with an adjusting member for adjusting the position of the positioning plate (34).

10. A processing technology based on the spring end surface grinding equipment according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, loading the spring to be polished into the clamping sleeve (4), and pre-fixing the spring by means of a pre-fixing module; S2, start the hydraulic cylinder (12), so that the lifting frame (3) drives the grinding device (5) to move down to the working height, and the spring is positioned by the positioning assembly so that the end surface of the spring to be ground is accurately aligned with the position of the grinding device (5), and then the spring is clamped and fixed 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 sufficient space for the spring to flip, and the servo motor (11) drives the flip frame (2) to rotate 180°, driving the spring to flip 180°; S5, releasing the clamping mechanism for the spring, driving the lifting frame (3) downward again, repositioning the spring by means of the positioning assembly, and then fixing the spring by means of the clamping mechanism; S6, driving the movable frame (31) to slide again, and grinding the other end surface of the spring by means of the grinding device (5).

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