Automatic burr removing equipment for steel backing and using method of automatic burr removing equipment

Abstract

The invention belongs to the technical field of automobile braking, and discloses steel backing automatic burr removing equipment and a using method thereof.The steel backing automatic burr removing equipment comprises a rack subassembly, a power subassembly, a carrier transverse moving subassembly and a burr removing subassembly, and a bottom frame and a table top are arranged in the rack subassembly; the power assembly is fixedly connected to the table top, a guide shaft and a cam shaft are arranged in the power assembly, a guide shaft support is arranged in the burr raising assembly, and the guide shaft support is provided with a shaft hole and is in sliding fit with the guide shaft; the burr removing part is provided with a first spring, and the burr removing part is driven by the cam shaft and under the action of the first spring and conducts reciprocating motion with the guide shaft as the guide. The invention further discloses a using method of the equipment. According to the invention, under the condition of switching production of different models, a mold and a cutter do not need to be replaced; the automation degree is high and the labor intensity is low; higher burnishing intensity can be realized, and the adhesive force between the steel backing and a friction material is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile brake technology, in particular to an automatic steel back burring device and a use method thereof; the device is used for burring the steel back of a brake disc, but is not limited thereto. Background Art

[0002] With the development of the automotive brake industry, burring the steel backing of brake discs is becoming increasingly common to improve adhesion between the steel backing and the friction material. The steel backing is generally used to support and secure the friction material. Improving adhesion between the steel backing and the friction material allows for even pressure transfer to the friction material, playing a key role in preventing the friction material from falling off, deforming, and cracking. Currently, the burr spacing and density of the burrs produced by the burring process are too large, resulting in reduced adhesion between the steel backing and the friction material.

[0003] In addition, the existing burring process cannot adapt to the needs of various steel back models, and frequent mold replacement is required, which leads to low production efficiency and high mold development costs; the burr height is inconsistent, which also reduces the adhesion effect of the friction material; the uneven spacing between the burrs and the outer contour of the steel back affects the appearance of the product; product defects such as missing burrs and missing burrs result in low product yield and reduced product life. Summary of the Invention

[0004] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is: how to perform steel back thorn removal automatically and correctly in a high-density, batch-wise, and adaptable to different models.

[0005] In order to solve the above technical problems, firstly, the present invention provides a steel back automatic thorn removal device, comprising: A frame assembly, wherein the frame assembly is provided with a table and a base frame; A power unit assembly, the power unit assembly is fixedly connected to the table, and the power unit assembly includes a guide shaft, a second motor, and a camshaft; The thorn-raising part is equipped with a guide shaft bracket, the guide shaft bracket is provided with a shaft hole and is slidably matched with the guide shaft; the thorn-raising part is equipped with a spring 1, one end of which is connected to the power part; A carrier transverse moving device is fixedly connected to the table via a guide rail, a carrier plate is fixedly connected to a slider of the guide rail, and the carrier plate is provided with an electromagnet for fixing a steel back. The carrier transverse moving device is fixedly connected to the base frame via a first motor, and the first motor drives a screw shaft to drive the carrier plate to move transversely; Wherein, the pricking part is installed on the carrier transverse moving part and performs the pricking action when it moves to the target position, and reciprocates under the action of the spring and the cam shaft.

[0006] Furthermore, the power unit also includes: A main engine seat, wherein the guide shaft is arranged in the main engine seat, and bearings 1 are installed on both sides of the main engine seat; a motor base plate, the motor base plate being used to fix the second motor, the second motor being provided with a first pulley, the motor base plate being hinged to the main base; and A spring bracket is located on one side of the main frame and is fixedly connected.

[0007] Furthermore, the camshaft is arranged between the bearings 1, and a second pulley is installed on one side of the camshaft, and the second pulley is driven to rotate by the first pulley through a belt.

[0008] Furthermore, guide shaft covers are provided at both ends of the guide shaft, and the guide shaft and the table are formed with a preset inclination angle, the range of which is adjusted according to the eccentricity of the camshaft and the shoveling stroke.

[0009] Furthermore, the thorn-raising device further comprises: A cylinder seat, the cylinder seat being fixedly connected to the guide shaft bracket; A tool holder connected to the cylinder holder, the tool holder being provided with a tool holder shaft and a plurality of tool sleeves rotatably engaged with the tool holder shaft, the number of the tool sleeves being preferably 5-15, more preferably 13; Wherein, a knife is provided in the knife sheath.

[0010] Furthermore, the knife sleeve is provided with an adjusting screw.

[0011] Furthermore, the thorn-raising device further comprises: Copper sleeves, the copper sleeves are arranged at both ends of the shaft hole of the guide shaft bracket; A through hole is provided at a position of the knife seat corresponding to the knife sleeve, and a small copper sleeve is provided in the through hole; A cylinder, the cylinder being arranged at a position of the cylinder seat corresponding to the tool sleeve; and Spring 2, the spring 2 connects the knife seat and the knife sleeve.

[0012] Furthermore, the carrier transverse movement device further comprises: Nut 1, the nut 1 is fixedly connected to the carrier plate; A bearing seat, wherein a second bearing and a third bearing are arranged in the bearing seat; Nut 2, the nut 2 fastens the screw shaft, the bearing 2 and the bearing 3.

[0013] Furthermore, the carrier transverse moving part is equipped with a screw bearing seat, and the carrier transverse moving part further includes: Bearing four, said bearing four being fixed in said screw bearing seat via a bearing cover; a first roller sprocket connected to the first motor; A second roller sprocket is connected to the first roller sprocket via a roller chain.

[0014] The present invention also provides a method for using the above device, comprising the following steps: S0. According to the steel back model in the control program, the tool sleeve work sequence is selected, and the work sequence contains at least 5 coordinate instructions for activating the tool sleeve; S1. Place the steel back on the carrier; S2. The first motor drives the screw shaft, which in turn drives the carrier plate to a specified position and remains stationary; S3. Adjust the tool height to keep all tools at the same height. The tool height can be adjusted according to processing needs. S4. Control the extension and retraction of the cylinder push rod according to the preset program to meet the requirements of different positions of the steel back; S5. The thorn-lifting portion is installed in the power unit and moves forward along the guide shaft. After moving to the front distance, the thorn-lifting portion is installed under the joint action of a spring and a camshaft and returns to the initial position, completing a thorn-lifting action; S6. The above-mentioned burring action is continuously repeated until the burring process of a steel back part is completed; when a steel back part requires burring in opposite directions, after completing the burring process in one direction, the clamping direction of the steel back is reversed 180 degrees and the above-mentioned burring process is completed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The pricking device of the present invention adopts a multi-tool array design, such as 13 knife sets arranged in sequence, which increases the number of pricking points through high-density arrangement. Each knife set can independently control the pricking action. Through the extension and contraction of the cylinder push rod, the pricking points can be densely and flexibly distributed, which significantly improves the density of the hooks, enhances the adhesion between the steel back and the friction material, and prevents falling off and cracking. Each blade sleeve of the burr-forming unit of the present invention is equipped with an independent air cylinder. The extension and retraction of the ejector rod is controlled by a program, and a specific blade is selectively activated / deactivated. There is no need to replace the mold or the blade. Only the program needs to be adjusted to match the burr-forming area shape of different types of steel backs. This can adapt to all types of steel backs in the industry, reduce mold development costs, shorten changeover time, and improve production efficiency. The burring tool height on the tool holder of the present invention is adjustable. Through mechanical structure adjustment, the height of all tools is ensured to be consistent. The tool height is uniformly calibrated according to processing requirements, maintaining uniform burring depth and height, improving the uniformity of friction material adhesion, and reducing deformation risks. The carrier lateral movement device of the present invention controls the moving position of the steel back through a high-precision screw shaft and a linear guide driven by a motor, and the electromagnet fixes the position of the steel back, ensuring the stability of the clamping and avoiding deviation, so that the spacing between the puncture points and the contour is uniform, improving the aesthetics of the product while ensuring functionality; The invention uses an automated control program to precisely coordinate the carrier's lateral movement and the pricking action, ensuring that each pricking point is processed according to the preset path. The tool status is monitored in real time through cylinder feedback, avoiding missed punctures, reducing processing defects, improving the yield rate, and extending the product life. The present invention adopts a motor to drive the carrier to move horizontally, a camshaft to drive the burring part to move back and forth, and a program to control the movement of the cylinder. Workers only need to clamp the workpiece and start the equipment without complicated operations, which reduces dependence on workers' skills, reduces labor intensity, and realizes efficient mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a front view of the final assembly of the present invention; Figure 2 It is a side view of the final assembly of the present invention; Figure 3 This is a schematic diagram of the transverse movement assembly of the carrier in the present invention; Figure 4 This is a schematic diagram of the thorn-raising portion of the present invention; Figure 5 Schematic diagram of the tool in the present invention; Figure 6 It is a side view of the power unit of the present invention; Figure 7 for Figure 6 Schematic diagram of the cross section at the middle BB; Figure 8 It is a front view of the frame assembly of the present invention; Figure 9 This is a schematic diagram of the steel back structure after burring processing of the present invention; In the figure, 1. Carrier traverse assembly; 2. Spiking assembly; 3. Power assembly; 4. Frame assembly; 5. Bearing seat; 6. Carrier plate; 7. Nut 1; 8. Guide rail; 9. Bearing 2; 10. Bearing 3; 12. Bearing 4; 13. Screw bearing seat; 14. Bearing cover; 15. Screw shaft; 16. Nut 2; 17. Lock washer; 18. First motor; 19. Motor plate; 20. Electromagnet; 21. Roller chain; 22. First roller sprocket; 23. Second roller sprocket; 24. Cylinder seat; 25. Tool holder; 2 6. Small copper sleeve; 27. Knife sleeve; 28. Knife; 29. ​​Knife holder shaft; 30. Spring 1; 31. Guide shaft bracket; 32. Copper sleeve; 33. Spacer; 34. Cylinder; 35. Main engine base; 36. Guide shaft cover; 37. Bearing 1; 38. Camshaft; 39. Motor base plate; 40. Second motor; 41. Bearing pressure cover; 43. Spring bracket; 44. Guide shaft; 45. Belt; 46. First pulley; 47. Second pulley; 48. Table; 49. Base frame; 50. Spring 2; 51. Wear strip. DETAILED DESCRIPTION

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention. Example

[0019] First, please refer to Figure 1 As shown, it is a schematic diagram of the assembly of the needle-raising device of the present invention, the needle-raising device includes: a frame assembly 4, a power assembly 3, a carrier transverse movement assembly 1, and a needle-raising assembly 2, wherein, Combine Figures 1-8 The frame part 4 is provided with a base frame 49 and a table 48, and the frame part 4 provides support and connection for the equipment; the power part 3 is fixedly connected to the table 48, and the power part 3 is provided with a guide shaft 44 and a cam shaft 38, and the thorn-raising part 2 is provided with a guide shaft bracket 31, and the guide shaft bracket 31 is provided with an axis hole and slides with the guide shaft 44; the thorn-raising part 2 is provided with a spring 30, and the spring 30 can be a tension spring, and one end of the spring 30 is connected to the power part 3, and the thorn-raising part 2 is driven by the cam shaft 38 and the action of the spring 30, and the thorn-raising part 2 reciprocates with the guide shaft 44 as the guide.

[0020] The carrier transverse moving part 1 is fixedly connected to the table 48 through the linear guide rail 8 provided inside. The first motor 18 provided in the carrier transverse moving part 1 is fixedly connected to the base frame 49. The carrier transverse moving part 1 is located below the thorn-raising part 2. The carrier transverse moving part 1 is provided with a screw shaft 15 and a carrier plate 6; the carrier plate 6 is used to clamp the steel back and ensure that the steel back is located in the correct position of the carrier plate 6; the first motor 18 drives the screw shaft 15, and then drives the carrier plate 6 to perform a transverse movement to reach the required correct position.

[0021] The carrier transverse moving part 1 moves the steel back to the correct position and remains stationary. At this time, the thorn-raising part 2 moves forward along the guide shaft 44 under the drive of the power part 3. After moving to the frontmost distance, the thorn-raising part 2 returns to the initial position under the joint action of the spring 1 30 and the cam shaft 38, completing a thorn-raising action; the above-mentioned thorn-raising action is continuously repeated until the thorn-raising process of a steel-back part is completed; when a steel-back part has thorn-raising requirements in opposite directions, after completing the thorn-raising process in one direction, the clamping direction of the steel back is reversed 180°, and the above-mentioned thorn-raising process is completed.

[0022] The power unit 3 is provided with a main frame 35, bearings 37 are installed on both sides of the main frame 35, bearing covers 41 are installed on the outside of the bearings 37, a camshaft 38 is installed between the bearings 37, a second pulley 47 is installed on one side of the camshaft 38, and the second pulley 47 is driven to rotate by a first pulley 46 installed on the second motor 40 through a belt 45. The second motor 40 is fixedly connected to the motor base plate 39; The motor base plate 39 and the main base 35 are hingedly connected. This structure firstly makes the angle between the motor base plate 39 and the main base 35 not fixed. By adjusting the angle between the two, that is, changing the installation position of the second motor 40, the tension of the belt 45 can be dynamically adjusted to avoid slipping or decreased transmission efficiency due to loosening of the belt 45; secondly, when the second pulley 47 and the first pulley 46 cannot be completely aligned due to space limitations, the tilt angle can adjust the wrap angle of the belt 45, optimize the transmission contact area, and reduce wear; finally, the non-fixed angle allows the motor base plate 39 and the main base 35 to adopt a split structure, which is convenient for separate disassembly and maintenance or adaptation to different models of motors; The spring bracket 43 is located on one side of the main base 35. The inner cavity of the main base 35 is equipped with a guide shaft 44. Guide shaft covers 36 are provided at both ends of the guide shaft 44 to fix the axial position of the guide shaft 44. A preset inclination angle is formed between the guide shaft 44 and the table 48, and its range is adjusted according to the stroke requirements of the shoveling, the eccentricity of the camshaft 38 and adaptability.

[0023] The thorn-raising device 2 also includes: a cylinder seat 24, a knife seat 25, a small copper sleeve 26, a knife sleeve 27, a knife 28, a knife seat shaft 29, a spring 1 30, a guide shaft bracket 31, a copper sleeve 32, a pad 33, a cylinder 34 and a spring 2 50. Copper sleeves 32 are provided at both ends of the shaft hole of the guide shaft bracket 31, and a spring 1 30 and a pad 33 are provided on the right side of the guide shaft bracket 31. The pad 33 can be a copper pad. The use of the copper sleeve 32 and the pad 33 can reduce movement friction and improve component durability; the left side of the guide shaft bracket 31 is fixedly connected to the cylinder seat 24, the knife seat 25 is connected to the cylinder seat 24, a knife seat shaft 29 is provided on the knife seat 25, and a plurality of knife sleeves 27 are arranged in sequence on the knife seat 25. The number of knife sleeves 27 here is preferably 5-15, which can be The number of the tool holders 27 is 5, 7, 11, 13, and 15, but not limited thereto. When the number of the tool holders 27 is ≥ 5 (e.g., 13) and the preset program is used, the density of the hooks is increased to 5 to 6 puncture points per square centimeter, and the adhesion is improved. The tool holders 27 are provided with round holes that rotate with the tool holder shaft 29. Each tool holder 27 is provided with a tool 28. The tool holders 27 wrap and fix the tool 28 to provide protection and positioning functions. The height of all tools 28 can be kept consistent, and the height of the tool 28 can be adjusted according to processing needs. A through hole is provided on the tool holder 25 corresponding to each tool holder 27. A small copper sleeve 26 is provided in the through hole. The small copper sleeve 26 provides a guide function for the extension and retraction of the cylinder 34. A cylinder 34 is provided on the cylinder holder 24 corresponding to each tool holder 27. The tool 28 is mounted on the tool sleeve 27 via a height adjustment screw. The height of the tool 28 can be calibrated by turning the adjustment screw.

[0024] Furthermore, by simply selecting the extension and retraction of the cylinder 34 push rod through the setting program, it is possible to meet the requirements of whether to burr or not at different positions of the steel back; and thus, without changing the tool 28 and the mold, the burr processing requirements of burr areas of different shapes on different models of steel backs can be met. The carrier transverse movement device 1 also includes: a bearing seat 5, a carrier plate 6, a nut 17, a guide rail 8, a bearing 3 10, a bearing 2 9, a bearing 4 12, a screw bearing seat 13, a bearing cover 14, a screw shaft 15, a nut 2 16, a stop washer 17, a first motor 18, a motor plate 19, an electromagnet 20, a roller chain 21, a first roller sprocket 22, a second roller sprocket 23 and a wear-resistant strip 51, wherein the guide rail 8 is a straight line, the carrier plate 6 is fixedly connected to the slider of the guide rail 8 and can slide freely on the guide rail 8, the nut 1 7 is fixedly connected to the carrier plate 6, and the screw shaft 15 is provided with a screw thread; the bearing seat 5 is provided with a bearing 2 9 and a bearing 3 10, and the nut 2 16 fastens the screw shaft 15, the bearing 2 9 and the bearing 3 10 with the cooperation of the stop washer 17, which plays the role of axial locking and component fixation to prevent loosening; the left end of the screw shaft 15 is provided with a bearing 4 12, bearing four 12 is fixed in the screw bearing seat 13 by the bearing cover 14, and the screw shaft 15 can rotate under the support of bearing two 9, bearing three 10 and bearing four 12. Bearing two 9 and bearing four 12 can be rolling bearings, which respectively support the two ends of the screw shaft 15 to reduce friction and ensure rotation accuracy. Bearing three 10 can be a thrust bearing, which bears the axial load of the screw shaft 15 and prevents axial movement; the left end of the screw shaft 15 is provided with a second roller sprocket 23, and the second roller sprocket 23 is connected to the first roller sprocket 22 through a roller chain 21; the first roller sprocket 22 is connected to the first motor 18, and the first motor 18 drives the first roller sprocket 22 to rotate, and then drives the second roller sprocket 23 and the screw shaft 15 to rotate. The screw shaft 15 drives the nut one 7 and the carrier plate 6 along the guide rail 8 to move the target workpiece to the position to be processed and ensure the correct movement amount of the target workpiece during the processing.

[0025] The carrier plate 6 is provided with an electromagnet 20 and a wear strip 51. The suction force of the electromagnet 20 ensures that the target workpiece is correctly and securely clamped on the carrier plate 6. The electromagnet 20 and the wear strip 51 are integrated into the carrier plate 6. The electromagnet 20 is used to absorb or release the steel backing, and the wear strip 51 reduces friction loss between the carrier plate 6 and the steel backing. Example

[0026] The method for using the device of embodiment 1 includes the following steps: S0. According to the steel back model in the control program, the tool sleeve 27 work sequence is selected, the coordinate instruction contains the thorn position matrix and activation timing of each tool sleeve 27; S1. Place the steel back on the carrier plate 6; S2. The first motor 18 drives the screw shaft 15 and then drives the carrier plate 6 to remain stationary after reaching the specified position; S3. Adjust the height of the tool 28 to keep all tool heights consistent. The tool height 28 can be adjusted according to processing needs; S4 according to the preset program to control the cylinder 34 push rod extension, to meet the different positions of the steel back from the thorn or not; S5. The thorn section 2 is installed in the power section 3 and moves forward along the guide shaft 44. After moving to the front distance, the thorn section 2 is installed under the joint action of a spring 30 and the cam shaft 38, returns to the initial position, and the thorn action is completed once. S6. The above-mentioned burring action is continuously repeated until the burring process of a steel back part is completed; when a steel back part requires burring in opposite directions, after completing the burring process in one direction, the clamping direction of the steel back is reversed 180 degrees and the above-mentioned burring process is completed. Figure 9 The steel back is shown as produced by the apparatus and method of the present invention.

[0027] When a certain tool 28 is not performing burring processing, the push rod of the cylinder 34 pushes the tool sleeve 27 to rotate upward by a certain angle through the through hole and the small copper sleeve 26, and then the tip of the tool leaves the burring plane of the steel back. When the tool 28 needs to resume the burring action, the push rod of the cylinder 34 is retracted, and the spring 2 50 can be a compression spring, which is located above the tool sleeve 27 to provide a reset elastic force to assist the tool 28 to return to its position. Under the action of gravity and the spring 2 50, the tool sleeve 27 rotates downward, and then the tip of the tool 28 returns to the burring plane of the steel back to perform the burring action.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A steel back automatic thorn removal device, characterized in that: The device comprises: A frame assembly, wherein the frame assembly is provided with a table and a base frame; A power unit assembly, the power unit assembly is fixedly connected to the table, and the power unit assembly includes a guide shaft, a second motor, and a camshaft; The thorn-raising part is equipped with a guide shaft bracket, the guide shaft bracket is provided with a shaft hole and is slidably matched with the guide shaft; the thorn-raising part is equipped with a spring 1, one end of which is connected to the power part; A carrier transverse moving device is fixedly connected to the table via a guide rail, a carrier plate is fixedly connected to a slider of the guide rail, and the carrier plate is provided with an electromagnet for fixing a steel back. The carrier transverse moving device is fixedly connected to the base frame via a first motor, and the first motor drives a screw shaft to drive the carrier plate to move transversely; Wherein, the pricking part is installed on the carrier transverse moving part and performs the pricking action when it moves to the target position, and reciprocates under the action of the spring and the cam shaft.

2. The automatic steel back thorn removal device according to claim 1, characterized in that: The power unit also includes: A main engine seat, wherein the guide shaft is arranged in the main engine seat, and bearings 1 are installed on both sides of the main engine seat; a motor base plate, the motor base plate being used to fix the second motor, the second motor being provided with a first pulley, the motor base plate being connected to the main engine base; and A spring bracket is located on one side of the main frame and is fixedly connected.

3. The automatic steel back thorn removal device according to claim 2, characterized in that: The camshaft is arranged between the bearings 1, and a second pulley is installed on one side of the camshaft. The second pulley is driven to rotate by the first pulley through a belt.

4. The automatic steel back thorn removal device according to claim 1, characterized in that: Guide shaft covers are provided at both ends of the guide shaft. The guide shaft and the table are formed to form a preset inclination angle, the range of which is adjusted according to the eccentricity of the cam shaft and the shoveling stroke.

5. The automatic steel back thorn removal device according to claim 1, characterized in that: The thorn-raising device also includes: A cylinder seat, the cylinder seat being fixedly connected to the guide shaft bracket; A tool holder connected to the cylinder holder, the tool holder being provided with a tool holder shaft and a plurality of tool sleeves rotatably engaged with the tool holder shaft, the number of the tool sleeves being preferably 5-15, more preferably 13; Wherein, a knife is provided in the knife sheath.

6. The automatic steel back thorn removal device according to claim 5, characterized in that: The knife sleeve is provided with an adjusting screw.

7. The automatic steel back thorn removal device according to claim 5, characterized in that: The thorn-raising device also includes: Copper sleeves, the copper sleeves are arranged at both ends of the shaft hole of the guide shaft bracket; A through hole is provided at a position of the knife seat corresponding to the knife sleeve, and a small copper sleeve is provided in the through hole; A cylinder, the cylinder being arranged at a position of the cylinder seat corresponding to the tool sleeve; and Spring 2, the spring 2 connects the knife seat and the knife sleeve.

8. The automatic steel back thorn removal device according to claim 1, characterized in that: The carrier lateral movement device also includes: Nut 1, the nut 1 is fixedly connected to the carrier plate; A bearing seat, wherein a second bearing and a third bearing are arranged in the bearing seat; Nut 2, the nut 2 fastens the screw shaft, the bearing 2 and the bearing 3.

9. The automatic steel back thorn removal device according to claim 8, characterized in that: The carrier transverse moving part is equipped with a screw bearing seat, and the carrier transverse moving part further includes: Bearing four, said bearing four being fixed in said screw bearing seat via a bearing cover; a first roller sprocket connected to the first motor; A second roller sprocket is connected to the first roller sprocket via a roller chain.

10. The method for using the device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S0. According to the steel back model in the control program, the tool sleeve work sequence is selected, and the work sequence contains at least 5 coordinate instructions for activating the tool sleeve; S1. Place the steel back on the carrier; S2. The first motor drives the screw shaft, which in turn drives the carrier plate to a specified position and remains stationary; S3. Adjusting the tool height can keep all tool heights consistent. The tool height can be adjusted according to processing needs. S4. Control the extension and retraction of the cylinder push rod according to the preset program to meet the requirements of different positions of the steel back; S5. The thorn-lifting portion is installed in the power unit and moves forward along the guide shaft. After moving to the front distance, the thorn-lifting portion is installed under the joint action of a spring and a camshaft and returns to the initial position, completing a thorn-lifting action; S6. The above-mentioned burring action is continuously repeated until the burring process of a steel back part is completed; when a steel back part requires burring in opposite directions, after completing the burring process in one direction, the clamping direction of the steel back is reversed 180 degrees and the above-mentioned burring process is completed.

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