Steel backing tapping machine and tapping method

Abstract

The invention relates to the technical field of tapping machines, and provides a steel backing tapping machine and a tapping method.The steel backing tapping machine comprises a workbench, a steel backing body is arranged at the top of the workbench, and a fixing device is arranged at the top of the workbench; the fixing device comprises a fixing plate, the side face of the fixing plate is fixedly connected with the side face of the workbench, a motor is fixedly connected to the side face of the fixing plate, an output shaft of the motor is fixedly connected with a reciprocating lead screw, the circumferential face of the reciprocating lead screw is in threaded connection with a threaded block, and a tapping cutter is fixedly connected to the bottom of the threaded block. The side face of the threaded block is fixedly connected with a fixing block. By means of the technical scheme, the problems that in the prior art, the effect of fixing the steel backing body is difficult to achieve, deviation of the position of the steel backing body in the machining process is difficult to prevent, machining errors are increased, excessive extrusion of the steel backing body is difficult to prevent, and the service life of equipment and materials is shortened are solved.

Description

Technical Field

[0001] The invention relates to the technical field of tapping machines, and in particular to a steel back tapping machine and a tapping method. Background Art

[0002] With the development of society, the performance and speed of vehicles are increasing day by day. In order to increase the stability of braking when the vehicle is driving at high speed, disc brakes have become the mainstream brake system. The working principle of the disc brake system is to install a disc that rotates synchronously with the wheel on the hub, and install calipers on the front fork and the frame, and then clamp the disc through the brake pads in the caliper to achieve the braking effect. However, the surface of the steel back of the brake pads on the market that contacts the caliper is mostly only painted with paint to prevent rust, or coated with a layer of rubber to prevent rust or shock absorption.

[0003] According to a publicly disclosed tapping machine for malleable cast iron castings (publication number: CN220805757U), it includes a workbench, a conveyor belt and a disc, a conveyor belt is arranged at one end of the workbench, a first motor is arranged at the top of the workbench at one end of the conveyor belt, a disc is arranged at the output end of the first motor, a plurality of grooves are arranged around the disc, a discharge trough is arranged at the adjacent position of the disc on the workbench, a first baffle is arranged at the end of the disc away from the discharge trough, a second baffle is arranged at the end of the disc close to the discharge trough, a first hydraulic rod is arranged at the end of the workbench away from the first motor, a pressure block is arranged at one end of the hydraulic rod, a support frame is arranged at one end of the workbench at the first hydraulic rod, and a tap is arranged at one end of the support frame. However, in the above-mentioned device, it is difficult to achieve the function of fixing the steel back body through the mutual cooperation of components such as the workbench, the conveyor belt and the disc, and it is difficult to prevent the position of the steel back body from shifting during the processing, which increases the processing error, and it is difficult to prevent excessive extrusion of the steel back body, which shortens the service life of the equipment and materials, and needs to be improved. Summary of the invention

[0004] The present invention provides a steel back tapping machine and a tapping method, which solve the problems raised in the above background technology.

[0005] The technical solution of the present invention is as follows: a steel back tapping machine, comprising a workbench, a steel back body is arranged on the top of the workbench, and a fixing device is arranged on the top of the workbench; The top of the workbench is fixedly connected with a block, and the top of the block is slidably connected with the working table, and the top of the block is slidably connected with the working table, and the upper and lower ends of the block are slidably connected with the working table, and the lower ends of the block are slidably connected with the working table.

[0006] The circumferential surface of the rotating shaft is fixedly connected to the side surface of the pressure rod, and the side surface of the mounting block is fixedly connected to an end of the positioning rod away from the sliding rod.

[0007] One end of the fixing block is arranged as an inclined surface, the pulley is located on the moving track of the fixing block, a limiting rod is passed through the side surface of the threaded block, and one end of the limiting rod is fixedly connected to the side surface of the fixing plate.

[0008] A cleaning and heat dissipation device is provided on the top of the workbench, and the cleaning and heat dissipation device includes an extrusion block, which is fixedly connected to the top of the pressure rod, the side of the fixed plate is rotatably connected to a rotating rod, the circumferential surface of the rotating rod is fixedly connected to a gear plate, the circumferential surface of the reciprocating screw is fixedly connected to a gear, the side of the fixed plate is rotatably connected to a rotating shaft, the side of the rotating shaft is fixedly connected to an air gun, and the circumferential surface of the rotating shaft is fixedly connected to a half gear.

[0009] The side surface of the gear meshes with the side surface of the gear plate, and the side of the half gear with the tooth block meshes with the side surface of the gear plate.

[0010] A torsion spring is fixedly connected to the circumferential surface of the rotating shaft, one end of the torsion spring away from the rotating shaft is fixedly connected to the side surface of the fixing plate, and the initial state of the torsion spring is a relaxed state.

[0011] A feeding device is provided on the top of the workbench, and the feeding device includes a connecting rod, the connecting rod passes through the side of the workbench, the circumferential surface of the connecting rod is fixedly connected to a feeding plate, the circumferential surface of the connecting rod is fixedly connected to a bevel gear, the side of the mounting block is fixedly connected to a fixing rod, the end of the fixing rod away from the mounting block is fixedly connected to a rack rod, the side of the workbench is rotatably connected to a round rod, the circumferential surface of the round rod is fixedly connected to a rotating gear, the circumferential surface of the round rod is fixedly connected to a bevel gear, the inner wall of the feeding plate is fixedly connected to a long rod, the circumferential surface of the long rod is rotatably connected to a roller, the side of the workbench is rotatably connected to a torsion spring rod, the circumferential surface of the torsion spring rod is fixedly connected to a buffer plate, and the top of the buffer plate is fixedly connected to a rubber strip.

[0012] The bottom of the rack rod is meshed with the side surface of the rotating gear, and the side surface of the helical gear is meshed with the side surface of the bevel gear.

[0013] The initial state of the torsion spring rod is a relaxed state, the number of the rubber strips is set to be a plurality, and the rubber strips are arranged along a linear array on the top of the buffer plate, and a positioning block is fixedly connected to the side of the half gear.

[0014] A tapping method for a steel back tapping machine, comprising: S1: The reciprocating screw is driven by a motor to rotate, and the rotation of the reciprocating screw drives the thread block to move, the thread block is limited by a limit rod on the side of the thread block, and the thread block moves to drive the tapping tool to move; S2: The displacement of the threaded block drives the fixed block to move, and then the displacement of the fixed block causes the inclined surface of the fixed block to squeeze the pulley, so that the pulley drives the slide rod to move; S3: The slider pulls the rotating rod to move, so that the pressure rod rotates along the rotating axis, so that the end of the pressure rod close to the steel back body rotates downward to press the steel back body.

[0015] The working principle and beneficial effects of the present invention are: 1. In the present invention, the force of the reciprocating screw driven by the motor to rotate cooperates with the components such as the threaded block, the fixed block and the mounting block in the fixing device to achieve the function of fixing the steel back body and prevent the position of the steel back body from shifting during the processing. Through the precise control of the pressure rod, the steel back body remains stable during the processing, avoiding position shift or damage, ensuring the precise positioning of the tapping tool and the fixed block, reducing processing errors, and the limit system effectively prevents excessive extrusion of the steel back body, thereby extending the service life of the equipment and materials.

[0016] 2. In the present invention, the force of the extrusion block driven to move by lifting the pressure rod cooperates with the force in the cleaning and heat dissipation device and components such as the helical gear, bevel gear and positioning block, and realizes the function of driving the rotating shaft to rotate by the half gear, and then driving the air gun to rotate by the rotation of the rotating shaft, so as to achieve the effect of blowing away the waste chips generated in the processing process by the air gun jet. The air gun is aimed at the tapping tool for heat dissipation, which can effectively reduce the temperature of the tapping tool during operation and prevent damage to the tool or affect the processing quality due to overheating. The air gun jet can effectively remove the waste chips generated in the processing process and prevent the accumulation of waste chips from affecting the processing quality, thereby ensuring the cleanliness of the working area and improving the operating efficiency and processing safety of the equipment.

[0017] 3. In the present invention, the force of the fixed rod driven by the displacement of the mounting block cooperates with the components such as the rack rod, torsion spring rod and buffer plate in the unloading device, so that the unloading plate is driven to rotate by the rotation of the connecting rod, the unloading plate is tilted, and the steel back body on the top of the unloading plate slides down, thereby achieving a buffering effect. The design of the buffer plate and the application of the torsion spring rod effectively absorb the impact force of the steel back body during the falling process, reducing damage to the equipment and the steel back body. The reset function of the buffer plate ensures the stability of the equipment and the reliability of long-term operation, ensuring that the steel back body can slide smoothly and accurately to the predetermined position, reducing errors and deviations. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 It is a schematic diagram of the three-dimensional appearance structure of the present invention; Figure 2 It is a three-dimensional side view structural schematic diagram of the clamping block of the present invention; Figure 3 It is a three-dimensional enlarged structural schematic diagram of the pressure rod of the present invention; Figure 4 It is a three-dimensional side view structural schematic diagram of the limit rod of the present invention; Figure 5 It is a three-dimensional enlarged structural schematic diagram of the motor of the present invention; Figure 6 It is a three-dimensional side view structural schematic diagram of the rubber strip of the present invention; Figure 7 It is a three-dimensional enlarged structural schematic diagram of the helical gear of the present invention; Figure 8 For the present invention Figure 4 Schematic diagram of the three-dimensional enlarged structure of A in the middle.

[0020] In the figure: 101, workbench; 102, steel back body; 2, fixing device; 201, fixing plate; 202, motor; 203, reciprocating screw; 204, thread block; 205, limit rod; 206, fixing block; 207, slide rod; 208, pulley; 209, clamping block; 210, mounting block; 211, slide groove; 212, slider; 213, rotating rod; 214, supporting plate; 215, rotating shaft; 216, pressure rod; 217, positioning rod; 218, tapping tool; 3, cleaning heat dissipation device; 3 01, extrusion block; 302, gear; 303, rotating rod; 304, gear plate; 305, rotating shaft; 306, torsion spring; 307, air gun; 308, half gear; 309, positioning block; 4, unloading device; 401, connecting rod; 402, unloading plate; 403, long rod; 404, roller; 405, bevel gear; 406, round rod; 407, bevel gear; 408, rotating gear; 409, fixing rod; 410, rack rod; 411, torsion spring rod; 412, buffer plate; 413, rubber strip. DETAILED DESCRIPTION

[0021] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Example 1 like Figures 1 to 8As shown, this embodiment proposes a steel back tapping machine, including a workbench 101, a steel back body 102 is arranged on the top of the workbench 101, and a fixing device 2 is arranged on the top of the workbench 101; the fixing device 2 includes a fixing plate 201, the side of the fixing plate 201 is fixedly connected to the side of the workbench 101, the side of the fixing plate 201 is fixedly connected to a motor 202, the output shaft of the motor 202 is fixedly connected to a reciprocating screw rod 203, the circumferential surface of the reciprocating screw rod 203 is threadedly connected to a thread block 204, the bottom of the thread block 204 is fixedly connected to a tapping cutter 218, the side of the thread block 204 is fixedly connected to a fixing block 206, the workbench 10 1 is slidably connected with a slide bar 207 at the top, a pulley 208 is fixedly connected to one end of the slide bar 207, and a positioning rod 217 is fixedly connected to the other end of the slide bar 207. A clamping block 209 is fixedly connected to the top of the workbench 101, and a mounting block 210 is slidably connected to the top of the clamping block 209. A sliding groove 211 is provided on the side of the mounting block 210, and a slider 212 is slidably connected to the side of the sliding groove 211. A rotating rod 213 is fixedly connected to the side of the slider 212, and a pressure rod 216 is rotatably connected to the circumferential surface of the rotating rod 213. A supporting plate 214 is fixedly connected to the top of the workbench 101, and a rotating shaft 215 is rotatably connected to the side of the supporting plate 214. The circumferential surface of the rotating shaft 215 is fixedly connected to the side of the pressure rod 216, and the side of the mounting block 210 is fixedly connected to one end of the positioning rod 217 away from the slide bar 207. One end of the fixed block 206 is set as an inclined surface, the pulley 208 is located on the motion track of the fixed block 206, the side of the threaded block 204 passes through the limit rod 205, and one end of the limit rod 205 is fixedly connected to the side of the fixed plate 201. A cleaning and heat dissipation device 3 is set on the top of the workbench 101, and the cleaning and heat dissipation device 3 includes an extrusion block 301, which is fixedly connected to the top of the pressure rod 216, a rotating rod 303 is rotatably connected to the side of the fixed plate 201, and the circumferential surface of the rotating rod 303 is fixedly connected to the gear plate 304, and the circumferential surface of the reciprocating screw 203 is fixedly connected to the gear 302, and the side of the fixed plate 201 is rotatably connected to the rotating shaft 305, and the side of the rotating shaft 305 is fixedly connected to the air gun 307, and the circumferential surface of the rotating shaft 305 is fixedly connected to the half gear 308. The side surface of the gear 302 meshes with the side surface of the gear plate 304 , and the side of the half gear 308 having the tooth block meshes with the side surface of the gear plate 304 .A torsion spring 306 is fixedly connected to the circumferential surface of the rotating shaft 305, and one end of the torsion spring 306 away from the rotating shaft 305 is fixedly connected to the side of the fixed plate 201. The initial state of the torsion spring 306 is a relaxed state. Through the precise control of the pressure rod 216, the steel back body 102 remains stable during the processing, avoiding position displacement or damage, ensuring the precise positioning of the tapping tool 218 and the fixed block 206, reducing processing errors, and the limit system effectively prevents excessive extrusion of the steel back body 102, extending the service life of the equipment and materials. The air gun 307 is aimed at the tapping tool 218 for heat dissipation, which can effectively reduce the temperature of the tapping tool 218 during operation, preventing damage to the tool or affecting the processing quality due to overheating. The air gun 307 can effectively remove waste chips generated during the processing to prevent the accumulation of waste chips from affecting the processing quality, ensuring the cleanliness of the working area, and improving the operating efficiency and processing safety of the equipment.

[0023] In this embodiment, the present application drives the reciprocating screw 203 to rotate through the motor 202, and then drives the threaded block 204 to move through the rotation of the reciprocating screw 203, and limits the threaded block 204 through the limit rod 205 on the side of the threaded block 204, and then drives the tapping tool 218 to move through the displacement of the threaded block 204, so that the position of the tapping tool 218 can be adjusted, and the fixed block 206 is displaced through the displacement of the threaded block 204, and then the inclined surface of the fixed block 206 is squeezed by the displacement of the fixed block 206, so that the pulley 208 drives the sliding rod 207 to move, and then the positioning rod 217 is displaced by the displacement of the sliding rod 207, and the installation is driven by the displacement of the positioning rod 217. The block 210 is displaced along the clamping block 209, and then the displacement of the mounting block 210 drives the slider 212 to be displaced, and the slider 212 pulls the rotating rod 213 to be displaced, so that the pressure rod 216 is rotated along the rotating shaft 215, so that the pressure rod 216 is close to the end of the steel back body 102 and rotates downward to press the steel back body 102. When the inclined surface of the fixed block 206 is away from the pulley 208, the side of the pulley 208 contacts the side of the fixed block 206, and the slide bar 207 stops displacing, so that the pressure rod 216 stops displacing after pressing on the top of the steel back body 102, preventing excessive extrusion and damage to the steel back body 102, thereby achieving the function of fixing the steel back body 102 and preventing the position of the steel back body 102 from shifting during the processing.

[0024] After the pressure rod 216 fixes the steel back body 102, the tapping cutter 218 starts to work, and the air port of the air gun 307 is now aimed at the tapping cutter 218 to dissipate heat for the tapping cutter 218 to prevent the parts from being damaged by excessive temperature. When the processing of the steel back body 102 is completed, the pressure rod 216 will be lifted upward, and the pressing block 301 will be moved by lifting the pressure rod 216, and then the pressing block 301 will squeeze the inclined surface of the positioning block 309, so that the positioning block 309 drives the half gear 308 to move, so that the half gear 308 and the gear plate 304 are on the same horizontal line, and the gear 302 is driven to rotate by the reciprocating screw rod 203. , and then the gear 302 rotates to drive the gear plate 304 to rotate. When the side of the half gear 308 with the tooth block is meshed with the gear plate 304, the gear plate 304 drives the half gear 308 to rotate, and the rotating shaft 305 is driven to rotate through the half gear 308, and then the rotating shaft 305 drives the air gun 307 to rotate. When the side of the half gear 308 with the tooth block is disengaged from the gear plate 304, the rotating shaft 305 is reset by the elastic force of the torsion spring 306, so that the waste chips generated in the processing process are blown away by the air gun 307. The setting of the roller 404 further speeds up the feeding speed and improves the production efficiency.

[0025] Example 2 like Figures 1 to 8As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment further proposes a steel back tapping machine, a feeding device 4 is arranged on the top of the workbench 101, and the feeding device 4 includes a connecting rod 401, the connecting rod 401 runs through the side of the workbench 101, the circumferential surface of the connecting rod 401 is fixedly connected with a feeding plate 402, the circumferential surface of the connecting rod 401 is fixedly connected with a bevel gear 405, the side of the mounting block 210 is fixedly connected with a fixing rod 409, and the end of the fixing rod 409 away from the mounting block 210 is fixedly connected with a gear The bar 410 and the side of the workbench 101 are rotatably connected to the round bar 406, the circumferential surface of the round bar 406 is fixedly connected to the rotating gear 408, the circumferential surface of the round bar 406 is fixedly connected to the bevel gear 407, the inner wall of the blanking plate 402 is fixedly connected to the long bar 403, the circumferential surface of the long bar 403 is rotatably connected to the roller 404, the side of the workbench 101 is rotatably connected to the torsion spring rod 411, the circumferential surface of the torsion spring rod 411 is fixedly connected to the buffer plate 412, and the top of the buffer plate 412 is fixedly connected to the rubber strip 413. The bottom of the rack bar 410 meshes with the side of the rotating gear 408, and the side of the helical gear 405 meshes with the side of the bevel gear 407. The initial state of the torsion spring rod 411 is a relaxed state, the number of rubber strips 413 is set to be a number, and along a linear array at the top of the buffer plate 412, the side of the half gear 308 is fixedly connected with a positioning block 309. The design of the buffer plate 412 and the application of the torsion spring rod 411 effectively absorb the impact force of the steel back body 102 during the falling process, reducing damage to the equipment and the steel back body 102. The reset function of the buffer plate 412 ensures the stability of the equipment and the reliability of long-term operation, ensuring that the steel back body 102 can slide smoothly and accurately to the predetermined position, reducing errors and deviations.

[0026] In this embodiment, when the processing of the steel back body 102 is completed, the displacement of the mounting block 210 drives the fixed rod 409 to be displaced, and then the displacement of the fixed rod 409 drives the rack rod 410 to be displaced, and the displacement of the rack rod 410 drives the rotating gear 408 to rotate, and then the rotation of the rotating gear 408 drives the round rod 406 to rotate, and the rotation of the round rod 406 drives the bevel gear 407 to rotate, and then the rotation of the bevel gear 407 drives the helical gear 405 to rotate, and the rotation of the helical gear 405 drives the connecting rod 401 to rotate, and the rotation of the connecting rod 401 drives the blanking plate 402 to rotate, so that the blanking plate 402 is tilted, and the steel back body 102 on the top of the blanking plate 402 slides down. The setting of the roller 404 speeds up the blanking speed, and the steel back body 102 falls on the buffer plate 412, and the buffer plate 412 is reset by the torsion of the torsion spring rod 411, thereby achieving a buffering effect.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel back tapping machine, characterized in that: It comprises a workbench (101), a steel back body (102) is arranged on the top of the workbench (101), and a fixing device (2) is arranged on the top of the workbench (101); The fixing device (2) comprises a fixing plate (201), the side of the fixing plate (201) is fixedly connected to the side of the workbench (101), the side of the fixing plate (201) is fixedly connected to a motor (202), the output shaft of the motor (202) is fixedly connected to a reciprocating screw rod (203), the circumferential surface of the reciprocating screw rod (203) is threadedly connected to a thread block (204), the bottom of the thread block (204) is fixedly connected to a tapping tool (218), the side of the thread block (204) is fixedly connected to a fixing block (206), the top of the workbench (101) is slidably connected to a sliding rod (207), and one end of the sliding rod (207) is fixedly connected to a pulley (208). ), the other end of the slide rod (207) is fixedly connected to a positioning rod (217), the top of the workbench (101) is fixedly connected to a clamping block (209), the top of the clamping block (209) is slidably connected to a mounting block (210), a side of the mounting block (210) is provided with a slide groove (211), the side of the slide groove (211) is slidably connected to a slider (212), the side of the slider (212) is fixedly connected to a rotating rod (213), the circumferential surface of the rotating rod (213) is rotatably connected to a pressure rod (216), the top of the workbench (101) is fixedly connected to a support plate (214), and the side of the support plate (214) is rotatably connected to a rotating shaft (215).

2. A steel back tapping machine according to claim 1, characterized in that: The circumferential surface of the rotating shaft (215) is fixedly connected to the side surface of the pressure rod (216), and the side surface of the mounting block (210) is fixedly connected to an end of the positioning rod (217) away from the sliding rod (207).

3. A steel back tapping machine according to claim 2, characterized in that: One end of the fixed block (206) is arranged as an inclined surface, the pulley (208) is located on the movement track of the fixed block (206), a limiting rod (205) passes through the side surface of the threaded block (204), and one end of the limiting rod (205) is fixedly connected to the side surface of the fixed plate (201).

4. A steel back tapping machine according to claim 3, characterized in that: A cleaning and heat dissipation device (3) is arranged on the top of the workbench (101), and the cleaning and heat dissipation device (3) comprises an extrusion block (301), the extrusion block (301) is fixedly connected to the top of the pressure rod (216), the side of the fixed plate (201) is rotatably connected to a rotating rod (303), the circumferential surface of the rotating rod (303) is fixedly connected to a gear plate (304), the circumferential surface of the reciprocating screw (203) is fixedly connected to a gear (302), the side of the fixed plate (201) is rotatably connected to a rotating shaft (305), the side of the rotating shaft (305) is fixedly connected to an air gun (307), and the circumferential surface of the rotating shaft (305) is fixedly connected to a half gear (308).

5. A steel back tapping machine according to claim 4, characterized in that: The side surface of the gear (302) meshes with the side surface of the gear plate (304), and the side of the half gear (308) having the tooth block meshes with the side surface of the gear plate (304).

6. A steel back tapping machine according to claim 5, characterized in that: A torsion spring (306) is fixedly connected to the circumferential surface of the rotating shaft (305); one end of the torsion spring (306) away from the rotating shaft (305) is fixedly connected to the side surface of the fixing plate (201); and the initial state of the torsion spring (306) is a relaxed state.

7. A steel back tapping machine according to claim 6, characterized in that: A material discharge device (4) is arranged on the top of the workbench (101), and the material discharge device (4) comprises a connecting rod (401), the connecting rod (401) passes through the side of the workbench (101), the circumferential surface of the connecting rod (401) is fixedly connected to a material discharge plate (402), the circumferential surface of the connecting rod (401) is fixedly connected to a bevel gear (405), the side of the mounting block (210) is fixedly connected to a fixing rod (409), one end of the fixing rod (409) away from the mounting block (210) is fixedly connected to a rack rod (410), and the side of the workbench (101) is fixedly connected to a fixing rod (409). A round rod (406) is rotatably connected, the circumferential surface of the round rod (406) is fixedly connected to a rotating gear (408), the circumferential surface of the round rod (406) is fixedly connected to a bevel gear (407), the inner wall of the blanking plate (402) is fixedly connected to a long rod (403), the circumferential surface of the long rod (403) is rotatably connected to a roller (404), the side of the workbench (101) is rotatably connected to a torsion spring rod (411), the circumferential surface of the torsion spring rod (411) is fixedly connected to a buffer plate (412), and the top of the buffer plate (412) is fixedly connected to a rubber strip (413).

8. A steel back tapping machine according to claim 7, characterized in that: The bottom of the rack rod (410) meshes with the side of the rotating gear (408), and the side of the helical gear (405) meshes with the side of the bevel gear (407).

9. A steel back tapping machine according to claim 8, characterized in that: The initial state of the torsion spring rod (411) is a relaxed state, the number of the rubber strips (413) is set to be a plurality, and a positioning block (309) is fixedly connected to the side of the half gear (308) at the top of the buffer plate (412) along a linear array.

10. The tapping method of a steel back tapping machine according to claim 9, characterized in that: include: S1: The reciprocating screw rod (203) is driven to rotate by the motor (202), and the rotation of the reciprocating screw rod (203) drives the thread block (204) to move, and the thread block (204) is limited by the limiting rod (205) located on the side of the thread block (204), and the displacement of the thread block (204) drives the tapping tool (218) to move; S2: The threaded block (204) is displaced to drive the fixed block (206) to move, and the fixed block 206 is displaced to cause the inclined surface of the fixed block (206) to squeeze the pulley (208), so that the pulley (208) drives the slide rod (207) to move; S3: The sliding block (212) pulls the rotating rod (213) to move, so that the pressing rod (216) rotates along the rotating shaft (215), so that the end of the pressing rod (216) close to the steel back body (102) rotates downward to press the steel back body (102).

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