Production method of wear-resistant black-line clutch facing

Abstract

The invention relates to a production method of a wear-resistant black-line clutch facing in the field of grinding machining, which comprises the following steps of: synchronously grinding the circumferential outer wall and the circumferential inner wall of the clutch facing through an inner grinding mechanism and an outer grinding mechanism when the clutch facing is ground; according to the clutch facing polishing device, the polishing pressure applied to the circumferential outer wall and the circumferential inner wall of the clutch facing is opposite in direction and equal in size, meanwhile, the polishing pressure applied to the clutch facing by the polishing device at any polishing position is offset, extrusion deformation of the clutch facing during polishing is reduced, and the polishing quality is improved; meanwhile, the clutch facing is clamped and fixed through a left clamping cylinder and a right clamping cylinder which are symmetrically clamped on the side walls of the two sides of the clutch facing, and through a pair of clamping pads fixed to the opposite sides of the left clamping cylinder and the right clamping cylinder, a cooling agent is circularly injected into heat exchange cavities in the clamping pads through an external cooling agent circulating machine during grinding, so that the clutch facing is ground; thermal deformation of the clutch facing is reduced, and the grinding quality is further improved.

Description

Technical Field

[0001] The invention relates to a clutch facing plate processing method, in particular to a wear-resistant black line clutch facing plate production method applied to the field of grinding processing. Background Art

[0002] The black line clutch face is a clutch component carefully manufactured from fiber materials. A crucial part of its processing process is to accurately grind the face to ensure that it meets the established specifications and dimensions. In view of the unique annular structure of the clutch face, the grinding process needs to fully cover its end faces, outer peripheral walls and inner hole walls. The current grinding process is to operate on these areas one by one. It is worth noting that the clutch face often has excellent wear resistance. This requires that during the grinding process, the grinding block must maintain a certain contact pressure with the machined surface to ensure that both the grinding efficiency and the grinding quality are met. However, higher grinding pressures may cause mechanical extrusion deformation of the clutch face. At the same time, the heat generated during the grinding process may also cause thermal deformation of the face. Both extrusion deformation and thermal deformation will have an adverse effect on the final processing quality.

[0003] The existing patent with publication number CN115070514A discloses a grinding process for a wear-resistant automobile clutch face plate, which relates to the technical field of automobile clutch face plate processing. The grinding process for the wear-resistant automobile clutch face plate includes the following steps: S1, surface pre-cleaning treatment: brushing and removing the burrs and impurities on the surface of the clutch face plate with a brush roller; S2, preheating treatment: adding the clutch face plate to a drying furnace for preheating, the preheating temperature is set to 260-280°C, the preheating time is controlled to 35min, and the preheating is taken out and cooled to room temperature after the preheating is completed. The present invention can control the suction fan to work, suck air from the dust suction hole, absorb the smoke generated by grinding into the inner cavity of the hollow frame, and then transport it to the inner cavity of the hollow disk through the connecting air duct one and the connecting air duct two, and the smoke is then sprayed from the elbow into the purification tube, and the smoke is filtered by the water in the inner cavity of the purification tube to filter out the dust inside, so as to achieve the function of dust reduction and avoid the problem that the smoke will cause damage to the air environment near the device.

[0004] The above patent discloses a method for grinding a clutch face plate, but does not disclose how to achieve a method for processing the clutch face plate's circumferential inner wall and circumferential outer wall to prevent extrusion deformation and thermal deformation that are easily caused during the processing. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is that the existing processing method of the clutch facing plate makes the clutch facing plate susceptible to extrusion deformation and thermal deformation during the processing.

[0006] In order to solve the above problems, the present invention provides a method for producing a wear-resistant black line clutch facing, comprising the following steps:

[0007] Step 1: Place the clutch facing into a grinding device for clamping and fixing;

[0008] Step 2: synchronously grinding the circumferential inner wall and the circumferential outer wall of the clutch facing plate, and synchronously cooling the side walls of the clutch facing plate;

[0009] Step 3: During the grinding process, the grinding pressure on the inner circumferential wall and the outer circumferential wall is adjusted in real time, so that the grinding pressure on the inner circumferential wall and the outer circumferential wall of the clutch facing plate are opposite in direction and equal in magnitude;

[0010] Step 4: After polishing, remove the clutch facing;

[0011] The grinding device in step 1 includes a left clamping cylinder and a right clamping cylinder symmetrically arranged on both sides of the clutch face plate and having the same structure. The left clamping cylinder and the right clamping cylinder are both fixedly connected to a clamping pad on one side facing the clutch face plate. A heat exchange cavity is provided in the clamping pad. The clamping pad is fixedly connected to a pair of hoses distributed up and down and connected to the heat exchange cavity. The pair of hoses are both connected to an external coolant circulation machine.

[0012] The left end of the left clamping cylinder is fixedly connected to a first hydraulic cylinder, the right end of the right clamping cylinder is fixedly connected to a fixing plate, the right end of the fixing plate is fixedly connected to a second hydraulic cylinder, and both the first hydraulic cylinder and the second hydraulic cylinder are fixedly connected to the same frame;

[0013] An internal grinding mechanism is installed on the inner side of the right clamping cylinder, and an external grinding mechanism is provided on the outer side of the right clamping cylinder. The internal grinding mechanism includes a grinding assembly and a first rotating assembly, and the external grinding mechanism includes a second rotating assembly and the same grinding assembly. The grinding assembly includes a grinding roller and a sliding block rotatably connected to the grinding roller. The end of the sliding block away from the clutch face is fixedly connected to a spring telescopic cylinder, and the end of the spring telescopic cylinder away from the sliding block is fixedly connected to an electric push rod. A force sensor for detecting the force applied to the spring telescopic cylinder is provided in the spring telescopic cylinder.

[0014] In the above-mentioned method for producing the wear-resistant black line clutch facing, the thermal deformation and extrusion deformation of the clutch facing are reduced by fixing the clamping cylinder with the clamping pad and the symmetrically arranged inner grinding mechanism and outer grinding mechanism.

[0015] As a further improvement of the present application, the first rotating assembly includes a first motor fixedly connected to the inner wall of the right clamping cylinder, the output shaft of the first motor is fixedly connected to the rotating disk, the sliding block of the internal grinding mechanism is slidably connected to the rotating disk, and the electric push rod of the internal grinding mechanism is fixedly connected to the rotating disk.

[0016] As a further improvement of the present application, the second rotating assembly includes a rotating cylinder rotatably connected to the fixed plate, a gear ring is fixedly connected to the outside of the rotating cylinder, the gear ring is meshed with a driving gear, the driving gear is fixedly connected to the output shaft of the second motor, the second motor is fixedly connected to the fixed plate, the sliding block of the external grinding mechanism is slidably connected to the rotating cylinder, and the electric push rod of the external grinding mechanism is fixedly connected to the rotating cylinder.

[0017] As a further improvement of the present application, the left clamping cylinder is a hollow cylindrical structure, and a central groove is opened in the middle thereof, an annular groove is opened in the outer part of the left clamping cylinder located at the central groove, the clamping pad is an annular structure and its outer diameter is equal to the outer diameter of the left clamping cylinder, the inner diameter of the central groove is larger than the inner diameter of the clutch face plate, and the clamping pad is made of elastic rubber material.

[0018] As a further improvement of the present application, a first fan impeller is fixedly connected to the outer wall of the rotating disk, a second fan impeller is fixedly connected to the inner wall of the rotating cylinder, a splicing cylinder is slidably connected to the outer side of the rotating cylinder, the splicing cylinder is slidably sleeved on the outer side of the left clamping cylinder, a third hydraulic cylinder is fixedly connected to the left end of the splicing cylinder, and the third hydraulic cylinder is fixedly connected to the stand; an inner chip removal pipe is fixedly connected to the lower left side of the center groove, and an outer chip removal pipe is fixedly connected to the lower left side of the splicing cylinder.

[0019] As a further improvement of the present application, the spring telescopic cylinder includes a fixed cylinder fixedly connected to the electric push rod, a piston rod fixedly connected to the sliding block is slidably connected inside the fixed cylinder, a coil spring abutting the piston rod is nested inside the fixed cylinder, one end of the coil spring away from the piston rod abuts against the sensing end of the force sensor, and the non-sensing end of the force sensor is fixedly connected to the inner wall of the fixed cylinder.

[0020] As a further improvement of the present application, the rotating disk is a disc-shaped structure and is provided with a first radial groove for the sliding block to slide. The spring telescopic cylinder and the electric push rod of the internal grinding mechanism are both installed in the first radial groove, and the electric push rod is fixedly connected to the inner wall of the first radial groove.

[0021] As a further improvement of the present application, the rotating cylinder is an annular structure, and a second radial groove is opened on its side wall. The sliding block of the external grinding mechanism is slidably connected to the second radial groove. The spring telescopic cylinder and the electric push rod of the external grinding mechanism are both installed in the second radial groove, and the electric push rod is fixedly connected to the inner wall of the second radial groove. The rotating cylinder is rotatably connected to the fixed plate through a bearing.

[0022] As a further improvement of the present application, an inner annular gap is formed between the outer wall of the rotating disk and the inner wall of the center groove, an outer annular gap is formed between the inner wall of the rotating cylinder and the outer wall of the right clamping cylinder, an inner air inlet hole connected to the inner annular gap is provided on the fixed plate and the right clamping cylinder, an outer air inlet hole connected to the outer annular gap is provided on the fixed plate, and filter screens are fixedly connected to the outer end openings of the inner air inlet hole and the outer air inlet hole.

[0023] As a further improvement of the present application, the splicing cylinder is a hollow frustoconical cylinder structure, whose inner diameter is larger than the outer diameter of the left clamping cylinder, and whose outer diameter is larger than the outer diameter of the rotating cylinder.

[0024] To summarize, the present invention grinds the circumferential outer wall and the circumferential inner wall of the clutch face plate synchronously through the inner grinding mechanism and the outer grinding mechanism when grinding the clutch face plate, so that the grinding pressures on the circumferential outer wall and the circumferential inner wall of the clutch face plate are opposite in direction and equal in magnitude, and at the same time, the grinding pressures on the clutch face plate by the grinding device at any grinding position offset each other, thereby reducing the extrusion of the clutch face plate by the grinding device, reducing the extrusion deformation of the clutch face plate during grinding, and improving the grinding quality; at the same time, by symmetrically clamping the left clamping cylinder and the right clamping cylinder on the side walls of both sides of the clutch face plate, the clutch face plate is clamped and fixed, and the stability of the clutch face plate during grinding is improved, and by a pair of clamping pads fixed on the opposite sides of the left clamping cylinder and the right clamping cylinder, the coolant is circulated and injected into the heat exchange cavity in the clamping pad through an external coolant circulator during grinding, so as to cool the clutch face plate on a large scale, avoid heat accumulation in a local area of ​​the clutch face plate during grinding, and cause thermal deformation of the clutch face plate, thereby further improving the grinding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A flowchart of this application;

[0026] Figure 2 It is a schematic diagram of the three-dimensional structure of the clutch facing plate in this application;

[0027] Figure 3 It is a schematic diagram of the three-dimensional structure of the grinding device in this application;

[0028] Figure 4 It is a schematic cross-sectional structure diagram of the grinding device in this application;

[0029] Figure 5 for Figure 4 A schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 6 It is a cross-sectional assembly diagram of the left clamping cylinder and the clamping pad in this application;

[0031] Figure 7 This is a schematic diagram of the exploded assembly of the internal grinding structure in this application;

[0032] Figure 8 It is a schematic diagram of the exploded assembly of the grinding mechanism in this application;

[0033] Fig. 9 It is a schematic diagram of the coordination of the clutch facing plate and the grinding assembly in this application;

[0034] Fig.10for Fig. 9 A schematic diagram of the enlarged structure at B in the middle;

[0035] Fig.11 It is a schematic diagram of the grinding of the inner grinding mechanism and the outer grinding mechanism;

[0036] Fig.12 It is a schematic diagram of the force on the clutch facing during grinding in this application;

[0037] Fig.13 It is a schematic diagram of the flow of airflow and debris during grinding of the grinding device in this application.

[0038] Description of the numbers in the figure:

[0039] 1. Left clamping cylinder; 101. Central groove; 102. Annular groove; 2. Right clamping cylinder; 3. Clamping pad; 301. Heat exchange chamber; 4. Hose; 5. First hydraulic cylinder; 6. Fixed plate; 601. External air inlet; 602. Internal air inlet; 7. Second hydraulic cylinder; 8. Internal grinding mechanism; 9. External grinding mechanism; 10. Rotating disk; 1001. First radial groove; 11. First motor; 12. Grinding assembly; 13. Grinding roller; 14. Sliding Block; 15, spring telescopic cylinder; 1501, fixed cylinder; 1502, piston rod; 1503, coil spring; 16, force sensor; 17, electric push rod; 18, first fan impeller; 19, rotating cylinder; 1901, second radial groove; 20, driving gear; 21, gear ring; 22, second motor; 23, second fan impeller; 24, splicing cylinder; 25, third hydraulic cylinder; 26, inner chip removal pipe; 27, outer chip removal pipe; 28, stand. DETAILED DESCRIPTION

[0040] The following describes two implementation modes of the present application in detail with reference to the accompanying drawings.

[0041] The first implementation method:

[0042] Figure 1-12 A method for producing a wear-resistant black line clutch facing is shown, comprising the following steps:

[0043] Step 1: Place the clutch facing into a grinding device for clamping and fixing;

[0044] Step 2: synchronously grinding the circumferential inner wall and the circumferential outer wall of the clutch facing plate, and synchronously cooling the side walls of the clutch facing plate;

[0045] Step 3: During the grinding process, the grinding pressure on the inner circumferential wall and the outer circumferential wall is adjusted in real time, so that the grinding pressure on the inner circumferential wall and the outer circumferential wall of the clutch facing plate are opposite in direction and equal in magnitude;

[0046] Step 4: After polishing, remove the clutch facing;

[0047] Among them, see Figure 5 and Figure 6 The grinding device in step 1 includes a left clamping cylinder 1 and a right clamping cylinder 2 which are symmetrically arranged on both sides of the clutch face plate and have the same structure. The left clamping cylinder 1 and the right clamping cylinder 2 are both fixedly connected with a clamping pad 3 on one side facing the clutch face plate. A heat exchange cavity 301 is provided in the clamping pad 3. The clamping pad 3 is fixedly connected with a pair of hoses 4 which are distributed up and down and communicated with the heat exchange cavity 301. The pair of hoses 4 are both communicated with an external coolant circulation machine. The external coolant circulation machine injects coolant into the heat exchange cavity 301 to synchronously cool the side walls of the clutch face plate during the grinding process.

[0048] See also Figure 3 and Figure 4 The left end of the left clamping cylinder 1 is fixedly connected to a first hydraulic cylinder 5, the right end of the right clamping cylinder 2 is fixedly connected to a fixing plate 6, the right end of the fixing plate 6 is fixedly connected to a second hydraulic cylinder 7, and both the first hydraulic cylinder 5 and the second hydraulic cylinder 7 are fixedly connected to the same stand 28;

[0049] See also Figure 5 and Fig.10 An inner grinding mechanism 8 is installed on the inner side of the right clamping cylinder 2, and an outer grinding mechanism 9 is arranged on the outer side of the right clamping cylinder 2. The inner grinding mechanism 8 includes a grinding assembly 12 and a first rotating assembly, and the outer grinding mechanism 9 includes a second rotating assembly and the same grinding assembly 12. The grinding assembly 12 includes a grinding roller 13 and a sliding block 14 rotatably connected to the grinding roller 13. The end of the sliding block 14 away from the clutch face is fixedly connected to a spring telescopic cylinder 15, and the end of the spring telescopic cylinder 15 away from the sliding block 14 is fixedly connected to an electric push rod 17. A force sensor 16 for detecting the force of the spring telescopic cylinder 15 is arranged in the spring telescopic cylinder 15;

[0050] See also Figure 5 and Figure 7 The first rotating assembly includes a first motor 11 fixedly connected to the inner wall of the right clamping cylinder 2, the output shaft of the first motor 11 is fixedly connected to the rotating disk 10, the sliding block 14 of the inner grinding mechanism 8 is slidably connected to the rotating disk 10, and the electric push rod 17 of the inner grinding mechanism 8 is fixedly connected to the rotating disk 10;

[0051] See also Figure 5 and Figure 8The second rotating assembly includes a rotating cylinder 19 rotatably connected to the fixed plate 6, a gear ring 21 is fixedly connected to the outer side of the rotating cylinder 19, the gear ring 21 is meshed with a driving gear 20, the driving gear 20 is fixedly connected to the output shaft of the second motor 22, the second motor 22 is fixedly connected to the fixed plate 6, the sliding block 14 of the external grinding mechanism 9 is slidably connected to the rotating cylinder 19, and the electric push rod 17 of the external grinding mechanism 9 is fixedly connected to the rotating cylinder 19.

[0052] Specifically, during polishing, the following detailed steps are included:

[0053] S1, vertically place the clutch facing plate between the left clamping cylinder 1 and the right clamping cylinder 2, then start the first hydraulic cylinder 5 and the second hydraulic cylinder 7 to clamp and fix the clutch facing plate, and make the clamping pad 3 contact with the clutch facing plate;

[0054] S2, start the external coolant circulation machine, the coolant circulation machine injects the coolant into a pair of clamping pads 3 inside the left clamping cylinder 1 and the right clamping cylinder 2 through two pairs of hoses 4 and makes the coolant circulate;

[0055] Specifically, by injecting circulating coolant into a pair of clamping pads 3 on the side walls of both sides of the clutch facing plate, when grinding the circumferential outer wall and the circumferential inner wall of the clutch facing plate, heat is more easily transferred to the coolant in the clamping pads 3 along the side walls of the clutch facing plate, thereby reducing heat accumulation of the clutch facing plate during grinding and reducing thermal deformation of the clutch facing plate;

[0056] S3, start the first motor 11 and the second motor 22 and make the angular speeds of the two motors equal, the first motor 11 drives the rotating disk 10 to rotate, the rotating disk 10 drives the grinding roller 13 of the inner grinding mechanism 8 to make a circular motion, the second motor 22 drives the driving gear 20 to rotate, the driving gear 20 drives the gear ring 21 and the rotating cylinder 19 to rotate, the rotating cylinder 19 drives the grinding roller 13 of the outer grinding mechanism 9 to make a circular motion, and the pair of grinding rollers 13 always keep relative rotation;

[0057] Specifically, the extrusion forces of the pair of grinding rollers 13 on the inner and outer sides of the clutch face plate are opposite to each other, so that the extrusion forces of the pair of grinding rollers 13 on the clutch face plate in any direction offset each other, thereby reducing the movement and vibration of the clutch face plate;

[0058] S4, starting a pair of electric push rods 17 of the inner grinding mechanism 8 and the outer grinding mechanism 9, so that a pair of grinding rollers 13 on the inner side of the clutch facing plate abut against the circumferential outer wall and the circumferential inner wall of the clutch facing plate to perform circumferential grinding;

[0059] S5, monitoring the contact pressure between the pair of grinding rollers 13 and the clutch facing plate by a pair of force sensors 16 disposed in a pair of spring telescopic cylinders 15. When the contact pressures between the two are different, adjusting the electric push rod 17 to make the contact pressures between the pair of grinding rollers 13 and the clutch facing plate equal;

[0060] Specifically, the grinding pressure of the pair of grinding rollers 13 on the clutch facing plate is precisely controlled to reduce the compression deformation of the clutch facing plate.

[0061] Compared with the traditional clutch face plate grinding method, the present invention grinds the circumferential outer wall and the circumferential inner wall of the clutch face plate synchronously through the inner grinding mechanism 8 and the outer grinding mechanism 9 when grinding the clutch face plate, so that the grinding pressures on the circumferential outer wall and the circumferential inner wall of the clutch face plate are opposite in direction and equal in magnitude, and at the same time, the grinding pressures of the grinding devices on the clutch face plate at any grinding position offset each other, reducing the extrusion of the clutch face plate by the grinding device, reducing the extrusion deformation of the clutch face plate during grinding, and improving the grinding quality; at the same time, through symmetrical The left clamping cylinder 1 and the right clamping cylinder 2 clamped on the side walls of the clutch face plate can clamp and fix the clutch face plate, improve the stability of the clutch face plate during grinding, and through a pair of clamping pads 3 fixed on the opposite sides of the left clamping cylinder 1 and the right clamping cylinder 2, the coolant is circulated and injected into the heat exchange cavity 301 in the clamping pad 3 through an external coolant circulator during grinding, so as to cool the clutch face plate on a large scale, avoid heat accumulation in the local area of ​​the clutch face plate during grinding, cause thermal deformation of the clutch face plate, and further improve the grinding quality.

[0062] See also Figure 6 The left clamping cylinder 1 is a hollow cylindrical structure, and a central groove 101 is opened in the middle thereof, and an annular groove 102 is opened in the outer part of the left clamping cylinder 1 located at the central groove 101. The clamping pad 3 is an annular structure and its outer diameter is equal to the outer diameter of the left clamping cylinder 1. The inner diameter of the central groove 101 is larger than the inner diameter of the clutch face plate, and the clamping pad 3 is made of elastic rubber material.

[0063] Specifically, during clamping, the left clamping cylinder 1 abuts against the side wall of the clutch face plate to avoid interference with the left circularly moving inner grinding mechanism 8 and the grinding roller 13 of the outer grinding mechanism 9. At the same time, the clamping pad 3 covering the side wall of the clutch face plate is used to perform heat exchange for the refrigerant circulation to reduce the diffusion of heat on the clutch face plate. At the same time, the circularly rotating grinding roller 13 reduces the local accumulation of heat on the clutch face plate. It should be noted that the inner grinding mechanism 8 is installed in the central groove 101 of the right clamping cylinder 2.

[0064] See also Figure 7 , Fig. 9 and Fig.10The spring telescopic cylinder 15 includes a fixed cylinder 1501 fixedly connected to the electric push rod 17, a piston rod 1502 fixedly connected to the sliding block 14 is slidably connected inside the fixed cylinder 1501, a coil spring 1503 abutting against the piston rod 1502 is nested inside the fixed cylinder 1501, one end of the coil spring 1503 away from the piston rod 1502 abuts against the sensing end of the force sensor 16, and the non-sensing end of the force sensor 16 is fixedly connected to the inner wall of the fixed cylinder 1501.

[0065] Specifically, the electric push rod 17 pushes the sliding block 14 and the grinding roller 13 thereon to contact the circumferential outer wall or the circumferential inner wall of the clutch surface through the spring telescopic cylinder 15. During the contact process, the coil spring 1503 is compressed, and the force sensor 16 detects the pressure exerted on the coil spring 1503, thereby obtaining the contact pressure between the grinding roller 13 and the clutch surface, and then obtaining the grinding pressure of the grinding roller 13 on the clutch surface during grinding.

[0066] See also Figure 7 The rotating disk 10 is a disc-shaped structure and is provided with a first radial groove 1001 for the sliding block 14 to slide. The spring telescopic cylinder 15 and the electric push rod 17 of the inner grinding mechanism 8 are both installed in the first radial groove 1001, and the electric push rod 17 is fixedly connected to the inner wall of the first radial groove 1001.

[0067] See also Figure 8 The rotating cylinder 19 is an annular structure, and a second radial groove 1901 is opened on its side wall. The sliding block 14 of the external grinding mechanism 9 is slidably connected to the second radial groove 1901. The spring telescopic cylinder 15 and the electric push rod 17 of the external grinding mechanism 9 are both installed in the second radial groove 1901, and the electric push rod 17 is fixedly connected to the inner wall of the second radial groove 1901. The rotating cylinder 19 is rotatably connected to the fixed plate 6 through a bearing.

[0068] Specifically, by opening the first radial groove 1001 on the rotating disk 10 and the second radial groove 1901 on the rotating cylinder 19, the sliding block 14 can stably drive the grinding roller 13 to move, and improve the stability of the grinding roller 13 during grinding, so as to facilitate monitoring of the grinding pressure of the grinding roller 13.

[0069] Second implementation method:

[0070] Figure 3 , Figure 5 , Figure 7 , Figure 8 and Fig.13A method for producing a wear-resistant black line clutch facing is shown. On the basis of the first embodiment, a first fan impeller 18 is fixedly connected to the outer wall of the rotating disk 10, a second fan impeller 23 is fixedly connected to the inner wall of the rotating cylinder 19, a splicing cylinder 24 is slidably connected to the outer side of the rotating cylinder 19, the splicing cylinder 24 is slidably sleeved on the outer side of the left clamping cylinder 1, a third hydraulic cylinder 25 is fixedly connected to the left end of the splicing cylinder 24, and the third hydraulic cylinder 25 is fixedly connected to the stand 28; an inner chip removal pipe 26 is fixedly connected to the lower left side of the center groove 101, and an outer chip removal pipe 27 is fixedly connected to the lower left side of the splicing cylinder 24.

[0071] For details, please refer to Fig.13 When the first motor 11 drives the rotating disk 10 to rotate and then drives the grinding roller 13 to grind the circumferential inner wall of the clutch facing plate, the rotating disk 10 drives the first fan impeller 18 to rotate, generating a jet airflow to blow the grinding roller 13 and the grinding debris, so that the grinding debris generated on the inner circumferential inner wall enters the central groove 101 of the left clamping cylinder 1 and is discharged through the inner chip discharge pipe 26. At the same time, when the second motor 22 drives the rotating cylinder 19 and the grinding roller 13 thereon to rotate, the rotating cylinder 19 drives the second fan impeller 23 to rotate, and the grinding debris generated on the grinding roller 13 and the circumferential outer wall of the external grinding mechanism 9 are sprayed, and the debris generated on the circumferential outer wall enters the splicing cylinder 24 with the airflow and is discharged from the outer chip discharge pipe 27. While the pair of grinding rollers 13 of the inner grinding mechanism 8 and the outer grinding mechanism 9 are cooled, the debris generated on the circumferential inner wall and the circumferential outer wall are sprayed and cleaned to prevent the debris from remaining on the grinding roller 13 and the clutch facing plate and affecting the grinding quality.

[0072] See also Fig.13 An inner annular gap is formed between the outer wall of the rotating disk 10 and the inner wall of the central groove 101, an outer annular gap is formed between the inner wall of the rotating cylinder 19 and the outer wall of the right clamping cylinder 2, an inner air inlet hole 601 communicating with the inner annular gap is formed on the fixed plate 6 and the right clamping cylinder 2, an outer air inlet hole 602 communicating with the outer annular gap is formed on the fixed plate 6, and a filter screen is fixedly connected to the outer end openings of the inner air inlet hole 601 and the outer air inlet hole 602.

[0073] Specifically, when the first fan impeller 18 and the second fan impeller 23 rotate, the external air flow enters the inner annular gap and the outer annular gap through the inner air inlet hole 601 and the outer air inlet hole 602 respectively, and sprays the grinding roller 13, the circumferential inner wall and the circumferential outer wall. The inner annular gap and the outer annular gap make the air flow more concentrated, thereby improving the effect of spraying heat dissipation and debris cleaning.

[0074] See also Figure 3 and Figure 5 The splicing cylinder 24 is a hollow truncated cone cylinder structure, whose inner diameter is larger than the outer diameter of the left clamping cylinder 1 , and whose outer diameter is larger than the outer diameter of the rotating cylinder 19 .

[0075] Specifically, the splicing cylinder 24 is provided to facilitate the collection of debris on the circumferential outer wall of the clutch facing plate. At the same time, the splicing cylinder 24 is driven to move laterally by the third hydraulic cylinder 25, so as to facilitate the installation and removal of the clutch facing plate.

[0076] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A method for producing a wear-resistant black line clutch facing, characterized in that: The steps include: Step 1: Place the clutch facing into a grinding device for clamping and fixing; Step 2: synchronously grinding the circumferential inner wall and the circumferential outer wall of the clutch facing plate, and synchronously cooling the side walls of the clutch facing plate; Step 3: During the grinding process, the grinding pressure on the inner circumferential wall and the outer circumferential wall is adjusted in real time, so that the grinding pressure on the inner circumferential wall and the outer circumferential wall of the clutch facing plate are opposite in direction and equal in magnitude; Step 4: After polishing, remove the clutch facing; The polishing device in step 1 comprises a left clamping cylinder (1) and a right clamping cylinder (2) symmetrically arranged on both sides of the clutch face plate and having the same structure, the left clamping cylinder (1) and the right clamping cylinder (2) are both fixedly connected with a clamping pad (3) on the side facing the clutch face plate, a heat exchange cavity (301) is provided in the clamping pad (3), and the clamping pad (3) is fixedly connected with a pair of hoses (4) distributed up and down and connected with the heat exchange cavity (301), and the pair of hoses (4) are both connected with an external coolant circulation machine; The left end of the left clamping cylinder (1) is fixedly connected to a first hydraulic cylinder (5), the right end of the right clamping cylinder (2) is fixedly connected to a fixing plate (6), the right end of the fixing plate (6) is fixedly connected to a second hydraulic cylinder (7), and both the first hydraulic cylinder (5) and the second hydraulic cylinder (7) are fixedly connected to the same platform (28); An inner grinding mechanism (8) is installed on the inner side of the right clamping cylinder (2), and an outer grinding mechanism (9) is installed on the outer side of the right clamping cylinder (2). The inner grinding mechanism (8) includes a grinding assembly (12) and a first rotating assembly, and the outer grinding mechanism (9) includes a second rotating assembly and a similar grinding assembly (12). The grinding assembly (12) includes a grinding roller (13) and a sliding block (14) rotatably connected to the grinding roller (13). The end of the sliding block (14) away from the clutch face plate is fixedly connected to a spring telescopic cylinder (15), and the end of the spring telescopic cylinder (15) away from the sliding block (14) is fixedly connected to an electric push rod (17). A force sensor (16) for detecting the force applied to the spring telescopic cylinder (15) is installed inside the spring telescopic cylinder (15).

2. The method for producing a wear-resistant black line clutch facing according to claim 1, characterized in that: The first rotating assembly comprises a first motor (11) fixedly connected to the inner wall of the right clamping cylinder (2); the output shaft of the first motor (11) is fixedly connected to the rotating disk (10); the sliding block (14) of the inner grinding mechanism (8) is slidably connected to the rotating disk (10); and the electric push rod (17) of the inner grinding mechanism (8) is fixedly connected to the rotating disk (10).

3. The method for producing a wear-resistant black line clutch facing according to claim 2, characterized in that: The second rotating assembly comprises a rotating cylinder (19) rotatably connected to the fixed plate (6); a gear ring (21) is fixedly connected to the outer side of the rotating cylinder (19); the gear ring (21) is meshed with a driving gear (20); the driving gear (20) is fixedly connected to the output shaft of a second motor (22); the second motor (22) is fixedly connected to the fixed plate (6); a sliding block (14) of the external grinding mechanism (9) is slidably connected to the rotating cylinder (19); and an electric push rod (17) of the external grinding mechanism (9) is fixedly connected to the rotating cylinder (19).

4. The method for producing a wear-resistant black line clutch facing according to claim 3, characterized in that: The left clamping cylinder (1) is a hollow cylindrical structure, and a central groove (101) is provided in the middle thereof; an annular groove (102) is provided in the outer portion of the left clamping cylinder (1) located outside the central groove (101); the clamping pad (3) is an annular structure, and its outer diameter is equal to the outer diameter of the left clamping cylinder (1); the inner diameter of the central groove (101) is larger than the inner diameter of the clutch face plate; and the clamping pad (3) is made of elastic rubber material.

5. The method for producing a wear-resistant black line clutch facing according to claim 4, characterized in that: The outer wall of the rotating disk (10) is fixedly connected to a first fan impeller (18), the inner wall of the rotating cylinder (19) is fixedly connected to a second fan impeller (23), the outer side of the rotating cylinder (19) is slidably connected to a splicing cylinder (24), the splicing cylinder (24) is slidably sleeved on the outer side of the left clamping cylinder (1), the left end of the splicing cylinder (24) is fixedly connected to a third hydraulic cylinder (25), and the third hydraulic cylinder (25) is fixedly connected to the stand (28); the lower left side of the central groove (101) is fixedly connected to an inner chip removal pipe (26), and the lower left side of the splicing cylinder (24) is fixedly connected to an outer chip removal pipe (27).

6. The method for producing a wear-resistant black line clutch facing according to claim 1, characterized in that: The spring telescopic cylinder (15) comprises a fixed cylinder (1501) fixedly connected to the electric push rod (17), a piston rod (1502) fixedly connected to the sliding block (14) being slidably connected inside the fixed cylinder (1501), a coil spring (1503) abutting against the piston rod (1502) being nested inside the fixed cylinder (1501), one end of the coil spring (1503) away from the piston rod (1502) abutting against the sensing end of the force sensor (16), and the non-sensing end of the force sensor (16) being fixedly connected to the inner wall of the fixed cylinder (1501).

7. The method for producing a wear-resistant black line clutch facing according to claim 2, characterized in that: The rotating disk (10) is a disk-shaped structure and is provided with a first radial groove (1001) for the sliding block (14) to slide. The spring telescopic cylinder (15) and the electric push rod (17) of the inner grinding mechanism (8) are both installed in the first radial groove (1001), and the electric push rod (17) is fixedly connected to the inner wall of the first radial groove (1001).

8. The method for producing a wear-resistant black line clutch facing according to claim 3, characterized in that: The rotating cylinder (19) is an annular structure, and a second radial groove (1901) is formed on its side wall. The sliding block (14) of the external grinding mechanism (9) is slidably connected to the second radial groove (1901). The spring telescopic cylinder (15) and the electric push rod (17) of the external grinding mechanism (9) are both installed in the second radial groove (1901), and the electric push rod (17) is fixedly connected to the inner wall of the second radial groove (1901). The rotating cylinder (19) is rotatably connected to the fixed plate (6) via a bearing.

9. The method for producing a wear-resistant black line clutch facing according to claim 5, characterized in that: An inner annular gap is formed between the outer wall of the rotating disk (10) and the inner wall of the central groove (101); an outer annular gap is formed between the inner wall of the rotating cylinder (19) and the outer wall of the right clamping cylinder (2); an inner air inlet hole (601) communicating with the inner annular gap is formed on the fixed plate (6) and the right clamping cylinder (2); an outer air inlet hole (602) communicating with the outer annular gap is formed on the fixed plate (6); and a filter screen is fixedly connected to the outer end openings of the inner air inlet hole (601) and the outer air inlet hole (602).

10. The method for producing a wear-resistant black line clutch facing according to claim 5, characterized in that: The splicing cylinder (24) is a hollow truncated cone cylinder structure, whose inner diameter is larger than the outer diameter of the left clamping cylinder (1), and whose outer diameter is larger than the outer diameter of the rotating cylinder (19).

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