Polishing equipment for tong head

Abstract

The invention provides grinding equipment for a tong head. The grinding equipment comprises a supporting assembly, a grinding assembly and a bearing assembly. The grinding assembly is connected with the supporting assembly and arranged on the upper portion of the bearing assembly. The grinding assembly is provided with a driving mechanism and a grinding wheel, the driving mechanism is configured to drive the grinding wheel to move and rotate, the driving mechanism is provided with a second through hole, the grinding wheel is provided with a grinding disc and a cavity, the second through hole communicates with the cavity, and the cavity is configured to contain a lubricant; the bearing assembly is provided with a plurality of fixing grooves, the fixing grooves are connected with the fixing bases correspondingly, the fixing bases are configured to be used for installing to-be-polished tong heads, and the bearing assembly bears the fixing bases to rotate. The supporting assembly is designed to have enough strength and stability, enough supporting force is provided for the grinding assembly, and therefore the grinding precision and efficiency are guaranteed. A driving mechanism of the polishing assembly is designed to be capable of adjusting the position and the rotating speed of a polishing wheel so as to meet the polishing requirements of tong heads of different materials and shapes.

Description

Technical Field

[0001] The invention relates to the field of tool pliers production, in particular to a grinding device for pliers heads. Background Art

[0002] Bolt cutters, also known as diagonal pliers, are a practical tool designed to cut thicker wires, wires, and cables. In the process of manufacturing bolt cutters, it is crucial to carefully process the two main parts, the handle and the pliers head. After completing the processing of these two parts, the next step is to assemble them together to ensure the overall function and performance of the tool.

[0003] In the process of processing the pliers head, grinding is an indispensable part. In order to ensure that the smoothness and quality of the pliers head surface meet the standards, the surface of the pliers head must be carefully ground to ensure the flatness and finish of the pliers head surface.

[0004] At present, in the prior art, when grinding the pliers heads, the pliers heads to be ground are usually neatly placed on the operating table. Then, the pliers heads are ground in batches by moving the grinding head. Although this batch grinding method improves production efficiency to a certain extent, it also has some limitations. For example, during the grinding process, the position of the pliers heads will move with the movement of the grinding head, resulting in inconsistent grinding effects during batch grinding, thereby affecting the final quality of the pliers heads. Summary of the invention

[0005] In order to overcome some of the problems mentioned in the above background, the present invention provides a grinding device for a pliers head.

[0006] The technical solution adopted by the present invention is as follows: a grinding device for a pliers head, comprising a supporting assembly, a grinding assembly and a bearing assembly, wherein the grinding assembly is connected to the supporting assembly, and the grinding assembly is arranged on the upper part of the bearing assembly; The grinding assembly is provided with a driving mechanism and a grinding wheel, the driving mechanism is configured to drive the grinding wheel to move and rotate, the driving mechanism is provided with a second through hole, the grinding wheel is provided with a grinding disc and a cavity, the second through hole is communicated with the cavity, and the cavity is configured to contain a lubricant; The bearing assembly is provided with a plurality of fixing grooves, the plurality of fixing grooves are respectively connected to a plurality of fixing bases, the fixing bases are configured to mount the pliers head to be sharpened, and the bearing assembly carries the fixing bases to rotate; The fixed base includes a fixed plate, a mounting groove and a fourth through hole. The mounting groove is arranged on the fixed plate, the fourth through hole is arranged in the mounting groove, and the fixed plate is arranged in the fixed groove.

[0007] Furthermore, the support assembly includes a support column, a support cross plate, a guide rail, a first through hole and a slide groove, the support cross plate is arranged at the top of the support column, the guide rail is arranged at the upper part of the support cross plate, the slide groove is arranged at one end of the support cross plate, the first through hole is arranged at the other end of the support cross plate, and the guide rail is connected to the driving mechanism.

[0008] Further, the driving mechanism includes a supporting slide, a first motor, a grinding drive shaft and a positioning member, the supporting slide is slidably connected to the supporting assembly, the first motor is arranged on the upper part of the supporting slide, the first motor is drivingly connected to the grinding drive shaft, and the first motor drives the grinding drive shaft to rotate; The positioning member is connected to the supporting assembly, and the positioning member is connected to the grinding drive shaft; The positioning member includes a slider and an adjusting rod. The adjusting rod is connected to the first through hole via a thread. The adjusting rod is fixed to the slider. The adjusting rod drives the slider to move.

[0009] Furthermore, the grinding drive shaft includes a connecting shaft, a fixing ring and a transmission wheel, the first through hole is arranged in the connecting shaft, the fixing ring is fixedly connected to the connecting shaft, the transmission wheel is fixedly connected to the connecting shaft, the fixing ring is arranged at the upper part of the supporting slide plate, the transmission wheel is arranged at the lower part of the supporting slide plate, and the transmission wheel is transmission-connected to the first motor.

[0010] Furthermore, the grinding wheel includes a fixed cover and a grinding plate, the fixed cover is fixedly connected to the connecting shaft, the grinding plate is fixedly connected to the fixed cover, a plurality of third through holes are provided on the grinding plate, the plurality of third through holes and the cavity are provided between the fixed cover and the grinding plate, and the third through holes are connected to the cavity.

[0011] Furthermore, the bearing assembly further comprises a bearing plate, the fixing groove is arranged on the bearing plate, a plurality of fixing pin holes are arranged on the side of the bearing plate, and the plurality of fixing pin holes are arranged in one-to-one correspondence with the plurality of fixing grooves; A limiting ring, a transmission block and a second motor are provided at the lower part of the bearing plate. The transmission block is arranged in the limiting ring. The second motor is connected to the transmission block. The second motor drives the bearing plate to rotate.

[0012] Furthermore, it also includes a sewage collection cover and an operating table, wherein the sewage collection cover and the support assembly are respectively arranged on the operating table, and the bearing assembly is slidably connected to the sewage collection cover; The sewage collection cover is provided with a ditch, a limiting groove and a fifth through hole. The ditch is configured to collect used lubricants. The ditch is provided with a water outlet, which is connected to an external pipeline. The limiting groove is correspondingly arranged with the limiting ring, and the fifth through hole is connected to the second motor.

[0013] Furthermore, the operating table includes a workbench and a support frame, the support frame is arranged on the workbench, and the support frame is connected to the sewage collection cover; The support frame is provided with a support frame and a support vertical plate, the second motor is arranged in the support frame, the top of the support vertical plate is arranged at the lower part of the support frame, and the bottom of the support vertical plate is fixedly connected to the workbench.

[0014] Compared with the prior art, the beneficial effects of the present invention are: The support assembly is designed to have sufficient strength and stability to provide sufficient support force for the grinding assembly to ensure the accuracy and efficiency of grinding.

[0015] The driving mechanism of the grinding assembly is designed to adjust the position and rotation speed of the grinding wheel to meet the grinding needs of pliers with different materials and shapes.

[0016] The bearing assembly rotates smoothly and continuously to ensure uniform contact of the pliers during the grinding process. The pliers are installed in a fixed base to fix the pliers to be ground to prevent the pliers from slipping during the grinding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a grinding device for a pliers head according to an embodiment of the present invention; Figure 2 It is a front view schematic diagram of a grinding device for a pliers head according to an embodiment of the present invention; Figure 3 for Figure 1 Schematic diagram of the central operating table and support components; Figure 4 for Figure 1 Schematic diagram of sewage collection hood; Figure 5 for Figure 1 A front view schematic diagram of a middle load-bearing component; Figure 6 for Figure 1 Schematic diagram of the middle load-bearing component; Figure 7 for Figure 1 Schematic diagram of the grinding assembly; Figure 8 for Figure 1 Partial cross-sectional view of the grinding component; Fig. 9 for Figure 7Schematic diagram of the middle grinding disc viewed from above; Fig.10 for Figure 1 Schematic diagram of the fixed base.

[0018] In the figure: 1. Operation table; 11. Work table; 12. Support frame; 121. Support frame; 122. Support vertical plate; 2. Support assembly; 21. Support column; 22. Guide rail; 23. First through hole; 24. Slide; 25. Support horizontal plate; 3. Grinding assembly; 31. Support slide plate; 32. First motor; 33. Grinding drive shaft; 331. Connecting shaft; 332. Second through hole; 333. Fixed ring; 334. Transmission wheel; 34. Grinding wheel; 341. Fixed cover; 3 42. Cavity; 343. Grinding disc; 344. Third through hole; 35. Positioning piece; 351. Sliding block; 352. Adjusting rod; 4. Carrying assembly; 41. Carrying plate; 42. Fixing pin hole; 43. Limiting ring; 44. Transmission block; 45. Second motor; 46. Fixing groove; 5. Fixed base; 51. Fixing plate; 52. Mounting groove; 53. Fourth through hole; 6. Sewage collecting cover; 61. Ditch; 62. Fifth through hole; 63. Limiting groove; 64. Water outlet. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] In the description of the present invention, it should be understood that terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “top”, “bottom”, “inside” and “outside” indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0021] like Figure 1 , Figure 2 , Figure 5 , Figure 6 , Figure 7As shown, in some embodiments, a grinding device for a pliers head includes a support assembly 2, a grinding assembly 3 and a bearing assembly 4. The grinding assembly 3 is stably mounted on the support assembly 2, and the support assembly 2 provides a stable supporting force for the grinding assembly 3 to ensure the stability of the grinding assembly 3 during operation. The bearing assembly 4 is arranged at the lower part of the grinding assembly 3, and the grinding assembly 3 performs a grinding operation on the pliers head on the bearing assembly 4.

[0022] Specifically, a driving mechanism and a grinding wheel 34 are provided in the grinding assembly 3, and the driving mechanism drives the grinding wheel 34 to move and rotate to realize the grinding operation of the pliers head. In particular, a second through hole 332 is provided in the driving mechanism, and the grinding wheel 34 is provided with a grinding disc 343 and a cavity 342. In addition, the driving mechanism is also designed with a second through hole 332, and the grinding wheel 34 includes a grinding disc 343 and a cavity 342. The second through hole 332 is connected to the cavity 342, and a lubricant is injected into the cavity 342 through the second through hole 332, and the lubricant is stored in the cavity 342 to ensure that the lubricant can be smoothly discharged between the grinding disc 343 and the pliers head to be ground during the grinding process.

[0023] It is worth noting that a plurality of fixing grooves 46 are provided on the bearing assembly 4, and these fixing grooves 46 are respectively connected to a plurality of fixing bases 5, and the fixing bases 5 are used to install and fix the pliers to be polished, so as to ensure that the pliers remain stable during the polishing process. The bearing assembly 4 carries the fixing bases 5 to rotate.

[0024] The surface of the bearing assembly 4 is designed with a plurality of fixing grooves 46, which are respectively connected to a plurality of fixing bases 5. The fixing bases 5 are used to install and fix the pliers to be polished, so as to ensure that the pliers remain stable during the polishing process. The bearing assembly 4 is responsible for carrying these fixing bases 5, and by rotating, the pliers to be polished are moved to the polishing assembly 3, and the polishing assembly 3 polishes them.

[0025] It is worth noting that the rotation speed of the carrier assembly 4 is set according to the desired grinding effect. After setting, first, the pliers are mounted on the fixed base 5, and then the base is fixed on the carrier assembly 4. Next, the grinding wheel 34 is adjusted to a predetermined position through the driving mechanism, and lubricant is injected into the cavity 342 through the second through hole 332. After that, the carrier assembly 4 and the grinding assembly 3 are started, and the carrier assembly 4 rotates the pliers to be ground to the grinding wheel 34, and the grinding wheel 34 performs the grinding process.

[0026] The support assembly 2 is designed to have sufficient strength and stability to provide sufficient support force for the grinding assembly 3 to ensure the accuracy and efficiency of grinding.

[0027] The driving mechanism of the grinding assembly 3 is designed to adjust the position and rotation speed of the grinding wheel 34 to meet the grinding requirements of pliers with different materials and shapes.

[0028] The rotating mechanism of the bearing assembly 4 is designed to rotate smoothly and continuously to ensure uniform contact of the pliers head during the grinding process. A fixed base 5 is installed on the bearing assembly 4 to fix the pliers head to be ground to prevent the pliers head from slipping during the grinding process.

[0029] like Figure 3 As shown, in some embodiments, the support assembly 2 includes a support column 21, a support cross plate 25, a guide rail 22, a first through hole 23 and a slide groove 24. Specifically, the support column 21 serves as the support base of the entire support assembly 2, and a support cross plate 25 is installed on the top thereof to form a stable structure. In particular, a guide rail 22 is installed on the top of the support cross plate 25, and the function of the guide rail 22 is to guide the movement of the grinding assembly 3 to ensure its smooth operation.

[0030] In addition, a slide groove 24 is provided at one end of the supporting transverse plate 25, and the slide groove 24 is slidably connected to the grinding assembly 3, so that the grinding assembly 3 moves along the slide groove 24. A first through hole 23 is provided at the other end of the supporting transverse plate 25, and the first through hole 23 is connected to the slide groove 24. The first through hole 23, the guide rail 22 and the driving mechanism cooperate with each other to ensure that the grinding assembly 3 can move accurately, thereby realizing fine grinding of the pliers head.

[0031] like Figure 7 , Figure 8 and Fig. 9 As shown, in some embodiments, the driving mechanism includes a support slide 31, a first motor 32, a grinding drive shaft 33 and a positioning member 35. Specifically, the support slide 31 is connected to the support assembly 2 by a sliding connection, so that the support slide 31 can slide on the support assembly 2. In addition, the first motor 32 is fixedly mounted on the upper part of the support slide 31, and is connected to the grinding drive shaft 33 by a transmission chain, so that the first motor 32 can drive the grinding drive shaft 33 to rotate.

[0032] In particular, the positioning member 35 is connected to the support assembly 2, and the positioning member 35 is connected to the grinding drive shaft 33, and the position of the grinding wheel 34 is adjusted by the positioning member 35. Specifically, the positioning member 35 includes a slider 351 and an adjusting rod 352, and the adjusting rod 352 is connected to the first through hole 23 on the support assembly 2 by a threaded connection, so that the adjusting rod 352 can be rotated and adjusted. The adjusting rod 352 and the slider 351 are fixedly connected by welding, so that the adjusting rod 352 can drive the slider 351 to move accordingly during rotation adjustment. In this way, the positioning member 35 can realize the precise positioning and adjustment of the grinding drive shaft 33, thereby ensuring that the grinding wheel 34 can accurately grind the pliers head during use.

[0033] Further, in some embodiments, the grinding drive shaft 33 includes a connecting shaft 331, a fixing ring 333 and a transmission wheel 334. Specifically, the first through hole 23 is provided in the connecting shaft 331 so that the lubricant can smoothly enter the cavity 342. In addition, the fixing ring 333 is fixedly connected to the connecting shaft 331, and the grinding wheel 34 is fixed at a defined position by the fixing ring 333, so that the grinding wheel 34 can grind the pliers head. Specifically, the fixing ring 333 is fixedly connected to the upper side surface of the supporting slide plate 31, so that the grinding assembly 3 is more stable during operation, and the shaking of the grinding wheel 34 during grinding is avoided.

[0034] The transmission wheel 334 is also fixedly connected to the connecting shaft 331. The transmission wheel 334 is arranged at the lower part of the supporting slide plate 31, and forms a corresponding relationship with the fixing ring 333, which further enhances the stability and durability of the grinding device. Finally, it is connected to the output end of the first motor 32 through a transmission chain, so that the first motor 32 drives the connecting shaft 331 to rotate. Through this structural design, the grinding assembly 3 can grind the pliers head more accurately and efficiently, thereby improving work efficiency and grinding quality.

[0035] Further, in some embodiments, the grinding wheel 34 includes a fixed cover 341 and a grinding disc 343. Specifically, the fixed cover 341 is welded and fixed to the connecting shaft 331, and the grinding disc 343 is fixedly connected to the fixed cover 341 by bolts. In particular, a plurality of third through holes 344 are provided on the grinding disc 343, and a cavity 342 is provided between the fixed cover 341 and the grinding disc 343. These third through holes 344 are connected to the cavity 342, and the lubricant in the cavity 342 is discharged through the third through holes 344, so as to achieve lubrication and cooling of the pliers head to be ground, thereby improving the grinding efficiency and quality.

[0036] like Figure 5 and Figure 6As shown, in some embodiments, the bearing assembly 4 further includes a bearing plate 41, and a plurality of fixing grooves 46 are arranged in a circumferential array along the center of the bearing plate 41. In order to further enhance the fixing effect, a plurality of fixing pin holes 42 are arranged on the side of the bearing plate 41, and these fixing pin holes 42 are arranged one by one corresponding to the plurality of fixing grooves 46, so that the fixing base 5 can be firmly connected to the bearing plate 41 through the pins.

[0037] In addition, a limit ring 43, a transmission block 44 and a second motor 45 are provided at the lower part of the carrier plate 41. The limit ring 43 is used to limit the rotation range of the carrier plate 41 to ensure that it can rotate stably. The transmission block 44 is arranged in the limit ring 43 and is welded and fixed to the lower surface of the carrier plate 41, and the transmission block 44 is used to connect with the second motor 45, so that the second motor 45 can drive the carrier plate 41 to rotate, so that the pliers head can be evenly polished during the polishing process, thereby improving the polishing efficiency and quality.

[0038] like Fig.10 As shown, in some implementations, the fixed base 5 includes a fixed plate 51, a mounting groove 52 and a fourth through hole 53. Specifically, the mounting groove 52 is processed on the upper surface of the fixed plate 51, the fourth through hole 53 is arranged in the mounting groove 52, and the fourth through hole 53 passes through the bearing plate 41 and the sewage collection cover 6. In addition, the fixed plate 51 is installed in the fixed groove 46.

[0039] In particular, the pliers head is installed in the installation groove 52, and one surface thereof is higher than the upper surface of the fixing plate 51. When the pliers head rotates to the grinding disc 343, the grinding disc 343 grinds the surface of the pliers head. After grinding the surface of the pliers head, the telescopic mechanism lifts the ground pliers head through the fourth through hole 53, thereby completing the unloading operation of the pliers head. Through this design, the precise grinding of the pliers head can be effectively achieved, and the grinding efficiency and quality can be improved.

[0040] like Figure 3 and Figure 4 As shown, in some embodiments, the grinding device further includes a sewage collection hood 6 and an operating table 1. The sewage collection hood 6 and the support assembly 2 are respectively arranged on the operating table 1. In addition, the bearing assembly 4 is slidably connected to the sewage collection hood 6, so that the bearing assembly 4 can carry the pliers head for rotation.

[0041] Specifically, the sewage collection cover 6 is provided with a water collecting ditch 61, a limiting groove 63 and a fifth through hole 62. The main function of the sewage collection cover 6 is to collect the used lubricant generated during the grinding process to keep the working environment clean. In order to facilitate the discharge of the collected lubricant, the water collecting ditch 61 is also provided with a water outlet 64. The water outlet 64 can be connected to an external pipeline system, so as to achieve effective discharge and recycling of the lubricant.

[0042] In addition, a limit groove 63 is set on the upper surface of the sewage collection cover 6. The shape of this limit groove 63 is the same as the limit ring 43. The two are set correspondingly, which can effectively limit the movement range of the supporting plate 41 during operation and prevent it from shifting during rotation.

[0043] Finally, the second motor 45 is mounted on the operating table 1, and its output end passes through the fifth through hole 62 and is connected to the carrier plate 41. This connection mode enables the second motor 45 to effectively drive the carrier assembly 4 to rotate, thereby allowing the pliers grinding operation to be performed stably.

[0044] Further, in some embodiments, the operating table 1 includes a workbench 11 and a support frame 12. Specifically, the support frame 12 is installed on the upper part of the workbench 11 to provide stable support for the sewage collection cover 6.

[0045] In particular, the support frame 12 is provided with a support frame 121 and a support vertical plate 122. The second motor 45 is installed in the support frame 121 to ensure that it can work stably during operation. At the same time, the top of the support vertical plate 122 is designed to be connected to the bottom of the support frame 121, further improving the overall stability of the support frame 12.

[0046] In order to ensure the stability of the support plate 122, its bottom is fixedly connected to the workbench 11. This design not only ensures the stability of the support plate 122 during use, but also enables the entire operating table 1 to remain stable when subjected to the vibration and pressure generated by the operation of the grinding equipment, thereby improving the service life of the equipment and the grinding effect.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A grinding device for a pliers head, characterized in that: It comprises a supporting assembly (2), a grinding assembly (3) and a bearing assembly (4), wherein the grinding assembly (3) is connected to the supporting assembly (2), and the grinding assembly (3) is arranged on the upper part of the bearing assembly (4); The grinding assembly (3) is provided with a driving mechanism and a grinding wheel (34), the driving mechanism being configured to drive the grinding wheel (34) to move and rotate, the driving mechanism being provided with a second through hole (332), the grinding wheel (34) being provided with a grinding disc (343) and a cavity (342), the second through hole (332) being in communication with the cavity (342), and the cavity (342) being configured to contain a lubricant; The bearing assembly (4) is provided with a plurality of fixing grooves (46), the plurality of fixing grooves (46) are respectively connected to a plurality of fixing bases (5), the fixing bases (5) are configured to mount the pliers head to be sharpened, and the bearing assembly (4) carries the fixing bases (5) to rotate; The fixed base (5) comprises a fixed plate (51), a mounting groove (52) and a fourth through hole (53); the mounting groove (52) is arranged on the fixed plate (51); the fourth through hole (53) is arranged in the mounting groove (52); and the fixed plate (51) is arranged in the fixed groove (46).

2. The grinding device for pliers head according to claim 1, characterized in that: The support assembly (2) comprises a support column (21), a support cross plate (25), a guide rail (22), a first through hole (23) and a slide groove (24); the support cross plate (25) is arranged on the top of the support column (21); the guide rail (22) is arranged on the upper part of the support cross plate (25); the slide groove (24) is arranged at one end of the support cross plate (25); the first through hole (23) is arranged at the other end of the support cross plate (25); and the guide rail (22) is connected to the driving mechanism.

3. The grinding device for pliers head according to claim 1, characterized in that: The driving mechanism comprises a supporting slide plate (31), a first motor (32), a grinding drive shaft (33) and a positioning member (35); the supporting slide plate (31) is slidably connected to the supporting assembly (2); the first motor (32) is disposed on the upper portion of the supporting slide plate (31); the first motor (32) is drivingly connected to the grinding drive shaft (33); the first motor (32) drives the grinding drive shaft (33) to rotate; The positioning member (35) is connected to the support assembly (2), and the positioning member (35) is connected to the grinding drive shaft (33); The positioning member (35) comprises a slider (351) and an adjusting rod (352); the adjusting rod (352) is connected to the first through hole (23) via a thread; the adjusting rod (352) is fixedly connected to the slider (351); and the adjusting rod (352) drives the slider (351) to move.

4. The grinding device for pliers head according to claim 3, characterized in that: The grinding drive shaft (33) comprises a connecting shaft (331), a fixing ring (333) and a transmission wheel (334); the first through hole (23) is arranged in the connecting shaft (331); the fixing ring (333) is fixedly connected to the connecting shaft (331); the transmission wheel (334) is fixedly connected to the connecting shaft (331); the fixing ring (333) is arranged at the upper part of the supporting slide plate (31); the transmission wheel (334) is arranged at the lower part of the supporting slide plate (31); and the transmission wheel (334) is transmission-connected to the first motor (32).

5. The grinding device for pliers head according to claim 1, characterized in that: The grinding wheel (34) comprises a fixed cover (341) and a grinding sheet, the fixed cover (341) is fixedly connected to the connecting shaft (331), the grinding sheet is fixedly connected to the fixed cover (341), a plurality of third through holes (344) are provided on the grinding sheet, the plurality of third through holes (344) and the cavity (342) are provided between the fixed cover (341) and the grinding sheet, and the third through holes (344) are in communication with the cavity (342).

6. The grinding device for pliers head according to claim 1, characterized in that: The bearing assembly (4) further comprises a bearing plate (41), the fixing groove (46) being arranged on the bearing plate (41), a plurality of fixing pin holes (42) being arranged on the side of the bearing plate (41), and the plurality of fixing pin holes (42) and the plurality of fixing grooves (46) being arranged in a one-to-one correspondence; A limiting ring (43), a transmission block (44) and a second motor (45) are provided at the lower part of the bearing plate (41); the transmission block (44) is arranged in the limiting ring (43); the second motor (45) is connected to the transmission block (44); and the second motor (45) drives the bearing plate (41) to rotate.

7. The grinding device for pliers head according to claim 6, characterized in that: It also comprises a sewage collection hood (6) and an operating table (1), wherein the sewage collection hood (6) and the support assembly (2) are respectively arranged on the operating table (1), and the bearing assembly (4) is slidably connected to the sewage collection hood (6); The sewage collecting cover (6) is provided with a water collecting ditch (61), a limiting groove (63) and a fifth through hole (62); the water collecting ditch (61) is configured to collect used lubricant; the water collecting ditch (61) is provided with a water outlet (64); the water outlet (64) is connected to an external pipeline; the limiting groove (63) is arranged corresponding to the limiting ring (43); and the fifth through hole (62) is connected to the second motor (45).

8. The grinding device for pliers head according to claim 8, characterized in that: The operating table (1) comprises a workbench (11) and a support frame (12), wherein the support frame (12) is arranged on the workbench (11), and the support frame (12) is connected to the sewage collection cover (6); The support frame (12) is provided with a support frame (121) and a support vertical plate (122); the second motor (45) is arranged in the support frame (121); the top of the support vertical plate (122) is arranged at the bottom of the support frame (121); and the bottom of the support vertical plate (122) is fixedly connected to the workbench (11).

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