Automobile bolt cutting device with fastening clamp

Abstract

The invention relates to the technical field of cutting devices, in particular to an automobile bolt cutting device with a fastening clamp, which comprises a base, the upper end of the base is fixedly connected with an operation table, the outer side of the operation table is provided with a plurality of groups of assembly holes, and the inner sides of the assembly holes are in threaded connection with bolt main bodies; anti-skid lines are arranged on the outer side of the bolt body, a first motor is installed at the lower end of the operation table, an output shaft of the first motor is fixedly connected with multiple sets of connecting rods, a chamfering mechanism is installed at the other ends of the connecting rods, the chamfering mechanism comprises an oil conveying pipe, and an edge cutting mechanism is installed at the lower end of the oil conveying pipe. Through mutual cooperation of an annular plate and a fourth rotating shaft, a cutting plate clamps threads of a bolt main body, through opposite rotation of the cutting plate and the bolt main body, the threads on the outer side of the bolt main body are cut, burrs and impurities on the outer side of the threads are comprehensively removed, and the quality of the bolt main body and the assembly effect during use are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting devices, and particularly to an automotive bolt cutting device with a fastening fixture. Background Art

[0002] Automotive fasteners are tools or accessories used to connect automotive components. They are very crucial during the assembly and repair of automobiles. Their main function is to ensure the safe and reliable connection of automotive components, avoiding loosening or separation during driving, thereby ensuring driving safety.

[0003] During the production of existing automotive bolts, the connection between the bolt head and the screw rod is a stress concentration point, and chamfering treatment needs to be performed on the bolt head. During the processing of the screw rod anti-slip threads, vertical metal burrs will remain. When workers hold this place, they will be scratched by the anti-slip threads. The bevel burrs generated during thread production will greatly affect the assembly effect. Moreover, after the bolt is repaired, the external oxide layer is polished, so rust spots will occur when the bolt is placed. For this reason, we propose an automotive bolt cutting device with a fastening fixture. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art, the present invention proposes an automotive bolt cutting device with a fastening fixture.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an automotive bolt cutting device with a fastening fixture, including a base. The upper end of the base is fixedly connected with an operating table. A plurality of assembly holes are opened on the outer side of the operating table. A bolt body is threadedly connected inside the assembly holes. Anti-slip threads are provided on the outer side of the bolt body. A plurality of sliding grooves are opened inside the operating table. A first motor is installed at the lower end of the operating table. The output shaft of the first motor is fixedly connected with a plurality of connecting rods. A chamfering mechanism is installed at the other end of the connecting rods. The chamfering mechanism includes an oil delivery pipe, and a trimming mechanism is installed at the lower end of the oil delivery pipe.

[0006] Preferably, the chamfering mechanism includes a mounting bracket fixedly connected with the connecting rod. A second motor is installed at the upper end of the mounting bracket. The lower end of the second motor is rotatably connected with a chamfering shaft. The output shaft of the second motor is fixedly connected with the chamfering shaft. A first gear is fixedly connected to the lower end of the chamfering shaft. The outer side of the first gear meshes with the anti-slip threads of the bolt body.

[0007] Preferably, a first rotating shaft is fixedly connected to the lower end of the first gear. The outer side of the first rotating shaft penetrates through the sliding groove, and the lower end of the first rotating shaft is fixedly connected to the oil delivery pipe. The outer side of the oil delivery pipe is rotatably connected to an oil tank. Two symmetrically arranged clamping blocks are fixedly connected to the upper end of the oil tank. A roller is installed at the upper end of the clamping block, and the roller is slidably connected to the inner side of the operating table. Vanes are fixedly connected to the inner part of the oil tank on the outer side of the oil delivery pipe.

[0008] Preferably, a second feed hole is formed in the outer side of the oil delivery pipe, and a discharge hole is formed below the second feed hole on the outer side of the oil delivery pipe. A sealing sleeve is rotatably connected to the outer side of the oil delivery pipe. A first feed hole is formed in the outer side of the sealing sleeve. The lower end of the sealing sleeve is fixedly connected to the oil tank. A sleeve is fixedly connected to the outer side of the oil delivery pipe. A discharge pipe is fixedly connected to the outer side of the sleeve. The outer side of the discharge pipe is fixedly connected to the oil tank through a clamping block.

[0009] Preferably, the edge trimming mechanism includes a second gear fixedly connected to the oil delivery pipe. A limiting plate is fixedly connected to the lower end of the second gear. A first synchronous belt is rotatably connected to the outer side of the second gear. A third gear is rotatably connected to the inner side of the first synchronous belt. A fourth gear is fixedly connected to the lower end of the third gear. The lower end of the fourth gear is rotatably connected to a first synchronous belt through a rotating shaft. The upper end of the first synchronous belt is fixedly connected to the operating table. A second synchronous belt is rotatably connected to the outer side of the fourth gear. Three second rotating shafts are rotatably connected to the inner side of the second synchronous belt. The lower end of the second rotating shaft is rotatably connected to the first synchronous belt. Two symmetrically arranged first clamping plates are fixedly connected to the outer side of the second rotating shaft. The outer side of the second synchronous belt is designed with a frosted surface. An annular plate is rotatably connected to the outer side of the second synchronous belt. The upper and lower ends of the annular plate are respectively attached to the two first clamping plates.

[0010] Preferably, two symmetrically arranged third rotating shafts are rotatably connected to the outer side of the annular plate. The lower end of the third rotating shaft is rotatably connected to the first synchronous belt. Two symmetrically arranged second clamping plates are fixedly connected to the outer side of the third rotating shaft. The upper and lower ends of the annular plate are respectively attached to the two second clamping plates.

[0011] Preferably, two symmetrically arranged fourth rotating shafts are installed on the inner wall of the annular plate. The output shafts of the two fourth rotating shafts are fixedly connected with cutting plates. The sides of the two cutting plates close to each other are designed with cutting surfaces.

[0012] Preferably, a fourth rotating shaft is fixedly connected to the lower end of the third gear through a rotating shaft. A collecting cylinder is rotatably connected to the outer side of the fourth rotating shaft. Two symmetrically arranged fixing rods are fixedly connected to the upper end of the collecting cylinder. The upper ends of the fixing rods are fixedly connected to the first synchronous belt. A filter plate is installed inside the collecting cylinder.

[0013] Preferably, the lower end of the fourth rotating shaft is fixedly connected with a fifth gear, the fifth gear is rotatably connected to the inside of the collecting cylinder, the outside of the fifth gear is rotatably connected with a third synchronous belt, the inside of the third synchronous belt is rotatably connected with a sixth gear, the upper end of the sixth gear is rotatably connected with the filter plate through a rotating shaft, and a sweeping rod is fixedly connected above the filter plate at the upper end of the sixth gear.

[0014] Preferably, the lower end of the sixth gear is rotatably connected with a stirring rod through a rotating shaft.

[0015] Compared with the prior art, the present invention provides an automobile bolt cutting device with a fastening fixture, which has the following beneficial effects: 1. Through the mutual cooperation of the second motor and the first gear, the chamfering shaft and the bolt body rotate in opposite directions, so that the chamfering shaft chamfers the head position of the bolt body, thereby improving the product quality of the bolt body. Through the mutual cooperation of the first gear and the bolt body, the anti-slip lines on the outside of the bolt body are polished by rotation, so as to cut the burrs omitted by the anti-slip lines, thereby improving the use effect of the anti-slip lines of the bolt body.

[0016] 2. Through the mutual cooperation of the annular plate and the fourth rotating shaft, the cutting plate clamps the threads of the bolt body, and through the opposite rotation of the cutting plate and the bolt body, the threads on the outside of the bolt body are cut, comprehensively removing the burrs and impurities on the outside of the threads, and improving the quality of the bolt body and the assembly effect during use.

[0017] 3. Through the mutual cooperation of the fifth gear and the third synchronous belt, the sixth gear drives the sweeping rod to clean the filter plate, avoiding blockage of the filter plate and improving the filtering efficiency of the filter plate. Through the mutual cooperation of the sixth gear and the stirring rod, the stirring rod stirs the collected lubricating oil, and the centrifugal force generated by the stirring makes the unfiltered metal particles in the lubricating oil concentrate towards the periphery, thereby facilitating the subsequent recovery of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of an automobile bolt cutting device with a fastening fixture proposed by the present invention; Figure 2 It is a schematic diagram of the overall structure of the bolt body of an automobile bolt cutting device with a fastening fixture proposed by the present invention; Figure 3 It is a schematic cross-sectional view of the overall structure of an automobile bolt cutting device with a fastening fixture proposed by the present invention; Figure 4 It is a schematic diagram of a partially enlarged structure of an automobile bolt cutting device with a fastening fixture proposed by the present invention; Figure 5Schematic cross-sectional view of a partial structure of an automobile bolt cutting device with a fastening fixture proposed by the present invention; Figure 6 Schematic cross-sectional view of a partial structure of a chamfering mechanism of an automobile bolt cutting device with a fastening fixture proposed by the present invention; Figure 7 Schematic cross-sectional view of a partial structure of an edge-cutting mechanism of an automobile bolt cutting device with a fastening fixture proposed by the present invention Figure 1 ; Figure 8 Schematic cross-sectional view of a partial structure of an edge-cutting mechanism of an automobile bolt cutting device with a fastening fixture proposed by the present invention Figure 2 。

[0019] In the figure: 1, base; 2, operating table; 3, assembly hole; 4, bolt body; 5, connecting rod; 6, first motor; 7, chamfering mechanism; 71, mounting bracket; 72, second motor; 73, chamfering shaft; 74, first gear; 75, first rotating shaft; 76, fuel tank; 77, roller; 78, oil delivery pipe; 79, blade; 710, sealing sleeve; 711, first feed hole; 712, second feed hole; 713, discharge hole; 714, discharge pipe; 8, edge-cutting mechanism; 81, second gear; 82, limiting plate; 83, first synchronous belt; 84, third gear; 85, fourth gear; 86, second synchronous belt; 87, second rotating shaft; 88, first clamping plate; 89, cutting plate; 810, third rotating shaft; 811, second clamping plate; 812, annular plate; 813, fourth rotating shaft; 814, collection cylinder; 815, fifth gear; 816, third synchronous belt; 817, sixth gear; 818, filter plate; 819, sweeping rod; 820, stirring rod; 821, fixing rod; 9, chute. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] Please refer to Figures 1 - 8 , an automobile bolt cutting device with a fastening fixture, including a base 1, the upper end of the base 1 is fixedly connected with an operating table 2, a plurality of groups of assembly holes 3 are opened on the outer side of the operating table 2, a bolt body 4 is threadedly connected inside the assembly hole 3, anti-slip threads are provided on the outer side of the bolt body 4, a plurality of groups of chutes 9 are opened inside the operating table 2, a first motor 6 is installed at the lower end of the operating table 2, the output shaft of the first motor 6 is fixedly connected with a plurality of connecting rods 5, and the other end of the connecting rod 5 is installed with a chamfering mechanism 7, and the chamfering mechanism 7 includes an oil delivery pipe 78, and an edge-cutting mechanism 8 is installed at the lower end of the oil delivery pipe 78.

[0022] In this embodiment, the chamfering mechanism 7 includes a mounting bracket 71 fixedly connected to the connecting rod 5. A second motor 72 is mounted at the upper end of the mounting bracket 71. A chamfering shaft 73 is rotatably connected to the lower end of the second motor 72. The output shaft of the second motor 72 is fixedly connected to the chamfering shaft 73. A first gear 74 is fixedly connected to the lower end of the chamfering shaft 73. The outer side of the first gear 74 meshes with the anti-slip threads of the bolt body 4.

[0023] Specifically, the mounting bracket 71 provides an installation space for other structures. The second motor 72 drives the chamfering shaft 73 to rotate, thereby chamfering the head position of the bolt body 4. The chamfering shaft 73 drives the first gear 74 to rotate. The outer side of the first gear 74 meshes with the anti-slip threads of the bolt body 4, so that the bolt body 4 and the chamfering shaft 73 rotate in opposite directions, improving the chamfering efficiency. And through the rotation of the first gear 74, the fine burrs left on the anti-slip threads of the bolt body 4 are cleaned.

[0024] In this embodiment, a first rotating shaft 75 is fixedly connected to the lower end of the first gear 74. The outer side of the first rotating shaft 75 penetrates through the sliding groove 9. The lower end of the first rotating shaft 75 is fixedly connected to an oil delivery pipe 78. An oil tank 76 is rotatably connected to the outer side of the oil delivery pipe 78. Two symmetrically arranged clamping blocks are fixedly connected to the upper end of the oil tank 76. A roller 77 is mounted at the upper end of the clamping block. The roller 77 is slidably connected to the inner side of the operating table 2. A blade 79 is fixedly connected to the inside of the oil tank 76 on the outer side of the oil delivery pipe 78.

[0025] Specifically, when the first rotating shaft 75 moves in the sliding groove 9, it drives the oil tank 76 to move. The oil tank 76 is assisted in its movement by the roller 77. The first rotating shaft 75 drives the oil delivery pipe 78 to rotate. When the oil delivery pipe 78 drives the blade 79 to rotate, the lubricating oil in the oil tank 76 is stirred.

[0026] In this embodiment, a second feed hole 712 is opened on the outer side of the oil delivery pipe 78. A discharge hole 713 is opened below the second feed hole 712 on the outer side of the oil delivery pipe 78. A sealing sleeve 710 is rotatably connected to the outer side of the oil delivery pipe 78. A first feed hole 711 is opened on the outer side of the sealing sleeve 710. The lower end of the sealing sleeve 710 is fixedly connected to the oil tank 76. A sleeve is fixedly connected to the outer side of the oil delivery pipe 78. A discharge pipe 714 is fixedly connected to the outer side of the sleeve. The outer side of the discharge pipe 714 is fixedly connected to the oil tank 76 through a clamping block.

[0027] Specifically, when the oil delivery pipe 78 rotates, the second feed hole 712 is aligned with the first feed hole 711 on the outer side of the sealing sleeve 710, so that the lubricating oil inside the oil tank 76 flows into the inside of the oil delivery pipe 78. Then, when the discharge hole 713 rotates and aligns with the input port of the discharge pipe 714, it is thrown outwards from the discharge pipe 714 by the centrifugal force during rotation, so that the lubricating oil is smeared on the outer side of the threads of the bolt body 4.

[0028] In this embodiment, the edge trimming mechanism 8 includes a second gear 81 fixedly connected to the oil pipeline 78. A limiting plate 82 is fixedly connected to the lower end of the second gear 81. A first synchronous belt 83 is rotatably connected to the outside of the second gear 81. A third gear 84 is rotatably connected to the inner side of the first synchronous belt 83. A fourth gear 85 is fixedly connected to the lower end of the third gear 84. The lower end of the fourth gear 85 is rotatably connected to the first synchronous belt 83 through a rotating shaft. The upper end of the first synchronous belt 83 is fixedly connected to the operating platform 2. A second synchronous belt 86 is rotatably connected to the outside of the fourth gear 85. Three groups of second rotating shafts 87 are rotatably connected to the inner side of the second synchronous belt 86. The lower end of the second rotating shaft 87 is rotatably connected to the first synchronous belt 83. Two groups of symmetric first clamping plates 88 are fixedly connected to the outside of the second rotating shaft 87. The outside of the second synchronous belt 86 is designed with a matte finish. An annular plate 812 is rotatably connected to the outside of the second synchronous belt 86. The upper and lower ends of the annular plate 812 are respectively in contact with the two groups of first clamping plates 88.

[0029] Specifically, when the oil pipeline 78 rotates, it drives the second gear 81 to rotate. The second gear 81 drives the third gear 84 to rotate through the first synchronous belt 83. The limiting plate 82 prevents the first synchronous belt 83 from falling off downward. The third gear 84 drives the fourth gear 85 to rotate. The fourth gear 85 drives the second rotating shaft 87 to rotate through the second synchronous belt 86. The second rotating shaft 87 clamps the annular plate 812 through the first clamping plate 88.

[0030] In this embodiment, two groups of symmetric third rotating shafts 810 are rotatably connected to the outside of the annular plate 812. The lower ends of the third rotating shafts 810 are rotatably connected to the first synchronous belt 83. Two groups of symmetric second clamping plates 811 are fixedly connected to the outside of the third rotating shafts 810. The upper and lower ends of the annular plate 812 are respectively in contact with the two groups of second clamping plates 811.

[0031] Specifically, the third rotating shaft 810 clamps the annular plate 812 through the second clamping plate 811. The second rotating shaft 87 and the fourth gear 85 cooperate with each other to make the second synchronous belt 86 drive the clamped annular plate 812, so that the annular plate 812 rotates.

[0032] In this embodiment, two groups of symmetric fourth rotating shafts 813 are installed on the inner wall of the annular plate 812. The output shafts of the two groups of fourth rotating shafts 813 are fixedly connected with cutting plates 89. The sides of the two groups of cutting plates 89 close to each other are designed with cutting surfaces.

[0033] Specifically, the annular plate 812 drives the fourth rotating shaft 813 to rotate. Start the fourth rotating shaft 813. The two groups of fourth rotating shafts 813 drive the two groups of cutting plates 89 to clamp the threads of the bolt body 4, and cut the threads of the bolt body 4 by rotating, so that the debris and burrs left on the threads of the bolt body 4 can be comprehensively cleaned, and lubricating oil is applied to the outside of the threads to prevent rusting due to the loss of the oxide layer after the threads are polished.

[0034] In this embodiment, the lower end of the third gear 84 is fixedly connected to the fourth rotating shaft 813 via a rotating shaft, the outer side of the fourth rotating shaft 813 is rotatably connected to the collecting cylinder 814, the upper end of the collecting cylinder 814 is fixedly connected to two groups of symmetrical fixing rods 821, the upper ends of the fixing rods 821 are fixedly connected to the first synchronous belt 83, and a filter plate 818 is installed on the inner side of the collecting cylinder 814.

[0035] Specifically, the chips after cutting and the dripping lubricating oil are concentrated and fall into the interior of the collecting tube 814 , the chips are concentrated at the upper end of the filter plate 818 , and the lubricating oil is filtered by the filter plate 818 and collected at the bottom of the collecting tube 814 .

[0036] In this embodiment, the lower end of the fourth rotating shaft 813 is fixedly connected to the fifth gear 815, and the fifth gear 815 is rotatably connected to the inner side of the collecting tube 814. The outer side of the fifth gear 815 is rotatably connected to the third synchronous belt 816, and the inner side of the third synchronous belt 816 is rotatably connected to the sixth gear 817. The upper end of the sixth gear 817 is rotatably connected to the filter plate 818 through a rotating shaft, and a sweeping rod 819 is fixedly connected above the upper end of the sixth gear 817 and the filter plate 818.

[0037] Specifically, the fourth rotating shaft 813 drives the fifth gear 815 to rotate, and the fifth gear 815 drives the sixth gear 817 to rotate through the third synchronous belt 816. The sixth gear 817 drives the sweeping rod 819 to clean the debris docked at the upper end of the third synchronous belt 816 to the periphery to avoid clogging of the filter plate 818.

[0038] In this embodiment, the lower end of the sixth gear 817 is rotatably connected to the stirring rod 820 via a rotating shaft.

[0039] Specifically, the sixth gear 817 drives the stirring rod 820 to stir the filtered lubricating oil. The centrifugal force generated during stirring causes the unfiltered particles in the lubricating oil to be concentrated around the inner wall of the third synchronous belt 816, thereby improving the efficiency of lubricating oil recovery.

[0040] Working principle: When in use, place the bolt body 4 on the upper end of the operating table 2, and then threadedly rotate it inside the assembly hole 3. After the bolt body 4 moves downward, it is misaligned with the thread of the assembly hole 3, so that the bolt body 4 rotates inside the assembly hole 3. The anti-slip pattern on the outer wall of the bolt body 4 holds the bolt body 4, and the installation of the bolt body 4 is completed. Start the first motor 6. The output shaft of the first motor 6 drives the first rotating shaft 75 to move in the chute 9 through the connecting rod 5, so that the first gear 74 moves and meshes with the anti-slip pattern of the bolt body 4. Start the second motor 72. The output shaft of the second motor 72 drives the chamfering shaft 73 to rotate, so that the chamfering shaft 73 grinds the outer side and the lower end position of the head of the bolt body 4. The chamfering shaft 73 drives the first gear 74 to rotate, and the first gear 74 drives the bolt body 4 to rotate, so that the small burrs left by the anti-slip pattern of the bolt body 4 are cleaned. When the first rotating shaft 75 moves in the chute 9, it drives the oil tank 76 to move. The oil tank 76 is assisted by the rollers 77 to move itself. The first rotating shaft 75 drives the oil delivery pipe 78 to rotate. When the oil delivery pipe 78 drives the blades 79 to rotate, the lubricating oil in the oil tank 76 is stirred. When the oil delivery pipe 78 rotates, the second feed hole 712 is aligned with the first feed hole 711 outside the sealing sleeve 710, so that the lubricating oil inside the oil tank 76 flows into the oil delivery pipe 78. Then, when the discharge hole 713 rotates and is aligned with the input port of the discharge pipe 714, it is thrown outwards from the discharge pipe 714 by the centrifugal force during rotation, so that the lubricating oil is smeared on the outer side of the thread of the bolt body 4. When the oil delivery pipe 78 rotates, it drives the second gear 81 to rotate. The second gear 81 drives the third gear 84 to rotate through the first synchronous belt 83. The limiting plate 82 prevents the first synchronous belt 83 from falling off downward. The third gear 84 drives the fourth gear 85 to rotate. The fourth gear 85 drives the second rotating shaft 87 to rotate through the second synchronous belt 86. The second rotating shaft 87 clamps the annular plate 812 through the first clamping plate 88. The third rotating shaft 810 clamps the annular plate 812 through the second clamping plate 811. The second rotating shaft 87 and the fourth gear 85 cooperate with each other to drive the clamped annular plate 812 by the second synchronous belt 86, so that the annular plate 812 rotates. The rotation direction of the annular plate 812 is opposite to the rotation direction of the bolt body 4. The annular plate 812 drives the fourth rotating shaft 813 to rotate. Start the fourth rotating shaft 813. The two fourth rotating shafts 813 drive the two cutting plates 89 to clamp the thread of the bolt body 4, and cut the thread of the bolt body 4 by rotation, so that the debris and burrs left by the thread of the bolt body 4 can be comprehensively cleaned, and the lubricating oil is smeared on the outer side of the thread, avoiding rust caused by the loss of the oxide layer after the thread is polished. The cut debris and the dripping lubricating oil are concentrated and dropped into the collection cylinder 814. The debris is concentrated on the upper end of the filter plate 818. The lubricating oil is filtered by the filter plate 818 and collected at the bottom of the collection cylinder 814. The third gear 84 drives the fourth rotating shaft 813 to rotate. The fourth rotating shaft 813 drives the fifth gear 815 to rotate.The fifth gear 815 drives the sixth gear 817 to rotate through the third synchronous belt 816, and the sixth gear 817 drives the sweeping rod 819 to clean the debris docked at the upper end of the third synchronous belt 816 to the periphery to avoid clogging of the filter plate 818. The sixth gear 817 drives the stirring rod 820 to stir the filtered lubricating oil. The centrifugal force generated during stirring causes the particles in the lubricating oil that cannot be filtered to concentrate around the inner wall of the third synchronous belt 816, thereby improving the efficiency of lubricating oil recovery.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automotive bolt cutting device with a fastening fixture, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected with an operating table (2). A plurality of assembly holes (3) are formed on the outer side of the operating table (2). A bolt body (4) is threadedly connected to the inner side of the assembly hole (3). Anti-slip threads are provided on the outer side of the bolt body (4). A plurality of sliding grooves (9) are formed on the inner side of the operating table (2). A first motor (6) is installed at the lower end of the operating table (2). The output shaft of the first motor (6) is fixedly connected with a plurality of connecting rods (5). The other end of the connecting rod (5) is installed with a chamfering mechanism (7). The chamfering mechanism (7) includes an oil delivery pipe (78). A trimming mechanism (8) is installed at the lower end of the oil delivery pipe (78).

2. The automotive bolt cutting device with a fastening fixture according to claim 1, characterized in that: The chamfering mechanism (7) includes a mounting bracket (71) fixedly connected with the connecting rod (5). A second motor (72) is installed at the upper end of the mounting bracket (71). A chamfering shaft (73) is rotatably connected to the lower end of the second motor (72). The output shaft of the second motor (72) is fixedly connected with the chamfering shaft (73). A first gear (74) is fixedly connected to the lower end of the chamfering shaft (73). The outer side of the first gear (74) is engaged with the anti-slip threads of the bolt body (4).

3. The automotive bolt cutting device with a fastening fixture according to claim 2, characterized in that: A first rotating shaft (75) is fixedly connected to the lower end of the first gear (74). The outer side of the first rotating shaft (75) penetrates through the sliding groove (9). The lower end of the first rotating shaft (75) is fixedly connected with the oil delivery pipe (78). The outer side of the oil delivery pipe (78) is rotatably connected with an oil tank (76). Two symmetrically arranged clamping blocks are fixedly connected to the upper end of the oil tank (76). A roller (77) is installed at the upper end of the clamping block. The roller (77) is slidably connected to the inner side of the operating table (2). A blade (79) is fixedly connected to the inner part of the oil tank (76) on the outer side of the oil delivery pipe (78).

4. The automotive bolt cutting device with a fastening fixture according to claim 1, characterized in that: A second feed hole (712) is formed on the outer side of the oil delivery pipe (78). A discharge hole (713) is formed below the second feed hole (712) on the outer side of the oil delivery pipe (78). A sealing sleeve (710) is rotatably connected to the outer side of the oil delivery pipe (78). A first feed hole (711) is formed on the outer side of the sealing sleeve (710). The lower end of the sealing sleeve (710) is fixedly connected with the oil tank (76). A sleeve is fixedly connected to the outer side of the oil delivery pipe (78). A discharge pipe (714) is fixedly connected to the outer side of the sleeve. The outer side of the discharge pipe (714) is fixedly connected with the oil tank (76) through a clamping block.

5. The automotive bolt cutting device with a fastening fixture according to claim 1, characterized in that: The edge trimming mechanism (8) includes a second gear (81) fixedly connected to the oil pipeline (78). A limiting plate (82) is fixedly connected to the lower end of the second gear (81). A first synchronous belt (83) is rotatably connected to the outside of the second gear (81). A third gear (84) is rotatably connected to the inside of the first synchronous belt (83). A fourth gear (85) is fixedly connected to the lower end of the third gear (84). The lower end of the fourth gear (85) is rotatably connected to the first synchronous belt (83) through a rotating shaft. The upper end of the first synchronous belt (83) is fixedly connected to the operation table (2). A second synchronous belt (86) is rotatably connected to the outside of the fourth gear (85). Three groups of second rotating shafts (87) are rotatably connected to the inside of the second synchronous belt (86). The lower end of the second rotating shaft (87) is rotatably connected to the first synchronous belt (83). Two groups of symmetric first clamping plates (88) are fixedly connected to the outside of the second rotating shaft (87). The outside of the second synchronous belt (86) is designed with a frosted surface. An annular plate (812) is rotatably connected to the outside of the second synchronous belt (86). The upper and lower ends of the annular plate (812) are respectively in contact with the two groups of first clamping plates (88).

6. The automotive bolt cutting device with a fastening fixture according to claim 5, characterized in that: Two groups of symmetric third rotating shafts (810) are rotatably connected to the outside of the annular plate (812). The lower end of the third rotating shaft (810) is rotatably connected to the first synchronous belt (83). Two groups of symmetric second clamping plates (811) are fixedly connected to the outside of the third rotating shaft (810). The upper and lower ends of the annular plate (812) are respectively in contact with the two groups of second clamping plates (811).

7. A vehicle bolt cutting device with a fastening clamp according to claim 5, characterized in that: Two groups of symmetric fourth rotating shafts (813) are installed on the inner wall of the annular plate (812). The output shafts of the two groups of fourth rotating shafts (813) are both fixedly connected with cutting plates (89). The sides of the two groups of cutting plates (89) close to each other are designed with cutting surfaces.

8. An automotive bolt cutting device with a fastening fixture according to claim 5, characterized in that: A fourth rotating shaft (813) is fixedly connected to the lower end of the third gear (84) through a rotating shaft. A collecting cylinder (814) is rotatably connected to the outside of the fourth rotating shaft (813). Two groups of symmetric fixing rods (821) are fixedly connected to the upper end of the collecting cylinder (814). The upper ends of the fixing rods (821) are fixedly connected to the first synchronous belt (83). A filter plate (818) is installed inside the collecting cylinder (814).

9. The automotive bolt cutting device with a fastening fixture according to claim 8, wherein: A fifth gear (815) is fixedly connected to the lower end of the fourth rotating shaft (813). The fifth gear (815) is rotatably connected to the inside of the collecting cylinder (814). A third synchronous belt (816) is rotatably connected to the outside of the fifth gear (815). A sixth gear (817) is rotatably connected to the inside of the third synchronous belt (816). The upper end of the sixth gear (817) is rotatably connected to the filter plate (818) through a rotating shaft. A sweeping rod (819) is fixedly connected above the upper end of the sixth gear (817) and above the filter plate (818).

10. The automotive bolt cutting device with a fastening fixture according to claim 9, characterized in that: A stirring rod (820) is rotatably connected to the lower end of the sixth gear (817) through a rotating shaft.

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