Bolt and nut fastening device for automobile machining and using method of bolt and nut fastening device

Abstract

The invention relates to a bolt and nut fastening device for automobile machining, which comprises a quick-insertion type locking mechanism, and the quick-insertion type locking mechanism comprises a locking motor, a locking main driving rod, a transition sleeve, a replacement transition rod and a disassembly sleeve; one end of the locking main driving rod is fixedly connected with the output end of the locking motor, the other end of the locking main driving rod is movably connected with the transition sleeve in a pluggable mode, and the end, away from the locking main driving rod, of the transition sleeve is fixedly connected with one end of the replacement transition rod. The end, away from the transition sleeve, of the replacement transition rod is movably connected with the dismounting sleeve in a pluggable mode. The anti-shearing force of the locking main driving rod can be effectively improved, the service life of the locking main driving rod is prolonged, the situation that accessories are replaced due to abrasion caused by frequent tangential force is improved, the accessory replacement cost is reduced, the accessory replacement convenience is improved, synchronous locking is achieved according to opposite angles fastened by bolts and nuts at different positions, and the locking effect is good. And the stress uniformity of part assembly in the automobile machining process is improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile processing, in particular to a bolt and nut fastening device for automobile processing and a use method thereof. Background Art

[0002] During car repair and maintenance, properly tightening screws is a key step to ensure vehicle safety and performance. Improper tightening of screws may cause parts to loosen, leading to mechanical failure and even affecting driving safety. Therefore, it is crucial to master the correct tightening technique.

[0003] First of all, choosing the right screwdriver or wrench is the basis. Different types of screws require different types of tools, such as cross screws require cross screwdrivers, while hexagonal screws require hexagonal wrenches. Using unmatched tools may damage the screw head, making the screw difficult to remove or further tighten.

[0004] When tightening multiple screws, a certain sequence should be followed, usually from the center to the periphery. This "star" or "cross" sequence ensures that the parts are evenly stressed and avoids deformation or damage caused by uneven stress.

[0005] Control the appropriate torque. Torque is an important indicator to measure the degree of tightening of screws. Excessive torque may cause the screws to break or the threads to be damaged, while too little torque may cause the screws to loosen. Therefore, it is very necessary to use a torque wrench and tighten according to the torque value recommended by the manufacturer.

[0006] During the driving process of the car, the screws may gradually loosen due to vibration and temperature changes. Therefore, regular inspection and retightening of the screws is an important measure to keep the vehicle in good condition. Especially after long-distance driving or driving in bad road conditions, inspection should be carried out.

[0007] Automobile bolt tightening is a key link to ensure the safe operation of the vehicle. The tightening force of the bolts must be precisely controlled to ensure that the various parts of the vehicle are firmly connected and to prevent safety hazards caused by looseness or overtightening. For example, overtightening the oil pan screws may cause oil leakage, and overtightening the tire screws may break.

[0008] The main methods and tools for bolt tightening include torque wrenches, which are tools that can accurately adjust torque, ensuring that each screw is tightened according to the ideal torque set by the manufacturer, avoiding potential problems caused by over-tightening. The required axial preload is obtained by controlling the final torque of the bolt, which is suitable for the elastic area of ​​the bolt material. After tightening to the set torque, continue to rotate the bolt to the preset angle, which is suitable for the elastic zone and plastic zone. The tightening process is controlled by monitoring the slope change during the tightening process, which is suitable after the bolt enters the plastic zone.

[0009] Automakers have clear regulations on the tightening torque of bolts. For example, the tightening torque of the bolts of the BMW 1 Series can be accurate to 1 Nm. However, in actual operations, many maintenance technicians do not strictly follow these standards, which may cause damage to the screws and affect the performance and safety of the vehicle. In addition, the performance level of the bolts is also very important. Bolts and nuts of different grades should be used together to ensure the strength and stability of the connection.

[0010] With the advancement of technology, automation and intelligent tools will be increasingly used in the bolt tightening process. For example, the use of robots for automated tightening can more accurately control torque and angle and reduce human errors. In addition, smart sensors and data analysis technologies will also help optimize the tightening process and improve efficiency and safety.

[0011] For example, the application number 202121776426.8 discloses a bolt and nut fastening device for automobiles, which includes: a first slide rail, a sliding seat slidably arranged on the first slide rail, a connecting rod, a first base having a sliding channel for the connecting rod to slide, a bolt tightener connected to the connecting rod and used to screw the nut into the bolt, and a driver for driving the connecting rod to slide; the first base is rotatably connected to the sliding seat. It can adapt to the diversified structures and shapes of automobile parts, so as to fasten bolts and nuts to sheet metal parts at different angles. And through the setting of the first slide rail, the automobile bolt and nut fastening device of the present application can realize double-station switching work.

[0012] However, most of the current fastening devices have weak shear resistance of the locking main drive rod, resulting in a short service life of the locking main drive rod. Frequent tangential forces lead to wear and tear, which requires the replacement of accessories. The cost of replacing accessories is high and the replacement of accessories is inconvenient. The diagonal tightening of bolts and nuts at different positions cannot be synchronized, resulting in uneven force on the assembly of parts during automobile processing. The bolts and nuts at special angles cannot be met by the same equipment. Summary of the invention

[0013] The technical problem to be solved by the present invention is to improve the shear resistance of the locking main drive rod, increase the service life of the locking main drive rod, improve the replacement of accessories caused by frequent tangential force, reduce the cost of accessory replacement, and improve the convenience of accessory replacement. Synchronous locking is achieved for the diagonals of bolts and nuts tightened at different positions, and the force uniformity of component assembly during automobile processing is improved, and the same equipment is met for bolts and nuts at special angles.

[0014] In order to solve the above technical problems, the present invention provides a bolt and nut fastening device for automobile processing, comprising a quick-insert locking mechanism, wherein the quick-insert locking mechanism comprises a locking motor, a locking main drive rod, a transition sleeve, a replacement transition rod, and a disassembly sleeve; one end of the locking main drive rod is fixedly connected to the output end of the locking motor, and the other end thereof is movably connected to the transition sleeve by plugging and unplugging, an end of the transition sleeve away from the locking main drive rod is fixedly connected to an end of the replacement transition rod, and an end of the replacement transition rod away from the transition sleeve is movably connected to the disassembly sleeve by plugging and unplugging; The quick-insert locking mechanism is fixedly provided with a bidirectional synchronous displacement mechanism for synchronous displacement; A mode switching mechanism of a rotation angle is fixedly arranged on the bidirectional synchronous displacement mechanism.

[0015] Preferably, a standard positioning square is fixedly provided on the locking main driving rod, a positioning square groove is provided on the top of the transition sleeve, a penetrating quick-insertion hole is provided on the outer circumferential surface of the transition sleeve along the positioning square groove, and the quick-insertion locking mechanism further includes a quick-insertion pin; the quick-insertion pin is fixedly provided in the quick-insertion hole to limit the relative displacement of the transition sleeve relative to the locking main driving rod; Preferably, the transition sleeve is fixedly provided with a plurality of groups of positioning posts, and the replacement transition rod is provided with a plurality of groups of positioning holes corresponding to the positioning posts; the plurality of groups of positioning holes are inserted into the plurality of groups of positioning posts; Preferably, the bidirectional synchronous displacement mechanism includes a top support plate, a side support plate, a sliding bottom plate, a middle support plate, a fixed bridge plate, a slide rod, a linear bearing, a floating plate, a motor fixing frame, a displacement motor, a coupling, a bearing seat, a tail support seat, a screw rod, a nut seat, a limit block, a displacement slide rail, a locking support block, a displacement hinge seat, a hinge rod, and a connecting arm; the side support plates are provided with two groups, which are symmetrically fixed on both sides of the top support plate, the sliding bottom plate is fixedly provided at the bottom of the two groups of side support plates, and the middle support plate is fixedly provided at Between the two groups of side support plates, located in the middle of the top support plate and the sliding bottom plate, multiple groups of sliding rods are fixedly arranged on the middle support plate, the fixed bridge plate is fixedly arranged on the top of the multiple groups of sliding rods, and each group of sliding rods is movably sleeved with linear bearings, the floating plate is fixedly arranged on the multiple groups of linear bearings, the motor fixing frame is fixedly arranged on the sliding bottom plate, the displacement motor is fixedly arranged on the motor fixing frame, the bearing seat is fixedly arranged on the middle support plate, and the tail support seat is fixedly arranged on the fixed On the bridge plate, the screw rod is movably sleeved in the bearing seat and the tail support seat through a bearing, the shaft end of the displacement motor and the shaft end of the screw rod are fixedly connected through the coupling to transmit power, the nut seat is fixedly arranged on the floating plate, and is movably connected to the screw rod through a thread, the limit block is fixedly arranged on the side of the middle support plate close to the floating plate, the displacement slide rail is provided with multiple groups, and is fixedly arranged in parallel on the sliding bottom plate, the locking support block is provided with two groups, which are respectively symmetrically arranged on the displacement slide rail through a slider relative to the screw rod, and each group of the locking support blocks is fixedly provided with two displacement hinge seats, and four displacement hinge seats are evenly fixedly arranged at the four corners of the floating plate, two of which form a group, corresponding to the displacement hinge seats on the two groups of the locking support blocks, and are respectively movably hinged through the connecting arm, and are fixed by the hinge rod to limit the relative displacement freedom, so that the connecting arm can be hinged and rotated relative to the displacement hinge seat; the quick-insert locking mechanism is provided with two groups, which are symmetrically fixedly arranged on the two groups of the locking support blocks; Preferably, the mode switching mechanism includes a turntable support seat, a flip motor, a rotating turntable seat, a rotating motor, and a rotating seat; the flip motor is fixedly arranged on one side of the turntable support seat, the rotating turntable seat is movably arranged in the turntable support seat through a bearing, the shaft end of the flip motor is movably connected to the rotating turntable seat through a gear pair, the rotating motor is fixedly arranged on the rotating turntable seat, the rotating seat is movably arranged on the rotating turntable seat through a bearing, and the shaft end of the rotating motor is movably connected to the rotating seat through a gear pair; Preferably, the mode switching mechanism further comprises a transition connecting plate, the transition connecting plate is fixedly arranged on the rotating seat, and a positioning magnetic opening is provided on the top supporting plate; the transition connecting plate is embedded in the magnetic opening and fixedly connected to the top supporting plate; Preferably, the bolt and nut fastening device for automobile processing also includes a two-way driving mechanism, which includes a cantilever support beam, an X-guide rail, an X-axis rack, a large arm slide plate, an X-axis motor, a gear, left and right support slide plates, a fastening baffle, a Z-axis slider, a Z-axis ram, a Z-guide rail, a Z-axis rack, a Z-axis motor, and a turntable fixing seat; the X-guide rail is provided with multiple groups, which are fixedly arranged in parallel on the cantilever support beam, the X-axis rack is fixedly arranged on the cantilever support beam and arranged parallel to the X-guide rail, the large arm slide plate is movably arranged on the X-guide rail through multiple groups of sliders, the X-axis motor is fixedly arranged on the large arm slide plate, and is movably connected with the X-axis rack through a gear fixedly arranged on the shaft end of the X-axis motor, and meshes with the transmission, and the left and right support slide plates are provided with Two groups are arranged, which are symmetrically fixed on the big arm slide and fixedly connected by the fastening baffle. Two groups of Z-direction slide blocks are arranged, each group is provided with a plurality of slide blocks, and the two groups are symmetrically fixed on the inner sides of the two groups of left and right support slide blocks respectively facing each other. Two groups of Z-guide rails are arranged, which are symmetrically fixed on the two side surfaces of the Z-direction slide block respectively, and are movably connected with the Z-direction slide blocks fixedly arranged on the inner sides of the two groups of left and right support slide blocks. The Z-direction rack is fixedly arranged on the side of the Z-direction slide block close to the cantilever support beam, the Z-direction motor is fixedly arranged on the side of the big arm slide block away from the X-direction motor, and a gear is fixedly arranged on its shaft end, and meshes with the Z-direction rack for transmission. The turntable fixing seat is fixedly arranged on the bottom of the Z-direction slide block, and the other side of the turntable fixing seat is fixedly connected to the turntable support seat; Preferably, the bolt and nut fastening device for automobile processing also includes a rotating chassis mechanism, the rotating chassis mechanism includes a chassis fixing plate, a chassis support seat, a chassis rotating motor, a rotating pinion, a turntable support sleeve, a rotating bearing, a turntable shaft, a turntable, a rotating large gear, a locking cap, and a support column; the chassis support seat is fixedly arranged on the chassis fixing plate, the chassis rotating motor is fixedly arranged on the chassis support seat, and a rotating pinion is fixedly arranged on the shaft end of the chassis, the turntable support sleeve is fixedly arranged on the chassis support seat, and the two are coaxially arranged, the turntable shaft is movably arranged in the turntable support sleeve through multiple groups of rotating bearings, the turntable is fixedly arranged on the top of the turntable shaft, the rotating large gear is fixedly sleeved on the turntable shaft and locked by the locking cap, the rotating pinion and the rotating large gear are meshed for transmission, the support column is fixedly arranged on the turntable, and the cantilever support beam is fixedly arranged on the support column; Preferably, a turntable boss is fixedly provided on the turntable, and a large toothed disc boss is fixedly provided on the rotating large gear; the turntable is fixedly sleeved on the turntable shaft, the turntable boss contacts the inner ring of the rotating bearing arranged on the upper side to support the turntable, the rotating large gear is fixedly sleeved on the turntable shaft, the large toothed disc boss contacts the inner ring of the rotating bearing arranged on the lower side, and is locked by the locking cap; A method for using a bolt and nut fastening device for automobile processing comprises the following steps: S1, the chassis rotating motor rotates, the rotating small gear and the rotating large gear mesh and drive the turntable shaft to rotate, thereby driving the turntable to rotate, and driving the cantilever support beam to rotate along the axis of the support column through the support column; S2, the X-direction motor drives the upper arm slide to move linearly along the X-direction guide rail through the gear rack transmission, and the Z-direction motor drives the Z-direction ram to move linearly along the Z-direction slider through the gear rack transmission, thereby driving the mode switching mechanism on the turntable fixing seat to move; S3, the flip motor rotates, driving the rotating turntable seat to rotate along the two ends of the turntable support seat, and the rotating motor rotates, driving the rotating seat to rotate on the rotating turntable seat; S4, the rotating motor rotates, driving the rotating seat to rotate on the rotating turntable seat, thereby driving the bidirectional synchronous displacement mechanism to rotate along the axis of the rotating turntable seat through the connecting plate to switch the locking position; S5, the displacement motor rotates, driving the screw to rotate through the coupling, thereby driving the nut seat to move up and down along the screw, thereby driving the floating plate to move linearly along the axis of the slide rod, so that the locking support block and the displacement hinge seat on the floating plate are movably hinged through the hinge rod, pushing the two groups of the locking support blocks to move linearly toward each other along the displacement slide rail, so as to adjust the distance between the two groups of the quick-insertion locking mechanisms; S6. When in use, the locking motor rotates, thereby driving the disassembly sleeve to rotate through the locking main drive rod, the transition sleeve, and the replacement transition rod, thereby achieving the tightening of the bolts and nuts; S7, when the transition sleeve needs to be replaced, the quick plug pin is removed from the quick plug hole, so that the transition sleeve can be separated from the locking main drive rod for replacement; S8. When the replacement transition rod of different specifications needs to be replaced, the screws can be removed and loosened. When installing, multiple groups of positioning holes are inserted into multiple groups of positioning columns, and then the fixing screws are tightened; Compared with the prior art, the present invention has the following beneficial effects: 1. By setting a transition sleeve and replacing the transition rod, the size of the standard positioning square can be increased, and the shear resistance of the locking main drive rod can be improved, thereby increasing the service life of the locking main drive rod. Frequent tangential force causes wear and tear, which can be replaced by replacing the transition rod, reducing the cost of replacing accessories and improving the convenience of replacing accessories.

[0016] 2. By setting the standard positioning square and positioning square groove, the matching accuracy is improved while ensuring quick disassembly and quick replacement. The design of quick plug holes and quick plug pins can effectively prevent falling off during the work process while ensuring quick disassembly and quick replacement. The design of positioning columns and positioning holes can improve the assembly accuracy and the shear resistance of accessories, effectively preventing the fixing screws from being cut off by shear torque.

[0017] 3. By setting up a bidirectional synchronous displacement mechanism, the diagonal synchronous locking of bolts and nuts at different positions is ensured, which effectively improves the uniformity of force on parts assembly during automobile processing. At the same time, the locking at different distances can be effectively adjusted to improve work efficiency.

[0018] 4. By setting the displacement slide rail, locking support block, displacement hinge seat, hinge rod and connecting arm, the synchronization and symmetry of the displacement of the two sets of quick-insert locking mechanisms are effectively improved, and the displacement accuracy is improved.

[0019] 5. By setting the transition connection plate and positioning magnetic mouth, the precision control of equipment installation is effectively improved, and the equipment assembly efficiency is improved at the same time. Through simple magnetic mouth positioning, there is no need for cumbersome adjustment mechanism, the assembly is simple and the functionality is strong.

[0020] 6. By setting the mode switching mechanism, the angle of the equipment can be adjusted for screws at different angles, which improves the applicability of the equipment. Not only can the vertical and horizontal workstations be switched at any time, but also the bolts and nuts at special angles can be fixed.

[0021] 7. By setting up a two-way driving mechanism, the processing range of the equipment can be effectively improved. It can be used for parts of different heights and widths, thus improving the practicability of the equipment.

[0022] 8. By fixing the Z-direction slider on the left and right supporting slides and the Z-direction guide rail on the Z-direction slide, the structural rigidity of the equipment is effectively improved, and the overall structural stability of the equipment is improved.

[0023] 9. By setting up a rotating chassis mechanism, the working area of ​​the equipment can be doubled. For automotive parts that are inconvenient to place, or to open a double-station or four-station assembly platform, all can be achieved using a set of equipment, effectively improving the working efficiency of the equipment.

[0024] 10. By setting the turntable boss and the large gear plate boss, the bearing can be pressed and the turntable and the large gear plate can be prevented from scratching the gears and affecting the normal rotation. At the same time, the stability of the chassis structure can be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings: Figure 1 It is the front view of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a left view of the bidirectional synchronous displacement mechanism of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the bidirectional synchronous displacement mechanism of the present invention; Figure 5 for Figure 3 Schematic diagram of the structure of the cross section in the AA direction; Figure 6 for Figure 5 A partial enlarged schematic diagram of the middle B area; Figure 7 It is a schematic diagram of the three-dimensional structure of the transition sleeve of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the transition rod replacement of the present invention; Fig. 9 for Figure 4 A partial enlarged schematic diagram of the middle C area; Fig.10 for Figure 5 A partial enlarged schematic diagram of the middle D area; Fig.11 for Figure 2 A partial enlarged schematic diagram of the middle E area; Fig.12 for Figure 2 A partial enlarged schematic diagram of the middle F area; Fig.13 It is a left side view of the rotating chassis mechanism of the present invention; Fig.14 for Fig.13 Schematic diagram of the structure of the cross section in the GG direction; Fig.15 for Fig.14 A partial enlarged schematic diagram of the middle H region; In the figure: 1. Quick-insert locking mechanism; 101. Locking motor; 102. Locking main drive rod; 103. Transition sleeve; 104. Replacement of transition rod; 105. Disassembly sleeve; 106. Standard positioning square; 107. Positioning square groove; 108. Quick-insert hole; 109. Quick-insert pin; 110. Positioning column; 111. Positioning hole; 2. Bidirectional synchronous displacement mechanism; 201. Top support plate; 202. Side support plate; 203. Sliding bottom plate; 204. Middle support plate ; 205, fixed bridge plate; 206, slide bar; 207, linear bearing; 208, floating plate; 209, motor fixing frame; 210, displacement motor; 211, coupling; 212, bearing seat; 213, tail support seat; 214, screw rod; 215, nut seat; 216, limit block; 217, displacement slide rail; 218, locking support block; 219, displacement articulated seat; 220, articulated rod; 221, connecting arm; 222, positioning magnetic port; 3, mode switching Mechanism; 301, turntable support seat; 302, flip motor; 303, rotating turntable seat; 304, rotating motor; 305, rotating seat; 306, transition connecting plate; 4, two-way driving mechanism; 401, cantilever support beam; 402, X-direction guide rail; 403, X-direction rack; 404, big arm slide plate; 405, X-direction motor; 406, gear; 407, left and right support slide plates; 408, fastening baffle; 409, Z-direction slide block; 410, Z-direction slide ram; 411 , Z-direction guide rail; 412, Z-direction rack; 413, Z-direction motor; 414, turntable fixing seat; 5, rotating chassis mechanism; 501, chassis fixing plate; 502, chassis support seat; 503, chassis rotating motor; 504, rotating small gear; 505, turntable support sleeve; 506, rotating bearing; 507, turntable shaft; 508, turntable; 509, rotating large gear; 510, locking cap; 511, support column; 512, turntable boss; 513, large gear boss; DETAILED DESCRIPTION Example 1

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 15A bolt and nut fastening device for automobile processing, comprising a quick-insert locking mechanism 1, wherein the quick-insert locking mechanism 1 comprises a locking motor 101, a locking main drive rod 102, a transition sleeve 103, a replacement transition rod 104, and a disassembly sleeve 105; one end of the locking main drive rod 102 is fixedly connected to the output end of the locking motor 101, and the other end thereof is movably connected to the transition sleeve 103 by plugging and unplugging, the end of the transition sleeve 103 away from the locking main drive rod 102 is fixedly connected to the end of the replacement transition rod 104, and the end of the replacement transition rod 104 away from the transition sleeve 103 is movably connected to the disassembly sleeve 105 by plugging and unplugging; when in use, the locking motor 101 rotates, thereby driving the disassembly sleeve 105 to rotate through the locking main drive rod 102, the transition sleeve 103, and the replacement transition rod 104, so as to achieve the tightening of the bolts and nuts; The quick-insert locking mechanism 1 is fixedly provided with a bidirectional synchronous displacement mechanism 2 for synchronous displacement; The bidirectional synchronous displacement mechanism 2 is fixedly provided with a mode switching mechanism 3 of a rotation angle.

[0028] In some embodiments, see Figure 6-7 The locking main drive rod 102 is fixedly provided with a standard positioning square 106, the transition sleeve 103 is provided with a positioning square groove 107 on the top, and the outer surface of the transition sleeve 103 is provided with a penetrating quick plug hole 108 along the positioning square groove 107. The quick plug type locking mechanism 1 also includes a quick plug pin 109; the quick plug pin 109 is fixedly arranged in the quick plug hole 108 to limit the relative displacement of the transition sleeve 103 relative to the locking main drive rod 102; when in use, the transition sleeve 103 needs to be replaced. When the transition sleeve 103 is installed, the quick plug pin 109 is removed from the quick plug hole 108, so that the transition sleeve 103 can be separated from the locking main drive rod 102 for replacement; by setting the transition sleeve and replacing the transition rod, the size of the standard positioning square can be increased, the shear resistance of the locking main drive rod can be improved, thereby increasing the service life of the locking main drive rod, and the frequent tangential force causes wear and tear by replacing the transition rod, which reduces the cost of replacing accessories and also improves the convenience of replacing accessories.

[0029] In some embodiments, see Figure 7-8A plurality of groups of positioning posts 110 are fixedly provided on the transition sleeve 103, and a plurality of groups of positioning holes 111 corresponding to the positioning posts 110 are opened on the replacement transition rod 104; the plurality of groups of positioning holes 111 are inserted into the plurality of groups of positioning posts 110; during use, when it is necessary to replace the replacement transition rod 104 of different specifications, the screws can be removed and loosened to loosen the looseness; during installation, the plurality of groups of positioning holes 111 are inserted into the plurality of groups of positioning posts 110, and then the fixing screws are tightened; by setting standard positioning squares and positioning square grooves, the matching accuracy is improved while ensuring quick release and quick replacement; by the design of quick plug holes and quick pins, the falling off during the working process is effectively prevented while ensuring quick release and quick replacement; by the design of positioning posts and positioning holes, the shear resistance of accessories is improved while improving the assembly accuracy, and the fixing screws are effectively prevented from being cut off by shear torque.

[0030] In some embodiments, see Figure 4 , Fig. 9 , Fig.10The bidirectional synchronous displacement mechanism 2 includes a top support plate 201, a side support plate 202, a sliding base plate 203, a middle support plate 204, a fixed bridge plate 205, a slide rod 206, a linear bearing 207, a floating plate 208, a motor fixing frame 209, a displacement motor 210, a coupling 211, a bearing seat 212, a tail support seat 213, a screw rod 214, a nut seat 215, a limit block 216, a displacement slide rail 217, a locking support block 218, a displacement hinge seat 219, a hinge rod 220, and a connecting arm 221; the side support plates 202 are provided with two groups, symmetrically fixedly arranged on both sides of the top support plate 201, and the sliding base plates 203 are fixedly arranged on the two groups of the side support plates 2 02 bottom, the middle support plate 204 is fixedly arranged between the two groups of side support plates 202, and is located in the middle position of the top support plate 201 and the sliding bottom plate 203. A plurality of slide bars 206 are fixedly arranged on the middle support plate 204. The fixed bridge plate 205 is fixedly arranged on the top of the plurality of slide bars 206. A linear bearing 207 is movably sleeved on each group of slide bars 206. The floating plate 208 is fixedly arranged on the plurality of linear bearings 207. The motor fixing frame 209 is fixedly arranged on the sliding bottom plate 203. The displacement motor 210 is fixedly arranged on the motor fixing frame 209. The bearing seat 212 is fixedly arranged on the middle support plate 204 The tail support seat 213 is fixedly arranged on the fixed bridge plate 205, the screw rod 214 is movably sleeved in the bearing seat 212 and the tail support seat 213 through the bearing, the shaft end of the displacement motor 210 is fixedly connected with the shaft end of the screw rod 214 through the coupling 211 to transmit power, the nut seat 215 is fixedly arranged on the floating plate 208, and is movably connected with the screw rod 214 through a thread, the limit block 216 is fixedly arranged on the side of the middle support plate 204 close to the floating plate 208, the displacement slide rail 217 is provided with multiple groups, and is fixedly arranged in parallel on the sliding bottom plate 203, and the locking support block 218 is provided with two groups, which are respectively connected by sliding The blocks are arranged on the displacement slide rail 217 in a linearly symmetrical manner relative to the screw rod 214. Two displacement hinge seats 219 are fixedly arranged on each group of the locking support blocks 218. Four displacement hinge seats 219 are evenly fixedly arranged at the four corners of the floating plate 208. Two of them form a group, corresponding to the displacement hinge seats 219 on the two groups of the locking support blocks 218, and are respectively movably hinged by the connecting arms 221 and fixed by the hinge rods 220 to limit the relative displacement freedom, so that the connecting arms 221 are hinged and rotated relative to the displacement hinge seats 219; the quick-insert locking mechanism 1 is provided with two groups, which are symmetrically fixed on the two groups of the locking support blocks 218;When in use, the displacement motor 210 rotates, and drives the screw rod 214 to rotate through the coupling 211, thereby driving the nut seat 215 to move up and down along the screw rod 214, thereby driving the floating plate 208 to move linearly along the axis of the slide rod 206, so that the two groups of the locking support blocks 218 are pushed to move linearly toward each other along the displacement slide rail 217 through the movable hinge connection between the locking support block 218 and the displacement hinge seat 219 on the floating plate 208 through the hinge rod 220, so as to adjust the distance between the two groups of the quick-insertion type locking mechanism 1; by setting a bidirectional synchronous displacement mechanism, the diagonal synchronous locking of the bolts and nuts at different positions is guaranteed, and the uniformity of the force of the parts assembly during the automobile processing process is effectively improved. At the same time, the locking of different distances can be effectively adjusted, which improves the work efficiency. By setting the displacement slide rail, locking support block, displacement hinge seat, hinge rod, and connecting arm, the synchronization and symmetry of the displacement of the two groups of quick-insertion type locking mechanisms are effectively improved, and the displacement accuracy is improved. ;

[0031] In some embodiments, see Fig.11 The mode switching mechanism 3 includes a turntable support seat 301, a flip motor 302, a rotating turntable seat 303, a rotating motor 304, and a rotating seat 305; the flip motor 302 is fixedly arranged on one side of the turntable support seat 301, the rotating turntable seat 303 is movably arranged in the turntable support seat 301 through a bearing, the shaft end of the flip motor 302 is movably connected to the rotating turntable seat 303 through a gear pair, the rotating motor 304 is fixedly arranged on the rotating turntable seat 303, the rotating seat 305 is movably arranged on the rotating turntable seat 303 through a bearing, and the shaft end of the rotating motor 304 is movably connected to the rotating seat 305 through a gear pair; when in use, the flip motor 302 rotates, driving the rotating turntable seat 303 to rotate along the two ends of the turntable support seat 301, and the rotating motor 304 rotates, driving the rotating seat 305 to rotate on the rotating turntable seat 303; In some embodiments, see Figure 4 , Fig.11The mode switching mechanism 3 also includes a transition connecting plate 306, which is fixedly arranged on the rotating seat 305, and a positioning magnetic port 222 is provided on the top support plate 201; the transition connecting plate 306 is embedded in the magnetic port 222 and is fixedly connected to the top support plate 201; when in use, the rotating motor 304 rotates, driving the rotating seat 305 to rotate on the rotating turntable seat 303, thereby driving the bidirectional synchronous displacement mechanism 2 to rotate along the axis of the rotating turntable seat 303 through the transition connecting plate 306 to switch the locking position; by setting the transition connecting plate and the positioning magnetic port, the precision control of the equipment installation is effectively improved, and the equipment assembly efficiency is improved at the same time. Through simple magnetic port positioning, there is no need for cumbersome adjustment mechanisms, and the assembly is simple and functional. By setting the mode switching mechanism, the angle of the equipment can be adjusted for screws at different angles, which improves the applicability of the equipment. Not only can it be switched at any time for vertical and horizontal workstations, but it can also work for bolt and nut fixation at special angles.

[0032] In some embodiments, see Fig.12The bolt and nut fastening device for automobile processing also includes a bidirectional driving mechanism 4, which includes a cantilever support beam 401, an X-direction guide rail 402, an X-direction rack 403, a large arm slide plate 404, an X-direction motor 405, a gear 406, left and right support slide plates 407, a fastening baffle 408, a Z-direction slider 409, a Z-direction ram 410, a Z-direction guide rail 411, a Z-direction rack 412, a Z-direction motor 413, and a turntable fixing seat 414; the X-direction guide rail 402 is provided with multiple groups, which are fixedly arranged in parallel on the cantilever support beam 401, and the X-direction rack 403 is fixedly arranged on the cantilever support beam 4 01, and is arranged parallel to the X-guide rail 402, the upper arm slide 404 is movably arranged on the X-guide rail 402 through multiple groups of sliders, the X-direction motor 405 is fixedly arranged on the upper arm slide 404, and is movably connected with the X-direction rack 403 through a gear fixedly arranged on the shaft end of the X-direction motor 405, and meshing transmission, the left and right support slides 407 are provided with two groups, symmetrically fixed on the upper arm slide 404, and fixedly connected through the fastening baffle 408, the Z-direction slide 409 is provided with two groups, each group is provided with a plurality of, and the two groups are symmetrically fixedly arranged on the two groups of The inner sides of the left and right support slides 407, the Z-direction guide rails 411 are provided with two groups, which are symmetrically fixed on the two sides of the Z-direction slide 410, and are movably connected with the two groups of Z-direction sliders 409 fixed on the inner sides of the left and right support slides 407. The Z-direction rack 412 is fixedly provided on the side of the Z-direction slide 410 close to the cantilever support beam 401, and the Z-direction motor 413 is fixedly provided on the side of the upper arm slide 404 away from the X-direction motor 405. The gear 406 is fixedly provided on the shaft end thereof, and is meshed with the Z-direction rack 412 for transmission. The turntable fixing seat 414 is fixedly provided on the The bottom of the Z-direction slide 410, and its other side is fixedly connected to the turntable support seat 301; when in use, the X-direction motor 405 drives the upper arm slide plate 404 to move linearly along the X-direction guide rail 402 through gear rack transmission, and the Z-direction motor 413 drives the Z-direction slide 410 to move linearly along the Z-direction slider 409 through gear rack transmission, thereby driving the mode switching mechanism 3 on the turntable fixed seat 414 to move; by setting a bidirectional driving mechanism, the processing range of the equipment can be effectively improved, and it can be used for parts of different heights and different widths, thereby improving the practicality of the equipment. By fixing the Z-direction slider on the left and right support slide plates, and the Z-direction guide rail is fixed on the Z-direction slide, the structural rigidity of the equipment is effectively improved, and the overall structural stability of the equipment is improved.

[0033] In some embodiments, see Figure 13-15The bolt and nut fastening device for automobile processing also includes a rotating chassis mechanism 5, which includes a chassis fixing plate 501, a chassis support seat 502, a chassis rotating motor 503, a rotating pinion 504, a turntable support sleeve 505, a rotating bearing 506, a turntable shaft 507, a turntable 508, a rotating large gear 509, a locking cap 510, and a support column 511; the chassis support seat 502 is fixedly arranged on the chassis fixing plate 501, the chassis rotating motor 503 is fixedly arranged on the chassis support seat 502, and a rotating pinion 504 is fixedly arranged on its shaft end, the turntable support sleeve 505 is fixedly arranged on the chassis support seat 502, and the turntable shaft 507 is movably arranged in the turntable support sleeve 505 through multiple groups of rotating bearings 506, and the turntable 508 is fixedly arranged on the top of the turntable shaft 507. The rotating large gear 509 is fixedly sleeved on the turntable shaft 507 and locked by the locking cap 510, the rotating small gear 504 and the rotating large gear 509 are meshed for transmission, the support column 511 is fixedly set on the turntable 508, and the cantilever support beam 401 is fixedly set on the support column 511; when in use, the chassis rotating motor 503 rotates, the rotating small gear 504 and the rotating large gear 509 are meshed for transmission, thereby driving the turntable shaft 507 to rotate, thereby driving the turntable 508 to rotate, and driving the cantilever support beam 401 to rotate along the axis of the support column 511 through the support column 511; by setting up a rotating chassis mechanism, the working area of ​​the equipment can be expanded by twice, and a set of equipment can be used to achieve the inconvenient placement of automotive parts or the establishment of a double-station or four-station assembly platform, thereby effectively improving the working efficiency of the equipment.

[0034] In some embodiments, see Fig.15 A turntable boss 512 is fixedly provided on the turntable 508, and a large toothed disc boss 513 is fixedly provided on the rotating large gear 509; the turntable 508 is fixedly sleeved on the turntable shaft 507, and the turntable boss 512 contacts the inner ring of the rotating bearing 506 arranged on the upper side to support the turntable 508; the rotating large gear 509 is fixedly sleeved on the turntable shaft 507, and the large toothed disc boss 513 contacts the inner ring of the rotating bearing 506 arranged on the lower side and is locked by the locking cap 510; by arranging the turntable boss and the large toothed disc boss, the bearings can be pressed while preventing the turntable and the large toothed disc from scratching the gears to affect normal rotation. At the same time, the stability of the chassis structure can be effectively improved.

[0035] A method for using a bolt and nut fastening device for automobile processing comprises the following steps: S1, the chassis rotating motor 503 rotates, the rotating small gear 504 and the rotating large gear 509 are meshed and driven to drive the turntable shaft 507 to rotate, thereby driving the turntable 508 to rotate, and driving the cantilever support beam 401 to rotate along the axis of the support column 511 through the support column 511; S2, the X-direction motor 405 drives the arm slide plate 404 to move linearly along the X-direction guide rail 402 through gear rack transmission, and the Z-direction motor 413 drives the Z-direction slide 410 to move linearly along the Z-direction slide block 409 through gear rack transmission, thereby driving the mode switching mechanism 3 on the turntable fixing seat 414 to move; S3, the flip motor 302 rotates, driving the rotating turntable seat 303 to rotate along the two ends of the turntable support seat 301, and the rotating motor 304 rotates, driving the rotating seat 305 to rotate on the rotating turntable seat 303; S4, the rotating motor 304 rotates, driving the rotating seat 305 to rotate on the rotating turntable seat 303, thereby driving the bidirectional synchronous displacement mechanism 2 to rotate along the axis of the rotating turntable seat 303 through the connecting plate 306, and switching the locking position; S5, the displacement motor 210 rotates, and drives the screw rod 214 to rotate through the coupling 211, thereby driving the nut seat 215 to move up and down along the screw rod 214, thereby driving the floating plate 208 to move linearly along the axis of the slide rod 206, so that the locking support block 218 and the displacement hinge seat 219 on the floating plate 208 are movably hinged through the hinge rod 220, and the two groups of the locking support blocks 218 are pushed to move linearly toward each other along the displacement slide rail 217, so as to adjust the distance between the two groups of the quick-insertion locking mechanisms 1; S6, the locking motor 101 rotates, thereby driving the disassembly sleeve 105 to rotate through the locking main drive rod 102, the transition sleeve 103, and the replacement transition rod 104, so as to achieve the tightening of the bolts and nuts; S7, when the transition sleeve 103 needs to be replaced, the quick plug pin 109 is removed from the quick plug hole 108, so that the transition sleeve 103 can be separated from the locking main driving rod 102 and replaced; S8. When the replacement transition rod 104 of different specifications needs to be replaced, the screws are removed and loosened. When installing, multiple groups of the positioning holes 111 are inserted into multiple groups of the positioning columns 110, and then the fixing screws are tightened; Obviously, the above embodiments are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. A bolt and nut fastening device for automobile processing, characterized in that: The quick-insertion locking mechanism (1) comprises a locking motor (101), a locking main drive rod (102), a transition sleeve (103), a replacement transition rod (104), and a disassembly sleeve (105); one end of the locking main drive rod (102) is fixedly connected to the output end of the locking motor (101), and the other end thereof is movably connected to the transition sleeve (103); one end of the transition sleeve (103) away from the locking main drive rod (102) is fixedly connected to one end of the replacement transition rod (104), and one end of the replacement transition rod (104) away from the transition sleeve (103) is movably connected to the disassembly sleeve (105); A bidirectional synchronous displacement mechanism (2) for synchronous displacement is fixedly arranged on the quick-insert locking mechanism (1); A mode switching mechanism (3) with a rotation angle is fixedly arranged on the bidirectional synchronous displacement mechanism (2).

2. A bolt and nut fastening device for automobile processing according to claim 1, characterized in that: A standard positioning square (106) is fixedly provided on the locking main driving rod (102), a positioning square groove (107) is provided on the top of the transition sleeve (103), a penetrating quick-insertion hole (108) is provided on the outer circumferential surface of the transition sleeve (103) along the positioning square groove (107), and the quick-insertion type locking mechanism (1) further comprises a quick-insertion pin (109); the quick-insertion pin (109) is fixedly provided in the quick-insertion hole (108) to limit the relative displacement of the transition sleeve (103) relative to the locking main driving rod (102).

3. A bolt and nut fastening device for automobile processing according to claim 2, characterized in that: A plurality of groups of positioning posts (110) are fixedly arranged on the transition sleeve (103), and a plurality of groups of positioning holes (111) corresponding to the positioning posts (110) are opened on the replacement transition rod (104); the plurality of groups of positioning holes (111) are inserted into the plurality of groups of positioning posts (110).

4. A bolt and nut fastening device for automobile machining according to claim 3, characterized in that: The bidirectional synchronous displacement mechanism (2) comprises a top support plate (201), a side support plate (202), a sliding bottom plate (203), a middle support plate (204), a fixed bridge plate (205), a slide rod (206), a linear bearing (207), a floating plate (208), a motor fixing frame (209), a displacement motor (210), a coupling (211), a bearing seat (212), a tail support seat (213), a screw rod (214), a nut seat (215), a limit block (216), a displacement slide rail (217), a locking support block (218), a displacement hinge seat (219), a hinge rod (220), and a connecting arm (221);The side support plates (202) are provided in two groups, symmetrically fixedly arranged on both sides of the top support plate (201); the sliding bottom plate (203) is fixedly arranged at the bottom of the two groups of the side support plates (202); the middle support plate (204) is fixedly arranged between the two groups of the side support plates (202), and is located in the middle position between the top support plate (201) and the sliding bottom plate (203); a plurality of groups of sliding rods (206) are fixedly arranged on the middle support plate (204); the fixed bridge plate (205) is fixedly arranged on the top of the plurality of groups of sliding rods (206); and a linear bearing (207) is movablely sleeved on each group of the sliding rods (206). ), the floating plate (208) is fixedly arranged on the plurality of groups of linear bearings (207), the motor fixing frame (209) is fixedly arranged on the sliding bottom plate (203), the displacement motor (210) is fixedly arranged on the motor fixing frame (209), the bearing seat (212) is fixedly arranged on the middle support plate (204), the tail support seat (213) is fixedly arranged on the fixed bridge plate (205), the screw rod (214) is movably sleeved in the bearing seat (212) and the tail support seat (213) through a bearing, and the shaft end of the displacement motor (210) and the shaft end of the screw rod (214) are connected to each other. The coupling (211) is fixedly connected to transmit power, the nut seat (215) is fixedly arranged on the floating plate (208) and is movably connected to the screw rod (214) through a thread, the limit block (216) is fixedly arranged on the side of the middle support plate (204) close to the floating plate (208), the displacement rails (217) are provided with a plurality of groups, which are fixedly arranged in parallel on the sliding bottom plate (203), the locking support blocks (218) are provided with two groups, which are respectively movably arranged on the displacement rails (217) through sliders in a linearly symmetrical manner relative to the screw rod (214), and each group of the locking support blocks (218) Two displacement hinge seats (219) are fixedly arranged on the floating plate (208); four displacement hinge seats (219) are evenly fixedly arranged at the four corners of the floating plate (208); two seats form a group, corresponding to the displacement hinge seats (219) on the two groups of locking support blocks (218), and are respectively movably hinged through the connecting arms (221) and fixed through the hinge rods (220) to limit the relative displacement freedom, so that the connecting arms (221) can be hinged and rotated relative to the displacement hinge seats (219); the quick-insert locking mechanism (1) is provided with two groups, which are symmetrically fixedly arranged on the two groups of locking support blocks (218). ; 5. The bolt and nut fastening device for automobile processing according to claim 4, characterized in that: The mode switching mechanism (3) comprises a turntable support seat (301), a flip motor (302), a rotating turntable seat (303), a rotating motor (304), and a rotating seat (305); the flip motor (302) is fixedly arranged on one side of the turntable support seat (301); the rotating turntable seat (303) is movably arranged in the turntable support seat (301) via a bearing; the shaft end of the flip motor (302) is movably connected to the rotating turntable seat (303) via a gear pair; the rotating motor (304) is fixedly arranged on the rotating turntable seat (303); the rotating seat (305) is movably arranged on the rotating turntable seat (303) via a bearing; and the shaft end of the rotating motor (304) is movably connected to the rotating seat (305) via a gear pair.

6. A bolt and nut fastening device for automobile machining according to claim 5, characterized in that: The mode switching mechanism (3) further comprises a transition connecting plate (306), wherein the transition connecting plate (306) is fixedly arranged on the rotating seat (305), and a positioning magnetic opening (222) is provided on the top supporting plate (201); the transition connecting plate (306) is embedded in the magnetic opening (222) and is fixedly connected to the top supporting plate (201).

7. A bolt and nut fastening device for automobile machining according to claim 6, characterized in that: The bolt and nut fastening device for automobile processing further comprises a bidirectional driving mechanism (4), wherein the bidirectional driving mechanism (4) comprises a cantilever support beam (401), an X-direction guide rail (402), an X-direction rack (403), a large arm slide plate (404), an X-direction motor (405), a gear (406), left and right support slide plates (407), a fastening baffle plate (408), a Z-direction slide block (409), a Z-direction ram (410), a Z-direction guide rail (411), a Z-direction rack (412), a Z-direction motor (413), and a turntable fixing seat (414); A plurality of guide rails (402) are provided and fixedly arranged in parallel on the cantilever support beam (401); the X-axis rack (403) is fixedly arranged on the cantilever support beam (401) and arranged in parallel with the X-axis guide rail (402); the upper arm slide plate (404) is movably arranged on the X-axis guide rail (402) via a plurality of slide blocks; the X-axis motor (405) is fixedly arranged on the upper arm slide plate (404) and movably connected to the X-axis rack (403) via a gear fixedly arranged on the shaft end of the X-axis motor (405); Meshing transmission, the left and right support slides (407) are provided with two groups, symmetrically fixedly arranged on the upper arm slide (404), and fixedly connected by the fastening baffle (408), the Z-direction slides (409) are provided with two groups, each group is provided with a plurality of slides, and the two groups are symmetrically fixedly arranged on the inner sides of the two groups of left and right support slides (407) facing each other, and the Z-direction guide rails (411) are provided with two groups, symmetrically fixedly arranged on the two side surfaces of the Z-direction slide (410), and connected with the Z-direction slide rails (411) fixedly arranged on the inner sides of the two groups of left and right support slides (407). The Z-axis rack (412) is movably connected to the slider (409), the Z-axis rack (412) is fixedly arranged on the side of the Z-axis slide (410) close to the cantilever support beam (401), the Z-axis motor (413) is fixedly arranged on the side of the upper arm slide (404) away from the X-axis motor (405), and a gear (406) is fixedly arranged on the shaft end thereof and meshes with the Z-axis rack (412) for transmission, and the turntable fixing seat (414) is fixedly arranged on the bottom of the Z-axis slide (410), and the other side of the turntable fixing seat (414) is fixedly connected to the turntable support seat (301).

8. The bolt and nut fastening device for automobile processing according to claim 7, characterized in that: The bolt and nut fastening device for automobile processing further comprises a rotating chassis mechanism (5), wherein the rotating chassis mechanism (5) comprises a chassis fixing plate (501), a chassis support seat (502), a chassis rotating motor (503), a rotating pinion (504), a turntable support sleeve (505), a rotating bearing (506), a turntable shaft (507), a turntable (508), a rotating large gear (509), a locking cap (510), and a support column (511); the chassis support seat (502) is fixedly arranged on the chassis fixing plate (501), the chassis rotating motor (503) is fixedly arranged on the chassis support seat (502), and a rotating pinion (504) is fixedly arranged on the shaft end of the chassis rotating motor (503). The turntable support sleeve (505) is fixedly arranged on the chassis support seat (502) and is coaxially arranged. The turntable shaft (507) is movably arranged in the turntable support sleeve (505) through multiple groups of rotating bearings (506). The turntable (508) is fixedly arranged on the top of the turntable shaft (507). The rotating large gear (509) is fixedly sleeved on the turntable shaft (507) and locked by the locking cap (510). The rotating small gear (504) and the rotating large gear (509) are meshed for transmission. The support column (511) is fixedly arranged on the turntable (508), and the cantilever support beam (401) is fixedly arranged on the support column (511).

9. A bolt and nut fastening device for automobile machining according to claim 8, characterized in that: A turntable boss (512) is fixedly provided on the turntable (508), and a large toothed disc boss (513) is fixedly provided on the rotating large gear (509); the turntable (508) is fixedly sleeved on the turntable shaft (507), the turntable boss (512) contacts the inner ring of the rotating bearing (506) arranged on the upper side, and supports the turntable (508); the rotating large gear (509) is fixedly sleeved on the turntable shaft (507), the large toothed disc boss (513) contacts the inner ring of the rotating bearing (506) arranged on the lower side, and is locked via the locking cap (510).

10. The method for using the bolt and nut fastening device for automobile processing according to claim 9, characterized in that: The steps include: S1, the chassis rotating motor (503) rotates, the rotating small gear (504) and the rotating large gear (509) mesh and transmit, thereby driving the turntable shaft (507) to rotate, thereby driving the turntable (508) to rotate, and driving the cantilever support beam (401) to rotate along the axis of the support column (511) through the support column (511); S2, the X-direction motor (405) drives the upper arm slide plate (404) to move linearly along the X-direction guide rail (402) through gear rack transmission, and the Z-direction motor (413) drives the Z-direction slide plate (410) to move linearly along the Z-direction slide block (409) through gear rack transmission, thereby driving the mode switching mechanism (3) on the turntable fixing seat (414) to move; S3, the flip motor (302) rotates, driving the rotating turntable seat (303) to rotate along the two ends of the turntable support seat (301), and the rotating motor (304) rotates, driving the rotating seat (305) to rotate on the rotating turntable seat (303); S4, the rotating motor (304) rotates, driving the rotating seat (305) to rotate on the rotating turntable seat (303), thereby driving the bidirectional synchronous displacement mechanism (2) to rotate along the axis of the rotating turntable seat (303) through the transition connecting plate (306), and switching the locking position; S5, the displacement motor (210) rotates, driving the screw rod (214) to rotate via the coupling (211), thereby driving the nut seat (215) to move up and down along the screw rod (214), thereby driving the floating plate (208) to move linearly along the axis of the slide rod (206), thereby driving the locking support block (218) and the displacement hinge seat (219) on the floating plate (208) to be movably hinged via the hinge rod (220), pushing the two groups of the locking support blocks (218) to move linearly towards each other along the displacement slide rail (217), so as to adjust the distance between the two groups of the quick-insert locking mechanisms (1); S6. When in use, the locking motor (101) rotates, thereby driving the disassembly sleeve (105) to rotate through the locking main drive rod (102), the transition sleeve (103), and the replacement transition rod (104), thereby achieving the tightening of the bolts and nuts; S7, when the transition sleeve (103) needs to be replaced, the quick plug pin (109) is removed from the quick plug hole (108), so that the transition sleeve (103) can be separated from the locking main drive rod (102) for replacement; S8. When the replacement transition rod (104) of a different specification needs to be replaced, the screws are removed and loosened. When installing, multiple groups of the positioning holes (111) are inserted into multiple groups of the positioning columns (110), and then the fixing screws are tightened.

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