Automatic correction equipment for horizontal motorcycle racks

Abstract

The present invention relates to an automatic correction device for a horizontal motorcycle frame, comprising a workbench, and a frame reference positioning assembly, a front riser correction assembly and a tail correction assembly arranged on the workbench, wherein the frame reference positioning assembly is arranged between the front riser correction assembly and the tail correction assembly, wherein the front riser correction assembly comprises a front riser correction base frame arranged on the workbench, and an overall deviation correction mechanism and a torsion correction mechanism arranged on the front riser correction base frame, wherein the torsion correction mechanism is rotatably connected with the overall deviation correction mechanism, wherein the tail correction assembly comprises a tail correction base frame arranged on the workbench, and a tail up-down correction mechanism and a tail front-back correction mechanism arranged on the tail correction base frame, wherein the tail up-down correction mechanism is arranged on the tail correction base frame. The present invention can not only reduce the occupied space, and can be applicable to the correction of motorcycle frames of various different models after the structure is simplified, but also has a higher correction accuracy than before, and the correction efficiency is also greatly improved.

Description

Technical Field

[0001] The invention relates to an automatic correction device, in particular to an automatic correction device for a horizontal motorcycle frame. Background Art

[0002] The existing motorcycle frame is a welded part, and the front seat tube and the rear part of the frame are easily deformed after welding. In order to ensure that the frame can meet the safety requirements, that is, the front seat tube has a higher torsional deviation accuracy requirement, the torsional deviation accuracy is controlled within ±0.3mm, the overall deviation is required to be controlled within ±0.5mm, the overall height accuracy of the rear part of the frame is required to be controlled within ±1.0mm, and the left and right height difference of the rear part is required to be controlled within ±0.5mm. Therefore, it is necessary to correct the frame after welding.

[0003] In the traditional correction mechanism of motorcycle frames, an oil cylinder is used as the correction power and a static mechanical linear gauge is used for measurement. This correction method not only has low sensitivity and a certain sluggishness in action, but also cannot form a continuous closed-loop feedback after correction, which easily leads to inadequate correction, making the correction accuracy poor and still having a certain error.

[0004] In order to overcome the shortcomings of the traditional motorcycle frame correction mechanism, the motorcycle frame correction device in the prior art is a vertical motorcycle frame correction device. Although it can overcome the defects of the motorcycle frame correction in the traditional technology, it occupies a large space, has a complex structure, and has limited torque. It is also not suitable for the correction of motorcycle frames of various models, which makes it poor in universality. In addition, the motorcycle frame is in a vertical state during correction, and the correction efficiency is not satisfactory and is not convenient to operate. Summary of the invention

[0005] The purpose of the present invention is to provide an automatic correction device for a horizontal motorcycle frame which can not only reduce the occupied space and simplify the structure so as to be applicable to the correction of motorcycle frames of various different models, but also has higher correction accuracy than before and greatly improved correction efficiency.

[0006] In order to achieve the above-mentioned purpose, the technical scheme of the present invention is: an automatic correction device for a horizontal motorcycle frame, the innovation of which is: comprising a workbench, and a frame reference positioning assembly arranged on the workbench for performing reference positioning on the frame, a front riser correction assembly for performing overall and torsional shaping of the front riser, and a tail correction assembly for performing overall and height shaping of the tail, wherein the frame reference positioning assembly is arranged between the front riser correction assembly and the tail correction assembly,

[0007] The front riser correction assembly comprises a front riser correction base frame, a front riser pre-positioning mechanism, a front riser overall deviation correction mechanism, a front riser torsion correction mechanism and a front riser detection mechanism. The front riser correction base frame and the front riser pre-positioning mechanism are both arranged on a workbench. The front riser overall deviation correction mechanism and the front riser detection mechanism are both arranged on the front riser correction base frame. The front riser torsion correction mechanism is rotatably connected to the front riser overall deviation correction mechanism, and the front riser pre-positioning mechanism is arranged on the outside of the front riser torsion correction mechanism. The detection part of the front riser detection mechanism is located above the front riser torsion correction mechanism.

[0008] The tail correction assembly includes a tail correction frame, a tail up and down correction mechanism, a tail front and back correction mechanism and a tail up and down correction detector. The tail correction frame is arranged on a workbench, the tail up and down correction mechanism and the tail up and down correction detector are both arranged on the tail correction frame, and the tail front and back correction mechanism is assembled and connected with the tail up and down correction mechanism, and the tail up and down correction detector is located above the tail front and back correction mechanism.

[0009] In the above technical solution, the front vertical tube integral deviation correction mechanism includes a first servo motor, a first ball screw, a first connecting seat and a vertical plate, the first servo motor is installed on the top of the front vertical tube correction base, and the output shaft of the first servo motor is transmission-connected to one end of the first ball screw through a reducer, the other end of the first ball screw is rotationally connected to the front vertical tube correction base, the first connecting seat is fixedly connected to the first ball screw, the vertical plate is fixedly connected to the first connecting seat, and both ends of the vertical plate are slidably matched with the front vertical tube correction base through guide rails.

[0010] The torsion correction mechanism of the front vertical pipe comprises a torsion correction plate, a first servo electric cylinder, a first cylinder, a first cylinder seat and a correction rod, the torsion correction plate is rotatably connected to the vertical plate through a bearing, the first servo electric cylinder is mounted on the vertical plate, and the power output part of the first servo electric cylinder is rotatably connected to the torsion correction plate, the torsion correction plate is provided with two first cylinder seats arranged separately, and each first cylinder seat is provided with a front vertical pipe positioning sleeve for positioning and clamping the front vertical pipe, the inner side surface of one of the first cylinder seats is provided with a front vertical pipe reference positioning plate, the first cylinder is fixed on the first cylinder seat, the correction rod is provided on the push rod of the first cylinder, and the correction rods on the two first cylinders are coaxial, the correction rod is located in the front vertical pipe positioning sleeve, when the first cylinder is driven, the push rod of the first cylinder drives the correction rod to pass through the front vertical pipe positioning sleeve and insert into the inside of the front vertical pipe abutting against the front vertical pipe positioning sleeve,

[0011] The front riser pre-positioning mechanism comprises a front riser pre-positioning cylinder, a front riser pre-positioning cylinder seat and a first guide mechanism. The front riser pre-positioning cylinder seat is installed on a workbench and is located below between two first cylinder seats. The front riser pre-positioning cylinder is arranged on the front riser pre-positioning cylinder seat. The first guide mechanism is slidably matched with the front riser pre-positioning cylinder seat, and a push rod of the front riser pre-positioning cylinder is fixedly connected to the first guide mechanism.

[0012] The front riser detection mechanism includes a laser online shape measuring instrument and a first mounting arm, wherein the first mounting arm is arranged on the front riser correction base frame, and the laser online shape measuring instrument is fixed on the first mounting arm and is located above between the two first cylinder seats.

[0013] In the above technical solution, an adjustment plate is provided on the top of the first cylinder seat, and an oval-shaped adjustment hole is provided on the adjustment plate. A sleeve seat and a plurality of adjustment blocks are provided inside the first cylinder seat, and the sleeve seat is detachably connected to the first cylinder seat through fasteners in the oval-shaped adjustment hole of the adjustment plate, and the adjustment block is in contact with the sleeve seat, and the front riser positioning sleeve is provided on the sleeve seat. A mounting plate is provided on the outer side wall of the first cylinder seat, and the first cylinder is fixed on the mounting plate.

[0014] In the above technical solution, the front riser torsion correction mechanism is also provided with a manual detection front riser corrector, and the manual detection front riser corrector includes a front riser correction base, a column, a sliding adjustment block and a front riser correction detection plate. The front riser correction base is arranged on the front riser torsion correction mechanism, and the column is detachably connected to the front riser correction base, the front riser correction detection plate is fixedly connected to the sliding adjustment block, and the sliding adjustment block is mounted on the column and fastened as a whole by a fastening screw.

[0015] In the above technical solution, the first servo electric cylinder is installed on the vertical plate through a lifting frame, and the power output part of the first servo electric cylinder is provided with a second connecting seat, and the second connecting seat is rotatably connected to the torsion correction plate through a rotating shaft.

[0016] In the above technical scheme, the frame reference positioning assembly includes a reference positioning base, a gas-liquid booster cylinder, an upper positioning pressure head, a lower positioning pin shaft, a lower positioning cylinder, a positioning block, a lower positioning base, a frame support cylinder and a reference pre-positioning cylinder, the gas-liquid booster cylinder is installed on the top of the reference positioning base, the positioning block is fixed to the middle part of the reference positioning base, the push rod of the gas-liquid booster cylinder is fixedly connected with the upper positioning pressure head, and the upper positioning pressure head is provided with an upper reference positioning shaft, the workbench is provided with a lower positioning cylinder and a lower positioning base, the push rod of the lower positioning cylinder is provided with a lower positioning pin shaft, and the lower positioning pin shaft can pass through the lower positioning base and be coaxial with the upper reference positioning shaft, the positioning block is provided with a reference pre-positioning cylinder, and a frame support cylinder is provided on a support seat provided on the workbench and located on the outside of the lower positioning base, a second guide mechanism is provided on the support seat, and the push rod of the frame support cylinder is fixedly connected with the second guide mechanism.

[0017] In the above technical solution, the tail up and down correction mechanism includes a second servo motor, a second ball screw and a tail up and down correction base, the second servo motor is installed on the top of the tail correction base, and the power output shaft of the second servo motor is connected to one end of the second ball screw through a reducer, the tail up and down correction base is arranged inside the tail correction base, the other end of the second ball screw is connected to the tail up and down correction base, and the two ends of the tail up and down correction base are respectively slidably matched with the tail correction base through guide rails, the tail correction base is rotatably connected to the workbench, and the tail correction base is connected to the workbench as a whole through fasteners.

[0018] The front and rear correction mechanism of the tail comprises a second servo electric cylinder, a front and rear correction mechanical arm, a front and rear correction mechanical claw, a front and rear correction bracket and a front and rear correction detection mechanism of the tail. The front and rear correction bracket is installed on the upper and lower correction base of the tail. The front and rear correction bracket is provided with two front and rear correction mechanical arms arranged up and down, and the front and rear correction mechanical arms are slidably matched with the front and rear correction bracket. One end of each front and rear correction mechanical arm is provided with a front and rear correction mechanical claw connected to the front and rear correction mechanical claw for rotation therewith. The tail of the front and rear correction bracket is provided with two second servo electric cylinders, and the power output part of each second servo electric cylinder is respectively connected to the corresponding front and rear correction mechanical arm for transmission. The front and rear correction detection mechanism of the tail is arranged on the upper and lower correction base of the tail, and the front and rear correction detection mechanism of the tail is located between the two front and rear correction mechanical arms.

[0019] The tail up and down correction detector includes a first displacement sensor and a second mounting arm, one end of the second mounting arm is fixed on the tail correction base frame, and the first displacement sensor is arranged at the other end of the second mounting arm and is located above the front and rear correction mechanical claw.

[0020] In the above technical solution, the tail front and rear correction detection mechanism includes a support, a displacement sensor mounting plate, a guide shaft, a second displacement sensor and a protective plate. Supports are respectively provided at both ends of the tail upper and lower correction base. The displacement sensor mounting plate is connected to the two supports as a whole through a guide shaft. Two second displacement sensors are installed on the displacement sensor mounting plate and arranged up and down. The protective plate is arranged on the outer sides of the two second displacement sensors and is detachably connected to the displacement sensor mounting plate.

[0021] In the above technical scheme, a footrest mounting seat correction mechanism is provided on the workbench and located between the frame reference positioning assembly and the tail correction assembly. The footrest mounting seat correction mechanism includes a third servo electric cylinder, a footrest mounting seat correction plate, a correction seat mounting plate, a slider, a footrest mounting seat correction base and a footrest mounting seat correction detection mechanism. The third servo electric cylinder is installed on the top of the footrest mounting seat correction base, and the power output part of the third servo electric cylinder is transmission-connected with the correction seat mounting plate. A slider is provided on the back side of the correction seat mounting plate, and the slider is slidably matched with the footrest mounting seat correction base through a linear guide rail. The footrest mounting seat correction plate is fixed on the correction seat mounting plate, and the footrest mounting seat correction plate is provided with two positioning shafts arranged up and down and used to position the footrest mounting seat. The footrest mounting seat correction detection mechanism is arranged on the footrest mounting seat correction base and is located above the footrest mounting seat correction plate.

[0022] In the above technical solution, the footrest mounting seat correction detection mechanism includes a third displacement sensor and a displacement sensor mounting seat, the displacement sensor mounting seat is arranged on the footrest mounting seat correction base, and the third displacement sensor is fixed on the displacement sensor mounting seat.

[0023] The positive effect of the present invention is that after the horizontal motorcycle frame automatic correction device of the present invention is adopted, the present invention comprises a workbench, and a frame reference positioning assembly arranged on the workbench for performing reference positioning on the frame, a front riser correction assembly for performing overall and torsional shaping of the front riser, and a tail correction assembly for performing overall and height-deflection shaping of the tail, wherein the frame reference positioning assembly is arranged between the front riser correction assembly and the tail correction assembly.

[0024] Since the front riser correction assembly includes a front riser correction base frame, a front riser pre-positioning mechanism, a front riser overall deviation correction mechanism, a front riser torsion correction mechanism and a front riser detection mechanism, the front riser correction base frame and the front riser pre-positioning mechanism are both arranged on a workbench, the front riser overall deviation correction mechanism and the front riser detection mechanism are both arranged on the front riser correction base frame, the front riser torsion correction mechanism is rotatably connected to the front riser overall deviation correction mechanism, and the front riser pre-positioning mechanism is arranged on the outside of the front riser torsion correction mechanism, and the detection position of the front riser detection mechanism is located above the front riser torsion correction mechanism,

[0025] The tail correction assembly includes a tail correction base frame, a tail up-down correction mechanism, a tail front-back correction mechanism and a tail up-down correction detector. The tail correction base frame is arranged on a workbench. The tail up-down correction mechanism and the tail up-down correction detector are both arranged on the tail correction base frame. The tail front-back correction mechanism is assembled and connected with the tail up-down correction mechanism. The tail up-down correction detector is located above the tail front-back correction mechanism.

[0026] When in use, the motorcycle frame is first placed horizontally on the frame reference positioning assembly, and is accurately positioned by the frame reference positioning assembly. Then, the front riser of the motorcycle frame is pre-positioned by the front riser pre-positioning mechanism, and the front riser pre-positioning mechanism holds the front riser to ensure that the motorcycle frame as a whole can achieve reference positioning.

[0027] The torsion deviation of the front standpipe of the motorcycle frame is corrected first: the front standpipe torsion deviation correction mechanism clamps the front standpipe, and after the front standpipe is positioned, the front standpipe pre-positioning mechanism is actuated again to withdraw the support of the front standpipe, and the front standpipe detection mechanism detects the front standpipe, and the emitted laser is projected onto the outer circle contours at both ends of the front standpipe, and the detection values ​​of the left and right end circles of the front standpipe are compared with the set theoretical values ​​to determine the deviation, and the front standpipe torsion deviation correction mechanism performs torsion deviation correction on the front standpipe.

[0028] Then, the overall deviation of the front seat tube of the motorcycle frame is corrected: the front seat tube detection mechanism obtains the overall deviation value of the front seat tube again, and the front seat tube overall deviation correction mechanism corrects the overall deviation of the front seat tube. The front seat tube detection mechanism repeatedly obtains the actual values ​​of the overall deviation and torsion deviation of the front seat tube, and then compares them with the set theoretical values ​​and corrects them again until the front seat tube meets the torsion deviation accuracy and overall deviation accuracy.

[0029] Then, the motorcycle frame tail is corrected front and back (the height direction of the two tubes): the tail front and back correction mechanism detects the two tail tubes, and according to the side of the tail with a larger drop, drives the tail front and back correction mechanism to perform height correction of the two tail tubes of the frame until the height difference of the two tail tubes meets the accuracy requirement of the height direction of the two tail tubes.

[0030] Finally, the motorcycle frame tail is corrected up and down (the tail left and right overall deviation): the tail up and down correction detector detects the actual detection value of the motorcycle frame tail overall deviation and compares it with the set theoretical value, the tail up and down correction mechanism corrects the motorcycle frame tail, the tail front and rear correction mechanism and the tail up and down correction detector will repeatedly obtain the values ​​of the height direction and the left and right overall deviation of the two tubes of the motorcycle frame tail, and compare them with the set theoretical value to calibrate again, until the motorcycle frame tail meets the two tube height direction and the left and right overall deviation within the tolerance range, and meets the deviation accuracy requirements.

[0031] Compared with the vertical correction structure in the prior art, the horizontal correction structure of the present invention places the motorcycle frame as a whole horizontally on the structure and performs a quick and convenient reference positioning, the correction accuracy and consistency are significantly improved, and continuous closed-loop correction is possible. At the same time, the present invention can not only reduce the occupied space and simplify the structure to be applicable to the correction of motorcycle frames of various different models, but also has a higher correction accuracy than before, and the correction efficiency is also greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of a three-dimensional structure of a specific embodiment of the present invention;

[0033] Figure 2 yes Figure 1 Schematic diagram of another direction;

[0034] Figure 3 It is a schematic diagram of a three-dimensional structure in which the front standpipe correction assembly and the workbench are assembled as one body;

[0035] Figure 4 It is a three-dimensional structural schematic diagram of the front standpipe correction assembly of the present invention;

[0036] Figure 5 yes Figure 4 Schematic diagram of another direction;

[0037] Figure 6 yes Figure 4 A left side schematic diagram of ;

[0038] Figure 7 It is a schematic diagram of the three-dimensional structure of the manual detection front standpipe corrector of the present invention;

[0039] Figure 8 It is a schematic diagram of a three-dimensional structure in which the frame reference positioning assembly and the workbench are assembled as one body;

[0040] Fig. 9 It is a three-dimensional structural schematic diagram of the frame reference positioning assembly of the present invention;

[0041] Fig.10 It is a schematic diagram of a three-dimensional structure in which the tail correction assembly and the workbench are assembled as one body of the present invention;

[0042] Fig.11 It is a three-dimensional structural schematic diagram of the tail correction assembly of the present invention;

[0043] Fig.12 yes Fig.11 Schematic diagram of another direction;

[0044] Fig.13 A schematic three-dimensional structural diagram of the footrest mounting seat correction mechanism of the present invention. DETAILED DESCRIPTION

[0045] The present invention is further described below with reference to the accompanying drawings and given embodiments, but is not limited thereto.

[0046] like Figures 1 to 13 As shown, an automatic correction device for a horizontal motorcycle frame comprises a workbench 1, and a frame reference positioning assembly 4 arranged on the workbench 1 for performing reference positioning on the frame, a front riser correction assembly 2 for performing overall and torsional shaping of the front riser, and a tail correction assembly 3 for performing overall and height shaping of the tail, wherein the frame reference positioning assembly 4 is arranged between the front riser correction assembly 2 and the tail correction assembly 3.

[0047] The front riser correction assembly 2 includes a front riser correction base frame 21, a front riser pre-positioning mechanism 22, a front riser overall deviation correction mechanism 23, a front riser torsion correction mechanism 24 and a front riser detection mechanism 25. The front riser correction base frame 21 and the front riser pre-positioning mechanism 22 are both arranged on the workbench 1, the front riser overall deviation correction mechanism 23 and the front riser detection mechanism 25 are both arranged on the front riser correction base frame 21, the front riser torsion correction mechanism 24 is rotatably connected to the front riser overall deviation correction mechanism 23, and the front riser pre-positioning mechanism 22 is arranged on the outside of the front riser torsion correction mechanism 24, and the detection position of the front riser detection mechanism 25 is located above the front riser torsion correction mechanism 24.

[0048] The tail correction assembly 3 includes a tail correction frame 31, a tail up and down correction mechanism 32, a tail front and back correction mechanism 33 and a tail up and down correction detector 34. The tail correction frame 31 is arranged on the workbench 1, and the tail up and down correction mechanism 32 and the tail up and down correction detector 34 are both arranged on the tail correction frame 31, and the tail front and back correction mechanism 33 is assembled and connected with the tail up and down correction mechanism 32, and the tail up and down correction detector 34 is located above the tail front and back correction mechanism 33.

[0049] like Figure 3 , 4 As shown in Figures 5 and 6, in order to realize the closed-loop feedback correction of the overall deviation and torsional deviation of the front riser in the present invention, the overall deviation correction mechanism 23 of the front riser includes a first servo motor 230, a first ball screw 231, a first connecting seat 232 and a vertical plate 233. The first servo motor 230 is installed on the top of the front riser correction base 21, and the output shaft of the first servo motor 230 is transmission-connected to one end of the first ball screw 231 through a reducer, and the other end of the first ball screw 231 is rotationally connected to the front riser correction base 21, the first connecting seat 232 is fixedly connected to the first ball screw 231, the vertical plate 233 is fixedly connected to the first connecting seat 232, and both ends of the vertical plate 233 are slidably matched with the front riser correction base 21 through guide rails.

[0050] The front vertical tube torsion correction mechanism 24 includes a torsion correction plate 240, a first servo electric cylinder 241, a first cylinder 242, a first cylinder seat 243 and a correction rod 244. The torsion correction plate 240 is rotatably connected to the vertical plate 233 through a bearing. The first servo electric cylinder 241 is installed on the vertical plate 233, and the power output part of the first servo electric cylinder 241 is rotatably connected to the torsion correction plate 240. The torsion correction plate 240 is provided with two first cylinder seats 243 arranged separately, and each first cylinder seat 243 is provided with a front vertical tube positioning member for positioning and clamping the front vertical tube. The first cylinder 242 is fixed on the first cylinder seat 243, and a correction rod 244 is provided on the top rod of the first cylinder 242. The correction rods 244 on the two first cylinders 242 are coaxial. The correction rod 244 is located in the front standpipe positioning sleeve 245. When the first cylinder 242 is driven, the top rod of the first cylinder 242 drives the correction rod 244 to pass through the front standpipe positioning sleeve 245 and insert into the front standpipe inside the front standpipe abutting against the front standpipe positioning sleeve 245.

[0051] The front riser pre-positioning mechanism 22 comprises a front riser pre-positioning cylinder 220, a front riser pre-positioning cylinder seat 221 and a first guide mechanism 223. The front riser pre-positioning cylinder seat 221 is installed on the workbench 1 and is located below between the two first cylinder seats 243. The front riser pre-positioning cylinder 220 is arranged on the front riser pre-positioning cylinder seat 221. The first guide mechanism 223 is slidably matched with the front riser pre-positioning cylinder seat 221, and the top rod of the front riser pre-positioning cylinder 220 is fixedly connected to the first guide mechanism 223.

[0052] The front riser detection mechanism 25 includes a laser online shape measuring instrument 250 and a first mounting arm 251 . The first mounting arm 251 is arranged on the front riser correction base frame 21 , and the laser online shape measuring instrument 250 is fixed on the first mounting arm 251 and is located above and between the two first cylinder seats 243 .

[0053] like Figure 4As shown, in order to make the present invention applicable to the correction of front risers of different vehicle models, an adjustment plate 2411 is provided on the top of the first cylinder seat 243, and the adjustment plate 2411 has an oval-shaped adjustment hole. The interior of the first cylinder seat 243 is provided with a sleeve seat 246 and a plurality of adjustment blocks 247, and the sleeve seat 246 is detachably connected to the first cylinder seat 243 through fasteners in the oval-shaped adjustment hole of the adjustment plate 2411, and the adjustment block 247 abuts against the sleeve seat 246. The front riser positioning sleeve 245 is provided on the sleeve seat 246. A mounting plate 248 is provided on the outer side wall of the first cylinder seat 243, and the first cylinder 242 is fixed on the mounting plate 248. The specific working process is: according to the specific vehicle model and external dimensions of the front riser, the number of adjustment blocks 247 inside the first cylinder seat 243 is adjusted, and then the position of the sleeve seat 246 is determined according to the number of adjustment blocks 247. After the final position of the sleeve seat 246 is adjusted, it is detachably connected to the first cylinder seat 243 through the fasteners in the adjustment plate 2411.

[0054] like Figure 7 As shown, in order to manually re-test the corrected front riser and manually determine the correction effect of the front riser, a manual detection front riser corrector 26 is further provided on the front riser torsion correction mechanism 24. The manual detection front riser corrector 26 includes a front riser correction base 260, a column 261, a sliding adjustment block 262 and a front riser correction detection plate 263. The front riser correction base 260 is provided on the front riser torsion correction mechanism 24, and the column 261 is detachably connected to the front riser correction base 260. The front riser correction detection plate 263 is fixedly connected to the sliding adjustment block 262, and the sliding adjustment block 262 is sleeved on the column 261 and fastened as a whole by fastening screws. The specific working process is: according to the corrected external dimensions of the front riser, the position of the front riser correction detection plate 263 relative to the column 261 is adjusted by sliding the adjustment block 262, and then confirming whether the ends of the front riser correction detection plate 263 can fit on the two ends of the front riser. If they can fit on both ends of the front riser, it is determined that the front riser is corrected in place, otherwise, the correction of the front riser still does not meet the requirements.

[0055] like Figure 6 As shown, in order to ensure that the first servo electric cylinder 241 can smoothly drive the torsion correction plate 240 to rotate, the first servo electric cylinder 241 is installed on the vertical plate 233 through a lifting frame 249, and the power output part of the first servo electric cylinder 241 is provided with a second connecting seat 2410, and the second connecting seat 2410 is rotatably connected to the torsion correction plate 240 through a rotating shaft.

[0056] like Figure 8 , 9As shown, in order to realize the pre-positioning and reference positioning of the frame, the frame reference positioning assembly 4 includes a reference positioning base frame 41, a gas-liquid booster cylinder 42, an upper positioning pressure head 43, a lower positioning pin shaft 44, a lower positioning cylinder 45, a positioning block 46, a lower positioning base 47, a frame support cylinder 48 and a reference pre-positioning cylinder 411, wherein the gas-liquid booster cylinder 42 is installed on the top of the reference positioning base frame 41, the positioning block 46 is fixed in the middle of the reference positioning base frame 41, the top rod of the gas-liquid booster cylinder 42 is fixedly connected to the upper positioning pressure head 43, and the upper positioning pressure head 43 is provided with an upper reference Positioning shaft 431, a lower positioning cylinder 45 and a lower positioning base 47 are provided on the workbench 1, a lower positioning pin 44 is provided on the push rod of the lower positioning cylinder 45, and the lower positioning pin 44 can pass through the lower positioning base 47 and be coaxial with the upper reference positioning shaft 431, a reference pre-positioning cylinder 411 is provided on the positioning block 46, a frame supporting cylinder 48 is provided on the support seat 49 provided on the workbench 1 and located on the outer side of the lower positioning base 47, a second guide mechanism 410 is provided on the support seat 49, and the push rod of the frame supporting cylinder 48 is fixedly connected to the second guide mechanism 410. The specific working process is: pre-drive the frame support cylinder 48 and the reference pre-positioning cylinder 411, the push rod of the frame support cylinder 48 drives the second guide mechanism 410 to rise, and the motorcycle frame is placed horizontally on the positioning block 46 as a whole, and the middle part of the frame is supported on the second guide mechanism 410, and the push rod of the reference pre-positioning cylinder 411 is inserted into the machined part at the other end of the frame. At this time, drive the gas-liquid booster cylinder 42, and the push rod of the gas-liquid booster cylinder 42 drives the upper reference positioning shaft 431 to be inserted into the machined part at one end of the frame through the upper positioning pressure head 43. At the same time, the push rod of the frame support cylinder 48 and the push rod of the reference pre-positioning cylinder 411 descend, and finally the push rod of the lower positioning cylinder 45 drives the lower positioning pin shaft 44 to rise and be inserted into the machined part at the other end of the frame to complete the reference positioning of the frame.

[0057] like Fig.10 , 11As shown in Figures 1 and 12, in order to realize the front and rear correction and the up and down correction of the horizontal motorcycle frame, that is, the height correction of the two tubes at the rear of the motorcycle frame and the left and right overall deviation correction of the rear, the tail up and down correction mechanism 32 includes a second servo motor 320, a second ball screw 321 and a tail up and down correction base 322, the second servo motor 320 is installed on the top of the tail correction base 31, and the power output shaft of the second servo motor 320 is transmission-connected to one end of the second ball screw 321 through a reducer, the tail up and down correction base 322 is arranged inside the tail correction base 31, the other end of the second ball screw 321 is transmission-connected to the tail up and down correction base 322, and the two ends of the tail up and down correction base 322 are respectively slidably matched with the tail correction base 31 through guide rails, the tail correction base 31 is rotationally connected to the workbench 1, and the tail correction base 31 is connected to the workbench 1 as a whole through fasteners,

[0058] The tail front and rear correction mechanism 33 includes a second servo electric cylinder 330, a front and rear correction mechanical arm 331, a front and rear correction mechanical claw 332, a front and rear correction bracket 333 and a tail front and rear correction detection mechanism 35. The front and rear correction bracket 333 is installed on the tail upper and lower correction base 322. Two front and rear correction mechanical arms 331 arranged up and down are provided on the front and rear correction bracket 333, and the front and rear correction mechanical arms 331 are slidably matched with the front and rear correction bracket 333. One end of each front and rear correction mechanical arm 331 is provided with a front and rear correction mechanical claw 332 rotatably connected thereto. Two second servo electric cylinders 330 are provided at the tail of the front and rear correction bracket 333. The power output part of each second servo electric cylinder 330 is respectively connected to the corresponding front and rear correction mechanical arm 331 in transmission. The tail front and rear correction detection mechanism 35 is arranged on the tail upper and lower correction base 322, and the tail front and rear correction detection mechanism 35 is located between the two front and rear correction mechanical arms 331.

[0059] The tail up and down correction detector 34 includes a first displacement sensor 340 and a second mounting arm 341, one end of the second mounting arm 341 is fixed on the tail correction base 31, and the first displacement sensor 340 is arranged at the other end of the second mounting arm 341 and is located above the front and rear correction mechanical claw hand 332.

[0060] like Fig.12As shown, in order to achieve accurate detection of the front and rear of the tail, the front and rear correction detection mechanism 35 of the tail includes a support 350, a displacement sensor mounting plate 351, a guide shaft 352, a second displacement sensor 353 and a protective plate 354. Supports 350 are respectively provided at both ends of the tail upper and lower correction base 322. The displacement sensor mounting plate 351 is connected to the two supports 350 through the guide shaft 352. Two second displacement sensors 353 arranged in an upper and lower manner are installed on the displacement sensor mounting plate 351. The protective plate 354 is provided on the outer side surfaces of the two second displacement sensors 353 and is detachably connected to the displacement sensor mounting plate 351.

[0061] like Fig.13 As shown, in order to calibrate the footrest mounting seat of the motorcycle frame, a footrest mounting seat correction mechanism 5 is provided on the workbench 1 and between the frame reference positioning assembly 4 and the tail correction assembly 3. The footrest mounting seat correction mechanism 5 includes a third servo electric cylinder 51, a footrest mounting seat correction plate 52, a correction seat mounting plate 53, a slider 54, a footrest mounting seat correction base frame 55 and a footrest mounting seat correction detection mechanism 56. The third servo electric cylinder 51 is installed on the top of the footrest mounting seat correction base frame 55, and the movement of the third servo electric cylinder 51 The force output part is connected to the correction seat mounting plate 53 by transmission. The back of the correction seat mounting plate 53 is provided with a slider 54, and the slider 54 is slidably matched with the footrest mounting seat correction base frame 55 through a linear guide rail. The footrest mounting seat correction plate 52 is fixed on the correction seat mounting plate 53, and the footrest mounting seat correction plate 52 is provided with two positioning shafts 521 arranged up and down and used to position the footrest mounting seat. The footrest mounting seat correction detection mechanism 56 is arranged on the footrest mounting seat correction base frame 55 and is located above the footrest mounting seat correction plate 52. The specific working process is: the footrest mounting seats at the upper and lower ends of the horizontal motorcycle frame are inserted into the positioning shaft 521, and the footrest mounting seat correction detection mechanism 56 detects the footrest mounting seats at both ends of the motorcycle frame to determine whether the symmetrical direction size meets the tolerance requirements. Then, under the action of the third servo electric cylinder 51, the correction seat mounting plate 53 together with the footrest mounting seat correction plate 52 and slide up and down along the footrest mounting seat correction base frame 55 through the slider 54 to achieve the correction of the motorcycle frame footrest mounting seat.

[0062] like Fig.13 As shown, in order to detect the footrest mounting seat and prevent the symmetrical direction of the footrests at both ends of the motorcycle frame from being offset, the footrest mounting seat correction detection mechanism 56 includes a third displacement sensor 560 and a displacement sensor mounting seat 561, and the displacement sensor mounting seat 561 is arranged on the footrest mounting seat correction base 55, and the third displacement sensor 560 is fixed on the displacement sensor mounting seat 561.

[0063] Working process of the present invention:

[0064] Step 1: Base positioning of the frame;

[0065] The frame supporting cylinder 48, the reference pre-positioning cylinder 411 and the front standpipe pre-positioning cylinder 220 are driven in advance, and the push rod of the frame supporting cylinder 48 drives the second guide mechanism 410 to rise, so that the motorcycle frame is placed horizontally on the positioning block 46 as a whole, and the middle part of the frame is supported on the second guide mechanism 410, and the push rod of the reference pre-positioning cylinder 411 is inserted into the machined part at the other end of the frame, and the push rod of the front standpipe pre-positioning cylinder 220 drives the first guide mechanism 223 to rise to support the front standpipe. At this time, the gas-liquid booster cylinder 42 is driven, and the push rod of the gas-liquid booster cylinder 42 drives the upper reference positioning shaft 431 to be inserted into the machined part at one end of the frame through the upper positioning pressure head 43. At the same time, the push rod of the frame supporting cylinder 48 and the push rod of the reference pre-positioning cylinder 411 are lowered, and finally the push rod of the lower positioning cylinder 45 drives the lower positioning pin shaft 44 to rise and be inserted into the machined part at the other end of the frame, so as to complete the reference positioning of the frame;

[0066] Step 2: Correct the front riser of the frame;

[0067] a. Front standpipe torsion correction:

[0068] Before the front riser is corrected, one end of the front riser is attached to the front riser reference positioning plate 2412 of one of the first cylinder seats 243, the push rod of the front riser pre-positioning cylinder 220 drives the first guide mechanism 223 to descend and withdraw the support for the front riser, the laser probe of the laser online shape measuring instrument 250 emits a laser onto the outer circle contours of the left and right ends of the front riser, and the detection values ​​of the left and right ends of the front riser are compared with the set theoretical values ​​to determine the deviation. After the center of the front riser is determined, the torsion correction mechanism 23 of the front riser as a whole drives the torsion correction mechanism to rise together with the front riser as a whole, driving the first cylinder 242, and the first A cylinder 242 clamps the front vertical pipe, and the push rod of the first cylinder 242 moves with the correction rod 244, passes through the front vertical pipe positioning sleeve 245 and is inserted into the interior of the front vertical pipe. At this time, the first servo electric cylinder 241 is driven, and the second connecting seat 2410 of the power output part of the first servo electric cylinder 241 drives the torsion correction plate 240 through the rotating shaft and rotates relative to the vertical plate 233, and then the first cylinder 242 is released to clamp the front vertical pipe. Before each correction, the front vertical pipe needs to be tested, clamped, corrected, and finally released. The above actions are repeated until the torsion of the front vertical pipe meets the tolerance requirements and the torsion correction of the front vertical pipe is completed.

[0069] b. Overall deviation correction of front riser:

[0070] The laser probe of the laser online shape measuring instrument 250 obtains the overall deviation value of the front vertical tube again, and the first cylinder 242 clamps the front vertical tube. Since the front vertical tube torsion deviation correction mechanism 24 is installed on the vertical plate 233 as a whole, the first servo motor 230 drives the vertical plate 233 to move up and down through the first ball screw 231, and then releases the clamping of the front vertical tube. Before each correction, it is necessary to first detect, then clamp, then correct, and finally release, and the above actions are repeated until the overall deviation of the front vertical tube meets the tolerance requirements, and the overall deviation correction of the front vertical tube is completed;

[0071] The laser online shape measuring instrument 250 repeatedly obtains the overall deflection and torsion values ​​of the front riser, compares the detected results with the set theoretical values, and then calibrates again until the front riser meets the torsion accuracy and overall deflection accuracy. The correction structure of the front riser is not only further optimized, making its structure simpler, but also the correction accuracy is further improved, and the response speed is more sensitive;

[0072] Step 3: Correct the rear of the frame;

[0073] a. Front-to-rear correction of the rear part of the vehicle frame (the height direction of the two tubes): flip the previous front-to-rear correction mechanical claw 332 in advance to rotate it relative to the front-to-rear correction mechanical arm 331 connected to it, clamp the rear part of the vehicle frame between the two front-to-rear correction mechanical claws 332, flip the front-to-rear correction mechanical claw 332 again and position the rear part of the vehicle frame through the pin shaft, the rear part of the vehicle frame is positioned by the support frame, and under the detection of the rear front-to-rear correction detection mechanism 35, the second displacement sensor 353 detects the front-to-rear offset of the rear part. If the upper part of the rear part of the vehicle frame is offset, the second servo electric cylinder 330 disposed on the front-to-rear correction bracket 333 and located above drives the front-to-rear correction mechanical arm 331 connected to it to slide relative to the front-to-rear correction bracket 333, and the front-to-rear correction mechanical claw 332 on the front-to-rear correction mechanical arm 331 drives the upper part of the rear part of the vehicle frame to be corrected. Otherwise, the lower part of the rear part of the vehicle frame is corrected until the front-to-rear tolerance of the rear part of the vehicle frame meets the accuracy requirements;

[0074] b. Up and down correction of the rear part of the frame (the overall left and right deviation of the rear part):

[0075] The first displacement sensor 340 of the tail up-down correction detector 34 detects the left-right overall offset of the frame tail, and the second servo motor 320 drives the tail up-down correction base 322 to slide relative to the tail correction base 31 through the second ball screw 321 until the tolerance of the left-right overall offset of the frame tail meets the accuracy requirement, thereby realizing the up-down correction of the frame tail;

[0076] Step 4: Calibrate the frame footrest mounting seat;

[0077] The footrest mounting seats at the upper and lower ends of the horizontal motorcycle frame are inserted into the positioning shaft 521, and the third displacement sensor 560 of the footrest mounting seat correction detection mechanism 56 detects the footrest mounting seats at both ends of the motorcycle frame to determine the dimensional deviation in the symmetrical direction. Then, under the action of the third servo electric cylinder 51, the correction seat mounting plate 53 together with the footrest mounting seat correction plate 52 and the slider 54 slide up and down along the footrest mounting seat correction base 55, and repeat the above steps until the symmetrical direction dimensions of the footrest mounting seats at both ends of the frame meet the tolerance requirements, thereby realizing the correction of the motorcycle frame footrest mounting seats.

[0078] The present invention adjusts the frame rear correction assembly according to the model and appearance dimensions of the motorcycle frame actually being corrected, that is, the rear correction assembly 3 can rotate as a whole relative to the workbench 1, and the number of adjustment blocks 247 on the first cylinder seat 243 of the front riser correction assembly 2 determines the position of the sleeve seat 246 on the first cylinder seat 243, so as to ensure that the present invention can be applied to the correction of a variety of different models.

[0079] When the motorcycle frame is in a horizontal state as a whole, the present invention implements correction of the front vertical tube, the tail part and the footrest mounting seat, so as to ensure that the accuracy of the overall welded parts of the motorcycle frame meets the tolerance requirements. No matter whether it is the front vertical tube, the tail part or the footrest mounting seat, the present invention uses a measuring instrument to detect once during the correction process, and feeds back to the servo electric cylinder or the servo motor, and dynamically and real-time measures the actual measurement value after each correction and compares it with the set theoretical value. Only when the actual measurement value meets the tolerance requirements can the correction of the part be completed, and truly closed-loop correction is achieved, the correction response feedback time is short, and the correction accuracy and efficiency are optimized. Compared with the existing vertical correction structure, the present invention can not only reduce the occupied space and be applicable to the correction of motorcycle frames of various different models after the structure is simplified, but also has higher correction accuracy than before, and the correction efficiency is also greatly improved.

[0080] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A horizontal motorcycle frame automatic correction device, characterized in that: The invention comprises a workbench (1), and a frame reference positioning assembly (4) arranged on the workbench (1) for performing reference positioning on a frame, a front seat tube correction assembly (2) for performing overall and torsional shaping on a front seat tube, and a rear part correction assembly (3) for performing overall and height shaping on a rear part, wherein the frame reference positioning assembly (4) is arranged between the front seat tube correction assembly (2) and the rear part correction assembly (3). The front riser correction assembly (2) comprises a front riser correction base frame (21), a front riser pre-positioning mechanism (22), a front riser overall deviation correction mechanism (23), a front riser torsion correction mechanism (24) and a front riser detection mechanism (25); the front riser correction base frame (21) and the front riser pre-positioning mechanism (22) are both arranged on the workbench (1); the front riser overall deviation correction mechanism (23) and the front riser detection mechanism (25) are both arranged on the front riser correction base frame (21); the front riser torsion correction mechanism (24) is rotatably connected to the front riser overall deviation correction mechanism (23); the front riser pre-positioning mechanism (22) is arranged outside the front riser torsion correction mechanism (24); and the detection portion of the front riser detection mechanism (25) is located above the front riser torsion correction mechanism (24); The front vertical tube integral deviation correction mechanism (23) comprises a first servo motor (230), a first ball screw (231), a first connecting seat (232) and a vertical plate (233), wherein the first servo motor (230) is mounted on the top of the front vertical tube correction base frame (21), and the output shaft of the first servo motor (230) is transmission-connected to one end of the first ball screw (231) via a reducer, the other end of the first ball screw (231) is rotationally connected to the front vertical tube correction base frame (21), the first connecting seat (232) is fixedly connected to the first ball screw (231), the vertical plate (233) is fixedly connected to the first connecting seat (232), and both ends of the vertical plate (233) are slidably matched with the front vertical tube correction base frame (21) via guide rails. The tail correction assembly (3) comprises a tail correction base frame (31), a tail up-down correction mechanism (32), a tail front-back correction mechanism (33) and a tail up-down correction detector (34); the tail correction base frame (31) is arranged on the workbench (1); the tail up-down correction mechanism (32) and the tail up-down correction detector (34) are both arranged on the tail correction base frame (31); the tail front-back correction mechanism (33) is assembled and connected with the tail up-down correction mechanism (32); and the tail up-down correction detector (34) is located above the tail front-back correction mechanism (33). The tail up-and-down correction mechanism (32) comprises a second servo motor (320), a second ball screw (321) and a tail up-and-down correction base (322); the second servo motor (320) is mounted on the top of the tail correction base (31); the power output shaft of the second servo motor (320) is transmission-connected to one end of the second ball screw (321) via a reducer; the tail up-and-down correction base (322) is arranged inside the tail correction base (31); the other end of the second ball screw (321) is transmission-connected to the tail up-and-down correction base (322); and both ends of the tail up-and-down correction base (322) are respectively slidably matched with the tail correction base (31) via guide rails; the tail correction base (31) is rotationally connected to the workbench (1); and the tail correction base (31) and the workbench (1) are connected as a whole via fasteners.

2. The automatic correction device for a horizontal motorcycle frame according to claim 1, characterized in that: The front vertical tube twist correction mechanism (24) comprises a twist correction plate (240), a first servo electric cylinder (241), a first cylinder (242), a first cylinder seat (243) and a correction rod (244); the twist correction plate (240) is rotatably connected to the vertical plate (233) via a bearing; the first servo electric cylinder (241) is mounted on the vertical plate (233); and a power output portion of the first servo electric cylinder (241) is rotatably connected to the twist correction plate (240); two first cylinder seats (243) arranged separately are provided on the twist correction plate (240); and each first cylinder seat (243) is provided with a front vertical tube positioning member for positioning and clamping the front vertical tube. A sleeve (245), wherein the inner side surface of one of the first cylinder seats (243) is provided with a front riser reference positioning plate (2412), the first cylinder (242) is fixed on the first cylinder seat (243), a correction rod (244) is provided on the push rod of the first cylinder (242), and the correction rods (244) on the two first cylinders (242) are coaxial, and the correction rod (244) is located in the front riser positioning sleeve (245), when the first cylinder (242) is driven, the push rod of the first cylinder (242) drives the correction rod (244) to pass through the front riser positioning sleeve (245) and insert into the interior of the front riser abutting against the front riser positioning sleeve (245), The front riser pre-positioning mechanism (22) comprises a front riser pre-positioning cylinder (220), a front riser pre-positioning cylinder seat (221) and a first guide mechanism (223); the front riser pre-positioning cylinder seat (221) is mounted on the workbench (1) and is located below and between two first cylinder seats (243); the front riser pre-positioning cylinder (220) is disposed on the front riser pre-positioning cylinder seat (221); the first guide mechanism (223) is slidably matched with the front riser pre-positioning cylinder seat (221); and a push rod of the front riser pre-positioning cylinder (220) is fixedly connected to the first guide mechanism (223); The front standpipe detection mechanism (25) comprises a laser online shape measuring instrument (250) and a first mounting arm (251), wherein the first mounting arm (251) is arranged on the front standpipe correction base frame (21), and the laser online shape measuring instrument (250) is fixed on the first mounting arm (251) and is located above and between the two first cylinder seats (243).

3. The automatic correction device for a horizontal motorcycle frame according to claim 2, characterized in that: An adjustment plate (2411) is provided on the top of the first cylinder seat (243), and a round adjustment hole is provided on the adjustment plate (2411). A shaft sleeve seat (246) and a plurality of adjustment blocks (247) are provided inside the first cylinder seat (243), and the shaft sleeve seat (246) is detachably connected to the first cylinder seat (243) via a fastener in the round adjustment hole of the adjustment plate (2411), and the adjustment block (247) is in contact with the shaft sleeve seat (246). The front vertical pipe positioning shaft sleeve (245) is provided on the shaft sleeve seat (246), and a mounting plate (248) is provided on the outer wall of the first cylinder seat (243), and the first cylinder (242) is fixed on the mounting plate (248).

4. The automatic correction device for a horizontal motorcycle frame according to claim 1, characterized in that: The front standpipe torsion correction mechanism (24) is also provided with a manual detection front standpipe correction instrument (26), the manual detection front standpipe correction instrument (26) comprising a front standpipe correction base (260), a column (261), a sliding adjustment block (262) and a front standpipe correction detection plate (263), the front standpipe correction base (260) being provided on the front standpipe torsion correction mechanism (24), the column (261) being detachably connected to the front standpipe correction base (260), the front standpipe correction detection plate (263) being fixedly connected to the sliding adjustment block (262), and the sliding adjustment block (262) being sleeved on the column (261) and being fastened as a whole by fastening screws.

5. The automatic correction device for a horizontal motorcycle frame according to claim 2, characterized in that: The first servo electric cylinder (241) is mounted on the vertical plate (233) via a lifting frame (249), and a power output portion of the first servo electric cylinder (241) is provided with a second connecting seat (2410), and the second connecting seat (2410) is rotatably connected to the torsion correction plate (240) via a rotating shaft.

6. The automatic correction device for a horizontal motorcycle frame according to claim 1, characterized in that: The frame reference positioning assembly (4) comprises a reference positioning base frame (41), a gas-liquid booster cylinder (42), an upper positioning pressure head (43), a lower positioning pin shaft (44), a lower positioning cylinder (45), a positioning block (46), a lower positioning base (47), a frame support cylinder (48) and a reference pre-positioning cylinder (411), wherein the gas-liquid booster cylinder (42) is mounted on the top of the reference positioning base frame (41), the positioning block (46) is fixed to the middle of the reference positioning base frame (41), the top rod of the gas-liquid booster cylinder (42) is fixedly connected to the upper positioning pressure head (43), and the upper positioning pressure head (43) is provided with an upper reference positioning shaft (431), and the working A lower positioning cylinder (45) and a lower positioning base (47) are provided on the workbench (1); a lower positioning pin shaft (44) is provided on the top rod of the lower positioning cylinder (45); and the lower positioning pin shaft (44) can pass through the lower positioning base (47) and be coaxial with the upper reference positioning shaft (431); a reference pre-positioning cylinder (411) is provided on the positioning block (46); a frame supporting cylinder (48) is provided on the support seat (49) provided on the workbench (1) and located outside the lower positioning base (47); a second guide mechanism (410) is provided on the support seat (49); and the top rod of the frame supporting cylinder (48) is fixedly connected to the second guide mechanism (410).

7. The automatic correction device for a horizontal motorcycle frame according to claim 1, characterized in that: The tail front and rear correction mechanism (33) comprises a second servo electric cylinder (330), a front and rear correction mechanical arm (331), a front and rear correction mechanical claw (332), a front and rear correction bracket (333) and a tail front and rear correction detection mechanism (35), wherein the front and rear correction bracket (333) is mounted on a tail upper and lower correction base (322), and the front and rear correction bracket (333) is provided with two front and rear correction mechanical arms (331) arranged in an upper and lower manner, and the front and rear correction mechanical arms (331) are slidably matched with the front and rear correction bracket (333), each A front-to-back correction mechanical arm (331) is provided at one end with a front-to-back correction mechanical claw (332) rotatably connected thereto; two second servo electric cylinders (330) are provided at the tail of the front-to-back correction bracket (333); a power output section of each second servo electric cylinder (330) is respectively connected in transmission with a corresponding front-to-back correction mechanical arm (331); the tail front-to-back correction detection mechanism (35) is provided on a tail upper and lower correction base (322); and the tail front-to-back correction detection mechanism (35) is located between the two front-to-back correction mechanical arms (331); The tail up and down correction detector (34) comprises a first displacement sensor (340) and a second mounting arm (341), one end of the second mounting arm (341) being fixed to the tail correction base frame (31), and the first displacement sensor (340) being arranged at the other end of the second mounting arm (341) and located above the front and rear correction mechanical claw (332).

8. The automatic correction device for a horizontal motorcycle frame according to claim 7, characterized in that: The tail front and rear correction detection mechanism (35) comprises a support (350), a displacement sensor mounting plate (351), a guide shaft (352), a second displacement sensor (353) and a protective plate (354); supports (350) are respectively provided at both ends of the tail upper and lower correction base (322); the displacement sensor mounting plate (351) is integrally connected to the two supports (350) via the guide shaft (352); two second displacement sensors (353) arranged in an upper and lower manner are mounted on the displacement sensor mounting plate (351); and the protective plate (354) is provided on the outer side surfaces of the two second displacement sensors (353) and is detachably connected to the displacement sensor mounting plate (351).

9. The automatic correction device for a horizontal motorcycle frame according to claim 1, characterized in that: A footrest mounting seat correction mechanism (5) is provided on the workbench (1) and between the frame reference positioning assembly (4) and the tail correction assembly (3). The footrest mounting seat correction mechanism (5) comprises a third servo electric cylinder (51), a footrest mounting seat correction plate (52), a correction seat mounting plate (53), a slider (54), a footrest mounting seat correction base frame (55) and a footrest mounting seat correction detection mechanism (56). The third servo electric cylinder (51) is mounted on the top of the footrest mounting seat correction base frame (55), and the power output portion of the third servo electric cylinder (51) is connected to the correction seat mounting base frame (55). The footrest mounting seat correction plate (52) is fixed on the correction seat mounting plate (53), and the footrest mounting seat correction plate (52) is provided with two positioning shafts (521) arranged up and down and used for positioning the footrest mounting seat. The footrest mounting seat correction detection mechanism (56) is arranged on the footrest mounting seat correction base (55) and is located above the footrest mounting seat correction plate (52).

10. The automatic correction device for a horizontal motorcycle frame according to claim 9, characterized in that: The footrest mounting seat correction detection mechanism (56) comprises a third displacement sensor (560) and a displacement sensor mounting seat (561); the displacement sensor mounting seat (561) is arranged on the footrest mounting seat correction base frame (55); and the third displacement sensor (560) is fixed on the displacement sensor mounting seat (561).

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