A wire pulling mechanism for automobile inspection fixture

Abstract

The present invention discloses a wire pulling mechanism for automobile inspection tools, and relates to the technical field of automobile inspection tools. The wire pulling mechanism includes a wire pulling base, a fixed disk body, and a plurality of wire pulling column assemblies; it also includes a transmission telescopic assembly, a pulling assembly, at least one anti-rotation portion, and a plurality of back movement limiting portions. When the pulling assembly is connected to the anti-rotation portion, the anti-rotation portion can unidirectionally limit the pulling assembly from rotating around the connection between the pulling assembly and the support seat, and the side of the transmission telescopic assembly is also detachably connected to the end of the plurality of wire pulling column assemblies toward the pulling assembly; the plurality of back movement limiting portions correspond to the plurality of wire pulling column assemblies one by one, and the wire pulling column assemblies disconnected from the transmission telescopic assembly can be connected to the corresponding back movement limiting portions, and the back movement limiting portions limit the axial movement of the wire pulling column assemblies. The present invention has a simple structure, can meet the requirements for different pulling lengths when multiple inspection tool wires are pulled synchronously, improves the efficiency of pulling the wires, and can avoid the wires from moving back and becoming loose, is easy to operate, and has strong practicality.

Description

Technical Field

[0001] The invention relates to the technical field of automobile inspection tools, in particular to a wire pulling mechanism for an automobile inspection tool. Background Art

[0002] Inspection fixtures are simple tools used to inspect various sizes of products. They can improve production efficiency and control quality, and are suitable for mass-produced products. When inspecting various decorative panels and inner panels in automobiles, it is necessary to inspect whether their plate shape, curvature, and bending angle meet the requirements, which requires the use of automobile inspection fixtures.

[0003] At present, the pull wire in the traditional automobile inspection fixture is a single wire fixed on the pull wire mechanism. Each pull wire mechanism can only pull the pull wire and tighten it. When the tensioning mechanism is connected to multiple pull wires, the tensioning degree of the multiple pull wires needs to be kept synchronous, which cannot meet the requirements of multiple pull wires for different tensioning degrees. Summary of the invention

[0004] The object of the present invention is to provide a wire pulling mechanism for an automobile inspection tool to solve the problems raised in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A wire pulling mechanism for an automobile inspection fixture comprises a wire pulling base, a fixed disc and a plurality of wire pulling column assemblies, wherein the arc bottom of the fixed disc is fixed on the wire pulling base and the plurality of wire pulling column assemblies are arranged on the wire pulling base in a circumferentially distributed manner, and the wire pulling column assembly can move axially relative to the fixed disc; further comprising a transmission telescopic assembly, a pulling assembly, at least one anti-rotation portion and a plurality of return limiting portions, wherein one end of the pulling assembly is rotatably mounted on the wire pulling base through a support seat and the anti-rotation portion is fixed on the support seat, the anti-rotation portion is detachably connected to the end of the pulling assembly close to the support seat, and when the pulling assembly is connected to the anti-rotation portion, the anti-rotation portion can limit the pulling assembly in one direction It rotates around the connection with the support seat; the transmission telescopic assembly is arranged between the fixed disc and the pulling assembly, one end of the transmission telescopic assembly is connected to the center of the end surface of the fixed disc toward the pulling assembly and the other end is connected to the pulling assembly; the transmission telescopic assembly can be telescoped and the side of the transmission telescopic assembly is also detachably connected to the ends of multiple wire post assemblies toward the pulling assembly; multiple return limiting parts are circumferentially distributed on the edge of the fixed disc and the multiple return limiting parts correspond one by one to the multiple wire post assemblies, the wire post assembly disconnected from the transmission telescopic assembly can be connected to the corresponding return limiting part and the return limiting part limits the axial movement of the wire post assembly.

[0007] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0008] In an optional scheme: the wire pulling column assembly includes a wire pulling column, a guide sleeve, a rotating part and a wire pulling connecting part, the guide sleeve is fixed on the fixed disk and the wire pulling column slides through the guide sleeve, the rotating part is arranged at the end of the wire pulling column close to the pulling assembly and a switching driving part is arranged on the outer wall of the rotating part, and the switching driving part can switch the connection state between the rotating part and the transmission telescopic assembly and the return limiting part by driving the rotating part to rotate, and the wire pulling connecting part is arranged at the end of the wire pulling column away from the pulling assembly and is used to connect the end of the inspection tool wire.

[0009] In an optional scheme: two limiting rods are arranged on the outer wall of the rotating part, and the switching drive part can drive the rotating part to rotate, the return limiting part includes an arc-shaped side plate and a plurality of limiting blocks, the arc-shaped side plate is fixed to the edge of the fixed disk body and the plurality of limiting blocks are equidistantly arranged on the inner arc wall of the arc-shaped side plate, and a limiting groove is formed between two adjacent limiting blocks, the transmission telescopic assembly includes a tensioning cylinder, a tensioning disk and a guide column, the guide column is fixed at the end face center of the fixed disk body and the tensioning cylinder is sleeved on the guide column, the tensioning disk is fixed on the tensioning cylinder, and the other end of the tensioning cylinder is connected to the pulling assembly; the two limiting rods correspond to the tensioning disk and the limiting groove respectively, the limiting rod can be rotated to the side of the tensioning disk away from the fixed disk body and the other limiting rod can be rotated into the corresponding limiting groove.

[0010] In an optional scheme: the wire pulling connection part includes a receiving groove, a stud and a clamping screw sleeve, the receiving groove is opened on the outer wall of the wire pulling column along the axial direction of the wire pulling column, the clamping groove is multiple and the multiple clamping grooves are evenly distributed on the outer wall of the wire pulling column and extend to the inside of the receiving groove, each clamping groove is fixedly connected to a stud and the stud is provided with a wire passing groove aligned with the receiving groove, the depth of the wire passing groove is less than the depth of the receiving groove, the clamping screw sleeve is multiple and the multiple clamping screw sleeves can be connected to the stud by threaded cooperation, the tail of the clamping screw sleeve has a curved nut, when the clamping screw sleeve and the stud are fastened together, the curved nut can seal the clamping groove and the top surface of the curved nut cooperates with the curved surface of the wire pulling column.

[0011] In an optional scheme: a vertical bar frame is provided at the end of the tensioning cylinder away from the fixed disk body, and the pulling assembly includes a rotating frame, a tensioning handle, a tensioning shaft, a movable rotating disk and an elastic adjusting part, both ends of the tensioning shaft are rotatably arranged on the upper end surface of the wire pulling base through a support seat, one end of the rotating frame is fixedly connected to the tensioning shaft and the other end is connected to the tensioning handle, a shifting post penetrating the vertical bar frame is provided in the middle of the rotating frame, and the shifting post can move inside the vertical bar frame; the elastic adjusting part is arranged on the side of the rotating frame and the elastic adjusting part can move relative to the rotating frame along the axis of the tensioning shaft, the end of the elastic adjusting part away from the tensioning shaft extends to the side of the tensioning handle, the movable rotating disk is slidably arranged on the tensioning shaft and the movable rotating disk is connected to the end of the elastic adjusting part close to the tensioning shaft, the movable rotating disk can be engaged with the anti-rotation part and the anti-rotation part limits the one-way rotation of the movable rotating disk.

[0012] In an optional scheme: the elastic adjustment part includes a movable rod, a guide rod and a switching push block, the guide rod is at least one and is fixed on the side wall of the rotating frame, the movable rod is located on the side of the rotating frame and the movable rod and the rotating frame are connected by a reset spring, the guide rod slides through the movable rod, the lower end of the movable rod is fixedly connected to the side of the movable turntable and an upper inclined portion is provided on the top, the upper inclined portion extends away from the end of the movable rod to the side of the tightening handle, the switching push block is slidably arranged at the end of the tightening handle close to the rotating frame, the switching push block extends toward the end of the rotating frame to the side of the upper inclined portion away from the tightening handle and is provided with a pressure roller.

[0013] In an optional scheme: the movable turntable is a circular disk and the outer wall of the movable turntable is provided with a plurality of circumferentially distributed limiting teeth, one side surface of the limiting teeth is an inclined surface and the other side surface is a straight surface, the anti-rotation part includes a fixed disk body and a plurality of elastic limiting parts, the end surface of the fixed disk body facing the movable turntable is provided with a locking groove, the inner wall of the locking groove is provided with a plurality of circumferentially distributed side groove bodies, the plurality of elastic limiting parts are respectively correspondingly arranged inside the plurality of side groove bodies, the elastic limiting part includes a limiting block and a limiting spring, one end of the limiting block is rotatably connected to the side portion of the side groove body and the other end extends to the outside of the limiting block in an initial state, one end of the limiting spring is connected to the inner wall of the side groove body and the other end is connected to the middle portion of the limiting block.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention can simultaneously tighten multiple gauge wires, and by switching the connection state of the wire-pulling column assembly, the transmission telescopic assembly and the return limiter, it can adapt to the different requirements of the pulling length of multiple gauge wires.

[0016] 2. During the rotation of the pulling assembly of the present invention around the support seat, one end of the pulling assembly is connected to the anti-rotation portion, and the anti-rotation portion can limit the rotation of the pulling assembly, thereby ensuring that the pulling assembly will not rotate when adjusting the connection state between the wire drawing column assembly and the transmission telescopic assembly and the return limiting portion, thereby preventing the operator from always maintaining the state of pulling and pressing the pulling assembly.

[0017] 3. The present invention has a simple structure and can meet the requirements of different pulling lengths when multiple inspection tool wires are pulled synchronously, thereby improving the efficiency of pulling the wires and preventing the wires from moving back and becoming loose. The operation is convenient and the practicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the front axle side structure of the wire pulling mechanism in one embodiment of the present invention.

[0019] Figure 2 It is a schematic diagram of the rear axle side structure of the wire pulling mechanism in one embodiment of the present invention.

[0020] Figure 3 It is a schematic diagram of the connection structure between the transmission telescopic component and the pulling component in one embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of a pulling component in one embodiment of the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of a transmission telescopic assembly in one embodiment of the present invention.

[0023] Figure 6 FIG. 1 is a schematic diagram of the structure of the anti-rotation portion in one embodiment of the present invention.

[0024] Figure 7 It is a schematic diagram of the structure of a tension pole assembly in one embodiment of the present invention.

[0025] Figure 8 The figure is a schematic diagram of the structure of a compression screw sleeve in one embodiment of the present invention.

[0026] Reference numerals: cable base 100, fixed disc 200, cable column assembly 300, cable column 310, guide sleeve 320, rotating part 330, switching drive part 340, storage groove 350, pressing groove 360, stud 370, wire groove 371, pressing screw sleeve 380, transmission telescopic assembly 400, tensioning cylinder 410, vertical bar frame 420, tensioning disc 430, guide column 440, pulling assembly 500, rotating frame 510, The shifting post 511, the tightening handle 520, the tightening shaft 530, the movable rod 540, the upper inclined portion 550, the switching push block 560, the pressure roller 561, the guide rod 570, the return spring 580, the movable turntable 590, the limiting tooth body 591, the anti-rotation portion 600, the fixed disk body 610, the engaging groove 620, the side groove body 630, the limiting block 640, the limiting spring 650, the return limiting portion 700, the arc-shaped side plate 710, and the limiting block 720. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments; in the accompanying drawings or descriptions, similar or identical parts use the same reference numerals, and in practical applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the present invention are only used to illustrate the present invention and are not used to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

[0028] In one embodiment, Figure 1-Figure 3As shown, a wire pulling mechanism for automobile inspection tools includes a wire pulling base 100, a fixed disk body 200 and a plurality of wire pulling column assemblies 300, wherein the arc bottom of the fixed disk body 200 is fixed on the wire pulling base 100 and the plurality of wire pulling column assemblies 300 are arranged on the wire pulling base 100 in a circumferentially distributed manner, and the wire pulling column assembly 300 can move axially relative to the fixed disk body 200; it also includes a transmission telescopic assembly 400, a pulling assembly 500, at least one anti-rotation portion 600 and a plurality of return limiting portions 700, one end of the pulling assembly 500 is rotatably mounted on the wire pulling base 100 through a support seat and the anti-rotation portion 600 is fixed on the support seat, the anti-rotation portion 600 is detachably connected to the end of the pulling assembly 500 close to the support seat, and when the pulling assembly 500 is connected to the anti-rotation portion 600, the anti-rotation portion 600 can unidirectionally limit the pulling assembly The part 500 rotates around the connection between it and the support seat; the transmission telescopic assembly 400 is arranged between the fixed disk body 200 and the pulling assembly 500, one end of the transmission telescopic assembly 400 is connected to the center of the end surface of the fixed disk body 200 toward the pulling assembly 500 and the other end is connected to the pulling assembly 500; the transmission telescopic assembly 400 can be telescoped and the side of the transmission telescopic assembly 400 is also detachably connected to the ends of multiple wire post assemblies 300 toward the pulling assembly 500; the multiple return limiting parts 700 are circumferentially distributed on the edge of the fixed disk body 200 and the multiple return limiting parts 700 correspond one by one to the multiple wire post assemblies 300, and the wire post assembly 300 disconnected from the transmission telescopic assembly 400 can be connected to the corresponding return limiting part 700 and the return limiting part 700 limits the axial movement of the wire post assembly 300.

[0029] In the embodiment of the present invention, one end of the pulling wires of multiple inspection tools are respectively connected to the ends of multiple pulling wire column assemblies 300 away from the pulling assembly 500, and the operator holds the top of the pulling assembly 500 and turns the pulling assembly 500 to rotate around the connection between it and the support seat, and the rotating pulling assembly 500 can pull the transmission telescopic assembly 400 and extend it. At this time, the pulling wire column assembly 300 is connected to the transmission telescopic assembly 400 toward the end of the pulling assembly 500, and the pulling wire column assembly 300 is disengaged from the corresponding return limiter 700, so that the transmission telescopic assembly 400 in the extended state can synchronously pull the multiple pulling wire column assemblies 300 to move axially relative to the fixed disk body 200; thereby, the pulling wire column assembly 300 tightens the inspection tool pulling wire and gradually tightens it; when the inspection tool pulling wire is gradually tightened, one of them After the gauge wire is tightened, the operator can disconnect the wire post assembly 300 corresponding to the gauge wire from the transmission telescopic assembly 400 and connect it to the corresponding return limiting portion 700, so that the return limiting portion 700 limits the axial movement of the wire post assembly 300 relative to the fixed disk body 200, thereby making the gauge wire in a tightened state, and so on and so forth, so that multiple gauge wires are tightened; in the process of the pulling assembly 500 rotating around it and the support seat, one end of the pulling assembly 500 is in a connected state with the anti-rotation portion 600, and the anti-rotation portion 600 can limit the rotation of the pulling assembly 500, so that when adjusting the connection state of the wire post assembly 300 with the transmission telescopic assembly 400 and the return limiting portion 700, it is ensured that the pulling assembly 500 will not rotate, thereby preventing the operator from always maintaining the state of pulling and pressing the pulling assembly 500.

[0030] In one embodiment, Figure 1 , Figure 2 , Figure 3 and Figure 7As shown, the wire pulling column assembly 300 includes a wire pulling column 310, a guide sleeve 320, a rotating part 330 and a wire pulling connection part. The guide sleeve 320 is fixed on the fixed disk 200 and the wire pulling column 310 slides through the guide sleeve 320. The rotating part 330 is arranged at the end of the wire pulling column 310 close to the pulling assembly 500, and a switching driving part 340 is arranged on the outer wall of the rotating part 330. The switching driving part 340 can switch the connection state of the rotating part 330 with the transmission telescopic assembly 400 and the return limit part 700 by driving the rotating part 330 to rotate. The wire pulling connection part is arranged at the wire pulling column 310 away from the pulling assembly 50 0 and is used to connect the end of the gauge wire; in an embodiment of the present invention, the switching drive unit 340 switches the connection state of the rotating unit 330 with the transmission telescopic assembly 400 and the return limiting unit 700. When the rotating unit 330 is connected to the transmission telescopic assembly 400, the rotating unit 330 is disengaged from the return limiting unit 700, and the transmission telescopic assembly 400 is extended and drives the rotating unit 330 and the wire pulling column 310 to move; when the rotating unit 330 is connected to the return limiting unit 700, the rotating unit 330 is disengaged from the transmission telescopic assembly 400 and the return limiting unit 700 limits the axial movement of the rotating unit 330 and the wire pulling column 310 relative to the guide sleeve 320.

[0031] In one embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 7As shown, two limiting rods are arranged on the outer wall of the rotating part 330, and the switching driving part 340 can drive the rotating part 330 to rotate, the return limiting part 700 includes an arc-shaped side plate 710 and a plurality of limiting blocks 720, the arc-shaped side plate 710 is fixed to the edge of the fixed disk body 200 and the plurality of limiting blocks 720 are arranged at equal intervals on the inner arc wall of the arc-shaped side plate 710, and a limiting groove is formed between two adjacent limiting blocks 720, the transmission telescopic assembly 400 includes a tensioning cylinder 410, a tensioning disk 430 and a guide column 440, the guide column 440 is fixed at the end face center of the fixed disk body 200 and the tensioning cylinder 410 is sleeved on the guide column 440, the tensioning disk 430 is fixed on the tensioning cylinder 410, and the other end of the tensioning cylinder 410 is connected to the pulling assembly 500; The two limiting rods correspond to the tensioning disk 430 and the limiting groove respectively. The limiting rod can be rotated to the side of the tensioning disk 430 away from the fixed disk body 200 and the other limiting rod can be rotated into the corresponding limiting groove; in the embodiment of the present invention, the switching drive part 340 drives the rotating part 330 to rotate, and the two limiting rods rotate with the rotating part 330. When the limiting rod is on one side of the tensioning disk 430, the other limiting rod is disengaged from the limiting groove. When the pulling assembly 500 drives the tensioning cylinder 410 to move axially relative to the guide column 440, the tensioning disk 430 can push the rotating part 330 and the wire pulling column 310 to move through the limiting rod; when the limiting rod is disengaged from the side of the tensioning disk 430, the other limiting rod is in the limiting groove, so that the limiting groove limits the axial movement of the rotating part 330 and the wire pulling column 310 through the limiting rod.

[0032] In one embodiment, Figure 1-Figure 8As shown, the wire pulling connection portion includes a receiving groove 350, a stud 370 and a compression screw sleeve 380. The receiving groove 350 is arranged on the outer wall of the wire pulling column 310 along the axial direction of the wire pulling column 310. The compression groove 360 ​​is multiple and multiple compression grooves 360 are evenly distributed on the outer wall of the wire pulling column 310 and extend to the inside of the receiving groove 350. A stud 370 is fixedly connected in each compression groove 360, and a wire passing groove 371 is arranged on the stud 370 and is aligned with the receiving groove 350. The depth of the wire passing groove 371 is less than the depth of the receiving groove 350. The compression screw sleeve 380 is multiple and multiple compression screw sleeves 380 can be connected to the stud 370 by threaded cooperation. The compression screw sleeve 380 0 has an arc-surface nut at the tail end. When the compression screw sleeve 380 and the stud 370 are fastened together, the arc-surface nut can seal the compression groove 360 ​​and the top surface of the arc-surface nut cooperates with the arc surface of the wire-pulling column 310. In the embodiment of the present invention, the end of the gauge wire away from the gauge is placed inside the receiving groove 350, and the wire passes through the wire-passing groove 371. The compression screw sleeve 380 and the stud 370 are fastened together and the end of the compression screw sleeve 380 extending into the compression groove 360 ​​can be compressed. Since the depth of the wire-passing groove 371 is less than the depth of the receiving groove 350, the wire is bent at the wire-passing groove 371, thereby improving the connection strength between the wire and the wire-pulling column 310, and avoiding the wire and the wire-pulling column 310 from loosening when the wire is pulled.

[0033] In one embodiment, Figure 1-Figure 4As shown, a vertical bar frame 420 is provided at the end of the tensioning cylinder 410 away from the fixed disk body 200, and the pulling assembly 500 includes a rotating frame 510, a tensioning handle 520, a tensioning shaft 530, a movable turntable 590 and an elastic adjustment part. Both ends of the tensioning shaft 530 are rotatably arranged on the upper end surface of the wire pulling base 100 through a support seat, one end of the rotating frame 510 is fixedly connected to the tensioning shaft 530 and the other end is connected to the tensioning handle 520, and a lever 511 that passes through the vertical bar frame 420 is provided in the middle of the rotating frame 510 and the lever 511 can move inside the vertical bar frame 420; the elastic adjustment part is arranged on the side of the rotating frame 510 and the elastic adjustment part can move relative to the rotating frame 510 along the axis of the tensioning shaft 530, the elastic adjustment part extends away from the end of the tensioning shaft 530 to the side of the tensioning handle 520, and the movable turntable 590 is slidably arranged on the tensioning shaft The movable turntable 590 is connected to the end of the elastic adjustment part close to the tightening shaft 530, and the movable turntable 590 can be engaged with the anti-rotation part 600 and the anti-rotation part 600 limits the one-way rotation of the movable turntable 590; in the embodiment of the present invention, in the initial state, the movable turntable 590 and the anti-rotation part 600 are in the engaged state, and the operator holds the tightening handle 520 and pulls the tightening handle 520, thereby rotating the frame 5 10 drives the tensioning shaft 530 and the movable turntable 590 to rotate around the axis of the tensioning shaft 530; the rotating frame 510 pulls the vertical bar frame 420 through the lever 511 and makes the tensioning cylinder 410 move relative to the guide column 440. Since the movable turntable 590 is engaged with the anti-rotation part 600, the anti-rotation part 600 restricts the rotation of the movable turntable 590 and the tensioning shaft 530, thereby preventing the vertical bar frame 420 and the tensioning cylinder 410 from moving back.

[0034] In one embodiment, Figure 1-Figure 4As shown, the elastic adjustment portion includes a movable rod 540, a guide rod 570 and a switching push block 560, the guide rod 570 is at least one and is fixed to the side wall of the rotating frame 510, the movable rod 540 is located at the side of the rotating frame 510 and the movable rod 540 and the rotating frame 510 are connected by a reset spring 580, the guide rod 570 slides through the movable rod 540, the lower end of the movable rod 540 is fixedly connected to the side of the movable turntable 590 and an upper inclined portion 550 is provided on the top, the upper inclined portion 550 extends away from the end of the movable rod 540 to the side of the tightening handle 520, the switching push block 560 is slidably provided at the end of the tightening handle 520 close to the rotating frame 510, the switching push block 560 extends toward the end of the rotating frame 510 to the side of the upper inclined portion 550 away from the tightening handle 520 and is provided with a pressure roller 561; in the embodiment of the present invention, in the initial state, under the action of the return spring 580, the movable rod 540 is away from the rotating frame 510 and the movable rotating disk 590 is engaged with the anti-rotation part 600, so that the anti-rotation part 600 can limit the rotation of the movable rotating disk 590 and the tensioning shaft 530; when there is no need to tighten the inspection tool wire, the operator presses the switching push block 560 and makes the switching push block 560 move toward the rotating frame 510, the pressure roller 561 contacts the inclined surface of the upper inclined portion 550 and pushes the upper inclined portion 550 and the movable rod 540 toward the rotating frame 510, and then the movable rotating disk 590 moves axially on the tensioning shaft 530 and disengages from the anti-rotation part 600, so that the anti-rotation part 600 no longer limits the rotation of the movable rotating disk 590, and then the entire pulling assembly 500 can rotate to the initial state, and the inspection tool wire is no longer in a tensioned state, which is convenient for disassembly.

[0035] In one embodiment, Figure 1-Figure 6As shown, the movable turntable 590 is a circular disk and the outer wall of the movable turntable 590 is provided with a plurality of circumferentially distributed limiting teeth 591, one side of the limiting teeth 591 is an inclined surface and the other side is a straight surface, the anti-rotation portion 600 includes a fixed disk body 610 and a plurality of elastic limiting portions, the fixed disk body 610 is provided with a snap-fit ​​groove 620 on the end surface facing the movable turntable 590, the inner wall of the snap-fit ​​groove 620 is provided with a plurality of circumferentially distributed side groove bodies 630, and the plurality of elastic limiting portions are respectively correspondingly arranged inside the plurality of side groove bodies 630, the elastic limiting portion includes a limiting block 640 and a limiting spring 650, one end of the limiting block 640 is rotatably connected to the side of the side groove body 630 and the other end extends to the limiting block in the initial state. 640, one end of the limiting spring 650 is connected to the inner wall of the side groove body 630 and the other end is connected to the middle part of the limiting block 640; in the embodiment of the present invention, when the movable turntable 590 is in the engaging groove 620, when the movable turntable 590 rotates with the rotating frame 510, the inclined surface of the limiting tooth body 591 will contact the end surface of the limiting block 640, because the limiting block 640 can rotate around the connection between it and the side wall of the side groove body 630, the limiting block 640 will not limit the rotation of the movable turntable 590; when the movable turntable 590 maintains a stable state, the end of the limiting block 640 away from the side groove body 630 will abut against the straight surface of the limiting tooth body 591, so that the limiting block 640 will limit the rotation of the limiting tooth body 591 and the movable turntable 590.

[0036] The above embodiment provides a kind of automobile inspection tool wire pulling mechanism, wherein one end of the wire pulling wires of multiple inspection tools are respectively connected to the ends of multiple wire pulling column assemblies 300 away from the pulling assembly 500, and the operator holds the top of the pulling assembly 500 and moves the pulling assembly 500 around the connection between it and the support seat, and the rotating pulling assembly 500 can pull the transmission telescopic assembly 400 and extend it. At this time, the wire pulling column assembly 300 is in a connected state with the transmission telescopic assembly 400 toward the end of the pulling assembly 500, and the wire pulling column assembly 300 is in a disengaged state with the corresponding return limiter 700, and then the transmission telescopic assembly 400 in the extended state can synchronously pull the multiple wire pulling column assemblies 300 to move axially relative to the fixed disk body 200; thereby, the wire pulling column assembly 300 tightens the inspection tool wire and gradually tensions it; when the inspection tool wire is gradually tightened In the process of tensioning one of the gauge wires, after one of the gauge wires is tightened, the operator can disconnect the wire post assembly 300 corresponding to the gauge wire from the transmission telescopic assembly 400 and connect it with the corresponding return limiting portion 700, so that the return limiting portion 700 limits the axial movement of the wire post assembly 300 relative to the fixed disk body 200, thereby making the gauge wire in a tensioned state, and so on and so forth, so that multiple gauge wires can be tensioned; in the process of the pulling assembly 500 rotating around it and the support seat, one end of the pulling assembly 500 is in a connected state with the anti-rotation portion 600, and the anti-rotation portion 600 can limit the rotation of the pulling assembly 500, so that when adjusting the connection state of the wire post assembly 300 with the transmission telescopic assembly 400 and the return limiting portion 700, it is ensured that the pulling assembly 500 will not rotate, thereby preventing the operator from always maintaining the state of pulling and pressing the pulling assembly 500.

[0037] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A wire pulling mechanism for automobile inspection tools, comprising a wire pulling base, a fixed disc and a plurality of wire pulling column assemblies, wherein the arc bottom of the fixed disc is fixed on the wire pulling base and a plurality of wire pulling column assemblies are arranged on the wire pulling base in a circumferentially distributed manner, and the wire pulling column assemblies can move axially relative to the fixed disc, characterized in that: It also includes a transmission telescopic assembly, a pulling assembly, at least one anti-rotation portion and a plurality of return limiting portions; One end of the pulling component is rotatably mounted on the wire pulling base through a support seat, and the anti-rotation portion is fixed on the support seat, and the anti-rotation portion is detachably connected to the end of the pulling component close to the support seat; When the pulling component is connected to the anti-rotation part, the anti-rotation part can unidirectionally restrict the pulling component from rotating around the connection between it and the support seat; The transmission telescopic assembly is arranged between the fixed disc and the pulling assembly, one end of the transmission telescopic assembly is connected to the center of the end surface of the fixed disc facing the pulling assembly and the other end is connected to the pulling assembly; The transmission telescopic assembly is telescopic and the side of the transmission telescopic assembly is detachably connected to the ends of the plurality of wire-pulling column assemblies facing the pulling assembly; The plurality of return limiting parts are circumferentially distributed on the edge of the fixed disk body and the plurality of return limiting parts correspond to the plurality of wire rod assemblies one by one. The wire rod assembly disconnected from the transmission telescopic assembly can be connected to the corresponding return limiting part and the return limiting part limits the axial movement of the wire rod assembly. The wire pulling column assembly comprises a wire pulling column body, a guide sleeve, a rotating part and a wire pulling connecting part; The guide sleeve is fixed on the fixed disc body and the wire drawing cylinder slides through the guide sleeve, the rotating part is arranged at the end of the wire drawing cylinder close to the pulling assembly and a switching driving part is arranged on the outer wall of the rotating part; The switching driving part can switch the connection state between the rotating part and the transmission telescopic assembly and the return limit part by driving the rotating part to rotate; The pulling wire connecting part is arranged at the end of the pulling wire column away from the pulling assembly and is used to connect the end of the pulling wire of the inspection tool.

2. The automobile inspection fixture wire pulling mechanism according to claim 1, characterized in that: Two limiting rods are arranged on the outer wall of the rotating part, and the switching driving part can drive the rotating part to rotate; The return limiter includes an arc-shaped side plate and a plurality of limit blocks; The arc-shaped side plate is fixed to the edge of the fixed disk body and a plurality of limiting blocks are arranged at equal intervals on the inner arc wall of the arc-shaped side plate, and a limiting groove is formed between two adjacent limiting blocks; The transmission telescopic assembly comprises a tensioning cylinder, a tensioning disc and a guide column; The guide column is fixed at the center of the end surface of the fixed disc body and the tension cylinder is sleeved on the guide column, the tension disc is fixed on the tension cylinder, and the other end of the tension cylinder is connected to the pulling assembly; The two limiting rods correspond to the tension disk and the limiting groove respectively. The limiting rod can be rotated to a side of the tension disk away from the fixed disk body and the other limiting rod can be rotated into the corresponding limiting groove.

3. The automobile inspection fixture wire pulling mechanism according to claim 2, characterized in that: The pull wire connection portion includes a receiving groove, a stud and a compression screw sleeve; The receiving groove is provided on the outer wall of the wire pulling cylinder along the axial direction of the wire pulling cylinder; There are multiple clamping grooves, and the multiple clamping grooves are evenly distributed on the outer wall of the wire pulling column and extend to the inside of the receiving groove. A stud is fixedly connected in each clamping groove, and a wire passing groove aligned with the receiving groove is formed on the stud, and the depth of the wire passing groove is less than the depth of the receiving groove. There are multiple compression screw sleeves, and the multiple compression screw sleeves can be connected to the stud by threaded fitting, and the tail of the compression screw sleeve has a cambered nut; When the compression nut sleeve is fastened together with the stud, the arc-surface nut can seal the compression groove and the top surface of the arc-surface nut matches with the arc surface of the wire-pulling column.

4. The automobile inspection fixture wire pulling mechanism according to claim 2, characterized in that: The end of the tensioning cylinder away from the fixed disc body is provided with a vertical bar frame; The pulling assembly includes a rotating frame, a tightening handle, a tightening shaft, a movable rotating disk and an elastic adjustment part; Both ends of the tightening shaft are rotatably arranged on the upper end surface of the wire pulling base through a support seat, one end of the rotating frame is fixedly connected to the tightening shaft and the other end is connected to the tightening handle, and a shifting column penetrating the vertical bar frame is arranged in the middle of the rotating frame and the shifting column can move inside the vertical bar frame; The elastic adjustment part is arranged on the side of the rotating frame and can move relative to the rotating frame along the axis of the tensioning shaft, and the elastic adjustment part extends away from the end of the tensioning shaft to the side of the tensioning handle; The movable turntable is slidably arranged on the tensioning shaft and is connected to the end of the elastic adjustment part close to the tensioning shaft. The movable turntable can be engaged with the anti-rotation part and the anti-rotation part limits the one-way rotation of the movable turntable.

5. The automobile inspection fixture wire pulling mechanism according to claim 4, characterized in that: The elastic adjustment part includes a movable rod, a guide rod and a switching push block; There is at least one guide rod and the guide rod is fixed on the side wall of the rotating frame. The movable rod is located on the side of the rotating frame and the movable rod is connected to the rotating frame through a return spring. The guide rod slides through the movable rod. The lower end of the movable rod is fixedly connected to the side of the movable turntable and an upper inclined portion is provided on the top, and the upper inclined portion extends away from the end of the movable rod to the side of the tightening handle; The switching push block is slidably arranged at the end of the tightening handle close to the rotating frame, and the switching push block extends toward the end of the rotating frame to the side of the upper inclined part away from the tightening handle and is provided with a pressure roller.

6. The automobile inspection fixture wire pulling mechanism according to claim 5, characterized in that: The movable turntable is a circular disk and the outer wall of the movable turntable is provided with a plurality of circumferentially distributed limiting teeth, one side of the limiting teeth is an inclined surface and the other side is a straight surface; The anti-rotation part includes a fixed disc and a plurality of elastic limiting parts; A clamping groove is provided on the end surface of the fixed disc body facing the movable rotating disc, and a plurality of circumferentially distributed side groove bodies are provided on the inner wall of the clamping groove, and a plurality of elastic limiting parts are respectively correspondingly arranged inside the plurality of side groove bodies; The elastic limiting part includes a limiting block and a limiting spring, one end of the limiting block is rotatably connected to the side of the side slot body and the other end extends to the outside of the limiting block in an initial state, one end of the limiting spring is connected to the inner wall of the side slot body and the other end is connected to the middle of the limiting block.

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