An adjustment tool for eccentric bolt

Abstract

The present invention relates to the field of automobile technology, and discloses an adjustment tool for an eccentric bolt, comprising an adjustment body, one end face of the adjustment body is provided with a receiving groove for receiving an eccentric gasket of the eccentric bolt, the bottom of the receiving groove is provided with a positioning groove, and the positioning groove is used to receive the head of the eccentric bolt; wherein the positioning groove is eccentrically arranged in the receiving groove; the outer contour of the end face is adapted to the shape of the eccentric bolt installation position of the subframe, so that when the end face falls into the eccentric bolt installation position, the eccentric bolt reaches a preset initial installation angle. The technical solution of the present invention can improve the qualified rate of positioning parameters.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts assembly, in particular to an adjusting tool for an eccentric bolt. Background Art

[0002] There are four positioning parameters in the front wheels of a car, including the camber angle, the kingpin inclination angle, the kingpin caster angle and the wheel toe, which are crucial to the vehicle's handling and tracking performance. In the related technology, the positioning parameters can be adjusted by rotating the eccentric bolt, but due to the randomness of the eccentric bolt assembly, the eccentric bolt deviates from the preset initial installation angle on the subframe, resulting in a low pass rate of the positioning parameters and a large number of rework and fine-tuning situations on the inspection line. Summary of the invention

[0003] The main purpose of the invention is to provide an adjustment tool for an eccentric bolt, aiming at improving the qualified rate of positioning parameters.

[0004] To achieve the above-mentioned purpose, the eccentric bolt adjustment tool proposed in the present invention includes an adjustment body, one end face of the adjustment body is provided with a receiving groove for accommodating the eccentric gasket of the eccentric bolt, the bottom of the receiving groove is provided with a positioning groove, and the positioning groove is used to accommodate the head of the eccentric bolt; wherein the positioning groove is eccentrically arranged in the receiving groove; the outer contour of the end face is adapted to the shape of the eccentric bolt mounting position of the subframe, so that when the end face falls into the eccentric bolt mounting position, the eccentric bolt reaches a preset initial installation angle.

[0005] In an optional manner, the head of the eccentric bolt is a polygonal structure, and the positioning groove is a polygonal groove corresponding to the polygonal structure.

[0006] In an optional manner, the positioning groove is a regular hexagonal groove.

[0007] In an optional manner, the eccentric gasket is an eccentric circular structure, and the notch area of ​​the accommodating groove is greater than or equal to the projected area of ​​the eccentric circular structure.

[0008] In an optional manner, the eccentric bolt installation position is a rectangular groove, and the outer contour of the end face is a rectangular structure corresponding to the rectangular groove.

[0009] In an optional manner, the projection of the adjusting body on the end surface is the rectangular structure.

[0010] In an optional manner, the depth of the positioning groove is less than the thickness of the nut, and the sum of the depths of the positioning groove and the receiving groove is greater than the thickness of the nut and less than or equal to the sum of the thicknesses of the eccentric washer and the nut.

[0011] In an optional manner, a groove wall of the positioning groove and / or a groove bottom of the positioning groove is provided with a magnetic attraction member, and the magnetic attraction member is used to adsorb the eccentric bolt.

[0012] In an optional manner, the adjustment tool further includes a handle, and the handle is fixedly connected to the adjustment body.

[0013] In an optional manner, the handle includes a connecting rod and a grip portion, one end of the connecting rod is connected to the other end surface of the adjustment body facing away from the positioning groove, and the other end of the connecting rod is connected to the grip portion.

[0014] The technical solution of the present invention is to set a receiving groove on the adjusting body, set a positioning groove at the bottom of the receiving groove, and use the positioning groove to position the head of the eccentric bolt, so that the position between the adjusting body and the eccentric bolt is determined, and then the outer contour of the end face of the adjusting body is matched with the mounting position shape of the eccentric bolt corresponding to the sub-frame, so as to determine the position between the adjusting body and the sub-frame, and realize that the eccentric bolt reaches a preset initial installation angle on the sub-frame. In this way, the position of the eccentric bolt on the sub-frame is adjusted by the adjusting body, so that the position of the eccentric bolt on the sub-frame can be relatively uniform, thereby avoiding random assembly of the eccentric bolt, improving the qualified rate of the positioning parameters, and greatly reducing the phenomenon of rework and fine adjustment of the sub-frame.

[0015] The above description is only an overview of the technical solution of the embodiment of the present invention. In order to more clearly understand the technical means of the embodiment of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of the adjusting tool of the present invention;

[0018] Figure 2 for Figure 1 Bottom view of the middle adjustment tooling;

[0019] Figure 3 for Figure 1 Side view of the center adjustment tooling;

[0020] Figure 4It is a structural schematic diagram of an embodiment of the present invention during the process of inserting an eccentric bolt into a sub-frame;

[0021] Figure 5 It is a structural schematic diagram of an embodiment of the present invention in which an eccentric bolt has been inserted into a subframe;

[0022] Figure 6 It is a structural schematic diagram of an embodiment of the cooperation between the adjusting tool and the eccentric bolt, and the cooperation between the adjusting tool and the mounting position of the subframe of the present invention.

[0023] Description of Figure Numbers:

[0024] Label name Label name 10 Adjustment tooling 40 Nuts 20 Subframe 100 Adjustment subject 21 Eccentric bolt installation position 110 Storage tank 21a Limit bar 120 Positioning slot 30 Eccentric bolt 200 Magnetic parts 31 Bolt parts 300 handle 31a Nut 310 link 31b Rod 320 Grip 32 Eccentric spacer

[0025] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

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

[0027] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0028] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0029] For related technologies, please refer to Figure 4The eccentric bolt 30 includes a bolt member 31 and an eccentric washer 32, wherein the bolt member 31 deviates from the center of the eccentric washer 32. Specifically, the bolt member 31 includes a nut 31a and a rod 31b, wherein the nut 31a is disposed on one side of the eccentric washer 32, and the rod 31b passes through the eccentric washer 32 and extends from a side away from the nut 31a. The eccentric washer 32 and the bolt member 31 may be fixedly connected or may be integrally formed.

[0030] To adjust the alignment parameters of the front wheels of the vehicle, please refer to Figures 4 to 5 The vehicle subframe 20 is provided with a connecting hole (not shown) for the rod 31b to pass through. Since the rod 31b of the eccentric bolt 30 deviates from the center of the eccentric gasket 32, the rotation angle of the eccentric bolt 30 on the subframe 20 is different, resulting in different positions of the rod 31b of the eccentric bolt 30 in the connecting hole, which affects the positioning parameters of the vehicle and does not meet the inspection requirements of the vehicle, resulting in a large number of rework and fine-tuning on the inspection line.

[0031] To this end, the present invention provides an adjusting tool 10 for an eccentric bolt 30 .

[0032] In the embodiment of the present invention, please refer to Figure 1 to Figure 2 The adjusting tool 10 of the eccentric bolt 30 comprises an adjusting body 100, one end surface of which is provided with a receiving groove 110 for receiving the eccentric gasket 32 ​​of the eccentric bolt 30, and the bottom of the receiving groove 110 is provided with a positioning groove 120, and the positioning groove 120 is used to receive the head of the eccentric bolt 30 (the head may include the entire nut 31a or only a part of the nut 31a); wherein the positioning groove 120 is eccentrically arranged in the receiving groove 110. Please refer to Figures 4 to 6 The outer contour of the end face is adapted to the shape of the eccentric bolt installation position 21 of the sub-frame 20, so that when the end face falls into the eccentric bolt installation position 21, the eccentric bolt 30 reaches a preset initial installation angle.

[0033] The preset initial installation angle is the initial setting angle after the eccentric bolt 30 is assembled with the sub-frame 20. At this time, the rod portion 31b of the eccentric bolt 30 is in a specific position in the eccentric bolt installation position 21, thereby limiting the wheel camber angle, kingpin inclination angle, kingpin caster angle and wheel toe parameters of the front wheels of the vehicle, thereby eliminating the problem of unqualified parameters of the four wheels caused by the uncertainty of the initial installation angle of the eccentric bolt 30, avoiding the random assembly of the eccentric bolt 30, improving the qualified rate of the positioning parameters, and greatly reducing the repair and fine-tuning phenomenon of the sub-frame 20.

[0034] For details, please refer to Figure 1 to Figure 2One end of the adjusting body 100 is provided with a receiving groove 110, and the receiving groove 110 is used to receive the eccentric gasket 32 ​​of the eccentric bolt 30. It is understandable that the receiving groove 110 has various shapes, which can be regular or irregular shapes such as round, square, hexagonal, etc., and the size of the receiving groove 110 can be larger than the eccentric gasket 32, or can be adapted to the eccentric gasket 32.

[0035] Please continue to refer to Figure 1 to Figure 2 A positioning groove 120 is provided at the bottom of the accommodating groove 110, and the positioning groove 120 is used to accommodate the nut 31a of the eccentric bolt 30 in whole or in part. The eccentric bolt 30 is positioned by deviating the positioning groove 120 from the center of the accommodating groove 110, and the position of the eccentric bolt 30 in the adjusting fixture 10 is adjusted so that the position between the eccentric bolt 30 and the adjusting fixture 10 is determined. At this time, the angle between the eccentric bolt 30 and the adjusting fixture 10 is relatively fixed, and no relative rotation occurs, which is beneficial for the subsequent installation of the eccentric bolt 30 on the sub-frame 20 to reach a preset initial installation angle.

[0036] Specifically, the positioning groove 120 can have various shapes, such as circular, square, hexagonal, and other regular or irregular shapes; it can be the same as or different from the accommodating groove 110. The positioning groove 120 can be matched with the nut 31a, or it can be not matched with the nut 31a of the eccentric bolt 30. When the positioning groove 120 is matched with the nut 31a, the position between the eccentric bolt 30 and the adjusting tool 10 is further ensured, so that the adjusting tool 10 can adjust the position of the eccentric bolt 30.

[0037] It should be noted that the arrangement of the receiving groove 110 and the positioning groove 120 must satisfy at least one of the following conditions: the receiving groove 110 is matched with the eccentric gasket 32, or the receiving groove 110 can clamp the eccentric gasket 32; the positioning groove 120 is matched with the nut 31a of the eccentric bolt 30, or the positioning groove 120 can clamp the nut 31a. Thus, the angle between the eccentric bolt 30 and the adjusting fixture 10 after installation is relatively fixed, and no relative rotation occurs.

[0038] Please refer to Figures 4 to 5The sub-frame 20 has an eccentric bolt installation position 21, and the connection hole is located in the eccentric bolt installation position 21. The eccentric bolt installation position 21 is used to dock with the adjustment tool 10. Specifically, the outer contour of the end surface of the adjustment body 100 provided with the accommodating groove 110 matches the eccentric bolt installation position 21, and the position of the adjustment body 100 is adjusted through the eccentric bolt installation position 21 of the sub-frame 20, so that the position of the adjustment body 100 and the sub-frame 20 is determined. Since the position between the eccentric bolt 30 and the adjustment body 100 is determined, the position between the adjustment body 100 and the sub-frame 20 is also determined, so that the position of the eccentric bolt 30 at the eccentric bolt installation position 21 of the sub-frame 20 is also determined, so that the eccentric bolt 30 reaches the preset initial installation angle on the sub-frame 20, adjusts the positioning parameters of the vehicle, meets the detection requirements of the vehicle, and thus improves the qualified rate of the positioning parameters.

[0039] Please refer to Figures 4 to 6 When the adjusting tool 10 adjusts the position of the eccentric bolt 30, the rod 31b of the eccentric bolt 30 can be first inserted into the connecting hole of the sub-frame 20, and then the positioning groove 120 of the adjusting tool 10 is aligned with the nut 31a of the eccentric bolt 30, and the eccentric gasket 32 ​​of the eccentric bolt 30 is accommodated in the accommodating groove 110, and the nut 31a of the eccentric bolt 30 is accommodated in the positioning groove 120, so as to realize the positioning between the eccentric bolt 30 and the adjusting tool 10; thereafter, the outer contour of the end surface of the adjusting tool 10 provided with the accommodating groove 110 falls into the eccentric bolt installation position 21 of the eccentric bolt 30, and the eccentric bolt installation position 21 adjusts the position of the adjusting tool 10 to adjust the position of the eccentric bolt 30 in the adjusting tool 10 on the sub-frame 20, so that the eccentric bolt 30 reaches a preset initial installation angle on the sub-frame 20, and the position adjustment of the eccentric bolt 30 on the sub-frame 20 is completed.

[0040] In order to improve the certainty of the position between the adjusting tool 10 and the sub-frame 20, in one embodiment, the adjusting tool 10 is provided with a first mark, and the sub-frame 20 is provided with a second mark, and the second mark is used to be opposite to the first mark. When the adjusting tool 10 is located at the eccentric bolt installation position 21 of the sub-frame 20, the first mark is opposite to the second mark, so that the adjusting tool 10 is located at the preset position of the sub-frame 20. At this time, the eccentric bolt 30 in the adjusting tool 10 reaches the preset initial installation angle, thereby further ensuring the uniqueness and certainty of the position between the adjusting tool 10 and the sub-frame 20, and ensuring that the eccentric bolt 30 reaches the preset initial installation angle.

[0041] The first mark can be provided on the adjustment body 100, can be located on the side wall of the adjustment body 100, or can be located on the side of the adjustment body 100 facing away from the receiving groove 110, so that the operator can check and align it, and can quickly align the first mark with the second mark. The second mark can be provided in the eccentric bolt mounting position 21 of the sub-frame 20, or can be provided outside the eccentric bolt mounting position 21. In one embodiment, the second mark is provided in the eccentric bolt mounting position 21 of the sub-frame 20, and can be the bottom wall of the mounting position 21, so that the second mark is opposite to the first mark. It can be understood that the first mark and the second mark have a variety of colors and shapes, and the colors can be yellow, blue, red, etc., and the shapes can be long strips, dots, arrows, etc. The color and shape of the first mark can be the same as or different from those of the second mark.

[0042] The technical solution of the present invention is to set a receiving groove 110 on the adjusting body 100, set a positioning groove 120 at the bottom of the receiving groove 110, and use the receiving groove 110 to position the eccentric gasket 32 ​​of the eccentric bolt 30, so that the position between the adjusting body 100 and the eccentric bolt 30 is determined, and then the outer contour of the end face of the adjusting body 100 is matched with the shape of the eccentric bolt installation position 21 of the sub-frame 20 corresponding to the installation of the eccentric bolt 30, so as to determine the position between the adjusting body 100 and the sub-frame 20, so as to achieve the preset initial installation angle of the eccentric bolt 30 on the sub-frame 20. In this way, the position of the eccentric bolt 30 on the sub-frame 20 is adjusted by the adjusting body 100, so that the position of the eccentric bolt 30 on the sub-frame 20 can be relatively uniform, thereby avoiding the random assembly of the eccentric bolt 30, improving the qualified rate of the positioning parameters, and greatly reducing the phenomenon of rework and fine adjustment of the sub-frame 20.

[0043] The nut 31a of the eccentric bolt 30 has various shapes. Figure 1 to Figure 2 , Figure 4 In one embodiment, the nut 31a of the eccentric bolt 30 is a polygonal structure, and the positioning groove 120 is a polygonal groove corresponding to the polygonal structure.

[0044] Please refer to Figure 1 , Figures 4 to 5 By setting the nut 31a to a polygonal structure and the positioning groove 120 to a polygonal groove that matches the polygonal structure, that is, the nut 31a of the eccentric bolt 30 is a non-cylindrical structure, and the projection of the positioning groove 120 on the sub-frame 20 is non-circular, the positioning groove 120 positions the nut 31a, thereby preventing the nut 31a of the eccentric bolt 30 from rotating in the positioning groove 120, ensuring the uniqueness of the position between the eccentric bolt 30 and the adjusting tool 10, and facilitating the subsequent adjustment of the docking between the tool 10 and the sub-frame 20.

[0045] Since the nut 31a is a polygonal structure and the positioning groove 120 is a polygonal groove, the positioning groove 120 limits the position of the eccentric bolt 30 to prevent the eccentric bolt 30 from moving relative to the adjusting fixture 10 when the adjusting fixture 10 rotates relative to the sub-frame 20, thereby achieving the eccentric bolt 30 and the adjusting fixture 10 to move together. Figure 1 to Figure 2 The slot opening area of ​​the positioning slot 120 is larger than the slot bottom area of ​​the positioning slot 120 , so that the nut 31 a of the eccentric bolt 30 can easily enter the positioning slot 120 .

[0046] There are many polygonal structures of the nut 31a of the eccentric bolt 30. The nut 31a of the standard eccentric bolt 30 is a regular hexagon. Figure 1 to Figure 2 In one embodiment, the positioning groove 120 is a regular hexagonal groove. By setting the positioning groove 120 as a regular hexagonal groove, it is adapted to the regular hexagonal nut 31a, and the eccentric bolt 30 does not need to be customized, thereby reducing the production cost of the automobile. In addition, the adjustment tool 10 can use a standard eccentric bolt 30, thereby improving the versatility of the adjustment tool 10 and facilitating the promotion and use of the adjustment tool 10.

[0047] Similarly, the eccentric washer 32 of the eccentric bolt 30 also has various shapes, please refer to Figure 2 , Figures 4 to 5 In one embodiment, the eccentric gasket 32 ​​is an eccentric circular structure, and the notch area of ​​the accommodating groove 110 is greater than or equal to the projected area of ​​the eccentric circular structure.

[0048] Please refer to Figures 4 to 5 The eccentric gasket 32 ​​is an eccentric circular structure, which is the conventional shape of the eccentric gasket 32 ​​of the standard eccentric bolt 30, so there is no need to reset the shape of the eccentric gasket 32, and there is no need to customize the eccentric bolt 30, which further reduces the production cost of the automobile and improves the versatility of the adjustment tool 10. Please refer to Figure 2 The slot area of ​​the accommodating groove 110 is greater than or equal to the projected area of ​​the eccentric circle structure, so that the eccentric gasket 32 ​​can enter the accommodating groove 110, the eccentric bolt 30 can cooperate with the adjusting tool 10, and the adjusting tool 10 can adjust the position of the eccentric bolt 30.

[0049] Please refer to Figure 1 to Figure 2 In one embodiment, the side wall of the accommodating groove 110 penetrates the side of the adjusting body 100, thereby expanding the size of the accommodating groove 110. On the one hand, it is convenient for the eccentric gasket 32 ​​to enter the accommodating groove 110, and on the other hand, it can reduce the weight of the adjusting body 100, making the adjusting tool 10 lighter and easier for the operator to operate. Please continue to refer to Figure 2In one embodiment, the side wall of the accommodating groove 110 penetrates the side surface of the regulating body 100 in a cross direction.

[0050] There are also various shapes of the eccentric bolt mounting position 21 on the subframe 20. Figure 1 , Figures 4 to 5 In one embodiment, the eccentric bolt installation position 21 is a rectangular groove, and the outer contour of the end face is a rectangular structure corresponding to the rectangular groove.

[0051] Please refer to Figure 1 and Figure 4 By setting the eccentric bolt installation position 21 as a rectangular groove, the outer contour of the end surface of the adjusting body 100 is set as a rectangular structure, and the rectangular groove is adapted to the rectangular structure, so as to adjust the position of the adjusting body 100, so that the position of the adjusting body 100 on the eccentric bolt installation position 21 is determined to be unique, and the eccentric bolt 30 in the adjusting tool 10 reaches the preset initial installation angle. It should be noted that the surface of the sub-frame 20 can be provided with a limiting strip 21a, and the limiting strip 21a encloses the eccentric bolt installation position 21; or the surface of the sub-frame 20 can be recessed to form the eccentric bolt installation position 21.

[0052] The adjusting body 100 may have only the end surface with the receiving groove 110 as a rectangular structure, or the entire adjusting body 100 may have a rectangular structure. Figures 1 to 3 In one embodiment, the projection of the adjusting body 100 on the end face is the rectangular structure, so that the entire adjusting body 100 is a quadrangular prism structure, which is beneficial to the coordination between the adjusting body 100 and the eccentric bolt mounting position 21 and improves the aesthetics of the adjusting tool 10.

[0053] Please refer to Figure 1 to Figure 2 In one embodiment, the depth of the positioning groove 120 is greater than or equal to the thickness of the nut 31a of the eccentric bolt 30, and the depth of the receiving groove 110 is less than or equal to the thickness of the eccentric gasket 32 ​​of the eccentric bolt 30. The position adjustment of the eccentric bolt 30 by the adjusting fixture 10 is achieved by positioning the nut 31a by the positioning groove 120 and limiting the eccentric gasket 32 ​​by the receiving groove 110. The depth of the receiving groove 110 can be less than or equal to the thickness of the eccentric gasket 32 ​​of the eccentric bolt 30, so that when the eccentric bolt 30 is matched with the adjusting fixture 10, the eccentric gasket 32 ​​is flush with the end surface provided with the receiving groove 110, or protrudes from the end surface provided with the receiving groove 110.

[0054] Different from the above embodiment, in one embodiment, the depth of the positioning groove 120 is less than the thickness of the nut 31a, and the sum of the depths of the positioning groove 120 and the receiving groove 110 is greater than the thickness of the nut 31a and less than or equal to the sum of the thicknesses of the eccentric gasket 32 ​​and the nut 31a. When the depth of the positioning groove 120 is less than the thickness of the nut 31a, part of the nut 31a can be located in the receiving groove 110; because the sum of the depths of the positioning groove 120 and the receiving groove 110 is greater than the thickness of the nut 31a and less than or equal to the sum of the thicknesses of the eccentric gasket 32 ​​and the nut 31a, the eccentric gasket 32 ​​is flush with the end surface provided with the receiving groove 110, or protrudes from the end surface provided with the receiving groove 110.

[0055] Please refer to Figure 1 and Figure 5 In one embodiment, a magnetic member 200 is provided on the groove wall of the positioning groove 120 and / or the groove bottom of the positioning groove 120, and the magnetic member 200 is used to absorb the eccentric bolt 30. By providing the magnetic member 200 in the positioning groove 120, the nut 31a of the eccentric bolt 30 in the positioning groove 120 is absorbed to prevent the eccentric bolt 30 from falling off the adjustment tool 10. In this way, on the one hand, the eccentric bolt 30 is further positioned, and the eccentric bolt 30 will not be displaced relative to the adjustment tool 10; on the other hand, the other hand of the operator is freed, and the nut 40 can be used to cooperate with the eccentric bolt 30 to tighten the nut 40 on the other side, which not only ensures the accuracy of the initial installation position of the eccentric bolt 30, but also improves work efficiency.

[0056] The positioning groove 120 may be provided with a receiving groove for receiving the magnetic member 200. By installing the magnetic member 200 in the receiving groove, the magnetic member 200 is prevented from protruding from the inner wall surface of the positioning groove 120, thereby protecting the magnetic member 200 and preventing the magnetic member 200 from colliding with the eccentric bolt 30 and causing the magnetic member 200 to fall off. The magnetic member 200 may be installed in the receiving groove by bonding or clamping. Figure 1 , Figure 3 and Figure 6 The magnetic member 200 arranged on the wall of the positioning groove 120 can pass through the adjusting body 100 and partially protrude from the outer wall of the adjusting body 100. Therefore, when the adjusting body 100 is matched with the eccentric bolt mounting position 21, the magnetic member 200 protruding from the outer wall of the adjusting body 100 can abut against the eccentric bolt mounting position 21, thereby limiting the movement of the adjusting body 100, thereby limiting the depth of the adjusting body 100 extending into the eccentric bolt mounting position 21.

[0057] In order to facilitate the operator to use the adjustment tool 10, please refer to Figure 1 and Figure 3In one embodiment, the adjusting tool 10 further includes a handle 300, and the handle 300 is fixedly connected to the adjusting body 100. By installing the handle 300 on the adjusting body 100, the operator can hold the handle 300 and adjust the angle of the adjusting body 100 so that the adjusting body 100 can be matched with the eccentric bolt installation position 21.

[0058] The handle 300 can be installed on the outer wall of the adjusting body 100, or on the end away from the receiving groove 110. Figure 1 and Figure 3 In one embodiment, the handle 300 is installed at one end of the adjusting body 100 facing away from the receiving groove 110, so as to facilitate the operation of the operator.

[0059] The handle 300 has various shapes. Figure 1 and Figure 3 In one embodiment, the handle 300 includes a connecting rod 310 and a gripping portion 320 , one end of the connecting rod 310 is connected to the other end surface of the adjusting body 100 facing away from the positioning groove 120 , and the other end of the connecting rod 310 is connected to the gripping portion 320 .

[0060] Please refer to Figure 1 One end of the connecting rod 310 of the handle 300 is connected to the adjusting body 100, and the other end is provided with a gripping part 320. The gripping part 320 can be provided in a strip shape and penetrated on the connecting rod 310, and the gripping part 320 can extend along the radial direction of the connecting rod 310. The gripping part 320 is used for the operator to grasp the hand, and the position of the adjusting body 100 is adjusted by rotating the gripping part 320, so that the adjusting body 100 extends into the eccentric bolt installation position 21, so that the adjusting body 100 and the eccentric bolt installation position 21 are matched, so that the position between the adjusting body 100 and the sub-frame 20 is determined.

[0061] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. An adjustment tool for an eccentric bolt, characterized in that: It comprises an adjusting body, one end surface of which is provided with a receiving groove for receiving an eccentric gasket of the eccentric bolt, and the bottom of the receiving groove is provided with a positioning groove, and the positioning groove is used to receive the head of the eccentric bolt; wherein the positioning groove is eccentrically arranged in the receiving groove; The outer contour of the end face is adapted to the shape of the eccentric bolt installation position of the subframe, so that when the end face falls into the eccentric bolt installation position, the eccentric bolt reaches a preset initial installation angle; The head of the eccentric bolt is a polygonal structure, and the positioning groove is a polygonal groove corresponding to the polygonal structure; A magnetic attraction member is provided on the groove wall of the positioning groove and / or the groove bottom of the positioning groove, and the magnetic attraction member is used to attract the eccentric bolt.

2. The eccentric bolt adjustment tool as claimed in claim 1, characterized in that: The positioning groove is a regular hexagonal groove.

3. The eccentric bolt adjustment tool as claimed in claim 1, characterized in that: The eccentric gasket is an eccentric circular structure, and the notch area of ​​the accommodating groove is greater than or equal to the projected area of ​​the eccentric circular structure.

4. The eccentric bolt adjustment tool as claimed in claim 1, characterized in that: The eccentric bolt installation position is a rectangular groove, and the outer contour of the end surface is a rectangular structure corresponding to the rectangular groove.

5. The eccentric bolt adjustment tool as claimed in claim 4, characterized in that: The projection of the adjusting body on the end surface is the rectangular structure.

6. The eccentric bolt adjustment tool as claimed in claim 1, characterized in that: The depth of the positioning groove is greater than or equal to the thickness of the nut of the eccentric bolt, and the depth of the receiving groove is less than or equal to the thickness of the eccentric gasket of the eccentric bolt; or, The depth of the positioning groove is less than the thickness of the nut, and the sum of the depths of the positioning groove and the receiving groove is greater than the thickness of the nut and less than or equal to the sum of the thicknesses of the eccentric gasket and the nut.

7. The eccentric bolt adjustment tool according to any one of claims 1 to 6, characterized in that: The adjusting tool also includes a handle, and the handle is fixedly connected to the adjusting body.

8. The eccentric bolt adjustment tool as claimed in claim 7, characterized in that: The handle comprises a connecting rod and a gripping portion, one end of the connecting rod is connected to the other end surface of the adjusting body facing away from the positioning groove, and the other end of the connecting rod is connected to the gripping portion.

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