Shock absorber clamping and positioning tool and clamping method

Abstract

The invention belongs to the technical field of automobile shock absorbers, and particularly relates to a shock absorber clamping and positioning tool and a clamping method. The positioning tool comprises a base, a positioning boss, an adapter block, a limiting clamping block, a supporting piece and a positioning plug pin. The limiting clamping block and the supporting piece are located on the two sides of the positioning boss in the horizontal direction. An insertion hole with an upward opening and a first positioning insertion hole which is vertical and communicated with the insertion hole are formed in the adapter block; an inserting part and an axial limiting part are arranged on the limiting clamping block, the inserting part is inserted into the inserting hole, and the lower end face of the axial limiting part is attached to the upper surface of the adapter block; a second positioning insertion hole is formed in the insertion part, and the positioning bolt is inserted into the first positioning insertion hole and the second positioning insertion hole; the support piece and the adapter block are radially adjustable relative to the positioning boss; and the positioning boss is detachably mounted on the base. The shock absorbers of different specifications are clamped and positioned by replacing the positioning boss and the limiting clamping block and adjusting the horizontal positions of the supporting piece and the switching block, the wire replacing efficiency is improved, and manpower and material cost is saved.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile shock absorbers, and in particular relates to a shock absorber clamping and positioning tool and a clamping method. Background Art

[0002] The automobile shock absorber is an important component of the automobile suspension, and its main function is to buffer vibration during the driving of the automobile, and improve the stability and safety of the automobile driving. The bottom of the shock absorber 91 has an upward concave circular groove, and the lower part of the outer cylinder of the shock absorber 91 is welded with a shock absorber bracket. The shock absorber bracket includes a sleeve 92 welded on the outer cylinder of the shock absorber and a U-shaped piece 93 welded on the outside of the sleeve 92, and the U-shaped slot on the U-shaped piece 93 is opened outward. The upper end of the shock absorber 91 is provided with an external connecting sleeve, and the external connecting sleeve is provided with an axial mounting through hole arranged in coordination with the vehicle suspension. The lower end of the shock absorber is connected to the wheel shaft through the U-shaped piece 93, and the upper end of the shock absorber is installed on the vehicle suspension through the external connecting sleeve. Therefore, the assembly operation of the shock absorber needs to ensure the assembly accuracy of the external connecting sleeve, the shock absorber 91 and the U-shaped piece 93 on the shock absorber bracket, so as to ensure that the shock absorber is smoothly and efficiently connected to the wheel shaft and the vehicle body during the vehicle assembly process.

[0003] After the shock absorber bracket is welded on the shock absorber 91, the shock absorber assembly process is carried out. During the assembly process, the shock absorber 91 is clamped on the positioning fixture of the assembly line, and the positioning fixture drives the shock absorber assembly structure to complete the assembly of springs, external connecting sleeves and other structures at various workstations on the assembly line. The existing positioning fixture includes a base plate, and a positioning member is fixed on the top of the base plate to radially position the shock absorber body 91 and circumferentially position the U-shaped member 93. Although the positioning fixture can clamp and position the shock absorber on it, due to the large number of shock absorber specifications, the shock absorber body 91, the ferrule 92, and the U-shaped member 93 of the shock absorber assembly structure of different specifications are not the same, and the position and structure of the positioning member on the existing positioning fixture are not adjustable, which not only requires the provision of multiple positioning fixtures of different specifications, which is costly, but also requires the replacement of the entire positioning fixture when changing the shock absorber type, which is time-consuming and labor-intensive, reduces the line change efficiency, and cannot achieve flexible switching of the production line. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a clamping and positioning tool and a clamping method suitable for shock absorbers of different specifications, so as to save costs and improve the switching efficiency of the shock absorber assembly line.

[0005] The technical solution adopted by the present invention to solve the technical problem is: a shock absorber clamping and positioning tool, comprising a base, the top surface of which is fastened with a positioning boss, a limit block and a support member, the limit block and the support member are located on both sides of the positioning boss in the horizontal direction; the top surface of the base is a limit plane;

[0006] It also includes an adapter block fastened to the top surface of the base and a positioning pin installed on the adapter block; the adapter block is provided with an upwardly opening plug hole and a first positioning plug hole perpendicular to the plug hole, the first positioning plug hole and the plug hole are connected; the limit card block is provided with a downwardly protruding plug portion and an axial limiting portion protruding from the side wall of the plug portion, the plug portion is plugged into the plug hole, and the lower end surface of the axial limiting portion is in contact with the upper surface of the adapter block; the plug portion is provided with a second positioning plug hole; the positioning pin is plugged into the first positioning plug hole and the second positioning plug hole;

[0007] The support member and the adapter block are adjustable in radial direction of the positioning boss; and the positioning boss is detachably mounted on the base.

[0008] Furthermore, the positioning boss and the base are fastened and connected by a first fastening bolt, and the center line of the first fastening bolt is arranged in the up-down direction;

[0009] The side wall at the upper part of the positioning boss includes two clamping planes parallel to each other.

[0010] Furthermore, a positioning groove is provided on the top surface of the base, and the lower part of the positioning boss is inserted into the positioning groove; and the side wall of the positioning groove is in contact with the side wall of the positioning boss.

[0011] Furthermore, the plug-in portion is a prism structure, and the plug-in hole and the plug-in portion are matched in shape and size.

[0012] Furthermore, the limiting block protrudes from the outer side wall of the plug-in portion, and the bottom surface of the limiting block is the axial limiting portion, so the structural plate is simple and convenient to process.

[0013] Further, the positioning pin comprises a first pin segment and a second pin segment that are axially adjacent and coaxially arranged, and also comprises an axial limiting portion protruding from an outer side wall of the first pin segment and a second protruding portion protruding from a side wall of the second pin segment;

[0014] The first pin segment is inserted into the second positioning insertion hole, the second pin segment, the axial limiting portion and the second protruding portion are all located in the first positioning insertion hole, and one end of the second pin segment away from the first pin segment extends out of the first positioning insertion hole; the axial limiting portion abuts against the outer wall of the plug-in portion;

[0015] The opening end of the first positioning socket is provided with a first protrusion protruding radially inwardly; a compression elastic member is provided in the first positioning socket, one end of the compression elastic member abuts against the second protrusion, and the other end of the compression elastic member abuts against the first protrusion.

[0016] Furthermore, a ring plate is coaxially arranged on the first pin segment and protrudes from the side wall of the first pin segment and the side wall of the second pin segment, and the outer contour of the cross section of the ring plate is adapted to the shape and size of the first positioning hole; the ring plate is the second protrusion, and the end surface of the ring plate away from the second pin segment is the axial limiting portion.

[0017] Furthermore, the compression elastic member is a compression elastic sleeve sleeved on the second pin segment.

[0018] Furthermore, a pull ring is provided on the end of the second pin section extending out of the first positioning socket.

[0019] A method for clamping and positioning a shock absorber using any of the above-mentioned shock absorber clamping and positioning tools comprises the following steps:

[0020] S1. Position and install the base of the shock absorber clamping and positioning tool on the prefabrication station of the conveyor line;

[0021] S2, select the positioning boss that matches the specification of the shock absorber and assemble it on the base, select the limit block that matches the U-shaped slot on the U-shaped piece and assemble it on the adapter block;

[0022] Adjust the positions of the support member and the adapter block on the base so that the distance between the support member and the center line of the positioning boss is greater than the radius of the outer wall of the ferrule, and the distance between the limit block and the center line of the positioning boss is greater than the distance between the bottom wall of the U-shaped slot on the U-shaped member and the center line of the shock absorber;

[0023] S3, aligning the circular groove on the bottom surface of the pre-clamped shock absorber with the positioning boss so that the positioning boss is inserted into the circular groove on the bottom surface of the shock absorber, aligning the U-shaped slot on the U-shaped piece with the limiting block so that the limiting block is inserted into the U-shaped slot on the U-shaped piece;

[0024] S4. Adjust the position of the adapter block on the base so that the limit block abuts against the bottom wall of the U-shaped slot on the U-shaped member, and adjust the position of the support member on the base so that the support member abuts against the outer wall of the sleeve to position the entire shock absorber assembly structure on the shock absorber clamping and positioning tooling.

[0025] Compared with the prior art, the beneficial effects of the present invention are: providing a shock absorber clamping and positioning tool and a clamping method, which can clamp and position a shock absorber combination structure with shock absorbers of different specifications by replacing positioning bosses, limit card blocks of different structures, adjusting the horizontal positions of support members and adapter blocks, without replacing the entire positioning tool, improving the line change efficiency, saving manpower, and improving the flexibility of the entire assembly line; there is no need to prepare multiple positioning tools of different specifications, saving costs. By setting the limit card block and the plug-in hole to be plug-in, by setting an axial limit part on the limit card block to limit the limit card block in the upper and lower directions so that the second positioning plug-in hole is quickly aligned and connected with the first positioning plug-in hole, and using a positioning pin to quickly position and install the plug-in part and the limit card block on the adapter block, the disassembly and assembly efficiency of the limit card block is improved, and the switching efficiency of the assembly line is further improved. By arranging a second protrusion on the positioning pin, arranging a first protrusion at the open end of the first positioning socket, and arranging a compression elastic member between the two, the compression elastic member is always pressed inwardly against the second protrusion when the positioning pin is released and pulled outward, thereby preventing the positioning pin from falling out; after the positioning pin is released, the compression elastic member automatically rebounds and pushes the positioning pin to quickly reset the position to position the limit block, thereby saving manpower and further improving the efficiency of disassembly and assembly of the limit block. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is an axial cross-sectional structural schematic diagram and a top structural schematic diagram of a shock absorber assembly structure in the background technology;

[0027] Figure 2 It is a top view schematic diagram of the shock absorber clamping and positioning tooling;

[0028] Figure 3 yes Figure 2 A schematic cross-sectional structure diagram of ;

[0029] Figure 4 yes Figure 3 The enlarged structural diagram of the middle A part;

[0030] Figure 5 A schematic diagram of the assembly top view of the shock absorber clamping and positioning fixture and the shock absorber combined structure;

[0031] Figure 6 A schematic diagram of the assembly cross-sectional structure of the shock absorber clamping and positioning tooling and the shock absorber combined structure;

[0032] Figure 7 yes Figure 2 A schematic diagram of the structure of the middle base from a top view;

[0033] Figure 8 yes Figure 2 The structural diagram of the transfer block;

[0034] Fig. 9 yes Figure 2A schematic diagram of the main structure of the middle limit card block;

[0035] Figure markings: 1-base; 11-positioning groove; 12-second strip hole; 15-third fastening bolt; 2-positioning boss; 21-first fastening bolt; 3-limiting block; 31-second positioning socket; 33-plug-in portion; 34-axial limiting portion; 4-support member; 41-support surface; 42-first strip hole; 43-second fastening bolt; 5-adapter block; 51-plug-in hole; 52-first positioning socket; 53-first protrusion; 6-positioning pin; 61-first pin section; 62-second pin section; 63-axial limiting portion; 64-second protrusion; 65-compression elastic member; 7-pull ring; 91-shock absorber; 92-ferrule; 93-U-shaped member. DETAILED DESCRIPTION

[0036] The present invention is further described below in conjunction with the accompanying drawings and embodiments. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0037] As attached Figure 1-9 As shown, a clamping and positioning tool for a shock absorber comprises a base 1, the top surface of which is fastened with a positioning boss 2, a limit block 3 and a support member 4, the limit block 3 and the support member 4 are located on both sides of the positioning boss 2 in the horizontal direction; the top surface of the base 1 is a limit plane; it also comprises an adapter block 5 fastened to the top surface of the base 1 and a positioning pin 6 installed on the adapter block 5; the adapter block 5 is provided with a plug hole 51 with an opening facing upward and a first positioning plug hole 52 perpendicular to the plug hole 51, the first positioning plug hole 52 and the plug hole 51 are connected to each other. connected; the limit block 3 is provided with a downwardly protruding plug-in portion 33 and an axial limiting portion 34 protruding from the side wall of the plug-in portion 33, the plug-in portion 33 is plugged into the plug-in hole 51, and the lower end surface of the axial limiting portion 34 is in contact with the upper surface of the adapter block 5; the plug-in portion 33 is provided with a second positioning hole 31; the positioning pin 6 is plugged into the first positioning hole 52 and the second positioning hole 31; the support member 4 and the adapter block 5 are adjustable in the radial direction of the positioning boss 2; the positioning boss 2 is detachably mounted on the base 1.

[0038] The plug-in portion 33 cooperates with the plug-in hole 51 to position the limit block 3 in the horizontal direction; the positioning pin 6 is inserted into the first positioning hole 52 to radially position the positioning pin 6, and the positioning pin 6 is inserted into the second positioning hole 31 and the two cooperate to position the plug-in portion 33 and the limit block 3 in the vertical direction, thereby positioning and installing the limit block 3 on the adapter block 5. The axial positioning of the plug-in portion 33 and the limit block 3 can be released by pulling the positioning pin 6 out of the second positioning hole 31, and then the limit block 3 can be quickly assembled and disassembled by plugging and pulling out the limit block 3. During the process of inserting and assembling the limit block 3, the axial limiting portion 34 fits with the upper surface of the adapter block 5 to limit it axially, ensuring that the second positioning hole 31 on the plug-in portion 33 is coaxially aligned with the positioning pin 6 in the first positioning hole 52, so as to facilitate the accurate insertion of the positioning pin 6 into the second positioning hole 31 to quickly position the limit block.

[0039] The positioning boss 2 and the circular groove on the bottom surface of the shock absorber 91 are matched in shape and size, and the limiting block 3 and the U-shaped groove on the U-shaped member 93 are matched in shape and size. When the shock absorber assembly structure is clamped on the positioning fixture of the present invention, the top surface of the base 1 supports the shock absorber assembly structure to limit the axial direction of the shock absorber 91; the positioning boss 2 is inserted into the circular groove on the bottom surface of the shock absorber 91 to position the shock absorber 91 in the horizontal radial direction; the limiting block 3 is clamped in the U-shaped groove of the U-shaped part 93 and fits with the two side walls of the U-shaped groove to position the U-shaped part 93 in a direction perpendicular to the two side walls of the U-shaped groove to prevent the U-shaped part 93 from driving the entire shock absorber assembly structure to rotate around the positioning boss 2; the limiting block 3 supports the bottom wall of the U-shaped groove on the U-shaped part 93, and the support part 4 supports the outer wall of the sleeve 92. The limiting block 3 cooperates with the support part 4 to support and position the entire shock absorber assembly structure, ensuring that the axis of the shock absorber 91 is arranged in the up and down direction, thereby improving the clamping reliability.

[0040] During the assembly process of the shock absorber 91, the base 1 installs the entire positioning tool and the shock absorber 91 on the conveyor line and moves synchronously with the conveyor line. The positioning tool of the present invention can adapt the circular groove on the bottom surface of the shock absorber 91 of different specifications by replacing the positioning boss 2 with different structures to position the shock absorber 91 in the horizontal radial direction; by replacing the limiting block 3 with different structures to adapt the U-shaped piece 93 with different structures, the U-shaped piece 93 and the entire shock absorber combination structure are circumferentially positioned relative to the positioning boss 2; by adjusting the radial position of the support member 4 relative to the positioning boss 2 and the radial position of the adapter block 5 relative to the positioning boss 2, the shock absorber 91 with different outer diameters is adapted to support and position it. That is, the positioning tool of the present invention can clamp and position the shock absorber combination structure with shock absorbers 91 of different specifications by replacing the positioning boss 2, the limiting block 3, and adjusting the horizontal position of the support member 4 and the adapter block 5 with different structures. There is no need to replace the entire positioning tool, which improves the line change efficiency, saves manpower, and improves the flexibility of the entire assembly line; there is no need to prepare multiple positioning tools of different specifications, which saves costs. In addition, the limit block 3 is positioned in the horizontal direction by providing the plug-in hole 51, and the limit block 3 is limited in the upper and lower directions by providing the axial limit portion 34 on the limit block 3, so that the second positioning hole 31 and the first positioning hole 52 are quickly aligned and connected, and the positioning pin 6 is used to quickly position the plug-in portion 33 and the limit block 3 and install them on the adapter block 5, thereby improving the disassembly and assembly efficiency of the limit block 3.

[0041] The base 1 is used to support the shock absorber assembly structure to position and install the entire clamping and positioning tooling of the present invention and the shock absorber assembly structure thereon on the conveyor line. The base 1 can be a frame structure welded by steel materials such as channel steel and steel pipe, but this structure is not easy to ensure the flatness of the base 1 and has a complex structure. In order to ensure the positioning accuracy of the shock absorber 91, the base 1 generally adopts a steel plate structure, which has a simple structure and is convenient for processing and manufacturing. The positioning boss 2 is used to horizontally and radially position the shock absorber 91 on the base 1. The positioning boss 2 and the base 1 can be plugged or threaded with each other, or they can be connected by adapters such as latches and bolts. Specifically, the positioning boss 2 and the base 1 are fastened and connected by a first fastening bolt 21, and the center line of the first fastening bolt 21 is arranged in the up and down direction, which is convenient for the installation and removal of the positioning boss 2. The cross section of the positioning boss 2 is generally a cylindrical structure that matches the shape and size of the circular groove on the bottom surface of the shock absorber 91. The positioning boss 2 of the cylindrical structure is easy to slide during the clamping and twisting process, which is inconvenient to install and remove. Preferably, the side wall on the upper portion of the positioning boss 2 includes two mutually parallel clamping planes. When assembling and disassembling the positioning boss 2, the two planes on the clamping side wall are used to twist the positioning boss 2, which is easy and labor-saving, thereby improving assembly and disassembly efficiency.

[0042] During the assembly process of the shock absorber 91, the positioning boss 2 is inserted into the circular groove on the bottom surface of the shock absorber 91. After the shock absorber 91 is subjected to force, a certain pressure will be applied to the side wall of the positioning boss 2, which may easily cause the first fastening bolt 21 to bend and deform, affecting the positioning accuracy. Preferably, a positioning groove 11 is provided on the top surface of the base 1, and the lower part of the positioning boss 2 is inserted into the positioning groove 11; the side wall of the positioning groove 11 fits with the side wall of the positioning boss 2. The side wall of the positioning groove 11 not only positions the positioning boss 2 in the horizontal direction, but also supports the positioning boss 2 when the side wall of the positioning boss 2 is subjected to pressure, shares the pressure on the first fastening bolt 21, avoids deformation of the first fastening bolt 21, ensures the installation accuracy and reliability of the positioning boss 2, and thus improves the clamping and positioning accuracy of the shock absorber 91.

[0043] The limiting block 3 is used to position the U-shaped member 93 in the circumferential direction of the positioning boss 2. When in use, the limiting block 3 fits with the bottom wall and side wall of the U-shaped slot on the U-shaped member 93. The limiting block 3 can be a columnar structure, a cylindrical structure or a frame structure, etc. The plug-in portion 33 can be a columnar structure, a platform structure or a conical structure, etc., and its cross-section can be a circular, elliptical or rectangular structure. Preferably, the plug-in portion 33 is a prismatic structure, and the shape and size of the plug-in hole 51 and the plug-in portion 33 are adapted. That is, the side wall of the plug-in hole 51 fits with the side wall of the plug-in portion 33 to horizontally position the plug-in portion 33 and the side wall of the limiting block 3, ensuring that the positioning surface on the side wall of the limiting block 3 fits with the inner wall of the U-shaped member 93 to position the U-shaped member 93 circumferentially, and quickly position the limiting surface on the limiting block 3.

[0044] The axial limit portion 34 is used to ensure the axial installation accuracy of the limit block 3 and quickly align the second positioning socket 31 with the first positioning socket 52. The axial limit portion 34 can be a single protrusion structure or a plurality of protrusion structures arranged circumferentially along the plug-in portion 33; the axial limit portion 34 can be set on the plug-in portion 33 or the limit block 3. Preferably, the limit block 3 protrudes from the outer side wall of the plug-in portion 33, and the bottom surface of the limit block 3 is the axial limit portion 34, and the structure plate is simple and convenient for processing.

[0045] The support member 4 is used to support the side wall of the shock absorber assembly structure, and the adapter block 5 is used to connect the limit block 3 to the base 1. The support member 4 and the adapter block 5 can be of any shape, such as a rectangular parallelepiped, a cylinder, a sphere and other structures. Both the support member 4 and the adapter block 5 can slide and cooperate with the base plate 1 along the horizontal depth direction of the groove on the U-shaped block 3, and are fixed in place by positioning members such as latches and bolt blocks. Specifically, the side wall of the support member 4 close to the limit block 3 is a support surface 41; the support member 4 is provided with a first strip hole 42 that passes through in the up and down direction, and the length direction of the first strip hole 42 is perpendicular to the support surface 41; the strip hole 42 is provided with a second fastening bolt 43 that is threadedly connected to the base 1, and the support member 4 is fastened to the base 1 by the second fastening bolt 43. Because the limit block 3 is installed on the adapter block 5, it is inconvenient to set a strip hole on the adapter block 5. Therefore, the base 1 is provided with a second strip hole 12 that passes through in the up and down direction, and the length direction of the second strip hole 12 is perpendicular to the support surface 41; the second strip hole 12 is provided with a third fastening bolt 15 threadedly connected to the adapter block 5, and the adapter block 5 is fastened to the base 1 by the third fastening bolt 15.

[0046] The adapter block 5 is used to connect the limit block 3 to the base 1. The horizontal position of the limit block 3 is adjusted by adjusting the position of the adapter block 5 on the base 1. The first positioning socket 52 is used to position the positioning pin 6. The second positioning socket 31 cooperates with the positioning pin 6 to realize the positioning of the limit block 3 in the up and down directions. The aperture of the first positioning socket 52 is greater than or equal to the aperture of the second positioning socket 31. The positioning pin 6 can be an optical axis structure or a stepped axis structure. When the positioning pin 6 is pulled out of the second positioning socket 31, it is easy to fall off and be lost through the first positioning socket 52. Preferably, the positioning pin 6 includes a first pin segment 61 and a second pin segment 62 which are axially adjacent and coaxially arranged, and also includes an axial limiting portion 63 protruding from the outer side wall of the first pin segment 61 and a second protruding portion 64 protruding from the side wall of the second pin segment 62; the first pin segment 61 is inserted into the second positioning socket 31, the second pin segment 62, the axial limiting portion 63 and the second protruding portion 64 are all located in the first positioning socket 52, and one end of the second pin segment 62 away from the first pin segment 61 extends out of the first positioning socket 52; the axial limiting portion 63 abuts against the outer wall of the plug-in portion 33; the opening end of the first positioning socket 52 is provided with a first protruding portion 53 which protrudes radially inwardly; a compression elastic member 65 is provided in the first positioning socket 52, one end of the compression elastic member 65 abuts against the second protruding portion 64, and the other end of the compression elastic member 65 abuts against the first protruding portion 53. When replacing the limit block 3, pull the second pin section 62 outward horizontally to make the first pin section 61 disengage from the second positioning socket 31 to release and maintain the positioning of the limit block 3. After the original limit block 3 is pulled out from the plug hole 51, insert the new limit block 3 into the plug hole 51 and make the lower end surface of the limit block 3 abut against the upper surface of the adapter block 5. Finally, release the second pin section 62, the compression elastic member 65 automatically rebounds and pushes the second protrusion 64 and the entire positioning plug 6 to quickly reset. The first pin section 61 is reset and inserted into the second positioning socket 31 to position the limit block 3, saving manpower and further improving the disassembly and assembly efficiency of the limit block 3. At the same time, the compression elastic member 65 is always in a compressed state and presses the second protrusion 64 inward to prevent the positioning plug 6 from falling off. A limit boss can also be set on the wall of the first positioning socket 52, and the axial limit portion 63 abuts against the limit step to realize the axial positioning of the positioning plug 6.

[0047] As a further preferred embodiment, a ring plate protruding from the side wall of the first pin segment 61 and the side wall of the second pin segment 62 is coaxially arranged on the first pin segment 61, and the outer contour of the cross section of the ring plate is adapted to the shape and size of the first positioning plug hole 52; the ring plate is the second protrusion 64, and the end surface of the ring plate away from the second pin segment 62 is the axial limit portion 63. In order to simplify the structure of the positioning plug 6 and save production costs. The outer contour of the cross section of the ring plate is adapted to the shape and size of the first positioning plug hole 52 means that the side wall of the first positioning plug hole 52 is in contact with the side wall of the ring plate and the ring plate and the positioning plug 6 are radially positioned.

[0048] The compression elastic member 65 may be a strip elastic member, which may be provided with one or more than one along the circumference of the second pin segment 62. However, the compression elastic member 65 of this structure is easy to slide in the first positioning plug hole 52 after being compressed, and it is inconvenient to assemble. Preferably, the compression elastic member 65 is a compression elastic sleeve sleeved on the second pin segment 62, and the second pin segment 62 radially limits it, which has a simple structure and is easy to assemble. The compression elastic sleeve may be an elastic rubber sleeve or a compression spring.

[0049] To facilitate pulling the positioning pin 6, a handle structure may be provided on the end of the second pin section 62 extending from the first positioning socket 52. Preferably, a pull ring 7 is provided on the end of the second pin section 62 extending from the first positioning socket 52, which has a simple and reliable structure.

[0050] A method for clamping and positioning a shock absorber, using any of the above-mentioned shock absorber clamping and positioning tools, comprises the steps of:

[0051] S1, positioning and installing the base 1 of the shock absorber clamping and positioning tool on the prefabrication station of the conveyor line;

[0052] S2, select the positioning boss 2 that matches the specification of the shock absorber 91 and assemble it on the base 1, select the limiting block 3 that matches the U-shaped groove on the U-shaped member 93 and assemble it on the adapter block 5;

[0053] Adjust the positions of the support member 4 and the adapter block 5 on the base 1 so that the distance between the support member 4 and the center line of the positioning boss 2 is greater than the radius of the outer wall of the ferrule 92, and the distance between the limit block 3 and the center line of the positioning boss 2 is greater than the distance between the bottom wall of the U-shaped groove on the U-shaped member 93 and the center line of the shock absorber 91;

[0054] S3, aligning the circular groove on the bottom surface of the pre-clamped shock absorber 91 with the positioning boss 2 so that the positioning boss 2 is inserted into the circular groove on the bottom surface of the shock absorber 91, aligning the U-shaped slot on the U-shaped member 93 with the limit block 3 so that the limit block 3 is inserted into the U-shaped slot on the U-shaped member 93;

[0055] S4. Adjust the position of the adapter block 5 on the base 1 so that the limit block 3 abuts against the bottom wall of the U-shaped groove on the U-shaped member 93, and adjust the position of the support member 4 on the base 1 so that the support member 4 abuts against the outer wall of the sleeve 92 to position the entire shock absorber assembly structure on the shock absorber clamping and positioning tooling.

[0056] For different types of shock absorber combination structures, the shock absorber combination structure with shock absorbers 91 of different specifications can be clamped by replacing the positioning boss 2 and the limit block 3, and adjusting the horizontal positions of the support member 4 and the adapter block 5, thereby improving the line change efficiency, saving manpower, and improving the flexibility of the entire assembly line; there is no need to prepare multiple positioning tooling of different specifications, saving costs.

[0057] The terms "upper", "lower", "top" and "bottom" in the present invention are relative positions and cannot be understood as limitations on specific positions. The embodiments of this specific implementation are all preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A clamping and positioning tool for a shock absorber, comprising a base (1), the top surface of the base (1) being fastened with a positioning boss (2), a limit block (3) and a support member (4), the limit block (3) and the support member (4) being located on both sides of the positioning boss (2) in a horizontal direction; the top surface of the base (1) being a limit plane; characterized in that: It also includes an adapter block (5) fastened to the top surface of the base (1) and a positioning pin (6) installed on the adapter block (5); the adapter block (5) is provided with an upwardly opening plug hole (51) and a first positioning plug hole (52) perpendicular to the plug hole (51), and the first positioning plug hole (52) and the plug hole (51) are connected; the limit block (3) is provided with a downwardly protruding plug part (33) and an axial limiting part (34) protruding from the side wall of the plug part (33), the plug part (33) is plugged into the plug hole (51), and the lower end surface of the axial limiting part (34) is in contact with the upper surface of the adapter block (5); the plug part (33) is provided with a second positioning plug hole (31); the positioning pin (6) is plugged into the first positioning plug hole (52) and the second positioning plug hole (31); The support member (4) and the adapter block (5) are adjustable in radial direction of the positioning boss (2); and the positioning boss (2) is detachably mounted on the base (1).

2. The shock absorber clamping and positioning tool according to claim 1, characterized in that: The positioning boss (2) and the base (1) are fastened together by a first fastening bolt (21), and the center line of the first fastening bolt (21) is arranged in the up-down direction; The side wall of the upper part of the positioning boss (2) comprises two clamping planes which are parallel to each other.

3. The shock absorber clamping and positioning tool according to claim 2, characterized in that: A positioning groove (11) is provided on the top surface of the base (1), and the lower part of the positioning boss (2) is inserted into the positioning groove (11); the side wall of the positioning groove (11) is in contact with the side wall of the positioning boss (2).

4. The shock absorber clamping and positioning tool according to claim 1, characterized in that: The plug-in portion (33) is a prism structure, and the plug-in hole (51) and the plug-in portion (33) are matched in shape and size.

5. The shock absorber clamping and positioning tool according to claim 1, characterized in that: The limiting block (3) protrudes from the outer side wall of the plug-in portion (33); the bottom surface of the limiting block (3) is the axial limiting portion (34); the structural plate is simple and convenient to process.

6. The shock absorber clamping and positioning tool according to claim 1, characterized in that: The positioning pin (6) comprises a first pin segment (61) and a second pin segment (62) which are axially adjacent and coaxially arranged, and also comprises an axial limiting portion (63) protruding from the outer side wall of the first pin segment (61) and a second protruding portion (64) protruding from the side wall of the second pin segment (62); The first pin segment (61) is inserted into the second positioning insertion hole (31); the second pin segment (62), the axial limiting portion (63) and the second protruding portion (64) are all located in the first positioning insertion hole (52); an end of the second pin segment (62) away from the first pin segment (61) extends out of the first positioning insertion hole (52); the axial limiting portion (63) abuts against the outer wall of the inserting portion (33); The opening end of the first positioning socket (52) is provided with a first protrusion (53) protruding radially inwardly; a compression elastic member (65) is provided in the first positioning socket (52), one end of the compression elastic member (65) abuts against the second protrusion (64), and the other end of the compression elastic member (65) abuts against the first protrusion (53).

7. The shock absorber clamping and positioning tool according to claim 6, characterized in that: An annular plate is coaxially arranged on the first pin segment (61) and protrudes from the side wall of the first pin segment (61) and the side wall of the second pin segment (62); the outer contour of the cross section of the annular plate is adapted to the shape and size of the first positioning socket (52); the annular plate is the second protruding portion (64), and the end surface of the annular plate away from the second pin segment (62) is the axial limiting portion (63).

8. The shock absorber clamping and positioning tool according to claim 6, characterized in that: The compression elastic member (65) is a compression elastic sleeve sleeved on the second pin section (62).

9. The shock absorber clamping and positioning tool according to claim 6, characterized in that: A pull ring (7) is provided on the end of the second pin section (62) extending out of the first positioning insertion hole (52).

10. A method for clamping and positioning a shock absorber using the shock absorber clamping and positioning tool as claimed in any one of claims 1 to 9, characterized in that: Includes steps: S1, positioning and installing the base (1) of the shock absorber clamping and positioning tool on the prefabrication station of the conveyor line; S2, selecting the positioning boss (2) that matches the specifications of the shock absorber (91) and assembling it on the base (1), and selecting the limiting block (3) that matches the U-shaped slot on the U-shaped member (93) and assembling it on the adapter block (5); Adjust the positions of the support member (4) and the adapter block (5) on the base (1) so that the distance between the support member (4) and the center line of the positioning boss (2) is greater than the radius of the outer wall of the sleeve (92), and the distance between the limit block (3) and the center line of the positioning boss (2) is greater than the distance between the bottom wall of the U-shaped slot on the U-shaped member (93) and the center line of the shock absorber (91); S3, aligning the circular groove on the bottom surface of the pre-clamped and positioned shock absorber (91) with the positioning boss (2) so that the positioning boss (2) is inserted into the circular groove on the bottom surface of the shock absorber (91), and aligning the U-shaped slot on the U-shaped member (93) with the limiting block (3) so that the limiting block (3) is inserted into the U-shaped slot on the U-shaped member (93); S4. Adjust the position of the adapter block (5) on the base (1) so that the limit block (3) abuts against the bottom wall of the U-shaped slot on the U-shaped member (93); adjust the position of the support member (4) on the base (1) so that the support member (4) abuts against the outer wall of the sleeve (92), and position the entire shock absorber assembly structure on the shock absorber clamping and positioning tooling.

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