A rear suspension support positioning tool and gantry mechanism

Abstract

The utility model relates to the positioning installation technical field of the suspension support of crane discloses a rear suspension support positioning tool for positioning the rear suspension support when installing the rear suspension support on the frame to make the length center line of rear suspension support coincide with the width center line of frame, which comprises: tool body and first positioning assembly respectively arranged at both ends of tool body, first positioning assembly includes first connecting piece and two first positioning pieces respectively detachably arranged at both ends of first connecting piece, first connecting piece is detachably arranged on tool body, and two first positioning pieces are used for respectively fitting installation on the two mounting surfaces of leaf spring support on rear suspension support. The rear suspension support positioning tool can not only position the rear suspension support, but also has good adaptability and reduces the cost. The utility model discloses a gantry mechanism.

Description

Technical Field

[0001] This utility model relates to the field of positioning and installation technology of suspension supports for cranes, and in particular to a rear suspension support positioning fixture and a gantry mechanism. Background Technology

[0002] like Figures 1 to 3 As shown, in a truck crane, the rear axle on the chassis frame is mounted on a rear suspension support 10a. The rear suspension support 10a comprises two parts: a leaf spring support 11a for mounting leaf springs and a thrust rod support 12a for mounting V-shaped thrust rods. These two parts form a complete rear suspension support 10a. The leaf spring support 11a has leaf spring mounting holes 111b, and the thrust rod support 12a has thrust rod mounting holes 121a. When welding the rear suspension support 10a onto the frame 13a, it is essential to ensure that the length centerline 100a of the rear suspension support 10a coincides with the width centerline 14a of the frame 13a, without any angular deviation. Any angular deviation will cause the rear axle of the vehicle to tilt after installation, resulting in vehicle veer.

[0003] Currently, in existing technologies, the dimensions of the leaf spring supports 11a on both sides of the rear suspension support 10a fall into two categories: one where the opening angle and height of the two leaf spring supports 11a are the same for the same vehicle model, and the other where the opening angle and height of the two leaf spring supports 11a are different for different vehicle models. Existing positioning fixtures can only meet the positioning and assembly requirements of the rear suspension support 10a for the same vehicle model, and the positioning and assembly requirements for different vehicle models are difficult to be compatible, resulting in high positioning and assembly costs. Therefore, there is an urgent need for a rear suspension support positioning fixture that can be compatible with the rear suspension support 10a for multiple vehicle models to reduce costs. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a rear suspension support positioning fixture that is compatible with and can position rear suspension supports for various vehicle models, thereby reducing costs.

[0005] This utility model provides a rear suspension support positioning fixture for positioning the rear suspension support when it is installed on a vehicle frame, so that the length centerline of the rear suspension support coincides with the width centerline of the vehicle frame. The fixture includes a fixture body and first positioning components respectively disposed at both ends of the fixture body. Each first positioning component includes a first connecting member and two first positioning members detachably disposed at both ends of the first connecting member. The first connecting member is detachably disposed on the fixture body. The two first positioning members are used to respectively abut against the two mounting surfaces of the leaf spring support installed on the rear suspension support.

[0006] In one embodiment, the first positioning member is provided with a first positioning part, which is used to position and connect to the support positioning part on the leaf spring support.

[0007] In one embodiment, the first positioning member is a positioning plate, the positioning plate is a plate-shaped structure, the first positioning part is a first positioning hole provided on the plate-shaped structure, the support positioning part is a leaf spring mounting hole, and the outer side of the first positioning member is used to fit against the mounting surface of the leaf spring support so that the first positioning hole and the leaf spring mounting hole are coaxially and detachably connected.

[0008] In one embodiment, the first connector includes a connecting portion and two inclined portions respectively disposed at both ends of the connecting portion. The connecting portion is detachably disposed on the tooling body, and the two first positioning members are detachably disposed on the two inclined portions respectively. In one embodiment, the first connecting member is an angle plate, which is a trapezoidal plate structure integrally formed by the connecting part and the two inclined parts, so that the first positioning member is set at an angle, and the connecting part is detachably provided at the bottom of the tooling body.

[0009] In one embodiment, the rear suspension support positioning fixture further includes a second positioning component, which is located at the bottom of the fixture body. The second positioning component has a second positioning part, which is used to position and connect the thrust rod support on the rear suspension support.

[0010] In one embodiment, the second positioning part is a second positioning hole, which is used to be coaxially and detachably connected to the thrust rod mounting hole on the thrust rod support.

[0011] In one embodiment, the top of the tooling body is provided with a mating part and a third positioning part. The mating part is used to cooperate with the gantry mechanism for clamping, and the third positioning part is used to cooperate with the gantry mechanism for positioning.

[0012] In one embodiment, the third positioning part is a positioning bushing, which is symmetrically arranged on the top of the tooling body along the length center line of the tooling body. The mating part is a wedge block, which is symmetrically arranged on the top of the tooling body along the length center line of the tooling body. A barbed groove is formed between the wedge block and the tooling body to facilitate the clamping of the gantry mechanism.

[0013] In one embodiment, the rear suspension support positioning fixture further includes a third positioning component connected to the fixture body. The third positioning component is provided with a fourth positioning part, which is used to position the length centerline of the rear suspension support and points to the plane where the bottom of the rear suspension support is located.

[0014] Another embodiment of this utility model provides a gantry mechanism for hoisting the rear suspension support positioning fixture provided in the foregoing embodiments and the rear suspension support installed on the rear suspension support positioning fixture together onto the vehicle frame for positioning and installation, so that the length centerline of the rear suspension support coincides with the width centerline of the vehicle frame. The gantry mechanism includes a gantry frame, a lifting mechanism disposed in the middle of the gantry frame, and a gripper assembly. The gripper assembly is convexly connected to the lifting mechanism and is used to grip the rear suspension support positioning fixture and the rear suspension support onto the vehicle frame for positioning and installation.

[0015] In one embodiment, the gantry mechanism further includes a second connector and a third connector, the second connector being vertically disposed on the third connector, the gripper assembly being disposed on the third connector, and the lifting mechanism being sequentially connected to the second connector, the third connector and the gripper assembly for driving the second connector, the third connector and the gripper assembly to perform lifting movements.

[0016] In one embodiment, the gripper assembly includes two grippers and a drive member. The two grippers are symmetrically arranged at the bottom of the third connector along the length center line of the third connector. The drive member is disposed on the third connector and connected to the two grippers. The drive member is used to drive the two grippers to grip the rear suspension support positioning fixture and the rear suspension support onto the vehicle frame for positioning and installation.

[0017] In one embodiment, the gantry mechanism further includes a second positioning member, which is symmetrically disposed at the bottom of the third connecting member along the length center line of the third connecting member. The second positioning member is used to detachably connect the tooling body so that the length center line of the tooling body coincides with the length center line of the gantry frame.

[0018] In one embodiment, the gantry mechanism further includes a sliding mechanism, the gantry frame is slidably disposed on the sliding mechanism, and the length centerline of the gantry frame coincides with the width centerline of the sliding mechanism.

[0019] The beneficial effects of this utility model are as follows: The rear suspension support positioning fixture provided by this utility model can adjust the angle of the first positioning component by disassembling and replacing the first connecting component, so that the first positioning component is more compatible with the leaf spring support. By disassembling and replacing the first positioning component with one of different thicknesses, the different height requirements of the two leaf spring supports can be met. It can not only position the rear suspension support, but also be compatible with the rear suspension supports of various vehicle models, with good adaptability and reduced cost.

[0020] The gantry mechanism provided by this utility model can hoist the rear suspension support positioning fixture and the rear suspension support together onto the vehicle frame for positioning and installation, saving labor costs and improving work efficiency. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the assembly structure of the rear suspension support and the vehicle frame.

[0023] Figure 2 This is a structural schematic diagram of the rear suspension support from a first-view perspective.

[0024] Figure 3 This is a structural schematic diagram of the rear suspension support from a second-view perspective.

[0025] Figure 4 This is a schematic diagram of the structure of a rear suspension support positioning fixture according to an embodiment of the present invention.

[0026] Figure 5 This is a bottom view of a rear suspension support positioning fixture according to an embodiment of the present invention.

[0027] Figure 6 This is a schematic diagram of the rear suspension support positioning fixture and the overall assembly of the rear suspension support and the vehicle frame, according to an embodiment of the present invention.

[0028] Figure 7 for Figure 6 A magnified schematic diagram of the structure at position A in the middle.

[0029] Figure 8 This is a schematic diagram of the gantry mechanism according to an embodiment of the present invention.

[0030] Figure 9 This is a schematic diagram of the overall assembly structure of the gantry mechanism and the rear suspension support positioning fixture according to an embodiment of the present invention.

[0031] Figure 10 This is a schematic diagram of the gantry mechanism according to an embodiment of the present invention. Detailed Implementation

[0032] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this utility model. Based on the description of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0034] The terms “upper,” “lower,” “left,” “right,” “front,” “back,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of description and simplification, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0035] The terms “first,” “second,” “third,” etc., are used merely to distinguish elements with similar properties, not to indicate or imply relative importance or a specific order.

[0036] The terms “include,” “comprising,” or any other variation thereof are intended to cover non-exclusive inclusion, which includes not only the elements listed but also other elements not expressly listed.

[0037] Please refer to Figures 4-7 This invention illustrates a rear suspension support positioning fixture provided in an embodiment of the present invention, used to position the rear suspension support 10a when it is installed on the vehicle frame 13a, so that the length centerline 100a of the rear suspension support 10a coincides with the width centerline 14a of the vehicle frame 13a. The fixture includes: a fixture body 12 and first positioning components 11 respectively disposed at both ends of the fixture body 12. The first positioning components 11 include a first connector 112 and two first positioning members 111 respectively detachably disposed at both ends of the first connector 112. The first connector 112 is detachably disposed on the fixture body 12. The two first positioning members 111 are used to respectively abut against the two mounting surfaces 111a of the leaf spring support 11a installed on the rear suspension support 10a.

[0038] like Figures 4-7As shown, in this embodiment, the rear suspension support positioning fixture 10 includes: a fixture body 12 and two first positioning components 11 respectively disposed at both ends of the fixture body 12. Each first positioning component 11 includes a first connector 112 and two first positioning members 111 respectively detachably disposed at both ends of the first connector 112. The first connector 112 is detachably disposed on the fixture body 12. The two first positioning members 111 are used to respectively fit against the two mounting surfaces 111a of the leaf spring support 11a installed on the rear suspension support 10a, so that the length centerline of the fixture body 12 coincides with the length centerline 100a of the rear suspension support 10a.

[0039] By disassembling and replacing the first connecting piece 112, the angle of the first positioning piece 111 can be adjusted, making the first positioning piece 111 more compatible with the leaf spring support 11a. By disassembling and replacing the first positioning piece 111 with different thicknesses, the different height requirements of the two leaf spring supports 11a can be met. This not only allows for the positioning of the rear suspension support 10a, but also ensures compatibility with rear suspension supports 10a under various vehicle models, exhibiting good adaptability and reducing costs.

[0040] like Figures 3-4 As shown, in one embodiment, the first positioning member 111 is provided with a first positioning part 1111, which is used to position and connect the support positioning part 111b on the leaf spring support 11a. Specifically, the leaf spring support 11a is provided with a support positioning part 111b. The first positioning part 1111 and the support positioning part 111b can be positioned by abutting each other to form surface, point and line contact, or they can be positioned by being connected to each other through positioning holes.

[0041] like Figures 3-4 As shown, in one embodiment, the first positioning member 111 is a positioning plate, which is a plate-shaped structure. The first positioning part 1111 is a first positioning hole provided on the plate-shaped structure, and the support positioning part 111b is a leaf spring mounting hole. The outer surface of the first positioning member 111 is used to fit against the mounting surface 111a of the leaf spring support 11a, so that the first positioning hole and the leaf spring mounting hole are coaxially and detachably connected. Specifically, the first positioning hole on the first positioning member 111 coincides with the leaf spring mounting hole on the leaf spring support 11a, and can be detachably connected by a pin or bolt, thereby achieving precise positioning of the first positioning member 111 when connected to the mounting surface 111a of the leaf spring support 11a.

[0042] like Figure 4As shown, in one embodiment, the first connecting member 112 includes a connecting portion 1121 and two inclined portions 1122 respectively disposed at both ends of the connecting portion 1121. The connecting portion 1121 is detachably disposed on the tooling body 12, and the two first positioning members 111 are detachably disposed on the two inclined portions 1122 respectively. By detachably disposing the first positioning members 111 on the inclined portions 1122, the angle of the first positioning members 111 can be adjusted, allowing the first positioning members 111 to be adapted to different types of leaf spring supports 11a, which is beneficial to improving the overall stability and adaptability.

[0043] like Figure 4 As shown, in one embodiment, the first connecting member 112 is an angle plate, which is a trapezoidal plate structure integrally formed by the connecting part 1121 and two inclined parts 1122, so that the first positioning member 111 is set at an angle, and the connecting part 1121 is detachably provided at the bottom of the tooling body 12.

[0044] Specifically, the angle plates are arranged in two ways. The first way is to detachably set multiple spaced and parallel angle plates at both ends of the tooling body 12. One end of the multiple angle plates at the same end of the tooling body 12 is detachably connected to a first positioning member 111 (i.e., the inclined portion 1122 at one end of the multiple angle plates is detachably connected to a first positioning member 111), and the other end of the multiple angle plates is detachably connected to another first positioning member 111 (i.e., the inclined portion 1122 at the other end of the multiple angle plates is detachably connected to another first positioning member 111). The second way is to detachably set a thicker angle plate at both ends of the tooling body 12. One end of each angle plate is detachably connected to a first positioning member 111 (i.e., the inclined portion 1122 at one end of each angle plate is detachably connected to a first positioning member 111), and the other end of each angle plate is detachably connected to another first positioning member 111 (i.e., the inclined portion 1122 at the other end of each angle plate is detachably connected to another first positioning member 111).

[0045] In this embodiment, the first arrangement is adopted. Two spaced and parallel angle plates are detachably set at both ends of the bottom of the tooling body 12. One end of the two angle plates at the same end of the bottom of the tooling body 12 is detachably connected to a first positioning member 111 (i.e., the inclined part 1122 at one end of the two angle plates is detachably connected to a first positioning member 111). The other end of the two angle plates is detachably connected to another first positioning member 111 (i.e., the inclined part 1122 at the other end of the two angle plates is detachably connected to another first positioning member 111). This makes the first positioning member 111 set at an angle, so that the positioning of the first positioning member 111 and the leaf spring support 11a is more accurate. At the same time, replacing the angle plates makes it easy to adjust the angle of the first positioning member 111, so that the first positioning member 111 can better adapt to different types of leaf spring supports 11a, further improving adaptability and overall stability.

[0046] like Figures 3-7 As shown, in one embodiment, the rear suspension support positioning fixture 10 further includes a second positioning component 13. The second positioning component 13 is located at the bottom of the fixture body 12, and a second positioning part 131 is provided on the second positioning component 13. The second positioning part 131 is used to position and connect the thrust rod support 12a on the rear suspension support 10a. By positioning the thrust rod support 12a through the second positioning component 13, the accuracy and reliability of the position of the rear suspension support 10a can be further improved.

[0047] like Figures 3-7 As shown, in one embodiment, the suspension support 10a is provided with a thrust rod support 12a, and the thrust rod support 12a is provided with a thrust rod mounting hole 121a. The second positioning part 131 is a second positioning hole, which is used to coaxially and detachably connect with the thrust rod mounting hole 121a on the thrust rod support 12a. Specifically, the second positioning hole and the thrust rod mounting hole 121a are coaxially and detachably connected by a pin or bolt. This can further improve the positioning accuracy and reliability of the entire rear suspension support positioning fixture, thereby greatly improving the positional accuracy and reliability of the rear suspension support 10a.

[0048] like Figure 4 As shown, in one embodiment, the top of the tooling body 12 is provided with a mating part 121 and a third positioning part 122. The mating part 121 is used to cooperate with the gantry mechanism 20 for clamping, and the third positioning part 122 is used to cooperate with the gantry mechanism 20 for positioning.

[0049] like Figure 4As shown, in one embodiment, the third positioning part 122 is a positioning bushing, and two positioning bushings are symmetrically arranged on the top of the tooling body 12 along the length center line of the tooling body 12. The mating part 121 is a wedge block, and two wedge blocks are symmetrically arranged on the top of the tooling body 12 along the length center line of the tooling body 12. Each wedge block forms a barb groove 123 with the tooling body 12 to facilitate clamping by the gantry mechanism 20. By setting the positioning bushings and wedge blocks, it is beneficial to achieve precise positioning with the gantry mechanism 20 and improve the convenience of assembly and work efficiency.

[0050] In one embodiment, the rear suspension support positioning fixture 10 further includes a third positioning component (not shown in the figure) connected to the fixture body 12. The third positioning component is provided with a fourth positioning part (not shown in the figure). The fourth positioning part is used to position the length center line 100a of the rear suspension support 10a and points to the plane where the bottom of the rear suspension support 10a is located.

[0051] The fourth positioning part positions the length centerline 100a of the rear suspension support 10a and can point to the plane where the bottom of the rear suspension support 10a is located, i.e., the top outer surface of the frame 13a. By observing whether the fourth positioning part points to the width centerline 14a of the stretched frame 13a or the drawn width centerline 14a of the frame 13a, it is possible to determine whether the length centerline 100a of the rear suspension support 10a coincides with the width centerline 14a of the frame 13a, thereby determining whether the position of the rear suspension support 10a is accurate. This avoids the error of the measuring tape and allows for observation while spot welding, which is more reliable than the measuring tape. This makes it easier to determine whether the position of the rear suspension support 10a is accurate and avoids the situation where the vehicle runs off course due to welding deviation.

[0052] Specifically, the third positioning component is located on the length centerline of the tooling body 12, and the fourth positioning part includes at least two sets of pointer structures. The pointer structures are located along the length centerline of the tooling body 12 along the direction of the third positioning component, and the tips of the pointer structures point to the plane where the bottom of the rear suspension support 10a is located, that is, the top outer surface of the frame 13a. By setting multiple sets of pointer structures to simultaneously determine whether the length centerline 100a of the rear suspension support 10a coincides with the width centerline 14a of the frame 13a, the accuracy and reliability are improved.

[0053] like Figures 8-10As shown, another embodiment of the present invention also provides a gantry mechanism for hoisting the rear suspension support positioning fixture 10 provided in the aforementioned embodiments and the rear suspension support 10a installed on the rear suspension support positioning fixture 10 together onto the vehicle frame 13a for positioning and installation, so that the length centerline 100a of the rear suspension support 10a coincides with the width centerline 14a of the vehicle frame 13a. The gantry mechanism 20 includes a gantry frame 21, a lifting mechanism 22 disposed in the middle of the gantry frame 21, and a gripper assembly 23. The gripper assembly 23 is operatively connected to the lifting mechanism 22 and is used to grip the rear suspension support positioning fixture 10 and the rear suspension support 10a onto the vehicle frame 13a for positioning and installation.

[0054] Specifically, the lifting mechanism 22 can be a servo motor or a lifting cylinder. The lifting mechanism 22 drives the gripper assembly 23 to perform lifting movements. The gripper assembly 23 clamps the rear suspension support positioning fixture 10 and the rear suspension support 10a onto the frame 13a for positioning and installation, ensuring that the length centerline 100a of the rear suspension support 10a coincides with the width centerline 14a of the frame 13a. The lifting mechanism 22 and the gripper assembly 23 work together to clamp the rear suspension support positioning fixture 10 and the rear suspension support 10a onto the frame 13a for positioning and installation, facilitating subsequent welding, saving labor costs, and improving work efficiency.

[0055] like Figures 8-10 As shown, in one embodiment, the gantry mechanism 20 further includes a second connecting member 24 and a third connecting member 25. The second connecting member 24 is vertically disposed on the third connecting member 25, and the gripper assembly 23 is disposed on the third connecting member 25. The lifting mechanism 22 is sequentially connected to the second connecting member 24, the third connecting member 25, and the gripper assembly 23 for transmission. The lifting mechanism 22 is used to drive the second connecting member 24, the third connecting member 25, and the gripper assembly 23 to perform lifting movements. This improves the overall stability, has a simple structure, and is easy to install.

[0056] In this embodiment, the width centerline of the second connector 24 coincides with the length centerline of the third connector 25, and the length centerline of the third connector 25 coincides with the length centerline of the gantry 21. This improves overall stability and facilitates alignment between the length centerline of the gantry 21 and the length centerline 100a of the rear suspension support 10a. Specifically, the second connector 24 is a guide longitudinal beam, and the third connector 25 is a base formed by connecting multiple crossbeams.

[0057] like Figures 8-9As shown, in one embodiment, the gripper assembly 23 includes two grippers 231 and a drive member 232. The two grippers 231 are symmetrically arranged at the bottom of the third connector 25 along the length center line of the third connector 25. The drive member 232 is disposed on the third connector 25 and connected to the two grippers 231. The drive member 232 is used to drive the two grippers 231 to grip the rear suspension support positioning fixture 10 and the rear suspension support 10a onto the vehicle frame 13a for positioning and installation. Specifically, the drive member 232 can be a servo motor or a drive cylinder, and can drive the two grippers 231 to grip the rear suspension support positioning fixture 10 and the rear suspension support 10a onto the vehicle frame 13a for positioning and installation via a connecting rod or lead screw.

[0058] In one embodiment, the gantry mechanism 20 further includes a second positioning member 26, which is symmetrically disposed at the bottom of the third connector 25 along the length center line of the third connector 25. The second positioning member 26 is used to detachably connect the tooling body 12 so that the length center line of the tooling body 12 coincides with the length center line of the gantry frame 21.

[0059] like Figures 8-9 As shown, in this embodiment, the gantry mechanism 20 also includes two second positioning members 26, which are symmetrically arranged at the bottom of the third connector 25 along the length center line of the third connector 25.

[0060] like Figure 4 As shown, in this embodiment, the top of the tooling body 12 is provided with a mating part 121 and two third positioning parts 122. The two third positioning parts 122 are symmetrically arranged on the top of the tooling body 12 along the length center line of the tooling body 12. The mating part 121 is used to cooperate with the gripper 231 for clamping, and the third positioning parts 122 are used to cooperate with the second positioning member 26 for positioning. Specifically, the third positioning part 122 is a positioning bushing, and two positioning bushings are symmetrically arranged on the top of the tooling body 12 along the length center line of the tooling body 12. The mating part 121 is a wedge block, and two wedge blocks are symmetrically arranged on the top of the tooling body 12 along the length center line of the tooling body 12. Each wedge block forms a barb groove 123 with the tooling body 12 to facilitate the gripper 231 for clamping.

[0061] The second positioning component 26 can be a fastener such as a pin, which is used to detachably connect to the third positioning part 122 (i.e., the positioning bushing). This allows the length centerline of the tooling body 12 to coincide with the length centerline of the gantry 21 (i.e., the length centerline 100a of the rear suspension support 10a coincides with the length centerline of the gantry 21). This facilitates the positioning of the rear suspension support 10a and its movement onto the frame 13a for welding positioning, improving the positioning accuracy of the gantry mechanism 20 for the rear suspension support positioning tooling 10. By simply adjusting the length centerline of the gantry 21 to coincide with the width centerline 14a of the frame 13a, the length centerline 100a of the rear suspension support 10a and the width centerline 14a of the frame 13a can be aligned, thus achieving precise positioning, facilitating welding positioning, avoiding manual measurement errors, and preventing angular tilting. This avoids quality defects such as vehicle deviation and tire wear, improving reliability and safety.

[0062] like Figure 10 As shown, in one embodiment, the gantry mechanism 20 further includes a sliding mechanism 27, and the gantry frame 21 is slidably disposed on the sliding mechanism 27, with the length centerline of the gantry frame 21 coinciding with the width centerline of the sliding mechanism 27.

[0063] In this embodiment, the sliding mechanism 27 consists of two guide rails, and the gantry frame 21 is slidably mounted on the two guide rails. The length centerline of the gantry frame 21 coincides with the width centerline between the two guide rails.

[0064] The operation method of the gantry mechanism 20 in this embodiment is as follows: The frame 13a is lowered into the working range of the gantry 21. The center line of the length of the gantry 21 is aligned with the center line 14a of the width of the frame 13a using an alignment device (not shown in the figure). The first positioning component 111 is fixed to the leaf spring support 11a with bolts, and the second positioning assembly 13 is fixed to the thrust rod support 12a with bolts, so that the rear suspension support 10a and the rear suspension support positioning fixture 10 are positioned and assembled. After positioning and assembly, the frame 13a is lowered onto the frame 13a. The gantry 21 is then slid along the guide rail to the rear... Above the suspension support positioning fixture 10, the lifting mechanism 22 drives the second connecting member 24, the third connecting member 25, and the gripper 231 to descend. The second positioning member 26 connects and positions with the third positioning part 122, so that the length center line of the fixture body 12 coincides with the length center line of the gantry frame 21 (i.e., the length center line 100a of the rear suspension support 10a coincides with the length center line of the gantry frame 21). Then, the driving member 232 drives the gripper 231 to clamp and tighten the mating part 121. The lifting mechanism 22 drives the rear suspension support... The positioning fixture 10 and the rear suspension support 10a are raised, and then the gantry 21 is slid along the guide rail to above the welding positioning point of the frame 13a; the lifting mechanism 22 drives the rear suspension support positioning fixture 10 and the rear suspension support 10a to descend and fall to the welding positioning point of the frame 13a, while the drive component 232 drives the gripper 231 to release the rear suspension support positioning fixture 10 and return to its original position, so that the rear suspension support positioning fixture 10 and the rear suspension support 10a are placed at the welding positioning point of the frame 13a. At this time, the rear suspension support 10a The length centerline 100a of the rear suspension support 10a automatically coincides with the width centerline 14a of the frame 13a. The lifting mechanism 22 drives the second connecting piece 24, the third connecting piece 25 and the gripper 231 to rise and return to their original positions. This ensures that the length centerline 100a of the rear suspension support 10a coincides with the width centerline 14a of the frame 13a, which facilitates subsequent welding work, avoids manual measurement errors, and prevents quality defects such as vehicle deviation and tire wear. This reduces costs and improves reliability and safety.

[0065] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A rear suspension support positioning fixture, used to position the rear suspension support (10a) when it is mounted on a vehicle frame (13a), so that the length centerline (100a) of the rear suspension support (10a) coincides with the width centerline (14a) of the vehicle frame (13a), characterized in that, include: The tooling body (12) and the first positioning components (11) respectively disposed at both ends of the tooling body (12). The first positioning components (11) include a first connector (112) and two first positioning components (111) respectively detachably disposed at both ends of the first connector (112). The first connector (112) is detachably disposed on the tooling body (12). The two first positioning components (111) are used to respectively fit into the two mounting surfaces (111a) of the leaf spring support (11a) installed on the rear suspension support (10a).

2. The rear suspension support positioning fixture according to claim 1, characterized in that, The first positioning member (111) is provided with a first positioning part (1111), which is used to position and connect the support positioning part (111b) on the leaf spring support (11a).

3. The rear suspension support positioning fixture according to claim 2, characterized in that, The first positioning member (111) is a positioning plate, which is a plate-shaped structure. The first positioning part (1111) is a first positioning hole provided on the plate-shaped structure. The support positioning part (111b) is a leaf spring mounting hole. The outer side of the first positioning member (111) is used to fit against the mounting surface (111a) of the leaf spring support (11a) so that the first positioning hole and the leaf spring mounting hole are coaxially and detachably connected.

4. The rear suspension support positioning fixture according to claim 1, characterized in that, The first connector (112) includes a connecting part (1121) and two inclined parts (1122) respectively disposed at both ends of the connecting part (1121). The connecting part (1121) is detachably disposed on the tooling body (12), and the two first positioning parts (111) are detachably disposed on the two inclined parts (1122).

5. The rear suspension support positioning fixture according to claim 4, characterized in that, The first connecting member (112) is an angle plate, which is a trapezoidal plate structure integrally formed by the connecting part (1121) and the two inclined parts (1122) so that the first positioning member (111) is set at an angle. The connecting part (1121) is detachably provided at the bottom of the tooling body (12).

6. The rear suspension support positioning fixture according to claim 1, characterized in that, The rear suspension support positioning fixture (10) further includes a second positioning component (13), which is located at the bottom of the fixture body (12). The second positioning component (13) is provided with a second positioning part (131), which is used to position and connect the thrust rod support (12a) on the rear suspension support (10a).

7. The rear suspension support positioning fixture according to claim 6, characterized in that, The second positioning part (131) is a second positioning hole, which is used to be coaxially and detachably connected with the thrust rod mounting hole (121a) on the thrust rod support (12a).

8. The rear suspension support positioning fixture according to claim 1, characterized in that, The tooling body (12) has a mating part (121) and a third positioning part (122) on its top. The mating part (121) is used to cooperate with the gantry mechanism (20) for clamping, and the third positioning part (122) is used to cooperate with the gantry mechanism (20) for positioning.

9. The rear suspension support positioning fixture according to claim 8, characterized in that, The third positioning part (122) is a positioning bushing, which is symmetrically arranged on the top of the tooling body (12) along the length center line of the tooling body (12). The mating part (121) is a wedge block, which is symmetrically arranged on the top of the tooling body (12) along the length center line of the tooling body (12). A barb groove (123) is formed between the wedge block and the tooling body (12) to facilitate the clamping of the gantry mechanism (20).

10. A gantry mechanism for hoisting a rear suspension support positioning fixture (10) as described in any one of claims 1 to 9 and a rear suspension support (10a) mounted on the rear suspension support positioning fixture (10) together onto a vehicle frame (13a) for positioning and installation, such that the length centerline (100a) of the rear suspension support (10a) coincides with the width centerline (14a) of the vehicle frame (13a), characterized in that, The gantry mechanism (20) includes a gantry frame (21), a lifting mechanism (22) disposed in the middle of the gantry frame (21), and a gripper assembly (23). The gripper assembly (23) is connected to the lifting mechanism (22) for transmission. The gripper assembly (23) is used to grip the rear suspension support positioning fixture (10) and the rear suspension support (10a) onto the vehicle frame (13a) for positioning and installation.

11. The gantry mechanism according to claim 10, characterized in that, The gantry mechanism (20) further includes a second connector (24) and a third connector (25). The second connector (24) is vertically mounted on the third connector (25). The gripper assembly (23) is mounted on the third connector (25). The lifting mechanism (22) is sequentially connected to the second connector (24), the third connector (25), and the gripper assembly (23). The lifting mechanism (22) is used to drive the second connector (24), the third connector (25), and the gripper assembly (23) to perform lifting movements.

12. The gantry mechanism according to claim 11, characterized in that, The gantry mechanism (20) further includes a second positioning member (26), which is symmetrically disposed at the bottom of the third connector (25) along the length center line of the third connector (25). The second positioning member (26) is used to detachably connect the tooling body (12) so that the length center line of the tooling body (12) coincides with the length center line of the gantry frame (21).

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