Clamp tool for assembling front cross beam and longitudinal beam of frame

Abstract

The utility model discloses a clamp tool for assembling a front cross beam and a longitudinal beam of a frame, and relates to the technical field of clamp tools. Comprising a base and clamping devices symmetrically arranged on the two sides of the extending direction of the base, and the clamping devices on the two sides are used for clamping longitudinal beams connected to the two sides of a head cross beam correspondingly. The clamping device comprises a positioning mechanism, a first clamping mechanism and a second clamping mechanism; the positioning mechanism is provided with a positioning piece capable of moving in the vertical direction and penetrating through the longitudinal beam and the head cross beam; the first clamping mechanism is provided with a first clamping mounting position for clamping the outer side wall of the longitudinal beam; the second clamping mechanism is provided with a second clamping mounting position for clamping the inner side wall of the longitudinal beam; a clamping channel for accommodating the longitudinal beam is formed between the first clamping mounting position and the second clamping mounting position; the head cross beam and the longitudinal beam are accurately positioned through the positioning mechanism, so that the mounting and positioning precision is improved; and the clamping channel can contain various types of longitudinal beams, so that the assembly between various types of frame longitudinal beams and the head cross beam is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamp tooling, and in particular relates to a clamp tooling used for assembling a first cross beam and a longitudinal beam of a vehicle frame. Background Art

[0002] The first crossbeam of the frame is the first crossbeam behind the front bumper of the vehicle body. The two ends of the first crossbeam of the frame in the extension direction are connected to the left longitudinal beam and the right longitudinal beam respectively; the first crossbeam is riveted and bolted to the left longitudinal beam and the right longitudinal beam respectively. The existing connection between the longitudinal beam and the crossbeam is completed manually with the help of a hoist. First, the right longitudinal beam is hoisted to the workbench, and then the left longitudinal beam is hoisted to the workbench. The crossbeam is adjusted by the hoist and connected to the left and right longitudinal beams respectively. However, there will be a large docking error through manual handling, and because the left and right longitudinal beams are long, the probability of positioning deviation is further increased. Inaccurate positioning during the connection between the left and right longitudinal beams and the first crossbeam can easily lead to opening. If the deviation is large, it will also cause the left and right longitudinal beams and the first crossbeam to be unable to be assembled;

[0003] In the prior art, for example, the patent publication number is CN217942362U, and the patent name is welding positioning tooling for the front section frame, which discloses a first concave positioning block set on the column for supporting the lower cross beam, a rotating positioning block for supporting the upper cross beam, and a second concave positioning block set on the base for supporting the lower longitudinal beam. However, it is only for the welding connection between the upper and lower cross beams and the longitudinal beams, and needs to be placed in a fixed positioning block, and is not suitable for the connection of longitudinal beams at both ends of the cross beam. In addition, due to the limited size of the positioning block, the connection between different types of longitudinal beams and cross beams is also limited. Utility Model Content

[0004] The utility model provides a fixture tool for assembling the first cross beam and the longitudinal beam of a vehicle frame, so as to solve the problem that the longitudinal beam and the cross beam have positioning errors, resulting in openings and being unable to be used for assembling different types of cross beams and longitudinal beams.

[0005] The technical solution adopted by the utility model is:

[0006] A fixture for assembling a first cross beam and a longitudinal beam of a vehicle frame, comprising a base and clamping devices symmetrically arranged on both sides of the base in an extending direction, wherein the clamping devices on both sides are respectively used to clamp the longitudinal beams connected to both sides of the first cross beam;

[0007] The clamping device includes a positioning mechanism, a first clamping mechanism and a second clamping mechanism; the positioning mechanism has a positioning member that can be vertically moved and installed in the longitudinal beam and the front cross beam; the first clamping mechanism has a first clamping mounting position for clamping the outer wall of the longitudinal beam; the second clamping mechanism has a second clamping mounting position for clamping the inner wall of the longitudinal beam; a clamping channel for accommodating the longitudinal beam is formed between the first clamping mounting position and the second clamping mounting position.

[0008] The fixture used for assembling the first cross beam and the longitudinal beam of the frame of the utility model also has the following additional technical features:

[0009] The first clamping mechanism includes a first rotating mechanism, a first limiting block and a first clamping block; the first rotating mechanism is rotatably connected to the base, the first limiting block is connected to the first rotating mechanism, and can rotate in a vertical plane driven by the first rotating mechanism, and the first clamping block is vertically connected to the first limiting block and can clamp the outer side wall of the longitudinal beam.

[0010] The first rotating mechanism includes a first support, a first rotating clamp and a first connecting frame; the first support is connected to the base, the first rotating clamp has a connecting end rotatably connected to the first support and a fixed end fixedly connected to the first connecting frame, the first connecting frame protrudes from the fixed end in the horizontal direction and is connected to the first limit block, so as to form a first clamping mounting position for accommodating the longitudinal beam between the first clamping block.

[0011] The fixture for assembling the first cross beam and the longitudinal beam of the frame also includes an auxiliary mechanism, which is connected to the first support, and includes a connecting plate, a push-pull assembly and a positioning block; the connecting plate is connected to the side of the first support facing the second clamping mechanism; the push-pull assembly is connected to the connecting plate for movement in the horizontal direction; the positioning block is connected to one end of the push-pull assembly extending beyond the connecting plate, and is used to abut against the outer side wall of the longitudinal beam.

[0012] The first clamping block has an abutment surface for clamping with the longitudinal beam, the projections of the first limit block along the X direction, the Y direction and the Z direction are all L-shaped structures, and the first limit block has a plurality of mounting holes along the Y direction for connecting with the other side of the first clamping block relative to the abutment surface, so as to adjust the vertical height of the first clamping block so that the abutment surface fits against the outer side wall of the longitudinal beam.

[0013] The second clamping mechanism includes a second rotating mechanism, a second limit block and a second clamping block; the second rotating mechanism is rotatably connected to the base, the second limit block is connected to the second rotating mechanism, and can rotate along a vertical plane driven by the second rotating mechanism, and the second clamping block is vertically connected to the second limit block and can clamp the inner side wall of the longitudinal beam.

[0014] The second rotating mechanism includes a second support, a second rotating clamp and a second connecting frame; the second support is connected to the base, the second rotating clamp has a rotating end rotatably connected to the second support and a fastening end fixedly connected to the second connecting frame, and the second connecting frame protrudes from the fastening end in the vertical direction and is connected to the second limit block.

[0015] One end of the second limit block extending along the X direction is connected to the second support, and the other end is connected to the second connecting frame; the second limit block has a supporting surface capable of supporting the bottom of the longitudinal beam, and the second clamping block has a clamping surface capable of clamping with the inner side wall of the longitudinal beam, and a second clamping installation position for accommodating the longitudinal beam is formed between the clamping surface and the supporting surface.

[0016] The positioning mechanism also includes a third support, a positioning assembly and an adjustment assembly;

[0017] The third support is connected to the base; the positioning assembly includes a positioning seat, a positioning member and a telescopic assembly. The positioning seat is connected to the third support through the adjustment assembly, and can adjust the position of the positioning assembly along an extension direction perpendicular to the base. The telescopic assembly can drive the positioning member to telescopically move along the extension direction of the positioning seat so that the positioning pin is installed in the longitudinal beam and the front cross beam.

[0018] The projection of the positioning mechanism along the extension direction of the base is arranged between the first clamping mechanism and the second clamping mechanism; the positioning mechanism on the base and the first clamping mechanism and the second clamping mechanism form a triangular distribution.

[0019] Due to the adoption of the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0020] 1. A clamping tool for assembling the first cross beam and the longitudinal beam of a vehicle frame, comprising a base and clamping devices symmetrically arranged on both sides of the extension direction of the base, the clamping devices on both sides are respectively used to clamp the longitudinal beams connected to the two sides of the first cross beam; the clamping device comprises a positioning mechanism, a first clamping mechanism and a second clamping mechanism; the positioning mechanism has a positioning member that can be vertically moved and installed in the longitudinal beam and the first cross beam; the first clamping mechanism has a first clamping installation position for clamping the outer side wall of the longitudinal beam; the second clamping mechanism has a second clamping installation position for clamping the inner side wall of the longitudinal beam; a clamping channel for accommodating the longitudinal beam is formed between the first clamping installation position and the second clamping installation position.

[0021] By arranging the clamping devices on both sides of the base, the longitudinal beams on both sides of the first cross beam can be clamped respectively. When in use, the longitudinal beams can be installed in the clamping channels respectively to realize the rough positioning of the longitudinal beams; then the outer wall and the inner wall of the longitudinal beam are clamped respectively by the first clamping mechanism and the second clamping mechanism, and then the first cross beam is embedded in the total amount on both sides, and the positioning parts of the positioning mechanism are vertically extended into the first cross beam and the longitudinal beam to accurately position the first cross beam and the longitudinal beam respectively, which not only improves the installation and positioning accuracy of the longitudinal beam and the cross beam, but also reduces the assembly error and improves the installation efficiency; the clamping channel is capable of accommodating longitudinal beams of various types and sizes, so as to realize the assembly between various types of frame longitudinal beams and the first cross beam.

[0022] 2. As a preferred embodiment of the present invention, the first clamping mechanism includes a first rotating mechanism, a first limiting block and a first clamping block; the first rotating mechanism is rotatably connected to the base, the first limiting block is connected to the first rotating mechanism, and can rotate in a vertical plane under the drive of the first rotating mechanism, and the first clamping block is vertically connected to the first limiting block and can clamp the outer wall of the longitudinal beam.

[0023] By setting the first rotating mechanism, the first limit block and the first clamping block can be driven to rotate relative to the base, which makes it easy to install the longitudinal beam into the fixture in the open state. When closed, the first limit block and the first clamping block are respectively clamped to the outer side wall of the longitudinal beam, which is convenient to operate. In addition, since the first limit block and the first clamping block can rotate relative to the base, there is enough space to position various types of longitudinal beams.

[0024] 3. As a preferred embodiment of the present utility model, the first rotating mechanism includes a first support, a first rotating clamp and a first connecting frame; the first support is connected to the base, the first rotating clamp has a connecting end rotatably connected to the first support and a fixed end fixedly connected to the first connecting frame, the first connecting frame protrudes from the fixed end in the horizontal direction and is connected to the first limit block, so as to form a first clamping mounting position for accommodating the longitudinal beam between the first clamping block.

[0025] The first support in the first rotating mechanism is used to fix the first rotating clamp and the first connecting member above the base. The first rotating clamp as a driving member can drive the first connecting frame to rotate relative to the base. The first connecting frame can protrude from the first rotating clamp. The purpose of setting the first rotating clamp is to be connected with the first limit block, so that there is a certain space between the first limit block and the first rotating clamp for the longitudinal beam to pass through. Since the first limit block is connected to the first clamping block, a first clamping mounting position for accommodating the longitudinal beam can be formed between the first rotating clamp and the first clamping block. When in use, the longitudinal beam is installed in the first clamping mounting position, and the first connecting frame is driven to rotate by the first rotating clamp, so that the first limit block drives the first clamping block to rotate around the base to clamp the longitudinal beam, thereby realizing the positioning of the longitudinal beam. Moreover, since there is enough space between the first rotating clamp and the first clamping block, various types of longitudinal beams and the first cross beam can be assembled.

[0026] 4. As a preferred embodiment of the present utility model, the second clamping mechanism includes a second rotating mechanism, a second limit block and a second clamping block; the second rotating mechanism is rotatably connected to the base, the second limit block is connected to the second rotating mechanism, and can rotate in a vertical plane under the drive of the second rotating mechanism, and the second clamping block is vertically connected to the second limit block to clamp the inner side wall of the longitudinal beam.

[0027] By setting up the second rotating mechanism, the second limit block and the second clamping block can be driven to rotate relative to the base. In the open state, the longitudinal beam is easy to install into the fixture. When closed, the second limit block and the second clamping block are respectively clamped to the inner side wall of the longitudinal beam, which is convenient to operate. In addition, since the second limit block and the second clamping block can rotate relative to the base, there is enough space to position various types of longitudinal beams.

[0028] 5. As a preferred embodiment of the present utility model, the positioning mechanism also includes a third support, a positioning assembly and an adjusting assembly; the third support is connected to the base; the positioning assembly includes a positioning seat, a positioning piece and a telescopic assembly, the positioning seat is connected to the third support through the adjusting assembly, and can adjust the position of the positioning assembly along an extension direction perpendicular to the base, the telescopic assembly can drive the positioning piece to telescopically move along the extension direction of the positioning seat, so that the positioning pin is installed in the longitudinal beam and the head cross beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0030] Figure 1 A side structural diagram of a fixture used for assembling the first cross beam and the longitudinal beam of a vehicle frame according to an embodiment of the utility model;

[0031] Figure 2 A side structural diagram of a first clamping structure of a fixture for assembling a first cross beam and a longitudinal beam of a vehicle frame according to an embodiment of the utility model;

[0032] Figure 3 It is a side structural diagram of a second clamping structure of a fixture used for assembling the first cross beam and the longitudinal beam of a vehicle frame according to one embodiment of the utility model;

[0033] Figure 4 It is a side structural diagram of a positioning mechanism for assembling the first cross beam and the longitudinal beam of a vehicle frame in one embodiment of the utility model;

[0034] Figure 5 It is a side view structural schematic diagram of an auxiliary mechanism for assembling the first cross beam and the longitudinal beam of a vehicle frame according to one embodiment of the utility model;

[0035] In the figure,

[0036] 1 base; 11 bottom plate, 12 first support plate, 13 second support plate;

[0037] 2 positioning mechanism, 21, third support, 22 positioning assembly, 221 positioning seat, 222 positioning member, 223 telescopic assembly, 23 adjusting assembly;

[0038] 3 first clamping mechanism, 31 first rotating mechanism, 311 first support, 312 first rotating clamp, 313 first connecting frame, 32 first limiting block, 33 first clamping block;

[0039] 4 second clamping mechanism, 41 second rotating mechanism, 411 second support, 412 second rotating clamp, 413 second connecting frame, 42 second limiting block, 43 second clamping block;

[0040] 5 auxiliary mechanism, 51 connecting plate, 52 push-pull assembly, 53 positioning block;

[0041] 6 abutting surface, 7 supporting surface, 8 clamping surface, 9 lifting ring. DETAILED DESCRIPTION

[0042] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0043] In addition, in the description of the present invention, it should be understood that the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0046] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0047] The utility model relates to a fixture for assembling the first cross beam and the longitudinal beam of a vehicle frame, such as Figure 1-5 As shown, it includes a base 1 and clamping devices symmetrically arranged on both sides of the extension direction of the base 1, and the clamping devices on both sides are respectively used to clamp the longitudinal beams connected to the two sides of the first crossbeam; the clamping device includes a positioning mechanism 2, a first clamping mechanism 3 and a second clamping mechanism 4; the positioning mechanism 2 has a positioning member 222 that can be vertically moved and installed in the longitudinal beam and the first crossbeam; the first clamping mechanism 3 has a first clamping installation position for clamping the outer side wall of the longitudinal beam; the second clamping mechanism 4 has a second clamping installation position for clamping the inner side wall of the longitudinal beam; a clamping channel for accommodating the longitudinal beam is formed between the first clamping installation position and the second clamping installation position.

[0048] By arranging the clamping devices on both sides of the base 1, the longitudinal beams on both sides of the first crossbeam can be clamped respectively. When in use, the longitudinal beams can be installed in the clamping channels respectively to realize the rough positioning of the longitudinal beams; then the outer wall and the inner wall of the longitudinal beam are clamped respectively by the first clamping mechanism 3 and the second clamping mechanism 4, and then the first crossbeam is embedded in the total amount on both sides, and the positioning member 222 of the positioning mechanism 2 is vertically extended into the first crossbeam and the longitudinal beam to accurately position the first crossbeam and the longitudinal beam respectively, which not only improves the installation and positioning accuracy of the longitudinal beam and the crossbeam, but also reduces the assembly error and improves the installation efficiency; the clamping channel is capable of accommodating longitudinal beams of various types and sizes, so as to realize the assembly between various types of frame longitudinal beams and the first crossbeam.

[0049] like Figure 2 As shown, as a preferred embodiment, the first clamping mechanism 3 includes a first rotating mechanism 31, a first limit block 32 and a first clamping block 33; the first rotating mechanism 31 is rotatably connected to the base 1, the first limit block 32 is connected to the first rotating mechanism 31, and can rotate in a vertical plane under the drive of the first rotating mechanism 31, and the first clamping block 33 is vertically connected to the first limit block 32 and can clamp the outer wall of the longitudinal beam.

[0050] By setting the first rotating mechanism 31, the first limit block 32 and the first clamping block 33 can be driven to rotate relative to the base 1. In the open state, it is convenient to install the longitudinal beam into the fixture. When closed, the first limit block 32 and the first clamping block 33 are respectively clamped with the outer wall of the longitudinal beam, which is convenient to operate. In addition, since the first limit block 32 and the first clamping block 33 can rotate relative to the base 1, there is enough space to position various types of longitudinal beams.

[0051] As a preferred embodiment, Figure 2 As shown, the first rotating mechanism 31 includes a first support 311, a first rotating clamp 312 and a first connecting frame 313; the first support 311 is connected to the base 1, the first rotating clamp 312 has a connecting end rotatably connected to the first support 311 and a fixed end fixedly connected to the first connecting frame 313, the first connecting frame 313 protrudes from the fixed end in the horizontal direction and is connected to the first limit block 32, so as to form a first clamping mounting position for accommodating the longitudinal beam between the first clamping block 33.

[0052] The first support 311 in the first rotating mechanism 31 is used to fix the first rotating clamp 312 and the first connecting member above the base 1. The first rotating clamp 312, as a driving member, can drive the first connecting frame 313 to rotate relative to the base 1. The first connecting frame 313 can protrude from the first rotating clamp 312 and is used to be connected with the first limiting block 32, so that there is a certain space between the first limiting block 32 and the first rotating clamp 312 for the longitudinal beam to pass through. Since the first limiting block 32 is connected to the first clamping block 33, a first clamping installation position for accommodating the longitudinal beam can be formed between the first rotating clamp 312 and the first clamping block 33. When in use, the longitudinal beam is installed in the first clamping installation position, and the first connecting frame 313 is driven to rotate by the first rotating clamp 312, so that the first limiting block 32 drives the first clamping block 33 to rotate around the base 1 to clamp the longitudinal beam, thereby realizing the positioning of the longitudinal beam. Moreover, since there is enough space between the first rotating clamp 312 and the first clamping block 33, various types of longitudinal beams and head cross beams can be assembled.

[0053] As a preferred embodiment, Figure 5 As shown, the fixture for assembling the first cross beam and the longitudinal beam of the frame also includes an auxiliary mechanism 5, which is connected to the first support 311, and includes a connecting plate 51, a push-pull assembly 52 and a positioning block 53; the connecting plate 51 is connected to the side of the first support 311 facing the second clamping mechanism 4; the push-pull assembly 52 is connected to the connecting plate 51 for movement in the horizontal direction; the positioning block 53 is connected to one end of the push-pull assembly 52 extending outside the connecting plate 51, and is used to abut against the outer wall of the longitudinal beam.

[0054] The connecting plate 51 is connected between the first support 311 and the first support plate 12 described below. The connecting plate 51 is in a T-shaped structure. One end of the connecting plate 51 extending in the vertical direction is connected to a push-pull assembly 52 toward one side of the second clamping mechanism 4. The push-pull assembly 52 can realize horizontal push-pull movement along the connecting plate 51. The push-pull assembly 52 includes a rotating rod, a moving rod and a push-pull member. The rotating rod has a first hinged portion hingedly connected to the connecting plate 51. The rotating rod also has a second hinged portion hingedly connected to one end of the push-pull member. The other end of the push-pull member is hingedly connected to the moving rod. The connecting plate 51 has a through hole for inserting the moving rod. The moving rod can extend out of the through hole and connect to the positioning block 53.

[0055] When in use, rotating the rotating rod can drive the push-pull member to move along the axial direction of the through hole, thereby driving the moving rod to telescope along the axial direction of the through hole. When the longitudinal beam is placed in the fixture and needs to abut against the outer wall of the longitudinal beam, the rotating rod is pulled to rotate the rotating rod toward the inner side of the base 1 in the horizontal direction, thereby driving the push-pull member to move toward the inner side of the base 1 along the axial direction of the through hole, thereby further realizing the movement of the moving rod and the positioning block 53 toward the inner side of the base 1. When the positioning block 53 abuts against the longitudinal beam, the rotating rod is stopped, so that the positioning blocks 53 in the clamping devices on both sides of the base 1 clamp and position the outer side walls of the longitudinal beams on both sides, thereby enhancing the positioning accuracy of the longitudinal beam and ensuring the relative position between the longitudinal beams on both sides.

[0056] Furthermore, the positioning block 53 is in a circular, square or other shaped structure. Specifically, there is no specific limitation on the shape of the positioning block 53 .

[0057] As a preferred embodiment, Figure 1 and Figure 2 As shown, the first clamping block 33 has an abutment surface 6 for clamping with the longitudinal beam, the projections of the first limit block 32 along the X direction, the Y direction and the Z direction are all L-shaped structures, and the first limit block 32 has a plurality of mounting holes along the Y direction for connecting with the other side of the first clamping block 33 relative to the abutment surface 6, so as to adjust the vertical height of the first clamping block 33 so that the abutment surface 6 fits against the outer wall of the longitudinal beam.

[0058] The first clamping block 33 has a plurality of holes corresponding to the mounting holes in its extending direction, and the holes are connected with different mounting holes to realize the change of the moving position of the first clamping block 33 along the Y direction of the first limit block 32, thereby realizing the adjustment of the height of the first clamping block 33 relative to the base 1 in the vertical direction, and can clamp longitudinal beams of different heights, adapting to the assembly of more types of longitudinal beams and cross beams;

[0059] One end of the first limit block 32 extending in the horizontal direction is connected to the first connecting frame 313, and one end of the first limit block 32 extending in the vertical direction is used to connect with the first clamping block 33. Since the first cross beam is embedded in the interior of the longitudinal beam, after the longitudinal beam is installed in place, the first cross beam is embedded in the interior of the longitudinal beam so that the first clamping block 33 is used to clamp the front end surface of the first cross beam, and the first limit block 32 can clamp the top outer wall surface of the longitudinal beam.

[0060] As a preferred embodiment, Figure 3 As shown, the second clamping mechanism 4 includes a second rotating mechanism 41, a second limit block 42 and a second clamping block 43; the second rotating mechanism 41 is rotatably connected to the base 1, the second limit block 42 is connected to the second rotating mechanism 41, and can rotate in a vertical plane under the drive of the second rotating mechanism 41, and the second clamping block 43 is vertically connected to the second limit block 42 and can clamp the inner side wall of the longitudinal beam.

[0061] By setting up the second rotating mechanism 41, it is possible to drive the second limit block 42 and the second clamping block 43 to rotate relative to the base 1. In the open state, it is convenient to install the longitudinal beam into the fixture. When closed, the second limit block 42 and the second clamping block 43 are respectively clamped with the inner side wall of the longitudinal beam, which is convenient to operate. In addition, since the second limit block 42 and the second clamping block 43 can rotate relative to the base 1, there is enough space to position various types of longitudinal beams.

[0062] As a preferred embodiment, Figure 3 As shown, the second rotating mechanism 41 includes a second support 411, a second rotating clamp 412 and a second connecting frame 413; the second support 411 is connected to the base 1, the second rotating clamp 412 has a rotating end rotatably connected to the second support 411 and a fastening end fixedly connected to the second connecting frame 413, and the second connecting frame 413 protrudes from the fastening end in the vertical direction and is connected to the second limit block 42.

[0063] The second support 411 in the second rotating mechanism 41 is used to fix the second rotating clamp 412 and the second connecting member above the base 1. The second rotating clamp 412 serves as a driving member and can drive the second connecting frame 413 to rotate relative to the base 1. The second connecting frame 413 can protrude from the second rotating clamp 412 and is provided to be connected with the second clamping block 43, so that the second clamping block 43 can be spaced a certain distance relative to the second limit block 42, so that the second clamping block 43 and the second limit block 42 have a certain installation space for the longitudinal beam to pass through.

[0064] Furthermore, the second rotating clamp 412 can adopt the quick clamp structure in the prior art to ensure that it can drive the second connecting frame 413 to rotate around the second support 411, and can be locked in the extreme position so that the second clamping block 43 is located above the inner wall of the longitudinal beam to clamp the inner wall of the longitudinal beam.

[0065] As a preferred embodiment, one end of the second limit block 42 extending along the X direction is connected to the second support 411, and the other end is connected to the second connecting frame 413; the second limit block 42 has a supporting surface 7 capable of supporting the bottom of the longitudinal beam, and the second clamping block 43 has a clamping surface 8 capable of clamping with the inner side wall of the longitudinal beam, and a second clamping mounting position for accommodating the longitudinal beam is formed between the clamping surface 8 and the supporting surface 7.

[0066] The second limit block 42 can be connected between the second rotating clamp 412 and the second support 411, and has a bearing surface that can be used to support the bottom of the longitudinal beam. The second limit block 42 includes a supporting block and a connecting block that are butt-connected. The supporting blocks are distributed vertically, and the connecting block is L-shaped. One end of the connecting block is used to connect the supporting block, and the other end is used to connect the second connecting frame 413 and can be rotated under the rotation of the second connecting frame 413 to complete the docking with the supporting block to form a supporting surface 7 for supporting the longitudinal beam; the second clamping block 43 has a clamping surface 8 that can be clamped with the inner side wall of the longitudinal beam, and there is a certain distance between the clamping surface 8 and the supporting surface 7, so that A first clamping installation position for installing the longitudinal beam is formed between the second clamping block 43 and the connecting block. When in use, the longitudinal beam can pass through the installation space between the clamping surface 8 and the supporting surface 7 and be installed in the first clamping installation position. The second connecting frame 413 is driven to rotate by the second rotating clamp 412. Under the action of the second rotating clamp 412, the second clamping block 43 rotates toward the longitudinal beam along the vertical action surface until the second clamping block 43 abuts against the inner wall surface of the longitudinal beam, thereby realizing the positioning of the longitudinal beam. Moreover, since there is enough space between the second rotating clamp 412 and the second clamping block 43, it is possible to assemble various types of longitudinal beams and head cross beams.

[0067] As a preferred embodiment, Figure 4 As shown, the positioning mechanism 2 also includes a third support 21, a positioning assembly 22 and an adjusting assembly 23; the third support 21 is connected to the base 1; the positioning assembly 22 includes a positioning seat 221, a positioning member 222 and a telescopic assembly 223, the positioning seat 221 is connected to the third support 21 through the adjusting assembly 23, and can adjust the position of the positioning assembly 22 along an extension direction perpendicular to the base 1, and the telescopic assembly 223 can drive the positioning member 222 to telescopically move along the extension direction of the positioning seat 221, so that the positioning pin is installed in the longitudinal beam and the head cross beam.

[0068] The function of the positioning mechanism 2 is mainly to realize that when the longitudinal beam is installed in place, the first cross beam is embedded in the inside of the longitudinal beam, and the first clamping mechanism 3 clamps the outer wall of the first cross beam and the outer wall of the longitudinal beam. The first cross beam and the longitudinal beam are both roughly positioned. In order to further accurately position the first cross beam and the longitudinal beam and fix them, the positioning mechanism 2 is located at the bottom of the longitudinal beam and extends upward through the first cross beam and the longitudinal beam so that the first cross beam and the longitudinal beam are accurately positioned, thereby further enhancing the position accuracy between the first cross beam and the longitudinal beam.

[0069] A first positioning hole is provided on the first cross beam, and a second positioning hole corresponding to the first positioning hole is provided on the longitudinal beam. After the first cross beam and the longitudinal beam are installed in place, the first positioning hole corresponds to the second positioning hole. At this time, the positioning mechanism 2 is started, and the positioning piece 222 is driven by the telescopic component 223 to extend axially upward through the first positioning hole and the second positioning hole, so that the longitudinal beam and the first cross beam are connected through the positioning piece 222, thereby realizing the precise positioning of the first cross beam and the longitudinal beam.

[0070] It is worth noting that the telescopic assembly 223 can adopt the standard structure of the quick clamp in the prior art, so as to realize the telescopic movement of the positioning member 222 in the axial direction. Similarly, a through hole for the positioning member 222 to pass through is provided on the third support 21, and the telescopic assembly 223 drives the positioning member 222 to realize the telescopic movement along the axial direction of the through hole, and penetrates the first positioning hole and the second positioning hole to realize the positioning between the first cross beam and the longitudinal beams on both sides.

[0071] The adjustment component 23 can be configured as a plurality of gaskets and locking members, wherein the plurality of gaskets are fixedly connected between the positioning seat 221 and the third support 21 through the locking members, so as to adjust the position of the positioning component 22 along the extension direction perpendicular to the base 1, so as to facilitate alignment with the first positioning hole of the first cross beam and the second positioning hole of the longitudinal beam. The specific number of gaskets is determined according to actual needs.

[0072] As a preferred embodiment, the projection of the positioning mechanism 2 along the extension direction of the base is arranged between the first clamping mechanism 3 and the second clamping mechanism 4; the positioning mechanism 2 on the base forms a triangular distribution with the first clamping mechanism 3 and the second clamping mechanism 4.

[0073] Specifically, the third support 21 is arranged between the first support 311 and the second support 411, and forms a triangular distribution with the third support 21, the first support 311, and the second support 411. The first support 311 and the second support 411 are spaced a certain distance apart so that the longitudinal beam can be respectively installed, and two-point positioning of the longitudinal beam is realized. The third support 21 is located between the first support 311 and the second support 411 for third-point positioning of the longitudinal beam, and a triangular positioning layout is realized. The triangular structure can have a stable support, and the stability of the assembly and positioning of the longitudinal beam and the head cross beam is further enhanced by the position setting of the first support 311, the second support 411, and the third support 21.

[0074] As a preferred embodiment, the base 1 includes a bottom plate 11, a first support plate 12 and a second support plate 13; the first support plate 12 is used to support and connect the first support 311, and the second support plate 13 is used to support and connect the second support 411; the top of the bottom plate 11 is also connected to a plurality of lifting rings 9, and the lifting rings 9 are used to connect lifting tools.

[0075] The first support plate 12 and the second support plate 13 are perpendicular to the bottom plate 11 and protrude from the bottom plate 11, so as to be able to install the longitudinal beam at a certain height on the bottom plate 11, which is convenient for the staff to operate. The bottom plate 11 is provided with a lifting ring 9, which can realize the lifting of the entire fixture tooling and facilitate transportation.

[0076] The parts not described in the present invention can be realized by adopting or drawing on the existing technology.

[0077] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0078] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A fixture for assembling the first cross beam and the longitudinal beam of a vehicle frame, characterized in that: It comprises a base and clamping devices symmetrically arranged on both sides of the base in the extending direction, wherein the clamping devices on both sides are respectively used to clamp the longitudinal beams connected to both sides of the front cross beam; The clamping device includes a positioning mechanism, a first clamping mechanism and a second clamping mechanism; the positioning mechanism has a positioning member that can be vertically moved and installed in the longitudinal beam and the front cross beam; the first clamping mechanism has a first clamping mounting position for clamping the outer wall of the longitudinal beam; the second clamping mechanism has a second clamping mounting position for clamping the inner wall of the longitudinal beam; a clamping channel for accommodating the longitudinal beam is formed between the first clamping mounting position and the second clamping mounting position.

2. A fixture for assembling the first cross beam and the longitudinal beam of a vehicle frame according to claim 1, characterized in that: The first clamping mechanism includes a first rotating mechanism, a first limiting block and a first clamping block; the first rotating mechanism is rotatably connected to the base, the first limiting block is connected to the first rotating mechanism, and can rotate in a vertical plane driven by the first rotating mechanism, and the first clamping block is vertically connected to the first limiting block and can clamp the outer side wall of the longitudinal beam.

3. A fixture for assembling the first cross beam and the longitudinal beam of a vehicle frame according to claim 2, characterized in that: The first rotating mechanism includes a first support, a first rotating clamp and a first connecting frame; the first support is connected to the base, the first rotating clamp has a connecting end rotatably connected to the first support and a fixed end fixedly connected to the first connecting frame, the first connecting frame protrudes from the fixed end in the horizontal direction to form a first clamping mounting position for accommodating the longitudinal beam between the first clamping block.

4. A fixture for assembling the first cross beam and the longitudinal beam of a vehicle frame according to claim 3, characterized in that: It also includes an auxiliary mechanism, which is connected to the first support, and includes a connecting plate, a push-pull assembly and a positioning block; the connecting plate is connected to the side of the first support facing the second clamping mechanism; the push-pull assembly is connected to the connecting plate for movement in the horizontal direction; the positioning block is connected to one end of the push-pull assembly extending beyond the connecting plate, and is used to abut against the outer side wall of the longitudinal beam.

5. A fixture for assembling the first cross beam and the longitudinal beam of a vehicle frame according to claim 2, characterized in that: The first clamping block has an abutment surface for clamping with the longitudinal beam, the projections of the first limit block along the X direction, the Y direction and the Z direction are all L-shaped structures, and the first limit block has a plurality of mounting holes along the Y direction for connecting with the other side of the first clamping block relative to the abutment surface, so as to adjust the vertical height of the first clamping block so that the abutment surface fits against the outer side wall of the longitudinal beam.

6. A fixture for assembling the first cross beam and the longitudinal beam of a vehicle frame according to claim 1, characterized in that: The second clamping mechanism includes a second rotating mechanism, a second limit block and a second clamping block; the second rotating mechanism is rotatably connected to the base, the second limit block is connected to the second rotating mechanism, and can rotate along a vertical plane driven by the second rotating mechanism, and the second clamping block is vertically connected to the second limit block and can clamp the inner side wall of the longitudinal beam.

7. A fixture for assembling the first cross beam and the longitudinal beam of a vehicle frame according to claim 6, characterized in that: The second rotating mechanism includes a second support, a second rotating clamp and a second connecting frame; the second support is connected to the base, the second rotating clamp has a rotating end rotatably connected to the second support and a fastening end fixedly connected to the second connecting frame, and the second connecting frame protrudes from the fastening end in the vertical direction and is connected to the second limit block.

8. A fixture for assembling the first cross beam and the longitudinal beam of a vehicle frame according to claim 7, characterized in that: One end of the second limit block extending along the X direction is connected to the second support, and the other end is connected to the second connecting frame; the second limit block has a supporting surface capable of supporting the bottom of the longitudinal beam, and the second clamping block has a clamping surface capable of clamping with the inner side wall of the longitudinal beam, and a second clamping installation position for accommodating the longitudinal beam is formed between the clamping surface and the supporting surface.

9. A fixture for assembling the first cross beam and the longitudinal beam of a vehicle frame according to claim 1, characterized in that: The positioning mechanism also includes a third support, a positioning assembly and an adjustment assembly; The third support is connected to the base; the positioning assembly includes a positioning seat, a positioning member and a telescopic assembly. The positioning seat is connected to the third support through the adjustment assembly, and can adjust the position of the positioning assembly along an extension direction perpendicular to the base. The telescopic assembly can drive the positioning member to telescopically move along the extension direction of the positioning seat so that the positioning pin is installed in the longitudinal beam and the front cross beam.

10. A fixture for assembling the first cross beam and the longitudinal beam of a vehicle frame according to claim 1, characterized in that: The projection of the positioning mechanism along the extension direction of the base is arranged between the first clamping mechanism and the second clamping mechanism; the positioning mechanism on the base and the first clamping mechanism and the second clamping mechanism form a triangular distribution.

Images