A replaceable insert-type clamping structure for fixing a vehicle chassis

Abstract

The present invention relates to the technical field of vehicle frame structure maintenance and repair, and specifically to a replaceable insert-type clamping structure for fixing a vehicle underframe, comprising: a support beam structure, comprising a positioning structure for movably setting an insert, and the insert is detachably set at the positioning structure; a clamping structure, comprising a bottom clamping frame connected and fixed to the support beam structure, and a clamping beam connected to the bottom clamping frame; a claw structure, comprising a clamping claw arranged on the support beam structure, the clamping claw comprising a fixed portion connected to the support beam structure, and a claw portion adjusted to rise and fall and rotate relative to the fixed portion, the claw portion being used to match the vehicle underframe and clamp the vehicle underframe; a support seat, used to support and fix the support beam structure. The clamping structure provided by the present invention is compatible with different vehicle underframe end structures, is easy to operate, and improves work efficiency, welding quality, and safety and stability.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle frame structure maintenance and repair, and in particular to a replaceable inlay-type clamping structure for fixing a vehicle underframe. Background Art

[0002] The underframe of railway freight cars is mainly composed of all-steel welded structures. When welding welds at different positions, the existing technology is to clamp the underframe at the middle beam traction beam, and then realize the lateral positioning through the inner web stop of the middle beam, and then flip it to different horizontal positions to facilitate operation and ensure welding quality, so as to complete the welding of welds at different positions. This technology is generally suitable for underframes with front and rear plates. This clamping method is flexible and convenient. Most models have underframes of this type of structure, which can meet the requirements of flipping. The process steps (taking the flip welding of the C70E underframe as an example) are: hoisting the underframe → clamping the underframe → flipping and welding → loosening the underframe → hoisting the underframe to the next process.

[0003] However, for the chassis component with the closed end of the center beam, it cannot be positioned horizontally in the inner cavity of the center beam, which will affect the clamping and flipping of the chassis component. Therefore, there is still room for improvement in this direction, and the structure of the clamping device needs to be adjusted and optimized so that the clamping structure can meet the fixing requirements of chassis of vehicles with different structures.

[0004] Therefore, it is necessary to propose a more reasonable technical solution to solve the technical problems existing in the prior art. Summary of the invention

[0005] In order to overcome at least one of the defects mentioned above, the present invention proposes a replaceable insert-type clamping structure for fixing the vehicle chassis, which is mainly used for flipping the closed structure of the traction beam end of the center beam of the chassis component, and can also meet the flipping welding of the chassis component with an open traction beam end, and has a certain versatility.

[0006] In order to achieve the above purpose, the clamping structure disclosed in the present invention can adopt the following technical solutions:

[0007] A replaceable insert-type clamping structure for fixing a vehicle underframe, comprising:

[0008] A joist structure, used for supporting the end of the underframe, including a positioning structure for movably setting an insert, the insert is detachably set at the positioning structure, and the insert includes a first fixing portion connected to the positioning structure, and the first fixing portion is provided with a claw group for transversely clamping the end of the underframe;

[0009] The clamping structure is used to clamp the end of the vehicle chassis, including a bottom clamping frame connected and fixed to the support beam structure, and a clamping beam connected to the bottom clamping frame;

[0010] A buckle claw structure, used to buckle the vehicle underframe, includes a buckle claw arranged on the joist structure, the buckle claw includes a fixing portion connected to the joist structure, and a claw portion that is adjusted to rise and fall and rotate relative to the fixing portion, the claw portion is used to cooperate with the vehicle underframe and buckle the vehicle underframe;

[0011] Support base, used to support the fixed joist structure.

[0012] The clamping structure disclosed above supports the vehicle underframe through the support beam structure, and the movable insert is easy to match and replace according to the width of the vehicle underframe, and can be adapted to the width of the end of the vehicle underframe for horizontal clamping; at the same time, the clamping structure and the claw structure connect and fix the vehicle underframe in the longitudinal direction, thereby improving the stability and reliability of the connection. The clamping structure provided by the present invention is easy to operate, can be applied to vehicle underframes of various structures, and has a wide range of application scenarios.

[0013] Furthermore, in the present invention, the joist structure can be constructed in a variety of forms, which are not specifically limited. Here, an optimization is made and one feasible option is given: the joist structure includes a top plate and a bottom plate arranged in parallel, and a plurality of side plates and end plates are arranged between the top plate and the bottom plate to form a hollow structure. When such a scheme is adopted, the top plate and the bottom plate are arranged in parallel, and the distance between the two is equal everywhere. The side plates support the top plate and the bottom plate to form a cylindrical structure, and the end plates block the two ends of the cylindrical structure, thereby forming a hollow joist structure.

[0014] Furthermore, the positioning structure is used to adapt and adjust according to the end structure of the vehicle frame, and help the end structure of the vehicle frame to be connected, positioned and fixed. The positioning structure can be constructed in a variety of forms, which are not limited to the specific ones. Here, an optimization is made and one of the feasible options is given: the positioning structure includes a positioning member arranged on the top plate, and the positioning member is provided with a positioning groove, and the two ends of the positioning groove are provided with stop blocks. When such a solution is adopted, the width of the positioning member is greater than the width of the end of the vehicle frame, so that the end of the vehicle frame can be placed between the stop blocks; and the corresponding insert member is arranged according to the width of the end structure of the vehicle frame, which can ensure the stable connection during the process of flipping the vehicle frame.

[0015] Furthermore, in order to ensure that the vehicle chassis can maintain a stable and reliable connection during the flipping process, the structure of the insert is optimized here, and one feasible option is given: the first fixing part of the insert is a square straight rod and is slidably matched with the positioning groove and slidably adjusted along the positioning groove, and the claw group of the insert includes a clamping block arranged at both ends of the square straight rod. When such a solution is adopted, the insert can adopt an integral molding structure. In some solutions, the length of the square straight rod is equal to the length of the positioning groove, and the length of the claw group can be set according to the size of the actual vehicle chassis end structure.

[0016] Furthermore, in the present invention, the vehicle frame is clamped longitudinally and transversely by a clamping structure. As the most reliable fastening structure, the clamping structure can adopt a variety of feasible schemes, which are not limited to the only one. Here, it is optimized and one of the feasible options is cited: the bottom clamping frame includes L-shaped brackets symmetrically arranged on both sides of the support beam structure, and the upper part of the L-shaped bracket is connected and fastened to the clamping beam through a flange structure. When such a scheme is adopted, the bottom clamping frame and the clamping beam jointly realize the embracing of the end structure of the vehicle frame, thereby completely fixing the frame. In some feasible schemes, the bottom clamping frame can also adopt a U-shaped bracket, which cooperates with the clamping beam to embrace the vehicle frame.

[0017] Furthermore, when installing the fastening claw, a variety of installation schemes can be adopted. Here, an optimization is made and one feasible option is given: a mounting seat is provided on the support beam structure, and the fixing part is connected and fixed to the mounting seat. When such a scheme is adopted, the mounting seat can be made of square steel, U-shaped steel and other components.

[0018] Furthermore, in the present invention, the support seat is used to support and stabilize the support beam structure. The structure of the support seat can be set according to a variety of schemes and is not limited to a single one. Here, an optimization is made and one feasible option is given: the support seat includes a first support portion and a second support portion arranged on the first support portion. The second support portion is matched with the support beam structure and is fastened by a tensioning structure. When such a scheme is adopted, the first support portion and the second support portion can be integrally formed or set as a detachable split structure and fixed by connecting fasteners.

[0019] Furthermore, the structure of the support seat is further optimized here, and one feasible option is given: a slot is provided on the second support part, and the support beam structure is inserted into the slot; a connecting hole is also provided on the second support part, and the front end of the first support part passes through the connecting hole and is connected to the second support part.

[0020] Further, the tensioning structure is optimized here and one of the feasible options is given: the tensioning structure includes a plurality of tensioning members, which pass through the joist structure and extend to the first support portion, the first support portion is provided with a pressing plate, and the tensioning members pass through the pressing plate and tighten the joist structure. When such a solution is adopted, the pressing plate is arranged on the bottom surface of the first support portion and symmetrically arranged on both sides of the second support portion, and tensioning is performed by the tensioning members, thereby achieving a fixed connection between the joist structure and the support seat structure.

[0021] Furthermore, in the present invention, in order to reduce the weight of the joist structure, the joist structure is optimized, and one feasible option is given here: the joist structure is also provided with a weight reduction structure. When such a solution is adopted, weight reduction holes can be provided on the side panels and the end panels.

[0022] Compared with the prior art, some beneficial effects of the technical solution disclosed in the present invention include:

[0023] The clamping structure provided by the present invention can connect and fix the ends of open and closed chassis, and maintain stable connection in the longitudinal and transverse directions, so as to ensure the safety and reliability of the operation when the chassis is turned over for processing and welding. When the clamping structure disclosed in the present invention is used, when different chassis end structures are matched, the compatible adaptation can be quickly completed by replacing the insert parts, the operation is simpler, and the applicable scenes are more diverse, which is conducive to improving the efficiency, welding quality, safety and stability of chassis processing and welding operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only represent some embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is an overall schematic diagram of the clamping structure.

[0026] Figure 2 Schematic diagram of the joist structure.

[0027] Figure 3 A schematic diagram of the claw structure.

[0028] Figure 4 It is a schematic diagram of the clamping structure connected to the vehicle frame and an enlarged schematic diagram of the local structure.

[0029] In the above drawings, the meanings of the various symbols are as follows:

[0030] 1. Support beam structure; 101. Top plate; 102. Bottom plate; 103. Side plate; 104. End plate; 2. Bottom clamping frame; 3. Clamping beam; 4. Positioning member; 401. Stop block; 5. Insert member; 501. Block; 6. Claw structure; 601. Fixing part; 602. Clamping claw; 7. First supporting part; 8. Second supporting part; 9. Tension member; 10. Pressing plate; 11. Mounting seat; 12. Underframe. DETAILED DESCRIPTION

[0031] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0032] In view of the application limitations of the existing underframe end fixing structure, the limited applicable structures and scenarios, the inconvenient operation and low efficiency, the following embodiments are optimized to overcome the defects in the prior art.

[0033] Example

[0034] like Figure 1~Figure 4 As shown, this embodiment provides a replaceable insert-type clamping structure for fixing the vehicle chassis 12, aiming to improve the compatibility of the clamping structure, improve the convenience of operation, and make the welding operation of the vehicle chassis 12 more convenient and reliable.

[0035] Specifically, Figure 1 , Figure 2 As shown, as the clamping structure provided in this embodiment, one of its structures includes:

[0036] The support beam structure 1 is used to support the end of the vehicle frame 12, and includes a positioning structure for movably setting the insert 5. The insert 5 is detachably set at the positioning structure, and the insert 5 includes a first fixing part connected to the positioning structure, and the first fixing part is provided with a claw group for transversely clamping the end of the vehicle frame 12.

[0037] In this embodiment, the joist structure 1 can be constructed in a variety of forms, which are not specifically limited. Here, optimization is performed and one of the feasible options is adopted: the joist structure 1 includes a top plate 101 and a bottom plate 102 arranged in parallel, and a plurality of side plates 103 and end plates 104 are arranged between the top plate 101 and the bottom plate 102 to form a hollow structure. When such a scheme is adopted, the top plate 101 and the bottom plate 102 are arranged in parallel, and the distance between the two is equal everywhere. The side plates 103 support the top plate 101 and the bottom plate 102 to form a cylindrical structure, and the end plates 104 block the two ends of the cylindrical structure, thereby forming a hollow joist structure 1.

[0038] Preferably, in this embodiment, the top plate 101, the bottom plate 102, the side plates 103 and the end plates 104 are fixed by welding. The front end width of the joist structure 1 is greater than the rear end width, and the positioning structure and the insert 5 are arranged at the wider end of the joist structure 1.

[0039] Preferably, the positioning structure is used to adapt and adjust according to the end structure of the vehicle bottom frame 12, and help the end structure of the vehicle bottom frame 12 to be connected, positioned and fixed. The positioning structure can be constructed in various forms, which are not limited to the specific ones. This embodiment is optimized and adopts one of the feasible options: the positioning structure includes a positioning member 4 arranged on the top plate 101, and the positioning member 4 is provided with a positioning groove, and the two ends of the positioning groove are provided with stop blocks 401. When such a scheme is adopted, the width of the positioning member 4 is greater than the width of the end of the vehicle bottom frame 12, so that the end of the vehicle bottom frame 12 can be placed between the stop blocks 401; and the corresponding insert member 5 is arranged according to the width of the end structure of the vehicle bottom frame 12, which can ensure the stable connection during the process of flipping the vehicle bottom frame 12.

[0040] In order to ensure that the vehicle frame 12 can maintain a stable and reliable connection during the flipping process, the present embodiment optimizes the structure of the insert 5 and adopts one of the feasible options: the first fixing portion of the insert 5 is a square straight rod and is slidably matched with the positioning groove and slidably adjusted along the positioning groove, and the claw group of the insert 5 includes a clamping block 501 arranged at both ends of the square straight rod. When such a solution is adopted, the insert 5 can adopt an integrally formed structure. In some solutions, the length of the square straight rod is equal to the length of the positioning groove, and the length of the claw group can be set according to the size of the actual end structure of the vehicle frame 12.

[0041] In this embodiment, in order to reduce the weight of the joist structure 1, the joist structure 1 is optimized, and one of the feasible options is adopted here: a weight reduction structure is also provided on the joist structure 1. When such a solution is adopted, weight reduction holes can be provided on the side plate 103 and the end plate 104.

[0042] like Figure 1 As shown, as the clamping structure provided in this embodiment, the second structure includes:

[0043] The clamping structure is used to clamp the end of the vehicle bottom frame 12 , and includes a bottom clamping frame 2 connected and fixed to the supporting beam structure 1 , and a clamping beam 3 connected to the bottom clamping frame 2 .

[0044] In this embodiment, the vehicle frame 12 is clamped longitudinally and transversely by a clamping structure. As the most reliable fastening structure, the clamping structure can adopt a variety of feasible schemes, which are not limited to the only one. This embodiment is optimized and adopts one of the feasible options: the bottom clamping frame 2 includes L-shaped brackets symmetrically arranged on both sides of the support beam structure 1, and the upper part of the L-shaped bracket is connected and fastened to the clamping beam 3 through a flange structure. When such a scheme is adopted, the bottom clamping frame 2 and the clamping beam 3 jointly realize the embracing of the end structure of the vehicle frame 12, thereby completely fixing the frame. In some feasible schemes, the bottom clamping frame 2 can also adopt a U-shaped bracket to cooperate with the clamping beam 3 to embrace the vehicle frame 12.

[0045] like Figure 3 As shown, as the clamping structure provided in this embodiment, the third structure includes:

[0046] The latch structure 6 is used to latch the vehicle underframe 12, and includes a latch claw 602 arranged on the joist structure 1. The latch claw 602 includes a fixing portion 601 connected to the joist structure 1, and a claw portion that can be raised, lowered, and rotated relative to the fixing portion 601. The claw portion is used to cooperate with the vehicle underframe 12 and latch the vehicle underframe 12.

[0047] When installing the fastening claw 602, multiple installation schemes can be adopted. This embodiment optimizes and adopts one of the feasible options: the support beam structure 1 is provided with a mounting seat 11, and the fixing part 601 is connected and fixed to the mounting seat 11. When such a scheme is adopted, the mounting seat 11 can be made of square steel, U-shaped steel and other components.

[0048] like Figure 1 , Figure 4 As shown, as the clamping structure provided in this embodiment, the fourth structure thereof includes:

[0049] The support seat is used to support and fix the joist structure 1.

[0050] In this embodiment, the support seat is used to support and stabilize the joist structure 1. The structure of the support seat can be set according to a variety of schemes and is not limited to a single one. This embodiment is optimized and adopts one of the feasible options: the support seat includes a first support portion 7 and a second support portion 8 arranged on the first support portion 7. The second support portion 8 corresponds to the joist structure 1 and is fastened by a tensioning structure. When such a scheme is adopted, the first support portion 7 and the second support portion 8 can be integrally formed, or can be set as a detachable split structure and fixed by connecting fasteners.

[0051] Preferably, the present embodiment further optimizes the structure of the support seat, and adopts one of the feasible options: the second support portion 8 is provided with a slot, and the support beam structure 1 is inserted into the slot; the second support portion 8 is also provided with a connecting hole, and the front end of the first support portion 7 passes through the connecting hole and is connected to the second support portion 8 to form a shape.

[0052] Preferably, the tensioning structure is optimized and one of the feasible options is adopted: the tensioning structure includes a plurality of tensioning members 9, which pass through the joist structure 1 and extend to the first support portion 7. The first support portion 7 is provided with a pressing plate 10, and the tensioning members 9 pass through the pressing plate 10 and tighten the joist structure 1. When such a solution is adopted, the pressing plate 10 is arranged on the bottom surface of the first support portion 7 and symmetrically arranged on both sides of the second support portion 8, and is tightened by the tensioning members 9, thereby realizing a fixed connection between the joist structure 1 and the support seat structure.

[0053] The clamping structure disclosed in this embodiment supports the vehicle underframe 12 through the support beam structure 1, and the movable insert 5 is easy to match and replace according to the width of the vehicle underframe 12, and can be adapted to the width of the end of the vehicle underframe 12 for horizontal clamping; at the same time, the clamping structure and the claw structure 6 connect and fix the vehicle underframe 12 in the longitudinal direction, thereby improving the stability and reliability of the connection. The clamping structure provided by the present invention is easy to operate, can be applied to vehicle underframes 12 of various structures, and has a wide range of application scenarios.

[0054] The above are the implementation methods listed in this embodiment, but this embodiment is not limited to the above optional implementation methods. Those skilled in the art can arbitrarily combine the above methods to obtain other various implementation methods. Anyone can derive other various implementation methods under the inspiration of this embodiment. The above specific implementation methods should not be understood as limiting the protection scope of this embodiment. The protection scope of this embodiment should be based on the definition in the claims.

Claims

1. A replaceable insert-type clamping structure for fixing a vehicle underframe, characterized in that: include: A support beam structure (1) is used to support the end of a vehicle underframe (12), comprising a positioning structure for movably arranging an insert (5), wherein the insert (5) is detachably arranged at the positioning structure, and the insert (5) comprises a first fixing portion connected to the positioning structure, wherein the first fixing portion is provided with a clamping claw group for laterally clamping the end of the vehicle underframe (12); A clamping structure, used for clamping the end of the vehicle underframe (12), comprising a bottom clamping frame (2) connected and fixed to the support beam structure (1), and a clamping beam (3) connected in cooperation with the bottom clamping frame (2); A latching claw structure (6) for latching the vehicle underframe (12), comprising a latching claw (602) arranged on the joist structure (1), the latching claw (602) comprising a fixing portion (601) connected to the joist structure (1), and a claw portion that can be raised and lowered and rotated relative to the fixing portion (601), the claw portion being used to cooperate with the vehicle underframe (12) and latch the vehicle underframe (12); The support base is used to support the fixed support beam structure (1).

2. The replaceable insert-type clamping structure for fixing the vehicle underframe according to claim 1 is characterized in that: The supporting beam structure (1) comprises a top plate (101) and a bottom plate (102) arranged in parallel, and a plurality of side plates (103) and end plates (104) are arranged between the top plate (101) and the bottom plate (102) to form a hollow structure.

3. The replaceable insert-type clamping structure for fixing the vehicle underframe according to claim 2 is characterized in that: The positioning structure comprises a positioning member (4) arranged on the top plate (101), a positioning groove being arranged on the positioning member (4), and stop blocks (401) being arranged at both ends of the positioning groove.

4. The replaceable insert-type clamping structure for fixing the vehicle underframe according to claim 1 or 3, characterized in that: The first fixing portion of the insert (5) is a square straight rod and is slidably matched with the positioning groove and slidably adjusted along the positioning groove. The claw assembly of the insert (5) comprises clamping blocks (501) arranged at both ends of the square straight rod.

5. The replaceable insert-type clamping structure for fixing a vehicle underframe according to claim 1, characterized in that: The bottom clamping frame (2) comprises L-shaped brackets symmetrically arranged on both sides of the support beam structure (1), and the upper part of the L-shaped bracket is connected and fastened to the clamping beam (3) via a flange structure.

6. The replaceable insert-type clamping structure for fixing a vehicle underframe according to claim 1, characterized in that: A mounting seat (11) is provided on the supporting beam structure (1), and the fixing portion (601) is connected and fixed to the mounting seat (11).

7. The replaceable insert-type clamping structure for fixing a vehicle underframe according to claim 1, characterized in that: The support seat comprises a first support portion (7) and a second support portion (8) arranged on the first support portion (7); the second support portion (8) corresponds to and cooperates with the support beam structure (1) and is fastened by a tensioning structure.

8. The replaceable insert-type clamping structure for fixing the vehicle underframe according to claim 7, characterized in that: The second support portion (8) is provided with a slot into which the support beam structure (1) is inserted; the second support portion (8) is also provided with a connecting hole, through which the front end of the first support portion (7) passes and is connected to the second support portion (8) to form a connection.

9. The replaceable insert-type clamping structure for fixing a vehicle underframe according to claim 7, characterized in that: The tensioning structure comprises a plurality of tensioning members (9), wherein the tensioning members (9) pass through the joist structure (1) and extend to the first support portion (7), the first support portion (7) being provided with a pressing plate (10), and the tensioning members (9) pass through the pressing plate (10) and tighten the joist structure (1).

10. The replaceable insert-type clamping structure for fixing a vehicle underframe according to claim 1, characterized in that: The supporting beam structure (1) is also provided with a weight-reducing structure.

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