Limiting mechanism for machining through passage vehicle body frame

Abstract

The utility model discloses a limiting mechanism for machining a through channel vehicle body frame, and belongs to the technical field of through channel machining. Comprising two limiting wheels used for supporting a frame body; the adjusting assembly is used for adjusting the distance between the two limiting wheels and is driven by external force to drive the frame body to reciprocate between the two stations; due to the fact that the two limiting wheels are adopted to support the frame body, and the limiting wheels are installed at the ends of the two adjusting arms, when the adjusting assembly is driven by external force to slide towards the adjacent stations along the guide rails, the two adjusting arms can synchronously rotate, and then the distance between the two limiting wheels is adjusted; and the limiting wheel is far away from the initial limiting position, so that the problem that surface treatment is inconvenient due to the fact that the clamping position of the limiting clamp on the vehicle body frame is inconvenient to adjust is effectively solved, and the effect that the limiting position can be automatically replaced in the machining process to guarantee the machining efficiency is achieved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of through passage processing, in particular to a limiting mechanism for through passage vehicle body frame processing. BACKGROUND

[0002] The through passage is a key component on a subway vehicle, connects adjacent carriages and ensures the safe passage of passengers. Its structure includes a vehicle body frame, a folding shed, a top guard plate, a side guard plate, a step support and a crossing plate. The main functions are windproof, rainproof, dustproof, heat insulation, sound insulation and providing standing and passing space for passengers.

[0003] The through passage vehicle body frame is a key component for connecting two carriages of a rail vehicle (such as a subway or a motor train unit), which needs to meet the requirements of high strength, light weight, fatigue resistance and sealing. Its processing technology involves material selection, forming, welding, surface treatment and other links. When the vehicle body frame is surface treated, the vehicle body frame needs to be positioned to ensure stability during processing. The traditional limiting clamp is not convenient to adjust the clamping position after clamping the vehicle body frame, which makes it difficult to perform surface treatment (such as sandblasting and coating) on the clamped part, and is not conducive to the processing of the through passage vehicle body frame.

[0004] In view of this, a limiting mechanism for through passage vehicle body frame processing is provided. CONTENT OF THE INVENTION

[0005] The application aims to provide a limiting mechanism for through passage vehicle body frame processing, which can effectively solve the problem of inconvenient surface treatment caused by the inconvenience of adjusting the clamping position of the limiting clamp on the vehicle body frame in the prior art.

[0006] The application provides a limiting mechanism for through passage vehicle body frame processing, which comprises:

[0007] A limiting wheel is arranged to support the frame body, and two limiting wheels are arranged.

[0008] An adjusting assembly is arranged to adjust the distance between the two limiting wheels, and is driven by an external force to drive the frame body to move back and forth between two workstations.

[0009] A guide rail is arranged on the top of the adjusting assembly as a support structure of the adjusting assembly.

[0010] The adjusting assembly comprises a bearing seat arranged on the bottom of the guide rail, two adjusting arms are symmetrically arranged on the inner side of the bearing seat, one end of the adjusting arm is rotatably arranged in the bearing seat, and the other end of the adjusting arm extends to the outer side of the bearing seat and is rotatably arranged with a limiting wheel.

[0011] As an optional solution of the technical scheme of the application, one end of the adjusting arm is coaxially fixed with gear A, two gears A are arranged in meshing relationship, the gear A is rotatably arranged in the bearing seat, the other end of the adjusting arm is rotatably arranged with a connecting rod, and the other end of the connecting rod is rotatably arranged with a limiting wheel.

[0012] As an optional solution of the technical scheme of the application, one end of the adjusting arm is coaxially fixed with gear A, two gears A are arranged in meshing relationship, the gear A is rotatably arranged in the bearing seat, the other end of the adjusting arm is rotatably arranged with a connecting rod, and the other end of the connecting rod is rotatably arranged with a limiting wheel.

[0013] The outer side of the guide rail is fixedly arranged with a toothed plate, the bottom of the toothed plate is arranged with a toothed segment, the toothed segment is in meshing cooperation with the gear B, and the toothed segment is arranged corresponding to one of the workstations.

[0014] As an optional solution of the technical scheme of the application, the inner side of the guide rail is slidably arranged with a sliding block, the bottom of the sliding block is fixedly arranged with a bearing seat, the outer side of the bearing seat is fixedly arranged with a cover plate, the cover plate is connected with an external driving device, and is used to drive the adjusting assembly to slide along the guide rail.

[0015] As an optional solution of the technical scheme of the application, the outer side of the cover plate is fixedly arranged with a supporting block, the outer side of the supporting block is detachably arranged with a pressing block, and the supporting block and the pressing block are fixedly arranged with a driving chain, which is used as a power source for driving the adjusting assembly to slide.

[0016] As an optional solution of the technical scheme of the application, the limiting wheel is arranged with a limiting groove on the outer periphery, and the limiting groove is in cooperation with the frame body.

[0017] As an optional solution of the technical scheme of the application, the limiting wheel is made of rubber material, and is detachably arranged with the adjusting arm.

[0018] The one or more technical schemes provided in the application embodiment have at least the following technical effects or advantages:

[0019] (1) In the application, two limiting wheels are arranged to support the frame body, and the limiting wheels are arranged at the ends of the two adjusting arms. When the adjusting assembly is driven by an external force to slide along the guide rail to the adjacent workstations, the two adjusting arms will synchronously rotate, so as to adjust the distance between the two limiting wheels, and make the limiting wheels away from the preliminary limiting position. Therefore, the problem that the surface treatment is inconvenient due to the inconvenient adjustment of the clamping position of the frame body by the limiting clamp is solved, and the effect that the limiting position can be automatically changed during the machining process to ensure the machining efficiency is achieved.

[0020] (2) The application limits the frame body in the axial direction by setting a limiting groove outside the limiting wheel, preventing the frame body from shaking and moving away along the axial direction of the limiting wheel during reciprocating movement, and ensuring the stability of the frame body during processing. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The whole structure schematic diagram of the limiting mechanism for frame processing of a through passage vehicle body is disclosed for a preferred embodiment of the application.

[0022] Figure 2 The rear view structure schematic diagram of the limiting mechanism for frame processing of a through passage vehicle body is disclosed for a preferred embodiment of the application.

[0023] Figure 3 The explosion structure schematic diagram of the limiting mechanism for frame processing of a through passage vehicle body is disclosed for a preferred embodiment of the application.

[0024] Figure 4 The working state schematic diagram of the limiting mechanism for frame processing of a through passage vehicle body is disclosed for a preferred embodiment of the application.

[0025] Explanation of reference numerals in the drawing: 100, frame body; 200, driving chain; 201, sprocket; 202, cross beam;

[0026] 1, limiting wheel; 11, limiting groove;

[0027] 2, adjusting assembly; 21, bearing seat; 22, adjusting arm; 23, gear A; 24, gear B; 25, connecting rod; 26, cover plate; 27, supporting block; 28, pressing block;

[0028] 3, guide rail; 31, sliding block; 32, toothed plate; 33, toothed segment. DETAILED DESCRIPTION

[0029] The application will be further described in detail below in combination with the drawings of the specification.

[0030] Reference Figure 1 and Figure 3The embodiment of the application discloses a limiting mechanism for processing a through channel vehicle body frame, which comprises limiting wheels 1, an adjusting assembly 2 and guide rails 3, the limiting wheels 1 are used for supporting a frame body 100, and the limiting wheels 1 are provided with two; the adjusting assembly 2 is used for adjusting the distance between the two limiting wheels 1, and drives the frame body 100 to move back and forth between two work stations under the action of external force; the guide rails 3 are slidably arranged on the top of the adjusting assembly 2 and are used as the supporting structure of the adjusting assembly 2; wherein the adjusting assembly 2 comprises a bearing seat 21 slidably arranged on the bottom of the guide rail 3, two adjusting arms 22 are symmetrically arranged on the inner side of the bearing seat 21, one end of the adjusting arm 22 is rotatably arranged in the bearing seat 21, and the other end of the adjusting arm 22 extends to the outer side of the bearing seat 21 and is rotatably arranged with the limiting wheel 1. A limiting groove 11 is formed in the outer circumferential side of the limiting wheel 1, the limiting groove 11 cooperates with the frame body 100, prevents the frame body 100 from moving along the axial direction of the limiting wheel 1 and falling off on the outer side of the limiting wheel 1, and prevents the frame body 100 from swinging during back and forth movement. The limiting wheel 1 is made of rubber material and is detachably arranged with the adjusting arm 22, so that the limiting wheel 1 can be conveniently disassembled, replaced and maintained in the later period.

[0031] When the frame body 100 is subjected to surface treatment, the frame body 100 is hung on the top of the two limiting wheels 1, the frame body 100 is supported and limited by the two limiting wheels 1, so that the stability of the frame body 100 during movement is ensured, when the frame body 100 is subjected to surface treatment such as sand blasting, the position where the limiting wheel 1 and the frame body 100 contact each other cannot be comprehensively treated, at this time, the adjusting assembly 2 is driven to slide along the guide rail 3 by an external driving device, the frame body 100 limited by the limiting wheel 1 driven by the adjusting assembly 2 is moved to the adjacent work station, the adjusting arms 22 on the inner side of the bearing seat 21 are synchronously rotated during the movement, the distance between the two limiting wheels 1 changes, the limiting wheel 1 is then moved away from the position where the limiting wheel 1 is preliminarily limited, and then the frame body 100 is subjected to comprehensive surface treatment, so that the supporting position of the limiting wheel 1 to the frame body 100 does not need to be separately adjusted during the surface treatment process, and the effect of automatically adjusting the limiting position is achieved.

[0032] Referring to Figure 3 One end of the adjusting arm 22 is coaxially and fixedly provided with a gear A23, the two gears A23 are arranged in mesh with each other, the gear A23 is rotatably arranged in the bearing seat 21, the other end of the adjusting arm 22 is rotatably provided with a connecting rod 25, and the other end of the connecting rod 25 is rotatably provided with the limiting wheel 1.

[0033] When the adjusting arm 22 rotates, the two adjusting arms 22 are symmetrically rotated through the meshing of the two gears A23, so that the limiting wheels 1 at the other ends of the two adjusting arms 22 are always located on the same horizontal plane, and the frame body 100 is prevented from being deviated during the adjustment of the two limiting wheels 1.

[0034] Referring to Figure 2 andFigure 3 One of the gear A23 is coaxially fixed outside the gear B24, gear B24 rotationally arranged in the bearing seat 21 outside; guide rail 3 outside fixedly provided with a toothed plate 32, toothed plate 32 bottom provided with tooth segment 33, tooth segment 33 and gear B24 meshing, tooth segment 33 corresponding to one of the station is provided.

[0035] In order to realize the adjustment arm 22 reciprocating movement between two stations can automatically drive the limit wheel 1 to adjust the limit distance, in one of the gear A23 coaxial connection gear B24, when the gear B24 between two stations will be moved in toothed plate 32 bottom and tooth segment 33 meshing and automatic disengaging, thereby realizing the effect of automatic driving adjustment arm 22 rotation, realized the limit wheel 1 limit position automatic adjustment.

[0036] Referring to Figure 1 , Figure 3 And Figure 4 , the guide rail 3 inside the sliding block 31 is provided with a bearing seat 21, the bearing seat 21 outside fixedly provided with a cover plate 26, cover plate 26 and external driving equipment connected, used to drive the adjustment assembly 2 along the guide rail 3 sliding. Cover plate 26 outside fixedly provided with a support block 27, support block 27 outside detachably provided with a pressure block 28, support block 27 and pressure block 28 between the fixed drive chain 200, as the driving force source of the adjustment assembly 2 sliding; the specific drive chain 200 is driven by two sprocket 201, two sprocket 201 rotationally arranged in the outside of the crossbeam 202, crossbeam 202 bottom fixedly provided with a guide rail 3.

[0037] Through the drive chain wheel 201 reciprocating rotation makes the drive chain 200 transmission, in turn drive bearing seat 21 along the guide rail 3 at the bottom of the crossbeam 202 sliding, make the bearing seat 21 drive the frame body 100 supported by the limit wheel 1 reciprocating movement between two stations, and through the pressure block 28 can be disassembled with the drive chain 200 bearing seat 21 and each other, in order to facilitate the maintenance and replacement of separate disassembly.

[0038] In summary, the position limiting mechanism for processing through-hole vehicle body frame disclosed in the embodiments of the present application is used to hang the frame body 100 to be processed on the top of the two position limiting wheels 1, support and limit the frame body 100 through the two position limiting wheels 1, and cooperate the frame body 100 with the limiting grooves 11 on the side of the position limiting wheels 1 to prevent the frame body 100 from moving along the axial direction outside the position limiting wheels 1 and falling off, and prevent the frame body 100 from swinging during the back-and-forth movement to ensure the stability of the frame body 100 during the movement. At this time, the frame body 100 is subjected to surface treatment such as sand blasting, and the position where the position limiting wheels 1 and the frame body 100 contact each other cannot be comprehensively treated. Then, the driving equipment (such as a motor) is used to drive the chain wheel 201 to reciprocating rotate to make the driving chain 200 transmit, and then drive the bearing seat 21 to slide along the guide rail 3 at the bottom of the cross beam 202, so that the bearing seat 21 drives the frame body 100 supported by the position limiting wheels 1 to move to the adjacent work station. During the movement, the gear B24 will mesh with and automatically disengage from the tooth segment 33 at the bottom of the tooth plate 32, and then the gear B24 drives one of the adjusting arms 22 to rotate, so that the adjusting arm 22 drives the other adjusting arm 22 to synchronously rotate through the gear A23 at the end of the adjusting arm 22, so that the distance between the two position limiting wheels 1 changes, and then the position limiting wheels 1 move away from the position when the position limiting wheels 1 are preliminarily limited. Then, the frame body 100 is subjected to comprehensive surface treatment. After the frame body 100 is comprehensively treated, the frame body 100 can be directly disassembled, and the frame body 100 to be treated can be continuously used after being reinstalled. During the surface treatment, the position of the position limiting wheels 1 supporting the frame body 100 does not need to be separately adjusted, and the position limiting position can be automatically adjusted.

Claims

1. A limiting mechanism for processing a through-passage vehicle body frame, characterized in that, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, 2. The limiting mechanism for processing of a through passage vehicle body frame according to claim 1, characterized in that: The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, 3. The limiting mechanism for processing of a through passage vehicle body frame according to claim 2, characterized in that: The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, 4. The limiting mechanism for processing of a through passage vehicle body frame according to claim 2, characterized in that: The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, 5. The limiting mechanism for processing of a through passage vehicle body frame according to claim 4, characterized in that: The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, 6. The limiting mechanism for processing of a through passage vehicle body frame according to claim 1, characterized in that: The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, 7. The limiting mechanism for processing of a through passage vehicle body frame according to claim 6, characterized in that: The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates to a frame body (100) is provided with two limiting wheels (1) for supporting, and the limiting wheel (1) is provided with two, and the adjusting assembly (2) for adjusting the distance of two limiting wheels (1) is driven by external force and drives frame body (100) to reciprocate between two stations, The utility model relates

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