Rotary limiting structure of mini-truck longitudinal beam welding clamp

Abstract

The utility model relates to the technical field of mini-truck longitudinal beam machining, in particular to a rotary limiting structure of a mini-truck longitudinal beam welding clamp. Comprising a bottom plate, a vertical plate and a limiting mechanism, the limiting mechanism comprises a rotating frame, a bridge plate, a limiting column, a semicircular fixing base, a semicircular moving base, a mounting support, an air cylinder, a stabilizing device and an inserting device, during welding, a longitudinal beam is fixed through a plurality of chucks on the bridge plate, when the inserting device works, the bridge plate is in a horizontal state and is parallel to the bottom plate, and after the inserting device is loosened, the longitudinal beam is fixed through the limiting column. When the limiting column slides into the semicircular cavity of the semicircular fixing seat, the bridge plate is perpendicular to the bottom plate, and meanwhile, the air cylinder is controlled to act to push the semicircular moving seat to slide and abut against the upper portion of the limiting column for limiting, so that the longitudinal beam can be driven to rotate under some external impact. And reverse overturning of the longitudinal beam which is overturned in place cannot be caused, so that the stability during welding processing of the longitudinal beam of the mini-truck can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of micro truck longitudinal beam processing, especially relates to a rotary limiting structure of micro truck longitudinal beam welding fixture. BACKGROUND

[0002] When the existing longitudinal beam welding fixture is used, the longitudinal beam and corresponding positioning piece and connecting piece are clamped and fixed through the fixture, and the slot opening of the strip slot structure of the longitudinal beam main part is upward, when the welding worker needs to weld and process in the slot body of the longitudinal beam main part, the slot wall of the slot body is a vertical welding connecting surface, which can cause difficulty in accurately aligning the welding point for welding, and improves the welding difficulty.

[0003] The prior art CN205254388U discloses a welding fixture for micro truck longitudinal beam, which comprises a mounting plate in a strip-shaped plate structure, a plurality of clamping heads for clamping and fixing a longitudinal beam and connecting pieces thereof on the mounting plate, and a supporting seat, wherein the mounting plate is rotatably connected to the supporting seat in the length direction as an axial direction.

[0004] The applicant finds that when the above welding fixture is used, the mounting plate can be turned over when the limiting column of the fixture falls into and is limited in the limiting groove, and then welding can be carried out, but when welding, the limiting column is not limited at the top after falling into the limiting groove, and the longitudinal beam is easily turned over due to external impact during welding, thereby reducing the welding stability. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a rotary limiting structure of micro truck longitudinal beam welding fixture, which aims at improving the stability during welding processing of the micro truck longitudinal beam.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a rotary limiting structure of micro truck longitudinal beam welding fixture, which comprises a bottom plate and a vertical plate, the vertical plate is symmetrically fixed on the bottom plate, further comprises a limiting mechanism,

[0007] The limiting mechanism comprises a rotating frame, a bridge plate, a limiting column, a semicircular fixed seat, a semicircular movable seat, a mounting bracket, a cylinder, a stabilizing device and a plug-in device, the rotating frame is rotatably installed on the vertical plate, the bridge plate is fixedly connected with the rotating frame and is located between the rotating frames, a plurality of clamps are installed on the bridge plate, the limiting column is threadedly connected with the rotating frame and is symmetrically arranged on the rotating frame, the semicircular fixed seat is fixed on the vertical plate and is symmetrically arranged and is in sliding connection with the limiting column, the semicircular movable seat is in sliding connection with the vertical plate and the semicircular fixed seat respectively, penetrates through the vertical plate and is symmetrically arranged, the mounting bracket is fixed on the vertical plate and is located on the side of the vertical plate away from the bridge plate, the cylinder is fixed on the mounting bracket and is symmetrically arranged and the output end thereof is connected with the semicircular movable seat, the stabilizing device is arranged on the side of the bottom plate close to the vertical plate, and the plug-in device is arranged on the side of the vertical plate close to the rotating frame.

[0008] The stabilizing device comprises first and second stabilizing brackets, one side of the first stabilizing bracket is welded to the vertical plate and the other side is fixed to the bottom plate, one side of the second stabilizing bracket is welded to the vertical plate and the other side is fixed to the bottom plate and is symmetrically arranged with the first stabilizing bracket.

[0009] The plug-in device comprises a limiting plate and a plug, the limiting plate is fixed to the top of the vertical plate, and the plug is in sliding connection with the vertical plate, the limiting plate and the rotating frame and is located on the side of the vertical plate close to the rotating frame.

[0010] The plug has a rectangular groove and a limiting portion, and the limiting portion is symmetrically arranged.

[0011] The limiting mechanism further comprises a T-shaped threaded knob, the T-shaped threaded knob is in threaded connection with the limiting plate, penetrates through the limiting plate and abuts against the top surface of the plug at the bottom stepped end.

[0012] The rotating limiting structure of the micro truck longitudinal beam welding clamp of the utility model, the bottom plate is used for clamp fixing, when welding, the longitudinal beam is fixed through the plurality of clamps on the bridge plate, when the plug-in device works, the flat plate portion of the bridge plate is in a horizontal state and is parallel to the bottom plate, after the plug-in device is loosened, the bridge plate is directly moved, the longitudinal beam can be driven to rotate, when the limiting column slides into the semicircular cavity of the semicircular fixed seat, the flat plate portion of the bridge plate is perpendicular to the bottom plate, at the same time, the cylinder is controlled to act, the semicircular movable seat is pushed to slide and is limited above the limiting column, so that the longitudinal beam will not be reversely turned over after turning over in place under some external impact, and the stability during the welding of the micro truck longitudinal beam can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the rotation limiting structure of the welding fixture for the longitudinal beam of the miniature truck according to the first embodiment of this utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the semi-circular movable base according to the first embodiment of this utility model.

[0016] Figure 3 This is a schematic diagram of the installation position of the limiting post according to the first embodiment of this utility model.

[0017] Figure 4 This is a schematic diagram of the overall structure of the rotation limiting structure of the welding fixture for the longitudinal beam of the miniature truck according to the second embodiment of this utility model.

[0018] In the diagram: 101-base plate, 102-vertical plate, 103-rotating frame, 104-bridge plate, 105-limiting post, 106-semi-circular fixed seat, 107-semi-circular movable seat, 108-mounting bracket, 109-cylinder, 110-first stabilizing bracket, 111-second stabilizing bracket, 112-limiting plate, 113-insertion block, 201-T-shaped threaded knob. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Example 1:

[0021] like Figures 1 to 3 As shown, where Figure 1 This is a schematic diagram of the overall structure of the rotation limiting structure of the welding fixture for the longitudinal beams of a mini-truck. Figure 2 This is a structural schematic diagram of the semi-circular movable seat 107. Figure 3 This is a schematic diagram of the installation position of the limiting post 105. This utility model provides a rotation limiting structure for a welding fixture for the longitudinal beam of a mini-truck: it includes a base plate 101, a vertical plate 102, and a limiting mechanism. The limiting mechanism includes a rotating frame 103, a bridge plate 104, a limiting post 105, a semi-circular fixed seat 106, a semi-circular movable seat 107, a mounting bracket 108, a cylinder 109, a stabilizing device, and a plug-in device. The stabilizing device includes a first stabilizing bracket 110 and a second stabilizing bracket 111. The plug-in device includes a limiting plate 112 and a plug block 113. The aforementioned solution can improve the stability of the longitudinal beam welding process for mini-trucks. It is understood that the aforementioned solution facilitates stable welding of the longitudinal beam.

[0022] In this embodiment, the upright plate 102 is symmetrically fixed on the base plate 101. The upright plate 102 is fixed by positioning pins and bolts. The upright plate 102 is symmetrically provided with sliding cavities for sliding guidance of the semi-circular moving seat 107, and a U-shaped mating cavity is also provided at the top.

[0023] The rotating frame 103 is rotatably mounted on the upright plate 102. The bridge plate 104 is fixedly connected to the rotating frame 103 and located between the rotating frames 103. Several clamps are mounted on the bridge plate 104. The limiting post 105 is threadedly connected to the rotating frame 103 and symmetrically arranged on the rotating frame 103. The semi-circular fixed seat 106 is fixed to the upright plate 102, symmetrically arranged, and slidably connected to the limiting post 105. The semi-circular movable seat 107 is respectively connected to the upright plate 102 and the upright plate 102. The semi-circular fixed seat 106 is slidably connected and passes through the upright plate 102, and is symmetrically arranged. The mounting bracket 108 is fixed on the upright plate 102 and is located on the side of the upright plate 102 away from the bridge plate 104. The cylinder 109 is fixed on the mounting bracket 108 and is symmetrically arranged, and its output end is connected to the semi-circular movable seat 107. The stabilizing device is located on the side of the base plate 101 near the upright plate 102. The plug-in device is located on the side of the upright plate 102 near the rotating frame 103. The mounting shaft end of the rotating frame 103 is mounted on the upright plate 102 via a rotary bearing. The bridge plate 104 is connected to the rectangular plate end of the rotating frame 103 via positioning pins and bolts. The externally threaded end of the front side of the limiting post 105 can be directly mounted on the rectangular plate end of the rotating frame 103. The semi-circular fixed seat 106 is fixed by positioning pins and bolts. The semi-circular movable seat 107 can slide between the sliding cavity on the upright plate 102 and the top end face of the semi-circular fixed seat 106. Its tail is provided with a rectangular connecting part, which is connected to the air... The output end of cylinder 109 is connected, and cylinder 109 is fixed to mounting bracket 108 by bolts. Mounting bracket 108 is fixed to vertical plate 102 by positioning pins and bolts. The stabilizing device is used to improve the stability of vertical plate 102. The plug-in device is used to limit the rotation frame 103 and maintain the stability of bridge plate 104 when it is horizontal. Several clamps (not shown in the figure) are installed on the flat plate of bridge plate 104. The structure disclosed in prior art CN205254388U can be directly adopted to fix the longitudinal beam.

[0024] Secondly, the first stabilizing bracket 110 is welded to the upright plate 102 on one side and fixed to the base plate 101 on the other side; the second stabilizing bracket 111 is welded to the upright plate 102 on one side and fixed to the base plate 101 on the other side, and is symmetrically arranged with the first stabilizing bracket 110. The first stabilizing bracket 110 and the second stabilizing bracket 111 have the same dimensions. One end of each is welded to the upright plate 102, and the other end is fixed to the base plate 101 by positioning pins and bolts. After installation, tilting support can improve the stability of the upright plate 102.

[0025] Then, the limiting plate 112 is fixed to the top of the upright plate 102; the insert 113 is slidably connected to the upright plate 102, the limiting plate 112 and the rotating frame 103 respectively, and is located on the side of the upright plate 102 near the rotating frame 103. The limiting plate 112 is fixed by positioning pins and bolts. After installation, it forms a square rectangular cavity with the U-shaped mating cavity at the top of the upright plate 102, which facilitates the sliding of the insert 113. The top of the rotating frame 103 is provided with a U-shaped cavity that mates with the insert 113. When the bridge plate 104 needs to be in a horizontal position, the two inserts 113 can be inserted respectively and pushed closer to each other until the front end slides into the mating cavity at the top of the rotating frame 103, which facilitates the limiting. When the bridge plate 104 needs to be flipped, the inserts 113 can be pulled out and removed directly to flip the bridge plate 104.

[0026] Finally, the insert 113 has a rectangular groove and a limiting part, with the limiting part symmetrically arranged. The rectangular groove facilitates the installation or removal of the insert 113, and the limiting part is used to limit the movement. When it abuts against the upright plate 102, the front end of the insert 113 can slide into the mating cavity at the top of the rotating frame 103, achieving a flush end face.

[0027] When using this utility model to improve the stability of longitudinal beam welding in mini-trucks, the base plate 101 is used for clamping. During welding, the longitudinal beam is fixed by several clamps on the bridge plate 104. When the insertion device is working, i.e., the front side of the insertion block 113 is inserted into the mating cavity at the top of the rotating frame 103, the bridge plate 104 is in a horizontal state and parallel to the base plate 101. After releasing the insertion device, the two insertion blocks 113 are removed, and the bridge plate 104 is moved directly to drive the longitudinal beam to rotate. When the limiting post 105 slides into the semi-circular cavity of the semi-circular fixing seat 106, the horizontal position of the bridge plate 104 is then... The plate is perpendicular to the base plate 101. At the same time, the cylinder 109 is controlled to move, pushing the semi-circular moving seat 107 to slide and abut against the limit post 105. At this time, the semi-circular fixed seat 106 and the semi-circular moving seat 107 cooperate to form a circular cavity with the same outer diameter as the limit post 105 for limiting. Thus, under some external impact, the longitudinal beam will not be reversed after being flipped into place. When the cylinder 109 retracts, the front end of the semi-circular moving seat 107 will not interfere with the limit post 105 sliding into the semi-circular fixed seat 106, thereby improving the stability of the longitudinal beam welding process of the mini truck.

[0028] Example 2:

[0029] like Figure 4 As shown, where Figure 4 This is a schematic diagram of the overall structure of the rotation limiting structure of the welding fixture for the longitudinal beam of a mini-truck. Based on the first embodiment, this utility model provides a rotation limiting structure for the welding fixture for the longitudinal beam of a mini-truck. The limiting mechanism also includes a T-shaped threaded knob 201, which is threadedly connected to and passes through the limiting plate 112, with its bottom stepped end abutting against the top surface of the insert block 113. The limiting plate 112 is provided with a through threaded hole to facilitate the setting of the T-shaped threaded knob 201, and the bottom of the external thread end of the T-shaped threaded knob 201 is a stepped round shaft end.

[0030] In this embodiment, by setting the T-shaped threaded knob 201, after the insert 113 is inserted into the rotating frame 103 for engagement, the T-shaped threaded knob 201 can be tightened to lock the insert 113 in place, which helps to improve the stability of the bridge plate 104 when it is parallel to the base plate 101 and in a horizontal state. When the bridge plate 104 is flipped, the T-shaped threaded knob 201 can be loosened directly so that it does not abut against the insert 113, and then the insert 113 can be removed for flipping.

[0031] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A rotation limiting structure for a welding fixture for the longitudinal beam of a miniature truck, comprising a base plate and a vertical plate, wherein the vertical plate is symmetrically fixed on the base plate, characterized in that: It also includes a limiting mechanism; The limiting mechanism includes a rotating frame, a bridge plate, a limiting post, a semi-circular fixed seat, a semi-circular movable seat, a mounting bracket, a cylinder, a stabilizing device, and a plug-in device. The rotating frame is rotatably mounted on the upright plate. The bridge plate is fixedly connected to the rotating frame and located between the rotating frames. Several clamps are installed on the bridge plate. The limiting post is threadedly connected to the rotating frame and symmetrically arranged on the rotating frame. The semi-circular fixed seat is fixed to the upright plate, symmetrically arranged, and slidably connected to the limiting post. The semi-circular movable seat is slidably connected to both the upright plate and the semi-circular fixed seat, passes through the upright plate, and is symmetrically arranged. The mounting bracket is fixed to the upright plate and located on the side of the upright plate away from the bridge plate. The cylinder is fixed to the mounting bracket and symmetrically arranged, and its output end is connected to the semi-circular movable seat. The stabilizing device is located on the side of the base plate near the upright plate, and the plug-in device is located on the side of the upright plate near the rotating frame.

2. The rotation limiting structure of the welding fixture for the longitudinal beam of a miniature truck as described in claim 1, characterized in that: The stabilizing device includes a first stabilizing bracket and a second stabilizing bracket. One side of the first stabilizing bracket is welded to the upright plate, and the other side is fixed to the base plate. The second stabilizing bracket is welded to the upright plate, and the other side is fixed to the base plate, and is symmetrically arranged with the first stabilizing bracket.

3. The rotation limiting structure of the welding fixture for the longitudinal beam of a miniature truck as described in claim 1, characterized in that: The insertion device includes a limiting plate and an insertion block. The limiting plate is fixed to the top of the upright plate. The insertion block is slidably connected to the upright plate, the limiting plate and the rotating frame, and is located on the side of the upright plate near the rotating frame.

4. The rotation limiting structure of the welding fixture for the longitudinal beam of the miniature truck as described in claim 3, characterized in that: The insert has a rectangular groove and a limiting part, and the limiting part is symmetrically arranged.

5. The rotation limiting structure of the welding fixture for the longitudinal beam of the miniature truck as described in claim 3, characterized in that... : The limiting mechanism also includes a T-shaped threaded knob, which is threadedly connected to the limiting plate and passes through the limiting plate, with its bottom stepped end abutting against the top surface of the insert block.

Images