CN217513727U

CN217513727U - Centering calibration fixture

Info

Publication number: CN217513727U
Application number: CN202221259588.9U
Authority: CN
Inventors: 周国臣; 李维; 赵天瑞
Original assignee: Fuaoxin Innovation Energy Battery Co ltd; Fawer Automotive Parts Co Ltd
Current assignee: Fuaoxin Innovation Energy Battery Co ltd; Fawer Automotive Parts Co Ltd
Priority date: 2022-05-23
Filing date: 2022-05-23
Publication date: 2022-09-30
Anticipated expiration: 2032-05-23

Abstract

The utility model provides a pair of centering calibration fixture relates to anchor clamps technical field to it is great to solve aluminum alloy battery box postweld dimensional deviation to a certain extent, leads to the difficult problem of guaranteeing of lug welding position degree of accuracy. The utility model provides a centering calibration clamp, which comprises a support rod, a pulling component, a first connecting rod, a first clamping arm, a second connecting rod and a second clamping arm; the pulling assembly is positioned in the center of the first end face of the supporting rod and is rotatably connected with the supporting rod, a positioning block is arranged on the second end face of the supporting rod, and the positioning block is abutted against the end wall of the frame of the box body; one end of the first connecting rod is rotatably connected with the first position of the wrenching assembly, one end of the second connecting rod is rotatably connected with the second position of the wrenching assembly, the other end of the first connecting rod is rotatably connected with one end of the first clamping arm, and the other end of the second connecting rod is rotatably connected with the second clamping arm; two ends of the supporting rod are respectively and rotatably connected with the first position of the first clamping arm and the first position of the second clamping arm.

Description

Centering calibration clamp

Technical Field

The utility model belongs to the technical field of the anchor clamps technique and specifically relates to a centering calibration anchor clamps is related to.

Background

When the aluminum alloy battery box body is processed, the lifting lugs and other small parts of structures need to be welded on the box body, but because the aluminum alloy texture is soft, the deformation of the box body is large when the aluminum alloy battery box body is welded, the size after welding is not easy to control, and the size deviation after welding of the box body assembly is large.

Because when welding lug and other smallclothes, need use the box center as the location benchmark, consequently, the box warp can cause the precision of welding position to be difficult for guaranteeing.

Therefore, it is desirable to provide a centering fixture to solve the problems of the prior art to some extent.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a centering calibration anchor clamps to it is great to solve aluminum alloy battery box and weld back dimensional deviation to a certain extent, leads to the difficult problem of guaranteeing of the lug welding position degree of accuracy.

The utility model provides a centering calibration clamp, which is used for centering and positioning with a box body and comprises a support rod, a pulling assembly, a first connecting rod, a first clamping arm, a second connecting rod and a second clamping arm; the pulling assembly is positioned in the center of the first end face of the supporting rod and is rotatably connected with the supporting rod, a positioning block is arranged on the second end face of the supporting rod, and the positioning block is abutted to the end wall of the frame of the box body; one end of the first connecting rod is rotatably connected with a first position of the wrenching assembly, one end of the second connecting rod is rotatably connected with a second position of the wrenching assembly, the other end of the first connecting rod is rotatably connected with one end of the first clamping arm, and the other end of the second connecting rod is rotatably connected with the second clamping arm; one end of the supporting rod is rotatably connected with the first position of the first clamping arm, and the other end of the supporting rod is rotatably connected with the first position of the second clamping arm.

The centering calibration fixture provided by the utility model also comprises a first reset component and a second reset component; one end of the first resetting component is connected with the support rod, and the other end of the first resetting component is rotatably connected with the position, close to the first connecting rod, of the first clamping arm; one end of the second resetting component is connected with the supporting rod, and the other end of the second resetting component is rotatably connected with the position, close to the second connecting rod, of the second clamping arm.

Specifically, the first resetting assembly comprises a first elastic piece, a first positioning seat and a first connecting block, and the second resetting assembly comprises a second elastic piece, a second positioning seat and a second connecting block; the first positioning seat is connected with the first end face of the supporting rod, one end of the first elastic piece is connected with the first positioning seat, the other end of the first elastic piece is connected with the first connecting block, and the first connecting block is rotatably connected with the first clamping arm; the second positioning seat is connected with the first end face of the supporting rod, one end of the second elastic piece is connected with the first positioning seat, the other end of the second elastic piece is connected with the second connecting block, and the second connecting block is rotatably connected with the second clamping arm.

Furthermore, a first supporting block and a second supporting block are respectively arranged at two ends of the supporting rod; the first support block is rotatably connected with a first position of the first clamping arm, and a connecting position of the first connecting block and the first clamping arm is located between a connecting position of the first support block and the first clamping arm and a connecting position of the first connecting rod and the first clamping arm; the second supporting block is rotatably connected with the first position of the second clamping arm, and the connection position of the second connecting block and the second clamping arm is located between the connection position of the second supporting block and the second clamping arm and the connection position of the second connecting rod and the second clamping arm.

One end, far away from the first connecting rod, of the first clamping arm is connected with a first buffering piece, and one end, far away from the second connecting rod, of the second clamping arm is connected with a second buffering piece.

The central position of the first end face of the supporting rod is provided with a mounting seat, the third position of the pulling assembly is rotatably connected with the mounting seat, and the first position and the second position of the pulling assembly are located on two sides of the third position.

Specifically, the pulling assembly comprises a handle, a clamping piece assembly, a connecting shaft, a first positioning piece and a second positioning piece; the clamping piece assembly is provided with a clamping space, one end of the first connecting rod is arranged in the clamping space, the handle is positioned outside the clamping space, the first connecting rod is rotatably connected with the clamping piece assembly through the first positioning piece, and the handle is connected with the clamping piece assembly through the first positioning piece; one end of the second connecting rod is arranged in the clamping space and is rotatably connected with the other end of the clamping piece assembly through the second positioning piece; the connecting axle with the mount pad is connected, the one end of connecting axle is passed the clamping piece subassembly with the handle, just the clamping piece subassembly with the handle with the connecting axle rotates to be connected, first connecting rod with the second connecting rod with the link of clamping piece subassembly is located respectively the both sides of connecting axle.

Furthermore, the mounting seat comprises a first mounting part and a second mounting part, the first mounting part and the second mounting part are arranged at intervals, and the pulling assembly is arranged between the first mounting part and the second mounting part; the clip assembly includes a first clip and a second clip, and the first clip is connected with the handle.

The positioning block comprises a first positioning block and a second positioning block, the first positioning block and the second positioning block are arranged at intervals, and the distance between the first positioning block and the first clamping arm is the same as the distance between the second positioning block and the second clamping arm.

Specifically, alignment grooves are formed in the first positioning block and the second positioning block and used for aligning the alignment calibration fixture with the box body and then calibrating the to-be-welded part.

Compared with the prior art, the utility model provides a centering calibration anchor clamps has following advantage:

the utility model provides a centering calibration clamp, which is used for centering and positioning with a box body and comprises a support rod, a pulling component, a first connecting rod, a first clamping arm, a second connecting rod and a second clamping arm; the turning assembly is positioned in the center of the first end face of the supporting rod and is rotatably connected with the supporting rod, a positioning block is arranged on the second end face of the supporting rod, and the positioning block is abutted against the end wall of the frame of the box body; one end of the first connecting rod is rotatably connected with the first position of the wrenching assembly, one end of the second connecting rod is rotatably connected with the second position of the wrenching assembly, the other end of the first connecting rod is rotatably connected with one end of the first clamping arm, and the other end of the second connecting rod is rotatably connected with the second clamping arm; one end of the supporting rod is rotatably connected with the first position of the first clamping arm, and the other end of the supporting rod is rotatably connected with the first position of the second clamping arm.

From this analysis can know, can laminate mutually with the box through branch, through the pulling subassembly that the central point at the first terminal surface of branch put the setting, the one end of first connecting rod rotates with the first position of pulling the subassembly to be connected, the one end of second connecting rod rotates with the second position of pulling the subassembly to be connected, and pull the subassembly and rotate with branch and be connected, the one end of first clamp arm rotates with the one end of first connecting rod to be connected, the first position of first clamp arm rotates with the one end of branch to be connected, the one end of second clamp arm rotates with the one end of second connecting rod to be connected, the first position of second clamp arm rotates with the other end of branch to be connected, consequently, when the relative branch of operation movable assembly rotates, can drive first connecting rod and second connecting rod action, thereby can stimulate first clamp arm and second clamp arm and open.

And the second end surface of the support rod is provided with a positioning block which can be abutted against the end wall of the frame of the box body. Therefore, when the positioning device is used, the first clamping arm and the second clamping arm are firstly opened, and then the support rod is placed above the frame of the box body, so that the positioning block can be abutted against the end wall of the frame of the box body. And then, operating the pulling assembly again to enable the pulling assembly to return, so that the first connecting rod and the second connecting rod can be driven to return, and the first clamping arm and the second clamping arm can be tightened. The first clamping arm and the second clamping arm which are gradually tightened can be abutted against the side wall of the frame of the box body, so that the center of the centering calibration fixture can coincide with the center of the box body, and the position of the positioning block relative to the end wall of the frame is the position where a to-be-welded part is welded with the frame.

Therefore, through the centering calibration fixture provided by the application, the welding position of the to-be-welded part relative to the frame of the box body can be quickly determined, and the precision of the welding position required by the to-be-welded part can be improved to a certain extent.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of a first view angle of a centering calibration fixture according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a partial enlarged view of a pulling assembly in the centering fixture according to an embodiment of the present invention.

In the figure: 1-a strut; 101-a mounting seat; 1011-a first mounting part; 1012-second mounting portion; 102-a positioning block; 1021-alignment slot; 103-a first support block; 104-a second support block; 105-a first end face; 106-a second end face; 2-a first link; 3-a second link; 4-a first clamping arm; 401-a first buffer; 5-a second clamping arm; 501-a second buffer; 6-pulling the assembly; 601-a handle; 602-a first clip; 603-a second jaw; 604-a first locator; 605-a second positioning element; 606-a connecting shaft; 7-a first reset component; 701-a first elastic member; 702-a first locator base; 703-a first connection block; 8-a second reduction assembly; 801-a second elastic member; 802-second positioning seat; 803-second connection block.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present application without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience of description and simplification of the description, but do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.

For ease of description, spatial relationship terms such as "above … …", "upper", "below … …" and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.

Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.

The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of this application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.

Example 1

As shown in fig. 1-3, the utility model provides a centering calibration fixture for centering and positioning with a box, comprising a support rod 1, a pulling component 6, a first connecting rod 2, a first clamping arm 4, a second connecting rod 3 and a second clamping arm 5; the wrenching assembly 6 is positioned at the center of the first end surface 105 of the support rod 1 and is rotatably connected with the support rod 1, a positioning block 102 is arranged on the second end surface 106 of the support rod 1, and the positioning block 102 is abutted with the end wall of the frame of the box body; one end of the first connecting rod 2 is rotatably connected with a first position of the pulling assembly 6, one end of the second connecting rod 3 is rotatably connected with a second position of the pulling assembly 6, the other end of the first connecting rod 2 is rotatably connected with one end of the first clamping arm 4, and the other end of the second connecting rod 3 is rotatably connected with the second clamping arm 5; one end of the supporting rod 1 is rotatably connected with the first position of the first clamping arm 4, and the other end of the supporting rod 1 is rotatably connected with the first position of the second clamping arm 5.

the centering calibration fixture provided by the utility model can be attached to the box body through the supporting rod 1, one end of the first connecting rod 2 is rotatably connected with the first position of the pulling component 6 through the pulling component 6 arranged at the central position of the first end surface 105 of the supporting rod 1, one end of the second connecting rod 3 is rotatably connected with the second position of the pulling component 6, the pulling component 6 is rotatably connected with the supporting rod 1, one end of the first clamping arm 4 is rotatably connected with one end of the first connecting rod 2, the first position of the first clamping arm 4 is rotatably connected with one end of the supporting rod 1, one end of the second clamping arm 5 is rotatably connected with one end of the second connecting rod 3, the first position of the second clamping arm 5 is rotatably connected with the other end of the supporting rod 1, therefore, when the operation pulling assembly 6 rotates relative to the supporting rod 1, the first connecting rod 2 and the second connecting rod 3 can be driven to move, so that the first clamping arm 4 and the second clamping arm 5 can be pulled to be opened.

The second end 106 of the support rod 1 is provided with the positioning block 102, and the positioning block 102 can be abutted against the end wall of the frame of the box body. Therefore, when in use, the first clamping arm 4 and the second clamping arm 5 are firstly opened, and then the support rod 1 is placed above the frame of the box body, so that the positioning block 102 can be abutted against the end wall of the frame of the box body. And then, operating the pulling assembly 6 again to return the pulling assembly 6, so that the first connecting rod 2 and the second connecting rod 3 can be driven to return, and the first clamping arm 4 and the second clamping arm 5 can be tightened. The first clamping arm 4 and the second clamping arm 5 which are gradually tightened can be abutted against the side wall of the frame of the box body, so that the center of the centering calibration fixture can be coincided with the center of the box body, and the position of the positioning block 102 relative to the end wall of the frame is the position where a part to be welded is welded with the frame.

Therefore, through the centering calibration fixture provided by the application, the welding position of the to-be-welded part relative to the frame of the box body can be quickly determined, and the precision of the required welding position of the to-be-welded part can be improved to a certain extent.

In the present embodiment, the rotation of the pulling assembly 6 is performed manually, and in the initial state, the pulling assembly 6 is disposed perpendicular to the pole 1.

When the first clamping arm 4 and the second clamping arm 5 are required to be opened to enable the centering calibration clamp to be in contact with the box body, an operator operates the pulling assembly 6 to realize the opening of the first clamping arm 4 and the second clamping arm 5 through the actions of the first connecting rod 2 and the second connecting rod 3.

When the first clamping arm 4 and the second clamping arm 5 are required to be contracted to abut against the side wall of the corresponding frame of the box body, the operating personnel pulls the pulling assembly 6 to be in a vertical state, so that the alignment with the center of the box body is realized.

It should be added here that the box body in the present application has a rectangular structure, and therefore, the frame of the box body is also a rectangular frame. The end wall of the frame is the upper end surface of the two shorter sides of the frame, and the two shorter sides are actually the front end and the rear end of the frame, so the position where the positioning block 102 abuts against the frame is called the end wall.

Accordingly, the side walls are the outer side walls of the two longer sides of the frame, and the two longer sides are actually the left and right sides of the frame, so that the positions where the first clamping arm 4 and the second clamping arm 5 abut against the frame are the side walls.

It should be further added that, in the present embodiment, the position where the first link 2 is connected to the pulling assembly 6 is the first position, the position where the second link 3 is connected to the pulling assembly 6 is the second position, and the level of the first position is higher than that of the second position, that is, the second position is closer to the supporting rod 1. Taking the structural state shown in the perspective view of fig. 1 as an example, when the first clamping arm 4 and the second clamping arm 5 need to be opened, the pulling assembly 6 is rotated to the left side, and when the first clamping arm 4 and the second clamping arm 5 need to be tightened, the pulling assembly 6 is rotated to the right side to the vertical direction.

It will be appreciated that when the level of the first position is higher than the level of the second position, i.e. the first position is closer to the strut 1, the opening of the first and second

gripping arms

4 and 5 requires the pulling assembly 6 to be rotated to the right and to the left to the vertical when tightened.

In the first embodiment, the pulling assembly 6 can be directly rotatably connected to the supporting rod 1, and in order to ensure that the first connecting rod 2 and the second connecting rod 3 have sufficient installation space and operation space, as shown in fig. 1, the mounting seat 101 is disposed at the center of the first end surface 105 of the supporting rod 1, the third position of the pulling assembly 6 is rotatably connected to the mounting seat 101, and the first position and the second position of the pulling assembly 6 are located at two sides of the third position.

During operation, the box body is correspondingly provided with centering and calibrating clamps on two sides in the length direction, and the positioning blocks 102 in the centering and calibrating clamps which are arranged oppositely are positioned on one side which deviates from each other, i.e. the first end face 105 of the strut 1 in the application is the upper end face of the strut 1, and the second end face 106 is the side end face of the strut 1 in one of the centering and calibrating clamps which deviates from the strut 1 in the other centering and calibrating clamp. Therefore, the stay 1 can be brought into contact with the wall surfaces on both the left and right sides of the frame, and the positioning block 102 provided on the stay 1 can be brought into contact with the wall surface on the front end or the rear end of the frame.

And because the centering calibration anchor clamps that this application provided need realize centering calibration anchor clamps's center and the coincidence of the center of box through pressing from both sides. Therefore, the installation seat 101 is arranged at the center of the first end surface 105 of the strut 1, so that on one hand, sufficient space can be provided for connection and arrangement of the first connecting rod 2 and the second connecting rod 3, and on the other hand, accurate alignment of the clamp center and the box body center can be realized.

When the mounting seat 101 is arranged on the supporting rod 1, the third position of the pulling assembly 6 is located between the first position and the second position, and the third position of the pulling assembly 6 is rotatably connected with the mounting seat 101. Alternatively, the rotational connection between the pulling member 6 and the mounting base 101 can be realized by a rotating shaft or the like, and in this embodiment, the pulling member 6 can be a pulling rod.

Example 2

As shown in fig. 1-3, based on the above structure, the present invention further optimizes the structure of the centering and calibrating fixture, wherein, in the present embodiment, the centering and calibrating fixture further comprises a first reset component 7 and a second reset component 8; one end of the first resetting component 7 is connected with the support rod 1, and the other end of the first resetting component is rotatably connected with the position, close to the first connecting rod 2, of the first clamping arm 4; one end of the second resetting component 8 is connected with the supporting rod 1, and the other end of the second resetting component is rotatably connected with the position, close to the second connecting rod 3, of the second clamping arm 5.

It is understood that the first and second reset assemblies 7 and 8 are structures capable of achieving self-return of the first and

second clamp arms

4 and 5, and may be resilient bars, rods or strips made of resilient rubber rods or rubber bands or other materials.

In the application, the connection position of the first reset component 7 and the first clamping arm 4 is located between one end of the strut 1 at the connection position of the first connecting rod 2 and the first clamping arm 4 and the connection position of the first clamping arm 4, and the connection position of the second reset component 8 and the second clamping arm 5 is located between the other end of the strut 1 at the connection position of the second connecting rod 3 and the second clamping arm 5 and the connection position of the second clamping arm 5, so that when the first clamping arm 4 and the second clamping arm 5 are relatively opened, the first reset component 7 and the second reset component 8 can be stretched to obtain restoring force. When the operator releases the pulling assembly 6, the first resetting assembly 7 and the second resetting assembly 8 retract, so that the first clamping arm 4 and the second clamping arm 5 are pulled to be tightened, the automatic return function is realized, and the clamping capacity can be improved to a certain degree.

Optionally, as shown in fig. 1 and fig. 2, in the present application, the first restoring assembly 7 includes a first elastic member 701, a first positioning seat 702, and a first connecting block 703, and the second restoring assembly 8 includes a second elastic member 801, a second positioning seat 802, and a second connecting block 803; the first positioning seat 702 is connected with the first end face 105 of the supporting rod 1, one end of the first elastic piece 701 is connected with the first positioning seat 702, the other end of the first elastic piece 701 is connected with the first connecting block 703, and the first connecting block 703 is rotatably connected with the first clamping arm 4; the second positioning seat 802 is connected to the first end face 105 of the supporting rod 1, one end of the second elastic element 801 is connected to the first positioning seat 702, the other end is connected to the second connecting block 803, and the second connecting block 803 is rotatably connected to the second clamping arm 5.

Preferably, as shown in fig. 1, the first elastic member 701 and the second elastic member 801 in this application are springs, and the process of achieving automatic returning is consistent with the above process, and is not described again, but it should be noted that in this scheme, the first positioning seat 702 and the first connecting block 703 can enable the first elastic member 701 to be stably installed, and the second positioning seat 802 and the second connecting block 803 can enable the second elastic member 801 to be stably installed, and the springs shown in fig. 1 may also be replaced by the above elastic rod, rod and belt structures made of rubber rods, rubber belts or other materials.

Alternatively, in the above two embodiments, as shown in fig. 1-3, the two ends of the strut 1 are respectively provided with a first supporting block 103 and a second supporting block 104; the first support block 103 is rotatably connected with a first position of the first clamping arm 4, and a connecting position of the first connecting block 703 and the first clamping arm 4 is located between a connecting position of the first support block 103 and the first clamping arm 4 and a connecting position of the first connecting rod 2 and the first clamping arm 4; the second supporting block 104 is rotatably connected to the first position of the second clamping arm 5, and the connection position of the second connecting block 803 to the second clamping arm 5 is located between the connection position of the second supporting block 104 to the second clamping arm 5 and the connection position of the second connecting rod 3 to the second clamping arm 5.

The first support block 103 and the second support block 104 can realize more stable contact between the strut 1 and the upper end surface of the box body, and the first support block 103 and the second support block 104 can also realize stable connection with the corresponding first clamping arm 4 and the second clamping arm 5.

It should be added here that, in the above description, the rotational connection of the first clamping arm 4 with the first connecting rod 2, the first connecting block 703 and the first supporting block 103, and the rotational connection of the second clamping arm 5 with the second connecting rod 3, the second connecting block 803 and the second supporting block 104 can be implemented by using pins.

Preferably, as shown in fig. 1, in the above embodiment, a first cushion 401 is connected to an end of the first clamp arm 4 away from the first link 2, and a second cushion 501 is connected to an end of the second clamp arm 5 away from the second link 3.

The first buffer member 401 and the second buffer member 501 are buffer wheels, and can rotate relative to the first clamping arm 4 and the second clamping arm 5, and the outer side of each buffer wheel can be coated with a soft material, so that the risk of damage to the outer wall surface of the frame when the first clamping arm 4 and the second clamping arm 5 clamp the frame can be reduced to a certain extent.

Optionally, as shown in fig. 1 in conjunction with fig. 3, the wrench assembly 6 in the present application includes a handle 601, a clip assembly, a connecting shaft 606, a first positioning member 604, and a second positioning member 605; the clamping piece assembly is provided with a clamping space, one end of the first connecting rod 2 is arranged in the clamping space, the handle 601 is positioned outside the clamping space, the first connecting rod 2 is rotatably connected with the clamping piece assembly through the first positioning piece 604, and the handle 601 is connected with the clamping piece assembly through the first positioning piece 604; one end of the second connecting rod 3 is disposed in the clamping space and is rotatably connected to the other end of the clamping piece assembly through a second positioning member 605; the connecting shaft 606 is connected with the mounting seat 101, one end of the connecting shaft 606 penetrates through the clamping piece assembly and the handle 601, the clamping piece assembly and the handle 601 are rotatably connected with the connecting shaft 606, and the connecting ends of the first connecting rod 2 and the second connecting rod 3 and the clamping piece assembly are respectively located on two sides of the connecting shaft 606.

Through the centre gripping space that the clamping piece subassembly formed, can provide stable installation space for first connecting rod 2 and second connecting rod 3 on the one hand, on the other hand, can be convenient for realize pulling the relative rotation between subassembly 6 and first connecting rod 2 and the second connecting rod 3.

Preferably, as shown in fig. 1 in conjunction with fig. 3, in the present application, the mounting base 101 includes a first mounting portion 1011 and a second mounting portion 1012, the first mounting portion 1011 and the second mounting portion 1012 are disposed at an interval, the pulling assembly 6 is disposed between the first mounting portion 1011 and the second mounting portion 1012, and the pulling assembly 6 can be stably mounted through the first mounting portion 1011 and the second mounting portion 1012. And the clamping piece subassembly includes first clamping piece 602 and second clamping piece 603 in this application, and when the installation, first clamping piece 602 is connected and relative position is fixed with handle 601, and when rotating handle 601 promptly, first clamping piece 602 rotates along with handle 601 to can drive second clamping piece 603 and rotate, and then realize the action with first connecting rod 2 and the second connecting rod 3 that the clamping piece subassembly rotates and is connected.

One end of the connecting shaft 606 in this application sequentially passes through the first mounting portion 1011, the second clamping piece 603, the first clamping piece 602, the handle 601 and the second mounting portion 1012, so as to realize the rotational connection between the handle 601 and the clamping piece assembly and the mounting base 101.

Preferably, in the present application, the connecting shaft 606 is fixedly connected to the mounting base 101, and a bearing is sleeved on the connecting shaft 606 at a position between the first mounting portion 1011 and the second mounting portion 1012, so that the rotation of the first clamping piece 602, the second clamping piece 603 and the handle 601 relative to the connecting shaft 606 can be realized through the bearing.

In the above embodiment, as shown in fig. 1, the positioning block 102 in the present application includes the first positioning block 102 and the second positioning block 102, the first positioning block 102 and the second positioning block 102 are disposed at an interval, and a distance between the first positioning block 102 and the first clamp arm 4 is the same as a distance between the second positioning block 102 and the second clamp arm 5.

Because when welding, take welding lug as an example, one side on the box generally need weld two at least lugs to make the both sides of box can correspond four lugs of welding, and then the balance when realizing box structure hoist and mount. Therefore, the first positioning block 102 and the second positioning block 102 arranged on the support rod 1 can provide accurate welding positions for the two lifting lugs on one side.

During welding, the lifting lug is aligned with the first positioning block 102 and the second positioning block 102, spot welding is firstly carried out, the lifting lug is connected with the box body, then the centering and calibrating fixture is detached, and stable connection of the lifting lug and the box body is achieved through comprehensive welding.

Because the distance between first locating piece 102 and first clamping arm 4 equals the distance between second locating piece 102 and the second clamping arm 5 in this application, consequently, the distance of lug and the lateral wall of the left and right sides after the welding is the same to can guarantee hoist and mount balance to a certain extent.

Preferably, as shown in fig. 1, in the present application, alignment grooves 1021 are formed in both the first positioning block 102 and the second positioning block 102, and the alignment grooves 1021 are used for aligning the alignment fixture with the box body and then aligning the to-be-welded component.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A centering calibration clamp is used for centering and positioning with a box body and is characterized by comprising a support rod, a pulling assembly, a first connecting rod, a first clamping arm, a second connecting rod and a second clamping arm;

the pulling assembly is positioned in the center of the first end face of the supporting rod and is rotatably connected with the supporting rod, a positioning block is arranged on the second end face of the supporting rod, and the positioning block is abutted to the end wall of the frame of the box body; one end of the first connecting rod is rotatably connected with a first position of the wrenching assembly, one end of the second connecting rod is rotatably connected with a second position of the wrenching assembly, the other end of the first connecting rod is rotatably connected with one end of the first clamping arm, and the other end of the second connecting rod is rotatably connected with the second clamping arm;

one end of the supporting rod is rotatably connected with the first position of the first clamping arm, and the other end of the supporting rod is rotatably connected with the first position of the second clamping arm.

2. The centering calibration fixture of claim 1, further comprising a first reduction assembly and a second reduction assembly;

one end of the first resetting component is connected with the support rod, and the other end of the first resetting component is rotatably connected with the position, close to the first connecting rod, of the first clamping arm;

one end of the second resetting component is connected with the supporting rod, and the other end of the second resetting component is rotatably connected with the position, close to the second connecting rod, of the second clamping arm.

3. The centering and aligning fixture of claim 2, wherein said first reset assembly comprises a first elastic member, a first positioning seat and a first connecting block, and said second reset assembly comprises a second elastic member, a second positioning seat and a second connecting block;

the first positioning seat is connected with the first end face of the supporting rod, one end of the first elastic piece is connected with the first positioning seat, the other end of the first elastic piece is connected with the first connecting block, and the first connecting block is rotatably connected with the first clamping arm;

the second positioning seat is connected with the first end face of the supporting rod, one end of the second elastic piece is connected with the first positioning seat, the other end of the second elastic piece is connected with the second connecting block, and the second connecting block is rotatably connected with the second clamping arm.

4. The centering and calibrating fixture according to claim 3, wherein the two ends of the supporting rod are respectively provided with a first supporting block and a second supporting block;

the first support block is rotatably connected with a first position of the first clamping arm, and a connecting position of the first connecting block and the first clamping arm is located between a connecting position of the first support block and the first clamping arm and a connecting position of the first connecting rod and the first clamping arm;

the second supporting block is rotatably connected with the first position of the second clamping arm, and the connecting position of the second connecting block and the second clamping arm is located between the connecting position of the second supporting block and the second clamping arm and the connecting position of the second connecting rod and the second clamping arm.

5. The centering alignment fixture of claim 1, wherein a first bumper is attached to an end of said first clamping arm distal from said first link, and a second bumper is attached to an end of said second clamping arm distal from said second link.

6. The centering and calibrating clamp according to claim 1, wherein a mounting seat is provided at a central position of the first end surface of the supporting rod, the third position of the pulling assembly is rotatably connected with the mounting seat, and the first position and the second position of the pulling assembly are located at two sides of the third position.

7. The centering alignment fixture of claim 6, wherein said pulling assembly comprises a handle, a clip assembly, a connecting shaft, a first positioning member, and a second positioning member;

the clamping piece assembly is provided with a clamping space, one end of the first connecting rod is arranged in the clamping space, the handle is positioned outside the clamping space, the first connecting rod is rotatably connected with the clamping piece assembly through the first positioning piece, and the handle is connected with the clamping piece assembly through the first positioning piece;

one end of the second connecting rod is arranged in the clamping space and is rotatably connected with the other end of the clamping piece assembly through the second positioning piece;

the connecting axle with the mount pad is connected, the one end of connecting axle is passed the clamping piece subassembly with the handle, just the clamping piece subassembly with the handle with the connecting axle rotates to be connected, first connecting rod with the second connecting rod with the link of clamping piece subassembly is located respectively the both sides of connecting axle.

8. The centering alignment fixture of claim 7, wherein said mounting base includes a first mounting portion and a second mounting portion, said first mounting portion and said second mounting portion being spaced apart, said toggle assembly being disposed between said first mounting portion and said second mounting portion;

the clip assembly includes a first clip and a second clip, and the first clip is connected with the handle.

9. The centering alignment fixture of claim 1, wherein said positioning block comprises a first positioning block and a second positioning block, said first positioning block and said second positioning block are spaced apart, and the distance between said first positioning block and said first clamping arm is the same as the distance between said second positioning block and said second clamping arm.

10. The centering and calibrating fixture of claim 9, wherein the first positioning block and the second positioning block are both provided with alignment grooves, and the alignment grooves are used for calibrating the to-be-welded member after the centering and calibrating fixture is centered with the box body.