CN210306467U

CN210306467U - Positioning structure based on welding jig

Info

Publication number: CN210306467U
Application number: CN201921161394.3U
Authority: CN
Inventors: 石勤志
Original assignee: Changshu Chuangxin Welding Equipment Co ltd
Current assignee: Changshu Chuangxin Welding Equipment Co ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-04-14
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses a positioning structure based on welding jig, which relates to the technical field of welding jig, comprising a mounting seat, a deformation block and a linear driving mechanism, wherein the mounting seat is provided with a first channel which is communicated up and down, the deformation block is fixedly connected with the upper end of the mounting seat, the deformation block is provided with a second channel which is communicated up and down, the second channel is communicated with the first channel, the linear driving mechanism is fixedly connected with the lower end of the mounting seat, the output end of the linear driving mechanism is connected with a positioning block which extends into the second channel, when the linear driving mechanism pulls the positioning block to move downwards in the second channel of the deformation block, the deformation block expands outwards, thereby the first welding part and the second welding part which are positioned to the maximum extent are jointed, the best state required by welding is reached, when welding is completed, the linear driving mechanism pushes the positioning block to move upwards in the second channel of the deformation block, so that the deformation block is not stressed to shrink, at the moment, a certain gap is reserved between the welding piece and the welding piece positioned by the welding piece, and the welding piece is convenient to take out under the condition of not being tightly attached.

Description

Positioning structure based on welding jig

Technical Field

The utility model relates to a welding jig technical field, in particular to location structure based on welding jig is last.

Background

The welding fixture is used for ensuring the size of a weldment, improving the assembly precision and efficiency and preventing welding deformation, and after the weldment is fixed on the fixture, a welding gun is used for welding the specific position of the weldment according to the position of a welding seam on a drawing.

The existing positioning structure positions the first welding part through the positioning pin and the positioning surface, and welding deformation can be generated due to welding, so that the first welding part and the second welding part deform after being welded, and certain difficulty exists in taking the first welding part. If the positioning pin is fixed, the workpiece cannot be taken, so the positioning pin is pulled by the air cylinder to withdraw from a hole of the weldment; the positioning pin is long, deformation is serious, a cylinder with large cylinder diameter and stroke needs to be selected to completely withdraw from a weldment I, the cylinder is large in force, the distance capable of stretching back and forth is long, the requirement of pin withdrawal can be met, and cost is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a location structure based on welding jig is last, has not only reduced the use cost of cylinder, makes things convenient for the dress to get the piece, and can improve the condition that makes the weldment warp after the welding greatly.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a positioning structure based on a welding fixture comprises:

the mounting seat is provided with a first channel which is communicated up and down;

the deformation block is fixedly connected to the upper end of the mounting seat, a second channel which is communicated up and down is formed in the deformation block, and the second channel is communicated with the first channel;

the linear driving mechanism is fixedly connected to the lower end of the mounting seat, the output end of the linear driving mechanism is connected with a positioning block extending into the second channel, and the positioning block moves up and down in the deformation block through the drive of the linear driving mechanism, so that the deformation block is in an expansion or contraction state.

Preferably, the deformation block has elasticity and the appearance is the tube-shape narrow from bottom to top wide, the locating piece appearance is the round platform form narrow from bottom to top wide.

Preferably, a plurality of through grooves are formed in the deformation block along the circumferential direction of the height direction of the deformation block, one of the two adjacent through grooves penetrates through the upper end face of the deformation block, and the other through groove penetrates through the lower end face of the deformation block.

Preferably, the lateral wall of the lower end of the deformation block radially extends outwards to form a bearing block, a locking ring is sleeved on the outer peripheral side of the upper end of the mounting seat, and a pressing block used for pressing the bearing block on the upper end face of the mounting seat radially extends from the inner side of an opening in the upper end of the locking ring.

Preferably, a piston rod of the air cylinder penetrates through the first channel and is fixedly connected with a positioning block located in the second channel.

The utility model has the advantages as follows:

when the linear driving mechanism pulls the positioning block to move downwards in the second channel of the deformation block, the deformation block expands outwards, so that the positioned welding piece I and the positioned welding piece II are attached to the maximum extent, and the optimal state required by welding is achieved;

when welding is finished, the linear driving mechanism pushes the positioning block to move upwards in the second channel of the deformation block, so that the deformation block is not stressed to contract any more, a certain gap is formed between the deformation block and a first welding piece positioned by the deformation block, and the deformation block is convenient to take out under the condition of not being tightly attached;

the utility model provides a location weldment that location structure can be better, effectual improvement weldment warp, location structure releasable can be tight simultaneously for it is easier to get the piece of putting, and can improve the condition that makes the weldment warp after the welding greatly.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:

FIG. 1 is a schematic structural diagram of a positioning structure of a welding fixture according to the present application;

FIG. 2 is a first exploded view of FIG. 1;

fig. 3 is an exploded view of fig. 1.

In the figure: 10. a mounting seat; 20. a deformation block; 21. a second channel; 22. a through groove; 23. a pressure-bearing block; 30. a linear drive mechanism; 31. a piston rod; 40. positioning blocks; 50. welding a first workpiece; 60. welding a second workpiece; 70. a locking ring; 71. and (5) a compression block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Referring to fig. 1, 2 and 3, a positioning structure based on a welding fixture comprises a mounting seat 10, a deformation block 20 and a linear driving mechanism 30, wherein the mounting seat 10 is provided with a first channel which is vertically communicated, the deformation block 20 is fixedly connected to the upper end of the mounting seat 10, the deformation block 20 is provided with a second channel 21 which is vertically communicated, the second channel 21 is communicated with the first channel, the linear driving mechanism 30 is fixedly connected to the lower end of the mounting seat 10, the output end of the linear driving mechanism 30 is connected with a positioning block 40 which extends into the second channel 21, the positioning block 40 is driven by the linear driving mechanism 30 to move up and down in the deformation block 20 so as to enable the deformation block 20 to be in an expansion or contraction state, when in use, a first welding part 50 is sleeved on the peripheral side of the deformation block 20, a second welding part 60 is sleeved on the peripheral side of the first welding part 50, when the linear driving mechanism pulls the positioning block 30 to move down in the second channel 21 of, the deformation block 20 expands outwards, so that the first welding part 50 and the second welding part 60 which are positioned by the deformation block are attached to the maximum extent, the best state required by welding is achieved, when welding is completed, the linear driving mechanism 30 pushes the positioning block 30 to move upwards in the second channel 21 of the deformation block 20, the deformation block 20 is not stressed any more to shrink, a certain gap exists between the deformation block 20 and the first welding part 50 which is positioned by the deformation block, and the deformation block can be taken out conveniently under the condition of not being attached tightly.

Preferably, the linear driving mechanism 30 is a cylinder, and a piston rod 31 of the cylinder penetrates through the first channel to be fixedly connected with a positioning block 40 located in the second channel 21.

Referring to fig. 2 and 3, the deformation block 20 has an elastic shape having a cylindrical shape with a narrow bottom and a wide top, and the positioning block 40 has a circular truncated cone shape with a narrow bottom and a wide top, so that the deformation block 20 can be more easily expanded or contracted when the positioning block 40 moves up and down in the deformation block 20.

Referring to fig. 2 and 3, the deformation block 20 is provided with a plurality of through grooves 22 along the circumferential direction of the height direction, one of the two adjacent through grooves 22 penetrates through the upper end face of the deformation block 20, the other through groove 22 penetrates through the lower end face of the deformation block 20, and therefore the overall deformation effect of the deformation block 20 can be better through the through grooves 22.

Referring to fig. 2 and 3, a pressure-bearing block 23 radially extends outwards from the side wall of the lower end of the deformation block 20, a locking ring 70 is sleeved on the outer peripheral side of the upper end of the mounting seat 10, and a pressing block 71 used for pressing the pressure-bearing block 23 on the upper end surface of the mounting seat 10 radially extends from the inner side of an opening in the upper end of the locking ring 70.

The above description specifically describes the preferred embodiment of the present invention, but of course, the present invention can also adopt different forms from the above embodiments, and equivalent changes or corresponding modifications made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope of the present invention.

Claims

1. A location structure based on welding jig, its characterized in that includes:

the linear driving mechanism is fixedly connected to the lower end of the mounting seat;

the locating piece, the locating piece is fixed sharp actuating mechanism's output, and extend to in the second passageway of deformation piece, the profile is the regularity change from top to bottom, through the drive of sharp actuating mechanism the locating piece up-and-down motion in the second passageway to make the deformation piece be in expansion or contraction state.

2. The positioning structure based on the welding fixture as claimed in claim 1, wherein the deformation block is made of an elastic material and has a cylindrical shape with a narrow bottom and a wide top, and the positioning block has a circular truncated cone shape with a narrow bottom and a wide top.

3. The positioning structure based on the welding fixture of claim 2, wherein the deformation block is circumferentially provided with a plurality of through grooves along the height direction, and one of the two adjacent through grooves penetrates through the upper end surface of the deformation block, and the other through groove penetrates through the lower end surface of the deformation block.

4. The positioning structure based on the welding fixture is characterized in that a bearing block radially extends outwards from the side wall of the lower end of the deformation block, a locking ring is sleeved on the outer peripheral side of the upper end of the mounting seat, and a pressing block for pressing the bearing block on the upper end face of the mounting seat radially extends from the inner side of an opening in the upper end of the locking ring.

5. The positioning structure of any one of claims 1 to 4, wherein the linear driving mechanism is a cylinder, and a piston rod of the cylinder passes through the first channel and is fixedly connected to the positioning block located in the second channel.