CN211539896U

CN211539896U - Novel part spot welding device

Info

Publication number: CN211539896U
Application number: CN201922308376.XU
Authority: CN
Inventors: 李长友
Original assignee: Shenyang Shenyu Auto Parts Co ltd
Current assignee: Shenyang Shenyu Auto Parts Co ltd
Priority date: 2019-12-20
Filing date: 2019-12-20
Publication date: 2020-09-22
Anticipated expiration: 2029-12-20

Abstract

The utility model relates to a welding device, in particular to a novel spot welding device for parts, wherein a fixed platform is arranged on the top surface of a bottom plate, a linear track is arranged on the top surface of the bottom plate, one end of the linear track faces the fixed platform, a movable platform is arranged on a slide rail in a sliding way, a position-adjustable stopper is arranged on the slide rail, and the stopper is used for limiting the limit moving position of a brake platform; the top surface of the supporting plate is fixedly connected to the tail end of the movable arm, the bottom surface of the supporting plate is a plane, the electrode column is vertically arranged at the center of the lower surface of the supporting plate, and the elastic pressing pieces are arranged around the electrode column at equal intervals; the sleeve pipe is vertically connected to the bottom surface of the supporting plate, the sliding column is inserted into the sleeve pipe, the contact element is installed at the lower end of the sliding column and is arranged outside the sleeve pipe, the elastic element is arranged in the sleeve pipe and connected with the upper end of the sliding column and the supporting plate, and the spot welding device can avoid the phenomenon that the main extension surface of a welded stamping part has an excessively high height difference.

Description

Novel part spot welding device

Technical Field

The utility model relates to a welding equipment, especially spot welding equipment of punching press dull and stereotyped piece.

Background

Spot welding is a welding method in which a columnar electrode is used to form a welding spot between the contact surfaces of two overlapping workpieces during welding. During spot welding, the workpiece is pressed to be in close contact with the workpiece, then current is switched on, the contact position of the workpiece is melted under the action of resistance heat, and a welding spot is formed after cooling. The spot welding is mainly used for welding sheet component stamping parts with the thickness of less than 4mm, and is particularly suitable for welding automobile bodies, carriages and airplane fuselages. But not welded with the container required for sealing.

In the prior art, spot welding equipment aligns two stamped parts to be welded through a limiting device to form a welding line, a movable arm of the welding equipment moves to a welding position to discharge through a motor column, so that the two stamped parts are welded, but the spot welding equipment can only realize simple welding, the parallel and level degree of the extension surfaces of the stamped parts cannot be guaranteed, the height difference of a welding plane in subsequent detection exceeds 0.2mm, and the requirement of high precision is not met.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, the utility model provides a novel part spot welding device, too high difference in height appears in its main extension face that can avoid the stamping workpiece after the welding.

In order to achieve the above object, the utility model adopts the following technical scheme:

a novel part spot welding device comprises a bottom plate, a linear rail, a fixed platform, a movable platform and a spot welding assembly, wherein the fixed platform is arranged on the top surface of the bottom plate, the linear rail is arranged on the top surface of the bottom plate, one end of the linear rail faces the fixed platform, the movable platform is slidably arranged on a slide rail, a position-adjustable limiting block is arranged on the slide rail and used for limiting the limit moving position of the brake platform, and two stamping parts to be welded are respectively arranged on the fixed platform and the movable platform; the spot welding assembly comprises a movable arm, a supporting plate, an electrode column and a plurality of elastic pressing pieces, wherein the top surface of the supporting plate is fixedly connected to the tail end of the movable arm, the bottom surface of the supporting plate is a plane, the electrode column is vertically arranged at the center of the lower surface of the supporting plate, and the elastic pressing pieces are arranged around the electrode column at equal intervals; the elastic pressing piece comprises a sleeve, a sliding column, a contact piece and an elastic piece, wherein the sleeve is vertically connected to the bottom surface of the supporting plate, the sliding column is inserted into the sleeve, the contact piece is installed at the lower end of the sliding column and placed outside the sleeve, and the elastic piece is placed in the sleeve and connected with the upper end of the sliding column and the supporting plate.

Preferably, in the compression limit state of the elastic pressing member, the lower surface position of the contact member is lower than the lower end position of the electrode column, and the height difference between the lower surface position and the lower end position is the spot welding distance.

Preferably, the lower surface of the contact is a plane having a certain extended area.

Preferably, the contact member is a rubber block.

Preferably, the elastic member is a spring.

Preferably, the supporting plate is a rectangular flat plate, the number of the elastic pressing pieces is four, and the four elastic pressing pieces are respectively arranged at the corners of the lower surface of the supporting plate.

Preferably, the movable platform and the fixed platform are both provided with a rectangular caliper which is used for limiting the horizontal position of the workpiece to be stamped.

Preferably, the part of the right angle caliper bearing stamping part is of a flat plate structure.

Use the utility model discloses a beneficial effect is:

the device can place stamping parts to be welded on the movable platform and the fixed platform respectively through the matching of the movable platform and the fixed platform, and when the movable platform and the fixed platform are relatively closed, the parts to be welded of the two stamping parts are aligned and form the mutual leaning effect of the edges to be welded. In the process that the spot welding assembly moves to be in place, the elastic pressing piece can flatten the stamped plate to be welded to enable the height of the stamped plate to be aligned with the height of the electrode column, and meanwhile, the elastic pressing piece can also play a role in limiting the height of the electrode column, so that the phenomenon that the electrode column is adhered to the stamped plate after welding due to the fact that the distance between the stamped plate and the electrode column is too short.

Drawings

Fig. 1 is the structure schematic diagram of the novel part spot welding device of the utility model.

Fig. 2 is the utility model discloses the spot welding subassembly structure sketch map in the spot welding device of part.

Fig. 3 is a schematic structural diagram of another state of the spot welding assembly in the spot welding device for parts according to the present invention.

Fig. 4 is the position schematic diagram of the spot welding assembly elastic pressing member in the spot welding device for parts of the present invention.

The reference numerals include:

10-bottom plate, 11-linear track, 12-limiting block, 20-fixed platform, 30-movable platform, 40-spot welding assembly, 41-movable arm, 42-supporting plate, 43-electrode column, 44-elastic pressing piece, 441-sleeve, 442-sliding column, 443-contact piece, 444-elastic piece, 50-stamping plate and 60-rectangular caliper.

Detailed Description

In order to make the purpose, technical solution and advantages of the present technical solution more clear, the present technical solution is further described in detail below with reference to specific embodiments. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present teachings.

As shown in fig. 1-4, the novel spot welding device for parts provided by this embodiment includes a bottom plate 10, a linear rail 11, a fixed platform 20, a movable platform 30 and a spot welding assembly 40, wherein the fixed platform 20 is disposed on the top surface of the bottom plate 10, the linear rail 11 is disposed on the top surface of the bottom plate 10, one end of the linear rail faces the fixed platform 20, the movable platform 30 is slidably disposed on a slide rail, a position-adjustable limiting block 12 is disposed on the slide rail, the limiting block 12 is used for limiting the extreme moving position of the movable platform 30, and two stamping parts to be welded are disposed on the fixed platform 20 and the movable platform 30 respectively; the spot welding assembly 40 comprises a movable arm 41, a supporting plate 42, an electrode column 43 and a plurality of elastic pressing members 44, wherein the top surface of the supporting plate 42 is fixedly connected to the tail end of the movable arm 41, the bottom surface of the supporting plate 42 is a plane, the electrode column 43 is vertically arranged at the central position of the lower surface of the supporting plate 42, and the elastic pressing members 44 are equidistantly arranged around the electrode column 43; the elastic pressing member 44 includes a sleeve 441 vertically coupled to the bottom surface of the supporting plate 42, a sliding post 442 inserted into the sleeve 441, a contact 443 mounted on the lower end of the sliding post 442 and disposed outside the sleeve 441, and an elastic member 444 disposed inside the sleeve 441 and coupling the upper end of the sliding post 442 and the supporting plate 42.

As shown in fig. 2, the resilient compression member 44 is shown in a non-compressed state. As shown in fig. 3, in the compression limit state of the elastic pressing member 44, the lower surface position of the contact 443 is lower than the lower end position of the electrode column 43, and the height difference between the two is the spot welding distance. The elastic pressing piece 44 can also limit the height of the electrode column 43, and avoid the phenomenon that the electrode column 43 is adhered to the punched plate 50 after welding due to the fact that the punched plate 50 is too close to the electrode column 43.

The lower surface of the contact 443 is a plane having a certain extended area. The pressing force of the contact 443 against the punch plate 50 is prevented from shaping the punch plate 50. Preferably, the contact 443 is a rubber block.

The resilient member 444 is a spring, and preferably, the mating surfaces of the sleeve 441 and the sliding column 442 are in interference fit, and in the case of proper clearance, the air pressure in the cavity inside the sleeve 441 can also act like a spring.

In the present embodiment, the supporting plate 42 is a rectangular flat plate, four elastic pressing members 44 are provided, and the four elastic pressing members 44 are respectively disposed at the corners of the lower surface of the supporting plate 42. In other embodiments, there may be three elastic pressing members 44, and the three elastic pressing members 44 are respectively located at the same position and the same distance from the electrode column 43.

The movable platform 30 and the fixed platform 20 are both provided with a rectangular caliper 60, and the rectangular caliper 60 is used for limiting the horizontal position of the workpiece to be stamped. The part of the square caliper 60 that supports the stamping is a flat plate structure.

The use process and principle of the device are as follows:

firstly driving the movable platform 30 to move away from the fixed platform 20, then respectively placing two punching plates 50 to be welded on the movable platform 30 and the fixed platform 20, then driving the movable platform 30 to move towards the fixed platform 20 through a power device, in the process, the welding edges of the two punching plates 50 gradually approach, after the movable platform 30 moves to the position of the limiting block 12 on the linear track 11, the movable platform 30 stops, the opposite edges of the two punching plates 50 abut against each other, the back side edge of the punching plate 50 limits the position thereof through the right-angle caliper 60, then driving the spot welding assembly 40 to move downwards, in the process that the movable arm 41 moves downwards, firstly the elastic pressing piece 44 contacts with the punching plate 50, after the elastic pressing piece 44 contacts with the punching plate 50, the contact piece 443 and the sliding column 442 retract towards the inside of the sleeve 441, the movable arm 41 continuously moves downwards slowly for a small distance, at this time, the elastic pressing piece 44 can press the two punching plates 50 from top to bottom, the electrode shaft 43 is then discharged to complete the weld.

Subsequently, the spot welding assembly 40 is removed, the movable platen 30 is moved away from the fixed platen 20, and the punching plate 50 is released to complete the welding.

The foregoing is only a preferred embodiment of the present invention, and many variations can be made in the specific embodiments and applications of the present invention by those skilled in the art without departing from the spirit of the present invention.

Claims

1. The utility model provides a novel part spot welding device which characterized in that: the spot welding device comprises a bottom plate, a linear rail, a fixed platform, a movable platform and a spot welding assembly, wherein the fixed platform is arranged on the top surface of the bottom plate, the linear rail is arranged on the top surface of the bottom plate, one end of the linear rail faces the fixed platform, the movable platform is slidably arranged on a slide rail, a position-adjustable limiting block is arranged on the slide rail and used for limiting the limit moving position of the brake platform, and two stamping parts to be welded are respectively arranged on the fixed platform and the movable platform; the spot welding assembly comprises a movable arm, a supporting plate, an electrode column and a plurality of elastic pressing pieces, wherein the top surface of the supporting plate is fixedly connected to the tail end of the movable arm, the bottom surface of the supporting plate is a plane, the electrode column is vertically arranged at the center of the lower surface of the supporting plate, and the elastic pressing pieces are arranged around the electrode column at equal intervals; the elastic pressing piece comprises a sleeve, a sliding column, a contact piece and an elastic piece, wherein the sleeve is vertically connected to the bottom surface of the supporting plate, the sliding column is inserted into the sleeve, the contact piece is installed at the lower end of the sliding column and placed outside the sleeve, and the elastic piece is placed in the sleeve and connected with the upper end of the sliding column and the supporting plate.

2. The new spot welding of parts as set forth in claim 1, characterized in that: and under the compression limit state of the elastic pressing piece, the lower surface position of the contact piece is lower than the lower end position of the electrode column, and the height difference between the contact piece and the electrode column is the spot welding distance.

3. The new spot welding of parts as set forth in claim 1, characterized in that: the lower surface of the contact piece is a plane with a certain extending area.

4. A novel spot welding of parts according to claim 3, characterized in that: the contact member is a rubber block.

5. The new spot welding of parts as set forth in claim 1, characterized in that: the elastic piece is a spring.

6. The new spot welding of parts as set forth in claim 1, characterized in that: the backup pad is the rectangle flat board, the elasticity pressfitting has four, and four elasticity pressfittings set up the corner of backup pad lower surface respectively.

7. The new spot welding of parts as set forth in claim 1, characterized in that: the movable platform and the fixed platform are both provided with a rectangular caliper which is used for limiting the horizontal position of the workpiece to be stamped.

8. The new spot welding of parts as claimed in claim 7, wherein: the part of the right angle caliper bearing stamping part is of a flat plate structure.