CN210937309U

CN210937309U - Spot welding drill bit structure

Info

Publication number: CN210937309U
Application number: CN201922059187.3U
Authority: CN
Inventors: 左国文
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-07-07
Anticipated expiration: 2029-11-26

Abstract

The utility model discloses a spot welding drill bit structure, including centre gripping post and drilling, centre gripping post one end is provided with the thread head, the inside shrink groove of having seted up of thread head and centre gripping post, the inside spring that is provided with of shrink groove, and the spring outer end is connected with the thimble, the inside first bearing that is provided with of thread head, the terminal outer wall connection of spring has the second bearing, the drilling wraps up in the thread head outer wall. The outer opening size of the first drill bit and the second drill bit of the spot welding drill bit structure is matched with the outer opening size of a spot welding head of a spot welding machine, the outer opening size larger than the spot welding head can be used for clamping the tail end of the clamping column in electric drill equipment, the clamping column is driven through an electric drill to enable the first drill bit and the second drill bit to rotate, so that a workpiece spot welding contact point is disassembled, the spot welding contact point is favorably and completely removed, the workpiece spot welding machine is convenient to disassemble for the workpiece spot welding in the previous time, large-area damage can not be caused to the surface of the workpiece, and later-stage repair is facilitated.

Description

Spot welding drill bit structure

Technical Field

The utility model relates to a car is wretched gold and is repaired technical field, specifically is a spot welding drill bit structure.

Background

The welding of the prior automobile metal plate and various metal plate equipment products basically adopts a spot welding machine to realize welding operation, spot welding refers to a welding method of forming a welding spot between the contact surfaces of two overlapped workpieces by using a columnar electrode during welding, during spot welding, the workpieces are pressed to be in close contact with each other firstly, then current is switched on, the contact part of the workpieces is melted under the action of resistance heat, and the welding spot is formed after cooling.

When carrying out secondary and wrenching spot welding or wrenching equipment product dismantlement, need earlier disassemble the work piece of the previous time earlier can, adopt fluted drill or abrasive wheel cutting to disassemble basically, fluted drill volume is narrow and small, can not get rid of the spot welding contact between the work piece completely, leads to the work piece to appear because of disassembling the condition that thoroughly can't take off, and abrasive wheel cutting can lead to the work piece large tracts of land damage, restores the difficulty, to above-mentioned condition, we have promoted a spot welding drill structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spot welding drill structure to propose general when carrying out secondary gold spot welding or gold equipment product dismantlement in solving above-mentioned background art, need will be with the previous work piece disassemble down can, adopt fluted drill or abrasive wheel cutting to disassemble basically, fluted drill is small in size, can not get rid of the spot welding contact between the work piece completely, lead to the work piece to appear because of disassembling the condition that thoroughly can't take off, and abrasive wheel cutting can lead to the work piece large tracts of land damage, the problem of repairing the difficulty.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a spot welding drill bit structure, includes centre gripping post and drilling piece, centre gripping post one end is provided with the thread head, the shrink groove has been seted up with centre gripping post inside to the thread head, the shrink inslot portion is provided with the spring, and the spring outer end is connected with the thimble, the inside first bearing that is provided with of thread head, the terminal outer wall connection of spring has the second bearing, drilling piece wraps up in the thread head outer wall.

Preferably, the central axis of the clamping column and the central axis of the threaded head are located on the same horizontal line, and the clamping column and the threaded head are in a welding integrated structure.

Preferably, the central axis of the shrinkage groove and the central axis of the clamping column are located on the same horizontal line, and the clamping column is of a hexagonal structure.

Preferably, the thimble passes through the shrinkage groove and constitutes limit structure, and the thimble passes through to constitute extending structure between spring and the centre gripping post.

Preferably, the outer wall of the thimble is attached to the inner wall of the first bearing, and the thimble is in a conical structure.

Preferably, drilling piece parcel screwed pipe, first drill bit, second drill bit and sawtooth, and screwed pipe one end is connected with first drill bit, the screwed pipe other end is connected with the second drill bit, and the sawtooth has all been seted up in the second drill bit and the first drill bit outside.

Preferably, the threaded pipe is connected with the threaded head in a threaded manner, and the first drill bit and the second drill bit are symmetrically distributed about a vertical center line of the threaded pipe.

Preferably, the sawteeth on the outer side of the first drill bit and the sawteeth on the outer side of the second drill bit are distributed oppositely, and the size of the inner opening of the first drill bit is larger than that of the outer opening of the screw head.

Compared with the prior art, the beneficial effects of the utility model are that: the outer opening size of the first drill bit and the second drill bit of the spot welding drill bit structure is matched with the outer opening size of a spot welding head of a spot welding machine, the outer opening size larger than the spot welding head can be used for clamping the tail end of the clamping column in electric drill equipment, the electric drill drives the clamping column to enable the first drill bit and the second drill bit to rotate, so that a workpiece spot welding contact is disassembled, the spot welding contact is favorably and completely removed, large-area damage to the surface of a workpiece can be avoided, and later-stage repair is facilitated.

This spot welding drill bit structure first drill bit, second drill bit distribute in screwed pipe both sides respectively, and the sawtooth in the first drill bit outside distributes in opposite directions with the sawtooth in the second drill bit outside, has two drill bits on being equivalent to a drilling rod, is favorable to improving the life of this spot welding drill bit structure to drilling member and the connected mode between the thread head are threaded connection, make things convenient for the later stage to change.

This spot welding drill bit structure thimble supports spot welding contact center, has played the positioning action, and thimble outer wall is connected with first bearing, and spring end outer wall is connected with the second bearing, and thimble, spring pass through first bearing, second bearing and keep static when centre gripping post pivoted, are favorable to improving the accuracy when this spot welding drill bit structure disassembles spot welding contact to it itself is the hexagonal column structure and makes things convenient for electric drill equipment to press from both sides the dress fixed to hold.

Drawings

Fig. 1 is a schematic top view of the present invention;

FIG. 2 is a schematic view of the top view of the inner structure of the clamping column of the present invention;

fig. 3 is a schematic view of the thimble of the present invention.

In the figure: 1. a clamping post; 2. a screw head; 3. a contraction groove; 4. a spring; 5. a thimble; 6. a first bearing; 7. a second bearing; 8. drilling a piece; 801. a threaded pipe; 802. a first drill bit; 803. a second drill bit; 804. and (4) saw teeth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a spot welding drill bit structure comprises a clamping column 1 and a drilling part 8, wherein a threaded head 2 is arranged at one end of the clamping column 1, the central axis of the clamping column 1 and the central axis of the threaded head 2 are located on the same horizontal line, a welding integrated structure is formed between the clamping column 1 and the threaded head 2, the central axis of the clamping column 1 and the central axis of the threaded head 2 are located on the same horizontal line, so that the spot welding drill bit structure is in the same horizontal line, the accuracy of the drill bit during operation is improved, the bearing pressure of the clamping column 1 and the threaded head 2 is improved due to the welding integrated structure between the clamping column 1 and the threaded head 2, and the clamping column 1 and the threaded head 2 are prevented from being broken;

the inner parts of the threaded head 2 and the clamping column 1 are provided with a shrinkage groove 3, the central axis of the shrinkage groove 3 and the central axis of the clamping column 1 are positioned on the same horizontal line, the clamping column 1 is of a hexagonal structure, the tail end of the clamping column 1 is clamped in electric drill equipment, the electric drill drives the clamping column 1 to enable the spot welding drill bit structure to operate, and the clamping column 1 is of a hexagonal structure, so that the electric drill equipment can be conveniently clamped and fixed;

a spring 4 is arranged in the shrinkage groove 3, the outer end of the spring 4 is connected with a thimble 5, the thimble 5 forms a limiting structure through the shrinkage groove 3, the thimble 5 forms a telescopic structure through the spring 4 and the clamping column 1, the thimble 5 props against the center of the spot welding contact to play a role in positioning, when the spot welding drill bit structure works, the thimble 5 props against the center of the spot welding contact to be influenced by pressure to compress the spring 4 to enter the shrinkage groove 3, so that the accuracy of the spot welding drill bit structure in the process of disassembling the spot welding contact is improved, the thimble 5 stretches along the inner wall of the shrinkage groove 3, and the shrinkage groove 3 is favorable for limiting the thimble 5 and preventing the thimble 5 from inclining;

a first bearing 6 is arranged in the threaded head 2, the outer wall of the tail end of the spring 4 is connected with a second bearing 7, the outer wall of the ejector pin 5 is attached to the inner wall of the first bearing 6, the ejector pin 5 is in a conical structure, the outer wall of the ejector pin 5 is connected with the first bearing 6, the outer wall of the tail end of the spring 4 is connected with the second bearing 7, the ejector pin 5 and the spring 4 are kept static through the first bearing 6 and the second bearing 7 when the clamping column 1 rotates, the positioning effect of the ejector pin 5 is improved, and the ejector pin 5 is in a conical structure and is beneficial to accurate positioning;

the drilling member 8 is wrapped on the outer wall of the threaded head 2, the drilling member 8 is wrapped on the threaded pipe 801, the first drill bit 802, the second drill bit 803 and the sawteeth 804, one end of the threaded pipe 801 is connected with the first drill bit 802, the other end of the threaded pipe 801 is connected with the second drill bit 803, the sawteeth 804 are arranged on the outer sides of the second drill bit 803 and the first drill bit 802, the threaded pipe 801 is in threaded connection with the threaded head 2, the first drill bit 802 and the second drill bit 803 are symmetrically distributed about the vertical center line of the threaded pipe 801, the sawteeth 804 on the outer side of the first drill bit 802 and the sawteeth 804 on the outer side of the second drill bit 803 are oppositely distributed, the size of an inner opening of the first drill bit 802 is larger than that of an outer opening of the threaded head 2, the sizes of outer openings of the first drill bit 802 and the second drill bit 803 are matched with that of an outer opening of a spot welding machine, the size of the outer opening of the spot welding head is larger than that, be favorable to getting rid of the spot welding contact point completely, and can not cause the large tracts of land damage to the workpiece surface, make things convenient for the later stage to restore, and first drill bit 802, second drill bit 803 distributes respectively in screwed pipe 801 both sides, and the sawtooth 804 in the outside of first drill bit 802 and the sawtooth 804 in the outside of second drill bit 803 distribute in opposite directions, there are two drill bits on being equivalent to a drilling rod, be favorable to improving the life of this spot welding drill bit structure, and the connected mode between drilling 8 and the nipple 2 is threaded connection, make things convenient for the later stage to change.

The working principle is as follows: when the spot welding drill bit structure is used, firstly, a drilling piece 8 is in threaded connection with a threaded head 2, then the tail end of a clamping column 1 is clamped in electric drill equipment, then an ejector pin 5 is abutted against the center of a spot welding contact to play a role in positioning, then the electric drill drives the clamping column 1 to enable a first drill bit 802 and a second drill bit 803 to rotate so as to enable a sawtooth 804 to cut the surface of the spot welding contact, thereby disassembling the spot welding contact of a workpiece, being beneficial to completely removing the spot welding contact, not causing large-area damage to the surface of the workpiece, being convenient for later repair, when the first drill bit 802 and the second drill bit 803 drill holes in the spot welding contact of the workpiece, the ejector pin 5 is abutted against the center of the spot welding contact and is influenced by pressure to enter a contraction groove 3, being beneficial to improving the accuracy of the spot welding drill bit structure when the spot welding contact is disassembled, and the ejector pin 5 stretches out, shrinkage cavity 3 is favorable to spacing thimble 5, avoid it to produce the slope, and thimble 5 outer wall connection has first bearing 6, and spring 4 end outer wall connection has second bearing 7, thimble 5 in centre gripping post 1 pivoted, spring 4 is through first bearing 6, second bearing 7 keeps static, be favorable to improving the accuracy when this spot welding drill bit structure is disassembled spot welding contact point, last first drill bit 802, second drill bit 803 distributes respectively in screwed pipe 801 both sides, and the sawtooth 804 in the first drill bit 802 outside distributes with the sawtooth 804 in the second drill bit 803 outside in opposite directions, be equivalent to two drill bits on a drilling rod, be favorable to improving the life of this spot welding drill bit structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A spot welding drill bit structure, includes centre gripping post (1) and drilling piece (8), its characterized in that: centre gripping post (1) one end is provided with thread head (2), shrink groove (3) have been seted up with centre gripping post (1) is inside to thread head (2), shrink groove (3) inside is provided with spring (4), and spring (4) outer end is connected with thimble (5), thread head (2) inside is provided with first bearing (6), spring (4) end outer wall connection has second bearing (7), drilling piece (8) wrap up in thread head (2) outer wall.

2. A spot welding drill bit structure according to claim 1, wherein: the central axis of the clamping column (1) and the central axis of the threaded head (2) are located on the same horizontal line, and a welding integrated structure is formed between the clamping column (1) and the threaded head (2).

3. A spot welding drill bit structure according to claim 1, wherein: the central axis of the shrinkage groove (3) and the central axis of the clamping column (1) are located on the same horizontal line, and the clamping column (1) is of a hexagonal structure.

4. A spot welding drill bit structure according to claim 1, wherein: the thimble (5) forms a limiting structure through the contraction groove (3), and the thimble (5) forms a telescopic structure through the spring (4) and the clamping column (1).

5. A spot welding drill bit structure according to claim 1, wherein: the outer wall of the thimble (5) is attached to the inner wall of the first bearing (6), and the thimble (5) is in a conical structure.

6. A spot welding drill bit structure according to claim 1, wherein: drilling piece (8) parcel screwed pipe (801), first drill bit (802), second drill bit (803) and sawtooth (804), and screwed pipe (801) one end is connected with first drill bit (802), screwed pipe (801) other end is connected with second drill bit (803), and sawtooth (804) have all been seted up in second drill bit (803) and first drill bit (802) outside.

7. A spot welding drill bit structure according to claim 6, wherein: the threaded pipe (801) and the threaded head (2) are connected in a threaded mode, and the first drill bit (802) and the second drill bit (803) are symmetrically distributed around the vertical center line of the threaded pipe (801).

8. A spot welding drill bit structure according to claim 6, wherein: the sawteeth (804) on the outer side of the first drill bit (802) and the sawteeth (804) on the outer side of the second drill bit (803) are distributed oppositely, and the size of the inner opening of the first drill bit (802) is larger than that of the outer opening of the threaded head (2).