CN211588887U

CN211588887U - Robot double-head single-side spot welding tongs

Info

Publication number: CN211588887U
Application number: CN201922396397.1U
Authority: CN
Inventors: 唐正伟; 朱林
Original assignee: Nanjing Fst Welding Technology Co ltd
Current assignee: Nanjing Fst Welding Technology Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-09-29
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a unilateral spot welding tongs of robot double-end, including support (1), cylinder (2), electrode holder (3), cooling device and two electrodes (4), support (1) is used for installing on the robot, the cylinder body slidable mounting of cylinder (2) is on support (1), electrode holder (3) are installed on the piston rod of cylinder (2) and electrode holder (3) are removed along with the flexible of cylinder (2) piston rod, install on electrode holder (3) electrode (4), and the length direction of electrode (4) is the same with the length direction of piston rod, electrode (4) are along with the removal and the synchronous movement of electrode holder (3), cooling device is used for letting in the coolant liquid to electrode (4) with electrode (4) intercommunication. The utility model discloses on set up two electrodes, the cylinder once stretches out and draws back can form two solder joints on the work piece, only need before the welding to the work piece location once can, reduce the utility model is used for the welded time, improves the utility model is used for welded efficiency.

Description

Robot double-head single-side spot welding tongs

Technical Field

The utility model relates to a unilateral spot welding tongs of robot double-end belongs to the welding technology field.

Background

The spot welding is a welding method for forming a welding spot between contact surfaces of two overlapped workpieces by using a columnar electrode during welding, a spot welder is a tool used for spot welding, the conventional spot welder comprises two electrodes which are arranged in opposite directions, when the spot welder is used for welding, the two electrodes move in opposite directions from two sides of the workpiece and are in contact with the workpiece to be welded to realize the welding of the overlapped workpieces, the conventional spot welder can only realize the welding at one point on the workpiece every time, if the workpiece needs to be moved to another external welding position, the workpiece is positioned again, and the welding efficiency is low.

Disclosure of Invention

The utility model aims at providing a unilateral spot welding tongs of robot double-end solves the technical defect that the spot welder connects inefficiency in prior art.

In order to solve the above problems, the utility model adopts the following technical proposal: unilateral spot welding tongs of robot double-end, including support, cylinder, electrode holder, cooling device and two electrodes, the support is used for installing on the robot, and the cylinder body slidable mounting of cylinder is on the support, and the electrode holder is installed on the piston rod of cylinder and the electrode holder removes along with cylinder piston rod's flexible, and the electrode mounting is on the electrode holder to the length direction of electrode is the same with the length direction of piston rod, and the electrode removes along with the removal of electrode holder and synchronous movement, and cooling device is used for letting in the coolant liquid to the electrode with the electrode intercommunication. The utility model discloses in set up two electrodes, can weld out two solder joints simultaneously on the work piece, improve the welding efficiency of work piece, the utility model discloses the distance between two electrodes is fixed, the solder joint that forms two specific distances on the work piece only need to carry out once to the work piece fix a position can, improve the welding efficiency of work piece.

As the utility model discloses a further improvement still includes the cylinder mounting bracket, and cylinder mounting bracket slidable mounting is on the support, and the quantity of cylinder and electrode holder is two, and two cylinders are all installed on the cylinder mounting bracket, and two electrodes are installed respectively on two electrode holders, and an electrode holder is connected to the piston rod of every cylinder. The utility model discloses set up the cylinder mounting bracket, make things convenient for the installation of cylinder to slide with the relative frame of utmost point cylinder, the utility model discloses the quantity of well cylinder is two, and every electrode is driven by a cylinder, and the atress of electrode is even, and the utility model discloses overall structure is more stable.

As a further improvement of the utility model, the cylinder mounting bracket includes front end housing, rear end cap and first guide bar, and front end housing and rear end cap are installed respectively at the front end and the rear end of the cylinder body of cylinder and the piston rod of cylinder passes front end housing and relative front end housing is flexible, and the rear end and the front end of first guide bar are connected with front end housing and rear end cap respectively, first guide bar and support sliding connection.

As a further improvement, the utility model is provided with the installation cover on the support, but first guide bar passes the installation cover and the relative installation cover slides, the front end cover of first guide bar is equipped with preceding spring, the front end and the rear end of preceding spring are used for supporting the front end of front end housing and installation cover respectively, the rear end cover of first guide bar is equipped with the back spring, the front end and the rear end of back spring are used for supporting the rear end and the rear end housing of installation cover respectively, the cylinder mounting bracket moves forward and backward and compresses back spring and front spring respectively. The utility model discloses set up relative slip's first guide bar and installation cover, through the relative slip of first guide bar and installation cover, make the relative frame of cylinder mounting bracket slide, the utility model discloses in set up preceding spring and back spring, when cylinder mounting bracket atress slides, preceding spring or back spring are compressed, and when the cylinder mounting bracket atress disappears, by preceding spring and back spring reconversion and push back the normal position with the cylinder mounting bracket.

As the utility model discloses a further improvement installs the transformer on the support, and the electrode is connected with the transformer electricity, the utility model discloses set up the transformer for with voltage adjustment to welding voltage, the utility model discloses the transformer is installed on the support, reduces the length of connecting the conductor of transformer and electrode, reduces the utility model discloses a cost.

As a further improvement, the top of the bracket is provided with a transformer mounting bracket, and the transformer is mounted on the transformer mounting bracket. The utility model discloses set up the transformer mounting bracket, conveniently install the transformer on the support.

As the utility model discloses a further improvement still includes the second guide bar, and the front end housing is passed to the second guide bar to the front end and the electrode holder of second guide bar are connected, and the relative front end housing of second guide bar along with the removal of electrode holder removes. The utility model discloses set up the second guide bar, the flexible of the piston rod of cooperation cylinder makes the electrode slide along the straight line, improves the utility model discloses the position precision of solder joint.

As the utility model discloses a further improvement, the one end of keeping away from the electrode holder on the second guide bar is provided with the response piece, is provided with the proximity switch who is used for detecting the response piece on the cylinder body of cylinder, installs the solenoid valve on the trachea of connection cylinder, and proximity switch is connected with the solenoid valve electricity, and proximity switch detects opening and shutting of response piece control solenoid and is used for controlling the flexible of cylinder piston rod. The utility model discloses set up response piece and proximity switch, detect the flexible length of piston rod of the position determination cylinder of response piece through proximity switch to this control lets in the compressed gas of cylinder.

As a further improvement of the utility model, be provided with the switch mounting bracket on the cylinder body of cylinder, the switch mounting bracket includes horizontal installation unit and vertical installation unit, and the top of vertical installation unit is installed on the cylinder body of cylinder, and the one end that the electrode holder was kept away from to the horizontal installation unit is connected with the bottom of vertical installation unit, and proximity switch installs on the horizontal installation unit. The utility model discloses set up the switch mounting bracket, the convenience is installed proximity switch on the cylinder body of cylinder.

As a further improvement, the horizontal installation unit is provided with a mounting groove along the front and back direction, and the proximity switch is arranged in the mounting groove. The utility model discloses set up the mounting groove on horizontal installation unit, can install proximity switch in the suitable position on the horizontal installation unit as required.

To sum up, the beneficial effects of the utility model are that: the utility model discloses on set up two electrodes, the cylinder once stretches out and draws back can form two solder joints on the work piece, only need before the welding to the work piece location once can, reduce the utility model is used for the welded time, improves the utility model is used for welded efficiency.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a plan view of the present invention.

Fig. 3 is a sectional view a-a of fig. 2.

Fig. 4 is a sectional view B-B of fig. 2.

Fig. 5 is a schematic perspective view of the present invention.

Fig. 6 is a schematic perspective view of another angle of the present invention.

Wherein: 1. a support; 101. a left support plate; 102. a right support plate; 103. a rear support plate; 104. a connecting plate; 2. a cylinder; 3. an electrode holder; 4. an electrode; 5. a cylinder mounting frame; 6. a front end cover; 7. a rear end cap; 8. a first guide bar; 9. installing a sleeve; 10. a transformer; 11. a transformer mounting bracket; 12. a second guide bar; 13. an induction block; 14. a proximity switch; 15. an electromagnetic valve; 16. a switch mounting bracket; 17. a horizontal mounting unit; 18. a vertical mounting unit; 19. mounting grooves; 20. mounting a plate; 21. a guide hole; 22. a connecting seat; 23. a pipeline connecting piece.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings. The utility model discloses in regard to the moving direction of electrode as the fore-and-aft direction to before the direction of electrode is the direction, the direction of keeping away from the electrode is after the direction, is left right direction with fore-and-aft direction vertically direction on the horizontal plane.

The robot double-head unilateral spot welding tongs as shown in figures 1-6 comprises a bracket 1, a cylinder 2, an electrode holder 3, a cooling device and two electrodes 4, wherein the bracket 1 is used for being installed on a robot, the bracket 1 of the utility model comprises a left support plate 101, a right support plate 102, a rear support plate 103 and a connecting plate 104, the rear ends of the left support plate 101 and the right support plate 102 are respectively connected with the left end and the right end of the rear support plate 103 by a plurality of bolts from top to bottom, the left end and the right end of the connecting plate 104 are respectively connected with the middle parts of the front ends of the left support plate 101 and the right support plate 102 by bolts in a detachable way, the left support plate 101, the right support plate 102 and the rear support plate are all vertically arranged, the left support plate 101 and the right support plate 102 are both vertical to the rear support plate 103, and the bracket structure with a T-shaped projection formed on the, connecting plate 104 level set up, the utility model discloses in back backup pad 103 on be provided with flange for install on the robot.

The utility model discloses in cylinder 2's cylinder body slidable mounting on support 1, electrode holder 3 install on cylinder 2's piston rod and electrode holder 3 removes along with the flexible of cylinder 2 piston rod, electrode 4 install on electrode holder 3, and electrode 4's length direction the same with the length direction of piston rod, electrode 4 along with electrode holder 3's removal and synchronous motion, cooling device and electrode 4 intercommunication be used for letting in the coolant liquid to electrode 4.

For the convenience of cylinder 4 installs on support 1, the utility model discloses be provided with cylinder mounting bracket 5, cylinder mounting bracket 5 slidable mounting on support 1, the utility model discloses in the quantity of cylinder 2 and electrode holder 3 be two, two cylinder 2 all install on cylinder mounting bracket 5, two electrode 4 install respectively on two electrode holders 3, an electrode holder 3 is connected to every cylinder 2's piston rod. The utility model discloses in cylinder mounting bracket 5 include front end housing 6, rear end cap 7 and first guide bar 8, the utility model discloses in front end housing 6 on open and to have two piston through-holes that supply cylinder 4's piston rod to freely pass through, front end and the rear end of cylinder 4's cylinder body adopt bolt detachable to install on front end housing 6 and rear end cap 7 respectively, cylinder 4's piston rod pass the piston through-hole to can be in the piston through-hole relative front end housing 6 accessible flexible, the utility model discloses in rear end and the front end of first guide bar 8 be connected with front end housing 6 and rear end cap 7 respectively, and

first guide bar

8 and 1 sliding connection of support. The utility model discloses in the quantity of first guide bar 8 be two, the front end of two first guide bars 8 is connected with the front end plate 6 about both ends respectively, the rear end of two first guide bars 8 is connected with the rear end plate 7 about both ends respectively to two first guide bar 8 are flat to be set up.

The utility model discloses realize that first guide bar 8 is with the concrete structure of 1 sliding connection of support: left branch fagging 101 and right branch fagging 102 of support 1 in opposite directions on adopt bolt detachable to install installation cover 9 respectively, installation cover 9 in be provided with linear bearing (not shown in the figure), first guide bar 8 cooperate with linear bearing, the relative linear bearing of first guide bar 8 slides for the relative installation cover 9 of first guide bar 8 slides, and the friction between support 1 and cylinder mounting bracket 5 is little, the utility model provides a bolt is adopted at installation cover 9's top and connecting plate 104 detachable is connected. The utility model discloses the front end cover of first guide bar 8 be equipped with front spring (not shown in the figure), front end and the rear end of front spring be used for respectively supporting front end housing 6 and the front end of installation cover 9, the rear end cover of first guide bar 8 be equipped with the rear spring not shown in the figure, the front end and the rear end of rear spring be used for respectively supporting rear end and the rear end cap 7 of installation cover 9, cylinder mounting bracket 5 and the cylinder 4 of installing on cylinder mounting bracket 5 when the atress is whole relatively support frame 1 backward, the distance between front end housing 6 and installation cover 9 reduce, and the front spring is compressed this moment, and after the above-mentioned power disappears, front spring reconversion, bounce cylinder mounting bracket 5 and the cylinder 4 of installing on cylinder mounting bracket 5 forward, on the contrary, when cylinder mounting bracket 5 and the cylinder 4 of installing on cylinder mounting bracket 5 received forward power, the rear spring is compressed and when the force disappears, the rear spring rear cylinder mount 5 and the cylinder 4 mounted on the cylinder mount 5 rebound backwards. The utility model discloses the top of the left and right sides of front end housing 6 and rear end cap 7 establish and be provided with preceding installation department and back installation department respectively, first guide bar 8 around both ends be connected with preceding installation department and back installation department respectively, the utility model provides a relative support 1 of cylinder mounting bracket 5 removes, and is convenient the utility model discloses holistic installation.

The utility model discloses install transformer 10 on support 1, electrode 4 and transformer 10 adopt the conductor electricity to be connected, transformer 10 and alternating current electricity be connected, supply power for the electrode after the transformer 10 vary voltage, the utility model discloses in the top of electrode holder 3 and conductor adopt bolt detachable to be connected and are used for linking electrode 4 and transformer 10; the utility model is characterized in that a transformer mounting rack 11 is arranged on the top of the bracket 1, and the transformer 10 is arranged on the transformer mounting rack 11; the utility model discloses in transformer mounting bracket 11 including controlling two mounting panels 20, the left side and the left support board 101 of a mounting panel 20 in left side adopt bolt detachable to be connected, the right side and the right support board 102 of a mounting panel 20 in right side adopt bolt detachable to be connected, transformer 10 be located between two mounting panels 10 and the left side both sides of transformer 10 adopt bolt detachable to be connected with two mounting panels 20 one end in opposite directions respectively for install transformer 10 detachable on support 1 and transformer 10 is located the top of connecting plate 104.

The utility model discloses be provided with two second guide bars 12 front end housing 6 on open and to control two guiding holes 21, second guide bar 12 pass guiding hole 21 and can slide in guiding hole 21, the front end of second guide bar 12 be connected with electrode holder 3 detachable, second guide bar 12 remove along with electrode holder 3 removal front end housing 6 relatively, the utility model discloses bottom of electrode holder 4 adopt bolt detachable to install connecting seat 22, connecting seat 22 include horizontal connection unit and vertical linkage unit, vertical linkage unit's top be connected with horizontal connection unit's rear end. Make whole connecting seat 22 be the structure of falling L shape, horizontal coupling unit be used for detachable to install in the bottom of electrode holder 4, vertical coupling unit be used for being connected with second guide bar 12, the utility model discloses in second guide bar 12 whole be cylindricly, be provided with the less linkage segment of diameter at the front end of second guide bar 12 to be provided with the screw thread on the linkage segment, it has the connect the via hole around running through it to open on vertical coupling unit, the linkage segment pass connect the via hole and all be provided with the gasket in both sides around connect the via hole on the linkage segment, be provided with rather than screw-thread fit's nut at the front end of linkage segment, install second guide bar 12 on vertical coupling unit, the utility model discloses a preferred integrated into one piece of vertical coupling unit and horizontal coupling unit make.

The utility model discloses second guide bar 12 on keep away from the one end of electrode holder 3 and be provided with response piece 13 cylinder 2's cylinder body on be provided with proximity switch 14 that is used for detecting response piece 13, install solenoid valve 15 on the trachea of connecting cylinder 2, the utility model discloses in solenoid valve 15 install at the top of mounting panel 20, solenoid valve 15 of two cylinders 4 is located the left and right sides of transformer 10 respectively, proximity switch 14 be connected with solenoid valve 15 electricity, proximity switch 14 detect opening and shutting of response piece 13 control solenoid valve 15 and be used for controlling the flexible of 2 piston rods of cylinder. The utility model discloses the rear end of second guide bar 12 open and to have the screw hole, response piece 13 be the cubic form to the length direction of response piece 13 is unanimous with the left and right sides direction response piece 13 on keep away from proximity switch 14 one end along the fore-and-aft direction and open and have the installation through-hole, the utility model discloses a pass the installation through-hole and with screw hole screw-thread fit's bolt with respond to 14 detachable of piece and install the rear end at second guide bar 12.

The utility model discloses cylinder 2's cylinder body on be provided with switch mounting bracket 16, switch mounting bracket 16 include horizontal installation unit 17 and vertical installation unit 18, vertical installation unit 18's top adopt bolt detachable to install the rear portion at cylinder 2's cylinder body, horizontal installation unit 17 one end of keeping away from electrode holder 3 be connected with vertical installation unit 18's bottom, proximity switch 14 install on horizontal installation unit 17. The utility model discloses it is preferred horizontal installation unit 17 on open along the fore-and-aft direction and have mounting groove 19, proximity switch 14 install in mounting groove 19.

The cooling device in the utility model comprises a pipeline connecting piece 23 which is used for communicating cooling liquid through a cold liquid determining pipeline, the pipeline connecting piece 23 is arranged at the top of the transformer 10 by adopting a bolt detachable way, the pipeline connecting piece 23 in the utility model is provided with a cooling liquid inlet, a plurality of cooling liquid outlets, a cooling liquid return port and a cooling liquid outlet, the cooling liquid inlet is connected with a pipeline for connecting a container for containing the cooling liquid, the left side and the right side of an electrode seat 3 in the utility model are respectively provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are both communicated with an electrode, the liquid inlet is communicated with the cooling liquid outlet of the pipeline connecting piece 23, the liquid outlet is communicated with the cooling liquid return port of the pipeline connecting piece 23, the cooling liquid flows through the cooling liquid outlet, the liquid inlet, the liquid outlet and the cooling liquid return port from the cooling liquid inlet in turn and is discharged from the, flowing from the electrode rod of the electrode 4 to the electrode cap, the temperature of the whole electrode 4 is reduced.

The utility model discloses when using, with two the utility model discloses install on the robot, and two the utility model discloses an electrode sets up in opposite directions for contact the work piece welding from the both sides of work piece and work piece when using.

Parts which are not specifically described in the above description are prior art or can be realized by the prior art. The specific embodiments of the present invention are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention. That is, all equivalent changes and modifications made according to the contents of the claims of the present invention should be regarded as the technical scope of the present invention.

Claims

1. Unilateral spot welding pincers of robot double-end, its characterized in that: including support (1), cylinder (2), electrode holder (3), cooling device and two electrodes (4), support (1) is used for installing on the robot, the cylinder body slidable mounting of cylinder (2) is on support (1), electrode holder (3) are installed on the piston rod of cylinder (2) and electrode holder (3) move along with the flexible of cylinder (2) piston rod, electrode (4) are installed on electrode holder (3), and the length direction of electrode (4) is the same with the length direction of piston rod, electrode (4) move along with the removal of electrode holder (3) and synchronous motion, cooling device is used for letting in the coolant liquid to electrode (4) with electrode (4) intercommunication.

2. The robot double-ended single-sided spot welder of claim 1, characterized in that: still include cylinder mounting bracket (5), cylinder mounting bracket (5) slidable mounting is on support (1), and the quantity of cylinder (2) and electrode holder (3) is two, and two cylinder (2) are all installed on cylinder mounting bracket (5), and two electrodes (4) are installed respectively on two electrode holders (3), and one electrode holder (3) are connected to the piston rod of every cylinder (2).

3. The robot double-ended single-sided spot welder of claim 2, characterized in that: cylinder mounting bracket (5) include front end housing (6), rear end cap (7) and first guide bar (8), front end housing (6) and rear end cap (7) are installed respectively at the front end and the rear end of the cylinder body of cylinder (2) and the piston rod of cylinder (2) passes front end housing (6) and relative front end housing (6) flexible, the rear end and the front end of first guide bar (8) are connected with front end housing (6) and rear end cap (7) respectively, first guide bar (8) and support (1) sliding connection.

4. The robotic double-ended single-sided spot welder of claim 3, wherein: be provided with installation cover (9) on support (1), first guide bar (8) pass installation cover (9) and can slide relatively installation cover (9), the front end cover of first guide bar (8) is equipped with preceding spring, the front end and the rear end of preceding spring are used for supporting the front end of front end housing (6) and installation cover (9) respectively, the rear end cover of first guide bar (8) is equipped with the rear spring, the front end and the rear end of rear spring are used for supporting rear end and rear end housing (7) of installation cover (9) respectively, cylinder mounting bracket (5) move forward and move backward and compress rear spring and front spring respectively.

5. The robot double-ended single-sided spot welder of claim 4, characterized in that: the transformer (10) is installed on the support (1), and the electrode (4) is electrically connected with the transformer (10).

6. The robot double-ended single-sided spot welder of claim 5, characterized in that: the top of the support (1) is provided with a transformer mounting rack (11), and the transformer (10) is installed on the transformer mounting rack (11).

7. The robot double-ended single-sided spot welder of claim 6, characterized in that: the electrode holder is characterized by further comprising a second guide rod (12), the second guide rod (12) penetrates through the front end cover (6), the front end of the second guide rod (12) is connected with the electrode holder (3), and the second guide rod (12) moves relative to the front end cover (6) along with the movement of the electrode holder (3).

8. The robotic double-ended single-sided spot welder of claim 7, wherein: an induction block (13) is arranged at one end, far away from the electrode base (3), of the second guide rod (12), a proximity switch (14) used for detecting the induction block (13) is arranged on a cylinder body of the air cylinder (2), an electromagnetic valve (15) is installed on an air pipe connected with the air cylinder (2), the proximity switch (14) is electrically connected with the electromagnetic valve (15), and the proximity switch (14) detects the induction block (13) to control the opening and closing of the electromagnetic valve (15) so as to control the extension and contraction of a piston rod of the air cylinder (2).

9. The robotic double-ended single-sided spot welder of claim 8, wherein: be provided with switch mounting bracket (16) on the cylinder body of cylinder (2), switch mounting bracket (16) include horizontal installation unit (17) and vertical installation unit (18), and the top of vertical installation unit (18) is installed on the cylinder body of cylinder (2), and the one end that electrode holder (3) were kept away from in horizontal installation unit (17) is connected with the bottom of vertical installation unit (18), and proximity switch (14) are installed on horizontal installation unit (17).

10. The robotic double-ended single-sided spot welder of claim 9, wherein: an installation groove (19) is formed in the horizontal installation unit (17) along the front-back direction, and the proximity switch (14) is installed in the installation groove (19).