CN1905984B - Cap tip removing device of welding machine - Google Patents
Cap tip removing device of welding machine Download PDFInfo
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- CN1905984B CN1905984B CN2004800405479A CN200480040547A CN1905984B CN 1905984 B CN1905984 B CN 1905984B CN 2004800405479 A CN2004800405479 A CN 2004800405479A CN 200480040547 A CN200480040547 A CN 200480040547A CN 1905984 B CN1905984 B CN 1905984B
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- claw
- handle
- end cap
- fixed
- movable claw
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Abstract
A cap tip detaching apparatus for a resistance welding machine that detaches a cap tip fitted to a shank of the resistance welding machine. The apparatus includes a pawl portion including a fixed pawl and a movable pawl. The fixed pawl extends in a direction orthogonal to the shank axis so as to be brought into close contact with a lower end portion of the shank. The movable pawl, forming a pair with the fixed pawl, is provided in a leading end of a leverage type lever and is brought into close contact with an upper end portion of the cap tip. A drive portion is included for moving the pawl portion to a portion between the shank and the cap tip. A rotating mechanism, working with the drive portion, rotates the lever to disconnect the cap tip from the shank by pushing down the movable pawl.
Description
Technical field
The present invention relates to a kind of bonding machine end cap (cap tip) separator, this device is can be under the situation of not damaging handle (shank) simple and easy and separate the end cap that is installed in the handle leading section reliably.
Background technology
Usually, spot welding is widely used in the welding of hardware as a kind of welding manner.Use a kind of welding gun that is attached on the mechanical arm in this spot welding, end cap is installed on the front end of handle in welding gun, yet if welding gun is used for a long time, the shape of end cap front end can deform and wear and tear, and therefore is difficult to guarantee welding quality.Therefore, count in process time or welding and to surpass under the situation of fixing process time or fixing solder joint number, by automatic grinding end cap periodically, perhaps separate the shape that end cap and end cap that more renew or through grinding guarantee the end cap front end from the handle front end.
On the other hand, in recent years, owing to frequently be used to welding material by the derusting process or the similar technology of chemical treatments, scrapping of end cap shifted to an earlier date, and the frequency of changing is tending towards improving.Yet, stop production line and reduced production efficiency with the replacing end cap.Therefore, just can change end cap in order not stop production line, for example patent documentation 1 discloses a kind of by it being attached to the end cap automatic separating apparatus that the mechanical arm front end uses.
Yet, the end cap automatic separating apparatus of disclosed routine adopts such structure in the document: forked lever inserts the space between end cap and the handle, lever is at the state that is applied to the handle side handle that has a down dip, and end cap separates in the mode of being pried open according to the lever application principle.Problem in this case is that the handle that lever is in contact with it and the bight of end cap are applied in concentrated load, scratch easily.In addition, be problematic in that lever inserts the insertion amount instability in the space between handle and the end cap, therefore can not separate end cap.
Patent documentation 1: Japanese unexamined patent publication 2002-79382.
Summary of the invention
Problem to be solved by this invention
The object of the present invention is to provide the cap tip removing device of welding machine that can address the above problem, this device can be easy separates the end cap that is installed to such as the handle leading section of the bonding machine of resistance welding machine etc. reliably, and does not damage the risk of handle when separating.
The method of dealing with problems
In order to solve above-mentioned problem routinely, according to the invention provides the cap tip removing device of welding machine of end cap that a kind of separation is installed to the handle leading section of bonding machine, this cap tip removing device of welding machine comprises:
Case shape apparatus main body;
Fixed claw, this fixed claw move forward along the axis direction perpendicular to handle it are closely contacted with the bottom of handle;
Movable claw, this movable claw and fixed claw are overlapping, and move forward together, and it is closely contacted with the upper end of end cap; With
Rotating mechanism, this rotating mechanism rotates and extends to the lever of movable claw rear side, makes it to separate and end cap is separated from handle thereby push movable claw with on above-below direction, keeping motionless fixed claw,
Wherein rotating mechanism is provided with the wedge shape sliding panel, behind the position that will move forward to by the claw that fixed claw and movable claw constitute between handle and the end cap, described rotating mechanism moves forward to push the mode rotating lever of movable claw based on described wedge shape sliding panel, fixed claw flatly is fixed to the front surface side of described apparatus main body, movable claw pivotally is connected to the front surface side of described apparatus main body by axle, and the inside of described apparatus main body is provided with described wedge shape sliding panel.
Effect of the present invention
For example it is attached to the front end of mechanical arm in use according to device of the present invention, to move forward to the handle of welding gun and the position between the end cap by the claw that fixed claw and movable claw constitute, fixed claw is closely contacted with the bottom of handle, and movable claw is closely contacted with the upper end of end cap.Afterwards, this device rotates the lever extend to the movable claw rear side by rotating mechanism, so that movable claw pushes movable claw and end cap is separated from handle from keep motionless fixed claw to separate such mode at above-below direction.At this moment, because the fixed claw that contacts with handle does not move,, and can separate end cap so handle can not damage simple and reliablely.In this case, it is exactly that the end cap that separates is damaged by movable claw that a kind of situation is arranged, yet, because end cap will be replaced, so the problem that do not have produces.In addition, because fixed claw does not move and movable claw can only rotate around the axle pivot, an advantage claw of this device also is not easy to damage.
Figure of description
Fig. 1 is the integrally-built stereogram that shows according to the first embodiment of the present invention;
Fig. 2 is the plane of Fig. 1;
Fig. 3 is the lateral elevational view of Fig. 1;
Fig. 4 is the stereogram of tine;
Fig. 5 is the key-drawing of demonstration according to the operation of the device of first embodiment;
Fig. 6 is the key-drawing of demonstration according to the operation of the device of first embodiment;
Fig. 7 is the key-drawing of demonstration according to the operation of the device of first embodiment;
Fig. 8 is the front view that shows the modification embodiment of first embodiment;
Fig. 9 is the front view that shows according to a second embodiment of the present invention;
Figure 10 is the front view of demonstration according to the operation of the device of second embodiment;
Figure 11 is the plane of Fig. 9;
Figure 12 is the front view that shows the modification embodiment of second embodiment.
The reference number explanation
1 base
2 slip chassis
3 drive divisions
4 guide rails
5a cam follower (cam follower)
The 5b roller
6 claws
6a fixed claw (fixed pawl)
6b movable claw (movable pawl)
The 6c groove of the notch
7 guided plates
The 7a patchhole
8 corners
9 cam paths
10 fixed claw unit (fixed pawl unit)
11
12 elastic components
13 bars
14 brake component sheets
15 sensors
16 apparatus main bodies
17 sliding panels
The 17a inclined-plane
18 drive divisions
19 guide rails
20 elastic components
The S handle
The S1 stage portion
S2 holds mounting pipe portion (tip fitting tube portion)
The T end cap
T1 upper end-face edge portion
The specific embodiment
Hereinafter illustrate according to a preferred embodiment of the invention with reference to the accompanying drawings.
Fig. 1 is the integrally-built stereogram that shows according to the first embodiment of the present invention; Fig. 2 is the plane of first embodiment; Fig. 3 is a lateral elevational view; Fig. 4 is the stereogram of claw.Device according to this embodiment is attached to the front end of mechanical arm in use and it is moved to the welding gun position that has end cap to be replaced of bonding machine.Because mechanical arm is widely known, therefore omitted in the accompanying drawings.In the ensuing in this case explanation, suppose that welding gun fixes, cap tip removing device moves along detaching direction, yet because welding gun is supported on the mechanical arm, welding gun just can move along the detaching direction of end cap.
In the accompanying drawing in this case, the base of reference number 1 this device of expression, reference number 7 expressions are attached to base 1 end by corner 8, are used for the guided plate of positioning handle.On guided plate 7, form the patchhole 7a of handle S, the handle S on the welding gun according to the operation of vertical of mechanical arm be inserted among the patchhole 7a.Reference number 2 expressions support to the slip chassis of the guide rail 4 on the base 1.Slip chassis 2 is connected to drive division 3 such as cylinder etc. by L shaped support 3a, and can move forward along the direction of guided plate 7, also can move backward along opposite direction.
As shown in Figure 5, bar 13 flexibly supports to the front end face of slip chassis 2 by the elastic component 12 such as spring etc., and direction along guided plate 7 is outstanding all the time to make it.Fixed claw unit 10 is attached to the front end of bar 13, and claw 6 is supported on the fixed claw unit 10.Thereby, slip chassis 2 by drive division 3 under the situation that the direction of guided plate 7 moves forward, claw 6 is moved forward to the position between handle S and the end cap T.
As shown in Figure 4, claw 6 extends along the axis direction that is orthogonal to handle S, and the fixed claw 6a that closely contacts with the bottom of handle S when moving forward with constitute with the tight movable claw 6b that contacts in the upper end of end cap T.In fixed claw 6a and movable claw 6b, be formed for introducing the U-shaped groove of the notch 6c of handle.Fixed claw 6a is fixed to the front end of fixed claw unit 10, and pivotally is connected on the fixed claw unit 10 by axle 11 with the leading section of the whole lever 5 that is provided with of the rear side of movable claw 6b.Thereby movable claw 6b can be with respect to fixed claw 6a around axle 11 foldings as the scissors.
More at large say so and form a kind of like this structure, form the end mounting pipe S2 of portion of taper in the bottom of handle S by stage portion S1, pawl 6 is inserted into the T1 of upper end-face edge portion that is installed to the end cap T1 on the end mounting pipe S2 of portion and the gap between the stage portion S1, the upper surface of fixed claw 6a is closely contacted with stage portion S1, the lower surface of movable claw 6b is closely contacted with the T1 of upper end-face edge portion.
The downward cam path 9 in front side is arranged in the two side of slip chassis 2, and cam follower 5a is arranged on the rearward end of the lever 5 that extends to movable claw 6b rear side, and its two ends and cam path 9 are suitable.As mentioned above, the rearward end of lever 5 engages with cam path 9, and its front portion pivotally is connected on the fixed claw unit 10 by axle 11.Therefore, if slip chassis 2 further moves forward in elasticity of compression member 12 by drive division 3 after the position that claw 6 is moved forward between handle S and the end cap T, and the distance between fixed claw unit 10 and the slip chassis 2 is close, then as shown in Figure 7, cam follower 5a is guided by cam path 9, lever 5 rotates, so the movable claw 6b of lever front end is suitable for being pushed down.
In this case, fixed claw unit 10 is provided with brake component sheet 14, it is closely contacted with guided plate 7, in order to stop the further reach of fixed claw unit 10, can regulate the distance that fixed claw unit 10 moves forward by this arrestment mechanism, and can accurately locate all the time claw 6 with respect to the handle S that inserts the patchhole 7a on the guided plate 7.
In addition, as shown in Figure 5, sensor 15 is attached on the fixed claw unit 10 or near the fixed claw unit 10.Set sensor 15 is used for checking whether handle S normally is inserted among the patchhole 7a of guided plate 7, and whether end cap T is separated fully.Therefore, can be reliably and stably separate end cap.As sensor 15, for example can adopt the sensor of the optical type of forming by optical transmitting set and optical receiver.
Below, illustrated with reference to the operation of 5 to 7 pairs of these devices of accompanying drawing.
At first, as shown in Figure 5, device according to the present invention is moved by mechanical arm, and handle S is inserted among the patchhole 7a of guided plate 7.Then, start drive division 3, slip chassis 2 moves forward towards handle S along guide rail 4.When moving with this, the fixed claw unit 10 that is arranged at bar 13 front ends moves forward, and claw 6 enters the position between handle S and the end cap T.At this moment, fixed claw 6a and movable claw 6b are in whole overlapping state, and the upper surface of fixed claw 6a is closely contacted with handle S, and the lower surface of movable claw 6b is closely contacted with end cap T.
Then, as shown in Figure 6, brake component sheet 14 and guided plate 7 are closely contacted to stop fixed claw unit 10 further to move forward.At this moment, by patchhole 7a on the guided plate 7 and the groove of the notch 6c on the claw 6, handle S always is in vertical position.Further, elasticity of compression member 12 when if slip chassis 2 moves forward, as shown in Figure 7, the cam follower 5a of lever 5 is guided by cam path 9 and rises gradually, lever 5 is 11 rotations around the hinge portion, and the movable claw 6b of lever front end is pushed down along the direction of separating with fixed claw 6a.As a result, end cap T separates from handle S at an easy rate.
As mentioned above, according to based on device of the present invention, be different from a lever and be inserted into the conventional structure that the position between end cap T and the handle S is used to pry open, the present invention is by using by finishing lock out operation with two pawls that the tight fixed claw 6a that contacts in the bottom of handle S can form with the movable claw 6b that the rotation of lever 5 is consistently rotated with closely contacting with the upper end of end cap T, as shown in Figure 4.Therefore, can apply axial active force to the position between end cap T and the handle S, and can separate end cap T from handle S reliably.In addition, owing to form the structure of state handle S is in be fixed pawl 6a clamping, movable claw 6b only puts on end cap T to the active force that presses down, and does not therefore damage the risk of handle S.By after separating end cap T in the above described manner, slip chassis 2 moves backward to position as shown in Figure 5, repeats identical operations afterwards.
In addition, since be used for checking handle S whether normally insert the patchhole 7a of guided plate 7 and end cap T whether fully separated sensor 15 be attached near fixed claw unit 10 or the fixed claw unit 10, therefore can separate end cap reliably, can separate under the situation of failing at end cap and detect wrong generation, and can take appropriate measures according to error signal from sensor 15.
Under the situation as shown in Figure 8, self-evident, can be arranged to vertical a pair of device according to device of the present invention and use to separate two such modes of end cap simultaneously.Can be applied to handle S is fixed the state that is attached to fixed position on the mechanical arm with end cap T under, separate the system of end cap T according to device of the present invention, and carry this device by mechanical arm and separate any system in the system of end cap one by one.
Below the second embodiment of the present invention is illustrated.
Fig. 9 is the front view that shows device according to a second embodiment of the present invention; Figure 10 is the front view that shows the mode of operation of this device; Figure 11 is a plane.In the following description, identical with first embodiment reference number is used to identical part.
Because according to a second embodiment of the present invention device is intended to obtain compact size and weight reduction, this device can use according to all kinds, such as the said fixing type, for the oscillating-type of rest point swing and type hand-manipulated etc.In addition, can carry out the separating treatment process reposefully handle S and end cap T not being applied under any horizontal, situations direction of rotation or other impulsive forces.
Among Fig. 9, reference number 16 expression casing shape apparatus main bodies.The claw 6 that the front surface side setting of apparatus main body 16 is made of fixed claw 6a and movable claw 6b.Fixed claw 6a flatly is fixed to the front surface side of apparatus main body 16, and movable claw 6b pivotally is connected to the front surface side of apparatus main body 16 by axle 11.Reference number 5 expressions extend to the lever of movable claw 6b rear side.
Device according to second embodiment is not used in the drive division 3 that moves forward claw 6 towards handle S, and by moving of mechanical arm, the fixed position with handle S moves forward to claw 6 moves forward afterwards hereinafter the sliding panel of narrating 17 is come lifting lever 5.At this moment, take the mode identical, fixed claw 6a is closely contacted with the bottom of handle S, movable claw 6b is closely contacted with the upper end of end cap T with first embodiment.
The inside of apparatus main body 16 is provided with wedge shape sliding panel 17, is used for behind the fixed position of the groove of the notch 6c that handle S and end cap T is moved forward to claw 6 to push the such mode rotating lever 5 of movable claw 6b.Sliding panel 17 is configured to can be by moving before and after the drive unit 18 of the cylinder that is installed in rear side etc. is on guide rail 19.The front surface side of sliding panel 17 forms inclined downward 17a forward, and the roller 5b that is configured to lever 5 ends moves on inclined-plane 17a.
As mentioned above,, can obtain the purpose of compact dimensions and weight saving, and can obtain that component count reduces and the effect of structure economics by claw 6 is arranged in a straight line with the drive division 18 such as cylinder etc.
Using under the driving situation of mechanical arm etc., after the fixed position in the groove of the notch 6c that handle S and end cap T is moved forward to claw 6, by to push movable claw 6b active force vertically being applied to the lower surface of handle S and the upper surface of end cap T by drive division 18 rotating levers 5, therefore can easily separate end cap T, make the load that affacts on the bonding machine main body little simultaneously.In addition, under the situation of silent oscillation impedance bonding machine, behind the fixed position that this device is moved to handle S and end cap T, the rotating lever 5 by moving forward sliding panel 17 makes movable claw 6b move down and make end cap T to separate.
In the present embodiment, the rear portion of lever 5 by such as the elastic component 20 of spring etc. so that it closely contacts such mode reinforcing with inclined-plane 17a all the time, thereby fixed claw 6a is closely contacted mutually with movable claw 6b, prevent that simultaneously lever 5 is unsteady.In the illustrated embodiment, the rear portion of lever 5 is connected by elastic component 20 with sliding panel 17, yet this structure also can realize like this, such as spring etc. be used for afterburning all the time elastic component by from the last end face of apparatus main body 16 towards lever 5 installations.
In addition, can be used for checking handle S whether normally be inserted into pawl and end cap T whether separated sensor be attached on the apparatus main body 16 or near the apparatus main body 16.Thereby can be reliably and stably separate end cap.
In this case, the structure of claw 6 is identical with structure as shown in Figure 4, and claw 6 has the structure identical with first embodiment aspect following, aspect fixed claw 6a that to be claw 6 closely contact by the bottom that makes itself and handle S and the tight movable claw 6b that contacts and can rotate in concert with the rotation of lever 5 in its upper end with end cap T is constituted, when handle S is set at state by fixed claw 6a clamping, claw 6 only puts on the active force that pushes away of movable claw 6b downwards on the end cap T, is the groove of the notch 6c that is formed for introducing handle on claw 6 on the other hand.
Below, with reference to Fig. 9 and Figure 10 the operation that separates end cap T according to the device of second embodiment is illustrated.At first, by whole device or the mobile welding gun that moves as shown in Figure 9 handle S is inserted among the groove of the notch 6c of claw 6.At this moment, fixed claw 6a and movable claw 6b are in overlapping state, and the upper surface of fixed claw 6a is closely contacted with the bottom of handle S, and the lower surface of movable claw 6b is closely contacted with the upper end of end cap T.
Secondly, as shown in figure 10, start drive division 18, the sliding panel 17 that is attached on the bar 18a moves forward along guide rail 19.Based on the reach of sliding panel 17, the rearward end of lever 5 rises gradually along inclined-plane 17a, and lever 5 rotates around axle 11, and the movable claw 6b that is arranged on lever 5 front ends is pushed downwards, the result, and end cap T is separated from handle S at an easy rate.
As mentioned above, different with the conventional system of prying open by a lever of leverage principle type, according to device of the present invention, the active force that is in vertical direction (axially) substantially can be applied in the position between handle S and the end cap T, therefore just can separate end cap T reliably with less power.In addition, because the upper surface of fixed claw 6a is in and the tight state of contact in the bottom of handle S, so do not damage the risk of handle S.With end cap T after separating, sliding panel 17 is got back to initial position in the above described manner, repeats identical operations thereafter.
In addition, if be used for checking handle S whether normally be inserted into pawl and end cap T whether separated sensor 15 be attached on the apparatus main body 16 or near the apparatus main body 16, then can be reliably and stably separate end cap, and can be based on from the error signal of sensor 9 mistake that is reflected being made reliable reply.
In this case, narration has above provided the situation according to device of the present invention of using, yet self-evident as shown in figure 12, this device can use like this, and two devices are arranged to a pair of two end caps that are used for separating simultaneously up and down.
From above-mentioned explanation, can obviously find out, according to device of the present invention, can be easy, reliably with stably separate the end cap T that is installed to handle S front end, and do not damage handle S, can obtain to reach the fabulous advantage that increases the service life and reduce operating cost.
Claims (1)
1. the cap tip removing device of welding machine of the end cap of a handle leading section that is used to separate be installed to bonding machine is characterized in that, this cap tip removing device of welding machine comprises:
Case shape apparatus main body;
Fixed claw, this fixed claw edge moves forward with the direction of the axis direction quadrature of handle, closely to contact with the bottom of handle;
Movable claw, this movable claw and described fixed claw are overlapping, and move forward together, closely to contact with the upper end of end cap; With
Rotating mechanism, this rotating mechanism is used to rotate the lever that extends to described movable claw rear side, makes it to separate separating end cap thereby push described movable claw from handle with on above-below direction, keeping motionless fixed claw,
Wherein rotating mechanism is provided with the wedge shape sliding panel, and behind the position that will be moved forward to by the claw that fixed claw and movable claw constitute between handle and the end cap, described rotating mechanism moves forward pushing the mode rotating lever of movable claw based on described wedge shape sliding panel,
Fixed claw flatly is fixed to the front surface side of described apparatus main body,
Movable claw pivotally is connected to the front surface side of described apparatus main body by axle,
The inside of described apparatus main body is provided with described wedge shape sliding panel.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004176469A JP4412653B2 (en) | 2004-06-15 | 2004-06-15 | Cap chip removal device |
| JP2004176470A JP4412654B2 (en) | 2004-06-15 | 2004-06-15 | Cap chip removal device |
| JP176469/2004 | 2004-06-15 | ||
| JP176470/2004 | 2004-06-15 | ||
| PCT/JP2004/011688 WO2005123321A1 (en) | 2004-06-15 | 2004-08-13 | Cap tip removing device of welding machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1905984A CN1905984A (en) | 2007-01-31 |
| CN1905984B true CN1905984B (en) | 2010-04-28 |
Family
ID=35769684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004800405479A Active CN1905984B (en) | 2004-06-15 | 2004-08-13 | Cap tip removing device of welding machine |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4412653B2 (en) |
| CN (1) | CN1905984B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5153644B2 (en) * | 2006-11-21 | 2013-02-27 | 新光機器株式会社 | Swing type electrode tip changer |
| JP5251649B2 (en) * | 2009-03-19 | 2013-07-31 | スズキ株式会社 | Spot welding tip removal device |
| JP5528163B2 (en) * | 2010-03-08 | 2014-06-25 | 新光機器株式会社 | Electrode tip removal device |
| KR101216192B1 (en) * | 2012-07-31 | 2012-12-28 | 이승해 | Apparatus for changing welding tip of a spot welding gun |
| JP6456399B2 (en) * | 2014-10-27 | 2019-01-23 | 新光機器株式会社 | Cap chip removal device |
| CN107968166B (en) * | 2017-11-29 | 2020-09-04 | 浙江钱江锂电科技有限公司 | Separation system of explosion-proof cap |
| CN116021252A (en) * | 2023-03-29 | 2023-04-28 | 中电科风华信息装备股份有限公司 | Automatic uncapping device for B-pillar camera and operation method thereof |
-
2004
- 2004-06-15 JP JP2004176469A patent/JP4412653B2/en not_active Expired - Lifetime
- 2004-08-13 CN CN2004800405479A patent/CN1905984B/en active Active
Non-Patent Citations (4)
| Title |
|---|
| JP特开2002-239749A 2002.08.28 |
| JP特开2002-346759A 2002.12.04 |
| JP特开2002-79382A 2002.03.19 |
| JP特开平7-171686A 1995.07.11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4412653B2 (en) | 2010-02-10 |
| CN1905984A (en) | 2007-01-31 |
| JP2006000859A (en) | 2006-01-05 |
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