CN211840713U

CN211840713U - Welding gun clamping device

Info

Publication number: CN211840713U
Application number: CN202020031083.1U
Authority: CN
Inventors: 周伦; 张锋; 刘晓文; 张倩; 尹铁; 马志锋; 张毅; 王新升; 张建平; 刘实睿
Original assignee: China National Petroleum Corp; China Petroleum Pipeline Engineering Corp; Pipeline Research Institute of CNPC
Current assignee: China National Petroleum Corp; China Petroleum Pipeline Engineering Corp; Pipeline Research Institute of CNPC
Priority date: 2020-01-07
Filing date: 2020-01-07
Publication date: 2020-11-03
Anticipated expiration: 2030-01-07

Abstract

The application discloses welder clamping device belongs to the welding technology field. The device comprises: the clamping device comprises a handle, a clamping piece, a clamping block and a first bolt; the clamping piece is provided with a first through hole, a second pore passage in the first through hole is positioned between the first pore passage and the third pore passage, and the pore diameter of the second pore passage is smaller than the pore diameter of the first pore passage and the pore diameter of the third pore passage; the clamping block is positioned in the first pore channel; the diameters of the second parts in the first bolts are larger than the diameters of the first parts and the diameters of the second pore passages; the first end of the first part is in threaded connection with the clamping block, the part of the first part, which is connected with the second part, is positioned in the third pore channel, and the first end of the second part is connected with the handle; the clamping piece is provided with a second through hole, a communication opening is formed between the second through hole and the first pore channel, and the designated part in the clamping block can pass through the communication opening when moving in the first pore channel; the second through hole is used for placing a welding gun, and the clamping piece is used for connecting the welding trolley. Therefore, the welding gun can be installed simply and quickly.

Description

Welding gun clamping device

Technical Field

The application relates to the technical field of welding, especially, relate to a welder clamping device.

Background

With the construction of long oil and gas pipelines with high steel grade, large caliber and large wall thickness, the all-position automatic welding equipment for the pipelines becomes the main equipment for pipeline construction due to the factors of high welding speed, high welding quality, high automation degree and the like. The automatic all-position pipeline welding equipment comprises a welding gun, a welding trolley and the like, wherein the welding gun is arranged on the welding trolley.

At present, when a welding gun is installed on a welding trolley, the welding gun is firstly placed in a U-shaped block on the welding trolley, then one end of a bolt sequentially penetrates through two sides of the U-shaped block and then is connected with a nut, and then the nut is screwed in towards the direction close to the other end of the bolt so as to draw the distance between the two sides of the U-shaped block, so that the welding gun can be clamped by the U-shaped block.

However, the installation process of the welding gun is complex and the speed is slow, so that the installation efficiency of the welding gun is low, and the working efficiency of the automatic all-position pipeline welding equipment is low.

SUMMERY OF THE UTILITY MODEL

The application provides a welding gun clamping device, which can solve the problem that the working efficiency of the automatic all-position pipeline welding equipment in the related art is low. The technical scheme is as follows:

in a first aspect, an embodiment of the present application provides a welding gun clamping device, where the device includes: the clamping device comprises a handle, a clamping piece, a clamping block and a first bolt;

the clamping piece is provided with a first through hole in the transverse direction, the first through hole comprises a first pore passage, a second pore passage and a third pore passage, the second pore passage is positioned between the first pore passage and the third pore passage, and the aperture of the second pore passage is smaller than that of the first pore passage and smaller than that of the third pore passage;

the clamping block is positioned in the first pore channel; the first bolt comprises a first portion and a second portion, the diameter of the second portion is larger than the diameter of the first portion and larger than the bore diameter of the second duct; the first part passes through the second hole channel, the first end of the first part is in threaded connection with the clamping block, the part where the first part is connected with the second part is positioned in the third hole channel, and the first end of the second part is connected with the handle;

the clamping piece is provided with a second through hole in the longitudinal direction, a communication opening is formed between the second through hole and the first pore channel, and the designated part in the clamping block can pass through the communication opening when moving in the first pore channel; the second through hole is used for placing a welding gun, and the clamping piece is used for connecting a welding trolley.

Optionally, the device further comprises a gear;

the gear is connected with the first end of the second portion, a tooth groove is formed in the handle, and gear teeth of the gear are located in the tooth groove.

Optionally, the apparatus further comprises a second bolt;

the handle is provided with a third through hole, the third through hole comprises a fourth pore channel and a fifth pore channel, the aperture of the fifth pore channel is smaller than that of the fourth pore channel and smaller than the diameter of the gear, the fourth pore channel is positioned between the clamping piece and the fifth pore channel, and the tooth socket is arranged in the fourth pore channel;

the gear is located in the fourth hole, a groove is formed in the end face of the gear, a screw of the second bolt penetrates through the fifth hole and then is in threaded connection with the groove, and a nut of the second bolt is larger than the hole diameter of the fifth hole.

Optionally, the third through hole further includes a sixth hole channel, the fifth hole channel is located between the fourth hole channel and the sixth hole channel, and the aperture of the sixth hole channel is larger than the aperture of the fifth hole channel; the nut of the second bolt is located in the sixth hole.

Optionally, the end surface of the handle abuts against an outer wall of the clamping member.

Optionally, a first ring-shaped member is arranged on the clamping member, and the first ring-shaped member is used for being connected with the welding trolley.

Optionally, the device further comprises an adjusting block, a third bolt and a second ring-shaped member;

a fifth through hole is formed in the adjusting block in the longitudinal direction, and the first annular piece penetrates through the fifth through hole;

a notch is formed in the position between the hole wall of the fifth through hole and the outer wall of the adjusting block in the longitudinal direction, a sixth through hole is formed in the transverse direction, and the fifth through hole and the sixth through hole are communicated with the notch;

the sixth through hole comprises a seventh hole channel and an eighth hole channel, the notch is positioned between the seventh hole channel and the eighth hole channel, and the rod part of the third bolt sequentially penetrates through the seventh hole channel and the notch, is positioned in the eighth hole channel and is in threaded connection with the hole wall of the eighth hole channel;

the first end of the second ring-shaped piece is connected with the outer wall of the adjusting block, and the second end of the second ring-shaped piece is connected with the welding trolley.

Optionally, the device further comprises an adjusting block, a third bolt, a nut and a second ring-shaped member;

one end of the third bolt penetrates through the sixth through hole and the notch and then is connected with the nut;

Optionally, the adjusting block includes a fifth portion and a sixth portion, the fifth portion is provided with the fifth through hole, the sixth through hole and the notch, the sixth portion is connected to the first end of the second ring member, and the fifth portion and the sixth portion are L-shaped.

Optionally, the designated portion has a chamfer.

The technical scheme provided by the application can at least bring the following beneficial effects:

because the clamping piece is connected with the welding trolley, the position of the clamping piece is fixed. And the first end of the first part of the first bolt penetrates through the second pore channel on the clamping piece to be in threaded connection with the clamping block, and the first end of the second part of the first bolt is connected with the handle, so that when the handle is shaken, the first bolt can be driven to rotate, and the first bolt can drive the clamping block to move in the first pore channel after rotating until the designated part in the clamping block penetrates through the communicating port, is positioned in the second pore channel and is contacted with the welding gun. And then, the handle is continuously rotated to drive the clamping block to continuously move, the designated part pushes the welding gun to move in the second through hole until the welding gun is clamped between the designated part and the hole wall of the second through hole and cannot move, and the position of the welding gun is fixed at the moment. Like this, can install welder on the welding carriage simply, fast, and this welder clamping device's structural design is compact, and the clamp force to the welder is also comparatively reliable. In addition, the welding gun clamping device is simple in structural design and easy to maintain.

Drawings

FIG. 1 is a schematic structural diagram of a first welding gun clamping device according to an embodiment of the present disclosure;

FIG. 2 is a cross-sectional view of a first torch holding device according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of a first bolt and a gear according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a handle provided in an embodiment of the present application;

FIG. 5 is a cross-sectional view of a second torch holding device according to an embodiment of the present disclosure;

FIG. 6 is a cross-sectional view of a third torch holding device according to an embodiment of the present disclosure;

FIG. 7 is a cross-sectional view of a fourth torch holding device according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a fifth torch clamping device according to an embodiment of the present disclosure;

FIG. 9 is a cross-sectional view of a fifth torch holding device according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of a sixth welding gun clamping device according to an embodiment of the present disclosure;

fig. 11 is a schematic structural diagram of a seventh welding gun clamping device according to an embodiment of the present application.

Reference numerals:

1: a handle; 11: a third through hole; 111: a fourth hole of the third through hole; 112: a fifth duct of the third through hole; 113: a sixth pore passage of the third pore passage; 12: a tooth socket; 13: an end face of the handle; 2: a clamping member; 21: a first through hole; 211: a first hole of the first through-hole; 212: a second hole of the first through-hole; 213: a third hole of the first through-hole; 22: a second through hole; 221: a communication port; 3: a clamping block; 31: a designated location in the clamping block; 32: a fourth through hole on the clamping block; 4: a first bolt; 41: a first portion of a first bolt; 411: a first end of the first portion; 42: a second portion of the first bolt; 421: a first end of the second portion; 5: a gear; 51: gear teeth of the gear; 6: a second bolt; 61: a screw of the second bolt; 62: a nut of the second bolt; 7: a first annular member; 8: an adjusting block; 81: cutting; 82: a location on an outer wall of the conditioning block; 83: a fifth portion of the adjustment block; 84: a sixth portion of the adjustment block; 9: a third bolt; 91: one end of a third bolt; 10: a second ring-shaped member; 101: a first end of a second annular member; 102: a second end of the second annular member; 14: and a nut.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a welding gun clamping device according to an embodiment of the present disclosure, and fig. 2 is a sectional view of fig. 1. Referring to fig. 1 and 2, the apparatus includes: the handle 1, the clamping piece 2, the clamping block 3 and the first bolt 4; the holder 2 is provided with a first through hole 21 in the transverse direction, the first through hole 21 includes a first hole passage 211, a second hole passage 212 and a third hole passage 213, the second hole passage 212 is located between the first hole passage 211 and the third hole passage 213, and the aperture of the second hole passage 212 is smaller than that of the first hole passage 211 and smaller than that of the third hole passage 213; the clamping block 3 is located in the first hole channel 211; the first bolt 4 comprises a first portion 41 and a second portion 42, the diameter of the second portion 42 being greater than the diameter of the first portion 41 and greater than the bore diameter of the second porthole 212; the first part 41 passes through the second hole channel 212, the first end 411 of the first part 41 is in threaded connection with the clamping block 3, the part where the first part 41 is connected with the second part 42 is positioned in the third hole channel 213, and the first end 421 of the second part 42 is connected with the handle 1; the clamping piece 2 is provided with a second through hole 22 in the longitudinal direction, a communication opening 221 is formed between the second through hole 22 and the first hole channel 211, and the designated part 31 in the clamping block 3 can pass through the communication opening 221 when moving in the first hole channel 211; the second through hole 22 is used for placing a welding gun, and the clamping piece 2 is used for connecting a welding trolley.

The handle 1 is a member for rotating the first bolt 4. The size and shape of the handle 1 can be preset according to the use requirement, and the embodiment of the present application does not specifically limit this.

The holder 2 is a member for holding a welding gun. The size and the material of the clamping piece 2 can be preset according to the use requirement, for example, the material of the clamping piece 2 can be alloy, stainless steel and the like.

The clamping block 3 is a member for clamping the welding gun. The size and material of the clamping block 3 can be preset according to the use requirement, as long as the designated portion 31 of the clamping block 3 can pass through the communication port 221 when moving in the first duct 211. The fact that the designated portion 31 of the clamp block 3 can pass through the communication port 221 when moving in the first port passage 211 means that the designated portion 31 thereof can pass through the communication port 221 and then be positioned in the second through hole 22 when the clamp block 3 moves in the first port passage 211.

The designated portion 31 is a portion for abutting against the welding gun, and is a clamping end of the clamping block 3. The shape and size of the designated portion 31 can be preset according to the use requirement. For example, the designated portion 31 may have a chamfer, i.e. the end surface of the clamping end of the clamping block 3 is an inclined surface, so that the designated portion 31 can be better attached to the welding gun and can be better supported on the welding gun.

Then, the first bolt 4 is a member for moving the clamp block 3. The size of the first bolt 4 can be preset according to the use requirement, as long as the diameter of the second part 42 in the first bolt 4 is ensured to be larger than the diameter of the first part 41 and larger than the bore diameter of the second hole 212.

It should be noted that, since the portion where the first portion 41 and the second portion 42 are connected is located in the third hole 213, and the diameter of the second portion 42 is larger than the diameter of the second hole 212, when the first bolt 4 rotates, the second portion 42 is restricted by the hole wall of the third hole 213 and rotates in place, and thus the first portion 41 also rotates in place. Since the first end 411 of the first portion 41 is threadedly connected to the clamping block 3, the rotation of the first portion 41 will drive the clamping block 3 to move linearly in the first hole 211.

In practical application, when the welding gun clamping device is used, the clamping piece 2 can be connected with a welding trolley, then a welding gun is placed in the second through hole 22, then the handle 1 is shaken, the first bolt 4 is driven to rotate through the handle 1, and the first bolt 4 can drive the clamping block 3 to move in the first hole channel 211 after rotating until the designated part 31 in the clamping block 3 passes through the communication port 221 and then is located in the second through hole 22 and contacts with the welding gun. And then, the handle 1 is continuously rotated to drive the clamping block 3 to continuously move, at the moment, the designated part 31 pushes the welding gun to move in the second through hole 22 until the welding gun is clamped between the designated part 31 and the hole wall of the second through hole 22 and cannot move, and at the moment, the position of the welding gun is fixed. Like this, can install welder on the welding carriage simply, fast, and this welder clamping device's structural design is compact, and the clamp force to the welder is also comparatively reliable. In addition, the welding gun clamping device is simple in structural design and easy to maintain.

It is worth noting that when a welding gun clamped by the clamping piece 2 needs to be disassembled, the handle 1 can be shaken reversely, the handle 1 drives the first bolt 4 to rotate reversely, the first bolt 4 can drive the clamping block 3 to move reversely in the first duct 211 after rotating reversely, and at the moment, the designated part 31 in the clamping block 3 can move towards the direction far away from the welding gun until the designated part 31 is completely positioned in the first duct 211 and then is not in contact with the welding gun. The torch may then be removed from the second through-hole 22 to effect removal of the torch.

Optionally, referring to fig. 3, 4 and 5, the device further comprises a gear 5; the gear 5 is connected to the first end 421 of the second portion 42, the handle 1 is provided with a tooth space 12, and the teeth 51 of the gear 5 are located in the tooth space 12.

It should be noted that the gear 5 is a member for connecting the second portion 42 and the handle 1, and the handle 1 can drive the first bolt 4 to rotate through the gear 5. The size, material, etc. of the gear 5 may be preset according to the use requirement, and for example, the material of the gear 5 may be stainless steel, alloy, etc.

In addition, the number of the tooth grooves 12 may be multiple, and the multiple tooth grooves 12 are respectively in one-to-one correspondence with the multiple gear teeth 51 of the gear 5, that is, one gear tooth 51 is located in the corresponding one tooth groove 12.

Specifically, when connecting the first end 421 of the second portion 42 to the handle 1, a gear 5 can be connected to the first end 421 of the second portion 42, and then the handle 1 is sleeved on the gear 5, and the teeth 51 of the gear 5 are ensured to be located in the teeth slots 12 in the handle 1. In this way, the second portion 42 can be separated from the handle 1 by the gear 5, so that the handle 1 can be easily detached.

Optionally, referring to fig. 6, the device further comprises a second bolt 6; the handle 1 is provided with a third through hole 11, the third through hole 11 comprises a fourth pore passage 111 and a fifth pore passage 112, the aperture of the fifth pore passage 112 is smaller than that of the fourth pore passage 111 and smaller than the diameter of the gear 5, the fourth pore passage 111 is positioned between the clamping piece 2 and the fifth pore passage 112, and a tooth groove 12 is arranged in the fourth pore passage 111; the gear 5 is located in the fourth duct 111, a groove is formed in the end face of the gear 5, the screw 61 of the second bolt 6 penetrates through the fifth duct 112 and then is in threaded connection with the groove, and the nut 62 of the second bolt 6 is larger than the aperture of the fifth duct 112.

The second bolt 6 is a member for fastening the handle 1. The size of the second bolt 6 can be preset according to the use requirement, as long as it is ensured that the diameter of the screw 61 of the second bolt 6 is smaller than the aperture of the fifth hole 112, the diameter of the nut 62 of the second bolt 6 is larger than the aperture of the fifth hole 112, and the length of the second bolt 6 is larger than the length of the fifth hole 112.

In addition, the depth of the groove can be preset according to the use requirement, as long as the screw 61 of the second bolt 6 can be connected with the groove through the thread after passing through the fifth pore passage 112.

Furthermore, since the screw 61 of the second bolt 6 passes through the fifth hole 112 and then is connected with the groove by screw thread, and the nut 62 of the second bolt 6 is larger than the hole diameter of the fifth hole 112, the nut 62 of the second bolt 6 can be located outside the fifth hole 112. In this way, one end of the second bolt 6 is connected to the gear 5, and the other end is caught on the handle 1, so that the gear 5 and the handle 1 can be fastened together.

Specifically, after the tooth grooves 12 in the handle 1 are engaged with the gear teeth 51 of the gear 5, the screw 61 of the second bolt 6 may be passed through the fifth hole 112 to contact the groove on the end surface of the gear 5, and then the second bolt 6 may be rotated so that the screw 61 of the second bolt 6 is screwed into the groove. In this way, the connection between the handle 1 and the gear wheel 5 can be made more secure, so that the handle 1 does not disengage from the gear wheel 5 when the handle 1 is turned.

Optionally, referring to fig. 7, third via 11 further includes a sixth via 113, fifth via 112 is located between fourth via 111 and sixth via 113, and sixth via 113 has a larger pore size than fifth via 112; the nut 62 of the second bolt 6 is located in the sixth aperture 113.

In this case, after the screw 61 of the second bolt 6 passes through the fifth hole 112 in the handle 1 and is screwed into the groove, the nut 62 of the second bolt 6 is located in the sixth hole 113. In this way, one end of the second bolt 6 is connected to the gear 5, and the other end is clamped in the sixth hole 113 in the handle 1, so that the gear 5 and the handle 1 can be fastened together.

It should be noted that, because the nut 62 of the second bolt 6 is located in the sixth hole 113, when the second bolt 6 is placed into the third through hole 11, the second bolt 6 will completely enter the third through hole 11, so that the scratching accident caused by the second bolt 6 in the process of rotating the handle 1 can be reduced.

Optionally, referring to fig. 5, 6 or 7, the end face 13 of the handle 1 abuts the outer wall of the grip 2.

It should be noted that, because the end surface 13 of the handle 1 is attached to the outer wall of the clamping member 2, the position of the first bolt 4 connected to the handle 1 in the first through hole 21 can be relatively horizontal, so that the contact between the first bolt 4 and the hole wall of the first through hole 21 in the rotation process can be reduced, and the friction between the first bolt 4 and the hole wall of the first through hole 21 in the rotation process can be reduced.

Further, in order to facilitate the threaded connection between the first end 411 of the first portion 41 and the clamping block 3, referring to fig. 2, 5, 6, 7 or 9, the clamping block 3 is provided with a fourth through hole 32, and the first end 411 of the first portion 41 is located in the fourth through hole 32 and is in threaded connection with a hole wall of the fourth through hole 32.

It should be noted that the first end 411 of the first part 41 is provided with an external thread, and the hole wall of the fourth through hole 32 is provided with an internal thread matching the external thread of the first end 411 of the first part 41.

In addition, the bore diameter of the fourth bore 32 is larger than the diameter of the first end 411 of the first portion 41, for example, the bore diameter of the fourth bore 32 may be different from the diameter of the first end 411 of the first portion 41 by 1mm, 2mm, etc.

It is noted that the first end 411 of the first portion 41 is located in the fourth through hole 32 and is screwed with the hole wall of the fourth through hole 32, so that the screwing of the clamping block 3 with the first end 411 of the first portion 41 is more secure. Thus, when the welding gun is clamped by using the welding gun clamping device, the clamping block 3 can be ensured to move under the driving of the first end 411 of the first part 41.

Optionally, referring to fig. 8 and 9, a first ring 7 is provided on the clamping member 2, the first ring 7 being adapted to be connected to a welding carriage.

The first ring 7 is a member for connecting the holder 2 to the welding carriage. The size and the material of the first annular member 7 can be preset according to the use requirement, for example, the material of the first annular member 7 can be alloy, stainless steel, and the like. Because first ring member 7 is hollow structure, when connecting holder 2 and welding dolly through first ring member 7, can guarantee that the weight that bears on the welding dolly is lighter.

In addition, the first ring member 7 and the clamping member 2 may be integrally formed or welded, and this is not particularly limited in the embodiments of the present application.

Specifically, when the clamping member 2 is connected with the welding trolley, the first ring-shaped member 7 arranged on the clamping member 2 can be connected with the welding trolley. Therefore, the connecting mode between the clamping piece 2 and the welding trolley is simpler, and the installation speed of the welding gun can be increased.

Further, in order to improve the welding quality of the welding gun, the welding gun clamping device can also comprise the following two possible structures.

A first possible configuration: referring to fig. 10, the device further comprises an adjustment block 8, a third bolt 9 and a second ring 10; a fifth through hole is formed in the adjusting block 8 in the longitudinal direction, and the first annular piece 7 penetrates through the fifth through hole; a notch 81 is arranged in the longitudinal direction of a part 82 between the hole wall of the fifth through hole and the outer wall of the adjusting block 8, a sixth through hole is arranged in the transverse direction of the fifth through hole, and the fifth through hole and the sixth through hole are both communicated with the notch 81; the sixth through hole comprises a seventh hole channel and an eighth hole channel, the notch 81 is positioned between the seventh hole channel and the eighth hole channel, and the rod part of the third bolt 9 sequentially penetrates through the seventh hole channel and the notch 81, is positioned in the eighth hole channel and is in threaded connection with the hole wall of the eighth hole channel; the first end 101 of the second ring 10 is connected to the outer wall of the adjusting block 8, and the second end 102 of the second ring 10 is connected to the welding carriage.

The adjustment block 8 is a member for adjusting the position of the clamp 2. The size and the material of the adjusting block 8 can be preset according to the use requirement, for example, the material of the adjusting block 8 can be stainless steel, alloy, and the like.

The size of the fifth through hole can be preset according to the use requirement, as long as the first annular part 7 can pass through the fifth through hole; the size of the notch 81 can also be preset according to the use requirement, as long as it is ensured that the rod part of the third bolt 9 can pass through the notch 81.

In addition, the third bolt 9 is a member for adjusting the size of the cutout 81. The size of the third bolt 9 can be preset according to the use requirement, as long as it is ensured that the rod part of the third bolt 9 can be located in the sixth through hole.

Moreover, the size of the sixth through hole can be preset according to the use requirement, as long as it is ensured that the aperture of the seventh hole is smaller than the diameter of the nut of the third bolt 9, and the apertures of the seventh hole and the eighth hole are both larger than the diameter of the rod portion of the third bolt 9. The hole wall of the seventh hole is smooth, and the hole wall of the seventh hole is not connected with the rod part of the third bolt 9.

Finally, the second ring 10 is a member for connecting the adjustment block 8 with the welding carriage. The size and material of the second annular member 10 can be preset according to the use requirement, for example, the material of the second annular member 10 can be alloy, stainless steel, etc.

Specifically, when the welding gun is clamped by using the welding gun clamping device, the second end 102 of the second annular member 10 may be connected to the welding trolley, the first annular member 7 is then inserted through the fifth through hole, the rod 91 of the third bolt 9 is then placed into the seventh hole, the rod of the third bolt 9 is sequentially inserted through the seventh hole and the notch 81, and then the third bolt 9 is rotated, so that the rod of the third bolt 9 is in threaded connection with the hole wall of the eighth hole. In this way, the size of the opening of the cutout 81 can be adjusted by screwing the third bolt 9 into the depth of the eighth hole passage.

When the wire feeding resistance of the welding gun during wire feeding is large, the welding gun can provide an acting force for the clamping piece 2, the first annular piece 7 connected with the clamping piece 2 can also receive the acting force, and then the acting force can be transmitted to the hole wall of the fifth through hole through the first annular piece 7 and then transmitted to the notch 81 communicated with the fifth through hole. Because the opening size of incision 81 is adjustable, consequently under the effect of this effort, the opening of incision 81 can grow, and the aperture of fifth through-hole becomes this moment to first loop forming element 7 can move in the fifth through-hole, and clamping piece 2 that is connected with first loop forming element 7 also can move, and then makes the position of the welder that clamping piece 2 held change. Therefore, the wire feeding resistance of the welding gun during wire discharging can be reduced, the wire discharging of the welding gun is smooth, the stability of the welding process is guaranteed, the welding defects are reduced, the welding quality is improved, and the working efficiency of the welding gun is also improved.

It should be noted that when the opening of the notch 81 becomes larger, under the nut restriction of the third bolt 9, it is ensured that the opening of the notch 81 is not too large, that is, the opening size of the notch 81 is much smaller than the diameter of the first ring-shaped member 7, so that it is ensured that the first ring-shaped member 7 is not separated from the fifth through hole.

A second possible configuration: referring to fig. 11, the device further comprises an adjusting block 8, a third bolt 9, a nut 14 and a second ring 10; a fifth through hole is formed in the adjusting block 8 in the longitudinal direction, and the first annular piece 7 penetrates through the fifth through hole; a notch 81 is arranged in the longitudinal direction of a part 82 between the hole wall of the fifth through hole and the outer wall of the adjusting block 8, a sixth through hole is arranged in the transverse direction of the fifth through hole, and the fifth through hole and the sixth through hole are both communicated with the notch 81; one end 91 of the third bolt 9 passes through the sixth through hole and the notch 81 and then is connected with the nut 14; a first end 101 of the second annular element 10 is connected to the outer wall of the adjustment block 8 and a second end 102 of the second annular element 10 is connected to the welding carriage.

In addition, the hole wall of the sixth through hole is smooth, and the third bolt 9 is not connected with the sixth through hole. The size of the sixth through hole can be preset according to the use requirement, as long as the aperture of the sixth through hole is ensured to be smaller than the diameter of the nut of the third bolt 9, and the aperture of the sixth through hole is larger than the diameter of the rod part of the third bolt 9.

The nut 14 is a member that cooperates with the third bolt 9 to perform a fastening function. The third bolt 9 is provided with an external thread, and the nut 14 is provided with an internal thread matched with the external thread of the third bolt 9.

Specifically, when the welding gun is clamped by using the welding gun clamping device, the second end 102 of the second annular member 10 may be connected to the welding trolley, the first annular member 7 may be inserted through the fifth through hole, the end 91 of the third bolt 9 may be inserted through the sixth through hole and the notch 81, and the nut 14 may be sleeved on the end 91 of the third bolt 9 and screwed in a direction close to the other end of the third bolt 9. In this way, the size of the opening of the notch 81 can be adjusted by the screwing distance of the nut 14 to the shaft portion of the third bolt 9.

So, when the resistance of sending a wire when welder goes out the silk is great, welder can give clamping piece 2 an effort, and the first annular member 7 of being connected with clamping piece 2 this moment also can receive this effort, and later this effort can be passed through first annular member 7 and transmitted the pore wall of giving the fifth through-hole, then transmits the incision 81 of giving the fifth through-hole intercommunication. Because the opening size of incision 81 is adjustable, consequently under the effect of this effort, the opening of incision 81 can grow, and the aperture of fifth through-hole becomes this moment to first loop forming element 7 can move in the fifth through-hole, and clamping piece 2 that is connected with first loop forming element 7 also can move, and then makes the position of the welder that clamping piece 2 held change. Therefore, the wire feeding resistance of the welding gun during wire discharging can be reduced, the wire discharging of the welding gun is smooth, the stability of the welding process is guaranteed, the welding defects are reduced, the welding quality is improved, and the working efficiency of the welding gun is also improved.

It should be noted that when the opening of the notch 81 becomes larger, the opening of the notch 81 is not too large under the restriction of the nut and the nut 14 of the third bolt 9, that is, the opening of the notch 81 is much smaller than the diameter of the first ring-shaped member 7, so that the first ring-shaped member 7 is not separated from the fifth through hole.

Further, referring to fig. 10 or 11, in order to facilitate placing the clamping member 2, the adjusting block 8 includes a fifth portion 83 and a sixth portion 84, the fifth portion 83 is provided with a fifth through hole, a sixth through hole and a notch 81, the sixth portion 84 is connected with the first end 101 of the second annular member 10, and the fifth portion 83 and the sixth portion 84 are L-shaped.

It should be noted that, at this time, the fifth portion 83 and the sixth portion 84 of the adjusting block 8 may match the shape of the two adjacent outer walls of the clamping member 2, so that the adjusting block 8 can be tightly attached to the two adjacent outer walls of the clamping member 2, and the clamping member 2 can be better clamped on the adjusting block 8. Therefore, when the adjusting block 8 is connected with the welding trolley, the clamping piece 2 can be ensured to be positioned at the L-shaped included angle formed by the fifth part 83 and the sixth part 84, so that the clamping piece 2 can be better supported by the adjusting block 8, and the technician can conveniently rotate the handle 1 to clamp the welding gun.

In the embodiment of the present application, since the clamping member 2 is connected to the welding carriage, the position of the clamping member 2 is relatively fixed. And because the first end 411 of the first part 41 of the first bolt 4 passes through the second duct 212 on the clamping member 2 to be in threaded connection with the clamping block 3, and the first end 421 of the second part 42 of the first bolt 4 is connected with the handle 1, when the handle 1 is shaken, the first bolt 4 can be driven to rotate, and the clamping block 3 can be driven to move in the first duct 211 after the first bolt 4 rotates until the designated part 31 in the clamping block 3 passes through the communication port 221 and then is positioned in the second through hole 22 and contacts with the welding gun. And then, the handle 1 is continuously rotated to drive the clamping block 3 to continuously move, at the moment, the designated part 31 pushes the welding gun to move in the second through hole 22 until the welding gun is clamped between the designated part 31 and the hole wall of the second through hole 22 and cannot move, and at the moment, the position of the welding gun is fixed. Like this, can install welder on the welding carriage simply, fast, and this welder clamping device's structural design is compact, and the clamp force to the welder is also comparatively reliable. In addition, the welding gun clamping device is simple in structural design and easy to maintain.

The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A welding gun holding apparatus, the apparatus comprising: the clamping device comprises a handle (1), a clamping piece (2), a clamping block (3) and a first bolt (4);

the clamping piece (2) is provided with a first through hole (21) in the transverse direction, the first through hole (21) comprises a first hole channel (211), a second hole channel (212) and a third hole channel (213), the second hole channel (212) is located between the first hole channel (211) and the third hole channel (213), and the aperture of the second hole channel (212) is smaller than that of the first hole channel (211) and smaller than that of the third hole channel (213);

the clamping block (3) is located in the first hole channel (211); the first bolt (4) comprises a first portion (41) and a second portion (42), the diameter of the second portion (42) being greater than the diameter of the first portion (41) and greater than the bore diameter of the second bore (212); the first part (41) passes through the second hole channel (212), a first end (411) of the first part (41) is in threaded connection with the clamping block (3), the part where the first part (41) is connected with the second part (42) is positioned in the third hole channel (213), and a first end (421) of the second part (42) is connected with the handle (1);

the clamping piece (2) is provided with a second through hole (22) in the longitudinal direction, a communication opening (221) is formed between the second through hole (22) and the first hole channel (211), and a designated part (31) in the clamping block (3) can pass through the communication opening (221) when moving in the first hole channel (211); the second through hole (22) is used for placing a welding gun, and the clamping piece (2) is used for connecting a welding trolley.

2. The device according to claim 1, characterized in that it further comprises a gear (5);

the gear (5) is connected with a first end (421) of the second portion (42), a tooth groove (12) is formed in the handle (1), and gear teeth (51) of the gear (5) are located in the tooth groove (12).

3. The device according to claim 2, characterized in that it further comprises a second bolt (6);

a third through hole (11) is formed in the handle (1), the third through hole (11) comprises a fourth hole channel (111) and a fifth hole channel (112), the aperture of the fifth hole channel (112) is smaller than that of the fourth hole channel (111) and smaller than the diameter of the gear (5), the fourth hole channel (111) is located between the clamping piece (2) and the fifth hole channel (112), and the tooth grooves (12) are formed in the fourth hole channel (111);

the gear (5) is located in the fourth pore passage (111), a groove is formed in the end face of the gear (5), the screw (61) of the second bolt (6) penetrates through the fifth pore passage (112) and then is in threaded connection with the groove, and the nut (62) of the second bolt (6) is larger than the aperture of the fifth pore passage (112).

4. The device according to claim 3, wherein the third through hole (11) further comprises a sixth duct (113), the fifth duct (112) being located between the fourth duct (111) and the sixth duct (113), the sixth duct (113) having a larger aperture than the aperture of the fifth duct (112); the nut (62) of the second bolt (6) is located in the sixth aperture (113).

5. A device according to any of claims 1-4, characterized in that the end surface (13) of the handle (1) abuts the outer wall of the holder (2).

6. Device according to claim 1, characterized in that a first ring element (7) is arranged on the clamping element (2), said first ring element (7) being intended to be connected to the welding carriage.

7. A device according to claim 6, characterized in that it further comprises an adjustment block (8), a third bolt (9) and a second annular element (10);

a fifth through hole is formed in the adjusting block (8) in the longitudinal direction, and the first annular piece (7) penetrates through the fifth through hole;

a notch (81) is formed in a position (82) between the hole wall of the fifth through hole and the outer wall of the adjusting block (8) in the longitudinal direction, a sixth through hole is formed in the transverse direction, and the fifth through hole and the sixth through hole are communicated with the notch (81);

the sixth through hole comprises a seventh hole channel and an eighth hole channel, the notch (81) is positioned between the seventh hole channel and the eighth hole channel, and the rod part of the third bolt (9) sequentially penetrates through the seventh hole channel and the notch (81), is positioned in the eighth hole channel and is in threaded connection with the hole wall of the eighth hole channel;

the first end (101) of the second ring-shaped element (10) is connected with the outer wall of the adjusting block (8), and the second end (102) of the second ring-shaped element (10) is connected with the welding trolley.

8. A device according to claim 6, characterized in that it further comprises an adjustment block (8), a third bolt (9), a nut (14) and a second annular element (10);

one end (91) of the third bolt (9) passes through the sixth through hole and the notch (81) and then is connected with the nut (14);

9. Device according to claim 7 or 8, wherein said adjusting block (8) comprises a fifth portion (83) and a sixth portion (84), said fifth portion (83) being provided with said fifth through hole, said sixth through hole and said cut (81), said sixth portion (84) being connected to said first end (101) of said second annular element (10), said fifth portion (83) and said sixth portion (84) being L-shaped.

10. The device according to claim 1, characterized in that the designated area (31) has a chamfer.