CN201323239Y - Earth clamp used for welding - Google Patents

Earth clamp used for welding Download PDF

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Publication number
CN201323239Y
CN201323239Y CNU2008202337908U CN200820233790U CN201323239Y CN 201323239 Y CN201323239 Y CN 201323239Y CN U2008202337908 U CNU2008202337908 U CN U2008202337908U CN 200820233790 U CN200820233790 U CN 200820233790U CN 201323239 Y CN201323239 Y CN 201323239Y
Authority
CN
China
Prior art keywords
welding
main body
shaped main
ground clamp
clamp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2008202337908U
Other languages
Chinese (zh)
Inventor
郭同生
杨闯
赵润泽
张飞龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Datong Co Ltd
Original Assignee
CNR Datong Electric Locomotive Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CNR Datong Electric Locomotive Co Ltd filed Critical CNR Datong Electric Locomotive Co Ltd
Priority to CNU2008202337908U priority Critical patent/CN201323239Y/en
Application granted granted Critical
Publication of CN201323239Y publication Critical patent/CN201323239Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to an earth clamp used for welding, which comprises a C-shaped main body. A threaded hole which is vertical towards the lower end part is arranged at the upper end part of the opening side of the C-shaped main body, a screw rod is screwed in the threaded hole and can rotate up and down, and a fixed connection part which is fixedly connected with an earth wire is arranged on the C-shaped main body. The earth clamp used for welding can avoid the circumstance in prior art that as the fatigue failure is incurred at a spring, the clamping force of the earth wire is not tight, so as to lead poor contact between workpieces and the earth wire, thereby burning the surfaces of the work-pieces at the clamping positions or affecting the welding quality.

Description

Ground clamp for welding
Technical Field
The utility model relates to an appurtenance that uses among the welding process especially relates to a ground clamp for welding.
Background
Welding is a process for manufacturing non-detachable structures by joining two workpieces by applying heat or pressure, with or without fillers. With the development of modern science and technology, welding has developed into an independent science and is widely applied to various fields of national economy. Among them, the ground clamp is an indispensable auxiliary tool for many welding methods such as shielded metal arc welding and gas shielded arc welding.
The ground clamp commonly used at present is generally of a clamp type, wherein a spring is arranged, and the ground clamp clamps a workpiece or a tool through the spring force. Because the ground clamp is electrified in the welding process, the spring is easy to fatigue and lose efficacy after being used for a period of time, and the clamp type ground clamp can lead the clamping force to be unequal due to different shapes of workpieces at the clamping part. In practical application, poor contact is often caused, welding current is unstable in the welding process, welding seam quality and production efficiency are affected, and workpiece surface burn is easily caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a ground clamp is used in welding, this ground clamp centre gripping can be firm on work piece or frock, avoids making welding current unstable and then influencing the condition emergence of welding quality because of the ground wire insecure connection.
Another object of the utility model is to provide a ground clamp for welding, this ground clamp simple structure, reliable durable, convenient to use.
The utility model aims at realizing the ground clamp for welding, which comprises an ㄈ -shaped main body, wherein the upper end part of the opening side of the ㄈ -shaped main body is provided with a threaded hole which is vertically towards the lower end part; a screw rod is screwed in the threaded hole and can rotate up and down; the ㄈ -shaped main body is provided with a fixed connecting part for fixedly connecting the ground wire.
In a preferred embodiment of the present invention, the fixing connection portion is composed of a through hole formed in the ㄈ -shaped main body, a bolt inserted into the through hole, and a nut screwed on the bolt.
In a preferred embodiment of the present invention, a connection terminal is fixed to one end of the ground wire, and the connection terminal is sleeved on the bolt and screwed by the nut.
In a preferred embodiment of the present invention, a protrusion is disposed at an upper end of the opening side of the ㄈ -shaped body, and the threaded hole is disposed through the protrusion.
In a preferred embodiment of the present invention, a supporting block corresponding to the bottom of the screw is disposed at the lower end of the opening side of the ㄈ -shaped body.
In a preferred embodiment of the present invention, a top pressing block is disposed at the bottom of the screw rod.
In a preferred embodiment of the present invention, the top of the screw is provided with a rotary force application portion.
In a preferred embodiment of the present invention, the rotating force applying portion is provided with a horizontal through hole, and the horizontal through hole is provided with a handle.
From the above, the ground clamp for welding of the utility model can clamp the workpiece or the welding tool between the bottom of the screw and the lower end of the opening side of the ㄈ -shaped main body by rotating the screw, and the fixed connection part is tightly jointed with the ground wire to switch on the current; therefore, the utility model discloses a ground wire clamp for welding can avoid among the prior art because the fatigue failure of spring makes the ground wire clamp clamping-force not tight, causes work piece and ground wire contact failure and makes clamping part workpiece surface burn or influence welding quality's the condition emergence.
Drawings
The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein,
FIG. 1A: do the utility model discloses a ground clamp for welding's structural schematic diagram one.
FIG. 1B: do the utility model discloses a ground clamp for welding's structural schematic diagram two.
FIG. 2: do the utility model discloses a welding is with ground wire clamp connection earth's structural schematic diagram.
FIG. 3: do the utility model discloses a welding is with ground clamp centre gripping work piece's schematic structure view.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in fig. 1A and 1B, a ground clamp for welding is mainly an auxiliary tool for connecting a ground wire with a workpiece or a tool during welding operation; the ground clamp comprises an ㄈ -shaped main body 1, wherein a threaded hole 111 facing vertically to a lower end part 12 is arranged at the upper end part 11 of the opening side of the ㄈ -shaped main body 1; a screw 2 is screwed in the threaded hole 111 and can rotate up and down; the ㄈ -shaped main body 1 is provided with a fixed connecting part 3 fixedly connected with a ground wire.
As shown in fig. 2 and 3, the ground clamp for welding of the present invention can fixedly clamp a workpiece 4 or a welding tool (not shown) between the bottom of the screw rod 2 and the lower end 12 of the opening side of the "ㄈ" shaped body 1 by rotating the screw rod 2, and the fixed connection portion 3 is tightly connected to the ground wire 5 to connect the current; therefore, the utility model discloses a ground wire clamp for welding can avoid among the prior art because the fatigue failure of spring makes the ground wire clamp clamping-force not tight, causes work piece and ground wire contact failure and makes clamping part workpiece surface burn or influence welding quality's the condition emergence.
In the present embodiment, as shown in fig. 1A and 1B, the fixed connection portion 3 is composed of a through hole (not shown) provided in the "ㄈ" shaped body 1, a bolt 31 inserted into the through hole, and a nut 32 screwed to the bolt 31. A connection terminal 51 is fixedly disposed at one end of the ground wire 5, and the connection terminal 51 is sleeved on the bolt 31 and screwed and fixed by the nut 32.
In the present embodiment, the upper end 11 of the opening side of the "ㄈ" shaped main body 1 is provided with a protrusion, which is a rectangular block in the present embodiment, and the threaded hole 111 is penetratingly disposed in the rectangular block.
Further, as shown in fig. 3, in order to ensure that the workpiece 4 or the tool can be stably and fixedly clamped on the welding ground clamp and maintain good contact, the lower end part 12 of the opening side of the "ㄈ" shaped main body 1 is provided with a supporting block 121 corresponding to the bottom of the screw rod 2; a top pressing block 21 is arranged at the bottom of the screw rod 2; the workpiece 4 is clamped between the top press block 21 and the support block 121.
In the present embodiment, a rotation urging portion 22 is provided at the top of the screw 2; the rotation force-applying portion 22 is provided with a horizontal through hole 221, and the handle 23 is provided in the horizontal through hole 221.
As shown in fig. 3, when the welding ground clip of the present invention is used, the nut 32 of the bolt 31 is tightened to press the connection terminal 51 of the ground wire 5, thereby fixing the ground wire 5; then, the workpiece 4 to be welded is clamped and fixed with the ground clamp for welding, the screw 2 is rotated by rotating the handle 23 to move downwards, the pressing block 21 at the bottom of the screw 2 is pressed against the workpiece 4, and the workpiece 4 is clamped between the pressing block 21 and the supporting block 121. During welding, the welding rod forms a current loop between the ground wires 5, and smooth operation of welding operation is guaranteed.
The utility model discloses a ground wire anchor clamps for welding have following advantage:
1. the ground clamp for welding of the utility model adopts the screw to rotate and press the workpiece, so that the clamping of the workpiece is stable and reliable, the ground clamp is durable, and the condition of fatigue failure of the spring in the prior art is avoided; meanwhile, the situation that the welding current stability is influenced due to the fact that the ground wire is not firmly connected and the quality of the welding seam is further influenced can be effectively prevented.
2. The utility model discloses a ground clamp for welding, the range of application is wider in production.
3. The utility model discloses a ground clamp is used in welding, convenient to use is nimble, can practice thrift operating time to improve production efficiency, fine practical value has.
4. The utility model discloses a ground clamp for welding, simple structure is unique, and the cost of manufacture is lower, can practice thrift manufacturing cost.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.

Claims (8)

1. The utility model provides a ground clamp for welding which characterized in that: the ground clamp comprises an ㄈ -shaped main body, wherein the upper end part of the opening side of the ㄈ -shaped main body is provided with a threaded hole which is vertically towards the lower end part; a screw rod is screwed in the threaded hole and can rotate up and down; the ㄈ -shaped main body is provided with a fixed connecting part for fixedly connecting the ground wire.
2. The welding ground clamp of claim 1, wherein: the fixed connecting part is composed of a through hole arranged on the ㄈ -shaped main body, a bolt arranged in the through hole in a penetrating way and a nut arranged on the bolt in a threaded way.
3. The welding ground clamp of claim 2, wherein: one end of the ground wire is fixedly provided with a connecting terminal, and the connecting terminal is sleeved on the bolt and is screwed and fixed by a nut.
4. The welding ground clamp of claim 1, wherein: a lug is arranged at the upper end part of the opening side of the ㄈ -shaped main body, and the threaded hole is arranged in the lug in a penetrating way.
5. The welding ground clamp of claim 1, wherein: the lower end part of the opening side of the ㄈ -shaped main body is provided with a supporting block corresponding to the bottom of the screw rod.
6. The welding ground clamp of claim 1, wherein: and a top pressing block is arranged at the bottom of the screw rod.
7. The welding ground clamp of claim 1, wherein: the top of the screw is provided with a rotary force application part.
8. The welding ground clamp of claim 7, wherein: the rotating force application part is provided with a horizontal perforation, and a handle is arranged in the horizontal perforation.
CNU2008202337908U 2008-12-23 2008-12-23 Earth clamp used for welding Expired - Fee Related CN201323239Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2008202337908U CN201323239Y (en) 2008-12-23 2008-12-23 Earth clamp used for welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2008202337908U CN201323239Y (en) 2008-12-23 2008-12-23 Earth clamp used for welding

Publications (1)

Publication Number Publication Date
CN201323239Y true CN201323239Y (en) 2009-10-07

Family

ID=41160614

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2008202337908U Expired - Fee Related CN201323239Y (en) 2008-12-23 2008-12-23 Earth clamp used for welding

Country Status (1)

Country Link
CN (1) CN201323239Y (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102280725A (en) * 2011-05-27 2011-12-14 江苏亨鑫科技有限公司 Anti-theft grounding clamping apparatus
CN103001021A (en) * 2012-12-11 2013-03-27 国家电网公司 Earth clamp
CN104901036A (en) * 2015-06-15 2015-09-09 上海翼锐汽车科技有限公司 Grounding device for arc-welding clamp
CN105826727A (en) * 2016-05-31 2016-08-03 苏州澳克机械有限公司 Welding machine ground wire clamp
WO2018192225A1 (en) * 2017-04-19 2018-10-25 翁良轩 Hand-pressure elastic ground wire for welding
CN110112590A (en) * 2019-06-06 2019-08-09 上海外高桥造船有限公司 Welding machine grounding wire device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102280725A (en) * 2011-05-27 2011-12-14 江苏亨鑫科技有限公司 Anti-theft grounding clamping apparatus
CN103001021A (en) * 2012-12-11 2013-03-27 国家电网公司 Earth clamp
CN104901036A (en) * 2015-06-15 2015-09-09 上海翼锐汽车科技有限公司 Grounding device for arc-welding clamp
CN105826727A (en) * 2016-05-31 2016-08-03 苏州澳克机械有限公司 Welding machine ground wire clamp
WO2018192225A1 (en) * 2017-04-19 2018-10-25 翁良轩 Hand-pressure elastic ground wire for welding
CN110112590A (en) * 2019-06-06 2019-08-09 上海外高桥造船有限公司 Welding machine grounding wire device

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20091007

Termination date: 20141223

EXPY Termination of patent right or utility model