CN202934471U - Self-locking manual pincer clamp - Google Patents
Self-locking manual pincer clamp Download PDFInfo
- Publication number
- CN202934471U CN202934471U CN 201220571887 CN201220571887U CN202934471U CN 202934471 U CN202934471 U CN 202934471U CN 201220571887 CN201220571887 CN 201220571887 CN 201220571887 U CN201220571887 U CN 201220571887U CN 202934471 U CN202934471 U CN 202934471U
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- bearing pin
- handle
- pincers tooth
- self
- pincer
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Abstract
The utility model discloses a self-locking manual pincer clamp, which overcomes the defects of the conventional pincer clamp, namely self-locking function, and provides the pincer clamp with self-locking and reinforcement functions. The pincer clamp comprises an upper handle, a lower handle, an upper pincer tooth and a lower pincer tooth, the lower side of the rear end part of the upper pincer tooth is pivoted with the upper side of the rear end part of the upper pincer tooth via a pin shaft I, the lower side of the rear end part of the lower pincer tooth is pivoted with the lower side of the front end part of the lower handle via a pin shaft II, the upper side of the rear end part of the upper pincer tooth is pivoted with the upper side of the front end part of the upper handle, the lower side of the front end part of the upper handle and the upper side of the front end part of the lower handle are clamped by two blocks of traction plates and pivoted with each other via a pin shaft IV, the rear ends of the two blocks of traction plates are clamped with the front end of a strength-borrowing handle; the pin shaft I, II and III form an isoceles triangle; the pin shaft II, III and IV also form another isosceles triangle; and the distance between the pin shafts I and II is larger than that between the pin shafts IV and II. The self-locking manual pincer clamp has functions of self-locking and reinforcement; a gripping head is changeable, a workpiece needs not to be manually held, the operation is safe and quick, the positioning is accurate and welding efficiency and quality are improved.
Description
Technical field
The utility model belongs to technical field of tools, is specifically related to a kind of hand clamp with auto-lock function.
Background technology
General clamp, all comprise handle and pincers tooth, clutch handle with hand and just can vise workpiece, but hand one loosens, workpiece will come off, this common clamp seems very inconvenient for some work, and for example the Welder generally needs another hand of hand-held welding gun to take face shield, so always wish that workpiece can be fixed automatically so that workpiece movable while operating.
The enterprise had at present with air-actuated jaw or special-purpose and complicated clamp with holding workpiece, for example so-called rectilinear clamp, horizontal clamp, plug-type clamp, door latch type clamp, multi-functional welding combination clamp series etc.But this method is limited by actual conditions usually, for example in auto manufacturing, the welding finding is frequent thing, but these findings are not too suitable these complexity of use or large-scale clamping tool.
China Patent No. ZL200420047064.9 for example, name is called the utility model patent of " clamp ", a kind of clamp is disclosed, it mainly sets up a pivoting part between the clamping section of clamp and shank part, this pivoting part mainly closes a spill pivot groove and a convex pivot agllutination with a screw tightening, and make it keep rotating state, and strengthen the structural strength of pivoting part in the pivot joint mode of spill pivot groove and convex pivot piece, prevent the clamp fault, and pivoting part is provided with clip hole and top valve part, prevent that like this shank part or clamping section from arbitrarily rocking, by said structure, make clamp can be transformed into suitable operational configurations, to adapt to different operating spaces.This clamp decomposes two sections for mutual pivot joint by shank part; force direction in the time of no doubt can improving operation is to adapt to the needs of workplace; but can not lock workpiece; if for clamping finding to be welded; especially a plurality of findings weld simultaneously, often also must ask the assistant to help or solve the workpiece orientation problem with adhesive tape and so on material fixation workpiece or by other ways.
Summary of the invention
The utility model technical issues that need to address are, overcoming the clamp of prior art can not the self-locked workpiece or clamp structure is too complicated or too huge defect, a kind of have auto-lock function and simple in structure, easy to operate clamp are provided, and this clamp just has advantage especially for the spot welding simultaneously of a plurality of findings.
The purpose of this utility model is achieved by following technical proposals: a kind of self-locking manual clamp, comprise upper handle, lower handle, upper pincers tooth and lower pincers tooth, the rearward end downside of described upper pincers tooth and the rearward end upside of lower pincers tooth are by bearing pin one pivot joint, the downside of lower pincers tooth rearward end and the downside of lower handle leading section are by bearing pin two pivot joints, the upside of upper pincers tooth rearward end and the upside of upper handle leading section are by bearing pin three pivot joints, the upside of the downside of upper handle leading section and lower handle leading section clamps with two towing plates and passes through bearing pin four pivot joints, the front end by means of the power handle is clamped in the rear end of two towing plates, and connect by the bearing pin Wushu with borrowing the power handle, described bearing pin one and bearing pin two and three one-tenth isosceles triangle relations of bearing pin, described bearing pin four and bearing pin two and three one-tenth isosceles triangle relations of bearing pin, the distance of bearing pin one and bearing pin two is greater than the distance of bearing pin four and bearing pin two.
The utility model is a kind of hand clamp that utilizes lever augmented principle to make, only need push the rear end of hand clamp upper handle during work open, make bearing pin two and bearing pin three rotate also mutually close around bearing pin four, in drive, the rear end of pincers tooth and lower pincers tooth is mutually close, make the front end of pincers tooth and lower pincers tooth separately, then by technique, need between upper and lower pincers tooth, lay out workpiece, during grip jaw, as long as on closing tightly, the rear end of lower handle, bearing pin two and bearing pin three are rotated around bearing pin four and mutually away from, in drive, the rear end of pincers tooth and lower pincers tooth is separated from each other, the front end of pincers tooth and lower pincers tooth is closed up with clamping work pieces, bearing pin four-way bearing pin one is close simultaneously, when moving to, bearing pin four makes bearing pin two, bearing pin four, bearing pin three threes' axle center is on the same straight line time, clamp is in self-locking state, and when bearing pin four approaches described straight line, the angle of itself and bearing pin two and bearing pin three approaches 180 degree angles, its thrust to bearing pin two and bearing pin three will become very large, obtain the effect of reinforcement.
In the time will taking off workpiece, can utilize by means of the power handle and move backward, utilize the bearing pin five-way to cross towing plate drive bearing pin four and retreat, bearing pin two and bearing pin three are rotated also mutually close around bearing pin four, just can make clamp separately.
As preferably, the leading section inboard of the leading section of described upper handle and lower handle is provided with arc bump.To borrow the side of power handle to push up the described arc boss that presses handle or lower handle by means of power handle deflection upper handle or lower handle, make bearing pin five acquisitions one traction component backward, and drive bearing pin four by towing plate and retreat.
As preferably, described arc bump be shaped as sinusoidal shape.
As preferably, the leading section of described upper pincers tooth and lower pincers tooth is provided with connected unit, and connected unit is provided with through hole/screw; Described upper pincers tooth and lower pincers tooth are furnished with one group of interconvertible chuck, and the rearward end of described chuck is provided with screw/through hole, and chuck is connected and fixed with bolt and upper pincers tooth or lower pincers tooth by the screw/through hole on chuck and by the through hole/screw on connected unit.
As preferably, the leading section of described chuck is provided with the shop bolt of adjustable gripping gap size.
The beneficial effects of the utility model are:
1, there is auto-lock function;
2, there is the reinforcement effect;
3, many workpiece can be clamped together;
4, chuck is replaceable; Can design according to the shape of abnormal workpieces special-shaped chuck, utilize special-shaped chuck clamping abnormal workpieces;
5,, for welding holding workpiece, without offhand, increase security;
6, active grab workpiece, without worrying workpiece movable, accurate positioning, improve welding efficiency and welding quality.
The accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
In figure, upper handle 1; Bearing pin 1; Bearing pin 2 12; Bearing pin 3 13; Bearing pin 4 14; Bearing pin 5 15; Lower handle 2; Arc bump 21; Upper pincers tooth 3; Arc-shaped structure 31; Connected unit 32; Through hole 321; Lower pincers tooth 4; Towing plate 5; Borrow power handle 6; Chuck 7; Shop bolt 71.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiments, the utility model is further described.
Embodiment 1: as shown in Figure 1, a kind of self-locking manual clamp, comprise upper handle 1, lower handle 2, upper pincers tooth 3 and lower pincers tooth 4, the rearward end downside of described upper pincers tooth 3 and the rearward end upside of lower pincers tooth 4 are by bearing pin one 11 pivot joints, the downside of the downside of lower pincers tooth 4 rearward end and lower handle 2 leading sections is by bearing pin 2 12 pivot joints, the upside of the upside of upper pincers tooth 3 rearward end and upper handle 1 leading section is by bearing pin 3 13 pivot joints, the upside of the downside of upper handle 1 leading section and lower handle 2 leading sections clamps and uses bearing pin 4 14 pivot joints by two towing plates 5, the front end by means of power handle 6 is clamped in the rear end of two towing plates 5, and pass through bearing pin 5 15 pivot joints with borrowing power handle 6, bearing pin 1 and bearing pin 2 12 and bearing pin 3 13 one-tenth isosceles triangle relations, bearing pin 4 14 and bearing pin 2 12 and bearing pin 3 13 one-tenth isosceles triangle relations, the distance of bearing pin 1 and bearing pin 2 12 is greater than the distance of bearing pin 4 14 and bearing pin 2 12.
The inboard of upper pincers tooth 3 and lower pincers tooth 4 is all pressed arc-shaped structure 31 and is arranged, and arc-shaped structure can make the space enlargement between upper and lower pincers tooth, is conducive to degree of depth holding workpiece, improves the pardon to abnormal workpieces.
Upper handle 1 and lower handle 2 are all pressed the setting of S type symmetrical structure, and S type symmetrical structure makes to shake hands comfortable, and the inner space between upper and lower handle is increased, and are conducive to avoid borrowing the action of power handle 6 to be obstructed.
Only need push the rear end of upper handle 1 and the lower handle 2 of hand clamp during work open, make bearing pin 2 12 and bearing pin 3 13 rotate also mutually close around bearing pin 4 14, in drive, the rear end of pincers tooth 3 and lower pincers tooth 4 is mutually close, make the front end of pincers tooth 3 and lower pincers tooth 4 separately, then by technique, need between upper and lower pincers tooth, lay out workpiece, during grip jaw, as long as on closing tightly, the rear end of lower handle, bearing pin 2 12 and bearing pin 3 13 are rotated around bearing pin 4 14 and mutually away from, in drive, the rear end of pincers tooth 3 and lower pincers tooth 4 is separated from each other, the front end of pincers tooth 3 and lower pincers tooth 4 is closed up with clamping work pieces, bearing pin 4 14 is close to bearing pin 1 simultaneously, when bearing pin 4 14 moves to and bearing pin 2 12, bearing pin 3 13 threes' axle center is on the same straight line time, hand clamp is in self-locking state, and when bearing pin 4 14 approaches described straight line, the angle of itself and bearing pin 2 12 and bearing pin 3 13 constantly approaches until equal 180 degree angles, now its thrust to bearing pin 2 12 and bearing pin 3 13 will become very large, obtain the effect of reinforcement.
The leading section inboard of the leading section of upper handle 1 and lower handle 2 is provided with arc bump 21.When needs take off workpiece, will be by means of power handle 6 deflection upper handle 1 or lower handles 2, borrow the side of power handle 6 to push up the arc boss 21 that presses handle 1 or lower handle 2, make bearing pin 5 15 acquisitions one traction component backward, bearing pin 5 15 drives bearing pin 4 14 by towing plate 5 and retreats, bearing pin 2 12 and bearing pin 3 13 are rotated also mutually close around bearing pin 4 14, just can make the upper and lower pincers tooth of hand clamp separately.
Arc bump 21 be shaped as sinusoidal shape.The smooth structure that the top of this shape is the approximate circle arc, and borrow the power handle power that press on top to change steadily, the arc bump root is wider and joint portion upper and lower handle is also more firm.
The leading section of upper pincers tooth 3 and lower pincers tooth 4 is provided with connected unit 32, and the upper and lower end face of connected unit 32 is all plane, and connected unit 32 is provided with through hole 321; Upper pincers tooth 3 and lower pincers tooth 4 are furnished with one group of interconvertible chuck 7, and the rearward end of each chuck 7 all is provided with screw, and the through hole 321 that chuck 7 utilizes this screw and upper pincers tooth 3 or lower pincers tooth 4 to be provided with is joined with bolts.Chuck 7 can be connected to the upper surface of described connector 32, also can be connected to the lower surface of connector 32.According to concrete workpiece shape, upper pincers tooth 3 and lower pincers tooth 4 be connecting clip no longer also, but directly uses described connected unit 32 holding workpieces.
The leading section of chuck 7 is provided with the shop bolt 71 of adjustable gripping gap size.Thickness according to holding workpiece, the screw thread of turn shop bolt 71, until hand clamp while clamping bearing pin 4 14 just and bearing pin 2 12 and bearing pin 3 13 on the same straight line, generally speaking, the part of same batch, for example part semi-finished product to be welded are because be of similar shape structure and size, so only need to adjust shop bolt 71, once just part is general by the gross.
The utlity model has auto-lock function; There is the reinforcement effect; Can clamp by many workpiece simultaneously; Chuck is replaceable, for welding holding workpiece, without offhand, increases security; But the active grab workpiece, without worrying workpiece movable, accurate positioning, improve welding efficiency and welding quality; Can clamp abnormal workpieces.If those skilled in the art does simple the modification or replacement to the foregoing invention content, such change can not think to break away from scope of the present utility model, all will be included in the scope of claim of the present utility model to the apparent modification of those skilled in the art like this within.
Claims (5)
1. a self-locking manual clamp, comprise upper handle, lower handle, upper pincers tooth and lower pincers tooth, it is characterized in that, the rearward end downside of described upper pincers tooth and the rearward end upside of lower pincers tooth are by bearing pin one pivot joint, the downside of lower pincers tooth rearward end and the downside of lower handle leading section are by bearing pin two pivot joints, the upside of upper pincers tooth rearward end and the upside of upper handle leading section are by bearing pin three pivot joints, the upside of the downside of upper handle leading section and lower handle leading section clamps with two towing plates and passes through bearing pin four pivot joints, the front end by means of the power handle is clamped in the rear end of two towing plates, and connect by the bearing pin Wushu with borrowing the power handle, described bearing pin one and bearing pin two and three one-tenth isosceles triangle relations of bearing pin, described bearing pin four and bearing pin two and three one-tenth isosceles triangle relations of bearing pin, the distance of bearing pin one and bearing pin two is greater than the distance of bearing pin four and bearing pin two.
2. self-locking manual clamp according to claim 1, is characterized in that, the leading section inboard of the leading section of described upper handle and lower handle is provided with arc bump.
3. self-locking manual clamp according to claim 2, is characterized in that, the edge shape of described arc bump is sinusoidal shape.
4. self-locking manual clamp according to claim 1 and 2, is characterized in that, the leading section of upper pincers tooth and lower pincers tooth is provided with connected unit, and connected unit is provided with through hole/screw; Described upper pincers tooth and lower pincers tooth are furnished with one group of interconvertible chuck, and the rearward end of described chuck is provided with screw/through hole, and chuck is connected and fixed with bolt and upper pincers tooth or lower pincers tooth by the screw/through hole on chuck and by the through hole/screw on connected unit.
5. self-locking manual clamp according to claim 4, is characterized in that, the leading section of described chuck is provided with the shop bolt of adjustable gripping gap size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220571887 CN202934471U (en) | 2012-11-02 | 2012-11-02 | Self-locking manual pincer clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220571887 CN202934471U (en) | 2012-11-02 | 2012-11-02 | Self-locking manual pincer clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202934471U true CN202934471U (en) | 2013-05-15 |
Family
ID=48318730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220571887 Expired - Fee Related CN202934471U (en) | 2012-11-02 | 2012-11-02 | Self-locking manual pincer clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202934471U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400684A (en) * | 2014-11-18 | 2015-03-11 | 惠州市快印家族图文设计有限公司 | Bookbinding clamp |
| CN104439834A (en) * | 2014-11-19 | 2015-03-25 | 芜湖普威技研有限公司 | Automobile cable accelerator head welding clamp |
| CN106271811A (en) * | 2016-08-29 | 2017-01-04 | 芜湖银星汽车零部件有限公司 | A kind of extraction clamp |
| CN109620363A (en) * | 2019-01-02 | 2019-04-16 | 重庆金山医疗机器人有限公司 | Surgical instrument mechanism |
-
2012
- 2012-11-02 CN CN 201220571887 patent/CN202934471U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104400684A (en) * | 2014-11-18 | 2015-03-11 | 惠州市快印家族图文设计有限公司 | Bookbinding clamp |
| CN104439834A (en) * | 2014-11-19 | 2015-03-25 | 芜湖普威技研有限公司 | Automobile cable accelerator head welding clamp |
| CN106271811A (en) * | 2016-08-29 | 2017-01-04 | 芜湖银星汽车零部件有限公司 | A kind of extraction clamp |
| CN109620363A (en) * | 2019-01-02 | 2019-04-16 | 重庆金山医疗机器人有限公司 | Surgical instrument mechanism |
| CN109620363B (en) * | 2019-01-02 | 2024-04-05 | 重庆金山医疗机器人有限公司 | Surgical instrument mechanism |
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Legal Events
| 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: 20130515 Termination date: 20171102 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |