CN111015045B - Positioning and clamping tool for manual groove grabbing point - Google Patents

Positioning and clamping tool for manual groove grabbing point Download PDF

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Publication number
CN111015045B
CN111015045B CN201811172550.6A CN201811172550A CN111015045B CN 111015045 B CN111015045 B CN 111015045B CN 201811172550 A CN201811172550 A CN 201811172550A CN 111015045 B CN111015045 B CN 111015045B
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China
Prior art keywords
positioning
blocks
opening
groove
groove body
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CN201811172550.6A
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CN111015045A (en
Inventor
陈时先
王镜淇
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Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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Publication of CN111015045A publication Critical patent/CN111015045A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K37/00Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
    • B23K37/04Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
    • B23K37/0426Fixtures for other work
    • B23K37/0435Clamps
    • B23K37/0443Jigs

Abstract

The invention relates to a positioning and clamping tool for a manual groove grabbing point, which is characterized in that: the groove body positioning device comprises a frame body, wherein an opening for inserting the groove body is formed in the table board of the frame body, the peripheral table board of the opening is used for placing the flange face of the groove body, positioning blocks capable of sliding are arranged on the table board corresponding to four corner positions of the opening, the inner end face of each positioning block is an inwards concave arc-shaped pressing face matched with the outer surface shape of the corner of the groove body, the positioning blocks are driven by a first air cylinder to slide, pressing blocks are respectively arranged at the four corners of the table board, notches for exposing the spot welding position of the groove body are formed in the pressing blocks, and the pressing blocks are driven by a second air cylinder to press the flange face on the table board or leave the flange face. Has the advantages of reasonable structural design and convenient workpiece taking and placing.

Description

Positioning and clamping tool for manual groove grabbing point
Technical Field
The invention relates to a water tank welding tool for welding a stainless steel water tank, in particular to a positioning and clamping tool for a manual tank grabbing point.
Background
In modern industry, frock clamp appears in each link of product manufacturing in a large number, along with the improvement of industry level, and is more and more high to the precision and the degree of automation of frock clamp, and traditional frock clamp has hardly satisfied the production demand of modernization. When the precision welding, the requirement on the gap between the welded parts is very high, if the gap exceeds the required value, two workpieces cannot be welded firmly, and the welding reject ratio is high and the production efficiency is low when the traditional clamp is used for clamping.
Taking a stainless steel water tank for a dish washing machine as an example, various parts are required to be installed in the stainless steel water tank, the matching relation is multiple, the requirement on precision is very high, after the water tank is bent and formed, the opening range of the notch position towards the periphery is large due to strong rigidity of stainless steel materials, so that the notch shape is firstly positioned, and then the periphery is welded in the depth direction.
The notch shape positioning needs two steps, the first is a grabbing point process, namely, the splicing positions of two adjacent flanges in the periphery of the notch of the water tank are prepositioned by adopting spot welding. The second is a welding procedure, namely, the splicing positions of two adjacent flanges in the periphery of the notch of the water tank after the grabbing point are welded by argon arc welding, and the plane and the circular arc welding are required to be carried out at each splicing position.
The existing grabbing point positioning and clamping tool has the following defects:
1. the existing manual groove grabbing points are generally positioned by adopting the size of a groove body plane flange, and are mostly fixedly positioned. When the size of the flange on the plane of the groove body is adopted for positioning, the positioning error of the size of the notch with a wider plane is larger; the groove bodies with the same sizes and different sizes of flanges similar to the left groove body and the right groove body cannot be shared.
2. In order to facilitate taking and placing, the gap between the opening size of the common tool and the size of the notch is larger. The splicing gap is large due to the fact that the size of the opening of the tool and the gap of the notch are large, the size of the notch after the grabbing point cannot be guaranteed, and the groove body cannot be placed into the groove body conveniently if the size gap is small.
3. Substantially without clamping means. The absence of clamping means is susceptible to thermal deformation during the gripping process.
In conclusion, the existing grabbing point positioning and clamping tool needs to be further improved.
Disclosure of Invention
The invention aims to solve the technical problem of providing a positioning and clamping tool for a manual groove grabbing point, which is reasonable in structural design and convenient for workpiece taking and placing, aiming at the current situation of the prior art, and the positioning and clamping tool is suitable for two groove bodies with consistent groove opening sizes and different flange sizes.
The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a tight frock of location clamp that manual groove grabs point and uses which characterized in that: the groove body positioning device comprises a frame body, wherein an opening for inserting the groove body is formed in the table board of the frame body, the peripheral table board of the opening is used for placing the flange face of the groove body, positioning blocks capable of sliding are arranged on the table board corresponding to four corner positions of the opening, the inner end face of each positioning block is an inwards concave arc-shaped pressing face matched with the outer surface shape of the corner of the groove body, the positioning blocks are driven by a first air cylinder to slide, pressing blocks are respectively arranged at the four corners of the table board, notches for exposing the spot welding position of the groove body are formed in the pressing blocks, and the pressing blocks are driven by a second air cylinder to press the flange face on the table board or leave the flange face.
Because of having certain heat among the spot welding process, easily lead to the cell body thermal deformation and want interior hunch-up, for the emergence of avoiding this condition, further improve, still include two interior bracers along notch diagonal setting, the lateral surface of interior bracer is the evagination arc clamping face that matches with the internal surface shape of notch corner, links together through bearing structure between the two interior bracers, and this bearing structure makes interior bracer can compress tightly the internal surface of notch corner. The internal stay of interior bracer combines the external pressure of locating piece, firmly fixes a position the cell body corner, and reducible thermal deformation influence at the grabhook in-process guarantees the stability of notch size. The arrangement of the inner supporting block enables the tool to integrate the R angle positioning, shaping and pressing functions.
Preferably, the supporting structure comprises supporting rods fixed at the rear ends of the inner supporting blocks, an adjusting screw rod is arranged between the two supporting rods, the left end and the right end of the adjusting screw rod are respectively in threaded connection with the corresponding side supporting rods, and the inner supporting blocks can be synchronously driven to move in the opposite direction or the reverse direction along with the supporting rods by rotating the adjusting screw rod. The position of interior vaulting piece is conveniently adjusted to this bearing structure, and interior vaulting piece compresses tightly or breaks away from the internal surface of notch corner more easily.
The improved structure is characterized in that a guide rod is further arranged between the two support rods, guide holes for inserting the guide rods are formed in the rear end faces of the two support rods, and the guide rods can slide relative to the guide holes. The setting of guide bar is convenient to adjust the position of interior kicking block and is operated, and during the operation, the guide bar is held to one hand, and adjustment lead screw, convenient operation can be rotated to the other hand.
Further improved, the upper parts of the two side edges of the inner supporting block are provided with placing blocks used for placing on the flange surface. The placing block is placed on the flange surface, so that the supporting block cannot fall off in the adjusting process, and the adjusting operation is facilitated.
In order to conveniently take out the groove body with the completed grabbing point, the middle parts of the side walls of the table board, which are positioned at the left side and the right side of the opening, are provided with concave parts. When the workpiece is taken, the hand passes through the concave part to hook the flange surface, so that the groove body can be lifted.
The improved structure is characterized in that a plurality of guide blocks extending upwards are fixed on the top surfaces of the front side and the rear side of the opening on the table board, the top surfaces of the guide blocks are inclined planes, and the guide blocks are used for extruding and guiding the flange surface of the groove body. The guide block plays a role in assisting in extruding the flange surface, and the groove body is favorably placed into the opening.
In order to guide the moving direction of the positioning block conveniently, grooves are formed in the table top corresponding to four corner positions of the opening, the positioning block is arranged in the grooves and can slide, and a sliding rail structure is arranged between the positioning block and the side wall of each groove.
Preferably, the rear end of the pressing block is hinged to a connecting seat fixed on the table top, and the second cylinder is used for driving the pressing block to swing. After the briquetting swings, when upwards taking out the cell body, the flange face can not take place to interfere with the briquetting, if the briquetting reciprocates, still need set up unsettled mounting bracket above the mesa.
Compared with the prior art, the invention has the advantages that: the groove body arranged in the opening is positioned by four slidable positioning blocks, and the inner end surface of each positioning block is an inwards concave arc-shaped pressing surface matched with the outer surface shape of the corner of the groove body, so that the groove opening size can be accurately and effectively controlled, and no gap is reserved between the groove body and the outer side of the R corner of the groove opening; the positioning block can slide, so that the tool can well adapt to two groove bodies with consistent groove opening sizes and different flange sizes; the size of the opening can be made larger, and when the positioning block is in a retraction state, the clearance between the peripheral outer wall of the groove body and the inner wall of the opening is larger, so that the workpiece can be conveniently taken and placed; the notch on the pressing block also has a guiding function on welding.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is an exploded perspective view of FIG. 1;
FIG. 3 is a schematic perspective view of an embodiment of the present invention in use;
FIG. 4 is a bottom view of an embodiment of the present invention in use;
FIG. 5 is an exploded perspective view of an inner support structure in accordance with an embodiment of the present invention;
fig. 6 is a schematic view of a groove structure after the point is grabbed in the embodiment of the invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying examples.
As shown in fig. 1 to 6, a preferred embodiment of the present invention is shown.
The utility model provides a tight frock of location clamp that manual groove was grabbed point and was used, including support body 1, support body 1 has mesa 11 and locates the supporting legs of mesa 11 bottom, it has the opening 3 that supplies cell body 2 to insert it to open on the mesa 11 of support body 1, the flange face 21 that the periphery mesa of opening 3 supplied cell body 2 is shelved, four corner positions that correspond opening 3 on mesa 11 are equipped with locating piece 5 that can slide, four corner positions that correspond opening 3 on mesa 11 are equipped with recess 32, locating piece 5 is arranged in this recess 32 and can slide, be equipped with the slide rail structure between locating piece 5 and the recess 32 lateral wall. The inner end surface of the positioning block 5 is a concave arc-shaped pressing surface 51 matched with the shape of the outer surface of the corner of the groove body 2, and the positioning block 5 is driven by the first cylinder 4a to slide left and right.
Four corners of the table board 11 are respectively provided with a pressing block 6, the pressing block 6 is provided with a notch 61 for exposing the spot welding position 22 of the groove body 2, and the pressing block 6 is driven by the second air cylinder 4b to press the flange surface 21 on the table board 11 or leave the flange surface 21. The rear end of the pressing block 6 is hinged to a connecting seat fixed on the table top 11, and the second air cylinder 4b is used for driving the pressing block 6 to swing.
The inner supporting blocks 7 are arranged along the opposite angles of the groove opening, the outer side surfaces of the inner supporting blocks 7 are convex arc-shaped pressing surfaces 71 matched with the shapes of the inner surfaces of the groove opening corners, the two inner supporting blocks 7 are connected together through a supporting structure, and the supporting structure enables the inner supporting blocks 7 to press the inner surfaces of the groove opening corners. The upper parts of the two side edges of the inner supporting block 7 are provided with placing blocks 72 for placing on the flange surface 21. The supporting structure comprises supporting rods 8 fixed at the rear ends of the inner supporting blocks 7, an adjusting screw rod 9 is arranged between the two supporting rods 8, the left end and the right end of the adjusting screw rod 9 are respectively in threaded connection with the corresponding side supporting rods 8, the inner supporting blocks 7 can be synchronously driven to move in opposite directions or in opposite directions along with the supporting rods 8 by rotating the adjusting screw rod 9, the middle of the adjusting screw rod 9 is a polygonal polished rod part 91, the adjusting screw rod can be conveniently rotated by a wrench, and the inner surface of the groove opening corner can be more tightly pressed by the inner supporting blocks 7. A guide rod 10 is further arranged between the two support rods 8, the guide rod 10 and the adjusting screw rod are arranged in an up-and-down parallel spaced mode, guide holes 81 for the guide rod 10 to be inserted are formed in the rear end faces of the two support rods 8, and the guide rod 10 can slide relative to the guide holes 81.
The middle of the side wall of the table 11 on the left and right sides of the opening 3 is provided with a concave portion 31.
A plurality of guide blocks 12 extending upwards are fixed on the top surface of the table top 11 at the front and rear sides of the opening 3, the top surface of each guide block 12 is an inclined surface, and the guide blocks 12 are used for extruding and guiding the flange surfaces 21 of the tank body 2.
The working principle and the process of the embodiment of the invention are as follows:
the tank body 2 is arranged in the opening 3, the tank body 2 is pressed down until the flange face 21 is basically placed on the table board 11, each first air cylinder 4a correspondingly drives each positioning block 5 to slide towards the direction of the outer surface pressing the corner of the tank body, each second air cylinder 4b correspondingly drives each pressing block 6 to swing, and the pressing blocks 6 press the flange face 21 on the table board 11. Then the inner supporting block 7 is placed in, the adjusting screw rod 9 is rotated, the supporting rod 8 drives the inner supporting block 7 to move outwards to press the inner surface of the corner of the notch, the inner support of the inner supporting block 7 is combined with the external pressure of the positioning block 5 to firmly position the corner of the groove body, the thermal deformation influence in the grabbing point process can be reduced, and the stability of the size of the notch is ensured. And then the spot welding machine carries out spot welding and grabbing on two flange surfaces 21 at the diagonal positions of the groove body. Then the supporting block 7 is loosened, the supporting block 7 is placed at the other two diagonal positions of the notch, spot welding on the other two corner flange surfaces 21 is completed, and the point grabbing process is completed.
A pickup process: the first air cylinder 4a correspondingly drives each positioning block 5 to slide towards the direction of the outer surface far away from the corner of the groove body, and the second air cylinder 4b drives each pressing block 6 to swing towards the direction far away from the flange face 21. The size of the opening 3 can be larger than that of the notch of the groove body 2 after the grabbing point is completed, when the positioning block 5 is in a retraction state, the gaps between the peripheral outer walls of the groove body 2 and the inner wall of the opening 3 are large, so that a workpiece can be conveniently taken and placed, and the appearance of the groove body 2 after the grabbing point is shown in fig. 6.
It should be noted that in the description of the present embodiment, the terms "front, back", "left, right", "up, down", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Claims (6)

1. The utility model provides a tight frock of location clamp that manual groove grabs point and uses which characterized in that: comprises a frame body (1), an opening (3) for inserting the groove body (2) is arranged on a table-board (11) of the frame body (1), the peripheral table-board of the opening (3) is used for placing a flange surface (21) of the groove body (2), the table board (11) is provided with positioning blocks (5) which can slide corresponding to four corner positions of the opening (3), the inner end surface of each positioning block (5) is an inward concave arc-shaped pressing surface (51) matched with the outer surface shape of the corner of the groove body (2), the positioning block (5) is driven by the first cylinder (4a) to slide, four corners of the table board (11) are respectively provided with a pressing block (6), the pressing blocks (6) are provided with notches (61) for exposing spot welding positions (22) of the groove body (2), the pressing block (6) is driven by the second cylinder (4b) to press the flange surface (21) on the table top (11) or leave the flange surface (21);
the outer side surfaces of the inner supporting blocks (7) are convex arc-shaped pressing surfaces (71) matched with the shapes of the inner surfaces of the corner of the notch, the two inner supporting blocks (7) are connected together through a supporting structure, and the supporting structure enables the inner supporting blocks (7) to press the inner surfaces of the corner of the notch;
the supporting structure comprises supporting rods (8) fixed at the rear ends of the inner supporting blocks (7), an adjusting screw rod (9) is arranged between the two supporting rods (8), the left end and the right end of the adjusting screw rod (9) are respectively in threaded connection with the corresponding side supporting rods (8), and the inner supporting blocks (7) can be synchronously driven to move in the opposite direction or the reverse direction along with the supporting rods (8) by rotating the adjusting screw rod (9);
two still be equipped with guide bar (10) between bracing piece (8), open on the rear end face of two bracing pieces (8) and supply guide bar (10) male bullport (81), guide bar (10) can slide relatively bullport (81).
2. The positioning and clamping tool for the manual groove grabbing point according to claim 1, is characterized in that: the upper parts of two side edges of the inner supporting block (7) are provided with placing blocks (72) used for placing on the flange surface (21).
3. The positioning and clamping tool for the manual groove grabbing point according to claim 1, is characterized in that: and the middle parts of the side walls of the table board (11) positioned at the left side and the right side of the opening (3) are provided with concave parts (31).
4. The positioning and clamping tool for the manual groove grabbing point according to claim 1, is characterized in that: the top surface that lies in both sides around opening (3) on mesa (11) is fixed with a plurality of guide blocks (12) that upwards extend, and the top surface of guide block (12) is the inclined plane, and guide block (12) are used for extrudeing the direction to flange face (21) of cell body (2).
5. The positioning and clamping tool for the manual groove grabbing point according to claim 1, is characterized in that: four corner positions on the table top (11) corresponding to the openings (3) are provided with grooves (32), the positioning blocks (5) are arranged in the grooves (32) and can slide, and a sliding rail structure is arranged between the positioning blocks (5) and the side walls of the grooves (32).
6. The positioning and clamping tool for the manual groove grabbing point according to claim 1, is characterized in that: the rear end of the pressing block (6) is hinged to a connecting seat fixed on the table board (11), and the second cylinder (4b) is used for driving the pressing block (6) to swing.
CN201811172550.6A 2018-10-09 2018-10-09 Positioning and clamping tool for manual groove grabbing point Active CN111015045B (en)

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Application Number Priority Date Filing Date Title
CN201811172550.6A CN111015045B (en) 2018-10-09 2018-10-09 Positioning and clamping tool for manual groove grabbing point

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Application Number Priority Date Filing Date Title
CN201811172550.6A CN111015045B (en) 2018-10-09 2018-10-09 Positioning and clamping tool for manual groove grabbing point

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CN111015045A CN111015045A (en) 2020-04-17
CN111015045B true CN111015045B (en) 2022-02-08

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112756885A (en) * 2021-01-14 2021-05-07 诺力智能装备股份有限公司 Frame welding position device that can overturn and shift
CN113751914B (en) * 2021-09-30 2022-03-18 汕头职业技术学院 Automatic production line and production method for metal welding processing

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0686016B2 (en) * 1991-03-18 1994-11-02 株式会社ナビック中部 Water tank surface plate of plasma cutting device
CN202684341U (en) * 2012-07-19 2013-01-23 苏州迅镭激光科技有限公司 Automatic welding location device for water groove
CN103381517B (en) * 2013-05-09 2015-06-24 杭州新九龙厨具制造有限公司 Automatic water tank welding machine and welding method thereof
CN203448928U (en) * 2013-09-25 2014-02-26 宁波市拓新焊接技术有限公司 Water channel welding device
CN105215606B (en) * 2015-10-31 2017-06-27 广东万和电气有限公司 For inner bag and the apparatus for welding and positioning of base
CN106041401A (en) * 2016-07-26 2016-10-26 宁波方太厨具有限公司 Clamp for welding oil cup
CN206536167U (en) * 2017-03-20 2017-10-03 鹤山市欧菲特厨卫实业有限公司 A kind of fixture for tank welding processing
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Denomination of invention: A positioning and clamping fixture for manual groove gripping points

Effective date of registration: 20231102

Granted publication date: 20220208

Pledgee: Bank of China Limited Ningbo Hangzhou Bay New Area sub branch

Pledgor: NINGBO FOTILE KITCHEN WARE Co.,Ltd.

Registration number: Y2023980063518