Positioning device for welding

Abstract

A positioning device for welding comprises a welding table, two supporting plates are fixed to the bottom of the welding table, a horizontal strip-shaped hole penetrating through the upper face and the lower face of the welding table is formed in the welding table, two sliding strips capable of sliding along the strip-shaped hole are arranged in the strip-shaped hole in a penetrating mode, clamping positioning plates are fixed to the tops of the two sliding strips, and the two clamping positioning plates are opposite. Adjusting units used for adjusting the clamping size range are arranged on the opposite inner sides of the two clamping positioning plates, a power unit connected with the two sliding strips is arranged at the bottom of the welding table, and the power unit is used for driving the two sliding strips to slide away from or close to each other at the same time. The device is mainly used for positioning and clamping before welding.

Description

TECHNICAL FIELD

[0001] The utility model relates to automobile parts processing welding positioning technical field, concretely relates to a positioning device for welding. BACKGROUND

[0002] In the automobile structure, some smaller parts are in the form of sheet structure with certain thickness, and sometimes according to the processing needs, the operator needs to weld another sheet structure on these sheet structure parts to meet the design installation and acceptance requirements. Some operators first temporarily fix two sheet parts by spot welding, and then place the temporarily fixed parts on the welding table for welding by the electric welding machine.

[0003] However, the temporarily spot-welded parts need to be clamped and positioned before welding. Some existing positioning structures for clamping parts have a complex operation process when clamping and positioning, which increases the manufacturing cost and the long-term operating cost. For example, the patent document with the publication number "CN205733386U" and the name "a protection device for welding of power battery shell cover" discloses a protection device for welding. The device has welding function while providing protection. The structure includes a processing platform, two opposite clamping cylinders arranged on the processing platform, and clamping blocks arranged at the extension ends of each clamping cylinder. When clamping the parts to be welded, the operator simultaneously starts the two clamping cylinders to make the two clamping cylinders drive the two clamping blocks to slide away from each other. Then the parts are placed on the processing platform. When clamping and positioning is needed, the two clamping cylinders are started again to drive the two clamping blocks to approach and clamp the parts synchronously.

[0004] The above patent document requires two clamping cylinders in the manufacturing process. To achieve high synchronization of the two clamping cylinders, the manufacturing requirements are high. In addition, the installation of two clamping cylinders increases the manufacturing cost. In the use process, the two clamping cylinders need to work synchronously, which also increases the operating cost in the long run. UTILITY MODEL CONTENTS

[0005] The utility model aims at the deficiencies of the prior art and proposes a positioning device for welding to solve the technical problem of high manufacturing cost and operating cost of some welding clamping devices mentioned in the background.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a positioning device for welding, including the welding table, the bottom of welding table is fixed with two support plates, the welding table is opened with horizontal and the both sides of it are through the strip -shaped hole, two slide bars are arranged in the strip -shaped hole and can slide along the strip -shaped hole, the top of two slide bars is fixed with clamping positioning plate, two clamping positioning plates are opposite, the opposite inner side of two clamping positioning plates is equipped with the adjusting unit for adjusting the clamping size range, and the bottom of welding table is equipped with the power unit connected with two slide bars, and the power unit is used for driving two slide bars to slide away or close simultaneously.

[0008] Working principle:

[0009] The operator first places the to-be-welded component that has been temporarily positioned by spot welding on the welding table.

[0010] Then, according to the size of the thickness of the bottom of the to-be-welded component, the operator adjusts the clamping size of the clamping positioning plate for clamping and positioning the to-be-welded component through the adjusting unit.

[0011] Then, the operator starts the power unit, which can drive the two slide bars to slide close simultaneously, the slide bars drive the clamping positioning plates to move close or away, thereby clamping the bottom of the component, and then the welding machine can weld the to-be-welded part of the component.

[0012] After welding, the operator can simultaneously drive the two slide bars to slide away through the power unit, thereby releasing the clamping of the component, and the operator can take the component off the welding table.

[0013] The above operation is repeated to realize welding of the components one by one.

[0014] The utility model has the advantages that:

[0015] During use, the operator can place the to-be-welded component on the welding table, adjust the clamping size of the clamping positioning plate for clamping and positioning the to-be-welded component through the adjusting unit, thereby clamping and positioning the structure within a certain thickness size range of the to-be-welded component, and the two clamping positioning plates can move close or away, thereby clamping components of different sizes within a certain range, improving the application range.

[0016] In addition, the structure only needs to use one power unit to drive the two clamping positioning plates to slide close or away, which is lower in manufacturing and operating costs than the clamping structure mentioned in the background art, and is more convenient and practical.

[0017] Further, the power unit comprises a cylinder fixedly connected with the support plate, an isosceles triangular push block, two sliding blocks each having an inclined surface matched with the isosceles wedge surface of the push block, and two reset elastic members, the telescopic end of the cylinder is vertically upward, the push block is fixedly connected with the telescopic end of the cylinder, and the two symmetrical isosceles push surfaces of the push block are upward and away from the cylinder, the two sliding blocks are fixedly connected with the two sliding bars respectively and correspondingly, and the two isosceles push surfaces of the push block are slidably abutted with the two inclined surfaces of the two sliding blocks, and the two reset elastic members are horizontally arranged on the welding table and connected with the two sliding blocks respectively.

[0018] Further, the push block is of a hollow structure, and a plurality of support rods for supporting the inner wall of the push block are fixed in the cavity of the push block.

[0019] Further, a push rod is fixed to the top of the push block, the push rod is slidably arranged between the two sliding blocks and arranged in the strip-shaped hole.

[0020] Further, the sliding block is of a hollow structure, a slag dropping hole is formed in the top of the sliding block corresponding to the strip-shaped hole, and a slag falling hole is formed in the bottom of the sliding block.

[0021] Further, the reset elastic member is of a spring material structure.

[0022] Further, the adjusting unit comprises a sliding groove vertically arranged along the inner side of the clamping positioning plate, a sliding adjusting block slidably arranged in the sliding groove, and a vertical screw rod, the screw rod penetrates through the top of the clamping positioning plate and extends into the sliding groove, and the screw rod is threadedly connected with the clamping positioning plate, the top of the sliding adjusting block is provided with a cylindrical circular groove, and the bottom of the screw rod is fixedly provided with a rotating column penetrating into the circular groove, and the rotating column can rotate relative to the circular groove.

[0023] Further, the opposite inner sides of the two support plates are fixedly provided with mounting plates, and the bottom of the cylinder is fixedly connected with the two mounting plates. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a front view of the utility model embodiment;

[0025] Figure 2 It is Figure 1 It is an enlarged structural schematic view of position A in the middle;

[0026] Figure 3 It is Figure 1 It is an enlarged structural schematic view of position B in the middle.

[0027] Explanation of reference numerals in the attached drawings: 1. Welding table; 2. Support plate; 3. Strip hole; 4. Sliding bar; 5. Clamping and positioning plate; 6. Cylinder; 7. Push block; 8. Reset elastic element; 9. Support rod; 10. Push rod; 11. Slag hole; 12. Sliding groove; 13. Sliding adjustment block; 14. Screw rod; 15. Circular groove; 16. Rotating column; 17. Mounting plate; 18. Sliding block; 19. Detailed Implementation

[0028] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0029] like Figure 1 As shown, a welding positioning device includes a welding table 1. Two support plates 2 are fixed to the bottom of the welding table 1. A horizontal, through-hole 3 is formed on the welding table 1, penetrating both its top and bottom surfaces. Two sliding strips 4, each capable of sliding along the through-hole 3, are inserted into the through-hole 3. A clamping positioning plate 5 is fixed to the top of each sliding strip 4. The two clamping positioning plates 5 face each other, and each has an adjustment unit on its inner side for adjusting the clamping size range. A power unit connected to both sliding strips 4 is located at the bottom of the welding table 1. This power unit simultaneously drives the two sliding strips 4 to slide closer or further away. This structure requires only one power unit to simultaneously drive the two clamping positioning plates 5 to slide closer or further away, resulting in lower manufacturing and operating costs compared to the clamping structures mentioned in the background art, making it more convenient and practical.

[0030] like Figure 1 As shown, the power unit includes a cylinder 6 fixedly connected to a support plate 2, an isosceles triangular push block 7, two sliding blocks 19 each having an inclined surface adapted to the isosceles wedge-shaped surface of the push block 7, and two reset elastic elements 8. Mounting plates 18 are fixedly attached to the inner sides of the two support plates 2. The bottom of the cylinder 6 is fixedly connected to both mounting plates 18, thus achieving the installation of the cylinder 6 in this simple manner. The telescopic end of the cylinder 6 faces vertically upwards. The push block 7 is fixedly connected to the telescopic end of the cylinder 6, and the two symmetrical isosceles pushing surfaces of the push block 7 face upwards and away from the cylinder 6. The two sliding blocks 19 are fixedly connected to the two sliding bars 4 one-to-one, and the two isosceles pushing surfaces of the push block 7 slide against the two inclined surfaces of the two sliding blocks 19. The reset elastic elements 8 are made of spring material, and both reset elastic elements 8 are horizontally mounted on the welding table 1, and each reset elastic element 8 is connected to one of the two sliding blocks 19.

[0031] The operator starts the cylinder 6, and the telescopic end of the cylinder 6 drives the pushing block 7 to move upwards, and then the pushing block 7 simultaneously pushes the two sliding blocks 19, and the two sliding blocks 19 respectively drive the two sliding bars 4 to relatively slide away, and then the sliding bar 4 drives the two clamping positioning plates 5 to slide away, thereby leaving a space for placing the components to be welded, and then the operator places the components on the welding table 1, and then the operator starts the cylinder 6 again, and the telescopic end of the cylinder 6 retracts, thereby driving the pushing block 7 to move downwards, and then the two reset elastic members 8 respectively push the sliding blocks 19, thereby making the sliding block 19 drive the sliding bar 4 and the clamping positioning plate 5 to slide close, and then the two clamping positioning plates 5 clamp the two sides of the bottom of the component, and the setting structure only uses one cylinder 6, which is more automatic, and compared with the background art, the number of cylinders 6 is saved, that is, the manufacturing and operating costs are reduced.

[0032] As shown in Figure 1 and Figure 3 , the pushing block 7 is a hollow structure, and a plurality of support rods 9 for supporting the inner wall of the pushing block 7 are fixed in the cavity of the pushing block 7. The hollow structure of the pushing block 7 is more portable, reduces the manufacturing cost and the pushing force required for the cylinder 6 to push the pushing block 7, and also reduces the operating cost. The setting of the support rod 9 is to further strengthen the stability of the shape of the pushing block 7 and prevent it from deforming.

[0033] As shown in Figure 1 and Figure 3 , the top of the pushing block 7 is fixed with a pushing rod 10 which can slide through the two sliding blocks 19 and is arranged in the bar-shaped hole 3. When the welding is completed, the operator starts the cylinder 6, and the telescopic end of the cylinder 6 drives the pushing block 7 to move upwards, and then the pushing block 7 simultaneously pushes the two sliding blocks 19, and the two sliding blocks 19 respectively drive the two sliding bars 4 to relatively slide away, and then the sliding bar 4 drives the two clamping positioning plates 5 to slide away, and at this time the telescopic end of the cylinder 6 also drives the pushing rod 10 to move upwards through the bar-shaped hole 3, thereby being able to lift the component placed on the welding table 1 from the bottom, thereby providing better space conditions for the operator to take the component.

[0034] As shown in Figure 1 , the sliding block 19 is a hollow structure, the top of the sliding block 19 is in sliding abutment with the bottom of the welding table 1, the top of the sliding block 19 corresponding to the bar-shaped hole 3 is provided with a slag hole 11, and the bottom of the sliding block 19 is provided with a slag falling hole 12. After welding, some welding slag scattered on the welding table 1 will fall into the bar-shaped hole 3, at this time, the welding slag will fall into the slag hole 11 and then fall through the slag falling hole 12, thereby facilitating the collection of the welding slag falling into the bar-shaped hole 3, and the welding slag falling on the welding table 1 can be directly cleaned by the operator.

[0035] As Figure 1 and Figure 2 shown, the adjusting unit comprises a sliding groove 13 vertically opened along the inner side of the clamping positioning plate 5, a sliding adjusting block 14 slidingly arranged in the sliding groove 13, and a vertical screw rod 15 penetrating through the top of the clamping positioning plate 5 and extending into the sliding groove 13, and the screw rod 15 is threadedly connected with the clamping positioning plate 5, the top of the sliding adjusting block 14 is provided with a cylindrical circular groove 16, and the bottom of the screw rod 15 is fixedly provided with a rotating column 17 penetrating into the circular groove 16, and the rotating column 17 is rotatable relative to the circular groove 16. According to the size of the thickness of the bottom of the parts to be welded, the operator can appropriately rotate the adjusting screw rod 15 to make the screw rod 15 drive the sliding adjusting block 14 to vertically slide in the sliding groove 13, so as to form a clamping space for clamping the parts between the sliding adjusting block 14 and the bottom of the sliding groove 13, and the operator can preset the clamping space, and then through the driving of the air cylinder 6, the bottom of the parts can be simultaneously penetrated into two opposite clamping spaces. Generally, the parts for welding operation are welded in batches, so generally, the operator only needs to adjust once to complete the welding operation of a batch of parts, so the adjusting mode is not complex, and the welding operation of parts with different thickness sizes can be met.

[0036] Working principle:

[0037] Firstly, the operator places the parts to be welded which have been temporarily positioned by spot welding on the welding table 1.

[0038] Then, according to the size of the thickness of the bottom of the parts to be welded, the operator can adjust the clamping size of the clamping positioning plate 5 for clamping the parts to be welded through the adjusting unit. Specifically, the operator can appropriately rotate the adjusting screw rod 15 to make the screw rod 15 drive the sliding adjusting block 14 to vertically slide in the sliding groove 13, so as to form a clamping space for clamping the parts between the sliding adjusting block 14 and the bottom of the sliding groove 13, and the operator can preset the clamping space.

[0039] Then the operator starts the power unit, specifically, the operator starts the air cylinder 6, the telescopic end of the air cylinder 6 drives the pushing block 7 to move upwards, and then the pushing block 7 pushes the two sliding blocks 19 at the same time, the two sliding blocks 19 drive the two sliding bars 4 to slide away from each other respectively, and then the sliding bar 4 drives the two clamping positioning plates 5 to slide away, thereby leaving a space for placing the parts to be welded, then the operator places the parts on the welding table 1, and then the operator starts the air cylinder 6 again, so that the telescopic end of the air cylinder 6 retracts, thereby driving the pushing block 7 to move downwards, and then the two reset elastic members 8 push the sliding blocks 19 respectively, thereby making the sliding blocks 19 drive the sliding bars 4 and the clamping positioning plates 5 to slide close, and then the two clamping positioning plates 5 clamp the two sides of the bottom of the part, and then the welding machine can be used to weld the parts to be welded.

[0040] After welding, the operator can drive the two sliding bars 4 to slide away at the same time through the air cylinder 6 again, thereby releasing the clamping of the part, and then the operator can take the part off the welding table 1.

[0041] The above operation is repeated, so that the parts can be welded one by one.

[0042] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A positioning device for welding, comprising a welding table (1) having two support plates (2) fixed at the bottom, characterized in that, The welding table (1) is provided with a horizontal strip-shaped hole (3) penetrating through the upper and lower surfaces of the welding table (1), two sliding strips (4) are arranged in the strip-shaped hole (3) and can slide along the strip-shaped hole (3), the top of each of the two sliding strips (4) is fixed with a clamping positioning plate (5), the two clamping positioning plates (5) are opposite to each other, the inner side of each of the two clamping positioning plates (5) is provided with an adjusting unit for adjusting the clamping size range, and the bottom of the welding table (1) is provided with a power unit connected with the two sliding strips (4), and the power unit is used for simultaneously driving the two sliding strips (4) to slide away from or close to each other. The power unit comprises a cylinder (6) fixedly connected with the support plate (2), an isosceles triangular push block (7), two sliding blocks (19) each having an isosceles wedge-shaped surface matching the inclined surface of the push block (7), and two reset elastic members (8). The telescopic end of the cylinder (6) is vertically upward, the push block (7) is fixedly connected with the telescopic end of the cylinder (6), and the two symmetrical isosceles push surfaces of the push block (7) are upward and away from the cylinder (6). The two sliding blocks (19) are respectively and correspondingly fixedly connected with the two sliding strips (4), and the two isosceles push surfaces of the push block (7) are respectively and slidably connected with the two inclined surfaces of the two sliding blocks (19). The two reset elastic members (8) are horizontally arranged on the welding table (1), and the two reset elastic members (8) are respectively connected with the two sliding blocks (19).

2. A positioning device for welding as claimed in claim 1, characterized in that: The push block (7) is of a hollow structure, and a plurality of support rods (9) for supporting the inner wall of the push block (7) are fixed in the cavity of the push block (7).

3. A positioning device for welding according to claim 2, characterized in that: A push rod (10) is fixed to the top of the push block (7), the push rod (10) is slidably arranged between the two sliding blocks (19), and the push rod (10) is arranged in the strip-shaped hole (3).

4. The positioning device for welding according to claim 1, wherein: The sliding block (19) is of a hollow structure, the top of the sliding block (19) is slidably connected with the bottom of the welding table (1), a slag dropping hole (11) is formed in the top of the sliding block (19) corresponding to the strip-shaped hole (3), and a slag falling hole (12) is formed in the bottom of the sliding block (19).

5. The positioning device for welding according to claim 1, wherein: The reset elastic member (8) is of a spring material structure.

6. A positioning device for welding as defined in claim 1, wherein: The adjusting unit comprises a sliding groove (13) vertically formed in the inner side of the clamping positioning plate (5), a sliding adjusting block (14) slidably arranged in the sliding groove (13), and a vertical screw rod (15). The screw rod (15) penetrates through the top of the clamping positioning plate (5) and extends into the sliding groove (13), and the screw rod (15) is threadedly connected with the clamping positioning plate (5). The top of the sliding adjusting block (14) is provided with a cylindrical circular groove (16). The bottom of the screw rod (15) is fixed with a rotating column (17) penetrating into the circular groove (16), and the rotating column (17) can rotate relative to the circular groove (16).

7. The positioning device for welding according to claim 1, wherein: The inner side of each of the two support plates (2) is fixed with a mounting plate (18), and the bottom of the cylinder (6) is fixedly connected with the two mounting plates (18).

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