Automobile round girder welding and positioning tool

Abstract

The utility model relates to the technical field of automobile round girder welding processing, in particular to an automobile round girder welding positioning tool which comprises a workbench. An adjusting assembly is arranged on the workbench, two lifting assemblies are symmetrically arranged on the adjusting assembly, two pneumatic clamping assemblies are arranged on the two lifting assemblies correspondingly, two positioning assemblies are symmetrically arranged on the portion, between the two lifting assemblies, of the workbench, and a first piston rod can push a first extrusion plate to the outer side; a second piston rod can drive a second piston plate to extend out of a second fixing block when moving, and a two-way screw can drive two linkage plates to move towards the inner side or the outer side at the same time when rotating; and when the first electric telescopic rod stretches out and draws back, the first electric telescopic rod drives a guide strip to ascend and descend in a guide groove through a connecting plate, the effect of adjusting the clamping and positioning application range is achieved in a matched mode, compared with a traditional round girder welding and positioning tool, the application range is wider, and use convenience is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding and processing of automotive cross members, in particular to a welding positioning tooling for automotive cross members. Background Technique

[0002] The automotive cross member is an important supporting component in the automotive chassis structure. It is usually located at the front of the vehicle, used to connect the body and the suspension system, and to support and fix components such as the engine and transmission, enhancing the body strength and stability, and improving the vehicle handling and comfort. During the production and processing of the automotive cross member, welding is required, and when the cross member is damaged or broken, welding restoration is also needed. During welding, the cross member needs to be positioned.

[0003] A patent with the publication number of CN 209394238 U discloses a welding positioning tooling and a welding device for a cross member, including a chassis. Positioning seats are fixed at both ends of the chassis. The positioning seats are provided with clamping grooves for placing the shaft section parts at both ends of the cross member to be welded. At the position of the clamping groove of the positioning seat, a pressing plate is connected. The pressing plate is used to press the shaft section parts at both ends of the cross member into the clamping groove. The chassis is also provided with a bottom pressing device for pressing the bottom end face of the cross member to be welded. The welding device can perform automatic welding, reducing the labor intensity of the operator and the requirements for the welding skill level of the operator, and improving the welding quality.

[0004] However, since the existing cross member clamping and positioning is through bolt fastening and clamping, the operation is cumbersome, resulting in inconvenient use. Moreover, the sizes of cross members of different vehicles are also different. The positioning applicable size of the existing cross member positioning tooling is fixed and cannot fixedly clamp cross members of different sizes, resulting in a small applicable range. Therefore, a welding positioning tooling for automotive cross members is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the deficiencies of the prior art and solve the problems existing in the prior art, the utility model proposes a welding positioning tooling for automotive cross members.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: A welding positioning tooling for automotive cross members of the utility model includes a workbench; an adjustment component is arranged on the workbench, two groups of lifting components are symmetrically arranged on the adjustment component, two groups of pneumatic clamping components are respectively arranged on the two groups of lifting components, a gas supply component is arranged under the workbench, and two groups of positioning components are symmetrically arranged on the workbench between the two groups of lifting components;

[0007] The lifting assembly includes a U-shaped member. Guide grooves are vertically formed on the inner walls of the two parallel openings of the U-shaped member. Guide bars are slidably arranged in the two guide grooves, and the acting ends of the two pneumatic clamping assemblies are symmetrically and inwardly installed on the two guide bars respectively. One electric telescopic rod is vertically installed on each of the two outer walls of the U-shaped member that are parallel to each other, and the top end of the one electric telescopic rod is fixedly connected to the guide bar through a connecting plate;

[0008] The pneumatic clamping assembly includes a first fixed block. A first air inlet cavity is formed in the first fixed block. Two through grooves communicating with the first air inlet cavity are formed through the side of the first fixed block. First piston rods are respectively arranged through the two through grooves. The ends of the two first piston rods located in the first air inlet cavity are jointly installed with a first piston plate, and the ends of the two first piston rods located outside the first fixed block are jointly installed with a first pressing plate;

[0009] The positioning assembly includes a second fixed block. A second air inlet cavity is formed in the second fixed block. A plurality of translation cavities are uniformly distributed on the side of the second air inlet cavity. Connecting cavities communicating with the translation cavities are formed on the side of the second fixed block. Second piston plates are respectively arranged through the connecting cavities. The ends of the second piston plates located in the translation cavities are fixedly connected with second piston rods, and the sides of the second piston plates located outside the second fixed block are fixedly connected with second pressing plates. The cooperation achieves the effect of adjusting the applicable range of clamping and positioning, and has a wider applicable range compared with the traditional positioning tooling for welding the cross member, effectively improving the use convenience.

[0010] Preferably, the adjustment assembly includes two chutes and two side plates that are parallelly formed on the workbench. The two side plates are symmetrically installed under the workbench. Two limiting rods are fixedly connected in parallel between the two side plates. Two sliding seats are respectively slidably arranged on the two limiting rods. The cooperation achieves the effect of limiting.

[0011] Preferably, the tops of the four sliding seats are respectively arranged through the two chutes. The two lifting assemblies are symmetrically installed on the tops of the four sliding seats. Linking plates are fixedly connected between the two sliding seats on both sides. The cooperation achieves the effect of driving the four sliding seats to move, so as to drive the U-shaped member to move.

[0012] Preferably, the linking plates are parallel to the side plates. Thread holes are formed through the sides of the two linking plates. A bidirectional screw rod is rotatably installed between the two side plates. The cooperation achieves the effect of the two linking plates moving inwards or outwards simultaneously, so as to adjust the applicable range of the positioning fixture.

[0013] Preferably, the bidirectional screw rod is disposed through the threaded holes formed in the two linkage plates. The two linkage plates are symmetrically arranged at both ends of the bidirectional screw rod. One end of the bidirectional screw rod penetrates through the side plate and is fixedly connected to the output end of the driving motor, and the driving motor is installed under the workbench through a fixing member, achieving the driving effect in cooperation.

[0014] Preferably, the air supply assembly includes two air storage chambers and two second electric telescopic rods. The two air storage chambers are both fixed under the workbench through fixing frames. The two second electric telescopic rods are fixedly connected in parallel under the workbench through fixing members. The acting ends of the two second electric telescopic rods respectively penetrate through the two air storage chambers and are fixedly connected with third piston plates. And the ends of the two air storage chambers opposite to the second electric telescopic rods are both communicated with the first air inlet chamber and the second air inlet chamber through connecting hoses, achieving the effect of controlling air supply in cooperation, so as to position and clamp the cross member.

[0015] Preferably, the two first pressing plates in the two pneumatic clamping assemblies are located inside the two first fixing blocks, and the second pressing plates in the two positioning assemblies are located inside the two second fixing blocks. The side of the workbench is fixedly connected with legs for support, achieving the supporting effect in cooperation.

[0016] The beneficial effects of the present utility model are as follows:

[0017] After the gas enters the first air inlet chamber in the present utility model, it will push the first piston plate to slide in the first air inlet chamber. After the first piston rod is pushed out, it will push the first pressing plate outward, and then fix and clamp the end of the cross member through the first pressing plate. When the second piston rod moves, it will drive the second piston plate to extend outside the second fixing block, and then position and fix the middle section of the cross member through the second pressing plate. When the bidirectional screw rod rotates, it will drive the two linkage plates to move inward or outward simultaneously, and then drive the two U-shaped members to move inward or outward simultaneously. By controlling the first electric telescopic rod to expand and contract, when the first electric telescopic rod expands and contracts, it will drive the guide bar to rise and fall in the guide groove through the connecting plate, so as to adjust the height of the first fixing block, achieving the effect of adjusting the applicable range of clamping and positioning in cooperation. Compared with the traditional cross member welding positioning tooling, the applicable range is wider, effectively improving the use convenience. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is the first three-dimensional structure diagram;

[0020] Figure 2 Schematic enlarged view of the main structure of the adjustment component

[0021] Figure 3 Schematic enlarged sectional view of the main structure of the No. 2 fixing block

[0022] Figure 4 Schematic enlarged view of the main structure of the lifting component

[0023] Figure 5 Schematic enlarged sectional view of the main structure of the No. 1 fixing block

[0024] Figure 6 Schematic enlarged view of the main structures of the air supply component and the adjustment component

[0025] In the figure: 1, workbench; 2, sliding groove; 3, side plate; 4, limiting rod; 5, sliding seat; 6, linkage plate; 7, bidirectional screw; 8, driving motor; 9, U-shaped part; 10, guiding groove; 11, guiding strip; 12, No. 1 electric telescopic rod; 13, connecting plate; 14, No. 1 fixing block; 15, No. 1 air inlet cavity; 16, No. 1 piston plate; 17, No. 1 piston rod; 18, No. 1 pressing plate; 19, No. 2 fixing block; 20, No. 2 air inlet cavity; 21, translation cavity; 22, connecting cavity; 23, No. 2 piston rod; 24, No. 2 piston plate; 25, No. 2 pressing plate; 26, fixing frame; 27, air storage cavity; 28, No. 2 electric telescopic rod; 29, No. 3 piston plate; 30, connecting hose; 31, leg Detailed implementation manners

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention

[0027] Please refer to Figure 1-6 As shown, an automobile cross member welding positioning tooling includes a workbench 1; an adjustment component is arranged on the workbench 1, two groups of lifting components are symmetrically arranged on the adjustment component, two groups of pneumatic clamping components are respectively arranged on the two groups of lifting components, an air supply component is arranged under the workbench 1, and two groups of positioning components are symmetrically arranged on the workbench 1 between the two groups of lifting components

[0028] The lifting assembly includes a U-shaped member 9. Guide grooves 10 are vertically formed on the inner walls of the two parallel openings of the U-shaped member 9. Guide bars 11 are slidably arranged in the two guide grooves 10, and the acting ends of the two pneumatic clamping assemblies are symmetrically and inwardly installed on the two guide bars 11 respectively. One-way electric telescopic rods 12 are vertically installed on the outer walls of the two parallel sides of the U-shaped member 9, and the top ends of the one-way electric telescopic rods 12 are fixedly connected to the guide bars 11 through connecting plates 13;

[0029] The pneumatic clamping assembly includes a first fixed block 14. A first air inlet cavity 15 is formed in the first fixed block 14. Two through grooves communicating with the first air inlet cavity 15 are formed through the side of the first fixed block 14. First piston rods 17 are respectively arranged through the two through grooves. The ends of the two first piston rods 17 located in the first air inlet cavity 15 are jointly installed with a first piston plate 16, and the ends of the two first piston rods 17 located outside the first fixed block 14 are jointly installed with a first pressing plate 18;

[0030] The positioning assembly includes a second fixed block 19. A second air inlet cavity 20 is formed in the second fixed block 19. A plurality of translation cavities 21 evenly distributed are formed on the side of the second air inlet cavity 20. A plurality of connection cavities 22 communicating with the translation cavities 21 are formed on the side of the second fixed block 19. Second piston plates 24 are respectively arranged through the connection cavities 22. The ends of the second piston plates 24 located in the translation cavities 21 are fixedly connected with second piston rods 23, and the sides of the second piston plates 24 located outside the second fixed block 19 are fixedly connected with second pressing plates 25.

[0031] The adjustment assembly includes two chutes 2 and two side plates 3 which are parallelly formed on a workbench 1. The two side plates 3 are symmetrically installed under the workbench 1 and are located outside the two chutes 2 vertically arranged. Two limiting rods 4 are fixedly connected in parallel between the two side plates 3, and two sliding seats 5 are slidably arranged on the two limiting rods 4 respectively.

[0032] The top ends of the four sliding seats 5 are respectively arranged through the two chutes 2. The two groups of lifting assemblies are symmetrically installed on the top ends of the four sliding seats 5. Linking plates 6 are fixedly connected between the two sliding seats 5 on both sides respectively.

[0033] The linking plates 6 are parallel to the side plates 3. Threaded holes are formed through the sides of the two linking plates 6. A bidirectional screw rod 7 is rotatably installed between the two side plates 3.

[0034] The bidirectional screw rod 7 is arranged through the threaded holes formed in the two linking plates 6. The two linking plates 6 are symmetrically arranged at both ends of the bidirectional screw rod 7. One end of the bidirectional screw rod 7 penetrates through the side plate 3 and is fixedly connected to the output end of a driving motor 8, and the driving motor 8 is installed under the workbench 1 through a fixing member.

[0035] The air supply assembly includes two air storage chambers 27 and two second electric telescopic rods 28. Both of the two air storage chambers 27 are fixed under the workbench 1 through a fixing frame 26. Both of the two second electric telescopic rods 28 are fixedly connected in parallel under the workbench 1 through fixing members. The acting ends of the two second electric telescopic rods 28 respectively penetrate into the two air storage chambers 27 and are fixedly connected with a third piston plate 29. And the ends of the two air storage chambers 27 opposite to the second electric telescopic rods 28 are communicated with the first air inlet chamber 15 and the second air inlet chamber 20 through connecting hoses 30.

[0036] The two first pressing plates 18 in the two groups of pneumatic clamping assemblies are located inside the two first fixing blocks 14. The second pressing plates 25 in the two groups of positioning assemblies are located inside the two second fixing blocks 19. The air supply assembly is connected and communicated with the second air inlet chamber 20 and the first air inlet chamber 15 through hoses respectively. The side of the workbench 1 is fixedly connected with legs 31 for support.

[0037] During operation, since the existing clamping and positioning of the cross member is achieved by bolt tightening, the operation is cumbersome, resulting in inconvenient use. Moreover, the sizes of cross members of different vehicles are also different, and the applicable size of the existing cross member positioning tooling is fixed, unable to fixedly clamp cross members of different sizes, resulting in a small applicable range. In this solution, the cross member is placed on the workbench 1, with its middle section set between two second fixing blocks 19, and the two ends of the cross member are respectively placed within the openings of two U-shaped members 9 and located between the first fixing blocks 14 on both sides. Subsequently, the second electric telescopic rod 28 is controlled to extend. When the second electric telescopic rod 28 extends, it will push the third piston plate 29 within the air storage chamber 27. When the third piston plate 29 moves within the air storage chamber 27, the gas within the air storage chamber 27 will be conveyed into the first air inlet chamber 15 and the second air inlet chamber 20 through the connecting hose 30. When the gas enters the first air inlet chamber 15, it will push the first piston plate 16 to slide within the first air inlet chamber 15. When the first piston plate 16 moves, it will push out the first piston rod 17. After the first piston rod 17 is pushed out, it will push the first pressing plate 18 outward, thereby enabling the first piston rods 17 within the two sets of oppositely arranged first fixing blocks 14 to fix and clamp the end of the cross member through the first pressing plate 18 when they extend. When the gas enters the second air inlet chamber 20, it will push the second piston rod 23 to slide within the translation chamber 21. When the second piston rod 23 moves, it will drive the second piston plate 24 to extend outward from the second fixing block 19. When the second piston plate 24 extends, it will push the second pressing plate 25, thereby enabling the second piston plates 24 within the two oppositely arranged second fixing blocks 19 to position and fix the middle section of the cross member through the second pressing plate 25 when they extend. Moreover, by using the gas to push multiple second piston plates 24 to extend, the second pressing plate 25 can be made to fit the surface of cross members of different shapes, so as to position and clamp cross members of different shapes. When it is necessary to remove the cross member, the second electric telescopic rod 28 is controlled to contract. When the second electric telescopic rod 28 contracts, it will draw back the gas injected into the first air inlet chamber 15 and the second air inlet chamber 20 into the air storage chamber 27 through the third piston plate 29. After the gas within the first air inlet chamber 15 and the second air inlet chamber 20 is drawn out, the first piston rod 17 and the second piston plate 24 will contract, unlocking the clamping of the cross member. When adjustment is required, the driving motor 8 is controlled to drive. When the driving motor 8 operates, it will drive the bidirectional screw rod 7 to rotate. When the bidirectional screw rod 7 rotates, it will drive the two linkage plates 6 to move inward or outward simultaneously. When the two linkage plates 6 move, they will slide on the limiting rod 4 through the sliding seats 5. When the two linkage plates 6 move, they will drive the sliding seats 5 on both sides to move within the sliding grooves 2, thereby driving the two U-shaped members 9 to move inward or outward simultaneously, thereby adjusting the distance between the two U-shaped members 9 and adjusting the distance between the pneumatic clamping assemblies on both sides. By controlling the first electric telescopic rod 12 to extend and contract, when the first electric telescopic rod 12 extends and contracts, it will drive the guide bar 11 to move up and down within the guide groove 10 through the connecting plate 13.When the guiding bar 11 moves up and down, it will drive the first fixing block 14 installed on its side to move up and down, so as to adjust the height of the first fixing block 14, and cooperate to achieve the effect of adjusting the applicable range of clamping and positioning, which has a wider applicable range than the traditional welding positioning tooling for the cross member.

[0038] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A welding and positioning tool for automobile ingot beam, characterized in that: The invention comprises a workbench (1); the workbench (1) is provided with an adjustment component, the adjustment component is symmetrically provided with two groups of lifting components, the two groups of lifting components are respectively provided with two groups of pneumatic clamping components, an air supply component is provided under the workbench (1), and two groups of positioning components are symmetrically provided on the workbench (1) and located between the two groups of lifting components; The lifting assembly comprises a U-shaped member (9), two parallel opening inner walls of the U-shaped member (9) are vertically provided with guide grooves (10), guide strips (11) are slidably arranged in the two guide grooves (10), and the action ends of the two groups of pneumatic clamping assemblies are symmetrically installed inwardly on the two guide strips (11) respectively, and two parallel outer walls of the U-shaped member (9) are vertically provided with a first electric telescopic rod (12), and the top end of the first electric telescopic rod (12) is fixedly connected to the guide strip (11) through a connecting plate (13); The pneumatic clamping assembly comprises a No. 1 fixed block (14), a No. 1 air inlet cavity (15) is provided in the No. 1 fixed block (14), two through grooves communicating with the No. 1 air inlet cavity (15) are provided through the side of the No. 1 fixed block (14), a No. 1 piston rod (17) is provided through the two through grooves respectively, a No. 1 piston plate (16) is installed together at the ends of the two No. 1 piston rods (17) located in the No. 1 air inlet cavity (15), and a No. 1 extrusion plate (18) is installed together at the ends of the two No. 1 piston rods (17) located outside the No. 1 fixed block (14); The positioning assembly comprises a No. 2 fixed block (19), a No. 2 air intake chamber (20) is provided in the No. 2 fixed block (19), a plurality of evenly distributed translation chambers (21) are provided on the side of the No. 2 air intake chamber (20), a plurality of connecting chambers (22) in communication with the translation chamber (21) are provided on the side of the No. 2 fixed block (19), a No. 2 piston plate (24) is provided through the connecting chamber (22), the end of the No. 2 piston plate (24) located in the translation chamber (21) is fixedly connected to a No. 2 piston rod (23), and the side of the No. 2 piston plate (24) located outside the No. 2 fixed block (19) is fixedly connected to a No. 2 extrusion plate (25).

2. The automobile ingot beam welding and positioning tool according to claim 1, characterized in that: The adjustment assembly comprises two slide grooves (2) and two side plates (3) which are arranged in parallel on the workbench (1); the two side plates (3) are symmetrically installed under the workbench (1); two limit rods (4) are fixedly connected in parallel between the two side plates (3); and two slide seats (5) are slidably arranged on the two limit rods (4), respectively.

3. The automobile ingot beam welding and positioning tool according to claim 2, characterized in that: The top ends of the four slide seats (5) are respectively arranged in two slide grooves (2), and the two groups of lifting components are symmetrically installed on the top ends of the four slide seats (5). Linkage plates (6) are respectively fixedly connected between the slide seats (5) on both sides.

4. The automobile ingot beam welding and positioning tool according to claim 3 is characterized in that: The linkage plate (6) and the side plate (3) are parallel to each other, threaded holes are penetrated through the sides of the two linkage plates (6), and a bidirectional screw rod (7) is rotatably installed between the two side plates (3).

5. The automobile ingot beam welding and positioning tool according to claim 4, characterized in that: The bidirectional screw (7) is inserted into threaded holes provided in two linkage plates (6), and the two linkage plates (6) are symmetrically arranged at both ends of the bidirectional screw (7). One end of the bidirectional screw (7) passes through the side plate (3) and is fixedly connected to the output end of the drive motor (8), and the drive motor (8) is installed under the workbench (1) through a fixing member.

6. The automobile ingot beam welding and positioning tool according to claim 1, characterized in that: The air supply assembly comprises two air storage chambers (27) and two No. 2 electric telescopic rods (28). The two air storage chambers (27) are fixed under the workbench (1) through a fixing frame (26). The two No. 2 electric telescopic rods (28) are fixedly connected to the workbench (1) in parallel through fixing members. The action ends of the two No. 2 electric telescopic rods (28) are respectively arranged in the two air storage chambers (27) and fixedly connected with No. 3 piston plates (29). The ends of the two air storage chambers (27) opposite to the No. 2 electric telescopic rods (28) are connected to the No. 1 air inlet chamber (15) and the No. 2 air inlet chamber (20) through connecting hoses (30).

7. The automobile ingot beam welding and positioning tool according to claim 1, characterized in that: The two No. 1 extrusion plates (18) in the two groups of pneumatic clamping assemblies are located inside the two No. 1 fixing blocks (14), the No. 2 extrusion plates (25) in the two groups of positioning assemblies are located inside the two No. 2 fixing blocks (19), and the side of the workbench (1) is fixedly connected with a supporting leg (31).

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