A clamp with automatic pin withdrawing function for welding three-in-one support of new energy vehicle

Abstract

The utility model discloses a kind of clamps with automatic unpinning function for new energy automobile three-in-one support welding, it is characterized by: including bottom plate, is respectively provided with on bottom plate: positioning clamping assembly, front support positioning assembly: front support positioning assembly, front support clamping assembly.The utility model is moved by first guide rod air cylinder, second guide rod air cylinder respectively with first positioning pin, second positioning pin, make two positioning pins to separate spare parts, reach the purpose of initiative unpinning, the utility model structure design compact and reasonable, can significantly improve work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of tooling and fixture technology, specifically relating to a fixture with automatic pin removal function for welding three-in-one brackets for new energy vehicles, and in particular a welding fixture with spatial angle for part positioning holes, which requires pin removal after welding to remove the part. Background Technology

[0002] Brackets are common automotive chassis frame parts used to provide support for the installation of corresponding components. In new energy vehicles, due to higher integration and considerations for installation reliability and space, multiple mounting brackets are typically integrated into a single bracket assembly. Each mounting bracket generally has a certain angle to the horizontal plane, and its manufacturing process usually employs stamping and welding. When welding the stamped parts into a single assembly, the misalignment of the positioning holes on the left and right brackets prevents the welded assembly from being easily removed from the fixture. Traditional manual fixtures rely on manually inserting and removing positioning pins, resulting in high labor intensity and low production efficiency.

[0003] To solve the problem of the welded assembly being unable to be removed from the fixture, a fixture that can automatically retract the locating pin is needed to facilitate the unloading of the welded assembly. Utility Model Content

[0004] The purpose of this invention is to provide a fixture with an automatic pin removal function for welding three-in-one brackets for new energy vehicles, so as to solve the problem of automatic pin removal after welding of bracket-type parts for new energy vehicles.

[0005] The technical solution adopted by this utility model is: a fixture with automatic pin retraction function for welding three-in-one brackets for new energy vehicles, characterized in that: it includes a base plate, on which are respectively provided: positioning and clamping components: there are five sets of positioning and clamping components, namely, left rear bracket positioning and clamping component, right rear bracket positioning and clamping component, and three-in-one bracket body positioning and clamping component I, three-in-one bracket body positioning and clamping component II, and three-in-one bracket body positioning and clamping component III, which respectively cooperate with the left rear bracket, right rear bracket and three-in-one bracket body of the workpiece three-in-one bracket welding assembly; Upper bracket positioning and clamping assembly: cooperates with the upper bracket of the workpiece three-in-one bracket welding assembly; Front bracket positioning assembly: There are two sets of front bracket positioning assemblies, namely the left front bracket positioning assembly and the right front bracket positioning assembly, which cooperate with the left front bracket and the right front bracket of the three-in-one bracket welding assembly to play a positioning role; Front bracket clamping assembly: There are two sets of front bracket clamping assemblies, namely the left front bracket clamping assembly and the right front bracket clamping assembly, which cooperate with the left front bracket and the right front bracket of the three-in-one bracket welding assembly to perform a clamping function.

[0006] Furthermore: the upper bracket positioning and clamping assembly includes an upper bracket clamping assembly base, on which a second guide rod cylinder and a second limiting pull rod are provided; a second limiting plate is fixed on the piston rod of the second guide rod cylinder, a corner cylinder is fixed on the second limiting plate, and a clamping pressure plate that cooperates with the upper bracket is fixed at the end of the piston rod of the corner cylinder. The second limiting plate is also provided with a second positioning pin that cooperates with the upper bracket; It also includes a second movable limit block and a second fixed limit block that engage in contact; the second movable limit block and the second fixed limit block are respectively disposed on the second limit plate and the second limit rod.

[0007] Further: the front bracket positioning assembly includes a first guide rod cylinder mounted on the base of the guide rod cylinder, a first limiting plate is vertically mounted on the piston rod end of the first guide rod cylinder, the first limiting plate is parallel to and in contact with the bottom surface of the left front bracket or the right front bracket, and a circular positioning pin and a diamond positioning pin are mounted on the first limiting plate. It also includes a first fixed limit block and a first movable limit block that are in contact with each other; the first fixed limit block and the first movable limit block are respectively disposed on the first limit rod and the first limit plate, and the first limit rod is fixed on the guide rod cylinder base.

[0008] Further: the front support clamping assembly includes a clamping cylinder base and a first clamping cylinder disposed on the clamping cylinder base.

[0009] Furthermore: the left rear bracket positioning and clamping assembly includes a left rear bracket clamping assembly base, a left rear bracket positioning block and a second clamping cylinder are provided on the left rear bracket clamping assembly base, a first positioning pin that cooperates with the left rear bracket is provided on the left rear bracket positioning block, and a left rear bracket clamping pressure plate that cooperates with the left rear bracket is connected to the piston rod end of the second clamping cylinder.

[0010] The beneficial effects of this utility model are: the first guide rod cylinder and the second guide rod cylinder drive the first positioning pin and the second positioning pin to move respectively, so that the two positioning pins are disengaged from the parts, thereby achieving the purpose of active pin release. The structure of this utility model is compact and reasonable, which can significantly improve the work efficiency. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the front bracket positioning assembly of this utility model; Figure 3 This is a schematic diagram of the workpiece of this utility model, namely the three-in-one bracket part; Figure 4 This is a schematic diagram of the positioning and clamping assembly structure of this utility model; Figure 5 This is a schematic diagram of the upper bracket positioning and clamping assembly structure of this utility model.

[0013] The numbers in the diagram are explained as follows: 1. Left front bracket clamping assembly; 2. Left front bracket positioning assembly; 3. Left rear bracket positioning and clamping assembly; 4. Three-in-one bracket body positioning and clamping assembly I; 5. Upper bracket positioning and clamping assembly; 6. Three-in-one bracket body positioning and clamping assembly II; 7. Three-in-one bracket welding assembly; 8. Right rear bracket positioning and clamping assembly; 9. Base plate; 10. Right front bracket positioning assembly; 11. Right front bracket clamping assembly; 12. Three-in-one bracket body positioning and clamping assembly III. 1-1 First clamping cylinder; 1-2 Clamping cylinder base; 1-3 Clamping arm; 2-1 Circular locating pin; 2-2 Rhomboid locating pin; 2-3 First locating plate; 2-4 Guide rod cylinder base; 2-5 First guide rod cylinder; 2-6 First movable limit block; 2-7 First fixed limit block; 2-8 First limit pull rod; 3-1. Left rear bracket clamping assembly base; 3-2. Left rear bracket positioning block; 3-3. First positioning pin; 3-4. Left rear bracket clamping pressure plate; 3-5. Second clamping cylinder. 5-1. Upper bracket clamping assembly base; 5-2. Second limit pull rod; 5-3. Second guide rod cylinder; 5-4. Second positioning plate; 5-5. Corner cylinder; 5-6. Second positioning pin; 5-7. Clamping pressure plate; 5-8. Second movable limit block; 5-9. Second fixed limit block. 7-1 Left front bracket; 7-2 Left rear bracket; 7-3 Three-in-one bracket body; 7-4 Upper bracket; 7-5 Right rear bracket; 7-6 Right front bracket. Detailed Implementation

[0014] Reference Appendix Figure 1-5 This utility model provides a clamp with an automatic pin retraction function for welding a three-in-one bracket for new energy vehicles, including a base plate 9, on which are respectively provided by welding or bolt connection, etc.: Positioning and clamping components: There are five sets of positioning and clamping components, namely the left rear bracket positioning and clamping component 3, the right rear bracket positioning and clamping component 8, and the three-in-one bracket body positioning and clamping component I 4, the three-in-one bracket body positioning and clamping component II 6, and the three-in-one bracket body positioning and clamping component III 12. They cooperate with the front and rear sides of the left rear bracket 7-2, the right rear bracket 7-5, and the three-in-one bracket body 7-3 of the workpiece three-in-one bracket welding assembly 7, respectively. The components are equipped with positioning pins and clamping cylinders for positioning and clamping. Upper bracket positioning and clamping assembly 5: cooperates with the upper bracket 7-4 of the workpiece three-in-one bracket welding assembly 7; Front Brake Positioning Assembly: There are two sets of front bracket positioning assemblies, namely the left front bracket positioning assembly 2 and the right front bracket positioning assembly 10, which cooperate with the left front bracket 7-1 and the right front bracket 7-6 of the three-in-one bracket welding assembly 7 to play a positioning role. Front bracket clamping assembly: There are two sets of front bracket clamping assemblies, namely left front bracket clamping assembly 1 and right front bracket clamping assembly 11, which cooperate with the left front bracket 7-1 and right front bracket 7-6 of the three-in-one bracket welding assembly 7 to perform clamping function.

[0015] Preferably, the upper bracket positioning and clamping assembly 5 includes an upper bracket clamping assembly base 5-1, on which a second guide rod cylinder 5-3 and a second limiting pull rod 5-2 are provided; a second limiting plate 5-4 is fixed on the piston rod of the second guide rod cylinder 5-3, and a corner cylinder 5-5 is fixed on the second limiting plate 5-4; a clamping pressure plate 5-7 that cooperates with the upper bracket 7-4 is fixed at the end of the piston rod of the corner cylinder 5-5. A second positioning pin 5-6 that cooperates with the upper bracket 7-4 is also provided on the second limiting plate 5-4; It also includes a second movable limiting block 5-8 and a second fixed limiting block 5-9 that are in contact with each other; the second movable limiting block 5-8 and the second fixed limiting block 5-9 are respectively disposed on the second limiting plate 5-4 and the second limiting rod 5-2. The two limiting blocks are in contact, which can limit the extension length of the cylinder piston and thus play a limiting role.

[0016] Preferred: The front bracket positioning assembly includes a first guide rod cylinder 2-5 disposed on the guide rod cylinder base 2-4. A first limiting plate 2-3 is vertically disposed at the piston rod end of the first guide rod cylinder 2-5. The first limiting plate 2-3 is parallel to and in contact with the bottom surface of the left front bracket 7-1 or the right front bracket 7-6. A circular positioning pin 2-1 and a diamond-shaped positioning pin 2-2 are disposed on the first limiting plate 2-3. It also includes a first fixed limiting block 2-7 and a first movable limiting block 2-6 that are in contact with each other; the first fixed limiting block 2-7 and the first movable limiting block 2-6 are respectively disposed on the first limiting rod 2-8 and the first limiting plate 2-3, and the first limiting rod 2-8 is fixed on the guide rod cylinder base 2-4.

[0017] Preferably, the front support clamping assembly includes a clamping cylinder base 1-2 and a first clamping cylinder 1-1 disposed on the clamping cylinder base 1-2. A clamping arm 1-3 is fixed on the piston rod of the first clamping cylinder 1-1. The clamping cylinder base is connected to the support seat through a corresponding fixed seat.

[0018] Preferably, all five sets of positioning and clamping assemblies have the same structure. Taking the left rear bracket positioning and clamping assembly as an example, the following description is provided: The left rear bracket positioning and clamping assembly 3 includes a left rear bracket clamping assembly base 3-1. A left rear bracket positioning block 3-2 and a second clamping cylinder 3-5 are provided on the left rear bracket clamping assembly base 3-1. A first positioning pin 3-3 that cooperates with the left rear bracket 7-2 is provided on the left rear bracket positioning block 3-2. The piston rod end of the second clamping cylinder 3-5 is connected to a left rear bracket clamping pressure plate 3-4 that cooperates with the left rear bracket 7-2.

[0019] The following specific embodiments further illustrate this solution in comparison with other solutions.

[0020] This utility model includes a base plate 9, a left front bracket clamping assembly 1 assembled on the base plate, a left front bracket positioning assembly 2 assembled on the base plate, a left rear bracket positioning clamping assembly 3 assembled on the base plate, three-in-one bracket body positioning clamping assemblies 4, 6, and 12 assembled on the base plate, an upper bracket positioning clamping assembly 5 assembled on the base plate, a right rear bracket positioning clamping assembly 8 assembled on the base plate, a right front bracket clamping assembly 11 assembled on the base plate, and a right front bracket positioning assembly 10 assembled on the base plate; the left front bracket positioning assembly consists of a guide rod cylinder seat 2-4, a first guide rod cylinder 2-5 assembled on the guide rod cylinder seat, a first limiting pull rod 2-8 assembled on the guide rod cylinder base, a first limiting plate 2-3 assembled on the upper end of the guide rod cylinder, a circular positioning pin 2-1 and a diamond-shaped positioning pin 2-2 assembled on the lower upper side of the positioning plate, a first movable limiting block 2-6 assembled on the middle of the upper upper part of the positioning plate, and a first fixed limiting block 2-7 assembled on the limiting pull rod.

[0021] When clamping parts, the piston of the first guide rod cylinder 2-5 of the left front bracket positioning assembly 2 extends first, driving the first limiting plate 2-3, positioning pins 2-1 and 2-2, and the first movable limiting block 2-6 to move. When the first movable limiting block 2-6 contacts the first fixed limiting block 2-7, the first limiting plate 2-3, the circular positioning pin 2-1, and the diamond-shaped positioning pin 2-2 reach the preset position. At this time, the left front bracket 7-1 is placed on the fixture positioning surface, so that the two positioning holes cooperate with the fixture positioning pins. The first clamping cylinder 1-1 clamps the left front bracket 7-1. The clamping principle of the right front bracket 7-6 is the same as that of the left front bracket and is carried out synchronously. Subsequently, the left rear bracket 7-2, the right rear bracket 7-5, the three-in-one bracket body 7-3, and the upper bracket 7-4 are installed and clamped in place, and the welding operation begins.

[0022] After welding, the piston of the first guide rod cylinder 2-5 of the left front bracket positioning assembly 2 retracts, causing the positioning pin to actively disengage from the left front bracket 7-1. The right front bracket positioning assembly 10 operates simultaneously, solving the problem of manually removing the pin. Finally, all clamping cylinders are released, the parts are removed, and the cycle begins.

[0023] The diameter of the first guide rod cylinder 2-5 is larger than that of the first clamping cylinder 1-1 to prevent the clamping force of the clamping cylinder from exceeding the supporting force of the guide rod cylinder, thus preventing the part from being positioned correctly.

[0024] In this design, each locating pin is moved and retracted by a corresponding locating cylinder; each clamping cylinder is a tilting cylinder, whose free end can be tilted, cooperating with clamping arms to clamp or release the workpiece. In this structure, each locating pin is positioned and engaged with the process hole of the workpiece, and each locating pin moves perpendicular to its corresponding workpiece. During retraction, it does not interfere with the workpiece, thus achieving automatic pin retraction, after which the workpiece can be removed. This structure is convenient to operate, provides reliable clamping and positioning, and greatly facilitates welding operations.

Claims

1. A clamp with automatic pin release function for welding three-in-one brackets for new energy vehicles, characterized in that: Including the base plate (9), on which are respectively provided: Positioning and clamping components: There are five sets of positioning and clamping components, namely the left rear bracket positioning and clamping component (3), the right rear bracket positioning and clamping component (8), and the three-in-one bracket body positioning and clamping component I (4), the three-in-one bracket body positioning and clamping component II (6), and the three-in-one bracket body positioning and clamping component III (12), which are respectively matched with the left rear bracket (7-2), the right rear bracket (7-5), and the three-in-one bracket body (7-3) of the workpiece three-in-one bracket welding assembly (7); Upper bracket positioning and clamping assembly (5): cooperates with the upper bracket (7-4) of the workpiece three-in-one bracket welding assembly (7); Front bracket positioning assembly: There are two sets of front bracket positioning assemblies, namely the left front bracket positioning assembly (2) and the right front bracket positioning assembly (10), which cooperate with the left front bracket (7-1) and the right front bracket (7-6) of the three-in-one bracket welding assembly (7) to play a positioning role; Front bracket clamping assembly: There are two sets of front bracket clamping assemblies, namely the left front bracket clamping assembly (1) and the right front bracket clamping assembly (11), which cooperate with the left front bracket (7-1) and the right front bracket (7-6) of the three-in-one bracket welding assembly (7) to perform clamping function.

2. The fixture with automatic pin release function for welding a three-in-one bracket for new energy vehicles according to claim 1, characterized in that: The upper bracket positioning and clamping assembly (5) includes an upper bracket clamping assembly base (5-1), on which a second guide rod cylinder (5-3) and a second limiting pull rod (5-2) are provided; a second limiting plate (5-4) is fixed on the piston rod of the second guide rod cylinder (5-3), and a corner cylinder (5-5) is fixed on the second limiting plate (5-4); a clamping pressure plate (5-7) that cooperates with the upper bracket (7-4) is fixed at the end of the piston rod of the corner cylinder (5-5). A second positioning pin (5-6) that cooperates with the upper bracket (7-4) is also provided on the second limiting plate (5-4). It also includes a second movable limiting block (5-8) and a second fixed limiting block (5-9) that engage in contact; the second movable limiting block (5-8) and the second fixed limiting block (5-9) are respectively disposed on the second limiting plate (5-4) and the second limiting rod (5-2).

3. A fixture with automatic pin release function for welding a three-in-one bracket for new energy vehicles according to claim 1, characterized in that: The front bracket positioning assembly includes a first guide rod cylinder (2-5) mounted on a guide rod cylinder base (2-4). A first limiting plate (2-3) is vertically mounted on the piston rod end of the first guide rod cylinder (2-5). The first limiting plate (2-3) is parallel to and in contact with the bottom surface of the left front bracket (7-1) or the right front bracket (7-6). A circular positioning pin (2-1) and a diamond-shaped positioning pin (2-2) are mounted on the first limiting plate (2-3). It also includes a first fixed limiting block (2-7) and a first movable limiting block (2-6) that are in contact with each other; the first fixed limiting block (2-7) and the first movable limiting block (2-6) are respectively set on the first limiting rod (2-8) and the first limiting plate (2-3), and the first limiting rod (2-8) is fixed on the guide rod cylinder base (2-4).

4. A clamp with automatic pin release function for welding a three-in-one bracket for new energy vehicles according to claim 1, characterized in that: The front bracket clamping assembly includes a clamping cylinder base (1-2) and a first clamping cylinder (1-1) disposed on the clamping cylinder base (1-2).

5. A fixture with automatic pin release function for welding a three-in-one bracket for new energy vehicles according to claim 1, characterized in that: The left rear bracket positioning and clamping assembly (3) includes a left rear bracket clamping assembly base (3-1), a left rear bracket positioning block (3-2) and a second clamping cylinder (3-5) are provided on the left rear bracket clamping assembly base (3-1), a first positioning pin (3-3) that cooperates with the left rear bracket (7-2) is provided on the left rear bracket positioning block (3-2), and the piston rod end of the second clamping cylinder (3-5) is connected to a left rear bracket clamping pressure plate (3-4) that cooperates with the left rear bracket (7-2).

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