CN220611941U - Rear auxiliary frame punching robot workstation - Google Patents

Abstract

The utility model relates to the technical field of automobile chassis manufacturing, specifically a rear subframe punching robot workstation, which includes a conveyor table, a workpiece fixture, a robot and a punching clamp mechanism. The conveyor table includes a base, a sliding table and a sliding table. The cylinder and the slide table are slidably installed on the base. The bottom of the slide table is connected to the slide table cylinder. There is a support and positioning device above the slide table. The workpiece fixture includes a clamp frame and a clamping piece fixed below the clamp frame. The clamp frame One side is fixedly connected to the robot. Compared with the existing technology, a robot is used to grab the workpiece fixture and place it on a fixed punching mechanism to punch the body mounting holes. When subsequent production of other products is replaced, only the robot connection fixture for positioning the workpiece needs to be replaced, which is a simple and fast switch, thereby improving equipment utilization efficiency, product economy and market competitiveness.

Description

A rear subframe punching robot workstation

Technical field

The utility model relates to the technical field of automobile chassis manufacturing, specifically a rear subframe punching robot workstation.

Background technique

Previously, the punching equipment for the mounting holes of the rear subframe body was a special machine. Each equipment can only process one product. When the product life cycle is over, the punching equipment cannot be used directly. The transformation cost is not much different from that of new equipment, which is economical. It has poor performance and can only be applied to the production of large quantities of single-variety rear subframe products. At this stage, the vehicle model replacement cycle is shortened, and there are many types of small-volume vehicle models. In order to meet market demand, it is necessary to design a flexible robot punching workstation.

Contents of the invention

In order to overcome the shortcomings of the existing technology, the utility model provides a rear subframe punching robot workstation.

In order to achieve the above purpose, a rear subframe punching robot workstation is designed, which is characterized by: including a transport platform, a workpiece fixture, a robot and a punching clamp mechanism. The transport platform includes a base, a slide table and a slide cylinder. The slide table Slidingly installed on the base, the lower part of the sliding table is connected to the sliding table cylinder, and a supporting positioning device is provided above the sliding table. The workpiece fixture includes a clamping frame and a clamping piece fixed below the clamping frame. One side of the clamping frame is connected to the robot. Fixed connection.

The punching tong mechanism includes a punching tong table and a punching tong body. The punching tong body is installed above the punching tong table. Hydraulic cylinders are provided on both sides of the punching tong body. The hydraulic cylinders are connected to the rear end of the punch, and the bottom of the punch is connected to the punching tong body. Sliding connection, the front end of the punch is equipped with a punch, and the punch body is provided with a concave mold in the middle, and the position of the punch matches the concave mold.

The upper part of the punching vise table is slidingly connected to the punching vise body. A connecting block is fixed below the punching vise body. Both sides of the connecting block are connected to the piston rods of the floating cylinder. The floating cylinder is fixedly connected to the punching vise table.

The support and positioning device above the slide table includes a support block and a rough positioning pin. The support block supports the end surface of the bushing sleeve of the rear subframe, and the coarse positioning pin cooperates with the inner hole of the bushing sleeve for positioning.

A clamping cylinder is installed above the slide table.

The clamping part of the workpiece fixture is a corner cylinder, which is installed at the four corners of the fixture frame. The corner cylinder is connected to the pressure head, and a fixture positioning pin or fixture positioning block is provided at the relative position of the pressing point of the pressure head.

Two proximity switches are provided on the side of the angle cylinder, and the two proximity switches correspond to the loosening and tightening positions of the pressure head respectively.

Compared with the existing technology, the utility model adopts a robot to grab the workpiece fixture and place it on a fixed punching mechanism to punch the vehicle body mounting hole. When subsequent production of other products is replaced, only the robot connection fixture for positioning the workpiece needs to be replaced, which is a simple and fast switch, thereby improving equipment utilization efficiency, product economy and market competitiveness.

Description of the drawings

Figure 1 is a schematic diagram of the utility model.

Figure 2 is a schematic diagram of the conveyor table.

Figure 3 is a schematic diagram of the workpiece fixture.

Figure 4 is a schematic diagram of the punching clamp mechanism.

Figure 5 is a schematic diagram of the rear subframe clamping.

See Figures 1 to 5, where 1 is the conveyor table, 1-1 is the base, 1-2 is the slide table, 1-3 is the slide cylinder, 1-4 is the support block, 1-5 is the rough positioning pin, 1-6 is the clamping cylinder, 2 is the workpiece fixture, 2-1 is the fixture frame, 2-2 is the fixture flange, 2-3 is the fixture positioning pin, 2-4 is the fixture positioning block, 2-5 is the corner cylinder , 2-6 is the pressure head, 2-7 is the proximity switch, 3 is the robot, 4 is the punching mechanism, 4-1 is the punching table, 4-2 is the punching body, 4-3 is the hydraulic cylinder, 4- 4 is the punch, 4-5 is the die, 4-6 is the punch, 4-7 is the connecting block, 4-8 is the floating cylinder, and 5 is the rear subframe.

Implementation

The utility model will be further described below based on the accompanying drawings.

As shown in Figures 1 to 5, it includes a transport platform 1, a workpiece fixture 2, a robot 3 and a punching mechanism 4. The transport platform 1 includes a base 1-1, a slide 1-2 and a slide cylinder 1-3. The slide table 1-2 is slidably installed on the base 1-1. The bottom of the slide table 1-2 is connected to the slide cylinder 1-3. A support positioning device is provided above the slide table 1-2. The workpiece fixture 2 includes a fixture frame. 2-1 and the clamping piece fixed below the clamp frame 2-1, one side of the clamp frame 2-1 is fixedly connected to the robot 3. The rear subframe 5 is placed on the support positioning device of the slide table 1-2 for rough positioning. The slide cylinder 1-3 moves the rear subframe to the grabbing station, and the robot 3 moves the workpiece fixture 2 to grab the rear subframe. 5. Then move the rear subframe 5 to the punching clamp mechanism for punching.

The punching tong mechanism 4 includes a punching tong base 4-1 and a punching tong body 4-2. The punching tong body 4-2 is installed above the punching tong base 4-1. Hydraulic cylinders 4 are provided on both sides of the punching tong body 4-2. -3. The hydraulic cylinder 4-3 is connected to the rear end of the punch 4-4. The lower part of the punch 4-4 is slidingly connected to the punch body 4-2. The front end of the punch 4-4 is equipped with a punch 4-6 and a punch 4-6. A concave mold 4-5 is provided in the middle of the body 4-2, and the position of the punch 4-6 matches the concave mold 4-5. When punching, place the surface to be punched between the punch 4-4 and the die 4-5, the hydraulic cylinder 4-3 pushes the punch 4-4 to move, and the punch is aligned with the die 4-5 to punch.

The upper part of the punching vise table 4-1 is slidingly connected to the punching vise body 4-2. A connecting block 4-7 is fixed below the punching vise body 4-2. Both sides of the connecting block 4-7 are connected to the floating cylinder 4-8. The piston rod is connected, and the floating cylinder 4-8 is fixedly connected to the punching vise table 4-1. The floating cylinder 4-8 allows the punching plier body 4-2 to move and adjust its position, so that the die 4-5 can be pressed against the plane of the rear subframe 5 that needs to be punched during punching to prevent the flat surface from curling and deforming during punching.

The support positioning device above the slide table 1-2 includes a support block 1-4 and a rough positioning pin 1-5. The support block supports the end face of the bushing sleeve of the rear subframe 5, and the coarse positioning pin 1-5 is connected with the bushing sleeve. The inner hole of the tube fits the positioning. It is used for rough positioning of the rear subframe 5 on the sliding table, so that the clamp positioning pins 2-3 can be aligned with the reference holes of the rear subframe 5 when the workpiece fixture 2 is clamped.

A clamping cylinder 1-6 is installed above the slide table 1-2. The clamping cylinders 1-6 play an auxiliary supporting role after the workpiece clamp 2 moves to the rear subframe 5, so that the corner cylinder 2-5 can clamp the rear subframe.

The clamping parts of the workpiece fixture 2 are corner cylinders 2-5. The corner cylinders 2-5 are arranged at the four corners of the fixture frame 2-1. The corner cylinders 2-5 are connected to the pressure head 2-6. A clamp positioning pin 2-3 or a clamp positioning block 2-4 is provided at the relative position of the pressing point. The angle cylinder 2-5 enables the pressure head 2-6 to rotate and compress along a fixed trajectory. The general rotation angle is 90°. The workpiece fixture 2 moves downward to the top of the rear subframe 5 and the pressure head 2-6 is always deflected to the outside. It will interfere with the rear subframe 5. When clamping, rotate to the bottom of the clamp positioning pin 2-3 or the clamp positioning block 2-4 to compress the workpiece. The clamping force of the hydraulic cylinder is relatively large and can maintain the stability of the rear subframe 5 during punching. The clamp positioning pins 2-3 and the clamp positioning blocks 2-4 cooperate with the reference holes and reference surfaces of the rear subframe 5 to ensure the accuracy of clamping and thus the accuracy of punching.

Two proximity switches 2-7 are provided on the side of the angle cylinder 2-5, and the two proximity switches 2-7 respectively correspond to the loosening and tightening positions of the pressure head 2-6. Used to detect whether the release and compression of pressure heads 2-6 are in place normally.

A clamp flange 2-2 is fixedly provided on one side of the clamp frame 2-1, and the clamp frame 2-1 is fixedly connected to the robot 3 through the clamp flange 2-2. The workpiece clamp 2 can be replaced by loosening the connecting bolts of the clamp flange 2-2, which facilitates model change.

When the utility model is used, the rear subframe 5 is placed on the sliding table 1-2 manually or by a robot. The support blocks 1-4 support the end face of the bushing sleeve of the rear subframe 5. The rough positioning pins 1-5 are used The entire set of casing is roughly positioned, and then the slide cylinder 1-3 works to drive the slide 1-2 to the grabbing station. The workpiece fixture 2 is fixedly connected to the robot 3 through the fixture flange 2-2. The robot 3 moves the workpiece fixture 2 above the rear subframe 5, and the fixture positioning pin 2-3 extends downward into the reference hole of the rear subframe 5. , the clamping cylinder 1-6 supports the rear subframe 5 upward against the clamp positioning pin 2-3 and the clamp positioning block 2-4, and then the angle cylinder 2-5 drives the pressure head 2-6 to rotate upward to clamp the rear subframe 5.

After the proximity switch 2-7 detects that the pressure head 2-6 is in place, the robot 5 drives the rear subframe 5 to move through the workpiece fixture 2, aligns the punching position with the punch 4-6, and the floating cylinder 4-8 drives the punch. The clamp 4-1 moves to make the die 4-5 lean against the side plane that needs to be punched. The hydraulic cylinder 4-3 pushes the punch 4-4, and the punch 4-6 on the punch 4-4 presses into the die. 4-5 Complete the punching on one side. Then the floating cylinder 4-8 makes the die 4-5 lean against the plane on the other side that needs to be punched to complete the punching on the other side. The robot 3 continues to drive the rear subframe 5 to move and complete the punching at all required positions. According to the shape, position and size of the punching holes, multiple sets of punching clamp mechanisms 4 can be provided.

Claims (8)

1. A rear subframe punching robot workstation, characterized by: including a conveyor table (1), a workpiece fixture (2), a robot (3) and a punching clamp mechanism (4). The conveyor table (1) includes Base (1-1), slide table (1-2) and slide cylinder (1-3). The slide table (1-2) is slidably installed on the base (1-1). The slide table (1-2) The lower part is connected to the slide cylinder (1-3), and a support positioning device is provided above the slide (1-2). The workpiece fixture (2) includes a fixture frame (2-1) and a device fixed on the fixture frame (2-1). ), one side of the clamp frame (2-1) is fixedly connected to the robot (3). 2. A rear subframe punching robot workstation according to claim 1, characterized in that: the punching clamp mechanism (4) includes a punching clamp table (4-1) and a punching clamp body (4-2) , the punching tong body (4-2) is installed above the punching tong table (4-1). Hydraulic cylinders (4-3) are provided on both sides of the punching tong body (4-2). The hydraulic cylinders (4-3) are connected to the convex The rear end of the die (4-4) is connected, the lower part of the punch (4-4) is slidingly connected to the punch body (4-2), the front end of the punch (4-4) is provided with a punch (4-6), and the punch A concave mold (4-5) is provided in the middle of the body (4-2), and the position of the punch (4-6) matches the concave mold (4-5). 3. A rear subframe punching robot workstation according to claim 2, characterized in that: the top of the punching clamp table (4-1) is slidingly connected to the punching clamp body (4-2), and the punching clamp A connecting block (4-7) is fixed below the body (4-2). Both sides of the connecting block (4-7) are connected to the piston rods of the floating cylinder (4-8). The floating cylinder (4-8) is connected to the punch clamp. Station (4-1) is fixedly connected. 4. A rear subframe punching robot workstation according to claim 1, characterized in that: the support positioning device above the slide table (1-2) includes a support block (1-4) and a rough positioning pin (1-5), the support block supports the end surface of the bushing sleeve of the rear subframe (5), and the rough positioning pin (1-5) cooperates with the inner hole of the bushing sleeve for positioning. 5. A rear subframe punching robot workstation according to claim 1, characterized in that: a clamping cylinder (1-6) is installed above the slide table (1-2). 6. A rear subframe punching robot workstation according to claim 1, characterized in that: the clamping part of the workpiece fixture (2) is a corner oil cylinder (2-5), and the corner oil cylinder (2-5 ) is set at the four corners of the clamp frame (2-1). The corner cylinder (2-5) is connected to the pressure head (2-6). The relative position of the pressing point of the pressure head (2-6) is provided with a clamp positioning pin ( 2-3) or clamp positioning block (2-4). 7. A rear subframe punching robot workstation according to claim 6, characterized in that: two proximity switches (2-7) are provided on the side of the corner cylinder (2-5), and two proximity switches (2-7) are provided on the side of the corner cylinder (2-5). The switches (2-7) respectively correspond to the loosening and tightening positions of the pressure head (2-6). 8. A rear subframe punching robot workstation according to claim 1, characterized in that: a clamp flange (2-2) is fixedly provided on one side of the clamp frame (2-1), and the clamp frame (2-1) is fixedly connected to the robot (3) through the clamp flange (2-2).