Rotary stamping die for pipe fittings

Abstract

The utility model relates to the technical field of die stamping, in particular to a rotary stamping die for pipe fittings, which can finish two times of stamping through one-time clamping, improve machining precision and efficiency and reduce cost and comprises an upper die holder and a lower die holder, guide columns are mounted on two sides of the lower die holder, guide sleeves matched with the guide columns are arranged on the upper die holder, and the guide sleeves are sleeved on the guide columns. The upper die base is connected with a stamping driving mechanism, a V-shaped supporting block is fixed to the middle of the top of the lower die base, a female die base is installed behind the V-shaped supporting block, a female die located in a V-shaped groove of the V-shaped supporting block is installed at the front end of the female die base, a male die matched with the female die is installed on a base of the upper die base, and the upper die base is connected with the lower die base. Two rotatable positioning blocks in different directions are installed on the lower die base, and when the pipe fitting rotates to different machining positions, the corresponding positioning blocks are clamped into clamping grooves in the ends of the pipe fitting to achieve positioning.

Description

Technical Field

[0001] The utility model relates to the technical field of die stamping, in particular to a pipe fitting rotary stamping die. Background Art

[0002] Conventional die stamping is completed in a single pass or by using multiple sets of dies for secondary clamping. For a particular pipe fitting, stamping is required at two different locations. Multiple die sets are required for multiple passes, and part deformation after the first pass makes clamping the second die difficult, affecting precision. Furthermore, the design and processing costs of two sets of dies are high. Summary of the Invention

[0003] In order to solve the above technical problems, the utility model provides a pipe rotating stamping die, which can complete two stampings in one clamping, improve processing accuracy and efficiency, and reduce costs.

[0004] The technical solution is as follows: a pipe rotating stamping die, which includes an upper die base and a lower die base, guide pillars are installed on both sides of the lower die base, and a guide sleeve that cooperates with the guide pillars is provided on the upper die base. The upper die base is connected to the stamping drive mechanism, and is characterized in that a V-shaped support block is fixed in the middle of the top of the lower die base, a die base is installed behind the V-shaped support block, the front end of the die base is installed with a die located in the V-shaped groove of the V-shaped support block, the base of the upper die base is installed with a punch that cooperates with the die, and two rotatable positioning blocks with different directions are installed on the lower die base. When the pipe fitting is rotated to different processing positions, the corresponding positioning block is clamped into the groove at the end of the pipe fitting to achieve positioning.

[0005] It is further characterized in that a connecting plate is mounted on the lower die base by screws, and the positioning block is mounted on the end of the connecting plate;

[0006] The end of the connecting plate is provided with a vertical mounting groove and an oblique mounting groove, one end of the positioning block is connected to the vertical mounting groove and the oblique mounting groove through a pin shaft, and the other end of the positioning block is provided with a shift rod;

[0007] A positioning ring is provided at one end of the die close to the die seat.

[0008] After adopting the utility model, the pipe fitting to be processed is put on the die along the V-shaped groove of the V-shaped support block. After the pipe fitting is rotated to the processing position, the corresponding positioning block is clamped into the clamping groove of the end portion for positioning. The upper die seat is moved downward with the punch to complete the punching. There is no need to repeatedly assemble and disassemble the pipe fitting, and only rotation is required. Two stamping operations are completed with one clamping, which improves processing accuracy and efficiency and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1This is the main view of the structure of the utility model (without the guide column);

[0010] Figure 2 The right side view of the lower die base and upper die base (without the connecting plate);

[0011] Figure 3 This is the right side view of the connecting plate. DETAILED DESCRIPTION

[0012] See Figure 1 , Figure 2 , Figure 3 As shown, a pipe rotating stamping die comprises an upper die base 1 and a lower die base 2, guide pillars 3 are installed on both sides of the lower die base 2, and a guide sleeve 4 cooperating with the guide pillars 3 is provided on the upper die base 1. The upper die base 1 is connected to the stamping drive mechanism (not shown in the figure, it can be driven by a cylinder), a V-shaped support block 5 is fixed in the top middle of the lower die base 2, a die base 6 is installed behind the V-shaped support block 5, a die base 6 is installed at the front end of the die base 6 with a die 7 located in the V-shaped groove of the V-shaped support block 5, and a positioning ring 8 is provided at one end of the die 7 close to the die base 6, a punch 9 cooperating with the die 7 is installed at the base of the upper die base 1, and a connecting plate 10 is installed on the lower die base 2 by screws, and two rotatable positioning blocks 11 with different directions are installed on the end of the connecting plate 10. When the pipe 12 rotates to different processing positions, the corresponding positioning block 11 is clamped into the clamping groove at the end of the pipe 12 to achieve positioning. The installation method of the positioning block 11 is as follows: a vertical mounting groove 13 and an oblique mounting groove 14 are provided at the end of the connecting plate 10, and one end of the positioning block 11 is connected to the vertical mounting groove 13 and the oblique mounting groove 14 through a pin shaft 15. The intersection A of the center lines of the vertical mounting groove 13 and the oblique mounting groove 14 is consistent with the center of the pipe fitting 12, ensuring that the positioning block 11 can be smoothly inserted. A shift rod 16 is installed at the other end of the positioning block 11, and the positioning block 11 can be rotated around the pin shaft 15 through the shift rod 16.

[0013] When stamping is required, the pipe fitting 12 is put on the die 7 along the V-shaped groove of the V-shaped support block 5. The pipe fitting 12 is supported by the V-shaped support block 5 until the pipe fitting 7 stops after resting against the positioning ring 8. Then the pipe fitting 12 is rotated to the processing position, and one of the positioning blocks 11 is rotated upward so that it is stuck in the groove at the end of the pipe fitting 12 to achieve positioning. At this time, the upper die base 1 can be started to press down, and the punch 9 is used to cooperate with the die 7 to complete the stamping. Then the upper die base 1 is lifted and reset, and then the pipe fitting 12 is rotated to the second processing position, and then the other positioning block 11 is rotated upward so that it is stuck in the groove at the end of the pipe fitting 12 to achieve positioning, and stamping is performed again. After stamping is completed, the pipe fitting 12 can be removed, and the waste punched out of the die 7 is taken out, and preparations are made for stamping the next pipe fitting.

Claims

1. A rotary stamping die for pipe fittings, comprising an upper die base and a lower die base, wherein guide pillars are installed on both sides of the lower die base, a guide sleeve is provided on the upper die base to cooperate with the guide pillars, and the upper die base is connected to a stamping drive mechanism, characterized in that: A V-shaped support block is fixed in the middle of the top of the lower die base, a die base is installed behind the V-shaped support block, a die base is installed at the front end of the die base is installed with a die located in the V-shaped groove of the V-shaped support block, the base of the upper die base is installed with a punch that cooperates with the die, and two rotatable positioning blocks with different directions are installed on the lower die base. When the pipe fitting is rotated to different processing positions, the corresponding positioning block is clamped into the groove at the end of the pipe fitting to achieve positioning.

2. A rotating stamping die for pipe fittings according to claim 1, characterized in that: A connecting plate is mounted on the lower die base via screws, and the positioning block is mounted on the end of the connecting plate.

3. A rotating stamping die for pipe fittings according to claim 2, characterized in that: The end of the connecting plate is provided with a vertical mounting groove and an oblique mounting groove, one end of the positioning block is connected to the vertical mounting groove and the oblique mounting groove through a pin shaft, and the other end of the positioning block is provided with a shift rod.

4. A rotating stamping die for pipe fittings according to claim 1, characterized in that: A positioning ring is provided at one end of the die close to the die seat.

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