Automatic stamping equipment and stamping method for stainless steel pipe fittings

Abstract

The invention relates to stainless steel pipe fitting stamping, in particular to stainless steel pipe fitting automatic stamping equipment and a stamping method. The equipment comprises a U-shaped base, a first punching head arranged over the U-shaped base, a second electric telescopic cylinder driving the first punching head to ascend and descend, a first supporting table arranged on the left side of the U-shaped base, a second punching head arranged over the first supporting table and a fourth electric telescopic cylinder driving the second punching head to ascend and descend. During operation, a steel pipe is fixed in the U-shaped seat; the first punching head descends to punch a square opening in the top of the steel pipe; the steel pipe is rotated by 90 degrees, and the square opening is arranged under the second punching head; the second punching head descends to punch a right-angle notch communicated with the square opening in the top of the steel pipe, the right-angle notch is centered in the square opening, and the right-angle tip of the right-angle notch coincides with the edge of the square opening. Compared with two devices arranged side by side, the mode does not need to be drawn out from one device, so that the steel pipe notch machining continuity is improved.

Description

Technical Field

[0001] The invention relates to stainless steel pipe fitting stamping, and more particularly to an automatic stainless steel pipe fitting stamping device and a stamping method. Background Art

[0002] The stamping process can directly act on the stainless steel pipe fittings through the punch head to achieve rapid changes in shape and size. This method can reduce material waste, improve material utilization, greatly improve production efficiency, and shorten production cycle. On the other hand, the stamping process has strong adaptability and can stamp out specific shapes according to product customization needs, which makes stamping processing have significant advantages in meeting diversified market needs.

[0003] In traditional stamping operations, two stamping machines are usually set up side by side. When the stainless steel pipe is stamped on one machine, it is removed from the machine and placed on another stamping machine for stamping again. Since the stainless steel pipe is long and heavy, this processing method has poor continuity. Summary of the invention

[0004] The invention provides an automatic stamping device and a stamping method for stainless steel pipe fittings, which have the beneficial effect of improving the continuity of steel pipe cutting processing.

[0005] The above purpose is achieved through the following technical solutions:

[0006] A stainless steel pipe automatic stamping equipment includes a concave-shaped seat, a first stamping head arranged directly above the concave-shaped seat, a second electric telescopic cylinder driving the first stamping head to rise and fall, a first support platform arranged on the left side of the concave-shaped seat, a second stamping head arranged directly above the first support platform, and a fourth electric telescopic cylinder driving the second stamping head to rise and fall.

[0007] The second electric telescopic cylinder and the fourth electric telescopic cylinder are both fixedly connected to the frame, the telescopic ends of the second electric telescopic cylinder and the fourth electric telescopic cylinder are arranged downward, the telescopic end of the second electric telescopic cylinder is fixedly connected to the upper end of the first punching head, the telescopic end of the fourth electric telescopic cylinder is fixedly connected to the upper end of the second punching head, and the frame is arranged on the front side of the concave seat and the first support platform.

[0008] A square blade is arranged at the bottom of the first punching head for punching a square opening on the pipe fitting.

[0009] A right-angled equilateral triangle blade is arranged at the bottom of the second punching head for punching out a right-angled equilateral triangle opening on the pipe fitting.

[0010] The maximum side length of the equilateral triangle is smaller than the length of the long side of the square.

[0011] A first electric telescopic cylinder is fixedly connected to the lower end of the concave-shaped seat, a third electric telescopic cylinder is fixedly connected to the lower end of the first support platform, a second support platform is arranged on the right side of the concave-shaped seat, a fifth electric telescopic cylinder is fixedly connected to the lower end of the second support platform, and a support roller is arranged on the left side of the first support platform. The support roller is driven by a driving mechanism to realize self-rotation and lifting.

[0012] The driving mechanism comprises a sixth electric telescopic cylinder, a first motor is fixedly connected to the telescopic end of the sixth electric telescopic cylinder, and an output shaft of the first motor is fixedly connected to the supporting roller.

[0013] A second motor is arranged on the left side of the supporting roller, a first clamping plate is fixedly connected to the output shaft of the second motor, two limit columns are fixedly connected to the first clamping plate, a limit block is fixedly connected to the upper end of the limit column, a second clamping plate is slidably connected to the two limit columns, and a spring is arranged between the limit block and the second clamping plate.

[0014] An automatic stamping equipment for stainless steel pipe fittings comprises the following steps:

[0015] Step 1: Fix the steel pipe in the concave seat;

[0016] Step 2: The first punch head descends to punch out a square opening on the top of the steel pipe;

[0017] Step 3: Rotate the steel pipe 90° and place the square mouth directly below the second punch head;

[0018] Step 4: The second punch head descends to punch out a right-angle cut on the top of the steel pipe that is connected to the square opening. The right-angle cut is centered in the square opening, and the right-angle tip of the right-angle cut coincides with the edge of the square opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the front view of the automatic stamping equipment for stainless steel pipe fittings;

[0020] Figure 2 This is a top view of the automated stamping equipment for stainless steel pipe fittings;

[0021] Figure 3 This is the side view of the automated stamping equipment for stainless steel pipe fittings;

[0022] Figure 4 It is a schematic diagram when the square opening is located directly below the second punch head;

[0023] Figure 5 It is a structural schematic diagram of a concave-shaped seat;

[0024] Figure 6 is a schematic structural diagram of the first punching head;

[0025] Figure 7 is a schematic structural diagram of the second punch head;

[0026] Figure 8 It is a structural schematic diagram of the square mouth;

[0027] Fig. 9 It is a schematic diagram of a right-angle cut in a square mouth.

[0028] In the figure: a concave-shaped seat 1, a first electric telescopic cylinder 2, a first punch head 3, a second electric telescopic cylinder 4, a first support platform 5, a third electric telescopic cylinder 6, a second punch head 7, a fourth electric telescopic cylinder 8, a second support platform 9, a fifth electric telescopic cylinder 10, a support roller 11, a drive mechanism 12, a second motor 13, a first clamping plate 14, a limit column 15, a limit block 16, a second clamping plate 17, a steel pipe 1-1, a square opening 1-2, and a right-angle incision 1-3. DETAILED DESCRIPTION

[0029] An automated stamping equipment for stainless steel pipe fittings, such as Figures 1 to 7 , including an upper opening concave-shaped seat 1, and a first punch head 3 arranged just above the concave-shaped seat 1, the bottom of the first punch head 3 is provided with a square blade, which is used to form a square opening 1-2 on the top wall of the square steel pipe 1-1 when the first punch head 3 descends. The first punch head 3 is driven by a second electric telescopic cylinder 4 to achieve lifting and lowering, the telescopic end of the second electric telescopic cylinder 4 is arranged downward, the first punch head 3 is fixedly connected to the bottom of the telescopic end of the second electric telescopic cylinder 4, the top of the second electric telescopic cylinder 4 is fixedly connected to a support frame, the support frame is fixedly connected to the ground and is located at the front side of the concave-shaped seat 1.

[0030] Further explanation, combined with Figure 8 and 9A first support platform 5 is provided on the left side of the concave seat 1. The initial height of the upper end surface of the first support platform 5 is parallel to the bottom of the upper end surface of the concave seat 1, so that the steel pipe 1-1 can be horizontal in the concave seat 1 and on the first support platform 5. The top and bottom planes of the steel pipe 1-1 in the initial position are both rectangular, and the long sides extend in the left and right directions, and the wide sides are in the backward direction. The steel pipe 1-1 can be just inserted into the concave seat 1 to obtain the restriction of the freedom below, in front and behind. A second punch head 7 is provided directly above the first support platform 5, and a right-angled equilateral triangle blade is provided at the bottom of the second punch head 7, which is used to punch out a right-angled equilateral triangle opening on the pipe fitting. After the square opening 1-2 is formed, the steel pipe 1-1 is moved to the left so that the square opening 1-2 of the steel pipe 1-1 is located below the second punch head 7. The steel pipe 1-1 is rotated 90° clockwise so that the square opening 1-2 faces the rear side. In this way, after the second punch head 7 descends, the thin wall at the top and the thin wall at the bottom of the steel pipe 1-1 can be punched to form a right-angle cut 1-3. The right-angle cut 1-3 is located in the square opening 1-2. At this time, the right angle of the right-angle cut 1-3, which is an equilateral triangle, faces forward. This processing method allows each punching operation to punch a thin sheet. In addition, the steel pipe 1-1 with the right-angle cut 1-3 of the equilateral triangle can be bent to close the right angle of the right-angle cut 1-3, which is convenient for forming a right-angle piece. Among them, the second punching head 7 is fixedly connected to the bottom of the fourth electric telescopic cylinder 8 with the telescopic end facing downward, and the bottom of the fourth electric telescopic cylinder 8 is fixedly connected to the support frame, and the support frame is fixedly connected to the ground. The support frame is located on the front side of the first support platform 5.

[0031] Further explanation, the concave-shaped seat 1 is fixedly connected to the top of the first electric telescopic cylinder 2 with the telescopic end facing upward, the first support platform 5 is fixedly connected to the third electric telescopic cylinder 6 with the telescopic end facing upward, the second support platform 9 is arranged on the right side of the concave-shaped seat 1, the second support platform 9 is fixedly connected to the top of the fifth electric telescopic cylinder 10 with the telescopic end facing upward, and the support roller 11 is arranged on the left side of the first support platform 5, and the support roller 11 is driven by the driving mechanism 12 to realize self-rotation and lifting. Among them, the driving mechanism 12 includes a sixth electric telescopic cylinder, and the telescopic end of the sixth electric telescopic cylinder is fixedly connected to the first motor, the output shaft of the first motor is fixedly connected to the support roller 11, and the output shaft of the first motor is arranged coaxially with the support roller 11, and the axis is distributed in the front and rear direction. Among them, the concave-shaped seat 1, the first support platform 5, the support roller 11 and the second support platform 9 can all be lifted and lowered, which is achieved by driving the corresponding telescopic cylinders. When the square mouth 1-2 is formed, the concave-shaped seat 1 can be lowered and separated from the steel pipe 1-1, and then the steel pipe 1-1 can be rotated.

[0032] To further illustrate, a second motor 13 with an output shaft facing right is disposed on the left side of the support roller 11, and a first clamping plate 14 is fixedly connected to the output shaft of the second motor 13, for example Figure 1The initial position of the first clamping plate 14 is in a vertical state. The front end of the first clamping plate 14 is fixedly connected to two limit columns 15 extending forward. The front end of the limit column 15 is fixedly connected to a limit block 16. It also includes a second clamping plate 17 slidably connected to the two limit columns 15, and a spring fixedly connected between the limit block 16 and the second clamping plate 17. The spring is sleeved on the limit column 15, so that the first clamping plate 14 and the second clamping plate 17 can play a limited clamping role to clamp the steel pipe 1-1, and the steel pipe 1-1 can move when subjected to external force in the clamping state of the first clamping plate 14 and the second clamping plate 17. This is achieved by smoothing the contact surface, which can be achieved by polishing the metal material. Figure 4 As shown, the support roller 11 is rotated counterclockwise to drive the steel pipe 1-1 to move to the left, so that the square opening 1-2 is located directly below the second punch head 7. And the output shaft of the second motor 13 rotates 90°, so that the first clamping plate 14 and the second clamping plate 17 clamp the steel pipe 1-1 and rotate 90° clockwise, so that the square opening 1-2 faces backward. At this time, the steel pipe 1-1 is suspended relative to the first clamping plate 14, the spring is further compressed, and the distance between the second clamping plate 17 and the first clamping plate 14 increases. The steel pipe 1-1 is also suspended relative to the lowered concave seat 1 and is placed flat on the first support platform 5, the second support platform 9 and the support roller 11. Of course, the concave seat 1 can also be raised and re-supported on the steel pipe 1-1.

[0033] Further explanation, after the square opening 1-2 is formed and the concave seat 1 is lowered, the second support platform 9 can be raised, and the steel pipe 1-1 is lower on the left and higher on the right, and the stamped sheet slides to the left. Since the steel pipe 1-1 is clamped at this time, the downward force caused by the weight of the steel pipe 1-1 is smaller than the static friction caused by the clamping, so the steel pipe 1-1 will not slide.

Claims

1. An automatic stamping equipment for stainless steel pipe fittings, characterized in that: The invention comprises a concave-shaped seat (1), a first punch head (3) arranged directly above the concave-shaped seat (1), a second electric telescopic cylinder (4) for driving the first punch head (3) to rise and fall, a first support platform (5) arranged on the left side of the concave-shaped seat (1), a second punch head (7) arranged directly above the first support platform (5), and a fourth electric telescopic cylinder (8) for driving the second punch head (7) to rise and fall.

2. The automatic stainless steel pipe punching equipment according to claim 1 is characterized in that: The opening of the concave-shaped seat (1) is arranged upward.

3. The automatic stainless steel pipe punching equipment according to claim 1 is characterized in that: The second electric telescopic cylinder (4) and the fourth electric telescopic cylinder (8) are both fixedly connected to the frame, the telescopic ends of the second electric telescopic cylinder (4) and the fourth electric telescopic cylinder (8) are arranged downward, the telescopic end of the second electric telescopic cylinder (4) is fixedly connected to the upper end of the first punching head (3), and the telescopic end of the fourth electric telescopic cylinder (8) is fixedly connected to the upper end of the second punching head (7), and the frame is arranged on the front side of the concave-shaped seat (1) and the first support platform (5).

4. The automatic stamping equipment for stainless steel pipe fittings according to claim 1 is characterized in that: The bottom of the first punching head (3) is provided with a square blade for punching a square opening on the pipe fitting.

5. The automatic stamping equipment for stainless steel pipe fittings according to claim 4 is characterized in that: The bottom of the second punch head (7) is provided with a right-angled equilateral triangle blade for punching out a right-angled equilateral triangle opening on the pipe fitting.

6. The automatic stamping equipment for stainless steel pipe fittings according to claim 5 is characterized in that: The maximum side length of the equilateral triangle is smaller than the length of the long side of the square.

7. The automatic stamping equipment for stainless steel pipe fittings according to claim 6 is characterized in that: The lower end of the concave-shaped seat (1) is fixedly connected to a first electric telescopic cylinder (2), the lower end of the first support platform (5) is fixedly connected to a third electric telescopic cylinder (6), a second support platform (9) is arranged on the right side of the concave-shaped seat (1), a fifth electric telescopic cylinder (10) is fixedly connected to the lower end of the second support platform (9), and a support roller (11) is arranged on the left side of the first support platform (5), and the support roller (11) is driven by a driving mechanism (12) to realize self-rotation and lifting.

8. The automatic stamping equipment for stainless steel pipe fittings according to claim 7 is characterized in that: The driving mechanism (12) comprises a sixth electric telescopic cylinder, a first motor is fixedly connected to the telescopic end of the sixth electric telescopic cylinder, and an output shaft of the first motor is fixedly connected to the supporting roller (11).

9. The automatic stainless steel pipe punching equipment according to claim 7 is characterized in that: A second motor (13) is arranged on the left side of the support roller (11); a first clamping plate (14) is fixedly connected to the output shaft of the second motor (13); two limit columns (15) are fixedly connected to the first clamping plate (14); the upper end of the limit column (15) is fixedly connected to a limit block (16); a second clamping plate (17) is slidably connected to the two limit columns (15); and a spring is arranged between the limit block (16) and the second clamping plate (17).

10. An automated stamping equipment for stainless steel pipe fittings, characterized in that: The following steps are involved: Step 1: The steel pipe (1-1) is fixed inside the concave seat (1); Step 2: The first punching head (3) is lowered to punch out a square opening (1-2) at the top of the steel pipe (1-1); Step 3: Rotate the steel pipe (1-1) by 90° and place the square opening (1-2) directly below the second punch head (7); Step 4: The second punch head (7) is lowered to punch out a right-angle cut (1-3) on the top of the steel pipe (1-1) that is connected to the square opening (1-2).

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