A slotting die device

Abstract

The utility model discloses a slotting die device, belonging to the technical field of stamping processing equipment; it comprises an upper template, a punch, an upper template, a die, a die seat, a guide assembly, an angle positioning piece, etc.; by setting the upper template and the lower template to be guided by the guide assembly, the punch can be directly opposite to the stamping slot, and the stamping position is accurate; the punch and the die are used in combination to stamp out small grooves on the surface of a seamless steel pipe; by adjusting the position of a thin-walled seamless welded pipe relative to the die, four small grooves can be stamped out on the surface of the seamless steel pipe, and standardized seamless steel pipes can be produced, which is convenient to use; by setting the angle positioning piece, the angle between adjacent small grooves of the thin-walled seamless welded pipe can be accurately determined to be 90 degrees; by setting a spring, it can be kept automatically against the thin-walled seamless welded pipe, thereby keeping the thin-walled seamless welded pipe immovable, and further improving the stamping accuracy.

Description

Technical Field

[0001] The utility model relates to slotting die equipment, belonging to the technical field of stamping processing equipment. Background Art

[0002] The thin-walled seamless welded pipe used in the exhaust system of the generator set needs to be processed with four 4*35 small grooves, and the four small grooves need to be distributed at equal angles along the outer circumference of the welded pipe. Since the consumption of thin-walled seamless welded pipes is large and the size of the grooves on them is standardized, standardized production can be achieved through stamping equipment. However, since the grooves on the thin-walled seamless welded pipe are distributed at four equal angles and their positions are special, the existing slotting die equipment cannot be directly used in the production of thin-walled seamless welded pipes, so it is necessary to design a slotting die equipment for producing such thin-walled seamless welded pipes to produce standardized thin-walled seamless welded pipes. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a slotting die device, which solves the technical problem that the existing slotting die device cannot be directly applied to the production of thin-walled seamless welded pipes.

[0004] The technical problem to be solved by the utility model is achieved by adopting the following technical solutions:

[0005] Solution 1: A slotting die device, comprising: an upper film member and a lower die member;

[0006] The upper mold part comprises: an upper mold plate and a male mold fixedly connected to the upper mold plate;

[0007] The lower die comprises: a concave die for supporting the thin-walled seamless welded pipe, and cooperates with a convex die to punch out a small groove on the outer surface of the thin-walled seamless welded pipe; a stamping groove having the same shape as that of the convex die is formed on the outer peripheral surface of the concave die;

[0008] A lower mold plate and a mold base integrated with the lower mold plate; the concave mold is fixedly mounted on the mold base;

[0009] The guide assembly is used to make the punch face the punching groove.

[0010] By setting the upper and lower templates to be guided by the guide components, the punch can be aligned with the punching groove, and the punching position can be accurate; the punch and the die are used together to punch a small groove on the surface of the seamless steel pipe; by adjusting the position of the thin-walled seamless welded pipe relative to the die, 4 small grooves can be punched on the surface of the seamless steel pipe, thus realizing standardized production of seamless steel pipes, which is easy to use.

[0011] Preferably, the guide assembly comprises a guide column and a guide sleeve, wherein the guide column is fixedly connected to the upper mold plate, the guide sleeve is arranged on the mold base, and the guide sleeve matches the shape of the guide column.

[0012] Preferably, a mounting hole is provided on the mold base; a flange is provided along the outer circumference of the punch to divide the punch into a mounting portion and a supporting portion; the cross-sections of the mounting hole and the mounting portion are both rectangular; the die is located at one end of the mounting portion and is fixedly connected to the connecting plate; when the mounting portion passes through the mounting hole, the connecting plate and the flange abut against the mold base at the same time.

[0013] Solution 2: Based on Solution 1, in order to facilitate the movement of the upper mold, it also includes a mold handle, which is fixedly connected to the upper mold plate.

[0014] Solution 3: Based on Solution 1, in order to accurately determine the angle between adjacent small grooves of the thin-walled seamless welded pipe, an angle positioning piece is also set, specifically:

[0015] Preferably, an angle positioning member is also included, which is used to accurately determine that the angle between adjacent small grooves of the thin-walled seamless welded pipe is 90°; the angle positioning member includes a positioning pin and a vertical plate 14 for supporting the positioning pin; a pin hole is opened on the vertical plate 14, and the positioning pin slides through the pin hole; the punching direction of the punch is the z-axis, and the pin hole is the x-axis direction, and the positioning pin is always along the x-axis direction

[0016] Preferably, a spring is further included, the spring is sleeved on the positioning pin, one end of the spring is fixedly connected to the positioning pin, and the other end of the spring abuts against the vertical plate 14 to achieve the abutment between the positioning pin and the thin-walled seamless welded pipe.

[0017] The beneficial effects of the utility model are:

[0018] (1) By setting the upper and lower templates to be guided by the guide assembly, the punch can be aligned with the punching groove, and the punching position can be accurate; the punch and the die can be used together to punch a small groove on the surface of the seamless steel pipe; by adjusting the position of the thin-walled seamless welded pipe relative to the die, four small grooves can be punched on the surface of the seamless steel pipe, and the standardized production of seamless steel pipes can be achieved, which is easy to use.

[0019] (2) By setting the mold handle, it is easy to move the upper mold.

[0020] (3) By limiting the guide assembly to include a guide column and a guide sleeve, the structure is simple and easy to use.

[0021] (4) By setting the angle positioning piece, the angle between adjacent small grooves of the thin-walled seamless welded pipe can be accurately determined to be 90°. By setting the spring, it can automatically press against the thin-walled seamless welded pipe, thereby keeping the thin-walled seamless welded pipe stationary, further improving the stamping accuracy.

[0022] (5) By providing mounting holes, connecting plates and flanges, the die and the die base can be installed in a detachable manner, making it easy to replace the die. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure enlargement in the middle;

[0025] Figure 3 This is a schematic diagram of the connection structure between the upper mold and the lower mold of the utility model;

[0026] Figure 4 This is the exploded diagram of the lower module;

[0027] Figure 5 This is the exploded diagram of the upper module;

[0028] Figure 6 for Figure 5 A magnified schematic diagram of the structure at B in the middle;

[0029] Figure 7 for Figure 5 Enlarged schematic diagram of the structure at point C in the middle.

[0030] In the figure: 1, punch; 2, upper plate; 3, lower plate; 4, die; 401, mounting portion; 402, supporting portion; 5, flange; 6, stamping groove; 7, lower template; 8, die base; 9, die handle; 10, guide column; 11, guide sleeve; 12, guide groove; 13, positioning pin; 14, vertical plate; 15, pin hole; 16, spring; 17, mounting hole; 18, connecting plate; 19, seamless welded pipe; 20, first hole portion; 21, second hole portion; 22, third hole portion; 23, fourth hole portion. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.

[0032] In the description of the present invention, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "up", "down", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "end", "head" and "tail" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solution of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] This embodiment provides a slotting die device, such as Figure 1 and Figure 2 As shown, including:

[0034] Upper membrane and lower mold;

[0035] The upper mold part includes: an upper mold plate and a punch 1 fixedly connected to the upper mold plate; the upper mold plate is composed of an upper plate 2 and a lower plate 3 fixedly connected by bolts, and the punch 1 is fixedly connected to the lower plate 3;

[0036] The lower module comprises:

[0037] A die 4 is used to support the thin-walled seamless welded pipe 19, and a stamping groove 6 of the same shape as the punch 1 is provided on the outer circumference of the die 4; a flange 5 is provided along the outer circumference of the die 4 to divide the die 4 into a mounting portion 401 and a supporting portion 402, and the supporting portion 402 is a cylindrical shape matching the internal shape of the seamless welded pipe 19; the seamless welded pipe 19 is sleeved on the supporting portion 402 and one end of the seamless welded pipe 19 is against the flange 5 to achieve the installation of the seamless welded pipe 19 in place;

[0038] The outer side of the die 4 is completely fitted with the inner side of the seamless welded pipe 19 to support the thin-walled seamless welded pipe 19; the area of ​​the seamless welded pipe 19 facing the punching groove 6 is the punching groove area; the punch 1 is pressed downward into the punching groove 6 to form a small groove on the surface of the thin-walled seamless welded pipe 19. After the punching is completed, the upper mold and the lower mold are separated to enable the punch 1 to be separated from the punching groove 6; then the seamless welded pipe 19 is rotated 90 degrees; the punch 1 is then aligned with the seamless welded pipe 19 to punch out a second small groove; this operation is repeated four times to form four small grooves with equal angles on the surface of the thin-walled seamless welded pipe 19;

[0039] The lower mold plate 7 and the mold base 8 which is integrated with the lower mold plate 7; the mounting portion 401 of the concave mold 4 is fixedly mounted on the mold base 8 by bolts or welding.

[0040] The guide assembly is used for precise positioning, so that the punch 1 faces the punching groove 6. Each time the punch is pressed, the punch 1 faces the die 4 only by aligning the guide assembly, and then the gravity of the upper die assembly is used to punch the lower die assembly.

[0041] like Figure 5 and Figure 6 As shown, in some embodiments, a mold handle 9 is further included, and a flange 5 is fixedly connected to the bottom end of the mold handle 9 along its outer circumference; a through hole penetrating the upper and lower end surfaces of the upper plate 2 is opened, and the through hole includes a coaxial first hole portion 20 and a second hole portion 21 from top to bottom; the first hole portion 20 matches the mold handle 9, and the second hole portion 21 matches the flange 5;

[0042] The mold handle 9 passes through the first through hole and protrudes from the upper end surface of the upper plate 2 to provide a hand-held end, and the flange 5 passes through the second through hole and the lower end surface of the flange 5 is flush with the lower end surface of the upper plate 2 or the lower end surface of the flange 5 is recessed relative to the lower end surface of the upper plate 2 toward the second hole portion 21;

[0043] The upper plate 2 is fixedly connected to the lower plate 3 by bolts. Since the flange 5 is blocked by the first hole portion 20, the mold handle 9 cannot be pulled out from the through hole of the upper plate 2 to achieve a fixed connection with the upper mold plate. By holding the mold handle 9 protruding from the upper end surface of the upper plate 2, the upper mold can be easily moved.

[0044] like Figure 5 and Figure 7 As shown, in some embodiments, the guide assembly includes a guide column 10 and a guide sleeve 11, and is similar to the connection method between the mold handle 9 and the upper mold plate. The top end of the guide column 10 is fixedly connected with a flange 5 along its outer circumference, and the lower plate 3 is provided with a through hole penetrating its upper and lower end surfaces. The through hole includes a coaxial third hole portion 22 and a fourth hole portion 23 from top to bottom; the third hole portion 22 matches the flange 5, and the second hole portion 21 matches the guide column 10.

[0045] The flange 5 passes through the third through hole and the upper end surface of the flange 5 is flush with the upper end surface of the lower plate 3; the guide column 10 passes through the fourth through hole and the guide column 10 protrudes from the lower end surface of the lower plate 3 to provide a guide end.

[0046] Since the flange 5 is blocked by the fourth hole portion 23, the guide column 10 cannot be pulled out from the through hole of the lower plate 3. Since the upper end surface of the flange 5 is flush with the upper end surface of the lower plate 3, the guide column 10 is stably sandwiched between the upper plate 2 and the lower plate 3, and is stably fixed on the upper template to achieve fixed connection with the lower plate 3.

[0047] The guide sleeve 11 is arranged in the guide groove 12 provided on the die base 8, and the guide sleeve 11 matches the shape of the guide column 10. During the punching operation, the guide column 10 is aligned with the guide groove 12, and when the upper die plate is installed on the lower die plate 7, the punch 1 faces the punching groove 6.

[0048] like Figure 1-Figure 4 As shown, in some embodiments, an angle positioning member is also included; the angle positioning member includes a positioning pin 13 and a vertical plate 14 for supporting the positioning pin 13.

[0049] The vertical plate 14 is fixed on the lower mold plate 7 by bolts. A pin hole 15 is provided on the vertical plate 14. The positioning pin 13 slides through the pin hole 15. The pressing direction of the punch 1 is the z-axis, and the pin hole 15 is the x-axis direction. The positioning pin 13 is always along the x-axis direction. When the punch 1 punches the first small groove, it is only necessary to install the seamless welded pipe 19 in place. When punching the second small groove, it is necessary to ensure that it is 90° apart from the first small groove. Rotate the seamless welded pipe 19 and move the positioning pin 13 so that the positioning pin 13 faces the first small groove, indicating that the seamless welded pipe 19 is rotated 90°. Repeat this operation to achieve four small grooves spaced at equal angles along the seamless welded pipe 19.

[0050] like Figure 1 and Figure 2 As shown, in some embodiments, a spring 16 is further included; the spring 16 is sleeved on the positioning pin 13, and one end of the spring 16 abuts against the vertical plate 14, so that the positioning pin 13 abuts against the thin-walled seamless welded pipe 19. Under the action of the spring 16, the positioning pin 13 always abuts against the outer surface of the thin-walled seamless welded pipe 19. The extrusion force of the spring 16 is conducive to keeping the thin-walled seamless welded pipe 19 immovable relative to the die 4, thereby improving the stamping accuracy.

[0051] like Figure 4 As shown, in some embodiments, the mold base 8 is provided with a mounting hole 17, and the outer surface of the die 4 is provided with a flange 5, which divides the die 4 into a mounting portion 401 and a supporting portion 402; the mounting portion 401 of the die 4 passes through the mounting hole 17 thereof; the cross sections of the mounting hole 17 and the mounting portion 401 are both rectangular;

[0052] One end of the die 4 located at the mounting portion 401 is fixedly connected to the connecting plate 18 by bolts; the die 4 is simultaneously abutted against the die base 8 by the connecting plate 18 and the flange 5 to ensure that the die 4 will not reciprocate along the mounting hole 17; at the same time, the cross-sections of the mounting hole 17 and the mounting portion 401 are both rectangular, so the die 4 will not rotate along its own direction, thereby achieving a detachable fixed connection between the die 4 and the die base 8; the die 4 is easy to replace.

[0053] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A slotting die device, characterized in that: include: An upper mold and a lower mold; The upper mold part comprises: an upper mold plate and a male mold fixedly connected to the upper mold plate; The lower module comprises: A concave die used to support a thin-walled seamless welded pipe, and cooperates with a convex die to punch out a small groove on the outer surface of the thin-walled seamless welded pipe; a stamping groove having the same shape as the convex die is provided on the outer peripheral surface of the concave die; A lower mold plate and a mold base integrated with the lower mold plate; the concave mold is fixedly mounted on the mold base; The guide assembly is used to make the punch face the punching groove.

2. A slotting die device according to claim 1, characterized in that: It also includes a mold handle, which is fixedly connected to the upper mold plate.

3. A slotting die device according to claim 1, characterized in that: The guide assembly comprises a guide column and a guide sleeve, wherein the guide column is fixedly connected to the upper mold plate, the guide sleeve is arranged on the mold base, and the guide sleeve matches the shape of the guide column.

4. A slotting die device according to claim 1, characterized in that: It also includes an angle positioning member for accurately determining that the angle between adjacent small grooves of the thin-walled seamless welded pipe is 90°; the angle positioning member includes a positioning pin and a vertical plate (14) for supporting the positioning pin; a pin hole is provided on the vertical plate (14), and the positioning pin slides through the pin hole; the punching direction of the punch is the z-axis, the pin hole is the x-axis direction, and the positioning pin is always along the x-axis direction.

5. A slotting die device according to claim 4, characterized in that: It also includes a spring, which is sleeved on the positioning pin, one end of the spring is fixedly connected to the positioning pin, and the other end of the spring abuts against the vertical plate (14) to achieve abutment between the positioning pin and the thin-walled seamless welded pipe.

6. A slotting die device according to claim 1, characterized in that: A mounting hole is provided on the die base; a flange is provided along the outer circumference of the punch, dividing the punch into a mounting portion and a supporting portion; the cross-sections of the mounting hole and the mounting portion are both rectangular; the die is located at one end of the mounting portion and is fixedly connected to the connecting plate; when the mounting portion passes through the mounting hole, the connecting plate and the flange abut against the die base at the same time.

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