Material pressing and flanging die capable of preventing edge warping

Abstract

The utility model relates to the technical field of dies, and provides an anti-edge-warping material pressing and flanging die which comprises a bottom plate and a die holder, the die holder is arranged on the bottom plate, a discharging assembly is arranged between the bottom plate and the die holder, a stamping and flanging assembly is arranged at the top of the die holder and comprises a plurality of positioning columns, and the positioning columns are fixed to the top of the die holder. The positioning columns are slidably sleeved with a top seat, the positioning columns are sleeved with first springs, an upper mold is arranged at the bottom of the top seat, and a through cavity is formed in the top seat. According to the technical scheme, the problems that in the related technology, many devices are occupied, the device purchase cost is increased, many workers are occupied, multiple parts need to be welded, polished and transferred, the labor cost is high, the cost of the welding procedure is far higher than that of stamping, polishing and wire drawing are needed after welding, and the reject ratio is high are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of molds, and in particular to an anti-warping edge pressing and flanging mold. Background Art

[0002] Existing drawing dies are generally targeted at products with closed peripheries. For example, Chinese patent CN105618581A discloses a nitrogen cylinder spring-type deep drawing die, which replaces traditional rubber with a nitrogen cylinder spring. The strong, basically constant and stable elastic force of the nitrogen cylinder spring is used to keep the blanking force within an appropriate numerical range, ensuring that the material can smoothly enter the concave mold cavity. Only one deep drawing can meet the requirements of the drawing, and it will not break, the circumferential surface will be smooth and wrinkle-free. For products that are half closed and half open, two processes are often required for stretching and bending and flanging respectively. This multi-process processing method has many problems: it occupies a lot of equipment, increases the cost of equipment procurement, occupies a lot of manpower, and multiple parts need to be welded, polished and transported, resulting in high labor costs. The cost of the welding process is much higher than the cost of stamping, and grinding and drawing are required after welding, and the defect rate is high.

[0003] Therefore, improvements are made to address the above problems. Utility Model Content

[0004] The utility model proposes an anti-warping edge pressing and flanging die, which solves the problems in the related technology of occupying a lot of equipment, increasing equipment procurement costs, occupying a lot of manpower, and having multiple parts, which require welding, grinding and transportation, resulting in high labor costs. The cost of the welding process is much higher than the cost of stamping, and grinding and drawing are required after welding, and the defective rate is high.

[0005] The technical solution of the utility model is as follows:

[0006] A bottom plate and a mold base, wherein the mold base is arranged on the bottom plate;

[0007] A discharging assembly, the discharging assembly being arranged between the bottom plate and the mold base;

[0008] A stamping flanging assembly, wherein the stamping flanging assembly is arranged on the top of the die base, and the stamping flanging assembly includes a plurality of positioning columns, wherein the positioning columns are fixed on the top of the die base, wherein the external sliding sleeve of the positioning columns is connected to a top seat, wherein the external sleeve of the positioning columns is connected to a first spring, an upper die is arranged at the bottom of the top seat, and a through cavity is opened inside the top seat.

[0009] As a further technical solution, a pair of inner columns are arranged in the through cavity, a flanging mold is sleeved and connected to the outside of the inner columns, an auxiliary hydraulic cylinder is arranged on the top of the top seat, and an output end of the auxiliary hydraulic cylinder is fixedly connected to the flanging mold.

[0010] As a further technical solution, the discharge assembly includes a transverse groove, which is opened on the surface of the mold base, a side opening is opened on one side of the bottom plate surface, transverse holes are opened on both sides of the transverse groove, a fixed plate is fixedly connected to the bottom plate surface, and a telescopic cylinder is installed on the side surface of the fixed plate.

[0011] As a further technical solution, the output end of the telescopic cylinder is connected to a connecting frame, a pair of round rods are installed in the horizontal hole, a moving block is slidably connected to the outside of the round rods, a fixed shaft is connected between the moving block and the connecting frame, and the lower mold is rotatably connected to the outside of the fixed shaft.

[0012] As a further technical solution, the side opening matches the inner diameter of the transverse groove.

[0013] As a further technical solution, a stamping connection block is arranged on the top of the top seat, and the stamping connection block is a concave structure.

[0014] As a further technical solution, a return spring is sleeved and connected to the outside of the round rod.

[0015] As a further technical solution, the lower mold can be rotated downward 90° outside the fixed shaft.

[0016] The working principle and beneficial effects of the utility model are:

[0017] 1. The utility model is provided with a flanging assembly. Through the interaction of structures such as a top seat, an upper mold, a through cavity, a column, a flanging mold and an auxiliary hydraulic cylinder, an upper mold and a flanging mold can be respectively arranged at the bottom and inside of the top seat. After the stamping is completed, the auxiliary hydraulic cylinder is started at the same time to make the flanging mold descend quickly for flanging processing, and reset at the same time after completion, which can effectively avoid the occurrence of warping, and has good molding effect and practicality.

[0018] 2. The utility model is provided with a discharging assembly. Through the interaction of structures such as the transverse groove, the transverse hole, the telescopic cylinder, the connecting frame, the moving block, the fixed shaft and the lower mold, the lower mold can be moved laterally outward after being stamped. The lower mold can be turned downward at a certain inclination angle to drop the formed workpiece, which is convenient for material collection and has good safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is the axonometric drawing of the utility model;

[0022] Figure 3 It is a cross-sectional view of the utility model;

[0023] Figure 4 This is a cross-sectional view from another perspective of the utility model;

[0024] In the figure: 1. bottom plate; 2. die base; 3. flanging assembly; 3-1. positioning column; 3-2. top seat; 3-3. first spring; 3-4. upper die; 3-5. through cavity; 3-6. inner column; 3-7. flanging die; 3-8. auxiliary hydraulic cylinder; 4. discharge assembly; 4-1. transverse groove; 4-2. side opening; 4-3. transverse hole; 4-4. fixed plate; 4-5. telescopic cylinder; 4-6. connecting frame; 4-7. round rod; 4-8. moving block; 4-9. fixed shaft; 4-10. lower die; 5. stamping connection block; 6. return spring. DETAILED DESCRIPTION

[0025] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figure 1~Figure 4 As shown, this embodiment provides a material pressing and flanging die for preventing warping, comprising

[0027] A base plate 1 and a mold base 2, wherein the mold base 2 is arranged on the base plate 1;

[0028] A discharge assembly 4, which is arranged between the bottom plate 1 and the mold base 2;

[0029] The stamping flanging assembly 3 is arranged on the top of the die base 2. The stamping flanging assembly 3 includes a plurality of positioning columns 3-1. The positioning columns 3-1 are fixed on the top of the die base 2. The external sliding sleeve of the positioning columns 3-1 is connected with the top seat 3-2. The external sleeve of the positioning columns 3-1 is connected with the first spring 3-3. The bottom of the top seat 3-2 is provided with an upper mold 3-4. The top seat 3-2 is provided with a through cavity 3-5. A pair of inner columns 3-6 are provided in the through cavity 3-5. The external sleeve of the inner columns 3-6 is connected with the flanging mold 3-7. The top of the top seat 3-2 is provided with an auxiliary hydraulic cylinder 3-8. The output end of the auxiliary hydraulic cylinder 3-8 is fixedly connected to the flanging mold 3-7.

[0030] In this embodiment, in order to achieve the effect of stable flanging of the material after stamping, a flanging component 3 is designed, and a plurality of positioning columns 3-1 are arranged on the top of the die base 2, and a top seat 3-2 is connected to the positioning columns 3-1, and a first spring 3-3 is mounted on the positioning columns 3-1. The top seat 3-2 can stably move up and down on the positioning columns 3-1, and an upper mold 3-4 is arranged at the bottom of the top seat 3-2, which can be used for stamping when it is descended, and a through cavity 3-5 is opened in the top seat 3-2, and two inner columns 3-6 are arranged in the through cavity 3-5, and the outer sliding sleeve of the inner column 3-6 is connected to the flanging mold 3-7, and two auxiliary hydraulic cylinders 3-8 are also arranged on the top of the top seat 3-2, and the output end of the auxiliary hydraulic cylinder 3-8 is connected to the flanging mold 3-7, so that during the pause process after stamping, the flanging mold 3-7 can be descended for the second time to perform flanging.

[0031] Furthermore, the discharge assembly 4 includes a transverse groove 4-1, which is opened on the surface of the mold base 2, a side opening 4-2 is opened on one side of the surface of the bottom plate 1, and transverse holes 4-3 are opened on both sides of the transverse groove 4-1. A fixed plate 4-4 is fixedly connected to the surface of the bottom plate 1, and a telescopic cylinder 4-5 is installed on the side surface of the fixed plate 4-4. The output end of the telescopic cylinder 4-5 is connected to a connecting frame 4-6, and a pair of round rods 4-7 are installed in the transverse hole 4-3. The round rods 4-7 are externally slidably connected to a moving block 4-8, and a fixed shaft 4-9 is connected between the moving block 4-8 ​​and the connecting frame 4-6, and the fixed shaft 4-9 is externally rotatably connected to the lower mold 4-10.

[0032] In this embodiment, in order to achieve the effect of discharging the material after molding, a discharging component 4 is designed, a transverse groove 4-1 is opened on the surface of the mold base 2, a side port 4-2 connected to the transverse groove 4-1 is opened on the surface of the bottom plate 1, and transverse holes 4-3 are opened on both sides of the transverse groove 4-1. A pair of round rods 4-7 are arranged inside the transverse holes 4-3, and a moving block 4-8 ​​is slidably connected to the outside of the round rods 4-7. A fixed plate 4-4 is arranged on the surface of the bottom plate 1 on the other side, and a telescopic cylinder 4-5 is installed on the surface of the fixed plate 4-4. The telescopic cylinder The output end of the cylinder 4-5 is connected to a connecting frame 4-6, and a fixed shaft 4-9 is connected to the connecting frame 4-6 at the side end surface of the moving block 4-8 ​​and after passing through the transverse hole 4-3. The external rotating sleeve of the fixed shaft 4-9 is connected to the lower mold 4-10. The output end of the telescopic cylinder 4-5 can push the connecting frame 4-6, and cooperate with the moving block 4-8 ​​to push the fixed shaft 4-9, so that the lower mold 4-10 moves toward the side opening 4-2. After moving to the top end, the lower mold 4-10 can rotate downward at the side opening 4-2 to facilitate unloading.

[0033] Furthermore, the inner diameter of the side opening 4-2 matches that of the transverse groove 4-1.

[0034] In this embodiment, the side opening 4-2 and the transverse groove 4-1 have the same size, so that the lower mold 4-10 will not be affected when it is turned downward.

[0035] Furthermore, a stamping connection block 5 is provided on the top of the top seat 3-2, and the stamping connection block 5 is a concave structure.

[0036] In this embodiment, by installing the stamping connection block 5 with a concave structure, it can be accurately docked when connected with the stamping equipment, and the stamping center of gravity is concentrated at the middle force-bearing position.

[0037] Furthermore, a return spring 6 is sleeved and connected to the outside of the round rod 4-7.

[0038] In this embodiment, by installing the return spring 6, the moving block 4-8 ​​can stably slide on the surface of the round rod 4-7 when moving back.

[0039] Furthermore, the lower mold 4-10 can be rotated 90 degrees downward outside the fixed shaft 4-9.

[0040] In this embodiment, the formed material can fall downward quickly at a 90° downward angle, making it easy to collect the material.

[0041] When it is needed, the bottom plate 1 is connected and installed with the equipment, the stamping connection block 5 on the top of the top seat 3-2 is connected with the stamping output end of the equipment, the workpiece material is placed on the lower mold 4-10, and then the stamping equipment is started to move the top seat 3-2 downward, and the stamping is completed through the upper mold 3-4 and the lower mold 4-10. After a short pause after forming, the auxiliary hydraulic cylinder 3-8 is started to push the flanging mold 3-7 downward to complete the flanging of the flanging mold 3-7, and then reset at the same time, and then start the telescopic cylinder 4-5, and the output end extends out to push the connecting frame 4-6, pushing the lower mold 4-10 outward, and the lower mold 4-10 is flipped downward at the side port 4-2, and the material falls off, and then reset to continue stamping.

[0042] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A material pressing and flanging die for preventing warping, characterized in that: include A base plate (1) and a mold base (2), wherein the mold base (2) is arranged on the base plate (1); A discharge assembly (4), wherein the discharge assembly (4) is arranged between the bottom plate (1) and the mold base (2); A stamping and flanging assembly (3), wherein the stamping and flanging assembly (3) is arranged on the top of the die base (2), and the stamping and flanging assembly (3) comprises a plurality of positioning columns (3-1), wherein the positioning columns (3-1) are fixed on the top of the die base (2), wherein the external sliding sleeve of the positioning columns (3-1) is connected to a top base (3-2), wherein the external sleeve of the positioning columns (3-1) is connected to a first spring (3-3), an upper die (3-4) is arranged at the bottom of the top base (3-2), and a through cavity (3-5) is provided inside the top base (3-2).

2. The anti-warping edge pressing and flanging die according to claim 1, characterized in that: A pair of inner columns (3-6) are arranged in the through cavity (3-5), and a flanging die (3-7) is sleeved and connected to the outside of the inner columns (3-6). A secondary hydraulic cylinder (3-8) is arranged on the top of the top seat (3-2), and an output end of the secondary hydraulic cylinder (3-8) is fixedly connected to the flanging die (3-7).

3. The anti-warping edge pressing and flanging die according to claim 1, characterized in that: The discharge assembly (4) comprises a transverse groove (4-1), the transverse groove (4-1) being provided on the surface of the mold base (2), a side opening (4-2) being provided on one side of the surface of the bottom plate (1), transverse holes (4-3) being provided on both sides of the transverse groove (4-1), a fixed plate (4-4) being fixedly connected to the surface of the bottom plate (1), and a telescopic cylinder (4-5) being installed on the side surface of the fixed plate (4-4).

4. The anti-warping edge pressing and flanging die according to claim 3, characterized in that: The output end of the telescopic cylinder (4-5) is connected to a connecting frame (4-6), a pair of round rods (4-7) are installed in the transverse hole (4-3), the round rods (4-7) are externally slidably connected to a moving block (4-8), a fixed shaft (4-9) is connected between the moving block (4-8) and the connecting frame (4-6), and the fixed shaft (4-9) is externally rotatably connected to a lower mold (4-10).

5. The anti-warping edge pressing and flanging die according to claim 3, characterized in that: The side opening (4-2) matches the inner diameter of the transverse groove (4-1).

6. The anti-warping edge pressing and flanging die according to claim 1, characterized in that: A stamping connection block (5) is arranged on the top of the top seat (3-2), and the stamping connection block (5) is a concave structure.

7. The anti-warping edge pressing and flanging die according to claim 4, characterized in that: The round rod (4-7) is sleeved with a return spring (6) on the outside.

8. The anti-warping edge pressing and flanging die according to claim 4, characterized in that: The lower mold (4-10) can be rotated 90 degrees downward outside the fixed shaft (4-9).

Images