CN116371997A - Stamping device and stamping method for bearing bush type thin plate parts - Google Patents

Abstract

The utility model provides a bearing bush type sheet part stamping device and a stamping method, wherein the stamping device comprises an upper template and a lower template, and the upper template and the lower template are fixedly connected with a press; the movable module and the inner core are fixed below the upper template; a stamping groove is formed in the movable module, and an inner core is attached to the stamping groove; two symmetrically distributed positioning steps are arranged in the stamping groove, a limiting cavity is formed between the two positioning steps, a sheet part to be stamped is placed in the limiting cavity, and the shape of the limiting cavity is matched with that of a finished product; the movable module is provided with two flaps, the two flaps of movable module is arranged on the lower template, and the driving device drives the two flaps of movable module to open outwards to finish demoulding. The finished product stamped by the device and the method does not need to be corrected by a hammering method, a rolling method, a point-by-point extrusion method and the like after stamping, and the problems of wave deformation, radian deformation and the like are avoided, so that the stamping can be ensured to be in place by one-step forming, and the quality and the production efficiency of the finished product are improved.

Description

Stamping device and stamping method for bearing bush type thin plate parts

technical field

The invention relates to the technical field of punching, and more specifically, to a punching device and a punching method for wind power elastic damping bush type thin plate parts.

Background technique

With the development of social economy and the improvement of manufacturing level, the requirements for finished products are getting higher and higher. At present, the bearing bush type thin plate parts are formed by the rolling process, which requires multiple positioning, complex process parameter setting, complicated curling operation, and high requirements for the ability of the operators of the curling process. Therefore, the forming production efficiency of the coiling process is low, and the production man-hour is long. Bearing bush type thin plate parts can also be formed by stamping process. Metal sheet cold stamping process is a processing method widely used in industrial production. Due to the characteristics of light weight, easy processing and forming, and convenient connection of the bearing pad thin plate, the cold stamping process can be adopted to improve the production efficiency of the finished product and reduce the manufacturing cost of the finished product.

For example, the patent number is 202222368223.6, and the patent name is a utility model patent for a three-dimensional forming mold with various curved surfaces of tungsten and molybdenum materials. The concave part of the die, the side surface of the concave part of the die is inlaid with the concave plate of the die, the upper surface of the bottom plate of the die is provided with the side table of the die, and the upper part of the die assembly is provided with a convex Die assembly, after the die assembly and punch assembly of the mold are installed on the press, the material is heated, and then the press is started to make the concave part of the die concave plate and the punch of the punch convex plate The convex parts fit together, keep tens of seconds in the compressed state, lift the punch assembly, take out the finished product, and the operation is completed, effectively reducing the riveting parts, reducing the difficulty of processing, high processing efficiency, and good dimensional accuracy.

For example, the patent number is 202221645633.4, and the patent name is a utility model patent for a stamping die for bearing bush processing, including a stamping upper die assembly and a stamping lower die assembly; The stamping upper die is provided with a stamping part at the bottom of the stamping die, and a plurality of positioning columns are provided on both sides of the stamping part. The plurality of stamping upper dies are provided with first mounting holes, and a first mounting hole is arranged in the first mounting holes. Cylinder, the two ends of the first installation cylinder are provided with a first installation cover; the stamping lower die assembly includes a plurality of stamping lower dies arranged in sequence from left to right, and the upper surface of the stamping lower die is provided with a stamping part that matches the stamping part. There are multiple sets of cushioning components arranged on both sides of the stamping groove, and a second mounting hole is opened on the plurality of stamping lower dies, and a second mounting cylinder is arranged in the second mounting hole, and the two ends of the second mounting cylinder A second mounting cover is provided. The upper bending die and the lower bending die of the utility model are assembled in multiple sections, and only the damaged parts need to be replaced during maintenance, which saves maintenance time and cost.

For example, the patent application number is 202110478259.7, and the patent name is an invention patent of a compressor bearing production equipment and its production process. The compressor bearing production equipment includes a frame, an upper mold and a lower mold. Guide rods are provided, the lower mold is arranged on the frame, the upper mold is provided with a first sliding block and a second sliding block that cooperate with each other, and the first sliding block and the second sliding block are provided with The inner lining of the bearing bush is matched with the cavity of the insert. The upper mold is symmetrically provided with a first moving part and a second moving part that make the mirror image movement of the first sliding block and the second sliding block. The lower mold is provided with a movable The lifting part for the longitudinal displacement of the lower mold greatly improves the production efficiency of the composite bearing bush, reduces the production cost, and saves the production process.

The above three patents all involve the stamping and forming process of bush-type thin plate parts. They are all equipped with molds that match the shape of the parts on the press. The first and second patents are punched downwards, and the third patent is On the contrary, it is the die that punches down. Regardless of the stamping method, there is no limit to the stamping position of the part. This is due to the fact that the thin plate is less restrained during the stamping process, and the stamping stress is released after stamping, resulting in uneven stress and strain, wave deformation, arc deformation and other problems, which directly affect the welding quality, structural performance, and safety. Reliability and manufacturing process, etc. Therefore, mechanical correction is often required after forming. Mechanical correction methods mainly include hammering method, rolling method, point-by-point extrusion method, etc. These methods can correct deformation to a certain extent, but there are certain shortcomings and deficiencies. Correcting deformation requires special process equipment, which not only increases manufacturing costs, but also prolongs production hours and reduces production efficiency.

Contents of the invention

The technical problem to be solved by the present invention is to provide a punching device for bush-type thin-plate parts, which can be used in the stamping process of the bearing-pad-type thin-plate parts, aiming at the shortcomings of the prior art that are less constrained and prone to quality problems after stamping. The parts are limited in the center to ensure that the stamping is in place at one time, the quality of the finished product and the production efficiency are improved, and the pressure can be used to realize automatic mold closing and demoulding.

Above-mentioned purpose of the present invention is achieved through the following technical solutions:

A stamping device for bearing bush type thin plate parts, including an upper template and a lower template, which are fixedly connected with a press; a movable module and an inner core fixed under the upper template are also included; punching grooves are opened in the movable module, The inner core fits with the stamping groove; there are two symmetrically distributed positioning steps in the stamping groove, and a limiting cavity is formed between the two positioning steps. The thin plate to be punched is placed in the limiting cavity, and the shape of the limiting cavity It matches the shape of the finished product; the movable module has two petals, which are placed on the lower formwork, and the driving device drives the two petals to open outward to complete demoulding.

In the present invention, a limiting cavity matching the size of the finished product is set in the stamping groove to limit the position during the stamping process of the finished product. The limiting cavity can prevent the movement and uneven deformation of the thin plate, and the driving device drives the movable module to open to complete the demoulding. . After stamping, there is no need to use hammering method, rolling method, point-by-point extrusion method, etc. for correction, and there will be no problems such as wave deformation and arc deformation. The invention can ensure that the stamping can be formed in place at one time, and the quality of the finished product and the production efficiency are improved.

Further, it also includes a support, the support is fixed with the lower formwork, and the support also includes two petals, the two-petal movable module is located between the two petal supports, the two petal movable modules are respectively movably connected with the two-petal support, and the movable module is connected with the two petal support. The position of the movable connection is that the fulcrum rotates to the outside or inside of the movable module; when the mold is closed, there is an angled gap at the joint of the two petal movable modules, which provides space for the movable module to rotate outward; the driving device drives the movable module to rotate outward and open .

The support is fixed to the lower template, and the position of the movable module can be limited by setting the support. Due to the setting of the limiting cavity, the limiting cavity limits the finished product, so it is necessary to release the limiting when demoulding. In the present invention, the movable module can be moved up and rotated. When demoulding, the movable module rotates to the outside of the movable module with the movable connection position as the fulcrum, that is, the movable module is opened upward and outward relative to the finished product, thereby automatically completing the demoulding. It should be noted that there is an angled gap at the joint of the two-petal movable modules, which provides space for the movable modules to rotate outward. The stamping device of the bush type thin plate part of the present invention is very simple in structure and easy to operate, and can quickly complete demoulding by driving the movable module. The support is used to install the movable module.

The movable module is set to be movably installed on the support, and the movable module can rotate outward or inward with the connection position as the fulcrum. The advantage of this structure is that when the press drives the upper template to drive the inner core to move down, the inner core presses down on the movable module. , so that the movable module rotates inward to realize automatic mold closing. When the press drives the upper template to move the inner core upward, the pressure is released, and the movable module has no pressure. Combined with the drive of the driving device, the movable module can rotate to the outside to realize automatic demoulding.

Furthermore, the movable module is movably connected with the support through a fastener, and the movable module rotates with the fastener as a fulcrum. Fasteners such as bolts are all standard parts that can be bought in the market, and the installation is also very convenient.

Furthermore, the side of the support facing the movable module has a slope 1, and the surface of the movable module corresponding to the support has a slope 2; when the mold is closed, the slope angle α of the slope 1 relative to the lower template is less than or equal to the slope 2 relative to the bottom The inclination angle β of the formwork makes there be a gap between the first inclined plane and the second inclined plane, providing space for the movable module to rotate outward.

The present invention can limit the rotation angle of the movable module while installing and limiting the position of the movable module through the cooperation of the two inclined surfaces. The angle at which the movable modules open is just right for demoulding.

Further, slope one is composed of a first slope and a second slope, the slope angle α1 of the first slope relative to the lower template is smaller than the slope angle α2 of the second slope relative to the bottom template, and β is greater than or equal to the angle α2 of the second slope.

Furthermore, a groove is formed on the first slope, and a convex ball adapted to the groove is fixed on the second slope. The movable module uses the fastener as a fulcrum, and the convex ball rotates in the groove.

Further, the bottoms of the two-petal movable modules are respectively provided with a driving device, the driving device is a ejector structure, and the ejector structure includes a ejector rod and a spring; holes are opened on the lower template, and springs and ejector rods are sequentially placed in the holes; When molding, the spring is under pressure; when demolding, the spring stretches to push the ejector pin through the lower template to push the movable module upwards, so that the movable module can rotate.

The driving device of the present invention can be a purely mechanical mechanism, using the elastic force of the spring. When the mold is closed, the spring is pressed. When the mold is demoulded, the upper mold plate and the inner core move upward, the punching force of the press is released, and the return of the spring drives the ejector pin. Push up the movable module to make the movable module rotate outward, that is, the movable module moves upward and outward, thereby automatically completing the demoulding.

Further, the bottoms of the two movable modules are respectively provided with a driving device, and the driving device is an air cylinder. When demoulding, the output end of the air cylinder pushes the movable module upwards through the lower formwork to make the movable module rotate.

Further, there are screw holes on the support, which are connected with the lower formwork by bolts. At least two screw holes are arranged on the support along the length direction of the lower template.

The present invention also provides a stamping method for bush-type thin plate parts, using the above-mentioned stamping device for bush-type thin-plate parts to stamp and form the bush-type thin-plate parts, placing the thin-plate parts to be punched in the limiting cavity, and connecting them through a press The upper platen drives the inner core to press down for stamping; after the pressure is maintained, the upper platen moves upwards, and the driving device pushes out the movable module upwards, so that the movable module is rotated and opened, so that the bearing bush type thin plate parts are automatically separated from the mold cavity, and can be taken out for subsequent next step. One piece finished stamping production.

The present invention has the following beneficial effects:

The stamping device of the bush-type thin plate part of the present invention includes an upper template, a lower template, an inner core installed on the upper template, and a movable module installed on the lower template. The deformation of the thin plate is limited, and a limited cavity is arranged in the stamping groove. The limiting cavity can reduce the difficulty and time of stamping positioning, prevent the movement and uneven deformation of the thin plate, and ensure the quality of the finished product.

The device of the present invention has a simple structure, and through the cooperation between the parts and the design of the structural shape of the parts, it can quickly and conveniently realize automatic mold closing and automatic demoulding: precisely because of the setting of the limited cavity, how to realize the automatic demoulding conveniently and quickly Modeling is a difficult problem to solve. The invention skillfully arranges the support and the movable module, the support and the lower formwork are fixed, and the movable module between the two supports is limited; the movable module and the support are movably connected by bolts, and the driving device drives the movable module with bolts as the The fulcrum rotates to realize automatic demoulding. There is an angled gap at the joint of the two movable modules, and the angle faces the lower formwork, providing space for the movable module to rotate outward; the inclination angle of the first slope is smaller than that of the second slope, so that there is a gap between the support and the movable module , to provide space for the movable module to rotate outward; the above settings realize the smooth rotation of the movable module.

Modular design is used to realize the ease of disassembly and assembly of different modules. By replacing the movable modules, it can adapt to the finished products with different arc size requirements. The device has the advantages of low cost, easy assembly and operation, high production efficiency, and no need for special equipment.

Description of drawings

The accompanying drawings constituting a part of the present application are used to provide a further understanding of the present invention, and the schematic embodiments and descriptions of the present invention are used to explain the present invention, and do not constitute an improper limitation of the present invention. In the attached picture:

Figure 1 is a schematic diagram of the clamping structure of a stamping device for bearing bush type thin plate parts.

Figure 2 is a schematic diagram of the cooperation of inclined plane 1 and inclined plane 2 (when the mold is closed).

Figure 3 is a schematic diagram of the cooperation between inclined plane 1 and inclined plane 2 (during demoulding).

Figure 4 is a schematic diagram of the demoulding structure of the stamping device for bearing bush type thin plate parts (the upper template and the inner core are removed).

Fig. 5 is a schematic diagram of the structure when the two-petal movable modules are closed.

Upper template 1, lower template 2, inner core 3, left movable module 4A, right movable module 4B, stamping groove 41, positioning step 42, slope 2 43, convex ball 44, gap 5, left support 6A, right support 6B, slope one 61, first slope 611, second slope 612, screw hole 62, bolt 63 connecting the support to the lower template, bolt 7 connecting the movable module to the support, gap 8, ejector rod 9, spring 10, Thin plate parts 11 and finished products 12 to be stamped.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

Example 1

A bearing bush type thin plate part stamping device, as shown in Figure 1, includes an upper template 1 and a lower template 2, the upper template 1 and the lower template 2 are fixedly connected to the press; The inner core below; there is a stamping groove 41 in the movable module, and the inner core fits with the stamping groove 41; two symmetrically distributed positioning steps 42 are arranged in the stamping groove 41, and a limit is formed between the two positioning steps 42. Position cavity, the thin plate to be stamped 11 is placed in the limit cavity, the shape of the limit cavity matches the shape of the finished product 12; the movable module is two petals (left movable module 4A and right movable module 4B), and the two petal movable modules are placed in Lower template 2.

The support is fixed with the lower formwork 2, and the support also includes two petals (left support 6A and right support 6B). 7. Flexible connection, the movable module takes the bolt 7 as the fulcrum to rotate to the outside or inside of the movable module (rotate to the outside when demoulding, and rotate to the inside when closing the mold). When demolding, the support is fixed, the movable module rotates outward, and the fulcrum is set at the connection between the movable module and the support. While the support limits the movable module, the movable module must be between the two supports. rotate. As shown in Fig. 1, the movable module is placed on the lower template 2, the bottom of the movable module is in contact with the lower template 2, and the outer surface of the movable module is connected with the fixed support. Therefore, there must be a space for the movable module to rotate at the bottom and the outer surface of the movable module.

1. The bottom of the movable module: when the mold is closed, there is an angled gap 5 at the joint of the two petal movable modules, which provides space for the movable module to rotate outward; the joint of the two petal movable modules has an angled gap 5, and the two movable modules The modules must first be contacted to form a stamping groove 41 , therefore, as shown in FIG. 1 , the gap 5 at the joint of the two movable modules faces the lower template 2 . The inner surface of the movable module is an outwardly inclined slope. When the molds are closed, the two movable modules are spliced to form an angled gap 5 , and the gap 5 faces the lower formwork 2 . As shown in Fig. 4, after demoulding, the gap 5 is reduced.

2. The outer side of the movable module: as shown in Figure 1 and Figure 4, the side of the support facing the movable module has an inclined surface 61, and the surface corresponding to the movable module and the support has an inclined surface 2 43 and an inclined surface 61. The angle α is smaller than the inclination angle β of the slope 2 43, which provides space for the movable module to rotate outward; the slope 1 61 has a groove, and the slope 2 43 is fixed with a convex ball 44 adapted to the groove. The fastener is the fulcrum, and the convex ball 44 rotates in the groove. As shown in Figure 1, the movable module rotates to the outside, with bolt 7 as the fulcrum, since the inclination angle of slope one 61 is smaller than the slope angle of slope two 43, when the mold is closed, along the slope, above the bolt 7, slope one There is a gap 8 between the slope 61 and the second slope 43 . As shown in Figure 4, after demolding, the gap 8 is reduced.

As shown in FIGS. 2 and 3 , in order to allow the support to limit the position of the movable module and provide space for the rotation of the movable module, the inclined plane 1 61 is composed of a first inclined plane 611 and a second inclined plane 612 . As shown in Figure 2, when the mold is closed, the inclination angle α1 of the first inclined surface 611 relative to the lower template 2 is smaller than the inclination angle α2 of the second inclined surface 612 relative to the lower template 2 (α1<α2), and β is greater than or equal to the angle of the second inclined surface 612 α2 (β≥α2). When α2=β, when the mold is closed, the second slope 43 is in parallel contact with the second slope 612, and there is a gap between the second slope 43 and the first slope 611; after the movable module rotates outward, the second slope 43 is parallel to the first slope 611 touch. When β>α2, when the mold is closed, the second inclined plane 43 does not contact the second inclined plane 612; there is a gap between the second inclined plane 43 and the first inclined plane 611; as shown in Figure 3, after the movable module rotates outward, the second inclined plane 43 It is in parallel contact with the first slope 611 . In general, when the mold is closed, the bottom of the movable module contacts the lower template, and the two movable modules are spliced together to form a stamping groove; after demoulding, the second inclined surface is in parallel contact with the first inclined surface, which ensures the life of the parts and at the same time ensures the opening model stability. The selection of α1, α2, and β angles depends on the angle at which the movable module needs to be opened during demoulding. In this embodiment, β>α2>α1.

The bottom of the two-petal movable module is respectively provided with a driving device, the driving device is a ejector structure, and the ejector structure includes a ejector rod 9 and a spring 10; a hole is opened on the lower template 2, and a spring 10 and an ejector rod 9 are placed in the hole in turn. ; When the mold is closed, the spring 10 is under pressure; when the mold is demoulded, the spring 10 stretches and pushes the ejector pin 9 to pass through the lower template 2 and pushes the movable module upwards to rotate the movable module.

There are screw holes 62 on the support, and bolts 63 are used to connect with the lower formwork 2; at least two screw holes 62 are arranged on the support along the length direction of the lower formwork 2.

The stamping device of the bush-type thin plate part described in this embodiment is provided with a limiting cavity, which reduces the difficulty and time of stamping positioning. After stamping, there is no need to use hammering method, rolling method, point-by-point extrusion method, etc. for correction, and there will be no problems such as wave deformation and arc deformation. It can ensure that the stamping is in place at one time, reducing stamping deformation and stamping correction time. efficient. On the other hand, because it can be formed in place at one time, it can avoid the surface quality defects of the bearing bush thin plate parts caused by the shaping, and improve the product qualification rate. When closing the mold, place the thin plate part 11 to be punched in the limiting cavity, start the press to drive the upper template 1 to move down, the inner core fits the punching groove 41, and provides pressure to punch the thin plate part 11 to be punched. During the downward movement of the inner core, the mold closing can be completed step by step. In this application, the mold closing can be completed by means of the stamping pressure, and the mold closing does not require labor and equipment assistance. When demolding, the upper template 1 drives the inner core to move up, the pressure is released, and the spring 10 of the ejection structure at the bottom of the movable module stretches, so that the ejector rod 9 pushes the movable module upward, and the movable module rotates with the bolt 7 as the fulcrum, and the demoulding is automatically completed . That is to say, after the pressure is released, the demoulding process does not require manual or instrumental assistance. When stamping workpieces of different sizes, only the movable module needs to be replaced, and the movable module and the support are connected by bolts 7, which is convenient and quick to replace. At the same time, the position of the support can also be adjusted. It should be noted that another important advantage of this application is: the support is connected to the lower formwork with 2 bolts 63, the movable module is connected to the support with 7 bolts, the inner core is connected to the upper formwork with 1 bolt, and the assembly between parts is simple and easy to operate. easy.

Combining the above, the structure design of this application is ingenious, which makes the assembly simple and the operation convenient, and the automatic mold closing and demoulding can be automatically completed only by the pressure of the press. Significantly improve product production efficiency and reduce work intensity.

Example 2

A stamping method for a bush-type thin-plate part, using the stamping device for a bush-type thin-plate part described in Embodiment 1 to stamp and form a bush-type thin-plate part, placing the thin-plate part 11 to be stamped in a limiting cavity, and connecting the upper template through a press 1 Drive the inner core to press down for stamping, and automatically realize mold closing; after the pressure is maintained, the upper template 1 moves up, and the driving device pushes out the movable module upwards, so that the movable module is rotated and opened, so that the bearing bush type thin plate parts are automatically separated from the mold cavity, and taken out Can carry out follow-up next finished product 12 stamping productions.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of the present invention.

Claims (10)

1. The bearing bush type sheet part stamping device comprises an upper die plate and a lower die plate, and is characterized in that the upper die plate and the lower die plate are fixedly connected with a press; the movable module and the inner core are fixed below the upper template; a stamping groove is formed in the movable module, and an inner core is attached to the stamping groove; two symmetrically distributed positioning steps are arranged in the stamping groove, a limiting cavity is formed between the two positioning steps, a sheet part to be stamped is placed in the limiting cavity, and the shape of the limiting cavity is matched with that of a finished product; the movable module is provided with two flaps, the two flaps of movable module is arranged on the lower template, and the driving device drives the two flaps of movable module to open outwards to finish demoulding.

2. The bushing type sheet part stamping device according to claim 1, further comprising a support, wherein the support is fixed with the lower die plate, the support also comprises two flaps, the two flap movable modules are positioned between the two flaps of the support, the two flap movable modules are respectively and movably connected with the two flaps of the support, and the movable modules rotate towards the outer side or the inner side of the movable modules by taking the movable connection position as a pivot; when the die is assembled, an angled gap is formed at the joint of the two movable modules, so that a space is provided for the movable modules to rotate outwards; the driving device drives the movable module to rotate outwards to open.

3. A bushing-type sheet metal part stamping device as claimed in claim 2, wherein the movable module is movably connected to the support by a fastener, and the movable module rotates about the fastener as a fulcrum.

4. A bushing-type sheet metal part stamping device as claimed in claim 3, wherein the side of the support facing the movable module is provided with a first inclined surface, and the corresponding surface of the movable module and the support is provided with a second inclined surface; when the die is assembled, the inclination angle alpha of the inclined plane I relative to the lower die plate is smaller than or equal to the inclination angle beta of the inclined plane II relative to the lower die plate, so that a gap is formed between the inclined plane I and the inclined plane II, and a space is provided for the movable die block to rotate outwards.

5. The bushing-type sheet metal part stamping device of claim 4, wherein the first inclined surface is composed of a first inclined surface and a second inclined surface, and an inclination angle α1 of the first inclined surface relative to the lower die plate is smaller than an inclination angle α2 of the second inclined surface relative to the lower die plate, and β is greater than or equal to an angle α2 of the second inclined surface.

6. The bushing-type sheet metal part stamping device of claim 4, wherein the first inclined surface is provided with a groove, the second inclined surface is fixedly provided with a convex ball matched with the groove, and the movable module takes a fastening piece as a fulcrum, and the convex ball rotates in the groove.

7. The bearing bush type sheet part stamping device according to claim 4, wherein the bottoms of the two movable modules are respectively provided with a driving device, the driving device is an ejection structure, and the ejection structure comprises an ejector rod and a spring; the lower template is provided with a hole, and a spring and a push rod are sequentially arranged in the hole; when the die is closed, the spring is pressed; when demoulding, the spring stretches to push the ejector rod to pass through the lower die plate to push the movable module upwards, so that the movable module rotates.

8. The bushing type sheet metal part stamping device of claim 4, wherein the bottoms of the two movable modules are respectively provided with a driving device, the driving devices are air cylinders, and when the bushing type sheet metal part stamping device is demoulded, the output ends of the air cylinders penetrate through the lower die plate to push the movable modules upwards, so that the movable modules rotate.

9. The bushing type sheet metal part stamping device of claim 4, wherein the support is provided with a screw hole and is connected with the lower die plate by using a bolt; at least two screw holes are arranged on the support and along the length direction of the lower template.

10. A stamping method of a bearing bush type sheet part, which is characterized in that the bearing bush type sheet part stamping device is used for stamping and forming the bearing bush type sheet part, the sheet part to be stamped is placed in a limiting cavity, and an upper die plate is connected through a press to drive an inner core to press down for stamping; after pressure maintaining, the upper die plate moves upwards, the driving device ejects the movable module upwards, so that the movable module rotates to be opened, the bearing bush type thin plate part and the die cavity are automatically separated, and the next finished product can be punched and produced after being taken out.

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