Precise stamping device and stamping process

Abstract

The precise stamping device comprises a stamping base located on a production line, a rotating base is connected to the interior of the stamping base, a plurality of stamping upper die assemblies are connected to the top of the rotating base, a plurality of stamping lower die assemblies are connected to the top of the stamping base, and the stamping upper die assemblies and the stamping lower die assemblies are correspondingly arranged. A limiting mechanism is connected to the top of the rotating base and located between the upper stamping die assembly and the lower stamping die assembly. The limiting mechanism comprises a limiting circular truncated cone movably arranged on the outer side of the rotary base body, limiting grooves are formed in the positions, corresponding to the stamping upper die and the stamping lower die, of the limiting circular truncated cone, the limiting mechanism is arranged between the stamping upper die assembly and the stamping lower die assembly, the stamping process is limited, deviation caused by product stamping is avoided, and the stamping quality is improved. The size precision of stamped products is ensured, the rejection rate caused by size deviation is reduced, the product consistency is enhanced, products with higher surface quality can be produced easily, and the precision of stamping machining is improved.

Description

Technical Field

[0001] The invention relates to the field of stamping technology, and in particular to a precise stamping device and a stamping process. Background Art

[0002] Stamping is a forming method that uses a press and a die to apply external force to plates, strips, pipes and profiles to cause plastic deformation or separation, thereby obtaining a workpiece (stamping part) of the desired shape and size; in the prior art, most hardware parts are formed by stamping. The conventional device for stamping hardware parts is to place the raw materials manually or mechanically into the stamping die for stamping. In the traditional stamping process, there are the following problems:

[0003] 1. When the raw material is placed offset, the stamped product will be offset during stamping;

[0004] 2. When the upper die contacts the raw material during the stamping process and does not fully squeeze the raw material with the lower die, the raw material is subjected to force, which is prone to uneven force and slight movement. Because the stamping forming area on the upper die is not a uniform pattern, the product pattern position is inconsistent, making the stamped product not meet the requirements.

[0005] 3. Conventional stamping devices are used to stamp a single product. Different products require different stamping devices for stamping. On the one hand, this leads to low stamping efficiency, and on the other hand, high equipment costs.

[0006] Therefore, a precise stamping device and stamping process are needed to improve the stamping efficiency and the accuracy of stamping. Summary of the invention

[0007] The purpose of the present invention is to provide a precise stamping device and stamping process, which can improve the stamping accuracy by means of stamping limit, solve the problems of stamping product offset and inconsistent stamping pattern position, further realize the diversification of stamping products by means of a combination of multiple stamping upper dies and stamping lower dies, and solve the problem of low stamping efficiency.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] A precision stamping device, comprising a stamping base located on a production line, a rotating base connected inside the stamping base, a plurality of stamping upper die assemblies connected to the top of the rotating base, a plurality of stamping lower die assemblies connected to the top of the stamping base, the stamping upper die assemblies and the stamping lower die assemblies are arranged correspondingly, a limiting mechanism is connected to the top of the rotating base, and the limiting mechanism is located between the stamping upper die assembly and the stamping lower die assembly;

[0010] The limiting mechanism comprises a limiting circular table movably arranged on the outer side of the rotating base body, and the limiting circular table is provided with limiting grooves corresponding to the positions of the stamping upper die and the stamping lower die.

[0011] As a further scheme of the present invention: the stamping base includes a stamping base body, a working chamber is opened inside the stamping base body, a rotating base is rotatably connected to the middle of the working chamber, a cylindrical slide is arranged in the working chamber, the top surface of the cylindrical slide is slidably connected to the sliding base, the top surface of the sliding base is connected to the rotating table, the rotating table is sleeved on the outside of the rotating base, a plurality of mounting columns are arranged between the cylindrical slide and the rotating base, a transmission gear is rotatably connected to the top of the mounting column, a tooth groove is opened on the inner side surface of the sliding base, the tooth groove is meshingly connected to the transmission gear, the transmission gear is meshingly connected to the rotating base, a driving motor is fixedly installed on one side inside the working chamber, the output shaft of the driving motor is connected to the driving gear, and the driving gear is meshingly connected to the rotating base.

[0012] As a further solution of the present invention: the rotating base includes a rotating base body, a rotating tooth groove and a transmission tooth groove are opened at the bottom of the rotating base body, the rotating tooth groove is meshed and connected with the driving gear, the transmission tooth groove is meshed and connected with the transmission gear, the top of the rotating base body is connected with a mounting base plate, a lifting cylinder is arranged in the middle of the top of the mounting base plate, a movable base plate is connected to the telescopic rod of the lifting cylinder, a plurality of connecting rods are connected to the bottom surface of the movable base plate, and the plurality of connecting rods pass through the mounting base plate to cooperate with the connection of the limiting mechanism.

[0013] As a further solution of the present invention: the stamping upper die assembly includes a connecting plate connected to the mounting base plate, a hydraulic cylinder is arranged on the top of the connecting plate, and a telescopic rod of the hydraulic cylinder passes through the connecting plate and is connected to the stamping upper die.

[0014] As a further solution of the present invention: the stamping lower die assembly includes a mounting base, a moving cavity is opened inside the mounting base, a tooth plate is installed above the moving cavity, one end of the moving cavity is slidably connected to a sliding base, a stamping lower die is installed above the sliding base, one side of the stamping lower die is connected to a moving box, a support plate is arranged inside the moving box, a moving motor is installed on the support plate, a moving gear is rotatably connected to the bottom of the moving box, the moving motor and the moving gear are driven by a synchronous belt, and the moving gear is meshingly connected to the tooth plate.

[0015] As a further solution of the present invention: a mounting hole is opened in the middle of the four side surfaces inside the limiting groove, a limiting block is slidably installed in the mounting hole, and a spring is arranged between the limiting block and the bottom surface of the mounting hole.

[0016] As a further solution of the present invention: a fan is installed on the outside of the limiting circular table, a ring-shaped main ventilation channel is opened on the limiting circular table, ventilation branch channels are opened around the limiting groove, the ventilation branch channels are connected with the main ventilation channel, and multiple air outlet channels are opened on the limiting circular table. The multiple air outlet channels are respectively connected with the main ventilation channels or ventilation branch channels at corresponding positions, and the air outlet channels are arranged at an angle.

[0017] As a further solution of the present invention: a stamping process, using the above-mentioned precise stamping device, comprises the following steps:

[0018] Step 1: Stamping preparation: according to the shape of the stamping product, start the driving motor to drive the driving gear to rotate, the driving gear drives the rotating base body to rotate, the rotating base body drives the multiple stamping upper dies on the top to rotate, the synchronous rotating base body drives the transmission gear to rotate in the opposite direction, the transmission gear drives the rotating table to rotate, the rotating table drives multiple stamping lower dies to rotate until the stamping upper die and the stamping lower die of the matching product correspond, stop the driving motor, start the lifting cylinder, drive the limit round table to move downward and cover the stamping lower die;

[0019] Step 2: Stamping: Put the stamping raw material into the limit groove, start the hydraulic cylinder, drive the stamping upper die to move down, and cooperate with the stamping lower die to stamp the product into shape;

[0020] Step 3: Product collection: After the stamping is completed, start the lifting cylinder to drive the limit table to move upward and release the stamping lower die. After the release, start the motion motor to drive the motion gear to rotate, and the motion gear drives the stamping lower die to move outward. After extending the set distance, the robot grabs the product on the stamping lower die, collects it, and completes the stamping.

[0021] As a further solution of the present invention: during the upward movement of the limiting table in step three, multiple limiting blocks elastically extend and retract to limit the product, and after the robot grabs the product, the fan is started to clean the surface of the stamping lower die through multiple air outlet channels, and the next stamping is performed after cleaning.

[0022] Beneficial effects of the present invention:

[0023] The present invention sets a limit mechanism between the stamping upper die assembly and the stamping lower die assembly to limit the stamping process, avoid product stamping deviation, ensure the dimensional accuracy of the stamped product, reduce the scrap rate caused by dimensional deviation, and enhance product consistency, wherein the limit mechanism includes a limit cone and a limit groove, and limit blocks capable of elastic movement are installed on the four sides of the limit groove. The limit blocks can be retracted under the extrusion of the stamping upper die through the elastic force of the spring, and when the stamping upper die rises after the die is opened, the corresponding block extends out to limit the product, so as to avoid the product after stamping from adhering to the stamping The upper die is pressed on the punch to reduce the time of abnormal shutdown adjustments during the production process, and to avoid the risk of collision during the next stamping due to the product sticking to the stamping upper die, which affects the processing accuracy of the stamping device. In addition, by setting the main ventilation channel, branch ventilation channels and outlet air channels, the fan is used to blow air into the main ventilation channel and then blow it out from the inclined outlet air channel to clean the surface of the stamping lower die, avoiding the waste chips generated by the stamping falling on the surface of the stamping lower die and affecting the stamping process, which helps to produce products with higher surface quality and further improve the precision of the stamping process.

[0024] The present invention starts a driving motor to drive the driving gear to rotate, the driving gear drives the rotating base to rotate, the rotating base drives the transmission gear to rotate, and the rotation direction of the transmission gear is opposite to that of the rotating base. The transmission gear drives the rotating table to rotate, and the further rotation of the rotating base drives the stamping upper die assembly located above to rotate, and the rotation of the rotating table drives the stamping lower die assembly located above to rotate in the opposite direction, thereby realizing the mutual matching combination of multiple stamping upper die assemblies and multiple stamping lower die assemblies, thereby improving the diversity of stamping products. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the accompanying drawings.

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0028] Figure 3 It is a schematic diagram of the structure of the stamping lower die assembly in the present invention;

[0029] Figure 4 Schematic diagram of the structure of the limiting mechanism of Example 2 of the present invention;

[0030] Figure 5 Schematic diagram of the structure of the limiting mechanism of Example 3 of the present invention;

[0031] Figure 6 It is a schematic diagram of the process flow of the present invention.

[0032] In the figure: 1, stamping base; 11, stamping base body; 12, working chamber; 13, cylindrical slide; 14, mounting column; 15, sliding base; 16, rotating table; 17, driving motor; 18, driving gear; 19, transmission gear; 110, guide rod; 2, rotating base; 20, rotating base body; 21, rotating tooth groove; 22, mounting base; 23, moving base; 24, lifting cylinder; 25, connecting rod; 26, transmission tooth groove; 3, stamping upper die assembly; 3 1. Connecting plate; 32. Hydraulic cylinder; 33. Stamping upper die; 4. Limiting mechanism; 41. Limiting table; 42. Limiting groove; 43. Mounting hole; 44. Limiting block; 45. Spring; 46. Fan; 47. Main ventilation channel; 48. Air outlet channel; 49. Ventilation branch channel; 5. Stamping lower die assembly; 51. Mounting base; 52. Moving cavity; 53. Tooth plate; 54. Stamping lower die; 55. Sliding base; 56. Motion box; 57. Motion motor; 58. Motion gear. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] like Figure 1-Figure 5 As shown, it is a precision stamping device, which includes a stamping base 1 located on the production line, a rotating base 2 is connected inside the stamping base 1, and a plurality of stamping upper die assemblies 3 are connected to the top of the rotating base 2, and the plurality of stamping upper die assemblies 3 are symmetrically distributed around the axis center of the rotating base 2, and a plurality of stamping lower die assemblies 5 are connected to the top of the stamping base 1, and the plurality of stamping lower die assemblies 5 are also symmetrically distributed around the axis center of the rotating base 2, the stamping upper die assembly 3 and the stamping lower die assembly 5 are arranged correspondingly, and a limiting mechanism 4 is also connected to the rotating base 2, and the limiting mechanism 4 is located at the stamping upper die The stamping process is limited between the component 3 and the stamping lower die component 5. On the one hand, the raw material is limited to prevent it from shifting when placed, affecting the subsequent product processing. On the other hand, it is prevented from uneven force on the raw material and slight movement when the stamping upper die component 3 contacts the product and fails to fully extrude the raw material with the stamping lower die component 5, thereby improving the product consistency. By setting the limiting mechanism 4, the shape of the raw material is accurately limited. When the upper die contacts the raw material and fails to fully extrude the raw material with the lower die, although the raw material is subjected to force, it is blocked and cannot shift, so that the position of the product stamping pattern tends to be consistent.

[0035] Example 1

[0036] Further Figure 2As shown, the stamping base 1 comprises a stamping base body 11 fixedly mounted on the ground, a working chamber 12 is provided inside the stamping base body 11, a rotating base 2 is rotatably connected to the middle of the working chamber 12, a cylindrical slide 13 is provided outside the rotating base 2 and located in the working chamber 12, a sliding base 15 is slidably connected to the top surface of the cylindrical slide 13, and a rotating table 16 is connected to the top surface of the sliding base 15, wherein the sliding base 15 and the rotating table 16 are both in annular shape, and the rotating table 16 is adapted to the top of the stamping base body 11, and the rotating table 1 6 is sleeved on the outer side of the rotating base 2, and a plurality of mounting columns 14 are arranged between the cylindrical slide 13 and the rotating base 2, and a transmission gear 19 is rotatably connected to the top of the mounting column 14, and the plurality of mounting columns 14 are distributed at equal angles around the vertical axis of the rotating base 2, and a tooth groove is opened on the inner side surface of the sliding base 15, and the tooth groove is meshed with the transmission gear 19, and the transmission gear 19 is also meshed with the rotating base 2, and the sliding base 15 is driven to slide on the cylindrical slide 13 through the rotation of the transmission gear 19, thereby driving the rotating table 16 to rotate around the center of the rotating base 2. Furthermore, a plurality of guide rods 110 are provided at the outer edge of the top of the stamping base body 11, which cooperate with the limit mechanism 4 to guide the movement, and a drive motor 17 is fixedly installed on one side of the inner part of the working chamber 12, and the output shaft of the drive motor 17 is connected with a drive gear 18, and the drive gear 18 is connected to the rotating base 2 to drive the rotating base 2 to rotate, and the driving motor 17 is started to drive the drive gear 18 to rotate, and the driving gear 18 drives the rotating base 2 to rotate, and the rotating base 2 drives the transmission gear 19 to rotate, and the rotation direction of the transmission gear 19 is opposite to that of the rotating base 2, and the transmission gear 19 drives the rotating table 16 to rotate, and further the rotation of the rotating base 2 drives the stamping upper die assembly 3 located above to rotate, and the rotation of the rotating table 16 drives the stamping lower die assembly 5 located above to rotate in the opposite direction, thereby realizing the mutual matching processing of multiple stamping upper die assemblies 3 and multiple stamping lower die assemblies 5, thereby improving the diversity of stamping products.

[0037] Further Figure 2As shown, the rotating base 2 comprises a rotating base body 20 rotatably mounted in the working chamber 12, a rotating tooth groove 21 and a transmission tooth groove 26 are provided at the bottom of the rotating base body 20, wherein the rotating tooth groove 21 is meshed and connected with the driving gear 18, and the transmission tooth groove 26 is meshed and connected with the transmission gear 19 to transmit the motion, and a mounting base plate 22 is connected to the top of the rotating base body 20, a lifting cylinder 24 is arranged in the middle of the top of the mounting base plate 22, a moving base plate 23 is connected to the telescopic rod of the lifting cylinder 24, and the moving base plate 23 is located above the mounting base plate 22, and the moving base plate 22 is connected to the telescopic rod of the lifting cylinder 24. A plurality of connecting rods 25 are connected to the edge of the bottom surface, and the plurality of connecting rods 25 penetrate the mounting base plate 22 and cooperate with the limit mechanism 4 to drive the limit mechanism 4 to move up and down through the lifting cylinder 24, thereby realizing the limit in the stamping process, and the rotation of the rotating base body 20 will also drive the mounting base plate 22 to rotate, the mounting base plate 22 drives the movable base plate 23 to rotate, and the movable base plate 23 drives the limit mechanism 4 to rotate through the connecting rods 25, and the synchronous rotation ensures the position accuracy of the limit mechanism 4, and avoids the stamping upper die assembly 3 and the stamping lower die assembly 5 from failing to correspond to the limit mechanism 4 after rotation, resulting in stamping interference.

[0038] Further Figure 2 As shown, the above-mentioned stamping upper die assembly 3 includes a connecting plate 31 connected to the mounting base plate 22, and a hydraulic cylinder 32 is arranged on the top of the connecting plate 31. The telescopic rod of the hydraulic cylinder 32 passes through the connecting plate 31 and is connected to the stamping upper die 33. The stamping upper die 33 is driven to move by the hydraulic cylinder 32, thereby realizing stamping.

[0039] Further Figure 3 As shown, the above-mentioned stamping lower die assembly 5 includes a mounting base 51 connected to the top surface of the rotating table 16, a moving cavity 52 is opened inside the mounting base 51, a longitudinally distributed tooth plate 53 is installed above the moving cavity 52, and a sliding base 55 is slidably connected to one end of the moving cavity 52, a stamping lower die 54 is installed above the sliding base 55, and a clearance groove is opened at the bottom of the sliding base 55, the tooth plate 53 is arranged through the clearance groove, a moving box 56 is connected to the side of the stamping lower die 54 close to the rotating base body 20, a support plate is arranged inside the moving box 56, a moving motor 57 is installed on the support plate, and a moving gear 58 is rotatably connected to the bottom of the moving box 56, the moving motor 57 and the moving gear 58 are driven by a synchronous belt, the moving gear 58 penetrates the moving box 56 and is meshed with the tooth plate 53, the moving motor 57 is started to drive the moving gear 58 to rotate, and then the moving gear 58 moves on the tooth plate 53 to push the stamping lower die 54 to move, so as to realize convenient material unloading.

[0040] like Figure 2As shown, the above-mentioned limiting mechanism 4 includes a limiting truncated table 41 movably arranged on the outside of the rotating base body 20, and the limiting truncated table 41 is provided with a limiting groove 42 corresponding to the position of the stamping upper die 33 and the stamping lower die 54, the limiting groove 42 is adapted to the stamping upper die 33 and the stamping lower die 54, and the outer dimensions and shapes of the plurality of stamping upper dies 33 and the plurality of stamping lower dies 54 correspond to each other, and the outer shape of the raw material product is also adapted to the limiting groove 42.

[0041] Example 2

[0042] like Figure 4 As shown, mounting holes 43 are provided in the middle of the four side surfaces inside the limiting groove 42, and a limiting block 44 is slidably installed in the mounting hole 43. In order to enable the limiting block 44 to move elastically, a spring 45 is provided between the limiting block 44 and the bottom surface of the mounting hole 43. The elastic force of the spring 45 enables the limiting block 44 to retract under the extrusion of the stamping upper die 33. When the stamping upper die 33 rises after the die is opened, the limiting block 44 extends out to limit the product to prevent the stamped product from sticking to the stamping upper die 33. The other structures are exactly the same as those in Example 1.

[0043] Example 3

[0044] like Figure 5 As shown, a fan 46 is installed on the outer side of the limiting truncated table 41, and an annular main ventilation channel 47 is provided on the limiting truncated table 41, and the annular main ventilation channel 47 is located at the outer end of the limiting groove 42. A ventilation branch channel 49 is further provided around the limiting groove 42, and the ventilation branch channel 49 is connected to the main ventilation channel 47. A plurality of air outlet channels 48 are further provided on the limiting truncated table 41, and the plurality of air outlet channels 48 are respectively connected to the main ventilation channels 47 or the ventilation branch channels 49 at the corresponding positions, and the air outlet channels 48 are inclinedly arranged, and air is blown into the inside of the main ventilation channel 47 by the fan 46, and then blown out from the inclined air outlet channel 48 to clean the surface of the stamping lower die 54, so as to avoid the waste generated by the stamping falling on the surface of the stamping lower die 54 and affecting the stamping process, thereby ensuring the accuracy of the stamping and improving the precision of the stamping. The other structures are exactly the same as those in Example 2.

[0045] Example 4

[0046] like Figure 6 As shown, a stamping process, using the precision stamping device in the above embodiment 3, includes the following steps:

[0047] Step 1, stamping preparation: according to the shape of the stamping product, start the driving motor 17 to drive the driving gear 18 to rotate, the driving gear 18 drives the rotating base body 20 to rotate, the rotating base body 20 drives the multiple stamping upper dies 33 on the top to rotate, the synchronous rotating base body 20 drives the transmission gear 19 to rotate in the opposite direction, the transmission gear 19 drives the rotating table 16 to rotate, the rotating table 16 drives the multiple stamping lower dies 54 to rotate until the stamping upper die 33 and the stamping lower die 54 of the matching product correspond, stop the driving motor 17, start the lifting cylinder 24, drive the limit round table 41 to move downward and cover the stamping lower die 54;

[0048] Step 2: stamping: put the stamping raw material into the limiting groove 42, start the hydraulic cylinder 32, drive the stamping upper die 33 to move downward, and cooperate with the stamping lower die 54 to stamp the product into shape;

[0049] Step 3, product collection: After the stamping is completed, the lifting cylinder 24 is started to drive the limit table 41 to move upward and release the stamping lower die 54. After the release, the motion motor 57 is started to drive the motion gear 58 to rotate, and the motion gear 58 drives the stamping lower die 54 to move outward. After extending the set distance, the manipulator grabs and collects the product on the stamping lower die 54 to complete the stamping.

[0050] During the upward movement of the limiting table 41 in step three, multiple limiting blocks 44 elastically extend and contract to limit the product to prevent the product from sticking to the stamping upper die 33. After the robot grabs the product, the fan 46 is started to clean the surface of the stamping lower die 54 through multiple air outlet channels 48, and the next stamping is carried out after cleaning.

[0051] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0052] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A precision stamping device, comprising a stamping base (1) located on a production line, characterized in that: The stamping base (1) is internally connected to a rotating base (2), the top of the rotating base (2) is connected to a plurality of stamping upper die assemblies (3), the top of the stamping base (1) is connected to a plurality of stamping lower die assemblies (5), the stamping upper die assemblies (3) and the stamping lower die assemblies (5) are arranged correspondingly, the top of the rotating base (2) is connected to a limiting mechanism (4), and the limiting mechanism (4) is located between the stamping upper die assembly (3) and the stamping lower die assembly (5); The limiting mechanism (4) comprises a limiting truncated platform (41) movably arranged on the outside of the rotating base body (20), and the limiting truncated platform (41) is provided with limiting grooves (42) corresponding to the positions of the stamping upper die (33) and the stamping lower die (54).

2. A precision stamping device according to claim 1, characterized in that: The punching base (1) comprises a punching base body (11), a working chamber (12) is provided inside the punching base body (11), a rotating base (2) is rotatably connected to the middle of the working chamber (12), a cylindrical slide (13) is provided in the working chamber (12), a sliding base (15) is slidably connected to the top surface of the cylindrical slide (13), a rotating table (16) is connected to the top surface of the sliding base (15), the rotating table (16) is sleeved on the outer side of the rotating base (2), and the cylindrical slide (13) and the rotating base (15) are connected to each other. 2), a plurality of mounting columns (14) are arranged between the mounting columns (14), the top of the mounting columns (14) is rotatably connected with a transmission gear (19), the inner side surface of the sliding base (15) is provided with a tooth groove, the tooth groove is meshed with the transmission gear (19), the transmission gear (19) is meshed with the rotating base (2), a driving motor (17) is fixedly installed on one side inside the working chamber (12), the output shaft of the driving motor (17) is connected with a driving gear (18), and the driving gear (18) is meshed with the rotating base (2).

3. A precision stamping device according to claim 2, characterized in that: The rotating base (2) comprises a rotating base body (20), a rotating tooth groove (21) and a transmission tooth groove (26) are provided at the bottom of the rotating base body (20), the rotating tooth groove (21) is meshedly connected with a driving gear (18), and the transmission tooth groove (26) is meshedly connected with a transmission gear (19), a mounting base (22) is connected to the top of the rotating base body (20), a lifting cylinder (24) is arranged in the middle of the top of the mounting base (22), a movable base (23) is connected to the telescopic rod of the lifting cylinder (24), and a plurality of connecting rods (25) are connected to the bottom surface of the movable base (23), and the plurality of connecting rods (25) penetrate the mounting base (22) and are matched to be connected to a limiting mechanism (4).

4. A precision stamping device according to claim 3, characterized in that: The stamping upper die assembly (3) comprises a connecting plate (31) connected to a mounting base plate (22), a hydraulic cylinder (32) being arranged on the top of the connecting plate (31), and a telescopic rod of the hydraulic cylinder (32) passing through the connecting plate (31) and connected to the stamping upper die (33).

5. A precision stamping device according to claim 4, characterized in that: The stamping lower die assembly (5) comprises a mounting base (51), a movable cavity (52) is provided inside the mounting base (51), a tooth plate (53) is installed above the movable cavity (52), one end of the movable cavity (52) is slidably connected to a sliding base (55), a stamping lower die (54) is installed above the sliding base (55), one side of the stamping lower die (54) is connected to a moving box (56), a support plate is provided inside the moving box (56), a moving motor (57) is installed on the support plate, a moving gear (58) is rotatably connected to the bottom of the moving box (56), the moving motor (57) and the moving gear (58) are driven by a synchronous belt, and the moving gear (58) is meshed with the tooth plate (53).

6. A precision stamping device according to claim 5, characterized in that: The middle parts of the four side surfaces of the limiting groove (42) are all provided with mounting holes (43), a limiting block (44) is slidably mounted in the mounting hole (43), and a spring (45) is arranged between the limiting block (44) and the bottom surface of the mounting hole (43).

7. A precision stamping device according to claim 6, characterized in that: A fan (46) is installed outside the limiting truncated platform (41); a ring-shaped main ventilation channel (47) is provided on the limiting truncated platform (41); ventilation branch channels (49) are provided around the limiting groove (42); the ventilation branch channels (49) are connected to the main ventilation channel (47); a plurality of air outlet channels (48) are provided on the limiting truncated platform (41); the plurality of air outlet channels (48) are respectively connected to the main ventilation channel (47) or the ventilation branch channels (49) at corresponding positions; and the air outlet channels (48) are arranged in an inclined manner.

8. A stamping process, characterized in that: The use of the precision stamping device as claimed in claim 7 comprises the following steps: Step 1, stamping preparation: according to the shape of the stamping product, start the driving motor (17) to drive the driving gear (18) to rotate, the driving gear (18) drives the rotating base body (20) to rotate, the rotating base body (20) drives the multiple stamping upper dies (33) on the top to rotate, the synchronous rotating base body (20) drives the transmission gear (19) to rotate in the opposite direction, the transmission gear (19) drives the rotating table (16) to rotate, the rotating table (16) drives the multiple stamping lower dies (54) to rotate until the stamping upper die (33) and the stamping lower die (54) of the matching product correspond, stop the driving motor (17), start the lifting cylinder (24), drive the limit round table (41) to move downward and cover the stamping lower die (54); Step 2: stamping: placing the stamping raw material into the limiting groove (42), starting the hydraulic cylinder (32), driving the stamping upper die (33) to move downward, and cooperating with the stamping lower die (54) to stamp the product into shape; Step 3, product collection: After the stamping is completed, the lifting cylinder (24) is started to drive the limit round table (41) to move upward and release the stamping lower die (54). After the release, the motion motor (57) is started to drive the motion gear (58) to rotate, and the motion gear (58) drives the stamping lower die (54) to move outward. After extending a set distance, the manipulator grabs the product on the stamping lower die (54) and collects it, completing the stamping.

9. A stamping process according to claim 8, characterized in that: During the upward movement of the limiting truncated table (41) in step three, the plurality of limiting blocks (44) are elastically extended and retracted to limit the product, and after the robot grasps the product, the fan (46) is started to clean the surface of the stamping lower die (54) through the plurality of air outlet channels (48), and the next stamping is performed after cleaning.

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