Punch forming device for precision hardware

Abstract

The punch forming device comprises a supporting plate, an air chamber is fixedly installed on the lower surface of the supporting plate, a piston is slidably installed in the air chamber, a jacking column is fixedly installed on the lower surface of the piston, the top of the air chamber communicates with a guide pipe, an air bag is arranged in a workbench, and the air bag communicates with the guide pipe. A demolding plate is arranged above the air bag, an ejector rod is fixedly installed on the upper surface of the demolding plate, storage grooves are formed in the two sides of the top of the ejector rod, telescopic rods matched with the storage grooves are hinged to the bottom ends of the storage grooves, and a reset spring is fixedly installed between the two telescopic rods. The air bag expands to drive the demolding plate to move upwards, so that the ejection rod is driven to move upwards through the demolding plate, after the ejection rod moves upwards, a formed workpiece is ejected, the workpiece is conveniently taken out of a mold, when the ejection rod continues to move upwards, the reset spring opens the two telescopic rods towards the two sides, the supporting stability is enhanced, and the situation that the workpiece is uneven in stress in the ejection process is prevented; and the risk of deformation or damage is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of hardware stamping, and in particular relates to a stamping forming device for precision hardware. Background Art

[0002] Hardware refers to tools made by processing and casting metals such as gold, silver, copper, iron, and tin, which are used to fix things, process things, and decorate. The production and manufacturing of hardware are all carried out in large quantities through stamping machines. Since the stamping machine is equipped with an upper mold and a lower mold, the manufacturing precision of hardware is extremely high. Plate-shaped precision hardware is more widely used.

[0003] In the prior art, a Chinese invention patent with patent number CN111014401A discloses a stamping forming device for precision hardware, comprising a workbench, a plurality of support rods are fixedly connected to the upper end of the workbench, the upper ends of the plurality of support rods are commonly fixedly connected to a top plate, a hydraulic cylinder is installed on the top plate, the telescopic end of the hydraulic cylinder passes through the top plate and is fixed with a hardware upper die, a hardware lower die corresponding to the hardware upper die is provided at the upper end of the workbench, a movable transverse moving mechanism is installed at the lower end of one side of the top plate, a sliding mechanism is provided at the lower end of the other side of the top plate, the transverse moving mechanism and the sliding mechanism are both connected with a connecting arm, a device rod is fixed to the lower end of the connecting arm, a longitudinal moving mechanism is provided on the side wall of the device rod, the longitudinal moving mechanism is connected with a device plate, a strip cavity is provided in the device plate, and a transmission mechanism is provided in the strip cavity.

[0004] In the above-mentioned prior art, although the whole piece of iron sheet can be clamped quickly and the material can be fed automatically, after the punching machine stamps the hardware, the product will remain in the mold and need to be peeled off through manual intervention, which is time-consuming and labor-intensive, resulting in a slow production rate and low efficiency of the hardware. Summary of the invention

[0005] The present invention provides a stamping forming device for precision hardware to solve the technical problem that after the hardware is stamped and formed, the product will remain in the mold and need to be peeled off through manual intervention, which is time-consuming and labor-intensive, resulting in a slow production rate and low efficiency of the hardware.

[0006] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a stamping forming device for precision hardware, comprising a workbench and a support plate, an air chamber is fixedly installed on the lower surface of the support plate, a piston is slidably installed inside the air chamber, a top column penetrating the bottom of the air chamber is fixedly installed on the lower surface of the piston, and a conduit is connected to the top of the air chamber. The workbench is provided with an installation cavity inside, and an air bag is provided inside the installation cavity. The air bag is connected with the catheter, and the air in the air bag and the air chamber is constant. A stripping plate sliding inside the installation cavity is arranged above the airbag, a push rod is fixedly installed on the upper surface of the stripping plate, storage grooves are opened on both sides of the top of the push rod, a telescopic rod adapted thereto is hinged at the bottom end of the storage groove, and a return spring is fixedly installed between the two telescopic rods.

[0007] Optionally, third slide grooves are opened on both sides of the installation cavity, the stripping plate is slidably installed inside the third slide grooves, symmetrical side panels are fixedly installed on the lower surface of the installation cavity, and the airbag is fixedly installed between the two side panels.

[0008] Optionally, a column is fixedly installed on the upper surface of the workbench, the support plate is fixedly installed on the top of the column, and a hydraulic cylinder is fixedly installed on the top of the support plate, a pressure plate is fixedly installed on the output end of the hydraulic cylinder, a male mold is fixedly installed on the lower surface of the pressure plate, and a female mold is arranged on the upper surface of the workbench.

[0009] Optionally, a plurality of second slide grooves are provided inside the male mold, a pressure block is slidably installed inside the second slide groove, a first spring is fixedly installed between the upper surface of the pressure block and the inner cavity of the second slide groove, a limiting groove is provided on the lower surface of the male mold and located on the outer side of the bottom end of the second slide groove, and a limiting block used in conjunction with the limiting groove is fixedly installed on the lower surface of the pressure block.

[0010] Optionally, a first mounting plate is fixedly mounted on one side of the workbench, and a leg is fixedly mounted on the bottom of the workbench, a first cylinder is fixedly mounted on the side of the first mounting plate, and a push plate is fixedly mounted on the output end of the first cylinder.

[0011] Optionally, a material box is fixedly installed inside the workbench, a second mounting plate is fixedly installed on one side of the leg, two symmetrically arranged second cylinders are fixedly installed on the upper surface of the second mounting plate, a top plate is slidably installed inside the material box, a workpiece used in conjunction with a push plate is placed between the upper surface of the top plate and the inner cavity of the material box, the output end of the second cylinder is fixed to the lower surface of the top plate, and a gravity sensor is fixedly installed on the lower surface of the top plate.

[0012] Optionally, a first sliding groove is provided on one side surface of the column, a sliding block is slidably installed inside the first sliding groove, and the sliding block is fixed to one side surface of the pressure plate.

[0013] Optionally, two groups of symmetrical guide holes are opened on the upper surface of the workbench and located on both sides of the concave mold, and guide columns corresponding to the guide holes are fixedly installed on the lower surface of the pressure plate, a fixed block is fixedly installed in the middle of the guide column, a damping block is arranged on the lower surface of the fixed block, and a second spring penetrated by the guide column is fixedly installed on the lower surface of the damping block.

[0014] Optionally, a fixing plate is fixedly installed on the back side of the workbench, a third cylinder is fixedly installed on the front surface of the fixing plate, a receiving plate is fixedly installed on the output end of the third cylinder, an electromagnet is fixedly installed on the front surface of the receiving plate, and a counter is fixedly installed on the top of the receiving plate.

[0015] Optionally, a discharge trough is provided on the upper surface of the workbench and in front of the concave mold, and a conveying device is provided in front of the workbench, and a collection box used in conjunction with the discharge trough is provided on the upper surface of the conveying device.

[0016] In summary, compared with the prior art, the stamping forming device for precision hardware provided by the present invention has the following beneficial effects: 1. In the present invention, after the workpiece is stamped, the pressing plate drives the convex die to move upward, thereby squeezing the ejector column, so that the ejector column drives the piston to slide upward inside the air chamber, so that the gas in the air chamber enters the inside of the airbag through the conduit, thereby expanding the airbag, and the expansion of the airbag drives the stripping plate to move upward, thereby driving the ejector rod to move upward through the stripping plate. After the ejector rod moves upward, the formed workpiece is lifted up, and when it continues to move upward, the return spring opens the two telescopic rods to both sides, thereby enhancing the stability of the support and preventing the workpiece from being subjected to uneven force during the ejection process, thereby increasing the risk of deformation or damage; 2. In the present invention, when the pressing plate is pressed downward, the guide column is inserted into the guide hole before the stamping is performed, so that the stability during stamping is further enhanced. At the same time, the lower end of the second spring contacts the upper surface of the workbench, so that the second spring is compressed to perform stamping shock absorption, thereby relieving and reducing the impact of stress on the mold, delaying the damage to the mold, improving the processing accuracy, extending the service life, and reducing noise; 3. In the present invention, after pushing a workpiece, the first cylinder is reset, and after the gravity sensor is sensed, the second cylinder pushes the top plate up a step distance, and pushes the next workpiece upward, which is convenient for the next feeding work. The reciprocating work realizes the automatic loading function of the workpiece, and the operator does not need to manually load the material, which reduces the labor intensity and improves the work efficiency; 4. In the present invention, an electromagnet is fixedly installed on the front surface of the receiving plate to absorb the workpiece and to continue to transport the ejected formed workpiece to the next process. A counter is fixedly installed on the top of the receiving plate to record the number of stamped workpieces, which is convenient for subsequent packaging and processing. Manual operation by staff is not required, which reduces labor intensity and error rate. 5. In the present invention, when the workpiece is transported to the top of the discharge chute by the receiving plate, the electromagnet is powered off, so that the workpiece falls into the discharge chute, then slides into the collection box, and is transported to the next process. The discharge chute is tilted to provide a buffer when the workpiece enters the collection box. When the workpiece falls into the collection box, due to the action of gravity and the impact of free fall, it may collide with the bottom of the collection box or existing workpieces, resulting in bruises or deformation, thereby affecting product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the material box structure of the present invention; Figure 3 It is a side view structural schematic diagram of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the present invention; Figure 5 It is a schematic diagram of the structure of the male mold of the present invention; Figure 6 For the present invention Figure 4 The enlarged structural diagram at A in the middle; Figure 7 For the present invention Figure 4 The enlarged structural diagram at B in the middle; Figure 8 For the present invention Figure 1 The enlarged structural diagram at C in the middle; Fig. 9 It is a schematic diagram of the top rod structure of the present invention; In the figure: 1, workbench; 2, outrigger; 3, first mounting plate; 4, first cylinder; 5, push plate; 6, workpiece; 7, material box; 8, second mounting plate; 9, second cylinder; 10, top plate; 11, gravity sensor; 12, column; 13, support plate; 14, hydraulic cylinder; 15, first slide; 16, slider; 17, pressure plate; 18, male mold; 19, second slide; 20, pressure block; 21, first spring; 22, limit groove; 23, limit block; 24, female mold; 25, Guide hole; 26, guide column; 27, fixed block; 28, second spring; 29, air chamber; 30, piston; 31, push column; 32, guide tube; 33, installation cavity; 34, third slide groove; 35, stripping plate; 36, side plate; 37, air bag; 38, push rod; 39, storage groove; 40, telescopic rod; 41, return spring; 43, fixed plate; 44, third cylinder; 45, receiving plate; 46, electromagnet; 47, counter; 48, discharge chute; 49, conveying device; 50, collection box. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Embodiment 1:

[0019] refer to Figure 1 A stamping forming device for precision hardware includes a workbench 1, a leg 2 is fixedly installed on the lower surface of the workbench 1, and a first mounting plate 3 is fixedly installed on one side of the workbench 1, the top of the first mounting plate 3 is higher than the workbench 1, and a first cylinder 4 is fixedly installed on the side of the first mounting plate 3 close to the workbench 1, and a U-shaped push plate 5 is fixedly installed on the output end of the first cylinder 4. The U-shaped setting of the push plate 5 allows the hardware plates to be clamped on both sides to prevent the hardware plates from being offset when being pushed forward, thereby reducing the stamping efficiency.

[0020] refer to Figure 1 and Figure 2 A material box 7 is fixedly installed inside the workbench 1, a second mounting plate 8 is fixedly installed on one side of the leg 2, two symmetrically arranged second cylinders 9 are fixedly installed on the upper surface of the second mounting plate 8, a top plate 10 is slidably installed inside the material box 7, a workpiece 6 used in conjunction with the push plate 5 is placed between the upper surface of the top plate 10 and the inner cavity of the material box 7, the output end of the second cylinder 9 passes through the bottom of the material box 7, and the output end of the second cylinder 9 is slidably matched with the material box 7 and fixed to the lower surface of the top plate 10, a through groove is provided at the bottom of the material box 7, and a gravity sensor 11 is fixedly installed on the lower surface of the top plate 10.

[0021] Furthermore, when in use, the lower surface of the top workpiece 6 is flush with the upper surface of the workbench 1, which is convenient for the push plate 5 to push the workpiece 6 forward. When one workpiece 6 is pushed forward, the first cylinder 4 is reset. After the gravity sensor 11 senses, the second cylinder 9 pushes the top plate 10 up a step distance, and pushes the next workpiece 6 upward, which is convenient for the next feeding work. The reciprocating operation realizes the automatic loading function of the workpiece 6, and there is no need for the operator to manually load the material, which reduces the labor intensity and improves the work efficiency. Embodiment 2:

[0022] refer to Figure 1 and Figure 3 A column 12 is fixedly installed on the upper surface of the workbench 1, a support plate 13 is fixedly installed on the top of the column 12, a hydraulic cylinder 14 is fixedly installed on the top of the support plate 13, the output end of the hydraulic cylinder 14 passes through the support plate 13, and the output end of the hydraulic cylinder 14 is slidably matched with the support plate 13 and fixedly installed with a pressing plate 17, a convex mold 18 is fixedly installed on the lower surface of the pressing plate 17, and a concave mold 24 is provided on the upper surface of the workbench 1.

[0023] Furthermore, when in use, the hydraulic cylinder 14 drives the pressing plate 17 to move downward, thereby moving the male mold 18 downward, and then closing the male mold 18 and the female mold 24 to punch the workpiece 6 into a specified shape.

[0024] refer to Figure 3 and Figure 4 A first slide groove 15 is provided on one side surface of the column 12 , and a slider 16 is slidably installed inside the first slide groove 15 , and the slider 16 is fixed to one side surface of the pressing plate 17 .

[0025] Furthermore, during stamping, the pressing plate 17 slides inside the first sliding groove 15 via the slider 16, thereby improving the stability during stamping, thereby improving the stamping accuracy and improving the product quality.

[0026] refer to Figure 3 and Figure 4 Two groups of symmetrical guide holes 25 are provided on the upper surface of the workbench 1 and on both sides of the concave mold 24. Guide columns 26 corresponding to the guide holes 25 are fixedly installed on the lower surface of the pressure plate 17. A fixed block 27 is fixedly installed in the middle of the guide column 26. A damping block is arranged on the lower surface of the fixed block 27. A second spring 28 penetrated by the guide column 26 is fixedly installed on the lower surface of the damping block.

[0027] Furthermore, when the pressure plate 17 is punched downward, the guide column 26 is inserted into the guide hole 25 for punching, which further enhances the stability during punching. At the same time, the lower end of the second spring 28 contacts the upper surface of the workbench 1, so that the second spring 28 is compressed to perform punching shock absorption, thereby alleviating and reducing the impact of stress on the mold, delaying damage to the mold, improving processing accuracy, extending service life, and reducing noise.

[0028] refer to Figure 5 A plurality of second slide grooves 19 are provided inside the male mold 18, a pressure block 20 is slidably installed inside the second slide groove 19, a first spring 21 is fixedly installed between the upper surface of the pressure block 20 and the inner cavity of the second slide groove 19, a limiting groove 22 is provided on the lower surface of the male mold 18 and located outside the bottom end of the second slide groove 19, and a limiting block 23 used in conjunction with the limiting groove 22 is fixedly installed on the lower surface of the pressure block 20.

[0029] Furthermore, when stamping, the limit block 23 first contacts the upper surface of the workpiece 6, and then the limit block 23 is pressed into the limit groove 22, and then the workpiece 6 is stamped, which does not affect the appearance quality of the workpiece 6 after stamping. The use of the limit block 23 prevents the pressure block 20 from being completely pressed into the second slide groove 19 when the workpiece 6 is stamped. After the workpiece 6 is stamped, the first spring 21 drives the pressure block 20 and the limit block 23 to pop out, leaving the workpiece 6 in the concave mold 24, which is convenient for subsequent demolding.

[0030] refer to Figure 4 and Figure 6 An air chamber 29 is fixedly installed on the lower surface of the support plate 13, and a piston 30 is slidably installed inside the air chamber 29. A top column 31 that passes through the bottom of the air chamber 29 is fixedly installed on the lower surface of the piston 30. The top column 31 slides with the air chamber 29, and the top of the air chamber 29 is connected to a conduit 32 that passes through the support plate 13.

[0031] Furthermore, during use, when the workpiece 6 is stamped, the pressing plate 17 drives the male mold 18 to move upward, thereby squeezing the push column 31, so that the push column 31 drives the piston 30 to slide upward inside the air chamber 29, thereby discharging the gas in the air chamber 29 through the conduit 32.

[0032] refer to Figure 4 and Figure 7 An installation cavity 33 is provided inside the workbench 1, and two symmetrical side panels 36 are fixedly installed on the lower surface of the installation cavity 33. An air bag 37 is fixedly installed between the side panels 36. The air bag 37 is connected to the conduit 32, and the air in the air bag 37 and the air chamber 29 is constant.

[0033] Furthermore, during use, when the air in the air chamber 29 is exhausted, it enters the interior of the airbag 37 through the conduit 32, thereby expanding the airbag 37. Due to the limitation of the side panels 36, the airbag 37 expands in the vertical direction.

[0034] refer to Figure 7 A third slide groove 34 is provided on both sides of the mounting cavity 33, and a stripper plate 35 is slidably installed between the two third slide grooves 34. During stamping, the stripper plate 35 is located at the bottom of the third slide groove 34, and the stripper plate 35 is limited by the third slide groove 34 to prevent the lower surface of the workpiece 6 from deforming and partially entering the pores, causing defects on the lower surface of the workpiece 6 and affecting the product quality. Two ejector rods 38 that pass through the bottom of the concave mold 24 are fixedly installed on the upper surface of the stripper plate 35. The ejector rods 38 are symmetrically arranged, and there are only two ejector rods 38, which reduces the number of openings at the bottom of the concave mold 24. If there are too many ejector rods 38, there will be more gaps between the ejector rods 38 and the holes, which will cause leakage.

[0035] refer to Fig. 9 Symmetrical receiving grooves 39 are provided on both sides of the top of the top rod 38 below the workpiece 6. The bottom ends of the receiving grooves 39 are hinged with telescopic rods 40 adapted thereto, and a return spring 41 is fixedly installed between the two telescopic rods 40.

[0036] Furthermore, when the ejector pin 38 is not ejected, due to the limitation of the hole, the telescopic rod 40 is received in the receiving groove 39, and at the same time, the top of the telescopic rod 40 leaks out of the bottom of the concave mold 24, and the workpiece 6 is placed in the concave mold 24 and is located at the top of the telescopic rod 40. When stamping, the telescopic rod 40 is pressed into the opening of the concave mold 24 and then stamping is performed. After the stamping is completed, the airbag 37 expands and drives the stripper plate 35 to move upward, thereby driving the ejector pin 38 to move upward through the stripper plate 35. After the ejector pin 38 moves upward, , the formed workpiece 6 is lifted up, and when it continues to move upward, the reset spring 41 opens the two telescopic rods 40 to both sides to enhance the stability of the support and prevent the workpiece 6 from being subjected to uneven force during the ejection process, thereby increasing the risk of deformation or damage. After the workpiece 6 is ejected and removed, the ejector rod 38 moves down and resets, and then the telescopic rod 40 is pressed into the storage groove 39 for storage. The bottom of the output end of the telescopic rod 40 is rounded to prevent the telescopic rod 40 from being stuck outside the hole of the concave mold 24 when being stored. Embodiment three:

[0037] refer to Figure 1 , Figure 3 and Figure 8 A fixing plate 43 is fixedly installed on the back side of the workbench 1, a third cylinder 44 is fixedly installed on the front surface of the fixing plate 43, a receiving plate 45 is fixedly installed on the output end of the third cylinder 44, an electromagnet 46 is fixedly installed on the front surface of the receiving plate 45 for adsorbing the workpiece 6 and for continuing to transport the ejected formed workpiece 6 to the next process, a counter 47 is fixedly installed on the top of the receiving plate 45 for recording the number of stamped workpieces 6, which is convenient for subsequent packaging and processing, and does not require manual operation by the staff, thereby reducing labor intensity and error rate.

[0038] refer to Figure 1 A discharge chute 48 is provided on the upper surface of the workbench 1 and in front of the concave mold 24. A conveying device 49 is provided in front of the workbench 1. The conveying device 49 is a prior art and is not disclosed in detail herein. A collecting box 50 used in conjunction with the discharge chute 48 is provided on the upper surface of the conveying device 49.

[0039] Furthermore, when the receiving plate 45 conveys the workpiece 6 to the top of the discharge chute 48, the electromagnet 46 is powered off, causing the workpiece 6 to fall into the discharge chute 48, then slide into the collection box 50, and be conveyed to the next process. The discharge chute 48 is tilted to provide a buffer when the workpiece 6 enters the collection box 50. When the workpiece 6 falls into the collection box 50, due to the effect of gravity and the impact of free fall, it may collide with the bottom of the collection box 50 or the existing workpiece 6, resulting in damage or deformation, thus affecting product quality.

[0040] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0041] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0042] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A stamping forming device for precision hardware, characterized in that: The invention comprises a workbench (1) and a support plate (13), wherein an air chamber (29) is fixedly mounted on the lower surface of the support plate (13), a piston (30) is slidably mounted inside the air chamber (29), a top column (31) penetrating the bottom of the air chamber (29) is fixedly mounted on the lower surface of the piston (30), and a conduit (32) is connected to the top of the air chamber (29). The workbench (1) is provided with a mounting cavity (33) inside, and an air bag (37) is provided inside the mounting cavity (33). The air bag (37) is connected with the conduit (32), and the air in the air bag (37) and the air chamber (29) is constant. A stripping plate (35) is arranged above the airbag (37) and slides inside the installation cavity (33). A push rod (38) is fixedly installed on the upper surface of the stripping plate (35). Receiving grooves (39) are provided on both sides of the top of the push rod (38). A telescopic rod (40) adapted to the receiving groove (39) is hingedly connected at the bottom end of the receiving groove (39). A return spring (41) is fixedly installed between the two telescopic rods (40).

2. A stamping forming device for precision hardware according to claim 1, characterized in that: The installation cavity (33) is provided with third slide grooves (34) on both sides, the stripping plate (35) is slidably installed inside the third slide grooves (34), the lower surface of the installation cavity (33) is fixedly installed with symmetrical side plates (36), and the airbag (37) is fixedly installed between the two side plates (36).

3. The stamping forming device for precision hardware according to claim 1, characterized in that: A column (12) is fixedly mounted on the upper surface of the workbench (1), the support plate (13) is fixedly mounted on the top of the column (12), and a hydraulic cylinder (14) is fixedly mounted on the top of the support plate (13), a pressing plate (17) is fixedly mounted on the output end of the hydraulic cylinder (14), a male mold (18) is fixedly mounted on the lower surface of the pressing plate (17), and a female mold (24) is provided on the upper surface of the workbench (1).

4. A stamping and forming device for precision hardware according to claim 3, characterized in that: A plurality of second slide grooves (19) are provided inside the male mold (18), a pressure block (20) is slidably installed inside the second slide groove (19), a first spring (21) is fixedly installed between the upper surface of the pressure block (20) and the inner cavity of the second slide groove (19), a limiting groove (22) is provided on the lower surface of the male mold (18) and located outside the bottom end of the second slide groove (19), and a limiting block (23) used in conjunction with the limiting groove (22) is fixedly installed on the lower surface of the pressure block (20).

5. The stamping forming device for precision hardware according to claim 3, characterized in that: A first mounting plate (3) is fixedly mounted on one side of the workbench (1), and a support leg (2) is fixedly mounted on the bottom of the workbench (1); a first cylinder (4) is fixedly mounted on the side of the first mounting plate (3), and a push plate (5) is fixedly mounted on the output end of the first cylinder (4).

6. A stamping and forming device for precision hardware according to claim 5, characterized in that: A material box (7) is fixedly installed inside the workbench (1), a second mounting plate (8) is fixedly installed on one side of the support leg (2), two symmetrically arranged second cylinders (9) are fixedly installed on the upper surface of the second mounting plate (8), a top plate (10) is slidably installed inside the material box (7), a workpiece (6) used in conjunction with a push plate (5) is placed between the upper surface of the top plate (10) and the inner cavity of the material box (7), the output end of the second cylinder (9) is fixed to the lower surface of the top plate (10), and a gravity sensor (11) is fixedly installed on the lower surface of the top plate (10).

7. The stamping forming device for precision hardware according to claim 3, characterized in that: A first sliding groove (15) is provided on one side surface of the column (12), a sliding block (16) is slidably installed inside the first sliding groove (15), and the sliding block (16) is fixed to one side surface of the pressing plate (17).

8. The stamping forming device for precision hardware according to claim 3, characterized in that: Two groups of symmetrical guide holes (25) are provided on the upper surface of the workbench (1) and on both sides of the concave mold (24); a guide column (26) corresponding to the guide hole (25) is fixedly installed on the lower surface of the pressure plate (17); a fixed block (27) is fixedly installed in the middle of the guide column (26); a damping block is arranged on the lower surface of the fixed block (27); and a second spring (28) penetrated by the guide column (26) is fixedly installed on the lower surface of the damping block.

9. A stamping forming device for precision hardware according to claim 8, characterized in that: A fixing plate (43) is fixedly mounted on the back side of the workbench (1), a third cylinder (44) is fixedly mounted on the front surface of the fixing plate (43), a receiving plate (45) is fixedly mounted on the output end of the third cylinder (44), an electromagnet (46) is fixedly mounted on the front surface of the receiving plate (45), and a counter (47) is fixedly mounted on the top end of the receiving plate (45).

10. A stamping and forming device for precision hardware according to claim 9, characterized in that: A discharge trough (48) is provided on the upper surface of the workbench (1) and in front of the concave mold (24), and a conveying device (49) is provided in front of the workbench (1), and a collection box (50) used in conjunction with the discharge trough (48) is provided on the upper surface of the conveying device (49).

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