Precise press machine for hardware machining

Abstract

The invention relates to the technical field of press machines, and discloses a precision press machine for hardware machining. The reciprocating driving mechanism comprises a crankshaft driving mechanism and a connecting rod sliding block mechanism; the stroke type pressure regulating mechanism comprises a limiting connecting assembly, a stroke type damping assembly and a corner regulating assembly; the multi-process pressure head mechanism comprises an area damping contact assembly and a multi-process pressure head assembly; the stroke type pressure adjusting mechanism is arranged between the reciprocating driving mechanism and the pressing head, the pressure transmitted to the pressing head by the reciprocating driving mechanism can be adjusted through the stroke type pressure adjusting mechanism, and therefore the pressure can be adjusted according to the machining requirements of different hardware pieces, and meanwhile in the multi-working-procedure one-time punching process, the punching efficiency can be greatly improved. Stroke type pressure transmission with the same pressure is formed through the stroke type pressure adjusting mechanism, it can be guaranteed that a machined area is not subjected to larger pressure, multiple machining procedures can be mixed into one machining procedure, and the machining efficiency can be effectively improved.

Description

Technical Field

[0001] This invention relates to the field of press technology, and more specifically, to a precision press for machining hardware parts. Background Technology

[0002] A press (including punch presses and hydraulic presses) is a sophisticated, general-purpose press. It is characterized by its wide range of applications and high production efficiency. Presses can be widely used in processes such as cutting, punching, blanking, bending, riveting, and forming. They process metal parts by applying strong pressure to metal blanks, causing plastic deformation and fracture. In a mechanical press, an electric motor drives a large pulley (usually also serving as a flywheel) via a V-belt. This pulley, through a gear pair and clutch, drives a crank-slider mechanism, causing the slide and punch to move linearly downwards.

[0003] However, the current crank-slider presses have fixed and difficult-to-adjust processing pressures. The frictional torque transmitted from the belt to the flywheel is converted into the driving force that drives the slider and the press head downward. This driving force is the pressure applied to the workpiece. Moreover, for some workpieces that require sequential stamping processes, it is not possible to complete the process in one stamping. This can easily lead to over-extrusion of the contact parts that were stamped first, resulting in low working efficiency of the press. Summary of the Invention

[0004] The purpose of this invention is to provide a precision press for processing hardware parts in order to solve the above-mentioned problems.

[0005] This invention provides a precision press for machining hardware parts, comprising: frame; A reciprocating drive mechanism, comprising a crankshaft drive mechanism mounted on a frame and a connecting rod-slider mechanism connected between the frame and the crankshaft drive mechanism, wherein one end of the connecting rod-slider mechanism is movably connected to the crankshaft drive mechanism and the other end is slidably connected to the frame; A stroke-type pressure regulating mechanism includes a limit connection component detachably connected to the other end of a connecting rod slider mechanism, a stroke-type damping component movably connected to the limit connection component, and an angle adjustment component connected between the limit connection component and the stroke-type damping component. The angle adjustment component is used to drive the stroke-type damping component to rotate around its own central axis by a set angle. A multi-stage pressure head mechanism includes a region damping contact component slidably connected to the other end of a connecting rod slider mechanism and a multi-stage pressure head component connected to the region damping contact component. The region damping contact component is coaxially arranged with the stroke damping component. When the region damping contact component contacts different regions on the stroke damping component, a set value of frictional force is generated.

[0006] As a further optimization of the present invention, the frame is C-shaped in general, and the upper part of the frame is provided with a vertical slide groove. A fixed platform is provided on the frame at the lower opening of the vertical slide groove, and a pressure-bearing platform is detachably connected to the fixed platform.

[0007] As a further optimization of the present invention, the crankshaft drive mechanism includes a servo drive assembly fixedly connected to the frame and a crankshaft transmission assembly movably connected to the frame, wherein the output end of the servo drive assembly is connected to the input end of the crankshaft transmission assembly. The servo drive assembly includes a servo motor fixedly connected to the frame and a synchronous pulley fixedly connected to the output shaft of the servo motor. The crankshaft transmission assembly includes an eccentric shaft movably connected to the frame and a second synchronous pulley connected to one end of the eccentric shaft. A first synchronous belt connects the second synchronous pulley to the first synchronous pulley.

[0008] As a further optimization of the present invention, the linkage-slider mechanism includes a linkage movably connected to an eccentric shaft, a ball joint fixedly connected to the other end of the linkage, and a slider slidably connected to the frame, wherein the other end of the ball joint is ball-jointed with the slider.

[0009] As a further optimization of the present invention, the limiting connection assembly includes a mounting block, a plurality of through holes 1 provided on the mounting block, and a connecting screw inserted into the through holes 1. The slider is provided with a plurality of screw holes that cooperate with the through holes 1, and the connecting screw is threadedly connected to the corresponding screw holes.

[0010] As a further optimization of the present invention, the stroke-type damping assembly includes a fixed shaft fixedly connected to the mounting block, a movable cylinder movably connected to the fixed shaft, and a plurality of damping strips II fixedly connected to the outer wall of the movable cylinder. The plurality of damping strips II are evenly distributed on the outer wall of the movable cylinder, and the friction coefficients of the plurality of damping strips II are all different.

[0011] As a further optimization of the present invention, the angle adjustment assembly includes a servo motor two fixedly connected to the mounting block, a synchronous wheel three fixedly connected to the output shaft end of the servo motor two, a synchronous wheel four fixedly connected to the outer wall of the movable cylinder, and a synchronous belt two connected between the synchronous wheel three and the synchronous wheel four. The length of the movable cylinder is greater than the length of the damping strip two.

[0012] As a further optimization of the present invention, the regional damping contact assembly includes a connecting plate, a plurality of limiting slide rods fixedly connected to the connecting plate, a connecting cylinder fixedly connected to the limiting slide rods, and a plurality of damping strips fixedly connected to the inner wall of the connecting cylinder. The connecting plate has through holes that cooperate with the connecting cylinder. The plurality of damping strips are evenly distributed on the inner wall of the connecting cylinder. The plurality of limiting slide rods are all slidably connected to the slider. The connecting cylinder and the movable cylinder are coaxially arranged.

[0013] As a further optimization of the present invention, the multi-process pressure head assembly includes a second connecting plate fixedly connected to the other end of the connecting cylinder, a plurality of primary pressure blocks fixedly connected to the bottom of the second connecting plate, a second through hole provided on the second connecting plate, a spring fixedly connected to the second connecting plate, a fixed plate fixedly connected to the other end of the spring, and a secondary pressure block fixedly connected to the fixed plate, wherein the other end of the secondary pressure block passes through the second through hole.

[0014] As a further optimization of the present invention, a reset mechanism is also included. The reset mechanism includes a linear push rod fixedly connected to the frame and a reset block connected to the output end of the linear push rod. The reset block is configured to cooperate with the area damping contact component. When the reset block contacts the area damping contact component, it is used to limit its upward movement.

[0015] The beneficial effects of this invention are as follows: This invention provides a stroke-type pressure regulating mechanism between the reciprocating drive mechanism and the pressure head. The pressure transmitted from the reciprocating drive mechanism to the pressure head can be adjusted through the stroke-type pressure regulating mechanism, thereby adjusting the pressure according to the processing requirements of different hardware parts. At the same time, in the process of multi-process stamping, the stroke-type pressure regulating mechanism can form a stroke-type pressure transmission of the same pressure magnitude, which can ensure that the processed area is not subjected to greater pressure. Multiple processing steps can be integrated into one processing step, which can effectively improve processing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a view showing the cooperation between the multi-process pressure head mechanism and the stroke-type pressure regulating mechanism of the present invention; Figure 3 This is a view showing the interaction between the crankshaft drive mechanism and the frame of the present invention; Figure 4 This is the invention Figure 2 An enlarged view of point A in the image; Figure 5 This is a partial cross-sectional view of the multi-process pressure head mechanism and the stroke-type pressure regulating mechanism of the present invention.

[0017] In the diagram: 1. Frame; 2. Crankshaft drive mechanism; 201. Servo motor one; 202. Synchronous pulley one; 203. Eccentric shaft; 204. Synchronous pulley two; 205. Synchronous belt one; 3. Connecting rod and slider mechanism; 301. Connecting rod; 302. Ball joint rod; 303. Slider; 4. Multi-process pressing head mechanism; 401. Connecting plate one; 402. Connecting cylinder; 403. Connecting plate two; 404. Primary pressing block; 405. Secondary pressing block; 406. Fixing plate; 4 7. Spring; 408. Damping strip one; 409. Limiting slide bar; 5. Stroke-type pressure regulating mechanism; 501. Mounting block; 5010. Through hole one; 502. Servo motor two; 503. Synchronous pulley three; 504. Fixed shaft; 505. Movable cylinder; 506. Synchronous pulley four; 507. Synchronous belt two; 508. Damping strip two; 509. Connecting screw; 6. Reset mechanism; 601. Linear push rod; 602. Reset block; 7. Pressure bearing platform. Detailed Implementation

[0018] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed merely to enable those skilled in the art to better understand and implement the subject matter described herein. Furthermore, features described in some examples may be combined in other examples.

[0019] like Figures 1 to 5 As shown, a precision press for machining hardware parts includes: Rack 1; The reciprocating drive mechanism includes a crankshaft drive mechanism 2 mounted on the frame 1 and a connecting rod slider mechanism 3 connected between the frame 1 and the crankshaft drive mechanism 2. One end of the connecting rod slider mechanism 3 is movably connected to the crankshaft drive mechanism 2, and the other end is slidably connected to the frame 1. The stroke-type pressure regulating mechanism 5 includes a limit connection component detachably connected to the other end of the connecting rod slider mechanism 3, a stroke-type damping component movably connected to the limit connection component, and an angle adjustment component connected between the limit connection component and the stroke-type damping component. The angle adjustment component is used to drive the stroke-type damping component to rotate around its own central axis by a set angle. The multi-process pressing head mechanism 4 includes a region damping contact component slidably connected to the other end of the connecting rod slider mechanism 3 and a multi-process pressing head component connected to the region damping contact component. The region damping contact component and the stroke damping component are coaxially arranged. When the region damping contact component contacts different regions on the stroke damping component, a set value of frictional force is generated.

[0020] It should be noted that during the reciprocating movement of the connecting rod-slider mechanism 3 driven by the crankshaft drive mechanism 2, the connecting rod-slider mechanism 3 can drive the multi-process pressure head mechanism 4 and the stroke-type pressure regulating mechanism 5 to move synchronously. When the multi-process pressure head mechanism 4 begins to contact the hardware to be processed, taking multi-process folding as an example, the initial folding requires the initial folding of the hardware part. The area where the folded part finally approaches requires a second fold. During the initial folding, that is, when the aforementioned multi-process pressure head mechanism 4 begins to contact the hardware to be processed, the movement of the multi-process pressure head assembly is obstructed, and the connecting rod-slider mechanism 3 continues to move downward, pushing the stroke-type damping assembly to move downward synchronously and insert into the area damping contact assembly. When the stroke-type damping assembly contacts the area damping contact assembly, friction is generated. This friction is transmitted as pressure, which allows the hardware to begin to be deformed under force until the initial folding. When the first folding is completed and the second folding is performed, the contact area between the initial folding area and the multi-process pressure head assembly remains stable, and the applied pressure is always the set friction force generated when the stroke damping assembly and the area damping contact assembly come into contact. Therefore, it can effectively ensure that the stroke damping assembly will not exert greater pressure on the initial folding area during the continuous downward movement of the stroke damping assembly, until the stroke damping assembly begins to drive the second folding area on the multi-process pressure head assembly to move down synchronously and complete the folding. At this time, the downward stroke of the linkage slider mechanism 3 reaches the end point and begins to move back. According to the design parameter requirements, the rotation angle of the stroke damping assembly can be adjusted by the angle adjustment assembly, thereby changing the contact area between the damping area and the area damping contact assembly, thereby adjusting the magnitude of the generated friction force and realizing the adjustment of the pressure transmission value.

[0021] In an optional embodiment of the invention, such as Figures 1 to 3 As shown, the frame 1 is C-shaped, and the upper part of the frame 1 is provided with a vertical slide groove. A fixed platform is provided on the frame 1 at the lower opening of the vertical slide groove, and a pressure-bearing platform 7 is detachably connected to the fixed platform.

[0022] It should be noted that, as mentioned above, the vertical slide groove is used for the reciprocating movement of the linkage slider mechanism 3. A slide rail is connected to the vertical slide groove, and the other end of the linkage slider mechanism 3 is slidably connected to the slide rail to limit its movement direction.

[0023] In an optional embodiment of the invention, such as Figures 1 to 3 As shown, the crankshaft drive mechanism 2 includes a servo drive assembly fixedly connected to the frame 1 and a crankshaft transmission assembly movably connected to the frame 1. The output end of the servo drive assembly is connected to the input end of the crankshaft transmission assembly. The servo drive assembly includes a servo motor 201 fixedly connected to the frame 1 and a synchronous pulley 202 fixedly connected to the output shaft end of the servo motor 201. The crankshaft transmission assembly includes an eccentric shaft 203 movably connected to the frame 1 and a second synchronous pulley 204 connected to one end of the eccentric shaft 203. A first synchronous belt 205 is connected between the second synchronous pulley 204 and the first synchronous pulley 202.

[0024] The linkage-slider mechanism 3 includes a linkage 301 movably connected to the eccentric shaft 203, a ball joint 302 fixedly connected to the other end of the linkage 301, and a slider 303 slidably connected to the frame 1. The other end of the ball joint 302 is ball-jointed with the slider 303.

[0025] It should be noted that, as mentioned above, during the reciprocating motion process, the servo motor 201 drives the synchronous pulley 202 to rotate. When the synchronous pulley 202 rotates, it drives the synchronous pulley 204 to rotate via the synchronous belt 205. When the synchronous pulley 204 rotates, it drives the eccentric shaft 203 to rotate. When the eccentric shaft 203 rotates, it drives the connecting rod 301 to move accordingly. The connecting rod 301 is ball-jointed with the slider 303 via the ball joint 302. During the reciprocating motion, the connecting rod 301 can drive the slider 303 to reciprocate vertically via the ball joint 302, thereby realizing the reciprocating motion process with fixed pressure output.

[0026] In an optional embodiment of the invention, such as Figure 2 , Figure 4 and Figure 5 As shown, the limiting connection assembly includes a mounting block 501, a plurality of through holes 5010 provided on the mounting block 501, and a connecting screw 509 inserted into the through holes 5010. The slider 303 is provided with a plurality of screw holes that cooperate with the through holes 5010, and the connecting screw 509 is threadedly connected to the corresponding screw holes.

[0027] It should be noted that, as mentioned above, the stroke-type pressure regulating mechanism 5 can be adjusted or replaced according to the needs of different hardware parts. Therefore, it adopts a detachable connection method to facilitate replacement during production. When replacing, the mounting block 501 can be removed from the slider 303 by unscrewing the connecting screw 509. When removing it, the electrical connection terminal of the angle adjustment component on the mounting block 501 needs to be disconnected. After reinstallation, the electrical connection terminal needs to be reconnected.

[0028] In an optional embodiment of the invention, such as Figure 2 , Figure 4 and Figure 5 As shown, the stroke-type damping assembly includes a fixed shaft 504 fixedly connected to the mounting block 501, a movable cylinder 505 movably connected to the fixed shaft 504, and several damping strips 508 fixedly connected to the outer wall of the movable cylinder 505. The several damping strips 508 are evenly distributed on the outer wall of the movable cylinder 505, and the friction coefficients of the several damping strips 508 are all different.

[0029] The angle adjustment assembly includes a servo motor 2 502 fixedly connected to the mounting block 501, a synchronous pulley 3 503 fixedly connected to the output shaft end of the servo motor 2 502, a synchronous pulley 4 506 fixedly connected to the outer wall of the movable cylinder 505, and a synchronous belt 2 507 connecting the synchronous pulley 3 503 and the synchronous pulley 4 506. The length of the movable cylinder 505 is greater than the length of the damping strip 2 508.

[0030] It should be noted that, as mentioned above, when adjusting the area where the stroke-type damping component is finally inserted into the area damping contact component and generates friction, the servo motor 2 502 drives the synchronous pulley 3 503 to rotate. When the synchronous pulley 3 503 rotates, it drives the synchronous pulley 4 506 to rotate at a set angle via the synchronous belt 2 507. When the synchronous pulley 4 506 rotates, it can drive the movable cylinder 505 to rotate synchronously, thereby adjusting the rotation angle of the movable cylinder 505. Since the area damping contact component cannot rotate, the position of the damping strip 2 508 on it changes after the movable cylinder 505 rotates. This allows for adjustment of different damping strips 2 508 or the contact area between the damping strip 2 508 and the area damping contact component, thereby adjusting the magnitude of the friction force that ultimately transmits pressure. This prevents overload, resulting in higher safety, more convenient adjustment, and a wider range of applicable workpieces.

[0031] In an optional embodiment of the invention, such as Figure 4 and Figure 5 As shown, the area damping contact assembly includes a connecting plate 401, several limiting slide rods 409 fixedly connected to the connecting plate 401, a connecting cylinder 402 fixedly connected to the limiting slide rods 409, and several damping strips 408 fixedly connected to the inner wall of the connecting cylinder 402. The connecting plate 401 is provided with through holes that cooperate with the connecting cylinder 402. The several damping strips 408 are evenly distributed on the inner wall of the connecting cylinder 402. The several limiting slide rods 409 are all slidably connected to the slider 303. The connecting cylinder 402 and the movable cylinder 505 are coaxially arranged.

[0032] It should be noted that, as mentioned above, when the position of damping strip 2 508 changes, when damping strip 2 508 is inserted into the connecting cylinder 402, the frictional force generated by the contact between damping strip 2 508 and damping strip 1 408 changes. The frictional force is transmitted to damping strip 1 408, which can drive the connecting cylinder 402 to move down synchronously. When the connecting cylinder 402 moves down, it can drive the multi-process pressure head assembly to move down synchronously at the set pressure value, thereby starting the processing of the hardware parts.

[0033] In an optional embodiment of the invention, such as Figure 4 and Figure 5As shown, the multi-process pressing head assembly includes a connecting plate 403 fixedly connected to the other end of the connecting cylinder 402, a plurality of primary pressing blocks 404 fixedly connected to the bottom of the connecting plate 403, a through hole 2 provided on the connecting plate 403, a spring 407 fixedly connected to the connecting plate 403, a fixing plate 406 fixedly connected to the other end of the spring 407, and a secondary pressing block 405 fixedly connected to the fixing plate 406, with the other end of the secondary pressing block 405 passing through the through hole 2.

[0034] It should be noted that, as mentioned above, during the initial folding, the initial pressure block 404 first contacts the initial folding area of ​​the hardware, and under the action of the friction generated between the first damping strip 408 and the second damping strip 508, a pressure of the same value as the friction is applied to the hardware, thereby achieving the initial folding process. After the initial folding is completed, when the deformation of the hardware reaches a point where it can overcome the friction, the second damping strip 508 can continue to move downward, that is, the movable cylinder 505 and the fixed shaft 504 continue to move downward. When the movable cylinder 505 contacts the fixed plate 406, it begins to push the fixed plate 406 and the secondary pressure block 405 downward, so that the secondary pressure block 405 finally passes through the second perforation and performs a second folding process on the middle area folded by the initial pressure block 404. The pressure on the initial folding area remains constant, thus effectively preventing the folded area from being over-pressed.

[0035] In an optional embodiment of the invention, such as Figures 2 to 4 As shown, it also includes a reset mechanism 6, which includes a linear push rod 601 fixedly connected to the frame 1 and a reset block 602 connected to the output end of the linear push rod 601. The reset block 602 is configured to cooperate with the area damping contact component. When the reset block 602 contacts the area damping contact component, it is used to limit its upward movement.

[0036] It should be noted that, as mentioned above, during the reset process, the linear push rod 601 controls the reset block 602 to extend and block the reset path of the connecting plate 401, thereby applying resistance to the connecting plate 401. The slider 303, mounting block 501, fixed shaft 504, and movable cylinder 505 are reset without obstruction, thus allowing the connecting cylinder 402 to disengage from the damping strip 508. After disengagement, the reset block 602 resets, allowing the next hardware processing step to proceed. After the damping strip 508 disengages from the damping strip 408, the secondary pressure block 405 can move back into the connecting cylinder 402 under the reset action of the spring 407.

[0037] The above description of this embodiment is not limited to the specific implementation described above. The specific implementation described above is merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of this embodiment, all of which are within the protection scope of this embodiment.

Claims

1. A precision press for processing hardware parts, characterized in that, include: Rack (1); The reciprocating drive mechanism includes a crankshaft drive mechanism (2) mounted on a frame (1) and a connecting rod slider mechanism (3) connected between the frame (1) and the crankshaft drive mechanism (2). One end of the connecting rod slider mechanism (3) is movably connected to the crankshaft drive mechanism (2), and the other end is slidably connected to the frame (1). The stroke-type pressure regulating mechanism (5) includes a limit connection component detachably connected to the other end of the connecting rod slider mechanism (3), a stroke-type damping component movably connected to the limit connection component, and an angle adjustment component connected between the limit connection component and the stroke-type damping component. The angle adjustment component is used to drive the stroke-type damping component to rotate around its own central axis by a set angle. The multi-process pressure head mechanism (4) includes a region damping contact component slidably connected to the other end of the connecting rod slider mechanism (3) and a multi-process pressure head component connected to the region damping contact component. The region damping contact component is coaxially arranged with the stroke damping component. When the region damping contact component contacts different regions on the stroke damping component, a set value of friction force is generated.

2. The precision press for processing hardware parts according to claim 1, characterized in that, The frame (1) is C-shaped in general, and the upper part of the frame (1) is provided with a vertical slide groove. A fixed platform is provided on the frame (1) at the lower opening of the vertical slide groove, and a pressure-bearing platform (7) is detachably connected to the fixed platform.

3. A precision press for processing hardware parts according to claim 2, characterized in that, The crankshaft drive mechanism (2) includes a servo drive assembly fixedly connected to the frame (1) and a crankshaft transmission assembly movably connected to the frame (1). The output end of the servo drive assembly is connected to the input end of the crankshaft transmission assembly. The servo drive assembly includes a servo motor (201) fixedly connected to the frame (1) and a synchronous pulley (202) fixedly connected to the output shaft end of the servo motor (201). The crankshaft transmission assembly includes an eccentric shaft (203) movably connected to the frame (1) and a second synchronous pulley (204) connected to one end of the eccentric shaft (203). A first synchronous belt (205) is connected between the second synchronous pulley (204) and the first synchronous pulley (202).

4. A precision press for processing hardware parts according to claim 3, characterized in that, The linkage-slider mechanism (3) includes a linkage (301) movably connected to an eccentric shaft (203), a ball joint (302) fixedly connected to the other end of the linkage (301), and a slider (303) slidably connected to the frame (1). The other end of the ball joint (302) is ball-jointed with the slider (303).

5. A precision press for processing hardware parts according to claim 4, characterized in that, The limiting connection assembly includes a mounting block (501), a plurality of through holes (5010) provided on the mounting block (501), and a connecting screw (509) inserted into the through holes (5010). The slider (303) is provided with a plurality of screw holes that cooperate with the through holes (5010), and the connecting screw (509) is threadedly connected to the corresponding screw holes.

6. A precision press for machining hardware parts according to claim 5, characterized in that, The stroke-type damping assembly includes a fixed shaft (504) fixedly connected to the mounting block (501), a movable cylinder (505) movably connected to the fixed shaft (504), and a plurality of damping strips (508) fixedly connected to the outer wall of the movable cylinder (505). The plurality of damping strips (508) are evenly distributed on the outer wall of the movable cylinder (505), and the friction coefficients of the plurality of damping strips (508) are all different.

7. A precision press for machining hardware parts according to claim 6, characterized in that, The angle adjustment assembly includes a servo motor two (502) fixedly connected to the mounting block (501), a synchronous wheel three (503) fixedly connected to the output shaft end of the servo motor two (502), a synchronous wheel four (506) fixedly connected to the outer wall of the movable cylinder (505), and a synchronous belt two (507) connected between the synchronous wheel three (503) and the synchronous wheel four (506). The length of the movable cylinder (505) is greater than the length of the damping strip two (508).

8. A precision press for machining hardware parts according to claim 7, characterized in that, The regional damping contact assembly includes a connecting plate (401), a plurality of limiting slide rods (409) fixedly connected to the connecting plate (401), a connecting cylinder (402) fixedly connected to the limiting slide rods (409), and a plurality of damping strips (408) fixedly connected to the inner wall of the connecting cylinder (402). The connecting plate (401) is provided with through holes that cooperate with the connecting cylinder (402). The plurality of damping strips (408) are evenly distributed on the inner wall of the connecting cylinder (402). The plurality of limiting slide rods (409) are all slidably connected to the slider (303). The connecting cylinder (402) and the movable cylinder (505) are coaxially arranged.

9. A precision press for machining hardware parts according to claim 8, characterized in that, The multi-process pressure head assembly includes a second connecting plate (403) fixedly connected to the other end of the connecting cylinder (402), a plurality of primary pressure blocks (404) fixedly connected to the bottom of the second connecting plate (403), a second through hole provided on the second connecting plate (403), a spring (407) fixedly connected to the second connecting plate (403), a fixing plate (406) fixedly connected to the other end of the spring (407), and a secondary pressure block (405) fixedly connected to the fixing plate (406), the other end of the secondary pressure block (405) passing through the second through hole.

10. A precision press for machining hardware parts according to claim 9, characterized in that, It also includes a reset mechanism (6), which includes a linear push rod (601) fixedly connected to the frame (1) and a reset block (602) connected to the output end of the linear push rod (601). The reset block (602) is configured to cooperate with the area damping contact assembly. When the reset block (602) contacts the area damping contact assembly, it is used to limit its upward movement.

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