Mechanical equipment part punch forming device and punch forming method thereof

Abstract

The invention belongs to the technical field of stamping equipment, and discloses a mechanical equipment part stamping forming device and a stamping forming method.The mechanical equipment part stamping forming device comprises a workbench provided with a die cavity, a supporting frame is arranged on the workbench, a lifting plate is arranged on the supporting frame in a lifting and sliding mode, and a stamping module is arranged on the lifting plate; the positioning assembly comprises a plurality of positioning grooves, and positioning modules are arranged in the positioning grooves in a lifting mode. The air assembly comprises a plurality of air channels which are arranged in the workbench and communicate with the mold cavity, one-way valves which are opened towards the mold cavity in a one-way mode are arranged in the air channels, and the air channels between the one-way valves and the interior of the mold cavity and an air storage module arranged in the workbench are arranged. The stamping device is compact in structure and high in automation degree, automatic stamping forming of workpieces is conveniently achieved, meanwhile, deformation of the workpieces in the stamping process is avoided, and the forming quality of the workpieces is improved; and meanwhile, subsequent workpiece demolding is facilitated, the punch forming efficiency of the workpiece is improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of stamping equipment, and in particular relates to a stamping forming device for mechanical equipment parts and a stamping forming method thereof. Background Art

[0002] In the machinery manufacturing industry, parts stamping is one of the indispensable production processes and is widely used in many fields such as automobiles, home appliances, aerospace, etc.

[0003] In the existing parts stamping and forming process, the blank to be formed is fed into the stamping equipment, and the blank is stamped by the stamping equipment to form a batch of parts; however, during the forming process, the positioning accuracy of the blank is insufficient and the fixation is poor; at the same time, it is not convenient to take the parts out of the mold after forming, and the forming process is prone to additional deformation; and when the mold is a closed environment, the air retained in the mold cavity is not convenient to be discharged, which will also cause errors in the parts during the forming process and affect the forming quality of the parts.

[0004] Therefore, the present application designs a mechanical equipment parts stamping forming device and a stamping forming method thereof to solve the above-mentioned technical problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention proposes a mechanical equipment parts stamping forming device and a stamping forming method thereof.

[0006] To achieve the above object, the present invention provides a mechanical equipment parts stamping forming device, comprising:

[0007] A workbench, wherein a mold cavity for forming a workpiece is arranged on the workbench, a support frame is arranged on the workbench, a lifting plate is provided on the support frame for lifting and sliding, a stamping module for stamping a workpiece blank is arranged on the lifting plate, and the stamping module is arranged corresponding to the mold cavity;

[0008] A positioning assembly comprises a plurality of positioning grooves arranged at equal intervals on the workpiece, the positioning grooves being arranged around the mold cavity; a positioning module is arranged in the positioning grooves for lifting and lowering, and the plurality of positioning modules abut against the periphery of the workpiece blank to position and fix the blank;

[0009] The air component includes a plurality of air channels arranged in the workbench and connected to the mold cavity, wherein the air channel is provided with a one-way valve which opens one-way to the mold cavity, and the air channel between the one-way valve and the mold cavity is connected to an air storage module arranged in the workbench.

[0010] Preferably, the air storage module includes an air storage cavity opened in the workbench, and the air storage cavity is connected to the air channel; an air storage spring is arranged in the air storage cavity, and the air storage spring is fixedly connected to a buffer plate which is sealed and slidable in the air storage cavity.

[0011] Preferably, the one-way valve includes a fixed plate and a sliding plate arranged in the air channel, the fixed plate is fixedly connected in the air channel, the sliding plate is slidably connected in the air channel, a plurality of first air holes are arranged on the fixed plate, a plurality of blocking blocks adapted to the first air holes are arranged on the sliding plate, and the blocking blocks are detachably connected in the first air holes to realize one-way air flow.

[0012] Preferably, a sliding rod is provided on the sliding plate, the sliding rod passes through the fixed plate and slides sealingly with the fixed plate, a one-way spring in a compressed state is provided between one end of the sliding rod away from the sliding block and the fixed plate, and the one-way spring is sleeved on the sliding rod.

[0013] Preferably, a plurality of second vent holes are formed through the sliding plate, and the second vent holes are staggered with the first vent holes to facilitate the passage of compressed air.

[0014] Preferably, the positioning module includes a positioning block which is lifted and slid in the positioning groove, the positioning block is provided with a positioning cavity on the side facing the mold cavity, a positioning telescopic rod is installed in the positioning cavity, the free end of the positioning telescopic rod extends out of the positioning cavity and is fixedly connected to a positioning plate, and the positioning plate abuts against the side wall of the workpiece.

[0015] Preferably, a clearance groove is provided at the bottom end of the positioning groove, a lifting and telescopic rod is arranged in the clearance groove, and the top end of the lifting and telescopic rod extends out of the clearance groove and is transmission-connected to the bottom end of the positioning block.

[0016] Preferably, the stamping module includes a pressure transmission rod fixedly connected to the lower end of the lifting plate, the bottom end of the pressure transmission rod is provided with a stamping head corresponding to the mold cavity, and the workpiece is stamped and formed by the stamping head in the mold cavity.

[0017] Preferably, a plurality of guide rods arranged at equal intervals are arranged around the punch head, the top ends of the guide rods pass through the lifting plate and are slidably connected to the lifting plate, and the top ends of the guide rods are provided with positioning nuts.

[0018] A method for stamping and forming mechanical equipment parts, comprising the following steps:

[0019] Assemble the mechanical equipment parts stamping and forming device of the present application, and inspect and calibrate the device;

[0020] The workpiece blank is placed on the mold cavity, and the positioning module is controlled to rise from the positioning groove, and the positioning module is pressed against the workpiece blank to achieve positioning and fixing of the workpiece blank;

[0021] Control the lifting plate to drive the stamping module to descend and press against the workpiece blank;

[0022] After accurate positioning is detected, the lifting plate is controlled to press down again, so that the stamping module is embedded downward into the mold cavity, so that the workpiece blank is stamped and formed between the mold cavity and the stamping module. At this time, the air in the mold cavity is pressed into the air channel and stored in the air storage module.

[0023] Maintain the punching force for a while, then raise the lifting plate to withdraw the punching module from the mold cavity to facilitate subsequent demoulding of the workpiece;

[0024] High-pressure air is introduced into the air channel, and then injected into the mold cavity through the one-way valve to increase the pressure between the mold cavity and the workpiece. The workpiece is pushed out of the mold cavity by the high pressure to complete demoulding.

[0025] After the workpiece is demoulded, the stored air in the air storage module is discharged from the mold cavity along the air channel, making it convenient to stamp and form the workpiece again.

[0026] Compared with the prior art, the present invention has the following advantages and technical effects: the present invention discloses a mechanical equipment parts stamping forming device and a stamping forming method thereof, a workbench is provided with a die cavity and a stamping module with a lifting arrangement, when working, the stamping module presses down to form the workpiece between the die cavity and the stamping module; the action module of the positioning assembly is lifted and lowered in the positioning groove, and the workpiece blank can be conveniently positioned and fixed during stamping, and after the stamping is completed, the corresponding reverse positioning die can be retracted into the positioning groove, which is convenient for the workpiece to be transferred to the next process, and the workpiece blank can be automatically fed in again, and then the positioning module is lifted again to position and fix the newly entered workpiece blank, so that The invention is used to realize automated production; the air channel of the air component is connected between the mold cavity and the outside world, and is connected to the compressed air equipment in the outside world. After the stamping is completed, the stamping module rises, and the compressed air equipment introduces high-pressure air into the mold cavity through the air channel to push the workpiece out of the mold cavity, which is convenient for demoulding; and the setting of the air storage module and the one-way valve makes the air between the workpiece blank and the mold cavity be pressed into the air channel when the stamping module stamps the workpiece, so that the pressure in the air channel increases and is stored in the air storage module, which increases the expansion area, reduces the excessive pressure increase in the air channel, avoids the excessive air pressure from affecting the forming of the workpiece, and improves the quality of the workpiece.

[0027] The present invention has a compact structure and a high degree of automation, and is convenient for realizing the automated stamping and forming of workpieces. At the same time, it avoids deformation of the workpieces during the stamping process and improves the forming quality of the workpieces. It is also convenient for subsequent demoulding of the workpieces, improves the stamping and forming efficiency of the workpieces, and reduces production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0029] Figure 1 This is an axial view of the mechanical equipment parts stamping and forming device of the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of the mechanical equipment parts stamping and forming device of the present invention;

[0031] Figure 3 For the present invention Figure 2 A partial enlarged view of middle A;

[0032] Figure 4 For the present invention Figure 2 A partial enlarged view of B in the middle;

[0033] Figure 5 For the present invention Figure 2 A partial enlarged view of middle C;

[0034] Figure 6 It is a schematic diagram of the structure of the fixing plate of the present invention;

[0035] Figure 7 It is a schematic diagram of the structure of the sliding plate of the present invention;

[0036] In the figure: 1, base; 2, connecting column; 3, workbench; 4, mold cavity; 5, support frame; 6, lifting plate; 7, stamping hydraulic cylinder; 8, pressure transmission rod; 9, stamping head; 10, guide rod; 11, positioning nut; 12, outer fixing cylinder; 13, inner sliding cylinder; 14, force transmission spring; 15, pressure sensor; 16, positioning groove; 17, positioning block; 18, positioning cavity; 19, positioning telescopic rod; 20, positioning plate; 21, combination groove; 22, air channel; 23, one-way valve; 2 4. Air storage module; 25. Air storage chamber; 26. Air storage spring; 27. Buffer plate; 28. Fixed plate; 29. ​​Sliding plate; 30. First vent hole; 31. Blocking block; 32. Sliding rod; 33. One-way spring; 34. Second vent hole; 35. Fixed rod; 36. Movable rod; 37. Pressing plate; 38. Pressing spring; 39. Limiting groove; 40. Limiting block; 41. Ejection hydraulic cylinder; 42. Ejection plate; 43. Connecting channel; 44. Make way groove; 45. Lifting and telescopic rod. DETAILED DESCRIPTION

[0037] 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.

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Reference Figure 1-Figure 7 As shown, this embodiment provides a mechanical equipment parts stamping forming device, comprising:

[0040] A workbench 3, on which a mold cavity 4 for forming a workpiece is arranged, a support frame 5 is arranged on the workbench 3, a lifting plate 6 is provided on the support frame 5 for lifting and sliding, a stamping module for stamping the workpiece blank is arranged on the lifting plate 6, and the stamping module is arranged corresponding to the mold cavity 4;

[0041] The positioning assembly includes a plurality of positioning grooves 16 arranged at equal intervals on the workpiece, and the positioning grooves 16 are arranged around the mold cavity 4; positioning modules are arranged in the positioning grooves 16 for lifting and lowering, and the plurality of positioning modules abut against the periphery of the workpiece blank to position and fix the blank;

[0042] The air component includes a plurality of air channels 22 arranged in the workbench 3 and connected to the mold cavity 4. A one-way valve 23 that is opened in one direction to the mold cavity 4 is arranged in the air channel 22. The air channel 22 between the one-way valve 23 and the mold cavity 4 is connected to an air storage module 24 arranged in the workbench 3.

[0043] The present invention discloses a mechanical equipment part stamping forming device and a stamping forming method thereof. A die cavity 4 and a stamping module with a lifting arrangement are arranged on a workbench 3. When working, the stamping module presses down to form a workpiece between the die cavity 4 and the stamping module; the action module of the positioning component is lifted and lowered in the positioning groove 16, and the workpiece blank can be conveniently positioned and fixed during stamping. After the stamping is completed, the corresponding reverse positioning die can be retracted into the positioning groove 16, which is convenient for the workpiece to be transferred to the next process and realizes the automatic re-feeding of the workpiece blank. Then the positioning module is lifted again to position and fix the newly entered workpiece blank, which is convenient for realizing automated production; the air ventilation of the air component The air channel 22 is connected between the mold cavity 4 and the outside world, and is connected to the compressed air equipment in the outside world. After the stamping is completed, the stamping module rises, and the compressed air equipment introduces high-pressure air into the mold cavity 4 through the air channel 22, and the workpiece is pushed out of the mold cavity 4, which is convenient for demoulding; and the setting of the air storage module 24 and the one-way valve 23 makes the air between the workpiece blank and the mold cavity 4 be pressed into the air channel 22 when the stamping module stamps the workpiece, so that the pressure in the air channel 22 is increased and stored on the air storage module 24, which increases the expansion area, reduces the excessive pressure increase in the air channel 22, avoids the excessive air pressure from affecting the forming of the workpiece, and improves the quality of the workpiece. The present invention has a compact structure and a high degree of automation, which is convenient for realizing the automatic stamping and forming of the workpiece, while avoiding the deformation of the workpiece during the stamping process, and improving the forming quality of the workpiece; at the same time, it is also convenient for the subsequent demoulding of the workpiece, improves the stamping and forming efficiency of the workpiece, and reduces the production cost.

[0044] In one embodiment of the present application, the bottom end of the workbench 3 is fixedly connected to the base 1 through a plurality of length-adjustable connecting columns 2. The base 1 falls on the floor of the factory building, which facilitates the adjustment of the height of the workbench 3 and the assembly of an automated production line.

[0045] In one embodiment of the present application, an ejection hydraulic cylinder 41 is installed on the base 1, and the output end of the ejection hydraulic cylinder 41 passes through the workbench 3 and extends into the mold cavity 4. The top surface of the output end of the ejection hydraulic cylinder 41 is fixedly connected to an ejection plate 42. After the stamping is completed, the workpiece is fitted with the mold cavity 4, the ejection hydraulic cylinder 41 is started, and the ejection plate 42 lifts the workpiece in the mold cavity 4 to facilitate demolding.

[0046] In one embodiment of the present application, the demoulding method of the ejection hydraulic cylinder 41 and the demoulding method of the air component are used separately or in combination.

[0047] In one embodiment of the present application, a stamping hydraulic cylinder 7 is installed on the support frame 5, and the output end of the stamping hydraulic cylinder 7 is downward and transmission-connected to the lifting plate 6, providing power for the lifting and lowering of the lifting plate 6, thereby assisting the stamping module in stamping.

[0048] Further optimization scheme, the air storage module includes an air storage cavity 25 opened in the workbench 3, and the air storage cavity 25 is connected with the air channel 22; an air storage spring 26 is arranged in the air storage cavity 25, and the air storage spring 26 is fixedly connected with the buffer plate 27 which is sealed and slid in the air storage cavity 25. When stamping, the workpiece blank compresses the space in the mold cavity 4, and the air in the mold cavity 4 is transferred to the air channel 22 through the connecting channel 43 under pressure. However, due to the presence of the one-way valve 23, the air cannot be discharged, so that the pressure in the air channel 22 is increased. The increased air pressure presses the buffer plate 27 to make the buffer plate 27 slide, compressing the air storage spring 26, increasing the storage space of the air, reducing the pressure increase in the air channel 22, and avoiding affecting the forming of the workpiece.

[0049] Further optimized solution, the one-way valve 23 includes a fixed plate 28 and a sliding plate 29 arranged in the air channel 22, the fixed plate 28 is fixed in the air channel 22, the sliding plate 29 is slidably connected in the air channel 22, a plurality of first vents 30 are arranged on the fixed plate 28, a plurality of blocking blocks 31 adapted to the first vents 30 are arranged on the sliding plate 29, and the blocking blocks 31 are detachably connected in the first vents 30 to achieve one-way air flow. The sliding plate 29 slides in the air channel 22, and when in a normal state, the sliding block fits on the fixed plate 28, and the first vents 30 are blocked by the blocking blocks 31 to achieve blocking; and when demoulding is required, the sliding plate 29 is away from the fixed plate 28, so that the two sides of the first vents 30 are connected to achieve ventilation.

[0050] In a further optimized solution, a sliding rod 32 is provided on the sliding plate 29, and the sliding rod 32 passes through the fixed plate 28 and slides in a sealed manner with the fixed plate 28. A one-way spring 33 in a compressed state is provided between the end of the sliding rod 32 away from the sliding block and the fixed plate 28, and the one-way spring 33 is sleeved on the sliding rod 32. The arrangement of the sliding rod 32 and the one-way spring 33 enables the first vent hole 30 to be blocked without external force, so that both sides of the one-way valve 23 are closed; and when ventilation is required, the introduction of compressed air causes the pressure on both sides of the one-way valve 23 to produce a sufficient pressure difference, pushing the sliding block to move to the side away from the fixed block, compressing the one-way spring 33 again, so that both sides of the one-way valve 23 are connected.

[0051] Further optimization scheme, a plurality of second vent holes 34 are formed through the sliding plate 29, and the second vent holes 34 are staggered with the first vent holes 30 to facilitate the passage of compressed air. The second vent holes 34 are arranged in the outer ring area of ​​the sliding plate 29 to facilitate air circulation; the staggered arrangement of the first vent holes 30 and the second vent holes 34 does not affect the function of the one-way valve 23 while facilitating air circulation.

[0052] Further optimization scheme, the positioning module includes a positioning block 17 that is lifted and slid in the positioning groove 16, and the positioning block 17 is provided with a positioning cavity 18 on the side facing the mold cavity 4, and a positioning telescopic rod 19 is installed in the positioning cavity 18, and the free end of the positioning telescopic rod 19 extends out of the positioning cavity 18 and is fixedly connected with a positioning plate 20, and the positioning plate 20 abuts against the side wall of the workpiece. The positioning telescopic rod 19 is installed in the positioning cavity 18, and its output end positions and fixes the workpiece through the positioning plate 20; when the workpiece blank needs to pass through, the positioning block 17 descends in the positioning groove 16, and the output end of the positioning telescopic rod 19 drives the positioning plate 20 to be recovered and embedded in the coupling groove 21, so that the top of the positioning block 17 is flush with the top surface of the workbench 3; and when fixing the workpiece, the positioning block 17 rises, so that the positioning plate 20 can slide on the workbench 3 and fix the workpiece.

[0053] Further optimizing the scheme, a clearance groove 44 is provided at the bottom of the positioning groove 16, and a lifting and telescopic rod 45 is arranged in the clearance groove 44. The top end of the lifting and telescopic rod 45 extends out of the clearance groove 44 and is transmission-connected with the bottom end of the positioning block 17. The lifting and telescopic rod 45 is installed in the clearance groove 44 at the bottom end of the positioning groove 16, which can conveniently ensure that when the positioning block 17 descends, the bottom end of the positioning block 17 is not higher than the top surface of the workbench 3, so as to facilitate the automatic pushing of the workpiece blank.

[0054] Further optimizing the scheme, the stamping module includes a pressure transmission rod 8 fixed to the lower end of the lifting plate 6, and the bottom end of the pressure transmission rod 8 is provided with a punch head 9 corresponding to the mold cavity 4, and the workpiece is punched and formed by the punch head 9 in the mold cavity 4. When the lifting plate 6 is raised or lowered, the punch head 9 can be driven to rise or fall by the force transmission rod, and then the stamping pressure is transmitted to the punch head 9, which is convenient for stamping.

[0055] Further optimization scheme, a plurality of equally spaced guide rods 10 are arranged around the punch head 9, the top of the guide rod 10 passes through the lifting plate 6 and is slidably connected to the lifting plate 6, and a positioning nut 11 is arranged at the top of the guide rod 10. The guide rod 10 and the lifting plate 6 are slidably arranged, and the punch head 9 can be stabilized by uniform arrangement; at the same time, the positioning nut 11 at the top of the guide rod 10 realizes the positioning of the punch head 9.

[0056] In one embodiment of the present application, the transmission rod includes an outer fixed cylinder 12 and an inner sliding cylinder 13 which are slidably connected, the top end of the outer fixed cylinder 12 is fixedly connected to the lifting plate 6, and the bottom end of the inner sliding cylinder 13 is fixedly connected to the top surface of the punch head 9; a pressure sensor 15 electrically connected to the punching hydraulic cylinder 7 is fixedly installed on the top surface of the inner cavity of the outer fixed cylinder 12, and a force transmission spring 14 is fixedly connected between the bottom surface of the inner cavity of the inner sliding cylinder 13 and the top surface of the inner cavity of the outer fixed cylinder 12, and the force transmission spring 14 abuts against the pressure sensor 15; at non-punching moments, the weight of the punch head 9 is pulled by the guide rod 10 and the positioning nut 11, the force transmission rod is not subjected to force, and the force transmission spring 14 is in a free state, thereby preventing fatigue deformation caused by long-term compression and improving service life; during punching, the punch head 9 contacts the workpiece blank, and the workpiece blank produces a reverse pressure on the punch head 9 The supporting force of the guide rod 10 slides with the lifting plate 6, and no pressure is generated on the punch head 9. The pressure of the stamping hydraulic cylinder 7 brings the lifting plate 6 and the punch head 9 closer, compressing the force transmission spring 14, so that the punch head 9 is subjected to pressure, and as the force transmission spring 14 is compressed, the pressure of the punch head 9 increases, until the workpiece blank is punched into the mold cavity 4 to form the desired shape. The pressure sensor 15 is used to measure the pressure of the force transmission spring 14 on the punch head 9. When the pressure reaches the set stamping pressure, the stamping hydraulic cylinder 7 is controlled to stop loading. After 3s-5s, the stamping hydraulic cylinder 7 reverses and pulls the lifting plate 6 up. The pressure on the punch head 9 gradually decreases until the force transmission spring 14 resumes a free state again. The lifting plate 6 pulls up the punch head 9 through the guide rod 10 to complete a stamping process.

[0057] In one embodiment of the present application, the bottom end of the lifting plate 6 is fixedly connected to a plurality of fixed rods 35 arranged around the impact head, the inner cavity of the fixed rod 35 is slidably connected to a movable rod 36, the bottom surface of the movable rod 36 is fixedly connected to a pressing plate 37, and the pressing plate 37 abuts against the top surface of the workpiece blank; a pressing spring 38 is fixedly connected to the inner cavity of the fixed rod 35, and the pressing spring 38 is fixedly connected to the top surface of the movable rod 36; the bottom surface of the pressing plate 37 is lower than the bottom surface of the punch head 9; when the lifting plate 6 is pressed down, the pressing plate 37 contacts the workpiece blank before the punch head 9, and as the lifting plate 6 is pressed down, the movable rod 36 gradually slides up along the inner cavity of the fixed rod 35, compressing the pressing spring 38, and as the pressing spring 38 contracts, the pressure on the movable rod 36 also increases, thereby gradually pressing the workpiece blank, thereby improving the stability of the workpiece blank.

[0058] In one embodiment of the present application, a plurality of limit grooves 39 are longitudinally opened on the side wall of the fixed rod 35, the top end of the movable rod 36 is fixedly connected to a limit block 40, the limit block 40 and the limit groove 39 are correspondingly arranged and slidably connected, and the pressing spring 38 is fixedly connected to the top end of the limit block 40; the limit block 40 and the limit groove 39 provide limitation for the movement of the movable rod 36.

[0059] In addition, the present invention discloses a method for stamping and forming mechanical equipment parts, comprising the following steps:

[0060] Assembling the mechanical equipment parts stamping and forming device disclosed in the present invention, and inspecting and calibrating the device;

[0061] Place the workpiece blank on the mold cavity 4, and control the positioning module to rise from the positioning groove 16, and use the positioning module to press against the workpiece blank to achieve positioning and fixing of the workpiece blank; place the workpiece blank on the workbench 3, align the workpiece blank with the mold cavity 4, then raise the positioning block 17, and then start the positioning telescopic rod 19 to clamp the side of the workpiece blank through the positioning plate 20;

[0062] The lifting plate 6 is controlled to drive the stamping module to descend and press against the workpiece blank; the stamping hydraulic cylinder 7 is started to drive the lifting plate 6 to descend, and the lifting plate 6 is suspended by the guide rod 10 to drive the punch head 9 to descend until the punch head 9 contacts the top surface of the workpiece blank; before the punch head 9 contacts the workpiece blank, the pressing plate 37 contacts the workpiece blank first, and the workpiece blank is gradually pressed as the lifting plate 6 is pressed downward;

[0063] After accurate positioning is detected, the lifting plate 6 is controlled to be pressed down again, so that the stamping module is embedded downward into the mold cavity 4, so that the workpiece blank is stamped and formed between the mold cavity 4 and the stamping module. At this time, the air in the mold cavity 4 is pressed into the air channel 22 and stored in the air storage module 24; the lifting plate 6 continues to descend, and the guide rod 10 no longer applies force to the punch head 9. The pressure of the lifting plate 6 is transmitted to the punch head 9 through the force transmission rod, so that the pressure of the punch head 9 on the workpiece blank gradually increases, and the workpiece blank is pressed into the mold cavity 4 until the pressure of the force transmission spring 14 on the pressure sensor 15 reaches a predetermined value. At this time, the workpiece blank is completely fitted with the mold cavity 4 to form a workpiece;

[0064] Maintain the punching pressure for a while, then raise the lifting plate 6, and withdraw the punching module from the die cavity 4 to facilitate the subsequent demolding of the workpiece; after maintaining for 3s-5s, the lifting plate 6 is driven to rise by the punching hydraulic cylinder 7, and the pressure on the punch head 9 is gradually reduced, and finally no pressure is generated on the workpiece. At this time, the positioning nut 11 contacts the lifting plate 6, and the lifting plate 6 drives the punch head 9 to rise through the guide rod 10 and leave the workpiece blank. At the same time, the top pressure assembly is also relaxed as the lifting plate 6 rises;

[0065] High-pressure air is introduced into the air channel 22, and then injected into the mold cavity 4 after passing through the one-way valve 23, thereby increasing the pressure between the mold cavity 4 and the workpiece, and the workpiece is pushed out of the mold cavity 4 by the high pressure, thereby completing demoulding; the positioning plate 20 is released, and the ejection hydraulic cylinder 41 is started or compressed air is introduced into the air channel 22, so that the workpiece blank is ejected from the mold cavity 4 and transferred to the next process, thereby completing the entire stamping process;

[0066] After the workpiece is demoulded, the stored air in the air storage module 24 is discharged from the mold cavity 4 along the air channel 22, so as to facilitate the stamping and forming of the workpiece again.

[0067] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0068] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A mechanical equipment parts stamping forming device, characterized in that: include: A workbench (3), wherein a mold cavity (4) for forming a workpiece is arranged on the workbench (3), a support frame (5) is arranged on the workbench (3), a lifting plate (6) is provided on the support frame (5) for lifting and sliding, a punching module for punching and forming a workpiece blank is arranged on the lifting plate (6), and the punching module is arranged corresponding to the mold cavity (4); A positioning assembly comprises a plurality of positioning grooves (16) arranged at equal intervals on the workpiece, wherein the positioning grooves (16) are arranged around the mold cavity (4); positioning modules are arranged in the positioning grooves (16) for lifting, and the plurality of positioning modules abut against the periphery of the workpiece blank to position and fix the blank; An air component comprises a plurality of air passages (22) arranged in the workbench (3) and connected to the mold cavity (4); a one-way valve (23) which is opened in one direction toward the mold cavity (4) is arranged in the air passage (22); the air passage (22) between the one-way valve (23) and the mold cavity (4) is connected to an air storage module (24) arranged in the workbench (3).

2. The mechanical equipment parts stamping forming device according to claim 1 is characterized in that: The air storage module comprises an air storage cavity (25) provided in the workbench (3), wherein the air storage cavity (25) is communicated with the air passage (22); an air storage spring (26) is arranged in the air storage cavity (25), and the air storage spring (26) is fixedly connected to a buffer plate (27) which is sealingly slidable in the air storage cavity (25).

3. The mechanical equipment parts stamping forming device according to claim 1, characterized in that: The one-way valve (23) comprises a fixed plate (28) and a sliding plate (29) arranged in the air passage (22); the fixed plate (28) is fixedly connected in the air passage (22); the sliding plate (29) is slidably connected in the air passage (22); a plurality of first air holes (30) are arranged on the fixed plate (28); a plurality of blocking blocks (31) adapted to the first air holes (30) are arranged on the sliding plate (29); the blocking blocks (31) are detachably connected in the first air holes (30) to realize one-way air flow.

4. The mechanical equipment parts stamping forming device according to claim 3 is characterized in that: A sliding rod (32) is arranged on the sliding plate (29), and the sliding rod (32) passes through the fixed plate (28) and slides in a sealed manner with the fixed plate (28). A one-way spring (33) in a compressed state is arranged between one end of the sliding rod (32) away from the sliding block and the fixed plate (28), and the one-way spring (33) is sleeved on the sliding rod (32).

5. The mechanical equipment parts stamping forming device according to claim 3, characterized in that: A plurality of second vent holes (34) are formed through the sliding plate (29), and the second vent holes (34) are arranged in a staggered manner with the first vent holes (30) to facilitate the passage of compressed air.

6. The mechanical equipment parts stamping forming device according to claim 1, characterized in that: The positioning module comprises a positioning block (17) which is lifted and slid in the positioning groove (16); a positioning cavity (18) is provided on the side of the positioning block (17) facing the mold cavity (4); a positioning telescopic rod (19) is installed in the positioning cavity (18); a free end of the positioning telescopic rod (19) extends out of the positioning cavity (18) and is fixedly connected to a positioning plate (20); the positioning plate (20) abuts against a side wall of the workpiece.

7. The mechanical equipment parts stamping forming device according to claim 6, characterized in that: A clearance groove (44) is provided at the bottom end of the positioning groove (16), and a lifting and telescopic rod (45) is arranged in the clearance groove (44). The top end of the lifting and telescopic rod (45) extends out of the clearance groove (44) and is transmission-connected to the bottom end of the positioning block (17).

8. The mechanical equipment parts stamping forming device according to claim 1, characterized in that: The stamping module comprises a pressure transmission rod (8) fixedly connected to the lower end of the lifting plate (6); a stamping head (9) corresponding to the mold cavity (4) is arranged at the lower end of the pressure transmission rod (8); and the workpiece is stamped and formed by the stamping head (9) in the mold cavity (4).

9. The mechanical equipment parts stamping forming device according to claim 8, characterized in that: A plurality of guide rods (10) are arranged at equal intervals around the punch head (9); the top ends of the guide rods (10) pass through the lifting plate (6) and are slidably connected to the lifting plate (6); and the top ends of the guide rods (10) are provided with positioning nuts (11).

10. A method for stamping and forming mechanical equipment parts, characterized in that The following steps are involved: Assembling the mechanical equipment parts stamping and forming device according to any one of claims 1 to 9, and inspecting and calibrating the device; Placing a workpiece blank on the mold cavity (4), and controlling the positioning module to rise from the positioning groove (16), so that the positioning module presses against the workpiece blank to achieve positioning and fixing of the workpiece blank; Controlling the lifting plate (6) to drive the punching module to descend and press against the workpiece blank; After accurate positioning is detected, the lifting plate (6) is controlled to be pressed down again, so that the punching module is embedded downward into the mold cavity (4), so that the workpiece blank is punched and formed between the mold cavity (4) and the punching module. At this time, the air in the mold cavity (4) is pressed into the air channel (22) and stored in the air storage module; The punching force is maintained for a period of time, and then the lifting plate (6) is raised to withdraw the punching module from the mold cavity (4) to facilitate subsequent demoulding of the workpiece; High-pressure air is introduced into the air passage (22), and the high-pressure air is injected into the mold cavity (4) after passing through the one-way valve (23), thereby increasing the pressure between the mold cavity (4) and the workpiece, and the workpiece is pushed out of the mold cavity (4) by the high pressure, thereby completing demoulding; After the workpiece is demoulded, the stored air in the air storage module is discharged from the mold cavity (4) along the air channel (22), so that the workpiece can be stamped and formed again.

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