High-precision punch forming device

Abstract

The invention relates to the technical field of hardware machining equipment, in particular to a high-precision punch forming device. Comprising a machine body and a bottom die assembly. A rotatable workbench is arranged on the machine body, the workbench is provided with four supporting faces, a bottom die assembly is installed on each supporting face, and a feeding device, a jacking device, a grabbing assembly and a smearing assembly are correspondingly arranged on the four supporting faces in the clockwise rotation direction. After a workpiece is placed, the position is adjusted through rotation of the workbench, production is completed in cooperation with machining parts in different areas, the workpiece does not need to be disassembled manually in the process, the machining precision and the production efficiency are greatly improved, and meanwhile the problem that machining depends on experience traditionally is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of hardware processing equipment, and particularly to a high-precision stamping and forming device. Background Art

[0002] Hardware parts are parts formed by metal processing and used for fixing, connecting, and decorating. They are widely used in fields such as automobiles, machinery manufacturing, and small household appliances. They are essential connecting parts, especially important in the internal structure connection of automobiles.

[0003] Currently, in the internal structure connection of automobiles, common workpieces are usually of continuous bending type, and their processing is particularly complex. It requires a variety of equipment and manual operations to cooperate for processing and forming. The processing accuracy is relatively low. In actual production, there is also a high defective rate and operation risks, which are greatly affected by the experience of operators. And during the processing, there are also frequent disassembly, transfer and other processes in the middle, reducing the processing efficiency and quality. When dealing with large batch order production, the problem is more obvious. Summary of the Invention

[0004] The technical problem to be solved by the present invention is, in view of the above-mentioned existing technical deficiencies, to provide a high-precision stamping and forming device. After the workpiece is placed, the position is adjusted by the rotation of the workbench, and the production is completed in cooperation with the processing components in different areas. There is no need for manual disassembly of the workpiece in the middle, greatly improving the processing accuracy and production efficiency, and at the same time solving the problem of traditional processing relying on experience.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is as follows: it includes a machine body and a bottom die assembly; a rotatable workbench is provided on the machine body. The workbench has four support surfaces, and a bottom die assembly is installed on each support surface. Along the clockwise rotation direction, a feeding device, a pressing device, a grasping component, and a coating component are correspondingly arranged on the four support surfaces.

[0006] Preferably, the bottom die assembly includes a base and a half die; a support plate is provided in the middle of the base; the half dies are symmetrically arranged on both sides of the support plate, and a bending cavity is provided on the half die. The two bending cavities form a stamping space for the plate part.

[0007] Preferably, the half die is slidably connected to the base. A retractable magnetic attachment is provided below the support plate. Control members are provided in front of and behind the magnetic attachment, and the control members are respectively in contact with the two half dies to form a sliding connection; a liquid supply ring is provided on the outer circle of the workbench, and the magnetic attachment and the control members are respectively communicated with the inside of the workbench through pipelines.

[0008] Preferably, the feeding device includes a storage box and a sliding frame; on both sides of the bottom of the storage box, a push plate and a support plate are respectively provided, and a driving track is arranged above the support plate; the sliding frame is connected to the driving track, the sliding frame is provided with a working frame that can be lifted in the height direction, and two suction parts are symmetrically arranged on the working frame.

[0009] Preferably, the suction part includes a sliding table and a power assembly; a suction cup part is arranged below the sliding table, and is connected to the power assembly above, and can be displaced longitudinally under the drive of the power assembly, and offset assemblies are symmetrically arranged on both sides of the sliding table.

[0010] Preferably, a ball joint is arranged at the top of one of the suction cup parts, the ball joint is sleeved with the sliding table, and an elastic correction part connected to the sliding table is arranged at the top of the ball joint.

[0011] Preferably, the pressing device includes a power part, an extension frame and a pressing knife; the power part is installed on the left side of the machine body and is fixedly connected to the extension frame; an installation frame is arranged on the right side of the extension frame; the pressing knife is connected to the installation frame by bolts.

[0012] Preferably, the grasping assembly includes a first bracket, a lifting seat and a protruding rod; the first bracket is fixedly connected to the machine body above, a first hydraulic cylinder connected to the upper part of the lifting seat is arranged in the middle of the first bracket; a main shaft is arranged inside the lifting seat, and a push-pull assembly is arranged on one side of the main shaft; the protruding rod is connected to the main shaft and the tail end contacts the push-pull assembly, and a side clamping jaw is arranged at the top of the protruding rod.

[0013] Preferably, the coating assembly includes a second bracket, an intermediate plate, a vertical plate and a scraping head; the second bracket is fixedly connected to the machine body on the right side, and a second hydraulic cylinder is arranged on the second bracket; one side of the intermediate plate is connected to the second hydraulic cylinder, and a third hydraulic cylinder connected to the vertical plate is arranged on the other side; scraping heads are respectively installed at both ends of the vertical plate.

[0014] Preferably, a guiding component for receiving and conveying workpieces is arranged in the discharging direction of the grasping assembly, and a punching component is arranged above the guiding component.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] 1. After the workpiece is placed on the bottom die assembly by the feeding device, the position of the workpiece is adjusted by relying on the rotation of the workbench, and stamping, disassembly and lubrication coating operations are completed, forming a continuous rotary operation process, without manual participation in the middle. Compared with traditional construction, the construction process is greatly reduced, the intermediate time is saved, and the processing accuracy and processing efficiency are effectively improved;

[0017] 2. The overall structural layout is reasonably designed, replacing the traditional mode of cooperative processing with multiple devices. The floor area of the equipment itself is greatly reduced, and the number of workers involved is decreased, reducing production costs and enhancing the competitiveness of the enterprise.

[0018] 3. The feeding device can continuously supply blank materials to the workbench. Compared with manual addition, it is safer to work, the placement position is more accurate, and with the magnetic adsorption accessory, the workpiece can be stabilized in the stamping space, preventing the parts from falling off and improving the stamping accuracy. At the same time, the design of the control part can flexibly control the stability of the formed workpiece.

[0019] 4. The design of the suction part can fine-tune the position of the blank material after adsorption, thus ensuring the accuracy of placement, avoiding affecting the feeding operation. And the connection design of the joint ball at one of the suction cup parts can solve the distance change caused by the position change in the adjustment state, ensuring the stability of adsorption and prolonging the service life of the parts.

[0020] 5. The grasping component can stretch and rotate the angle of the extension rod, and cooperate with the height displacement of the first hydraulic cylinder to grasp and flip the workpiece after stamping and place it at the feeding end of the guiding component to reach the material removal operation. At the same time, with the cooperation of the control part, the reliability of workpiece disassembly and assembly is improved, and interference is avoided.

[0021] 6. The design of the coating component can complete the cleaning and lubricating fluid coating operations of the bending cavity by driving the scraping head to move in and out, improving the stamping accuracy and avoiding workpiece wear.

[0022] 7. The guiding component can transport the workpiece, complete the positioning during the transmission process with the attachment, and assist in achieving stability during the punching operation, achieving synchronous work of transmission and punching to form finished parts, with a clever structural design. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structural layout of a high-precision stamping and forming device;

[0024] Figure 2 Schematic diagram of the connection between the top pressure device and the machine body;

[0025] Figure 3 It is a schematic diagram of the structure at the rear of the machine body;

[0026] Figure 4 It is a schematic diagram of the structure at the cutting tool;

[0027] Figure 5 It is a schematic diagram of the structure of the bottom die assembly;

[0028] Figure 6 It is a schematic diagram of the connection at the control part;

[0029] Figure 7 Schematic diagram of the control part structure

[0030] Figure 8 Schematic diagram of the feeding device structure

[0031] Figure 9 Schematic diagram of the layout of the suction part

[0032] Figure 10 Schematic diagram of the suction part structure

[0033] Figure 11 Schematic diagram of the sliding connection between the sliding table and the side support plate

[0034] Figure 12 Cross-sectional view at the spherical joint

[0035] Figure 13 Schematic diagram of the grasping assembly structure

[0036] Figure 14 Schematic diagram of the layout of the push-pull assembly

[0037] Figure 15 Schematic diagram of the internal connection of the lifting seat

[0038] Figure 16 Schematic diagram of the side jaw structure

[0039] Figure 17 Schematic diagram of the coating assembly structure

[0040] Figure 18 Cross-sectional view at the coating head

[0041] Figure 19 Schematic diagram of the material guiding component structure

[0042] Figure 20 Schematic diagram of the feeding direction of the material guiding component

[0043] Figure 21 Cross-sectional view of the guide rod

[0044] Figure 22 Cross-sectional view of the attachment

[0045] Figure 23 Schematic diagram of the workpiece forming state

[0046] In the figure: 1, body; 2, bottom die assembly; 3, feeding device; 4, top pressing device; 5, grasping assembly; 6, smearing assembly; 7, sucking part; 8, pushing and pulling assembly; 9, side clamping jaw; 10, material guiding part; 11, punching assembly; 12, detector; 101, workbench; 102, supporting surface; 103, liquid supply ring; 201, base; 202, half die; 203, support plate; 204, bending cavity; 205, magnetic adsorbing part; 206, control part; 301, storage box; 302, sliding frame; 303, push plate; 304, pallet; 305, driving track; 306, working frame; 401, power part; 402, extension frame; 403, pressing knife; 404, mounting frame; 501, first bracket; 502, lifting seat; 503, extending rod; 504, first hydraulic cylinder; 505, main shaft; 601, second bracket; 602, intermediate plate; 603, vertical plate; 604, scraping head; 605, second hydraulic cylinder; 606, third hydraulic cylinder; 701, sliding table; 702, power assembly; 703, suction cup part; 704, offset assembly; 705, joint ball; 706, correcting part; 707, fifth hydraulic cylinder; 708, side support plate; 709, return spring; 801, side push plate; 802, transmission screw; 901, housing; 902, jaw frame; 903, trigger frame; 904, trigger block; 905, tension spring; 1011, guide rod; 1012, conveyor belt; 1013, attaching part; 1014, reset plate; 1015, electromagnetic part; 1016, ball; 1017, side friction part; 1018, lubricating groove; 1019, intermediate column; 1020, first magnetic disk; 1021, second magnetic disk; 1101, fourth hydraulic cylinder; 1102, drill rod; 1103, driving motor; 6041, scraping head; 6042, liquid supply cavity; 6043, negative pressure cavity; 6044, elastic opening and closing plate. Detailed implementation manners

[0047] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with the specific implementation manners and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present invention. In addition, in the following descriptions, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0048] In traditional construction operations, the metal plate is cut into Figure 23In the first state, it is a long strip-shaped rectangular flat plate. Subsequently, the staff places the plate into the stamping equipment, starts the stamping equipment to complete stamping, and then takes it out by hand or special tools. After transporting it to the next process, the workpiece is positioned using a fixture, and then drilling is completed for processing. Among them, in traditional processing, dry stamping is relatively less used. The workpiece is prone to wear, and the mold needs to be specially designed. Although the cost is relatively low, the defective rate is relatively high. When using wet stamping, the lubricating oil path is usually integrally designed inside the mold, which is more costly, and there is a situation of blockage, making maintenance difficult, and there are also problems with difficult cleaning. After using wet stamping, after taking out the workpiece from the stamping equipment, manual cleaning is required to avoid the influence of metal particles or impurities on subsequent stamping and to keep the oil path unobstructed. Moreover, the use of multiple devices has, on the one hand, the problem of a large floor area, and on the other hand, it also complicates the process. And frequent installation and disassembly during processing require relatively high experience from the operators. In the case of low experience, both the processing accuracy and processing quality will be affected, and its processing efficiency is affected by its own proficiency and processing duration, restricting production.

[0049] Specific Embodiment 1: As shown in Figures 1 - 22 A high-precision stamping and forming device includes: a machine body 1 and a bottom die assembly 2. There is a rotatable workbench 101 on the machine body 1. The middle position of the outer circle of the workbench 101 has teeth, and it is driven by being connected to the motor on the machine body 1. At the same time, there are four support surfaces 102 for installing the bottom die assembly 2 inside the workbench 101. Along the clockwise rotation direction of the workbench 101, a feeding device 3, a pressing device 4, a grasping assembly 5, and a coating assembly 6 are correspondingly arranged on the four support surfaces 102. The stacked blank raw materials are placed into the feeding device 3, and the feeding operation can be realized within a certain time. At the same time, when the bottom die assembly with the blank raw materials rotates 90 degrees to the position of the pressing device 4, the feeding device 3 continues to load the next bottom die assembly 2, and the pressing device 4 completes stamping during this process. Subsequently, the workbench 101 continues to rotate 90 degrees, the grasping assembly 5 takes out the stamped workpiece, and continues to rotate 90 degrees. The coating assembly 6 cleans the used stamping space, realizing a processing cycle, greatly improving the processing efficiency, avoiding operation risks, solving the problem of intermediate transfer and disassembly, reducing the processing process, and improving the processing accuracy.

[0050] In a preferred embodiment, as shown in Figure 5As shown, the bottom die assembly 2 includes a base 201 and half dies 202. The base 201 is fixed to the support surface 102 by screws. A support plate 203 is provided in the middle of the base 201 to achieve contact support for the bottom surface of the workpiece during stamping. The half dies 202 are symmetrically arranged on both sides of the support plate 203, and a bending cavity 204 is provided on the half die 202. The two bending cavities 204 form a stamping space for the sheet metal. After the workpiece is placed in, the two sides of the workpiece blank raw material are supported and positioned by the bending cavity 204, and the middle part is in a suspended state. Then, under the stamping action, the finished product structure can be formed.

[0051] In a preferred embodiment, in combination with Figures 5 - 7 As shown, the half die 202 is slidably connected to the base 201. The base 201 has a dovetail groove structure to achieve the sliding connection between the two. A telescopic magnetic attachment 205 is provided below the support plate 203. The magnetic attachment 205 is composed of a hydraulic cylinder and a magnetic head on the push rod. At the maximum stroke, the upper surface of the magnetic head is basically flush with the upper surface of the support plate 203. At the same time, control members 206 are provided in front of and behind the magnetic attachment 205. The two sides of the control member 206 have inclined slopes, and the contact position of the half die 202 has a guiding surface adapted to the slope. Moreover, a T-shaped slider is provided on the slope to maintain the connection stability after contacting the half die 202. A liquid supply ring 103 is provided on the outer circle of the workbench 101. Pipelines are provided in the four directions of up, down, left, and right of the liquid supply ring 103. At the same time, a communication channel is provided inside the workbench 101, which is respectively connected to the hydraulic cylinders of the control member 206 and the magnetic attachment 205. When rotated to a specified angle, the hole positions of the communication channel on the workbench 101 are communicated with the hole positions at the liquid supply ring 103, so as to realize liquid supply or drainage operations, for controlling the actions of the magnetic attachment 205 and the control member 206, and does not affect the normal rotation of the workbench 101. Among them, in order to maintain the seal at the connection position between the workbench 101 and the liquid supply ring 103 and avoid oil leakage, a sealing ring can be arranged on the inner circle of the liquid supply ring 103. The sealing ring is in contact connection with the workbench 101, which can effectively improve the overall sealing effect. And at the inlet and hole position of the communication channel, a sealing ring structure can also be added to improve the sealing effect.

[0052] In a preferred embodiment, in combination with Figures 8 - 11As shown in the figure, the feeding device 3 includes a storage bin 301 and a sliding frame 302. On both sides of the bottom of the storage bin 301, there are respectively a push plate 303 and a support plate 304. The push plate 303 is connected to the hydraulic cylinder on the storage bin 301. At the same time, the width of the push plate 303 is greater than the width of the internal storage space of the storage bin 301, so as to avoid interference with the raw materials above when pushing the blank raw materials out. Above the support plate 304, there is a driving track 305. The driving track 305 includes a threaded rod and two cylindrical rods arranged on both sides of the threaded rod. The end of the threaded rod is connected to the motor. The middle part of the sliding frame 302 is threadedly connected to the threaded rod, and both sides are slidably connected to the cylindrical rods. By driving the threaded rod to rotate by the motor, the position of the sliding frame 302 can be adjusted. And adopting the transmission form of the threaded rod, the precision is higher, which can ensure the placement precision of the raw materials, and the transmission is more stable. Both sides of the working frame 306 are connected to the sliding frame 302 through two hydraulic cylinders. Under the push of the hydraulic cylinders, the lifting operation of the working frame 306 can be realized. At the same time, two suction parts 7 are symmetrically arranged on the working frame 306. By generating negative pressure suction, the grasping operation of the raw materials can be realized, and the response speed is fast.

[0053] In a preferred embodiment, in combination with Figure 10 and Figure 11 As shown in the figure, the suction part 7 includes a sliding table 701 and a power assembly 702. There are two corresponding chutes at both sides of the working frame 306. At the same time, a suction cup part 703 is provided below the sliding table 701. The suction cup part 703 adopts a traditional controllable suction cup structure. The suction cup part 703 is connected to the power assembly 702 above. The power assembly 702 includes a motor, a worm and worm gear, and a driving wheel. The motor is installed on the working frame 306 and is connected to the worm. One end of the worm gear is installed on the driving wheel shaft. Through the meshing of the worm and worm gear, the driving of the sliding table 701 can be realized to complete the longitudinal displacement. In order to realize the lateral fine adjustment, offset assemblies 704 are installed on both sides of the chute. The sliding table 701 is slidably connected to the offset assemblies 704. And there are multiple detectors 12 on the sliding frame 302. It can be judged whether there is skew by detecting whether there is interference between the detector 12 and the edge of the raw material. After skew, with the cooperation of the offset assemblies 704 and the power assembly 702, the lateral or longitudinal adjustment can be completed to ensure that the position of the raw material is accurate and reliable during placement.

[0054] In a preferred embodiment, in combination with Figure 11As shown in the figure, the offset component 704 includes a fifth hydraulic cylinder 707 and a side support plate 708; the fifth hydraulic cylinder 707 is installed below the working frame 306, close to the edge of the chute. The side support plate 708 is fixedly connected to the push rod of the fifth hydraulic cylinder 707. There are two sliding rods on both sides of the side support plate 708. The sliding rods penetrate through the working frame 306 to form a sliding connection. A return spring is installed in the area between the side support plate 708 and the chute to achieve the function of stable reset. By pushing one of the fifth hydraulic cylinders 707 and the other contracting in cooperation, the lateral translation of the side support plate 708 can be realized, achieving the function of lateral adjustment and enhancing the practicability of adjusting the blank raw material.

[0055] Preferred embodiment, combined with Figure 12 As shown in the figure, when there is a longitudinal misalignment adjustment between the two suction parts 7 or one of them is adjusted separately, the top of one of the suction cup parts 703 is processed into a spherical joint 705 shape. The spherical joint 705 is sleeved with the sliding table 701, and an elastic correction part 706 connected to the sliding table 701 is provided at the top of the spherical joint 705. The elastic correction part 706 adopts a spring structure and can play a role in resetting. Through the above design, the current suction cup part 703 can be adaptively twisted, so as to maintain the stable suction of the raw material during the adjustment process and reduce the operation difficulty.

[0056] Preferred embodiment, combined with Figure 2 and Figure 4 As shown in the figure, the pressing device 4 includes a power part 401, an extension frame 402 and a pressing knife 403; the power part 401 adopts a hydraulic cylinder structure and is installed on the left side of the machine body 1. The push rod of the hydraulic cylinder is fixedly connected to the extension frame 402. The extension frame 402 itself penetrates through the left side position of the machine body 1 to form a sliding connection. At the same time, an installation frame 404 is provided on the right side of the extension frame 402; the pressing knife 403 is bolted to the installation frame 404, which is convenient for replacing the pressing knife 403. During stamping, the extension frame 402 is pulled by the hydraulic cylinder to displace, so that the pressing knife 403 cooperates with the bottom die assembly 2 to complete the stamping operation.

[0057] Preferred embodiment, combined with Figure 4 As shown in the figure, as a preferred structure of the installation frame 404, there are two adjusting rods on the installation frame that are slidably connected to the extension frame 402. Springs are sleeved on the adjusting rods, and the installation frame 404 is at a certain distance from the right side of the extension frame 402 to form an elastic support. In this way, during the stamping process, the requirement for operation accuracy can be reduced. After the stamping is in place, as the acting force continues to be applied, by overcoming the elastic force of the spring, the structure damage can be avoided, the operation stability can be improved, and long-term stamping operations can be satisfied without worrying about accuracy problems.

[0058] Preferred embodiment, combined with Figures 13 - 15As shown, the grasping component 5 includes a first bracket 501, a lifting seat 502, and an extension rod 503. The upper part of the first bracket 501 is fixedly connected to the body 1. A first hydraulic cylinder 504 connected to the upper part of the lifting seat 502 is provided in the middle of the first bracket 501. A displacement channel is provided below the first bracket 501, and the lifting seat 502 is slidably connected to the displacement channel. A main shaft 505 is provided inside the lifting seat 502. The main shaft 505 adopts the structure of a spline shaft, and a push-pull component 8 is provided on one side of the main shaft 505. The extension rod 503 is sleeved on the main shaft 505, and a circular ring groove is provided at the tail end. The circular ring groove contacts the push-pull component 8. Under the action of the push-pull component 8, the extension rod 503 can be driven to achieve axial displacement without affecting the rotation of the extension rod 503. A side clamping jaw 9 is provided at the top of the extension rod 503. During operation, the first hydraulic cylinder 504 drives the lifting seat 502 to first move upward by a certain distance, so that the grasping part of the side clamping jaw 9 enters the stamping space, and then the workpiece is grasped. Cooperating with the control member 206 to open, the workpiece can be smoothly taken out. During the descending process, the motor drives the main shaft 505 to rotate 180 degrees to complete the flipping of the workpiece. On the one hand, the spatial state of the workpiece is adjusted so that it can enter the material guiding component 10, and on the other hand, interference with the first bracket 501 can be avoided.

[0059] Preferred embodiment, in combination with Figure 14 and Figure 15 As shown, the push-pull component 8 includes a side push plate 801 and a transmission screw 802. The two ends of the transmission screw 802 are rotatably connected to the lifting seat 502 and are connected to the motor through a belt and a pulley. The center of the side push plate 801 is threadedly connected to the transmission screw 802, and a protrusion is provided at the outer circle position. The protrusion contacts the circular ring groove. At the same time, a notch is provided on the lifting seat 502, and the notch also contacts the protrusion to maintain the guiding and positioning of the side push plate 801.

[0060] Preferred embodiment, in combination with Figure 16As shown in the figure, the side gripper 9 includes a housing 901, a gripper frame 902, a trigger frame 903 and a trigger block 904; the housing 901 is fixed to the end of the extending rod 503. Inside the housing 901, the gripper frame 902 and the trigger frame 903 are symmetrically arranged. The gripper frame 902 is slidably connected to the side of the housing 901. The left side of the gripper frame 902 has a grasping plate extending upward, and the grasping plate has magnetism or is made of a magnetic material. The left side of the trigger frame 903 is connected to the right side of the gripper frame 902. At the same time, the right side of the trigger frame 903 has a guiding inclined block, and a tension spring 905 is installed between the two trigger frames 903 to maintain the connection with the trigger block 904. The trigger block 904 is driven by a hydraulic cylinder structure. Through the pushing displacement, the two gripper frames 902 are displaced to both sides, and the workpiece is clamped and positioned by using the grasping plate. And with its own magnetic design, it can also meet the grasping operations of L-shaped or Z-shaped workpieces, improving the scope of application.

[0061] In a preferred embodiment, as a preferred structure of the trigger frame 903, in combination with Figure 16 As shown in the figure, the trigger frame 903 further includes two left and right frame bodies, namely a left frame body and a right frame body. The left frame body is composed of two support rods. One end of the support rod is fixed to the gripper frame 902 by a double nut, and the other end is slidably connected to the right frame body, and a force-bearing spring in contact with the right frame body is provided. The guiding inclined block is fixed on the right frame body. During the clamping process, by compressing the force-bearing spring, a safety displacement space is reserved, which plays a function of protecting the structural safety.

[0062] For further optimization, in order to improve the support stability of the trigger frame 903 and reduce the force on the gripper frame 902 itself, an auxiliary rod is fixed at the position of the right frame body. The auxiliary rod is slidably connected to the housing 901, playing a role of positioning and supporting, and optimizing the structural stability.

[0063] In a preferred embodiment, in combination with Figure 17 and Figure 18As shown in the figure, the smearing component 6 includes a second support 601, an intermediate plate 602, a vertical plate 603 and a scraping head 604; the right side of the second support 601 is fixedly connected to the machine body 1, and a second hydraulic cylinder 605 is provided on the second support 601; one side of the intermediate plate 602 is fixedly connected to the push rod of the second hydraulic cylinder 605, and a third hydraulic cylinder 606 connected to the vertical plate 603 is provided on the other side; scraping heads 604 are respectively installed at both ends of the vertical plate 603, and the distance between the two scraping heads 604 is equal to the size of the middle part of the workpiece after stamping. During operation, the second hydraulic cylinder 605 drives the whole to contract and displace, and when reaching the designated position, at this time the scraping head 604 is at the front end of the bending cavity 204. Subsequently, the third hydraulic cylinder 606 is started to push the scraping head 604 into the bending cavity 204 and contact with the side wall position of the bending cavity 204. During the pushing process, the residual lubricating fluid is scraped off, and when resetting, the smearing of the new lubricating fluid is completed. Adopting the form of one push and one smear, the operation of the bending cavity 204 is quickly completed, improving the work efficiency.

[0064] In a preferred embodiment, in combination with Figure 18 As shown in the figure, at the contact position between the scraping head 604 and the side wall of the bending cavity 204, there is a scraping head 6041, such as a strip-shaped structure made of plastic or rubber material. During the pushing process, it can scrape off the residual lubricating fluid attached to the surface wall. At the same time, on one side of the scraping head 6041, there is a working surface that shrinks inward by a certain distance, and there is a supply channel jointly composed of a negative pressure cavity 6043 and a liquid supply cavity 6042. At the same time, at the connection position between the negative pressure cavity 6043 and the supply channel, there is an elastic opening and closing plate 6044, and the elastic opening and closing plate 6044 inclines towards the inside of the negative pressure cavity 6043. The connection between the liquid supply cavity 6042 and the supply channel has a throttling hole with a trapezoidal cross-section, which can control the occurrence of oil fluid misflow and improve the stability of the structure. During the cleaning work, the negative pressure cavity 6043 generates negative pressure suction, driving the elastic opening and closing plate 6044 to open at a certain angle, and the scraped oil fluid is pumped back through the supply channel to achieve collection and cleaning. At this time, the liquid in the liquid supply cavity 6042 is not connected to the atmosphere and maintains air pressure balance, which can avoid new oil fluid entering the supply channel during the liquid pumping process. During the pulling-back and smearing process, the liquid supply cavity 6042 works to inject oil fluid into the supply channel. During the movement, a layer of oil fluid is smeared by using the height difference between the plane and the scraping head 6041. The design is ingenious; among them, the elastic opening and closing plate 6044 can be made of a relatively thin spring sheet, which opens under negative pressure and resets after losing suction. For the pollution problem brought by the shared supply channel, after detection, due to the limited length of the supply channel and the surface being polished smooth or a hydrophobic coating being laid, it can be basically completely removed.

[0065] In combination with Figure 18As shown, during the liquid discharging process, some oil will eventually remain in the supply channel. On the one hand, a residual liquid recovery device can be designed at the end of the negative pressure chamber 6043, or the length of the supply channel can be shortened to reduce waste, both of which are feasible. Without any changes, the overall loss is also within a controllable range.

[0066] Combined with Figure 18 As shown, as a structural optimization, the supply channel can be divided into two parts. One part is connected to the negative pressure chamber 6043, and the other part is connected to the liquid supply chamber 6042, operating independently. However, compared with sharing, on the one hand, there is a problem of increased volume, and on the other hand, the working speed becomes slower.

[0067] Combined with Figure 3 As shown, a guiding component 10 for receiving and conveying workpieces is provided in the discharging direction of the grasping component 5, and a punching component 11 is arranged above the guiding component 10. The two cooperate to complete the punching operation on both sides of the workpiece during the conveying process, forming a complete production process, eliminating the need for additional processing operations, and completely solving the problem of reduced accuracy caused by manual disassembly and assembly operations.

[0068] In a preferred embodiment, combined with Figure 3 As shown, the punching component 11 includes a fourth hydraulic cylinder 1101, a drill rod 1102, and a driving motor 1103. The fourth hydraulic cylinders 1101 are arranged in pairs above the machine body 1, and the push rod of each fourth hydraulic cylinder 1101 is rotationally connected to the top end of the drill rod 1102. The bottom end of the drill rod 1102 has a drill bit, and the middle part is in the form of a spline shaft. At the same time, there should be a gear on the machine body 1 connected to the middle part of the drill rod 1102. The driving motor 1103 is also fixed on the machine body 1 and is connected to the gear at the drill rod 1102 through a gear to form power transmission. When the drill rod 1102 rotates, the fourth hydraulic cylinder 1101 pushes the drill rod 1102 downward to complete the punching operation.

[0069] In a preferred embodiment, combined with Figures 19 - 20As shown in the figure, the material guiding component 10 includes guide rods 1011, a conveyor belt 1012, and an electromagnetic component 1015. A total of three guide rods 1011 are used as a whole and are arranged in a triangular form. The two upper guide rods 1011 are provided with cross-connecting frames connected to the body 1. The length of the lower guide rod 1011 is greater than that of the two upper guide rods 1011, and the discharge end is provided with a tail plate connected to the body 1. The two upper guide rods 1011 respectively support the bent parts on both sides of the workpiece, and the lower guide rod 1011 contacts the upper surface of the middle part of the workpiece, forming a three-point positioning. A conveyor belt 1012 is installed on the cross-connecting frame. Attachment members 1013 are arranged at equal intervals on the surface of the conveyor belt 1012, and a reset plate 1014 is provided at the cross-connecting frame at the discharge end, which can perform a reset operation on the attachment members 1013. The electromagnetic component 1015 is installed at the cross-connecting frame at the feed end. During operation, the gripping component 5 places the bent workpiece on the guide rods 1011 through translation. Then, when the attachment members 1013 move to both sides of the workpiece during the rotation of the conveyor belt 1012, the electromagnetic component 1015 is activated to generate a reverse magnetic force, pushing the magnetic components inside the attachment members 1013 to contact the workpiece, and adsorbing and positioning the side of the workpiece by relying on the magnetic force. Thus, during the subsequent rotation of the conveyor belt 1012, the workpiece is driven to move, and when it intermittently moves to the designated position, the punching component 11 completes the punching operation. The three-point positioning mode of the guide rods 1011 can maintain the stability during punching while ensuring smooth transmission, with a reliable structure. When it moves to the discharge end, as the directions of the two attachment members 1013 change, it is separated from the workpiece, and the reset plate 1014 is used to realize the reset operation of the magnetic components, with a clever structure. And because the lengths of the two upper guide rods 1011 are shorter than that of the lower guide rod 1011, the workpiece can directly fall off, or fall off under the push of the subsequent workpiece, forming a complete processing production line.

[0070] Preferred embodiment, combined with Figure 21 As shown in the figure, in order to improve the flexibility of the workpiece during movement and reduce the friction, a plane is machined on the guide rod 1011, and balls 1016 are arranged at equal intervals along the axial direction to form rolling friction, effectively reducing the frictional resistance. Side friction members 1017 are provided on one side of the two upper guide rods 1011 and are made of plastic material, which can effectively avoid scratching the workpiece during the displacement process. Among them, the balls 1016 of the lower guide rod 1011 should point downward.

[0071] Preferred embodiment, combined with Figure 21As shown in the figure, in order to further improve the flexibility of the ball 1016, a lubricating groove 1018 is arranged inside the guide rod 1011. By injecting lubricating oil into the lubricating groove 1018, it can play a lubricating role, improve the service life, reduce friction. And in order to prevent the lubricating oil from contaminating the workpiece, a sealing ring structure should be installed at the top position where the guide rod 1011 contacts the ball 1016 to scrape the lubricating oil on the surface of the ball 1016 and prevent it from being brought into the outside to contaminate the workpiece.

[0072] Preferred embodiments are combined with Figure 22 As shown in the figure, the magnetic components inside the attachment 1013 include an intermediate column 1019 and a first disk 1020; the intermediate column 1019 is slidably connected to the attachment 1013, and the first disk 1020 is connected to the right side of the intermediate column 1019, that is, close to the conveyor belt 1012 end. A second disk 1021 is provided on the left side of the intermediate column 1019. When the electromagnetic component 1015 works, it generates a thrust on the first disk 1020 to realize the adsorption and positioning of the workpiece by the second disk 1021, and retracts when it is displaced to the reset plate 1014.

[0073] In summary, relying on the change of the position of the workbench, the present invention can realize synchronous operation of multiple workstations, greatly improve the simultaneous operation ability, improve work efficiency, and when the pressing device 4, the grasping component 5, etc. are in the central area of the workbench 101, it will not interfere with the rotation of the workbench 101. From the raw material feeding to the production and forming, no manual participation is required in the middle, avoiding the positioning error caused by disassembly and assembly. And during the bending process, with the cooperation of the lubricating liquid, the processing accuracy is effectively improved, avoiding operation risks, meeting the requirements of mass production, reducing the construction process, omitting a large amount of working time in the middle, and the equipment structure is compact, reducing the use of floor area, having high promotion value and economic value.

[0074] It should be understood that the above specific embodiments of the present invention are only used for exemplary illustration or explanation of the principle of the present invention, and do not constitute a limitation to the present invention. Therefore, any modifications, equivalent replacements, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundary of the appended claims, or equivalent forms of such scope and boundary.

Claims

1. A high-precision stamping device, characterized in that: include: A machine body (1) and a bottom mold assembly (2); a rotatable workbench (101) is provided on the machine body (1), the workbench (101) has four supporting surfaces (102), and each supporting surface (102) is mounted with a bottom mold assembly (2); in a clockwise rotation direction, a feeding device (3), a pressing device (4), a grabbing assembly (5) and a coating assembly (6) are correspondingly arranged on the four supporting surfaces (102).

2. A high-precision stamping device according to claim 1, characterized in that: The bottom mold assembly (2) comprises a base (201) and a half mold (202); a support plate (203) is provided in the middle of the base (201); half molds (202) are symmetrically arranged on both sides of the support plate (203), and a bending cavity (204) is provided on the half mold (202), and the two bending cavities (204) form a stamping space for a plate.

3. A high-precision stamping device according to claim 2, characterized in that: The half mold (202) and the base (201) are slidably connected, a retractable magnetic adsorption component (205) is provided below the support plate (203), a control component (206) is provided in front and rear of the magnetic adsorption component (205), and the control component (206) is respectively in contact with the two half molds (202) to form a slidable connection; a liquid supply ring (103) is provided on the outer circle of the workbench (101), and the magnetic adsorption component (205) and the control component (206) are respectively connected to the inside of the workbench (101) through pipelines.

4. A high-precision stamping device according to claim 1, characterized in that: The feeding device (3) comprises a material storage box (301) and a sliding frame (302); a push plate (303) and a support plate (304) are respectively provided on both sides of the bottom of the material storage box (301), and a driving track (305) is provided above the support plate (304); the sliding frame (302) is connected to the driving track (305), and the sliding frame (302) is provided with a working frame (306) that can be raised and lowered in a height direction, and two suction parts (7) are symmetrically provided on the working frame (306).

5. A high-precision stamping device according to claim 4, characterized in that: The suction part (7) comprises a slide (701) and a power assembly (702); a suction cup member (703) is provided below the slide (701), and is connected to the power assembly (702) above and can be displaced in the longitudinal direction under the drive of the power assembly (702); and offset assemblies (704) are symmetrically provided on both sides of the slide (701).

6. A high-precision stamping device according to claim 5, characterized in that: A joint ball (705) is provided on the top of one of the suction cup parts (703), the joint ball (705) and the slide table (701) are sleeved, and an elastic correction part (706) connected to the slide table (701) is provided on the top of the joint ball (705).

7. A high-precision stamping device according to claim 1, characterized in that: The pressing device (4) comprises a power piece (401), an extension frame (402) and a pressing knife (403); the power piece (401) is installed on the left side of the machine body (1) and is fixedly connected to the extension frame (402); a mounting frame (404) is provided on the right side of the extension frame (402); and the pressing knife (403) and the mounting frame (404) are connected by bolts.

8. The high-precision stamping device according to claim 1, characterized in that: The grabbing assembly (5) comprises a first bracket (501), a lifting seat (502) and an extension rod (503); the first bracket (501) is fixedly connected to the machine body (1) at the top, and a first hydraulic cylinder (504) connected to the top of the lifting seat (502) is provided in the middle of the first bracket (501); a main shaft (505) is provided inside the lifting seat (502), and a push-pull assembly (8) is provided at one side of the main shaft (505); the extension rod (503) is connected to the main shaft (505), and the rear end is in contact with the push-pull assembly (8), and a side clamping claw hand (9) is provided at the top of the extension rod (503).

9. The high-precision stamping device according to claim 1, characterized in that: The coating assembly (6) comprises a second bracket (601), an intermediate plate (602), a vertical plate (603) and a coating scraper (604); the right side of the second bracket (601) is fixedly connected to the machine body (1), and a second hydraulic cylinder (605) is provided on the second bracket (601); one side of the intermediate plate (602) is connected to the second hydraulic cylinder (605), and the other side is provided with a third hydraulic cylinder (606) connected to the vertical plate (603); and coating scrapers (604) are respectively installed at both ends of the vertical plate (603).

10. The high-precision stamping device according to claim 1, characterized in that: A material guiding component (10) for receiving and conveying workpieces is provided in the material discharging direction of the grabbing component (5), and a punching component (11) is arranged above the material guiding component (10).

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