Copper-based friction plate hot press forming device

Abstract

The invention discloses a copper-based friction plate hot press forming device, and relates to the technical field of press machines. The device comprises a machine frame, an upper die is installed on the machine frame through a hydraulic rod, and a lower die is installed on the machine frame. When the device is used, an upper mold and a lower mold are closed through a hydraulic rod, then metal powder is discharged into a forming groove through a flow channel, after the metal powder is discharged, the mold is preheated through a steam pipe, meanwhile, a pushing rod is pushed through steam, the pushing rod slides on a bearing plate, and the metal powder is discharged through the flow channel; when the push rod moves to the position where the notch is located outside the shielding barrel, the force applied to the push rod by the steam dispersed into the sliding cavity is reduced, the connecting spring pushes the bearing plate to reset, and the bearing plate can slide in the sliding cavity in a reciprocating mode, so that the metal powder is conveniently shaken up, and the possibility that air exists among the metal powder is reduced; the possibility that a cavity is formed in the friction plate after the friction plate is formed is reduced, and the practicability of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of presses, and in particular to a hot pressing forming device for a copper-based friction plate. Background Art

[0002] Friction plates are key components in mechanical transmission systems used to transmit or block power through friction. They are usually made of materials with high friction coefficients, such as copper-based friction plates and paper-based friction plates. In the preparation of copper-based friction plates, various prepared metal powders are directly extruded into shape and then heated to form hard friction plates. When extruding the metal powder, a press is required.

[0003] In the prior art, metal powder is discharged into the mold of a press through a flow channel, and then the upper and lower molds are pressurized by the press to squeeze the metal powder into shape. However, when the metal powder is poured into the mold, gaps are easily formed between the metal powders, causing air to enter the mold. As a result, a hollow cavity appears inside the friction plate after it is formed, resulting in an unqualified product and a waste of materials and time.

[0004] Therefore, the present invention proposes a copper-based friction plate hot pressing forming device to improve this problem. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the above-mentioned background technology, and provide a copper-based friction plate hot pressing forming device.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions: A copper-based friction plate hot pressing forming device, comprising: A frame on which an upper die is mounted via a hydraulic rod, a lower die is mounted on the frame, and a flow channel and a sliding cavity communicating with each other are formed on the lower die; A carrying plate is slidably mounted in the sliding cavity, wherein a forming groove communicating with the flow channel is formed on the carrying plate, and an extrusion plate for being inserted into the forming groove is mounted on the upper die; The driving part includes a steam pipe installed on the frame, one end of the steam pipe passes through the lower mold and is located in the sliding cavity, a connecting spring is installed between the supporting plate and the inner wall of the sliding cavity, a push rod is slidably installed in the steam pipe, the free end of the push rod is connected to the supporting plate, a rod cavity connected to the steam pipe is provided on the push rod, a notch passing through the push rod is provided on the push rod, and a blocking cylinder for blocking or unblocking the notch is installed in the sliding cavity.

[0007] Furthermore, an elastic sheet is installed on the side wall of the flow channel, the free end of the elastic sheet is connected to the supporting plate and is located in the forming groove, and a plurality of extension grooves are opened on the elastic sheet. When the supporting plate slides, the diameter of the extension groove increases or decreases, so that the length of the elastic sheet increases or decreases.

[0008] Furthermore, the sliding cavity includes a movement cavity and a reset cavity, the height of the bottom of the inner wall of the movement cavity is lower than the height of the bottom of the inner wall of the reset cavity, a connecting rod is rotatably installed in the movement cavity through a torsion spring, and a tapping roller is rotatably installed on the connecting rod.

[0009] Furthermore, an accommodating cavity is provided on the supporting plate, and an ejector plate is slidably installed in the accommodating cavity through an extrusion spring. An ejector rod is installed on the ejector plate and slides through the supporting plate. The free end of the ejector rod is located in the molding groove. A protruding rod is installed on the ejector plate, and the protruding rod passes through the supporting plate and is located on the outside. When the upper mold is connected to the lower mold, the upper mold applies a force on the protruding rod to force the extrusion spring to be compressed.

[0010] Furthermore, a sliding block is slidably installed on the upper mold, a hinged rod is hinged on the telescopic end of the hydraulic rod, the free end of the hinged rod is hinged to the sliding block, a tilting plate is hinged on the frame, the lower mold is installed on the tilting plate, a support plate is slidably installed on the frame, and a transmission rod slidably connected to the hydraulic rod is installed on the support plate.

[0011] Furthermore, an installation cavity is opened on the frame, an outer cylinder is installed in the installation cavity, a support rod is slidably installed in the outer cylinder through a support spring, and the support plate is connected to the support rod.

[0012] Furthermore, a guide rod is installed on the supporting plate, a connecting spring is sleeved on the outside of the guide rod, and a guide hole for accommodating the guide rod is opened on the lower mold.

[0013] Furthermore, the free end of the guide rod slides through the guide hole and passes through the lower mold located on the outside. A table block is installed on the tilting plate, and a clamping block is slidably installed on the table block. There are two clamping blocks, and a clamping groove for accommodating the steam pipe and the guide rod is provided on the clamping block. A pull rod is hinged on the clamping block, and an insertion rod is movably installed on the free end of the pull rod. The free ends of the pull rods on the two clamping blocks are movably matched with the insertion rod, and an insertion hole for accommodating the insertion rod is provided on the table block.

[0014] Furthermore, a rubber block is installed on the support plate, and the rubber block is used to contact the dumping plate.

[0015] Furthermore, a sliding path is provided in the sliding cavity, and a rolling ball is rotatably mounted on the bottom of the bearing plate and is in rolling cooperation with the sliding path.

[0016] The beneficial effects of the present invention are as follows: 1. When the present invention is in use, the upper mold and the lower mold are first closed by the hydraulic rod, and then the metal powder is discharged into the forming groove through the runner. After the metal powder is discharged, the mold is preheated through the steam pipe and the push rod is pushed by steam, so that the push rod drives the supporting plate to slide. When the push rod moves to the point where the gap is outside the shielding cylinder, the steam diffuses into the sliding cavity and the force exerted on the push rod is reduced. The connecting spring pushes the supporting plate to reset. The supporting plate can slide back and forth in the sliding cavity, which is convenient for shaking the metal powder, reducing the possibility of air between the metal powders, reducing the possibility of cavity formation inside the friction plate after molding, and increasing the practicality of the device.

[0017] 2. In the present invention, when the upper mold and the lower mold are in the process of closing the mold, the upper mold presses the protruding rod, thereby causing the protruding rod to drive the ejector plate to slide downward. When the mold closing is completed, the ejector rod drops until its top is flush with the bottom of the inner wall of the forming groove. When the friction plate is initially formed by extrusion, it needs to be taken out. The hydraulic rod pulls the upper mold away from the lower mold, so that the upper mold releases the pressure on the protruding rod, thereby resetting the extrusion spring and pushing the ejector plate, so that the ejector plate pushes the formed friction plate, so that the friction plate can be separated from the forming groove. After the pressing is completed and the device is opened, the friction plate is directly ejected by the ejector rod, which facilitates the removal of the friction plate and increases the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the structure of the dumping plate and the hydraulic rod of the present invention; Figure 3 This is a schematic diagram of the structure of the pouring plate of the present invention; Figure 4 This is a schematic diagram of the lower mold structure of the present invention; Figure 5 This is a schematic diagram of the structure of the connecting rod of the present invention; Figure 6 It is a schematic diagram of the structure of the load-bearing plate of the present invention; Figure 7 This is another schematic diagram of the lower mold structure of the present invention; Figure 8 It is a schematic structural diagram of the elastic sheet of the present invention; Figure 9 It is an exploded view of part of the structure of the present invention; Figure 10 This is an exploded view of the structure on the support plate of the present invention; Figure 11 This is an exploded view of the structure on the platform block of the present invention; Figure 12 Schematic diagram of the ejector plate structure of the present invention; Figure 13It is a three-dimensional sectional view of the upper mold of the present invention; Figure 14 It is a three-dimensional cross-sectional view of the load-bearing plate structure of the present invention; Figure 15 This invention Figure 14 Enlarged view of point A in the middle.

[0019] Figure 1: Frame; 101: Hydraulic rod; 2: Upper die; 3: Lower die; 301: Runner; 302: Sliding cavity; 3021: Movement cavity; 3022: Reset cavity; 4: Loading plate; 401: Forming groove; 402: Extrusion plate; 403: Accommodation cavity; 404: Extrusion spring; 405: Ejector plate; 406: Ejector rod; 407: Protruding rod; 5: Driving member; 501: Steam pipe; 502: Push rod; 503: Connecting spring; 504: Rod cavity; 505: Notch; 506: Shielding cylinder; 6: Spring 7. Extension groove; 8. Torsion spring; 9. Connecting rod; 10. Beating roller; 11. Sliding block; 12. Articulated rod; 13. Tipping plate; 14. Support plate; 15. Transmission rod; 16. Mounting cavity; 1601. Outer cylinder; 1602. Support spring; 1603. Support rod; 17. Table block; 1701. Clamping block; 1702. Clamping groove; 1703. Pull rod; 1704. Insertion rod; 1705. Insertion hole; 18. Guide rod; 19. Guide hole; 20. Rubber block; 21. Sliding path; 22. Rolling ball. DETAILED DESCRIPTION

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] like Figures 1-15 As shown, in one embodiment of the present invention, a copper-based friction plate hot pressing forming device is provided, comprising: The frame 1 has an upper die 2 mounted thereon via a hydraulic rod 101. The frame 1 also has a lower die 3 mounted thereon. The lower die 3 has a flow channel 301 and a sliding cavity 302 that are interconnected. The lower die 3 is located below the upper die 2. When in use, the hydraulic rod 101 drives the upper die 2 to move downward toward the lower die 3, so that the upper die 2 and the lower die 3 are closed. The distinguishing features of the present invention also include: a supporting plate 4, which is slidably mounted in the sliding cavity 302, a forming groove 401 communicating with the flow channel 301 is provided on the supporting plate 4, and an extrusion plate 402 for being inserted into the forming groove 401 is installed on the upper die 2. When the metal powder is discharged into the sliding cavity 302 through the flow channel 301, since the forming groove 401 is connected to the flow channel 301, the metal powder will pass through the flow channel 301 into the forming groove 401, and the shape of the horizontal cross section of the forming groove 401 is consistent with the horizontal cross section of the friction plate after forming. The shapes of the surfaces are consistent, and the depth of the forming groove 401 is greater than the thickness of the friction plate. When the device extrude metal powder, the extrusion plate 402 on the upper die 2 is inserted into the forming groove 401 to extrude the metal powder in the forming groove 401, so that the metal powder in the forming groove 401 can be better extruded. The opening of the flow channel 301 is installed with a cover body by bolts. When extrusion is performed, the opening of the flow channel 301 is blocked by the cover body to reduce the possibility of metal powder overflowing from the opening of the flow channel 301 during extrusion; The driving member 5 includes a steam pipe 501 mounted on the frame 1. Steam is injected into the lower mold 3 through the steam pipe 501 to preheat the upper mold 2 and the lower mold 3 after the mold is closed. This reduces the possibility of the instantaneous thermal stress generated when the metal powder is extruded affecting the device, thereby protecting the device. One end of the steam pipe 501 passes through the lower mold 3 and is located in the sliding cavity 302. A connecting spring 503 is installed between the supporting plate 4 and the inner wall of the sliding cavity 302. A push rod 502 is slidably installed in the steam pipe 501. The free end of the push rod 502 is connected to the supporting plate 4. The push rod 502 and the connecting spring 503 are respectively located on both sides of the supporting plate 4. The push rod 502 is provided with a rod cavity 504 that is connected to the steam pipe 501. The push rod 502 is provided with a notch 505 that passes through the push rod 502. A blocking cylinder 506 for blocking or unblocking the notch 505 is installed in the sliding cavity 302. When the device is in use, the upper mold 2 and the lower mold 3 are first closed by pushing the hydraulic rod 101. At this time, there is still a certain space between the upper mold 2 and the lower mold 3 to facilitate the subsequent pressing. That is, at this time, the extrusion plate 402 is not completely inserted into the forming groove 401, and then the metal powder is discharged into the forming groove 401 through the flow channel 301. The lower mold 3 is preheated through the steam pipe 501. The steam will first push the push rod 502 located in the steam pipe 501, so that the supporting plate 4 slides in the direction of the extrusion connecting spring 503. When the push rod 502 moves to the notch 505 outside the shielding tube 506, the steam enters the sliding cavity 302 from the notch 505 to preheat the supporting plate 4. At the same time, the steam The pushing force of the push rod 502 is reduced, so that the force applied by the connecting spring 503 to the supporting plate 4 is greater than the force applied by the steam to the push rod 502. Then, the connecting spring 503 is reset to push the supporting plate 4 back to its original position, so that the supporting plate 4 can slide back and forth in the sliding cavity 302, driving the metal powder to shake in the sliding cavity 302. After the air between the metal powder is shaken out, the steam input is stopped. After the supporting plate 4 is pushed back to its original position by the connecting spring 503, the hydraulic rod 101 continues to apply pressure so that the upper die 2 presses the metal powder in the forming groove 401. The multi-stage drive between the upper die 2 and the lower die 3 realizes the composite process of "one-time die pressing + two-time extrusion", which increases the density of the material while reducing internal cracks. Compared with the prior art, when the device is used, the upper mold 2 and the lower mold 3 are first closed by the hydraulic rod 101, and then the metal powder is discharged into the forming groove 401 through the runner 301. After the metal powder is discharged, the mold is preheated through the steam pipe 501 and the push rod 502 is pushed by steam, so that the push rod 502 slides on the supporting plate 4. When the push rod 502 moves to the point where the notch 505 is located outside the shielding tube 506, the steam diffuses into the sliding cavity 302 and the force exerted on the push rod 502 is reduced. The connecting spring 503 pushes the supporting plate 4 to reset. The supporting plate 4 can slide back and forth in the sliding cavity 302, which is convenient for shaking the metal powder, reducing the possibility of air between the metal powders, reducing the possibility of cavity formation inside the friction plate after molding, and increasing the practicality of the device.

[0022] like Figure 4 and Figure 8As shown, a partial structure of the supporting plate 4 is disclosed. In embodiment 2, an elastic sheet 6 is installed on the side wall of the flow channel 301. The free end of the elastic sheet 6 is connected to the supporting plate 4 and is located in the forming groove 401. A plurality of extension grooves 7 are provided on the elastic sheet 6. When the supporting plate 4 slides, the diameter of the extension groove 7 is driven to increase or decrease, so that the length of the elastic sheet 6 increases or decreases. The elastic sheet 6 is made of an iron sheet or other elastic material. When in use, one end of the elastic sheet 6 is riveted in the flow channel 301 and the other end is riveted in the forming groove 401. When in use, the elastic sheet 6 can play a shielding role to shield the metal powder. When the metal powder moves from the flow channel 301 to the forming groove 401, the possibility of the metal powder entering the gap between the two is reduced by the shielding of the elastic sheet 6. When the supporting plate 4 slides, the elastic sheet 6 can maintain the connection between the forming groove 401 and the flow channel 301 by deformation. The extension grooves 7 are provided on the surface of the elastic sheet 6, so that the elastic sheet 6 is formed as shown in FIG. Figure 8 The structure shown enables the length of the entire elastic piece 6 to be varied; When the metal powder is discharged, the gap between the forming groove 401 and the flow channel 301 is blocked by the elastic sheet 6, which reduces the possibility of the metal powder falling to other places in the sliding cavity 302. When the metal powder is discharged, it can be preheated by steam, and the supporting plate 4 is made to slide back and forth in the sliding cavity 302. During the process, the inner wall of a flow channel 301 has two sides, and the elastic sheet 6 on one side is set as sheet A, and the elastic sheet 6 on the other side is set as sheet B. When the supporting plate 4 slides toward sheet A, sheet B bends in the direction toward sheet A and is stretched through the deformation of the opening of the extension groove 7, and sheet A is also bent in the same direction and its length is also stretched. When the supporting plate 4 slides toward the sheet B, the sheet A bends in the direction toward the sheet B and is stretched by the deformation of the opening of the extension groove 7. The sheet B is also bent in the same direction and its length is also stretched. When the supporting plate 4 is reset, the opening of the extension groove 7 is reduced relative to when it was bent, so that the lengths of the sheets A and B are reduced relative to when they were bent. During the sliding process of the supporting plate 4, the elastic sheet 6 can always remain connected to the inner wall of the forming groove 401, and can also be connected to the flow channel 301, so that the metal powder can smoothly enter the forming groove 401 when being discharged, reducing the possibility of metal powder loss during loading and increasing the practicality of the device.

[0023] like Figure 5 and Figure 7As shown, the specific structure of the sliding cavity 302 is disclosed. The sliding cavity 302 includes a motion cavity 3021 and a reset cavity 3022. The height of the bottom of the inner wall of the motion cavity 3021 is lower than the height of the bottom of the inner wall of the reset cavity 3022. A connecting rod 9 is rotatably installed in the motion cavity 3021 through a torsion spring 8. A tapping roller 10 is rotatably installed on the connecting rod 9. The height difference between the motion cavity 3021 and the reset cavity 3022 is greater than or equal to the diameter of the tapping roller 10. A ring body is installed on the connecting rod 9, and a ring groove is opened on the tapping roller 10. The ring body and the ring groove are rotatably matched to make the tapping roller 10 0 is rotatably engaged with the connecting rod 9. The above-mentioned installation method ensures that no bulge is formed on the outer side of the beating roller 10. The sliding cavity 302 is divided into two halves along the center line. The moving cavity 3021 is the cavity on the side close to the connecting spring 503, and the reset cavity 3022 is the cavity on the side close to the push rod 502. In normal state, the torsion spring 8 forces the connecting rod 9 to move in a direction away from the bottom of the inner wall of the moving cavity 3021. The movement direction of the supporting plate 4 sliding toward the moving cavity 3021 is set as the first direction, and the movement direction of the supporting plate 4 sliding toward the reset cavity 3022 is set as the second direction. When the device is in use, the push rod 502 is pushed by steam, thereby causing the carrier plate 4 to slide in the first direction. At this time, the side wall of the carrier plate 4 contacts the connecting rod 9 and the beating roller 10, causing the connecting rod 9 to rotate toward the bottom of the inner wall of the movement chamber 3021. When the carrier plate 4 is located in the movement chamber 3021, the connecting rod 9 rotates to the bottom of the beating roller 10 and the carrier plate 4. When the push rod 502 moves to the outside of the shielding tube 506 when the notch 505 is located, steam enters the sliding chamber 302 for preheating. At this time, the force applied by the connecting spring 503 to the carrier plate 4 is greater than the force applied by the steam to the push rod 502, causing the carrier plate 4 to move in the second direction. When the supporting plate 4 moves to the bottom of the supporting plate 4 and is misaligned with the beating roller 10, the torsion spring 8 is reset and pulls the connecting rod 9 to reset. Since the connecting rod 9 is pushed to rotate when the supporting plate 4 slides in the first direction, its end and the beating roller 10 will face the first direction, so that when the torsion spring 8 pulls the connecting rod 9 to reset, it will rotate in the second direction. After the connecting rod 9 is reset, it still tends to rotate in the second direction due to inertia, thereby driving the beating roller 10 to knock the side wall of the supporting plate 4, causing vibration on the supporting plate 4, so that the supporting plate 4 can also generate vibration when sliding, so that the air in the metal powder can be better discharged, thereby increasing the practicality of the device.

[0024] like Figure 14As shown in the second embodiment, a partial structure on the carrier plate 4 is disclosed. The carrier plate 4 is provided with a receiving cavity 403. An ejector plate 405 is slidably installed in the receiving cavity 403 by means of a compression spring 404. An ejector rod 406 that slides through the carrier plate 4 is installed on the ejector plate 405. The free end of the ejector rod 406 is located in the molding groove 401. A protruding rod 407 is installed on the ejector plate 405. The protruding rod 407 penetrates the carrier plate 4 and is located on the outside. When the upper mold 2 is connected to the lower mold 3, When the upper mold 2 is in contact with the lower mold 3, the upper mold 2 applies a force to the protruding rod 407 to compress the extrusion spring 404. The extrusion spring 404 forces the ejector plate 405 to move toward the upper mold 2. When the upper mold 2 and the lower mold 3 are not in contact, the ejector rod 406 is located in the molding groove 401, and the top height of the ejector rod 406 is higher than the bottom of the inner wall of the molding groove 401. At this time, the top of the protruding rod 407 is higher than the height of the upper surface of the supporting plate 4, and the upper surface of the supporting plate 4 is flush with the upper surface of the lower mold 3. When the upper mold 2 and the lower mold 3 are in the process of closing the mold, the upper mold 2 presses the protruding rod 407, thereby causing the protruding rod 407 to drive the ejection plate 405 to slide downward. When the mold closing is completed, the ejection rod 406 falls until its top is flush with the bottom of the inner wall of the forming groove 401. When the friction plate is initially formed by extrusion, it needs to be taken out. The hydraulic rod 101 is used to pull the upper mold 2 away from the lower mold 3, so that the upper mold 2 releases the pressure on the protruding rod 407, thereby resetting the extrusion spring 404 and pushing the ejection plate 405, so that the ejection rod 406 pushes the formed friction plate, so that the friction plate can be separated from the forming groove 401. After the pressing is completed, the device opens the upper mold 2 and directly ejects the friction plate through the ejection rod 406, which facilitates the removal of the friction plate and increases the practicality of the device.

[0025] like Figure 2 、 Figure 9 and Figure 13 As shown, the partial structure of the upper mold 2 and the frame 1 is disclosed. A sliding block 11 is slidably mounted on the upper mold 2. A groove body is opened on the upper mold 2, and the groove body is T-shaped. A plate body is also mounted on the sliding block 11. The width of the plate body is greater than the width of the sliding block 11. The sliding block 11 and the plate body are slidably mounted in the groove body. The hydraulic rod 101 is hinged with an articulated rod 12 on its telescopic end, and the free end of the articulated rod 12 is hinged with the sliding block 11. A dumping plate 13 is hinged on the frame 1, and the lower mold 3 is mounted on the dumping plate 13. A support plate 14 is slidably mounted on the frame 1, and a transmission rod 15 slidably connected to the hydraulic rod 101 is mounted on the support plate 14. There are multiple transmission rods 15, and a plate body is mounted at its end. Multiple transmission rods 15 are uniformly connected through the plate body, and a block is mounted on the plate body, which is set as an interference block. A groove body that slides with the block body is opened on the hydraulic rod 101 to make the transmission rod 15 slidably connected to the hydraulic rod 101. In order to facilitate the illustration of other structures in the figure, the structure here is not shown. One side of the dumping plate 13 is hinged to the frame 1, and the hinge point of the dumping plate 13 is located on the same side as the opening of the flow channel 301. Figure 1 From the main perspective, the transmission rod 15 is slidably connected to the hydraulic rod 101 in the vertical direction. When the hydraulic rod 101 continues to move downward, the transmission rod 15 drives the support plate 14 to move downward to release the support for the tilting plate 13, causing the tilting plate 13 to rotate. When the upper mold 2 and the lower mold 3 are closed, they rotate together. By rotating the hinged rod 12 and pulling the sliding block 11, the sliding block 11 slides on the upper mold 2 along the inclined surface in an upward direction to meet the movement of the upper mold 2, thereby improving the feasibility of the device. Since the depth of the forming groove 401 is greater than the thickness of the friction plate, the possibility of metal powder leakage when the lower mold 3 is tilted is reduced. The stroke of the hydraulic rod 101 is divided into three stages. When it is in the first stage, the hydraulic rod 101 closes the upper mold 2 and the lower mold 3. At this time, the upper surface of the lower mold 3 is in the horizontal direction. When it is in the second stage, the hydraulic rod 101 continues to push the upper mold 2 and the lower mold 3. When it is in the third stage, it can continue to extrude the upper mold 2 and the lower mold 3, so that the extrusion plate 402 on the upper mold 2 can extrude the metal powder in the forming groove 401. Among them, the transmission rod 15 is slidably connected to the telescopic end of the hydraulic rod 101. When the hydraulic rod 101 approaches the lower mold 3, the hydraulic rod 101 first slides with the transmission rod 15. When the hydraulic rod 101 slides to the first stage When the hydraulic rod 101 slides in the direction close to the transmission rod 15 to the maximum extent, that is, the upper surface of the inner wall of the upper trough of the hydraulic rod 101 contacts the interference block. At this time, if the hydraulic rod 101 slides to the second stage, it can drive the transmission rod 15 to move downward. However, when the hydraulic rod 101 is reset upward, the hydraulic rod 101 slides in the direction away from the transmission rod 15. At this time, the upper surface of the inner wall of the trough moves in the direction away from the interference block, while its lower surface still has a distance from the interference block, so that when the hydraulic rod 101 moves upward, it will not drive the transmission rod 15 to move, so that when the upper mold 2 and the lower mold 3 are separated, the transmission rod 15 will not drive the support plate 14 to move; When the device is in use, the upper mold 2 is first pushed to reach the first stage. After the mold is closed, the upper mold 2 and the lower mold 3 are continuously pushed by the hydraulic rod 101 to enter the second stage. The transmission rod 15 pushes the support plate 14 downward, so that the support plate 14 releases the support for the tipping plate 13, and the tipping plate 13 rotates, causing the lower mold 3 to tilt, thereby making the opening of the flow channel 301 higher than the molding groove 401. When the metal powder is discharged, it can be guided by gravity and the inclined bottom surface of the flow channel 301, so that the metal powder can better move into the molding groove 401. During the process, the supporting plate 4 will not slide in the sliding cavity 302. When the metal powder is discharged, the hydraulic rod 101 pulls the upper mold 2 and the lower mold 3 back to the first stage. At this time, steam is passed through the supporting plate 4 to screen the metal powder, further reducing the possibility of metal powder leakage. The hydraulic rod 101 is then moved to the third stage, causing the upper mold 2 to extrude the metal powder, so that the device can be used normally. Through the above-mentioned setting, when the device is loading the metal powder, the metal powder can smoothly enter the forming groove 401 by tilting, thereby increasing the practicality of the device.

[0026] like Figure 9 and Figure 10 As shown, the structure of part of the frame 1 is disclosed, and an installation cavity 16 is provided on the frame 1, and the installation cavity 16 is used to accommodate the tipping plate 13, and an outer cylinder 1601 is installed in the installation cavity 16, and a support rod 1603 is slidably installed in the outer cylinder 1601 through a support spring 1602, and the support plate 14 is connected to the support rod 1603, and the support spring 1602 forces the support rod 1603 to move upward, so that the support rod 1603 drives the support plate 14 to conflict with the tipping plate 13. When in use, firstly, when the hydraulic rod 101 is in the state after starting to retract and before being in the first stage, the lower mold 3 and the tipping plate 13 are supported by the multiple support springs 1602 on the support plate 14; secondly, when the device is in the state where the hydraulic rod 101 is retracted to the unstarted state, that is, when the device has not started working , the resistance block contacts the lower surface of the inner wall of the upper trough of the hydraulic rod 101. At this time, the dumping plate 13 applies pressure to the support plate 14 through gravity, and the support plate 14 tends to move downward, and the transmission rod 15 is fixedly connected to it and also tends to move downward, but the downward movement tendency of the transmission rod 15 is restricted by the lower surface of the inner wall of the trough and cannot move downward. The action of force is mutual, and the inner wall of the upper trough of the hydraulic rod 101 will generate an upward force on the transmission rod 15, thereby providing the support plate 14 with a force opposite to the gravity of the dumping plate 13. The transmission rod 15 and the support plate 14 are supported by the hydraulic rod 101 and the support provided by the support spring 1602 to share the weight of the dumping plate 13 and the lower mold 3, thereby reducing the possibility of damage to the support spring 1602 when the device is not in use; When in use, the outer cylinder 1601 restricts the side walls of the support rod 1603 and the support spring 1602, so that when the support spring 1602 is deformed, it can only deform along its axial direction, reducing the possibility of the support plate 14 shaking when sliding, and increasing the stability of the support spring 1602 when in use.

[0027] like Figure 4 and Figure 14 As shown, part of the structure on the supporting plate 4 is disclosed, a guide rod 18 is installed on the supporting plate 4, and a connecting spring 503 is sleeved on the outside of the guide rod 18. A guide hole 19 for accommodating the guide rod 18 is opened on the lower mold 3, and the guide rod 18 is restricted by the inner wall of the guide hole 19, and the axis of the guide hole 19 is in the horizontal direction, so that the guide rod 18 and the supporting plate 4 can only slide along the axis direction of the guide hole 19, and the guide rod 18 restricts the inner wall of the connecting spring 503, so that the connecting spring 503 can only undergo elastic deformation along the axis direction of the guide rod 18, thereby increasing the stability of the connecting spring 503 during deformation.

[0028] like Figure 1 、 Figure 11 and Figure 14 As shown, part of the structure on the pouring plate 13 is disclosed. The free end of the guide rod 18 slides through the guide hole 19 and passes through the lower mold 3 and is located on the outside. A table block 17 is installed on the pouring plate 13. A clamping block 1701 is slidably installed on the table block 17. There are two clamping blocks 1701. A clamping groove 1702 for accommodating the steam pipe 501 and the guide rod 18 is opened on the clamping block 1701. The sliding direction of the clamping block 1701 is to move closer to or away from each other. There are two tables 17 located on both sides of the lower mold 3. When in use, the clamping blocks 1701 are close to each other, and then the outer wall of the guide rod 18 or the steam pipe 501 is clamped through the clamping groove 1702, thereby connecting the lower mold 3 to the pouring plate 13. A pulling rod 1703 is hinged on the clamping block 1701, and an insertion rod 1704 is movably installed on the free end of the pulling rod 1703. The free ends of the pulling rods 1703 on the two clamping blocks 1701 are movably matched with the insertion rod 1704. An insertion hole 1705 for accommodating the insertion rod 1704 is opened on the block 17. The insertion rod 1704 can rotate and slide on the pulling rod 1703. A channel is opened on the pulling rod 1703, and the insertion rod 1704 movably passes through the channels on the two pulling rods 1703; The sliding block 11 is connected to the upper mold 2 by bolts. When the lower mold 3 is installed, the two clamping blocks 1701 are first moved away from each other. When the lower mold 3 is placed on the tipping plate 13, the steam pipe 501 and the guide rod 18 are located between the two clamping blocks 1701. Then, the insertion rod 1704 is pulled to slide downward, so that the insertion rod 1704 pulls the pulling rod 1703. During the process, the pulling rod 1703 rotates and drives the clamping blocks 1701 to move closer to each other, thereby causing the clamping blocks 1701 to clamp the steam pipe 501 and the guide rod 18 through the clamping groove 1702. When the clamping is completed, the insertion rod 1704 is aligned with the insertion hole 1705. At this time, it slides along the axial direction of the insertion rod 1704 to be inserted into the insertion hole 1705, restricting the tendency of the pulling rods 1703 to move away from each other, thereby increasing the stability of the pulling rods 1703 during use. The steam pipe 501 and the guide rod 18 are clamped by the clamping blocks 1701 located on both sides of the lower mold 3, and the lower mold 3 is detachably connected to the dumping plate 13. Through the above arrangement, the lower mold 3 and the upper mold 2 can be disassembled from the frame 1, which is convenient for pressurizing and molding friction plates of different shapes.

[0029] like Figure 10 As shown, the specific structure on the support plate 14 is disclosed. A rubber block 20 is installed on the support plate 14. The rubber block 20 is used to contact the dumping plate 13. When in use, the support plate 14 flexibly supports the dumping plate 13 through the rubber block 20, reducing the wear on the dumping plate 13 caused by the support plate 14 and the dumping plate 13 when they conflict with each other.

[0030] like Figure 6 and Figure 7 As shown, part of the structure of the sliding cavity 302 is disclosed. A sliding channel 21 is provided in the sliding cavity 302. A ball 22 is installed on the bottom of the supporting plate 4 to roll with the sliding channel 21. When the supporting plate 4 slides, the rolling of the ball 22 reduces the friction between the supporting plate 4 and the sliding cavity 302, which facilitates the sliding of the supporting plate 4. The sliding trajectory of the ball 22 is restricted by the sliding channel 21, thereby increasing the stability of the supporting plate 4 when sliding.

[0031] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A copper-based friction plate hot pressing forming device, characterized in that: include: A frame (1) on which an upper die (2) is mounted via a hydraulic rod (101); a lower die (3) is mounted on the frame (1); and a flow channel (301) and a sliding cavity (302) that are interconnected are formed on the lower die (3); A carrier plate (4) is slidably mounted in the sliding cavity (302), the carrier plate (4) being provided with a forming groove (401) communicating with the flow channel (301), and an extrusion plate (402) for being inserted into the forming groove (401) is mounted on the upper die (2); The driving member (5) comprises a steam pipe (501) mounted on the frame (1), one end of the steam pipe (501) passes through the lower mold (3) and is located in the sliding cavity (302), a connecting spring (503) is installed between the supporting plate (4) and the inner wall of the sliding cavity (302), a push rod (502) is slidably installed in the steam pipe (501), the free end of the push rod (502) is connected to the supporting plate (4), a rod cavity (504) communicating with the steam pipe (501) is provided on the push rod (502), a notch (505) passing through the push rod (502) is provided on the push rod (502), and a shielding cylinder (506) for shielding or unshielding the notch (505) is installed in the sliding cavity (302).

2. The hot pressing forming device for the copper-based friction plate according to claim 1, characterized in that: An elastic sheet (6) is mounted on the side wall of the flow channel (301), the free end of the elastic sheet (6) being connected to the supporting plate (4) and located in the forming groove (401), and a plurality of extension grooves (7) are formed on the elastic sheet (6). When the supporting plate (4) slides, the diameter of the extension grooves (7) is increased or decreased, thereby increasing or decreasing the length of the elastic sheet (6).

3. The hot pressing forming device for the copper-based friction plate according to claim 2, characterized in that: The sliding cavity (302) comprises a motion cavity (3021) and a reset cavity (3022); the bottom of the inner wall of the motion cavity (3021) is lower than the bottom of the inner wall of the reset cavity (3022); a connecting rod (9) is rotatably mounted in the motion cavity (3021) via a torsion spring (8); and a tapping roller (10) is rotatably mounted on the connecting rod (9).

4. The hot pressing forming device for the copper-based friction plate according to claim 3, characterized in that: The supporting plate (4) is provided with a receiving cavity (403), an ejection plate (405) is slidably mounted in the receiving cavity (403) via a compression spring (404), an ejection rod (406) is mounted on the ejection plate (405) and slides through the supporting plate (4), a free end of the ejection rod (406) is located in the molding groove (401), a protruding rod (407) is mounted on the ejection plate (405), the protruding rod (407) penetrates the supporting plate (4) and is located outside, and when the upper mold (2) is connected to the lower mold (3), the upper mold (2) applies a force to the protruding rod (407) to compress the compression spring (404).

5. The hot pressing forming device for the copper-based friction plate according to claim 4, characterized in that: A sliding block (11) is slidably mounted on the upper mold (2), a hinged rod (12) is hinged on the telescopic end of the hydraulic rod (101), a free end of the hinged rod (12) is hinged to the sliding block (11), a tilting plate (13) is hinged on the frame (1), the lower mold (3) is mounted on the tilting plate (13), a support plate (14) is slidably mounted on the frame (1), and a transmission rod (15) slidably connected to the hydraulic rod (101) is mounted on the support plate (14).

6. The hot pressing forming device for the copper-based friction plate according to claim 5, characterized in that: The frame (1) is provided with a mounting cavity (16), an outer cylinder (1601) is mounted in the mounting cavity (16), a support rod (1603) is slidably mounted in the outer cylinder (1601) via a support spring (1602), and the support plate (14) is connected to the support rod (1603).

7. The hot pressing forming device for the copper-based friction plate according to claim 6, characterized in that: A guide rod (18) is mounted on the bearing plate (4), a connecting spring (503) is sleeved on the outside of the guide rod (18), and a guide hole (19) for accommodating the guide rod (18) is provided on the lower die (3).

8. The hot pressing forming device for the copper-based friction plate according to claim 7, characterized in that: The free end of the guide rod (18) slides through the guide hole (19) and is located outside the lower mold (3). A table block (17) is installed on the tilting plate (13). A clamping block (1701) is slidably installed on the table block (17). There are two clamping blocks (1701). A clamping groove (1702) for accommodating the steam pipe (501) and the guide rod (18) is provided on the clamping block (1701). A pulling rod (1703) is hinged on the clamping block (1701). An insertion rod (1704) is movably installed on the free end of the pulling rod (1703). The free ends of the pulling rods (1703) on the two clamping blocks (1701) are movably matched with the insertion rod (1704). An insertion hole (1705) for accommodating the insertion rod (1704) is provided on the table block (17).

9. The hot pressing forming device for copper-based friction plates according to claim 8, characterized in that: A rubber block (20) is mounted on the support plate (14), and the rubber block (20) is used to contact the dumping plate (13).

10. The hot pressing forming device for the copper-based friction plate according to claim 9, characterized in that: A sliding path (21) is provided in the sliding cavity (302), and a rolling ball (22) is rollingly mounted on the bottom of the bearing plate (4) and is in rolling engagement with the sliding path (21).

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