Cold forging device and cold forging process for high-purity oxygen-free copper needle type heat dissipation substrate

Abstract

The invention relates to the technical field of metal cold forging, and discloses a high-purity oxygen-free copper needle type heat dissipation substrate cold forging device and a cold forging technology.The high-purity oxygen-free copper needle type heat dissipation substrate cold forging device comprises a hydraulic machine, a cold forging table is arranged in the hydraulic machine, and a driving assembly used for conveying a heat dissipation substrate to be subjected to cold forging into the cold forging table is arranged on the outer surface of the hydraulic machine; a containing assembly used for containing a heat dissipation substrate to be subjected to cold forging is arranged above the driving assembly, an adding assembly used for reducing friction and abrasion in the cold forging process is arranged above the driving assembly, the containing assembly is driven by reciprocating motion of the conveying belt to do reciprocating motion, and then the two adaptation frames are sequentially placed on the upper surface of the cold forging table; due to the introduction of the automatic conveying belt, the placing and moving process of the heat dissipation substrate is more efficient and faster, and compared with traditional production, when one adaptation frame is subjected to cold forging on the cold forging table, an operator can immediately carry out follow-up treatment on the heat dissipation substrate subjected to cold forging on the other adaptation frame.

Description

Technical Field

[0001] The invention relates to the technical field of metal cold forging, and in particular to a high-purity oxygen-free copper needle-type heat dissipation substrate cold forging device and cold forging process. Background Art

[0002] As a device specially designed for cold forging of metals, the core advantage of cold forging equipment is that it can exert huge pressure on metal materials at room temperature to cause them to undergo plastic deformation, thereby accurately forming the required shape and size. Compared with traditional hot forging processes, cold forging not only avoids the energy consumption and time cost required for heating materials, but also better maintains the mechanical properties and grain structure of the materials, thereby improving the overall quality of the product.

[0003] However, the existing high-purity oxygen-free copper needle-type heat dissipation substrate cold forging devices have significant limitations in the field of automated production. These devices often process one adapter frame at a time based on ensuring processing accuracy and avoiding mutual interference between workpieces, which makes the operation speed far from the standard of efficient production. Even in the production line where automated equipment has been introduced, it often faces processing bottlenecks. Specifically, when an adapter frame is being cold forged on a cold forging table, the automated equipment often needs to wait for it to be completely cold forged and leave the current station before it can start processing the next adapter frame. This serial processing method seriously limits the continuity of production, causing the overall production process to be artificially divided into multiple independent and time-consuming steps, thereby greatly extending the production cycle and reducing the overall production efficiency;

[0004] In addition, the existing technology still requires a lot of manual intervention in multiple links of heat dissipation substrate processing, including placement, movement and application of lubricants, which not only increases the labor intensity of operators, but also easily causes operational errors due to human factors, directly affecting the final quality of the product and overall production efficiency. If the existing device uses a sensor to trigger an electrical signal, although automation is achieved to a certain extent, it also brings additional equipment costs and maintenance difficulties. More importantly, in the special environment of cold forging, high temperature and strong vibration impact will pose severe challenges to the stability and reliability of the sensor, thereby affecting its accuracy and service life, adding additional risks and costs.

[0005] Therefore, a high-purity oxygen-free copper needle-type heat dissipation substrate cold forging device and cold forging process are proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a method to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a high-purity oxygen-free copper needle-type heat dissipation substrate cold forging device, comprising a hydraulic press, a cold forging table is arranged inside the hydraulic press, a driving component for transporting the heat dissipation substrate to be cold forged to the inside of the cold forging table is arranged on the outer surface of the hydraulic press, an external manipulator for placing the heat dissipation substrate is arranged on the side of the hydraulic press away from the driving component, a placement component for placing the heat dissipation substrate to be cold forged is arranged above the driving component, and an adding component for reducing friction and wear during the cold forging process is arranged above the driving component.

[0008] Preferably, the driving assembly includes a driving platform, which is fixedly connected to the outer wall of the hydraulic press, and the bottom of the driving platform at one end away from the hydraulic press is symmetrically fixedly connected to a supporting leg, a straight groove is symmetrically penetrated through the upper surface of the driving platform, a limiting groove is symmetrically penetrated through the upper surface of the driving platform, and a limiting column is symmetrically fixedly connected to the upper surface of the driving platform, a rotating block 1 is rotatably connected to the bottom of the driving platform, a conveyor belt is transmission-connected to the outer surface of the rotating block 1, a rotating block 2 is rotatably connected to the inner surface of the conveyor belt, a driving column is rotatably connected to the outer surface of the driving platform, a driving gear is fixedly connected to a plurality of toggle rods 1 on a side of the driving gear close to the driving platform, a fixing column is fixedly connected to the bottom of the driving platform, an adapting gear is rotatably connected to the end of the fixing column away from the driving platform, and a plurality of toggle rods 2 are fixedly connected to a side of the adapting gear close to the driving platform.

[0009] Preferably, the placement assembly includes two sliding frames, the two sliding frames are fixedly connected to the outer surface of the conveyor belt, the ends of the two sliding frames away from the conveyor belt are respectively slidably connected to the inside of two linear grooves, and the two sliding frames are respectively slidably connected to the outer surfaces of two limit columns, the upper surfaces of the two sliding frames are slidably connected to sliding plates, the lower surfaces of the two sliding plates are fixedly connected to connecting rods, the ends of the two connecting rods away from the sliding plates are rotatably connected to adapter wheels, the two adapter wheels are respectively slidably connected to the inside of two limit grooves, the ends of the two sliding plates close to the cold forging table are fixedly connected to adapter frames, the interiors of the two adapter frames are arranged in a linear array and are symmetrically fixedly connected to limiting blocks, and the sides of the two adapter frames away from each other are fixedly connected to trapezoidal blocks.

[0010] Preferably, the adding component includes two connecting blocks, the two connecting blocks are respectively fixedly connected to both sides of the outer surface of the driving platform, the upper surfaces of the two connecting blocks are symmetrically fixedly connected with support frames, each two adjacent support frames are fixedly connected with a limiting rod, the upper surfaces of the two limiting rods are slidably connected with a sliding rod, the lower surfaces of the two sliding rods are rotatably connected with a rotating wheel, the outer surfaces of the two sliding rods are symmetrically fixedly connected with a reset plate, and the lower surface of each reset plate is fixedly connected with a reset spring, the ends of the two support frames away from the connecting blocks are fixedly connected with a raw material shell, the upper surfaces of the two raw material shells are penetrated with sliding grooves, the tops of the inner cavities of the two raw material shells are fixedly connected with positioning plates, the sides of the two positioning plates close to the connecting blocks are fixedly connected with resistance springs, the ends of the two resistance springs away from the positioning plates are fixedly connected with a connecting Z rod, the bottoms of the two raw material shells are fixedly connected with a discharge pipe, and the upper surfaces of the two raw material shells are fixedly connected with a feed pipe.

[0011] Preferably, the rotating block 2 is connected to the rotating block 1 through a conveyor belt, and the end of the rotating block 2 away from the driving platform is provided with toggle grooves arranged in a circular array, and the end of the driving column away from the driving gear is drivably installed on an external motor, and the driving gear is meshed with an adapter gear. The outer surface size of the toggle rod 1 and the outer surface size of the toggle rod 2 are both adapted to the inner cavity size of the toggle groove of the rotating block 2.

[0012] Preferably, the upper surface of the sliding rod is set as an inclined surface, the end of the reset spring away from the reset plate is fixedly connected to the upper surface of the limit rod, the end of the resistance spring away from the positioning plate is fixedly connected to the connecting Z rod, the connecting Z rod is slidably connected to the inside of the sliding groove, the end of the connecting Z rod close to the sliding rod is set as an inclined surface, the inclined surface of the connecting Z rod conflicts with the inclined surface of the sliding rod, the bottom of the connecting Z rod seals the discharge pipe and the raw material shell, and the end of the discharge pipe away from the raw material shell is set to a funnel shape.

[0013] The cold forging process of high-purity oxygen-free copper pin-type heat dissipation substrate includes the following steps:

[0014] Step 1: Material preparation: Select high-purity oxygen-free copper as the raw material to ensure that the material has good thermal conductivity and corrosion resistance;

[0015] Step 2: Die installation: Install the designed die on the cold forging device, and perform precise debugging and calibration to ensure that the die and the press are tightly matched;

[0016] Step 3: Feeding and positioning: Feed the pre-treated oxygen-free copper billet into the cold forging device and accurately position it through the feeding mechanism to ensure that the billet is accurately positioned in the mold.

[0017] Step 4: Cold forging: Start the press of the cold forging device to apply gradually increasing pressure to the oxygen-free copper blank in the mold. Under the action of pressure, the blank undergoes plastic deformation and gradually fills the mold cavity;

[0018] Step 5: Pressure holding and cooling: After the blank completely fills the mold cavity, continue to apply pressure to allow the blank to fully cool and solidify in the mold. At the same time, use water to cool the mold and blank to accelerate the cooling speed of the blank and prevent overheating and deformation;

[0019] Step 6: Demolding and subsequent processing: After the blank is cooled, open the mold and take out the cold-forged heat dissipation substrate, and deburr, clean and heat-treat the cold-forged heat dissipation substrate.

[0020] Preferably, in step one, after the material is selected, the oxygen-free copper raw material is pretreated, cut into blanks that match the mold, and the surface is cleaned and deoxidized to ensure the smooth progress of the subsequent cold forging process.

[0021] Preferably, in step three, before the oxygen-free copper billet is fed into the cold forging device, a lubricant is applied between the die and the billet to reduce friction and wear during the cold forging process and improve the surface quality of the product.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The reciprocating motion of the conveyor belt drives the placement components to reciprocate, and then the two adapters are placed on the surface of the cold forging table in turn. The introduction of the automated conveyor belt makes the placement and movement of the heat dissipation substrate more efficient and faster. Compared with traditional production, when one adapter is cold forged on the cold forging table, the operator can immediately perform follow-up processing on the heat dissipation substrate that has been cold forged on the other adapter, and immediately install a new substrate to be cold forged, so that the cold forging process can be carried out continuously, reducing waiting time, thereby achieving seamless connection of the production process and improving production efficiency;

[0024] The rotation of the driving gear drives the rotation of the toggle lever 1 and the toggle lever 2, and then the toggle lever 1 and the toggle lever 2 respectively control the forward and reverse rotation of the rotating block 2, so as to realize the reciprocating motion of the conveyor belt. When the motor is used to directly control the forward and reverse rotation of the conveyor belt, it needs to bear a large start and stop load, which leads to problems such as motor overheating and increased wear. However, by controlling the toggle lever 1 and the toggle lever 2, these loads can be dispersed and reduced, thereby extending the service life of the motor.

[0025] The design of the middle of the limit slot expanding to both sides provides sufficient clearance for the movement of the two adapter frames, effectively avoiding direct contact and collision between them, thereby protecting the integrity and safety of the adapter frame and its internal heat dissipation substrate;

[0026] The adapter frame is arranged in a linear array inside and symmetrically fixedly connected with the limit blocks, which can be used to sleeve different types of molds on the outer surface of the limit blocks, providing precise positioning and support for the molds, preventing displacement or shaking of the molds during the subsequent cold forging process, and ensuring the accuracy and consistency of the cold forging process;

[0027] 2. The trapezoidal block on the outer surface of the adapter frame is in contact with the rotating wheel, thereby pushing the connecting Z rod to move, so that the connecting Z rod no longer blocks the discharge pipe and the raw material shell. At this time, the lubricant inside the raw material shell will drip into the mold inside the adapter frame, realizing the automatic application of the lubricant, improving the automation degree of the production line, reducing manual operation, and reducing labor intensity. At the same time, the lubricant will only be applied when the adapter frame passes by, avoiding waste of lubricant, reducing production costs, and improving resource utilization efficiency. Compared with the existing automatic addition of electrical signals triggered by sensors, the above addition is relatively simple, and the cost of maintenance and replacement is relatively low. In addition, in the cold forging environment, factors such as high temperature, vibration, and impact will affect the stability and reliability of the sensor;

[0028] Among them, adding lubricant to the mold before cold forging can ensure that the contact surface between the mold and the hydraulic press is smooth and reduce the wear caused by friction. Adding lubricant to the mold after cold forging can form a protective film on the surface of the mold and the heat dissipation substrate to prevent them from being damaged by environmental factors.

[0029] Among them, during the cold forging process, due to the high pressure of cold forging, the lubricant in the mold will be evenly compressed and diffused, further improving the lubrication effect, and there is no need to add additional mechanisms for uniform addition, reducing the complexity of the equipment and the difficulty of maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a three-dimensional schematic diagram of the overall structure shown in the present invention;

[0031] Figure 2 It is a three-dimensional schematic diagram of the internal position relationship of the overall structure of the present invention;

[0032] Figure 3 The present invention shows Figure 2 A local enlarged schematic diagram of the structure at A;

[0033] Figure 4 A three-dimensional schematic diagram of the positional relationship of the bottom structure of the driving platform of the present invention;

[0034] Figure 5 This is a three-dimensional schematic diagram of the internal structural position relationship of the placement component of the present invention;

[0035] Figure 6 It is a side perspective schematic diagram of the overall structural position relationship of the present invention;

[0036] Figure 7 The present invention shows Figure 6 A local enlarged schematic diagram of the structure at B in FIG.

[0037] Figure 8 The present invention shows Figure 6 A local enlarged schematic diagram of the structure at position C in FIG.

[0038] Fig. 9 A three-dimensional schematic diagram of the internal structural position relationship of the components added to the present invention;

[0039] Fig.10 The present invention shows Fig. 9 A local enlarged schematic diagram of the structure at D in FIG.

[0040] Fig.11 This is a flowchart of the cold forging process of the heat dissipation substrate of the present invention.

[0041] In the figure:

[0042] 1. Hydraulic press; 11. Cold forging table;

[0043] 2. Driving assembly; 21. Driving platform; 22. Supporting leg; 23. Linear slot; 24. Limiting slot; 25. Limiting column; 26. Rotating block 1; 27. Conveyor belt; 28. Rotating block 2; 29. ​​Driving column; 210. Driving gear; 211. Toggle rod 1; 212. Fixed column; 213. Adapter gear; 214. Toggle rod 2;

[0044] 3. Placement assembly; 31. Sliding frame; 32. Sliding plate; 33. Connecting rod; 34. Adapter wheel; 35. Adapter frame; 36. Limit block;

[0045] 4. Add components; 41. Connecting block; 42. Support frame; 43. Limit rod; 44. Sliding rod; 45. Rotating wheel; 46. Reset plate; 47. Reset spring; 48. Raw material shell; 49. Sliding groove; 410. Positioning plate; 411. Resistance spring; 412. Connecting Z rod; 413. Discharge pipe; 414. Feed pipe. DETAILED DESCRIPTION

[0046] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] See also Figures 1 to 11 As shown, two embodiments of the present invention are provided:

[0048] Embodiment 1: A high-purity oxygen-free copper needle-type heat dissipation substrate cold forging device, comprising a hydraulic press 1, a cold forging table 11 is arranged inside the hydraulic press 1, a driving component 2 for transporting the heat dissipation substrate to be cold forged to the inside of the cold forging table 11 is arranged on the outer surface of the hydraulic press 1, an external manipulator for placing the heat dissipation substrate is arranged on the side of the hydraulic press 1 away from the driving component 2, a placement component 3 for placing the heat dissipation substrate to be cold forged is arranged above the driving component 2, and an adding component 4 for reducing friction and wear during the cold forging process is arranged above the driving component 2.

[0049] The driving assembly 2 includes a driving platform 21, which is fixedly connected to the outer wall of the hydraulic press 1. The bottom of the driving platform 21 away from the hydraulic press 1 is symmetrically fixedly connected with a support leg 22. The upper surface of the driving platform 21 is symmetrically penetrated with a linear groove 23. The upper surface of the driving platform 21 is symmetrically penetrated with a limit groove 24. The upper surface of the driving platform 21 is symmetrically fixedly connected with a limit column 25. The bottom of the driving platform 21 is rotatably connected with a rotating block 26. The outer surface of the rotating block 26 is transmission-connected with a conveyor belt 27. The inner surface of the conveyor belt 27 is A rotating block 28 is rotatably connected to the surface, a driving column 29 is rotatably connected to the outer surface of the driving platform 21, a driving gear 210 is fixedly connected to the bottom of the driving column 29, a side of the driving gear 210 close to the driving platform 21 is fixedly connected to a plurality of toggle rods 211, a fixed column 212 is fixedly connected to the bottom of the driving platform 21, an end of the fixed column 212 away from the driving platform 21 is rotatably connected to an adapter gear 213, and a side of the adapter gear 213 close to the driving platform 21 is fixedly connected to a plurality of toggle rods 214.

[0050] The placement component 3 includes two sliding frames 31, and the two sliding frames 31 are fixedly connected to the outer surface of the conveyor belt 27. The ends of the two sliding frames 31 away from the conveyor belt 27 are respectively slidably connected to the inside of the two linear grooves 23, and the two sliding frames 31 are respectively slidably connected to the outer surfaces of the two limiting columns 25. The upper surfaces of the two sliding frames 31 are slidably connected to sliding plates 32, and the lower surfaces of the two sliding plates 32 are fixedly connected to connecting rods 33. The ends of the two connecting rods 33 away from the sliding plates 32 are rotatably connected to adapter wheels 34, and the two adapter wheels 34 are respectively slidably connected to the inside of the two limiting grooves 24. The ends of the two sliding plates 32 close to the cold forging table 11 are fixedly connected to adapter frames 35. The interiors of the two adapter frames 35 are arranged in a linear array and are symmetrically fixedly connected to the limiting blocks 36, and the sides of the two adapter frames 35 that are away from each other are fixedly connected to trapezoidal blocks.

[0051] The adding component 4 includes two connecting blocks 41, and the two connecting blocks 41 are respectively fixedly connected to the two sides of the outer surface of the driving platform 21. The upper surfaces of the two connecting blocks 41 are symmetrically fixedly connected with support frames 42, and each two adjacent support frames 42 are fixedly connected with a limit rod 43, and the upper surfaces of the two limit rods 43 are penetrated by sliding rods 44 connected in a sliding manner, and the lower surfaces of the two sliding rods 44 are rotatably connected with rotating wheels 45. The outer surfaces of the two sliding rods 44 are symmetrically fixedly connected with reset plates 46, and the lower surface of each reset plate 46 is fixedly connected with a reset spring 47. The two support frames The ends of 42 away from the connecting block 41 are fixedly connected to the raw material shell 48, the upper surfaces of the two raw material shells 48 are penetrated with sliding grooves 49, the tops of the inner cavities of the two raw material shells 48 are fixedly connected to the positioning plates 410, the sides of the two positioning plates 410 close to the connecting block 41 are fixedly connected to the resistance springs 411, the ends of the two resistance springs 411 away from the positioning plates 410 are fixedly connected to the connecting Z rods 412, the bottoms of the two raw material shells 48 are fixedly connected to the discharge pipes 413, and the upper surfaces of the two raw material shells 48 are fixedly connected to the feed pipes 414.

[0052] The limiting groove 24 is composed of two inclined grooves and a long straight groove, and the two inclined grooves are respectively located at the two ends of the long straight groove. The rotating block 28 is connected to the rotating block 1 26 through a conveyor belt 27. The end of the rotating block 28 away from the driving platform 21 is arranged in a circular array with toggle grooves. The end of the driving column 29 away from the driving gear 210 is drivably installed on an external motor. The driving gear 210 is meshed with the matching gear 213. The outer surface size of the toggle rod 1 211 and the outer surface size of the toggle rod 214 are both adapted to the inner cavity size of the toggle groove of the rotating block 28.

[0053] The upper surface of the sliding rod 44 is set as an inclined surface, and the end of the reset spring 47 away from the reset plate 46 is fixedly connected to the upper surface of the limit rod 43, and the end of the resistance spring 411 away from the positioning plate 410 is fixedly connected to the connecting Z rod 412, and the connecting Z rod 412 is slidably connected to the inside of the sliding groove 49. The end of the connecting Z rod 412 close to the sliding rod 44 is set as an inclined surface, and the inclined surface of the connecting Z rod 412 conflicts with the inclined surface of the sliding rod 44. The bottom of the connecting Z rod 412 blocks the discharge pipe 413 and the raw material shell 48, and the end of the discharge pipe 413 away from the raw material shell 48 is set to a funnel shape.

[0054] Embodiment 2: A cold forging process for a high-purity oxygen-free copper pin-type heat dissipation substrate comprises the following steps:

[0055] Step 1: Material preparation: Select high-purity oxygen-free copper as the raw material to ensure that the material has good thermal conductivity and corrosion resistance;

[0056] Step 2: Die installation: Install the designed die on the cold forging device, and perform precise debugging and calibration to ensure that the die and the press are tightly matched;

[0057] Step 3: Feeding and positioning: Feed the pre-treated oxygen-free copper billet into the cold forging device and accurately position it through the feeding mechanism to ensure that the billet is accurately positioned in the mold.

[0058] Step 4: Cold forging: Start the press of the cold forging device to apply gradually increasing pressure to the oxygen-free copper blank in the mold. Under the action of pressure, the blank undergoes plastic deformation and gradually fills the mold cavity;

[0059] Step 5: Pressure holding and cooling: After the blank completely fills the mold cavity, continue to apply pressure to allow the blank to fully cool and solidify in the mold. At the same time, use water to cool the mold and blank to accelerate the cooling speed of the blank and prevent overheating and deformation;

[0060] Step 6: Demolding and subsequent processing: After the blank is cooled, open the mold and take out the cold-forged heat dissipation substrate, and deburr, clean and heat-treat the cold-forged heat dissipation substrate.

[0061] In step one, after the material is selected, the oxygen-free copper raw material is pre-treated, cut into blanks that match the mold, and the surface is cleaned and deoxidized to ensure the smooth progress of the subsequent cold forging process.

[0062] In step three, before the oxygen-free copper billet is fed into the cold forging device, lubricant is applied between the die and the billet to reduce friction and wear during the cold forging process and improve the surface quality of the product.

[0063] Working principle:

[0064] In the initial state: one adapter frame 35 is located at one end close to the hydraulic press 1, the adapter frame 35 close to one end of the hydraulic press 1 is undergoing cold forging, the other adapter frame 35 is located at the end away from the hydraulic press 1, the sliding plate 32 is close to the sliding frame 31, the sliding rod 44 is at the lowest position, the return spring 47 is not stretched, the resistance spring 411 is not compressed, the bottom of the connecting Z rod 412 seals the discharge pipe 413 and the raw material shell 48, and an appropriate amount of lubricant is placed inside the raw material shell 48.

[0065] When working:

[0066] Insertion of mold:

[0067] The operator sleeves the mold on the outer surface of the limit block 36, and the mold is located inside the adapter frame 35. Then the operator turns on the external motor, and the rotation of the external motor drives the driving column 29 to rotate forward. The positive rotation of the driving column 29 drives the driving gear 210 to rotate forward. At the same time, the positive rotation of the driving gear 210 drives the toggle rod 1 211 to rotate forward with the center of the driving gear 210 as the axis. When the toggle rod 1 211 rotates forward, it will adapt to the toggle groove on the rotating block 28, and toggle the rotating block 28 to rotate forward. The positive rotation of the rotating block 28 drives the rotating block 1 26 to rotate forward through the transmission of the conveyor belt 27. At the same time, the positive rotation of the rotating block 28 drives the conveyor belt 27 to transmit forward.

[0068] The conveyor belt 27 drives a sliding frame 31 fixedly connected thereto to move in the linear groove 23 toward one end close to the hydraulic press 1, and the sliding frame 31 will slide on the upper surface of the limiting column 25 toward one end close to the hydraulic press 1. The movement of the sliding frame 31 drives the sliding plate 32 to move synchronously toward one end close to the hydraulic press 1. The movement of the sliding plate 32 drives the adapter frame 35 to move synchronously toward one end close to the hydraulic press 1. At the same time, the movement of the sliding plate 32 drives the connecting rod 33 to move. The movement of the connecting rod 33 drives the adapter wheel 34 to rotate in the limiting groove 24 while sliding toward one end close to the hydraulic press 1. 31, with the movement of the sliding plate 32, the adapter wheel 34 will move along the shape of the limiting groove 24, when the adapter wheel 34 moves to the inside of the long straight groove of the limiting groove 24, the adapter wheel 34 will drive the straight groove 23 to move toward one end close to the connecting block 41, the movement of the connecting rod 33 drives the sliding plate 32 to move on the upper surface of the sliding frame 31 toward one end close to the connecting block 41, the movement of the sliding plate 32 drives the adapter frame 35 to move toward one end close to the connecting block 41, and finally, with the transmission of the conveyor belt 27, the adapter frame 35 away from the hydraulic press 1 will move to the upper surface of the cold forging table 11, and the mold will be moved to the upper surface of the cold forging table 11 at this time;

[0069] The conveyor belt 27 drives the other sliding frame 31 fixedly connected thereto to move in the linear groove 23 toward the end away from the hydraulic press 1, and the sliding frame 31 will slide on the upper surface of the limiting column 25 toward the end away from the hydraulic press 1. The movement of the sliding frame 31 drives the sliding plate 32 to move synchronously toward the end away from the hydraulic press 1. The movement of the sliding plate 32 drives the adapter frame 35 to move synchronously toward the end away from the hydraulic press 1. At the same time, the movement of the sliding plate 32 drives the connecting rod 33 to move. The movement of the connecting rod 33 drives the adapter wheel 34 to rotate in the limiting groove 24 while sliding toward the end away from the hydraulic press 1. The adapter wheel 34 moves on the upper surface of the sliding frame 31. With the movement of the sliding plate 32, the adapter wheel 34 will move along the shape of the limiting groove 24. When the adapter wheel 34 moves to the expansion state of the limiting groove 24, the adapter wheel 34 will drive the linear groove 23 to move toward one end close to the connecting block 41. The movement of the connecting rod 33 drives the sliding plate 32 to move on the upper surface of the sliding frame 31 toward one end close to the connecting block 41. The movement of the sliding plate 32 drives the adapter frame 35 to move toward one end close to the connecting block 41. Finally, with the transmission of the conveyor belt 27, the adapter frame 35 close to the hydraulic press 1 will move away from the hydraulic press 1. At this time, the heat dissipation substrate that has been cold forged is moved out.

[0070] In the above, since the driving gear 210 is meshed with the adapting gear 213, the positive rotation of the driving gear 210 drives the adapting gear 213 to rotate in the opposite direction, and the reverse rotation of the adapting gear 213 drives the toggle rod 214 to rotate in the opposite direction with the center of the adapting gear 213 as the axis. When the adapting gear 213 rotates in the opposite direction, it will adapt to the toggle groove on the rotating block 28 and toggle the rotating block 28 to rotate in the opposite direction. The reverse rotation of the rotating block 28 drives the rotating block 1 26 to rotate in the opposite direction through the transmission of the conveyor belt 27. At the same time, the reverse rotation of the rotating block 28 drives the conveyor belt 27 to drive in the opposite direction, thereby realizing the reciprocating motion of the conveyor belt 27. The rotation of the driving gear 210 drives the rotation of the toggle rod 1 211 and the toggle rod 214, and then through the toggle rod 1 2 11 and the toggle lever 214 respectively control the forward and reverse rotation of the rotating block 28, thereby realizing the reciprocating motion of the conveyor belt 27. The reciprocating motion of the conveyor belt 27 drives the placement component 3 to reciprocate, and then the two adapter racks 35 are placed on the upper surface of the cold forging table 11 in sequence. The introduction of the automated conveyor belt 27 makes the placement and movement of the heat dissipation substrate more efficient and faster. Compared with traditional production, when one adapter rack 35 is cold forged on the cold forging table 11, the operator can immediately perform subsequent processing on the heat dissipation substrate that has been cold forged on the other adapter rack 35, and immediately install a new substrate to be cold forged, so that the cold forging process can be carried out continuously, reducing the waiting time, thereby realizing the seamless connection of the production process and improving production efficiency.

[0071] Add lubricant to the mold surface:

[0072] In the above, when the movement of the sliding plate 32 drives the adapter frames 35 on both sides to move toward one end close to the connecting block 41 at the same time, because the two adapter frames 35 are fixedly connected with the trapezoidal blocks on the sides away from each other, the trapezoidal blocks on the outer surfaces of the adapter frames 35 at both ends will contact with the rotating wheel 45 and drive the rotating wheel 45 to rotate. At the same time, after the rotating wheel 45 contacts the trapezoidal blocks of the adapter frames 35, it will move upward along the shape of the trapezoidal blocks. The upward movement of the rotating wheel 45 drives the sliding rod 44 to slide upward inside the limiting rod 43, and the upward sliding of the rotating wheel 45 drives the reset plate 46 moves upward, the upward movement of the reset plate 46 causes the reset spring 47 to undergo elastic deformation, thereby stretching the reset spring 47, and at the same time, the sliding rod 44 slides upward to drive its inclined surface to move upward synchronously, and since the inclined surface of the connecting Z rod 412 conflicts with the inclined surface of the sliding rod 44, the inclined surface of the sliding rod 44 moves upward to squeeze the inclined surface of the connecting Z rod 412, so that the connecting Z rod 412 slides inside the sliding groove 49 toward the end away from the sliding rod 44, and the connecting Z rod 412 slides toward the end away from the sliding rod 44, driving the resistance spring 411 to be The connecting Z rod 412 is squeezed, and as the connecting Z rod 412 slides toward the end away from the sliding rod 44, the connecting Z rod 412 no longer blocks the discharge pipe 413 and the raw material shell 48, and the lubricating liquid inside the raw material shell 48 falls from the inside of the discharge pipe 413 to the upper surface of the adapter frame 35 under the action of gravity; the trapezoidal block on the outer surface of the adapter frame 35 contacts the rotating wheel 45, thereby pushing the connecting Z rod 412 to move, so that the connecting Z rod 412 no longer blocks the discharge pipe 413 and the raw material shell 48, and the lubricant inside the raw material shell 48 will drip into The automatic application of lubricant is realized in the mold inside the adapter frame 35, which improves the automation degree of the production line, reduces manual operation, and reduces labor intensity. At the same time, lubricant is applied only when the adapter frame 35 passes by, avoiding waste of lubricant, reducing production costs, and improving resource utilization efficiency. Compared with the existing automatic addition of electrical signals triggered by sensors, the above addition is relatively simple, and the cost of maintenance and replacement is relatively low. In addition, in the cold forging environment, factors such as high temperature, vibration, and impact will affect the stability and reliability of the sensor;

[0073] As the adapter frame 35 moves, the trapezoidal block of the adapter frame 35 no longer conflicts with the rotating wheel 45. At this time, under the combined effect of gravity and the elastic contraction of the return spring 47, the sliding rod 44 will return to its initial state. At the same time, under the elastic extension of the conflicting spring 411, the connecting Z rod 412 will block the discharge pipe 413 and the raw material housing 48 again.

[0074] At this time, lubricant will be added to the inside of the adapter frames 35 on both sides simultaneously. Adding lubricant to the mold before cold forging can ensure that the contact surface between the mold and the hydraulic press 1 is smooth and reduce the wear caused by friction. Adding lubricant to the mold after cold forging can form a protective film on the surface of the mold and the heat dissipation substrate to prevent them from being damaged by environmental factors.

[0075] Placement of heat dissipation substrate:

[0076] During the placement of the above-mentioned mold, the mold will be moved to the upper surface of the cold forging table 11. At this time, the operator controls the external manipulator to place the heat dissipation substrate to be cold forged inside the mold, and then starts the hydraulic press 1 to cold forge the heat dissipation substrate.

[0077] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0078] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-purity oxygen-free copper needle-type heat dissipation substrate cold forging device, comprising a hydraulic press (1), wherein a cold forging table (11) is arranged inside the hydraulic press (1), characterized in that: The outer surface of the hydraulic press (1) is provided with a driving component (2) for transporting the heat dissipation substrate to be cold forged to the inside of the cold forging table (11); the side of the hydraulic press (1) away from the driving component (2) is provided with an external manipulator for placing the heat dissipation substrate; a placement component (3) for placing the heat dissipation substrate to be cold forged is provided above the driving component (2); and an adding component (4) for reducing friction and wear during the cold forging process is provided above the driving component (2).

2. A high-purity oxygen-free copper needle-type heat dissipation substrate cold forging device according to claim 1, characterized in that: The driving assembly (2) comprises a driving platform (21), the driving platform (21) is fixedly connected to the outer wall of the hydraulic press (1), a supporting leg (22) is symmetrically fixedly connected to the bottom of one end of the driving platform (21) away from the hydraulic press (1), a linear groove (23) is symmetrically penetrated through the upper surface of the driving platform (21), a limiting groove (24) is symmetrically penetrated through the upper surface of the driving platform (21), a limiting column (25) is symmetrically fixedly connected to the upper surface of the driving platform (21), a rotating block (26) is rotatably connected to the bottom of the driving platform (21), and a conveyor belt (27) is transmission-connected to the outer surface of the rotating block (26), and the conveyor belt The inner surface of the drive platform (27) is rotatably connected to a rotating block (28); the outer surface of the drive platform (21) is penetrated by a driving column (29) rotatably connected; the bottom of the driving column (29) is fixedly connected to a driving gear (210); a surface of the driving gear (210) close to the drive platform (21) is fixedly connected to a plurality of toggle rods (211); the bottom of the drive platform (21) is fixedly connected to a fixed column (212); an end of the fixed column (212) away from the drive platform (21) is rotatably connected to an adapting gear (213); a surface of the adapting gear (213) close to the drive platform (21) is fixedly connected to a plurality of toggle rods (214).

3. A high-purity oxygen-free copper needle-type heat dissipation substrate cold forging device according to claim 2, characterized in that: The placement assembly (3) comprises two sliding frames (31), the two sliding frames (31) are fixedly connected to the outer surface of the conveyor belt (27), the ends of the two sliding frames (31) away from the conveyor belt (27) are respectively slidably connected to the inside of the two linear grooves (23), and the two sliding frames (31) are respectively slidably connected to the outer surfaces of the two limit columns (25), the upper surfaces of the two sliding frames (31) are slidably connected to the sliding plates (32), and the lower surfaces of the two sliding plates (32) are fixedly connected to the connecting The two connecting rods (33) are rotatably connected to an adapting wheel (34) at one end away from the sliding plate (32), and the two adapting wheels (34) are respectively slidably connected to the inside of two limiting grooves (24). The two sliding plates (32) are fixedly connected to an adapting frame (35) at one end close to the cold forging table (11). The inside of the two adapting frames (35) are arranged in a linear array and symmetrically fixedly connected to limiting blocks (36), and the two adapting frames (35) are fixedly connected to a trapezoidal block on the side away from each other.

4. A high-purity oxygen-free copper needle-type heat dissipation substrate cold forging device according to claim 1, characterized in that: The adding component (4) comprises two connecting blocks (41), the two connecting blocks (41) are respectively fixedly connected to the two sides of the outer surface of the driving platform (21), the upper surfaces of the two connecting blocks (41) are symmetrically fixedly connected with the support frames (42), and a limiting rod (43) is fixedly connected between every two adjacent support frames (42), the upper surfaces of the two limiting rods (43) are slidably connected with a sliding rod (44), the lower surfaces of the two sliding rods (44) are rotatably connected with a rotating wheel (45), the outer surfaces of the two sliding rods (44) are symmetrically fixedly connected with a reset plate (46), and the lower surface of each reset plate (46) is fixedly connected with a reset spring (47), and the two support frames (42) are fixedly connected to each other. The ends of the support frame (42) away from the connecting block (41) are fixedly connected to the raw material shell (48), the upper surfaces of the two raw material shells (48) are penetrated with sliding grooves (49), the tops of the inner cavities of the two raw material shells (48) are fixedly connected to positioning plates (410), the sides of the two positioning plates (410) close to the connecting block (41) are fixedly connected to resistance springs (411), the ends of the two resistance springs (411) away from the positioning plates (410) are fixedly connected to connecting Z rods (412), the bottoms of the two raw material shells (48) are fixedly connected to discharge pipes (413), and the upper surfaces of the two raw material shells (48) are fixedly connected to feed pipes (414).

5. The high-purity oxygen-free copper needle-type heat dissipation substrate cold forging device according to claim 2, characterized in that: The rotating block 2 (28) is connected to the rotating block 1 (26) through a conveyor belt (27). The end of the rotating block 2 (28) away from the driving platform (21) is provided with toggle grooves arranged in a circular array. The end of the driving column (29) away from the driving gear (210) is drivably mounted on an external motor. The driving gear (210) is meshed with an adapting gear (213). The outer surface size of the toggle rod 1 (211) and the outer surface size of the toggle rod 2 (214) are both adapted to the inner cavity size of the toggle groove of the rotating block 2 (28).

6. A high-purity oxygen-free copper needle-type heat dissipation substrate cold forging device according to claim 4, characterized in that: The upper surface of the sliding rod (44) is set as an inclined surface, the end of the reset spring (47) away from the reset plate (46) is fixedly connected to the upper surface of the limit rod (43), the end of the resistance spring (411) away from the positioning plate (410) is fixedly connected to the connecting Z rod (412), the connecting Z rod (412) is slidably connected to the inside of the sliding groove (49), the end of the connecting Z rod (412) close to the sliding rod (44) is set as an inclined surface, the inclined surface of the connecting Z rod (412) is in conflict with the inclined surface of the sliding rod (44), the bottom of the connecting Z rod (412) blocks the discharge pipe (413) and the raw material shell (48), and the end of the discharge pipe (413) away from the raw material shell (48) is set to be funnel-shaped.

7. A high-purity oxygen-free copper needle-type heat dissipation substrate cold forging process, applied to a high-purity oxygen-free copper needle-type heat dissipation substrate cold forging device as described in any one of claims 1 to 6, characterized in that: The following steps are involved: Step 1: Material preparation: Select high-purity oxygen-free copper as the raw material to ensure that the material has good thermal conductivity and corrosion resistance; Step 2: Die installation: Install the designed die on the cold forging device, and perform precise debugging and calibration to ensure that the die and the press are tightly matched; Step 3: Feeding and positioning: Feed the pre-treated oxygen-free copper billet into the cold forging device and accurately position it through the feeding mechanism to ensure that the billet is accurately positioned in the mold. Step 4: Cold forging: Start the press of the cold forging device to apply gradually increasing pressure to the oxygen-free copper blank in the mold. Under the action of pressure, the blank undergoes plastic deformation and gradually fills the mold cavity; Step 5: Pressure holding and cooling: After the blank completely fills the mold cavity, continue to apply pressure to allow the blank to fully cool and solidify in the mold. At the same time, use water to cool the mold and blank to accelerate the cooling speed of the blank and prevent overheating and deformation; Step 6: Demolding and subsequent processing: After the blank is cooled, open the mold and take out the cold-forged heat dissipation substrate, and deburr, clean and heat-treat the cold-forged heat dissipation substrate.

8. The cold forging process of the high-purity oxygen-free copper needle-type heat dissipation substrate according to claim 7 is characterized in that: In the step 1, after the material is selected, the oxygen-free copper raw material is pre-treated, cut into blanks that match the mold, and the surface is cleaned and deoxidized to ensure the smooth progress of the subsequent cold forging process.

9. The cold forging process of the high-purity oxygen-free copper needle-type heat dissipation substrate according to claim 7, characterized in that: In the step three, before the oxygen-free copper billet is fed into the cold forging device, a lubricant is applied between the die and the billet to reduce friction and wear during the cold forging process and improve the surface quality of the product.

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