Accurate positioning pressurizing machine for accessory machining

Abstract

The invention discloses a precise positioning pressurizing machine for accessory machining, and belongs to the field of pressurizing machines. A precise positioning pressurizing machine for accessory machining comprises a lower die base and an upper fixing block arranged above the lower die base in a sliding mode, an upper connecting plate is arranged at the bottom of the upper fixing block, and an upper die base is arranged at the bottom of the upper connecting plate; the pressurizing head is slidably arranged at the bottom of the upper die base; the pressurizing groove corresponds to the pressurizing head in position and is formed in the lower die holder; the material injection barrel and the positioning barrel are both arranged on the upper die base, a piston is slidably connected into the material injection barrel, and an annular fixing block fixedly connected with the pressurizing head is slidably connected into the positioning barrel; the material box is arranged on the upper fixing block, and a material conveying pipe is connected between the bottom of the material box and the bottom of the material injection barrel; when the device is used, material sucking and discharging operation can be intermittently achieved, the whole work is more coherent, the strength of manual intervention is reduced, the working efficiency is improved, the effect of secondary pressurization can be achieved, and the whole pressurization effect is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of pressing machines, in particular to a precise positioning pressing machine for accessory machining. BACKGROUND

[0002] The accessory pressing machine is a device for applying controllable pressure to various accessories (such as metal parts, plastic parts and composite material parts) to complete specific machining processes in machining, and the core purpose is to realize precise forming of the accessories. At present, the accessory machining pressing machine is usually powder forming. In the application scene of the powder pressing machine, granular powder materials are placed into a mold, and the materials are pressed into solid elements with uniform density, such as round pieces and polygonal pieces, by a pressing mechanism.

[0003] The precise positioning pressing machine for accessory machining in the prior art has single setting for each step process, high manual intervention intensity, very low efficiency, certain safety hazards, single pressing, insufficient filling of gaps due to pressure decay, generation of pressing defective products, forming defects, and subsequent cleaning trouble. Therefore, the application is proposed. SUMMARY

[0004] The application aims to solve the problems in the prior art and provides a precise positioning pressing machine for accessory machining.

[0005] In order to achieve the above-mentioned purpose, the application adopts the following technical scheme. A precise positioning pressing machine for accessory machining comprises a lower die seat and further comprises: An upper fixed block is slidably arranged above the lower die seat, the bottom of the upper fixed block is provided with an upper connecting plate, and the bottom of the upper connecting plate is provided with an upper die seat; A pressing head is slidably arranged at the bottom of the upper die seat; A pressing groove corresponding to the position of the pressing head is arranged on the lower die seat; An injection cylinder and a positioning cylinder are fixedly arranged on the upper die seat, a piston is slidably connected in the injection cylinder, and an annular fixed block fixedly connected with the pressing head is slidably connected in the positioning cylinder; A material box is fixedly arranged on the upper fixed block, and a material conveying pipe is connected between the bottom of the material box and the bottom of the injection cylinder.

[0006] Preferably, a cross plate is further arranged above the upper fixed block, the bottom of the cross plate is fixedly connected with a first push rod and a second push rod, the first push rod is slidably connected in the injection cylinder and fixedly connected with the piston, and the second push rod is inserted into the positioning cylinder.

[0007] Furthermore, a capillary tube is provided at the bottom of the injection barrel, and the pressure head is slidably arranged on the capillary tube. An injection port corresponding to the capillary tube is also provided at the bottom of the injection barrel. When the horizontal plate moves downward, the first push rod will push the piston to discharge the material from the capillary tube, and the second push rod will push the annular fixed block to move, driving the pressure head to realize the pressurization operation.

[0008] Furthermore, an annular hollow block is slidably connected in the positioning cylinder, a first elastic piece is provided between the annular hollow block and the annular fixed block, and a second elastic piece is provided between the annular hollow block and the top inner wall of the positioning cylinder.

[0009] Preferably, it also includes a base plate, on which a lower fixed block is provided, and the lower fixed block is provided between the base plate and the lower mold base, and the base plate, the lower fixed block and the lower mold base are fixedly connected, and a guide support rod is also provided on the base plate, and the top of the guide support rod is fixedly connected to a top plate, and a first cylinder and a second cylinder are provided on the top plate.

[0010] Furthermore, the transverse plate is arranged at the output end of the first cylinder, the upper fixed block is slidably arranged on the guide support rod, and the upper fixed block is arranged at the output end of the second cylinder.

[0011] Preferably, a double-sided rack plate is provided at the bottom of the top plate, and multiple stirring shafts are rotatably connected in the material box, and a toggle block is fixedly connected to the outer walls of the multiple stirring shafts. The ends of the multiple stirring shafts placed outside the material box are connected to a rotating shaft, and the outer walls of the rotating shafts are provided with mutually meshing gears, and the topmost gear is meshed with the double-sided rack plate.

[0012] Furthermore, a limiting block is fixedly connected to the outer wall of the material box, and the limiting block is abutted against the bottom of the top plate. The material delivery pipe can enable the material box to deliver material into the injection barrel. The material delivery pipe is arranged inside the upper fixed block, the upper connecting plate and the upper mold base, and a one-way valve is provided on the material delivery pipe and the capillary tube.

[0013] Preferably, a slide groove is provided in the lower mold base, a support plate is slidably provided in the pressure groove, an auxiliary plate is provided in the slide groove, thin rods are provided on both ends of the auxiliary plate, the top of the thin rod is placed outside the lower mold base and connected to a circular plate, and a connecting rod is connected between the middle position of the auxiliary plate and the bottom outer wall of the support plate.

[0014] Furthermore, a circular hole corresponding to the position of the circular plate is provided on the lower mold base, a spring is provided between the inner wall of the circular hole and the circular plate, the spring is sleeved on the outer wall of the thin rod, the bottom of the upper connecting plate is fixedly connected to a fixing rod, the bottom of the fixing rod is provided with a pressure plate corresponding to the position of the circular plate, the outer wall of the pressure plate is provided with a pressure switch, and an electric heating ring is provided on the outer wall of one end of the injection barrel placed in the upper mold base, and the pressure switch is electrically connected to the electric heating ring.

[0015] Compared with the prior art, the present invention provides a precise positioning press for parts processing, which has the following beneficial effects: 1. The precise positioning pressurizing machine used for processing the accessories can extract the material in the material box into the injection barrel by moving the upper fixed block. Controlling the movement of the horizontal plate can drive the first push rod and the second push rod connected to the bottom of the horizontal plate to move. The first push rod will squeeze the powder material in the injection barrel and discharge it from the capillary to between the pressurizing head and the pressurizing groove. At the same time, the second push rod will push the annular fixed block located in the positioning barrel to move, thereby driving the pressurizing head connected to the annular fixed block to move downward, thereby realizing the pressurization operation of the powder. When the pressurization operation is completed, the upper fixed block can be controlled to move, thereby controlling the upper die base and the pressurizing head to move downward, thereby realizing the secondary pressurization effect and improving the overall pressurization effect.

[0016] 2. The accessories are processed with a precise positioning press. When the upper fixed block moves downward, multiple gears will start to rotate, and then the stirring shaft will drive the toggle block connected to its outer wall to rotate, thereby stirring the powder material to avoid its accumulation, and better realize the subsequent feeding operation, which is convenient for subsequent use.

[0017] 3. The precision positioning pressurizing machine used for processing the accessories is reset through the upper fixed block. Under the action of the spring, the circular plate can drive the thin rod to reset, and then the supporting plate can be driven to reset through the connecting rod. During the reset of the supporting plate, the pressurized parts in the pressurizing tank can be pushed, thereby driving them to move upward and move them out of the pressurizing tank, making it convenient for workers to take them out, reducing the intensity of manual intervention, improving work efficiency, and no safety hazards occur.

[0018] 4. The processing of this accessory uses a precise positioning pressurizing machine. The pressure switch will drive the electric heating ring electrically connected to it to work, thereby heating the bottom position of the injection barrel. When the powder material in the injection barrel is discharged, it can achieve a certain preheating effect. After the metal powder is heated, the atomic activity on the surface of the particles increases, and the overall plasticity and fluidity of the powder are improved. When pressurized, the powder particles are more likely to slip, rearrange and fill the tiny gaps in the mold cavity, thereby increasing its density and reducing internal defects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of a precise positioning press for parts processing proposed by the present invention; Figure 2 This is a structural schematic diagram of the bottom of a precise positioning press for parts processing proposed by the present invention; Figure 3This is a schematic diagram of the structure of the upper die base and the pressurizing groove in the precise positioning pressurizing machine for parts processing proposed by the present invention; Figure 4 This is a cross-sectional schematic diagram of a lower die base in a precise positioning press for parts processing proposed by the present invention; Figure 5 This is a structural schematic diagram of an upper die base and a pressing head in a precise positioning press for parts processing proposed by the present invention; Figure 6 This is a cross-sectional schematic diagram of an upper die base, an injection cylinder and a positioning cylinder in a precise positioning press for parts processing proposed by the present invention; Figure 7 This is a structural schematic diagram of a material box in a precise positioning press for parts processing proposed by the present invention; Figure 8 This is a structural schematic diagram of a material injection barrel in a precise positioning press for parts processing proposed by the present invention; Figure 9 This is a schematic cross-sectional view of a material box in a precise positioning press for parts processing proposed by the present invention.

[0020] In the figure: 1. Bottom plate; 101. Lower fixed block; 102. Lower die base; 103. Guide support rod; 104. Top plate; 105. First cylinder; 106. Second cylinder; 107. Upper fixed block; 108. Upper connecting plate; 109. Upper die base; 110. Pressurizing head; 2. Pressurizing groove; 201. Support plate; 202. Slide groove; 203. Auxiliary plate; 204. Thin rod; 205. Round plate; 206. Spring; 207. Connecting rod; 208. Round hole; 3. Injection barrel; 301. Piston; 302. First push rod; 303, horizontal plate; 304, second push rod; 305, positioning cylinder; 306, annular fixing block; 307, annular hollow block; 308, first spring piece; 309, second spring piece; 310, electric heating ring; 311, injection port; 312, capillary tube; 4, material box; 401, limit block; 402, double-sided rack plate; 403, gear; 404, rotating shaft; 405, stirring shaft; 406, toggle block; 407, material delivery pipe; 5, fixing rod; 501, pressure plate; 502, pressure switch. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0022] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0023] Embodiment one: refer to Figures 1-8 A precision positioning and pressing machine for accessory machining, comprising a lower die seat 102, further comprising an upper fixed block 107 slidingly arranged above the lower die seat 102, the bottom of the upper fixed block 107 is provided with an upper connecting plate 108, the bottom of the upper connecting plate 108 is provided with an upper die seat 109, and a pressing head 110 is further slidingly arranged at the bottom of the upper die seat 109, a pressing groove 2 corresponding to the position of the pressing head 110 is arranged on the lower die seat 102, further comprising a material injection cylinder 3 and a positioning cylinder 305, both of which are fixedly arranged on the upper die seat 109, a piston 301 is slidingly connected in the material injection cylinder 3, and an annular fixed block 306 fixedly connected with the pressing head 110 is slidingly connected in the positioning cylinder 305; a material tank 4 is fixedly arranged on the upper fixed block 107, and a material conveying pipe 407 is connected between the bottom of the material tank 4 and the bottom of the material injection cylinder 3.

[0024] In this embodiment, before use, first inject powder material into the material tank 4, then first control the upper fixed block 107 to move downward, then drive the upper die seat 109 and the pressing head 110 to move through the upper connecting plate 108, so that the upper die seat 109 and the pressing head 110 are inserted into the pressing groove 2, while the upper fixed block 107 moves downward, the material injection cylinder 3 will draw powder material into the material tank 4, so that the powder in the material tank 4 enters the material injection cylinder 3 through the material conveying pipe 407, after the upper die seat 109 and the pressing head 110 are placed in the pressing groove 2, then control the piston 301 in the material injection cylinder 3 to move, extrude the powder in the material injection cylinder 3, and inject it into the position between the pressing head 110 and the pressing groove 2, and at the same time of injection, the annular fixed block 306 in the positioning cylinder 305 will move downward, thereby driving the pressing head 110 to move, and the powder material is pressed, so that the powder material is pressed into shape, in this application, the operation of automatic material drawing and then pressing can be realized, the operation is more coherent, the work efficiency is improved, and after the pressing is completed, the upper fixed block 107 can be controlled to continue to move, so that the upper fixed block 107 generates a downward moving force, thereby further pressing the powder material, realizing the effect of multiple pressing, the accessory porosity can be reduced from 3%-5% to 1%, the density is significantly improved, the compressive strength is increased by 15%-20%, and the overall quality is improved.

[0025] It should be noted that Figure 3When the upper fixed block 107 moves for the first time, there will be a certain gap between the upper connecting plate 108 and the lower mold base 102. When the powder injection is completed, the upper fixed block 107 can be controlled to move again. At this time, the moving distance is shorter, which can achieve the effect of secondary pressurization and improve the effect of pressurization molding.

[0026] Example 2: Reference Figures 1-8 , a precise positioning pressurizing machine for processing accessories, including a lower die base 102, and also including an upper fixed block 107 slidably arranged above the lower die base 102, and an upper connecting plate 108 is provided at the bottom of the upper fixed block 107, and an upper die base 109 is provided at the bottom of the upper connecting plate 108, and a pressing head 110 is also slidably arranged at the bottom of the upper die base 109, and a pressing groove 2 corresponding to the position of the pressing head 110 is provided on the lower die base 102, and also includes an injection cylinder 3 and a positioning cylinder 305, and the injection cylinder 3 and the positioning cylinder 305 are both fixedly arranged on the upper die base 109, and a piston 301 is slidably connected in the injection cylinder 3, and an annular fixed block 306 fixedly connected to the pressing head 110 is slidably connected in the positioning cylinder 305; a material box 4 is fixedly arranged on the upper fixed block 107, and a material delivery pipe 407 is connected between the bottom of the material box 4 and the bottom of the injection cylinder 3.

[0027] It also includes a horizontal plate 303, which is slidably arranged above the upper fixed block 107. The bottom of the horizontal plate 303 is fixedly connected with a first push rod 302 and a second push rod 304. The first push rod 302 is slidably connected in the injection barrel 3 and is fixedly connected to the piston 301. The second push rod 304 is inserted in the positioning barrel 305.

[0028] A capillary tube 312 is provided at the bottom of the injection barrel 3, and the pressure head 110 is slidably set on the capillary tube 312. An injection port 311 corresponding to the capillary tube 312 is also provided at the bottom of the injection barrel 3. When the horizontal plate 303 moves downward, the first push rod 302 will push the piston 301 to discharge the material from the capillary tube 312, and the second push rod 304 will push the annular fixed block 306 to move, driving the pressure head 110 to realize the pressurizing operation.

[0029] In this embodiment, when the upper fixed block 107, the upper connecting plate 108, the upper die seat 109 and the pressure head 110 move downward, the material in the material box 4 will be extracted into the injection barrel 3 through the feeding pipe 407, and then the cross plate 303 will be controlled to move, thereby driving the first push rod 302 and the second push rod 304 connected to the bottom of the cross plate 303 to move, and the first push rod 302 will drive the piston 301 connected thereto to move downward, thereby squeezing the powder material in the injection barrel 3, so that it enters the injection port 311 and is then discharged from the capillary 312, so that the powder material enters the pressure head 110 and the pressure head 110. Between the pressurizing grooves 2, the second push rod 304 will be inserted into the positioning cylinder 305 and continue to move downward. After the piston 301 moves to the bottom of the injection cylinder 3, the second push rod 304 will push the annular fixing block 306 located in the positioning cylinder 305 to move, thereby driving the pressurizing head 110 connected to the annular fixing block 306 to move downward, thereby realizing the pressurization operation of the powder. When the pressurization operation is completed, the upper fixed block 107 can be controlled to move, thereby controlling the upper mold base 109 and the pressurizing head 110 to move downward, thereby realizing the secondary pressurization effect and improving the overall pressurization effect.

[0030] An annular hollow block 307 is slidably connected to the positioning tube 305 . A first elastic piece 308 is provided between the annular hollow block 307 and the annular fixed block 306 . A second elastic piece 309 is provided between the annular hollow block 307 and the top inner wall of the positioning tube 305 .

[0031] When the second push rod 304 pushes the annular fixing block 306 to move downward, it stretches the first spring piece 308 and the second spring piece 309 to deform them. When the second push rod 304 extends from the positioning cylinder 305, the deformed first spring piece 308 and the second spring piece 309 will automatically reset, thereby driving the annular fixing block 306 and the pressure head 110 to reset, so that the pressure head 110 can fit closely with the upper mold base 109, which is convenient for repeated use. It should be noted that in the initial control of the upper fixing block 107 to move downward, During the process, since the second push rod 304 does not resist and push the annular fixed block 306, the pressure head 110 and the upper mold base 109 are in a fitted state at this time. Only after the subsequent powder material is filled, the pressure head 110 will move and achieve the pressurization effect. The set annular hollow block 307 can limit the second push rod 304. At the same time, the annular hollow block 307 slides in the positioning cylinder 305, and can also limit the first spring piece 308 and the second spring piece 309, which is more convenient for subsequent use.

[0032] Example 3: Reference Figures 1-9, a precise positioning pressurizing machine for processing accessories, including a lower die base 102, and also including an upper fixed block 107 slidably arranged above the lower die base 102, and an upper connecting plate 108 is provided at the bottom of the upper fixed block 107, and an upper die base 109 is provided at the bottom of the upper connecting plate 108, and a pressing head 110 is also slidably arranged at the bottom of the upper die base 109, and a pressing groove 2 corresponding to the position of the pressing head 110 is provided on the lower die base 102, and also includes an injection cylinder 3 and a positioning cylinder 305, and the injection cylinder 3 and the positioning cylinder 305 are both fixedly arranged on the upper die base 109, and a piston 301 is slidably connected in the injection cylinder 3, and an annular fixed block 306 fixedly connected to the pressing head 110 is slidably connected in the positioning cylinder 305; a material box 4 is fixedly arranged on the upper fixed block 107, and a material delivery pipe 407 is connected between the bottom of the material box 4 and the bottom of the injection cylinder 3.

[0033] It also includes a base plate 1, on which a lower fixed block 101 is provided, and the lower fixed block 101 is arranged between the base plate 1 and the lower mold base 102. The base plate 1, the lower fixed block 101 and the lower mold base 102 are fixedly connected. A guide support rod 103 is also provided on the base plate 1, and the top of the guide support rod 103 is fixedly connected to a top plate 104. The top plate 104 is provided with a first cylinder 105 and a second cylinder 106. The guide support rod 103 can make the upper fixed block 107 move more stably and convenient to use. The base plate 1, the lower fixed block 101 and the lower mold base 102 are fastened together, and the upper fixed block 107, the upper connecting plate 108 and the upper mold base 109 are fastened together.

[0034] The horizontal plate 303 is arranged at the output end of the first cylinder 105 , the upper fixing block 107 is slidably arranged on the guide support rod 103 , and the upper fixing block 107 is arranged at the output end of the second cylinder 106 .

[0035] In this embodiment, the movement of the upper fixed block 107 and the piston 301 in the previous embodiment 1 and embodiment 2 is described more accurately, that is, when starting to work, the second cylinder 106 is first started to drive the upper fixed block 107 at the output end to move downward. During this process, the first cylinder 105 does not work, and the distance between the horizontal plate 303 at the output end and the first cylinder 105 does not change, that is, the first push rod 302 and the second push rod 304 connected to the horizontal plate 303 do not move, and the upper fixed block 107 is moved downward. When the fixed block 107 moves, it also drives the injection barrel 3 and the positioning barrel 305 to start moving downward. Therefore, when the injection barrel 3 moves downward, the position of the injection barrel 3 relative to the piston 301 will change, that is, the space between the piston 301 and the bottom of the injection barrel 3 will gradually increase. Under the action of negative pressure, the material will be drawn into the material box 4 through the material delivery pipe 407, so that the material enters between the piston 301 and the bottom inner wall of the injection barrel 3. When the upper mold base 109 and the pressure head 110 move into the pressure tank 2, they stop; Then start the first cylinder 105 to drive the horizontal plate 303 at the output end to move. As in the second embodiment, the first push rod 302 and the second push rod 304 will respectively perform the injection and pressurization operations, thereby performing preliminary pressurization, and then the second cylinder 106 is started here to achieve the secondary pressurization effect, thereby improving the pressurization molding effect.

[0036] A double-sided rack plate 402 is provided at the bottom of the top plate 104, and multiple stirring shafts 405 are rotatably connected in the material box 4. The outer walls of the multiple stirring shafts 405 are fixedly connected with a toggle block 406. The ends of the multiple stirring shafts 405 placed outside the material box 4 are all connected to the rotating shaft 404, and the outer walls of the rotating shaft 404 are provided with mutually meshing gears 403. The top gear 403 is meshed with the double-sided rack plate 402.

[0037] A limiting block 401 is fixedly connected to the outer wall of the material box 4, and the limiting block 401 is against the bottom of the top plate 104. The feed pipe 407 can enable the material box 4 to feed material into the injection barrel 3. The feed pipe 407 is arranged inside the upper fixed block 107, the upper connecting plate 108 and the upper mold base 109, and a one-way valve is provided on the feed pipe 407 and the capillary 312.

[0038] The limit block 401 provided can limit the material box 4 to a certain extent, so that the gear 403 on the material box 4 will not collide with the top plate 104, and can be used better. In this application, the material box 4 is movable, and the gear 403 on its outer wall will not interfere with other components.

[0039] In this embodiment, while the upper fixed block 107 moves downward, the gear 403 located at the top will also engage with the double-sided rack plate 402, thereby driving multiple gears 403 to start rotating, and then driving the stirring shaft 405 to rotate through the rotating shaft 404, so that the stirring shaft 405 drives the toggle block 406 connected to its outer wall to rotate, thereby stirring the powder material and avoiding its accumulation, which can better realize the subsequent feeding operation and facilitate subsequent use.

[0040] In addition, both the delivery pipe 407 and the capillary tube 312 are provided with one-way valves, so that the delivery pipe 407 can only realize the delivery operation into the injection barrel 3, and the capillary tube 312 can only realize the discharge operation, and there will be no interference between the two.

[0041] Example 4: Reference Figures 1-9, a precise positioning pressurizing machine for processing accessories, including a lower die base 102, and also including an upper fixed block 107 slidably arranged above the lower die base 102, and an upper connecting plate 108 is provided at the bottom of the upper fixed block 107, and an upper die base 109 is provided at the bottom of the upper connecting plate 108, and a pressing head 110 is also slidably arranged at the bottom of the upper die base 109, and a pressing groove 2 corresponding to the position of the pressing head 110 is provided on the lower die base 102, and also includes an injection cylinder 3 and a positioning cylinder 305, and the injection cylinder 3 and the positioning cylinder 305 are both fixedly arranged on the upper die base 109, and a piston 301 is slidably connected in the injection cylinder 3, and an annular fixed block 306 fixedly connected to the pressing head 110 is slidably connected in the positioning cylinder 305; a material box 4 is fixedly arranged on the upper fixed block 107, and a material delivery pipe 407 is connected between the bottom of the material box 4 and the bottom of the injection cylinder 3.

[0042] A slide groove 202 is provided in the lower mold base 102, a support plate 201 is slidably provided in the pressure groove 2, an auxiliary plate 203 is provided in the slide groove 202, thin rods 204 are provided on both ends of the auxiliary plate 203, the top of the thin rod 204 is placed outside the lower mold base 102 and is connected to a circular plate 205, and a connecting rod 207 is connected between the middle position of the auxiliary plate 203 and the bottom outer wall of the support plate 201.

[0043] A circular hole 208 corresponding to the position of the circular plate 205 is provided on the lower mold base 102, and a spring 206 is provided between the inner wall of the circular hole 208 and the circular plate 205. The spring 206 is sleeved on the outer wall of the thin rod 204. The bottom of the upper connecting plate 108 is fixedly connected to the fixing rod 5, and the bottom of the fixing rod 5 is provided with a pressure plate 501 corresponding to the position of the circular plate 205. The outer wall of the pressure plate 501 is provided with a pressure switch 502. An electric heating ring 310 is provided on the outer wall of one end of the injection barrel 3 placed in the upper mold base 109, and the pressure switch 502 is electrically connected to the electric heating ring 310.

[0044] In the present invention, when the upper fixed block 107 moves downward, the fixed rod 5 and the pressure plate 501 will move downward, and the pressure plate 501 will touch the circular plate 205 and press the circular plate 205 to move downward, and then the auxiliary plate 203 will be driven to move downward in the slide groove 202 through the thin rod 204, so that the connecting rod 207 drives the support plate 201 to move downward, so that the support plate 201 moves to the bottom of the pressure groove 2 and fits into the bottom inner wall of the pressure groove 2, so that the subsequent pressurization process is more stable, and after the pressurization is completed, the upper fixed block 107 is reset, and under the action of the spring 206, the circular plate 205 can drive the thin rod 204 to reset, thereby driving the auxiliary plate 203 to reset, and the supporting plate 201 can be driven to reset through the connecting rod 207. During the resetting process of the support plate 201, it can push the pressurized parts in the pressurizing tank 2, thereby driving them to move upward and move them out of the pressurizing tank 2, making it easier for workers to take them out. Furthermore, when the pressure plate 501 contacts the circular plate 205, it will squeeze the pressure switch 502, and the pressure switch 502 will drive the electric heating ring 310 electrically connected to it to work, thereby heating the bottom position of the injection barrel 3. When the powder material in the injection barrel 3 is discharged, a certain preheating effect can be achieved. After the metal powder is heated, the atomic activity on the surface of the particles increases, and the overall plasticity and fluidity of the powder are improved. When pressurized, the powder particles are more likely to slip, rearrange and fill the tiny gaps in the mold cavity, thereby increasing its density and reducing internal defects.

[0045] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A precise positioning press for processing accessories, comprising a lower die base (102), characterized in that: Also includes: An upper fixed block (107) is slidably arranged above the lower die base (102), an upper connecting plate (108) is provided at the bottom of the upper fixed block (107), and an upper die base (109) is provided at the bottom of the upper connecting plate (108); A pressure head (110) is slidably disposed at the bottom of the upper die base (109); A pressure groove (2) corresponding to the position of the pressure head (110) is provided on the lower die base (102); The injection barrel (3) and the positioning barrel (305) are both fixedly arranged on the upper die base (109); the piston (301) is slidably connected in the injection barrel (3); and the annular fixing block (306) fixedly connected to the pressure head (110) is slidably connected in the positioning barrel (305); The material box (4) is fixedly mounted on the upper fixed block (107), and a material delivery pipe (407) is connected between the bottom of the material box (4) and the bottom of the injection barrel (3).

2. A precise positioning press for parts processing according to claim 1, characterized in that: It also includes a transverse plate (303), which is slidably arranged above the upper fixed block (107), and the bottom of the transverse plate (303) is fixedly connected to a first push rod (302) and a second push rod (304), respectively. The first push rod (302) is slidably connected in the injection barrel (3) and is fixedly connected to the piston (301), and the second push rod (304) is inserted in the positioning barrel (305).

3. A precise positioning press for parts processing according to claim 2, characterized in that: A capillary tube (312) is provided at the bottom of the injection barrel (3), and the pressure head (110) is slidably arranged on the capillary tube (312). An injection port (311) corresponding to the capillary tube (312) is also provided at the bottom of the injection barrel (3). When the horizontal plate (303) moves downward, the first push rod (302) pushes the piston (301) to discharge the material from the capillary tube (312), and the second push rod (304) pushes the annular fixed block (306) to move, thereby driving the pressure head (110) to realize the pressurization operation.

4. A precise positioning press for parts processing according to claim 3, characterized in that: An annular hollow block (307) is also slidably connected in the positioning cylinder (305), a first elastic piece (308) is provided between the annular hollow block (307) and the annular fixed block (306), and a second elastic piece (309) is provided between the annular hollow block (307) and the top inner wall of the positioning cylinder (305).

5. The precise positioning press for parts processing according to claim 2, characterized in that: The invention also includes a bottom plate (1), wherein a lower fixing block (101) is provided on the bottom plate (1), wherein the lower fixing block (101) is provided between the bottom plate (1) and the lower die base (102), wherein the bottom plate (1), the lower fixing block (101) and the lower die base (102) are fixedly connected, and a guide support rod (103) is further provided on the bottom plate (1), wherein the top of the guide support rod (103) is fixedly connected to a top plate (104), and wherein a first cylinder (105) and a second cylinder (106) are provided on the top plate (104).

6. A precise positioning press for parts processing according to claim 5, characterized in that: The transverse plate (303) is arranged at the output end of the first cylinder (105), the upper fixed block (107) is slidably arranged on the guide support rod (103), and the upper fixed block (107) is arranged at the output end of the second cylinder (106).

7. The precise positioning press for parts processing according to claim 5, characterized in that: A double-sided rack plate (402) is provided at the bottom of the top plate (104), a plurality of stirring shafts (405) are rotatably connected in the material box (4), a toggle block (406) is fixedly connected to the outer walls of the plurality of stirring shafts (405), one end of the plurality of stirring shafts (405) placed outside the material box (4) is connected to a rotating shaft (404), and mutually meshing gears (403) are provided on the outer walls of the rotating shafts (404), and the uppermost gear (403) is meshed with the double-sided rack plate (402).

8. A precise positioning press for parts processing according to claim 7, characterized in that: A limiting block (401) is fixedly connected to the outer wall of the material box (4), and the limiting block (401) is abutted against the bottom of the top plate (104). The material delivery pipe (407) can enable the material box (4) to deliver material into the injection barrel (3). The material delivery pipe (407) is arranged inside the upper fixed block (107), the upper connecting plate (108) and the upper mold base (109). Both the material delivery pipe (407) and the capillary tube (312) are provided with a one-way valve.

9. The precise positioning press for parts processing according to claim 1, characterized in that: A slide groove (202) is provided in the lower die base (102), a support plate (201) is slidably provided in the pressurizing groove (2), an auxiliary plate (203) is provided in the slide groove (202), thin rods (204) are provided on both ends of the auxiliary plate (203), the top of the thin rod (204) is placed outside the lower die base (102) and is connected to a circular plate (205), and a connecting rod (207) is connected between the middle position of the auxiliary plate (203) and the bottom outer wall of the support plate (201).

10. A precise positioning press for parts processing according to claim 9, characterized in that: The lower die base (102) is provided with a circular hole (208) corresponding to the position of the circular plate (205), a spring (206) is provided between the inner wall of the circular hole (208) and the circular plate (205), and the spring (206) is sleeved on the outer wall of the thin rod (204). The bottom of the upper connecting plate (108) is fixedly connected to a fixing rod (5), and the bottom of the fixing rod (5) is provided with a pressure plate (501) corresponding to the position of the circular plate (205), and the outer wall of the pressure plate (501) is provided with a pressure switch (502). The outer wall of one end of the injection barrel (3) placed in the upper die base (109) is provided with an electric heating coil (310), and the pressure switch (502) is electrically connected to the electric heating coil (310).

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