Accurate positioning and pressing machine for accessory processing

Abstract

The application discloses a precise positioning and pressing machine for accessory machining and belongs to the field of pressing machines. The precise positioning and pressing machine for accessory machining comprises a lower die base, an upper fixed block slidingly arranged above the lower die base, an upper connecting plate arranged at the bottom of the upper fixed block, an upper die base arranged at the bottom of the upper connecting plate, a pressing head slidingly arranged at the bottom of the upper die base, a pressing groove corresponding to the position of the pressing head and arranged on the lower die base, an injection cylinder and a positioning cylinder, both of which are arranged on the upper die base, a piston slidingly connected in the injection cylinder, an annular fixed block slidingly connected in the positioning cylinder and fixedly connected with the pressing head, a material box arranged on the upper fixed block, and a material conveying pipe connected between the bottom of the material box and the bottom of the injection cylinder. The application can intermittently realize the operations of material suction and discharge, the overall work is more coherent, the strength of manual intervention is reduced, the work efficiency is improved, the function of secondary pressing can be realized, and the overall pressing effect is improved.

Description

TECHNICAL FIELD

[0001] The present 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 used in machining to apply controllable pressure to various accessories (such as metal parts, plastic parts, composite material parts, etc.) to complete specific machining processes, and its core purpose is to achieve precise forming of accessories. Currently, accessory machining pressing machines are usually powder forming. In the application scenario of powder pressing machines, granular powder materials are placed into a mold, and the material is pressed into a solid element with uniform density, such as a round piece or a polygonal piece, 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, and single pressing, which can cause powder to not fully fill the void due to pressure decay, resulting in pressing defective products and forming defects, and subsequent cleaning is troublesome. Therefore, the present application is proposed. SUMMARY

[0004] The purpose of the present application is to solve the problems in the prior art and provide a precise positioning pressing machine for accessory machining.

[0005] To achieve the above purpose, the present application adopts the following technical scheme:

[0006] A precise positioning pressing machine for accessory machining, comprising a lower die seat, further comprising:

[0007] An upper fixed block slidingly arranged above the lower die seat, the bottom of the upper fixed block being provided with an upper connecting plate, and the bottom of the upper connecting plate being provided with an upper die seat;

[0008] A pressing head slidingly arranged at the bottom of the upper die seat;

[0009] A pressing groove corresponding to the position of the pressing head is arranged on the lower die seat;

[0010] An injection cylinder and a positioning cylinder are fixedly arranged on the upper die seat, the injection cylinder being slidingly connected with a piston, and the positioning cylinder being slidingly connected with an annular fixed block fixedly connected with the pressing head;

[0011] 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.

[0012] Preferably, a horizontal plate is further included, which is slidingly arranged above the upper fixed block, the bottom of the horizontal plate is fixedly connected with a first push rod and a second push rod respectively, the first push rod is slidingly connected in the injection cylinder and fixedly connected with the piston, and the second push rod is inserted in the positioning cylinder.

[0013] Further, the bottom of the injection cylinder is provided with a thin tube, the pressurizing head is slidingly arranged on the thin tube, and the bottom of the injection cylinder is further provided with an injection port corresponding to the thin tube; when the horizontal plate moves downward, the first push rod pushes the piston to discharge the material from the thin tube, and the second push rod pushes the annular fixed block to move, thereby driving the pressurizing head to perform pressurizing operation.

[0014] Further, the positioning cylinder is further slidingly connected with an annular hollow block, the first elastic sheet is arranged between the annular hollow block and the annular fixed block, and the second elastic sheet is arranged between the annular hollow block and the inner wall of the top of the positioning cylinder.

[0015] Preferably, a bottom plate is further included, the bottom plate is provided with a lower fixed block, the lower fixed block is arranged between the bottom plate and the lower die seat, the bottom plate, the lower fixed block and the lower die seat are fixedly connected, the bottom plate is further provided with a guide support rod, the top of the guide support rod is fixedly connected with a top plate, and the top plate is provided with a first air cylinder and a second air cylinder.

[0016] Further, the horizontal plate is arranged at the output end of the first air cylinder, the upper fixed block is slidingly arranged on the guide support rod, and the upper fixed block is arranged at the output end of the second air cylinder.

[0017] Preferably, the bottom of the top plate is provided with a double-sided rack plate, a plurality of stirring shafts are rotatingly connected in the material box, a plurality of the stirring shafts are fixedly connected with a pushing block on the outer wall, one end of the plurality of stirring shafts outside the material box is connected with a rotating shaft, the outer wall of the rotating shaft is provided with a plurality of gears which are intermeshed, and the uppermost gear is intermeshed with the double-sided rack plate.

[0018] Further, the outer wall of the material box is fixedly connected with a limiting block, the limiting block abuts against the bottom of the top plate, the material conveying pipe can convey the material in the material box to the injection cylinder, the material conveying pipe is arranged inside the upper fixed block, the upper connecting plate and the upper die seat, and the material conveying pipe and the thin tube are both provided with a one-way valve.

[0019] Preferably, the lower die seat is provided with a sliding groove, a support plate is slidingly arranged in the pressurizing groove, the sliding groove is provided with an auxiliary plate, the two ends of the auxiliary plate are provided with thin rods, the top of the thin rods is arranged outside the lower die seat and connected with a circular plate, and the middle position of the auxiliary plate is connected with a connecting rod between the bottom outer wall of the support plate.

[0020] Further, the lower die seat is provided with a circular hole corresponding to the position of the circular plate, a spring is arranged 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 with a fixed rod, the bottom of the fixed rod is provided with a pressing plate corresponding to the position of the circular plate, the outer wall of the pressing plate is provided with a pressure switch, one end of the injection cylinder is arranged on the outer wall of the upper die seat and is provided with an electric heating ring, and the pressure switch and the electric heating ring are electrically connected.

[0021] Compared with the prior art, the present application provides a precise positioning and pressing machine for accessory processing, which has the following advantages:

[0022] 1. The precise positioning and pressing machine for accessory processing can extract the material in the material box into the injection cylinder through the movement of the upper fixed block, and the movement of the control plate can drive the first push rod and the second push rod connected to the bottom of the control plate to move, the first push rod can extrude the powder material in the injection cylinder, so that the powder material is discharged from the thin tube to the space between the pressing head and the pressing groove, and at the same time, the second push rod can drive the annular fixed block in the positioning cylinder to move, so as to drive the pressing head connected with the annular fixed block to move downward, thereby realizing the pressing operation of the powder. When the pressing operation is completed, the upper fixed block can be controlled to move again, so as to control the upper die seat and the pressing head to move downward again, thereby realizing the function of secondary pressing and improving the overall pressing effect.

[0023] 2. The precise positioning and pressing machine for accessory processing can make the plurality of gears start to rotate through the downward movement of the upper fixed block, so as to drive the stirring shaft to rotate and drive the stirring block connected to the outer wall of the stirring shaft to rotate, thereby realizing the stirring of the powder material and avoiding the accumulation of the powder material, so that the subsequent material conveying operation can be better realized and subsequent use is facilitated.

[0024] 3. The precise positioning and pressing machine for accessory processing can reset the upper fixed block, and under the action of the spring, the circular plate can drive the thin rod to reset, so that the support plate can be driven to reset through the connecting rod, and in the process of resetting the support plate, the parts in the pressing groove which have completed the pressing operation can be pushed to move upward, so that the parts can be moved out of the pressing groove, which is convenient for workers to take out the parts, reduces the strength of manual intervention, improves the work efficiency, and no safety hazards occur.

[0025] 4. The precise positioning and pressing machine for accessory processing can drive the electric heating ring electrically connected thereto to work through the pressure switch, so as to heat the bottom position of the injection cylinder. When the powder material in the injection cylinder is discharged, a certain preheating effect can be achieved. After the metal powder is heated, the atomic activity of the particle surface increases, the plasticity and fluidity of the powder as a whole are improved, and when the powder is pressed, the powder particles are more likely to slip, rearrange and fill the small gaps of the mold cavity, so that the density is improved and internal defects are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 A structure schematic view of a precise positioning and pressing machine for accessory machining is provided for the present application;

[0027] Figure 2 A structure schematic view of the bottom of a precise positioning and pressing machine for accessory machining is provided for the present application;

[0028] Figure 3 A structure schematic view of the cooperation between the upper die holder and the pressing groove of a precise positioning and pressing machine for accessory machining is provided for the present application;

[0029] Figure 4 A sectional view schematic view of the lower die holder of a precise positioning and pressing machine for accessory machining is provided for the present application;

[0030] Figure 5 A structure schematic view of the upper die holder and the pressing head of a precise positioning and pressing machine for accessory machining is provided for the present application;

[0031] Figure 6 A sectional view schematic view of the upper die holder, the injection cylinder and the positioning cylinder of a precise positioning and pressing machine for accessory machining is provided for the present application;

[0032] Figure 7 A structure schematic view of the material box of a precise positioning and pressing machine for accessory machining is provided for the present application;

[0033] Figure 8 A structure schematic view of the injection cylinder of a precise positioning and pressing machine for accessory machining is provided for the present application;

[0034] Figure 9 A sectional view schematic view of the material box of a precise positioning and pressing machine for accessory machining is provided for the present application.

[0035] In the figure: 1, bottom plate; 101, lower fixed block; 102, lower die holder; 103, guide support rod; 104, top plate; 105, first air cylinder; 106, second air cylinder; 107, upper fixed block; 108, upper connecting plate; 109, upper die holder; 110, pressurizing head; 2, pressurizing groove; 201, support plate; 202, sliding groove; 203, auxiliary plate; 204, thin rod; 205, round plate; 206, spring; 207, connecting rod; 208, round hole; 3, injection cylinder; 301, piston; 302, first push rod; 303, cross plate; 304, second push rod; 305, positioning cylinder; 306, annular fixed block; 307, annular hollow block; 308, first elastic sheet; 309, second elastic sheet; 310, electric heating ring; 311, injection port; 312, thin tube; 4, material box; 401, limiting block; 402, double-sided rack plate; 403, gear; 404, rotating shaft; 405, stirring shaft; 406, pushing block; 407, material conveying pipe; 5, fixed rod; 501, pressing plate; 502, pressure switch. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all.

[0037] 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 therefore cannot be understood as indicating or implying that the device or element 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.

[0038] Embodiment one: refer to Figures 1-8 A precise positioning press for accessory machining, comprising a lower die holder 102, further comprising an upper fixed block 107 slidingly arranged above the lower die holder 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 holder 109, a pressurizing head 110 is further slidingly arranged at the bottom of the upper die holder 109, a pressurizing groove 2 corresponding in position to the pressurizing head 110 is arranged on the lower die holder 102, further comprising an injection cylinder 3 and a positioning cylinder 305, both of which are fixedly arranged on the upper die holder 109, the injection cylinder 3 is slidingly connected with a piston 301 inside, and the positioning cylinder 305 is slidingly connected with an annular fixed block 306 fixedly connected with the pressurizing head 110; the upper fixed block 107 is fixedly provided with a material box 4, and the bottom of the material box 4 is connected with the bottom of the injection cylinder 3 through a material conveying pipe 407.

[0039] In this embodiment, the powder material is first injected into the tank 4 before use, and then the upper fixed block 107 is first controlled to move downward, and then the upper mold base 109 and the pressing head 110 are moved by the upper connecting plate 108, so that the upper mold base 109 and the pressing head 110 are inserted into the pressing groove 2. When the upper fixed block 107 moves downward, the powder material in the tank 4 is extracted into the injection cylinder 3, so that the powder in the tank 4 enters the injection cylinder 3 through the feeding pipe 407. After the upper mold base 109 and the pressing head 110 are placed in the pressing groove 2, the piston 301 in the injection cylinder 3 is controlled to move, and the powder in the injection cylinder 3 is extruded and injected into the position between the pressing head 110 and the pressing groove 2. At the same time of injection, the annular fixed block 306 in the positioning cylinder 305 moves downward, thereby moving the pressing head 110 to press the powder material, so that the powder material is pressed and formed. In this application, the automatic extraction and pressing operation 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 further moved to generate a downward moving force, thereby further pressing the powder material to realize multiple pressing effect, so that the porosity of the accessory can be reduced from 3%-5% to 1%, the density is significantly improved, and the compressive strength is increased by 15%-20%, thereby improving the overall quality.

[0040] It should be noted that the above description refers to Figure 3 When the upper fixed block 107 moves for the first time, there is a gap between the upper connecting plate 108 and the lower mold base 102. After the powder injection is completed, the upper fixed block 107 can be controlled to move again, and the moving distance is short, so that the secondary pressing effect can be realized to improve the pressing forming effect.

[0041] Embodiment two: refer to Figures 1-8 A precise positioning and pressing machine for accessory processing, comprising a lower mold base 102, a upper fixed block 107 slidingly arranged above the lower mold base 102, a upper connecting plate 108 arranged at the bottom of the upper fixed block 107, a upper mold base 109 arranged at the bottom of the upper connecting plate 108, a pressing head 110 slidingly arranged at the bottom of the upper mold base 109, a pressing groove 2 corresponding to the position of the pressing head 110 arranged on the lower mold base 102, an injection cylinder 3 and a positioning cylinder 305, both of which are fixedly arranged on the upper mold base 109, a piston 301 slidingly connected in the injection cylinder 3, and an annular fixed block 306 slidingly connected in the positioning cylinder 305 and fixedly connected with the pressing head 110; a tank 4 fixedly arranged on the upper fixed block 107, and a feeding pipe 407 connected between the bottom of the tank 4 and the bottom of the injection cylinder 3.

[0042] Further comprising a horizontal plate 303, which is slidingly 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 respectively, the first push rod 302 is slidingly connected in the injection cylinder 3 and fixedly connected with the piston 301, the second push rod 304 is inserted in the positioning cylinder 305.

[0043] The bottom of the injection cylinder 3 is provided with a thin tube 312, the pressurizing head 110 is slidingly arranged on the thin tube 312, the bottom of the injection cylinder 3 is further provided with an injection port 311 corresponding to the thin tube 312, when the horizontal plate 303 moves downward, the first push rod 302 will push the piston 301 to discharge the material from the thin tube 312, the second push rod 304 will push the annular fixed block 306 to move, driving the pressurizing head 110 to realize the pressurizing operation.

[0044] In the embodiment, when the upper fixed block 107, the upper connecting plate 108, the upper mold base 109 and the pressurizing head 110 move downward, the material in the material box 4 will be sucked into the injection cylinder 3 through the material conveying pipe 407, then the horizontal plate 303 is controlled to move, thereby driving the first push rod 302 and the second push rod 304 connected at the bottom of the horizontal plate 303 to move, the first push rod 302 will drive the piston 301 connected thereto to move downward, thereby extruding the powder material in the injection cylinder 3 to enter the injection port 311 and then be discharged from the thin tube 312, so that the powder material enters between the pressurizing head 110 and the pressurizing groove 2, at the same time, the second push rod 304 will be inserted in the positioning cylinder 305 and continuously move downward, when the piston 301 moves to the bottom of the injection cylinder 3, the second push rod 304 will push the annular fixed block 306 in the positioning cylinder 305 to move, thereby driving the pressurizing head 110 connected with the annular fixed block 306 to move downward, thereby realizing the pressurizing operation on the powder, when the pressurizing operation is completed, the upper fixed block 107 can be controlled to move again, thereby controlling the upper mold base 109 and the pressurizing head 110 to move downward again, thereby realizing the effect of secondary pressurizing and improving the overall pressurizing effect.

[0045] The positioning cylinder 305 is further slidingly connected with an annular hollow block 307, the annular hollow block 307 and the annular fixed block 306 are provided with a first elastic sheet 308 therebetween, the annular hollow block 307 and the top inner wall of the positioning cylinder 305 are provided with a second elastic sheet 309 therebetween.

[0046] When the second push rod 304 pushes the annular fixed block 306 to move downward, the first elastic sheet 308 and the second elastic sheet 309 are stretched and deformed, and when the second push rod 304 extends out of the positioning cylinder 305, the deformed first elastic sheet 308 and the second elastic sheet 309 are automatically reset, thereby driving the annular fixed block 306 and the pressing head 110 to reset, so that the pressing head 110 can tightly fit the upper die seat 109, facilitating repeated use. It should be noted that during the process of preliminarily controlling the downward movement of the upper fixed block 107, since the second push rod 304 does not abut against and push the annular fixed block 306, the pressing head 110 and the upper die seat 109 are in a fitted state at this time. Only after the subsequent powder material is filled, the pressing head 110 will move and achieve the pressing effect. The annular hollow block 307 can limit the second push rod 304, and at the same time, the annular hollow block 307 slides in the positioning cylinder 305, which can also limit the first elastic sheet 308 and the second elastic sheet 309, and is more convenient for subsequent use.

[0047] Embodiment three: refer to Figures 1-9 A precise 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 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. The material injection cylinder 3 is slidingly connected with a piston 301, and the positioning cylinder 305 is slidingly connected with an annular fixed block 306 fixedly connected with the pressing head 110.

[0048] Further comprising a bottom plate 1, the bottom plate 1 is provided with a lower fixed block 101, the lower fixed block 101 is arranged between the bottom plate 1 and the lower die seat 102, and the bottom plate 1, the lower fixed block 101 and the lower die seat 102 are fixedly connected. The bottom plate 1 is further provided with a guide support rod 103, the top of the guide support rod 103 is fixedly connected with a top plate 104, the top plate 104 is provided with a first air cylinder 105 and a second air cylinder 106, and the guide support rod 103 can make the upper fixed block 107 move more stably, facilitating use. The bottom plate 1, the lower fixed block 101 and the lower die seat 102 are in fastening connection, and the upper fixed block 107, the upper connecting plate 108 and the upper die seat 109 are in fastening connection.

[0049] The horizontal plate 303 is arranged at the output end of the first air cylinder 105, the upper fixed block 107 is slidingly arranged on the guide support rod 103, and the upper fixed block 107 is arranged at the output end of the second air cylinder 106.

[0050] In this embodiment, the movement of the upper fixed block 107 and piston 301 in the preceding embodiments one and two will be described more precisely. Specifically, at the start of operation, the second cylinder 106 is activated first, causing it to move the upper fixed block 107 at its output end downwards. During this process, the first cylinder 105 does not operate, and the distance between the horizontal plate 303 at its output end and the first cylinder 105 remains unchanged. That is, neither the first push rod 302 nor the second push rod 304 connected to the horizontal plate 303 will move. Meanwhile, the upper fixed block 107... When the fixed block 107 moves, it will also drive the injection cylinder 3 and the positioning cylinder 305 to move downward. Therefore, when the injection cylinder 3 moves downward, the position of the injection cylinder 3 relative to the piston 301 will change. That is, the space between the piston 301 and the bottom of the injection cylinder 3 will gradually increase. Under the action of negative pressure, the material will be drawn into the material box 4 through the material conveying pipe 407, so that it enters the space between the piston 301 and the bottom inner wall of the injection cylinder 3. The upper mold base 109 and the pressure head 110 stop after moving into the pressure groove 2.

[0051] Then, the first cylinder 105 is activated, causing it to move the horizontal plate 303 at the output end. As in Embodiment 2, the first push rod 302 and the second push rod 304 will respectively perform the injection and pressurization operations, thereby performing initial pressurization. Then, the second cylinder 106 is activated again to achieve the effect of secondary pressurization, thereby improving the pressurization molding effect.

[0052] The bottom of the top plate 104 is provided with a double-sided rack plate 402. Multiple stirring shafts 405 are rotatably connected inside the material box 4. A toggle block 406 is fixedly connected to the outer wall of each stirring shaft 405. A rotating shaft 404 is connected to one end of each stirring shaft 405 outside the material box 4. A gear 403 meshes with each other on the outer wall of the rotating shaft 404. The uppermost gear 403 meshes with the double-sided rack plate 402.

[0053] A limiting block 401 is fixedly connected to the outer wall of the material box 4. The limiting block 401 abuts against the bottom of the top plate 104. The material conveying pipe 407 enables the material box 4 to convey material into the injection cylinder 3. The material conveying pipe 407 is installed inside the upper fixed block 107, the upper connecting plate 108 and the upper mold base 109. Both the material conveying pipe 407 and the thin pipe 312 are equipped with one-way valves.

[0054] The limiting block 401 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, which can be used better. In addition, in this application, the material box 4 is movable, and the gear 403 on its outer wall will not interfere with other components.

[0055] In this embodiment, when the upper fixed block 107 moves downward, the uppermost gear 403 is engaged with the double-sided rack plate 402, driving the multiple gears 403 to rotate, and then the rotating shaft 404 drives the stirring shaft 405 to rotate, so that the stirring shaft 405 drives the stirring block 406 connected to the outer wall to rotate, realizing the stirring of the powder material, avoiding its accumulation, and better realizing the subsequent feeding operation, facilitating the subsequent use.

[0056] Moreover, the feeding pipe 407 and the thin pipe 312 are both provided with a one-way valve, so that the feeding pipe 407 only realizes the feeding operation into the feeding cylinder 3, the thin pipe 312 only realizes the discharging operation, and there is no interference between them.

[0057] Embodiment four: refer to Figures 1-9 A precise 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 an upper die seat 109 is further slidingly arranged on the bottom of the upper die seat 109. A pressing head 110 is arranged on the lower die seat 102 corresponding to the position of the pressing head 110, a feeding cylinder 3 and a positioning cylinder 305 are arranged on the upper die seat 109, the feeding cylinder 3 and the positioning cylinder 305 are both fixedly arranged on the upper die seat 109, the feeding cylinder 3 is slidingly connected with a piston 301, and the positioning cylinder 305 is slidingly connected with an annular fixed block 306 fixedly connected with the pressing head 110. The upper fixed block 107 is fixedly provided with a material box 4, and the bottom of the material box 4 is connected with the bottom of the feeding cylinder 3.

[0058] The lower die seat 102 is provided with a sliding groove 202, the pressing groove 2 is slidingly provided with a supporting plate 201, the sliding groove 202 is provided with an auxiliary plate 203, the two ends of the auxiliary plate 203 are provided with thin rods 204, the top of the thin rods 204 is arranged outside the lower die seat 102 and connected with a circular plate 205, and the middle position of the auxiliary plate 203 is connected with a connecting rod 207 between the bottom outer wall of the supporting plate 201.

[0059] The lower die seat 102 is provided with a circular hole 208 corresponding to the position of the circular plate 205, the inner wall of the circular hole 208 and the circular plate 205 are provided with a spring 206, 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 with a fixed rod 5, the bottom of the fixed rod 5 is provided with a pressing plate 501 corresponding to the position of the circular plate 205, the outer wall of the pressing plate 501 is provided with a pressure switch 502, one end of the feeding cylinder 3 arranged in the upper die seat 109 is provided with an electric heating ring 310, and the pressure switch 502 and the electric heating ring 310 are electrically connected.

[0060] In the application, the upper fixing block 107 moves downward, and the fixing rod 5 and the pressing plate 501 are also moved downward, the pressing plate 501 touches the round plate 205 and presses the round plate 205 to move downward, then the auxiliary plate 203 is driven by the thin rod 204 to move downward in the sliding groove 202, so that the connecting rod 207 drives the supporting plate 201 to move downward, the supporting plate 201 moves to the bottom of the pressing groove 2 and is attached to the inner wall of the bottom of the pressing groove 2, so that the subsequent pressing process is more stable, and after the pressing is completed, the upper fixing block 107 is reset, under the action of the spring 206, the round plate 205 drives the thin rod 204 to reset, so as to drive the auxiliary plate 203 to reset, and the supporting plate 201 is reset through the connecting rod 207, and in the process of resetting the supporting plate 201, the parts in the pressing groove 2 which have completed the pressing are pushed to move upward, so that they are moved out of the pressing groove 2, which is convenient for workers to take them out, further, when the pressing plate 501 contacts the round plate 205, the pressure switch 502 is squeezed, the pressure switch 502 drives the electric heating ring 310 electrically connected thereto to work, so as to heat the bottom position of the injection cylinder 3, when the powder material in the injection cylinder 3 is discharged, a certain preheating effect can be achieved, after the metal powder is heated, the atomic activity of the particle surface increases, the plasticity and fluidity of the powder are improved, when the powder is pressed, the powder particles are more likely to slip, rearrange and fill the small gap of the mold cavity, so that the density is improved and the internal defects are reduced.

[0061] The above is only the preferred embodiment of the application, but the protection scope of the application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the application within the technical range disclosed by the application, which should be covered in the protection scope of the application.

Claims

1. A precision positioning press for parts processing, comprising a lower mold base (102), characterized in that, Also includes: An upper fixing block (107) is slidably disposed above the lower mold base (102). The bottom of the upper fixing block (107) is provided with an upper connecting plate (108), and the bottom of the upper connecting plate (108) is provided with an upper mold base (109). The pressure head (110) is slidably disposed at the bottom of the upper mold base (109); A pressure groove (2) corresponding to the position of the pressure head (110) is provided on the lower mold base (102); The injection cylinder (3) and the positioning cylinder (305) are both fixedly mounted on the upper mold base (109). The injection cylinder (3) is slidably connected to a piston (301), and the positioning cylinder (305) is slidably connected to an annular fixing block (306) that is fixedly connected to the pressure head (110). The material box (4) is fixedly installed on the upper fixing block (107), and a material conveying pipe (407) is connected between the bottom of the material box (4) and the bottom of the injection cylinder (3). It also includes a horizontal plate (303), which is slidably disposed above the upper fixed block (107). The bottom of the horizontal plate (303) is fixedly connected to a first push rod (302) and a second push rod (304). The first push rod (302) is slidably connected in the injection cylinder (3) and fixedly connected to the piston (301). The second push rod (304) is inserted into the positioning cylinder (305). The bottom of the injection cylinder (3) is provided with a thin tube (312), and the pressure head (110) is slidably disposed on the thin tube (312). The bottom of the injection cylinder (3) is also provided with an injection port (311) corresponding to the thin tube (312). When the horizontal plate (303) moves downward, the first push rod (302) will push the piston (301) to discharge the material from the thin tube (312), and the second push rod (304) will push the annular fixed block (306) to move, thereby driving the pressure head (110) to perform a pressurization operation.

2. The precision positioning press for parts processing according to claim 1, characterized in that, The positioning cylinder (305) is also slidably connected to an annular hollow block (307), and a first spring piece (308) is provided between the annular hollow block (307) and the annular fixed block (306). A second spring piece (309) is provided between the annular hollow block (307) and the top inner wall of the positioning cylinder (305).

3. The precision positioning press for parts processing according to claim 1, characterized in that, It also includes a base plate (1), on which a lower fixing block (101) is provided. The lower fixing block (101) is located between the base plate (1) and the lower mold base (102). The base plate (1), the lower fixing block (101) and the lower mold base (102) are fixedly connected. The base plate (1) is also provided with a guide support rod (103). 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).

4. The precision positioning press for parts processing according to claim 3, characterized in that, The horizontal plate (303) is disposed at the output end of the first cylinder (105), the upper fixing block (107) is slidably disposed on the guide support rod (103), and the upper fixing block (107) is disposed at the output end of the second cylinder (106).

5. A precision positioning press for parts processing according to claim 3, characterized in that, The bottom of the top plate (104) is provided with a double-sided rack plate (402). Multiple stirring shafts (405) are rotatably connected inside the material box (4). A toggle block (406) is fixedly connected to the outer wall of each of the multiple stirring shafts (405). A rotating shaft (404) is connected to one end of each of the multiple stirring shafts (405) outside the material box (4). A gear (403) meshes with each other on the outer wall of each rotating shaft (404). The uppermost gear (403) meshes with the double-sided rack plate (402).

6. The precision positioning press for parts processing according to claim 5, characterized in that, A limiting block (401) is fixedly connected to the outer wall of the material box (4). The limiting block (401) abuts against the bottom of the top plate (104). The material conveying pipe (407) enables the material box (4) to convey material into the injection cylinder (3). The material conveying pipe (407) is located inside the upper fixed block (107), the upper connecting plate (108), and the upper mold base (109). Both the material conveying pipe (407) and the thin pipe (312) are equipped with one-way valves.

7. The precision positioning press for parts processing according to claim 1, characterized in that, The lower mold base (102) is provided with a sliding groove (202), and a support plate (201) is slidably arranged in the pressure groove (2). An auxiliary plate (203) is provided in the sliding groove (202). Thin rods (204) are provided at both ends of the auxiliary plate (203). The top of the thin rods (204) is placed outside the lower mold base (102) and connected to a circular plate (205). 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).

8. A precision positioning press for parts processing according to claim 7, characterized in that, The lower mold 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). The spring (206) is sleeved on the outer wall of the thin rod (204). A fixing rod (5) is fixedly connected to the bottom of the upper connecting plate (108). A pressure plate (501) corresponding to the position of the circular plate (205) is provided at the bottom of the fixing rod (5). A pressure switch (502) is provided on the outer wall of the pressure plate (501). An electric heating coil (310) is provided on the outer wall of one end of the injection cylinder (3) placed in the upper mold base (109). The pressure switch (502) is electrically connected to the electric heating coil (310).

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