A quick die changing device for powder metallurgy dies

Abstract

The utility model relates to powder metallurgy mould technical field proposes a kind of quick die changing device of powder metallurgy mould, including fixed frame;The top of lower mounting seat is provided with lower mould, the bottom of upper mounting seat is provided with upper mould;Clamping slot being opened in the upper mounting seat and lower mounting seat, one end of the lower mould and upper mould is fixedly connected with clamping plate, the side of the clamping plate is provided with positioning hole, and the electric push rod output end extends to the inside of reserved slot and is fixedly connected with positioning rod;Through the sliding clamping of the clamping plate and clamping slot inside being set, the quick sliding disassembly of lower mould and upper mould is realized, and the clamping locking of lower mould and upper mould is facilitated using electric push rod and positioning rod, simultaneously during die changing, using push assembly facilitates pushing clamping plate, and then the semi-automatic die changing action of lower mould and upper mould can be realized, improve corresponding die changing efficiency and reduce the labor intensity of staff.

Description

Technical Field

[0001] This utility model relates to the field of powder metallurgy mold technology, and specifically to a quick mold changing device for powder metallurgy molds. Background Technology

[0002] Powder metallurgy molds are precision tools used in powder metallurgy processes to press metal powders into the required shapes and sizes. They are core components in the powder metallurgy production process, directly determining the shape, dimensional accuracy, density distribution, and surface quality of the green blank. However, most existing powder metallurgy molds are fixed by multiple bolts, resulting in low assembly and disassembly efficiency. Therefore, some mold-changing devices are used to improve the efficiency of assembly and disassembly.

[0003] A search revealed an existing patent (publication number: CN222696021U) that discloses a quick-release ceramic powder metallurgy mold, comprising a base, a support rod, a top plate, a hydraulic cylinder, a lower mold, an upper mold, and a connecting mechanism. The support rod is fixedly connected to the top four corners of the base, the top plate is fixedly connected to the top of the support rod, and the hydraulic cylinder is fixedly connected to the top center of the top plate. When replacing the mold, pulling the pull plate moves the pull rod, causing the moving plate to move and the locking block to move out of the slot, releasing the mold from its fixation and allowing for disassembly. A new mold is then installed by inserting the connecting block into the connecting groove and pressing the locking block to retract it. When the locking block aligns with the slot, it is fully inserted, completing the installation. This design makes mold replacement faster, easier to install and remove, saves time and effort, and improves replacement efficiency.

[0004] However, in the above solution, it is necessary to pull the pull plate with both hands to release the fixation. After the staff pulls with both hands, another staff member is needed to cooperate in the mold disassembly. Especially when operating the upper mold, one staff member must hold the upper mold first. Otherwise, when the fixation is released directly, the upper mold may fall directly due to gravity. Therefore, the operation of two people will make the whole replacement process more complicated. In addition, when there is a small space constraint, it is also difficult for two people to cooperate in disassembly and assembly.

[0005] In view of this, the present invention proposes a quick mold changing device for powder metallurgy molds. Utility Model Content

[0006] This invention proposes a quick mold changing device for powder metallurgy molds, which solves the problem that the mold changing is not simple and convenient in related technologies.

[0007] The technical solution of this utility model is as follows: A quick mold changing device for powder metallurgy molds includes a fixed frame; a fixed plate fixedly connected to one side of the inner wall of the fixed frame, a controller fixedly connected to one side of the fixed plate, a lower mounting seat fixedly connected to the inner bottom wall of the fixed frame, a lower mold provided at the top of the lower mounting seat, an upper mounting seat fixedly connected to the inner top wall of the fixed frame via a linkage rod, and an upper mold provided at the bottom of the upper mounting seat; slots formed on the upper and lower mounting seats, a locking plate fixedly connected to one end of the lower and upper molds, a positioning hole formed on one side of the locking plate, a reserved groove formed inside the upper and lower mounting seats on one side of the slots, an electric push rod fixedly connected to one side of the upper and lower mounting seats, the output end of the electric push rod extending into the interior of the reserved groove and fixedly connected to a positioning rod; and a pushing assembly assembled inside the slots, the pushing assembly being used to push and disassemble the locking plate.

[0008] Preferably, the card plate and the card slot form a sliding engagement structure, and the card plate and the card slot are convex in shape.

[0009] Preferably, one end of the positioning rod engages with the inside of the positioning hole, and the length of the positioning rod is less than the depth of the reserved groove.

[0010] Preferably, the pushing assembly includes: a fixing groove formed in the inner wall of the slot, a threaded rod rotatably connected to the inner wall of the fixing groove, a threaded block threadedly connected to the surface of the threaded rod, a sliding plate fixedly connected to one side of the threaded block, and a pressure sensor disposed at the middle position of both ends of the sliding plate; a mounting mechanism mounted on the sliding plate, the mounting mechanism being used to realize the disassembly and maintenance of the pressure sensor; and a servo motor fixedly connected to one side of the back of the upper mounting base and the lower mounting base, the output end of the servo motor being fixedly connected to one end of the threaded rod through a coupling.

[0011] Preferably, a slider is fixedly connected to one end of the sliding plate, and a groove is provided on the other side of the inner wall of the slot to slide and cooperate with the slider.

[0012] Preferably, the installation mechanism includes: limiting grooves symmetrically formed at both ends of the sliding plate, a limiting block that engages with the inside of the limiting groove is fixedly connected to one end of the pressure sensor, and a pulling plate is fixedly connected to the top of the limiting block.

[0013] Preferably, magnetic suction holes are symmetrically provided at the top of the sliding plates on both sides of the limiting groove, and magnetic suction blocks that magnetically engage with the magnetic suction holes are fixedly connected to both sides of the bottom end of the pulling plate.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. In this utility model, the sliding engagement of the card plate and the inside of the card slot, and the use of a pressure sensor, can ensure the complete engagement of the card plate and the inside of the card slot, which facilitates the precise and timely engagement of the subsequent positioning rod with the inside of the positioning hole. At the same time, during subsequent mold changing, the pushing component can be used to make the card plate slide, which makes it easier for the staff to slide and disassemble the lower mold and the upper mold, thereby realizing the rapid mold changing action of the lower mold and the upper mold. Moreover, the entire mold changing only requires one person to operate, and the mold changing process is semi-automatic, which greatly improves the overall mold changing efficiency.

[0016] 2. In this utility model, the sliding engagement of the limiting block and the limiting groove, and the magnetic engagement of the magnetic block and the magnetic hole are used to realize the quick assembly and disassembly of the pressure sensor and the sliding plate, which facilitates the disassembly, maintenance or replacement of the pressure sensor and improves its practicality. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a front view structural diagram of the present utility model;

[0019] Figure 2 This is a bottom view of the structure of this utility model;

[0020] Figure 3 This is a partial exploded cross-sectional view of the lower mold and lower mounting base of this utility model;

[0021] Figure 4 This is a partial exploded cross-sectional view of the lower mounting base of this utility model.

[0022] Figure 5 This is a partial exploded cross-sectional view of the installation mechanism of this utility model.

[0023] In the diagram: 1. Fixed frame; 2. Upper mounting base; 3. Fixed plate; 4. Lower mold; 5. Lower mounting base; 6. Electric push rod; 7. Upper mold; 8. Clamping plate; 9. Controller; 10. Clamping slot; 11. Positioning rod; 12. Positioning hole; 13. Pushing assembly; 1301. Slider; 1302. Slide groove; 1303. Fixed groove; 1304. Threaded rod; 1305. Threaded block; 1306. Servo motor; 1307. Pressure sensor; 1308. Mounting mechanism; 13081. Magnetic suction hole; 13082. Limiting groove; 13083. Limiting block; 13084. Magnetic suction block; 13085. Pulling plate; 1309. Sliding plate; 14. Reserved groove. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] Example 1

[0026] A preferred embodiment of the quick mold changing device for powder metallurgy molds provided by this utility model is, for example... Figures 1 to 5 As shown: A quick mold changing device for powder metallurgy molds includes a fixed frame 1; a fixed plate 3 fixedly connected to one side of the inner wall of the fixed frame 1, a controller 9 fixedly connected to one side of the fixed plate 3, a lower mounting seat 5 fixedly connected to the inner bottom wall of the fixed frame 1, a lower mold 4 provided at the top of the lower mounting seat 5, an upper mounting seat 2 fixedly connected to the inner top wall of the fixed frame 1 via a linkage rod, an upper mold 7 provided at the bottom of the upper mounting seat 2; a slot 10 opened on the upper mounting seat 2 and the lower mounting seat 5, a clamping plate 8 fixedly connected to one end of the lower mold 4 and the upper mold 7, a positioning hole 12 opened on one side of the clamping plate 8, a reserved groove 14 opened inside the upper mounting seat 2 and the lower mounting seat 5 on one side of the slot 10, an electric push rod 6 fixedly connected to one side of the upper mounting seat 2 and the lower mounting seat 5, the output end of the electric push rod 6 extending into the interior of the reserved groove 14 and fixedly connected to a positioning rod 11; and a pushing assembly 13 assembled inside the slot 10, the pushing assembly 13 being used to push and disassemble the clamping plate 8.

[0027] In a further preferred embodiment of the present invention, the card plate 8 and the card slot 10 form a sliding engagement structure, and the card plate 8 and the card slot 10 are convex in shape.

[0028] In this embodiment, the sliding engagement between the convex retaining plate 8 and the slot 10 improves the stability of the sliding installation between the lower mold 4 and the upper mold 7 and the lower mounting base 5 and the upper mounting base 2, respectively.

[0029] In a further preferred embodiment of the present invention, one end of the positioning rod 11 engages with the interior of the positioning hole 12, and the length of the positioning rod 11 is less than the depth of the reserved groove 14.

[0030] In this embodiment, the electric push rod 6 is operated so that the positioning rod 11 can slide into the positioning hole 12, thereby achieving the clamping and fixing of the card plate 8 and the card slot 10.

[0031] Example 2

[0032] Based on Example 1, a preferred embodiment of the quick mold changing device for powder metallurgy molds provided by this utility model is as follows: Figures 1 to 5As shown: The pushing assembly 13 includes: a fixing groove 1303 formed in the inner wall of the slot 10, a threaded rod 1304 rotatably connected to the inner wall of the fixing groove 1303, a threaded block 1305 threadedly connected to the surface of the threaded rod 1304, a sliding plate 1309 fixedly connected to one side of the threaded block 1305, and a pressure sensor 1307 disposed at the middle position of both ends of the sliding plate 1309; a mounting mechanism 1308 mounted on the sliding plate 1309, the mounting mechanism 1308 being used to realize the disassembly and maintenance of the pressure sensor 1307; and a servo motor 1306 fixedly connected to one side of the back of the upper mounting base 2 and the lower mounting base 5, the output end of the servo motor 1306 being fixedly connected to one end of the threaded rod 1304 through a coupling.

[0033] In this embodiment, by starting the servo motor 1306 to drive the threaded rod 1304 to rotate, the threaded block 1305 slides and drives the sliding plate 1309 to slide, thereby pushing the card plate 8 to the outside of the card slot 10, so that most of the lower mold 4 and the upper mold 7 are separated from the lower mounting base 5 and the upper mounting base 2, thus making it easier for the staff to disassemble the lower mold 4 and the upper mold 7.

[0034] In a further preferred embodiment of the present invention, a slider 1301 is fixedly connected to one end of the sliding plate 1309, and a groove 1302 that slides and engages with the slider 1301 is provided on the other side of the inner wall of the slot 10.

[0035] In this embodiment, the sliding stability of the sliding plate 1309 is improved by utilizing the sliding of the slider 1301 and the sliding groove 1302.

[0036] In a further preferred embodiment of the present invention, the installation mechanism 1308 includes: limiting grooves 13082 symmetrically opened at both ends of the sliding plate 1309; a limiting block 13083 that engages with the inside of the limiting groove 13082 is fixedly connected to one end of the pressure sensor 1307; and a pulling plate 13085 is fixedly connected to the top end of the limiting block 13083.

[0037] In this embodiment, the pressure sensor 1307 is slidably installed and removed by utilizing the sliding engagement of the limiting block 13083 and the limiting groove 13082.

[0038] In a further preferred embodiment of the present invention, magnetic suction holes 13081 are symmetrically provided at the top of the sliding plates 1309 on both sides of the limiting groove 13082, and magnetic suction blocks 13084 that magnetically engage with the magnetic suction holes 13081 are fixedly connected to the bottom sides of the pull plate 13085.

[0039] In this embodiment, the magnetic attraction between the magnetic block 13084 and the magnetic hole 13081 is used to further improve the firmness and stability of the sliding installation of the pressure sensor 1307.

[0040] The working principle of this utility model is as follows: The operator slides the card plate 8 into the card slot 10. When one end of the card plate 8 contacts the pressure sensor 1307 and the pressure sensor 1307 detects that the pressure has reached the predetermined value, the card plate 8 is driven to fully engage with the fixing frame 1. At this time, the controller 9 starts the electric push rod 6 to make the positioning rod 11 engage with the positioning hole 12, thereby automatically realizing the clamping and fixing of the card plate 8 and the card slot 10, and realizing the installation and fixing of the lower mold 4 and the upper mold 7.

[0041] When it is necessary to disassemble and replace the lower mold 4 and the upper mold 7, the electric push rod 6 can be activated by the controller 9 to slide the positioning rod 11 completely out of the positioning hole 12. Then, the servo motor 1306 is activated to drive the threaded rod 1304 to rotate. Utilizing the threaded engagement between the threaded rod 1304 and the threaded block 1305, the threaded block 1305 slides, causing the sliding plate 1309 to slide. This pushes the clamping plate 8 outward from the clamping slot 10, causing the lower mold 4 and the upper mold 7 to largely disengage from the lower mounting base 5 and the upper mounting base 2, making it easier for workers to disassemble the lower mold. Disassemble mold 4 and upper mold 7, then restart servo motor 1306 to slide sliding plate 1309 into slot 10, and use another pressure sensor 1307 to detect the pressure against the inner wall of slot 10. When the predetermined value is reached, servo motor 1306 can be turned off. This avoids servo motor 1306 from working continuously and causing sliding plate 1309 to move excessively, and also avoids sliding plate 1309 not sliding excessively and affecting the integrity of subsequent sliding installation of slot 8. This facilitates the next sliding installation of lower mold 4 and upper mold 7, and realizes rapid mold change of lower mold 4 and upper mold 7.

[0042] At the same time, the pull plate 13085 can be pulled forcefully to make the limiting block 13083 slide completely away from the limiting groove 13082, so that the pressure sensor 1307 can be disassembled for maintenance or replacement. During installation, the limiting block 13083 is slid into the limiting groove 13082 and the magnetic block 13084 is locked into the magnetic hole 13081. The magnetic engagement of the two improves the firmness and stability of the sliding installation of the pressure sensor 1307.

[0043] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described above, and the electrical connection should be completed by referring to the working sequence of each electrical component. The detailed connection methods are well-known technologies in the field. The above mainly introduces the working principle and process, and will not describe the electrical control.

[0044] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A quick mold changing device for powder metallurgy molds, characterized in that, include: Fixture (1); A fixing plate (3) is fixedly connected to one side of the inner wall of the fixing frame (1). A controller (9) is fixedly connected to one side of the fixing plate (3). A lower mounting seat (5) is fixedly connected to the inner bottom wall of the fixing frame (1). A lower mold (4) is provided at the top of the lower mounting seat (5). An upper mounting seat (2) is fixedly connected to the inner top wall of the fixing frame (1) through a linkage rod. An upper mold (7) is provided at the bottom of the upper mounting seat (2). A slot (10) is formed on the upper mounting base (2) and the lower mounting base (5). A card plate (8) is fixedly connected to one end of the lower mold (4) and the upper mold (7). A positioning hole (12) is formed on one side of the card plate (8). A reserved slot (14) is formed inside the upper mounting base (2) and the lower mounting base (5) on one side of the slot (10). An electric push rod (6) is fixedly connected to one side of the upper mounting base (2) and the lower mounting base (5). The output end of the electric push rod (6) extends into the interior of the reserved slot (14) and is fixedly connected to a positioning rod (11). A push assembly (13) is installed inside the slot (10) to push and disassemble the card plate (8).

2. The quick mold changing device for powder metallurgy molds according to claim 1, characterized in that, The card plate (8) and the card slot (10) form a sliding engagement structure, and the card plate (8) and the card slot (10) are convex in shape.

3. The quick mold changing device for powder metallurgy molds according to claim 1, characterized in that, One end of the positioning rod (11) engages with the inside of the positioning hole (12), and the length of the positioning rod (11) is less than the depth inside the reserved groove (14).

4. The quick mold changing device for powder metallurgy molds according to claim 1, characterized in that, The actuating component (13) includes: A fixing groove (1303) is formed in the inner wall of the card slot (10). A threaded rod (1304) is rotatably connected to the inner wall of the fixing groove (1303). A threaded block (1305) is threadedly connected to the surface of the threaded rod (1304). A sliding plate (1309) is fixedly connected to one side of the threaded block (1305). A pressure sensor (1307) is provided at the middle position of both ends of the sliding plate (1309). The mounting mechanism (1308) is mounted on the sliding plate (1309) and is used to disassemble and maintain the pressure sensor (1307). A servo motor (1306) is fixedly connected to one side of the back of the upper mounting base (2) and the lower mounting base (5). The output end of the servo motor (1306) is fixedly connected to one end of the threaded rod (1304) through a coupling.

5. A quick mold changing device for powder metallurgy molds according to claim 4, characterized in that, One end of the sliding plate (1309) is fixedly connected to a slider (1301), and the other side of the inner wall of the slot (10) is provided with a sliding groove (1302) that slides and engages with the slider (1301).

6. A quick mold changing device for powder metallurgy molds according to claim 4, characterized in that, The installation mechanism (1308) includes: A limiting groove (13082) is symmetrically opened at both ends of the sliding plate (1309). One end of the pressure sensor (1307) is fixedly connected to a limiting block (13083) that engages with the inside of the limiting groove (13082). A pulling plate (13085) is fixedly connected to the top of the limiting block (13083).

7. A quick mold changing device for powder metallurgy molds according to claim 6, characterized in that, The sliding plates (1309) on both sides of the limiting groove (13082) are symmetrically provided with magnetic suction holes (13081) at their top ends, and magnetic suction blocks (13084) that magnetically engage with the magnetic suction holes (13081) are fixedly connected to both sides of the bottom end of the pull plate (13085).

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