Compression molding device for three-fork shaft workpiece

Abstract

The utility model discloses a three-fork shaft workpiece compression molding device which comprises a compression molding workbench, an upper die holder and a lower die holder, a compression molding power device is installed on the compression molding workbench and comprises a hydraulic lifting machine head, the upper die holder is fixedly connected to the bottom end of the hydraulic lifting machine head, and the lower die holder is fixedly installed under the upper die holder. The upper die base and the lower die base can form a die assembly effect, three side die mechanisms are installed on the periphery of the lower die base, a side extrusion male die is movably installed on each side die mechanism, and the side extrusion male dies can be inserted into the upper die base and the lower die base which are assembled in a matched mode. According to the three-fork-shaft forming die, the forming operation of three-fork-shaft workpieces is completed through the matched action of the upper die base, the lower die base and the side die mechanism, and the three-fork-shaft forming die has the advantage of being easy to operate, has the automatic demolding function after production, is high in production efficiency and can well meet the requirement for batch production of the three-fork-shaft workpieces.

Description

Technical Field

[0001] The utility model relates to the technical field of die pressing production equipment for special-shaped workpieces, in particular to a die pressing forming device for a trident shaft workpiece. Background Art

[0002] like Figure 5 The figure shows a special-shaped auto parts, which is characterized by an axis core 61 in the middle, and three fork heads 62 evenly connected around the axis core 61. In view of the appearance characteristics of the workpiece, the workpiece is named a three-pronged axis workpiece. Currently, the workpiece has a large production order volume. In view of the appearance characteristics of the workpiece, it is necessary to develop and design a special molding production equipment to complete the production task, and this case is born out of this. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a molding device for a trident shaft workpiece.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A molding device for a three-pronged shaft workpiece comprises a molding workbench, an upper mold base and a lower mold base, a molding power device is installed on the molding workbench, and the molding power device comprises a hydraulic lifting head, the upper mold base is fixedly connected to the bottom end of the hydraulic lifting head, the lower mold base is fixedly installed on the molding workbench, and the lower mold base is arranged directly below the upper mold base. The upper mold base can be driven down by the hydraulic lifting head to form a mold closing effect with the lower mold base, and three side mold mechanisms are installed on the periphery of the lower mold base. The three side mold mechanisms are evenly arranged around the lower mold base, and each of the side mold mechanisms is movably installed with a side extrusion punch, which can be inserted into the upper mold base and the lower mold base after the mold is closed.

[0006] An upper mold core is installed on the upper mold base, and an upper concave cavity is opened on the upper mold core; a lower mold core is installed on the lower mold base, and a lower concave cavity is opened on the lower mold core; after the upper mold base and the lower mold base are molded together, the upper concave cavity and the lower concave cavity can be assembled with each other; three side mold cavities are opened on the upper mold base and the lower mold base, and the side mold cavities are arranged one by one in the upper and lower mold bases, and the upper and lower side mold cavities form a group; after the upper mold base and the lower mold base are molded together, a group of side mold cavities can be assembled to form a accommodating space for a side extrusion punch, and the side mold cavities correspond to the connected upper concave cavity or the lower concave cavity respectively.

[0007] The upper mold core is evenly connected with a plurality of mold locating pins, and the lower mold core is evenly opened with a plurality of latch holes, and the mold locating pins and the latch holes are arranged in a one-to-one correspondence.

[0008] A demoulding assembly is installed on the upper mold base, and the demoulding assembly includes a demoulding ejector rod, a mold block and a demoulding push cylinder. The demoulding ejector rod is fixedly connected to the lower end surface of the mold block, and a driving rod is fixedly connected to the upper end surface of the mold block. The piston rod end of the demoulding push cylinder is connected to the driving rod. The lower end of the demoulding ejector rod extends to the top opening position of the upper concave cavity. A mold receiving hole is opened in the upper mold base, and the mold block can be correspondingly received in the mold receiving hole after ascending. A demoulding assembly with the same structure is also installed on the lower mold base, and the demoulding ejector rod on the lower mold base can be pushed into the lower concave cavity.

[0009] The side mold mechanism includes a side mold mounting frame, the side extrusion punch is transversely mounted on the side mold mounting frame, and a side mold top pressure push cylinder is installed on the side of the side mold mounting frame. The side mold top pressure push cylinder is installed corresponding to the position of the side extrusion punch.

[0010] The side mold mounting frame includes a guide column and a side mold seat, the guide column is upright and fixedly installed, the side mold seat is movably installed on the guide column, a second spring is sleeved on the outer side of the guide column, the second spring is installed at the lower position of the side mold seat, the side extrusion punch is transversely installed on the side mold seat, a spring pressure plate is fixedly connected to the outer wall of the side extrusion punch, the spring pressure plate is arranged on the inner side of the side mold seat, a first spring is installed in the side mold seat, the first spring is sleeved on the outer side of the side extrusion punch, one end of the first spring is connected to the spring pressure plate, and the other end is connected to the inner wall of the side mold seat.

[0011] A limiting nut is installed on the top of the guide column, and the limiting nut blocks the upward movement trajectory of the side mold base.

[0012] An extrusion limiter is installed inside the side mold seat, and the extrusion limiter is blocked on the movement trajectory of the spring pressure plate.

[0013] The beneficial effects of the utility model are as follows: the utility model completes the forming operation of the three-pronged shaft workpiece through the coordinated actions of the upper mold base, the lower mold base and the side mold mechanism. The utility model has the advantage of simple operation and has an automatic demoulding function after production. The utility model has high production efficiency and can well meet the mass production needs of the three-pronged shaft workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a side view of the utility model;

[0015] Figure 2 It is a structural cross-sectional view of the upper die base, the lower die base and the side die mechanism of the utility model;

[0016] Figure 3 It is a structural schematic diagram of the side mold mechanism of the utility model;

[0017] Figure 4It is a top view of the layout of the side mold mechanism of the utility model;

[0018] Figure 5 It is a structural schematic diagram of a trident shaft workpiece that can be produced by the utility model.

[0019] In the figure: a molding workbench 1, a molding power device 2, a hydraulic lift head 21, an upper mold base 3, an upper mold core 31, an upper concave cavity 311, a side mold cavity 312, a mold positioning pin 32, a demolding assembly 33, a demolding push rod 331, a mold block 332, a driving rod 333, a demolding push cylinder 334, a mold receiving hole 34, a lower mold base 4, a lower mold core 41, a lower concave cavity 411, a pin hole 42, a side mold mechanism 5, a side extrusion punch 51, a spring pressure plate 511, a first spring 512, a side mold mounting frame 52, a guide column 521, a limit nut 5211, a side mold base 522, an extrusion limit 5221, a second spring 523, a side mold top pressure push cylinder 53, a shaft core 61, and a fork head 62. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments. The descriptions of "left" and "right" in the present invention are all based on Figure 1 For reference direction:

[0021] like Figure 1 to Figure 4 As shown, a molding device for a trident shaft workpiece includes a molding workbench 1, an upper mold base 3 and a lower mold base 4. A molding power device 2 is installed on the molding workbench 1. The molding power device 2 includes a hydraulic lifting head 21. The upper mold base 3 is fixedly connected to the bottom end of the hydraulic lifting head 21. The upper mold base 3 can be lifted up and down with the hydraulic lifting head 21. The lower mold base 4 is fixedly installed on the molding workbench 1. The lower mold base 4 is arranged directly below the upper mold base 3. The upper mold base 3 can be driven down by the hydraulic lifting head 21 to form a mold closing effect with the lower mold base 4. Three side mold mechanisms 5 are installed on the periphery of the lower mold base 4. The three side mold mechanisms 5 are evenly arranged around the lower mold base 4. A side extrusion punch 51 is movably installed on each side mold mechanism 5. The side extrusion punch 51 can be inserted into the upper mold base 3 and the lower mold base 4 after the mold is closed. Figure 5 As shown, the appearance feature of the three-pronged shaft workpiece is that it has an axis core 61 in the middle, and three evenly distributed fork heads 62 are connected to the outer wall of the axis core 61. In the utility model, the installation position of the lower die seat 4 is fixed, and the processed raw material is placed on the lower die seat 4. The upper die seat 3 is driven by the hydraulic lifting head 21 to descend and form a clamping effect with the lower die seat 4. At the same time, the side extrusion punch 51 is inserted into the upper die seat 3 and the lower die seat 4 after the clamping, forming a lateral extrusion effect. The clamping extrusion of the upper die seat 3 and the lower die seat 4 can form the axis core 61, and the lateral extrusion of the side extrusion punch 51 can form the fork head 62. With the cooperation of the three, the three-pronged shaft workpiece can be smoothly formed.

[0022] like Figure 2 As shown, an upper mold core 31 is installed on the upper mold base 3, and an upper concave cavity 311 is opened on the upper mold core 31; a lower mold core 41 is installed on the lower mold base 4, and a lower concave cavity 411 is opened on the lower mold core 41; after the upper mold base 3 and the lower mold base 4 are molded together, the upper concave cavity 311 and the lower concave cavity 411 can be spliced ​​with each other; after the upper concave cavity 311 and the lower concave cavity 411 are spliced ​​together, a shaft core 61 molding space is formed; after the upper mold base 3 and the lower mold base 4 are molded together, the raw material is extruded into the shape of the shaft core 61 in the upper concave cavity 311 and the lower concave cavity 411; three side mold cavities 312 are opened on the upper mold base 3 and the lower mold base 4; the side mold cavities 312 are arranged one by one in the upper and lower directions, and the upper and lower side mold cavities 312 are a group; when the upper mold base 3 and the lower mold base 4 are molded together, the upper and lower side mold cavities 312 are arranged one by one in the upper and lower directions, and the upper and lower side mold cavities 312 are a group; After molding, a group of side mold cavities 312 can be assembled to form a accommodating space for a side extrusion punch 51. After the upper mold base 3 and the lower mold base 4 are molded, the three side extrusion punches 51 fall into the three groups of side mold cavities 312 respectively. The side extrusion punches 51 can move in the side mold cavities 312. Since the side mold cavities 312 are respectively connected to the upper concave cavity 311 or the lower concave cavity 411, after the upper mold base 3 and the lower mold base 4 are molded, the raw material will be squeezed to flow to the positions of the three side mold cavities 312. Since there are side extrusion punches 51 in the side mold cavities 312, under the effect of the inserted side top of the side extrusion punch 51, a lateral extrusion effect can be formed on the raw material in the side mold cavity 312, and this lateral extrusion effect can form a fork head 62.

[0023] like Figure 2 As shown, a plurality of mold locating pins 32 are evenly connected to the upper mold core 31, and a plurality of latch holes 42 are evenly opened on the lower mold core 41. The mold locating pins 32 and the latch holes 42 are arranged in a one-to-one correspondence. After the upper mold base 3 and the lower mold base 4 are molded, the mold locating pins 32 can be inserted into the latch holes 42 one by one. The design of the mold locating pins 32 and the latch holes 42 is to ensure that the upper mold core 31 and the lower mold core 41 can be accurately connected, so that the upper concave cavity 311 and the lower concave cavity 411 can be accurately assembled into a whole, thereby ensuring the molding quality of the workpiece.

[0024] like Figure 2As shown, a demoulding assembly 33 is installed on the upper mold base 3, and the demoulding assembly 33 includes a demoulding ejector rod 331, a mold body block 332 and a demoulding push cylinder 334. The demoulding ejector rod 331 is fixedly connected to the lower end surface of the mold body block 332, and a driving rod 333 is fixedly connected to the upper end surface of the mold body block 332. The piston rod end of the demoulding push cylinder 334 is connected to the driving rod 333. When the piston rod of the demoulding push cylinder 334 is extended or retracted, the mold body block 332 and the demoulding ejector rod 331 can be driven by the driving rod 333. A through hole is opened on the top of the upper cavity 311 to facilitate the demoulding ejector rod 3 The mold ejector rod 331 is inserted into the mold base 311 through movement, and the lower end of the mold ejector rod 331 extends to the top opening position of the upper cavity 311. When the piston rod of the mold ejector cylinder 334 is extended, the mold ejector rod 331 can be extended downward and inserted into the upper cavity 311. Under the downward push force of the mold ejector rod 331, the molded workpiece can be separated from the upper cavity 311. When the piston rod of the mold ejector cylinder 334 is retracted, the mold ejector rod 331 can move upward to block the top through hole of the upper cavity 311 so as not to affect the molding operation of the workpiece (to prevent the raw material from being squeezed out of the through hole). A mold body receiving hole 34 is provided in the upper mold base 3. After the mold block 332 moves upward, it can be correspondingly received in the mold body receiving hole 34. The mold body receiving hole 34 actually serves as an upward limit for the demoulding ejector pin 331. When the mold body block 332 is completely received in the mold body receiving hole 34, the bottom end of the demoulding ejector pin 331 just blocks the top through hole of the upper cavity 311. The lower mold base 4 is also equipped with a demoulding component 33 of the same structure. The lower cavity 411 is provided with a through hole at the bottom. The demoulding ejector pin 331 on the lower mold base 4 can be pushed into the lower cavity 411 through the hole. The demoulding ejector pin 331 can form an upward push effect, so that the workpiece after molding is The workpiece is separated from the lower concave cavity 411. After the demolding ejector pin 331 moves downward, it can block the through hole at the bottom of the lower concave cavity 411, so it will not affect the molding operation of the workpiece. The insertion movement of the two demolding ejector pins 331 occurs when the upper mold base 3 and the lower mold base 4 are in the mold opening operation. At this time, the three-pronged axis workpiece has been formed. The above design enables the utility model to have an automatic demolding function, which is convenient for workers to quickly remove the molded workpiece after the upper mold base 3 and the lower mold base 4 are in the mold opening operation. This function makes the operation of the device very simple. Workers only need to complete the placement of the raw material rods and the removal of the molded workpiece.

[0025] like Figure 3 and Figure 4 As shown, the side mold mechanism 5 includes a side mold mounting frame 52, and the side extrusion punch 51 is horizontally installed on the side mold mounting frame 52. A side mold top pressure push cylinder 53 is installed on the side of the side mold mounting frame 52. The side mold top pressure push cylinder 53 is installed corresponding to the position of the side extrusion punch 51. The side mold top pressure push cylinder 53 is installed on the outer side of the side mold mounting frame 52. Under the pushing action of the side mold top pressure push cylinder 53, the side extrusion punch 51 can move toward the center position direction of the upper mold base 3 and the lower mold base 4, that is, it moves toward the center position direction of the upper concave cavity 311 and the lower concave cavity 411, to form an extrusion effect.

[0026] like Figure 3 and Figure 4 As shown, the side mold mounting frame 52 includes a guide column 521 and a side mold seat 522. The guide column 521 is vertically fixedly installed, and the side mold seat 522 is movably installed on the guide column 521. The guide column 521 plays a role in guiding the movement of the side mold seat 522, so that the side mold seat 522 can only move vertically up and down. A second spring 523 is sleeved on the outer side of the guide column 521. The second spring 523 is installed at a position below the side mold seat 522. The second spring 523 plays a role in elastic support of the side mold seat 522. Under the elastic force of the second spring 523, the side mold seat 522 can be pushed upward, and the side extrusion punch 51 is horizontally installed on the side mold seat 522. The side mold seat 52 2 plays the role of a mounting frame for the side extrusion punch 51. The side extrusion punch 51 can be lifted up and down along with the side die seat 522. A spring pressure plate 511 is fixedly connected to the outer wall of the side extrusion punch 51. The spring pressure plate 511 is arranged on the inner side of the side die seat 522. A first spring 512 is installed in the side die seat 522. The first spring 512 is sleeved on the outer side of the side extrusion punch 51. One end of the first spring 512 is connected to the spring pressure plate 511, and the other end is connected to the inner wall of the side die seat 522. Under the elastic force of the first spring 512, the side extrusion punch 51 can move toward the side die top pressing cylinder 53, and this movement can separate the side extrusion punch 51 from the fork head 62 of the formed workpiece.

[0027] like Figure 3 As shown, a limiting nut 5211 is installed on the top of the guide column 521, and the limiting nut 5211 blocks the upward movement trajectory of the side mold seat 522. When only the elastic force of the second spring 523 exists, the side mold seat 522 can be pushed upward until it is blocked by the limiting nut 5211. At this position, the side extrusion punch 51 installed on the side mold seat 522 is separated from the lower mold seat 4 so as not to affect the placement of the raw material rod and the removal of the formed workpiece. During the downward movement of the upper mold seat 3, the side extrusion punch 51 will be touched and driven by the downward pressure. At this time, the side extrusion punch 51 will descend with the upper mold seat 3, and the second spring 523 will be compressed. After the upper mold seat 3 and the lower mold seat 4 are closed, the side extrusion punch 51 will fall into the space formed by a group of side mold cavities 312.

[0028] like Figure 3 As shown, an extrusion limit 5221 is installed inside the side die seat 522, and the extrusion limit 5221 blocks the movement trajectory of the spring pressure plate 511. During the side extrusion operation, the piston rod of the side die pressing cylinder 53 extends to push the side extrusion punch 51 toward the center position of the upper die seat 3 and the lower die seat 4, and the spring pressure plate 511 moves with the side extrusion punch 51 until it touches the extrusion limit 5221. At this time, the side extrusion punch 51 can no longer be extruded inward to form a fork head 62 of a set size (the insertion extrusion depth of the side extrusion punch 51 determines the size of the forming fork head 62).

[0029] The operation steps of the utility model are as follows: 1. Place the raw material rod in the lower concave cavity 411 of the lower die seat 4; 2. Start the hydraulic lift head 21 to make the upper die seat 3 move downward, forming the mold closing effect of the upper die seat 3 and the lower die seat 4, and keep the pressure still; 3. Synchronously start the side die top pressure push cylinders 53 of the three side die mechanisms 5, and synchronously push the three side extrusion punches 51 to insert and extrude; 4. After keeping the pressure for a period of time, start the hydraulic lift head 21 to move upward to separate the upper die seat 3 and the lower die seat 4, and start the demolding component 33 during the separation process to form the demolding effect of the workpiece; 5. Take out the workpiece, clean the concave cavity, and place the raw material rod again. The above process is cyclically operated to continuously produce the three-pronged shaft workpiece. The utility model has the advantages of simple operation, low labor intensity of workers, and high production efficiency, and can well meet the mass production needs of the three-pronged shaft workpiece.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A molding device for a trident shaft workpiece, comprising a molding workbench (1), an upper die base (3) and a lower die base (4), characterized in that: A molding power device (2) is installed on the molding workbench (1), and the molding power device (2) includes a hydraulic lifting head (21). The upper mold base (3) is fixedly connected to the bottom end of the hydraulic lifting head (21). The lower mold base (4) is fixedly installed on the molding workbench (1). The lower mold base (4) is arranged directly below the upper mold base (3). The upper mold base (3) can be driven down by the hydraulic lifting head (21) to form a mold closing effect with the lower mold base (4). Three side mold mechanisms (5) are installed on the periphery of the lower mold base (4). The three side mold mechanisms (5) are evenly arranged around the lower mold base (4). Each of the side mold mechanisms (5) is movably installed with a side extrusion punch (51), and the side extrusion punch (51) can be inserted into the upper mold base (3) and the lower mold base (4) after the mold closing.

2. A molding device for a trident shaft workpiece according to claim 1, characterized in that: An upper mold core (31) is mounted on the upper mold base (3), an upper concave cavity (311) is formed on the upper mold core (31), a lower mold core (41) is mounted on the lower mold base (4), a lower concave cavity (411) is formed on the lower mold core (41), and after the upper mold base (3) and the lower mold base (4) are molded together, the upper concave cavity (311) and the lower concave cavity (411) can be assembled with each other, and both the upper mold base (3) and the lower mold base (4) are formed. Three side mold cavities (312) are provided, and the side mold cavities (312) are arranged one by one in an upper and a lower manner, and the upper and lower side mold cavities (312) form a group. After the upper mold base (3) and the lower mold base (4) are molded together, a group of side mold cavities (312) can be assembled to form a accommodating space for a side extrusion punch (51), and the side mold cavities (312) are respectively connected to the upper concave cavity (311) or the lower concave cavity (411).

3. A molding device for a trident shaft workpiece as claimed in claim 2, characterized in that: The upper mold core (31) is evenly connected with a plurality of mold locating pins (32), and the lower mold core (41) is evenly provided with a plurality of pin holes (42), and the mold locating pins (32) and the pin holes (42) are arranged in a one-to-one correspondence.

4. A molding device for a trident shaft workpiece as claimed in claim 2, characterized in that: A demoulding assembly (33) is mounted on the upper mold base (3), and the demoulding assembly (33) comprises a demoulding ejector rod (331), a mold block (332) and a demoulding push cylinder (334), wherein the demoulding ejector rod (331) is fixedly connected to the lower end surface of the mold block (332), a driving rod (333) is fixedly connected to the upper end surface of the mold block (332), and a piston rod end of the demoulding push cylinder (334) is connected to the driving rod (333). The lower end of the demoulding ejector pin (331) extends to the top opening position of the upper concave cavity (311), a mold body receiving hole (34) is provided in the upper mold base (3), and the mold body block (332) can be correspondingly received in the mold body receiving hole (34) after ascending, and a demoulding assembly (33) of the same structure is also installed on the lower mold base (4), and the demoulding ejector pin (331) on the lower mold base (4) can be pushed into the lower concave cavity (411).

5. The molding device for a trident shaft workpiece according to claim 1, characterized in that: The side mold mechanism (5) comprises a side mold mounting frame (52), the side extrusion convex mold (51) is transversely mounted on the side mold mounting frame (52), a side mold top pressure push cylinder (53) is mounted on the side of the side mold mounting frame (52), and the side mold top pressure push cylinder (53) is installed corresponding to the position of the side extrusion convex mold (51).

6. A molding device for a trident shaft workpiece as claimed in claim 5, characterized in that: The side mold mounting frame (52) comprises a guide column (521) and a side mold seat (522); the guide column (521) is vertically fixedly installed; the side mold seat (522) is movably mounted on the guide column (521); a second spring (523) is sleeved on the outer side of the guide column (521); the second spring (523) is installed below the side mold seat (522); the side extrusion punch (51) is transversely mounted on the side mold seat (522); a spring pressure plate (511) is fixedly connected to the outer wall of the side extrusion punch (51); the spring pressure plate (511) is arranged on the inner side of the side mold seat (522); a first spring (512) is installed in the side mold seat (522); the first spring (512) is sleeved on the outer side of the side extrusion punch (51); one end of the first spring (512) is connected to the spring pressure plate (511) and the other end is connected to the inner wall of the side mold seat (522).

7. A molding device for a trident shaft workpiece according to claim 6, characterized in that: A limiting nut (5211) is installed on the top of the guide column (521), and the limiting nut (5211) blocks the upward movement trajectory of the side mold base (522).

8. A molding device for a trident shaft workpiece as claimed in claim 6, characterized in that: An extrusion limiter (5221) is installed inside the side mold base (522), and the extrusion limiter (5221) blocks the movement trajectory of the spring pressure plate (511).

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