Double-station alternate forging die, forging method and pull rod

Abstract

The invention relates to a double-station alternating type forging die, a forging method and a pull rod. The double-station alternating type forging die comprises a top seat and a bottom seat which are oppositely arranged in the first direction, the bottom seat can be close to or away from the top seat through a hydraulic part, two sets of lower dies are movably arranged on the bottom seat, and two sets of upper dies opposite to the lower dies are movably arranged on the top seat; a displacement drive unit; the rotating part is used for driving the lower mold to rotate by 360 degrees in the rotating direction; a recycling box filled with agent liquid is arranged at the bottom of the base, the recycling box is provided with an agent liquid flowing part, and a liquid outlet structure is arranged on the lower mold. By means of the forging device, forging blanks can be forged at one station, meanwhile, the other station can conduct the procedures of feeding, release agent injection and discharging on the lower die, and the working efficiency is greatly improved. And after the blank on the lower die is forged, the residual release agent in the lower die can flow back into the recycling box again, the release agent is reused, and resources are saved.

Description

Technical Field

[0001] The invention relates to the technical field of forging dies, and in particular to a double-station alternating forging die, a forging method and a pull rod. Background Art

[0002] A tie rod is a slender metal rod used to transmit force and motion. It usually plays a connecting and supporting role in mechanical devices. The tie rod needs to be forged through a forging die during processing.

[0003] In order to smoothly remove the tie rod from the die after the forging is completed in the forging die, it is generally necessary to spray the die with a release agent (an interface coating between the die and the finished forging, which can make the surface of the object easy to detach, smooth and clean) before forging each time.

[0004] In the prior art, in the tie rod forging process, generally, a release agent needs to be injected into the mold before forging and then the material is loaded, and the forging is unloaded after the forging is completed. In this process, on the one hand, the remaining release agent will flow out when unloading, resulting in a waste of the release agent. On the other hand, the steps of loading, coating and unloading need to be performed in batches before and after forging, which wastes working time and affects the overall work efficiency. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a double-station alternating forging die, a forging method and a draw rod. The specific technical scheme is as follows:

[0006] One of the purposes of the present invention is to provide a double-station alternating forging die, comprising:

[0007] A top seat and a base are arranged facing each other in a first direction, the base can be moved toward or away from the top seat by a hydraulic unit, two groups of lower molds are movably provided on the base, and two groups of upper molds are movably provided on the top seat and facing each other with the lower molds;

[0008] A displacement driving unit, the displacement driving unit is used to synchronously drive the lower mold and the upper mold to move in a second direction;

[0009] A rotating part, the rotating part is used to drive the lower mold to rotate 360 ​​degrees in a rotation direction;

[0010] The bottom of the base is provided with a recovery box filled with liquid, the recovery box is provided with a liquid circulation part, and the lower mold is provided with a liquid outlet structure;

[0011] Among them, the liquid circulation part is used to extract the liquid in the recovery box and introduce it into the lower mold. A part of the liquid in the lower mold can flow into the recovery box through the liquid outlet structure, and the lower mold can be driven to rotate by the rotating part to pour a part of the liquid in the lower mold into the recovery box.

[0012] As an improvement of the above technical solution: a material receiving box is provided at both ends of the recycling box facing the second direction, a downwardly inclined material guide plate is provided between the base and the material receiving box, a plurality of leakage holes are provided on the material guide plate, a material guide pipe is connected between the material receiving box and the recycling box, and the top end of the material receiving box is arranged to be inclined downward toward the recycling box.

[0013] As an improvement of the above technical solution: the hydraulic part includes a fixed frame and a second hydraulic cylinder, the fixed frame is installed on the recovery box, the second hydraulic cylinder is installed on the fixed frame, the output rod of the second hydraulic cylinder is fixedly connected to the top seat, the fixed frame is provided with a guide groove along the first direction, and the top seat is slidably connected to the guide groove through a sliding block.

[0014] As an improvement of the above technical solution: a T-shaped slide groove is provided at the bottom of the top seat along the first direction, the top of the upper mold is slidably connected to the T-shaped slide groove through a T-shaped slider, a slide bar is provided at the top of the base along the second direction, and the bottom of the lower mold is slidably connected to the slide bar.

[0015] As an improvement of the above technical solution: the displacement driving part includes a first hydraulic cylinder, a connecting plate fixedly connected to the top seat and a lower connecting plate fixedly connected to the base, the upper connecting plate and the lower connecting plate are both provided with a circular block, and a driving rod extending in the first direction is inserted in the two circular blocks, the first hydraulic cylinder is installed on a fixed frame, and the output rod of the first hydraulic cylinder is fixedly connected to the driving rod.

[0016] As an improvement of the above technical solution: the liquid discharge structure includes a discharge pipe connected to the internal cavity groove of the lower mold, a valve is installed on the discharge pipe, a strip opening extending along the second direction is provided on the base, and the discharge pipe is located directly above the strip opening.

[0017] As an improvement of the above technical solution: the rotating part includes a driving motor installed on the lower connecting plate, and the output shaft of the driving motor passes through the lower connecting plate and is fixedly connected to the lower mold.

[0018] As an improvement of the above technical solution: the liquid circulation part includes a vertical frame and a pump body, the discharge pipe is fixedly connected to the recovery box, the input end of the pump body is connected to a liquid extraction pipe, the output end of the pump body is connected to a liquid outlet injection pipe, the bottom end of the liquid extraction pipe extends into the recovery box, the liquid outlet injection pipe is located above the lower mold, and a spray nozzle is installed on the liquid outlet injection pipe.

[0019] A second object of the present invention is to provide a double-station alternating forging method, using the above-mentioned double-station alternating forging die, the method comprises the following steps:

[0020] Step 1: injecting a release agent liquid into one of the lower dies and then loading the forged metal blank into the dies;

[0021] Step 2: Move the other one of the molds to the detached base by the moving driving part, drive the top seat by the hydraulic part to drive the upper mold downward to cooperate with the coaxial lower mold, and forge the forged metal blank. During forging, a release agent liquid is injected into the other lower mold and then the forged metal blank is loaded;

[0022] Step 3: After forging is completed, the upper die moves upward to allow part of the liquid from the lower die to flow into the recovery box through the liquid outlet structure, and then the mobile drive unit drives the forged lower die to separate from the base, and then the lower upper die is used to forge the forged metal billet on the other lower die. During forging, the lower die separated from the base is driven to flip downward by the rotating unit to unload the material from the lower die.

[0023] A third object of the present invention is to provide a pull rod, including a pull rod prepared by the above method.

[0024] Beneficial effects of the present invention:

[0025] 1. The double stations can be used alternately when casting the workpiece, that is, while one station is forging the forging blank, the other station can load the lower die, inject the release agent and unload the material, which greatly improves the work efficiency; and because the frequency of use of each station is reduced, the wear rate of the die is slowed down, thereby extending the service life of the die.

[0026] 2. In the present application, during the forging process of the blank on the upper and lower molds of one of the workstations, the lower mold separated from the base can be automatically loaded with a depilatory agent, thereby improving work efficiency. After the forging of the blank on the lower mold is completed, the remaining release agent in the lower mold can be returned to the recycling box and reused in the release agent, thereby saving resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The three-dimensional structure of the present invention is shown as a whole Figure 1 ;

[0028] Figure 2 The three-dimensional structure of the present invention is shown as a whole Figure 2 ;

[0029] Figure 3 The three-dimensional structure of the invention is shown as a whole Figure 3 .

[0030] Figure numerals: 1. recovery box; 2. base; 20. strip opening; 21. slide bar; 3. top seat; 30. T-shaped slide; 4. lower mold; 41. discharge pipe; 5. lower connecting plate; 51. drive motor; 6. fixed frame; 60. guide groove; 7. drive rod; 71. circular block; 8. first hydraulic cylinder; 9. upper connecting plate; 10. material guide plate; 11. leakage hole; 12. material receiving box; 13. material guide pipe; 14. vertical frame; 141. pump body; 142. liquid injection pipe; 143. liquid extraction pipe; 15. upper mold; 151. T-shaped slider; 16. second hydraulic cylinder. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0032] Example

[0033] Please refer to Figure 1-Figure 3 , a double-station alternating forging die, comprising:

[0034] A top seat 3 and a base 2 are arranged facing each other in a first direction, and the base 2 can be moved toward or away from the top seat 3 by a hydraulic unit, two groups of lower molds 4 are movably arranged on the base 2, and two groups of upper molds 15 facing the lower molds 4 are movably arranged on the top seat 3;

[0035] A displacement driving unit, which is used to synchronously drive the lower mold 4 and the upper mold 15 to move in the second direction;

[0036] The rotating part is used to drive the lower mold 4 to rotate 360 ​​degrees in the rotation direction;

[0037] A recovery box 1 filled with liquid is provided at the bottom of the base 2, the recovery box 1 is provided with a liquid circulation part, and a liquid outlet structure is provided on the lower mold 4;

[0038] The liquid circulation part is used to extract the liquid in the recovery box 1 and introduce it into the lower mold 4. A part of the liquid in the lower mold 4 can flow into the recovery box 1 through the liquid outlet structure. The lower mold 4 can be driven to rotate by the rotating part to pour a part of the liquid in the lower mold 4 into the recovery box 1. Specifically, the base 2 is fixedly connected to the recovery box 1 through a supporting frame. Specifically, the first direction corresponds to Figure 1 The Z direction shown is the up and down direction, and the second direction corresponds to Figure 1 The X direction shown is the left-right direction, and the rotation direction is Figure 1 The corresponding A direction.

[0039] In an optional embodiment: a receiving box 12 is provided at both ends of the recovery box 1 in the second direction, a downwardly inclined material guide plate 10 is provided between the base 2 and the receiving box 12, and a plurality of leakage holes 11 are provided on the material guide plate 10. Specifically, the angle between the material guide plate 10 and the horizontal plane is between 30 and 60 degrees. When the lower mold 4 is rotated downward to align with the receiving box 12, the agent liquid poured out of the lower mold 4 is mainly poured into the recovery box 1 from the leakage holes 11, and part of the extruded liquid flows into the receiving box 12 from the bottom end of the material guide plate 10, and the cast workpiece in the lower mold 4 will fall onto the material guide plate 10, and then be introduced from the material guide plate 10 into the receiving box 12, completing the automatic unloading process, saving time and effort. A material guide pipe 13 is connected between the receiving box 12 and the recovery box 1, and the top end of the receiving box 12 is inclined downward toward the recovery box 1, so that the agent liquid introduced into the receiving box 12 can flow from the material guide pipe 13 into the recovery box 1 for reuse.

[0040] In an optional embodiment: the hydraulic part includes a fixed frame 6 and a second hydraulic cylinder 16, the fixed frame 6 is installed on the recovery box 1, the second hydraulic cylinder 16 is installed on the fixed frame 6, the output rod of the second hydraulic cylinder 16 is fixedly connected to the top seat 3, the fixed frame 6 is provided with a guide groove 60 along the first direction, the top seat 3 is slidably connected to the guide groove 60 through a sliding block, and the cooperation of the sliding block and the guide groove 60 can enable the second hydraulic cylinder 16 to stably drive the top seat 3 to move up and down.

[0041] In an optional embodiment: a T-shaped slide groove 30 is provided at the bottom of the top seat 3 along the first direction, and the top of the upper mold 15 is slidably connected to the T-shaped slide groove 30 through a T-shaped slider 151, so that the upper mold 15 can be stably slidably connected to the top seat 3, and a slide bar 21 is provided at the top of the base 2 along the second direction, and the bottom of the lower mold 4 is slidably connected to the slide bar 21, so that the lower mold 4 can move stably on the base 2.

[0042] In an optional embodiment: the displacement driving part includes a first hydraulic cylinder 8, a connecting plate 9 fixedly connected to the top seat 3 and a lower connecting plate 5 fixedly connected to the base 2, and both the upper connecting plate 9 and the lower connecting plate 5 are provided with a circular block 71, and the two circular blocks 71 are inserted with a driving rod 7 extending in the first direction. The first hydraulic cylinder 8 is installed on the fixed frame 6, and the output rod of the first hydraulic cylinder 8 is fixedly connected to the driving rod 7.

[0043] In an optional embodiment: the liquid discharge structure includes a discharge pipe 41 connected to the internal cavity groove of the lower mold 4, a valve is installed on the discharge pipe 41, and a strip opening 20 extending along the second direction is provided on the base 2, and the discharge pipe 41 is located directly above the strip opening 20. The valve on the discharge pipe 41 can be opened to allow the liquid in the lower mold 4 to flow from the discharge pipe 41 through the strip opening 20 back into the interior of the recovery box 1. The discharge pipe 41 can be arranged on the opposite sides of the two lower molds 4 and be long enough to facilitate the liquid to pass through the strip opening 20.

[0044] In an optional embodiment, the rotating part includes a driving motor 51 installed on the lower connecting plate 5 , and the output shaft of the driving motor 51 passes through the lower connecting plate 5 and is fixedly connected to the lower mold 4 .

[0045] In an optional embodiment: the liquid circulation part includes a vertical frame 14 and a pump body 141, the discharge pipe 41 is fixedly connected to the recovery box 1, the input end of the pump body 141 is connected to a liquid extraction pipe 143, and the output end of the pump body 141 is connected to a liquid outlet injection pipe 142, the bottom end of the liquid extraction pipe 143 extends into the recovery box 1, the liquid outlet injection pipe 142 is located above the lower mold 4, and a spray nozzle is installed on the liquid outlet injection pipe 142. Specifically, the liquid circulation part is provided with two groups of groups respectively arranged at both ends of the base 2 in the first direction to facilitate the injection of the liquid.

[0046] In an optional embodiment: the present application also includes a double-station alternating forging method, using the above-mentioned double-station alternating forging die, the method includes the following steps:

[0047] Step 1: inject a release agent liquid into one of the lower dies 4 and then load the forged metal blank. Specifically, due to its heat-resistant property that is not easily decomposed, the release agent will not be transferred to the finished forging after being bonded to the forging die, and will not hinder the painting or other secondary processing operations of the finished forging;

[0048] Step 2: Move the other one of them to be separated from the base 2 by the moving driving part, drive the top seat 3 by the hydraulic part to drive the upper die 15 downward to cooperate with the coaxial lower die 4, and forge the forged metal blank. During forging, a release agent liquid is injected into one of the lower dies 4 and then the forged metal blank is loaded;

[0049] Step 3: After the forging is completed, the upper die 15 is moved upward, and part of the liquid of the lower die 4 flows into the recovery box 1 through the liquid outlet structure, and then the lower die 4 that has been forged is driven to separate from the base 2 by the moving drive unit, and then the forged metal blank on the other lower die 4 is forged by the lower upper die 15. During forging, the lower die 4 separated from the base 2 is driven to flip downward by the rotating unit, so that the lower die 4 can be unloaded, so that the forged parts on the lower die 4 can fall into the receiving box 12 for storage through the guide plate 10, and the liquid in the lower die 4 can be introduced into the reflux recovery box 1 through the guide plate 10 for reuse. Thus, the above steps can be reused, and the double stations can be used alternately when casting the workpiece, that is, while one station is forging the forging blank, the other station can load the lower die 4, inject the release agent and unload the material, which greatly improves the work efficiency. And because the frequency of use of each station is reduced, the wear rate of the mold is slowed down, thereby extending the service life of the mold.

[0050] Moreover, in the present application, during the forging process of the blank on the upper and lower molds 4 at one of the workstations, the lower mold 4 separated from the base 2 can be automatically loaded with a depilatory agent, thereby improving work efficiency. After the forging of the blank on the lower mold 4 is completed, the remaining release agent in the lower mold 4 can be returned to the recycling box 1 and reused in the release agent, thereby saving resources.

[0051] The present application also includes a pull rod, including a pull rod prepared by the above method, and the pull rod can be manufactured quickly.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A double-station alternating forging die, characterized in that: include: A top seat (3) and a base (2) are arranged opposite to each other in a first direction, two groups of lower molds (4) are movably arranged on the base (2), two groups of upper molds (15) are movably arranged opposite to the lower molds (4) on the top seat (3), and the base (2) can be moved closer to or farther from the top seat (3) through a hydraulic unit; A displacement driving unit, the displacement driving unit is used to synchronously drive the lower mold (4) and the upper mold (15) to move in a second direction; A rotating part, the rotating part is used to drive the lower mold (4) to rotate 360 ​​degrees in a rotation direction; A recovery box (1) filled with liquid agent is provided at the bottom of the base (2), the recovery box (1) is provided with a liquid agent circulation portion, and a liquid outlet structure is provided on the lower mold (4); The liquid circulation portion is used to extract the liquid in the recovery box (1) and introduce it into the lower mold (4); a portion of the liquid in the lower mold (4) can flow into the recovery box (1) through the liquid outlet structure, and a portion of the liquid can be driven by the rotating portion to rotate the lower mold (4) to pour into the recovery box (1).

2. The double-station alternating forging die according to claim 1, characterized in that: The recycling box (1) is provided with a material receiving box (12) at both ends in the second direction, a material guide plate (10) inclined downward is provided between the base (2) and the material receiving box (12), a plurality of material leakage holes (11) are provided on the material guide plate (10), a material guide pipe (13) is connected between the material receiving box (12) and the recycling box (1), and the top end of the material receiving box (12) is arranged to be inclined downward in the direction of the recycling box (1).

3. The double-station alternating forging die according to claim 1, characterized in that: The hydraulic unit comprises a fixed frame (6) and a second hydraulic cylinder (16), wherein the fixed frame (6) is mounted on the recovery box (1), the second hydraulic cylinder (16) is mounted on the fixed frame (6), an output rod of the second hydraulic cylinder (16) is fixedly connected to a top seat (3), the fixed frame (6) is provided with a guide groove (60) along a first direction, and the top seat (3) is slidably connected to the guide groove (60) via a sliding block.

4. The double-station alternating forging die according to claim 3, characterized in that: A T-shaped slide groove (30) is provided at the bottom of the top seat (3) along the first direction, and the top of the upper mold (15) is slidably connected to the T-shaped slide groove (30) via a T-shaped slider (151).

5. The double-station alternating forging die according to claim 4, characterized in that: The displacement driving unit comprises a first hydraulic cylinder (8), a connecting plate (9) fixedly connected to the top seat (3), and a lower connecting plate (5) fixedly connected to the base (2); the upper connecting plate (9) and the lower connecting plate (5) are both provided with a circular block (71); a driving rod (7) extending in a first direction is inserted into the two circular blocks (71); the first hydraulic cylinder (8) is mounted on a fixing frame (6); and an output rod of the first hydraulic cylinder (8) is fixedly connected to the driving rod (7).

6. The double-station alternating forging die according to claim 5, characterized in that: The liquid discharge structure comprises a discharge pipe (41) connected to the inner cavity groove of the lower mold (4), a valve is installed on the discharge pipe (41), and a strip-shaped opening (20) extending along the second direction is provided on the base (2), and the discharge pipe (41) is located directly above the strip-shaped opening (20).

7. The double-station alternating forging die according to claim 1, characterized in that: The rotating part comprises a driving motor (51) mounted on a lower connecting plate (5); an output shaft of the driving motor (51) passes through the lower connecting plate (5) and is fixedly connected to the lower mold (4).

8. A double-station alternating forging die according to claim 6, characterized in that: The liquid circulation part comprises a vertical frame (14) and a pump body (141); the discharge pipe (41) is fixedly connected to the recovery box (1); the input end of the pump body (141) is connected to a liquid extraction pipe (143); the output end of the pump body (141) is connected to a liquid discharge injection pipe (142); the bottom end of the liquid extraction pipe (143) extends into the recovery box (1); the liquid discharge injection pipe (142) is located above the lower mold (4); and a spray nozzle is installed on the liquid discharge injection pipe (142).

9. A double-station alternating forging method, characterized in that: Using the double-station alternating forging die described in any one of claims 1 to 8, the method comprises the following steps: Step 1: injecting a release agent liquid into one of the lower dies (4) and then loading the forged metal blank into it; Step 2: The other one of the molds is moved to separate from the base (2) by a moving driving unit, and the upper mold (15) moves downward to cooperate with the lower mold (4) to forge the forged metal blank. During forging, a release agent liquid is injected into the other lower mold (4) and then the forged metal blank is loaded; Step 3: After the forging is completed, the upper die (15) moves upward, and part of the liquid in the lower die (4) flows into the recovery box (1) through the liquid outlet structure, driving the lower die (4) that has been forged to separate from the base (2), and then the lower upper die (15) moves downward to forge the forged metal blank on another lower die (4). During the forging, the lower die (4) that has separated from the base (2) is driven to flip downward by the rotating part, so that the lower die (4) discharges the material.

10. Pull rod, characterized in that: The invention comprises a pull rod prepared by the forging method described in claim 9.

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