A multi-station hot forging press for gears with quick mold change

Abstract

This invention provides a multi-station hot forging press for gears with quick mold changing capabilities, relating to the field of gear processing technology. It includes: a fixed frame with a fixed base mounted on its bottom; a spring mounted on the bottom of a guide plate, the side end of which is connected to the bottom of the fixed plate, and a slot on the top of the guide plate; a drive cylinder mounted at one end of the bottom of the fixed frame, with a force-applying guide rod mounted on the output end of the drive cylinder, passing through the slot on the top of the guide plate; the force-applying guide rod is slidably mounted on one side of the bottom of the mold fixing seat. The upward movement of the guide rod pushes the mold fixing seat, causing the multi-process mold to move outward. The multi-process mold, by its own weight, detaches from the clamping plate and falls onto the guide plate, achieving rapid demolding. This improves the efficiency of multi-process mold changing and solves the problem that the high temperature of the gear blank causes the mold to expand due to heat, making the process of directly removing the mold upwards time-consuming and labor-intensive.

Description

Technical Field

[0001] This invention relates to the field of gear processing technology, and in particular to a multi-station hot forging press for gears with quick mold changing capability. Background Technology

[0002] Multi-station hot forging of gears involves first heating a high-quality metal billet to a high temperature to give it good plasticity. Then, with the help of a carefully designed mold and the powerful force of a press, the metal billet is precisely shaped into the required gear shape. To meet the shape characteristics and process requirements of the gear, the mold is usually divided into multiple stations. During the multi-station hot forging process, the press continuously and stably applies pressure to ensure high quality and high precision in gear processing.

[0003] In the existing technology, when hot forging gears, the heated gear blank is placed in the mold for forging. The mold will gradually be damaged due to high temperature and pressure impact. After long-term use, the mold may suffer various damage conditions. When the mold is replaced, the high temperature of the gear blank will cause the mold to expand due to heat. If the mold is to be taken out directly upward, the operation process is extremely time-consuming and laborious, which affects the efficiency of mold replacement. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multi-station hot forging press for gears with quick mold changes, thereby solving the problems mentioned in the background section.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] This invention relates to a multi-station hot forging press for gears with quick mold changing capabilities, specifically comprising: a fixed frame, the bottom of which is fitted with a fixed base; a positioning plate mounted on the outer side of the fixed frame; the positioning plate having an arc-shaped structure, and a guide groove formed on its outer side; a guide plate rotatably mounted inside the guide groove; the guide plate having an annular structure, and four connecting plates mounted on its outer side, with connectors mounted on each of the four connecting plates; the connectors having an arc-shaped structure, and slots formed between the side ends of the four connectors. A mold fixing seat is slidably installed in the groove; a fixing plate is installed on the outer side of the fixing frame; a guide plate is rotatably installed on the outer end of the fixing plate; a spring is installed at the bottom of the guide plate, and the side end of the spring is connected to the bottom of the fixing plate. The guide plate is located below the mold fixing seat, and a slot is provided on the top of the guide plate; a drive cylinder is installed at one end of the bottom of the fixing frame, and a force-applying guide rod is installed on the output end of the drive cylinder through the slot on the top of the guide plate; the force-applying guide rod is a cylindrical structure and is slidably installed on one side of the bottom of the mold fixing seat.

[0007] Furthermore, a positioning seat is installed on the top of the side end of the connector; a guide rotating rod is installed on the side end of the positioning seat.

[0008] Furthermore, a return spring is installed on the outer side of the guide rotating rod, and the side end of the guide rotating rod is connected to the outer side of the mold fixing seat.

[0009] Furthermore, the mold fixing base has a circular structure, and four springs are installed on the inner side of the mold fixing base. Clamping plates are installed on the inner side of the mold fixing base through the four springs. The top of the clamping plates has an inclined structure, and multi-process molds are installed between the four clamping plates.

[0010] Furthermore, a movable plate is rotatably mounted on one side of the rear of the fixed frame; a positioning plate is mounted on the side end of the movable plate; and a support plate is mounted at the middle position of the top of the positioning plate.

[0011] Furthermore, the support plate has an L-shaped structure, and a drive cylinder is installed on the top of the side end of the support plate, with an electromagnetic magnet installed on the output end of the bottom of the drive cylinder.

[0012] Furthermore, an induction heating ring is installed on the side of the positioning carrier plate; a drive cylinder is installed on the top of the fixed frame, and a pressure mold is installed on the output end of the bottom of the drive cylinder, wherein the pressure mold is movably installed on the top of the multi-process mold.

[0013] Furthermore, a refrigeration unit is installed on the rear side of the fixed base; a drive pump is installed on the top side of the refrigeration unit, and a guide pipe is installed on the output end of the drive pump.

[0014] Furthermore, the guide tube is a telescopic structure, and a guide shroud is installed on the side end of the guide tube; the bottom of the guide shroud is movably installed on the top of the mold fixing seat.

[0015] Furthermore, a drive cylinder is installed on the other side of the rear of the fixed frame, and a traction plate is installed on the output end of the drive cylinder; the side of the traction plate is connected to the outer side of the guide shroud.

[0016] This invention provides a multi-station hot forging press for gears with quick mold changing, which has the following beneficial effects:

[0017] In use, the cold airflow generated by the refrigeration unit enters the guide shroud through the drive pump and guide pipe and is then sprayed out, which can quickly and effectively cool down the multi-process mold after use. When the multi-process mold is damaged and needs to be replaced, the drive cylinder drives the force guide rod to move upward, pushing the mold fixing seat and moving the multi-process mold outward. The multi-process mold uses its own weight to detach from the clamping plate and fall onto the guide plate. The guide plate rotates and tilts, causing the multi-process mold to slide down, achieving rapid demolding. This simplifies the multi-process mold replacement process, reduces the difficulty and time cost of manual operation, and improves the efficiency of multi-process mold replacement.

[0018] In addition, the multi-process mold pusher clamp is installed inside the mold fixing seat, and the pusher connector drives the mold fixing seat to move. The mold fixing seat drives the multi-process mold to be stably placed on the fixed base, which can effectively resist the huge impact and vibration generated during the forging process, ensuring that the multi-process mold remains stable during the forging process. The four multi-process molds can be rotated to realize multi-station replacement, shortening the production cycle. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0020] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0021] In the attached diagram:

[0022] Figure 1 A schematic diagram of the overall structure of the present invention is shown;

[0023] Figure 2 A three-dimensional structural diagram of the positioning plate of the present invention is shown;

[0024] Figure 3 A schematic cross-sectional view of the guide plate structure of the present invention is shown;

[0025] Figure 4 A cross-sectional view of the mold fixing base of the present invention is shown;

[0026] Figure 5 A three-dimensional structural diagram of the movable plate of the present invention is shown;

[0027] Figure 6 A three-dimensional structural diagram of the support plate of the present invention is shown;

[0028] Figure 7 A three-dimensional structural schematic diagram of the flow guide shield of the present invention is shown;

[0029] Figure 8 A three-dimensional structural diagram of the guide plate of the present invention is shown;

[0030] Figure 9 A three-dimensional structural diagram of the force-applying guide rod of the present invention is shown.

[0031] List of reference numerals

[0032] 1. Fixed frame; 101. Fixed base; 102. Positioning plate; 103. Guide groove; 104. Guide plate; 105. Connector; 106. Positioning seat; 107. Guide rotation rod; 108. Mold fixing seat; 109. Clamping plate;

[0033] 2. Movable plate; 201. Positioning carrier plate; 202. Support plate; 203. Electromagnetic magnet; 204. Induction heating ring; 205. Pressure mold;

[0034] 3. Refrigeration unit components; 301. Flow guide pipe; 302. Flow guide cover; 303. Traction plate; 304. Fixing plate; 305. Guide support plate; 306. Force application guide rod;

[0035] 4. Multi-process molds. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Please refer to Figures 1 to 9 :

[0038] Example 1: This invention proposes a multi-station hot forging press for gears with quick mold changing, comprising: a fixed frame 1, with a fixed base 101 installed at the bottom of the fixed frame 1; a positioning plate 102 installed on the outer side of the fixed frame 1; the positioning plate 102 has an arc-shaped plate structure, and a guide groove 103 is formed on the outer side of the positioning plate 102; a guide plate 104 is rotatably installed inside the guide groove 103; the guide plate 104 has an annular structure, and four connecting plates are installed on the outer side of the guide plate 104, with connecting parts 105 installed on the outer side of the guide plate 104 through the four connecting plates; the connecting parts 105 have an arc-shaped structure, and the four connecting parts 105... A slot is provided between the side ends, and a mold fixing seat 108 is slidably installed in the slot; a positioning seat 106 is installed on the top of the side end of the connector 105; a guide rotating rod 107 is installed on the side end of the positioning seat 106; a return spring is installed on the outside of the guide rotating rod 107, and the side end of the guide rotating rod 107 is connected to the outside of the mold fixing seat 108; the mold fixing seat 108 has a circular structure, and four springs are installed on the inside of the mold fixing seat 108. Clamping plates 109 are installed on the inside of the mold fixing seat 108 through the four springs. The top of the clamping plate 109 has an inclined structure, and a multi-process mold 4 is installed between the four clamping plates 109.

[0039] In this embodiment of the invention, when hot forging gears, the multi-stage hot forging dies 4 are respectively installed inside the die fixing base 108, and the four die fixing bases 108 are respectively installed in the slots between the side ends of the four connecting parts 105. The side of the positioning base 106 is positioned by the guide rotating rod 107 driving the die fixing base 108 to position it. When the multi-stage die 4 is installed inside the die fixing base 108, the bottom edge pushes the top of the clamping plate 109 to move, so that the multi-stage die 4 is installed inside the die fixing base 108. The clamping plate 109 is stably installed on the inner side of the mold fixing seat 108 under the action of the spring. When forging, the push connecting piece 105 drives the four mold fixing seats 108 to move. Then, the connecting piece 105 drives the guide plate 104 to move along the guide groove 103 through the connecting plate. The positioning plate 102 positions the guide plate 104. The mold fixing seat 108 drives the multi-process mold 4 to be placed on the fixed base 101 to ensure the stability of the position of the multi-process mold 4. The four multi-process molds 4 rotate to change multiple positions to ensure the accuracy of gear processing.

[0040] In Example 2, based on Example 1, a movable plate 2 is rotatably mounted on the rear side of the fixed frame 1; a positioning carrier plate 201 is mounted on the side end of the movable plate 2; a support plate 202 is mounted at the middle position of the top of the positioning carrier plate 201; the support plate 202 has an L-shaped structure, and a drive cylinder is mounted on the top of the side end of the support plate 202, with an electromagnetic magnet 203 mounted on the output end of the bottom of the drive cylinder; an induction heating ring 204 is mounted on the side of the positioning carrier plate 201; a drive cylinder is mounted on the top of the fixed frame 1, and a pressure mold 205 is mounted on the output end of the bottom of the drive cylinder. The pressure mold 205 is movably mounted downwards on the top of the multi-process mold 4. When the gear is hot forged, the mold fixing seat 108 drives the multi-process mold 4 to move onto the fixed base 101, and the drive cylinder on the top of the fixed frame 1... The pressure mold 205 is moved downward to forge the gear blank in the multi-process mold 4. When the multi-process mold 4 is changed, the movable plate 2 is rotated on the rear side of the fixed frame 1 to move the support plate 202 on the top of the positioning carrier plate 201. The drive cylinder on the top side of the support plate 202 drives the electromagnetic magnet 203 to move downward. Through electromagnetic technology, the electromagnetic magnet 203 magnetically attracts the gear blank. The drive cylinder drives the gear blank magnetically attracted by the electromagnetic magnet 203 to move upward and into the induction heating ring 204, so that the gear blank is in a heated state, preventing cooling problems when changing the multi-process mold 4. After changing the multi-process mold 4, the drive cylinder drives the electromagnetic magnet 203 to move downward and install it on the inner side of the multi-process mold 4, which facilitates the continuous processing of the gear.

[0041] In Example 3, based on Example 1, a refrigeration unit 3 is installed on the rear side of the fixed base 101; a drive pump is installed on the top side of the refrigeration unit 3, and a guide pipe 301 is installed on the output end of the drive pump; the guide pipe 301 is a telescopic structure, and a guide shroud 302 is installed on the side end of the guide pipe 301; the bottom of the guide shroud 302 is movably installed on the top of the mold fixing seat 108; a drive cylinder is installed on the other side of the rear of the fixed frame 1, and a traction plate 303 is installed on the output end of the drive cylinder; the side of the traction plate 303 is connected to the outer side of the guide shroud 302; the outer side of the fixed frame 1 is installed with... A fixed plate 304 is provided; a guide plate 305 is rotatably mounted on the outer end of the fixed plate 304; a spring is installed at the bottom of the guide plate 305, and the side end of the spring is connected to the bottom of the fixed plate 304. The guide plate 305 is located below the mold fixing seat 108, and a slot is provided on the top of the guide plate 305; a drive cylinder is installed at one end of the bottom of the fixing frame 1, and a force-applying guide rod 306 is installed on the output end of the drive cylinder through the slot on the top of the guide plate 305; the force-applying guide rod 306 has a cylindrical structure and is slidably installed on one side of the bottom of the mold fixing seat 108, corresponding to the gear. During hot forging, the drive cylinder on the other side of the rear of the fixed frame 1 drives the traction plate 303 to move downward. The traction plate 303 drives the guide shroud 302 to be installed on the top of the used mold fixing seat 108. The cold air generated by the refrigeration unit 3 enters the guide pipe 301 through the drive pump and then enters the interior of the guide shroud 302. The cold air is sprayed out through the guide shroud 302 to cool the used multi-process mold 4. When the multi-process mold 4 is damaged and needs to be replaced, the drive cylinder at one end of the bottom of the fixed frame 1 drives the force guide rod 306 to move upward. The force guide rod 306 pushes... The moving mold fixing seat 108 rotates, and the mold fixing seat 108 drives the guide rotating rod 107 to rotate on the side of the positioning seat 106, so that the mold fixing seat 108 drives the inner multi-process mold 4 to move outward. Since the multi-process mold 4 is heavier, it is released from the fixation of the clamping plate 109, so that the multi-process mold 4 falls on the guide plate 305. The multi-process mold 4 presses the guide plate 305 to rotate on the side of the fixing plate 304, so that the guide plate 305 is tilted and slides the multi-process mold 4 out. The demolding is carried out by the weight of the multi-process mold 4 itself, which improves the efficiency of the multi-process mold 4 replacement.

[0042] The working principle of this embodiment is as follows: The bottom edge of the multi-process mold 4 pushes the top of the clamping plate 109 to move. The multi-process mold 4 is installed inside the mold fixing seat 108. The connecting piece 105 drives the four mold fixing seats 108 to move. The connecting piece 105 drives the guide plate 104 to move along the guide groove 103 through the connecting plate. The mold fixing seat 108 drives the multi-process mold 4 to be placed on the fixed base 101. The drive cylinder at the top of the fixed frame 1 drives the pressure mold 205 to move downward to forge the gear blank in the multi-process mold 4. When the multi-station multi-process mold 4 is replaced, the rotating movable plate 2 drives the support plate 202 at the top of the positioning carrier plate 201 to move. The drive cylinder at the top of the side end of the support plate 202 drives the electromagnetic magnet 203 to move downward. Through electromagnetic technology, the electromagnetic magnet 203 magnetically attracts the gear blank. The electromagnetic magnet 203 drives the gear blank to move upward to the induction heating ring. Inside 204, the gear blank is heated. After the multi-process mold 4 is rotated and replaced, the drive cylinder drives the electromagnetic magnet 203 to move downward and install it inside the multi-process mold 4 for continuous processing. The drive cylinder drives the guide shroud 302 on the side of the traction plate 303 to be installed on the mold fixing seat 108 after use. The cold air generated by the refrigeration unit 3 enters the guide shroud 302 through the guide pipe 301 and sprays out to cool the multi-process mold 4 after use. The drive cylinder at one end of the bottom of the fixed frame 1 drives the force guide rod 306 to move upward and push the mold fixing seat 108 to rotate. The mold fixing seat 108 drives the multi-process mold 4 inside to rotate outward. Due to the heavy weight of the multi-process mold 4, it is released from the clamping plate 109 and falls on the guide plate 305. The multi-process mold 4 presses the guide plate 305 and rotates at the side of the fixing plate 304 in an inclined position to guide the multi-process mold 4 out, completing the demolding and replacement of the damaged multi-process mold 4.

[0043] The following points should be noted in this article:

[0044] 1. The accompanying drawings of the embodiments of the present invention only involve the structures involved in the embodiments of the present invention; other structures can refer to general designs.

[0045] 2. Where there is no conflict, the embodiments of the present invention and the features thereof can be combined with each other to obtain new embodiments.

[0046] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A multi-station hot forging press for gears with quick die change, comprising: A fixed frame (1) is provided, and a fixed base (101) is installed at the bottom of the fixed frame (1). The fixed frame (1) is characterized by having a positioning plate (102) installed on the outer side of the fixed frame (1). A guide groove (103) is provided on the outer side of the positioning plate (102). A guide plate (104) is rotatably installed inside the guide groove (103). Four connecting plates are installed on the outer side of the guide plate (104), and connectors (105) are installed on the outer side of the guide plate (104) through the four connecting plates. A slot is formed between the side ends of the four connectors (105), and a mold fixing seat (108) is slidably installed in the slot. A refrigeration unit (3) is installed on the rear side of the fixed base (101). A drive pump is installed on the top side of the refrigeration unit (3), and a guide pipe (301) is installed on the output end of the drive pump. A guide shroud (302) is installed on the side end of the guide pipe (301). The bottom of the guide shroud (302) is... The movable part is placed on top of the mold fixing seat (108); a drive cylinder is installed on the other side of the rear of the fixing frame (1), and a traction plate (303) is installed at the output end of the drive cylinder; the side of the traction plate (303) is connected to the outside of the guide shroud (302); a fixing plate (304) is installed on the outside of the fixing frame (1); a guide plate (305) is rotatably installed on the outer end of the fixing plate (304); a spring is installed at the bottom of the guide plate (305), one end of the spring is connected to the bottom of the fixing plate (304), the guide plate (305) is located below the mold fixing seat (108), and the top of the guide plate (305) is provided with a slot; a drive cylinder is installed at one bottom end of the fixing frame (1), and a force-applying guide rod (306) is installed through the slot at the top of the guide plate (305) at the output end of the drive cylinder; the force-applying guide rod (306) is slidably installed on one side of the bottom of the mold fixing seat (108).

2. The gear multi-station hot forging press with quick mold changing according to claim 1, characterized in that, A positioning seat (106) is installed on the top of the side end of the connector (105); a guide rotating rod (107) is installed on the side end of the positioning seat (106).

3. A gear multi-station hot forging press with quick mold changing according to claim 2, characterized in that, A reset spring is installed on the outer side of the guide rotating rod (107), and the side end of the guide rotating rod (107) is connected to the outer side of the mold fixing seat (108).

4. A gear multi-station hot forging press with quick mold changing according to claim 3, characterized in that, Four springs are installed on the inner side of the mold fixing seat (108), and clamping plates (109) are installed on the inner side of the mold fixing seat (108) through the four springs. A multi-process mold (4) is installed between the four clamping plates (109).

5. A gear multi-station hot forging press with quick mold changing according to claim 4, characterized in that, A movable plate (2) is rotatably installed on one side of the rear of the fixed frame (1); a positioning plate (201) is installed on the side end of the movable plate (2); and a support plate (202) is installed at the middle position of the top of the positioning plate (201).

6. A gear multi-station hot forging press with quick mold changing according to claim 5, characterized in that, A drive cylinder is installed on the top side of the support plate (202), and an electromagnetic magnet (203) is installed at the output end of the bottom of the drive cylinder.

7. A gear multi-station hot forging press with quick mold changing according to claim 6, characterized in that, An induction heating ring (204) is installed on the side of the positioning carrier plate (201); a drive cylinder is installed on the top of the fixed frame (1), and a pressure mold (205) is installed on the output end of the bottom of the drive cylinder, wherein the pressure mold (205) is placed downward on the top of the multi-process mold (4).

Images