Stop valve seat forging device

Abstract

The invention relates to the technical field of valve forging, and particularly discloses a stop valve seat forging device which comprises a supporting plate, the inner wall of the supporting plate is fixedly connected with a circulating track, a plurality of stations are arranged around the supporting plate and move circularly under the limitation of the circulating track, each station is fixedly connected with a lower die, and the lower die is fixedly connected with an upper die. Two reinforcing frames are fixedly connected to the upper side of the supporting plate, air cylinders are fixedly connected to the tops of the two reinforcing frames, upper molds are fixedly connected to the extension ends of the two air cylinders, a clamping turnover mechanism is arranged between the two reinforcing frames, an ejection mechanism is arranged on the lower side of the clamping turnover mechanism, and a grooved wheel conveying mechanism is arranged on the supporting plate. And the forging valve seat workpiece can be automatically and continuously machined, double-face machining is carried out on the workpiece, it can be guaranteed that the two faces of the workpiece are evenly treated, and therefore the overall machining precision and production efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of valve forging, and more particularly to a stop valve seat forging device. Background Art

[0002] A stop valve is a valve whose closing member (valve disc) moves along the center line of the valve seat. Its working principle is to control the flow of fluid by the movement of the valve disc on the valve seat. The valve disc moves linearly along the center line of the valve seat, changing the distance between the valve disc and the valve seat, thereby changing the cross-sectional area of ​​the flow channel to achieve control and cutoff of the flow.

[0003] Patent No. CN117047026A discloses a valve body forging device and forging process thereof, including a forging seat, a driving device for driving the casting to rotate, and a supporting device for supporting the forging position of the casting; the driving device is movably arranged on the forging seat; the supporting device is arranged on one side of the forging seat. The invention solves the problem that the control requirements of the heat treatment temperature in the existing solution are high, the valve body often fails to achieve the ideal organizational form after heat treatment in daily production, and the heat treatment process takes a long time, which affects the production efficiency.

[0004] Existing valve seats are generally forged one by one. Forging valve seats one by one means that each valve seat needs to go through a series of complex forging processes, including heating, forging, cooling, etc. These processes require a lot of time and manpower, resulting in relatively low production efficiency. Moreover, only one side can be processed at a time. Problems such as uneven thickness and shape deviation caused by single-sided processing are not enough to meet existing product needs. Turning over requires manual or mechanical assistance, which wastes time and reduces production efficiency. For this reason, we propose a forging device for a stop valve seat. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a stop valve seat forging device to solve the problems existing in the above-mentioned background technology.

[0006] The present invention provides the following technical solutions: a stop valve seat forging device, comprising a support plate, the inner wall of the support plate is fixedly connected to a circulating track, a plurality of workstations are arranged around the support plate, the workstations move cyclically under the limit of the circulating track, each of the workstations is fixedly connected to a lower mold, two reinforcement frames are fixedly connected to the upper side of the support plate, the tops of the two reinforcement frames are fixedly connected to cylinders, the extended ends of the two cylinders are fixedly connected to the upper mold, a clamping and flipping mechanism is arranged between the two reinforcement frames, an ejection mechanism is arranged at the lower side of the clamping and flipping mechanism, a groove wheel conveying mechanism is arranged on the support plate, and the intermittent cyclic movement of the plurality of workstations is controlled by the groove wheel conveying mechanism, so that each workstation pauses after passing through the reinforcement frame and the clamping and flipping mechanism, and the workpiece is ejected by the ejection mechanism to cooperate with the clamping and flipping mechanism for flipping; The groove wheel conveying mechanism includes a sprocket, a chain, a first motor and a driven groove wheel, two sprockets are provided and are rotatably connected between the inner walls of the support plate, the chain transmission is connected between the two sprockets, the first motor is fixedly connected to the side of the support plate, the output end of the first motor is fixedly connected to a driving dial, the driven groove wheel is fixedly connected to one of the sprockets, and the driving dial is meshed with the driven groove wheel.

[0007] Furthermore, positioning grooves are provided on both sides of each of the workstations, pulleys are installed on both sides of the workstations, the pulleys are rollingly connected to the surface of the circulating track, and an extension rod is fixedly connected between the workstation and the chain.

[0008] Furthermore, the extended end of the cylinder is fixedly connected to a U-shaped frame, the side wall of the reinforcement frame is provided with a first slide groove, the U-shaped frame is slidably connected in the first slide groove, the U-shaped frame is fixedly connected to a first slider near the positioning groove, and the first slider is slidably connected in the positioning groove.

[0009] Furthermore, the ejection mechanism includes a second motor, an eccentric wheel, a limiting sleeve and a straight rod, the second motor is fixedly connected to the side of the support plate, the eccentric wheel is fixedly connected to the output end of the second motor, the limiting sleeve is fixedly connected to the inner wall of the support plate, the straight rod is slidably connected in the limiting sleeve, a second slider is fixedly connected to the bottom of the straight rod, a second slide groove is opened on the side of the eccentric wheel close to the second slider, and the second slider is slidably connected in the second slide groove.

[0010] Furthermore, a top block is installed between the work station and the lower mold, and the top block can slide through the lower mold. A spring is sleeved on the circumferential surface of the top block, and the straight rod can move upward to eject the top block.

[0011] Furthermore, the clamping and flipping mechanism includes a support frame, a slide, a third motor, an electric clamp and an electric push rod. The support frame is fixedly connected to the upper side of the support plate, the slide is slidably connected in the support frame, the third motor is fixedly connected to the side of the slide, the electric clamp is fixedly connected to the output end of the third motor, the electric push rod is fixedly connected to the lower inner wall of the support frame, and the extended end of the electric push rod is fixedly connected to the slide.

[0012] Furthermore, the circulating track is symmetrically arranged on the inner wall of the support plate, four pulleys are arranged on a side of each workstation close to the circulating track, and the diameter of the end of the first sliding block gradually decreases.

[0013] Technical effects and advantages of the present invention: The present invention controls the cyclic movement of several workstations by providing a groove wheel conveying mechanism, which is beneficial to the automated continuous processing of forged valve seat workpieces. Through the cyclically moving workstations, the valve seat forging production can be carried out continuously and stably, effectively improving the production efficiency. Compared with traditional manual forging or simple mechanized forging, automated forging can greatly shorten the production cycle, meet the needs of large-scale production, reduce the manual operation links, reduce the dependence on workers, thereby effectively saving labor costs, and can also reduce the labor intensity of workers, improve the working environment, and reduce the occurrence of work-related accidents. Through automated control, precise control of the forging process can be achieved, which is beneficial to the production of valve seat products with stable quality and excellent performance.

[0014] The present invention is advantageous for double-sided processing of the workpiece by providing an ejection mechanism and a clamping and flipping mechanism to flip the workpiece, and can ensure that both sides of the workpiece are processed evenly, thereby improving the overall processing accuracy and avoiding problems such as uneven thickness and shape deviation caused by single-sided processing. In the automated processing process, by accurately controlling the flipping timing and flipping action, the error accumulation caused by multiple clamping and positioning can be reduced, which helps to maintain the high accuracy and consistency of the valve seat and meet strict quality requirements. In addition, there is no need to interrupt the production process for manual flipping or re-clamping, which improves the automation level of the production line, reduces manual intervention, and thus improves production efficiency.

[0015] The present invention is advantageous in that the position of the workstation can be finely adjusted by using the first slider by providing the first slider. Since the workstation moves according to the position of the chain, there may be slight deviations. By synchronously descending the first slider with the upper die, the position of the workstation can be finely adjusted before the workpiece is forged, so that the lower die can be accurately processed, effectively ensuring the quality of the forged product. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 It is a top view of the overall structure of the present invention.

[0018] Figure 3 It is a schematic diagram of the internal structure of the present invention.

[0019] Figure 4 It is a schematic diagram of the grooved wheel conveying mechanism of the present invention.

[0020] Figure 5 It is a schematic diagram of the clamping and flipping mechanism of the present invention.

[0021] Figure 6 It is a schematic diagram of the ejection mechanism of the present invention.

[0022] Figure 7It is a schematic diagram of the cross-sectional structure of the lower mold of the present invention.

[0023] Figure 8 It is a schematic diagram of the upper mold structure of the present invention.

[0024] The accompanying drawings are marked as follows: 1. support plate; 2. circulating track; 3. work station; 301. positioning groove; 302. pulley; 303. ejector block; 304. spring; 305. extension rod; 4. lower mold; 5. reinforcement frame; 501. first slide groove; 6. groove wheel conveying mechanism; 601. sprocket; 602. chain; 603. first motor; 604. active dial; 605. driven groove wheel; 7. cylinder; 701. upper mold; 702. U-shaped frame; 703. first slider; 8. ejection mechanism; 801. second motor; 802. eccentric wheel; 803. limiting sleeve; 804. straight rod; 805. second slider; 806. second slide groove; 9. clamping and flipping mechanism; 901. support frame; 902. slide seat; 903. third motor; 904. electric clamp; 905. electric push rod. DETAILED DESCRIPTION

[0025] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The valve seat forging device of a stop valve involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0026] Reference Figures 1 to 8 The present invention provides a stop valve seat forging device, comprising a support plate 1, the inner wall of the support plate 1 is fixedly connected to a circulating track 2, a plurality of workstations 3 are arranged around the support plate 1, the workstations 3 move cyclically under the limit of the circulating track 2, each workstation 3 is fixedly connected to a lower mold 4, two reinforcement frames 5 are fixedly connected to the upper side of the support plate 1, the tops of the two reinforcement frames 5 are fixedly connected to a cylinder 7, the extended ends of the two cylinders 7 are fixedly connected to an upper mold 701, a clamping and turning mechanism 9 is arranged between the two reinforcement frames 5, an ejection mechanism 8 is arranged at the lower side of the clamping and turning mechanism 9, a groove wheel conveying mechanism 6 is arranged on the support plate 1, and the intermittent cyclic movement of the plurality of workstations 3 is controlled by the groove wheel conveying mechanism 6, so that each workstation 3 pauses after passing through the reinforcement frame 5 and the clamping and turning mechanism 9, and the workpiece is ejected by the ejection mechanism 8 to cooperate with the clamping and turning mechanism 9 for turning.

[0027] The groove wheel conveying mechanism 6 includes a sprocket 601, a chain 602, a first motor 603 and a driven groove wheel 605. Two sprockets 601 are provided and are rotatably connected between the inner walls of the support plate 1. The chain 602 is transmission-connected between the two sprockets 601. The first motor 603 is fixedly connected to the side of the support plate 1. The output end of the first motor 603 is fixedly connected to a driving dial 604. The driven groove wheel 605 is fixedly connected to one of the sprockets 601, and the driving dial 604 is meshed with the driven groove wheel 605.

[0028] In this embodiment, it is necessary to specifically explain that: the circulating track 2 is symmetrically arranged on the inner wall of the support plate 1, and the pulley 302 is installed on the workstation 3. The pulley 302 is used to roll on the surface of the circulating track 2, so as to limit the circulating movement of the workstation 3 on the circulating track 2, and a plurality of workstations 3 are evenly distributed, that is, the distances between the plurality of workstations 3 are the same, the lower mold 4 and the upper mold 701 are used together to process forged workpieces, and the groove wheel conveying mechanism 6 is used to control the intermittent cyclic movement of a plurality of workstations 3. When working, the active dial 604 is driven to rotate by the output end of the first motor 603, and the active dial 604 drives the driven groove wheel 605 to rotate intermittently, and the driven groove wheel 605 drives the sprocket 601 to rotate intermittently, thereby driving the chain 602 to move intermittently, and the chain 602 drives the workstation 3 to move through the extension rod 305 when moving, and finally drives the lower mold 4 to move, and each lower mold 4 will pause when passing the lower side of the reinforcement frame 5. At this time, the upper die 701 is controlled by the cylinder 7 to move downward to forge the workpiece. This solution realizes the automated forging system of the workpiece through the cyclic movement of the workstation 3. Through the cyclically moving workstation, the valve seat forging production can be carried out continuously and stably, which effectively improves the production efficiency. Compared with traditional manual forging or simple mechanized forging, automated forging can greatly reduce the production cycle and meet the needs of large-scale production. The automated forging system reduces the manual operation links and reduces the dependence on workers, thereby effectively saving labor costs. Automated forging can also reduce the labor intensity of workers, improve the working environment, and reduce the occurrence of work-related accidents. Through automated control, precise control of the forging process can be achieved, thereby producing valve seat products with stable quality and excellent performance.

[0029] Preferably, the cyclically moving workstations can be designed according to actual conditions, so that the automated forging system designed in this scheme can flexibly respond to the production needs of valve seats of different specifications and materials. By adjusting the tooling and process parameters, the production of valve seats of different models can be quickly switched, thereby improving the flexibility and adaptability of the production line.

[0030] The main difference between the present embodiment and the prior art is that the present embodiment adopts an ejection mechanism 8 and a clamping and flipping mechanism 9 to flip the workpiece, specifically: the positions of the two upper molds 701 and the clamping and flipping mechanism 9 correspond to the three consecutive lower molds 4, the lower molds 4 located on both sides correspond to the positions of the upper mold 701, and the lower mold 4 located in the middle corresponds to the position of the clamping and flipping mechanism 9. While the upper mold 701 is performing the forging step, the eccentric wheel 802 is driven to rotate by the output end of the second motor 801, the eccentric wheel 802 drives the second slider 805 to move upward, the second slider 805 drives the straight rod 804 to move upward, the straight rod 804 pushes the ejector block 303 to move upward, so that the workpiece in the lower mold 4 is ejected by the ejector block 303, at this time, the electric clamp 904 is controlled to clamp the two sides of the workpiece, and then the output end of the second motor 801 rotates to make the straight rod 804 return to its original position, and the extended end of the electric push rod 905 is controlled to drive the slide 902 to move upward, and the slide 902 drives the electric clamp 904 to move upward After the workpiece is separated from the lower mold 4, the electric clamp 904 is driven to rotate through the output end of the third motor 903. The electric clamp 904 drives the workpiece to flip 180 degrees, and then controls the extended end of the electric push rod 905 to move downward, so that the electric clamp 904 moves downward. After the workpiece is put back into the lower mold 4, the electric clamp 904 is released, so that the workpieces corresponding to the two upper molds 701 are in a flipped state, and the workpiece can be processed on both sides to ensure that both sides of the workpiece are processed evenly, thereby improving the overall processing accuracy and avoiding problems such as uneven thickness and shape deviation caused by single-sided processing. In the automated processing process, by accurately controlling the flipping timing and flipping action, the error accumulation caused by multiple clamping and positioning can be reduced, which helps to maintain the high accuracy and consistency of the valve seat and meet strict quality requirements. There is no need to interrupt the production process for manual flipping or re-clamping, which improves the automation level of the production line, reduces manual intervention, and thus improves production efficiency.

[0031] The above structure is the main structure of this embodiment, which solves the problem of low efficiency of forging valve seats one by one, and the active dial 604 and the driven groove wheel 605 are existing structures. The specific structure and connection method of the lower mold 4 and the upper mold 701 are not described in detail in this embodiment. In addition, how the clamping and flipping mechanism 9 clamps and flips also belongs to the existing technology. Therefore, this application does not make detailed limitations.

[0032] Reference Figure 3 and Figure 6 Positioning grooves 301 are provided on both sides of each workstation 3, pulleys 302 are installed on both sides of the workstation 3, the pulleys 302 are rollingly connected to the surface of the circulating track 2, and an extension rod 305 is fixedly connected between the workstation 3 and the chain 602.

[0033] In this embodiment, it is necessary to specifically explain that: the pulley 302 can roll on the surface of the circulating track 2, the circulating track 2 is an upper and lower double-track structure, and the pulley 302 is designed as a double-wheel structure according to the circulating track 2, that is, four pulleys 302 are arranged near the circulating track 2 at the workstation 3, and the contact area is larger, providing a more reliable support force to ensure that the workstation 3 always maintains a stable path during the movement, and effectively prevents the deviation caused by uneven force or external force interference. The extension rod 305 is used to connect the workstation 3 and the chain 602, and the chain 602 transmission has a relatively accurate average transmission ratio, which means During the movement between the workstations 3, the chain 602 can maintain a stable transmission speed to ensure the synchronization and coordination between several workstations 3. This accuracy helps to realize the automation and precise control of the production line, improve production efficiency and product quality, and the structure of the transmission system of the chain 602 is relatively compact, which can save space and make the production line layout more flexible. At the same time, as a flexible element, the chain 602 can freely change its length by adding or reducing links, so as to adapt to the distance and layout requirements between different workstations. This flexibility helps to adapt to various production environments and process requirements.

[0034] Reference Figure 6 and Figure 8 The extended end of the cylinder 7 is fixedly connected to a U-shaped frame 702, a first slide groove 501 is opened on the side wall of the reinforcement frame 5, the U-shaped frame 702 is slidably connected in the first slide groove 501, and a first slider 703 is fixedly connected to the U-shaped frame 702 near the positioning groove 301, and the first slider 703 is slidably connected in the positioning groove 301.

[0035] In this embodiment, it is necessary to specifically explain that when the extended end of the cylinder 7 pushes the upper die 701 to rise and fall, the U-shaped frame 702 follows the rise and fall, and the U-shaped frame 702 moves in the first slide groove 501. The first slide groove 501 is used to limit the linear movement of the U-shaped frame 702 to prevent the upper die 701 from being offset, thereby ensuring an accurate forging process. The first slider 703 is designed to cooperate with the positioning groove 301. During the descent of the first slider 703, the first slider 703 will slide into the positioning groove 301, and the diameter of the end of the first slider 703 will gradually decrease. After sliding into the positioning groove 301, the first slider 703 and the positioning groove 301 will fit seamlessly, thereby realizing the use of the first slider 703 to finely adjust the position of the workstation 3. Since the workstation 3 moves according to the position of the chain 602, there may be a slight deviation. By descent of the first slider 703 and the upper die 701 simultaneously, the position of the workstation 3 can be finely adjusted before the workpiece is forged, so that the lower die 4 can be accurately processed, thereby effectively ensuring the quality of the forged product.

[0036] Reference Figure 1 , Figure 2 and Figure 6The ejection mechanism 8 includes a second motor 801, an eccentric wheel 802, a limiting sleeve 803 and a straight rod 804. The second motor 801 is fixedly connected to the side of the support plate 1, the eccentric wheel 802 is fixedly connected to the output end of the second motor 801, the limiting sleeve 803 is fixedly connected to the inner wall of the support plate 1, the straight rod 804 is slidably connected in the limiting sleeve 803, and a second slider 805 is fixedly connected to the bottom of the straight rod 804. A second slide groove 806 is opened on the side of the eccentric wheel 802 close to the second slider 805, and the second slider 805 is slidably connected in the second slide groove 806.

[0037] In this embodiment, it should be specifically explained that: the limiting sleeve 803 is located at the lower side of the clamping and flipping mechanism 9, the straight rod 804 and the second slider 805 are an integral structure, and the eccentric wheel 802 is driven to rotate through the output end of the second motor 801 during operation. Since the second slider 805 slides in the second slide groove 806, and the straight rod 804 moves in a straight line under the restriction of the limiting sleeve 803, the eccentric wheel 802 can drive the straight rod 804 to move back and forth up and down, thereby realizing the ejection and reset function of the straight rod 804.

[0038] Reference Figure 7 A top block 303 is installed between the workstation 3 and the lower mold 4. The top block 303 can slide through the lower mold 4. A spring 304 is sleeved on the circumferential surface of the top block 303. The straight rod 804 moves upward to eject the top block 303.

[0039] In this embodiment, it is necessary to specifically explain that: a small hole is provided at the bottom of the work station 3, and the straight rod 804 can move upward to pass through the small hole and push the top block 303 to move upward, thereby ejecting the workpiece in the lower mold 4. After the straight rod 804 is reset downward, under the elastic action of the spring 304, the top block 303 returns to its original position, realizing the ejection and reset functions of the top block 303, and can be recycled.

[0040] Reference Figure 5 The clamping and flipping mechanism 9 includes a support frame 901, a slide 902, a third motor 903, an electric clamp 904 and an electric push rod 905. The support frame 901 is fixedly connected to the upper side of the support plate 1, the slide 902 is slidably connected in the support frame 901, the third motor 903 is fixedly connected to the side of the slide 902, the electric clamp 904 is fixedly connected to the output end of the third motor 903, the electric push rod 905 is fixedly connected to the lower inner wall of the support frame 901, and the extended end of the electric push rod 905 is fixedly connected to the slide 902.

[0041] In this embodiment, it is necessary to specifically explain that: the support frame 901 is used to install the slide 902 and the electric push rod 905, and the slide 902 can be pushed upward by the electric push rod 905. The electric clamp 904 is a commonly used parallel clamp. In the initial state, the electric clamp 904 is slightly higher than the position of the lower mold 4. During operation, after the top block 303 pushes the workpiece out to a certain height, the electric clamp 904 is controlled to clamp the workpiece, and then the slide 902 is driven to move upward by the electric push rod 905, and the slide 902 drives the electric clamp 904 to move upward to separate the workpiece from the lower mold 4, and then the electric clamp 904 is driven to flip by the third motor 903 to flip the workpiece 180 degrees. After the workpiece is flipped over, the electric clamp 904 returns to its original position and releases the workpiece, and the workpiece returns to the lower mold 4. The flipped workpiece moves and continues to the lower side of the next reinforcement frame 5, and the flipped workpiece can be forged.

[0042] Reference Figure 4 The circulating track 2 is symmetrically arranged on the inner wall of the support plate 1, and four pulleys 302 are arranged on one side of each workstation 3 close to the circulating track 2, and the diameter of the end of the first slider 703 gradually decreases.

[0043] In this embodiment, it should be specifically explained that: two circulating rails 2 are designed and located on both sides of the workstation 3. Compared with the single-rail structure, it is more stable and provides a more stable support effect. The four pulleys 302 have a larger contact area with the circulating rail 2, providing a more reliable support force to ensure that the workstation 3 always maintains a stable path during movement. The end diameter of the first slider 703 is the smallest. If the position of the workstation 3 is offset, the first slider 703 can be inserted into the positioning groove 301 more smoothly, and the correction effect is gradually realized during the insertion process.

[0044] Working principle of the present invention: The main problem solved by this embodiment is: by utilizing the intermittent cyclic moving workstation 3 and the lower mold 4, an automated forging system for the workpiece is realized, and the valve seat forging production can be carried out continuously and stably, solving the problem of low productivity of valve seats one by one. The workpiece is flipped by utilizing the ejection mechanism 8 and the clamping and flipping mechanism 9, and double-sided processing can be performed on the workpiece, ensuring that both sides of the workpiece are processed evenly, solving the problems of uneven thickness and shape deviation caused by single-sided processing, and there is no need to interrupt the production process for manual flipping or re-clamping, thereby improving the degree of automation of the production line.

[0045] The specific steps are as follows: Start the first motor 603 to drive the active dial 604 to rotate, the active dial 604 drives the driven groove wheel 605 to rotate intermittently, the driven groove wheel 605 drives the sprocket 601 to rotate intermittently, the sprocket 601 drives the chain 602 to move intermittently, thereby driving several stations 3 and the lower mold 4 to move intermittently and cyclically, and place the workpiece to be forged in the lower mold 4 on the upper side of the support plate 1, pause when the lower mold 4 moves to the lower side of the first reinforcement frame 5, and push the upper mold 701 and the U-shaped frame 702 to move downward through the extended end of the cylinder 7, insert the first slider 703 into the positioning groove 301 to correct the position of the station 3, ensure that the lower mold 4 is accurately located on the lower side of the upper mold 701, and then forge the workpiece. After forging is completed, the upper mold 701, the U-shaped frame 702, and the first slider 703 return to their original positions, and the station 3 and the lower mold 4 continue to move. It pauses when it moves to the lower side of the electric clamp 904. At this time, the eccentric wheel 802 is driven to rotate through the output end of the second motor 801, so that the eccentric wheel 802 pushes the top block 303 to move upward, thereby ejecting the workpiece in the lower mold 4. After the top block 303 ejects the workpiece to a certain height, the electric clamp 904 is controlled to clamp the workpiece, and then the slide 902 is driven to move upward by the electric push rod 905, and the slide 902 drives the electric clamp 904 to move upward to separate the workpiece from the lower mold 4. The electric clamp 904 is then driven to flip by the third motor 903 to flip the workpiece 180 degrees. After the workpiece is flipped over, the electric clamp 904 returns to its original position and releases the workpiece, and the workpiece returns to the lower mold 4. The flipped workpiece moves and continues to the lower side of the next reinforcement frame 5, and the flipped workpiece can be forged to achieve automated double-sided forging of the workpiece.

[0046] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A stop valve seat forging device, comprising a support plate (1), characterized in that: The inner wall of the support plate (1) is fixedly connected to the circulating track (2), and a plurality of workstations (3) are arranged around the support plate (1). The workstations (3) move cyclically under the limit of the circulating track (2), and each of the workstations (3) is fixedly connected to a lower mold (4). Two reinforcement frames (5) are fixedly connected to the upper side of the support plate (1), and the tops of the two reinforcement frames (5) are fixedly connected to a cylinder (7), and the extended ends of the two cylinders (7) are fixedly connected to an upper mold (701). A clamping and flipping mechanism (9) is arranged between the two reinforcement frames (5), and an ejection mechanism (8) is arranged at the lower side of the clamping and flipping mechanism (9). A grooved wheel conveying mechanism (6) is arranged on the support plate (1), and the intermittent cyclic movement of the plurality of workstations (3) is controlled by the grooved wheel conveying mechanism (6), so that each workstation (3) pauses after passing through the reinforcement frame (5) and the clamping and flipping mechanism (9), and the ejection mechanism (8) ejects the workpiece to cooperate with the clamping and flipping mechanism (9) for flipping; The grooved wheel conveying mechanism (6) comprises a sprocket (601), a chain (602), a first motor (603) and a driven grooved wheel (605); two sprockets (601) are provided and are both rotatably connected between the inner walls of the support plate (1); the chain (602) is transmission-connected between the two sprockets (601); the first motor (603) is fixedly connected to the side of the support plate (1); an active dial (604) is fixedly connected to the output end of the first motor (603); the driven grooved wheel (605) is fixedly connected to one of the sprockets (601); and the active dial (604) is meshed with the driven grooved wheel (605).

2. A stop valve seat forging device according to claim 1, characterized in that: Positioning grooves (301) are provided on both sides of each of the workstations (3), pulleys (302) are installed on both sides of the workstations (3), the pulleys (302) are rollingly connected to the surface of the circulating track (2), and an extension rod (305) is fixedly connected between the workstations (3) and the chain (602).

3. A stop valve seat forging device according to claim 2, characterized in that: The extended end of the cylinder (7) is fixedly connected to a U-shaped frame (702), a side wall of the reinforcement frame (5) is provided with a first slide groove (501), the U-shaped frame (702) is slidably connected in the first slide groove (501), and a first slider (703) is fixedly connected to the U-shaped frame (702) near the positioning groove (301), and the first slider (703) is slidably connected in the positioning groove (301).

4. A stop valve seat forging device according to claim 3, characterized in that: The ejection mechanism (8) comprises a second motor (801), an eccentric wheel (802), a limiting sleeve (803) and a straight rod (804); the second motor (801) is fixedly connected to a side of the support plate (1); the eccentric wheel (802) is fixedly connected to an output end of the second motor (801); the limiting sleeve (803) is fixedly connected to an inner wall of the support plate (1); the straight rod (804) is slidably connected inside the limiting sleeve (803); a second sliding block (805) is fixedly connected to the bottom of the straight rod (804); a second sliding groove (806) is provided on a side of the eccentric wheel (802) close to the second sliding block (805); and the second sliding block (805) is slidably connected inside the second sliding groove (806).

5. A stop valve seat forging device according to claim 4, characterized in that: A top block (303) is installed between the work station (3) and the lower mold (4). The top block (303) can slide through the lower mold (4). A spring (304) is sleeved on the circumferential surface of the top block (303). The straight rod (804) can move upward to eject the top block (303).

6. A stop valve seat forging device according to claim 5, characterized in that: The clamping and flipping mechanism (9) comprises a support frame (901), a slide seat (902), a third motor (903), an electric clamp (904) and an electric push rod (905), wherein the support frame (901) is fixedly connected to the upper side of the support plate (1), the slide seat (902) is slidably connected inside the support frame (901), the third motor (903) is fixedly connected to the side of the slide seat (902), the electric clamp (904) is fixedly connected to the output end of the third motor (903), the electric push rod (905) is fixedly connected to the lower inner wall of the support frame (901), and the extended end of the electric push rod (905) is fixedly connected to the slide seat (902).

7. A stop valve seat forging device according to claim 6, characterized in that: The circulating track (2) is symmetrically arranged on the inner wall of the support plate (1); four pulleys (302) are arranged on a side of each workstation (3) close to the circulating track (2); and the diameter of the end of the first sliding block (703) gradually decreases.

Images