Martensitic stainless steel heat treatment casting equipment and machining method

Abstract

The invention relates to martensitic stainless steel heat treatment casting equipment and a machining method, and belongs to the technical field of stainless steel machining.The casting equipment comprises a base plate, forging tables are arranged on the two sides of the base plate, a transmission box body is arranged between the forging tables on the two sides, and clamping turnover devices independent of each other are arranged on the two sides of the transmission box body respectively; the clamping and overturning devices on the two sides are matched with the corresponding forging tables correspondingly to form a plurality of forging stations, each clamping and overturning device comprises a driving shaft, the driving shafts are rotationally connected to a transmission box body, one end of each driving shaft extends into the transmission box body to serve as an extending end, the extending end is connected with a driven gear, the other end of each driving shaft is connected with a clamping jaw, and a rotating shaft is rotationally connected into the transmission box body. Worms are arranged on the peripheries of the two sides of the rotating shaft, worm wheels coupled with the worms are arranged on the inner side of the transmission box body, and a clutch mechanism is arranged between the rotating shaft and the driving shaft and used for connecting or disconnecting power transmission between the rotating shaft and the driving shaft. The method has the following advantage and effect that the forging efficiency of the blank can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of martensitic stainless steel processing, and in particular to martensitic stainless steel heat treatment casting equipment and a processing method. Background Art

[0002] Martensitic stainless steel is a type of stainless steel that obtains a martensitic structure through heat treatment, thus having higher strength and hardness. At present, in the processing technology of martensitic stainless steel, the process of combining heat treatment with forging is mainly used to process the blank to improve the final performance of martensitic stainless steel.

[0003] In the process of combining heat treatment and forging, the billet is generally forged by forging equipment and then annealed to eliminate stress in preparation for subsequent quenching and tempering. In order to prevent the billet from cracking during forging, a heating furnace is generally required to heat the billet so that the billet reaches a suitable forging temperature. In order to facilitate the flipping of the billet during the forging process, a motor is used to drive the clamp to rotate through a drive shaft to achieve the flipping of the billet clamped by the clamp, thereby reducing the difficulty of flipping the billet.

[0004] However, in actual use, it was found that due to the structure of the above-mentioned turning device, only a single forging station can be set when forging the billet, so there are certain limitations on the forging efficiency of the billet, thereby affecting the overall processing efficiency of martensitic stainless steel. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention aims to provide a martensitic stainless steel heat treatment casting equipment, which can improve the forging efficiency of the billet. Another object of the present invention is to provide a martensitic stainless steel heat treatment casting processing method.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a martensitic stainless steel heat treatment casting equipment, comprising a base plate, forging tables are arranged on both sides of the base plate, a transmission box is arranged between the forging tables on both sides, clamping and flipping devices independent of each other are arranged on both sides of the transmission box, and the clamping and flipping devices on both sides cooperate with the corresponding forging tables to form a plurality of forging stations, the clamping and flipping devices include a driving shaft, the driving shaft is rotatably connected to the transmission box, one end of the driving shaft extends into the transmission box as an extension end, the extension end is connected to a driven gear, and one end is connected to a clamping claw, a rotating shaft is rotatably connected in the transmission box, the rotating shaft is connected to a driving motor, the driving motor is used to drive the rotating shaft to rotate, worms are arranged on the outer periphery of both sides of the rotating shaft, a worm wheel coupled to the worm is arranged inside the transmission box, a clutch mechanism is arranged between the rotating shaft and the driving shaft, and the clutch mechanism is used to connect or disconnect the power transmission between the rotating shaft and the driving shaft so that the driving shafts on both sides can rotate independently.

[0007] The present invention is further configured as follows: the clutch mechanism includes a sliding rod that can slide horizontally, the sliding rod is located at one end facing the driven gear as a connecting end, the connecting end is provided with a driving gear, and the driving gear is slid by the sliding rod to engage or separate with the driven gear, the sliding rod is located at one end facing away from the driven gear and is provided with a return spring, one end of the return spring is fixed to the inner wall of the transmission case body, the top of the transmission case body is provided with an operating pin and a reset pin that are spaced apart from each other, the operating pin and the reset pin are both provided with a pushing portion, the sliding rod is provided with a first trapezoidal groove and a second trapezoidal groove corresponding to the operating pin and the reset pin, a locking groove extending in a horizontal direction and connected to the first trapezoidal groove is provided below the first trapezoidal groove, the pushing portion of the operating pin and the pushing portion of the reset pin slide along the inclined surfaces of the first trapezoidal groove and the second trapezoidal groove respectively to push the sliding rod to slide.

[0008] The present invention is further configured as follows: the connecting end is a columnar structure, a coupling seat is provided on the outer periphery of the connecting end, a through hole is provided in the coupling seat, a pressure spring is provided in the through hole, steel balls are fixed at both ends of the pressure spring, a wedge block is provided on the inner wall of the worm gear, there are multiple wedge blocks and they are evenly distributed around the circumference, coupling grooves for coupling of steel balls are formed between adjacent wedge blocks, and the steel balls slide through the sliding rod to enter or leave the coupling grooves.

[0009] The present invention is further configured as follows: the drive motor is installed on the top of the transmission case, the output end of the drive motor extends into the transmission case and is connected to a driving bevel gear, a driven bevel gear is sleeved on the outer periphery of the rotating shaft, and the driven bevel gear can mesh with the driving bevel gear.

[0010] The present invention is further configured as follows: the forging table includes a frame, the frame is connected to a retractable lifting column, the bottom end of the lifting column is connected to a forging body, the bottom of the forging body is connected to a hammer, a support seat opposite to the hammer is provided below the hammer, the outer periphery of the forging body is connected to a guide column, and the guide columns are multiple and evenly distributed around the forging body.

[0011] The present invention is further configured as follows: a slide is provided at the bottom of the forging table, the bottom end of the guide column and the support seat are respectively fixed to the slide, the base plate is symmetrically provided with slide rails, the slide is coupled to the slide rails, and can slide along the slide rails, a through-going clearance opening is provided on the slide, the support seat is adapted to the clearance opening and passes through the clearance opening, a downwardly recessed slide groove is provided on the base plate, a pulley is connected to the bottom of the support seat, the pulley is coupled to the slide groove, and a sliding fit between the two can be formed.

[0012] The present invention also provides a processing method for heat treatment casting of martensitic stainless steel, using the above-mentioned casting equipment, comprising the following steps: S1: heating the blank to forging temperature; S2: placing the heated blanks on the support seats in the forging stations on both sides respectively, and supporting them by the support seats; S3: The forging table is driven by the slide in each forging station to move toward the corresponding clamping and turning device, and the clamping claws in the clamping and turning device clamp and limit the blank; S4: forging the blank supported by the support seat by reciprocating the hammers in each forging station; S5: driving the forging table away from the corresponding clamping and turning device through the slide table, so that a sufficient distance is left between the forging table and the clamping and turning device; S6: Press the operating pin to drive the blank to flip; S7: Press the reset pin to maintain the forging surface of the blank and cycle to S3.

[0013] Compared with the prior art, the present invention has the following beneficial effects: Since independent clamping and turning devices are arranged on both sides of the transmission box, based on this design, forging tables can be arranged on both sides of the base plate, so that the clamping and turning devices on both sides can cooperate with the corresponding forging tables respectively to form multiple forging stations. Therefore, the technical problem that the forging efficiency of the billet in a single forging station in the prior art has certain limitations can be effectively solved, thereby improving the forging efficiency of the billet, and the clamping and turning devices on both sides are independent of each other, so that the billet can be clamped and turned separately according to the forging conditions of the billet in each forging station to adjust the forging surface of the billet. Therefore, the clamping and turning devices on both sides do not need to rotate synchronously, so as to better adapt to the forging rhythm of the billet in each forging station, thereby improving the forging efficiency of the billet while ensuring the forging quality of the billet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the relationship between the clamping jaws and the forging table in the present invention; Figure 3 It is a schematic diagram of the partial internal structure of the transmission box in the present invention; Figure 4 It is a partial enlarged structural schematic diagram of the forging table in the present invention; Figure 5 It is a schematic diagram of the matching relationship when the driving gear is not meshed with the driven gear in the present invention; Figure 6 It is a schematic diagram of the matching relationship between the driving gear and the driven gear when they are meshed in the present invention; Figure 7 It is a schematic diagram of the structural relationship when the steel ball is pressed against the coupling groove in the present invention; Figure 8 It is a schematic diagram of the connection relationship between the return spring and the transmission housing in the present invention. In the figure: base plate 1, slide slot 101, frame 21, lifting column 22, forging body 23, hammer 24, support seat 25, guide column 26, transmission box 3, through slot 31, drive shaft 41, driven gear 42, clamping claw 43, worm 44, worm wheel 45, mounting end 451, drive motor 5, rotating shaft 6, slide rod 471, connecting end 471a, first trapezoidal slot 471b, second trapezoidal slot 471c, Locking groove 471d, driving gear 472, return spring 473, operating pin 474, return pin 475, pushing part 476, coupling seat 477, top pressure spring 478, steel ball 479, wedge block 480, driving bevel gear 7, driven bevel gear 8, slide 9, give way opening 91, slide rail 10, pulley 11, connecting seat 12, opening 121, return spring 122, forging station 100. DETAILED DESCRIPTION

[0015] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0017] like Figure 1 and Figure 2 As shown, the present invention discloses a martensitic stainless steel heat treatment casting equipment, including a base plate 1, the base plate 1 is a horizontal bearing platform, forging tables are symmetrically arranged on both sides of the base plate 1, the forging table includes a frame 21, the frame 21 is connected with a retractable lifting column 22, driven by hydraulic or electric means, and vertically installed on the frame 21, the bottom end of the lifting column 22 is connected with a forging body 23, the bottom of the forging body 23 is connected with a hammer 24 for applying pressure to the blank, and a support seat 25 opposite to the hammer 24 is provided below the hammer 24, the forging body 23 is driven to rise and fall by the lifting column 22, and the hammer 24 can be driven to repeatedly forge the blank supported by the support seat 25, and in the process of repeated forging of the hammer 24, the guide column 26 arranged on the outer periphery of the forging body 23 can guide the lifting and lowering of the lifting column 22 to ensure the vertical movement stability, the above-mentioned forging tables are all existing technologies, so no more details are given.

[0018] In this embodiment, a transmission box 3 is provided between the forging tables on both sides, and clamping and turning devices independent of each other are provided on both sides of the transmission box 3. The clamping and turning devices on both sides cooperate with the corresponding forging tables to form a plurality of forging stations 100, thereby improving the forging efficiency of the billet, and the clamping and turning devices on both sides are independent of each other, so that the billet can be clamped and turned respectively according to the forging conditions of the billet in each forging station 100 to adjust the forging surface of the billet. Therefore, the clamping and turning devices on both sides do not need to rotate synchronously, so that they can better adapt to the forging rhythm of the billet in each forging station 100, thereby improving the forging efficiency of the billet while ensuring the forging quality of the billet.

[0019] like Figure 3and Figure 4 as well as Figure 5 As shown, the clamping and flipping device includes a driving shaft 41, a bearing seat is installed on the transmission housing 3, and a bearing is installed in the bearing seat, so that the driving shaft 41 can be rotatably connected to the transmission housing 3 through the bearing, and one end of the driving shaft 41 extends into the transmission housing 3 as an extended end, and the extended end is connected to a driven gear 42 that cooperates with the driving gear 472 described below, and the other end of the extended end is connected to a clamping claw 43 for clamping the blank, that is, the connecting rods on both sides are driven to move by the extension and retraction of the output end of the cylinder body, thereby driving the clamping blocks on both sides to move toward or away from each other, thereby achieving clamping or releasing of the object, and the clamping claw can adopt the existing structure. Similarly, the rotating shaft 6 is rotatably connected to the transmission housing 3 through a bearing, and the driving motor 5 is used to drive the rotating shaft 6 to rotate. A worm 44 is provided on the outer periphery of both sides of the rotating shaft 6, and a worm wheel 45 coupled to the worm 44 is provided on the inner side of the transmission housing 3. A clutch mechanism is provided between the rotating shaft 6 and the driving shaft 41, and the clutch mechanism is used to connect or disconnect the power transmission between the rotating shaft 6 and the driving shaft 41, so that the driving shafts 41 on both sides can rotate independently. It should be noted that the clamp adopts the conventional forging special clamp in the forging field to adapt to the high temperature generated during forging and ensure stable clamping of the object. That is, a high-temperature resistant material with low thermal conductivity (such as ceramic fiber, graphite, zirconia, etc.) can be used as a heat insulation layer on the surface where the clamp block contacts the object or inside the clamp to directly reduce the conduction of heat to the cylinder body and protect the internal structure.

[0020] Specifically, protruding mounting ends 451 are provided on both sides of the worm wheel 45, and a connecting seat 12 is provided in the transmission housing 3. The inner wall of the connecting seat 12 is provided with an embedding groove, which is used to nest the corresponding bearing, so that the mounting end 451 can be nested in the bearing to realize the rotational connection of the worm wheel 45 and ensure the stability of the installation of the worm wheel 45. In addition, an opening 121 is provided on the connecting seat 12 for partially extending the worm wheel 45, so as to facilitate the engagement of the worm wheel 45 with the worm 44.

[0021] like Figures 4 to 8 As shown, the clutch mechanism includes a horizontally slidable slide bar 471, which is horizontally arranged in the transmission housing 3, and one end of the slide bar 471 facing the driven gear 42 is used as a connecting end 471a, and a driving gear 472 is fixed to the connecting end 471a. Through the horizontal sliding of the slide bar 471, the driving gear 472 can be engaged with or separated from the driven gear 42; A return spring 473 is provided between the other end of the slide bar 471 located at the connection end 471a and the inner wall of the transmission case 3, wherein one end of the return spring 473 is fixed to the end face of the slide bar 471, and the other end is fixed to the inner wall of the transmission case 3. Specifically, a corresponding through groove 31 is provided on the inner wall of the transmission case 3, and one end of the return spring 473 is fixed to the bottom of the through groove 31. Such a design can provide a longer expansion space for the return spring 473, ensuring that the return spring 473 can generate sufficient elastic force when compressed, so as to drive the slide bar 471 to reset; An operating pin 474 and a reset pin 475 are provided at the top of the transmission housing 3 and are arranged at intervals and extend into the transmission housing 3. A pushing portion 476 is provided on the operating pin 474 and the reset pin 475. A switch for easy pressing is fixed to the top of the operating pin 474 and the reset pin 475, and a return spring 122 is fixed between the corresponding switch and the transmission housing 3. A first trapezoidal groove 471b and a second trapezoidal groove 471c corresponding to the operating pin 474 and the reset pin 475 are provided on the slide bar 471, respectively. A locking groove 471d extending in the horizontal direction and communicating with the first trapezoidal groove 471b is provided below 471b. The pushing portion 476 of the operating pin 474 and the pushing portion 476 of the reset pin 475 slide along the inclined surfaces of the first trapezoidal groove 471b and the second trapezoidal groove 471c respectively to push the slide bar 471 to slide. In this way, when it is necessary to transmit the power of the driving motor 5 from the rotating shaft 6 to the driving shaft 41, the operating pin 474 is pressed to move downward. During the downward movement of the operating pin 474, The pushing portion 476 can slide along the inclined surface of the first trapezoidal groove 471b until the operating pin 474 is pressed down into place, so that the sliding rod 471 can be pushed to move in the direction close to the worm gear 45, so that the driving gear 472 can mesh with the driven gear 42. In this way, the worm gear 45 rotating with the worm 44 can transmit power to the sliding rod 471 to drive the sliding rod 471 to rotate, thereby enabling the driving gear 472 to rotate, and then driving the transmission gear to rotate, realizing the rotation of the drive shaft 41. When the sliding rod 471 moves close to the worm gear 45, the driving gear 472 can be engaged with the driven gear 42. When the operating pin 474 is released, the return spring 473 is stretched. At this time, when the operating pin 474 is released, the return spring 473 can drive the slide bar 471 to slide toward the pushing portion 476 of the operating pin 474, so that the pushing portion 476 of the operating pin 474 can be inserted into the locking groove 471d to lock the operating pin 474, thereby limiting the horizontal sliding of the slide bar 471 to prevent the slide bar 471 from malfunctioning, thereby ensuring the stability of the meshing between the driving gear 472 and the driven gear 42, so as to facilitate the stable transmission of power; The second trapezoidal groove 471c does not have the structure of the locking groove 471d in the first trapezoidal groove 471b. Therefore, after the reset pin 475 is reset, the reset spring 122 connected to the operating pin 474 can drive the reset pin 475 to rise and reset, thereby preventing the operating pin 474 and the locking groove 471d from being disengaged. The reset pin 475 limits the horizontal sliding of the slide bar 471, so that under the action of the previously stretched reset spring 473, the slide bar 471 can be reset, so that the driving gear 472 and the driven gear 42 can be disengaged to cut off the power. In summary, only by manipulating the operating pin 474 and the reset pin 475 in each clamping and flipping device, each clamping and flipping device can be rotated independently. Therefore, in this scheme, only a transmission structure needs to be set up, so that a single drive motor 5 can control the two clamping and flipping devices to rotate independently, and there is no need to equip the clamping and flipping devices with a drive motor 5 respectively, which can effectively reduce the overall manufacturing cost, and the above-mentioned transmission structure is a mechanical structure, which can reduce the debugging cost required for independent control using electrical components such as sensors.

[0022] In addition, the connecting end 471a is a columnar structure, one end of the connecting end 471a is also rotatably connected to the end of the slide rod 471 through a bearing, a coupling seat 477 is provided on the outer periphery of the connecting end 471a, a through hole is provided in the coupling seat 477, a top pressure spring 478 is nested in the through hole, steel balls 479 are fixed at both ends of the top pressure spring 478, and the steel balls 479 can extend from the through hole, a wedge-shaped block 480 is provided on the inner wall of the worm wheel 45, and the wedge-shaped blocks 480 are multiple and evenly distributed along the circumference, and coupling grooves for coupling the steel balls 479 are formed between adjacent wedge-shaped blocks 480, and when the slide rod 471 slides toward the worm wheel 45, the active When the gear 472 is meshed with the driven gear 42, the coupling seat 477 can slide toward the worm gear 45 following the slide rod 471. During the sliding process of the coupling seat 477, the steel ball 479 can contact the central inner wall of the worm gear 45 to push the top pressure spring 478 to be compressed. The force generated by the deformation of the top pressure spring 478 can make the steel ball 479 press tightly against the coupling groove. The friction force generated between the steel ball 479 and the inner wall of the worm gear 45 can drive the connecting end 471a to rotate when the worm gear 45 rotates. In this way, the worm gear 45 can transmit power to the slide rod 471 to drive the slide rod 471 to rotate.

[0023] In this embodiment, the drive motor 5 is further installed on the top of the transmission housing 3, so that the drive motor 5 and the drive shaft 41 are not arranged in the same plane, and the blank clamped by the clamping claw 43 is not interfered with when turning over. Specifically, the output end of the drive motor 5 extends into the transmission housing 3 and is connected to the driving bevel gear 7. The outer periphery of the rotating shaft 6 is provided with a driven bevel gear 8, and the driven bevel gear 8 can be meshed with the driving bevel gear 7. In this way, the driven bevel gear 8 can be meshed with the driving bevel gear 7, so that the vertical direction of rotation can be converted into the horizontal direction through the mutually meshing driven bevel gear 8 and the driving bevel gear 7. Therefore, the drive motor 5 can be installed on the top of the transmission housing 3, avoiding interference while driving the rotating shaft 6 normally.

[0024] In this embodiment, a slide 9 is provided at the bottom of the forging table. The slide 9 is a prior art, for example, driven by a lead screw or a linear motor. A slide rail 10 is symmetrically provided on the base plate 1. The slide 9 is coupled to the slide rail 10 and can slide along the slide rail 10. The bottom end of the guide column 26 and the support seat 25 are respectively fixed to the slide 9, so that the forging table can follow the sliding of the slide 9, approaching or moving away from the corresponding clamping and flipping device, so as to change the forging position of the hammer 24, so as to fully forge the clamped blank. When the blank needs to be flipped, the forging table can be moved away from the clamping and flipping device, so that sufficient space can be left between the forging table and the clamping and flipping device to facilitate the flipping of the blank. like Figure 4 As shown, the support seat 25 is not fixed to the slide 9. During the forging process, the support seat 25 is repeatedly hammered mainly by the hammer 24. This can avoid the generated force directly acting on the slide 9, causing the slide 9 to deform and affect the sliding stability of the slide 9. Specifically, a through-hole 91 is provided on the slide 9, and the support seat 25 is adapted to the through-hole 91 and passes through the through-hole 91. Through the setting of the through-hole 91, the support seat 25 can contact with the substrate 1, and the substrate 1 supports the support seat 25 to avoid the generated force directly acting on the slide 9. In the process of movement of the slide 9, the support seat 25 can be pushed to slide through the through-hole 91 adapted to the support seat 25, thereby ensuring that the support seat 25 and the hammer 24 slide at the same time. In addition, in the process of sliding of the support seat 25, the pulley 11 under the support seat 25 can slide along the slide groove 101 formed by the depression on the substrate 1 to guide the sliding of the support seat 25 and ensure that the sliding of the support seat 25 is stable. The pulley 11 is rotatably connected to a base fixed at the bottom of the support seat 25.

[0025] The operating principle of the present invention is as follows: First, the martensitic stainless steel billet is placed on the support seats 25 on both sides by an external heating device (such as a heating furnace) through an external manipulator, and then the slide 9 drives the forging table to slide toward the corresponding clamping and flipping device. After one end of the billet is clamped by the clamp 43, the billet is forged by the reciprocating lifting of the hammer 24. When it is necessary to flip the billet in any forging station 100 to adjust the forging surface of the billet, the slide 9 in the corresponding forging station 100 first drives the forging table away from the corresponding clamping and flipping device, so that a sufficient distance can be left between the forging table and the clamping and flipping device. , and then press the corresponding operating pin 474 in the corresponding clamping and flipping device to transmit the power of the drive motor 5 to the clamping and flipping device that needs to be rotated, so that the drive shaft 41 in the corresponding clamping and flipping device can be rotated, thereby driving the clamping claw 43 connected to the drive shaft 41 to rotate, so as to realize the flipping of the clamped blank. After the blank is flipped to a suitable angle, press the reset pin 475 to cut off the power between the drive shaft 41 and the rotating shaft 6, and then drive the forging table to slide toward the corresponding clamping and flipping device through the slide 9. Repeat this process to complete the forging of each side of the blank.

[0026] The present invention also discloses a processing method for heat treatment casting of martensitic stainless steel, which adopts the above-mentioned casting equipment and comprises the following steps: S1: heating the blank to forging temperature; S2: placing the heated blanks on the support seats 25 in the forging stations 100 on both sides, and supported by the support seats 25; S3: The slide table 9 in each forging station 100 drives the forging table to move toward the corresponding clamping and flipping device, and the clamping claw 43 in the clamping and flipping device clamps and limits the blank; S4: The hammers 24 in each forging station 100 are reciprocated and lifted to forge the blank supported by the support seat 25; S5: driving the forging table away from the corresponding clamping and flipping device through the slide 9, so that a sufficient distance is left between the forging table and the clamping and flipping device; S6: Press the operating pin 474 to drive the blank to flip; S7: Press the reset pin 475 to maintain the forging surface of the blank and cycle to S3.

[0027] Through this processing method, multiple billets can be forged simultaneously to improve the overall forging efficiency of the billets, and the corresponding operating switches and reset switches can be controlled according to the forging rhythm of the billets in each forging station 100 to achieve the connection and disconnection of power between the rotating shaft 6 and the driving shaft 41, ensuring that the billets in each forging station 100 can adjust the forging surfaces of their respective billets according to their respective forging rhythms to adapt to their respective forging rhythms and ensure the forging quality of the billets.

[0028] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A martensitic stainless steel heat treatment casting equipment, characterized in that: It includes a base plate, forging tables are provided on both sides of the base plate, a transmission box is provided between the forging tables on both sides, clamping and turning devices independent of each other are respectively provided on both sides of the transmission box, the clamping and turning devices on both sides cooperate with the corresponding forging tables to form a plurality of forging stations, the clamping and turning device includes a driving shaft, the driving shaft is rotatably connected to the transmission box, one end of the driving shaft extends into the transmission box as an extended end, the extended end is connected with a driven gear, and the other end is connected with a clamping claw, a rotating shaft is rotatably connected inside the transmission box, the rotating shaft is connected with a driving motor, the driving motor is used to drive the rotating shaft to rotate, worms are provided on the outer periphery of both sides of the rotating shaft, a worm wheel coupled with the worm is provided on the inside of the transmission box, a clutch mechanism is provided between the rotating shaft and the driving shaft, the clutch mechanism is used to connect or disconnect the power transmission between the rotating shaft and the driving shaft so that the driving shafts on both sides can rotate independently.

2. The martensitic stainless steel heat treatment casting equipment according to claim 1, characterized in that: The clutch mechanism includes a sliding rod that can slide horizontally, and the sliding rod is located at one end facing the driven gear as a connecting end, and the connecting end is provided with a driving gear, and the driving gear is slid by the sliding rod to engage or separate with the driven gear. The sliding rod is located at one end facing away from the driven gear and is provided with a return spring, and one end of the return spring is fixed to the inner wall of the transmission case body, and the top of the transmission case body is provided with an operating pin and a reset pin that are spaced apart from each other, and the operating pin and the reset pin are both provided with a pushing portion, and the sliding rod is provided with a first trapezoidal groove and a second trapezoidal groove corresponding to the operating pin and the reset pin, and a locking groove extending in a horizontal direction and connected to the first trapezoidal groove is provided below the first trapezoidal groove, and the pushing portion of the operating pin and the pushing portion of the reset pin slide along the inclined surfaces of the first trapezoidal groove and the second trapezoidal groove respectively to push the sliding rod to slide.

3. The martensitic stainless steel heat treatment casting equipment according to claim 2, characterized in that: The connecting end is a columnar structure, a coupling seat is provided on the outer periphery of the connecting end, a through hole is provided in the coupling seat, a pressure spring is provided in the through hole, steel balls are fixed at both ends of the pressure spring, a wedge-shaped block is provided on the inner wall of the worm gear, there are multiple wedge-shaped blocks and they are evenly distributed around the circumference, coupling grooves for coupling of steel balls are formed between adjacent wedge-shaped blocks, and the steel balls slide through the sliding rod to enter or leave the coupling grooves.

4. The martensitic stainless steel heat treatment casting equipment according to claim 1, characterized in that: The driving motor is installed on the top of the transmission box, the output end of the driving motor extends into the transmission box and is connected with a driving bevel gear, the outer periphery of the rotating shaft is sleeved with a driven bevel gear, and the driven bevel gear can mesh with the driving bevel gear.

5. The martensitic stainless steel heat treatment casting equipment according to claim 1, characterized in that: The forging table includes a frame, the frame is connected to a retractable lifting column, the bottom end of the lifting column is connected to a forging body, the bottom of the forging body is connected to a hammer, a support seat opposite to the hammer is provided below the hammer, and the outer periphery of the forging body is connected to a guide column, and the guide columns are multiple and evenly distributed around the forging body.

6. The martensitic stainless steel heat treatment casting equipment according to claim 5, characterized in that: A slide is provided at the bottom of the forging table, the bottom end of the guide column and the support seat are respectively fixed to the slide, the base plate is symmetrically provided with slide rails, the slide is coupled to the slide rails and can slide along the slide rails, a through-hole is provided on the slide, the support seat is adapted to the hole and passes through the hole, a downwardly recessed slide groove is provided on the base plate, a pulley is connected to the bottom of the support seat, the pulley is coupled to the slide groove, and a sliding fit between the two can be formed.

7. A method for heat treatment casting of martensitic stainless steel, characterized in that: A casting device according to any one of the above claims comprises the following steps: S1: heating the blank to forging temperature; S2: placing the heated blanks on the support seats in the forging stations on both sides respectively, and supporting them by the support seats; S3: The forging table is driven by the slide in each forging station to move toward the corresponding clamping and turning device, and the clamping claws in the clamping and turning device clamp and limit the blank; S4: forging the blank supported by the support seat by reciprocating the hammers in each forging station; S5: driving the forging table away from the corresponding clamping and turning device through the slide table, so that a sufficient distance is left between the forging table and the clamping and turning device; S6: Press the operating pin to drive the blank to flip; S7: Press the reset pin to maintain the forging surface of the blank and cycle to S3.

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