Large-size ring forge piece forming device and technology thereof

Abstract

The invention relates to the field of ring forging, and discloses a large-size ring forging forming device which comprises a bottom plate and an annular forging, a ring rolling control mechanism is arranged on the front side of the upper surface of the bottom plate, a ring rolling mechanism is arranged on the rear side of the upper surface of the bottom plate, and the ring rolling mechanism comprises a mounting base fixed to the upper surface of the bottom plate; three extending plates are evenly arranged on the periphery of the surface of the side, close to the ring rolling control mechanism, of the mounting base, a fixing bolt is arranged in the center of the surface of the ring rolling mechanism, two rail rods are symmetrically arranged between each extending plate and the fixing bolt, and sliding blocks are slidably mounted on the surfaces of the two rail rods in the same group. Rollers are rotationally installed on the surfaces of the sliding blocks, sliding sleeves are slidably installed on the surfaces of the fixing bolts, synchronous extrusion and external expansion are conducted on the ring piece through the three rollers capable of synchronously moving, the ring piece is driven to rotate at a high speed, it is guaranteed that the ring piece is evenly stressed in the machining process, the problems of eccentricity or insufficient roundness and the like are solved, and the forming quality is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of ring forging, in particular to a large-size ring forging forming device and a process thereof. Background Art

[0002] Ring forgings, also known as ring forgings, are an important product type in the forging industry. Ring forgings are usually produced using the ring rolling process in the forging process. First, the raw materials (such as steel, aluminum alloy, etc.) are heated to a suitable forging temperature. Then, the raw materials are gradually deformed in the mold through equipment such as a press to form a ring-shaped blank. Then, the blank is further processed and finished, including cutting, heat treatment, etc., to improve the dimensional accuracy and performance of the ring forging.

[0003] Large-sized ring forgings are mostly formed by hot rolling. In the prior art, large-sized ring forgings are processed by rolling the workpiece by extrusion of a roller on one side. However, the accuracy cannot be precisely controlled, the roundness is poor, and eccentricity is prone to occur. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a large-size ring forging forming device and a process thereof, which solves the problem of insufficient roundness during large-size ring forging.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: a large-size ring forging forming device, comprising a base plate and a ring forging, a ring rolling control mechanism is arranged on the front side of the upper surface of the base plate, and a ring rolling mechanism is arranged on the rear side of the upper surface of the base plate, the ring rolling mechanism comprises a mounting seat fixed on the upper surface of the base plate, three extension plates are evenly arranged on the periphery of the surface of one side of the mounting seat close to the ring rolling control mechanism, a fixing bolt is arranged at the center of the surface of the ring rolling mechanism, two track rods are symmetrically arranged between each of the extension plates and the fixing bolt, sliders are slidably installed on the surfaces of two track rods in the same group, rollers are rotatably installed on the surfaces of the sliders, a sliding sleeve is slidably installed on the surface of the fixing bolt, three connecting rods are evenly hinged on the surface of the sliding sleeve, and the ends of the connecting rods facing away from the sliding sleeve are respectively hinged on the three sliders, the ring forging is installed on the outside of the three rollers, and a size control mechanism is arranged on the upper side of the ring rolling mechanism close to the ring rolling control mechanism, one of the sliders slides vertically, and the size control mechanism is placed directly above the vertically sliding slider.

[0006] Furthermore, the ring rolling control mechanism includes a fixing seat fixed on the upper surface of the bottom plate, a mounting tube is arranged on the top of the fixing seat, and a hydraulic cylinder A is fixed inside the mounting tube.

[0007] Furthermore, an extrusion cylinder is installed at the output end of the hydraulic cylinder A, the end of the extrusion cylinder is open, the fixing bolt is matched with the opening size of the end of the extrusion cylinder, and the extrusion cylinder axially extrudes the sliding sleeve.

[0008] Furthermore, a spring is sleeved on the surface of the fixing bolt, and the spring is placed between the sliding sleeve and the mounting seat.

[0009] Furthermore, an inner groove is vertically opened on the surface of one side of the ring rolling mechanism, and the inner groove corresponds to the vertically sliding slider, and a vertical plate is vertically fixed on the top of the mounting seat.

[0010] Furthermore, the size control mechanism includes a hydraulic cylinder B fixed on the front side surface of the vertical plate and a lifting block sliding on the surface of the vertical track rod, and the output shaft of the hydraulic cylinder B passes through the top track rod and is fixed on the lifting block.

[0011] Furthermore, a rotating motor is fixedly installed on the rear side of the lifting block, the rotating motor is placed inside the inner groove, a power roller is installed at the output end of the rotating motor, and the power roller is placed directly above the annular forging.

[0012] Furthermore, a rear limit plate is provided on the rear side of the power roller surface, and the rear limit plate limits the rear side of the annular forging. A slideway is provided inside the power roller, and open grooves are symmetrically provided on the power roller surface along the axis, and both of the open grooves are connected to the interior of the slideway. A pitch-adjusting screw is rotatably installed inside the slideway, and a hexagonal head is provided on the end of the pitch-adjusting screw, and the hexagonal head is flush with the end face of the power roller.

[0013] Furthermore, a front movable plate is slidably mounted on the surface of the power roller, the front movable plate passes through the open slot and extends toward the center, a moving block is screwed on the surface of the pitch-adjusting screw, and an extension of the front movable plate is mounted on the moving block by bolts.

[0014] A large-size ring forging forming process comprises the following steps: Steps: Install the punched rough ring on the outside of the three rollers, then drive the extrusion cylinder to move through the hydraulic cylinder A, and put it on the fixing bolt to move the sliding sleeve backward. At this time, the workpiece can be expanded outward through the three rollers; Steps: The lifting block is driven downward by the size control mechanism until the power roller contacts the outer surface of the ring, and the power roller is controlled to rotate by the rotary motor to drive the ring to rotate around the three rollers; Steps: Rotate the hexagon socket head according to the required size to adjust the distance between the front movable plate and the rear limit plate so that the ring can only be placed between the front movable plate and the rear limit plate.

[0015] The present invention provides a large-size ring forging forming device and process thereof, which has the following beneficial effects: 1. The present invention uses three synchronously movable rollers to synchronously extrude and expand the ring, and drives the ring to rotate at high speed, so as to ensure that the ring is evenly stressed during the processing, prevent problems such as eccentricity or insufficient roundness, and ensure the molding quality.

[0016] 2. The present invention can control the extrusion force of the ring by setting a size control mechanism on the top, and then control the thickness of the ring. At the same time, it can drive the ring to rotate at a high degree. The power roller and one of the rollers are installed on the same slide bar to ensure the accuracy of the ring forming.

[0017] 3. In the present invention, two limiting plates are arranged on the surface of the power roller to limit the ring, and then the thickness of the ring is controlled by controlling the distance between the limiting plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the ring rolling mechanism of the present invention; Figure 3 It is a rear view structural schematic diagram of the ring rolling control mechanism of the present invention; Figure 4 For the present invention Figure 1 A schematic diagram of the enlarged structure of area A; Figure 5 It is a schematic diagram of the three-dimensional structure of the size control mechanism of the present invention; Figure 6 It is a schematic diagram of the horizontal top-sectional structure of the power roller of the present invention.

[0019] Among them, 1. bottom plate; 2. ring rolling control mechanism; 201. fixed seat; 202. mounting cylinder; 203. hydraulic cylinder A; 204. extrusion cylinder; 3. ring rolling mechanism; 301. mounting seat; 302. extension plate; 303. track rod; 304. slider; 305. roller; 306. fixing bolt; 307. sliding sleeve; 308. connecting rod; 309. spring; 310. inner groove; 311. vertical plate; 4. size control mechanism; 401. hydraulic cylinder B; 402. lifting block; 403. rotating motor; 404. power roller; 405. rear limit plate; 406. slideway; 407. open slot; 408. pitch adjusting screw; 409. inner hexagon head; 410. moving block; 411. front movable plate; 5. ring forging. DETAILED DESCRIPTION

[0020] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. 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. Example 1

[0021] Please refer to Figure 1 and Figure 2 As shown, an embodiment of the present invention provides a large-size ring forging forming device, including a base plate 1 and a ring forging 5. The base plate 1 can be fixed to the ground by bolts, a ring rolling control mechanism 2 is arranged on the front side of the upper surface of the base plate 1, and a ring rolling mechanism 3 is arranged on the rear side of the upper surface of the base plate 1. The ring rolling mechanism 3 includes a mounting seat 301 fixed on the upper surface of the base plate 1, and three extension plates 302 are evenly arranged on the outer periphery of the surface of one side of the mounting seat 301 close to the ring rolling control mechanism 2. The three extension plates 302 are at the same distance from the center of the mounting seat 301. A fixing bolt 306 is arranged at the center of the surface of the ring rolling mechanism 3, and two track rods 303 are symmetrically arranged between each extension plate 302 and the fixing bolt 306. Slide blocks 304 are slidably installed on the surfaces of the two track rods 303 in the same group. The slide blocks 304 can slide along the track rods 303 to adjust the sliders. The distance between 304 and the fixed bolt 306, a roller 305 is rotatably installed on the surface of the slider 304, a sleeve 307 is slidably installed on the surface of the fixed bolt 306, three connecting rods 308 are evenly hinged on the surface of the sleeve 307, and the ends of the connecting rods 308 away from the sleeve 307 are respectively hinged on the three sliders 304. The three rollers 305 can be driven to move synchronously through the cooperation of the sleeve 307 and the connecting rod 308, and the moving distances are equal. The connecting lines of the three rollers 305 constitute the inscribed triangle of the annular forging 5, and the annular forging 5 is installed on the outside of the three rollers 305. A size control mechanism 4 is arranged above the side of the ring rolling mechanism 3 close to the ring rolling control mechanism 2, one of the sliders 304 slides vertically, and the size control mechanism 4 is placed directly above the vertically sliding slider 304 to control the thickness and width of the ring forging 5. Example 2

[0022] Please refer to Figure 1 and Figure 3As shown, the ring rolling control mechanism 2 includes a fixed seat 201 fixed on the upper surface of the base plate 1, a mounting cylinder 202 is arranged on the top of the fixed seat 201, a hydraulic cylinder A203 is fixed on the inner side of the mounting cylinder 202, an extrusion cylinder 204 is installed on the output end of the hydraulic cylinder A203, and the end of the extrusion cylinder 204 is open. When loading and unloading, the extrusion cylinder 204 is separated from the fixing bolt 306 to load and unload through the gap between the two. The fixing bolt 306 is adapted to the open size of the end of the extrusion cylinder 204, and the extrusion cylinder 204 axially extrude the sliding sleeve 307. When working, the sliding sleeve 307 can be extruded by the extrusion cylinder 204. The expansion speed of the ring forging 5 is affected by the moving distance of the sliding sleeve 307, and the expansion speed is also affected by the material of the ring forging.

[0023] The temperatures for ring forging of different materials are as follows: Low carbon steel: 1150℃-1250℃; Medium carbon steel: 1100℃-1200℃; Alloy structural steel: 1100℃-1150℃; 304 stainless steel: 1150℃-1200℃; Deformed aluminum alloy: 400℃-500℃; Cast aluminum alloy: 350℃-450℃; Titanium alloy: 850℃-1050℃.

[0024] Please refer to Figure 2 As shown, a spring 309 is sleeved on the surface of the fixing bolt 306, and the spring 309 is placed between the sliding sleeve 307 and the mounting seat 301. The elastic force of the spring 309 ensures that the sliding sleeve 307 is always subjected to an outward force, and then the three rollers 305 are all placed in the center position when no force is applied.

[0025] Please refer to Figure 2 , Figure 4 and Figure 5 As shown, an inner groove 310 is vertically opened on the surface of one side of the ring rolling mechanism 3, and the inner groove 310 corresponds to the vertically sliding slider 304. The inner groove 310 is opened along the vertically arranged track rod 303, and a vertical plate 311 is vertically fixed on the top of the mounting seat 301. The size control mechanism 4 includes a hydraulic cylinder B401 fixed on the front surface of the vertical plate 311 and a lifting block 402 sliding on the surface of the vertical track rod 303, wherein the hydraulic cylinder B401 is suspended, and the output shaft of the hydraulic cylinder B401 passes through the top track rod 303 and is fixed on the lifting block 402, so as to drive the lifting block 402 to move up and down through the hydraulic cylinder B401.

[0026] Please refer to Figure 5As shown, a rotating motor 403 is fixedly installed on the rear side of the lifting block 402, and the rotating motor 403 is placed inside the inner groove 310. A power roller 404 is installed at the output end of the rotating motor 403, and the power roller 404 is placed directly above the annular forging 5. The rotating motor 403 can drive the power roller 404 to rotate, and then drive the annular forging 5 to rotate, and the thickness of the annular forging 5 can be controlled by controlling the height of the power roller 404.

[0027] Rolling speed refers to the peripheral speed of the power roller 404 in contact with the metal The calculation formula is ν = πDn / 60 Where ν is the rolling speed (m / s) D is the working diameter of the roller (m) n is the roller speed (r / min). Example 3

[0028] Please refer to Figure 5 and Figure 6 As shown, a rear limit plate 405 is provided on the rear side of the surface of the power roller 404, and the rear limit plate 405 limits the rear side of the annular forging 5 so that the annular forging 5 is placed in front of the rear limit plate 405. A slideway 406 is provided inside the power roller 404, and open grooves 407 are symmetrically provided on the surface of the power roller 404 along the axis. Both open grooves 407 are connected to the inside of the slideway 406, and a pitch adjusting screw 408 is rotatably installed inside the slideway 406, and a hexagonal head is provided at the end of the pitch adjusting screw 408. 409, the hexagonal head 409 is flush with the end face of the power roller 404, a front movable plate 411 is slidably installed on the surface of the power roller 404, the front movable plate 411 passes through the open slot 407 and extends toward the center, a moving block 410 is screwed on the surface of the pitch-adjusting screw 408, and an extended portion of the front movable plate 411 is installed on the moving block 410 by bolts, and the position of the front movable plate 411 can be controlled by rotating the pitch-adjusting screw 408 to control the distance between the front movable plate 411 and the rear limit plate 405, and the use can be manually operated regularly.

[0029] The pitch adjusting screw 408 can also be driven to rotate by a motor to realize automatic adjustment without stopping the machine during processing, thereby realizing the pressurization control of the width of the annular forging 5. The side where the rear limit plate 405 and the front movable plate 411 are close to each other can adopt a conical structure to form guided extrusion. Example 4

[0030] A large-size ring forging forming process comprises the following steps: Step 1: Install the punched rough ring on the outside of the three rollers 305, then drive the extrusion cylinder 204 to move through the hydraulic cylinder A203, and put it on the fixing bolt 306 to move the sliding sleeve 307 backward. At this time, the workpiece can be expanded outward by the three rollers 305, and the expansion speed is affected by the material and temperature. For example, the expansion speed of large-size aluminum alloy ring forging is usually about 5 mm to 20 mm per minute; Step 2: The lifting block 402 is driven downward by the size control mechanism 4 until the power roller 404 contacts the outer surface of the ring, and the power roller 404 is controlled to rotate by the rotary motor 403 to drive the ring to rotate around the three rollers 305, while extruding it to control its thickness; Step 3: Rotate the hexagon socket head 409 according to the required size to adjust the distance between the front movable plate 411 and the rear limit plate 405 so that the ring can only be placed between the front movable plate 411 and the rear limit plate 405 .

[0031] Working principle: When the material is not loaded, the spring 309 makes the sliding sleeve 307 have an outward force, and then the three sliders 304 are pulled to the center position through the hinged connecting rod 308, and then the distance between the three rollers 305 is reduced to facilitate the installation of the rough forging ring, and the hydraulic cylinder A203 is started to drive the extrusion cylinder 204 to move closer to the position of the ring rolling mechanism 3, and sleeve it on the surface of the fixing bolt 306, and the three rollers 305 are driven to expand outward by squeezing the sliding sleeve 307. , start the hydraulic cylinder B401 to drive the lifting block 402 to move downward, so that the rear limit plate 405 contacts the ring. At this time, start the rotating motor 403 to drive the power roller 404 to rotate, and then drive the ring to rotate. The thickness of the forged ring is controlled by controlling the distance between the power roller 404 and the uppermost roller 305. The diameter of the ring is controlled by controlling the distance between the three rollers 305. At the same time, the distance between the front movable plate 411 and the rear limit plate 405 is adjusted according to usage requirements to control the width of the ring.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-size ring forging forming device, comprising a base plate (1) and a ring forging (5), characterized in that: A ring rolling control mechanism (2) is arranged on the front side of the upper surface of the bottom plate (1), and a ring rolling mechanism (3) is arranged on the rear side of the upper surface of the bottom plate (1). The ring rolling mechanism (3) comprises a mounting seat (301) fixed on the upper surface of the bottom plate (1), three extension plates (302) are evenly arranged on the periphery of a surface of one side of the mounting seat (301) close to the ring rolling control mechanism (2), a fixing bolt (306) is arranged at the center of the surface of the ring rolling mechanism (3), two track rods (303) are symmetrically arranged between each of the extension plates (302) and the fixing bolt (306), and a slider (304) is slidably installed on the surface of the two track rods (303) in the same group. A roller (305) is rotatably mounted on the surface of the slider (304), a sleeve (307) is slidably mounted on the surface of the fixing bolt (306), three connecting rods (308) are evenly hinged on the surface of the sleeve (307), one end of the connecting rod (308) away from the sleeve (307) is hinged on the three sliders (304), the annular forging (5) is mounted on the outside of the three rollers (305), a size control mechanism (4) is arranged above the side of the ring rolling mechanism (3) close to the ring rolling control mechanism (2), one of the sliders (304) slides vertically, and the size control mechanism (4) is placed directly above the slider (304) that slides vertically.

2. A large-size ring forging forming device according to claim 1, characterized in that: The ring rolling control mechanism (2) comprises a fixing seat (201) fixed on the upper surface of the bottom plate (1), a mounting cylinder (202) being arranged on the top of the fixing seat (201), and a hydraulic cylinder A (203) being fixed inside the mounting cylinder (202).

3. A large-size ring forging forming device according to claim 2, characterized in that: An extrusion cylinder (204) is installed at the output end of the hydraulic cylinder A (203), the end of the extrusion cylinder (204) is open, the fixing bolt (306) is matched with the size of the open end of the extrusion cylinder (204), and the extrusion cylinder (204) axially extrudes the sliding sleeve (307).

4. A large-size ring forging forming device according to claim 3, characterized in that: A spring (309) is sleeved on the surface of the fixing bolt (306), and the spring (309) is placed between the sliding sleeve (307) and the mounting seat (301).

5. A large-size ring forging forming device according to claim 1, characterized in that: An inner groove (310) is vertically formed on one side surface of the ring rolling mechanism (3), the inner groove (310) corresponds to a vertically sliding slider (304), and a vertical plate (311) is vertically fixed on the top of the mounting seat (301).

6. A large-size ring forging forming device according to claim 5, characterized in that: The size control mechanism (4) comprises a hydraulic cylinder B (401) fixed on the front side surface of the vertical plate (311) and a lifting block (402) sliding on the surface of the vertical track rod (303); the output shaft of the hydraulic cylinder B (401) passes through the top track rod (303) and is fixed on the lifting block (402).

7. A large-size ring forging forming device according to claim 6, characterized in that: A rotating motor (403) is fixedly mounted on the rear side of the lifting block (402), the rotating motor (403) is placed inside the inner groove (310), a power roller (404) is mounted on the output end of the rotating motor (403), and the power roller (404) is placed directly above the annular forging (5).

8. A large-size ring forging forming device according to claim 7, characterized in that: A rear limit plate (405) is provided on the rear side of the surface of the power roller (404), and the rear limit plate (405) limits the rear side of the annular forging (5). A slideway (406) is provided inside the power roller (404), and open grooves (407) are symmetrically provided on the surface of the power roller (404) along the axis, and both of the open grooves (407) are connected to the inside of the slideway (406). A pitch-adjusting screw (408) is rotatably installed at the center of the slideway (406), and an inner hexagon head (409) is provided at the end of the pitch-adjusting screw (408), and the inner hexagon head (409) is flush with the end face of the power roller (404).

9. A large-size ring forging forming device according to claim 8, characterized in that: A front movable plate (411) is slidably mounted on the surface of the power roller (404), the front movable plate (411) penetrates the open slot (407) and extends toward the center, a moving block (410) is screwed on the surface of the pitch-adjusting screw (408), and an extension of the front movable plate (411) is mounted on the moving block (410) by means of bolts.

10. A large-size ring forging forming process, using any one of the forming devices described in Claims 1 to 9, characterized in that: The following steps are also included: Step 1: The punched rough ring is mounted on the outside of the three rollers (305), and then the extrusion cylinder (204) is driven by the hydraulic cylinder A (203) to move and is sleeved on the fixing bolt (306) to move the sliding sleeve (307) backward. At this time, the workpiece can be expanded outward by the three rollers (305); Step 2: The size control mechanism (4) drives the lifting block (402) to move downward until the power roller (404) contacts the outer surface of the ring, and the power roller (404) is controlled to rotate by the rotary motor (403) to drive the ring to rotate around the three rollers (305); Step 3: Rotate the hexagon socket head (409) according to the required size to adjust the distance between the front movable plate (411) and the rear limit plate (405), so that the ring can only be placed between the front movable plate (411) and the rear limit plate (405).

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