Large flange forging equipment and forging method

Abstract

The invention relates to the technical field of flange forging equipment, and discloses large flange forging equipment and a forging method.The large flange forging equipment comprises a bearing base, a hydraulically-driven forging hammer is arranged on the bearing base, a forging supporting plate is arranged at the upper end of the bearing base, and a forging top plate is slidably arranged on the forging supporting plate; a displacement mechanism for driving the forging top plate to eccentrically rotate is arranged on the bearing base, a protective purification mechanism for preventing impurities from splashing in the forging process through airflow is slidably arranged on the outer side of the bearing base, and a pulse gas supply mechanism for intermittently supplying gas to the protective purification mechanism along with rotation of the positioning grooved wheel is arranged in the bearing base; according to the flange forging device, the position of a forged flange raw material does not need to be adjusted by manually holding a rod piece, the operation efficiency is high, the protection capacity for an operator is improved, the forging quality is improved, and meanwhile the protection capacity for a forging hammer is improved.

Description

Technical Field

[0001] The invention relates to the technical field of flange forging equipment, and in particular to large-scale flange forging equipment and a forging method. Background Art

[0002] When forging large flanges, huge pressure is applied to the metal blank to refine and homogenize the grains inside the metal. This dense organizational structure significantly improves the strength and toughness of the large flanges, allowing the flanges to withstand higher pressures and stresses. Therefore, large forged flanges are widely used in many industries such as petroleum and natural gas, chemicals, and electric power.

[0003] The large-scale flange forging equipment currently in use is usually composed of a forging hammer and a supporting plate driven by different powers (usually pneumatic or hydraulic). When in use, the operator places the forging flange raw material on the supporting plate, and forges the forging flange raw material by moving the forging hammer up and down. Since it is necessary to forge different positions of the forging flange raw material, the current industry usually adopts the method of moving the forging flange raw material by manually holding a homemade rod-shaped tool so that the forging hammer can contact different positions of the forging flange raw material for forging. This operation method requires the cooperation of multiple people and has low operation efficiency. In addition, since the operator needs to be close to the high-temperature forging flange raw material, during the forging process, impurities (various components such as the raw material oxide layer) generated on the surface of the forging flange raw material are prone to splashing, which not only pollutes the workplace but also has an adverse effect on the health of the operators. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the above difficulties and provide a large flange forging equipment and a forging method.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is as follows: a large flange forging equipment comprises a supporting base, a hydraulically driven forging hammer is arranged on the supporting base, a forging support plate is arranged on the upper end of the supporting base, a forging top plate is slidably arranged on the forging support plate, a displacement mechanism for driving the forging top plate to rotate is arranged on the supporting base, the displacement mechanism comprises a support frame arranged in the supporting base, a positioning groove wheel is rotatably arranged on the upper end of the supporting frame, a positioning slide groove is arranged on the upper end of the positioning groove wheel, a positioning slider is slidably arranged in the positioning slide groove, a positioning slide column symmetrically arranged on the upper end of the positioning slider and slidingly matched with the forging top plate is arranged, a power mechanism for driving the positioning groove wheel to rotate in a circle and adjusting the distance between the positioning slider and the center of the positioning groove wheel during the rotation of the positioning groove wheel is arranged on the supporting frame, a protective purification mechanism for avoiding splashing of impurities during the forging process by airflow is slidably arranged on the outer side of the supporting base, a pulse air supply mechanism for intermittently providing gas to the protective purification mechanism as the positioning groove wheel rotates is arranged in the supporting base, and a plurality of groups of gravity centering mechanisms for centering the flange are equidistantly arranged on the forging top plate along the circumferential direction.

[0006] As an improvement, the power mechanism includes a driving motor arranged on one side of the support frame, and a primary groove wheel and a secondary groove wheel are provided at the output end of the driving motor. The secondary groove wheel is connected to the positioning groove wheel by a belt, and the primary groove wheel drives the pulse air supply mechanism to provide gas to the protective purification mechanism.

[0007] As an improvement, an adjusting column is rotatably provided on the support frame, and an adjusting bevel gear and a matching bevel gear are respectively provided at both ends of the adjusting column, a synchronous gear ring is rotatably provided on the support frame, a synchronous rod is provided on the inner side of the synchronous gear ring, and a synchronous bevel gear meshing with the matching bevel gear is rotatably provided on the synchronous rod, a power bevel gear meshing with the synchronous bevel gear is rotatably provided on the support frame, a synchronous column is rotatably provided on one side of the support frame, and a synchronous gear and a matching gear are respectively provided at both ends of the synchronous column, and the matching gear is meshed with the synchronous gear ring, a positioning gear meshed with the synchronous gear is provided at the lower end of the positioning groove wheel, a positioning screw rod which is threadedly matched with the positioning slider is rotatably provided in the positioning slide groove, and a positioning bevel gear meshing with the adjusting bevel gear is provided at one end of the positioning screw, and when the power bevel gear is stationary, the adjusting bevel gear and the positioning groove wheel have the same rotation angular velocity.

[0008] As an improvement, the protective purification mechanism includes a protective cover plate slidably arranged on the outside of the supporting base, the protective cover plate is driven by an electric push rod to slide along the axis direction of the supporting base, an air storage bin is provided at the lower end of the protective cover plate, the air storage bin is connected to the pulse air supply mechanism, a purification air pipe is connected to the air storage bin, a purification nozzle is provided on the purification air pipe facing the center of the protective cover plate, and a protective ring plate is provided on the top of the protective cover plate.

[0009] As an improvement, the pulse air supply mechanism includes an air collecting barrel arranged in a supporting base, the air collecting barrel is connected to the air storage bin, a one-way air inlet valve is connected to the lower end of the air collecting barrel, and a sealing piston is provided in the air collecting barrel for sealing sliding movement, which reciprocates up and down in a straight line as the first-stage groove wheel rotates.

[0010] As an improvement, the sealing piston extends into the gas collecting barrel at one end and is sleeved with a pulse spring. The gas collecting barrel is provided with a fixed support plate at the upper end. A rotating bracket is rotatably provided on one side of the fixed support plate. A rotating lever is provided on the rotating bracket. A rotating crank that rotates with the sealing piston is rotatably provided at one end of the rotating bracket. A driving plate that intermittently cooperates with the rotating lever is rotatably provided on the rotating bracket. The driving plate drives the rotating lever to drive the rotating bracket to rotate. The driving plate is driven by a primary groove wheel transmission.

[0011] As an improvement, the gravity centering mechanism includes centering brackets equidistantly arranged along the circumferential direction of the forging top plate, and no less than four groups of centering brackets are arranged. Centering arms are symmetrically rotatable on multiple groups of centering brackets, and centering gear rings are provided on the centering arms to cooperate with adjacent centering arms. Multiple groups of centering grooves are provided on one centering arm, and a centering plate is provided on the other centering arm. Centering pins that cooperate with the centering grooves are connected to the centering brackets by ropes.

[0012] As an improvement, the centering bracket is rotatably matched with the forged top plate, a centering slide column is slidably provided on the forged top plate, the centering slide column passes through the forged top plate, an adjustment bracket is provided at the lower end of the centering slide column and the centering bracket is slidably matched with the centering bracket, and a centering spring connected to the adjustment bracket is provided on the forged top plate.

[0013] A large flange forging method, using the large flange forging equipment, the steps are as follows: Step 1: Drive the protection and purification mechanism downward until the protection and purification mechanism and the forging top plate are at the same level, and put the forging flange raw material into the forging top plate; Step 2: The gravity centering mechanism centers the forged flange raw material, and drives the protection and purification mechanism to move upward to shield the forged flange raw material; Step 3: Drive the forging hammer to move up and down to forge the forged flange raw material. During this process, the displacement mechanism is driven to move by the power mechanism, and the displacement mechanism is rotated by the forging top plate. During the rotation process, the rotation trajectory of the forging top plate is adjusted so that the forging hammer can forge the flange raw material. Step 4: The pulse gas supply mechanism intermittently supplies gas to the protective purification mechanism, and the protective purification mechanism sprays gas to blow off the flange raw material and the raw material adhering to the forging hammer during the forging process.

[0014] Compared with the prior art, the present invention has the following beneficial effects: the displacement mechanism drives the forging top plate to drive the forging flange raw material to rotate, and the forging operation is performed on different positions of the forging flange raw material. There is no need to adjust the position of the forging flange raw material by manually holding a rod, and the operation efficiency is high while keeping the operators away from the forging site, thereby improving the protection of the operators. The pulse air supply mechanism intermittently supplies air to the protection and purification mechanism as the displacement mechanism moves. The protection and purification mechanism blows off the impurities generated on the surface of the forging flange raw material during the forging process and the impurities adhered to the forging hammer through the airflow, thereby cleaning the impurities, improving the forging quality and improving the protection of the forging hammer. Specifically: 1. When the power bevel gear rotates, there is a difference in the angular velocity between the adjusting bevel gear and the positioning groove wheel. The adjusting bevel gear drives the positioning bevel gear meshing with it to rotate, and the positioning screw drives the positioning slider to slide along the positioning slide groove to adjust the rotation trajectory of the forging top plate. The position of the forging flange raw material can be adjusted without stopping the machine, making the forging operation more continuous and improving the efficiency of the forging operation; 2. The electric push rod extends, and the electric push rod drives the protective cover plate to move upward to shield the flange forging raw material, so as to prevent impurities generated on the surface of the flange forging raw material from splashing out of the protective cover plate, thereby protecting the work site environment and the health of the workers. The gas is ejected from the purification nozzle through the purification air pipe to clean the impurities. After the forging is completed, the electric push rod drives the protective cover plate to move downward until the upper end surface of the protective cover plate is flush with the forging top plate. At this time, the protective cover plate does not shield the forging flange raw material, which is convenient for transferring the forged flange raw material out of the forging top plate; 3. The pulse air supply mechanism realizes the purpose of intermittently and quickly transporting the gas in the gas collection barrel to the gas storage bin without setting a power element through a linkage structure, thereby simplifying the structure and reducing the maintenance and repair costs of the device of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The invention discloses a structural schematic diagram of a large flange forging device and a forging method.

[0016] Figure 2 It is an exploded view of a large flange forging device and a forging method of the present invention.

[0017] Figure 3 The invention discloses a structural schematic diagram of a displacement mechanism of a large flange forging device and a forging method.

[0018] Figure 4 It is an exploded view of a displacement mechanism of a large flange forging device and a forging method of the present invention.

[0019] Figure 5 It is a cross-sectional view of a displacement mechanism of a large flange forging device and a forging method of the present invention.

[0020] Figure 6 It is a structural schematic diagram of a large flange forging equipment and a protective purification mechanism of a forging method of the present invention.

[0021] Figure 7 The invention discloses a structural schematic diagram of a pulse air supply mechanism of a large flange forging device and a forging method.

[0022] Figure 8 It is an exploded view of a pulse air supply mechanism of a large flange forging device and a forging method of the present invention.

[0023] Fig. 9 It is a cross-sectional view of a pulse air supply mechanism of a large flange forging device and a forging method of the present invention.

[0024] Fig.10 It is an exploded view of a gravity centering mechanism of a large flange forging device and a forging method of the present invention.

[0025] Fig.11 It is a cross-sectional view of a gravity centering mechanism of a large flange forging device and a forging method of the present invention.

[0026] Fig.12 It is a structural schematic diagram of a large flange forging device and a forging method in a non-operating state according to the present invention.

[0027] As shown in the figure: 1. Supporting base; 11. Forging top plate; 12. Forging hammer; 13. Forging support plate; 2. Displacement mechanism; 21. Support frame; 22. Positioning groove wheel; 221. Positioning gear; 222. Positioning slide groove; 223. Positioning slide block; 224. Positioning screw; 225. Positioning bevel gear; 226. Positioning slide column; 23. Adjusting rotating column; 231. Adjusting bevel gear; 232. Matching bevel gear; 24. Synchronous gear ring; 241. Synchronous rod; 242. Synchronous bevel gear; 25. Power bevel gear; 26. Synchronous rotating column; 261. Synchronous gear; 262. Matching gear; 27. Driving motor; 271. Primary groove wheel; 272. Secondary groove wheel; 3. Protection and purification mechanism; 31. Protection cover plate; 32. Gas storage bin; 33, purification air pipe; 331, purification nozzle; 332, protective ring plate; 4, pulse air supply mechanism; 41, gas collecting barrel; 411, one-way air inlet valve; 42, sealing piston; 421, pulse spring; 43, rotating bracket; 431, rotating lever; 432, rotating crank; 44, driving plate; 441, driving groove wheel; 45, transmission groove wheel; 451, transmission bevel gear; 452, pulse bevel gear; 453, pulse groove wheel; 46, fixed support plate; 5, gravity centering mechanism; 51, centering bracket; 52, centering rotating arm; 521, centering gear ring; 522, centering groove; 523, centering plate; 524, centering pin; 53, centering slide column; 531, adjusting bracket; 532, centering spring. DETAILED DESCRIPTION

[0028] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0029] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 With attached Fig.12 As shown, a large flange forging equipment comprises a supporting base 1, on which a hydraulically driven forging hammer 12 is provided, the supporting base 1 is a hollow barrel-shaped structure, an opening is provided at the lower end of the supporting base 1, a forging support plate 13 is provided at the upper end of the supporting base 1, a plurality of through holes for impurities to fall are opened on the forging support plate 13, a forging top plate 11 is slidably provided on the forging support plate 13, a displacement mechanism 2 for driving the forging top plate 11 to rotate is provided on the supporting base 1, a protective purification mechanism 3 for avoiding splashing of impurities during forging by airflow is slidably provided on the outer side of the supporting base 1, a pulse air supply mechanism 4 for intermittently supplying gas to the protective purification mechanism 3 as the positioning groove wheel 22 rotates is provided inside the supporting base 1, and a plurality of gravity centering mechanisms 5 for centering the flange are equidistantly provided on the forging top plate 11 along the circumferential direction.

[0030] The working principle of the present invention is as follows: the cut forged flange blank is heated to the forging temperature to form a forged flange raw material, the forged flange raw material is placed on the forging top plate 11, the displacement mechanism 2 drives the forging top plate 11 to rotate, and the forging top plate 11 drives the forging flange raw material to rotate synchronously, thereby increasing the moving range of the forging flange raw material and facilitating the comprehensive forging operation of the forging flange raw material. During this process, the forging hammer 12 falls at a fixed position, so that the forging hammer 12 can cover different positions of the forging flange raw material. Furthermore, the forging hammer 12 can perform forging operations on different positions of the forging flange raw material without manual operation. The worker holds the rod to adjust the position of the forging flange raw material to perform forging operations on different positions of the forging flange raw material. The operation efficiency is high while keeping the workers away from the forging site, thereby improving the protection capability for the workers. Furthermore, the pulse air supply mechanism 4 intermittently supplies air to the protection and purification mechanism 3 as the displacement mechanism 2 moves. The protection and purification mechanism 3 blows off the impurities generated on the surface of the forging flange raw material during the forging process and the impurities adhered to the forging hammer 12 through the airflow, and enters the interior of the supporting base 1 through the through hole under the action of gravity. The impurities flow out of the supporting base 1 through the opening at the lower end of the supporting base 1, thereby realizing the cleaning of the impurities.

[0031] Combined with Figure 3 , Attachment Figure 4 , Attachment Figure 5 With attached Fig.11 As shown, the displacement mechanism 2 includes a support frame 21 arranged in the supporting base 1, and a positioning groove wheel 22 is rotatably provided at the upper end of the support frame 21, and a positioning slide groove 222 is provided at the upper end of the positioning groove wheel 22, and a positioning slider 223 is slidably provided in the positioning slide groove 222, and a positioning slide column 226 is symmetrically provided at the upper end of the positioning slide column 223 for sliding cooperation with the forging top plate 11, and a connecting sleeve is provided at the lower end of the forging top plate 11 for sliding cooperation with the positioning slide column 226. The support frame 21 is provided with a power mechanism for driving the positioning groove wheel 22 to rotate in a circle and adjusting the center distance between the positioning slider 223 and the positioning groove wheel 22 during the rotation of the positioning groove wheel 22, and the power mechanism includes a driving motor 27 arranged on one side of the support frame 21, and the output end of the driving motor 27 is provided with a primary groove wheel 271 and a secondary groove wheel 272, and the secondary groove wheel 272 is connected to the positioning groove wheel 22 by a belt, and the primary groove wheel 271 drives the pulse air supply mechanism 4 to provide gas to the protection and purification mechanism 3.

[0032] The working principle of the displacement mechanism 2 is as follows: the driving motor 27 drives the primary groove wheel 271 and the secondary groove wheel 272 to rotate synchronously, the secondary groove wheel 272 drives the positioning groove wheel 22 to rotate through the belt, and the positioning groove wheel 22 drives the positioning slide 222 and the positioning slider 223 to rotate synchronously during the rotation process, and the positioning slider 223 drives the forging top plate 11 to rotate through the positioning slide column 226. When the axis of the forging top plate 11 is in line with the axis of the positioning groove wheel 22, the forging top plate 11 rotates in a circle. When the positioning slider 223 drives the forging top plate 11 through the positioning slide column 226, the positioning slider 223 drives the forging top plate 11 to rotate in a circle. When the axis of the forging top plate 11 is not colinear with the axis of the positioning groove wheel 22, the forging top plate 11 rotates eccentrically, that is, the forging top plate 11 rotates around the axis of the positioning groove wheel 22. The relative position of the axis of the forging top plate 11 and the axis of the positioning groove wheel 22 can be adjusted by adjusting the position of the positioning slider 223, thereby further adjusting the position of the forging top plate 11. Since the forging top plate 11 supports the forging flange raw material, the position of the forging flange raw material can be adjusted to achieve the purpose of forging different positions of the forging flange raw material.

[0033] Combined with Figure 3 , Attachment Figure 4 With attached Figure 5 As shown, the support frame 21 is rotatably provided with an adjusting column 23, and both ends of the adjusting column 23 are respectively provided with an adjusting bevel gear 231 and a matching bevel gear 232, a synchronous gear ring 24 is rotatably provided on the support frame 21, and a synchronous rod 241 is provided inside the synchronous gear ring 24, and a synchronous bevel gear 242 meshing with the matching bevel gear 232 is rotatably provided on the synchronous rod 241, and a power bevel gear 25 meshing with the synchronous bevel gear 242 is rotatably provided on the support frame 21, and the power bevel gear 25 can be directly driven by a motor to rotate in a circle, or a worm gear is provided at the lower end of the power bevel gear 25, and the worm meshing with the worm gear is driven to rotate by the motor, or by shaking The driving worm drives the worm wheel to rotate, and a synchronous rotating column 26 is rotated on one side of the support frame 21. A synchronous gear 261 and a matching gear 262 are respectively provided at both ends of the synchronous rotating column 26. The matching gear 262 is meshed with the synchronous gear ring 24. A positioning gear 221 meshed with the synchronous gear 261 is provided at the lower end of the positioning groove wheel 22. A positioning screw 224 that is threadedly matched with the positioning slider 223 is rotatably provided in the positioning slide groove 222. A positioning bevel gear 225 meshed with the adjusting bevel gear 231 is provided at one end of the positioning screw 224. When the power bevel gear 25 is stationary, the adjusting bevel gear 231 and the positioning groove wheel 22 have the same rotation angular velocity.

[0034] The working principle of the power bevel gear 25 driving the positioning bevel gear 225 to rotate is as follows: during the rotation of the positioning groove wheel 22, the positioning gear 221 rotates synchronously, the positioning gear 221 drives the synchronous rotating column 26 to rotate through the synchronous gear 261 meshing with it, and the matching gear 262 rotates while driving the synchronous gear ring 24 meshing with it to rotate. During the rotation process, the synchronous gear ring 24 drives the synchronous bevel gear 242 to revolve around the axis of the synchronous gear ring 24 through the synchronous rod 241; When the power bevel gear 25 remains stationary, the synchronous bevel gear 242 is meshed with the power bevel gear 25, so that the synchronous bevel gear 242 rotates while revolving around the axis of the synchronous gear ring 24. The synchronous bevel gear 242 drives the adjustment column 23 to rotate through the mating bevel gear 232 meshed with it, and the adjustment bevel gear 231 rotates synchronously. At this time, the adjustment bevel gear 231 and the positioning groove wheel 22 rotate at the same angular speed. Therefore, the positioning bevel gear 225 meshed with the adjustment bevel gear 231 is in a relatively static state. At this time, the positioning screw 224 does not rotate, and the positioning slider 223 does not slide. Furthermore, when the power bevel gear 25 is rotated, a difference occurs in the angular velocity of the adjusting bevel gear 231 and the positioning groove wheel 22. At this time, the adjusting bevel gear 231 drives the positioning bevel gear 225 meshing with it to rotate, and the positioning screw 224 rotates and drives the positioning slider 223 threadedly matched with it to slide along the positioning slide groove 222. The positioning slider 223 drives the forging top plate 11 to move through the positioning slide column 226, thereby realizing the adjustment of the rotation trajectory of the forging top plate 11. The position of the forging flange raw material can be adjusted without stopping the machine, so that the forging operation is more continuous and the efficiency of the forging operation is improved.

[0035] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 6 With attached Fig.12 As shown, the protection and purification mechanism 3 includes a protection cover plate 31 slidably arranged on the outside of the supporting base 1, and a transparent window is arranged on the protection cover plate 31. The protection cover plate 31 is driven by an electric push rod to slide along the axial direction of the supporting base 1, and an air storage bin 32 is arranged at the lower end of the protection cover plate 31. The air storage bin 32 is connected to the pulse air supply mechanism 4 through a freely retractable pipeline. A purification air pipe 33 is connected to the air storage bin 32. No less than six purification air pipes 33 are equidistantly arranged along the circumferential direction of the air storage bin 32. A purification nozzle 331 is arranged on the purification air pipe 33 toward the center of the protection cover plate 31, and a protection ring plate 332 is arranged at the top of the protection cover plate 31.

[0036] Working principle of the protection and purification mechanism 3: the electric push rod extends, the electric push rod drives the protective cover plate 31 to move upward, and the air storage bin 32 moves upward synchronously, the protective cover plate 31 shields the flange forging raw material, thereby preventing impurities generated on the surface of the flange forging raw material from splashing out of the protective cover plate 31 during the forging process. At the same time, the pulse air supply mechanism 4 sends the gas into the air storage bin 32 through the pipeline, and then the gas is sprayed out from the purification nozzle 331 after passing through the purification air pipe 33. The sprayed gas cleans the impurities. After forging is completed, the electric push rod is shortened, and the electric push rod drives the protective cover plate 31 to move downward until the upper end surface of the protective cover plate 31 is flush with the forging top plate 11. At this time, the forged flange raw material that has been forged can be conveniently transferred out of the forging top plate 11.

[0037] Combined with Figure 2 , Attachment Figure 6 , Attachment Figure 7 , Attachment Figure 8 With attached Fig. 9 As shown, the pulse air supply mechanism 4 includes an air collecting barrel 41 arranged in the supporting base 1, the air collecting barrel 41 is connected to the air storage bin 32, and a one-way air inlet valve 411 is connected to the lower end of the air collecting barrel 41. The one-way air inlet valve 411 controls the flow direction of the gas to ensure that the gas can only flow into the air collecting barrel 41 but cannot flow out of the air collecting barrel 41. It is composed of a valve body, a valve core, a spring and a sealing member, etc. This is the current existing technology and will not be repeated here. A sealing piston 42 is provided in the air collecting barrel 41 for sliding sealing and performing up and down reciprocating linear motion with the rotation of the first-stage groove wheel 271; The sealing piston 42 extends into the gas collecting barrel 41 and is sleeved with a pulse spring 421 at one end. A fixed support plate 46 is provided at the upper end of the gas collecting barrel 41. A rotating bracket 43 is rotatably provided on one side of the fixed support plate 46. A rotating lever 431 is provided on the rotating bracket 43. A rotating crank 432 that is rotatably matched with the sealing piston 42 is rotatably provided at one end of the rotating bracket 43. A driving plate 44 that intermittently cooperates with the rotating lever 431 is rotatably provided on the rotating bracket 43. A driving groove wheel 441 is provided at one end of the driving plate 44. A transmission groove wheel 45 connected to the driving groove wheel 441 through a belt is rotatably provided on the gas collecting barrel 41. A transmission bevel gear 451 is provided at one end of the transmission groove wheel 45. A pulse bevel gear 452 that meshes with the transmission bevel gear 451 is rotatably provided on the gas collecting barrel 41. A pulse groove wheel 453 that is connected to the primary groove wheel 271 through a belt is provided on the upper end of the pulse bevel gear 452.

[0038] The working principle of the pulse air supply mechanism 4 is as follows: the first-stage groove wheel 271 rotates, and the first-stage groove wheel 271 drives the pulse groove wheel 453 to rotate through the belt, and the pulse bevel gear 452 rotates synchronously and drives the transmission bevel gear 451 meshing therewith to rotate, and the transmission groove wheel 45 rotates and drives the driving groove wheel 441 and the driving dial plate 44 to rotate synchronously through the belt, and the driving dial plate 44 intermittently contacts with the rotating lever 431 during the circular rotation, when the driving dial plate 44 contacts with the rotating lever 431 and drives the rotating bracket 43 to rotate through the rotating lever 431, the rotating bracket 43 drives the rotating crank 432 to move upward, and the sealing piston 42 moves upward and squeezes the pulse spring 421, and the gas enters the gas collecting barrel 41 through the one-way air inlet valve 411, and the driving dial plate 44 continues to rotate until the driving dial plate 44 loses the limit on the rotating lever 431, and the pulse spring 421 is reset and drives the sealing piston 42 to reset quickly, and then the gas in the gas collecting barrel 41 is transported to the gas storage bin 32 through the pipeline to purge impurities.

[0039] Combined with Figure 1 , Attachment Figure 2 , Attachment Fig.10 With attached Fig.11 As shown, the gravity centering mechanism 5 includes a centering bracket 51 that is equidistantly rotated along the circumferential direction of the forged top plate 11. The centering bracket 51 is an L-shaped structure. No less than four groups of centering brackets 51 are provided. Centering arms 52 are symmetrically rotated on multiple groups of centering brackets 51. The centering arms 52 are provided with centering toothed rings 521 that cooperate with adjacent centering arms 52. One centering arm 52 is provided with multiple groups of centering grooves 522, and another centering arm 52 is provided with a centering dial. Plate 523, the centering bracket 51 is connected with a centering pin 524 which cooperates with the centering groove 522 through a rope, the forged top plate 11 is slidably provided with a centering slide column 53, the centering slide column 53 penetrates the forged top plate 11, the lower end of the centering slide column 53 is provided with an adjusting bracket 531 which slidably cooperates with the centering bracket 51, the centering bracket 51 is symmetrically provided with symmetrical sliding rods which slidably cooperate with the adjusting bracket 531, and the forged top plate 11 is provided with a centering spring 532 connected with the adjusting bracket 531.

[0040] The working principle of the gravity centering mechanism 5 is as follows: the forged flange raw material is placed on the forged top plate 11, and the forged flange raw material drives the centering slide column 53 to slide downward by gravity, and the adjusting bracket 531 slides downward synchronously and drives the centering bracket 51 to rotate, and the adjusting bracket 531 squeezes the centering spring 532, and the centering spring 532 is forced to shrink. During the rotation of the centering bracket 51, the multiple groups of centering rotating arms 52 arranged on the upper part thereof are driven to rotate synchronously toward and abut against the forged flange raw material, thereby centering the forged flange raw material. Perform centering clamping, and further, pull out the centering pin 524 from the centering groove 522. At this time, the two adjacent centering arms 52 can rotate freely. Move the centering plate 523. Due to the setting of the centering tooth ring 521, the two centering arms 52 rotate synchronously, and then the centering arms 52 can be freely adjusted according to the size and placement position of the forged flange raw material. After the adjustment is completed, the centering pin 524 is matched with the corresponding centering groove 522 to achieve the fixation of the position of the centering arm 52.

[0041] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 6 , Attachment Figure 7 , Attachment Fig.10 With attached Fig.11 As shown, a large flange forging method, using the large flange forging equipment, the steps are as follows: Step 1: drive the protection and purification mechanism 3 to move downward until the protection and purification mechanism 3 and the forging top plate 11 are at the same horizontal plane, and put the forging flange raw material on the forging top plate 11; Step 2: The gravity centering mechanism 5 centers the forged flange raw material, and drives the protection and purification mechanism 3 to move upward to shield the forged flange raw material; Step 3: driving the forging hammer 12 to move up and down to forge the forged flange raw material. During this process, the displacement mechanism 2 is driven to move by the power mechanism, and the displacement mechanism 2 is rotated by the forging top plate 11. During the rotation process, the rotation trajectory of the forging top plate 11 is adjusted so that the forging hammer 12 can forge the flange raw material. Step 4: The pulse gas supply mechanism 4 intermittently supplies gas to the protection and purification mechanism 3, and the protection and purification mechanism 3 sprays gas to blow off the flange raw material and the raw material adhering to the forging hammer 12 during the forging process.

[0042] During the specific implementation of the present invention, the forged flange raw material is placed on the forging top plate 11, the forged flange raw material drives the centering slide column 53 to slide downward by gravity, the centering bracket 51 drives multiple sets of centering rotating arms 52 to synchronously approach and abut against the forged flange raw material, the forged flange raw material is centeringly clamped, the electric push rod is operated to extend, and the protective cover plate 31 moves upward to cover the flange forging raw material, thereby completing the preparation work before forging; When forging, the forging hammer 12 is started, and the forging hammer 12 reciprocates up and down and contacts with the forging flange raw material, so as to forge the forging flange raw material. During this process, the driving motor 27 is started, the primary groove wheel 271 and the secondary groove wheel 272 rotate synchronously, and the forging top plate 11 drives the forging flange raw material to rotate, so as to forge different positions of the forging flange raw material; During this process, the first-stage groove wheel 271 drives the pulse groove wheel 453 to rotate, and the rotating bracket 43 drives the rotating crank 432 to reciprocate up and down. With the cooperation of the pulse spring 421, the gas enters the gas collecting barrel 41 through the one-way air inlet valve 411 and is quickly transported to the gas storage bin 32. After the gas pipe 33 is purified, it is ejected from the purification nozzle 331, and the ejected gas cleans the impurities. Finally, after the forging is completed, the electric push rod is operated to shorten, and the electric push rod drives the protective cover plate 31 to move downward until the upper end surface of the protective cover plate 31 is flush with the forging top plate 11, and the forged flange raw material is transferred out of the forging top plate 11.

[0043] The present invention and its embodiments are described above, and such description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if ordinary technicians in the field are inspired by it and do not deviate from the purpose of the invention, they can creatively design a structure and embodiment similar to the technical solution, which should fall within the protection scope of the present invention.

Claims

1. A large flange forging device, comprising a supporting base (1), wherein a hydraulically driven forging hammer (12) is provided on the supporting base (1), characterized in that: The upper end of the supporting base (1) is provided with a forged support plate (13), a forged top plate (11) is slidably provided on the forged support plate (13), a displacement mechanism (2) for driving the forged top plate (11) to rotate is provided on the supporting base (1), the displacement mechanism (2) comprises a support frame (21) arranged in the supporting base (1), a positioning groove wheel (22) is rotatably provided on the upper end of the support frame (21), a positioning groove (222) is provided on the upper end of the positioning groove wheel (22), a positioning slide block (223) is slidably provided in the positioning groove (222), and a positioning slide column (226) slidably matched with the forged top plate (11) is symmetrically provided on the upper end of the positioning slide block (223); The support frame (21) is provided with a power mechanism for driving the positioning groove wheel (22) to rotate in a circular motion and for adjusting the distance between the positioning slide block (223) and the center of the positioning groove wheel (22) during the rotation of the positioning groove wheel (22); The support base (1) is provided with a protective purification mechanism (3) that moves in the circumferential direction and prevents impurities from splashing during the forging process through airflow. The support base (1) is provided with a pulse air supply mechanism (4) that intermittently supplies gas to the protective purification mechanism (3) as the positioning groove wheel (22) rotates. The forging top plate (11) is provided with a plurality of groups of gravity centering mechanisms (5) that are equidistantly spaced along the circumferential direction and are used to center the flange.

2. A large flange forging equipment according to claim 1, characterized in that: The power mechanism comprises a driving motor (27) arranged on one side of the support frame (21); a primary groove wheel (271) and a secondary groove wheel (272) are provided at the output end of the driving motor (27); the secondary groove wheel (272) is connected to the positioning groove wheel (22) via a belt; and the primary groove wheel (271) drives the pulse air supply mechanism (4) to supply gas to the protection and purification mechanism (3).

3. A large flange forging equipment according to claim 2, characterized in that: The support frame (21) is rotatably provided with an adjustment column (23), and the two ends of the adjustment column (23) are respectively provided with an adjustment bevel gear (231) and a matching bevel gear (232); the support frame (21) is rotatably provided with a synchronous gear ring (24), and a synchronous rod (241) is provided inside the synchronous gear ring (24), and a synchronous bevel gear (242) meshing with the matching bevel gear (232) is rotatably provided on the synchronous rod (241); a power bevel gear (25) meshing with the synchronous bevel gear (242) is rotatably provided on the support frame (21); a synchronous column (26) is rotatably provided on one side of the support frame (21), and a synchronous gear (261) and a matching gear (262) are respectively provided at the two ends of the synchronous column (26), and the matching gear (262) meshes with the synchronous gear ring (24); and a positioning gear (221) meshing with the synchronous gear (261) is provided at the lower end of the positioning groove wheel (22); A positioning screw (224) is rotatably provided in the positioning slide groove (222) and is engaged with the positioning slide block (223) through a thread. A positioning bevel gear (225) is provided at one end of the positioning screw (224) and is meshed with the adjusting bevel gear (231). When the power bevel gear (25) is stationary, the adjusting bevel gear (231) and the positioning groove wheel (22) rotate at the same angular velocity.

4. A large flange forging equipment according to claim 2, characterized in that: The protection and purification mechanism (3) comprises a protection cover plate (31) slidably arranged on the outside of the supporting base (1), the protection cover plate (31) being driven by an electric push rod to slide along the axis direction of the supporting base (1), an air storage bin (32) being provided at the lower end of the protection cover plate (31), the air storage bin (32) being connected to the pulse air supply mechanism (4), a purification air pipe (33) being provided on the air storage bin (32), a purification nozzle (331) being provided on the purification air pipe (33) facing the center of the protection cover plate (31), and a protection ring plate (332) being provided at the top end of the protection cover plate (31).

5. A large flange forging equipment according to claim 4, characterized in that: The pulse air supply mechanism (4) comprises an air collecting barrel (41) arranged in the supporting base (1), the air collecting barrel (41) being connected to the air storage bin (32), a one-way air inlet valve (411) being provided at the lower end of the air collecting barrel (41), and a sealing piston (42) being provided in a sealing and sliding manner in the air collecting barrel (41) and performing up and down reciprocating linear motion as the primary groove wheel (271) rotates.

6. A large flange forging equipment according to claim 5, characterized in that: The sealing piston (42) extends into the gas collecting barrel (41), and one end of the sealing piston (42) is sleeved with a pulse spring (421). The upper end of the gas collecting barrel (41) is provided with a fixed support plate (46). A rotating bracket (43) is rotatably provided on one side of the fixed support plate (46). A rotating lever (431) is provided on the rotating bracket (43). A rotating crank (432) that is rotatably matched with the sealing piston (42) is rotatably provided on one end of the rotating bracket (43). A driving lever (44) that is intermittently matched with the rotating lever (431) is rotatably provided on the rotating bracket (43). The driving lever (44) shifts the rotating lever (431) to drive the rotating bracket (43) to rotate. The driving lever (44) is driven by the primary groove wheel (271).

7. A large flange forging equipment according to claim 1, characterized in that: The gravity centering mechanism (5) comprises centering brackets (51) arranged equidistantly along the circumferential direction of the forging top plate (11), and at least four groups of centering brackets (51) are arranged, and centering rotating arms (52) are symmetrically rotated on the plurality of groups of centering brackets (51), and the centering rotating arms (52) are provided with centering toothed rings (521) cooperating with adjacent centering rotating arms (52), and one of the centering rotating arms (52) is provided with a plurality of groups of centering grooves (522), and another of the centering rotating arms (52) is provided with a centering dial plate (523), and the centering brackets (51) are connected to centering pins (524) cooperating with the centering grooves (522) via ropes.

8. A large flange forging equipment according to claim 7, characterized in that: The centering bracket (51) is rotatably matched with the forged top plate (11); a centering slide column (53) is slidably provided on the forged top plate (11); the centering slide column (53) passes through the forged top plate (11); an adjustment bracket (531) slidably matched with the centering bracket (51) is provided at the lower end of the centering slide column (53); and a centering spring (532) connected to the adjustment bracket (531) is provided on the forged top plate (11).

9. A large flange forging method, using the large flange forging equipment according to any one of claims 1 to 8, characterized in that: The steps are as follows: Step 1: driving the protection and purification mechanism (3) to move downward until the protection and purification mechanism (3) and the forging top plate (11) are at the same horizontal plane, and placing the forging flange raw material on the forging top plate (11); Step 2: The gravity centering mechanism (5) centers the forged flange raw material, and drives the protection and purification mechanism (3) to move upward to shield the forged flange raw material; Step 3: driving the forging hammer (12) to move up and down to forge the forged flange raw material. During this process, the displacement mechanism (2) is driven to move by the power mechanism, and the displacement mechanism (2) drives the forged flange raw material to rotate through the forging top plate (11). During the rotation process, the rotation trajectory of the forging top plate (11) is adjusted so that the forging hammer (12) can forge the part of the flange raw material; Step 4: The pulse gas supply mechanism (4) intermittently supplies gas to the protective purification mechanism (3), and the protective purification mechanism (3) sprays gas to blow off the flange raw material and the raw material adhering to the forging hammer (12) during the forging process.

Images