Automatic forging equipment for bearing ring

Abstract

The invention relates to the technical field of bearing ring forging and pressing, in particular to bearing ring automatic forging equipment which comprises a hot blank discharging pipe, a closed forging box is arranged on the lower side of the hot blank discharging pipe and filled with inert gas, and the lower end of the hot blank discharging pipe communicates with a material conveying mechanism for conveying hot blanks. An oxide skin removing mechanism which rubs the outer surface of the blank is installed on the inner top wall of the closed forging box in a penetrating mode, the oxide skin removing mechanism is divided into a fixed part and a movable part, and the fixed part of the oxide skin removing mechanism communicates with the material conveying mechanism. A hot blank can enter the oxide skin removing mechanism through the hot blank discharging pipe and the material conveying mechanism, oxide skin generated when the hot blank is conveyed in the external space is removed, inert gas on the inner side of the closed forging box protects the hot blank, a new oxide layer is not formed on the outer side of the hot blank in the forging process any more, and the forging quality is improved. And the purity of the hot blank is ensured during forging of the forging mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearing ring forging, in particular to a bearing ring automatic forging equipment. BACKGROUND

[0002] Forming machine is a kind of machine tool equipment for manufacturing parts through plastic deformation or separation of materials (rather than cutting materials), which is widely used in forming processing of metal or non-metal materials. Its core principle is to use mold and external force (such as pressure, impact force) to make materials change in shape or size, and finally obtain a workpiece that meets the design requirements.

[0003] The forging process of bearing ring (including bearing outer ring and inner ring) is one of the key links in manufacturing high-performance bearings, and its purpose is to obtain a ring blank that meets the requirements through plastic deformation, laying a foundation for subsequent machining and heat treatment.

[0004] Forming machine is the core equipment of bearing forging manufacturing, especially for the key bearing parts (such as ring, rolling body), which realizes "shaping by force" through plastic deformation, significantly improves the mechanical properties of materials, reduces the cutting allowance, and is the key support for mass production of high-end bearings. According to the size, material and precision requirements of bearing parts, the selection of forming machine is quite different, and the core equipment includes press (forging machine), hot die forging press, hydraulic press, screw press and cold header.

[0005] Hot forging needs to heat the blank to above the initial forging temperature to reduce the deformation resistance and improve the metal fluidity. The heated hot blank is delivered to the forging position through the pipe, and the blank is pressed by the forging equipment (hydraulic press, forging hammer, mechanical press) to make it plastic deformation and obtain the ring blank.

[0006] In the prior art, the hot blank is forged in the external environment. Since the blank is in a high temperature state, the outer layer of the blank will form an oxide layer when it contacts with the air. The oxide layer is easily pressed into the inside of the forging during forging, causing the existence of oxidation impurities in the inside of the forging during forging, which reduces the qualified rate of the forging. SUMMARY

[0007] In order to prevent the oxide skin on the outside of the forging from entering the inside of the forging under pressure during forging, the present application provides a bearing ring automatic forging equipment.

[0008] The application provides a bearing ring automatic forging equipment which adopts the technical scheme as follows: a hot blank blanking pipe is provided with a closed forging box at the lower side, inert gas is filled in the closed forging box, a conveying hot blank transmission mechanism is communicated and installed at the lower end of the hot blank blanking pipe, a scale removing mechanism for rubbing the outer surface of the blank is penetrated and installed on the top wall in the closed forging box, the scale removing mechanism is divided into a fixed part and a movable part, and the fixed part of the scale removing mechanism is communicated and installed with the transmission mechanism.

[0009] A support frame is horizontally installed on the inner side of the closed forging box, the movable part of the scale removing mechanism can powerfully slide horizontally on the upper side of the support frame, a forging pressing mechanism is penetrated and installed at one end of the support frame where the closed forging box is located, when the movable part of the scale removing mechanism moves to the position of the forging pressing mechanism, the hot blank inside the scale removing mechanism can fall into the forging pressing mechanism, and a collecting mechanism is penetrated and installed on the bottom surface of the closed forging box and is communicated with the forging pressing mechanism.

[0010] Optionally, the transmission mechanism comprises a long box and a movable strip, the movable strip is slidingly inserted into the long box, the movable strip can powerfully move in the long box, the lower end of the hot blank blanking pipe is communicated and installed with the long box, an up-and-down through groove is formed in the upper end surface of the movable strip, and the fixed part of the scale removing mechanism is communicated and installed with the long box.

[0011] Optionally, the fixed part of the scale removing mechanism comprises a variable-diameter pipe and a brush rod holder, the brush rod holder is coaxially installed on the inner side of the variable-diameter pipe, the upper end of the variable-diameter pipe penetrates the top wall in the closed forging box, the variable-diameter pipe is communicated and installed with the long box at one end on the upper side of the closed forging box, and the upper end of the variable-diameter pipe is located apart from the lower end of the hot blank blanking pipe.

[0012] The movable part of the scale removing mechanism comprises a vertical transmission cylinder and a mounting bracket, the mounting bracket can be detachably sleeved on the outer side of the vertical transmission cylinder, the vertical transmission cylinder is located below the variable-diameter pipe, the mounting bracket can powerfully move left and right and is installed in the closed forging box, the mounting bracket is slidingly contacted and placed on the upper surface of the support frame, the vertical transmission cylinder bottom surface is slidingly contacted with a frictional through-hole plate, and the frictional through-hole plate is installed on the upper surface of the support frame.

[0013] The lower side of the variable-diameter pipe is provided with a plugging plate holder, one end of the plugging plate holder away from the forging pressing mechanism is elastically connected with the closed forging box, and a cleaning brush plate is vertically inserted into the inner wall of the vertical transmission cylinder.

[0014] Optionally, the brush rod holder is composed of a plurality of rods, one side of the rod of the brush rod holder close to the axis of the variable-diameter pipe and one side of the cleaning brush plate close to the axis of the vertical transmission cylinder are both brush-shaped, and the brush strip is made of elastic and recoverable metal material.

[0015] The rod of the brush rod holder is spirally arranged.

[0016] Optionally, the forging mechanism comprises a flat plate, a movable bin and a forging die slot rod, the movable bin is fixedly installed on the bottom surface of the support frame, the upper surface of the flat plate is flush with the upper surface of the friction through-hole plate, the flat plate is fixedly connected with one end of the friction through-hole plate, the lower end of the flat plate is installed through the upper surface of the support frame, the upper surface of the flat plate is provided with a material passing hole, the lower end of the material passing hole is communicated with the inside of the movable bin, the vertical material conveying cylinder can be coaxially coincided with the material passing hole in movement, the upper side of the material passing hole is provided with a stamping part, and the stamping part is installed in the inside of the closed forging box and can move up and down by power.

[0017] The forging die slot rod is slidably inserted into the inside of the movable bin, the forging die slot rod is vertically arranged with the vertical material conveying cylinder movement track, the upper end of the forging die slot rod is provided with a stamping slot penetrating up and down, and the stamping slot can be coaxially communicated with the material passing hole in movement of the forging die slot rod.

[0018] Optionally, the collecting mechanism comprises a material collecting box, the lower end of the material collecting box is installed through the inner bottom wall of the closed forging box, the upper end of the material collecting box is communicated and installed with the movable bin, the stamping slot can be communicated with the inside of the material collecting box when the stamping slot moves to the front and rear sides of the material passing hole with the forging die slot rod, and the material collecting box can be opened at one end outside the closed forging box.

[0019] Optionally, the inside of the variable-diameter material pipe is fixedly installed with a jet ring, the bottom of the jet ring is provided with a hole for airflow to pass through, the outer surface of the variable-diameter material pipe is installed through with a circulating air pump communicated with the jet ring, the circulating air pump is located in the inside of the closed forging box, and the jet ring is located on the upper side of the brush rod frame.

[0020] The middle part of the variable-diameter material pipe has a larger inner diameter than the two ends, and the brush rod frame and the jet ring are both located in the inside of the large-diameter end part of the variable-diameter material pipe.

[0021] Optionally, the mounting frame is slidably connected with vertical elastic telescopic rods on the front and rear sides of the vertical material conveying cylinder, the lower ends of the vertical elastic telescopic rods are elastically connected with the mounting frame, the upper ends of the two vertical elastic telescopic rods are connected through a connecting frame, the connecting frame is located between the vertical material conveying cylinder and the forging mechanism, a press column capable of power rotating is penetrated through the middle part of the connecting frame, and the outer diameter of the press column is smaller than the inner diameter of the vertical material conveying cylinder.

[0022] The front and rear surfaces of the support frame are both fixedly provided with track baffles, the connecting frame is located on the side of the track baffles close to the forging mechanism, the front and rear ends of the connecting frame are rod-shaped and can be in contact with the track baffles, the upper end of the side of the track baffles close to the forging mechanism is a vertical surface, the lower end of the side of the track baffles close to the forging mechanism is an inclined surface, and the bottom surface of the press column is provided with a groove structure.

[0023] Optionally, two rows of rollers are rotatably installed on the bottom surface of the mounting frame, and the mounting frame is suspended on the upper side of the support frame under the support of the rollers.

[0024] In summary, the present application has the following beneficial technical effects: This invention utilizes the coordination between components such as an oxide scale removal mechanism and an inert gas filling the sealed forging box. The heated billet enters the oxide scale removal mechanism through the billet feeding pipe and the material transfer mechanism to remove the oxide scale generated during the transport of the billet in the external space. The inert gas inside the sealed forging box protects the billet, preventing the formation of a new oxide layer on the outside of the billet during forging and ensuring the purity of the billet during forging.

[0025] This invention, through the setting of components such as a brush rod frame, a cleaning brush plate, and a pressure column, allows the brush rod frame to initially remove the oxide scale on the side of the hot billet as it falls into the variable diameter material tube. After the hot billet falls into the vertical transfer cylinder, as it moves toward the forging mechanism, the connecting frame disengages from the trajectory baffle, causing the pressure column to gradually become coaxial with the vertical transfer cylinder. Then, under the pull of the elastic telescopic rod, the pressure column applies pressure to the hot billet in the vertical transfer cylinder. As the pressure column rotates, it causes the hot billet to rotate out of position, further removing the oxide scale on the outer side of the hot billet during its movement.

[0026] This invention, by setting up components such as a movable bar, a material trough, a forging die groove rod, and a stamping groove, allows a hot billet to fall into the material trough when the hot billet feeding pipe is connected to the material trough. When the movable bar moves again, causing the material trough to connect with the reducing pipe, the hot billet on the inner side falls into the reducing pipe, isolating the air on the outer side to the upper part of the long box. At the same time, after the hot billet falls into the inner side of the stamping groove through the material passage hole, during the stamping process, when the forging die groove rod moves back and forth, the stamping groove connects with the collection box, and the forged material falls into the collection box. This prevents the collection box from being connected to the space where the hot billet moves and is forged, effectively reducing the formation of oxide scale when the hot billet moves inside the closed forging box. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention; Figure 2 This is a schematic diagram of the internal structure of the enclosed forging box in an embodiment of the present invention; Figure 3 This is a front view schematic diagram of some structures in an embodiment of the present invention; Figure 4 This is a schematic diagram of the distribution of the forging die groove rod and flat plate in an embodiment of the present invention; Figure 5 This is a schematic diagram of the material transfer mechanism in an embodiment of the present invention; Figure 6 This is a schematic diagram of the oxide scale removal mechanism in an embodiment of the present invention; Figure 7 This is a side view schematic diagram of some structures in an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of the brush holder and cleaning brush plate in an embodiment of the present invention; Figure 9This is a schematic diagram of the connection between the roller and the mounting bracket in an embodiment of the present invention.

[0028] Reference numerals: 1. Hot billet feeding pipe; 2. Enclosed forging box; 3. Material transfer mechanism; 31. Long box; 32. Movable bar; 33. Material trough; 4. Oxide scale removal mechanism; 41. Variable diameter material pipe; 411. Air jet ring; 412. Circulating air pump; 42. Brush rod frame; 43. Vertical material transfer cylinder; 44. Mounting frame; 441. Vertical elastic telescopic rod; 442. Connecting frame; 443. Pressure column; 444. Track baffle; 445. Roller; 45. Friction through-hole plate; 46. Sealing plate frame; 47. Cleaning brush plate; 5. Support frame; 6. Forging mechanism; 61. Flat plate; 62. Movable storage box; 63. Forging die groove rod; 64. Material passage hole; 65. Stamping component; 66. Stamping groove; 7. Collection mechanism; 71. Material receiving box. Detailed Implementation

[0029] The following is in conjunction with the appendix Figures 1-9 The present invention will be described in further detail below.

[0030] This invention discloses an automatic forging equipment for bearing rings. For example... Figures 1-9 As shown, it includes a hot billet feeding pipe 1, a closed forging box 2 is provided on the lower side of the hot billet feeding pipe 1, the closed forging box 2 is filled with inert gas, the lower end of the hot billet feeding pipe 1 is connected to a material transfer mechanism 3 for conveying hot billets, the upper end of the hot billet feeding pipe 1 is connected to a device for heating billets, and the hot billet slides down from the upper side into the hot billet feeding pipe 1. The top wall of the closed forging box 2 is connected to a scale removal mechanism 4 for rubbing the outer surface of the billet. The scale removal mechanism 4 is divided into a fixed part and a movable part. The fixed part of the scale removal mechanism 4 is connected to the material transfer mechanism 3.

[0031] The material transfer mechanism 3 includes a long box 31 and a movable bar 32. The movable bar 32 is slidably inserted into the long box 31 and can move with power in the long box 31. A hydraulic cylinder or electric telescopic rod is installed on the outside of the long box 31 to control the movement of the movable bar 32 in the long box 31. The lower end of the hot billet feeding pipe 1 is connected to the long box 31. The upper end face of the movable bar 32 is provided with a material groove 33 that runs vertically through the material groove. When the movable bar 32 drives the material groove 33 to connect with the hot billet feeding pipe 1, a hot billet in the hot billet feeding pipe 1 can fall into the material groove 33. When the movable bar 32 moves, it can drive a hot billet in the material groove 33 to be misaligned and separated from the hot billet in the hot billet feeding pipe 1. The fixed part of the oxide scale removal mechanism 4 is connected to the long box 31. The small amount of air remaining in the material groove 33 is gradually consumed in the formation of the oxide layer in the hot billet.

[0032] The fixed part of the oxide scale removal mechanism 4 includes a variable diameter material tube 41 and a brush rod frame 42. The brush rod frame 42 is coaxially installed inside the variable diameter material tube 41. The movable part of the oxide scale removal mechanism 4 includes a vertical conveying cylinder 43 and a mounting frame 44. The mounting frame 44 is detachably sleeved on the outside of the vertical conveying cylinder 43. After the mounting frame 44 is disassembled, the vertical conveying cylinder 43 can be replaced and repaired. The brush rod frame 42 is composed of multiple rods. A cleaning brush plate 47 is vertically inserted into the inner wall of the vertical conveying cylinder 43. The side of the rods of the brush rod frame 42 near the axis of the variable diameter material tube 41 and the side of the cleaning brush plate 47 near the axis of the vertical conveying cylinder 43 are both brush-shaped. The brush strips are made of elastic and recoverable metal material. The rods of the brush rod frame 42 are spirally arranged.

[0033] In this embodiment, after the hot billet falls into the inner side of the reducing pipe 41, it continues to fall downwards under gravity. The brush rod frame 42 brushes the outer side of the hot billet to remove the oxide scale on the surface of the hot billet. At the same time, when the hot billet slides in contact with the spiral brush rod frame 42, the surfaces of the hot billet in different vertical directions can be brushed, increasing the oxide scale removal effect.

[0034] The upper end of the reducing pipe 41 penetrates the inner top wall of the closed forging box 2. The upper end of the reducing pipe 41 is connected to the long box 31. The upper end of the reducing pipe 41 is offset from the lower end of the hot billet unloading pipe 1. The reducing pipe 41 and the hot billet unloading pipe 1 cannot move with the material trough 33 at the same time, so that the external air in the hot billet unloading pipe 1 will not enter the reducing pipe 41.

[0035] A support frame 5 is horizontally installed inside the closed forging box 2. The movable part of the oxide scale removal mechanism 4 can slide horizontally on the upper side of the support frame 5. A forging pressing mechanism 6 is installed through one end of the closed forging box 2 on the support frame 5. When the movable part of the oxide scale removal mechanism 4 moves to the forging pressing mechanism 6, the hot billet inside the oxide scale removal mechanism 4 can fall into the forging pressing mechanism 6.

[0036] The vertical feed cylinder 43 is located below the variable diameter tube 41. The mounting frame 44 is installed inside the closed forging box 2 and can be moved left and right by power. The closed forging box 2 is equipped with an electric telescopic rod or hydraulic cylinder to control the movement of the mounting frame 44. When the vertical feed cylinder 43 moves to be coaxial with the variable diameter tube 41, the hot billet in the variable diameter tube 41 falls into the vertical feed cylinder 43.

[0037] The mounting bracket 44 is slidably placed on the upper surface of the support frame 5. Two rows of rollers 445 are rotatably mounted on the bottom surface of the mounting bracket 44. The mounting bracket 44 is suspended on the upper side of the support frame 5 under the support of the rollers 445, which reduces the resistance encountered by the mounting bracket 44 when sliding and reduces the wear between the mechanisms.

[0038] The bottom surface of the vertical feed cylinder 43 has a friction through plate 45 that slides in contact with it. The friction through plate 45 is installed on the upper surface of the support frame 5. When the vertical feed cylinder 43 moves the hot billet, the friction through plate 45 rubs against the bottom surface of the hot billet to clean the oxide scale on the bottom surface of the hot billet. At the same time, the oxide scale cleaned out inside the vertical feed cylinder 43 can fall off from the perforated structure of the friction through plate 45.

[0039] In this embodiment, one side of the bottom of the closed forging box 2 can be opened to clean the oxide scale that has been removed from inside the closed forging box 2.

[0040] The mounting frame 44 is slidably connected to vertical elastic telescopic rods 441 on both the front and rear sides of the vertical conveying cylinder 43. The lower ends of the vertical elastic telescopic rods 441 are elastically connected to the mounting frame 44. Preferably, the vertical elastic telescopic rods 441 and the mounting frame 44 are elastically connected by springs. The upper ends of the two vertical elastic telescopic rods 441 are connected by a connecting frame 442. The connecting frame 442 is located between the vertical conveying cylinder 43 and the forging mechanism 6. A pressure column 443 capable of dynamic rotation passes through the middle part of the connecting frame 442. The outer diameter of the pressure column 443 is smaller than the inner diameter of the vertical conveying cylinder 43. The elastic connection between the lower end of the vertical elastic telescopic rod 441 and the mounting frame 44 has a tendency to drive the pressure column 443 to be coaxial with the vertical conveying cylinder 43.

[0041] Track baffles 444 are fixed at both the front and rear of the support frame 5. The connecting frame 442 is located on the side of the track baffle 444 near the forging mechanism 6. The front and rear ends of the connecting frame 442 are rod-shaped and can contact the track baffle 444. The upper end of the track baffle 444 near the forging mechanism 6 is vertical, and the lower end of the track baffle 444 near the forging mechanism 6 is inclined. The bottom surface of the pressure column 443 has a groove structure. The pressure column 443 is pressed into the vertical material transfer cylinder 43 and contacts the hot billet. During the movement, the oxide scale can be thrown out from the groove at the bottom of the pressure column 443. When the vertical conveyor cylinder 43 moves to the lower side of the variable diameter material pipe 41, the rods at both ends of the connecting frame 442 first contact the inclined part of the track baffle 444, causing the pressure column 443 to gradually move upward relative to the vertical conveyor cylinder 43 and separate. Then, when the vertical conveyor cylinder 43 continues to move, it causes the pressure column 443 to gradually misalign with the vertical conveyor cylinder 43, so that the upper end of the vertical conveyor cylinder 43 can be connected to the variable diameter material pipe 41.

[0042] A sealing plate frame 46 is provided on the lower side of the variable diameter tube 41. The end of the sealing plate frame 46 away from the forging mechanism 6 is elastically connected to the closed forging box 2. The elastic connection between the sealing plate frame 46 and the closed forging box 2 is preferably a horizontally arranged elastic telescopic rod. When the vertical transfer cylinder 43 is separated from the lower end of the variable diameter tube 41, the sealing plate frame 46 gradually seals the lower end of the variable diameter tube 41 under the elastic connection with the closed forging box 2, so that the hot billet in the variable diameter tube 41 cannot continue to fall downward to the outside of the vertical transfer cylinder 43.

[0043] A jet ring 411 is fixedly installed inside the variable diameter tube 41. The bottom of the jet ring 411 has a hole for airflow to pass through. A circulating air pump 412 connected to the jet ring 411 is installed through the outer surface of the variable diameter tube 41. The circulating air pump 412 is located inside the closed forging box 2. The jet ring 411 is located on the upper side of the brush rod frame 42. When the circulating air pump 412 is started, it blows the inert gas in the closed forging box 2 into the jet ring 411. Then, the bottom surface of the jet ring 411 sprays out the inert gas airflow. The airflow helps to push the hot billet downward and blows away the external air remaining on the surface of the hot billet, further reducing the re-formation of the oxide layer on the surface of the hot billet.

[0044] The inner diameter of the middle part of the variable diameter tube 41 is larger than the inner diameter of its two ends. The brush rod holder 42 and the air jet ring 411 are both located inside the large diameter end of the variable diameter tube 41.

[0045] The forging mechanism 6 includes a flat plate 61, a movable storage box 62, and a forging die groove rod 63. The movable storage box 62 is fixedly installed on the bottom surface of the support frame 5. The upper surface of the flat plate 61 is flush with the upper surface of the friction through-hole plate 45. The flat plate 61 is fixed in contact with one end of the friction through-hole plate 45. The lower end of the flat plate 61 is installed through the upper surface of the support frame 5. A material passage hole 64 is opened on the upper surface of the flat plate 61. The lower end of the material passage hole 64 is connected to the interior of the movable storage box 62. The vertical material conveying cylinder 43 can be coaxially overlapped with the material passage hole 64 during movement. When overlapped, the hot billet in the vertical material conveying cylinder 43 falls into the material passage hole 64. A stamping component 65 is provided on the upper side of the material passage hole 64. The stamping component 65 is installed inside the closed forging box 2 and moves up and down by power. The closed forging box 2 controls the stamping component 65 to move downward through the material passage hole 64 by installing a hydraulic cylinder.

[0046] The forging die groove rod 63 is slidably inserted into the movable chamber 62. The enclosed forging box 2 is equipped with an electric telescopic rod or hydraulic cylinder to control the movement of the forging die groove rod 63. The forging die groove rod 63 is set perpendicular to the movement trajectory of the vertical conveyor cylinder 43. The upper end of the forging die groove rod 63 is provided with a vertically penetrating stamping groove 66. During the movement of the forging die groove rod 63, the stamping groove 66 can be coaxially connected with the material passage hole 64. When the stamping groove 66 is connected with the material passage hole 64, the hot billet in the material passage hole 64 falls into the stamping groove 66. Then, the stamping component 65 passes through the material passage hole 64 to stamp the hot billet in the stamping groove 66.

[0047] A collection mechanism 7 is installed through the bottom surface of the closed forging box 2, and the collection mechanism 7 is connected to the forging mechanism 6.

[0048] The collecting mechanism 7 includes a receiving box 71. The lower end of the receiving box 71 is installed through the bottom wall of the closed forging box 2. The upper end of the receiving box 71 is connected to the movable storage box 62. When the stamping groove 66 moves with the forging die groove rod 63 to the front and rear sides of the material passage hole 64, it can communicate with the inside of the receiving box 71. The receiving box 71 can be opened at the outer end of the closed forging box 2. After opening, the material in the receiving box 71 can be taken out. When the forging die groove rod 63 drives the stamping groove 66 to be misaligned with the material passage hole 64 and then continues to move, the stamping groove 66 communicates with the receiving box 71, so that the stamped material falls into the receiving box 71.

[0049] The working principle is as follows: After heating, the hot billet enters the oxide scale removal mechanism 4 through the hot billet feeding pipe 1 and the material transfer mechanism 3 to remove the oxide scale generated during the transport of the hot billet in the external space. The inert gas inside the sealed forging box 2 protects the hot billet, so that no new oxide layer is formed on the outside of the hot billet during forging. The hot billet with the oxide layer removed moves to the lower side of the forging mechanism 6 under the drive of the movable part of the oxide scale removal mechanism 4, so that the forging mechanism 6 forges the hot billet without oxide scale.

[0050] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An automatic forging apparatus for a bearing ring, comprising a hot blank feeding pipe (1), characterized in that: The hot blank blanking pipe (1) is provided with a closed forging box (2) at the lower side, the closed forging box (2) is filled with inert gas, the hot blank conveying mechanism (3) is communicated and installed at the lower end of the hot blank blanking pipe (1), the oxide skin removing mechanism (4) is communicated and installed with the conveying mechanism (3) at the fixed part of the oxide skin removing mechanism (4) and the top wall of the closed forging box (2); The closed forging box (2) is provided with a support frame (5) on the inner side, the movable part of the oxide skin removing mechanism (4) can be power horizontally slid on the upper side of the support frame (5), the closed forging box (2) is provided with a forging mechanism (6) at one end of the support frame (5), when the movable part of the oxide skin removing mechanism (4) moves to the forging mechanism (6), the hot blank in the oxide skin removing mechanism (4) can fall into the forging mechanism (6), the closed forging box (2) is provided with a collecting mechanism (7) penetratingly installed at the bottom, and the collecting mechanism (7) is communicated with the forging mechanism (6).

2. The apparatus of claim 1, wherein: The conveying mechanism (3) comprises a long box (31) and a movable strip (32), the movable strip (32) is slidably inserted into the long box (31), the movable strip (32) can be power moved in the long box (31), the lower end of the hot blank blanking pipe (1) is communicated and installed with the long box (31), and the upper end surface of the movable strip (32) is provided with an up-and-down penetrating material groove (33).

3. The apparatus of claim 2 wherein: The fixed part of the oxide skin removing mechanism (4) comprises a variable-diameter pipe (41) and a brush rod frame (42), the brush rod frame (42) is coaxially installed on the inner side of the variable-diameter pipe (41), the upper end of the variable-diameter pipe (41) penetrates the top wall of the closed forging box (2), the variable-diameter pipe (41) is communicated and installed with the long box (31) at one end on the upper side of the closed forging box (2), and the upper end of the variable-diameter pipe (41) is arranged in dislocation with the lower end of the hot blank blanking pipe (1); The movable part of the oxide skin removing mechanism (4) comprises a vertical conveying cylinder (43) and a mounting frame (44), the mounting frame (44) is detachably sleeved on the outer side of the vertical conveying cylinder (43), the vertical conveying cylinder (43) is located below the variable-diameter pipe (41), the mounting frame (44) can be power moved left and right and is installed in the closed forging box (2), the mounting frame (44) is slidably contacted and placed on the upper surface of the support frame (5), the vertical conveying cylinder (43) is slidably contacted with a frictional perforated plate (45), and the frictional perforated plate (45) is installed on the upper surface of the support frame (5); The variable-diameter pipe (41) is provided with a blocking plate frame (46) at the lower side, one end of the blocking plate frame (46) away from the forging mechanism (6) is elastically connected with the closed forging box (2), and the inner wall of the vertical conveying cylinder (43) is vertically inserted with a cleaning brush plate (47).

4. The apparatus of claim 3 wherein: The brush rod frame (42) is composed of a plurality of rods, one side of the rod of the brush rod frame (42) close to the axis of the variable-diameter pipe (41) and one side of the cleaning brush plate (47) close to the axis of the vertical conveying cylinder (43) are brush-shaped, and the brush strips are made of elastic and recoverable metal materials; The rod of the brush rod frame (42) is spirally arranged.

5. The apparatus of claim 3 wherein: The forging mechanism (6) includes a flat material plate (61), a movable bin (62) and a forging die groove rod (63), the movable bin (62) is fixedly installed on the bottom surface of the support frame (5), the upper surface of the flat material plate (61) is flush with the upper surface of the friction through-hole plate (45), the flat material plate (61) is fixedly contacted with one end of the friction through-hole plate (45), the lower end of the flat material plate (61) penetrates through the upper surface of the support frame (5), the upper surface of the flat material plate (61) is provided with a material passing hole (64), the lower end of the material passing hole (64) is communicated with the inside of the movable bin (62), the vertical material conveying cylinder (43) can be coaxially coincided with the material passing hole (64) in movement, the upper side of the material passing hole (64) is provided with a stamping part (65), and the stamping part (65) is movably installed in the inside of the closed forging box (2) by power; The forging die groove rod (63) is slidably inserted into the inside of the movable bin (62), the forging die groove rod (63) is vertically arranged with the movement track of the vertical material conveying cylinder (43), the upper end of the forging die groove rod (63) is provided with a stamping groove (66) penetrating through the upper and lower ends, and the stamping groove (66) of the forging die groove rod (63) can be coaxially communicated with the material passing hole (64) in movement.

6. An apparatus for the automatic forging of a bearing ring as defined in claim 5, characterized in that: The collecting mechanism (7) includes a material collecting box (71), the lower end of the material collecting box (71) penetrates through and is installed on the inner bottom wall of the closed forging box (2), the upper end of the material collecting box (71) is communicated and installed with the movable bin (62), the stamping groove (66) can be communicated with the inside of the material collecting box (71) when the stamping groove (66) is moved to the front and back sides of the material passing hole (64) along with the forging die groove rod (63), and the material collecting box (71) can be opened at one end outside the closed forging box (2).

7. A bearing ring automatic forging apparatus according to claim 3 or 4, characterized in that: The inside of the variable-diameter material pipe (41) is fixedly installed with a jet ring (411), the bottom of the jet ring (411) is provided with a hole for airflow to pass through, the outer surface of the variable-diameter material pipe (41) is penetratively installed with a circulating air pump (412) communicated with the jet ring (411), the circulating air pump (412) is located in the inside of the closed forging box (2), and the jet ring (411) is located on the upper side of the brush rod frame (42); The middle part of the variable-diameter material pipe (41) has a larger inner diameter than the inner diameters of the two ends, and the brush rod frame (42) and the jet ring (411) are both located in the inside of the large-diameter end part of the variable-diameter material pipe (41).

8. The apparatus of claim 3 wherein: The installation frame (44) is slidably connected with vertical elastic telescopic rods (441) on the front and back sides of the vertical material conveying cylinder (43), the lower ends of the vertical elastic telescopic rods (441) are elastically connected with the installation frame (44), the upper ends of the two vertical elastic telescopic rods (441) are connected through a connecting frame (442), the connecting frame (442) is located between the vertical material conveying cylinder (43) and the forging mechanism (6), the middle part of the connecting frame (442) penetrates through a pressure column (443) capable of being driven to rotate, and the outer diameter of the pressure column (443) is smaller than the inner diameter of the vertical material conveying cylinder (43). The support frame (5) is fixed with trajectory baffles (444) on the front and back surfaces, the connecting frame (442) is located on the side of the trajectory baffles (444) close to the forging mechanism (6), the front and back ends of the connecting frame (442) are rod-shaped and can contact the trajectory baffles (444), the upper end of the side of the trajectory baffles (444) close to the forging mechanism (6) is a vertical surface, the lower end of the side of the trajectory baffles (444) close to the forging mechanism (6) is an inclined surface, and the bottom surface of the pressure column (443) is provided with a groove-shaped structure.

9. The apparatus of claim 3 wherein: The bottom surface of the mounting frame (44) is rotatably provided with two rows of rollers (445), and the mounting frame (44) is suspended on the upper side of the support frame (5) under the support of the rollers (445).

Images