Forging forming device for driving shaft production

Abstract

The invention relates to the technical field of metal processing, in particular to a forging forming device for driving shaft production, which comprises a front baffle plate and a rear baffle plate, the front baffle plate and the rear baffle plate are arranged in parallel, a mounting plate is fixedly connected to the outer rings of the front baffle plate and the rear baffle plate, an oil cylinder is fixedly connected to the mounting plate, and a plurality of sliding chutes are formed in the front baffle plate in a penetrating manner; the forging forming device comprises a plurality of sliding grooves, the sliding grooves are located in the same circumference and arranged at equal intervals, sliding seats are arranged in the sliding grooves in a sliding fit mode, a transmission shaft is rotationally installed on the sliding seats, and a plurality of dies are installed at one end of the transmission shaft at equal intervals. And the die completing forging and pressing work is replaced and cleaned, so that a product is prevented from being damaged by oil sludge attached to the surface of the die in the forging and pressing work process.

Description

Technical Field

[0001] The present invention relates to the technical field of metal processing, in particular to a forging device for producing a drive shaft. Background Art

[0002] When using a hydraulic press to forge a drive shaft, the blank needs to be placed in the die on the hydraulic press. When the hydraulic press applies pressure to the die, the die will stretch the blank to forge it into shape.

[0003] However, in the actual working process, when the blank is forged, the contact surface between the die and the blank may generate a large amount of friction heat due to the excessive friction coefficient, which affects the service life of the die.

[0004] To address this issue, prior art processes typically apply a layer of lubricant to the blank surface during drive shaft forging to reduce friction between the die and the blank. However, during continuous forging, the lubricant on the blank surface combines with metal particles generated during deformation, forming sludge on the die surface. This sludge can cause stains, scratches, or oxidation on the product surface during subsequent forging, impacting both its appearance and performance. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a forging device for producing a drive shaft.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A forging device for producing a drive shaft is designed, including a front baffle and a rear baffle, which are arranged in parallel, and a mounting plate is fixedly connected to the outer ring of the front baffle and the rear baffle, and an oil cylinder is fixedly connected to the mounting plate, and a plurality of slide grooves are opened through the front baffle, and the plurality of slide grooves are on the same circumference and arranged at equal intervals, and a sliding seat is slidingly fitted in the slide groove, and a transmission shaft is rotatably mounted on the sliding seat, and a plurality of molds are equidistantly mounted on one end of the transmission shaft, and a connecting plate is fixedly connected to the outer wall of the sliding seat, and the output end of the oil cylinder is fixedly connected to the connecting plate, and a rotating structure is provided at the other end of the transmission shaft to drive the transmission shaft to rotate.

[0008] Preferably, the rotating structure includes a first gear and a first rack, the first rack is fixed to the outer wall of the front baffle, the first gear is installed on the outer wall of the transmission shaft through a first one-way bearing, and the first gear matches the first rack.

[0009] Preferably, a cleaning structure is provided on the rear baffle for cleaning the mold, and the cleaning structure includes a cleaning roller with a hollow interior, and a slot is provided through the rear baffle, a slider is slidably fitted in the slot, and the slider is fixedly connected to the connecting plate, an external spline tube is rotatably mounted on the slider, an internal spline tube is slidably fitted on the outer wall of the external spline tube, and the bottom end of the cleaning roller is coaxially fixed to the top end of the internal spline tube.

[0010] Preferably, a driving structure is provided on the rear baffle for driving the external spline tube to rotate, and the driving structure includes a second rack and a second gear. The second rack is fixed to the outer wall of the rear baffle, and the second gear is installed at the bottom end of the external spline tube through a second one-way bearing. The second gear matches the second rack.

[0011] Preferably, a lifting structure is provided on the rear baffle to drive the cleaning roller to move axially along the outer spline tube, and the lifting structure includes a guide block and a connecting plate. A guide groove is provided through the rear baffle, and the guide block is slidably fitted in the guide groove. A reciprocating screw is fixedly mounted on the guide block, and the connecting plate is rotatably connected to the bottom of the inner spline tube. A driving gear is fixed to the outer wall of the inner spline tube, and a driven gear is rotatably mounted on the outer wall of the connecting plate. The driving gear matches the driven gear, and the driven gear is threadedly fitted on the reciprocating screw.

[0012] Preferably, an air suction slit is provided on the cleaning roller, and the external spline tube is connected to the negative pressure end of the air extraction device.

[0013] The forging device for drive shaft production proposed in the present invention has the beneficial effect that during the forging process of the blank, the mold that has completed the forging work can be replaced and cleaned without stopping the machine, thereby ensuring that the product will not be damaged by the oil sludge attached to the surface of the mold during the forging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of a forging device for producing a drive shaft proposed by the present invention. Figure 1 .

[0015] Figure 2 This is a schematic diagram of the structure of a forging device for producing a drive shaft proposed by the present invention. Figure 2 .

[0016] Figure 3 This is a front view of a forging device for producing a drive shaft proposed by the present invention.

[0017] Figure 4 The present invention proposes a forging device for producing a drive shaft Figure 3 Middle AA section view.

[0018] Figure 5 The present invention proposes a forging device for producing a drive shaft Figure 3 Middle BB section.

[0019] Figure 6 This is a structural schematic diagram of the front side of a front baffle of a forging device for drive shaft production proposed by the present invention.

[0020] Figure 7 This is a structural schematic diagram of the back side of the front baffle of a forging device for drive shaft production proposed by the present invention.

[0021] In the figure: 1, front baffle; 101, slide; 102, sliding seat; 103, transmission shaft; 104, mold; 105, first gear; 106, first one-way bearing; 107, first rack; 108, connecting plate;

[0022] 2. Rear baffle; 201. Guide groove; 202. Notch; 203. Slider; 204. External spline tube; 205. Internal spline tube; 206. Cleaning roller; 207. Second gear; 208. Second one-way bearing; 209. Guide block; 210. Reciprocating screw; 211. Driven gear; 212. Driving gear; 213. Connecting plate;

[0023] 3. Mounting plate;

[0024] 4. Oil cylinder;

[0025] 5. Second rack; DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] Reference Figures 1-4 A forging device for producing a drive shaft includes a front baffle 1 and a rear baffle 2. The front baffle 1 and the rear baffle 2 are arranged in parallel. A mounting plate 3 is fixed to the outer ring of the front baffle 1 and the rear baffle 2. A cylinder 4 is fixed to the mounting plate 3. A plurality of slide grooves 101 are opened through the front baffle 1. The plurality of slide grooves 101 are on the same circumference and are arranged at equal intervals. A sliding seat 102 is slidably fitted in the slide groove 101. A transmission shaft 103 is rotatably mounted on the sliding seat 102. A plurality of dies 104 are installed at equal intervals at one end of the transmission shaft 103. A connecting plate 108 is fixed to the outer wall of the sliding seat 102. The output end of the cylinder 4 is fixed to the connecting plate 108. A rotating structure is provided at the other end of the transmission shaft 103 to drive the transmission shaft to rotate.

[0028] When this device is forging the drive shaft, the surface of the drive shaft blank is coated with lubricating oil and then placed between the circumferentially distributed dies 104. The oil cylinder 4 drives the connecting plate 108 to move, and the connecting plate 108 drives the sliding seat 102 to slide in the slide groove 101. The sliding seat 102 drives the transmission shaft 103 to move centripetally, so that the die 104 at the end of the transmission shaft 103 approaches the blank. After the die 104 approaches the blank, pressure is applied to the blank from the outside to forge the drive shaft blank.

[0029] like Figure 4-Figure 7 As shown, the rotating structure includes a first gear 105 and a first rack 107. The first rack 107 is fixed to the outer wall of the front baffle 1. The first gear 105 is installed on the outer wall of the transmission shaft 103 through a first one-way bearing 106. The first gear 105 matches the first rack 107.

[0030] During the movement of the transmission shaft 103 driven by the sliding seat 102, since the first gear 105 at the end of the transmission shaft 103 is engaged with the first rack 107, the first gear 105 will be driven to rotate by the first rack 107. When the first gear 105 rotates, it will drive the transmission shaft 103 to rotate. The rotation of the transmission shaft 103 will drive the top mold 104 to rotate, so as to switch the mold 104.

[0031] Due to the one-way transmission characteristics of the first one-way bearing 106, in the process of the mold 104 approaching the blank in the present invention, the first gear 105 will not drive the transmission shaft to rotate through the first one-way bearing 106; and in the return process of the mold 104 being reset, the first gear 105 will drive the transmission shaft 103 to rotate through the first one-way bearing 106, thereby switching the mold 104 during the return process.

[0032] like Figure 4-Figure 7 As shown, a cleaning structure is provided on the rear baffle 2 for cleaning the mold 104, and the cleaning structure includes a cleaning roller 206 with a hollow interior, and a through hole 1021 is provided on the sliding seat 102 for accommodating the cleaning roller 206. A slot 202 is provided on the rear baffle 2, and a slider 203 is slidably fitted in the slot 202. The slider 203 is fixedly connected to the connecting plate 108, and an external spline tube 204 is rotatably mounted on the slider 203. An internal spline tube 205 is slidably fitted on the outer wall of the external spline tube 204, and the bottom end of the cleaning roller 206 is coaxially fixed to the top end of the internal spline tube 205.

[0033] The cleaning roller 206 is brought into contact with the inner wall of the mold 104 and then rotates, so that the cleaning roller 206 cleans the inner wall of the mold 104 to remove the sludge attached to the surface of the mold 104 .

[0034] like Figure 5 and Figure 7As shown, a driving structure is provided on the rear baffle 2 to drive the external spline tube 204 to rotate. The driving structure includes a second rack 5 and a second gear 207. The second rack 5 is fixed to the outer wall of the rear baffle 2. The second gear 207 is installed at the bottom end of the external spline tube 204 through a second one-way bearing 208. The second gear 207 matches the second rack 5.

[0035] Since the slider 203 is fixedly connected to the connecting plate 108, the slider 203 will be driven to move during the movement of the connecting plate 108, and the slider 203 will drive the external spline tube 204 to move along the slot 202, and the second gear 207 at the end of the external spline tube 204 will move synchronously. Since the second gear 207 is engaged with the second rack 5, the second gear 207 will be driven by the second rack 5 to rotate during the movement, and the second gear 207 will drive the external spline tube 204 to rotate, and the external spline tube 204 will drive the cleaning roller 206 to rotate.

[0036] Due to the presence of the second one-way bearing 208, the second gear 207 will drive the external spline tube 204 to rotate only when the second gear 207 approaches the blank, and will only idle without driving the external spline tube 204 to rotate when the second gear 207 moves away from the blank.

[0037] like Figure 5-Figure 7 As shown, the rear baffle 2 is provided with a lifting structure for driving the cleaning roller 206 to move axially along the outer spline tube 204. The lifting structure includes a guide block 209 and a connecting plate 213. A guide groove 201 is opened through the rear baffle 2, and the guide block 209 is slidably fitted in the guide groove 209. A reciprocating screw 210 is fixedly mounted on the guide block 209. The connecting plate 213 is rotatably connected to the bottom of the inner spline tube 205. A driving gear 212 is fixedly connected to the outer wall of the inner spline tube 205. A driven gear 211 is rotatably mounted on the outer wall of the connecting plate 213. The driving gear 212 matches the driven gear 211, and the driven gear 211 is threadedly fitted on the reciprocating screw 210.

[0038] During the rotation of the outer spline tube 204, the inner spline tube 205 is driven to rotate, and the rotation of the inner spline tube 205 is driven to rotate the driving gear 212, and the rotation of the driving gear 212 is driven to rotate the driven gear 211. Since the driven gear 211 is threadedly engaged with the reciprocating screw 210, it will move along the axial direction of the reciprocating screw 210 during the rotation of the driven gear 211, thereby driving the cleaning roller 206 to approach the mold 104.

[0039] like Figure 7As shown, an air suction slit is provided on the cleaning roller 206, and the external spline tube 204 is connected to the negative pressure end of the exhaust device. When the cleaning roller 206 cleans the inner wall of the mold 104, the exhaust device will put the inside of the cleaning roller 206 in a negative pressure state through the external spline tube 204, thereby using the negative pressure to suck the sludge attached to the inner wall of the mold 104 from the air suction slit to the inside of the cleaning roller 206, thereby preventing the sludge attached to the surface of the cleaning roller 206 from causing secondary pollution to the mold 104.

[0040] Working principle and workflow:

[0041] When forging the drive shaft blank, the blank is coated with lubricating oil and then placed between the multiple dies 104;

[0042] The oil cylinder 4 starts to drive the connecting plate 108 to move centripetally, and the connecting plate 108 drives the sliding seat 102 to slide in the slide groove 101. The sliding seat 102 drives the transmission shaft 103 to move centripetally, so that the mold 104 at the end of the transmission shaft 103 approaches the blank. After the mold 104 approaches the blank, pressure is applied to the blank from the outside to forge the drive shaft blank.

[0043] During the centripetal movement of the connecting plate 108, the slider 203 will be driven to move, and the slider 203 will drive the external spline tube 204 to move along the slot 202. The second gear 207 at the end of the external spline tube 204 will move synchronously. Since the second gear 207 is engaged with the second rack 5, the second gear 207 will be driven by the second rack 5 to rotate during the movement. The second gear 207 drives the external spline tube 204 to rotate, and the external spline tube 204 drives the cleaning roller 206 to rotate.

[0044] During the rotation of the outer spline tube 204, the inner spline tube 205 is driven to rotate, and the rotation of the inner spline tube 205 is driven to rotate the driving gear 212, and the rotation of the driving gear 212 is driven to rotate the driven gear 211. Since the driven gear 211 is threadedly engaged with the reciprocating screw 210, it will move along the axial direction of the reciprocating screw 210 during the rotation of the driven gear 211, thereby driving the cleaning roller 206 to approach the mold 104.

[0045] Due to the presence of the reciprocating screw 210 , the driven gear 211 moves in a linear reciprocating motion. In the present invention, when the mold 104 contacts the blank, the driven gear 211 just completes one reciprocating motion to ensure that the cleaning roller 206 can be reset.

[0046] Based on the above description, it can be known that the cleaning roller 206 is in a rotating state during the process of approaching the mold 104. Therefore, when the cleaning roller 206 contacts the mold 104, it will clean the mold 104. A suction slit is provided on the cleaning roller 206, and the external spline tube 204 is connected to the negative pressure end of the exhaust device. In the process of the cleaning roller 206 cleaning the inner wall of the mold 104, the exhaust device will make the inside of the cleaning roller 206 in a negative pressure state through the external spline tube 204, thereby using the negative pressure to suck the sludge attached to the inner wall of the mold 104 from the suction slit to the inside of the cleaning roller 206, thereby preventing the sludge attached to the surface of the cleaning roller 206 from causing secondary pollution to the mold 104.

[0047] After the die 104 performs a forging work, the cylinder 4 drives the die 104 to reset. During the return process of the die 104, the first gear 105 is driven to rotate by the first rack 107. When the first gear 105 rotates, it will drive the transmission shaft 103 to rotate. The rotation of the transmission shaft 103 will drive the top die 104 to rotate, so as to switch the die 104, so that the die 104 in contact with the blank is switched from the working position. The switched die 104 will be cleaned in the next forging cycle.

[0048] Compared with the prior art, the forging device for drive shaft production provided by the present invention can replace and clean the die 104 that has completed the forging work without stopping the machine during the forging process of the blank, thereby ensuring that the product will not be damaged by the oil sludge attached to the surface of the die 104 during the forging process.

[0049] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A forging device for producing a drive shaft, characterized in that: The invention comprises a front baffle (1) and a rear baffle (2), wherein the front baffle (1) and the rear baffle (2) are arranged in parallel, a mounting plate (3) is fixedly connected to the outer ring of the front baffle (1) and the rear baffle (2), an oil cylinder (4) is fixedly connected to the mounting plate (3), a plurality of slide grooves (101) are opened through the front baffle (1), the plurality of slide grooves (101) are on the same circumference and are arranged at equal intervals, a sliding seat (102) is slidably matched in the slide groove (101), a transmission shaft (103) is rotatably mounted on the sliding seat (102), a plurality of molds (104) are equidistantly mounted on one end of the transmission shaft (103), a connecting plate (108) is fixedly connected to the outer wall of the sliding seat (102), an output end of the oil cylinder (4) is fixedly connected to the connecting plate (108), and a rotating structure is provided at the other end of the transmission shaft (103) to drive the transmission shaft to rotate.

2. The forging device for producing a drive shaft according to claim 1, characterized in that: The rotating structure comprises a first gear (105) and a first rack (107), wherein the first rack (107) is fixed to the outer wall of the front baffle (1), and the first gear (105) is installed on the outer wall of the transmission shaft (103) via a first one-way bearing (106), and the first gear (105) matches the first rack (107).

3. The forging device for producing a drive shaft according to claim 2, characterized in that: The rear baffle (2) is provided with a cleaning structure for cleaning the mold (104), the cleaning structure comprising a cleaning roller (206) with a hollow interior, a notch (202) penetrating the rear baffle (2), a slider (203) slidingly fitted in the notch (202), the slider (203) being fixedly connected to the connecting plate, an external spline tube (204) rotatably mounted on the slider (203), an internal spline tube (205) slidingly fitted on the outer wall of the external spline tube (204), the bottom end of the cleaning roller (206) being coaxially fixedly connected to the top end of the internal spline tube (205).

4. The forging device for producing a drive shaft according to claim 3, characterized in that: The rear baffle (2) is provided with a driving structure for driving the external spline tube (204) to rotate, the driving structure comprising a second rack (5) and a second gear (207), the second rack (5) being fixed to the outer wall of the rear baffle (2), the second gear (207) being mounted on the bottom end of the external spline tube (204) via a second one-way bearing (208), and the second gear (207) matching the second rack (5).

5. The forging device for producing a drive shaft according to claim 4, characterized in that: The rear baffle (2) is provided with a lifting structure for driving the cleaning roller (206) to move axially along the outer spline tube (204), the lifting structure comprising a guide block (209) and a connecting plate (213), a guide groove (201) is provided through the rear baffle (2), the guide block (209) is slidably fitted in the guide groove (209), a reciprocating screw (201) is fixedly mounted on the guide block (209), the connecting plate (213) is rotatably connected to the bottom of the inner spline tube (205), a driving gear (212) is fixedly connected to the outer wall of the inner spline tube (205), a driven gear (211) is rotatably mounted on the outer wall of the connecting plate (213), the driving gear (212) matches the driven gear (211), and the driven gear (211) is threadedly fitted on the reciprocating screw (210).

6. The forging device for producing a drive shaft according to claim 5, characterized in that: An air suction slit is provided on the cleaning roller (206), and the external spline tube (204) is connected to the negative pressure end of the air extraction device.

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