A fixing device for clamping shaft forgings

Abstract

The present invention relates to a fixing device for clamping shaft forgings, belonging to the technical field of fixing devices for shaft forgings; it comprises a support box, a rotation adjustment mechanism and a limit support mechanism are respectively arranged at the left and right ends of the upper end surface of the support box, an oiling mechanism is arranged between the rotation adjustment mechanism and the limit support mechanism, and a lift support mechanism that can be lifted and lowered is also arranged at the upper end surface of the support box, the limit support mechanism, the rotation adjustment mechanism and the oiling mechanism are all slidably arranged on the support box; the rotation adjustment mechanism comprises a rotatable three-jaw chuck, the limit support mechanism comprises a plurality of clamping slide blocks that move in opposite directions, the oiling mechanism comprises a sliding seat, an annular oiling swivel is rotatably arranged on the sliding seat, an infrared detection block and an oiling assembly are arranged on the inner cylindrical surface of the oiling swivel; the problem of low oiling efficiency and difficulty in starting and stopping of the current fixing device for clamping shaft forgings is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of shaft forging fixing devices, and in particular relates to a fixing device for clamping shaft forgings. Background Art

[0002] Shaft forgings play an important role in mechanical manufacturing. They are usually used as components to support transmission parts and transmit torque. During the forging process, shaft forgings need to be accurately fixed so that they can undergo the expected plastic deformation when subjected to forging pressure, while avoiding shape distortion or fracture caused by improper positioning.

[0003] Existing shaft forgings are mostly fixed by clamping devices at both ends. When clamping and fixing large and medium-sized shaft forgings, additional support structures are often installed to provide auxiliary support for the shaft forgings. This structure blocks part of the shaft forging, making it difficult to apply protective oil to this part, requiring the shaft forgings to adjust their positions multiple times, which reduces the oiling efficiency. In addition, large and medium-sized shaft forgings are difficult to start and stop when rotating, which requires more time, further extending the time consumed by subsequent processing operations. To this end, the present application designs a fixing device for clamping shaft forgings to solve the above problems. Summary of the invention

[0004] The invention overcomes the shortcomings of the prior art and provides a fixing device for clamping shaft forgings, thereby solving the problems of low oiling efficiency and difficulty in starting and stopping of the fixing device for clamping shaft forgings.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions.

[0006] A fixing device for clamping shaft forgings, comprising a support box, a rotation adjustment mechanism and a limit support mechanism are respectively arranged at the left and right ends of the upper end surface of the support box, an oiling mechanism is arranged between the rotation adjustment mechanism and the limit support mechanism, and a lift support mechanism that can be raised and lowered is also arranged at the upper end surface of the support box, the limit support mechanism is slidably arranged on the support box through a first sliding component, the rotation adjustment mechanism is slidably arranged on the support box through a second sliding component, and the oiling mechanism is slidably arranged on the support box through a third sliding component; the rotation adjustment mechanism comprises a rotatable three-jaw chuck, the limit support mechanism comprises a plurality of clamping slide blocks that move in opposite directions, and the oiling mechanism comprises a sliding seat, an annular oiling swivel is rotatably arranged on the sliding seat, and an infrared detection block and an oiling component are arranged on the inner cylindrical surface of the oiling swivel.

[0007] Furthermore, the rotation adjustment mechanism includes a first fixed plate, a rotating plate, and a first motor. A rotating plate is rotatably arranged on the end face of one side of the first fixed plate facing the limiting support mechanism, a first transmission gear ring is fixedly arranged on the outer cylindrical surface of the rotating plate, a first motor is fixedly arranged on the first fixed plate, a first transmission gear is fixedly arranged on the output shaft of the first motor, the first transmission gear is meshed with the first transmission gear ring, and the three-jaw chuck is fixedly arranged on the end face of one side of the rotating plate facing the limiting support mechanism.

[0008] Furthermore, the second sliding assembly includes a first support plate, a first guide rod, a first threaded rod, and a first sliding motor; two front and rear first sliding grooves are arranged at the left end of the upper end surface of the support box, a first threaded rod is rotatably arranged in one of the first sliding grooves, a first guide rod is fixedly arranged in the other first sliding groove, a first sliding motor is fixedly arranged on the left end surface of the support box, an output shaft of the first sliding motor is fixedly connected to the first threaded rod, two first support plates are fixedly arranged at the lower end of the first fixed plate, the two first support plates are vertically inserted into the two first sliding grooves downward, one of the first support plates is slidably sleeved on the outer side of the first guide rod, and the other first support plate is screwed to the first threaded rod.

[0009] Furthermore, the limit support mechanism includes a second fixed plate, a clamping slider, a bidirectional screw rod and a unidirectional screw rod; a transverse slide groove and two longitudinal slide grooves are also provided on the end face of one side of the second fixed plate facing the rotation adjustment mechanism, a bidirectional screw rod is rotatably arranged inside the transverse slide groove, and a unidirectional screw rod is rotatably arranged inside the longitudinal slide groove, and three screw motors are fixedly arranged on the outer cylindrical surface of the second fixed plate, and the output shaft of one screw motor is fixedly connected to the outer ends of the two unidirectional screw rods respectively. A clamping slider is respectively screwed on two external threaded sections with opposite rotation directions on the outer sides of the bidirectional screw rod, and a clamping slider is respectively screwed on the external threaded section of each unidirectional screw rod, and the four clamping sliders are arranged in a circular array relative to the axis of the second fixed plate, and a first arc surface is provided on the end face of the clamping slider on one side facing the axis of the second fixed plate, and a row of equidistant rotating clamping columns are rotatably arranged on the first arc surface.

[0010] Furthermore, a square second sliding groove is arranged at the right end of the upper end surface of the support box, and the first sliding assembly is arranged inside the second sliding groove; the first sliding assembly includes a second support plate, two sliding guide rails, and a linear motor, two sliding guide rails parallel to each other are fixed at the inner bottom surface of the second sliding groove, the second support plate is slidably connected to the upper ends of the two sliding guide rails, and a linear motor is arranged between the lower end surface of the second support plate and the inner bottom surface of the second sliding groove; the lower end of the second fixed plate is fixedly arranged on the upper end of the second support plate.

[0011] Furthermore, a lifting groove is provided in the middle of the upper end surface of the support box, and the lifting support mechanism is provided inside the lifting groove, and the lifting support mechanism includes a hydraulic lifting cylinder, a lifting seat, and a supporting top block; a hydraulic lifting cylinder is fixedly provided at the inner bottom surface of the lifting groove, and the piston rod of the hydraulic lifting cylinder is vertically upward, and a horizontal lifting seat is fixedly provided at the end of the piston rod of the hydraulic lifting cylinder, and a supporting top block is fixedly provided at the upper end of the lifting seat, and a second arc surface is provided on the upper end surface of the supporting top block; a row of anti-skid convex strips are fixedly provided on the second arc surface, and at the upper end of the anti-skid convex strips An axis detection component is provided, which includes a support detection roller, a hydraulic push rod, and a support connecting block. Two left and right roller grooves are provided at the upper end surface of the anti-slip convex strip, and a support detection roller is rotatably provided at each roller groove. Two left and right symmetrical hydraulic push rods are fixedly provided inside each roller groove, one end of the cylinder bottom of the hydraulic push rod is fixedly connected to the inner bottom surface of the roller groove, one end of the piston rod of the hydraulic push rod is fixedly provided with a support connecting block, and the support detection roller is rotatably provided between the two support connecting blocks; a pressure sensor is provided in the hydraulic push rod.

[0012] Furthermore, the oiling mechanism also includes an abutment plate; the abutment plate is fixed on the sliding seat; the oiling swivel is rotatably arranged between the sliding seat and the abutment plate, a second transmission gear ring is fixedly arranged on the outer cylindrical surface of the oiling swivel, a second transmission gear is rotatably arranged inside the sliding seat, and the second transmission gear ring and the second transmission gear are meshed with each other; a second motor is fixedly arranged on the outer surface of the sliding seat, and the output shaft of the second motor is fixedly connected to the second transmission gear; three infrared detection blocks are fixedly arranged on the inner cylindrical surface of the oiling swivel, and the three infrared detection blocks are arranged in a circular array along the axis of the oiling swivel; the oiling assembly is arranged between the two infrared detection blocks, and the oiling assembly includes an engaging fixed seat, a first swing arm, a second swing arm, an oil storage box, an oiling sleeve block, and a cleaning sleeve block;

[0013] The meshing fixed seat is fixedly arranged on the inner cylindrical surface of the oiling rotating ring between the two infrared detection blocks, a driving gear and two driven gears are rotatably arranged inside the meshing fixed seat, the two driven gears are located on both sides of the driving gear and mesh with the driving gear, a third motor is fixedly arranged on the meshing fixed seat, the output shaft of the third motor is fixedly connected to the driving gear, a first swing rod and a second swing rod are respectively fixedly arranged on the two driven gears, a cleaning sleeve block is fixedly arranged on the end of the first swing rod away from the driven gear, and an oiling sleeve block is fixedly arranged on the end of the second swing rod away from the driven gear; a plurality of oiling bristles are equidistantly arranged on the outer wall of the oiling sleeve block.

[0014] Furthermore, the third sliding assembly includes a third guide rod, a third threaded rod, and a third sliding motor. A fixed third guide rod and a rotatable third threaded rod are respectively provided at the front and rear ends of the upper end surface of the support box. A third sliding motor is also fixedly provided on the upper end surface of the support box. The output shaft of the third sliding motor is fixedly connected to one end of the third threaded rod. The sliding seat and the abutment plate are both slidably sleeved on the outside of the third guide rod and the third threaded rod, and the sliding seat is threadedly connected to the third threaded rod.

[0015] Furthermore, an oil storage box is fixedly arranged on the outer side of the second swing arm, and an oil discharge hole for connecting the oil coating sleeve block and the oil storage box is provided on the second swing arm between the oil coating sleeve block and the oil storage box, and a square movable hole is provided on the inner side of the oil coating sleeve block, the oil discharge hole is connected with the movable hole, and a square oil outlet groove is provided at both ends of the movable hole, respectively, and a circular oil storage cavity is also provided on the inner side of the oil coating sleeve block, and an oil inlet is provided at the left and right ends of the oil storage cavity, respectively, and a circular sealing plate is slidably arranged at the end faces of both ends of the oil coating sleeve block, and a square oil inlet connecting groove is provided on the end face of one side facing the oil coating sleeve block, and the oil outlet groove and the oil inlet on the oil coating sleeve block respectively correspond to the oil inlet connecting groove on the sealing plate on the same side; a movable oil drain plate is slidably arranged inside the movable hole of the oil coating sleeve block, and the movable oil drain plate It includes a main body part in the middle and extended parts at both ends. A through hole is arranged at the center of the main body part. The outer edge of the main body part maintains sliding contact with the inner wall of the movable hole. The extended parts at both ends pass through the oil outlet groove on the same side and are fixedly connected with one end of the oil inlet connecting groove on the same side close to the axis of the sealing plate, and the extended parts maintain sliding contact with the inner wall of the oil outlet groove; a lifting spring is fixedly arranged between the movable oil drain plate and the bottom surface of the movable hole on the side close to the axis of the oil-coated sleeve block; when the lifting spring is in a free extension state, the extended parts on both sides of the movable oil drain plate contact with the inner wall of the oil outlet groove away from the oil-coated sleeve block, and the sealing plate slides to the outside of the end faces at both ends of the oil-coated sleeve block. At this time, the oil inlet and the oil outlet groove are blocked by the movable oil drain plate and cannot be connected, and the oil inside the movable hole of the oil-coated sleeve block cannot enter the oil storage cavity through the oil inlet.

[0016] Furthermore, oiling holes are equidistantly arranged on the oil outlet wall of the oil storage chamber, and a barrier and anti-leakage membrane is arranged on the oil outlet wall of the oil storage chamber. The barrier and anti-leakage membrane is composed of an oil unloading membrane and a barrier membrane. Anti-drip oil unloading holes are equidistantly arranged on the oil unloading membrane, and an oil unloading protrusion extending into the oiling hole is arranged on the barrier membrane. Abutment sheets are arranged in the oil unloading protrusions. By arranging the oil unloading membrane and the anti-drip oil unloading holes, the surface tension of the liquid can be utilized to prevent the oil from dripping out. By arranging the oil unloading protrusion on the barrier membrane, the abutment of the abutment sheet can be ensured when the oil unloading protrusion is not squeezed by external force, so that the abutment sheet blocks the dripping of oil, thereby further preventing the oil from being thrown out and ensuring the oil outlet efficiency of the oil smearing.

[0017] The beneficial effects of the present invention compared with the prior art are as follows:

[0018] In the present invention, the transmission connection between the first transmission gear ring and the first transmission gear is convenient for the three-jaw chuck to drive the clamped and fixed shaft forgings to rotate, thereby improving the convenience of shaft forging processing, and further realizing the function of steering processing of shaft forgings. The support cooperation of the lifting support mechanism and the axis detection assembly for the shaft forgings facilitates the shaft forgings to be lifted up and supported and complete the centering cooperation with the device, thereby improving the fixing efficiency of the rotation adjustment mechanism and the limit support mechanism for the shaft forgings, and further realizing the function of rapid centering and fixing. Then, through the clamping and moving cooperation of the first swing arm and the second swing arm, the oiling sleeves and the cleaning sleeves at the ends of the two swing arms contact and press the shaft forgings together, thereby improving the coating effect, and further realizing the function of covering the shaft forgings by coating a small amount of oil, and finally solving the problem of difficult start and stop of large shaft forgings and low oiling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings:

[0020] Figure 1 It is a three-dimensional schematic diagram of the present invention as a whole Figure 1 ;

[0021] Figure 2 It is a three-dimensional schematic diagram of the present invention as a whole Figure 2 ;

[0022] Figure 3 It is a three-dimensional diagram of the support box, the rotation adjustment mechanism, and the limit support mechanism. Figure 1 ;

[0023] Figure 4 It is a three-dimensional diagram of the support box, the rotation adjustment mechanism, and the limit support mechanism. Figure 2 ;

[0024] Figure 5 It is a three-dimensional schematic diagram of the clamping slide;

[0025] Figure 6 It is a three-dimensional schematic diagram of the lifting support mechanism;

[0026] Figure 7 It is a three-dimensional schematic diagram of the axis detection component;

[0027] Figure 8 This is a three-dimensional diagram of the oiling mechanism. Figure 1 ;

[0028] Fig. 9 This is a three-dimensional diagram of the oiling mechanism. Figure 2 ;

[0029] Fig.10It is a schematic diagram of the internal structure of the oiling mechanism;

[0030] Fig.11 is a schematic diagram of the connection between the oiling swivel and the oiling assembly;

[0031] Fig.12 is a schematic diagram of the connection between the first swing rod and the second swing rod;

[0032] Fig.13 It is a partial enlarged schematic diagram of the oil-coated sleeve block;

[0033] Fig.14 It is a schematic diagram of the connection between the movable oil drain plate and the plugging plate;

[0034] Fig.15 is a cross-sectional view of the oil-coated sleeve block;

[0035] Fig.16 It is a schematic diagram of the connection between the oil-coated sleeve block and the plugging plate;

[0036] Among them, 1 is a support box, 2 is a rotation adjustment mechanism, 3 is a lifting support mechanism, 4 is an oiling mechanism, 5 is a limit support mechanism, 6 is a first sliding assembly, 7 is a second sliding assembly, 8 is a third sliding assembly, 9 is a support pad, 10 is a blocking cover plate, 11 is a turntable, 12 is a first motor, 13 is a screw motor, 14 is a clamping slider, 15 is a rotating clamping column, 16 is a lifting seat, 17 is a support top block, 18 is an anti-slip convex strip, 19 is a support detection roller, 20 is a support connection block, 21 is a liquid The push rod, 22 is the abutment plate, 23 is the sliding seat, 24 is the oiling swivel, 25 is the second motor, 26 is the oiling assembly, 27 is the infrared detection block, 28 is the second transmission gear, 29 is the meshing fixed seat, 30 is the first rocker arm, 31 is the third motor, 32 is the second rocker arm, 33 is the oil storage box, 34 is the oiling sleeve block, 35 is the sealing plate, 36 is the oiling brush bristles, 37 is the oil unloading convex block, 38 is the oil outlet groove, 39 is the oil inlet, 40 is the lifting spring, 41 is the oil inlet connecting groove, and 42 is the oil unloading film. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. The technical solutions of the present invention are described in detail below in conjunction with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0038] like Figure 1As shown in FIG. 16 , the present invention provides a fixing device for clamping shaft forgings, comprising a support box 1, a rotation adjustment mechanism 2 and a limit support mechanism 5 are respectively arranged at the left and right ends of the upper end surface of the support box 1, an oiling mechanism 4 is arranged between the rotation adjustment mechanism 2 and the limit support mechanism 5, and a liftable lifting support mechanism 3 is also arranged at the upper end surface of the support box 1, the limit support mechanism 5 is slidably arranged on the support box 1 through a first sliding component 6, the rotation adjustment mechanism 2 is slidably arranged on the support box 1 through a second sliding component 7, and the oiling mechanism 4 is slidably arranged on the support box 1 through a third sliding component 8; the rotation adjustment mechanism 2 includes a rotatable three-jaw chuck, the limit support mechanism 5 includes a plurality of clamping sliders 14 that move in opposite directions, and the oiling mechanism 4 includes a sliding seat 23, an annular oiling swivel 24 is rotatably arranged on the sliding seat 23, and an infrared detection block 27 and an oiling component 26 are arranged on the inner cylindrical surface of the oiling swivel 24.

[0039] The rotation adjustment mechanism 2 includes a first fixed disk, a rotating disk 11, and a first motor 12. The first fixed disk is a circular disk-shaped structure, and the first fixed disk is located in a vertical plane in the front-to-back direction; a rotating disk 11 is rotatably arranged on the end face of one side of the first fixed disk facing the limiting support mechanism 5, and the rotating disk 11 is a circular disk-shaped structure, and the rotating disk 11 is coaxially arranged with the first fixed disk; a first transmission gear ring is fixedly arranged on the outer cylindrical surface of the rotating disk 11, and a first motor 12 is fixedly arranged on the first fixed disk, and a first transmission gear is fixedly arranged on the output shaft of the first motor 12, and the first transmission gear is meshed with the first transmission gear ring. When the first motor 12 rotates, it drives the rotating disk 11 to rotate on the first fixed disk through the mutually meshing first transmission gear and the first transmission gear ring; the three-jaw chuck is fixedly arranged on the end face of one side of the rotating disk 11 facing the limiting support mechanism 5, and the three-jaw chuck is coaxially arranged with the rotating disk 11. The model of the three-jaw chuck is K11250C / A16. The setting of the three-jaw chuck can better fix and clamp shaft forgings.

[0040] The second sliding assembly 7 includes a first support plate, a first guide rod, a first threaded rod, and a first sliding motor. Two front and rear first sliding grooves are arranged at the left end of the upper end surface of the support box 1, and the first sliding grooves are extended along the left and right directions. A first threaded rod is rotatably arranged inside one of the first sliding grooves, and a first guide rod is fixedly arranged inside the other first sliding groove. The first guide rod is arranged parallel to the first threaded rod and both are arranged horizontally along the left and right directions. A first sliding motor is fixedly arranged on the left end surface of the support box 1, and the output shaft of the first sliding motor is fixedly connected to the first threaded rod, and the first threaded rod is driven to rotate by the first sliding motor. Two first support plates are fixedly arranged at the lower end of the first fixed plate of the rotation adjustment mechanism 2, and the two first support plates are vertically inserted into the two first sliding grooves downward, one of the first support plates is slidably sleeved on the outside of the first guide rod, and the other first support plate is screwed to the first threaded rod. When the first sliding motor drives the first threaded rod to rotate, since the first threaded rod is threadedly connected to the first support plate, the first support plate is driven to slide, thereby driving the rotation adjustment mechanism 2 as a whole to slide horizontally along the left-right direction.

[0041] The position limiting support mechanism 5 includes a second fixed disk, a clamping slider 14, a bidirectional screw and a unidirectional screw. The second fixed disk is a circular disk-shaped structure, and the second fixed disk is located in a vertical plane in the front-to-back direction; a support pad 9 is fixedly arranged on the end face of the second fixed disk facing the rotation adjustment mechanism 2; a transverse slide groove and two longitudinal slide grooves are also arranged on the end face of the second fixed disk facing the rotation adjustment mechanism 2, and the transverse slide groove and the longitudinal slide groove are both arranged along the radial direction of the second fixed disk, wherein the two longitudinal slide grooves are located on both sides of the middle of the transverse slide groove, and the two longitudinal slide grooves are located on the same straight line, and the two longitudinal slide grooves are perpendicular to the transverse slide groove. A bidirectional screw is rotatably arranged inside the transverse slide groove, and a unidirectional screw is rotatably arranged inside the longitudinal slide groove, and the bidirectional screw and the unidirectional screw are both arranged along the radial direction of the second fixed disk. Three screw motors 13 are fixedly arranged on the outer cylindrical surface of the second fixed disk, wherein the output shaft of one screw motor 13 is fixedly connected to one end of the bidirectional screw, and the output shafts of the remaining two screw motors 13 are fixedly connected to one end of the outer sides of the two unidirectional screws, respectively. The screw motor 13 drives the bidirectional screw to rotate inside the transverse slide groove, and the screw motor 13 drives the unidirectional screw to rotate inside the longitudinal slide groove. A clamping slider 14 is screwed on the two opposite external thread segments on the outer side of the bidirectional screw, and a clamping slider 14 is screwed on the external thread segment of each unidirectional screw, respectively. The four clamping sliders 14 are arranged in a circular array relative to the axis of the second fixed disk, and the outer sides of the clamping slider 14 are respectively in sliding contact with the inner walls of the transverse slide groove and the longitudinal slide groove. A first arc surface is arranged on the end face of the clamping slider 14 on one side facing the axis of the second fixed disk, and a row of equidistant rotating clamping columns 15 are rotatably arranged on the first arc surface, and an anti-slip pad is fixedly sleeved on the outer side of the rotating clamping column 15.

[0042] By setting the rotating clamping column 15 on the clamping slider 14, the shaft forging can be better rotated. By setting the anti-slip pad and the support pad 9, the clamping part of the shaft forging can be better protected to prevent the clamping device from wearing the outer wall of the shaft forging.

[0043] A square second sliding groove is arranged at the right end of the upper end surface of the support box 1, and the first sliding assembly 6 is arranged inside the second sliding groove. The first sliding assembly 6 includes a second support plate, two sliding guide rails, and a linear motor. The two sliding guide rails parallel to each other are fixedly arranged at the inner bottom surface of the second sliding groove, and the linear guide rails are arranged horizontally along the left and right directions. The second support plate is a horizontally arranged square plate-like structure. The second support plate is slidably sleeved on the upper ends of the two sliding guide rails. A linear motor is arranged between the lower end surface of the second support plate and the inner bottom surface of the second sliding groove. The fixed end of the linear motor is fixedly connected to the inner bottom surface of the second sliding groove, and the movable end of the linear motor is fixedly connected to the lower end surface of the second support plate. The second support plate is driven to slide horizontally along the left and right directions on the sliding guide rails through the action of the linear motor. The lower end of the second fixed plate of the limit support mechanism 5 is fixedly arranged at the upper end of the second support plate. When sliding, the second support plate drives the limit support mechanism 5 as a whole to slide horizontally along the left and right directions.

[0044] A lifting groove is arranged in the middle of the upper end surface of the support box 1, and the lifting support mechanism 3 is arranged inside the lifting groove, and a detachable blocking cover plate 10 is arranged at the upper end notch of the lifting groove. The lifting support mechanism 3 includes a hydraulic lifting cylinder, a lifting seat 16, and a supporting top block 17. A hydraulic lifting cylinder is fixedly arranged at the inner bottom surface of the lifting groove, and the piston rod of the hydraulic lifting cylinder is vertically upward. A horizontal lifting seat 16 is fixedly arranged at the end of the piston rod of the hydraulic lifting cylinder, and a supporting top block 17 is fixedly arranged at the upper end of the lifting seat 16. A second arc surface is arranged on the upper end surface of the supporting top block 17, and the axis of the second arc surface is arranged horizontally along the left and right directions; a row of anti-skid convex strips 18 are fixedly arranged on the second arc surface, and a row of anti-skid convex strips 18 are arranged equidistantly along the circumferential direction of the second arc surface, and the anti-skid convex strips 18 are extended along the left and right horizontal directions. An axis detection component is arranged at the upper end of the anti-skid convex strip 18, and the axis detection component includes a support detection roller 19, a hydraulic push rod 21, and a support connection block 20. Two left and right roller grooves are arranged at the upper end surface of the anti-skid convex strip 18, and a support detection roller 19 is rotatably arranged at each roller groove. The axis of the support detection roller 19 is horizontally arranged along the left and right directions, and the outer cylindrical surface of the support detection roller 19 extends to the outside of the opening of the roller groove; two left-right symmetrical hydraulic push rods 21 are fixedly arranged inside each roller groove, and the hydraulic push rods 21 are arranged along the radial direction of the second circular arc surface. One end of the cylinder bottom of the hydraulic push rod 21 is fixedly connected to the inner bottom surface of the roller groove, and a support connection block 20 is fixedly arranged at one end of the piston rod of the hydraulic push rod 21, and the support detection roller 19 is rotatably arranged between the two support connection blocks 20.

[0045] A pressure sensor is provided in the hydraulic push rod 21. The model of the pressure sensor is P3297. The pressure sensor utilizes the piezoresistive effect. When the material is subjected to mechanical stress, its resistance value will change. The pressure is determined by measuring the change in resistance value. The detection value of the pressure sensor in the axis detection assembly can be used to determine the curved surface of the shaft forging, and the center position of the shaft forging is derived through this value. The shaft forging is then lifted to a suitable position in cooperation with the lifting seat 16 lifted by the hydraulic lifting cylinder, thereby completing the centering of the shaft forging, making the subsequent positioning and clamping of the shaft forging more convenient.

[0046] The oiling mechanism 4 further includes an abutment plate 22. The abutment plate 22 and the sliding seat 23 are both annular structures located in the front and rear vertical planes. The abutment plate 22 and the sliding seat 23 are coaxially arranged, and the abutment plate 22 is fixed to the sliding seat 23 by a plurality of fixing bolts. The oiling swivel 24 is rotatably arranged between the sliding seat 23 and the abutment plate 22. A second transmission gear ring is fixedly arranged on the outer cylindrical surface of the oiling swivel 24, and a second transmission gear 28 is rotatably arranged inside the sliding seat 23. The second transmission gear ring and the second transmission gear 28 are meshed with each other. A second motor 25 is fixedly arranged on the outer surface of the sliding seat 23, and the output shaft of the second motor 25 is fixedly connected to the second transmission gear 28. The second motor 25 drives the oiling swivel 24 to rotate on the sliding seat 23 through the second transmission gear 28 and the second transmission gear ring that are meshed with each other.

[0047] The third sliding assembly 8 includes a third guide rod, a third threaded rod, and a third sliding motor. A fixed third guide rod and a rotatable third threaded rod are respectively arranged at the front and rear ends of the upper end surface of the support box 1. The third guide rod and the third threaded rod are both arranged horizontally along the left and right directions. A third sliding motor is also fixedly arranged on the upper end surface of the support box 1. The output shaft of the third sliding motor is fixedly connected to one end of the third threaded rod, and the third threaded rod is driven to rotate by the third sliding motor. The sliding seat 23 and the abutment plate 22 are both slidably sleeved on the outside of the third guide rod and the third threaded rod, and the sliding seat 23 is screwed to the third threaded rod. When the third sliding motor drives the third threaded rod to rotate, the oiling mechanism 4 slides horizontally along the left and right directions as a whole.

[0048] Three infrared detection blocks 27 are fixedly arranged on the inner cylindrical surface of the oiling swivel 24 . The three infrared detection blocks 27 are arranged in a circular array along the axis of the oiling swivel 24 .

[0049] The oiling assembly 26 is disposed between the two infrared detection blocks 27 , and includes an engaging fixing seat 29 , a first swing arm 30 , a second swing arm 32 , an oil storage box 33 , an oiling sleeve block 34 , and a cleaning sleeve block.

[0050] The meshing fixed seat 29 is fixedly arranged on the inner cylindrical surface of the oiled rotating ring 24 between the two infrared detection blocks 27. A driving gear and two driven gears are rotatably arranged inside the meshing fixed seat 29. The two driven gears are located on both sides of the driving gear and mesh with the driving gear. The axes of the driving gear and the driven gear are arranged horizontally along the left and right directions. A third motor 31 is fixedly arranged on the meshing fixed seat 29. The output shaft of the third motor 31 is fixedly connected to the driving gear. The driving gear is driven to rotate by the third motor 31, and the driving gear drives the two driven gears to rotate in opposite directions. A first swing rod 30 and a second swing rod 32 are respectively fixedly arranged on the two driven gears. The first swing rod 30 and the second swing rod 32 are both arc-shaped rod structures.

[0051] A cleaning sleeve block is fixedly arranged at one end of the first swing arm 30 away from the driven gear, and an oiling sleeve block 34 is fixedly arranged at one end of the second swing arm 32 away from the driven gear. The cleaning sleeve block and the oiling sleeve block 34 are both cylindrical structures, and the axes of the cleaning sleeve block and the oiling sleeve block 34 are arranged horizontally along the left-right direction.

[0052] The outer wall of the oiling sleeve block 34 is provided with a plurality of oiling bristles 36 at equal intervals. By providing the oiling bristles 36 on the oiling sleeve block 34, the oil can be more evenly applied to the shaft forgings.

[0053] An oil storage box 33 is fixedly arranged on the outside of the second swing arm 32, and an oil discharge hole for connecting the oil coating block 34 and the oil storage box 33 is arranged on the second swing arm 32 between the oil coating block 34 and the oil storage box 33. A square movable hole is arranged on the inside of the oil coating block 34, and the oil discharge hole is connected with the movable hole. The oil in the oil storage box 33 is introduced into the movable hole of the oil coating block 34 through the oil discharge hole. A square oil outlet groove 38 is arranged at both ends of the movable hole along the axis of the oil coating block 34, and the oil outlet groove 38 extends along the radial direction of the oil coating block 34. The width of the movable hole is greater than the width of the oil outlet groove 38, and the movable hole is connected with the end faces of both ends of the oil coating block 34 through the oil outlet grooves 38 at both ends. A circular oil storage chamber is also provided inside the oiling sleeve block 34, and the oil storage chamber is sleeved on the outside of the movable hole. An oil inlet 39 is provided at the left and right ends of the oil storage chamber, and the oil storage chamber is connected to the end faces of the oiling sleeve block 34 through the oil inlets 39 at both ends. A circular blocking plate 35 is slidably provided at the end faces of both ends of the oiling sleeve block 34, and the blocking plate 35 slides along the extension direction of the oil outlet groove 38. The blocking plate 35 is provided with a square oil inlet connecting groove 41 on the end face of one side facing the oiling sleeve block 34. The oil outlet groove 38 and the oil inlet 39 on the oiling sleeve block 34 correspond to the oil inlet connecting groove 41 on the blocking plate 35 on the same side.

[0054] A movable oil drain plate is slidably arranged inside the movable hole of the oiling sleeve block 34. The movable oil drain plate includes a main body in the middle and extensions at both ends. A through hole is arranged at the center of the main body. The outer edge of the main body maintains sliding contact with the inner wall of the movable hole. The extensions at both ends pass through the oil outlet groove 38 on the same side and are fixedly connected to one end of the oil inlet connecting groove 41 on the same side close to the axis of the blocking plate 35. The extensions maintain sliding contact with the inner wall of the oil outlet groove 38. A lifting spring 40 is fixedly arranged between the movable oil drain plate and the bottom surface of the movable hole on the side close to the axis of the oiling sleeve block 34.

[0055] When the lifting spring 40 is in a free extension state, the extended parts on both sides of the movable oil drain plate contact the inner wall of the oil outlet groove 38 away from the oil coating sleeve block 34, and the sealing plate 35 slides to the outside of the end faces of both ends of the oil coating sleeve block 34. At this time, the oil inlet 39 and the oil outlet groove 38 are blocked by the movable oil drain plate and cannot be connected. The oil inside the movable hole of the oil coating sleeve block 34 cannot enter the oil storage cavity through the oil inlet 39.

[0056] The oil outlet wall of the oil storage chamber is provided with oiling holes at equal intervals, and the oil outlet wall of the oil storage chamber is provided with a barrier and leak-proof membrane, which is composed of an oil unloading membrane 42 and a barrier membrane. The oil unloading membrane 42 is provided with anti-drip oil unloading holes at equal intervals, and the barrier membrane is provided with an oil unloading protrusion 37 extending into the oiling hole, and the oil unloading protrusion 37 is provided with an abutment sheet. By setting the oil unloading membrane 42 and the anti-drip oil unloading hole, the surface tension of the liquid can be utilized to prevent the oil from dripping out. By setting the oil unloading protrusion 37 on the barrier membrane, the abutment of the abutment sheet can be ensured when the oil unloading protrusion 37 is not squeezed by external force, so that the abutment sheet blocks the dripping of oil, thereby further preventing the oil from being thrown out and ensuring the oil outlet efficiency of the oil smearing.

[0057] The present invention provides a method for using a fixing device for clamping a shaft forging, comprising the following steps:

[0058] Step one, first connect the power supply to the motor and electrical components of the device, then fill the oil into the oil storage box 33, then operate the first sliding assembly 6 and the second sliding assembly 7, so that the first threaded rod rotates to push the limit support mechanism 5 to one side of the support box 1, so that the linear motor drives the rotation adjustment mechanism 2 to slide to the other side of the support box 1, and then start the third sliding motor to make the third threaded rod rotate to drive the oiling mechanism 4 to slide to the side end of the rotation adjustment mechanism 2, then move the blocking cover plate 10 at the upper end of the lifting groove, and start the hydraulic lifting cylinder to lift the lifting support machine.

[0059] Step two, then place the shaft forging on the support top block 17 of the lifting support mechanism 3, at this time, the axis detection assembly on the support top block 17 is lifted up and abuts against the shaft forging, and when abutting and pressing, the pressure sensor in the hydraulic push rod 21 will use the piezoresistive effect to determine the size of the pressure, and the detection value of the pressure sensor in the axis detection assembly can be used to judge the curved arc surface of the shaft forging, and the center position of the shaft forging is derived through this value, and then the lifting seat 16 lifted by the hydraulic lifting cylinder is cooperated to lift the shaft forging to the centering clamping position, thereby completing the centering of the shaft forging, making the subsequent positioning and clamping of the shaft forging more convenient.

[0060] Step three, then start the first sliding assembly 6, the second sliding assembly 7 and the third sliding assembly 8 again, so that the oiling mechanism 4 is slidably sleeved on the shaft forging, and the rotating adjustment mechanism 2 and the limit support mechanism 5 are located on both sides of the shaft forging, and then the three-jaw chuck on the rotating adjustment mechanism 2 is tightened to clamp the end of the shaft forging, and then the screw motor 13 on the limit support mechanism 5 is adjusted to make the bidirectional screw and the two unidirectional screws rotate to drive the clamping slider 14 to press and fit the shaft forging, and the rotating clamping column 15 on the clamping slider 14 can make the shaft forging rotate better, and the setting of the anti-slip pad and the support pad 9 can better protect the clamping part of the shaft forging and prevent the clamping device from wearing the outer wall of the shaft forging.

[0061] Step four, then lower the lifting support mechanism 3, and re-place the blocking cover 10 to complete the storage and placement of the lifting support mechanism 3, and then continue to adjust the oiling mechanism 4 so that the oiling mechanism 4 slides back and forth on the support box 1, and drives the oiling swivel 24 to rotate through the meshing transmission of the second transmission gear ring and the second transmission gear 28. The infrared detection block 27 on the oiling swivel 24 can better detect the shaft forgings, thereby recording the length, diameter and other values ​​of the shaft forgings.

[0062] Step five, finally start the third motor 31 on the oiling assembly 26, so that the driving gear drives the two driven gears to deflect, so that the first swing arm 30 and the second swing arm 32 are offset and finally abut against the shaft forging, and the cleaning sleeve block at the end of the first swing arm 30 and the oiling sleeve block 34 at the end of the second swing arm 32 are both in contact with the shaft forging. At this time, the oiling sleeve block 34 applies oil to the shaft forging, the cleaning sleeve block cleans the shaft forging, and applies the oil again. When the plugging plate 35 on the oiling sleeve 34 contacts the shaft forging, the plugging plate 35 slides under the pressure of the shaft forging and coincides with the axis of the oiling sleeve 34. At this time, the lifting spring 40 is compressed, and the oil outlet groove 38 and the oil inlet 39 are connected to the oil inlet connecting groove 41 on the plugging plate 35, so that the oil inside the movable hole of the oiling sleeve 34 can pass through the oil outlet groove 38, the oil inlet connecting groove 41, and the oil inlet 39 in sequence to enter the oil storage cavity. The setting of the movable oil drain plate can provide oil to the oil storage cavity when the oiling sleeve 34 is pressed against the shaft forging, and close and disconnect the connection between the oil storage cavity and the oil storage box 333 at other times. The setting of the oil unloading film 42 and the anti-drip oil unloading hole can utilize the effect of liquid surface tension to prevent the oil from dripping out. By setting the oil unloading protrusion 37 on the barrier film, the abutment of the abutment sheet can be ensured when the oil unloading protrusion 37 is not squeezed by external force, so that the abutment sheet blocks the dripping of oil, thereby further preventing the oil from being thrown out and ensuring the oil discharge efficiency of the oil smear.

[0063] Step six, then push out the lifting support mechanism 3 again to support the shaft forging, then release the clamping and fixation of the shaft forging by the rotating adjustment mechanism 2 and the limit support mechanism 5, and return to the initial position, then lift up the shaft forging again, take away the shaft forging and disconnect the power supply, and now the fixing device for the shaft forging is complete.

[0064] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A fixing device for clamping shaft forgings, characterized in that: The invention comprises a support box (1), wherein a rotation adjustment mechanism (2) and a position limiting support mechanism (5) are respectively arranged at the left and right ends of the upper end surface of the support box (1), an oiling mechanism (4) is arranged between the rotation adjustment mechanism (2) and the position limiting support mechanism (5), and a lift support mechanism (3) that can be lifted and lowered is also arranged at the upper end surface of the support box (1), the position limiting support mechanism (5) is slidably arranged on the support box (1) through a first sliding assembly (6), and the rotation adjustment mechanism (2) is slidably arranged on the support box (1) through a second sliding assembly (7). On the support box (1), the oiling mechanism (4) is slidably arranged on the support box (1) via a third sliding assembly (8); the rotation adjustment mechanism (2) comprises a rotatable three-jaw chuck, the position limiting support mechanism (5) comprises a plurality of clamping slide blocks (14) that move in opposite directions, the oiling mechanism (4) comprises a sliding seat (23), an annular oiling swivel (24) is rotatably arranged on the sliding seat (23), and an infrared detection block (27) and an oiling assembly (26) are arranged on the inner cylindrical surface of the oiling swivel (24); The rotation adjustment mechanism (2) comprises a first fixed disk, a rotating disk (11), and a first motor (12); the rotating disk (11) is rotatably arranged on an end surface of the first fixed disk facing the position limiting support mechanism (5); a first transmission gear ring is fixedly arranged on an outer cylindrical surface of the rotating disk (11); the first motor (12) is fixedly arranged on the first fixed disk; a first transmission gear is fixedly arranged on an output shaft of the first motor (12); the first transmission gear is meshed with the first transmission gear ring; and the three-jaw chuck is fixedly arranged on an end surface of the rotating disk (11) facing the position limiting support mechanism (5); The second sliding assembly (7) comprises a first support plate, a first guide rod, a first threaded rod, and a first sliding motor; two front and rear first sliding grooves are arranged at the left end of the upper end surface of the support box (1); a first threaded rod is rotatably arranged inside one of the first sliding grooves, and a first guide rod is fixedly arranged inside the other first sliding groove; a first sliding motor is fixedly arranged on the left end surface of the support box (1); an output shaft of the first sliding motor is fixedly connected to the first threaded rod; two first support plates are fixedly arranged at the lower end of the first fixed plate; the two first support plates are vertically inserted into the two first sliding grooves downwardly; one of the first support plates is slidably sleeved on the outer side of the first guide rod, and the other first support plate is threadedly connected to the first threaded rod.

2. A fixing device for clamping shaft forgings according to claim 1, characterized in that: The position limiting support mechanism (5) comprises a second fixed disk, a clamping slider (14), a bidirectional screw and a unidirectional screw; a transverse slide groove and two longitudinal slide grooves are also provided on the end surface of the second fixed disk facing the rotation adjustment mechanism (2); a bidirectional screw is rotatably arranged inside the transverse slide groove, and a unidirectional screw is rotatably arranged inside the longitudinal slide groove; three screw motors (13) are fixedly arranged on the outer cylindrical surface of the second fixed disk, wherein the output shaft of one of the screw motors (13) is fixedly connected to one end of the bidirectional screw, and the output shaft of the remaining two screw motors (13) is fixedly connected to one end of the bidirectional screw. The output shaft of the rod motor (13) is fixedly connected to one end of the outer side of the two one-way screw rods, respectively; a clamping slider (14) is screwed on two external threaded sections with opposite rotation directions on the outer side of the two-way screw rods, respectively; a clamping slider (14) is screwed on the external threaded section of each one-way screw rod, respectively; the four clamping sliders (14) are arranged in a circular array relative to the axis of the second fixed disk; a first arc surface is arranged on the end surface of the clamping slider (14) on one side facing the axis of the second fixed disk, and a row of equidistant rotating clamping columns (15) are rotatably arranged on the first arc surface.

3. A fixing device for clamping shaft forgings according to claim 2, characterized in that: A square second sliding groove is arranged at the right end of the upper end surface of the support box (1), and the first sliding assembly (6) is arranged inside the second sliding groove; the first sliding assembly (6) comprises a second support plate, two sliding guide rails, and a linear motor, two sliding guide rails parallel to each other are fixedly arranged at the inner bottom surface of the second sliding groove, the second support plate is slidably sleeved on the upper ends of the two sliding guide rails, and the linear motor is arranged between the lower end surface of the second support plate and the inner bottom surface of the second sliding groove; the lower end of the second fixed plate is fixedly arranged on the upper end of the second support plate.

4. A fixing device for clamping shaft forgings according to claim 1, characterized in that: A lifting groove is provided in the middle of the upper end surface of the support box (1), and the lifting support mechanism (3) is provided inside the lifting groove, and the lifting support mechanism (3) comprises a hydraulic lifting cylinder, a lifting seat (16), and a supporting top block (17); a hydraulic lifting cylinder is fixedly provided at the inner bottom surface of the lifting groove, the piston rod of the hydraulic lifting cylinder is vertically upward, a horizontal lifting seat (16) is fixedly provided at the end of the piston rod of the hydraulic lifting cylinder, a supporting top block (17) is fixedly provided at the upper end of the lifting seat (16), and a second arc surface is provided on the upper end surface of the supporting top block (17); a row of anti-skid convex strips (18) are fixedly provided on the second arc surface, and an axis detection device is provided at the upper end of the anti-skid convex strips (18). The axis detection component comprises a support detection roller (19), a hydraulic push rod (21), and a support connection block (20); two left and right roller grooves are arranged at the upper end surface of the anti-slip convex strip (18); a support detection roller (19) is rotatably arranged at each roller groove; two left and right symmetrical hydraulic push rods (21) are fixedly arranged inside each roller groove; one end of the cylinder bottom of the hydraulic push rod (21) is fixedly connected to the inner bottom surface of the roller groove; one end of the piston rod of the hydraulic push rod (21) is fixedly arranged with a support connection block (20); and the support detection roller (19) is rotatably arranged between the two support connection blocks (20); a pressure sensor is arranged in the hydraulic push rod (21).

5. The fixing device for clamping shaft forgings according to claim 1, characterized in that: The oiling mechanism (4) further comprises an abutment plate (22); the abutment plate (22) is fixed on the sliding seat (23); the oiling rotating ring (24) is rotatably arranged between the sliding seat (23) and the abutment plate (22); a second transmission gear ring is fixedly arranged on the outer cylindrical surface of the oiling rotating ring (24); a second transmission gear (28) is rotatably arranged inside the sliding seat (23); the second transmission gear ring and the second transmission gear (28) are meshed with each other; a second motor (25) is fixedly arranged on the outer surface of the sliding seat (23); The output shaft of the motor (25) is fixedly connected to the second transmission gear (28); three infrared detection blocks (27) are fixedly arranged on the inner cylindrical surface of the oiling rotating ring (24), and the three infrared detection blocks (27) are arranged in a circular array along the axis of the oiling rotating ring (24); the oiling assembly (26) is arranged between the two infrared detection blocks (27), and the oiling assembly (26) comprises an engaging fixing seat (29), a first swing arm (30), a second swing arm (32), an oil storage box (33), an oiling sleeve block (34), and a cleaning sleeve block; The meshing fixed seat (29) is fixedly arranged on the inner cylindrical surface of the oiling rotating ring (24) between the two infrared detection blocks (27); a driving gear and two driven gears are rotatably arranged inside the meshing fixed seat (29); the two driven gears are located on both sides of the driving gear and mesh with the driving gear; a third motor (31) is fixedly arranged on the meshing fixed seat (29); an output shaft of the third motor (31) is fixedly connected to the driving gear; a first swing rod (30) and a second swing rod (32) are respectively fixedly arranged on the two driven gears; a cleaning sleeve block is fixedly arranged on an end of the first swing rod (30) away from the driven gear; and an oiling sleeve block (34) is fixedly arranged on an end of the second swing rod (32) away from the driven gear; and a plurality of oiling bristles (36) are equidistantly arranged on the outer wall of the oiling sleeve block (34).

6. A fixing device for clamping shaft forgings according to claim 5, characterized in that: The third sliding assembly (8) comprises a third guide rod, a third threaded rod, and a third sliding motor. A fixed third guide rod and a rotatable third threaded rod are respectively arranged at the front and rear ends of the upper end surface of the support box (1). The third sliding motor is also fixedly arranged on the upper end surface of the support box (1). The output shaft of the third sliding motor is fixedly connected to one end of the third threaded rod. The sliding seat (23) and the abutment plate (22) are both slidably sleeved on the outside of the third guide rod and the third threaded rod, and the sliding seat (23) is threadedly connected to the third threaded rod.

7. A fixing device for clamping shaft forgings according to claim 5, characterized in that: An oil storage box (33) is fixedly arranged on the outer side of the second swing rod (32); an oil discharge hole for connecting the oil coating block (34) and the oil storage box (33) is provided on the second swing rod (32) between the oil coating block (34) and the oil storage box (33); a square movable hole is provided on the inner side of the oil coating block (34); the oil discharge hole is connected to the movable hole; a square oil outlet groove (38) is provided at both ends of the movable hole; a circular oil storage cavity is also provided on the inner side of the oil coating block (34); An oil inlet (39) is provided at each of the left and right ends. A circular sealing plate (35) is slidably provided at each of the end surfaces of the oiling sleeve (34). A square oil inlet connecting groove (41) is provided on the end surface of the sealing plate (35) facing the oiling sleeve (34). The oil outlet groove (38) and the oil inlet (39) on the oiling sleeve (34) correspond to the oil inlet connecting groove (41) on the sealing plate (35) on the same side. A sliding oil inlet (41) is provided inside the movable hole of the oiling sleeve (34). A movable oil drain plate, the movable oil drain plate comprises a main body portion in the middle and extension portions at both ends, a through hole is arranged at the center of the main body portion, the outer edge of the main body portion is in sliding contact with the inner wall of the movable hole, the extension portions at both ends pass through the oil outlet groove (38) on the same side and are fixedly connected to the oil inlet connecting groove (41) on the same side near the axis of the sealing plate (35), and the extension portions are in sliding contact with the inner wall of the oil outlet groove (38); the movable oil drain plate and the movable hole are in sliding contact with the inner wall of the oil coating sleeve (34) on the side of the axis A lifting spring (40) is fixedly arranged between the bottom surfaces; when the lifting spring (40) is in a freely extended state, the extension parts on both sides of the movable oil drain plate contact the inner wall of the oil outlet groove (38) away from the oil coating sleeve block (34), and the blocking plate (35) slides to the outside of the end surfaces at both ends of the oil coating sleeve block (34). At this time, the oil inlet (39) and the oil outlet groove (38) are blocked by the movable oil drain plate and cannot be connected, and the oil in the movable hole of the oil coating sleeve block (34) cannot enter the oil storage cavity through the oil inlet (39).

8. A fixing device for clamping shaft forgings according to claim 7, characterized in that: The oil outlet wall of the oil storage chamber is provided with oil application holes at equal intervals, and the oil outlet wall of the oil storage chamber is provided with a barrier and anti-leakage membrane, which is composed of an oil unloading membrane (42) and a barrier membrane. The oil unloading membrane (42) is provided with anti-drip oil unloading holes at equal intervals, and the barrier membrane is provided with an oil unloading protrusion (37) extending into the oil application hole. The oil unloading protrusion (37) is provided with an abutment sheet. By providing the oil unloading membrane (42) and the anti-drip oil unloading hole, the surface tension of the liquid can be utilized to prevent the oil from dripping out. By providing the oil unloading protrusion (37) on the barrier membrane, the abutment sheet can be ensured to abut when the oil unloading protrusion (37) is not squeezed by an external force, so that the abutment sheet blocks the oil from dripping out, thereby further preventing the oil from being thrown out and ensuring the oil application efficiency.

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