Self-lubricating taper pin and machining equipment thereof

Abstract

The invention relates to the technical field of conical pins, and discloses a self-lubricating conical pin and machining equipment thereof.The self-lubricating conical pin comprises a shaft body, two fixing pieces are installed at the top end of the shaft body, and a pin shaft is connected to the bottom end of the shaft body; a lubricating assembly is arranged on the shaft body and comprises a sleeve, a piston and an internal thread cylinder; the lubricating assembly further comprises a self-lubricating part, and the self-lubricating part can drive the piston to automatically extrude out lubricating grease when lubrication between the sleeve and the structural hinge is insufficient. The lubricating assembly further comprises a display part. Through the arrangement of the lubricating assembly, the piston can extrude lubricating grease and supplement the lubricating grease to the contact part of the sleeve and the structural hinge through the oil duct, the annular groove and the overflow groove, so that the technical effect of continuous lubrication is achieved; through the arrangement of the self-lubricating part, when lubrication of the sleeve and the structural hinge is insufficient, the piston can be automatically driven to extrude lubricating grease, and the technical effect of automatically responding to the lubrication requirement is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of tapered pins, and in particular to a self-lubricating tapered pin and processing equipment thereof. Background Art

[0002] As a key component for realizing rotation and connection in structural hinges, the tapered pin plays an important role in various machines and structures. Its main body is cylindrical, one end is frustum-shaped, and the other end has a slightly smaller diameter. Its surface is precisely machined to ensure the accuracy of fit. In structural hinges, the tapered pin is the core of connecting the fixed component and the rotating component. The fixed component is usually connected to the base structure or fixed frame to provide stable support, and the rotating component is connected to the part that needs to be movable and can rotate around the connection point. The connection between the two is achieved through the tapered pin. Pin holes are respectively provided on the fixed component and the rotating component. After the tapered pin is inserted into the two pin holes, the force and movement are transmitted by the close fit between the pin body and the pin hole, which not only ensures that the rotating component can rotate flexibly around the tapered pin, but also maintains the stability of the connection and the integrity of the structure. However, the existing technology has the following problems: Over extended use, the contact area between the tapered pin and the hinge is prone to lubrication failure. This occurs because the grease in this area gradually decreases or even runs out due to wear caused by continuous friction, environmental erosion, or a decrease in sealing performance, leading to poor lubrication. In this situation, direct friction between the metal surfaces of the tapered pin and the hinge not only accelerates component wear and produces harsh noises, but also widens the gap between the two, ultimately negatively impacting the stability and reliability of the hinge-tapered pin connection. Summary of the Invention

[0003] The purpose of the present invention is to provide a self-lubricating tapered pin and its processing equipment in order to solve the above problems, in order to overcome the defects of the existing tapered pin that, after long-term use, is prone to poor lubrication between it and the structural hinge due to loss of grease, causing wear, abnormal noise and unstable connection. See the following for details.

[0004] To achieve the above objectives, the present invention provides the following technical solutions: The present invention provides a self-lubricating tapered pin, comprising: a shaft body, two fixing plates being installed on the top end of the shaft body, and a pin shaft being connected to the bottom end of the shaft body; a lubrication assembly being provided on the shaft body, the lubrication assembly comprising a sleeve, a piston and an internal threaded cylinder, the sleeve being rotatably connected to the outer wall of the shaft body, the internal threaded cylinder being rotatably connected to the inner wall of the sleeve, the interior of the shaft body being capable of being filled with grease, the shaft body being provided with two oil passages, an annular groove being provided on the sleeve, a plurality of overflow grooves being provided between the annular groove and the outer wall of the sleeve, and the piston being used for extruding grease; the lubrication assembly also comprising a self-lubricating part, which can drive the piston to automatically extrude grease when there is insufficient lubrication between the sleeve and the structural hinge; the lubrication assembly also comprising a display part for displaying the remaining grease in the shaft body.

[0005] Preferably, the lubrication assembly further comprises a rotating shaft, which is rotatably mounted on the shaft body, a key shaft being connected to the rotating shaft, the piston being slidingly connected to the key shaft, and a threaded stump being provided on the piston, which is threadedly connected to the internal threaded barrel.

[0006] Preferably, the two oil passages are both connected to the annular groove, an oil filling port is provided in the pin shaft, and a one-way valve is provided in the oil filling port of the pin shaft and the two oil passages respectively.

[0007] Preferably, the self-lubricating part includes two external fixing blocks and two internal fixing blocks, the two external fixing blocks are fixedly mounted on the sleeve, the two internal fixing blocks are fixedly mounted on the shaft body, arc springs are respectively connected between the two external fixing blocks and the two internal fixing blocks, an elastic telescopic rod is installed in the external fixing block, a ratchet block is connected to the elastic telescopic rod, the outer wall of the internal threaded cylinder is connected to a ratchet ring, and the two ratchet blocks are unidirectionally engaged with the ratchet ring.

[0008] Preferably, the self-lubricating portion further includes a locking head, which is threadedly mounted on the shaft body and abuts against the rotating shaft.

[0009] Preferably, the display part includes a worm, which is rotatably installed in the shaft body, the worm is connected to a gear, the outer wall of the internal threaded cylinder is connected to a gear ring, the gear ring is meshed with the gear, a screw is rotatably installed in the shaft body, a worm wheel is installed on the screw, the worm wheel is meshed with the worm, a slider is slidably connected in the shaft body, a slide rod is slidably connected to the inner wall of the slider, the top end of the slide rod is connected to a pointer block, a sliding tongue is provided at the bottom end of the slide rod, a compression spring is provided between the pointer block and the slider, the screw rod is provided with a threaded groove, and the sliding tongue of the slide rod is slidably connected to the threaded groove of the screw rod.

[0010] Preferably, a scale plate is mounted on the shaft, and the slide rod is slidably connected to the scale plate.

[0011] Preferably, a pull ring is provided on the top of the pointer block, and scale lines are provided on the scale plate.

[0012] Preferably, it further includes a shaft shoulder, a fixing pin is slidably connected through the shaft shoulder, a through hole is provided on the pin shaft, the pin shaft can be inserted into the shaft shoulder, and the fixing pin can be inserted into the through hole of the pin shaft.

[0013] A self-lubricating tapered pin processing device includes an operating table, a mounting seat is installed on the operating table, and a spindle assembly, a tool feed assembly and a hole processing assembly are provided on the mounting seat. The spindle assembly is used to clamp and drive the shaft to rotate; the tool feed assembly is used to drive the tool to feed toward the shaft to complete the cutting process; the hole processing assembly completes the hole opening and internal thread processing. The beneficial effects are: 1. The self-lubricating tapered pin, through the setting of the lubrication component, enables the piston to squeeze out grease and replenish it to the contact part between the sleeve and the structural hinge through the oil channel, annular groove and overflow groove, achieving the technical effect of continuous lubrication and avoiding problems such as increased wear, abnormal noise and increased fit clearance caused by insufficient lubrication.

[0014] 2. The self-lubricating tapered pin, through the setting of the self-lubricating part, can automatically drive the piston to extrude grease when the sleeve and the structural hinge are insufficiently lubricated, thereby achieving the technical effect of automatically responding to lubrication needs, avoiding the trouble of frequent manual maintenance and failures caused by untimely lubrication; through the setting of the locking head, after removing the locking head, the piston can be manually driven to extrude grease or reset to replenish grease, and after installation, the rotating shaft and key shaft can be locked to enter the self-lubricating state, achieving the technical effect of flexibly switching between manual operation and automatic lubrication mode, avoiding the inconvenience of emergency operation that may occur when relying solely on automatic lubrication.

[0015] 3. The self-lubricating tapered pin, through the setting of the display part, allows the remaining grease in the shaft body to be intuitively displayed through the pointer block and the scale plate, achieving the technical effect of facilitating the judgment of the remaining grease and avoiding the situation where the grease is exhausted due to the inability to know the remaining amount. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 It is a schematic structural diagram of the self-lubricating tapered pin of the present invention; Figure 2It is a schematic diagram of the shaft structure of the present invention; Figure 3 It is a schematic structural diagram of the lubrication assembly of the present invention; Figure 4 It is a schematic diagram of the oil channel structure of the present invention; Figure 5 It is a schematic structural diagram of the self-lubricating portion of the present invention; Figure 6 It is a schematic diagram of the ratchet ring structure of the present invention; Figure 7 It is a schematic diagram of the rotating shaft structure of the present invention; Figure 8 It is a schematic structural diagram of the locking head of the present invention; Figure 9 It is a schematic structural diagram of the scale plate of the present invention; Figure 10 It is a schematic structural diagram of the display portion of the present invention; Figure 11 It is a schematic diagram of the screw rod structure of the present invention; Figure 12 It is a schematic diagram of the sliding rod structure of the present invention; Figure 13 It is a structural schematic diagram of the self-lubricating tapered pin processing equipment of the present invention.

[0018] The following are the descriptions of the reference numerals: 1. Shaft; 2. Fixing plate; 3. Pin; 4. Shaft shoulder; 5. Fixing pin; 6. Lubrication assembly; 61. Sleeve; 62. Rotating shaft; 63. Key shaft; 64. Piston; 65. Internally threaded barrel; 66. Oil passage; 67. Annular groove; 7. Self-lubricating part; 71. External fixing block; 72. Internal fixing block; 73. Arc spring; 74. Elastic telescopic rod; 75. Ratchet block; 76. Ratchet ring; 77. Locking head; 8. Display unit; 81. Worm; 82. Gear; 83. Ring gear; 84. Lead screw; 85. Worm gear; 86. Slider; 87. Slider; 88. Pointer block; 89. Scale plate; 11. Operating table; 12. Mounting base; 13. Spindle assembly; 14. Tool feed assembly; 15. Hole machining assembly. DETAILED DESCRIPTION

[0019] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other implementations obtained by ordinary technicians in this field without making any creative work are within the scope of protection of the present invention. Example 1

[0020] As the use time increases, the grease in the contact area between the tapered pin and the structural hinge is easily lost due to friction loss, environmental corrosion or seal failure, resulting in insufficient lubrication, causing direct friction between the metal contact surfaces of the tapered pin and the hinge, resulting in increased wear and abnormal noise. It will also increase the fitting clearance, affecting the stability and reliability of the connection between the structural hinge and the locating pin. This embodiment is specially invented to solve the above problems.

[0021] See also Figure 1 - Figure 2 A self-lubricating tapered pin comprises: a shaft body 1, two fixing plates 2 are installed on the top of the shaft body 1, and a pin shaft 3 is connected to the bottom end of the shaft body 1; the two fixing plates 2 are respectively equipped with screws, and the structural hinge is divided into a fixed component and a rotating component. The two fixing plates 2 are connected to the fixed component of the structural hinge through screws to achieve the effect of fixing the shaft body 1.

[0022] In this embodiment, please refer to Figure 2 - Figure 4 , a lubrication assembly 6 is provided on the shaft body 1, and the lubrication assembly 6 includes a sleeve 61, a piston 64 and an internal threaded cylinder 65. The sleeve 61 is rotatably connected to the outer wall of the shaft body 1, and the internal threaded cylinder 65 is rotatably connected to the inner wall of the sleeve 61. The interior of the shaft body 1 can be filled with grease, and the shaft body 1 is provided with two oil passages 66. An annular groove 67 is provided on the sleeve 61. The two oil passages 66 are both connected to the annular groove 67. A plurality of overflow grooves are provided between the annular groove 67 and the outer wall of the sleeve 61. The piston 64 is used to extrude the grease. When the piston 64 moves toward the oil passage 66, it pushes the grease. The grease flows into the annular groove 67 through the two oil passages 66, and then overflows to the contact part between the sleeve 61 and the hinge through the plurality of overflow grooves between the annular groove 67 and the outer wall of the sleeve 61, thereby replenishing the grease; For further information, see Figure 2 - Figure 3The lubrication assembly 6 also includes a rotating shaft 62, which is rotatably mounted on the shaft body 1. A key shaft 63 is connected to the rotating shaft 62, and a piston 64 is slidably connected to the key shaft 63. A threaded stump is provided on the piston 64, and the threaded stump of the piston 64 is threadedly connected to the internal threaded cylinder 65. After the shaft body 1 and the sleeve 61 are connected to the structural hinge, the sleeve 61 contacts the rotating member of the structural hinge. A cross slot is provided on the rotating shaft 62. The cross slot is rotated clockwise with a screwdriver to drive the rotating shaft 62 to drive the key shaft 63. When rotating clockwise, the key shaft 63 drives the piston 64 to rotate. At this time, the internal threaded barrel 65 does not rotate, and the key shaft 63 provides a guide for the piston 64, so that the piston 64 can slide axially along the key shaft 63. Therefore, the piston 64 uses the remaining thread teeth and the internal threaded barrel 65 to move toward the oil channel 66, so that the multiple overflow grooves of the sleeve 61 overflow grease, so that the grease is replenished to the contact part between the sleeve 61 and the rotating component of the structural hinge, thereby achieving a lubricating effect.

[0023] Also, see Figure 2 - Figure 6, the lubrication assembly 6 also includes a self-lubricating part 7, which can drive the piston 64 to automatically extrude grease when the lubrication between the sleeve 61 and the structural hinge is insufficient; the self-lubricating part 7 includes two external fixing blocks 71 and two internal fixing blocks 72, the two external fixing blocks 71 are fixedly mounted on the sleeve 61, and the two internal fixing blocks 72 are fixedly mounted on the shaft body 1, and arc springs 73 are respectively connected between the two external fixing blocks 71 and the two internal fixing blocks 72, an elastic telescopic rod 74 is installed in the external fixing block 71, and the elastic telescopic rod 74 is connected to a ratchet block 75, and the outer wall of the internal threaded cylinder 65 is connected to A ratchet ring 76 is connected, and the two ratchet blocks 75 are unidirectionally meshed with the ratchet ring 76. During use, when the rotating member rotates, it rotates on the sleeve 61. Since the shaft body 1 is fixed, the sleeve 61 does not rotate with the rotating member, which means that the lubrication effect is better. However, when the contact part between the sleeve 61 and the rotating member is not lubricated enough, the friction between the rotating member and the sleeve 61 increases, so that the rotating member drives the sleeve 61 to rotate. Since the rotating member rotates back and forth, the sleeve 61 will also rotate back and forth. When the sleeve 61 rotates, it drives the two outer fixed blocks 71 to move synchronously, so that one of them The cam 76 is engaged with the toothed member 74 and the toothed member 76 is engaged with the toothed member 75. When the cam 76 is engaged with the toothed member 75, the toothed member 76 is engaged with the toothed member 75 and the toothed member 76. When the cam 76 is engaged with the toothed member 75, the toothed member 76 is engaged with the toothed member 75. When the cam 76 is engaged with the toothed member 75, the toothed member 76 is engaged with the toothed member 75. When the cam 76 is engaged with the toothed member 75, the toothed member 76 is engaged with the toothed member 76. When the cam 76 is engaged with the toothed member 75, the toothed member 76 is engaged with the toothed member 76. The ratchet ring 76 is not driven to rotate during rotation. Therefore, when the contact part between the sleeve 61 and the rotating component is insufficiently lubricated, the internal threaded barrel 65 can intermittently rotate counterclockwise during the movement of the rotating component. When the internal threaded barrel 65 rotates, the piston 64 and the key shaft 63 do not rotate, so that the counterclockwise rotational movement of the internal threaded barrel 65 can be converted into the linear movement of the piston 64 along the key shaft 63, so that the piston 64 moves toward the direction close to the oil channel 66, thereby achieving the technical effect of squeezing out grease from the overflow groove of the sleeve 61 to ensure the lubrication effect between the sleeve 61 and the structural hinge.

[0024] In addition, see Figure 3 、 Figure 4, an oil filling port is provided in the pin shaft 3, and a one-way valve is provided in the oil filling port of the pin shaft 3 and the two oil passages 66. When grease needs to be added, first use a screwdriver to rotate the cross slot counterclockwise. According to the above principle, when the key shaft 63 drives the piston 64 to rotate counterclockwise, the piston 64 can move away from the oil passage 66 during the counterclockwise rotation, thereby achieving a reset effect. After the piston 64 is reset, the staff fills grease into the shaft body 1 through the oil filling port of the pin shaft 3. The one-way valves in the oil filling port and the two oil passages 66 play the role of one-way conduction and reverse cutoff, so that the grease can only flow in one direction.

[0025] It is worth noting that see Figure 7 、 Figure 8 The self-lubricating portion 7 also includes a locking head 77, which is threadedly mounted on the shaft body 1 and abuts against the rotating shaft 62. After installation, the locking head 77 can tightly abut against the rotating shaft 62, thereby locking the rotating shaft 62 so that the rotating shaft 62 and the key shaft 63 can no longer rotate in the shaft body 1, thereby preventing the piston 64 from rotating when the internal threaded cylinder 65 rotates, causing the piston 64 to be unable to effectively extrude grease. When it is necessary to reset the piston 64 or manually extrude grease, the locking head 77 can be removed to allow the cross groove of the rotating shaft 62 to leak out, and the rotating shaft 62 can be rotated with a screwdriver. A steering mark can be set on the shaft body 1 to prevent the staff from turning in the wrong direction.

[0026] It is worth noting that, please refer to Figure 1 - Figure 2 , and also includes a shoulder 4, a fixing pin 5 is slidably connected to the shoulder 4, and a through hole is provided on the pin shaft 3, the pin shaft 3 can be inserted into the shoulder 4, and the fixing pin 5 can be inserted into the through hole of the pin shaft 3. In the assembly process, the shaft body 1 and the sleeve 61 are first installed on the structural hinge, the shoulder 4 is put on the pin shaft 3, and the fixing pin 5 is pushed to insert into the through hole of the pin shaft 3, thereby achieving the effect of fixing the shoulder 4 on the pin shaft 3. The shoulder 4 can prevent the shaft body 1 from falling off from the hinge during use, thereby enhancing the connection stability of the overall structure. At the same time, the simple plug-in and pull-out operation also facilitates later maintenance and adjustment. Example 2

[0027] On the basis of Example 1, since the grease in the shaft body 1 needs to be replenished regularly and it is inconvenient for the staff to judge the remaining grease in the shaft body 1, this embodiment is specially invented to solve the above problem.

[0028] See also Figure 2 、 Figure 9 - Figure 12, the lubrication assembly 6 also includes a display part 8 for displaying the grease residue in the shaft body 1, the display part 8 includes a worm 81, the worm 81 is rotatably mounted in the shaft body 1, a gear 82 is connected to the worm 81, the outer wall of the internal threaded cylinder 65 is connected to a gear ring 83, the gear ring 83 is engaged with the gear 82, a screw 84 is rotatably mounted in the shaft body 1, a worm wheel 85 is mounted on the screw 84, the worm wheel 85 is engaged with the worm 81, a slider 86 is slidably connected in the shaft body 1, a slide bar 87 is slidably connected to the inner wall of the slider 86, a pointer block 88 is connected to the top of the slide bar 87, a sliding tongue is provided at the bottom end of the slide bar 87, a compression spring is provided between the pointer block 88 and the slider 86, the screw 84 is provided with a threaded groove, and the slide bar 87 The sliding tongue is slidably connected to the thread groove of the screw rod 84. When the internal threaded tube 65 rotates, the toothed ring 83 on its outer wall drives the meshing gear 82 to rotate, and the worm 81 connected to the gear 82 rotates accordingly. The worm 81 meshes with the worm wheel 85 and drives the screw rod 84 to rotate. The compression spring applies a pulling force to the pointer block 88 and the slide rod 87 in the direction close to the screw rod 84 to ensure that the sliding tongue is tightly against the thread groove. Since the thread groove cooperates with the sliding tongue, when the screw rod 84 rotates, it pushes the slider 86 to move along the axial direction of the screw rod 84. When the slider 86 moves, it drives the slide rod 87 to move, and the slide rod 87 drives the pointer block 88 to move synchronously. Therefore, the amount of grease in the shaft body 1 can be judged by the distance moved by the pointer block 88.

[0029] It is worth mentioning that see Figure 11 、 Figure 12 , a scale plate 89 is installed on the shaft body 1, and the slide rod 87 is slidably connected to the scale plate 89. A pull ring is provided on the top of the pointer block 88, and scale lines are provided on the scale plate 89. The scale lines on the scale plate 89 correspond to the remaining grease in the shaft body 1. By observing the scale pointed to by the pointer block 88, the remaining grease in the shaft body 1 can be intuitively judged. When the grease in the shaft body 1 is insufficient, it can be replenished in time. After replenishment is completed, the pointer block 88 is pulled up by the pull ring, so that the pointer block 88 drives the slide rod 87 and the sliding tongue to move away from the screw rod 84, so that the sliding tongue is disengaged from the thread groove. At this time, the position of the pointer block 88 can be manually moved to move the pointer block 88 to the starting scale of the scale line. After releasing the pull ring, the elastic force of the compression spring makes the sliding tongue fit tightly with the thread groove again. Example 3

[0030] See also Figure 1 、 Figure 13, a self-lubricating tapered pin processing equipment, including an operating table 11, a mounting seat 12 is installed on the operating table 11, and a spindle assembly 13, a tool feeding assembly 14 and a hole processing assembly 15 are provided on the mounting seat 12, the spindle assembly 13 is used to clamp and drive the shaft body 1 to rotate; the tool feeding assembly 14 is used to drive the tool to feed toward the shaft body 1 to complete the cutting process; the hole processing assembly 15 completes the hole opening and internal thread processing. The self-lubricating tapered pin processing equipment is used to process the shaft body 1 but is not limited to processing the shaft body 1. It can also be used to process other shaft parts. The spindle assembly 13 firmly fixes the shaft body 1 through a clamping structure such as a chuck, and drives the shaft body 1 to rotate at a set speed under the action of the driving device, providing basic movement for the cutting process; the tool feeding assembly 14 can be adjusted according to the processing requirements , driving the tool to feed the shaft body 1 accurately along the axial or radial direction, completing the cutting processes of outer circle, cone, step, etc., to ensure that the external dimensions of the shaft body 1 meet the design requirements; the hole processing component 15 is equipped with a drill and a tap, and through precise positioning and feeding, it processes through holes and blind holes that meet the specifications on the shaft body 1, and completes the internal thread processing to ensure the accuracy of the hole system and thread; this equipment can not only efficiently process the shaft body 1, but also rely on the versatility and adjustability of its components. It can also adapt to the processing of shaft parts of different diameters and lengths by replacing the clamping tooling, adjusting the tool type and parameters, and realizing multiple uses of one machine, which not only improves the utilization rate of the equipment, but also reduces the company's procurement cost of various special equipment, meets the diverse processing needs of shaft parts, and has strong practicality and economy.

[0031] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A self-lubricating tapered pin, characterized in that: include: A shaft body (1), wherein two fixing plates (2) are installed at the top end of the shaft body (1), and a pin shaft (3) is connected to the bottom end of the shaft body (1); The shaft body (1) is provided with a lubricating assembly (6), the lubricating assembly (6) comprising a sleeve (61), a piston (64) and an internal threaded cylinder (65), the sleeve (61) being rotatably connected to the outer wall of the shaft body (1), the internal threaded cylinder (65) being rotatably connected to the inner wall of the sleeve (61), the interior of the shaft body (1) being capable of being filled with grease, the shaft body (1) being provided with two oil passages (66), the sleeve (61) being provided with an annular groove (67), a plurality of overflow grooves being provided between the annular groove (67) and the outer wall of the sleeve (61), and the piston (64) being used for extruding the grease; The lubricating assembly (6) further includes a self-lubricating portion (7), which is capable of driving the piston (64) to automatically extrude grease when there is insufficient lubrication between the sleeve (61) and the structural hinge; The lubrication assembly (6) further includes a display portion (8) for displaying the remaining amount of lubricating grease in the shaft body (1).

2. A self-lubricating tapered pin according to claim 1, characterized in that: The lubrication assembly (6) further comprises a rotating shaft (62), the rotating shaft (62) being rotatably mounted on the shaft body (1), the rotating shaft (62) being connected to a key shaft (63), the piston (64) being slidably connected to the key shaft (63), the piston (64) being provided with threaded stumps, and the threaded stumps of the piston (64) being threadedly connected to the internal threaded barrel (65).

3. A self-lubricating tapered pin according to claim 2, characterized in that: The two oil passages (66) are both communicated with the annular groove (67), an oil filling port is provided in the pin shaft (3), and a one-way valve is provided in the oil filling port of the pin shaft (3) and the two oil passages (66), respectively.

4. A self-lubricating tapered pin according to claim 3, characterized in that: The self-lubricating portion (7) includes two external fixing blocks (71) and two internal fixing blocks (72), the two external fixing blocks (71) are fixedly mounted on the sleeve (61), the two internal fixing blocks (72) are fixedly mounted on the shaft body (1), an arc spring (73) is connected between the two external fixing blocks (71) and the two internal fixing blocks (72), an elastic telescopic rod (74) is installed in the external fixing block (71), a ratchet block (75) is connected to the elastic telescopic rod (74), the outer wall of the internal threaded cylinder (65) is connected to a ratchet ring (76), and the two ratchet blocks (75) are unidirectionally meshed with the ratchet ring (76).

5. A self-lubricating tapered pin according to claim 4, characterized in that: The self-lubricating portion (7) further includes a locking head (77), wherein the locking head (77) is threadedly mounted on the shaft body (1), and the locking head (77) abuts against the rotating shaft (62).

6. The self-lubricating tapered pin according to claim 5, characterized in that: The display part (8) includes a worm (81), the worm (81) is rotatably mounted in the shaft body (1), a gear (82) is connected to the worm (81), the outer wall of the internal threaded cylinder (65) is connected to a gear ring (83), the gear ring (83) is meshed with the gear (82), a screw (84) is rotatably mounted in the shaft body (1), a worm wheel (85) is mounted on the screw (84), the worm wheel (85) is meshed with the worm (81), a slider (86) is slidably connected in the shaft body (1), a slide rod (87) is slidably connected to the inner wall of the slider (86), the top end of the slide rod (87) is connected to a pointer block (88), a sliding tongue is provided at the bottom end of the slide rod (87), a compression spring is provided between the pointer block (88) and the slider (86), the screw rod (84) is provided with a thread groove, and the sliding tongue of the slide rod (87) is slidably connected to the thread groove of the screw rod (84).

7. The self-lubricating tapered pin according to claim 6, characterized in that: A scale plate (89) is mounted on the shaft body (1), and the slide rod (87) is slidably connected to the scale plate (89).

8. The self-lubricating tapered pin according to claim 7, characterized in that: A pull ring is provided on the top of the pointer block (88), and scale lines are provided on the scale plate (89).

9. The self-lubricating tapered pin according to claim 1, characterized in that: It also includes a shaft shoulder (4), a fixing pin (5) is slidably connected to the shaft shoulder (4), a through hole is provided on the pin shaft (3), the pin shaft (3) can be inserted into the shaft shoulder (4), and the fixing pin (5) can be inserted into the through hole of the pin shaft (3).

10. A self-lubricating tapered pin processing device, characterized in that: A self-lubricating tapered pin according to claim 1 comprises an operating table (11), a mounting seat (12) is mounted on the operating table (11), a spindle assembly (13), a tool feed assembly (14) and a hole processing assembly (15) are provided on the mounting seat (12), the spindle assembly (13) is used for clamping and driving the shaft (1) to rotate; the tool feed assembly (14) is used for driving the tool to feed toward the shaft (1) to complete the cutting process; and the hole processing assembly (15) completes the hole opening and internal thread processing.

Images