Valve oil seal pressing machine

Abstract

The invention relates to the technical field of valve oil seal press-fitting equipment, and particularly discloses a valve oil seal press-fitting machine which comprises a base, a mounting seat capable of overturning front and back is arranged on the base in a sliding manner, and an engine cylinder cover is arranged on the mounting seat; the press-fitting part comprises a driving plate and a pressing head, the driving plate is arranged above the mounting seat in a vertical sliding mode, a plurality of sliding seats capable of sliding left and right are arranged on the driving plate, and the pressing head is vertically arranged on the sliding seats; the variable-pitch part comprises a variable-pitch plate and a variable-pitch rod, the variable-pitch plate can be vertically arranged on the driving plate in a sliding manner, a plurality of groups of guide holes are formed in the variable-pitch plate, and each group of guide holes comprises two guide long holes which are symmetrical to each other and are obliquely formed; a variable-pitch rod is fixedly arranged on a sliding seat, a plurality of through holes are formed in the driving plate at intervals, and the variable-pitch rod penetrates out of the through holes and the guide long holes. The problems that according to a traditional valve oil seal pressing machine, it is difficult to achieve that one device is compatible with assembling of valve oil seals of various types, and some valve oil seals which are slightly deformed but do not affect use are prone to failing in installation are solved.

Description

Technical Field

[0001] The invention relates to the technical field of valve oil seal press-fitting equipment, and in particular to a valve oil seal press-fitting machine. Background Art

[0002] The engine valve oil seal is installed inside the engine's cylinder head. It is used to seal the gap between the valve stem and the valve guide, which can prevent the engine oil from entering the intake and exhaust pipes and avoid oil loss; ensure the stability of the pressure in the engine cylinder, prevent the leakage of the gasoline and air mixture and exhaust gas, avoid the engine oil from entering the combustion chamber, reduce the formation of carbon deposits, and maintain the normal operation of the engine; prevent unnecessary energy loss and improve fuel economy.

[0003] At present, the most commonly used method of pressing and installing the valve oil seals on the engine cylinder head is to use a valve oil seal press to install 4 or 8 valve oil seals at a time. However, this equipment is a special machine and is mostly used for pressing and installing a certain type of engine cylinder head. For engines of the same series but different displacements, the spacing and position of the intake valve guides or exhaust valve guides in the same cylinder are different, and thus it is difficult for a traditional valve oil seal press to achieve one device being compatible with the assembly of valve oil seals of multiple models. At the same time, due to production errors in the valve oil seals, or slight deformations during transportation and storage, after being installed in the valve guide head of the engine cylinder head, they are limited and corrected by the valve guide head, which will not affect the use effect after being installed in the valve stem. However, when installing this type of valve oil seal, since its edge protrudes from the valve guide head, it is difficult for traditional equipment to be directly pressed into the valve stem, and even worse, the valve oil seal is damaged, resulting in press-fitting failure. Summary of the invention

[0004] The purpose of the present invention is to provide a valve oil seal press, which solves the problems that it is difficult for a traditional valve oil seal press to achieve compatibility with valve oil seals of various models, and some valve oil seals with slight deformation but not affecting the use are very easy to fail in installation.

[0005] The present invention is implemented by the following technical scheme: a valve oil seal press machine, used for press-fitting the valve oil seal on the engine cylinder head, comprising a base, on which a mounting seat that can be flipped forward and backward is slidably arranged, and the engine cylinder head is arranged on the mounting seat;

[0006] A press-fitting part, the press-fitting part comprises a driving plate and a pressing head, the driving plate is vertically slidably arranged above the mounting seat, a plurality of sliding seats that can slide left and right are arranged on the driving plate, and the pressing head is vertically arranged on the sliding seat;

[0007] A pitch-changing member, the pitch-changing member comprising a pitch-changing plate and a pitch-changing rod, the pitch-changing plate being vertically slidably arranged on the driving plate, the pitch-changing plate being provided with a plurality of groups of guide holes, one group of the guide holes comprising two mutually symmetrical guide long holes, the guide long holes being inclinedly arranged;

[0008] A pitch-changing rod is fixedly arranged on the sliding seat, and a plurality of through holes are arranged at intervals on the driving plate. The aperture of the through hole is not less than the distance between the upper and lower ends of the guide long hole, and the pitch-changing rod passes through the through hole and the guide long hole.

[0009] Furthermore, the press fitting also includes a press rod, a driving hole is vertically arranged on the slide seat, the press rod slides through the driving hole, a limit cap is arranged at the upper end of the press rod, the limit cap is located above the slide seat, and the pressure head is arranged at the lower end of the press rod;

[0010] The outer wall of the pressure rod is provided with a spiral guide groove, and the slide seat is provided with a guide key, and the guide key is slidably placed in the guide groove.

[0011] Furthermore, a limit seat and a spring are also provided on the pressure rod, and the upper and lower ends of the spring are respectively in contact with the sliding seat and the limit seat.

[0012] Furthermore, it also includes a compensation tube and a pressure sensor, which are both slidably mounted on the pressure rod, and the upper and lower ends of the pressure sensor are respectively abutted against the compensation tube and the limit seat, and the upper end of the compensation tube is abutted against the lower end of the spring.

[0013] Furthermore, the lower end of the pressure head is arranged in a multi-stage frustum shape, and the valve oil seal sleeve is arranged on one of the frustums.

[0014] Furthermore, two first slide rails are arranged on the base along the front-rear direction, and a mounting base plate is slidably arranged on the two first slide rails;

[0015] A first push cylinder is also provided on the base, and a telescopic end of the first push cylinder is connected to the mounting base plate.

[0016] Furthermore, two hinge seats are arranged on the installation base plate at intervals, and the installation seat is hingedly connected to the two hinge seats;

[0017] It also includes a second push cylinder, the two ends of which are respectively hinged to the mounting base plate and one end of the mounting seat;

[0018] A servo motor is also arranged on the hinge seat, and the output end of the servo motor is coaxially connected with the rotating shaft of the mounting seat.

[0019] Furthermore, a support seat is vertically arranged on the base, a cantilever is arranged on the support seat, two second slide rails are vertically arranged on the support seat, and the drive plate is slidably arranged on the two second slide rails;

[0020] The cantilever is provided with a third push cylinder, and the telescopic end of the third push cylinder is connected to the driving plate.

[0021] Further, the driving plate is arranged vertically, and two third slide rails parallel to each other are arranged vertically and spaced apart on the front side panel of the driving plate, and a plurality of the slide seats at odd positions are slidably arranged on one of the third slide rails, and a plurality of the slide seats at even positions are slidably arranged on another third slide rail;

[0022] Two fourth slide rails are vertically arranged on the rear side panel of the driving plate, and the pitch changing plate is slidably arranged on the two fourth slide rails; a fourth push cylinder is also arranged on the driving plate, and the telescopic end of the fourth push cylinder is connected to the pitch changing plate.

[0023] Furthermore, a pulley is rotatably provided on the pitch change rod, and the pulley is rollingly placed in the guide long hole.

[0024] The technical solution of the present invention has at least the following advantages and beneficial effects:

[0025] 1. The first push cylinder drives the mounting base plate to slide forward and backward on the base, driving the engine cylinder head to move forward and backward. The second push cylinder controls the mounting base to flip on the two hinge seats, thereby driving the engine cylinder head on the mounting base to flip forward and backward. The cylinder heads of engines of different models can be adjusted so that the corresponding multiple air inlet holes or exhaust holes are in a vertical state and located directly below the pressure head.

[0026] 2. The pitch change plate is driven to move up and down on the rear side of the driving plate by the fourth push cylinder, thereby driving the vertical movement of the guide long hole. Since the pitch change rod can move left and right along with the slide on the driving plate, the part of the pitch change rod located in the guide long hole is driven by the guide long hole to make the slide slide on the third slide rail. The same group of guide long holes can control the corresponding two slides to move away from or close to each other, thereby controlling the distance between the two air inlet holes or air outlet holes on the same cylinder, making the pressure head coaxial with the valve guide below, and cooperating with the third push cylinder to drive the entire driving plate to be pressed down, the valve oil seal pressing operation of engine cylinders of different models can be realized.

[0027] 3. After the flip angle of the mounting base is preliminarily adjusted by the second push cylinder, the servo motor can be used for fine adjustment. The self-locking function of the servo motor can prevent the engine cylinder head from flipping during the press-fit operation and causing the valve guide head to be misaligned, thereby ensuring the position accuracy and stability of the valve guide head.

[0028] 4. When the pressure head brings the valve oil seal to dock with the valve guide head, the spring can prevent the valve oil seal from being damaged by excessive pressure. When the valve oil seal is slightly deformed and difficult to be directly pressed into the valve guide head, the pressure head brings the valve oil seal to be stuck in the hole of the valve guide head. At this time, the slide continues to move downward, compressing the spring. At the same time, the slide moves downward relative to the pressure rod, slides in the guide groove through the guide key, and then drives the pressure rod to rotate. During the rotation of the pressure rod, it brings the pressure head below to rotate around its axis, so as to make the valve oil seal rotate. The undeformed part of the valve oil seal first enters the valve guide head, and as the valve oil seal rotates and is pressed downward, the entire valve oil seal is finally screwed into the valve guide head. At the same time, if some undeformed valve oil seals with a large interference fit are installed, they can also be installed in this way.

[0029] 5. The pressure of the spring is monitored by a pressure sensor, and then the pressure acting on the valve oil seal is monitored, which can be used to determine whether the valve oil seal is installed in place; when the slide moves downward and several valve oil seals enter smoothly, the pressure change is within the preset range, and when the valve oil seal is stuck in the pipe opening of the valve guide head, the pressure on the valve oil seal will increase as the spring is compressed. If the subsequent valve oil seal is screwed into the valve guide head, it means that the installation is successful. If the pressure always exceeds the threshold when it is pressed down to the predetermined position, it means that the installation has failed, and the staff will be informed through the alarm that manual re-installation of the location is required. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 A schematic diagram of the three-dimensional structure of a valve oil seal press machine provided by the present invention;

[0032] Figure 2 A schematic diagram of the three-dimensional structure of a mounting seat and a base in a valve oil seal press assembly machine provided by the present invention;

[0033] Figure 3 A schematic diagram of the back structure of the matching distance-variable component and the press-fit component in a valve oil seal press-fitting machine provided by the present invention;

[0034] Figure 4 A schematic diagram of the structure of the matching between a pressure-changing rod and a press-fitting part in a valve oil seal press-fitting machine provided by the present invention;

[0035] Icons: 1. Base, 11. First slide rail, 12. Mounting base plate, 13. First push cylinder, 14. Support seat, 15. Cantilever, 2. Mounting seat, 21. Hinge seat, 22. Second push cylinder, 23. Servo motor, 3. Drive plate, 31. Through hole, 32. Second slide rail, 33. Third push cylinder, 4. Pressure head, 5. Slide seat, 51. Drive hole, 52. Third slide rail, 6. Pitch change plate, 61. Pitch change rod, 62. Guide long hole, 63. Fourth slide rail, 64. Fourth push cylinder, 65. Pulley, 7. Pressure rod, 71. Limit cap, 72. Guide groove, 73. Guide key, 74. Limit seat, 75. Spring, 76. Compensation tube, 77. Pressure sensor. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Reference Figures 1 to 4 As shown, this embodiment provides a valve oil seal press machine for press-fitting valve oil seals on engine cylinder heads, comprising a base 1 on which a mounting seat 2 that can be flipped forward and backward is slidably disposed, and the engine cylinder head is disposed on the mounting seat 2.

[0039] When implementing it, Figure 1 and 2 As shown, two first slide rails 11 are arranged on the base 1 along the front-to-back direction, and a mounting base plate 12 is slidably arranged on the two first slide rails 11; a first push cylinder 13 is also arranged on the base 1, and the telescopic end of the first push cylinder 13 is connected to the mounting base plate 12, and then the mounting base plate 12 is driven by the first push cylinder 13 to slide back and forth on the base 1, so as to realize the valve oil seal pressing operation of multiple cylinders on the front and rear sides of the engine cylinder head.

[0040] At the same time, if Figure 2As shown, two hinge seats 21 are arranged at intervals on the mounting base 12, and the mounting base 2 is hinged on the two hinge seats 21; it also includes a second push cylinder 22, and the two ends of the second push cylinder 2 are respectively hinged to the mounting base 12 and one end of the mounting base 2; the mounting base 2 is controlled to flip on the two hinge seats 21 through the second push cylinder 22, thereby driving the engine cylinder head on the mounting base 2 to flip forward and backward, which is mainly used for the multiple cylinders on the same side, and the intake valves and outlet valves located on the front and rear sides to perform valve oil seal pressing operations.

[0041] More specifically, a servo motor 23 is also provided on a hinge seat 21, and the output end of the servo motor 23 is coaxially connected to the rotating shaft of the mounting seat 2. After the flip angle of the mounting seat 2 is preliminarily adjusted by the second push cylinder 22, the servo motor 23 can be used for fine adjustment. The self-locking function of the servo motor 23 can prevent the engine cylinder head from flipping during the press-fitting operation and causing the valve guide to be misplaced, thereby ensuring the position accuracy and stability of the valve guide.

[0042] like Figure 1 , 3 As shown in 4, it also includes a pressing part, which includes a driving plate 3 and a pressing head 4. The driving plate 3 can be vertically slidably arranged above the mounting seat 2. During specific implementation, a support seat 14 is vertically arranged on the base 1, a cantilever 15 is arranged on the support seat 14, and two second slide rails 32 are vertically arranged on the support seat 14. The driving plate 3 is slidably arranged on the two second slide rails 32; a third push cylinder 33 is arranged on the cantilever 15, and the telescopic end of the third push cylinder 33 is connected to the telescopic driving plate 3, and the driving plate 3 is driven to move up and down on the second slide rail 32 through the third push cylinder 33.

[0043] like Figure 1 and 4 As shown, a plurality of slide seats 5 that can slide left and right are arranged on the driving plate 3, and a pressure head 4 is vertically arranged on the slide seat 5. In specific implementation, the driving plate 3 is arranged vertically, and two third slide rails 52 parallel to each other are vertically arranged on the front side panel of the driving plate 3. A plurality of slide seats 5 at odd positions are slidably arranged on one of the third slide rails 52, and a plurality of slide seats 5 at even positions are slidably arranged on the other third slide rail 52. The slide heads on the two third slide rails 52 are independent of each other and do not interfere with each other. Separate arrangement can also ensure that the structural strength of the slide seat 5 is ensured, so that the pressure heads 4 on two adjacent slide seats 5 can be closer or farther away from each other, and the press-fitting operation can be carried out when the spacing range between two intake valves or two outlet valves on the same cylinder is large or small, thereby meeting the actual use needs.

[0044] More specifically, Figure 4As shown, the lower end of the pressure head 4 is arranged in a multi-stage cone shape, and the valve oil seal sleeve is arranged on one of the cones. The pressure head 4 is a multi-stage cone, which can be sleeved with valve oil seals of various sizes. The pressure head 4 can also be replaced and used for the valve oil seal pressing operation at the valve of the cylinder head of different models of cylinders.

[0045] like Figure 1 and 4 As shown, the pressing part also includes a pressing rod 7, a driving hole 51 is vertically arranged on the slide 5, the pressing rod 7 slides through the driving hole 51, a limiting cap 71 is arranged on the upper end of the pressing rod 7, the limiting cap 71 is located above the slide 5, and is mainly used to prevent the pressing rod 7 from falling off, and the pressing head 4 is arranged at the lower end of the pressing rod 7; a spiral guide groove 72 is arranged on the outer wall of the pressing rod 7, and a guide key 73 is arranged on the slide 5, and the guide key 73 is slidably placed in the guide groove 72. During specific implementation, the third push cylinder 33 is used to drive the driving plate 3 to move downward, thereby driving several slides 5 to move downward. A limit seat 74 is also provided on the pressure rod 7, and the upper and lower ends of the spring 75 are respectively in contact with the slide 5 and the limit seat 74. Under the action of gravity, the slide 5 moves downward together with the pressure rod 7 and the pressure head 4. After the valve oil seal on the pressure head 4 is in contact with the valve guide head, the driving plate 3 is continued to be pressed downward, and then the slide 5 acts on the limit seat 74 and then on the pressure head 4 through the spring 75. The valve oil seal is driven into the corresponding valve guide head on the cylinder head through the first-level cone with a larger diameter above the cone where the valve oil seal on the pressure head 4 is located, and multiple valve oil seals in the same row can be pressed at the same time.

[0046] After installing multiple front valve oil seals on the same row of cylinders, the mounting seat 2 is controlled to flip slightly forward and backward, so that the head of the valve guide on which the valve oil seal is to be installed is in a vertical state. Combined with the first push cylinder 13, the mounting base plate 12 is pushed forward and backward on the base 1 to make the valve guide coaxial with the corresponding pressure head 4, and then multiple rear valve oil seals on the same row of cylinders are continued to be installed. At the same time, the front and rear valve oil seals on another row of cylinders can also be pressed in the same way.

[0047] like Figure 4As shown, when the pressure head 4 is docking with the valve guide head with the valve oil seal, the spring 75 can be used to prevent the valve oil seal from being damaged by excessive pressure. When the valve oil seal is slightly deformed and difficult to be directly pressed into the valve guide head, the pressure head 4 is stuck in the pipe opening of the valve guide head with the valve oil seal. At this time, the slide seat 5 continues to move downward, compressing the spring 75. At the same time, the slide seat 5 moves downward relative to the pressure rod 7, slides in the guide groove 72 through the guide key 73, and then drives the pressure rod 7 to rotate. During the rotation of the pressure rod 7, the pressure head 4 below is rotated around its axis, so that the valve oil seal can be rotated. The undeformed part of the valve oil seal first enters the valve guide head, and is pressed downward as the valve oil seal rotates, and finally the entire valve oil seal is screwed into the valve guide head. At the same time, if some undeformed valve oil seals with larger interference fit are installed, they can also be installed in this way. Since the valve oil seal will be immersed in engine oil for at least 10 minutes during installation, there is no need to worry about wear when the valve oil seal is driven to rotate.

[0048] like Figure 1 and 4 As shown, it also includes a compensation tube 76 and a pressure sensor 77. The pressure sensor 77 and the compensation tube 76 are both slidably mounted on the pressure rod 7. The upper and lower ends of the pressure sensor 77 are respectively abutted against the compensation tube 76 and the limit seat 74, and the upper end of the compensation tube 76 is abutted against the lower end of the spring 75. During specific implementation, since several slide seats 5 are distributed on two third slide rails 52 of unequal heights, and the sizes of springs 75 are consistent, the height of the pressure head 4 also needs to be guaranteed to be consistent, and then the compensation tube 76 is needed to compensate for the position height to ensure that the height of the pressure head 4 is consistent. At the same time, the elastic force of the spring 75 is also consistent, and the pressure of the spring 75 is monitored by the pressure sensor 77, and then the pressure acting on the valve oil seal is monitored, which can be used to determine whether the valve oil seal is installed in place; for example, when the slide seat 5 moves downward and several valve oil seals enter smoothly, the pressure change is within the preset range, and when the valve oil seal is stuck in the pipe opening of the valve guide head, the pressure on the valve oil seal will increase as the spring 75 is compressed. If the subsequent valve oil seal is screwed into the valve guide head, it means that the installation is successful. If the pressure always exceeds the threshold when it is pressed down to the predetermined position, it means that the installation has failed, and the staff is informed through the alarm that manual re-installation of the location is required.

[0049] More specifically, Figure 1 , 3As shown in 4, it also includes a pitch changing member, which includes a pitch changing plate 6 and a pitch changing rod 61. The pitch changing plate 6 can be vertically slidably arranged on the driving plate 3. A plurality of groups of guide holes are arranged on the pitch changing plate 6. A group of guide holes includes two mutually symmetrical guide long holes 62. The guide long holes 62 are inclined, so that the two guide long holes 62 in the same group are in an eight-shaped shape; a pitch changing rod 61 is fixedly arranged on a sliding seat 5, and a plurality of through holes 31 are arranged on the driving plate 3 at intervals. The aperture of the through hole 31 is not less than the distance between the upper and lower ends of the guide long hole 62, and the pitch changing rod 61 passes through the through hole 31 and the guide long hole 62.

[0050] When implementing it, Figure 3 As shown, two fourth slide rails 63 are vertically arranged on the rear side panel of the driving plate 3, and the pitch-changing plate 6 is slidably arranged on the two fourth slide rails 63; a fourth push cylinder 64 is also arranged on the driving plate 3, and the telescopic end of the fourth push cylinder 64 is connected to the pitch-changing plate 6. The pitch-changing plate 6 is driven to move up and down on the rear side of the driving plate 3 by the fourth push cylinder 64, thereby driving the guide slot 62 to move vertically. Since the pitch-changing rod 61 can move left and right along with the slide 5 on the driving plate 3, the part of the pitch-changing rod 61 located in the guide slot 62 is driven by the guide slot 62, so that the slide 5 slides on the third slide rail 52. The same group of guide slots 62 can control the corresponding two slides 5 to move away from or close to each other, thereby controlling the distance between the two air inlets or air outlets on the same cylinder. With the third push cylinder 33 driving the entire driving plate 3 to be pressed down, the valve oil seal press-fitting operation of the engine cylinders of different models can be realized.

[0051] More specifically, Figure 3 As shown, a pulley 65 is rotatably provided on the pitch change rod 61, and the pulley 65 is rolled in the guide long hole 62. The pulley 65 can reduce the friction force when driving the pitch change rod 61, thereby avoiding damage to the pitch change rod 61, and facilitating the adjustment of the horizontal position of the slide 5.

[0052] At the same time, a QR code can be set on the cylinder head, and a lens can be set on the cantilever 15 to automatically identify the cylinder head type to select the program. After the cylinder head is fixed on the mounting seat 2, the pressure head 4 can be automatically coaxially aligned with the corresponding valve guide, thereby improving the installation efficiency and saving manpower.

[0053] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A valve oil seal press machine, used for press-fitting valve oil seals on engine cylinder heads, characterized in that: It comprises a base (1), on which a mounting seat (2) capable of flipping forward and backward is slidably arranged, and the engine cylinder head is arranged on the mounting seat (2); A press-fitting component, the press-fitting component comprising a driving plate (3) and a pressing head (4), the driving plate (3) being arranged vertically slidably above the mounting seat (2), the driving plate (3) being provided with a plurality of sliding seats (5) which can slide leftward and rightward, the sliding seats (5) being vertically provided with the pressing head (4); A pitch-changing member, the pitch-changing member comprising a pitch-changing plate (6) and a pitch-changing rod (61), the pitch-changing plate (6) being vertically slidably arranged on the driving plate (3), the pitch-changing plate (6) being provided with a plurality of groups of guide holes, one group of the guide holes comprising two mutually symmetrical guide long holes (62), the guide long holes (62) being inclinedly arranged; A pitch-changing rod (61) is fixedly arranged on the slide seat (5), a plurality of through holes (31) are arranged at intervals on the drive plate (3), the diameter of the through hole (31) is not less than the distance between the upper and lower ends of the guide long hole (62), and the pitch-changing rod (61) passes through the through hole (31) and the guide long hole (62).

2. A valve oil seal press machine according to claim 1, characterized in that: The press-fitting part also includes a press rod (7), a driving hole (51) is vertically arranged on the slide seat (5), the press rod (7) slides through the driving hole (51), a limiting cap (71) is arranged at the upper end of the press rod (7), the limiting cap (71) is located above the slide seat (5), and the pressing head (4) is arranged at the lower end of the press rod (7); The outer wall of the pressure rod (7) is provided with a spiral guide groove (72), and the slide seat (5) is provided with a guide key (73), and the guide key (73) is slidably placed in the guide groove (72).

3. A valve oil seal press machine according to claim 2, characterized in that: The pressure rod (7) is also provided with a limit seat (74) and a spring (75), and the upper and lower ends of the spring (75) are respectively in contact with the slide seat (5) and the limit seat (74).

4. A valve oil seal press machine according to claim 3, characterized in that: It also includes a compensation tube (76) and a pressure sensor (77), wherein the pressure sensor (77) and the compensation tube (76) are both slidably mounted on the pressure rod (7), the upper and lower ends of the pressure sensor (77) are respectively abutted against the compensation tube (76) and the limit seat (74), and the upper end of the compensation tube (76) is abutted against the lower end of the spring (75).

5. A valve oil seal press machine according to any one of claims 1 to 4, characterized in that: The lower end of the pressure head (4) is arranged in a multi-stage truncated cone shape, and the valve oil seal sleeve is arranged on one of the truncated cones.

6. A valve oil seal press machine according to claim 5, characterized in that: Two first slide rails (11) are arranged on the base (1) along the front-rear direction, and a mounting base plate (12) is slidably arranged on the two first slide rails (11); A first push cylinder (13) is also provided on the base (1), and the telescopic end of the first push cylinder (13) is connected to the mounting base plate (12).

7. A valve oil seal press machine according to claim 6, characterized in that: Two hinge seats (21) are arranged at intervals on the installation base plate (12), and the installation seat (2) is hingedly connected to the two hinge seats (21); It also includes a second push cylinder (22), the two ends of which are respectively hinged to the mounting base plate (12) and one end of the mounting seat (2); A servo motor (23) is also provided on the hinge seat (21), and the output end of the servo motor (23) is coaxially connected to the rotating shaft of the mounting seat (2).

8. The valve oil seal press machine according to claim 5, characterized in that: A support seat (14) is vertically arranged on the base (1), a cantilever (15) is arranged on the support seat (14), two second slide rails (32) are vertically arranged on the support seat (14), and the drive plate (3) is slidably arranged on the two second slide rails (32); The cantilever (15) is provided with a third push cylinder (33), and the telescopic end of the third push cylinder (33) is connected to the driving plate (3).

9. The valve oil seal press machine according to claim 8, characterized in that: The driving plate (3) is arranged vertically, and two third slide rails (52) parallel to each other are arranged vertically at intervals on the front side panel of the driving plate (3); a plurality of the slide seats (5) at odd positions are slidably arranged on one of the third slide rails (52), and a plurality of the slide seats (5) at even positions are slidably arranged on another third slide rail (52); Two fourth slide rails (63) are vertically arranged on the rear side panel of the driving plate (3), and the pitch-changing plate (6) is slidably arranged on the two fourth slide rails (63); a fourth push cylinder (64) is also arranged on the driving plate (3), and the telescopic end of the fourth push cylinder (64) is connected to the pitch-changing plate (6).

10. The valve oil seal press assembly machine according to claim 9, characterized in that: A pulley (65) is rotatably arranged on the pitch change rod (61), and the pulley (65) is rollingly placed in the guide long hole (62).

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