Oil seal pressing head and pressing and taking device

Abstract

The utility model provides an oil seal pressure head and pressure taking device which comprises a sleeve assembly, a vertical spring and a pressure head shaft rod are sequentially arranged in the sleeve assembly, the top end of the pressure head shaft rod presses the vertical spring, the bottom end of the pressure head shaft rod extends out of the sleeve assembly, the bottom end of the pressure head shaft rod is fixedly connected with a shaft barrel, and a transverse spring is arranged in the shaft barrel. Clamping plates are symmetrically arranged in the shaft barrel and located on the two sides of the transverse spring, the middles of the clamping plates are hinged to the interior of the shaft barrel, the ends of the transverse spring abut against the top ends of the clamping plates, and clamping ends are formed at the bottom ends of the clamping plates. According to the utility model, through the cooperation of the vertical spring, the transverse spring and the clamping plate, the positioning precision in the press fitting process of the oil seal is ensured. And the pressure head can be uniformly stressed when applying pressure under the action of the two-way spring, so that the deformation or damage of the oil seal caused by improper pressure application is effectively avoided, and the sealing effect of the oil seal is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery and relates to a material taking device, in particular to an oil seal pressure head and a pressure taking device. Background Art

[0002] An oil seal press is a mechanical component commonly used in industrial equipment. Its primary function is to assist in installing, securing, or tightening an oil seal (also known as a sealing ring). Oil seals are sealing devices used to prevent the leakage of liquids or gases and are widely used in engines, transmissions, and other mechanical equipment. Oil seal presses are widely used in automotive manufacturing, machinery maintenance, machine tool processing, and other industrial fields. They are particularly important in equipment that requires frequent oil seal replacement. In short, oil seal presses are a crucial tool in the maintenance and production of mechanical equipment, ensuring efficient and reliable operation.

[0003] At present, the material collection or installation of oil seals requires automatic operation of special devices. For example, Chinese patent document 201921555081.6 discloses a valve oil seal automatic press-fitting and pressing depth measurement device, including a seat, a No. 1 shaft embedded in the seat, a blocking connection block on the top of the No. 1 shaft, the bottom of the No. 1 shaft extending outside the seat, a first spring sleeved on the No. 1 shaft extending outside the seat, a pressure head arranged on the same axis below the No. 1 shaft, a valve oil seal at the bottom of the pressure head, a probe that can move up and down is provided in the pressure head, the upper end of the probe is provided in the pressure head, the lower end of the probe extends to the outside of the bottom of the pressure head, a clamping connection block is connected to the probe, one end of the clamping connection block is fixedly connected to the probe in the pressure head, the other end of the clamping connection block is provided outside the pressure head, and a displacement sensor is provided above the clamping connection block. The utility model can realize the detection of the presence of the valve oil seal self-tightening spring, the valve oil seal press-fitting, the pressure measurement and the pressing depth measurement functions. It is composed of four parts, which are respectively used to monitor the pressure and pressing depth of the valve oil seal assembly, and to detect the valve oil seal self-tightening spring.

[0004] Although the above technical solution provides the functions of press-fitting and depth measurement of the oil seal, its press-fitting is only assembled by hard pressing, which can easily cause pressure damage to the oil seal, resulting in defective products and even poor sealing effect; and the accuracy of press-fitting is poor, affecting the sealing effect after installation. Utility Model Content

[0005] The purpose of the utility model is to solve the above problems in the existing technology and to propose an oil seal pressure head and a pressure-taking device.

[0006] The purpose of the utility model can be achieved through the following technical solutions: an oil seal pressure head, including a sleeve assembly, a vertical spring and a pressure head shaft rod are arranged in sequence in the sleeve assembly, the top end of the pressure head shaft rod presses the vertical spring, the bottom end of the pressure head shaft rod extends out of the sleeve assembly, the bottom end of the pressure head shaft rod is fixedly connected to the shaft cylinder, a transverse spring is arranged in the shaft cylinder, and clamping plates are symmetrically arranged on both sides of the transverse spring in the shaft cylinder, the middle part of the clamping plate is hinged to the inside of the shaft cylinder, the end of the transverse spring presses the top end of the clamping plate, and the bottom end of the clamping plate forms a clamping end.

[0007] In the above-mentioned oil seal pressure head, the sleeve assembly includes a guide sleeve with a through cavity, the top of the guide sleeve blocks the positioning shaft, the top of the vertical spring presses the positioning shaft, and a fixing plate is fixed to the bottom of the guide sleeve. The fixing plate has a center hole, and the pressure head shaft rod passes through the center hole.

[0008] In the above-mentioned oil seal pressure head, a limiting step is provided on the inner periphery of the guide sleeve, and an annular platform is provided on the top end of the pressure head shaft, and the annular platform overlaps the limiting step to form a clamping limit.

[0009] In the above-mentioned oil seal pressure head, a through opening is provided on the side wall of the shaft cylinder, the clamping plate is located inside the through opening, and the clamping end forms a swinging space in the through opening.

[0010] In the above-mentioned oil seal pressure head, the outer periphery of the shaft cylinder is fixedly sleeved with a mounting plate, a lower limit block is arranged on the mounting plate, a fixing seat is fixed on the outer wall of the guide sleeve, a probe is inserted into the fixing seat, and an upper limit block is arranged at the bottom of the fixing seat, and the upper limit block and the lower limit block are arranged to confront each other in the upper and lower directions.

[0011] A pressing device includes a base plate, a lifter is fixed on the base plate, a lifting rod is set downward on the lifter, the bottom end of the telescopic rod is fixedly connected to the lifting frame, a pressure head bracket is installed at the bottom of the lifting frame, and the above-mentioned oil seal pressure head is arranged at the bottom of the pressure head bracket.

[0012] In the above-mentioned pressing device, the lifter includes a servo motor, the servo motor drives the connecting screw, the screw is threaded with a nut, the nut is fixedly connected to the slider, a guide rail is arranged parallel to the screw, the slider is clamped with the guide rail to form a sliding connection, and the slider is fixedly connected to the telescopic rod.

[0013] In the above-mentioned pressing device, the lifting frame includes a connecting plate and a lifting and pressing plate that are vertically fixed to each other, the telescopic rod is connected to the connecting plate through a joint, the bottom surface of the lifting and pressing plate is equipped with the pressure head bracket, and the bottom of the pressure head bracket is connected to the positioning shaft.

[0014] In the above-mentioned pressing device, adjustment holes are opened at both ends of the lifting and lowering pressure plate, and an adjustment rod is erected on the top surface of the pressure head bracket. The adjustment rod passes through the adjustment hole from bottom to top, and the adjustment rod extends out of the rod section of the lifting and lowering pressure plate and is sleeved on the adjustment seat. The adjustment seat and the adjustment hole form a threaded connection.

[0015] In the above-mentioned pressing device, a plurality of linear bearings are arranged on the bottom plate, wherein the linear bearings are provided with sliding guide columns, the top ends of the guide columns are fixedly connected to a frame, and the bottom ends of the guide columns are fixedly connected to the lifting and pressing plates.

[0016] Compared with the existing technology, the oil seal pressure head and pressure-taking device have the following beneficial effects:

[0017] 1. Improved sealing effect during installation: The vertical spring, transverse spring, and clamping plate work together to ensure accurate positioning of the oil seal during press-fitting. The bidirectional spring action ensures uniform force is applied to the pressure head, effectively preventing deformation or damage to the oil seal caused by improper pressure, thereby improving the sealing effect of the oil seal.

[0018] 2. Enhanced stability and reliability: The design of the limit step and spring structure enables the pressure head to have good reset and stability during use, preventing the pressure head from accidentally losing its position or rebounding, and ensuring the stability of the equipment during operation.

[0019] 3. Flexibility of clamping function: The hinged design of the clamping plate enables it to expand and clamp flexibly when subjected to force. This dynamic clamping capability improves the applicability and installation convenience of oil seals of different sizes and is more adaptable.

[0020] 4. Easy to maintain and adjust: The adjustment seat and adjustment rod are designed to easily adjust the height of the pressure head bracket. Users can adjust the working height of the equipment at any time according to specific needs, which is convenient for later maintenance and use.

[0021] 5. Modular design: The modular design combines the independence and interconnectivity of the pressure head, lifter, bracket and other parts, making the assembly, disassembly and replacement of the equipment easier and facilitating flexible application in different occasions. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the three-dimensional structure diagram of the oil seal pressure head.

[0023] Figure 2 This is the cross-sectional structure diagram of the oil seal pressure head.

[0024] Figure 3 This is the main structural diagram of the oil seal pressure head.

[0025] Figure 4This is a three-dimensional structural diagram of the pressure-taking device.

[0026] Figure 5 This is the main structural diagram of the pressure-taking device.

[0027] In the figure, 1. guide sleeve; 2. positioning shaft; 3. fixing plate; 4. vertical spring; 5. pressure head shaft; 6. shaft cylinder; 7. transverse spring; 8. clamping plate; 9. screw; 10. mounting plate; 11. lower limit block; 12. fixing seat; 13. upper limit block; 14. probe; 15. base plate; 16. servo motor; 17. connector; 18. connecting plate; 19. lifting and lowering plate; 20. pressure head bracket; 21. adjusting rod; 22. adjusting seat; 23. linear bearing; 24. guide column; 25. frame; 26. oil seal. DETAILED DESCRIPTION

[0028] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0029] Example 1

[0030] like Figures 1 to 3 As shown, the oil seal pressure head includes a sleeve assembly, in which a vertical spring 4 and a pressure head shaft rod 5 are arranged in sequence. The top end of the pressure head shaft rod 5 presses the vertical spring 4, and the bottom end of the pressure head shaft rod 5 extends out of the sleeve assembly. The bottom end of the pressure head shaft rod 5 is fixedly connected to the shaft cylinder 6, and a transverse spring 7 is arranged in the shaft cylinder 6. Clamping plates 8 are symmetrically arranged on both sides of the transverse spring 7 in the shaft cylinder 6. The middle part of the clamping plate 8 is hinged to the inside of the shaft cylinder 6, and the end of the transverse spring 7 presses the top end of the clamping plate 8, and the bottom end of the clamping plate 8 forms a clamping end.

[0031] A hinge hole is provided in the middle of the clamping plate 8 , and a screw 9 passes through the hinge hole and is fixed to the inner wall of the shaft cylinder 6 , so that the clamping plate 8 can rotate around the screw 9 .

[0032] The sleeve assembly includes a guide sleeve 1 with a through-hole. The top of the guide sleeve 1 blocks the positioning shaft 2, and the top of a vertical spring 4 presses against the positioning shaft 2. A fixing plate 3 is fixed to the bottom of the guide sleeve 1. The fixing plate 3 has a center hole through which the ram shaft 5 extends. The assembly of the positioning shaft 2, guide sleeve 1, and fixing plate 3 provides space for the ram's telescopic components, while also forming the main body of the ram and providing a mounting base for the clamping portion.

[0033] A limiting step is provided on the inner circumference of the guide sleeve 1, and an annular platform is provided at the top of the pressure head shaft 5. The annular platform overlaps the limiting step to form a snap-on limit. A vertical spring 4 is provided above the limiting step, and its bottom end contacts the annular platform at the top of the pressure head shaft 5. The annular platform is located above the limiting step. As a result, the pressure head shaft 5 is lifted by the force to compress the vertical spring 4. Upon releasing the pressure head shaft 5, the vertical spring 4 uses its elastic force to push the pressure head shaft 5 downward until the annular platform presses against the limiting step to reset.

[0034] The sidewall of the shaft cylinder 6 is provided with a through opening, and the clamping plate 8 is located inside the through opening, forming a swing space for the clamping end. The clamping plate 8 can rotate and swing around the central hinge point to achieve expansion and clamping, and the through opening provides space for the clamping end to expand outward.

[0035] The outer periphery of the shaft cylinder 6 is fixedly sleeved with a mounting plate 10, a lower limit block 11 is provided on the mounting plate 10, a fixing seat 12 is fixedly provided on the outer wall of the guide sleeve 1, a probe 14 is connected inside the fixing seat 12, and an upper limit block 13 is provided at the bottom of the fixing seat 12, and the upper limit block 13 and the lower limit block 11 are arranged in an upper and lower confrontation arrangement.

[0036] When the shaft cylinder 6 is lifted by force to compress the vertical spring 4, the mounting plate 10 and the lower limit block 11 are simultaneously driven to rise, while the upper limit block 13 fixed on the guide sleeve 1 does not move until the lower limit block 11 contacts the upper limit block 13, causing the shaft cylinder 6 to stop lifting and limit the retraction amount of the shaft cylinder 6.

[0037] Example 2

[0038] Based on the first embodiment, the differences of this embodiment are:

[0039] like Figure 4 and 5 As shown, a pressing device includes a base plate 15, a lifter is fixed on the base plate 15, a lifting rod is set downwardly of the lifter, the bottom end of the telescopic rod is fixedly connected to the lifting frame, a pressure head bracket 20 is installed at the bottom of the lifting frame, and the above-mentioned oil seal pressure head is arranged at the bottom of the pressure head bracket 20.

[0040] The lifter includes a servo motor 16, which drives a lead screw. A nut is threaded onto the lead screw, securing the nut to a slider. A guide rail is provided parallel to the lead screw, with the slider engaging the rail to form a sliding connection. The slider is then secured to the telescopic rod. Activating the servo motor 16 drives the lead screw in forward / reverse rotation, which, through threaded transmission, drives the nut up / down along the lead screw, simultaneously driving the slider up / down along the guide rail, raising / lowering the telescopic rod.

[0041] The lifting frame includes a connecting plate 18 and a lifting plate 19 that are vertically connected to each other. The telescopic rod is connected to the connecting plate 18 through a joint 17. The bottom surface of the lifting plate 19 is equipped with a pressure head bracket 20, and the bottom of the pressure head bracket 20 is connected to the positioning shaft 2.

[0042] The connecting plate 18 is specifically two parallel wings, and the lifting and pressing plate 19 is arranged horizontally, with the two wings vertically fixed to the upper surface of the lifting and pressing plate 19. The connecting plate 18 and the lifting and pressing plate 19 are used to connect and assemble the lifter and several oil seal pressure heads, forming the mounting frame of the entire device.

[0043] Adjustment holes are defined at both ends of the lifting and lowering plate 19. An adjustment rod 21 is mounted vertically on the top surface of the pressure head bracket 20. The rod 21 extends from bottom to top through the adjustment holes. The rod 21 extends out of the lifting and lowering plate 19 and then engages an adjustment seat 22, which is threadedly connected to the adjustment hole. Rotating the adjustment seat 22 forward or reverse, the threads guide the locking position of the adjustment seat 22 and the adjustment rod 21, thereby adjusting the height of the pressure head bracket 20 relative to the lifting and lowering plate 19.

[0044] Several linear bearings 23 are mounted on the base plate 15. Guide posts 24 are slidably threaded within these linear bearings. The top ends of these guide posts 24 are fixedly connected to a frame 25, while the bottom ends of these guide posts 24 are fixedly connected to the lifting plate 19. As the lifter drives the lifting frame up and down, the guide posts 24 slide up and down along the linear bearings 23, providing guidance and stability during the lifting process, ensuring the accuracy and stability of the pressing operation.

[0045] The operation method of this pressure extraction device is as follows:

[0046] Start the servo motor 16 to drive the lifting frame to drive the pressure head bracket 20 and several oil seal pressure heads to descend until the bottom of the shaft cylinder 6 is sleeved with the oil seal 26. The upward reaction force generated when pressing the oil seal 26 compresses the vertical spring, and the pressure head shaft 5 and the shaft cylinder 6 are slightly lifted. After the compression force of the vertical spring stabilizes, the shaft cylinder 6 continues to press the oil seal 26 downward, forcing the top ends of the two clamping plates 8 to compress the transverse spring 7. The clamping ends of the two clamping plates 8 expand outward to clamp the two sides of the oil seal 26, and the elastic force of the transverse spring 7 provides the clamping force of the oil seal 26.

[0047] The specific embodiments described herein are merely examples of the spirit of the present invention. A person skilled in the art of the present invention may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but will not deviate from the spirit of the present invention or exceed the defined scope. Although the present invention is described and described in detail in the drawings and the foregoing description, such illustrations and descriptions are considered to be illustrative or exemplary rather than restrictive. It should be understood that within the scope of the following claims, changes and modifications may be made by a person of ordinary skill. Specifically, the present invention covers additional embodiments having any combination of features from the different embodiments described above. Insofar as the expression "generally" or "substantially" is used, this patent application should be understood to disclose features and values ​​that are also fully satisfied, i.e., without the aforementioned characterization as "generally" or "substantially".

[0048] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

Claims

1. An oil seal pressure head, comprising a sleeve assembly, wherein a vertical spring and a pressure head shaft are sequentially arranged in the sleeve assembly, characterized in that: The top end of the pressure head shaft presses the vertical spring, and the bottom end of the pressure head shaft extends out of the sleeve assembly. The bottom end of the pressure head shaft is fixedly connected to the shaft cylinder. A transverse spring is arranged in the shaft cylinder. Clamping plates are symmetrically arranged on both sides of the transverse spring in the shaft cylinder. The middle part of the clamping plate is hinged to the inside of the shaft cylinder. The end of the transverse spring presses the top end of the clamping plate, and the bottom end of the clamping plate forms a clamping end.

2. The oil seal head according to claim 1, characterized in that: The sleeve assembly includes a guide sleeve with a through cavity, the top of the guide sleeve blocks the positioning shaft, the top of the vertical spring presses the positioning shaft, and a fixing plate is fixed to the bottom of the guide sleeve. The fixing plate has a center hole, and the pressure head shaft passes through the center hole.

3. The oil seal head according to claim 2, characterized in that: A limiting step is provided on the inner periphery of the guide sleeve, and an annular platform is provided on the top end of the pressure head shaft, and the annular platform overlaps the limiting step to form a clamping limit.

4. The oil seal head according to claim 1, characterized in that: A through opening is provided on the side wall of the shaft cylinder, the clamping plate is located inside the through opening, and the clamping end forms a swinging activity space in the through opening.

5. The oil seal head according to claim 2, characterized in that: The outer periphery of the shaft cylinder is fixed with a mounting plate, a lower limit block is arranged on the mounting plate, a fixing seat is fixed on the outer wall of the guide sleeve, a probe is inserted into the fixing seat, an upper limit block is arranged at the bottom of the fixing seat, and the upper limit block and the lower limit block are arranged to face each other up and down.

6. A pressing device, comprising a bottom plate, a lifter fixed on the bottom plate, a lifting rod arranged downward on the lifter, and the bottom end of the telescopic rod fixedly connected to the lifting frame, characterized in that: A pressure head bracket is installed at the bottom of the lifting frame, and the oil seal pressure head according to any one of claims 2 to 5 is arranged at the bottom of the pressure head bracket.

7. The pressure extraction device according to claim 6, characterized in that: The lifter includes a servo motor, which drives a connecting screw. A nut is threaded on the screw, and the nut is fixedly connected to a slider. A guide rail is arranged parallel to the screw. The slider is engaged with the guide rail to form a sliding connection, and the slider is fixedly connected to the telescopic rod.

8. The pressure extraction device according to claim 6, characterized in that: The lifting frame includes a connecting plate and a lifting and pressing plate that are vertically connected to each other. The telescopic rod is connected to the connecting plate through a joint. The bottom surface of the lifting and pressing plate is equipped with the pressure head bracket, and the bottom of the pressure head bracket is connected to the positioning shaft.

9. The pressing device according to claim 8, characterized in that: Adjustment holes are provided at both ends of the lifting and lowering pressure plate, and an adjustment rod is erected on the top surface of the pressure head bracket. The adjustment rod passes through the adjustment hole from bottom to top, and the adjustment rod extends out of the rod section of the lifting and lowering pressure plate and is sleeved on the adjustment seat, and the adjustment seat is threadedly connected to the adjustment hole.

10. The pressure extraction device according to claim 8, characterized in that: A plurality of linear bearings are arranged on the bottom plate, wherein guide columns are slidably connected in the linear bearings, the top ends of the plurality of guide columns are fixedly connected to a frame, and the bottom ends of the plurality of guide columns are fixedly connected to the lifting and pressing plates.

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