Clamping tool for cylinder body overhaul

Abstract

The utility model relates to the related technical field of clamping tools for cylinder body overhaul, and one embodiment of the utility model provides a clamping tool for cylinder body overhaul, which comprises a bottom plate and a bracket disc, the bracket disc is fixed on the bottom plate, stand columns are fixed on the bracket disc, a mounting plate is fixed on the tops of the stand columns, a support frame is arranged on the bracket disc, and the bracket disc is fixed on the mounting plate. The driving assembly is arranged on the support disc and the bottom plate, the telescopic adjusting assembly is arranged in the supporting frame, the driving assembly comprises a plurality of long holes, the long holes are formed in the surface of the support disc, guide rods are arranged in the long holes, the bottom of the supporting frame is slidably connected to the guide rods, the lower end of the supporting frame is slidably attached to the inner walls of the long holes, and the guide rods are sleeved with a pair of first springs. By means of the technical scheme, the technical problems that in the prior art, when an existing tool is used for adjusting the clamping force, operation is complex, the appropriate clamping degree is difficult to achieve quickly, and the overhauling efficiency is low are solved.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the technical field of clamping fixtures for cylinder block maintenance, specifically, to a clamping fixture for cylinder block maintenance. Background Technology

[0002] In the maintenance of hydraulic cylinders, securing and clamping the cylinder body is a crucial step in ensuring maintenance quality and efficiency. Currently, the relevant maintenance tooling has many problems, making it inconvenient to securely clamp the hydraulic cylinder body.

[0003] Hydraulic cylinder bodies typically come in various sizes and have complex structures, making them difficult to adapt flexibly to existing tooling. Some tooling has limited clamping points, failing to provide comprehensive cylinder stability. During maintenance, the cylinder body is prone to wobbling and displacement, which not only interferes with maintenance operations—such as inspecting wear on the inner wall of the cylinder or repairing seals, affecting measurement accuracy and repair effectiveness—but may also damage maintenance tools due to cylinder instability, extending maintenance cycles. Furthermore, existing tooling involves complex clamping force adjustments, making it difficult to quickly achieve the appropriate clamping level, resulting in low maintenance efficiency.

[0004] As the application scenarios of hydraulic cylinders continue to expand, the requirements for their maintenance efficiency and quality are also increasing, creating an urgent need for a maintenance tool that can effectively improve the problem of fixing and clamping. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this disclosure provide a clamping fixture for cylinder block maintenance, which solves the technical problem that the existing fixtures are complicated to operate when adjusting the clamping force, making it difficult to quickly achieve the appropriate clamping degree, resulting in low maintenance efficiency.

[0006] According to one aspect, at least one embodiment of this disclosure provides a clamping fixture for cylinder block maintenance, comprising:

[0007] A base plate and a support plate, wherein the support plate is fixed to the base plate;

[0008] The system comprises several columns, mounting plates, and support frames. The columns are all fixed to the support plate, the mounting plates are fixed to the top of the columns, and the support frames are mounted on the support plate.

[0009] A drive assembly is disposed on the support plate and the base plate;

[0010] A telescopic adjustment assembly is disposed within the support frame;

[0011] The drive assembly includes several elongated holes, all of which are formed on the surface of the support plate. A guide rod is provided inside each elongated hole. The bottom of the support frame is slidably connected to the guide rod. The lower end of the support frame is slidably attached to the inner wall of the elongated hole. A pair of first springs are fitted on the guide rod.

[0012] As a further technical solution, the first spring is located at both ends of the support frame, a sliding column is provided at the lower end of the support frame, and a rotating shaft is rotatably connected to the surface of the base plate, the rotating shaft being rotatably connected to the base plate.

[0013] As a further technical solution, a transmission disk is provided at the upper end of the rotating shaft, and a plurality of sliding holes are opened on the surface of the transmission disk. The sliding holes are slidably fitted on the sliding column, and a worm gear is provided on the rotating shaft.

[0014] As a further technical solution, a pair of fixing rods are provided on the surface of the base plate, and a worm gear is rotatably connected between the fixing rods. The worm gear meshes with the worm wheel, and a screwing block is provided at one end of the worm gear.

[0015] As a further technical solution, the telescopic adjustment assembly includes a movable cavity, which is opened inside the support frame. One side of the movable cavity is an open structure, and a rectangular rod is fixedly connected inside the movable cavity.

[0016] As a further technical solution, the rectangular rod has anti-slip grooves on its surface, the mounting plate has several through holes on its surface, and a fixed post is movably connected to the top of the movable cavity. The fixed post is located inside the through holes, and one end of the bottom of the fixed post is slidably connected to the outside of the rectangular rod.

[0017] As a further technical solution, a fixing bolt is connected to the side end face of the fixing column by threaded screwing, one end of the fixing bolt is supported on the inner wall of the anti-slip groove, and a second spring is connected between the fixing column and the bottom of the movable cavity.

[0018] As a further technical solution, the surfaces of the fixed columns are all anti-slip structural surfaces.

[0019] As a further technical solution, the sliding hole has an arc-shaped transition structure.

[0020] As a further technical solution, the cross-section of the fixed column has a T-shaped structure.

[0021] The beneficial effects of the embodiments disclosed herein are as follows:

[0022] 1. In this disclosure, the beneficial effects of the drive assembly are that the elongated hole and guide rod provide a stable moving track for the support frame, ensuring its smooth sliding; the first spring realizes the elastic reset and buffering of the support frame, enhancing the clamping stability; the worm gear and transmission disk cooperate, and the operator can easily realize the synchronous movement of multiple support frames by rotating the screw block, which greatly simplifies the clamping operation process, quickly adjusts the clamping force, and improves maintenance efficiency.

[0023] 2. The beneficial effects of the telescopic adjustment component in this disclosure are that the movable cavity, rectangular rod and through hole cooperate to allow the fixed column to extend and retract flexibly, the anti-slip groove and fixing bolt can accurately lock the position of the fixed column to adapt to different cylinder structure, the second spring provides elastic support and reset, and facilitates adjustment of the corresponding number of fixed columns, the anti-slip structural surface and T-shaped structural design ensure that the fixed column is firmly attached to the outer wall of the cylinder and will not fall out, stabilizes the cylinder in all directions, improves maintenance accuracy, reduces cylinder shaking and displacement, and avoids damage to maintenance tools. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0025] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0026] Figure 2 This is an isometric drawing of the present disclosure;

[0027] Figure 3 This is an isometric sectional view of the present disclosure;

[0028] Figure 4 Appendix to this disclosure Figure 3 Enlarged view of part A in the middle;

[0029] In the diagram: 1. Base plate; 2. Support plate; 3. Column; 4. Mounting plate; 5. Support frame; 6. Drive assembly; 6-1. Elongated hole; 6-2. Guide rod; 6-3. First spring; 6-4. Sliding column; 6-5. Rotating shaft; 6-6. Transmission plate; 6-7. Sliding hole; 6-8. Worm gear; 6-9. Fixed rod; 6-10. Worm; 6-11. Twisting block; 7. Telescopic adjustment assembly; 7-1. Movable cavity; 7-2. Rectangular rod; 7-3. Anti-slip groove; 7-4. Through hole; 7-5. Fixed column; 7-6. Fixed bolt; 7-7. Second spring. Detailed Implementation

[0030] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0031] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0032] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0033] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this disclosure.

[0035] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] like Figures 1-4 As shown, a clamping fixture for cylinder block maintenance is illustrated in one embodiment of this disclosure, comprising:

[0037] The base plate 1 and the support plate 2 are fixed on the base plate 1;

[0038] Several columns 3, mounting plates 4 and support frames 5 are provided. The columns 3 are all fixed on the support plate 2, the mounting plates 4 are fixed on the top of the columns 3, and the support frames 5 are set on the support plate 2.

[0039] Drive component 6 is mounted on the support plate 2 and the base plate 1;

[0040] Telescopic adjustment component, which is installed inside the support frame 5;

[0041] The drive assembly 6 includes several elongated holes 6-1, all of which are formed on the surface of the support plate 2. Guide rods 6-2 are installed inside each elongated hole 6-1. The bottom of the support frame 5 is slidably connected to the guide rods 6-2, and the lower end of the support frame 5 is slidably fitted against the inner wall of the elongated holes 6-1. A pair of first springs 6-3 are fitted onto the guide rods 6-2, located at both ends of the support frame 5. A sliding post 6-4 is provided at the lower end of the support frame 5. A rotating shaft 6-5 is rotatably connected to the surface of the base plate 1. Shaft 6-5 is rotatably connected to base plate 1. A transmission disc 6-6 is provided at the upper end of shaft 6-5. Several sliding holes 6-7 are opened on the surface of transmission disc 6-6. The sliding holes 6-7 are slidably fitted on sliding column 6-4. A worm gear 6-8 is provided on shaft 6-5. A pair of fixed rods 6-9 are provided on the surface of base plate 1. A worm 6-10 is rotatably connected between fixed rods 6-9. The worm 6-10 meshes with the worm gear 6-8. A screwing block 6-11 is provided at one end of worm 6-10.

[0042] In some examples, during the overhaul of hydraulic cylinders, it is often necessary to clamp and fix them to ensure the accuracy and stability of the operation. For this purpose, a drive assembly 6 is designed to achieve the effect of synchronous movement of multiple support frames 5. This assembly includes several elongated holes 6-1 on the surface of the support plate 2, providing movement space for the support frames 5. Guide rods 6-2 set within the elongated holes 6-1 serve a guiding function. The bottom of the support frame 5 is slidably connected to the guide rods 6-2, and its lower end slides against the inner wall of the elongated hole 6-1. This allows the support frame 5 to slide smoothly along the guide rods 6-2 within the elongated holes 6-1, avoiding deviation or shaking during movement. A pair of first springs 6-3 fitted on the guide rods 6-2 are located at both ends of the support frame 5, providing an elastic reset function for the movement of the support frame 5. When no external force is applied, the first springs 6-3 are in a natural or slightly compressed state, keeping the support frame 5 in its initial position. A sliding post 6-4 set at the lower end of the support frame 5 connects with the transmission plate 6-6. The sliding holes 6-7 on the surface cooperate with each other. The transmission disc 6-6 is mounted on the rotating shaft 6-5, which is rotatably connected to the base plate 1. When the rotating shaft 6-5 drives the transmission disc 6-6 to rotate, the sliding column 6-4 slides in the sliding hole 6-7, converting the rotational motion of the transmission disc 6-6 into the linear movement of the support frame 5. Since the sliding columns 6-4 of multiple support frames 5 cooperate with the sliding holes 6-7 on the transmission disc 6-6, the synchronous movement of multiple support frames 5 can be achieved. The worm gear 6-8 mounted on the upper part meshes with the worm 6-10 rotatably connected to the fixed rod 6-9, forming a worm gear 6-8 worm 6-10 transmission mechanism. The screwing block 6-11 mounted on one end of the worm 6-10 provides a force application point for the operator. When the screwing block 6-11 is rotated, the worm 6-10 rotates accordingly. Through the meshing transmission of the worm gear 6-8 and the worm 6-10, the rotating shaft 6-5 is driven to rotate, which in turn causes the transmission disc 6-6 to rotate, ultimately achieving synchronous movement of multiple support frames 5.

[0043] like Figures 1-4 As shown, this embodiment proposes a telescopic adjustment assembly including a movable cavity 7-1, which is opened inside the support frame 5. One side of the movable cavity 7-1 is an open structure. A rectangular rod 7-2 is fixedly connected inside the movable cavity 7-1. The surface of the rectangular rod 7-2 is provided with an anti-slip groove 7-3. The surface of the mounting plate 4 is provided with several through holes 7-4. A fixed post 7-5 is movably fitted to the top of the movable cavity 7-1. The fixed post 7-5 is located inside the through hole 7-4. One end of the bottom of the fixed post 7-5 is slidably fitted to the outside of the rectangular rod 7-2. A fixing bolt 7-6 is screwed to the side end face of the fixed post 7-5. One end of the fixing bolt 7-6 is supported on the inner wall of the anti-slip groove 7-3. A second spring 7-7 is connected between the fixed post 7-5 and the bottom of the movable cavity 7-1.

[0044] In some examples, during the fixing of hydraulic cylinders, the shape and size of the cylinders may vary, requiring a flexible fixing method. Therefore, a telescopic adjustment assembly was designed to allow the fixing post 7-5 to extend or retract as needed to accommodate different fixing requirements. This assembly includes a movable cavity 7-1 within the support frame 5, providing space for the fixing post 7-5 and other components. One side of the movable cavity 7-1 is open, and a rectangular rod 7-2 is fixedly connected within it. Several through holes 7-4 on the surface of the mounting plate 4 mate with the fixing post 7-5 within the movable cavity 7-1. The fixing post 7-5 is movably fitted onto the top of the movable cavity 7-1. The fixed post 7-5 can extend or retract through the through hole 7-4. One end of the fixed post 7-5 is slidably fitted onto the outside of the rectangular rod 7-2, allowing the fixed post 7-5 to move up and down along the rectangular rod 7-2. The anti-slip groove 7-3 on the surface of the rectangular rod 7-2 is connected to the side end face of the fixed post 7-5 by a threaded bolt 7-6, which is used to lock the structure in place. Tightening the bolt 7-6 can support the fixed post 7-5 in the anti-slip groove 7-3, keeping the fixed post 7-5 in a fixed position. The second spring 7-7 connected between the fixed post 7-5 and the bottom of the movable cavity 7-1 plays the role of elastic support and reset. After the fixed post 7-5 is released, the elastic force of the second spring 7-7 can push the movable post to extend upward quickly.

[0045] For example, such as Figure 1 As shown, the surfaces of the fixed columns 7-5 are all anti-slip structural surfaces.

[0046] In some examples, the anti-slip surface allows the fixing post 7-5 to fit securely against the outer wall of the cylinder, resulting in better fixation.

[0047] For example, such as Figure 2 As shown, the sliding hole 6-7 has an arc-shaped transition structure.

[0048] In some examples, the curved transition structure makes the sliding post 6-4 move more smoothly within the sliding hole 6-7.

[0049] For example, such as Figure 3 As shown, the cross-section of the fixed column 7-5 has a T-shaped structure.

[0050] In some examples, the T-shaped structure prevents the fixed post 7-5 from coming out when it extends or retracts within the movable cavity 7-1, thus maintaining a stable connection.

[0051] In actual use: First, place the hydraulic cylinder body in a suitable position on the tooling. Rotate the screw block 6-11, and the worm gear 6-10 drives the worm wheel 6-8 to rotate the rotating shaft 6-5. The transmission disc 6-6 rotates accordingly, and the sliding column 6-4 slides in the sliding hole 6-7, driving the support frame 5 to move synchronously along the guide rod 6-2 in the elongated hole 6-1. The elasticity of the first spring 6-3 makes the support frame 5 fit tightly against the cylinder body. Depending on the specific structure of the cylinder body and the number of fixing columns 7-5 required, the fixing bolts 7-6 can be tightened or loosened. The fixing columns 7-5 can automatically extend outward or retract by pressing. After adjusting the height of the fixing columns 7-5, tighten the fixing bolts 7-6 to fix the height of the fixing columns 7-5.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A jacking tool for overhauling a cylinder, characterized by Include: The bottom plate (1) and the support plate (2) are fixed on the bottom plate (1); A number of columns (3), mounting plates (4) and support frames (5), the columns (3) are fixed on the support plate (2), the mounting plate (4) is fixed on the top of the column (3), the support frame (5) is arranged on the support plate (2); Drive assembly (6), the drive assembly (6) is arranged on the support plate (2) and the bottom plate (1); Telescopic adjusting assembly (7), the telescopic adjusting assembly (7) is arranged in the support frame (5); The drive assembly (6) includes a plurality of long holes (6-1), the long holes (6-1) are arranged on the surface of the support plate (2), the guide rod (6-2) is arranged in the long hole (6-1), the bottom of the support frame (5) is connected with the guide rod (6-2), the lower end of the support frame (5) is connected with the inner wall of the long hole (6-1), the guide rod (6-2) is sleeved with a pair of first spring (6-3).

2. The jacking tool for overhauling a cylinder according to claim 1, characterized in that The first spring (6-3) is located at both ends of the support frame (5), the lower end of the support frame (5) is provided with a sliding column (6-4), the surface of the bottom plate (1) is rotatably connected with a rotating shaft (6-5), and the rotating shaft (6-5) is rotatably connected with the bottom plate (1).

3. The jacking tool for overhauling a cylinder as set forth in claim 2, wherein The upper end of the rotating shaft (6-5) is provided with a transmission disc (6-6), the surface of the transmission disc (6-6) is provided with a plurality of sliding holes (6-7), the sliding hole (6-7) is slidably sleeved on the sliding column (6-4), the rotating shaft (6-5) is provided with a worm wheel (6-8), the surface of the bottom plate (1) is provided with a pair of fixed rods (6-9), the fixed rods (6-9) are rotatably connected with a worm (6-10), the worm (6-10) is engaged with the worm wheel (6-8), and one end of the worm (6-10) is provided with a screw block (6-11).

4. The jacking tool for overhauling a cylinder as set forth in claim 1, wherein The telescopic adjusting assembly (7) includes a movable cavity (7-1), the movable cavity (7-1) is arranged in the support frame (5), one side of the movable cavity (7-1) is of open structure, and the movable cavity (7-1) is fixedly connected with a rectangular rod (7-2).

5. The jacking tool for overhauling a cylinder as defined in claim 4, characterized in that The surface of the rectangular rod (7-2) is provided with an anti-skid groove (7-3), the surface of the mounting plate (4) is provided with a plurality of through holes (7-4), the top of the movable cavity (7-1) is movably sleeved with a fixed column (7-5), the fixed column (7-5) is located in the through hole (7-4), and the bottom of the fixed column (7-5) is slidably sleeved with the outside of the rectangular rod (7-2).

6. The jacking tool for overhauling a cylinder as defined in claim 5, characterized in that The side end face of the fixed column (7-5) is connected with a fixed bolt (7-6) through thread screwing, one end of the fixed bolt (7-6) is supported on the inner wall of the anti-skid groove (7-3), and the second spring (7-7) is connected between the fixed column (7-5) and the bottom of the movable cavity (7-1).

7. The jacking tool for overhauling a cylinder as defined in claim 6, characterized in that The surface of the fixed column (7-5) is an anti-skid structure surface.

8. The jacking tool for overhauling a cylinder as set forth in claim 3, wherein The sliding hole (6-7) is an arc transition structure.

9. The jacking tool for overhauling a cylinder as set forth in claim 5, wherein The fixed column (7-5) is in the shape of a T in cross section.

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