Novel cylinder body bottom cover press-fitting device

Abstract

The utility model relates to the technical field of cylinder body processing, and provides a novel cylinder body bottom cover press fitting device which comprises a press machine, a turnover seat, a supporting column, an annular support, an ejector rod and a spring, one side of the turnover seat is hinged to the surface of the side, close to an operating worker station, of a workbench of the press machine, and the lower portion of the supporting column is fixedly connected with the turnover seat. A positioning sleeve matched with the inner diameter of the cylinder body is arranged on the upper portion of the annular support, a supporting ring extending outwards is arranged in the middle of the ejector rod, the lower portion of the ejector rod can be inserted into an inner hole in the upper end of the supporting column in an up-down moving mode, the spring is located between the lower end of the ejector rod and the bottom of the inner hole of the supporting column, and a lower pressing head matched with the inner wall of a bottom cover of the cylinder body is fixedly arranged at the upper end of the ejector rod. The lower pressing head and the upper pressing head of the pressing machine are coaxial in the vertical direction, and the upper pressing head of the pressing machine is pressed downwards to press the bottom cover placed on the lower pressing head into the cylinder body arranged on the supporting column and the positioning sleeve in a sleeving mode to complete press fitting of the bottom cover. The utility model solves the problems of large error and low working efficiency when the bottom cover of the oil cylinder of the existing shock absorber is manually pressed.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder block processing, in particular to a novel cylinder block bottom cover pressing device. Background Art

[0002] At present, shock absorbers are vulnerable parts during the use of automobiles. The performance of shock absorbers directly affects the driving smoothness of automobiles and the service life of other components. Therefore, shock absorbers should always be in good working condition.

[0003] Reference Figure 1 , in the assembly process of automobile shock absorbers, it is necessary to press-fit the bottom cover 2' of the cylinder block 1' of the automobile shock absorber. Usually, workers use manual methods for press-fitting, but there are large errors and low work efficiency when pressing by hand. Summary of the Utility Model

[0004] Therefore, in view of the above problems, the utility model provides a novel cylinder block bottom cover pressing device with fast pressing speed, accurate pressing and high work efficiency.

[0005] To solve this technical problem, the utility model adopts the following solution: A novel cylinder block bottom cover pressing device includes a press, a turning seat, a support column, an annular support, a push rod and a spring. One side of the turning seat is hinged to the surface of the workbench of the press close to the operator's position. The lower part of the support column is fixedly connected to the turning seat. The annular support is sleeved on the support column in an adjustable up-and-down manner. The upper part of the annular support is provided with a positioning sleeve adapted to the inner diameter of the cylinder block. The center of the upper end of the support column is provided with an inner hole. The middle part of the push rod is provided with an outwardly extending support ring, and the lower part of the push rod is inserted into the inner hole at the upper end of the support column in a vertically movable manner. The spring is embedded in the inner hole at the upper end of the support column and is located between the lower end of the push rod and the bottom of the inner hole of the support column. The upper end of the push rod is fixedly provided with a pressing head adapted to the inner wall of the cylinder block bottom cover. The pressing head and the upper pressing head of the press are coaxial in the vertical direction. The upper pressing head of the press presses down to press the bottom cover placed on the pressing head into the cylinder block sleeved on the support column and the positioning sleeve to complete the bottom cover press-fitting.

[0006] Further, the positioning sleeve of the annular support is provided with a plurality of annular steps with gradually increasing outer diameters from top to bottom for positioning different models of cylinder blocks.

[0007] Further, the pressing head is provided with a plurality of second annular steps with gradually increasing outer diameters from top to bottom for positioning different models of bottom covers.

[0008] Further, the support column is a threaded core rod, the annular support is a threaded annular support adapted to the threaded core rod, and the annular support is also provided with a limit post to adjust the position of the annular support on the support column.

[0009] Further, an arc-shaped depression adapted to the outer wall of the bottom cover of the cylinder block is provided at the bottom of the upper pressing head of the press.

[0010] Further, it further includes a lower backing plate, the lower backing plate is fixedly arranged on the working table of the press, and one side of the turning seat is hinged to the surface of the lower backing plate close to the operator's working position.

[0011] By adopting the foregoing technical solutions, the beneficial effects of the present utility model are as follows: By arranging a hinged turning seat on the working table of the press, the operator can pull the support column to incline towards his operating position, so as to quickly sleeved the cylinder block and place the bottom cover well, and then reset the turning seat and place it flat on the working table, which greatly improves the placing speed of the cylinder block and the bottom cover, improves the loading and unloading speed of the processed workpiece, and at the same time, after the placement is completed, due to the cooperation of the positioning sleeve on the annular support and the coaxial setting of the lower pressing head and the upper pressing head of the press, it effectively guarantees the accuracy of the press-fitting of the bottom cover and the cylinder block, realizes fast press-fitting and accurate press-fitting, greatly improves the working efficiency, by arranging a plurality of annular steps adapted to different models of cylinder blocks on the positioning sleeve of the annular support, the press-fitting device of the present utility model can be used for sleeving different models of cylinder blocks for positioning and matching to adjust the up and down positions of the annular support to realize the press-fitting of various cylinder blocks, a plurality of second annular steps are arranged on the lower pressing head for placing different models of bottom covers for positioning, so that the bottom cover will not be displaced during the press-fitting of the bottom cover, ensuring the accuracy of the press-fitting of various models of bottom covers, an arc-shaped depression adapted to the outer wall of the bottom cover of the cylinder block is provided at the bottom of the upper pressing head of the press, which can further improve that the bottom cover will not shift and cause errors when pressing the bottom cover down, improving the press-fitting accuracy of the bottom cover, arranging the lower backing plate enables the machine table to not need to modify the structure of the working table of the press, further simplifies the assembly structure, and can be widely promoted and applied. Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of the existing cylinder block and bottom cover;

[0013] Figure 2 is a partial structural diagram of an embodiment of the present utility model;

[0014] Figure 3 is a partial structural diagram when loading and unloading workpieces in an embodiment of the present utility model. Detailed Embodiments

[0015] The present utility model will be further described below in conjunction with the drawings and specific embodiments.

[0016] Refer to Figure 2 and Figure 3, preferably, the novel cylinder block bottom cover pressing device of the present utility model includes a press 1, a turning seat 2, a support column 3, an annular support 4, a push rod 5 and a spring 6. One side of the turning seat 2 is hingedly connected to the surface of the workbench 11 of the press 1 close to the operator's position. The lower part of the support column 3 is fixedly connected to the turning seat 2. The support column 3 is a threaded mandrel. The annular support 4 is a threaded annular support adapted to the threaded mandrel, and a limit post 41 is provided on the annular support 4 to adjust the position of the annular support 4 on the support column 3 so as to make an adaptive adjustment according to the length requirement of the cylinder block 7. An adapter sleeve 8 adapted to the inner diameter of the cylinder block 7 is provided on the upper part of the annular support 4. On the adapter sleeve 8 of the annular support 4, there are a plurality of annular steps 81 with gradually increasing outer diameters from top to bottom to sleeve different models of the cylinder block 7 for positioning. An inner hole is provided at the center of the upper end of the support column 3. The middle part of the push rod 5 is provided with an outward extending support ring 51, and the lower part of the push rod 5 is movably inserted into the inner hole at the upper end of the support column 3. The spring 6 is embedded in the inner hole at the upper end of the support column 3 and is located between the lower end of the push rod 5 and the bottom of the inner hole of the support column 3. A lower pressing head 9 adapted to the inner wall of the bottom cover of the cylinder block 7 is fixedly provided at the upper end of the push rod 5. On the lower pressing head 9, there are a plurality of second annular steps 91 with gradually increasing outer diameters from top to bottom to place different models of the bottom cover for positioning. The lower pressing head 9 and the upper pressing head 12 of the press 1 are coaxial in the vertical direction. After the cylinder block 7 is sleeved on the support column 3 and the adapter sleeve 8, the cylinder block 7 and the upper pressing head 12 are also coaxial in the vertical direction. An arc-shaped depression adapted to the outer wall of the bottom cover of the cylinder block 7 is provided at the bottom of the upper pressing head 12 of the press 1. The upper pressing head 12 of the press 1 presses down to press the bottom cover placed on the lower pressing head 9 into the cylinder block 7 sleeved on the support column 3 and the adapter sleeve 8 to complete the bottom cover pressing.

[0017] In the above embodiment, it is also possible not to provide a threaded structure on the outer wall of the support column. The upper pressing head is provided with an arc-shaped depression to better ensure that the bottom cover pressing is not offset and improve the pressing accuracy. The adapter sleeve on the annular support can also be an adapter sleeve separable from the annular support. A lower backing plate can also be added, and the lower backing plate is fixedly provided on the workbench of the press, and one side of the turning seat is hingedly connected to the surface of the lower backing plate close to the operator's position, so that the user does not need to modify the workbench of the press.

[0018] Although the present utility model is specifically shown and described in combination with the preferred implementation embodiments, those skilled in the art should understand that various changes can be made to the present utility model in terms of form and details without departing from the spirit and scope of the present utility model defined by the appended claims, and all are within the protection scope of the present utility model.

Claims

1. A new type of cylinder block bottom cover press-fitting device, comprising a press, a turnover seat, a support column, an annular support, a ejector rod and a spring, characterized in that: One side of the flipping base is hinged to the surface of the working table of the press close to the operator's working position. The lower part of the support column is fixedly connected to the flipping base. The annular support is sleeved on the support column in an adjustable up-and-down manner. The upper part of the annular support is provided with a positioning sleeve adapted to the inner diameter of the cylinder body. The center of the upper end of the support column is provided with an inner hole. The middle part of the ejector rod is provided with a support ring extending outwards, and the lower part of the ejector rod is inserted into the inner hole of the upper end of the support column in a vertically movable manner. The spring is embedded in the inner hole of the upper end of the support column and is located between the lower end of the ejector rod and the bottom of the inner hole of the support column. The upper end of the ejector rod is fixedly provided with a pressing head adapted to the inner wall of the bottom cover of the cylinder body. The pressing head and the upper pressing head of the press are coaxial in the vertical direction. The upper pressing head of the press presses down to press the bottom cover placed on the pressing head into the cylinder body sleeved on the support column and the positioning sleeve to complete the bottom cover pressing installation.

2. The novel cylinder block bottom cover press-fitting device according to claim 1, wherein: The positioning sleeve of the annular support is provided with a plurality of annular stepped sleeves with gradually increasing outer diameters from top to bottom for positioning different models of cylinder bodies.

3. The novel cylinder block bottom cover press-fitting device according to claim 1, wherein: The pressing head is provided with a plurality of second annular steps with gradually increasing outer diameters from top to bottom for positioning different models of bottom covers.

4. The novel cylinder block bottom cover press-fitting device according to claim 1, characterized in that: The support column is a threaded mandrel, and the annular support is a threaded annular support adapted to the threaded mandrel. The annular support is also provided with a limiting post to adjust the position of the annular support on the support column.

5. The novel cylinder block bottom cover press-fitting device according to claim 1, characterized in that: The bottom of the upper pressing head of the press is provided with an arc-shaped depression adapted to the outer wall of the bottom cover of the cylinder body.

6. The novel cylinder block bottom cover pressing device according to claim 1, wherein: It further includes a lower backing plate. The lower backing plate is fixedly arranged on the working table of the press. One side of the flipping base is hinged to the surface of the lower backing plate close to the operator's working position.

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