Shaft spring bushing auxiliary mounting device suitable for being matched with spring lower clamping plate to be mounted and applied

Abstract

The utility model discloses an auxiliary shaft spring bushing mounting device suitable for mounting a lower clamping plate of a spring in a matched manner. The auxiliary shaft spring bushing mounting device comprises a centering positioning unit, a stamping applying unit and a middle connecting unit, the centering positioning unit comprises a first barrel, an inner sliding way formed in the first barrel, a middle force transmission block installed on the inner sliding way in a sliding mode and a centering step groove formed in the front end face of the first barrel. The lining is installed in the inner sliding way in a sliding mode, and the centering step groove is connected with a flange at the front end of the spring lower clamping plate in a clamped mode. The aperture of the inner slideway is equal to the inner diameter of the bushing mounting hole; a push cylinder stamping mechanism design and a centering step groove clamping method are adopted, a centering positioning unit and a stamping applying unit are constructed, and the centering positioning unit and the stamping applying unit are integrated through a middle connecting unit, so that the device is small and portable, the operation difficulty is greatly simplified, and efficient mounting of the bushing can be completed by a single person with the help of the device.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model belongs to the technical field of shaft spring bushing installation, more particularly, relates to a shaft spring bushing auxiliary installation device suitable for spring lower clamping plate matched installation application. BACKGROUND

[0002] In the process of axle box spring maintenance, it is necessary to check and confirm that the bushing and the lower clamping plate cooperate well, and measure the wear between the bushing and the lower clamping plate. If the wear is greater than 2mm, the inner bushing of the lower clamping plate needs to be replaced. During the process of advanced maintenance of the axle box spring, there is a large assembly demand for the bushing and the lower clamping plate. At present, during the assembly process of the bushing and the lower clamping plate, a rubber hammer is needed to continuously knock the bushing to fit the bushing in the lower clamping plate bushing hole. Because the gap between the bushing hole and the bushing is small, it is difficult to center and apply force during installation, resulting in a long operation time (≥20min / each), and there is a certain labor safety risk when using the rubber hammer, so an efficient installation method for the bushing in the lower clamping plate of the spring is urgently needed to simplify the operation process.

[0003] Chinese utility model patent CN218875312U is a bushing installation equipment, which comprises a workbench, a positioning mechanism, a swing arm assembly and a bushing installation mechanism. The positioning mechanism is arranged on the workbench and is used for positioning the workpiece. The swing arm assembly is movably arranged on the workbench and has a free end that can move relative to the workbench. The bushing installation mechanism is arranged on the free end of the swing arm assembly and is used for driving the bushing installation mechanism to align the installation hole of the workpiece to press the bushing into the installation hole of the workpiece. By arranging the bushing installation mechanism on the free end of the swing arm assembly, the bushing installation mechanism can move relative to the workbench to the position aligned with the installation hole of the workpiece, and the bushing installation mechanism presses the bushing into the installation hole of the workpiece, without the need to move the workpiece, so that the installation is convenient. In addition, CN214213615U is a bushing installation device related to the field of unmanned aerial vehicles. The specific embodiment of the device includes a base, a centering piece and a knocking auxiliary piece. The base is used for fixed connection with the bushing installation hole through gap cooperation. The centering piece is installed on the base and is used for sleeving the bushing on the outside thereof and aligning the bushing coaxially with the bushing installation hole. The knocking auxiliary piece is used for cooperating with the bushing to embed the bushing into the bushing installation hole when an external force knocks the knocking auxiliary piece. This embodiment reduces the damage to the aircraft caused by the installation method such as knocking, and ensures the safe operation of the aircraft.

[0004] The above patent technology improves the bushing installation efficiency by designing auxiliary tooling or automation device, but still has the following technical problems or improvement direction: (1) the patent technology CN214213615U realizes the clamping of the bushing through the external tension clamping structure, but does not give the precise centering scheme of the bushing and the bushing hole, and the external force must be applied during the use process, and a single person cannot complete the operation; (2) the patent technology CN218875312U realizes the installation of the bushing by using automatic means, but the device is large in size and difficult to move, and must be moved to the top of the table surface for installation during the use process, and the use flexibility is insufficient. Practical new type content

[0005] In view of the above defects or improvement needs of the prior art, the utility model provides a shaft spring bushing auxiliary installation device suitable for spring lower clamp plate matched installation application, adopts push cylinder stamping mechanism design and centering step groove clamping method, constructs centering positioning unit and stamping application unit, and realizes integration of the two through intermediate connecting unit, not only makes the device realize small and portable effect, but also greatly simplifies the operation difficulty, and a single person can complete efficient installation of the bushing with the help of the device.

[0006] In order to realize the above purpose, a shaft spring bushing auxiliary installation device suitable for spring lower clamp plate matched installation application, comprising:

[0007] The centering positioning unit preinstalls the bushing and realizes the centering of the hole shaft installation center line, the stamping application unit is installed at the tail of the centering positioning unit and applies impact force to the bushing, and the intermediate connecting unit realizes detachable and replaceable connection of the centering positioning unit and the stamping application unit;

[0008] The centering positioning unit comprises a first cylinder, an inner slide way formed in the first cylinder, an intermediate force block slidably installed in the inner slide way, and a centering step groove formed in the front end face of the first cylinder; the bushing is slidably installed in the inner slide way, the centering step groove is clamped and connected with the front end flange of the spring lower clamp plate, and the inner slide way hole diameter is equal to the inner diameter of the bushing installation hole;

[0009] The bushing is installed in the inner slide way, the centering step groove and the front end flange are clamped and limited, the center line of the bushing installation hole and the bushing is centered, the stamping application unit applies stamping force to the bushing, and the bushing is stamped into the bushing installation hole.

[0010] Preferably, the intermediate force block is made of rubber material.

[0011] Preferably, it further comprises a handle provided on the outer wall of the first cylinder.

[0012] Preferably, it further comprises a negative pressure aspirator provided on the front end of the first cylinder.

[0013] Preferably, the front end face of the negative pressure aspirator is located in front of the front end face of the centering step groove.

[0014] Preferably, the stamping applying unit comprises:

[0015] The second cylinder body, the mounting hole arranged in the second cylinder body, the connecting end cover mounted on the rear end face of the second cylinder body, the force pushing cylinder mounted in the mounting hole and fixedly connected with the connecting end cover, and the stamping hammer arranged at the front end of the force pushing cylinder.

[0016] Preferably, the stamping hammer is made of cast iron.

[0017] Preferably, the intermediate connecting unit comprises:

[0018] The first flange part and the second flange part arranged at the rear end face of the first cylinder body and the front end face of the second cylinder body respectively, and the bolt group for connecting the first flange part and the second flange part.

[0019] Overall, compared with the prior art, the above technical scheme conceived by the utility model can achieve the following beneficial effects:

[0020] (1) The shaft spring bushing auxiliary installation device suitable for spring lower clamping plate matched installation application of the utility model adopts a pushing cylinder stamping mechanism design and a centering step groove clamping method, constructs a centering positioning unit and a stamping applying unit, and realizes integration of the two through an intermediate connecting unit. Not only does the device realize a small and portable effect, but also greatly simplifies the operation difficulty. One person can complete efficient installation of the bushing with the aid of the device.

[0021] (2) The shaft spring bushing auxiliary installation device suitable for spring lower clamping plate matched installation application of the utility model can realize disassembly, replacement and connection of the centering positioning unit and the stamping applying unit through the design of the intermediate connecting unit. The device meets the installation requirements of bushings of different sizes, and only needs to replace the type of the centering positioning unit, thereby reducing the implementation cost of the device. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 FIG. 1 is a general structural diagram of a shaft spring bushing auxiliary installation device suitable for spring lower clamping plate matched installation application according to an embodiment of the utility model;

[0023] Fig. 2 FIG. 2 is a use state diagram of the shaft spring bushing auxiliary installation device suitable for spring lower clamping plate matched installation application according to the embodiment of the utility model;

[0024] Fig. 3 FIG. 3 is a lower clamping plate and bushing installation schematic diagram;

[0025] In all the drawings, the same reference signs refer to the same technical features, specifically: 1 - centering positioning unit, 100 - first cylinder body, 101 - centering step groove, 102 - negative pressure aspirator, 103 - intermediate force transmission block, 104 - inner slide, 2 - stamping application unit, 200 - second cylinder body, 201 - connecting end cover, 202 - force applying push cylinder, 203 - mounting hole, 204 - stamping hammer, 3 - intermediate connecting unit, 301 - first flange part, 302 - second flange part, 303 - bolt set, 4 - handle, 5 - spring lower clamping plate, 501 - bushing mounting hole, 502 - front end flange, 6 - bushing. DETAILED DESCRIPTION

[0026] In the description of the present application, it needs to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0027] In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features referred to. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0028] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0030] As Figs. 1-3 shown in the utility model embodiment, the shaft spring bush auxiliary installation device suitable for spring lower clamping plate matched installation application, comprising:

[0031] Preload bushing 6 and realize hole shaft installation centering positioning unit 1, install in the tail of the centering positioning unit 1 and apply impact force to bushing 6 punch application unit 2, realize the detachable replacement connection of the centering positioning unit 1 and punch application unit 2 intermediate connecting unit 3;

[0032] The centering positioning unit 1, including first cylinder 100, the inner slide 104 in the first cylinder 100, the intermediate force block 103 slidingly installed in the inner slide 104, the centering step groove 101 opened in the front end face of the first cylinder 100;Bushing 6 is slidingly installed in the inner slide 104, the centering step groove 101 is connected with the front end flange 502 of spring lower clamping plate 5;The inner slide 104 hole diameter is equal to the inner diameter of bushing installation hole 501;

[0033] Bushing 6 is installed in the inner slide 104, under the action of centering step groove 101 and front end flange 502 clamping limit, realize the centering of bushing installation hole 501 and the center axis of bushing 6, apply the stamping force to bushing 6 through punch application unit 2, and bushing 6 is stamped into bushing installation hole 501.

[0034] In the utility model embodiment, the intermediate force block 103 is of rubber material.

[0035] As Fig. 1 shown in the utility model embodiment, the shaft spring bush auxiliary installation device suitable for spring lower clamping plate matched installation application further includes: handle 4 arranged on the outer wall of the first cylinder 100.

[0036] As Fig. 1 and Fig. 2 shown in the utility model embodiment, the shaft spring bush auxiliary installation device suitable for spring lower clamping plate matched installation application further includes: negative pressure aspirator 102 arranged on the front end of the first cylinder 100.

[0037] As Fig. 2 shown in the utility model embodiment, the front end face of the negative pressure aspirator 102 is located in front of the front end face of the centering step groove 101.

[0038] As Fig. 1 and Fig. 2 shown in the utility model embodiment, the punch application unit 2 includes:

[0039] The second cylinder body 200, the mounting hole 203 arranged in the second cylinder body 200, the connecting end cover 201 arranged at the rear end surface of the second cylinder body 200, the force pushing cylinder 202 arranged in the mounting hole 203 and fixedly connected with the connecting end cover 201, and the stamping hammer 204 arranged at the front end of the force pushing cylinder 202.

[0040] In the embodiment of the utility model, the stamping hammer 204 is cast iron material.

[0041] As shown in Fig. 1 And Fig. 2 As shown in the embodiment of the utility model, the intermediate connecting unit 3 comprises:

[0042] The first flange part 301 and the second flange part 302 are respectively arranged at the rear end surface of the first cylinder body 100 and the front end surface of the second cylinder body 200, and the bolt group 303 is used for connecting the first flange part 301 and the second flange part 302.

[0043] The utility model working principle:

[0044] S100: install the bushing 6 in the inner slide 104, hold the handle 4 tightly with both hands and move the whole device, so that the centering step groove 101 is clamped and limited with the front end flange 502, and the negative pressure aspirator 102 is started, the front end surface of the first cylinder body 100 and the end surface of the spring lower clamping plate 5 are tightly adsorbed, and the center axis of the bushing mounting hole 501 and the bushing 6 is centered at the same time;

[0045] S200: start the force pushing cylinder 202, high-speed forward push the stamping hammer 204, impact the intermediate force block 103, so as to apply a forward pushing force to the bushing 6, so as to stamp the bushing 6 into the bushing mounting hole 501, and complete the installation of the bushing 6.

[0046] In the embodiment of the utility model, the push cylinder stamping mechanism design and the centering step groove 101 clamping method are adopted, the centering positioning unit 1 and the stamping applying unit 2 are constructed, and the two are integrated through the intermediate connecting unit 3, not only the device realizes small and portable effect, but also the operation difficulty is greatly simplified, and one person can complete the efficient installation of the bushing by means of the device.

[0047] In addition, the utility model discloses a design intermediate connecting unit 3, which can realize the dismounting and replacement connection of the centering positioning unit 1 and the stamping applying unit 2, meets the installation demand of bushings of different sizes, only needs to replace the model of the centering positioning unit 1, and reduces the implementation cost of the device.

[0048] The above merely preferred embodiments of the present application are not used to limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The above is merely the preferred embodiment of the present application, it should be pointed out that, for the ordinary skilled in the art, without departing from the technical principle of the present application, a number of improvements and variations can be made, these improvements and variations should also be considered as the protection scope of the present application.

Claims

1. An auxiliary installation device for a shaft spring bushing suitable for use in the installation of a lower spring clamp, characterized in that, The utility model relates to a centering positioning unit (1) including a preloaded bushing (6) and realizing hole shaft installation center line centering, a stamping application unit (2) installed at the tail of the centering positioning unit (1) and applying impact force to the bushing (6), and an intermediate connecting unit (3) realizing detachable and replaceable connection of the centering positioning unit (1) and the stamping application unit (2). The centering positioning unit (1) comprises a first cylinder (100), an inner slide (104) formed in the first cylinder (100), an intermediate force block (103) slidably installed in the inner slide (104), and a centering step groove (101) formed in the front end face of the first cylinder (100); the bushing (6) is slidably installed in the inner slide (104), the centering step groove (101) is connected with the front end flange (502) of the spring lower clamping plate (5) through clamping, and the inner slide (104) has the same diameter as the inner diameter of the bushing installation hole (501). The bushing (6) is installed in the inner slide (104), and the center axis of the bushing installation hole (501) is centered with the bushing (6) under the clamping and limiting action of the centering step groove (101) and the front end flange (502), and the bushing (6) is stamped into the bushing installation hole (501) by the stamping application unit (2) applying stamping force to the bushing (6). The intermediate force block (103) is made of rubber.

2. A shaft spring bushing installation aid suitable for use with spring under clamp plate installation kits according to claim 1, characterized in that, Further comprising:

3. A shaft spring bushing installation aid adapted for use with spring under clamp plate installation kits according to claim 1, wherein, A handle (4) arranged on the outer wall of the first cylinder (100). Further comprising:

4. A shaft spring bushing installation aid adapted for use with spring under clamp plate installation kits according to claim 1, characterized in that, A negative pressure aspirator (102) arranged at the front end of the first cylinder (100). The front end face of the negative pressure aspirator (102) is located on the front side of the front end face of the centering step groove (101).

5. A shaft spring bushing installation aid adapted for use with spring under clamp plate installation kits according to claim 4, wherein, The stamping application unit (2) comprises:

6. A shaft spring bushing installation aid adapted for use with spring under clamp plate installation kits according to claim 1, wherein, A second cylinder (200), an installation hole (203) formed in the second cylinder (200), a connecting end cover (201) installed on the rear end face of the second cylinder (200), a force pushing cylinder (202) installed in the installation hole (203) and fixedly connected with the connecting end cover (201), and a stamping hammer (204) arranged at the front end of the force pushing cylinder (202). The stamping hammer (204) is made of cast iron.

7. A shaft spring bushing installation aid adapted for use with spring under clamp plate installation kits according to claim 6, wherein, The intermediate connecting unit (3) comprises:

8. A shaft spring bushing installation aid adapted for use with spring under clamp plate installation kits according to claim 6, wherein, A first flange part (301) and a second flange part (302) respectively arranged on the rear end face of the first cylinder (100) and the front end face of the second cylinder (200), and a bolt group (303) used for connecting the first flange part (301) and the second flange part (302). ​

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