Bearing press-fitting device of engine cover

Abstract

The bearing press-fitting device of the engine cover comprises a base installed on a rack, an objective table is arranged on the base, a supporting piece which can ascend and descend and is used for abutting against the lower side of a bearing hole is arranged in the middle of the objective table, and a positioning piece with the position adjustable is arranged on one side of the supporting piece. The positioning piece is used for being sleeved with a positioning hole, located in one side of the bearing hole, of the engine cover in a penetrating mode, and the engine cover is positioned on the objective table through combination of the supporting piece and the positioning piece. The device further comprises an air cylinder installed on the rack, and a pressing head is installed at the free end of a piston rod of the air cylinder and located over the supporting piece. By adjusting the height of the supporting piece, the supporting piece can abut against the lower sides of bearing holes of engine covers of different models, supporting is provided for the lower sides of the bearing holes, assembling of bearings of the engine covers of different models is achieved, applicability is high, and equipment cost can be saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing assembly technical field, concretely relates to a bearing press fitting device of engine cover. BACKGROUND

[0002] The press fitting process of the bearing on the engine cover needs to support the lower side of the bearing position to be installed on the engine cover first, then place the bearing above the bearing hole of the engine cover, and then use the pneumatic pressure head to press the bearing to make it enter the bearing hole to complete the installation. Figure 3 However, the engine cover has a certain depth, as shown in the figure, the bearing hole is located at the bottom, if the engine cover is directly placed on the plane object table, there will be a distance between the bottom of the engine cover and the object table, and the object table cannot support the lower side of the bearing position.

[0003] Different models of engine covers have different depths, and the pad on the traditional object table is set for a certain model of engine cover, so the press fitting device is only suitable for the engine cover of this model, and if another model of workpiece needs to be processed, the original pad needs to be removed and replaced with a new one, which is not only troublesome, but also each model of workpiece needs to be prepared with a corresponding pad, which increases the cost of the equipment. UTILITY MODEL CONTENTS

[0004] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a bearing press fitting device of engine cover to assemble bearings of different models of engine covers.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A bearing press fitting device of engine cover, comprising a base mounted on a rack, the base is provided with an object table, the middle part of the object table is provided with a liftable support for abutting against the lower side of the bearing hole, one side of the support is provided with a position-adjustable positioning piece, the positioning piece is used for sleeving in the positioning hole on one side of the bearing hole of the engine cover, and the engine cover is positioned on the object table through the combination of the support and the positioning piece; further comprising a cylinder mounted on the rack, a free end of a cylinder piston rod is provided with a pressure head, and the pressure head is located directly above the support.

[0007] Principle of the utility model

[0008] In the scheme, the engine cover is placed on the object table, the height of the support is adjusted, the support is abutted against the lower side of the bearing hole, the lower side of the bearing hole is supported, the position of the positioning member is adjusted according to the distance between the bearing hole and the positioning hole, the positioning member is sleeved in the positioning hole, the engine cover is positioned on the object table by using the two-point fixing principle, the bearing is placed above the bearing hole of the engine cover during assembly, the bearing is pressed into the bearing hole by using the pressure head, and the installation is completed.

[0009] The utility model discloses the beneficial effect that:

[0010] The device can be abutted against the lower side of the bearing hole of the engine cover of different depths through the liftable support, and the positioning member can be sleeved on the positioning hole of the engine cover of different models through the position-adjustable positioning member, thereby positioning the workpieces of different models.

[0011] As a preferred embodiment of the utility model, the support includes a lifting rod, the middle part of the object table is rotationally connected with a rotating disc, the lifting rod is screw-connected at the center of the rotating disc, the lower side of the object table is fixedly connected with a mounting column, the inside of the mounting column is provided with a sliding groove, and the lower end of the lifting rod is fixedly connected with a rectangular sliding block matched with the sliding groove after penetrating through the rotating disc.

[0012] As a preferred embodiment of the utility model, the mounting column and the base are provided with a buffer member, the buffer member includes a spring and two connecting plates fixed at both ends of the spring, and the two connecting plates are respectively fixed with the mounting column and the base.

[0013] As the preferred embodiment of the utility model, the guide piece is arranged between the object table and the base, the guide piece comprises an inner tube and an outer tube, the upper end of the inner tube is fixed with the object table, the lower end of the inner tube is fixed with a rubber plug, the lower end of the inner tube and the rubber plug are sleeved in the outer tube, and the lower end of the outer tube is fixed with the base.In the scheme, the rubber plug can limit the relative movement of the inner tube and the outer tube, the inner tube and the outer tube are similar to a tube, the object table can be supported, on the other hand, in the pressing process, if the pressing stroke of the pressing head is too large, the vertical movement of the inner tube and the outer tube can guide the downward movement of the object table, and the rubber plug can utilize the friction with the inner wall of the outer tube to buffer.

[0014] As the preferred embodiment of the utility model, the base is fixed with a plurality of connecting barrels, the object table is respectively provided with through holes above the plurality of connecting barrels, the positioning piece comprises a positioning rod, the lower end of the positioning rod is threadedly connected with the connecting barrel, and the positioning rod can be sleeved in the positioning hole on the engine cover after being passed through the through hole.Due to the difference in the distance between the bearing hole and the positioning hole of different models of engine covers, the positioning rod needs to be installed in the connecting barrel with the corresponding distance to match the corresponding model during positioning.

[0015] As the preferred embodiment of the utility model, the lower part of the rotating disc is provided with a step, the middle part of the object table is provided with a mounting groove matched with the rotating disc, and the step is matched with the mounting groove to limit the rotating disc from coming out of the mounting groove.In the scheme, the step is matched with the mounting groove to limit the vertical movement of the rotating disc, thereby preventing the rotating disc from coming out of the mounting groove.

[0016] As the preferred embodiment of the utility model, the lifting rod is threadedly connected with a supporting block after being passed through the object table, and the supporting block is used for abutting against the lower side of the bearing hole.In the scheme, the supporting block can be disassembled, different supporting blocks with corresponding sizes can be replaced according to different hole diameters of different models of engine covers, and the supporting block can abut against the lower side of the bearing hole. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the embodiment of the utility model;

[0018] Figure 2 It is a sectional view of the object table in the embodiment of the utility model;

[0019] Figure 3 It is a structural schematic view of the engine cover.

[0020] The reference signs comprise:

[0021] Frame 1, cylinder 2, pressure head 3, base 4, object table 5, rotating disc 6, step 7, dial block 8, mounting column 9, sliding groove 10, lifting rod 11, sliding block 12, supporting block 13, buffer 14, via 15, connecting cylinder 16, positioning rod 17, guide 18, positioning hole 19, bearing hole 20. DETAILED DESCRIPTION

[0022] The typical embodiments embodying the features and advantages of the present application will be described in the following description with reference to the accompanying drawings. It should be understood that the present application can have various changes on different embodiments, which do not deviate from the scope of the present application, and the description and drawings in essence are used for description, not for limiting the present application.

[0023] In the description of the present application, the orientation or position relationship indicated by the terms "top", "bottom", "one end", "one side" and the like is based on the orientation or position 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 structure indicated 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.

[0024] Referring to Figures 1-3 As shown in the drawings, the embodiment discloses a bearing press-fitting device of an engine cover, which comprises a base 4 mounted on a frame 1, and an object table 5 mounted on the base 4, wherein the middle part of the object table 5 is provided with a supporting piece which can be lifted and used to abut against the lower side of a bearing hole 20, by adjusting the height of the supporting piece, the supporting piece can abut against the lower side of the bearing hole 20 of the engine cover with different depths, specifically, the middle part of the object table 5 is rotationally connected with a rotating disc 6, the lower part of the rotating disc 6 is integrally formed with a protruding step 7, by matching the step 7 with the mounting groove, the vertical movement of the rotating disc 6 can be limited, thereby preventing the rotating disc 6 from coming out of the mounting groove, and the upper end surface of the rotating disc 6 is fixed with a dial block 8, by dialing the dial block 8, the rotating disc 6 can be rotated in the middle part of the object table 5. The supporting piece comprises a lifting rod 11, the lifting rod 11 is threadedly connected in the center of the rotating disc 6, the lower side of the object table 5 is fixed with a mounting column 9, the inside of the mounting column 9 is provided with a sliding groove 10, the lower end of the lifting rod 11 is fixed with a rectangular sliding block 12 matched with the sliding groove 10 after penetrating out of the rotating disc 6, by matching the rectangular sliding block 12 with the sliding groove 10, the rotation of the lifting rod 11 can be limited, when the rotating disc 6 rotates, the lifting rod 11 vertically lifts, thereby realizing the lifting of the supporting piece.

[0025] Further, after the lifting rod 11 extends out of the object table 5, a supporting block 13 is threadedly connected to the lifting rod 11, and the supporting block 13 is used to abut against the lower side of the bearing hole 20. The supporting block 13 in the present scheme can be disassembled, because the bearing holes 20 of different models of engine covers have different diameters, therefore, the supporting block 13 of corresponding size can be replaced according to different hole diameters, so that the supporting block 13 can abut against the lower side of the bearing hole 20.

[0026] Further, one side of the support is provided with a position-adjustable positioning member, which is used to be sleeved in the positioning hole 19 on the engine cover at the side of the bearing hole 20. The support corresponds to the bearing hole 20, and the positioning member corresponds to the positioning hole 19. The engine cover is positioned on the object table 5 by the two points of the support and the positioning member. Specifically, a plurality of connecting barrels 16 are fixed on the base 4, and the object table 5 is provided with through holes 15 above the plurality of connecting barrels 16, respectively. The positioning member comprises a positioning rod 17, the lower end of the positioning rod 17 is screwed with the connecting barrel 16, and the positioning rod 17 can be sleeved in the positioning hole 19 on the engine cover after being passed through the through hole 15. Because the distance between the bearing hole 20 and the positioning hole 19 of different models of engine covers is different, when positioning, according to the distance between the bearing hole 20 and the positioning hole 19, the positioning rod 17 needs to be installed into the connecting barrel 16 of the corresponding distance to match the corresponding model.

[0027] The rack 1 is provided with the cylinder 2, the free end of the piston rod of the cylinder 2 is provided with the pressure head 3, and the pressure head 3 is located above the support. When the engine cover is placed, the bearing is placed above the bearing hole 20 of the engine cover, the bearing is pressed into the bearing hole 20 by the pressure head 3, and the installation is completed.

[0028] Further, the buffer 14 is arranged between the mounting column 9 and the base 4, the buffer 14 comprises a spring and two connecting plates fixed at both ends of the spring, and the two connecting plates are fixed with the mounting column 9 and the base 4, respectively. By arranging the structure, if the pressing stroke of the pressure head 3 is too large during the pressing process, that is, the bearing is pressed into the bearing hole 20, and the pressure head 3 still continues to press down, the spring will be deformed and compressed, and the workpiece is buffered, so that the workpiece is prevented from being damaged by rigid extrusion.

[0029] Further, the guide 18 is arranged between the object table 5 and the base 4, the guide 18 comprises an inner tube and an outer tube, the upper end of the inner tube is fixed with the object table 5, the lower end of the inner tube is fixed with a rubber plug, the lower end of the inner tube and the rubber plug are sleeved in the outer tube, and the lower end of the outer tube is fixed with the base 4. The rubber plug in the scheme can limit the relative movement of the inner tube and the outer tube, so that the inner tube and the outer tube are similar to a tube, and the object table 5 can be supported. On the other hand, during the pressing process, if the pressing stroke of the pressure head 3 is too large, the vertical movement of the inner tube and the outer tube can guide the downward movement of the object table 5, and the rubber plug can buffer by the friction with the inner wall of the outer tube.

[0030] The above-mentioned embodiments are only preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential change and replacement made by the person skilled in the art on the basis of the present application belongs to the scope of protection required by the present application.

Claims

1. A bonnet bearing press device characterized by: The base is installed on the rack, and the base is provided with a loading table, and the middle part of the loading table is provided with a support for being abutted against the lower side of the bearing hole, and the side of the support is provided with a position-adjustable positioning piece, and the positioning piece is used for being sleeved in the positioning hole on the side of the bearing hole of the engine cover, and the engine cover is positioned on the loading table through the support and the positioning piece; the cylinder is installed on the rack, and the free end of the cylinder piston rod is provided with a pressure head, and the pressure head is located directly above the support.

2. The bearing press fitting apparatus according to claim 1, characterized by: The support includes a lifting rod, the middle part of the loading table is rotationally connected with a rotating disc, the lifting rod is threadedly connected with the center of the rotating disc, the lower side of the loading table is fixed with a mounting column, the inside of the mounting column is provided with a sliding groove, and the lower end of the lifting rod is fixed with a rectangular sliding block matched with the sliding groove after penetrating out of the rotating disc, and the sliding block slides in the sliding groove along with the lifting of the lifting rod.

3. The bearing press fitting apparatus according to claim 2, characterized by: The mounting column and the base are provided with a buffer, and the buffer includes a spring and two connecting plates fixed at both ends of the spring, and the two connecting plates are respectively fixed with the mounting column and the base.

4. The bearing press installation of claim 1, wherein: The loading table and the base are provided with a guide, and the guide includes an inner tube and an outer tube, the upper end of the inner tube is fixed with the loading table, the lower end of the inner tube is fixed with a rubber plug, the lower end of the inner tube and the rubber plug are sleeved in the outer tube, and the lower end of the outer tube is fixed with the base.

5. The bearing press installation of claim 2, wherein: The base is fixed with a plurality of connecting barrels, the loading table is provided with a through hole above the plurality of connecting barrels, the positioning piece includes a positioning rod, the lower end of the positioning rod is threadedly connected with the connecting barrel, and the positioning rod can be sleeved in the positioning hole on the engine cover after penetrating out of the through hole.

6. The bearing press fitting apparatus according to claim 2, characterized by: The lower part of the rotating disc is protruded with a step, the middle part of the loading table is provided with a mounting groove matched with the rotating disc, and the step is matched with the mounting groove to limit the rotating disc from being out of the mounting groove.

7. The bearing press installation of claim 2, wherein: The lifting rod is threadedly connected with a supporting block after penetrating out of the loading table, and the supporting block is used for being abutted against the lower side of the bearing hole.

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