Bearing mounting tool

Abstract

The utility model relates to a bearing installation tool, which relates to the machine tool assembly technology field, and comprises a support arm, pull rods used for clamping and supporting a bearing body are symmetrically arranged on the support arm, the distance between the pull rods is adjustable, a screw rod is installed in the middle of the support arm in a threaded manner, and the end part of the screw rod is provided with a pressing ring used for pressing down the bearing. Firstly, the distance between the pull rods is adjustable, the clamping and fixing functions during machining of bearings of different sizes can be achieved, meanwhile, due to the fact that the threaded connection of the screw and the supporting arm is adopted to achieve longitudinal movement of the pressing ring, the knocking installation process can be avoided, the knocking mode is replaced with the gradual pressing mode in the process, and the machining efficiency is improved. Therefore, the reliable safety guarantee is obtained by personnel in the operation process, the accident cost is reduced to the minimum, and meanwhile, the error between the bearing and the bearing mounting hole is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of machine tool assembly process, specifically is a bearing installation frock. BACKGROUND

[0002] The assembly process of a machine tool directly affects the overall precision of the machine tool, in order to improve the precision of the machine tool, the assembly process of the machine tool needs to be improved, and the assembly process includes complete assembly process procedures and reasonable assembly process frocks.

[0003] In order to meet the assembly conditions, workers need various frock jigs during the assembly process, and as an important component of a transmission part, the assembly process of a bearing is the most important. The common bearing assembly method at present is a knocking type, a sleeve with the same size as the bearing is used to knock the bearing, and the bearing is knocked into the bearing hole or is installed in cooperation with the installation shaft. This method has the following problems, firstly, the knocking method directly acts on the bearing body, which can cause damage to the outer surface of the bearing and the internal balls, then the knocking force is uncontrollable, the transmission direction is uncontrollable, which can easily cause angle errors between the bearing and the bearing installation hole, affect the use precision of the bearing, at the same time, if manual knocking is used during the operation process, the safety of the operator cannot be guaranteed, and the operator's hands can be easily injured, finally, the bearing specifications used by different types of machine tools are also different, and different size sleeve frocks need to be made according to the specifications of the used bearings, and the universality of the frock is poor.

[0004] For example, in the patent file with the application number 202120770909.8, it is specifically disclosed that the workpiece and the bearing are assembled together through the cooperation of limiting and knocking. In the technical scheme, the knocking force is uncontrollable, which can easily cause angle errors between the bearing and the bearing installation hole, affecting the production precision of the bearing. UTILITY MODEL CONTENTS

[0005] The technical problem solved by the utility model is that when the workpiece and the bearing are assembled through the knocking force in the prior art, errors can easily occur between the bearing and the bearing installation hole.

[0006] The utility model can be implemented through the following technical scheme: a bearing installation frock, including a supporting arm, a plurality of pull rods for clamping and supporting the bearing body are symmetrically arranged on the supporting arm, the distance between the pull rods is adjustable, a screw rod is screw-mounted in the middle of the supporting arm, and a pressing ring for pressing the bearing is arranged at the end of the screw rod.

[0007] Further technical improvement of the utility model lies in that a connecting cover is fixedly installed at the end of the screw rod, a connecting rod is detachably arranged on the connecting cover, and the end of the connecting rod away from the connecting cover is detachably connected with the pressing ring.

[0008] The further technical improvement of the utility model lies in: the limit sliding groove is set on the support arm, the pull rod and the support arm are connected through the shaft position screw, and a plurality of mounting holes for matching the shaft position screw are evenly set on the pull rod.

[0009] The further technical improvement of the utility model lies in: the end mounting hole is set on the end of the pull rod away from the support arm, and the pull claw is arranged on the side of the pull rod, and the pull claw and the end mounting hole are connected through the first connecting screw.

[0010] The further technical improvement of the utility model lies in: the matching groove is set on the side of the pull claw, the matching protrusion is fixed on the side of the pull rod, and the matching protrusion and the matching groove are connected.

[0011] The further technical improvement of the utility model lies in: the end mounting hole is set on the end of the pull rod away from the support arm, and the lock block is arranged on the side of the pull rod, and the lock block and the end mounting hole are connected through the first connecting screw.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1、 the present application is through the symmetrical setting of the pull rod for clamping and supporting the bearing body on the support arm, and the distance between the pull rods is adjustable, and the threaded screw rod is installed in the middle of the support arm, the downward movement of the pressing ring is controlled through the rotation of the screw rod, so that the bearing is pressed down, in this process, the distance between the pull rods is adjustable, the clamping and fixing function of different size bearings during processing can be realized, at the same time, the longitudinal movement of the pressing ring is realized by the threaded connection of the screw rod and the support arm, which can avoid the knocking installation process, the knocking mode is replaced by the gradual pressing mode, so that the personnel in the operation process obtains reliable safety guarantee, reduces the accident cost to the minimum, and reduces the error between the bearing and the bearing mounting hole.

[0014] 2、 the present application is through the fixed installation of the connecting cover on the end of the screw rod, the detachable connection of the connecting rod on the connecting cover, and the detachable connection of the pressing ring on the end of the connecting rod away from the connecting cover, so that the connecting rod and the pressing ring can be replaced according to the size of the processed bearing, so that various sizes of bearings can be applied, and the applicability of the tool to bearing processing is ensured.

[0015] 3、 the present application is through the setting of the clamping jaw or the lock block, so that the clamping jaw or the lock block can be selected according to the shape of the bearing to clamp and limit the bearing, so that the stability of the bearing during processing can be ensured, the precision of the bearing during processing can be further ensured, and the positional deviation caused by the downward pressing of the bearing to the bearing mounting hole can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to facilitate the understanding of those skilled in the art, the utility model will be further described in combination with the drawings.

[0017] Figure 1 It is the whole structure schematic view of the utility model;

[0018] Figure 2 It is the pull rod structure schematic view of the utility model;

[0019] Figure 3 It is the pull claw installation structure schematic view of the utility model;

[0020] Figure 4 It is the connecting rod installation structure schematic view of the utility model;

[0021] Figure 5 It is the connecting rod structure schematic view of the utility model;

[0022] Figure 6 It is the locking block installation structure schematic view of the utility model.

[0023] In the drawing: 1, support arm; 2, screw rod; 3, pull rod; 4, shaft position screw; 5, pull claw; 6, connecting cover; 7, connecting rod; 8, compression ring; 9, first connecting screw; 10, second connecting screw; 11, locking block. DETAILED DESCRIPTION

[0024] In order to further explain the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific embodiments, structures, features and effects according to the utility model will be described in detail as follows in combination with the drawings and preferred embodiments.

[0025] Please refer to Figures 1-6 As shown in the figure, a bearing installation tool includes a support arm 1, wherein the support arm 1 is a supporting framework, a limiting sliding slot is symmetrically formed on the support arm 1, and a pull rod 3 is arranged on the limiting sliding slot; at this time, the pull rod 3 and the support arm 1 are installed at an angle of ninety degrees; the distance between the two groups of pull rods 3 is adjusted by adjusting the position of the pull rod 3 in the limiting sliding slot; then the position of the pull rod 3 and the limiting sliding slot is limited by using a shaft position screw 4; in this application, the position limiting function of the shaft position screw 4 is mainly realized by cooperation of the shaft position screw 4 and the limiting sliding slot; at this time, one end of the shaft position screw 4 is fixed with a limiting protrusion, the shaft position screw 4 passes through the limiting sliding slot, and the shaft position screw 4 passes through the mounting hole on the pull rod 3; a limiting nut is threadedly installed at the end of the shaft position screw 4 away from the limiting protrusion; the limiting protrusion at the end of the shaft position screw 4 is tightly attached to the support arm 1 by rotating the limiting nut; at this time, the position of the pull rod 3 can be fixed; therefore, in this embodiment, the position of the pull rod 3 can be adjusted and fixed; a plurality of mounting holes are uniformly formed on the pull rod 3, which are used to adjust the height of the pull rod 3, i.e., the mounting holes are used to cooperate with the shaft position screw 4.

[0026] Further, the screw rod 2 is arranged through the middle position of the supporting arm 1, the screw rod 2 is screwed with the supporting arm 1, the connecting cover 6 is fixedly arranged at the end of the screw rod 2, three groups of supporting through holes are formed in the connecting cover 6, the connecting rods 7 are arranged on the connecting cover 6 through the second connecting screws 10, the connecting rods 7 are arranged in three groups, and the ends, away from the second connecting screws 10, of the connecting rods 7 are arranged on the pressing ring 8, that is, the two ends of the connecting rods 7 are respectively provided with threaded holes, the threaded holes are screwed with the connecting cover 6 and the second connecting screws 10, so that the connecting rods 7 and the connecting cover 6 are fixedly arranged, meanwhile, the side, close to the pressing ring 8, of the connecting rods 7 is screwed with another connecting screw, so that the connecting rods 7 and the pressing ring 8 are fixedly arranged, so that the pressing ring 8 is arranged, in the embodiment, the connecting rods 7 can be replaced, that is, the connecting rods 7 are replaced according to the length required in the installation process, so that the long and short stroke requirements are met, meanwhile, the pressing ring 8 can also be replaced, and the appropriate pressing ring 8 is selected according to the specification of the bearing to be arranged, so that the pressing ring 8 is suitable for different bearing sizes.

[0027] Further, the end mounting hole is arranged at the end, away from the supporting arm 1, of the pull rod 3, the matching protrusions are fixedly arranged on the side edges of the pull rod 3, after the first connecting screw 9 passes through the end mounting hole of the pull rod 3 and the matching holes of the pull claws 5, the pull claws 5 are arranged by using the cooperation of the nut and the first connecting screw 9, the matching grooves are formed in the side edges of the pull claws 5, the matching grooves are matched with the matching protrusions, and the limiting function of the pull rod 3 and the pull claws 5 is realized.

[0028] As a further embodiment of the application, the pull claws 5 can be replaced by the locking blocks 11, and the locking blocks 11 are used for the functions of pushing, pulling and fixing, and the installation of the locking blocks 11 can realize the installation operation of the shaft parts and the bearing. The rotating screw rod 2 is downwardly rotated, the bearing is pressed into the bearing hole, and the installation of the bearing is gradually completed. The installation method is of the pressing type, and the method has good protection effects on the safety of the bearing body and the operator.

[0029] In use, first, the size of the bearing to be processed is considered, so the connecting rods 7 can be replaced, that is, the connecting rods 7 are replaced according to the length required in the installation process, so that the long and short stroke requirements are met, meanwhile, the pressing ring 8 can also be replaced, and the appropriate pressing ring 8 is selected according to the specification of the bearing to be arranged, so that the pressing ring 8 is suitable for different bearing sizes, the bearing body is pushed and pulled and fixed by the functions of the pull claws 5 or the locking blocks 11, so that the bearing body is limited in a certain position, the screw rod 2 is rotated, the relative position between the screw rod 2 and the supporting arm 1 is controlled, the pressing ring 8 is longitudinally moved, when the pressing ring 8 contacts the bearing, the bearing is pressed into the bearing hole of the bearing body, and the installation of the whole bearing is realized.

[0030] In the operation process, first, the application can replace the connecting rod 7 and the compression ring 8 according to the actual production demand, then the application can adjust the position of the pull rod 3, so as to realize the adjustment of the use length of the tool, and in the application, the pull claw 5 can be replaced to meet the different application scene requirements, the overall versatility of the tool in the application is high, the different use requirements can be met by replacing a few parts, the production cost control effect is good, and the application adopts the screw rod 2 advancing mode, there is no knocking and other human risks, the personnel obtains reliable safety guarantee in the operation process, and the accident cost is reduced to the minimum.

[0031] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form, although the utility model has been disclosed as above with a preferred embodiment, however, it is not intended to limit the utility model, any person skilled in the art can make slight changes or modifications to the equivalent embodiments of equivalent changes within the scope of the technical scheme of the utility model by using the disclosed technical content, as long as it does not deviate from the technical scheme of the utility model, any indirect modification, equivalent change and modification of the above embodiments according to the technical essence of the utility model still belong to the scope of the technical scheme of the utility model.

Claims

1. A bearing mounting tool comprising a support arm (1) characterised in that: The pull rod (3) is symmetrically arranged on the support arm (1) and is used for clamping and supporting the bearing body, the distance between the pull rods (3) is adjustable, the screw rod (2) is screwedly installed in the middle of the support arm (1), and the end of the screw rod (2) is provided with a pressing ring (8) used for pressing the bearing.

2. The bearing mounting tool of claim 1, wherein The end of the screw rod (2) is fixedly installed with a connecting cover (6), the connecting cover (6) is detachably provided with a connecting rod (7), and the end, away from the connecting cover (6), of the connecting rod (7) is detachably connected with the pressing ring (8).

3. The bearing mounting tool of claim 1, wherein The support arm (1) is provided with a limiting sliding groove, the pull rod (3) and the support arm (1) are connected through an axial screw (4), and a plurality of mounting holes, used for cooperating with the axial screw (4), are uniformly arranged on the pull rod (3).

4. The bearing mounting tool of claim 1, wherein, The end, away from the support arm (1), of the pull rod (3) is provided with an end mounting hole, and the pull rod (3) is detachably provided with a pull claw (5) on the side edge, and the pull claw (5) and the end mounting hole are connected through a first connecting screw (9).

5. A bearing mounting tool according to claim 4, wherein The side edge of the pull claw (5) is provided with a matching groove, the side edge of the pull rod (3) is fixedly provided with a matching protrusion, and the matching protrusion and the matching groove are connected in a matching mode.

6. The bearing mounting tool of claim 1, wherein, The end, away from the support arm (1), of the pull rod (3) is provided with an end mounting hole, and the pull rod (3) is detachably provided with a locking block (11) on the side edge, and the locking block (11) and the end mounting hole are connected through a first connecting screw (9).

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