A control box shell bearing quick press fitting clamp

Abstract

The utility model belongs to tool fixture technical field, concretely relates to a control box shell bearing quick press -fit clamp, including base, the top of base rotatory connection has the rotary table, the top edge of rotary table is fixedly connected with a pair of fixed plate along the axis symmetry, the lateral wall of a pair of fixed plate all horizontal screw thread connection has first screw rod, the opposite end of a pair of first screw rod rotatory connection has first limit board and second limit board, the lateral wall fixed connection of base has mounting bracket, the top of mounting bracket is fixedly connected with mounting panel in the side edge away from rotary table, the lateral wall horizontal screw thread connection of mounting panel has second screw rod, one end of second screw rod is provided with the top plate towards rotary table. The utility model has the beneficial effects that can realize the quick clamping and the reversal of control box shell in horizontal direction, effectively improve the clamping and the press -fit efficiency, can avoid the deflection of control box shell when press -fit simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of tooling and fixture technology, specifically a quick press-fit fixture for bearings on a control box housing. Background Technology

[0002] Control boxes are indispensable low-voltage power distribution devices in power systems, specifically designed for power and lighting distribution and motor control. They are widely used in factories, mines, enterprises, shopping malls, schools, hospitals, and other locations, supporting indoor wall mounting or outdoor floor mounting. Their core function is to achieve precise control and protection of electrical equipment by integrating switching equipment, protective electrical appliances, and auxiliary components. Control boxes offer flexible and diverse control methods, including direct start, star-delta reduced voltage start, autotransformer reduced voltage start, frequency converter start, and soft start, adaptable to different load requirements. The control boxes use enclosed or semi-enclosed metal cabinets with a compact internal component layout, providing dustproof and waterproof characteristics. Some models also feature explosion-proof capabilities, suitable for flammable and explosive environments. When assembling the screws, bearings must first be press-fitted into the side wall of the control box shell. At this time, clamps are needed to limit and fix the control box shell.

[0003] However, the control box housing is usually an irregular shell-shaped workpiece. When pressing the bearing, it is usually necessary to fix the bearing mounting part on the side wall of the workpiece downwards. The clamping efficiency is low, and the workpiece is difficult to keep stable when pressing the bearing, and it is easy to deform under pressure. Utility Model Content

[0004] The purpose of this invention is to solve the problems of low clamping efficiency of existing bearing press-fit fixtures and easy deformation of the control box housing during bearing press-fitting.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A quick-press-fit fixture for bearings on a control box housing includes a base, a turntable rotatably connected to the top of the base, a rotating mechanism inside the base, a pair of fixing plates symmetrically fixed along the axis of the top edge of the turntable, a first lead screw horizontally threaded to the sidewall of each pair of fixing plates, a first limiting plate and a second limiting plate rotatably connected to the opposing ends of the pair of first lead screws, a mounting bracket fixedly connected to the sidewall of the base, a mounting plate fixedly connected to the top edge of the mounting bracket away from the turntable, a second lead screw horizontally threaded to the sidewall of the mounting plate, a top plate provided at the end of the second lead screw facing the turntable, and several positioning pins detachably provided on the top of the turntable.

[0007] Furthermore, a pair of guide rods are arranged parallel to each other on both sides of the second lead screw, and the guide rods are slidably connected to the mounting plate.

[0008] Furthermore, the second lead screw is hinged to the top plate via the first hinge seat, and the end of the guide rod facing the turntable is hinged to the top plate via the second hinge seat. The second lead screw is rotatably connected to the first hinge seat, and the second hinge seat is slidably connected to the top plate.

[0009] Furthermore, the first limiting plate is arc-shaped, and the ends of the first and second lead screws away from the turntable are both fixedly connected with handles.

[0010] Furthermore, the rotating mechanism includes a motor, which is fixedly connected to the outer side wall of the base, and the motor shaft is fixedly connected to a drive gear.

[0011] Furthermore, a worm gear is fixedly connected to the bottom axis of the turntable, and a worm is meshed with the side of the worm gear. The two ends of the worm are rotatably connected to the inner wall of the base. A driven gear is fixedly connected to the outer side of the end of the worm facing the motor, and the drive gear meshes with the driven gear.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. The present invention provides a quick pressing fixture for bearings on a control box housing. By providing a turntable, a first lead screw, a first limiting plate, and a second limiting plate, it can achieve quick clamping and reversing of the control box housing in the horizontal direction, effectively improving clamping and pressing efficiency, and at the same time preventing the control box housing from tilting during pressing.

[0014] 2. The present invention provides a quick pressing fixture for bearings on a control box housing. By providing a second lead screw and a top plate, it can support the bearing pressing part of the control box housing during bearing pressing, thereby preventing the control box housing from deforming under pressure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall assembly structure of a quick press-fit fixture for bearings in a control box housing according to the present invention.

[0016] Figure 2 This is a top view schematic diagram of a quick press-fit fixture for bearings on a control box housing according to the present invention.

[0017] Figure 3 This is a schematic diagram of a control box housing bearing quick press-fitting fixture rotation mechanism according to the present invention.

[0018] Figure 4 This is a schematic diagram of the control box housing structure of a quick press-fit fixture for bearing housing of the present invention.

[0019] In the diagram: 1. Base; 2. Turntable; 3. Fixing plate; 4. First lead screw; 5. First limiting plate; 6. Second limiting plate; 7. Mounting bracket; 8. Mounting plate; 9. Second lead screw; 10. Top plate; 11. Guide rod; 12. Handle; 13. Positioning pin; 14. Rotating mechanism; 1401. Motor; 1402. Drive gear; 1403. Worm gear; 1404. Worm wheel; 1405. Driven gear. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-2The control box housing bearing quick-press fixture of this embodiment includes a base 1, a turntable 2 rotatably connected to the top of the base 1, a rotating mechanism 14 inside the base 1 for driving the turntable 2 to rotate, a pair of fixing plates 3 symmetrically fixed along the axis of the top edge of the turntable 2, a first lead screw 4 horizontally threaded to the side wall of each pair of fixing plates 3, a first limiting plate 5 and a second limiting plate 6 rotatably connected to the opposite ends of the pair of first lead screws 4, and a mounting bracket 7 fixedly connected to the side wall of the base 1, the top edge of the mounting bracket 7 away from the turntable 2 being fixedly... A mounting plate 8 is fixedly connected, and a second lead screw 9 is horizontally threaded to the side wall of the mounting plate 8. A top plate 10 is provided at the end of the second lead screw 9 facing the turntable 2. Several positioning pins 13 are detachably provided on the top of the turntable 2. A pair of guide rods 11 are arranged parallel to each other on both sides of the second lead screw 9. The guide rods 11 are slidably connected to the mounting plate 8. The second lead screw 9 is hinged to the top plate 10 through a first hinge seat. The end of the guide rod 11 facing the turntable 2 is hinged to the top plate 10 through a second hinge seat. The second lead screw 9 is rotatably connected to the first hinge seat, and the second hinge seat is slidably connected to the top plate. When press-fitting the bearings into the control box housing, it is first placed horizontally on top of the turntable 2. Initial positioning is achieved using locating pins 13. Then, the first lead screws 4 on both sides are rotated, causing the first limiting plate 5 and the second limiting plate 6 to move towards each other until they abut against the outer wall of the control box housing, thus limiting the control box housing. Next, the second lead screw 9 is rotated, causing the top plate 10 to move towards the side wall of the bearing mounting portion of the control box housing. During the movement of the top plate 10, the guide rod 11 limits its direction of movement until it abuts against the outer wall of the control box housing. At this point, the top plate 10, under the thrust of the control box housing, begins to rotate around the first hinge seat, causing the second hinge seats on both sides to slide on the outer side of the top plate 10 until it is tightly fitted against the outer wall of the control box housing, improving the support effect of the top plate 10 on the control box housing. Then, the control box... The lifting mechanism of the top plate of the outer casing drives the horizontally positioned pressing cylinder to move to the inside of the control box outer casing, so that the piston rod of the pressing cylinder is coaxially aligned with the bearing mounting hole on the side wall of the control box outer casing. At this time, the bearing is placed on the pressure head at the end of the piston rod of the pressing cylinder, and then the pressing cylinder drives the pressure head to press the bearing into the bearing mounting hole at the corresponding position on the control box outer casing. After the bearing on one side is pressed, the top plate 10 is reset, and the rotating mechanism 14 drives the turntable 2 to rotate 180°. Then the above steps are repeated to press the bearing on the other side of the control box outer casing. This enables rapid clamping and reversing of the control box outer casing in the horizontal direction, effectively improving clamping and pressing efficiency, while preventing the control box outer casing from tilting during pressing. It can also support the bearing pressing part of the control box outer casing during bearing pressing, preventing the control box outer casing from deforming under pressure.

[0022] The first limiting plate 5 is arc-shaped, and handles 12 are fixedly connected to the ends of the first lead screw 4 and the second lead screw 9 away from the turntable 2. The arc-shaped first limiting plate 5 can improve its clamping effect on the control box housing, and the handles 12 facilitate the rotation of the first lead screw 4 and the second lead screw 9.

[0023] The rotating mechanism 14 includes a motor 1401, which is fixedly connected to the outer wall of the base 1. The rotating shaft of the motor 1401 is fixedly connected to a drive gear 1402. A worm gear 1404 is fixedly connected to the bottom axis of the turntable 2. A worm 1403 is meshed with the side of the worm gear 1404. The two ends of the worm 1403 are rotatably connected to the inner wall of the base 1. A driven gear 1405 is fixedly connected to the outer side of the end of the worm 1403 facing the motor 1401. The drive gear 1402 meshes with the driven gear 1405. When the turntable 2 rotates, the motor 1401 drives the drive gear 1402 to rotate, which in turn drives the driven gear 1405 to rotate. At this time, the worm 1403 rotates, which drives the worm wheel 1404 to rotate, causing the turntable 2 to rotate accordingly. By providing the worm wheel 1404 and the worm 1403, the turntable 2 can be self-locked, preventing it from rotating during bearing press-fitting.

[0024] Working Principle: When pressing the bearing into the control box housing, it is first placed horizontally on top of the turntable 2. Initial positioning is achieved using the positioning pin 13. Then, the first lead screw 4 on both sides is rotated, causing the first limiting plate 5 and the second limiting plate 6 to move towards each other until they abut against the outer wall of the control box housing, thus limiting the control box housing. Next, the second lead screw 9 is rotated, causing the top plate 10 to move towards the side wall of the bearing mounting portion of the control box housing. During the movement of the top plate 10, the guide rod 11 limits its direction of movement until it abuts against the outer wall of the control box housing. At this point, the top plate 10, under the thrust of the control box housing, begins to rotate around the first hinge seat, causing the second hinge seats on both sides to slide on the outer side of the top plate 10 until it is tightly fitted against the outer wall of the control box housing, improving the support effect of the top plate 10 on the control box housing. Then, the lifting mechanism of the top plate of the control box housing... The horizontally positioned press-fit cylinder is driven to move to the inside of the control box housing, ensuring that the piston rod of the press-fit cylinder is coaxially aligned with the bearing mounting hole on the side wall of the control box housing. The bearing is then placed on the pressure head at the end of the piston rod of the press-fit cylinder, and the press-fit cylinder drives the pressure head to press the bearing into the corresponding bearing mounting hole on the control box housing. After one side of the bearing is press-fitted, the top plate 10 resets, and the rotating mechanism 14 drives the turntable 2 to rotate 180°. As the turntable 2 rotates, the motor 1401 drives the drive gear 1402 to rotate, causing the driven gear 1405 to rotate. At this time, the worm gear 1403 rotates, driving the worm wheel 1404 to rotate, thus rotating the turntable 2. The worm wheel 1404 and worm gear 1403 provide a self-locking mechanism, preventing the turntable 2 from rotating during bearing press-fitting. The above steps are then repeated to press-fit the bearing on the other side of the control box housing.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick press-fit fixture for bearings on a control box housing, characterized in that: The system includes a base (1), a turntable (2) is rotatably connected to the top of the base (1), a rotating mechanism (14) is provided inside the base (1), a pair of fixed plates (3) are fixedly connected symmetrically along the axis of the top edge of the turntable (2), a first screw (4) is horizontally threaded to the side wall of each pair of fixed plates (3), a first limiting plate (5) and a second limiting plate (6) are rotatably connected to the opposite ends of the pair of first screws (4), a mounting bracket (7) is fixedly connected to the side wall of the base (1), a mounting plate (8) is fixedly connected to the top edge of the mounting bracket (7) away from the turntable (2), a second screw (9) is horizontally threaded to the side wall of the mounting plate (8), a top plate (10) is provided at the end of the second screw (9) facing the turntable (2), and a number of positioning pins (13) are detachably provided on the top of the turntable (2).

2. The quick-press-fit fixture for bearings of a control box housing according to claim 1, characterized in that: A pair of guide rods (11) are arranged parallel to each other on both sides of the second lead screw (9), and the guide rods (11) are slidably connected to the mounting plate (8).

3. The quick-press-fit fixture for bearings of a control box housing according to claim 2, characterized in that: The second lead screw (9) is hinged to the top plate (10) through the first hinge seat. The end of the guide rod (11) facing the turntable (2) is hinged to the top plate (10) through the second hinge seat. The second lead screw (9) is rotatably connected to the first hinge seat, and the second hinge seat is slidably connected to the top plate.

4. The quick-press-fit fixture for bearings of a control box housing according to claim 1, characterized in that: The first limiting plate (5) is arc-shaped, and the first lead screw (4) and the second lead screw (9) are both fixedly connected to a handle (12) at the end away from the turntable (2).

5. A quick-press-fit fixture for bearings of a control box housing according to claim 1, characterized in that: The rotating mechanism (14) includes a motor (1401), which is fixedly connected to the outer wall of the base (1), and the rotating shaft of the motor (1401) is fixedly connected to a drive gear (1402).

6. A quick press-fit fixture for bearings of a control box housing according to claim 5, characterized in that: A worm gear (1404) is fixedly connected to the bottom axis of the turntable (2). A worm (1403) is meshed with the side of the worm gear (1404). The two ends of the worm (1403) are rotatably connected to the inner wall of the base (1). A driven gear (1405) is fixedly connected to the outer side of the end of the worm (1403) facing the motor (1401). The drive gear (1402) meshes with the driven gear (1405).

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