Rotor assembly pressing all-in-one machine tool

By designing an all-in-one tooling for pressing the rotor assembly, the problems of bearing damage and retaining spring deformation during the rotor insertion process of the power tool polisher are solved, and the rotor bearing is quickly positioned and the retaining spring is accurately assembled, which reduces costs and improves efficiency.

CN223406737UActive Publication Date: 2025-10-03ZHEJIANG JINGCHUANG TOOLS CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422575054.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-24
Publication Date
2025-10-03
Estimated Expiration
2034-10-24

AI Technical Summary

Technical Problem

In the prior art, when the rotor of an electric tool polisher is inserted into the head shell, the end face of the inner ring of the bearing is easily damaged, the retaining ring is easily deformed and misplaced, and the use of two sets of tooling is costly and inefficient.

Method used

A tooling for an integrated rotor pressing machine is designed. The elastic limitation of the rotor bearing and the positioning of the retaining spring are achieved through a single tooling. A limit seat, a positioning buckle and an auxiliary positioning structure are used to reduce the number of operating steps and avoid bearing collision and retaining spring deformation.

Benefits of technology

The rapid positioning of the rotor bearing and the accurate assembly of the retaining spring are achieved, which reduces costs, improves efficiency, and avoids the risks of bearing damage and retaining spring deformation.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223406737U_ABST
    Figure CN223406737U_ABST
Patent Text Reader

Abstract

The utility model discloses a rotor assembly pressing all-in-one machine tool which comprises a bottom plate, a top plate movably installed on the upper portion of the bottom plate, a limiting base installed in the center of the top plate, a limiting structure and an auxiliary positioning structure installed on the upper portion of the bottom plate, and the limiting structure comprises a front clamping plate movably installed on the upper portion of the bottom plate, and a clamping groove is formed in the upper portion of the front clamping plate. A positioning buckle is movably installed on the front side of the front clamping plate, the auxiliary positioning structure comprises a limiting disc installed on the upper portion of the front clamping plate, and the vertical center points of a limiting base and the positioning buckle are consistent. According to the tool disclosed by the utility model, the movably mounted top plate is matched with the positioning buckle on the front side of the front clamping plate to elastically limit the bearing mounted on the rotor, a pair of tools is used for completing one-station one-time limiting, and the clamping groove formed in the front side of the front clamping plate and the limiting seat formed in the front side of the limiting disc are matched to complete composite limiting of the bearing mounted on the rotor, so that the operation is convenient and fast; only one tool is used, the cost is reduced, meanwhile, automatic press fitting is achieved through the tool, and the risks of snap spring deformation and not-in-place mounting are avoided.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to a tooling for a compacting rotor assembly integrated machine. Background Art

[0002] Inserting the rotor into the housing of a power tool polisher is a three-step process: first, the rotor presses the bearing, then the rotor is inserted into the housing with a sealing ring, and then the circlip is manually inserted using circlip pliers. This method of inserting the rotor into the housing can easily cause stress on the end face of the bearing inner ring, damaging the flatness of the bearing end face. If the circlip is installed manually using circlip pliers, improper force may cause the circlip to deform or not fit properly.

[0003] The current method of inserting the rotor into the housing—first pressing the rotor into the bearing, then pressing the rotor into the housing, and then manually inserting the circlip with circlip pliers—has three drawbacks. First, the rotor is installed with the bearing before being inserted into the housing. This operation uses the bearing for positioning, and the force applied to the inner ring end face of the bearing can damage the flatness of the inner ring end face, reducing the bearing's service life. Second, manual installation of the circlip can cause deformation and improper installation. If the circlip is not properly installed, the gear contact area will be reduced, shortening the gear life. Third, the use of two sets of tooling is costly and inefficient, necessitating the need for a single-machine tool for pressing the rotor assembly. Utility Model Content

[0004] The purpose of this utility model is to provide a tooling for an integrated press rotor assembly, which solves the problems of bearing stress, retaining spring deformation and improper installation through a pair of tooling. It is suitable for all models of polishing machines to solve the technical problems mentioned in the background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tooling for a press rotor assembly, comprising a bottom plate, a top plate movably mounted on the upper portion of the bottom plate, and a limit seat mounted at the center of the top plate;

[0006] A limiting structure and an auxiliary positioning structure are installed on the upper portion of the base plate;

[0007] The limiting structure includes a front card plate movably mounted on the upper portion of the bottom plate, a card slot is provided on the upper portion of the front card plate, and a positioning buckle is movably mounted on the front side of the front card plate;

[0008] The auxiliary positioning structure includes a limit plate installed on the upper part of the front card;

[0009] The vertical center points of the limiting seat and the positioning buckle are consistent.

[0010] Preferably, two groups of support rods are symmetrically installed on both sides of the upper surface of the bottom plate, and each group of support rods is sheathed with a group of support springs, and the top ends of the two groups of support rods pass through the top plate and extend out.

[0011] Preferably, the top end of the support spring is fixedly connected to the lower surface of the top plate, the support rod is located at the top end of the top plate and a pressure plate is sleeved on the outer arc surface thereof, and the top plate is movably pressed against the surface of the pressure plate.

[0012] Preferably, a positioning plate is fixedly installed in the middle of the upper surface of the base plate, the front card plate is installed on the front side of the positioning plate, and two groups of elastic support rods are symmetrically installed on the upper surface of the base plate at the lower part of the front card plate, and the two groups of elastic support rods are correspondingly inserted into the interior of the front card plate.

[0013] Preferably, a groove is provided on the front side of the front clamping plate, a height adjustment bolt is rotatably installed inside the groove, a positioning buckle is installed on the upper part of the height adjustment bolt, and a protective gasket is installed on the top of the positioning buckle.

[0014] Preferably, two groups of positioning rods are symmetrically installed on the upper surface of the base plate on both sides of the positioning plate, the limiting plate is installed on the top of the two groups of positioning rods, and an arc groove is opened on the front side of the limiting plate.

[0015] Preferably, the positioning plate and the front side of the limiting disk are movably connected to install a rotor bearing, the rotor bearing is clamped with the positioning buckle and the arc groove, and the limiting seat movably presses the top end of the rotor bearing.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The tooling design of the utility model elastically limits the rotor bearing through the cooperation of the movably installed top plate and the positioning buckle on the front side of the front clamping plate, and completes it at one time using one set of tooling and one workstation, and cooperates with the card slot opened on the front side of the front clamping plate and the limiting seat opened on the front side of the limiting plate to complete the composite limiting of the rotor bearing. The advantages of its use are that the original three working steps are reduced to one, and the operation is convenient; at the same time, the device only uses one set of tooling, which reduces costs; and the new tooling uses different positioning to avoid bearing collisions; at the same time, the tooling is automatically pressed to avoid the risk of deformation of the retaining spring and improper installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the rear side of the overall structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the overall structure of the front card board of the present utility model.

[0021] In the figure: 1. Base plate; 2. Support rod; 3. Support spring; 4. Top plate; 5. Pressure plate; 6. Limit seat; 7. Positioning plate; 8. Front clamping plate; 9. Clamping slot; 10. Height adjustment bolt; 11. Positioning buckle; 12. Protective gasket; 13. Elastic support rod; 14. Positioning rod; 15. Limit plate; 16. Arc groove; 17. Rotor bearing. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides: a press rotor assembly integrated machine tool, such as Figure 1-Figure 3 As shown, it includes a bottom plate 1, a top plate 4 is movably installed on the upper part of the bottom plate 1, and a limit seat 6 is installed in the center of the top plate 4. The top plate 4 on the upper part of the bottom plate 1 is automatically pressed down by the tension of the support spring 3, and cooperates with the limit seat 6 installed in the middle of the top plate 4 to complete the limit of the top of the rotor bearing 17. The set support spring 3 will continuously pull the top plate 4, so that the rotor bearing 17 can be directly pressed by the limit seat 6 after being placed inside the device, and the lifting device is convenient to use, and the upper part of the top plate 4 can be connected to the external electric push rod;

[0024] A limiting structure and an auxiliary positioning structure are installed on the upper part of the base plate 1;

[0025] The limiting structure includes a front clamping plate 8 movably mounted on the upper part of the base plate 1, a clamping slot 9 is opened on the upper part of the front clamping plate 8, and a positioning buckle 11 is movably mounted on the front side of the front clamping plate 8. The positioning buckle 11 set on the front side of the front clamping plate 8 limits the bottom of the rotor bearing 17 and cooperates with the downward-pressed limiting seat 6 to complete the rapid positioning of the rotor bearing 17;

[0026] The auxiliary positioning structure includes a limit plate 15 installed on the upper part of the front clamping plate 8. The limit plate 15 is used to provide auxiliary positioning for the rotor bearing 17, thereby improving the convenience of placing the rotor bearing 17 into the device and improving the accuracy of the positioning of the rotor bearing 17 by the limit seat 6 and the positioning buckle 11;

[0027] The vertical center points of the limit seat 6 and the positioning buckle 11 are consistent, and the vertical centers of the limit seat 6 and the positioning buckle 11 are consistent, which can improve the accuracy of limiting the rotor bearing 17, thereby completing the clamping protection of the rotor bearing 17 and reducing the damage caused by the clamping process of the rotor bearing 17.

[0028] Preferably, two groups of support rods 2 are symmetrically installed on both sides of the upper surface of the base plate 1, and each group of support rods 2 is covered with a group of support springs 3. The top ends of the two groups of support rods 2 extend through the top plate 4. The two groups of support rods 2 installed on the upper surface of the base plate 1 limit the top plate 4, and the support springs 3 installed on the outside of the support rods 2 support the top plate 4, so that the top plate 4 can move up and down to cooperate with the positioning buckle 11 to complete the limiting clamping of the rotor bearing 17, thereby completing the rapid positioning of the rotor bearing 17, and avoiding the risk of deformation of the retaining spring and misinstallation through automatic pressing of the tooling.

[0029] Furthermore, the top end of the support spring 3 is fixedly connected to the lower surface of the top plate 4, and the support rod 2 is located at the top end of the top plate 4 and is sleeved with a pressure plate 5 on the outer arc surface. The top plate 4 is movably pressed against the surface of the pressure plate 5. The pressure plate 5 is provided to limit the top plate 4 to prevent the top plate 4 from detaching from the inside of the support rod 2, thereby improving the stability of the top plate 4 during use, thereby ensuring that the limit seat 6 can be pressed down stably to press and limit the rotor bearing 17, thereby reducing the difficulty of clamping the rotor bearing 17 and avoiding bearing collision.

[0030] Furthermore, a positioning plate 7 is fixedly installed in the middle of the upper surface of the base plate 1, and the front card plate 8 is installed on the front side of the positioning plate 7. Two groups of elastic support rods 13 are symmetrically installed on the upper surface of the base plate 1 at the lower part of the front card plate 8. The two groups of elastic support rods 13 are correspondingly inserted into the interior of the front card plate 8. The positioning plate 7 installed on the upper surface of the base plate 1 limits the front card plate 8, and the two groups of elastic support rods 13 installed on the upper surface of the base plate 1 are further used to limit the top end of the front card plate 8. The specific use height of the front card plate 8 is changed by adjusting the use strength of the elastic support rods 13, thereby completing the limitation of the rotor bearing 17.

[0031] It is worth mentioning that a groove is provided on the front side of the front clamping plate 8, and a height-adjusting bolt 10 is rotatably installed inside the groove, a positioning buckle 11 is installed on the upper part of the height-adjusting bolt 10, and a protective gasket 12 is installed on the top of the positioning buckle 11. The groove provided on the front side of the front clamping plate 8 limits the height-adjusting bolt 10, and the height of the positioning buckle 11 is adjusted by rotating the height-adjusting bolt 10, so as to better cooperate with the limiting seat 6 to quickly clamp the rotor bearing 17. The protective gasket 12 installed on the upper surface of the positioning buckle 11 is used to protect the bottom of the rotor bearing 17, thereby improving the safety of the rotor bearing 17 during the tightening process, reducing the bumping problem caused by the rotor bearing 17 during the tightening process, and avoiding the risk of deformation of the retaining spring and improper installation.

[0032] Specifically, two sets of positioning rods 14 are symmetrically installed on both sides of the positioning plate 7 on the upper surface of the base plate 1, and the limiting plate 15 is installed on the top of the two sets of positioning rods 14. An arc groove 16 is opened on the front side of the limiting plate 15. The two sets of positioning rods 14 are installed to position the limiting plate 15. The arc groove 16 opened on the front side of the limiting plate 15 cooperates with the slot 9 opened on the front side of the front clamping plate 8 to position the auxiliary rotor bearing 17.

[0033] In addition, a rotor bearing 17 is movably mounted on the front side of the positioning plate 7 and the limit plate 15. The rotor bearing 17 is clamped with the positioning buckle 11 and the arc groove 16. The limit seat 6 movably presses the top of the rotor bearing 17. The side of the rotor bearing 17 is clamped into the clamping groove 9 and the arc groove 16 to assist in positioning the rotor bearing 17 in and out, thereby ensuring that the positioning buckle 11 and the limit seat 6 can clamp the rotor bearing 17 from the top and bottom to complete the limiting of the rotor bearing 17.

[0034] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tooling for a press rotor assembly, characterized by: It includes a bottom plate, a top plate is movably mounted on the upper portion of the bottom plate, and a limit seat is mounted at the center of the top plate; A limiting structure and an auxiliary positioning structure are installed on the upper portion of the base plate; The limiting structure includes a front card plate movably mounted on the upper portion of the bottom plate, a card slot is provided on the upper portion of the front card plate, and a positioning buckle is movably mounted on the front side of the front card plate; The auxiliary positioning structure includes a limit plate installed on the upper part of the front card; The vertical center points of the limiting seat and the positioning buckle are consistent.

2. The integrated press rotor assembly tool according to claim 1, characterized in that: Two groups of support rods are symmetrically installed on both sides of the upper surface of the bottom plate. A group of support springs are sleeved on the outside of each group of support rods. The top ends of the two groups of support rods pass through the top plate and extend out.

3. The integrated press rotor assembly tool according to claim 2, characterized in that: The top end of the support spring is fixedly connected to the lower surface of the top plate, the support rod is located at the top end of the top plate, and a pressure plate is sleeved and installed on the outer arc surface, and the top plate is movably pressed against the surface of the pressure plate.

4. The integrated press rotor assembly tool according to claim 3, characterized in that: A positioning plate is fixedly installed on the middle part of the upper surface of the base plate, the front card plate is installed on the front side of the positioning plate, and two groups of elastic support rods are symmetrically installed on the upper surface of the base plate below the front card plate, and the two groups of elastic support rods are correspondingly inserted into the interior of the front card plate.

5. The integrated press rotor assembly tool according to claim 4, characterized in that: A slot is provided on the front side of the front clamping plate, a height-adjusting bolt is rotatably installed inside the slot, a positioning buckle is installed on the upper part of the height-adjusting bolt, and a protective gasket is installed on the top of the positioning buckle.

6. The integrated press rotor assembly tool according to claim 5, characterized in that: Two groups of positioning rods are symmetrically installed on the upper surface of the bottom plate on both sides of the positioning plate, and the limiting plate is installed on the top of the two groups of positioning rods. An arc groove is opened on the front side of the limiting plate.

7. The integrated press rotor assembly tool according to claim 6, characterized in that: The positioning plate and the front side of the limiting disk are movably connected to install a rotor bearing, the rotor bearing is clamped with the positioning buckle and the arc groove, and the limiting seat movably presses the top end of the rotor bearing.