Hard grinding equipment for bearing steel balls based on servo liquid-free pressurization

Abstract

The utility model discloses hard grinding equipment for bearing steel balls based on servo liquid-free pressurization, which comprises a supporting device, a pressing device, a pressing device, a driving device, a driving device, a driving device and a driving device, wherein the outer wall of the supporting device is fixedly connected with the outer wall of the pressing device; according to the steel ball hard grinding device, through the supporting device and the pressing device, a motor in the supporting device drives a rotating shaft and a gear connected with the rotating shaft, then the lower grinding disc is driven to stably rotate along a sliding groove, and a stable steel ball grinding movement environment is formed in cooperation with the upper grinding disc; the rotating amount of a threaded rod is accurately controlled by rotating a rotating handle, so that the pressure of an upper grinding disc on a steel ball is accurately adjusted, meanwhile, a pressing disc is matched with a limiting rod at the top of a fixing disc through a limiting hole, so that the steel ball can be evenly stressed between a first V-shaped groove and a second V-shaped groove and stably ground in a rolling mode, and the steel ball can be stably ground by adjusting the distance between the upper grinding disc and a lower grinding disc. And the hard grinding requirements of bearing steel balls with different diameters are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel ball hard grinding technical field, concretely relates to a kind of hard grinding equipment for bearing steel ball based on servo liquid-free pressurization. BACKGROUND

[0002] In the bearing manufacturing field, the quality of bearing steel ball plays a vital role in the performance of bearing. With the continuous development of industrial technology, higher and higher requirements are put forward for the precision, reliability and service life of bearing, which makes the hard grinding process of bearing steel ball face severe challenges.

[0003] Traditional bearing steel ball hard grinding equipment adopts hydraulic pressurization system to provide pressure in steel ball grinding process. However, the hydraulic system has many drawbacks. On the one hand, hydraulic oil is prone to leakage, which not only pollutes the working environment, but also may cause equipment failure, increase maintenance cost and downtime. On the other hand, the pressure fluctuation of hydraulic system is difficult to accurately control, which easily causes inconsistent surface quality of steel ball. At the same time, when facing the processing of bearing steel balls with different diameters, traditional equipment often needs to replace complex tooling fixtures or make large adjustments to the equipment structure, which makes the production process complicated, low in efficiency, increases production cost and idle time of equipment. SUMMARY

[0004] In view of the deficiencies of the prior art, the utility model solves its technical problems by adopting the following technical scheme: a kind of hard grinding equipment for bearing steel ball based on servo liquid-free pressurization, comprising: support device, the outer wall of support device and the outer wall of lower pressing device are fixedly connected;The support device includes a support plate, a base is fixedly connected to the outer wall of the bottom of the support plate, a fixed disc is fixedly connected to the outer wall of the top of the base, a sliding slot is formed in the outer wall of the top of the fixed disc, a rotating shaft is rotatably connected to the inner wall of the fixed disc, a gear is fixedly connected to the outer wall of the rotating shaft, an electric motor is rotatably connected to the outer wall of the rotating shaft away from the gear, a lower grinding disc is slidably connected to the inner wall of the sliding slot, a first V-shaped groove is formed in the outer wall of the top of the lower grinding disc, a gear slot is formed in the outer wall of the side of the lower grinding disc, and a limiting rod is fixedly connected to the outer wall of the top of the fixed disc.

[0005] Preferably, the limiting rods are arranged on both sides of the lower grinding disc, and the gear slots are arranged in a circular array around the center point of the lower grinding disc.

[0006] Preferably, the outer wall of the electric motor is fixedly connected to the outer wall of the bottom of the fixed disc, the outer wall of the gear is engaged with the inner wall of the gear slot, and the electric motor is started. Since the outer wall of the electric motor is fixedly connected to the outer wall of the bottom of the fixed disc and the rotating shaft of the electric motor is connected to the rotating shaft, the rotating shaft is driven to rotate. The gear on the rotating shaft is engaged with the gear slot on the side of the lower grinding disc. Under the drive of the gear, the lower grinding disc rotates along the sliding slot on the top of the fixed disc.

[0007] Preferably, the pressing device comprises a support frame, the inner wall of the support frame is rotationally connected with a threaded rod, the outer wall of the threaded rod is fixedly connected with a rotating handle, the outer wall of the threaded rod is threadedly connected with a pressing disc, the outer wall of the pressing disc is symmetrically provided with limiting holes, the outer wall of the bottom of the pressing disc is fixedly connected with an upper grinding disc, and the bottom of the outer wall of the upper grinding disc is provided with a second V-shaped groove.

[0008] Preferably, the limiting holes are arranged on both sides of the upper grinding disc and are consistent with the positions of the limiting rods on the fixing plate.

[0009] Preferably, the outer wall of the limiting rod is slidably connected with the inner wall of the limiting hole, the outer wall of the top of the fixing disc is rotationally connected with the outer wall of the side of the threaded rod away from the rotating handle, the outer wall of the support plate is fixedly connected with the outer wall of the support frame, and the fixing disc is arranged below the pressing disc.

[0010] The beneficial effects of the utility model are as follows:

[0011] 1. The utility model discloses a support device, motor drive rotating shaft and the gear connected with it in the support device are arranged, and then drive the lower grinding disc to stably rotate along the sliding groove, cooperate the upper grinding disc to form the stable steel ball grinding movement environment, and the base effectively guarantees the stability of the lower grinding disc in the high -speed rotation process, reduces the adverse effect of equipment vibration on steel ball grinding precision and surface quality.

[0012] 2. The utility model discloses a pressing device, the rotating handle is rotated to accurately control the rotating amount of the threaded rod, thereby accurately adjusting the pressure of the upper grinding disc on the steel ball, the liquid pressure of the mechanical structure avoids the liquid leakage, pressure fluctuation and hydraulic oil pollution of the traditional hydraulic system, and the pressing disc is cooperated with the limiting rod on the top of the fixing disc through the limiting hole, is stable in the process of moving up and down and does not rotate, makes the steel ball be able to be evenly stressed and stably rolled and ground between the first V-shaped groove and the second V-shaped groove, adjusts the distance between the upper grinding disc and the lower grinding disc, adapts the hard grinding requirement of bearing steel ball of different diameter size, does not need to replace a large number of tool fixtures or carry out large -scale reconstruction to the equipment, improves the utilization rate and production flexibility of the equipment. ACCURATE DESCRIPTION

[0013] Figure 1 It is the structure schematic diagram of the utility model;

[0014] Figure 2 It is the structure schematic diagram of the support device of the utility model;

[0015] Figure 3 is the structure diagram of the fixed disc of the utility model;

[0016] Figure 4 is the structure diagram of the lower grinding disc of the utility model;

[0017] Figure 5 is the structure diagram of the pressing device of the utility model;

[0018] Figure 6 is the structure diagram of the upper grinding disc of the utility model.

[0019] In the figure: 1, support device; 11, support plate; 12, base; 13, fixed disc; 131, sliding groove; 14, rotating shaft; 15, gear; 16, motor; 17, lower grinding disc; 171, first V-shaped groove; 172, tooth slot; 18, limiting rod; 2, pressing device; 21, support frame; 22, threaded rod; 23, rotating handle; 24, pressing plate; 25, limiting hole; 26, upper grinding disc; 27, second V-shaped groove. DETAILED DESCRIPTION

[0020] The utility model will be further explained in detail below in combination with the drawings and specific embodiments. The embodiments of the utility model are given for example and description, and are not exhaustive or limit the utility model to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The embodiments are selected and described in order to better illustrate the principles and practical application of the utility model, and enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes. EMBODIMENT

[0021] Please refer to Figure 1 - Figure 6 The utility model provides a technical scheme: a bearing steel ball hard grinding equipment based on servo liquidless pressurization, include: support device 1, the outer wall of support device 1 and the outer wall of pressing device 2 fixed connection, support device 1 includes support plate 11, the outer wall of the bottom of support plate 11 is fixedly connected with base 12, the outer wall of the top of base 12 is fixedly connected with fixed disc 13, the outer wall of the top of fixed disc 13 is equipped with sliding groove 131, the inner wall of fixed disc 13 is connected with rotating shaft 14, the outer wall of rotating shaft 14 is fixedly connected with gear 15, the outer wall of the side, away from gear 15 of rotating shaft 14 is connected with motor 16, the inner wall of sliding groove 131 is connected with lower grinding disc 17, the outer wall of the top of lower grinding disc 17 is equipped with first V-shaped groove 171, the outer wall of the side of lower grinding disc 17 is equipped with tooth slot 172, the outer wall of the top of fixed disc 13 is fixedly connected with limiting rod 18.

[0022] The limiting rods 18 are arranged at both sides of the lower millstone 17, and the tooth grooves 172 are arranged along the axial center of the lower millstone 17.

[0023] The outer wall of the motor 16 is fixedly connected with the outer wall of the bottom of the fixed disc 13, the outer wall of the gear 15 is engaged with the inner wall of the tooth groove 172, and the motor 16 is started. Since the outer wall of the motor 16 is fixedly connected with the outer wall of the bottom of the fixed disc 13 and the rotating shaft of the motor 16 is connected with the rotating shaft 14, the rotating shaft 14 is driven to rotate. The gear 15 on the rotating shaft 14 is engaged with the tooth groove 172 on the side of the lower millstone 17. Under the drive of the gear 15, the lower millstone 17 rotates along the sliding groove 131 on the top of the fixed disc 13.

[0024] The pressing device 2 comprises a support frame 21, the inner wall of the support frame 21 is rotationally connected with a threaded rod 22, the outer wall of the threaded rod 22 is fixedly connected with a rotating handle 23, the outer wall of the threaded rod 22 is threadedly connected with a pressing disc 24, the outer wall of the pressing disc 24 is symmetrically provided with a limiting hole 25, the outer wall of the bottom of the pressing disc 24 is fixedly connected with an upper millstone 26, and the bottom of the outer wall of the upper millstone 26 is provided with a second V-shaped groove 27.

[0025] The limiting hole 25 is arranged at both sides of the upper millstone 26, and the position of the limiting hole 25 is consistent with the position of the limiting rod 18 on the fixed plate 13.

[0026] The outer wall of the limiting rod 18 is slidably connected with the inner wall of the limiting hole 25, the outer wall of the top of the fixed disc 13 is rotationally connected with the outer wall of the side of the threaded rod 22 away from the rotating handle 23, the outer wall of the support plate 11 is fixedly connected with the outer wall of the support frame 21, and the fixed disc 13 is arranged below the pressing disc 24. When the threaded rod 22 rotates along the support frame 21, the pressing disc 24 moves up and down along the threaded rod 22, and the limiting hole 25 on the two sides of the pressing disc 24 is slidably connected with the outer wall of the limiting rod 18 on the top of the fixed disc 13, so that the pressing disc 24 remains stable and does not rotate during the up-and-down movement.

[0027] Working principle: first, the motor 16 in the supporting device 1 is started. Since the outer wall of the motor 16 is fixedly connected with the outer wall of the bottom of the fixed disc 13 and the rotating shaft of the motor 16 is connected with the rotating shaft 14, the rotating shaft 14 is driven to rotate. The gear 15 on the rotating shaft 14 is engaged with the tooth groove 172 on the side of the lower millstone 17. Under the drive of the gear 15, the lower millstone 17 rotates along the sliding groove 131 on the top of the fixed disc 13.

[0028] Then, the operator rotates the knob 23 in the pressing device 2, the knob 23 drives the threaded rod 22 to rotate, since the threaded rod 22 is in threaded connection with the pressing plate 24, and the outer wall of the top of the fixed disc 13 is in rotating connection with the outer wall of the side of the threaded rod 22 far from the knob 23, when the threaded rod 22 rotates along the support frame 21, the pressing plate 24 will move up and down along the threaded rod 22, and the limiting holes 25 on both sides of the pressing plate 24 are in sliding connection with the limiting rods 18 on the top of the fixed disc 13, which makes the pressing plate 24 stable during the up and down movement and cannot rotate.

[0029] With the downward movement of the pressing plate 24, the upper grinding disc 26 fixed on the bottom of the pressing plate 24 also moves downward, the distance between the second V-shaped groove 27 on the bottom of the upper grinding disc 26 and the first V-shaped groove 171 on the top of the lower grinding disc 17 gradually decreases, the bearing steel ball is placed in the first V-shaped groove 171 of the lower grinding disc 17, when the upper grinding disc 26 and the lower grinding disc 17 approach each other, the steel ball is clamped between the first V-shaped groove 171 and the second V-shaped groove 27, the rotation amount of the threaded rod 22 is controlled by adjusting the knob 23, and then the pressure applied by the upper grinding disc 26 to the steel ball is accurately controlled, so that the liquid-free pressurization is realized, and the base 12 ensures the stable operation of the lower grinding disc 17.

[0030] During the continuous rotation of the lower grinding disc 17 driven by the motor 16, the support plate 11 plays a supporting role, since the steel ball is clamped between the upper grinding disc 26 and the lower grinding disc 17, the steel ball will roll between the first V-shaped groove 171 and the second V-shaped groove 27 with the rotation of the lower grinding disc 17, and the pressure of the upper grinding disc 26 on the steel ball, so that the steel ball and the friction surface of the upper grinding disc 26 and the lower grinding disc 17 generate friction force, under the action of the friction force, the surface of the steel ball is ground, so as to achieve the purpose of hard grinding of the bearing steel ball, and different diameters of the steel ball can also be hard ground by the knob 23.

[0031] Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary skilled in the art and related fields without creative labor should belong to the scope of protection of the present application. The structures, devices and operation methods not specifically described and explained in the present application, such as without special description and limitation, are implemented according to the conventional means in the art.

Claims

1. A hard grinding apparatus for bearing steel balls based on servo liquidless pressurization, characterized by, Include: Support device (1), the outer wall of the support device (1) is fixedly connected with the outer wall of the pressing device (2); The support device (1) comprises a support plate (11), the outer wall of the bottom of the support plate (11) is fixedly connected with a base (12), the outer wall of the top of the base (12) is fixedly connected with a fixed disc (13), the outer wall of the top of the fixed disc (13) is provided with a sliding groove (131), the inner wall of the fixed disc (13) is rotatably connected with a rotating shaft (14), the outer wall of the rotating shaft (14) is fixedly connected with a gear (15), the outer wall of the side, away from the gear (15), of the rotating shaft (14) is rotatably connected with a motor (16), the inner wall of the sliding groove (131) is slidably connected with a lower grinding disc (17), the outer wall of the top of the lower grinding disc (17) is provided with a first V-shaped groove (171), the outer wall of the side of the lower grinding disc (17) is provided with a gear slot (172), and the outer wall of the top of the fixed disc (13) is fixedly connected with a limiting rod (18) symmetrically.

2. A hard lapping apparatus for servo fluidless pressurized bearing steel balls as claimed in claim 1, wherein: The limiting rod (18) is arranged on both sides of the lower grinding disc (17), and the gear slot (172) is arranged along the axial point of the lower grinding disc (17) in a circular array.

3. A hard lapping apparatus for servo fluidless pressurized bearing steel balls as claimed in claim 1, wherein: The outer wall of the motor (16) is fixedly connected with the outer wall of the bottom of the fixed disc (13), and the outer wall of the gear (15) is engaged with the inner wall of the gear slot (172).

4. A hard lapping apparatus for servo fluidless pressurized bearing steel balls as claimed in claim 1, wherein: The pressing device (2) comprises a support frame (21), the inner wall of the support frame (21) is rotatably connected with a threaded rod (22), the outer wall of the threaded rod (22) is fixedly connected with a rotating handle (23), the outer wall of the threaded rod (22) is threadedly connected with a pressing disc (24), the outer wall of the pressing disc (24) is symmetrically provided with a limiting hole (25), the outer wall of the bottom of the pressing disc (24) is fixedly connected with an upper grinding disc (26), and the outer wall of the bottom of the upper grinding disc (26) is provided with a second V-shaped groove (27).

5. A hard lapping apparatus for servo fluidless pressurized bearing steel balls as claimed in claim 4 wherein: The limiting hole (25) is arranged on both sides of the upper grinding disc (26).

6. A hard lapping apparatus for servo fluidless pressurized bearing steel balls as claimed in claim 1, wherein: The outer wall of the limiting rod (18) is slidably connected with the inner wall of the limiting hole (25), the outer wall of the top of the fixed disc (13) is rotatably connected with the outer wall of the side, away from the rotating handle (23), of the threaded rod (22), the outer wall of the support plate (11) is fixedly connected with the outer wall of the support frame (21), and the fixed disc (13) is arranged below the pressing disc (24).

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