Polishing system for removing burrs on surface of ball nut

Abstract

The utility model discloses a polishing system for removing burrs on the surface of a ball nut, which is characterized in that the polishing system comprises a vibration cleaning device which comprises a driving source and a cleaning tank driven by the driving source; the driving source comprises a driving motor controlled by a driving device, eccentric heavy blocks are respectively arranged at the upper part and the lower part of the driving motor, and when the driving motor rotates at a high speed, exciting force generated by the two eccentric heavy blocks changes along the circumferential direction in a horizontal plane; and a machine body of the driving motor generates circular motion in a horizontal plane, so that the ball nut to be cleaned, the polishing solution and the grinding material are driven to fully and mutually move in the cleaning tank. According to the polishing system for removing the burrs on the surface of the ball nut, less manpower and cost can be consumed, so that the burrs of a product can be completely removed, no residue is left in the product, and the subsequent machining positioning or assembling is not influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of deburring of ball screws, and particularly relates to a polishing system for removing burrs on the surface of ball screws. Background Art

[0002] Since ball screws are used in automotive steering systems, any slight deviation in their dimensional accuracy, product quality, and performance can affect personal safety. Therefore, although burrs on the product are small, they directly affect the product quality. However, most ball screws have threaded holes and return ball holes, and these parts are very small and difficult to remove completely.

[0003] There are various methods for removing burrs in traditional ways, such as using a steel file, sandpaper, and a grinding head for grinding. Currently, trimming knives are more commonly used, which are simple and convenient to use, do not require technical treatment, save costs, and are environmentally friendly. However, such manual deburring methods have low processing efficiency, are prone to omission, waste a lot of labor costs, and are not particularly suitable for parts with internal threaded holes because incomplete removal may affect the processing or assembly positioning of subsequent processes.

[0004] Therefore, more and more industrial intelligent devices are gradually replacing manual labor. There is a method of shot peening deburring, which has high efficiency and good results, but is not suitable for parts with internal threaded holes because sand grains or steel balls may remain in the threaded holes, causing product failure. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a polishing system for removing burrs on the surface of ball screws.

[0006] By adopting the utility model, it is possible to spend less manpower and cost to completely remove the burrs on the product without any residues remaining inside the product, which does not affect subsequent processing positioning or assembly.

[0007] In order to achieve the purpose of the utility model, the technical solution adopted is:

[0008] A polishing system for removing burrs on the surface of ball screws, comprising:

[0009] A vibration cleaning device, the vibration cleaning device comprising a drive source and a cleaning tank driven by the drive source;

[0010] A draining plate for draining the polishing liquid is arranged above the cleaning tank;

[0011] A water outlet pipe is arranged below the tank body of the cleaning tank, and the polishing liquid in the cleaning tank is emptied through the water outlet pipe;

[0012] The driving source includes a driving motor controlled by a driving device. An eccentric weight is installed above and below the driving motor respectively. When the driving motor rotates at a high speed, the exciting forces generated by the two eccentric weights change in the circumferential direction within the horizontal plane, causing the body of the driving motor to perform circular motion within the horizontal plane, thereby driving the ball screw nut to be cleaned to perform sufficient mutual motion with the polishing liquid and abrasive in the cleaning tank;

[0013] The driving device is a driving device connected to the driving motor of the driving source through a motor driving wire. A power switch for controlling the start and stop of the driving device is provided on the driving device;

[0014] A frequency modulation switch for controlling the vibration frequency of the driving motor and a display for displaying the driving value or driving time of the driving motor.

[0015] In a preferred embodiment of the present invention, the frequency modulation switch is a frequency modulation knob.

[0016] In a preferred embodiment of the present invention, the power switch includes a switch display and a button for controlling start and stop.

[0017] In a preferred embodiment of the present invention, the tank body is an annular tank body.

[0018] The beneficial effect of the present invention is as follows:

[0019] A polishing system for removing burrs on the surface of a ball screw nut of the present invention can achieve complete removal of product burrs with less manpower and cost, and no residue remains inside the product, without affecting subsequent processing positioning or assembly. Description of the Drawings

[0020] Figure 1 It is a structural schematic diagram of the present invention. Detailed Embodiment

[0021] To make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below through the drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of the present invention. In addition, in the following structures, the description of well-known structures and technologies is omitted to avoid unnecessarily confusing the concept of the present invention.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description. It does not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0023] As Figure 1 shown, a polishing system for removing burrs on the surface of a ball screw nut includes a vibration cleaning device 100. The vibration cleaning device 100 further includes a drive source 110 that generates a vibration effect and a cleaning tank 120 that is driven by the drive source 110. The tank body of the cleaning tank 120 is annular, which can avoid cleaning dead corners.

[0024] Above the cleaning tank 120, there is a draining plate 130 for draining the polishing liquid. The draining plate is a grid plate facing the inside of the tank body of the cleaning tank. The aperture size of the grid plate should be smaller than the size of the ball screw nut.

[0025] Below the tank body of the cleaning tank 120, there is a water outlet pipe 140 for emptying the polishing liquid in the cleaning tank 120.

[0026] The drive source 110 further includes a drive motor 111 controlled by a drive device 200. The drive device 200 is a drive device connected to the drive motor 111 of the drive source 110 through a motor drive wire 210. On the drive device 200, there is a power switch 220 for controlling the start and stop of the drive device 200. The power switch 220 includes a switch display 221 and a button 222 for controlling start and stop.

[0027] A frequency modulation switch 230 for controlling the vibration frequency of the drive motor 111 and a display 240 for displaying the drive value of the drive motor or a display 250 for displaying the drive time. The frequency modulation switch 230 is a frequency modulation knob, which is more convenient to operate.

[0028] Above and below the drive motor 111, there are eccentric weights 112 respectively. When the drive motor 111 rotates at a high speed, the exciting forces generated by the two eccentric weights 112 change in the circumferential direction in the horizontal plane, causing the body of the drive motor 111 to perform a circumferential motion in the horizontal plane, thereby driving the ball screw nut 1 to be cleaned, the polishing liquid 2, and the abrasive 3 to perform sufficient mutual motion in the cleaning tank 120;

[0029] A polishing method for a polishing system for removing burrs on the surface of a ball screw nut;

[0030] First step, put the polishing liquid, abrasive, and ball screw nut into the tank body of the cleaning tank;

[0031] Second step, adopt the vibration method, adjust different currents and vibration frequencies, so that the abrasive and ball screw nut in the equipment continuously rub against each other under the lubrication of the polishing liquid, achieving the effect of removing burrs on the surface of the ball screw nut and improving the surface roughness of the product;

[0032] Among them, the addition amount of the ball screw nut is such that the weight of the ball screw nut is not more than 40% of the total weight of the abrasive and the ball screw nut.

[0033] The abrasive is an abrasive with a size range of 6 mm - 15 mm. In the embodiment, it is a rhombic white fused alumina abrasive or a round white fused alumina abrasive.

[0034] Adopt rhombic and round white fused alumina abrasives of specified sizes to ensure that burrs at each key part of the ball screw nut can be effectively removed. By regularly screening, abrasives smaller than the specified size are removed, which can effectively avoid the phenomenon of abrasive clogging the threaded holes.

[0035] The addition amount of the polishing liquid reaches the standard addition amount when the height of the polishing liquid covers the ball screw nut and the abrasive.

[0036] When the concentration value of the polishing liquid exceeds the upper limit of the concentration value, it is discharged through the water outlet pipe and then new polishing liquid is added until the concentration value of the polishing liquid reaches the lower limit of the concentration value.

[0037] The concentration value range of the polishing liquid is 2% - 5%, and the concentration value of the polishing liquid is measured by an external concentration value measuring device.

[0038] Adopt a polishing liquid that is non-corrosive and pollution-free to the environment to lubricate the friction surfaces of the abrasive and the ball screw nut, and avoid bumping damage between the product or the abrasive. By setting the upper and lower limits of the concentration value, the polishing liquid is replaced and added.

[0039] Due to the above structure, the working principle of the present utility model is as follows:

[0040] 1. Before starting the machine, check whether each part is normal. If normal, turn on the power switch and the indicator light will be on;

[0041] 2. Add the abrasive, ball screw nut, and polishing liquid to the cleaning tank according to the regulations:

[0042] 3. Turn the vibration frequency modulation knob switch to "down" until it can no longer be turned;

[0043] 4. Press the button of the time controller, set the vibration time, and then turn the "start / stop" knob switch to "start"; finally, slowly adjust the "vibration frequency modulation knob" until the pointer of the drive motor current indicator points within the specified range;

[0044] 5. During the operation of the equipment, pay attention to observing the movement states of the abrasive and the product. If it is abnormal, stop the machine in time for adjustment;

[0045] 6. After the deburring time of the optical finishing is up, the equipment will stop automatically. Then turn the "vibration frequency modulation knob" to "lower" until it can no longer be turned. After the equipment stops completely, take out the product and check whether there are small particles such as abrasives in the holes;

[0046] 7. Since the abrasive will be worn during the vibration finishing process, after processing a certain amount of products, it is necessary to screen the abrasive with a filter screen and add new abrasive to the specified weight;

[0047] 8. After processing a certain amount of products, drain the cleaning liquid through the pipeline and add new cleaning liquid.

[0048] The above shows and describes the basic principles, main features and advantages of the utility model.

[0049] Those skilled in the art should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection claimed by the utility model is defined by the appended claims and their equivalents.

Claims

1. A polishing system for removing burrs on the surface of a ball screw nut, characterized in that, Comprising: A vibration cleaning device, the vibration cleaning device includes a driving source and a cleaning tank driven by the driving source; A draining plate for draining the polishing liquid is arranged above the cleaning tank; A water outlet pipe is arranged below the tank body of the cleaning tank, and the polishing liquid in the cleaning tank is emptied through the water outlet pipe; The driving source includes a driving motor controlled by a driving device, and an eccentric weight is installed above and below the driving motor respectively. When the driving motor rotates at a high speed, the exciting forces generated by the two eccentric blocks change in the circumferential direction in the horizontal plane, causing the body of the driving motor to perform a circumferential movement in the horizontal plane, thereby driving the ball screw nut to be cleaned to perform sufficient mutual movement with the polishing liquid and abrasive in the cleaning tank; The driving device is a driving device connected to the driving motor of the driving source through a motor driving wire, and a power switch for controlling the start and stop of the driving device is arranged on the driving device; A frequency modulation switch for controlling the vibration frequency of the driving motor and a display for displaying the driving value or driving time of the driving motor.

2. The polishing system for removing burrs on the surface of a ball screw nut according to claim 1, wherein, The frequency modulation switch is a frequency modulation knob.

3. A polishing system for removing burrs on the surface of a ball screw nut according to claim 1, characterized in that, The power switch includes a switch display and a button for controlling start and stop.

4. A polishing system for removing burrs on the surface of a ball screw nut according to claim 1, characterized in that, The tank body is an annular tank body.

5. A polishing system for removing burrs on the surface of a ball screw nut as described in claim 1, characterized in that, The draining plate is a grid plate facing the inside of the cleaning tank of the cleaning tank, and the aperture size of the grid plate is smaller than the size of the ball screw nut.

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