CN107378811A - The producing device of abrasive particle pattern distribution emery wheel is realized in a kind of hollow out solidification in place - Google Patents

Abstract

The invention provides a kind of curing integrated producing device for realizing abrasive particle pattern distribution emery wheel of hollow out coated cloth sand, including：Rotary components, bonding agent applicator assembly, fixed thick scraper component, abrasive particle shake off component, laser engraving component and curing assembly.One-stop can solve abrasive grain placement mode planning, the coating of wheel face bonding agent spreads plant with abrasive material and bonding agent solidifies abrasive particle process in place, bonding agent thickness control is accurate, it is versatile, the preparation efficiency of brazed abrasive wheel is greatly improved to control with technology stability, can efficiently, the soldering for the realizing abrasive particle grinding wheel preparation of high quality.

Description

A grinding wheel manufacturing device for in-situ hollowing and solidification to realize abrasive grain pattern distribution

technical field

The invention belongs to the field of abrasive tool preparation, and in particular relates to a manufacturing device for a grinding wheel which realizes pattern distribution of abrasive grains through the integration of hollow coating, cloth and sand solidification.

Background technique

Due to the excellent physical and mechanical properties of abrasive grains such as high hardness, abrasive grain grinding wheels have become a key means of forming parts and forming high-quality surfaces with their excellent grinding characteristics such as high efficiency, stability, and durability. They are used in metals, engineering ceramics, optical crystals, High-efficiency and precision grinding of semiconductors and natural rocks, cemented carbide, optical crystals, engineering ceramics, aerospace titanium alloys and other materials play an irreplaceable role as a pillar.

Since the grinding technology actually achieves the overall removal of the workpiece material through the removal of a small amount of material by numerous abrasives solidified on the surface of the grinding wheel, the distribution of abrasive particles on the surface of the grinding wheel has a great impact on the performance of the grinding wheel. For a long time, people have been working hard on how to make abrasives or micro-abrasive particles distributed on the surface of the grinding wheel in a certain way, so as to ensure that the abrasive particles can evenly bear the cutting load, thereby effectively improving the grinding performance of the abrasive particles, such as China Utility Model Patent Publication No. CN1528565A discloses a pattern-optimized abrasive preparation technology based on shell-membrane cloth, and Chinese Utility Model Patent CN101073882 discloses a three-dimensional multi-layer controllable and optimally arranged abrasive preparation method for electroplating tools, etc. These methods have made breakthroughs in the implementation of the arrangement of abrasive grains in the manufacture of abrasive grain pattern arrangement grinding wheels from different aspects, but the tools produced are still far from the expected design purpose. The reason is that most of the existing methods only focus on the arrangement of abrasive grains, while ignoring another important issue of high-performance grinding wheels——the accuracy of the grinding wheel profile. The high precision of the grinding wheel profile is the basic guarantee for high precision workpiece forming, but it is greatly affected by the thickness of the bond layer. CN105965408A discloses a method for manufacturing a single-layer abrasive wheel, the core point of which is to indirectly control the uniform coating of the bonding agent through a runout compensation mechanism to solve the problem of abrasive grain contours, but the equipment is complicated and the operation is cumbersome. On the other hand, the existing screens, orifice plates, and template methods are mainly made of metals, ceramics, etc., which are costly and difficult to process, with few patterns and patterns, and only serve to limit the position of dynamic abrasive particles, and do not Did not play a role in controlling the thickness of the binder.

Contents of the invention

The purpose of the present invention is to overcome the defects of the prior art, and provide a manufacturing device for a grinding wheel that integrates hollow coating, cloth, sand and solidification to realize the pattern distribution of abrasive grains.

Concrete technical scheme of the present invention is as follows:

A manufacturing device for hollow coating, cloth, sand and solidification integrated to realize the distribution of abrasive grain patterns, including:

A rotating assembly, including a rotating shaft, a driving motor and a rotating motion control unit, the rotating shaft drives the grinding wheel base to rotate perpendicular to the horizontal plane under the drive of the driving motor, and the rotating motion control unit is electrically connected to the driving motor to control the driving motor in different Speed operation;

A bonding agent coating assembly, including a bonding agent pressure storage unit, a conduit, a spraying control unit and a nozzle electrically connected to each other, the bonding agent pressure storage unit is connected to the nozzle through a conduit, and the spraying control unit controls the bonding agent to flow out of the nozzle ;

A certain thickness scraper assembly, including a scraper, a slider, an optical shaft, a spring and a support, the slider and the optical shaft are slidably connected, the spring is arranged between the support and the slider, and the spring rebounds under pressure Make the free end of the scraper fixed on the slide block close to the temporary covering layer;

An abrasive particle shake-off assembly includes a material trough, a vibration unit and a vibration control unit. The material trough is arranged on the vibration unit to hold abrasive grains, and the outlet of the material trough is located above the grinding wheel base. The vibration control unit Electrically connected with the vibration unit;

An engraving assembly, including an up and down drive slide, an axial drive slide, a laser head and an engraving control unit, the laser head realizes up and down movement and axial movement under the joint action of the up and down drive slide and the axial drive slide Linkage, coupled with the rotating movement of the grinding wheel, enables the laser emitted by the laser head to realize the engraving and cutting of the hollow pattern of the temporary covering layer;

A curing component is used to directly cure the bonding agent in place, which includes a support seat, an ultraviolet light emitter and a curing control unit; the ultraviolet light emitter is arranged on the side of the support seat facing the grinding wheel, so The above-mentioned curing control unit controls the opening or closing of the ultraviolet light emitter;

and a control system component, electrically connected with the above-mentioned rotary motion control unit, spraying control unit, vibration control unit, engraving control unit and curing control unit.

In a preferred embodiment: it also includes an automatic counting assembly of abrasive grain concentration, in order to control the spilling effect of abrasive grains, it includes a camera for photographing the bonding agent surface at different positions of the rotating grinding wheel substrate and a camera with the The camera is electrically connected to the image analysis unit, and the data processing control component is electrically connected to the image analysis unit.

The beneficial effects of the present invention are:

1) The hollowing process of the temporary covering layer and its pattern is low in cost and fast in speed. 2) The in-situ engraving of the surface pattern of the abrasive grains is directly realized, with high efficiency and free replacement. 3) The thickness of the bonding agent is controlled according to the thickness of the temporary covering layer, which fundamentally avoids the inconsistency of the bonding agent coating layer thickness caused by the inconsistency of manufacturing, preparation and use of assembly standards, and effectively improves the thickness of the bonding agent on the surface of the grinding wheel. Uniformity, greatly improving the contour accuracy of the grinding wheel. 4) On-site direct curing, which solves the problem of low efficiency and repetitive labor caused by changing stations. The bonding process has strong versatility, which greatly improves the preparation efficiency and process stability control of brazed grinding wheels, and can realize the brazing preparation of abrasive grain grinding wheels with high efficiency and high quality.

Description of drawings

Fig. 1 is one of structural representations of the manufacturing device of single-layer abrasive grain grinding wheel in the preferred embodiment of the present invention;

Fig. 2 is the second structural representation of the manufacturing device of single-layer abrasive grain grinding wheel in the preferred embodiment of the present invention;

Fig. 3 is a view in direction A of Fig. 2;

Fig. 4 is the third structural representation of the manufacturing device of the single-layer abrasive wheel in the preferred embodiment of the present invention;

Fig. 5 is a schematic cross-sectional view of a temporary covering layer in a preferred embodiment of the present invention;

Fig. 6 is a schematic diagram of the temporary covering layer adhered to the surface of the grinding wheel substrate in a preferred embodiment of the present invention after laser engraving and removal of hollowing;

Fig. 7 is a schematic diagram of a temporary covering layer coated with a bonding agent in a preferred embodiment of the present invention;

Fig. 8 is a schematic diagram of the grinding wheel substrate after the excess binder is removed by the scraper in the preferred embodiment of the present invention;

Fig. 9 is a schematic diagram of the uniform distribution of abrasive grains and the surface of the grinding wheel substrate in a preferred embodiment of the present invention;

Fig. 10 is a schematic diagram of a grinding wheel with a pattern of abrasive grains obtained after the bonding agent is cured in a preferred embodiment of the present invention.

detailed description

The technical solutions of the present invention will be further illustrated and described below through specific embodiments in conjunction with the accompanying drawings.

As shown in Figures 1-4, a device for manufacturing a grinding wheel with hollow coating, cloth, sand and solidification integrated to realize the distribution of abrasive grain patterns, including a base 1, a rotating assembly 2 on the base 1, and a bonding agent Coating assembly 3 , an abrasive particle shake-off assembly 4 , a certain thickness scraper assembly 5 and a control system 10 .

The rotating assembly 2 includes a rotating shaft 21, a driving motor 22 and a rotational motion control unit 23, the rotating shaft 21 drives the grinding wheel base 6 to rotate perpendicular to the horizontal plane under the drive of the driving motor 22, and the rotational motion control unit 23 is electrically connected to the driving motor 22 , to control the running speed of the grinding wheel substrate 6;

The bonding agent coating assembly 3 includes a nozzle 31, a conduit 32, a bonding agent pressure storage unit 33 and a spraying control unit 34 electrically connected to each other, the bonding agent pressure storage unit 33 is connected to the nozzle 31 through the conduit 32, and the spraying control The unit 34 controls the bonding agent pressure storage unit 33 so as to control the bonding agent 8 to flow out from the nozzle 31;

The thickness-fixed scraper assembly 5 includes a scraper 51, a slide block 52, an optical axis 53, a spring 54 and a support 55, the slide block 52 is slidably connected with the optical axis 53, and the spring 54 is arranged on the support 55 and the slide Between the blocks 52, the free end of the scraper 51 fixed on the slider 52 can be tightly attached to the temporary covering layer 7 under the action of the spring 54 being pressed and rebounded;

Abrasive particle shake-off assembly 4 includes a trough 41, a vibration unit 42 and a vibration control unit 43. The material 41 trough is arranged on the vibration unit 42 to hold abrasive grains 9, and the discharge port of the trough is located on the grinding wheel base 6, the vibration control unit 43 is electrically connected to the vibration unit 42;

The laser engraving assembly 11 includes an up and down drive slide table 11-1, an axial drive slide table 11-2, a laser head 11-3 and an engraving control unit 11-4, and an up and down drive slide table 11-1 is aligned with the axial drive slide table 11-2. Drive slide table 11-2 structure is identical, all comprises slide block 13-1, screw mandrel 13-2, slide seat 13-3 and drive motor 13-4, drive screw mandrel 13-2 of drive motor 13-4 makes slide block 13 -1 can move repeatedly on the slide seat 13-3, a laser head 11-3 is fixed on the slide block 13-1 of the axial drive slide table 11-2, and the base 13-3 of the axial drive slide table 11-2 is fixed On the slide block 13-1 of the up and down drive slide table 11-1, the base 13-3 of the up and down drive slide table 11-1 is fixed on the base 1, and the engraving control unit 11-4 is connected with the up and down drive slide table 11-1 and Axial driving slide table 11-2 driving motor 13-4 and laser head 11-3 are electrically connected, so that laser head 11-3 can Realize up and down movement and linkage along the axial direction of the grinding wheel 6, coupled with the coordinated movement of the grinding wheel 6 rotation, the laser 14 emitted from the laser head 11-3 realizes the engraving and cutting of the temporary covering layer 7 according to the abrasive grain arrangement pattern;

The curing assembly 15 includes a support base 15-1, an ultraviolet light emitter 15-2 and a curing control unit 15-3, and the ultraviolet light emitter 15-2 is electrically connected to the curing control unit 15-3 and passed through the support base 15- 1 is fixed on the base 1. And the light emitting surface of the ultraviolet light emitter 15 - 2 faces the grinding wheel 6 .

And a control system 10, electrically connected with the above-mentioned rotary motion control unit 23, spraying control unit 34, vibration control unit 43, engraving control unit 11-4 and curing control unit 15-3.

The specific method of making abrasive pattern distribution grinding wheel in situ with the above-mentioned manufacturing device is as follows:

The material of the abrasive grain 9 is preferably diamond, polycrystalline diamond, cubic boron nitride, polycrystalline cubic boron nitride, hard alloy, silicon carbide, aluminum oxide; the diameter of the abrasive grain is 1-2000um; the bonding agent 8 It is a photocurable resin, and the curing treatment of the bonding agent is to irradiate the bonding agent with ultraviolet light.

Referring to Fig. 5, the temporary covering layer 7 is preferably made of a surface material 71, a non-drying adhesive layer 72 and a base paper 73. The material of the surface material 71 includes but is not limited to: coated paper, PVC, PET, laser paper, Heat-resistant paper, polypropylene, polycarbonate, kraft paper, fluorescent paper, gold-plated paper, silver-plated paper, synthetic paper, aluminum foil paper, fragile paper, security paper, textured paper, cloth label paper, pearlescent paper, sandwich coated paper , a kind of thermal paper; the thickness of the surface material 71 is 25-500um;

The non-drying adhesive layer 72 has an adhesive, preferably but not limited to acrylic latex, or hot melt adhesive, or rubber-based latex, or solvent-based acrylic; the bottom paper 73 is a bottom coated with a silicon protective layer. Paper, preferably but not limited to glassine paper, garlic paper, kraft paper, polyester pet, coated paper, polyethylene, plastic film.

(1) Fix the grinding wheel base 6 on the rotating shaft 2; determine the thickness of the temporary covering layer 7 according to the thickness of the final bonding agent 8, and stick the temporary covering layer 7 after removing the backing paper on the grinding wheel base 6.

(2) The control system 10 drives the laser engraving system 11-4 and the rotary motion system 23 according to the abrasive particle arrangement pattern, so that the laser light 14 emitted by the laser head 11-3 drives the sliding table 11-1 up and down, and the sliding table 11-1 in the axial direction. The table 11-2 and the grinding wheel 6 rotate in a coordinated manner to engrave and cut the temporary covering layer 7, and then remove the temporary covering layer 7 in the hollowed-out area to realize the in-situ hollowing out process of the temporary covering layer 7. Hollow out the area of the grain, see Figure 6.

(3) Send a signal to the rotary motion control unit 23 by the control system 10, so that the grinding wheel substrate 6 continues to rotate; by sending a signal to the spraying control unit 34 by the control system 10, the bonding agent 7 is flowed out from the nozzle 31 and applied on the sticky surface On the temporary covering layer 7 of the grinding wheel substrate 6, see Fig. 7;

(4) Make the grinding wheel base 6 continue to rotate, use the rebound effect of the spring 54 to press the scraper 51 tightly on the temporary covering layer 7, use the rotational movement of the grinding wheel base 6 to scrape off the bonding agent that is not filled into the hollow area, The thickness of the bonding agent 8 left in the hollow is equal to the thickness of the temporary covering layer 7, so that the temporary covering layer 7 is used to realize the pattern distribution of the abrasive grains 9 and the effect of controlling the thickness of the bonding agent 8 layer, as shown in Figure 8;

(5) Make the grinding wheel base 6 continue to rotate, and the control system 10 sends a signal to the vibration control unit 43, so that the abrasive grains 9 fall evenly from the fixed position above the grinding wheel base 6, and the abrasive grains 8 are evenly scattered by the rotation of the grinding wheel base 6. On the surface of the bonding agent 8 of the grinding wheel matrix 6, see Fig. 9; the distribution and concentration of the abrasive grains 9 on the surface of the bonding agent 8 of the grinding wheel matrix 6 are realized by controlling the rotating speed of the grinding wheel matrix 6, the flow rate and the spilling time of the abrasive grains 9 control;

(6) Continue to make the grinding wheel matrix 6 rotate, and the control unit 10 starts the ultraviolet light emitter 15-2 to irradiate the bonding agent 8 through the curing control unit 15-3, so that the bonding agent 8 produces a curing effect, thereby fixing the abrasive grains 9 on the After the grinding wheel base 6, the temporary covering layer 7 is removed to form the abrasive grain pattern and arrange the grinding wheel, see FIG. 10 . It is also possible to first remove the temporary covering layer 7 and carry out curing treatment;

With further reference to Fig. 1, on the basis of the above-mentioned equipment, an abrasive particle concentration analysis assembly 12 is added to monitor the effect of the abrasive particles 7 falling on the grinding wheel substrate 6, which includes a bonding agent used to photograph different positions on the grinding wheel substrate 6 8, a camera 12-1 for abrasive grains on the surface and an image analysis and acquisition unit 12-2 electrically connected to the camera, and the control system 10 is electrically connected to the image analysis unit 12-2.

The specific method of making abrasive pattern distribution grinding wheel with the above-mentioned manufacturing device is based on the implementation method of Example 1, and further: in the above-mentioned step (5), the bonding agent 8 at different positions of the rotating grinding wheel substrate 6 can be photographed surface, image analysis is used to control the distribution and concentration of the abrasive grains 9 on the surface of the bonding agent 8 of the grinding wheel matrix 6 .

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (2)

1. A kind of 1. curing integrated producing device for realizing abrasive particle pattern distribution emery wheel of hollow out coated cloth sand, it is characterised in that：Bag Include：

   One rotary components, including a rotating shaft, a motor and a rotary motion control unit, driving of the rotating shaft in motor Lower drive grinding wheel base body rotates perpendicular to horizontal plane, and rotary motion control unit electrically connects with motor, to control driving Motor is operated with different rotating speeds；

   One bonding agent applicator assembly, including a bonding agent pressure reservoir unit, a conduit, the spray painting control list being electrically connected to each other Member and a nozzle, bonding agent pressure reservoir unit are connected with nozzle by conduit, and spray painting control unit controls bonding agent from nozzle Outflow；

   Certain thick scraper component, including a scraping blade, a sliding block, an optical axis, a spring and bearing, sliding block are slidably connected with optical axis, Spring is arranged between bearing and sliding block, enables the free end for the scraping blade being fixed on sliding block tight under spring compression rebound effect It is affixed on temporary cover layer；

   One abrasive particle shakes off component, including a hopper, a vibrations unit and a shake control unit, hopper are used on vibrations unit To contain abrasive particle, and the discharging opening of hopper is located at the top of grinding wheel base body, and shake control unit electrically connects with vibrations unit；

   One engraving component, including about one driving slide unit, an axially driving slide unit, a laser head and engraving control unit, laser Head is realized under the synergy of driving slide unit, axially driving slide unit up and down moves up and down and is axially moved linkage, is equipped with emery wheel Rotary motion so that the laser that laser head emits can realize the engraving cutting to temporary cover layer pattern hollow out；

   One curing assembly, for directly carrying out curing process to bonding agent in place, it includes a support base, a ultra violet light emitter With a solidification control unit；The ultra violet light emitter is arranged on side of the support base towards emery wheel, the solidification control unit Control ultra violet light emitter opens or closes；

   With a control system component, controlled with above-mentioned rotary motion control unit, spray painting control unit and shake control unit, engraving Unit electrical connection processed and solidification control unit.
2. A kind of 2. curing integrated making dress for realizing abrasive particle pattern distribution emery wheel of hollow out coated cloth sand as claimed in claim 1 Put, it is characterised in that：Also include the automatic counting component of a wear particle concentration, to control the unrestrained effect of abrasive particle, it includes a use With the camera and an image electrically connected with the camera on the bonding agent surface of the diverse location of the grinding wheel base body of shooting rotation Analytic unit, the data processing and control component electrically connect with the image analyzing unit.