A composite process micro-edge grinding wheel processing vacuum brazing device and method

Abstract

The present invention discloses a vacuum brazing device and method for processing micro-blade grinding wheels through a composite process, in the field of brazing, comprising: an external shell fixedly mounted on the outside of a vacuum brazing machine, a motor further provided on the outside of the external shell, a connector fixedly provided on the output end of the motor, the motor rotates the grinding wheel through the connector, a brazing material smearing unit provided on the side wall of the external shell, the brazing material smearing unit being used to evenly smear the brazing material on the outer ring surface of the grinding wheel, and the present invention simultaneously starts the brazing material conveying unit and the brazing material smearing unit through the electric motor, which can automatically coat the cutting surface of the outer ring surface of the grinding wheel with brazing material, can replace manual coating, greatly improves the efficiency of coating the outer ring surface of the grinding wheel with brazing material, is more suitable for vacuum brazing treatment of batches of micro-blade grinding wheels, and at the same time, under the action of the brazing material auxiliary adding unit, can also improve the stability of brazing material conveying.

Description

Technical Field

[0001] The present invention relates to the field of brazing, and specifically to a composite process micro-blade grinding wheel vacuum brazing device and method. Background Art

[0002] The micro-edge grinding wheel is a high-performance grinding wheel designed for ultra-precision grinding. Its core feature is that the abrasive particles (such as diamond particles) are finely arranged to form microscopic cutting edges. Through vacuum brazing technology, the diamond particles are welded to the cutting surface of the grinding wheel, thereby improving the cutting performance of the grinding wheel.

[0003] Before vacuum brazing, micro-edge grinding wheels require pre-treatment. Diamond particles are bonded to the wheel's cutting surface with a water-based adhesive. After the adhesive solidifies, excess adhesive is removed by applying a disintegrator. The wheel's cutting surface is then coated with a brush using a wet-powder coating method (a process in which brazing powder and water-based adhesive are poured into a container and evenly mixed to form a wet material). This ensures even coverage of the diamond particles and the gaps between them. The uniformity of the wet-powder coating directly impacts the vacuum brazing performance of the wheel. Therefore, manual coating is often used, but this method is inefficient and unsuitable for mass production of micro-edge grinding wheels. Summary of the Invention

[0004] The purpose of the present invention is to provide a vacuum brazing device and method for composite micro-blade grinding wheel processing to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a composite process micro-blade grinding wheel processing vacuum brazing device, comprising: an external shell fixedly mounted on the outside of a vacuum brazing machine, a motor further provided on the outside of the external shell, a connector fixedly provided on the output end of the motor, the motor rotates with the grinding wheel through the connector, the position between the motor and the external shell can be adjusted, a solder smearing unit provided on the side wall of the external shell, the solder smearing unit is used to evenly smear the solder on the outer ring surface of the grinding wheel, a solder conveying unit is further provided on the upper part of the solder smearing unit, the solder conveying unit is used to stick the solder to the outer ring surface of the grinding wheel, a motor is fixedly provided on the inside of the external shell, the motor is used to drive the solder conveying unit and the solder smearing unit to operate simultaneously;

[0006] The solder auxiliary adding unit is used to transport the solder evenly and continuously into the interior of the solder conveying unit. The solder auxiliary adding unit is arranged on the inner top of the peripheral housing.

[0007] Preferably, the solder smearing unit includes two symmetrically distributed rotating balls rotatably arranged on the outer wall of the external shell, the output end of the motor is fixedly provided with a first rotating shaft, and the first rotating shaft is vertically upward, the two rotating balls are symmetrical about the first rotating shaft, two second rotating shafts are rotatably arranged inside the external shell, and one end of the two second rotating shafts is fixed to the two rotating balls respectively, the second rotating shaft and the first rotating shaft are vertically distributed, and the center of the rotating balls on the same side coincides with the axis of the second rotating shaft, the outer surface of each second rotating shaft is fixedly sleeved with a worm gear, and the outer surface of the first rotating shaft is fixedly sleeved with a worm gear engaged with the worm gear transmission, a third rotating shaft is provided at the end of the rotating ball away from the second rotating shaft, and a nylon brush head is fixedly provided at the other end of the third rotating shaft, the third rotating shaft and the nylon brush head are threadedly fixed, the second rotating shaft and the third rotating shaft on the same side are obtuse angled, and the corner coincides with the rotating ball.

[0008] The cam is fixedly mounted on the first frame, and the cam is secured to the first and second frames movable end contact sites. The cam is secured on both sides of the cam. The cam is secured on third party frames and has a ring-shaped orifice extending therefrom.

[0009] Preferably, the brake member includes a plurality of arc positioning grooves equidistantly distributed around the outer surface of the third rotating shaft, a second sleeve is fixedly provided on the outer wall of the rotating ball, and the axis of the second sleeve is perpendicular to the axis of the third rotating shaft, a second sliding disk is slidingly assembled inside the second sleeve, a dome brake rod is fixedly provided at one end of the second sliding disk close to the third rotating shaft, and the dome top head of the dome brake rod is movably mounted inside the arc positioning groove, and a second spring is fixedly provided between the end of the second sliding disk away from the dome brake rod and the second sleeve.

[0010] Preferably, the solder delivery unit includes a sleeve fixedly mounted inside the external housing, the sleeve is located above the worm, and the axis of the sleeve is perpendicular to the axis of the first rotating shaft, the interior of the sleeve is rotatably equipped with a spiral blade shaft, a bevel gear is fixedly sleeved between the end of the sleeve close to the first rotating shaft and the outer surface of the first rotating shaft, and the two bevel gears are movably engaged, and a butt joint is threadedly assembled on the end of the sleeve away from the bevel gear, and the inner diameter of the butt joint is equal to the minimum inner diameter of the sleeve. The ends of the butt joints are fixedly connected to each other and are provided with a feeding head, and the other end of the feeding head is provided with a straight groove, the straight groove is sleeved on the outer ring part of the grinding wheel, and the width of the straight groove is greater than the thickness of the grinding wheel, a barrel is placed inside the external shell, and the bottom of the barrel is fixedly connected to the outer surface of the sleeve, and the outer surface of the sleeve or the butt joint is also equipped with a manual opening and closing valve, the manual opening and closing valve does not contact the end of the spiral blade shaft, and the manual opening and closing valve is a manually opened and closed butterfly valve or a ball valve.

[0011] Preferably, the solder auxiliary adding unit includes a hinged frame plate distributed above the sleeve, and the hinged frame plate is fixed inside the external shell, the hinged frame plate is located on the side of the first rotating shaft away from the barrel, and two striking plates are hingedly provided at one end of the hinged frame plate close to the barrel, and the other ends of the two striking plates are symmetrically unfolded, the first rotating shaft and the barrel are between the two striking plates, and a first spring is fixedly provided between an end surface of each striking plate away from the first rotating shaft and the hinged frame plate, and a toggle component is also provided between the top of the first rotating shaft and the two striking plates, the toggle component is used to slowly push the striking plate away and then release it instantly, so that the end of the striking plate strikes the surface of the barrel under the elastic pressure of the first spring.

[0012] Preferably, the shifting component includes a cam fixedly mounted on the top of the first rotating shaft, and each striking plate is fixedly provided with a protrusion at one end close to the cam, and the end of the protrusion is in sliding contact with the outer surface of the cam.

[0013] Preferably, the cam includes a disc portion and a crescent portion fixed on the periphery of the disc portion.

[0014] Preferably, the barrel is made of hard plastic, and a circular slot for accommodating the barrel is provided on the top of the external shell. The barrel is also cylindrical, and the outer diameter of the barrel is smaller than the inner diameter of the circular slot. A flexible corrugated plastic film is installed between the inner wall of the circular slot and the outer surface of the barrel with glue.

[0015] A method for processing a vacuum brazing device using a composite process micro-blade grinding wheel, the method comprising the following steps:

[0016] S1. Place the grinding wheel between two nylon brush heads so that the outer surface of the grinding wheel can contact the brushes of the two nylon brush heads. At the same time, let the straight groove cover the outer surface of the grinding wheel. Keep the grinding wheel rotating in this state.

[0017] S2. Start the motor. Drive the spiral blade shaft with the first rotating shaft to deliver the wet solder toward the feeding head. The solder adheres to the outer surface of the grinding wheel through the straight groove. Under the action of the worm and worm gear, the two nylon brush heads rotate simultaneously to evenly spread the solder adhered to the outer surface of the grinding wheel.

[0018] S3. After the brazing material is evenly applied to the outer ring of the grinding wheel, the grinding wheel is placed in the vacuum brazing machine for vacuum high-temperature brazing treatment.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] In the present invention, the solder conveying unit and the solder coating unit are started simultaneously by an electric motor, and the cutting surface of the outer ring surface of the grinding wheel can be automatically coated with solder, which can replace manual coating, greatly improving the efficiency of coating the outer ring surface of the grinding wheel with solder, and is more suitable for vacuum brazing of batches of micro-edge grinding wheels. At the same time, under the action of the solder auxiliary adding unit, the stability of solder conveying can also be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the internal structure of the external device housing of the present invention;

[0023] Figure 3 This is a schematic diagram of the push rod and oblique arc plate structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the manual opening and closing valve of the present invention;

[0025] Figure 5 This is a schematic diagram of the casing and butt-joint pipe structure of the present invention;

[0026] Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle;

[0027] Figure 7 This is a schematic diagram of the internal structure of the rotating ball of the present invention;

[0028] Figure 8 For the present invention Figure 7 Enlarged view of point B in the middle.

[0029] In the figure: 1. External housing; 2. Motor; 3. First rotating shaft; 4. Second rotating shaft; 5. Worm; 6. Worm gear; 7. Rotating ball; 8. Third rotating shaft; 9. Nylon brush head; 10. Articulated frame; 11. Strike plate; 12. First spring; 13. Bump; 14. Cam; 15. Bevel gear; 16. Sleeve; 17. Butt joint; 18. Barrel; 19. Spiral blade shaft; 20. Feed head; 21. Straight groove; 22. Movable ratchet; 23. First sleeve; 24. First sliding plate; 25. Tension spring; 26. Push rod; 27. Ratchet plate; 28. Oblique arc plate; 29. ​​Second sleeve; 30. Second sliding plate; 31. Second spring; 32. Dome brake lever; 33. Arc positioning groove; 34. Manual opening and closing valve. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0031] Example 1: Please refer to Figure 1-Figure 5 The figure shows a composite process micro-blade grinding wheel processing vacuum brazing device, comprising: an external shell 1 fixedly mounted on the outside of the vacuum brazing machine, a motor is further provided on the outside of the external shell 1, a connector is fixedly provided on the output end of the motor, the motor rotates with the grinding wheel through the connector, the position between the motor and the external shell 1 can be adjusted, a solder smearing unit is provided on the side wall of the external shell 1, the solder smearing unit is used to evenly smear the solder on the outer ring surface of the grinding wheel, a solder conveying unit is further provided on the upper part of the solder smearing unit, the solder conveying unit is used to stick the solder to the outer ring surface of the grinding wheel, and a motor 2 is fixedly provided inside the external shell 1, the motor 2 is used to drive the solder conveying unit and the solder smearing unit to operate simultaneously;

[0032] The solder auxiliary adding unit is used to transport the solder evenly and continuously to the interior of the solder conveying unit. The solder auxiliary adding unit is arranged on the inner top of the peripheral housing 1.

[0033] The solder coating unit includes two symmetrically distributed rotating balls 7 rotatably arranged on the outer wall of the external housing 1, a first rotating shaft 3 is fixedly arranged on the output end of the motor 2, and the first rotating shaft 3 is vertically upward, and the two rotating balls 7 are symmetrical with the first rotating shaft 3. Two second rotating shafts 4 are rotatably arranged inside the external housing 1, and one end of the two second rotating shafts 4 is fixed to the two rotating balls 7 respectively, the second rotating shaft 4 and the first rotating shaft 3 are vertically distributed, and the center of the rotating balls 7 on the same side coincides with the axis of the second rotating shaft 4, the outer surface of each second rotating shaft 4 is fixed with a worm gear 6, and the outer surface of the first rotating shaft 3 is fixed with a gear that meshes with the worm gear 6 The worm 5 is combined, and a third rotating shaft 8 is provided at one end of the rotating ball 7 away from the second rotating shaft 4, and a nylon brush head 9 is fixedly provided at the other end of the third rotating shaft 8. The third rotating shaft 8 and the nylon brush head 9 are threadedly fixed. The second rotating shaft 4 and the third rotating shaft 8 located on the same side are obtuse-angled, and the corner coincides with the rotating ball 7. When the motor 2 drives the worm 5 to rotate through the first rotating shaft 3, the engagement of the worm 5 and the worm wheel 6 can make the two second rotating shafts 4 rotate synchronously in opposite directions with the third rotating shaft 8 through the rotating ball 7, and the grinding wheel is located between the two nylon brush heads 9, and the solder on the outer ring surface of the grinding wheel is evenly smeared by the brush of the nylon brush head 9.

[0034] The solder conveying unit includes a sleeve 16 fixedly mounted inside the external shell 1, the sleeve 16 is located above the worm 5, and the axis of the sleeve 16 is perpendicular to the axis of the first rotating shaft 3, and the internal rotation of the sleeve 16 is equipped with a spiral blade shaft 19, and a bevel gear 15 is fixedly sleeved between the end of the sleeve 16 close to the first rotating shaft 3 and the outer surface of the first rotating shaft 3, and the two bevel gears 15 are movably engaged, and the end of the sleeve 16 away from the bevel gear 15 is threadedly equipped with a docking pipe 17, the inner diameter of the docking pipe 17 is consistent with the minimum inner diameter of the sleeve 16, and the end of the docking pipe 17 away from the bevel gear 15 is fixedly connected to a feeding head 20, and the other end of the feeding head 20 is provided with a straight groove 21, which is sleeved on the outer ring part of the grinding wheel, and the width of the straight groove 21 is greater than the thickness of the grinding wheel. A barrel 18 is placed inside the external shell 1, and the bottom of the barrel 18 is aligned with the outer surface of the sleeve 16. The surfaces are fixedly connected, and the outer surface of the sleeve 16 or the docking pipe 17 is also equipped with a manual opening and closing valve 34. The manual opening and closing valve 34 does not contact the end of the spiral blade shaft 19, and the manual opening and closing valve 34 is a manually opened and closed butterfly valve or ball valve. The viscous solder is added to the interior of the barrel 18 in advance, and the solder will gradually flow into the interior of the sleeve 16 under the action of gravity. Then, under the action of the rotating spiral blade shaft 19, the solder inside the sleeve 16 is transported toward the feed head 20, and through the gap between the straight groove 21 and the grinding wheel, the solder is adhered to the outer ring surface of the grinding wheel. The opening and closing of the manual opening and closing valve 34 can control whether the solder is allowed to flow out of the straight groove 21, and the outer diameter of the bevel gear 15 distributed on the outer surface of the first rotating shaft 3 is larger than the outer diameter of the bevel gear 15 distributed at the end of the spiral blade shaft 19, so that one rotation of the first rotating shaft 3 can make the spiral blade shaft 19 rotate multiple times.

[0035] Example 2: Please refer to Figure 4-Figure 6 This embodiment is a further explanation of the above embodiment. The solder auxiliary adding unit includes a hinged frame plate 10 distributed above the sleeve 16, and the hinged frame plate 10 is fixed inside the external housing 1. The hinged frame plate 10 is located on the side of the first rotating shaft 3 away from the barrel 18. The end of the hinged frame plate 10 close to the barrel 18 is hingedly provided with two striking plates 11, and the other ends of the two striking plates 11 are symmetrically unfolded. The first rotating shaft 3 and the barrel 18 are between the two striking plates 11. The end surface of each striking plate 11 away from the first rotating shaft 3 is connected to the hinged frame plate 10. A first spring 12 is fixedly arranged between the two shafts, and a toggle component is also provided between the top of the first shaft 3 and the two striking plates 11. The toggle component is used to slowly push the striking plates 11 away and then release them instantly, so that the ends of the striking plates 11 strike the surface of the barrel 18 under the elastic pressure of the first spring 12. When the first shaft 3 rotates, the striking plates 11 can be touched by the toggle component, so that the striking plates 11 can frequently strike the surface of the barrel 18. Through the transmission of vibration caused by the striking, the solder inside the barrel 18 can flow densely into the interior of the sleeve 16.

[0036] The toggle component includes a cam 14 fixedly mounted on the top of the first rotating shaft 3. A protrusion 13 is fixedly provided on one end of each striking plate 11 close to the cam 14. The end of the protrusion 13 is in sliding contact with the outer surface of the cam 14. When the cam 14 is attached to the Figure 6 When the lever 10 is rotated counterclockwise in the middle state, the two protrusions 13 can be pushed apart in sequence, and then the striking plate 11 is instantly reset under the action of the first spring 12.

[0037] The cam 14 includes a disc portion and a crescent portion fixed to the periphery of the disc portion. That is, after the cam 14 pushes the bump 13 to the maximum distance through the crescent portion, the bump 13 will separate from the tip of the crescent portion as the disc portion continues to rotate.

[0038] The barrel 18 is made of thin-walled hard plastic. When the end of the striking plate 11 hits the surface of the barrel 18, the barrel 18 can be slightly deformed, which is more convenient for the transmission of vibration force. A circular groove is provided on the top of the external shell 1 for accommodating the barrel 18. The barrel 18 is also cylindrical, and the outer diameter of the barrel 18 is smaller than the inner diameter of the circular groove. A flexible corrugated plastic film is installed between the inner wall of the circular groove and the outer surface of the barrel 18 with glue. The flexible corrugated plastic film will not affect the deformation of the barrel 18, and can also prevent the solder splashed from the upper end of the barrel 18 from entering the interior of the external shell 1 through the circular groove.

[0039] Example 3: Please refer to Figure 7 and Figure 8, this embodiment is a further explanation of the first embodiment, the third rotating shaft 8 located on the same side is rotatably inserted into the interior of the rotating ball 7, and a rotating component is further provided inside the rotating ball 7, the rotating component includes a first sleeve 23 fixed inside the rotating ball 7, and the axis of the first sleeve 23 coincides with the radius of the rotating ball 7, the first sleeve 23 is slidably equipped with a first sliding plate 24, and the end of the first sliding plate 24 away from the center of the rotating ball 7 is fixedly provided with a push rod 26 that slides through the first sleeve 23, a tension spring 25 is further fixedly provided between the end of the first sliding plate 24 away from the center of the rotating ball 7 and the first sleeve 23, and the tension spring 25 is distributed on the outside of the push rod 26, the end of the third rotating shaft 8 extending into the interior of the rotating ball 7 is fixedly provided with a movable ratchet 22, the outer wall of the first sliding plate 24 is fixedly provided with a ratchet plate 27, and the ratchet plate 27 is fixedly provided on the outer wall of the ratchet plate 27. The tooth plate 27 is movably engaged with the movable ratchet 22, and the ratchet plate 27 and the first sleeve 23 are also slidably assembled. An oblique arc plate 28 is provided on the periphery of each rotating ball 7, and the oblique arc plate 28 is fixed to the outside of the external housing 1. A brake is also provided between the outer wall of the third rotating shaft 8 and the rotating ball 7. When the rotating ball 7 rotates with the push rod 26, the end of the push rod 26 will first contact the outer wall of the oblique arc plate 28, and the oblique arc plate 28 will gradually press the push rod 26, allowing the push rod 26 to move with the first sliding plate 24 toward the center of the rotating ball 7. During the movement, the ratchet plate 27 and the movable ratchet 22 will engage and rotate. After the push rod 26 is separated from the oblique arc plate 28, when the first sliding plate 24 and the ratchet plate 27 are reset under the action of the tension spring 25, the ratchet plate 27 will not engage and rotate with the movable ratchet 22.

[0040] The brake member includes a plurality of arc positioning grooves 33 equidistantly distributed on the outer surface of the third rotating shaft 8. A second sleeve 29 is fixedly provided on the outer wall of the rotating ball 7, and the axis of the second sleeve 29 is perpendicular to the axis of the third rotating shaft 8. A second sliding disc 30 is slidably mounted inside the second sleeve 29. A dome brake rod 32 is fixedly provided at one end of the second sliding disc 30 close to the third rotating shaft 8, and the dome top of the dome brake rod 32 is movably mounted inside the arc positioning groove 33. The second sliding disc 30 is away from the dome brake rod 3 2 and the second sleeve 29 is fixedly provided with a second spring 31. The pressure exerted by the second spring 31 allows the end of the dome brake rod 32 to be embedded in the interior of the arc positioning groove 33, which can temporarily fix the third rotating shaft 8. When a torsional force is generated between the third rotating shaft 8 and the rotating ball 7, the third rotating shaft 8 will push the dome top portion of the dome brake rod 32 through the arc positioning groove 33, so that the dome top portion of the dome brake rod 32 is installed in the interior of another arc positioning groove 33 due to the rotation of the third rotating shaft 8.

[0041] Working principle: First, fully mix the solder and water glue, and pour the wet and viscous solder into the inside of the barrel 18 in advance. Then, assemble the grinding wheel that needs to be coated with solder through the motor and connector outside the external housing 1. Move the grinding wheel between the two nylon brush heads 9 and allow the straight groove 21 to be buckled on the outside of the grinding wheel. After the position is adjusted, keep the driving grinding wheel in a counterclockwise rotation state and start the motor 2.

[0042] When the motor 2 is just started, the manual opening and closing valve 34 is in a closed state. The staff needs to manually open the manual opening and closing valve 34. At this time, the first rotating shaft 3 drives the two rotating balls 7 to rotate synchronously with the two third rotating shafts 8 in opposite directions through the engagement of the worm 5 and the worm wheel 6, so that the brush of the nylon brush head 9 can frequently brush the outer surface of the grinding wheel to attach Figure 4 Taking the state as an example, it is preferred that the two nylon brush heads 9 rotate in the same direction at the same time, and the first rotating shaft 3 can also rotate with the spiral blade shaft 19 at the same time under the action of the two bevel gears 15, and transfer the solder flowing into the interior of the sleeve 16 toward the direction of the feed head 20, until the solder flows out from the gap between the straight groove 21 and the grinding wheel, allowing the viscous solder to adhere to the outer surface of the grinding wheel. When the nylon brush head 9 contacts the solder during the rotation process, the solder adhering to the surface of the grinding wheel can be evenly smeared on the outer ring surface of the grinding wheel. When the staff observes that the solder on the outer ring surface of the grinding wheel has been evenly smeared, the manual opening and closing valve 34 is closed at this time to stop the discharge of the solder, and then the grinding wheel is removed to complete the solder smearing work on the grinding wheel.

[0043] During the rotation of the first rotating shaft 3, the two protrusions 13 can be pushed in turn by the cam 14 and then released instantly. When the striking plate 11 is quickly reset under the action of the first spring 12 in the compressed state, the end of the striking plate 11 can knock on the surface of the barrel 18. Through the vibration transmission of the knocking, the solder inside the barrel 18 can flow densely into the inside of the sleeve 16, avoiding the situation where the space occupied by the air inside the sleeve 16 is larger than the space occupied by the solder, thereby ensuring the stability of the solder transportation.

[0044] By adding multiple coating devices to the outside of the vacuum brazing machine, it is possible to effectively replace manual labor in automatically coating the outer ring surface of the grinding wheel with brazing material. The brazing material coating is efficient and saves labor, and is more suitable for brazing processing of batches of micro-edged grinding wheels.

[0045] In this solution, every time the rotating ball 7 rotates the third rotating shaft 8 with the third rotating shaft 8, the bevel plate 28 can press the push rod 26 once and release it. During the pressing process, the ratchet plate 27 can be engaged with the movable ratchet 22, so that the third rotating shaft 8 can rotate the nylon brush head 9 with a small amplitude by a certain angle. When the bevel plate 28 is separated from the push rod 26, the push rod 26 and the ratchet plate 27 will be reset under the action of the tension spring 25. In this way, the nylon brush head 9 can also rotate during the coating process of the solder, thereby avoiding the nylon brush head 9 coating the solder at only one angle, resulting in uneven solder adhesion on the surface of the nylon brush head 9, and ultimately affecting the effect of the nylon brush head 9 coating the outer ring of the grinding wheel with solder.

[0046] Moreover, during the solder coating process, a layer of diamond particles is temporarily adhered to the outer surface of the grinding wheel. If the nylon brush head 9 can only contact the grinding wheel at one angle, the degree of wear of the bristles of the nylon brush head 9 will be different under the friction of the diamond particles, and eventually the bristles on one side of the nylon brush head 9 will be severely worn, while the bristles on the other side will be slightly worn, resulting in a short service life of the nylon brush head 9. If the nylon brush head 9 can be frequently rotated to change the contact position of the nylon brush head 9 and the grinding wheel during the solder coating process, the bristles of the nylon brush head 9 can be evenly worn, thereby improving the service life of the nylon brush head 9.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated 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 invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A composite process micro-blade grinding wheel vacuum brazing device, characterized in that: include: An external housing (1) is fixedly mounted on the outside of the vacuum brazing machine, a side wall of the external housing (1) is provided with a brazing material smearing unit, the brazing material smearing unit is used to evenly smear the brazing material on the outer ring surface of the grinding wheel, a brazing material conveying unit is further provided on the upper part of the brazing material smearing unit, the brazing material conveying unit is used to adhere the brazing material to the outer ring surface of the grinding wheel, an electric motor (2) is fixedly provided inside the external housing (1), the electric motor (2) is used to drive the brazing material conveying unit and the brazing material smearing unit to operate simultaneously; A solder auxiliary adding unit, used for uniformly and continuously transporting the solder to the interior of the solder conveying unit, wherein the solder auxiliary adding unit is arranged on the top inner side of the peripheral housing (1); The solder coating unit comprises two symmetrically distributed rotating balls (7) rotatably arranged on the outer wall of the external housing (1); a first rotating shaft (3) is fixedly arranged at the output end of the motor (2), and the first rotating shaft (3) is vertically upward; two second rotating shafts (4) are rotatably arranged inside the external housing (1), and one end of each of the two second rotating shafts (4) is fixed to the two rotating balls (7); the outer surface of each second rotating shaft (4) is fixedly sleeved with a worm gear (6), and the outer surface of the first rotating shaft (3) is fixedly sleeved with a worm (5) that is in transmission engagement with the worm gear (6); a third rotating shaft (8) is provided at one end of the rotating ball (7) away from the second rotating shaft (4), and a nylon brush head (9) is fixedly provided at the other end of the third rotating shaft (8); the second rotating shaft (4) and the third rotating shaft (8) located on the same side are at an obtuse angle; The solder delivery unit includes a sleeve (16) fixedly mounted inside the external housing (1), the sleeve (16) is located above the worm (5), and the axis of the sleeve (16) is perpendicular to the axis of the first rotating shaft (3), the internal rotation of the sleeve (16) is equipped with a spiral blade shaft (19), and a bevel gear (15) is fixedly sleeved between one end of the sleeve (16) close to the first rotating shaft (3) and the outer surface of the first rotating shaft (3), and the two bevel gears (15) are movably engaged. The end of the sleeve (16) away from the bevel gear (15) is threadedly assembled with a docking pipe (17), the end of the docking pipe (17) away from the bevel gear (15) is fixedly connected to a feed head (20), and the other end of the feed head (20) is provided with a straight groove (21), a barrel (18) is placed inside the external housing (1), and the bottom of the barrel (18) is fixedly connected to the outer surface of the sleeve (16), and the outer surface of the sleeve (16) or the docking pipe (17) is also equipped with a manual opening and closing valve (34).

2. A composite process micro-blade grinding wheel vacuum brazing device according to claim 1, characterized in that: The third rotating shaft (8) located on the same side is rotatably inserted into the interior of the rotating ball (7), and a rotating component is also provided inside the rotating ball (7), and the rotating component includes a first sleeve (23) fixed inside the rotating ball (7), and a first sliding plate (24) is slidably mounted inside the first sleeve (23), and a push rod (26) slidingly penetrating the first sleeve (23) is fixedly provided at one end of the first sliding plate (24) away from the center of the rotating ball (7), and the end of the first sliding plate (24) away from the center of the rotating ball (7) is in contact with the first A tension spring (25) is fixedly provided between the sleeves (23); a movable ratchet (22) is fixedly provided at one end of the third rotating shaft (8) extending into the interior of the rotating ball (7); a ratchet plate (27) is fixedly provided on the outer wall of the first sliding disk (24), and the ratchet plate (27) is movably engaged with the movable ratchet (22); an oblique arc plate (28) is provided on the periphery of each rotating ball (7), and the oblique arc plate (28) is fixed to the outside of the external housing (1); and a brake member is further provided between the outer wall of the third rotating shaft (8) and the rotating ball (7).

3. A composite process micro-blade grinding wheel vacuum brazing device according to claim 2, characterized in that: The brake member includes a plurality of circular arc positioning grooves (33) which are equidistantly distributed around the outer surface of the third rotating shaft (8); a second sleeve (29) is fixedly provided on the outer wall of the rotating ball (7); a second sliding disc (30) is slidably mounted inside the second sleeve (29); a dome brake rod (32) is fixedly provided at one end of the second sliding disc (30) close to the third rotating shaft (8); and a dome-shaped top end of the dome brake rod (32) is movably mounted inside the circular arc positioning groove (33); and a second spring (31) is provided between the end of the second sliding disc (30) away from the dome brake rod (32) and the second sleeve (29).

4. A composite process micro-blade grinding wheel vacuum brazing device according to claim 1, characterized in that: The solder auxiliary adding unit includes a hinged frame (10) distributed above the sleeve (16), and the hinged frame (10) is fixed inside the external shell (1), and the hinged frame (10) is hingedly provided with two striking plates (11) at one end close to the barrel (18), and the other ends of the two striking plates (11) are symmetrically unfolded, the first rotating shaft (3) and the barrel (18) are located between the two striking plates (11), and a first spring (12) is fixedly provided between an end surface of each striking plate (11) away from the first rotating shaft (3) and the hinged frame (10), and a toggle component is further provided between the top of the first rotating shaft (3) and the two striking plates (11), and the toggle component is used to slowly push the striking plate (11) away and then release it instantly, so that the end of the striking plate (11) strikes the surface of the barrel (18) under the elastic pressure of the first spring (12).

5. A composite process micro-blade grinding wheel vacuum brazing device according to claim 4, characterized in that: The shifting component comprises a cam (14) fixedly mounted on the top of the first rotating shaft (3), and a protrusion (13) is fixedly provided on one end of each striking plate (11) close to the cam (14).

6. A composite process micro-edge grinding wheel vacuum brazing device according to claim 5, characterized in that: The cam (14) comprises a disc portion and a crescent portion fixed on the periphery of the disc portion.

7. The composite process micro-edge grinding wheel vacuum brazing device according to claim 5, characterized in that: The barrel (18) is made of hard plastic.

8. A method for processing a vacuum brazing device using a composite micro-edge grinding wheel according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: S1. Place the grinding wheel between the two nylon brush heads (9) so that the outer surface of the grinding wheel can contact the brushes of the two nylon brush heads (9), and at the same time, let the straight groove (21) be sleeved on the outer surface of the grinding wheel, and keep the grinding wheel rotating in this state; S2, start the motor (2), and under the driving of the first rotating shaft (3) on the spiral blade shaft (19), the wet solder is transported toward the feeding head (20), and the solder is adhered to the outer surface of the grinding wheel through the straight groove (21), and under the action of the worm (5) and the worm wheel (6), the two nylon brush heads (9) are rotated simultaneously to evenly spread the solder adhered to the outer surface of the grinding wheel; S3. After the brazing material is evenly applied to the outer ring of the grinding wheel, the grinding wheel is placed in the vacuum brazing machine for vacuum high-temperature brazing treatment.

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