CN113059251A - Preparation method and coating equipment of fine-diameter diamond beads - Google Patents
Preparation method and coating equipment of fine-diameter diamond beads Download PDFInfo
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- CN113059251A CN113059251A CN202110276710.7A CN202110276710A CN113059251A CN 113059251 A CN113059251 A CN 113059251A CN 202110276710 A CN202110276710 A CN 202110276710A CN 113059251 A CN113059251 A CN 113059251A
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- brazing filler
- filler metal
- diamond
- circular tube
- coating
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- 238000000576 coating method Methods 0.000 title claims abstract description 128
- 239000011248 coating agent Substances 0.000 title claims abstract description 126
- 239000010432 diamond Substances 0.000 title claims abstract description 126
- 229910003460 diamond Inorganic materials 0.000 title claims abstract description 121
- 239000011324 bead Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 155
- 238000005219 brazing Methods 0.000 claims abstract description 147
- 239000000945 filler Substances 0.000 claims abstract description 139
- 230000007246 mechanism Effects 0.000 claims abstract description 123
- 239000000758 substrate Substances 0.000 claims abstract description 93
- 229910000679 solder Inorganic materials 0.000 claims abstract description 67
- 238000006243 chemical reaction Methods 0.000 claims abstract description 46
- 239000002245 particle Substances 0.000 claims abstract description 26
- 238000011084 recovery Methods 0.000 claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 claims abstract description 20
- 230000009471 action Effects 0.000 claims description 24
- 238000003825 pressing Methods 0.000 claims description 16
- 238000007790 scraping Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 14
- 239000011159 matrix material Substances 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 10
- 238000013016 damping Methods 0.000 claims description 7
- 238000009423 ventilation Methods 0.000 claims description 7
- 230000003028 elevating effect Effects 0.000 claims 6
- 239000004744 fabric Substances 0.000 abstract description 8
- 239000000463 material Substances 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 7
- 238000010276 construction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 2
- 235000011837 pasties Nutrition 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
- B23K3/0607—Solder feeding devices
- B23K3/0638—Solder feeding devices for viscous material feeding, e.g. solder paste feeding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/008—Soldering within a furnace
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
- B23K3/0607—Solder feeding devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention discloses a preparation method and coating equipment for preparing fine-diameter diamond beads, which can realize the automation of coating brazing filler metal and diamond particles in the production process of the fine-diameter diamond beads. The coating equipment comprises a brazing filler metal coating assembly, a station conversion assembly and a diamond coating assembly. The solder coating assembly includes: the device comprises a lifting template mechanism, a circular tube substrate clamping and rotating mechanism and a brazing filler metal quantitative moving and extruding mechanism; the station conversion assembly comprises a station conversion supporting plate mechanism and a lead screw sliding table module mechanism; the diamond coating assembly includes: vibrations screen cloth mechanism, screen cloth slip table mechanism, diamond recovery mechanism. The invention can produce diamond beads with different diameters, and the outer diameter ranges from 2mm to 10 mm. The brazing filler metal and the diamond particle coating equipment for preparing the small-diameter diamond beads can greatly reduce manpower and material resources in the production process of the small-diameter beads, greatly save the production cost and improve the production efficiency.
Description
Technical Field
The invention belongs to the field of manufacturing of diamond wire saw beads, and particularly relates to equipment for automatically and alternately coating brazing filler metal and diamond particles in the production process of diamond beads.
Background
At present, the diamond tool brazing technology is rapidly developed, and diamond wire saw beads have important functions in stone cutting, reinforced concrete building removal, oil exploitation platform removal and the like as a rigid-flexible diamond cutting tool. The large-diameter diamond wire saw has high noise and power consumption in the cutting process and low stone utilization rate, and the diamond wire saw develops towards brazing and diameter thinning in recent years. However, most manufacturers manually coat the brazing filler metal and the diamond, so that the production process is low in efficiency, the coating uniformity effect is poor, and the quality of the beads cannot be guaranteed.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a brazing filler metal and diamond particle coating equipment for preparing diamond beads with fine diameters, and aims to improve the production efficiency and the production quality of diamond wire saw beads.
In order to achieve the purpose, the invention adopts the technical scheme that:
a coating device for preparing fine-diameter diamond beads comprises a platform, wherein a brazing filler metal coating assembly, a diamond coating assembly and a station conversion assembly are arranged on the platform; wherein,
the station conversion assembly comprises a station conversion supporting plate and a lead screw sliding table module mechanism which can enable the station conversion supporting plate to move among different stations;
the brazing filler metal coating assembly comprises a lifting template mechanism, a circular tube substrate clamping and rotating mechanism and a brazing filler metal quantitative moving and extruding mechanism, wherein the diamond coating assembly and the brazing filler metal quantitative moving and extruding mechanism are fixed on the platform and have a certain height from the upper surface of the platform; the lifting template mechanism is fixed on the upper surface of the platform and is positioned below the brazing filler metal quantitative moving extrusion mechanism, and the circular tube substrate clamping and rotating mechanism is arranged on a station conversion supporting plate of the station conversion assembly so as to be capable of sliding along with the station conversion supporting plate to perform station conversion;
the circular tube substrate clamping and rotating mechanism comprises a left support plate and a right support plate which are vertically arranged upwards in parallel, wherein U-shaped grooves with upward openings are formed in the top ends of the left support plate and the right support plate respectively, a positioning cylinder is arranged on the side surface of each support plate respectively, the positioning cylinders are linked with a U-shaped push block, the height of the U-shaped push block is the same as that of the U-shaped grooves, the U-shaped opening direction and the movement direction are both horizontal directions, and the U-shaped push block can horizontally move to the U-shaped grooves to fix the circular tube substrate; one side of the supporting plate is provided with a rotating unit which is used for enabling the circular tube matrix to rotate around the axis of the circular tube matrix;
the lifting template mechanism comprises a coating template, wherein a brazing filler metal coating area and a non-brazing filler metal coating area are arranged on the coating template at intervals, a scraping structure is embedded in the brazing filler metal coating area, and the non-brazing filler metal coating area is of a U-shaped groove structure capable of accommodating a circular tube substrate; the lifting template mechanism is provided with a high station and a low station, the high station and the low station are realized through a lifting cylinder, and the high station is parallel and level with the circular tube base bodies clamped at the top ends of the two supporting plates.
Preferably, the autorotation unit of the circular tube substrate clamping and rotating mechanism comprises an air cylinder clamp chuck arranged on the side surface of the supporting plate, the air cylinder clamp chuck is arranged on an air cylinder clamp front bearing support, and the air cylinder clamp front bearing support is fixed with a shaft of the driven gear, so that the rotation of the driven gear can drive the air cylinder clamp chuck to rotate, and further drive the circular tube substrate to rotate; the driven gear is engaged with the driving gear, and the driving gear is driven by a circular tube matrix rotating motor.
Preferably, the brazing filler metal quantitative movement extrusion mechanism comprises a brazing filler metal needle cylinder, the brazing filler metal needle cylinder is arranged on the brazing filler metal sliding table movement mechanism and can move left and right along the brazing filler metal sliding table movement mechanism, the brazing filler metal needle cylinder is connected with an air pressure control quantitative extruder through a brazing filler metal needle cylinder vent pipe, and the brazing filler metal sliding table movement mechanism is linked with a sliding table driving motor; and a pressing cylinder is arranged beside the brazing filler metal needle cylinder and is connected with a ventilation electromagnetic valve through a pressing cylinder ventilation pipe.
Preferably, the diamond coating assembly comprises a screen slide mechanism, a vibrating screen mechanism, and a diamond recovery mechanism, wherein,
the vibrating screen mechanism comprises a screen sliding table motor, a screw rod and a sliding block, wherein the screw rod and the sliding block are fixed with an output shaft of the screen sliding table motor; the vibrating screen mechanism is connected to the screw rod sliding block and can move left and right along the screw rod; the diamond recovery mechanism is positioned below the vibrating screen mechanism;
the vibrating screen mechanism comprises an upper layer structure and a lower layer structure, and the upper layer structure comprises a vibrating screen support plate and a vibrating screen upper support; the upper bracket of the vibrating screen is square, a round opening is arranged at the center, one end of the supporting plate of the vibrating screen is fixed with one side of the upper bracket of the vibrating screen, and the other end is connected with a screw rod; the lower layer structure is provided with units capable of moving in the X-axis direction and the Y-axis direction.
Preferably, the lower layer structure is: the center is equipped with the circular frame of fixed screen cloth, and it is located the circular open-ended of superstructure under, and Y direction sliding support is established respectively to both sides around the circular frame, and Y direction sliding support sets up on the slip polished rod through sharp slide bearing slidable, and the both ends of slip polished rod are connected with X direction vibrations motor sliding support and X direction sliding support respectively.
And linear sliding bearings are respectively arranged above the middle parts of the X-direction vibrating motor sliding support and the X-direction sliding support and are respectively arranged on the polished rods at the bottom of the upper support of the vibrating screen in a sliding manner.
Preferably, a damping spring is sleeved on the polish rod between the sliding support and the sliding support of the X-direction vibration motor or the sliding support in the X direction respectively; and a damping spring is also arranged on the polish rod at the bottom of the upper bracket of the vibrating screen.
Preferably, the lifting template mechanism comprises a lifting cylinder, a lifting brazing filler metal coating template and a brazing filler metal scraping blade, wherein a push rod of the lifting cylinder and the lifting brazing filler metal coating template are assembled into a whole, and the brazing filler metal scraping blade is embedded and fixed in the lifting brazing filler metal coating template.
The invention also provides a preparation method of the fine-diameter diamond bead, which adopts the coating equipment and comprises the following steps:
1) placing a circular tube substrate for preparing the diamond beads in a U-shaped groove of a circular tube substrate supporting plate on a left supporting plate and a right supporting plate of a circular tube substrate clamping rotating mechanism, and then positioning the air cylinder to work to enable a U-shaped push block to horizontally move to the same axis of the U-shaped groove so as to fix the circular tube substrate;
the lifting template mechanism lifts the lifting brazing filler metal coating template to a high station under the action of the lifting cylinder, so that the U-shaped groove structure of the non-brazing filler metal coating area completely accommodates the circular tube substrate,
2) the rotating unit works to enable the circular tube substrate to rotate around the axis of the circular tube substrate, and the brazing filler metal quantitative movement extrusion mechanism carries out brazing filler metal interval coating on a brazing filler metal coating area;
3) moving the circular tube substrate coated with the paste brazing filler metal at intervals to a diamond coating assembly under the action of a station conversion assembly to perform diamond coating;
4) after the brazing filler metal and the diamond particles are coated on the circular tube substrate, the whole metal circular tube is subjected to vacuum brazing, the diamond is firmly welded on the metal circular tube substrate, and the metal circular tube substrate is cut at the middle position without being coated with the brazing filler metal, so that the single thin-diameter diamond bead string can be obtained.
Preferably, in the step 1), the air pressure control quantitative extruder quantitatively extrudes the paste-shaped brazing filler metal in the needle cylinder through the action of air pressure, so that the paste-shaped brazing filler metal is adhered to the circular tube substrate.
Preferably, in the step 3), the diamonds fall down and adhere to the brazing filler metal layer under the action of the vibrating screen, and the excess diamonds which are not adhered are recovered by a diamond recovery mechanism.
According to the brazing filler metal and diamond particle coating equipment for preparing the fine-diameter diamond beads, automatic conversion of different stations is achieved through the ball screw in the station conversion assembly. The brazing filler metal is coated at equal thickness at intervals, and the design of coating diamonds at intervals improves the production efficiency of the diamond bead string and saves the labor cost in the production process.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic view of the overall construction of a brazing filler metal and diamond particle coating apparatus for manufacturing fine diameter diamond beads;
FIG. 2 is a schematic structural view of a braze coating assembly;
FIG. 3 is a schematic front view of a lift braze-coated template;
FIG. 4 is a schematic left-side view of the lifting template clamping the circular tube substrate;
FIG. 5 is a schematic view of a lifting template mechanism;
FIG. 6 is a schematic view of a circular tube substrate clamping and rotating mechanism;
FIG. 7 is a schematic view of a support frame structure for a circular tube substrate;
FIG. 8 is a schematic view of the initial configuration of the round tube;
FIG. 9 is a schematic view of the round tube in a positioned state;
FIG. 10 is a schematic view of the clamping state of the circular tube substrate;
FIG. 11 is a schematic structural view of a quantitative movement extruding mechanism for brazing filler metal;
FIG. 12 is a state view of a substrate after the substrate is coated with brazing filler metal at intervals;
fig. 13 is a schematic view of a state after the brazing filler metal coating is completed;
FIG. 14 is a schematic view of a station conversion assembly;
FIG. 15 is a schematic view of the operating state of the station conversion assembly;
FIG. 16 is a schematic view of a diamond coated assembly construction;
FIG. 17 is a schematic structural diagram of a vibrating mechanism in X and Y directions;
FIG. 18 is a schematic diagram of a diamond screen construction;
FIG. 19 is a schematic view of the screen and vibratory mechanism assembly;
FIG. 20 schematic illustration of the position of the substrate coated with diamond
FIG. 21 is a schematic view of the diamond coating assembly in operation;
FIG. 22 is a view of the substrate after the substrate has been coated with braze and diamond in spaced relation around the tube;
FIG. 23 is a schematic structural view of the positioning U-shaped push block after being pulled back;
labeled as:
1. a solder coating assembly; 2. a station conversion assembly; 3. the assembly is coated with diamond.
10. A lifting template mechanism; 11. a circular tube substrate clamping and rotating mechanism; 12. the brazing filler metal quantitatively moves the extruding mechanism;
1001. scraping solder into a blade; 1002. a non-solder-coated region; 1003. a solder coating area; 1004. a circular tube substrate positioning U-shaped groove; 1005. a lifting cylinder push rod; 1006. a lifting cylinder; 1007. lifting the brazing filler metal coating template; 1008. and scraping the gap by using brazing filler metal.
1101. A round tube substrate left and right support plates; 1102. a left positioning cylinder and a right positioning cylinder; 1103. positioning the U-shaped push block left and right; 1104. a circular tube base rotating electrical machine; 1105. a driving gear; 1106. the cylinder clamps the front bearing support; 1107. the cylinder clamps the rear bearing support; 1108. a cylinder clamp; 1109. a cylinder clamp; 1110. a driven gear; 1111. the cylinder clamp can rotate the breather valve; 1112. the cylinder clamps the breather pipe; 1113. a circular tube substrate; 1114. a U-shaped groove is formed in the circular tube substrate supporting plate; 1115. coating a brazing filler metal layer; 1116. and coating a diamond layer.
1201. A pneumatic control quantitative extruder; 1202. compressing the cylinder vent pipe; 1203. a solder syringe vent pipe; 1204. a solder sliding table moving mechanism; 1205. a pressing cylinder; 1206. compressing the cylinder push block; 1207. a brazing filler metal needle cylinder; 1208. a sliding table driving motor;
20. a station conversion supporting plate mechanism; 21. lead screw slip table module mechanism.
2001. A station conversion supporting plate; 2002. a support plate rectangular frame; 2101. a polished rod slide rail; 2102. a station conversion lead screw; 2103. a station conversion motor;
30. a screen sliding table mechanism; 31. vibrating the screen mechanism; 32. diamond recovery mechanism.
3001. A screen sliding table motor; 3101. vibrating the screen support plate; 3102. a vibrating screen upper support; 3103. the X-direction vibration motor sliding support; 3104. a sliding bracket in the X direction; 3105. a Y-direction sliding support; 3106. a linear sliding bearing; 3107. a sliding polish rod; 3108. a damping spring; 3109. an X-direction vibration motor; 3110. a Y-direction vibration motor; 3111. screening a screen; 3112. a rectangular screen blanking port; 3201. a diamond recovery box;
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
A brazing filler metal and diamond particle coating device for preparing fine-diameter diamond beads comprises a brazing filler metal coating assembly, a station switching assembly and a diamond coating assembly.
The solder coating assembly includes: the device comprises a lifting template mechanism, a circular tube substrate clamping and rotating mechanism and a brazing filler metal quantitative moving and extruding mechanism. The lifting template mechanism comprises a lifting cylinder, a lifting brazing filler metal coating template and a brazing filler metal scraping blade. The lifting cylinder push rod and the lifting brazing filler metal coating template are assembled into a whole, the brazing filler metal scraping sheet is embedded and fixed in the lifting brazing filler metal coating template, and the lifting brazing filler metal coating template can be lifted up and down under the action of the cylinder. The lifting brazing filler metal coating template is provided with a brazing filler metal coating area and a non-brazing filler metal coating area, a scraping structure is embedded below the brazing filler metal coating area, the non-brazing filler metal coating area is designed into a U-shaped groove structure, and the U-shaped groove structure can realize the positioning effect on a metal circular pipe. The lifting brazing filler metal coating template is arranged right below the brazing filler metal needle cylinder, and the lifting brazing filler metal coating template is provided with an upper station and a lower station, and is located at the upper station when working and is located at the lower station when not working. The circular tube substrate clamping and rotating mechanism comprises a left supporting plate, a right supporting plate, a left positioning U-shaped push block, a right positioning U-shaped push block and a clamping and rotating cylinder. The left support plate and the right support plate of the circular tube base body are provided with U-shaped metal grooves, the centers of circles of the U-shaped grooves and the U-shaped grooves when the lifting template is located at the upper station are located on the same horizontal plane, and the U-shaped grooves play a role in limiting the circular tube base body to move forwards and backwards when the circular tube base body rotates. Left and right positioning U-shaped push blocks are arranged at two ends of a metal round pipe base body, when the round pipe base body is in a U-shaped groove of a left support plate and a right support plate of the round pipe base body, the left and right positioning U-shaped push blocks are horizontally pushed out to limit the round pipe base body to bounce up and down during rotation, a clamping rotary cylinder is arranged at one end of the metal round pipe, one end of the round pipe base body can be clamped after the cylinder clamp is ventilated, and the cylinder clamp drives the round pipe base body to rotate at a constant speed under the action of. The quantitative brazing filler metal moving and extruding mechanism comprises a brazing filler metal sliding table moving mechanism, a pressing cylinder push block and a pneumatic control quantitative extruder. The air pressure control quantitative extruder quantitatively extrudes the pasty brazing filler metal in the needle cylinder under the action of air pressure to enable the pasty brazing filler metal to be adhered to the circular tube substrate. The brazing filler metal slipway moving mechanism is arranged above the circular tube base body, and a brazing filler metal needle cylinder and a circular tube pressing push rod are arranged on a sliding block of the slipway. The round tube pressing cylinder push block has the function of pressing the round tube substrate in the U-shaped groove of the lifting solder coating template, so that the consistency of a gap between the lower side of the round tube substrate and a scraping blade in the rotation process of the round tube substrate can be ensured, and the gap is also the thickness of a solder layer. The solder syringe extrudes the coating solder at regular intervals and in fixed quantity along the rotating circular tube matrix under the action of the solder sliding table moving mechanism 1204, and the solder paste extrusion needle opening of the solder syringe is positioned over the circular tube matrix by 0.8 mm. The brazing filler metal is placed in a needle cylinder in a paste shape and quantitatively extruded under the action of air pressure. The brazing filler metal needle cylinder only extrudes brazing filler metal in a brazing filler metal coating area to be adhered to the circular tube substrate, a target gap is formed between the lower side of the circular tube and the scraping blade under the action of the pressing cylinder pushing block, and redundant brazing filler metal is scraped by the scraping blade in the rotating process of the metal circular tube substrate, so that equal-thickness coating of brazing paste is achieved. The solder syringe does not extrude solder in the non-solder-coated area.
The station conversion assembly comprises: station conversion backup plate mechanism and lead screw slip table module mechanism. A circular tube substrate clamping and rotating mechanism is arranged on the station conversion supporting plate, and the metal circular tubes coated with brazing filler metal at intervals are arranged in U-shaped grooves of the left supporting plate and the right supporting plate of the circular tube substrate. Under the effect of lead screw slip table module, the station conversion backup pad is transferred to diamond granule coating district from brazing filler metal coating district.
The diamond coating assembly includes: vibrations screen cloth mechanism, screen cloth slip table mechanism, diamond recovery mechanism. Vibration screen cloth mechanism realizes the vibrations of screen cloth X, Y direction under the effect of vibrations motor, and the screen cloth is circular, but the region that need fall the diamond granule is the rectangle region, and length is 30mm, and the width is 3mm. The diamond recovery mechanism comprises a diamond recovery box, and the metal round tube coated with the brazing filler metal is positioned at the bottom of the screen and at the upper part of the diamond recovery box. The diamond particles in the screen mesh fall down and are adhered to the brazing filler metal layer of the circular tube substrate under the action of the vibration motor, and the diamond particles which are not adhered to the brazing filler metal layer fall into the diamond recovery box. The vibrating screen and the diamond recovery box are both arranged on a sliding table of the screen sliding table mechanism, and the whole diamond coating of the circular tube substrate is realized along with the uniform radial movement of the sliding table along the circular metal tube.
Next, a 304 stainless steel tube having an outer diameter of 2mm and a wall thickness of 0.2mm was used as a circular tube substrate, and a solder layer and a diamond particle layer were applied to the outer surface thereof. Fig. 1 is a schematic view showing the overall construction of a solder and diamond particle coating apparatus for manufacturing fine-diameter diamond beads, which includes a stage on which a solder coating assembly 1, a station changing assembly 2, and a diamond coating assembly 3 are disposed. Wherein, brazing filler metal coating assembly 1 and diamond coating assembly 3 are located the front and back side of the upper surface of platform respectively and have a height, and station conversion assembly 2 locates the below between the two. The coating of the brazing filler metal layer and the diamond layer can be realized by the circular tube matrix under the sequential action of the brazing filler metal coating assembly 1, the station conversion assembly 2 and the diamond coating assembly 3.
Fig. 2 is a schematic structural view of the solder coating assembly 1, which includes: a lifting template mechanism 10, a circular tube substrate clamping and rotating mechanism 11 and a brazing filler metal quantitative moving and extruding mechanism 12. The lifting template mechanism 10 is arranged right below a brazing filler metal needle cylinder 1207 of the brazing filler metal quantitative moving and extruding mechanism 12, and the circular tube substrate clamping and rotating mechanism 11 is arranged on the station conversion supporting plate 2001 and can perform station conversion along with sliding of the station conversion supporting plate.
Fig. 3 is a schematic front view of the lifting solder coating template, which includes a lifting solder coating template 1007, and solder coating areas and non-solder coating areas are distributed on the lifting solder coating template 1007 at intervals. Where 1002 is a non-solder coated area and 1003 is a solder coated area. The non-solder-coated area is designed into a U-shaped groove structure 1004 (figure 4), a solder wiper 1001 is arranged in the solder-coated area, and the solder wiper is embedded in a lifting solder-coated template 1007 by adopting a stainless steel plate with the thickness of 0.2 mm. As shown in fig. 5, the lifting solder coating template 1007 and the lifting cylinder push rod 1005 of the lifting cylinder 1006 are assembled together, and the lifting solder coating template can be switched between an upper station and a lower station by the action of the cylinder.
As shown in fig. 6 and 8, the circular tube substrate clamping and rotating mechanism 11 comprises a flat plate, namely a station conversion supporting plate 2001 (fig. 14), wherein a supporting plate rectangular frame 2002 is arranged in the middle of the station conversion supporting plate 2001 of the flat plate, and the supporting plate rectangular frame 2002 is used for lifting and descending a solder coating template 1007 to pass through; the left side and the right side of backup pad rectangle frame 2002 are equipped with vertical parallel arrangement's that makes progress left and right backup pad 1101 respectively, wherein, left and right backup pad 1101 top is equipped with pipe base member backup pad U type groove 1114 respectively, a positioning cylinder 1102 is established respectively to the side of every backup pad, a positioning cylinder and a U type ejector pad (left and right positioning U type ejector pad 1103) linkage, the height and the U type groove 1114 of U type ejector pad are the same, U type opening direction is the horizontal direction, the direction of motion is the horizontal direction also, when U type ejector pad horizontal migration arrives U type groove 1114, can fix the pipe base member (as shown in fig. 8 and fig. 9).
The right side of right branch fagging 1101 is equipped with cylinder clamp head 1109, and it is used for pressing from both sides the tip of tight pipe base member, and on cylinder clamp head 1109 located cylinder clamp front bearing support 1106, the cylinder pressed from both sides the axle of front bearing support 1106 and driven gear 1110 fixed to driven gear 1110's rotatory ability drives cylinder clamp head 1109 rotatory, and then drives the rotation of pipe base member. The driven gear 1110 is engaged with a drive gear 1105, and the drive gear 1105 is driven by a circular tube base rotating motor 1104.
The shaft of the driven gear 1110 is an air cylinder, the air cylinder and the circular tube substrate rotating motor 1104 are both arranged on the air cylinder clamp rear bearing support 1107, and the right end of the air cylinder is provided with an air cylinder clamp rotatable ventilation valve 1111 and an air cylinder clamp ventilation pipe 1112.
The initial state of the round tube substrate 1113 is that the round tube substrate is fallen into the round tube substrate supporting plate U-shaped groove 1114 of the round tube substrate left and right supporting plates 1101, then the left and right positioning U-shaped push blocks 1103 are pushed out under the action of the left and right positioning cylinders 1102, the actual process of the round tube substrate supporting plate is changed into that shown in FIGS. 8 to 9, the action aims to prevent the round tube substrate from jumping of a central line in the process of clamping and rotating by the cylinder clamps 1108, then the lifting solder coating template 1007 passes through the supporting plate rectangular frame 2002 and rises under the action of the lifting cylinder 1006, the lifting solder coating template 1007 is always in an upper working position in the solder coating process, when the lifting solder coating template 1007 is in the upper working position, the center of the round tube substrate positioning U-shaped groove 1004 is overlapped with the center of the round tube substrate supporting plate U-shaped groove 1114 in a same height mode, so that when the lifting solder coating template is in the upper working position, the, the actual position state is shown in fig. 1.
As shown in fig. 6 and 10, when the lifting solder coating template 1007 is held at the upper station, the cylinder clamp ventilation pipe 1112 is supplied with air, and the cylinder clamp 1109 of the cylinder clamp 1108 is clamped in a closed state, and the actual state thereof changes to fig. 6 to 10. The cylinder clamp 1108 is supported by a cylinder clamp front bearing support 1106 and a cylinder clamp rear bearing support 1107, a driven gear 1110 is assembled between the two bearing supports, a cylinder clamp rotatable vent valve 1111 is assembled at a cylinder clamp vent end, the cylinder clamp can be vented when rotating, the clamping force of the cylinder clamp on a circular tube base body is ensured, the driven gear 1110 is meshed with the driving gear 1105, and the driving gear 1105 is driven by a circular tube base body rotating motor 1104. Therefore, under the condition of driving of the driving gear 1105 and air intake of the cylinder clamp vent pipe 1112, the circular tube base body can realize uniform rotation in the circular tube base body positioning U-shaped groove 1004.
As shown in fig. 2, 3 and 11, the solder is in the form of BNi-7 solder paste, which is stored in a solder syringe 1207. The quantitative extrusion of the brazing filler metal can be realized by the air pressure output by the air pressure control quantitative extruder 1201 acting on a piston of the brazing filler metal needle cylinder 1207 through the brazing filler metal needle cylinder vent pipe 1203, and the extrusion rate and the extrusion time of the brazing filler metal can be controlled through the air pressure control quantitative extruder 1201. And the pressing air cylinder 1205 and the pressing air cylinder push block 1206 are arranged right above the circular tube base body and on the left side of the brazing filler metal needle cylinder 1207. After the pressing cylinder vent pipe 1202 is ventilated, the pressing cylinder push block 1206 is pushed out to press the rotating circular tube base body in the circular tube base body positioning U-shaped groove 1004. Under the positioning of each U-shaped groove and the action of the pressing cylinder push block 1206, the rotary circular tube substrate can ensure that the lower part of the rotary circular tube substrate is consistent with the brazing filler metal scraping seam 1008 of the metal scraping blade 1001, and in the embodiment, the seam is set to be 0.4mm, and the seam is also the thickness of a brazing filler metal layer; the gap height between the upper side of the round tube matrix and the extrusion opening of the solder syringe 1207 is kept at 0.8mm to one. The compressing cylinder 1205 and the solder syringe 1207 are both assembled on the sliding table of the sliding table moving mechanism 1204, and under the action of the sliding table driving motor 1208, the solder syringe 1207 moves leftwards along the axis direction of the circular tube to spray solder at intervals, and the compressing cylinder push block 1206 is pushed out all the time to enable the circular tube base body to be tightly attached to the circular tube base body positioning U-shaped groove 1004. In the brazing filler metal coating process, the circular tube substrate is always in a clamped and rotating state, and the brazing filler metal is not extruded out of the brazing filler metal cylinder 1207 in the non-brazing filler metal coating area 1002 and rapidly passes through the cylinder 1207; the brazing filler metal is evenly extruded when the brazing filler metal coating area is formed in the brazing filler metal needle cylinder 1207, the brazing filler metal is slowly moved in the brazing filler metal needle cylinder 1207, the extruded brazing filler metal is adhered to the circular tube base body, the outer surface of the circular tube base body can be completely coated with the brazing filler metal in the rotating process, redundant brazing filler metal is scraped by the brazing filler metal scraping blades 1001, the brazing filler metal stops being extruded when the brazing filler metal needle cylinder 1207 reaches the next non-brazing filler metal coating area 1002, the circulation is conducted all the time, and the whole circular tube base body can not be lifted until the.
As shown in FIG. 12, the thickness of the solder layer 1115 was 0.4mm, the length of the solder layer was 6mm, and beads were provided at intervals of 4mm in the state where the entire round tube substrate was coated with the solder. After the solder layer is applied at the entire interval, the solder-applying pattern plate 1007 is lifted and lowered to a level lower than the station-switching support plate 2001, and the station state thereof is shown in fig. 13. As shown in fig. 14, a station switching support plate 2001 is assembled on two polished rod slide rails 2101 by a slider and also assembled on a station switching lead screw 2102 by a lead screw nut, wherein the two polished rod slide rails 2101 and the station switching lead screw 2102 are arranged in parallel. The end of the station conversion lead screw 2102 is linked with a station conversion motor 2103, and the station conversion support plate 2001 can move left and right along a polished rod slide rail under the action of the station conversion motor 2103 to realize station conversion. Since the circular tube clamping and rotating mechanism is mounted on the upper surface of the station switching support plate 2001, the circular tube clamping and rotating mechanism can also be switched to the diamond coating assembly station along with the station switching support plate 2001. Fig. 15 is a schematic view showing a state of the moving process of the station changing support plate 2001.
Fig. 21 is a schematic diagram of the station where the station changing support plate 2001 moves to the diamond coating module. Fig. 16 illustrates the construction of a diamond coated assembly. FIG. 17 is a schematic structural diagram of a vibrating mechanism in X and Y directions; the diamond coating assembly 3 includes a screen slide mechanism 30, a vibrating screen mechanism 31, and a diamond recovery mechanism 32.
The vibrating screen mechanism 30 comprises a screen sliding table motor 3001 and a screw rod fixed with an output shaft of the screen sliding table motor 3001; the vibrating screen mechanism 31 is connected to the screw rod and can move left and right along the screw rod; the diamond recovery mechanism 32 is located below the vibrating screen mechanism 31.
Specifically, the vibrating screen mechanism 31 includes an upper and a lower layer structure, the upper layer structure being a vibrating screen support plate 3101 and a vibrating screen upper bracket 3102; the upper support 3102 of the vibrating screen is square, a round opening is arranged in the center, one end of the supporting plate 3101 of the vibrating screen is fixed with one side of the upper support 3102 of the vibrating screen, and the other end is connected with a screw rod.
The lower layer structure is as follows: centrally located is a circular frame which is located directly below the circular opening of the superstructure and which serves to secure the screen 3111 (see fig. 19). Referring to fig. 18, the screen 3111 is cylindrical with a large top and a small bottom, and a bottom plate is provided with a rectangular screen blanking port 3112.
The front and back sides of the circular frame are respectively provided with a Y-direction sliding support 3105, the Y-direction sliding support 3105 is slidably arranged on a sliding polished rod 3107 through a linear sliding bearing 3106, and the two ends of the sliding polished rod 3107 are respectively connected with an X-direction vibration motor sliding support 3103 and an X-direction sliding support 3104. The shock absorbing spring 3108 is sleeved on the polish rod between the sliding support 3105 and the sliding support 3103 of the X-direction vibration motor or the sliding support 3104 of the X-direction vibration motor.
Linear sliding bearings 3106 are provided above the middle portions of the X-direction vibrating motor sliding support 3103 and the X-direction sliding support 3104, respectively, to be slidably provided on the polished rods at the bottom of the upper support 3102 of the vibrating screen, respectively. And a damping spring is also arranged on the polished rod at the bottom of the upper support 3102 of the vibrating screen.
The X-direction vibration motor 3109 is fixedly connected to the X-direction vibration motor sliding support 3103, and the Y-direction vibration motor 3110 is fixedly connected to the Y-direction sliding support 3105. After the X-direction vibrating motor 3109 and the Y-direction vibrating motor 3110 are energized, both motors vibrate nondirectionally, and the linear sliding bearing 3106 functions to ensure that the X-direction vibrating motor sliding support 3103 and the X-direction sliding support 3104 can vibrate only in the X-axis direction and that the Y-direction sliding support 3105 can vibrate only in the Y-direction. As shown in FIG. 18, the diamond particle blanking port of the vibrating screen is designed to be a rectangular frame, the length direction of the rectangular frame is along the axial direction of the circular tube substrate, and the rectangular frame is 30mm long and 3mm wide. The rectangular frame mesh-shaped blanking port is mainly designed to prolong the blanking time of diamond particles, and the damping spring 3108 is used for reducing the vibration amplitude of the screen mesh so as to ensure that a brazing filler metal layer can be coated on the diamond particles.
As shown in fig. 20, the circular tube substrate coated with the brazing filler metal at intervals is moved to the diamond particle coating region by a circular tube clamping and rotating mechanism provided on the station changing support plate 2001. The cylindrical tube substrate is located below the rectangular screen blanking port 3112 of the screen 3111 and at the midpoint of the width, and the cylindrical tube substrate is constantly in a rotating state during the process of coating the diamond particles. As shown in fig. 20, the position of the round tube substrate coated with the diamond particles is between the screen 3111 and the diamond recovery box 3201, the diamond particles uniformly and disorderly fall under the action of the vibrating screen, the diamond particles only adhere to the outer surface of the solder paste in the solder coating area 1003, the solder layer is not coated in the non-solder coating area 1002, and therefore the diamond particles do not adhere to the diamond particles, and the non-adhered diamond particles fall into the diamond recovery box 3201. The vibrating screen mechanism is connected to the slide table of the screen slide table mechanism 31 through the vibrating screen support plate 3101, and the diamond recovery cassette 3201 of the diamond recovery mechanism 32 is also mounted on the slide table of the screen slide table mechanism 31. Under the action of the screen sliding table motor 3001, the vibrating screen and the diamond recovery box move along the axial direction of the substrate coated with the brazing filler metal layer at intervals, so that diamond particles are coated on the brazing filler metal layer on the whole substrate. Finally, as shown in fig. 23, the left and right positioning U-shaped push blocks are withdrawn, and the round tube substrate coated with the brazing filler metal and the diamond can be taken out.
Fig. 22 shows a cylindrical tube substrate coated with a brazing material and diamond particles at intervals, in which the diamond coating 1116 is in a disordered distribution. The coated round tube substrate is placed into a vacuum brazing furnace for vacuum brazing, the diamond can be firmly fixed on the metal round tube substrate in a chemical metallurgical bonding mode, and then the round tube substrate is cut from the non-brazing filler metal coating area 1002, so that the diamond beads can be obtained.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.
Claims (10)
1. A coating device for preparing fine-diameter diamond beads comprises a platform and is characterized in that a brazing filler metal coating assembly, a diamond coating assembly and a station conversion assembly are arranged on the platform; wherein,
the station conversion assembly comprises a station conversion supporting plate and a lead screw sliding table module mechanism which can enable the station conversion supporting plate to move among different stations;
the brazing filler metal coating assembly comprises a lifting template mechanism, a circular tube substrate clamping and rotating mechanism and a brazing filler metal quantitative moving and extruding mechanism, wherein the diamond coating assembly and the brazing filler metal quantitative moving and extruding mechanism are fixed on the platform and have a certain height from the upper surface of the platform; the lifting template mechanism is fixed on the upper surface of the platform and is positioned below the brazing filler metal quantitative moving extrusion mechanism, and the circular tube substrate clamping and rotating mechanism is arranged on a station conversion supporting plate of the station conversion assembly so as to be capable of sliding along with the station conversion supporting plate to perform station conversion;
the circular tube substrate clamping and rotating mechanism comprises a left support plate and a right support plate which are vertically arranged upwards in parallel, wherein U-shaped grooves with upward openings are formed in the top ends of the left support plate and the right support plate respectively, a positioning cylinder is arranged on the side surface of each support plate respectively, the positioning cylinders are linked with a U-shaped push block, the height of the U-shaped push block is the same as that of the U-shaped grooves, the U-shaped opening direction and the movement direction are both horizontal directions, and the U-shaped push block can horizontally move to the U-shaped grooves to fix the circular tube substrate; one side of the supporting plate is provided with a rotating unit which is used for enabling the circular tube matrix to rotate around the axis of the circular tube matrix;
the lifting template mechanism comprises a coating template, wherein a brazing filler metal coating area and a non-brazing filler metal coating area are arranged on the coating template at intervals, a scraping structure is embedded in the brazing filler metal coating area, and the non-brazing filler metal coating area is of a U-shaped groove structure capable of accommodating a circular tube substrate; the lifting template mechanism is provided with a high station and a low station, and the high station is flush with the circular tube base bodies clamped at the top ends of the two supporting plates.
2. The coating apparatus for manufacturing fine-diameter diamond beads according to claim 1,
the autorotation unit of the circular tube substrate clamping and rotating mechanism comprises an air cylinder clamp chuck arranged on the side surface of the supporting plate, the air cylinder clamp chuck is arranged on an air cylinder clamp front bearing support, and the air cylinder clamp front bearing support is fixed with a shaft of the driven gear, so that the rotation of the driven gear can drive the air cylinder clamp chuck to rotate, and further drive the circular tube substrate to rotate; the driven gear is engaged with the driving gear, and the driving gear is driven by a circular tube matrix rotating motor.
3. The coating apparatus for manufacturing fine-diameter diamond beads according to claim 1,
the quantitative solder moving and extruding mechanism comprises a solder needle cylinder, the solder needle cylinder is arranged on the solder sliding table moving mechanism and can move left and right along the solder sliding table moving mechanism, the solder needle cylinder is connected with an air pressure controlled quantitative extruder through a solder needle cylinder vent pipe, and the solder sliding table moving mechanism is linked with a sliding table driving motor; and a pressing cylinder is arranged beside the brazing filler metal needle cylinder and is communicated with the ventilation electromagnetic valve through a pressing cylinder ventilation pipe.
4. The coating apparatus for manufacturing fine-diameter diamond beads according to claim 1,
the diamond coating assembly comprises a screen sliding table mechanism, a vibration screen mechanism and a diamond recovery mechanism, wherein,
the vibrating screen mechanism comprises a screen sliding table motor and a screw rod sliding block fixed with an output shaft of the screen sliding table motor; the vibrating screen mechanism is connected to the screw rod sliding block and can move left and right along the screw rod sliding block; the diamond recovery mechanism is positioned below the vibrating screen mechanism;
the vibrating screen mechanism comprises an upper layer structure and a lower layer structure, and the upper layer structure comprises a vibrating screen support plate and a vibrating screen upper support; the upper bracket of the vibrating screen is square, a round opening is arranged at the center, one end of the supporting plate of the vibrating screen is fixed with one side of the upper bracket of the vibrating screen, and the other end is connected with the screw rod slide block; the lower layer structure is provided with units capable of vibrating in the X-axis direction and the Y-axis direction.
5. The coating apparatus for manufacturing fine-diameter diamond beads according to claim 4,
the lower layer structure is as follows: the center of the circular frame is provided with a fixed screen, the circular frame is positioned right below a circular opening of the upper layer structure, the front side and the rear side of the circular frame are respectively provided with a Y-direction sliding support, the Y-direction sliding support is slidably arranged on a sliding polished rod through a linear sliding bearing, and two ends of the sliding polished rod are respectively connected with an X-direction vibration motor sliding support and an X-direction sliding support;
and linear sliding bearings are respectively arranged above the middle parts of the X-direction vibrating motor sliding support and the X-direction sliding support and are respectively arranged on the polished rods at the bottom of the upper support of the vibrating screen in a sliding manner.
6. The coating apparatus for manufacturing fine diameter diamond beading according to claim 5, wherein a damping spring is respectively fitted on the polish rod between the sliding holder and the X-direction vibration motor sliding holder or the X-direction sliding holder; and a damping spring is also arranged on the polish rod at the bottom of the upper bracket of the vibrating screen.
7. The coating apparatus for manufacturing fine-diameter diamond beading according to claim 1, wherein the elevating template mechanism comprises an elevating cylinder, an elevating braze-coated template, a braze blade, a push rod of the elevating cylinder and the elevating braze-coated template are assembled into a whole, and the braze blade is embedded and fixed in the elevating braze-coated template.
8. A method for manufacturing fine-diameter diamond beads using the coating apparatus of any one of claims 1 to 7, the method comprising the steps of:
1) placing a circular tube substrate for preparing the diamond beads in a U-shaped groove of a circular tube substrate supporting plate on a left supporting plate and a right supporting plate of a circular tube substrate clamping rotating mechanism, and then positioning the air cylinder to work to enable a U-shaped push block to horizontally move to the same axis of the U-shaped groove so as to fix the circular tube substrate;
the lifting template mechanism is lifted to a high station, so that the U-shaped groove structure of the non-solder coating area of the lifting template mechanism completely contains the circular tube matrix,
2) the rotating unit works to enable the circular tube substrate to rotate around the axis of the circular tube substrate, and the brazing filler metal quantitative movement extrusion mechanism coats the brazing filler metal in the brazing filler metal coating area;
3) moving the circular tube substrate coated with the paste brazing filler metal at intervals to a diamond coating assembly under the action of a station conversion assembly to perform diamond coating;
4) after the brazing filler metal and the diamond particles are coated on the circular tube substrate, the whole metal circular tube is subjected to vacuum brazing, the diamond is firmly welded on the metal circular tube substrate, and the metal circular tube substrate is cut in the middle without being coated with the brazing filler metal to obtain the single thin-diameter diamond bead string.
9. The method of claim 8, wherein the method comprises the steps of: in the step 1), the paste-shaped brazing filler metal in the needle cylinder is quantitatively extruded by the air pressure control quantitative extruder under the action of air pressure, so that the paste-shaped brazing filler metal is adhered to the circular tube substrate.
10. The method of claim 8, wherein the method comprises the steps of: in the step 3), the diamonds fall down and adhere to the brazing filler metal layer under the action of the vibrating screen, and the excess diamonds which are not adhered are recovered by a diamond recovery mechanism.
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