CN109551144B - Grinding disc welding positioning piece, grinding disc welding device and grinding disc welding method - Google Patents
Grinding disc welding positioning piece, grinding disc welding device and grinding disc welding method Download PDFInfo
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- CN109551144B CN109551144B CN201910095080.6A CN201910095080A CN109551144B CN 109551144 B CN109551144 B CN 109551144B CN 201910095080 A CN201910095080 A CN 201910095080A CN 109551144 B CN109551144 B CN 109551144B
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- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
- B23K37/0443—Jigs
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- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
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- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention provides a grinding disc welding positioning piece, a grinding disc welding device and a grinding disc welding method, and belongs to the technical field of welding. The problem that the uniformity of induction heating is insufficient when the existing millstone is welded is solved. The grinding disc welding positioning piece comprises a positioning plate and a heightening block, wherein the heightening block is fixedly connected with the positioning plate; the positioning plate is provided with a positioning structure which can be in positioning connection with a positioning seat in the grinding disc and/or the grinding disc welding device; the positioning plate is provided with a plurality of positioning through holes for placing grinding blocks of the grinding disc. The grinding disc welding device comprises a frame, a positioning seat, a disc body pressing rod, a grinding block pressing rod and a grinding disc welding positioning piece; the positioning seat is rotationally connected with the frame, and a motor in transmission connection with the positioning seat is arranged on the frame; the grinding disc welding positioning piece can be positioned between the disc body pressing rod and the positioning seat, and the grinding disc welding positioning piece and the disc body of the grinding disc can be in positioning connection with the positioning seat. In the induction heating process, the grinding block is only subjected to the action of gravity, so that the overflow of molten copper liquid by heating is avoided.
Description
Technical Field
The invention belongs to the technical field of welding, and relates to grinding disc welding, in particular to a grinding disc welding positioning piece.
The invention belongs to the technical field of welding, and relates to grinding disc welding, in particular to a grinding disc welding device.
The invention belongs to the technical field of welding, and relates to grinding disc welding, in particular to a method for welding grinding discs by using a grinding disc welding device.
Background
The diamond grinding disc is a disc type grinding tool used on a grinder, and mainly comprises a disc body and diamond grinding blocks, wherein the diamond grinding blocks are welded or embedded on the disc body, and the working surface is subjected to flat grinding through high-speed rotation of the grinder.
The prior diamond grinding block and the disk body are mostly fixedly connected by brazing, so the inventor has proposed various automatic grinding disk welding machines, such as an automatic grinding disk welding machine (application publication No. CN 102615414A), a diamond grinding disk welding device and a diamond grinding disk welding method (application publication No. CN 104646783A) and a grinding disk welding machine (application publication No. CN 108393816A) described in Chinese patent literature. The high-frequency induction coil in the existing automatic grinding disc welding machine is positioned at the outer side of the diamond grinding disc to be welded, so that the outer edge part of the diamond grinding block can be heated only, in other words, the existing automatic grinding disc welding machine is only suitable for welding the diamond grinding disc of which the diamond grinding block is positioned at the outer edge part of the disc body, is not suitable for welding the diamond grinding disc shown in figure 1, and particularly leads to uneven heating at two ends of a diamond grinding strip during heating, overheated at the outer end and supercooled at the inner end, the disc body is possibly deformed due to overheating, and insufficient welding firmness is caused due to supercooling. To this end, it is desirable for the person skilled in the art to be able to propose a solution suitable for welding a diamond grinding disc as shown in fig. 1.
Disclosure of Invention
The invention provides a grinding disc welding positioning piece, which aims to solve the technical problem of more uniform induction heating during grinding disc welding.
The invention provides a grinding disc welding device, and aims to solve the technical problem of more uniform induction heating during grinding disc welding.
The invention provides a method for welding millstone by using a millstone welding device, which aims to solve the technical problem of improving the welding firmness of the millstone.
The technical problems to be solved by the invention can be realized by the following technical proposal: a grinding disc welding positioning piece comprises a positioning plate and a heightening block, wherein the heightening block is fixedly connected with the positioning plate; the positioning plate is provided with a positioning structure which can be in positioning connection with a positioning seat in the grinding disc and/or the grinding disc welding device; the positioning plate is provided with a plurality of positioning through holes for placing grinding blocks of the grinding disc.
The induction heating copper pipe is bent to form a heating concave cavity, and a part of the disc body, a part of the grinding block and a part of the positioning plate are positioned in the heating concave cavity during welding. The elevating block forms a gap between the positioning plate and the disc body according to the height setting of the grinding block, so that the positioning plate and the disc body are prevented from being adhered together, and the side surface of the positioning through hole can limit the position of the grinding block.
The grinding block is placed in the positioning through hole, so that the induction current generated by the induction heating copper pipe directly heats the grinding block in an induction way, the temperature of the grinding block is increased more rapidly, the consistency of the temperature of the grinding block and the temperature of the disc body is improved, and the welding firmness is improved and the time required by induction heating is shortened; compared with the induction heating of the grinding block placed in the positioning groove of the positioning plate, the heating time can be shortened by more than 40%. The locating plate is provided with the locating through holes, so that the induction heating area of the locating plate is reduced, the heat dissipation is improved, and the locating plate has the advantages of low temperature, small deformation and long service life.
A grinding disc welding device comprises a frame, a positioning seat, a disc body pressing rod and a grinding block pressing rod; the positioning seat is rotationally connected with the frame, and a motor in transmission connection with the positioning seat is arranged on the frame; the disc body pressing rod and the grinding block pressing rod are both positioned above the positioning seat, and a first cylinder connected with the disc body pressing rod and a second cylinder connected with the grinding block pressing rod are installed on the rack; the grinding disc welding device further comprises the grinding disc welding positioning piece, wherein the grinding disc welding positioning piece can be positioned between the disc body pressing rod and the positioning seat, and the grinding disc welding positioning piece and the grinding disc body can be in positioning connection with the positioning seat.
The method for welding the grinding disc by using the grinding disc welding device is carried out according to the following sequence of steps,
feeding, namely horizontally arranging a disc body of a grinding disc, wherein a grinding disc welding positioning piece is positioned above the disc body, a lifting block is positioned between a positioning plate and the disc body, the grinding disc welding positioning piece and the disc body of the grinding disc are in positioning connection with a positioning seat, and a grinding block is placed in each positioning through hole of the grinding disc welding positioning piece; an induction heater is arranged on the rack and comprises a main body and an induction heating copper pipe, the induction heating copper pipe is bent to form a heating concave cavity, and the opening of the heating concave cavity is horizontally arranged; the outer edges of the disc body and the grinding disc welding positioning piece are embedded into the heating concave cavity;
the second step of clamping and fixing, namely, operating the first cylinder to enable the disc body pressing rod to press the grinding disc welding positioning piece, and enabling the disc body pressing rod and the positioning seat to clamp the disc body and the grinding disc welding positioning piece;
thirdly, heating, starting an induction heater and a motor, wherein the motor drives a positioning seat to rotate, and the positioning seat drives a disc body and a grinding disc welding positioning piece to rotate; the induction heater heats the disc body and the grinding block for a set period of time or heats the disc body and the grinding block to a set temperature;
fourth, cooling, namely, switching off the motor and the induction heater in no sequence; the position of the grinding block after the motor is closed and the position of the grinding block pressing rod are in a one-to-one correspondence state, the second cylinder is controlled to enable the grinding block pressing rod to be pressed on the grinding block in one-to-one correspondence, the disc body and the grinding block are gradually cooled, and the disc body and the grinding block are welded and fixedly connected together to form a grinding disc;
and fifthly, unloading, namely controlling the first cylinder and the second cylinder to enable the disc body pressing rod and the grinding block pressing rod to move upwards, and then unloading the grinding disc and the grinding disc welding positioning piece from the positioning seat together.
Compared with the prior art, the grinding block is only subjected to the action of gravity in the induction heating process, so that overflow of molten copper caused by heating due to overlarge stress of the grinding block is avoided, and welding firmness and stability between the grinding block and the disc body are further affected. In the induction heating process, the grinding block pressing mechanism does not need to rotate, so that the mechanical structure of the grinding disc welding device can be simplified, and the manufacturing cost of the grinding disc welding device can be reduced.
Drawings
Fig. 1 is a schematic perspective view of a grinding disc.
Fig. 2 is a schematic perspective view of a grinding disc welding positioning member in the first embodiment.
Fig. 3 is a schematic perspective view of a grinding disc welding device.
Fig. 4 and 5 are schematic perspective views of the method for welding the grinding disc in different states of the clamping step.
Fig. 6 and 7 are schematic views of the structure of the welded millstone method at different viewing angles during the induction heating step.
Fig. 8 is a schematic perspective view of the weld abrasive disc method in a cooling step.
Fig. 9 is a schematic perspective view of a positioning abrasive disc of an abrasive disc welding positioning element in the second embodiment.
Fig. 10 is an exploded view of a positioning disc of a disc welding positioner in the second embodiment.
Fig. 11 is a schematic perspective view of a grinding disc welding positioning member in the third embodiment.
80, millstone; 801. a tray body; 801a, connection holes; 801b, auxiliary positioning holes; 802. a grinding block; 1. the grinding disc is welded with a positioning piece; 1a, a positioning plate; 1a1, a first positioning hole; 1a2, positioning through holes; 1a3, positioning leg parts; 1a4, avoidance zone; 1b, heightening the block; 1b1, a first avoidance hole; 1c, a first positioning pin; 1d, a fourth locating pin; 2. a frame; 3. a positioning seat; 3a, a second positioning pin; 4. a motor; 5. a disc body compression bar; 6. a first cylinder; 7. a first connecting rod; 8. a first guide sleeve; 9. a grinding block compression bar; 10. a second cylinder; 11. a connecting seat; 12. a spring; 13. a second connecting rod; 14. a second guide sleeve; 15. a sliding table; 16. a guide structure; 17. a drive assembly; 18. an induction heater; 18a, a main body; 18b, induction heating the copper tube; 18c, heating the concave cavity; 19. assembling a base; 19a, third positioning pins; 20. an auxiliary alignment mechanism.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
Example 1
As shown in fig. 2 to 8, a grinding disc welding positioning piece 1 comprises a positioning plate 1a and a heightening block 1b, wherein the heightening block 1b is positioned at the center of a plate surface of the positioning plate 1a, and the heightening block 1b is fixedly connected with the positioning plate 1 a. The number of the elevating blocks 1b can be adaptively increased and the positions of the elevating blocks 1b relative to the positioning plate 1a can be adjusted according to the actual situation.
The positioning plate 1a is provided with a positioning structure which can be in positioning connection with a disc body 801 in the millstone 80 and/or a positioning seat 3 in the millstone welding device; specifically, the positioning structure comprises a first positioning hole 1a1 positioned at the center of the positioning plate 1a and a first positioning pin 1c positioned at one side of the first positioning hole 1a1, wherein the first positioning pin 1c is fixedly connected with the positioning plate 1a; the elevating block 1b is provided with a first avoiding hole 1b1 which is matched with the first positioning hole 1a 1.
The positioning plate 1a is provided with a plurality of positioning through holes 1a2, and the number and the positions of the positioning through holes 1a2 are in one-to-one correspondence with those of the grinding blocks 802 in the grinding disc 80. Each side wall of the positioning through hole 1a2 is provided with a positioning pin part 1a3, the area of the positioning through hole 1a2 is larger than that of the grinding block 802, the grinding block 802 of the grinding disc 80 is placed in the positioning through hole 1a2 when the grinding disc 80 is welded, and the positions of the grinding block 802 are positioned through the plurality of positioning pin parts 1a 3. An avoidance region 1a4 penetrating along the thickness direction of the positioning plate 1a is arranged between two adjacent positioning through holes 1a2 in the positioning plate 1 a.
As shown in fig. 3 to 8, a grinding disc welding device includes a frame 2, a positioning seat 3, and the above grinding disc welding positioning member 1. The top of the positioning seat 3 is provided with a second positioning pin 3a, and the second positioning pin 3a is vertically arranged; the bottom of the positioning seat 3 is rotationally connected with the frame 2, and the frame 2 is provided with a motor 4 in transmission connection with the positioning seat 3.
A disc body pressing mechanism and a grinding block pressing mechanism are arranged above the positioning seat 3. The tray body compressing mechanism comprises a tray body compression bar 5 and a first air cylinder 6, wherein the cylinder body of the first air cylinder 6 is fixedly connected with the frame 2, and the piston rod of the first air cylinder 6 is vertically arranged; the vertical setting of disk body depression bar 5, the quantity of disk body depression bar 5 is one, and disk body depression bar 5 and the coaxial heart setting of second locating pin 3a open on the lower terminal surface of disk body depression bar 5 has the second of confession second locating pin 3a to dodge the hole. The upper end of the disc body compression bar 5 is rotationally connected with a piston rod of the first cylinder 6, specifically, a first connecting rod 7 is fixedly connected to the piston rod of the first cylinder 6, the upper end of the disc body compression bar 5 is rotationally connected with the first connecting rod 7, a first guide sleeve 8 is sleeved outside the first connecting rod 7, and the first guide sleeve 8 is fixedly connected with the frame 2, so that the disc body compression bar 5 can stably lift and flexibly rotate.
The grinding block pressing mechanism comprises a grinding block pressing rod 9, a second air cylinder 10 and a connecting seat 11, wherein the cylinder body of the second air cylinder 10 is fixedly connected with the frame 2, and the piston rod of the second air cylinder 10 is vertically arranged; the number of the grinding block pressing rods 9 is the same as that of the grinding blocks 802 in the grinding disc 80 to be processed, and the positions of the grinding block pressing rods 9 are in one-to-one correspondence with the positions of the grinding blocks 802 in the grinding disc 80 to be processed. All the grinding block compression bars 9 are arranged on the connecting seat 11 in a penetrating way, and springs 12 are arranged between the grinding block compression bars 9 and the connecting seat 11. The connecting seat 11 is fixedly connected with a second connecting rod 13, a second guide sleeve 14 is sleeved outside the second connecting rod 13, and the second guide sleeve 14 is fixedly connected with the frame 2; the piston rod of the second cylinder 10 is connected with the upper end of the second connecting rod 13. Under the driving action of the second air cylinder 10, all the grinding block compression bars 9 can synchronously and stably lift, and the size of the downward pressing acting force of the grinding block compression bars 9 is controlled by controlling the descending stroke of the connecting seat 11 and the elasticity of the springs 12.
The outer side of the positioning seat 3 is provided with a sliding table 15 for placing an induction heater 18, and the sliding table 15 is connected with the frame 2 through a guide structure 16 which is horizontally arranged and enables the sliding table 15 to move along the radial direction of the second positioning pin 3 a; the frame 2 is provided with a driving assembly 17 connected with the sliding table 15, so that the sliding table 15 can move along the guiding direction of the guiding structure 16 by controlling the driving assembly 17.
The function and advantages of the various components are further illustrated by an illustration of the method of welding the abrasive disc 80 using the abrasive disc welding apparatus. The method of welding the abrasive disc 80 using the abrasive disc welding apparatus is performed in the following sequential steps,
the center of the disc body 801 of the grinding disc 80 is provided with a connecting hole 801a, the disc body 801 of the grinding disc 80 is also provided with an auxiliary positioning hole 801b, and the position of the first positioning pin 1c in the grinding disc welding positioning piece 1 is matched with the position of the auxiliary positioning hole 801b.
As shown in fig. 4, in the first feeding step, the grinding disc welding positioning piece 1 and the disc body 801 of the grinding disc 80 are both in positioning connection with the positioning seat 3, specifically, the disc body 801 of the grinding disc 80 is sleeved on the second positioning pin 3a of the positioning seat 3, and the disc body 801 of the grinding disc 80 is horizontally arranged, that is, the second positioning pin 3a passes through the connecting hole 801a; the grinding disc welding positioning piece 1 is positioned above the disc body 801, the heightening block 1b is positioned between the positioning plate 1a and the disc body 801, and the grinding disc welding positioning piece 1 is also sleeved on the second positioning pin 3a of the positioning seat 3, namely the second positioning pin 3a passes through the first avoidance hole 1b1 and the first positioning hole 1a1; the first positioning pin 1c of the grinding disc welding positioning piece 1 penetrates into the auxiliary positioning hole 801 b; a grinding block 802 is placed in each positioning through hole 1a2 of the grinding disc welding positioning member 1.
The elevating block 1b enables a gap to be formed between the positioning plate 1a and the grinding disc 801, so that the grinding disc 80 processing efficiency is prevented from being influenced by the fact that the grinding disc welding positioning piece 1 is adhered to the grinding disc 801 after heating. The height of the pad block 1b is also such that the plurality of positioning legs 1a3 can position the grinding block 802 when the grinding block 802 is placed in the positioning through hole 1a 2.
The gradual component assembly can be performed on the positioning seat 3 according to actual conditions, or the grinding disc welding positioning piece 1, the disc body 801 and the grinding block 802 can be assembled into an assembly, and then the assembly is placed on the positioning seat 3.
As shown in fig. 5 and 6, the second step of clamping and fixing is performed, the disc pressing mechanism is controlled to press the disc pressing mechanism on the disc welding positioning member 1, so that the disc pressing mechanism and the positioning seat 3 clamp the disc 801 and the disc welding positioning member 1, the disc 801 and the disc welding positioning member 1 are ensured to synchronously and stably rotate, and the grinding block 802 is ensured to stably rotate along with the disc 801. Specifically, the piston rod of the first cylinder 6 is operated to extend, the disc body pressing rod 5 vertically moves downwards until the lower end surface of the disc body pressing rod 5 presses on the positioning plate 1a in the grinding disc welding positioning piece 1, and the second positioning pin 3a penetrates into the second avoiding hole.
As shown in fig. 7, in the third heating step, the induction heater 18 includes a main body 18a and an induction heating copper tube 18b, and the induction heating copper tube 18b is bent to form a heating cavity 18c, and the heating cavity 18c is horizontally arranged with an opening. The induction heater 18 is placed on the slide 15, and the heating cavity 18c is also moved in the radial direction of the second positioning pin 3a when the slide 15 is moved in the guiding direction of the guiding structure 16. The induction heating copper tube 18b can be sleeved on the disc 801 and the grinding disc welding fixture 1, in other words, the outer edges of the disc 801 and the grinding disc welding fixture 1 can be embedded into the heating concave cavity 18 c.
Activating the induction heater 18, the motor 4 and the drive assembly 17; the motor 4 drives the positioning seat 3 to rotate, and the positioning seat 3 drives the disc 801 and the grinding disc welding positioning piece 1 to rotate and drives the disc pressing rod 5 to rotate relative to the first connecting rod 7; thereby, the disc body 801 of the grinding disc 80 and the grinding disc 80 rotate relative to the induction heating copper tube 18b of the induction heater 18, as shown by the circular arc arrow direction in fig. 7, so that the disc body 801 and all grinding blocks 802 can be inductively heated by the induction heating copper tube 18 b. The induction heater 18 heats the disk 801 and the grinding block 802 for a set period of time or heats the disk 801 and the grinding block 802 to a set temperature.
The driving assembly 17 drives the sliding table 15 to move, and then drives the induction heater 18 to move, as shown by a double-headed arrow direction in fig. 7, so that the induction heating copper pipe 18b is sleeved on the disc 801 and the millstone welding positioning piece 1 and moves reciprocally, the radial range of the heating disc 801 is increased, the uniform heating of the millstone 802 is ensured, and therefore, the millstone 80 can select the longer millstone 802 and enable the millstone 802 to extend towards the central direction of the millstone 80, namely, the millstone welding device is suitable for processing the millstone 80 shown in fig. 1.
The positioning leg portion 1a3 has a gap between the side surface of the grinding block 802 and the side surface of the positioning through hole 1a2, which reduces the influence of the positioning plate 1a on the induction current generated by the induction heater 18, i.e., improves the heating efficiency of the grinding block 802 by the induction current, and reduces the heating efficiency of the positioning plate 1 a. This configuration also prevents the heated positioning plate 1a from adhering to the abrasive pad 802, affecting the processing efficiency of the abrasive disc 80, and reducing the thermal conductivity between the abrasive pad 802 and the positioning plate 1 a. The avoiding area 1a4 in the positioning plate 1a also has the effects of reducing the influence of the induction current generated by the induction heater 18 on the positioning plate 1a, reducing the temperature of the positioning plate 1a, improving the influence of the induction current generated by the induction heater 18 on the disc 801 and the grinding block 802, and improving the heating efficiency of the disc 801 and the grinding block 802.
As shown in fig. 8, the fourth step of cooling, the motor 4 is turned off, the induction heater 18 is turned off, and the driving assembly 17 is turned off in no order; the positions of the grinding blocks 802 and the grinding block compression bars 9 are in one-to-one correspondence after the motor 4 is turned off; after the driving assembly 17 is closed, the induction heating copper pipe 18b is in a state of being separated from the disc 801 and the millstone welding positioning piece 1; immediately controlling the piston rod of the second cylinder 10 to retract, and pressing the grinding block pressing rods 9 on the grinding blocks 802 in a one-to-one correspondence manner; the disk 801 and the abrasive block 802 are gradually cooled naturally or by ventilation. The cooled abrasive block 802 is welded to the disc body 801 to form the abrasive disc 80.
In order to make the position of the rear grinding block 802 of the turn-off motor 4 correspond to the position of the grinding block pressing bar 9, an auxiliary alignment mechanism 20 is mounted on the frame 2.
And fifthly, unloading, namely firstly controlling the retraction of the piston rod of the first cylinder 6 and the extension of the piston rod of the second cylinder 10, and then unloading the millstone 80 and the millstone welding positioning piece 1 from the positioning seat 3 together.
Example two
As shown in fig. 9 and 10, the structure and principle of the present embodiment are basically the same as those of the first embodiment, and the basic same points are not described in detail, but only in different places, and the differences are that: the grinding disc welding positioning piece 1 further comprises an assembling base 19, and a third positioning pin 19a is arranged on the assembling base 19. In the first feeding step, the grinding disc welding positioning piece 1, the disc body 801 and the grinding block 802 are placed and assembled into an assembly, and then the assembly is placed on the positioning seat 3.
Example III
As shown in fig. 11, the structure and principle of the present embodiment are basically the same as those of the first and second embodiments, and the basic same points are not described in detail, but only in different places, and the difference is the positioning structure on the positioning plate 1 a: the positioning structure comprises a fourth positioning pin 1d positioned at the center of the positioning plate 1a and a first positioning pin 1c positioned at one side of the fourth positioning pin 1d, and the fourth positioning pin 1d and the first positioning pin 1c are fixedly connected with the positioning plate 1a; the first avoiding hole 1b1 is not required to be arranged on the elevating block 1b. The top of the positioning seat 3 is not provided with a second positioning pin 3a, but the top surface of the positioning seat 3 is provided with a second positioning hole, and a fourth positioning pin 1d penetrates into the second positioning hole.
Example IV
The structure and principle of the present embodiment are basically the same as those of the third embodiment, and the basic same points are not described in detail, only different places are described, and the different places are the positioning structures on the positioning plate 1 a: the center of the disc body 801 of the grinding disc 80 is provided with a center connecting rod, and the disc body 801 of the grinding disc 80 is also provided with a plurality of auxiliary positioning holes 801b. The center connecting rod penetrates into the second positioning hole. The positioning structure comprises a plurality of first positioning pins 1c which are in one-to-one correspondence with the auxiliary positioning holes 801b, the first positioning pins 1c are fixedly connected with the positioning plate 1a, and the first positioning pins 1c are positioned on the outer side of the center of the positioning plate 1 a.
Claims (7)
1. The grinding disc welding positioning piece comprises a positioning plate (1 a), and is characterized by further comprising a heightening block (1 b), wherein the heightening block (1 b) is fixedly connected with the positioning plate (1 a); a positioning structure which can be in positioning connection with a disc body (801) in the millstone (80) and/or a positioning seat (3) in the millstone welding device is arranged on the positioning plate (1 a); the positioning plate (1 a) is provided with a plurality of positioning through holes (1 a 2) for placing grinding blocks (802) of the grinding disc (80); an avoidance area (1 a 4) penetrating along the thickness direction of the positioning plate (1 a) is further arranged between two adjacent positioning through holes (1 a 2) in the positioning plate (1 a), and each side wall of the positioning through hole (1 a 2) is provided with a positioning support part (1 a 3);
the positioning structure comprises a first positioning hole (1 a 1) positioned at the center of the positioning plate (1 a) and a first positioning pin (1 c) positioned at one side of the first positioning hole (1 a 1), and the first positioning pin (1 c) is fixedly connected with the positioning plate (1 a); or the positioning structure comprises a fourth positioning pin (1 d) positioned at the center of the positioning plate (1 a) and a first positioning pin (1 c) positioned at one side of the fourth positioning pin (1 d), and the fourth positioning pin (1 d) and the first positioning pin (1 c) are fixedly connected with the positioning plate (1 a); or the positioning structure comprises a plurality of first positioning pins (1 c) fixedly connected with the positioning plate (1 a), and the first positioning pins (1 c) are positioned on the outer side of the center of the positioning plate (1 a).
2. A grinding disc welding device comprises a frame (2), a positioning seat (3), a disc body pressing rod (5) and a grinding block pressing rod (9); the positioning seat (3) is rotationally connected with the frame (2), and a motor (4) in transmission connection with the positioning seat (3) is arranged on the frame (2); the disc body compression bar (5) and the grinding block compression bar (9) are both positioned above the positioning seat (3), and a first cylinder (6) connected with the disc body compression bar (5) and a second cylinder (10) connected with the grinding block compression bar (9) are arranged on the frame; the grinding disc welding device is characterized by further comprising the grinding disc welding positioning piece (1) according to claim 1, wherein the grinding disc welding positioning piece (1) can be positioned between the grinding disc pressing rod (5) and the positioning seat (3), and the grinding disc welding positioning piece (1) and the grinding disc (80) can be in positioning connection with the positioning seat (3).
3. The millstone welding device according to claim 2, characterized in that the millstone pressing rod (5) is arranged vertically, the cylinder body of the first cylinder (6) is fixedly connected with the frame (2), and the piston rod of the first cylinder (6) is arranged vertically; a first connecting rod (7) is fixedly connected to a piston rod of the first air cylinder (6), the upper end of the disc body compression rod (5) is rotationally connected with the first connecting rod (7), a first guide sleeve (8) is sleeved outside the first connecting rod (7), and the first guide sleeve (8) is fixedly connected with the frame (2).
4. The grinding disc welding device according to claim 2, characterized in that the cylinder body of the second cylinder (10) is fixedly connected with the frame (2); a connecting seat (11) is arranged between the grinding block compression bars (9) and the second air cylinder (10), the grinding block compression bars (9) are vertically arranged, all the grinding block compression bars (9) are arranged on the connecting seat (11) in a penetrating way, and a spring (12) is arranged between the grinding block compression bars (9) and the connecting seat (11); a second connecting rod (13) is fixedly connected to the connecting seat (11), a second guide sleeve (14) is sleeved outside the second connecting rod (13), and the second guide sleeve (14) is fixedly connected with the frame (2); the piston rod of the second cylinder (10) is connected with the upper end of the second connecting rod (13).
5. The millstone welding device according to claim 2, 3 or 4, characterized in that a sliding table (15) for placing an induction heater (18) is arranged on the outer side of the positioning seat (3), and the sliding table (15) is connected with the frame (2) through a guiding structure (16) which is horizontally arranged and enables the sliding table (15) to move along the radial direction of the positioning seat (3); the frame (2) is provided with a driving component (17) connected with the sliding table (15).
6. A method for welding a grinding disc by using the grinding disc welding device according to claim 2, 3 or 4, characterized in that the method for welding the grinding disc by using the grinding disc welding device is performed in the following sequence of steps,
feeding in the first step, wherein a disc body (801) of a grinding disc (80) is horizontally arranged, a grinding disc welding positioning piece (1) is positioned above the disc body (801), a lifting block (1 b) is positioned between a positioning plate (1 a) and the disc body (801), the grinding disc welding positioning piece (1) and the disc body (801) of the grinding disc (80) are in positioning connection with a positioning seat (3), and a grinding block (802) is placed in each positioning through hole (1 a 2) of the grinding disc welding positioning piece (1); an induction heater (18) is arranged on the frame (2), the induction heater (18) comprises a main body (18 a) and an induction heating copper pipe (18 b), the induction heating copper pipe (18 b) is bent to form a heating cavity (18 c), and the opening of the heating cavity (18 c) is horizontally arranged; the outer edges of the disc body (801) and the grinding disc welding positioning piece (1) are embedded into the heating concave cavity (18 c);
the second step of clamping and fixing, namely, operating the first air cylinder (6) to enable the disc body pressing rod (5) to press on the grinding disc welding positioning piece (1), and enabling the disc body pressing rod (5) and the positioning seat (3) to clamp the disc body (801) and the grinding disc welding positioning piece (1);
thirdly, heating, namely starting an induction heater (18) and a motor (4), wherein the motor (4) drives a positioning seat (3) to rotate, and the positioning seat (3) drives a disc body (801) and a millstone welding positioning piece (1) to rotate; the induction heater (18) heats the disc body (801) and the grinding block (802) for a set period of time or heats the disc body (801) and the grinding block (802) to a set temperature;
fourth step of cooling, namely, switching off the motor (4) and the induction heater (18) in no sequence; the position of the grinding block (802) after the motor (4) is closed and the position of the grinding block pressing rod (9) are in a one-to-one correspondence state, the second cylinder (10) is controlled to enable the grinding block pressing rod (9) to be pressed on the grinding block (802) one-to-one correspondence, the disc body (801) and the grinding block (802) are gradually cooled, and the disc body (801) and the grinding block (802) are fixedly connected together through welding to form the grinding disc (80);
and fifthly, unloading, namely controlling the first air cylinder (6) and the second air cylinder (10) to enable the disc body pressing rod (5) and the grinding block pressing rod (9) to move upwards, and then unloading the grinding disc (80) and the grinding disc welding positioning piece (1) from the positioning seat (3) together.
7. A method for welding a grinding disc by using the grinding disc welding device according to claim 5, characterized in that the method for welding the grinding disc by using the grinding disc welding device is performed in the following sequence of steps,
feeding in the first step, wherein a disc body (801) of a grinding disc (80) is horizontally arranged, a grinding disc welding positioning piece (1) is positioned above the disc body (801), a lifting block (1 b) is positioned between a positioning plate (1 a) and the disc body (801), the grinding disc welding positioning piece (1) and the disc body (801) of the grinding disc (80) are in positioning connection with a positioning seat (3), and a grinding block (802) is placed in each positioning through hole (1 a 2) of the grinding disc welding positioning piece (1); an induction heater (18) is arranged on the sliding table (15), the induction heater (18) comprises a main body (18 a) and an induction heating copper pipe (18 b), the induction heating copper pipe (18 b) is bent to form a heating cavity (18 c), and the opening of the heating cavity (18 c) is horizontally arranged; when the sliding table (15) moves along the guiding direction of the guiding structure (16), the heating concave cavity (18 c) also moves along the radial direction of the positioning seat (3), and the outer edges of the disc body (801) and the grinding disc welding positioning piece (1) can be embedded into the heating concave cavity (18 c);
the second step of clamping and fixing, namely, operating the first air cylinder (6) to enable the disc body pressing rod (5) to press on the grinding disc welding positioning piece (1), and enabling the disc body pressing rod (5) and the positioning seat (3) to clamp the disc body (801) and the grinding disc welding positioning piece (1);
thirdly, heating, namely starting an induction heater (18), a motor (4) and a driving assembly (17), wherein the motor (4) drives a positioning seat (3) to rotate, and the positioning seat (3) drives a disc body (801) and a millstone welding positioning piece (1) to rotate; the driving assembly (17) drives the sliding table (15) and the induction heater (18) to move so that the outer edges of the disc body (801) and the grinding disc welding positioning piece (1) are embedded into the heating concave cavity (18 c) and move reciprocally; the induction heater (18) heats the disc body (801) and the grinding block (802) for a set period of time or heats the disc body (801) and the grinding block (802) to a set temperature;
a fourth step of cooling, namely, switching off the motor (4), the induction heater (18) and the driving component (17) in no sequence; the positions of the rear grinding blocks (802) of the closed motor (4) and the grinding block pressing rods (9) are in a one-to-one correspondence state, and the induction heating copper tubes (18 b) of the closed driving assembly (17) are in a state of being separated from the disc body (801) and the grinding disc welding positioning piece (1); controlling the second cylinder (10) to enable the grinding block compression bars (9) to be pressed on the grinding blocks (802) in a one-to-one correspondence manner, gradually cooling the disc body (801) and the grinding blocks (802), and fixedly connecting the disc body (801) and the grinding blocks (802) together by welding to form the grinding disc (80);
and fifthly, unloading, namely controlling the first air cylinder (6) and the second air cylinder (10) to enable the disc body pressing rod (5) and the grinding block pressing rod (9) to move upwards, and then unloading the grinding disc (80) and the grinding disc welding positioning piece (1) from the positioning seat (3) together.
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| CN201910095080.6A CN109551144B (en) | 2019-01-31 | 2019-01-31 | Grinding disc welding positioning piece, grinding disc welding device and grinding disc welding method |
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| CN109570685B (en) * | 2019-01-31 | 2024-05-03 | 台州市圣西亚金刚石设备有限公司 | Millstone welding device |
| CN110722320B (en) * | 2019-11-14 | 2021-11-19 | 陕西航空电气有限责任公司 | Welding tool for installation support of ignition device of aero-engine |
| CN115229398A (en) * | 2022-09-22 | 2022-10-25 | 泉州市恺益科技有限公司 | Welding device for diamond grinding disc |
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