CN215658316U

CN215658316U - Grinding disc welding machine

Info

Publication number: CN215658316U
Application number: CN202122450622.2U
Authority: CN
Inventors: 项大清
Original assignee: Taizhou Sincere Diamond Machinery Co ltd
Current assignee: Taizhou Sincere Diamond Machinery Co ltd
Priority date: 2021-10-12
Filing date: 2021-10-12
Publication date: 2022-01-28
Anticipated expiration: 2031-10-12

Abstract

The utility model provides a grinding disc welding machine, and belongs to the technical field of machine tools. It has solved the current mill surface blackened and the excessive problem of local deformation. The grinding disc welding machine comprises a rack and a grinding disc positioning rod rotationally connected with the rack, wherein a motor in transmission connection with the grinding disc positioning rod is mounted on the rack; the grinding disc welding machine also comprises two groups of high-frequency induction heaters, and each high-frequency induction heater comprises an induction heating coil; when the grinding disc is arranged on the grinding disc positioning rod, the induction heating ring of one group of high-frequency induction heaters is sleeved on the grinding disc positioning rod and is positioned under the grinding disc, and the induction heating ring of the other group of high-frequency induction heaters is positioned over the grinding disc. The two high-frequency induction heaters are adopted for heating, so that the control flexibility of output power can be improved, further, the heating efficiency and the heating temperature uniformity of the grinding disc are improved, the welding firmness is improved, and particularly, the blackening of the surface of the grinding disc and the excessive local deformation can be avoided.

Description

Grinding disc welding machine

Technical Field

The utility model belongs to the technical field of machine tools, relates to a welding machine, and particularly relates to a grinding disc welding machine.

Background

The diamond grinding disc is a disc grinding tool used on a grinding machine, mainly comprises a disc body and a diamond grinding block, wherein the diamond grinding block is welded or embedded on the disc body, and the working surface is flattened and ground through high-speed rotation of the grinding machine.

The existing diamond grinding blocks are fixedly connected with a disc body by brazing, and for the reason, the inventor proposes various automatic grinding disc welding machines, such as a grinding disc welding device (application number 201910095097.1), and when the grinding disc shown in the figure 8 is welded, the heating temperature consistency of the disc body is poor, the temperature difference is even more than 250 ℃ because the circumferential structure of the disc body is not completely uniform, and the temperature of a grinding block connecting area is generally lower than that of a hole side surrounding area, so that when the grinding block connecting area reaches the temperature required by brazing, such as 900-930 ℃, the hole side surrounding area exceeds 1050 ℃, and the surface of the grinding disc is blackened and the local deformation is excessive. 2. Brazing sheets can be placed between the grinding block and the grinding disc, the grinding disc leads the brazing sheets to be thrown out to the outer side in the rotating process, the brazing sheets deviate from a welding area, and welding firmness is reduced.

Disclosure of Invention

The utility model provides a grinding disc welding machine, and aims to solve the technical problem of how to improve the welding heating temperature uniformity of the grinding disc welding machine.

The technical problem to be solved by the utility model can be realized by the following technical scheme: a grinding disc welding machine comprises a rack and a grinding disc positioning rod rotationally connected with the rack, wherein a motor in transmission connection with the grinding disc positioning rod is mounted on the rack; the grinding disc welding machine is characterized by also comprising two groups of high-frequency induction heaters, wherein each high-frequency induction heater comprises an induction heating coil; when the grinding disc is arranged on the grinding disc positioning rod, the induction heating ring of one group of high-frequency induction heaters is sleeved on the grinding disc positioning rod and is positioned under the grinding disc, and the induction heating ring of the other group of high-frequency induction heaters is positioned over the grinding disc.

The grinding disc is heated by two groups of high-frequency induction heaters, so that the total power of the high-frequency induction heaters can be reduced, and if the power of the existing single high-frequency induction heater is 60KW, the power of one group of high-frequency induction heaters is 30KW, and the power of the other group of high-frequency induction heaters is 20 KW; therefore, the total power of the high-frequency induction heater is reduced, and further, the energy consumption and the brazing processing cost are reduced. The two high-frequency induction heaters are adopted for heating, so that the control flexibility of output power can be improved, further, the heating efficiency and the heating temperature uniformity of the grinding disc are improved, the welding firmness is improved, and particularly, the blackening of the surface of the grinding disc and the excessive local deformation can be avoided.

In the above-described lap welder, the induction heating coil includes an inner coil portion and an outer coil portion located outside the inner coil portion.

In the grinding disc welding machine, the distance between the induction heating ring and the bottom surface of the grinding disc is less than 15 mm.

In the grinding disc welding machine, the distance between the induction heating ring and the top surface of the grinding disc is less than 15 mm.

In the grinding disc welding machine, the grinding disc welding machine further comprises a sliding table which is horizontally arranged, the sliding table is connected with the rack through the guide assembly and the driving assembly, and the sliding table can move along the radial direction of the grinding disc positioning rod; the high-frequency induction heater also comprises a heater main body, and the heater main body of the high-frequency induction heater with the induction heating ring positioned right above the grinding disc is placed on the sliding table.

In foretell mill welding machine, the mill welding machine still includes the last pressure subassembly that has disk body depression bar and many abrasive brick depression bars, and the disk body depression bar can improve the disk body and the mill locating lever between pressure, and the abrasive brick depression bar can improve the abrasive brick and the disk body between pressure.

In the grinding disc welding machine, the upper pressing assembly further comprises an upper pressing seat and a driving piece, the disc body pressing rod and the plurality of grinding block pressing rods are installed on the upper pressing seat, the cylinder body of the driving piece is installed on the rack, and the piston rod of the driving piece is rotatably connected with the upper pressing seat.

In the grinding disc welding machine, the upper pressure assembly further comprises an upper pressure rod, the upper pressure rod is connected with the rack through a guide structure, the bottom of the upper pressure rod is rotatably connected with the upper pressure seat through a bearing, and a piston rod of the driving piece is connected with the upper pressure rod.

Drawings

Fig. 1 is a perspective view of a lap welder.

FIG. 2 is a front view of a lap welder.

Fig. 3 is a schematic sectional view of a-a in fig. 2.

In the figure, 1, a frame; 2. a grinding disc positioning rod; 2a, positioning a bearing surface; 2b, a positioning column part; 3. an upper pressing assembly; 3a, an upper pressing seat; 3b, an upper pressure lever; 3c, a driving member; 3d, a bearing; 3e, a disk body pressure lever; 3f, grinding block pressing rods; 3g, a spring; 4. a high-frequency induction heater; 4a, a heater main body; 4b, induction heating coils; 4b1, inner ring portion; 4b2, outer ring part; 5. a sliding table; 6. a tray body; 7. an auxiliary positioning frame; 8. grinding blocks; 9. an electric motor.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2 and 3, a grinding disc welding machine comprises a frame 1, a grinding disc positioning rod 2, an upper pressing assembly 3 and two groups of high-frequency induction heaters 4.

The grinding disc positioning rod 2 is rod-shaped, and the top of the grinding disc positioning rod 2 is provided with a positioning bearing surface 2a and a positioning column part 2 b. The grinding disc positioning rod 2 is rotatably connected with the rack 1, and the rack 1 is provided with a motor 9 which is in transmission connection with the grinding disc positioning rod 2, so that the motor 9 can drive the grinding disc positioning rod 2 to rotate.

The upper pressure assembly 3 comprises an upper pressure seat 3a, an upper pressure rod 3b and a driving piece 3c, the upper pressure rod 3b is connected with the rack 1 through a guide structure, and therefore the upper pressure rod 3b can vertically move up and down; the bottom of the upper pressure rod 3b is rotatably connected with the upper pressure seat 3a through a bearing 3d, the driving part 3c is an air cylinder, the cylinder body of the air cylinder is installed on the rack 1, and the piston rod of the driving part 3c is connected with the upper pressure rod 3 b; therefore, the upper pressing seat 3a has the advantages of flexible and stable lifting movement and flexible and stable rotation. The upper pressure seat 3a is fixedly connected with a disk body pressure rod 3e, and the bottom surface of the disk body pressure rod 3e is provided with a avoidance hole for embedding the positioning column part 2 b; a plurality of grinding block pressure rods 3f are arranged on the outer side of the disc body pressure rod 3e, the number of the grinding block pressure rods 3f is the same as that of the grinding blocks 8 in the grinding disc, and the positions of the grinding block pressure rods 3f correspond to those of the grinding blocks 8 one by one; the grinding block pressing rod 3f penetrates through the upper pressing seat 3a, the spring 3g is sleeved on the grinding block pressing rod 3f, the upper end of the spring 3g abuts against the upper pressing seat 3a, and the lower end of the spring 3g abuts against the grinding block pressing rod 3 f.

The grinding disc welding machine further comprises a sliding table 5 which is horizontally arranged, the sliding table 5 is connected with the rack 1 through a guide assembly and a driving assembly, and the sliding table 5 can enable the sliding table 5 to move along the radial direction of the grinding disc positioning rod 2. The high-frequency induction heater 4 includes a heater main body 4a and an induction heating coil 4b in a ring shape; the two groups of high-frequency induction heaters 4 are respectively called a first high-frequency induction heater 4 and a second high-frequency induction heater 4; a heater main body 4a of the first high-frequency induction heater 4 is arranged on the frame 1, and an induction heating ring 4b is sleeved on the grinding disc positioning rod 2; the heater main body 4a of the second high-frequency induction heater 4 is placed on the slide table 5, and the induction heating coil 4b is positioned above the grinding disc positioning rod 2. The induction heating coil 4b includes the inner ring portion 4b1 and the outer ring portion 4b2 located outside the inner ring portion 4b1, thereby increasing the radial width, realizing an increase in the overlapping area of the induction heating coil 4b and the top or bottom projection of the grinding disc, and further realizing an increase in the heating uniformity.

The function and advantages of the various components are further illustrated by illustrating the process of the abrasive disc welder machining the abrasive disc. Firstly, the grinding disc to be welded is arranged on the grinding disc positioning rod 2, namely the disc body 6 is positioned on the positioning bearing surface 2a, the positioning column part 2b is embedded in the central positioning hole of the disc body 6, at the moment, the induction heating coil 4b of the first high-frequency induction heater 4 is positioned right below the grinding disc, and the distance between the induction heating coil 4b and the bottom surface of the grinding disc is less than 15 mm. Then, the driving assembly is operated to enable the induction heating coil 4b of the second high-frequency induction heater 4 to be positioned right above the grinding disc, and the distance between the induction heating coil 4b and the top surface of the grinding disc is smaller than 15 mm. Then, a piston rod of the driving piece 3c is controlled to extend, the upper pressure seat 3a moves downwards, and the disc body pressure rod 3e presses the auxiliary positioning frame 7, so that the pressure between the disc body 6 and the positioning bearing surface 2a is improved; the grinding block pressure rod 3f is pressed on the grinding block 8, so that the pressure between the grinding block 8 and the disc body 6 is improved, and the brazing sheet is prevented from being thrown outwards by the grinding disc to be welded in the rotating process. And finally, the two groups of high-frequency induction heaters 4 are controlled to heat the grinding disc until the heating is finished.

Claims

1. A grinding disc welding machine comprises a rack (1) and a grinding disc positioning rod (2) rotationally connected with the rack (1), wherein a motor (9) in transmission connection with the grinding disc positioning rod (2) is mounted on the rack (1); the grinding disc welding machine is characterized by also comprising two groups of high-frequency induction heaters (4), wherein each high-frequency induction heater (4) comprises an annular induction heating coil (4 b); when the grinding disc is arranged on the grinding disc positioning rod (2), the induction heating ring (4 b) of one group of high-frequency induction heaters (4) is sleeved on the grinding disc positioning rod (2) and is positioned right below the grinding disc, and the induction heating ring (4 b) of the other group of high-frequency induction heaters (4) is positioned right above the grinding disc.

2. The abrasive disc welding machine of claim 1, characterized in that said induction heating coil (4 b) comprises an inner coil portion (4 b 1) and an outer coil portion (4 b 2) located outside the inner coil portion (4 b 1).

3. The lap welder of claim 1, characterized in that the distance between said induction heating coil (4 b) and the bottom surface of the lap is less than 15 mm.

4. The lap welder of claim 1, characterized in that the spacing between said induction heating coil (4 b) and the top surface of the lap is less than 15 mm.

5. A grinding disc welding machine according to claim 1, 2, 3 or 4, characterized in that the grinding disc welding machine further comprises a horizontally arranged sliding table (5), the sliding table (5) is connected with the machine frame (1) through a guide assembly and a driving assembly, and the sliding table (5) can enable the sliding table (5) to move along the radial direction of the grinding disc positioning rod (2); the high-frequency induction heater (4) also comprises a heater main body (4 a), and the heater main body (4 a) of the high-frequency induction heater (4) with the induction heating ring (4 b) positioned right above the grinding disc is placed on the sliding table (5).

6. A millstone welding machine according to claim 1 or 2 or 3 or 4, characterized in that it further comprises a pressure-up assembly (3) with a disk pressure bar (3 e) and a plurality of grinding block pressure bars (3 f), the disk pressure bar (3 e) being capable of increasing the pressure between the disk (6) and the millstone positioning bar (2), the grinding block pressure bar (3 f) being capable of increasing the pressure between the grinding blocks (8) and the disk (6).

7. The millstone welding machine according to claim 6, characterized in that the upper pressing assembly (3) further comprises an upper pressing seat (3 a) and a driving part (3 c), the disk body pressing rod (3 e) and the plurality of grinding block pressing rods (3 f) are arranged on the upper pressing seat (3 a), the cylinder body of the driving part (3 c) is arranged on the frame (1), and the piston rod of the driving part (3 c) is rotatably connected with the upper pressing seat (3 a).

8. The millstone welding machine according to claim 7, characterized in that the upper pressure component (3) further comprises an upper pressure rod (3 b), the upper pressure rod (3 b) is connected with the frame (1) through a guide structure, the bottom of the upper pressure rod (3 b) is rotatably connected with the upper pressure seat (3 a) through a bearing (3 d), and a piston rod of the driving piece (3 c) is connected with the upper pressure rod (3 b).