A brazing fixture applicable to a brazing processing ceramic induction heating furnace

Abstract

A brazing fixture applicable to a ceramic induction heating furnace for brazing processing, which relates to a brazing fixture for a heating furnace used in brazing processing. In order to solve the problems that it is difficult to control the welding quality and the efficiency is low for the welding of the furnace body of the existing ceramic induction heating furnace and metal components. The brazing fixture applicable to a ceramic induction heating furnace for brazing processing of the present invention is composed of a base, two retaining ring brackets, a positioning bracket, a retaining ring and a sliding pressing block. The brazing fixture of the present invention can fix metal components such as an induction coil bushing, a gas pipeline to be welded, and a thermocouple bushing on the furnace body of the ceramic induction heating furnace, effectively preventing the movement of the components to be welded, ensuring the welding quality and improving the welding efficiency.

Description

Technical Field

[0001] The present invention relates to a brazing fixture for a brazing processing heating furnace. Background Art

[0002] With the continuous development of materials science, new materials such as ceramics and ceramic composites have emerged continuously. Although ceramics and ceramic composites play an irreplaceable role in aspects such as insulation and heat insulation, the toughness of ceramic materials is still inferior to that of metals in terms of toughness and so on. Therefore, connecting the two to form a metal-ceramic composite structure and taking into account the advantages of both can obtain a composite structure of dissimilar materials with excellent performance.

[0003] At present, brazing is an important method for realizing the connection between ceramics and metals. Brazing is a welding method in which a filler metal with a melting point lower than that of the workpiece and the workpiece are simultaneously heated to the melting temperature of the filler metal, and then the liquid filler metal is used to fill the gaps of the solid workpiece to connect the metals.

[0004] An induction heating furnace uses the method of electromagnetic induction to generate current inside the material to be heated, and relies on the energy of these eddy currents to achieve the heating purpose. In order to maintain the temperature inside the furnace, foam refractory bricks are usually used as heat insulation materials, but their mechanical properties are poor. And the shell for support and protection is usually made of steel, but it is heavy. Ceramic materials have the characteristics of low thermal conductivity, small density, and excellent mechanical properties. Therefore, ceramics can be used as the furnace body to combine the heat insulation layer and the shell into one. Attached Figure 1 is a schematic structural diagram of an existing ceramic induction heating furnace. The ceramic furnace body can not only maintain the heat inside the furnace, but also play a role in support and protection, which can simplify the structure of the induction heating furnace and reduce the overall weight.

[0005] A gas pipeline and a thermocouple bushing are welded on the side wall of the furnace body of the ceramic induction heating furnace. The outer end of the thermocouple protrudes from the center of the thermocouple bushing. Two induction coil bushings are welded at the bottom of the furnace body; the gas pipeline includes a vertical pipe, a horizontal pipe and a vertical pipe. The horizontal pipe is arranged between the vertical pipe and the vertical pipe. Both ends of the horizontal pipe are perpendicularly fixedly connected and communicated with the vertical pipe and the vertical pipe respectively. The vertical pipe is perpendicularly welded to the side wall of the furnace body. The gas pipeline, the thermocouple bushing and the induction coil bushing are metal components. Therefore, when these metal components are welded to the furnace body of the ceramic induction heating furnace, there are problems such as a large number of components and complex weld shapes, resulting in difficult control of welding quality and low efficiency. Therefore, it is necessary to design a brazing fixture suitable for a ceramic induction heating furnace to improve the brazing quality and production efficiency. Summary of the Invention

[0006] In order to solve the problems of difficult control of welding quality and low efficiency between the furnace body of the existing ceramic induction heating furnace and metal components, the present invention proposes a brazing fixture suitable for brazing and processing a ceramic induction heating furnace.

[0007] The brazing fixture of the present invention applicable to brazing a ceramic induction heating furnace is composed of a base 1, two retaining ring brackets 2, a positioning bracket 3, a retaining ring 4, and a sliding pressure block 5;

[0008] On the upper surface of the base 1, two symmetrical card slots 13 are provided, and the card slots 13 are used to fix the ceramic furnace body; between the two symmetrical card slots 13 on the base 1, two setscrews 8 are provided; on both sides of the base 1, two horizontal first base horizontal connection blocks 11 are symmetrically arranged, and at the end of each first base horizontal connection block 11, a first base vertical connection block 12 is fixedly connected; a second base horizontal connection block 14 is arranged on the side of the base 1, the second base horizontal connection block 14 is L-shaped, and one end of one side of the second base horizontal connection block 14 is fixedly connected to the side of the base 1; on the upper surface of the other side of the second base horizontal connection block 14, a third base vertical connection block 16 is provided, and at the end of the other side of the second base horizontal connection block 14, a second base vertical connection block 15 is fixedly connected. There is a groove on the upper end surface of the second base vertical connection block 15, and a pressure plate 9 is arranged on the upper part of the second base vertical connection block 15. There is a groove on the lower surface of the pressure plate 9, and the pressure plate 9 and the second base vertical connection block 15 are connected by bolts; on one surface of the retaining ring bracket 2, a chute 21 is arranged along the length direction; the main body of the retaining ring 4 is a circular ring body 41, and on both sides of the circular ring body 41, a horizontal second retaining ring horizontal connection block 43 and a horizontal third retaining ring horizontal connection block 45 are symmetrically arranged; at the end of the third retaining ring horizontal connection block 45, a second convex block 46 is provided, and at the end of the second retaining ring horizontal connection block 43, a first convex block 44 is provided; between the second retaining ring horizontal connection block 43 and the third retaining ring horizontal connection block 45 on the side of the circular ring body 41, a horizontal first retaining ring horizontal connection block 42 is fixedly connected; the sliding pressure block 5 is composed of a slider 51 and a horizontal pressure block 52. A horizontal through hole 53 is provided on the slider 51, the horizontal pressure block 52 is arranged on the lower side of the slider 51, and two horizontal grooves 54 are provided on the lower end surface of the horizontal pressure block 52;

[0009] The positioning bracket 3 is vertically arranged. The upper end of the positioning bracket 3 is horizontally connected to the first collar horizontal connecting block 42 by bolts, and the lower end of the positioning bracket 3 is vertically connected to the third base vertical connecting block 16 by bolts; the collar 4 is arranged above the base 1, the first collar horizontal connecting block 42 in the collar 4 is arranged above the third base vertical connecting block 16, and the second collar horizontal connecting block 43 and the third collar horizontal connecting block 45 are respectively arranged above the two first base horizontal connecting blocks 11; the lower ends of the two collar brackets 2 are respectively connected to the first base vertical connecting block 12; the upper end of one of the collar brackets 2 is connected to the end of the third collar horizontal connecting block 45, and the second convex block 46 at the end of the third collar horizontal connecting block 45 is arranged in the chute 21 of the collar bracket 2. The upper end of the other collar bracket 2 is connected to the second collar horizontal connecting block 43, and the first convex block 44 at the end of the second collar horizontal connecting block 43 is arranged in the chute 21 of the collar bracket 2; the horizontal through hole 53 provided on the slider 51 is sleeved on the first collar horizontal connecting block 42; a horizontal sliding block pressing bolt 6 is arranged on the outside of the horizontal pressing block 52 on the positioning bracket 3, and a horizontal air pipe pressing bolt 7 is arranged below the sliding block pressing bolt 6 on the positioning bracket 3.

[0010] The principle and beneficial effects of the present invention are as follows:

[0011] When the brazing fixture applicable to the brazing of a ceramic induction heating furnace in the present invention is in use, the furnace body of the ceramic induction heating furnace to be brazed is placed in the collar 4, the bottom of the furnace body is placed in the card slot 13 on the base 1, and the two setscrews 8 respectively press the two induction coil bushings tightly against the bottom of the furnace body; the horizontal pipe in the gas pipeline to be brazed is pressed tightly against the second base vertical connecting block 15 through the pressing plate 9, and the air pipe pressing bolt 7 presses the vertical pipe in the gas pipeline to be brazed tightly against the side wall of the furnace body; the sliding block pressing bolt 6 is used to adjust the position of the slider 51 on the first collar horizontal connecting block 42, and the first collar horizontal connecting block 42 presses the thermocouple bushing tightly against the side wall of the furnace body; the horizontal groove 54 is used to accommodate the protruding thermocouple to avoid damage to the thermocouple; the brazing fixture of the present invention can fix the metal components such as the induction coil bushing, the gas pipeline to be brazed, and the thermocouple bushing on the furnace body of the ceramic induction heating furnace, effectively preventing the movement of the components to be brazed, ensuring the welding quality, and improving the welding efficiency. Description of the Drawings

[0012] Figure 1 is a structural schematic diagram of an existing ceramic induction heating furnace;

[0013] Figure 2 is a structural schematic diagram of the brazing fixture applicable to the brazing of a ceramic induction heating furnace in Embodiment 1;

[0014] Figure 3Schematic diagram of the structure after the brazing fixture and the ceramic induction heating furnace in Embodiment 1 are assembled; in the figure, a is the vertical pipe, b is the horizontal pipe, c is the vertical pipe, and d is the furnace body of the ceramic induction heating furnace;

[0015] Figure 4 Schematic diagram of the structure of the base 1;

[0016] Figure 5 Schematic diagram of the structure of the retaining ring bracket 2;

[0017] Figure 6 Schematic diagram of the structure of the retaining ring 4;

[0018] Figure 7 Schematic diagram of the structure of the sliding pressure block 5. Specific implementation mode

[0019] The technical solution of the present invention is not limited to the following specific implementation modes listed, and also includes any reasonable combination between the specific implementation modes.

[0020] Specific implementation mode 1: The brazing fixture applicable to brazing the ceramic induction heating furnace in this implementation mode is composed of a base 1, two retaining ring brackets 2, a positioning bracket 3, a retaining ring 4 and a sliding pressure block 5;

[0021] The upper surface of the base 1 is provided with two symmetric card slots 13 for fixing the ceramic furnace body. Between the two symmetric card slots 13 on the base 1, there are two setscrews 8. On both sides of the base 1, two horizontal first base horizontal connecting blocks 11 are symmetrically arranged. The end of each first base horizontal connecting block 11 is fixedly connected to a first base vertical connecting block 12. The second base horizontal connecting block 14 is arranged on the side of the base 1 and is L-shaped. One end of one side of the second base horizontal connecting block 14 is fixedly connected to the side of the base 1. On the upper surface of the other side of the second base horizontal connecting block 14, there is a third base vertical connecting block 16. The end of the other side of the second base horizontal connecting block 14 is fixedly connected to a second base vertical connecting block 15. There is a groove on the upper end surface of the second base vertical connecting block 15. There is a pressing plate 9 on the upper part of the second base vertical connecting block 15. There is a groove on the lower surface of the pressing plate 9. The pressing plate 9 and the second base vertical connecting block 15 are connected by bolts. One surface of the retaining ring bracket 2 is provided with a chute 21 along the length direction. The main body of the retaining ring 4 is a toroid 41. On both sides of the toroid 41, a horizontal second retaining ring horizontal connecting block 43 and a horizontal third retaining ring horizontal connecting block 45 are symmetrically arranged. The end of the third retaining ring horizontal connecting block 45 is provided with a second protrusion 46. The end of the second retaining ring horizontal connecting block 43 is provided with a first protrusion 44. A horizontal first retaining ring horizontal connecting block 42 is fixedly connected between the second retaining ring horizontal connecting block 43 and the third retaining ring horizontal connecting block 45 on the side of the toroid 41. The sliding pressing block 5 is composed of a slider 51 and a horizontal pressing block 52. The slider 51 is provided with a horizontal through hole 53. The horizontal pressing block 52 is arranged on the lower side of the slider 51. There are two horizontal grooves 54 on the lower end surface of the horizontal pressing block 52.

[0022] The positioning bracket 3 is vertically arranged. The upper end of the positioning bracket 3 is horizontally connected to the first clamping ring horizontal connecting block 42 by bolts, and the lower end of the positioning bracket 3 is vertically connected to the third base vertical connecting block 16 by bolts. The clamping ring 4 is arranged above the base 1. The first clamping ring horizontal connecting block 42 in the clamping ring 4 is arranged above the third base vertical connecting block 16. The second clamping ring horizontal connecting block 43 and the third clamping ring horizontal connecting block 45 are respectively arranged above the two first base horizontal connecting blocks 11. The lower ends of the two clamping ring brackets 2 are respectively connected to the first base vertical connecting block 12. The upper end of one clamping ring bracket 2 is connected to the end of the third clamping ring horizontal connecting block 45. The second convex block 46 at the end of the third clamping ring horizontal connecting block 45 is arranged in the chute 21 of the clamping ring bracket 2. The upper end of the other clamping ring bracket 2 is connected to the second clamping ring horizontal connecting block 43. The first convex block 44 at the end of the second clamping ring horizontal connecting block 43 is arranged in the chute 21 of the clamping ring bracket 2. The horizontal through hole 53 provided on the slider 51 is sleeved on the first clamping ring horizontal connecting block 42. A horizontal sliding block pressing bolt 6 is arranged outside the horizontal pressing block 52 on the positioning bracket 3, and a horizontal air pipe pressing bolt 7 is arranged below the sliding block pressing bolt 6 on the positioning bracket 3.

[0023] This embodiment is applicable to the use of a brazing fixture for a brazed ceramic induction heating furnace. When in use, the furnace body of the ceramic induction heating furnace to be brazed is placed in the clamping ring 4, and the bottom of the furnace body is placed in the clamping groove 13 on the base 1. The two setscrews 8 respectively press two induction coil bushings tightly against the bottom of the furnace body. The horizontal pipe in the gas pipeline to be brazed is pressed tightly against the second base vertical connecting block 15 through the pressing plate 9, and the air pipe pressing bolt 7 presses the vertical pipe in the gas pipeline to be brazed tightly against the side wall of the furnace body. The sliding block pressing bolt 6 is used to adjust the position of the slider 51 on the first clamping ring horizontal connecting block 42, and the first clamping ring horizontal connecting block 42 presses the thermocouple bushing tightly against the side wall of the furnace body. The horizontal groove 54 is used to accommodate the protruding thermocouple to avoid damage to the thermocouple. The brazing fixture of this embodiment can fix metal components such as induction coil bushings, gas pipelines to be brazed, and thermocouple bushings on the furnace body of the ceramic induction heating furnace, effectively preventing the movement of the components to be brazed, ensuring the welding quality, and improving the welding efficiency.

[0024] Specific embodiment two: The difference between this embodiment and specific embodiment one is that the groove on the upper end surface of the second base vertical connecting block 15 and the groove on the lower surface of the pressing plate 9 are arranged opposite to each other.

[0025] Specific embodiment three: The difference between this embodiment and specific embodiment one or two is that the chute 21 of the clamping ring bracket 2 and the first convex block 44 at the end of the second clamping ring horizontal connecting block 43 are in clearance fit; the chute 21 of the clamping ring bracket 2 and the second convex block 46 at the end of the third clamping ring horizontal connecting block 45 are in clearance fit.

[0026] Specific Embodiment 4: The difference between this embodiment and any one of Embodiments 1 to 3 is that the base 1 is circular.

[0027] Specific Embodiment 5: The difference between this embodiment and any one of Embodiments 1 to 4 is that the positioning bracket 3 is strip-shaped.

[0028] Specific Embodiment 6: The difference between this embodiment and any one of Embodiments 1 to 5 is that the snap ring bracket 2 is strip-shaped.

[0029] Specific Embodiment 7: The difference between this embodiment and any one of Embodiments 1 to 6 is that the end of the screw rod of the upper sliding press block compression bolt 6 contacts the side of the horizontal press block 52.

[0030] Specific Embodiment 8: The difference between this embodiment and any one of Embodiments 1 to 7 is that the set screw 8 is arranged in the threaded hole of the base 1, and the threaded hole penetrates through the base 1.

[0031] Specific Embodiment 9: The difference between this embodiment and any one of Embodiments 1 to 8 is that the sliding press block compression bolt 6 is arranged in the horizontal threaded hole provided on the positioning bracket 3, and a nut is provided at the end of the sliding press block compression bolt 6 outside the positioning bracket 3.

[0032] Specific Embodiment 10: The difference between this embodiment and any one of Embodiments 1 to 9 is that the air pipe compression bolt 7 is arranged in the horizontal threaded hole provided on the positioning bracket 3, and a nut is provided at the end of the air pipe compression bolt 7 inside the positioning bracket 3.

[0033] Example 1:

[0034] Combined with Figures 1 to 7 To illustrate this example, the brazing fixture applicable to brazing a ceramic induction heating furnace in this example is composed of a base 1, two snap ring brackets 2, a positioning bracket 3, a snap ring 4 and a sliding press block 5;

[0035] The base 1 is circular. Two symmetrical card slots 13 are provided on the upper surface of the base 1, and the card slots 13 are used to fix the ceramic furnace body. Two setscrews 8 are provided between the two symmetrical card slots 13 on the base 1. The setscrews 8 are arranged in the threaded holes of the base 1, and the threaded holes penetrate through the base 1. Two horizontal first base horizontal connecting blocks 11 are symmetrically arranged on both sides of the base 1. One end of each first base horizontal connecting block 11 is fixedly connected with a first base vertical connecting block 12. The second base horizontal connecting block 14 is arranged on the side of the base 1. The second base horizontal connecting block 14 is L-shaped. One end of one side of the second base horizontal connecting block 14 is fixedly connected with the side of the base 1. A third base vertical connecting block 16 is provided on the upper surface of the other side of the second base horizontal connecting block 14. One end of the other side of the second base horizontal connecting block 14 is fixedly connected with a second base vertical connecting block 15. A groove is provided on the upper end surface of the second base vertical connecting block 15. A pressing plate 9 is provided on the upper part of the second base vertical connecting block 15. A groove is provided on the lower surface of the pressing plate 9. The pressing plate 9 and the second base vertical connecting block 15 are connected by bolts. The groove on the upper end surface of the second base vertical connecting block 15 and the groove on the lower surface of the pressing plate 9 are arranged opposite to each other.

[0036] The card ring support 2 is strip-shaped. A chute 21 is arranged along the length direction on one surface of the card ring support 2. The main body of the card ring 4 is an annular body 41. Two horizontal second card ring horizontal connecting blocks 43 and two horizontal third card ring horizontal connecting blocks 45 are symmetrically arranged on both sides of the annular body 41. A second convex block 46 is arranged at the end of the third card ring horizontal connecting block 45. A first convex block 44 is arranged at the end of the second card ring horizontal connecting block 43. A horizontal first card ring horizontal connecting block 42 is fixedly connected between the second card ring horizontal connecting block 43 and the third card ring horizontal connecting block 45 on the side of the annular body 41. The sliding pressing block 5 is composed of a slider 51 and a horizontal pressing block 52. A horizontal through hole 53 is provided on the slider 51. The horizontal pressing block 52 is arranged on the lower side of the slider 51. Two horizontal grooves 54 are provided on the lower end surface of the horizontal pressing block 52.

[0037] The positioning bracket 3 is strip-shaped and vertically arranged. The upper end of the positioning bracket 3 is horizontally connected to the first retaining ring horizontal connecting block 42 by bolts, and the lower end of the positioning bracket 3 is vertically connected to the third base vertical connecting block 16 by bolts; the retaining ring 4 is arranged above the base 1, the first retaining ring horizontal connecting block 42 in the retaining ring 4 is arranged above the third base vertical connecting block 16, and the second retaining ring horizontal connecting block 43 and the third retaining ring horizontal connecting block 45 are respectively arranged above the two first base horizontal connecting blocks 11; the lower ends of the two retaining ring brackets 2 are respectively connected to the first base vertical connecting block 12; the upper end of one of the retaining ring brackets 2 is connected to the end of the third retaining ring horizontal connecting block 45, and the second convex block 46 at the end of the third retaining ring horizontal connecting block 45 is arranged in the chute 21 of the retaining ring bracket 2, and the upper end of the other retaining ring bracket 2 is connected to the second retaining ring horizontal connecting block 43, and the first convex block 44 at the end of the second retaining ring horizontal connecting block 43 is arranged in the chute 21 of the retaining ring bracket 2; the horizontal through hole 53 provided on the slider 51 is sleeved on the first retaining ring horizontal connecting block 42; a horizontal sliding block pressing bolt 6 is arranged outside the horizontal pressing block 52 on the positioning bracket 3, the end of the screw rod of the sliding block pressing bolt 6 contacts the side of the horizontal pressing block 52, the sliding block pressing bolt 6 is arranged in the horizontal threaded hole provided on the positioning bracket 3, and a nut is arranged at the end of the sliding block pressing bolt 6 outside the positioning bracket 3; a horizontal air pipe pressing bolt 7 is arranged below the sliding block pressing bolt 6 on the positioning bracket 3, the air pipe pressing bolt 7 is arranged in the horizontal threaded hole provided on the positioning bracket 3, and a nut is arranged at the end of the air pipe pressing bolt 7 inside the positioning bracket 3; the chute 21 of the retaining ring bracket 2 and the first convex block 44 at the end of the second retaining ring horizontal connecting block 43 are in clearance fit; the chute 21 of the retaining ring bracket 2 and the second convex block 46 at the end of the third retaining ring horizontal connecting block 45 are in clearance fit.

[0038] This embodiment is applicable to the use of the brazing fixture for the brazing of the ceramic induction heating furnace. When in use, the furnace body of the ceramic induction heating furnace to be brazed is placed in the retaining ring 4, the bottom of the furnace body is placed in the card slot 13 on the base 1, and the two setscrews 8 respectively press the two induction coil bushings tightly against the bottom of the furnace body; the horizontal pipe in the gas pipeline to be brazed is pressed tightly against the second base vertical connecting block 15 by the pressing plate 9, and the air pipe pressing bolt 7 presses the vertical pipe in the gas pipeline to be brazed tightly against the side wall of the furnace body; the sliding block pressing bolt 6 is used to adjust the position of the slider 51 on the first retaining ring horizontal connecting block 42, and the first retaining ring horizontal connecting block 42 presses the thermocouple bushing tightly against the side wall of the furnace body; the horizontal groove 54 is used to accommodate the protruding thermocouple to avoid damage to the thermocouple; the brazing fixture of this embodiment can fix the metal components such as the induction coil bushing, the gas pipeline to be brazed, and the thermocouple bushing on the furnace body of the ceramic induction heating furnace, effectively preventing the movement of the components to be brazed, ensuring the welding quality, and improving the welding efficiency.

Claims

1. A brazing fixture suitable for brazing ceramic induction heating furnace, characterized in that: The brazing fixture suitable for brazing a ceramic induction heating furnace comprises a base (1), two clamping ring brackets (2), a positioning bracket (3), a clamping ring (4) and a sliding pressing block (5); The upper surface of the base (1) is provided with two symmetrical slots (13), and the slots (13) are used to fix the ceramic furnace body; two top screws (8) are provided between the two symmetrical slots (13) on the base (1); two horizontal first base horizontal connecting blocks (11) are symmetrically provided on both sides of the base (1), and the end of each first base horizontal connecting block (11) is fixedly connected to a first base vertical connecting block (12); a second base horizontal connecting block (14) is provided on the side of the base (1), and the second base horizontal connecting block (14) is provided on the side of the base (1). The connecting block (14) is L-shaped, and the end of one side of the second base horizontal connecting block (14) is fixedly connected to the side of the base (1); the upper surface of the other side of the second base horizontal connecting block (14) is provided with a third base vertical connecting block (16); the end of the other side of the second base horizontal connecting block (14) is fixedly connected to the second base vertical connecting block (15); the upper end surface of the second base vertical connecting block (15) is provided with a groove; the upper part of the second base vertical connecting block (15) is provided with a pressing plate (9), and the pressing plate ( 9) is provided with a groove on its lower surface, the pressing plate (9) and the second base vertical connecting block (15) are connected by bolts; one of the surfaces of the clamping ring bracket (2) is provided with a slide groove (21) along the length direction; the main body of the clamping ring (4) is a circular ring body (41), and a horizontal second clamping ring horizontal connecting block (43) and a horizontal third clamping ring horizontal connecting block (45) are symmetrically provided on both sides of the circular ring body (41); a second protrusion (46) is provided at the end of the third clamping ring horizontal connecting block (45), and the second clamping ring horizontal connecting block The end of the annular body (43) is provided with a first protrusion (44); a horizontal first clamping ring horizontal connecting block (42) is fixedly connected between the second clamping ring horizontal connecting block (43) and the third clamping ring horizontal connecting block (45) on the side of the annular body (41); the sliding pressing block (5) is composed of a sliding block (51) and a horizontal pressing block (52), the sliding block (51) is provided with a horizontal through hole (53), the horizontal pressing block (52) is arranged on the lower side of the sliding block (51), and two horizontal grooves (54) are arranged on the lower end surface of the horizontal pressing block (52); The positioning bracket (3) is arranged vertically, the upper end of the positioning bracket (3) is connected to the first clamping ring horizontal connection block (42) by bolts, and the lower end of the positioning bracket (3) is connected to the third base vertical connection block (16) by bolts; the clamping ring (4) is arranged above the base (1), the first clamping ring horizontal connection block (42) in the clamping ring (4) is arranged above the third base vertical connection block (16), and the second clamping ring horizontal connection block (43) and the third clamping ring horizontal connection block (45) are respectively arranged above the two first base horizontal connection blocks (11); the lower ends of the two clamping ring brackets (2) are respectively connected to the first base vertical connection block (12); the upper end of one of the clamping ring brackets (2) is connected to the third clamping ring horizontal connection block (16); The end of the block (45) is connected, the second protrusion (46) at the end of the third clamping ring horizontal connecting block (45) is arranged in the slide groove (21) of the clamping ring bracket (2), the upper end of another clamping ring bracket (2) is connected to the second clamping ring horizontal connecting block (43), and the first protrusion (44) at the end of the second clamping ring horizontal connecting block (43) is arranged in the slide groove (21) of the clamping ring bracket (2); the horizontal through hole (53) arranged on the sliding block (51) is sleeved on the first clamping ring horizontal connecting block (42); the outer side of the horizontal pressing block (52) on the positioning bracket (3) is provided with a horizontal sliding pressing block clamping bolt (6), and a horizontal air pipe clamping bolt (7) is arranged below the sliding pressing block clamping bolt (6) on the positioning bracket (3).

2. The brazing fixture suitable for brazing ceramic induction heating furnace according to claim 1 is characterized in that: The groove on the upper end surface of the second base vertical connection block (15) and the groove on the lower surface of the pressing plate (9) are arranged opposite to each other.

3. The brazing fixture suitable for brazing ceramic induction heating furnace according to claim 1 is characterized in that: The slide groove (21) of the clamp ring bracket (2) and the first protrusion (44) at the end of the second clamp ring horizontal connecting block (43) are clearance-matched; the slide groove (21) of the clamp ring bracket (2) and the second protrusion (46) at the end of the third clamp ring horizontal connecting block (45) are clearance-matched.

4. The brazing fixture suitable for brazing ceramic induction heating furnace according to claim 1 is characterized in that: The base (1) is circular.

5. The brazing fixture suitable for brazing ceramic induction heating furnace according to claim 1 is characterized in that: The positioning bracket (3) is in a strip shape.

6. The brazing fixture suitable for brazing ceramic induction heating furnace according to claim 1 is characterized in that: The clamping ring bracket (2) is strip-shaped.

7. The brazing fixture suitable for brazing ceramic induction heating furnace according to claim 1 is characterized in that: The end of the screw rod of the sliding pressing block clamping bolt (6) contacts the side of the horizontal pressing block (52).

8. The brazing fixture suitable for brazing ceramic induction heating furnace according to claim 1 is characterized in that: The top screw (8) is arranged in a threaded hole of the base (1), and the threaded hole passes through the base (1).

9. The brazing fixture suitable for brazing ceramic induction heating furnace according to claim 1, characterized in that: The sliding pressure block clamping bolt (6) is arranged in a horizontal threaded hole arranged on the positioning bracket (3), and a nut is arranged at the end of the sliding pressure block clamping bolt (6) outside the positioning bracket (3).

10. The brazing fixture suitable for brazing ceramic induction heating furnace according to claim 1, characterized in that: The air pipe clamping bolt (7) is arranged in a horizontal threaded hole arranged on the positioning bracket (3), and a nut is arranged at the end of the air pipe clamping bolt (7) inside the positioning bracket (3).

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