Metal heating auxiliary device

Abstract

The utility model discloses a metal heating auxiliary device, which belongs to the technical field of metal processing, and comprises a non-circular driving rod, a guide support disc, a limit support disc and a glass tube, the non-circular driving rod is driven by a driving wheel on a support frame, and a horizontally sliding sleeve is sleeved on the non-circular driving rod. A guide supporting disc and a limiting supporting disc are horizontally sleeved on the sleeve in a sliding manner; and the glass tubes sequentially penetrate through guide holes of the guide supporting disc and are propped against positioning holes of the limiting supporting disc to be fixed. The problem that metal is heated unevenly in the metal heat treatment process is effectively solved, and the metal heat treatment efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metal processing, in particular to a clamping device for metal heat treatment. Background Technique

[0002] Metal heat treatment is a process that changes the microstructure and mechanical properties of metal materials by controlling the heating and cooling processes. Generally, it does not change the shape and overall chemical composition of the workpiece, but changes the internal microstructure or surface chemical composition of the workpiece through the heating and cooling processes, thereby endowing the workpiece with different service performances. Through metal heat treatment, not only can the physical and mechanical properties of metals be improved, but also the performance of metals in various industrial applications can be enhanced. It is one of the indispensable important processes in modern manufacturing. However, in the current metal heat treatment process, resistance furnaces, flame furnaces, etc. are usually used for heating. During the heating process, metal materials are stacked, resulting in stronger heating of the outer layer of metal and weaker heating of the inner layer of metal, thus leading to uneven distribution of metal hardness, strength, and toughness, causing local strength deficiency or excessive brittleness. When a special atmosphere environment is required for metal heat treatment, it may also cause insufficient metal treatment, affecting the metal heat treatment effect. However, achieving uniform heating is not as easy as imagined. On the one hand, the heating and temperature control capabilities of different parts inside the heating tool are not consistent, and in reality, heating tools are expensive and not easy to replace; on the other hand, although the decentralized placement method can ensure temperature uniformity to a certain extent, the temperature difference between the metal atmosphere contact surface and the heating tool contact surface cannot be ignored. At the same time, due to the limitation of the internal space of the heating tool, the decentralized placement method often has low efficiency. Especially for metals that are highly sensitive to temperature and even minor temperature changes will affect the alloy phase transformation behavior and thus affect their final performance (such as nickel and titanium), achieving uniform, efficient, and convenient metal heating is crucial for the success of the metal heat treatment process. Summary of the Invention

[0003] Aiming at the problems existing in the prior art, the present invention fully considers the design requirements during the metal heat treatment heating process, provides a metal heating auxiliary device, effectively solves the problem of uneven heat treatment during the metal heat treatment process, and is particularly suitable for the heat treatment of nickel-titanium metals with high temperature sensitivity, avoiding the problem of insufficient treatment of nickel-titanium metals caused by uneven heating in traditional heat treatment.

[0004] The present invention provides a metal heating auxiliary device including a support driving assembly, a fixing assembly, and a glass tube.

[0005] A support hole is opened in the upper middle part of the support frame, and a driving wheel is installed in the support hole in a matching manner. A plug hole for cooperating with a non-circular driving rod is opened at the center of the driving wheel, and both ends of the non-circular driving rod are respectively inserted into the plug holes at the centers of the driving wheels on the two support frames.

[0006] The fixing component includes a sleeve, a guiding support disc and a limiting support disc. The sleeve matching with the non-circular driving rod is horizontally and slidably sleeved on the non-circular driving rod, and at least one guiding support disc and one limiting support disc are horizontally and slidably sleeved on the sleeve.

[0007] The guiding support disc includes a guiding disc socket hole and guiding holes. The shape of the guiding disc socket hole matches that of the sleeve. The guiding support disc is horizontally and slidably sleeved on the sleeve through the guiding disc socket hole, and the guiding holes are evenly distributed around the guiding disc socket hole in a concentric circle shape.

[0008] The guiding holes include a guiding guiding part and a guiding support part. According to the insertion direction of the glass tube, the guiding holes are successively a frustum-shaped guiding guiding part with a gradually decreasing diameter and a cylindrical guiding support part located in the remaining part of the guiding hole.

[0009] The limiting support disc includes a limiting disc socket hole and positioning holes. The shape of the limiting disc socket hole matches that of the sleeve. The limiting support disc is horizontally and slidably sleeved on the sleeve through the limiting disc socket hole, and the positioning holes are evenly distributed around the limiting disc socket hole in a concentric circle shape. The guiding holes on the guiding support disc and the positioning holes on the limiting support disc are horizontally coaxially corresponding with the non-circular driving rod as the axis.

[0010] The positioning holes include a positioning guiding part, a positioning support part, a limiting part and a net. The positioning holes are successively a frustum-shaped positioning guiding part with a gradually decreasing diameter, a cylindrical positioning support part, a frustum-shaped limiting part with a gradually decreasing diameter and a net closing the bottom of the positioning hole along the insertion direction of the glass tube.

[0011] When in use, the glass tube successively passes through the guiding holes of the guiding support disc, and finally the bottom end reaches the positioning holes of the limiting support disc to complete the limiting and fixing.

[0012] Among them, the material of the support frame can be selected from any one of stainless steel, ceramic material and silicon carbide material.

[0013] Among them, the driving wheel can be selected from any one of a ceramic driving wheel, a superalloy driving wheel, a high-temperature resistant steel driving wheel, a silicon carbide driving wheel, an alumina driving wheel, a silicon aluminum fiber composite driving wheel and a zirconia driving wheel.

[0014] The driving function of the driving wheel can be obtained by connecting with an external power device of the heating system. The specific connection method and the external power device are not limited. For example, it can be connected with the external power device of the heating system through a connecting device such as a connecting rod, and different external power devices and / or connecting devices can be conveniently selected according to requirements to achieve driving.

[0015] Among them, the insertion holes at both ends of the driving wheel and the non-circular driving rod are designed with frosting to increase the friction between the driving wheel and the non-circular driving rod and avoid slipping.

[0016] Among them, the cross-section of the non-circular driving rod can be any one of a regular polygon and an ellipse.

[0017] Among them, the number of sides of the regular polygon cross-section of the non-circular driving rod is less than.

[0018] Among them, the material of the non-circular driving rod is selected from any one of alumina, zirconia, nickel-based alloy, titanium carbide, and ceramic matrix composite.

[0019] Among them, the material of the sleeve is selected from any one of alumina, zirconia, nickel-based alloy, titanium carbide, and ceramic matrix composite.

[0020] Among them, there is one or more guiding support disks that horizontally slide and sleeve on the sleeve.

[0021] Among them, the socket holes and at the guiding support disk and the limiting support disk are frosted designs to increase the friction between the guiding support disk and the limiting support disk and the sleeve, and ensure the stable rotation of the fixing component.

[0022] Among them, the guiding guiding part and the positioning guiding part of the guiding hole and the positioning hole are polished designs to facilitate better guiding for the glass tube.

[0023] Among them, the guiding support part and the positioning support part of the guiding hole and the positioning hole adopt frosted designs to prevent the glass tube from rotating and slipping on its own.

[0024] Among them, the limiting part of the positioning hole adopts a frosted design to facilitate better fixing of the glass tube.

[0025] Among them, the material of the netting of the positioning hole is selected from any one of ceramic fiber, alumina fiber, alumina-silicate fiber, zirconia fiber, aluminosilicate fiber, and basalt fiber.

[0026] Among them, the material of the guiding support disk and the limiting support disk is selected from any one of alumina, zirconia, nickel-based alloy, titanium carbide, and ceramic matrix composite.

[0027] Among them, the guiding holes on the guiding support disk are from to multiple.

[0028] Among them, the number of positioning holes on the limiting support disk is from to multiple.

[0029] Among them, the guiding holes evenly distributed in a concentric circle around the socket hole of the guiding disk can have various sizes. The guiding holes centered on the socket hole of the guiding disk are arranged in a staggered manner of different sizes, arranged from small to large or from large to small according to the size of the guiding holes.

[0030] Among them, the guiding holes around the socket hole of the guiding disk can be distributed on multiple concentric circles centered on the socket hole of the guiding disk.

[0031] Among them, the material of the glass tube can also be selected from any one of quartz glass, borosilicate glass, aluminosilicate glass, high-aluminum glass, and ceramic glass.

[0032] Compared with the prior art, the present invention has at least the following beneficial effects:

[0033] The metal heating auxiliary device provided by the present invention drives the glass tube on the guiding support disk and the limiting support disk to rotate through a non-circular driving rod, which can ensure that heat energy is evenly distributed on the metal material, thereby achieving a more uniform heat treatment effect. In particular, it has better adaptability to nickel-titanium metal with strong high-temperature sensitivity.

[0034] Through the design of multiple positioning holes and multiple apertures, the utility model improves the efficiency and flexibility of heat treatment, reduces energy consumption, and improves the economic efficiency of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0036] Figure 1 is a schematic structural diagram of the metal heating auxiliary device.

[0037] Figure 2 is a schematic structural diagram of the horizontal cross-section of the guiding hole.

[0038] Figure 3 is a schematic structural diagram of the horizontal cross-section of the positioning hole.

[0039] Among them, 11 - support frame; 12 - driving wheel; 13 - support hole; 14 - non-circular driving rod; 15 - insertion hole; 21 - sleeve; 22 - guiding support disk; 221 - guiding disk socket hole; 222 - guiding hole; 2221 - guiding guiding part; 2222 - guiding support part; 23 - limiting support disk; 231 - limiting disk socket hole; 232 - positioning hole; 2321 - positioning guiding part; 2322 - positioning support part, 2323 - limiting part; 2324 - net; 4 - glass tube. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below in conjunction with the drawings. Embodiments of the present utility model are given, but the scope of the present utility model is not limited thereby.

[0041] The present utility model discloses a heating auxiliary device for metal pipes.

[0042] A metal heating auxiliary device includes a support driving component, a fixing component, and a glass tube 4. The support driving component is provided with a non-circular driving rod 14 for driving the fixing component and the glass tube 4 to rotate around an axis.

[0043] As Figure 1 , the support driving component includes a support frame 11, a driving wheel 12, and a non-circular driving rod 14. A support hole 13 is provided in the upper middle part of the support frame 11. The driving wheel 12 is fitted and installed in the support hole 13. A socket hole 15 for cooperating with the non-circular driving rod 14 is provided at the center of the driving wheel 12. Both ends of the non-circular driving rod 14 are respectively inserted into the socket holes 15 at the centers of the driving wheels 12 on two support frames 11. During auxiliary heating, the driving wheel 21 drives the non-circular driving rod 22 to rotate uniformly, so as to realize uniform heating of the metal material.

[0044] As Figure 1 , the fixing component includes a sleeve 21, a guiding support disc 22, and a limiting support disc 23. The sleeve 21 matching the non-circular driving rod 14 is horizontally slidably sleeved on the non-circular driving rod 14. At least one guiding support disc 22 and one limiting support disc 23 are horizontally slidably sleeved on the sleeve 21. The design of the horizontal sliding sleeve of the sleeve 21 helps to load multiple fixing components and glass tubes 4 on the non-circular driving rod 14 for simultaneous heating, thereby effectively improving the heating efficiency. The design of the horizontal sliding sleeve of the guiding support disc 22 and the limiting support disc 23 provides a flexible adjustment space for the length of the glass tube. The user can adjust the distance between the guiding support disc 22 and the limiting support disc 23 according to the actual condition of the glass tube, so as to expand the application range. Guiding holes 222 and positioning holes 232 are respectively provided on the guiding support disc 22 and the limiting support disc 23. The guiding holes 222 and the positioning holes 232 are concentrically distributed with the rotation axis of the non-circular driving rod 14 as the center, and the guiding holes 222 and the positioning holes 232 can be coaxially corresponding in the horizontal direction for detachably fixing the glass tube 4.

[0045] As Figure 1 , the guiding support disc 22 includes a guiding disc socket hole 221 and guiding holes 222. The shape of the guiding disc socket hole 221 matches that of the sleeve 21. The guiding support disc 22 is horizontally slidably sleeved on the sleeve 21 through the guiding disc socket hole 221. The guiding holes 222 are uniformly distributed in a concentric circle around the guiding disc socket hole 221.

[0046] As Figure 2 , the guiding holes 222 include a guiding guiding part 2221 and a guiding support part 2222. According to the insertion direction of the glass tube, the guiding hole is successively a frustum-shaped guiding guiding part 2221 with a gradually decreasing diameter and a cylindrical guiding support part 2222 located in the remaining part of the guiding hole 222. The frustum-shaped design of the guiding guiding part 2221 is beneficial to the convenient insertion of the glass tube 4.

[0047] As Figure 1 , the limit support disk 23 includes a limit disk socket hole 231 and a positioning hole 232. The shape of the limit disk socket hole 231 matches that of the sleeve 21. The limit support disk 23 is horizontally slidably sleeved on the sleeve 21 through the limit disk socket hole 231. The positioning holes 232 are evenly distributed around the sleeve 23 in a concentric circle shape. The guiding holes 222 on the guiding support disk 22 and the positioning holes 232 on the limit support disk 23 can be coaxially corresponding in the horizontal direction, so that the glass tube 4 can sequentially pass through the guiding holes 222 on the guiding support disk 22 and finally reach the positioning hole 231 of the limit support disk 23 at the end to realize the fixation of the glass tube 4.

[0048] As Figure 3 , the positioning hole 232 includes a positioning guiding portion 2321, a positioning support portion 2322, a limiting portion 2323 and a netting 2324. The positioning hole 222 is successively a frustum-shaped positioning guiding portion 2321 with a gradually decreasing diameter, a cylindrical positioning support portion 2322, a frustum-shaped limiting portion 2323 with a gradually decreasing diameter, and a netting 2324 closing the bottom of the positioning hole along the insertion direction of the glass tube 4. The design of the positioning guiding portion 2321 is conducive to the convenient insertion of the glass tube 4, while the frustum design of the limiting portion 2323 with a gradually decreasing diameter realizes the limiting fixation of the glass tube 4 in a gentle manner. The existence of the gauze 2324 further prevents the glass tube from exceeding the predetermined position, thereby more stably realizing the fixation of the glass tube.

[0049] As Figure 1 , when the glass tube 4 is in use, it sequentially passes through the guiding holes of the guiding support disk 22, and finally the bottom end reaches the positioning hole 232 of the limit support disk 23 to complete the limiting fixation.

[0050] As some optimized designs, the material of the support frame 11 can be selected from any one of stainless steel, ceramic material, and silicon carbide material.

[0051] As some optimized designs, the driving wheel 12 is selected from any one of a ceramic driving wheel, a superalloy driving wheel, a high-temperature resistant steel driving wheel, a silicon carbide driving wheel, an alumina driving wheel, a silicon aluminum fiber composite driving wheel, and a zirconia driving wheel.

[0052] The driving effect of the driving wheel 12 can be obtained by connecting with an external power device of the heating system. The specific connection method and the external power device are not limited. For example, it can be connected with an external power device of the heating system through a connecting device such as a connecting rod, and different external power devices and / or connecting devices can be conveniently selected according to needs to realize driving.

[0053] As some optimized designs, the insertion holes 15 in the driving wheel 12 and both ends of the non-circular driving rod 14 are frosted designs to increase the friction force between the driving wheel 12 and the non-circular driving rod 14 and avoid slipping.

[0054] As some optimized designs, the cross-section of the non-circular drive rod 14 can be any one of a regular polygon and an ellipse.

[0055] As some optimized designs, the number of sides of the regular polygon cross-section of the non-circular drive rod 14 is less than 15.

[0056] As some optimized designs, the material of the non-circular drive rod 14 is selected from any one of alumina, zirconia, nickel-based alloy, titanium carbide, and ceramic matrix composite.

[0057] As some optimized designs, the material of the sleeve 21 is selected from any one of alumina, zirconia, nickel-based alloy, titanium carbide, and ceramic matrix composite.

[0058] As some optimized designs, there is one or more guiding support disks 22 that horizontally slide and sleeve on the sleeve 21. The design of multiple guiding support disks 22 can provide more stable support for the glass tube 4. Especially when the length of the glass tube 4 is relatively long, the design with multiple guiding support disks 22 existing simultaneously can effectively provide support and avoid the occurrence of the self-rotation phenomenon of the glass tube 4.

[0059] As some optimized designs, the socket holes 221 and 231 of the guiding support disk 22 and the limiting support disk 23 are frosted designs to increase the friction between the guiding support disk 22 and the limiting support disk 23 and the sleeve 21, and ensure that the guiding support disk 22 and the limiting support disk 23 remain relatively fixed with respect to the sleeve 21 during rotation.

[0060] As some optimized designs, the guiding and guiding parts 2221 and the positioning and guiding parts 2321 of the guiding holes 222 and the positioning holes 232 are polished designs to facilitate better guiding for the glass tube 4.

[0061] As some optimized designs, the guiding support parts 2222 and the positioning support parts 2322 of the guiding holes 222 and the positioning holes 232 adopt frosted designs to prevent the glass tube 4 from slipping during rotation.

[0062] As some optimized designs, the limiting part 2323 of the positioning hole 232 adopts a frosted design to facilitate better fixing of the glass tube 4.

[0063] As some optimized designs, the material of the netting 2324 of the positioning hole 232 is selected from any one of ceramic fiber, alumina fiber, alumina-silicate fiber, zirconia fiber, aluminosilicate fiber, and basalt fiber.

[0064] As some optimized designs, the materials of the guiding support disk 22 and the limiting support disk 23 are selected from any one of alumina, zirconia, nickel-based alloy, titanium carbide, and ceramic matrix composite.

[0065] As some optimized designs, the number of guiding holes 222 on the guiding support plate 22 is one or more.

[0066] As some optimized designs, the number of positioning holes 232 on the limiting support plate 23 is one to more.

[0067] As some optimized designs, the guiding holes 222 around the guiding disk socket hole 221 and the corresponding 232 positioning holes can be designed to be distributed on concentric circles at multiple different radius positions with the guiding disk socket hole 221 as the center. The distribution design of the multiple concentric circles greatly improves the heating efficiency of the metal heating auxiliary device, enhances the thermal energy utilization efficiency, reduces the energy consumption, and at the same time can also improve the heating uniformity of the metal material, avoid the thermal stress concentration caused by uneven heating, and thus improve the quality and efficiency of metal processing, providing a more precise and efficient solution for the heat treatment process of metal materials.

[0068] As some optimized solutions, the guiding holes 222 on the concentric circles at different radius positions and the corresponding 232 positioning holes can have different hole radii to match the glass tubes 4 of different radius specifications. This design not only meets the requirements for processing metal materials of different sizes, but also enables users to select the most suitable glass tube 4, guiding socket plate and limiting socket plate for the processing target according to the material to be processed, making the treatment of metal materials more uniform.

[0069] As some optimized solutions, the guiding holes 222 on the concentric circles at the same radius position and the corresponding 232 positioning holes can have the same or different hole radii to match the glass tubes 4 of different radius specifications. Users can further optimize the processing effect and improve the uniformity and quality of material treatment.

[0070] As some optimized solutions, the arrangement of the guiding holes 222 with different hole radii on the concentric circles at different radius positions and the corresponding 232 positioning holes is not limited. Users can select the guiding support plate 22 and the corresponding limiting support plate 23 with different hole arrangement methods according to the actual use situation. For example, the guiding support plate 22 and the corresponding limiting support plate 23 can be arranged in the way that the outer circle is large and the inner circle is small, or the guiding support plate 22 and the corresponding limiting support plate 23 with the guiding holes of the inner and outer circles staggered in size.

[0071] As some optimization solutions, for the concentric circles at the same radius position, the arrangement of the guiding holes 222 with different radii and the corresponding positioning holes 232 is not limited. Users can select the guiding support plate 22 with different hole arrangements and the corresponding limiting support plate 23 according to the actual usage situation. For example, the guiding support plate 22 and the corresponding limiting support plate 23 with the apertures of the guiding holes 222 arranged in ascending order or the guiding support plate 22 and the corresponding limiting support plate 23 with the apertures of the guiding holes 222 arranged staggeredly can be selected.

[0072] As some optimization solutions, the material of the glass tube 4 can also be selected from any one of quartz glass, borosilicate glass, aluminosilicate glass, high-aluminum glass, and ceramic glass.

[0073] Based on the above, when using the metal heating auxiliary device to assist in metal heating, the metal is loaded into the glass tube 4 and fixed on the guiding support plate 22 and the limiting support plate 23. After starting the heating, first, the driving wheel 12 drives the non-circular driving rod 14 to rotate. The non-circular driving rod 14 drives the sleeve 21 and the guiding support plate 22 and the limiting support plate 23 sleeved on the sleeve 21 to rotate. The rotation of the guiding support plate 22 and the limiting support plate 23 drives the glass tube 4 sleeved on the guiding support plate 22 and the limiting support plate 23 to rotate around the sleeve as the center, so as to ensure the uniform heating of the metal material.

[0074] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and deformations to the above embodiments within the scope of the present invention. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

Claims

1. A metal heating auxiliary device, characterized in that: The invention comprises a support driving component, a fixing component and a glass tube (4); the support driving component is provided with a non-circular driving rod (14) for driving the fixing component and the glass tube (4) to rotate around an axis; the fixing component comprises a sleeve (21) horizontally slidably sleeved on the non-circular driving rod (14), and at least one guide support plate (22) and a position limiting support plate (23) horizontally slidably sleeved on the sleeve (21); a guide hole (222) and a positioning hole (232) are respectively provided on the guide support plate (22) and the position limiting support plate (23); the guide hole (222) and the positioning hole (232) are both distributed in concentric circles with the rotation axis of the non-circular driving rod (14) as the axis center, and the guide hole (222) and the positioning hole (232) can correspond coaxially in the horizontal direction, and are used for detachably fixing the glass tube (4).

2. The metal heating auxiliary device according to claim 1, characterized in that: The guide hole (222) comprises a guide portion (2221) and a guide support portion (2222). According to the glass tube insertion direction, the guide hole is sequentially a truncated cone-shaped guide portion (2221) with a gradually decreasing diameter and a cylindrical guide support portion (2222) located in the remaining portion of the guide hole (222).

3. The metal heating auxiliary device according to claim 1, characterized in that: The positioning hole (232) comprises a positioning guide portion (2321), a positioning support portion (2322), a limiting portion (2323) and a blocking net (2324), wherein the positioning hole (232) comprises, in order along the insertion direction of the glass tube (4), a truncated cone-shaped positioning guide portion (2321) with a gradually decreasing diameter, a cylindrical positioning support portion (2322), a truncated cone-shaped limiting portion (2323) with a gradually decreasing diameter and a blocking net (2324) that closes the bottom of the positioning hole.

4. The metal heating auxiliary device according to claim 1, characterized in that: There are one or more guide support plates (22) which are horizontally slidably sleeved on the sleeve (21).

5. The metal heating auxiliary device according to claim 1, characterized in that: The number of the guide holes (222) on the guide support plate (22) is one or more, and the number of the positioning holes (232) on the position-limiting support plate (23) is one or more.

6. The metal heating auxiliary device according to claim 1, characterized in that: The guide holes (222) around the guide disk sleeve hole (221) and the corresponding positioning holes (232) are distributed on a plurality of concentric circles at different radius positions with the guide disk sleeve hole (221) as the center; The guide holes (222) and the corresponding positioning holes (232) on the concentric circles at different radial positions have different hole radii to match glass tubes (4) with different radius specifications; The guide holes (222) and the corresponding positioning holes (232) on the concentric circles at the same radial position are selected to have the same or different hole radii to match glass tubes (4) with different radius specifications.

7. The metal heating auxiliary device according to claim 1, characterized in that: The support drive assembly further comprises a support frame (11), a drive wheel (12) and a non-circular drive rod (14); a support hole (13) is provided in the middle and upper part of the support frame (11); the drive wheel (12) is matched and installed in the support hole (13); and a plug-in hole (15) matching with the non-circular drive rod (14) is provided at the center of the drive wheel (12).

8. The metal heating auxiliary device according to claim 1, characterized in that: The cross section of the non-circular driving rod (14) is selected from any one of a regular polygon and an ellipse; The number of polygonal sides of the regular polygonal cross section of the non-circular driving rod (14) is less than 15.

9. The metal heating auxiliary device according to claim 7, characterized in that: The insertion hole (15) in the driving wheel (12) and both ends of the non-circular driving rod (14) are frosted; The sleeve holes (221) and (231) of the guide support plate (22) and the limiting support plate (23) are frosted, and the guide guide parts (2221) and the positioning guide parts (2321) of the guide hole (222) and the positioning hole (232) are polished; The guide support portion (2222) and the positioning support portion (2322) of the guide hole (222) and the positioning hole (232) are designed with frosting, and the limiting portion (2323) of the positioning hole (232) is designed with frosting.

10. The metal heating auxiliary device according to claim 7, characterized in that: The material of the support frame (11) is selected from any one of stainless steel, ceramic material and silicon carbide material; The driving wheel (12) is selected from any one of a ceramic driving wheel, a high temperature alloy driving wheel, a high temperature resistant steel driving wheel, a silicon carbide driving wheel, an alumina driving wheel, an aluminum silicate fiber composite driving wheel, and a zirconium oxide driving wheel; The material of the non-circular driving rod (14) is selected from any one of aluminum oxide, zirconium oxide, nickel-based alloy, titanium carbide, and ceramic-based composite materials; The material of the sleeve (21) is selected from any one of aluminum oxide, zirconium oxide, nickel-based alloy, titanium carbide, and ceramic-based composite materials; The material of the blocking net (2324) of the positioning hole (232) is selected from any one of ceramic fiber, alumina fiber, alumina-silicate fiber, zirconia fiber, aluminum silicate fiber, and basalt fiber; The material of the guide support plate (22) and the limit support plate (23) is selected from any one of aluminum oxide, zirconium oxide, nickel-based alloy, titanium carbide, and ceramic-based composite materials; The material of the glass tube (4) is selected from any one of quartz glass, borosilicate glass, aluminosilicate glass, high-aluminum glass, and ceramic glass.

Images