Silicon carbide rod cold end resistance measuring table

Abstract

The utility model relates to the technical field of silicon carbide resistance testing, and discloses a silicon carbide rod cold end resistance testing table which comprises an insulation supporting table, a sliding rail is arranged at the top end of the insulation supporting table in the length direction of the insulation supporting table, a driving air cylinder is adjustably arranged on the sliding rail, and a movable supporting seat is arranged at the telescopic end of the driving air cylinder. The movable supporting seat is arranged on the sliding rail in a sliding manner; a fixed supporting seat is arranged at the end, away from the driving air cylinder, of the movable supporting seat, and a conductive seat is arranged on the end face, opposite to the movable supporting seat, of the fixed supporting seat. The conductive seat is connected with electric control equipment through a wire; the silicon carbide rod cold end resistance measuring device can be used for cold end resistance measurement of silicon carbide rods of various lengths, and is wide in application range, simple, convenient and fast to operate and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of silicon carbide resistance testing technology, and in particular to a silicon carbide rod cold end resistance measuring station. Background Technology

[0002] A silicon carbide rod is a rod-shaped heating element made of silicon carbide, commonly used in high-temperature industrial furnaces. The resistance of a silicon carbide rod increases with temperature. Therefore, during manufacturing, different resistance values ​​are typically set at the hot and cold ends of the rod to maintain a stable resistance at high temperatures. Since the cold end is usually connected to the electrode and installed externally, it needs good conductivity and mechanical strength to reduce energy consumption. Therefore, the resistance of the cold end of the silicon carbide rod is often measured during processing. However, existing cold end resistance measurement devices have limited applicability to silicon carbide models, making it difficult to meet the needs of cold end resistance measurement for silicon carbide rods of various lengths. Furthermore, due to the lack of a positioning mechanism, the length of the silicon carbide rod needs to be accurately measured during resistance measurement to ensure it can be placed on the measuring device, resulting in cumbersome and inefficient operation. Utility Model Content

[0003] The purpose of this invention is to provide a cold-end resistance measurement platform for silicon carbide rods, which can meet the cold-end resistance measurement needs of silicon carbide rods of various lengths. It has a wide range of applications, is easy and quick to operate, and is highly practical.

[0004] The present invention adopts the following technical solution:

[0005] A cold-end resistance measuring stage for silicon carbide rods includes an insulating support platform. A slide rail is provided on the top of the insulating support platform along its length. A drive cylinder is adjustablely mounted on the slide rail. A movable support seat is provided at the telescopic end of the drive cylinder, and the movable support seat is slidably mounted on the slide rail. A fixed support seat is provided at the end of the movable support seat away from the drive cylinder. A conductive seat is provided on the end face of the fixed support seat opposite to the movable support seat. The conductive seat is connected to an electrical control device via a wire.

[0006] Preferably, both the driving cylinder and the bottom of the movable support are provided with sliding seats, which are slidably mounted on the slide rail; a positioning element is provided on the sliding seat where the driving cylinder is located.

[0007] Preferably, the slide rail is provided with slide grooves on both sides, and the slide seat is a U-shaped structure with sliders matching the slide grooves symmetrically arranged on its inner side.

[0008] Preferably, the positioning element includes a positioning plate disposed on the sliding seat, a positioning pin is movably disposed on the positioning plate, and the top end of the slide rail is provided with positioning holes at intervals along its length that match the positioning pin.

[0009] Preferably, the positioning member comprises a positioning plate arranged on the sliding seat, an operating rod is arranged through the positioning plate, a supporting block is connected to the bottom end of the operating rod, a driving block is connected to the bottom end of the supporting block through a connecting rod, the driving block is movably arranged in a containing groove of a fixing block, a positioning block is elastically arranged in the containing groove, and the end faces of the driving block and the positioning block in contact with each other are all inclined slopes, a positioning groove is formed in the top end of the sliding rail along the length direction of the sliding rail, a T-shaped sliding groove is formed in the bottom end of the positioning groove, a T-shaped sliding block is arranged on the top end of the fixing block, and positioning teeth are arranged on the opposite side walls of the positioning groove and the positioning block and are in meshing connection.

[0010] Preferably, the limiting mechanism comprises a guide rod arranged on the top end of the fixing block, two circular truncated cone-shaped positioning bosses are symmetrically and spacedly arranged on the guide rod, the upper positioning boss is fixedly connected with the guide rod, and the lower positioning boss is slidably arranged on the guide rod; a guide groove is arranged in the supporting block, and positioning bosses are elastically arranged on the supporting block on the two sides of the guide groove; and the opposite end faces of the two positioning bosses are all arranged as slopes with the same slope of the positioning bosses.

[0011] Preferably, two supporting plates are arranged at the end of the moving supporting seat away from the driving cylinder, one of the supporting plates is fixedly connected with the moving supporting seat, and the other supporting plate is arranged on the insulating supporting table close to the fixed supporting seat.

[0012] Preferably, a supporting groove is arranged at the top end of the supporting plate.

[0013] Preferably, the supporting groove is in an arc structure.

[0014] Preferably, a containing groove is arranged below the insulating supporting table.

[0015] Compared with the prior art, the utility model has the advantages that: the utility model discloses the sliding rail is arranged on the insulating supporting table, and the cylinder is adjustably arranged on the sliding rail, so that the position of the cylinder can be adjusted to meet the positioning and clamping of the silicon carbide rods with different lengths, thereby expanding the application range of the utility model; in addition, the silicon carbide rod can be quickly and stably clamped between the two conductive seats by controlling the working of the cylinder, and the operation is simple, fast, high in flexibility and strong in practicality. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the embodiment one of the utility model;

[0017] Figure 2 It is a structural schematic view of the embodiment one of the utility model; Figure 1 It is an enlarged view of A in the middle;

[0018] Figure 3 It is a structural schematic diagram of the second embodiment of the application;

[0019] Figure 4 It is a sectional view of the positioning member in the second embodiment of the application;

[0020] Figure 5 It is Figure 3 An enlarged view of B. DETAILED DESCRIPTION

[0021] The utility model will be clearly and completely explained in combination with the drawings and embodiments:

[0022] As Figure 1 And Figure 3 The utility model discloses a silicon carbide rod cold end resistance measuring platform, including insulating support table 1, the insulating support table 1 top end is provided with slide rail 2 along its length direction, the slide rail 2 is adjustably provided with drive cylinder 3, and the telescopic end of drive cylinder 3 is provided with mobile support seat 4, and mobile support seat 4 is slidably arranged on slide rail 2;The end of mobile support seat 4 away from drive cylinder 3 is provided with fixed support seat 5, and fixed support seat 5 is provided with conducting seat 6 on the opposite end face of mobile support seat 4;Conducting seat 6 is connected with electric control equipment 7 through wire, and electric control equipment 7 is general resistance measuring equipment in prior art, since the utility model does not improve and does not belong to the protection scope of the utility model, therefore does not expand the description of electric control equipment 7.Use, according to the length of silicon carbide rod, adjusts the position of drive cylinder 3 on slide rail 2, and fixes drive cylinder 3, starts drive cylinder 3 and clamps silicon carbide rod between two conducting seats 6, then sets relevant data to electric control equipment 7, and the operation is simple and quick, can satisfy the test use of various silicon carbide rods, and the structure is simple, and the application range is wide, and the practicality is strong.

[0023] Further, the bottom end of drive cylinder 3 and mobile support seat 4 is provided with sliding seat 8, and the sliding seat 8 is U-shaped structure, and symmetrically provided with sliding block in the inside, and the both sides of slide rail 2 are provided with sliding groove 9 for the sliding block to slide.

[0024] Further, two supporting plates 10 are arranged at the end of the moving support 4 away from the driving cylinder 3, one of which is fixedly connected with the moving support 4, and the other is arranged on the insulating support table close to the fixed support 5, and the supporting plates 10 are used to support the silicon carbide rod, and the silicon carbide rod can be directly placed on the supporting plates 10 during resistance measurement, and then the cylinder is operated to clamp and position the silicon carbide rod, thereby improving the convenience of operation. The arc-shaped supporting grooves 11 are arranged on the supporting plates 10 to better support the silicon carbide rod. In addition, the storage groove 33 is arranged below the insulating support table 1 in the embodiment, which is used for temporary storage of articles, thereby improving the space utilization of the insulating support table 1.

[0025] Embodiment one

[0026] As shown in Figure 1 and Figure 2 , the positioning member in the embodiment includes a positioning plate 12 arranged on the sliding seat 8, the positioning plate 12 movably arranged with a positioning pin 13, and the top end of the sliding rail 2 is arranged with a positioning hole 14 matched with the positioning pin 13 along the length direction. In use, the positioning operation of the driving cylinder 3 can be realized by inserting the positioning pin 13 passing through the positioning plate 12 into the positioning hole 14, so as to ensure the stability of the driving cylinder 3 during operation; the position adjustment of the driving cylinder 3 can be realized by arranging the positioning pin 13 in different positioning holes 14, and the clamping and fixing of silicon carbide rods of various lengths can be satisfied under the cooperation of the driving cylinder 3 itself stroke, thereby completing the resistance measurement of the silicon carbide rod, which is simple in structure, easy to operate and high in practicability.

[0027] Embodiment two

[0028] As shown in Figures 3 to 5As shown, the positioning member in the embodiment can make the position adjustment of the driving cylinder more accurate compared with the positioning member in the first embodiment; the positioning member comprises a positioning plate 12 arranged on the sliding seat 8, an operating rod 15 is arranged through the positioning plate 12, a supporting block 16 is connected to the bottom end of the operating rod 15, a driving block 18 is connected to the bottom end of the supporting block 16 through a connecting rod 17, the driving block 18 is movably arranged in a containing groove 20 of a fixing block 19, a positioning block 22 is elastically arranged in the containing groove 20 through a buffer spring 21, the positioning block 22 is in an I-shaped structure, the buffer spring 21 is sleeved at a position with a smaller diameter in the middle of the positioning block 22, and one end is fixedly connected with the inner wall of the containing groove 20; the end faces of the driving block 18 and the positioning block 22 in contact are all inclined slopes; a positioning groove 23 is formed in the length direction of the top end of the slide rail 2, the width of the positioning groove 23 is greater than the width of the fixing block 19, and mutually meshing positioning teeth 24 are arranged on the opposite side walls of the positioning groove 23 and the positioning block 22; a T-shaped sliding groove 25 is arranged at the bottom of the positioning groove 23, a T-shaped sliding block 26 is arranged at the top of the fixing block 19, and the sliding block 26 is slidably arranged in the sliding groove 25; a limiting mechanism is arranged between the supporting block 16 and the fixing block 19. When the driving cylinder 3 needs to be positioned, the supporting block 16 is pushed downward by pressing the operating rod 15 downward, which drives the driving block 18 to move downward and pushes the positioning block 22 to move out of the containing groove 20 and contact with the positioning teeth 24 on the inner wall of the positioning groove 23, so that the positioning operation is completed, and the supporting block 16 pressed downward is limited and fixed by the limiting mechanism.

[0029] The limiting mechanism comprises a guide rod 27 arranged at the top end of the fixed block 19, two circular-tapered positioning bosses 28 symmetrically and spacedly arranged on the guide rod 27, wherein the upper positioning boss 28 is fixedly connected with the guide rod 27, and the lower positioning boss 28 is slidingly arranged on the guide rod 27; the support block 16 is provided with a guide groove 29, the support block 16 on both sides of the guide groove 29 is provided with a buffer groove 30, the buffer groove 30 is elastically provided with a positioning block 32 through a positioning spring 31, the opposite end faces of the two positioning blocks 32 are all provided with a slope face with the same slope as that of the positioning boss 28, and the distance between the two positioning blocks 32 in the initial state matches the diameter of the smallest part of the top end of the positioning boss 28. In the working process, the downward pressing of the operating rod 15 drives the downward movement of the support block 16, at this time, the positioning block 32 moves downward along the slope face of the positioning boss 28, until the positioning block 32 moves to the space between the two positioning blocks 32 and is positioned at the bottom of the upper positioning boss 28 under the restoring force of the positioning spring 31, at this time, the two positioning blocks 22 are pushed out of the accommodating groove 20, the positioning teeth 24 on the positioning blocks 22 are engaged with the positioning teeth 24 in the positioning groove 23 to complete the positioning operation on the driving cylinder 3; in the embodiment, the positioning teeth 24 are arranged with a certain length in the horizontal direction, when the positioning teeth 24 on the positioning blocks 22 are engaged with the positioning teeth 24 in the positioning groove 23, there is still a certain movement space between the two engaged positioning teeth 24, so that when it is needed to release the positioning on the driving cylinder 3, the operating rod 15 is continuously pressed downward at this time, the positioning spring 31 on the positioning block 32 is compressed after encountering the lower positioning boss 28, the positioning block 32 moves to the side face of the lower positioning boss 28, at this time, the operating rod 15 is pulled upward under the resetting of the buffer spring 21, the two positioning blocks 32 clamp the lower positioning boss 28 and move upward, until the upper fixed positioning boss 28 is contacted, the positioning block 32 smoothly transitions to the upper positioning boss 28 under the action of the external force, and the positioning block 32 is reset by continuously pulling the operating rod 15 upward, thereby releasing the limiting of the support block 16, and the positioning blocks 22 are also reset, the positioning on the positioning plate 12 is released, at this time, the driving cylinder 3 can be moved and adjusted, the operation is simple, fast and convenient, and the practicability is high.

[0030] Finally, it should be noted that: the above only describes the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A cold end resistance measurement station for silicon carbide rods, characterized by: The insulating support table is provided with a slide rail at the top end along the length direction, and a driving cylinder is adjustably arranged on the slide rail, and the telescopic end of the driving cylinder is provided with a moving support base which is slidingly arranged on the slide rail.

2. The silicon carbide bar cold junction resistance measurement station of claim 1, wherein: The driving cylinder and the moving support base are both provided with a sliding seat which is slidingly arranged on the slide rail.

3. The silicon carbide bar cold end resistance measurement station of claim 2, wherein: The slide rail is provided with a sliding groove at both sides, and the sliding seat is of U-shaped structure and symmetrically provided with a sliding block matched with the sliding groove.

4. The silicon carbide bar cold junction resistance measurement station of claim 2, wherein: The positioning member includes a positioning plate arranged on the sliding seat, and a positioning pin movably arranged on the positioning plate.

5. The silicon carbide bar cold junction resistance measurement station of claim 2, wherein: The positioning member includes a positioning plate arranged on the sliding seat, and an operating rod penetratingly arranged on the positioning plate.

6. The silicon carbide bar cold junction resistance measurement station of claim 5, wherein: The supporting block is provided with a limiting mechanism between the supporting block and the fixed block.

7. The silicon carbide bar cold junction resistance measurement station of claim 1, wherein: The limiting mechanism includes a guide rod arranged at the top end of the fixed block, and two circular truncated cone-shaped positioning bosses are symmetrically and interval arranged on the guide rod.

8. The silicon carbide bar cold junction resistance measurement station of claim 7, wherein: The moving support base is provided with two supporting plates at the end away from the driving cylinder.

9. The silicon carbide bar cold junction resistance measurement station of claim 8, wherein: The supporting plate is provided with a supporting groove at the top end.

10. The silicon carbide bar cold junction resistance measurement station of claim 1, wherein: The supporting groove is of arc-shaped structure. The insulating support table is provided with a storage groove below.

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