A device for detecting the conductive coating of a silicon-carbon rod terminal

Abstract

The utility model is suitable for silicon -carbon rod production equipment technical field provides a kind of detection device of silicon -carbon rod terminal conductive coating, including movable conductive pedestal and placing plate, the front side surface of placing plate is provided with two clamping components for clamping silicon -carbon rod terminal, the clamping component includes mounting plate, and mounting plate is located in the front side of placing plate, and the front of mounting plate is provided with fixed clamp, and the side of fixed clamp towards placing plate axis is provided with movable clamp, and the opposite surface of fixed clamp and movable clamp upside is all provided with arc recess, and the surface of fixed clamp towards movable clamp is rotatably connected with threaded rod, the utility model is different from the operation mode of existing conductive clamp, reduces the operating procedure of silicon -carbon rod terminal clamping, improves the efficiency when in the door type silicon -carbon rod terminal conductive coating test.

Description

Technical Field

[0001] This utility model relates to the technical field of silicon carbide rod production equipment, and more specifically, it relates to a detection device for the conductive coating of silicon carbide rod terminals. Background Technology

[0002] During the heating process of silicon carbide rods, the resistivity changes non-linearly with temperature. From room temperature to around 800°C, the resistivity decreases rapidly with increasing temperature. As the temperature rises further, the resistivity begins to increase, and the increase becomes increasingly larger. Therefore, different heating temperature ranges need to be used to test the finished silicon carbide rods to ensure the stable performance of the finished products during use.

[0003] For example, a search revealed an existing patent: CN221667120U, which discloses an automatic detection device for U-shaped silicon carbide rods. This prior art uses a placement plate, a spring, a clamping block, and a conductive clamp. The spring contracts, and the gap between the edge of the placement plate and the clamping block clamps U-shaped silicon carbide rods of different sizes. The conductive clamp can directly clamp and energize both ends of different U-shaped silicon carbide rods.

[0004] However, the applicant's existing technology has the following problems when used: The existing technology uses conductive clips to hold the terminals of silicon carbide rods. However, when holding the terminals of silicon carbide rods, one hand needs to press the handle at the bottom of the conductive clip to open the upper opening. Therefore, when holding the terminals on both sides of the U-shaped silicon carbide rod in the conductive clip, the two terminals need to be clamped onto the two conductive clips in sequence. It is impossible to control the opening or closing of the conductive clips at the same time, which increases the number of operation steps in holding the terminals of silicon carbide rods and affects the efficiency and speed of testing the conductive coating of the terminals of silicon carbide rods. Summary of the Invention

[0005] To address the shortcomings of existing technologies, the purpose of this invention is to provide a device for detecting the conductive coating of silicon carbide rod terminals, which reduces the number of steps involved in clamping the terminals and improves the efficiency of testing the conductive coating of gate-type silicon carbide rod terminals.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A detection device for conductive coating on silicon carbide rod terminals includes a movable conductive base and a placement plate. Two clamping assemblies for holding the silicon carbide rod terminals are provided on the front surface of the placement plate. Each clamping assembly includes a mounting plate located on the front side of the placement plate. A fixed clamp is provided on the front of the mounting plate, and a movable clamp is provided on the side of the fixed clamp facing the axis of the placement plate. Arc-shaped grooves are formed on the upper opposing surfaces of the fixed and movable clamps. A threaded rod is rotatably connected to the surface of the fixed clamp facing the movable clamp. The movable clamp is threaded onto the outer surface of the threaded rod. A transmission rod is provided at the end of the threaded rod away from the fixed clamp. A control housing is provided on the front of the placement plate, and a rotating handle is provided on the control housing. A control shaft is provided on the lower surface of the rotating handle. The lower end of the control shaft rotatably penetrates into the control housing. A first bevel gear is provided at the lower end of the control shaft. Two mirror-shaped second bevel gears are meshed with the lower side of the first bevel gear. A transmission shaft is provided on the opposite surfaces of the two second bevel gears. The other end of the transmission shaft rotatably penetrates out of the outer surface of the control housing. The end of the transmission shaft outside the control housing is connected to the transmission rod.

[0007] The present invention is further configured such that: the movable conductive base includes a base plate, the upper surface of the base plate is provided with two conductive tracks arranged horizontally and horizontally, each of the two conductive tracks is slidably connected with a conductive slider arranged horizontally and vertically, the upper surface of the four conductive sliders is provided with mounting posts, the placement plate is installed on the upper side of the four mounting plates, and the base plate is provided with a temperature measuring mechanism.

[0008] The present invention is further configured such that: conductive blocks are embedded in the inner arc surfaces of the two arc-shaped grooves; a conductive connector is provided on the surface of the fixed clamp facing away from the movable clamp; the connecting end on the other side of the conductive connector is electrically connected to the conductive slider; the end of the conductive connector near the fixed clamp is electrically connected to the conductive block; a conductive connector is also provided between the fixed clamp and the movable clamp; and the two ends of the conductive connector are electrically connected to the conductive blocks in the two arc-shaped grooves respectively.

[0009] The present invention is further configured such that: a limiting slide bar is provided on the surface of the fixed clamp facing the movable clamp, the lower side of the movable clamp is slidably sleeved on the outer surface of the limiting slide bar, and a limiting plate is provided at the end of the limiting slide bar away from the fixed clamp.

[0010] The present invention is further configured such that: the front side of the placement plate has two sliding grooves respectively close to the two clamping components, and the surface of the mounting plate close to the sliding grooves is provided with a slider that slides in the sliding grooves.

[0011] The present invention is further configured such that: a bidirectional lead screw is provided on the side of the placement plate, the end of the bidirectional lead screw near the placement plate rotates and passes through two sliding grooves, and two opposite threaded teeth are respectively provided in the two sliding grooves; a rotating handle is also provided on the end of the bidirectional lead screw outside the placement plate; the side of the slider that slides in the sliding groove is threaded onto the threaded teeth of the bidirectional lead screw.

[0012] The present invention is further configured such that: a sliding groove is provided on the surface of the transmission shaft facing the transmission rod, which is slidably sleeved on the outer surface of the transmission rod; a limiting slider is provided on the outer surface of the transmission rod; a limiting groove is provided on the inner wall of the sliding groove, and the limiting slider slides within the limiting groove.

[0013] The advantages of this utility model are: This invention controls the two movable clamps on the left and right to move in opposite directions, which is different from the operation of existing conductive clamps. This reduces the number of steps required to clamp the silicon carbide rod terminals and improves the efficiency of testing the conductive coating on the terminals of gate-type silicon carbide rods. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a detection device for the conductive coating of a silicon carbide rod terminal according to the present invention. Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the internal structure of the control housing of this utility model; Figure 4 for Figure 1 Enlarged view at point B in the middle; Figure 5 This is the front view plan of the slide groove of this utility model.

[0015] In the diagram: 1. Base plate; 2. Conductive track; 3. Conductive slider; 4. Mounting column; 5. Placement plate; 6. Temperature measuring mechanism; 7. Clamping assembly; 71. Mounting plate; 72. Fixed clamp; 73. Movable clamp; 74. Restricting slide bar; 75. Limiting plate; 76. Threaded rod; 77. Transmission rod; 8. Conductive connector; 9. Control housing; 10. Rotating handle; 11. Control shaft; 12. First bevel gear; 13. Second bevel gear; 14. Drive shaft; 15. Sleeve groove; 16. Restricting slider; 17. Restricting groove; 18. Groove; 19. Slider; 20. Bidirectional lead screw. Detailed Implementation

[0016] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0017] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Please see Figure 1-5 The present invention provides the following technical solution: Specifically, this refers to a detection device for the conductive coating of silicon carbide rod terminals, comprising a base plate 1. Two parallel conductive tracks 2 are arranged on the upper surface of the base plate 1. Each conductive track 2 is slidably connected to a parallel conductive slider 3. Both the conductive slider 3 and the conductive tracks 2 are technologies disclosed in existing patent CN221667120U, and will not be elaborated upon here. According to existing technology, when the conductive tracks 2 are energized, current can be conducted to the conductive sliders 3. Mounting posts 4 are provided on the upper surfaces of the four conductive sliders 3. The mounting posts 4 are made of insulating material. Placement plates 5 for placing silicon carbide rods are provided on the four mounting posts 4. Two clamping components 7 for holding the silicon carbide rod terminals are provided on the front surface of the placement plates 5. A temperature measuring mechanism 6 is provided on the base plate 1. The temperature measuring mechanism 6 is also a technology disclosed in existing patent CN221667120U.

[0019] The clamping assembly 7 includes a mounting plate 71, which is located on the front side of the placement plate 5. A fixed clamp 72 is provided on the front side of the mounting plate 71, and a movable clamp 73 is provided on the side of the fixed clamp 72 facing the axis of the placement plate 5. Arc-shaped grooves are provided on the upper opposite surfaces of the fixed clamp 72 and the movable clamp 73. The silicon carbide rod terminal is placed between the fixed clamp 72 and the movable clamp 73, and the movable clamp 73 is controlled to move to one side of the fixed clamp 72, so that the silicon carbide rod terminal can be fixed between the two arc-shaped grooves.

[0020] Conductive blocks are embedded in the inner arc surfaces of the two arc-shaped grooves. A conductive connector 8 is provided on the surface of the fixed clamp 72 facing away from the movable clamp 73. The connecting end of the other side of the conductive connector 8 is electrically connected to the conductive slider 3. The end of the conductive connector 8 near the fixed clamp 72 is electrically connected to the conductive block. Therefore, the current on the conductive slider 3 can be conducted to the conductive block on the fixed clamp 72 through the conductive connector 8. A conductive connector 8 is also provided between the fixed clamp 72 and the movable clamp 73. The two ends of the conductive connector 8 are electrically connected to the conductive blocks in the two arc-shaped grooves respectively. Therefore, when the silicon carbide rod terminal is clamped between the fixed clamp 72 and the movable clamp 73, the silicon carbide rod terminal can be energized and moved to the temperature measuring mechanism 6 for detection.

[0021] A threaded rod 76 is rotatably connected to the surface of the fixed clamp 72 facing the movable clamp 73. The movable clamp 73 is threaded onto the outer surface of the threaded rod 76. A transmission rod 77 is provided at the end of the threaded rod 76 away from the fixed clamp 72. A control housing 9 located at the center of the two clamping assemblies 7 is provided on the front of the placement plate 5. A rotating handle 10 is provided on the control housing 9. A control shaft 11 is provided on the lower surface of the rotating handle 10. The lower end of the control shaft 11 rotatably penetrates into the control housing 9. A first bevel gear 12 is provided at the lower end of the control shaft 11. Two mirror-arranged second bevel gears 13 are meshed on the lower side of the first bevel gear 12. A transmission shaft 14 is provided on the opposite surfaces of the two second bevel gears 13. The other end of the transmission shaft 14 rotatably penetrates out of the outer surface of the control housing 9. The end of the transmission shaft 14 located outside the control housing 9 is connected to the transmission rod 77.

[0022] Therefore, when it is necessary to clamp the two terminals of the gate-type silicon carbide rod, it is only necessary to turn the handle 10. At this time, the first bevel gear 12 meshes and drives the two second bevel gears 13 to rotate in opposite directions. The left and right transmission rods 77 rotate synchronously in opposite directions under the transmission of the two transmission shafts 14, thereby controlling the left and right movable clamps 73 to move in relative or opposite directions. Unlike the existing conductive clamp operation method, it reduces the operation steps of clamping the terminals of the silicon carbide rod and improves the efficiency of testing the conductive coating of the terminals of the gate-type silicon carbide rod.

[0023] A limiting slide bar 74 is provided on the surface of the fixed clamp 72 facing the movable clamp 73. The lower side of the movable clamp 73 is slidably sleeved on the outer surface of the limiting slide bar 74. A limiting plate 75 is provided at the end of the limiting slide bar 74 away from the fixed clamp 72.

[0024] The front of the placement plate 5 has two grooves 18 that are close to the two clamping components 7 respectively. The surface of the mounting plate 71 near the grooves 18 is provided with a slider 19 that slides in the grooves 18. The side of the placement plate 5 is provided with a bidirectional lead screw 20. The end of the bidirectional lead screw 20 near the placement plate 5 rotates and passes through the two grooves 18, and two opposite threaded teeth are respectively provided in the two grooves 18. The end of the bidirectional lead screw 20 outside the placement plate 5 is also provided with a rotating handle 10. The side of the slider 19 that slides in the grooves 18 is threaded onto the threaded teeth of the bidirectional lead screw 20.

[0025] In use, by controlling the rotation of the bidirectional lead screw 20, the two sliders 19 are displaced in opposite directions or in the opposite direction under the two-stage thread drive of the bidirectional lead screw 20. Therefore, the distance between the two clamping components 7 can be adjusted, making the device suitable for the detection of conductive coatings on the terminals of silicon carbide rods of different models.

[0026] A sliding groove 15 is provided on the surface of the drive shaft 14 facing the drive rod 77, which is slidably sleeved on the outer surface of the drive rod 77. A limiting slider 16 is provided on the outer surface of the drive rod 77. A limiting groove 17 is provided on the inner wall of the sliding groove 15. The limiting slider 16 slides in the limiting groove 17. When the positions of the two clamping components 7 are adjusted, the drive rod 77 slides in the sliding groove 15. When the drive shaft 14 needs to drive the drive rod 77 to rotate, the drive rod 77 will rotate synchronously with the drive shaft 14 because it is limited by the limiting slider 16. Therefore, the above structure ensures that the clamping components 7 will not affect the rotation of the drive rod 77 after the position is adjusted.

[0027] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A detection device for conductive coating on silicon carbide rod terminals, comprising a movable conductive base and a placement plate (5), wherein two clamping assemblies (7) for clamping silicon carbide rod terminals are provided on the front surface of the placement plate (5), characterized in that: The clamping assembly (7) includes a mounting plate (71) located on the front side of the placement plate (5). A fixed clamp (72) is provided on the front side of the mounting plate (71). A movable clamp (73) is provided on the side of the fixed clamp (72) facing the axis of the placement plate (5). An arc-shaped groove is provided on the upper opposite surfaces of the fixed clamp (72) and the movable clamp (73). A threaded rod (76) is rotatably connected to the surface of the fixed clamp (72) facing the movable clamp (73). The movable clamp (73) is threaded onto the outer surface of the threaded rod (76). A transmission rod (77) is provided at the end of the threaded rod (76) away from the fixed clamp (72). The front side of the placement plate (5) is provided with... A control housing (9) is provided with a rotating handle (10). A control shaft (11) is provided on the lower surface of the rotating handle (10). The lower end of the control shaft (11) rotates through into the control housing (9). A first bevel gear (12) is provided at the lower end of the control shaft (11). Two second bevel gears (13) are meshed on the lower side of the first bevel gear (12). A transmission shaft (14) is provided on the opposite surfaces of the two second bevel gears (13). The other end of the transmission shaft (14) rotates through the outer surface of the control housing (9). The end of the transmission shaft (14) located outside the control housing (9) is connected to the transmission rod (77).

2. The detection device for the conductive coating at the terminals of a silicon carbide rod according to claim 1, characterized in that: The movable conductive base includes a base plate (1), and two conductive tracks (2) arranged in parallel left and right are provided on the upper surface of the base plate (1). Two conductive sliders (3) arranged in parallel front and rear are slidably connected on the two conductive tracks (2). Mounting columns (4) are provided on the upper surface of the four conductive sliders (3). The placement plate (5) is installed on the upper side of the four mounting plates (71). A temperature measuring mechanism (6) is provided on the base plate (1).

3. The detection device for the conductive coating at the terminal of a silicon carbide rod according to claim 1, characterized in that: Conductive blocks are embedded in the inner arc surfaces of the two arc-shaped grooves. A conductive connector (8) is provided on the surface of the fixed clamp (72) facing away from the movable clamp (73). The connecting end of the conductive connector (8) on the other side is electrically connected to the conductive slider (3). The end of the conductive connector (8) near the fixed clamp (72) is electrically connected to the conductive block. A conductive connector (8) is also provided between the fixed clamp (72) and the movable clamp (73). The two ends of the conductive connector (8) are electrically connected to the conductive blocks in the two arc-shaped grooves respectively.

4. The detection device for the conductive coating at the terminal of a silicon carbide rod according to claim 1, characterized in that: The fixed clamp (72) has a limiting slide bar (74) on its surface facing the movable clamp (73). The lower side of the movable clamp (73) is slidably sleeved on the outer surface of the limiting slide bar (74). A limiting plate (75) is provided at the end of the limiting slide bar (74) away from the fixed clamp (72).

5. The detection device for the conductive coating at the terminal of a silicon carbide rod according to claim 1, characterized in that: The placement plate (5) has two grooves (18) on its front side that are close to the two clamping components (7) respectively. The mounting plate (71) has a slider (19) on its surface close to the grooves (18) that slides in the grooves (18).

6. The detection device for the conductive coating on the terminals of a silicon carbide rod according to claim 5, characterized in that: The side of the placement plate (5) is provided with a bidirectional lead screw (20). The end of the bidirectional lead screw (20) near the placement plate (5) rotates and passes through two slide grooves (18), and two opposite thread teeth are respectively set in the two slide grooves (18). The end of the bidirectional lead screw (20) outside the placement plate (5) is also provided with a rotating handle (10). The side of the slider (19) that slides in the slide groove (18) is threaded onto the thread teeth of the bidirectional lead screw (20).

7. The detection device for the conductive coating on the terminals of a silicon carbide rod according to claim 1, characterized in that: The drive shaft (14) has a sliding groove (15) on its surface facing the drive rod (77), which is slidably sleeved on the outer surface of the drive rod (77). A limiting slider (16) is provided on the outer surface of the drive rod (77). A limiting groove (17) is provided on the inner wall of the sliding groove (15), and the limiting slider (16) slides in the limiting groove (17).

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