A cooling clamp jaw for a draw arc machine

Abstract

The application relates to a cooling clamp jaw for a draw arc machine, and relates to the technical field of draw arc machines, which comprises a draw arc machine body, a first end head and a second end head are arranged on the draw arc machine body, a clamp jaw assembly is arranged on the draw arc machine body, the clamp jaw assembly is used for clamping the first end head and the second end head, a cooling assembly is arranged on the draw arc machine body, the cooling assembly is towards a side close to the first end head and the second end head, and the cooling assembly is used for cooling the first end head and the second end head. The cooling assembly of the application cools the first end head and the second end head, thereby reducing oxidation of the first end head and the second end head and reducing the frequency of replacement. In addition, since the clamp jaw assembly clamps the first end head and the second end head, the convenience of dismounting and mounting the first end head and the second end head is improved, and the test efficiency of the draw arc machine is improved.

Description

Technical Field

[0001] This application relates to the field of arc drawing machine technology, and in particular to a cooling gripper for an arc drawing machine. Background Technology

[0002] Currently, an arc generator is a detection device specifically designed to simulate DC arc faults, primarily used for testing photovoltaic inverters. By artificially generating a controllable arc (series / parallel / ground type) on the DC side of the photovoltaic system (80V-1500V), it verifies whether the inverter can identify and cut off the arc within 2 seconds. The device consists of a high-voltage power supply, an adjustable electrode arc generator, a data acquisition system, and an explosion-proof protection unit. It can precisely set arc parameters and monitor the inverter's response performance to high-frequency arc noise in real time. It is mainly used for inverter certification testing, arc detection algorithm optimization, and photovoltaic system safety assessment.

[0003] A Chinese patent with publication number CN221631582U discloses an arc generator for DC arc detection of a photovoltaic inverter, comprising: a base, a housing, a motor drive assembly, a first copper rod assembly, a second copper rod assembly, and a sliding assembly. The first copper rod assembly is disposed at a first end of the base, and the motor drive assembly and the second copper rod assembly are disposed at a second end of the base. The motor drive assembly is connected to the second copper rod assembly through the sliding assembly. The second copper rod of the second copper rod assembly is correspondingly disposed to the first copper rod of the first copper rod assembly. The housing is disposed on the base.

[0004] In related technologies, the movement of the sliding component is controlled by the motor drive component, which in turn drives the second copper rod component to move relative to the first copper rod component, generating an electric arc to meet the DC arc detection requirements of the photovoltaic inverter.

[0005] Regarding the aforementioned technologies, the inventors believe that the electric arc generates high temperatures during its generation, causing the copper rod to oxidize and requiring frequent replacement, thus affecting the testing efficiency of the arc-drawing machine. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a cooling gripper for an arc-drawing machine, which solves the technical problem that the high temperature generated during the generation of the arc causes the copper rod to oxidize, requiring frequent replacement and affecting the testing efficiency of the arc-drawing machine.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] A cooling gripper for an arc drawing machine includes an arc drawing machine body, a first end and a second end provided on the arc drawing machine body, a gripper assembly provided on the arc drawing machine body for clamping the first end and the second end, and a cooling assembly provided on the arc drawing machine body, the cooling assembly facing the side close to the first end and the second end, the cooling assembly for cooling the first end and the second end.

[0009] Furthermore, the gripper assembly includes a clamping cylinder and a gripper body. The clamping cylinder is mounted on the arc drawing machine body, and several gripper bodies are spaced apart on the clamping cylinder. Each gripper body is provided with a first clamping block, which is used to clamp a first end or a second end.

[0010] Furthermore, a second clamping block is provided on one side of the first clamping block, and a connecting rod is provided on the second clamping block. One end of the connecting rod is connected to the second clamping block, and the other end extends toward the first clamping block. The first end or the second end is installed on the second clamping block.

[0011] Furthermore, air guide grooves are provided on the first clamping block and the second clamping block, and a plurality of air guide grooves are provided at intervals on the first clamping block and the second clamping block.

[0012] Furthermore, the cooling assembly includes a cooling nozzle facing towards the side closest to the first clamping block.

[0013] Furthermore, the second clamping block has bolt holes and mounting bolts, one end of which passes through the bolt holes and connects to the first end or the second end.

[0014] Furthermore, the arc drawing machine body is provided with an adjusting cylinder, which is installed on the arc drawing machine body, and one end of the piston rod of the adjusting cylinder is connected to the clamping cylinder.

[0015] In summary, this application includes at least one of the following beneficial technical effects for the cooling gripper of an arc-drawing machine:

[0016] 1. During use, the first end and the second end are clamped together by the gripper assembly. During the generation of an electric arc, the cooling assembly cools down the first end and the second end, thereby reducing oxidation of the first end and the frequency of replacement. In addition, since the gripper assembly clamps the first end and the second end, the ease of disassembly and installation of the first end and the second end is improved, thus improving the testing efficiency of the arc drawing machine.

[0017] 2. By mounting the first clamping block on the gripper body of the clamping cylinder and the connecting rod on the second clamping block, the first end or the second end is mounted on the second clamping block, thereby improving the ease of installation of the first end and the second end;

[0018] 3. The cooling effect of the first and second ends is improved by the air guide slots opened on the first and second clamping blocks and the setting of the cooling nozzles. Attached Figure Description

[0019] Figure 1 This application mainly provides a schematic diagram of the overall structure of a cooling gripper for an arc drawing machine;

[0020] Figure 2 This is a schematic diagram of the main adjustment component structure provided in this application;

[0021] Figure 3 This is an exploded view of the first and second clamping block structures, which are the main components of this application.

[0022] Reference numerals: 1. Arc drawing machine body; 11. First end; 12. Second end; 13. Adjusting cylinder; 2. Gripper assembly; 21. Clamping cylinder; 22. Gripper body; 23. First clamping block; 231. Air guide channel; 232. Heat dissipation fins; 24. Second clamping block; 241. Connecting rod; 242. Bolt hole; 243. Mounting bolt; 3. Cooling assembly; 31. Cooling nozzle. Detailed Implementation

[0023] In order to make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0025] This application discloses a cooling gripper for an arc drawing machine.

[0026] Reference Figure 1 A cooling gripper for an arc drawing machine includes an arc drawing machine body 1, on which a first end 11 and a second end 12 are provided. During use, an electric arc is formed between the first end 11 and the second end 12. The arc drawing machine body 1 is provided with a gripper assembly 2 and a cooling assembly 3. The gripper assembly 2 is used to clamp the first end 11 and the second end 12, and the cooling assembly 3 is used to cool the first end 11 and the second end 12.

[0027] The first end 11 and the second end 12 are arranged opposite each other, and an electric arc is formed between the first end 11 and the second end 12. Since the first end 11 and the second end 12 are arranged opposite each other, two sets of gripper assemblies 2 and cooling assemblies 3 are arranged at intervals on the arc drawing machine body 1. The two sets of gripper assemblies 2 and cooling assemblies 3 have the same structure and function. Only one set will be described below.

[0028] Reference Figure 2 The gripper assembly 2 includes a clamping cylinder 21, which is horizontally mounted on the arc drawing machine body 1. The clamping cylinder 21 is equipped with gripper bodies 22, and three sets of gripper bodies 22 are spaced apart on the clamping cylinder 21. All three sets of gripper bodies 22 are mounted on the clamping cylinder 21. In use, the clamping cylinder 21 drives the three sets of gripper bodies 22 to move toward or away from each other.

[0029] Furthermore, each of the three sets of gripper bodies 22 is provided with a first clamping block 23, and all three sets of first clamping blocks 23 are locked to the first clamping block 23 by bolts. In use, the three sets of first clamping blocks 23 move toward or away from each other under the action of the gripper bodies 22.

[0030] Reference Figures 2-3 A second clamping block 24 is provided on one side of the first clamping block 23, and a connecting rod 241 is provided on one side of the second clamping block 24. One end of the connecting rod 241 is integrally formed with the second clamping block 24, and the other end extends towards the side closer to the first clamping block 23. In use, the connecting rod 241 is inserted between the three sets of first clamping blocks 23, and then the clamping cylinder 21 drives the gripper body 22 to clamp the connecting rod 241 with the first clamping blocks 23. The first end 11 is installed on the side of the second clamping block 24 opposite to the first clamping block 23.

[0031] Reference Figure 3 The second clamping block 24 has bolt holes 242 spaced apart. A mounting bolt 243 is provided on the second clamping block 24. One end of the mounting bolt 243 passes through the bolt hole 242 on the second clamping block 24, and the other end of the mounting bolt 243 is threadedly connected to the first end 11. The first end 11 is locked onto the second clamping block 24 by the mounting bolt 243. In use, the second clamping block 24 is clamped by the clamping jaw body 22 and the first clamping block 23, and then the first end 11 is locked onto the second clamping block 24 by bolts. This method improves the ease of disassembling and installing the first end 11.

[0032] The cooling assembly 3 includes a cooling nozzle 31, which is mounted on the clamping cylinder 21, with one end of the cooling nozzle 31 facing the side closest to the first clamping block 23. In use, an external air supply line is connected to the cooling nozzle 31, and air is blown onto the first clamping block 23 through the cooling nozzle 31, accelerating the airflow on the surfaces of the first clamping block 23, the second clamping block 24, and the first end 11, thereby reducing the wear and tear on the first end 11 during use.

[0033] Furthermore, both the first clamping block 23 and the second clamping block 24 are provided with air guide grooves 231. Several air guide grooves 231 are spaced apart on the first clamping block 23 and the second clamping block 24, and heat dissipation fins 232 are formed between several adjacent air guide grooves 231. In use, gas is blown out from the cooling nozzle 31 and passes through the air guide grooves 231 on the first clamping block 23 and the second clamping block 24. The air guide grooves 231 separate the gas blown out from the cooling nozzle 31 into several streams, which can improve the cooling effect of the gas on the first end 11, and at the same time reduce the influence of the first clamping block 23 and the second clamping block 24 on the cooling effect of the cooling nozzle 31 on the first end 11.

[0034] Furthermore, the first end 11 generates a high temperature during operation. If this high temperature is directly transferred to the clamping cylinder 21, it will affect the normal operation of the clamping cylinder 21. Therefore, the heat dissipation fins 232 on the first clamping block 23 and the second clamping block 24 can also play a role in heat dissipation. At the same time, the air blown by the cooling nozzle 31 can also accelerate the airflow on the surface of the first clamping block 23 and the second clamping block 24, reducing the direct transfer of temperature from the first end 11 to the clamping cylinder 21 and the internal components of the arc drawing machine body 1, thereby extending the service life of the arc drawing machine body 1.

[0035] An adjusting cylinder 13 is installed on the arc-drawing machine body 1. The adjusting cylinder 13 is horizontally mounted on the arc-drawing machine body 1, and a clamping cylinder 21 is installed at one end of the piston rod of the adjusting cylinder 13. In use, the adjusting cylinder 13 drives the clamping cylinder 21, which clamps the first end 11, to move closer to or further away from the second end 12, so that the first end 11 and the second end 12 can simulate arc faults of different intensities.

[0036] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A cooling gripper for an arc drawing machine, comprising an arc drawing machine body (1), characterized in that: The arc drawing machine body (1) is provided with a first end (11) and a second end (12). The arc drawing machine body (1) is provided with a gripper assembly (2) for clamping the first end (11) and the second end (12). The arc drawing machine body (1) is provided with a cooling assembly (3) facing the side close to the first end (11) and the second end (12) for cooling the first end (11) and the second end (12).

2. A cooling gripper for an arc drawing machine according to claim 1, characterized in that: The gripper assembly (2) includes a clamping cylinder (21) and a gripper body (22). The clamping cylinder (21) is mounted on the arc drawing machine body (1). Several gripper bodies (22) are spaced apart on the clamping cylinder (21). Each gripper body (22) is provided with a first clamping block (23). The first clamping block (23) is used to clamp the first end (11) or the second end (12).

3. A cooling gripper for an arc drawing machine according to claim 2, characterized in that: A second clamping block (24) is provided on one side of the first clamping block (23). A connecting rod (241) is provided on the second clamping block (24). One end of the connecting rod (241) is connected to the second clamping block (24), and the other end extends toward the first clamping block (23). The first end (11) or the second end (12) is installed on the second clamping block (24).

4. A cooling gripper for an arc drawing machine according to claim 3, characterized in that: The first clamping block (23) and the second clamping block (24) are provided with air guide grooves (231), and a plurality of air guide grooves (231) are provided at intervals on the first clamping block (23) and the second clamping block (24).

5. A cooling gripper for an arc drawing machine according to claim 2, characterized in that: The cooling assembly (3) includes a cooling nozzle (31) facing toward the side close to the first clamping block (23).

6. A cooling gripper for an arc drawing machine according to claim 3, characterized in that: The second clamping block (24) has a bolt hole (242) and a mounting bolt (243) is provided on the second clamping block (24). One end of the mounting bolt (243) passes through the bolt hole (242) and is connected to the first end (11) or the second end (12).

7. A cooling gripper for an arc drawing machine according to claim 2, characterized in that: An adjusting cylinder (13) is provided on the arc drawing machine body (1). The adjusting cylinder (13) is installed on the arc drawing machine body (1), and one end of the piston rod of the adjusting cylinder (13) is connected to the clamping cylinder (21).

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