A tool for machining a toggle plate in a high-voltage switch protection device

Abstract

The utility model provides a kind of tooling for processing crank arm plate in high voltage switch protection device, it is related to fixed tooling field, including bottom plate, positioning assembly and clamping assembly;Positioning assembly includes locating peg and locating post;Locating peg is fixed with bottom plate;Locating post is slidably fixed with bottom plate;Locating peg is located at the rear of locating post;Locating post slides along front and back direction;The clamping piece of two clamping assemblies is set left and right;Clamping piece includes clamping block;The bottom of clamping block is provided with accommodating recess;Two clamping blocks are slidably fixed with bottom plate;Two clamping blocks slide along left and right direction.The utility model can solve the existing technology when processing rotating shaft hole, if crank arm plate is not stable, processing equipment shifts rotating shaft hole required processing position, it can cause the precision of rotating shaft hole to produce deviation, further affect the assembly and use between crank arm shaft pole and crank arm plate, cause the radial wobble or axial deviation of crank arm shaft pole after installation, make the swing trajectory of crank arm plate deviate from the design path problem.

Description

Technical Field

[0001] This utility model relates to the field of fixed tooling, and in particular to a tooling for processing crank plate in high voltage switch protection devices. Background Technology

[0002] A high-voltage switch is a multi-component linkage mechanism used to open and close conductive circuits. Specifically, a motor drives a trigger block via coupling, which in turn triggers a limit switch, causing the main drive shaft of the switch to rotate, thereby realizing the opening and closing of the high-voltage switch. The high-voltage switch protection device is used to prevent the limit switch from failing or the main drive shaft from being jammed due to accidental reasons, thus preventing damage to components caused by increased output load of the motor.

[0003] The structure of the high-voltage switch protection device is shown in Chinese Patent Application No. 202411686953.8, which discloses a high-voltage switch mechanism protection device, including a first base frame, a first limit switch, a second base frame, a second limit switch, a drive screw, a drive slider, a crank arm shaft, and a crank arm plate. The first limit switch is fixedly installed on the lower side of one side of the first base frame, and the second limit switch is fixedly installed on the upper side of one side of the second base frame; wherein, the crank arm plate is as follows... Figure 4 As shown, if the crank arm plate is horizontally set, the cross-section of the crank arm plate is triangular; one corner of the crank arm plate is a rounded corner 01; a pivot hole 02 is provided on the crank arm plate; the pivot hole 02 is adjacent to the rounded corner 01; the left and right sides connected to the rounded corner 01 are the first edge 001 and the second edge 002, respectively; the crank arm plate is provided with an extension 03; the extension 03 is connected to the first edge 001; an opening 031 is provided on the extension 03; a third edge 003 is also connected to the first edge 001 and the second edge 002; a Y-shaped hole 04 is also provided on the crank arm plate; the Y-shaped hole 04 is located at the third edge 003; the Y-shaped hole 04 includes an inverted triangular hole 041 and a waist hole 042; the inverted triangular hole 041 and the waist hole 042 are connected.

[0004] In the aforementioned patent, the crank arm plate serves to convert the linear motion of the drive slider into a swinging motion. The crank arm shaft needs to be rotatably mounted within the pivot hole. Therefore, the accuracy of the pivot hole affects the rotation state of the crank arm shaft within it. Consequently, when machining the pivot hole, if the crank arm plate is not securely fixed, and the machining equipment deviates from the required machining position of the pivot hole, the accuracy of the pivot hole will deviate. This will affect the assembly and use of the crank arm shaft and the crank arm plate, causing the crank arm shaft to wobble radially or shift axially after installation, thus causing the swing trajectory of the crank arm plate to deviate from the design path. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a tooling for machining crank arm plates in high-voltage switch protection devices. This tooling solves the problem in existing technologies where, if the crank arm plate is not securely fixed during machining of the shaft hole, the machining equipment may shift to the required machining position of the shaft hole, leading to deviations in the accuracy of the shaft hole. This, in turn, affects the assembly and use of the crank arm shaft and crank arm plate, causing radial wobbling or axial displacement of the crank arm shaft after installation, and resulting in the crank arm plate's swing trajectory deviating from the design path. This tooling improves the stability of the crank arm plate during machining, thereby improving the accuracy of the shaft hole and preventing radial wobbling or axial displacement of the crank arm shaft after installation, which would cause the crank arm plate's swing trajectory to deviate from the design path.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a tooling for processing crank arm plates in high-voltage switch protection devices, including a base plate, a positioning assembly, and a clamping assembly; if the base plate is horizontally arranged, the positioning assembly and the clamping assembly are located on the upper surface of the base plate;

[0008] The positioning assembly includes a positioning pin and a positioning post; the positioning pin is fixed to the base plate; the axis of the positioning post is perpendicular to the surface of the base plate; the positioning post is slidably fixed to the base plate; the positioning pin is located behind the positioning post; the positioning post slides in the front-back direction.

[0009] The clamping assembly includes two clamping members; the two clamping members are arranged left and right; the clamping members are located between the positioning pin and the positioning post; each clamping member includes a clamping block; the bottom of the clamping block has a receiving groove; the adjacent ends of the two clamping blocks are used as the inner ends, and the receiving groove extends to the inner edge of the clamping block; the two clamping blocks are slidably fixed to the base plate; the two clamping blocks slide in the left and right direction.

[0010] The tooling for machining the crank arm plate in the high-voltage switch protection device provided by this utility model preferably includes a sliding fixing component in the positioning component.

[0011] The sliding fixing assembly includes a sliding plate and a horizontal plate; the sliding plate is slidably fixed to the base plate; the horizontal plate is located above the sliding plate; the horizontal plate is fixed to the sliding plate; a fixing hole is provided on the horizontal plate; the positioning post is rotatably fixed in the fixing hole; the positioning post is located behind the sliding plate.

[0012] The tooling provided by this utility model for processing the crank arm plate in a high-voltage switch protection device preferably includes a first guide protrusion on the base plate; the first guide protrusion extends in the front-rear direction; a first limiting groove is provided at the bottom of the sliding plate; the first guide protrusion is embedded in the first limiting groove; a first waist hole is provided on the sliding plate; the first waist hole extends in the front-rear direction; the first waist hole is located above the first guide protrusion; and a first screw hole is provided on the first guide protrusion.

[0013] The sliding fixing assembly also includes a first bolt; the guide portion of the first bolt extends into the first waist hole and is tightened into the first screw hole.

[0014] The tooling provided by this utility model for processing the crank arm plate in a high-voltage switch protection device preferably includes two second guide protrusions on the base plate; the two second guide protrusions are arranged left and right; the second guide protrusions extend in the left and right direction; the bottom of the clamping block is provided with a second limiting groove; the second guide protrusions are embedded in the second limiting groove; a second waist hole is opened on the clamping block; the second waist hole extends in the left and right direction; the second waist hole is located above the second guide protrusions; the second guide protrusions are provided with a second screw hole.

[0015] The clamping member also includes a second bolt; the guide portion of the second bolt extends into the second waist hole and is tightened into the second screw hole.

[0016] The tooling provided by this utility model for processing the crank arm plate in a high-voltage switch protection device preferably includes an elastic element in the receiving groove; in the left-right direction, the vertical cross-section of the elastic element gradually increases from the inner end to the outer end.

[0017] The above technical solution has the following advantages or beneficial effects:

[0018] The tooling provided by this utility model for machining crank arm plates in high-voltage switch protection devices requires, in order to stably fix the crank arm plate on the machine tool spindle, that the crank arm plate be assembled on the tooling fixture, and then the tooling fixture be fixed to the machine tool spindle. Specifically, it includes a base plate, a positioning component, and a clamping component. If the base plate is horizontally set, the positioning component and the clamping component are located on the upper plate surface of the base plate. Here, the plate surface of the base plate that does not have the positioning component and the clamping component (the lower plate surface opposite to the upper plate surface) is fixed to the machine tool spindle to indirectly fix the crank arm plate to the machine tool spindle.

[0019] Furthermore, to facilitate determining the placement position of the crank arm plate on the base plate, the positioning assembly specifically includes a positioning pin and a positioning post. The positioning pin is located behind the positioning post. The positioning pin is fixed to the base plate, and the opening is fitted over the positioning pin to position one end of the crank arm plate. At this time, the third side of the crank arm plate is along the side adjacent to the positioning post. The positioning post is slidably fixed to the base plate, and the positioning post slides in the front-back direction to enter the Y-shaped hole. During this period, the axis of the positioning post is kept perpendicular to the surface of the base plate, so that the positioning post is engaged in the waist hole, thereby positioning the other end of the crank arm plate. The positioning pin and the positioning post can restrict the crank arm plate from sliding on the base plate. At the same time, the positioning post does not affect the placement space of the crank arm plate through sliding positioning, which is convenient for manual assembly.

[0020] Furthermore, to prevent the crank arm plate from swaying up and down and affecting the machining accuracy of the shaft hole, the clamping assembly specifically includes two clamping members for pressing the crank arm plate firmly onto the base plate. The clamping members are located between the positioning pin and the positioning post, and the two clamping members are arranged left and right to form symmetrical clamping, further improving the stability of the crank arm plate during machining. To achieve pressing the crank arm plate firmly onto the base plate, the clamping member includes a clamping block with a receiving groove at the bottom. The adjacent ends of the two clamping blocks are used as the inner ends, and the receiving groove extends to the inner edge of the clamping block. By extending the crank arm plate into the gap between the receiving groove and the base plate, the bottom of the clamping block, the crank arm plate, and the upper surface of the base plate form a tight fit, thereby pressing the crank arm plate firmly onto the base plate. Here, the two clamping blocks are slidably fixed to the base plate, and the two clamping blocks slide in the left and right direction. The slidable fixing of the clamping blocks does not affect the placement space of the crank arm plate, which is convenient for manual assembly.

[0021] In existing technologies, if the crank arm plate is not securely fixed during the machining of the pivot hole, the machining equipment may deviate from the required machining position of the pivot hole, leading to deviations in the accuracy of the pivot hole. This, in turn, affects the assembly and use of the crank arm shaft and the crank arm plate, causing radial wobbling or axial displacement of the crank arm shaft after installation, and causing the swing trajectory of the crank arm plate to deviate from the design path. To address this, the tooling for machining the crank arm plate in a high-voltage switch protection device provided by this invention uses positioning pins and positioning posts to position both ends of the crank arm plate and restrict its sliding on the base plate. Two relatively sliding clamping blocks are used to allow the crank arm plate to extend into the gap between the receiving groove and the base plate, achieving a tight fit between the bottom of the clamping blocks, the crank arm plate, and the upper surface of the base plate, preventing the crank arm plate from wobbling up and down. This structure improves the stability of the crank arm plate during machining, thereby improving the accuracy of the pivot hole and preventing radial wobbling or axial displacement of the crank arm shaft after installation, which could cause the crank arm plate's swing trajectory to deviate from the design path.

[0022] It should be noted that the directions up, down, left, right, front, and back referred to here are all based on the premise that the base plate is set horizontally. Attached Figure Description

[0023] The present invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not intentionally drawn to scale; the focus is on illustrating the gist of the invention.

[0024] Figure 1 This is a three-dimensional structural diagram of the tooling for processing the crank arm plate in the high-voltage switch protection device provided in Embodiment 1 of this utility model.

[0025] Figure 2 This is a cross-sectional structural schematic diagram of the tooling for processing the crank arm plate in the high-voltage switch protection device provided in Embodiment 1 of this utility model.

[0026] Figure 3 This is another cross-sectional structural schematic diagram of the tooling for processing the crank arm plate in the high-voltage switch protection device provided in Embodiment 1 of this utility model.

[0027] Figure 4 This is a schematic diagram of the crank arm plate in the existing technology. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0029] Example 1:

[0030] like Figure 1 As shown, Embodiment 1 of this utility model provides a tooling for processing the crank arm plate in a high-voltage switch protection device, including a base plate 1, a positioning component 2, and a clamping component 3; if the base plate 1 is horizontally arranged, the positioning component 2 and the clamping component 3 are located on the upper surface of the base plate 1.

[0031] The positioning component 2 includes a positioning pin 21 and a positioning post 22; the positioning pin 21 is fixed to the base plate 1; the axis of the positioning post 22 is perpendicular to the surface of the base plate 1; the positioning post 22 is slidably fixed to the base plate 1; the positioning pin 21 is located behind the positioning post 22; the positioning post 22 slides in the front-back direction.

[0032] The clamping assembly 3 includes two clamping members 31; the two clamping members 31 are arranged left and right; the clamping members 31 are located between the positioning pin 21 and the positioning post 22; the clamping member 31 includes a clamping block 311; the bottom of the clamping block 311 has a receiving groove 3111; the adjacent ends of the two clamping blocks 311 are used as the inner ends, and the receiving groove 3111 extends to the inner edge of the clamping block 311; the two clamping blocks 311 are slidably fixed to the base plate 1; the two clamping blocks 311 slide in the left and right direction.

[0033] When using the tooling provided in Embodiment 1 of this utility model for processing the crank arm plate in a high-voltage switch protection device, the positioning pin 21 is fitted into the opening 031, so that the third edge 003 of the crank arm plate faces the positioning post 22. The positioning post 22 slides backward, so that the positioning post 22 is engaged in the Y-shaped hole 04. Specifically, the positioning post 22 first enters the inverted triangular hole 041, and then enters the waist hole 042. At this time, the positioning pin 21 and the positioning post 22 determine the position of the crank arm plate and restrict the crank arm plate from sliding on the base plate 1. Both clamping blocks 311 slide towards the crank arm plate, and the first edge 001 and the second edge 002 of the crank arm plate respectively extend into the gap between the receiving groove 3111 and the base plate 1. At this time, the bottom of the clamping block 311, the crank arm plate and the base plate 1 are all in contact with the crank arm plate. The upper plate surface forms a tight fit, pressing the crank arm plate against the upper plate surface of the base plate 1, restricting the crank arm plate from swaying in the vertical direction; after the crank arm plate is assembled into the tooling, the base plate 1 is fixed to the machine tool spindle, so that the axis of the rotating shaft hole 02 coincides with the axis of the machine tool spindle (a disc-shaped base plate 1 can be used, aligning the axis of the base plate 1 with the axis of the rotating shaft hole 02, and then aligning the axis of the base plate 1 with the axis of the machine tool spindle, so as to facilitate the installation and fixing of the base plate 1 to the machine tool spindle), with the side on which the crank arm plate is fixed facing the tool, the machine tool spindle is rotated, causing the base plate 1 to rotate, thereby driving the crank arm plate to rotate, so that the tool can turn and finish machine the rotating shaft hole 02; it should be noted here that the rotating shaft hole 02 has been pre-drilled before this machining.

[0034] The tooling provided in Embodiment 1 of this utility model for processing crank arm plates in high-voltage switch protection devices requires, in order to stably fix the crank arm plate on the spindle of a machine tool, that the crank arm plate be assembled on the tooling fixture, and then the tooling fixture be fixed to the spindle of the machine tool. Specifically, it includes a base plate 1, a positioning component 2, and a clamping component 3. If the base plate 1 is horizontally set, the positioning component 2 and the clamping component 3 are located on the upper plate surface of the base plate 1. Here, the plate surface of the base plate 1 that is not provided with the positioning component 2 and the clamping component 3 (the lower plate surface opposite to the upper plate surface) is fixed to the spindle of the machine tool, so as to indirectly fix the crank arm plate to the spindle of the machine tool.

[0035] Furthermore, to facilitate determining the placement position of the crank arm plate on the base plate 1, the positioning assembly 2 specifically includes a positioning pin 21 and a positioning post 22. The positioning pin 21 is located behind the positioning post 22. The positioning pin 21 is fixed to the base plate 1, and the opening 031 is fitted over the positioning pin 21 to position one end of the crank arm plate. At this time, the third edge 003 of the crank arm plate is adjacent to the side of the positioning post 22. The positioning post 22 is slidably fixed to the base plate 1. The positioning post 22 slides in the front-back direction, allowing it to enter the Y-shaped hole 04. During this period, the axis of the positioning post 22 is kept perpendicular to the surface of the base plate 1, allowing the positioning post 22 to be engaged in the waist hole 042, thereby positioning the other end of the crank arm plate. The positioning pin 21 and the positioning post 22 can restrict the crank arm plate from sliding on the base plate 1. At the same time, the positioning post 22 does not affect the placement space of the crank arm plate through sliding positioning, which is convenient for manual assembly.

[0036] Furthermore, to prevent the crank arm plate from swaying up and down and affecting the machining accuracy of the pivot hole 02, the clamping assembly 3 specifically includes two clamping members 31 for pressing the crank arm plate onto the base plate 1. The clamping members 31 are located between the positioning pin 21 and the positioning post 22, and the two clamping members 31 are arranged left and right to form symmetrical clamping, further improving the stability of the crank arm plate during machining. To achieve pressing the crank arm plate onto the base plate 1, the clamping member 31 includes a clamping block 311, and the bottom of the clamping block 311 has a receiving groove 3111 to hold the two clamping members. One end adjacent to block 311 serves as the inner end, and the receiving groove 3111 extends to the inner edge of the clamping block 311. By extending the crank arm plate into the gap between the receiving groove 3111 and the base plate 1, the bottom of the clamping block 311, the crank arm plate, and the upper surface of the base plate 1 form a tight fit, thereby pressing the crank arm plate onto the base plate 1. Here, the two clamping blocks 311 are slidably fixed to the base plate 1. The two clamping blocks 311 slide in the left and right direction. The slidable fixing of the clamping blocks 311 does not affect the placement space of the crank arm plate, which is convenient for manual assembly.

[0037] In existing technology, if the crank arm plate is not securely fixed during the machining of the pivot hole 02, and the machining equipment deviates from the required machining position of the pivot hole, the accuracy of the pivot hole 02 will be deviated. This will affect the assembly and use between the crank arm shaft and the crank arm plate, causing radial wobbling or axial displacement of the crank arm shaft after installation, and causing the swing trajectory of the crank arm plate to deviate from the design path. To address this, the tooling for machining the crank arm plate in the high-voltage switch protection device provided in Embodiment 1 of this utility model is adopted. By setting positioning pins 21 and positioning posts 22, the two ends of the crank arm plate are positioned... Positioning is performed to restrict the crank arm plate from sliding on the base plate 1; by setting two relatively sliding clamping blocks 311, the crank arm plate extends into the gap between the receiving groove 3111 and the base plate 1, so that the bottom of the clamping block 311, the crank arm plate and the upper plate surface of the base plate 1 form a tight fit, preventing the crank arm plate from shaking up and down; the above structure improves the stability of the crank arm plate during the processing, thereby improving the accuracy of the pivot hole and preventing the crank arm shaft from radially shaking or axially offset after installation, which would cause the crank arm plate's swing trajectory to deviate from the design path;

[0038] It should be noted that the directions up, down, left, right, front, and back referred to here are all under the premise that the base plate 1 is set horizontally.

[0039] like Figure 1 As shown, the tooling for processing the crank arm plate in the high-voltage switch protection device provided in Embodiment 1 of this utility model is preferably further comprising a sliding fixing component 23 in order to achieve slidable fixing of the positioning column 22.

[0040] Specifically, the sliding fixing assembly 23 includes a sliding plate 231 and a horizontal plate 232. The sliding plate 231 is slidably fixed on the base plate 1, and the horizontal plate 232 is located above the sliding plate 231. The horizontal plate 232 is fixed to the sliding plate 231, and a fixing hole 2321 is provided on the horizontal plate 232. The positioning post 22 is rotatably fixed in the fixing hole 2321. The sliding plate 231 slides to drive the positioning post 22 to slide. At the same time, when the positioning post 22 is inserted into the Y-shaped hole 04, the positioning post 22 can rotate to achieve rolling contact with the inner wall of the Y-shaped hole 04, avoiding rigid contact between the positioning post 22 and the crank arm plate, thereby avoiding wear on the crank arm plate. The rolling contact also facilitates the insertion of the positioning post 22 into the Y-shaped hole 04, improving the assembly efficiency of the crank arm plate on the tooling. It should be noted that the positioning post 22 is located behind the sliding plate 231, so that the positioning post 22 can directly contact the crank arm plate.

[0041] like Figure 2As shown in Embodiment 1 of this utility model, the tooling for processing the crank arm plate in a high-voltage switch protection device is preferably provided with a first guide protrusion 11 on the base plate 1 to enable the positioning post 22 to move in the front-back direction. The first guide protrusion 11 extends in the front-back direction, and a first limiting groove 2311 is provided at the bottom of the sliding plate 231. The first guide protrusion 11 is embedded in the first limiting groove 2311, and the sliding plate 231 slides along the first guide protrusion 11, thereby driving the positioning post 22 to slide along the first guide protrusion 11 (front-back direction). To fix the positioning post 22 to the base plate 1, specifically... The sliding plate 231 has a first waist hole 2312, which extends in the front-back direction and is used to adjust the position of the sliding plate 231, that is, to adjust the position of the positioning post 22. The first waist hole 2312 is located above the first guide protrusion 11, which has a first screw hole 111. The sliding fixing assembly 23 also includes a first bolt 233, the lead part of which extends into the first waist hole 2312 and is tightened in the first screw hole 111. Through this structure, the sliding plate 231 is fixed to the first guide protrusion 11, thereby fixing the fixing post 22 to the base plate 1.

[0042] like Figure 3 As shown in Embodiment 1 of this utility model, the tooling for processing the crank arm plate in a high-voltage switch protection device is preferably provided with two second guide protrusions 12 on the base plate 1 to enable the clamping block 311 to move in the left and right direction. The second guide protrusions 12 extend in the left and right direction and are arranged left and right, respectively on both sides of the crank arm plate, so that the clamping block 311 can simultaneously press the left and right sides of the crank arm plate to improve the stability of the crank arm plate during processing. Furthermore, the bottom of the clamping block 311 is provided with a second limiting groove 3112, and the second guide protrusions 12 are embedded in the second limiting groove 3112. The clamping block 311 moves in the left and right direction. The second guide rib 12 slides (in the left and right direction) to enable the two clamping blocks 311 to move towards each other. In order to fix the clamping block 311 to the base plate 1, the clamping block 311 is provided with a second waist hole 3113, which extends in the left and right direction to adjust the position of the clamping block 311. The second waist hole 3113 is located above the second guide rib 12. The second guide rib 12 is provided with a second screw hole 121. The clamping member 31 also includes a second bolt 312. The guide part of the second bolt 312 extends into the second waist hole 121 and is tightened in the second screw hole 121. This structure enables the clamping block 311 to be fixed to the second guide rib 12.

[0043] like Figure 3As shown in Embodiment 1 of this utility model, the tooling for processing the crank arm plate in a high-voltage switch protection device is preferably designed to ensure a tight fit between the bottom of the clamping member 311, the crank arm plate, and the upper surface of the base plate 1, thereby pressing the crank arm plate against the upper surface of the base plate 1. Specifically, an elastic member 31111 is provided in the receiving groove 3111. When the crank arm plate is inserted into the gap between the receiving groove 3111 and the upper surface of the base plate 1, the crank arm plate squeezes the elastic member 31111, thereby forming a tight fit between the elastic member 31111, the crank arm plate, and the base plate 1, preventing the crank arm plate from shaking due to small gaps. Furthermore, to prevent the crank arm plate from being difficult to insert into the gap between the receiving groove 3111 and the upper surface of the base plate 1, the vertical cross-section of the elastic member 31111 gradually increases from the inner end to the outer end in the left-right direction, allowing the crank arm plate to be inserted from a larger gap to a smaller gap, thus improving the ease of assembly of the crank arm plate on the tooling.

[0044] In summary, the tooling provided by this utility model for machining crank plate in high-voltage switch protection devices can solve the problem in the prior art where, if the crank plate is not securely fixed during machining of the shaft hole, the machining equipment may deviate from the required machining position of the shaft hole, leading to deviations in the accuracy of the shaft hole. This, in turn, affects the assembly and use of the crank arm shaft and the crank plate, causing radial wobbling or axial displacement of the crank arm shaft after installation, and causing the swing trajectory of the crank plate to deviate from the design path. This invention improves the stability of the crank plate during machining, thereby improving the accuracy of the shaft hole and preventing radial wobbling or axial displacement of the crank arm shaft after installation, which would cause the swing trajectory of the crank plate to deviate from the design path.

[0045] Those skilled in the art should understand that variations can be implemented by combining existing technology and the above embodiments, and will not be elaborated here. Such variations do not affect the substantive content of this utility model, and will not be elaborated here.

[0046] The preferred embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art; any possible variations and modifications made by those skilled in the art without departing from the technical solution of this utility model, or equivalent embodiments with equivalent changes, do not affect the essential content of this utility model. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from the content of the technical solution of this utility model, shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A tooling for machining crank arm plates in high-voltage switch protection devices, characterized in that, It includes a base plate, a positioning component, and a clamping component; if the base plate is horizontally positioned, the positioning component and the clamping component are located on the upper surface of the base plate; The positioning assembly includes a positioning pin and a positioning post; the positioning pin is fixed to the base plate; the axis of the positioning post is perpendicular to the surface of the base plate; the positioning post is slidably fixed to the base plate; the positioning pin is located behind the positioning post; the positioning post slides in the front-back direction. The clamping assembly includes two clamping members; the two clamping members are arranged left and right; the clamping members are located between the positioning pin and the positioning post; the clamping member includes a clamping block; the bottom of the clamping block has a receiving groove; the adjacent ends of the two clamping blocks are taken as the inner ends, and the receiving groove extends to the inner edge of the clamping block; The two clamping blocks are slidably fixed to the base plate; the two clamping blocks slide in the left-right direction.

2. The tooling for machining the crank arm plate in a high-voltage switch protection device as described in claim 1, characterized in that, The positioning component also includes a sliding fixing component; The sliding fixing assembly includes a sliding plate and a horizontal plate; the sliding plate is slidably fixed to the base plate; the horizontal plate is located above the sliding plate; the horizontal plate is fixed to the sliding plate; a fixing hole is provided on the horizontal plate; the positioning post is rotatably fixed in the fixing hole; the positioning post is located behind the sliding plate.

3. The tooling for machining the crank arm plate in a high-voltage switch protection device as described in claim 2, characterized in that, The base plate is provided with a first guide protrusion; the first guide protrusion extends in the front-to-back direction; the bottom of the sliding plate is provided with a first limiting groove; the first guide protrusion is embedded in the first limiting groove; the sliding plate is provided with a first waist hole; the first waist hole extends in the front-to-back direction; the first waist hole is located above the first guide protrusion; the first guide protrusion is provided with a first screw hole. The sliding fixing assembly also includes a first bolt; the guide portion of the first bolt extends into the first waist hole and is tightened into the first screw hole.

4. The tooling for machining the crank arm plate in a high-voltage switch protection device as described in claim 1, characterized in that, The base plate is also provided with two second guide protrusions; the two second guide protrusions are arranged left and right; the second guide protrusions extend in the left and right direction; the bottom of the clamping block is provided with a second limiting groove; the second guide protrusions are embedded in the second limiting groove; a second waist hole is opened on the clamping block; the second waist hole extends in the left and right direction; the second waist hole is located above the second guide protrusions; the second guide protrusions are provided with a second screw hole; The clamping member also includes a second bolt; the guide portion of the second bolt extends into the second waist hole and is tightened into the second screw hole.

5. The tooling for machining the crank arm plate in a high-voltage switch protection device as described in claim 1, characterized in that, The receiving groove is provided with an elastic element; in the left-right direction, the vertical cross-section of the elastic element gradually increases from the inner end to the outer end.

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