A protective cover for transformer of numerical control machine tool

Abstract

The invention relates to the field of transformer protection, and specifically to a transformer protection cover for a numerically controlled machine tool, comprising a cover body and an inner fixing component, wherein the cover body is composed of a fixed cover shell and a movable cover shell, wherein the lower end of the movable cover shell is slidably connected to the upper end of the fixed cover shell, and an inner fixing component is arranged inside the cover body. The upper and lower parts of the cover body arranged in the invention adopt an independent movable assembly structure, on this basis, the transformer inspection work can be carried out without disassembling or moving the transformer, so that the operator can inspect or clean the transformer more conveniently, and the cover body can also realize external shielding and protection of the transformer, so as to prevent the worker from accidentally touching the transformer and a large amount of impurities from being attached to the surface of the transformer. The invention can utilize the inner fixing component to implement independent external fixing treatment on the electric wires, so as to prevent the electric wires from being entangled with each other or being in a random shaking state under the action of external force, thereby improving the connection stability between the transformer and the external connection equipment.

Description

Technical Field

[0001] The invention relates to the field of transformer protection, in particular to a transformer protection cover for a numerical control machine tool. Background Art

[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. It is widely used in precision machine tools, CNC machine tools, mechanical and electronic equipment, etc. When the transformer is installed indoors or outdoors, it is generally installed in three ways: fully sealed, exposed or semi-sealed.

[0003] Although direct exposed installation of the transformer makes it easier for operators to carry out transformer maintenance work, it also increases the chance of operators accidentally touching the transformer. At the same time, impurities such as dust in the working environment are more likely to adhere to the surface of the transformer. After a long time, a thicker layer of impurities will affect the operation of the transformer.

[0004] In addition, when the transformer is installed exposedly, it is more susceptible to collisions by external forces and may be deformed or malfunction. At the same time, the wires connected to the transformer are not externally fixed and are more likely to shake under the action of external forces. When the shaking amplitude is too large or the transformer continues to shake due to the long-term action of external forces, the connection firmness of the wires will be affected. Summary of the invention

[0005] In order to solve the above technical problems, the present invention adopts the following technical solution: a protective cover for a CNC machine tool transformer, comprising a cover body and an internal fixed component, wherein the cover body is composed of a fixed cover shell and a movable cover shell, the lower end of the movable cover shell is slidably connected to the upper end of the fixed cover shell, and an internal fixed component is provided inside the cover body.

[0006] The fixed cover shell and the movable cover shell each include two concave plates arranged symmetrically on the left and right, with the open ends of the concave plates facing inward, wherein hollow blocks are symmetrically installed on the front and rear ends of the left concave plate, and insertion plates are symmetrically installed on the front and rear ends of the right concave plate, the insertion plates are plugged into the hollow blocks, and a stop plate is clamped on the left end of the insertion plates, the stop plate is located on the left side of the hollow blocks, and the stop plate is perpendicular to the insertion plate, butt plates are installed on the opposite ends of the two concave plates constituting the fixed cover shell, the two butt plates are plugged in, and cover plates are installed on the upper ends of the two concave plates constituting the movable cover shell, and a wire outlet slot is provided at the left end of the movable cover shell, which is preliminarily connected through the insertion plate, the hollow plate and the stop plate Assemble the fixed cover shell, plug the docking plate into a whole, and do not assemble the mobile cover shell temporarily. Then manually place the transformer on the upper end of the docking plate and fix the lower end of the transformer on the docking plate through the matching bolts. Then, externally fix the wires carried by the transformer through the internal fixing parts. The wires connected to the external equipment pass through the outlet groove. Then, manually move the two concave plates that make up the mobile cover shell relative to each other until the two concave plates are docked. Then, assemble the mobile cover shell through the insertion plate, the hollow plate and the stop plate. At this time, the transformer is completely located in the cover body. Then, the cover body and the transformer are installed on the CNC machine tool as a whole.

[0007] In the case where the cover body and the transformer are assembled as a whole, when it is necessary to inspect or clean the transformer, the movable cover can be manually disassembled and assembled, and the concave plates constituting the movable cover can be moved to the two ends of the fixed cover to make the movable cover open. At this time, the transformer appears in the field of vision of the operator, and the operator can smoothly inspect it. Because the transformer is still fixed in the fixed cover, there is no need to worry about the transformer being offset due to external force during the inspection.

[0008] The internal fixed components include a wiring board, a wiring block, an elastic plate, a round rod, a connecting piece, a shaft, a hanging piece and a supporting plate. A wiring board is provided on the upper left side of the fixed cover shell, and the wiring board is located in the movable cover shell. A U-shaped wiring block is provided at the upper end of the wiring board at equal distances from front to back, and the open end of the wiring block faces upward. An elastic plate is installed on the upper end of the wiring block, and one end of the elastic plate is tilted downward. The wiring board is located on the right side of the wire outlet slot. Round rods are symmetrically arranged on the right side of the wiring board, and the round rods are connected to the right end of the fixed cover shell by threaded fitting. A connecting piece is rotatably connected to the left end of the round rod. The connecting piece is located in the fixed cover shell, and a shaft is clamped between the upper ends of the connecting pieces. A hanging piece is installed on the right end surface of the upper end of the connecting piece, and a supporting plate is installed on the lower left end of the hanging piece. The supporting plate is located directly below the shaft. The matching wires of the transformer are installed on the upper end of the transformer, and the wires are connected from the upper left end of the transformer. The installation shape of the wires at the upper right end of the transformer is U-shaped.

[0009] The transformer is fixed to the docking plate by matching bolts. At this time, the transformer is located between the wiring board and the shaft. Then, the elastic plate is manually lifted and the wires that need to be connected to the external equipment are placed in the wire fixing block one by one. Then the elastic plate is loosened. The elastic plate is tightly attached to the surface of the wire. The wire is clamped between the elastic plate and the wire fixing block. Then, the round rod is manually rotated to make the connecting piece move toward the transformer. The shaft, the hanger and the support plate move synchronously with the connecting piece. When the U-shaped end of the wire is located between the upper ends of the connecting pieces, the rotation of the round rod is stopped. Then, the shaft is manually inserted between the upper ends of the connecting pieces. The installed shaft is located in the U-shaped end of the wire, and the transverse section of the U-shaped end of the wire is placed on the shaft. At this time, the U-shaped end of the wire is supported by the support plate as a whole, that is, the shaft and the support plate as a whole can play a role of external fixation for the U-shaped end of the wire.

[0010] Preferred technical solution one: a vertical electric push rod is connected between the lower end of the wiring board and the right end of the fixed cover shell, and the vertical electric push rods are arranged symmetrically front to back. After the transformer is fixed to the docking plate by matching bolts, the wiring board is pushed upward by the vertical electric push rod, and the wire fixing block moves synchronously with the wiring board until the wires can be placed horizontally in the wire fixing block. On the basis of the vertical electric push rod, the overall height of the wiring board and the wire fixing block can be adaptively adjusted according to the height of the transformer. In this way, the model range of transformers that can be adapted to the protective cover as a whole is expanded.

[0011] Preferred technical solution two: the lower end of the wire fixing block is slidably connected to the inner bottom wall of the wire trough opened at the upper end of the wiring board, and rubber strips are symmetrically installed on the left and right inner walls of the wire trough. The wire fixing block is clamped between the rubber strips. The wire fixing block can move along the wire trough under manual action, so as to adjust the position of the wire fixing block according to the position of the wire, and avoid bending the wires to place them in the wire fixing block to the greatest extent. The rubber strip is provided to increase the movement resistance of the wire fixing block so that the wire fixing block cannot move along the wire trough by itself when no one is working.

[0012] Preferred technical solution three: the connecting piece includes a track plate, a built-in electric slider and an L-shaped plate, the track plate is installed at the left end of the round rod, and the built-in electric slider is installed at the opposite end of the track plate. The side end of the shaft is clamped with a connecting block, and an L-shaped plate is connected between the connecting block and the upper end of the built-in electric slider. The round rod is manually rotated to make the connecting piece move toward the transformer, and the shaft, hanger and support plate move synchronously with the connecting piece. When the U-shaped end of the wire is located between the upper ends of the connecting pieces, the rotation of the round rod is stopped, and then the L-shaped plate is moved upward by the built-in electric slider, and the connecting block moves synchronously therewith. When the point on the upper end of the connecting block for the shaft to be connected is connected to the upper end of the U-shaped end of the wire, the shaft is manually inserted between the connecting blocks. The installed shaft is located in the U-shaped end of the wire, and the lateral section of the U-shaped end of the wire is placed on the shaft. When using the track plate, the built-in electric slider and the L-shaped plate, the height position of the shaft can be adjusted according to the height size of the transformer. As a result, the model range of transformers adapted to the internal fixed component is expanded.

[0013] Preferred technical solution four: The hanging fixture includes a fixed block and a cylinder, the fixed block is installed at the lower end of the right end face of the connecting block, the right end of the fixed block is installed with a cylinder by threaded cooperation, the lower end of the cylinder is rotatably connected to the right end face of the support plate by a protrusion, and the cylinder is manually rotated to drive the protrusion and the support plate to move upward as a whole, so that the U-shaped ends of the wires with different vertical dimensions can be supported by the support plate.

[0014] Preferred technical solution five: Spring telescopic rods are symmetrically installed on the left and right ends of the fixed cover shell through threaded cooperation. The connecting parts and the vertical electric push rods are arranged symmetrically about the spring telescopic rods front and back. The telescopic ends of the spring telescopic rods are installed with side abutment plates, and the side abutment plates are located in the fixed cover shell. After the transformer is fixed to the docking plate by matching bolts, the spring telescopic rod is manually rotated to move the side abutment plate toward the transformer until the side abutment plate is tightly against the transformer. However, the spring telescopic rod is not in a fully compressed state at this time. This operation is to enable the side abutment plate and the spring telescopic rod as a whole to play a buffering and shock-absorbing role when the cover body and the transformer as a whole are subjected to external force.

[0015] Preferred technical solution six: rubber gaskets are installed at the opposite ends of the side abutment plates, and the rubber gaskets are used to further improve the overall buffering and shock-absorbing effect of the side abutment plates and the spring telescopic rods, and also to prevent deformation of the contact portion between the transformer and the side abutment plates.

[0016] Preferred technical solution seven: The left end face of the side support plate is provided with ventilation holes, which are evenly arranged along the circumference of the spring telescopic rod. The rubber gasket is a circular ring structure, and the ventilation holes are opposite to the inside of the rubber gasket. The purpose of setting the rubber gasket as a circular ring structure and providing ventilation holes on the surface of the side support plate is: on the basis of ensuring that the rubber gasket can play a role in improving the buffering and shock absorbing effect, the area covered by the transformer is reduced, thereby facilitating the heat dissipation of the transformer.

[0017] Preferred technical solution eight: A heat dissipation groove is arranged on the right side of the shaft, and the heat dissipation groove is opened at the right end of the movable cover shell. A gauze plate is clamped in the heat dissipation groove, and an L-shaped auxiliary reinforcement plate is installed at the right end of the upper end surface of the gauze plate. A connecting block with a hollow structure is installed on the right end surface of the movable cover shell, and the horizontal section of the auxiliary reinforcement plate is inserted into the connecting block. The heat dissipation groove is opened to facilitate better heat dissipation inside the cover body, and the gauze plate is set to prevent dust and other impurities from entering the cover body to avoid excessive impurities adhering to the surface of the transformer. The auxiliary reinforcement plate is moved forward manually until the horizontal section of the auxiliary reinforcement plate is separated from the connecting block, and then the gauze plate can be quickly removed and completely cleaned.

[0018] Preferred technical solution nine: fan plates are arranged at equal distances from the front to the back in the wire outlet slot, and pins are symmetrically rotatably installed at the upper and lower ends of the fan plates. An ear block is connected between the end of the pin away from the fan plate and the left end face of the movable cover shell. By manually rotating the fan plate adjacent to the wire, the fan plate is changed from a state parallel to the wire outlet slot to a state perpendicular to it, and the external connection end of the wire can pass through between adjacent fan plates, and the remaining fan plates remain parallel to the wire outlet slot, that is, the remaining part of the wire outlet slot after removing the wire passing-through part remains basically closed under the action of the fan plate.

[0019] The present invention has the following beneficial effects: 1. The upper and lower parts of the cover body provided by the present invention adopt an independently movable assembly structure. On this basis, the transformer inspection work can be carried out without disassembling or moving the transformer, so that the operator can inspect or clean the transformer more conveniently, and the cover body can also shield and protect the outside of the transformer to prevent workers from accidentally touching the transformer and a large amount of impurities from adhering to the surface of the transformer.

[0020] 2. The present invention can utilize internal fixing components to implement independent external fixing treatment on the wires, thereby preventing the wires from getting entangled with each other or shaking randomly under the action of external forces, thereby improving the connection stability between the transformer and the external equipment.

[0021] 3. The overall height of the wiring board and the wire fixing block in the present invention can be adaptively adjusted according to the height of the transformer. At the same time, the position of the wire fixing block on the wiring board can be adjusted separately according to the position of the wires. In this way, the range of transformer models that the protective cover can adapt to is expanded.

[0022] 4. In the present invention, when the track plate, the built-in electric slider and the L-shaped plate are used, the height position of the lap shaft can be adjusted according to the height size of the transformer, thereby expanding the model range of the transformer that the internal fixing component is adapted to.

[0023] 5. When the cover body and the transformer as a whole are subjected to external force, the side abutment plates and the spring telescopic rods can be used as a whole to buffer and reduce shock on the transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention with a transformer fixed inside.

[0026] Figure 2 for Figure 1 Schematic diagram of the left-view stereoscopic structure.

[0027] Figure 3 for Figure 1 Left view plan view.

[0028] Figure 4 It is a three-dimensional structural schematic diagram of the fixed cover and the inner fixing parts clamping the transformer.

[0029] Figure 5 for Figure 4 Schematic diagram of the top view of the three-dimensional structure.

[0030] Figure 6 for Figure 5 Schematic diagram of the three-dimensional structure of the structure after removing the transformer.

[0031] Figure 7 It is a schematic diagram of the three-dimensional structure of the inner fixing component.

[0032] Figure 8 for Figure 7 sectional view of .

[0033] Fig. 9 It is a schematic diagram of the three-dimensional structure of the movable cover shell, auxiliary reinforcement plate, connecting block and mesh plate.

[0034] Fig.10 It is a schematic diagram of the three-dimensional structure of the concave plate, the wire outlet groove and the fan plate.

[0035] Fig.11 It is a schematic diagram of the three-dimensional structure of the wiring board, the wire fixing block and the vertical moving electric push rod.

[0036] Fig.12 for Fig.11 Magnified view of the X area in the middle.

[0037] Fig.13 for Fig.11 Right view of .

[0038] Fig.14 It is a schematic diagram of the three-dimensional mechanism of the spring telescopic rod and the side abutment plate.

[0039] Fig.15 It is a schematic diagram of the three-dimensional structure of the rubber gasket and the side abutment plate.

[0040] Fig.16 It is a schematic diagram of the three-dimensional mechanism of the connecting parts, the shaft, the support plate and the round rod.

[0041] Fig.17 for Fig.16 Magnified view of the middle Y region.

[0042] Fig.18 for Fig.16 Magnified view of the middle Z region.

[0043] In the figure: 1, cover body; 2, inner fixing part; 10, fixed cover shell; 11, movable cover shell; 100, concave plate; 101, hollow block; 102, insert plate; 103, stop plate; 104, docking plate; 110, wire outlet groove; 111, fan plate; 20, wiring board; 21, wire fixing block; 22, elastic plate; 23, round rod; 24, connecting piece; 25, sling; 26, hanging piece; 27, support plate; 200, vertical moving electric push rod; 201, rubber strip; 240, track plate; 241, built-in electric slider; 242, L-shaped plate; 260, fixed block; 261, cylinder; 105, spring telescopic rod; 106, side plate; 107, rubber gasket; 250, mesh plate; 251, auxiliary fixing plate; 252, connecting block. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A protective cover for a transformer of a numerically controlled machine tool comprises a cover body 1 and an inner fixing part 2. The cover body 1 is composed of a fixed cover shell 10 and a movable cover shell 11. The lower end of the movable cover shell 11 is slidably connected to the upper end of the fixed cover shell 10. The inner fixing part 2 is arranged inside the cover body 1.

[0046] See also Figure 1 , Figure 2 , Figure 6 , Figure 8 and Fig.10The fixed cover shell 10 and the movable cover shell 11 each include two concave plates 100 that are symmetrically arranged on the left and right sides, with the open ends of the concave plates 100 facing inward, wherein the front and rear ends of the left concave plate 100 are symmetrically mounted with hollow blocks 101, and the front and rear ends of the right concave plate 100 are symmetrically mounted with insert plates 102, the insert plate 102 is plugged into the hollow block 101, and the left end of the insert plate 102 is clamped with a stop plate 103, the stop plate 103 is located on the left side of the hollow block 101, and the stop plate 103 is perpendicular to the insert plate 102, the opposite ends of the two concave plates 100 constituting the fixed cover shell 10 are mounted with docking plates 104, the two docking plates 104 are plugged in, the upper ends of the two concave plates 100 constituting the movable cover shell 11 are both mounted with cover plates, and the left end of the movable cover shell 11 is provided with a wire outlet slot 110, The fixed cover 10 is assembled in advance by inserting the plate 102, the hollow plate and the stop plate 103, and the docking plate 104 is plugged into a whole. The movable cover 11 is not assembled temporarily, and then the transformer is manually placed on the upper end of the docking plate 104 and the lower end of the transformer is fixed to the docking plate 104 by matching bolts, and then the wires carried by the transformer are externally fixed by the internal fixing component 2, and the wires connected to the external equipment pass through the outlet groove 110, and then the two concave plates 100 constituting the movable cover 11 are manually moved relative to each other until the two concave plates 100 are docked, and then the movable cover 11 is assembled by inserting the plate 102, the hollow plate and the stop plate 103. At this time, the transformer is completely located in the cover body 1, and then the cover body 1 and the transformer are installed as a whole on the CNC machine tool.

[0047] The cover 1 can provide external shielding and protection for the transformer, thereby preventing external forces from damaging the transformer or affecting the normal operation of the transformer. At the same time, during the operation of the CNC machine tool, the presence of the cover can also greatly reduce the dust attached to the surface of the transformer.

[0048] When the cover body 1 and the transformer are assembled as a whole, when it is necessary to inspect or clean the transformer, the movable cover shell 11 can be manually disassembled and assembled, and the concave plates 100 constituting the movable cover shell 11 can be moved to the two ends of the fixed cover shell 10, so that the movable cover shell 11 is in an open state. At this time, the transformer appears in the field of vision of the operator, and the operator can smoothly carry out the inspection. Because the transformer is still fixed in the fixed cover shell 10, there is no need to worry about the transformer being offset due to external force during the inspection. In summary, the upper and lower parts of the cover body 1 adopt an independently movable assembly structure in order to carry out the inspection of the transformer without disassembling or moving the transformer, so that the operator can inspect or clean the transformer more conveniently.

[0049] See also Figure 2 , Figure 3 and Fig.10, fan plates 111 are arranged equidistantly from front to back in the outlet groove 110, and pins are symmetrically rotatably installed at the upper and lower ends of the fan plates 111, and an ear block is connected between the end of the pin away from the fan plate 111 and the left end surface of the movable cover 11, and the fan plate 111 adjacent to the wire is manually rotated to change the state of the fan plate 111 from being parallel to the outlet groove 110 to being perpendicular to it, and the external connection end of the wire can pass through between the adjacent fan plates 111, and the remaining fan plates 111 remain parallel to the outlet groove 110, that is, the remaining part of the outlet groove 110 after removing the wire passing part remains in a basically closed state under the action of the fan plates 111, and the purpose of setting the fan plates 111 and performing the above-mentioned operations is to reduce the volume of the channel through which external dust can enter the cover body 1 on the basis that the cover body 1 can dissipate heat with the help of the outlet groove 110, and reduce the amount of dust attached to the surface of the transformer.

[0050] See also Figure 6 , Figure 7 , Figure 8 , Fig.14 , Fig.15 and 16 The left and right ends of the fixed cover 10 are symmetrically installed with spring telescopic rods 105 through threaded matching. The connecting piece 24 and the vertical electric push rod 200 are arranged symmetrically about the spring telescopic rod 105. The telescopic end of the spring telescopic rod 105 is installed with a side abutment plate 106. The side abutment plate 106 is located in the fixed cover 10. After the transformer is fixed to the docking plate 104 by matching bolts, the spring telescopic rod 105 is manually rotated to make the side abutment plate 106 move toward the transformer until the side abutment plate 106 is pressed against the transformer. However, the spring telescopic rod 105 is not in a fully compressed state at this time. This operation is to enable the side abutment plate 106 and the spring telescopic rod 105 to play a buffering and shock-absorbing role as a whole when the cover body 1 and the transformer as a whole are subjected to external force.

[0051] See also Fig.14 and Fig.15 A rubber gasket 107 is installed at the opposite end of the side support plate 106. The rubber gasket 107 is used to further improve the overall buffering and shock-absorbing effect of the side support plate 106 and the spring telescopic rod 105, and also to prevent deformation of the contact portion between the transformer and the side support plate 106.

[0052] See also Fig.14 and Fig.15The left end surface of the side abutment plate 106 is provided with ventilation holes, which are evenly arranged along the circumference of the spring telescopic rod 105. The rubber gasket 107 is a circular ring structure, and the ventilation holes are opposite to the inside of the rubber gasket 107. The purpose of setting the rubber gasket 107 as a circular ring structure and providing ventilation holes on the surface of the side abutment plate 106 is to reduce the area covered by the transformer while ensuring that the rubber gasket 107 can play a role in improving the buffering and shock absorbing effect, so as to facilitate the heat dissipation of the transformer.

[0053] See also Figure 6 , Figure 7 , Figure 8 , Fig.11 , Fig.12 , Fig.13 , Fig.16 , Fig.17 and Fig.18 The inner fixed component 2 includes a wiring board 20, a wire fixing block 21, an elastic plate 22, a round rod 23, a connecting piece 24, a shaft 25, a hanging piece 26 and a supporting plate 27. The wiring board 20 is provided at the upper left of the fixed cover 10. The wiring board 20 is located in the movable cover 11. The upper end of the wiring board 20 is provided with a U-shaped wire fixing block 21 at equal distances from front to back. The open end of the wire fixing block 21 faces upward, and an elastic plate 22 is installed at the upper end of the wire fixing block 21. One end of the elastic plate 22 is tilted downward. The wiring board 20 is located on the right side of the outlet groove 110. Round rods 23 are symmetrically arranged on the right side of the wiring board 20. The round rods 23 are connected to the right end of the fixed cover 10 by threaded fitting. The left end of the round rod 23 A connecting piece 24 is rotatably connected, and the connecting piece 24 is located in the fixed cover 10. A shaft 25 is clamped between the upper ends of the connecting piece 24. A hanging piece 26 is installed on the right end face of the upper end of the connecting piece 24. A supporting plate 27 is installed on the lower left end of the hanging piece 26. The supporting plate 27 is located directly below the shaft 25. The wires supporting the transformer are installed at the upper end of the transformer, and the wires are connected from the upper left end of the transformer. The installation shape of the wires at the upper right end of the transformer is U-shaped. According to the installation state of the wires on the transformer, the internal fixing component 2 is used to implement independent external fixing treatment on the wires, so as to avoid the wires from being entangled with each other or shaking randomly under the action of external force, thereby improving the connection stability between the transformer and the external equipment.

[0054] The specific external fixing processing steps are as follows: fix the transformer on the docking plate 104 by matching bolts, at which time the transformer is located between the wiring board 20 and the shaft 25, then manually lift the elastic plate 22 and place the wires to be connected to the external device one by one in the wire fixing block 21, then loosen the elastic plate 22, the elastic plate 22 is tightly attached to the surface of the wire, and the wire is clamped between the elastic plate 22 and the wire fixing block 21, then manually rotate the round rod 23 to make the connecting piece 24 move toward the transformer, and the hanging piece 26 and the supporting plate 27 move with the connecting piece 24. The connecting piece 24 moves synchronously, and when the U-shaped end of the wire is located between the upper ends of the connecting piece 24, the rotation of the round rod 23 is stopped, and then the axle 25 is manually inserted between the upper ends of the connecting piece 24. The installed axle 25 is located in the U-shaped end of the wire, and the transverse section of the U-shaped end of the wire is placed on the axle 25. At this time, the U-shaped end of the wire is supported by the support plate 27 as a whole, that is, the axle 25 and the support plate 27 as a whole can play a role of external fixing of the U-shaped end of the wire, thereby improving the overall stability of the U-shaped end of the wire.

[0055] See also Figure 7 , Figure 8 and Fig.11 A vertical electric push rod 200 is connected between the lower end of the wiring board 20 and the right end of the fixed cover shell 10. The vertical electric push rod 200 is arranged symmetrically front and back. After the transformer is fixed to the docking plate 104 by matching bolts, the wiring board 20 is pushed upward by the vertical electric push rod 200, and the wire fixing block 21 moves synchronously with the wiring board 20 until the wires can be placed horizontally in the wire fixing block 21. On the basis of the vertical electric push rod 200, the overall height of the wiring board 20 and the wire fixing block 21 can be adaptively adjusted according to the height of the transformer. In this way, the model range of the transformer that can be adapted to the protective cover as a whole is expanded.

[0056] See also Fig.11 and Fig.12 The lower end of the wire fixing block 21 is slidably connected to the inner bottom wall of the wire groove opened at the upper end of the wiring board 20, and rubber strips 201 are symmetrically installed on the left and right inner walls of the wire groove. The wire fixing block 21 is clamped between the rubber strips 201. The wire fixing block 21 can move along the wire groove under manual action, so as to adjust the position of the wire fixing block 21 according to the position of the wire, and avoid bending the wire to place it in the wire fixing block 21 to the greatest extent. The rubber strip 201 is set to increase the movement resistance of the wire fixing block 21, so that the wire fixing block 21 cannot move along the wire groove by itself when no one is working.

[0057] See also Fig.16 , Fig.17 and Fig.18The connecting member 24 includes a track plate 240, a built-in electric slider 241 and an L-shaped plate 242. The track plate 240 is installed at the left end of the round rod 23, and the built-in electric slider 241 is installed at the opposite end of the track plate 240. The side end of the shaft 25 is clamped with a connecting block, and the L-shaped plate 242 is connected between the connecting block and the upper end of the built-in electric slider 241. The round rod 23 is manually rotated to make the connecting member 24 move toward the transformer, and the shaft 25, the hanging member 26 and the supporting plate 27 move synchronously with the connecting member 24. When the U-shaped end of the wire is located between the upper ends of the connecting member 24, the round rod 23 is stopped, and then the connecting member 24 is connected to the transformer. The built-in electric slider 241 causes the L-shaped plate 242 to move upward, and the connecting block moves synchronously therewith. When the point on the upper end of the connecting block for the connection of the cam shaft 25 is connected to the upper end of the U-shaped end of the wire, the cam shaft 25 is manually inserted between the connecting blocks. The installed cam shaft 25 is located inside the U-shaped end of the wire, and the lateral section of the U-shaped end of the wire is placed on the cam shaft 25. When using the track plate 240, the built-in electric slider 241 and the L-shaped plate 242, the height position of the cam shaft 25 can be adjusted according to the height size of the transformer. As a result, the model range of transformers adapted to the internal fixed component 2 is expanded.

[0058] See also Fig.16 and Fig.17 The hanger 26 includes a fixed block 260 and a cylinder 261. The fixed block 260 is installed at the lower end of the right end surface of the connecting block. The right end of the fixed block 260 is installed with a cylinder 261 by threaded fitting. The lower end of the cylinder 261 is rotatably connected to the right end surface of the support plate 27 through a protrusion. By manually rotating the cylinder 261, the cylinder 261 drives the protrusion and the support plate 27 to move upward as a whole, so that the U-shaped ends of the wires with different vertical sizes can be supported by the support plate 27.

[0059] See also Figure 1 and Fig. 9 A heat dissipation groove is arranged on the right side of the shaft 25, and the heat dissipation groove is opened at the right end of the movable cover shell 11. A mesh plate 250 is clamped in the heat dissipation groove, and an L-shaped auxiliary reinforcement plate 251 is installed at the right end of the upper end surface of the mesh plate 250. A connecting block 252 with a hollow structure is installed on the right end surface of the movable cover shell 11. The horizontal section of the auxiliary reinforcement plate 251 is inserted into the connecting block 252. The heat dissipation groove is opened to facilitate better heat dissipation inside the cover body 1, and the mesh plate 250 is set to prevent dust and other impurities from entering the cover body 1, so as to avoid excessive impurities adhering to the surface of the transformer. The auxiliary reinforcement plate 251 is moved forward manually until the horizontal section of the auxiliary reinforcement plate 251 is separated from the connecting block 252, and then the mesh plate 250 can be quickly removed and the mesh plate 250 can be thoroughly cleaned.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A protective cover for a transformer of a numerically controlled machine tool, comprising a cover body (1) and an inner fixing component (2), characterized in that: The cover body (1) is composed of a fixed cover shell (10) and a movable cover shell (11), the lower end of the movable cover shell (11) is slidably connected to the upper end of the fixed cover shell (10), and an internal fixing component (2) is provided inside the cover body (1); The fixed cover (10) and the movable cover (11) both comprise two concave plates (100) arranged symmetrically on the left and right sides, the open ends of the concave plates (100) facing inwards, wherein hollow blocks (101) are symmetrically mounted on the front and rear ends of the left concave plate (100), and insertion plates (102) are symmetrically mounted on the front and rear ends of the right concave plate (100), the insertion plates (102) are plugged into the hollow blocks (101), and a stop plate (102) is clamped on the left end of the insertion plates (102). 103), the stop plate (103) is located on the left side of the hollow block (101), and the stop plate (103) is perpendicular to the insertion plate (102), the opposite ends of the two concave plates (100) constituting the fixed cover (10) are installed with docking plates (104), the two docking plates (104) are plugged into each other, the upper ends of the two concave plates (100) constituting the movable cover (11) are both installed with cover plates, and the left end of the movable cover (11) is provided with a wire outlet slot (110); The inner fixing component (2) comprises a wiring board (20), a wire fixing block (21), an elastic plate (22), a round rod (23), a connecting piece (24), a sling (25), a hanging piece (26) and a supporting plate (27). The wiring board (20) is provided at the upper left of the fixed cover (10). The wiring board (20) is located in the movable cover (11). The upper end of the wiring board (20) is provided with a U-shaped wire fixing block (21) at equal distances from the front to the back. The open end of the wire fixing block (21) faces upward. The upper end of the wire fixing block (21) is installed with an elastic plate (22). One end of the elastic plate (22) is tilted downward. The plate (20) is located on the right side of the outlet slot (110), and round rods (23) are symmetrically arranged on the right side of the wiring plate (20). The round rods (23) are connected to the right end of the fixed cover (10) by threaded matching. The left end of the round rod (23) is rotatably connected to a connecting piece (24). The connecting piece (24) is located in the fixed cover (10). A sling (25) is clamped between the upper ends of the connecting pieces (24). A hanging piece (26) is installed on the right end surface of the upper end of the connecting piece (24). A supporting plate (27) is installed on the lower left end of the hanging piece (26). The supporting plate (27) is located directly below the sling (25). The connecting member (24) comprises a track plate (240), a built-in electric slider (241) and an L-shaped plate (242); the track plate (240) is mounted on the left end of the round rod (23); the built-in electric slider (241) is mounted on the opposite end of the track plate (240); a connecting block is clamped on the side end of the shaft (25); and the L-shaped plate (242) is connected between the connecting block and the upper end of the built-in electric slider (241); The hanging member (26) comprises a fixing block (260) and a cylinder (261), wherein the fixing block (260) is mounted on the lower end of the right end surface of the connecting block, the cylinder (261) is mounted on the right end of the fixing block (260) by threaded engagement, and the lower end of the cylinder (261) is rotatably connected to the right end surface of the supporting plate (27) by a protrusion; The left and right ends of the fixed cover (10) are symmetrically mounted with spring telescopic rods (105) by means of threaded engagement, the connecting piece (24) and the vertical electric push rod (200) are both symmetrically arranged front and back about the spring telescopic rod (105), a side abutment plate (106) is mounted at the telescopic end of the spring telescopic rod (105), and the side abutment plate (106) is located inside the fixed cover (10); A heat dissipation groove is arranged on the right side of the shaft (25), and the heat dissipation groove is opened at the right end of the movable cover shell (11). A mesh plate (250) is clamped in the heat dissipation groove, and an L-shaped auxiliary fixing plate (251) is installed at the right end of the upper end surface of the mesh plate (250). A connecting block (252) with a hollow structure is installed on the right end surface of the movable cover shell (11), and the horizontal section of the auxiliary fixing plate (251) is inserted into the connecting block (252).

2. A protective cover for a CNC machine tool transformer according to claim 1, characterized in that: A vertical electric push rod (200) is connected between the lower end of the wiring board (20) and the right end of the fixed cover shell (10), and the vertical electric push rod (200) is symmetrically arranged front to back.

3. The protective cover for a CNC machine tool transformer according to claim 1, characterized in that: The lower end of the wire fixing block (21) is slidably connected to the inner bottom wall of the wire slot provided at the upper end of the wiring board (20), and rubber strips (201) are symmetrically installed on the left and right inner walls of the wire slot, and the wire fixing block (21) is clamped between the rubber strips (201).

4. The protective cover for a CNC machine tool transformer according to claim 1, characterized in that: The opposite ends of the side abutment plates (106) are provided with rubber gaskets (107).

5. A protective cover for a CNC machine tool transformer according to claim 4, characterized in that: The left end surface of the side abutment plate (106) is provided with ventilation holes, which are evenly arranged along the circumference of the spring telescopic rod (105). The rubber gasket (107) is a circular ring structure, and the ventilation holes are opposite to the inside of the rubber gasket (107).

6. The protective cover for a CNC machine tool transformer according to claim 1, characterized in that: Fan plates (111) are arranged in equal distance from the front to the back in the outlet groove (110), and pins are symmetrically rotatably mounted at the upper and lower ends of the fan plates (111), and an ear block is connected between the end of the pin away from the fan plate (111) and the left end surface of the movable cover (11).

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