A hole opening device and method for processing low voltage switch cabinet

Abstract

The present invention discloses a hole-opening device and method for processing a low-voltage switch cabinet, and specifically relates to the technical field of cabinet processing. The hole-opening device for processing a low-voltage switch cabinet comprises a cabinet part, and a positioning mechanism is installed on the cabinet part, and the positioning mechanism is composed of a No. 1 circular ring part and a No. 2 circular ring part. The present invention adopts an annular electromagnet after power-on to strongly adsorb the annular permanent magnet. In the process of magnetic attraction and fixation, the limiting components on the No. 1 circular ring part and the No. 2 circular ring part are linked to act, so that the friction ring carries a certain pressure and contacts the cabinet part with friction, and multiple adsorption holes are also linked to provide a certain adsorption force at the positions of multiple adsorption holes, thereby improving the stability of positioning and not being limited by the size of the cabinet part. When the hole-opening mechanism is working, the synchronous linkage protection mechanism is deployed to form a protective space on the No. 1 circular ring part to avoid the problem of splashing of opening waste chips, thereby improving the safety of the hole-opening work.

Description

Technical Field

[0001] The invention relates to the technical field of cabinet processing, and in particular to a hole opening device and method for processing a low-voltage switch cabinet. Background Art

[0002] Low-voltage switchgear is a kind of equipment used in power distribution system, mainly used to control, protect and distribute electric energy. It usually consists of metal cabinet, switchgear, protection components, cable wiring and control system.

[0003] When electrical equipment needs to be installed in a switch cabinet, holes need to be drilled so that the cables of the electrical equipment can pass through the cabinet to connect to the power supply and other equipment. However, since the cable entrances and exits of the switch cabinet are carried out according to the installation position and the positions of the cable entrances and exits are not fixed, holes need to be drilled after the switch cabinet is formed to ensure that the cables pass through the holes to complete subsequent connection work. However, the drilling equipment and the cabinet cannot be well positioned at present, so drilling deviation is prone to occur.

[0004] A cabinet drilling device for processing a low-voltage switch cabinet is disclosed in a patent application with reference publication number CN117532047B. The drilling device is used by setting a positioning mechanism. Before drilling, the telescopic arms at the four corners are used to support the cabinet, so that the position of the required drilling hole can be more accurately determined. At the same time, when the inside of the cabinet is supported by the right-angle rubber plates at the four corners, the slight deformation of the right-angle rubber plates is used to offset the vibration occurring during the drilling process, thereby avoiding the deviation of the drilling position or the increase or unevenness of the drilling diameter due to vibration.

[0005] The drilling device is positioned by the telescopic arm on the positioning mechanism against the cabinet, but in actual operation, the positioning mechanism is not adaptable enough due to the change in cabinet size, and cannot be quickly matched to perform drilling work on cabinets of different sizes. Moreover, the overall installation and disassembly is time-consuming and laborious, and the angle and length of the telescopic arm of the positioning mechanism need to be repeatedly adjusted manually, which reduces the drilling efficiency.

[0006] At the same time, the overall supporting stability of the above-mentioned drilling device is not ideal. When the positioning mechanism is used for a cabinet with a larger size, the stability is reduced due to the excessive extension length of the telescopic arm, and a good supporting effect cannot be achieved, which can easily lead to the problem of displacement of the drilling device and affect the overall hole opening accuracy. Summary of the invention

[0007] The object of the present invention is to provide a hole-making device and method for processing a low-voltage switch cabinet to solve the above-mentioned technical problems.

[0008] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0009] The present invention discloses a hole-opening device for processing a low-voltage switch cabinet, comprising a cabinet part, on which a positioning mechanism is installed, the positioning mechanism is composed of a No. 1 circular ring part and a No. 2 circular ring part, an annular electromagnet is hidden and installed on the side of the No. 1 circular ring part facing the cabinet part, an annular permanent magnet is hidden and installed on the side of the No. 2 circular ring part facing the cabinet part, limiting components are installed on both the No. 1 circular ring part and the No. 2 circular ring part, the limiting components are used to complete the stable limiting work of the No. 1 circular ring part, the No. 2 circular ring part and the cabinet part, a hole-opening mechanism is added to the No. 1 circular ring part, the positioning action of the hole-opening mechanism and the cabinet part is completed by the positioning mechanism, and a protective mechanism is added to the No. 1 circular ring part, the protective mechanism is coordinated with the hole-opening mechanism, and the protective work is completed by the action of the hole-opening mechanism to link the protective mechanism to extend.

[0010] Furthermore, the two limit assemblies each include an annular cavity opened on the No. 1 and No. 2 circular ring members, a friction ring is slidably installed in the annular cavity, and two guide rods are symmetrically installed on the top of the friction ring.

[0011] Furthermore, two manual slides are installed on the upper surfaces of the No. 1 and No. 2 circular rings, and limit plates are installed at the output ends of the two manual slides, and multiple pressure springs are installed between the friction ring and the annular cavity.

[0012] Furthermore, a plurality of adsorption holes are provided in a circular shape on the friction ring, a No. 1 piston is slidably and sealedly installed in each adsorption hole, a piston rod is concentrically and fixedly installed on the top of each No. 1 piston, a No. 1 rack is hidden on one side of each piston rod, a plurality of No. 2 racks are hidden on the inner wall of the annular cavity, and a gear is rotatably installed on one side of the piston rod on the friction ring through a bracket, and the gear is meshed and connected with the No. 1 rack and the No. 2 rack respectively.

[0013] Furthermore, the hole-opening mechanism includes vertical rods symmetrically installed on both sides of the upper surface of the No. 1 circular ring member, a No. 1 retaining ring is installed on the top of the two vertical rods, a No. 2 retaining ring is sleeved on the outside of the two vertical rods and located below the No. 1 retaining ring, a sliding ring is slidably sleeved on the outside of the two vertical rods, and a hole-opening motor is installed between the two sliding rings, a drill chuck is installed at the output end of the hole-opening motor, and a hole-opening drill bit is detachably installed on the drill chuck.

[0014] Furthermore, damping springs are sleeved on the outside of the two vertical rods, and the two damping springs are respectively located between the sliding ring and the second retaining ring.

[0015] Furthermore, the protective mechanism includes an annular air chamber concentrically installed on the No. 1 circular ring, an annular ring is installed above the annular air chamber, an elastic cloth is installed between the annular ring and the annular air chamber, a plurality of telescopic parts are arranged in a circular array on the No. 1 circular ring, and the plurality of telescopic parts are all connected to the annular ring, an extrusion chamber is installed on one side of the upper surface of the No. 1 circular ring, and a No. 2 piston is installed in the extrusion chamber in a sliding seal, a push arm is installed on the top of the No. 2 piston, and the top of the push arm is detachably fixedly connected to one of the sliding rings, an exhaust pipe is installed on one side of the bottom of the extrusion chamber, and the exhaust pipe is connected to the annular air chamber, and an air intake pipe is installed on the other side of the bottom of the extrusion chamber.

[0016] Furthermore, each telescopic member includes a telescopic sleeve, an end cover is detachably installed on the top of the telescopic sleeve, a No. 3 piston is slidably installed in the telescopic sleeve, a telescopic rod is concentrically installed on the top of the No. 3 piston, and the top of the telescopic rod is detachably fixedly connected to the annular ring, a return spring is sleeved on the outside of the telescopic rod, and the return spring is correspondingly arranged between the end cover and the No. 3 piston, and an interconnecting pipe is installed on one side of the bottom of the telescopic sleeve, and the interconnecting pipe is interconnected with the annular air chamber.

[0017] Furthermore, a horizontal plate is installed on one side of the two manual slides of the No. 1 circular ring member, and a blocking plate is installed above each horizontal plate. The blocking plate extends to the top of the annular ring accordingly. A limit rod is slidably penetrated on one side of the horizontal plate, and the top of the limit rod is fixedly connected to the lower surface of the blocking plate. An adjusting screw is penetrated on one side of the limit rod on the horizontal plate through a threaded engagement, and the top of the adjusting screw is rotatably connected to the lower surface of the blocking plate.

[0018] The present invention also provides a hole-making method for processing a low-voltage switch cabinet, and the hole-making method specifically comprises the following steps:

[0019] Step 1: First, install the No. 1 and No. 2 circular ring parts on the inner and outer walls of the cabinet body respectively. After the power is turned on, the annular electromagnet strongly adsorbs the annular permanent magnet, so that the No. 1 and No. 2 circular ring parts are magnetically fixed;

[0020] Step 2: After that, the staff pushes the hole-opening mechanism downward to contact the cabinet part to complete the hole-opening work;

[0021] Step 3: When the hole-opening mechanism is working, the synchronous linkage protection mechanism is deployed, thereby forming a protection space on the No. 1 ring to avoid the problem of waste chips splashing during the hole-opening;

[0022] Step 4: Finally, disassemble the No. 1 and No. 2 circular ring parts and the cabinet parts to complete the hole opening process.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention is provided with a positioning mechanism, and the annular electromagnet generates a strong adsorption force after being energized, so as to magnetically adsorb and fix the annular permanent magnet. When the No. 1 annular member and the No. 2 annular member are clamped and approached to each other, the friction rings in the No. 1 annular member and the No. 2 annular member are prompted to shrink in the annular cavity, and the pressure spring provides a reverse thrust for the friction ring. When the friction ring shrinks in the annular cavity, it provides an additional upward movement amount to the No. 1 rack, so that the piston rod and the No. 1 piston move upward in the adsorption hole to perform piston action, so that adsorption force is formed on multiple adsorption holes, and the stability of the friction ring is further improved;

[0025] The present invention is provided with a hole-opening mechanism, and the operating handle is pushed, so that the two sliding rings are moved downward under the guidance of the two vertical rods, so that the hole-opening drill bit is close to the cabinet body to complete the hole-opening work. When the hole-opening drill bit moves downward, the damping spring provides a damping force for the downward movement of the hole-opening motor, which is beneficial for the staff to continue to advance and improves the stability of the hole-opening advancement;

[0026] The present invention is provided with a protective mechanism. When the hole-drilling motor moves downward, the linked push arm follows and moves downward, and is introduced into the multiple telescopic sleeves through the multiple interconnecting tubes, so that the No. 3 piston overcomes the reset spring in the telescopic sleeve and follows the upward movement. The telescopic rod drives the annular ring to move upward and stretch the elastic cloth during the upward movement, and the stretching distance of the telescopic cloth follows the downward movement of the hole-drilling motor to complete the follow-up cooperation, thereby achieving a dynamic protective effect. A protective space is formed by the elastic cloth and the annular ring, which can provide assistance to the hole-drilling work and avoid the splashing of waste chips.

[0027] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is the overall front view of the present invention;

[0029] Figure 2 It is a schematic diagram of installing the positioning mechanism of the present invention on a cabinet member;

[0030] Figure 3 It is a schematic diagram of the distribution of the positioning mechanism and the hole opening mechanism of the present invention;

[0031] Figure 4 It is a schematic diagram of the hole-opening mechanism of the present invention;

[0032] Figure 5 It is a schematic diagram of the positioning mechanism of the present invention;

[0033] Figure 6 It is a schematic diagram of the separation of the annular electromagnet and the first circular ring member of the present invention;

[0034] Figure 7 It is a schematic diagram of the structure of the limit assembly of the present invention;

[0035] Figure 8 It is a schematic diagram of installing the friction ring of the present invention in the annular cavity;

[0036] Fig. 9 It is a schematic diagram of the separation of the friction ring and the first circular ring member of the present invention;

[0037] Fig.10 It is a schematic diagram of the structure inside the annular cavity of the present invention;

[0038] Fig.11 It is a schematic diagram of the protection mechanism of the present invention;

[0039] Fig.12 It is a schematic diagram of the distribution of the annular air chamber and multiple telescopic parts of the present invention;

[0040] Fig.13 It is a schematic diagram of the distribution of the baffle plates and the cross plates of the present invention;

[0041] Fig.14 It is a schematic diagram of the telescopic member structure of the present invention;

[0042] Fig.15 For the present invention Figure 8 Enlarged schematic diagram at point A in the middle.

[0043] In the figure: 1, cabinet; 2, No. 1 circular ring; 3, No. 2 circular ring; 4, circular electromagnet; 5, circular permanent magnet; 6, circular cavity; 7, friction ring; 8, guide rod; 9, manual slide; 10, limit plate; 11, pressure spring; 12, adsorption hole; 13, No. 1 piston; 14, piston rod; 15, No. 1 rack; 16, No. 2 rack; 17, gear; 18, vertical rod; 19, No. 1 retaining ring; 20, No. 2 retaining ring; 21, sliding ring; 22, opening motor; 2 3. Drill chuck; 24. Drill bit for opening holes; 25. Damping spring; 26. Annular air chamber; 27. Annular ring; 28. Elastic cloth; 29. ​​Telescopic member; 291. Telescopic sleeve; 292. End cover; 293. No. 3 piston; 294. Telescopic rod; 295. Return spring; 296. Intercommunication pipe; 30. Extrusion chamber; 31. No. 2 piston; 32. Push arm; 33. Exhaust pipe; 34. Intake pipe; 35. Cross plate; 36. Blocking plate; 37. Limit rod; 38. Adjusting screw. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0045] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] Embodiment 1: The present invention provides a technical solution: Figures 1 to 15 As shown, a hole-opening device for processing a low-voltage switch cabinet comprises a cabinet member 1, on which a positioning mechanism is installed, the positioning mechanism is composed of a No. 1 circular ring member 2 and a No. 2 circular ring member 3, an annular electromagnet 4 is hidden and installed on the side of the No. 1 circular ring member 2 facing the cabinet member 1, and the top of the annular electromagnet 4 is in the same plane as the No. 1 circular ring member 2, a No. 1 annular area matching the annular electromagnet 4 is opened on the No. 1 circular ring member 2, and an annular permanent magnet 5 is hidden and installed on the side of the No. 2 circular ring member 3 facing the cabinet member 1, and the annular electromagnet 4 after power-on completes the adsorption of the annular permanent magnet 5, and the top of the annular permanent magnet 5 is in the same plane as the No. 2 circular ring member 3. A No. 2 annular area cooperating with the annular permanent magnet 5 is provided on the No. 2 annular member 3, and the No. 1 annular member 2 and the No. 2 annular member 3 are symmetrically installed on the inner wall and the outer wall of the cabinet member 1. Limiting components are installed on the No. 1 annular member 2 and the No. 2 annular member 3. The limiting components are used to complete the stable limiting work of the No. 1 annular member 2, the No. 2 annular member 3 and the cabinet member 1. An opening mechanism is added to the No. 1 annular member 2, and the positioning action of the opening mechanism and the cabinet member 1 is completed through the positioning mechanism, and a protective mechanism is added to the No. 1 annular member 2, and the protective mechanism cooperates with the opening mechanism, and the protective mechanism is extended through the action of the opening mechanism to complete the protective work.

[0047] Among them, electrical components such as the hole-opening motor 22 and the annular electromagnet 4 are all connected to switches through wires, and the switches are electrically connected to a controller, and the specific structure of the controller is not limited.

[0048] Embodiment 2: Based on the positioning mechanism provided in Embodiment 1, this embodiment provides a further technical solution for the positioning mechanism.

[0049] like Figures 5 to 10 As shown, the two limiting components both include an annular cavity 6 opened on the No. 1 circular ring member 2 and the No. 2 circular ring member 3, a friction ring 7 is slidably installed in the annular cavity 6, and a plurality of slideways cooperating with the friction ring 7 are opened and closed on the inner wall of the annular cavity 6, a silicone anti-skid pad is installed on the friction ring 7 facing the surface of the cabinet member 1, and two guide rods 8 are symmetrically installed on the top of the friction ring 7, the tops of the guide rods 8 on the two limiting components slide through the No. 1 circular ring member 2 and the No. 2 circular ring member 3 respectively, and limiting rings for limiting are installed on the tops of the two guide rods 8, and the limiting rings are detachably fixedly connected to the guide rods 8;

[0050] It is worth noting that: when positioning the hole opening mechanism: by providing a positioning mechanism, the No. 1 circular ring 2 and the No. 2 circular ring 3 are correspondingly fitted on the inner wall and the outer wall of the cabinet part 1 to complete the preliminary positioning. At this time, the friction ring 7 is pushed out of the annular cavity 6 by the pressure spring 11, and then the friction ring 7 firstly contacts with the cabinet part 1 by friction, ensuring the relative stability of the No. 1 circular ring 2, the No. 2 circular ring 3 and the cabinet part 1, and then the annular electromagnet 4 is energized, and the energized annular electromagnet 4 generates a strong adsorption force, thereby magnetically adsorbing and fixing the annular permanent magnet 5, so that the No. 1 circular ring 2 and the No. 2 circular ring 3 are relatively stable. The circular ring part 2 and the second circular ring part 3 are clamped and fitted on the cabinet part 1. In the path where the first circular ring part 2 and the second circular ring part 3 are clamped and approached to each other, the friction ring 7 in the first circular ring part 2 and the second circular ring part 3 is first caused to shrink in the annular cavity 6 until the top of the guide rod 8 contacts the limit plate 10 to complete the limit. At this time, multiple pressure springs 11 sense the thrust of the friction ring 7 to complete the compression, so the pressure spring 11 provides a reverse thrust for the friction ring 7, so that the friction ring 7 carries a certain thrust and contacts the cabinet part 1, and the suction of the annular electromagnet 4 and the annular permanent magnet 5 is superimposed. The clamping force is attached to promote the friction ring 7 to have a stable friction contact with the cabinet part 1, so that the No. 1 ring part 2 and the No. 2 ring part 3 obtain a stable friction effect, complete a good positioning work, and the installation and disassembly are convenient. Specifically, the position of the limit plate 10 is adjusted by the manual slide 9, so as to actively adjust the contraction distance of the friction ring 7, so that the pressure spring 11 obtains different pressures, and provides thrusts of different strengths to the friction ring 7, which is convenient for the staff to freely adjust according to the work requirements, and when the friction ring 7 contracts in the annular cavity 6, the friction ring 7 carries the gear 17 and the No. 1 piston 13 move synchronously. Since the gear 17 is meshed with the No. 1 rack 15 and the No. 2 rack 16, the piston rod 14 obtains a stroke lengthening effect. Specifically, when the gear 17 moves relative to the No. 2 rack 16, it meshes and rotates, which provides an additional upward movement to the No. 1 rack 15, so that the piston rod 14 and the No. 1 piston 13 move upward in the adsorption hole 12 to perform a piston action, so that an adsorption force is formed on the multiple adsorption holes 12, further improving the stability of the friction ring 7, and being able to provide multiple ways of simultaneous fixation, which provides assistance for subsequent hole opening work;

[0051] In the embodiment of the present invention, two manual slides 9 are installed on the upper surfaces of the No. 1 circular ring member 2 and the No. 2 circular ring member 3, and limit plates 10 are installed on the output ends of the two manual slides 9. The two limit plates 10 are used to complete the top limit of the two guide rods 8, and multiple pressure springs 11 are installed between the friction ring 7 and the annular cavity 6. The multiple pressure springs 11 push the front end of the friction ring 7 to extend out of the annular cavity 6. A plurality of adsorption holes 12 are opened in a circular shape on the friction ring 7. The bottoms of the multiple adsorption holes 12 are open and are arranged in coordination with the cabinet member 1. A No. 1 piston 13 is slidably and sealedly installed in each adsorption hole 12, and a piston rod 14 is concentrically and fixedly installed on the top of each No. 1 piston 13. The piston rod 14 slides through the friction ring 7 correspondingly, and each piston rod 14 is hidden on one side. There is a No. 1 rack 15, and the tops of the piston rods 14 on the two limiting assemblies slide through the No. 1 circular ring member 2 and the No. 2 circular ring member 3 respectively. A baffle for limiting is installed on the top of each piston rod 14. A plurality of No. 2 racks 16 are hidden and installed on the inner wall of the annular cavity 6. The plurality of No. 2 racks 16 are distributed in a circular shape in the annular cavity 6, and a gear 17 is rotatably installed on one side of the piston rod 14 on the friction ring 7 through a bracket. The gear 17 is meshed and connected with the No. 1 rack 15 and the No. 2 rack 16 respectively. A plurality of No. 1 holes connected to the adsorption hole 12 are evenly penetrated on the friction ring 7, and a plurality of No. 2 holes connected to the annular cavity 6 are penetrated on the No. 1 circular ring member 2 and the No. 2 circular ring member 3. The air pressure balance in the annular cavity 6 and the plurality of adsorption holes 12 is ensured through the No. 1 hole and the No. 2 hole.

[0052] Embodiment 3: Based on the protection mechanism provided in Embodiment 1, this embodiment provides a further technical solution of the protection mechanism.

[0053] like Figures 11 to 14 As shown, the hole-opening mechanism includes vertical rods 18 symmetrically installed on both sides of the upper surface of the No. 1 circular ring 2, the tops of the two vertical rods 18 are both installed with a No. 1 retaining ring 19, the exterior of the two vertical rods 18 is sleeved with a No. 2 retaining ring 20 located below the No. 1 retaining ring 19, and the No. 1 retaining ring 19 and the No. 2 retaining ring 20 are both detachably fixedly connected to the vertical rod 18, the exteriors of the two vertical rods 18 are both slidably sleeved with a sliding ring 21, and a hole-opening motor 22 is detachably fixedly installed between the two sliding rings 21, a drill chuck 23 is installed at the output end of the hole-opening motor 22, and a hole-opening drill bit 24 is detachably installed on the drill chuck 23, and an operating handle is installed on the two sliding rings 21, and the exteriors of the two vertical rods 18 are both sleeved with a damping spring 25, and the two damping springs 25 are respectively between the sliding ring 21 and the No. 2 retaining ring 20;

[0054] It is worth noting that: when drilling a hole: a drilling mechanism is provided, and then the drilling motor 22 is started to drive the drill chuck 23 and the drilling drill bit 24 to rotate, and then the operating handle is pushed, so that the two sliding rings 21 are guided by the two vertical rods 18 to move downward, so that the drilling drill bit 24 is close to the cabinet part 1 to complete the drilling work. When the drilling drill bit 24 moves downward, the damping spring 25 provides a damping force for the downward movement of the drilling motor 22, which is conducive to the continuous advancement of the staff and improves the stability of the drilling advancement. Subsequently, the damping spring 25 pushes the drilling drill bit 24 to separate from the cabinet part 1 to complete the drilling work;

[0055] In the embodiment of the present invention, the protective mechanism includes an annular air chamber 26 concentrically mounted on the first circular ring member 2, an annular ring 27 is mounted above the annular air chamber 26, an elastic cloth 28 is mounted between the annular ring 27 and the annular air chamber 26, a protective space is formed by the elastic cloth 28, the annular air chamber 26 and the annular ring 27, a plurality of telescopic members 29 are arranged in a circular array on the first circular ring member 2, the plurality of telescopic members 29 are connected to the annular ring 27, an extrusion chamber 30 is mounted on one side of the upper surface of the first circular ring member 2, and the top of the extrusion chamber 30 is The extrusion chamber 30 is designed to be open, and a No. 2 piston 31 is installed in a sliding and sealing manner in the extrusion chamber 30. A push arm 32 is installed on the top of the No. 2 piston 31, and the top of the push arm 32 is detachably fixedly connected to one of the sliding rings 21. An exhaust pipe 33 is installed on one side of the bottom of the extrusion chamber 30, and the exhaust pipe 33 is connected to the annular air chamber 26. An intake pipe 34 is installed on the other side of the bottom of the extrusion chamber 30. A one-way valve for introducing gas into the extrusion chamber 30 in one direction is installed at the end of the intake pipe 34, and a pressure relief valve is installed on one side of the bottom of the extrusion chamber 30;

[0056] It is worth mentioning that: when performing hole opening protection: by providing a protection mechanism, when the hole opening motor 22 moves downward, the linkage push arm 32 follows and moves downward, and moves in the extrusion chamber 30, so that the gas in the extrusion chamber 30 enters the annular air chamber 26 through the exhaust pipe 33, and is introduced into the multiple telescopic sleeves 291 through multiple interconnecting pipes 296, prompting the No. 3 piston 293 to overcome the return spring 295 in the telescopic sleeve 291 and follow the upward movement, and the telescopic rod 294 drives the annular ring 27 to move upward and stretch the elastic cloth 28 during the upward movement, and the stretching distance of the telescopic cloth follows the downward movement of the hole opening motor 22 to complete the follow-up cooperation, thereby achieving a dynamic protection effect, and a protection space is formed by the elastic cloth 28 and the annular ring 27, which can provide assistance to the work of the hole opening drill 24 and avoid waste chips from splashing. A blocking plate 36 is installed above the ring 27. When the annular ring 27 moves up to the limit position and contacts and collides with the blocking plate 36, the elastic cloth 28 can be cleaned, and the waste chips remaining on the elastic cloth 28 fall off, which reduces the difficulty of subsequent maintenance. By rotating the adjusting screw 38, the position of the blocking plate 36 can be actively fine-tuned, which is beneficial for the staff to adjust the stretching distance of the elastic cloth 28. The subsequent hole opening motor 22 moves up and resets, and the No. 2 piston 31 resets in the extrusion chamber 30, and the gas in the telescopic sleeve 291 is pumped back into the extrusion chamber 30 to wait for subsequent use, so that the protective mechanism and the hole opening mechanism can complete flexible follow-up, which can play a stable protective role and is beneficial to the safe and stable hole opening work. At the same time, the air intake pipe 34 and the pressure relief valve are used to balance the gas in the extrusion chamber 30;

[0057] In the embodiment of the present invention, each telescopic member 29 includes a telescopic sleeve 291, an end cover 292 is detachably mounted on the top of the telescopic sleeve 291, and a plurality of No. 3 holes are penetrated through the end cover 292 and communicated with the inside of the telescopic sleeve 291, a No. 3 piston 293 is slidably mounted in the telescopic sleeve 291, a telescopic rod 294 is concentrically mounted on the top of the No. 3 piston 293, the telescopic rod 294 slides through the end cover 292, and the top of the telescopic rod 294 is detachably fixedly connected to the annular ring 27, a return spring 295 is sleeved on the outside of the telescopic rod 294, the return spring 295 is correspondingly arranged between the end cover 292 and the No. 3 piston 293, and the return spring 295 is arranged between the end cover 292 and the No. 3 piston 293. An interconnecting pipe 296 is installed on one side of the bottom of the shrinkage sleeve 291, and the interconnecting pipe 296 is interconnected with the annular air chamber 26. A horizontal plate 35 is installed on one side of the two manual slides 9 of the No. 1 circular ring member 2, and a blocking plate 36 is installed above each horizontal plate 35. The blocking plate 36 extends to the top of the annular ring 27 accordingly. A limit rod 37 is slidably penetrated on one side of the horizontal plate 35, and the top of the limit rod 37 is fixedly connected to the lower surface of the blocking plate 36. An adjusting screw 38 is penetrated on one side of the horizontal plate 35 by threaded engagement, and the top of the adjusting screw 38 is rotatably connected to the lower surface of the blocking plate 36, and an operating head is installed at the bottom of the adjusting screw 38.

[0058] Embodiment 4: A method for drilling a hole for machining a low-voltage switch cabinet, the method comprising the following steps:

[0059] Step 1, firstly, the No. 1 circular ring part 2 and the No. 2 circular ring part 3 are correspondingly installed on the inner wall and the outer wall of the cabinet part 1, and the annular electromagnet 4 after power-on strongly adsorbs the annular permanent magnet 5, so that the No. 1 circular ring part 2 and the No. 2 circular ring part 3 are magnetically fixed;

[0060] Step 2: After that, the staff pushes the hole-opening mechanism downward to contact the cabinet part 1 to complete the hole-opening work;

[0061] Step 3: When the hole-opening mechanism is working, the synchronous linkage protection mechanism is deployed, thereby forming a protection space on the No. 1 circular ring 2 to avoid the problem of waste chips splashing during the hole-opening;

[0062] Step 4: Finally, disassemble the No. 1 circular ring part 2, the No. 2 circular ring part 3 and the cabinet part 1 to complete the hole opening process.

[0063] The present invention provides a hole-opening device and method for processing a low-voltage switch cabinet, and the specific working principle is as follows: first, a No. 1 circular ring part 2 and a No. 2 circular ring part 3 are correspondingly installed on the inner wall and the outer wall of the cabinet part 1, at which time the No. 1 circular ring part 2 and the No. 2 circular ring part 3 are parallelly distributed and correspond to the hole-opening position, and then the annular electromagnet 4 is energized, and the energized annular electromagnet 4 strongly adsorbs the annular permanent magnet 5, so that the No. 1 circular ring part 2 and the No. 2 circular ring part 3 are magnetically fixed, and at the same time, in the process of magnetic fixation, the limiting components on the No. 1 circular ring part 2 and the No. 2 circular ring part 3 are linked to act, so that the friction ring 7 carries a certain pressure and contacts with the cabinet part 1 by friction, further improving the stability of positioning, and multiple adsorption holes 12 are also linked, and a certain adsorption force is provided at the positions of multiple adsorption holes 12, so that the No. 1 circular ring part 2 and the No. 2 circular ring part 3 can be stably limited on the cabinet part 1 in a variety of ways, and the overall positioning, installation and disassembly are convenient, saving time and labor, and are not limited by the size of the cabinet part 1, providing assistance for the staff's hole-opening work;

[0064] Afterwards, the staff pushes the hole-opening mechanism downward to contact the cabinet part 1 to complete the hole-opening work. During the operation of the hole-opening mechanism, the synchronous linkage protection mechanism is deployed, thereby forming a protective space on the No. 1 ring part 2 to avoid the problem of waste chips splashing during the hole-opening, thereby ensuring the safety of the staff, improving the safety of the hole-opening work, and improving the efficiency of the hole-opening work. There is no need for the staff to repeatedly disassemble and assemble, saving time and effort.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0066] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A hole-punching device for processing a low-voltage switch cabinet, comprising a cabinet member (1), characterized in that: A positioning mechanism is installed on the cabinet member (1), the positioning mechanism comprising a first circular ring member (2) and a second circular ring member (3); an annular electromagnet (4) is hidden and installed on the side of the first circular ring member (2) facing the cabinet member (1); and an annular permanent magnet (5) is hidden and installed on the side of the second circular ring member (3) facing the cabinet member (1); A limit assembly is installed on both the No. 1 circular ring member (2) and the No. 2 circular ring member (3), and the limit assembly is used to complete the stable limit work of the No. 1 circular ring member (2), the No. 2 circular ring member (3) and the cabinet member (1). A hole opening mechanism is added to the No. 1 circular ring member (2), and the positioning action of the hole opening mechanism and the cabinet member (1) is completed through the positioning mechanism. A protection mechanism is added to the No. 1 circular ring member (2), and the protection mechanism is linked with the hole opening mechanism. The protection work is completed by the action of the hole opening mechanism linking the protection mechanism to extend. The two limit assemblies each comprise an annular cavity (6) formed on a first annular member (2) and a second annular member (3), a friction ring (7) being slidably mounted in the annular cavity (6), and two guide rods (8) being symmetrically mounted on the top of the friction ring (7); Two manual slides (9) are installed on the upper surfaces of the first circular ring member (2) and the second circular ring member (3), and limit plates (10) are installed on the output ends of the two manual slides (9), and a plurality of pressure springs (11) are installed between the friction ring (7) and the annular cavity (6); A plurality of adsorption holes (12) are provided in a circular shape on the friction ring (7), a first piston (13) is slidably sealed in each adsorption hole (12), a piston rod (14) is coaxially fixedly installed on the top of each first piston (13), a first rack (15) is concealedly installed on one side of each piston rod (14), a plurality of second racks (16) are concealedly installed on the inner wall of the annular cavity (6), and a gear (17) is rotatably installed on one side of the piston rod (14) on the friction ring (7), and the gear (17) is meshedly connected with the first rack (15) and the second rack (16) respectively; The hole-opening mechanism comprises vertical rods (18) symmetrically mounted on both sides of the upper surface of a first circular ring (2), a first retaining ring (19) being mounted on the top of the two vertical rods (18), a second retaining ring (20) being sleeved on the outside of the two vertical rods (18) and located below the first retaining ring (19), a sliding ring (21) being slidably sleeved on the outside of the two vertical rods (18), a hole-opening motor (22) being mounted between the two sliding rings (21), a drill chuck (23) being mounted on the output end of the hole-opening motor (22), and a hole-opening drill bit (24) being detachably mounted on the drill chuck (23); The protective mechanism comprises an annular air chamber (26) mounted concentrically on a first circular ring member (2), an annular ring (27) mounted above the annular air chamber (26), an elastic cloth (28) mounted between the annular ring (27) and the annular air chamber (26), a plurality of telescopic members (29) arranged in a circular array on the first circular ring member (2), the plurality of telescopic members (29) being connected to the annular ring (27), an extrusion chamber (30) mounted on one side of the upper surface of the first circular ring member (2), a second piston (31) being mounted in a sliding and sealing manner in the extrusion chamber (30), a push arm (32) being mounted on the top of the second piston (31), and the top of the push arm (32) being detachably fixedly connected to one of the sliding rings (21), an exhaust pipe (33) being mounted on one side of the bottom of the extrusion chamber (30), the exhaust pipe (33) being connected to the inside of the annular air chamber (26), and an air intake pipe (34) being mounted on the other side of the bottom of the extrusion chamber (30); Each telescopic member (29) comprises a telescopic sleeve (291), an end cover (292) is detachably mounted on the top of the telescopic sleeve (291), a No. 3 piston (293) is slidably mounted in the telescopic sleeve (291), a telescopic rod (294) is concentrically mounted on the top of the No. 3 piston (293), and the top of the telescopic rod (294) is detachably fixedly connected to the annular ring (27), a return spring (295) is sleeved on the outside of the telescopic rod (294), the return spring (295) is correspondingly arranged between the end cover (292) and the No. 3 piston (293), and an intercommunication pipe (296) is installed on one side of the bottom of the telescopic sleeve (291), and the intercommunication pipe (296) is intercommunication with the annular air chamber (26).

2. A hole-punching device for processing a low-voltage switch cabinet according to claim 1, characterized in that: The two vertical rods (18) are both sleeved with damping springs (25) on their exteriors, and the two damping springs (25) are respectively located between the sliding ring (21) and the second retaining ring (20).

3. A hole-punching device for processing a low-voltage switch cabinet according to claim 2, characterized in that: A transverse plate (35) is installed on one side of the two manual slides (9) of the No. 1 circular ring member (2), and a blocking plate (36) is installed above each transverse plate (35). The blocking plate (36) extends to the top of the annular ring (27). A limit rod (37) is slidably penetrated on one side of the transverse plate (35), and the top of the limit rod (37) is fixedly connected to the lower surface of the blocking plate (36). An adjusting screw (38) is penetrated on one side of the transverse plate (35) through a threaded engagement, and the top of the adjusting screw (38) is rotatably connected to the lower surface of the blocking plate (36).

4. A method for drilling a hole for processing a low-voltage switch cabinet, using a drilling device for processing a low-voltage switch cabinet as claimed in any one of claims 1 to 3, characterized in that: The hole-opening method specifically comprises the following steps: Step 1: First, the first circular ring member (2) and the second circular ring member (3) are fitted on the inner wall and the outer wall of the cabinet member (1) respectively, and the annular electromagnet (4) after power is turned on strongly adsorbs the annular permanent magnet (5), so that the first circular ring member (2) and the second circular ring member (3) are magnetically fixed; Step 2: After that, the staff pushes the hole-opening mechanism downward to contact the cabinet part (1) to complete the hole-opening work; Step 3, when the hole-opening mechanism is working, the synchronous linkage protection mechanism is deployed, thereby forming a protection space on the first ring member (2) to avoid the problem of waste chips splashing when the hole is opened; Step 4: Finally, the No. 1 circular ring member (2), the No. 2 circular ring member (3) and the cabinet member (1) are disassembled to complete the hole opening process.

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