A hole opening auxiliary positioning device

Abstract

The application provides a hole auxiliary positioning device which can improve the accuracy of hole drilling. The hole auxiliary positioning device comprises a crossbeam assembly, a cantilever support assembly and a rotating shaft assembly, the crossbeam assembly is connected with the cantilever support assembly, the cantilever support assembly is connected with the rotating shaft assembly, the transverse length of the crossbeam assembly is adjustable, the longitudinal length of the cantilever support assembly is adjustable, the height of the rotating shaft assembly is adjustable, and the transverse direction, the longitudinal direction and the height direction are perpendicular to each other.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic precipitator technology, specifically to an opening auxiliary positioning device. Background Technology

[0002] Opening holes in equipment is a common requirement. For example, some electrostatic precipitators have an isolation rapping system installed at the rear end of the flue gas channel between the anode plates in the final electric field. This means that holes need to be drilled on the top and bottom surfaces of the top beam of the anode plate system to correspond to the positions of each lifting mechanism. A pair of coaxial, equal-diameter circular holes need to be machined to install the liner, provide working space for the lifting mechanism of the isolation rapping system, and improve the structural strength of the top beam.

[0003] In the relevant technical solutions, the operator drills a top hole on the top of the drilling equipment, then squats down at the bottom of the equipment to roughly position the bottom hole. The position of the top hole is then used to verify the bottom hole's location before drilling. It is evident that this method of positioning by the operator has low accuracy. Utility Model Content

[0004] This application provides an auxiliary positioning device for opening holes, which can improve the dimensional accuracy of opening holes.

[0005] To achieve the above objectives, this application provides a hole-opening auxiliary positioning device, including a crossbeam assembly, a cantilever bracket assembly, and a rotating shaft assembly. The crossbeam assembly is connected to the cantilever bracket assembly; the cantilever bracket assembly is connected to the rotating shaft assembly, and the rotating shaft assembly is used to directly or indirectly install the hole-opening fixture; the lateral length of the crossbeam assembly is adjustable, the longitudinal length of the cantilever bracket assembly is adjustable, and the height of the rotating shaft assembly is adjustable, wherein the lateral, longitudinal, and height directions are perpendicular to each other.

[0006] Optionally, the crossbeam assembly includes a crossbeam unit, the crossbeam unit including an inner crossbeam one, an inner crossbeam two, and a crossbeam connecting sleeve, the crossbeam connecting sleeve being sleeved on the inner crossbeam one and the inner crossbeam two, the inner crossbeam one and the inner crossbeam two being able to slide laterally along the crossbeam connecting sleeve to adjust the lateral length of the crossbeam assembly.

[0007] Optionally, the first inner crossbeam and the second inner crossbeam have the same structure and are arranged symmetrically at the center; each of the two inner crossbeams has a protrusion and a recess at one end, and when the first inner crossbeam and the second inner crossbeam are retracted laterally into the crossbeam, the protrusion of the first inner crossbeam can be inserted into the recess of the second inner crossbeam, and the protrusion of the second inner crossbeam can be inserted into the recess of the first inner crossbeam.

[0008] Optionally, the first inner crossbeam and the second inner crossbeam are provided with elongated grooved rails extending laterally, and the crossbeam sleeve has a limiting pin; or, the crossbeam sleeve is provided with elongated grooved rails extending laterally, and the first inner crossbeam and the second inner crossbeam are provided with limiting pins.

[0009] The limiting pin is inserted into the long strip groove to connect the cross frame sleeve with the inner cross frame one and the inner cross frame two.

[0010] Optionally, the crossbeam unit further includes a gear shaft, a gear, and a rack. The gear is disposed at one end of the gear shaft, and both the inner crossbeam one and the inner crossbeam two are provided with the rack, which cooperates with the gear.

[0011] Optionally, the beam assembly includes two beam units, and the beam assembly further includes connecting plates. The connecting plates are distributed at both ends of the beam unit in the transverse direction, and the two sets of beam units are connected by the connecting plates.

[0012] Optionally, the crossbeam assembly further includes a handle, with the other end of the gear shaft of one of the crossbeam units extending out of the corresponding crossbeam sleeve, and the other end being the drive end, the handle being connected to the drive end.

[0013] Optionally, the beam assembly further includes at least one pair of positioning plates for support within the gap between two adjacent pairs of lugs of the top beam of the anode plate system.

[0014] Optionally, the beam assembly further includes a limiting plate having a slot for engaging with the hanging steel of the anode plate system.

[0015] Optionally, the cantilever bracket assembly includes a fixed suspension, a telescopic suspension, and a bearing sleeve. The telescopic suspension is embedded in the fixed suspension and can extend and retract longitudinally relative to the fixed suspension to adjust its longitudinal length. The fixed suspension is connected to the crossbeam assembly. The bearing sleeve is connected to the pivot assembly and is embedded in the telescopic suspension along the height direction.

[0016] Optionally, one of the fixed suspension and the telescopic suspension is provided with a groove extending along the longitudinal direction, and the other is provided with a sliding pin, the sliding pin being inserted into the groove;

[0017] The fixed suspension is provided with a positioning bolt, which is threadedly connected to the fixed suspension. The positioning bolt can abut against the telescopic suspension to position the telescopic suspension and the fixed suspension.

[0018] Optionally, the pivot assembly includes a pivot, a threaded shaft, and a pivot connecting plate. The pivot is connected to the pivot connecting plate and to the cantilever bracket assembly. The threaded shaft is connected to the pivot connecting plate to adjust the height of the pivot assembly.

[0019] Optionally, the rotating shaft connecting plate is provided with a strip-shaped hole extending along the longitudinal direction, and the threaded shaft passes through the strip-shaped hole.

[0020] Optionally, it also includes a cutting torch holder assembly for fixing a plasma cutting torch, the plasma cutting torch being the hole-opening fixture; the cutting torch holder assembly is connected to the rotating shaft assembly.

[0021] The hole-opening auxiliary positioning device in this application, by setting up a crossbeam assembly, a cantilever bracket assembly, and a rotating shaft assembly, can realize the adjustment in the horizontal, vertical, and height directions, so that the hole-opening fixture installed on the rotating shaft assembly can be adjusted to the required position. That is, the hole-opening auxiliary positioning device can realize the adjustment of the hole-opening fixture in three directions: horizontal, vertical, and height, which can effectively reduce the difficulty of operation and improve the positional accuracy of the hole. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of an opening auxiliary positioning device in an embodiment of this application;

[0023] Figure 2 for Figure 1 Front view of the center-opening auxiliary positioning device;

[0024] Figure 3 for Figure 2 The left view;

[0025] Figure 4 for Figure 2 Top view;

[0026] Figure 5 for Figure 1 A schematic diagram of the structure of the center-opening auxiliary positioning device applied to the top beam opening scenario of the anode plate;

[0027] Figure 6 for Figure 5 Left view of the central top beam and anode plate;

[0028] Figure 7 for Figure 1 A structural schematic diagram of a beam element;

[0029] Figure 8 for Figure 7 Top view of the assembled inner crossbeam;

[0030] Figure 9 for Figure 7Top view of the middle crossbeam element;

[0031] Figure 10 This is a structural schematic diagram of a beam unit;

[0032] Figure 11 for Figure 1 Schematic diagram of the cantilever support assembly;

[0033] Figure 12 for Figure 1 Schematic diagram of the central axis assembly;

[0034] Figure 13 This is a schematic diagram of the cutter holder assembly.

[0035] The annotations in the attached figures are explained as follows:

[0036] A-Top beam; B-Hanging lug; C-Anode plate; D-Suspended steel; E-Plasma cutting torch; F-Suspended plate; 1-Opening auxiliary positioning device;

[0037] 11-Crossbeam assembly; 111, 112-Crossbeam unit; 1111-Inner crossbeam one; 1112-Inner crossbeam two; 1111a, 1112a-Long strip-shaped channel rail; 1113-Crossbeam coupling; 1113a-Limit pin one; 1113b-Limit pin two; 1113c-Cap; 1114-Gear shaft; 1114a-Large diameter section; 1114b-Drive section; 1115 Gear; 1116 Rack; 1116a-Rack one; 1116b-Rack two; 113-Connecting plate; 114-Handle; 115-Positioning plate; 116-Limiting plate; 116a-Slot;

[0038] 12-Cantilever bracket assembly; 121-Fixed suspension; 121a-Sliding pin; 1211-Positioning bolt; 122-Telescopic suspension; 122a-Slide groove; 123-Bearing sleeve; 123a-Bearing;

[0039] 13-Shaft assembly; 131-Shaft; 131a-Small diameter section; 131b-Large diameter section; 132-Threaded shaft; 132a-Locking nut; 133-Shaft connecting plate; 133a-Strip hole;

[0040] 14-Cutter gun holder assembly; 141-Rectangular frame; 142-Bearing sleeve; 142a-Bearing; 143-Holder. Detailed Implementation

[0041] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] like Figures 1 to 4 As shown, Figure 1This is a schematic diagram of the structure of an opening-assisted positioning device in an embodiment of this application; Figure 2 for Figure 1 Front view of the center-opening auxiliary positioning device; Figure 3 for Figure 2 The left view; Figure 4 for Figure 2 Top view.

[0043] The hole-opening auxiliary positioning device in this embodiment is used to assist the hole-opening fixture in making holes, such as a plasma cutting torch E.

[0044] The hole-opening auxiliary positioning device includes a crossbeam assembly 11, a cantilever support assembly 12, a rotating shaft assembly 13, and a cutting torch holder assembly 14. The crossbeam assembly 11 is connected to the cantilever support assembly 12, the cantilever support assembly 12 is connected to the rotating shaft assembly 13, and then the cutting torch holder assembly 14 is connected to the rotating shaft assembly 13. The connected structure is as follows: Figure 1 As shown. The transverse length of the crossbeam assembly 11 is adjustable, the longitudinal length of the cantilever support assembly 12 is adjustable, and the height of the pivot assembly 13 is adjustable. Furthermore, the transverse, longitudinal, and height directions are perpendicular to each other. The transverse, longitudinal, and height directions can be referenced... Figure 1 As shown.

[0045] When drilling holes in components, operators must simultaneously control the drilling fixture and position the hole, which is inconvenient and lacks precision. However, the drilling auxiliary positioning device in this embodiment can adjust the length of the drilling fixture in the horizontal, vertical, and height directions. It is applicable to projects with different pole pitches and beam widths, effectively reducing the difficulty of operation and improving the positional accuracy of the hole.

[0046] For example, such as Figure 5 and Figure 6 As shown, Figure 5 for Figure 1 A schematic diagram of the structure of the center-opening auxiliary positioning device applied to the anode plate C in the same pole distance L arrangement, with an opening in the top beam A of a certain beam width; Figure 6 for Figure 5 Left view of the top beam A and the anode plate C.

[0047] The component to be drilled can be the top beam A of the anode plate C. In actual operation, the top of the anode plate C is located at a high altitude and the space is narrow, making operation inconvenient and the bottom of the top beam A has low visibility, which makes it difficult to locate the hole and the hole size accuracy is low. The hole positioning device in this embodiment can reduce the difficulty of positioning the bottom hole of the top beam A and improve the size accuracy.

[0048] Please refer to Figure 7 and Figure 8 , Figure 7 for Figure 1A structural schematic diagram of a beam element; Figure 8 for Figure 7 Top view of the inner crossbeam 1111 after assembly.

[0049] In some embodiments, the beam assembly 11 may include beam units. Figure 7 The schematic crossbeam unit can be defined as crossbeam unit one 111. Crossbeam unit one 111 includes inner crossbeam one 1111, inner crossbeam two 1112 and crossbeam connecting sleeve 1113. Inner crossbeam one 1111 and inner crossbeam two 1112 have the same structure and are arranged in a centrally symmetrical manner. Crossbeam connecting sleeve 1113 is sleeved on the outside of inner crossbeam one 1111 and inner crossbeam two 1112. The three can be fitted with a clearance fit. Inner crossbeam one 1111 and inner crossbeam two 1112 can slide and extend relative to crossbeam connecting sleeve 1113. When inner crossbeam one 1111 and inner crossbeam two 1112 are far apart, crossbeam unit one 111 extends. When they are close to each other, crossbeam unit one 111 shortens, thereby realizing the lateral length adjustment of crossbeam assembly 11.

[0050] This embodiment does not limit the shape and processing requirements of the inner crossbeam 1111 and the inner crossbeam 2 1112. For example, in this embodiment, the inner crossbeam 1111 and the inner crossbeam 2 1112 can be manufactured using square tubing through machining. Each of the inner crossbeam 1111 and the inner crossbeam 2 1112 has a protrusion and a recess at one end opposite to each other. Since the inner crossbeam 1111 and the inner crossbeam 2 1112 have the same structure, when the inner crossbeam 1111 and the inner crossbeam 2 1112 are laterally retracted into the crossbeam sleeve 1113, the protrusion of the inner crossbeam 1111 can be inserted into the recess of the inner crossbeam 2 1112, and the protrusion of the inner crossbeam 2 1112 can be inserted into the recess of the inner crossbeam 1111. This embodiment does not limit the shape of the protrusions and recesses of the inner crossbeam 1111 and the inner crossbeam 2 1112. For example, as shown in the figure... Figure 8 As shown, in this embodiment, the inner crossbar 1111 and the inner crossbar 2 1112 have Z-shaped specific slots and are complementary. The concave-convex fit design can increase the extension stroke and improve the flexibility of lateral length adjustment.

[0051] The crossbeam unit 111 can be equipped with a limiting pin and a grooved rail to position the inner crossbeam 1111 and inner crossbeam 2 1112, ensuring better maintenance of the adjusted state. The limiting pin and grooved rail can connect the crossbeam sleeve 1113 to the inner crossbeam 1111 and inner crossbeam 2 1112. For example... Figure 7As shown, the inner cross frame 1111 is provided with a transversely extending elongated groove rail 1111a, and the inner cross frame 2 1112 is provided with a transversely extending elongated groove rail 2 1112a. The cross frame sleeve 1113 is provided with a limiting pin 1113a and a limiting pin 1113b; alternatively, the cross frame sleeve 1113 may be provided with a transversely extending elongated groove rail, and the inner cross frame 1111 and the inner cross frame 2 1112 may be provided with limiting pins. This embodiment does not impose any limitations. Exemplarily, in this embodiment, the cross frame sleeve 1113 is provided with a limiting pin 1113a and a limiting pin 1113b that can pass through one side surface. Figure 7 The middle limiting pin is located on the upper side of the cross frame sleeve 1113. The limiting pin can pass through the elongated groove rails 1111a and 1112a corresponding to the inner cross frame 1111 and inner cross frame 2 1112. The positions of the limiting pin 1113a, the limiting pin 2 1113b and the elongated groove rails 1111a and 1112a can be referenced. Figure 7 As shown.

[0052] like Figure 9 As shown, Figure 9 for Figure 7 Top view of the middle crossbeam unit 111.

[0053] The side length of the limiting pin is h, the length of the long strip groove is g, and the distance from the protrusion of the inner cross frame 1111 to the recess of the inner cross frame 2112 is L4, and L4=gh, to ensure that the inner cross frame 1111 and the inner cross frame 2112 do not interfere with each other.

[0054] The crossbeam unit 111 may further include a gear shaft 1114, a gear 1115, and a rack 1116. In this embodiment, the inner crossbeam 1111 and the inner crossbeam 2 1112 have Z-shaped specific slots and are complementary. The rack 1116a is welded to the protrusion of the inner crossbeam 1111. The rack 1116a can be located on the inner side of the inner crossbeam 1111 and is flush with the end face of the inner crossbeam 1111 facing the inner crossbeam 2 1112. The rack 2 1116b is welded to the protrusion of the inner crossbeam 2 1112, i.e., the inner side of the inner crossbeam 2 1112, and is flush with the end face of the inner crossbeam 2 1112 facing the inner crossbeam 1111. Figure 7 As shown.

[0055] In this embodiment, the gear shaft 1114 may have a large-diameter section 1114a and a driving section 1114b. The end of the driving section 1114b is the driving end. The lower shoulder of the large-diameter section 1114a is attached to the inner bottom surface of the cross-frame sleeve 1113, so that the axis of the gear shaft 1114 coincides with the central axis of symmetry of the inner cross-frame 1111 and the inner cross-frame 2112. The gear 1115 is sleeved onto the driving section 1114b and can be supported on the upper shoulder of the large-diameter section 1114a. The height of the upper shoulder can be set to be flush with the lower end face of the rack 1116a and the rack 2116b. In this embodiment, the number of teeth of the gear 1115 is the same as the module of the rack 1116a and the rack 2116b, and the three can form a two-way gear rack meshing relationship. The inner crossbeam 1111, inner crossbeam 2 1112, gear 1115, rack 1116a, rack 2 1116b, and gear shaft 1114 are combined as described above. The distance between inner crossbeam 1111 and inner crossbeam 2 1112 is f, the length of the rack is L5, and the radius of the drive section 1114b of gear shaft 1114 is r, which satisfies L4 + 2r < L5. Figure 8 As shown, when the value of L4 is 0, the gear shaft 1114 does not interfere with the inner crossbeam 1111 and the inner crossbeam 2 1112.

[0056] In this embodiment, a cover 1113c may also be provided on the cross-frame sleeve 1113. The shape of the cover 1113c is not limited in this embodiment. The cover 1113c is used to seal the pre-reserved installation and maintenance port for the gear 1115 on the cross-frame sleeve 1113. A sleeve that restricts the axial movement of the drive section 1114b of the gear shaft 1114 may be provided on the cover 1113c. The cover 1113c is then fixed to the cross-frame sleeve 1113 using fasteners such as fixing screws. Figure 7 As shown. The addendum circle radius of gear 1115 is R, which satisfies 2R < f to ensure the installation and maintenance of gear 1115, as follows. Figure 7 As shown.

[0057] It should be noted that the opening-assisted positioning device in this embodiment may include two crossbeam units, namely crossbeam unit one 111 and crossbeam unit two 112, wherein crossbeam unit one 111 is the active crossbeam unit and crossbeam unit two 112 is the driven crossbeam unit, and crossbeam unit one 111 and crossbeam unit two 112 have the same structural composition. As mentioned above, the gear shaft 1114 in crossbeam unit one 111 has a driving section 1114b, and the driving section 1114b of crossbeam unit one 111 can pass through the crossbeam connecting sleeve 1113 and has a certain length, such as Figure 7 As shown.

[0058] Let's look again. Figure 10 , Figure 10 This is a structural schematic diagram of beam unit 212.

[0059] The drive section 1114b of the second crossbeam unit 112 does not extend out of the crossbeam sleeve 1113, and the length of the entire gear shaft 1114 can be the same as the distance between the upper and lower planes of the first inner crossbeam 1111 and the second inner crossbeam 1112.

[0060] As described above, when installing the crossbeam unit 111, the limiting pins 1113a and 1113b on the crossbeam sleeve 1113 are respectively centered within the elongated groove 1111a of the inner crossbeam 1111 and the elongated groove 1112a of the inner crossbeam 2 1112. This allows for smooth adjustment of the transverse length L6 of the crossbeam unit 111, with an adjustment range of ±L4. Figure 7 As shown.

[0061] The crossbeam assembly 11 may also include a connecting plate 113 and a handle 114. Connecting plates 113 are distributed at both ends of the two crossbeam units along the transverse direction, and the two sets of crossbeam units are connected by the connecting plates 113. The handle 114 is connected to the drive end of the drive section 1114b of the gear shaft 1114 of the first crossbeam unit 111. Rotating the handle 114 controls the extension and retraction of the first crossbeam unit 111. The second crossbeam unit 112, as the driven component, can be arranged parallel to the first crossbeam unit 111, as the driving component. When the first crossbeam unit 111 extends or retracts, the driven second crossbeam unit 112 will extend or retract via the connecting plates 113.

[0062] The spacing between the two sets of crossbeam units, for example, is set to be 250mm or more, to ensure the operator's working space, achieve master-slave cooperation, and form a stable main body of the device with other components. This embodiment does not limit the material and structure of the connecting plate 113. For example, in this embodiment, the connecting plate 113 is made of steel plate with consistent external dimensions, such as... Figure 1 As shown. In this embodiment, an external hexagonal shaft section and a threaded locking section can be provided at the end of the drive section 1114b of the gear shaft 1114. The center of the handle 114 is set as an internal hexagonal hole. After inserting the handle 114 into the end of the gear shaft 1114, it is locked with a nut. The gear shaft 1114 is driven by the handle 114, as shown. Figure 7 As shown. After the handle 114 drives the gear shaft 1114 to rotate, the gear shaft 1114 drives the gear 1115 to move relative to the racks 1116a and 1116b on the inner crossbeam 1111 and the inner crossbeam 2112, so that the inner crossbeam 1111 and the inner crossbeam 2112 slide in the lateral direction to adjust the lateral length of the crossbeam unit 111. The crossbeam unit 111 drives the driven crossbeam unit 212 to change its lateral length through the connecting plate 113, so as to achieve the purpose of adjusting the lateral length of the entire crossbeam assembly 11.

[0063] The crossbeam assembly 11 may also include at least one pair of positioning plates 115 and limiting plates 116. In this embodiment, the materials of the positioning plates 115 and limiting plates 116 are not limited. For example, in this embodiment, both the positioning plates 115 and limiting plates 116 are made of steel plates. Figure 5 As shown, the bottom side of the top beam A has several pairs of equally spaced hanging ears B, which are used to suspend the anode plate C. To install the opening auxiliary positioning device in this embodiment, ensuring it is on top of the anode plate C and remains horizontal, the positioning plate 115 in this embodiment is L-shaped and symmetrically welded to the connecting plate 113 on the same horizontal plane. Figure 1 As shown.

[0064] like Figure 6 As shown, the center distance L between two adjacent pairs of lugs B is the theoretical pole spacing, which is typically between 350mm and 450mm. The gap between the two lugs B in a pair is L1, and the axial dimension of the hanging tube at the top of the anode plate C is a. Generally, L1-a=4mm, meaning the positioning error of a single anode plate C is ±2mm. The width (dimension along the transverse direction) of the longitudinally extending section of the positioning plate 115 is d, and d=a, allowing the positioning plate 115 to be embedded within the gap between a pair of lugs B of the top beam A, as shown. Figure 5 As shown, the center dimension L2 of the two positioning plates 115 is equal to the same pole distance L, and the single-sided positioning error is defined as ±2mm as the positioning error of the anode plate C. This allows the positioning in this embodiment to achieve the same pole distance overlap with the adjacent anode plate C in the lateral direction, and also provides support.

[0065] The limiting plate 116 is welded to the connecting plate 113 and can be parallel to the positioning plate 115. The distance between the limiting plate 116 and the positioning plate 115 in the height direction is L3. The vertical height of the hanging plate F on the anode plate C is b, and L3 ≥ b + 2 mm, which ensures that the limiting plate 116 is embedded in the gap between the anode plate C and the hanging plate F. Figure 5 As shown. The limiting plate 116 has a slot 116a on the structural basis of the positioning plate 115. Since the limiting plate 116 is used to clamp the hanging steel D of the anode plate system and plays a supporting and positioning role, the slot 116a is designed as a square slot in this embodiment, as shown. Figure 1 As shown, the side length of the slot 116a is e, and the side length of the hanging steel D is c. The slot 116a is 0.5mm~1mm longer than the side length of the hanging steel D of the anode plate, i.e., e=c+(0.5mm~1mm). After the device is pushed in longitudinally, the slot 116a can hold the hanging steel D of the anode plate system, thereby further limiting the opening auxiliary positioning device.

[0066] In this embodiment, the axis of the gear shaft 1114 of the crossbeam assembly 11 coincides with the centerline of the crossbeam sleeve 1113 along the height direction. In this embodiment, the position of the axis of the gear shaft 1114 or the centerline of the crossbeam sleeve 1113 remains unchanged during the lateral dimension adjustment, thus allowing for relatively stable adjustment. The distance from the axis of the gear shaft 1114 or the centerline of the crossbeam sleeve 1113 to the center of the positioning plate 115 is L7, i.e., L7 = L2 / 2. Figures 2 to 4 As shown, the center plane of the beam assembly 11 and the center plane of the anode plate system with the same pole distance are overlapped, and the overlapping position can be maintained during adjustment. The center plane with the same pole distance is located in the middle of two adjacent anode plates C and is parallel to the anode plate C. In addition, the length of the entire beam assembly 11 can be adjusted by adjusting the length of the beam unit 111 using the handle 114, and the center dimension L2 of the positioning plate 115 can be adjusted to adapt to various applications with the same pole distance.

[0067] like Figure 11 As shown, Figure 11 for Figure 1 A schematic diagram of the structure of the cantilever support assembly 12.

[0068] The cantilever bracket assembly 12 includes a fixed suspension 121 and a telescopic suspension 122. The fixed suspension 121 can be welded to the center side of the driven crossbeam unit 112 of the crossbeam assembly 11. The telescopic suspension 122 is embedded and fixed within the fixed suspension 121 with a clearance fit, ensuring that the axis y'-y' of the fixed suspension 121 and the telescopic suspension 122 are parallel to the longitudinal direction. Figure 1 As shown, the cantilever bracket assembly 12 can also have the positioning characteristic of being centered on the plane with the same pole distance as the anode. One of the fixed suspension 121 and the telescopic suspension 122 is provided with a longitudinally extending groove 122a, and the other is provided with a sliding pin 121a. Inserting the sliding groove 122a into the fixed suspension 122a allows the telescopic suspension 122 to slide relative to the fixed suspension 121. Exemplarily, in this embodiment, the fixed suspension 121 is provided with a sliding pin 121a, and the telescopic suspension 122 is provided with a longitudinally extending groove 122a, such as... Figure 11 As shown. After the telescopic suspension 122 is embedded in the fixed suspension 121, the longitudinal distance between the telescopic suspension 122 and the fixed suspension 121 is adjusted by the sliding pin 121a, so as to achieve the purpose of adjusting the longitudinal length of the cantilever bracket assembly 12. The length of the sliding groove 122a of the telescopic suspension 122 is set as k, which is the adjustable range of the longitudinal length of the cantilever bracket assembly 12. Its value can be designed as needed to realize the positioning of different drilling positions required when the device is adapted to various top beam width specifications.

[0069] The fixed suspension 121 may also be provided with a positioning bolt 1211, which can be threaded to the fixed suspension 121 and can pass through the fixed suspension 121. The positioning bolt 1211 can abut against the telescopic suspension 122 to position the telescopic suspension 122 and the fixed suspension 121. Specifically, after adjusting the longitudinal distance between the telescopic suspension 122 and the fixed suspension 121 using the sliding pin 121a, the positioning bolt 1211 is rotated to press against the telescopic suspension 122, thereby locking the telescopic suspension 122 in the position of the fixed suspension 121 to achieve the required longitudinal length.

[0070] The cantilever bracket assembly 12 may further include a bearing sleeve 123, one end of the telescopic suspension 122 and a fixed suspension 121 insert sleeve, and the other end of the telescopic suspension 122 is provided with the bearing sleeve 123, which can be embedded in the telescopic suspension 122 along the height direction, such as... Figure 11 As shown. A corresponding bearing 123a is embedded inside the bearing sleeve 123. For example, the bearing sleeve 123 and bearing 123a are fitted with an interference fit. The mating surfaces of the bearing sleeve 123 and bearing 123a can be machined to form an internal step. The height of the internal step can be equal to the axial height of the bearing 123a. After the bearing 123a is installed inside the bearing sleeve 123, it is supported on the internal step, preventing displacement of the bearing 123a. The axial direction of the bearing sleeve 123 is perpendicular to the longitudinal direction of the telescopic suspension 122, and the axis of the bearing sleeve 123 passes through the center of the required opening, or in other words, the projections of the axis and the center of the opening in the horizontal plane coincide. In this way, the bearing sleeve 123 shaft has the function of automatically centering in the same polarity center plane and positioning at a certain distance from the side of the anode plate C. The shaft of the bearing sleeve 123 is coaxial with the center of the hole to be opened. The distance from the shaft of the bearing sleeve 123 to the center side of the driven crossbeam unit 112 of the crossbeam assembly 11 is L10, and L10 is the required longitudinal length.

[0071] Please refer to Figure 12 , Figure 12 for Figure 1 A schematic diagram of the structure of the central shaft assembly 13.

[0072] The rotating shaft assembly 13 includes a rotating shaft 131, a threaded shaft 132, and a rotating shaft connecting plate 133. The rotating shaft 131 includes a small-diameter section 131a and a large-diameter section 131b. This embodiment does not limit the machining process of the rotating shaft 131. Exemplarily, in this embodiment, the small-diameter section 131a is precision-machined and embedded in the bearing sleeve 123 of the cantilever bracket assembly 12, and an interference fit can be used with the bearing 123a. The large-diameter section 131b is embedded in the rotating shaft connecting plate 133 and welded securely. Furthermore, the axis of the rotating shaft 131 coincides with the axis of the bearing sleeve 123 of the cantilever bracket assembly 12, and the axis of the rotating shaft 131 corresponds to the center of the hole to be drilled.

[0073] The rotating shaft connecting plate 133 may be provided with a longitudinally extending strip hole 133a. The threaded shaft 132 is inserted into the strip hole 133a, and the longitudinal adjustment can be achieved within the length range of the strip hole 133a, so the required opening diameter can be adjusted. The center length of the strip hole 133a is L8, so the adjustment range of the hole radius is L8. The horizontal distance between the threaded shaft 132 and the center of the rotating shaft is L9, and L9 is the required opening radius, i.e., L9=φ / 2. Since the threaded shaft 132 has a long thread, the height of the rotating shaft assembly 13 can be changed by adjusting the threaded shaft 132, and the threaded shaft is locked using two locking nuts 132a, so as to achieve the purpose of height adjustment of the rotating shaft assembly 13.

[0074] like Figure 13 As shown, Figure 13 This is a schematic diagram of the cutter holder assembly.

[0075] The hole-opening auxiliary positioning device in this embodiment may further include a cutting torch holder assembly 14, which is used to fix the plasma cutting torch E. The plasma cutting torch E is a hole-opening fixture, used for hole opening. The cutting torch holder assembly 14 is connected to the rotating shaft assembly 13, that is, the rotating shaft assembly 13 is used to indirectly install the hole-opening fixture to better fix the hole-opening fixture. Of course, the hole-opening fixture can also be directly installed on the rotating shaft assembly 13.

[0076] This embodiment does not limit the shape of the cutting torch holder assembly 14. Exemplarily, in this embodiment, the cutting torch holder assembly 14 includes a rectangular frame 141 made of bent flat steel of a certain width. The rectangular frame 141 has high overall strength and a large internal space, making it suitable for placing various types of plasma cutting torches E. The rectangular frame 141 has openings on its sides, such as... Figure 13 The circular hole shown reduces the weight of the bracket and provides operating and adjustment space on the side of the frame. A bearing sleeve 142 is welded to the center of the bottom of the rectangular frame 141, and a bearing 142a is embedded in the bearing sleeve 142. The bearing 142a and the bearing sleeve 142 can be interference-fitted. A fixing bracket 143 made of a circular tube with a notch is provided at the top of the rectangular frame 141. The fixing bracket 143 is clamp-shaped and can fix the plasma cutting torch 4. Specifically, the inner diameter of the fixing bracket 143 is greater than or equal to the torch head of the plasma cutting torch E. The torch head of the plasma cutting torch E can be fixed to the top of the rectangular frame 141 with six screws at 120° three-points and two layers. The notch of the fixing bracket 143 is oriented in the same direction as the handle of the plasma cutting torch E. The notch can avoid handle interference caused by differences in various models of cutting torches. The threaded shaft 132 of the rotating shaft assembly 13 is connected to the bearing sleeve 142 at the bottom of the rectangular frame 141. Since the bearing 142a in the bearing sleeve 142 at the bottom of the rectangular frame 141 can rotate in the opposite direction to the bearing 123a of the cantilever bracket assembly 12, the direction of the plasma cutting torch E handle can be fixed to the side of the operator, ensuring safety while ensuring the completion of the operation.

[0077] In this embodiment, the use of the hole-opening auxiliary positioning device can be divided into three steps: device setting, device positioning, and hole opening, to complete the single-hole positioning and hole opening work at the bottom of the top beam A, as detailed below:

[0078] ① Device setup: Adjust and lock the dimensions L2, L9, and L10 of the starting auxiliary positioning device according to the design. Set the starting auxiliary positioning device on the top of the hanging plate F above the two adjacent anode plates C. Then fix the plasma cutting torch E head in the fixed frame and adjust the optimal cutting distance between the torch head and the bottom of the top beam A.

[0079] ② Device positioning: Push the positioning plate 115 of the hole-opening auxiliary positioning device in this embodiment into the lugs B of the two adjacent anode plates C and make the slot 116a of the limiting plate 116 just lock the hanging steel D of the anode plate C device to achieve positioning of the center of the hole in the horizontal and vertical directions.

[0080] ③ The construction worker holds the plasma cutting torch E and rotates it along the predetermined trajectory to complete the drilling of a single hole. Repeating the above operation will complete the drilling of the bottom hole of the top beam A.

[0081] This embodiment only requires adjusting and fixing the starting auxiliary positioning device in the horizontal, vertical, and height directions as required. Pushing the device into the positioning point completes the positioning work. It offers the advantage of eliminating the need for repositioning after a single adjustment. Furthermore, the included cutting torch fixing device prevents instability in the cutting trajectory and distance when the operator holds the torch, achieving high-efficiency and high-precision drilling. Compared to the prior art where operators crouch on the top of the anode plate C in a confined space, leading to difficulties in locating the bottom hole of the top beam A and low dimensional accuracy, the drilling auxiliary positioning device in this embodiment reduces the difficulty of locating and drilling the bottom hole of the top beam A, improves the safety of construction personnel, and effectively improves the construction efficiency and quality of this process in large units with a large number of holes, thus reducing construction costs. Furthermore, since it can achieve precise positioning and high-quality, efficient drilling of the bottom hole of the top beam A, the positioning of the top hole of the top beam A can be verified by using the bottom hole to improve the accuracy of the hole's axial position. This solves the problem of hole axial position deviation caused by the method in the relevant technical solution where the operator first positions and drills the top hole based on the ideal, undeformed top beam A and then verifies the positioning and drilling of the bottom hole.

[0082] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make several improvements and modifications to this application without departing from the principles of this application, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A hole-opening auxiliary positioning device, characterized in that, The assembly includes a beam assembly (11), a cantilever bracket assembly (12), and a pivot assembly (13). The beam assembly (11) is connected to the cantilever bracket assembly (12). The cantilever bracket assembly (12) is connected to the pivot assembly (13). The pivot assembly (13) is used to directly or indirectly install the opening fixture. The transverse length of the beam assembly (11) is adjustable, the longitudinal length of the cantilever bracket assembly (12) is adjustable, and the height of the pivot assembly (13) is adjustable. The transverse, longitudinal, and height directions are perpendicular to each other.

2. The hole-opening auxiliary positioning device according to claim 1, characterized in that, The crossbeam assembly (11) includes a crossbeam unit, which includes an inner crossbeam one (1111), an inner crossbeam two (1112), and a crossbeam connecting sleeve (1113). The crossbeam connecting sleeve (1113) is sleeved on the inner crossbeam one (1111) and the inner crossbeam two (1112). The inner crossbeam one (1111) and the inner crossbeam two (1112) can slide laterally along the crossbeam connecting sleeve (1113) to adjust the lateral length of the crossbeam assembly (11).

3. The hole-opening auxiliary positioning device according to claim 2, characterized in that, The inner cross frame one (1111) and the inner cross frame two (1112) have the same structure and are arranged in a centrally symmetrical manner. The inner cross frame one (1111) and the inner cross frame two (1112) are provided with a protrusion and a recess at one end of their opposite arrangement. When the inner cross frame one (1111) and the inner cross frame two (1112) are retracted laterally into the cross frame sleeve (1113), the protrusion of the inner cross frame one (1111) can be inserted into the recess of the inner cross frame two (1112), and the protrusion of the inner cross frame two (1112) can be inserted into the recess of the inner cross frame one (1111).

4. The hole-opening auxiliary positioning device according to claim 3, characterized in that, The first inner crossbeam (1111) and the second inner crossbeam (1112) are provided with long strip-shaped grooves extending laterally, and the crossbeam sleeve (1113) has a limiting pin; or, the crossbeam sleeve (1113) is provided with long strip-shaped grooves extending laterally, and the first inner crossbeam (1111) and the second inner crossbeam (1112) are provided with limiting pins. The limiting pin is inserted into the long strip groove to connect the cross frame sleeve (1113) with the inner cross frame one (1111) and the inner cross frame two (1112).

5. The hole-opening auxiliary positioning device according to any one of claims 2-4, characterized in that, The crossbeam unit also includes a gear shaft (1114), a gear (1115), and a rack (1116). The gear (1115) is disposed at one end of the gear shaft (1114). Both the inner crossbeam one (1111) and the inner crossbeam two (1112) are provided with the rack (1116), and the rack (1116) cooperates with the gear (1115).

6. The hole-opening auxiliary positioning device according to claim 5, characterized in that, The beam assembly (11) includes two beam units and a connecting plate (113). The beam units are distributed with the connecting plate (113) at both ends in the transverse direction, and the two beam units are connected by the connecting plate (113).

7. The hole-opening auxiliary positioning device according to claim 6, characterized in that, The beam assembly (11) also includes a handle (114), one end of the gear shaft (1114) of one beam unit passes through the corresponding cross frame sleeve (1113), and the other end is the drive end, and the handle (114) is connected to the drive end.

8. The hole-opening auxiliary positioning device according to any one of claims 1-4, characterized in that, The beam assembly (11) also includes at least one pair of positioning plates (115) for supporting the top beam (A) of the anode plate system within the gap between two adjacent pairs of lugs (B).

9. The hole-opening auxiliary positioning device according to claim 8, characterized in that, The beam assembly (11) also includes a limiting plate (116) having a slot (116a) for engaging with the hanging steel (D) of the anode plate system.

10. The hole-opening auxiliary positioning device according to any one of claims 1-4, characterized in that, The cantilever bracket assembly (12) includes a fixed suspension (121), a telescopic suspension (122), and a bearing sleeve (123). The telescopic suspension (122) is embedded in the fixed suspension (121) and can extend and retract longitudinally relative to the fixed suspension (121) to adjust the longitudinal length. The fixed suspension (121) is connected to the crossbeam assembly (11). The bearing sleeve (123) is connected to the pivot assembly (13), and the bearing sleeve (123) is embedded in the telescopic suspension (122) along the height direction.

11. The hole-opening auxiliary positioning device according to claim 10, characterized in that, One of the fixed suspension (121) and the telescopic suspension (122) is provided with a groove (122a) extending along the longitudinal direction, and the other is provided with a sliding pin (121a) inserted into the groove (122a); The fixed suspension (121) is provided with a positioning bolt (1211), which is threadedly connected to the fixed suspension (121). The positioning bolt (1211) can abut against the telescopic suspension (122) to position the telescopic suspension (122) and the fixed suspension (121).

12. The hole-opening auxiliary positioning device according to any one of claims 1-4, characterized in that, The pivot assembly (13) includes a pivot (131), a threaded shaft (132), and a pivot connecting plate (133). The pivot (131) is connected to the pivot connecting plate (133), and the pivot (131) is connected to the cantilever bracket assembly (12). The threaded shaft (132) is connected to the pivot connecting plate (133) to adjust the height of the pivot assembly (13).

13. The hole-opening auxiliary positioning device according to claim 12, characterized in that, The rotating shaft connecting plate (133) is provided with a strip hole (133a) extending along the longitudinal direction, and the threaded shaft (132) passes through the strip hole (133a).

14. The hole-opening auxiliary positioning device according to any one of claims 1-4, characterized in that, It also includes a cutting torch holder assembly (14), which is used to fix a plasma cutting torch (E), the plasma cutting torch (E) being the hole-opening fixture; the cutting torch holder assembly (14) is connected to the rotating shaft assembly (13).

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