A manufacturing and processing device for an electric porcelain insulator
Patent Information
- Application Number
- CN202611153183.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-07-31
- Publication Date
- 2026-09-25
AI Technical Summary
操作人员完成外壁加工后，需要取下绝缘子以及重新定位装夹才能开展内壁修坯，然后多次拆装不仅耗费人力还会拉长加工节拍，每一次装夹都会产生定位偏移，直接造成坯体内外圆不同心
1、本发明设置上下配套的安装盘一与安装盘二形成双端定心夹持结构，依靠弧形槽与内撑夹持爪机械扩张实现坯体内孔自定位，安装盘二配套转动轮辅助坯体平稳回转，同时搭配可独立进给的伞裙外圆修坯刀板、可径向自适应调节的内修坯板，能够在单次装夹工序中同步完成绝缘子外壁伞裙切削与内壁修坯加工，无需二次翻面拆装坯体，有效消除二次装夹带来的同轴度偏差，降低空心瓷坯崩边概率，大幅提升绝缘子内外壁尺寸均匀度与整体加工效率。
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Figure CN122808055A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of porcelain insulator processing technology, specifically to a porcelain insulator manufacturing and processing apparatus. Background Technology
[0002] In the field of high-voltage power equipment manufacturing, after the hollow umbrella-type porcelain insulator is formed, there is a forming allowance on the outer wall of the insulator, the column, and the inner wall. These must be trimmed to ensure dimensional accuracy and surface finish. Trimming equipment is the core equipment in the porcelain processing stage. Currently, traditional trimming equipment on the market mostly separates the outer wall skirt cutting and the inner wall / inner hole trimming. After completing the outer wall processing, operators need to remove the insulator and reposition it before they can begin inner wall trimming. This repeated disassembly and reassembly is not only labor-intensive but also lengthens the processing cycle. Each clamping operation causes positioning misalignment, directly resulting in misalignment between the inner and outer circles of the insulator. Furthermore, dry-cutting operations continuously generate a large amount of dry porcelain dust, and existing equipment has significant shortcomings in dust control. Most equipment requires additional fans and independent pipelines for dust extraction, and the entire dust removal system requires separate power and control components, resulting in a complex overall structure and high production costs.
[0003] Therefore, a solution is proposed. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention provides a manufacturing and processing apparatus for porcelain insulators, which solves the problems mentioned in the background section.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a manufacturing and processing apparatus for porcelain insulators, comprising a processing frame; a horizontally fixed mounting plate at the top of the processing frame, an electric telescopic rod mounted on the top of the mounting plate, and a mounting frame fixedly connected to the output end of the electric telescopic rod; an electric turntable mounted at the bottom of the mounting frame, a connecting frame mounted below the electric turntable, a drive motor fixedly connected to the bottom of each set of connecting frames, and a mounting disc coaxially fixedly connected to the output shaft of the drive motor; multiple arc-shaped grooves are formed circumferentially on the outer wall of the mounting disc; the mounting frame... Multiple connecting plates are fixedly connected to the inner side. The connecting plates are slidably connected to the first mounting plate. A movable strip is horizontally slidably assembled at the lower part of the connecting plate. An inner support clamping claw is fixedly connected to the outer side of the movable strip. The end of the inner support clamping claw is slidably fitted into the arc-shaped groove. The inner cavity of the processing frame is provided with a second mounting plate that is directly opposite the first mounting plate. When the drive motor drives the first mounting plate to rotate synchronously, the arc-shaped groove swings circumferentially with the first mounting plate. The groove wall of the arc-shaped groove pushes against the inner support clamping claw. The inner support clamping claw moves synchronously radially along the movable strip to tighten and limit the inner hole of the porcelain insulator.
[0006] Preferably, the inner trimming support cylinder is vertically fixed at the center of the second mounting plate. A bidirectional screw is rotatably provided inside the inner trimming support cylinder. Threaded blocks are symmetrically threaded on the outer surface of the bidirectional screw. A hinge rod is hinged to the outer side of the threaded block. An inner trimming plate is rotatably connected to the end of the hinge rod. A movable telescopic rod for guide support is provided on the outer side of the inner trimming support cylinder. Multiple second mounting plates are fixed to the outer wall of the processing frame. An electric telescopic rod is installed on the outer side of the second mounting plates. A moving plate is connected to the output end of the electric telescopic rod. Multiple umbrella-shaped outer circle trimming blades are fixed to the moving plate facing the billet. A transmission component that is linked to the drive motor and a negative pressure dust removal component are assembled on the connecting plate.
[0007] Preferably, the top of the bidirectional screw is equipped with a manual adjustment knob, the threaded block synchronously opens or closes multiple inner trimming plates through the hinge rod, and the two ends of the movable telescopic rod are respectively connected to the inner trimming support cylinder and the inner trimming plate, forming a radial rigid guide for the inner trimming plate.
[0008] Preferably, the transmission assembly includes a synchronous belt, a first synchronous pulley is fixed at the output end of the drive motor, a second synchronous pulley is rotatably mounted on the top surface of the connecting plate, the two sets of synchronous pulleys are connected by a synchronous belt, a drive disk is fixedly connected to the top surface of the second synchronous pulley, a drive block is fixedly connected to the eccentric position outside the drive disk, a rotating frame is rotatably mounted on the upper surface of the connecting plate, a long movable groove is opened inside the rotating frame, a sector gear is fixed at one end of the rotating frame, a moving rod is horizontally slidably mounted on the connecting plate, and a rack plate is fixed to the outer wall of the moving rod.
[0009] Preferably, the drive block is slidably disposed in the movable groove, and the rack plate meshes with the sector gear.
[0010] Preferably, two sets of negative pressure cylinders are symmetrically arranged on the top of the connecting plate. Each set of negative pressure cylinders has a rubber piston that is internally sealed and slidably assembled. A piston push rod is rigidly fixedly connected to the outer end face of the rubber piston. The end of the piston push rod away from the piston is fixedly connected to the end of the moving rod. When the moving rod slides back and forth, it pushes and pulls the piston push rod simultaneously, causing the rubber piston to move back and forth inside the negative pressure cylinder, continuously changing the volume of the sealed cavity inside the cylinder.
[0011] Preferably, each set of negative pressure cylinders has an air inlet pipe and an installation pipe connected to its outer wall. One-way valves are installed in the inner cavities of the air inlet pipe and the installation pipe, and the airflow directions of the two one-way valves are opposite. The end of the installation pipe is connected to a rigid connecting pipe. Several negative pressure pipes are evenly opened along the length of the connecting pipe wall. The end of each connecting pipe away from the negative pressure guide pipe is connected to a collection cylinder. The two sets of connecting pipes are respectively arranged at the cutting position of the outer shed of the insulator and the cutting position of the inner wall of the inner blank support cylinder.
[0012] Preferably, a limiting block is fixedly connected to the outer side of the connecting plate, the movable strip is slidably connected inside the limiting block, and multiple sets of rotating wheels are evenly arranged around the circumference of the two top surfaces of the mounting plate, with all the rotating wheels arranged in a ring around the inner blank-cutting support cylinder.
[0013] This invention provides a manufacturing and processing apparatus for porcelain insulators. It has the following beneficial effects: 1. This invention features a double-ended centering clamping structure consisting of two matching mounting discs, one upper and one lower. The inner hole of the blank is self-positioned by mechanical expansion using an arc-shaped groove and internal support clamping claws. Mounting disc two is equipped with a rotating wheel to assist in the smooth rotation of the blank. Simultaneously, it is equipped with an independently feedable trimming blade for the outer circle of the insulator skirt and an internal trimming plate that can be radially adaptively adjusted. This allows for simultaneous completion of the cutting of the outer skirt and the trimming of the inner wall of the insulator in a single clamping operation, eliminating the need for secondary flipping and disassembly of the blank. This effectively eliminates coaxiality deviation caused by secondary clamping, reduces the probability of chipping edges in hollow porcelain blanks, and significantly improves the dimensional uniformity of the inner and outer walls of the insulator and overall processing efficiency.
[0014] 2. This device relies on the same power source of the drive motor to drive the eccentric transmission component and the negative pressure cylinder to operate synchronously. It utilizes the difference in cross-sectional area between the cylinder cavity and the mounting pipe to create a Venturi negative pressure adsorption effect. The two sets of connecting pipes with negative pressure pipes fully cover the inner and outer blanking stations, which can suck up the dry porcelain dust generated during blanking in real time and collect it into the collection cylinder for centralized storage. The entire dust removal structure does not require an additional fan or independent power source, which significantly improves the appearance quality of the finished porcelain insulators. Attached Figure Description
[0015] Figure 1 This is a perspective view of the present invention; Figure 2 This is a schematic diagram of the mounting plate structure of the present invention; Figure 3 This is a schematic diagram of the negative pressure pipe structure of the present invention; Figure 4 This is a schematic diagram of the piston push rod structure of the present invention; Figure 5 This is a schematic diagram of the connecting pipe structure of the present invention; Figure 6 This is a schematic diagram of the second installation disk structure of the present invention; Figure 7 for Figure 5 Enlarged view of point A in the middle; Figure 8 for Figure 4 Enlarged view of point B in the middle; Figure 9 This is a schematic diagram of the movable plate structure of the present invention; Figure 10 This is a schematic diagram of the internal structure of the mounting cylinder of the present invention.
[0016] Among them, 1. Processing frame; 21. Mounting plate 1; 22. Electric telescopic pole 1; 23. Mounting bracket; 31. Mounting plate one; 32. Limiting block; 33. Inner support clamping claw; 34. Movable strip; 35. Arc groove; 41. Mounting plate two; 42. Electric telescopic rod two; 43. Moving plate; 44. Umbrella skirt outer circle trimming blade; 5. Installation disk two; 61. Negative pressure cylinder; 62. Connecting pipe; 63. Negative pressure pipe; 64. Mounting pipe; 65. Collecting cylinder; 66. Rack plate; 67. Moving rod; 68. Drive disc; 69. Drive block; 610. Rotating frame; 611. Sector gear; 612. Synchronous belt; 613. Inlet pipe; 614. Piston push rod; 7. Rotate the wheel; 81. Internal trimming support cylinder; 82. Two-way screw; 83. Threaded block; 84. Movable telescopic rod; 85. Hinge rod; 86. Internal trimming plate; 9. Connecting plate. Detailed Implementation
[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0018] Please see the appendix Figure 1 -Appendix Figure 10This invention provides a manufacturing and processing apparatus for porcelain insulators. The basic supporting component of the whole machine is the processing frame 1. A horizontal mounting plate 21 is fixed on the top gantry beam of the processing machine frame 1. The mounting plate 21 is made of thickened steel plate. Two electric telescopic rods 22 are vertically and symmetrically mounted on the surface of the mounting plate 21. The two electric telescopic rods 22 are synchronously and electrically controlled for lifting. The flange at the lower end of the piston rod is rigidly locked to the top surface of the mounting frame 23. The dual-rod synchronous lifting design can prevent the mounting frame 23 from tilting on one side and stably adjust the overall height of the upper clamping unit. The mounting frame 23 adopts a box-type welded frame structure with uniform overall weight. A high-torque electric turntable is mounted at the bottom. Multiple independent connecting frames are evenly arrayed along the circumference of the lower end face of the electric turntable. Each connecting frame is vertically locked to the end face of the turntable by bolts. A servo drive motor is vertically fixed at the bottom of each connecting frame. The output shaft of the drive motor extends downward. The mounting plate 31 is a thickened circular alloy plate. Four arc-shaped grooves 35 are evenly opened along the circumference of the outer peripheral wall of the plate. The curvature of the four arc-shaped grooves 35 is one To ensure the synchronous expansion of the four sets of clamping claws, four symmetrically arranged connecting plates 9 are vertically fixed inside the mounting frame 23. The connecting plates 9 are vertical wear-resistant steel plates with a clearance fit to the outer wall of the mounting plate 31. A horizontal guide groove is milled on the lower part of the plate surface, and a wear-resistant copper sleeve is inlaid inside the groove. The movable strip 34 is slidably assembled inside the groove. The copper sleeve can reduce the friction loss of the movable strip 34 during reciprocating sliding and extend its service life. The movable strip 34 is vertically welded with the inner support clamping claw 33 on the side facing the mounting plate 31. The end of the inner support clamping claw 33 is a rounded transition structure and slides into the arc groove 35. When the drive motor drives the mounting plate 31 to rotate circumferentially, the inner wall of the arc groove 35 continuously applies a horizontal radial thrust to the end of the clamping claw. Under the horizontal limiting constraint of the movable strip 34 and the groove, the four sets of inner support clamping claws 33 expand outward synchronously and uniformly fit the inner wall of the insulator blank at multiple points to achieve coaxial self-centering clamping of the upper part of the blank. The limiting block 32 is fixed by bolts on the outer wall of the connecting plate 9. A through sliding hole is opened inside the limiting block 32, and the movable strip 34 passes through the sliding hole as a whole.
[0019] On the bottom support platform of the processing frame 1, mounting discs 2 and 5 are vertically aligned with each set of mounting discs 31. The overall circular shape and clamping layout of mounting discs 2 and 5 match those of mounting discs 31. All mounting discs 2 and 5 share a bottom synchronous drive motor. The motor output is equipped with a drive pulley. The bottom of each mounting disc 2 and 5 is coaxially fixed with a driven pulley. A synchronous belt is wrapped around the drive pulley and all driven pulleys. The belt drive enables all mounting discs 2 and 5 to rotate synchronously and uniformly, ensuring that the billet speed is consistent and eliminating the torsional stress of the billet. Four sets of rotating wheels 7 are evenly arranged around the circumference of the top surface of the mounting disc 2 and are evenly distributed around the center of the disc. The outer layer of the wheels is covered with a wear-resistant rubber buffer layer. The billet is placed vertically on the upper surface of the four sets of rotating wheels 7. When the billet rotates synchronously with the upper clamping mechanism, the friction between the bottom end face of the billet and the rubber wheel surface drives the rotating wheels 7 to rotate, converting the sliding friction of the bottom of the billet into rolling friction, which greatly reduces the scratch defects on the bottom surface of the billet. The inner blank-cutting support cylinder 81 is vertically welded and fixed at the center of mounting plate 25. The inner blank-cutting support cylinder 81 is rotatably connected to a bidirectional screw 82. The bidirectional screw 82 is divided into upper and lower sections with opposite thread directions. The top of the screw extends upwards from the upper surface of the support cylinder, and an anti-slip manual adjustment knob is fitted to the exposed end. Rotating the knob allows the operator to synchronously drive the components on the two threaded sections to move in opposite directions. A set of threaded blocks 83 is threaded onto the upper and lower threaded surfaces of the bidirectional screw 82. Each threaded block 83 is symmetrically hinged to two hinge rods 85 on its left and right sides. The ends of the hinge rods 85 are jointly hinged to a single... The inner trimming plate 86 is formed by four inner trimming plates 86 together to form a complete circular cutting ring, which is suitable for trimming the inner holes of insulators with different inner diameters. Four movable telescopic rods 84 are evenly arranged radially around the inner trimming support cylinder 81. The movable telescopic rods 84 adopt a sleeve telescopic structure. One end of the telescopic rod is fixed to the outer wall of the support cylinder, and the other end is locked to the inner side plate of the inner trimming plate 86. The telescopic rod and the hinge rod 85 form a double support and guide structure. When the inner wall is cut, the inner trimming plate 86 is radially rigidly limited to prevent the blade from deviating to one side and squeezing the blank, so as to ensure that the cutting allowance is uniform in all parts of the inner wall.
[0020] On the outer walls of the vertical plates on both sides of the processing frame 1, multiple mounting plates 41 are fixed in layers along the vertical height. Each mounting plate 41 extends horizontally outward, and an electric telescopic rod 42 is horizontally fixed on the outer side of the plate. The electric telescopic rod 42 is arranged horizontally, with the piston rod facing the blank station inside the equipment. A moving plate 43 is installed at the output end of the electric telescopic rod 42. A guide slider is set on the back of the moving plate 43. The moving plate 43 faces the front of the insulator and has multiple layers of umbrella skirt outer circle trimming blades 44. The concave curved surface of each umbrella skirt outer circle trimming blade 44 perfectly matches the single section of the insulator. The umbrella skirt shape and the height difference of the multiple blades correspond one-to-one with the spacing of the multi-layer umbrella skirt of the insulator. When the electric telescopic rod 42 pushes the moving plate 43 for horizontal feeding, the multi-layer blades can simultaneously fit against the outer wall of the multi-layer umbrella skirt and cut synchronously, eliminating the need for multiple machine stops to adjust the tool position and significantly shortening the outer wall finishing time. The transmission assembly includes a first synchronous pulley, a second synchronous pulley, a synchronous belt 612, a drive disc 68, a drive block 69, a rotating frame 610, a sector gear 611, a rack plate 66, and a moving rod 67. The first synchronous pulley is interference-fitted to the middle section of the output shaft of the clamping drive motor. The top surface of the connecting plate 9 is rotatably mounted with a second synchronous pulley via a vertical bearing seat. The outer diameters of the first and second synchronous pulleys are matched, and a rubber synchronous belt 612 is fitted on their outer sides. A drive disc 68 is coaxially fixedly connected to the upper end face of the second synchronous pulley. The drive disc 68 is a circular steel disc, and a cylindrical drive block 69 is vertically welded off-center on the disc surface. The top surface of the connecting plate 9 is hinged to a rotating frame 610 via a pin. A long rectangular movable groove is opened in the middle of the rotating frame 610. The drive block 69, along with its bushing, slides into the movable groove. The drive disc 68 continuously rotates eccentrically around the circumference with the synchronous pulley. At this time, the drive block 69 slides back and forth in the movable groove, continuously pushing and pulling the rotating frame 610 to swing back and forth around the bottom pin. The end of the rotating frame 610 away from the hinge pin is integrally formed with a sector gear 611. The teeth of the sector gear 611 are evenly arranged. The top surface of the connecting plate 9 is milled with a horizontal long guide slide. The upper surface of the moving rod 67 is vertically welded with a rack plate 66. The tooth surface of the rack plate 66 is vertically upward and meshes with the teeth of the sector gear 611. During the reciprocating swing of the sector gear 611, the rack plate 66 and the moving rod 67 are continuously driven to slide back and forth in a straight line along the horizontal slide rail. Two sets of negative pressure cylinders 61 are symmetrically arranged on the top surface of the connecting plate 9. The negative pressure cylinders 61 are installed horizontally, and both ends of the cylinder barrel are locked to the surface of the connecting plate 9 by brackets. A whole piece of rubber piston is sealed and assembled in the hollow cavity inside the cylinder. The outer ring of the rubber piston is provided with multiple sealing annular protrusions, which fit tightly against the inner wall of the cylinder barrel. The piston push rod 614 is rigidly fixed outward from the center of the rubber piston. The piston push rod 614 passes through the outer end cover of the cylinder and is equipped with a dustproof ring to prevent dust from entering the cylinder and wearing the piston. The outer end of the piston push rod 614 is connected to the end of the moving rod 67 by a locking clamp. When the moving rod 67 slides back and forth, it pushes the piston push rod 614 simultaneously, causing the rubber piston to move back and forth inside the cylinder, periodically expanding and shrinking the volume of the sealed cavity inside the cylinder. Two rigid rods are connected to the upper and lower parts of the outer wall of each set of negative pressure cylinders 61. The pipeline consists of an upper inlet pipe 613 and a lower installation pipe 64. Each inlet pipe 613 and installation pipe 64 has an independent one-way valve built into its inner cavity, with the airflow directions of the two one-way valves being completely opposite. The cross-sectional area of the sealed cavity inside the negative pressure cylinder 61 is much larger than the inner diameter of the installation pipe 64. Each end of the installation pipe 64 is connected to a rigid plastic connecting pipe 62 via a quick-connect fitting. The connecting pipe 62 extends along the cutting area inside the frame, with a row of uniformly sized negative pressure pipes 616 evenly spaced along its length. The openings of the negative pressure pipes 616 face the dust-generating position of the cutting tool. When the cylinder piston compresses the cavity forward, the high-pressure airflow can only enter the connecting pipe 62 at high speed through the narrow installation pipe 64. Based on the Venturi fluid effect, the high-speed jet forms a stable negative pressure adsorption zone at each negative pressure pipe 616 opening. The machine is internally equipped with two sets of complete connecting pipes 62. The first set of connecting pipes 62 is arranged along the outer circumference of the outer skirt trimming blade 44, fully covering the area where dry porcelain dust is generated during the cutting of the insulator's outer wall. The second set of connecting pipes 62 is arranged along the outer periphery of the inner trimming support cylinder 81, aligning with the cutting position of the inner trimming plate 86 on the inner wall, eliminating blind spots in both dust-generating areas. The end of each connecting pipe 62 furthest from the installation pipe 64 is detachably threaded to a collection cylinder 65. A high-density filter screen is detachably placed inside the opening of the collection cylinder 65. Fine dry porcelain dust and broken porcelain chips generated during the cutting of the blank are sucked into the connecting pipe 62 from the opening of the negative pressure pipe 616 under the action of negative pressure suction. They are then continuously drawn into the collection cylinder 65 with the high-speed airflow. The filter screen intercepts solid dust and debris, and the clean airflow is discharged from the pressure relief port at the tail of the collection cylinder. When the equipment is shut down for maintenance, only the collection cylinder 65 needs to be unscrewed to remove the filter screen for cleaning the accumulated dust. Disassembly and assembly are convenient, and there is no need to disassemble the entire dust collection pipeline.
[0021] Working principle: When using this device, its operating principle includes the following: Before operation, the porcelain insulator blank is vertically placed above mounting plate 25. The overall layout and structure of mounting plate 25 are roughly the same as those of mounting plate 131, which can provide support and positioning from below the inner hole of the blank. Multiple sets of rotating wheels 7 are arranged around the center of mounting plate 25. The rotating wheels 7 are close to the outer ring of the bottom end of the blank and can rotate with the blank when the blank rotates, reducing friction loss at the bottom of the blank and completing the pre-installation and positioning of the blank. Then, the electric telescopic rod 122 is activated and extends downward. Guided by the mounting plate 121 on the top of the processing frame 1, the mounting frame 23 is moved vertically downward as a whole, so that mounting plate 131 is aligned with the inside of the insulator blank. The height of the hole is adjusted, and then the drive motor below the mounting bracket 23 is turned on. The motor drives the mounting plate 31 to rotate in a circular motion. The arc-shaped grooves 35 distributed on the outer wall of the mounting plate 31 swing synchronously. The groove walls of the arc-shaped grooves 35 continuously push the inner support clamping claws 33. Under the sliding limit action of the inner support clamping claws 33 and the movable strip 34 assembled at the lower part of the connecting plate 9, multiple sets of inner support clamping claws 33 expand outward synchronously, tighten and fit against the upper part of the inner hole of the blank, and cooperate with the mounting plate 2 below to form a bidirectional centering clamping. After the clamping and positioning is completed, the electric turntable at the bottom of the mounting bracket 23 drives the mounting plate 31 and the inner support clamping The claw 33, along with the insulator blank, rotates at a uniform speed. Simultaneously, the bottom of the blank drives the rotating wheel 7 on the mounting plate 2 5 to rotate. This synchronized rotation provides stable cutting conditions for subsequent insulator inner and outer wall trimming. During the outer wall trimming stage, the electric telescopic rod 2 42 extends horizontally to push the moving plate 43 towards the rotating insulator blank. The multi-piece skirt outer circle trimming blade 44 adheres to the multi-layer skirts and the outer wall of the column, continuously cutting and removing excess mortar as the blank rotates, completing the rough and fine trimming of the insulator's outer contour. Simultaneously, the inner wall trimming operation is carried out. The operator turns the manual adjustment knob to drive the bidirectional screw 82 to rotate inside the inner trimming support cylinder 81. Two sets of threaded blocks 83, symmetrically threaded on the surface of the bidirectional screw 82, slide synchronously towards or away from each other. The hinged rod 85, hinged to the outside of the threaded blocks 83, swings synchronously, causing the inner trimming plate 86 connected to its push-pull end to extend and retract radially. The movable telescopic rod 84, arranged on the outside of the inner trimming support cylinder 81, connects the support cylinder and the inner trimming plate 86 at both ends, forming a radially rigid guide for the blade, ensuring that the inner trimming plate 86 smoothly fits against the inner wall of the insulator for cutting. This adapts to the trimming needs of hollow porcelain blanks with different inner diameters. After the drive motor starts, the power is transmitted via the synchronous belt 612 to the second synchronous pulley mounted on the top surface of the connecting plate 9. The second synchronous pulley drives the drive disc 68 to rotate, and the drive block 69 synchronously performs eccentric circular motion. Since the drive block 69 is slidably set in the long movable slot opened inside the rotating frame 610, the eccentric motion drives the rotating frame 610 to swing back and forth, which in turn drives the sector gear 611 to swing back and forth. The sector gear 611 continuously meshes with the rack plate 66 fixed to the outer wall of the moving rod 67, thereby converting the swing motion into the horizontal reciprocating linear motion of the moving rod 67. During the reciprocating sliding process of the moving rod 67, the piston push rod 614 is pushed and pulled synchronously. The piston push rod 614 drives the internal negative pressure cylinder 61. The rubber piston slides back and forth, periodically changing the volume of the sealed cavity inside the negative pressure cylinder 61. When the rubber piston retracts and the cylinder volume expands, outside air is supplied to the cylinder in one direction through the air intake pipe 613. When the rubber piston compresses the cylinder volume forward, the high-pressure airflow inside the cylinder can only be ejected outward in one direction through the mounting pipe 64. The cross-sectional area of the cavity inside the negative pressure cylinder 61 is much larger than the flow cross-sectional area of the mounting pipe 64. The compressed airflow is ejected at high speed through the narrow mounting pipe 64. The high-speed airflow enters the rigid connecting pipe 62 connected to the end of the mounting pipe 64. According to the Venturi effect, a low-pressure area is formed inside the connecting pipe 62. The several negative pressure pipes 616 opened on the wall of the connecting pipe 62 then generate adsorption negative pressure. Two sets of connecting pipes 62 are respectively arranged at the outer skirt cutting station of the insulator and the inner wall cutting station of the inner blank support cylinder 81. The dry porcelain dust and fine mud generated during the blanking operation are sucked into the connecting pipe 62 from the negative pressure pipe 616 under the negative pressure adsorption effect, and are collected together with the high-speed airflow into the collection cylinder 65 connected at the end of the connecting pipe 62. After completing all the inner and outer wall trimming and dust collection processes, the electric telescopic rod 2 42 is retracted in sequence to detach the trimming blade 44 from the blank body. The bidirectional screw 82 is turned in the opposite direction to retract the inner trimming plate 86. The drive motor reverses to drive the arc groove 35 to retract. The inner support clamping claw 33 radially retracts to loosen the inner hole of the insulator. The electric telescopic rod 1 22 lifts the mounting frame 23 upward. The operator can then remove the processed porcelain insulator blank from the mounting plate 2 5, thus completing a single trimming cycle.
[0022] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A manufacturing and processing apparatus for porcelain insulators, characterized in that, The machine includes a processing frame (1); a horizontally fixed mounting plate (21) is mounted on the top of the processing frame (1), and an electric telescopic rod (22) is mounted on the top of the mounting plate (21). The output end of the electric telescopic rod (22) is fixedly connected to a mounting bracket (23); an electric turntable is mounted on the bottom of the mounting bracket (23), and a connecting bracket is installed below the electric turntable. A drive motor is fixedly connected to the bottom of each set of connecting brackets, and a mounting plate (31) is fixedly connected to the output shaft of the drive motor on the same axis. Multiple arc-shaped grooves (35) are opened circumferentially on the outer wall of the mounting plate (31). Multiple connecting plates (9) are fixedly connected to the inner side of the mounting bracket (23). The connecting plates (9) and the mounting plate (31) are connected to the mounting plate (31). 1) Sliding connection, the lower part of the connecting plate (9) is horizontally slidably fitted with a movable strip (34), the outer side of the movable strip (34) is fixedly connected with an inner support clamping claw (33), the end of the inner support clamping claw (33) is slidably fitted into the arc groove (35), the inner cavity of the processing frame (1) is provided with a second mounting plate (5) that is directly opposite to the first mounting plate (31) one above the first mounting plate (31), when the drive motor drives the first mounting plate (31) to rotate synchronously, the arc groove (35) swings around with the first mounting plate (31), the groove wall of the arc groove (35) pushes against the inner support clamping claw (33), the inner support clamping claw (33) moves synchronously radially along the movable strip (34) to tighten and limit the inner hole of the porcelain insulator.
2. The manufacturing and processing apparatus for porcelain insulators according to claim 1, characterized in that, The mounting plate 2 (5) has an internal trimming support cylinder (81) vertically fixed at its center. The internal trimming support cylinder (81) is provided with a bidirectional screw (82) that rotates inside. The outer surface of the bidirectional screw (82) is symmetrically threaded with threaded blocks (83). The outer side of the threaded blocks (83) is hinged with a hinge rod (85). The end of the hinge rod (85) is rotatably connected to an internal trimming plate (86). The outer side of the internal trimming support cylinder (81) is provided with a movable telescopic rod (84) for guiding support. Multiple mounting plates 2 (41) are fixed on the outer wall of the processing frame (1). Electric telescopic rod 2 (42) is installed on the outer side of the mounting plates 2 (41). The output end of the electric telescopic rod 2 (42) is connected to a moving plate (43). Multiple umbrella-shaped outer circle trimming blades (44) are fixed on the moving plate (43) facing the blank body. The connecting plate (9) is equipped with a transmission component that is linked to the drive motor and a negative pressure dust removal component.
3. The manufacturing and processing apparatus for electrical porcelain insulators according to claim 2, characterized in that, The top of the bidirectional screw (82) is equipped with a manual adjustment knob. The threaded block (83) synchronously opens or closes multiple inner trimming plates (86) through the hinge rod (85). The two ends of the movable telescopic rod (84) are respectively connected to the inner trimming support cylinder (81) and the inner trimming plate (86), forming a radial rigid guide for the inner trimming plate (86).
4. The manufacturing and processing apparatus for electrical porcelain insulators according to claim 3, characterized in that, The transmission assembly includes a synchronous belt (612), the output end of the drive motor is fixed with a first synchronous pulley, the top surface of the connecting plate (9) is rotatably equipped with a second synchronous pulley, the two sets of synchronous pulleys are connected by a synchronous belt (612), the top surface of the second synchronous pulley is fixedly connected with a drive disc (68), the drive disc (68) is fixedly connected with a drive block (69) at an eccentric position outside the drive disc (68), the upper surface of the connecting plate (9) is rotatably equipped with a rotating frame (610), the rotating frame (610) has a long movable groove inside, one end of the rotating frame (610) is fixed with a sector gear (611), the connecting plate (9) is horizontally slidably equipped with a moving rod (67), and the outer wall of the moving rod (67) is fixed with a rack plate (66).
5. The manufacturing and processing apparatus for electrical porcelain insulators according to claim 4, characterized in that, The drive block (69) is slidably disposed in the movable groove, and the rack plate (66) meshes with the sector gear (611).
6. The manufacturing and processing apparatus for electrical porcelain insulators according to claim 4, characterized in that, Two sets of negative pressure cylinders (61) are symmetrically arranged on the top of the connecting plate (9). Each set of negative pressure cylinders (61) has a rubber piston that is sealed and slidably assembled inside. The outer end face of the rubber piston is rigidly fixedly connected to a piston push rod (614). The end of the piston push rod (614) away from the piston is fixedly connected to the end of the moving rod (67). When the moving rod (67) slides back and forth, it pushes and pulls the piston push rod (614) simultaneously, causing the rubber piston to move back and forth inside the negative pressure cylinder (61), continuously changing the volume of the sealed cavity inside the cylinder.
7. The manufacturing and processing apparatus for electrical porcelain insulators according to claim 6, characterized in that, Each set of negative pressure cylinders (61) has an air inlet pipe (613) and an installation pipe (64) connected to its outer wall. One-way valves are installed in the inner cavities of the air inlet pipe (613) and the installation pipe (64). The airflow directions of the two one-way valves are opposite. The end of the installation pipe (64) is connected to a rigid connecting pipe (62). Several negative pressure pipes (63) are evenly opened along the length of the connecting pipe (62). The end of each connecting pipe (62) is connected to a collection cylinder (65). The two sets of connecting pipes (62) are respectively arranged at the outer skirt cutting station of the insulator and the inner wall cutting station of the inner blank support cylinder (81).
8. The manufacturing and processing apparatus for electrical porcelain insulators according to claim 1, characterized in that, The outer side of the connecting plate (9) is fixedly connected to the limiting block (32), and the movable strip (34) is slidably connected inside the limiting block (32). Multiple sets of rotating wheels (7) are evenly arranged around the top surface of the mounting plate (5), and all the rotating wheels (7) are arranged in a ring around the inner blanking support cylinder (81).