A portable shim grinding apparatus and shim grinding method

Abstract

The present application relates to a kind of portable base plate grinding equipment and base plate grinding method, it includes: support frame, longitudinal sliding setting on support frame transverse beam, transverse sliding setting on transverse beam main shaft lifting mechanism, lifting setting on main shaft lifting mechanism tool spindle and detachably setting on tool spindle tool;Support frame includes: two opposite support beams, the two ends of transverse beam are provided with two longitudinal sliding blocks, and transverse beam is slidably arranged on two support beams by two longitudinal sliding blocks;Two foldable movable beams, movable beam includes two movable beam components, the end of two movable beam components is hinged to each other, and the other end of movable beam component is hinged to the end of support beam;After movable beam is unfolded, two movable beam components are transversely flat, by applying pin assembly to fix movable beam, to keep the relative distance between two support beams;After movable beam is folded, two movable beam components are close to each other, so that two support beams are close, for the carrying and scene of support frame.

Description

Technical Field

[0001] This invention relates to the field of CNC machining equipment technology, specifically to a portable pad grinding device and a pad grinding method. Background Technology

[0002] During construction, the base or base plate of large structures is often pre-embedded in the foundation to form pre-embedded pads. The structure is then fixedly installed on the pads to quickly complete the installation. Before and after the pre-embedded pad process, the pads need to be ground flat or drilled. Depending on the site conditions, the surface of the pads may even need to be milled.

[0003] In existing technologies, the surface processing of embedded pads is mostly done manually by operators. For drilling and milling, the pads need to be transported to processing equipment for specialized drilling and milling. Manual grinding of the pad surface is inefficient and labor-intensive for operators; the time spent picking up and placing the pads during drilling and milling reduces the installation efficiency of the embedded pads; in addition, drilling and milling equipment occupies space on the construction site, increasing the overall construction cost. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a portable pad grinding device, wherein the bottom support frame has two states: folded and unfolded. The bottom support frame can be quickly unfolded and placed above the pre-embedded pad. The folded bottom frame can be easily moved and transported to process multiple pre-embedded pads at the construction site.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows:

[0006] A portable pad grinding device, comprising:

[0007] A support frame, a transverse beam that slides longitudinally on the support frame, a spindle lifting mechanism that slides laterally on the transverse beam, a tool spindle that is lifted and lowered on the spindle lifting mechanism, and a tool that is detachably mounted on the tool spindle;

[0008] The supporting framework includes:

[0009] Two longitudinally opposite support beams are provided, and two longitudinal sliders are provided at both ends of the transverse beam. The transverse beam is slidably mounted on the two support beams through the two longitudinal sliders.

[0010] Two foldable movable beams, each movable beam comprising two movable beam components, one end of each movable beam component being hinged to the other end of the movable beam component being hinged to the end of the support beam;

[0011] After the movable beams are unfolded, the two movable beam members are in a horizontally straight state. By applying a pin assembly to fix the movable beams, the relative distance between the two support beams is maintained. When the movable beams are folded, the two movable beam members靠拢 to make the two support beams靠拢, which is used for the handling and transfer of the support frame.

[0012] As a preferred embodiment, a number of ground wheels are arranged at the bottoms of the support beams and the movable beam members for handling the support frame or assisting in the unfolding of the movable beams.

[0013] Lifting electric push rods are fixedly arranged inside both ends of the support beams. The output rods of the lifting electric push rods penetrate downward through the lower end faces of the support beams and are connected to the support plates.

[0014] When the support frame is transferred or the movable beams are unfolded, the lifting electric push rods drive the support plates to rise so that the ground wheels contact the ground or the backing plates.

[0015] After the movable beams are unfolded in place, the lifting electric push rods drive the support plates to descend until they抵 against the ground or the backing plates, causing the entire support frame to be lifted for positioning the support frame.

[0016] As a preferred embodiment, the cross-section of the support beam is in the shape of a "回" character, and a number of vertical support sleeves and a number of horizontal support sleeves are arranged at intervals thereon.

[0017] Limit column assemblies are arranged at both ends of the support beam. The limit column assemblies include limit column bases fixedly arranged on the ground, stud bolts fixedly arranged on the limit column bases, and limit tubes. The outer diameter of the limit tubes is adapted to the inner diameter of the vertical support sleeves.

[0018] The limit tubes pass through the vertical support sleeves at the ends of the support beam from top to bottom and are threadedly connected to the stud bolts to limit the horizontal displacement of the support beam and guide the lifting of the support frame at the same time.

[0019] As a preferred embodiment, the tool includes a shaft portion, a groove portion provided at the upper end of the shaft portion, a pull stud provided at the upper end of the groove portion, a cutter head portion provided at the lower end of the shaft portion, and a cutter portion provided at the lower end of the cutter head portion.

[0020] The diameter of the shaft portion is smaller than the diameters of the groove portion and the cutter head portion. Two flat portions are symmetrically arranged on both sides of the shaft portion, and magnetic attraction pieces made of metal are arranged on the flat portions.

[0021] In a preferred embodiment, a plurality of tool magazine slots are arranged on one side of the movable beam member facing the transverse beam. The tool magazine slots include a shaft clearance slot and a tool bottom clearance slot that are connected to each other. The shaft clearance slot corresponds to the shaft and the tool bottom clearance slot corresponds to the tool disc and the tool.

[0022] The sidewall of the shaft clearance groove abuts against the flat part of the shaft to guide the movement of the tool in the tool magazine groove and restrict the rotation of the tool, thereby assisting the tool spindle in changing tools.

[0023] The upper end of the cutter head abuts against the upper end of the bottom clearance groove of the cutter, and the lower end face of the slot abuts against the upper end face of the movable beam member, thereby restricting the vertical displacement of the cutter within the cutter magazine groove.

[0024] In a preferred embodiment, the movable beam component is provided with a plurality of electromagnet receiving slots, which are located on one side of the shaft clearance slot and are connected to the shaft clearance slot through a magnet through hole; a second cover plate is detachably provided on the shaft clearance slot.

[0025] An electromagnet mechanism is provided in the electromagnet receiving groove. The electromagnet mechanism includes an electromagnet and a magnet power supply assembly. The magnetic attraction part of the electromagnet passes through the magnet through hole and abuts against the magnetic attraction plate to restrict the sliding of the tool along the shaft clearance groove.

[0026] In a preferred embodiment, a long strip slide rod receiving groove and several baffle receiving grooves are transversely opened on the upper end surface of the movable beam member. The baffle receiving grooves are arranged on one side of the slide rod receiving groove and are connected to the slide rod receiving groove. The baffle receiving groove is located on the other side of the shaft clearance groove and is connected to the shaft clearance groove through a baffle through hole.

[0027] A long strip slide rod is slidably disposed in the slide rod receiving groove. Several transition plates are arranged on one side of the slide rod, and a transverse baffle is provided at the end of the transition plate.

[0028] The slide bar receiving groove and the plurality of baffle receiving grooves are detachably provided with a first cover plate to limit the vertical displacement of the slide bar;

[0029] When the slide bar slides, the baffle is driven to slide through the adapter plate, thereby allowing the baffle to enter the shaft clearance groove or move away from the shaft clearance groove through the baffle through hole;

[0030] The baffle enters the shaft clearance groove and abuts against the shaft to restrict the movement of the tool when the support frame is transported and moved.

[0031] In a preferred embodiment, the slide bar receiving groove has a vertical pin hole at one end near the other movable beam member, and the first cover plate makes way for the pin hole;

[0032] After the movable beam is deployed, component connecting pins are inserted into the two pin holes of the two movable beam components to fix the movable beam in the deployed state. The component connecting pin is in the shape of an inverted U, which includes two symmetrical pin vertical parts and a pin connecting part provided on the two pin vertical parts. The lower end of the pin vertical part is provided with a sloping structure.

[0033] A compression spring is provided in the end of the slide bar receiving groove away from the pin hole. The compression spring is connected to one end of the slide bar to drive the slide bar to slide and reset, so that the other end of the slide bar is above the pin hole. At this time, the baffle enters the shaft clearance groove.

[0034] After the connecting pin of the component is inserted, the inclined structure abuts against the end of the slide rod, thereby driving the slide rod to slide laterally to press the compression spring. At this time, the baffle moves away from the shaft clearance groove.

[0035] In a preferred embodiment, a first component hinge seat is provided on the outer side of one end of the movable beam component, and the first component hinge seats of the two movable beam components are engaged to be hinged by a pin.

[0036] A second component hinge seat is provided on the inner side of the other end of the movable beam component, and an end hinge seat is provided on the inner side of the end of the support beam corresponding to the second component hinge seat. The end hinge seat and the second component hinge seat are hinged together by a through pin.

[0037] The movable beam component is provided with a component lug at its end. The end of the support beam is provided with a lug through hole corresponding to the component lug. The inner side of the end of the support beam is provided with two end lugs facing each other vertically, corresponding to the lug through hole. After the movable beam is unfolded into place, the component lug enters the inner side of the end of the support beam through the lug through hole and corresponds to the end lug. The upper end surfaces of the component lug, the end lug, and the end of the support beam are provided with end pin through holes for inserting end connecting pins to fix the ends of the movable beam component and the support beam.

[0038] In addition, a method for grinding a pad in the aforementioned portable pad grinding device is provided, which includes the following steps:

[0039] S1. Move the support frame in its folded state to a preset position above the pad to be processed;

[0040] S2. Install limiting post assemblies at both ends of the support beam on one side to restrict the horizontal movement of the support beam;

[0041] S3. Use an overhead crane or hoist to drag the support beam on the other side to move it so that the movable beam can be unfolded into place. Then insert the pin assembly to fix the movable beam in the unfolded state. Use the lifting electric push rod set at the end of the support beam to control the support plate to descend, so as to support and limit the support frame.

[0042] S4. Use an overhead crane or hoist to hoist the transverse beam, which is equipped with the main spindle lifting mechanism and the tool spindle, onto the two support beams.

[0043] S5, connects electrical wiring harness and communication wiring harness;

[0044] S6. Start the equipment and input the processing program;

[0045] S7. Align and adjust the parameters of the tool spindle;

[0046] S8. The tool spindle completes automatic tool changing and machining of the pad surface according to the machining program;

[0047] S9. The tool spindle is reset;

[0048] S10, Stop the equipment.

[0049] The beneficial effects of adopting the above technical solution are as follows:

[0050] The grinding equipment of this application includes a tool spindle that can move longitudinally, laterally, and vertically. The tool spindle is equipped with grinding or milling tools. The rotating tools can automatically process the upper surface of the pad, thereby greatly reducing the manual processing steps of the pad, improving the efficiency of pre-embedded pads, and saving labor.

[0051] The support frame of this application is foldable, which makes it easy to move and transport after folding, and has a high space utilization rate. The movable beam of the support frame includes two movable beam components that are hinged to each other. The movable beam components are also hinged to the ends of the support beam. In addition, the ground wheels at the bottom of the support frame can be quickly unfolded in a preset position, increasing the assembly efficiency of the equipment.

[0052] The movable beam component of this application is equipped with a tool magazine slot, in which tools can be placed. In conjunction with the automatic tool changing mechanism of the tool spindle, various processing techniques can be achieved on the surface of the pad, increasing the applicable scenarios and functions of the equipment. Attached Figure Description

[0053] Figure 1 This is a structural schematic diagram of an embodiment.

[0054] Figure 2 yes Figure 1 A structural diagram from another angle.

[0055] Figure 3 This is a schematic diagram of the support frame structure of an embodiment.

[0056] Figure 4 This is a schematic diagram of the support beam and its internal structure in an embodiment.

[0057] Figure 5 This is a schematic diagram of the limiting post assembly in an embodiment.

[0058] Figure 6 This is a schematic diagram of the structure of the support beam end and the movable beam component in the embodiment.

[0059] Figure 7 yes Figure 6 A structural diagram from another angle.

[0060] Figure 8 This is a structural schematic diagram of the unfolding / folding process of the movable beam in the embodiment.

[0061] Figure 9 This is a schematic diagram of the tool magazine slot, slide bar, electromagnet assembly, and tool when the connecting pin is not inserted in the embodiment.

[0062] Figure 10 This is a schematic diagram of the tool magazine slot, slide bar, electromagnet assembly, and tool when the insertion component is connected to the pin in the embodiment.

[0063] Figure 11 yes Figure 9 A schematic diagram of the structure at point A in the middle.

[0064] Figure 12 yes Figure 10 A schematic diagram of the structure at point B.

[0065] Wherein: 100 Support beam; 101 Longitudinal slider; 102 Vertical support sleeve; 103 Horizontal support sleeve;

[0066] 200 Movable beam; 300 Transverse beam; 400 Spindle lifting mechanism; 401 Tool spindle;

[0067] 500 Cutting tool; 501 Brace rivet; 502 Slot section; 503 Shaft section; 503-1 Magnetic chuck; 504 Cutting head section; 505 Cutting tool section;

[0068] 600 Limit post assembly; 601 Limit post base; 602 Stud; 603 Limit tube; 604 Rotary handle;

[0069] 700 Ground wheel; 800 Light track section;

[0070] 1. Support beam end; 1-1 Lifting electric actuator; 1-2 Support plate; 1-3 End lug; 1-4 End hinge seat; 1-5 End pin through hole; 1-6 Lug through hole;

[0071] 2. Movable beam component; 2-1 First component hinge seat; 2-2 Second component hinge seat; 2-3 Component ear seat; 2-4 Tool magazine slot; 2-4-1 Tool bottom clearance slot; 2-4-2 Shaft clearance slot; 2-5 Pin hole; 2-6 Slide rod receiving slot; 2-7 Electromagnet receiving slot; 2-7-1 Magnet through hole; 2-8 Baffle receiving slot; 2-8-1 Baffle through hole;

[0072] 3. End connecting pin; 4. Component connecting pin; 4-1 Pin vertical part; 4-2 Pin connecting part; 4-3 Pin handle;

[0073] 5 First cover plate; 6 Second cover plate; 7 Slide rod; 7-1 Adapter plate; 7-2 Baffle; 8 Compression spring; 9 Electromagnet mechanism; 9-1 Electromagnet; 9-2 Magnet power supply assembly; 9-3 Magnetic suction part. Detailed Implementation

[0074] To make the objectives, technical solutions, and advantages of the present invention clearer, the invention will be described clearly and completely below in conjunction with specific embodiments.

[0075] like Figures 1 to 12 The portable pad grinding device shown is characterized in that it comprises:

[0076] like Figures 1 to 3 The support frame shown includes a longitudinally sliding transverse beam 300, a transversely sliding spindle lifting mechanism 400, a tool spindle 401 that is lifted and lowered on the spindle lifting mechanism 400, and a tool 500 that is detachably mounted on the tool spindle 401.

[0077] The supporting framework includes:

[0078] Two longitudinally opposite support beams 100, see details Figure 3 Two longitudinal sliders 101 are provided at both ends of the transverse beam 300, and the transverse beam 300 is slidably mounted on the two support beams 100 via the two longitudinal sliders 101.

[0079] The movable beam 200, which can be folded in two ways, is detailed in [link to details]. Figure 3 and Figure 8 The movable beam 200 includes two movable beam components 2, one end of each movable beam component 2 is hinged to the other end of the movable beam component 2 and is hinged to the end of the support beam 100.

[0080] See Figure 8 When the movable beam 200 is unfolded, the two movable beam components 2 are horizontally straight. The movable beam 200 is fixed by applying a pin assembly (i.e., the end connecting pin 3 and component connecting pin 4 mentioned below), thereby maintaining the relative distance between the two support beams 100. When the movable beam 200 is folded, the two movable beam components 2 are brought together so that the two support beams 100 are brought together, which is used for the transportation and relocation of the support frame.

[0081] See Figure 1 and Figure 2 In this embodiment, longitudinal movement motors are provided at both ends of the transverse beam 300 corresponding to the two longitudinal sliders 101. Gears are mounted on the output shafts of the longitudinal movement motors, meshing with the racks between the longitudinal sliders 101 and the support beam 100, thereby driving the transverse beam 300 to slide longitudinally. A transverse slider that can slide laterally is provided on the transverse beam 300. A spindle lifting mechanism 400 is fixed on the transverse slider. A transverse drive motor (located on one side of the tool spindle 401) is provided on the spindle lifting mechanism 400. A gear is mounted on the output rod of the transverse drive motor, meshing with the transverse rack on the transverse beam 300, thereby driving the spindle lifting mechanism 400 to move laterally.

[0082] See Figure 1 and Figure 2 The tool spindle 401 is fixed on the lifting platform of the spindle lifting mechanism 400. The lifting platform is lifted by a nut and screw mechanism, thereby lifting the tool spindle 401. A rotary drive motor is provided on the tool spindle 401 to drive the tool 500 to rotate. At the same time, a nail fixing and releasing mechanism corresponding to the pull stud 501 is provided inside the tool spindle 401 to realize the replacement of the tool 500 (the same principle as the tool replacement of existing CNC machine tools). A protrusion structure is provided on the lower end surface of the tool spindle 401 corresponding to the slot 502, which is used to cooperate with the slot 502 to make the tool 500 rotate synchronously with the tool spindle 401.

[0083] See Figure 1 , Figure 2 and Figure 3, in this embodiment, the longitudinal slider 101 is fixedly connected to the end of the transverse beam 300. A longitudinal slider guide rail is provided on the support beam 100 corresponding to the longitudinal slider 101. One end of the longitudinal slider guide rail is provided with an optical rail portion 800 (opposite to the chute at the bottom of the longitudinal slider 101, but not fitted, that is, it does not limit the up and down displacement of the longitudinal slider, and is used for hoisting the transverse beam 300). The optical rail portion 800 is located on the side away from the tool magazine slot 2-4 of the automatic tool changer. During on-site installation, the support frame is unfolded and installed in place. Then, the transverse beam 300 is hoisted by a crane or a hoist, and the longitudinal slider 101 is made opposite to the optical rail portion 800 of the longitudinal slider guide rail. Then, the longitudinal slider 101 is placed on the optical rail portion 800 of the longitudinal slider guide rail, and the transverse beam 300 is longitudinally dragged until the gear on the output end of the transverse drive motor abuts against and rotates meshes with the rack, so as to complete the hoisting of the transverse beam 300. Similarly, the transverse beam 300 can be removed by reverse operation for transportation and transfer. When transporting and transferring, only the transverse beam 300 (on which the spindle lifting mechanism and the tool spindle are installed) and the folded support frame need to be transported. The overall space is small, the structural integration degree is high, and the transfer is flexible and convenient.

[0084] See Figure 2 , a number of ground wheels 700 are arranged at the bottoms of the support beam 100 and the movable beam member 2, which are used for transporting the support frame or assisting in the unfolding of the movable beam 200. In this embodiment, the ground wheels 700 are McNally wheels or universal wheels.

[0085] See Figure 6 and Figure 7 , lifting electric push rods 1-1 are fixedly installed inside both ends of the support beam 100. The output rod of the lifting electric push rod 1-1 penetrates downward through the lower end face of the support beam 100 and is connected to a support plate 1-2. When the support frame is transported and transferred or the movable beam 200 is unfolded, the lifting electric push rod 1-1 drives the support plate 1-2 to rise, so that the ground wheels 700 contact the ground or the backing plate. After the movable beam 200 is unfolded in place, the lifting electric push rod 1-1 drives the support plate 1-2 to descend until it abuts against the ground or the backing plate, so as to lift the whole support frame for positioning the support frame. One surface of the support plate 1-2 contacting the ground is set as a tooth surface to increase the friction force with the ground or the backing plate, so that the support frame is set more stably at the preset position.

[0086] See Figure 4 , the cross-section of the support beam 100 is in the shape of a "hui" character, and a number of vertical support sleeves 102 and a number of horizontal support sleeves 103 are arranged at intervals thereon, which are used to increase the strength of the support beam 100.

[0087] See Figures 3 to 5Both ends of the support beam 100 are provided with limit post assemblies 600. Each limit post assembly 600 includes a limit post base 601 fixed to the ground, a stud 602 fixed to the limit post base 601, and a limit tube 603. The outer diameter of the limit tube 603 is adapted to the inner diameter of the vertical support sleeve 102. The limit tube 603 passes through the vertical support sleeve 102 at the end of the support beam 100 from top to bottom and is threadedly connected to the stud 602 to limit the horizontal displacement of the support beam 100 and guide the lifting and lowering of the support frame. In this embodiment, a rotating handle 604 is provided on the inner side of the upper end of the limit tube 603 to assist in rotating the limit tube 603 without interfering with the sliding of the longitudinal slider 101.

[0088] See Figure 9 and Figure 11 The cutting tool 500 includes a shaft portion 503, a slot portion 502 disposed at the upper end of the shaft portion 503, a pull stud 501 disposed at the upper end of the slot portion 502, a cutter head portion 504 disposed at the lower end of the shaft portion 503, and a cutting tool portion 505 disposed at the lower end of the cutter head portion 504. The diameter of the shaft portion 503 is smaller than the diameter of the slot portion 502 and the cutter head portion 504. Two flat portions are symmetrically arranged on both sides of the shaft portion 503, and a metal magnetic absorbing piece 503-1 is disposed on the flat portion.

[0089] See Figures 9 to 12 The movable beam member 2 has several tool magazine slots 2-4 arranged on one side facing the transverse beam 300. Each tool magazine slot 2-4 includes a connected shaft clearance slot 2-4-2 and a tool bottom clearance slot 2-4-1. The shaft clearance slot 2-4-2 corresponds to the shaft 503, and the tool bottom clearance slot 2-4-1 corresponds to the tool disc 504 and the tool 505. The sidewall of the shaft clearance slot 2-4-2 is flush with the shaft 503. The flat parts of the 3 abut against each other to guide the movement of the tool 500 within the tool magazine slot 2-4 and restrict the rotation of the tool 500, thereby assisting the tool spindle 401 in changing the tool 500; the upper end of the tool disc part 504 abuts against the upper end of the tool bottom clearance groove 2-4-1, and the lower end face of the slot part 502 abuts against the upper end face of the movable beam member 2, thereby restricting the vertical displacement of the tool 500 within the tool magazine slot 2-4.

[0090] See Figure 11The movable beam component 2 is provided with a plurality of electromagnet receiving slots 2-7, which are located on one side of the shaft clearance slot 2-4-2 and are connected to the shaft clearance slot 2-4-2 through a magnet through hole 2-7-1. A second cover plate 6 is detachably provided on the shaft clearance slot 2-4-2. An electromagnet mechanism 9 is provided in the electromagnet receiving slot 2-7. The electromagnet mechanism 9 includes an electromagnet 9-1 and a magnet power supply assembly 9-2. The magnetic attraction part 9-3 of the electromagnet 9-1 passes through the magnet through hole 2-7-1 and abuts against the magnetic attraction piece 503-1 to restrict the tool 500 from sliding along the shaft clearance slot 2-4-2, thereby preventing the tool 500 from slipping out of the tool magazine slot 2-4 due to the vibration of the entire equipment when machining on the pad surface. The magnet power supply assembly 9-2 in this embodiment includes a power module, a Bluetooth module, and a control module, which can be used to control the operation of the electromagnet 9-1 and monitor its operating status.

[0091] See Figure 9 , Figure 10 and Figure 11 The upper end surface of the movable beam component 2 is provided with a long strip slide rod receiving groove 2-6 and several baffle receiving grooves 2-8. The baffle receiving grooves 2-8 are arranged on one side of the slide rod receiving groove 2-6 and are connected to the slide rod receiving groove 2-6. The baffle receiving groove 2-8 is located on the other side of the shaft clearance groove 2-4-2 and is connected to the shaft clearance groove 2-4-2 through the baffle through hole 2-8-1.

[0092] See Figure 9 , Figure 10 and Figure 11 A long strip-shaped slide rod 7 is slidably disposed in the slide rod receiving groove 2-6. Several transition plates 7-1 are arranged on one side of the slide rod 7, and a transverse baffle 7-2 is provided at the end of the transition plate 7-1. A first cover plate 5 is detachably disposed on the slide rod receiving groove 2-6 and the several baffle receiving grooves 2-8 to limit the vertical displacement of the slide rod 7.

[0093] See Figure 9 , Figure 10 and Figure 11 When the slide rod 7 slides, the adapter plate 7-1 drives the baffle 7-2 to slide, thereby causing the baffle 7-2 to enter or move away from the shaft clearance groove 2-4-2 through the baffle through hole 2-8-1. The baffle 7-2 enters the shaft clearance groove 2-4-2 and abuts against the shaft 503 to restrict the movement of the tool 500 when the support frame is transported and moved.

[0094] The slide bar receiving groove 2-6 has a vertical pin hole 2-5 at one end near the other movable beam component 2, and the first cover plate 5 makes way for the pin hole 2-5;

[0095] See Figure 9 and Figure 10 After the movable beam 200 is unfolded into place, the component connecting pins 4 are inserted into the two pin holes 2-5 of the two movable beam components 2 to fix the movable beam 200 in the unfolded state. The component connecting pins 4 are inverted U-shaped and include two symmetrical pin vertical parts 4-1 and pin connecting parts 4-2 provided on the two pin vertical parts 4-1. The lower end of the pin vertical part 4-1 is provided with a sloping structure.

[0096] See Figure 11 A compression spring 8 is provided in the end of the slide rod receiving groove 2-6 away from the pin hole 2-5. The compression spring 8 is connected to one end of the slide rod 7 to drive the slide rod 7 to slide and reset, so that the other end of the slide rod 7 is above the pin hole 2-5. At this time, the baffle 7-2 enters the shaft clearance groove 2-4-2.

[0097] See Figure 12 After the component connecting pin 4 is inserted, the inclined structure abuts against the end of the slide rod 7. The end of the slide rod 7 is provided with a rounded or chamfered structure corresponding to the inclined structure to facilitate the insertion of the vertical part 4-1 of the pin, thereby driving the slide rod 7 to slide laterally to press the compression spring 8. At this time, the baffle 7-2 moves away from the shaft clearance groove 2-4-2. In this embodiment, the component connecting pin 4 is used to drive the slide rod 7 to slide, so that when the movable beam 200 is fixed in the unfolded state, the tool magazine groove 2-4 can be opened so that the tool spindle 401 can change tools normally and automatically. After the component connecting pin 4 is removed, the slide rod 7 returns to its original position. At this time, the baffle 7-2 closes the tool magazine groove 2-4, which can prevent the tool 500 from falling out of the tool magazine groove 2-4 after being forcefully broken free of the magnetic attraction during transfer and transportation.

[0098] See details Figure 8 One end of the movable beam component 2 is provided with a first component hinge seat 2-1. The first component hinge seats 2-1 of the two movable beam components 2 are fitted together to be hinged by a pin. See Figures 6 to 8The two first component hinge seats 2-1 of the movable beam 200 are vertically offset and opposite to each other, used for hinged connection by a pin. A second component hinge seat 2-2 is provided on the inner side of the other end of the movable beam component 2. An end hinge seat 1-4 is provided on the inner side of the end of the support beam 100 corresponding to the second component hinge seat 2-2. The end hinge seat 1-4 and the second component hinge seat 2-2 are hinged by a pin. A component lug seat 2-3 is provided at the end of the movable beam component 2. An lug seat through hole 1-6 is provided on the inner side of the end of the support beam 100 corresponding to the component lug seat 2-3. Two end lugs 1-3 are arranged opposite each other in the seat through hole 1-6. After the movable beam 200 is unfolded into place, the component lugs 2-3 enter the inner side of the end of the support beam 100 through the lug through hole 1-6 and correspond to the end lugs 1-3. The upper end surfaces of the component lugs 2-3, the end lugs 1-3 and the end of the support beam 100 are provided with end pin through holes 1-5 for inserting end connecting pins 3 to fix the end of the movable beam component 2 and the end of the support beam 100.

[0099] The pad grinding method of the portable pad grinding device in this embodiment includes the following steps:

[0100] S1. Move the support frame in its folded state to a preset position above the pad to be processed;

[0101] S2. Limiting post assemblies 600 are installed at both ends of the support beam 100 on one side to restrict the horizontal movement of the support beam 100.

[0102] S3. Use an overhead crane or hoist to drag the support beam 100 on the other side to move so that the movable beam 200 is unfolded into place. Then insert the pin assembly to fix the movable beam 200 in the unfolded state. Use the lifting electric push rod 1-1 set at the end of the support beam 100 to control the support plate 1-2 to descend so as to support and limit the support frame.

[0103] S4. Use an overhead crane or hoist to hoist the transverse beam 300, which is equipped with the spindle lifting mechanism 400 and the tool spindle 401, onto the two support beams 100.

[0104] S5, connects electrical wiring harness and communication wiring harness;

[0105] S6. Start the equipment and input the processing program;

[0106] S7. Align and adjust the parameters of the tool spindle 401;

[0107] S8. The tool spindle 401 completes automatic tool changing and machining of the pad surface according to the machining program;

[0108] S9. The tool spindle 401 is reset;

[0109] S10, Stop the equipment.

[0110] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A portable pad grinding device, characterized in that, It includes: The system includes a support frame, a transverse beam (300) that slides longitudinally on the support frame, a spindle lifting mechanism (400) that slides laterally on the transverse beam (300), a tool spindle (401) that is lifted and lowered on the spindle lifting mechanism (400), and a tool (500) that is detachably mounted on the tool spindle (401). The tool (500) includes a shaft portion (503), a slot portion (502) located at the upper end of the shaft portion (503), a pull stud (501) located at the upper end of the slot portion (502), a cutter head portion (504) located at the lower end of the shaft portion (503), and a cutting portion (505) located at the lower end of the cutter head portion (504). The supporting framework includes: Two longitudinally opposite support beams (100) are provided, and two longitudinal sliders (101) are provided at both ends of the transverse beam (300). The transverse beam (300) is slidably mounted on the two support beams (100) through the two longitudinal sliders (101). Two foldable movable beams (200) are provided, each movable beam (200) comprising two movable beam members (2), one end of each movable beam member (2) being hinged to the other end of the movable beam member (2) being hinged to the end of the support beam (100). After the movable beam (200) is unfolded, the two movable beam components (2) are horizontally straight. The movable beam (200) is fixed by applying a pin assembly, thereby maintaining the relative distance between the two support beams (100). After the movable beam (200) is folded, the two movable beam components (2) are brought together so that the two support beams (100) are brought together, which is used for the transportation and relocation of the support frame. The movable beam member (2) has several tool magazine slots (2-4) arranged on one side facing the transverse beam (300). The tool magazine slots (2-4) include a shaft clearance slot (2-4-2) and a tool bottom clearance slot (2-4-1) that are connected. The shaft clearance slot (2-4-2) corresponds to the shaft (503), and the tool bottom clearance slot (2-4-1) corresponds to the tool disc (504) and the tool (505). The sidewall of the shaft clearance groove (2-4-2) abuts against the flat part of the shaft (503) to guide the movement of the tool (500) in the tool magazine groove (2-4) and restrict the rotation of the tool (500), thereby assisting the tool spindle (401) in changing the tool (500). The upper end of the cutter head (504) abuts against the upper end of the bottom clearance groove (2-4-1) of the cutter, and the lower end face of the slot (502) abuts against the upper end face of the movable beam member (2), thereby restricting the vertical displacement of the cutter (500) in the cutter magazine groove (2-4). A plurality of electromagnet accommodation grooves (2-7) are arranged on the movable beam member (2). The electromagnet accommodation grooves (2-7) are located on one side of the shaft portion avoidance groove (2-4-2) and are connected to the shaft portion avoidance groove (2-4-2) through magnet through holes (2-7-1). A second cover plate (6) is detachably arranged on the shaft portion avoidance groove (2-4-2). An electromagnet mechanism (9) is arranged in the electromagnet accommodation groove (2-7). The electromagnet mechanism (9) includes an electromagnet (9-1) and a magnet power supply component (9-2). The magnetic attraction portion (9-3) of the electromagnet (9-1) passes through the magnet through hole (2-7-1) and abuts against the magnetic attraction sheets (503-1) on both sides of the shaft portion (503) to limit the sliding of the tool (500) along the shaft portion avoidance groove (2-4-2).

2. The portable backing plate grinding device according to claim 1, wherein A plurality of ground wheels (700) are arranged at the bottoms of the support beam (100) and the movable beam member (2) for carrying the support frame or assisting in the unfolding of the movable beam (200). Lifting electric push rods (1-1) are fixedly arranged inside both ends of the support beam (100). The output rods of the lifting electric push rods (1-1) penetrate downward through the lower end surface of the support beam (100) and are connected to a support plate (1-2). When the support frame is transferred or the movable beam (200) is unfolded, the lifting electric push rod (1-1) drives the support plate (1-2) to rise so that the ground wheels (700) contact the ground or the backing plate. After the movable beam (200) is unfolded in place, the lifting electric push rod (1-1) drives the support plate (1-2) to descend until it abuts against the ground or the backing plate, causing the entire support frame to be lifted for positioning the support frame.

3. The portable pad grinding device according to claim 2, characterized in that, The cross-section of the support beam (100) is in a "hui" shape, and a plurality of vertical support sleeves (102) and a plurality of horizontal support sleeves (103) are arranged at intervals thereon. Limit column assemblies (600) are arranged at both ends of the support beam (100). The limit column assemblies (600) include a limit column base (601) fixed on the ground, a stud (602) fixed on the limit column base (601), and a limit tube (603). The outer diameter of the limit tube (603) is adapted to the inner diameter of the vertical support sleeve (102). The limit tube (603) passes through the vertical support sleeve (102) at the end of the support beam (100) from top to bottom and is threadedly connected to the stud (602) to limit the horizontal displacement of the support beam (100) and guide the lifting of the support frame at the same time.

4. The portable backing plate grinding device according to claim 1, wherein The diameter of the shaft portion (503) is smaller than the diameters of the card slot portion (502) and the cutter head portion (504). Two flat portions are symmetrically arranged on both sides of the shaft portion (503), and magnetic attraction sheets (503-1) made of a metal material are arranged on the flat portions.

5. The portable pad grinding device according to claim 1, characterized in that, The upper surface of the movable beam component (2) is provided with a long strip slide rod receiving groove (2-6) and several baffle receiving grooves (2-8). The baffle receiving grooves (2-8) are arranged on one side of the slide rod receiving groove (2-6) and are connected to the slide rod receiving groove (2-6). The baffle receiving grooves (2-8) are located on the other side of the shaft clearance groove (2-4-2) and are connected to the shaft clearance groove (2-4-2) through the baffle through hole (2-8-1). A long strip-shaped slide rod (7) is slidably arranged in the slide rod receiving groove (2-6). Several transition plates (7-1) are arranged on one side of the slide rod (7). A transverse baffle (7-2) is provided at the end of the transition plate (7-1). The slide bar receiving groove (2-6) and several of the baffle receiving grooves (2-8) are detachably provided with a first cover plate (5) to limit the vertical displacement of the slide bar (7); When the slide bar (7) slides, the baffle (7-2) is driven to slide through the adapter plate (7-1), thereby allowing the baffle (7-2) to enter the shaft clearance groove (2-4-2) or move away from the shaft clearance groove (2-4-2) through the baffle through hole (2-8-1). The baffle (7-2) enters the shaft clearance groove (2-4-2) and abuts against the shaft (503) to restrict the movement of the tool (500) when the support frame is transported and moved.

6. The portable pad grinding device according to claim 5, characterized in that, The slide bar receiving groove (2-6) has a vertical pin hole (2-5) at one end near the other movable beam member (2), and the first cover plate (5) makes way for the pin hole (2-5). After the movable beam (200) is unfolded into place, the component connecting pin (4) is inserted into the two pin holes (2-5) of the two movable beam components (2) to fix the movable beam (200) in the unfolded state. The component connecting pin (4) is in the shape of an inverted U. It includes two symmetrical pin vertical parts (4-1) and pin connecting parts (4-2) provided on the two pin vertical parts (4-1). The lower end of the pin vertical part (4-1) is provided with a slope structure. A compression spring (8) is provided in the end of the slide rod receiving groove (2-6) away from the pin hole (2-5). The compression spring (8) is connected to one end of the slide rod (7) to drive the slide rod (7) to slide and reset, so that the other end of the slide rod (7) is above the pin hole (2-5). At this time, the baffle (7-2) enters the shaft clearance groove (2-4-2). After the connecting pin (4) of the component is inserted, the inclined structure abuts against the end of the slide bar (7), thereby driving the slide bar (7) to slide laterally to press the compression spring (8). At this time, the baffle (7-2) moves away from the shaft clearance groove (2-4-2).

7. The portable pad grinding device according to claim 1, characterized in that, A first component hinge seat (2-1) is provided on the outer side of one end of the movable beam component (2), and the first component hinge seats (2-1) of the two movable beam components (2) are fitted together to be hinged by a pin. The other end of the movable beam component (2) is provided with a second component hinge seat (2-2), and the end of the support beam (100) is provided with an end hinge seat (1-4) corresponding to the second component hinge seat (2-2). The end hinge seat (1-4) and the second component hinge seat (2-2) are hinged by a through pin. The movable beam component (2) is provided with a component ear seat (2-3) at its end. The end of the support beam (100) is provided with an ear seat through hole (1-6) corresponding to the component ear seat (2-3). The inner side of the end of the support beam (100) is provided with two end ear seats (1-3) facing each other vertically and vertically corresponding to the ear seat through hole (1-6). After the movable beam (200) is unfolded into place, the component ear seat (2-3) enters the inner side of the end of the support beam (100) through the ear seat through hole (1-6) and corresponds to the end ear seat (1-3). The upper end surfaces of the component ear seat (2-3), the end ear seat (1-3) and the end of the support beam (100) are provided with end pin through holes (1-5) to pass through end connecting pins (3) to fix the ends of the movable beam component (2) and the support beam (100).

8. A method for grinding a pad in a portable pad grinding device as described in claim 1, characterized in that, It includes the following steps: S1. Move the support frame in its folded state to a preset position above the pad to be processed; S2. Limiting post assemblies (600) are installed at both ends of the support beam (100) on one side to restrict the horizontal movement of the support beam (100); S3. Use an overhead crane or hoist to drag the support beam (100) on the other side to move so that the movable beam (200) unfolds into place. Then insert the pin assembly to fix the movable beam (200) in the unfolded state. Use the lifting electric push rod (1-1) set at the end of the support beam (100) to control the support plate (1-2) to descend so as to support and limit the support frame. S4. Using an overhead crane or hoist, the transverse beam (300) on which the main spindle lifting mechanism (400) and the tool spindle (401) are installed is hoisted onto the two support beams (100); S5, connects electrical wiring harness and communication wiring harness; S6. Start the equipment and input the processing program; S7. Align and adjust the parameters of the tool spindle (401); S8. The tool spindle (401) completes automatic tool changing and machining of the pad surface according to the machining program; S9. The tool spindle (401) is reset; S10, Stop the equipment.

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