Automatic floor height milling device

Abstract

The invention provides an automatic floor height milling device which comprises a base table with a working face and at least one height milling assembly arranged on the working face in a displaceable mode, and height machining treatment is carried out on a target object through the height milling assembly so as to accelerate the production time course, improve the production efficiency and reduce the labor cost.

Description

Technical Field

[0001] The present application relates to a tool for processing burrs, in particular to an automatic floor milling height device. Background Art

[0002] Currently, raised floor devices are widely used in anti-static computer rooms or clean rooms. Among them, the existing raised floors made of aluminum alloy die-casting need to go through five main processes: mold opening, melting aluminum, die-casting, forming, and trimming. Due to the forming process, there will be multiple burrs on the surface and bottom of the raised floor. During the installation process, on the one hand, these burrs will prevent the raised floors from fitting tightly together and also prevent them from fitting with the platform frame. On the other hand, it is not conducive to the installation by workers and there are certain safety concerns for the workers.

[0003] However, in the existing method, manual methods must be used to remove the burrs from the four feet of the formed raised floor, which not only has low production efficiency, but also wastes a large amount of manpower and is time-consuming and laborious for each processing.

[0004] Therefore, how to overcome the above-mentioned various deficiencies of the prior art has actually become an urgent problem to be solved in the current industry. Summary of the Invention

[0005] In view of the deficiencies of the above-mentioned prior art, the present application provides an automatic floor milling height device, including: a base platform having a working surface; a positioning structure disposed parallel to the working surface to carry an object and restrict the displacement of the object. Wherein, the object has opposite first and second surfaces, side surfaces adjacent to the first and second surfaces, and a flange protruding from the side surface, and four feet are provided at four corners of the second surface; a fixing part correspondingly disposed on opposite sides of the positioning structure to press the object onto the positioning structure; a milling height assembly displaceably disposed on the working surface of the base platform and respectively disposed on opposite sides of the positioning structure to simultaneously mill the four feet of the object to process the end faces of the feet of the object, and the milling height assembly includes a plurality of milling cutter tools, a drive group for actuating the milling cutter tools, a support structure displaceably disposed on the base platform, and a plurality of load-bearing structures displaceably disposed on the support structure. Wherein, the plurality of milling cutter tools and the drive group are disposed on the support structure on the base platform through the plurality of load-bearing structures, and the milling cutter tools and the drive group are respectively disposed on opposite sides of the load-bearing structure, and the drive group is sleeved on a connecting member of the milling cutter tool through a linkage member to perform linkage. Wherein, the milling cutter tool includes a box body having an accommodation space, a main shaft penetrating through the accommodation space of the box body, a first bearing group and a second bearing group disposed in the box body and sleeved on the main shaft, and a tool structure disposed at one end of the main shaft; and a driving structure for driving the support structure to displace to drive the milling height assembly to move linearly to perform the milling height processing of the object.

[0006] In the above-mentioned automatic floor milling height device, the driving structure includes a ball screw, a bearing engaging the ball screw, and a nut engaging the ball screw. The bearing is disposed on a bearing seat fixed to the base platform, the nut is fixed to the bottom of the support structure, and a power group is disposed on the base platform, which is fixedly disposed on the base platform through a speed reducer, and the power group drives the speed reducer to rotate the ball screw.

[0007] In the above-mentioned automatic floor milling height device, it further includes a plurality of sliders disposed at the bottom of the support structure, and a plurality of slide rails disposed on the base platform and correspondingly engaging the sliders, so that the sliders move linearly along the slide rails, enabling the driving structure to simultaneously drive the support structure and the two load-bearing structures thereon, as well as the drive group and the milling cutter tool fixed to the load-bearing structure, to displace a certain distance relative to the base platform.

[0008] In the aforementioned floor automatic milling height device, an adjustment structure is configured on the support structure to lift and lower the bearing structure, so that the milling tool is displaced to the required height position. For example, a guiding structure is further included, which includes a slide rail and a slide block engaged with the slide rail. The slide rail is fixed on the support structure, and the slide block is fixed on the bearing structure, so that the bearing structure is arranged on the support structure through the guiding structure. When the adjustment structure is actuated, the bearing structure and the milling tool thereon can be driven to lift and lower relative to the support structure. Alternatively, the adjustment structure includes a rotating rod and a turntable rotated by the rotating rod. Or, the adjustment structure rotates a speed reducer to drive a screw rod to rotate, so that the screw rod drives a nut fixed on the bearing structure to move up and down, causing the screw rod to drive the bearing structure to lift and lower, and simultaneously displacing the milling tool to the required height position.

[0009] In the aforementioned floor automatic milling height device, a limit baffle is provided on the support structure, and a stopper against the limit baffle is provided on the base table, so as to control the displacement distance of the support structure by controlling the position of the limit baffle through the stopper, and a stop portion is arranged on the outer side of the positioning structure to block the side of the target object.

[0010] In the aforementioned floor automatic milling height device, the floor automatic milling height device is provided with two independent support structures and four independent bearing structures in total. One independent support structure and two independent bearing structures are set as a unit, and two units are set in total, so that the two units are respectively arranged in parallel on opposite sides of the positioning structure. The two independent bearing structures in a single unit are respectively fixed on opposite sides of an independent support structure, so that each milling tool on the bearing structure and the support structure is simultaneously driven by the same power group. The bearing structure is an L-shaped frame body, which is symmetrically arranged on the left and right sides of the support structure. The bearing structure is respectively provided with a drive group and the milling tool at its opposite ends, and the bearing structure is provided with the milling tool at the end side facing the positioning structure, so as to actuate the milling tool through the drive group.

[0011] In the aforementioned floor automatic milling height device, both the first bearing group and the second bearing group include two ball bearings and a bearing spacer ring arranged between the two ball bearings. The ball bearings of the first bearing group are deep groove ball bearings, while the ball bearings of the second bearing group are angular contact ball bearings.

[0012] In the aforementioned floor automatic milling height device, the tool structure includes a tool body, a tool joint seat and its tool handle. The tool handle is in a conical structure, and the tool body is joined to one end of the main shaft through the tool joint seat and its tool handle.

[0013] In the aforementioned floor automatic milling height device, the milling cutter tool further includes a fixed seat having a conical accommodating space, and the fixed seat is formed at one end of the main shaft, and the tool shank is inserted through the conical accommodating space so that the tool structure is arranged at one end of the main shaft through the fixed seat, thereby laminating the tool body, the tool joint seat and the fixed seat, and then combining them into one body.

[0014] In the aforementioned floor automatic milling height device, the tool structure further includes a first bolt and a plurality of second bolts. The first bolt sequentially passes through the tool body, the tool joint seat, the fixed seat, and the connecting member on the other end of the main shaft along the axial direction of the main shaft, and two nuts are used at both ends of the main shaft to lock the tool structure to the main shaft, and the connecting member is locked to the main shaft with another nut. The plurality of second bolts are arranged around the first bolt to lock the tool body and the tool joint seat to the fixed seat.

[0015] In the aforementioned floor automatic milling height device, a groove is formed on the surface of the tool joint seat, and a tenon is formed on the fixed seat. After the tool joint seat is arranged on the fixed seat, the tenon is clamped in the groove to fix the fixed seat and the tool joint seat.

[0016] As can be seen from the above, the floor automatic milling height device of the present application mainly processes the pedestal height of the raised floor through the milling height assembly to accelerate the production schedule and improve production efficiency, while reducing labor costs. Brief Description of the Drawings

[0017] Figure 1 Is a three-dimensional schematic diagram of the floor automatic milling height device of the present application applied to a production line.

[0018] Figure 1A Is a three-dimensional schematic diagram of the first embodiment of the floor automatic milling height device of the present application.

[0019] Figure 1B Is Figure 1A A partial exploded schematic diagram of

[0020] Figure 1C Is Figure 1A A top view schematic diagram of

[0021] Figure 1D Is Figure 1A A left view schematic diagram of

[0022] Figure 2A Is a top view schematic diagram of the second embodiment of the floor automatic milling height device of the present application.

[0023] Figure 2B Is a left view schematic diagram of the second embodiment of the floor automatic milling height device of the present application.

[0024] Figure 2C Front view schematic diagram of the second embodiment of the floor automatic milling height device of the present application.

[0025] Figure 3A is Figure 1A Stereo schematic diagram of the floor automatic milling height device in use.

[0026] Figure 3A ’ is Figure 3A Left view schematic diagram.

[0027] Figure 3B is Figure 1A Stereo schematic diagram of the floor automatic milling height device during processing.

[0028] Figure 4A Top-down stereo schematic diagram of the object to be processed by the floor automatic milling height device of the present application.

[0029] Figure 4B is Figure 4A Bottom-up stereo schematic diagram.

[0030] Figure 4C is Figure 4A Side view plane schematic diagram.

[0031] Figure 5 Cross-sectional schematic diagram of the milling tool.

[0032] Explanation of main component symbols

[0033] 1 Transportation device

[0034] 2, 2’ Floor automatic milling height device

[0035] 2a Milling height component

[0036] 20 Milling tool

[0037] 20a Body

[0038] 200 Milling cutter

[0039] 21 Base

[0040] 21a Combination of guide rail and slide

[0041] 210 Slide block

[0042] 211 Slide rail

[0043] 21c Side

[0044] 22 Positioning structure

[0045] 22a Frame

[0046] 220 Fixed part

[0047] 220’ Stopper

[0048] 23 Support structure

[0049] 23a Limit baffle

[0050] 23b Limiter

[0051] 24 Bearing structure

[0052] 24’ Guide structure

[0053] 240’ Slide rail

[0054] 241’ Slide block

[0055] 25 Adjustment structure

[0056] 250 Rotating rod

[0057] 251 Turntable

[0058] 25’ Reducer

[0059] 250’ Screw rod

[0060] 251’ Nut

[0061] 26 Drive group

[0062] 26a Linkage part

[0063] 27 Driving structure

[0064] 27a Ball screw

[0065] 27b Nut

[0066] 27c Bearing

[0067] 270 Bearing block

[0068] 28 Power group

[0069] 280 Reducer

[0070] 3 Floor automatic edge milling device

[0071] 4 Turning device

[0072] 5 Hole forming device

[0073] 60 Box body

[0074] 60a First side

[0075] 60b Second side

[0076] 601 First cover

[0077] 602 Second cover

[0078] 602a Oil hole

[0079] 61 Main shaft

[0080] 61a Milling cutter end

[0081] 61b Linkage end

[0082] 610 Fixed seat

[0083] 611, 612, 613 Nuts

[0084] 62 First bearing set

[0085] 621 First ball bearing

[0086] 621a First bearing inner ring

[0087] 621b First bearing outer ring

[0088] 621c First balls

[0089] 622 First bearing spacer ring

[0090] 622a First inner spacer ring

[0091] 622b First outer spacer ring

[0092] 63 Second bearing set

[0093] 63a First end face

[0094] 63b Second end face

[0095] 631 Second ball bearing

[0096] 631a Second bearing inner ring

[0097] 631b Second bearing outer ring

[0098] 631c Second balls

[0099] 632 Second bearing spacer ring

[0100] 632a Second inner spacer ring

[0101] 632b Second outer spacer ring

[0102] 64 Main shaft column

[0103] 65 Tool structure

[0104] 651 Tool body

[0105] 652 Tool joint seat

[0106] 653 Tool shank

[0107] 654 First bolt

[0108] 655 Second bolt

[0109] 66 Connecting piece

[0110] 71 Tenon

[0111] 72 Radial locking nut

[0112] 73 End face pressing ring

[0113] 74 Washer

[0114] 75 Compression ring

[0115] 9 Object

[0116] 9a First surface

[0117] 9b Second surface

[0118] 9c Side face

[0119] 9d End face

[0120] 90 Footrest

[0121] 91 Flange

[0122] d Width

[0123] h Height difference

[0124] T Groove

[0125] S Working surface

[0126] S’ Accommodation space

[0127] S1 Conical accommodation space

[0128] X, Y, Y1, Z Arrow directions. Specific embodiments

[0129] The following specific embodiments illustrate the implementation manners of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification.

[0130] It should be noted that the structures, proportions, sizes, etc. shown in the attached drawings of this specification are only used to cooperate with the content disclosed in the specification for the understanding and reading of those skilled in the art, and are not used to limit the conditions for the implementation of this application. Therefore, they do not have any technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that this application can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in this application. At the same time, the terms such as "upper", "lower", "front", "back", "left", "right", and "one" cited in this specification are only for the convenience of clear description and are not used to limit the scope of implementation of this application. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope of implementation of this application.

[0131] Figure 1 This is a three-dimensional schematic diagram of the floor automatic milling height device 2 of this application applicable to the production line. As Figure 1 shown, this production line further includes: a transportation device 1, a floor automatic milling edge device 3, a flipping device 4, and a hole forming device 5.

[0132] In this embodiment, the transportation direction of the transportation device 1 according to the pre-treatment and post-treatment of the production line is defined as the left and right directions (such as the arrow direction Y), and the direction perpendicular to this transportation direction is defined as the front and back directions (such as the arrow direction X), and the height direction along each device is defined as the up and down directions (such as the arrow direction Z). It should be understood that this orientation is used to illustrate the configuration of this embodiment and is not particularly limited.

[0133] Furthermore, the transportation device 1 is used to transport (such as clamp) the target object 9 to the processing positions required on the production line. Therefore, the transportation device 1 is arranged around the upper part of the floor automatic milling height device 2, the floor automatic milling edge device 3, the flipping device 4, and the hole forming device 5 and other devices for placing the target object 9, so as to facilitate placing the target object 9 on the floor automatic milling height device 2, the floor automatic milling edge device 3, the flipping device 4, and / or the hole forming device 5.

[0134] In addition, the target object 9 is an elevated floor, such as Figure 4A 、 Figure 4B and Figure 4CAs shown, it has opposite first surface 9a (such as the floor surface), second surface 9b (such as the bottom side end), and side surface 9c adjacent to the first and second surfaces 9a, 9b. For example, the object 9 is generally in the shape of a rectangular body (such as a square plate). The bottom of the object 9 (such as the side of the second surface 9b, which is the bottom of the raised floor) is honeycomb-shaped, and pedestals 90 are formed at the four corners of the second surface 9b of the object 9. Openings are provided in the four pedestals 90, and screws (not shown in the figure) are used to fix the four pedestals 90 to the support brackets (not shown in the figure) for the raised floor respectively. Specifically, the end face 9d of the pedestal 90 slightly protrudes (such as Figure 4C the height difference h shown) from the second surface 9b of the object 9, and a flange 91 protruding from the side surface 9c is formed at the edge of the first surface 9a. Since the object 9 in this embodiment is a raised floor, the object 9 will be referred to as a raised floor hereinafter.

[0135] Figures 1A to 1D This is a schematic diagram of the first embodiment of the floor automatic milling height device 2 of the present application. In this embodiment, the floor automatic milling height device 2 is arranged at the very front of the processing flow of the entire production line, and it operates in cooperation with the transportation device 1 to process the end face 9d of the pedestal 90. For example, to remove the burrs on the end faces 9d of the four pedestals 90 of the raised floor, so as to process the raised floor to the required height dimension.

[0136] As Figures 1A to 1D shown, the floor automatic milling height device 2 includes a base 21, a positioning structure 22 arranged in parallel on the base 21, and at least one milling height component 2a arranged on the base 21 and around the positioning structure 22, so that the milling height component 2a corresponds to the positioning structure 22 and moves up and down relative to the positioning structure 22 to adjust the milling height processing amount of the object 9 (raised floor). After the milling height processing amount is set, it moves horizontally to process the pedestal 90 of the object 9, and after the milling height processing of the object 9 is completed, the transportation device 1 is used to move the object 9 away from the positioning structure 22.

[0137] The base 21 is a machine tool workbench, which is generally in the shape of a rectangular body (or a cuboid), and its working surface S is also a rectangular (or rectangular) plane.

[0138] In this embodiment, the base 21 can be configured with electromechanical components required for the production line, such as motors, wires or other related units, without special limitation.

[0139] The positioning structure 22 is arranged in the middle of the working surface S of the base 21 to position and carry the object 9 as Figure 1 shown.

[0140] In this embodiment, the positioning structure 22 is a frame body, such as two straight bar-shaped frames 22a arranged in parallel or a square frame as shown in Figure 2A . The milling height assembly 2a is disposed on opposite sides (such as the front and rear sides) of these frames 22a. At least one fixing portion 220 (such as a corner cylinder fixture) can be disposed on the outer sides of opposite sides of the positioning structure 22 as required. During use, in this embodiment, the fixing portion 220 uses a corner cylinder fixture to fix the raised floor to the base 21, and at least one corner cylinder fixture is respectively disposed on one side of each of these frames 22a to limit the displacement of the raised floor and prevent it from deviating from the positioning structure 22 during the milling operation.

[0141] Furthermore, when the target object 9 is to be placed manually, at least one stop portion 220' can be disposed on the outer side of the positioning structure 22 (such as the other side perpendicular to the side where the corner cylinder fixture is disposed on the positioning structure 22). The stop portion 220' blocks the side surface 9c of the raised floor to facilitate the operator to push and place the target object 9 (such as in the direction of arrow Y1) onto the positioning structure 22. It should be understood that the transport device 1 can also pick up the target object 9 to be processed from the feeding place (not shown in the figure) and place it at the processing position on the positioning structure 22.

[0142] The milling height assemblies 2a are symmetrically disposed on opposite sides (such as the front and rear sides) of the positioning structure 22. Each milling height assembly 2a includes a plurality of milling cutter tools 20, a plurality of support structures 23 displaceably disposed on the base 21, and a bearing structure 24 disposed on both sides of the support structure 23 and supporting these milling cutter tools 20. By displacing the support structure 23 relative to the base 21, the bearing structure 24 and the milling cutter tools 20 thereon can be moved closer to or farther away from the positioning structure 22.

[0143] In this embodiment, the floor automatic milling height device 2 is provided with two independent support structures 23 and four independent bearing structures 24 in total. One independent support structure 23 and two independent bearing structures 24 form a unit (a total of two units), so that the two units are respectively arranged in parallel on opposite sides of the positioning structure 22, and the two independent bearing structures 24 in a single unit are respectively fixed on opposite sides of an independent support structure 23, so that the four milling cutter tools 20 on each bearing structure 24 can be simultaneously driven by the same power group 28, and the two power groups 28 drive the support structures 23 at the same time to quickly process the four feet 90 of the target object 9 to the required height. Among them, a milling cutter 200 is disposed at the bottom end of the body 20a of the milling cutter tool 20. It should be understood that there are various types of milling cutters 200 and there is no special limitation.

[0144] Furthermore, the support structure 23 is a base body, which is disposed on the working surface S of the base 21 in a displaceable manner, and a driving structure 27 for driving the displacement of the support structure 23 and a power unit 28 for actuating the driving structure 27 are provided on the working surface S of the base 21. For example, the power unit 28 is a motor, which is fixedly arranged on the side surface 21c of the base 21 through a speed reducer 280, and the driving structure 27 includes a ball screw 27a, a bearing 27c (as Figure 2A shown) and a nut 27b. Among them, the bearing is arranged on a bearing seat 270 (which is fixedly arranged on the side surface 21c of the base 21), and one end of the ball screw 27a is engaged with the bearing of the bearing seat 270, and the nut 27b is fixed to the bottom of the support structure 23. When the power unit 28 drives the speed reducer 280 to rotate the ball screw 27a, the ball screw 27a can drive the support structure 23 on the nut 27b to perform a linear reciprocating motion for a certain distance when rotating, where the distance is greater than or equal to the width d of the footrest 90 (as Figure 4C shown), so that the ball screw 27a drives the support structure 23 to approach or move away from the positioning structure 22, and at least one limit baffle 23a can be arranged on the side surface of the support structure 23, and at least one limiter 23b can be arranged on the first base 21, so as to control the machining stroke of the milling tool 20 by the position where the limit baffle 23a contacts the limiter 23b. Specifically, a combination 21a of a guide rail and a slide block is provided with a plurality of slide blocks 210 at the bottom of the support structure 23 as slide blocks, and a plurality of slide rails 211 corresponding to and engaging the slide blocks 210 are arranged on the base 21 as guide rails, so that the slide blocks 210 move linearly along the slide rails 211, so that the driving structure 27 can drive the support structure 23 and the two bearing structures 24 thereon and the drive group 26 and the milling tool 20 fixed on the bearing structure 24 to displace relative to the base 21 by a certain distance (greater than or equal to the width d of the footrest 90) at the same time, so as to machine the end surfaces 9d of the four footrests 90 and achieve the required height of the raised floor. Driving the support structure 23 can also be replaced by a hydraulic cylinder or a pneumatic cylinder.

[0145] In addition, the bearing structure 24 is an L-shaped frame body, which is symmetrically arranged on the left and right sides of the support structure 23. The bearing structure 24 is respectively provided with a drive group 26 and the milling tool 20 at its opposite ends, and the milling tool 20 is arranged at the end side of the bearing structure 24 facing the positioning structure 22, so as to actuate the milling tool 20 through the drive group 26. Specifically, the drive group 26 is a motor, which is connected through a linkage 26a (such as a belt) via a connecting member 66 (such as Figure 5The pulley shown) connects the milling tool 20, and when the drive group 26 is actuated, the milling tool 20 is driven to rotate through the linkage member 26a, so that the milling tool 20 on the bearing structure 24 can be driven by the same power group 28 at the same time to quickly machine the four feet 90 of the object 9 to the required height at the same time.

[0146] In addition, the bearing structure 24 can be lifted and lowered relative to the support structure 23 (moved up and down in the direction of arrow Z), and an adjustment structure 25 such as a combination of a rotating rod 250 and a turntable 251 is arranged on the support structure 23. The adjustment structure 25 includes a rotating rod 250 and a turntable 251 rotated by the rotating rod 250. By manually rotating the rotating rod 250 to rotate the turntable 251, the adjustment structure 25 rotates a speed reducer 25', and the speed reducer 25' drives a screw rod 250' to rotate. The screw rod 250' then drives a nut 251' to move up and down. Since the nut 251' is fixed to the bearing structure 24, the screw rod 250' can drive the bearing structure 24 to lift and lower (in the direction of arrow Z), and displace the milling tool 20 to the required height position. For example, the bearing structure 24 can be arranged on the support structure 23 through a guiding structure 24'. The guiding structure 24' includes a slide rail 240' and a slide seat 241' engaged with the slide rail 240'. Among them, the slide rails 241' are respectively fixed on the surfaces of the opposite sides of the support structure 23, and the slide seats 241' are respectively fixed on the bearing structure 24. When the rotating rod 250 rotates the turntable 251, it can respectively drive the milling tool 20 on the bearing structure 24 to linearly move up and down (in the direction of arrow Z) on the slide rail 241', and adjust the milling tool 20 to the required height for machining the foot 90 according to the scale on the digital instrument of the adjustment structure 25. Specifically, a digital instrument (not shown in the figure) can be arranged on the turntable 251 of the adjustment structure 25 to clearly control the height position of the bearing structure 24, so that the milling tool 20 can mill the required height of the four feet 90 of the object 9, such as from the height of 56 mm of the elevated floor before milling to 55 mm after milling.

[0147] Figures 2A to 2C It is a schematic diagram of the second embodiment of the floor automatic milling height device 2' of the present application. This embodiment is another mechanism design of the first embodiment, and the overall design is roughly the same, without adding or reducing the main components, so it will not be described in detail again.

[0148] As Figure 3AAs shown, taking the first embodiment as an example, when using the floor automatic milling height device 2 on the production line, a target object 9 is placed on the positioning structure 22 of the floor automatic milling height device 2 through the transportation device 1 or manually, and the fixing part 220 is simultaneously rotated and lowered to press the second surface 9b of the target object 9, and the stop part 220' abuts against the side surface 9c of the target object 9. Then, the support structure 23 is displaced towards the positioning structure 22 to move two sets of the milling height components 2a close to the positioning structure 22 together, and the carrying structure 24 is manually lifted and lowered through the adjustment structure 25 to finely adjust the height position of the milling cutter 200, so that the milling cutter tool 20 is lifted to the required height position (such as Figure 3A ' to Figure 3B shown), so that the milling cutter 200 of the milling cutter tool 20 mills the burrs on the end surfaces 9d of the four feet 90 of the target object 9, and the milling height components 2a process the raised floor to the required height dimension.

[0149] Figure 5 It is a schematic cross-sectional view of the milling cutter tool. As Figure 5 shown, the milling cutter tool 20 includes a box body 60 having an accommodation space S', a main shaft 61 passing through the accommodation space S' of the box body 60, a first bearing group 62, a second bearing group 63 and a main shaft column 64 disposed in the box body 60 and sleeved on the main shaft 61.

[0150] Specifically, the box body 60 has corresponding first and second side surfaces 60a and 60b, and the main shaft 61 has corresponding milling cutter end 61a and linkage end 61b, and the main shaft 61 is a hollow shaft. After its linkage end 61b penetrates into the accommodation space S' from the first side surface 60a of the box body 60, it penetrates out of the second side surface 60b of the box body 60. Among them, a conical accommodation space S1 in the shape of a conical hole is formed inside the milling cutter end 61a of the main shaft 61, thereby forming a fixing seat 610 for installing a tool structure 65, and the linkage end 61b is sleeved with the linkage member 26a to be coupled with the drive group 26 through the linkage member 26a. Thus, when the drive group 26 operates, the main shaft 61 and the tool structure 65 are linked to rotate through the linkage member 26a.

[0151] In an embodiment, the fixing seat 610 and the main shaft 61 are integrally formed, and a conical accommodation space S1 in the shape of a conical hole is formed inside the fixing seat 610.

[0152] In an embodiment, the tool structure 65 includes a tool body 651, a tool engaging seat 652, and a tool handle 653. The tool body 651 is disposed on the tool engaging seat 652, and the tool engaging seat 652 and the tool handle 653 are integrally formed. Thus, the tool body 651, the tool engaging seat 652, and the fixing seat 610 are stacked and fixed together. Among them, the tool handle 653 has a conical structure, so that the outer shape of the tool handle 653 corresponds to the conical receiving space S1 in the fixing seat 610, and the tool handle 653 is inserted through the conical receiving space S1, and the tool engaging seat 652 is engaged on the fixing seat 610. In addition, a groove T is formed on the surface of the tool engaging seat 652, and a tenon 71 is formed on the fixing seat 610. After the tool engaging seat 652 is disposed on the fixing seat 610, the tenon 71 is used to clamp the groove T of the tool engaging seat 652 to fix the fixing seat 610 and the tool engaging seat 652.

[0153] In an embodiment, the connecting member 66 is disposed on the linkage end 61b, and the linkage member 26a is sleeved on the connecting member 66.

[0154] In an embodiment, the tool structure 65 further includes a first bolt 654 and a plurality of second bolts 655. The first bolt 654 is along the axial direction of the main shaft 61, and sequentially passes through the tool body 651, the tool engaging seat 652, the fixing seat 610, and the connecting member 66 (such as a pulley) on the linkage end 61b from its milling cutter end 61a. Two nuts 611, 612 are respectively used at both ends of the main shaft 61 to lock the tool structure 65 and the main shaft 61, and the connecting member 66 (such as a pulley) is also locked with the main shaft 61 using a nut 613. In addition, the plurality of second bolts 655 are disposed around the first bolt 654 to further lock the tool body 651 and the tool engaging seat 652 on the fixing seat 610.

[0155] Furthermore, a first cover 601 is disposed on the first side 60a of the box body 60, and a second cover 602 is disposed on the second side 60b of the box body 60. The first cover 601 and the second cover 602 are respectively locked to the box body 60 by screws, so that the first bearing group 62, the second bearing group 63, and the main shaft column 64 are located in the receiving space S' of the box body 60. Among them, an oil hole 602a is provided in the second cover 602 for injecting lubricating oil into the box body 60.

[0156] Furthermore, a radial locking nut 72 is locked to the main shaft 61 at the second side surface 60b of the box body 60. Then, the first bearing set 62 on the main shaft 61 is made to abut against the radial locking nut 72 in sequence, and the main shaft column 64 abuts against the second bearing set 63. Among them, an end face retaining ring (or bearing end face retaining ring) 73 is sleeved at the first end face 63a of the second bearing set 63, and a washer (or bearing washer) 74 and a pressing ring (or bearing front end pressing ring) 75 are sequentially sleeved on the main shaft 61 at the second end face 63b of the second bearing set 63. Thus, the first bearing set 62, the second bearing set 63 and the main shaft column 64 are fixed on the main shaft 61 by means of the radial locking nut 72, the end face retaining ring 73, the washer 74 and the pressing ring 75.

[0157] In an embodiment, the first bearing set 62 includes two first ball bearings 621 and a first bearing spacer 622 disposed between the two first ball bearings 621. Among them, the first ball bearing 621 includes a first bearing inner ring 621a, a first bearing outer ring 621b surrounding the outside of the first bearing inner ring 621a, and a plurality of first balls 621c disposed between the first bearing inner ring 621a and the first bearing outer ring 621b; and the first bearing spacer 622 includes a first inner spacer 622a and a first outer spacer 622b surrounding the outside of the first inner spacer 622a. In a preferred embodiment, the first ball bearing 621 is a deep groove ball bearing.

[0158] In an embodiment, the second bearing set 63 includes two second ball bearings 631 and a second bearing spacer 632 disposed between the two second ball bearings 631. Among them, the second ball bearing 631 includes a second bearing inner ring 631a, a second bearing outer ring 631b surrounding the outside of the second bearing inner ring 631a, and a plurality of second balls 631c disposed between the second bearing inner ring 631a and the second bearing outer ring 631b; and the second bearing spacer 632 includes a second inner spacer 632a and a second outer spacer 632b surrounding the outside of the second inner spacer 632a. In a preferred embodiment, the second ball bearing 631 is an angular contact ball bearing.

[0159] In summary, the floor automatic milling height devices 2, 2' of the present application mainly process the height of the footrest 90 for the raised floor through the milling height assembly 2a, so as to accelerate the production schedule, improve production efficiency, and reduce labor costs at the same time.

[0160] The above embodiments are only used to illustrate the principles and effects of the present application by way of example, rather than to limit the present application. Any person skilled in the art can modify the above embodiments without departing from the spirit and scope of the present application. Therefore, the scope of the rights protected by the present application shall be as shown in the claims.

Claims

1. An automated floor milling height device, characterized in that, Comprising: A base having a working surface; A positioning structure disposed parallel to the working surface to carry an object and restrict displacement of the object. Wherein, the object has opposite first and second surfaces, side surfaces adjacent to the first and second surfaces, and a flange protruding from the side surfaces, and four pedestals are provided at four corners of the second surface; A fixing part correspondingly disposed on opposite sides of the positioning structure to press the object onto the positioning structure; A milling height component disposed displaceably on the working surface of the base and respectively arranged on opposite sides of the positioning structure to simultaneously perform milling height processing on the four pedestals of the object to machine the end faces of the pedestals of the object. And the milling height component includes a plurality of milling tools, a drive group for actuating the milling tools, a support structure disposed displaceably on the base, and a plurality of load-bearing structures disposed displaceably on the support structure. Wherein, the plurality of milling tools and the drive group are disposed on the support structure on the base through the plurality of load-bearing structures, and the milling tools and the drive group are respectively arranged on opposite sides of the load-bearing structure, and the drive group is sleeved on a connecting member of the milling tool through a linkage member to perform linkage. Wherein, the milling tool includes a box body having an accommodation space, a main shaft penetrating through the accommodation space of the box body, a first bearing group and a second bearing group disposed in the box body and sleeved on the main shaft, and a tool structure disposed at one end of the main shaft; and A driving structure that drives the support structure to displace to drive the milling height component to move linearly to perform milling height processing on the object.

2. The floor automatic milling height device according to claim 1, characterized in that, Wherein, The driving structure includes a ball screw, a bearing engaging the ball screw, and a nut engaging the ball screw. The bearing is disposed on a bearing seat fixed to the base, the nut is fixed to the bottom of the support structure, and a power group is provided on the base, which is fixedly disposed on the base through a speed reducer, and the power group drives the speed reducer to rotate the ball screw.

3. The floor automatic milling height device according to claim 1, characterized in that, Wherein, The device further includes a plurality of sliders disposed at the bottom of the support structure and a plurality of slide rails disposed on the base and correspondingly engaging the sliders, so that the sliders move linearly along the slide rails, enabling the driving structure to simultaneously drive the support structure, the two load-bearing structures thereon, the drive group fixed to the load-bearing structure, and the milling tool to displace a certain distance relative to the base.

4. The floor automatic milling height device according to claim 1, characterized in that, Wherein, An adjustment structure is disposed on the support structure to lift and lower the load-bearing structure to displace the milling tool to a required height position.

5. The floor automatic milling height device according to claim 4, wherein, Wherein, The device further includes a guiding structure, which includes a slide rail and a slider engaging the slide rail. The slide rail is fixed to the support structure, and the slider is fixed to the load-bearing structure, so that the load-bearing structure is disposed on the support structure through the guiding structure, so that when the adjustment structure is actuated, it can drive the load-bearing structure and the milling tool thereon to lift and lower relative to the support structure.

6. The floor automatic milling height device according to claim 4, characterized in that, Wherein, The adjustment structure includes a rotating rod and a turntable rotated by the rotating rod. Among them, the adjustment structure rotates a speed reducer to drive a screw rod to rotate, so that the screw rod drives a nut fixed on the bearing structure to move up and down, enabling the screw rod to drive the bearing structure to lift, and simultaneously displacing the milling tool to the required height position.

7. The floor automatic milling height device according to claim 1, characterized in that, Among them, A limiting baffle is provided on the support structure, and a stopper abutting against the limiting baffle is provided on the base platform to control the displacement distance of the support structure by controlling the position of the limiting baffle through the stopper, and a stop portion is arranged on the outer side of the positioning structure to block the side surface of the target object.

8. The floor automatic milling height device according to claim 1, wherein, Among them, The milling height device is provided with two independent support structures and four independent bearing structures in total. One independent support structure and two independent bearing structures are set as a unit, and two units are set in total. The two units are respectively arranged in parallel on opposite sides of the positioning structure. The two independent bearing structures in a single unit are respectively fixed on opposite sides of an independent support structure, so that each milling tool on the bearing structure and the support structure is driven by the same power unit at the same time. The bearing structure is an L-shaped frame body, which is symmetrically arranged on the left and right sides of the support structure. The bearing structure is respectively provided with a driving group and the milling tool at its opposite ends, and the bearing structure is provided with the milling tool at the end side facing the positioning structure to actuate the milling tool through the driving group.

9. The floor automatic milling height device according to claim 1, characterized in that, Among them, Both the first bearing group and the second bearing group include two ball bearings and a bearing spacer ring arranged between the two ball bearings. The ball bearings of the first bearing group are deep groove ball bearings, while the ball bearings of the second bearing group are angular contact ball bearings.

10. The floor automatic milling height device according to claim 1, characterized in that, Among them, The tool structure includes a tool body, a tool joint seat and its tool shank. The tool shank is in a conical structure, and the tool body is joined to one end of the main shaft through the tool joint seat and its tool shank.

11. The floor automatic milling height device according to claim 10, characterized in that, Among them, The milling tool further includes a fixed seat having a conical accommodation space, and the fixed seat is formed at one end of the main shaft, and the tool shank is inserted into the conical accommodation space, so that the tool structure is arranged at one end of the main shaft through the fixed seat, thereby stacking the tool body, the tool joint seat and the fixed seat, and then combining them into one body.

12. The floor automatic milling height device according to claim 11, wherein, Among them, The tool structure further includes a first bolt and a plurality of second bolts. The first bolt sequentially passes through the tool body, the tool joint seat, the fixed seat and the connecting member at the other end of the main shaft along the axial direction of the main shaft, and two nuts are used at both ends of the main shaft to lock the tool structure and the main shaft, and the connecting member is locked with the main shaft using another nut. The plurality of second bolts are arranged around the first bolt to lock the tool body and the tool joint seat on the fixed seat.

13. The floor automatic milling height device according to claim 11, wherein, Among them, A groove is formed on the surface of the tool joint seat, and a tenon is formed on the fixed seat. After the tool joint seat is arranged on the fixed seat, the tenon is clamped into the groove to fix the fixed seat and the tool joint seat.

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