Automatic processing device and processing method for miter saw base

Abstract

The present invention discloses an automated processing device and processing method for a miter saw base. The automated processing device sends the base to the processing device through a turnover device. The processing device first mills out each working surface, and then uses the flattened working surface as a reference to drill and tap other working surfaces. The base after processing is returned to the turnover device to realize automated processing of all processes such as feeding, processing, and discharging. The processing method is to press a group of two bases into a circulation clamping sleeve mold according to the same draft angle to form a clamp, and stack the materials, move the turnover device to the interface position on the loading and unloading side of the processing device to form a combined relationship; the base is pushed from the circulation clamping sleeve mold to the clamping sleeve mold of the processing device, and after the corresponding processing is completed on each working surface of the positioning rotating frame, it is sent back to the movable turnover frame, and the circulation clamping sleeve mold waiting for material is picked up by the picking position and returned to the bottom of the turnover device 1, until all the bases of the turnover device are processed and the turnover device moves as a whole to unload.

Description

Technical Field

[0001] The invention belongs to the technical field of miter saw component processing devices, and in particular relates to an automated processing device and a processing method for a miter saw base. Background Art

[0002] The present application is directed to a miter saw with a retractable head. Compared with a miter saw with a non-retractable head, such as the miter saw disclosed in the Chinese invention patent with authorization announcement number CN103586532B, this miter saw has a larger cutting range and enhanced practicality.

[0003] The bases of both miter saws are generally made of aluminum die-casting. The die-casting process requires the upper and lower surfaces to have draft angles. The base of the telescopic miter saw is shaped like Figure 1 and Figure 2 As shown, one end is disc-shaped, and the other end is narrow and long and extends outward. Ordinary miter saws do not have such an extension section. Its three working surfaces and various light holes and threaded holes distributed on them need to be processed. During processing, one surface must be processed first as a reference plane, and then the remaining surfaces and holes are positioned and processed based on the reference plane. Therefore, in order to complete the processing of different processes, multiple clamping, multiple flipping, and multiple transfers are required. Since the overall dimensions of the base in the length direction generally exceed 500mm, it is difficult to make a relatively simple flip fixture. Each processing process requires manual assistance in loading and unloading, which has low processing efficiency and high labor intensity. Moreover, any product that uses manual assistance in loading and unloading needs to be equipped with a separate turnover frame, which occupies site space. Summary of the invention

[0004] In view of the above-mentioned existing situation of the prior art, a technical problem to be solved by the present invention is to provide an automatic processing device for the base of a miter saw with small space occupation and high degree of automation. The automatic processing device sends the base to the processing device through a turnover device, and the processing device first mills out each working surface, and then uses the flattened working surface as a reference to drill and tap other working surfaces. The base after processing is returned to the turnover device, realizing the automatic processing of all processes such as feeding, processing, and discharging.

[0005] The inventive object of the present invention is achieved through the following technical solutions: an automatic processing device for a miter saw base, including a turnover device and a processing device. The turnover device is located on the loading and unloading side of the processing device, including a bottom frame that is movably and stably standing on the bottom surface, with an upward side and a side toward the processing device being open, a movable turnover frame whose lower part is in the bottom frame and can be moved toward one side of the processing device as a whole, a circulating in-and-out mechanism with one part arranged in the bottom frame and the other part arranged in the movable turnover frame, and a circulating clamping sleeve mold for clamping the base that circulates in the movable turnover frame; the processing device includes a mounting table, a processing assembly fixed on the mounting table surface, and a discharging conveyor belt located below the processing assembly and cantilevered at one end.

[0006] Another technical problem to be solved by the present invention is to provide a processing method of the processing device as described above, which is achieved by the following technical solution, comprising the following steps:

[0007] a. Prepare for loading, with two bases as a group, fill and press evenly according to the draft angle of the base and the draft angle of the circulation clamping sleeve, and install the base into the circulation clamping sleeve to form a clamp; stack multiple circulation clamping sleeves installed in the base horizontally in the movable turnover frame according to the direction of the slide grooves on the guide pieces at both ends, in coordination with the positioning strips in the first track; push the turnover device rotating with small wheels to the docking point on the loading and unloading side of the processing device, adjust the positioning support to do a good job of parking and fixing, so that the two form a combined and integrated relationship;

[0008] b. ① The turnover device is started, and the cyclic in-and-out mechanism is in motion. Under the lifting action of the lifting mechanism, the flow clamping die stacked on the top is pushed into the second track. Driven by gravity and corrected by the elastic pressure plate, the positioning bar enters the gap guide groove of the horizontal walking guide block. Under the correction of the positioning bar, the flow clamping die slides along the second track and the arc transition angle to the lower end of the upper part of the positioning bar in the third track. After a circular arc transition angle and the correction of the elastic pressure plate, the flow clamping die has changed from horizontal to vertical, so that when the flow clamping die stops at the positioning rod of the positioning cylinder, it is parallel to the clamping mechanism of the feeding position of the processing device, and the draft angle is consistent. The movable turnover frame moves toward the processing device and is locked;

[0009] ② The cantilever of the discharge conveyor extends into the circulating in-and-out mechanism at the lower side of the pushing mechanism; the pushing mechanism is activated, the sliding guide is inserted into the casting process hole and the weight-reducing hole of the base, and the base is extruded from the circulation clamping sleeve along the sliding guide in the opposite direction of the draft angle by the ejection pusher, and is pushed into the clamping mechanism of the processing device; the positioning rod of the positioning cylinder is retracted, and the empty circulation clamping sleeve falls on the telescopic rod of the reversing limit cylinder, and the ejection pusher pushes again to push the empty circulation clamping sleeve from the vertical direction back to the horizontal direction, and the telescopic rod of the reversing limit cylinder is retracted, and the circulation clamping sleeve falls horizontally downward with the draft angle expanded on the base supported by the cantilever of the discharge conveyor, and the movable turnover frame moves out of the processing device and is locked, and the cantilever of the discharge conveyor is withdrawn;

[0010] c. When the processing device is running, the loading side of the positioning rotary frame is called the loading working surface, the opposite side is the first drilling and tapping working surface, the upward side is the milling working surface, and the downward side is the unloading working surface. The bases carried by the clamping mechanisms on the four surfaces are in different processing stages, and the two end surfaces are the second drilling and tapping working surface and the third drilling and tapping working surface respectively;

[0011] After the positioning turret is started, each rotation degree will switch the base to be processed from the loading working surface, the milling working surface, the first drilling and tapping working surface, and the unloading working surface in sequence. After each conversion, the magnetic seat is locked and the outer ring turret is locked;

[0012] On the loading working surface, the clamping mechanism receives the base to be processed from the turnover device and starts the clamping function to fix it. At this time, the bottom plane of the base to be processed faces outward and is higher than the clamping mechanism to have space for milling. The height is controlled by the stroke of the pushing mechanism when pushing;

[0013] Milling working surface, first complete the milling processing of the bottom plane of the base on the clamping mechanism, then start the gear drive motor to move the push table box out of the positioning turret, the outer ring turret lock is released, the flipping motor is started, the clamping mechanism flips, the base working surface flips upward, the top pressure piece is released, and the two disc milling cutters move to the top of the two base disc surfaces respectively and sink to the required height, start the first piston assembly to push the two bases upward until they collide with the disc milling cutters, then the top pressure piece is locked, and the outer ring turret is locked;

[0014] The first drilling and tapping working surface is where the drilling and tapping processes of the mounting holes on the base working surface are completed;

[0015] The second drilling and tapping working surface and the third drilling and tapping working surface complete the drilling and tapping process of the mounting holes of the head mounting surface. This process can be carried out simultaneously with the first drilling and tapping working surface;

[0016] The bottom working surface, the clamping mechanism carrying a set of completed processing bases is driven by the flipping motor to rotate, and the flipping is synchronized with the clamping mechanism on the milling working surface. The second piston assembly pushes and unloads it onto the discharge conveyor belt, and sends it to the cantilever of the discharge conveyor belt, waiting to enter the cycle in and out mechanism again to be picked up by the clamping sleeve mold. The empty clamping mechanism rotates again with the positioning rotating frame and returns to the loading working surface;

[0017] d. The circulating clamping die sleeve that is fitted with the base on the discharge conveyor belt slides downward in a horizontal state under the action of gravity until it enters the lower bend section, and maintains a horizontal state with the cooperation of another elastic pressure plate to enter the bottom of the fourth track, and then is lifted upward by the lifting mechanism and returns to the stacking array of the circulating clamping die sleeve in the turnover device. At the same time, the top layer of a new base to be processed is once again pushed out of the stacking array as the circulating clamping die sleeve is lifted, and a new round of processing turnover is carried out, which is circulated in sequence until all the bases of the turnover device are processed and the turnover device leaves the processing device as a whole.

[0018] In summary, the present invention has the following advantages compared with the prior art:

[0019] 1. The present invention is a special processing device customized according to the shape, size and material of the miter saw base. The core concept of the design is ① that one machine provides multiple working positions to improve processing efficiency; ② that a flip function is set so that the workpiece can be turned over, and one milling cutter can complete the milling of the upper and lower surfaces of the workpiece, and use the first processed working surface as the reference surface for subsequent processing; ③ that the base to be processed can be automatically loaded, and after processing is completed, it can be automatically unloaded and returned to the turnover device. When the base returns to the turnover frame, it also drives a new round of bases to be processed.

[0020] Second, the present invention presses a set of two bases into a flow clamping sleeve mold according to the same draft angle to form a clamp, and stacks them into a turnover device for loading, and moves the turnover device to the interface position on the loading and unloading side of the processing device to form a combined relationship;

[0021] The turnover device is started, and the base is pushed from the circulation clamping sleeve die to the clamping sleeve die of the processing device to complete the processing; the empty circulation clamping sleeve die is moved down to the picking mechanism;

[0022] The processing device is started, and after the corresponding processing is completed on each working surface of the positioning rotary frame, the material is sent back to the movable turnover frame by the discharge conveyor belt, and is picked up by the flow clamping sleeve mold waiting for the material at the picking position and returned to the bottom of the turnover device 1;

[0023] The lifting mechanism is lifted to retract the circulating clamping die that has returned to the bottom of the turnover device into the stacking array. At the same time, a new workpiece to be processed is moved out of the stacking array to enter a new processing cycle, which is carried out in sequence until all the bases of the turnover device are processed and the turnover device moves as a whole to unload.

[0024] 3. The present invention utilizes the characteristics of aluminum being soft in texture, easy to cut, and having little mutual influence when processed together, and arranges multiple processing surfaces in the same processing device. The original repeated clamping and positioning of multi-station processing are reduced to only loading and positioning, which correspondingly reduces the space occupied by the equipment. The side clamping using the draft angle can easily obtain reliable clamping without interfering with the processing position. The route along which the base is driven in the turnover device is guided by relevant components, with a short path and high efficiency. In addition, the power sources of the present invention are ordinary cylinders and motors, which can be easily combined with programs to achieve automatic control. Therefore, the overall processing efficiency is improved, the labor intensity is reduced, and the processing accuracy is improved, basically achieving the effect of a machining center. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the base;

[0026] Figure 2 This is a schematic diagram of the structure of the base from another angle;

[0027] Figure 3 It is a structural schematic diagram of the clamping base of the flow clamping sleeve mold;

[0028] Figure 4 It is a structural schematic diagram of the present invention in an application scenario;

[0029] Figure 5 It is a schematic diagram of the structure of the present invention (the conveyor belt part, the movable turnover frame and the bottom frame part added in the processing device are cut away for easy understanding and observation);

[0030] Figure 6 It is a schematic diagram of the structure of the present invention (in Figure 4 On the basis of further hiding the flow clamping die);

[0031] Figure 7 It is a schematic diagram of the structure of the present invention (in Figure 5 was redirected on the basis of

[0032] Figure 8 It is a schematic diagram of the structure of the present invention in an application scenario, in which the flow clamping sleeve die is in a turning state (part of the processing device is hidden);

[0033] Fig. 9 It is a schematic diagram of the structure of the present invention in an application scenario, in which the flow clamping sleeve mold completes the clamping of the processed base and then slides down and turns again;

[0034] Fig.10 yes Fig. 9 A schematic diagram of the structure from another angle of the foundation;

[0035] Fig.11 A schematic diagram of the structure after the mounting seat and the sliding guide are combined;

[0036] Fig.12 It is a structural diagram of the bottom frame;

[0037] Fig.13 It is a schematic diagram of the structure of the present invention in an application scenario (part of the processing device is hidden).

[0038] Fig.14 It is a schematic diagram of the structure of the elastic inner ring clamping block clamping the base;

[0039] Fig.15 It is a structural schematic diagram of the clamping mechanism clamping the base;

[0040] Fig.16 It is a structural schematic diagram of the positioning rotating frame;

[0041] Fig.17 It is a schematic diagram of the structure of the processing device;

[0042] Fig.18 It is a schematic diagram of the structure after the processing device and the mounting table are combined;

[0043] Fig.19 It is a structural schematic diagram of the processing device from another angle;

[0044] Fig. 20 It is a schematic diagram of the structure of the rigid outer ring rotating frame;

[0045] Fig.21 It is a structural schematic diagram of the rotating frame body;

[0046] Fig. 22 It is a structural diagram of the push table box;

[0047] Fig.23 It is a schematic diagram of the local structure after the rack guide rail and the gear drive motor are combined.

[0048] Markings in the figure:

[0049] Base 01, cylinder assembly 02, turnover device 1, processing device 2, bottom frame 10, movable turnover frame 20, arc 21, guide rail 22, roller 23, circulation in and out mechanism 30, circulation runway 31, first track 311, second track 312, third track 313, fourth track 314, positioning bar 32, elastic pressure plate 35, pushing mechanism 36, mounting seat 361, sliding guide 362, guide rod 62a, guide rail 62b, pushing bottom plate 62c, ejection pusher 363, positioning cylinder 364, picking mechanism 37, reversing limit cylinder 371, extrusion sleeve cylinder 372, lifting mechanism 38, fork arm 381, support table 382, ​​circulation clamping sleeve 40, pulley 41, guide 42, vertical walking guide block 421, horizontal walking guide block 422, mounting table 5 0, processing assembly 60, assembly body 61, positioning turret 62, central axis a1, swivel a2, gear ring a3, clamping mechanism 621, elastic inner ring clamp 21a, outer ring turret 21b, bolt a11, top pressure piece a12, short shaft a13, positioning hole a14, pneumatic positioning pin a15, flipping motor a16, movable push table 622, rack slide 22a, push table box 22b, pass hole 22c, gear drive motor 22d, piston through hole 22e, first piston assembly 22f, second piston assembly 22g, support seat 22h, turret body 623, milling assembly 63, forward drilling assembly 64, lateral drilling assembly 65, magnetic seat 66, discharge conveyor belt 70, working surface m1, head mounting surface m2, bottom plane m3, first hole k1, second hole k2. DETAILED DESCRIPTION

[0050] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0051] Example 1

[0052] The present invention provides an automatic processing device for a miter saw base. Figure 4 The schematic diagram of the automatic processing device in operation is shown, which as a whole comprises a turnover device 1 and a processing device 2. The turnover device 1 is located on the loading and unloading side of the processing device 2, and comprises a bottom frame 10 which is movably and stably standing on the bottom surface, and is open on the upper side and the side facing the processing device 2, a movable turnover frame 20 whose lower part is in the bottom frame 10 and can be moved as a whole toward the side of the processing device 2, a circulating in-and-out mechanism 30 which is partly arranged in the bottom frame 10 and the other part is arranged in the movable turnover frame 20, and a circulating clamping sleeve mold 40 for clamping the base 01 which circulates in the movable turnover frame 20; the processing device 2 comprises a mounting table 50, a processing assembly 60 fixed on the table surface of the mounting table 50, and a discharging conveyor belt 70 which is located below the processing assembly 60 and has one end cantilevered out;

[0053] Figure 7The specific form of the movable turnover frame 20 installed in the bottom frame 10 is shown. The bottom frame 10 is a bearing mechanism, which is in the shape of a rectangular box structure with an upper and a front open, other surfaces closed, and a cross section with one side open. A small wheel and a positioning support are installed on the bottom. The movable turnover frame 20 is a rectangular groove structure that is through from top to bottom and one side of the cross section is also open. When installed, the opening direction of the cross section of the movable turnover frame 20 is consistent with the opening direction of the cross section of the bottom frame 10, and faces the side of the processing device 2. The wall portion on the side opposite to the opening has a curvature 21, and the curvature 21 matches the curvature of the outer edge of the flow clamping sleeve 40. The curvature of the outer edge of the circulation clamping die set 40 is not centered, and the flaring direction of the circulation clamping die set 40 placed in accordance with the curvature 21 is downward, which can avoid misplacement. The outer side surfaces on both sides of the opening are symmetrically provided with guide rails 22, and two guide rails 22 are symmetrically provided with more than two rollers 23 on one side toward the bottom. The corresponding positions of the two inner side walls of the bottom frame 10 are provided with grooves for the passage of the guide rails 22 and the rollers 23. The movable turnover frame 20 can move in and out after cooperating with the bottom frame 10, and there is a cavity at the bottom, which provides space for the lifting mechanism 38 to lift the circulation clamping die set 40 back to the movable turnover frame 20;

[0054] Figure 4-12 The positions of the circulating in-and-out mechanism 30 in the turnover device are shown respectively. The circulating in-and-out mechanism 30 includes a circulating runway 31 symmetrically arranged on both inner sides of the movable turnover frame 20. The circulating runway 31 includes a first track 311 arranged on both inner side walls of the movable turnover frame 20 for the guide member 42 to pass through, a second track 312 extending toward one side of the processing device 2 and tilting downward after being transitionally connected to the upper arc of the first track 311, a third track 313 extending vertically downward after being transitionally connected to the far end arc of the second track 312, a fourth track 314 extending toward one side of the first track 311 and tilting downward after being transitionally connected to the lowest end arc of the third track 313, and entering the first track 311, the first track 311, the second track 312, the third track 313, The fourth track 314 forms a circulating runway 31 with a closed-loop structure. In order to make each circulating clamping sleeve mold 40 flow in the runway in the designed direction, the straight sections in the two sets of runways are provided with positioning bars 32. The positioning bars 32 can control the guide member 42 not to rotate when it moves. The middle section of the positioning bar 32 in the third track 313 is partially cut off, the purpose is to eliminate the control of the positioning bar 32 on the guide member 42, complete the conversion of the circulating clamping sleeve mold 40 from a vertical state to a horizontal state, and a pushing mechanism 36 is arranged at the upper section of the cut-off part to realize the handover of the base 01 between the turnover device 1 and the processing device 2. At this time, the rotating clamping sleeve mold 40 is in a vertical state, and the lower section of the cut-off part is arranged with a picking mechanism 37 for picking up the base 01 transmitted after processing. At this time, the circulating clamping sleeve mold 40 needs to be in a horizontal state;

[0055] Figure 4-10The positions of the pushing mechanism 36 in the cyclic in-and-out mechanism 30 are shown respectively, including a mounting seat 361 fixed to the outside of the third track 313, a sliding guide member 362 arranged in the mounting seat 361 and driven to extend and retract by a cylinder, an ejection pusher 363 arranged in the mounting seat 361 and driven by a cylinder, and a cut-out section of the positioning strip 32 in the third track 313, and a positioning cylinder 364 arranged in the mounting seat 361 and whose telescopic rod can enter the third track 313;

[0056] from Figure 2 It can be seen that the base 01 has a plurality of weight-reducing or process round holes and waist holes on the center line in the length direction. The sliding guide 362 uses these round holes and waist holes to pass through and enter the clamping mechanism 621 of the processing device 2, and then completes the transfer and handover through the push of the ejection pusher 363 (the ejection pusher 363 is set at the position of pushing the disc of the base 01 in this embodiment, and can also be other positions or multiple combinations of pushes); Fig.11 The position and shape of the sliding guide 362 in the mounting seat 361 are shown. The sliding guide 362 includes an upper and lower group of guide rods 62a, a guide rail 62b for stabilizing the guide rods 62a, and a pushing base plate 62c that connects the upper and lower groups of guide rods 62a into a whole. A group of guide rods 62a means at least two or more rods with circular or waist-shaped cross-sections or combined with each other, so that the base 01 can slide stably to the opposite direction.

[0057] The picking mechanism 37 is included in Figure 6-8 The reversing limit cylinder 371 shown in the figure is fixed to the outside of the third track 313 and its telescopic rod can enter the third track 313, and the extrusion sleeve mold cylinder 372 is fixed to the outside of the third track 313 and its telescopic rod can enter the third track 313;

[0058] Fig.13 As shown, the lifting mechanism 38 includes a liftable fork arm 381, a support platform 382 installed on the side wall of the arc 21, and the fork arm 381 refers to the lifting mechanism of the fork arm of a forklift, and is lifted and lowered by a motor-driven screw transmission. When the fork arm 381 is not working, it is parked under the fourth track 314 and in the cavity at the bottom of the movable turnover frame 20. The support platform 382 is a variant pawl with one-way passability. When the support platform 382 is pushed upward from the bottom, the support platform 382 shrinks inward to make way, and when the support platform 382 is pushed downward from the top, the support platform 382 does not move, playing a role of stopping retreat. The support platform 382 is a support for the stacking array of the circulating clamping sleeve mold 40;

[0059] The cyclic in-and-out mechanism 30 also includes one or more elastic pressure plates 35 arranged at each curved section of the runway. Each elastic pressure plate 35 can obtain elastic force to deviate to the inner side of the cyclic in-and-out mechanism 30 by connecting the pressure plate to an elastic band or setting a torsion spring at the end of the shaft. However, different elastic forces need to be given according to the different positions of the elastic pressure plates 35, so that the elastic force can push the circulation clamping sleeve 40 to make a small rotation as required, but it is better not to block the movement of the circulation clamping sleeve 40 in the runway. For example, at the curved section between the second track 312 and the third track 313, the circulation clamping sleeve 40 slides down according to the inclination of the second track 312. The elastic force here needs to be relatively small, that is, the elastic force cannot be greater than the potential energy of the slide to stop it from sliding down. At the curved section between the third track 313 and the fourth track 314, the circulation clamping sleeve 40 slides vertically along the third track 313. The potential energy of the slide here is large, and the elastic force needs to be relatively large. The elastic force of the elastic pressure plates 35 at other places is also selected and set according to actual needs.

[0060] Reference Figure 3 The circulation clamping sleeve 40 has the same draft angle as the base 01, and is provided with an opening on one side of the circle. The opening structure naturally shrinks inward. The base 01 can overcome the elastic force of the inward contraction by applying appropriate force to squeeze into the circulation clamping sleeve 40 to form a clamp. A cylindrical pulley 41 is provided on each side of the opening, and a guide 42 is provided on the outer end surface of the pulley 41. The guide 42 includes a vertical walking guide block 421 parallel to the large plane of the circulation clamping sleeve 40, and a horizontal walking guide block 422 cross-intersecting the vertical walking guide block 421. There is a gap at the intersection of the two, that is, both sides of the vertical walking guide block 421 and both sides of the horizontal walking guide block 422 are processed with guide grooves of the same size gap, and the guide grooves are V-shaped to facilitate sliding with the positioning strip 32.

[0061] Figure 17-18 The specific form of the processing assembly 60 installed on the mounting table 50 of the steel structure in the form of a long table is shown. The processing assembly 60 includes an assembly body 61 with a drive, clamping and control system, a positioning rotating frame 62 installed on the assembly body 61, one end of which is clamped by the central axis a1 and the other end is fitted with a rotating ring a2 to complete the positioning connection, a milling processing component 63 located above the assembly body 61 and detachably fixedly connected to the assembly body 61, a forward drilling and tapping component 64 located at the rear of the processing assembly 60 and parallel to the central axis a1 and can be translated along the axial direction and the distance from the axis can be changed, a lateral drilling and tapping component 65 located at the rear of the processing assembly 60 and detachably fixedly connected to the two sides of the assembly body 61, and a magnetic suction seat 66 fixed on the assembly body 61, tightly and rotatably matched with the rotating ring a2, and providing support for the rotating ring a2, and providing magnetic suction fixation when the positioning rotating frame 62 is rotated to a preset position;

[0062] Figure 16-17 The positioning turret 62 is shown, which is located between the central axis a1 and the rotating ring a2. The positioning turret 62 includes a turret body 623 with a plate surface on one side where the central axis a1 is installed, and the rest of the body is in the form of a frame with a square cross section. The four surfaces that can rotate around the central axis a1 are respectively provided with clamping mechanisms 621 for fixing the base 01 during processing, and a movable push platform 622 is provided in the turret body 623 for pushing the base 01 upward and for pushing the base 01 downward to complete unloading after all processing is completed; each clamping mechanism 621 can be independently flipped over and locked, and the processing surface can be switched by rotating the positioning turret 62 90° each time to complete processing of different processes. The upward pushing function is provided in the movable push platform 622 so that after one plane processing of the base 01 is completed, it can be repositioned based on the processed plane to complete processing of the remaining parts. Fig.18 and Fig.19 The installation position of the movable push platform 622 and the partially cut-away internal details are shown.

[0063] Fig.15 The schematic diagram of the clamping mechanism 621 after clamping the base 01 is shown. The clamping mechanism 621 and the flow clamping sleeve die 40 are provided with the same clamping position to facilitate the handover. The clamping methods of the two are different. The clamping mechanism 621 includes an elastic inner ring clamping block 21a which is directly in contact with and clamped on the side of the base 01 and is located on one side of the circle structure and has a notch, and an outer ring rotating frame 21b for installing the elastic inner ring clamping block 21a; the side of the elastic inner ring clamping block 21a has the same draft angle as the base 01, and the opening here not only acts as a jaw for clamping, but also leaves space for the processing of the head mounting surface m2; the material of the elastic inner ring clamping block 21a is preferably nylon plate;

[0064] like Fig. 20 As shown, the outer ring rotating frame 21b and the elastic inner ring clamp 21a are both frame structures, and one side of the circle structure is also open, and its function is to leave space for the processing of the machine head mounting surface m2. The elastic inner ring clamp 21a is fixed by bolts a11 in the middle plane of the frame, and the two arc sections on both sides are provided with pneumatic pressing parts a12. When clamping is required, the pressing parts a12 extend outward to push the arc sections of the elastic inner ring clamp 21a to move inward, that is, the elastic inner ring clamp 21a is subjected to force at the opening to clamp the base 01; in addition, a short shaft a13 is respectively provided at the center of the two ends of the outer ring rotating frame 21b, one of the short shafts a13 can be connected to the air nozzle, and an air channel is provided between the short shaft a13 and all the pressing parts a12, so as to obtain the power source of the pressing parts a12, and a positioning hole a14 is provided next to each short shaft a13, and the positioning hole a14 is used for the external pin shaft to enter so that the clamping mechanism 621 is fixed.

[0065] Fig.21The rotating frame body 623 is shown. It can be seen that each frame beam at one end of the rotating frame body 623 is disconnected, and there is also a notch on the plate surface at the other end, both of which are for the purpose of providing processing space. A rotating ring a2 is fixedly connected to one end of the rotating frame body 623 by bolts, and a gear ring a3 is fixedly connected to the other end by bolts. The gear ring a3 is connected to the discharge conveyor belt 70 through the transmission cooperation of the gear and the synchronous belt to provide power for the discharge conveyor belt 70. The advantage of such a setting is that the action rhythm of the two is consistent. In addition, the rotating ring a2 and the gear ring a3 also stabilize the frame form of the rotating frame body 623 with a notch; each frame beam and plate surface on the end face of the rotating frame body 623 is provided with a first hole k1 and a second hole k2, wherein the first hole k1 is located at the center of the internal space. After the first holes k1 at both ends cooperate with the short shafts a13 at both ends of the outer ring rotating frame 21b, a rotatable connection is completed. The second hole k2 corresponds to the position of the positioning hole a14, and timely positioning is performed by setting a pneumatic positioning pin a15 externally; Fig.16 The schematic diagram shown is after the clamping mechanisms 621 are installed on the four sides of the rotating frame body 623. In order to enable each clamping mechanism 621 to be turned over individually, a turning motor a16 connected to one of the short shafts a13 is provided at one end of the rotating frame body 623;

[0066] The central axis a1 has a cylindrical extension toward the inside of the rotating frame body 623, such as Fig.19 , Fig.21 As shown, the movable push platform 622 includes a rack rail 22a which is tightly and rotatably sleeved on the cylinder at one end and fixed at the other end by setting a track support seat 22h, and a push platform box 22b with a rectangular box structure; both ends of the box are provided with a passage hole 22c with the same cross section as the rack rail 22a, and the center line of the passage hole 22c coincides with the axis of the rack rail 22a; the cross section of the rack rail 22a is from Fig.11 It can be seen that the bottom is an arc and the top is a rectangle, and the teeth are on the upper surface of the rectangle. The arc of the cross-sectional shape is convenient for sliding, and the rectangle ensures that the rectangular box is stable when moving. The gear drive motor 22d is fixedly arranged on the outward end surface of the rectangular box to mesh with the teeth on the upper surface of the rack slide 22a, so that the gear drive motor 22d can move along the direction of the rack slide 22a when it is running;

[0067] See also Fig. 22 A group of piston through holes 22e are diagonally provided on the upward and downward surfaces of the push platform box 22b, and the positions of the two piston through holes on the downward and upward surfaces are staggered, that is, they are downward in the direction of the draft angle, so that the processed base 01 can fall onto the discharge conveyor belt 40. Generally speaking, the base 01 can fall by its own weight. The movable push platform 622 also includes a first piston assembly 22f for pushing upward and a second piston assembly 22g for pushing downward arranged in the push platform box 22b.

[0068] A processing method, referring to all the accompanying drawings, uses the above-mentioned automatic processing device to process the base, and the processing method includes the following steps:

[0069] Prepare for loading, take two bases 01 as a group, fill and press evenly according to the draft angle of the base 01 and the draft angle of the circulation clamping sleeve 40, and install the base 01 into the circulation clamping sleeve 40 to form a clamp; stack the multiple circulation clamping sleeves 40 installed in the base 01 horizontally in the movable circulation frame 20 according to the direction of the slide grooves on the guide members 42 at both ends, and cooperate with the positioning strips 32 in the first track 311. When stacking, the circulation clamping sleeves 40 need to follow the curvature 21 of the side wall; push the turnover device 1 rotating with a small wheel to the docking point on the loading and unloading side of the processing device 2, adjust the positioning support to do a good job of parking and fixing, so that the two form a combined integral relationship;

[0070] The turnover device 1 is started, and the circulating in-and-out mechanism 30 is in action. Under the lifting action of the lifting mechanism 38, the flow clamping sleeve die 40 stacked on the top is pushed into the second track 312. Driven by gravity and corrected by the elastic pressure plate 35, the positioning bar 32 enters the gap guide groove of the horizontal walking guide block 422. Under the correction of the positioning bar 32, the flow clamping sleeve die 40 slides along the second track 312, the arc transition angle, and the lower end of the upper part of the positioning bar 32 in the third track 313. After a circular arc transition angle and the correction of the elastic pressure plate 35, the flow The rotating clamping sleeve mold 40 has changed from horizontal to vertical, so that when the circulating clamping sleeve mold 40 stops at the positioning rod of the positioning cylinder 364, it is parallel to the clamping mechanism 621 of the feeding position of the processing device 2, and the draft angle is consistent. The movable turnover frame 20 moves toward the processing device 2 and is locked. At this time, the cantilever of the discharge conveyor belt 70 extends into the circulating in-and-out mechanism 30 at the lower side of the pushing mechanism 36; the pushing mechanism 36 is activated, and the guide member 362 is inserted into the casting process hole and the weight reduction hole of the base 01, and the base 01 is removed from the circulating clamping sleeve mold 40 along the guide member 362 by the ejection pusher 363. The mold is extruded against the draft angle and pushed into the clamping mechanism 621 of the processing device 2 (here, the pushing and receiving can also be pushed out along the draft angle, as long as it is consistent with the draft angle of the clamping mechanism 621); the positioning rod of the positioning cylinder 364 is retracted, and the empty circulation clamping sleeve mold 40 falls on the telescopic rod of the reversing limit cylinder 371, and the ejection pusher 363 pushes again to push the empty circulation clamping sleeve mold 40 from the vertical direction back to the horizontal direction, and the telescopic rod of the reversing limit cylinder 371 is retracted, and the circulation clamping sleeve mold 40 falls horizontally downward with the draft angle expanded. 0 is on the base 01 supported by the cantilever. At this time, the position set by the extrusion sleeve die cylinder 372 is just above the pulley 41, that is, the telescopic rod of the extrusion sleeve die cylinder 372 just touches the upper half of the pulley 41 when it is extended. In view of the arc appearance of the pulley 41, the continued extension of the telescopic rod will force the pulley 41 to move downward. Therefore, under the simultaneous extension of the telescopic rods on both sides, the pulley 41 moves downward synchronously, and the flow clamping sleeve die 40 completely fits the two bases 01 through extrusion. The movable turnover frame 20 moves out of the processing device 2 and is locked, and the cantilever of the discharge conveyor belt 70 is withdrawn accordingly;

[0071] When the processing device 2 is running, for the sake of convenience of description, the loading side of the positioning turntable 62 is called the loading working surface, the opposite side is the first drilling and tapping working surface, the upward side is the milling working surface, and the downward side is the unloading working surface. The base 01 carried by the clamping mechanism 621 on the four surfaces is in different processing stages, and the two end surfaces are the second drilling and tapping working surface and the third drilling and tapping working surface respectively.

[0072] After the positioning rotating frame 62 is started, it rotates 90 degrees each time, and the base 01 to be processed is sequentially switched from the loading working surface, the milling working surface, the first drilling and tapping working surface (including the second drilling and tapping working surface and the third drilling and tapping working surface), and the unloading working surface. After each conversion, the magnetic suction seat 66 is locked and the outer ring rotating frame 21h is locked;

[0073] Loading work surface, where the clamping mechanism 621 receives and activates the clamping function to fix the base 01 to be processed from the turnover device 1. At this time, the bottom plane m3 of the base 01 to be processed faces outward and is higher than the clamping mechanism 621 to have space for milling. The height is controlled by the stroke of the pushing mechanism 36 when pushing;

[0074] Milling working surface, here, first complete the milling processing of the bottom plane m3 of the base 01 on the clamping mechanism 621, and then start the gear drive motor 22d to move the push table box 22b out of the positioning rack 62 to provide flipping space, the outer ring rack 21b is locked and released, the flipping motor a16 is started, the clamping mechanism 621 flips 180 degrees, the base 01 working surface m1 flips upward, the top pressure piece a12 is released, and the two disc milling cutters move to the top of the two base 01 disc surfaces respectively, and sink to the required height, start the first piston assembly 22f to push the two bases 01 upward until they conflict with the disc milling cutters, then the top pressure piece a12 is locked, and the outer ring rack 21b is locked. Here, the milling processing is completed after the disc milling cutter is positioned and adjusted to adjust the milling space and milling height, and the milling of the head mounting surface m2 is completed synchronously.

[0075] The first drilling and tapping work surface is where the drilling and tapping process of the mounting holes of the base work surface m1 is completed.

[0076] The second and third drilling and tapping working surfaces are used to complete the drilling and tapping process of the mounting holes of the head mounting surface m2. This process is carried out simultaneously with the first drilling and tapping working surface.

[0077] The bottom working surface, here, the clamping mechanism 621 carrying a group of completed processed bases 01 is driven by the flipping motor a16 to rotate 180 degrees, and the flipping is synchronized with the clamping mechanism 621 located on the milling working surface. At this time, the flared surface of the draft angle of the base 01 faces downward, and is pushed and unloaded onto the discharge conveyor belt 70 by the second piston assembly 22g, and sent to the cantilever of the discharge conveyor belt 70, waiting to enter the circulating in and out mechanism 30 again and be picked up by the clamping sleeve mold 40. The empty clamping mechanism 621 rotates 90 degrees again with the positioning rotary frame 62 and returns to the loading working surface.

[0078] The circulating clamping die 40 which is fitted with the base 01 on the discharge conveyor belt 70 slides downward in a horizontal state under the action of gravity until it enters the lower bend section, and maintains a horizontal state with the cooperation of another elastic pressure plate 35 to enter the bottom of the fourth track 314, and is then lifted upward by the lifting mechanism 38 and returns to the stacking array of the circulating clamping die 40 in the turnover device 1. At the same time, a new base 01 to be processed on the top layer is pushed out of the stacking array again as the circulating clamping die 40 is lifted, and a new round of processing turnover is carried out, which is circulated in sequence until all the bases 01 of the turnover device 1 are processed and the turnover device 1 leaves the processing device 2 as a whole.

[0079] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An automatic processing device for a miter saw base (01), characterized in that The invention comprises a turnover device (1) and a processing device (2), wherein the turnover device (1) is located on the loading and unloading side of the processing device (2), and comprises a bottom frame (10) which is movably and stably standing on the bottom surface and has an opening on the upper side and the side facing the processing device (2), a movable turnover frame (20) whose lower part is in the bottom frame (10) and can move as a whole toward the side of the processing device (2), a circulation in-and-out mechanism (30) which is partially arranged in the bottom frame (10) and the other part is arranged in the movable turnover frame (20), and a circulation clamping sleeve mold (40) for clamping a base (01) which circulates in the movable turnover frame (20); the processing device (2) comprises a mounting table (50), a processing assembly (60) fixed on the table surface of the mounting table (50), and a discharging conveyor belt (70) which is located below the processing assembly (60) and has one end cantilevered out; The bottom frame (10) is a bearing mechanism, and is in the shape of a rectangular box structure with an upper and a front surface open, other surfaces closed, and a cross section with one side open. A small wheel and a positioning support are installed on the bottom surface. The movable turnover frame (20) is a rectangular groove-shaped structure that is through-through from top to bottom and has one side open in the cross section. When installed, the cross section opening direction of the movable turnover frame (20) is consistent with the cross section opening direction of the bottom frame (10) and faces one side of the processing device (2). The wall portion on the side opposite to the opening has a curvature (21). The curvature (21) matches the curvature of the outer edge of the circulation clamping sleeve (40). Since the curvature of the outer edge of the circulation clamping sleeve (40) is not centered, the expansion direction of the circulation clamping sleeve (40) placed to match the curvature (21) faces downward, and the outer side surfaces on both sides of the opening are symmetrically provided with guide rails (22). Two guide rails (22) are symmetrically provided on one side toward the bottom, and grooves for the passage of the guide rails (22) and the rollers (23) are provided at corresponding positions of the two inner side walls of the bottom frame (10); The circulating in-and-out mechanism (30) comprises a circulating runway (31) symmetrically arranged on two inner sides of the movable turnover frame (20), the circulating runway (31) comprising a first track (311) arranged on two inner side walls of the movable turnover frame (20), a second track (312) extending toward one side of the processing device (2) and tilting downward after being transitionally connected to an upper arc of the first track (311), a third track (313) extending vertically downward after being transitionally connected to a far end arc of the second track (312), and a third track (313) extending vertically downward after being transitionally connected to a lowest end arc of the third track (313) and tilting toward the first track (311). A fourth track (314) extends sideways and enters the first track (311) at an angle downward, the first track (311), the second track (312), the third track (313), and the fourth track (314) on the same side form a closed-loop structured circular runway (31), the straight sections in the two groups of runways are both provided with positioning strips (32), wherein the middle section of the positioning strip (32) in the third track (313) is partially cut away, a pushing mechanism (36) is arranged at the upper section of the cut away section, and a picking mechanism (37) for picking up the base (01) transmitted after processing is arranged at the lower section of the cut away section;The pushing mechanism (36) comprises a mounting seat (361) fixed on the outside of the third track (313), a sliding guide member (362) arranged in the mounting seat (361) and driven by a cylinder to be telescopic, an ejection pushing member (363) arranged in the mounting seat (361) and driven by a cylinder, and a cut-out section of the positioning strip (32) in the third track (313), a positioning cylinder (364) arranged in the mounting seat (361) and having a telescopic rod capable of entering the third track (313); the base (01) has a plurality of weight-reducing or process circular holes and waist holes on the center line in the length direction; the sliding guide member (362) comprises a set of upper and lower guide rods (62a) and a guide rail (62b) for stabilizing the guide rods (62a), and a pushing base plate (62c) connecting the upper and lower guide rods (62a) into a whole; The picking mechanism (37) comprises a cut-off section of the positioning strip (32) in the third track (313), a reversing limit cylinder (371) fixed to the outside of the third track (313), whose telescopic rod can enter the third track (313), and an extrusion sleeve mold cylinder (372) at the lower section of the cut-off section of the positioning strip (32) in the third track (313), fixed to the outside of the third track (313), whose telescopic rod can enter the third track (313); The cyclic in-and-out mechanism (30) further comprises one or more elastic pressure plates (35) arranged at each curved section of the runway, each elastic pressure plate (35) can obtain elastic force to deviate to the inside of the cyclic in-and-out mechanism (30) by connecting the pressure plate to an elastic band or arranging a torsion spring at the end of the shaft, but different elastic forces need to be given according to different locations where the elastic pressure plates (35) are arranged; The circulation clamping sleeve mold (40) has the same draft angle as the base (01), and is provided with an opening on one side of the circle. The opening structure naturally shrinks inwards, and the base (01) can overcome the elastic force of the inward contraction by applying appropriate force to squeeze into the circulation clamping sleeve mold (40) to form a clamp. A cylindrical pulley (41) is provided on each side of the opening, and a guide member (42) is provided on the outer end surface of the pulley (41). The guide member (42) includes a vertical travel guide block (421) parallel to the large plane of the circulation clamping sleeve mold (40), and a horizontal travel guide block (422) cross-intersecting the vertical travel guide block (421), and a gap is provided at the intersection of the two. The processing assembly (60) comprises an assembly body (61) having a driving, clamping and control system, a positioning rotating frame (62) mounted on the assembly body (61) and having one end clamped by a central axis (a1) and the other end fitted by a rotating ring (a2) to complete positioning connection, a milling processing assembly (63) located above the assembly body (61) and detachably fixedly connected to the assembly body (61), a forward drilling and tapping assembly (64) located at the rear of the processing assembly (60) and parallel to the central axis (a1) and translatable along the axis and having a variable distance from the axis, a lateral drilling and tapping assembly (65) located at the rear of the processing assembly (60) and detachably fixedly connected to two side surfaces of the assembly body (61), and a magnetic suction seat (66) fixed on the assembly body (61), tightly and rotatably matched with the rotating ring (a2) and providing support for the rotating ring (a2).

Images