Automatic clamping mechanism

Abstract

The present invention relates to an automatic unclamping mechanism, which comprises an inner bracket and an outer frame. A conveying device is arranged on the top of the inner bracket. The outer frame is higher than the conveying device and is covered on the inner bracket. A lifting and positioning device capable of vertical lifting is arranged inside the inner bracket. The thick integral acrylic plate is conveyed, supported and positioned by the inner bracket. After the thick integral acrylic plate is lifted to a corresponding position below the outer frame by the lifting and positioning device, the transverse and longitudinal clamps of the thick integral acrylic plate are disassembled by the transverse disassembly device and the longitudinal disassembly device. The mechanism can realize fast and automatic batch unclamping without manual operation, thus eliminating labor costs and shortening operation time, greatly improving work efficiency, and taking into account the damage-free disassembly of the acrylic plate.

Description

Technical Field

[0001] The invention relates to acrylic production equipment, in particular to an automatic unclamping mechanism. Background Art

[0002] Today, the technology for forming straight acrylic sheets has become increasingly mature. They increase the thickness and length of the sheets through compounding and splicing, thereby achieving the desired shape and fixing of the acrylic sheets. For thicker acrylic sheets, two sheets are usually stacked and filled with glue in the middle to form a composite. After the glue is filled, the four sides of the acrylic sheet need to be clamped and fixed with clamps. The clamps are removed after the glue solidifies. When manufacturing thick acrylic sheets, the applicant uses a previously applied patent: an acrylic forming mold with block-shaped plywood. Each edge of each acrylic sheet is clamped with six or more block-shaped plywood. This provides stable clamping. However, during disassembly, manual disassembly without loosening the clamping springs can easily scratch the acrylic sheet at the clamping point. Loosening the bolts that clamp the springs is time-consuming and labor-intensive, and is not conducive to subsequent convenient reuse. Summary of the Invention

[0003] In response to the disassembly problems of the existing technology, the present invention provides an automatic unclamping mechanism with a compact structure that can be quickly disassembled without removing the clamping spring locking bolt, taking into account the subsequent convenient reuse and effectively preventing the acrylic plate from being scratched during disassembly.

[0004] The technical solution adopted by the present invention is: an automatic unloading clamp mechanism, characterized in that it includes an inner bracket and an outer frame, a conveying device is provided on the top of the inner bracket, the outer frame is higher than the conveying device and is covered on the inner bracket, and a lifting and positioning device that can be vertically lifted is provided inside the inner bracket.

[0005] The lifting and positioning device includes a lifting base, a lifting drive motor, a lifting frame, a supporting column, a vacuum suction cup, a vertical reversing reducer, and a worm gear group. The lifting drive motor is arranged on the lifting base, and the lifting drive motor is vertically connected to the vertical reversing reducer. The four horizontal and vertical output shafts of the vertical reversing reducer are each connected to a group of worm gear groups. The worm gear of the worm gear group is connected to the output shaft. The worm is vertically arranged and spirally connected to the lifting frame. A plurality of supporting columns are arranged in an array on the lifting frame, and a vacuum suction cup is arranged on the supporting columns.

[0006] The outer frame is provided with a transverse disassembly device and a longitudinal disassembly device, and the longitudinal disassembly device includes a longitudinal bidirectional coaxial cylinder, a longitudinal driving slider, and an upper disassembly scraper device. A longitudinal bidirectional coaxial cylinder is provided in the middle of the lower part of a longitudinal beam in the longitudinal middle position of the outer frame, and the two back-to-back piston rod ends of the longitudinal bidirectional coaxial cylinder are respectively connected to the two longitudinal driving sliders, and the longitudinal driving slider is slidably hung on the lower part of the above-mentioned longitudinal beam through the track, and the bottom end of the longitudinal driving slider is also connected to the upper disassembly scraper device; the transverse disassembly device includes a transverse driving motor, a transverse driving gear set, a transverse driving chain, a transverse sprocket seat, a transverse driving slider, an upper disassembly scraper The device comprises a transverse drive motor longitudinally arranged on a transverse beam in the longitudinal middle position of the outer frame, the transverse drive motor drives a transverse drive gear set, the two ends of the above-mentioned transverse beam respectively support two transverse sprocket seats, the two mutually meshing gears of the transverse drive gear set are respectively connected to the two transverse sprocket seats on the same side of the gears via two transverse drive chains, the two transverse drive sliders are respectively passed through or connected to the two transverse drive chains and guided through the above-mentioned transverse beam, the bottom ends of the two transverse drive sliders are connected to the upper disassembly scraper device; a lower elastic auxiliary device is correspondingly provided below each upper disassembly scraper device, and the lower elastic auxiliary device is provided on the lifting and positioning device;

[0007] The upper disassembly scraper device includes a scraper body, a first-level air valve, a first-level airbag, a second-level air valve, and a second-level airbag. The scraper body can be rotatably connected to the bottom of the transverse driving slider via a scraper rotating shaft. A scraper rotating cylinder is provided on the transverse driving slider to transmit the connection to the scraper rotating shaft. The outer side of the lower part of the scraper body is connected to the first-level airbag. The first-level airbag is supplied with air from the outside through an air pipe via the first-level air valve on the scraper body. The cross-section of the first-level airbag inflated in the direction perpendicular to the extension direction of the scraper body is a triangular structure corresponding to the inward inclination angle of the clamping spring on the upper opening of the clamp. The second-level airbag is arranged in the middle or middle rear of the hypotenuse of the first-level airbag triangle and is supplied with air from the outside through the air pipe via the second-level air valve on the scraper body. The cross-section of the second-level airbag inflated in the direction perpendicular to the extension direction of the scraper body is spherical. The first-level and second-level air valves are respectively connected to electromagnetic valves for controlling on and off;

[0008] The lower elastic auxiliary device includes an auxiliary bracket, an auxiliary drive motor, an auxiliary conjugate cam group, an auxiliary drive rod, an auxiliary drive two rods, an adjustment tooth arm, an adjustment slider, an adjustment stepping motor, an adjustment gear, an auxiliary insertion swing arm, and an auxiliary spring plate. The auxiliary drive motor and the adjustment stepping motor are arranged on the lifting frame. The auxiliary drive motor outputs outward to connect the auxiliary conjugate cam. Two rotors are respectively arranged on the two cam pieces of the auxiliary conjugate cam group. The two rotors are respectively hinged at both ends of the rotor swing arm. The middle of the rotor swing arm is hinged to one end of the auxiliary drive rod. The other end of the auxiliary drive rod is hinged One end is hinged to one end of the auxiliary driving two rods and is hinged to the adjusting slider at the same time. One end of the adjusting tooth arm is toothed in meshing engagement with the adjusting gear. The adjusting gear is driven by the adjusting stepping motor. The other end of the adjusting tooth arm is rotated and connected to the auxiliary bracket. The adjusting tooth arm is provided with an adjusting slot passing through its rotating connection point on the auxiliary bracket. The adjusting slider is slidably placed in the adjusting slot. The other end of the auxiliary driving two rods is hinged to the lower end of the auxiliary insertion swing arm. The middle part of the auxiliary insertion swing arm is hinged to the auxiliary bracket via a rotating shaft. The upper end of the auxiliary insertion swing arm is connected to an auxiliary spring plate. The cross section of the auxiliary spring plate is an arc-shaped structure with the arc opening facing downward.

[0009] The inner bracket or outer frame is provided with a transmission positioning sensor corresponding to the periphery of the conveyor belt clamp acrylic plate structure on the transmission device, and the inner bracket or outer frame is provided with an auxiliary positioning sensor corresponding to the auxiliary insertion rotation shaft.

[0010] Furthermore, pressure sensors are provided between the first-stage airbag, the second-stage airbag and their respective air valves.

[0011] Furthermore, the conveying device includes a conveying roller, a conveying roller support seat, a conveying roller, and a conveying drive motor. Multiple conveying roller support seats are arranged on both sides of the top of the inner bracket. The two opposite conveying roller support seats are rolled and connected to support the two ends of the conveying roller. Multiple conveying rollers are evenly distributed on the conveying roller. One side of the conveying roller passes through the conveying roller support seat and is connected to the external conveying drive gear. The conveying drive gears on one side of the multiple conveying rollers are wrapped around the outside of the toothed chain. Any conveying roller is connected to the conveying drive motor arranged on the outside of the inner bracket.

[0012] Furthermore, the transmission positioning sensor includes a transverse transmission positioning sensor and a longitudinal transmission positioning sensor; the transmission positioning sensor includes a transverse auxiliary positioning sensor and a longitudinal auxiliary positioning sensor.

[0013] Furthermore, the auxiliary spring plate is externally vulcanized and coated with a rubber layer.

[0014] Furthermore, the scraper body is in a V-shaped structure that opens outward.

[0015] Furthermore, fixture collecting grooves are provided on the inner side surfaces of the four sides of the outer frame.

[0016] An acrylic plate fixture disassembly process, characterized by:

[0017] (1) Feeding: Use multiple clamps to install each of the four sides of the upper and lower acrylic plates. The clamps include a column plate, a mounting plate, a clamping spring, a rubber strip support plate, and a lower support plate. The mounting plate, the rubber strip support plate, and the lower support plate are vertically arranged on the upper, middle, and lower sides of the column plate. The clamping spring is installed on the mounting plate. The clamping spring is folded obliquely outward and downward, and then folded horizontally and pressed onto the upper acrylic plate. The distance between the horizontal folding edge and the rubber strip support plate is less than the thickness of the upper acrylic plate, and the distance between the rubber strip support plate and the lower support plate is the same as the thickness of the lower acrylic plate. The thickness of the acrylic sheet is determined by the adhesive strip support plate, which presses against the adhesive strip between the upper and lower acrylic sheets. Glue is poured between the upper and lower acrylic sheets and solidified into a thick, integral acrylic sheet. The thick, integral acrylic sheet is fed into the corresponding conveying device via a conveyor belt, supported on a plurality of conveyor rollers, and the lateral positioning of the feeding position is controlled by a lateral conveying positioning sensor via the conveyor belt. After the lateral positioning, the sheet is fed to the conveyor device as a whole, and the longitudinal positioning of the feeding position is controlled by a longitudinal auxiliary positioning sensor.

[0018] (3) Suction and fixation: Control the lifting drive motor to drive the vertical reversing reducer to output in four directions through the horizontal horizontal and vertical four output shafts, and the worm gear of the worm gear group on one side is engaged with the worm gear, and the worm gear drives the lifting frame to rise vertically through the spiral connection. The lifting frame is sucked by the vacuum suction cup through the support column to the lower end surface of the thick integral acrylic plate and lifted to fix the support;

[0019] (4) Preparation for horizontal disassembly: The horizontal drive motor drives the horizontal drive gear set, and the two horizontal drive chains on the two gears of the horizontal drive gear set respectively drive the horizontal drive sliders on both sides to move relative to each other to the upper side of the horizontally positioned thick integral acrylic plate. The auxiliary positioning sensor makes the upper disassembly scraper device below the horizontal drive slider correspond to the upper inner side of the horizontal side of the thick integral acrylic plate, and the upper disassembly scraper device is moved and positioned by the horizontal auxiliary positioning sensor; the scraper rotating cylinder drives the scraper body to rotate outward horizontally to the upper side of the mounting plate of the fixture through the scraper rotating shaft, and controls the lifting drive motor to slightly lift the thick integral acrylic plate, and the upper end surface of the thick integral acrylic plate squeezes the clamping spring, and the lower end of the thick integral acrylic plate and the lower support plate leave an auxiliary elastic gap; when different fixture sizes are used for thick integral acrylic plates of different thicknesses, and the length of the lower support plate changes, the stepper motor is adjusted through the adjustment The meshing of the interlocking gears drives the adjustment tooth arm to rotate, and controls the adjustment slider of the hinged auxiliary drive rod and the second rod to change the initial horizontal movement in the adjustment slide groove on the adjustment tooth arm into an inclined movement, so that the initial rotation position of the auxiliary insertion swing arm changes when the auxiliary drive rod and the second rod are linked, and the auxiliary insertion swing arm at the initial horizontal position is rotated and adjusted from the lateral inner side to the outer side of the clamp direction, thereby adjusting the position of the auxiliary spring relative to the clamp, and the auxiliary drive motor output is connected to the auxiliary conjugate cam through the two rotors and the rotor swing arm to drive the auxiliary drive rod and the second rod to drive the auxiliary insertion swing arm around the central auxiliary insertion rotation axis to drive the auxiliary spring at its upper end to insert into the auxiliary elastic gap, and control the horizontal insertion depth not to exceed 2 / 3 of the length of the lower support plate; after the auxiliary spring is inserted, the lifting drive motor returns to step (3) to attract and fix the height, and the auxiliary spring elastically deforms and is pressed between the lower acrylic plate and the lower support plate;

[0020] (5) Horizontal disassembly operation: The scraper rotating cylinder drives the scraper body to rotate vertically downward through the scraper rotating shaft. The solenoid valve controls the first-level air valve to supply air to the first-level airbag, so that the first-level airbag is formed into a triangular structure facing the fixture. The scraper body is driven by the horizontal driving slider to make the upper-level airbag fit the oblique folding edge of the clamping spring. The pressure of the first-level airbag changes after being pressurized. The pressure sensor connected to it controls the second-level air valve through the solenoid valve to supply air to the second-level airbag through the air pipe. The spherical second-level airbag is formed perpendicular to the inclined folding edge. When the scraper body moves forward horizontally outward, the oblique folding edge of the clamping spring is pushed instantly and quickly. Combined with the elastic force of the auxiliary spring acting on the lower support plate, the fixture is quickly disassembled from the horizontal side of the thick integral acrylic plate and falls into the fixture collection tank;

[0021] (6) Preparation and operation for longitudinal disassembly: The longitudinal driving slider is driven by the longitudinal bidirectional coaxial cylinder to move relatively to the top of the longitudinally positioned thick integral acrylic plate, so that the upper disassembly scraper device below the longitudinal driving slider corresponds to the upper inner side of the longitudinal side of the thick integral acrylic plate; the subsequent operation steps are the same as those in steps (4) and (5), and the fixture is quickly disassembled from the longitudinal side of the thick integral acrylic plate and falls into the fixture collection tank.

[0022] After adopting the above technical solution, the beneficial effects of the present invention are as follows: the thick integral acrylic plate is transported, supported and positioned by the internal bracket, and the thick integral acrylic plate is lifted to the corresponding position below the outer frame by the lifting and positioning device. The horizontal and vertical clamps of the thick integral acrylic plate are disassembled by the horizontal disassembly device and the vertical disassembly device. This mechanism can realize fast and automatic batch unclamping without manual operation, eliminating labor costs and shortening operation time, greatly improving work efficiency, and taking into account the damage-free disassembly of the acrylic plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the structure of the lower auxiliary device corresponding to the middle belt longitudinal disassembly device;

[0025] Figure 3 for Figure 1 Schematic diagram of the structure of the lower auxiliary device corresponding to the middle belt lateral disassembly device;

[0026] Figure 4 for Figure 1 Medium AA view;

[0027] Figure 5 for Figure 2 Enlarged view of point B in the middle;

[0028] Figure 6 for Figure 2 Enlarged view of point C in the middle;

[0029] Figure 7 for Figure 2 Enlarged view of point D in the middle;

[0030] Figure 8 It is the E-direction view in FIG7;

[0031] Figure 9 for Figure 8 Schematic diagram of the structure after adjustment;

[0032] Figure 10 This is a schematic diagram of the operation of the scraper body rotating and pressing clamp;

[0033] Figure 11 This is a schematic diagram of the scraper body pushing the detachment fixture.

[0034] In the figure: inner bracket 1, outer frame 2, conveyor roller support seat 3, conveyor roller 4, conveyor roller 5, lifting base 6, lifting drive motor 7, lifting frame 8, support column 9, vacuum suction cup 10, vertical reversing reducer 11, worm gear group 12, conveying positioning sensor 13, auxiliary positioning sensor 14, horizontal drive motor 15, horizontal drive gear group 16, horizontal drive chain 17, horizontal sprocket seat 18, horizontal drive slider 19, scraper body 20, scraper rotating cylinder 21, scraper rotating shaft 22, first-level air valve 23, first-level air bag 24, second-level air valve 25, second-level air bag 26, solenoid valve 27, auxiliary Bracket 28, auxiliary drive motor 29, auxiliary conjugate cam group 30, rotor 31, rotor swing arm 32, auxiliary drive rod 1 33, auxiliary drive rod 2 34, adjustment gear arm 35, adjustment slider 36, adjustment stepping motor 37, adjustment gear 38, auxiliary insertion swing arm 39, auxiliary reed plate 40, pressure sensor 41, fixture collection trough 42, longitudinal cylinder 43, longitudinal drive slider 44, bevel gear group 45, transmission pillar 46, upper acrylic plate 47, lower acrylic plate 48, column plate 49, mounting plate 50, clamping reed 51, rubber strip support plate 52, lower support plate 53, auxiliary elastic gap 54. DETAILED DESCRIPTION

[0035] The following is further described with reference to the accompanying drawings and examples.

[0036] Figure 1-3 As shown, an automatic clamping mechanism is shown. The view angle of the figure is projected from the front of the device, the left and right directions are horizontal, and the front and back directions are vertical.

[0037] Figure 10-11 The fixture structure of this embodiment shown in the figure includes a column plate 49, a mounting plate 50, a clamping spring 51, a rubber strip support plate 52, and a lower support plate 53. The mounting plate 50, the rubber strip support plate 52, and the lower support plate 53 are vertically arranged on the upper, middle, and lower sides of the column plate 49, respectively. The clamping spring 51 is bolted and installed on the mounting plate 50. The clamping spring is folded outward and downward, and then folded horizontally and pressed against the upper acrylic plate 47. The distance between the horizontal fold and the rubber strip support plate is less than the thickness of the upper acrylic plate, and the distance between the rubber strip support plate and the lower support plate is the thickness of the lower acrylic plate 48. The rubber strip support plate presses against the rubber strip between the upper and lower acrylic plates; glue is poured between the upper and lower acrylic plates to solidify them into a thick integral acrylic plate.

[0038] The inner bracket 1 includes multiple conveying pillars 46 arranged horizontally and vertically in parallel. A conveying roller support seat 3 is set on the two laterally opposite conveying pillars. The conveying roller 4 is connected to the conveying roller support seat, and multiple conveying rollers 5 are connected to the conveying roller 4. A lifting base 6 is set at the lower part of the inner bracket 1, and a lifting drive motor 7 is set on the lifting base. The lifting drive motor is vertically connected to a vertical reversing reducer 11. A group of worm gear groups 12 are connected to the four horizontal and vertical output shafts of the vertical reversing reducer. The worm gear of the worm gear group is connected to the output shaft. The worm is set vertically and spirally connected to the lifting frame 8. A plurality of supporting columns 9 are arranged in an array on the lifting frame, and a vacuum suction cup 10 is set on the supporting columns.

[0039] The lower elastic auxiliary devices are symmetrically arranged outward on both sides of the longitudinal direction of the lifting frame 8. Two lower elastic auxiliary devices are also symmetrically arranged outward in the middle of the lifting frame 8 between the two lower elastic auxiliary devices. The lower elastic auxiliary device includes an auxiliary bracket 28, an auxiliary drive motor 29, an auxiliary conjugate cam group 30, a rotor 31, a rotor swing arm 32, an auxiliary drive rod 33, an auxiliary drive rod 34, an adjustment tooth arm 35, an adjustment slider 36, an adjustment stepping motor 37, an adjustment gear 38, and an auxiliary insertion swing arm 39. The auxiliary bracket 28 is rotated to pass through the adjustment tooth arm 35 and the auxiliary insertion swing arm 39. The auxiliary drive motor 29 outputs a drive to drive the auxiliary conjugate wheel group 30, and the auxiliary conjugate cam 30 presses against the auxiliary bracket 28. The two rotors 31 are connected, and the two rotors are hinged at both ends of the rotor swing arm 32. The middle part of the rotor swing arm 32 is hinged to one end of the auxiliary drive rod 33. The other end of the auxiliary drive rod is hinged to one end of the auxiliary drive rod 34 and is hinged to the adjustment slider 36 at the same time. The adjustment slider 36 is placed in a slide groove through the center point of the hinge of one end of the adjustment tooth arm 35 on the auxiliary bracket 28. The other end of the adjustment tooth arm is toothed in an adjustment gear 38. The adjustment gear 38 is driven by an adjustment stepping motor 37. The other end of the auxiliary drive rod 34 is hinged to the lower end of the auxiliary insertion swing arm 39. The middle part of the auxiliary insertion swing arm is hinged to the auxiliary bracket via a rotating shaft. The upper ends of the two auxiliary insertion swing arms 39 on the same side are connected to an auxiliary spring plate 40 (refer to Figure 6-7 ), the cross section of the auxiliary spring plate is an arc-shaped structure with the arc opening facing downward.

[0040] The lifting base is provided with a corresponding transmission positioning sensor 13 to locate the horizontal and vertical positions of the thick acrylic plate transmitted to the lifting roller, corresponding to the positions of the auxiliary spring plates connected to the lower elastic auxiliary devices arranged horizontally and vertically.

[0041] The outer frame 2 is covered on the inner bracket 1, and a transverse disassembly device is provided on the transverse beam of the outer frame. The transverse disassembly device includes a transverse drive motor 15, a transverse drive gear set 16, a transverse drive chain 17, a transverse sprocket seat 18, and a transverse drive slider 19. A transverse drive motor 15 is longitudinally provided on a transverse beam in the longitudinal middle position of the outer frame 2. The transverse drive motor drives the transverse drive gear set 16. The two ends of the above-mentioned transverse beam respectively support two transverse sprocket seats 18. The two mutually meshing gears of the transverse drive gear set are respectively connected to the two transverse sprocket seats on the same side of the gears through two transverse drive chains 17. The two transverse drive sliders 19 are respectively penetrated or connected to the two transverse drive chains and guided to penetrate the above-mentioned transverse beam. The bottom ends of the two transverse drive sliders are connected to the disassembly scraper device.

[0042] A longitudinal disassembly device is provided on the longitudinal beam of the outer frame 2. The structure of the longitudinal disassembly device can refer to the transverse disassembly device provided below the longitudinal beam. The structure adopted in this embodiment includes a longitudinal cylinder 43 and a longitudinal drive slider 44. Longitudinal cylinders 43 are provided on both sides of the lower part of a longitudinal beam in the longitudinal middle position of the outer frame. The piston rod ends of the two longitudinal cylinders are connected to two longitudinal drive sliders 44 back to back. The longitudinal drive slider 44 is slidably hung on the lower part of the above-mentioned longitudinal beam through a track, and the bottom end of the longitudinal drive slider is also connected to a disassembly scraper device.

[0043] Reference Figure 5 、 6 , 10, 11, in this embodiment, the upper disassembly scraper device includes a scraper body 20, a scraper rotating cylinder 21, a scraper rotating shaft 22, a first-level air valve 23, a first-level airbag 24, a second-level air valve 25, a second-level airbag 26, and a solenoid valve 27. The side of the horizontal or vertical driving slider is connected to the scraper rotating cylinder 21, the output of the scraper rotating cylinder 21 is connected to the bevel gear set 45, and the output of the bevel gear set 45 is connected to the horizontal scraper rotating shaft 22. The scraper body 20 is connected to the scraper rotating shaft 22 or is arranged in a rotatable state below the horizontal or vertical driving slider. The scraper body The lower outer side of 20 is connected to the first-level airbag 24, and the first-level airbag is supplied with air from the air pipe through the first-level air valve 23 on the scraper body. The cross-section of the first-level airbag 24 inflated in the direction perpendicular to the extension direction of the scraper body is a triangular structure corresponding to the inclination angle of the lower oblique fold of the clamping spring at the upper mouth of the clamp. The second-level airbag 26 is arranged in the middle or middle rear of the hypotenuse of the first-level airbag triangle and is supplied with air from the second-level air valve 25 on the scraper body through the air pipe. The cross-section of the second-level airbag inflated in the direction perpendicular to the extension direction of the scraper body is spherical. The first and second-level air valves are respectively connected to the solenoid valve 27 for controlling on and off (refer to Figure 10 、 11 ); A pressure sensor 41 is provided in the primary and secondary airbags or before their respective air valves.

[0044] An auxiliary positioning sensor 14 is provided at the upper end of the auxiliary bracket behind the auxiliary insertion swing arm for sensing the movement of the corresponding scraper body.

[0045] The operating process of the automatic unloading mechanism of this embodiment is as follows:

[0046] (1) Feeding: The thick integral acrylic sheet is longitudinally positioned on the conveyor belt and then fed into the corresponding conveyor device. It is supported on the conveyor rollers of multiple conveyor rollers. The lateral positioning of the feeding position is controlled by the auxiliary positioning sensor through the conveyor belt. After the lateral positioning on the conveyor device;

[0047] (3) Suction and fixation: Control the lifting drive motor to drive the vertical reversing reducer to output in four directions through the horizontal horizontal and vertical four output shafts, and the worm gear of the worm gear group on one side is engaged with the worm gear, and the worm gear drives the lifting frame to rise vertically through the spiral connection. The lifting frame is sucked by the vacuum suction cup through the support column to the lower end surface of the thick integral acrylic plate and lifted to fix the support;

[0048] (4) Preparation for lateral disassembly: The lateral drive motor drives the lateral drive gear set, and the two lateral drive chains on the two gears of the lateral drive gear set respectively drive the lateral drive sliders on both sides to move relative to each other to the upper side of the transversely positioned thick integral acrylic plate, and the auxiliary positioning sensor makes the upper disassembly scraper device below the lateral drive slider correspond to the upper inner side of the lateral side of the thick integral acrylic plate; the scraper rotating cylinder drives the scraper body to rotate outward horizontally to the upper side of the fixture mounting plate through the scraper rotating shaft, and controls the lifting drive motor to slightly lift the thick integral acrylic plate, and the upper end surface of the thick integral acrylic plate squeezes the clamping spring, and the lower end of the thick integral acrylic plate and the lower support plate leave an auxiliary elastic gap of 54 (such as Figure 10 When different sizes of fixtures are used for thick-type acrylic panels of different thicknesses and the length of the lower support plate changes, the stepper motor is adjusted to drive the adjustment arm to rotate through the adjustment gear engagement, and the adjustment slider of the auxiliary drive rod and the second rod hinged on the adjustment arm is controlled to change the initial horizontal movement in the adjustment slot on the adjustment arm into an inclined movement, so that the initial rotation position of the auxiliary insertion swing arm changes when the auxiliary drive rod and the second rod are linked (see Figures 8 to 9 The auxiliary insertion swing arm in the initial horizontal position is rotated from the inside to the outside of the clamp to adjust the position of the auxiliary spring relative to the clamp. Figure 8 The distance between the middle auxiliary spring and the auxiliary elastic gap is the largest. Figure 9The distance between the middle auxiliary spring and the auxiliary elastic gap is reduced to meet the insertion requirements when the length of the lower acrylic plate is reduced when the clamp is clamped on the lower support plate. When the auxiliary drive motor output is connected to the auxiliary conjugate cam and the rotor swing arm drives the auxiliary drive rod and the second rod to drive the auxiliary insertion swing arm around the middle auxiliary insertion rotation axis to drive the auxiliary spring at its upper end to insert into the auxiliary elastic gap, the horizontal insertion depth is controlled not to exceed 2 / 3 of the length of the lower support plate; after the auxiliary spring is inserted, the lifting drive motor returns to step (3) to attract and fix the height, and one end of the auxiliary spring is elastically deformed and pressed between the lower acrylic plate and the lower support plate, and the outer end of the auxiliary spring is positioned and pressed by the auxiliary insertion swing arm;

[0049] (5) Horizontal disassembly operation: The scraper rotating cylinder drives the scraper body to rotate vertically downward through the scraper rotating shaft. The electromagnetic valve controls the first-level air valve to supply air to the first-level airbag, so that the first-level airbag is formed into a triangular structure facing the clamp. The scraper body is driven by the horizontal driving slider to make the upper-level airbag fit the oblique folding edge of the clamping spring. The pressure of the first-level airbag changes after being pressurized. The pressure sensor connected to it controls the second-level air valve through the electromagnetic valve to supply air to the second-level airbag through the air pipe. The spherical second-level airbag is formed perpendicular to the inclined folding edge. When the scraper body moves forward horizontally outward, the oblique folding edge of the clamping spring (such as Figure 11 ), combined with the elastic force of the auxiliary spring acting on the lower support plate, the fixture is quickly disassembled from the lateral side of the thick integral acrylic plate and falls into the fixture collection slot;

[0050] (6) Preparation and operation for longitudinal disassembly: The longitudinal driving slider is driven by the longitudinal bidirectional coaxial cylinder to move relatively to the top of the longitudinally positioned thick integral acrylic plate, so that the upper disassembly scraper device below the longitudinal driving slider corresponds to the upper inner side of the longitudinal side of the thick integral acrylic plate; the subsequent operation steps are the same as those in steps (4) and (5), and the fixture is quickly disassembled from the longitudinal side of the thick integral acrylic plate and falls into the fixture collection tank.

Claims

1. An automatic clamping mechanism, characterized in that: It includes an inner bracket and an outer frame. A conveying device is provided on the top of the inner bracket. The outer frame is higher than the conveying device and is covered on the inner bracket. A lifting and positioning device capable of vertical lifting is provided inside the inner bracket. The lifting and positioning device comprises a lifting base, a lifting drive motor, a lifting frame, a supporting column, a vacuum suction cup, a vertical reversing reducer, and a worm gear group. The lifting drive motor is arranged on the lifting base, the lifting drive motor is vertically connected to the vertical reversing reducer, and a group of worm gear groups are connected to the four horizontal and vertical output shafts of the vertical reversing reducer. The worm gear of the worm gear group is connected to the output shaft, and the worm is vertically arranged and spirally connected to the lifting frame. A plurality of supporting columns are arranged in an array on the lifting frame, and a vacuum suction cup is arranged on the supporting columns; The outer frame is provided with a transverse disassembly device and a longitudinal disassembly device, the longitudinal disassembly device includes a longitudinal bidirectional coaxial cylinder, a longitudinal driving slider, and an upper disassembly scraper device. A longitudinal bidirectional coaxial cylinder is provided in the middle of the lower part of a longitudinal beam in the longitudinal middle position of the outer frame, and the two back-to-back piston rod ends of the longitudinal bidirectional coaxial cylinder are respectively connected to two longitudinal driving sliders, the longitudinal driving slider is slidably hung on the lower part of the above-mentioned longitudinal beam through a track, and the bottom end of the longitudinal driving slider is also connected to the upper disassembly scraper device; the transverse disassembly device includes a transverse driving motor, a transverse driving gear set, a transverse driving chain, a transverse sprocket seat, a transverse driving slider, an upper disassembly scraper The device comprises a transverse driving motor longitudinally arranged on a transverse beam at the longitudinal middle position of the outer frame, the transverse driving motor drives a transverse driving gear set, the two ends of the above-mentioned transverse beam respectively support two transverse sprocket seats, the two mutually meshing gears of the transverse driving gear set are respectively connected to the two transverse sprocket seats on the same side of the gears through two transverse driving chains, the two transverse driving sliders are respectively penetrated or connected to the two transverse driving chains and guided to penetrate the above-mentioned transverse beam, the bottom ends of the two transverse driving sliders are connected to the upper disassembly scraper device; a lower elastic auxiliary device is correspondingly arranged below each upper disassembly scraper device, and the lower elastic auxiliary device is arranged on the lifting and positioning device; The upper disassembly scraper device comprises a scraper body, a primary air valve, a primary air bag, a secondary air valve, and a secondary air bag. The scraper body can be rotatably connected to the bottom of the transverse driving slider via a scraper rotating shaft. A scraper rotating cylinder is provided on the transverse driving slider to drive and connect the scraper rotating shaft. The lower outer side of the scraper body is connected to the primary air bag. The primary air bag is supplied with air externally by an air pipe through the primary air valve on the scraper body. The cross section of the primary air bag inflated perpendicular to the extension direction of the scraper body presents a triangular structure corresponding to the inclination angle of the clamping spring on the upper opening of the clamp. The secondary air bag is provided in the middle or middle rear of the hypotenuse of the triangle of the primary air bag and is supplied with air externally via the air pipe through the secondary air valve on the scraper body. The cross section of the secondary air bag inflated perpendicular to the extension direction of the scraper body presents a spherical shape. The primary and secondary air valves are respectively connected to electromagnetic valves for controlling on and off. The lower elastic auxiliary device includes an auxiliary bracket, an auxiliary drive motor, an auxiliary conjugate cam group, an auxiliary drive rod, an auxiliary drive rod, an adjustment tooth arm, an adjustment slider, an adjustment stepper motor, an adjustment gear, an auxiliary insertion swing arm, and an auxiliary spring plate. The auxiliary drive motor and the adjustment stepper motor are arranged on the lifting frame. The auxiliary drive motor outputs outward to connect the auxiliary conjugate cam. Two rotors are respectively arranged on the two cam pieces of the auxiliary conjugate cam group. The two rotors are respectively hinged at both ends of the rotor swing arm. The middle part of the rotor swing arm is hinged to one end of the auxiliary drive rod. The other end of the auxiliary drive rod is hinged to the One end is hinged to one end of the auxiliary driving two rods and is hinged to the adjusting slider at the same time. One end of the adjusting tooth arm is toothed in meshing with the adjusting gear. The adjusting gear is driven by the adjusting stepping motor. The other end of the adjusting tooth arm is rotated and connected to the auxiliary bracket. The adjusting tooth arm is provided with an adjusting slide groove passing through its rotating connection point on the auxiliary bracket. The adjusting slider is slidably placed in the adjusting slide groove. The other end of the auxiliary driving two rods is hinged to the lower end of the auxiliary insertion swing arm. The middle part of the auxiliary insertion swing arm is hinged to the auxiliary bracket via a rotating shaft. The upper end of the auxiliary insertion swing arm is connected to an auxiliary spring plate. The cross section of the auxiliary spring plate is an arc structure with the arc opening facing downward. The inner bracket or the outer frame is provided with a transmission positioning sensor corresponding to the periphery of the acrylic plate structure of the conveyor belt clamp on the transmission device, and the inner bracket or the outer frame is provided with an auxiliary positioning sensor corresponding to the auxiliary insertion rotating shaft; A pressure sensor is arranged between the first-stage airbag, the second-stage airbag and their respective air valves; The conveying device comprises a conveying roller, a conveying roller support seat, a conveying roller, and a conveying drive motor. A plurality of conveying roller support seats are arranged opposite to each other on both sides of the top of the inner bracket. Two opposite conveying roller support seats are rolled and connected to support the two ends of the conveying roller. A plurality of conveying rollers are evenly distributed and connected to the conveying roller. One side of the conveying roller passes through the conveying roller support seat and is connected to an external conveying drive gear. The conveying drive gears on one side of the plurality of conveying rollers are externally wound with a toothed chain. Any conveying roller is connected to a conveying drive motor arranged on the outer side of the inner bracket. The transmission positioning sensor includes a transverse transmission positioning sensor and a longitudinal transmission positioning sensor; the transmission positioning sensor includes a transverse auxiliary positioning sensor and a longitudinal auxiliary positioning sensor.

2. The automatic clamping mechanism according to claim 1, characterized in that: The auxiliary spring plate is externally vulcanized and coated with a rubber layer.

3. The automatic clamping mechanism according to claim 1, characterized in that: The scraper body is in a V-shaped structure opening outwards.

4. The automatic clamping mechanism according to claim 1, characterized in that: The inner sides of the four sides of the outer frame are provided with fixture collecting grooves.

5. The process for disassembling acrylic plates by an automatic clamping mechanism according to claim 1, characterized in that: The following steps are involved: (1) Feeding: Use multiple clamps to install each of the four sides of the upper and lower acrylic plates. The clamps include a column plate, a mounting plate, a clamping spring, a rubber strip support plate, and a lower support plate. The mounting plate, the rubber strip support plate, and the lower support plate are vertically arranged on the upper, middle, and lower sides of the column plate, respectively. The clamping spring is installed on the mounting plate. The clamping spring is folded obliquely outward and downward, and then folded horizontally and pressed onto the upper acrylic plate. The distance between the horizontal folded edge and the rubber strip support plate is less than the thickness of the upper acrylic plate, and the distance between the rubber strip support plate and the lower support plate is The thickness of the acrylic plate, the rubber strip support plate is pressed against the rubber strip between the upper and lower acrylic plates; glue is poured between the upper and lower acrylic plates to compound and solidify them into a thick integral acrylic plate; the thick integral acrylic plate is fed into the corresponding conveying device of the conveyor belt, supported on the conveying rollers of multiple conveying rollers, and the lateral positioning of the feeding position is controlled by the lateral auxiliary positioning sensor through the conveyor belt. After the lateral positioning, it is sent to the conveying device as a whole, and the longitudinal positioning of the feeding position is controlled by the longitudinal auxiliary positioning sensor; (3) Suction and fixation: Control the lifting drive motor to drive the vertical reversing reducer to output in four directions through the horizontal horizontal and vertical four output shafts. The worm gear of the worm gear group on one side is engaged with the worm gear. The worm gear drives the lifting frame to rise vertically through the spiral rotation. The lifting frame is sucked by the vacuum suction cup through the support column to the lower end surface of the thick integral acrylic plate and lifted to fix the support; (4) Preparation for lateral disassembly: The lateral drive motor drives the lateral drive gear set. The two lateral drive chains on the two gears of the lateral drive gear set respectively drive the lateral drive sliders on both sides to move relative to each other to the upper side of the transversely positioned thick integral acrylic plate. The auxiliary positioning sensor makes the upper disassembly scraper device under the lateral drive slider correspond to the upper inner side of the lateral side of the thick integral acrylic plate; the scraper rotating cylinder drives the scraper body to rotate outward horizontally to the upper side of the fixture mounting plate through the scraper rotating shaft, and controls the lifting drive motor to slightly lift the thick integral acrylic plate. The upper end surface of the thick integral acrylic plate squeezes the clamping spring, and an auxiliary elastic gap is left between the lower end of the thick integral acrylic plate and the lower support plate; when different sizes of fixtures are used for thick integral acrylic plates of different thicknesses and the length of the lower support plate changes, the stepper motor is adjusted to drive the adjustment arm to rotate through the adjustment gear meshing. , control the auxiliary drive one rod and the second rod hinged adjustment slider to change the initial horizontal movement in the adjustment slide groove on the adjustment tooth arm into an inclined movement, so that the auxiliary insertion swing arm changes the initial rotation position when the auxiliary drive one rod and the second rod are linked, and the auxiliary insertion swing arm at the initial horizontal position is rotated and adjusted from the lateral inner side to the outer side of the clamp direction, thereby adjusting the position of the auxiliary spring relative to the clamp, and the auxiliary drive motor output is connected to the auxiliary conjugate cam through the two rotors through the rotor swing arm to drive the auxiliary drive one rod and the second rod to drive the auxiliary insertion swing arm around the central auxiliary insertion rotation axis to drive the auxiliary spring at its upper end to insert into the auxiliary elastic gap, and control the insertion horizontal depth not to exceed 2 / 3 of the length of the lower support plate; after the auxiliary spring is inserted, the lifting drive motor returns to step (3) to attract the fixed height, and the auxiliary spring is elastically deformed and pressed between the lower acrylic plate and the lower support plate; (5) Horizontal disassembly operation: The scraper rotating cylinder drives the scraper body to rotate vertically downward through the scraper rotating shaft. The solenoid valve controls the first-level air valve to supply air to the first-level airbag, so that the first-level airbag is formed into a triangular structure facing the fixture. The scraper body is driven by the horizontal driving slider to make the upper-level airbag fit the oblique folded edge of the clamping spring. The pressure of the first-level airbag changes after being compressed. The pressure sensor connected to it controls the second-level air valve through the air pipe to supply air to the second-level airbag. The spherical second-level airbag is formed perpendicular to the inclined folded edge. When the scraper body moves forward horizontally outward, the oblique folded edge of the clamping spring is instantly and quickly pushed. Combined with the elastic force of the auxiliary spring on the lower support plate, the fixture is quickly disassembled from the lateral side of the thick integral acrylic plate and falls into the fixture collection tank; (6) Longitudinal disassembly preparation and operation: The longitudinal bidirectional coaxial cylinder drives the longitudinal driving slider to move relatively to the top of the longitudinally positioned thick integral acrylic plate, so that the upper disassembly scraper device below the longitudinal driving slider corresponds to the upper inner side of the longitudinal side of the thick integral acrylic plate; the subsequent operation steps are the same as those in steps (4) and (5), and the fixture is quickly disassembled from the longitudinal side of the thick integral acrylic plate and falls into the fixture collection tank.

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