Efficient edge grinding machine for photovoltaic glass

Abstract

The invention discloses an efficient edge grinding machine for photovoltaic glass. The efficient edge grinding machine comprises a base table, a fixed material guiding unit, a movable material guiding unit, a first grinding unit, a second grinding unit, two bracket units and a translation driving unit used for driving the second grinding unit to translate. The two bracket units are located between the first polishing unit and the second polishing unit. According to the edge grinding machine, width adjustment can be achieved, so that glass with the large width can be ground, glass with the small width can also be ground, and the edge grinding machine adapts to grinding of photovoltaic glass with different widths. And the positions of the bracket unit in different states can be detected, so that normal operation of the edge grinding machine is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of edge grinding machines, and more specifically, to a photovoltaic glass high-efficiency edge grinding machine. Background Art

[0002] In the glass processing industry, edge grinding machine is a key processing equipment, which is mainly used to grind and polish the edge of glass. Double edge grinding machine can grind both sides of the glass at the same time, which is more efficient.

[0003] Existing edge grinding machines are often unable to effectively grind wider glass, or require multiple adjustments to the position of the glass to complete the grinding, which greatly reduces processing efficiency. For some larger glasses, a bracket needs to be set in the middle to support the glass, avoid damage to the glass, and prevent the middle of the glass from sinking due to gravity. However, existing glass edge grinding machines often only have one bracket, so when facing wider glass, their own weight will increase accordingly. At this time, if the edge grinding machine only has one bracket, then the bracket may be unable to bear the weight of the entire glass, causing the glass to shake or sink during processing. This unstable state not only affects the accuracy and quality of grinding, but also increases the risk of accidents. Summary of the invention

[0004] The present invention aims to overcome the defects of the prior art and provide a photovoltaic glass high-efficiency edge grinding machine.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a glass efficient edge grinding machine, comprising a base, a fixed material guide unit, a movable material guide unit, a first grinding unit, a second grinding unit, two bracket units and a translation driving unit for driving the second grinding unit to translate; the fixed material guide unit and the movable material guide unit are both fixedly connected to the base; the fixed material guide unit and the movable material guide unit both comprise a first mounting frame and a first conveyor belt unit mounted on the first mounting frame, the fixed material guide unit further comprises a row of fixed wheels, the movable material guide unit further comprises a slide rail, and a first conveyor belt unit connected to the slide rail. A slide seat matched with a rail, an electric push rod for driving the slide seat to translate, and a row of movable wheels installed on the slide seat; the first grinding unit and the second grinding unit each include a second mounting frame, a coolant cooling unit installed on the second mounting frame, a second upper conveyor belt unit installed on the second mounting frame, a second lower conveyor belt unit installed on the second mounting frame, a plurality of grinding heads, and a grinding head driving unit for driving the plurality of grinding heads; the first mounting frame of the movable material guiding unit and the second mounting frame of the second grinding unit are fixedly connected; the two bracket units are located between the first grinding unit and the second grinding unit.

[0006] Furthermore, the translation drive unit is an electric push rod.

[0007] Furthermore, the first mounting frame of the movable material guiding unit and the second mounting frame of the second grinding unit are connected via a connecting frame.

[0008] Thus, the first mounting frame of the movable material guiding unit and the second mounting frame of the second grinding unit are fixedly connected.

[0009] Furthermore, the base is provided with a first horizontal rail, and the second mounting frame of the second grinding unit can translate along the first horizontal rail; the bracket unit includes a movable crossbeam, a limiting sleeve connected to the movable crossbeam, a plurality of first support units and a plurality of second support units, and the second mounting frames of the first grinding unit and the second grinding unit are both fixedly connected with a limiting guide rod cooperating with the limiting sleeve, and the limiting sleeve is provided with a spring, one end of the spring is connected to the second mounting frame, and the other end is connected to the movable crossbeam.

[0010] Therefore, the bracket unit can support the glass, and due to the springs on both sides, the two groups of bracket units can always be located in the middle of the first polishing unit and the second polishing unit.

[0011] The cam is connected to the second support rod and the second support rod is connected with the cam by the spring, and the cam is connected with the first support rod to contact the cam. A driving motor, which drives a screw rod that cooperates with the threaded hole; the number of first support units at the first bracket unit is equal to the number of second support units at the second bracket unit, the number of first support units at the second bracket unit is equal to the number of second support units at the first bracket unit, each first support unit at the first bracket unit faces a second support unit at the second bracket unit, and each second support unit at the first bracket unit faces a first support unit at the second bracket unit; when the movable crossbeam of the first bracket unit and the movable crossbeam of the second bracket unit abut against each other, all the first guide wheels at the first bracket unit and all the first guide wheels at the second bracket unit are distributed in a straight line and the top ends are at the same horizontal height, and the ends of all the abutment rods at the first bracket unit and the second bracket unit abut against the corresponding groove parts, so that the highest points of all the second guide wheels are at the same horizontal height and lower than the top ends of the first guide wheels.

[0012] Furthermore, when there is no external force, all the first guide wheels and all the second guide wheels at the same bracket unit are in a vertical state.

[0013] Further, when the movable crossbeam of the first bracket unit and the movable crossbeam of the second bracket unit abut against each other, all the first guide wheels at the first bracket unit and all the first guide wheels at the second bracket unit are in a vertical state.

[0014] Furthermore, when the movable crossbeam of the first bracket unit and the movable crossbeam of the second bracket unit abut against each other, the rotating rod at the first bracket unit approaches the direction away from the second bracket unit, and the angle with the vertical direction is 30-40 degrees; the rotating rod at the second bracket unit approaches the direction away from the first bracket unit, and the angle with the vertical direction is 30-40 degrees.

[0015] Preferably, when the movable crossbeam of the first bracket unit and the movable crossbeam of the second bracket unit abut against each other, the rotating rod at the first bracket unit approaches the direction away from the second bracket unit, and the angle with the vertical direction is 30 degrees; the rotating rod at the second bracket unit approaches the direction away from the first bracket unit, and the angle with the vertical direction is 30 degrees.

[0016] Furthermore, when the interval between the movable crossbeam of the first bracket unit and the movable crossbeam of the second bracket unit is greater than 50 cm, the bottom end of the rotating rod of the second support unit abuts against the top end of the second vertical rod, and the rotating rod at the first bracket unit is inclined toward the direction close to the second bracket unit, and the angle with the vertical direction is 5-10 degrees; the rotating rod at the second bracket unit is inclined toward the direction close to the first bracket unit, and the angle with the vertical direction is 5-10 degrees.

[0017] Preferably, when all the abutment rods do not abut the corresponding groove portions, the bottom end of the rotating rod of the second support unit abuts against the top end of the second vertical rod, and the rotating rod at the first bracket unit is inclined toward the direction close to the second bracket unit, and the angle with the vertical direction is 5-10 degrees; the rotating rod at the second bracket unit is inclined toward the direction close to the first bracket unit, and the angle with the vertical direction is 5-10 degrees.

[0018] Preferably, when there is no external force, the bottom end of the rotating rod of the second support unit abuts against the top end of the second vertical rod, the rotating rod at the first bracket unit is tilted toward the second bracket unit, and the angle with the vertical direction is 10 degrees; the rotating rod at the second bracket unit is tilted toward the first bracket unit, and the angle with the vertical direction is 10 degrees.

[0019] Therefore, when the second guide wheel is subjected to downward pressure from the glass, the rotating rod is less likely to be deformed.

[0020] Furthermore, the bracket unit also includes a mounting vertical plate fixed to the movable crossbeam, a rotating cylinder installed on the mounting vertical plate, a rotating arm driven by the rotating cylinder, and a laser ranging unit installed on the rotating arm; the end of the abutment rod has a detection through hole; when the movable crossbeam of the first bracket unit and the movable crossbeam of the second bracket unit abut against each other, all the detection through holes of the abutment rods at the first bracket unit and all the detection through holes of the abutment rods at the second bracket unit are distributed in a straight line, and the measuring light of the two laser ranging units can pass through all the detection through holes of the abutment rods at the first bracket unit and all the detection through holes of the abutment rods at the second bracket unit; when all the abutment rods of the bracket unit do not abut the corresponding groove portions, the measuring light of the laser ranging unit at the bracket unit can pass through all the detection through holes of the abutment rods at the bracket unit.

[0021] Thereby, the position of the bracket unit in different states can be detected.

[0022] Furthermore, the number of the first cross rail and the number of the second cross rail are both two.

[0023] Furthermore, each movable crossbeam is connected to two limiting sleeves; and the screw rods are provided with two.

[0024] Beneficial effects:

[0025] 1. The edge grinding machine of the present application can realize the grinding of photovoltaic glass with a larger width, and the grinding effect is good.

[0026] 2. The edge grinding machine of the present application can achieve width adjustment, so that it can realize the grinding of glass with a larger width as well as the grinding of glass with a smaller width, thereby adapting to the grinding of photovoltaic glasses of different widths.

[0027] 3. The edge grinding machine of the present application can detect the position of the bracket unit in different states, thereby ensuring the normal operation of the edge grinding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a first-person perspective diagram of grinding wider glass;

[0029] Figure 2 This is an enlarged view of area 1A;

[0030] Figure 3 This is an enlarged view of area 1B;

[0031] Figure 4 A schematic diagram of the second viewing angle when grinding glass with a larger width;

[0032] Figure 5 This is an enlarged view of area 2A;

[0033] Figure 6 This is an enlarged view of area 2B;

[0034] Figure 7 This is a first-person perspective diagram of grinding glass with a smaller width;

[0035] Figure 8 This is an enlarged view of the 3A area;

[0036] Fig. 9 This is an enlarged view of area 3B;

[0037] Fig.10 A schematic diagram of a second viewing angle when grinding glass with a smaller width;

[0038] Fig.11 This is an enlarged view of area 4A.

[0039] Description of reference numerals: base 1; first cross rail 1.1; fixed material guide unit 2; first mounting frame 2.1; first conveyor belt unit 2.2; fixed support wheel 2.3; movable material guide unit 3; slide rail 3.1; slide seat 3.2; electric push rod 3.3; movable support wheel 3.4; first grinding unit 4; second mounting frame 4.1; second upper conveyor belt unit 4.2; second lower conveyor belt unit 4.3; limiting guide rod 4.4; second grinding unit 5; bracket unit 6; movable cross beam 6.1; limiting sleeve 6.2; spring 6.3; second transverse rail 6.4; mounting vertical plate 6.5; rotating cylinder 6.6; rotating arm 6.7; laser distance measuring unit 6.8; first supporting unit 7; first lower vertical rod 7.1; horizontal connecting rod 7.2; first upper vertical rod 7.3; groove portion 7.3.1; first guide wheel 7.4; second supporting unit 8; second vertical rod 8.1; rotating rod 8.2; abutting rod 8.3; detection through hole 8.3.1; second guide wheel 8.4; driving motor 9; screw rod 9.1; translation driving unit 10; connecting frame 11. DETAILED DESCRIPTION

[0040] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0041] The present invention provides Figure 1-11The photovoltaic glass high-efficiency edge grinding machine shown in the figure includes a base 1, a fixed material guide unit 2, a movable material guide unit 3, a first grinding unit 4, a second grinding unit 5, two bracket units 6 and a translation drive unit 10 for driving the second grinding unit 5 to translate; the fixed material guide unit 2 and the movable material guide unit 3 are both fixedly connected to the base 1; the fixed material guide unit 2 and the movable material guide unit 3 both include a first mounting frame 2.1 and a first conveyor belt unit 2.2 installed on the first mounting frame 2.1, the fixed material guide unit 2 also includes a row of fixed wheels 2.3, the movable material guide unit 3 also includes a slide rail 3.1, a slide seat 3.2 matched with the slide rail 3.1, and a first conveyor belt unit 2.2 for driving An electric push rod 3.3 for translation of the slide 3.2 and a row of movable wheels 3.4 installed on the slide 3.2; the first grinding unit 4 and the second grinding unit 5 each include a second mounting frame 4.1, a coolant cooling unit installed on the second mounting frame 4.1, a second upper conveyor belt unit 4.2 installed on the second mounting frame 4.1, a second lower conveyor belt unit 4.3 installed on the second mounting frame 4.1, a plurality of grinding heads and a grinding head driving unit for driving the plurality of grinding heads; the first mounting frame 2.1 of the movable material guiding unit 3 and the second mounting frame 4.1 of the second grinding unit 5 are fixedly connected; two bracket units 6 are located between the first grinding unit 4 and the second grinding unit 5. The base 1 is provided with a first transverse rail 1.1, and the second mounting frame 4.1 of the second grinding unit 5 can translate along the first transverse rail 1.1; the bracket unit 6 includes a movable crossbeam 6.1, a limiting sleeve 6.2 connected to the movable crossbeam 6.1, a plurality of first support units 7 and a plurality of second support units 8, and the second mounting frames 4.1 of the first grinding unit 4 and the second grinding unit 5 are both fixedly connected with a limiting guide rod 4.4 cooperating with the limiting sleeve 6.2, and the limiting sleeve 6.2 is covered with a spring 6.3, one end of the spring 6.3 is connected to the second mounting frame 4.1, and the other end is connected to the movable crossbeam 6.1.

[0042] A plurality of first support units 7 and a plurality of second support units 8 are alternately arranged, wherein the first support unit 7 comprises a first lower vertical rod 7.1, a horizontal connecting rod 7.2 connected to the first lower vertical rod 7.1, a first upper vertical rod 7.3 connected to the horizontal connecting rod 7.2, and a first guide wheel 7.4 installed at the top of the first upper vertical rod 7.3, and the first upper vertical rod 7.3 has a groove portion 7.3.1; the second support unit 8 comprises a second vertical rod 8.1, a rotating rod 8.2 hinged to the second vertical rod 8.1 through an elastic reset hinge component, and a first guide wheel 7.4 fixed to the rotating rod 8.2. The abutment rod 8.3 connected thereto and the second guide wheel 8.4 installed at the top of the rotating rod 8.2, when there is no external force, the tops of all the first guide wheels 7.4 and all the second guide wheels 8.4 at the same bracket unit are at the same horizontal height and are distributed in a row; the movable crossbeam 6.1 has a first slide groove matched with the first cross rail 1.1, the two bracket units are respectively the first bracket unit and the second bracket unit, the first bracket unit has a second slide groove and a threaded hole, the second bracket unit is connected to the second cross rail 6.4 matched with the second slide groove, the first A driving motor 9 is also installed at the second bracket unit, and the driving motor 9 drives a screw rod 9.1 that cooperates with the threaded hole; the number of first support units 7 at the first bracket unit is equal to the number of second support units 8 at the second bracket unit, and the number of first support units 7 at the second bracket unit is equal to the number of second support units 8 at the first bracket unit, each first support unit 7 at the first bracket unit faces a second support unit 8 at the second bracket unit, and each second support unit 8 at the first bracket unit faces a first support unit 7 at the second bracket unit; when the movable crossbeam 6.1 of the first bracket unit and the movable crossbeam 6.1 of the second bracket unit abut against each other, all the first guide wheels 7.4 at the first bracket unit and all the first guide wheels 7.4 at the second bracket unit are distributed in a straight line and the top ends are at the same horizontal height, and the ends of all the abutment rods 8.3 at the first bracket unit and all the abutment rods 8.3 at the second bracket unit abut against the corresponding groove parts 7.3.1, so that the highest points of all the second guide wheels 8.4 are at the same horizontal height and lower than the top ends of the first guide wheels 7.4. The number of the first cross rail 1.1 and the number of the second cross rail 6.4 are both two. Two limiting sleeves 6.2 are connected to each movable cross beam 6.1; and there are two screw rods 9.1.

[0043] When the movable crossbeam 6.1 of the first bracket unit and the movable crossbeam 6.1 of the second bracket unit abut against each other, the rotating rod 8.2 at the first bracket unit approaches the direction away from the second bracket unit, and the angle with the vertical direction is 30-40 degrees; the rotating rod 8.2 at the second bracket unit approaches the direction away from the first bracket unit, and the angle with the vertical direction is 30-40 degrees. When the interval between the movable crossbeam of the first bracket unit and the movable crossbeam of the second bracket unit is greater than 50cm, the bottom end of the rotating rod 8.2 of the second support unit abuts against the top end of the second vertical rod 8.1, and the rotating rod 8.2 at the first bracket unit tilts toward the direction close to the second bracket unit, and the angle with the vertical direction is 5-10 degrees; the rotating rod 8.2 at the second bracket unit tilts toward the direction close to the first bracket unit, and the angle with the vertical direction is 5-10 degrees. The bracket unit also includes a mounting vertical plate 6.5 fixed to the movable crossbeam, a rotating cylinder 6.6 mounted on the mounting vertical plate 6.5, a rotating arm 6.7 driven by the rotating cylinder 6.6, and a laser distance measuring unit 6.8 mounted on the rotating arm 6.7; the end of the abutment rod 8.3 has a detection through hole 8.3.1; when the movable crossbeam 6.1 of the first bracket unit and the movable crossbeam 6.1 of the second bracket unit abut against each other, all the detection through holes of the abutment rods at the first bracket unit and all the detection through holes of the abutment rods at the second bracket unit are distributed in a straight line, and the measurement lights of the two laser distance measuring units 6.8 can pass through all the detection through holes of the abutment rods at the first bracket unit and all the detection through holes of the abutment rods at the second bracket unit; when all the abutment rods 8.3 of the bracket unit do not abut the corresponding groove portions 7.3.1, the measurement lights of the laser distance measuring unit 6.8 at the bracket unit can pass through all the detection through holes of the abutment rods at the bracket unit.

[0044] Working principle: The edge grinding machine of the present application can adjust the width between the first grinding unit and the second grinding unit by driving the second grinding unit to move horizontally according to the width of the glass to be ground, so as to adapt to glass of different widths. During grinding, the glass to be ground can be loaded from between the fixed material guide unit and the movable material guide unit, and the movable material guide unit automatically moves with the second grinding unit, and when the glass passes between the fixed material guide unit and the movable material guide unit, the electric push rod will push the movable supporting wheel, so that the movable supporting wheel aligns the glass to be ground. In addition, the two groups of bracket units can support the glass. Due to the springs on both sides, the two groups of bracket units can always be in the middle of the first grinding unit and the second grinding unit. The second upper conveyor belt unit and the second lower conveyor belt unit realize the clamping and conveying of the glass, and the grinding head grinds the edge of the glass.

[0045] like Figure 1-6As shown, in the case of a large glass width, there is actually a distance between the two bracket units, so as to achieve support for the glass with a large width. Due to the two bracket units, the glass support effect is better, thereby avoiding damage to the glass or the adverse effect on polishing caused by the glass sinking due to gravity. And at this position, the laser distance measurement unit of each bracket unit can measure the distance. When the measured value is greater than the set threshold, it means that the distance measurement light has passed through all the detection holes of the bracket unit, indicating that the position of the abutment rod of the second support unit is accurate, thereby indicating that the position of the rotating rod is accurate (if the rotating rod has a small deviation, such as bending or the elastic reset hinge component is fatigued and cannot be reset normally, the measurement light will be blocked by other positions of the abutment rod, so that the measured value is less than the first set threshold; if the rotating rod has a large position deviation, thereby causing the abutment rod to have a large position deviation, although the abutment rod will not block the measurement light at this time, the large position deviation can be easily detected by the operator, so that maintenance is performed).

[0046] In addition, if Figure 8-11 As shown, when the width of the polished glass is small, two sets of bracket units are required for support, and when the two sets of bracket units are supported very close to each other, there may be a certain height error between the two side-by-side guide wheels, which may have an adverse effect on polishing. Therefore, when polishing glass with a smaller width, the driving motor is used to make the movable beams of the two bracket units abut against each other, so that each abutment rod abuts against the corresponding groove portion, so that the rotating rod rotates. In fact, the second guide wheel at the rotating rod is in an unused state, and the first guide wheels of the two bracket units form a row, thereby achieving the effect of a row of guide wheels, thereby achieving support for the glass, and avoiding the adverse effect of two rows of guide wheels on the support of small-width glass. And at this time, the two bracket units can both achieve the measurement of the detection through hole (of course, the detection in this state requires the adjustment of the position of the rotating arm by the rotating cylinder), so that if the measured value is less than the second set threshold, it means that the abutment rod has a small position deviation, so as to remind maintenance in time. In this case, only one of the laser rangefinder units needs to be used for detection. Of course, it is also possible to make both laser ranging units in a position where they can detect, but only turn on one laser ranging unit, and use the other laser ranging unit as the target to be measured. It is measured once, and then the turned-on laser ranging unit is swapped and measured again. If the measured values ​​on both sides are the same, it means that the entire bracket unit is operating normally. Otherwise, it means that a fault has occurred (the position of the abutment rod may be deviated, or the measurement of the laser ranging unit is inaccurate, etc.) and maintenance is required.

[0047] Although the present invention has been illustrated and described with respect to the preferred embodiments, it will be appreciated by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. A photovoltaic glass high-efficiency edge grinding machine, characterized in that: The present invention relates to a grinding wheel unit, wherein the grinding wheel unit is a gear mounted on the support frame of the machine and the gear is mounted on the support frame of the machine. The grinding wheel unit is a gear mounted on the support frame of the machine and the gear is mounted on the support frame of the machine. The grinding wheel unit is a gear mounted on the support frame of the machine and the gear is mounted on the support frame of the machine.

2. The photovoltaic glass high-efficiency edge grinding machine according to claim 1, characterized in that: The base is provided with a first horizontal rail, and the second mounting frame of the second grinding unit can translate along the first horizontal rail; the bracket unit includes a movable crossbeam, a limiting sleeve connected to the movable crossbeam, a plurality of first support units and a plurality of second support units, and the second mounting frames of the first grinding unit and the second grinding unit are both fixedly connected with a limiting guide rod cooperating with the limiting sleeve, and the limiting sleeve is provided with a spring, one end of the spring is connected to the second mounting frame, and the other end is connected to the movable crossbeam.

3. The photovoltaic glass high-efficiency edge grinding machine according to claim 2, characterized in that: The cam is connected to the second support frame by the second cam, and the cam is connected to the first support frame by the second cam, and the cam is connected to the first support frame by the second cam. The first bracket unit and the second bracket unit are provided with a second slide groove and a threaded hole, the second bracket unit is connected with a second cross rail matched with the second slide groove, and the second bracket unit is also installed with a driving motor, and the driving motor drives a screw matched with the threaded hole; the number of the first support units at the first bracket unit is equal to the number of the second support units at the second bracket unit, the number of the first support units at the second bracket unit is equal to the number of the second support units at the first bracket unit, each first support unit at the first bracket unit faces a second support unit at the second bracket unit, and each second support unit at the first bracket unit faces a first support unit at the second bracket unit; When the movable crossbeam of the first bracket unit and the movable crossbeam of the second bracket unit abut against each other, all the first guide wheels at the first bracket unit and all the first guide wheels at the second bracket unit are distributed in a straight line with the top ends at the same level, and the ends of all the abutment rods at the first bracket unit and all the abutment rods at the second bracket unit abut against the corresponding groove portions, so that the highest points of all the second guide wheels are at the same level and lower than the top ends of the first guide wheels.

4. The photovoltaic glass high-efficiency edge grinding machine according to claim 3, characterized in that: When the movable crossbeam of the first bracket unit and the movable crossbeam of the second bracket unit abut against each other, the rotating rod at the first bracket unit approaches the direction away from the second bracket unit, and the angle with the vertical direction is 30-40 degrees; the rotating rod at the second bracket unit approaches the direction away from the first bracket unit, and the angle with the vertical direction is 30-40 degrees.

5. The photovoltaic glass high-efficiency edge grinding machine according to claim 3, characterized in that: When the interval between the movable crossbeam of the first bracket unit and the movable crossbeam of the second bracket unit is greater than 50cm, the bottom end of the rotating rod of the second support unit abuts against the top end of the second vertical rod, and the rotating rod at the first bracket unit tilts toward the second bracket unit, and the angle with the vertical direction is 5-10 degrees; the rotating rod at the second bracket unit tilts toward the first bracket unit, and the angle with the vertical direction is 5-10 degrees.

6. The photovoltaic glass high-efficiency edge grinding machine according to claim 3, characterized in that: The bracket unit also includes a mounting vertical plate fixed to the movable crossbeam, a rotating cylinder mounted on the mounting vertical plate, a rotating arm driven by the rotating cylinder, and a laser ranging unit mounted on the rotating arm; the end of the abutment rod has a detection through hole; when the movable crossbeam of the first bracket unit and the movable crossbeam of the second bracket unit abut against each other, all the detection through holes of the abutment rods at the first bracket unit and all the detection through holes of the abutment rods at the second bracket unit are distributed in a straight line, and the measuring light of the two laser ranging units can pass through all the detection through holes of the abutment rods at the first bracket unit and all the detection through holes of the abutment rods at the second bracket unit; when all the abutment rods of the bracket unit do not abut the corresponding groove portions, the measuring light of the laser ranging unit at the bracket unit can pass through all the detection through holes of the abutment rods at the bracket unit.

7. The photovoltaic glass high-efficiency edge grinding machine according to claim 3, characterized in that: The number of the first cross rails and the number of the second cross rails are both two.

8. The photovoltaic glass high-efficiency edge grinding machine according to claim 3, characterized in that: Each movable crossbeam is connected to two limiting sleeves; the screw rods are provided with two.

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