High-efficiency grinding machine for photovoltaic glass

Abstract

The application discloses a high-efficiency edge grinding machine for photovoltaic glass, which comprises a base, 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 for driving the second grinding unit to translate; the two bracket units are located between the first grinding unit and the second grinding unit. The edge grinding machine can adjust the width, so that the grinding of the glass with a large width and the grinding of the glass with a small width can be realized, thereby adapting to the grinding of the photovoltaic glass with different widths. Moreover, the positions of the bracket units in different states can be detected, so that the normal operation of the edge grinding machine is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of edge grinding machine, more particularly, to a high-efficiency edge grinding machine for photovoltaic glass. BACKGROUND

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

[0003] The existing edge grinding machine often cannot effectively polish the glass with a larger width, or needs to adjust the position of the glass multiple times to complete the polishing, which greatly reduces the processing efficiency. For some larger glass, a bracket needs to be set in the middle to support the glass, so as to avoid damage to the glass and sinking of the middle position of the glass due to gravity. However, the existing glass edge grinding machine often only has one bracket, so when facing a glass with a larger width, the weight of the glass will also increase accordingly. At this time, if the edge grinding machine only has one bracket, the bracket may not be able to bear the weight of the entire glass, resulting in the glass shaking or sinking during the processing process. This unstable state not only affects the accuracy and quality of grinding, but also increases the risk of accidents. SUMMARY

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

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a high-efficiency edge grinding machine for glass, comprising a base, a fixed material guiding unit, a movable material guiding unit, a first polishing unit, a second polishing unit, two bracket units, and a translation driving unit for driving the second polishing unit to translate; the fixed material guiding unit and the movable material guiding unit are fixedly connected with the base; the fixed material guiding unit and the movable material guiding unit each comprise a first mounting bracket and a first conveying belt unit mounted on the first mounting bracket, the fixed material guiding unit further comprises a row of fixed leaning wheels, and the movable material guiding unit further comprises a sliding rail, a sliding seat matched with the sliding rail, an electric push rod for driving the sliding seat to translate, and a row of movable leaning wheels mounted on the sliding seat; the first polishing unit and the second polishing unit each comprise a second mounting bracket, a cooling liquid cooling unit mounted on the second mounting bracket, a second upper conveying belt unit mounted on the second mounting bracket, a second lower conveying belt unit mounted on the second mounting bracket, a plurality of polishing heads, and a grinding head driving unit for driving the plurality of polishing heads; the first mounting bracket of the movable material guiding unit and the second mounting bracket of the second polishing unit are fixedly connected; the two bracket units are located between the first polishing unit and the second polishing unit.

[0006] Further, the translation driving unit is an electric push rod.

[0007] Further, the first mounting frame of the active material guiding unit and the second mounting frame of the second polishing unit are connected through a connecting frame.

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

[0009] Further, the base station has a first horizontal rail, and the second mounting frame of the second polishing unit can translate along the first horizontal rail; the bracket unit comprises an active cross beam, a limiting sleeve connected with the active cross beam, a plurality of first supporting units and a plurality of second supporting units, the first polishing unit and the second mounting frame of the second polishing unit are both fixedly connected with a limiting guide rod matched with the limiting sleeve, the limiting sleeve is sleeved with a spring, one end of the spring is connected with the second mounting frame, and the other end of the spring is connected with the active cross beam.

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

[0011] Further, the plurality of first support units and the plurality of second support units are alternately distributed, the first support unit comprises a first lower vertical rod, a horizontal connecting rod connected with the first lower vertical rod, a first upper vertical rod connected with the horizontal connecting rod, and a first guide wheel mounted at the top end of the first upper vertical rod, and the first upper vertical rod has a groove portion at a position thereof; the second support unit comprises a second vertical rod, a rotating rod hinged with the second vertical rod through an elastic reset hinged component, an abutting rod fixedly connected with the rotating rod, and a second guide wheel mounted at the top end of the rotating rod, and the top ends of all the first guide wheels and all the second guide wheels at the same bracket unit are at the same horizontal height and are arranged in a row when no external force is applied; the movable cross beam has a first sliding groove matched with the first cross rail, two bracket units are respectively a first bracket unit and a second bracket unit, the first bracket unit has a second sliding groove and a threaded hole, the second bracket unit is connected with a second cross rail matched with the second sliding groove, and the second bracket unit is further provided with a driving motor, and the driving motor drives a lead 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 one second support unit at the second bracket unit, and each second support unit at the first bracket unit faces one first support unit at the second bracket unit; when the movable cross beam of the first bracket unit and the movable cross beam 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 arranged in a straight line and the top ends thereof are at the same horizontal height, and the ends of all the abutting rods at the first bracket unit and all the abutting 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 horizontal height and are lower than the top ends of the first guide wheels.

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

[0013] Further, 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 when the movable cross beam of the first bracket unit and the movable cross beam of the second bracket unit abut against each other.

[0014] Further, when the movable cross beam of the first bracket unit and the movable cross beam of the second bracket unit abut against each other, the rotating rod at the first bracket unit approaches in a direction away from the second bracket unit and forms an angle of 30-40 degrees with the vertical direction, and the rotating rod at the second bracket unit approaches in a direction away from the first bracket unit and forms an angle of 30-40 degrees with the vertical direction.

[0015] Preferably, when the movable cross beams of the first and second bracket units abut each other, the rotating rod at the first bracket unit leans toward the second bracket unit at an angle of 30 degrees with the vertical direction, and the rotating rod at the second bracket unit leans toward the first bracket unit at an angle of 30 degrees with the vertical direction.

[0016] Further, when the movable cross beams of the first and second bracket units are spaced apart by more than 50 cm, the bottom end of the rotating rod of the second support unit abuts the top end of the second vertical rod, the rotating rod at the first bracket unit leans toward the second bracket unit at an angle of 5-10 degrees with the vertical direction, and the rotating rod at the second bracket unit leans toward the first bracket unit at an angle of 5-10 degrees with the vertical direction.

[0017] Preferably, when all the abutting rods do not abut the corresponding groove portions, the bottom end of the rotating rod of the second support unit abuts the top end of the second vertical rod, the rotating rod at the first bracket unit leans toward the second bracket unit at an angle of 5-10 degrees with the vertical direction, and the rotating rod at the second bracket unit leans toward the first bracket unit at an angle of 5-10 degrees with the vertical direction.

[0018] Preferably, in the absence of external force, the bottom end of the rotating rod of the second support unit abuts the top end of the second vertical rod, the rotating rod at the first bracket unit leans toward the second bracket unit at an angle of 10 degrees with the vertical direction, and the rotating rod at the second bracket unit leans toward the first bracket unit at an angle of 10 degrees with the vertical direction.

[0019] Thus, the rotating rod is less likely to deform when the second guide wheel is subjected to the downward pressure of the glass.

[0020] Further, the bracket unit further comprises a mounting vertical plate fixed to the movable cross beam, a rotary cylinder mounted to the mounting vertical plate, a rotary arm driven by the rotary cylinder, and a laser ranging unit mounted to the rotary arm; the end of the abutting rod has a detection through hole; when the movable cross beams of the first and second bracket units abut each other, the detection through holes of all the abutting rods at the first bracket unit and the detection through holes of all the abutting rods at the second bracket unit are distributed in a straight line, and the measuring light rays of the two laser ranging units can pass through the detection through holes of all the abutting rods at the first bracket unit and the detection through holes of all the abutting rods at the second bracket unit; when all the abutting rods of the bracket unit do not abut the corresponding groove portions, the measuring light ray of the laser ranging unit at the bracket unit can pass through the detection through hole of all the abutting rods at the bracket unit.

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

[0022] Further, the number of the first cross rails and the second cross rails is two.

[0023] Further, two limiting sleeves are connected to each movable cross beam; and the lead screw has two.

[0024] Beneficial effects:

[0025] 1. The edging machine can polish photovoltaic glass with large width and has good polishing effect.

[0026] 2. The edging machine can adjust the width, so as to polish glass with large width and glass with small width, thereby adapting to the polishing of photovoltaic glass with different widths.

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

[0028] Figure 1 is a first perspective view when polishing glass with large width;

[0029] Figure 2 is an enlarged view of the 1A region;

[0030] Figure 3 is an enlarged view of the 1B region;

[0031] Figure 4 is a second perspective view when polishing glass with large width;

[0032] Figure 5 is an enlarged view of the 2A region;

[0033] Figure 6 is an enlarged view of the 2B region;

[0034] Figure 7 is a first perspective view when polishing glass with small width;

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

[0036] Figure 9 is an enlarged view of the 3B region;

[0037] Figure 10 is a second perspective view when polishing glass with small width;

[0038] Figure 11 is an enlarged view of the 4A region.

[0039] Explanation of reference signs: base 1; first cross rail 1.1; fixed material guiding unit 2; first mounting bracket 2.1; first conveying belt unit 2.2; fixed supporting wheel 2.3; movable material guiding unit 3; slide rail 3.1; slide base 3.2; electric push rod 3.3; movable supporting wheel 3.4; first polishing unit 4; second mounting bracket 4.1; second upper conveying belt unit 4.2; second lower conveying belt unit 4.3; limiting guide rod 4.4; second polishing unit 5; bracket unit 6; movable cross beam 6.1; limiting sleeve 6.2; spring 6.3; second cross rail 6.4; mounting vertical plate 6.5; rotary air cylinder 6.6; rotary arm 6.7; laser ranging 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 part 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 bracket 11. DETAILED DESCRIPTION

[0040] Embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0041] The present application provides a device for polishing a workpiece, comprising Figures 1-11The illustrated high-efficiency grinding machine for photovoltaic glass includes a base 1, a fixed material guiding unit 2, a movable material guiding unit 3, a first polishing unit 4, a second polishing unit 5, two bracket units 6, and a translation driving unit 10 for driving the second polishing unit 5 to translate; the fixed material guiding unit 2 and the movable material guiding unit 3 are both fixedly connected with the base 1; the fixed material guiding unit 2 and the movable material guiding unit 3 both include a first mounting bracket 2.1 and a first conveying belt unit 2.2 mounted on the first mounting bracket 2.1, and the fixed material guiding unit 2 further includes a row of fixed guide wheels 2.3, and the movable material guiding unit 3 further includes a slide rail 3.1, a slide seat 3.2 cooperating with the slide rail 3.1, an electric push rod 3.3 for driving the slide seat 3.2 to translate, and a row of movable guide wheels 3.4 mounted on the slide seat 3.2; the first polishing unit 4 and the second polishing unit 5 both include a second mounting bracket 4.1, a cooling liquid cooling unit mounted on the second mounting bracket 4.1, a second upper conveying belt unit 4.2 mounted on the second mounting bracket 4.1, a second lower conveying belt unit 4.3 mounted on the second mounting bracket 4.1, a plurality of polishing heads, and a polishing head driving unit for driving the plurality of polishing heads; the first mounting bracket 2.1 of the movable material guiding unit 3 and the second mounting bracket 4.1 of the second polishing unit 5 are fixedly connected; the two bracket units 6 are located between the first polishing unit 4 and the second polishing unit 5. The base 1 has a first cross rail 1.1, and the second mounting bracket 4.1 of the second polishing unit 5 can translate along the first cross rail 1.1; the bracket unit 6 includes a movable cross beam 6.1, a limiting sleeve 6.2 connected with the movable cross beam 6.1, a plurality of first support units 7, and a plurality of second support units 8, the first polishing unit 4 and the second mounting bracket 4.1 of the second polishing unit 5 are both fixedly connected with a limiting guide rod 4.4 cooperating with the limiting sleeve 6.2, the limiting sleeve 6.2 is sleeved with a spring 6.3, one end of the spring 6.3 is connected with the second mounting bracket 4.1, and the other end is connected with the movable cross beam 6.1.

[0042] The first support units 7 and the second support units 8 are alternately distributed, the first support unit 7 comprises a first lower vertical rod 7.1, a horizontal connecting rod 7.2 connected with the first lower vertical rod 7.1, a first upper vertical rod 7.3 connected with the horizontal connecting rod 7.2, and a first guide wheel 7.4 installed at the top end of the first upper vertical rod 7.3, and the first upper vertical rod 7.3 has a groove part 7.3.1; the second support unit 8 comprises a second vertical rod 8.1, a rotating rod 8.2 hinged with the second vertical rod 8.1 through an elastic reset hinge part, an abutting rod 8.3 fixedly connected with the rotating rod 8.2, and a second guide wheel 8.4 installed at the top end of the rotating rod 8.2, and the top ends 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 arranged in a row without external force; the movable cross beam 6.1 has a first sliding groove matched with the first cross rail 1.1, two bracket units are respectively a first bracket unit and a second bracket unit, the first bracket unit has a second sliding groove and a threaded hole, the second bracket unit is connected with a second cross rail 6.4 matched with the second sliding groove, and the second bracket unit is further provided with a driving motor 9 and a lead screw 9.1 matched with the threaded hole driven by the driving motor 9; the number of the first support units 7 at the first bracket unit is equal to the number of the second support units 8 at the second bracket unit, the number of the first support units 7 at the second bracket unit is equal to the number of the second support units 8 at the first bracket unit, each first support unit 7 at the first bracket unit faces one second support unit 8 at the second bracket unit, and each second support unit 8 at the first bracket unit faces one first support unit 7 at the second bracket unit; when the movable cross beam 6.1 of the first bracket unit and the movable cross beam 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 arranged in a straight line and the top ends are at the same horizontal height, and the ends of all the abutting rods 8.3 at the first bracket unit and all the abutting 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 are lower than the top ends of the first guide wheels 7.4. The number of the first cross rail 1.1 and the second cross rail 6.4 is two. Each movable cross beam 6.1 is connected with two limiting sleeves 6.2; and the lead screw 9.1 has two.

[0043] When the movable cross beams 6.1 of the first bracket unit and the movable cross beams 6.1 of the second bracket unit abut against each other, the rotating rods 8.2 at the first bracket unit lean towards the second bracket unit at an angle of 30-40 degrees with the vertical direction, and the rotating rods 8.2 at the second bracket unit lean towards the first bracket unit at an angle of 30-40 degrees with the vertical direction. When the distance between the movable cross beams of the first bracket unit and the movable cross beams of the second bracket unit is greater than 50 cm, 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, the rotating rods 8.2 at the first bracket unit lean towards the second bracket unit at an angle of 5-10 degrees with the vertical direction, and the rotating rods 8.2 at the second bracket unit lean towards the first bracket unit at an angle of 5-10 degrees with the vertical direction. The bracket unit further comprises a mounting vertical plate 6.5 fixed to the movable cross beam, a rotary air cylinder 6.6 mounted to the mounting vertical plate 6.5, a rotary arm 6.7 driven by the rotary air cylinder 6.6, and a laser ranging unit 6.8 mounted to the rotary arm 6.7; the end of the abutment rod 8.3 has a detection through hole 8.3.1; when the movable cross beams 6.1 of the first bracket unit and the movable cross beams 6.1 of the second bracket unit abut against each other, the detection through holes of all the abutment rods at the first bracket unit and the detection through holes of all the abutment rods at the second bracket unit are distributed in a straight line, and the measuring light of the two laser ranging units 6.8 can pass through the detection through holes of all the abutment rods at the first bracket unit and the detection through holes of all the abutment rods at the second bracket unit; when none of the abutment rods 8.3 of the bracket unit abuts against the corresponding groove part 7.3.1, the measuring light of the laser ranging unit 6.8 at the bracket unit can pass through the detection through holes of all the abutment rods at the bracket unit.

[0044] Working principle: the edging machine of the present application can adjust the width between the first polishing unit and the second polishing unit by driving the second polishing unit to translate according to the width of the glass to be polished, so as to adapt to glasses of different widths. During polishing, the glass to be polished can be fed between the fixed guide unit and the movable guide unit, and the movable guide unit moves automatically with the second polishing unit, and when the glass passes between the fixed guide unit and the movable guide unit, the electric push rod pushes the movable guide wheel, so that the movable guide wheel aligns the glass to be polished. The two groups of bracket units can support the glass, and due to the springs on both sides, the two groups of bracket units can always be positioned in the middle of the first polishing unit and the second polishing unit. The second upper conveying belt unit and the second lower conveying belt unit realize clamping and conveying of the glass, and the polishing head polishes the edge of the glass.

[0045] As Figures 1-6As shown, in the case of a glass with a large width, the two bracket units are actually spaced apart, thereby supporting the glass with a large width. Since there are two bracket units, the support effect on the glass is better, thereby avoiding damage to the glass or the adverse effect of the glass sinking due to gravity on polishing. Moreover, at this position, the laser ranging unit of each bracket unit can measure the distance. When the measured value is greater than the set threshold value, it indicates that the ranging light passes through all the detection holes of the bracket unit, indicating that the position of the abutting rod of the second support unit is accurate, thereby indicating that the position of the rotating rod is accurate (if the rotating rod deviates slightly, for example, the bending or elastic reset hinged part is fatigued and cannot reset normally, the measurement light will be blocked by other positions of the abutting rod, so that the measured value is less than the first set threshold value; if the rotating rod deviates greatly, thereby driving the abutting rod to deviate greatly in position, although the abutting rod does not block the measurement light at this time, the large deviation in position is easily detected by the operator, thereby maintaining.

[0046] In addition, as shown in Figures 8-11 When the glass to be polished has a small width, two groups of bracket units are needed for support. When the two groups of bracket units are close together for support, there may be a certain height error between the two guide wheels arranged side by side, which may adversely affect polishing. Therefore, when polishing a glass with a small width, the driving motor is used to make the movable cross beams of the two bracket units abut each other, so that each abutting rod abuts the corresponding groove part, thereby rotating the rotating rod. 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 supporting the glass, and avoiding the adverse effect of two rows of guide wheels on the support of a small-width glass. Moreover, at this time, the detection of the detection holes can be achieved at both bracket units (of course, the detection in this state requires the adjustment of the position of the rotating arm by the rotating cylinder), thereby reminding maintenance in time if the measured value is less than the second set threshold value, indicating that the abutting rod deviates slightly in position. In this case, only one laser ranging unit needs to be used for detection. Of course, both laser ranging units can be in a position capable of detection, but only one laser ranging unit is turned on, and the other laser ranging unit is used as a measurement target. Measure once, then turn on the laser ranging unit and measure again. If the measurement values on both sides are the same, it indicates that the entire bracket unit is operating normally, otherwise it indicates that a fault has occurred (such as a deviation in the position of the abutting rod or inaccurate measurement by the laser ranging unit) and needs to be maintained.

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

Claims

1. A high-efficiency edger for photovoltaic glass, characterized in that, The utility model provides a kind of polishing machine, including base, fixed material guiding unit, movable material guiding unit, first polishing unit, second polishing unit, two bracket units and the translation driving unit for driving second polishing unit translation;The fixed material guiding unit and movable material guiding unit are fixedly connected with base;The fixed material guiding unit and movable material guiding unit all include first mounting bracket and the first conveying belt unit installed in first mounting bracket, the fixed material guiding unit further includes a row of fixed leaning wheel, the movable material guiding unit further includes slide rail, sliding seat matched with slide rail, electric push rod for driving sliding seat translation and a row of movable leaning wheel installed at sliding seat;The first polishing unit and second polishing unit all include second mounting bracket, cooling liquid cooling unit installed in second mounting bracket, second upper conveying belt unit installed in second mounting bracket, second lower conveying belt unit installed in second mounting bracket, multiple polishing heads and grinding head driving unit for driving multiple polishing heads;The first mounting bracket of movable material guiding unit and the second mounting bracket of second polishing unit are fixedly connected;Two bracket units are located between first polishing unit and second polishing unit;The base has first cross rail, and the second mounting bracket of second polishing unit can be translated along the first cross rail;The bracket unit includes movable cross beam, limiting sleeve connected with movable cross beam, multiple first support units and multiple second support units, the first polishing unit and the second mounting bracket of second polishing unit are all fixedly connected with limiting guide rod matched with limiting sleeve, the limiting sleeve is provided with spring, one end of the spring is connected with second mounting bracket, and the other end is connected with movable cross beam;Multiple first support units and multiple second support units are alternately distributed, the first support unit includes first lower vertical rod, horizontal connecting rod connected with first lower vertical rod, first upper vertical rod connected with horizontal connecting rod and first guide wheel installed at the top of first upper vertical rod, and first upper vertical rod is provided with recessed portion;The second support unit includes second vertical rod, rotating rod hinged with second vertical rod through elastic reset hinged part, abutting rod fixedly connected with rotating rod and second guide wheel installed at the top of rotating rod, and the top of all first guide wheels and all second guide wheels at same bracket is at same horizontal height without external force, and is distributed in a row.

2. The photovoltaic glass high-efficiency edging machine according to claim 1, characterized in that, The movable cross beam has first sliding groove matched with first cross rail, two bracket units are first bracket unit and second bracket unit respectively, the first bracket unit is provided with second sliding groove and screw hole, the second bracket unit is connected with second cross rail matched with second sliding groove, and the second bracket unit is further provided with driving motor, and driving motor drives screw rod matched with screw hole;The number of first support unit at first bracket unit is equal to the number of second support unit at second bracket unit, the number of first support unit at second bracket unit is equal to the number of second support unit at first bracket unit, each first support unit at first bracket unit faces one second support unit at second bracket unit, and each second support unit at first bracket unit faces one first support unit at second bracket unit. When the movable cross beams of the first and second bracket units 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 have top ends 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 portions, 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.

3. The photovoltaic glass high-efficiency edger of claim 2, wherein, When the movable cross beams of the first and second bracket units abut against each other, the rotating rods at the first bracket unit are inclined to the second bracket unit and have an angle of 30-40 degrees with the vertical direction, and the rotating rods at the second bracket unit are inclined to the first bracket unit and have an angle of 30-40 degrees with the vertical direction.

4. The photovoltaic glass high-efficiency edger of claim 2, wherein, When the movable cross beams of the first and second bracket units are spaced apart by more 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, the rotating rod at the first bracket unit is inclined to the second bracket unit and has an angle of 5-10 degrees with the vertical direction, and the rotating rod at the second bracket unit is inclined to the first bracket unit and has an angle of 5-10 degrees with the vertical direction.

5. The photovoltaic glass high-efficiency edger of claim 2, wherein, The bracket unit further comprises a mounting vertical plate fixed to the movable cross beam, a rotating cylinder mounted to the mounting vertical plate, a rotating arm driven by the rotating cylinder, and a laser ranging unit mounted to the rotating arm; the end of the abutment rod has a detection through hole; when the movable cross beams of the first and second bracket units abut against each other, the detection through holes of all the abutment rods at the first bracket unit and the detection through holes of all the abutment rods at the second bracket unit are distributed in a straight line, and the measuring light rays of the two laser ranging units can pass through the detection through holes of all the abutment rods at the first bracket unit and the detection through holes of all the abutment rods at the second bracket unit; when none of the abutment rods of the bracket unit abuts against the corresponding groove portion, the measuring light ray of the laser ranging unit at the bracket unit can pass through the detection through holes of all the abutment rods at the bracket unit.

6. The photovoltaic glass high-efficiency edger of claim 2, wherein, The number of the first and second cross rails is two.

7. The photovoltaic glass high-efficiency edger of claim 2, wherein, Two limiting sleeves are connected to each movable cross beam. The lead screw has two.

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