A top plate welding device for steel box girder processing with a cooling mechanism

Abstract

The present invention discloses a top plate welding device for processing steel box beams with a cooling mechanism, which relates to the technical field of welding equipment manufacturing. The device comprises support legs, a moving mechanism, an adjusting mechanism and a liquid cooling mechanism, and the top of the support legs is fixedly connected to an organism. According to the present invention, as the use time increases, the contact position between the top of the rotating base plate and the top plate overheats. In the existing device, the top plate and the rotating base plate cannot be separated during use, so that the temperature of the surface of the rotating base plate cannot drop quickly. The electric telescopic rod is controlled to operate to move the lifting plate downward. When the lifting plate moves downward, the driving plate is pulled by the adjusting frame so that the rotating base plate on the driving plate rotates in the fixed frame on the supporting vertical plate, tilting the rotating base plate. At this time, the ball fan in the protective box is controlled to operate so that the air outside the body is sucked in through the outside of the protective box and blown to the surface of the rotating base plate. Then the air is sent out through the air outlet slot on the rear side of the body, which can accelerate the heat dissipation rate of the surface of the rotating base plate.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment manufacturing, in particular to a top plate welding device for processing steel box beams with a cooling mechanism. Background Art

[0002] Steel box girder, also known as steel plate box girder, is a commonly used structural form for long-span bridges. It is generally used on bridges with larger spans. It is called a steel box girder because of its box-like appearance. The steel box girder is made up of a top plate, bottom plate, web plate, transverse diaphragm, longitudinal diaphragm and stiffening ribs connected by a fully welded method. Among them, the top plate is an orthotropic bridge deck composed of a cover plate and longitudinal stiffening ribs.

[0003] When the steel box girder is produced and processed, a welding device is required to weld the steel box girder and the top plate. During welding, the steel box girder needs to be placed on the top of the workbench, and then the top plate is placed above the steel box girder. Then the welding head is controlled to move the welding position for welding. A large amount of heat is generated during welding. The existing device generally dissipates heat by letting it stand naturally during welding, resulting in reduced efficiency during heat dissipation. The steel box girder needs more time to dissipate heat, which reduces the construction progress. Improvements need to be made to this problem. Summary of the Invention

[0004] The object of the present invention is to provide a top plate welding device for processing a steel box girder with a cooling mechanism, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a top plate welding device for steel box girder processing with a cooling mechanism, comprising a supporting foot, a moving mechanism, an adjusting mechanism and a liquid cooling mechanism, the top of the supporting foot being fixedly connected to an organism, and a protective door being hinged at the bottom front of the organism.

[0006] Wherein, the moving mechanism includes:

[0007] The guide rack is fixedly connected to the top of the back side of the machine body. The back side of the machine body is fixedly connected to a guide frame 1 below the guide rack. The middle part of the guide frame 1 is slidably connected to a sliding seat. The front side of the top of the sliding seat is fixedly connected to motor 1. Motor 1 has an output shaft. The output shaft of motor 1 is fixedly connected to a driving gear. The top of the back side of the sliding seat is fixedly connected to a support base. The top of the support base is fixedly connected to motor 2. Motor 2 has an output shaft. The output shaft of motor 2 is fixedly connected to a moving screw. The top of the guide rack is fixedly connected to guide frame 2. The middle part of the front side of the sliding seat is fixedly connected to a guide block. The middle part of the moving screw is threadedly connected to a ball nut pair. A lifting welding head is provided at the bottom of the ball nut pair.

[0008] According to the above technical solution, the adjusting mechanism includes a supporting vertical plate, a fixed frame, a rotating base plate, a fixed guide cylinder, an electric telescopic rod, a lifting plate, an adjusting frame, a driving plate and a positioning frame. The supporting vertical plate is fixedly connected to the middle of the top of the machine body, the fixed frame is fixedly connected to the middle of the left side of the supporting vertical plate, the rotating base plate is rotatably connected to the middle of the fixed frame, the fixed guide cylinder is fixedly connected to the middle of the bottom of the supporting vertical plate, the electric telescopic rod is fixedly connected to the bottom of the fixed guide cylinder, the lifting plate is fixedly connected to the top of the electric telescopic rod, the adjusting frame is fixedly connected to the left side of the lifting plate, the driving plate is rotatably connected to the middle of the adjusting frame, and the positioning frame is rotatably connected to the end of the driving plate away from the adjusting frame.

[0009] According to the above technical solution, the liquid cooling mechanism includes a liquid storage tank, a liquid outlet pipe, a water pump, a diversion pipe, a connecting hose, a heat dissipation water pipe rack, a return hose, a return pipe, a protective box and a ball fan. The liquid storage tank is fixedly connected to the bottom of the body, the liquid outlet pipe is fixedly connected to the rear side of the top of the liquid storage tank, the water pump is fixedly connected to the top of the liquid outlet pipe, the diversion pipe is fixedly connected to the top of the water pump, the connecting hose is fixedly connected to the top of the diversion pipe, the heat dissipation water pipe rack is fixedly connected to the bottom of the rotating base plate, the return hose is fixedly connected to the right front end of the heat dissipation water pipe rack, the return pipe is fixedly connected to the bottom end of the return hose, the protective box is fixedly connected to the top left side of the body, and the ball fan is arranged inside the protective box.

[0010] According to the above technical solution, the top front face of the sliding seat is fixedly connected to a fixed extension plate, and a rectangular slide groove is provided in the middle of the fixed extension plate to accommodate the movement of the lifting welding head. The front end of the movable screw is rotatably connected to the fixed plate, and the bottom of the fixed plate is fixedly connected to the top of the fixed extension plate, which can support the movable screw. The front side of the driving gear is meshed with the back side of the guide rack.

[0011] According to the above technical solution, the bottom of the fixed guide cylinder is fixedly connected to the middle of the top of the supporting vertical plate, and lifting grooves corresponding to the fixed guide cylinder are opened on the front and rear sides of the lifting plate. The lifting plate is slidingly connected to the outer wall of the fixed guide cylinder through the lifting grooves, and the top of the positioning frame is fixedly connected to the bottom of the rotating base plate, so that the positioning frame can drive the rotating base plate to rotate.

[0012] According to the above technical solution, the end of the connecting hose away from the diversion pipe is fixedly connected to the right rear end of the heat dissipation water pipe rack, and the bottom of the return pipe is fixedly connected to the front side of the top of the liquid storage tank, so that the water in the return pipe can flow back to the inside of the liquid storage tank.

[0013] According to the above technical solution, a ventilation slot is opened on the left side of the body to the right of the protective box, and an air outlet slot is opened on the bottom of the back of the body, so that the interior of the body can be ventilated.

[0014] According to the above technical solution, the number of the fixed frame, rotating base plate, adjusting frame, driving plate and positioning frame is two, and the two fixed frames, rotating base plate, adjusting frame, driving plate and positioning frames are symmetrically distributed on the left and right sides of the supporting vertical plate.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: in the present invention, when welding work is required, the top plate is placed on the top of the rotating bottom plate, and then the steel box girder is placed on the top plate; when it is required to move left and right, the motor 1 is controlled to work, and when the motor 1 is working, the driving gear is controlled to move on the guide rack, thereby moving the sliding seat; at the same time, when the sliding seat is moving, the lifting welding head under the fixed extension plate on the front side of the sliding seat can be adjusted in translation; when it is required to move forward and backward, the motor 2 is controlled to work, and when the motor 2 is working, the moving screw is controlled to rotate, and the ball nut pair is moved forward and backward on the moving screw, thereby adjusting the front and rear positions of the lifting welding head;

[0016] As the welding work proceeds, the heat on the top plate is absorbed into the rotating bottom plate. At this time, the water pump is controlled to work. When the water pump is working, the water in the liquid storage tank is pumped out and introduced into the heat dissipation water pipe rack through the liquid outlet pipe, water pump, diversion pipe and connecting hose. When the water flows in the heat dissipation water pipe rack, it takes away the heat absorbed by the rotating bottom plate and flows back to the liquid storage tank through the return hose and return pipe, thereby dissipating the heat on the top plate.

[0017] As the usage time increases, the contact position between the top of the rotating base plate and the top plate overheats. In the existing device, the top plate and the rotating base plate cannot be separated during use, so that the temperature of the surface of the rotating base plate cannot drop quickly. At this time, the electric telescopic rod is controlled to work, and the lifting plate is controlled to move downward when the electric telescopic rod is working. When the lifting plate moves downward, the driving plate is pulled by the adjusting frame, so that the rotating base plate on the driving plate rotates in the fixed frame on the supporting vertical plate, and the rotating base plate can be tilted. At this time, the ball fan in the protective box is controlled to work, so that the air outside the body is sucked in through the outside of the protective box and blown to the surface of the rotating base plate. The air is then sent out through the air outlet slots on the rear side of the body, which can accelerate the heat dissipation rate of the surface of the rotating base plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the sliding seat of the present invention;

[0021] Figure 3This is a schematic diagram of an explosion at the fixed guide cylinder of the present invention;

[0022] Figure 4 This is a schematic diagram of an explosion at the electric telescopic rod of the present invention;

[0023] Figure 5 It is a schematic diagram of a water pump of the present invention;

[0024] Figure 6 This is a schematic diagram of the heat dissipation water pipe rack of the present invention;

[0025] Figure 7 It is a schematic diagram of the ball fan of the present invention.

[0026] Figure: 1, support leg; 2, machine body; 3, protective door; 5, moving mechanism; 501, guide rack; 502, guide frame 1; 503, sliding seat; 504, motor 1; 505, driving gear; 506, guide block; 507, guide frame 2; 508, support base; 509, motor 2; 510, moving screw; 511, ball nut pair; 512, lifting welding head; 6, adjustment mechanism; 601, support vertical plate; 602, fixed Frame; 603, rotating base plate; 604, fixed guide cylinder; 605, electric telescopic rod; 606, lifting plate; 607, adjustment frame; 608, drive plate; 609, positioning frame; 7, liquid cooling mechanism; 701, liquid storage tank; 702, liquid outlet pipe; 703, water pump; 704, diverter pipe; 705, connecting hose; 706, cooling water pipe rack; 707, return hose; 708, return water pipe; 709, protective box; 710, ball bearing fan. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1-2 The present invention provides a technical solution: a top plate welding device for steel box girder processing with a cooling mechanism, including a support leg 1, a moving mechanism 5, an adjustment mechanism 6 and a liquid cooling mechanism 7. The top of the support leg 1 is fixedly connected to an organism 2, and a protective door 3 is hinged at the bottom of the front of the organism 2.

[0029] Wherein, the moving mechanism 5 includes:

[0030] The guide rack 501 is fixedly connected to the top of the back side of the body 2. A guide frame 1 502 is fixedly connected to the back side of the body 2 below the guide rack 501. A sliding seat 503 is slidably connected to the middle of the guide frame 1 502. A motor 1 504 is fixedly connected to the front side of the top of the sliding seat 503. The motor 1 504 has an output shaft. The output shaft of the motor 1 504 is fixedly connected to a driving gear 505. The top of the back side of the sliding seat 503 is fixedly connected to a support base 508. The top of the support base 508 is fixedly connected to a motor 2 509. The motor 2 509 has an output shaft. The output shaft of the motor 2 509 is fixedly connected to a moving screw 510. The top of the guide rack 501 is fixedly connected to a guide frame 2 507. The middle of the front side of the sliding seat 503 is fixedly connected to a guide block 506. The middle of the moving screw 510 is threadedly connected to a ball nut pair 511. A lifting welding head 512 is provided at the bottom of the ball nut pair 511.

[0031] The top front of the sliding seat 503 is fixedly connected to a fixed extension plate, and a rectangular slide groove is opened in the middle of the fixed extension plate to accommodate the movement of the lifting welding head 512. The front end of the movable screw 510 is rotatably connected to the fixed plate, and the bottom of the fixed plate is fixedly connected to the top of the fixed extension plate, which can support the movable screw 510. The front side of the driving gear 505 is meshed and connected with the back side of the guide rack 501.

[0032] When welding work is required, the top plate is placed on the top of the rotating bottom plate 603, and then the steel box girder is placed on the top plate. When it is necessary to move left and right, the motor 1 504 is controlled to work. When the motor 1 504 is working, the driving gear 505 is controlled to move on the guide rack 501, thereby moving the sliding seat 503. At the same time, when the sliding seat 503 is moving, the lifting welding head 512 under the fixed extension plate on the front side of the sliding seat 503 can be adjusted in translation position. When it is necessary to move forward and backward, the motor 2 509 is controlled to work. When the motor 2 509 is working, the moving screw 510 is controlled to rotate, and the ball nut pair 511 is moved forward and backward on the moving screw 510, thereby adjusting the front and rear positions of the lifting welding head 512.

[0033] See also Figure 3-7The present invention provides a technical solution: the adjustment mechanism 6 includes a support vertical plate 601, a fixed frame 602, a rotating base plate 603, a fixed guide cylinder 604, an electric telescopic rod 605, a lifting plate 606, an adjustment frame 607, a drive plate 608 and a positioning frame 609. The support vertical plate 601 is fixedly connected to the middle of the top of the body 2, the fixed frame 602 is fixedly connected to the middle of the left side of the support vertical plate 601, the rotating base plate 603 is rotatably connected to the middle of the fixed frame 602, the fixed guide cylinder 604 is fixedly connected to the middle of the bottom of the support vertical plate 601, the electric telescopic rod 605 is fixedly connected to the bottom of the fixed guide cylinder 604, the lifting plate 606 is fixedly connected to the top of the electric telescopic rod 605, the adjustment frame 607 is fixedly connected to the left side of the lifting plate 606, the drive plate 608 is rotatably connected to the middle of the adjusting frame 607, and the positioning frame 609 is rotatably connected to the end of the drive plate 608 away from the adjusting frame 607.

[0034] The liquid cooling mechanism 7 includes a liquid storage tank 701, a liquid outlet pipe 702, a water pump 703, a diverter pipe 704, a connecting hose 705, a heat dissipation water pipe rack 706, a return hose 707, a return pipe 708, a protective box 709 and a ball fan 710. The liquid storage tank 701 is fixedly connected to the bottom of the body 2, the liquid outlet pipe 702 is fixedly connected to the rear side of the top of the liquid storage tank 701, the water pump 703 is fixedly connected to the top of the liquid outlet pipe 702, the diverter pipe 704 is fixedly connected to the top of the water pump 703, the connecting hose 705 is fixedly connected to the top of the diverter pipe 704, the heat dissipation water pipe rack 706 is fixedly connected to the bottom of the rotating base plate 603, the return hose 707 is fixedly connected to the front right side of the heat dissipation water pipe rack 706, the return pipe 708 is fixedly connected to the bottom end of the return hose 707, the protective box 709 is fixedly connected to the top left side of the body 2, and the ball fan 710 is arranged inside the protective box 709.

[0035] The bottom of the fixed guide cylinder 604 is fixedly connected to the middle of the top of the supporting vertical plate 601, and the front and rear sides of the lifting plate 606 are provided with lifting grooves corresponding to the fixed guide cylinder 604. The lifting plate 606 is slidingly connected to the outer wall of the fixed guide cylinder 604 through the lifting grooves. The top of the positioning frame 609 is fixedly connected to the bottom of the rotating base plate 603, so that the positioning frame 609 can drive the rotating base plate 603 to rotate.

[0036] There are two fixed frames 602 , rotating base plates 603 , adjusting frames 607 , driving plates 608 and positioning frames 609 , and the two fixed frames 602 , rotating base plates 603 , adjusting frames 607 , driving plates 608 and positioning frames 609 are symmetrically distributed on the left and right sides of the supporting vertical plate 601 .

[0037] The end of the connecting hose 705 away from the diversion pipe 704 is fixedly connected to the right rear end of the heat dissipation water pipe rack 706, and the bottom of the return pipe 708 is fixedly connected to the top front side of the liquid storage tank 701, so that the water in the return pipe 708 can flow back to the inside of the liquid storage tank 701.

[0038] A ventilation slot is provided on the left side of the machine body 2 to the right of the protective box 709 , and an air outlet slot is provided on the bottom back of the machine body 2 to ventilate the interior of the machine body 2 .

[0039] As the welding work proceeds, the heat on the top plate is absorbed into the rotating bottom plate 603. At this time, the water pump 703 is controlled to work. When the water pump 703 is working, the water in the liquid storage tank 701 is pumped out and introduced into the heat dissipation water pipe rack 706 through the liquid outlet pipe 702, the water pump 703, the diversion pipe 704 and the connecting hose 705. When the water flows in the heat dissipation water pipe rack 706, it takes away the heat absorbed by the rotating bottom plate 603 and flows back to the liquid storage tank 701 through the return hose 707 and the return water pipe 708, which can dissipate heat on the top plate.

[0040] As the usage time increases, the contact position between the top of the rotating base plate 603 and the top plate overheats. When the existing device is in use, the top plate and the rotating base plate 603 cannot be separated, so the temperature of the surface of the rotating base plate 603 cannot drop quickly. At this time, the electric telescopic rod 605 is controlled to work, and the lifting plate 606 is controlled to move downward when the electric telescopic rod 605 is working, so that the lifting plate 606 pulls the driving plate 608 through the adjustment frame 607 when moving downward, so that the rotating base plate 603 on the driving plate 608 rotates in the fixed frame 602 on the supporting vertical plate 601, and the rotating base plate 603 can be tilted. At this time, the ball fan 710 in the protective box 709 is controlled to work, so that the air outside the body 2 is sucked in through the outside of the protective box 709 and blown to the surface of the rotating base plate 603, and then the air is sent out through the air outlet slot on the rear side of the body 2, which can accelerate the heat dissipation rate of the surface of the rotating base plate 603.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A top plate welding device for processing a steel box beam with a cooling mechanism, comprising a support leg (1), characterized in that: It also includes a moving mechanism (5), an adjusting mechanism (6) and a liquid cooling mechanism (7), wherein the top of the supporting foot (1) is fixedly connected to the body (2), and the bottom of the front of the body (2) is hinged with a protective door (3); Wherein, the moving mechanism (5) comprises: The guide rack (501) is fixedly connected to the top of the back of the machine body (2). The back of the machine body (2) is fixedly connected to a guide frame (502) below the guide rack (501). The middle of the guide frame (502) is slidably connected to a sliding seat (503). The front side of the top of the sliding seat (503) is fixedly connected to a motor (504). The motor (504) has an output shaft. The output shaft of the motor (504) is fixedly connected to a driving gear (505). The top of the back of the sliding seat (503) is fixedly connected to a support. A support base (508) is fixedly connected to a second motor (509) on the top of the support base (508), the second motor (509) has an output shaft, the output shaft of the second motor (509) is fixedly connected to a movable lead screw (510), the top of the guide rack (501) is fixedly connected to a second guide frame (507), the middle of the front of the sliding seat (503) is fixedly connected to a guide block (506), the middle of the movable lead screw (510) is threadedly connected to a ball nut pair (511), and a lifting welding head (512) is provided at the bottom of the ball nut pair (511); The adjustment mechanism (6) comprises a support vertical plate (601), a fixed frame (602), a rotating base plate (603), a fixed guide cylinder (604), an electric telescopic rod (605), a lifting plate (606), an adjustment frame (607), a drive plate (608) and a positioning frame (609), wherein the support vertical plate (601) is fixedly connected to the middle of the top of the machine body (2), the fixed frame (602) is fixedly connected to the middle of the left side of the support vertical plate (601), and the rotating base plate (603) is rotatably connected to the middle of the fixed frame (602). The fixed guide cylinder (604) is fixedly connected to the middle of the bottom of the supporting vertical plate (601), the electric telescopic rod (605) is fixedly connected to the bottom of the fixed guide cylinder (604), the lifting plate (606) is fixedly connected to the top of the electric telescopic rod (605), the adjustment frame (607) is fixedly connected to the left side of the lifting plate (606), the driving plate (608) is rotatably connected to the middle of the adjustment frame (607), and the positioning frame (609) is rotatably connected to the end of the driving plate (608) away from the adjustment frame (607); The liquid cooling mechanism (7) comprises a liquid storage tank (701), a liquid outlet pipe (702), a water pump (703), a diversion pipe (704), a connecting hose (705), a heat dissipation water pipe rack (706), a return hose (707), a return pipe (708), a protective box (709) and a ball fan (710), wherein the liquid storage tank (701) is fixedly connected to the bottom of the machine body (2), the liquid outlet pipe (702) is fixedly connected to the rear side of the top of the liquid storage tank (701), the water pump (703) is fixedly connected to the top of the liquid outlet pipe (702), and the diversion pipe (704) is fixedly connected to the top of the liquid outlet pipe (702). The flow pipe (704) is fixedly connected to the top of the water pump (703), the connecting hose (705) is fixedly connected to the top of the diversion pipe (704), the heat dissipation water pipe rack (706) is fixedly connected to the bottom of the rotating base plate (603), the return hose (707) is fixedly connected to the front end of the right side of the heat dissipation water pipe rack (706), the return pipe (708) is fixedly connected to the bottom end of the return hose (707), the protective box (709) is fixedly connected to the top of the left side of the machine body (2), and the ball fan (710) is arranged inside the protective box (709).

2. The top plate welding device for processing a steel box beam with a cooling mechanism according to claim 1, characterized in that: The front top of the sliding seat (503) is fixedly connected to a fixed extension plate, and a rectangular slide groove is provided in the middle of the fixed extension plate to accommodate the movement of the lifting welding head (512). The front end of the movable screw (510) is rotatably connected to the fixed plate, and the bottom of the fixed plate is fixedly connected to the top of the fixed extension plate. The front side of the driving gear (505) is meshed with the back side of the guide rack (501).

3. The top plate welding device for processing a steel box beam with a cooling mechanism according to claim 2, characterized in that: The bottom of the fixed guide cylinder (604) is fixedly connected to the middle of the top of the supporting vertical plate (601), and the front and rear sides of the lifting plate (606) are provided with lifting grooves corresponding to the fixed guide cylinder (604). The lifting plate (606) is slidably connected to the outer wall of the fixed guide cylinder (604) through the lifting grooves, and the top of the positioning frame (609) is fixedly connected to the bottom of the rotating base plate (603).

4. The top plate welding device for processing a steel box beam with a cooling mechanism according to claim 3, characterized in that: The end of the connecting hose (705) away from the diversion pipe (704) is fixedly connected to the right rear end of the heat dissipation water pipe rack (706), and the bottom of the return pipe (708) is fixedly connected to the top front side of the liquid storage tank (701).

5. The top plate welding device for processing a steel box beam with a cooling mechanism according to claim 4, characterized in that: A ventilation slot is provided on the left side of the machine body (2) and on the right side of the protective box (709), and an air outlet slot is provided on the bottom of the back side of the machine body (2).

6. The top plate welding device for processing a steel box beam with a cooling mechanism according to claim 5, characterized in that: The number of each of the fixed frame (602), the rotating base plate (603), the adjusting frame (607), the driving plate (608) and the positioning frame (609) is two, and the two fixed frames (602), the rotating base plate (603), the adjusting frame (607), the driving plate (608) and the positioning frame (609) are symmetrically distributed on the left and right sides of the supporting vertical plate (601).

Images