Cantilever multi-point processing device

Abstract

The invention discloses a cantilever type multi-point processing device with high processing efficiency, which comprises a column and a main cantilever rotatably connected to the column, a secondary cantilever system is suspended at one end of the main cantilever, the secondary cantilever system comprises a central mounting seat and at least two secondary cantilevers respectively hinged to the central mounting seat, each secondary cantilever is in a sub-area that does not interfere with each other within a 360° angle area around the axis of the central mounting seat and can rotate around a hinge axis within the sub-area, mechanical limit switches are respectively arranged at the extreme positions of both ends of the main cantilever, and an electromagnetic induction switch is arranged near the extreme position, a first guide rail is arranged horizontally and perpendicular to the axis of the central mounting seat along the secondary cantilever, at least one set of processing equipment is slidably connected to the first guide rail, the processing equipment is a vertical guide drilling and riveting system, and the position change of the processing equipment is achieved through horizontal and vertical guidance, which is easy to operate.

Description

Technical Field

[0001] The invention relates to a processing device capable of performing multi-point parallel operations. Background Art

[0002] At present, with the increasingly severe environmental problems, the development of new energy has become a consensus, and the equipment manufacturing in the field of new energy is particularly important. Heliostats are the basic equipment of solar thermal power generation systems. Heliostats are large in size and require many parts to be drilled and riveted.

[0003] The existing drilling and riveting equipment used in the manufacture of heliostats is mainly "cantilever crane + drilling and riveting machine" (collectively referred to as cantilever drilling and riveting machine). In order to process heliostats, the current processing method is to arrange, for example, three cantilever drilling and riveting machines around the heliostat processing platform. Each cantilever drilling and riveting machine is responsible for the drilling and riveting operations in an area to achieve simultaneous operations and improve processing efficiency. Each cantilever drilling and riveting machine includes a column, a cantilever hinged to the column, and a vertical guide drilling and riveting system slidably connected to the cantilever. The structure of the cantilever drilling and riveting machine is similar to that of the CN210438307U "fixed column cantilever crane" authorized and announced on May 1, 2020, except that its electric hoist is changed to a vertical guide drilling and riveting system. But if Figure 1 As shown, due to the limitation of the layout, in order to realize the operation at all possible locations, the cantilever length of a single cantilever drill and riveter must extend to the center position of the heliostat processing platform. This leads to the intersection of the working areas of each drill and riveter, which may cause interference. When using, it is also necessary to pay attention to avoid mutual obstruction during rotation, which may cause equipment damage accidents.

[0004] There is another device for processing multiple holes simultaneously in the prior art, which is a "high-efficiency hydraulic radial drilling machine" with the announcement number CN210548215U authorized on May 19, 2020. The machine has an adjustment device at the lower end of the drilling head frame, and a plurality of drill bits are provided at the lower end of the adjustment device to achieve multi-hole simultaneous drilling. However, the area in which it can operate simultaneously can only be limited to a very small area, and it cannot meet the requirements for efficient processing of heliostats. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a cantilever multi-point processing device with high processing efficiency. By improving the installation method of multiple processing equipment arranged side by side and supplemented by a guide structure, it can improve the efficiency and the operational safety and has a simple structure.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a cantilever multi-point processing device, including a column and a main cantilever rotatably connected to the column, a secondary cantilever system is suspended at one end of the main cantilever, the secondary cantilever system includes a central mounting seat and at least three secondary cantilevers respectively hinged to the central mounting seat, each secondary cantilever is in a sub-area that does not interfere with each other within a 360° angle area around the axis of the central mounting seat and can rotate around the hinge axis within the sub-area, a first guide rail arranged perpendicular to the axis of the central mounting seat is provided along the secondary cantilever, and at least one set of processing equipment is slidably connected to the first guide rail. In the present invention, the secondary cantilever and the central mounting seat are connected to each other by a rotating pair, similar to the existing cantilever drilling and riveting machine, it does not need to rotate the drive device, and the rotation of the secondary cantilever in its working area is manually controlled by the respective operators. The present invention is equivalent to changing the "fixed columns" of the existing two or more cantilever drilling and riveting machines into "integrated, suspended, rotatable and adjustable center mounting seats". The position adjustment of the center mounting seat is realized by the main cantilever cooperating with the column, which achieves the purpose of eliminating interference, improving safety and reducing the installation area while improving efficiency. According to the actual production efficiency needs, the number of auxiliary cantilevers to be installed can be determined. A single auxiliary cantilever can cover a fan-shaped working area, and the size of the central angle corresponding to the sub-area where a single auxiliary cantilever is located is determined according to the 360° angle area covered by all auxiliary cantilevers. The sub-areas where each auxiliary cantilever is located do not interfere with each other, and the sliding of a single drilling and riveting machine and other processing equipment on the corresponding auxiliary cantilever is independently adjusted and operated, which has good safety. When it is necessary to place the workpiece to be processed in the working area or to lift it out of the working area, each auxiliary cantilever is folded as close to the main cantilever as possible, and the main cantilever only needs to rotate to avoid it. The present invention is particularly suitable for processing workpieces that require large-area drilling and riveting.

[0007] Furthermore, the main cantilever is in the shape of a right-angled tripod, and is connected to the main drive through the upper and lower mounting seats and the main shaft. An electromagnetic induction switch is installed near the end of the main cantilever stroke, and the electromagnetic induction switch sends a signal to control the main drive to decelerate. A mechanical limit switch is installed at the end of the main cantilever stroke. The main drive drives the main shaft and then drives the main cantilever to rotate. The two switches control the rotation positioning of the main cantilever, which can realize the self-driving of the main cantilever, save time and effort, and can realize the rotation control of "acceleration-constant speed-deceleration-stop", ensuring smooth operation and improving the safety of the equipment.

[0008] Furthermore, a brake mechanism acting on the main shaft is installed between the upper and lower mounting seats, and the mechanical limit switch sends a signal to control the action of the brake mechanism, that is, the time from the main drive stopping rotation to the completion of braking can be shortened, and the positioning accuracy can be improved. A brake-type brake mechanism can be adopted, the purpose of which is to facilitate installation and inspection and maintenance.

[0009] Furthermore, the main drive is equipped with a handheld controller to control its start and reset, so as to facilitate the manipulation of the main cantilever.

[0010] As before, the number of auxiliary cantilevers required is determined according to the needs, and usually the number of auxiliary cantilevers is 3 to 6. The hinge axis of each auxiliary cantilever and the central mounting seat is arranged symmetrically, and the central angles of each sub-area are equal. Each sub-area can operate at the same time, greatly improving efficiency, and without interfering with each other.

[0011] Furthermore, the processing equipment is a vertical guide drilling and riveting system, which includes a bracket and a second guide rail arranged on the bracket, the bracket is slidably connected to the first guide rail, the second guide rail is parallel to the axis of the central mounting seat, the slide on the second guide rail is connected to the bracket through a drag chain, and a drilling and riveting machine is fixedly connected to the slide. The horizontal and vertical positions of the processing equipment are changed by the first guide rail and the second guide rail, which is convenient for operation.

[0012] Relying on the structural characteristics of the drag chain itself, a certain positioning can be achieved, but considering the processing accuracy, a spring booster is connected to the upper end of the bracket, and the slide is connected to the spring booster, which saves more effort when sliding the processing equipment up and down, and can more reliably fix the slide to stabilize the position of the processing equipment and improve the processing accuracy.

[0013] A guide sleeve is also connected between the bracket and the slide seat, and the verticality of the drilled hole is ensured by the guide sleeve.

[0014] In addition, other processing equipment such as welding equipment may also be installed on the secondary cantilever for other processing.

[0015] The beneficial effects of the present invention are: high processing efficiency, convenient operation, and easy installation and maintenance of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of multiple existing cantilever drilling and riveting machines being used to process the same workpiece.

[0017] Figure 2 It is a front view of the cantilever multi-point processing device of the present invention.

[0018] Figure 3 It is a stereoscopic diagram of the cantilever multi-point processing device of the present invention.

[0019] Figure 4 yes Figure 3 Schematic diagram of the connection between the vertical guide drilling and riveting system and the auxiliary cantilever as processing equipment.

[0020] Figure 5 It is a schematic diagram of the cantilever multi-point processing device of the present invention being used for workpiece processing.

[0021] Markings in the figure are: 1-column, 2-brake mechanism, 3-main drive, 4-main cantilever, 5-mechanical limit switch, 6-electromagnetic induction switch, 7-anti-collision rubber block, 8-center mounting seat, 9-auxiliary cantilever, 10-bracket, 11-drilling and riveting machine, 12-first guide rail, 13-second guide rail, 14-articulated shaft, 15-slide, 16-drag chain, 17-guide sleeve, 18-spring booster, 19-handle, 20-cantilever drilling and riveting machine, 21-workpiece, 40-spindle, 41-mounting seat. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 2 , Figure 3 and Figure 5 As shown, the cantilever multi-point processing device of the present invention includes a column 1 and a main cantilever 4 rotatably connected to the column 1, a secondary cantilever system is suspended at one end of the main cantilever 4, the secondary cantilever system includes a central mounting seat 8 and at least three secondary cantilevers 9 respectively hinged to the central mounting seat 8, each secondary cantilever 9 is in a sub-area that does not interfere with each other within a 360° angle area around the axis of the central mounting seat and can rotate around a hinge shaft 14 within the sub-area, the secondary cantilever 9 is provided with a first guide rail 12 arranged perpendicular to the axis of the central mounting seat 8, and at least one set of processing equipment is slidably connected to the first guide rail 12. Each auxiliary cantilever 9 can rotate with the main cantilever 4 to reach or leave the area where the workpiece 21 is located. After reaching the area where the workpiece 21 is located, each auxiliary cantilever 9 can rotate around the respective hinge shafts 14 on the central mounting seat 8 to change positions in their respective sub-areas. At the same time, the processing equipment installed on the auxiliary cantilever 9 can slide along the first guide rail 12 to change positions in their respective sub-areas. In the above design, the processing equipment on each auxiliary cantilever 9 operates independently without interfering with each other and can work in parallel. Compared with the existing design, the convenience and safety of operation are improved.

[0024] Example:

[0025] like Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, the cantilever multi-point processing device of the present invention includes a column 1 and a main cantilever 4 rotatably connected to the column 1. The self-driven main cantilever and auxiliary cantilever system have a wider and freer working area than the fixed cantilever. An auxiliary cantilever system is suspended at one end of the main cantilever 4, and the auxiliary cantilever system includes a central mounting seat 8 and five auxiliary cantilevers 9 respectively hinged to the central mounting seat 8. The auxiliary cantilever 9 is located in five sub-areas that do not interfere with each other within the 360° angle area around the axis of the central mounting seat. The auxiliary cantilever 9 can rotate around the hinge axis 14 in their respective sub-areas. Each auxiliary cantilever 9 is centrally symmetrically arranged with the hinge axis 14 of the central mounting seat 8. Each hinge axis 14 is separated by a partition installed on the central mounting seat 8. The partition is a mechanical limiting structure for the rotation angle of the auxiliary cantilever 9. The central angle corresponding to each sub-area is equal. Each auxiliary cantilever 9 can be independently operated by its own operator at the same time, which saves four-fifths of the working time compared with single-arm rotation.

[0026] The secondary cantilever 9 is provided with a first guide rail 12 arranged perpendicular to the axis of the central mounting seat 8, the first guide rail 12 is located in the horizontal direction, and at least one set of processing equipment is slidably connected to the first guide rail 12, and the processing equipment is a vertical guide drilling and riveting system, the vertical guide drilling and riveting system includes a bracket 10 and a second guide rail 13 arranged on the bracket 10, the second guide rail 13 is located in the vertical direction, the bracket 10 is slidably connected to the first guide rail 12, the second guide rail 13 is parallel to the axis of the central mounting seat 8, the slide 15 on the second guide rail 13 is connected to the bracket 10 through a drag chain 16, and a drilling and riveting machine 11 is fixedly connected to the slide 15, the upper end of the bracket 10 is connected to a spring booster 18, the slide 15 is connected to the spring booster 18, and a guide sleeve 17 is also connected between the slide 15 and the second guide rail 13. The drill and riveter 11 can move along the first guide rail 12 on the auxiliary cantilever 9, and can also move along the second guide rail 13, which can meet the requirements of drilling verticality with higher quality. The spring booster 18 can not only stabilize the drilling position, but also balance the gravity of the drill and riveter 11, reduce labor intensity, and thus quickly enter or exit the working position.

[0027] If the structure of the workpiece 21 allows, two or more drilling and riveting machines 11 may be arranged on each auxiliary cantilever 9 to further improve the work efficiency.

[0028] like Figure 2 and Figure 3As shown, the main cantilever 4 is in the shape of a right-angled tripod. The main cantilever 4 is connected to the main drive 3 through the upper and lower mounting seats 41 and the main shaft 40. The main cantilever 4 can rotate about the main shaft 40 by about 290°. There is a rotation blind area of ​​about 70° that cannot be reached. However, since the auxiliary cantilever 9 can rotate, the entire device can still basically cover the operating area of ​​360° rotation around the column. An electromagnetic induction switch 6 is installed near the end of the main cantilever stroke. The electromagnetic induction switch 6 sends a signal to control the main drive 3 to decelerate. A mechanical limit switch 5 is installed at the end of the main cantilever stroke. A brake mechanism 2 of the holding brake type acting on the main shaft 40 is installed between the upper and lower mounting seats 41. The mechanical limit switch 5 sends a signal to control the action of the brake mechanism 2. The main drive 3 is also equipped with a handheld controller to control the rotation and reset of the main cantilever 4.

[0029] When the main drive 3 is started, the main cantilever 4 starts to rotate around the main shaft 40 at a relatively low speed, and when it rotates to the electromagnetic induction switch 6, it accelerates, and then rotates at a uniform speed until it reaches the electromagnetic induction switch 6 near another limit position, and then it starts to decelerate, and when it reaches the mechanical limit switch 5, it brakes and stops; when the main drive 3 is reset, it first rotates at a relatively low speed, and when it rotates in the opposite direction to the electromagnetic induction switch 6, it starts to accelerate, and then it rotates at a uniform speed until it reaches the electromagnetic induction switch 6 near the initial limit position, and then it starts to decelerate, and when it reaches the mechanical limit switch 5 at the initial limit position, it brakes and stops. Compared with ordinary movable cantilevers, adding motor drive and being controlled by microcircuit will save more effort for operators, and the operation under microcircuit control will also be smoother and safer. The main drive 3 is equipped with a handheld controller to control its start and reset, which is convenient for the operation of the main cantilever 4.

[0030] The above designs are combined together to have high adaptability to high-platform and large-area work surfaces with frequent changes of workstations. The entire structure is relatively simple and easy to operate. It takes full consideration of the use and maintenance process. It has a simple structure, is easy to install and maintain, has a high degree of automation, reduces labor intensity, and improves work efficiency.

[0031] The installation and application process of the whole device is as follows.

[0032] First, according to the layout of the production line, strengthen the foundation of the equipment, and then install column 1. Before installing column 1, be sure to assemble some accessories on it to reduce height operations.

[0033] After the column 1 is installed, the assembly consisting of the main cantilever 4, the central mounting seat 8 and other accessories thereon is hoisted as a whole.

[0034] The entire assembly consisting of each auxiliary cantilever 9 and other remaining components is mounted on the central mounting seat 8.

[0035] After on-site installation, the movable main cantilever 4 is tested for operation, and the positions of the electromagnetic induction switch 6 and the mechanical limit switch 5 are adjusted to see whether the work station requirements are met, especially the synergistic effect of the two switches, and the switch position is determined in combination with the extreme position of the drill riveting machine 11 at the end of the auxiliary cantilever 9.

[0036] In actual use, the main boom 4 can be driven by the motor of the main drive 3 to rotate in a large range, and the motor is controlled by a handheld controller. Then the position of the auxiliary boom 9 is rotated to the working area by the worker holding the drilling and anchoring machine 11 at the end through the handle 19 to perform drilling and riveting. The end drilling and riveting work is completed by the vertically installed second guide rail 13 and the guide sleeve 17.

[0037] contrast Figure 1 and Figure 5 It can be seen that the device solves the problem that multiple existing cantilever drilling and riveting machines cannot be quickly loaded and unloaded, and the problem of possible interference during large-area drilling and riveting, thereby greatly improving production efficiency.

Claims

1. A cantilever multi-point processing device, comprising a column (1) and a main cantilever (4) rotatably connected to the column (1), characterized in that: A secondary cantilever system is suspended at one end of the main cantilever (4), the secondary cantilever system comprising a central mounting seat (8) and at least three secondary cantilevers (9) respectively hinged to the central mounting seat (8), each of the secondary cantilevers (9) being located in a sub-region that does not interfere with each other within a 360° angle region around the axis of the central mounting seat and being rotatable around a hinge axis (14) within the sub-region, the hinge axis (14) of each secondary cantilever (9) being spaced from the axis of the central mounting seat, the secondary cantilever (9) being provided with a first guide rail (12) arranged perpendicular to the axis of the central mounting seat (8), and at least one set of processing equipment being slidably connected to the first guide rail (12).

2. The cantilever multi-point processing device according to claim 1, characterized in that: The main cantilever (4) is in the shape of a right-angled tripod. The main cantilever (4) is connected to the main drive (3) via upper and lower mounting seats (41) and a main shaft (40). An electromagnetic induction switch (6) is installed near the end of the main cantilever travel. The electromagnetic induction switch (6) sends a signal to control the main drive (3) to decelerate. A mechanical limit switch (5) is installed at the end of the main cantilever travel.

3. The cantilever multi-point processing device as claimed in claim 2 is characterized in that: A brake mechanism (2) acting on the main shaft (40) is installed between the upper and lower mounting seats (41), and the mechanical limit switch (5) sends a signal to control the action of the brake mechanism (2).

4. The cantilever multi-point processing device according to claim 3, characterized in that: The brake mechanism (2) is a holding brake type brake mechanism.

5. The cantilever multi-point processing device according to claim 2, characterized in that: The main drive (3) is equipped with a handheld controller to control its start and reset.

6. The cantilever multi-point processing device according to claim 1, characterized in that: The number of the auxiliary cantilevers (9) is 3 to 6, and the auxiliary cantilevers (9) are arranged centrally symmetrically with the hinge shafts (14) of the central mounting seat (8), and the central angles corresponding to the sub-areas are equal.

7. The cantilever multi-point processing device according to any one of claims 1 to 6, characterized in that: The processing equipment is a vertical guide drilling and riveting system, which comprises a bracket (10) and a second guide rail (13) arranged on the bracket (10), the bracket (10) is slidably connected to the first guide rail (12), the second guide rail (13) is parallel to the axis of the central mounting seat (8), the slide seat (15) on the second guide rail (13) is connected to the bracket (10) through a drag chain (16), and the slide seat (15) is fixedly connected to the drilling and riveting machine (11).

8. The cantilever multi-point processing device according to claim 7, characterized in that: The upper end of the bracket (10) is connected to a spring booster (18), and the slide seat (15) is connected to the spring booster (18).

9. The cantilever multi-point processing device according to claim 7, characterized in that: A guide sleeve (17) is also connected between the slide seat (15) and the second guide rail (13).

10. The cantilever multi-point processing device according to any one of claims 1 to 6, characterized in that: The processing equipment is welding equipment.

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