Circuit board positioning device

Abstract

The utility model relates to the field of circuit board devices, in particular to a circuit board positioning device, and solves the technical problem that the production efficiency is reduced because the circuit board positioning device cannot meet the processing of circuit boards with different sizes. According to the technical scheme, the circuit board positioning device comprises a bottom plate, a foot stool, a workbench, a console, a rotating assembly, a clamping assembly and a moving assembly; through cooperative operation of the rotating assembly and the clamping assembly, multi-angle flexibility is brought to machining operation, a circuit board can still be kept stable in the rotating process, the stability of the operation process is ensured, meanwhile, due to the accurate moving function of the moving assembly, the position of a drilling tool can be adjusted in all directions, and the machining efficiency is improved. The diversified processing requirements of the circuit board are met, and the problem that the production efficiency is reduced due to the fact that the circuit board positioning device cannot meet the requirement for processing circuit boards of different sizes is solved.

Description

Technical Field

[0001] The utility model relates to the field of circuit board devices, in particular to a circuit board positioning device. Background Art

[0002] The circuit board positioning device can ensure that the circuit board is placed in a fixed and precise position, which helps the manufactured circuit board maintain its integrity and performance and ensures that the various components and circuits on the circuit board can be accurately docked. By using the circuit board positioning device, workers can complete the positioning and assembly of the circuit board more quickly and accurately, thereby improving work efficiency and increasing product output.

[0003] When designing existing positioning devices, their positioning structures are usually manufactured for circuit boards of specific sizes. Therefore, when the size of the circuit boards required for production changes, these positioning devices cannot flexibly adapt to the new size. In order to cope with this situation, it is usually necessary to replace the entire positioning structure, which is not only time-consuming and labor-intensive, but also greatly affects the continuity and efficiency of production.

[0004] Therefore, in view of the fact that the above-mentioned circuit board positioning device cannot meet the processing needs of circuit boards of different sizes, resulting in reduced production efficiency, a circuit board positioning device can be designed. Through electric telescopic adjustment and a threaded transmission structure, it is convenient to adjust the position of the drill bit while positioning circuit boards of different sizes, thereby meeting different processing requirements of circuit boards. Utility Model Content

[0005] In order to overcome the problem that the circuit board positioning device cannot meet the processing requirements of circuit boards of different sizes, resulting in reduced production efficiency.

[0006] The technical solution of the utility model is: a circuit board positioning device, including a base plate, a tripod, a workbench, a control console, a rotating component, a clamping component, and a moving component; the lower end of the base plate is fixedly connected to a tripod for supporting the workbench, the upper end of the base plate is installed with a workbench, a cavity is opened in the workbench, a control console is installed at the front end of the workbench, the control console is an industrial computer and the industrial computer is provided with electronic components for controlling the operation of the rotating component, the clamping component and the moving component, the rotating component driven by a motor to rotate a gear set is installed in the cavity, the clamping component with an elastic structure is installed at the upper end of the rotating component, there are two groups of moving components driven by threads, one group is installed in the cavity, and the other group is installed at the upper end of the workbench.

[0007] Preferably, the workbench is the main area for positioning and processing circuit boards. A cavity is provided inside the workbench for installing a rotating component and a moving component. The console is an industrial computer for controlling the operation of the entire positioning device. The console has built-in electronic components, and precise control of the rotating component and the moving component is achieved through programming. The rotating component is installed in the cavity of the workbench, and the rotation function is achieved by driving the gear set to rotate by a motor. The rotating component has angle control and a stable rotation speed, and can meet various angle adjustment requirements during the positioning of the circuit boards. The clamping component has a spring, which can adapt to circuit boards of different sizes and shapes, ensuring that the clamping is firm and not easy to damage the circuit boards. The moving component realizes linear movement function through threaded transmission. The moving component has precise displacement control and a stable moving speed, and can achieve adjustment of the drill position.

[0008] Preferably, the rotating assembly includes a No. 1 rotating motor, a rotating shaft, and a limit column; the No. 1 rotating motor is installed in a cavity set inside the workbench, the rotating shaft is fixedly connected to the output shaft of the rotating motor, the limit column for supporting the rotation of the rotating shaft is fixedly connected to the workbench and plugged into the rotating shaft, the No. 1 rotating motor is the power source of the entire rotating assembly, the rotating motor has the characteristics of high precision and high torque, and can accurately control the speed and direction of rotation, the rotating shaft realizes the rotation function by fixed connection with the output shaft of the rotating motor, and the interior of the rotating shaft is designed with a plug-in structure matching the limit column to ensure that the rotating shaft remains stable during rotation without shaking.

[0009] Preferably, the rotating assembly further includes a limit rod, a support shaft, and a turntable; the limit rod for supporting the rotation of the support shaft is fixedly connected to the workbench and inserted into the support shaft, the support shaft is located on the left side of the rotating shaft, and the turntable is fixedly connected to the upper end of the support shaft. The limit rod is a component for supporting the rotation of the support shaft, similar to the limit column, to ensure that the support shaft is stable and not prone to shaking during rotation. The turntable is the load-bearing component of the rotating assembly, which drives the placement plate to rotate so that the circuit board in the placement plate can rotate.

[0010] Preferably, the rotating assembly also includes gear No. 1 and gear No. 2; the outer wall of the rotating shaft is fixedly connected to gear No. 1 which drives gear No. 2 to rotate, the outer wall of the supporting shaft is fixedly connected to gear No. 2, gear No. 1 is meshingly connected to gear No. 2, and gear No. 1 and gear No. 2 are key components for realizing synchronous rotation of the rotating shaft and the supporting shaft. Gear No. 1 rotates through the drive of the rotating motor, and gear No. 2 is meshingly connected to gear No. 1. When gear No. 1 rotates, gear transmission drives gear No. 2 and the supporting shaft to rotate synchronously. This gear transmission method has the characteristics of high transmission efficiency and precise transmission ratio, thereby ensuring the stability and precision of the rotating assembly.

[0011] Preferably, the clamping assembly includes a placing plate, a cross slide, a spring, and a clamping plate; a placing plate for placing a circuit board is installed on the upper end of the turntable, and a cross slide is opened on the upper end of the placing plate for moving the clamping plate. One end of the spring is fixedly connected to the inner wall of the cross slide, and the other end is fixedly connected to the clamping plate. A rubber pad is arranged on the outer side of the clamping plate. The placing plate is the basic structure of the clamping assembly and is used to place the circuit board. The surface of the placing plate can be subjected to some special treatments, such as anti-slip and anti-static. The cross slide is the track for the movement of the clamping plate, so that the clamping plate can move in the left and right and front and back directions, thereby realizing the clamping of circuit boards of different sizes and shapes. At the same time, the inner wall of the slide is smooth and wear-resistant, ensuring the smooth movement of the clamping plate. The elastic force of the spring enables the clamping plate to fit tightly on the circuit board to provide a stable clamping force. The clamping plate is a component that directly contacts the circuit board, and the clamping of the circuit board is realized by the action of the spring. A rubber pad is arranged on the outer side of the clamping plate, which not only increases the friction between the clamping plate and the circuit board, but also plays a buffering role, reduces the direct impact of the clamping plate on the circuit board, and protects the circuit board from damage.

[0012] Preferably, the moving assembly includes a No. 2 rotating motor, a No. 1 threaded rod, an L-shaped bracket, and an electric telescopic rod; there are two groups of No. 2 rotating motors and they are installed at the rear end of the workbench, the rear end of the No. 1 threaded rod is fixedly connected to the output shaft of the No. 2 rotating motor, and the front end is rotatably connected to a rotating groove arranged on the inner wall of the workbench cavity, the outer wall of the L-shaped bracket is fixedly connected to the outer wall of the moving seat, the moving seat is threadedly connected to the outer wall of the threaded rod, and the electric telescopic rod is installed at the upper end of the L-shaped bracket, the No. 2 rotating motor provides rotational power to drive the No. 1 threaded rod to perform rotational motion, the No. 1 threaded rod converts the rotational motion of the No. 2 rotating motor into linear motion, driving the moving seat and the L-shaped bracket to move, the L-shaped bracket serves as a supporting structure, and is used to install the electric telescopic rod, the electric telescopic rod realizes the telescopic function through electrical signals, and is used to adjust the position of the drill in the vertical direction.

[0013] Preferably, the moving assembly also includes a No. 3 rotating motor, a No. 2 threaded rod, and a drill; the telescopic end of the electric telescopic rod is fixedly connected to a protective shell, the No. 3 rotating motor is installed at the left end of the protective shell, the left end of the No. 2 threaded rod is fixedly connected to the output shaft of the No. 3 rotating motor, and the right end is rotatably connected to a rotating groove arranged on the inner wall of the protective shell, the outer wall of the No. 2 threaded rod is threadedly connected to a mounting seat for driving the drill to move, the drill is installed at the lower end of the mounting seat, the No. 3 rotating motor provides rotational power to drive the No. 2 threaded rod to rotate, the No. 2 threaded rod converts the rotational motion of the No. 3 rotating motor into linear motion, drives the mounting seat to move, and thus drives the drill to move.

[0014] Beneficial effects of the utility model:

[0015] 1. The coordinated operation of the rotating component and the clamping component not only brings multi-angle flexibility to the processing operation, but also allows the circuit board to remain stable during rotation, ensuring the stability of the operation process. At the same time, the precise movement function of the moving component allows the drill position to be fully adjusted to meet the diverse processing needs of the circuit board;

[0016] 2. The rubber pads installed on the outside of the clamping plate not only increase the friction between the clamping plate and the circuit board, but also play a buffering role, reducing the direct impact of the clamping plate on the circuit board and protecting the circuit board from damage;

[0017] 3. Gear transmission has the characteristics of high transmission efficiency and precise transmission ratio, ensuring the stability of the rotating components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 What is shown is a schematic diagram of the three-dimensional structure of the circuit board positioning device of the utility model;

[0019] Figure 2 What is shown is a front view schematic diagram of a circuit board positioning device of the utility model;

[0020] Figure 3 Shown is a top view schematic diagram of a circuit board positioning device of the utility model;

[0021] Figure 4 The present invention is a schematic diagram of the three-dimensional structure of the rotating assembly of the circuit board positioning device of the present invention;

[0022] Figure 5 The figure shows a three-dimensional structure diagram of a clamping assembly of a circuit board positioning device of the present utility model;

[0023] Figure 6 What is shown is a three-dimensional structural schematic diagram of the movable component of the circuit board positioning device of the present utility model.

[0024] Explanation of the accompanying drawings: 1. base plate; 2. tripod; 3. workbench; 4. control console; 501. rotating motor No. 1; 502. rotating shaft; 503. limiting column; 504. limiting rod; 505. supporting shaft; 506. turntable; 507. gear No. 1; 508. gear No. 2; 601. placing plate; 602. cross slide; 603. spring; 604. clamp; 701. rotating motor No. 2; 702. threaded rod No. 1; 703. L-shaped bracket; 704. electric telescopic rod; 705. rotating motor No. 3; 706. threaded rod No. 2; 707. drill. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] See also Figure 1-3The utility model provides an embodiment: a circuit board positioning device, including a base plate 1, a tripod 2, a workbench 3, a control console 4, a rotating component, a clamping component, and a moving component; the lower end of the base plate 1 is fixedly connected to a tripod 2 for supporting the workbench 3, the upper end of the base plate 1 is installed with a workbench 3, a cavity is opened in the workbench 3, a control console 4 is installed at the front end of the workbench 3, the control console 4 is an industrial computer and the industrial computer is provided with electronic components for controlling the operation of the rotating component, the clamping component and the moving component, the rotating component driven by the motor to rotate the gear set is installed in the cavity, the clamping component with an elastic structure is installed at the upper end of the rotating component, there are two groups of moving components driven by thread, one group is installed in the cavity, and the other group is installed at the upper end of the workbench 3, the workbench 3 is the main component for positioning and processing the circuit board The workbench 3 has a cavity inside for installing a rotating component and a moving component. The console 4 is an industrial computer for controlling the operation of the entire positioning device. The console 4 has built-in electronic components, and precise control of the rotating component and the moving component is achieved through programming. The rotating component is installed in the cavity of the workbench 3, and the rotation function is achieved by driving the gear set to rotate by a motor. The rotating component has angle control and a stable rotation speed, which can meet various angle adjustment requirements during the positioning process of the circuit board. The clamping component has a spring 603, which can adapt to circuit boards of different sizes and shapes, ensuring that the clamping is firm and not easy to damage the circuit board. The moving component realizes the linear movement function through threaded transmission. The moving component has precise displacement control and a stable moving speed, which can achieve adjustment of the drill position.

[0027] See also Figure 4In this embodiment, the rotating assembly includes a rotating motor 501, a rotating shaft 502, and a limiting column 503; the rotating motor 501 is installed in a cavity set inside the workbench 3, the rotating shaft 502 is fixedly connected to the output shaft of the rotating motor, and the limiting column 503 for supporting the rotation of the rotating shaft 502 is fixedly connected to the workbench 3 and plugged into the rotating shaft 502. The rotating assembly also includes a limiting rod 504, a supporting shaft 505, and a rotating disk 506; the limiting rod 504 for supporting the rotation of the supporting shaft 505 is fixedly connected to the workbench 3 and plugged into The support shaft 505 is located on the left side of the rotating shaft 502, and the turntable 506 is fixedly connected to the upper end of the support shaft 505. The rotating assembly also includes a No. 1 gear 507 and a No. 2 gear 508; the outer wall of the rotating shaft 502 is fixedly connected to the No. 1 gear 507 that drives the No. 2 gear 508 to rotate, and the outer wall of the support shaft 505 is fixedly connected to the No. 2 gear 508. The No. 1 gear 507 is meshed and connected to the No. 2 gear 508. The No. 1 rotating motor 501 is the power source of the entire rotating assembly. The rotating motor has the characteristics of high precision and high torque. The rotation speed and direction can be accurately controlled. The rotating shaft 502 realizes the rotation function by being fixedly connected with the output shaft of the rotating motor. The interior of the rotating shaft 502 is designed with a plug-in structure that matches the limiting column 503 to ensure that the rotating shaft 502 remains stable during the rotation without shaking. The limiting rod 504 is a component used to support the rotation of the support shaft 505. Similar to the limiting column 503, it ensures that the support shaft 505 is stable and not prone to shaking during the rotation. The turntable 506 is the bearing component of the rotating component. By driving the placement plate 601 to rotate, So that the circuit board in the placement plate 601 can rotate, gear No. 1 507 and gear No. 2 508 are key components to realize the synchronous rotation of the rotating shaft 502 and the supporting shaft 505. Gear No. 1 507 is rotated by the drive of the rotating motor, and gear No. 2 508 is meshed and connected with gear No. 1 507. When gear No. 1 507 rotates, gear transmission drives gear No. 2 508 and the supporting shaft 505 to rotate synchronously. This gear transmission method has the characteristics of high transmission efficiency and precise transmission ratio, which ensures the stability and accuracy of the rotating assembly.

[0028] See also Figure 5-6In this embodiment, the clamping assembly includes a placement plate 601, a cross slot 602, a spring 603, and a clamping plate 604; a placement plate 601 for placing circuit boards is installed on the upper end of the turntable 506, and a cross slot 602 for moving the clamping plate 604 is opened on the upper end of the placement plate 601. One end of the spring 603 is fixedly connected to the inner wall of the cross slot 602, and the other end is fixedly connected to the clamping plate 604. A rubber pad is arranged on the outer side of the clamping plate 604. The placement plate 601 is the basic structure of the clamping assembly, which is used to place circuit boards. The surface of the placement plate 601 can be subjected to some special treatments, such as anti-slip, anti-static, etc. The cross slot 602 is the track for the movement of the clamping plate 604, so that the clamping plate 604 can move in two directions, left and right and front and back, so as to realize the clamping of circuit boards of different sizes. The clamping of the circuit board of the shape of the clamping plate 604 is smooth and wear-resistant, and the inner wall of the slide groove is smooth and wear-resistant, ensuring the smooth movement of the clamping plate 604. The elastic force of the spring 603 enables the clamping plate 604 to fit tightly on the circuit board and provide a stable clamping force. The clamping plate 604 is a component that directly contacts the circuit board. The clamping of the circuit board is achieved through the action of the spring 603. A rubber pad is provided on the outer side of the clamping plate 604, which not only increases the friction between the clamping plate and the circuit board, but also plays a buffering role, reducing the direct impact of the clamping plate 604 on the circuit board and protecting the circuit board from damage. The moving assembly includes a No. 2 rotating motor 701, a No. 1 threaded rod 702, an L-shaped bracket 703, and an electric telescopic rod 704; the No. 2 rotating motor 701 has two groups and is installed at the rear end of the workbench 3, and the No. 1 threaded rod is installed at the rear end of the workbench 3. The rear end of the threaded rod 702 is fixedly connected to the output shaft of the No. 2 rotating motor 701, and the front end is rotatably connected to the rotating groove arranged on the inner wall of the cavity of the workbench 3. The outer wall of the threaded rod is threadedly connected with a moving seat, and the outer wall of the L-shaped bracket 703 is fixedly connected to the outer wall of the moving seat. The electric telescopic rod 704 is installed on the upper end of the L-shaped bracket 703. The moving assembly also includes a No. 3 rotating motor 705, a No. 2 threaded rod 706, and a drill 707; the telescopic end of the electric telescopic rod 704 is fixedly connected to a protective shell, the No. 3 rotating motor 705 is installed on the left end of the protective shell, the left end of the No. 2 threaded rod 706 is fixedly connected to the output shaft of the No. 3 rotating motor 705, and the right end is rotatably connected to the rotating groove arranged on the inner wall of the protective shell, and the outer wall of the No. 2 threaded rod 706 is threadedly connected with an installation for driving the drill 707 to move. The drill 707 is installed at the lower end of the mounting seat, the No. 2 rotary motor 701 provides rotary power to drive the No. 1 threaded rod 702 to rotate, the No. 1 threaded rod 702 converts the rotary motion of the No. 2 rotary motor 701 into linear motion, drives the movable seat and the L-shaped bracket 703 to move, the L-shaped bracket 703 is used as a supporting structure to install the electric telescopic rod 704, the electric telescopic rod 704 realizes the telescopic function through electrical signals, and is used to adjust the vertical position of the drill 707, the No. 3 rotary motor provides rotary power to drive the No. 2 threaded rod 706 to rotate, the No. 2 threaded rod 706 converts the rotary motion of the No. 3 rotary motor 705 into linear motion, drives the mounting seat to move, and thus drives the drill 707 to move.

[0029] In the working process, the staff first places the circuit board on the placement plate 601. At this time, the outer wall of the circuit board will squeeze the spring 603 to deform it, and then apply appropriate elastic force to the clamping plate 604 to ensure that the clamping plate 604 can fit tightly on the circuit board and provide a stable and reliable clamping force. Then, the staff starts the No. 1 rotating motor 501 through the control console 4. After the No. 1 rotating motor 501 is started, it will drive the rotating shaft 502 and the No. 1 gear 507 on the outer wall to start rotating. This rotation action will then drive the No. 2 gear 508 and the support shaft 505 to rotate synchronously, and finally the turntable 506 will start to rotate. The rotation of the turntable 506 will drive the placement plate 601 and the circuit board thereon to rotate together, so that the staff can adjust the angle of the circuit board to meet the processing requirements.

[0030] At the same time, the staff will also control the mobile component to work through the control console 4. At this time, the No. 2 rotating motor 701, the No. 3 rotating motor 705 and the electric telescopic rod 704 will be started at the same time. The No. 2 rotating motor 701 will drive the No. 1 threaded rod 702 to rotate, and this rotational motion will be converted into linear motion by the No. 1 threaded rod 702, thereby driving the moving seat and the L-shaped bracket 703 to move. At the same time, the No. 3 rotating motor 705 drives the No. 2 threaded rod 706 to rotate, and its rotational motion is also converted into linear motion to drive the mounting seat to move. In addition, the electric telescopic rod 704 will perform vertical telescopic motion. The coordinated work of these three can adjust the position of the drill 707 in all directions to ensure that various processing requirements of the circuit board are met.

[0031] Through the above steps, through the joint operation of the rotating component and the clamping component, not only can the flexible rotation provide multi-angle options for processing operations, but the circuit board can also be firmly clamped while rotating to ensure that the circuit board is stable and motionless during the operation. At the same time, the precise movement of the moving component can fully adjust the position of the drill 707 to meet the different processing requirements of the circuit board, solving the problem that the circuit board positioning device cannot meet the processing of circuit boards of different sizes, resulting in reduced production efficiency.

[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A circuit board positioning device, comprising a base plate (1), a stand (2), a workbench (3), and a control console (4); characterized in that: The invention also comprises a rotating assembly, a clamping assembly and a moving assembly; a tripod (2) for supporting a workbench (3) is fixedly connected to the lower end of the base plate (1); a workbench (3) is installed on the upper end of the base plate (1); a cavity is provided in the workbench (3); a control console (4) is installed at the front end of the workbench (3); the control console (4) is an industrial computer and electronic components for controlling the operation of the rotating assembly, the clamping assembly and the moving assembly are arranged in the industrial computer; a rotating assembly driven by a motor to rotate a gear set is installed in the cavity; a clamping assembly with an elastic structure is installed on the upper end of the rotating assembly; and two groups of moving assemblies driven by threads are provided, one group is installed in the cavity and the other group is installed on the upper end of the workbench (3).

2. A circuit board positioning device according to claim 1, characterized in that: The rotating assembly comprises a first rotating motor (501), a rotating shaft (502), and a limiting column (503); the first rotating motor (501) is installed in a cavity arranged inside a workbench (3); the rotating shaft (502) is fixedly connected to an output shaft of the rotating motor; and the limiting column (503) for supporting the rotation of the rotating shaft (502) is fixedly connected to the workbench (3) and inserted into the rotating shaft (502).

3. A circuit board positioning device according to claim 2, characterized in that: The rotating assembly further comprises a limiting rod (504), a supporting shaft (505), and a rotating disk (506); the limiting rod (504) for supporting the rotation of the supporting shaft (505) is fixedly connected to the workbench (3) and plugged into the supporting shaft (505); the supporting shaft (505) is located on the left side of the rotating shaft (502); and the rotating disk (506) is fixedly connected to the upper end of the supporting shaft (505).

4. A circuit board positioning device according to claim 3, characterized in that: The rotating assembly also includes a first gear (507) and a second gear (508); the outer wall of the rotating shaft (502) is fixedly connected with the first gear (507) for driving the second gear (508) to rotate, the outer wall of the supporting shaft (505) is fixedly connected with the second gear (508), and the first gear (507) is meshedly connected with the second gear (508).

5. A circuit board positioning device according to claim 3, characterized in that: The clamping assembly comprises a placement plate (601), a cross slide groove (602), a spring (603), and a clamping plate (604); a placement plate (601) for placing a circuit board is installed on the upper end of the turntable (506); a cross slide groove (602) for moving the clamping plate (604) is provided on the upper end of the placement plate (601); one end of the spring (603) is fixedly connected to the inner wall of the cross slide groove (602), and the other end is fixedly connected to the clamping plate (604); a rubber pad is provided on the outer side of the clamping plate (604).

6. A circuit board positioning device according to claim 1, characterized in that: The moving assembly comprises a No. 2 rotating motor (701), a No. 1 threaded rod (702), an L-shaped bracket (703), and an electric telescopic rod (704); the No. 2 rotating motor (701) has two groups and is installed at the rear end of the workbench (3); the rear end of the No. 1 threaded rod (702) is fixedly connected to the output shaft of the No. 2 rotating motor (701), and the front end is rotatably connected to a rotating groove arranged on the inner wall of the cavity of the workbench (3); the outer wall of the threaded rod is threadedly connected to a moving seat; the outer wall of the L-shaped bracket (703) is fixedly connected to the outer wall; and the electric telescopic rod (704) is installed at the upper end of the L-shaped bracket (703).

7. A circuit board positioning device according to claim 6, characterized in that: The moving assembly further comprises a No. 3 rotating motor (705), a No. 2 threaded rod (706), and a drill (707); the telescopic end of the electric telescopic rod (704) is fixedly connected to a protective shell, the No. 3 rotating motor (705) is installed at the left end of the protective shell, the left end of the No. 2 threaded rod (706) is fixedly connected to the output shaft of the No. 3 rotating motor (705), and the right end is rotatably connected to a rotating groove arranged on the inner wall of the protective shell, the outer wall of the No. 2 threaded rod (706) is threadedly connected to a mounting seat for driving the drill (707) to move, and the drill (707) is installed at the lower end of the mounting seat.

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