CN111055111B - High-productivity LED bulb assembly equipment and application method thereof - Google Patents

Abstract

The invention relates to high-productivity LED bulb assembly equipment and a use method thereof, wherein the equipment comprises a workbench, a jacking component and an anti-slip component; the lamp holder carrier is provided with a position material level; the LED bulb assembly equipment also comprises a clamping component; the clamping assembly comprises a fixed clamping arm, a movable clamping arm and a first resetting assembly; the movable clamping arm is connected with the workbench in a sliding way; the opposite surfaces of the fixed clamping arm and the movable clamping arm are provided with guide grooves; the LED bulb assembly device also comprises a longitudinal pushing component; the lifting assembly, the first reset assembly and the longitudinal pushing assembly are all arranged on the workbench, and when the lifting assembly is used, the fixed clamping arm and the movable clamping arm are matched to clamp the circuit board, the lifting assembly lifts the lamp holder carrier upwards, and the anti-slip assembly limits the lamp holder carrier to ensure that the lamp holder carrier cannot be staggered with the circuit board; and then indulge and push away the subassembly and push away the circuit board downwards, make it insert the lamp stand to accomplish the equipment work of lamp stand and circuit board, assembly efficiency is higher, and production flow is stable, has improved the uniformity of product.

Description

High-productivity LED bulb assembly equipment and application method thereof

Technical Field

The invention relates to the technical field of bulb assembly, in particular to high-yield LED bulb assembly equipment and a using method thereof.

Background

When the LED bulb is assembled, the circuit board is required to be inserted onto the lamp body, and the assembly of the circuit board and the lamp body is finished in a manual mode at present, so that the production efficiency is low.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a high-productivity LED bulb assembly device and a use method of the LED bulb assembly device aiming at the defects of the prior art.

The technical scheme adopted for solving the technical problems is as follows:

In one aspect, a high-productivity LED bulb assembly device is provided, wherein the device comprises a workbench, a jacking component for jacking a lamp holder carrier on the workbench, and an anti-slip component for preventing the lamp holder carrier from slipping on a horizontal plane during jacking; the upper surface of the lamp holder carrier is provided with a material level matched with the lamp holder; the LED bulb assembly equipment further comprises a clamping component which is positioned right above the lamp holder carrier material level during assembly; the clamping assembly comprises a fixed clamping arm which is fixed with the workbench and extends longitudinally, a movable clamping arm which is matched with the fixed clamping arm to clamp the circuit board, and a first resetting assembly which drives the movable clamping arm to reset along the clamping direction; the movable clamping arm is connected with the workbench in a sliding manner; the opposite surfaces of the fixed clamping arm and the movable clamping arm are respectively provided with a guide groove corresponding to the circuit board; the LED bulb assembly equipment further comprises a longitudinal pushing assembly for pushing the circuit board clamped by the clamping assembly downwards; the jacking component, the first resetting component and the longitudinal pushing component are all arranged on the workbench.

On the other hand, a use method of the LED bulb assembly equipment is provided, and the use method is based on the LED bulb assembly equipment and comprises the following steps:

The circuit board is clamped by the fixed clamping arm and the movable clamping arm, and the transverse arm body of the pushing arm is inserted into the adjusting through hole on the adjusting plate, so that the lower end part of the longitudinal arm body of the pushing arm is aligned with the center of the upper end of the circuit board;

After the steel wire is tensioned, the second bolt is locked, and the fixing work of the pushing arm is completed.

The invention has the beneficial effects that: when the anti-slip lamp holder is used, a circuit board is manually inserted, the fixed clamping arms and the movable clamping arms are matched to clamp the circuit board, and then the jacking component jacks up the lamp holder carrier to reach a specified assembly height, and the anti-slip component limits the lamp holder carrier in the jacking process, so that the lamp holder carrier is ensured not to be staggered with the circuit board; and then indulge and push away the subassembly and push away the circuit board downwards, make its along guide way gliding and insert the lamp stand to accomplish the equipment work of lamp stand and circuit board, packaging efficiency is higher, and production flow is stable, has improved the uniformity of product.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, in which the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained by those skilled in the art without inventive effort:

FIG. 1 is an overall block diagram of a high throughput LED bulb assembly apparatus provided by the present invention;

FIG. 2 is an enlarged view of FIG. 1at A1;

FIG. 3 is an enlarged view of FIG. 1at A2;

FIG. 4 is a side view of a high throughput LED bulb assembly apparatus provided by the present invention;

FIG. 5 is a front view of a high throughput LED bulb assembly apparatus according to the present invention;

Fig. 6 is a schematic structural view of a connecting plate located below in the high-yield LED bulb assembly device according to the present invention;

Fig. 7 is a schematic diagram of a second anti-slip rod in the high-yield LED bulb assembly device according to the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.

Example 1

The embodiment of the invention provides high-productivity LED bulb assembly equipment, as shown in fig. 1 to 4 and fig. 6, which comprises a workbench 10, a jacking component 11 for jacking a lamp holder carrier 2 on the workbench 10, and an anti-slip component 12 for preventing the lamp holder carrier 2 from slipping on a horizontal plane during jacking; the upper surface of the lamp holder carrier 2 is provided with a material placing groove 280 which is matched with the lamp holder 3; the LED bulb assembly equipment also comprises a clamping component 13 which is positioned right above the material placing groove 280 of the lamp holder carrier 2 during assembly; the clamping assembly 13 comprises a fixed clamping arm 14 fixed with the workbench 10 and extending longitudinally, a movable clamping arm 15 matched with the fixed clamping arm 14 for clamping the circuit board, and a first resetting assembly for driving the movable clamping arm 15 to reset along the clamping direction; the movable clamping arm 15 is in sliding connection with the workbench 10; the opposite surfaces of the fixed clamping arm 14 and the movable clamping arm 15 are respectively provided with a guide groove 180 corresponding to the circuit board; the LED bulb assembly equipment also comprises a longitudinal pushing assembly 17 for pushing the circuit board clamped by the clamping assembly 13 downwards; the jacking component 11, the first resetting component and the longitudinal pushing component 17 are all arranged on the workbench 10, when the lamp holder is used, a circuit board is manually inserted, the fixed clamping arm 14 and the movable clamping arm 15 are matched and clamped with the circuit board, the jacking component 11 further jacks up the lamp holder carrier 2 to reach a specified assembly height, and the anti-slip component 12 limits the lamp holder carrier 2 in the jacking process so as to ensure that the lamp holder carrier 2 cannot be staggered with the circuit board; and then, the circuit board is pushed downwards by the longitudinal pushing component 17, so that the circuit board slides downwards along the guide groove 180 and is inserted into the lamp holder 3, thereby completing the assembly work of the lamp holder 3 and the circuit board, having higher assembly efficiency, stable production flow and improving the consistency of products.

Wherein, the circuit boards with different lengths can be assembled by jacking the jacking component 11. Specifically, if the jacking component 11 is not provided, the height of the lamp holder carrier 2 is unchanged, so that the lower end of the clamping arm cannot be far away from the lamp holder carrier 2 in order to ensure that the circuit board can be smoothly inserted into the lamp holder 3, and when the lamp holder 3 with higher height needs to be assembled, the situation that the lamp holder 3 collides with the lower end of the clamping arm to interfere easily occurs, so that the applicability is greatly reduced. On the contrary, after the jacking component 11 is arranged, the jacking height of the jacking component 11 can be adjusted according to the actual height of the lamp holder 3, so that the collision between the lamp holder 3 and the lower end part of the clamping arm can be avoided, and the assembly applicability can be greatly improved.

Wherein, adopt a quiet arm lock combination that moves, on the one hand, the material loading is more convenient: if the double movable arms are adopted, two groups of movable arms must be simultaneously broken off during feeding; in this design, only need push away the movable arm, can insert the circuit board. On the other hand, the pushing stability and the assembly precision are improved: if the double movable arms are adopted, the circuit board can be pushed by a larger force when being pushed downwards, and meanwhile, in the pushing process, the two groups of movable arms are offset, so that the circuit board and the lamp holder 3 are staggered easily, and the assembly failure is caused. In this design, when pushing away the material, first reset assembly has pretightning force to movable arm lock 15, and fixed arm lock 14 is static, pushes away the material more steadily, and the circuit board can not stagger with lamp stand 3.

Wherein the jacking assembly 11 includes, but is not limited to, an air cylinder, a motor lead screw drive assembly. The first return assembly includes, but is not limited to, a compression spring.

As shown in fig. 5, the lifting assembly 11 is used for lifting the lamp socket carriers 2 on the conveyor belt 5; the LED bulb assembly equipment further comprises a stopping component 18 for stopping the lamp holder carrier 2 conveyed by the conveyor belt 5 and a driving component for driving the stopping component 18 to be far away from or close to the lamp holder carrier 2; when the lifting lamp is used, the conveyor belt 5 conveys the lamp holder carrier 2, and the driving component drives the stopping component 18 to be close to the lamp holder carrier 2, so that the lamp holder carrier 2 is stopped at a designated position to be lifted; after the assembly is completed, the driving assembly drives the stopping assembly 18 to be far away from the lamp holder carrier 2, and the lamp holder carrier 2 can continue to move forward under the condition of no shielding. Through the cooperation of stopping subassembly 18 and jacking subassembly 11 for this equipment can compatible flow line, can assemble on the flow line, need not to take off lamp stand carrier 2 from the production line, has improved production efficiency. Wherein the shut-off assembly 18 is a longitudinal baffle and the drive assembly includes, but is not limited to, a cylinder.

Further, as shown in fig. 1 to 3, the LED bulb assembly apparatus further includes an upper clamping plate 110 that cooperates with the lamp socket carrier 2 to clamp the lamp socket 3, and two sets of second reset components 111 distributed on both sides of the feeding direction of the conveyor belt 5; the upper clamping plate 110 is provided with avoidance through grooves 181 for avoiding the fixed clamping arms 14 and the movable clamping arms 15; the two groups of second reset components 111 cooperate to drive the upper clamping plate 110 to longitudinally reset; the second reset component 111 is arranged on the workbench 10, when the circuit board is in contact with the lamp holder 3, the lamp holder 3 can possibly have jumping conditions, and the upper clamping plate 110 and the lamp holder carrier 2 are matched to clamp the lamp holder 3, so that the movement of the lamp holder 3 during assembly is avoided; in addition, when the jacking assembly 11 is reset downwards, the lamp holder 3 can also operate at a high speed, and cannot move upwards under the pressure of the upper clamping plate 110. Therefore, the upper clamping plate 110 is added, so that the assembly and the resetting are smoother.

Further, as shown in fig. 2,3 and 6, the LED bulb assembly apparatus further includes two sets of connection plates 112 distributed on both sides of the feeding direction of the conveyor belt 5; the connecting plate 112 extends longitudinally and is fixed with the upper clamping plate 110; the workbench 10 is fixedly provided with a longitudinal guide rail 113; the connecting plate 112 is fixedly provided with the sliding blocks 114 corresponding to the guide rails 113, and the movement of the connecting plate 112 is more stable and orderly through the cooperation of the guide rails 113 and the sliding blocks 114;

the second reset assembly 111 comprises a longitudinal compression spring 115 and two groups of connecting sheets 116 respectively penetrating through two ends of the compression spring 115; one end of the connecting piece 116 extending into the compression spring 115 is longitudinally provided with a plurality of groups of units;

The unit includes two locating holes 182; the aperture of the positioning hole 182 is matched with the wire diameter of the compression spring 115; the arrangement direction of the two positioning holes 182 belonging to the same unit is the same as the direction in which the compression spring 115 is spirally raised; the center distance of the two positioning holes 182 belonging to the same unit in the lateral direction is the same as the pitch diameter of the compression spring 115; the center distance of the two positioning holes 182 belonging to the same unit in the longitudinal direction is the same as one-half pitch of the compression spring 115; the pitch of the adjacent two sets of cells is the same as the pitch of the compression springs 115; the connecting piece 116 positioned above is fixed with the connecting plate 112, and a hook 117 is fixed at one end of the connecting piece 116 positioned below, which is away from the compression spring 115; the second reset assembly 111 further comprises a hanging ring 118 fixedly arranged on the workbench 10 and matched with the hanging hook 117, when in use, the connecting piece 116 penetrates into and rotates, so that the connecting piece 116 penetrates through the compression spring 115, when in telescopic deformation, the connecting piece 116 has a larger contact area with the compression spring 115, the service life is longer, and meanwhile, the connecting piece 116 cannot deviate.

As shown in fig. 4, the jacking assembly 11 comprises a transverse jacking plate 119 and a first air cylinder 120 which is fixed with the workbench 10 and drives the jacking plate 119 to longitudinally move, and the air cylinder is used as a driving source, so that the installation is convenient; the anti-slip assembly 12 comprises a first anti-slip rod 121 which is positioned right below the lamp socket carrier 2 when being lifted; the first anti-slip bars 121 are provided in plural groups and are fixed to the jacking plate 119; the lamp stand carrier 2 lower surface is provided with a plurality of spacing holes with the first anti-skidding pole 121 one-to-one of multiunit, through the cooperation in first anti-skidding pole 121 and spacing hole, can prevent that lamp stand carrier 2 from skidding on the horizontal plane, spacing effectual and simple structure.

As shown in fig. 1, the workbench 10 includes a main stage 122, a turntable 123, and a rotating assembly 124 disposed on the main stage 122 for driving the turntable 123 to rotate; the turntable 123 is provided with a plurality of feeding positions 183 distributed circumferentially; the distribution circle of the feeding level 183 is concentric with the turntable 123; each feeding level 183 is provided with a clamping assembly 13; the jacking component 11 and the longitudinal pushing component 17 are arranged on the main platform 122; the fixed clamping arm 14 and the first reset component are arranged on the turntable 123, and a plurality of feeding positions 183 are arranged, so that the materials can be alternately fed, the circuit board for assembly is continuously provided, and the production efficiency is higher. Wherein the rotating assembly 124 includes, but is not limited to, an indexing disk.

Further, as shown in fig. 1 to 2, the fixed clip arm 14 and the turntable 123 are fixed by a first bolt; the turntable 123 is provided with an adjustment groove corresponding to the first bolt; the adjustment groove is waist type, and length direction is the same with the clamping direction of fixed arm lock 14, through adjusting the mounted position of first bolt in the adjustment groove, can adjust the biggest clamp material distance of fixed arm lock 14 and movable arm lock 15 to can be applicable to the circuit board of different width, the suitability is good, adjust convenient and simple structure.

Further, as shown in fig. 1, the upper level 183 is provided with at least three groups; the feeding positions 183 on the turntable 123 are uniformly distributed circumferentially, so that the rotation angle of the turntable 123 is more convenient to set; each feeding level 183 is provided with a plurality of groups of clamping components 13 distributed in a matrix, so that a plurality of lamp holders 3 can be assembled each time, and the assembly efficiency is higher.

Example two

The embodiment of the invention provides high-productivity LED bulb assembly equipment, which is the same as the first embodiment and is not repeated, and the difference is that:

As shown in fig. 7, the anti-slip assembly 12 includes a second anti-slip bar 125 that is attached to the outer surface of the socket carrier 2 when lifted; the second anti-slip rods 125 are fixedly arranged around the jacking plate 119, the lamp holder carrier 2 is enclosed by the four second anti-slip rods 125, so that the lamp holder carrier 2 can be prevented from slipping on a horizontal plane in the jacking process, the limiting effect is good, and holes are not required to be formed in the lamp holder carrier 2.

As shown in fig. 4 and 5, the vertical pushing component 17 comprises a second air cylinder 126 inversely installed on the workbench 10, an adjusting plate 127 fixed with the movable end of the second air cylinder 126, a pushing arm 128 and a limiting component 129 for limiting the position of the pushing arm 128 during assembly; the adjusting plate 127 is provided with adjusting through holes 185 distributed in a matrix; the adjusting through hole 185 is a round hole; the push arm 128 is L-shaped; the transverse arm body of the pushing arm 128 is matched with the adjusting through hole 185, and the longitudinal arm body is used for pushing the circuit board; the limiting assembly 129 comprises steel wires 130 connected end to end, a tensioning wheel 131 fixedly arranged at the right edge of the adjusting plate 127, and a second bolt 133 arranged at the upper edge of the adjusting plate 127 and matched with the adjusting plate to clamp the steel wires 130; the steel wire 130 is fixed with the transverse arm body of the pushing arm 128; the rubber ball 132 is worn to be fixed with in the one end that the horizontal arm body of pushing arm 128 stretches out the regulation through-hole 185, during the use, can be according to the actual length and the actual width of circuit board to the initial pushing position of pushing arm 128 is adjusted to a set of second cylinder 126 can be used for assembling the circuit board of equidimension not, need not to change second cylinder 126 for the change stroke, and the flexibility is better, adjusts conveniently and with low costs.

Specifically, after the center of the circuit board is deviated, the circuit board is clamped by the fixed clamping arm 14 and the movable clamping arm 15, and the transverse arm body of the pushing arm 128 is inserted into the adjusting through hole 185 on the adjusting plate 127, so that the lower end part of the longitudinal arm body of the pushing arm 128 is aligned with the center of the upper end of the circuit board, and compared with the edge of the pushing circuit board, the middle part of the pushing circuit board is pushed, so that the pushing is smoother and smoother; after alignment, the wire 130 is tightened to lock the second bolt 133, thereby completing the fixing of the ejector arm 128. When the circuit board is pushed, the pushing arm 128 tends to rotate upward, and the wire 130 and the pushing arm 128 are fixed, so that the wire 130 must be pulled downward to rotate, but the wire 130 is locked by the second bolt 133, so that the pushing arm 128 cannot rotate.

Example III

The embodiment of the invention provides a use method of LED bulb assembly equipment, which comprises the following steps:

Step S101: the circuit board is clamped by the fixed clamping arm and the movable clamping arm, and the transverse arm body of the pushing arm is inserted into the adjusting through hole on the adjusting plate, so that the lower end part of the longitudinal arm body of the pushing arm is aligned with the center of the upper end of the circuit board.

Step S102: after the steel wire is tensioned, the second bolt is locked, and the fixing work of the pushing arm is completed.

According to the application method, the initial pushing position of the pushing arm can be adjusted according to the actual length and the actual width of the circuit board, so that one set of second air cylinders can be used for assembling circuit boards with different sizes, the second air cylinders do not need to be replaced for changing the stroke, the flexibility is better, and the adjustment is convenient and the cost is low.

It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.

Claims (6)

1. The high-productivity LED bulb assembly equipment is characterized by comprising a workbench, a jacking component for jacking a lamp holder carrier on the workbench, and an anti-slip component for preventing the lamp holder carrier from slipping on a horizontal plane during jacking; the upper surface of the lamp holder carrier is provided with a material level matched with the lamp holder; the LED bulb assembly equipment further comprises a clamping component which is positioned right above the lamp holder carrier material level during assembly; the clamping assembly comprises a fixed clamping arm which is fixed with the workbench and extends longitudinally, a movable clamping arm which is matched with the fixed clamping arm to clamp the circuit board, and a first resetting assembly which drives the movable clamping arm to reset along the clamping direction; the movable clamping arm is connected with the workbench in a sliding manner; the opposite surfaces of the fixed clamping arm and the movable clamping arm are respectively provided with a guide groove corresponding to the circuit board; the LED bulb assembly equipment further comprises a longitudinal pushing assembly for pushing the circuit board clamped by the clamping assembly downwards; the jacking component, the first resetting component and the longitudinal pushing component are all arranged on the workbench; the jacking component is used for jacking the lamp holder carrier on the conveyor belt; the LED bulb assembly equipment further comprises a stopping component for stopping the lamp holder carrier conveyed by the conveyor belt and a driving component for driving the stopping component to be far away from or close to the carrier; the LED bulb assembly equipment further comprises an upper clamping plate matched with the lamp holder carrier to clamp the lamp holder, and two groups of second reset components distributed on two sides of the conveying belt in the feeding direction; the upper clamping plate is provided with avoidance through grooves for avoiding the fixed clamping arms and the movable clamping arms; the two groups of second reset components are matched to drive the upper clamping plate to longitudinally reset; the second reset component is arranged on the workbench; the LED bulb assembly equipment further comprises two groups of connecting plates distributed on two sides of the feeding direction of the conveyor belt; the connecting plate extends longitudinally and is fixed with the upper clamping plate; the workbench is fixedly provided with a longitudinal guide rail; the connecting plate is fixedly provided with a sliding block corresponding to the guide rail;

The second reset assembly comprises a longitudinal compression spring and two groups of connecting sheets respectively penetrating through two ends of the compression spring; one end of the connecting sheet extending into the compression spring is longitudinally provided with a plurality of groups of units;

The unit comprises two positioning holes; the aperture of the positioning hole is matched with the wire diameter of the compression spring; the arrangement direction of the two positioning holes belonging to the same unit is the same as the spiral rising direction of the compression spring; the center distance between the two positioning holes belonging to the same unit in the transverse direction is the same as the pitch diameter of the compression spring; the center distance of the two positioning holes belonging to the same unit in the longitudinal direction is the same as one half pitch of the compression spring; the spacing between two adjacent groups of units is the same as the pitch of the compression springs;

The connecting piece positioned above is fixed with the connecting plate, and a hook is fixed at one end of the connecting piece positioned below, which is away from the compression spring; the second reset assembly further comprises a hanging ring which is fixedly arranged on the workbench and is matched with the hook;

The jacking assembly comprises a transverse jacking plate and a first cylinder which is fixed with the workbench and drives the jacking plate to longitudinally move;

the anti-slip assembly comprises a first anti-slip rod which is positioned right below the lamp holder carrier when being lifted; the first anti-slip rods are provided with a plurality of groups and are fixed with the jacking plate; the lower surface of the lamp holder carrier is provided with a plurality of limit holes which are in one-to-one correspondence with a plurality of groups of first anti-slip rods;

Or the anti-slip component comprises a second anti-slip rod which is attached to the outer side surface of the lamp holder carrier when being lifted; the second anti-slip rods are fixedly arranged around the jacking plate.

2. The high-throughput LED bulb assembly apparatus of claim 1, wherein the work table comprises a main table body, a turntable, and a rotating assembly disposed on the main table body for driving the turntable to rotate; a plurality of charging positions distributed circumferentially are arranged on the turntable; the distribution circle of the feeding level is concentric with the turntable; each feeding level is provided with the clamping component;

the jacking component and the longitudinal pushing component are arranged on the main platform body; the fixed clamp arm and the first reset component are both arranged on the turntable.

3. The high-throughput LED bulb assembly apparatus of claim 2, wherein the fixed clamp arm and the turntable are fixed by a first bolt; the rotary table is provided with an adjusting groove corresponding to the first bolt; the adjusting groove is waist-shaped, and the length direction is the same as the clamping direction of the fixed clamping arm.

4. The high-throughput LED bulb assembly apparatus of claim 2, wherein the loading level is provided with at least three groups; the feeding positions on the turntable are uniformly distributed circumferentially; each feeding position is provided with a plurality of groups of clamping components distributed in a matrix.

5. The high-throughput LED bulb assembly apparatus of claim 1, wherein the vertical pushing assembly comprises a second cylinder inversely mounted on the table, an adjusting plate fixed with a movable end of the second cylinder, a pushing arm, and a limiting assembly defining a position of the pushing arm when assembled; the adjusting plate is provided with adjusting through holes distributed in a matrix; the adjusting through hole is a round hole; the pushing arm is L-shaped; the transverse arm body of the pushing arm is matched with the adjusting through hole, and the longitudinal arm body is used for pushing the circuit board;

The limiting assembly comprises steel wires connected end to end, a tensioning wheel fixedly arranged at the right edge of the adjusting plate, and a second bolt arranged at the upper edge of the adjusting plate and matched with the adjusting plate to clamp the steel wires; the steel wire is fixed with a transverse arm body of the pushing arm; one end of the transverse arm body of the pushing arm, which extends out of the adjusting through hole, is penetrated and fixed with a rubber ball.

6. A method of using an LED light bulb assembly device according to any one of claims 1-5, comprising the steps of:

The circuit board is clamped by the fixed clamping arm and the movable clamping arm, and the transverse arm body of the pushing arm is inserted into the adjusting through hole on the adjusting plate, so that the lower end part of the longitudinal arm body of the pushing arm is aligned with the center of the upper end of the circuit board;

After the steel wire is tensioned, the second bolt is locked, and the fixing work of the pushing arm is completed.