Coupling lock assembly tie rod length ground adjustment device and method

Abstract

The application provides a coupling lock assembly pull rod length ground adjusting device and method, and belongs to the field of aircraft mechanism assembly. The coupling lock assembly is placed on a support, the front end of the coupling lock assembly shell is positioned by two forward positioning blocks and clamped by a forward clamping plate below, the bidirectional screw in the middle of the support drives the lateral split blocks at both ends to move to both sides, the coupling lock assembly is positioned and clamped, the pull rod sleeve in the coupling lock assembly is rotated to adjust the length of the pull rod, until the pull rod ear ring is coaxial with the hole at the upper end of the positioning support of the pull rod bolt on the support, the bolt is locked, the spare nuts at both ends of the pull rod sleeve are tightened to fix the length of the pull rod, and finally the coupling lock assembly is disassembled. The application shortens the working period, reduces the workload and the risk of falling from a high place, the lengths of the pull rods on both sides of the coupling lock assembly are always consistent, the relative position of the coupling lock assembly on the machine is accurate, the internal mechanism of the coupling lock assembly is not easy to deform and wear, and even fails.

Description

Technical Field

[0001] This invention belongs to the field of aircraft mechanism assembly, and relates to a ground adjustment device and method for the length of the tie rod of a coupling lock assembly, applied to the ground adjustment of the length of the tie rods of the two lugs on the coupling lock assembly. Background Technology

[0002] The coupling assembly contains two pull rods located at the bottom of the assembly housing. A pull rod lug with a bearing hole is located at the rear of the pull rod. A sleeve outside the pull rod is used to adjust its length. Nuts are installed on both sides of the sleeve; when the nuts are tightened, the pull rod length is fixed. Current methods for adjusting the coupling assembly pull rod length require installing the coupling assembly onto the aircraft and then installing a hatch on it before adjusting the lug pull rod length. This method requires the operator to sit at the highest point on the aircraft back to adjust the pull rod length, which is considered high-altitude work with limited operating space, high difficulty, and high skill requirements. There is also a risk of falling during adjustment. Furthermore, this method makes it difficult to ensure that the pull rods on both sides of the coupling assembly are of equal length. Inconsistent lengths will result in incorrect relative positioning of the coupling assembly on the aircraft after assembly, leading to uneven stress on the internal structure. This can easily cause deformation and wear of the internal structure during subsequent use, and in severe cases, even failure. In addition, repeated adjustments on the machine will greatly increase the workload of adjusting the length of the lever, affecting the delivery cycle and increasing production costs. Summary of the Invention

[0003] In view of the above reasons, the present invention provides a ground adjustment device and method for adjusting the length of the connecting lock assembly pull rod. The length of the connecting lock assembly pull rod can be adjusted directly on the ground, ensuring that the lengths of the pull rods on both sides are the same. After the connecting lock assembly is installed on the machine, the lengths of the pull rods on both sides can be adjusted simultaneously through the threaded sleeve on the assembly, ensuring that the lengths of the pull rods on both sides change in a consistent manner and remain equal. This greatly shortens the adjustment cycle of the connecting lock assembly on the machine, reduces the workload of the operator on the machine, and reduces the risk of falls from heights. At the same time, the consistent lengths of the pull rods on both sides of the connecting lock assembly ensure the accurate relative position of the entire connecting lock assembly on the machine, making it less likely for the internal mechanism of the connecting lock assembly to deform, wear, or even fail during subsequent use.

[0004] A ground adjustment device for the length of a connecting lock assembly pull rod, the ground adjustment device comprising a support 1, a crank handle 2, a two-way lead screw 3, a measuring ball support 4, a forward positioning block 5, a forward clamping plate 6, a clamping screw sleeve 7, a spring 8, a threaded joint 9, a hinge pin 10, a washer 11, a lateral splitting block 12, a lateral transmission assembly 13, a lifting lug 14, a pull rod bolt positioning bracket 15, a nut 16, and a bolt 17.

[0005] The support 1 is a rectangular frame structure with a central frame at the top center. Through holes are made on the side of the frame connected to both ends of the central frame. A cantilever beam is fixed at the midpoint of the bottom surface of a side frame parallel to the central frame. Threaded through holes are made on the side of this side frame. The upper surface of the support 1 is used for vertical positioning of the connecting lock assembly. The lifting lugs 14 are set on both sides of the support 1 for transporting and adjusting the ground adjustment device. The measuring ball support 4 is set at the four corners of the upper surface of the support 1 for calibrating the ground adjustment device.

[0006] Two forward positioning blocks 5 are symmetrically arranged on the upper surface of the support 1 above the cantilever beam. The end faces of the two forward positioning blocks 5 facing the middle frame are positioning surfaces used to position the front end of the connecting lock assembly housing. The forward clamping plate 6 is an adjustable clamping structure. Its lower end is hinged to the end of the cantilever beam near the middle frame via a hinge pin 10 and a washer 11, allowing it to rotate around the hinge. Its upper end engages with the side of the support 1 frame to press the connecting lock assembly housing onto the support 1, ensuring that the front end face of the connecting lock assembly housing is always in contact with the positioning surface of the forward positioning block 5. In the middle, the washer 11 is used to prevent the hinge pin 10 from falling off; the clamping screw sleeve 7 is engaged with the threaded hole on the side frame, and its tail end extends out of the frame and is fixed to the threaded joint 9. The threaded joint 9 is confined in the forward clamping plate 6 and can rotate in the forward clamping plate 6. By rotating the clamping screw sleeve 7, it can be extended or shortened, thereby driving the forward clamping plate 6 to rotate around the hinge, so as to realize the clamping and releasing of the connecting lock assembly housing; the clamping screw sleeve 7 is fitted with a spring 8, and the spring 8 is located between the support 1 frame and the forward clamping plate 6, which is used to assist the smoothness of the extension or shortening of the clamping screw sleeve 7.

[0007] The lateral transmission assembly 13 is a bracket structure, consisting of two identical components symmetrically fixed to the side wall of the middle frame of the support 1 facing the forward positioning block 5, and both facing the forward positioning block 5, for supporting the bidirectional lead screw 3. The bidirectional lead screw 3 is supported by the two lateral transmission assemblies 13, making it parallel to the upper surface of the support 1, and the bidirectional lead screw 3 can rotate freely within the two lateral transmission assemblies 13. The two lateral opposing blocks 12 are identical in structure, fitted onto both ends of the bidirectional lead screw 3 and threaded together. When the bidirectional lead screw 3 rotates, the two lateral opposing blocks 12 move relative to or away from each other. The outer end faces of the two lateral opposing blocks 12 are positioning surfaces, used to ensure that the central axis of the connecting lock assembly coincides with the central axis of the ground adjustment device. At the same time, the outer end faces of the two lateral opposing blocks 12 cooperate with the two side frames of the support 1 to clamp the connecting lock assembly. The crank handle 2 passes through the through hole on the side of the support 1 and is inserted into one end of the bidirectional lead screw 3 for rotating the bidirectional lead screw 3.

[0008] Two identical tie rod bolt positioning brackets 15 are symmetrically fixed to the side wall opposite to the support 1 and the forward positioning block 5. Both tie rod bolt positioning brackets 15 have through holes at their upper ends for connecting to the bearing holes on the two tie rod lugs in the connecting lock assembly. Bolts 17 are inserted into the holes and secured by nuts 16. The tie rod bolt positioning brackets 15, nuts 16, and bolts 17 are used to limit the length and position of the tie rods in the connecting lock assembly.

[0009] A method for adjusting the length of a connecting lock assembly rod on the ground, the method comprising the following steps:

[0010] (1) Place the side of the connecting lock assembly with the pull rod downward on the support 1, and position it vertically through the upper surface of the support 1. Place the front end of the connecting lock assembly housing against the positioning surfaces of the two forward positioning blocks 5, rotate the clamping screw sleeve 7, and use the forward clamping plate 6 to clamp the connecting lock assembly.

[0011] (2) Insert the crank handle 2 into the interface on one side of the bidirectional lead screw 3, rotate the crank handle 2, drive the bidirectional lead screw 3 to rotate in the lateral transmission assembly 13, and then drive the lateral pairing blocks 12 on both sides to move to both sides at the same time until the lateral pairing blocks 12 are in contact with the inner surfaces on both sides of the connecting lock assembly housing. Continue to rotate the crank handle 2 so that the central axis of the connecting lock assembly is aligned with the central axis of the ground adjustment device and the connecting lock assembly is clamped. At this time, the connecting lock assembly is positioned and tightened.

[0012] (3) Rotate the pull rod sleeve on the connecting lock assembly to shorten or lengthen the connecting lock pull rod, so that the bearing holes on the two pull rod lugs of the connecting lock assembly are concentric with the holes of the two pull rod bolt positioning brackets 15 respectively. Insert the bolt 17 to fix the position of the pull rod, tighten the bolt 17 with the nut 16, and tighten the sleeve with the spare nuts on both sides of the sleeve to fix the length of the pull rod. Mark the position on the sleeve and the pull rod for reference for subsequent machine adjustments.

[0013] (4) Keep the length of the pull rod unchanged, loosen the nut 16, pull out the bolt 17, loosen the pull rod of the connecting lock assembly, rotate the crank handle 2 in the opposite direction, so that the two lateral blocks 12 move towards the center with the rotation of the bidirectional screw 3 until the lateral blocks 12 are separated from the housing of the connecting lock assembly, rotate the clamping sleeve 7 to loosen the forward clamping plate 6, release the forward positioning and clamping of the housing of the connecting lock assembly, and remove the connecting lock assembly that has returned to a free state.

[0014] The beneficial effects of this invention are:

[0015] (1) The method of the present invention can realize the safe, convenient, efficient and precise adjustment of the length of the pull rod of the connecting lock assembly on the ground. Compared with the previous adjustment method, it greatly shortens the operation time and workload of the connecting lock assembly on the machine, improves the assembly efficiency of the assembly, and greatly reduces the operator's on-machine operation time and reduces the risk of the operator falling off the machine.

[0016] (2) The present invention is simple and safe to operate. It does not require a deep understanding of the coupling lock assembly and hatch structure, nor does it require on-site adjustment skills. After understanding the installation and positioning principle and operation steps of the coupling lock assembly on the ground adjustment device for the length of the coupling lock assembly rod, the ground adjustment operation can be realized. The skill level requirements of the operator are low, and everyone can operate it. It is highly universal.

[0017] (3) The length of the tie rods on both sides of the connecting lock adjusted by the present invention is accurate, which can avoid the problem of inconsistent length of the tie rods on both sides caused by on-machine adjustment, so that the relative position of the connecting lock assembly on the machine is correct, reducing the sway of the hatch during the opening process, improving the product assembly accuracy and quality, and avoiding wear and deformation of the connecting lock assembly during subsequent use.

[0018] (4) This invention utilizes specialized equipment and methods to achieve the function of adjusting the length of the connecting lock assembly rod on the ground. The purpose is to adjust the length of the connecting lock assembly rod safely, conveniently, and accurately off-the-ground, reducing the risk of the operator falling from a height when adjusting on-the-ground, reducing the workload of adjusting the length of the connecting lock assembly rod on-the-ground, and improving the overall adjustment efficiency of the cockpit canopy assembly. At the same time, by using the ground adjustment method for the length of the connecting lock assembly rod, the lengths of the connecting lock assembly rods on both sides are consistent, which can avoid subsequent wear and deformation caused by inconsistent lengths of the connecting lock assembly rods on both sides when adjusting on-the-ground.

[0019] (5) In this invention, after determining the total length of the connecting lock assembly by using the front positioning surface of the ground adjustment device for the length of the connecting lock assembly rod and the positioning bracket of the rod bolt, the connecting lock assembly is installed on the ground adjustment device for the length of the connecting lock assembly rod. The bidirectional lead screw is rotated to position and tighten the connecting lock assembly using the lateral split positioning device and the forward positioning clamping device. The length of the connecting rod is adjusted by the threaded sleeves on both sides of the connecting lock assembly to meet the technical requirements of the drawings. Then, the length of the connecting rod is fixed by using the safety holes on the threaded sleeves and the lugs of the connecting rod. Compared with the previous on-machine rod length adjustment method, the ground adjustment method for the length of the connecting lock assembly rod can ensure that the lengths of the connecting rods on both sides are consistent, avoiding the inconsistency in the lengths of the connecting rods on both sides due to the lack of forward positioning on the machine. This can better ensure the accuracy of the relative position of the connecting lock assembly on the machine after assembly.

[0020] (6) The positioning component on the ground-based adjustment device for the length of the connecting lock assembly rods allows for better length adjustment of the connecting lock assembly's two side rods, enabling the connecting lock assembly to better meet assembly requirements and facilitate better adjustment of the gap between the hood and the windshield, thus satisfying overall assembly requirements. This invention's method can efficiently and accurately adjust the length of the connecting lock assembly's two side rods, preparing for post-installation adjustments. Furthermore, the length adjustment process is performed under the machine, ensuring safety, reliability, simplicity, and high operability. The measuring positioning block on the ground-based adjustment device for the connecting lock assembly rod length can continuously measure the device's dimensional accuracy using a tool ball, allowing for constant monitoring of the device's integrity. Attached Figure Description

[0021] Figure 1 Three-dimensional vision for ground adjustment equipment for connecting lock assembly tie rod length Figure 1 .

[0022] Figure 2 Three-dimensional vision for ground adjustment device for connecting lock assembly rod length Figure 2 .

[0023] In the diagram: 1. Support; 2. Handle; 3. Two-way lead screw; 4. Measuring ball support; 5. Forward positioning block; 6. Forward clamping plate; 7. Clamping sleeve; 8. Spring; 9. Threaded joint; 10. Hinge pin; 11. Washer; 12. Lateral split block; 13. Lateral transmission assembly; 14. Lifting lug; 15. Tie rod bolt positioning bracket; 16. Nut; 17. Bolt. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will now be described in detail with reference to the accompanying drawings.

[0025] A ground adjustment device for the length of a connecting lock assembly pull rod, the ground adjustment device comprising a support 1, a crank handle 2, a double-acting lead screw 3, a measuring ball support 4, a forward positioning block 5, a forward clamping plate 6, a clamping screw sleeve 7, a spring 8, a threaded joint 9, a hinge pin 10, a washer 11, a lateral splitting block 12, a lateral transmission assembly 13, a lifting lug 14, a pull rod bolt positioning bracket 15, a nut 16, and a bolt 17, as shown. Figure 1 and Figure 2 As shown.

[0026] The support 1 is a rectangular frame structure with a central frame at the top center. Through holes are made on the side of the frame connected to both ends of the central frame. A cantilever beam is fixed at the midpoint of the bottom surface of a side frame parallel to the central frame. Threaded through holes are made on the side of this side frame. The upper surface of the support 1 is used for vertical positioning of the connecting lock assembly. The lifting lugs 14 are set on both sides of the support 1 for transporting and adjusting the ground adjustment device. The measuring ball support 4 is set at the four corners of the upper surface of the support 1 for calibrating the ground adjustment device.

[0027] Two forward positioning blocks 5 are symmetrically arranged on the upper surface of the support 1 above the cantilever beam. The end faces of the two forward positioning blocks 5 facing the middle frame are positioning surfaces used to position the front end of the connecting lock assembly housing. The forward clamping plate 6 is an adjustable clamping structure. Its lower end is hinged to one end of the cantilever beam of the support 1 via a hinge pin 10 and a washer 11, allowing it to rotate around the hinge point. Its upper end cooperates with the frame of the support 1 to press the connecting lock assembly housing against the inner side of the frame on that side, so that the front end face of the connecting lock assembly housing is always in contact with the forward positioning blocks 5. The positioning surfaces fit together; the clamping screw sleeve 7 mates with the threaded hole on the side frame, and its tail end protrudes from the frame and is fixedly connected to the threaded joint 9. The threaded joint 9 is confined within the forward clamping plate 6 and can rotate within the forward clamping plate 6. By rotating the clamping screw sleeve 7, its extension and retraction within the support 1 are controlled, which drives the forward clamping plate 6 to rotate around the hinge, thereby achieving the clamping and loosening of the connecting lock assembly housing; a spring 8 is fitted on the clamping screw sleeve 7, and the spring 8 is located between the support 1 frame and the forward clamping plate 6, which is used to assist the smoothness of the extension or retraction of the clamping screw sleeve 7.

[0028] The lateral transmission assembly 13 is a bracket structure, consisting of two identical components symmetrically fixed to the side wall of the middle frame of the support 1, with both facing the forward positioning block 5, for supporting the bidirectional lead screw 3. The bidirectional lead screw 3 is supported by the two lateral transmission assemblies 13, making it parallel to the upper surface of the support 1, and the bidirectional lead screw 3 can rotate freely within the two lateral transmission assemblies 13. The two lateral opposing blocks 12 are also identical, fitted onto both ends of the bidirectional lead screw 3 and threaded together. When the bidirectional lead screw 3 rotates, the two lateral opposing blocks 12 move relative to or away from each other. The outer end faces of the two lateral opposing blocks 12 are positioning surfaces, used to ensure that the central axis of the connecting lock assembly coincides with the central axis of the ground adjustment device. At the same time, the outer end faces of the two lateral opposing blocks 12 cooperate with the two side frames of the support 1 to clamp the connecting lock assembly. The crank handle 2 passes through the through hole on the side of the support 1 and is inserted into one end of the bidirectional lead screw 3 for rotating the bidirectional lead screw 3.

[0029] Two identical tie rod bolt positioning brackets 15 are provided and symmetrically fixed to the side wall opposite to the support 1 and the forward positioning block 5. Both tie rod bolt positioning brackets 15 have through holes at their upper ends for connecting to the bearing holes on the two tie rod lugs of the connecting lock assembly, respectively. Bolts 17 are inserted into the holes and tightened by nuts 16. The tie rod bolt positioning brackets 15, nuts 16, and bolts 17 are used to limit the length and position of the tie rods of the connecting lock assembly.

[0030] The support 1, forward positioning block 5, forward clamping plate 6, clamping screw sleeve 7, spring 8, threaded joint 9, hinge pin 10, and washer 11 are used to position and tighten the connecting lock assembly forward. The crank 2, double-acting screw 3, lateral dividing block 12, and lateral transmission assembly 13 are used to divide the assembly symmetrically. The tie rod bolt positioning bracket 15, nut 16, and bolt 17 are used to limit the length and position of the connecting lock assembly tie rod. The measuring ball support 4 is used to calibrate the equipment. The lifting lug 14 is used for ground adjustment of the connecting lock assembly tie rod length for transporting and adjusting the equipment.

[0031] A method for adjusting the length of a connecting lock assembly rod on the ground, the method comprising the following steps:

[0032] (1) Place the side of the connecting lock assembly with the pull rod downward on the support 1, and position it vertically through the upper surface of the support 1. Place the front end of the connecting lock assembly housing against the positioning surfaces of the two forward positioning blocks 5, rotate the clamping screw sleeve 7, and use the forward clamping plate 6 to clamp the connecting lock assembly.

[0033] (2) Insert the crank handle 2 into the interface on one side of the bidirectional lead screw 3, rotate the crank handle 2, drive the bidirectional lead screw 3 to rotate in the lateral transmission assembly 13, and then drive the lateral pairing blocks 12 on both sides to move to both sides at the same time until the lateral pairing blocks 12 are in contact with the inner surfaces on both sides of the connecting lock assembly housing. Continue to rotate the crank handle 2 so that the central axis of the connecting lock assembly coincides with the central axis of the ground adjustment device, and clamp the connecting lock assembly on the support 1; at this time, the connecting lock assembly is positioned and fixed.

[0034] (3) Rotate the connecting lock assembly to shorten or lengthen the connecting lock rod by shortening or lengthening the connecting lock rod by shortening or lengthening the connecting lock rod by shortening or lengthening the connecting lock rod by shortening or lengthening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening the connecting lock rod by shortening or lengthening ...

[0035] (4) Keep the length of the pull rod unchanged, loosen the nut 16, pull out the bolt 17, loosen the pull rod of the connecting lock assembly, rotate the crank handle 2 in the opposite direction, so that the two lateral blocks 12 move towards the center with the rotation of the bidirectional screw 3 until the lateral blocks 12 are separated from the housing of the connecting lock assembly, rotate the clamping sleeve 7 to loosen the forward clamping plate 6, release the forward positioning and clamping of the housing of the connecting lock assembly, and remove the connecting lock assembly that has returned to a free state.

[0036] The above-described embodiments are merely illustrative of the implementation methods of the present invention, but should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A ground-based adjustment device for the length of a connecting lock assembly rod, characterized in that, The ground adjustment device includes a support (1), a crank (2), a two-way lead screw (3), a forward positioning block (5), a forward clamping plate (6), a clamping screw sleeve (7), a spring (8), a threaded joint (9), a hinge pin (10), a lateral split block (12), a lateral transmission assembly (13), a tie rod bolt positioning bracket (15), a nut (16), and a bolt (17); The support (1) is a rectangular frame structure. A middle frame is provided at the middle position of the upper part of the frame. Through holes are made on the side of the frame connected to both ends of the middle frame. A cantilever beam is fixed at the midpoint of the bottom surface of a side frame parallel to the middle frame. A threaded through hole is made on the side of this side frame. The upper surface of the support (1) is used for the vertical positioning of the lock assembly. Two forward positioning blocks (5) are provided, symmetrically arranged on the upper surface of the support (1) above the cantilever beam. The end faces of the two forward positioning blocks (5) facing the middle frame are the positioning surfaces, used to position the front end of the connecting lock assembly housing. The forward clamping plate (6) is an adjustable clamping structure. Its lower end is hinged to the end of the cantilever beam near the middle frame through a hinge pin (10), allowing it to rotate around the hinge. Its upper end cooperates with the support (1) frame to press the connecting lock assembly housing onto the support (1), so that the front end face of the connecting lock assembly housing is always in contact with the positioning surface of the forward positioning block (5). The clamping screw sleeve (7) is threadedly engaged with the threaded hole on the side frame. Its tail end protrudes from the frame and is fixedly connected to a threaded joint (9). The threaded joint (9) is confined within the forward clamping plate (6) and can rotate within the forward clamping plate (6). By rotating the clamping screw sleeve (7), it can be extended or shortened, thereby driving the forward clamping plate (6) to rotate around the hinge, thereby achieving the clamping and releasing of the connecting lock assembly housing. A spring (8) is fitted on the clamping screw sleeve (7), and the spring (8) is located between the support (1) frame and the forward clamping plate (6) to assist the smoothness of the extension or shortening of the clamping screw sleeve (7). The lateral transmission assembly (13) is a bracket structure, consisting of two identical components symmetrically fixed to the side wall of the middle frame of the support (1) facing the forward positioning block (5), for supporting the bidirectional lead screw (3); the bidirectional lead screw (3) is supported by the two lateral transmission assemblies (13), making it parallel to the upper surface of the support (1), and the bidirectional lead screw (3) can rotate freely within the two lateral transmission assemblies (13); the lateral split blocks (12) consist of two identical components, fitted onto the bidirectional lead screw (3). The two ends are threaded together. When the bidirectional screw (3) rotates, the two lateral blocks (12) move relative to each other or away from each other. The outer end faces of the two lateral blocks (12) are positioning surfaces to ensure that the central axis of the connecting lock assembly coincides with the central axis of the ground adjustment device. At the same time, the outer end faces of the two lateral blocks (12) cooperate with the two side frames of the support (1) to clamp the connecting lock assembly. The crank (2) passes through the through hole on the side of the support (1) and is inserted into one end of the bidirectional screw (3) to rotate the bidirectional screw (3). Two tie rod bolt positioning brackets (15) with the same structure are provided and are symmetrically fixed on the side wall opposite to the support (1) and the forward positioning block (5). The upper end of the two tie rod bolt positioning brackets (15) is provided with through holes for connecting the bearing holes on the two tie rod lugs in the connecting lock assembly respectively. The bolts (17) are inserted into the holes and tightened by the nuts (16). The tie rod bolt positioning brackets (15), nuts (16), and bolts (17) are used to limit the length position of the tie rods in the connecting lock assembly.

2. The ground adjustment device for the length of the connecting lock assembly pull rod according to claim 1, characterized in that, The support (1) is provided with lifting lugs (14) on both sides for handling and adjustment.

3. The ground adjustment device for the length of the connecting lock assembly rod according to claim 1, characterized in that, The support (1) has measuring ball supports (4) at the four corners of its upper surface for calibrating the ground adjustment device.

4. The ground adjustment device for the length of the connecting lock assembly rod according to claim 1, characterized in that, The hinge pin (10) is used in conjunction with the washer (11) to prevent the hinge pin (10) from falling off.

5. A method for adjusting the length of a connecting lock assembly rod on the ground, implemented using a connecting lock assembly rod length adjustment device as described in any one of claims 1-4, characterized in that, The ground adjustment method includes the following steps: Step 1: Place the side of the connecting lock assembly with the pull rod downward on the support (1), and position it vertically through the upper surface of the support (1). Place the front end of the connecting lock assembly housing against the positioning surfaces of the two forward positioning blocks (5), rotate the clamping screw sleeve (7), and clamp the connecting lock assembly with the forward clamping plate (6). Step 2: Insert the crank handle (2) into the interface on one side of the bidirectional lead screw (3), rotate the crank handle (2) to drive the bidirectional lead screw 3 to rotate in the lateral transmission assembly (13), and then drive the lateral opposing blocks (12) on both sides to move to both sides simultaneously until the lateral opposing blocks (12) are in contact with the inner surfaces on both sides of the connecting lock assembly housing. Continue to rotate the crank handle (2) so that the central axis of the connecting lock assembly coincides with the central axis of the ground adjustment device, and clamp the connecting lock assembly on the support (1); at this time, the connecting lock assembly is positioned and fixed. Step 3: Rotate the connecting lock assembly to shorten or lengthen the connecting lock rod by shortening or lengthening the connecting lock rod by rotating the connecting rod sleeve so that the bearing holes on the two connecting rod lugs are concentric with the holes on the two connecting rod bolt positioning brackets (15). Insert the bolt (17) to fix the position of the connecting rod, tighten the bolt (17) with the nut (16), tighten the spare nuts on both sides of the sleeve to tighten the sleeve, fix the length of the connecting rod, and mark the position on the sleeve and the connecting rod for reference in subsequent machine adjustments. Step 4: Keep the length of the pull rod unchanged, loosen the nut (16), pull out the bolt (17), loosen the connecting lock assembly pull rod, rotate the crank handle (2) in the opposite direction, so that the two lateral blocks (12) move towards the center with the rotation of the bidirectional screw (3) until the lateral blocks (12) are separated from the connecting lock assembly housing. Rotate the clamping sleeve (7) to loosen the forward clamping plate (6), release the forward positioning and clamping of the connecting lock assembly housing, and remove the connecting lock assembly that has returned to a free state.

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