Automatic closing-up device for electric supporting rod

Abstract

The invention provides an electric stay bar automatic closing device which comprises a mounting support, a driving electric cylinder, a linear guide rail and an extrusion mechanism, the linear guide rail is fixed on the mounting support, the extrusion mechanism is connected with the linear guide rail in a vertically movable mode, the driving electric cylinder is located above the extrusion mechanism, and a driving shaft is connected with the extrusion mechanism; one end of the downward-pressing guide cylinder is connected with the electric cylinder driving shaft, the other end of the downward-pressing guide cylinder is connected with the extrusion ring, and the bottom of the extrusion ring is provided with the buckling-pressing limiting positioning block; the automatic tightening and assembling device has the advantage that the electric supporting rod is applied to the automatic tightening and assembling process. The phenomenon that the service life of a product is affected due to inconsistent closing depth of the electric supporting rod is avoided; the internal structure is simple in machinery and is a mechanical linkage mechanism, and the structural stability is high; the automatic tightening and assembling device is installed on a servo transplanting assembly, automatic tightening and assembling of the electric supporting rod are achieved, the labor cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of mechanical automation, and more specifically to an automatic closing device for an electric strut. Background Technology

[0002] Currently, the known electric strut closing structure involves manually picking up materials, placing them in a self-made manual fixture, manually pressing the fixture, and controlling the closing point position and depth manually by rotating the angle. This outdated closing fixture is not only inefficient, but also results in uneven closing positions, inconsistent closing depths, and no feedback on closing depth detection. These defects lead to uneven stress points at the closing point, resulting in a low pass rate for tensile stress tests at the closing point and affecting factory production efficiency. Summary of the Invention

[0003] Purpose of the invention: To address the aforementioned problems, this invention discloses an automatic closing device for electric struts. Technical solution

[0004] This invention provides an automatic closing device for an electric strut, comprising a mounting bracket, a drive cylinder, a linear guide rail, and an extrusion structure. The linear guide rail is fixed on the mounting bracket, and the extrusion mechanism is movable up and down and connected to the linear guide rail. The drive cylinder is located above the extrusion mechanism, and the drive shaft is connected to the extrusion mechanism. The extrusion mechanism includes a downward guide cylinder, an extrusion ring, a clamping and limiting positioning block, and a spring clamping block. The extrusion ring has a wedge-shaped structure. One end of the downward guide cylinder is connected to the electric cylinder drive shaft, and the other end is connected to the extrusion ring. The clamping and limiting positioning block is installed at the bottom of the extrusion ring, and several spring clamping blocks are evenly distributed around the inside of the extrusion ring.

[0005] To improve the moving efficiency of the extrusion device, this application also includes a drag chain and a drag chain bracket, wherein the drag chain rod is mounted on a mounting bracket and connected to the extrusion mechanism through the drag chain bracket.

[0006] To detect changes in the compression distance, a displacement sensor is also included, which is installed below the clamping limit positioning block.

[0007] To improve safety, this application also includes a guide rail mounting plate and a fall-prevention toothed groove. The linear guide rail is installed in the guide rail mounting groove, and the mounting bracket has fall-prevention toothed grooves on both sides.

[0008] Furthermore, this application also includes a guide rod and a guide copper sleeve, the guide copper sleeve being sleeved on the guide rod, and the drive electric cylinder and the extrusion ring being connected through the guide rod.

[0009] To detect changes in the compression distance, a measuring rod and a guide sleeve are also included. The measuring rod is movably mounted below the clamping limit positioning block, inserted into the fixed guide sleeve, and connected to a displacement sensor.

[0010] Furthermore, it also includes a lead screw, which is mounted on a mounting bracket and connected to the extrusion mechanism.

[0011] Preferably, it also includes an anti-fall cylinder, an electric cylinder mounting plate, a floating joint, and an electric cylinder connecting plate. The floating joint and the electric cylinder connecting plate are installed at the bottom of the drive shaft of the drive electric cylinder. The electric cylinder mounting plate is connected to the electric cylinder connecting plate. The anti-fall cylinder is installed on the electric cylinder mounting plate and mates with the anti-fall toothed groove. Beneficial effects

[0012] 1. This invention enables the application of electric struts in the automatic tightening assembly process. It prevents inconsistent tightening depths of the electric struts, thus avoiding impacts on product lifespan. 2. This invention achieves a simple internal mechanical structure, consisting entirely of mechanical linkage mechanisms, resulting in high structural stability; 3. By installing this invention on a servo transfer assembly, automatic tightening and assembly of the electric struts is achieved, reducing labor costs and improving production efficiency; 4. It can change the direction of the original force; it has self-locking properties; it has a force-increasing effect; and its structure is relatively compact. Attached Figure Description

[0013] Figure 1 This is a front view of the structure of the electric strut automatic closing device of the present invention.

[0014] Figure 2 This is a side view of the structure of the electric strut automatic closing device of the present invention.

[0015] Figure 3 This is a cross-sectional view of the structure of the electric strut automatic closing device of the present invention.

[0016] In the diagram: 1 is the drive electric cylinder, 2 is the guide rail mounting plate, 3 is the anti-fall toothed groove, 4 is the linear guide rail, 5 is the anti-fall cylinder, 6 is the electric cylinder mounting plate, 7 is the floating joint, 8 is the electric cylinder connecting plate, 9 is the guide rod, 10 is the guide copper sleeve, 11 is the bushing mounting plate, 12 is the cable chain, 13 is the cable chain bracket, 14 is the compression ring, 15 is the clamping limit positioning block, 16 is the downward guide cylinder, 17 is the clamping and pressing cylinder vertical mounting plate, 18 is the base plate, and 19 is the mounting plate. 20 is the clamping plate, 21 is the spring clamping block, 22 is the measuring rod, 23 is the guide sleeve, 24 is the GT displacement sensor, 25 is the product electric support rod, 26 is the plum blossom coupling, 27 is the screw fixed end bearing, 28 is the screw nut, 29 is the ball screw, 30 is the limit buffer seat, 31 is the screw clearance end bearing, 32 is the stiffening plate, and 33 is the guide block. Detailed Implementation

[0017] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The specific implementation methods of the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] This invention provides an automatic closing device for an electric strut, mainly composed of a mounting bracket, a drive cylinder 1, a linear guide rail 4, and an extrusion structure. A guide rail mounting plate 2 is mounted on the mounting bracket, and the linear guide rail 4 is mounted on the guide rail mounting plate 2. The extrusion mechanism is mounted on the linear guide rail 4 and can move up and down. A floating joint 7 and a cylinder mounting plate 6 are mounted on the bottom of the drive shaft of the drive cylinder 1, and the cylinder mounting plate 6 is connected to one end of the guide rod. The other end of the guide rod 9 is connected to the extrusion mechanism. A guide copper sleeve 10 is sleeved on the guide rod 9, and a bushing mounting plate 11 is provided at the connection between the guide rod 9 and the extrusion mechanism.

[0019] Both sides of the mounting bracket are provided with anti-fall toothed grooves 3. The electric cylinder mounting plate 6 is connected to the electric cylinder connecting plate 8, and the anti-fall cylinder 5 is mounted on the electric cylinder mounting plate 6 and cooperates with the anti-fall toothed grooves 3 to prevent falling.

[0020] A drag chain 12 is also installed on one side of the drive cylinder 1. The drag chain 12 is mounted on the mounting bracket and connected to the extrusion mechanism through the drag chain bracket 13.

[0021] The extrusion mechanism mainly consists of an extrusion ring 14, a clamping and limiting positioning block 15, a clamping plate 20, and spring clamping blocks 21. The extrusion ring 14 has a wedge-shaped structure. One end of the downward guide cylinder 16 is connected to the electric cylinder drive shaft, and the other end is connected to the extrusion ring 14. The clamping and limiting positioning block 15 is installed at the bottom of the extrusion ring 14, and the bottom of the clamping and limiting positioning block 15 is an electric support rod. Several spring clamping blocks 21 are evenly distributed around the inside of the extrusion ring 14, and the clamping plate 20 is installed inside the extrusion ring 14. The downward guide cylinder 16 is connected to the vertical mounting plate 17 of the clamping and pressing cylinder, and is connected to the extrusion ring 14 through the vertical mounting plate 17 of the clamping and pressing cylinder.

[0022] A measuring rod 22, a guide sleeve 23, and a GT displacement sensor 24 are installed below the clamping limit positioning block 15. One end of the measuring rod 22 is a telescopic structure and is inserted into the fixed guide sleeve 23, while the other end is connected to the GT displacement sensor 24.

[0023] The extrusion mechanism is also connected to the mounting bracket by a lead screw. The lead screw is mounted on the mounting bracket and connected to the extrusion mechanism. From top to bottom, the lead screw is equipped with a plum blossom coupling 26, a lead screw fixed end bearing 27, a lead screw nut 28, a ball screw 29, a limit buffer seat 30, and a lead screw clearance end bearing 31.

[0024] The bottom of the mounting bracket is provided with guide block 33, mounting plate 19 and base plate 18. Guide block 33 is located on both sides of mounting plate 19. The mounting bracket is connected to base plate 35. The mounting plate 19 is connected to the bottom of base plate 18. Rib plate 32 is provided between base plate and mounting bracket. Example

[0025] The electric strut automatic tightening device of this application is used in automated assembly lines to achieve automatic tightening of the electric struts 25.

[0026] First, the extrusion mechanism is lowered to the closing position by the lead screw. The clamping plate 20 extends downward for positioning and concentricity. Then, the electric cylinder is positioned and lowered by the linear guide rail 4, driving the extrusion ring 14. The extrusion ring 14 compresses the spring clamping block 21 through the arc wedge structure. The up-and-down movement is converted into horizontal movement through the wedge mechanism. The wedge structure amplifies the extrusion force. The spring clamping block 21 and the extrusion ring 14 contact simultaneously, closing the electric support rod 25 of the product.

[0027] The closing point is subjected to uniform force, and the closing displacement is precisely controlled by the servo electric cylinder. A closing point is connected to a closing displacement detection mechanism, which detects the change in the extrusion distance through the measuring rod 22 and feeds it back to the GT sensor to monitor the displacement of the closing point and the safety of the linkage with the extrusion mechanism. After closing, the electric cylinder retracts, and the spring clamping block 21 is reset by the spring tension stress to ensure that the closing mechanism returns to the initial position. Beneficial effects

[0028] The beneficial effects of this invention are: This invention enables the application of electric struts in the automatic tightening assembly process. It eliminates the problem of inconsistent strut end depths, which could affect product lifespan. This invention achieves a simple internal structure, consisting entirely of mechanical linkage mechanisms, resulting in high structural stability; By installing this invention on a servo-transfer assembly, automatic tightening and assembly of the electric struts is achieved, reducing labor costs and improving production efficiency. It can change the direction of the original force; it has self-locking properties; it has a force-increasing effect; and its structure is relatively compact.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. An automatic closing device for an electric strut, characterized in that, It includes a mounting bracket, a drive electric cylinder, a linear guide rail, and an extrusion structure. The linear guide rail is fixed on the mounting bracket. The extrusion mechanism is movable up and down and connected to the linear guide rail. The drive electric cylinder is located above the extrusion mechanism and its drive shaft is connected to the extrusion mechanism. The extrusion mechanism includes a downward guide cylinder, an extrusion ring, a clamping and limiting positioning block, and a spring clamping block. The extrusion ring has a wedge-shaped structure. One end of the downward guide cylinder is connected to the electric cylinder drive shaft, and the other end is connected to the extrusion ring. The clamping and limiting positioning block is installed at the bottom of the extrusion ring, and several spring clamping blocks are evenly distributed around the inside of the extrusion ring.

2. The automatic closing device for the electric strut according to claim 1, characterized in that: It also includes a cable chain and a cable chain bracket, wherein the cable chain rod is mounted on a mounting bracket and connected to the extrusion mechanism via the cable chain bracket.

3. The automatic closing device for the electric strut according to claim 1, characterized in that: It also includes a displacement sensor, which is installed below the clamping limit positioning block.

4. The automatic closing device for the electric strut according to claim 1, characterized in that: It also includes a guide rail mounting plate and a fall-prevention toothed groove. The linear guide rail is installed in the guide rail mounting groove, and the mounting bracket has fall-prevention toothed grooves on both sides.

5. The automatic closing device for the electric strut according to claim 1, characterized in that: It also includes a guide rod and a guide copper sleeve, the guide copper sleeve being fitted onto the guide rod, and the drive electric cylinder and the extrusion ring being connected through the guide rod.

6. The automatic closing device for the electric strut according to claim 1, characterized in that: It also includes a measuring rod and a guide sleeve. The measuring rod is movably installed below the clamping limit positioning block, inserted into the fixed guide sleeve, and connected to the displacement sensor.

7. The automatic closing device for the electric strut according to claim 1, characterized in that: It also includes a lead screw, which is mounted on a mounting bracket and connected to the extrusion mechanism.

8. The automatic closing device for the electric strut according to claim 1, characterized in that: It also includes a fall-prevention cylinder, an electric cylinder mounting plate, a floating joint, and an electric cylinder connecting plate. The floating joint and the electric cylinder connecting plate are installed at the bottom of the drive shaft of the electric cylinder. The electric cylinder mounting plate is connected to the electric cylinder connecting plate. The fall-prevention cylinder is installed on the electric cylinder mounting plate and mates with the fall-prevention toothed groove.

Images