Lateral suction locking mechanism with torque

Abstract

The invention provides a lateral suction locking mechanism with torque, which comprises a rack, a tightening gun, a sleeve assembly and a telescopic control assembly, a positioning shaft sleeve is arranged on the rack, one end of the sleeve assembly is connected to the output end of the tightening gun, the other end of the sleeve assembly penetrates through the positioning shaft sleeve and is used for holding a screw, and the tightening gun is used for controlling the sleeve assembly to rotate; therefore, the screw is assembled on the workpiece. Wherein the sleeve assembly is provided with a telescopic part, the telescopic control assembly is connected with the telescopic part and used for controlling the telescopic part to stretch out and draw back relative to the positioning shaft sleeve, the telescopic control assembly is provided with an elastic unit, and when the telescopic control assembly controls the telescopic part to contract, the elastic unit can be synchronously extruded and contracted; and the elastic unit can provide torque for the telescopic part, so that the sleeve assembly can press the screw on the workpiece, the screw can be conveniently locked, and the assembly precision is higher.

Description

Technical Field

[0001] The invention relates to the technical field of assembly equipment, and in particular to a lateral absorption locking mechanism with torque. Background Art

[0002] The existing screw locking mechanism is usually locked in the vertical direction, and the screw is held by a magnetic sleeve, which has the following disadvantages:

[0003] 1. It is not suitable for non-magnetic screws and workpieces that need to be tightened laterally;

[0004] 2. When tightening the screw, the sleeve does not press the screw on the workpiece, resulting in poor assembly accuracy;

[0005] 3. A driving mechanism is required to move the locking mechanism to adjust the verticality to align the workpiece, and the assembly method is complicated and the efficiency is low.

[0006] In view of this, the applicant filed this application after studying the existing technology. Summary of the invention

[0007] The present invention provides a lateral absorption locking mechanism with torque, aiming to improve at least one of the above-mentioned technical problems.

[0008] In order to solve the above technical problems, the present invention provides a lateral suction locking mechanism with torque, including a suction locking mechanism body, the body including a frame and a tightening gun, and also including a sleeve assembly and a telescopic control assembly. A positioning sleeve is provided on the frame, one end of the sleeve assembly is connected to the output end of the tightening gun, and the other end passes through the positioning sleeve for holding the screw, and the tightening gun is used to control the rotation of the sleeve assembly to assemble the screw to the workpiece; the sleeve assembly is provided with a telescopic part, and the telescopic control assembly is connected to the telescopic part for controlling the telescopic part to retract relative to the positioning sleeve, and the telescopic control assembly is provided with an elastic unit. When the telescopic control assembly controls the telescopic part to retract, the elastic unit can be synchronously squeezed and contracted, so that when assembling the screw, the elastic unit can provide torque to the telescopic part so that the sleeve assembly can press the screw onto the workpiece.

[0009] As a further optimization, the telescopic part is provided with a positioning part and a movable part.

[0010] The positioning portion is configured to be adapted to be slidably connected with the positioning sleeve, so that when the positioning portion passes through the positioning sleeve, the telescopic portion and the positioning sleeve are in a coaxial state;

[0011] The movable portion is configured such that when the movable portion passes through the positioning sleeve, the telescopic portion can be deflected relative to the positioning sleeve.

[0012] As a further optimization, the sleeve assembly is further provided with a universal joint, one end of which is connected to the telescopic part, and the other end of which is connected to the tightening gun.

[0013] As a further optimization, the telescopic portion and the telescopic control assembly are connected via a spherical joint bearing.

[0014] As a further optimization, the telescopic control assembly includes a connecting seat, a connecting piece, a sliding drive unit and an elastic unit, the connecting seat is connected to the telescopic part, the connecting piece is fixedly connected between the connecting seat and the elastic unit, the elastic fixed unit is arranged on the frame, and the sliding drive unit is arranged between the frame and the connecting seat.

[0015] As a further optimization, a through slot is provided on the frame, and the elastic unit includes a spring, one end of the spring is fixedly connected to the inner wall of the through slot, and the other end is abutted against the connecting piece.

[0016] As a further optimization, a pin is coaxially arranged on the inner side of the spring, and one end of the pin is fixed on the inner wall of the through groove.

[0017] As a further optimization, a photoelectric switch is provided on the connecting seat, and a sensor sheet is provided on the frame.

[0018] As a further optimization, the sleeve assembly includes a sleeve head, a connecting rod and a vacuum air pipe joint, one end of the sleeve head is connected to one end of the connecting rod, and the other end of the sleeve head is provided with a slot for holding a screw; a first negative pressure hole connected to the output end of the vacuum air pipe joint is provided in the connecting rod, and a second negative pressure hole connecting the first negative pressure hole and the slot is provided in the sleeve head.

[0019] As a further optimization, the sleeve assembly further includes a connecting sleeve, and the connecting sleeve is installed between the sleeve head and the connecting rod.

[0020] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0021] 1. The present application provides a torque-assisted lateral suction locking mechanism, which can realize lateral locking of non-magnetic screws onto a workpiece by horizontally arranging a sleeve assembly and cooperating with a negative pressure slot to suck the screw;

[0022] 2. The mechanism is provided with a telescopic part and a telescopic control assembly, and stores potential energy by squeezing the elastic unit when the telescopic part contracts. When the screw is assembled, the elastic unit provides a torque to the telescopic part, so that the screw can be stably pressed on the workpiece, which is convenient for locking and has higher precision.

[0023] 3. By arranging the positioning part and the movable part on the telescopic part, in conjunction with the positioning sleeve, the sleeve assembly can be self-positioned and stable when holding the screw, and can be separated from the positioning sleeve when tightening the screw, and cooperate with the spherical joint bearing at the tail end to achieve a certain angle of deflection, thereby reducing the verticality requirements between the mechanism and the workpiece, reducing the process of adjusting the overall angle of the mechanism, and being more efficient;

[0024] 4. The sleeve assembly is connected to the tightening gun by a universal joint, which can reduce the coaxiality requirement of the sleeve assembly and the tightening gun. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a three-dimensional structural schematic diagram of a lateral suction locking mechanism with torque of the present invention;

[0027] Figure 2 It is a side structural schematic diagram of a torque lateral suction locking mechanism of the present invention;

[0028] Figure 3 It is a partial cross-sectional structural schematic diagram of a lateral suction locking mechanism with torque of the present invention;

[0029] Figure 4 The present invention Figure 3 The enlarged schematic diagram at A in the middle;

[0030] Figure 5 It is a schematic diagram of the top view of the structure of a lateral suction locking mechanism with torque of the present invention.

[0031] Markings in the figure: 1. frame; 2. tightening gun; 3. sleeve assembly; 4. telescopic control assembly; 5. positioning sleeve; 6. sleeve head; 7. connecting sleeve; 8. connecting rod; 9. vacuum air pipe joint; 10. notch; 11. first negative pressure hole; 12. second negative pressure hole; 13. screw; 14. connecting seat; 15. connecting piece; 16. spring; 17. slider; 18. electric slide; 19. pin; 20. positioning part; 21. movable part; 22. spherical joint bearing; 23. universal joint; 24. first inclined part; 25. second inclined part; 26. photoelectric switch; 27. sensor sheet; 28. through groove. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0033] Depend on Figures 1 to 5 As shown, an embodiment of the present invention provides a lateral suction locking mechanism with torque, including a suction locking mechanism body, the body including a frame 1 and a tightening gun 2, the frame 1 is connected to one side of the tightening gun 2, and also includes a sleeve assembly 3 and a telescopic control assembly 4, a positioning sleeve 5 is provided on the frame 1, one end of the sleeve assembly 3 is connected to the output end of the tightening gun 2, and the other end passes through the positioning sleeve 5 for holding a screw 13, and the tightening gun is used to control the rotation of the sleeve assembly 3 to assemble the screw 13 to the workpiece. The sleeve assembly 3 includes a sleeve head 6, a connecting sleeve 7, a connecting rod 8 and a vacuum air pipe joint 9. The other end of the sleeve head 6 is provided with a notch 10 for holding a screw 13; the connecting rod 8 is provided with a first negative pressure hole 11 connected to the output end of the vacuum air pipe joint 9, and the sleeve head 6 is provided with a second negative pressure hole 12 connected to the first negative pressure hole 11 and the notch 10. When working, the vacuum air pipe joint 9 is connected to the first negative pressure hole 11 and the second negative pressure hole 12 through an external vacuum solenoid valve (not shown in the figure), and then generates suction at the notch 10, so that the screw 13 is held at the notch 10 for assembly. The connecting rod 8 and the sleeve head 6 are connected and sealed by the connecting sleeve 7, and the sleeve head 6 can be replaced according to the model of the screw 13 to be held.

[0034] Preferably, in this embodiment, the positioning sleeve 5 and the sleeve assembly 3 are both arranged in a transverse direction, and can be suitable for holding the non-magnetic screw 13 by means of sucking the screw 13, so that the suction locking mechanism can realize the lateral installation of the screw 13. Among them, the suction locking mechanism can also move the overall position to the position of the workpiece installation screw 13 through the connection position driving mechanism (not shown in the figure) to assemble the screw 13, which will not be described in detail here.

[0035] Preferably, the sleeve assembly 3 is provided with a telescopic part, and the telescopic control assembly 4 is connected to the telescopic part, and is used to control the telescopic part to telescope relative to the positioning sleeve 5. The telescopic control assembly 4 is provided with an elastic unit. When the telescopic control assembly 4 controls the telescopic part to contract, it can synchronously squeeze and contract the elastic unit to generate potential energy, so that when the screw 13 is assembled, the driving source for contracting the elastic unit stops outputting, so that the elastic unit can provide torque to the telescopic part to press the screw 13 onto the workpiece. Preferably, the telescopic part includes a connecting rod 8, a sleeve head 6 and a connecting sleeve 7; the telescopic control assembly 4 includes a connecting seat 14, a connecting member 15, a sliding drive unit and an elastic unit. The connecting seat 14 is arranged in a T shape and is connected to the connecting rod 8 in the telescopic part at the lower part. The connecting member 15 is fixedly connected and arranged between the connecting seat 14 and the elastic unit. The elastic fixing unit is arranged on the frame 1, and the sliding drive unit is arranged between the frame 1 and the connecting seat 14. Among them, the elastic unit is a spring 16, and there are two of them in this embodiment. A through slot 28 is provided on the frame 1, one end of the spring 16 is fixedly connected to the inner wall of the through slot 28, and the other end is arranged to abut against the connecting member 15. Further, in this embodiment, the sliding drive unit is a combination of a slider 17 and an electric slide 18, the slider 17 is fixedly installed at the bottom of the frame 1, and the electric slide 18 is fixedly installed on the connecting seat 14, and the two are driven to move relative to each other, so that the connecting seat 14 moves laterally relative to the frame 1, so that the spring 16 is squeezed by the connecting member 15 to generate potential energy and provide torque, and then when the screw 13 contacts the mounting hole of the workpiece, the electric slide 18 closes the torque of the control slider 17, so that the sliding drive unit is used as a moving pair, and at this time, the elastic unit provides a torque to first tightly abut the screw 13 with the mounting hole at the port to avoid the problem of reduced connection accuracy caused by loosening, and then the mechanism body continues to approach the workpiece, and the spring 16 continues to contract, and can tightly press the screw 13 at the mounting hole for installation. Among them, in other embodiments, the sliding drive unit can also be driven by other moving pairs, such as the slide rail slider 17 in conjunction with the cylinder, which will not be elaborated here.

[0036] Further, a pin 19 is coaxially arranged inside the spring 16, and one end of the pin 19 is fixedly arranged on the inner wall of the through groove 28. By arranging the pin 19, a certain guiding effect can be provided to the spring 16, making it more stable.

[0037] Preferably, the telescopic part is provided with a positioning part 20 and a movable part 21, and the positioning part 20 is constructed to be suitable for sliding connection with the positioning sleeve 5, so that when the positioning part 20 passes through the positioning sleeve 5, the telescopic part and the positioning sleeve 5 are in a coaxial state; in the present embodiment, the positioning part 20 is set as a section of the connecting rod 8 whose diameter is the same as the inner diameter of the positioning sleeve 5, so that when the positioning part 20 is located in the positioning sleeve 5, the sleeve assembly 3 can be self-positioned and kept stable, and then it can be aligned when the screw 13 is sucked, and it can also strengthen the accuracy of docking with the workpiece mounting hole, thereby docking the screw 13.

[0038] Furthermore, the movable portion 21 is configured such that when the movable portion 21 passes through the positioning sleeve 5, the telescopic portion can deflect relative to the positioning sleeve 5. In this embodiment, the movable portion 21 is configured such that the diameter of this section of the connecting rod 8 is smaller than the inner diameter of the sleeve, so that the connecting rod 8 can move relative to the positioning sleeve 5. In other embodiments, a sphere with the same diameter can also be used as a connection point, which can also move relatively, and no further explanation is given here.

[0039] Further, the telescopic part is connected to the telescopic control assembly 4 through a spherical joint bearing 22. That is, the end side of the connecting rod 8 away from the sleeve head 6 is fixedly connected through the spherical joint bearing 22, so that it serves as a fulcrum. Further, the sleeve assembly 3 is also provided with a universal joint 23, one end of the universal joint 23 is connected to the tail end of the connecting rod 8, and the other end is connected to the tightening gun 2, so that the tail end of the connecting rod 8 serves as a control point, so that when the tightening gun 2 drives the connecting rod 8 through the universal joint 23, the connecting rod 8 can have a certain degree of activity, and a certain angle of deflection can be achieved. Then, after the screw 13 is aligned with the mounting hole, the torque of pressing the screw 13 is increased during the process of compressing and contracting the elastic unit against the workpiece, the movable part 21 is in the positioning sleeve 5, the sleeve assembly 3 is in an active state, and the tightening gun 2 applies torque. When the step of further locking the screw 13 is performed, the verticality requirement of the suction locking mechanism and the workpiece can be reduced, and the sleeve assembly 3 can better assemble the screw 13 to the workpiece. Among them, the universal joint 23 can reduce the coaxiality requirement of the sleeve assembly 3 and the tightening gun 2. Its specific structure is the existing technology and will not be described in detail here.

[0040] Specifically, when the telescopic control assembly 4 controls the telescopic part to retract, the spring 16 is squeezed to store potential energy, the positioning part 20 on the connecting rod 8 is located at the position passing through the positioning sleeve 5, and the screw 13 is initially docked at the installation point of the workpiece. The sliding drive unit stops driving to provide force, so that the potential energy of the spring 16 itself provides a lateral torque for the sleeve assembly 3, so that it can stably press the screw 13 on the port of the mounting hole, and then continue to let the mechanism body approach the workpiece, and the pressing torque continues to increase, so that the movable part 21 is located at the positioning sleeve 5. Since the connecting rod 8 is not limited by the positioning sleeve 5, it can be deflected at a certain angle, so that the sleeve assembly 3 can better dock with the workpiece, so that the screw 13 can be accurately tightened by the tightening gun 2.

[0041] Furthermore, in the present embodiment, in order to facilitate the smooth conversion of the positioning portion 20 and the activity, a first inclined portion 24 with a gradually changing diameter is provided at the connecting rod 8 between the positioning portion 20 and the connecting portion, and at the same time, a second inclined portion 25 with an inner diameter gradually increasing outward is provided at the inner end of the positioning sleeve 5, that is, at the end close to the positioning portion 20, so that when the positioning portion 20 is to be inserted into the positioning sleeve 5, it plays a guiding role and facilitates docking.

[0042] Preferably, in order to more accurately determine the position of the connecting base 14 relative to the frame 1, a photoelectric switch 26 is provided on the connecting base 14, and a sensor sheet 27 is provided on the frame 1, so as to determine whether the connecting base 14 and the sleeve assembly 3 return to the initial position for the next assembly.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A lateral suction locking mechanism with torque, comprising a suction locking mechanism body, wherein the body comprises a frame and a tightening gun, characterized in that: It also includes a sleeve assembly and a telescopic control assembly, wherein a positioning sleeve is arranged on the frame, one end of the sleeve assembly is connected to the output end of the tightening gun, and the other end passes through the positioning sleeve for holding the screw, and the tightening gun is used to control the rotation of the sleeve assembly to tighten the screw onto the workpiece; The sleeve assembly is provided with a telescopic part, and the telescopic control assembly is connected to the telescopic part for controlling the telescopic part to be telescoped relative to the positioning sleeve. The telescopic control assembly is provided with an elastic unit. When the telescopic control assembly controls the telescopic part to contract, the elastic unit can be synchronously squeezed and contracted, so that when assembling the screw, the elastic unit can provide torque to the telescopic part, so that the sleeve assembly can press the screw onto the workpiece.

2. A torque lateral suction locking mechanism according to claim 1, characterized in that The telescopic portion is provided with a positioning portion and a movable portion. The positioning portion is configured to be adapted to be slidably connected with the positioning sleeve, so that when the positioning portion passes through the positioning sleeve, the telescopic portion and the positioning sleeve are in a coaxial state; The movable portion is configured such that when the movable portion passes through the positioning sleeve, the telescopic portion can be deflected relative to the positioning sleeve.

3. A torque lateral suction locking mechanism according to claim 2, characterized in that The sleeve assembly is also provided with a universal joint, one end of which is connected to the telescopic part, and the other end is connected to the tightening gun.

4. A torque lateral suction locking mechanism according to claim 3, characterized in that The telescopic part and the telescopic control assembly are connected through a spherical joint bearing.

5. A torque lateral suction locking mechanism according to claim 1, characterized in that The telescopic control assembly includes a connecting seat, a connecting piece, a sliding drive unit and an elastic unit. The connecting seat is connected to the telescopic part, the connecting piece is fixedly connected between the connecting seat and the elastic unit, the elastic fixing unit is arranged on the frame, and the sliding drive unit is arranged between the frame and the connecting seat.

6. A torque lateral suction locking mechanism according to claim 5, characterized in that A through slot is provided on the frame, and the elastic unit includes a spring, one end of the spring is fixedly connected to the inner wall of the through slot, and the other end is abutted against the connecting piece.

7. A torque lateral suction locking mechanism according to claim 6, characterized in that A pin is coaxially arranged on the inner side of the spring, and one end of the pin is fixed on the inner wall of the through groove.

8. A torque lateral suction locking mechanism according to claim 5, characterized in that , a photoelectric switch is arranged on the connecting seat, and a sensor sheet is arranged on the frame.

9. A torque lateral suction locking mechanism according to claim 1, characterized in that The sleeve assembly includes a sleeve head, a connecting rod and a vacuum air pipe joint, one end of the sleeve head is connected to one end of the connecting rod, and the other end of the sleeve head is provided with a slot for holding a screw; a first negative pressure hole connected to the output end of the vacuum air pipe joint is provided in the connecting rod, and a second negative pressure hole connecting the first negative pressure hole and the slot is provided in the sleeve head.

10. A torque lateral suction locking mechanism according to claim 9, characterized in that The sleeve assembly also includes a connecting sleeve, which is installed between the sleeve head and the connecting rod.

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