Reaction force arm

Abstract

The invention discloses a counter-acting force arm which comprises a fixedly-arranged stand column, a lifting module installed on the stand column and a transverse extending arm installed on the lifting module, the lifting module can ascend, descend and rotate relative to the stand column, a fixing base for fixing a screw locking machine is arranged on the transverse extending arm, and a rotating base is pivoted to the top of the stand column. A motor is installed on the rotating seat, a motor shaft is fixedly connected with the stand column, a motor shell is fixedly connected with the rotating seat, a vertical auxiliary rod is fixed to the rotating seat, the lifting module is matched with the vertical auxiliary rod, and the lifting module can ascend and descend along the vertical auxiliary rod; and a stretching device is arranged between the rotating seat and the lifting module. According to the counter-acting force arm, the transverse extension arm is driven to rotate through counter-acting force generated by rotation of the motor shaft, horizontal swing and lifting of the screw locking machine on the transverse extension arm are achieved, and the counter-acting force arm belongs to a small-body large effect.

Description

Technical Field

[0001] This invention relates to production auxiliary equipment, specifically to screw-tightening auxiliary equipment. Background Technology

[0002] The screw fastening device uses an automatic screw fastening machine. Compared to manual screw fastening tools, automatic screw fastening machines are heavier, but they are more convenient and efficient. However, due to their weight, workers need to hold the automatic screw fastening machine for extended periods, resulting in significant physical exertion and making it difficult to sustain. While a suspension mechanism could solve these technical problems, it is not suitable for workshops with limited operating space due to its large footprint. Summary of the Invention

[0003] The technical problem solved by this invention is that, in situations where workshop operating space is limited, the suspension mechanism occupies a large space and is not suitable for the suspension of automatic screw fastening machines.

[0004] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a reaction arm, comprising a column, a lifting module mounted on the column, and a lateral extension arm mounted on the lifting module. The lifting module is capable of lifting, lowering, and rotating relative to the column. The lateral extension arm is provided with a fixing seat for fixing a screw-locking machine. The column is fixed to a base. A rotating seat is pivotally connected to the top of the column. A first motor is mounted on the rotating seat. The rotating shaft of the first motor is fixedly connected to the column. The housing of the first motor is fixedly connected to the rotating seat. A vertical auxiliary rod is fixed to the rotating seat. The vertical auxiliary rod is parallel to the column. The lifting module cooperates with the vertical auxiliary rod, and the lifting module is capable of lifting and lowering along the vertical auxiliary rod. A tensioning device is provided between the rotating seat and the lifting module.

[0005] According to the above technical solution, driven by the stretching device, the lifting module rises and falls along the column and the vertical auxiliary rod, and the lateral extension arm rises and falls accordingly, as does the screw fastening machine. The first motor's shaft rotates; since the column is fixedly installed, the first motor's shaft is fixedly connected to the column. Therefore, the first motor's housing rotates, causing the rotating seat to rotate. The rotating seat rotates around the column, which in turn causes the vertical auxiliary rod to rotate. The vertical auxiliary rod then causes the lifting module to rotate around the column, which in turn causes the lateral extension arm to rotate, and the lateral extension arm causes the screw fastening machine to rotate. Thus, driven by the stretching device and the first motor, the screw fastening machine can both rise and rotate to assist workers in fastening screws on products.

[0006] Because this invention uses a column and a horizontally extending arm to support the screw fastening machine, it occupies little space and is especially suitable for places with limited operating space.

[0007] The top of the column is equipped with a fixed connector, on which a bearing is installed. The rotating seat is installed on the outer ring of the bearing. The shaft of the first motor is connected to the fixed connector through a first coupling. Thus, the shaft of the first motor is fixedly connected to the column, while the rotating seat can rotate around the column.

[0008] The housing of the first motor is fixed to the connecting plate, and the connecting plate is fixedly connected to the rotating base by bolts. In this way, the housing of the first motor and the rotating base are fixedly connected.

[0009] The lifting module is fixed with a lifting module auxiliary component. A vertical auxiliary rod cooperates with the lifting module auxiliary component, allowing the lifting module auxiliary component to rise and fall along the vertical auxiliary rod. Thus, when the lifting module rises and falls, the lifting module auxiliary component moves accordingly; when the first motor drives the rotating base to rotate, the vertical auxiliary rod drives the lifting module and the lifting module auxiliary component to rotate.

[0010] A lifting limit block is pivotally connected to the column, and the vertical auxiliary rod is fixedly connected to the lifting limit block. The lifting module is located between the rotating seat and the lifting limit block. The lifting limit block restricts the lifting range of the lifting module; however, the lifting limit block moves with the vertical auxiliary rod and does not prevent the lifting module from rotating around the column.

[0011] The tensioning device employs a winch. A pull lug is mounted on the rotating base, and a shaft is mounted on the pull lug. A ring-shaped component is fitted onto the shaft, loosely engaging with it and connecting to the winch housing. Thus, raising the winch allows it to be lifted to a certain height. This allows the worker to adjust the screw-fastening machine's height based on their own condition (e.g., fatigue level, strength) without starting the winch, thus enabling the machine to be raised to a suitable height.

[0012] A wire encoder is installed on the rotating base, and the wire of the encoder is connected to the lifting module. The signal generated by the wire encoder is fed back to the main control unit, which displays the signal on a screen, allowing workers to know the height of the lifting module. Both the main control unit and the display screen are mounted on the fixed base for easy worker observation.

[0013] The lateral extension arm includes a large arm and a small arm. The small arm is hinged to the large arm via a hinge shaft. A second motor is fixed on the large arm. The rotating shaft of the second motor is connected to the hinge shaft via a second coupling. Driven by the second motor, the hinge shaft drives the small arm to rotate relative to the large arm.

[0014] The present invention has the following technical effects:

[0015] First, the reaction arm of the present invention has a main structure of a column and a lateral extension arm, which has strong adaptability and is especially suitable for places with limited operating space.

[0016] Secondly, the reaction arm of the present invention uses the reaction force of the rotating motor shaft to drive the rotation of the transverse extension arm, thereby realizing the horizontal swing and lifting of the screw fastening machine on the transverse extension arm. It is a small size with great function. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the reaction arm;

[0018] Figure 2 for Figure 1 A partial exploded view;

[0019] Figure 3 This is a schematic diagram from another perspective of the reaction arm.

[0020] Explanation of symbols in the diagram:

[0021] 10. Column; 11. Base; 12. Fixing connector; 13. Bearing; 14. Lifting limit block;

[0022] 20. Lifting module; 21. Tensioning device; 22. Lifting module auxiliary parts; 23. Cable encoder;

[0023] 30. Fixture;

[0024] 40. Rotary seat; 41. First motor; 42. Vertical auxiliary rod; 43. First coupling; 44. Connecting plate; 45. Bolt; 46. Pull lug; 47. Ring component;

[0025] 51. Boom; 52. Arm; 53. Second motor; 54. Second coupling; 55. Arm swing amplitude limit plate;

[0026] 90. Screw fastening machine. Detailed Implementation

[0027] like Figure 1 A reaction arm includes a column 10, a lifting module 20 mounted on the column, and a lateral extension arm mounted on the lifting module. The lifting module is capable of lifting, lowering, and rotating relative to the column. The lateral extension arm is provided with a fixing seat 30 for fixing a screw-locking machine 90. The column is fixed to a base 11. A rotating seat 40 is pivotally connected to the top of the column. A first motor 41 is mounted on the rotating seat. The shaft of the first motor is fixedly connected to the column. The housing of the first motor is fixedly connected to the rotating seat. A vertical auxiliary rod 42 is fixed to the rotating seat. The vertical auxiliary rod is parallel to the column. The lifting module cooperates with the vertical auxiliary rod, and the lifting module can lift and lower along the vertical auxiliary rod. A tensioning device 21 is provided between the rotating seat 40 and the lifting module 20.

[0028] Combination Figure 1 , Figure 2The top of the column 10 is provided with a fixed connector 12, on which a bearing 13 is installed. The rotating seat 40 is installed on the outer ring of the bearing. The shaft of the first motor 41 is connected to the fixed connector through the first coupling 43.

[0029] like Figure 2 The housing of the first motor 41 is fixed on the connecting plate 44, and the connecting plate is fixedly connected to the rotating seat 40 by bolts 45.

[0030] like Figure 1 , Figure 3 The lifting module 20 is fixed with a lifting module auxiliary component 22. The vertical auxiliary rod 42 cooperates with the lifting module auxiliary component, and the lifting module auxiliary component can be raised and lowered along the vertical auxiliary rod.

[0031] like Figure 1 A lifting limit block 14 is pivotally connected to the column 10, and the vertical auxiliary rod 42 is fixedly connected to the lifting limit block. The lifting module 20 is located between the rotating seat 40 and the lifting limit block.

[0032] like Figure 1 , Figure 2 The tensioning device 21 is a winch. The rotating seat 40 is provided with a pull lug 46, the pull lug is provided with a shaft, and an annular part 47 is sleeved on the shaft. The annular part is loosely fitted with the shaft and is connected to the housing of the winch.

[0033] like Figure 1 The rotating base 40 is equipped with a wire encoder 23, and the wire of the wire encoder is connected to the lifting module 20.

[0034] like Figure 1 The lateral extension arm includes a large arm 51 and a small arm 52. The small arm is hinged to the large arm via a hinge shaft. A second motor 53 is fixed on the large arm. The rotating shaft of the second motor is connected to the hinge shaft via a second coupling 54. Driven by the second motor, the hinge shaft drives the small arm to rotate relative to the large arm.

[0035] In actual operation, driven by the stretching device 21, the lifting module 20 rises and falls along the column 10 and the vertical auxiliary rod 42, and the lateral extension arm rises and falls accordingly, as does the screw fastening machine 90. The shaft of the first motor 41 rotates. Since the column 10 is fixedly set, the shaft of the first motor 41 is fixedly connected to the column. Therefore, the housing of the first motor rotates, driving the rotating seat 40 to rotate. The rotating seat rotates around the column 10, driving the vertical auxiliary rod 42 to rotate. The vertical auxiliary rod drives the lifting module 20 to rotate around the column 10, the lifting module drives the lateral extension arm to rotate, and the lateral extension arm drives the screw fastening machine 90 to rotate. Thus, driven by the stretching device 21 and the first motor 41, the screw fastening machine 90 can rise, fall, and rotate to assist workers in fastening screws on products.

[0036] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. A reaction arm, comprising a column (10), a lifting module (20) mounted on the column, and a lateral extension arm mounted on the lifting module, wherein the lifting module is capable of lifting, lowering, and rotating relative to the column, and the lateral extension arm is provided with a fixing seat (30) for fixing a screw fastening machine (90), characterized in that: The column is fixed on the base (11), and a rotating seat (40) is pivotally connected to the top of the column. A first motor (41) is installed on the rotating seat. The shaft of the first motor is fixedly connected to the column, and the housing of the first motor is fixedly connected to the rotating seat. A vertical auxiliary rod (42) is fixed on the rotating seat. The vertical auxiliary rod is parallel to the column. The lifting module cooperates with the vertical auxiliary rod, and the lifting module can lift and lower along the vertical auxiliary rod. A tensioning device (21) is provided between the rotating seat (40) and the lifting module (20).

2. The reaction arm as described in claim 1, characterized in that: The top of the column (10) is provided with a fixed connector (12), and a bearing (13) is installed on the fixed connector. The rotating seat (40) is installed on the outer ring of the bearing. The shaft of the first motor (41) is connected to the fixed connector through the first coupling (43).

3. The reaction arm as described in claim 1, characterized in that: The housing of the first motor (41) is fixed on the connecting plate (44), and the connecting plate is fixedly connected to the rotating seat (40) by bolts (45).

4. The reaction arm as described in claim 1, characterized in that: The lifting module (20) is fixed with a lifting module auxiliary component (22), and the vertical auxiliary rod (42) cooperates with the lifting module auxiliary component, so that the lifting module auxiliary component can be raised and lowered along the vertical auxiliary rod.

5. The reaction arm as described in claim 1, characterized in that: A lifting limit block (14) is pivotally connected to the column (10), and the vertical auxiliary rod (42) is fixedly connected to the lifting limit block. The lifting module (20) is located between the rotating seat (40) and the lifting limit block.

6. The reaction arm as described in claim 1, characterized in that: The tensioning device (21) is a winch. The rotating seat (40) is provided with a pull lug (46). The pull lug is provided with a shaft. An annular part (47) is sleeved on the shaft. The annular part is loosely fitted with the shaft and is connected to the housing of the winch.

7. The reaction arm as described in claim 1, characterized in that: A pull-wire encoder (23) is provided on the rotating base (40), and the pull wire of the pull-wire encoder is connected to the lifting module (20).

8. The reaction arm as described in claim 1, characterized in that: The lateral extension arm includes a large arm (51) and a small arm (52). The small arm is hinged to the large arm via a hinge shaft. A second motor (53) is fixed on the large arm. The rotating shaft of the second motor is connected to the hinge shaft via a second coupling (54). Under the drive of the second motor, the hinge shaft drives the small arm to rotate relative to the large arm.

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