Stepping motor assembling mechanism special for speed regulator

Abstract

The utility model discloses a special stepping motor assembling mechanism for a speed regulator, which comprises a support and a support disc fixed at the top of the support, a shaft bracket is arranged in the support below the support disc, and a screw rod lifting structure is arranged at the bottom end of the shaft bracket. A right-angle plate used for supporting a speed regulator to-be-assembled workpiece is installed at the movable end of the lead screw lifting structure, and a first stepping motor used for driving the lead screw lifting structure to work is installed at the center position of the top end of the support. The speed regulator end cover and the shell are actively lifted through the first stepping motor and the lead screw lifting structure, bolts are actively tightened through the second stepping motor and the elastic contact structure, the whole assembling process is more efficient, workers do not need to continuously operate an electric screwdriver for a long time, dependence on manpower is reduced, and the assembling efficiency is improved. And the labor intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of speed regulator assembly, in particular to a stepping motor assembly mechanism dedicated to a speed regulator. Background Art

[0002] The connection between the governor cover and the housing is usually threaded. This mechanical connection method achieves a tight connection between parts through the engagement of threads, and bolts and nuts are important components for fixing this connection. By tightening the nuts, the bolts generate tension to firmly fix the governor cover and the housing together. During the specific assembly, the governor cover is installed on the housing by using an electric screwdriver to operate the bolts and nuts. In this step, care should be taken to ensure that the bolts and nuts are installed correctly, while maintaining a moderate tightening force to prevent the parts from loosening or over-tightening. The purpose of adjusting the tightening force is to ensure that each bolt and nut are firmly connected together. This can be achieved by adjusting the torque of the electric screwdriver. However, the current speed regulator end cover and housing require workers to manually operate the electric screwdriver and apply downward force during the assembly process. That is, manual operation of the electric screwdriver requires workers to constantly tighten and loosen the electric screwdriver, while also applying downward force to ensure that the bolts and nuts are correctly fixed. This mode of operation requires workers to maintain a certain strength and endurance. Long-term repetitive operations can easily lead to increased labor intensity, which increases the physical consumption and labor intensity of workers. In the case of mass production or large-scale assembly, the efficiency of manually operated electric screwdrivers is obviously difficult to meet production needs. Utility Model Content

[0003] The purpose of the utility model is to provide a stepper motor assembly mechanism dedicated to a speed regulator, which can actively raise the end cover and the housing of the speed regulator through a stepper motor and a screw lifting structure, and actively tighten the bolts through a stepper motor and an elastic contact structure, so as to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stepper motor assembly mechanism dedicated to the speed regulator, comprising a bracket and a support plate fixed on the top of the bracket, an axis frame is installed inside the bracket below the support plate, and a screw lifting structure is provided at the bottom end of the axis frame, and a right-angle plate for supporting the workpiece to be assembled of the speed regulator is installed at the movable end of the screw lifting structure, a stepper motor 1 for driving the screw lifting structure to work is installed at the center position of the top end of the bracket, a pad is fixed on the outer wall of one side of the axis frame, and a protective shell is installed on the outer wall of the side of the pad away from the axis frame, a stepper motor 2 is installed on the outer wall of one side of the protective shell, and an elastic contact structure for applying a torsional force to the bolt is installed at the output end of the stepper motor 2.

[0005] Preferably, a T-seat is installed on one side of the top end of the support plate, and an outer wall on one side of the T-seat is bolted to an outer wall on one side of the protective shell.

[0006] Preferably, two connecting plates are fixed on an outer wall of one side of the bracket.

[0007] Preferably, the screw lifting structure includes a threaded shaft rotatably installed inside the shaft frame, and a nut sleeve installed at one end of the threaded shaft surface, a protective frame is fixed to the outer peripheral surface of the nut sleeve, the protective frame and the inner wall of the bracket are slidably connected, the top end of the threaded shaft is interconnected with the output end of a stepper motor, the right-angle plate is fixed on an outer wall of one side of the protective frame, and a bearing is installed at the bottom of the shaft frame.

[0008] Preferably, a guide rod is provided below the protective frame, a screw plug is installed on the top end of the guide rod, the screw plug and the protective frame are slidably matched, and a gasket is installed on the top wall of the screw plug.

[0009] Preferably, the elastic contact structure comprises a spline shaft installed at the second output end of the stepping motor, a contact unit is fixed to the bottom end of the spline shaft, and a limit spring is sleeved on the outer peripheral surface of the spline shaft.

[0010] Compared with the prior art, the beneficial effect of the utility model is that the stepper motor assembly mechanism dedicated to the speed regulator drives the protective frame, the right-angle plate and the workpiece upward by the screw lifting structure until the bolt contacts the elastic contact structure. After the bolt contacts the elastic contact structure completely, the stepper motor 2 actively drives the elastic contact structure to rotate, so that the elastic contact structure actively applies torque to the bolt, and the entire assembly process is more efficient. It does not require the staff to operate the electric screwdriver continuously for a long time, reduces the dependence on manpower, and reduces the labor intensity of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the top view of the support plate of the utility model;

[0013] Figure 3 The side view structure of the bracket of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 4 The side view structure of the bracket of the utility model is shown in FIG. Figure 2 ;

[0015] In the figure: 1, bracket; 101, connecting plate; 2, stepper motor one; 3, support plate; 4, T-seat; 5, protective shell; 6, cushion block; 7, stepper motor two; 8, shaft frame; 801, bearing; 9, threaded shaft; 10, nut sleeve; 11, protective frame; 12, screw plug; 1201, gasket; 13, guide rod; 14, right-angle plate; 15, spline shaft; 16, limit spring; 17, contact unit. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] See also Figure 1-4 , the utility model provides an embodiment: a stepper motor assembly mechanism dedicated to a speed regulator, comprising a bracket 1 and a support plate 3 fixed on the top of the bracket 1, and two connecting plates 101 are fixed on one side outer wall of the bracket 1;

[0018] A shaft frame 8 is installed inside the bracket 1 below the support plate 3, and a screw lifting structure is provided at the bottom end of the shaft frame 8, and a right-angle plate 14 for supporting the workpiece to be assembled with the speed regulator is installed at the movable end of the screw lifting structure. A stepper motor 2 for driving the screw lifting structure to work is installed at the center position of the top of the bracket 1, a cushion block 6 is fixed on the outer wall of one side of the shaft frame 8, and a protective shell 5 is installed on the outer wall of the cushion block 6 away from the shaft frame 8. The rotary power of the stepper motor 2 is transmitted to the screw lifting structure, and the screw lifting structure drives the protective frame 11 and the right-angle plate 14 and the workpiece to move upward;

[0019] A stepper motor 2 7 is installed on one side outer wall of the protective shell 5, and an elastic contact structure for applying a torsional force to the bolt is installed at the output end of the stepper motor 2 7, and the stepper motor 2 7 and the elastic contact structure can automatically tighten the bolt;

[0020] A T-shaped seat 4 is installed on one side of the top of the support plate 3, and an outer wall of one side of the T-shaped seat 4 is bolted to an outer wall of one side of the protective shell 5;

[0021] The screw lifting structure includes a threaded shaft 9 rotatably mounted inside the shaft frame 8, and a nut sleeve 10 mounted on one end of the surface of the threaded shaft 9, a protective frame 11 is fixed to the outer peripheral surface of the nut sleeve 10, the protective frame 11 and the inner wall of the bracket 1 are slidably connected, the top of the threaded shaft 9 is connected to the output end of the stepper motor 2, a right angle plate 14 is fixed to the outer wall of one side of the protective frame 11, and a bearing 801 is installed at the bottom of the shaft frame 8;

[0022] The stepper motor 2 drives the threaded shaft 9 to rotate, and the bearing 801 assists the threaded shaft 9 to rotate, and the threaded shaft 9 drives the nut sleeve 10, the protective frame 11, the right angle plate 14 and other components to rise and fall, thereby controlling the position of the right angle plate 14 and the workpiece to be assembled;

[0023] A guide rod 13 is provided below the protective frame 11, a screw plug 12 is installed on the top of the guide rod 13, the screw plug 12 and the protective frame 11 are slidably matched, a gasket 1201 is installed on the top wall of the screw plug 12, and the screw plug 12 and the guide rod 13 are used to support the protective frame 11 and the threaded shaft 9 to perform lifting and lowering actions;

[0024] The elastic contact structure includes a spline shaft 15 installed at the output end of the stepper motor 27, a contact unit 17 is fixed to the bottom end of the spline shaft 15, and a limit spring 16 is mounted on the outer peripheral surface of the spline shaft 15. When the bolt contacts the contact unit 17 and the bolt and the workpiece continue to move upward, the spline shaft 15 and the spline groove on the output shaft of the stepper motor 27 slide relative to each other. At this time, the limit spring 16 is in a compressed state, so that the output shaft of the stepper motor 27 drives the contact unit 17 to rotate through the spline shaft 15, thereby applying torque to the bolt.

[0025] When the embodiment of the present application is used, the staff first takes out the governor end cover and the shell component to be assembled, and makes the threaded holes of the governor end cover and the shell concentric, so that the two are preliminarily assembled together, and then places the assembled workpiece on the top of the right-angle plate 14, and then vertically places the bolts in the threaded holes of the end cover and the shell. At this time, the staff turns on the stepper motor 12 and the stepper motor 27 to work, and the rotary power of the stepper motor 12 is transmitted to the screw lifting structure, and the screw lifting structure drives the protective frame 11 and the right-angle plate 14 and the workpiece upward until the bolt contacts the elastic contact structure. When the bolt contacts the elastic contact structure, After completion, the stepper motor 2 7 actively drives the elastic contact structure to rotate, so that the elastic contact structure actively applies torque to the bolt until the bolt bolts the end cover and the shell together, thereby completing the bolting operation at this point, and then the staff bolts other points according to the same steps. During this process, the stepper motor 2 and the screw lifting structure can accurately control the position of the speed regulator end cover and the shell, and the stepper motor 2 7 and the elastic contact structure can automatically tighten the bolts, making the entire assembly process more efficient. It does not require the staff to operate the electric screwdriver continuously for a long time, reduces the dependence on manpower, can greatly reduce labor costs, and reduce the labor intensity of the staff.

Claims

1. The stepper motor assembly mechanism dedicated to the speed regulator is characterized by: The invention comprises a bracket (1) and a support plate (3) fixed on the top of the bracket (1); an axle frame (8) is installed inside the bracket (1) below the support plate (3); a screw lifting structure is arranged at the bottom end of the axle frame (8); a right-angle plate (14) for supporting a workpiece to be assembled with a speed regulator is installed at the movable end of the screw lifting structure; a stepper motor (2) for driving the screw lifting structure to work is installed at the center position of the top end of the bracket (1); a cushion block (6) is fixed on the outer wall of one side of the axle frame (8); a protective shell (5) is installed on the outer wall of the cushion block (6) away from the axle frame (8); a stepper motor (7) is installed on the outer wall of one side of the protective shell (5); and an elastic contact structure for applying a torsional force to a bolt is installed at the output end of the stepper motor (7).

2. The stepper motor assembly mechanism for a speed regulator according to claim 1, characterized in that: A T-shaped seat (4) is installed on one side of the top end of the support plate (3), and an outer wall on one side of the T-shaped seat (4) is bolted to an outer wall on one side of the protective shell (5).

3. The stepper motor assembly mechanism for a speed regulator according to claim 1, characterized in that: Two connecting plates (101) are fixed on one side outer wall of the bracket (1).

4. The stepper motor assembly mechanism for a speed regulator according to claim 1, characterized in that: The screw lifting structure comprises a threaded shaft (9) rotatably mounted inside a shaft frame (8), and a nut sleeve (10) mounted on one end of the surface of the threaded shaft (9); a protective frame (11) is fixed to the outer peripheral surface of the nut sleeve (10); the protective frame (11) and the inner wall of the bracket (1) are slidably connected; the top end of the threaded shaft (9) is interconnected with the output end of a stepper motor (2); the right-angle plate (14) is fixed on one side outer wall of the protective frame (11); and a bearing (801) is mounted on the bottom of the shaft frame (8).

5. The stepper motor assembly mechanism for a speed regulator according to claim 4 is characterized in that: A guide rod (13) is arranged below the protective frame (11), a screw plug (12) is installed on the top end of the guide rod (13), the screw plug (12) and the protective frame (11) are slidably matched, and a gasket (1201) is installed on the top wall of the screw plug (12).

6. The stepper motor assembly mechanism dedicated to the speed regulator according to claim 1, characterized in that: The elastic contact structure comprises a spline shaft (15) mounted on the output end of the second stepping motor (7), a contact unit (17) is fixed to the bottom end of the spline shaft (15), and a limit spring (16) is sleeved on the outer peripheral surface of the spline shaft (15).

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