CN213678542U - High precision motion stage with precise stroke - Google Patents

Abstract

The utility model discloses a high-precision moving platform with precise strokes, which comprises a base, a linear conveying component, a lifting module and a conveying platform. The linear conveying assembly includes: a motor, a lead screw connected to the motor, a sleeve sleeved on the lead screw, a fixed frame set on the side of the motor, and a cable displacement sensor set on the fixed frame, the cable displacement sensor and the motor controller connection. The utility model is provided with a pull-rope displacement sensor. When the motor drives the casing to move in a straight line, the pull-rope displacement sensor can monitor the displacement of the casing. Therefore, when the displacement of the casing reaches a specified value, the pull-rope displacement sensor can detect the displacement of the casing. It sends a signal to the motor controller, and the motor controller controls the motor to stop rotating. If the displacement exceeds the preset value, it controls the motor to reverse, thereby moving the casing to the specified position. The motion platform can achieve precise positioning, and combined with the lifting module of the motion platform, it can complete functions such as precise conveying of materials.

Description

High precision motion stage with precise stroke

technical field

The utility model relates to the field of mechanical motion platforms, in particular to a high-precision motion platform with precise strokes.

Background technique

With the rapid development of science and technology, more and more manufacturing enterprises use automated equipment for production. In various automation equipment, motion platforms are often applied to achieve various functions, such as linear motion platforms, which are driven by motors or cylinders to achieve linear motion. Linear motion. For example, in a laser cutting device and a laser marking device, the workpiece to be processed is transported to a predetermined position through a linear motion platform, and then the workpiece is processed. However, the traditional motion platform usually does not have a device for detecting and controlling its stroke, or usually adopts a relatively complex displacement control system, which is costly and inconvenient to use.

Therefore, the prior art has shortcomings and needs to be improved.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a high-precision motion platform with a precise stroke.

The technical scheme of the present utility model is as follows: a high-precision motion platform with precise stroke is provided, comprising: a base, a linear conveying assembly arranged on the base, a lifting module set on the linear conveying assembly, and a a conveying platform on the lifting module;

The linear conveying assembly includes: a motor arranged on the base, a screw rod connected to the motor, a sleeve sleeved on the screw rod, a fixing frame arranged on the side of the motor, and a screw rod. A pull-rope displacement sensor on the fixing frame; the sleeve is provided with an internal thread matching the screw rod, the motor drives the sleeve to perform linear motion on the screw rod, and the sleeve A bearing platform is arranged on the upper platform, the lifting module is arranged on the bearing platform, and a pulling rod is arranged on the bearing platform, and the pulling rod is connected with the pulling rope of the pulling rope displacement sensor, and the pulling rope displacement sensor is connected with The motor's controller connection.

Further, a gantry frame is also arranged on the base, a linear motor is arranged on the gantry frame, and a sliding plate is arranged on the linear motor.

Further, a plurality of linear guide rails are arranged on the base, the linear guide rails are located on the side of the screw rod and are parallel to the screw rod, a slider is arranged on the linear guide rail, and the sleeve is connected to the screw rod. Slider fixed connection.

Further, a displacement display is also provided on the fixing frame.

Further, a plurality of vacuum holes are provided on the conveying table, and the vacuum holes are connected with the vacuum generator.

By adopting the above scheme, the utility model is provided with a pull-rope displacement sensor. When the motor drives the sleeve to move linearly, the pull-rope displacement sensor can monitor the displacement of the sleeve. Therefore, when the displacement of the sleeve reaches a specified value, The rope displacement sensor sends a signal to the motor controller, and the motor controller controls the motor to stop rotating. If the displacement exceeds a predetermined value, the motor is controlled to reverse, thereby moving the casing to the specified position. The motion platform can achieve precise positioning, and combined with the lifting module of the motion platform, it can complete functions such as precise conveying of materials.

Description of drawings

Figure 1 is a side view of the utility model.

Figure 2 is a front view of the utility model.

Detailed ways

The present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

Please refer to FIG. 1 and FIG. 2 , the present invention provides a high-precision motion platform with precise stroke, comprising: a base 1 , a linear conveying assembly 2 arranged on the base 1 , and a linear conveying assembly 2 arranged on the base 1 . The lifting module 3 and the conveying table 4 arranged on the lifting module 3. The linear conveying assembly 2 drives the elevating module 3 to move back and forth, and the elevating module 3 drives the conveying table 4 to move up and down, so as to realize the front and rear up and down movement of the conveying table 4, and the conveying table 4 can load materials, so as to material is transported.

The linear conveying assembly 2 includes: a motor 21 arranged on the base 1 , a screw rod connected to the motor 21 , a sleeve 22 sleeved on the screw rod, and a side of the motor 21 . The fixing frame 24 and the cable displacement sensor 25 arranged on the fixing frame 24. The sleeve 22 is provided with an internal thread matching the screw rod, and the motor 21 drives the sleeve 22 to perform linear motion on the screw rod. A bearing platform 26 is arranged on the sleeve 22 , and the lifting module 3 is arranged on the bearing platform 26 . The bearing platform 26 is provided with a pull rod, and the pull rod is connected with the pull rope of the pull rope displacement sensor 25 . The motor 21 drives the lead screw to rotate, and drives the casing 22 to move on the lead screw. Since the pull rod is fixedly connected to the bearing platform 26 on the casing 22, the pull rod can move with the casing 22, thereby stretching or shrinking the displacement of the pull rope. The pull cord of the sensor 25 thus detects the displacement of the sleeve 22 . The rope displacement sensor 25 is connected to the controller of the motor 21, and a displacement amount is set for the casing 22 in advance. When the displacement of the casing 22 reaches a specified position, the rope displacement sensor 25 sends a signal to the motor controller. , the motor controller controls the motor 21 to stop, and if it is detected that the displacement of the sleeve 22 is too large, the motor controller controls the motor 21 to reverse, so that the sleeve 22 moves to an appropriate position.

The fixed frame 24 is also provided with a displacement display, which can display the displacement amount monitored by the pull-rope displacement sensor 25, so as to facilitate people to adjust the stroke.

The base 22 is also provided with a gantry frame 5, the gantry frame 5 is provided with a linear motor 6, the linear motor 6 is provided with a sliding plate 7, and the linear motor 6 drives the sliding plate 7 to move left and right. A mechanism such as clamping jaws can be installed on the sliding plate 7 to clamp the materials on the conveying table 4 and send them to other designated positions.

The base 1 is provided with a number of linear guide rails, the linear guide rails are located on the side of the screw rod and are parallel to the screw rod, the linear guide rail is provided with a slider, and the sleeve 22 is connected to the slider. The blocks are fixedly connected, and the bushing 22 can run more smoothly by setting the linear guide.

The conveying table 4 is provided with a number of vacuum holes, and the vacuum holes are connected with the vacuum generator, and the material is firmly adsorbed on the conveying table 4 by vacuum, so as to prevent the material from shifting during the transfer process.

To sum up, the utility model adds a rope displacement sensor. When the motor drives the casing to move linearly, the rope displacement sensor can monitor the displacement of the casing. Therefore, when the displacement of the casing reaches a specified value , the rope displacement sensor sends a signal to the motor controller, and the motor controller controls the motor to stop rotating. If the displacement exceeds the preset value, it controls the motor to reverse, thereby moving the casing to the specified position. The motion platform can achieve precise positioning, and combined with the lifting module of the motion platform, it can complete functions such as precise conveying of materials.

The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in the present utility model. within the scope of protection.

Claims (5)

1. A high precision motion platform with precise travel, comprising: the device comprises a base, a linear conveying assembly arranged on the base, a lifting module arranged on the linear conveying assembly, and a conveying table arranged on the lifting module;

the linear transport assembly includes: the device comprises a motor arranged on the base, a screw rod connected with the motor, a sleeve sleeved on the screw rod, a fixing frame arranged beside the motor and a pull rope displacement sensor arranged on the fixing frame; the lifting device comprises a screw rod, a sleeve, a lifting module, a pull rod, a pull rope displacement sensor and a motor, wherein an internal thread matched with the screw rod is arranged in the sleeve, the motor drives the sleeve to linearly move on the screw rod, the sleeve is provided with a bearing table, the lifting module is arranged on the bearing table, the bearing table is provided with the pull rod, the pull rod is connected with a pull rope of the pull rope displacement sensor, and the pull rope displacement sensor is connected with a controller of the motor.

2. The high-precision motion platform with the accurate stroke according to claim 1, wherein a portal frame is further arranged on the base, a linear motor is arranged on the portal frame, and a sliding plate is arranged on the linear motor.

3. The high-precision motion platform with the accurate stroke according to claim 2, wherein a plurality of linear guide rails are arranged on the base, the linear guide rails are arranged beside the screw rod and are parallel to the screw rod, a sliding block is arranged on the linear guide rails, and the sleeve is fixedly connected with the sliding block.

4. A precision motion platform with accurate stroke according to claim 2, wherein the fixed frame is further provided with a displacement display.

5. A precision motion platform with accurate stroke according to claim 2, wherein the conveying table is provided with a plurality of vacuum holes, and the vacuum holes are connected with a vacuum generator.

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