CN-117190934-B - Equipment for online detecting basic size of rolling ball screw

CN117190934BCN 117190934 BCN117190934 BCN 117190934BCN-117190934-B

Abstract

The invention discloses equipment for detecting the basic size of a rolling ball screw on line. The detection module is divided into an upper module and a lower module which are driven by a linear module respectively to realize up-and-down movement. The detection module is internally provided with an angle sensor and a distance sensor to realize the detection of the parameters of the thread rolling bar. The upper and lower detection modules are provided with springs, so that the detection modules can be tightly attached in the lead screw roller path, and errors caused by vibration of the lead screw are reduced. Screw positioning mechanisms are arranged on two sides of the base, screws are further fixed, vibration of the screws is reduced, and detection accuracy is improved. When the screw rod is positioned in the screw rod positioning mechanism, the linear module drives the up-and-down detection module to move up and down, so that the detection module clings to the screw rod, and the measuring column in the detection module is automatically embedded into the roller path under the action of rotation of the screw rod roller path. The device has the characteristics of high precision, high automation, continuous measurement and the like, and is suitable for detecting the nominal diameter, the large diameter, the screw pitch and the helix angle of the screw rod.

Inventors

ZU LI
ZHANG MINHUA
LIU XINYU
XU HUACHENG
LUO HAO
GUO CHEN

Assignees

南京理工大学

Dates

Publication Date: 20260512
Application Date: 20220818

Claims (5)

1. The device for detecting the basic size of the rolling ball screw on line is characterized by comprising two linear die sets (1), an upper detection module (2), a pair of rolling ball screw positioning mechanisms (3), a lower detection module (4), two linear die set positioning mechanisms (5), a marble Dan Chuangshen (6), two servo motor systems (7), two motors and linear die set connecting blocks (8) and a detection die set positioning frame (9), wherein the linear die set positioning mechanisms (5), the detection die set positioning frame (9) and the linear die set positioning mechanisms (5) are sequentially arranged on the upper surface of the marble Dan Chuangshen (6) from left to right, the two linear die sets (1) are respectively arranged on the two linear die set positioning mechanisms (5), the two servo motor systems (7) are respectively connected with the linear die set positioning mechanisms (5) through a motor and the linear die set connecting blocks (8), the upper detection module (2) and the lower detection module (4) are used for detecting the basic size of the rolling ball screw on line, are respectively connected with the two linear die set positioning frames (9), and the two linear die set positioning mechanisms (1) are respectively arranged on the two sides of the marble positioning mechanisms (Dan Chuangshen) which are arranged on the front and the two sides of the rolling ball screw positioning mechanisms (3) are positioned in the rolling die set positioning mechanism positioning mode; When the rolling ball screw to be detected is positioned in a pair of rolling ball screw positioning mechanisms (3), two servo motor systems (7) respectively drive two linear modules (1) respectively drive an upper detection module (2) to linearly move downwards and a lower detection module (4) to linearly move upwards, and the upper detection module (2) and the lower detection module (4) are in contact with the rolling ball screw to be detected and measure the basic size of the rolling ball screw to be detected; The upper detection module (2) comprises an upper baffle (10), a first spring (11), an upper positioning block (12), a first limiting plate (13), an angle sensor (14), an end cover (15), an upper rotary table (16) and a first measuring column (17), and the lower detection module (4) comprises a lower rotary table (18), a lower positioning block (19), a lower baffle (20), a second spring, a second limiting plate, a second measuring column and a distance sensor (21); The rolling ball rolling device comprises an upper baffle (10) and an upper positioning block (12), wherein two ends of the upper baffle (10) and the upper positioning block are arranged in clamping grooves on a detection module positioning frame (9) and can move linearly along the vertical direction of the detection module positioning frame (9), the upper baffle (10) and the upper positioning block (12) are connected through a first spring (11), two ends of a first limiting plate (13) are respectively arranged on the upper baffle (10) and the upper positioning block (12) and used for limiting the longest distance between the upper baffle (10) and the upper positioning block (12), an upper turntable (16) is arranged on the upper positioning block (12) and rotatable, an angle sensor (14) is arranged on the upper turntable (16) and used for detecting the rotation angle of the upper turntable (16), an end cover (15) is arranged on the upper positioning block (12) and used for preventing the upper turntable (16) from moving up and down, a first measuring column (17) is positioned on the upper turntable (16), and when the detecting equipment works, the first measuring column (17) is positioned in a rolling ball rolling screw under the driving of a rolling ball to be detected. The two ends of the lower locating block (19) and the lower baffle (20) are arranged in clamping grooves on the detection module locating frame (9) and can move linearly along the vertical direction of the detection module locating frame (9), the lower locating block (19) and the lower baffle (20) are connected through a second spring, two ends of the second limiting plate are respectively arranged on the lower locating block (19) and the lower baffle (20) and used for limiting the longest distance between the lower locating block (19) and the lower baffle (20), the lower turntable (18) is arranged on the lower locating block (19) and can rotate, the distance sensor (21) is arranged on the side face of the lower turntable (18) and used for measuring the distance between the upper locating block (12) and the lower locating block (19), the second measuring column is positioned on the lower turntable (18), and when the detection device works, the second measuring column is positioned in a raceway under the driving of a rolling ball screw to be detected.
2. The apparatus for on-line detection of basic dimensions of rolled ball screw according to claim 1, wherein the upper surface of the marble Dan Chuangshen (6) is provided with a step, and two linear die set positioning mechanisms (5) are respectively arranged on the step and under the step.
3. The apparatus for on-line detection of the basic dimensions of a rolled ball screw according to claim 1, characterized in that the first measuring column (17) is positioned on the upper turntable (16) by means of a trapezoidal groove and the second measuring column is positioned on the lower turntable (18) by means of a trapezoidal groove.
4. The apparatus for on-line detection of the basic dimensions of a rolled ball screw according to claim 1, characterized in that the first limiting plate (13) and the second limiting plate are both fixed by means of a stop ring.
5. A detection method based on the device according to any one of claims 1 to 4, characterized in that it comprises the following steps: Step 1, when a rolling ball screw to be detected passes through a pair of rolling ball screw positioning mechanisms, a servo motor system drives a linear module to do linear motion, and drives an upper detection module to move downwards and a lower detection module to move upwards, so that a spring is deformed, and a measuring column is ensured to be clung to the rolling ball screw to be detected; Step 2, positioning the measuring column in the roller path under the drive of the rotation of the screw rod, detecting the nominal diameter and the large diameter of the rolling ball screw in real time by a distance sensor, measuring the helix angle of the rolling ball screw in real time by an angle sensor, and further measuring the screw pitch; And 3, when the rolling screw to be detected leaves a certain rolling ball screw positioning mechanism, the servo motor system drives the linear module to do linear motion, the upper detection module is driven to move upwards, and the lower detection module moves downwards, so that the detection module is separated from the rolling ball screw.

Description

Equipment for online detecting basic size of rolling ball screw Technical Field The invention belongs to the technical field of screw rod detection, and particularly relates to detection equipment for detecting the basic size of a rolling ball screw on line. Background The nominal diameter, major diameter, pitch and lead angle are important parameters of the ball screw, and detection of the rolling screw is necessary. At present, in the production of a rolling screw, equipment for detecting basic parameters of the screw on line is lacking, and the parameters of the rolling screw are very necessary to be monitored in real time. In the rolling production process, parameters of the screw rod can change due to abrasion of a roller, change of deflection angle and the like, and the parameter change caused by the factors is difficult to observe by naked eyes. At present, the device is basically static detection equipment, and few devices for detecting the rolling screw rod on line are provided. Disclosure of Invention The invention aims to provide detection equipment for detecting the basic size of a rolling ball screw on line, aiming at the problem that the rolling screw is difficult to detect on line. The technical scheme includes that the device for detecting the basic size of the rolling ball screw on line comprises two linear modules, an upper detection module, a pair of rolling ball screw positioning mechanisms, a lower detection module, two linear module positioning mechanisms, a marble lathe bed, two servo motor systems, two motors, a linear module connecting block and a detection module positioning frame, wherein the linear module positioning mechanisms, the detection module positioning frame and the linear module positioning mechanisms are sequentially arranged on the upper surface of the marble lathe bed from left to right; When the rolling ball screw to be detected leaves a rolling ball screw positioning mechanism, the two servo motor systems drive the two linear modules to drive the upper detection module to linearly move upwards and the lower detection module to linearly move downwards respectively, so that the detection module is separated from the rolling ball screw to be detected. The upper detection module comprises an upper baffle, a first spring, an upper positioning block, a first limiting plate, an angle sensor, an end cover, an upper rotary table and a first measuring column, wherein the lower detection module comprises a lower rotary table, a lower positioning block, a lower baffle, a second spring, a second limiting plate, a second measuring column and a distance sensor; The detection device comprises an upper baffle, an upper positioning block, an angle sensor, a first measuring column, a first spring, a second spring, a first limiting plate, a second limiting plate, an angle sensor, a first measuring column, a second measuring column, a first measuring column and a second measuring column, wherein the two ends of the upper baffle and the upper positioning block are arranged in clamping grooves on the detection module positioning frame and can move linearly along the vertical direction of the detection module positioning frame; The two ends of the lower positioning block and the lower baffle are arranged in clamping grooves on the positioning frame of the detection module and can move linearly along the vertical direction of the positioning frame of the detection module, the lower positioning block is connected with the lower baffle through a second spring, the two ends of the second limiting plate are respectively arranged on the lower positioning block and the lower baffle and are used for limiting the longest distance between the lower positioning block and the lower baffle, the lower turntable is arranged on the lower positioning block and can rotate, the distance sensor is arranged on the side surface of the lower turntable and is used for measuring the distance between the upper positioning block and the lower positioning block, the second measuring column is positioned on the lower turntable, and when the detection device works, the second measuring column is positioned in the raceway under the driving of the rotation of the rolling ball screw to be detected. The detection method based on the equipment comprises the following steps: Step 1, when a rolling ball screw to be detected passes through a pair of rolling ball screw positioning mechanisms, a servo motor system drives a linear module to do linear motion, and drives an upper detection module to move downwards and a lower detection module to move upwards, so that a spring is deformed, and a measuring column is ensured to be clung to the rolling ball screw to be detected; Step 2, positioning the measuring column in the roller path under the drive of the rotation of the screw rod, detecting the nominal diameter and the large diameter of the rolling ball screw in real time by a distance sensor, measuring the helix angle of the ro