CN218330583U - Device for testing overall smoothness of ball screw - Google Patents

Abstract

The utility model relates to a ball screw test technical field especially relates to a device of the whole smooth and easy degree test of ball screw, and wherein ball screw testing arrangement includes: drive arrangement, rotating device, belt are drive mechanism and detection device with higher speed, install the drive arrangement who is used for driving belt with higher speed drive mechanism on the base, install the rotating device who is used for providing the detected object simultaneously and install the detection device who is used for receiving the detected object result, drive arrangement accelerates drive mechanism through the belt and is connected with rotating device, the drive arrangement upper end with the work piece contact that awaits measuring, the utility model discloses an increase ball testing arrangement, it is long when having overcome current test means, defect that inefficiency and intensity of labour are big, adopted the utility model discloses technical scheme back, when ball nut, lead screw completion assembly back, thereby can be quick, accurate test ball screw holistic smooth and easy degree improves assembly efficiency.

Description

Device for testing overall smoothness of ball screw

Technical Field

The utility model relates to a ball screw test technical field especially relates to a device of the whole smooth and easy degree test of ball screw.

Background

The ball screw is the transmission device which has the highest precision in the transmission machinery and is most commonly used. The main function of the device is to convert the rotary motion into linear motion or convert the torque into the repeated acting force of the shaft, and the device has the characteristics of high precision, reversibility and high efficiency and is widely applied to industrial equipment and precise instruments.

The existing test methods have two types: the first is to rotate the nut by hand to test the smoothness and prepressure of the ball screw; the second kind uses the steel ball to make the tool test, and ball screw puts immediately, and axle head centre bore and steel ball in close contact with rely on the manual work to exert external force and ball nut on, make ball screw rotate, ball nut landing thereupon, by the smooth and easy degree of experience judgement ball screw.

The problems existing in the prior art are as follows:

the first manual rotation ball nut moves from one end of the ball screw to the other end in a rotating manner, so that the time is long, the efficiency is low, and the labor intensity is high.

The second kind uses the smooth and easy degree that the steel ball tool can test ball screw fast, nevertheless hardly guarantees ball screw when ball screw, steel ball rotate and keeps upright state, and when ball screw axle head centre bore and steel ball contact surface were too big than the horizontal declination, ball screw can the landing very easily harm the axle head, and whether its smooth and easy degree is suitable depends on the feeling of personnel's experience completely and judges, appears the deviation condition and takes place occasionally.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art, the technical problem that above-mentioned traditional ball screw's test method exists, the test means is long consuming time, defect that inefficiency and intensity of labour are big adopts the utility model discloses technical scheme when ball nut, lead screw assembly back, can be fast, accurate test ball screw holistic smooth and easy degree to improve assembly efficiency.

In order to achieve the above object, the utility model discloses an increase ball testing arrangement, solve above technical problem, concrete technical scheme is as follows: the utility model provides a device of whole smooth and easy degree test of ball screw, includes: base ball testing arrangement, workpiece to be tested and workpiece support that awaits measuring, be equipped with ball testing arrangement on the base, workpiece support that awaits measuring is fixed with the workpiece to be tested that is used for detecting on the base through the fix with screw, workpiece support that awaits measuring is last, workpiece to be tested bottom and ball testing arrangement top contact, ball testing arrangement includes: the device comprises a driving device, a rotating device, a belt acceleration transmission mechanism and a detection device, wherein the driving device used for driving the belt acceleration transmission mechanism is installed on a base, the rotating device used for providing a detection target is installed on the base, the detection device used for receiving a detection target result is installed on the base, the driving device is connected with the rotating device through the belt acceleration transmission mechanism, and the upper end of the driving device is in contact with a workpiece to be detected.

Further, the driving device includes: the center of the lower end surface of the center shaft is provided with a steel ball, the ground center of the driving cavity is provided with a conical groove, the steel ball is positioned in the conical groove, and the center shaft is in transmission connection with a rotating device through a belt accelerating transmission mechanism.

Furthermore, the surface of the steel ball is provided with a threaded column, and the steel ball is arranged in a threaded hole arranged in the center of the lower end face of the tip shaft through the threaded column.

Still further, the rotating device includes: rotate optical axis, rolling bearing and discernment post, be equipped with in the base by rotating the cavity, rotate the optical axis and pass through rolling bearing coaxial arrangement in rotating the cavity, rotate the optical axis lateral wall and be provided with the discernment post, discernment post and detection device (24) cooperation carry out data acquisition, rotate the optical axis and pass through belt transmission mechanism with higher speed and be connected with the transmission of apical axis.

Furthermore, the device also comprises a cover plate, wherein the center of the cover plate is provided with a through hole for the center shaft or the rotating optical axis to pass through, and the cover plate is connected with the base through a screw.

Furthermore, the identification column is specifically a jackscrew, and the side wall of the rotating optical axis is provided with a threaded hole matched with the jackscrew.

Still further, the belt acceleration transmission mechanism includes: the device comprises a driving belt pulley, a rotating belt pulley and a toothed belt, wherein the driving belt pulley is coaxially sleeved on the outer side of the tip shaft, the rotating belt pulley is coaxially sleeved on the outer side of the rotating optical shaft, and the driving belt pulley is in transmission connection with the rotating belt pulley through the toothed belt.

Still further, the detection device includes: the detection support is connected with the base, the upper end of the detection support is connected with a receiving sensor used for detecting and identifying rotation of the jackscrew, the receiving sensor is electrically connected with the display screen, and the lower end of the display screen is connected with the base.

Further, the workpiece support to be tested includes: l shape support, support strengthening rib, fixed plate and thread tightening ware, L shape support horizontal segment passes through the screw and is connected with the base, is equipped with the support strengthening rib on the L shape support, and the fixed plate passes through the screw to be connected with the vertical section lateral wall of L shape support, offers on the fixed plate with thread tightening ware screw-thread fit's screw through-hole, the most advanced and workpiece contact that awaits measuring in thread tightening ware bottom.

Furthermore, the bottom of the base is provided with a damping supporting leg.

The utility model has the advantages that:

the utility model discloses an increase ball testing arrangement, overcome current test means length consuming time, defect that inefficiency and intensity of labour are big has adopted the utility model discloses technical scheme back, when ball nut, lead screw assembly back, thereby quick, accurate test ball screw holistic smooth and easy degree improves assembly efficiency.

Drawings

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A of FIG. 1;

FIG. 4 is an enlarged schematic view of FIG. 1 at B;

the notation in the figure is: 1. a base; 11. supporting legs; 2. a ball screw testing device; 21. a drive device; 211. a tip shaft; 212. a drive bearing; 213. steel balls; 214. a drive cavity; 215. a threaded post; 22. a rotating device; 221. rotating the optical axis; 222. rotating the bearing; 223. identifying the column; 224. rotating the cavity; 23. a belt acceleration transmission mechanism; 231. a drive pulley; 232. rotating the belt pulley; 233. a toothed belt; 24. a detection device; 241. detecting the bracket; 242. receiving a sensor; 243. a display screen; 3. a workpiece to be tested; 4. a workpiece support to be tested; 41. an L-shaped bracket; 42. a support reinforcing rib; 43. a fixing plate; 44. a threaded fastener; 5. and a cover plate.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of which are illustrated in the accompanying drawings, which serve to supplement the description of the text section of the description with figures, enabling one to visually and vividly understand each and every technical feature and the overall technical solution of the present invention, but which are not to be construed as limiting the scope of the invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of meanings are one or more, a plurality of meanings are two or more, and the terms greater than, smaller than, exceeding, etc. are understood as excluding the number, and the terms greater than, lower than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless explicitly defined otherwise, the terms of setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the terms in the present invention by combining the specific contents of the technical solutions.

The first embodiment is as follows: as shown in the attached figure 1 the utility model provides a device of whole smooth and easy degree test of ball screw includes: base 1, ball testing arrangement 2, workpiece 3 and the workpiece support 4 that awaits measuring of awaiting measuring, be equipped with ball testing arrangement 2 on the base 1, workpiece support 4 that awaits measuring is fixed with the workpiece 3 that awaits measuring that is used for detecting on the workpiece support 4 that awaits measuring through the fix with screw on base 1, and workpiece 3 bottoms and the contact of 2 tops of ball testing arrangement that await measuring, ball testing arrangement 2 includes: drive arrangement 21, rotating device 22, belt acceleration drive mechanism 23 and detection device 24, install the drive arrangement 21 that is used for driving belt acceleration drive mechanism 23 on the base 1, install the rotating device 22 that is used for providing the detection target on the base 1, install the detection device 24 that is used for receiving the detection target result on the base 1, drive arrangement 21 accelerates drive mechanism 23 through the belt and is connected with rotating device 22, drive arrangement 21 upper end and the contact of work piece 3 that awaits measuring, base 1 bottom is provided with shock attenuation supporting legs 11, still including apron 5, apron 5 center is opened has the through-hole that can supply center axle 211 or rotation optical axis 221 to pass through, and apron 5 passes through the screw and is connected with base 1, so sets up, can be after ball nut, lead screw assembly, test the holistic smooth and easy degree of ball screw fast, accurately through increasing ball screw testing arrangement 2, increases apron 5, can fix drive arrangement 21 on base 1, through installation supporting legs 11, can carry out the shock attenuation to the vibrations that the device that the whole smooth and easy degree of ball screw tested produced.

Example two: on the basis of the first embodiment, with reference to fig. 1 and fig. 3, the driving device 21 includes: the spindle comprises a tip shaft 211, a driving bearing 212 and steel balls 213, wherein a driving cavity 214 is arranged in the base 1, the tip shaft 211 is installed in the driving cavity 214 through the driving bearing 212, the steel balls 213 are arranged at the center of the lower end face of the tip shaft 211, a conical groove is formed in the center of the ground of the driving cavity 214, the steel balls 213 are located in the conical groove, the tip shaft 211 is in transmission connection with a rotating device 22 through a belt acceleration transmission mechanism 23, a threaded column 215 is arranged on the surface of the steel balls 213, the steel balls 213 are installed in a threaded hole formed in the center of the lower end face of the tip shaft 211 through the threaded column 215, and by the arrangement, the rotation of a screw rod driven by a ball nut of a workpiece to be detected can be converted into the rotation of the tip shaft 211 through the addition of the driving device 21, and the connection of the tip shaft 211 and the belt acceleration transmission mechanism 23 is utilized to drive the rotation of the rotating device 22.

Example three: on the basis of the second embodiment, referring to fig. 1 and fig. 4, the rotating device 22 includes: rotate optical axis 221, rolling bearing 222 and discernment post 223, be equipped with in the base 1 by rotating cavity 224, rotate optical axis 221 and pass through rolling bearing 222 coaxial arrangement in rotating cavity 224, rotate the optical axis 221 lateral wall and be provided with discernment post 223, discernment post 223 carries out data acquisition with detection device 24 cooperation, rotate optical axis 221 and pass through belt acceleration drive mechanism 23 and the transmission of apex axle 211 and be connected, discernment post 223 specifically is the jackscrew, rotate optical axis 221 lateral wall and open and be used for with jackscrew complex screw hole, so set up, through increasing rotating device 22, with apex axle 211 and belt acceleration drive mechanism 23 drive rotate transmit to optical axis 221 on, thereby the discernment post 223 of setting on optical axis 221 carries out the transmission and produces identification signal.

Example four: on the basis of the third embodiment, with reference to fig. 1 and fig. 2, the belt acceleration transmission mechanism 23 includes: drive pulley 231, rotate belt pulley 232 and toothed belt 233, drive pulley 231 coaxial cover establish with the apical axis 211 outside, rotate the coaxial cover of belt pulley 232 and establish in the rotation optical axis 221 outside, drive pulley 231 passes through toothed belt 233 transmission with rotating belt pulley 232 and is connected, so sets up, accelerates drive mechanism 23 through increasing the belt, transmits drive arrangement 21's rotation to rotating device 22.

Example five: on the basis of the third embodiment, with reference to fig. 1, the detecting device 24 includes: the detection support 241, the receiving sensor 242 and the display screen 243, the detection support 241 lower extreme is connected with the base 1, the upper end is connected with the receiving sensor 242 that is used for detecting the rotation of discerning jackscrew 224, the receiving sensor 242 can adopt industry sensing counter, the receiving sensor 242 is connected with the display screen 243 electricity, the display screen 243 lower extreme is connected with the base 1, so set up, through increasing detection device 24, read discernment post 223 and carry out the transmission and produce rotatory identification signal to carry out the analysis to identification signal, form the data that let the operator read at last.

Example six: on the basis of the third embodiment, with reference to fig. 1, the workpiece support 4 to be tested includes: l shape support 41, support strengthening rib 42, fixed plate 43 and thread tightening ware 44, L shape support 41 horizontal segment passes through the screw and is connected with base 1, be equipped with support strengthening rib 42 on the L shape support 41, fixed plate 43 passes through the screw and is connected with the vertical section lateral wall of L shape support 41, set up the screw through-hole with thread tightening ware 44 screw-thread fit on the fixed plate 43, thread tightening ware 44 bottom is most advanced to be contacted with workpiece 3 that awaits measuring, so set up, through increasing workpiece tightening ware 4 that awaits measuring, the central line when making the instrument ball screw that awaits measuring rotatory keeps on same straight line with the apex axle 211 central line on the drive arrangement 21, and perpendicular and base 1, make the testing result more accurate.

The working principle and the flow are as follows: the driving device 21 and the rotating device 22 are two core parts, a shaft end center hole of the ball screw abuts against the center shaft 211 to be kept vertical and the ball screw is rotated by a vertical external force applied to the ball nut, so that the ball nut linearly moves downwards to drive the ball screw of the workpiece 4 to be detected to rotate, the workpiece 4 to be detected is in contact with the center shaft 211, the center shaft 211 drives the driving belt pulley 231 and the driving belt pulley 231 to accelerate the rotation through the toothed belt 233 and transmit the rotation to the rotating belt pulley 232, the rotating belt pulley 232 drives the rotating optical shaft 211 to rotate, the identification column 223 on the rotating optical shaft 211 rotates to provide a signal source for the detecting device, the detecting device 24 detects the rotation of the identification column 223 through the receiving sensor 242, the higher the rotation of the identification column 223 is, the precision of the workpiece to be detected feeds back corresponding data in real time, the whole smoothness of the ball screw can be quickly and accurately tested, a pre-pressure and degree data curve are converted through calculation, the smoothness curve is displayed in a human-machine interface and compared with a standard, and whether the workpiece is qualified or not is marked.

Firstly, a workpiece 3 to be measured is placed on the center shaft 211, then the thread fixer 44 is installed on the side wall of the L-shaped bracket through the fixing plate 43, and the thread fixer 44 is matched with a threaded hole in the fixing plate 43, so that the top end of the bottom of the thread fixer 44 is contacted with the top of the workpiece 3 to be measured, the workpiece 3 to be measured is fixed, and the purpose is to ensure that the axle center of the thread fixer 44, the axle center of the workpiece 3 to be measured and the axle center of the center shaft 211 are kept on the same straight line and are kept vertical to the base 1; at the moment, a ball nut of the workpiece 3 to be measured moves downwards along the ball screw linearly to drive the ball screw to rotate, the linear motion is converted into rotary motion, a shaft end center hole of the ball screw is in contact with the center shaft 211, the center shaft 211 rotates under the driving of the ball screw, a driving belt pulley 231 is coaxially sleeved on the upper portion of the center shaft 211 and is in transmission connection with the rotating belt pulley 232 through a toothed belt 233, the rotation is transmitted to the rotating belt pulley 232, a rotating optical axis 221 is coaxially sleeved in the rotating belt pulley 232, the identification column 223 periodically rotates along with the rotating optical axis 221, and a driving bearing is sleeved at the bottoms of the center shaft 211 and the rotating optical axis 221, so that the friction force of the automatic transmission of the center shaft 211 and the rotating optical axis 221 is negligible, and the result cannot be influenced; the workpiece 3 to be detected is limited in length, the rotating speed and the number of rotating circles are low, the diameter of the driving belt pulley 231 is set to be larger than that of the rotating belt pulley 232, the workpiece 3 to be detected can be brought to the rotating of the center shaft 211, the belt acceleration transmission mechanism 23 is used for endowing the rotating optical axis 221 with a faster rotating speed, and the rotating speed of the rotating optical axis 221 is larger than that of the center shaft 211, so that the rotating speed is the rotating speed of the ball screw in the workpiece 3 to be detected and is transmitted to the belt acceleration transmission mechanism 23 through the driving device 21, and therefore the identification column 223 rotates periodically and is a target data source needing to be collected and analyzed; the rotation data of the recognition column 223 is collected by the receiving sensor 242, the analysis result is displayed through the display screen 243, the rotation curve of the recognition column 223 can be more accurately calculated through the rotation speed of the recognition column 223 and converted into the pre-pressure and smoothness data curve of the workpiece 3 to be detected, through the pre-pressure of the workpiece 3 to be detected, the smoothness data curve is compared with the standard data, the lower the pre-pressure is, the more regular the smoothness data curve is, the higher the precision of the workpiece 3 to be detected is, meanwhile, the comparison with the standard data is carried out, whether the workpiece 3 to be detected meets the standard or not is judged, and the result is output to the interface of the display screen 243.

Claims (10)

1. The utility model provides a device of whole smooth and easy degree test of ball screw, includes: base (1), ball testing arrangement (2), workpiece to be tested (3) and workpiece support (4) that await measuring, be equipped with ball testing arrangement (2) on base (1), workpiece support (4) that await measuring are fixed in base (1) through the fix with screw on, are fixed with workpiece to be tested (3) that are used for the detection on workpiece support (4) that awaits measuring, workpiece to be tested (3) bottom and ball testing arrangement (2) top contact, its characterized in that, ball testing arrangement (2) include: drive arrangement (21), rotating device (22), belt acceleration drive mechanism (23) and detection device (24), install drive arrangement (21) that are used for driving belt acceleration drive mechanism (23) on base (1), install rotating device (22) that are used for providing the detection target on base (1), install detection device (24) that are used for receiving the detection target result on base (1), drive arrangement (21) are connected with rotating device (22) through belt acceleration drive mechanism (23), drive arrangement (21) upper end and workpiece to be measured (3) contact.

2. The apparatus for testing the overall smoothness of a ball screw according to claim 1, wherein said driving means (21) comprises: the center of the bottom surface of the top shaft (211) is provided with a steel ball (213), the center of the bottom surface of the driving cavity (214) is provided with a conical groove, the steel ball (213) is located in the conical groove, and the top shaft (211) is in transmission connection with a rotating device (22) through a belt acceleration transmission mechanism (23).

3. The device for testing the integral smoothness of the ball screw according to claim 2, wherein the surface of the steel ball (213) is provided with a threaded column (215), and the steel ball (213) is installed in a threaded hole arranged at the center position of the lower end surface of the tip shaft (211) through the threaded column (215).

4. The apparatus for testing the overall smoothness of a ball screw according to claim 2, wherein said rotating means (22) comprises: rotate optical axis (221), rolling bearing (222) and discernment post (223), be equipped with in base (1) by rotating cavity (224), rotate optical axis (221) and pass through rolling bearing (222) coaxial arrangement in rotating cavity (224), rotate optical axis (221) lateral wall and be provided with discernment post (223), discernment post (223) and detection device (24) cooperation carry out data acquisition, rotate optical axis (221) and accelerate drive mechanism (23) through the belt and be connected with apex axle (211) transmission.

5. The device for testing the integral smoothness of the ball screw according to claim 4, further comprising a cover plate (5), wherein a through hole for the center of the cover plate (5) to pass through is formed in the center of the center shaft (211) or the center shaft (221), and the cover plate (5) is connected with the base (1) through a screw.

6. The device for testing the overall smoothness of the ball screw according to claim 4, wherein the recognition column (223) is a jackscrew, and a threaded hole for matching with the jackscrew is formed in the side wall of the rotating optical axis (221).

7. The apparatus for testing the overall smoothness of a ball screw according to claim 4, wherein said belt acceleration transmission mechanism (23) comprises: drive belt pulley (231), rotation belt pulley (232) and toothed belt (233), drive belt pulley (231) coaxial sleeve establish with apical axis (211) outside, rotate belt pulley (232) coaxial sleeve and establish and rotate optical axis (221) outside, drive belt pulley (231) with rotate belt pulley (232) through toothed belt (233) transmission connection.

8. The apparatus for testing the overall smoothness of a ball screw according to claim 7, wherein said detecting means (24) comprises: the device comprises a detection support (241), a receiving sensor (242) and a display screen (243), wherein the lower end of the detection support (241) is connected with a base (1), the upper end of the detection support is connected with the receiving sensor (242) used for detecting rotation of an identification column (223), the receiving sensor (242) is electrically connected with the display screen (243), and the lower end of the display screen (243) is connected with the base (1).

9. The apparatus for testing the overall smoothness of the ball screw according to claim 8, wherein the workpiece holder (4) to be tested comprises: l shape support (41), support strengthening rib (42), fixed plate (43) and thread tightening ware (44), L shape support (41) horizontal segment passes through the screw and is connected with base (1), is equipped with support strengthening rib (42) on L shape support (41), and fixed plate (43) pass through the screw to be connected with the vertical section lateral wall of L shape support (41), set up on fixed plate (43) with thread tightening ware (44) screw-thread fit's screw through-hole, thread tightening ware (44) bottom most advanced with the work piece (3) contact that awaits measuring.

10. The device for testing the integral smoothness of the ball screw is characterized in that a damping supporting leg (11) is arranged at the bottom of the base (1).

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