CN111366363A - System and method for synchronously measuring preload and pre-tightening dragging force of rolling linear guide rail pair - Google Patents
System and method for synchronously measuring preload and pre-tightening dragging force of rolling linear guide rail pair Download PDFInfo
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- CN111366363A CN111366363A CN202010022138.7A CN202010022138A CN111366363A CN 111366363 A CN111366363 A CN 111366363A CN 202010022138 A CN202010022138 A CN 202010022138A CN 111366363 A CN111366363 A CN 111366363A
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- guide rail
- preload
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/025—Test-benches with rotational drive means and loading means; Load or drive simulation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
Abstract
The invention discloses a system and a method for synchronously measuring preload and pre-tightening dragging force of a rolling linear guide rail pair, wherein the system comprises a lathe bed component, a driving component, a main workbench and a pre-tightening load adjustable mechanism which are coaxially arranged; the lathe bed component comprises a lathe bed and is used for supporting the measuring system and the rolling linear guide rail pair to be measured; the rolling linear guide rail pair to be tested comprises a guide rail to be tested; the driving part is used for driving the main workbench to drive the guide rail to be tested to move along the length direction of the lathe bed; the main workbench is used for measuring the pre-tightening dragging force of the guide rail to be measured in the moving process; and the preload adjustable mechanism is used for extruding the guide rail to be measured and measuring the preload of the guide rail to be measured. The method realizes the synchronous measurement of the preload and the pre-tightening dragging force based on the system. The device can realize the synchronous on-line measurement of the preload and the pre-tightening dragging force of the linear guide rail pair under different preload levels after one-time installation, has high measurement efficiency and real and reliable measurement data.
Description
Technical Field
The invention belongs to the field of performance testing of a rolling linear guide rail pair, and particularly relates to a system and a method for synchronously measuring a preload and a pre-tightening dragging force of the rolling linear guide rail pair.
Background
The rolling linear guide rail pair is used as a core basic functional component of a high-grade numerical control machine tool, and the precision and the reliability of the rolling linear guide rail pair directly influence the processing precision of a host machine. The excessive preload can increase the pre-tightening dragging force of the guide rail pair, so that the abrasion is intensified; the excessively small preload can obviously reduce the rigidity of the guide rail pair and increase the vibration, so that the motion precision, the rigidity, the bearing capacity and other properties of the guide rail pair are influenced, and therefore the preload of the linear guide rail pair must be accurately controlled. Therefore, the pre-loading value is accurately obtained, the service life of the rolling linear guide rail pair is prolonged, the reliability is improved, and the machining precision of the main machine is guaranteed.
According to the related data, the preload grades (light, medium and heavy) of the rolling linear guide rail pair can be only roughly judged according to the diameters of the rolling bodies at present, the preload value cannot be accurately given, the corresponding preload value cannot be measured according to the value of each preload drag force, and therefore synchronous online measurement of the preload drag force and the preload of the linear guide rail pair cannot be achieved.
Disclosure of Invention
The invention aims to provide a system and a method capable of synchronously measuring the preload and the pre-tightening dragging force of a rolling linear guide rail pair.
The technical solution for realizing the purpose of the invention is as follows: a synchronous measuring system for preload and pre-tightening dragging force of a rolling linear guide rail pair comprises a lathe bed component, a driving component, a main workbench and a pre-loading adjustable mechanism which are coaxially arranged;
the lathe bed component comprises a lathe bed body and is used for supporting the whole measuring system and the rolling linear guide rail pair to be measured; the rolling linear guide rail pair to be tested comprises a guide rail to be tested;
the driving part is used for driving the main workbench to drive the guide rail to be tested to move along the length direction of the lathe body;
the main workbench is used for measuring the pre-tightening dragging force of the guide rail to be measured in the movement process;
and the preload adjustable mechanism is used for extruding the guide rail to be measured and measuring the preload of the guide rail to be measured.
Furthermore, the lathe bed part also comprises a pair of parallel main guide rail pairs arranged along the length direction of the lathe bed body, and a main workbench is arranged on a sliding block of the main guide rail pairs.
Further, the driving part comprises a servo motor, a lead screw and a lead screw nut; the servo motor is arranged on a motor clamping seat which is fixed on the lathe bed body and positioned between the pair of parallel main guide rail pairs, and the lead screw nut is arranged on a nut clamping seat fixed on the main workbench; the servo motor drives the screw rod to rotate, and drives the screw rod nut to move so as to drive the main workbench to axially move along the guide rail of the main guide rail pair; two ends of the lead screw respectively penetrate through the first supporting unit and the second supporting unit which are arranged on the lathe bed body.
Furthermore, the main workbench comprises a first base, a tension-compression type force sensor, a measuring platform and a measuring tool block; the first base is fixed on the sliding block of the main guide rail pair, and the upper surface of the first base is parallel to the upper surface of the main guide rail pair; the first base is provided with a nut clamping seat and a measuring platform, one end of a guide rail to be measured is naturally placed on the upper surface of the measuring platform, and a measuring tool block is fixedly installed on the guide rail to be measured; and two ends of the tension-compression type force sensor are respectively connected with the measuring platform and the measuring tool block.
Furthermore, the other end of the guide rail to be measured is naturally placed on a height-adjustable tailstock arranged at the tail part of the lathe body.
Further, the main workbench further comprises a dragging tool for dragging the main workbench to slide along the guide rail of the main guide rail pair.
Furthermore, the main workbench further comprises a linear needle roller plate arranged in a groove in the upper surface of the measuring platform, and one end of the guide rail to be measured is naturally placed on the linear needle roller plate.
Furthermore, the preload adjustable mechanism comprises a second base, a flat tongs, a first extrusion tooling block, a second extrusion tooling block, a cylindrical pressure sensor, a cylindrical stress block and a separate sliding block matched with the guide rail to be detected; the second base is fixed on the lathe body and positioned between the pair of parallel main guide rail pairs, the upper surface of the second base is provided with a flat-nose pliers, the jaw direction of the flat-nose pliers is consistent with the axial direction of the main guide rail pairs, the inner surfaces of the two sides of the jaw are respectively provided with a first extrusion tool block and a second extrusion tool block in a contact manner, one side, close to the second extrusion tool block, of the first extrusion tool block is provided with a U-shaped groove, and a cylindrical pressure sensor is arranged in the groove; the separating type sliding block is arranged on the opposite inner sides of the first extrusion tool block and the second extrusion tool block in an inverted mode, V-shaped grooves are formed in the separating type sliding block and are close to the two sides of the first extrusion tool block and the second extrusion tool block respectively and are marked as a first V-shaped groove and a second V-shaped groove respectively, meanwhile, a V-shaped groove is also formed in one side, opposite to the separating type sliding block, of the second extrusion tool block and is marked as a third V-shaped groove, the heights of the V-shaped grooves and the cylindrical pressure sensor are the same, cylindrical stress blocks are arranged in the first V-shaped groove and the third V-shaped groove and are marked as a first cylindrical stress block and a second cylindrical stress block respectively, and the first cylindrical stress block is in contact with the cylindrical pressure sensor; when the system is used for measurement, the movable side of the movable flat tongs extrudes the second extrusion tool block to move towards the first extrusion tool block, so that the second cylindrical stress block is in contact with the second V-shaped groove.
Further, still be equipped with the recess that is parallel to mutually with main guide rail vice on the lathe bed body, set up the tow chain in the recess for various cables of system are placed.
The measuring method based on the rolling linear guide rail pair preload and pretension dragging force synchronous measuring system comprises the following steps:
And 3, driving a screw rod to rotate by a servo motor, driving a main workbench by a screw rod nut to further drive the guide rail to be tested to move at a constant speed along the axial direction of the main guide rail pair at the movement speed in the step 1, recording the numerical values of a plurality of groups of tension-compression type force sensors, and calculating the average value of all the numerical values, and recording the average value as f1；
and 5, repeating the steps 2 to 4 to obtain the pre-tightening dragging force corresponding to different pre-loading values of the guide rail to be tested.
Compared with the prior art, the invention has the following remarkable advantages: 1) the measuring system can directly read the accurate value of the preload, can realize the measurement of the pre-tightening dragging force and has higher measuring efficiency; 2) through the online test of the tension-compression type force sensor and the cylindrical pressure sensor, the performance change of the rolling linear guide rail pair in the synchronous test process of preload and pretension dragging force can be reflected in real time, and the test data is continuous and reliable; 3) the system is convenient to adjust, after the system is installed once, the pre-tightening dragging force of the linear guide rail pair under different pre-loading levels can be measured for multiple times, and the cost is saved.
The present invention is described in further detail below with reference to the attached drawing figures.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a system for synchronously measuring the preload and the pretension towing force of a rolling linear guide rail pair in one embodiment.
FIG. 2 is a schematic diagram of the overall structure of a system for synchronously measuring the preload and the pretension towing force of the rolling linear guide rail pair in one embodiment.
FIG. 3 is a side view structural diagram of a system for synchronously measuring the preload and the pretension dragging force of the rolling linear guide rail pair on line in one embodiment.
Fig. 4 is a schematic view of bed components in one embodiment.
FIG. 5 is a schematic diagram of an embodiment of a preload adjustment mechanism.
FIG. 6 is a cross-sectional view of a preload adjustment mechanism in one embodiment.
FIG. 7 is a schematic view of a primary table in one embodiment.
Detailed Description
With reference to fig. 1 to 3, the invention provides a system for synchronously measuring preload and preload drag force of a rolling linear guide rail pair, which comprises a machine body component I, a driving component II, a main workbench III and a preload adjustable mechanism IV, wherein the driving component II, the main workbench III and the preload adjustable mechanism IV are coaxially arranged;
the lathe bed component I comprises a lathe bed body 1 and is used for supporting the whole measuring system and the rolling linear guide rail pair to be measured; the rolling linear guide rail pair to be tested comprises a guide rail 4 to be tested;
the driving part II is used for driving the main workbench III to drive the guide rail to be tested 4 to move along the length direction of the lathe body 1;
the main workbench III is used for measuring the pre-tightening dragging force of the guide rail 4 to be measured in the moving process;
and the preload adjustable mechanism IV is used for extruding the guide rail 4 to be measured and measuring the preload of the guide rail.
Further, in one embodiment, with reference to fig. 4, the bed component I further includes a pair of parallel main guide rail pairs 2 disposed along the length direction of the bed body 1, and a main worktable III is disposed on a sliding block of the main guide rail pairs 2.
As a specific example, each primary guide pair 2 comprises two sliders.
Further, in one of the embodiments, the driving part II includes the servo motor 7, the lead screw 12 and the lead screw nut 13; the servo motor 7 is arranged on a motor clamping seat 9 which is fixed on the lathe bed body 1 and is positioned between the pair of parallel main guide rail pairs 2, and the lead screw nut 13 is arranged on a nut clamping seat 10 which is fixed on the main worktable III; the servo motor 7 drives the screw rod 12 to rotate, and drives the screw rod nut 13 to move so as to drive the main workbench III to axially move along the guide rail of the main guide rail pair 2; two ends of the screw 12 respectively penetrate through the first supporting unit 8 and the second supporting unit 24 which are arranged on the lathe body 1.
Further, in one embodiment, with reference to fig. 7, the main workbench III includes a first base 25, a tension-compression type force sensor 6, a measurement platform 11, and a measurement tool block 22; the first base 25 is fixed on the slide block of the main guide rail pair 2, and the upper surface of the first base is parallel to the upper surface of the main guide rail pair 2; the first base 25 is provided with a nut clamping seat 10 and a measuring platform 11, one end of the guide rail 4 to be measured is naturally placed on the upper surface of the measuring platform 11, and a measuring tool block 22 is fixedly installed on the guide rail 4 to be measured; two ends of the tension-compression type force sensor 6 are respectively connected with the measuring platform 11 and the measuring tool block 22.
As a specific example, it is preferable that the pull-press type force sensor 6 specifically adopts an S-shaped pull-press type force sensor 6.
As a specific example, the nut holder 10 is preferably of a U-shaped structure to facilitate assembly of the screw nut.
As a specific example, preferably, both ends of the tension-compression type force sensor 6 are respectively connected with the measuring platform 11 and the measuring tool block 22 through studs.
Further, in one embodiment, the measuring platform 11 is an inverted U-shaped structure, and the screw 12 penetrates through the U-shaped opening.
By adopting the scheme of the embodiment, three functions of spanning the screw rod, supporting the guide rail to be tested and measuring the pre-tightening dragging force can be realized through one component of the measuring platform, and the complexity of the whole device is reduced.
Further, in one of the embodiments, the other end of the guide rail 4 to be measured is naturally placed on the height-adjustable tailstock 23 installed at the rear of the bed body 1.
By adopting the scheme of the embodiment, the influence on the measurement result caused by dead weight inclination, gravity center offset and the like of the guide rail to be measured can be prevented while the guide rail to be measured can be supported.
Further, in one embodiment, referring to fig. 7, the main workbench III further includes a dragging tool 20 for dragging the main workbench III to slide along the guide rail of the main guide rail pair 2.
Further, in one embodiment, referring to fig. 7, the main worktable III further includes a linear roller plate 21 disposed in a groove on the upper surface of the measuring platform 11, and one end of the guide rail 4 to be measured is naturally placed on the linear roller plate 21.
By adopting the scheme of the embodiment, the friction force between the guide rail 4 to be measured and the contact surface can be reduced.
Further, in one embodiment, with reference to fig. 5 and 6, the preload adjusting mechanism IV includes a second base 5, a flat-nose pliers 14, a first extrusion tooling block 15, a second extrusion tooling block 16, a cylindrical pressure sensor 17, a cylindrical force receiving block 18, and a separate slider 19 engaged with the guide rail 4 to be measured; the second base 5 is fixed on the lathe bed body 1 and is positioned between the pair of parallel main guide rail pairs 2, the upper surface of the second base is provided with a flat-nose pliers 14, the jaw direction of the flat-nose pliers 14 is consistent with the axial direction of the main guide rail pairs 2, the inner surfaces of the two sides of the jaw are respectively provided with a first extrusion tool block 15 and a second extrusion tool block 16 in a contact manner, one side of the first extrusion tool block 15, which is close to the second extrusion tool block 16, is provided with a U-shaped groove, and a cylindrical pressure sensor 17 is arranged in the groove; the separated slide block 19 is arranged on the opposite inner sides of the first extrusion tool block 15 and the second extrusion tool block 16 in an inverted mode, V-shaped grooves are formed in the two sides, close to the first extrusion tool block 15 and the second extrusion tool block 16, of the separated slide block 19 respectively and are marked as a first V-shaped groove and a second V-shaped groove respectively, meanwhile, a V-shaped groove is also formed in one side, opposite to the separated slide block 19, of the second extrusion tool block 16 and is marked as a third V-shaped groove, the height of the V-shaped groove is the same as that of the cylindrical pressure sensor 17, cylindrical stress blocks 18 are arranged in the first V-shaped groove and the third V-shaped groove respectively and are marked as a first cylindrical stress block and a second cylindrical stress block respectively, and the first cylindrical stress block is in contact with the cylindrical pressure sensor 17; when the system is used for measurement, the movable side of the movable flat tongs 14 extrudes the second extrusion tool block 16 to move towards the first extrusion tool block 15, so that the second cylindrical stress block is in contact with the second V-shaped groove.
Further, in one embodiment, a groove parallel to the main guide rail pair 2 is further formed in the bed body 1, and a drag chain 3 is arranged in the groove and used for placing various cables of the system.
The measuring method based on the rolling linear guide rail pair preload and pretension dragging force synchronous measuring system comprises the following steps:
And 3, driving a screw rod to rotate by a servo motor, driving a main workbench by a screw rod nut to further drive the guide rail to be tested to move at a constant speed along the axial direction of the main guide rail pair at the movement speed in the step 1, recording the numerical values of a plurality of groups of tension-compression type force sensors, and calculating the average value of all the numerical values, and recording the average value as f1；
and 5, repeating the steps 2 to 4 to obtain the pre-tightening dragging force corresponding to different pre-loading values of the guide rail to be tested.
In conclusion, the device can realize synchronous online measurement of the preload and the pre-tightening dragging force of the tested linear guide rail pair under different preload levels after one-time installation, and has high measurement efficiency and real and reliable measurement data.
Claims (10)
1. A synchronous measuring system for preload and pre-tightening dragging force of a rolling linear guide rail pair is characterized by comprising a machine body component (I), a driving component (II), a main workbench (III) and a pre-tightening load adjusting mechanism (IV), wherein the driving component (II), the main workbench (III) and the pre-tightening load adjusting mechanism are coaxially arranged;
the lathe bed component (I) comprises a lathe bed body (1) and is used for supporting the whole measuring system and the rolling linear guide rail pair to be measured; the rolling linear guide rail pair to be tested comprises a guide rail (4) to be tested;
the driving part (II) is used for driving the main workbench (III) to drive the guide rail (4) to be tested to move along the length direction of the lathe bed body (1);
the main workbench (III) is used for measuring the pre-tightening dragging force of the guide rail (4) to be measured in the moving process;
the preload adjusting mechanism (IV) is used for extruding the guide rail (4) to be measured and measuring the preload of the guide rail to be measured.
2. The system for synchronously measuring the preload and the pre-tightening dragging force of the rolling linear guide rail pair as claimed in claim 1, wherein the lathe bed component (I) further comprises a pair of parallel main guide rail pairs (2) arranged along the length direction of the lathe bed body (1), and a main worktable (III) is arranged on a sliding block of the main guide rail pairs (2).
3. The system for synchronously measuring the preload and the pretension drag force of a rolling linear guide pair according to claim 2, wherein the driving part (II) comprises a servo motor (7), a lead screw (12) and a lead screw nut (13); the servo motor (7) is arranged on a motor clamping seat (9) which is fixed on the lathe bed body (1) and is positioned between the pair of parallel main guide rail pairs (2), and the lead screw nut (13) is arranged on a nut clamping seat (10) fixed on the main workbench (III); the servo motor (7) drives the screw rod (12) to rotate, and drives the screw rod nut (13) to move so as to drive the main workbench (III) to axially move along the guide rail of the main guide rail pair (2); two ends of the lead screw (12) penetrate through a first supporting unit (8) and a second supporting unit (24) which are arranged on the lathe bed body (1) respectively.
4. The system for synchronously measuring the preload and the pretension towing force of the rolling linear guide pair according to claim 3, wherein the main worktable (III) comprises a first base (25), a tension-compression type force sensor (6), a measuring platform (11) and a measuring tool block (22); the first base (25) is fixed on the sliding block of the main guide rail pair (2), and the upper surface of the first base is parallel to the upper surface of the main guide rail pair (2); the first base (25) is provided with a nut clamping seat (10) and a measuring platform (11), one end of the guide rail (4) to be measured is naturally placed on the upper surface of the measuring platform (11), and a measuring tool block (22) is fixedly installed on the guide rail (4) to be measured; and two ends of the tension-compression type force sensor (6) are respectively connected with the measuring platform (11) and the measuring tool block (22).
5. The system for synchronously measuring the preload and the pre-tensioning dragging force of the rolling linear guide rail pair as claimed in claim 4, wherein the other end of the guide rail (4) to be measured is naturally placed on a height-adjustable tailstock (23) arranged at the tail part of the lathe body (1).
6. The system for synchronously measuring the preload and preload drag force of the rolling linear guide pair as claimed in claim 5, wherein the main worktable (III) further comprises a drag tool (20) for dragging the main worktable (III) to slide along the guide rail of the main guide pair (2).
7. The system for synchronously measuring the preload and the pretension towing force of the rolling linear guide rail pair as claimed in claim 6, wherein the main worktable (III) further comprises a linear roller plate (21) arranged in a groove on the upper surface of the measuring platform (11), and one end of the guide rail (4) to be measured is naturally placed on the linear roller plate (21).
8. The system for synchronously measuring the preload and the pretension towing force of the rolling linear guide rail pair according to claim 7, wherein the preload adjustable mechanism (IV) comprises a second base (5), a flat tongs (14), a first extrusion tooling block (15), a second extrusion tooling block (16), a cylindrical pressure sensor (17), a cylindrical stress block (18) and a separate sliding block (19) matched with the guide rail (4) to be measured; the second base (5) is fixed on the lathe bed body (1) and is positioned between the pair of parallel main guide rail pairs (2), the upper surface of the second base is provided with a flat-nose pliers (14), the jaw direction of the flat-nose pliers (14) is consistent with the axial direction of the main guide rail pairs (2), the inner surfaces of two sides of the jaw are respectively provided with a first extrusion tool block (15) and a second extrusion tool block (16) in a contact manner, one side, close to the second extrusion tool block (16), of the first extrusion tool block (15) is provided with a U-shaped groove, and a cylindrical pressure sensor (17) is arranged in the groove; the separating type sliding block (19) is arranged on the opposite inner sides of the first extrusion tool block (15) and the second extrusion tool block (16) in an inverted mode, V-shaped grooves are formed in the separating type sliding block (19) and are respectively close to the two sides of the first extrusion tool block (15) and the second extrusion tool block (16) and are respectively marked as a first V-shaped groove and a second V-shaped groove, meanwhile, a V-shaped groove is also formed in the second extrusion tool block (16) and is arranged on the side opposite to the separating type sliding block (19) and is marked as a third V-shaped groove, the heights of the V-shaped grooves and the cylindrical pressure sensor (17) are the same, cylindrical stress blocks (18) are arranged in the first V-shaped groove and the third V-shaped groove and are respectively marked as a first cylindrical stress block and a second cylindrical stress block, and the first cylindrical stress block is in contact with the cylindrical pressure sensor (17; when the system is used for measurement, the movable side of the movable flat tongs (14) extrudes the second extrusion tool block (16) to move towards the first extrusion tool block (15), so that the second cylindrical stress block is in contact with the second V-shaped groove.
9. The system for synchronously measuring the preload and the pre-tightening dragging force of the rolling linear guide rail pair according to claim 1, is characterized in that a groove parallel to the main guide rail pair (2) is further formed in the lathe bed body (1), and a dragging chain (3) is arranged in the groove and used for placing various cables of the system.
10. The method for measuring the preload and preload pull force synchronization measurement system of the rolling linear guide pair as claimed in any one of claims 1 to 9, wherein said method comprises the steps of:
step 1, a servo motor drives a lead screw to rotate, and a lead screw nut drives a main toolThe workbench further drives the guide rail to be tested to move at a uniform speed along the axial direction of the main guide rail pair, the numerical values of the multiple groups of tension-compression type force sensors are recorded, and the average value of all the numerical values is calculated to be used as the no-load pre-tightening dragging force f0；
Step 2, naturally placing the guide rail to be measured on the flat tongs, adjusting the opening size of a jaw of the flat tongs, driving the first extrusion tool block and the second extrusion tool block to tightly press the separated slide block of the guide rail to be measured until the numerical value of the cylindrical pressure sensor is equal to a preset preload value, stopping adjusting the flat tongs, and recording the numerical value of the cylindrical pressure sensor at the moment as the preload value of the guide rail to be measured
And 3, driving a screw rod to rotate by a servo motor, driving a main workbench by a screw rod nut to further drive the guide rail to be tested to move at a constant speed along the axial direction of the main guide rail pair at the movement speed in the step 1, recording the numerical values of a plurality of groups of tension-compression type force sensors, and calculating the average value of all the numerical values, and recording the average value as f1；
Step 4, finding f1And f0Difference f of1-f0Taking the difference value as a corresponding preload value of the guide rail to be detected as
Pre-tightening drag force;
and 5, repeating the steps 2 to 4 to obtain the pre-tightening dragging force corresponding to different pre-loading values of the guide rail to be tested.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010022138.7A CN111366363A (en) | 2020-01-09 | 2020-01-09 | System and method for synchronously measuring preload and pre-tightening dragging force of rolling linear guide rail pair |
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| CN202010022138.7A CN111366363A (en) | 2020-01-09 | 2020-01-09 | System and method for synchronously measuring preload and pre-tightening dragging force of rolling linear guide rail pair |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114624013A (en) * | 2022-03-17 | 2022-06-14 | 清华大学 | Pre-tightening force adjusting and dragging force testing device for rolling linear guide rail pair |
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| CN110082238A (en) * | 2019-04-29 | 2019-08-02 | 南京理工大学 | A kind of ball screw assembly, resultant wear coefficient measuring method |
| CN110095280A (en) * | 2019-04-29 | 2019-08-06 | 南京理工大学 | A kind of linear rolling guide resultant wear coefficient testing method |
| CN110595771A (en) * | 2019-08-14 | 2019-12-20 | 南京理工大学 | Synchronous rapid measuring device and method for preload and friction force of rolling linear guide rail pair |
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| CN104236483A (en) * | 2014-09-22 | 2014-12-24 | 张家港斯克斯精密机械科技有限公司 | Device and method for measuring precision and friction force of rolling linear guide rail pair |
| CN110082238A (en) * | 2019-04-29 | 2019-08-02 | 南京理工大学 | A kind of ball screw assembly, resultant wear coefficient measuring method |
| CN110095280A (en) * | 2019-04-29 | 2019-08-06 | 南京理工大学 | A kind of linear rolling guide resultant wear coefficient testing method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114624013A (en) * | 2022-03-17 | 2022-06-14 | 清华大学 | Pre-tightening force adjusting and dragging force testing device for rolling linear guide rail pair |
| CN114624013B (en) * | 2022-03-17 | 2023-03-10 | 清华大学 | Pre-tightening force adjusting and dragging force testing device for rolling linear guide rail pair |
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Application publication date: 20200703 |
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