CN111089693A - Automatic change and grind some equipment - Google Patents
Automatic change and grind some equipment Download PDFInfo
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- CN111089693A CN111089693A CN201911294386.0A CN201911294386A CN111089693A CN 111089693 A CN111089693 A CN 111089693A CN 201911294386 A CN201911294386 A CN 201911294386A CN 111089693 A CN111089693 A CN 111089693A
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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
- G01M5/00—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings
- G01M5/0075—Investigating the elasticity of structures, e.g. deflection of bridges or air-craft wings by means of external apparatus, e.g. test benches or portable test systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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Abstract
The invention discloses automatic grinding equipment, which belongs to the technical field of machine tool machining and aims to solve a series of problems of complex operation, low efficiency, low automation degree, low safety and the like of automatic grinding in the manufacturing process of a large-scale machine tool or machine; the electric control system is respectively and electrically connected with the power device, the jack and the pressure sensor; the ball screw pair comprises a screw and nuts arranged on the screw, two ends of the screw are fixed on the two support frames through bearings, the power device is connected with the screw, and the power device controls the rotation and stop of the screw. The surface of the lead screw is provided with external threads, and the nut is provided with internal threads matched with the external threads. The nut is also provided with a connecting hole. The grinding point operation is simple and easy, safe and reliable.
Description
Technical Field
The invention belongs to the technical field of machine tool machining, and particularly relates to automatic grinding equipment.
Background
The scraping is a bench work for scraping trace metal on the surface of a processed workpiece by using a scraper so as to improve the surface shape precision and the contact condition between matched surfaces. Skiving is an important method of final finishing of various profiles in machine manufacturing and repair, such as machine tool guide surfaces, joint surfaces, bearing shells, mating spheres, and the like. The scraping improves the matching precision between the interactive matching parts and improves the oil storage condition, in the machine tool assembling process, a sliding point grinding method is adopted before the scraping of the sliding joint surface or the fixed joint surface, the matching surface is subjected to point grinding operation, the matching surfaces are coated with pigment, the two mutually matching surfaces are subjected to short-distance reciprocating sliding, the number of contact points in the area of the matching surface according to each square inch (25mmX25mm) is detected, the number of contact hard points is unchanged when the point grinding method is suitable for the sliding joint surface, and is manufactured and used, and the contact rigidity can be ensured to be stable.
However, most of the manufacturing companies of numerical control equipment in the market currently produce and manufacture numerical control machines, especially relate to the assembly process that the guide rail, the slide block, etc. have higher cooperation quality requirements to the contact surface, the method of hoisting the grinding point of the large-scale fitting piece mainly adopts the gantry crane to hoist, fix one of the two parts needing grinding point on the working ground, hoist the other part with the gantry crane, make the two cooperate, carry on the grinding point operation, this method has the following disadvantages:
1. when the grinding point operation is carried out between large parts, the gantry hoisting method is adopted, the operation is complicated, the consumed time is long, the automation degree is low, and the working efficiency is low.
2. The gantry hoisting method is used for grinding point operation, the requirement on the operation process is stable, the requirement on the operation level of workers is high, the sizes of workpieces and equipment are large, the operation is difficult, and the safety is low.
Disclosure of Invention
In view of the above, the present invention is directed to an automated point grinding apparatus, which solves a series of problems, such as complicated operation, low efficiency, low automation degree, and low safety, of automated point grinding operation in a large machine tool or a machine manufacturing process, and makes the point grinding operation simple, safe and reliable.
Based on the above purpose, the present invention provides an automatic grinding point device, which includes a base installed on the ground, a pressure sensor disposed on the base, a support frame disposed on the base, a ball screw pair disposed on the support frame, a power device disposed on the support frame, an electrical control system disposed on the support frame, a workbench disposed on the ground, and a plurality of sets of jacks disposed at the bottom of the workbench; the power device is electrically connected with the electric control system through a lead; the electric control system is also electrically connected with the jack and the pressure sensor respectively; the ball screw pair comprises a screw and nuts arranged on the screw, two ends of the screw are fixed on the two support frames through bearings, the power device is connected with the screw, and the power device controls the rotation and stop of the screw. The surface of the lead screw is provided with external threads, and the nut is provided with internal threads matched with the external threads. The nut is also provided with a connecting hole.
Optionally, the bases are four groups, the four groups of bases are distributed on four corners of a rectangular figure on the ground, the support frame is n-shaped, each support frame comprises two support legs, and the two support legs of the support frame are respectively arranged at the tops of the two bases.
Optionally, two ends of the bottom of the workbench are respectively provided with more than one group of jacks.
Optionally, the number of the jacks is more than four, and each end of the workbench is provided with more than two sets of jacks.
Optionally, the workbench comprises a base, a top plate arranged above the base and a rotating rod arranged between the top plate and the base, wherein a mounting counter bore is formed in the lower surface of the top plate, the lower end of the rotating rod is fixedly connected with the base, and the upper end of the rotating rod is inserted into the mounting counter bore of the top plate.
Optionally, the rotating rod is perpendicular to the horizontal plane.
Optionally, the axis of the mounting counterbore passes through the center of gravity of the top plate.
The invention has the beneficial effects that:
1. the problems of complex operation and low efficiency of evaluating the contact rigidity of the machine tool matching surface are solved.
2. The problems of high requirement on the technical level of workers and low automation degree of grinding point operation in the process of matching large parts are solved.
3. The problem of when traditional large-scale spare part used portal crane's mode to carry out the operation of grinding a point, the security can not obtain sufficient guarantee is solved.
Drawings
FIG. 1 is a schematic diagram of an automated point of interest device according to an embodiment of the present invention.
Fig. 2 is a schematic side view of a barrel of an automated point grinding apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it should be noted that "first" and "second" are merely for convenience of description and should not be construed as limitations of the embodiments of the present invention, and they are not described in any more detail in the following embodiments.
Example 1:
as shown in the figure, the provided automatic grinding point equipment comprises a base 3 installed on the ground, wherein a pressure sensor 8 is arranged at the bottom of the base 3, the pressure sensor 8 detects the total weight of the base 3 and the equipment borne by the base, and the load of the received external force can be obtained after the self weight of the equipment is subtracted. The automatic grinding point equipment further comprises a support frame 6 arranged on the base 3, a ball screw pair arranged on the support frame 6, a power device 7 arranged on the support frame 6, an electric control system 10 arranged on the support frame 6, a workbench 13 arranged on the ground and a plurality of groups of jacks 11 arranged at the bottom of the workbench 13.
The base 3 is four groups, and four group's bases 3 distribute on the four corners of a rectangle figure subaerial, support frame 6 is n shape, and every support frame 6 contains two stabilizer blades, and two stabilizer blades of support frame 6 set up respectively at the top of two bases 3.
The ball screw pair comprises a screw 5 and a nut 4 arranged on the screw 5, two ends of the screw 5 are fixed on two support frames 6 through bearings, a power device 7 is connected with the screw 5, and the power device 7 controls the rotation and stop of the screw 5. The surface of the screw rod 5 is provided with an external thread, and the nut 4 is provided with an internal thread matched with the external thread. And the nut 4 is also provided with a connecting hole.
The power device 7 is electrically connected with the electric control system 10 through a lead. The electric control system 10 controls the operation and stop of the power plant 7. The electrical control system 10 is also electrically connected with the jack 11 and the pressure sensor 8 respectively.
The two ends of the bottom of the working platform 13 are respectively provided with more than one group of jacks 11, and the jacks 11 at the two ends of the working platform 13 control the height and the inclination angle of the working platform 13 together. In order to better control the posture of the workbench 13, the jacks 11 are more than four groups, and more than two groups of jacks 11 are arranged at each end of the workbench 13. The small-angle inclination of the working platform 13 is realized by adjusting the heights of the jacks 11 at the two ends.
When in grinding operation, a first workpiece 1 and a second workpiece 2 are matched according to a grinding surface, then the first workpiece 1 and the second workpiece 2 are integrally hung on a workbench, the second workpiece 2 positioned below is fixedly connected on the workbench 13, the moving direction of the relative movement between the first workpiece 1 and the second workpiece 2 is ensured to be consistent with the axial direction of a screw 5 when in grinding operation, the height of the workbench 13 is adjusted through a jack 11, so that the upper end surface of the first workpiece 1 positioned above the second workpiece 2 is basically superposed with the connecting plane of a nut 4, a second connecting hole matched with the connecting hole of the nut 4 is arranged on the upper end surface of the first workpiece 1, the nut 4 is kept not to rotate, the position of the nut 4 on the screw 5 is adjusted through a power device 7, the connecting hole is aligned with the second connecting hole, and the nut 4 is firmly connected with the first workpiece 1 through a bolt, the height of jack 11 is adjusted again, the pressure that makes pressure sensor 8 receive with equal to base 3 and the dead weight of the other equipment of the automatic equipment of putting on base 3, ball screw pair does not receive the vertical decurrent load that arouses because of the connection of bolt this moment promptly, at this moment, ball screw pair only plays the effect that promotes first work piece 1 and slide on second work piece 2, during concrete putting of putting, power device 7 provides power, make first work piece 1 carry out short distance toward compound the grinding on second work piece 2, and then obtain the contact point number of every square inch, and then appraise the contact rigidity between first work piece 1 and the second work piece 2.
Example 2:
further, according to different workpiece structures, grinding point requirements and factory production requirements, the workbench 13 of the grinding point equipment in the case can be transformed into a movable workbench which can be indexed and fixed by 360 degrees, in order to realize 360-degree rotation, the workbench 13 comprises a base, a top plate arranged above the base and a rotating rod arranged between the top plate and the base, the lower surface of the top plate is provided with an installation counter bore, the lower end of the rotating rod is fixedly connected with the base, and the upper end of the rotating rod is inserted into the installation counter bore of the top plate. The rotating rod is vertical to the horizontal plane, and the axis of the mounting counter bore penetrates through the center of gravity of the top plate.
The direction automatic following during grinding is realized, the installation direction between the first workpiece 1 and the second workpiece 2 does not need to be considered, and the method is convenient and quick. The 360-degree indexable workbench can also be designed in a production line of a factory to the maximum extent, can meet the requirement of installation of workpieces to be ground in any direction, saves unnecessary positioning and orienting work during workpiece tooling to be ground, can save mass production time, and improves labor efficiency.
The embodiments of the invention are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (7)
1. An automatic grinding point device is characterized by comprising a base (3) arranged on the ground, a pressure sensor (8) arranged on the base (3), a support frame (6) arranged on the base (3), a ball screw pair arranged on the support frame (6), a power device (7) arranged on the support frame (6), an electric control system (10) arranged on the support frame (6), a workbench (13) arranged on the ground and a plurality of groups of jacks (11) arranged at the bottom of the workbench (13); the power device (7) is electrically connected with the electric control system (10) through a lead; the electric control system (10) is also electrically connected with the jack (11) and the pressure sensor (8) respectively; the ball screw pair comprises a screw (6) and a nut (4) arranged on the screw (6), two ends of the screw (6) are fixed on two support frames (6) through bearings, a power device (7) is connected with the screw (6), and the power device (7) controls the rotation and stop of the screw (6). The surface of the screw rod (6) is provided with an external thread, and the nut (4) is provided with an internal thread matched with the external thread. And the nut (4) is also provided with a connecting hole.
2. The automated point of investigation apparatus according to claim 1, characterized in that the bases (3) are in four groups, four groups of bases (3) being distributed on the ground at the four corners of a rectangular figure, the support frame (6) being n-shaped, each support frame (6) comprising two legs, the two legs of the support frame (6) being arranged on top of two bases (3), respectively.
3. The automated point grinding apparatus according to claim 1, wherein the table (13) is provided with more than one set of jacks (11) at each end of the bottom thereof.
4. The automated point grinding apparatus according to claim 3, wherein the jacks (11) are provided in four or more groups, and two or more groups of jacks (11) are provided at each end of the table (13).
5. The automated grinding equipment according to any one of claims 1 to 4, wherein the working table (13) comprises a base, a top plate arranged above the base and a rotating rod arranged between the top plate and the base, the lower surface of the top plate is provided with a mounting counter bore, the lower end of the rotating rod is fixedly connected with the base, and the upper end of the rotating rod is inserted into the mounting counter bore of the top plate.
6. The automated point of investigation apparatus of claim 5, wherein the swivel is perpendicular to a horizontal plane.
7. The automated point lapping apparatus of claim 5, wherein the axis of the mounting counterbore passes through the center of gravity of the top plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911294386.0A CN111089693B (en) | 2019-12-16 | 2019-12-16 | Automatic change and grind some equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911294386.0A CN111089693B (en) | 2019-12-16 | 2019-12-16 | Automatic change and grind some equipment |
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| Publication Number | Publication Date |
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| CN111089693A true CN111089693A (en) | 2020-05-01 |
| CN111089693B CN111089693B (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911294386.0A Active CN111089693B (en) | 2019-12-16 | 2019-12-16 | Automatic change and grind some equipment |
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