CN116372534B - Ball screw assembly method based on machine tool - Google Patents
Ball screw assembly method based on machine tool Download PDFInfo
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- CN116372534B CN116372534B CN202310603749.4A CN202310603749A CN116372534B CN 116372534 B CN116372534 B CN 116372534B CN 202310603749 A CN202310603749 A CN 202310603749A CN 116372534 B CN116372534 B CN 116372534B
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- guide rail
- bottom plate
- nut seat
- workbench bottom
- ball screw
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- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000012360 testing method Methods 0.000 claims abstract description 48
- 238000009434 installation Methods 0.000 claims abstract description 28
- 238000004088 simulation Methods 0.000 claims abstract description 28
- 238000007689 inspection Methods 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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- Engineering & Computer Science (AREA)
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Abstract
The invention relates to the technical field of machine tools, and provides a ball screw assembly method based on a machine tool. The ball screw assembly method based on the machine tool comprises the following steps: the guide rail is utilized to assemble the sliding block on the bottom plate of the workbench; separating a workbench bottom plate from a guide rail base, and installing a nut seat and a test rod on the workbench bottom plate; measuring parallelism of the test rod and a reference surface of the simulation guide rail tool; adjusting the nut seat to enable the test rod and the guide rail to be parallel in a vertical plane and a horizontal plane; assembling a workbench bottom plate on a guide rail base, and assembling a front support and a rear support on the guide rail base; the positions and the heights of the front support and the rear support are adjusted; and (3) removing the test rod, and connecting the lead screw with the nut seat, the front support and the rear support respectively. The ball screw assembly method based on the machine tool improves the installation position precision of the nut seat, increases the operation space for adjusting the position of the nut seat, and ensures the coaxiality of the axis of the screw installation hole of the nut seat of the workbench and the axis of screw rotation.
Description
Technical Field
The invention relates to the technical field of machine tools, in particular to a ball screw assembly method based on a machine tool.
Background
The ball screw is used as a transmission device of the machine tool, the assembly precision of the ball screw is critical to ensuring the positioning precision and the machining effect of the machine tool, and the main factor for determining the assembly precision of the ball screw is the parallelism between the rotation axis of the ball screw and the linear guide surface of the machine tool.
In the existing screw assembly method, a nut seat is arranged on a workbench in advance, and a test rod is arranged in the nut seat. The workbench is arranged on the plane of the sliding block, so that the parallelism of the test rod and the guide rail in the vertical plane is ensured. And then installing front and rear supports of the screw rod, marking the surface through a test rod installed on the nut seat, and adjusting the positions of the front and rear supports to ensure the parallelism of the front and rear support holes and the linear guide rail in a vertical plane and the coaxiality of the front and rear support holes. The ball screw passes through the nut seat and is installed on the motor seat and the bearing seat, and the parallelism of the ball screw and the linear guide rail is adjusted. And finally, rotating the nut to enable the end face of the nut seat to be tightly close to the flange face of the nut, tightening the bolt and tightening by torsion, thus completing the assembly of the screw rod.
When the parallelism of rod inspection and guide rail is adjusted, the nut seat is inconvenient to adjust in height, and the installation position of the sliding block is uncertain, so that the position of the nut seat relative to the guide rail cannot be guaranteed, the motor seat and the rear bearing seat cannot be adjusted in place, the coaxiality of the axis of the screw rod installation hole of the nut seat of the workbench and the axis of screw rod rotation cannot be guaranteed, and the assembly efficiency and the machining effect are reduced.
Disclosure of Invention
The ball screw assembly method based on the machine tool provided by the invention effectively ensures that the position of the nut seat can be accurately adjusted in place, ensures the parallelism between the nut seat and the guide rail, improves the accuracy of the installation position of the nut seat, increases the operation space for adjusting the position of the nut seat, ensures that the installation and adjustment of the nut seat are more convenient, further ensures the coaxiality between the axis of the screw installation hole of the nut seat of the workbench and the rotation axis of the screw, and effectively improves the assembly efficiency and the machining effect.
The invention provides a ball screw assembly method based on a machine tool, which comprises a workbench bottom plate, a screw and a guide rail base, wherein the guide rail base is provided with a guide rail, a front support and a rear support, and the workbench bottom plate is provided with a nut seat; the method comprises the following steps:
the guide rail is utilized to assemble the sliding block on the workbench bottom plate;
separating the workbench bottom plate from the guide rail base, and installing the nut seat and the test rod on the workbench bottom plate;
clamping a simulation guide rail tool into the sliding block, and measuring parallelism between the test rod and a reference surface of the simulation guide rail tool by using a three-coordinate measuring machine;
the nut seat is adjusted so that the test rod and the simulation guide rail tool are parallel in a vertical plane and a horizontal plane;
assembling the workbench bottom plate to the guide rail base, and assembling the front support and the rear support to the mounting surface of the guide rail base;
the position and the height of the front support and the rear support are adjusted by matching the dial indicator with the test rod;
and removing the test rod, and connecting the lead screw with the nut seat, the front support and the rear support respectively.
According to the ball screw assembly method based on the machine tool provided by the embodiment of the invention, the step of assembling the sliding block on the workbench bottom plate by utilizing the guide rail comprises the following steps of:
placing the workbench bottom plate on the mounting surface of the sliding block, and screwing a screw into a preset depth of a mounting hole of the sliding block;
and (3) marking a dial indicator on a reference surface of the workbench bottom plate, pushing the workbench bottom plate, adjusting the side surface of the workbench bottom plate to be parallel to the guide rail, and applying torsion to the screw.
According to an embodiment of the present invention, before the step of assembling the slider to the table base plate by using the guide rail, the method further includes:
and assembling a plurality of sliding blocks at predetermined positions corresponding to the guide rails.
According to the ball screw assembly method based on the machine tool provided by the embodiment of the invention, the step of adjusting the positions and the heights of the front support and the rear support by utilizing the matching of the dial indicator and the test rod comprises the following steps:
fixing a universal meter frame on the workbench bottom plate;
the dial indicator is beaten on the rod inspection device;
pushing the workbench bottom plate to enable the test rod to be inserted into the rear support;
and adjusting the position and the height of the rear support according to the change of the dial indicator.
According to the ball screw assembly method based on the machine tool provided by the embodiment of the invention, the step of adjusting the positions and the heights of the front support and the rear support by utilizing the matching of the dial indicator and the test rod further comprises the following steps:
the dial indicator is beaten on the rod inspection device;
pushing the workbench bottom plate to enable the test rod to be inserted into the front support;
and adjusting the position and the height of the front support according to the change of the dial indicator.
According to the ball screw assembly method based on the machine tool provided by the embodiment of the invention, after the step of connecting the screw with the nut seat, the front support and the rear support respectively, the method further comprises the following steps:
and sequentially adding glue and screwing screws for fixing the front support and the rear support.
According to the ball screw assembly method based on the machine tool provided by the embodiment of the invention, before the step of installing the nut seat and the rod inspection on the bottom plate of the workbench, the method further comprises the following steps:
and rotating the workbench bottom plate so that the bottom of the workbench bottom plate faces upwards.
According to the ball screw assembly method based on the machine tool provided by the embodiment of the invention, before the step of connecting the screw with the nut seat, the front support and the rear support respectively, the method further comprises the following steps:
and assembling a rear support bearing on the rear support.
According to the ball screw assembly method based on the machine tool, the preset depth is 2/3 of the length of the screw.
According to the ball screw assembly method based on the machine tool provided by the embodiment of the invention, the distances from the nut seat to the two guide rails are equal.
The above technical solutions in the embodiments of the present invention have at least one of the following technical effects:
according to the ball screw assembly method based on the machine tool, the workbench bottom plate provided with the sliding blocks is separated from the guide rail base, the parallelism of the test rod and the simulation guide rail tool is measured through the three-coordinate measuring machine, and the parallelism and the position degree of the nut seat relative to the guide rail are adjusted, so that the position of the nut seat can be effectively ensured to be accurately adjusted in place, the parallelism of the nut seat and the guide rail is ensured, the installation position precision and the installation efficiency of the nut seat are improved, and meanwhile, the operation space for adjusting the position of the nut seat is increased, so that the installation and adjustment of the nut seat are more convenient. The front support and the rear support are installed by taking the nut seat which is adjusted in place as a reference, so that the position adjustment efficiency of the front support and the rear support is improved, the coaxiality of the axis of the screw rod installation hole of the nut seat of the workbench and the axis of rotation of the screw rod is further ensured, and the assembly efficiency and the machining effect are effectively improved.
Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a machine tool based ball screw assembly method provided by an embodiment of the present invention;
FIG. 2 is a schematic diagram of an assembling structure of a workbench bottom plate when a slider provided in an embodiment of the invention is assembled on the workbench bottom plate;
FIG. 3 is a schematic diagram of an assembly structure of a workbench bottom plate when a simulation guide rail tool provided by the embodiment of the invention is clamped into a slide block;
fig. 4 is a schematic diagram of a front view of a bottom plate of a workbench when a nut seat is connected with a front support and a rear support according to an embodiment of the invention.
Reference numerals:
10. a workbench bottom plate; 11. a nut seat; 12. rod checking; 13. simulating a guide rail tool; 22. a front support; 23. a rear support; 24. a sliding block.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
In embodiments of the invention, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present invention. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
A ball screw assembly method based on a machine tool according to an embodiment of the present invention will be described with reference to fig. 1 to 4.
Fig. 2 illustrates an assembly structure schematic diagram of a workbench bottom plate when a sliding block provided in an embodiment of the invention is assembled on the workbench bottom plate, fig. 3 illustrates an assembly structure schematic diagram of the workbench bottom plate when a simulation guide rail tool provided in an embodiment of the invention is clamped into the sliding block, fig. 4 illustrates a front view structure schematic diagram of the workbench bottom plate when a nut seat provided in an embodiment of the invention is connected with a front support and a rear support, as shown in fig. 2 to 4, a machine tool comprises a workbench bottom plate 10, a lead screw and a guide rail base, guide rails, a front support 22 and a rear support 23 are arranged at the upper part of the guide rail base, two guide rails are arranged in parallel and at intervals, the front support 22 and the rear support 23 are arranged between the two guide rails, and the bottom of the workbench bottom plate 10 is provided with the nut seat 11.
Fig. 1 illustrates a flow of a ball screw assembly method based on a machine tool according to an embodiment of the present invention, and as shown in fig. 1, the ball screw assembly method based on a machine tool provided by the present invention includes the following steps:
in step S100, the slider 24 is mounted on the table base 10 by using the guide rail.
Step S200, separating the table base plate 10 from the rail base, and mounting the nut seat 11 and the check rod 12 on the table base plate 10.
After the slider 24 is assembled to the bottom of the table base plate 10, the table base plate 10 is pushed to slide relatively to the rail base, and the table base plate 10 is separated from the rail base together with the slider 24. The nut seat 11 is mounted on the bottom of the workbench bottom plate 10 through bolt connection, and the test rod 12 is inserted into a nut seat hole of the nut seat 11.
Step S300, clamping the simulation guide rail tool 13 into the sliding block 24, and measuring the parallelism of the test rod 12 and the reference surface of the simulation guide rail tool 13 by using a three-coordinate measuring machine.
As shown in fig. 3, by clamping the dummy rail fixture 13 into the slider 24, the slider 24 and the dummy rail fixture 13 are enabled to simulate the actual assembly relationship between the slider 24 and the rail. And measuring the parallelism of the reference surfaces of the test rod 12 and the simulation guide rail tool 13 by using a three-coordinate measuring machine. The measurement method of the flatness of the reference surfaces of the test bar 12 and the simulation guide rail tool 13 is not limited to measurement by a three-coordinate measuring machine, and may be manually measured by a dial indicator or a dial indicator, and the measurement method may be selected according to actual conditions.
Step S400, adjusting the nut seat 11 so that the test rod 12 and the simulation guide rail tool 13 are parallel in the vertical plane and the horizontal plane.
When the data detected by the three-coordinate measuring machine reflect that the rod 12 and the simulation guide rail tool 13 are not parallel in the vertical plane, the nut seat 11 is pushed to the side surface parallel to the rod 12 in the vertical plane, so that the rod 12 and the simulation guide rail tool 13 are parallel in the vertical plane, and the parallelism between the rod 12 and the simulation guide rail tool 13 is within the allowable error range.
When the data detected by the three-coordinate measuring machine reflect that the rod 12 and the simulation guide rail tool 13 are not parallel on the horizontal plane, the angle of the installation contact surface between the nut seat 11 and the workbench bottom plate 10 is adjusted, so that the rod 12 and the simulation guide rail tool 13 are parallel on the horizontal plane, and the parallelism between the rod 12 and the simulation guide rail tool 13 is within the allowable error range.
Based on the parallelism detection data between the reference surfaces of the rod inspection 12 and the simulation guide rail tool 13, the parallelism between the vertical plane and the horizontal plane of the rod inspection 12 and the simulation guide rail tool 13 is adjusted, so that the position of the nut seat 11 can be accurately adjusted in place, and the accuracy of the installation position of the nut seat 11 is improved.
Since the step and the previous step are both performed when the bottom of the worktable bottom plate 10 is upward, the operation process is not limited by space, and the operation space for adjusting the position of the nut seat 11 is increased, so that the installation and adjustment of the nut seat 11 are more convenient.
In step S500, the table base plate 10 is mounted to the rail base, and the front mount 22 and the rear mount 23 are mounted to the mounting surface of the rail base.
In this embodiment, when the table base plate 10 is reassembled to the rail base, two rails on the rail base are snapped into the corresponding sliders 24, specifically, one of the rails is snapped into the three sliders 24 located on the right side and the other rail is snapped into the three sliders 24 located on the left side, so that the table base plate 10 and the rail base are connected through the sliders 24. The front mount 22 and the rear mount 23 are mounted to the mounting surface of the rail base by bolts.
In step S600, the positions and heights of the front support 22 and the rear support 23 are adjusted by matching the dial indicator with the check rod 12.
And S700, removing the test rod 12, and connecting the lead screw with the nut seat 11, the front support 22 and the rear support 23 respectively.
In this embodiment, the screw is screwed with the nut seat 11, the first end of the screw is connected with the front support 22 through a bearing, and the second end of the screw is connected with the rear support 23 through a bearing, so that the first end of the screw is rotatably matched with the front support 22, and the second end of the screw is rotatably matched with the rear support 23.
According to the ball screw assembly method based on the machine tool provided by the embodiment of the invention, the workbench bottom plate 10 provided with the sliding blocks 24 is separated from the guide rail base, and the parallelism of the test rod 12 and the simulation guide rail tool 13 is measured through the three-coordinate measuring machine, so that the parallelism and the position degree of the nut seat 11 relative to the guide rail are adjusted, the position of the nut seat 11 can be effectively ensured to be accurately adjusted in place, the parallelism of the nut seat 11 and the guide rail is ensured, the installation position precision and the installation efficiency of the nut seat 11 are improved, and meanwhile, the operation space for adjusting the position of the nut seat 11 is increased, so that the installation and adjustment of the nut seat 11 are more convenient. The front support 22 and the rear support 23 are installed by taking the nut seat 11 which is adjusted in place as a reference, so that the position adjustment efficiency of the front support 22 and the rear support 23 is improved, the coaxiality of the axis of the screw mounting hole of the nut seat 11 of the workbench and the axis of rotation of the screw is further ensured, and the assembly efficiency and the processing effect are effectively improved.
In the embodiment of the present invention, the step of assembling the slider 24 to the table base plate 10 using the guide rail includes the steps of:
in step S110, the table base plate 10 is placed on the mounting surface of the slider 24, and the screws are screwed into the mounting holes of the slider 24 to a predetermined depth.
As shown in fig. 2, the workbench bottom plate 10 is lifted by the crown block and the sling, and after the balance is maintained, the workbench bottom plate 10 is slowly placed on the installation surface of the sliding block 24, and in this embodiment, the lifting device may be a crane or other lifting devices. After the workbench bottom plate 10 is placed in place, a plurality of screw mounting holes of the workbench bottom plate 10 are communicated with the screw mounting holes of the plurality of sliding blocks 24 in a one-to-one correspondence manner, screws are screwed into the preset depth of the screw mounting holes of the sliding blocks 24, and the workbench bottom plate 10 is connected with the plurality of sliding blocks 24 through the screws. The predetermined depth is 2/3 of the screw length in this embodiment, although other depths are possible.
In step S120, a dial indicator is placed on the reference surface of the table base plate 10, the table base plate 10 is pushed, the side surface of the table base plate 10 is adjusted to be parallel to the guide rail, and torsion is applied to the screw.
After the workbench bottom plate 10 is connected with the plurality of sliding blocks 24, the universal meter frame of the dial indicator is fixed on the guide rail base, specifically, the magnetic seat of the universal meter frame is placed on the guide rail base, the magnet switch of the magnetic seat is started, and the universal meter frame is adsorbed on the guide rail base through the magnetic attraction of the magnetic seat.
After the universal meter frame is fixed, the universal joint of the universal meter frame is rotated, the measuring head of the dial indicator is contacted with one end of the reference surface of the workbench base plate 10, and after the dial indicator rotates by a certain angle, the workbench base plate 10 is pushed to move towards the other end of the workbench base plate 10, and at the moment, the dial indicator rotates clockwise or anticlockwise. By adjusting the setting angle of the other end of the workbench bottom plate 10, the dial indicator rotates anticlockwise or clockwise, when the rotation angle of the dial indicator at the other end of the workbench bottom plate 10 and the rotation angle of the dial indicator at one end of the workbench bottom plate 10 are within the parallelism tolerance, the parallelism adjustment of the side surface of the workbench bottom plate 10 and the guide rail is completed, and torsion is applied to the screw, so that the screw is screwed down, and the workbench bottom plate 10 and the slide block 24 are fixedly connected.
In the embodiment of the present invention, before the step of assembling the slider 24 to the table base plate 10 using the guide rail, further includes:
step S101, a plurality of sliders 24 are assembled at predetermined positions of the corresponding guide rail.
In the present embodiment, the plurality of sliders 24 are slidably connected to the corresponding guide rail, and the distance between two adjacent sliders 24 and the position of each slider 24 are determined according to actual requirements.
In an embodiment of the present invention, the step of adjusting the positions and heights of the front support 22 and the rear support 23 by using the dial indicator and the check rod 12 in cooperation includes:
in step S610, the gimbal is fixed to the table base plate 10.
In this embodiment, the gimbal is attracted to the table base plate 10 by the magnetic attraction of the magnet base.
In step S621, a dial indicator is marked on the test rod 12.
In this embodiment, the universal joint of the universal meter holder is rotated to bring the measuring head of the dial indicator into contact with the first end of the test rod 12 and rotate the dial indicator clockwise by a certain angle.
In step S631, the table base plate 10 is pushed so that the test rod 12 is inserted into the rear mount 23.
In step S641, the position and height of the rear supporter 23 are adjusted according to the change of the dial indicator.
When the height of the rear support 23 is required to be adjusted, the measuring head of the dial indicator is contacted with the upper part of the first end of the test rod 12, and the pointer of the dial indicator is rotated clockwise by a certain angle. After the test rod 12 is inserted into the rear support 23, if the pointer of the dial indicator rotates clockwise, the axis of the test rod 12 is higher than the support hole axis of the rear support 23, and the position of the rear support 23 is adjusted upwards at this time, so that the support hole axis of the rear support 23 and the axis of the test rod 12 are in the same horizontal plane; if the pointer of the dial indicator rotates anticlockwise, the axis of the test rod 12 is lower than the axis of the support hole of the rear support 23, and the position of the rear support 23 is adjusted upwards at the moment, so that the axis of the support hole of the rear support 23 and the axis of the test rod 12 are in the same horizontal plane.
When the position of the rear support 23 is required to be adjusted, the measuring head of the dial indicator is contacted with the side part of the first end of the test rod 12, and the pointer of the dial indicator is rotated clockwise by a certain angle. After the bar 12 is inserted into the rear support 23, if the pointer of the dial indicator rotates clockwise, the position of the rear support 23 is adjusted towards the direction of the pointer of the dial indicator at the moment, so that the axis of the support hole of the rear support 23 and the axis of the bar 12 are in the same vertical plane; if the pointer of the dial indicator rotates anticlockwise, the position of the back support 23 is adjusted in the direction away from the pointer of the dial indicator at the moment, so that the support hole axis of the back support 23 and the axis of the test rod 12 are in the same vertical plane.
In the embodiment of the present invention, the step of adjusting the positions and heights of the front support 22 and the rear support 23 by using the dial indicator and the check rod 12 in cooperation further comprises:
in step S622, a dial indicator is placed on the test rod 12.
In this embodiment, the gauge head of the dial gauge is in contact with the second end of the test rod 12.
Step S632, pushing the table base plate 10 to insert the test rod 12 into the front support 22.
In step S642, the position and height of the front support 22 are adjusted according to the change of the dial indicator.
According to the ball screw assembly method based on the machine tool provided by the embodiment of the invention, the positions and the heights of the front support 22 and the rear support 23 are adjusted by utilizing the matching of the dial indicator and the check rod 12, so that the coaxiality among the axis of the nut seat 11, the axis of the front support 22 and the axis of the rear support 23 can be within the allowable tolerance range, the position adjustment efficiency and the installation efficiency of the front support 23 and the rear support 23 are improved, and meanwhile, the coaxiality between the screw rotating axis determined by the front support 22 and the rear support 23 and the axis of the check rod 12 can be within the allowable tolerance range, and the coaxiality between the screw installation hole axis of the nut seat 11 of the workbench bottom plate 10 and the screw rotating axis is further ensured, and the assembly efficiency and the machining effect are effectively improved.
In the embodiment of the present invention, before the step of installing the nut seat 11 and the test rod 12 on the table base plate 10, the method further comprises:
step S210, rotating the workbench bottom plate 10 to make the bottom of the workbench bottom plate 10 face upwards, and then making the position of the slide block 24 connected with the workbench bottom plate 10 set up upwards, and at the same time making the installation position of the nut seat 11 set up upwards, so that the adjusting operation process of the nut seat 11 is not limited by space, and the operation space when installing and adjusting the nut seat 11 is increased, so that the installation and adjustment of the nut seat 11 are more convenient.
In the embodiment of the present invention, before the step of connecting the screw to the nut seat 11, the front support 22 and the rear support 23, respectively, it further comprises:
in step S701, the rear mount 23 is bearing-fitted to the rear mount 23. In this embodiment, the rear support 23 bearings are knocked into the support holes of the rear support 23 by nylon or other plastic rods. The front support 22 bearing is mounted in the same manner as the rear support 23 bearing.
In the embodiment of the present invention, after the step of connecting the screw to the nut holder 11, the front mount 22 and the rear mount 23, respectively, further includes:
in step S800, screws for fixing the front mount 22 and the rear mount 23 are sequentially glued and tightened to fix the front mount 22 and the rear mount 23 to the rail base.
In the embodiment of the invention, the distances from the nut seat 11 to the two guide rails are equal, so that the stress balance at the two sides of the workbench bottom plate 10 is ensured, and the structural manufacturability of the ball screw is improved.
A specific embodiment of the machine tool-based ball screw assembly method provided by the present invention is described below with reference to fig. 1 to 4.
In step S1100, the plurality of sliders 24 are assembled at predetermined positions of the corresponding rails, and the plurality of sliders 24 are slidably engaged with the corresponding rails.
In step S1210, the table base plate 10 is lifted by the crown block and the sling, and after the table base plate 10 is balanced, the table base plate 10 is slowly placed on the mounting surface of the slide block 24, the screws are screwed into the screw mounting holes of the slide block 24, the screw screwing depth is 2/3 of the screw length, and the table base plate 10 is connected to the plurality of slide blocks 24 by the screws.
In step S1220, the dial indicator is beaten on the reference surface of the table bottom board 10, the table bottom board 10 is pushed, the side surface of the table bottom board 10 is adjusted to be parallel to the guide rail, and torsion is applied to the screw to tighten the screw, so as to fixedly connect the table bottom board 10 with the slider 24.
In step S1300, the table base plate 10 is separated from the rail base, the table base plate 10 is rotated so that the bottom of the table base plate 10 faces upward, the nut seat 11 is mounted on the bottom of the table base plate 10 by bolting, and the inspection rod 12 is inserted into the nut seat hole of the nut seat 11.
Step S1400, clamping the simulation guide rail tool 13 into the sliding block 24, and measuring the parallelism of the test rod 12 and the reference surface of the simulation guide rail tool 13 by using a three-coordinate measuring machine.
In step S1500, the nut seat 11 is adjusted so that the rod inspection 12 and the simulation guide rail tool 13 are parallel in the vertical plane and the horizontal plane, so that the position of the nut seat 11 can be accurately adjusted in place, and the accuracy of the installation position of the nut seat 11 is improved. The distance between the nut seat 11 and the two guide rails is equal.
In step S1600, the table base plate 10 is mounted to the rail base by the slider 24, and the front mount 22 and the rear mount 23 are mounted to the mounting surface of the rail base by bolts.
In step S1710, the gimbal is fixed to the table base plate 10 by the magnetic attraction of the magnet base.
In step S1720, the gauge head of the dial gauge is brought into contact with the first end or the second end of the rod 12.
In step S1730, table base plate 10 is pushed so that rod 12 is inserted into rear mount 23 or front mount 22.
In step S1740, the position and height of the rear support 23 or the front support 22 are adjusted according to the change of the dial indicator.
In step S1800, the test rod 12 is removed, the front support 22 is assembled with the front support 22, the rear support 23 is assembled with the rear support 23, the screw is screwed with the nut seat 11, the first end of the screw is rotatably matched with the front support 22, and the second end of the screw is rotatably matched with the rear support 23.
In step S1900, screws for fixing the front mount 22 and the rear mount 23 are sequentially screwed to fix the front mount 22 and the rear mount 23 to the rail base.
According to the ball screw assembly method based on the machine tool provided by the embodiment of the invention, the workbench bottom plate 10 provided with the sliding blocks 24 is separated from the guide rail base, and the parallelism of the test rod 12 and the simulation guide rail tool 13 is measured through the three-coordinate measuring machine, so that the parallelism and the position degree of the nut seat 11 relative to the guide rail are adjusted, the position of the nut seat 11 can be effectively ensured to be accurately adjusted in place, the parallelism of the nut seat 11 and the guide rail is ensured, the installation position precision and the installation efficiency of the nut seat 11 are improved, and meanwhile, the operation space for adjusting the position of the nut seat 11 is increased, so that the installation and adjustment of the nut seat 11 are more convenient. The front support 23 and the rear support 23 are installed by taking the nut seat 11 which is adjusted in place as a reference, so that the position adjustment efficiency of the front support 22 and the rear support 23 is improved, the coaxiality of the axis of a screw rod installation hole of the nut seat 11 of the workbench and the axis of rotation of the screw rod is further ensured, and the assembly efficiency and the machining effect are effectively improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. The ball screw assembly method based on the machine tool comprises a workbench bottom plate, a screw and a guide rail base, wherein the guide rail base is provided with a guide rail, a front support and a rear support, and the workbench bottom plate is provided with a nut seat; characterized in that the method comprises the steps of:
the guide rail is utilized to assemble the sliding block on the workbench bottom plate;
separating the workbench bottom plate from the guide rail base, installing the nut seat and the rod inspection on the workbench bottom plate, and inserting the rod inspection into a nut seat hole of the nut seat;
clamping a simulation guide rail tool into the sliding block, and measuring parallelism between the test rod and a reference surface of the simulation guide rail tool by using a three-coordinate measuring machine;
the nut seat is adjusted so that the test rod and the simulation guide rail tool are parallel in a vertical plane and a horizontal plane;
the workbench bottom plate is reassembled on the guide rail base, two guide rails on the guide rail base are clamped into the sliding blocks, and the front support and the rear support are assembled on the installation surface of the guide rail base;
the position and the height of the front support and the rear support are adjusted by matching the dial indicator with the test rod;
and removing the test rod, and connecting the lead screw with the nut seat, the front support and the rear support respectively.
2. The ball screw machine-based assembling method according to claim 1, wherein the step of assembling the slider to the table base plate using the guide rail comprises the steps of:
placing the workbench bottom plate on the mounting surface of the sliding block, and screwing a screw into a preset depth of a mounting hole of the sliding block;
and (3) marking a dial indicator on a reference surface of the workbench bottom plate, pushing the workbench bottom plate, adjusting the side surface of the workbench bottom plate to be parallel to the guide rail, and applying torsion to the screw.
3. The method of assembling a machine tool-based ball screw according to claim 2, wherein prior to the step of assembling the slider to the table base plate using the guide rail, further comprising:
and assembling a plurality of sliding blocks at predetermined positions corresponding to the guide rails.
4. The method of assembling a machine tool based ball screw according to claim 2, wherein said step of adjusting the position and height of said front and rear supports with a dial gauge and said check rod in cooperation comprises:
fixing a universal meter frame on the workbench bottom plate;
the dial indicator is beaten on the rod inspection device;
pushing the workbench bottom plate to enable the test rod to be inserted into the rear support;
and adjusting the position and the height of the rear support according to the change of the dial indicator.
5. The method of assembling a machine tool based ball screw according to claim 2, wherein said step of adjusting the position and height of said front mount and said rear mount with a dial gauge and said check rod in cooperation further comprises:
the dial indicator is beaten on the rod inspection device;
pushing the workbench bottom plate to enable the test rod to be inserted into the front support;
and adjusting the position and the height of the front support according to the change of the dial indicator.
6. The machine tool-based ball screw assembly method according to any one of claims 1 to 5, further comprising, after the step of connecting the screw with the nut mount, the front mount, and the rear mount, respectively:
and sequentially adding glue and screwing screws for fixing the front support and the rear support.
7. The machine tool based ball screw assembly method according to any one of claims 1 to 5, wherein prior to the step of mounting the nut seat and the check rod on the table floor, further comprising:
and rotating the workbench bottom plate so that the bottom of the workbench bottom plate faces upwards.
8. The machine tool based ball screw assembly method according to any one of claims 1 to 5, wherein prior to the step of connecting the screw to the nut mount, the front mount and the rear mount, respectively, further comprises:
and assembling a rear support bearing on the rear support.
9. The machine tool based ball screw assembly method according to any one of claims 2 to 5, wherein the predetermined depth is 2/3 of the screw length.
10. A machine tool based ball screw assembly method according to any one of claims 1 to 5 wherein the distance between the nut seat and both of the guide rails is equal.
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| CN202310603749.4A CN116372534B (en) | 2023-05-26 | 2023-05-26 | Ball screw assembly method based on machine tool |
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| CN202310603749.4A CN116372534B (en) | 2023-05-26 | 2023-05-26 | Ball screw assembly method based on machine tool |
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| CN116372534B true CN116372534B (en) | 2023-08-01 |
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| CN115302316A (en) * | 2022-09-14 | 2022-11-08 | 安徽方程重型装备制造有限公司 | Assembly process of horizontal machining center machine |
| CN115383188A (en) * | 2022-09-05 | 2022-11-25 | 安徽方程重型装备制造有限公司 | Assembling process of fixed beam planer type milling machine |
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| US7089654B2 (en) * | 2002-09-26 | 2006-08-15 | Nsk Ltd. | Ball given quantity supply apparatus and method and apparatus for assembling ball screw apparatus |
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| JP2007178002A (en) * | 2007-02-02 | 2007-07-12 | Nippon Thompson Co Ltd | Sliding device |
| KR20170068911A (en) * | 2015-12-10 | 2017-06-20 | 현대위아 주식회사 | Test bar and installation method for ball screw support bearing unit using the same |
| CN105736663A (en) * | 2016-04-15 | 2016-07-06 | 江苏润德精密机械有限公司 | Assembly method of transmission shaft structure |
| CN208557159U (en) * | 2018-07-05 | 2019-03-01 | 广州明珞汽车装备有限公司 | A kind of gun welder electrode cap polishing device test device |
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| CN115383188A (en) * | 2022-09-05 | 2022-11-25 | 安徽方程重型装备制造有限公司 | Assembling process of fixed beam planer type milling machine |
| CN115302316A (en) * | 2022-09-14 | 2022-11-08 | 安徽方程重型装备制造有限公司 | Assembly process of horizontal machining center machine |
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| CN116372534A (en) | 2023-07-04 |
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