CN210588436U - Ball arm instrument special fixture for numerical control machine tool - Google Patents
Ball arm instrument special fixture for numerical control machine tool Download PDFInfo
- Publication number
- CN210588436U CN210588436U CN201921359909.0U CN201921359909U CN210588436U CN 210588436 U CN210588436 U CN 210588436U CN 201921359909 U CN201921359909 U CN 201921359909U CN 210588436 U CN210588436 U CN 210588436U
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- Prior art keywords
- vertical support
- machine tool
- numerical control
- control machine
- special fixture
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 3
- 239000010962 carbon steel Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000005259 measurement Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model discloses a special fixture for a ball arm instrument of a numerical control machine tool, which comprises a horizontal base, a vertical support, a slide seat, a first screw rod, a backing plate, a slide block, a second screw rod, a nut, a connecting plate and a connecting rod; the horizontal base is of a cuboid stacking structure; step threaded holes are arranged in the middle of the horizontal base; the vertical support is in the middle of a cuboid structure and is provided with a hollow groove; a sliding block is arranged in the hollow groove of the vertical support; a through hole is transversely arranged in the middle of the sliding block, and a first screw rod is arranged in the through hole; the first screw rod is provided with a backing plate and a sliding block and is fixed with the sliding seat through threads at the bottom; the backing plate is arranged on the outer side of the back of the vertical support; the hinged clamping piece is hinged and fixed with the connecting plate through a second screw and a nut; the back of the connecting plate is provided with a threaded hole; the bottom of the connecting rod is provided with threads and is fixed with a threaded hole at the back of the connecting plate; the top end of the connecting rod is provided with a groove.
Description
Technical Field
The utility model relates to a digit control machine tool measuring equipment technical field, concretely relates to club appearance special fixture for digit control machine tool.
Background
With the improvement of the design level, the manufacturing process, the performance of the used basic materials, the numerical control system and other technologies of the machine tool, the proportion of thermal errors, system control errors and the like in machine tool errors is greatly reduced, and the proportion of geometric errors caused by the manufacturing of an assembly machine and the deformation of a machine body and parts is not reduced and inversely increased. The geometric error accounts for about 40-70% of the total processing error of the numerical control machine, the proportion of the geometric error is different along with the different precision grades of the numerical control machine, generally, the higher the precision is, the larger the proportion of the geometric error of the machine tool is, and in some high-grade precise numerical control machines, the geometric error is often the most main error source. Therefore, the influence of the geometric error on the precision of the machine tool feeding system is reduced, and the improvement of the machining precision of the machine tool is important; at present, the ball bar instrument is widely applied to the evaluation of the geometric accuracy of a machine tool, and a plurality of errors of a motion axis of the machine tool can be identified through a circle test. Two precise small balls are respectively installed at two ends of a measuring rod of the ball rod instrument: the precise displacement sensor is arranged between the balls, and the two small balls are respectively connected with the measuring part of the machine tool through the magnetic support. In addition, circle tests of different diameters are performed for installation convenience. The magnetic support adopts a three-point supporting structure, and the small balls are ensured to be in close contact with the magnetic support. When there is relative movement between the parts to be measured in the machine tool, the displacement sensor in the measuring rod measures the displacement elongation of the rod.
In the actual measurement process, in order to realize the measurement state change of different heights and measurement lengths, the fixing of the pre-designed installation position is realized by utilizing a cushion block or an extension rod; these temporary clamps have the drawback of being highly inaccurately controllable, with angles that do not meet the expected requirements; therefore, the measurement application range of the ball bar instrument is influenced, and the designed measurement track cannot be realized. Therefore, in order to complete the operation measurement of different heights and different angles in XY, YZ and XZ planes, a ball rod instrument connecting rod piece for measuring the roundness of the machine tool of the multi-axis numerical control machine tool needs to be designed.
Disclosure of Invention
According to the deficiency of the prior art, the utility model provides a club appearance special fixture for digit control machine tool. The device realizes the quantifiable adjustment of the installation height and the installation angle of the ball rod instrument in the same measurement plane, and the ball rod instrument can run and measure in multiple planes.
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a special fixture for a ball arm instrument of a numerical control machine tool comprises a horizontal base, a vertical support, a sliding seat, a first screw, a base plate, a sliding block, a second screw, a nut, a connecting plate and a connecting rod; the horizontal base is of an upper and lower flat cuboid stacking structure, and threaded holes are formed in two sides of a cuboid on the bottom layer; more than one step threaded hole is arranged in the middle of the horizontal base; the vertical support is in the middle of a cuboid structure and is provided with a hollow groove; the bottom of the vertical support is provided with a bolt matched with the step threaded hole; the front side of the vertical support is provided with height scales; a sliding block is arranged in the hollow groove of the vertical support; a through hole is transversely arranged in the middle of the sliding block, and a first screw rod is arranged in the through hole; the sliding seat is a hinged clamping piece structure with a plate-shaped back; the first screw rod is provided with a backing plate and a sliding block and is fixed with the sliding seat through threads at the bottom; the backing plate is arranged on the outer side of the back of the vertical support; the side surface of the hinged clamping piece of the sliding seat is provided with angle scales, and the hinged clamping piece is hinged and fixed with the connecting plate through a second screw rod and a nut; the connecting plate is a U-shaped connecting piece; the back of the connecting plate is provided with a threaded hole; the bottom of the connecting rod is provided with threads and is fixed with a threaded hole at the back of the connecting plate; the top end of the connecting rod is provided with a groove which can be absorbed and buckled with a magnetic end of the cue instrument.
Preferably, the scale range on the vertical support is 0-200 mm.
Preferably, the scale on the slide is in the range-45 ° to-60 °.
Preferably, the connecting rod is made of iron or carbon steel.
Preferably, the width of the backing plate is larger than that of the hollow groove of the vertical support.
Preferably, the step threaded holes on the horizontal base are arranged in the horizontal direction.
Preferably, starting point marks are arranged on the side face of the sliding seat and correspond to the same side of the vertical support scale.
The utility model discloses beneficial effect has following several:
1. the measuring state change of different heights and measuring lengths is realized through the clamp, and the operation measurement of different heights and different angles in XY, YZ and XZ planes is completed;
2. the clamp is buckled with the existing ball arm instrument in a magnetic adsorption mode, so that the installation is more convenient;
3. the clamp is provided with three variables, and measurement operation can be performed by controlling one to two groups of variables, so that data are obtained more accurately.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the explosion structure of the present invention.
Fig. 3 is a schematic structural diagram of the slide seat of the present invention.
Fig. 4 is a schematic view of the bottom structure of the vertical support of the present invention.
Fig. 5 is a diagram of the overall connection effect of the present invention.
In the figure, a horizontal base 1, a vertical support 2, a sliding seat 3, a first screw rod 4, a backing plate 5, a sliding block 6, a second screw rod 7, a nut 8, a connecting plate 9, a connecting rod 10 and a ball rod instrument 11.
Detailed Description
In order to better show the content of the present invention, the present invention will be further described in detail with reference to the accompanying drawings.
As shown in the figure, the special fixture for the ball arm instrument for the numerical control machine tool comprises a horizontal base 1, a vertical support 2, a sliding seat 3, a first screw rod 4, a base plate 5, a sliding block 6, a second screw rod 7, a nut 8, a connecting plate 9 and a connecting rod 10; the horizontal base 1 is of an upper and lower flat cuboid stacking structure, threaded holes are formed in two sides of a cuboid on the bottom layer, and the threaded holes can be in threaded fixation with a machine tool workbench; more than one step threaded holes are arranged in the middle of the horizontal base 1 and are horizontally arranged, and the threaded holes are adjustment variables in the horizontal direction and therefore must be on the same straight line; the vertical support 2 is in the middle of a cuboid structure and is provided with a hollow groove; the bottom of the vertical support 2 is provided with a bolt matched with the step threaded hole; the front side of the vertical support 2 is provided with height scales, and the scale range is recommended to be set in a range of 0-200 mm, and the scale range is a common measurement range; a sliding block 6 is arranged in a hollow groove of the vertical support 2, and the sliding block 6 can slide up and down in the hollow groove; a through hole is transversely arranged in the middle of the sliding block 6, and a first screw rod 4 is arranged in the through hole; the sliding seat 3 is a hinged clamping piece structure with a plate-shaped back; a threaded hole is formed in the middle of the back of the sliding seat 3, a base plate 5 and a sliding block 6 are connected to the first screw rod 4 in series and fixed with the sliding seat 3 through threads at the bottom, and therefore the sliding seat 3 can be driven to be adjusted up and down through the up-and-down sliding of the sliding block 6; starting point marks are arranged on the side face of the sliding seat and correspond to the same side of the scale of the vertical support, and if the marks are not arranged, the position of the point corresponding to the bottom of the scale of the vertical support when the sliding seat slides up and down cannot be known; the backing plate 5 is arranged on the outer side of the back of the vertical support 2, the width of the backing plate 5 is larger than that of the hollow groove of the vertical support 2, and after the height is adjusted, the bolt can be screwed down to enable the backing plate 5 to be tightly pressed on the vertical support 2 to prevent distance deviation caused by sliding; the side surface of the hinged clamping piece of the sliding seat 3 is provided with angle scales which have the most common scale range in accordance with the functions of the angle scales, and the hinged clamping piece is hinged and fixed with the connecting plate 9 through a second screw 7 and a nut 8; the connecting plate 9 is a U-shaped connecting piece and can rotate by a hinging and fixing method; the back of the connecting plate 9 is provided with a threaded hole; the bottom of the connecting rod 10 is provided with threads and is fixed with a threaded hole at the back of the connecting plate 9; the top end of the connecting rod 10 is provided with a groove which can be absorbed and buckled with a magnetic end head of the cue stick instrument 11, so that the connecting rod is made of strong magnetic materials such as iron, carbon steel, tungsten steel and the like; in the above, if not separately described, the fixing method is performed by welding or screwing means commonly used by those skilled in the art.
As shown in the figure, firstly, fixing a horizontal base 1 of the clamp on a workbench of a numerical control machine tool by a thread fixing method; then, the adjusting variables are controlled, such as step threaded holes of the horizontal base 1, the bottom of the vertical support 2 can be selectively fixed, and the sliding seat 3 connected with the vertical support 2 can be adjusted in the vertical direction through the first screw rod 4 and can be adjusted in the angle through the second screw rod 7 at the sliding seat 3; and finally, the bottom of the ball arm instrument 11 is connected with a groove directly magnetically adsorbed to the end of the connecting rod, and the groove is in nested fit with the magnetic end.
Claims (7)
1. A special fixture for a ball arm instrument of a numerical control machine tool comprises a horizontal base, a vertical support, a sliding seat, a first screw, a base plate, a sliding block, a second screw, a nut, a connecting plate and a connecting rod; the horizontal base is of an upper and lower flat cuboid stacking structure, and threaded holes are formed in two sides of a cuboid on the bottom layer; more than one step threaded hole is arranged in the middle of the horizontal base; the vertical support is in the middle of a cuboid structure and is provided with a hollow groove; the bottom of the vertical support is provided with a bolt matched with the step threaded hole; the front side of the vertical support is provided with height scales; a sliding block is arranged in the hollow groove of the vertical support; a through hole is transversely arranged in the middle of the sliding block, and a first screw rod is arranged in the through hole; the sliding seat is a hinged clamping piece structure with a plate-shaped back; the first screw rod is provided with a backing plate and a sliding block and is fixed with the sliding seat through threads at the bottom; the backing plate is arranged on the outer side of the back of the vertical support; the side surface of the hinged clamping piece of the sliding seat is provided with angle scales, and the hinged clamping piece is hinged and fixed with the connecting plate through a second screw rod and a nut; the connecting plate is a U-shaped connecting piece; the back of the connecting plate is provided with a threaded hole; the bottom of the connecting rod is provided with threads and is fixed with a threaded hole at the back of the connecting plate; the top end of the connecting rod is provided with a groove which can be absorbed and buckled with a magnetic end of the cue instrument.
2. The special fixture for the ball arm instrument of the numerical control machine tool as claimed in claim 1, wherein the scale range on the vertical support is 0-200 mm.
3. The special fixture for the ball arm instrument of the numerical control machine according to claim 1, wherein the scale on the slide base ranges from-45 ° to-60 °.
4. The special fixture for the ball arm instrument of the numerical control machine tool as claimed in claim 1, wherein the connecting rod is made of iron or carbon steel.
5. The special fixture for the ball arm instrument of the numerical control machine tool as claimed in claim 1, wherein the width of the base plate is greater than the width of the hollow groove of the vertical support.
6. The special fixture for the ball arm instrument of the numerical control machine tool as claimed in claim 1, wherein the step threaded holes on the horizontal base are arranged in a horizontal direction.
7. The special fixture for the ball arm instrument of the numerical control machine tool as claimed in claim 1, wherein the side surface of the slide base corresponding to the same side of the vertical support scale is provided with a starting point mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921359909.0U CN210588436U (en) | 2019-08-21 | 2019-08-21 | Ball arm instrument special fixture for numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921359909.0U CN210588436U (en) | 2019-08-21 | 2019-08-21 | Ball arm instrument special fixture for numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210588436U true CN210588436U (en) | 2020-05-22 |
Family
ID=70714048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921359909.0U Expired - Fee Related CN210588436U (en) | 2019-08-21 | 2019-08-21 | Ball arm instrument special fixture for numerical control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210588436U (en) |
-
2019
- 2019-08-21 CN CN201921359909.0U patent/CN210588436U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200522 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |