CN210603049U - Deep hole measuring device - Google Patents
Deep hole measuring device Download PDFInfo
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- CN210603049U CN210603049U CN201921819186.8U CN201921819186U CN210603049U CN 210603049 U CN210603049 U CN 210603049U CN 201921819186 U CN201921819186 U CN 201921819186U CN 210603049 U CN210603049 U CN 210603049U
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Abstract
The utility model belongs to the technical field of measuring device, concretely relates to deep hole measuring device, including main scale extension bar and auxiliary scale measuring bar, the one end of auxiliary scale measuring bar can be dismantled and connected with auxiliary scale seat, the one end of main scale extension bar can be dismantled and connected with main scale seat, the other end of main scale extension bar can be dismantled and connected with gauge head, main scale seat and auxiliary scale seat slide coupling, the auxiliary scale measuring bar is equipped with the through-hole that connects with main scale extension bar, the through-hole axial sets up, main scale extension bar can be along the axial movement of this through-hole; the auxiliary ruler seat is provided with an auxiliary ruler, and the main ruler seat is provided with a main ruler. The whole structure is simple, the volume is small, the weight is light, and the use is convenient. Minimum volume Φ 25mm 230mm, weight only 0.53 kg; when the main scale extension bar and the measuring head with the maximum size specification are replaced, the volume phi is 25mm and 230mm, and the weight is only 0.61 kg. The operation is carried out by one hand, and time and labor are saved.
Description
Technical Field
The utility model belongs to the technical field of measuring device, concretely relates to deep hole measuring device.
Background
The turbocharger is a necessary configuration of the current reciprocating diesel engine, gasoline engine and gas engine, and achieves the purposes of improving power, improving economy and meeting emission regulations. The supercharger bearing body is the most important and complex box type casting part, the floating bearing seat is positioned in the center of an oil cavity of the bearing body, a floating bearing positioning hole penetrates from the outer surface of the bearing body to the central axis, the diameter phi of the hole is 4.2mm, the distance between the end face of the hole and the central axis is 30 +/-0.1 mm, and the distance between the end face of the hole and the outer surface of the bearing body is 52 mm.
The current mechanical processing method is to drill a hole with phi 4.2mm from the outer surface of the bearing body to the central axis, enlarge the hole with phi 14.8mm and ensure the distance between the end surface of the hole with phi 4.2mm and the central axis to be 30 +/-0.1 mm indirectly. From the sample detection of the assembled supercharger, the dimension of 30 +/-0.1 mm is unqualified, the tolerance variation range is large and reaches 30 +/-0.7 mm, and partial supercharger is unqualified. The reason is that: the outer surface of the bearing body is the surface of a cast blank, the position degree change is large, and the surface is not perpendicular to the axis of the hole and forms an included angle of 115 degrees; if the adopted universal measuring tool is a depth vernier caliper of 0-250mm, the dimension of 30 +/-0.1 mm cannot be directly measured.
The solving measures comprise: the three-coordinate measuring machine is adopted for measurement, but the measuring rod is not feasible due to short length; the sample plate ruler is adopted for measurement, although the use is convenient, the measurement precision is low, and a specific measurement value cannot be obtained; the conversion is indirect completely according to the feeding scale of the drilling machine, and the process is out of control because the bearing body cannot be inspected after being detached from the workbench.
The bearing positioning hole of the supercharger bearing body is extremely difficult to process, measure and inspect due to the reasons, and the prior art cannot support normal production.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a deep hole measuring device, this measuring device simple structure, can conveniently measure the deep hole of booster bearing body.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a deep hole measuring device comprises a main ruler extension bar and an auxiliary ruler measuring bar, wherein one end of the auxiliary ruler measuring bar is detachably connected with an auxiliary ruler base, one end of the main ruler extension bar is detachably connected with the main ruler base, the other end of the main ruler extension bar is detachably connected with a measuring head, the main ruler base is connected with the auxiliary ruler base in a sliding manner, a through hole connected with the main ruler extension bar is formed in the auxiliary ruler measuring bar and is axially arranged, and the main ruler extension bar can axially move along the through hole; the auxiliary ruler seat is provided with an auxiliary ruler, and the main ruler seat is provided with a main ruler.
The auxiliary ruler seat is a hollow sleeve, the upper end of the hollow sleeve is provided with a notch communicated with the inside, and the notch forms a sliding track connected with the lower end of the main ruler seat in a sliding manner; the lower end of the main ruler seat is provided with a guide block, and the guide block is positioned in the hollow sleeve and is connected with the inside of the hollow sleeve in a sliding manner.
The main ruler is connected with the main ruler seat in a clamping mode, and the main ruler seat is provided with a corresponding groove.
One end of the auxiliary ruler measuring rod is connected with the auxiliary ruler seat through threads, and one end of the main ruler extension rod is connected with the main ruler seat through threads.
And one end of the knurled screw can penetrate through the auxiliary ruler seat to be abutted against the main ruler seat so as to limit the sliding of the auxiliary ruler seat.
The auxiliary ruler is arranged on the auxiliary ruler base through a connecting block, and the connecting block is fixedly connected with the auxiliary ruler base.
Compared with the prior art, the utility model, the beneficial effect who has is:
the whole structure is simple, the volume is small, the weight is light, and the use is convenient. Minimum volume Φ 25mm 230mm, weight only 0.53 kg; when the main scale extension bar and the measuring head with the maximum size specification are replaced, the volume phi is 25mm and 230mm, and the weight is only 0.61 kg. The operation is carried out by one hand, and time and labor are saved.
The application range is adjustable, and the universality is good. According to the size of the measured dimension, the method can be applied to the measurement of the bearing positioning holes of the H160, GH210 and GH260 series supercharger bearing bodies only by replacing the main scale extension rod and the measuring head.
The measurement precision is high. The measuring precision formed by the main scale and the auxiliary scale is 0.02mm, and the requirement of the measured size of +/-0.1 mm is completely met.
Drawings
Fig. 1 is an exploded assembly view of the present invention;
FIG. 2 is a schematic view of the usage state of the present invention;
FIG. 3 is a schematic structural view of the auxiliary scale base of the present invention;
FIG. 4 is a schematic structural view of the main scale base of the present invention;
wherein: the measuring tool comprises a first screw 1, a plug 2, a second screw 3, a guide block 4, a main scale seat 5, a main scale 6, a secondary scale 7, a gasket 8, a main scale extension bar 9, a secondary scale seat 10, a secondary scale measuring bar 11, a measuring head 12, a lock nut 13, a knurled screw 14, a connecting block 15, a third screw 16, a fourth screw 17, a deep hole measuring device 18, a bearing body 19, a bearing body side face 20, a hole 21, a bearing positioning hole 22, a special mandrel outer cylindrical face 23, an inner hole 24, a sliding rail 25, a platform 26, a first threaded hole 27, a thread 28, a groove 29, a second threaded hole 30 and a third threaded hole 31.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 4, a deep hole measuring device comprises a main scale extension bar 9 and an auxiliary scale measurement bar 11, wherein one end of the auxiliary scale measurement bar 11 is detachably connected with an auxiliary scale base 10, one end of the main scale extension bar 9 is detachably connected with a main scale base 5, the other end of the main scale extension bar 9 is detachably connected with a measuring head 12, the main scale base 5 is slidably connected with the auxiliary scale base 10, a through hole connected with the main scale extension bar 9 is arranged in the auxiliary scale measurement bar 11, the through hole is axially arranged, and the main scale extension bar 9 can axially move along the through hole; an auxiliary ruler 7 is arranged on the auxiliary ruler seat 10, and a main ruler 6 is arranged on the main ruler seat 5.
When in use, the deep hole measuring device 18 is inserted into a hole 21 (phi 14.8) of the bearing body 19, the axis of the hole forms an included angle of 115 degrees with the side surface 20 of the bearing body 19, the end surface of the hole 21 is a measured reference surface, and when in measurement, the lower end surface of the auxiliary ruler measuring rod 11 is in contact with the hole 21; the end face of the main scale extension bar 9 is positioned at the end face of the hole 21 (phi 14.8), the measuring head 12 is inserted into a bearing positioning hole 22 (phi 4.5) of the bearing body 19, the end face of the measuring head 12 is in contact with the outer cylindrical surface 23 of the special mandrel for the middle hole of the bearing body, a measuring value B formed by the scales of the main scale 6 and the auxiliary scale 7 is read, the size C is the known radius value of the special mandrel for the middle hole of the bearing body, the value of the measured value B plus the size C is equal to the value A, and the value A is the size required by design.
One end of the main scale extension bar 9 is detachably connected with the main scale base 5, and the measuring head 12 is detachably connected with the other end of the main scale extension bar 9; the main ruler extension rod 9 and the measuring head 12 can be designed into various dimensions, and respectively correspond to the deep hole dimensions of other supercharger bearing bodies of different types. It is determined whether the sub-scale measuring rod 11 needs to be replaced as well according to actual needs. The sub-scale measuring rod 11 can be used in common when the size change of the series products is small. If there are other products, the size change is large, the sub-scale measuring rod 11 must be replaced.
The scale precision of the surface processing of the auxiliary ruler 7 can be adjusted and designed according to the actual situation, and the preferred precision is 0.02 mm; the scale precision range of the main scale 6 can be adjusted and designed according to actual conditions, and the preferred scale range is 2-11 mm.
Further, the sliding coupling between the main foot 5 and the auxiliary foot 10 can be achieved by a plurality of structures, preferably by the following structure:
the auxiliary ruler seat 10 is a hollow sleeve, the upper end of the hollow sleeve is provided with a notch communicated with the inside, and the notch forms a sliding track 25 connected with the lower end of the main ruler seat 5 in a sliding manner; the lower end of the main ruler seat 5 is provided with a guide block 4, and the guide block 4 is positioned in the hollow sleeve and is connected with the inside (inner hole 24) of the hollow sleeve in a sliding way.
Specifically, the method comprises the following steps: the guide block 4 and the main ruler seat 5 can be integrally formed; of course, the fixing can also be realized by adopting a screw mode: and is fixed in the second threaded hole 30 at the other end of the main scale base 5 by using the second screw 3. The hollow sleeve is the open structure in both ends, can adopt blanking cover 2 to carry out the shutoff at its other end, and blanking cover 2 can be through first screw 1 and hollow sleeve hookup. Of course, the occlusion may not be present.
Further, the main scale 6 is connected with the main scale base 5 in a clamping mode, and a corresponding groove 29 is formed in the main scale base 5. Main scale 6 snaps into recess 29 by an interference fit. Of course, the fixing can be performed by means of screws, bonding and the like.
Further, one end of the auxiliary ruler measuring rod 11 is connected with the auxiliary ruler base 10 through threads, and one end of the main ruler extension rod 9 is connected with the main ruler base 5 through threads. The method specifically comprises the following steps: a thread 28 is designed in an inner hole at one end of the auxiliary ruler base 10, and a corresponding external thread is arranged on the auxiliary ruler measuring rod 11; the main ruler base 5 is provided with a third threaded hole 31, and the outside of the main ruler extension rod 9 is provided with a corresponding external thread.
Further, be equipped with knurling screw 14 on the vice chi seat 10, the one end of knurling screw 14 can pass and vice chi seat 10 and main chi seat 5 offsets and restrict its slip, can be with the relative position of fixed main scale 6 and vice chi 7 for measuring device leaves behind the measuring point, still keeps the measured value unchangeable, the convenient reading.
Further, the auxiliary ruler 7 is arranged on the auxiliary ruler base 10 through a connecting block 15, and the connecting block 15 is fixedly connected with the auxiliary ruler base 10 and the auxiliary ruler 7. The fixed connection can be fixed by adopting modes such as bonding, clamping and the like, preferably adopts threaded connection, and specifically comprises the following steps: a first threaded hole 27 is designed on the side surface of the auxiliary ruler seat 10 for installing the connecting block 15; the sub-rule 7 is fixed to the attachment block 15 by a fourth screw 17, and the attachment block 15 is fixed to the sub-rule base 10 by a third screw 16. When the connection block 15 is provided, the knurled screw 14 may be provided on the connection block 15. In order to ensure the stability of the fixing, a concave platform 26 connected with the connecting block 15 can be arranged on the auxiliary ruler seat 10.
Furthermore, the measuring head 12 and the main scale extension bar 9 can be connected in a threaded manner, and a locking nut 13 can be arranged for adjustment and locking. The end surface of the main ruler extension bar 9 is assembled with the gasket 8 and then screwed into the third threaded hole 31 at one end of the main ruler base 5 through the external thread at the upper end of the main ruler extension bar.
The above description has been made in detail only for the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art, and all such changes are intended to be encompassed by the present invention.
Claims (6)
1. A deep hole measuring device is characterized in that: the auxiliary ruler extension rod comprises a main ruler extension rod (9) and an auxiliary ruler measurement rod (11), wherein one end of the auxiliary ruler measurement rod (11) is detachably connected with an auxiliary ruler seat (10), one end of the main ruler extension rod (9) is detachably connected with a main ruler seat (5), the other end of the main ruler extension rod (9) is detachably connected with a measuring head (12), the main ruler seat (5) is connected with the auxiliary ruler seat (10) in a sliding manner, a through hole connected with the main ruler extension rod (9) is arranged in the auxiliary ruler measurement rod (11), the through hole is axially arranged, and the main ruler extension rod (9) can axially move along the through hole; an auxiliary ruler (7) is arranged on the auxiliary ruler seat (10), and a main ruler (6) is arranged on the main ruler seat (5).
2. A deep hole measuring device according to claim 1, characterized in that: the auxiliary ruler seat (10) is a hollow sleeve, the upper end of the hollow sleeve is provided with a notch communicated with the inside, and the notch forms a sliding track (25) connected with the lower end of the main ruler seat (5) in a sliding manner; the lower end of the main ruler seat (5) is provided with a guide block (4), and the guide block (4) is positioned in the hollow sleeve and is connected with the inside of the hollow sleeve in a sliding manner.
3. A deep hole measuring device according to claim 1, characterized in that: the main scale (6) is connected with the main scale seat (5) in a clamping mode, and a corresponding groove (29) is formed in the main scale seat (5).
4. A deep hole measuring apparatus according to any one of claims 1 to 3, wherein: one end of the auxiliary ruler measuring rod (11) is connected with the auxiliary ruler base (10) through threads, and one end of the main ruler extension rod (9) is connected with the main ruler base (5) through threads.
5. A deep hole measuring device according to claim 1, characterized in that: the auxiliary ruler seat (10) is provided with a knurled screw (14), and one end of the knurled screw (14) can penetrate through the auxiliary ruler seat (10) to be abutted against the main ruler seat (5) to limit sliding of the auxiliary ruler seat.
6. A deep hole measuring device according to claim 1, characterized in that: the auxiliary ruler (7) is arranged on the auxiliary ruler base (10) through a connecting block (15), and the connecting block (15) is fixedly connected with the auxiliary ruler base (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921819186.8U CN210603049U (en) | 2019-10-28 | 2019-10-28 | Deep hole measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921819186.8U CN210603049U (en) | 2019-10-28 | 2019-10-28 | Deep hole measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210603049U true CN210603049U (en) | 2020-05-22 |
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ID=70691892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921819186.8U Active CN210603049U (en) | 2019-10-28 | 2019-10-28 | Deep hole measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210603049U (en) |
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2019
- 2019-10-28 CN CN201921819186.8U patent/CN210603049U/en active Active
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