CN218495994U - Inner hole precision measuring device - Google Patents
Inner hole precision measuring device Download PDFInfo
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- CN218495994U CN218495994U CN202222763768.7U CN202222763768U CN218495994U CN 218495994 U CN218495994 U CN 218495994U CN 202222763768 U CN202222763768 U CN 202222763768U CN 218495994 U CN218495994 U CN 218495994U
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Abstract
The utility model belongs to the technical field of hole part inner diameter measuring equipment, and relates to an inner hole precision measuring device, which comprises an installation shaft, wherein a transmission shaft is arranged in the inner hole of the installation shaft in a matching way, the axial inner end of the transmission shaft is fixedly connected with a radial control assembly, the inclined plane of the radial control assembly is supported and provided with a plurality of groups of measuring slide block assemblies, and each group of measuring slide block assemblies are respectively arranged in corresponding radial guide holes on the installation shaft in a matching way; the axial outer end of transmission axle is connected with reading adjusting part, and reading adjusting part and installation axle fixed connection, reading adjusting part includes the control shaft, and threaded connection measurement control swivel nut on the control shaft, measurement control swivel nut fit in be provided with can rotate the scale ring of adjusting, be equipped with the length scale of arranging along length direction on the control shaft, be equipped with round differential scale on the scale ring, the fixed swivel nut apron of axial outer end of measurement control swivel nut, the circumference surface of control shaft is located to the barrel body cover of swivel nut apron, and measurement control swivel nut and transmission axle interlock are measured, and measurement control swivel nut can drive the transmission axle and carry out axial reciprocating motion.
Description
Technical Field
The utility model belongs to the technical field of hole part internal diameter measuring equipment, a hole precision measurement device is related to.
Background
The hole parts are important parts in mechanical parts and widely used in various industries, and the requirement on the matching precision of inner holes of many parts is high, so that the hole parts can be perfectly matched with other precision parts. The common inner hole measurement adopts a direct measurement method, two-point or three-point positioning, and under the condition that the precision requirement is not too high, a vernier caliper is adopted for measurement.
Disclosure of Invention
The utility model provides an above-mentioned problem provides a hole precision measurement device, and this measuring device can realize carrying out reliable clamping location to the hole of hole class part to carry out the precision measurement to the hole size.
According to the technical scheme of the utility model: the utility model provides an inner hole precision measurement device which characterized in that: the device comprises an installation shaft, wherein a transmission shaft is arranged in an inner hole of the installation shaft in a matched manner, the axial inner end of the transmission shaft is fixedly connected with a radial control assembly, a plurality of groups of measuring slide block assemblies are arranged on an inclined plane support of the radial control assembly in a supported manner, and each group of measuring slide block assemblies are respectively arranged in corresponding radial guide holes on the installation shaft in a matched manner;
the axial outer end of the transmission shaft is connected with the reading adjusting assembly, the reading adjusting assembly is fixedly connected with the mounting shaft and comprises a control shaft, the control shaft is in threaded connection with a measurement control threaded sleeve, a scale ring capable of being rotationally adjusted is arranged on the measurement control threaded sleeve in a matching mode, length scales arranged along the length direction are arranged on the control shaft, a circle of differential scales are arranged on the scale ring, a threaded sleeve cover plate is fixed to the axial outer end of the measurement control threaded sleeve, a cylinder body of the threaded sleeve cover plate is sleeved on the circumferential surface of the control shaft, the measurement control threaded sleeve is linked with the transmission shaft, and the measurement control threaded sleeve can drive the transmission shaft to axially reciprocate;
the radial control assembly comprises a radial control block, the radial control block is fixedly connected with the axial inner end of the transmission shaft, a guide inclined plane of the radial control block fixes the sliding groove block, and the measuring sliding block assembly extends into a radial guide hole of the mounting shaft after being guided by the sliding groove block.
As a further improvement, the radial bellying location of measurement control swivel nut is passed through to the axial outer end of scale ring, the radial bellying top surface of measurement control swivel nut stacks the spring leaf in proper order and the switch that returns to zero, wherein the axial outer end of spring leaf is through the radial bellying fixed connection of a screw and measurement control swivel nut, the axial inner of spring leaf is through another screw and the bottom surface fixed connection of the switch that returns to zero, the axial inner of the switch that returns to zero is equipped with radial extension's switch fender portion, the radial inner of switch fender portion cooperatees with the straight line annular knurl on scale ring surface.
As a further improvement, the control shaft is provided with a waist-shaped hole, a ring groove is formed between the screw sleeve cover plate and the measurement control shaft sleeve, the ring groove is internally matched with a first bearing, the waist-shaped hole is internally matched with a second bearing, and the first bearing is fixedly connected with the second bearing and the transmission shaft through a screw.
As a further improvement of the utility model, a placing flange plate is arranged between the reading adjusting assembly and the installation shaft, the placing flange plate is fixedly connected with the axial end face of the installation shaft, and the reading adjusting assembly is arranged on the axial outer end face of the placing flange plate;
the axial outer end face of the holding flange plate is fixedly provided with a handle, and the other axial side face of the holding flange plate is provided with a shock pad in an attaching mode.
As a further improvement, the measuring slide block assembly comprises a slide block seat and an adjusting slide block which is connected on the slide block seat and can adjust the position relative to the slide block seat, the slide block seat is rotated to be provided with a third bearing, and the third bearing is supported on the guide inclined plane of the radial control block.
As a further improvement of the utility model, adjusting block connects on the take-up housing through first adjusting screw, second adjusting screw.
As a further improvement, the axial end part fixed connection back shroud of installation axle sets up compression spring, the axial outer end fixed front shroud of control shaft between back shroud and the radial control piece.
As a further improvement of the utility model, the hole site is reserved in the centre of rotation setting of radial control piece.
The technical effects of the utility model reside in that: the utility model discloses the product is rational in infrastructure ingenious, at the during operation, can realize carrying out high-efficient quick clamping location to hole type part to can carry out accurate measurement to the hole size of hole type part.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a left side view of fig. 1.
Fig. 4 is a schematic structural diagram of the middle radial control assembly of the present invention.
Fig. 5 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 4.
FIG. 6 is a front view of the measurement slide assembly.
Fig. 7 is a left side view of fig. 6.
Fig. 8 is a sectional view taken along line B-B of fig. 6.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
In fig. 1 to 8, the device comprises a rear cover plate 1, a radial control assembly 2, a mounting shaft 3, a transmission shaft 4, a placing flange plate 5, a scale ring 6, a return-to-zero switch 7, a spring piece 8, a measurement control thread sleeve 9, a thread sleeve cover plate 10, a control shaft 11, a front cover plate 12, a first bearing 13, a second bearing 14, a handle 15, a sliding groove block 16, a measurement slider assembly 17, a radial control block 18, a slider seat 19, an adjustment slider 20, a first adjustment screw 21, a second adjustment screw 22, a third bearing 23 and the like.
As shown in fig. 1 to 8, the utility model relates to an inner hole precision measurement device, be used for carrying out the precision measurement to the hole diameter of hole class part, the technical scheme who realizes above-mentioned purpose includes an installation axle 3, the hole cooperation of installation axle 3 is provided with transmission shaft 4 that can carry out axial displacement, inner fixed connection radial control subassembly 2 of transmission shaft 4, the cooperation sets up a plurality of measuring slider subassembly 17 on the inclined plane of support of radial control subassembly 2, the upper portion of measuring slider subassembly 17 stretches into in the radial hole on installation axle 3 surface, and can realize radial concertina movement under the effect of radial control subassembly 2, in the course of the work, when measuring slider subassembly 17 and stretching out in the radial guiding hole of installation axle 3, realize the hole clamping location to hole class part, and can realize follow-up reading operation; the fixed reading adjusting part in axial outer end of installation axle 3 can drive transmission axle 4 through adjusting reading adjusting part and carry out axial reciprocating motion.
In order to realize the axial reciprocating movement of the transmission shaft 4, the reading adjusting assembly comprises a control shaft 11, a measurement control threaded sleeve 9 is connected to the control shaft 11 in a threaded manner, a threaded sleeve cover plate 10 is fixedly connected to the axial outer end of the measurement control threaded sleeve 9, an annular groove is formed between the threaded sleeve cover plate 10 and the measurement control threaded sleeve 9, the transmission shaft 4 extends into an inner hole of the control shaft 11, a plurality of waist-shaped holes extending along the axial direction are formed in the control shaft 11, a linkage assembly is fixed to the control shaft 4, the upper portion of the linkage assembly extends into the annular groove between the measurement control threaded sleeve 9 and the threaded sleeve cover plate 10, the linkage between the measurement control threaded sleeve 9 and the transmission shaft 4 is realized, and therefore when the measurement control threaded sleeve 9 axially moves relative to the control shaft 11, the transmission shaft 4 can be driven to synchronously axially move.
In concrete production practice, the linkage subassembly can have multiple setting mode to can realize measuring the linkage of control swivel nut 9 and transmission shaft 4 as the standard, the linkage subassembly includes first bearing 13, second bearing 14 and a screw in this application, this screw with first bearing 13, second bearing 14 fixed connection, and this screw lower part and transmission shaft 4 fixed connection, first bearing 13 is arranged in the annular groove between measurement control swivel nut 9 and swivel nut apron 10, the cooperation of second bearing 14 sets up in the waist type hole of control shaft 11. The outer race of the second bearing 14 is supported in the kidney-shaped hole of the control shaft 11, and the second bearing 14 can move in the kidney-shaped hole smoothly and reliably in the longitudinal direction.
Furthermore, a scale ring 6 capable of being adjusted in a rotating mode is arranged on the measurement control screw sleeve 9, a circle of scales are arranged on the circumferential surface of the scale ring 6, and scales arranged along the length direction are arranged on the outer surface of the control shaft 11; for reading purposes. The axially outer end of the scale ring 6 abuts against an annular projection of the measurement control thread insert 9. In order to facilitate the zero calibration operation of the scale ring 6, the radial outer end of the annular protruding portion of the measurement control screw sleeve 9 is connected with the spring piece 8 through a screw, the other end of the spring piece 8 is fixedly connected with the zero reset switch 7 through another screw, a through hole is formed in the zero reset switch 7 corresponding to the screw connection position of the spring piece 8 and the measurement control screw sleeve 9, the inner diameter of the through hole of the measurement control screw sleeve 9 is larger than the diameter of the head of the corresponding screw, so that the zero reset switch 7 can rotate at the connection position of the spring piece 8 and the measurement control screw sleeve 9, a radially extending switch blocking portion is arranged at the inner end of the zero reset switch 7, and in a natural state, the switch blocking portion is tightly pressed on the knurled position on the surface of the scale ring 6, so that the limit of the scale ring 6 is realized, and the rotation of the scale ring 6 after zero calibration is avoided, so that a reading error is caused. In the using process, the reset switch 7 unlocks and releases the scale ring 6 by pressing the axial outer end of the reset switch 7.
It will be appreciated that to achieve sealing dust-proof of the mounting shaft 3, the rear cover plate 1 is sealingly connected at the axially inner end of the mounting shaft 3 and the front cover plate 12 is sealingly connected at the axially outer end of the reading adjustment assembly. Meanwhile, in order to effectively save materials, the transmission shaft 4 is of a hollow structure, and meanwhile, a plurality of holes are uniformly distributed on the circumferential surface of the transmission shaft, so that materials are saved, and the weight of the transmission shaft 4 can be effectively reduced.
In specific practice, in order to reliably and axially position the hole parts, a placing flange plate 5 is fixedly arranged between the installation shaft 3 and the reading adjusting assembly, one side of the placing flange plate 5 is fixedly connected with the installation shaft 3, the other side of the placing flange plate 5 is fixedly connected with the control shaft 11, and meanwhile, a damping pad is arranged on the surface of one side, corresponding to the radial control assembly 2, of the placing flange plate 5, so that the end faces of the hole parts are reliably limited. The handle 15 is arranged on the placing flange plate 5, so that the equipment is convenient to operate.
As shown in fig. 4 to 8, the radial control component 2 of the present invention includes a radial control block 18, and the lower portion of the measuring slide block component 17 is supported on a guiding inclined plane of the radial control block 18. The utility model discloses radial control block 18's direction inclined plane equipartition sets up slider seat 19 in the product, every slider seat 19 cooperates respectively and sets up an adjusting block 20, adjusting block 20 is through a first adjusting screw 21, two second adjusting screw 22 are connected with slider seat 19, through adjusting first adjusting screw 21, second adjusting screw 22 can realize adjusting slider seat 19 and adjusting block 20's interval, in order to realize the hole class part of different specifications, it sets up outer screw thread bearing 23 to rotate on slider seat 19, outer screw thread bearing 23 supports in radial control block 18's direction inclined plane, and can roll on radial control block 18's direction inclined plane, the operation is steady, the resistance is little, long service life. In a specific production practice, a hollow hole is formed in the rotation center of the radial control block 18, so that in the use process, corresponding accessories, such as optical and electric sensor components, can be installed according to specific use requirements, and the requirement for weight reduction can be met.
As shown in fig. 1 and 5, the inclination of the guiding inclined plane of the radial control block 18 in the present invention is 45 degrees, so that the axial movement of the transmission shaft 4 and the radial movement of the measuring slide block assembly 17 can be one to one, for example, the axial movement of the transmission shaft 4 is 1 mm, the radial movement of the measuring slide block assembly 17 is 1 mm, and the inner diameter of the workpiece to be measured is increased by two mm; the slope of the guide ramps may also be at other angles as desired, with the ratio of axial movement to radial movement being increased or decreased accordingly.
The utility model discloses the product is rational in infrastructure ingenious, at the during operation, can realize carrying out high-efficient quick clamping location to hole type part to can carry out accurate measurement to the hole size of hole type part.
Claims (8)
1. The utility model provides an inner hole precision measurement device which characterized in that: the device comprises a mounting shaft (3), wherein a transfer shaft (4) is arranged in an inner hole of the mounting shaft (3) in a matching manner, the axial inner end of the transfer shaft (4) is fixedly connected with a radial control assembly (2), a plurality of groups of measuring slide block assemblies (17) are supported on the inclined plane of the radial control assembly (2), and each group of measuring slide block assemblies (17) are respectively arranged in corresponding radial guide holes in the mounting shaft (3) in a matching manner;
the axial outer end of the transmission shaft (4) is connected with a reading adjusting assembly, the reading adjusting assembly is fixedly connected with the installation shaft (3), the reading adjusting assembly comprises a control shaft (11), the control shaft (11) is in threaded connection with a measurement control threaded sleeve (9), a scale ring (6) capable of being adjusted in a rotating mode is arranged on the measurement control threaded sleeve (9) in a matching mode, length scales arranged along the length direction are arranged on the control shaft (11), a circle of differential scales are arranged on the scale ring (6), a threaded sleeve cover plate (10) is fixed to the axial outer end of the measurement control threaded sleeve (9), a cylinder body portion of the threaded sleeve cover plate (10) is sleeved on the circumferential surface of the control shaft (11), the measurement control threaded sleeve (9) is connected with the transmission shaft (4), and the measurement control threaded sleeve (9) can drive the transmission shaft (4) to move axially in a reciprocating mode;
the radial control assembly (2) comprises a radial control block (18), the radial control block (18) is fixedly connected with the axial inner end of the transmission shaft (4), a guide inclined plane of the radial control block (18) is used for fixing a sliding groove block (16), and a measuring sliding block assembly (17) extends into a radial guide hole of the mounting shaft (3) after being guided by the sliding groove block (16).
2. The precision measuring device for the inner hole of claim 1, wherein: the axial outer end of scale ring (6) is through the radial bulge location of measurement control swivel nut (9), the radial bulge top surface of measurement control swivel nut (9) stacks spring leaf (8) and zero switch (7) in proper order, wherein the axial outer end of spring leaf (8) is through the radial bulge fixed connection of a screw with measurement control swivel nut (9), the axial inner end of spring leaf (8) is through the bottom surface fixed connection of another screw with zero switch (7), the axial inner of zero switch (7) is equipped with radial extension's switch fender portion, the radial inner of switch fender portion cooperatees with the straight line annular knurl on scale ring (6) surface.
3. The precision measuring device for the inner hole of claim 1, wherein: the control shaft (11) is provided with a waist-shaped hole, an annular groove is formed between the threaded sleeve cover plate (10) and the measurement control threaded sleeve (9), a first bearing (13) is arranged in the annular groove in a matched mode, a second bearing (14) is arranged in the waist-shaped hole in a matched mode, and the first bearing (13), the second bearing (14) and the transmission shaft (4) are fixedly connected through a screw.
4. The precision measuring device for the inner hole of claim 1, wherein: a placing flange plate (5) is arranged between the reading adjusting assembly and the mounting shaft (3), the placing flange plate (5) is fixedly connected with the axial end face of the mounting shaft (3), and the reading adjusting assembly is mounted on the axial outer end face of the placing flange plate (5);
the handle (15) is fixedly arranged on the outer axial end face of the placing flange plate (5), and the damping pad is attached to the other axial side surface of the placing flange plate (5).
5. The precision measuring device for the inner hole of claim 1, wherein: the measuring slide block assembly (17) comprises a slide block seat (19) and an adjusting slide block (20) which is connected to the slide block seat (19) and can adjust the position relative to the slide block seat (19), a third bearing (23) is arranged on the slide block seat (19) in a rotating mode, and the third bearing (23) is supported on a guide inclined plane of a radial control block (18).
6. The precision measuring device for the inner hole of claim 5, wherein: the adjusting slide block (20) is connected to the slide block seat (19) through a first adjusting screw (21) and a second adjusting screw (22).
7. The precision measuring device for the inner hole of claim 1, wherein: the axial end part of the installation shaft (3) is fixedly connected with a rear cover plate (1), a compression spring is arranged between the rear cover plate (1) and the radial control block (18), and a front cover plate (12) is fixed at the axial outer end of the control shaft (11).
8. The precision measuring device for the inner hole of claim 1, wherein: and a reserved hole position is arranged at the rotation center of the radial control block (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222763768.7U CN218495994U (en) | 2022-10-19 | 2022-10-19 | Inner hole precision measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222763768.7U CN218495994U (en) | 2022-10-19 | 2022-10-19 | Inner hole precision measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218495994U true CN218495994U (en) | 2023-02-17 |
Family
ID=85195367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222763768.7U Active CN218495994U (en) | 2022-10-19 | 2022-10-19 | Inner hole precision measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218495994U (en) |
-
2022
- 2022-10-19 CN CN202222763768.7U patent/CN218495994U/en active Active
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