CN210802315U - Eccentric digital display internal diameter measuring instrument - Google Patents
Eccentric digital display internal diameter measuring instrument Download PDFInfo
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- CN210802315U CN210802315U CN201922319164.1U CN201922319164U CN210802315U CN 210802315 U CN210802315 U CN 210802315U CN 201922319164 U CN201922319164 U CN 201922319164U CN 210802315 U CN210802315 U CN 210802315U
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- connecting pipe
- measuring head
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- eccentric
- internal diameter
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to the field of measuring tools, in particular to an eccentric digital display internal diameter measuring instrument, which comprises a dial indicator, a connecting pipe, a movable measuring head and an adjustable measuring head, wherein a movable shaft is movably arranged in the connecting pipe, one end of the movable shaft extends out of the connecting pipe and is connected with the movable measuring head, a slide block is fixedly sleeved at the other end of the movable shaft, a notch is arranged at the position of the connecting pipe above the slide block, the slide block partially exposes the notch, the dial indicator is horizontally arranged above the middle part of the connecting pipe, and the movable end of the dial indicator faces towards the movable measuring head and is abutted against the slide block; and the adjustable measuring head is arranged at one end of the connecting pipe, which is far away from the movable measuring head. The eccentric digital display internal diameter measuring instrument has the advantages of easy understanding of the principle, strong practicability and suitability for popularization in the field.
Description
Technical Field
The utility model relates to a measure the apparatus field, in particular to eccentric digital display internal diameter measuring instrument.
Background
The form of work piece is various, and some work pieces have a step hole, will use interior diameter measurement appearance when measuring the step hole, and the gauge head size of general interior diameter measurement appearance is great, and under the shallow condition of step hole degree of depth, the gauge head can't contact with the internal diameter in hole, and then just can't measure. Therefore, a new type of inner diameter gauge is needed.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is desirable to provide an eccentric digital display inner diameter gauge.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
the eccentric digital display internal diameter measuring instrument comprises a dial indicator, a connecting pipe, a movable measuring head and an adjustable measuring head, wherein a movable shaft is movably arranged in the connecting pipe, one end of the movable shaft extends out of the connecting pipe and is connected with the movable measuring head, the other end of the movable shaft is fixedly sleeved with a sliding block in a fixed mode, a notch is formed in the position, above the sliding block, of the connecting pipe, the sliding block is partially exposed out of the notch, the dial indicator is horizontally arranged above the middle of the connecting pipe, and the movable end of the dial indicator faces towards the movable measuring head and is abutted to the sliding block; and the adjustable measuring head is arranged at one end of the connecting pipe, which is far away from the movable measuring head.
Furthermore, a spring fixing sleeve is arranged at the end part of the movable shaft in the connecting pipe, the spring fixing sleeve is movably connected with the movable shaft, a first return spring is arranged between the spring fixing sleeve and the sliding block, and the first return spring is sleeved on the movable shaft.
Further, still be provided with push rod installation piece on the takeover, the activity is provided with one on the push rod installation piece and stirs the push rod, stir the one end level of push rod run through behind the push rod installation piece with the slider butt.
Furthermore, a cover body is arranged outside the connecting pipe and used for covering the push rod mounting block and the movable end of the dial indicator.
Furthermore, a bridge protection sleeve is sleeved at one end, close to the movable measuring head, of the connecting pipe, the bridge protection sleeve is movably connected with the connecting pipe, a second return spring is arranged between the inside of the bridge protection sleeve and the connecting pipe, the second return spring is sleeved on the connecting pipe, and a positioning bridge protection is arranged on the bridge protection sleeve.
Furthermore, an adjustable positioning screw is arranged on the positioning protective bridge.
Furthermore, the adjustable measuring head comprises a fixed measuring head, an adjusting screw rod, a locking nut and a locking screw, one end of the adjusting screw rod is located in the connecting pipe and can be screwed in and out of the connecting pipe, the locking nut is sleeved on the exposed adjusting screw rod, the locking screw penetrates through the connecting pipe and then abuts against the adjusting screw rod, and one end of the adjusting screw rod, exposed out of the connecting pipe, is connected with the fixed measuring head.
Furthermore, the fixed measuring head comprises a fixed block and a contact point, the contact point is located at the bottom of the outer side face of the fixed block, and the structure of the movable measuring head is consistent with that of the fixed measuring head.
Furthermore, a dial indicator locking screw is arranged on the dial indicator.
The utility model discloses following beneficial effect has:
the utility model discloses an eccentric digital display internal diameter measurement appearance, the contact of activity gauge head and the skew below of taking over the axis and being located the takeover axis of the contact of fixed gauge head, the size of contact is less, can let the contact with the shallower step downthehole wall of the degree of depth contact like this, and then this appearance can be measured the downthehole internal diameter of step. The eccentric digital display internal diameter measuring instrument has the advantages of easy understanding of the principle, strong practicability and suitability for popularization in the field.
Drawings
Fig. 1 is a front view of the eccentric digital display internal diameter measuring instrument of the present invention;
fig. 2 is a top view of the eccentric digital display internal diameter measuring instrument of the present invention;
fig. 3 is a sectional view showing a use state of the eccentric digital display internal diameter measuring instrument according to the present invention;
fig. 4 is an enlarged view of fig. 3 at a.
Description of the main elements
In the figure: the dial indicator comprises a dial indicator 1, a dial indicator locking screw 11, a connecting pipe 2, a movable shaft 21, a sliding block 22, a spring fixing sleeve 23, a first return spring 24, a movable measuring head 3, an adjustable measuring head 4, a fixed measuring head 41, a fixed block 411, a contact 412, an adjusting screw 42, a locking nut 43, a locking screw 44, a push rod mounting block 5, a toggle push rod 51, a cover body 6, a bridge protection sleeve 7, a second return spring 71, a positioning bridge protection 72 and an adjustable positioning screw 73.
The following detailed description of the invention will be further described in conjunction with the above-identified drawings.
Detailed Description
Referring to fig. 1-4, in a preferred embodiment of the present invention, the eccentric digital display internal diameter measuring instrument includes a dial indicator 1, a connection tube 2, a movable measuring head 3, and an adjustable measuring head 4, wherein a movable shaft 21 is movably disposed in the connection tube 2, one end of the movable shaft 21 extends out of the connection tube 2 and is connected to the movable measuring head 3, a slider 22 is fixedly sleeved on the other end of the movable shaft, a notch is disposed on the connection tube 2 above the slider 22, a portion of the slider 22 exposes the notch, the dial indicator 1 is horizontally mounted above the middle of the connection tube 2, and the movable end of the dial indicator faces the movable measuring head 3 and abuts against the slider 22; and the adjustable measuring head 4 is arranged at one end of the connecting pipe 2 far away from the movable measuring head 3.
In this embodiment, preferably, a spring fixing sleeve 23 is disposed at an end of the connecting tube 2 located at the movable shaft 21, the spring fixing sleeve 23 is movably connected to the movable shaft 21, a first return spring 24 is disposed between the spring fixing sleeve 23 and the sliding block 22, and the first return spring 24 is sleeved on the movable shaft 21; the connecting pipe 2 is also provided with a push rod mounting block 5, the push rod mounting block 5 is movably provided with a toggle push rod 51, and one end of the toggle push rod 51 horizontally penetrates through the push rod mounting block 5 and then abuts against the sliding block 22; a cover body 6 is further arranged outside the connecting pipe 2, and the cover body 6 is used for covering the push rod mounting block 5 and the movable end of the dial indicator 1;
a bridge protection sleeve 7 is sleeved at one end, close to the movable measuring head 3, of the connecting pipe 2, the bridge protection sleeve 7 is movably connected with the connecting pipe 2, a second return spring 71 is arranged between the inside of the bridge protection sleeve 7 and the connecting pipe 2, the second return spring 71 is sleeved on the connecting pipe 2, a positioning bridge protection 72 is arranged on the bridge protection sleeve 7, and an adjustable positioning screw 73 is arranged on the positioning bridge protection 72;
the adjustable measuring head 4 comprises a fixed measuring head 41, an adjusting screw 42, a locking nut 43 and a locking screw 44, one end of the adjusting screw 42 is positioned in the connecting pipe 2 and can be screwed in and out of the connecting pipe 2, the locking nut 43 is sleeved on the exposed adjusting screw 42, the locking screw 44 is abutted to the adjusting screw 42 after penetrating through the connecting pipe 2, and one end of the adjusting screw 42, which is exposed out of the connecting pipe 2, is connected with the fixed measuring head 41; the fixed measuring head 41 comprises a fixed block 411 and a contact 412, the contact 412 is located at the bottom of the outer side face of the fixed block 411, and the structure of the movable measuring head 3 is consistent with that of the fixed measuring head 41.
And a dial indicator locking screw 11 is arranged on the dial indicator 1.
The working principle is as follows: the contact point of the movable measuring head 3, the contact point of the fixed measuring head 41 and the positioning guard bridge 72 are positioned on the same horizontal line and are lower than the axis of the connecting pipe 2, so that an eccentric structure is formed, and the contact points are favorably contacted with the inner wall of a stepped hole with shallow depth. When the eccentric digital display internal diameter measuring instrument is used, zero alignment is firstly carried out, and the zero alignment steps are as follows: taking a standard part, pressing and stirring a push rod 51 to enable a movable measuring head 3 to retract, placing the movable measuring head 3 and a fixed measuring head 41 of the measuring instrument into a hole diameter, loosening and stirring the push rod 51 to enable the movable measuring head 3 to rebound, then enabling a contact of the movable measuring head 3, a positioning guard bridge 72 and a contact of the fixed measuring head 41 to be attached to the inner wall of the hole diameter by adjusting the telescopic amount of an adjustable measuring head 4, enabling the compression amount of the movable measuring head 3 to be 1-2mm, and then enabling a dial indicator 1 to return to zero; the adjustable measuring head 4 can not be adjusted after the zero setting, then the step holes of other workpieces to be measured are measured by the measuring instrument after the zero setting, when the workpieces to be measured are measured, the movable measuring head 3 retracts by pressing the toggle push rod 51, then the movable measuring head 3 and the fixed measuring head 41 are placed into the holes, the movable measuring head 3 rebounds by loosening the toggle push rod 51, the contact of the movable measuring head 3 and the contact of the fixed measuring head 41 are attached to the inner wall, the displacement generated by the movable measuring head 3 can be displayed through the reading of the dial indicator 1, the reading is the error between the workpiece to be measured and the standard component, the size of the standard component is known, and the size of the workpiece to be measured can be obtained through the error value. The movable measuring head 3 and the positioning guard bridge 72 have certain flexibility, so that the measuring instrument can measure the size of a corresponding workpiece within a certain error range; if the bottom surface of the stepped hole is uneven, the measuring instrument can be made to be horizontal by turning the sinking depth of the adjustable positioning screw 73; the adjusting screw 42, the locking nut 43 and the locking screw 44 are matched with each other to adjust the expansion amount of the fixed measuring head 41; the reading of the dial indicator 1 can be locked through the dial indicator locking screw 11 during measurement; the measuring instrument obtains the size of a measured workpiece by adopting a contrast method, the length of the connecting pipe 2 is matched with the size of the measured workpiece, and the contact point of the movable measuring head 3 and the contact point of the fixed measuring head 41 can enable the measuring instrument to measure the inner diameter of a step hole with shallow depth; if the blind hole is measured, the measuring instrument can be used for zeroing the blind hole, then the measuring instrument is used for measuring a standard part, and the size of the blind hole is obtained through the difference value.
The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.
Claims (9)
1. Eccentric digital display internal diameter measurement appearance, its characterized in that: the dial indicator comprises a dial indicator, a connecting pipe, a movable measuring head and an adjustable measuring head, wherein a movable shaft is movably arranged in the connecting pipe, one end of the movable shaft extends out of the connecting pipe and is connected with the movable measuring head, a sliding block is fixedly sleeved at the other end of the movable shaft, a notch is formed in the position, above the sliding block, of the connecting pipe, part of the sliding block is exposed out of the notch, the dial indicator is horizontally arranged above the middle part of the connecting pipe, and the movable end of the dial indicator faces towards the movable measuring head and is abutted against the sliding block; and the adjustable measuring head is arranged at one end of the connecting pipe, which is far away from the movable measuring head.
2. The eccentric digital display internal diameter gauge according to claim 1, wherein: a spring fixing sleeve is arranged at the end part of the movable shaft in the connecting pipe, the spring fixing sleeve is movably connected with the movable shaft, a first return spring is arranged between the spring fixing sleeve and the sliding block, and the first return spring is sleeved on the movable shaft.
3. The eccentric digital display internal diameter gauge according to claim 2, wherein: still be provided with push rod installation piece on the takeover, the activity is provided with one on the push rod installation piece and stirs the push rod, stir the one end level of push rod run through behind the push rod installation piece with the slider butt.
4. The eccentric digital display internal diameter gauge according to claim 3, wherein: and a cover body is also arranged outside the connecting pipe and is used for covering the push rod mounting block and the movable end of the dial indicator.
5. The eccentric digital display internal diameter gauge according to claim 1, wherein: one end of the connecting pipe, which is close to the movable measuring head, is sleeved with a bridge protection sleeve, the bridge protection sleeve is movably connected with the connecting pipe, a second return spring is arranged between the inside of the bridge protection sleeve and the connecting pipe, the second return spring is sleeved on the connecting pipe, and a positioning bridge protection is arranged on the bridge protection sleeve.
6. The eccentric digital display internal diameter gauge according to claim 5, wherein: and the positioning protection bridge is provided with an adjustable positioning screw.
7. The eccentric digital display internal diameter gauge according to claim 1, wherein: the adjustable measuring head comprises a fixed measuring head, an adjusting screw rod, a locking nut and a locking screw, one end of the adjusting screw rod is located in the connecting pipe and can be screwed in and out of the connecting pipe, the locking nut is sleeved on the exposed adjusting screw rod, the locking screw penetrates through the connecting pipe and then abuts against the adjusting screw rod, and one end, exposed by the adjusting screw rod, of the connecting pipe is connected with the fixed measuring head.
8. The eccentric digital display internal diameter gauge according to claim 7, wherein: the fixed measuring head comprises a fixed block and a contact, the contact is located at the bottom of the outer side face of the fixed block, and the structure of the movable measuring head is consistent with that of the fixed measuring head.
9. The eccentric digital display internal diameter gauge according to claim 1, wherein: and a dial indicator locking screw is arranged on the dial indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922319164.1U CN210802315U (en) | 2019-12-23 | 2019-12-23 | Eccentric digital display internal diameter measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922319164.1U CN210802315U (en) | 2019-12-23 | 2019-12-23 | Eccentric digital display internal diameter measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210802315U true CN210802315U (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922319164.1U Active CN210802315U (en) | 2019-12-23 | 2019-12-23 | Eccentric digital display internal diameter measuring instrument |
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| CN (1) | CN210802315U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115808147A (en) * | 2023-02-09 | 2023-03-17 | 南京泰普森自动化设备有限公司 | Part depth measuring device and equipment |
-
2019
- 2019-12-23 CN CN201922319164.1U patent/CN210802315U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115808147A (en) * | 2023-02-09 | 2023-03-17 | 南京泰普森自动化设备有限公司 | Part depth measuring device and equipment |
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