CN210220916U - High-precision outer diameter measuring instrument - Google Patents
High-precision outer diameter measuring instrument Download PDFInfo
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- CN210220916U CN210220916U CN201921425803.6U CN201921425803U CN210220916U CN 210220916 U CN210220916 U CN 210220916U CN 201921425803 U CN201921425803 U CN 201921425803U CN 210220916 U CN210220916 U CN 210220916U
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Abstract
The utility model relates to a high accuracy external diameter measuring apparatu has solved when current external diameter measuring apparatu uses and need calculate the problem that reachs the error value and make mistakes easily. The positioning device comprises a base, and a fixing block and a positioning block which are respectively arranged at two ends of the base, wherein the positioning block is connected to the base in a sliding manner. Be provided with the stationary blade on the fixed block, the slide bar is worn to be equipped with in the lateral wall slip of locating piece, and the one end that the locating piece was kept away from to the slide bar is provided with the installation piece, and the cover is equipped with pressure spring on the slide bar, is provided with the locating piece on the installation piece, and the locating piece is provided with the meter that changes along with the slide bar translation in one side back to the fixed block. Through adjusting that the distance between spacer and the stationary blade is unanimous with the standard size of the part that awaits measuring, after the part is put into between spacer and the stationary blade, the spacer can move to the direction of keeping away from the stationary blade, and pressure spring is compressed, and the pointer of measuring gauge takes place to rotate, and the reading of measuring gauge this moment is the error value of part, can directly judge the error value of part, avoids calculating to make mistakes.
Description
Technical Field
The utility model belongs to the technical field of the technique of measuring instrument and specifically relates to a high accuracy external diameter measuring apparatu is related to.
Background
Along with the development and progress of industry, the requirement of industrial production on the precision of hardware parts is higher and higher, when shaft parts, pipe parts and pin parts are produced, in order to ensure good matching among the parts, the requirement of general diameters is more precise, and in the range of realizing normal operation of the parts, a small error is allowed to exist, but the error cannot be overlarge, so that the problem of matching among the parts is prevented.
In order to avoid the problem that the parts cannot be matched, the parts are generally required to be measured after being produced, the sizes of the parts are ensured to be within a usable range, and products with unqualified sizes are subjected to rework treatment, and the measurement is generally carried out by an outer diameter measuring instrument. The outer diameter measuring instrument mainly comprises a base, a fixing block, a positioning block and a measuring meter, wherein the fixing block and the positioning block are arranged on the base, the measuring meter is arranged on the base, the positioning block is slidably arranged on the positioning block, a part is placed between the fixing block and the positioning block, the positioning block moves horizontally, according to the moving distance of the positioning block, a pointer of the measuring meter can rotate, and the diameter of the part is determined according to the reading.
The existing outer diameter measuring instrument generally displays the actual reading of the diameter of the part, an operator needs to subtract the data of the standard diameter to obtain an error value, and the calculation error may occur during the long-time measurement, so that the unqualified part flows into the market.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high accuracy external diameter measuring apparatu, its advantage lies in: the error value can be directly read out according to the data on the measuring meter, and whether the part is qualified or not is convenient to confirm.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
a high-precision outer diameter measuring instrument comprises a base, wherein one end of the base is provided with a fixed block, the other end of the base is provided with a positioning block, the top of the fixed block is horizontally provided with a fixed plate, one side of the positioning block, which faces the fixed block, is slidably provided with a slide rod in a penetrating manner, one end, which is close to the fixed block, of the slide rod is fixedly provided with an installation block, the slide rod is sleeved with a pressure spring, the installation block is horizontally provided with a positioning plate, the fixed plate and the positioning plate are positioned at the same horizontal height, one side, which is back to the fixed block, of the positioning block is provided with a measuring meter which changes along with the translation of the slide rod, the base is provided with a chute, the bottom of the positioning block is provided with a sliding block, the sliding block is slidably embedded in, the lug is embedded in the sliding groove in a sliding manner.
By adopting the technical scheme, when measuring the part, the locating piece slides, the distance between the adjusting locating piece and the fixed piece is consistent with the standard size of the part to be measured, the pressure spring is in an unstressed state, the pointer of the adjusting measuring meter is positioned at the zero scale mark, the part to be measured is placed on the bearing block to enable the part to be positioned between the locating piece and the fixed piece, when the part is in the standard size, the locating piece is kept still, the pointer of the measuring meter is positioned at the zero scale mark, when the size of the part is larger than the standard size, the locating piece can move towards the direction close to the locating piece, the pressure spring is compressed at the moment, the pointer of the measuring meter rotates, the reading of the measuring meter is the error value of the part at the moment, the error value of the part can be directly judged conveniently, and calculation errors.
The sliding setting of locating piece is convenient for adjust the initial value of distance between spacer and the stationary blade according to the part of different grade type, and the sliding setting of bearing piece is convenient for adjust according to the size of part, is convenient for support the part that awaits measuring.
The utility model discloses further set up to: a fixing pin penetrates through the side wall of the base, the fixing pin penetrates through the sliding block, and a fixing nut is connected to the fixing pin through threads.
Through adopting above-mentioned technical scheme, the fixed pin is used for fixing the locating piece, after the position of adjusting the locating piece, fixes the locating piece with fixation nut screws, makes the locating piece keep fixed in the measurement process, and the locating piece takes place to slide and leads to the measured data to appear the deviation when preventing to measure.
The utility model discloses further set up to: the locating slot is formed in the locating piece, the locating column is arranged on the mounting block and penetrates through the locating slot, and a locating nut is connected to the locating column through threads.
Through adopting above-mentioned technical scheme, the setting up of constant head tank can finely tune the distance between spacer and the stationary blade, conveniently adjusts according to the size of part, loosens set nut when adjusting, removes the spacer to setting for the distance, then screws set nut and fixes the spacer.
The utility model discloses further set up to: the mounting block is provided with a mounting groove, the positioning piece is slidably embedded in the mounting groove, and the positioning column is located in the mounting groove.
Through adopting above-mentioned technical scheme, the mounting groove can carry on spacingly to the spacer, prevents that the in-process spacer of screwing at set nut from taking place to rotate, makes the side of spacer and the side of stationary blade keep parallel, guarantees the measuring precision, avoids producing the error.
The utility model discloses further set up to: one side of the bearing block is provided with a stop block, and the length direction of the stop block is parallel to the sliding groove.
Through adopting above-mentioned technical scheme, the setting of dog can carry on spacingly to the part, when measuring, with the lateral wall butt of part in the lateral wall of dog, makes the part keep vertical, is convenient for measure the part, guarantees measuring precision.
The utility model discloses further set up to: the cross section of the lug is rectangular.
Through adopting above-mentioned technical scheme, the lug sets up to the rectangle can carry on spacingly to the bearing piece, and the bearing piece atress takes place rotatoryly when preventing part butt in the dog, makes the dog can fix the part steadily, is convenient for measure.
The utility model discloses further set up to: the edges of the positioning sheet and the fixing sheet are rounded.
Through adopting above-mentioned technical scheme, the fillet processing at locating piece and stationary blade edge can protect the part, prevents that the sharp-pointed department at locating piece and stationary blade edge from with part surface scratch.
To sum up, the utility model discloses a beneficial technological effect does:
1. the sliding arrangement of the positioning block facilitates the adjustment of the initial value of the distance between the positioning piece and the fixing piece according to different types of parts, the reading of the rotating direction of the pointer of the measuring gauge during measurement is the error value of the part, the error value of the part can be conveniently and directly judged, and calculation errors are avoided;
2. the positioning groove can be used for finely adjusting the distance between the positioning sheet and the fixing sheet, so that the adjustment can be conveniently carried out according to the size of a part, and the use is convenient;
3. the setting of dog can carry on spacingly to the part, with the lateral wall butt of part in the lateral wall of dog when measuring, makes the part keep vertical, is convenient for measure the part, guarantees measuring precision.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partially enlarged schematic view of a portion a in fig. 1.
Fig. 3 is a schematic structural view of the bearing block.
In the figure, 1, a base; 11. a chute; 2. a fixed block; 21. a fixing sheet; 3. positioning blocks; 31. mounting blocks; 311. a positioning column; 312. positioning a nut; 313. mounting grooves; 32. a slide bar; 33. a pressure spring; 34. positioning plates; 341. positioning a groove; 35. a slider; 4. a bearing block; 41. a bump; 42. a stopper; 5. a fixing pin; 51. fixing a nut; 6. and (6) measuring the meter.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 3, for the utility model discloses a high-precision external diameter measuring instrument, including base 1, set up the lake grass of a rectangle on the base 1, there is a fixed block 2 one end of spout 11 through bolt fixed mounting, and there is a locating piece 3 the other end slidable mounting of spout 11. The bottom welding of locating piece 3 has a slider 35, through locating slider 35 sliding fit in spout 11, makes locating piece 3 sliding connection in base 1. Still install a columniform bearing piece 4 on the base 1, bearing piece 4 is located between fixed block 2 and the locating piece 3, and the lower surface welding of bearing piece 4 has a lug 41, and lug 41 slides to inlay and locates in spout 11.
Referring to fig. 1 and 2, a rectangular fixing piece 21 is horizontally and fixedly installed at the top of the fixing block 2 by a bolt, and the fixing piece 21 extends in a direction close to the positioning block 3. A sliding rod 32 penetrates through the side wall of the positioning block 3 in a sliding mode, an installation block 31 with an L-shaped section is fixedly arranged at one end, close to the fixing block 2, of the sliding rod 32, a pressure spring 33 is sleeved on the sliding rod 32, and the pressure spring 33 is located between the positioning block 3 and the installation block 31. One side of the positioning block 3, which is back to the fixed block 2, is provided with a measuring meter 6 through a bolt, and a pointer of the measuring meter 6 can change along with the sliding of the sliding rod 32.
The mounting block 31 is provided with a rectangular mounting groove 313, a rectangular positioning piece 34 is embedded in the mounting groove 313 in a sliding manner, and the positioning piece 34 and the fixing piece 21 are located at the same horizontal height. A rectangular positioning groove 341 is formed in the middle of the positioning piece 34, a cylindrical positioning column 311 is vertically welded on one side of the mounting block 31 close to the fixing block 2, the positioning column 311 penetrates through the positioning groove 341 and can slide relative to the positioning piece 34 in the horizontal direction, and a positioning nut 312 is connected to the positioning column 311 in a threaded manner.
During measurement, the positioning block 3 is slid, the initial value of the distance between the positioning piece 34 and the fixing piece 21 is adjusted according to different types of parts, the distance between the positioning piece 34 and the fixing piece 21 is adjusted to be consistent with the standard size of the part to be measured, the pressure spring 33 is in an unstressed state at the moment, and the pointer of the measuring meter 6 is adjusted to be located at a zero scale mark. Then put the part that awaits measuring on bearing piece 4 and make the part be located between spacer 34 and stationary blade 21, the slip setting of bearing piece 4 is convenient for adjust according to the size of part, is convenient for support the part that awaits measuring.
When the part is in a standard size, the positioning sheet 34 is kept still, and the pointer of the measuring gauge 6 is positioned at a zero scale mark; when the size of the part is larger than the standard size, the positioning piece 34 moves towards the direction close to the positioning block 3, the pressure spring 33 is compressed at the moment, the pointer of the measuring gauge 6 rotates, the reading of the measuring gauge 6 is the error value of the part at the moment, the error value of the part can be directly judged, and calculation errors are avoided.
The edges of the positioning piece 34 and the fixing piece 21 are all rounded to protect the parts, and the sharp edges of the positioning piece 3 and the fixing piece 21 are prevented from scratching the surfaces of the parts.
The setting of constant head tank 341 can finely tune the distance between spacer 34 and the stationary blade 21, conveniently adjusts according to the size of part, loosens set nut 312 when adjusting, removes spacer 34 to setting for the distance, then screws set nut 312 and fixes spacer 34.
A rectangular mounting groove 313 is formed in the mounting block 31, the positioning piece 34 is embedded in the mounting groove 313 in a sliding mode, and the bottom end of the positioning column 311 is located in the mounting groove 313. When screwing set nut 312 and fixing the spacer 34, mounting groove 313 can carry on spacingly to spacer 34, prevents that spacer 34 from taking place the rotation, makes spacer 34 and stationary blade 21 both sides limit that is close to mutually keep parallel, guarantees the measuring precision, avoids producing the error.
A fixing pin 5 for fixing the positioning block 3 is inserted through the side wall of the base 1, the fixing pin 5 penetrates through the slider 35, and a fixing nut 51 is connected to one end of the fixing pin 5 through a thread. After the position of the positioning block 3 is adjusted, the fixing nut 51 is screwed to fix the positioning block 3, so that the positioning block 3 is kept fixed in the measuring process, and the measuring data is prevented from deviating due to the fact that the positioning block 3 slides in the measuring process.
The edge of bearing block 4 one side is vertical upwards protruding to form a dog 42, and the length direction of dog 42 parallels with spout 11, when measuring, with the lateral wall butt of part in the lateral wall of dog 42, dog 42 can carry out spacing messenger's part to the part and keep vertical, is convenient for measure the part, has improved measuring precision.
The cross-section of the lug 41 at the bottom of the bearing block 4 is rectangular, so that the bearing block 4 is prevented from being stressed to rotate when a part abuts against the stop block 42, the bearing block 4 can be limited, the stop block 42 can be used for stably fixing the part, and the measurement is convenient.
The implementation principle of the embodiment is as follows: by connecting the positioning block 3 to the base 1 in a sliding manner, during measurement, the sliding positioning block 3 adjusts the distance between the positioning piece 34 and the fixing piece 21 to be consistent with the standard size of the part to be measured, at the moment, the pressure spring 33 is not stressed, the pointer of the measuring meter 6 is positioned at the zero scale mark, and then the part to be measured is placed between the positioning piece 34 and the fixing piece 21; when the part is in the standard size, the positioning piece 34 is kept still, the pointer of the measuring gauge 6 is located at the zero scale mark, when the size of the part is larger than the standard size, the positioning piece 34 moves towards the direction far away from the fixing piece 21, the pressure spring 33 is compressed at the moment, the pointer of the measuring gauge 6 rotates, the reading of the measuring gauge 6 is the error value of the part at the moment, the error value of the part can be directly judged, and calculation errors are avoided.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. The utility model provides a high accuracy external diameter measuring apparatu, includes base (1), the one end of base (1) is provided with fixed block (2), the other end of base (1) is provided with locating piece (3), its characterized in that: the measuring device is characterized in that a fixing piece (21) is horizontally arranged at the top of the fixing block (2), a sliding rod (32) penetrates through one side, facing the fixing block (2), of the positioning block (3) in a sliding mode, an installation block (31) is fixedly arranged at one end, close to the fixing block (2), of the sliding rod (32), a pressure spring (33) is sleeved on the sliding rod (32), a positioning piece (34) is horizontally arranged on the installation block (31), the fixing piece (21) and the positioning piece (34) are located at the same horizontal height, a measuring meter (6) which changes along with the translation of the sliding rod (32) is arranged on one side, opposite to the fixing block (2), of the positioning block (3), a sliding groove (11) is formed in the base (1), a sliding block (35) is arranged at the bottom of the positioning block (3), and the sliding block (35) is, the bearing block (4) is arranged between the fixed block (2) and the positioning block (3), a convex block (41) is arranged on the lower portion of the bearing block (4), and the convex block (41) is embedded in the sliding groove (11) in a sliding mode.
2. A high-precision outside diameter measuring instrument according to claim 1, wherein: a fixing pin (5) penetrates through the side wall of the base (1), the fixing pin (5) penetrates through the sliding block (35), and a fixing nut (51) is connected to the fixing pin (5) in a threaded mode.
3. A high-precision outside diameter measuring instrument according to claim 1, wherein: the positioning piece (34) is provided with a positioning groove (341), the mounting block (31) is provided with a positioning column (311), the positioning column (311) penetrates through the positioning groove (341), and the positioning column (311) is connected with a positioning nut (312) in a threaded manner.
4. A high-precision outside diameter measuring instrument according to claim 3, wherein: the mounting block (31) is provided with a mounting groove (313), the positioning piece (34) is embedded in the mounting groove (313) in a sliding mode, and the positioning column (311) is located in the mounting groove (313).
5. A high-precision outside diameter measuring instrument according to claim 1, wherein: one side of the bearing block (4) is provided with a stop block (42), and the length direction of the stop block (42) is parallel to the sliding groove (11).
6. The high-precision outer diameter measuring instrument according to claim 5, wherein: the cross section of the lug (41) is rectangular.
7. A high-precision outside diameter measuring instrument according to claim 1, wherein: the edges of the positioning sheet (34) and the fixing sheet (21) are rounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921425803.6U CN210220916U (en) | 2019-08-29 | 2019-08-29 | High-precision outer diameter measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921425803.6U CN210220916U (en) | 2019-08-29 | 2019-08-29 | High-precision outer diameter measuring instrument |
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| Publication Number | Publication Date |
|---|---|
| CN210220916U true CN210220916U (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921425803.6U Active CN210220916U (en) | 2019-08-29 | 2019-08-29 | High-precision outer diameter measuring instrument |
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| Country | Link |
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| CN (1) | CN210220916U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483712A (en) * | 2021-07-01 | 2021-10-08 | 苏州悍猛传动科技有限公司 | Detection tool |
-
2019
- 2019-08-29 CN CN201921425803.6U patent/CN210220916U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483712A (en) * | 2021-07-01 | 2021-10-08 | 苏州悍猛传动科技有限公司 | Detection tool |
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