CN217764808U - Taper detector for taper hole - Google Patents
Taper detector for taper hole Download PDFInfo
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- CN217764808U CN217764808U CN202220973829.XU CN202220973829U CN217764808U CN 217764808 U CN217764808 U CN 217764808U CN 202220973829 U CN202220973829 U CN 202220973829U CN 217764808 U CN217764808 U CN 217764808U
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- 238000004886 process control Methods 0.000 description 3
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Abstract
The utility model relates to the technical field of taper hole detection, and provides a taper hole taper detector, which comprises a dial gauge, a first ball measuring head and a second ball measuring head; the first ball measuring head is provided with a first through hole arranged along the radial direction of the first ball measuring head; a sleeve of the dial indicator penetrates through the first through hole and is fixedly connected with the first ball measuring head; the diameter of the second ball measuring head is smaller than that of the first ball measuring head; the second ball measuring head is provided with a second internal threaded hole extending along the radial direction of the second ball measuring head; the end part of a measuring rod of the dial indicator is provided with an external threaded shaft which is coaxially arranged; the external thread shaft is in threaded connection with the second internal thread hole. The utility model provides a taper hole tapering detector only needs simultaneously with the internal surface in close contact with of first ball gauge head and second ball gauge head and taper hole, and the tapering through reading on the amesdial just can accurately judge this taper hole whether qualified, has not only guaranteed the accuracy of testing result and the uniformity of examining time measuring in batches, and the time of detecting a taper hole only needs several seconds at least moreover, has improved detection efficiency greatly.
Description
Technical Field
The utility model belongs to the technical field of the taper hole detects technique and specifically relates to a taper hole tapering detector.
Background
The taper of the taper hole of the magneto rotor of the motorcycle is generally designed to be 1. For the detection of the taper hole of the magneto rotor, two detection methods exist:
1. whether the taper is qualified or not is judged by adopting the size of the red area of the taper hole after the visual standard taper is coated with red lead, but the method can only roughly and simply judge whether the taper is qualified or not, and the artificial subjective judgment has strong consciousness and is not objective.
2. The three-coordinate measuring instrument is adopted for measurement, although the method can accurately obtain the taper value of the taper hole, the measuring instrument has high cost, about 20 minutes is needed for detecting one taper hole, the detection efficiency is low, and the method is not suitable for the process control requirement of batch production.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that: the taper detector for the taper hole is provided, and the detection efficiency of the taper hole is improved.
The utility model provides a technical scheme that its technical problem adopted is: the taper hole taper detector comprises a dial indicator, a first ball measuring head and a second ball measuring head; the first ball measuring head is provided with a first through hole arranged along the radial direction of the first ball measuring head; the sleeve of the dial indicator penetrates through the first through hole and is fixedly connected with the first ball measuring head; the diameter of the second ball measuring head is smaller than that of the first ball measuring head; the second ball measuring head is provided with a second internal thread hole extending along the radial direction of the second ball measuring head; the end part of the measuring rod of the dial indicator is provided with an external threaded shaft which is coaxially arranged; the external thread shaft is in threaded connection with the second internal thread hole.
Furthermore, the second ball measuring head is of a segment-shaped structure, and the diameter of the bottom surface of the second ball measuring head is smaller than that of the second ball measuring head; the second internal threaded hole is formed in the bottom face of the second ball measuring head, and the center line of the second internal threaded hole is perpendicular to the bottom face of the second ball measuring head.
Furthermore, the diameter of a measuring rod of the dial indicator is larger than that of the external thread shaft, and the end face of the measuring rod is abutted to the bottom face of the second ball measuring head.
Furthermore, the measuring rod of the dial indicator and the external thread shaft are of an integrally formed structure.
Further, a sleeve of the dial indicator is fixedly connected with the first ball measuring head through a first detachable structure; the first detachable structure comprises a first sleeve and a first screw; the first sleeve is sleeved on the sleeve of the dial indicator and is in sliding fit with the sleeve; one end of the first sleeve is fixedly connected with the first ball measuring head; a first internal threaded hole is formed in the wall of the first sleeve; the first screw is in threaded connection with the first internal threaded hole, and the end of the first screw is abutted to the sleeve.
Furthermore, a positioning groove matched with the first screw is formed in the outer surface of the sleeve; the end part of the first screw extends into the positioning groove.
Furthermore, the first sleeve and the first ball measuring head are of an integrated structure.
Furthermore, the first ball measuring head is of a spherical table structure, and the diameters of the two bottom surfaces of the first ball measuring head are smaller than the diameter of the first ball measuring head; the center line of the first through hole is perpendicular to the bottom surface of the first ball measuring head.
Further, the dial indicator is a digital display dial indicator.
The beneficial effects of the utility model are that: the taper detector for the taper hole provided by the embodiment of the utility model has simple structure and low manufacturing cost, and is used for replacing expensive detecting instruments such as a three-coordinate measuring instrument and the like to detect the taper of the taper hole; examine time measuring, only need simultaneously with the internal surface in close contact with of first ball gauge head and second ball gauge head and taper hole, whether the tapering of this taper hole is qualified just can accurately be judged through the reading on the amesdial, not only guaranteed the accuracy of testing result and the uniformity of examining time measuring in batches, the time of detecting a taper hole only need a few seconds at least moreover, has improved detection efficiency greatly, is fit for batch production's process control demand.
Drawings
In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below; it is obvious that the drawings in the following description are only some of the embodiments described in the present application, and that, to a person skilled in the art, other drawings can also be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of a taper detector for taper holes according to an embodiment of the present invention;
FIG. 2 is a schematic view of the construction of the dial indicator;
FIG. 3 is an enlarged view of portion A of FIG. 2;
fig. 4 is a schematic structural view of a first ball probe;
fig. 5 is a schematic structural view of a second ball probe;
fig. 6 is a state diagram of a taper detector calibration device according to an embodiment of the present invention.
The reference numbers in the figures are: 101-a dial gauge, 102-a first ball measuring head, 103-a second ball measuring head, 104-a first through hole, 105-a sleeve, 106-a second internal threaded hole, 107-a measuring rod, 108-an external threaded shaft, 109-a first sleeve, 110-a first screw, 111-a first internal threaded hole, 112-a positioning groove, 113-a standard taper gauge and 114-a standard taper hole.
Detailed Description
In order to make the present invention better understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and examples. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. In case of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.
Referring to fig. 1 to 5, the taper detector for taper holes provided in the embodiment of the present invention includes a dial indicator 101, a first ball probe 102 and a second ball probe 103; the first ball probe 102 is provided with a first through hole 104 arranged along the radial direction; a sleeve 105 of the dial indicator 101 penetrates through the first through hole 104 and is fixedly connected with the first ball measuring head 102; the diameter of the second ball probe 103 is smaller than that of the first ball probe 102; the second ball probe 103 is provided with a second internal threaded hole 106 extending along the radial direction thereof; the end part of a measuring rod 107 of the dial indicator 101 is provided with an external thread shaft 108 which is coaxially arranged; the externally threaded shaft 108 is threaded into the second internally threaded bore 106.
The dial indicator 101 may be a product of the prior art, and is directly purchased from the market. The dial indicator 101 mainly comprises a dial plate, a sleeve 105 fixed on the dial plate, and a measuring rod 107, wherein one end of the measuring rod is arranged in the dial plate, and the other end of the measuring rod penetrates through the sleeve 105 and extends out of the sleeve 105; the spindle 107 is axially movable along itself. The dial gauge 101 is preferably a digital dial gauge. The digital display dial indicator is a dial indicator displayed in a digital mode, can be set at any position, can meet special requirements when the initial value is set, can be used for tolerance judgment when the tolerance value is set, can be used for conversion in a metric-English system, is provided with an output interface, and is subjected to data processing through calculation or a printer. Of course, the dial indicator 101 may also be a pointer dial indicator, which is not specifically limited herein. In one embodiment, the dial gauge 101 has a measuring range of 0-25mm and a precision of 0.001mm.
The first ball probe 102 may be a full sphere structure, in other words, the shape of the first ball probe 102 may be a full sphere; the global explanation is detailed in a concise mathematical dictionary, and is not repeated herein. The diameter of the first ball probe 102 is D1; the middle of the first ball measuring head 102 is provided with a first through hole 104, and the diameter of the first through hole 104 is larger than the outer diameter of the sleeve 105 of the dial indicator 101, so that the first ball measuring head 102 can be sleeved on the sleeve 105 of the dial indicator 101. The center line of the first through hole 104 is arranged along the radial direction of the first ball measuring head 102, so that the center line of the first through hole 104 passes through the center of the ball of the first ball measuring head 102; thus, when the sleeve 105 of the dial indicator 101 passes through the first through hole 104 of the first ball probe 102 and is fixedly connected with the first ball probe 102, the center line of the sleeve 105 can be ensured to pass through the center of the first ball probe 102.
The second ball probe 103 may have a full spherical structure, and the diameter of the second ball probe 103 is D2; wherein D2 is less than D1. The end part of a measuring rod 107 of the dial indicator 101 is provided with an external thread shaft 108 which is coaxially arranged; specifically, the externally threaded shaft 108 includes a shaft body and an external thread disposed on an outer surface of the shaft body. The second ball measuring head 103 is provided with a second internal thread hole 106 matched with the external thread shaft 108; the center line of the second internal thread hole 106 is arranged along the radial direction of the second ball probe 103, so that the center line of the second internal thread hole 106 passes through the center of the ball of the second ball probe 103; thus, when the second ball probe 103 is screwed to the end of the spindle 107 of the dial gauge 101 via the second female screw hole 106 and the male screw shaft 108, it is ensured that the center line of the spindle 107 passes through the center of the second ball probe 103.
The embodiment of the utility model provides a taper hole tapering detector, the diameter of first ball gauge head 102 and second ball gauge head 103 should be according to the size of being surveyed the taper hole and set up. Specifically, the diameter D1 of the first ball measuring head 102 is smaller than the diameter of the large end of the measured taper hole, and the diameter D2 of the second ball measuring head 103 is larger than the diameter of the small end of the measured taper hole; therefore, when the taper of the taper hole is detected, the spherical surfaces of the first spherical measuring head 102 and the second spherical measuring head 103 can be ensured to be simultaneously contacted with the inner surface of the taper hole to be detected.
Adopt the embodiment of the utility model provides a taper hole tapering detector carries out the process that detects to the tapering of motorcycle magneto rotor taper hole as follows: firstly, processing a standard taper gauge 113, wherein the standard taper gauge 113 is provided with a standard taper hole 114 which is consistent with the design size of a motorcycle magneto rotor taper hole; referring to fig. 6, the first spherical probe 102 and the second spherical probe 103 of the detector are placed in the standard taper hole 114, the spherical surfaces of the first spherical probe 102 and the second spherical probe 103 are in close contact with the inner surface of the standard taper hole 114, and then the dial indicator 101 is zeroed to complete the calibration work of the dial indicator 101; and (5) making a comparison table of the taper dimension and the numerical value of the dial indicator 101 to obtain the numerical value qualified range of the dial indicator 101 corresponding to the taper qualified range. Then, a first ball measuring head 102 and a second ball measuring head 103 of the detector are placed in a rotor taper hole of the motorcycle magneto, the spherical surfaces of the first ball measuring head 102 and the second ball measuring head 103 are in close contact with the inner surface of the rotor taper hole of the motorcycle magneto, the numerical value of the dial indicator 101 is read, whether the numerical value of the dial indicator 101 falls into a qualified range or not is judged, if yes, the taper is qualified, and if not, the taper is unqualified.
The embodiment of the utility model provides a taper detector for taper hole mainly comprises amesdial 101, first ball gauge head 102 and second ball gauge head 103, simple structure, low in manufacturing cost for replace detecting instrument such as expensive three-coordinate measuring apparatu to detect the tapering of taper hole; during detection, the first ball measuring head 102 and the second ball measuring head 103 are in close contact with the inner surface of the taper hole at the same time, whether the taper of the taper hole is qualified or not can be accurately judged through the reading on the dial indicator 101, the accuracy of a detection result and the consistency during batch detection are guaranteed, the time for detecting one taper hole only needs several seconds at least, the detection efficiency is greatly improved, and the method is suitable for the process control requirement of batch production. Through with second ball gauge head 103 and micrometer 101 survey pole 107 through second internal thread hole 106 with external screw thread axle 108 threaded connection, not only be convenient for install and dismantle second ball gauge head 103, the condition that the connecting piece loses can not appear in the installation moreover when dismantling second ball gauge head 103, more removable different diameters's second ball gauge head 103 to make this detector be applicable to the detection of different taper holes tapering, improved its application scope.
In the taper detector for taper holes provided in the embodiment of the present invention, the second ball probe 103 may also have other structures; for example, the second ball probe 103 has a segment-shaped structure, and the diameter of the bottom surface of the segment-shaped structure is smaller than the diameter of the second ball probe 103; the second internal threaded hole 106 is provided on the bottom surface of the second ball probe 103, and the center line thereof is perpendicular to the bottom surface of the second ball probe 103.
Referring to fig. 1 and 5, the second ball probe 103 is shaped as a segment. Wherein, the segment means: a plane is used to cut the sphere and the two resulting segments are called segments. The spherical side of the segment is called the ball strip and the circular plane of the segment is called the bottom. The bottom surface of the second ball probe 103 refers to the circular plane of the ball segment; the diameter of the bottom surface of the second ball probe 103 is d2. By setting D2 to be less than D2 and vertically setting the second internal threaded hole 106 on the bottom surface of the second ball probe 103, the ball strip of the second ball probe 103 can be ensured to be in close contact with the inner surface of the taper hole to be tested when the taper of the taper hole is detected.
Referring to fig. 1 and 2, the diameter of the measuring rod 107 of the dial indicator 101 is larger than the diameter of the male threaded shaft 108, and the end surface of the measuring rod 107 abuts against the bottom surface of the second ball probe 103. Preferably, the measuring rod 107 of the dial indicator 101 and the external thread shaft 108 are integrally formed. After purchasing the dial indicator 101 on the market, the external thread section is machined at one end of the measuring rod 107 through the lathe, the external thread shaft 108 in threaded connection with the second ball measuring head 103 can be formed, and the dial indicator is convenient to machine and simple to manufacture.
The first ball probe 102 may be connected to the sleeve 105 of the dial gauge 101 by welding or bonding, but this configuration does not facilitate replacement of the first ball probe 102.
In order to facilitate replacement of the first ball measuring head 102, preferably, referring to fig. 1 and 4, the sleeve 105 of the dial indicator 101 is fixedly connected with the first ball measuring head 102 through a first detachable structure; the first detachable structure comprises a first bushing 109 and a first screw 110; the first sleeve 109 is sleeved on the sleeve 105 of the dial indicator 101 and is in sliding fit with the sleeve 105; one end of the first sleeve 109 is fixedly connected with the first ball measuring head 102; a first internal threaded hole 111 is formed in the wall of the first sleeve 109; the first screw 110 is screwed into the first internally threaded hole 111, and an end of the first screw 110 abuts against the sleeve 105. Preferably, the first sleeve 109 is formed integrally with the first ball probe 102.
The inner diameter of the first sleeve 109 is adapted to the outer diameter of the sleeve 105 such that the first sleeve 109 is slidably mounted on the sleeve 105, ensuring that the first sleeve 109 is axially movable along the sleeve 105 without being radially displaceable relative to the sleeve 105. When first ball gauge head 102 needs to be installed on sleeve 105 of dial indicator 101, first ball gauge head 102 and first sleeve 109 are firstly sleeved on sleeve 105 of dial indicator 101, after the position is adjusted, first screw 110 is in threaded connection with first internal threaded hole 111, after first screw 110 is screwed down, the end of first screw 110 abuts against sleeve 105 of dial indicator 101, and then first ball gauge head 102 and sleeve 105 of dial indicator 101 can be detachably connected. Preferably, the first screw 110 is a headless screw, so that the outer end of the first screw 110 is located in the first internal threaded hole 111, and the outer end of the first screw 110 is prevented from protruding out of the first internal threaded hole 111 to affect the appearance.
In order to improve the firmness and stability of the connection between the first ball probe 102 and the sleeve 105 of the dial indicator 101, preferably, referring to fig. 2 and 3, a positioning groove 112 adapted to the first screw 110 is arranged on the outer surface of the sleeve 105; the end of the first screw 110 extends into the positioning groove 112. By extending the end of the first screw 110 into the positioning groove 112, a positive limit is formed in the axial direction and the circumferential direction of the sleeve 105 by the cooperation of the first screw 110 and the positioning groove 112, and the first ball measuring head 102 is prevented from being displaced in the axial direction and the circumferential direction of the sleeve 105.
In the taper hole taper detector provided in the embodiment of the present invention, the first ball probe 102 may have other structures; for example, the first ball probe 102 has a truncated-spherical structure, and the diameters of both bottom surfaces of the first ball probe 102 are smaller than the diameter of the first ball probe; the center line of the first through hole 104 is perpendicular to the bottom surface of the first ball probe 102.
Referring to fig. 1 and 4, the first ball probe 102 is shaped as a table. Wherein, the table means: the sphere is truncated by two parallel planes, the portion sandwiched between the two planes being called the table. The spherical side of the table is called the ball strip and the circular plane of the table is called the bottom surface. The bottom surface of the first ball probe 102 then refers to the circular plane of the table; one of the bottom surfaces of the first ball probe 102 has a diameter d1, and the other bottom surface has a diameter d1'. By setting D1 < D1 and D1' < D1 and vertically penetrating the first through hole 104 through the bottom surface of the first ball probe 102, the ball belt of the first ball probe 102 can be ensured to be in close contact with the inner surface of the taper hole to be detected when the taper hole is detected.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The taper detector for the taper hole is characterized by comprising a dial indicator (101), a first spherical measuring head (102) and a second spherical measuring head (103); the first ball measuring head (102) is provided with a first through hole (104) arranged along the radial direction of the first ball measuring head; the sleeve (105) of the dial indicator (101) penetrates through the first through hole (104) and is fixedly connected with the first ball measuring head (102);
the diameter of the second ball measuring head (103) is smaller than that of the first ball measuring head (102); a second internal thread hole (106) extending along the radial direction of the second ball measuring head (103) is formed in the second ball measuring head; the end part of a measuring rod (107) of the dial indicator (101) is provided with an external threaded shaft (108) which is coaxially arranged; the externally threaded shaft (108) is threaded in the second internally threaded bore (106).
2. The taper hole taper detector according to claim 1, wherein the second ball probe (103) is of a segment-shaped configuration, and a diameter of a bottom surface thereof is smaller than a diameter of the second ball probe (103); the second internal thread hole (106) is arranged on the bottom surface of the second ball measuring head (103), and the central line of the second internal thread hole is perpendicular to the bottom surface of the second ball measuring head (103).
3. The taper hole taper detector according to claim 2, wherein a diameter of a measuring rod (107) of the dial indicator (101) is larger than a diameter of the male screw shaft (108), and an end surface of the measuring rod (107) abuts against a bottom surface of the second ball probe (103).
4. The taper hole taper detector according to claim 1, 2 or 3, wherein the measuring rod (107) of the dial indicator (101) and the externally threaded shaft (108) are of an integrally molded structure.
5. The taper hole taper detector according to claim 1, wherein the sleeve (105) of the dial indicator (101) is fixedly connected with the first ball probe (102) through a first detachable structure;
the first detachable structure comprises a first sleeve (109) and a first screw (110); the first sleeve (109) is sleeved on the sleeve (105) of the dial indicator (101) and is in sliding fit with the sleeve (105); one end of the first sleeve (109) is fixedly connected with the first ball measuring head (102); a first internal threaded hole (111) is formed in the wall of the first sleeve (109); the first screw (110) is screwed into the first female screw hole (111), and the end of the first screw (110) abuts against the sleeve (105).
6. The taper hole taper detector according to claim 5, wherein a positioning groove (112) for fitting with the first screw (110) is provided on an outer surface of the sleeve (105); the end of the first screw (110) extends into the positioning groove (112).
7. The taper detector according to claim 5, wherein the first sleeve (109) is integrally formed with the first ball probe (102).
8. The taper hole taper detector according to claim 1, 5, 6 or 7, wherein the first ball probe (102) is of a truncated-spherical configuration, and the diameter of both bottom surfaces thereof is smaller than the diameter of the first ball probe (102); the central line of the first through hole (104) is vertical to the bottom surface of the first ball measuring head (102).
9. The taper detector according to claim 1, wherein said dial indicator (101) is a digital dial indicator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220973829.XU CN217764808U (en) | 2022-04-25 | 2022-04-25 | Taper detector for taper hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220973829.XU CN217764808U (en) | 2022-04-25 | 2022-04-25 | Taper detector for taper hole |
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| Publication Number | Publication Date |
|---|---|
| CN217764808U true CN217764808U (en) | 2022-11-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220973829.XU Active CN217764808U (en) | 2022-04-25 | 2022-04-25 | Taper detector for taper hole |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754656A (en) * | 2022-04-25 | 2022-07-15 | 成都华川电装有限责任公司 | Taper detector for taper hole |
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- 2022-04-25 CN CN202220973829.XU patent/CN217764808U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754656A (en) * | 2022-04-25 | 2022-07-15 | 成都华川电装有限责任公司 | Taper detector for taper hole |
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