CN214250930U - Lead screw inner diameter measuring mechanism - Google Patents
Lead screw inner diameter measuring mechanism Download PDFInfo
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- CN214250930U CN214250930U CN202120402465.5U CN202120402465U CN214250930U CN 214250930 U CN214250930 U CN 214250930U CN 202120402465 U CN202120402465 U CN 202120402465U CN 214250930 U CN214250930 U CN 214250930U
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Abstract
The utility model discloses a lead screw internal diameter measurement mechanism belongs to lead screw internal diameter measurement equipment technical field. It includes base, clamping jaw jar, left slider, right slider, displacement sensor, install the clamping jaw jar in the base, the output of two horizontal relative motion of clamping jaw jar is fixed with the left slider, the right slider that press from both sides tightly relatively respectively, installs displacement sensor between left slider, the right slider, still includes the tight head in top and floats the tight head in top. The left slider, the tight head of right slider drive respectively and the tight head of top that floats presss from both sides the lead screw tightly, when the measurement is put into to the lead screw that is not totally vertical, at first aim at the left side thread groove of lead screw with the tight head in top of left side, then the tight head of top that floats is rotated manually for the tight head of first unsteady top and the tight head of second top of floating aim at the same horizontal position's in right side twice thread groove, the clamping jaw cylinder presss from both sides the tight back, the tight head of top that floats can right the lead screw automatically, eliminate because the uncertain deviation that exists when the lead screw gesture is totally vertical puts into the measuring position.
Description
Technical Field
The utility model relates to a lead screw internal diameter measurement mechanism belongs to lead screw internal diameter measurement equipment technical field.
Background
The lead screw is a mechanical transmission element capable of converting rotary motion into linear motion. The screw rod is matched with the nut through threads, and the nut rotates to drive the screw rod to move along the axial direction, so that rotary motion is converted into linear motion. The screw rod mainly comprises the following parameters: outer diameter, inner diameter, pitch, lead. Wherein, the inner diameter refers to the diameter of an imaginary cylindrical surface which is superposed with the thread root of the external thread of the screw rod. During measurement, the screw rod is required to be strictly kept perpendicular to a tightening head of a measuring instrument. At present, the inner diameter of the screw rod is mainly measured in a manual mode, the efficiency is low, and uncertainty errors are easy to generate during manual measurement of the inner diameter of the screw rod. Therefore, a screw inner diameter measuring mechanism is designed, which can eliminate uncertainty deviation existing when the screw posture is not completely vertically placed into a measuring position.
Disclosure of Invention
The utility model discloses the technical problem that will solve lies in: the utility model provides a lead screw internal diameter measurement mechanism, it has solved the problem that there is uncertainty error in present lead screw internal diameter manual measurement.
The utility model discloses the technical problem that will solve takes following technical scheme to realize:
the utility model provides a lead screw internal diameter measurement mechanism, it includes base, clamping jaw jar, left slider, right slider, displacement sensor, install the clamping jaw jar in the base, two horizontal relative movement's of clamping jaw jar output is fixed with relative tight left slider, right slider respectively, installs displacement sensor, its characterized in that between left slider, the right slider: the device also comprises a puller head and a floating puller head;
the puller head is horizontally arranged on the inner side of the left sliding block;
the floating tightening head is hinged to the inner side of the right sliding block, the floating tightening head is composed of a stop block, a first floating tightening head and a second floating tightening head which are fixed on one side of the stop block in parallel are formed, the distance between the first floating tightening head and the second floating tightening head is equal to the distance between lead screws, the horizontal height of the tightening head is located between the first floating tightening head and the second floating tightening head, and when the first floating tightening head and the second floating tightening head tighten the vertically adjacent thread grooves of the lead screws, the tightening head just tightens the thread grooves on the other side of the lead screws.
As a preferable example, the top of the right slide block is provided with a hinge groove, the stop block of the floating puller head is arranged in the hinge groove through a hinge pin, and the bottom surface of the hinge groove defines the downward rotating angle of the stop block.
As a preferable example, the end parts of the tightening head, the first floating tightening head and the second floating tightening head are all in a spherical structure.
The utility model has the advantages that:
(1) the left sliding block and the right sliding block are driven by the clamping jaw cylinder, the placed lead screw is automatically clamped, and the inner diameter of the lead screw is measured by the displacement sensor arranged between the left sliding block and the right sliding block, so that the measuring efficiency can be improved;
(2) the left slider, the tight head of right slider drive respectively and the tight head of top that floats presss from both sides the lead screw tightly, when the measurement is put into to the lead screw that is not totally vertical, at first aim at the left side thread groove of lead screw with the tight head in top of left side, then the tight head of top that floats is rotated manually for the tight head of first unsteady top and the tight head of second top of floating aim at the same horizontal position's in right side twice thread groove, the clamping jaw cylinder presss from both sides the tight back, the tight head of top that floats can right the lead screw automatically, eliminate because the uncertain deviation that exists when the lead screw gesture is totally vertical puts into the measuring position.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the installation structure of the floating tightening head.
In the figure: the device comprises a base 1, a clamping jaw cylinder 2, a left sliding block 3, a right sliding block 4, a hinge groove 401, a displacement sensor 5, a tightening head 6, a floating tightening head 7, a stop block 701, a first floating tightening head 702, a second floating tightening head 703, a screw rod 8 and a hinge pin 9.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, the present invention is further explained by combining the following specific drawings.
As shown in fig. 1 and 2, a lead screw inner diameter measuring mechanism comprises a base 1, a clamping jaw cylinder 2, a left slider 3, a right slider 4 and a displacement sensor 5, wherein the clamping jaw cylinder 2 is installed in the base 1, the left slider 3 and the right slider 4 which are clamped relatively are respectively fixed at two output ends of the clamping jaw cylinder 2 which move horizontally relative to each other, the displacement sensor 5 is installed between the left slider 3 and the right slider 4, and the lead screw inner diameter measuring mechanism further comprises a puller head 6 and a floating puller head 7;
the puller 6 is horizontally arranged on the inner side of the left sliding block 3;
the floating tightening head 7 is hinged on the inner side of the right sliding block 4, the floating tightening head 7 is composed of a stop block 701, a first floating tightening head 702 and a second floating tightening head 703 which are fixed on one side of the stop block 701 in parallel, the distance between the first floating tightening head 701 and the second floating tightening head 702 is equal to the distance of a lead screw 8 lead, the horizontal height of the tightening head 6 is positioned between the first floating tightening head 702 and the second floating tightening head 703, and when the first floating tightening head 702 and the second floating tightening head 703 tighten the vertically adjacent thread grooves of the lead screw 8, the tightening head 6 just tightens the thread groove on the other side of the lead screw 8.
The displacement sensor 5 adopts a product sold in the market, the main body of the displacement sensor 5 is fixed on the right sliding block 4, the telescopic rod of the displacement sensor 5 is connected with the left sliding block 3, and when the left sliding block and the right sliding block relatively displace, the displacement sensor 5 can measure the change of the distance between the left sliding block and the right sliding block with high precision.
The top of the right slide block 4 is provided with a hinge groove 401, a stop block 701 of the floating puller head 7 is installed in the hinge groove 401 through a hinge pin 9, and the bottom surface of the hinge groove 401 limits the downward rotating angle of the stop block 701.
The end parts of the tightening head 6, the first floating tightening head 702 and the second floating tightening head 703 all adopt spherical structures. The spherical structure enables the end part to fall into the bottommost part of the thread groove, and the measurement is more accurate.
The working principle is as follows:
(1) the left sliding block 3 and the right sliding block 4 are driven by the clamping jaw cylinder, the put-in screw rod 8 is automatically clamped, and the inner diameter of the screw rod 8 is measured by the displacement sensor 5 arranged between the left sliding block 3 and the right sliding block 4, so that the measuring efficiency can be improved;
(2) left slider 3, right slider 4 drives respectively and tightly pushes up head 6 and unsteady tight head 7 and presss from both sides the lead screw 8 tightly, when the measurement is put into to totally vertical lead screw 8, at first aim at the left side thread groove of lead screw 8 with left tight head 6, then manual rotation floats tight head 7, make first unsteady tight head 702 and the second unsteady tight head 703 roughly aim at the same horizontal position's in right side twice thread groove, clamping jaw cylinder 2 presss from both sides tightly the back, because tight head 6 and unsteady tight head 7 articulated position are fixed, unsteady tight head 7 can be automatic centering lead screw 8, eliminate because the uncertain deviation that exists when the measurement position was not totally vertically put into to the 8 gesture of lead screw.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above-described embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a lead screw internal diameter measurement mechanism, it includes base, clamping jaw jar, left slider, right slider, displacement sensor, install the clamping jaw jar in the base, two horizontal relative movement's of clamping jaw jar output is fixed with relative tight left slider, right slider respectively, installs displacement sensor, its characterized in that between left slider, the right slider: the device also comprises a puller head and a floating puller head;
the puller head is horizontally arranged on the inner side of the left sliding block;
the floating tightening head is hinged to the inner side of the right sliding block, the floating tightening head is composed of a stop block, a first floating tightening head and a second floating tightening head which are fixed on one side of the stop block in parallel are formed, the distance between the first floating tightening head and the second floating tightening head is equal to the distance between lead screws, the horizontal height of the tightening head is located between the first floating tightening head and the second floating tightening head, and when the first floating tightening head and the second floating tightening head tighten the vertically adjacent thread grooves of the lead screws, the tightening head just tightens the thread grooves on the other side of the lead screws.
2. The screw rod inner diameter measuring mechanism is characterized in that a hinge groove is formed in the top of the right sliding block, a stop block of the floating puller is installed in the hinge groove through a hinge pin, and the bottom surface of the hinge groove defines the downward rotation angle of the stop block.
3. The screw rod inner diameter measuring mechanism according to claim 1, wherein the end portions of the tightening head, the first floating tightening head and the second floating tightening head are all in a spherical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120402465.5U CN214250930U (en) | 2021-02-23 | 2021-02-23 | Lead screw inner diameter measuring mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120402465.5U CN214250930U (en) | 2021-02-23 | 2021-02-23 | Lead screw inner diameter measuring mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214250930U true CN214250930U (en) | 2021-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120402465.5U Active CN214250930U (en) | 2021-02-23 | 2021-02-23 | Lead screw inner diameter measuring mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214250930U (en) |
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2021
- 2021-02-23 CN CN202120402465.5U patent/CN214250930U/en active Active
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