TWM541002U - Length measuring device - Google Patents

Description

Length measuring device

This creation relates to a measuring device, in particular to a length measuring device for measuring the length of a standard member.

Measuring tools are tools for testing or correcting the functions of electronic or mechanical devices, and standard block gauges, or block gauges, are one of them. A block gauge is a standard tool used for precision measurement and is often used as a standard part and as a benchmark for length measurement. The shape of the block gauge is usually a rectangular parallelepiped and has a certain weight, and the material is usually metal.

Block gauges can inevitably oxidize or scratch and affect their accuracy, resulting in errors in measurement. Since the price of the block gauge is not low, other non-rigid wear measuring instruments are required to re-measure the block gauge and calibrate the new scale for continued use.

Nowadays, many precision measuring instruments still have some theoretical errors, such as Abbe error. In short, the axis of the length measuring instrument and the axis of the workpiece to be tested must be in the same line, otherwise an error will occur. Therefore, the conventional length measuring instrument has the necessity of improvement.

Therefore, the purpose of the present invention is to provide a length measuring device which can reduce the error of the length measurement.

The technical means used in the present invention to solve the problems of the prior art provides a length measuring device for measuring the length of a measuring tool, comprising: a measuring base, which is formed horizontally down along a measuring standard axis. The utility model has a measuring socket, and comprises a fixing base body and a movable seat body. The fixing seat system is fixedly disposed on the measuring tool receiving groove, and the movable seat system is slidably disposed on the measuring tool relative to the fixing seat body. a measuring fixture; a measuring fixture assembly comprising a fixed seat block and a movable seat block, wherein the fixed seat block and the movable seat block are respectively fixed to the fixed seat body and the movable seat body faces each other The two sides are oppositely aligned on the measurement standard axis, and an interposed space is enclosed between the fixed seat block, the movable seat block and the gauge receiving groove for the measurement A to-be-measured tool is sandwiched on the standard axis, and the length of the to-be-measured device is measured in a state in which the measurement standard axis is collinear with one of the to-be-measured tool length axes to be measured; and a data acquisition component, electricity Connected to the measuring base, according to the live Seat relative movement amount of the fixture member of the collection and measuring of the length of the test results.

In an embodiment of the present invention, a length measuring device is provided, the measuring device receiving groove having a U-shape and having opposite side walls and a bottom wall connected between the two side walls.

In an embodiment of the present invention, a length measuring device is provided. Two protruding rails are horizontally extended along the length direction of the measuring base, and are respectively protruded from the two side walls, and the two protruding rails respectively have a a curved portion, wherein the two curved portions are respectively protruded from the two side walls, and a bottom surface of the movable seat body is provided with a fitting member, and the fitting member is formed on the peripheral wall thereof to extend along the circumference to be adapted to the two The sliding groove of the curved portion of the convex rail, the movable seat body is slidably disposed on the measuring tool receiving groove with respect to the fixed seat body by the sliding groove fitting and sliding to the two convex rails.

In an embodiment of the present invention, a length measuring device is provided, the measuring base includes a body carrying top on two sides of the measuring sleeve receiving groove, and the fixed seat block and the movable seat block each A vertical portion and a vertical portion are included, the vertical portion includes an upper vertical portion and a lower vertical portion, and the upper vertical portion and the lower vertical portion are formed to extend up and down along a vertical direction perpendicular to one of the measurement standard axes.

In an embodiment of the present invention, a length measuring device is provided, wherein the fixed seat block and the movable seat block respectively have a gauge clamping portion on opposite surfaces, and the two measuring tools are along the clamping portion. The measurement standard axis projects toward the surface of the vertical portion for clamping against the object to be measured.

In an embodiment of the present invention, a length measuring device is provided, the gauge having a width in a lateral direction of 0.5 to 1.5 cm, the transverse direction being perpendicular to the vertical direction and the measurement standard axis.

In an embodiment of the present invention, a length measuring device is provided. The measuring base includes a body carrying top on two sides of the measuring tool receiving groove, and the fixed seat block and the movable seat block are respectively different. The utility model comprises a horizontal portion and a lower vertical portion, and the lower vertical portion is formed to extend downward along a vertical direction perpendicular to one of the measurement standard axes

In an embodiment of the present invention, a length measuring device is provided, the movable seat body includes a positioning member formed on a side of the movable seat body to fix the movable seat body to the measuring tool receiving groove, wherein The weight of the movable seat or the positioning member fixes the movable seat to the measuring device receiving groove is 3-7 kg.

In an embodiment of the present invention, a length measuring device is provided, which is a gauge, a caliper corrector, a caliper or a ruler.

According to the technical means adopted by the present invention, since the measurement to be measured is measured in a state in which the measurement standard axis and the axis to be measured of the object to be measured are collinear, the fixed seat block and the movable seat block have a horizontal direction. The configuration of the part and the vertical part, as well as the gage bearing groove are in the shape of a U-shape, which can avoid the occurrence of the Abbe principle error.

Preferably, the movable seat body has a certain weight, or the positioning member has a specific force for fixing the movable seat body to the measuring tool receiving groove, thereby providing a clamping force to the measuring instrument to reduce the measurement error, and Avoid jumping the last digit of the value produced by the data acquisition component. In addition, the fixed seat block and the movable seat block having the horizontal portion and the vertical portion can also correct the caliper corrector at the position of the upper vertical portion.

Embodiments of the present creation will be described below based on Figs. 1 to 5 . This description is not intended to limit the implementation of the present invention, but is one of the embodiments of the present invention.

As shown in FIG. 1 , a length measuring device 100 according to a first embodiment of the present invention is configured to measure the length of a measuring tool, including a measuring base 1, a measuring device clamping component and a data acquisition. Member 3.

As shown in the first to third figures, the measuring base 1 is horizontally formed with a measuring bearing groove 11 horizontally along a measuring standard axis. The measuring device receiving groove 11 has a U-shape and two opposite side walls. 111 and a bottom wall 112 connected between the two side walls. Two convex rails 12, 12' are horizontally extended along the longitudinal direction of the measuring base 1 and respectively protruded from the two side walls 111, and the two convex rails 12, 12' respectively have a curved portion, and the two The curved portions are respectively exposed to the two side walls 111.

As shown in FIGS. 1 to 3, the measuring base 1 includes a body carrying top portion 13, a fixing base body 14, and a movable seat body 15, and the seat body carrying top portion 13 is formed in the gauge bearing groove 11. On the two sides, the fixing base 14 is fixedly disposed on the measuring body receiving groove 11 and located on the seat carrying top 13 , and the bottom surface of the movable base 15 is provided with a fitting 151 . The fitting 151 is disposed on the bottom surface of the movable base 15 . A sliding groove 1511 adapted to the curved portion of the two convex rails 12, 12' is formed on the peripheral wall thereof, and the movable seat body 15 is fitted and slipped by the sliding groove 1511 to the two convex rails. 12 is slidably disposed on the fixture receiving groove 11 with respect to the fixed base 14. Preferably, the movable seat 15 has a weight of 3 to 7 kg, for example 5 kg, and provides a clamping force of a considerable weight to reduce the measurement error.

As shown in the first to third figures, the gauge clamping assembly includes a fixed seat block 21 and a movable seat block 22, and the fixed seat block 21 and the movable seat block 22 are respectively fixed to the fixed seat. The body 14 and the movable seat 15 are opposite sides of the movable body, and correspond to each other on the measurement standard axis, and between the fixed seat block 21, the movable seat block 22 and the gauge receiving groove 11 Enclosing an interposing space for clamping a to-be-measured tool B on the measurement standard axis, and measuring the standard axis with a length line of the to-be-measured tool B to be tested The length of the tool B to be measured is measured. Specifically, the to-be-measured tool B is a one-piece gauge, a caliper corrector, a caliper or a ruler.

As shown in the first to third embodiments, in detail, in the embodiment, the fixed seat block 21 and the movable seat block 22 are both in a cross shape, and each includes a horizontal portion T and a vertical portion V. The vertical portion V includes an upper vertical portion V1 and a lower vertical portion V2. The upper vertical portion V1 and the lower vertical portion V2 are formed by extending vertically upward and perpendicular to one of the vertical axes of the measurement standard axis, and the lower portion is formed. The vertical portion V2 extends into the gauge receiving groove 11 and the transverse portion T is horizontally disposed on the seat carrying top 13 . In addition, the fixed seat block 21 and the movable seat block 22 respectively have a gauge clamping portion 23 on opposite surfaces, and the two gauge clamping portions 23 protrude toward each other along the measuring standard axis. The surface of the vertical portion V is for clamping against the device B to be measured. Preferably, the gauge clamping portion 23 has a width W of 0.5 to 1.5 cm, for example 1 cm, in a transverse direction perpendicular to the vertical direction of the measurement standard axis to fit the width of the block gauge, so that The entire clamping position is more accurate. Of course, the creation is not limited to the shape of the fixed seat block and the movable seat block. In other embodiments, the fixed seat block and the movable seat block may be T-shaped, and include a horizontal portion and a lower vertical portion, and the lower vertical portion is perpendicular to a direction perpendicular to the standard axis of the measurement. And extending downwardly, and the lower vertical portion extends into the gauge receiving groove, and the horizontal portion is horizontally disposed on the seat carrying top.

As shown in FIGS. 1 to 3, specifically, the data acquisition member 3 is an optical scale, and is disposed at a side of the measurement base 1 and electrically connected to the measurement base 1, according to the The relative movement amount of the movable seat 15 relative to the fixed base 14 is collected and the length of the to-be-measured tool B is obtained. Preferably, the number of the data collection members 3 can be two, which are respectively disposed on opposite sides of the measurement base 1 to improve the accuracy of the entire measurement through multiple detections and data acquisition.

Preferably, the end of the measuring base can be provided with a connecting member to be connected with other measuring bases, so that the length of the measuring sleeve can be elastically adjusted.

As shown in FIGS. 4 and 5, a length measuring device 100a according to a second embodiment of the present invention is not much different from the structure of the length measuring device 100, and the difference mainly lies in: the movable seat 15 A positioning member 152 is formed on the side of the movable seat body 15. In the embodiment, the positioning member 152 fixes the movable base 15 to the gauge receiving groove 11 by screwing in a screw. Moreover, the force of the positioning member 152 for fixing the movable base 15 to the gauge receiving groove 11 is 3 to 7 kg, for example, 5 kg.

The above description and description are only illustrative of the preferred embodiments of the present invention, and those having ordinary skill in the art may make other modifications in accordance with the scope of the patent application as defined below and the above description, but such modifications are still It is the creative spirit of this creation and is within the scope of this creation.

100, 100a‧‧‧ length measuring device
1‧‧‧Measurement base
11‧‧‧Measurement socket
111‧‧‧ side wall
112‧‧‧ bottom wall
12, 12'‧‧‧ convex rail
13‧‧‧Host body top
14‧‧‧Fixed seat
15‧‧‧Active seat
151‧‧‧ fittings
1511‧‧‧Chute
152‧‧‧ positioning parts
21‧‧‧Fixed seat block
22‧‧‧ movable seat block
23‧‧‧ Measuring tool clamp
3‧‧‧Data acquisition components
B‧‧‧To be measured
T‧‧‧Women
V‧‧‧ vertical
V1‧‧‧Upper vertical
V2‧‧‧ lower vertical
W‧‧‧Width

Fig. 1 is a perspective view showing a length measuring device according to a first embodiment of the present invention. Fig. 2 is a perspective view showing a holder block and a movable seat block of the length measuring device according to the first embodiment of the present invention. Fig. 3 is a schematic enlarged view showing a convex rail and a chute of the length measuring device according to the first embodiment of the present invention. Fig. 4 is a perspective view showing a length measuring device according to a second embodiment of the present invention. Fig. 5 is a schematic view showing a positioning member of the length measuring device according to the second embodiment of the present invention.

100‧‧‧ Length measuring device

1‧‧‧Measurement base

11‧‧‧Measurement socket

12, 12’‧‧‧ convex rail

13‧‧‧Host body top

14‧‧‧Fixed seat

15‧‧‧Active seat

21‧‧‧Fixed seat block

22‧‧‧ movable seat block

23‧‧‧ Measuring tool clamp

3‧‧‧Data acquisition components

B‧‧‧To be measured

Claims (9)

A length measuring device for measuring the length of a measuring tool comprises: a measuring base, a measuring socket is formed horizontally downward along a measuring standard axis, and comprises a fixing base and a movable seat The fixture system is fixedly disposed on the gauge bearing groove, and the movable seat system is slidably disposed on the gauge bearing groove relative to the fixed seat body; a gauge clamping component including a fixed seat clamp And a movable seat block, the fixed seat block and the movable seat block are respectively fixed on the opposite sides of the fixed seat body and the movable seat body, and correspond to each other on the measurement standard axis. And a clamping space is arranged between the fixed seat block, the movable seat block and the gauge receiving groove for clamping a to-be-measured tool on the measuring standard axis, and the measuring standard Measuring a length of the to-be-measured device in a state in which an axis is collinear with one of the to-be-measured length axes; and a data acquisition member electrically connected to the measurement base, according to the movable base relative to the Collecting and obtaining the relative movement of the fixed seat Measuring the length of the test. The length measuring device of claim 1, wherein the gauge receiving groove has a U-shape and has opposite side walls and a bottom wall connected between the two side walls. The length measuring device of claim 2, wherein the two convex rails are horizontally extended along the length direction of the measuring base, respectively, and are respectively protruded from the two side walls, and the two convex rails respectively have a curved portion. The two curved portions are respectively protruded from the two side walls, and a bottom surface of the movable seat body is provided with a fitting member, and the fitting member is circumferentially extended along the circumferential wall thereof to be fitted with the two convex rails. a sliding groove of the curved portion, the movable seat body is slidably disposed on the measuring tool receiving groove with respect to the fixed seat body by the sliding groove fitting and sliding to the two convex rails. The length measuring device of claim 1, wherein the measuring base comprises a body carrying top on two sides of the gauge receiving groove, and the fixing block and the movable seat block respectively comprise a a horizontal portion and a vertical portion, the vertical portion including an upper vertical portion and a lower vertical portion, the upper vertical portion and the lower vertical portion being formed to extend up and down perpendicular to a vertical direction of one of the measurement standard axes, wherein the vertical portion The lower vertical portion extends into the gauge receiving groove, and the transverse portion is horizontally disposed on the seat carrying top. The length measuring device of claim 4, wherein the fixed seat block and the movable seat block respectively have a gage abutting portion on opposite surfaces, and the two gage clamping portions are along the measurement The standard axis projects toward the surface of the vertical portion for clamping against the object to be measured. The length measuring device according to claim 5, wherein the gauge clamping portion has a width in a lateral direction of 0.5 to 1.5 cm, and the transverse direction is perpendicular to the vertical direction and the measuring standard axis. The length measuring device of claim 1, wherein the measuring base comprises a body carrying top on two sides of the measuring sleeve, the fixed seat and the movable seat respectively comprise a horizontal And a lower vertical portion formed by extending downward in a direction perpendicular to one of the measurement standard axes, wherein the lower vertical portion extends into the gauge receiving groove, and the transverse portion The horizontal level is set on the top of the seat carrier. The length measuring device of claim 1, wherein the movable seat comprises a positioning member formed on a side of the movable seat to fix the movable seat to the gauge receiving groove, wherein the movable seat The weight of the body or the positioning member fixes the movable seat to the measuring sleeve receiving groove is 3-7 kg. The length measuring device according to claim 1, wherein the to-be-measured item is a one-piece gauge, a caliper corrector, a caliper or a ruler.