CN209978798U

CN209978798U - Verticality measuring device

Info

Publication number: CN209978798U
Application number: CN201920997576.8U
Authority: CN
Inventors: 王常勇; 曹思虎
Original assignee: LONGKOU LONGJI THREE PUMPS Co Ltd
Current assignee: LONGKOU LONGJI THREE PUMPS Co Ltd
Priority date: 2019-06-28
Filing date: 2019-06-28
Publication date: 2020-01-21
Anticipated expiration: 2029-06-28

Abstract

The utility model belongs to the technical field of machining, concretely relates to straightness measuring device hangs down. A guide rod is vertically arranged on the base, a sliding block is arranged at the top end of the guide rod in a penetrating mode, and a dial indicator and a measuring plate are arranged on the sliding block; the measuring plate is perpendicular to the horizontal plane, the measuring plate and the dial indicator are located on the same side face of the sliding block, and one side face of the measuring plate is in contact with a measuring head of the dial indicator. The device has the advantages of simple structure, low cost, high measurement precision, strong detection effectiveness on the verticality tolerance of the workpiece and capability of meeting the measurement requirement on the verticality tolerance of the workpiece.

Description

Verticality measuring device

Technical Field

The utility model belongs to the technical field of machining, concretely relates to straightness measuring device hangs down.

Background

Perpendicularity measurement is a condition that a measured element on a part maintains a correct 90-degree included angle relative to a reference element. Perpendicularity is a positional tolerance, which means the maximum allowable variation between the actual direction of the measured element and the ideal direction perpendicular to the reference.

The verticality of the workpiece is an important factor influencing the assembly precision, and when the tolerance is out of tolerance, the performance and reliability of the product are directly reduced. The traditional verticality detection method can only judge the verticality, cannot accurately read, is complex in measurement method and inconvenient to use, and is not suitable for batch detection of precise workpieces at present.

Disclosure of Invention

To the problem among the prior art, the utility model provides a straightness measuring device hangs down, simple structure, with low costs, measurement accuracy are high, and it is strong to work piece straightness tolerance detection validity that hangs down, satisfies the measurement requirement of work piece straightness tolerance that hangs down.

In order to achieve the purpose, the utility model is realized by the following technical scheme:

the utility model provides a straightness measuring device hangs down, its special character lies in:

a guide rod 2 is vertically arranged on the base 1, a sliding block 3 is arranged at the top end of the guide rod 2 in a penetrating mode, and a dial indicator 12 and a measuring plate 5 are arranged on the sliding block 3; the measuring plate 5 is vertical to the horizontal plane, the measuring plate 5 and the dial indicator 12 are located on the same side face of the sliding block, and one side face of the measuring plate 5 is in contact with a measuring head 15 of the dial indicator 12.

Furthermore, one end of the sliding block 3 is provided with a connecting plate 19, two side walls of the connecting plate 19 are respectively provided with a bearing seat 10, the connecting shaft 11 penetrates through the bearing seats at two sides and the connecting plate 19 in the middle, and one end of the connecting shaft 11 is connected with the measuring plate 5.

Furthermore, the meter seat 4 is fixedly connected to the same side wall of the sliding block 3 where the measuring plate 5 is located, one side of the dial indicator 12 is a measuring head 15, and the other side is a measuring rod 14, wherein the measuring head 15 penetrates through the meter seat 4, so that the tip of the measuring head 15 is in contact with the side surface of the measuring plate 5 facing the meter seat 4.

Furthermore, a positioning pin 6 is also arranged on the side wall of the slide block 3 where the dial indicator 12 is arranged, and the positioning pin 6 is adjacent to the side wall of the measuring plate 5.

Furthermore, on the other side of the measuring plate 5 facing away from the measuring head 15, there is a sloping inclined plane which forms a sharp angle at the end of the measuring plate (5) on which it is located.

Furthermore, a first tension spring pin 7 is installed on the side surface of the measuring plate 5, which is extended by the connecting shaft 11, a second tension spring pin 9 is installed on the side wall of the sliding block 3, which is provided with the dial indicator 12, and a tension spring is connected between the first tension spring pin 7 and the second tension spring pin 9.

Compared with the prior art, the utility model, its useful part lies in:

the utility model has simple structure and low cost; the measuring method is simple, can be used for detecting the surface-to-surface verticality of various workpieces or assemblies, is suitable for batch detection of products, has good applicability, can be used for detecting on a workpiece processing site at any time, and has strong practicability; the reading is accurate and quick, the detection state is recovered quickly, and the method is suitable for batch detection of products.

Drawings

Fig. 1 is a first perspective view of the present invention.

Fig. 2 is a second perspective view of the present invention.

Fig. 3 is a schematic front view of the present invention shown in fig. 1.

Fig. 4 is a schematic top view of fig. 1 according to the present invention.

Description of the labeling: 1. the base, 2, guide arm, 3, the slider, 4, the gauge stand, 5, measure the board, 6, the locating pin, 7, first extension spring round pin, 8, extension spring, 9, second extension spring round pin, 10, the bearing frame, 11, the connecting axle, 12, the percentage table, 13, first screw, 14, measuring stick, 15, the measuring head, 16, the second screw, 17, the dead eye, 18, the nut, 19, the connecting plate, 20, the fixed plate, 21, the third screw.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.

Example 1

In the present embodiment, as shown in fig. 1 to 4, the device for measuring perpendicularity includes a base 1, a guide rod 2, a slider 3, a measuring plate 5, a positioning pin 6, a gauge stand 4, a dial indicator 12, a bearing seat 10, and a connecting shaft 11.

Guide arm 2 installs on base 1, and the reference surface location is realized through fixed plate 14 to the bottom of guide arm 2, and fixed plate 14 passes through screw thread fixed connection on base 1, makes the perpendicular of guide arm 2 and base 1 horizontal plane looks perpendicular, and slider 3 cup joints on guide arm 2 top, and the side-mounting of slider 3 has percentage table 12.

As shown in fig. 1-3, the side surface of the slider 3 on which the dial indicator 12 is mounted is a front side, and the two ends are a left end and a right end, respectively, wherein the slider 3 can slide up and down in the vertical direction of the guide rod 2 for adjustment, a mounting hole for the second screw 16 to penetrate is formed in the side wall of the slider 3, and after the position of the slider 3 is determined, the position of the slider 3 on the guide rod 2 is locked by tightening the second screw 16.

Gauge stand 4 passes through third screw 21 to be connected on the front side of slider 3, is provided with the mating holes on gauge stand 4, and the 12 left ends of percentage table are measuring head 15, and the right-hand member is measuring stick 14, and wherein measuring head 15 is most advanced form, and measuring head 15 passes the mating holes, presss from both sides tight location with percentage table 12 in the mating holes of gauge stand 4 through first screw 13, and measuring stick 14 of percentage table 12 keeps the level.

On the side that slider 3 has gauge stand 4, namely the front side of slider 3 stretches out left end and forms connecting plate 19, bearing frame 10 is all installed to both sides around connecting plate 19, set up bearing hole 17 on two bearing frames, run through connecting axle 11 between two bearing frames 10, connecting axle 11 from the back to preceding, run through the bearing frame of connecting plate 19 rear side in proper order, connecting plate 19, the bearing frame of connecting plate 19 front side, measure board 5, and the end that connecting axle 11 stretches out and measures board 5 is fixed through nut 18, the end that connecting axle 11 stretches out rear side bearing frame also is fixed through the nut.

A matching hole is arranged on the connecting plate 19 of the sliding block 3, and the two bearing blocks 10 are in a front-back symmetrical state and are fixedly connected with the sliding block 3; the two bearing blocks 10 are connected through the connecting shaft 11, the connecting shaft 11 penetrates through the bearing holes 17 in the bearing blocks 10 to play a role in supporting and fixing two ends, and the connecting shaft 11 has the characteristics of flexible and stable rotation.

For the measuring plate 5, the left side is a vertical surface forming a slope with the horizontal plane, and the right side, the front side and the rear side are vertical surfaces perpendicular to the horizontal plane. The slider 3 is provided with a measuring plate 5, one side of the measuring plate 5 facing the slider is a non-measuring surface, namely the right side of the measuring plate, and the right side is contacted with the tip of the measuring head 15; the other side is a measuring surface, namely the left side surface of the measuring plate, a knife edge sharp angle is formed between the left end of the measuring plate 5 and the rear side surface of the measuring plate 5 on the left side surface, and the precision of the plane is tested by utilizing the sharp angle.

The measuring device is characterized in that the measuring device is fixed at one end of a connecting shaft 11 through a nut 18 along the thickness direction of a measuring plate 5, the non-measuring surface of the measuring plate 5 is in contact with a measuring head 15 of a dial indicator 12, a first tension spring pin 7 is arranged at the lower end of the front side surface of the measuring plate 5, a second tension spring pin 9 is arranged at the lower left corner of the front side surface of a sliding block 3, and the first tension spring pin 7 is connected with the second tension spring pin 9 through a tension spring 8; the side face of the sliding block 3, which is provided with the second tension spring pin, is also provided with a positioning pin 6, and the positioning pin 6 effectively limits the rotation of the measuring plate 15, so that the natural state of the measuring plate 15 is ensured to be in a basically vertical direction.

Before the measurement, on a platform with the flatness of 0 level, the position of the measurement surface of the measurement plate 5 is corrected. Enabling the knife edge sharp corner of the measuring surface of the measuring plate 5 to be close to the vertical surface of the square box, enabling the knife edge sharp corner of the measuring surface to be in contact with the vertical surface, enabling the knife edge sharp corner of the measuring surface and the vertical surface to be gapless according to visual inspection, resetting the dial indicator, screwing the first screw 13, and ensuring the dial indicator 12 to be still; placing a horizontal reference surface of a workpiece to be measured on an upper plane of a workbench, horizontally moving the workpiece, enabling a workpiece verticality measuring surface to abut against a knife edge sharp corner of a measuring surface of a measuring plate of the measuring device, if the reading of a dial indicator is zero, indicating that the two planes are completely vertical, if the reading of the dial indicator is not zero, indicating that the verticality tolerance of the two planes is half of the reading of the dial indicator, and moving the workpiece after the reading is finished; the tension spring between the first positioning pin and the second positioning pin can rapidly recover the detection state, and the measurement of the next workpiece can be carried out.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain a separate embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A verticality measuring device is characterized in that:

a guide rod (2) is vertically arranged on the base (1), a sliding block (3) penetrates through the top end of the guide rod (2), and a dial indicator (12) and a measuring plate (5) are arranged on the sliding block (3); the measuring plate (5) is vertical to the horizontal plane, the measuring plate (5) and the dial indicator (12) are located on the same side face of the sliding block, and one side face of the measuring plate (5) is in contact with a measuring head (15) of the dial indicator (12).

2. A verticality measuring apparatus according to claim 1, wherein:

one end of the sliding block (3) is provided with a connecting plate (19), bearing seats (10) are mounted on two side walls of the connecting plate (19), a connecting shaft (11) penetrates through the bearing seats on two sides and the connecting plate (19) in the middle, and one end of the connecting shaft (11) is connected with the measuring plate (5).

3. A verticality measuring apparatus according to claim 2, wherein:

gauge stand (4) fixed connection is on the same lateral wall of slider (3) that measures board (5) place, one side of percentage table (12) is measuring head (15), and the opposite side is measuring stick (14), and wherein measuring head (15) pass gauge stand (4) for the most advanced of measuring head (15) contacts with the side of measuring board (5) towards gauge stand (4).

4. A verticality measuring apparatus according to claim 3, wherein:

and a positioning pin (6) is further arranged on the side wall of the sliding block (3) provided with the dial indicator (12), and the positioning pin (6) is adjacent to the side wall of the measuring plate (5).

5. A verticality measuring apparatus according to claim 4, wherein:

the side face of the measuring plate (5) contacting with the measuring head (15) is a non-measuring face, the other side face of the measuring plate (5) opposite to the non-measuring face is a measuring face, and the measuring face forms a sharp angle at one end of the measuring plate (5).

6. A verticality measuring apparatus according to claim 5, wherein:

a first tension spring pin (7) is installed on the side face, extending out from the connecting shaft (11), of the measuring plate (5), a second tension spring pin (9) is installed on the side wall, provided with the dial indicator (12), of the sliding block (3), and a tension spring (8) is connected between the first tension spring pin (7) and the second tension spring pin (9).