CN219914303U - Flatness detection tool - Google Patents

Abstract

The utility model discloses a flatness detection tool, which comprises a center seat, a measuring meter, reference correction pins and at least two adjusting rods which are arranged at intervals along the circumferential direction of the center seat, wherein each adjusting rod is directly or indirectly meshed with one end of the center seat to horizontally drive and is respectively connected with the center seat in a horizontal rotation mode, the reference correction pins are connected to the bottoms of the center seat and/or the adjusting rods and can stably support the adjusting rods, the bottoms of the reference correction pins are positioned on the same horizontal plane, the measuring meter is one or two of a dial indicator and a percentage indicator, the measuring meter is detachably arranged on the adjusting rods, the measuring heads, which are in contact with a plane to be detected, on the measuring meter are downwards arranged, and the positions of the measuring heads are lower than the bottoms of the reference correction pins. According to the utility model, any adjusting rod can be stirred during measurement, other adjusting rods and measuring meters on the adjusting rods are synchronously driven through the meshing transmission function between the adjusting rods, the purpose of switching the measuring points is achieved, and the switching of the measuring points is quick and labor-saving.

Description

Flatness detection tool

Technical Field

The utility model relates to the technical field of measuring tools, in particular to a flatness detection tool.

Background

Flatness is an index limiting the amount of variation of an actual plane from its ideal plane, and is used to control the shape error of the measured actual plane. In the wheel manufacturing industry, the flatness of the spoke of the steel ring is usually required to be detected, and the flatness of the steel ring can be measured by adopting equipment capable of automatically switching measuring points, such as a three-coordinate measuring instrument, or by adopting a gauge corresponding to various types and specifications of the steel ring. The three-coordinate measuring instrument and other devices have high measurement precision, but occupy larger space, are inconvenient to use in workshops on site, and have high purchase cost; the other corresponding detecting tools usually need to manually rotate the steel ring or rotate the detecting tools to switch measuring points when measuring, and multipoint measurement is carried out on the plane to be detected, but the types and the types of the steel rings are various, the sizes of part of the steel rings are larger and heavier, the corresponding detecting tools are larger, and the rotating steel ring or the rotating detecting tools are inconvenient.

Disclosure of Invention

The utility model aims to provide a flatness detection tool, which is convenient for switching measuring points to carry out multipoint measurement on a plane to be detected.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a flatness detection frock, includes center seat, measuring table, benchmark calibration pin and two at least regulation poles of arranging along center seat circumference interval, each regulation pole is direct or indirect meshing with horizontal transmission towards the one end of center seat to be connected with center seat level rotation respectively, benchmark calibration pin is connected in center seat and/or regulation pole bottom, and can steadily support the regulation pole, each benchmark calibration pin's bottom is located same horizontal plane, the measuring table is one or two in percentage table and the amesdial, measuring table detachably installs on adjusting the pole, and measuring head that contacts with the plane that awaits measuring on the measuring table sets up downwards, measuring head's position is less than benchmark calibration pin bottom.

Further, the adjusting rod comprises a gear part and a rod body part, the gear part is positioned at one end of the adjusting rod facing the center seat and is horizontally and rotatably connected with the center seat, and the measuring meter is arranged on the rod body part; when the adjusting rods are directly meshed for transmission, the number of the adjusting rods is even, and the gear parts of the adjusting rods are sequentially meshed with each other along the arrangement direction of the adjusting rods; when each adjusting rod is indirectly engaged for transmission, a transition gear is arranged between each adjusting rod and is respectively engaged with the transition gear.

Further, the rod body part comprises a first rod body part and a second rod body part, an acute angle, a right angle or an obtuse angle is formed between the first rod body part and the second rod body part, the second rod body part is positioned between the first rod body part and the gear part, and the measuring meter is arranged on the first rod body part.

Further, the center seat comprises an upper disc body and a lower disc body, a bolt and a bearing are fixedly arranged between the upper disc body and the lower disc body, the bolt is vertically arranged and fixedly connected with the upper disc body and the lower disc body, the bearing is sleeved outside the bolt, and the gear part is sleeved outside the bearing and limited between the upper disc body and the lower disc body.

Further, a handle is fixedly arranged at the top of the upper tray body.

Further, the device also comprises at least two angle limiting pins, wherein the angle limiting pins are fixedly connected with the center seat and mutually space any two adjacent adjusting rods.

Furthermore, the adjusting rods are uniformly distributed, and the angle limiting pins are uniformly distributed in an annular array.

Further, the measuring meter is one or more of a pointer type measuring meter, a digital display type measuring meter and a lever type measuring meter.

Further, the measuring meter is provided with a measuring rod which can stretch up and down, a plurality of first mounting holes are formed in the top of the adjusting rod, the first mounting holes are distributed at intervals along the length direction of the adjusting rod, the first mounting holes penetrate through the adjusting rod up and down, and the measuring rod can penetrate through the measuring rod.

Further, the measuring meter is a lever-type measuring meter, a linear installation boss is arranged on the outer side in a protruding mode, a plurality of second installation holes are formed in the side edge of the adjusting rod, the second installation holes are distributed at intervals along the length direction of the adjusting rod, fixing pins are arranged inside the second installation holes, the tail ends of the fixing pins are exposed out of the second installation holes and extend to form two clamping portions, clamping rings are sleeved on the outer sides of the fixing pins, the two clamping portions are located on two sides of the installation boss relatively and close to the side wall surface of the installation boss, and the clamping rings are used for clamping the two clamping portions and enabling the two clamping portions to clamp and fix the installation boss.

The utility model has the following beneficial effects:

the tool is provided with an adjusting rod which is directly or indirectly meshed and can be horizontally transmitted, the adjusting rod is provided with a measuring meter and a reference correcting pin, before measurement, the tool can be placed on a reference plane, the measuring meter is calibrated in a zero mode, when measurement is carried out, the tool can be placed on a plane to be measured, the measuring meter is used for measuring multiple points on the plane to be measured, the flatness condition of the plane to be measured can be obtained by reading measured values at multiple positions of the plane to be measured, any adjusting rod can be horizontally stirred during measurement, other adjusting rods are synchronously driven through the meshing transmission function between the adjusting rods, the position of the measuring meter is changed, the purpose of converting the measuring points is achieved, and the tool is labor-saving and convenient when converting the measuring points.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present utility model.

Fig. 2 is a schematic diagram of an explosion structure according to an embodiment of the utility model.

Fig. 3 is a schematic top view (with parts omitted) of an embodiment of the present utility model.

FIG. 4 is a schematic view of the structure of the adjusting lever and the measuring meter of the present utility model.

Fig. 5 is a schematic view of the lever type measuring meter and the fixing pin according to the present utility model.

Fig. 6 is a schematic view showing an unfolded state of the adjusting lever according to the present utility model.

Fig. 7 is a schematic view showing a contracted state of the adjusting lever according to the present utility model.

Fig. 8 is a schematic diagram of the zero alignment state of the present utility model.

FIG. 9 is a schematic diagram of the detection state of the present utility model.

Fig. 10 is a schematic top view (with part omitted) of a second embodiment of the present utility model.

Description of main reference numerals: 1. a center seat; 2. an upper tray body; 3. a handle; 4. a lower tray body; 5. a plug pin; 6. a bearing; 7. an angle limiting pin; 8. a transition gear; 9. an adjusting rod; 10. a first rod body; 11. a reference calibration pin; 12. a first mounting hole; 13. a second mounting hole; 14. a second rod body; 15. a gear portion; 16. a measuring meter; 17. a measuring rod; 18. a measuring head; 19. a mounting boss; 20. a fixing pin; 21. a clamping part; 22. a clamping ring; 23. a calibration plate; 24. a reference plane; 25. a steel ring; 26. a plane to be measured; alpha, an included angle formed between the first rod body part and the second rod body part.

Detailed Description

The utility model will be further described with reference to the drawings and detailed description.

Example 1

As shown in fig. 1-9, the utility model discloses a flatness detection tool, which comprises a center seat 1, a measuring meter 16, reference calibration pins 11 and at least two adjusting rods 9 which are arranged along the circumference of the center seat 1 at intervals, wherein each adjusting rod 9 is directly or indirectly meshed towards one end of the center seat 1 to horizontally drive and is respectively connected with the center seat 1 in a horizontal rotation mode, the reference calibration pins 11 are connected to the bottoms of the center seat 1 and/or the adjusting rods 9 and can stably support the adjusting rods 9, the bottoms of the reference calibration pins 11 are positioned on the same horizontal plane, the measuring meter 16 is one or two of a dial indicator and a dial indicator, the measuring meter 16 is detachably arranged on the adjusting rods 9, a measuring head 18 which is in contact with a plane 26 to be detected on the measuring meter 16 is arranged downwards, and the position of the measuring head 18 is lower than the bottom of the reference calibration pins 11.

Wherein the number of the reference correction pins 11 is determined according to the shape of the bottom thereof, when the contact surfaces between the reference correction pins 11 and the reference plane 24, 26 to be measured are small, the reference correction pins 11 are preferably provided with three or more to ensure smooth support, and when the contact surfaces are large, the number of the reference correction pins 11 can be appropriately reduced. The bottoms of the reference calibration pins 11 are positioned on the same horizontal plane, so that the reference calibration pins can stably support the adjusting rod 9, and can be matched with the reference plane 24 to calibrate all the measuring meters 16 in a one-time zero setting mode.

The adjusting rods 9 can be engaged and driven by various matching and combining of toothed parts such as gears, toothed rings and the like, and the engaged and driven mode can be straight-tooth gear engaged and driven, helical-tooth gear engaged and driven, internal engaged, external engaged and the like. As one of the cases, the adjusting lever 9 includes a gear portion 15 and a lever body portion, the gear portion 15 is located at one end of the adjusting lever 9 facing the center seat 1 and is horizontally rotatably connected with the center seat 1, and the measuring meter 16 is mounted on the lever body portion; when the adjusting rods 9 are indirectly engaged for transmission, a transition gear 8 is arranged between the adjusting rods 9 and is respectively engaged with the transition gear 8.

The transition gear 8 is horizontally rotated and connected with the center seat 1, all the adjusting rods 9 can be synchronously driven to rotate through transition of the transition gear 8, the rotation directions of the adjusting rods 9 are adjusted to be consistent, the number of the adjusting rods 9 is limited to be small, in addition, the transition gear 8 can space the gear parts 15 of the adjusting rods 9, namely, the positions of the rotating shafts around which the adjusting rods 9 rotate are inconsistent, when the adjusting rods 9 synchronously rotate, the adjusting rods 9 can be synchronously unfolded and contracted as shown in fig. 6 and 7, the measuring gauges 16 on the adjusting rods 9 can be simultaneously close to or far from the center seat 1 and are converted to different measuring points, the contact ratio of the measuring gauges 16 moving along with the adjusting rods 9 is small, on the basis, the whole tool is matched to rotate, any point on the plane 26 to be measured basically, and the accuracy of plane measurement is improved. The measuring meter 16 arranged on the existing gauge moves on the same annular track, so that the measuring effect is poor. Furthermore, under the condition that the position of the reference calibration pin 11 is closer to the center seat 1, the measuring meter 16 can be moved closer to the center seat 1, so that the tool can be suitable for steel rings 25 with different specifications and sizes, and the universality of the tool is improved.

On the basis, the rod body part comprises a first rod body part 10 and a second rod body part 14, an acute angle or a right angle or an obtuse angle alpha is formed between the first rod body part 10 and the second rod body part 14, the second rod body part 14 is positioned between the first rod body part 10 and the gear part 15, and the measuring meter 16 is arranged on the first rod body part 10. By setting the angles of different magnitudes between the first rod body 10 and the second rod body 14, the area covered by the expansion and contraction of the adjusting rod 9 can be adjusted, that is, the area measured by each measuring meter 16 can be adjusted.

For the convenience of installing and adjusting the pole 9, this center seat 1 includes disc 2 and lower disc 4, and the fixed bolt 5 and the bearing 6 of being provided with between disc 2 and the lower disc 4 are gone up, and bolt 5 vertical setting to fixed connection goes up disc 2 and lower disc 4, bearing 6 cover are established in the bolt 5 outside, and gear portion 15 cover is established in the bearing 6 outside, and is spacing between disc 2 and lower disc 4. The pin 5, the bearing 6 and the gear portion 15 are preferably coaxially arranged. For conveniently taking and placing the whole tool, a handle 3 can be fixedly arranged at the top of the upper disc body 2, so that the tool is convenient to hold.

In addition, the device also comprises at least two angle limiting pins 7, wherein the angle limiting pins 7 are fixedly connected with the center seat 1, and any two adjacent adjusting rods 9 are mutually spaced. When the upper tray 2 and the lower tray 4 are arranged, the angle limiting pin 7 is positioned between the upper tray 2 and the lower tray 4 and is fixedly connected with the upper tray 2 or the lower tray 4. By the angle limiting pins 7 provided at each interval, the adjusting lever 9 and the adjusting lever 9 can be separated from each other, and the limit angle of rotation of the adjusting lever 9 is limited, and the maximum angle at which each adjusting lever 9 can rotate depends on the distance and the position between the adjacent two angle limiting pins 7. Preferably, the adjusting rods 9 are uniformly distributed, and the angle limiting pins 7 are uniformly distributed in an annular array, so that the limit angles of the rotatable adjustment of the adjusting rods 9 are consistent.

The measuring meter 16 arranged on the adjusting rod 9 can be a common vertical type dial indicator or dial indicator, or a lever type dial indicator or dial indicator, and the measuring meter 16 can be a pointer type or a digital display type.

When the vertical measuring meter 16 is adopted, the measuring meter 16 is provided with a measuring rod 17 which can stretch up and down, a plurality of first mounting holes 12 are correspondingly formed in the top of the adjusting rod 9, the first mounting holes 12 are distributed at intervals along the length direction of the adjusting rod 9, the adjusting rod 9 is vertically penetrated, the measuring rod 17 can penetrate through, and a measuring head 18 at the tail end of the measuring rod 17 can be contacted with a plane 26 to be measured. The measuring meter 16 can be selectively detached and installed in the first installation holes 12 at different positions according to different measuring requirements, so that the measured area can be adjusted; alternatively, the measuring meter 16 may be installed in the plurality of first mounting holes 12 at the same time, and a plurality of measuring points on the plane 26 to be measured may be measured at one time.

When the lever-type measuring meter 16 is selected as the measuring meter 16, a linear mounting boss 19 is convexly arranged on the outer side of the measuring meter 16, a plurality of second mounting holes 13 are formed in the side edge of the adjusting rod 9, the second mounting holes 13 are distributed at intervals along the length direction of the adjusting rod 9, fixing pins 20 are arranged in the second mounting holes, the tail ends of the fixing pins 20 are exposed out of the second mounting holes 13 and extend to form two clamping portions 21, clamping rings 22 are sleeved on the outer side of the fixing pins 20, the two clamping portions 21 are oppositely located on two sides of the mounting boss 19 and are close to the side wall surface of the mounting boss 19, and the clamping rings 22 are used for clamping the two clamping portions 21 and enabling the two clamping portions 21 to clamp and fix the mounting boss 19. The clamping ring 22 and the fixing pin 20 can be matched in a threaded connection mode, and the distance between the two clamping parts 21 is squeezed and pulled to enable the clamping boss 19 to clamp and fix the measuring meter 16. Because the mounting boss 19 is in a straight line shape, the clamping positions of the two clamping parts 21 are adjusted along the length direction of the mounting boss 19, so that the distance between the measuring meter 16 and the plane 26 to be measured can be changed, and the measuring head 18 can better touch the plane 26 to be measured; the area measured by the measuring meter 16 can also be adjusted by the second mounting hole 13.

Before the tool is used, the zero calibration can be carried out on each measuring meter 16 through a reference plane 24 such as a toughened glass plane and a marble plane reference plane 24 with known flatness, and a special calibration disc 23 can be provided as shown in fig. 8 for facilitating the zero calibration. When the tool is used for spoke flatness detection, as shown in fig. 9, the tool after zero alignment can be placed on the spoke surface, the measuring heads 18 of the measuring gauges 16 on each adjusting rod 9 are in contact with the plane 26 to be detected, namely the spoke surface, and the flatness value of the plane 26 to be detected can be obtained by comparing the data difference values on each measuring gauge 16. Under the condition that the number of measurement points is more in demand, the adjusting rod 9 can be shifted to switch the corresponding measurement points of each measurement meter 16, and the multi-point detection is performed so as to improve the detection accuracy. When measuring the spoke of the steel ring 25 with larger or smaller size, the adjusting rods 9 can be shifted in advance, so that each adjusting rod 9 is expanded or contracted to better correspond to the plane 26 to be measured. The tool is convenient to use and high in universality.

Example two

On the basis of the first embodiment, as shown in fig. 10, when the respective adjustment rods 9 are directly engaged for transmission, the number of the adjustment rods 9 is even, and the gear portions 15 of the respective adjustment rods 9 are sequentially engaged with each other along the arrangement direction of the adjustment rods 9. Through direct engagement transmission between each regulation pole 9, whole frock structure is comparatively compact, and centre piece 1 size is less, more is applicable to the less plane 26 of awaiting measuring of area, more is applicable to the less steel ring 25 detection of size specification.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims (10)

1. Flatness detection frock, its characterized in that: the measuring device comprises a center seat, a measuring meter, reference calibration pins and at least two adjusting rods which are arranged at intervals along the circumferential direction of the center seat, wherein each adjusting rod is directly or indirectly meshed with one end of the center seat to horizontally drive and is respectively connected with the center seat in a horizontal rotation mode, the reference calibration pins are connected to the bottoms of the center seat and/or the adjusting rods and can stably support the adjusting rods, the bottoms of the reference calibration pins are located on the same horizontal plane, the measuring meter is one or two of a dial indicator and a dial indicator, the measuring meter is detachably arranged on the adjusting rods, the measuring heads, which are in contact with a plane to be measured, of the measuring meter are arranged downwards, and the positions of the measuring heads are lower than the bottoms of the reference calibration pins.

2. The flatness inspection tool of claim 1, wherein: the adjusting rod comprises a gear part and a rod body part, the gear part is positioned at one end of the adjusting rod facing the center seat and is horizontally and rotatably connected with the center seat, and the measuring meter is arranged on the rod body part; when the adjusting rods are directly meshed for transmission, the number of the adjusting rods is even, and the gear parts of the adjusting rods are sequentially meshed with each other along the arrangement direction of the adjusting rods; when each adjusting rod is indirectly engaged for transmission, a transition gear is arranged between each adjusting rod and is respectively engaged with the transition gear.

3. The flatness inspection tool as claimed in claim 2, wherein: the body of rod portion includes first body of rod portion and second body of rod portion, first body of rod portion with form acute angle or right angle or obtuse angle contained angle between the second body of rod portion, second body of rod portion is located between first body of rod portion and the gear portion, the manometer install in first body of rod portion.

4. A flatness inspection tool according to claim 3, wherein: the center seat comprises an upper disc body and a lower disc body, a bolt and a bearing are fixedly arranged between the upper disc body and the lower disc body, the bolt is vertically arranged and fixedly connected with the upper disc body and the lower disc body, the bearing is sleeved outside the bolt, and the gear part is sleeved outside the bearing and limited between the upper disc body and the lower disc body.

5. The flatness inspection tool of claim 4, wherein: the top of the upper tray body is fixedly provided with a handle.

6. A flatness detection tool according to claim 1 or 2, characterized in that: the device also comprises at least two angle limiting pins, wherein the angle limiting pins are fixedly connected with the center seat and mutually space any two adjacent adjusting rods.

7. The flatness inspection tool of claim 6, wherein: the adjusting rods are uniformly distributed, and the angle limiting pins are uniformly distributed in an annular array.

8. A flatness detection tool according to claim 1 or 2, characterized in that: the measuring meter is one or more of a pointer type, a digital display type and a lever type measuring meter.

9. A flatness detection tool according to claim 1 or 2, characterized in that: the measuring meter is provided with a measuring rod which can stretch up and down, a plurality of first mounting holes are formed in the top of the adjusting rod, the first mounting holes are distributed at intervals along the length direction of the adjusting rod, the measuring rod is vertically penetrated, and the measuring rod can pass through the measuring rod.

10. A flatness detection tool according to claim 1 or 2, characterized in that: the measuring meter is a lever-type measuring meter, a linear installation boss is arranged on the outer side in a protruding mode, a plurality of second installation holes are formed in the side edge of the adjusting rod, the second installation holes are distributed at intervals along the length direction of the adjusting rod, fixing pins are arranged in the second installation holes, the tail ends of the fixing pins are exposed out of the second installation holes and extend to form two clamping portions, clamping rings are sleeved on the outer sides of the fixing pins, the two clamping portions are located on two sides of the installation boss relatively and close to the side wall surface of the installation boss, and the clamping rings are used for clamping the two clamping portions and enabling the two clamping portions to clamp and fix the installation boss.