CN216012027U

CN216012027U - Calibration device of length measurement instrument

Info

Publication number: CN216012027U
Application number: CN202122059028.0U
Authority: CN
Inventors: 侯文忠; 杨静; 单龙勇
Original assignee: Yunnan Xiangrui Inspection Technology Co ltd
Current assignee: Yunnan Xiangrui Inspection Technology Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-03-11
Anticipated expiration: 2031-08-30

Abstract

The utility model discloses an inspection and calibration device of a length measuring instrument, which comprises a base and a support column, wherein one end inside the base is riveted with a first servo motor, the output end of the first servo motor is fixedly connected with a first screw rod through a speed reducer, a first movable seat is sleeved on the outer wall of the first screw rod in a threaded manner, pulleys are riveted on four corners at the bottom end of the first movable seat and are movably connected with the bottom end inside the base, the left side and the right side at the top end of the base are fixedly provided with the support column, a fixed rod is fixedly arranged inside the support column at the left side, a third screw rod is rotatably connected inside the support column at the right side through a bearing, a second movable seat is sleeved on the outer wall of the third screw rod in a threaded manner, the other end of the second movable seat is slidably sleeved with the fixed rod, the upper end of the second movable seat is slidably sleeved with a sliding seat, and the lower end of the second movable seat is fixedly provided with an acrylic transparent scale, the utility model has wider applicability, reduces the error and improves the calibration efficiency.

Description

Calibration device of length measurement instrument

Technical Field

The utility model relates to the technical field of calibration of length measuring instruments, in particular to a calibration device of a length measuring instrument.

Background

The length measuring apparatus commonly used in the mechanical industry mainly comprises a universal caliper, an internal micrometer and the like, and is widely applied to the fields of manufacturing industry, installation industry, scientific research institutions and the like, production enterprises or metrological verification departments need to carry out periodic verification and calibration on the length measuring apparatus according to the requirements of national verification regulations, and the accuracy of the length measuring apparatus determines the quality and the using effect of a product.

When the traditional length measuring device is used for checking and correcting, the length measuring device is required to be held by a worker to enable zero scale marks of the length measuring device to be aligned with zero scale marks of a standard ruler, then the scale marks are checked one by using a mark post, the physical strength of the worker is consumed in the process, errors are increased, and the checking and correcting efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a calibration device of a length measuring instrument, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a calibration device of a length measuring instrument comprises a base and a support column, wherein one end inside the base is riveted with a first servo motor, the output end of the first servo motor is fixedly connected with a first screw rod through a speed reducer, the other end of the first screw rod is rotatably connected with the other end of the base through a bearing, a first movable seat is sleeved on the outer wall of the first screw rod in a threaded manner, pulleys are riveted at four corners of the bottom end of the first movable seat, the pulleys are movably connected with the bottom end inside the base, the left side and the right side of the top end of the base are fixedly provided with the support column, a fixed rod is fixedly arranged inside the support column at the left side, a third threaded rod is rotatably connected inside the support column at the right side through a bearing, a second movable seat is sleeved on the outer wall of the third threaded rod in a threaded manner, and the other end of the second movable seat is slidably sleeved with the fixed rod, the upper end of the second movable seat is sleeved with a sliding seat in a sliding mode, and the lower end of the second movable seat is fixedly provided with an acrylic transparent scale.

Preferably, the top fixed mounting that first removal seat has the fixed plate, one side riveting of fixed plate has the quick-witted case, the inside fixed mounting of machine case has second servo motor, the output welding of second servo motor has first belt pulley, the belt has been cup jointed in the outer wall activity of first belt pulley, the second belt pulley has been cup jointed in the other end activity of belt, first belt pulley has all welded the second screw rod with the middle part of second belt pulley, and is two sets of the second screw rod all rotates with the fixed plate through the bearing to be connected, and is two sets of the other end and the movable plate screw thread of second screw rod cup joint.

Preferably, an infrared receiver is fixedly mounted at the left edge of the top end of the fixing plate; and a supporting plate is fixedly arranged on one side wall of the fixed plate opposite to the moving plate.

Preferably, the top end of the first movable seat extends to the outside of the top end of the base, and the top end of the base is provided with a channel matched with the first movable seat.

Preferably, the side walls of the two groups of supporting columns are provided with through openings matched with the second movable seat.

Preferably, the top end of the third threaded rod extends to the outside of the top end of the right side supporting column and is fixedly connected with the handle.

Preferably, the bottom edge of slide fixed mounting have with infrared receiver assorted infrared emitter, the bottom middle part riveting of slide has the laser lamp.

Preferably, one end of the second screw is welded with a limiting block.

Compared with the prior art, the utility model has the following beneficial effects: the utility model relates to a checking device of a length measuring instrument, which is characterized in that when in use, a second servo motor is started to drive a movable plate to approach a fixed plate to clamp the length measuring instrument, thereby liberating two hands, saving physical strength, avoiding looseness and interference with checking, being suitable for length measuring instruments with different widths, pushing a sliding seat to slide along a second movable seat, observing the position of a light beam of a laser lamp on an acrylic transparent scale, adjusting the sliding seat to a position corresponding to a zero scale mark of the acrylic transparent scale, driving a first movable seat to move left or right by starting a first servo motor until an infrared receiver receives a signal sent by an infrared transmitter, rapidly driving the zero scale mark of the length measuring instrument to align with the zero scale mark on the acrylic transparent scale through the mode, and avoiding time waste of manual adjustment, handheld slide drives the laser lamp and removes the seat and slide along the second, the light beam that sends by the laser lamp, it has the deviation to look over the transparent scale of ya keli and correspond the scale mark position with length measurement utensil, examine the school operation, make the second remove the seat and be close to length measurement utensil through rotating the third threaded rod, make distance between length measurement utensil and the transparent scale of ya keli reduce, be convenient for observe the light beam that the laser lamp sent, adaptable not co-altitude length measurement utensil, the suitability is wider, reduce the error, the efficiency of checking the school is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a perspective view of the connection of the base and the support post according to the present invention;

FIG. 3 is a schematic view of the internal structure of the present invention;

FIG. 4 is a side view of the fixed plate and the first movable base according to the present invention.

In the figure: 1. a base; 101. a first servo motor; 102. a first screw; 103. a first movable base; 104. a pulley; 2. a fixing plate; 201. an infrared receiver; 202. a support plate; 203. moving the plate; 3. a chassis; 301. a second servo motor; 302. a first pulley; 303. a belt; 304. a second pulley; 305. a second screw; 4. a support pillar; 401. fixing the rod; 402. a third screw; 5. a second movable base; 501. a slide base; 502. an acrylic transparent scale; 503. a laser light; 504. an infrared emitter.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

As shown in fig. 1, 2, 3 and 4, an inspection and calibration device for a length measuring instrument comprises a base 1 and a support column 4, wherein one end inside the base 1 is riveted with a first servo motor 101, the output end of the first servo motor 101 is fixedly connected with a first screw 102 through a reducer, the other end of the first screw 102 is rotatably connected with the other end of the base 1 through a bearing, a first movable seat 103 is sleeved on the outer wall of the first screw 102 in a threaded manner, pulleys 104 are riveted at four corners of the bottom end of the first movable seat 103, the pulleys 104 are movably connected with the bottom end inside the base 1, the support column 4 is fixedly installed at each of the left side and the right side of the top end of the base 1, a fixed rod 401 is fixedly installed inside the support column 4 at the left side, a third screw 402 is rotatably connected inside the support column 4 through a bearing, a second movable seat 5 is sleeved on the outer wall of the third screw 402 in a threaded manner, the other end of the second movable base 5 is slidably sleeved with the fixed rod 401, the upper end of the second movable base 5 is slidably sleeved with a sliding base 501, and the lower end of the second movable base 5 is fixedly provided with an acrylic transparent scale 502.

Referring to fig. 2 and 4, a fixed plate 2 is fixedly installed at the top end of the first moving seat 103, a case 3 is riveted to one side of the fixed plate 2, a second servo motor 301 is fixedly installed inside the case 3, a first belt pulley 302 is welded to the output end of the second servo motor 301, a belt 303 is movably sleeved on the outer wall of the first belt pulley 302, a second belt pulley 304 is movably sleeved on the other end of the belt 303, second screws 305 are welded to the middle portions of the first belt pulley 302 and the second belt pulley 304, the two groups of second screws 305 are rotatably connected with the fixed plate 2 through bearings, the other ends of the two groups of second screws 305 are threadedly sleeved with the moving plate 203, the second servo motor 301 is started to drive the two groups of second screws 305 to rotate, so that the moving plate 203 approaches the fixed plate 2, can press from both sides the length measurement utensil of equidimension not tightly, avoid taking place to rock, disturb and examine the school result.

Referring to fig. 4, an infrared receiver 201 is fixedly installed at the left edge of the top end of the fixing plate 2; a support plate 202 is fixedly mounted on one side wall of the fixed plate 2 opposite to the moving plate 203.

Referring to fig. 2 and 3, the top end of the first movable seat 103 extends to the outside of the top end of the base 1, and a channel matched with the first movable seat 103 is formed in the top end of the base 1, so that the length measuring instrument is driven to move left and right to perform zero scale line alignment, and the reduction of calibration efficiency due to manual adjustment is avoided.

Referring to fig. 2 and 3, the sidewalls of the two sets of supporting posts 4 are both provided with through holes matching with the second movable base 5.

Referring to fig. 1 and 2 and fig. 3, the top end of the third screw 402 extends to the outside of the top end of the right supporting column 4 and is fixedly connected with the handle, so that the third screw 402 can be rotated to adjust the height of the second movable base 5, and the calibration error is reduced.

Referring to fig. 1, an infrared emitter 504 matched with the infrared receiver 201 is fixedly installed at the bottom edge of the sliding base 501, and a laser lamp 503 is riveted to the middle of the bottom of the sliding base 501, so that the length measuring device and the acrylic transparent ruler 502 can be aligned to zero scale line quickly.

Referring to fig. 4, a limiting block is welded to one end of the second screw 305.

It should be noted that, when the calibration device of the length measurement instrument is used, the length measurement instrument is placed at the top end of the supporting plate 202, so that the zero scale line of the length measurement instrument is attached to the infrared receiver 201, the first belt pulley 302 and the second belt pulley 304 are driven to rotate by the start of the second servo motor 301, so that the two groups of second screws 305 rotate to drive the moving plate 203 to approach the fixed plate 2 until the length measurement instrument is clamped, hands are released, the physical strength is saved, the calibration device is prevented from being interfered by looseness, the calibration device is suitable for length measurement instruments with different widths, the sliding seat 501 is pushed to slide along the upper end of the second movable seat 5, the sliding seat 501 drives the laser lamp 503 to be adjusted to the position corresponding to the zero scale line of the acrylic transparent scale 502 by observing the position of the light beam of the laser lamp 503 on the acrylic transparent scale 502, the infrared emitter 504 and the infrared receiver 201 are started, the first servo motor 101 is started to drive the first movable base 103 to move leftwards or rightwards, until the infrared receiver 201 receives a signal sent by the infrared transmitter 504, the work of the first servo motor 101 is stopped, in this way, the zero scale line of the length measuring instrument can be rapidly driven to align with the zero scale line on the acrylic transparent ruler 502, the waste time of manual adjustment is avoided, the hand-held sliding base 501 drives the laser lamp 503 to slide along the second movable base 5, the light beam sent by the laser lamp 503 checks whether the positions of the acrylic transparent ruler 502 and the corresponding scale lines of the length measuring instrument have deviation, the calibration operation is carried out, the second movable base 5 is enabled to approach the length measuring instrument by rotating the third screw 402, the device is adaptable to the length measuring instruments with different heights, and the distance between the length measuring instrument and the acrylic transparent ruler 502 is reduced, the light beam emitted by the laser lamp 503 can be observed conveniently, the error is reduced, and the calibration efficiency is improved.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a length measurement utensil examine school device, includes base (1) and support column (4), its characterized in that: a first servo motor (101) is riveted at one end inside the base (1), a first screw (102) is fixedly connected at the output end of the first servo motor (101) through a speed reducer, the other end of the first screw (102) is rotatably connected with the other end of the base (1) through a bearing, a first movable seat (103) is sleeved on the outer wall of the first screw (102) in a threaded manner, pulleys (104) are riveted at four corners of the bottom end of the first movable seat (103), the pulleys (104) are movably connected with the bottom end inside the base (1), supporting columns (4) are fixedly installed at the left side and the right side of the top end of the base (1), a fixed rod (401) is fixedly installed inside the supporting column (4) at the left side, a third screw (402) is rotatably connected inside the supporting column (4) through a bearing, and a second movable seat (5) is sleeved on the outer wall of the third screw (402) in a threaded manner, the other end that the second removed seat (5) and dead lever (401) slip and cup joint, the upper end that the second removed seat (5) slides and has cup jointed slide (501), the lower extreme fixed mounting that the second removed seat (5) has transparent scale of ya keli (502).

2. A calibration device for a length measuring instrument according to claim 1, wherein: the top fixed mounting of first removal seat (103) has fixed plate (2), one side riveting of fixed plate (2) has quick-witted case (3), the inside fixed mounting of machine case (3) has second servo motor (301), the output welding of second servo motor (301) has first belt pulley (302), belt (303) have been cup jointed in the outer wall activity of first belt pulley (302), second belt pulley (304) have been cup jointed in the other end activity of belt (303), second screw rod (305) have all been welded with the middle part of second belt pulley (304) in first belt pulley (302), and are two sets of second screw rod (305) all rotate with fixed plate (2) through the bearing and are connected, and are two sets of the other end and movable plate (203) screw-thread socket of second screw rod (305).

3. A calibration device for a length measuring instrument according to claim 2, wherein: an infrared receiver (201) is fixedly arranged at the left edge of the top end of the fixing plate (2); and a supporting plate (202) is fixedly arranged on one side wall of the fixed plate (2) opposite to the moving plate (203).

4. A calibration device for a length measuring instrument according to claim 1, wherein: the top of first removal seat (103) extends to the top outside of base (1), the passageway with first removal seat (103) assorted is seted up on the top of base (1).

5. A calibration device for a length measuring instrument according to claim 1, wherein: and the side walls of the two groups of supporting columns (4) are provided with through holes matched with the second movable seat (5).

6. A calibration device for a length measuring instrument according to claim 1, wherein: the top end of the third screw rod (402) extends to the outside of the top end of the right side supporting column (4) and is fixedly connected with the handle.

7. A calibration device for a length measuring instrument according to claim 3, wherein: the bottom edge of slide (501) fixedly mounted have with infrared receiver (201) assorted infrared emitter (504), the bottom middle part riveting of slide (501) has laser lamp (503).

8. A calibration device for a length measuring instrument according to claim 2, wherein: and one end of the second screw (305) is welded with a limiting block.