CN212512841U

CN212512841U - External micrometer for calibrating measuring instrument

Info

Publication number: CN212512841U
Application number: CN202021622334.XU
Authority: CN
Inventors: 田涛; 王坤; 李树彦; 黄博增
Original assignee: Shandong Xinas Measurement And Testing Co ltd
Current assignee: Shandong Xinas Measurement And Testing Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-02-09
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses an external micrometer for calibration of a measuring instrument, which belongs to the technical field of measuring tools and comprises a frame and a ruler frame, wherein the ruler frame is tightly attached to three clamping rods, the clamping rods are fixedly connected to planet wheels, the planet wheels are meshed with a sun wheel and are connected with a gear ring, the outer side wall of the gear ring is fixedly connected with the inner side wall of a fixed disc, the planet wheels are rotatably connected to the fixed disc, the center of the fixed disc is rotatably connected with a damping rotating shaft, and the damping rotating shaft penetrates through the fixed disc and is fixedly connected with the sun wheel; when the micrometer is not needed, the top of the clamping rod is attached to the micrometer frame, the damping rotating shaft is rotated, the sun wheel is driven to rotate, the sun wheel is connected with the planet wheel in a meshed mode, the planet wheel is driven to rotate, the clamping rod is clamped with the micrometer frame, the position of the fixing ring is determined, the position of the fixing ring is kept stable, and the damping spring and the soft rod can work normally at the moment.

Description

External micrometer for calibrating measuring instrument

Technical Field

The utility model belongs to the technical field of measuring tool, concretely relates to an external micrometer for measurement instrument calibration.

Background

A micrometer screw measurer, also known as micrometer, micrometer screw measurer, micrometer caliper, is a tool for measuring length more precisely than vernier caliper, and can measure length to 0.01mm accurately, its measuring range is several centimeters, and its part is made into screw thread whose screw pitch is 0.5mm, when it is rotated in the screw sleeve of fixed sleeve, it can be moved forward or backward, the movable sleeve and screw rod are connected into one body, its periphery is divided into 50 divisions, and the whole turn number of screw rod rotation is measured by the scribed lines on the fixed sleeve at intervals of 0.5mm, and the part less than one turn is measured by the scribed lines on the periphery of movable sleeve, and finally the measured result can be used for estimating one bit of decimal number.

At present, the micrometer screw card that takes place easily for common micrometer caliper dies, the reason that leads to this aspect of problem is mainly including the micrometer wet or the micrometer suffers to collide with and beat etc. at first, if the micrometer is put in moist place for a long time, the lead screw that probably will lead to the micrometer screw rod rusts with the three lamella nut cooperation positions at spiro union axle sleeve position, moreover, this also can lead to the micrometer screw rod and also begins to rust with micrometer frame unthreaded hole combination position, has certain drawback.

Disclosure of Invention

An object of the utility model is to provide an external micrometer for measuring instrument calibration to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an outside micrometer for calibrating a measuring instrument comprises a frame and a micrometer frame, wherein the micrometer frame is clung to three clamping rods, the clamping rods are fixedly connected to a planet wheel, the planet wheel is meshed with the sun wheel, the planet wheel is also meshed with the gear ring, the outer side wall of the gear ring is fixedly connected with the inner side wall of the fixed disc, the planet wheel is rotationally connected to a fixed disk, the center of the fixed disk is rotationally connected with a damping rotating shaft, the damping rotating shaft penetrates through the fixed disc and is fixedly connected with the sun wheel, the outer side wall of the fixed disc is fixedly connected with the inner side wall of the fixed ring, the outer side wall of the fixing ring is fixedly connected with the outer side wall of the fixing sleeve, a sliding block is connected in the fixing sleeve in a sliding way, and the bottom rigid coupling of slider has the soft pole, the one end and the fixing base rigid coupling that the slider was kept away from to the soft pole, and the cover is equipped with damping spring on the soft pole, the fixing base rigid coupling is on the inside wall of contact ring.

As a preferred embodiment, one end of the frame, which is far away from the ruler frame, is clamped with an upper clamping block and a lower clamping block, a through groove is formed in the upper clamping block, an external rotating wheel is connected in the through groove in a sliding mode, and a drying assembly is embedded in the lower clamping block.

As a preferred embodiment, the drying assembly comprises a fixed cover, and the fixed cover is provided with a filter screen, a drying sheet and a fan from outside to inside in sequence.

As a preferred embodiment, go up the clamp splice and keep away from the one end of chi frame with lower clamp splice and the lateral wall laminating of casing, and the casing is close to the position of last clamp splice and lower clamp splice and has seted up the spout, the one end that the chi frame was kept away from to last clamp splice and lower clamp splice all the rigid coupling has the dead lever, and the dead lever runs through the casing through the spout and extends to the casing inside, the other end and the connecting rod of dead lever rotate to be connected, and the other end of connecting rod and the one end rotation of flat pole are connected, and the other end of flat pole runs through the casing and extends to the outer rigid coupling of casing and has the pull block.

As a preferred embodiment, a sliding plate is fixedly connected to the leveling rod, a return spring is fixedly connected to a position of the sliding plate close to the pulling block, and the other end of the return spring is fixedly connected to the bottom of the inner side wall of the housing.

In a preferred embodiment, the material of the upper clamping block and the material of the lower clamping block are both transparent materials.

Compared with the prior art, the utility model provides a measuring tool includes following beneficial effect at least:

(1) when the micrometer is not needed, the top of the clamping rod is firstly attached to the micrometer frame, the damping rotating shaft is rotated to drive the sun wheel to rotate, the sun wheel is meshed with the planet wheel to drive the planet wheel to rotate, so that the clamping rod is clamped with the micrometer frame, the position of the fixing ring is determined, the position of the fixing ring is kept stable, and the damping spring and the soft rod can normally work;

(2) keep dry in the space that forms between making last clamp and the lower carriage through dry subassembly, prevent that the moisture that exists in the space makes the micrometer corrosion, causes the micrometer to be unable to use, utilizes the gas dust in the filter screen filtered air, through the moisture in the drying sheet adsorbed air, uses the flow of fan acceleration air simultaneously, reduces the emergence of corruption.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the drying assembly of the present invention;

FIG. 3 is a schematic structural view of the contact ring of the present invention;

fig. 4 is the structure diagram of the planet wheel of the present invention.

In the figure: 1. a frame; 2. a ruler frame; 3. a clamping lever; 4. a planet wheel; 5. a sun gear; 6. a ring gear; 7. a damping rotating shaft; 8. fixing the disc; 9. a fixing ring; 10. fixing a sleeve; 11. a slider; 12. a soft rod; 13. a fixed seat; 14. a damping spring; 15. a contact ring; 16. an upper clamping block; 17. a lower clamping block; 18. a through groove; 19. a drying assembly; 1901. a fixed cover; 1902. a filter screen; 1903. drying the slices; 1904. a fan; 20. a rotating wheel is externally connected; 21. a housing; 22. a chute; 23. fixing the rod; 24. a connecting rod; 25. a translation rod; 26. pulling the block; 27. a slide plate; 28. a return spring.

Detailed Description

The present invention will be further described with reference to the following examples.

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention. The condition in the embodiment can be further adjusted according to concrete condition the utility model discloses a it is right under the design prerequisite the utility model discloses a simple improvement of method all belongs to the utility model discloses the scope of claiming.

Referring to fig. 1-4, the present invention provides an outside micrometer for calibrating a measuring device, including a frame 1 and a scale frame 2, the scale frame 2 is tightly attached to three clamping rods 3, the clamping rods 3 are fixedly connected to a planetary wheel 4, the planetary wheel 4 is engaged with a sun wheel 5, the planetary wheel 4 is further engaged with a gear ring 6, the outer side wall of the gear ring 6 is fixedly connected to the inner side wall of a fixed disk 8, the planetary wheel 4 is rotatably connected to the fixed disk 8, the center of the fixed disk 8 is rotatably connected to a damping shaft 7, the damping shaft 7 penetrates through the fixed disk 8 and is fixedly connected to the sun wheel 5, the outer side wall of the fixed disk 8 is fixedly connected to the inner side wall of a fixed ring 9, the outer side wall of the fixed ring 9 is fixedly connected to the outer side wall of a fixed sleeve 10, a slider 11 is slidably connected to the fixed sleeve 10, a soft rod 12 is, a damping spring 14 is sleeved on the soft rod 12, and the fixed seat 13 is fixedly connected on the inner side wall of the contact ring 15 (see fig. 1, 3 and 4); when the micrometer is not needed, the top of the clamping rod 3 is firstly attached to the micrometer frame 2, the damping rotating shaft 7 is rotated, the sun wheel 5 is driven to rotate, the sun wheel 5 is meshed with the planet wheel 4 to be connected, the planet wheel 4 is driven to rotate, so that the clamping rod 3 is clamped with the micrometer frame 2, the position of the fixing ring 9 is determined, the position of the fixing ring 9 is kept stable, and the damping spring and the soft rod 12 can normally work at the moment.

An upper clamping block 16 and a lower clamping block 17 are clamped at one end of the frame 1, which is far away from the ruler frame 2, a through groove 18 is formed in the upper clamping block 16, an external rotating wheel 20 is connected in the through groove 18 in a sliding mode, and a drying assembly 19 is embedded in the lower clamping block 17 (see fig. 1 and 2); through having seted up logical groove 18 on the clamp splice 16, and lead to sliding connection in groove 18 and have external rotation wheel 20 for need not take off clamp splice 16 and clamp splice 17 down just can adjust the knob through external rotation wheel 20, make the micrometer calibrate the measurement utensil.

One ends, far away from the ruler frame 2, of the upper clamping block 16 and the lower clamping block 17 are attached to the outer side wall of the shell 21, sliding grooves 22 are formed in the positions, close to the upper clamping block 16 and the lower clamping block 17, of the shell 21, fixing rods 23 are fixedly connected to one ends, far away from the ruler frame 2, of the upper clamping block 16 and one ends, far away from the ruler frame 2, of the lower clamping block 17, and the upper clamping block 16 and the lower clamping block 17 are made of transparent materials (see fig. 1); the materials of the upper clamping block 16 and the lower clamping block 17 are transparent materials, and the scales on the knob can be observed when the external rotating wheel 20 is rotated through the transparent materials, so that the whole structure is reasonable.

The fixing rod 23 penetrates through the shell 21 through the sliding groove 22 and extends into the shell 21, the other end of the fixing rod 23 is rotatably connected with the connecting rod 24, the other end of the connecting rod 24 is rotatably connected with one end of the translational rod 25, and the other end of the translational rod 25 penetrates through the shell 21 and extends out of the shell 21 to be fixedly connected with a pull block 26 (see fig. 1); by pulling the pull block 26, the slide plate 27 moves towards the inside of the housing 21 by overcoming the damping effect of the return spring 28, and the two connecting rods 24 are driven to move towards the inside of the housing 21, so that the two fixing rods 23 are mutually separated to drive the upper clamping block 16 and the lower clamping block 17 to be separated, so that the frame 1 can be smoothly taken out, and the cleaning effect of the whole device is facilitated.

A sliding plate 27 is fixedly connected to the translation rod 25, a return spring 28 is fixedly connected to the sliding plate 27 at a position close to the pull block 26, and the other end of the return spring 28 is fixedly connected to the bottom of the inner side wall of the housing 21 (see fig. 1); make under normal condition through reset spring 28, go up clamp splice 16 and keep hugging closely with lower clamp splice 17 for the frame 1 is kept away from the one end of chi frame 2 and is in a inclosed environment, makes external environment be difficult to disturb frame 1, avoids the micrometer corrosion.

The drying assembly 19 includes a fixed cover 1901, the fixed cover 1901 is sequentially provided with a filter screen 1902, a drying sheet 1903 and a fan 1904 from outside to inside (see fig. 1 and 2); make through dry subassembly 19 and keep dry in the space that forms between the upper clamp body and the lower carriage body, prevent that the moisture that exists in the space makes the micrometer corrosion, causes the micrometer to be unable to use, utilizes the gas dust in the filter air of filter screen 1902, through the moisture in dry sheet 1903 adsorption air, uses the flow of fan 1904 acceleration air simultaneously, reduces the emergence of corruption.

When the device is used, the whole device is assembled firstly, when a micrometer is not needed, the top of the clamping rod 3 is firstly attached to the micrometer frame 2, the damping rotating shaft 7 is rotated to drive the sun gear 5 to rotate, the sun gear 5 is meshed with the planet gear 4 to drive the planet gear 4 to rotate, so that the clamping rod 3 is clamped with the micrometer frame 2, the position of the fixing ring 9 is determined, the position of the fixing ring 9 is kept stable, at the moment, the damping spring and the soft rod 12 can work normally, when collision occurs, the contact ring 15 drives the soft rod 12 on the fixing seat 13 to move, the sliding block 11 moves towards the fixing sleeve 10, meanwhile, under the action of the damping spring 14, the influence of vibration is reduced, the materials of the upper clamping block 16 and the lower clamping block 17 are transparent materials, the scale on the knob can be observed when the external rotating wheel 20 is rotated through the transparent materials, so that the whole structure is reasonable, through the through groove 18 formed on the upper clamping block 16 and the external rotating wheel 20 connected in the through groove 18 in a sliding manner, the knob can be adjusted through the external rotating wheel 20 without taking down the upper clamping block 16 and the lower clamping block 17, so that the micrometer calibrates a measuring instrument, through pulling the pull block 26, the slide plate 27 is moved towards the inside of the shell 21 by overcoming the damping effect of the reset spring 28, and simultaneously the two connecting rods 24 are driven to move towards the inside of the shell 21, so that the two fixing rods 23 are mutually separated to drive the upper clamping block 16 and the lower clamping block 17 to be separated to enable the frame 1 to be smoothly taken out, the cleaning effect of the whole device is facilitated, the space formed between the upper clamping block and the lower frame is kept dry through the drying assembly 19, the moisture in the space is prevented from causing the micrometer to be corroded, the micrometer to be prevented from being used, the gas in the air is filtered by the filter screen 1902, the drying sheet 1903 adsorbs moisture in the air, and the fan 1904 accelerates the flow of the air, thereby reducing the occurrence of corrosion.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An outside micrometer for calibration of a measuring instrument, comprising a frame (1) and a scale frame (2), characterized in that: the ruler frame (2) is tightly attached to three clamping rods (3), the clamping rods (3) are fixedly connected to planet wheels (4), the planet wheels (4) are meshed with sun wheels (5) and are connected, the planet wheels (4) are further meshed with gear rings (6), outer side walls of the gear rings (6) are fixedly connected to inner side walls of fixed disks (8), the planet wheels (4) are rotatably connected to the fixed disks (8), the centers of the fixed disks (8) are rotatably connected with damping rotating shafts (7), the damping rotating shafts (7) penetrate through the fixed disks (8) and are fixedly connected with the sun wheels (5), outer side walls of the fixed disks (8) are fixedly connected to inner side walls of fixed rings (9), outer side walls of the fixed rings (9) are fixedly connected to outer side walls of the fixed sleeves (10), sliding blocks (11) are slidably connected to the fixed sleeves (10), and soft rods (12) are fixedly connected to the bottoms of the sliding blocks, one end of the soft rod (12) far away from the sliding block (11) is fixedly connected with the fixed seat (13), the soft rod (12) is sleeved with a damping spring (14), and the fixed seat (13) is fixedly connected on the inner side wall of the contact ring (15).

2. An outside micrometer for calibration of a measuring instrument according to claim 1, wherein: one end of the frame (1) far away from the ruler frame (2) is provided with an upper clamping block (16) and a lower clamping block (17) in a clamping mode, the upper clamping block (16) is provided with a through groove (18), the through groove (18) is internally connected with an external rotating wheel (20) in a sliding mode, and the lower clamping block (17) is embedded with a drying assembly (19).

3. An outside micrometer for calibration of a measuring instrument according to claim 2, wherein: drying assembly (19) are including fixed cover (1901), fixed cover (1901) have installed filter screen (1902), dry piece (1903) and fan (1904) by outside in proper order.

4. An outside micrometer for calibration of a measuring instrument according to claim 2, wherein: go up clamp splice (16) and lower clamp splice (17) and keep away from the one end of chi frame (2) and the lateral wall laminating of casing (21), and casing (21) are close to the position of last clamp splice (16) and lower clamp splice (17) and have seted up spout (22), it has dead lever (23) to go up the one end that chi frame (2) were kept away from in clamp splice (16) and lower clamp splice (17) all the rigid coupling, and dead lever (23) run through casing (21) through spout (22) and extend to casing (21) inside, the other end and the connecting rod (24) of dead lever (23) rotate to be connected, and the other end of connecting rod (24) rotates with the one end of tie rod (25) to be connected, and the other end of tie rod (25) runs through casing (21) and extends to the outer rigid coupling of casing (21) and has pull block (26).

5. An outside micrometer for calibration of a measuring instrument according to claim 4, wherein: the translation rod (25) is fixedly connected with a sliding plate (27), the sliding plate (27) is fixedly connected with a return spring (28) at a position close to the pulling block (26), and the other end of the return spring (28) is fixedly connected with the bottom of the inner side wall of the shell (21).

6. An outside micrometer for calibration of a measuring instrument according to claim 2, wherein: the materials of the upper clamping block (16) and the lower clamping block (17) are transparent materials.