CN215847829U - Dial indicator calibration fixture - Google Patents
Dial indicator calibration fixture Download PDFInfo
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- CN215847829U CN215847829U CN202122469019.9U CN202122469019U CN215847829U CN 215847829 U CN215847829 U CN 215847829U CN 202122469019 U CN202122469019 U CN 202122469019U CN 215847829 U CN215847829 U CN 215847829U
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- fixedly connected
- rod
- glass pipe
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Abstract
The utility model discloses a dial indicator calibration fixture which comprises a base, wherein the top of the base is fixedly connected with a plurality of groups of glass tubes through supporting columns and is provided with a plurality of groups of clamping mechanisms for clamping a dial indicator, one side of each glass tube is provided with a measuring rod bayonet, the base is fixedly connected with a hydraulic cylinder, the hydraulic cylinder is connected with a hydraulic telescopic rod, the hydraulic telescopic rod is fixedly connected with a plurality of groups of push rods through a fixed rod, the push rods are in sliding connection with the glass tubes, the push rods extend into the glass tubes and are fixedly connected with first rubber plugs, the first rubber plugs and the glass tubes form a first cavity, hydraulic oil is loaded in the first cavity, the first cavity is communicated with a second cavity through holes, the second rubber plugs are connected with baffles through connecting rods, the second rubber plugs and the baffles are in sliding connection with the glass tubes, and the diameter of the first cavity is smaller than that of the second cavity. The dial indicator calibration fixture provided by the utility model can calibrate a plurality of dial indicators to be tested simultaneously, and improves the calibration precision of the dial indicators.
Description
Technical Field
The utility model relates to the technical field of metering detection, in particular to a dial indicator calibration clamp.
Background
The dial indicator is a meter-type universal length measuring tool manufactured by utilizing a precise rack and pinion mechanism. The measuring head is generally composed of a measuring head, a measuring rod, a shockproof spring, a rack, a gear, a hairspring, a round dial, a pointer and the like. The dial indicator needs to be calibrated during use.
When the prior art calibrates the dial indicator, the data calibration of the calibration point of the error of the dial indicator value and the return error is carried out by utilizing the hydraulic principle. However, when the prior art is used for calibrating the dial indicator, only one dial indicator can be calibrated at one time generally, the calibration efficiency is low, and the calibration precision of the dial indicator is to be improved.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects of the background art, the utility model provides the dial indicator calibration clamp which can calibrate a plurality of dial indicators to be tested simultaneously and improve the calibration precision of the dial indicators.
In order to achieve the above purpose, the utility model provides the following technical scheme: a dial indicator calibration fixture comprises a base, wherein the top of the base is fixedly connected with a plurality of groups of glass tubes through supporting columns and is provided with a plurality of groups of clamping mechanisms for clamping a dial indicator, one side of each glass tube is provided with a measuring rod bayonet, the top of the base is fixedly connected with a hydraulic cylinder, the hydraulic cylinder is connected with a hydraulic telescopic rod, the hydraulic telescopic rod is fixedly connected with a plurality of groups of push rods through fixing rods, the push rods are in sliding connection with the glass tubes, the push rods extend into the glass tubes and are fixedly connected with first rubber plugs, the first rubber plugs and the glass tubes form a first cavity, hydraulic oil is loaded in the first cavity, the first cavity is communicated with a second cavity through holes, the second cavity is formed by the glass tubes and the second rubber plugs, the second rubber plugs are connected with a baffle through connecting rods, the second rubber buffer the baffle with glass manages sliding connection, the diameter of first cavity is less than the diameter of second cavity.
Adopt above-mentioned scheme, during the calibration percentage table, it is intraductal to stretch into the glass with the measuring stick of percentage table through the measuring stick bayonet socket, then utilize fixture to press from both sides the percentage table tightly, then start the pneumatic cylinder, the pneumatic cylinder drives hydraulic telescoping rod and extends, push rod and first rubber buffer follow the telescopic link and move right, the hydraulic oil that bears in the first cavity passes through in the through-hole inflow second cavity, and then promote the second rubber buffer, connecting rod and baffle move right, give the measuring stick motive force of percentage table, thereby calibrate, because the diameter of first cavity is less than the diameter of second cavity, make the device can improve the calibration precision of percentage table, the multiunit fixture and the glass pipe of setting can calibrate a plurality of percentage tables that await measuring simultaneously.
Preferably, fixture includes splint, mount, pull rod, spring and fixed plate, mount fixed mounting in the top of base, sliding connection has two sets of pull rods on the mount, fixedly connected with fixed plate and splint on the pull rod, the cover is equipped with the spring on the pull rod, the one end of spring with mount fixed connection, the other end with fixed plate fixed connection.
By adopting the scheme, when the dial indicator is clamped by the clamping plates, the pull rods are firstly pulled to two sides to place the dial indicator between the clamping plates, then the pull rods are loosened, the spring is still compressed at the moment, and the spring extrudes the fixing plate and the clamping plates, so that the dial indicator is clamped.
Preferably, each group of clamping mechanisms is provided with two groups of clamping plates, one group of clamping plates is provided with a limiting plate, and the other group of clamping plates is provided with a limiting hole matched with the limiting plate.
Adopt above-mentioned scheme, when splint centre gripping percentage table, the limiting plate stretches into spacing downthehole, and the limiting plate can play limiting displacement to the percentage table, and the percentage table moves to the right when preventing the calibration.
Preferably, a rubber pad is arranged on the clamping plate.
Adopt above-mentioned scheme, the rubber pad of setting can prevent that splint from causing the damage to the percentage table.
Preferably, the measuring rod of the dial indicator extends into the glass tube from the measuring rod bayonet and abuts against the baffle.
Preferably, the surface of the glass tube is provided with scale marks.
Adopt above-mentioned scheme, can observe the displacement of baffle.
Preferably, the glass tube is provided with an oil inlet and an oil outlet, the oil inlet is communicated with the first cavity, and the oil outlet is communicated with the second cavity.
By adopting the scheme, the hydraulic oil enters the first cavity through the oil inlet, and after the calibration is completed, the hydraulic oil can be discharged from the oil outlet.
Preferably, valves are arranged on the oil inlet and the oil outlet.
Compared with the prior art, the utility model has the following beneficial effects:
(1) the multiple groups of glass tubes, the push rod, the first rubber plugs, the first cavity, the through holes, the second cavity, the second rubber plugs, the connecting rods, the baffle plates and the clamping mechanism can calibrate a plurality of dial indicators to be tested simultaneously.
(2) The diameter of the first cavity is smaller than that of the second cavity, so that the device can improve the calibration accuracy of the dial indicator.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is a schematic top view of the present invention.
Fig. 4 is an enlarged view of fig. 3 at position a.
In the figure: 1. a base; 2. a hydraulic cylinder; 3. a hydraulic telescopic rod; 4. a first rubber plug; 5. a first cavity; 6. a through hole; 7. a second cavity; 8. a second rubber plug; 9. a connecting rod; 10. a baffle plate; 11. a measuring rod bayonet; 12. a splint; 13. a fixed mount; 14. a glass tube; 15. fixing the rod; 16. a push rod; 17. a pillar; 18. a pull rod; 19. a spring; 20. a fixing plate; 21. a limiting plate; 22. an oil inlet; 23. and an oil outlet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the utility model provides a dial indicator calibration fixture, which comprises a base 1, wherein the top of the base 1 is fixedly connected with a plurality of groups of glass tubes 14 through pillars 17 and is provided with a plurality of groups of clamping mechanisms for clamping a dial indicator, a measuring rod bayonet 11 is arranged on one side of each glass tube 14, a hydraulic cylinder 2 is fixedly connected with the top of the base 1, the hydraulic cylinder 2 is connected with a hydraulic telescopic rod 3, the hydraulic telescopic rod 3 is fixedly connected with a plurality of groups of push rods 16 through fixing rods 15, the push rods 16 are slidably connected with the glass tubes 14, the push rods 16 extend into the glass tubes 14 and are fixedly connected with first rubber plugs 4, the first rubber plugs 4 and the glass tubes 14 form a first cavity 5, hydraulic oil is loaded in the first cavity 5, the first cavity 5 is communicated with a second cavity 7 through holes 6, the second cavity 7 is formed by the glass tubes 14 and second rubber plugs 8, the second rubber plugs 8 are connected with a baffle 10 through connecting rods 9, second rubber buffer 8, baffle 10 and glass pipe 14 sliding connection, the diameter of first cavity 5 is less than the diameter of second cavity 7.
During the calibration percentage table, the measuring stick with the percentage table passes through measuring stick bayonet 11 and stretches into in the glass pipe 14, then utilize fixture to press from both sides the percentage table tightly, then start hydraulic cylinder 2, hydraulic cylinder 2 drives hydraulic telescoping rod 3 and extends, push rod 16 and first rubber buffer 4 follow telescopic link 3 and move to the right, hydraulic oil that bears in the first cavity 5 passes through in 6 inflow second cavity 7 of through-hole, and then promote second rubber buffer 8, connecting rod 9 and baffle 10 move to the right, give the measuring stick driving force of percentage table, thereby calibrate, because the diameter of first cavity 5 is less than the diameter of second cavity 7, make the device can improve the calibration precision of percentage table, the multiunit fixture and the glass pipe 14 of setting can calibrate a plurality of percentage tables that await measuring simultaneously.
Referring to fig. 3-4, the clamping mechanism includes a clamping plate 12, a fixing frame 13, a pull rod 18, a spring 19 and a fixing plate 20, the fixing frame 13 is fixedly installed at the top of the base 1, the fixing frame 13 is connected with two groups of pull rods 18 in a sliding manner, the pull rod 18 is fixedly connected with the fixing plate 20 and the clamping plate 12, the pull rod 18 is sleeved with the spring 19, one end of the spring 19 is fixedly connected with the fixing frame 13, and the other end of the spring 19 is fixedly connected with the fixing plate 20.
When the dial indicator is clamped by the clamping plates 12, the pull rods 18 are pulled towards two sides firstly, the dial indicator is placed between the clamping plates 12, then the pull rods 18 are loosened, the springs 19 are still compressed at the moment, and the springs 19 press the fixing plates 20 and the clamping plates 12, so that the dial indicator is clamped.
With reference to fig. 4, each clamping mechanism is provided with two sets of clamping plates 12, one set of clamping plates 12 is provided with a limiting plate 21, and the other set of clamping plates 12 is provided with a limiting hole matched with the limiting plate 21.
When splint 12 centre gripping percentage table, limiting plate 21 stretches into spacing downthehole, and limiting plate 21 can play limiting displacement to the percentage table, and the percentage table removes to the right when preventing the calibration.
Referring to fig. 4, a rubber pad is arranged on the clamping plate 12, and the arranged rubber pad can prevent the clamping plate 12 from damaging the dial indicator.
Referring to fig. 2, the measuring rod of the dial indicator extends into the glass tube 14 from the measuring rod bayonet 11 and abuts against the baffle 10.
Referring to fig. 4, the surface of the glass tube 14 is provided with scale lines to enable observation of the displacement of the baffle 10.
Referring to fig. 2-3, the glass tube 14 is provided with an oil inlet 22 and an oil outlet 23, the oil inlet 22 is communicated with the first cavity 5, and the oil outlet 23 is communicated with the second cavity 7.
Hydraulic oil enters the first cavity 5 through the oil inlet 22, and after calibration is completed, the hydraulic oil can be discharged from the oil outlet 23.
Referring to fig. 3, valves are disposed on the oil inlet 22 and the oil outlet 23.
The working principle is as follows: when the dial indicator is calibrated, a measuring rod of the dial indicator extends into the glass tube 14 through the measuring rod bayonet 11, then the pull rods 18 are pulled towards two sides, the dial indicator is placed between the clamping plates 12, then the pull rods 18 are loosened, the springs 19 are still compressed, and the springs 19 extrude the fixing plate 20 and the clamping plates 12, so that the dial indicator is clamped;
after start hydraulic cylinder 2, pneumatic cylinder 2 drives hydraulic telescoping rod 3 and extends, push rod 16 and first rubber buffer 4 follow telescopic link 3 and move rightwards, the hydraulic oil that bears in the first cavity 5 passes through in through-hole 6 flows into second cavity 7, and then promote second rubber buffer 8, connecting rod 9 and baffle 10 move rightwards, give the measuring stick motive force of percentage table, thereby calibrate, the multiunit fixture and the glass pipe 14 that set up can calibrate a plurality of percentage tables that await measuring simultaneously, because the diameter of first cavity 5 is less than the diameter of second cavity 7, make the device can improve the calibration precision of percentage table.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a percentage table calibration anchor clamps, includes base (1), its characterized in that, pillar (17) fixedly connected with multiunit glass pipe (14) is passed through at the top of base (1) and be provided with the multiunit fixture that is used for pressing from both sides tight percentage table, one side of glass pipe (14) is provided with measuring stick bayonet socket (11), the top fixedly connected with pneumatic cylinder (2) of base (1), pneumatic cylinder (2) are connected with hydraulic telescoping rod (3), hydraulic telescoping rod (3) are through dead lever (15) fixedly connected with multiunit push rod (16), push rod (16) with glass pipe (14) sliding connection, push rod (16) stretch into the inside of glass pipe (14) and fixedly connected with first rubber buffer (4), first rubber buffer (4) with glass pipe (14) form first cavity (5), bear load on one's body hydraulic oil in first cavity (5), first cavity (5) have second cavity (7) through-hole (6) intercommunication, second cavity (7) by glass pipe (14) form with second rubber buffer (8), second rubber buffer (8) are connected with baffle (10) through connecting rod (9), second rubber buffer (8) baffle (10) with glass pipe (14) sliding connection, the diameter of first cavity (5) is less than the diameter of second cavity (7).
2. The dial indicator calibration fixture according to claim 1, wherein the clamping mechanism comprises a clamping plate (12), a fixing frame (13), a pull rod (18), a spring (19) and a fixing plate (20), the fixing frame (13) is fixedly installed at the top of the base (1), two groups of pull rods (18) are connected onto the fixing frame (13) in a sliding mode, the fixing plate (20) and the clamping plate (12) are fixedly connected onto the pull rod (18), the spring (19) is sleeved onto the pull rod (18), one end of the spring (19) is fixedly connected with the fixing frame (13), and the other end of the spring is fixedly connected with the fixing plate (20).
3. The dial indicator calibration fixture according to claim 2, wherein each clamping mechanism is provided with two sets of clamping plates (12), a limiting plate (21) is arranged on one clamping plate (12), and a limiting hole matched with the limiting plate (21) is arranged on the other clamping plate (12).
4. A dial indicator calibration jig according to claim 2, characterized in that a rubber pad is provided on the clamping plate (12).
5. A dial indicator calibration jig according to claim 1, characterized in that the measuring rod of the dial indicator protrudes from the measuring rod bayonet (11) into the glass tube (14) and abuts against the baffle (10).
6. A dial indicator calibration jig according to claim 1, characterized in that the surface of the glass tube (14) is provided with graduation marks.
7. The dial indicator calibration fixture according to claim 1, wherein the glass tube (14) is provided with an oil inlet (22) and an oil outlet (23), the oil inlet (22) is communicated with the first cavity (5), and the oil outlet (23) is communicated with the second cavity (7).
8. A dial indicator calibration jig according to claim 7, characterized in that valves are provided on the oil inlet (22) and the oil outlet (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122469019.9U CN215847829U (en) | 2021-10-13 | 2021-10-13 | Dial indicator calibration fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122469019.9U CN215847829U (en) | 2021-10-13 | 2021-10-13 | Dial indicator calibration fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215847829U true CN215847829U (en) | 2022-02-18 |
Family
ID=80259818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122469019.9U Active CN215847829U (en) | 2021-10-13 | 2021-10-13 | Dial indicator calibration fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215847829U (en) |
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2021
- 2021-10-13 CN CN202122469019.9U patent/CN215847829U/en active Active
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