CN210664885U

CN210664885U - Tool detection tool for detecting air tightness of air cylinder

Info

Publication number: CN210664885U
Application number: CN201921374174.9U
Authority: CN
Inventors: 王士贝; 王士伦
Original assignee: Ningbo Daxie Development Zone Huashan Machinery Co Ltd
Current assignee: Ningbo Daxie Development Zone Huashan Machinery Co Ltd
Priority date: 2019-08-22
Filing date: 2019-08-22
Publication date: 2020-06-02
Anticipated expiration: 2029-08-22

Abstract

The utility model discloses a tool checking fixture for detecting air tightness of a cylinder, which comprises a bottom plate and a tester, wherein a cylinder fixing clamp is arranged on the bottom plate, the cylinder fixing clamp comprises a four-jaw chuck and clamping pieces fixed on the four-jaw chuck, the clamping pieces are used for clamping the cylinder, a first cylinder is arranged on the side surface of the cylinder fixing clamp, the output end of the first cylinder faces to the central shaft of the four-jaw chuck, a gas adapter connected with the tester is connected on the output end of the first cylinder, an avoiding gap for the gas adapter to pass through is arranged on the clamping pieces, an end cover pressing plate capable of moving up and down is horizontally arranged above the cylinder fixing clamp, a gap for a cylinder piston rod to pass through is arranged on the end cover pressing plate, and the cylinder is fixed by the clamping pieces driven by the four-jaw chuck, so that the size range of the cylinder jacket diameter of the applicable cylinder, the applicability is wide.

Description

Tool detection tool for detecting air tightness of air cylinder

Technical Field

The utility model relates to a cylinder detects technical field, in particular to utensil is examined to frock for cylinder gas tightness detects.

Background

At present, chinese patent with publication number CN204758223U discloses a cylinder gas tightness detection tool for automobile exhaust auxiliary brake, including bottom plate and tester, be provided with the cylinder body fixing base on the bottom plate, set up the U-shaped notch that is used for supplying the air vent on the cylinder body to move from top to bottom on the lateral wall of cylinder body fixing base, one side that the cylinder body fixing base has the U-shaped notch is provided with cylinder one, be provided with the gaseous adapter that links to each other with the tester on the piston rod of cylinder one, gaseous adapter sets up with the U-shaped notch relatively, the top level of cylinder body fixing base is provided with the end cover clamp plate that can move from top to bottom, set up the breach that supplies the piston rod to. The utility model discloses the nut can be twisted at the outer end of piston rod in the in-process that the gas tightness detected at the cylinder gas tightness detection frock for the auxiliary brake of automobile exhaust, convenient operation, detection efficiency height.

This kind of cylinder gas tightness detects frock can only detect the cylinder of fixed diameter, if cylinder diameter when changing, need change and detect the frock, and application scope is less.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an utensil is examined to frock for cylinder gas tightness detects, it has extensive applicability advantage.

The above technical purpose of the present invention can be achieved by the following technical solutions:

the utility model provides an utensil is examined to frock for cylinder gas tightness detects, includes bottom plate and tester, install cylinder mounting fixture on the bottom plate, cylinder mounting fixture includes the four-jaw chuck and fixes the cramping piece on the four-jaw chuck, the cramping piece is used for the centre gripping cylinder, cylinder mounting fixture's side is provided with first cylinder, the output of first cylinder is towards the center pin of four-jaw chuck, be connected with the gas adapter that links to each other with the tester on the output of first cylinder, be provided with the breach of dodging that supplies the gas adapter to pass on the cramping piece, cylinder mounting fixture top level is provided with the end cover clamp plate that can move about from top to bottom, be equipped with the breach that stretches out that supplies cylinder piston rod to pass on the end cover clamp plate.

Further setting: the avoiding notch is U-shaped, the bottom plate is provided with a lifting seat, and the first air cylinder is fixed on the lifting seat.

Further setting: the side of dodging the mouth on the outer wall of holding piece is provided with first scale mark, the side of lift seat is provided with the scale, first cylinder upper end is provided with and is close to scale registration needle.

Further setting: the end cover pressing plate is vertically connected to the guide rod in a sliding mode, and a second air cylinder driving the end cover pressing plate to move up and down along the guide rod is arranged at the upper end of the guide rod.

Further setting: the end cover pressing plate comprises a plate body and two fixing baffle plates which are horizontally and rotatably connected to the plate body, and the fixing baffle plates are used for abutting against the air cylinder.

Further setting: the clamp plate is provided with a rotating shaft, the fixed baffle is rotatably connected with the rotating shaft, an external thread is arranged at the upper end of the rotating shaft, a fixed cap is connected to the rotating shaft through a thread, and the fixed cap is used for compressing and positioning the fixed baffle.

The utility model discloses following beneficial effect has:

1. the clamping sheets driven by the four-jaw chuck are used for fixing the cylinder, so that the diameter size range of the cylinder sleeve suitable for the cylinder is large, and the applicability is wide;

2. the position of an air inlet hole of the cylinder to be detected is read by utilizing the first scale line, and the height of the first cylinder is adjusted, so that the first cylinder can accurately connect the gas adapter to the air inlet hole of the cylinder to be detected, the structure is reasonable, and the air adapter is suitable for air inlet holes cylinders with different heights;

3. utilize rotatable fixed plate to adjust that stretch out the breach, guarantee that the fixed plate can contradict the upper surface of the cylinder that awaits measuring of different diameters.

Drawings

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

FIG. 2 is a schematic structural view of a cylinder fixing jig according to an embodiment.

In the figure, 1, a bottom plate; 2. a tester; 3. the cylinder fixes the clamp; 4. a four-jaw chuck; 5. a clamping piece; 6. a movable jaw; 7. a cylinder to be tested; 8. a lifting seat; 9. a first cylinder; 10. a gas adapter; 11. a first scale mark; 12. a graduated scale; 13. a number indicating needle; 14. a guide bar; 15. a second cylinder; 16. end cover pressing plates; 17. a plate body; 18. fixing a baffle plate; 19. a fixing cap; 20. avoiding the gap.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a tool checking fixture for detecting air tightness of an air cylinder is shown in figures 1 and 2 and comprises a bottom plate 1 and a tester 2 placed beside the bottom plate 1. Threaded connection has cylinder mounting fixture 3 on bottom plate 1, and cylinder mounting fixture 3 includes four-jaw chuck 4 and fixes clamping piece 5 on four-jaw chuck 4, and four-jaw chuck 4 includes chuck body and four movable jack catch 6, and the lower extreme of clamping piece 5 has the spread groove that supplies movable jack catch 6 to go into towards chuck body one end card, and the bottom that the bolt passed the spread groove is fixed with clamping piece 5 with 6 threaded connection of movable jack catch. One side of the clamping sheet 5 facing the center of the chuck body is provided with a positioning step abutting against the lower end of the cylinder 7 to be tested. The cross section of the clamping sheet 5 is in a mutually spliced circular ring shape, and one side of the clamping sheet 5, which faces the center of the chuck body, is coated with a wear-resistant rubber coating which is in contact with the surface of the cylinder 7 to be tested.

Referring to fig. 1 and 2, a lifting seat 8 is fixed on the bottom plate 1 at the side of the cylinder fixing clamp 3, a first cylinder 9 for fixing furniture facing the cylinder is fixed on the lifting seat 8, and an air adapter 10 communicated with the tester 2 is installed at the output end of the first cylinder 9. The first cylinder 9 is over against one of the clamping pieces 5, a U-shaped avoidance notch 20 is formed in the clamping piece 5 from top to bottom, a first scale mark 11 is arranged on the side face of the avoidance notch 20, and the position of an air inlet of the cylinder 7 to be measured is read through the first scale mark 11. The other vertical scale 12 that is fixed with of lift seat 8, the upper end of first cylinder 9 bonds horizontal registration indicator 13, and registration indicator 13's pointed end is close to scale 12, to the high registration of first cylinder 9, conveniently adjusts gas adapter 10 position. The lifting seat 8 is a screw rod type lifting seat 8, and a lifting handle for controlling the first air cylinder 9 to lift is arranged on the side surface of the lifting seat 8.

Referring to fig. 1, two guide rods 14 perpendicular to the bottom plate 1 are fixed on the side of the cylinder fixing clamp 3 facing the tester 2 of the bottom plate 1, a second cylinder 15 with an output end facing vertically downward is fixed at the top end of the guide rod 14, the output end of the second cylinder 15 is connected with a horizontal end cover pressing plate 16, and a guide hole for the guide rod 14 to pass through is formed in the end cover pressing plate 16. The end cover pressing plate 16 comprises a horizontal plate body 17, two symmetrical rotating shafts are arranged at one end, facing the cylinder fixing clamp 3, of the horizontal plate body 17, a fixing baffle 18 is horizontally and rotatably connected to the rotating shafts, external threads are arranged at the upper end of each rotating shaft, and a fixing cap 19 for pressing and positioning the fixing baffle 18 is in threaded connection with the upper end of each rotating shaft. The two fixed baffles 18 form a telescopic gap for the piston rod of the cylinder 7 to be tested to penetrate out.

During the use, according to the cylinder 7 size of awaiting measuring preconditioning clamping piece 5 interval earlier, make the cylinder 7 of awaiting measuring contradict with the location step on the clamping piece 5, and the inlet port of the cylinder 7 of awaiting measuring is located dodges breach 20 department, then adjusts four-jaw chuck 4, will await measuring cylinder 7 and press from both sides tightly. According to the reading of the first graduated scale 12, the lifting of the lifting seat 8 is adjusted, so that the output end of the first air cylinder 9 is over against the air inlet hole of the air cylinder 7 to be measured. The opening angle of the fixed baffle 18 is determined according to the diameter of the cylinder, the second cylinder 15 is driven, the fixed baffle 18 fixes the top end of the cylinder, then the first cylinder 9 is driven to connect the gas adapter 10 into the gas inlet hole of the cylinder 7 to be tested, and the tester 2 is used for detecting the gas tightness of the cylinder 7 to be tested.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

1. The utility model provides an utensil is examined to frock for cylinder gas tightness detects, includes bottom plate and tester, its characterized in that, install cylinder mounting fixture on the bottom plate, cylinder mounting fixture includes four-jaw chuck and fixes the cramping piece on four-jaw chuck, the cramping piece is used for the centre gripping cylinder, cylinder mounting fixture's side is provided with first cylinder, the output of first cylinder is towards the center pin of four-jaw chuck, be connected with the gas adapter that links to each other with the tester on the output of first cylinder, be provided with the breach of dodging that supplies the gas adapter to pass on the cramping piece, cylinder mounting fixture top level is provided with the end cover clamp plate that can move about from top to bottom, be equipped with the breach that supplies the cylinder piston rod to pass on the end cover clamp plate.

2. The tool detection tool for detecting the air tightness of the air cylinder according to claim 1, wherein the avoiding notch is U-shaped, the bottom plate is provided with a lifting seat, and the first air cylinder is fixed on the lifting seat.

3. The tool detection tool for detecting the air tightness of the air cylinder according to claim 2, wherein a first scale mark is arranged on the side surface of the avoiding opening on the outer wall of the clamping piece, a scale is arranged on the side surface of the lifting seat, and a number indicating needle close to the scale is arranged at the upper end of the first air cylinder.

4. The tool detection tool for detecting air tightness of the air cylinder according to claim 3, wherein a guide rod perpendicular to the bottom plate is connected to the bottom plate, the end cover pressing plate comprises a guide hole for the guide rod to pass through, the end cover pressing plate is vertically and slidably connected to the guide rod, and a second air cylinder for driving the end cover pressing plate to move up and down along the guide rod is arranged at the upper end of the guide rod.

5. The tool detection tool for detecting the air tightness of the air cylinder according to claim 4, wherein the end cover pressing plate comprises a plate body and two fixed baffle plates which are horizontally and rotatably connected to the plate body, and the fixed baffle plates are used for abutting against the air cylinder.

6. The tool detection tool for detecting the air tightness of the air cylinder according to claim 5, wherein a rotating shaft is arranged on the pressing plate, the fixed baffle is rotatably connected with the rotating shaft, an external thread is arranged at the upper end of the rotating shaft, a fixed cap is connected to the rotating shaft in a threaded manner, and the fixed cap is used for compressing and positioning the fixed baffle.