Special gauge for rapidly measuring verticality and roundness of cylinder hole of cylinder

Abstract

The utility model relates to a special gauge for rapidly measuring verticality and roundness of a cylinder hole of a cylinder, which comprises a bottom plate, a pull rod, a pressure head, a bearing, a positioning ring and a dial indicator, a first support plate and a second support plate which are arranged at an interval are fixed on the bottom plate, and the middle part of the pull rod is movably sleeved on the first support plate; the end, facing the second supporting plate, of the pull rod is fixedly connected with a pressing head, and a compression spring sleeving the pull rod is connected between the pressing head and the first supporting plate. The bearing is connected to the second supporting plate, and the positioning ring is fixedly arranged in an inner ring of the bearing in a sleeved mode. A guide rail is fixed on the bottom plate, a dial indicator frame is connected to the guide rail in a sliding mode through a sliding seat, the dial indicator is fixed on the dial indicator frame, and the dial indicator frame moves along the guide rail to drive the dial indicator to move in the direction close to or away from the positioning ring. Whether the perpendicularity and the roundness of the cylinder hole of the cylinder are qualified or not can be judged through one-time clamping, the detection process is convenient to operate, and detection and judgment are rapid, efficient and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a testing fixture technical field, concretely relates to a cylinder hole perpendicularity and roundness quick measurement special purpose testing fixture of cylinder. BACKGROUND

[0002] In prior art, the measurement of cylinder hole perpendicularity and roundness of cylinder is through three coordinate measurement data to confirm good product and poor product, and its efficiency is low and workload is big. SUMMARY

[0003] The utility model aims at overcoming the insufficient of prior art, and provides a cylinder hole perpendicularity and roundness quick measurement special purpose testing fixture of cylinder.

[0004] To realize above-mentioned purpose, the utility model adopts following technical scheme:

[0005] A cylinder hole perpendicularity and roundness quick measurement special purpose testing fixture of cylinder, including bottom plate, draw bar, pressure head, bearing, locating ring and dial gauge, the first support plate and second support plate of interval arrangement are fixed on the bottom plate, the middle part of draw bar is movably sleeved on the first support plate, and one end of draw bar is fixedly connected with pressure head towards the second support plate, and the compression spring that is sleeved on draw bar is connected between pressure head and first support plate;

[0006] The bearing is connected on the second support plate, and the locating ring is fixedly sleeved in the inner ring of bearing;

[0007] The guide rail is fixed on the bottom plate, and the table stand is slidably connected on the guide rail through the sliding seat, the dial gauge is fixed on the table stand, and the table stand moves along the guide rail to drive the dial gauge to move in the direction close to or away from the locating ring;

[0008] The cylindrical surface positioning sleeve on the outer side of cylinder hole part at the bottom of cylinder is sleeved in the locating ring, and the pressure head is pressed in the recess at the head of cylinder.

[0009] Further, one end of the pressure head has a threaded part, which is threadedly connected with the corresponding threaded hole on the pressure head.

[0010] Further, the other end of the draw bar is fixedly provided with a handle.

[0011] The utility model adopts above technical scheme, and has the beneficial effects of:

[0012] The utility model has the simple structure, and the perpendicularity and roundness of cylinder hole can be determined whether qualified through once clamping, the detection process is convenient to operate, and the detection and determination are rapid, efficient and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further explained in detail in combination with the drawings and specific embodiments:

[0014] Figure 1 The utility model discloses a structure schematic diagram. DETAILED DESCRIPTION

[0015] As Figure 1 The utility model discloses a cylinder's cylinder hole perpendicularity and roundness quick measurement special gauge, including bottom plate 1, draw bar 2, pressure head 3, bearing 4, positioning ring 5 and dial gauge 6, the first support plate 7 and second support plate 8 of interval setting are fixed on bottom plate 1, the middle part of draw bar 2 is movably sleeved on the first support plate 7, and one end of draw bar 2 is fixedly connected with pressure head 3 towards second support plate 8, and the other end of draw bar 2 is fixed with handle 9, and the compression spring 10 of being set on draw bar 2 is connected between pressure head 3 and the first support plate 7.

[0016] Bearing 4 is connected on second support plate 8, and the outer ring of bearing 4 is fixed on second support plate 8, and positioning ring 5 is fixedly sleeved in the inner ring of bearing 4 by screw connection.The rotation of positioning ring 5 can be realized through the above structure.

[0017] The guide rail 11 is fixed on bottom plate 1, and the table stand 12 is slidably connected on the guide rail 11 through sliding seat, and the dial gauge 6 is fixed on the table stand 12, and the position of dial gauge 6 on the table stand 12 is adjustable (the table stand 12 is cross structure, two supports are respectively provided with long strip-shaped hole, and the position of dial gauge can be adjusted by passing through two long strip-shaped holes and being locked and connected with nut through bolt). The table stand 12 moves along the guide rail 11 to drive the dial gauge 6 to move in the direction of approaching or moving away from positioning ring 5.

[0018] The one end of pressure head 3 has a threaded part, and the threaded part is threadedly connected with the corresponding threaded hole on pressure head 3.

[0019] When detecting, the cylindrical surface outside the cylinder hole part at the bottom of cylinder 13 is positioned and sleeved in positioning ring 5, and pressure head 3 is pressed in the groove at the head of cylinder 13.

[0020] Taking the flange surface of cylinder 13 as the reference, then the dial gauge 6 is pushed along the guide rail 11, and the needle of dial gauge 6 moves back and forth on the cylinder hole wall of cylinder 13, and the change of the needle is observed, if the needle is stable (the change of the value indicated by the needle is within the predetermined range), it is determined that the perpendicularity of the cylinder hole is qualified, otherwise it is regarded as defective. Taking the flange surface of cylinder 13 as the reference, after pushing and measuring, the cylinder hole of the measured cylinder 13 is rotated along bearing 4, and the change of the needle is observed, if the needle is stable (the change of the value indicated by the needle is within the predetermined range), it is determined that the roundness of the cylinder hole of cylinder 13 is qualified, otherwise it is regarded as defective.

[0021] The specific embodiment of the utility model is described above, but the person skilled in the art should understand that this is only an example, and the person skilled in the art can make various changes or modifications to this embodiment without departing from the principles and essence of the utility model, but these changes and modifications all fall within the protection scope of the utility model.

Claims

1. A special inspection tool for rapid measurement of cylinder bore perpendicularity and roundness, characterized in that: The device comprises a base plate, a pull rod, a pressure head, a bearing, a positioning ring and a micrometer, the base plate is fixed with first and second support plates arranged at intervals, the middle part of the pull rod is movably sleeved on the first support plate, one end of the pull rod towards the second support plate is fixedly connected with the pressure head, and a compression spring sleeved on the pull rod is connected between the pressure head and the first support plate; The bearing is connected on the second support plate, and the positioning ring is fixedly sleeved in the inner ring of the bearing; A guide rail is fixed on the base plate, a table frame is slidably connected on the guide rail through a sliding seat, the micrometer is fixed on the table frame, and the table frame moves along the guide rail to drive the micrometer to move towards or away from the positioning ring; A cylindrical surface outside the cylinder hole part of the bottom of the cylinder is sleeved in the positioning ring, and the pressure head is pressed in the groove of the head of the cylinder.

2. The verticality and roundness of the cylinder bore of a cylinder is quickly measured by a special gauge according to claim 1, characterized in that: One end of the pressure head is provided with a threaded part which is threadedly connected with a corresponding threaded hole on the pressure head.

3. The verticality and roundness measuring tool for cylinder bore of a cylinder according to claim 1, characterized in that: The other end of the pull rod is fixed with a handle.

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