Device for measuring verticality of cylinder hole and shaft hole of cylinder seat of compressor

Abstract

The utility model discloses a verticality measuring device for a cylinder hole and a shaft hole of a compressor cylinder seat, which comprises a bottom plate, a positioning column used for being inserted into the cylinder hole is arranged on the bottom plate, and a measuring head used for being inserted into the shaft hole is further arranged on the bottom plate; a first spray head, a second spray head, a third spray head and a fourth spray head which are used for spraying detection gas are respectively arranged on the side wall of the measuring head; the spraying directions of the first nozzle and the third nozzle are located on the same straight line, and the spraying directions of the second nozzle and the fourth nozzle are located on the same straight line. The beneficial effects of the utility model are that the positioning column and the measuring head are respectively used for positioning the cylinder hole and the shaft hole of the compressor cylinder seat, pneumatic signals outputted by the first nozzle, the second nozzle, the third nozzle and the fourth nozzle are converted into electric signals, and a verticality detection result of the cylinder seat is outputted.

Description

Technical Field

[0001] The utility model relates to the field of compressor cylinder seat detection equipment, in particular to a compressor cylinder seat cylinder hole and shaft hole verticality measuring device. Background Art

[0002] The cylinder seat is the core component of the compressor. Before the product leaves the factory, the verticality of the cylinder hole and the shaft hole in the cylinder seat needs to be tested to ensure that the product is qualified. There are three main measurement methods at present: 1. Use a contact displacement sensor to measure the cylinder hole and the shaft hole respectively through the comparative measurement method, and then calculate the verticality between the two holes. This method can measure quickly, but the contact measurement is easy to leave measurement marks on the measured surface of the workpiece; 2. Use the three-coordinate point measurement method to measure the outer diameter. This measurement method can measure the verticality of the cylinder hole and the shaft hole of the part, but the measurement time is too long; 3. Use a positioning mandrel and a clamping device, first use the positioning mandrel busbar to locate the cylinder hole, then use a grouped tapered mandrel to insert into the shaft hole to simulate the center line of the shaft hole, and finally design a gauge to detect the height of the two ends of the tapered mandrel, so as to judge the verticality of the shaft hole and the cylinder hole. This measurement method has many measurement links and the overall measurement time is too long.

[0003] Currently, there is a lack of fast, accurate, non-contact dedicated equipment on production sites to detect this verticality parameter. Summary of the invention

[0004] The utility model aims to provide a compressor cylinder seat cylinder hole and shaft hole verticality measuring device, which can quickly measure the compressor cylinder seat cylinder hole and shaft hole verticality, and will not leave detection marks on the cylinder seat surface.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A compressor cylinder block cylinder hole and shaft hole verticality measuring device, comprising a bottom plate, a positioning column for inserting into the cylinder hole is arranged on the bottom plate, and a probe for inserting into the shaft hole is also arranged on the bottom plate;

[0007] The side walls of the probe are respectively provided with a first nozzle, a second nozzle, a third nozzle and a fourth nozzle for spraying the detection gas;

[0008] The first nozzle and the second nozzle form a group and are located on one side of the measuring head. The third nozzle and the fourth nozzle form a group and are located on the other side of the measuring head. The spraying directions of the first nozzle and the third nozzle are located on a straight line, and the spraying directions of the second nozzle and the fourth nozzle are located on a straight line.

[0009] Preferably, a positioning base plate is arranged on the base plate, a positioning movable plate which can move forward and backward is arranged on the positioning base plate, a positioning supporting plate is arranged on the positioning movable plate, and the positioning column is arranged on the positioning supporting plate.

[0010] Preferably, the positioning support plate is rotatably connected to a rotating rod via a rotating shaft, and a pressure head is provided on the rotating rod for positioning in cooperation with the cylinder seat.

[0011] Preferably, a lever for limiting the rotation angle of the rotating rod is provided on the positioning support plate;

[0012] A tension spring is arranged between the rotating rod and the positioning supporting plate.

[0013] Preferably, the positioning base plate is provided with a positioning guide rail for the positioning movable plate to move forward and backward;

[0014] The positioning bottom plate is provided with a positioning limit block for limiting the moving distance of the positioning movable plate.

[0015] Preferably, a first measuring bottom plate is arranged on the bottom plate, and a first measuring movable plate which can move left and right is arranged on the first measuring bottom plate;

[0016] The first measuring movable plate is provided with one side of an L-shaped plate, the other side of the L-shaped plate is provided with a second measuring base plate, the second measuring base plate is provided with a second measuring movable plate movable up and down, and the measuring head is provided on the second measuring movable plate.

[0017] Preferably, a handle is provided on the first measuring movable plate, and an adjustment block for limiting the moving distance of the handle is provided on the first measuring bottom plate.

[0018] Preferably, the positioning column has a positioning plane.

[0019] Preferably, the ends of the positioning column and the probe are both provided with protective caps.

[0020] Preferably, the bottom of the base plate is provided with feet.

[0021] The beneficial effects of the utility model are:

[0022] 1. The cylinder hole and shaft hole of the compressor cylinder seat are positioned respectively by the positioning column and the probe, and the pneumatic signals output by the first nozzle, the second nozzle, the third nozzle and the fourth nozzle are converted into electrical signals to output the verticality detection results of the cylinder seat.

[0023] 2. Through the positioning movable plate that moves forward and backward, the first measuring movable plate that moves left and right, and the second measuring movable plate that moves up and down, the workpiece to be measured can be easily loaded or taken out, and the probe can easily enter the shaft hole to detect the verticality.

[0024] 3. The ends of the positioning column and the probe are equipped with protective caps, which will not damage the inner surface when they are inserted into the cylinder hole and shaft hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional diagram of the utility model;

[0026] Figure 2 A three-dimensional diagram of the present invention from another angle;

[0027] Figure 3 A three-dimensional diagram of the utility model installed in a compressor cylinder seat;

[0028] Figure 4 is a stereogram of the probe;

[0029] Figure 5 This is a stereogram of the probe from another angle;

[0030] Figure 6 is a three-dimensional diagram of a compressor cylinder block;

[0031] Figure 7 This is a three-dimensional view of the compressor cylinder base from another angle.

[0032] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. DETAILED DESCRIPTION

[0033] The utility model is further described below in conjunction with the accompanying drawings. Example

[0034] like Figure 1 , Figure 4 — Figure 7 As shown, a compressor cylinder block cylinder bore and shaft hole perpendicularity measuring device according to an embodiment of the utility model comprises a base plate 1, a positioning column 10 for inserting into a cylinder bore 41 is provided on the base plate 1, and a probe 18 for inserting into a shaft hole 42 is also provided on the base plate 1;

[0035] The side walls of the probe 18 are respectively provided with a first nozzle 34, a second nozzle 35, a third nozzle 36 and a fourth nozzle 37 for spraying the detection gas;

[0036] The first nozzle 34 and the second nozzle 35 are a group located on one side of the measuring head 18, and the third nozzle 36 and the fourth nozzle 37 are a group located on the other side of the measuring head 18. The spraying directions of the first nozzle 34 and the third nozzle 36 are on a straight line, and the spraying directions of the second nozzle 35 and the fourth nozzle 37 are on a straight line.

[0037] The bottom plate 1 is provided with a positioning bottom plate 3, the positioning bottom plate 3 is provided with a positioning movable plate 4 that can move forward and backward, the positioning movable plate 4 is provided with a positioning support plate 5, and the positioning column 10 is provided on the positioning support plate 5. After the cylinder seat 40 is installed on the positioning column 10, when the probe 18 is inserted into the shaft hole 42, if the probe 18 cannot be inserted due to the front-back misalignment, the positioning movable plate 4 can be moved forward and backward to drive the positioning support plate 5, the positioning column 10, and the cylinder seat 40 to move forward and backward.

[0038] The positioning support plate 5 is rotatably connected to the rotating rod 8 through the rotating shaft 13. The rotating rod 8 is provided with a pressure head 9 that cooperates with the cylinder seat 40 for positioning. When the cylinder seat 40 is installed, the rotating rod 8 is first rotated to put it in, and then the pressure head 9 presses the cylinder seat 40 tightly to prevent it from rotating. The pressure head 9 is made of copper to prevent the cylinder seat 40 from being bumped and scratched.

[0039] A tension spring 24 is provided between the rotating rod 8 and the positioning support plate 5. After the cylinder seat 40 is installed, the tension spring 24 provides a pulling force so that the pressure head 9 is close to the cylinder seat 40 to tighten it.

[0040] The positioning column 10 has a positioning plane 14. By setting the positioning plane 14, when the pressure head 9 presses the cylinder seat 40 tightly, the inner wall of the cylinder hole 41 can be pressed against the two side lines of the positioning plane 14, further ensuring that the cylinder seat 40 will not rotate accidentally.

[0041] A lever 7 for limiting the rotation angle of the rotating rod 8 is provided on the positioning support plate 5; the lever 7 can not only prevent the rotating rod 8 from rotating too much to the right, but also serve as a force support point when the rotating rod 8 is rotated. The rotating rod 8 can be rotated by pinching the rotating rod 8 and the lever 7 with one hand at the same time.

[0042] like Figure 2 As shown, a positioning guide rail 30 is provided on the positioning base plate 3 for the positioning movable plate 4 to move forward and backward, so that the positioning movable plate 4 can move forward and backward smoothly.

[0043] A positioning limit block 6 for limiting the moving distance of the positioning movable plate 4 is arranged on the positioning base plate 3 to prevent the positioning movable plate 4 from moving too far and falling off the positioning base plate 3 .

[0044] A first measuring base plate 20 is provided on the base plate 1, and a first measuring movable plate 21 which can be moved left and right is provided on the first measuring base plate 20; when the cylinder seat 40 is installed on the positioning column 10 or removed from the positioning column 10, the first measuring base plate 20 must be pulled to the right first, and then moved to the left to insert the probe 18 into the shaft hole 42.

[0045] The first measuring movable plate 21 is provided with one side of the L-shaped plate 15, the second measuring bottom plate 16 is provided with the other side of the L-shaped plate 15, the second measuring movable plate 17 movable up and down is provided on the second measuring bottom plate 16, and the probe 18 is provided on the second measuring movable plate 17. During the process of inserting the probe 18 into the shaft hole 42, if the probe 18 cannot be inserted due to the up and down misalignment, the second measuring movable plate 17 can be moved up and down to drive the probe 18 to move up and down.

[0046] The second measuring base plate 16 is provided with a second measuring guide rail 32 for the second measuring movable plate 17 to move up and down, and the second measuring base plate 16 is provided with a second measuring stop block 33 for limiting the moving distance of the second measuring movable plate 17 .

[0047] The first measuring movable plate 21 is provided with a handle 23, and the first measuring movable plate 21 is pulled left and right by the handle 23. The first measuring bottom plate 20 is provided with an adjustment block 22 for limiting the moving distance of the handle 23.

[0048] The ends of the positioning column 10 and the probe 18 are both provided with protective caps 19 to prevent damage to the inner wall of the hole when the positioning column 10 and the probe 18 are inserted into the cylinder hole 41 or the shaft hole 42 .

[0049] The bottom of the base plate 1 is provided with a foot 2 .

[0050] When the utility model is in use, the input ends of the first nozzle 34, the second nozzle 35, the third nozzle 36 and the fourth nozzle 37 are connected to a gas source providing pure compressed gas, and the output ends of the first nozzle 34, the second nozzle 35, the third nozzle 36 and the fourth nozzle 37 are connected to a gas-to-electric converter, which can convert the air pressure signal into an electrical signal so as to output the verticality of the detected product in real time.

[0051] like Figure 3 As shown, during the inspection, the standard part (cylinder seat 40) is first placed, the positioning column 10 is inserted into the cylinder hole 41, and the probe 18 is inserted into the shaft hole 42. At this time, the first nozzle 34, the second nozzle 35, the third nozzle 36 and the fourth nozzle 37 spray gas, and the verticality signal is output through the gas-to-electric converter, which is the standard value; then the part to be tested (cylinder seat 40) is placed, and gas is sprayed through the first nozzle 34, the second nozzle 35, the third nozzle 36 and the fourth nozzle 37. The signal output by the gas-to-electric converter at this time is compared with the standard value, and the verticality value of the part to be tested can be obtained.

[0052] Through actual use verification, the device can be operated independently by one person and can complete the inspection of a part within 12 seconds, meeting the requirements of the manufacturing inspection cycle.

[0053] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the utility model. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the utility model are within the protection scope of the technical solution of the utility model.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection content of the present invention.

[0055] If the words "first", "second" and so on are used in this document to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of describing the utility model and simplifying the description. Unless otherwise stated, the above words have no special meaning.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein, but these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A compressor cylinder block cylinder bore and shaft hole verticality measuring device, comprising a bottom plate, characterized in that: The bottom plate is provided with a positioning column for inserting into the cylinder hole, and the bottom plate is also provided with a probe for inserting into the shaft hole; The side walls of the probe are respectively provided with a first nozzle, a second nozzle, a third nozzle and a fourth nozzle for spraying the detection gas; The first nozzle and the second nozzle form a group and are located on one side of the measuring head. The third nozzle and the fourth nozzle form a group and are located on the other side of the measuring head. The spraying directions of the first nozzle and the third nozzle are located on a straight line, and the spraying directions of the second nozzle and the fourth nozzle are located on a straight line.

2. The tool for measuring the perpendicularity between the cylinder bore and the shaft hole of a compressor cylinder block according to claim 1, characterized in that: The bottom plate is provided with a positioning bottom plate, the positioning bottom plate is provided with a positioning movable plate which can move forward and backward, the positioning movable plate is provided with a positioning supporting plate, and the positioning column is provided on the positioning supporting plate.

3. The tool for measuring the perpendicularity between the cylinder bore and the shaft hole of a compressor cylinder block according to claim 2, characterized in that: The positioning support plate is rotatably connected to the rotating rod through a rotating shaft, and a pressure head is arranged on the rotating rod to cooperate with the cylinder seat for positioning.

4. The tool for measuring the perpendicularity between the cylinder bore and the shaft hole of a compressor cylinder block according to claim 3, characterized in that: The positioning support plate is provided with a lever for limiting the rotation angle of the rotating rod; A tension spring is arranged between the rotating rod and the positioning supporting plate.

5. The tool for measuring the perpendicularity between the cylinder bore and the shaft hole of a compressor cylinder block according to claim 2, characterized in that: The positioning base plate is provided with a positioning guide rail for the positioning movable plate to move forward and backward; The positioning bottom plate is provided with a positioning limit block for limiting the moving distance of the positioning movable plate.

6. The tool for measuring the perpendicularity between the cylinder bore and the shaft hole of a compressor cylinder block according to claim 1, characterized in that: The bottom plate is provided with a first measuring bottom plate, and the first measuring bottom plate is provided with a first measuring movable plate which can move left and right; The first measuring movable plate is provided with one side of an L-shaped plate, the other side of the L-shaped plate is provided with a second measuring base plate, the second measuring base plate is provided with a second measuring movable plate movable up and down, and the measuring head is provided on the second measuring movable plate.

7. The tool for measuring the perpendicularity between the cylinder bore and the shaft hole of a compressor cylinder block according to claim 6, characterized in that: The first measuring movable plate is provided with a handle, and the first measuring bottom plate is provided with an adjustment block for limiting the moving distance of the handle.

8. The tool for measuring the perpendicularity between the cylinder bore and the shaft hole of a compressor cylinder block according to claim 1, characterized in that: The positioning column has a positioning plane.

9. The compressor cylinder block cylinder bore and shaft hole perpendicularity measuring instrument according to claim 1, characterized in that: The ends of the positioning column and the measuring head are both provided with protective caps.

10. The tool for measuring the perpendicularity between the cylinder bore and the shaft hole of a compressor cylinder block according to claim 1, characterized in that: The bottom of the base plate is provided with feet.

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