Blade measuring machine

Abstract

The utility model discloses a blade measuring machine, and belongs to the technical field of measuring machinery. The bottom of the rotary table is rotationally connected with the top of the base; the three-coordinate measuring machines are arranged on the two sides of the rotary table, and the three-coordinate measuring machines are connected with the top of the base; the two three-coordinate measuring machines are respectively connected with an optical measuring head mechanism and a trigger measuring head mechanism, two different types of measuring heads are arranged on the same measuring machine, the two measuring heads can measure the blade at the same time, and the total element measurement of the blade can be completed under the condition that the blade is clamped at one time by matching with the rotary motion of the rotary table. And the blade detection efficiency and precision are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring machinery, and particularly relates to a blade measuring machine. Background Art

[0002] Blade parts are widely used in the fields of aviation, aerospace and navigation. Improving the quality of blades has a significant impact on these fields. With the rapid development of manufacturing, the machining accuracy and efficiency of blade parts have made great progress, which puts forward new requirements for their detection. Under the premise of ensuring measurement accuracy, there are also clear requirements for measurement efficiency.

[0003] The traditional blade measurement method is single probe measurement, that is, using one of the contact or non-contact measurement methods, and replacing between the contact and non-contact probes according to different measurement items. When replacing the probe, the measurement must be stopped, which greatly affects the measurement efficiency and the integrity of the entire measurement result, fundamentally limiting the measurement accuracy and efficiency of the blade, and becoming the weakest link in blade manufacturing. Content of the Utility Model

[0004] In order to solve the problems of the prior art, the utility model provides a blade measuring machine, including: a base;

[0005] A turntable, the bottom of the turntable is rotationally connected to the top of the base;

[0006] A coordinate measuring machine, the coordinate measuring machines are arranged on both sides of the turntable, and the coordinate measuring machines are connected to the top of the base;

[0007] An optical probe mechanism and a trigger probe mechanism are respectively connected to the two coordinate measuring machines.

[0008] Further, a chuck is arranged on the top of the turntable for clamping the blade to be measured.

[0009] Further, the coordinate measuring machine includes: an X-axis moving mechanism, a Y-axis moving structure and a Z-axis moving member mechanism;

[0010] The X-axis moving mechanism is connected to the top of the base;

[0011] The Z-axis moving mechanism is connected to the moving member of the X-axis moving mechanism;

[0012] The Y-axis moving mechanism is connected to the moving member of the Z-axis moving mechanism;

[0013] The optical probe mechanism and the trigger probe mechanism are respectively connected to the moving members of the Y-axis moving mechanisms on the coordinate measuring machines on both sides of the turntable.

[0014] Furthermore, the optical probe mechanism includes: a first probe mounting cylinder and an optical probe system;

[0015] One end of the first probe mounting cylinder is connected to the movable part of the Y-axis moving mechanism of the coordinate measuring machine on one side of the turntable;

[0016] The optical probe system is rotatably connected to the other end of the first probe mounting cylinder.

[0017] Furthermore, the touch probe mechanism includes: a second probe mounting cylinder and a touch probe system;

[0018] One end of the second probe mounting cylinder is connected to the movable part of the Y-axis moving mechanism of the coordinate measuring machine on the other side of the turntable;

[0019] The touch probe system is rotatably connected to the other end of the second probe mounting cylinder.

[0020] Furthermore, the optical probe system is composed of a first probe seat and a spectral confocal probe. The first probe seat is connected to the first probe mounting cylinder, and the spectral confocal probe is connected to the first probe seat. The model of the probe seat is PH10M, and the model of the spectral confocal probe is ISF2504-3.

[0021] Furthermore, the touch probe system is composed of a second probe seat and a contact scanning probe. The second probe seat is connected to the second probe mounting cylinder, and the contact scanning probe is connected to the second probe seat. The model of the contact scanning probe is SP25.

[0022] Advantages of the present utility model:

[0023] By setting two different types of measuring heads on the same measuring machine, and the two measuring heads can measure the blade simultaneously. Combined with the rotational movement of the turntable, the full-element measurement of the blade can be completed under the condition of one-time clamping of the blade, greatly improving the detection efficiency and accuracy of the blade.

[0024] According to the blade type and measurement items, contact measurement or non-contact measurement can be selected, or both can be selected simultaneously. The diverse, flexible selection and combination bring unprecedented convenience to blade measurement. Description of the Drawings

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic three-dimensional structure diagram of the blade measuring machine provided by the present utility model;

[0027] Figure 2 It is a schematic connection structure diagram of the first probe mounting cylinder provided by the present utility model.

[0028] Reference numerals: 1 is the X lead screw, 2 is the base, 3 is the X slide plate, 4 is the X motor, 5 is the Y motor, 6 is the Y slide plate, 7 is the Z slide plate, 8 is the Z guide rail, 9 is the Z lead screw, 10 is the Z motor, 11 is the Y guide rail, 12 is the Y lead screw, 13 is the first probe mounting cylinder, 14 is the first probe seat, 15 is the spectral confocal probe, 16 is the gear, 17 is the first probe seat, 18 is the scale line. Specific embodiments

[0029] To make the purpose, technical solutions and advantages of the present utility model clearer, the following will further describe the embodiments of the present utility model in detail with reference to the drawings.

[0030] See Figure 1 , a blade measuring machine, comprising: a base 2;

[0031] A turntable, the bottom of the turntable is rotatably connected to the top of the base 2;

[0032] A three-coordinate measuring machine, the three-coordinate measuring machines are arranged on both sides of the turntable, and the three-coordinate measuring machines are both connected to the top of the base 2;

[0033] An optical probe mechanism and a trigger probe mechanism are respectively connected to the two three-coordinate measuring machines.

[0034] Among them, the main invention point of the present application is that the blade measuring machine is set as a double-column cantilever structure, two measuring arms (i.e., three-coordinate measuring machines) are symmetrically arranged on both sides of the turntable, and the contact probe (i.e., the probe of the trigger probe mechanism) and the non-contact probe (i.e., the probe of the optical probe mechanism) are respectively arranged on the two measuring arms. In this way, two different types of probes are integrated on the same measuring machine, and the two probes can measure the blade at the same time. With the rotational movement of the turntable, the full-element measurement of the blade can be completed under the condition of one-time clamping of the blade, which greatly improves the detection efficiency and accuracy of the blade.

[0035] In some embodiments, a chuck is arranged on the top of the turntable for clamping the blade to be measured.

[0036] Among them, the turntable is driven by a driving mechanism, the driving mechanism can be a motor or other mechanisms, and the chuck can be a clamping mechanism such as a three-jaw chuck.

[0037] In some embodiments, the coordinate measuring machine includes: an X-axis moving mechanism, a Y-axis moving structure, and a Z-axis moving member mechanism;

[0038] The X-axis moving mechanism is connected to the top of the base 2;

[0039] The Z-axis moving mechanism is connected to the moving member of the X-axis moving mechanism;

[0040] The Y-axis moving mechanism is connected to the moving member of the Z-axis moving mechanism;

[0041] The optical probe mechanism and the trigger probe mechanism are respectively connected to the moving members of the Y-axis moving mechanism on both sides of the turntable of the coordinate measuring machine.

[0042] Among them, the X-axis moving mechanism includes: an X lead screw 1, an X guide rail, an X motor 4, and an X slide plate 3;

[0043] The X guide rail has a U-shaped structure. The bottom of the X guide rail is connected to the top of the base 2 (the X guide rail can be integrally formed with the base 2). Two support plates are arranged inside the X guide rail. The X lead screw 1 is arranged between the support plates. One end of the X lead screw 1 passes through the support plate and is connected to the output end of the X motor 4 through a coupling;

[0044] The X slide plate 3 is sleeved on the X lead screw 1, and the two are threadedly connected;

[0045] The Z-axis moving mechanism includes: a Z lead screw 9, a Z guide rail 8, a Z motor 10, and a Z slide plate 7;

[0046] The Z guide rail 8 has a U-shaped structure. One end of the Z guide rail 8 is connected to the top of the X slide plate 3. Two support plates are arranged inside the Z guide rail. The Z lead screw 9 is arranged between the support plates. One end of the Z lead screw 9 passes through the support plate and is connected to the output end of the Z motor 10 through a coupling;

[0047] The Z slide plate 7 is sleeved on the Z lead screw 9, and the two are threadedly connected;

[0048] The Y-axis moving mechanism includes: a Y lead screw 12, a Y guide rail 11, a Y motor 5, and a Y slide plate 6;

[0049] The Y guide rail 11 has a U-shaped structure. The bottom of the Y guide rail 11 is connected to the Z slide plate 7. Two support plates are arranged inside the Y guide rail. The Y lead screw 12 is arranged between the support plates. One end of the Y lead screw 12 passes through the support plate and is connected to the output end of the Y motor 5 through a coupling;

[0050] The Y slide plate 6 is sleeved on the Y lead screw 12, and the two are threadedly connected;

[0051] The optical probe mechanism and the trigger probe mechanism are respectively connected to the Y slide 6 on the coordinate measuring machine on both sides of the turntable;

[0052] The X motor 44 drives the X lead screw 1 to drive the X slide 3 to move back and forth. The Z guide rail 8 is fixed on the X slide 3. The Z motor 10 drives the Z lead screw 9 to drive the Z slide 7 to move up and down. The Y guide rail 11 is installed on the Z slide 7. The Y motor 5 drives the Y lead screw 12 to drive the Y slide 6 to move back and forth. The probe mechanism is installed on the Y slide 6. In this way, the probe mechanism can automatically operate back and forth, left and right, and up and down in the measurement space.

[0053] In some embodiments, the optical probe mechanism includes: a first probe mounting cylinder 13 and an optical probe system;

[0054] One end of the first probe mounting cylinder 13 is connected to the movable part of the Y-axis moving mechanism of the coordinate measuring machine on one side of the turntable;

[0055] The optical probe system is rotatably connected to the other end of the first probe mounting cylinder 13;

[0056] Among them, the optical probe system is composed of a first probe seat 14 and a spectral confocal probe 15. The probe seat is connected to the first probe mounting cylinder 13. The spectral confocal probe 15 is connected to the probe seat. The model of the first probe seat is PH10M, and the model of the spectral confocal probe is ISF2504-3.

[0057] In addition, a notch is provided at the other end of the first probe mounting cylinder 13. One end of the first probe seat 14 is sleeved inside the first probe mounting cylinder 13;

[0058] A gear 16 is arranged in the notch. A shaft is inserted into the gear 16. Installation plates connected to the first probe mounting cylinder 13 are arranged at both ends of the shaft. A thread groove 17 matching the gear 16 is arranged on the surface of the first probe seat 14. The thread groove 17 meshes with the gear 15;

[0059] By rotating the gear, the first probe mounting cylinder can be rotated 360°. In order to determine the rotation angle of the first probe mounting cylinder, a scale line 18 can be provided on the end surface of the first probe mounting cylinder.

[0060] In some embodiments, the trigger probe mechanism includes: a second probe mounting cylinder and a trigger probe system;

[0061] One end of the second probe mounting cylinder is connected to the movable part of the Y-axis moving mechanism of the coordinate measuring machine on the other side of the turntable;

[0062] The trigger probe system is rotatably connected to the other end of the second probe mounting cylinder;

[0063] Among them, the trigger probe system is composed of a second probe seat and a contact scanning probe. The probe seat is connected to the second probe mounting cylinder, the contact scanning probe is connected to the second probe seat, and the model of the contact scanning probe is SP25.

[0064] The first probe seat and the second probe seat have the same structure, and the first probe mounting cylinder and the second probe mounting cylinder have the same structure. Only the components of the optical probe mechanism are marked in this application.

[0065] In addition, before measurement, the probe system (i.e., the trigger probe system and the optical probe system) needs to be calibrated. There are two types of probes in this solution, contact and non-contact, and they need to be calibrated separately.

[0066] During calibration, first fix the standard ball, measure the standard ball with the contact scanning probe, determine the position of the standard ball and calibrate the contact scanning probe; after the contact scanning probe is calibrated, the standard ball remains stationary, and use the optical probe to measure the standard ball to calibrate the spectral confocal probe. At this point, the probe system is calibrated and can be directly applied during measurement without further calibration. During the calibration process, the position of the standard ball does not move, so that the coordinates on both sides of the turntable are unified to form a unified machine coordinate.

[0067] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A blade measuring machine, characterized in that: include: Base; A turntable, the bottom of which is rotatably connected to the top of the base; Three-coordinate measuring machines, which are arranged on both sides of the turntable and are connected to the top of the base; The two three-coordinate measuring machines are respectively connected with an optical probe mechanism and a trigger probe mechanism.

2. The blade measuring machine according to claim 1, characterized in that: A chuck is arranged on the top of the turntable for clamping the blade to be measured.

3. The blade measuring machine according to claim 1, characterized in that: The three-dimensional coordinate measuring machine includes: an X-axis moving mechanism, a Y-axis moving mechanism and a Z-axis moving mechanism; The X-axis moving mechanism is connected to the top of the base; The Z-axis moving mechanism is connected to the movable part of the X-axis moving mechanism; The Y-axis moving mechanism is connected to the movable part of the Z-axis moving mechanism; The optical probe mechanism and the trigger probe mechanism are respectively connected to the movable parts of the Y-axis moving mechanism on the three-coordinate measuring machine on both sides of the turntable.

4. The blade measuring machine according to claim 3, characterized in that: The optical probe mechanism comprises: a first probe mounting tube and an optical probe system; One end of the first probe mounting tube is connected to a movable part of a Y-axis moving mechanism of a three-dimensional coordinate measuring machine on one side of the turntable; The optical probe system is rotatably connected to the other end of the first probe mounting tube.

5. The blade measuring machine according to claim 3, characterized in that: The trigger probe mechanism comprises: a second probe mounting tube and a trigger probe system; One end of the second probe mounting cylinder is connected to a movable part of a Y-axis moving mechanism of a coordinate measuring machine on the other side of the turntable; The trigger probe system is rotatably connected to the other end of the second probe mounting tube.

6. The blade measuring machine according to claim 4, characterized in that: The optical probe system consists of a first probe base and a spectral confocal probe. The first probe base is connected to a first probe mounting tube, and the spectral confocal probe is connected to the first probe base.

7. The blade measuring machine according to claim 5, characterized in that: The trigger probe system consists of a second probe base and a contact scanning probe. The second probe base is connected to a second probe mounting tube, and the contact scanning probe is connected to the second probe base.

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