Six-surface measurement cradle device

Abstract

The invention, which relates to the technical field of device measurement, discloses a six-surface measurement cradle device comprising a clamp, a first driving mechanism and a second driving mechanism. The clamp is provided with a hollow area and is used for fixing a to-be-tested piece, and the to-be-tested piece is opposite to the hollow area and is arranged on one side of the hollow area; the first driving mechanism is in transmission connection with the clamp and can drive the clamp to turn over vertically upwards along the first axis, so that different side surfaces of the to-be-measured piece are used for being opposite to the measuring element and the bottom plate can face the light-emitting plate; and the second driving mechanism is in transmission connection with the first driving mechanism and can drive the first driving mechanism to overturn vertically upwards along a second axis, so that different side surfaces of the to-be-measured piece are used for being opposite to the measuring element, and the first axis is perpendicular to the second axis. According to the six-surface measurement cradle device provided by the invention, the measurement efficiency and accuracy are improved.

Description

Technical Field

[0001] This invention relates to the field of measurement technology, and in particular to a six-sided measuring cradle device. Background Technology

[0002] Mechanical products can often be simplified to a hexahedron, and measuring their geometric dimensions frequently involves measuring all six faces. Therefore, the measuring device must be sufficiently flexible, such as a six-axis robot-based system, or require multiple clamping, flipping, and repositioning of the product to complete the measurement of all six faces. While multi-joint robot-based measurement systems are flexible, they also reduce measurement accuracy. Currently, fixed-table measurement remains the most accurate method. However, due to the limitations of its structure, tabletop measurement often requires multiple clamping operations to complete the six-face measurement. These multiple clamping operations are not only time-consuming but also increase sources of error. Summary of the Invention

[0003] The purpose of this invention is to provide a six-sided measuring cradle device to solve the problems existing in the prior art and improve measurement efficiency and accuracy.

[0004] To achieve the above objectives, the present invention provides the following solution: This invention provides a six-sided measuring cradle device, including a clamp, a first driving mechanism, and a second driving mechanism. The clamp has a hollow area for fixing a workpiece to be measured, which is opposite to and placed on one side of the hollow area. The first driving mechanism is driven by the clamp and can drive the clamp to rotate vertically along a first axis so that different sides of the workpiece to be measured are opposite to the measuring element. The second driving mechanism is driven by the first driving mechanism and can drive the first driving mechanism to rotate vertically along a second axis so that different sides of the workpiece to be measured are opposite to the measuring element. The first axis and the second axis are perpendicular to each other.

[0005] Preferably, the fixture has a plurality of positioning blocks distributed circumferentially near the edge of the hollow area. The positioning blocks are used to circumferentially position the workpiece to be tested so that the workpiece to be tested is placed on one side of the hollow area.

[0006] Preferably, the fixture has multiple mounting positions circumferentially arranged near the edge of the hollow area, and each positioning block can be detachably connected to one of the mounting positions, and the positioning area of ​​the test piece can be adjusted by connecting to different mounting positions.

[0007] Preferably, the device further includes a clamping mechanism disposed on the fixture, the clamping mechanism being capable of clamping against a local peripheral surface of the workpiece to be tested.

[0008] Preferably, the first driving mechanism includes a first frame and a first driving component. The first frame is connected to the second driving mechanism, the first driving component is disposed on the first frame, and the first driving component is connected to the clamp for transmission. The first driving component can drive the clamp to rotate vertically around the first axis.

[0009] Preferably, the second drive mechanism includes a second frame and a second drive assembly. The first drive mechanism is fixedly mounted on the second frame, and the second drive assembly is connected to the second frame. The second drive assembly can drive the second frame to rotate, thereby causing the first drive mechanism and the clamp to rotate vertically around the second axis.

[0010] Preferably, the second frame is provided with a light-emitting plate, which is positioned opposite to and above the measuring element. The first driving mechanism can drive the fixture to rotate around the first axis so that different sides of the workpiece to be measured are opposite to the light-emitting plate and can be measured by the measuring element.

[0011] Preferably, it further includes a support frame for placing the measuring element, the second frame being rotatably mounted on the support frame, and the second drive assembly being mounted on the support frame and capable of driving the second frame to rotate vertically relative to the support frame along the second axis.

[0012] Preferably, it further includes a limiting mechanism disposed on the second driving mechanism, the limiting mechanism being used to limit the flipping drive of the first driving mechanism on the fixture.

[0013] Preferably, the limiting mechanism is disposed on both sides of the clamp along a direction parallel to the first axis.

[0014] The present invention achieves the following technical effects compared to the prior art: The six-sided measuring cradle device provided by this invention places the workpiece to be measured on a fixture, opposite to a cutout area, allowing the measuring element to measure the side of the workpiece closest to the fixture through the cutout area. Furthermore, placing the workpiece on one side of the cutout area prevents excessive obstruction of its peripheral surfaces by the fixture. The first driving mechanism performs a vertical flipping drive relative to a first axis, and the second driving mechanism performs a vertical flipping drive relative to a second axis. Since the first and second axes are perpendicular, the first and second driving mechanisms can respectively drive different sides to face the measuring element, thus enabling measurement of all sides of the workpiece relative to the measuring element. This eliminates the need for repeated clamping of the workpiece, improving measurement efficiency and accuracy. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a one-sided isometric view of the six-sided measuring cradle device provided in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the six-sided measuring cradle device provided in Embodiment 1 of the present invention from another orientation (with the test piece removed).

[0017] In the diagram: 1-Clamp; 11-Hollowed-out area; 12-Positioning block; 13-Mounting position; 2-Test piece; 3-First drive mechanism; 31-First frame; 32-First drive assembly; 33-First cradle frame; 34-First support column; 4-Second drive mechanism; 41-Second frame; 42-Second drive assembly; 43-Second cradle frame; 44-Second support column; 5-Clamping mechanism; 6-Light-emitting plate; 7-Support frame; 71-Base plate; 72-Side support column; 8-Limiting mechanism. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] The purpose of this invention is to provide a six-sided measuring cradle device to solve the problems existing in the prior art and improve measurement efficiency and accuracy.

[0020] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1 This embodiment provides a six-sided measuring cradle device. Please refer to [link / reference]. Figure 1 and Figure 2The device includes a clamp 1, a first drive mechanism 3, and a second drive mechanism 4. The clamp 1 has a cutout area 11 and is used to fix the workpiece 2 to be measured. The workpiece 2 is opposite to the cutout area 11 and is placed on one side of the cutout area 11. The first drive mechanism 3 is driven to the clamp 1 and can drive the clamp 1 to rotate vertically upward along the first axis so that different sides of the workpiece 2 are used to face the measuring element. The second drive mechanism 4 is driven to the first drive mechanism 3 and can drive the first drive mechanism 3 to rotate vertically upward along the second axis so that different sides of the workpiece 2 are used to face the measuring element. The first axis and the second axis are set perpendicularly.

[0022] The test piece 2 is placed on the fixture 1, opposite to the cutout area 11, so that the measuring element can pass through the cutout area 11 to the side of the test piece 2 near the fixture 1. Figure 1 Measurements were taken from the lower middle side; additionally, the part to be measured 2 was placed on one side of the hollowed-out area 11. Figure 1 The upper and middle sides ensure that the peripheral side of the workpiece 2 is not excessively obstructed by the clamp 1. Moreover, the first drive mechanism 3 performs vertical flipping drive relative to the first axis, and the second drive mechanism 4 performs vertical flipping drive relative to the second axis. Since the first axis and the second axis are set perpendicularly, the first drive mechanism 3 and the second drive mechanism 4 can drive different sides to be opposite to the measuring element respectively. In this way, each side of the workpiece 2 can be opposite to the measuring element to achieve measurement; there is no need to repeatedly clamp the workpiece 2, which improves measurement efficiency and accuracy.

[0023] Specifically, in this embodiment, the first driving mechanism 3 can drive the clamp 1 to rotate 360° around the first axis, or rotate 180° in the forward and reverse directions, so that the upper and lower sides and the two long side end faces of the test piece 2 can be flipped to be opposite to the measuring element for measurement. The second driving mechanism 4 can drive the clamp 1 to rotate 90° in the forward and reverse directions around the second axis, so that the two short side end faces of the test piece 2 can be flipped to be opposite to the measuring element for measurement.

[0024] In the optional scheme of this embodiment, more preferably, a plurality of positioning blocks 12 are distributed circumferentially on the fixture 1 near the edge of the hollow area 11. The positioning blocks 12 are used to perform circumferential positioning of the workpiece 2 to be tested, so that the workpiece 2 to be tested is placed on one side of the hollow area 11.

[0025] In order to ensure that the test piece 2 is stably placed on one side of the hollow area 11, multiple positioning blocks 12 are used to suspend and support the test piece 2. Specifically, each positioning block 12 is provided with a positioning step. Through the clamping of multiple positioning blocks 12, the test piece 2 is stably placed on the positioning step. In addition, positioning columns can be used for positioning and cooperation, so that the positioning columns fit against the peripheral side of the test piece 2 for auxiliary positioning.

[0026] In the optional scheme of this embodiment, more preferably, a plurality of mounting positions 13 are provided on the fixture 1 around the edge of the hollow area 11. Each positioning block 12 can be detachably connected to a mounting position 13 and can be connected to different mounting positions 13 to adjust the positioning area of ​​the workpiece 2 to be tested.

[0027] Since the positioning block 12 partially obstructs the peripheral side of the workpiece 2 under test, in practical applications, the positioning block 12 should be kept away from obstructing the area to be tested as much as possible. Therefore, the positioning block 12 is designed to be detachably connected to the fixture 1, and multiple mounting positions 13 are provided around the fixture 1 to adjust the position of the positioning block 12, thereby adjusting the positioning area of ​​the workpiece 2 under test to avoid obstructing the measured features. Specifically, the mounting position 13 is set as a bolt hole, and the positioning block 12 can be connected to the mounting position 13 by bolts. In addition, the mounting position 13 can also be set as a snap hole, and the positioning block 12 is installed and fitted into the snap hole by snap-fit.

[0028] In the optional scheme of this embodiment, more preferably, the six-sided measuring cradle device provided in this embodiment further includes a clamping mechanism 5 disposed on the clamp 1, which can clamp the local peripheral side surface of the workpiece 2 to be measured.

[0029] In order to prevent the test piece 2 from falling during the flipping process, an additional clamping mechanism 5 is set to clamp the test piece 2 laterally; specifically, the clamping mechanism 5 is set as a clamping cylinder, which connects the air pipe and the wire through a slip ring to avoid entanglement during rotation; the clamping mechanism 5 is set to avoid the important measurement area of ​​the test piece 2.

[0030] In the optional scheme of this embodiment, more preferably, the first driving mechanism 3 includes a first frame 31 and a first driving component 32. The first frame 31 is connected to the second driving mechanism 4, the first driving component 32 is disposed on the first frame 31, and the first driving component 32 is connected to the clamp 1 in a transmission manner. The first driving component 32 can drive the clamp 1 to rotate vertically around the first axis.

[0031] The first frame 31 includes a first cradle frame 33 and a first support column 34. The first support column 34 is fixedly mounted on the second frame 41 of the second drive mechanism 4 by bolts. The first cradle frame 33 is fixedly connected to the clamp 1 by bolts, and the first cradle frame 33 is rotatably connected to the first support column 34 via a rotating shaft. The first drive assembly 32 drives the rotating shaft to rotate, thereby causing the first cradle frame 33 and the clamp 1 to flip. Specifically, the first drive assembly 32 is set as a conventional rotary drive mechanism, such as including a rotary motor and a synchronous belt mechanism. The rotary motor is fixedly mounted on the second frame 41 of the second drive mechanism 4, and the output end of the rotary motor is connected to the rotating shaft through a conventional synchronous belt mechanism to achieve synchronous rotation and realize the rotary drive of the first cradle frame 33 and the clamp 1. In addition, it should be noted that the first drive assembly 32 can also adopt other mechanisms, as long as they can realize rotary drive.

[0032] In the optional scheme of this embodiment, more preferably, the second drive mechanism 4 includes a second frame 41 and a second drive component 42. The first drive mechanism 3 is fixedly disposed on the second frame 41, and the second drive component 42 is connected to the second frame 41. The second drive component 42 can drive the second frame 41 to rotate, so as to drive the first drive mechanism 3 and the clamp 1 to rotate vertically around the second axis.

[0033] The second frame 41 includes a second cradle frame 43 and a second support column 44. The second support column 44 is fixedly connected to the second cradle frame 43 by bolts. The second support column 44 is rotatably connected to the side support column 72 of the support frame 7 via a rotating shaft. The first support column 34 can be fixedly mounted on the second cradle frame 43 by bolts. The second drive assembly 42 is driven by the rotating shaft and can drive the second support column 44 and the second cradle frame 43 to rotate synchronously. Specifically, the second drive assembly 42 can be set as a conventional rotary drive mechanism, such as a rotary motor. The rotary motor can be fixedly mounted on the base plate 71 of the support frame 7 via a fixed seat. The output end of the rotary motor is driven by the rotating shaft via a conventional transmission mechanism such as a coupling to achieve the rotation drive. In addition, it should be noted that the second drive assembly 42 can also adopt other mechanisms, as long as they can achieve the rotary drive.

[0034] In the optional scheme of this embodiment, more preferably, a light-emitting plate 6 is provided on the second frame 41. The light-emitting plate 6 can be opposite to the measuring element and placed above the measuring element. The first driving mechanism 3 can drive the clamp 1 to rotate around the first axis so that different sides of the test piece 2 are opposite to the light-emitting plate 6 and can be measured by the measuring element.

[0035] The installation of a light-emitting plate 6 on the second cradle frame 43 of the second frame 41 facilitates accurate measurement of the side.

[0036] In the optional embodiments of this example, more preferably, the six-sided measuring cradle device provided in this example further includes a support frame 7, which is used to place measuring elements. The second frame 41 is rotatably mounted on the support frame 7, and the second drive assembly 42 is mounted on the support frame 7 and can drive the second frame 41 to rotate vertically along the second axis relative to the support frame 7.

[0037] The support frame 7 includes a base plate 71 and side support columns 72. The base plate 71 is used to place measuring elements such as the required measuring sensors and always remains opposite to the light-emitting plate 6 when the first drive mechanism 3 is flipped. The side support columns 72 and the base plate 71 can be fixedly connected by bolts. The setting of the side support columns 72 is conducive to the arrangement of the second drive assembly 42.

[0038] In the optional scheme of this embodiment, more preferably, the six-sided measuring cradle device provided in this embodiment further includes a limiting mechanism 8, which is disposed on the second driving mechanism 4. The limiting mechanism 8 is used to limit the flipping drive of the first driving mechanism 3 on the clamp 1.

[0039] The limiting mechanism 8 can detect and limit the degree of rotation drive of the first drive mechanism 3, thereby avoiding excessive rotation and ensuring consistent rotation angle.

[0040] Specifically, the limiting mechanism 8 includes a conventional inductive limit switch such as a photoelectric sensor. The inductive limit switch is communicatively connected to the first driving mechanism 3. The inductive limit switch can be fixedly mounted on the second cradle frame 43 via a column. Correspondingly, a sensing plate can be set on the clamp 1. When the clamp 1 rotates 180°, the sensing plate on the clamp 1 cooperates with the inductive limit switch, and the inductive limit switch sends a limit signal. The first driving mechanism 3 stops driving, so that the test piece 2 can be flipped for measurement.

[0041] In the optional scheme of this embodiment, more preferably, the limiting mechanism 8 is arranged on both sides of the clamp 1 along a direction parallel to the first axis.

[0042] By setting limit mechanisms 8 on both sides of the fixture 1, the fixture 1 can be limited and detected when rotated 180° in either the forward or reverse direction.

[0043] In the optional solutions of this embodiment, more preferably, the six-sided measuring cradle device provided in this embodiment can be implemented by setting bearing pairs at each rotating connection.

[0044] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A six-surface measurement cradle apparatus, characterized by: The utility model relates to a fixture (1) with a hollow area (11), the fixture (1) is used for fixing the measured piece (2), the measured piece (2) is opposite the hollow area (11) and is placed in the hollow area (11) one side, first drive mechanism (3) is connected with the transmission of the fixture (1) and can drive the fixture (1) vertical along the first axis overturn, so that the different side of measured piece (2) is used with the measuring element opposite, and second drive mechanism (4) is connected with the transmission of first drive mechanism (3) and can drive first drive mechanism (3) vertical along the second axis overturn, so that the different side of measured piece (2) is used with the measuring element opposite, and the first axis is perpendicular with the second axis arrangement. The fixture (1) is close to the edge of the hollow area (11) and is distributed with a plurality of positioning blocks (12) along the circumference, and the positioning blocks (12) are used for circumferential positioning of the measured piece (2), so that the measured piece (2) is placed on one side of the hollow area (11). The fixture (1) is close to the edge of the hollow area (11) and is distributed with a plurality of mounting positions (13) along the circumference, each positioning block (12) is detachably connected to a mounting position (13), and the positioning area of the measured piece (2) can be adjusted by connecting with different mounting positions (13). Further comprising the compression mechanism (5) arranged on the fixture (1), the compression mechanism (5) can be compressed to the local circumferential surface of the measured piece (2).

2. The six face measurement cradle apparatus of claim 1, wherein: The first drive mechanism (3) comprises a first frame body (31) and a first drive assembly (32), the first frame body (31) is connected with the second drive mechanism (4), the first drive assembly (32) is arranged on the first frame body (31), the first drive assembly (32) is connected with the transmission of the fixture (1), and the first drive assembly (32) can drive the fixture (1) vertical around the first axis overturn.

3. The six face measurement cradle apparatus of claim 2, wherein: The second drive mechanism (4) comprises a second frame body (41) and a second drive assembly (42), the first drive mechanism (3) is fixedly arranged on the second frame body (41), the second drive assembly (42) is connected with the second frame body (41), the second drive assembly (42) can drive the second frame body (41) rotates, so that the first drive mechanism (3) and the fixture (1) vertical around the second axis overturn.

4. The six face measurement cradle apparatus of claim 1, wherein: The second frame body (41) is provided with a light-emitting plate (6), the light-emitting plate (6) can be placed above the measuring element opposite the measuring element, and the first drive mechanism (3) can drive the fixture (1) around the first axis overturn, so that the different side of measured piece (2) is opposite the light-emitting plate (6), and can be measured by the measuring element.

5. The six face measurement cradle apparatus of claim 1, wherein: ​ 6. The six face metrology cradle apparatus of claim 1, wherein: ​ 7. The six face measuring cradle apparatus of claim 6, wherein: ​ 8. The six face measuring cradle apparatus of claim 6, wherein: It also includes a support frame (7) for placing the measuring element, a second frame (41) rotatably mounted on the support frame (7), and a second drive assembly (42) mounted on the support frame (7) and capable of driving the second frame (41) to rotate vertically along the second axis relative to the support frame (7).

9. The six face metrology cradle apparatus of claim 1, wherein: It also includes a limiting mechanism (8) disposed on the second drive mechanism (4), the limiting mechanism (8) being used to limit the flipping drive of the first drive mechanism (3) on the fixture (1).

10. The six face measuring cradle apparatus of claim 9, wherein: The limiting mechanism (8) is arranged on both sides of the clamp (1) in a direction parallel to the first axis.

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