Double-cantilever three-coordinate measurement ruling machine

Abstract

The double-cantilever three-coordinate measuring and scribing machine comprises a bottom plate, a left measuring and scribing mechanism and a right measuring and scribing mechanism, each measuring and scribing mechanism comprises a Y-axis sliding assembly, a Z-axis sliding assembly, an X-axis sliding assembly and a cantilever, and a precise measuring mechanism is arranged at the end of each cantilever. The precision measuring mechanism comprises a mounting assembly, a measuring assembly, a cleaning assembly and an angle limiting assembly. The measuring assembly is used for measuring a workpiece, the measuring assembly comprises a supporting seat, an adjusting motor and a measuring needle head, the mounting assembly is used for mounting the measuring assembly at the end of a cantilever, and the mounting assembly comprises an annular plate and four fan-shaped plates. According to the double-cantilever three-coordinate measurement ruling machine, the measuring assembly is installed at the ends of the cantilevers through the installation assembly, when the measuring assembly needs to be disassembled and maintained, the measuring assembly can be rapidly taken down only by loosening the locking sleeve and rotating the annular plate, and the convenience of the device in use is improved.

Description

Technical Field

[0001] The invention relates to the technical field of measuring marking machines, in particular to a double-cantilever three-coordinate measuring marking machine. Background Art

[0002] A three-dimensional coordinate measuring machine is an instrument with a detector that can move in three directions and can move on three mutually perpendicular guide rails. The detector transmits signals in contact or non-contact ways. The displacement measurement system of the three axes (such as an optical ruler) calculates the coordinates of each point of the workpiece (X, Y, Z) and various functional measurements through a data processor or computer. The measurement functions of the three-dimensional coordinate measuring machine should include dimensional accuracy, positioning accuracy, geometric accuracy and contour accuracy. It is mainly used to measure the dimensional error and form and position error of parts and components, and plays an important role in ensuring the quality of products.

[0003] Reference patent announcement number "CN102679929A" discloses a horizontal arm type three-coordinate measurement marking machine, including a column, a horizontal arm, a base, a control device, and a displacement sensor device. The measuring instrument or marking instrument is arranged at the end of the horizontal arm facing the measured object. The base is two sets of mutually parallel X-axis linear slides installed on the platform. The upper part of the slider of the X-axis linear slide is installed with an X-slide plate, forming the X-axis of the three-coordinate measurement marking machine.

[0004] As shown in the above technology, the existing three-coordinate measuring and marking machine mainly measures the workpiece by moving the measuring head during measurement. The measuring head in the existing marking machine is fixedly installed with bolts and cantilever. As a precision component, the measuring head often needs maintenance. The existing disassembly method cannot be operated quickly and is very inconvenient to use. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a dual-cantilever three-coordinate measuring and marking machine, which solves the problem that the measuring head in the existing three-coordinate measuring and marking machine is inconvenient to measure.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a dual-cantilever three-coordinate measuring and marking machine includes a bottom plate and two left and right measuring and marking mechanisms, the measuring and marking mechanisms include a Y-axis sliding assembly, a Z-axis sliding assembly, an X-axis sliding assembly and a cantilever, and a precision measuring mechanism is arranged at the end of the cantilever, and the precision measuring mechanism includes: a mounting assembly, a measuring assembly, a cleaning assembly and an angle limit assembly;

[0007] The measuring assembly is used to measure the workpiece, and the measuring assembly includes a support seat, an adjustment motor and a measuring needle. The mounting assembly is used to mount the measuring assembly at the end of the cantilever. The mounting assembly includes a circular ring plate and four sector plates. The circular ring plate is rotated to allow the four sector plates to approach each other and clamp the measuring assembly. The cleaning assembly is arranged on the support seat and is used to clean the surface of the measuring needle. The cleaning assembly includes a cleaning brush, and the cleaning brush can be flipped in position and clean the head of the measuring needle in a rotating manner. The angle limit assembly is used to measure the angle of rotation of the measuring needle and to stabilize the positioning.

[0008] Preferably, the mounting assembly also includes a mounting plate, one side of the mounting plate is fixedly connected to a cylindrical seat, the surface of the cylindrical seat is provided with at least four slide grooves equidistantly along the circumferential direction, and the inner surface of the slide groove is slidably connected to a fan-shaped plate, and the inner side of the fan-shaped plate is fixedly connected to a guide rod.

[0009] Preferably, the annular plate is rotatably connected to one side of the mounting plate, and the annular plate is located inside the cylindrical seat, and at least four guide grooves are equidistantly provided inside the annular plate, and the guide rod is located inside the guide groove. When the annular plate rotates, the inner wall of the guide groove contacts the guide rod and pushes the guide rod to move so that the sector plate clamps the measuring assembly.

[0010] Preferably, a handle rod is fixedly connected to the surface of the circular ring plate, an arc-shaped groove plate is fixedly connected between the handle rods, a bolt rod is fixedly connected to one side of the mounting plate, and the bolt rod passes through the inside of the arc-shaped groove plate, and the surface of the bolt rod is threadedly connected to a locking sleeve for locking the position of the circular ring plate.

[0011] Preferably, the adjustment motor is fixed on a support seat, and the adjustment motor is fixedly connected to one side of the measuring needle via a connecting shaft, and a T-shaped mounting block is fixedly connected to one side of the support seat.

[0012] Preferably, the cleaning assembly includes a fixed plate, and the fixed plate is fixedly connected to one side of the support seat, and a groove is opened on one side of the fixed plate, an intermediate rod is fixedly connected between the top and bottom of the inner wall of the groove, and the surface of the intermediate rod is rotatably connected to a rotating plate, one side of the rotating plate is fixedly connected to a driving motor, and the output end of the driving motor is fixedly connected to the cleaning brush.

[0013] Preferably, a first electric push rod is rotatably connected to one side of the fixed plate, a connecting piece is fixedly connected to the end surface of the rotating plate, and a telescopic end of the first electric push rod is rotatably connected to the connecting piece.

[0014] Preferably, the angle limit assembly includes a limit ring, which is fixedly connected to one side of the measuring needle, the top of the adjustment motor is fixedly connected to the second electric push rod through a bracket, and the telescopic end of the second electric push rod is fixedly connected to the limit block, a plurality of limit grooves are equidistantly provided on the surface of the limit ring, an arc groove is provided inside the limit block, and a plurality of limit teeth for cooperating with the limit grooves are fixedly connected to the inner surface of the arc groove, the bottom of the adjustment motor is fixedly connected to the angle measurement sensor through the bracket, and the angle measurement sensor is used to measure the rotation angle of the limit ring.

[0015] Beneficial Effects

[0016] The present invention provides a dual-cantilever three-coordinate measuring marking machine. Compared with the prior art, it has the following advantages:

[0017] Beneficial effects:

[0018] 1. The double-cantilever three-coordinate measuring and marking machine installs the measuring component to the end of the cantilever through the installation component. When the measuring component needs to be removed for maintenance, the measuring component can be quickly removed by simply loosening the locking sleeve and rotating the ring plate, which improves the convenience of using the device.

[0019] 2. The dual-cantilever three-coordinate measuring and marking machine can clean the head of the measuring needle of the measuring component through the cleaning component to prevent the measuring needle from accidentally touching the workpiece and adhering to dust and other impurities during use, thereby ensuring the measuring accuracy of the measuring and marking machine.

[0020] 3. The dual-cantilever three-coordinate measuring and marking machine detects the rotation angle of the measuring needle through the angle limit assembly to ensure the accuracy of its rotation angle, and after the angle adjustment is completed, the adjusted position of the measuring needle is locked through the cooperation of the limit block and the limit ring to ensure the stability of the measuring needle position. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the appearance of the present invention;

[0022] Figure 2 It is a partial schematic diagram of the present invention;

[0023] Figure 3 is a schematic diagram of the precision measuring mechanism of the present invention;

[0024] Figure 4 is an exploded view of the precision measuring mechanism of the present invention;

[0025] Figure 5 An exploded view of the installation assembly of the present invention;

[0026] Figure 6 is a schematic diagram of a cleaning assembly of the present invention;

[0027] Figure 7 It is a schematic diagram of the angle limiting assembly of the present invention.

[0028] In the figure: 1, base plate; 2, Y-axis sliding assembly; 3, Z-axis sliding assembly; 4, X-axis sliding assembly; 5, cantilever; 6, mounting assembly; 61, mounting plate; 62, cylindrical seat; 63, slide groove; 64, fan-shaped plate; 65, guide rod; 66, circular ring plate; 67, guide groove; 68, handle rod; 69, arc groove plate; 610, locking sleeve; 611, bolt rod; 7, measuring assembly; 71, support seat; 72, adjustment motor; 73, measuring needle; 8, cleaning assembly; 81, fixing plate; 82, groove; 83, middle rod; 84, rotating plate; 85, driving motor; 86, cleaning brush; 87, first electric push rod; 88, connecting piece; 9, angle limit assembly; 91, limit ring; 92, second electric push rod; 93, limit block; 94, angle measurement sensor. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] See also Figure 1-Figure 7 The dual-cantilever three-coordinate measuring and marking machine provides two technical solutions:

[0031] The first embodiment comprises a base plate 1 and two left and right measuring and marking mechanisms, the measuring and marking mechanisms comprise a Y-axis sliding assembly 2, a Z-axis sliding assembly 3, an X-axis sliding assembly 4 and a cantilever 5, a precision measuring mechanism is arranged at the end of the cantilever 5, and the precision measuring mechanism comprises: a mounting assembly 6, a measuring assembly 7, a cleaning assembly 8 and an angle limit assembly 9;

[0032] The measuring assembly 7 is used to measure the workpiece, and the measuring assembly 7 includes a support seat 71, an adjustment motor 72 and a measuring needle 73. The adjustment motor 72 is fixed on the support seat 71, and the adjustment motor 72 is fixedly connected to one side of the measuring needle 73 through a connecting shaft. A T-shaped mounting block is fixedly connected to one side of the support seat 71. The mounting assembly 6 is used to install the measuring assembly 7 at the end of the cantilever 5. The mounting assembly 6 includes a circular ring plate 66 and four sector plates 64. The circular ring plate 66 is rotated to allow the four sector plates 64 to approach each other and clamp the measuring assembly 7. The cleaning assembly 8 is arranged on the support seat 71 and is used to clean the surface of the measuring needle 73. The cleaning assembly 8 includes a cleaning brush 86, and the cleaning brush 86 can be flipped in position and clean the head of the measuring needle 73 in a rotating manner. The angle limit assembly 9 is used to measure the angle of rotation of the measuring needle 73 and to stabilize the positioning.

[0033] The mounting assembly 6 also includes a mounting plate 61, one side of which is fixedly connected to a cylindrical seat 62, the surface of the cylindrical seat 62 is provided with at least four slide grooves 63 at equal distances in the circumferential direction, and the inner surface of the slide groove 63 is slidably connected to a sector plate 64, the inner side of the sector plate 64 is fixedly connected to a guide rod 65, a circular plate 66 is rotatably connected to one side of the mounting plate 61, and the circular plate 66 is located inside the cylindrical seat 62, and at least four guide grooves 67 are provided at equal distances inside the circular plate 66, and the guide rod 65 is located inside the guide groove 67. When the circular plate 66 rotates, the inner wall of the guide groove 67 contacts the guide rod 65 and pushes the guide rod 65 to move so that the sector plate 64 clamps the measuring component 7. A handle rod 68 is fixedly connected to the surface of the circular plate 66, and an arc groove plate 69 is fixedly connected between the handle rods 68. A bolt rod 611 is fixedly connected to one side of the mounting plate 61, and the bolt rod 611 passes through the inside of the arc groove plate 69. The surface of the bolt rod 611 is threadedly connected to a locking sleeve 610 for locking the position of the circular plate 66.

[0034] The measuring assembly 7 is installed at the end of the cantilever 5 through the installation assembly 6. When the measuring assembly 7 needs to be removed for maintenance, the measuring assembly 7 can be quickly removed by simply loosening the locking sleeve 610 and rotating the annular plate 66, thereby improving the convenience of using the device.

[0035] The second embodiment is mainly different from the first embodiment in that: the cleaning component 8 includes a fixed plate 81, and the fixed plate 81 is fixedly connected to one side of the support seat 71, and a groove 82 is opened on one side of the fixed plate 81, an intermediate rod 83 is fixedly connected between the top and the bottom of the inner wall of the groove 82, and the surface of the intermediate rod 83 is rotatably connected to a rotating plate 84, one side of the rotating plate 84 is fixedly connected to a driving motor 85, and the output end of the driving motor 85 is fixedly connected to the cleaning brush 86, one side of the fixed plate 81 is rotatably connected to a first electric push rod 87, the end face of the rotating plate 84 is fixedly connected to a connecting piece 88, and the telescopic end of the first electric push rod 87 is rotatably connected to the connecting piece 88.

[0036] The cleaning component 8 can be used to clean the head of the measuring needle 73 of the measuring component 7, so as to prevent the measuring needle 73 from accidentally touching the workpiece and being adhered to dust and other impurities during use, thereby ensuring the measurement accuracy of the measuring marking machine.

[0037] The third embodiment is mainly different from the embodiment in the first embodiment in that: the angle limit assembly 9 includes a limit ring 91, the limit ring 91 is fixedly connected to one side of the measuring needle 73, the top of the adjustment motor 72 is fixedly connected to the second electric push rod 92 through a bracket, and the telescopic end of the second electric push rod 92 is fixedly connected to the limit block 93, a plurality of limit grooves are equidistantly provided on the surface of the limit ring 91, an arc groove is provided inside the limit block 93, and a plurality of limit teeth for cooperating with the limit grooves are fixedly connected to the inner surface of the arc groove, and the bottom of the adjustment motor 72 is fixedly connected to the angle measurement sensor 94 through a bracket, and the angle measurement sensor 94 is used to measure the rotation angle of the limit ring 91.

[0038] The angle of rotation of the measuring needle 74 is detected by the angle limit assembly 9 to ensure the accuracy of its rotation angle, and after the angle adjustment is completed, the adjusted position of the measuring needle 73 is locked by the cooperation of the limit block 94 and the limit ring 91 to ensure the stability of the position of the measuring needle 73.

[0039] When disassembling the measuring assembly 7, the locking sleeve 610 is rotated to make the locking sleeve 610 away from the arc groove plate 69. At this time, the circular plate 66 is rotated by the handle rod 68. The circular plate 66 rotates and makes the plurality of sector plates 64 away from the T-block on the support seat 71 under the cooperation of the guide groove 67 and the guide rod 65. At this time, the measuring assembly 7 can be removed. In addition, when it is necessary to clean the head of the measuring needle 73, the first electric push rod 87 is started and the rotating plate 84 is driven to flip, so that the cleaning brush 86 is covered on the head of the measuring needle 73, and the driving motor 85 is started to rotate the cleaning brush 86. The cleaning brush 86 rotates and completes the cleaning of the measuring needle 73. When the adjustment motor 72 is started to change the angle of the measuring needle 73, the rotation angle of the limit ring 91 is detected by the angle measurement sensor 94. After the adjustment is completed, the second electric push rod 92 is started to press the limit block 93 on the limit ring 91, so as to position and lock the rotation position of the measuring needle 73.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-cantilever three-coordinate measuring and marking machine, comprising a base plate (1) and two left and right measuring and marking mechanisms, wherein the measuring and marking mechanisms comprise a Y-axis sliding assembly (2), a Z-axis sliding assembly (3), an X-axis sliding assembly (4) and a cantilever (5), characterized in that: A precision measuring mechanism is provided at the end of the cantilever (5), and the precision measuring mechanism comprises: a mounting assembly (6), a measuring assembly (7), a cleaning assembly (8) and an angle limiting assembly (9); The measuring assembly (7) is used for measuring a workpiece, and the measuring assembly (7) comprises a support seat (71), an adjustment motor (72) and a measuring needle (73); the mounting assembly (6) is used for mounting the measuring assembly (7) at the end of the cantilever (5); the mounting assembly (6) comprises a circular ring plate (66) and four sector plates (64); the circular ring plate (66) is rotated to allow the four sector plates (64) to approach each other and clamp the measuring assembly (7); the cleaning assembly (8) is arranged on the support seat (71) and is used for cleaning the surface of the measuring needle (73); the cleaning assembly (8) comprises a cleaning brush (86); and the cleaning brush (86) can be flipped in position and clean the head of the measuring needle (73) in a rotating manner; the angle limiting assembly (9) is used for measuring the angle of rotation of the measuring needle (73) and for positioning and stabilizing.

2. The dual-cantilever three-coordinate measuring and marking machine according to claim 1, characterized in that: The mounting assembly (6) further comprises a mounting plate (61), one side of which is fixedly connected to a cylindrical seat (62), the surface of the cylindrical seat (62) being provided with at least four slide grooves (63) at equal distances along the circumferential direction, and the inner surface of the slide groove (63) being slidably connected to a sector plate (64), the inner side of which is fixedly connected to a guide rod (65).

3. The dual-cantilever three-coordinate measuring and marking machine according to claim 2, characterized in that: The circular plate (66) is rotatably connected to one side of the mounting plate (61), and the circular plate (66) is located inside the cylindrical seat (62). At least four guide grooves (67) are equidistantly provided inside the circular plate (66), and the guide rod (65) is located inside the guide groove (67). When the circular plate (66) rotates, the inner wall of the guide groove (67) contacts the guide rod (65) and pushes the guide rod (65) to move so that the sector plate (64) clamps the measuring assembly (7).

4. The dual-cantilever three-coordinate measuring and marking machine according to claim 3, characterized in that: A handle bar (68) is fixedly connected to the surface of the circular ring plate (66), an arc-shaped slot plate (69) is fixedly connected between the handle bars (68), a bolt bar (611) is fixedly connected to one side of the mounting plate (61), and the bolt bar (611) passes through the inside of the arc-shaped slot plate (69), and the surface of the bolt bar (611) is threadedly connected to a locking sleeve (610) for locking the position of the circular ring plate (66).

5. The dual-cantilever three-coordinate measuring and marking machine according to claim 1, characterized in that: The adjustment motor (72) is fixed on the support seat (71), and the adjustment motor (72) is fixedly connected to one side of the measuring needle (73) via a connecting shaft, and one side of the support seat (71) is fixedly connected to a T-shaped mounting block.

6. The dual-cantilever three-coordinate measuring and marking machine according to claim 1, characterized in that: The cleaning assembly (8) comprises a fixed plate (81), and the fixed plate (81) is fixedly connected to one side of the support seat (71), and a groove (82) is provided on one side of the fixed plate (81), an intermediate rod (83) is fixedly connected between the top and the bottom of the inner wall of the groove (82), and a rotating plate (84) is rotatably connected to the surface of the intermediate rod (83), a driving motor (85) is fixedly connected to one side of the rotating plate (84), and an output end of the driving motor (85) is fixedly connected to a cleaning brush (86).

7. The dual-cantilever three-coordinate measuring and marking machine according to claim 6, characterized in that: A first electric push rod (87) is rotatably connected to one side of the fixed plate (81), a connecting piece (88) is fixedly connected to the end surface of the rotating plate (84), and a telescopic end of the first electric push rod (87) is rotatably connected to the connecting piece (88).

8. The dual-cantilever three-coordinate measuring and marking machine according to claim 1, characterized in that: The angle limit assembly (9) comprises a limit ring (91), the limit ring (91) is fixedly connected to one side of a measuring needle (73), the top of the adjustment motor (72) is fixedly connected to a second electric push rod (92) via a bracket, and the telescopic end of the second electric push rod (92) is fixedly connected to a limit block (93), a plurality of limit grooves are equidistantly provided on the surface of the limit ring (91), an arc groove is provided inside the limit block (93), and a plurality of limit teeth for cooperating with the limit grooves are fixedly connected to the inner surface of the arc groove, and an angle measurement sensor (94) is fixedly connected to the bottom of the adjustment motor (72) via a bracket, and the angle measurement sensor (94) is used to measure the rotation angle of the limit ring (91).

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