Height-adjustable three-coordinate measuring instrument

Abstract

The utility model relates to the technical field of three-coordinate measuring instruments, in particular to a height-adjustable three-coordinate measuring instrument which comprises a working table, sliding tables are fixedly mounted on two sides of the upper surface of the working table, clamping blocks are slidably mounted on the upper surfaces of the sliding tables, a first driving mechanism for the clamping blocks is arranged in each sliding table, and a second driving mechanism for driving the clamping blocks is arranged in each sliding table. A fixed column is fixedly installed on the upper surface of the clamping block, movable columns are movably inserted into the upper end of the fixed column, a supporting rod is fixedly installed between the two movable columns, the outer surface of the supporting rod is movably sleeved with a movable sleeve, and a measuring head is fixedly installed at the lower end of the movable sleeve; the lower end of the supporting rod is provided with a second driving mechanism used for the movable sleeve, under the mutual cooperation of the first driving mechanism and the second driving mechanism, the measuring head can be driven to move front, back, left and right, and therefore the flexibility and convenience of the measuring head in the measuring process are improved. And the measuring head is driven to move up and down under the action of the adjusting mechanism.

Description

Technical Field

[0001] The utility model relates to the technical field of three-coordinate measuring instruments, in particular to a three-coordinate measuring instrument with adjustable height. Background Art

[0002] A three-dimensional coordinate measuring machine is a high-precision three-dimensional measuring device, also known as a three-dimensional coordinate measuring machine or a three-dimensional coordinate measuring instrument. It determines the size, shape and position of a target object by measuring its three-dimensional coordinates. It is widely used in engineering manufacturing, automobile manufacturing, aerospace, mold manufacturing and other fields. The three-dimensional coordinate measuring machine can accurately measure the length, width, height, curved surface shape, flatness, roundness, straightness and other parameters of an object.

[0003] In the prior art, most of the three-dimensional coordinate measuring machines used, in which the probe of the three-dimensional coordinate measuring machine can perform simple forward and backward movements. This movement relies on the cooperation between the slide bar and the slider. During the movement, sometimes there will be a jamming phenomenon, which can easily cause the probe to shake, thereby causing errors in the measured data. At the same time, some three-dimensional coordinate measuring machines do not have the function of up and down adjustment, resulting in the problem of being unable to measure different volumes and poor measurement adaptability. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides the following technical solutions: a height-adjustable three-coordinate measuring instrument comprises a workbench, slides are fixedly installed on both sides of the upper surface of the workbench, and a clamping block is slidably installed on the upper surface of the slide, a driving mechanism for the clamping block is arranged inside the slide, a fixed column is fixedly installed on the upper surface of the clamping block, a movable column is movably inserted at the upper end of the fixed column, a support rod is fixedly installed between the two movable columns, a movable sleeve is movably sleeved on the outer surface of the support rod, a probe is fixedly installed on the lower end of the movable sleeve, a driving mechanism for the movable sleeve is arranged on the lower end of the support rod, an adjustment mechanism is arranged on the inner side of the fixed column, and support legs are fixedly installed at the four corners of the lower surface of the workbench.

[0005] As an improvement of the above technical solution, the probe is located directly above the upper surface of the workbench.

[0006] As an improvement of the above technical solution, the driving mechanism 1 includes a movable groove opened inside the slide, one end of which is fixedly installed with a motor 1, the output shaft of the motor 1 is fixedly connected with a first screw rod, the first screw rod is arranged inside the movable groove, the first screw rod is rotatably connected to the inner wall of the movable groove through a rotating shaft 1, a movable part 1 is screwed on the outer surface of the first screw rod, and a threaded hole matching the first screw rod is opened inside the movable part 1, and the upper end of the movable part 1 is fixedly connected to the clamping block.

[0007] As an improvement of the above technical solution, a sliding rod is fixedly installed inside the other movable groove, and a movable part 2 is slidably installed on the outer surface of the sliding rod. A hole groove matching the sliding rod is opened inside the movable part 2, and the upper end of the movable part 2 is fixedly connected to the clamping block.

[0008] As an improvement of the above technical solution, the second driving mechanism includes a second motor fixedly mounted on the outer surface of the movable column, the output shaft of the second motor passes through the movable column and is fixedly connected to a second screw rod, the second screw rod is rotatably connected to another movable column through a second rotating shaft, a threaded groove is opened inside the lower end of the movable sleeve, and the second screw rod is screwed together with the threaded groove.

[0009] As an improvement of the above technical solution, the adjustment mechanism includes an electric telescopic rod and a fixed plate, a protrusion is provided on one side of the block, and the protrusion and the block are integrally formed, an electric telescopic rod is fixedly installed on the upper surface of the protrusion, the telescopic end of the electric telescopic rod is fixedly connected to the lower surface of the fixed plate, and one end of the fixed plate is fixedly installed on the inner surface of the movable column.

[0010] Beneficial effects of the utility model:

[0011] A slide is fixedly installed on both sides of the upper surface of the workbench, and a card block is slidably installed on the slide. At the same time, a driving mechanism 1 for moving the card block is arranged inside the slide, and a driving mechanism 2 is arranged below the support rod. With the cooperation of the driving mechanism 1 and the driving mechanism 2, the probe can be driven to move forward, backward, left and right, thereby increasing the flexibility and convenience of the probe when measuring. At the same time, an adjustment mechanism is arranged on the inner side of the fixed column. Under the action of the adjustment mechanism, the probe can be driven to move up and down, thereby being able to measure objects of different sizes, thereby increasing the applicability during measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0013] Figure 2 This is a structural diagram of a fixed column and a movable column of the utility model;

[0014] Figure 3 It is an enlarged structural diagram of A in the utility model;

[0015] Figure 4 It is a structural diagram of the workbench in the utility model;

[0016] Figure 5 It is the structural diagram of the probe in the utility model.

[0017] Figure numerals: 1, workbench; 101, supporting leg; 2, slide; 201, movable groove; 202, rotating shaft one; 203, first screw rod; 204, motor one; 205, slide rod; 206, movable part two; 207, movable part one; 3, clamping block; 301, protrusion; 4, fixed column; 5, movable column; 6, support rod; 7, movable sleeve; 701, second screw rod; 702, rotating shaft two; 703, motor two; 705, threaded groove; 8, probe; 9, electric telescopic rod; 11, fixed plate. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0019] See also Figure 1-5 The utility model provides a technical solution: a height-adjustable three-coordinate measuring instrument, comprising a workbench 1, slides 2 are fixedly installed on both sides of the upper surface of the workbench 1, and a clamping block 3 is slidably installed on the upper surface of the slide 2, a driving mechanism 1 for the clamping block 3 is arranged inside the slide 2, a fixed column 4 is fixedly installed on the upper surface of the clamping block 3, a movable column 5 is movably inserted at the upper end of the fixed column 4, a support rod 6 is fixedly installed between the two movable columns 5, a movable sleeve 7 is movably sleeved on the outer surface of the support rod 6, a probe 8 is fixedly installed on the lower end of the movable sleeve 7, a driving mechanism 2 for the movable sleeve 7 is arranged at the lower end of the support rod 6, an adjustment mechanism is arranged on the inner side of the fixed column 4, and support legs 101 are fixedly installed at the four corners of the lower surface of the workbench 1.

[0020] In the present embodiment, a slide 2 is fixedly installed on both sides of the upper surface of the workbench 1, and a clamping block 3 is slidably installed on the slide 2. At the same time, a driving mechanism 1 for moving the clamping block 3 is arranged inside the slide 2, and a driving mechanism 2 is arranged below the support rod 6. With the cooperation of the driving mechanism 1 and the driving mechanism 2, the probe 8 can be driven to move forward, backward, left and right, thereby increasing the flexibility and convenience of the probe 8 during measurement. At the same time, an adjustment mechanism is arranged on the inner side of the fixed column 4. Under the action of the adjustment mechanism, the probe 8 can be driven to move up and down, thereby being able to measure objects of different sizes, thereby increasing the applicability during measurement.

[0021] Specifically, the probe 8 is located directly above the upper surface of the workbench 1 .

[0022] Specifically, the driving mechanism 1 includes a movable groove 201 opened inside the slide 2, wherein a motor 1 204 is fixedly installed at one end of one movable groove 201, and the output shaft of the motor 1 204 is fixedly connected to the first screw rod 203, the first screw rod 203 is arranged inside the movable groove 201, and the first screw rod 203 is rotatably connected to the inner wall of the movable groove 201 through the rotating shaft 1 202, and a movable part 1 207 is screwed on the outer surface of the first screw rod 203, and a threaded hole matched with the first screw rod 203 is opened inside the movable part 1 207, and the upper end of the movable part 1 207 is fixedly connected to the block 3, and a sliding rod 205 is fixedly installed inside the other movable groove 201, and a movable part 2 206 is slidably installed on the outer surface of the sliding rod 205, and a hole groove matched with the sliding rod 205 is opened inside the movable part 206, and the upper end of the movable part 206 is fixedly connected to the block 3.

[0023] In this embodiment, through the cooperation of the rotating shaft 202, the first screw rod 203, the motor 204, and the movable part 207 in the driving mechanism, the first screw rod 203 is driven by the motor 204 to rotate, thereby driving the block 3 to move, thereby increasing the convenience of moving the probe 8 back and forth.

[0024] Specifically, the second driving mechanism includes a second motor 703 fixedly mounted on the outer surface of the movable column 5. The output shaft of the second motor 703 passes through the movable column 5 and is fixedly connected to a second screw rod 701. The second screw rod 701 is rotatably connected to another movable column 5 through a second rotating shaft 702. A threaded groove 705 is opened inside the lower end of the movable sleeve 7, and the second screw rod 701 is screwed together with the threaded groove 705.

[0025] In this embodiment, through the mutual cooperation of the second screw rod 701 and the second motor 703 in the driving mechanism 2, the movable sleeve 7 can be moved left and right by the second screw rod 701 under the drive of the second motor 703, thereby driving the probe 8 to move left and right, thereby increasing the convenience of the probe 8 when moving left and right.

[0026] Specifically, the adjustment mechanism includes an electric telescopic rod 9 and a fixed plate 11, a protrusion 301 is provided on one side of the block 3, and the protrusion 301 and the block 3 are integrally formed, the electric telescopic rod 9 is fixedly installed on the upper surface of the protrusion 301, the telescopic end of the electric telescopic rod 9 is fixedly connected to the lower surface of the fixed plate 11, and one end of the fixed plate 11 is fixedly installed on the inner surface of the movable column 5.

[0027] In this embodiment, the electric telescopic rod 9 and the fixing plate 11 in the adjustment mechanism cooperate with each other to realize the up and down movement of the measuring head 8, thereby adjusting the measuring head 8 up and down.

[0028] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.

Claims

1. A height-adjustable three-dimensional coordinate measuring instrument, comprising a workbench (1), characterized in that: Slides (2) are fixedly mounted on both sides of the upper surface of the workbench (1), and a block (3) is slidably mounted on the upper surface of the slide (2), a driving mechanism for the block (3) is arranged inside the slide (2), a fixed column (4) is fixedly mounted on the upper surface of the block (3), a movable column (5) is movably inserted at the upper end of the fixed column (4), a support rod (6) is fixedly mounted between the two movable columns (5), a movable sleeve (7) is movably sleeved on the outer surface of the support rod (6), a probe (8) is fixedly mounted at the lower end of the movable sleeve (7), a driving mechanism for the movable sleeve (7) is arranged at the lower end of the support rod (6), an adjustment mechanism is arranged on the inner side of the fixed column (4), and support legs (101) are fixedly mounted at the four corners of the lower surface of the workbench (1).

2. The height-adjustable three-coordinate measuring instrument according to claim 1, characterized in that: The measuring head (8) is located directly above the upper surface of the workbench (1).

3. The height-adjustable three-coordinate measuring instrument according to claim 1, characterized in that: The driving mechanism 1 comprises a movable groove (201) provided inside the slide (2), wherein a motor 1 (204) is fixedly mounted on one end of the movable groove (201), and an output shaft of the motor 1 (204) is fixedly connected to a first screw rod (203), the first screw rod (203) is arranged inside the movable groove (201), the first screw rod (203) is rotatably connected to the inner wall of the movable groove (201) via a rotating shaft 1 (202), a movable part 1 (207) is screwedly mounted on the outer surface of the first screw rod (203), and a threaded hole matching the first screw rod (203) is provided inside the movable part 1 (207), and the upper end of the movable part 1 (207) is fixedly connected to the clamping block (3).

4. The height-adjustable three-coordinate measuring instrument according to claim 3, characterized in that: A slide bar (205) is fixedly installed inside the other movable groove (201), and a movable part 2 (206) is slidably installed on the outer surface of the slide bar (205). A hole groove matching the slide bar (205) is opened inside the movable part 2 (206), and the upper end of the movable part 2 (206) is fixedly connected to the block (3).

5. The height-adjustable three-coordinate measuring instrument according to claim 1, characterized in that: The second driving mechanism comprises a second motor (703) fixedly mounted on the outer surface of the movable column (5); the output shaft of the second motor (703) passes through the movable column (5) and is fixedly connected to a second screw rod (701); the second screw rod (701) is rotationally connected to another movable column (5) via a second rotating shaft (702); a threaded groove (705) is provided inside the lower end of the movable sleeve (7); the second screw rod (701) is screwed together with the threaded groove (705).

6. The height-adjustable three-coordinate measuring instrument according to claim 1, characterized in that: The adjustment mechanism comprises an electric telescopic rod (9) and a fixed plate (11); a protrusion (301) is provided on one side of the clamping block (3); the protrusion (301) and the clamping block (3) are integrally formed; the electric telescopic rod (9) is fixedly mounted on the upper surface of the protrusion (301); the telescopic end of the electric telescopic rod (9) is fixedly connected to the lower surface of the fixed plate (11); and one end of the fixed plate (11) is fixedly mounted on the inner surface of the movable column (5).

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