Precise three-coordinate imaging measuring machine

Abstract

The utility model relates to the technical field of three-coordinate measurement, and discloses a precise three-coordinate imaging measuring machine, which comprises a bottom frame, a working table mounted at the top of the bottom frame, two caulking grooves formed in the top surface of the working table, lifting rods embedded in the caulking grooves, balls movably mounted on the top surfaces of the lifting rods, and a plurality of push rods mounted at the bottom of the lifting rods, a groove is formed in the bottom of the workbench, a rotating rod rotationally installed on the workbench is arranged in the groove, a motor with a self-locking function is installed on one side of the workbench, the motor is connected with the rotating rod, a plurality of gears are fixedly connected to the rotating rod, a plurality of guide rods are fixedly installed on the inner wall of the groove, and two sliding blocks are slidably connected to each guide rod. The sliding block is fixedly connected with an inclined pushing block, and one side of the inclined pushing block is fixedly connected with a rack. A workpiece is moved on the three-coordinate measuring workbench through the balls, so that the workpiece is convenient to move, meanwhile, the balls support movement, the surface of the workbench cannot be damaged, and the situation that the surface of the workbench is abraded, and detection precision is affected is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of three - coordinate measurement, and specifically relates to a precision three - coordinate imaging measuring machine. Background Art

[0002] The three - coordinate measuring machine is one of the most effective methods for measuring and obtaining dimensional data, so it is widely used in industries such as machinery, electronics, instrumentation, plastics, etc.

[0003] When using a three - coordinate measuring machine to measure large workpieces, due to the large size and heavy weight of the workpieces, generally, the workpieces can be directly placed on the workbench for measurement. In the above - mentioned measurement of large workpieces by a three - coordinate measuring machine, it is often necessary to move and adjust the position of the workpieces. In the existing movement of workpieces, the workpieces are very easy to scratch the workbench, thus affecting the detection accuracy. To solve the above - mentioned problems, a precision three - coordinate imaging measuring machine is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a precision three - coordinate imaging measuring machine to solve the above - mentioned problems.

[0005] The technical scheme adopted by the utility model is as follows: A precision three - coordinate imaging measuring machine includes a chassis. A three - coordinate measuring workbench is installed on the top of the chassis. Two embedding grooves are opened on the top surface of the workbench. A lifting rod is embedded in the embedding groove. A ball is movably installed on the top surface of the lifting rod. A plurality of push rods are fixedly connected to the bottom of the lifting rod. The lower end of the push rod is a slope, and a T - shaped strip is fixedly connected to the slope of the lower end of the push rod. A groove is opened at the bottom of the workbench. A rotating rod rotatably installed on the workbench is arranged inside the groove. A motor with self - locking is fixedly installed on one side of the workbench. The motor is connected to the rotating rod through an output shaft. A plurality of gears are fixedly connected to the rotating rod. A plurality of guide rods are fixedly installed on the inner wall of the groove. Two sliders are slidably connected to each guide rod. An inclined push block is fixedly connected to the slider. A T - shaped groove is provided on the slope of the inclined push block. The T - shaped strip is slidably connected to the T - shaped groove. A rack is fixedly connected to one side of the inclined push block. The rack is engaged with the gear.

[0006] In a preferred embodiment, a three - axis stage is installed on the workbench, and a three - coordinate measuring probe is installed at the lower end of the Z - axis of the three - axis stage.

[0007] In a preferred embodiment, a plurality of connection holes communicating with the groove are opened at the bottom of the embedding groove, and the push rod is adapted to penetrate through the connection hole.

[0008] In a preferred embodiment, the inclination of the lower - end slope of the push rod is adapted to the inclination of the slope of the inclined push block.

[0009] In a preferred embodiment, a guide hole is provided on the slider, and the slider is slidably connected to the guide rod through the guide hole. A convex strip is formed on the inner wall of the guide hole, and a limiting groove is provided on the outer wall of the guide rod. The convex strip is slidably connected to the limiting groove in a matching manner.

[0010] In a preferred embodiment, a sealing plate flush with the workbench is installed on the upper part of the embedding groove. Through holes corresponding to the ball bearings are provided on the sealing plate, and the ball bearings can penetrate through the through holes.

[0011] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0012] 1. In the present utility model, when moving a workpiece on a three-coordinate measuring workbench, the ball bearings are lifted by the pushing structure and protrude from the surface of the workbench. Then, the operator can move the workpiece through the ball bearings, which facilitates the movement of the workpiece. At the same time, the ball bearings support the movement without damaging the surface of the workbench, avoiding the wear of the workbench surface and affecting the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic three-dimensional structure diagram of the present utility model;

[0014] Figure 2 is a schematic front internal structure diagram of the present utility model;

[0015] Figure 3 is a schematic three-dimensional structure diagram of the ball bearing pushing structure of the present utility model.

[0016] Reference numerals in the drawings: 1 - chassis, 2 - workbench, 3 - embedding groove, 4 - lifting rod, 5 - ball bearing, 6 - push rod, 7 - T-shaped strip, 8 - groove, 9 - rotating rod, 10 - motor, 11 - gear, 12 - guide rod, 13 - slider, 14 - inclined push block, 15 - T-shaped groove, 16 - rack, 17 - three-axis moving platform, 18 - probe, 19 - connection hole, 20 - guide hole, 21 - convex strip, 22 - limiting groove, 23 - sealing plate, 24 - through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] The following will be combined with Figures 1-3A detailed description is given to a precision three - coordinate imaging measuring machine according to an embodiment of the present utility model.

[0019] Embodiment:

[0020] A precision three - coordinate imaging measuring machine provided by an embodiment of the present utility model, referring to Figures 1 to 3 as shown, includes a chassis 1. A workbench 2 for three - coordinate measurement is installed at the top of the chassis 1. A three - axis moving stage 17 is installed on the workbench 2. A probe 18 for three - coordinate measurement is installed at the lower end of the Z - axis of the three - axis moving stage 17. In this structure, a person places the workpiece to be measured on the workbench 2, and then uses the three - axis moving stage 17 to drive the probe 18 to move, so as to perform three - coordinate measurement on different positions of the workpiece.

[0021] It should be noted that: the three - axis moving stage 17 is an existing device, and its specific structure and control system have been made public, so no more introduction will be given here. It mainly consists of a Y - axis guide rail, a main column, an X - axis guide rail, a secondary column and a Z - axis guide rail. The probe 18 is installed at the lower end of the Z - axis guide rail.

[0022] Referring to Figures 1 to 3As shown in the figure, two embedding grooves 3 are formed on the top surface of the workbench 2. A lifting rod 4 is embedded in the embedding groove 3. A ball 5 is movably installed on the top surface of the lifting rod 4. A plurality of push rods 6 are fixedly connected to the bottom of the lifting rod 4. The lower end of the push rod 6 is a slope, and a T-shaped strip 7 is fixedly connected to the slope of the lower end of the push rod 6. A groove 8 is formed at the bottom of the workbench 2. A rotating rod 9 rotatably installed on the workbench 2 is arranged inside the groove 8. A motor 10 with self-locking is fixedly installed on one side of the workbench 2. The motor 10 is connected to the rotating rod 9 through an output shaft. A plurality of gears 11 are fixedly connected to the rotating rod 9. A plurality of guide rods 12 are fixedly installed on the inner wall of the groove 8. Two sliders 13 are slidably connected to each guide rod 12. An inclined push block 14 is fixedly connected to the slider 13. A T-shaped groove 15 is formed on the slope of the inclined push block 14. The T-shaped strip 7 is slidably connected to the T-shaped groove 15. A rack 16 is fixedly connected to one side of the inclined push block 14. The rack 16 is engaged with the gear 11. In this structure, when it is necessary to move on the workbench 2, the motor 10 can be started at this time to drive the gear 11 on the rotating rod 9 to rotate. The gear 11 drives the rack 16 to move, thereby driving the inclined push block 14 to move. The inclined push block 14 will push the push rod 6 upward, so that the ball 5 on the lifting rod 4 protrudes from the surface of the workbench 2. When the lifting reaches the position, the self-locking structure of the motor 10 can lock the position of the inclined push block 14 at this time. The T-shaped groove 15 of the inclined push block 14 cooperates with the T-shaped strip 7 at the bottom of the push rod 6 to lock the height of the ball. At this time, the ball 5 can lift the bottom plate of the workpiece fixture, and then the operator can easily push the workpiece to move, which is convenient for the operator to adjust. At the same time, this structure will not cause frictional damage to the surface of the workbench 1 when moving the workpiece, protecting the surface of the workbench 1. When the movement reaches the position, the motor 10 is started in the reverse direction to drive the ball 5 to return to its original position, so that the workpiece fixture is placed on the workbench 2, and then the workpiece can be measured by a three-coordinate measuring machine.

[0023] Reference Figures 1 to 3 As shown in the figure, a plurality of connection holes 19 communicating with the groove 8 are formed at the bottom of the embedding groove 3. The push rod 6 is adapted to penetrate through the connection hole 19. This structure facilitates the communication between the groove 8 and the embedding groove 3 by using the connection hole 19, and at the same time plays a guiding role in the up and down movement of the push rod 6.

[0024] Reference Figures 1 to 3 As shown in the figure, the inclination of the slope at the lower end of the push rod 6 is adapted to the inclination of the slope of the inclined push block 14.

[0025] Reference Figures 1 to 3 As shown in the figure, a guide hole 20 is formed on the slider 13. The slider 13 is slidably connected to the guide rod 12 through the guide hole 20. A convex strip 21 is formed on the inner wall of the guide hole 20. A limit groove 22 is formed on the outer wall of the guide rod 12. The convex strip 21 is slidably connected to the limit groove 22 in an adapted manner. This structure that the guide hole 20 of the slider 13 cooperates with the guide rod 12 can play a guiding role in the movement of the inclined push block 14, and the design of the convex strip 21 and the limit groove 22 prevents the slider 13 from rotating relative to the guide rod 12.

[0026] Reference Figures 1 to 3 As shown, a sealing plate 23 flush with the workbench 2 is installed on the upper part of the embedded groove 3. A through hole 24 corresponding to the ball 5 is opened on the sealing plate 23. The ball 5 can penetrate through the through hole 24. This structure uses the sealing plate 23 to seal the embedded groove 3, and at the same time, the through hole 24 facilitates the ball 5 to penetrate through the sealing plate 23 and protrude from the surface of the workbench 2.

[0027] The implementation principle of a precision three-coordinate imaging measuring machine according to an embodiment of the present application is as follows: When it is necessary to move a workpiece on the workbench 2 of the three-coordinate measuring device, the motor 10 can be started at this time to drive the gear 11 on the rotating rod 9 to rotate. The gear 11 drives the rack 16 to move, thereby driving the inclined push block 14 to move. The inclined push block 14 will push the push rod 6 upward, so that the ball 5 on the lifting rod 4 penetrates through the through hole 24 of the sealing plate 23 and protrudes from the surface of the workbench 2. When the lifting reaches the position, the position of the inclined push block 14 can be locked by using the self-locking structure of the motor 10 at this time. The T-shaped groove 15 of the inclined push block 14 cooperates with the T-shaped strip 7 at the bottom of the push rod 6 to lock the height of the ball. At this time, the ball 5 can lift the workpiece fixture bottom plate, and then the operator can easily push the workpiece to move, which is convenient for the operator to adjust. At the same time, this structure will not cause frictional damage to the surface of the workbench 1 when moving the workpiece, protecting the surface of the workbench 1. When the movement reaches the position, the motor 10 is started in reverse at this time to drive the ball 5 to return to its position, so that the workpiece fixture is placed on the workbench 2, and then the three-axis moving platform 17 can be used to drive the probe 18 to move, so as to perform three-coordinate measurement on the workpiece.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and 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 embodiments of the present invention.

Claims

1. A precision three-coordinate imaging measuring machine, comprising a base frame (1), characterized in that: A three-coordinate measuring workbench (2) is installed on the top of the base frame (1), and two embedded grooves (3) are provided on the top surface of the workbench (2), and a lifting rod (4) is embedded in the embedded groove (3). A ball (5) is movably installed on the top surface of the lifting rod (4), and a plurality of push rods (6) are fixedly connected to the bottom of the lifting rod (4). The lower end of the push rod (6) is an inclined surface, and a T-shaped bar (7) is fixedly connected to the inclined surface of the lower end of the push rod (6). A groove (8) is provided at the bottom of the workbench (2), and a rotating rod (9) rotatably installed on the workbench (2) is arranged inside the groove (8). One side of the workbench (2) is fixedly installed with A self-locking motor (10) is provided, wherein the motor (10) is connected to the rotating rod (9) via an output shaft, a plurality of gears (11) are fixedly connected to the rotating rod (9), a plurality of guide rods (12) are fixedly installed on the inner wall of the groove (8), each of the guide rods (12) is slidably connected to two sliders (13), an inclined push block (14) is fixedly connected to the slider (13), a T-shaped slot (15) is clamped on the inclined surface of the inclined push block (14), the T-shaped bar (7) is slidably connected to the T-shaped slot (15), a rack (16) is fixedly connected to one side of the inclined push block (14), and the rack (16) is meshed with the gear (11).

2. A precision three-coordinate imaging measuring machine as claimed in claim 1, characterized in that: A three-axis moving platform (17) is installed on the workbench (2), and a three-coordinate measurement probe (18) is installed at the lower end of the Z axis of the three-axis moving platform (17).

3. A precision three-coordinate imaging measuring machine as claimed in claim 1, characterized in that: The bottom of the embedding groove (3) is provided with a plurality of connection holes (19) which are in communication with the groove (8), and the push rod (6) is adapted to pass through the connection holes (19).

4. The precision three-coordinate imaging measuring machine according to claim 1, characterized in that: The inclination of the lower end inclined surface of the push rod (6) is adapted to the inclination of the inclined surface of the inclined push block (14).

5. The precision three-coordinate imaging measuring machine according to claim 1, characterized in that: The slider (13) is provided with a guide hole (20), and the slider (13) is slidably connected to the guide rod (12) through the guide hole (20). A convex strip (21) is constructed on the inner wall of the guide hole (20), and a limiting groove (22) is provided on the outer wall of the guide rod (12). The convex strip (21) and the limiting groove (22) are adaptively slidably connected.

6. The precision three-coordinate imaging measuring machine according to claim 1, characterized in that: A sealing plate (23) flush with the workbench (2) is installed on the upper part of the embedding groove (3), and a through hole (24) corresponding to the ball (5) is opened on the sealing plate (23), and the ball (5) can pass through the through hole (24).

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