Lifting detection structure and measuring instrument

Abstract

The utility model discloses a lifting detection structure which comprises a vertical installation column, a vertical guide rail is arranged on one side of the installation column, a coil spring piece is arranged at the bottom of the other opposite side of the installation column, a first sliding block is connected to the vertical guide rail in a sliding mode, and a detection assembly sliding along with the first sliding block is arranged on the first sliding block. A first transmission assembly for driving the first driving sliding block to slide is arranged on the mounting column, a pulley block and a traction rope in sliding fit with the pulley block are arranged at the top of the mounting column, one end of the traction rope is connected with the first sliding block, and the other end of the traction rope is connected with a coil spring piece; the utility model further provides a measuring instrument provided with the lifting detection structure. According to the utility model, the inertia generated when the detection assembly slides to a designated position is avoided, so that the detection is more accurate and stable.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring instruments and equipment, in particular to a lifting detection structure and a measuring instrument. Background Art

[0002] A three-dimensional coordinate measuring machine is a measuring device that has guide mechanisms, length measuring elements, and digital display devices in three mutually perpendicular directions. It has a workbench that can place workpieces (not necessarily large and giant machines). The probe can be moved to the measured point manually or motorizedly, and the coordinate value of the measured point is displayed by the reading device and the digital display device. Obviously, this is the simplest and most primitive measuring machine. With this measuring machine, the coordinate value of any point in the measuring volume can be displayed by the reading device and the digital display device. The measuring machine's point sampling and signaling device is a probe, and a grating ruler and a reading head are installed along the three axes of X, Y, and Z. The measurement process is that when the probe contacts the workpiece and sends a sampling signal, the control system collects the coordinate values ​​of the current three-axis coordinates of the machine tool relative to the origin of the machine tool, and then the computer system processes the data. Therefore, the three-coordinate measuring machine is a very high-precision detection instrument. The existing three-coordinate measuring machine is usually provided with a mounting column perpendicular to the base. The mounting column mostly uses a ball screw and a linear guide sliding device to install the lens module to drive the lens module to rise or fall along the Z axis. However, as the detection module moves, the center of gravity of the mounting column also changes, which can easily cause the mounting column to shake and reduce the stability of the measuring instrument. Especially when the detection module is at a higher place, the top of the mounting column is easy to tilt downward, making the detection effect of the measuring instrument poor. Utility Model Content

[0003] The utility model aims to provide a lifting detection structure and a measuring instrument designed to solve the deficiencies of the above-mentioned technology.

[0004] The utility model designs a lifting detection structure measuring instrument, comprising a vertical mounting column, a vertical guide rail is provided on one side of the mounting column, a coil spring is provided at the bottom of the other side opposite to the mounting column, a slider is slidably connected to the vertical guide rail, a detection component is provided on the slider that slides with the slider, a transmission component is provided on the mounting column that drives the slider to slide, a pulley block and a traction rope that slidably cooperates with the pulley block are provided on the top of the mounting column, one end of the traction rope is connected to the slider, and the other end is connected to the coil spring.

[0005] Further optimized, the coil spring member includes two mounting frames fixed to the bottom of the mounting column and arranged opposite to each other and a fixed shaft connected between the two mounting frames, a coil spring is wound around the fixed shaft, and the coil spring is connected to the traction rope.

[0006] Preferably, the pulley block includes a bracket fixed to the top of the mounting column and a pulley mounted on the bracket. There are two pulleys, which are arranged in a horizontal straight line. The traction rope is fitted to the two pulleys so that one end of the traction rope passes through a pulley and vertically downwardly connects to the coil spring member, and the other end of the traction rope passes through another pulley and vertically downwardly connects to slider one.

[0007] Preferably, the transmission assembly comprises a motor fixed on a mounting column and a screw rod in the same direction as the vertical guide rail, wherein the screw rod is connected to the output end of the motor and rotates when driven by the motor, and a nut seat is slidably fitted on the screw rod, and the nut seat is connected to a slider.

[0008] Preferably, the detection assembly includes a positioning column and a movable probe, the positioning column is a square column structure, the slider is provided with a square through groove for the positioning column to be embedded, the positioning column is arranged in the same direction as the vertical guide rail, and the bottom end of the positioning column is connected to the movable probe.

[0009] The utility model designs a measuring instrument, including a measuring instrument body, the measuring instrument body including a base with a workbench, a gantry is arranged on the base, the gantry includes a crossbeam and supporting legs located at both ends of the crossbeam, the base is provided with a horizontal guide rail 1 at the supporting legs, a slider 2 is slidably connected to the horizontal guide rail 1, the gantry is slidably connected to the horizontal guide rail 1 through the slider 2, the base is provided with a transmission component 2 for driving the slider 2 to slide at one of the supporting legs, a counterweight is arranged on the supporting leg on the same side as the transmission component 2, and the above-mentioned lifting detection structure is slidably connected to the crossbeam.

[0010] Further optimization is provided on the crossbeam with a horizontal guide rail 2 which is perpendicular to the horizontal guide rail 1, and a slider 3 is slidably connected to the horizontal guide rail 2. The mounting column in the lifting detection structure is slidably connected to the crossbeam through the slider 3, and a transmission component 3 for driving the slider 3 to slide is provided on the crossbeam.

[0011] Preferably, the second transmission assembly comprises a second motor fixed on a base and a second screw rod in the same direction as the vertical guide rail, the second screw rod is connected to the output end of the second motor and rotates under the drive of the second motor, the second screw rod is slidably matched with a second nut seat, and the second nut seat is connected to the second slider;

[0012] The transmission component three includes a motor three fixed on the crossbeam and a screw rod three in the same direction as the vertical guide rail. The screw rod three is connected to the output end of the motor three and rotates under the drive of the motor three. A nut seat three is slidably fitted on the screw rod three, and the nut seat three is connected to the slider three.

[0013] Preferably, the bottom end of the mounting column is bent toward the rear side to form a horizontal mounting portion, and the coil spring member and the nut seat are correspondingly arranged at the top and bottom of the horizontal mounting portion.

[0014] As a preference, the mounting columns, positioning columns, base, crossbeams and support legs are all made of marble.

[0015] The technical effects of the utility model are as follows: 1. The detection component of the utility model moves up and down vertically along the mounting column through a slider 1, a coil spring and a pulley block are provided on the mounting column, a traction rope is slidably matched on the pulley block, one end of the traction rope is connected to the slider 1, and the other end is connected to the coil spring, and the two ends of the traction rope form equal-arm levers parallel to each other. When the detection component slides up and down with the slider 1, with the cooperation of the pulley block, the coil spring always pulls the slider 1 through the traction rope, so that a balance is formed between the slider 1 and the coil spring, thereby avoiding the inertia generated when the slider 1 slides to the specified position, making the detection more accurate and stable, so the detection of the measuring instrument equipped with the lifting detection structure is also more accurate and stable;

[0016] 2. The measuring instrument realizes the movement of the three coordinate directions by the slider 1 sliding up and down along the mounting column, the slider 2 and the gantry moving horizontally along the base, and the slider 3 making another horizontal movement along the beam;

[0017] 3. The two supporting legs of the gantry on the measuring instrument, one of which is equipped with a transmission assembly, is also equipped with a counterweight to increase the weight of the supporting leg, thereby ensuring that the two supporting legs can move synchronously and stably without tilting or offsetting due to imbalance of the center of gravity;

[0018] 4. In the present invention, the mounting columns, positioning columns, base, crossbeam and supporting legs are all made of marble, which has high plane precision, not only reducing the error of the measuring instrument, but also having high strength, wear resistance and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is the overall structural appearance diagram of the utility model;

[0020] Figure 2 This is a perspective view of the overall structure of the utility model without a protective shell;

[0021] Figure 3 This is another perspective view of the overall structure of the utility model without the protective shell;

[0022] Figure 4 This is a perspective view of the overall structure of the utility model without a base;

[0023] Figure 5 yes Figure 4 Enlarged view of point A in the middle.

[0024] In the figure: 1. Mounting column; 1-1. Horizontal mounting portion;

[0025] 2. Vertical guide rail;

[0026] 3. Coil spring member; 3-1. Mounting frame; 3-2. Fixed shaft; 3-3. Coil spring;

[0027] 4. Slider 1; 4-1. Square through slot;

[0028] 5. Detection components; 5-1. Positioning column; 5-2. Movable probe;

[0029] 6. Transmission assembly 1; 6-1. Motor 1; 6-2. Screw rod 1; 6-3. Nut seat 1;

[0030] 7. Pulley block; 7-1. Bracket; 7-2. Pulley;

[0031] 8. Traction rope; 9. Base; 10. Crossbeam; 11. Support legs; 12. Horizontal guide rail 1; 13. Slider 2;

[0032] 14. Transmission assembly 2; 14-1. Motor 2; 14-2. Screw rod 2; 14-3. Nut seat 2;

[0033] 15. Counterweight; 16. Horizontal guide rail 2; 17. Slider 3;

[0034] 18. Transmission assembly three; 18-1. Motor three; 18-2. Screw rod three; 18-3. Nut seat three;

[0035] 19. Shell. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0037] In this embodiment, a lifting detection structure is provided, such as Figures 1 to 5As shown, it includes a vertical mounting column 1, which is a rectangular parallelepiped structure. A vertical guide rail 2 is provided on the front side of the mounting column 1. A slider 4 is slidably connected to the vertical guide rail 2. The slider 4 is provided with a detection component 5 that slides with the slider 4. The mounting column 1 is also provided with a transmission component 6. The transmission component 6 includes a motor 6-1 fixed to the top of the mounting column 1, and a screw rod 6-2 in the same direction as the vertical guide rail 2. The screw rod 6-2 is installed on the left or right side of the mounting column 1. The bottom end of the screw rod 6-2 is rotatably connected to the mounting column 1 through a bearing. The top end of the screw rod 6-2 is connected to the output end of the motor 6-1 and rotates under the drive of the motor 6-1. A nut seat 6-3 is slidably matched on the screw rod 6-2. The nut seat 6-3 is slidably matched with the nut seat 6-3. -3 extends out a connecting arm laterally and is connected to a slider 4, so that under the drive of a motor 6-1, a screw rod 6-2 rotates and drives a nut seat 6-3 to slide, and a nut seat 6-3 drives a slider 4, and the slider 4 slides up and down reciprocatingly along the vertical guide rail 2. A detection component 5 is provided on the slider, and the detection component 5 includes a positioning column 5-1 and a movable detection head. The positioning column 5-1 is a square column structure, and a vertical square through groove 4-1 is provided on the slider 4. The positioning column 5-1 is embedded in the square through groove 4-1 and fixed. The positioning column 5-1 is arranged in the same direction as the vertical guide rail 2, and a movable probe 5-2 is connected to the bottom end of the positioning column 5-1. In this embodiment, the movable probe 5-2 can rotate along the bottom end of the positioning column 5-1.

[0038] A pulley 7-2 group 7 and a traction rope 8 are provided at the top of the mounting column 1. The pulley 7-2 group 7 includes a bracket 7-1 fixed to the top of the mounting column 1. Two pulleys 7-2 are rotatably connected to the bracket 7-1. The two pulleys 7-2 are respectively close to the front and rear sides of the mounting column 1 and are arranged in a horizontal straight line. The traction rope 8 passes through the two pulleys 7-2 in sequence and forms a sliding connection with the pulleys 7-2. The traction rope 8 is usually made of a steel wire rope. The two ends of the traction rope 8 pass through the corresponding pulleys 7-2 and hang down to the front and rear sides of the mounting column 1. The traction rope 8 at the front side The end of the guide rope 8 is connected to the coil spring member 3, and the end of the traction rope 8 located at the rear side is connected to the slider 1 4. The coil spring member 3 includes two mounting brackets 3-1 fixed to the bottom of the mounting column 1 and arranged oppositely. The opposite surfaces of the mounting brackets 3-1 are provided with mounting holes. A fixed shaft 3-2 is inserted into the mounting holes of the two mounting brackets 3-1. A coil spring 3-3 is wound around the fixed shaft 3-2. A connecting piece is provided on the movable end of the coil spring 3-3. The other end of the connecting piece is connected to the end of the traction rope 8 through a fastener, so that the coil spring member 3 is connected to the traction rope 8. That is, when the slider 1 slides up and down along the mounting column 1, the coil spring 3-3 always pulls the slider through the traction rope 8, so that the slider can not only balance the center of gravity of the mounting column 1 during the up and down sliding, but also the tension of the coil spring 3-3 can balance the inertia generated when the positioning column 5-1 and the slider 1 4 slide, so as to avoid the sliding inertia affecting the detection of the movable probe 5-2.

[0039] In the present embodiment, a measuring instrument is also provided, including a measuring instrument body, the measuring instrument body including a base 9 with a workbench, a gantry is provided on the base 9, the gantry is located above the workbench, the gantry includes a crossbeam 10 and support legs 11 located at both ends of the crossbeam 10, the base 9 is provided with a horizontal guide rail 12 at the support leg 11, that is, two horizontal guide rails 12 are arranged parallel to each other, a slider 2 13 is slidably connected to the horizontal guide rail 12, the gantry is slidably connected to the horizontal guide rail 12 through the slider 2 13, the base 9 is provided with a transmission component 2 14 for driving the slider 2 13 to slide at one of the support legs 11, that is, Only one of the two horizontal guide rails 12 is provided with a transmission component 2 14, and a counterweight block 15 is provided on the support leg 11 on the same side of the transmission component 2 14. The counterweight block 15 is connected to the support leg 11 so that the weight of the support leg 11 is greater than that of the other support leg 11. When the support leg 11 provided with the transmission component 2 14 serves as a driving force to drive the two support legs 11 to slide synchronously along the horizontal guide rail 12, an asymmetric center of gravity of the two support legs 11 will appear. Therefore, the counterweight block 15 can increase the weight of the support leg 11 used as the drive, and the purpose of stable sliding can be achieved by increasing the weight of the support leg 11.

[0040] The horizontal guide rail 16 is provided on the crossbeam 10 and is perpendicular to the horizontal guide rail 12. A slider 17 is slidably connected to the horizontal guide rail 16. The mounting column 1 in the lifting detection structure is slidably connected to the crossbeam 10 through the slider 17. The crossbeam 10 is provided with a transmission component 18 for driving the slider 17 to slide, thereby realizing the movement of the slider in the three coordinate directions.

[0041] Among them, the transmission component 2 14 includes a motor 2 14-1 fixed on the base 9 and a screw rod 2 14-2 in the same direction as the vertical guide rail 2, the screw rod 2 14-2 is connected to the output end of the motor 2 14-1 and rotates under the drive of the motor 2 14-1, and the screw rod 2 14-2 is slidably matched with a nut seat 2 14-3, and the nut seat 2 14-3 is connected to the slider 2 13; the transmission component 3 18 includes a motor 3 18-1 fixed on the beam 10 and a screw rod 3 18-2 in the same direction as the vertical guide rail 2, the screw rod 3 18-2 is connected to the output end of the motor 3 18-1 and rotates under the drive of the motor 3 18-1, and the screw rod 3 18-2 is slidably matched with a nut seat 3 18-3, and the nut seat 3 18-3 is connected to the slider 3 17.

[0042] Through the transmission assembly, each slider can slide back and forth more stably and accurately on the corresponding guide rail.

[0043] In addition, the bottom end of the mounting column 1 is bent toward the rear side to form a horizontal mounting portion 1-1, and the coil spring member 3 and the nut seat three 18-3 are correspondingly installed at the top and bottom of the horizontal mounting portion 1-1, so that a balance is formed between the coil spring 3-3 and the nut seat three 18-3, thereby preventing the mounting column 1 from forming a center of gravity shift under the pulling force of the coil spring 3-3.

[0044] The materials of the mounting column 1, the positioning column 5-1, the base 9, the crossbeam 10 and the supporting leg 11 are all made of marble, and the marble surface has high precision, which reduces the error of the measuring instrument.

[0045] The measuring instrument is also provided with a protective shell 19 to protect the transmission components, guide rails and slide blocks from foreign matter and dust.

[0046] In addition, the motor in the above transmission assembly can be replaced by a cylinder or a hydraulic cylinder.

[0047] The movable probe 5-2 in the measuring instrument performs reciprocating sliding along the vertical mounting column 1 through the slider 1 4 and the positioning column 5-1 to achieve movement in the Z coordinate direction, performs horizontal reciprocating movement along the base 9 through the slider 2 13 and the gantry to achieve movement in the Y coordinate direction, and performs another horizontal reciprocating movement along the beam 10 through the slider 3 17 to achieve movement in the X coordinate direction.

[0048] The present utility model is not limited to the above-mentioned optimal implementation mode. Anyone can derive other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in the shape or structure, all those having the same or similar technical solutions as the present application fall within the protection scope of the present utility model.

Claims

1. A lifting detection structure, characterized in that: The utility model comprises a vertical mounting column (1), one side of the mounting column (1) is provided with a vertical guide rail (2), the bottom of the other side opposite to the mounting column (1) is provided with a coil spring component (3), the vertical guide rail (2) is slidably connected with a slider (4), the slider (4) is provided with a detection component (5) sliding with the slider (4), the mounting column (1) is provided with a transmission component (6) driving the slider (4) to slide, the top of the mounting column (1) is provided with a pulley (7-2) group (7) and a traction rope (8) slidably matched with the pulley (7-2) group (7), one end of the traction rope (8) is connected to the slider (4), and the other end is connected to the coil spring component (3).

2. The lifting detection structure according to claim 1, characterized in that: The coil spring component (3) comprises two mounting frames (3-1) fixed to the bottom of the mounting column (1) and arranged opposite to each other, and a fixed shaft (3-2) connected between the two mounting frames (3-1); a coil spring (3-3) is wound around the fixed shaft (3-2); and the coil spring (3-3) is connected to a traction rope (8).

3. The lifting detection structure according to claim 2, characterized in that: The pulley (7-2) group (7) comprises a bracket (7-1) fixed to the top of the mounting column (1) and a pulley (7-2) mounted on the bracket (7-1). The pulleys (7-2) are two in number and are arranged in a horizontal straight line. The traction rope (8) is matched to the two pulleys (7-2) so that one end of the traction rope (8) passes through a pulley (7-2) and vertically downwardly connects to the coil spring member (3), and the other end of the traction rope (8) passes through another pulley (7-2) and vertically downwardly connects to a slider (4).

4. The lifting detection structure according to claim 2, characterized in that: The transmission assembly (6) comprises a motor (6-1) fixed on the mounting column (1) and a screw rod (6-2) in the same direction as the vertical guide rail (2); the screw rod (6-2) is connected to the output end of the motor (6-1) and rotates under the drive of the motor (6-1); a nut seat (6-3) is slidably matched on the screw rod (6-2); and the nut seat (6-3) is connected to the slider (4).

5. The lifting detection structure according to claim 2, characterized in that: The detection assembly (5) comprises a positioning column (5-1) and a movable probe (5-2); the positioning column (5-1) is a square column structure; the slider (4) is provided with a square through slot (4-1) for the positioning column (5-1) to be embedded; the positioning column (5-1) is arranged in the same direction as the vertical guide rail (2); and the bottom end of the positioning column (5-1) is connected to the movable probe (5-2).

6. A measuring instrument, characterized in that The measuring instrument comprises a measuring instrument body, the measuring instrument body comprises a base (9) with a workbench, a gantry is arranged on the base (9), the gantry comprises a crossbeam (10) and supporting legs (11) located at both ends of the crossbeam (10), the base (9) is provided with a horizontal guide rail (12) at the supporting legs (11), a slider (13) is slidably connected to the horizontal guide rail (12), the gantry is slidably connected to the horizontal guide rail (12) through the slider (13), the base (9) is provided with a transmission component (14) at one of the supporting legs (11) for driving the slider (13) to slide, a counterweight (15) is arranged on the supporting leg (11) on the same side as the transmission component (14), and a lifting detection structure as described in any one of claims 1 to 5 is slidably connected to the crossbeam (10).

7. The measuring instrument according to claim 6, characterized in that The crossbeam (10) is provided with a second horizontal guide rail (16) perpendicular to the first horizontal guide rail (12); a third slider (17) is slidably connected to the second horizontal guide rail (16); the mounting column (1) in the lifting detection structure is slidably connected to the crossbeam (10) via the third slider (17); and a transmission component (18) for driving the third slider (17) to slide is provided on the crossbeam (10).

8. The measuring instrument according to claim 7, characterized in that: The transmission assembly 2 (14) comprises a motor 2 (14-1) fixed on the base (9) and a screw rod 2 (14-2) in the same direction as the vertical guide rail (2), the screw rod 2 (14-2) is connected to the output end of the motor 2 (14-1) and rotates under the drive of the motor 2 (14-1), and a nut seat 2 (14-3) is slidably matched on the screw rod 2 (14-2), and the nut seat 2 (14-3) is connected to the slider 2 (13); The transmission assembly three (18) comprises a motor three (18-1) fixed on the crossbeam (10) and a screw rod three (18-2) in the same direction as the vertical guide rail (2), the screw rod three (18-2) is connected to the output end of the motor three (18-1) and rotates under the drive of the motor three (18-1), and a nut seat three (18-3) is slidably matched on the screw rod three (18-2), and the nut seat three (18-3) is connected to the slider three (17).

9. The measuring instrument according to claim 8, characterized in that The bottom end of the mounting column (1) is bent toward the rear side to form a horizontal mounting portion (1-1), and the coil spring component (3) and the nut seat three (18-3) are correspondingly arranged at the top and bottom of the horizontal mounting portion (1-1).

10. The measuring instrument according to claim 7, characterized in that: The materials of the installation column (1), the positioning column (5-1), the base (9), the crossbeam (10) and the supporting legs (11) are all marble.

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