Horizontal detection device for numerical control machine tool

Abstract

The utility model discloses a levelness detection device for a numerical control machine tool, which relates to the technical field of levelness detection and comprises a box body and a shell, and a detection assembly used for carrying out large-range levelness detection on the upper surface of a workpiece is arranged between the box body and the shell. The detection assembly comprises a servo motor connected with the inner wall of the box body and a plurality of rotating shafts rotationally connected with the box body and the shell; according to the utility model, the servo motor is started, the dial indicator detects the center of the top of the servo motor along the outer ring of the disc, and the detection path is a flat spiral line and then reaches the outer ring of the disc, so that the upper surface of a workpiece placed on the disc can be subjected to large-range levelness detection, and the overall levelness is obtained; the horizontal detection device for precision detection of the numerical control machine tool solves the problems that an existing horizontal detection device for precision detection of the numerical control machine tool only detects a plurality of points on the upper surface of a workpiece, so that the detection precision is poor, and the overall levelness cannot be obtained more accurately.

Description

Technical Field

[0001] The utility model relates to the technical field of level detection, in particular to a level detection device for a numerically controlled machine tool. Background Art

[0002] When a machine tool is processing a workpiece, in order to ensure that the workpiece is level, it is necessary to perform a level detection on the workpiece to ensure the processing accuracy of the workpiece. However, the existing level detection device for CNC machine tool precision detection only detects multiple points on the upper surface of the workpiece, which has the problem of poor detection accuracy and cannot more accurately determine the overall levelness.

[0003] A Chinese patent with patent number CN202122679711.4 discloses a horizontal detection device for precision detection of CNC machine tools, including a support assembly, wherein the support assembly includes a support platform, support vertical plates are fixedly installed on the top of both ends of the support platform, and the top of the support vertical plates is fixedly connected to the support top plate. A driving device is installed on the support assembly, and a clamping assembly is installed on the support platform. A detection mechanism is provided above the support platform; the driving device includes a servo motor, and the output shaft of the servo motor is fixedly connected to the rotating shaft. By setting a clamping assembly, the workpiece is fixed by the clamping assembly to avoid movement of the workpiece during detection, thereby improving the detection stability and accuracy, and using multiple pressure sensors to contact the top surface of the workpiece, and judging whether the top surface of the workpiece is horizontal by comparing the indications of the multiple pressure sensors. It is easy to use and has low use cost.

[0004] However, in the implementation of relevant technologies, it was found that the above-designed level detection device for CNC machine tool precision detection has the following problems: although the level detection device for CNC machine tool precision detection uses multiple pressure sensors to contact the top surface of the workpiece and judges whether the top surface of the workpiece is horizontal by comparing the readings of multiple pressure sensors, it only detects multiple points on the upper surface of the workpiece, resulting in poor detection accuracy and the inability to more accurately derive the overall levelness. In view of this, a level detection device for CNC machine tools is provided to overcome the above-mentioned defects. Utility Model Content

[0005] The purpose of the utility model is to provide a level detection device for a numerically controlled machine tool to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the utility model provides a level detection device for a CNC machine tool, comprising a box body and a shell, a detection component for performing a large-scale level detection on the upper surface of a workpiece is arranged between the box body and the shell, the detection component comprises a servo motor connected to the inner wall of the box body and a plurality of rotating shafts rotatably connected to the box body and the shell, one end of one of the rotating shafts is connected to the driving end of the servo motor, a transmission wheel is installed on the rotating shaft, a transmission belt is connected for transmission between two of the transmission wheels, a bevel gear and a screw rotatably connected to the box body are respectively installed at one end of the two rotating shafts located in the box body, a guide rod is installed on the inner wall of the box body, a limit block threadably connected to the screw is slidably connected to the outer wall of the guide rod, the limit block is connected to a micrometer, the inner bottom wall of the box body is rotatably connected to a disc, and the outer wall of the disc is installed with a ring gear meshing with the bevel gear.

[0007] Furthermore, an electric telescopic rod is installed at the bottom of the limit block, the telescopic end at the bottom of the electric telescopic rod is connected to the micrometer, the detection end of the micrometer is located at the bottom of the micrometer, and a control panel is installed on the front side of the shell, and the electric telescopic rod and the servo motor are both electrically connected to the control panel.

[0008] Furthermore, a plurality of columns are installed on the top of the ring gear, a sliding rod is slidably connected to the column, a clamping block is installed at one end of the sliding rod, and a compression spring sleeved on the outside of the sliding rod is installed between the clamping block and the column.

[0009] Furthermore, a box door is arranged on the front side of the box body, a hinge is installed between the box door and the box body, the box door is hinged to the front side of the box body through the hinge, and a lock handle is installed on the front side of the box door.

[0010] Furthermore, legs are installed at the four corners of the bottom of the box body, and locking universal wheels are installed at the bottom ends of the legs.

[0011] Furthermore, an LED lamp is installed on the inner wall of the box, the LED lamp is electrically connected to the control panel, and the inner wall of the box is coated with a reflective coating.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the servo motor is started, and the micrometer is made to detect along the outer ring of the disc to the center of the top of the servo motor. The detection path is a flat spiral line, and then to the outer ring of the disc. Therefore, a large-scale level detection can be performed on the upper surface of the workpiece placed on the disc to obtain the overall levelness, which solves the problem that the existing level detection device for precision detection of CNC machine tools only detects multiple points on the upper surface of the workpiece and has poor detection accuracy and cannot more accurately obtain the overall levelness.

[0014] 2. In the utility model, the compression spring in the initial state makes the clamping block away from the column. The clamping block is pulled by the sliding rod. After the workpiece is placed on the disc, the elastic reset principle of the compression spring is utilized to clamp the workpiece, thereby preventing the workpiece from moving during detection, thereby improving the detection stability and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation on the present invention. Obviously, the accompanying drawings described below are only some embodiments. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work. In the accompanying drawings:

[0016] Figure 1 This is a schematic diagram of the internal structure of a shell in a level detection device for a CNC machine tool according to the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of a box in a level detection device for a CNC machine tool according to the utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of a level detection device for a CNC machine tool according to the utility model;

[0019] Figure 4 for Figure 1 A magnified view of the structure at center A;

[0020] Figure 5 for Figure 1 A magnified view of the structure at point B.

[0021] In the figure:

[0022] 1. Box; 2. Shell;

[0023] 3. Detection assembly; 301. servo motor; 302. rotating shaft; 303. transmission wheel; 304. transmission belt; 305. bevel gear; 306. screw rod; 307. guide rod; 308. limit block; 309. dial gauge; 310. disc; 311. ring gear;

[0024] 4. Electric telescopic rod; 5. Control panel; 6. Limit ring; 7. Column; 8. Slide bar; 9. Clamp block; 10. Compression spring; 11. Anti-slip block; 12. Box door; 13. Hinge; 14. Lock handle; 15. Observation window; 16. Leg; 17. Locking universal wheel; 18. LED light.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] The existing level detection device for precision detection of CNC machine tools utilizes multiple pressure sensors to contact the top surface of the workpiece and determines whether the top surface of the workpiece is horizontal by comparing the readings of the multiple pressure sensors. However, it only detects multiple points on the upper surface of the workpiece, resulting in poor detection accuracy and the inability to more accurately determine the overall levelness.

[0030] Embodiment 1

[0031] Depend on Figure 1-Figure 5 The utility model provides a level detection device for a numerically controlled machine tool.

[0032] Specifically, by Figure 1 , Figure 2 , Figure 3 and Figure 4The invention provides a workpiece detection device, which includes a box body 1 and a shell body 2. The shell body 2 is installed in the middle of one side of the box body 1. A detection component 3 for performing a large-scale horizontal detection on the upper surface of the workpiece is arranged between the box body 1 and the shell body 2. The detection component 3 includes a servo motor 301 connected to the inner wall of the box body 1 and a plurality of rotating shafts 302 rotatably connected to the box body 1 and the shell body 2. One end of one of the rotating shafts 302 is connected to the driving end of the servo motor 301. A transmission wheel 303 is installed on the rotating shaft 302. A transmission belt 304 is connected between the two transmission wheels 303. In order to ensure stable transmission and better transmission effect, the number of the transmission belts 304 is two. The two rotating shafts 302 A bevel gear 305 and a screw rod 306 rotatably connected to the box body 1 are respectively installed at one end located in the box body 1, a guide rod 307 is installed on the inner wall of the box body 1, a limit block 308 threadedly connected to the screw rod 306 is slidably connected to the outer wall of the guide rod 307, a micrometer 309 is connected to the limit block 308, a disc 310 is rotatably connected to the inner bottom wall of the box body 1, a ring gear 311 meshingly connected to the bevel gear 305 is installed on the outer wall of the disc 310, and a limit ring 6 connected to the inner bottom wall of the box body 1 is rotatably connected to the outer wall of the disc 310, thereby ensuring the stability of the disc 310 during rotation and avoiding the problem of the disc 310 being offset during rotation;

[0033] An electric telescopic rod 4 is installed at the bottom of the limit block 308, and the telescopic end at the bottom of the electric telescopic rod 4 is connected to the micrometer 309. The detection end of the micrometer 309 is located at the bottom of the micrometer 309. A control panel 5 is installed on the front side of the shell 2. The electric telescopic rod 4 and the servo motor 301 are both electrically connected to the control panel 5. By setting the electric telescopic rod 4, it is convenient to adjust the height of the micrometer 309, so that the machine tool can detect workpieces of different heights during the processing of the workpiece, thereby ensuring the processing accuracy of workpieces of different heights. By setting the control panel 5, it is convenient to control the electric telescopic rod 4 and the servo motor 301, making the operation more convenient and quick; box A box door 12 is provided on the front side of the box body 1, and a hinge 13 is installed between the box door 12 and the box body 1. The box door 12 is hinged to the front side of the box body 1 through the hinge 13, and a lock handle 14 is installed on the front side of the box door 12. By setting the hinge 13 and the lock handle 14, it is convenient to open and close the box door 12 on the front side of the box body 1. It should be noted that an observation window 15 is installed on the front side of the box door 12. By setting the observation window 15, it is convenient for relevant staff to observe the internal situation of the box body 1 from the outside of the box body 1, that is, to observe the inspection process of the workpiece; legs 16 are installed at the four corners of the bottom of the box body 1, and locking universal wheels 17 are installed at the bottom ends of the legs 16. By setting the legs 16, an increase The height of the box 1 is convenient for relevant staff to use the horizontal detection device for CNC machine tools; an LED lamp 18 is installed on the inner wall of the box 1, and the LED lamp 18 is electrically connected to the control panel 5. The inner wall of the box 1 is coated with a reflective coating. By setting the LED lamp 18 and using the control panel 5, it is convenient to illuminate the inside of the box 1, so as to better observe the detection process of the workpiece. By setting the reflective coating, the fill light effect is improved, and better observation can be performed; start the servo motor 301 to rotate one of the rotating shafts 302, and make the other rotating shaft 302 rotate synchronously through the transmission wheel 303 and the transmission belt 304, so that the bevel gear 305 and the screw 306 are rotated. 06 rotates, and then the limit block 308 is moved left and right through the guide rod 307 and the disk 310 is rotated through the ring gear 311, so that the micrometer 309 detects along the outer ring of the disk 310 to the center of the top of the servo motor 301, and the detection path is a flat spiral line, and then to the outer ring of the disk 310. Therefore, a large-scale horizontal detection of the upper surface of the workpiece placed on the disk 310 can be performed to obtain the overall horizontality, which solves the problem that the existing horizontal detection device for precision detection of CNC machine tools only detects multiple points on the upper surface of the workpiece and has poor detection accuracy and cannot more accurately obtain the overall horizontality.

[0034] Embodiment 2

[0035] On the basis of the first embodiment, further, as a specific implementation mode of the present utility model, the present utility model provides a level detection device for a CNC machine tool.

[0036] Specifically, by Figure 1 and Figure 5 It is shown that a plurality of columns 7 are installed on the top of the ring gear 311, a slide bar 8 is slidably connected to the column 7, a clamping block 9 is installed at one end of the slide bar 8, and a compression spring 10 is installed between the clamping block 9 and the column 7 and is sleeved on the outside of the slide bar 8;

[0037] It should be noted that an anti-slip block 11 is installed at one end of the slide rod 8. By setting the anti-slip block 11, the movement of the slide rod 8 is limited to prevent the slide rod 8 from separating from the column 7, thereby ensuring the subsequent clamping effect on the workpiece. The compression spring 10 in the initial state makes the clamping block 9 move away from the column 7. After the clamping block 9 is pulled by the slide rod 8 and the workpiece is placed on the disk 310, the elastic reset principle of the compression spring 10 is used to clamp the workpiece, thereby preventing the workpiece from moving during detection, thereby improving the detection stability and accuracy.

[0038] Working principle:

[0039] Start the servo motor 301 to rotate one of the rotating shafts 302, and synchronize the other rotating shaft 302 through the transmission wheel 303 and the transmission belt 304, so that the bevel gear 305 and the screw 306 rotate, and then the limit block 308 moves left and right through the guide rod 307 and the disk 310 rotates through the ring gear 311, so that the micrometer 309 detects along the outer ring of the disk 310 to the center of the top of the servo motor 301, and the detection path is a flat spiral line, and then to the outer ring of the disk 310. Therefore, a large-scale horizontal detection of the upper surface of the workpiece placed on the disk 310 can be performed to obtain the overall horizontality, so as to solve the problem that the existing horizontal detection device for precision detection of CNC machine tools only detects multiple points on the upper surface of the workpiece and has poor detection accuracy and cannot obtain the overall horizontality more accurately.

[0040] The compression spring 10 in the initial state makes the clamp 9 move away from the column 7. The clamp 9 is pulled by the slide rod 8. After the workpiece is placed on the disk 310, the workpiece is clamped by utilizing the elastic reset principle of the compression spring 10, thereby preventing the workpiece from moving during detection, thereby improving the detection stability and accuracy.

[0041] The above is only a preferred embodiment of the present invention, and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can also be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the present invention.

Claims

1. A level detection device for a CNC machine tool, comprising a box (1) and a shell (2), characterized in that: A detection assembly (3) for performing a wide range horizontal detection on the upper surface of a workpiece is arranged between the box (1) and the shell (2); the detection assembly (3) comprises a servo motor (301) connected to the inner wall of the box (1) and a plurality of rotating shafts (302) rotatably connected to the box (1) and the shell (2); one end of one of the rotating shafts (302) is connected to the driving end of the servo motor (301); a transmission wheel (303) is mounted on the rotating shaft (302); a transmission belt (304) is connected between two of the transmission wheels (303); and the two rotating shafts (301) are connected to each other. A bevel gear (305) and a screw (306) rotatably connected to the box body (1) are respectively installed at one end of the box body (1), a guide rod (307) is installed on the inner wall of the box body (1), and a limit block (308) threadedly connected to the screw (306) is slidably connected to the outer wall of the guide rod (307), and a micrometer (309) is connected to the limit block (308), and a disc (310) is rotatably connected to the inner bottom wall of the box body (1), and a ring gear (311) meshingly connected to the bevel gear (305) is installed on the outer wall of the disc (310).

2. A level detection device for a CNC machine tool as claimed in claim 1, characterized in that: An electric telescopic rod (4) is installed at the bottom of the limit block (308); the telescopic end at the bottom of the electric telescopic rod (4) is connected to a dial gauge (309); the detection end of the dial gauge (309) is located at the bottom of the dial gauge (309); a control panel (5) is installed at the front side of the housing (2); the electric telescopic rod (4) and the servo motor (301) are both electrically connected to the control panel (5).

3. A level detection device for a CNC machine tool as claimed in claim 2, characterized in that: A plurality of columns (7) are installed on the top of the ring gear (311), a slide bar (8) is slidably connected to the column (7), a clamping block (9) is installed at one end of the slide bar (8), and a compression spring (10) sleeved on the outside of the slide bar (8) is installed between the clamping block (9) and the column (7).

4. A level detection device for a CNC machine tool as claimed in claim 3, characterized in that: The front side of the box body (1) is provided with a box door (12), a hinge (13) is installed between the box door (12) and the box body (1), the box door (12) is hinged to the front side of the box body (1) through the hinge (13), and a lock handle (14) is installed on the front side of the box door (12).

5. A level detection device for a CNC machine tool as claimed in claim 4, characterized in that: Support legs (16) are installed at the four corners of the bottom of the box body (1), and locking universal wheels (17) are installed at the bottom ends of the support legs (16).

6. A level detection device for a CNC machine tool as claimed in claim 5, characterized in that: An LED lamp (18) is installed on the inner wall of the box (1), the LED lamp (18) is electrically connected to the control panel (5), and the inner wall of the box (1) is coated with a reflective coating.

Images