Dimension measuring device for CNC machining

Abstract

The utility model discloses a size measuring device for CNC (computer numerical control) processing, which relates to the technical field of CNC processing and structurally comprises a base, a turntable, a limiting mechanism and a measuring mechanism. A motor is installed in the base, a rotating shaft is fixedly connected to the output end of the motor, a rotating disc is fixedly connected to the rotating shaft, limiting mechanisms are fixedly connected to the two sides of the top end of the base, each limiting mechanism comprises three fixing rods located on the two sides and the upper portion of the rotating disc, and strip-shaped grooves are formed in the sides, facing the rotating disc, of the three fixing rods. The measuring mechanism comprises a laser scanner installed on the front side of the top end of the base and a projection display screen installed on the rear side of the top end of the base. The position of a workpiece is automatically adjusted through the limiting mechanism and the rotary table, the contour of the workpiece is directly projected to the display screen through the laser scanner, a user can visually observe needed size data through scales on the display screen, operation is easy, and measurement accuracy is high.

Description

Technical Field

[0001] The utility model relates to the technical field of CNC processing, in particular to a size measuring device for CNC processing. Background Art

[0002] CNC is the abbreviation of computer numerical control, which is an automatic machine tool controlled by a program. It uses digital information to control the movement and processing of machine tools, and better solves the problem of complex, precise, small batch, and multi-variety parts processing. It is a flexible and high-efficiency automatic machine tool. It is widely used in any field of mechanical processing, and is the development trend of mold processing and an important and necessary technical means.

[0003] Among them, the patent publication number "CN220330754U" records a "CNC processing platform that is convenient for measuring the length of a workpiece", which includes a base, a first drive component, a cutting component and a second drive component. The second drive component is installed on the base, and a support plate is installed on the upper end of the base. The first drive component and the cutting component are installed on the support plate. A placement table is installed on the upper end of the second drive component of the base. An operating table is provided on the upper end of the placement table. L-shaped frames are embedded on both sides of the placement table. The L-shaped frames are fixed on the L-shaped frames by fastening bolts. Waist holes are opened on the end faces of the two L-shaped frames. The patent discloses a CNC processing platform that is convenient for measuring the length of a workpiece. A laser transceiver, a measuring scale and a pointer are arranged on both sides of the operating table. The laser transceiver is aimed at the workpiece being processed on the operating table for irradiation until the laser receiver receives the laser and stops. At this time, the pointer points to the measuring scale, thereby measuring the workpiece, which is convenient for the user to operate and observe.

[0004] However, this type of measuring device still has certain problems during use, such as:

[0005] The outer contours of some workpieces are not regular shapes. Measuring the length of the workpiece alone is of little significance for measuring irregular parts and cannot provide effective information for processing the workpiece. In addition, the measuring device can only obtain one length data. If you want to perform multilateral length measurement on the workpiece, you need to manually adjust the position of the workpiece, which is complicated to operate and has low measurement efficiency. Utility Model Content

[0006] The purpose of the utility model is to provide a CNC machining dimension measuring device to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CNC-processed dimension measuring device, comprising a base, a motor is installed in the base, a rotating shaft is fixedly connected to the output end of the motor, a rotating disk is fixedly connected to the top of the rotating shaft, vertical fixing rods are fixedly connected to the centers of both sides of the top of the base, a horizontal fixing rod is fixedly connected to the top of two vertical fixing rods, and strip grooves are opened on the three fixing rods facing the rotating disk, and limited telescopic rods are slidably connected in the strip grooves, and annular grooves are opened at the bottoms of the limited telescopic rods;

[0008] The measuring mechanism comprises a vertical plate fixedly connected to the front side of the top of the base, a laser scanner is embedded on the side of the vertical plate facing the turntable, a projection display screen is fixedly connected to the rear side of the top of the base, and scale lines are engraved on the surface of the projection display screen.

[0009] As a preferred solution of the utility model, the protruding portion of the edge of the strip-shaped groove is stuck in the annular groove provided at the bottom of the limiting telescopic rod.

[0010] As a preferred solution of the utility model, a hole is formed at the junction of the annular groove and the edge of the strip groove, and a telescopic button is installed in the hole.

[0011] As a preferred solution of the utility model, the motor is a servo motor.

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

[0013] 1. The utility model can directly project the outer contour of the workpiece onto the display screen through a laser scanner, which is not limited by the shape of the workpiece and has a wide range of applications. The workpiece measurement data can be intuitively obtained according to the scale on the projection display screen, which is fast, accurate and easy to operate;

[0014] 2. The utility model automatically adjusts the position of the workpiece through the turntable, without manual operation, to achieve rapid measurement of multiple sets of data, effectively shorten the measurement time and improve the measurement efficiency;

[0015] 3. The utility model controls the limit telescopic rod to slide to a suitable position in the strip groove, and extends the limit telescopic rod to fix the workpiece, thereby effectively preventing the workpiece from shaking or deviating during measurement, resulting in inaccurate measurement data. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a disassembled diagram of the overall structure of the utility model;

[0018] Figure 3 It is an enlarged view of the position-limiting telescopic rod of the utility model.

[0019] In the attached figure:

[0020] 1. Base; 100. Motor; 110. Rotating shaft; 120. Turntable; 2. Limiting mechanism; 200. Vertical fixing rod; 210. Horizontal fixing rod; 220. Bar groove; 230. Limiting telescopic rod; 231. Annular groove; 232. Hole; 233. Telescopic button; 3. Measuring mechanism; 300. Vertical plate; 310. Laser scanner; 320. Projection display screen; 321. Scale line. DETAILED DESCRIPTION

[0021] 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 without creative work are within the scope of protection of the utility model.

[0022] See also Figures 1 to 3 , the utility model provides a technical solution:

[0023] A CNC machining dimension measuring device comprises a base 1, a motor 100 is installed in the base 1, a rotating shaft 110 is fixedly connected to the output end of the motor 100, a rotating disk 120 is fixedly connected to the top of the rotating shaft 110, a limiting mechanism 2 is fixedly connected to the top of the base 1, the limiting mechanism 2 comprises vertical fixing rods 200 fixedly connected to the centers of both sides of the top of the base 1, a horizontal fixing rod 210 is fixedly connected to the tops of the two vertical fixing rods 200, and the three fixing rods are all provided with strip grooves 220 on one side facing the rotating disk 120, and the strip grooves 220 are all slidably connected to the limiting telescopic rods 230, and the bottoms of the limiting telescopic rods 230 are all provided with annular grooves 231;

[0024] The measuring mechanism 3 comprises a vertical plate 300 fixedly connected to the front side of the top of the base 1, a laser scanner 310 is embedded on the side of the vertical plate 300 facing the turntable 120, a projection display screen 320 is fixedly connected to the rear side of the top of the base 1, and scale lines 321 are engraved on the surface of the projection display screen 320.

[0025] In a specific embodiment, the workpiece is located on the turntable 120, and the three limit telescopic rods 230 slide to a suitable position and extend to fix the workpiece. The laser scanner 310 is started to scan the contour of the workpiece and present it on the projection display screen 320. The required dimensional data can be intuitively obtained according to the scale lines 321 on the projection display screen 320, which effectively improves the measurement speed and accuracy. The limit telescopic rods 230 are retracted, and the motor 100 is started to rotate the turntable 120 to adjust the workpiece to the next measurement angle. The limit and measurement operations are repeated without manual operation, saving measurement time, effectively improving measurement efficiency, and increasing the practicality of the measuring device.

[0026] See also Figures 2 to 3 The protruding portion of the edge of the strip groove 220 is stuck in the annular groove 231 opened at the bottom of the limiting telescopic rod 230. The annular groove 231 is provided with a hole 232 at the junction with the edge of the strip groove 220, and a telescopic button 233 is installed in the hole 232.

[0027] In a specific embodiment, the telescopic button 233 in the annular groove 231 of the limiting telescopic rod 230 retracts, and the limiting telescopic rod 230 slides in the strip groove 220. When it reaches a suitable position, the telescopic button 233 pops out, and the limiting telescopic rod 230 is fixed in the strip groove 220 and cannot move, effectively preventing the limiting telescopic rod 230 from sliding accidentally or the limiting telescopic rod 230 on the vertical fixed rod 200 from sliding down due to gravity, resulting in unstable fixation of the workpiece and affecting the measurement results.

[0028] See also Figures 1 to 3 , the motor 100 is a servo motor.

[0029] In a specific embodiment, the rotation speed and angle of the motor 100 are set in advance. After the measurement is completed, the motor 100 drives the turntable 120 to rotate stably at a low speed to adjust the position of the workpiece, effectively avoiding the workpiece from being thrown out due to excessive rotation, thereby damaging the workpiece or causing harm to the staff, while effectively reducing labor costs and increasing the safety and practicality of the measuring device.

[0030] Working principle: first, place the workpiece on the turntable 120, start the motor 100 to rotate the turntable 120 to adjust the workpiece to the measuring position, retract the telescopic buttons 233 on the three limit telescopic rods 230, and the limit telescopic rods 230 slide to a suitable position in the strip groove 220. The telescopic buttons 233 pop out to fix the position of the limit telescopic rods 230, and the limit telescopic rods 230 extend to fix the workpiece, and start the laser scanner 310 to project the outer contour of the workpiece onto the projection display screen 320. The workpiece size data can be read according to the scale lines 321 on the projection display screen 320. It is clear and intuitive, which is convenient for users to observe and record. After recording, the limit telescopic rods 230 are retracted, and the motor 100 is started again to adjust the workpiece to the next measurement angle and repeat the operation. The operation is simple and quick, which effectively improves the measurement efficiency and increases the practicality of the size measuring device.

[0031] 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 CNC machining dimension measuring device, characterized in that: include: A base (1), wherein a motor (100) is installed in the base (1), an output end of the motor (100) is fixedly connected to a rotating shaft (110), a top end of the rotating shaft (110) is fixedly connected to a rotating disk (120), a top end of the base (1) is fixedly connected to a limiting mechanism (2), the limiting mechanism (2) comprises vertical fixing rods (200) fixedly connected to the centers of both sides of the top end of the base (1), two top ends of the vertical fixing rods (200) are fixedly connected to a horizontal fixing rod (210), three fixing rods are provided with strip grooves (220) on one side facing the rotating disk (120), a limiting telescopic rod (230) is slidably connected in the strip grooves (220), and an annular groove (231) is provided at the bottom of each limiting telescopic rod (230); A measuring mechanism (3), the measuring mechanism (3) comprising a vertical plate (300) fixedly connected to the front side of the top of the base (1), a laser scanner (310) being embedded on the side of the vertical plate (300) facing the turntable (120), a projection display screen (320) being fixedly connected to the rear side of the top of the base (1), and a scale mark (321) being engraved on the surface of the projection display screen (320).

2. A CNC machining dimension measuring device according to claim 1, characterized in that: The protruding portion of the edge of the strip-shaped groove (220) is stuck in the annular groove (231) provided at the bottom of the limiting telescopic rod (230).

3. A CNC machining dimension measuring device according to claim 2, characterized in that: The annular groove (231) is provided with a hole (232) at the junction with the edge of the strip groove (220), and a telescopic button (233) is installed in the hole (232).

4. The CNC dimension measuring device according to claim 1, characterized in that: The motor (100) is a servo motor.

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