Single-head numerical control carving machine capable of achieving self-adaptive adjustment of workpieces

Abstract

The utility model relates to the technical field of single-head numerical control engraving machines with workpieces adjusted in a self-adaptive mode, and discloses a single-head numerical control engraving machine with workpieces adjusted in a self-adaptive mode, which comprises a connecting frame, a U-shaped plate fixedly installed in the connecting frame, a detection assembly installed on the U-shaped plate, and a cutter measuring mechanism installed at the bottom end of the detection assembly. A laser distance measuring sensor is fixedly installed on the top wall of the U-shaped plate and used for measuring the position of the detection assembly, and the tool measuring mechanism controls the detection assembly in a linkage mode. According to the single-head numerical control carving machine with the workpiece self-adaptive adjustment function, through the detection assembly and the tool measuring assembly, when the longest tool is installed, the swing arm is limited to be horizontal, when a short tool is replaced, a measuring ball is subjected to resistance, the swing arm is kept to be in the horizontal state, a grid plate moves upwards, and a laser distance measuring sensor can obtain the compression distance; therefore, the self-adaption effect of the workpiece can be achieved during machining, and the device is located on the side, far away from the cutter, of the tool and does not affect machining.

Description

Technical Field

[0001] The utility model relates to the technical field of single-head CNC engraving machines for workpiece adaptive adjustment, and specifically relates to a single-head CNC engraving machine for workpiece adaptive adjustment. Background Technique

[0002] A CNC engraving machine is an automatically controlled processing machine, which can perform repetitive and deviation-free pattern engraving according to a pre-set engraving program. In the prior art, CNC engraving machines include single-head engraving machines and multi-head engraving machines. Publication No.: CN215041757U discloses a single-head CNC engraving machine for workpiece adaptive adjustment. By setting a clamping plate covering the entire workbench, when the device processes workpieces of different volumes, the device can still fix and limit them, thus avoiding the situation where the workpiece is not fixed and limited. When the single-head engraving machine engraves, the engraving head needs to be replaced according to different workpieces. After the engraving head is replaced and installed, it is easy to cause a deviation in the installation height of the engraving head before and after, resulting in a difference between the engraving depth and the design requirements during engraving. Directly positioning the workpiece with a tool is also likely to cause tool damage. Content of the Utility Model

[0003] (1) Technical Problems to be Solved

[0004] In view of the deficiencies of the prior art, the utility model provides a single-head CNC engraving machine for workpiece adaptive adjustment, which has the advantage of measuring the different heights of the workpiece, and solves the problem of machining accuracy error caused by the inability of the workpiece in the prior art to adapt to the tool.

[0005] (2) Technical Solutions

[0006] To achieve the above object, the utility model provides the following technical solution: A single-head CNC engraving machine for workpiece adaptive adjustment, including a connecting frame, a U-shaped plate is fixedly installed inside the connecting frame, a detection component is installed on the U-shaped plate, a tool measuring mechanism is installed at the bottom end of the detection component, and a laser distance sensor is fixedly installed on the top wall of the U-shaped plate for measuring the position of the detection component, and the tool measuring mechanism is linked to control the detection component.

[0007] In some embodiments, the detection component includes a sliding rod, a spring, a grating plate, an extension rod and a measuring ball. The grating plate is fixed to the upper end of the sliding rod. The sliding rod passes through the upper end of the bottom wall of the U-shaped plate and is inside it. The sliding rod is slidably connected to the U-shaped plate. The spring is sleeved on the upper end of the sliding rod and is inside the U-shaped plate. The upper end of the spring is fixed to the grating plate, and the lower end of the spring is fixed to the inner bottom wall of the U-shaped plate. The extension rod is fixedly installed at the bottom end of the sliding rod, the measuring ball is fixed to the end of the extension rod away from the sliding rod, an electric push rod is installed on one side of the extension rod, and the tool measuring mechanism is installed on the extension rod and connected to the output shaft of the electric push rod.

[0008] In some embodiments, the tool measuring mechanism includes a swing arm, a measuring block, and a rocker arm. The rocker arm is fixed to the swing arm, and there are two rocker arms and two swing arms, respectively located on both sides of the extension rod. One end of each rocker arm is hinged to the extension rod. The measuring block is sleeved on the two swing arms and is slidably connected thereto. The rocker arms are each hinged to the output shaft of the electric push rod.

[0009] In some embodiments, a fastening screw is installed on the measuring block. After the fastening screw is tightened, the measuring block and the swing arm can be fixed.

[0010] In some embodiments, a groove is provided on the upper surface of the measuring block, and the groove has a stepped structure.

[0011] In some embodiments, a positioning rod is fixedly installed on one side of the upper end of the extension rod. The positioning rod is parallel to the sliding rod. A sliding sleeve is fixedly installed on one side of the U-shaped plate. The upper end of the positioning rod passes through the sliding sleeve and is slidably connected thereto.

[0012] In some embodiments, a bracket is fixed to the other side of the upper end of the extension rod. The fixed end of the electric push rod is hinged to one end of the bracket away from the extension rod.

[0013] In some embodiments, a number of equally spaced positioning holes are provided on the connecting frame.

[0014] (III) Beneficial Effects

[0015] Compared with the prior art, the present utility model provides a single-head CNC engraving machine with workpiece self-adaptive adjustment, having the following beneficial effects:

[0016] 1. For the single-head CNC engraving machine with workpiece self-adaptive adjustment, through the detection component and the tool measuring component, the electric push rod is controlled to push the swing arm so that the measuring block can contact the tool. When installing the longest tool, the swing arm is horizontal. When replacing the short tool, the tool is lowered, and the measuring ball is subjected to resistance, keeping the swing arm back to the horizontal state. At this time, the grating plate moves upward, and the laser distance sensor can obtain the compressed distance, thereby obtaining the processing distance difference between the two tools. After retracting the swing arm, the distance that the tool needs to be lowered during processing can be obtained. Thus, the self-adaptive effect of the workpiece can be achieved during processing, and the device on the side far from the tool does not affect the processing.

[0017] 2. For the single-head CNC engraving machine with workpiece self-adaptive adjustment, by setting the measuring block, when the swing arm is horizontal and the measuring block contacts the tool, the tip of the tool is located in the groove. Transversely moving the measuring block can detect the horizontal state of the swing arm, achieving the effect of protecting the tool during detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present utility model;

[0019] Figure 2This is the front view of the structure of the present utility model;

[0020] Figure 3 This is the structural diagram of the detection component of the present utility model;

[0021] Figure 4 This is the tool measurement mechanism of the present utility model.

[0022] In the figure: 1. Connecting frame; 2. U-shaped plate; 3. Detection component; 301. Slide bar; 302. Spring; 303. Grating plate; 304. Extension rod; 305. Measuring ball; 306. Electric push rod; 307. Positioning rod; 308. Slide sleeve; 309. Bracket; 4. Tool measurement mechanism; 401. Swing arm; 402. Measuring block; 403. Rocker arm; 404. Fastening screw; 405. Groove; 5. Laser distance sensor; 6. Positioning hole. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0024] It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative position relationship and movement conditions between components in a specific posture. If this specific posture changes, the directional indication will also change accordingly.

[0025] In the present application, unless otherwise clearly specified and limited, terms such as "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0026] In the related art, CN215041757U discloses a single-head CNC engraving machine with workpiece self-adaptive adjustment. By setting a clamping plate covering the entire workbench, when the device processes workpieces of different volumes, the device can still fix and limit them, thus avoiding the situation where the workpiece is not fixed and limited. When the single-head engraving machine engraves, it is necessary to replace the engraving head according to different workpieces. After the engraving head is replaced and installed, it is easy to cause a deviation in the installation height of the engraving head before and after, resulting in a difference between the engraving depth and the design requirements. Directly positioning the workpiece with the tool is also likely to cause tool damage.

[0027] To solve the problems in the related art to a certain extent, the embodiment of the present application provides a single-head CNC engraving machine with workpiece self-adaptive adjustment. When in use, only need to control the electric push rod 306 to push the swing arm 401 so that the measuring block 402 can contact the tool. When the longest tool is installed, the swing arm 401 is horizontal. When the swing arm 401 is horizontal and the measuring block 402 contacts the tool, the tip of the tool is located in the groove 405. Horizontally move the measuring block 402, and the fastening screw 404 can fix the measuring block 402, which can detect the horizontal state of the swing arm 401. When replacing the short tool, lower the tool so that the measuring ball 305 is subjected to resistance. At this time, the slide rod 301 moves upward to stretch the spring 302, and the electric push rod 306 assists in contracting to keep the swing arm 401 back to the horizontal state. At this time, the grating plate 303 moves upward, and the laser distance sensor 5 can obtain the compressed distance, thereby obtaining the processing distance difference between the two tools. Retract the swing arm 401, and the distance that the tool needs to be lowered during processing can be obtained.

[0028] The following describes the present application in conjunction with the accompanying drawings and with reference to specific embodiments:

[0029] Combined with Figures 1 - 4 , the embodiment of the present application provides a single-head CNC engraving machine with workpiece self-adaptive adjustment, including a connecting frame 1. A U-shaped plate 2 is fixedly installed inside the connecting frame 1. A detection component 3 is installed on the U-shaped plate 2. A tool measuring mechanism 4 is installed at the bottom end of the detection component 3. A laser distance sensor 5 is fixedly installed on the top wall of the U-shaped plate 2 for measuring the position of the detection component 3. The tool measuring mechanism 4 controls the detection component 3 in a linkage manner.

[0030] In this implementation scheme: The connecting frame 1 is used to install at the position on one side of the machine tool spindle. The laser distance sensor 5 is a common distance measuring component in the prior art and has a display screen, and the measured distance can be observed at any time.

[0031] In some embodiments, the detection component 3 includes a slide bar 301, a spring 302, a grating plate 303, an extension rod 304, and a measuring ball 305. The grating plate 303 is fixed to the upper end of the slide bar 301. The slide bar 301 passes through the upper end of the bottom wall of the U-shaped plate 2 and is inside it. The slide bar 301 is slidably connected to the U-shaped plate 2. The spring 302 is sleeved on the upper end of the slide bar 301 and is inside the U-shaped plate 2. The upper end of the spring 302 is fixed to the grating plate 303, and the lower end of the spring 302 is fixed to the inner bottom wall of the U-shaped plate 2. The extension rod 304 is fixedly installed at the bottom end of the slide bar 301. The measuring ball 305 is fixed to one end of the extension rod 304 away from the slide bar 301. An electric push rod 306 is installed on one side of the extension rod 304. The tool measuring mechanism 4 is installed on the extension rod 304 and is connected to the output shaft of the electric push rod 306.

[0032] Specifically, the grating plate 303 cooperates with the laser distance sensor 5 to keep the measurement distance accurate. The measuring ball 305 is made of glass material and is more accurate when contacting other components.

[0033] In some embodiments, the tool measuring mechanism 4 includes swing arms 401, measuring blocks 402, and rocker arms 403. The rocker arms 403 are fixed to the swing arms 401. There are two rocker arms 403 and swing arms 401, which are respectively on both sides of the extension rod 304. One end of each rocker arm 403 is hinged to the extension rod 304. The measuring blocks 402 are sleeved on the two swing arms 401 and are slidably connected to them. The rocker arms 403 are both hinged to the output shaft of the electric push rod 306.

[0034] Specifically, the swing arms 401 can push the rocker arms 403. The swing arms 401 are provided with scales, and the scales can be read when the measuring blocks 402 move.

[0035] In some embodiments, fastening screws 404 are installed on the measuring blocks 402. After the fastening screws 404 are tightened, the measuring blocks 402 and the swing arms 401 can be fixed.

[0036] In some embodiments, a groove 405 is provided on the upper surface of the measuring block 402. The groove 405 is a stepped structure.

[0037] Specifically, the groove 405 can adapt to a series of tools such as face milling cutters and drills, and can keep the tip part inside the groove 405 to protect the tool.

[0038] In some embodiments, a positioning rod 307 is fixedly installed on one side of the upper end of the extension rod 304. The positioning rod 307 is parallel to the slide bar 301. A sliding sleeve 308 is fixedly installed on one side of the U-shaped plate 2. The upper end of the positioning rod 307 passes through the sliding sleeve 308 and is slidably connected to it.

[0039] Specifically, the positioning rod 307 is mainly used to keep the accuracy of the slide bar 301 when it slides.

[0040] In some embodiments, a bracket 309 is fixed to the other side of the upper end of the extension rod 304, and the fixed end of the electric push rod 306 is hinged to one end of the bracket 309 away from the extension rod 304.

[0041] Specifically, when the electric push rod 306 is energized, it can control the extension or contraction.

[0042] In some embodiments, a plurality of positioning holes 6 are provided in the connecting frame 1 at equidistant intervals.

[0043] Specifically, the positioning holes 6 are connected to the tool spindle housing by quick-release bolts.

[0044] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0045] In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0046] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A single-head CNC engraving machine with workpiece self-adaptive adjustment It is characterized in that: It includes a connecting frame (1). Inside the connecting frame (1), a U-shaped plate (2) is fixedly installed. A detection component (3) is installed on the U-shaped plate (2). At the bottom end of the detection component (3), a tool measurement mechanism (4) is installed. A laser distance sensor (5) is fixedly installed on the top wall of the U-shaped plate (2) for measuring the position of the detection component (3). The tool measurement mechanism (4) controls the detection component (3) in a linkage manner.

2. The single-head CNC engraving machine with workpiece adaptive adjustment according to claim 1, characterized in that: The detection component (3) includes a slide bar (301), a spring (302), a grating plate (303), an extension rod (304) and a measuring ball (305). The grating plate (303) is fixed at the upper end of the slide bar (301). The slide bar (301) passes through the upper end of the bottom wall of the U-shaped plate (2) and is inside it. The slide bar (301) is slidably connected to the U-shaped plate (2). The spring (302) is sleeved on the upper end of the slide bar (301) and is inside the U-shaped plate (2). The upper end of the spring (302) is fixed to the grating plate (303), and the lower end of the spring (302) is fixed to the inner bottom wall of the U-shaped plate (2). The extension rod (304) is fixedly installed at the bottom end of the slide bar (301). The measuring ball (305) is fixed at one end of the extension rod (304) away from the slide bar (301). An electric push rod (306) is installed on one side of the extension rod (304). The tool measurement mechanism (4) is installed on the extension rod (304) and is connected to the output shaft of the electric push rod (306).

3. The single-head CNC engraving machine for workpiece adaptive adjustment according to claim 2, characterized in that: The tool measurement mechanism (4) includes a swing arm (401), a measuring block (402) and a rocker arm (403). The rocker arm (403) is fixed to the swing arm (401). There are two rocker arms (403) and swing arms (401) respectively, which are located on both sides of the extension rod (304). One end of each rocker arm (403) is hinged to the extension rod (304). The measuring block (402) is sleeved on the two swing arms (401) and is slidably connected to them. The rocker arms (403) are both hinged to the output shaft of the electric push rod (306).

4. The single-head CNC engraving machine with workpiece adaptive adjustment according to claim 3, characterized in that: A fastening screw (404) is installed on the measuring block (402). After the fastening screw (404) is tightened, it can fix the measuring block (402) and the swing arm (401).

5. The single-head CNC engraving machine for workpiece adaptive adjustment according to claim 3, wherein: A groove (405) is provided on the upper surface of the measuring block (402). The groove (405) is a stepped structure.

6. The single-head CNC engraving machine with workpiece adaptive adjustment according to claim 2, characterized in that: A positioning rod (307) is fixedly installed on one side of the upper end of the extension rod (304). The positioning rod (307) is parallel to the slide bar (301). A sliding sleeve (308) is fixedly installed on one side of the U-shaped plate (2). The upper end of the positioning rod (307) passes through the sliding sleeve (308) and is slidably connected to it.

7. The single-head CNC engraving machine with workpiece adaptive adjustment according to claim 6, characterized in that: A bracket (309) is fixed on the other side of the upper end of the extension rod (304). The fixed end of the electric push rod (306) is hinged to one end of the bracket (309) away from the extension rod (304).

8. The single-head CNC engraving machine for workpiece adaptive adjustment according to claim 1, wherein: A number of equally spaced positioning holes (6) are provided on the connecting frame (1).

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