Pneumatic clamp of numerical control machine tool

Abstract

The utility model discloses a pneumatic clamp of a numerical control machine tool, which belongs to the technical field of numerical control machine tools and comprises a clamp body and a clamping jaw arranged on the clamp body, a placing groove is arranged on one side of the clamping jaw, and a limiting groove is arranged on the clamping jaw through the placing groove. The clamping jaw is provided with a warning structure through the containing groove and used for reminding workers. The warning structure comprises a moving block which is movably inserted into the clamping jaw through the containing groove. The part is driven to move upwards after being clamped by the clamping jaws on the clamp body, if the clamping jaws are loosened or do not clamp the part, when the part is separated from the table top of the numerical control machine tool, the part gradually slides downwards under the dead weight, at the moment, the extrusion block moves downwards under the friction of the part sliding downwards, and the ejector rod is driven to move downwards along with the downward movement of the extrusion block, so that the ejector rod does not extrude the switch; therefore, the effect of reminding a worker is achieved, the worker can timely deal with the situation that the instrument is damaged by the parts, and meanwhile the worker of the numerically-controlled machine tool accessories is reminded to be away from the instrument so that the parts can be prevented from falling off and being injured.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerical control machine tools, and in particular relates to a pneumatic clamp for numerical control machine tools. Background Art

[0002] CNC machine tools are automated machine tools equipped with a program control system. After calculation and processing, the CNC device sends various control signals to control the movement of the machine tool, and automatically processes parts according to the shape and size required by the drawing. CNC machine tools generally need to be equipped with pneumatic fixtures to facilitate the movement of parts.

[0003] At present, when a pneumatic clamp is used to clamp a part, the telescopic end of the pneumatic rod is used to drive the claw to clamp the part. In addition, the mechanical arm on the CNC machine tool drives the pneumatic clamp to move, thereby driving the part to move. However, when the claw is clamping the part and moving it, if the claw is loose or the part is not clamped firmly, the part is easily separated from the claw during the movement, causing the part to fall from a high place and easily hit other parts, instruments or people;

[0004] In order to solve the above problems, this application proposes a pneumatic clamp for a CNC machine tool. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a pneumatic clamp for a CNC machine tool to overcome the above technical problems existing in the existing related technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A pneumatic clamp for a numerically controlled machine tool comprises a clamp body and a clamping claw arranged on the clamp body.

[0008] The claw is provided with a warning structure for reminding the staff;

[0009] The warning structure includes a moving block movably connected to the claw, a sliding opening is opened on the moving block, the moving block is slidably connected to the extrusion block through the sliding opening, a first spring connected to the claw is provided on the moving block, a second spring connected to the moving block is provided on the extrusion block, a switch is installed on the moving block through the sliding opening, a push rod is installed on the top of the extrusion block, the top end of the push rod is connected to the switch, an alarm is installed on the claw, and the alarm is electrically connected to the switch.

[0010] A placement groove is provided on one side of the claw, and a limiting groove is provided on the claw through the placement groove. The moving block is slidably connected through the placement groove. A limiting plate is installed on the moving block, and the limiting plate is slidably connected to the claw through the limiting groove. One end of the first spring is connected to the claw through the limiting groove, and the other end of the first spring is connected to the limiting plate. The placement groove, the limiting groove and the limiting plate are provided to assist the movement of the moving block.

[0011] The moving block is provided with a sliding groove through a sliding opening, a slider is installed on the extrusion block, the slider is slidably connected to the moving block through the sliding groove, one end of the second spring is connected to the moving block through the sliding groove, and the other end of the second spring is connected to the slider. The sliding groove and the slider are provided to assist the movement of the extrusion block.

[0012] An anti-skid sheet is installed on one side of the extrusion block, and the friction between the extrusion block and the parts is increased by providing the anti-skid sheet.

[0013] The anti-slip sheet is provided with a plurality of transverse grooves, and the friction force is further increased by providing the plurality of transverse grooves.

[0014] There are two limit grooves, two limit plates, and each limit plate corresponds to a first spring. By providing two limit grooves, two limit plates and two first springs, the moving block is subjected to uniform force when moving.

[0015] There are two slide grooves, two sliders, and each slider corresponds to a second spring. By providing two slide grooves, two sliders and a second spring, the extrusion block is subjected to uniform force when moving.

[0016] To sum up, the technical effects and advantages of the utility model are as follows: the pneumatic clamp of the CNC machine tool, by setting a warning structure, uses the claws on the clamp body to clamp the parts and then drive the parts to move upward. If the claws are loose or fail to clamp the parts, when the parts are detached from the CNC machine tool table, the parts gradually slide down under their own weight. At this time, the extrusion block moves downward due to the friction of the sliding part. As the extrusion block moves downward, the push rod moves downward, so that the push rod does not squeeze the switch, and the alarm sounds, thereby achieving the effect of reminding the staff, so that the staff can respond in time to avoid parts damaging the instrument and remind people around the CNC machine tool to stay away to avoid parts falling and hitting them. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This utility model is a schematic diagram showing the structure of the device;

[0018] Figure 2 This is a cross-sectional schematic diagram showing the internal structure of the clamping claw of the utility model;

[0019] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 The utility model is a cross-sectional schematic diagram showing the internal structure of the moving block.

[0021] In the figure:

[0022] 1. Clamp body; 2. Clamp claw; 3. Placement slot; 4. Limiting slot;

[0023] 5. Warning structure; 501. Moving block; 502. Limiting plate; 503. First spring; 504. Sliding opening; 505. Sliding groove; 506. Second spring; 507. Sliding block; 508. Extruding block; 509. Anti-slip sheet; 510. Switch; 511. Push rod; 512. Alarm. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] Reference Figure 1-4 A pneumatic clamp for a numerically controlled machine tool comprises a clamp body 1 and a claw 2 arranged on the clamp body 1, a placement slot 3 is provided on one side of the claw 2, a limit slot 4 is provided on the claw 2 through the placement slot 3, a warning structure 5 is provided on the claw 2 through the placement slot 3 for reminding the staff, the warning structure 5 comprises a moving block 501 movably inserted with the claw 2 through the placement slot 3, a limit plate 502 is installed on the moving block 501, a first spring 503 is installed on the limit plate 502, one end of the first spring 503 is connected with the claw 2 through the limit slot 4, the limit plate 502 is slidably connected with the claw 2 through the limit slot 4, the limit plate 502 can move in the limit slot 4, the moving block 501 can move in the placement slot 3, and the first spring 503 provides the moving block 501 with a force to move to the outside of the placement slot 3.

[0026] The moving block 501 is provided with a sliding opening 504, through which a sliding groove 505 is provided, and the moving block 501 is slidably connected to a squeezing block 508 through the sliding opening 504. When the first spring 503 does not clamp an object, one end of the squeezing block 508 protrudes from the placement slot 3.

[0027] A slider 507 is installed on the extrusion block 508, and the slider 507 is slidably connected to the moving block 501 through the slide groove 505. The moving block 501 is installed with a second spring 506 through the slide groove 505, and one end of the second spring 506 is connected to one end of the slider 507. The second spring 506 is used to support the slider 507, thereby supporting the extrusion block 508.

[0028] The moving block 501 is provided with a switch 510 through the sliding opening 504, and the specific model of the switch 510 is 8B2-P10F. A push rod 511 is provided on the top of the squeezing block 508, and the top of the push rod 511 is connected to the switch 510. An alarm 512 is provided on the claw 2, and the specific model of the alarm 512 is BJ-1IK. The alarm 512 is electrically connected to the switch 510. When the push rod 511 does not squeeze the switch 510, the switch 510 sends a signal to the alarm 512, and the alarm 512 receives the signal and sounds. The circuit connection method between the switch 510 and the alarm 512 can be reasonably set according to actual conditions, and the specific signal transmission is a prior art.

[0029] Specifically, according to the above technical solution, the claws 2 on the clamp body 1 are used to clamp the parts, and then the clamp body 1 drives the parts to move upward. At this time, if the claws 2 are loose or do not clamp the parts, when the parts are separated from the CNC machine table, the parts gradually slide down under their own weight. At this time, the squeezing block 508 moves downward due to the friction of the sliding parts. As the squeezing block 508 moves downward, the push rod 511 moves downward, so that the push rod 511 does not squeeze the switch 510. At this time, the alarm 512 sounds, thereby achieving the effect of reminding the staff.

[0030] Reference Figure 4 A non-slip sheet 509 is installed on one side of the extrusion block 508. The non-slip sheet 509 is made of rubber and is squeezed between the extrusion block 508 and the parts to increase the friction between the extrusion block 508 and the parts.

[0031] The anti-slip sheet 509 is provided with a plurality of transverse grooves, which are used to further increase the friction between the extrusion block 508 and the parts, and to avoid slipping as much as possible to affect the extrusion block 508 from moving downward along with the parts.

[0032] Reference Figure 3 and Figure 4 There are two limit grooves 4, two limit plates 502, and each limit plate 502 corresponds to a first spring 503, so that the moving block 501 is evenly stressed when moving, making the moving block 501 move more smoothly.

[0033] There are two slide grooves 505 and two sliders 507 , and each slider 507 corresponds to a second spring 506 , so that the extrusion block 508 is evenly stressed when moving, and the movement of the moving block 501 and the extrusion block 508 is smoother.

[0034] Working principle:

[0035] The pneumatic clamp of the CNC machine tool utilizes the claws 2 on the clamp body 1 to clamp the parts, and then the clamp body 1 drives the parts to move upward. At this time, if the claws 2 are loose or do not clamp the parts, when the parts leave the CNC machine tool table, the parts gradually slide down under their own weight. At this time, the squeezing block 508 moves downward due to the friction of the sliding parts. As the squeezing block 508 moves downward, the push rod 511 moves downward, so that the push rod 511 does not squeeze the switch 510. At this time, the alarm 512 sounds, thereby achieving the effect of reminding the staff, so that the staff can respond in time to avoid parts damaging the instruments and remind people near the CNC machine tool to stay away to avoid parts falling and hitting injuries.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pneumatic clamp for a numerically controlled machine tool, comprising a clamp body (1) and a clamping claw (2) arranged on the clamp body (1), characterized in that: The clamping claw (2) is provided with a warning structure (5) for reminding staff; The warning structure (5) comprises a moving block (501) movably engaged with the claw (2); a sliding opening (504) is provided on the moving block (501); the moving block (501) is slidably connected to a squeezing block (508) via the sliding opening (504); a first spring (503) connected to the claw (2) is provided on the moving block (501); a second spring (506) connected to the moving block (501) is provided on the squeezing block (508); a switch (510) is installed on the moving block (501) via the sliding opening (504); a push rod (511) is installed on the top of the squeezing block (508); the top end of the push rod (511) is connected to the switch (510); an alarm (512) is installed on the claw (2); the alarm (512) is electrically connected to the switch (510).

2. A pneumatic fixture for CNC machine tools according to claim 1, characterized in that: A placement groove (3) is provided on one side of the clamping claw (2), a limiting groove (4) is provided on the clamping claw (2) through the placement groove (3), the moving block (501) is slidably connected through the placement groove (3), a limiting plate (502) is installed on the moving block (501), the limiting plate (502) is slidably connected to the clamping claw (2) through the limiting groove (4), one end of the first spring (503) is connected to the clamping claw (2) through the limiting groove (4), and the other end of the first spring (503) is connected to the limiting plate (502).

3. The pneumatic clamp for CNC machine tools according to claim 1, characterized in that: The moving block (501) is provided with a sliding groove (505) through a sliding opening (504); a slider (507) is installed on the extrusion block (508); the slider (507) is slidably connected to the moving block (501) through the sliding groove (505); one end of the second spring (506) is connected to the moving block (501) through the sliding groove (505); and the other end of the second spring (506) is connected to the slider (507).

4. A pneumatic fixture for CNC machine tools according to claim 3, characterized in that: An anti-slip sheet (509) is installed on one side of the extrusion block (508).

5. A pneumatic fixture for CNC machine tools according to claim 4, characterized in that: The anti-slip sheet (509) is provided with a plurality of transverse grooves.

6. The pneumatic clamp for CNC machine tools according to claim 2, characterized in that: Two limiting grooves (4) are provided, two limiting plates (502) are provided, and each limiting plate (502) corresponds to a first spring (503).

7. The pneumatic clamp for CNC machine tools according to claim 3, characterized in that: Two slide grooves (505) are provided, two sliders (507) are provided, and each slider (507) corresponds to a second spring (506).

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