Quick part clamping structure for numerical control machining

Abstract

The utility model relates to the technical field of part clamping and machining, in particular to a quick part clamping structure for numerical control machining, which comprises a mounting bottom plate, two limiting frames and two first supporting seats are mounted on the top surface of the mounting bottom plate, and second supporting seats capable of vertically sliding are mounted in the two limiting frames. The device has the advantages that the mounting bottom plate, the limiting frame and the two first supporting seats are arranged, the second supporting seats and the inclined blocks are slidably mounted in the limiting frame respectively, the two lead screws are in threaded connection with the two inclined blocks respectively, the driving motor is powered on to operate, the lead screws and the inclined blocks rotate relatively, and the inclined blocks are driven to slide horizontally; the two second supporting seats are controlled to move vertically, the relative height of the two second supporting seats is changed, stable supporting of a part of a trapezoidal structure, shortening action of the four pneumatic cylinders and clamping of the part are facilitated, and therefore the problems existing in the prior art are effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of parts clamping and processing technology, and in particular to a quick clamping structure for CNC machining parts. Background Technology

[0002] Numerical control (NC) machining is a technology that uses digital instructions to control the movement of machine tools to process parts. Its core is that a computer system interprets program instructions and drives the machine tool to complete operations such as cutting and drilling; it is a typical application of computer-aided manufacturing. The repeatability of NC systems can reach the micrometer level, reducing human error and ensuring stable machining quality. When machining parts, clamping structures are needed to secure and position them.

[0003] For parts with stepped shapes, traditional clamping structures are not convenient for height adjustment based on the part's shape, requiring the manufacture of special fixtures according to the part's shape, which increases economic expenditure. At the same time, if the wrong special fixture is selected for clamping the part, it can easily cause the part to loosen, affecting the accuracy of CNC machining. Based on this, a quick clamping structure for CNC machining is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide a quick clamping structure for CNC machining parts, which effectively solves the deficiencies of the prior art.

[0005] To achieve the above objectives, one embodiment of this utility model provides a quick clamping structure for CNC machining parts, including a mounting base plate. Two limiting frames and two first support seats are mounted on the top surface of the mounting base plate. Each of the two limiting frames has a second support seat that can slide vertically inside. Horizontally movable inclined blocks are mounted on the bottom ends of the inner walls of the two limiting frames, and the top surfaces of the two inclined blocks are respectively in contact with the bottom surfaces of the second support seats. Two guide rails are mounted on both sides of the top surface of the mounting base plate. Sliding sliders are slidably mounted inside each of the four guide rails, and pneumatic cylinders are mounted on the top ends of each of the four guide rails. Clamping blocks for clamping external parts are mounted on the output ends of each of the four pneumatic cylinders.

[0006] Preferably, each of the above-mentioned solutions has three mounting slots on both sides of the mounting base plate, and the inner walls of the six mounting slots are stepped. This solution facilitates the provision of mounting positions for the hexagon socket head cap screws and limits their movement. After the hexagon socket head cap screws are fixedly connected to the external machine tool, it is easy to lock the position of the mounting base plate.

[0007] Preferably, one of the above solutions is that four first connecting plates are installed between the adjacent sides of the two limiting frames. This solution improves the connection stability between the two limiting frames. At the same time, the two ends of the four first connecting plates are fixedly connected to the adjacent sides of the limiting frames by welding, so that the two limiting frames remain relatively parallel. This facilitates the guidance of the two second support seats and the inclined blocks, and enables the second support seats to provide stable support for the external parts.

[0008] Preferably, in any of the above solutions, a drive motor is installed at the same end of both limiting frames, and a lead screw is installed at the output end of both drive motors. The two lead screws are threadedly connected to the two inclined blocks respectively. This solution facilitates the formation of a lead screw and nut drive mechanism. When the drive motor is energized, it facilitates the relative rotation between the lead screw and the inclined block, which drives the inclined block to slide horizontally. Since the top surface of the inclined block is an inclined structure, it pushes the second support seat to move vertically, changing the height of the two second support seats to support parts of different sizes. When the two drive motors stop rotating, a self-locking structure is formed between the lead screw and the inclined block to prevent the inclined block from sliding.

[0009] Preferably, in any of the above solutions, the middle part of both limiting frames is a hollow structure, and the bottom ends of the two limiting frames are fixedly connected to the top surface of the mounting base plate by bolts. This solution can reduce the amount of material used for the limiting frames, reduce the relative weight of the two limiting frames, facilitate the processing and manufacturing of the limiting frames, and then fix them to the mounting base plate with bolts, which facilitates the operator to perform the initial installation and subsequent disassembly and replacement of the two limiting frames.

[0010] Preferably, one of the above solutions has a limiting plate installed at the bottom of one side of the first support base to limit the movement of external parts, and two second connecting plates installed between the adjacent sides of the two first support bases. In this solution, the limiting plate facilitates the limiting of the bending position of the trapezoidal part, and at the same time, the two ends of the two second connecting plates are fixedly connected to the two sides of the first support base by bolts, which improves the installation stability of the two first support bases and facilitates stable support for the parts.

[0011] This utility model has the following advantages:

[0012] 1. This quick clamping structure for CNC machining parts comprises a mounting base, a limiting frame, and two first support seats. The limiting frame contains second support seats and inclined blocks that slide inside. Two lead screws are threadedly connected to the two inclined blocks. When a drive motor is energized, the lead screws and inclined blocks rotate relative to each other, driving the inclined blocks to slide horizontally. This controls the vertical movement of the two second support seats, changing their relative height to facilitate stable support for parts with trapezoidal structures. Four pneumatic cylinders shorten their movement to clamp the parts, effectively solving the problems existing in the prior art.

[0013] 2. This quick clamping structure for CNC machining parts includes two limit frames and two first support seats. Four first connecting plates are installed between the two limit frames, and two second connecting plates are installed between the two first support seats. This ensures that the two limit frames and the two first support seats are relatively parallel, while improving the stability of the connection. By setting four guide rails and four sliders, the operator can easily push the four sliders to slide horizontally and change the distance between the pressure blocks for clamping parts of different widths. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a first-view structural diagram of the entire utility model;

[0016] Figure 3 This is an exploded structural diagram of the limiting frame and the second support base of this utility model;

[0017] Figure 4 This is an exploded structural diagram of the two first support bases of this utility model;

[0018] Figure 5 This is a schematic diagram of the slider structure of this utility model.

[0019] In the diagram: 1-Mounting base plate, 2-Guide rail, 3-First support seat, 4-Drive motor, 5-Screw, 6-Inclined block, 7-Limiting frame, 8-Pressure block, 9-Pneumatic cylinder, 10-Slider, 11-Second support seat, 12-Limiting plate, 13-Second connecting plate, 14-First connecting plate. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings, but the scope of protection of the present invention is not limited to the following description.

[0021] like Figures 1 to 5As shown, a quick clamping structure for CNC machining parts includes a mounting base plate 1. Two limit frames 7 and two first support seats 3 are mounted on the top surface of the mounting base plate 1. Each of the two limit frames 7 has a second support seat 11 that can slide vertically inside. Horizontally movable inclined blocks 6 are mounted on the bottom ends of the inner walls of the two limit frames 7, and the top surfaces of the two inclined blocks 6 are respectively in contact with the bottom surfaces of the second support seats 11. Two guide rails 2 are mounted on both sides of the top surface of the mounting base plate 1. Sliding sliders 10 are slidably mounted inside each of the four guide rails 2, and pneumatic cylinders 9 are mounted on the top ends of each of the four guide rails. Clamping blocks 8 for clamping external parts are mounted on the output ends of each of the four pneumatic cylinders 9.

[0022] The mounting base plate 1 has three mounting slots on both sides. The inner walls of the six mounting slots are stepped. As an optional technical solution of this utility model, this facilitates the provision of installation positions for the hexagon socket bolts and limits their movement. After the hexagon socket bolts are fixedly connected to the external machine tool, it is easy to lock the position of the mounting base plate 1.

[0023] Four first connecting plates 14 are installed between the adjacent sides of the two limiting frames 7. As an optional technical solution of this utility model, this facilitates the improvement of the connection stability between the two limiting frames 7. At the same time, the two ends of the four first connecting plates 14 are fixedly connected to the adjacent sides of the limiting frames 7 by welding, so that the two limiting frames 7 remain relatively parallel, which facilitates the guidance of the two second support seats 11 and the inclined block 6, and enables the second support seats 11 to provide stable support for the external parts.

[0024] Two limit frames 7 are each equipped with a drive motor 4 at the same end, and each drive motor 4 is equipped with a lead screw 5 at its output end. The two lead screws 5 are threadedly connected to two inclined blocks 6 respectively. As an optional technical solution of this utility model, this facilitates the formation of a lead screw and nut drive mechanism. When the drive motor 4 is powered on, it facilitates the relative rotation between the lead screw 5 and the inclined block 6, which is used to drive the inclined block 6 to slide horizontally. Since the top surface of the inclined block 6 is an inclined structure, it pushes the second support seat 11 to move vertically, changing the height of the two second support seats 11 to support parts of different sizes. When the two drive motors 4 stop rotating, a self-locking structure is formed between the lead screw 5 and the inclined block 6 to prevent the inclined block 6 from sliding.

[0025] Both limiting frames 7 have a hollow structure in the middle. The bottom ends of the two limiting frames 7 are fixedly connected to the top surface of the mounting base plate 1 by bolts. As an optional technical solution of this utility model, this makes it easier to reduce the amount of material used in the limiting frames 7, reduce the relative weight of the two limiting frames 7, and facilitate the processing and manufacturing of the limiting frames 7. Then, the two limiting frames 7 are fixedly connected to the mounting base plate 1 by bolts, which makes it easier for operators to install the two limiting frames 7 in the early stage and disassemble and replace them in the later stage.

[0026] A limiting plate 12 for limiting the position of external parts is installed at the bottom of one side of a first support base 3. Two second connecting plates 13 are installed between adjacent sides of the two first support bases 3. As an optional technical solution of this utility model, the limiting plate 12 facilitates the limiting of the bending position of the trapezoidal part. At the same time, the two ends of the two second connecting plates 13 are fixedly connected to the two sides of the first support base 3 by bolts, which improves the installation stability of the two first support bases 3 and facilitates stable support for the parts.

[0027] This quick clamping structure for CNC machining requires the following steps when in use:

[0028] 1) When in use, place the part with the trapezoidal structure on the two first support seats 3 and the two second support seats 11, and at the same time make the bent position of the part abut against one side of the limiting plate 12.

[0029] 2) Control the two drive motors 4 to be powered on and run, so that the lead screw 5 and the inclined block 6 rotate relative to each other, and drive the inclined block 6 to slide horizontally;

[0030] 3) The inclined block 6 slides relative to the second support 11, controlling the second support 11 to move vertically and provide stable support for parts of different sizes;

[0031] 4) Slide slider 10 to bring the four pressure blocks 8 closer to the part. The four pneumatic cylinders 9 shorten synchronously, causing the pressure blocks 8 to drop in height and clamp the part.

[0032] In summary, during use, the user utilizes a base plate 1, a limiting frame 7, and two first support seats 3. The limiting frame 7 contains a second support seat 11 and a wedge block 6, which are slidably mounted inside. Two lead screws 5 are threadedly connected to the two wedge blocks 6. When the drive motor 4 is energized, the lead screws 5 and wedge blocks 6 rotate relative to each other, driving the wedge blocks 6 to slide horizontally. This controls the vertical movement of the two second support seats 11, changing their relative height to facilitate stable support for parts with trapezoidal structures. The four pneumatic cylinders 9 shorten their movement to clamp the parts. The clamping mechanism effectively solves the problems existing in the prior art. Furthermore, by setting two limiting frames 7 and two first support seats 3, four first connecting plates 14 are installed between the two limiting frames 7, and two second connecting plates 13 are installed between the two first support seats 3, thereby keeping the two limiting frames 7 and the two first support seats 3 relatively parallel and improving the stability of the connection. By setting four guide rails 2 and four sliders 10, it is easier for the operator to push the four sliders 10 to slide horizontally and change the distance between the pressure blocks 8 for clamping parts of different widths.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick clamping structure for CNC machining parts, characterized in that: The mounting base (1) includes a mounting plate (1), on the top surface of which are mounted two limiting frames (7) and two first support seats (3). The two limiting frames (7) are each equipped with a second support seat (11) that can slide vertically. The bottom of the inner wall of the two limiting frames (7) is equipped with a horizontally movable inclined block (6), and the top surface of the two inclined blocks (6) is respectively in contact with the bottom surface of the second support seat (11). Two guide rails (2) are mounted on both sides of the top surface of the mounting base (1). The four guide rails (2) are each equipped with a slider (10) that slides inside. The top of each of the four guide rails (2) is equipped with a pneumatic cylinder (9), and the output end of each of the four pneumatic cylinders (9) is equipped with a clamping block (8) for clamping external parts.

2. The quick clamping structure for CNC machining parts according to claim 1, characterized in that: The mounting base plate (1) has three mounting slots on both sides, and the inner walls of the six mounting slots are all stepped.

3. The quick clamping structure for CNC machining parts according to claim 2, characterized in that: Four first connecting plates (14) are installed between the adjacent sides of the two limiting frames (7).

4. The quick clamping structure for CNC machining parts according to claim 3, characterized in that: Both of the two limiting frames (7) are equipped with drive motors (4) at the same end, and both of the output ends of the two drive motors (4) are equipped with lead screws (5). The two lead screws (5) are respectively threaded to the two inclined blocks (6).

5. The quick clamping structure for CNC machining parts according to claim 4, characterized in that: The middle part of both limiting frames (7) is hollow, and the bottom ends of the two limiting frames (7) are fixedly connected to the top surface of the mounting base plate (1) by bolts.

6. The quick clamping structure for CNC machining parts according to claim 5, characterized in that: A limiting plate (12) for limiting external parts is installed at the bottom end of one side of the first support base (3), and two second connecting plates (13) are installed between the adjacent sides of the two first support bases (3).

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