Automatic centering type numerical control machining clamp

Abstract

The utility model discloses an automatic centering type numerical control machining clamp which comprises a lower base plate, two symmetrical side vertical plates are fixedly connected to the bottom of the lower base plate, an upper positioning plate is fixedly connected to the tops of the side vertical plates, an air cylinder cushion block is fixedly connected to the top of the lower base plate, and an air cylinder is fixedly connected to the top of the air cylinder cushion block. The output end of the air cylinder penetrates through the upper positioning plate to be fixedly connected with the center sliding block, the upper positioning plate is slidably connected with the peripheral sliding block, the periphery of the center sliding block is provided with a first inclined face, the periphery of the peripheral sliding block is provided with a second inclined face, the periphery of the center sliding block is provided with a positioning groove, and the periphery of the peripheral sliding block is fixedly connected with the positioning block. Due to the fact that the products are stably positioned in the up-down direction, the front-back direction and the left-right direction, the consistency of the machined products is good.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machining, and more particularly to an automatic centering numerical control machining fixture. Background Art

[0002] CNC machining refers to a process method for machining metallographic parts on CNC machine tools. The process procedures of CNC machine tool machining and traditional machine tool machining are generally consistent, but there have also been significant changes. It is a mechanical processing method that uses digital information to control the displacement of parts and tools. It is an effective way to solve problems such as a wide variety of parts, small batches, complex shapes, and high precision, and to achieve efficient and automated processing.

[0003] When the internal or external dimensions and shapes of the product being processed are inconsistent, it is difficult to find a reasonable processing reference surface. However, to take into account the differences between the inside and outside of the product, it is undoubtedly most reasonable to position it at the center of the product. No matter how the product changes, its center remains unchanged. For this reason, we propose an automatic positioning center CNC machining fixture. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic centering CNC machining fixture to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic centering CNC machining fixture, comprising a lower seat plate, the bottom of the lower seat plate is fixedly connected to two symmetrical side plates, the top of the side plates is fixedly connected to an upper positioning plate, the top of the lower seat plate is fixedly connected to a cylinder pad, the top of the cylinder pad is fixedly connected to a cylinder, the output end of the cylinder is fixedly connected to a center slider through the upper positioning plate, the upper positioning plate is slidably connected to the surrounding sliders, the center slider is provided with a first inclined surface around it, and the surrounding sliders are provided with a second inclined surface around them.

[0006] Preferably, positioning grooves are provided around the central slider, and the surrounding sliders are fixedly connected to positioning blocks, and the positioning grooves are tightly fitted with the positioning blocks.

[0007] Preferably, one side of the four-sided slider is connected to a rolling ball.

[0008] Preferably, a threaded hole is provided on the top of the upper positioning plate.

[0009] Preferably, lubricating oil is applied between the first inclined surface and the second inclined surface.

[0010] Compared with the existing technology, the beneficial effects of the present invention are: processing products only requires a cylinder to move the central slider up and down and cooperate with the surrounding sliders to fix the product. The product has a certain stability, and it only takes about two seconds to load and unload the product, saving time and cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the first inclined plane and the second inclined plane of the utility model;

[0013] Figure 3 Schematic diagram of the rolling ball structure of the utility model;

[0014] Figure 4 Schematic diagram of the positioning groove and positioning block structure of the utility model.

[0015] In the figure: 1. Lower seat plate; 2. Upper positioning plate; 3. Cylinder pad; 4. Cylinder; 5. Side plate; 6. Surrounding sliders; 7. Center slider; 8. Threaded hole; 9. First inclined surface; 10. Second inclined surface; 11. Positioning groove; 12. Positioning block; 13. Rolling ball. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] See also Figure 1-2 The utility model provides a technical solution: an automatic centering CNC machining fixture, comprising a lower seat plate 1, the bottom of the lower seat plate 1 is fixedly connected to two symmetrical side vertical plates 5, the top of the side vertical plates 5 is fixedly connected to an upper positioning plate 2, the top of the lower seat plate 1 is fixedly connected to a cylinder pad 3, the top of the cylinder pad 3 is fixedly connected to a cylinder 4, the output end of the cylinder 4 passes through the upper positioning plate 2 and is fixedly connected to a center slider 7, the upper positioning plate 2 is slidably connected to the surrounding sliders 6, the center slider 7 is provided with a first inclined surface 9 around it, and the surrounding sliders 6 are provided with a second inclined surface 10 around it, and only one cylinder is needed to control the tightness of the product.

[0018] See also Figure 4 The central slider 7 is provided with positioning grooves 11 around it, and the surrounding sliders 6 are fixedly connected with positioning blocks 12 around them. The positioning grooves 11 and the positioning blocks 12 fit tightly together, so that the surrounding sliders 6 can only move left and right.

[0019] See also Figure 3 One side of the sliding block 6 is connected to the rolling ball 13 in a rolling manner, so that the product is more stable when being fixed.

[0020] See also Figure 1 A threaded hole 8 is provided on the top of the upper positioning plate 2 to fixedly connect the upper positioning plate 2 and the side plate 5 .

[0021] See also Figure 2 Lubricating oil is applied between the first inclined surface 9 and the second inclined surface 10 to reduce friction.

[0022] Working principle: put the product into the mold, and in the standby state, the surrounding sliders 6 are retracted, and the cylinder 4 is turned on, and the central slider 7 is opened outward to support the inner wall of the product and clamp it firmly. After processing, the cylinder 4 pushes the central slider 7 upward, driving the surrounding sliders 6 to retract and release the product, and the product is taken out.

[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic centering CNC machining fixture, comprising a lower base plate (1), characterized in that: The bottom of the lower seat plate (1) is fixedly connected to two symmetrical side upright plates (5), the top of the side upright plates (5) is fixedly connected to the upper positioning plate (2), the top of the lower seat plate (1) is fixedly connected to the cylinder pad (3), the top of the cylinder pad (3) is fixedly connected to the cylinder (4), the output end of the cylinder (4) passes through the upper positioning plate (2) and is fixedly connected to the center slider (7), the upper positioning plate (2) is slidably connected to the surrounding sliders (6), the center slider (7) is provided with a first inclined surface (9) on the periphery, and the surrounding sliders (6) are provided with a second inclined surface (10) on the periphery.

2. The automatic centering CNC machining fixture according to claim 1, characterized in that: The central slider (7) is provided with positioning grooves (11) on all sides, and the surrounding sliders (6) are fixedly connected to positioning blocks (12) on all sides, and the positioning grooves (11) and the positioning blocks (12) are tightly fitted.

3. The automatic centering CNC machining fixture according to claim 1, characterized in that: One side of the surrounding sliding block (6) is rollingly connected to a rolling ball (13).

4. The automatic centering CNC machining fixture according to claim 1, characterized in that: A threaded hole (8) is provided on the top of the upper positioning plate (2).

5. The automatic centering CNC machining fixture according to claim 1, characterized in that: Lubricating oil is applied between the first inclined surface (9) and the second inclined surface (10).

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