CNC (computer numerical control) sprue milling jig

Abstract

The utility model relates to the technical field of automotive trim panel products, and discloses a CNC (computer numerical control) sprue milling jig which comprises a bottom plate, three positioning clamping plates are slidably connected to the inside of the bottom plate, pressing plates are fixedly connected to the outer walls of the positioning clamping plates, pressing plate force arms are fixedly connected to the outer walls of the pressing plates, air cylinders are rotatably connected to the outer walls of the positioning clamping plates, and the air cylinders are fixedly connected to the outer walls of the positioning clamping plates. The output end of the air cylinder is fixedly connected with a positioning rod, a gas reverser is arranged on the outer wall of the positioning clamping plate, a gas switch is arranged on the outer wall of the gas reverser, a gas five-way valve is arranged on the outer wall of the gas reverser, and the gas five-way valve is electrically connected with the gas switch. According to the sprue removing device, through the cooperation of the positioning clamping plate, the pressing plate, the pressing plate force arm, the air cylinder, the gas reverser and the gas switch, the problems that an existing manual hot clamp sprue removing mode is low in working efficiency and poor in stability, products are prone to being scratched, and polishing is needed to be smooth after hot clamp removing is conducted are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile interior trim panel products, in particular to a CNC milling gate fixture. Background Art

[0002] CNC milling gate fixture is a tool used for accurate milling of gates in machining. It is usually made of high-precision metal materials with specific shapes and sizes to accommodate gates of different types and sizes. The fixture is designed to improve machining efficiency and accuracy, reduce errors and scrap rates. It can be fixed on a CNC milling machine and used in conjunction with a tool to achieve accurate milling of the gate.

[0003] The existing manual hot tongs for removing the gate are inefficient. Manual operation is not only time-consuming and laborious, but also difficult to meet the needs of mass production. Secondly, the stability is poor, and the accuracy and consistency of manual operation are difficult to ensure, which easily leads to problems such as unclean gate removal or excessive removal. In addition, during the process of removing the gate by manual hot tongs, due to unstable operation, it is very easy to scratch the surface of the product, resulting in a decrease in the appearance quality of the product. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a CNC milling gate fixture, which aims to improve the problems of low efficiency, poor stability, easy scratching of products and the need to polish smooth after removal by manual hot pliers.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a CNC milling gate fixture, comprising a base plate, three positioning clamps are slidably connected inside the base plate, the outer wall of the positioning clamp is fixedly connected to a pressure plate, the outer wall of the pressure plate is fixedly connected to a pressure plate force arm, the outer wall of the positioning clamp is rotatably connected to a cylinder, the output end of the cylinder is fixedly connected to a positioning rod, the outer wall of the positioning clamp is provided with a gas commutator, and the outer wall of the gas commutator is provided with a gas switch.

[0006] Furthermore, a gas five-way is provided on the outer wall of the gas commutator, and the gas five-way is electrically connected to the gas switch.

[0007] Furthermore, the three positioning clamps are symmetrical to each other.

[0008] Furthermore, the outer wall of the positioning rod is rotatably connected to the inside of the pressure plate force arm, and the outer wall of the pressure plate force arm is fixedly connected to the outer wall of the positioning clamping plate.

[0009] Furthermore, the gas commutator is electrically connected to the gas switch, and the gas five-way is electrically connected to the gas commutator.

[0010] Furthermore, the pressure plate force arm is arranged above the positioning clamping plate.

[0011] Furthermore, the cylinder and the pressure plate force arm are both slidably connected above the base plate.

[0012] The utility model has the following beneficial effects:

[0013] 1. In the utility model, firstly, the jig is installed on the CNC milling machine and the program is written, the gas switch is turned on, the gas reversing device is turned on, the pressing plate and the pressing plate force arm are opened, the product that needs to be milled with a gate is placed on the positioning card plate and the positioning is confirmed to be accurate, the gas reversing device is closed, the pressing plate and the pressing plate force arm fall down, the product is pressed tightly on the positioning card plate, and the gate milling operation is performed, which solves the problems of low efficiency, poor stability, easy scratching of the product and the need to be polished smooth after the hot pliers are removed in the existing manual hot pliers to remove the gate, and improves the practicality and processing efficiency of the jig. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a CNC milling gate fixture proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the bottom plate of a CNC milling gate fixture proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the gas commutator portion of a CNC milling gate fixture proposed by the utility model.

[0017] Legend:

[0018] 1. Base plate; 2. Positioning card plate; 3. Pressure plate; 4. Pressure plate lever; 5. Cylinder; 6. Gas five-way valve; 7. Gas commutator; 8. Gas switch; 9. Positioning rod. DETAILED DESCRIPTION

[0019] 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.

[0020] Reference Figure 1-Figure 3The utility model provides an embodiment: a CNC milling gate fixture, including a base plate 1, three positioning card plates 2 are slidably connected inside the base plate 1, a pressing plate 3 is fixedly connected to the outer wall of the positioning card plate 2, a pressing plate force arm 4 is fixedly connected to the outer wall of the pressing plate 3, a cylinder 5 is rotatably connected to the outer wall of the positioning card plate 2, a positioning rod 9 is fixedly connected to the output end of the cylinder 5, a gas commutator 7 is arranged on the outer wall of the positioning card plate 2, and a gas switch 8 is arranged on the outer wall of the gas commutator 7; A gas five-way 6 is provided, and the gas five-way 6 is electrically connected to the gas switch 8; the three positioning card plates 2 are symmetrical to each other; the outer wall of the positioning rod 9 is rotatably connected to the inside of the pressure plate arm 4, and the outer wall of the pressure plate arm 4 is fixedly connected to the outer wall of the positioning card plate 2; the gas reversing device 7 is electrically connected to the gas switch 8, and the gas five-way 6 is electrically connected to the gas reversing device 7; the pressure plate arm 4 is arranged above the positioning card plate 2; the cylinder 5 and the pressure plate arm 4 are both slidably connected above the bottom plate 1;

[0021] Specifically, when it is necessary to perform gate milling, first install the jig on the CNC milling machine and write a program to ensure the automation and accuracy of the operation. Next, turn on the gas switch 8 to start the gas supply system, and then turn on the gas reversing device 7 to expand the pressing plate 3 and the pressing plate arm 4. After placing the product on the positioning card plate 2 and confirming that the positioning is accurate, close the gas reversing device 7 to lower the pressing plate 3 and the pressing plate arm 4 to press and fix the product. Start the CNC milling machine and perform gate milling operations according to the program, thereby improving production efficiency and processing quality.

[0022] Working principle: When it is necessary to perform gate milling operation, first install the fixture on the CNC milling machine, and write the corresponding program to ensure the automation and accuracy of the operation. Next, turn on the gas switch 8 to start the gas supply system, and then turn on the gas reversing device 7 to open the pressure plate 3 and the pressure plate arm 4 to prepare for placing the product. Carefully place the product that needs gate milling on the positioning card plate 2, and confirm whether the positioning of the product is accurate to ensure the correct position of the product in the fixture. After confirming that the positioning is correct, close the gas reversing device 7 to make the pressure plate 3 and the pressure plate arm 4 fall, and firmly press the product on the positioning card plate 2. This process ensures that the product will not move during the milling process, thereby ensuring the accuracy and quality of the processing. At this time, the CNC milling machine can be started to perform gate milling operation according to the written program, which not only improves production efficiency, but also ensures the consistency of processing quality of each product, realizes the firm fixation and precise processing of the product, and ensures the smooth completion of the gate milling operation.

[0023] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. 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 CNC milling gate fixture, comprising a base plate (1), characterized in that: The bottom plate (1) is internally slidably connected to three positioning clamps (2), the outer wall of the positioning clamp (2) is fixedly connected to a pressure plate (3), the outer wall of the pressure plate (3) is fixedly connected to a pressure plate force arm (4), the outer wall of the positioning clamp (2) is rotatably connected to a cylinder (5), the output end of the cylinder (5) is fixedly connected to a positioning rod (9), the outer wall of the positioning clamp (2) is provided with a gas reversing device (7), and the outer wall of the gas reversing device (7) is provided with a gas switch (8).

2. A CNC gate milling jig according to claim 1, characterized in that: The outer wall of the gas commutator (7) is provided with a gas five-way (6), and the gas five-way (6) is electrically connected to the gas switch (8).

3. A CNC gate milling jig according to claim 2, characterized in that: The three positioning clamping plates (2) are symmetrical to each other.

4. A CNC gate milling jig according to claim 3, characterized in that: The outer wall of the positioning rod (9) is rotatably connected to the inside of the pressure plate arm (4), and the outer wall of the pressure plate arm (4) is fixedly connected to the outer wall of the positioning clamping plate (2).

5. A CNC gate milling jig according to claim 2, characterized in that: The gas commutator (7) is electrically connected to the gas switch (8), and the gas five-way (6) is electrically connected to the gas commutator (7).

6. The CNC gate milling fixture according to claim 1, characterized in that: The pressure plate force arm (4) is arranged above the positioning clamping plate (2).

7. The CNC gate milling fixture according to claim 1, characterized in that: The cylinder (5) and the pressure plate force arm (4) are both slidably connected above the base plate (1).

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