High-straightness processing device for micro pin hole needle head

Abstract

The utility model discloses a miniature pin hole needle head high-linearity machining device which comprises a machine tool, a movable frame is arranged on the front side of the machine tool, the movable frame is connected with the machine tool through a sliding assembly, a rotating disc is installed in the side wall of the front end of the machine tool in a rotating mode, a built-in drive acting on the rotating disc is arranged in the machine tool, and the built-in drive acts on the rotating disc. A first cutter and a second cutter are symmetrically arranged on the axis of the rotary disc, an electric telescopic rod is arranged at the axis position of the rotary disc, a three-jaw chuck is arranged at the axis position of the front end of the electric telescopic rod, and the three-jaw chuck is used for fixing a machined bar. The first cutter and the second cutter can act on the two sides of the bar correspondingly, so that the two sides of the bar are cut at the same time, the cutter relieving phenomenon of the bar in the machining process can be avoided through the cutting mode, the straightness of a machined product is effectively guaranteed, and the machining efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerospace parts processing, in particular to a high straightness processing device for a micro pinhole needle. Background Art

[0002] With the emergence of demands such as launching multiple satellites with one rocket, the aerospace field is showing a trend of miniaturization and high integration of parts. When producing aviation pinhole needles, they need to be turned.

[0003] However, existing turning machine tools often cannot meet the processing requirements of miniaturized aviation pinhole needles. The production requirements of miniaturized aviation pinhole needles often require a diameter of 0.25mm and a straightness within 0.05mm. When processing this product, the existing machine tools often have insufficient rigidity due to the small diameter of the aviation pinhole needle. Under the squeeze of the tool, the tool will give way, which will cause the final product to fail to meet the processing requirements. For this reason, a high straightness processing device for micro pinhole needles is proposed. Utility Model Content

[0004] The utility model aims to provide a high straightness processing device for a micro pinhole needle head to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-straightness processing device for a micro-pinhole needle, comprising a machine tool, a movable frame is arranged on the front side of the machine tool, the movable frame is connected to the machine tool through a sliding assembly, a rotating disk is rotatably installed in the front end side wall of the machine tool, a built-in drive acting on the rotating disk is arranged inside the machine tool, an electric telescopic rod is arranged at the axial center position of the rotating disk, a three-jaw chuck is arranged at the front end axial center position of the electric telescopic rod, the three-jaw chuck is used to fix the processing rod material, a mounting frame is arranged on the front side of the three-jaw chuck, a connecting rod is fixedly connected to the middle part of the upper end of the mounting frame, the connecting rod is connected to the movable frame through a fixing mechanism, and a No. 1 tool and a No. 2 tool are fixedly connected to the side walls of the two vertical rods of the mounting frame that are close to each other.

[0006] As a further preferred embodiment of the present technical solution, the mounting frame is an inverted U-shaped structure.

[0007] As a further preferred embodiment of the present technical solution, the No. 1 tool and the No. 2 tool are symmetrically distributed with the axis of the three-jaw chuck as the center axis.

[0008] As a further preferred embodiment of the present technical solution, the fixing mechanism includes a fixed vertical plate, a plurality of the fixed vertical plates are fixedly connected to the front end side wall of the movable frame, an installation groove acting on the connecting rod is formed between two adjacent fixed vertical plates, two storage grooves distributed up and down are provided on the fixed vertical plate, and a threaded hole is provided on the bottom wall of the inner cavity of the storage groove.

[0009] As a further preferred embodiment of the present technical solution, the plurality of fixed vertical plates are arranged in a linear array.

[0010] As a further preferred embodiment of the present technical solution, the distance between the bottom of the inner cavity of the storage groove and the front end side wall of the movable frame is smaller than the thickness of the connecting rod.

[0011] As a further preferred embodiment of the present technical solution, the sliding assembly includes guide rails, two guide rails are fixedly installed on the front end side wall of the machine tool, and a slide groove that slidably fits with the guide rails is provided at the rear end of the movable frame.

[0012] The utility model provides a high straightness processing device for micro pinhole needle head, which has the following features:

[0013] Beneficial effects:

[0014] The utility model adopts a unique structural design that makes the No. 1 tool and the No. 2 tool axially symmetrically distributed, so that when processing the product, the No. 1 tool and the No. 2 tool will act on both sides of the bar material respectively, so that the two sides of the bar material can be cut at the same time. This cutting method can avoid the bar material from giving up the tool during the processing, effectively ensure the straightness of the product after processing, and improve the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a front view of the utility model;

[0017] Figure 3 For this utility model Figure 1 The structural diagram of A in the figure;

[0018] Figure 4 For this utility model Figure 2 Schematic diagram of the structure of B;

[0019] In the figure: 1. Machine tool; 2. Movable frame; 3. Slide; 4. Guide rail; 5. Three-jaw chuck; 6. Rotating plate; 7. Electric telescopic rod; 8. Tool No. 1; 9. Tool No. 2; 10. Mounting frame; 11. Connecting rod; 12. Fixed vertical plate; 13. Threaded hole; 14. Mounting slot; 15. Storage slot. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figures 1 to 4 As shown, in this embodiment, a high straightness processing device for a micro pinhole needle head comprises a machine tool 1, a movable frame 2 is arranged on the front side of the machine tool 1, the movable frame 2 is connected to the machine tool 1 through a sliding assembly, a rotating disk 6 is rotatably installed in the front end side wall of the machine tool 1, a built-in drive acting on the rotating disk 6 is arranged inside the machine tool 1, an electric telescopic rod 7 is arranged at the axis center position of the rotating disk 6, a three-jaw chuck 5 is arranged at the front axis center position of the electric telescopic rod 7, the three-jaw chuck 5 is used to fix the processing bar material, a mounting frame 10 is arranged on the front side of the three-jaw chuck 5, the mounting frame 10 is an inverted U-shaped structure, a connecting rod 11 is fixedly connected to the middle part of the upper end of the mounting frame 10, and the connecting rod 11 is connected to the movable frame 2 through a fixing mechanism, and a No. 1 tool 8 and a No. 2 tool 9 are fixedly connected to the mutually adjacent side walls of the two vertical rods of the mounting frame 10, and the No. 1 tool 8 and the No. 2 tool 9 are symmetrically distributed with the axis center line of the three-jaw chuck 5 as the center axis.

[0022] Among them, the fixing mechanism includes a fixed vertical plate 12, and multiple fixed vertical plates 12 are fixedly connected to the front end side wall of the movable frame 2. The multiple fixed vertical plates 12 are in a linear array, and a mounting groove 14 acting on the connecting rod 11 is formed between two adjacent fixed vertical plates 12. Two storage grooves 15 distributed up and down are opened on the fixed vertical plate 12, and the bottom wall of the inner cavity of the storage groove 15 is opened with a threaded hole 13.

[0023] When in use, the connecting rod 11 is placed in the installation groove 14, and the external screw is rotated and installed into the threaded hole 13. The nut position of the external screw will be pressed on the front end side wall of the connecting rod 11, thereby fixing the connecting rod 11, and then fixing the No. 1 tool 8 and the No. 2 tool 9.

[0024] The distance between the bottom of the inner cavity of the storage groove 15 and the front end side wall of the movable frame 2 is smaller than the thickness of the connecting rod 11 .

[0025] Such an arrangement can ensure that the nut of the external screw can contact the connecting rod 11.

[0026] The sliding assembly includes guide rails 4 , two guide rails 4 are fixedly mounted on the front side wall of the machine tool 1 , and a slide groove 3 slidably engaged with the guide rails 4 is provided at the rear end of the movable frame 2 .

[0027] The sliding fit between the guide rail 4 and the slide groove 3 can ensure that the movable frame 2 is slidably connected to the machine tool 1, and the movement of the movable frame 2 is driven by the driving structure on the machine tool 1 (the driving structure is not the protection content of this application, is not described here, and is not shown in the drawings of the specification).

[0028] The utility model provides a high straightness processing device for a micro pinhole needle head, and the specific working principle is as follows:

[0029] The connecting rod 11 is placed in the installation groove 14, and the external screw is rotated and installed into the threaded hole 13. The nut position of the external screw will press on the front end side wall of the connecting rod 11, so as to fix the connecting rod 11, and then fix the No. 1 tool 8 and the No. 2 tool 9, and control the movement of the movable frame 2 through the driving structure on the machine tool 1 (the driving structure is not the protection content of this application, and is not described here, and is not shown in the drawings of the specification), so that the symmetry axis of the No. 1 tool 8 and the No. 2 tool 9 is aligned with the axis of the three-jaw chuck 5, and then The bar to be processed is fixedly clamped by the three-jaw chuck 5, and the built-in drive of the machine tool 1 controls the rotation of the rotating disk 6, thereby driving the electric telescopic rod 7, the three-jaw chuck 5 and the bar to rotate. The telescopic length of the electric telescopic rod 7 can be controlled to control the movement of the bar between the No. 1 tool 8 and the No. 2 tool 9. The No. 1 tool 8 and the No. 2 tool 9 will act on both sides of the bar respectively, so that both sides of the bar are cut at the same time, which can avoid the phenomenon of tool letting go during the processing of the bar, effectively ensure the straightness of the product after processing, and improve the processing efficiency.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for processing a micro pinhole needle with high straightness, comprising a machine tool (1), characterized in that: A movable frame (2) is arranged at the front side of the machine tool (1), and the movable frame (2) is connected to the machine tool (1) through a sliding assembly. A rotating disk (6) is rotatably installed in the front end side wall of the machine tool (1). A built-in drive acting on the rotating disk (6) is arranged inside the machine tool (1). An electric telescopic rod (7) is arranged at the axis center position of the rotating disk (6), and a three-jaw chuck (5) is arranged at the front axis center position of the electric telescopic rod (7). The three-jaw chuck (5) is used to fix the processing bar material. A mounting frame (10) is arranged at the front side of the three-jaw chuck (5). A connecting rod (11) is fixedly connected to the middle part of the upper end of the mounting frame (10). The connecting rod (11) is connected to the movable frame (2) through a fixing mechanism. A first tool (8) and a second tool (9) are fixedly connected to the side walls of two vertical rods of the mounting frame (10) that are close to each other.

2. A micro pinhole needle head high straightness processing device according to claim 1, characterized in that: The mounting frame (10) is an inverted U-shaped structure.

3. A micro pinhole needle head high straightness processing device according to claim 1, characterized in that: The first tool (8) and the second tool (9) are symmetrically distributed with the axis of the three-jaw chuck (5) as the center axis.

4. A micro pinhole needle head high straightness processing device according to claim 1, characterized in that: The fixing mechanism comprises a fixing vertical plate (12), a plurality of the fixing vertical plates (12) are fixedly connected to the front end side wall of the movable frame (2), a mounting groove (14) acting on the connecting rod (11) is formed between two adjacent fixing vertical plates (12), two receiving grooves (15) distributed up and down are provided on the fixing vertical plate (12), and a threaded hole (13) is provided on the inner cavity bottom wall of the receiving groove (15).

5. A micro pinhole needle head high straightness processing device according to claim 4, characterized in that: The plurality of fixed vertical plates (12) are arranged in a linear array.

6. A micro pinhole needle head high straightness processing device according to claim 4, characterized in that: The distance between the bottom of the inner cavity of the storage groove (15) and the front end side wall of the movable frame (2) is smaller than the thickness of the connecting rod (11).

7. The device for processing a micro pinhole needle with high straightness according to claim 1, characterized in that: The sliding assembly comprises guide rails (4), two guide rails (4) are fixedly mounted on the front end side wall of the machine tool (1), and a slide groove (3) which is slidably engaged with the guide rails (4) is provided at the rear end of the movable frame (2).

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