Caliper type catheter marking machine

Abstract

The present invention proposes a caliper-type catheter marking machine, which belongs to the field of aerospace technology. The catheter marking machine includes a guide wheel frame, a caliper-type positioning block, a guide block, a shell, a handle, a guide rail and a guide rail bracket. The present invention achieves the purpose of clamping the pipeline through the caliper-type positioning block, so that the catheter is always in a relatively static state relative to the marking machine during the entire working process of the marking machine, ensuring that the guide wheel frame can draw clear and continuous lines during use. The present invention can automatically adapt to the drawing of color circles and process markings for catheters with different outer diameters through the torsion spring on the guide wheel frame and the compression spring on the caliper-type positioning block. No manual adjustment is required. The marking wheel absorbs enough paint and can draw catheter color circles and process markings multiple times, thereby improving the manufacturing accuracy of color circles and process markings and improving work efficiency.

Description

Technical Field

[0001] The invention belongs to the field of aerospace technology and relates to a caliper-type catheter marking machine, which is used for drawing color circles and process marking lines in the catheter production process. Background Art

[0002] Aviation hydraulic conduits use color circles to distinguish the purpose and function of the conduits, and fuel and other system conduits use process markings on the ends of the conduits as position warnings during assembly. Currently, in the production process of conduits, the drawing of color circles and process markings is manual, and the specific methods are as follows:

[0003] 1. Drawing of color circle: Cut a leather strip of corresponding width, apply the paint on the leather strip with a brush, align the leather strip with the marked part of the part and circle it around, so that the paint is evenly attached to the circumference of the catheter;

[0004] 2. Drawing of marking lines: Dip the cotton thread into the corresponding paint, align the cotton thread soaked with paint with the marked part of the catheter and circle it around so that the paint is evenly adhered to the circumference of the catheter.

[0005] The above method has low manufacturing precision and low production efficiency. Therefore, there is an urgent need for a portable mechanism to draw color circles and process markings more efficiently. Summary of the invention

[0006] In order to solve the above problems, the present invention proposes a caliper-type catheter marking mechanism, which is used to improve the drawing accuracy and work efficiency when drawing color circles and process markings on aviation catheters.

[0007] The technical solution of the present invention is:

[0008] A caliper-type catheter marking machine comprises a guide wheel frame 1, a caliper-type positioning block 2, a guide block 3, a shell 4, a handle 5, a guide rail 12 and a guide rail bracket 13.

[0009] The housing 4 is a circular housing structure composed of two semicircular rings, on which a handle 5 is provided; a plurality of guide rail brackets 13 are distributed on the inner wall of the housing 4 at intervals of 30° along the circumferential direction. The guide rail 12 is composed of two circular guide rails with different diameters, and the guide rail 12 is installed on the guide rail bracket 13 and supported by the guide rail bracket 13.

[0010] The guide wheel frame 1 includes a wheel frame 6, a guide wheel 7, a line drawing wheel 8, a torsion spring 9, an arc connecting rod 10 and a connecting rod 11. The wheel frame 6 is a T-shaped structure composed of an arc-shaped crossbeam and a vertical rod. The lower surface of the two ends of the arc-shaped crossbeam is symmetrically connected with the guide wheel 7 through pins, and the guide wheel 7 is installed on the guide rail 12; the end of the vertical rod is connected to one end of two connecting rods 11 through pins, and the other ends of the two connecting rods 11 are connected to a line drawing wheel 8. The arc-shaped crossbeam and the vertical rod of the wheel frame 6 are connected to one end of the two arc-shaped connecting rods 10 through pins at the intersection position, and the other ends of the two arc-shaped connecting rods 10 are respectively connected to the middle of the two connecting rods 11. The torsion spring 9 is installed on the pin connecting the wheel frame 6 and the connecting rod 11, and the protruding parts of the two ends of the torsion spring 9 are respectively clamped on the pin connecting the arc-shaped connecting rod 10 and the connecting rod 11. The line drawing wheel 8 is always pressed against the outer surface of the catheter under the pressure provided by the torsion spring 9. The marking wheel 8 contains a fiber wheel that can absorb paint. The fiber wheel absorbs enough paint at one time to mark the catheter multiple times, and the marking wheel with different contact widths with the outer surface of the catheter can be replaced according to usage requirements to meet usage requirements.

[0011] An arc groove is provided on the front side of the housing 4, and the hand button 14 is connected to the middle part of the arc beam of the wheel frame 6 through the arc groove. The hand button 14 is slid along the arc groove to make the guide wheel frame 1 move in a circle along the guide rail 12 through the guide wheel 7.

[0012] The guide block 3 is symmetrically arranged on the inner wall of the shell 4 and located behind the guide rail bracket 13. The guide block 3 is connected to the caliper-type positioning block 2 in the axial direction through the compression spring 15, so that the caliper-type positioning block 2 can move in the axial direction of the guide block 3 to achieve the clamping and positioning effect on catheters with different outer diameters.

[0013] The beneficial effects of the present invention are:

[0014] (1) The present invention achieves the purpose of clamping the pipe by using a caliper-type positioning block, so that the pipe is always in a relatively static state relative to the line drawing machine during the entire working process of the line drawing machine, ensuring that the guide wheel frame can draw clear and continuous lines during use.

[0015] (2) The present invention can automatically adapt to the drawing of color rings and process markings of catheters with different outer diameters through the torsion spring on the guide wheel frame and the compression spring on the caliper-type positioning block. No manual adjustment is required. The drawing wheel absorbs sufficient paint and can draw the catheter color rings and process markings multiple times, thereby improving the manufacturing accuracy of the color rings and process markings and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a caliper-type catheter marking machine.

[0017] Figure 2 This is the left side view of the caliper-type catheter marking machine.

[0018] Figure 3 This is a front sectional view of a caliper-type catheter marking machine.

[0019] Figure 4 This is a rear cross-sectional view of a caliper-type catheter marking machine.

[0020] Among them: 1 guide wheel frame; 2 caliper type positioning block; 3 guide block; 4 housing; 5 handle; 6 wheel frame; 7 guide wheel; 8 drawing wheel; 9 torsion spring; 10 arc connecting rod; 11 connecting rod; 12 guide rail; 13 guide rail bracket; 14 hand button; 15 compression spring. DETAILED DESCRIPTION

[0021] The specific implementation of the present invention is further explained below in conjunction with the examples and drawings, but is not intended to limit the present invention.

[0022] like Figure 1 As shown, the present invention provides a caliper-type catheter marking machine, which includes a guide wheel frame 1, a caliper-type positioning block 2, a guide block 3, a housing 4, a handle 5, a guide rail 12 and a guide rail bracket 13.

[0023] The housing 4 is a circular housing structure composed of two semicircular rings, on which a handle 5 is provided; a plurality of guide rail brackets 13 are distributed on the inner wall of the housing 4 at intervals of 30° along the circumferential direction. The guide rail 12 is composed of two circular guide rails with different diameters, and the guide rail 12 is installed on the guide rail bracket 13 and supported by the guide rail bracket 13.

[0024] like Figure 3 As shown, in this embodiment, the guide wheel frame 1 is composed of a wheel frame 6, a guide wheel 7, a line drawing wheel 8, a torsion spring 9, an arc-shaped connecting rod 10 and a connecting rod 11. Among them, the wheel frame 6 is a T-shaped structure composed of an arc-shaped crossbeam and a vertical rod, and the lower surface of the two ends of the arc-shaped crossbeam is symmetrically connected with the guide wheel 7 through pins, and the end of the vertical rod is connected to one end of two connecting rods 11 through pins, and the other ends of the two connecting rods 11 are connected to a line drawing wheel 8. The intersection of the arc-shaped crossbeam and the vertical rod of the wheel frame 6 is connected to one end of the two arc-shaped connecting rods 10 through pins, and the other ends of the two arc-shaped connecting rods 10 are respectively connected to the middle of the two connecting rods 11. The torsion spring 9 is arranged on the pin connecting the wheel frame 6 and the connecting rod 11, and the protruding parts of the torsion spring 9 at both ends are respectively clamped on the pin connecting the arc-shaped connecting rod 10 and the connecting rod 11. In this way, for catheters with different outer diameters, the angle between the arc-shaped connecting rods 10 and 11 will increase under the action of the torsion spring 9, and at the same time provide pressure on the drawing wheel 8, so that the drawing wheel 8 is always pressed against the outer surface of the catheter. The drawing wheel 8 contains a fiber wheel that can absorb paint. The fiber wheel absorbs enough paint at one time and can mark the catheter multiple times. The drawing wheel with different contact widths with the outer surface of the catheter can be replaced according to the use requirements to meet the use requirements.

[0025] An arc groove is provided on the front side of the housing 4, and the hand button 14 is connected to the middle part of the arc beam of the wheel frame 6 through the arc groove. The hand button 14 is slid along the arc groove on the housing to make the guide wheel frame 1 move in a circle along the guide rail 12 through the guide wheel 7.

[0026] like Figure 4 As shown, in this embodiment, the two guide blocks 3 are symmetrically arranged on the inner wall of the outer shell 4 and located behind the guide rail bracket 13. The guide blocks 3 are connected to the caliper-type positioning blocks 2 in the axial direction through the compression spring 15, so that the two caliper-type positioning blocks 2 can move in the axial direction of the guide blocks 3 to realize the clamping and positioning of catheters with different outer diameters.

[0027] The present invention provides a caliper-type catheter marking machine, which is small in size, light in weight, and easy to carry. A caliper-type positioning block 2 is used to ensure the stability of the guide wheel frame 1 when it moves along the guide rail 12. The guide wheel frame 1 has a large rotation angle, which can fully meet the marking work around the pipeline and maintain good accuracy.

[0028] The above description is only an embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, expansion, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A caliper-type catheter marking machine, characterized in that: The caliper-type catheter marking machine comprises a guide wheel frame (1), a caliper-type positioning block (2), a guide block (3), a housing (4), a handle (5), a guide rail (12) and a guide rail bracket (13); The housing (4) is a circular shell structure composed of two semicircular rings, on which a handle (5) is provided; a plurality of guide rail brackets (13) are distributed on the inner wall of the housing (4) at intervals of 30° in the circumferential direction; the guide rail (12) is composed of two circular guide rails of different diameters, and the guide rail (12) is installed on the guide rail bracket (13) and supported by the guide rail bracket (13); The guide wheel frame (1) comprises a wheel frame (6), a guide wheel (7), a line drawing wheel (8), a torsion spring (9), an arc-shaped connecting rod (10) and a connecting rod (11); wherein the wheel frame (6) is a T-shaped structure composed of an arc-shaped cross beam and a vertical rod, and the lower surfaces of the two ends of the arc-shaped cross beam are symmetrically connected with the guide wheels (7), and the guide wheels (7) are installed on the guide rail (12); the end of the vertical rod is connected to one end of two connecting rods (11), and the other ends of the two connecting rods (11) are respectively connected to a line drawing wheel (8); the wheel frame The arc-shaped cross beam (6) is connected to one end of two arc-shaped connecting rods (10) at the intersection of the arc-shaped cross beam and the vertical rod, and the other ends of the two arc-shaped connecting rods (10) are respectively connected to the middle parts of the two connecting rods (11); the torsion spring (9) is installed on the pin connecting the wheel frame (6) and the connecting rod (11), and the protruding parts at both ends of the torsion spring (9) are respectively clamped on the pin connecting the arc-shaped connecting rod (10) and the connecting rod (11); the drawing wheel (8) is always pressed against the outer surface of the conduit under the pressure provided by the torsion spring (9); An arc groove is provided on the front side of the housing (4), and a hand button (14) is connected to the middle part of the arc beam of the wheel frame (6) through the arc groove. The hand button (14) is slid along the arc groove to make the guide wheel frame (1) move in a circular motion along the guide rail (12) through the guide wheel (7); The guide block (3) is symmetrically arranged on the inner wall of the housing (4) and is located behind the guide rail bracket (13). The guide block (3) is connected to the caliper-type positioning block (2) in the axial direction via a compression spring (15), so that the caliper-type positioning block (2) can move in the axial direction of the guide block (3) to achieve a clamping and positioning effect on catheters with different outer diameters.

2. A caliper-type catheter marking machine according to claim 1, characterized in that: The line drawing wheel (8) contains a fiber wheel capable of absorbing paint, and the fiber wheel absorbs enough paint at one time to carry out multiple catheter line drawing.

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