A scribing device, method and system

Abstract

The application discloses a kind of line marking device, method and system, line marking device includes rotating seat, rotating piece, support plate, support frame, grinding head and fixed rod, the support frame and rotating piece connect, the rotating piece and rotating seat rotation connection, the rotating seat is connected with support plate, the support plate is connected with wheel, and the wheel walks on guide rail;The fixed rod is connected with grinding head, and there is connected with scribe on the grinding head, the scribe is perpendicular to the central axis of fixed rod and rotates around it, and the central axis of fixed rod is parallel to the central axis of the workpiece to be scribed;It further includes a turntable, the turntable includes base, turntable and first connecting piece, the central axis of the base is vertically provided with rotating shaft, the center of the turntable is provided with through-hole, and the rotating shaft passes through the through-hole;The guide rail is connected with the upper surface of turntable, and the depth of scribe on the workpiece to be scribed is unchanged while the wheel moves on guide rail.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of line marking, in particular to a line marking device, method and system BACKGROUND

[0002] The heat shield is a key component of the missile body, usually installed in the seeker of the missile head, playing a key role in heat protection. The heat shield is mostly made of quartz ceramic material, which is prone to cracking and edge collapse during processing. The inner circle line marking of the heat shield is mostly processed by diamond grinding wheel grinding, but the processing efficiency and precision are relatively low. The traditional line marking method is mostly on the plane or curved surface, and there is no mature processing method on the market for the streamline type of the heat shield. SUMMARY

[0003] In view of the above problems, the present application designs a line marking device, which comprises a rotating seat, a rotating part, a support plate, a support frame, a grinding head and a fixed rod, the support frame and the rotating part are connected, the rotating part and the rotating seat are rotationally connected, the rotating seat is connected with the support plate, the support plate is connected with the wheel, and the wheel moves on the guide rail; the fixed rod is connected with the grinding head, the grinding head is connected with a marking knife, the marking knife is perpendicular to the center axis of the fixed rod and rotates around it, and the center axis of the fixed rod is parallel to the center axis of the workpiece to be marked;

[0004] It also comprises a rotary table, the rotary table comprises a base, a rotating disc and a first connecting piece, the center of the base is vertically provided with a rotating shaft, the center of the rotating disc is provided with a through hole, and the rotating shaft penetrates through the through hole; the guide rail is connected with the upper surface of the rotating disc, the depth of the marking knife on the workpiece to be marked does not change while the wheel moves on the guide rail; the lower surface of the rotating disc is provided with a groove, the first connecting piece is arranged in the groove, the upper surface of the first connecting piece is in contact with the rotating disc, and the lower surface of the first connecting piece is in contact with the base; the first connecting piece is provided with a first ball, and the diameter of the first ball is greater than the thickness of the first connecting piece and the depth of the groove.

[0005] Compared with the prior art, the present application has the following advantages:

[0006] 1. The present application realizes line marking processing inside the streamline type of the rotary body by rotating the marking knife and moving the position of the support frame; the direction of the guide rail is set so that the depth of the marking knife on the workpiece to be marked does not change while the wheel moves on the guide rail, which can adapt to the shape of the streamline type of the rotary body.

[0007] 2. The present application sets the rotary table, arranges a plurality of guide rails and workpieces to be marked on the rotary table, realizes continuous processing of the workpieces to be marked by rotating, which is beneficial to improve the work efficiency; the first connecting piece is arranged between the rotating disc and the base, which improves the flexibility of the rotating disc.

[0008] Preferably, a stand is further included, a first motor is arranged above the stand, a lead screw is connected to the first motor, and the fixed rod is connected to the lead screw through a lead screw nut.

[0009] The beneficial effect of the preferred embodiment is that the fixed rod is lifted and lowered on the lead screw under the drive of the first motor through the cooperation of the lead screw and the lead screw nut, which is conducive to adjusting the height of the ruling tool to adapt to different specifications of the workpiece to be ruled.

[0010] Preferably, a first ball seat is arranged on the first connecting piece, the first ball is arranged in the first ball seat, and the diameters of the upper and lower openings of the first ball seat are smaller than the diameter of the first ball.

[0011] The beneficial effect of the preferred embodiment is that the first ball is embedded in the first ball seat and can simultaneously contact the rotating disc and the base, so that the rotating disc can roll through the first ball on the first connecting piece and rotate around the rotating shaft on the base, improving the flexibility of the rotating disc rotation.

[0012] Preferably, an axle is further included, the axle is connected to wheels at both ends, and a second motor is connected to the axle.

[0013] The beneficial effect of the preferred embodiment is that the second motor is connected to the axle, the axle is connected to the wheels, and the axle drives the wheels to move on the guide rail through the second motor, realizing the movement of the support frame on the guide rail.

[0014] Preferably, a third motor is arranged on the support plate, a gear is connected to the third motor, a fixed part is arranged in the rotating seat, a main shaft is connected to the center of the rotating part, the main shaft is connected to the fixed part through a bearing, an inner tooth is arranged at one end of the main shaft, the inner tooth is engaged with the gear, and a second ball is arranged between the rotating seat and the rotating part.

[0015] The beneficial effect of the preferred embodiment is that the third motor drives the gear to rotate, the gear is engaged with the inner tooth and drives the rotating part to rotate, and the second ball is arranged between the rotating seat and the rotating part, which is conducive to reducing the friction and improving the flexibility of rotation.

[0016] Preferably, a base is further included, and the base and the stand are connected to the base.

[0017] The beneficial effect of the preferred embodiment is that the base is arranged to connect the base and the stand, improving the stability of the entire ruling device.

[0018] Preferably, the inner profile line of the support frame is consistent with the outer profile line of the workpiece to be ruled.

[0019] The beneficial effect of the preferred embodiment is that grinding the inner profile of the support frame to be consistent with the outer profile of the workpiece to be engraved can make the workpiece to be engraved closely adhere to the support frame, avoiding the workpiece to be engraved from being damaged due to excessive stress.

[0020] Preferably, the diameter of the fixed rod near the end of the grinding head is smaller than that near the end of the lead screw.

[0021] The beneficial effect of the preferred embodiment is that the fixed rod adopts a telescopic design, which can ensure that the engraving tool accurately contacts the starting position of the marking line of the workpiece to be engraved; the end of the fixed rod near the grinding head is relatively thin, which can ensure that the fixed rod does not contact the inner wall of the workpiece to be engraved when the workpiece to be engraved with a large depth is processed, thereby improving the safety of the workpiece to be engraved.

[0022] In the second aspect, the present application designs a line engraving method, which applies the line engraving device described above.

[0023] Compared with the prior art, the beneficial effect of the present application is that the line engraving method designed by the present application realizes line engraving on the heat shield which is a streamlined rotary body, and improves the precision and efficiency of line engraving processing.

[0024] In the third aspect, the present application further provides a line engraving system, which comprises a data acquisition module, a calculation module and an execution module, wherein,

[0025] The data acquisition module is configured to acquire the theoretical inner profile of the workpiece to be engraved, the rotating speed of the rotating member and the shape of the marking line.

[0026] The calculation module is configured to calculate the feed speed of the wheel according to the theoretical inner profile of the workpiece to be engraved, the rotating speed of the rotating member and the shape of the marking line.

[0027] The execution module is configured to drive the wheel to move on the guide rail according to the feed speed of the wheel.

[0028] Compared with the prior art, the beneficial effect of the present application is that the theoretical inner profile of the workpiece to be engraved, the rotating speed of the rotating member and the shape of the marking line are calculated to obtain the feed speed of the wheel, and the wheel is driven to move by the second motor, thereby effectively improving the precision of line engraving processing. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 FIG. 1 is a front view of a line engraving device according to an embodiment of the present application;

[0030] Figure 2 FIG. 2 is a top view of the line engraving device according to the embodiment of the present application;

[0031] Figure 3 FIG. 3 is a schematic view of the lower surface of the turntable according to the embodiment of the present application;

[0032] Figure 4 This is a schematic diagram of the structure of the turntable and the first connecting member in an embodiment of the present invention;

[0033] Figure 5 This is a side view of the first connector according to an embodiment of the present invention;

[0034] Figure 6 This is a schematic diagram showing the connection between the rotating seat and the rotating component in an embodiment of the present invention;

[0035] Figure 7 This is a schematic diagram of the second motor drive structure according to an embodiment of the present invention.

[0036] 1-Rotating seat, 2-Rotating component, 3-Support plate, 4-Support frame, 5-Grinding head, 6-Fixing rod, 7-Wheel, 8-Guide rail, 9-Carving knife, 10-Turntable, 11-Base, 12-Turn disk, 13-First connecting component, 14-Shaft, 15-Through hole, 16-Groove, 17-First ball bearing, 18-Standing base, 19-First motor, 20-Lead screw, 21-Lead nut, 22-First ball bearing seat, 23-Axle, 24-Second motor, 25-Third motor, 26-Gear, 27-Fixing component, 28-Main shaft, 29-Bearing, 30-Internal gear, 31-Second ball bearing, 32-Base. Detailed Implementation

[0037] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention.

[0038] This embodiment provides a scribing device, such as... Figures 1-2 As shown, the system includes a rotating base 1, a rotating component 2, a support plate 3, a support frame 4, a grinding head 5, a fixing rod 6, and a stand 18. The inner contour line of the support frame 4 is consistent with the outer contour line of the workpiece to be engraved and is connected to the rotating component 2. In this preferred embodiment, the workpiece to be engraved is a heat insulation cover. The rotating component 2 and the rotating base 1 are rotatably connected. The rotating base 1 is connected to the support plate 3, and the support plate 3 is connected to the wheel 7. The wheel 7 travels on the guide rail 8.

[0039] The fixing rod 6 is connected to the grinding head 5. A carving knife 9 is connected to the grinding head 5. The carving knife 9 is perpendicular to the central axis of the fixing rod 6 and rotates around it. The central axis of the fixing rod 6 is parallel to the central axis of the heat insulation cover. A first motor 19 is provided above the stand 18. The first motor 19 is connected to the lead screw 20. The fixing rod 6 is connected to the lead screw 20 through the lead screw nut 21 and moves up and down on the lead screw 20 under the drive of the first motor 19. As an optional solution, the diameter of the fixing rod 6 near the grinding head 5 is smaller than that of the end near the lead screw 20. In this embodiment, the fixing rod 6 adopts a variable diameter design, with the diameter being smaller the closer it is to the grinding head 5.

[0040] Also include the rotating platform 10 and base 32, the rotating platform 10 includes the base 11, rotating disc 12 and first connecting piece 13, base 11, pedestal 18 are connected with base 32; The rotating shaft 14 is vertically arranged in the center of the base 11, the rotating disc 12 is provided with a through hole 15 in the center, and the rotating shaft 14 passes through the through hole 15; The guide rail 8 is connected with the upper surface of the rotating disc 12, and the depth of the line engraved on the heat shield by the scribe 9 does not change while the wheel 7 moves on the guide rail 8. Figure 3 As shown in the lower surface of the rotating disc 12 is provided with a groove 16, as shown in the lower surface of the rotating disc 12 is provided with a groove 16, Figure 4 The first connecting piece 13 is placed in the groove 16, and the upper surface is in contact with the rotating disc 12 and the lower surface is in contact with the base 11. The first connecting piece 13 is provided with a first ball 17 and a first ball seat 22, the diameter of the first ball 17 is greater than the thickness of the first connecting piece 13, and also greater than the depth of the groove 16, the first ball 17 is arranged in the first ball seat 22, the diameter of the upper and lower openings of the first ball seat 22 is smaller than the diameter of the first ball 17, and the preferred embodiment is shown in the upper opening of the first ball seat 22 is parallel to the upper surface of the first connecting piece 13, and the lower opening of the first ball seat 22 is higher than the lower surface of the first connecting piece 13. Figure 5

[0041] As shown in the lower surface of the rotating disc 12 is provided with a groove 16, as shown in the lower surface of the rotating disc 12 is provided with a groove 16, Figure 7 The wheel 7 is connected by the axle 23, and the second motor 24 is connected to the axle 23, so that the second motor 24 drives the axle 23 and the wheel 7 to move on the guide rail 8.

[0042] As shown in the lower surface of the rotating disc 12 is provided with a groove 16, as shown in the lower surface of the rotating disc 12 is provided with a groove 16, Figure 6 The third motor 25 is arranged on the support plate 3, the third motor 25 is connected with the gear 26, the rotating seat 1 is provided with a fixed part 27, the center of the rotating part 2 is connected with the main shaft 28, the main shaft 28 is connected with the fixed part 27 through the bearing 29, one end of the main shaft 28 is provided with the inner tooth 30, the inner tooth 30 is engaged with the gear 26; The second ball 31 is arranged between the rotating seat 1 and the rotating part 2.

[0043] The embodiment also provides a line marking system, comprising a data acquisition module, a calculation module and an execution module, wherein the data acquisition module is used for acquiring the theoretical inner contour line of the workpiece to be marked, the rotating speed of the rotating part 2 and the shape of the marking line, the calculation module is used for calculating the feeding speed of the wheel 7 according to the theoretical inner contour line of the workpiece to be marked, the rotating speed of the rotating part 2 and the shape of the marking line; The execution module is used for driving the wheel 7 to move on the guide rail 8 according to the feeding speed of the wheel 7. The preferred embodiment is that the workpiece to be marked is a heat shield, the shape of the marking line is a spiral line, the theoretical inner contour line of the heat shield is a conical body, and the rotating speed of the rotating part is X, so the calculation method of the feeding speed is that a point A is determined on the spiral line, the distance of the point A rotating one turn on the spiral line and moving along the axial direction of the heat shield is calculated, and then multiplied by the rotating speed X, which is the feeding speed of the wheel 7.​

[0044] The working principle of the line marking device is as follows: according to the theoretical inner shape line of the heat shield, the shape, starting position of the marking line and the feeding speed of the rotating seat 1 are calculated; according to the theoretical outer shape line of the heat shield, the inner shape line of the support frame 4 is ground; the heat shield is placed in the support frame 4, different specifications of grinding heads 5 are selected according to the width requirement of the marking line, the marking cutter 9 is adjusted to the same height of the starting position of the marking line through the screw rod 20 and the screw nut 21, and the marking cutter 9 rotates; the wheel 7 drives the support frame 4 to move on the guide rail, and the rotating part 2 drives the support frame 4 to rotate, that is, one line marking process is completed, then the rotating disc 12 is rotated, and the next heat shield is processed.

[0045] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the same; based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A scribing device, characterized in that, The device includes a rotating base, a rotating component, a support plate, a support frame, a grinding head, and a fixed rod. The support frame and the rotating component are connected, the rotating component and the rotating base are rotatably connected, the rotating base is connected to the support plate, the support plate is connected to a wheel, and the wheel travels on a guide rail. The fixed rod is connected to the grinding head, and a carving knife is attached to the grinding head. The carving knife is perpendicular to the central axis of the fixed rod and rotates around it. The central axis of the fixed rod is parallel to the central axis of the workpiece to be engraved. It also includes a turntable, which comprises a base, a turntable, and a first connecting member. The base has a vertically arranged rotating shaft at its center, and the turntable has a through hole at its center through which the rotating shaft passes. The guide rail is connected to the upper surface of the turntable, and while the wheel moves on the guide rail, the depth of the engraving on the workpiece remains unchanged. The lower surface of the turntable has a groove, and the first connecting member is placed in the groove. The upper surface of the first connecting member contacts the turntable, and the lower surface of the first connecting member contacts the base. The first connecting member has a first ball bearing, the diameter of which is greater than the thickness of the first connecting member and the depth of the groove. The workpiece to be marked is a heat shield, and the shape of the marking line is a spiral. The guide rail direction is set so that while the wheel moves on the guide rail, the depth of the engraving on the workpiece remains unchanged, which can adapt to the streamlined shape of the rotating body. Continuous processing of the workpiece to be engraved is achieved by rotation.

2. The scribing device according to claim 1, characterized in that, It also includes a stand, on which a first motor is provided, the first motor is connected to a lead screw, and the fixing rod is connected to the lead screw through a nut.

3. The scribing device according to claim 1, characterized in that, The first connector is provided with a first ball seat, and the first ball is disposed in the first ball seat. The diameters of the upper and lower openings of the first ball seat are both smaller than the diameter of the first ball.

4. The scribing device according to claim 1, characterized in that, It also includes an axle, the two ends of which are connected to wheels, and a second motor is connected to the axle.

5. The scribing device according to claim 1, characterized in that, The support plate is equipped with a third motor, which is connected to a gear. The rotating seat is equipped with a fixing component. The center of the rotating component is connected to a main shaft, which is connected to the fixing component through a bearing. One end of the main shaft is equipped with internal teeth that mesh with the gear. A second ball bearing is provided between the rotating seat and the rotating component.

6. The scribing device according to claim 1, characterized in that, It also includes a base, and the base and the upright are both connected to the base.

7. The scribing device according to claim 1, characterized in that, The inner contour of the support frame is consistent with the outer contour of the workpiece to be engraved.

8. The scribing device according to claim 1, characterized in that, The diameter of the fixed rod near the grinding head is smaller than that near the stand.

9. A method for scribing lines, characterized in that, The scribing device according to any one of claims 1-8 is applied.

10. A scribing system, characterized in that, The scribing device according to any one of claims 1-8 includes a data acquisition module, a calculation module, and an execution module, wherein... The data acquisition module is configured to acquire the rotational speed of the rotating part of the workpiece to be engraved and the shape of the marking line; The calculation module is configured to calculate the wheel feed speed based on the rotational speed of the rotating part of the workpiece to be engraved and the shape of the marking line. The execution module is configured to drive the wheels to move on the guide rail at the feed rate.

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