Clamping device for saw cutting of pipe orifice of elbow titanium pipe

Abstract

The utility model discloses a clamping device for elbow titanium pipe opening saw cutting. The clamping device comprises an assembling mechanism for assembling and fastening a pipe body from the two ends of the pipe body, a scribing mechanism for forming perpendicular tangent line references on the outer surfaces of end openings in the two sides of the pipe body, and a rotating mechanism for rotating the pipe body in the circumferential direction. The assembling mechanism comprises a right-angle rod, a telescopic rod and a positioning ring plate; the scribing mechanism comprises scribing cylinders which are vertically arranged at the two ends of the right-angle rod and can be arranged on the outer side of the pipe end in a sleeving mode, and each scribing cylinder is provided with a scribing end face; the rotating mechanism is a base arranged on the bottom side of the right-angle rod. According to the clamping device, stable assembling of the bent pipe can be achieved through the assembling mechanism, on the basis, accurate carving of a cutting line is conducted on the circumferential face of the pipe opening of the pipe body through the vertical tangent line reference of the scribing mechanism, circumferential smooth carving of the carving line is facilitated through the rotating mechanism, meanwhile, follow-up circumferential saw cutting is also facilitated, and the machining efficiency of the bent pipe is improved. Therefore, the problem of inaccurate manual lineation and cutting at present is solved on the whole.

Description

Technical Field

[0001] The present application relates to the technical field of sawing the pipe opening of an elbow titanium tube, and in particular to a clamping device for sawing the pipe opening of an elbow titanium tube. Background Art

[0002] Elbow titanium tubes are usually used to connect the pipe ends of mutually perpendicular straight pipes to change the direction of the pipe body. At present, after the elbow titanium tube is processed and formed, its length is usually slightly longer than the designed connection length to avoid the large distance between the pipe ends on both sides and the pipe ends of the straight pipe or the pipe ends are not straight, and the position of the straight pipe changes and cannot be welded. Therefore, in the later use of the elbow titanium tube, there is usually a sawing operation on the pipe end.

[0003] At present, the sawing operation of the elbow titanium tube is as follows: Figure 2 As shown, firstly, an annular cutting line is carved on the outer wall of both ends of the pipe mouth, and then the annular cutting line is used as the cutting reference to perform the sawing operation of the pipe mouth. Since the structure of the bent pipe is usually a continuous arc structure, the axis position of the pipe mouth cannot be effectively determined, so when carving the cutting lines of the two pipe mouths, it cannot be ensured that the two carving lines are in a relatively vertical state. After sawing with the carving lines in the later stage, the two ends of the pipe mouth still cannot be accurately connected with the welding of the connected straight pipe.

[0004] At the same time, since the elbow titanium tube has a continuous arc structure, when it is flipped to carve the circumferential cutting line, the tube body cannot be stably placed and rotated, and the artificially carved circumferential cutting line is bent and deflected (such as Figure 4 Even when the marking line is relatively standard, the instability of the bending tube when it is turned over and the instability of manual operation will still cause the straightness of the tube cutting and the lack of verticality between the two sides of the tube, affecting the connection accuracy and strength with the branch pipe. Summary of the invention

[0005] In response to the above-mentioned problems, the present application aims to provide a clamping device for sawing the mouth of an elbow titanium tube, which can accurately mark the cutting line on the circumferential surface of the tube body at the mouth, and also facilitates subsequent circumferential sawing, thereby solving the current problems of manual marking and inaccurate cutting as a whole.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted in the present application is as follows: a clamping device for sawing the pipe mouth of an elbow titanium tube, characterized in that: the clamping device includes an assembling mechanism for assembling and fastening the tube body from both ends of the tube body, and a scribing mechanism for forming mutually perpendicular tangent references on the outer surfaces of the ports on both sides of the tube body, and also includes a rotating mechanism for rotating the tube body in the circumferential direction.

[0007] Preferably, the assembly mechanism comprises a right-angle rod, at the ends of which telescopic rods are vertically arranged, and at the ends of each telescopic rod a positioning ring plate is provided which is positioned and embedded in the inner wall of the tube body.

[0008] Preferably, the marking mechanism comprises marking cylinders which are vertically arranged at both ends of the right-angle rod and can be sleeved on the outside of the pipe end, each of the marking cylinders has a marking end face, and the telescopic rod is inserted into the marking cylinder.

[0009] Preferably, the rotating mechanism is a base arranged on the bottom side of the right-angle rod, and the right-angle rod is rotatably connected to the base.

[0010] The beneficial effects of the present application are as follows: the clamping device can achieve stable assembly of the bent pipe through the assembly mechanism, and on this basis, through the vertical tangent reference of the marking mechanism, the cutting line can be accurately engraved on the circumferential surface of the pipe body at the pipe mouth, and through the rotating mechanism, it is convenient to smoothly engrave the circumference of the marking line, and it is also convenient for subsequent circumferential sawing, thereby solving the current problems of inaccurate manual marking and cutting as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a diagram of the titanium tube elbow structure for this application.

[0012] Figure 2 This is a diagram showing the connection between the elbow titanium tube and the straight tube in this application.

[0013] Figure 3 For this application Figure 2 Enlarged view of the structure at point A in the middle.

[0014] Figure 4 This is a diagram showing the deflection and offset of the sawing line manually carved on the elbow titanium tube of this application.

[0015] Figure 5 This is a diagram of the overall structure of the clamping device of this application.

[0016] Figure 6 This is a partial cross-sectional view of the clamping device of this application.

[0017] Figure 7 This is a diagram showing the assembly of one end of the titanium tube elbow and the clamping device for this application.

[0018] Figure 8 For this application Figure 7 The other end of the middle elbow titanium tube is assembled with the clamping device as shown.

[0019] Fig. 9 This is a rotation diagram of the clamping device for this application.

[0020] In the figure: 1a-horizontal strip hole; 6-elbow titanium tube; 7-straight tube. DETAILED DESCRIPTION

[0021] In order to enable ordinary technicians in the field to better understand the technical solution of the present application, the technical solution of the present application is further described below in conjunction with the accompanying drawings and embodiments.

[0022] See attached Figures 1 to 9 A clamping device for sawing the mouth of an elbow titanium tube is shown, and the clamping device includes an assembling mechanism for assembling and fastening the tube body from both ends of the tube body. The assembling mechanism connects and fastens the tube body from the two side ports of the tube body, and can ensure the stability of the tube body during subsequent marking and rotation, thereby solving the problem that when the tube body is manually turned over, the tube body turns over and shakes due to the tube body structure, which affects the marking and sawing operations.

[0023] On the basis of the above-mentioned stable connection of the tube body by the assembly mechanism, a marking mechanism with mutually perpendicular tangent references is formed on the outer surfaces of the ports on both sides of the tube body. The marking mechanism body has a vertical tangent reference, and the cutting lines are engraved on the circumference of the two ends of the tube body through the tangent reference, which can effectively ensure the accuracy of the cutting line engraving and solve the problem of bending of the engraving line and the influence on subsequent cutting caused by current manual engraving.

[0024] In order to facilitate the circumferential marking of the scoring line along the pipe mouth and the subsequent precise cutting, the clamping device also includes a rotating mechanism for rotating the pipe body circumferentially, which can stably rotate the pipe body in the assembled state circumferentially to facilitate the smooth circumferential marking of the scoring line and the subsequent circumferential sawing, thereby solving the current problem of inaccurate manual marking and cutting as a whole.

[0025] Specifically, Figure 5-6 As shown, the assembly mechanism includes a right-angle rod 1, at each end of which a telescopic rod 2 is vertically arranged, which is preferably a threaded rod structure, and at each end of each telescopic rod 2, a positioning ring plate 3 is arranged to be positioned and embedded in the inner wall of the tube body. Among them, the positioning ring plate 3 can be preferably a hard rubber plate, and a chamfer is arranged at its front end (not marked in the figure), and the two side ports of the tube body are sequentially sleeved on each positioning ring plate 3, and by rotating the telescopic rod 2, the positioning ring plate 3 is driven to extend into the tube body. Since the tube body is a continuous arc structure, after the positioning ring plate 3 is extended into the tube body, it will be blocked by the arc structure of the inner wall of the tube body, thereby realizing the contact and positioning of the positioning ring plate 3 and the inner wall of the tube body. At the same time, the outer diameter of the positioning ring plate 3 is preferably slightly larger than the inner diameter of the tube body, and the tube body is firmly assembled by squeezing the inner wall of the tube body on the positioning ring plate 3 and the ends are abutted.

[0026] Specifically, Figure 5-8As shown, the marking mechanism includes marking cylinders 4 vertically arranged at both ends of the right-angle rod 1 and can be sleeved on the outside of the pipe end, each of the marking cylinders 4 has a marking end surface 4a, and the telescopic rod 2 is inserted into the marking cylinder 4. Among them, the marking cylinder on one side is slidably arranged at the end of the right-angle rod 1, and the specific structure includes a horizontal bar hole arranged at the end of the right-angle rod 1, Figure 5 In the embodiment, the horizontal marking cylinder 4 is fastened in the horizontal bar hole by a screw connection, and its position can be adjusted and fastened by sliding the marking cylinder 4. At the same time, the bottom surface of the horizontal marking cylinder 4 is flatly contacted with the end of the right-angle rod 1 to ensure its perpendicularity with the vertical marking cylinder 4.

[0027] During operation, first extend one end of the tube body into the vertical marking cylinder, then drive the vertical telescopic rod 2 so that the positioning ring plate 3 at its end is embedded into the inner wall of the tube body and contacts and positions; then slide the horizontal marking cylinder 4 so that the tube mouth on the other side of the tube body extends into the marking cylinder 4, and drive the horizontal telescopic rod 2 so that the positioning ring plate 3 at its end contacts the inner wall of the tube body to achieve assembly and tightening of the tube body, and then, based on the marking end surface 4a of the horizontal and vertical marking cylinder 4 as a reference, circumferential marking is performed on the outer wall of the tube mouth at both ends of the tube body, so that a standard cutting line can be drawn. Then, according to the standard cutting line, the tube mouth structure with the ports on both sides being perpendicular can be sawed, and during the sawing operation, it can be performed in the state where the tube body is assembled to ensure the stability of the tube body during sawing.

[0028] During sawing, in order to avoid obstruction and interference of the sawing equipment by the marking cylinder 4, the marking cylinder 4 can be slid backward to disengage it from the pipe mouth, and sawing can be performed according to the engraved lines; at the same time, the marking cylinder 4 in the vertical direction can also be set as a sliding structure to avoid obstruction and interference of the sawing equipment.

[0029] To facilitate circumferential scoring and sawing operations, Fig. 9 As shown, the rotating mechanism is a base 5 arranged at the bottom side of the right-angle rod 1, and the right-angle rod 1 is rotatably connected to the base 5. By rotating the right-angle rod 1 relative to the base 5, the tube body is rotated circumferentially, thereby facilitating circumferential engraving of the engraving line and circumferential sawing, thereby improving the convenience of operation.

[0030] The principle of the present application is: when sawing the pipe mouth of the elbow titanium tube, firstly, one end of the tube body is inserted into the vertical marking cylinder 4, and then the vertical telescopic rod 2 is driven so that the positioning ring plate 3 at its end is embedded in the inner wall of the tube body and contacts and positions; then the marking cylinder 4 in the horizontal position is slid so that the pipe mouth on the other side of the tube body is inserted into the marking cylinder 4, and the telescopic rod 2 in the horizontal state is driven so that the positioning ring plate 3 at its end contacts the inner wall of the tube body to realize the assembly and tightening of the tube body, and then the right-angle rod 1 is rotated based on the marking end faces 4a of the horizontal and vertical marking cylinders 4 as the reference, and the outer walls of the pipe mouths at both ends of the tube body are circumferentially marked, and then the pipe mouth structure perpendicular to the ports on both sides can be sawed according to the standard cutting line, and the right-angle rod 1 can also be rotated during the sawing operation.

[0031] The above shows and describes the basic principles, main features and advantages of the present application. Without departing from the spirit and scope of the present application, the present application may have various changes and improvements, which fall within the scope of the present application to be protected.

Claims

1. A clamping device for sawing the elbow titanium tube, characterized in that: The clamping device includes an assembly mechanism for assembling and fastening the tube body from both ends of the tube body, a marking mechanism for forming mutually perpendicular tangent references on the outer surfaces of the ports on both sides of the tube body, and a rotating mechanism for rotating the tube body in the circumferential direction.

2. The clamping device according to claim 1, characterized in that: The assembly mechanism comprises a right-angle rod (1), at the ends of which telescopic rods (2) are vertically arranged, and at the ends of each telescopic rod (2) there is a positioning ring plate (3) which is positioned and embedded in the inner wall of the tube body.

3. The clamping device according to claim 2, characterized in that: The marking mechanism comprises marking cylinders (4) which are vertically arranged at both ends of the right-angle rod (1) and can be sleeved on the outside of the pipe end, each of the marking cylinders (4) has a marking end surface (4a), and the telescopic rod (2) is inserted into the marking cylinder (4).

4. The clamping device according to claim 3, characterized in that: The rotating mechanism is a base (5) arranged on the bottom side of the right-angle rod (1), and the right-angle rod (1) is rotatably connected to the base (5).

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