Bent titanium tube cutting clamp

Abstract

The utility model relates to a bent titanium tube cutting clamp which comprises two bases, end position clamping pieces are arranged on the bases, a standard rod, a standard arm and an adjusting arm are connected to the bases respectively, a measuring component and a positioning chuck are installed on the standard rod, the positioning chuck is divided into a positioning part and a marking part, the positioning part is a flat plate body with a through hole, and the marking part is a marking part. The standard rod penetrates through the through hole, the marking part is located in a long-strip-shaped notch formed in the flat plate body, and the positioning column is composed of a sleeve and an inner column. According to the utility model, the base, the standard rod, the measuring part, the positioning chuck, the marking rod, the end position clamping piece and other parts are matched for use, so that the fixed bent titanium tube is marked, the bent titanium tube is cut, the design is reasonable, the structure is simple, and the accuracy and the efficiency can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of titanium tube processing, and particularly relates to a bent titanium tube cutting fixture. Background Art

[0002] Titanium tubes are lightweight, high-strength, and have excellent mechanical properties, making them widely used in heat exchange equipment. However, in practical applications, titanium tubes often need to be cut, especially when they are curved.

[0003] A titanium tube cutting tool, patent application number 2023221456729, is disclosed. It includes a base plate, an adjustment block, a motion block, a connecting block, a rotating wheel, an adjustment column, a motor, a cutter body, and a locking column. The tool enables multiple cutting positions on a fixed, curved titanium tube, effectively improving the device's applicability. It also provides stable fixation of the curved titanium tube during cutting, preventing vibration that could reduce cutting quality.

[0004] However, in the above scheme, a cutting position needs to be selected when cutting the bent titanium tube. The bent titanium tube is different from a straight tube. Directly measuring the required cutting position on the bent titanium tube is likely to result in poor accuracy and a more cumbersome measurement process. Utility Model Content

[0005] In order to make up for the above shortcomings, the present invention provides a bent titanium tube cutting fixture, which aims to improve the problem of different lengths during the cutting process of bent titanium tubes.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a bent titanium tube cutting fixture, comprising two bases, end clamps provided on the bases, a fixed limiting short rod on the end clamp, located in a vertically extending blind hole, a through-hole provided on the end clamp, a locking screw passing through the through-hole, the lower end of the locking screw being located in the threaded hole, the end clamps being fixed to the two ends of the bent titanium tube respectively, one of the bases being connected to a standard rod and a reference arm, the other base being connected to an adjustment arm, the standard rod being movably connected to the reference arm, and one end of the standard rod being flipped and moved with the point where the reference arm and the adjustment arm are cross-connected as a base point.

[0007] A measuring component is installed on the standard rod. The measuring component is a strip plate that is bent in a semicircle and has scale lines. The base point of the standard rod is the arc center of the strip plate. When the standard rod is flipped and moved, the angle between the standard rod and the reference arm can be measured.

[0008] A positioning chuck is also installed on the standard rod. The positioning chuck consists of two parts. The first part is the positioning part and the second part is the marking part. The moving trajectory of the positioning chuck is consistent with the bending part of the titanium tube.

[0009] The positioning part is a flat plate body with a through hole provided on the flat plate body. The standard rod passes through the through hole, so that the flat plate body can slide in the length direction of the standard rod.

[0010] The marking part is located in the long notch opened on the flat body. The marking part includes a short slidable sleeve passing through the long notch. A marking rod passes through the short sleeve. When the short sleeve slides along the length direction of the long notch, the lower end of the marking rod forms a mark on the titanium tube.

[0011] A counterweight block can be added to the upper end of the marking rod, and a tension return spring can be connected between the counterweight block and the upper end of the short sleeve.

[0012] The reference arm and the adjustment arm are respectively provided with a first waist-shaped strip opening and a second waist-shaped strip opening, and the positioning column passes through the two waist-shaped strip openings at the same time. The positioning column is a retractable column, which is divided into an outer sleeve and an inner column. The sleeve can be provided with a threaded section, and the locking disk is screwed on the threaded section on the sleeve. The position of the positioning column can be fixed by the locking disk.

[0013] The sleeve of the positioning column is connected to the standard rod through a collar. The movement of the positioning column can drive the standard rod to move. The inner wall of the sleeve has a protrusion and the surface of the inner column has an axially extending groove, which allows the sleeve to move axially but not rotate.

[0014] There is a tray under the ring, and a flat extension rod with a marking line is provided on the tray. At the same time, the tray supports the measuring component and the ring. When the marking line on the flat extension rod is aligned with the scale line on the measuring component strip, the angle can be intuitively seen.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model realizes marking of the fixed bent titanium tube through the coordinated use of the base, the standard rod, the measuring component, the positioning chuck, the marking rod, the end clamp and other components, thereby realizing cutting of the bent titanium tube. The focus is on reflecting the arc length through the angle, especially when performing equal cutting, when the angle is the same, the corresponding arc length is also equal. The design is reasonable, the structure is simple, and the accuracy and efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the positioning chuck structure of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the intersection of two positioning arms of the utility model;

[0020] Figure 4 This is a structural diagram of the base positioning part of the utility model;

[0021] Figure 5 This is a schematic diagram of the positioning column structure of the utility model;

[0022] Among them, 1-standard rod, 2-adjustment arm, 3-reference arm, 4-base, 5-flat plate, 6-long notch, 7-first waist-shaped strip, 8-second waist-shaped strip, 9-marking rod, 10-short sleeve, 11-through hole, 12-positioning column, 13-locking disk, 14-locking screw, 15-end clamp, 16-limiting short rod, 17-threaded hole, 18-blind hole, 19-titanium tube, 20-measuring component, 21-flat mouth, 22-ring, 23-sleeve, 24-inner column, 25-tray, 26-flat extension rod. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention. In the embodiments, the components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for which protection is claimed, but merely represents selected embodiments of the present application.

[0024] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," "front," "back," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended only to facilitate the description of this application and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of the application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected; it can be electrically connected; it can be hydraulic connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0026] Referring to Figures 1 to 5 As shown in the figure, a bending titanium tube 19 cutting clamp includes two positioning arms, which are a first positioning arm and a second positioning arm, the first positioning arm is connected with one end of the bending part of the titanium tube 19, and the second positioning arm is connected with the other end of the bending part of the titanium tube 19, at this time the free ends of the two positioning arms form a connection, and the position of the bending titanium tube is locked by the two positioning arms.

[0027] The first positioning arm and the second positioning arm are substantially the same in structure, and both include a base 4. The difference lies in that the first positioning arm further includes a fixed length reference arm 3, while the second positioning arm further includes an adjustable telescopic arm 2. The reference arm 3 and the adjustable arm 2 are cross-connected, and both are connected with the corresponding base 4. An end position clamping piece 15 is arranged on the base 4, which is in the shape of a long strip. A limiting short rod 16 is fixed on the end position clamping piece 15. At the same time, a vertical extending blind hole 18 and a threaded hole 17 are arranged on the base 4. The limiting short rod 16 is located in the blind hole 18. A through hole is also arranged on the end position clamping piece 15, and a locking screw 14 passes through the through hole. The lower end of the locking screw 14 is located in the threaded hole 17. When the locking screw 14 is screwed, the end position clamping piece 15 can be moved downward. Initially, the end position clamping piece 15 can be inserted into the end of the titanium tube 19, and then the locking screw 14 is screwed. In this way, the titanium tube 19 can be positioned by the cooperation of the base 4 and the end position clamping piece 15.

[0028] After the position of the bent titanium tube is locked, a standard rod 1 is arranged on the first positioning arm and movably connected with the first positioning arm. One end of the standard rod 1 can be slid to the intersection point of the two positioning arms, and then the standard rod 1 is flipped and moved with the intersection point as the base point. A positioning chuck is further arranged on the standard rod 1. When the standard rod 1 starts to flip and move, the positioning chuck also moves, but the movement track of the positioning chuck is consistent with the bent part of the titanium tube 19. The positioning chuck is composed of two parts. The first part is a positioning part, and the second part is a marking part. The positioning part is a flat plate body 5, and a through hole 11 is arranged on the flat plate body 5. The standard rod 1 passes through the through hole 11, so that the flat plate body 5 can slide in the length direction of the standard rod 1. The marking part is arranged on the positioning part, for example, a long slot 6 is arranged on the flat plate body 5 and parallel to the position of the standard rod 1. The marking part is located in the long slot 6. The marking part includes a short sleeve pipe 10 passing through the long slot 6. The short sleeve pipe 10 can slide in the long slot. A marking rod 9 passes through the short sleeve pipe 10. When the short sleeve pipe 10 slides along the length direction of the long slot 6, the marking rod 9 passes through the titanium tube 19, and the lower end of the marking rod 9 forms a mark on the titanium tube 19.

[0029] According to different marking modes of the marking rod 9, the connection mode of the marking rod 9 and the short sleeve pipe 10 is also different. For example, when the marking rod 9 is a marking pen, a counterweight should be arranged on the upper end of the marking rod 9.

[0030] When the lower end of the marking rod 9 is relatively sharp and a scratch needs to be formed on the titanium tube 19, a tension reset spring is connected between the counterweight and the upper end of the short sleeve pipe 10.

[0031] In addition, a measuring component 20 is arranged on the standard rod 1. When the cutting position needs to be selected, the measuring component 20 can be combined with the first positioning arm. Specifically, the measuring component 20 is a semicircular strip. Scale lines are arranged on the strip. The scale lines are arranged along the length direction of the strip. The intersection point of the first positioning arm and the second positioning arm is the center of the arc of the strip. When the standard rod 1 flips and moves, the strip also moves. The position where the strip intersects with the first positioning arm can display the included angle between the standard rod 1 and the first positioning arm. Therefore, when a titanium tube 19 needs to be cut into equal parts, the included angle between the first positioning arm and the second positioning arm can be measured first, and then the standard rod 1 is flipped to divide the angle into several equal parts. At this time, the positioning chuck slides on the bent part of the titanium tube 19 and forms several point positions. The titanium tube 19 can be accurately cut into several parts by cutting according to the point positions.

[0032] In order to facilitate the determination of the cross connection point between the first positioning arm and the second positioning arm, a flat opening 21 extending along the length direction is provided on the reference arm 3, and the flat opening 21 passes through the reference arm 3 horizontally, and one end of the adjustment arm 2 passes through the flat opening 21, and a first waist-shaped strip opening 7 and a second waist-shaped strip opening 8 are respectively provided on the reference arm 3 and the adjustment arm 2. The first waist-shaped strip opening 7 is connected to the flat opening 21, and the second waist-shaped strip opening 8 passes through the adjustment arm 2 vertically. A positioning column 12 passes through the first waist-shaped strip opening 7, and the cross connection point between the first positioning arm and the second positioning arm is located on the central axis of the positioning column 12. The lower end of the positioning column 12 passes through the second waist-shaped strip opening 8 at the same time. 12 can slide along the length direction of the first waist-shaped strip 7. A baffle located in the flat mouth 21 is fixed on the positioning column 12. There are two baffles and the adjusting arm is located between the two baffles. The positioning column 12 is a retractable column, which is divided into an outer sleeve 23 and an inner column 24. The baffle is fixed on the inner column 24, and the sleeve 23 can move up and down. A threaded section is provided on the sleeve 23 of the positioning column 12, and a locking disk 13 is screwed on the threaded section. The position of the positioning column 12 can be locked by the locking disk 13, and the standard rod 1 is connected to the sleeve 23 through a ring 22. The ring 22 is sleeved on the sleeve 23. The movement of the positioning column 12 can drive the standard rod 1 to move. A protrusion is provided on the inner wall of the sleeve 23, and an axially extending slide groove is provided on the surface of the inner column 24. The protrusion fits in the slide. At this time, the sleeve 23 can move axially but cannot rotate. At the same time, a tray 25 is provided on the sleeve 23. The tray 25 is located below the ring 22. The tray 25 supports the ring 22. A horizontal extension rod 26 is also provided on the tray 25. The horizontal extension rod 26 is parallel to the reference arm 3, and the horizontal extension rod 26 supports the slats. A marking line is provided on the horizontal extension rod 26. The marking line extends along the length direction of the horizontal extension rod 26. When the marking line is aligned with the scale line on the slats, the angle between the standard rod 1 and the reference arm 3 can be intuitively observed.

[0033] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based primarily on the scope of protection of the claims.

Claims

1. A bent titanium tube cutting fixture, characterized in that: include: Two bases (4) are connected to the two ends of the curved titanium tube respectively, one of the bases (4) is connected to a reference arm (3), the other base (4) is connected to an adjustment arm (2), the reference arm (3) is connected to a standard rod (1), one end of the standard rod (1) is movably connected to the reference arm (3) through a positioning column, the positioning column can be adjusted to be located at the arc center of the curved titanium tube, and the standard rod (1) can be flipped and moved with the positioning column as a base point; The standard rod (1) is provided with a measuring component (20), which is a strip plate bent in a semicircular shape and provided with scale lines, the arc center of the strip plate is located on the central axis of the positioning column, and the angle between the standard rod (1) and the reference arm (3) can be measured when the standard rod (1) is flipped and moved; A positioning chuck is installed on the standard rod (1), and when the standard rod (1) flips and moves, the positioning chuck moves on the bent titanium tube.

2. The bent titanium tube cutting fixture according to claim 1, characterized in that: The positioning chuck comprises a flat plate body (5) provided with a through hole (11), the standard rod (1) passes through the through hole (11), the flat plate body (5) can slide in the length direction of the standard rod (1), and a marking portion is provided on the flat plate body (5).

3. The bent titanium tube cutting fixture according to claim 2, characterized in that: The flat plate body (5) is provided with a long notch (6), which is arranged parallel to the standard rod. The marking part is installed in the long notch (6), and the marking part can slide in the long notch (6).

4. A bent titanium tube cutting fixture according to claim 2 or 3, characterized in that: The marking part comprises a short sleeve (10) and a marking rod (9) passing through the short sleeve (10). When the short sleeve (10) slides, the lower end of the marking rod (9) forms a mark on the titanium tube (19).

5. The bent titanium tube cutting fixture according to claim 4, characterized in that: The upper end of the marking rod (9) is butt-jointed with a counterweight block, and a tension reset spring is connected between the counterweight block and the upper end of the short sleeve (10).

6. The bent titanium tube cutting fixture according to claim 1, characterized in that: The reference arm (3) and the adjustment arm (2) are respectively provided with a first waist-shaped strip opening (7) and a second waist-shaped strip opening (8); the reference arm (3) is provided with a flat opening (21); the adjustment arm (2) passes through the flat opening (21); the first waist-shaped strip opening (7) is connected to the flat opening (21); and the positioning column (12) passes through both the first waist-shaped strip opening (7) and the second waist-shaped strip opening (8).

7. The bent titanium tube cutting fixture according to claim 6, characterized in that: The positioning column (12) comprises a sleeve (23) and an inner column (24). The sleeve (23) is sleeved on the inner column (24) and a locking disk (13) is screwed onto the sleeve (23). The locking disk (13) locks the position of the positioning column (12).

8. The bent titanium tube cutting fixture according to claim 7, characterized in that: The sleeve (23) is connected to the standard rod (1) through a collar (22). The collar (22) is sleeved on the sleeve (23), and the collar (22) is butted against the end of the standard rod (1).

9. The bent titanium tube cutting fixture according to claim 8, characterized in that: A tray (25) is provided below the collar (22), the tray (25) being fixed on the sleeve (23), and a flat extension rod (26) with a marking line being provided on the tray (25), the flat extension rod (26) supporting the measuring component (20) and the collar (22) at the same time.

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