Welding tool for snake bone of endoscope

Abstract

The utility model discloses an endoscope snake bone welding tool, which is used for welding a snake bone and inserting a butt joint pipe, and comprises a base, a gland and a positioning pin, a first positioning groove used for positioning and placing the snake bone and a second positioning groove used for positioning and placing the insertion butt joint pipe are formed in the base, a first positioning hole is formed in the end of the snake bone, and a second positioning hole is formed in the insertion butt joint pipe. An insertion butt joint pipe placed in the second positioning groove is used for being inserted into one end of a snake bone placed in the first positioning groove in a matched mode so that the first positioning hole can be aligned with the second positioning hole, and a retaining groove used for supporting the end of the positioning pin is further formed in the base. The positioning pin is used for being inserted into the first positioning hole and the second positioning hole. According to the utility model, the placing angles of the snake bone and the inserted butt-joint pipe can be limited and positioned, and the relative angle of the snake bone and the inserted butt-joint pipe can be ensured to be correct during welding, so that the qualified rate of welding can be improved.

Description

Technical Field

[0001] The utility model relates to an endoscope snake bone welding tool. Background Art

[0002] At present, the snake bone is a key component used in endoscopes. The snake bone can achieve flexible steering and precise control of the endoscope in complex environments through the connection and bending of multiple joints. An endoscope snake bone is disclosed in the Chinese patent with the announcement number CN201469245U. Among them, during the manufacturing process, the snake bone needs to be welded to the inserted butt joint tube so that the curved part and the inserted part of the endoscope can be connected together. The difficulty of welding is that the snake bone structure is relatively flexible and bends, which makes the direction and position of the snake bone uncontrollable. Therefore, it is necessary to fix the snake bone with a welding tool to keep the snake bone straight. In addition, since the wire guard tube inside the snake bone is directional, it is necessary to ensure that the relative angle between the snake bone and the inserted butt joint tube is correct during welding. After searching, it was found that the existing welding tooling is difficult to position the placement angle of the snake bone and the inserted butt joint tube, and thus it is difficult to ensure that the relative angle between the snake bone and the inserted butt joint tube is correct during welding, which affects the welding qualification rate. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the defects of the existing technology and provide an endoscope snake bone welding tool, which can limit the placement angle of the snake bone and the inserted butt tube, and can ensure that the relative angle between the snake bone and the inserted butt tube is correct during welding, thereby helping to improve the welding qualification rate.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: an endoscope snake bone welding tool, which is used for welding the snake bone and inserting the butt pipe, and includes a base, a pressure cover and a positioning pin;

[0005] The base is provided with a first positioning groove for positioning the snake bone and a second positioning groove for positioning the insertion butt joint tube. The end of the snake bone is provided with a first positioning hole, and the insertion butt joint tube is provided with a second positioning hole. The insertion butt joint tube placed in the second positioning groove is used to be plugged into one end of the snake bone placed in the first positioning groove so that the first positioning hole is aligned with the second positioning hole.

[0006] The base is further provided with a retaining groove for holding the end of the positioning pin, and the positioning pin is used to be inserted into the first positioning hole and the second positioning hole and placed in the retaining groove;

[0007] The pressure cover is used to be connected to the base to press and fix the snake bone in the first positioning groove, press and fix the inserted butt joint tube in the second positioning groove, and press and fix the positioning pin in the retaining groove.

[0008] Furthermore, a first welding through hole is provided on the base, and a second welding through hole is provided on the pressure cover. The first welding through hole and the second welding through hole are respectively aligned with the connection parts between the snake bone and the inserted butt pipe.

[0009] Furthermore, the base includes a first main body portion and a first flat plate portion connected to one end portion of the first main body portion, and the thickness of the first flat plate portion is thinner than that of the first main body portion;

[0010] The gland includes a second main body portion and a second flat plate portion connected to one end portion of the second main body portion, wherein the second flat plate portion is thinner than the second main body portion;

[0011] The first welding through hole is provided on the first flat plate portion, and the second welding through hole is provided on the second flat plate portion.

[0012] Furthermore, a first pressing groove adapted to the snake bone is provided on the lower end surface of the pressing cover, and the first pressing groove is used to support the snake bone and press the snake bone into the first positioning groove when the pressing cover is connected to the base.

[0013] Furthermore, a second pressing groove adapted to the insert butt joint tube is provided on the lower end surface of the pressure cover, and the second pressing groove is used to press the insert butt joint tube against the insert butt joint tube and press the insert butt joint tube into the second positioning groove when the pressure cover is connected to the base.

[0014] Furthermore, the retaining groove includes a left groove body for supporting one end of the positioning pin and a right groove body for supporting the other end of the positioning pin.

[0015] Furthermore, a left pressing groove and a right pressing groove adapted to the positioning pin are provided on the lower end surface of the pressure cover. The left pressing groove is used to press one end of the positioning pin and press one end of the positioning pin into the left groove body when the pressure cover is connected to the base, and the right pressing groove is used to press the other end of the positioning pin and press the other end of the positioning pin into the right groove body when the pressure cover is connected to the base.

[0016] Furthermore, the endoscope snake bone welding tool also includes a chuck connected to the base.

[0017] Furthermore, the gland is detachably locked and connected to the base by a first bolt and a second bolt;

[0018] The gland is provided with a first connection hole and a second connection hole, the first bolt is threadedly connected to the base after passing through the first connection hole, and the second bolt is threadedly connected to the base after passing through the second connection hole;

[0019] At least one of the first connecting hole and the second connecting hole is a waist-shaped hole.

[0020] Furthermore, a tip structure is connected to the snake bone, and an avoidance through hole is provided on the base for accommodating the tip structure when clamping the snake bone.

[0021] After adopting the above technical solution, first put the snake bone into the first positioning groove, put the inserted butt joint tube into the second positioning groove, make the inserted butt joint tube be inserted into the end of the snake bone and align the first positioning hole with the second positioning hole, then insert the positioning pin into the first positioning hole and the second positioning hole and place the positioning pin in the retaining groove, then connect the pressure cover to the base to press and fix the snake bone in the first positioning groove, press and fix the inserted butt joint tube in the second positioning groove and press and fix the positioning pin in the retaining groove, then the snake bone and the inserted butt joint tube can be welded by a laser welding machine. Among them, inserting the positioning pin into the first positioning hole and the second positioning hole can define the relative position relationship between the snake bone and the inserted butt joint tube, placing the positioning pin in the retaining groove can position the positioning pin, and then the placement angle of the snake bone and the inserted butt joint tube can be limited and positioned, thereby ensuring that the relative angle between the snake bone and the inserted butt joint tube is correct during welding, which is conducive to improving the qualified rate of welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of the endoscope snake bone welding tooling of the present invention when clamping the snake bone;

[0023] Figure 2 This is a schematic diagram of the structure of the endoscope snake bone welding tool of the present invention when the snake bone is loosened;

[0024] Figure 3 This is a structural diagram of the snake bone, the inserted butt tube and the positioning pin of the utility model;

[0025] Figure 4 This is a structural diagram of the base of the utility model;

[0026] Figure 5 It is a structural schematic diagram of the gland of the present invention. DETAILED DESCRIPTION

[0027] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0028] like Figures 1 to 5 As shown, an endoscope snake bone welding tool is used for welding the snake bone 1 and inserting the butt tube 2, which includes a base 3, a pressure cover 4 and a positioning pin 5;

[0029] The base 3 is provided with a first positioning groove 6 for positioning the snake bone 1 and a second positioning groove 7 for positioning the insertion butt joint tube 2. The end of the snake bone 1 is provided with a first positioning hole 8, and the insertion butt joint tube 2 is provided with a second positioning hole 9. The insertion butt joint tube 2 placed in the second positioning groove 7 is used to be plugged into one end of the snake bone 1 placed in the first positioning groove 6 so that the first positioning hole 8 is aligned with the second positioning hole 9;

[0030] The base 3 is further provided with a retaining groove for holding the end of the positioning pin 5. The positioning pin 5 is used to be inserted into the first positioning hole 8 and the second positioning hole 9 and placed in the retaining groove;

[0031] The pressure cover 4 is used to be connected to the base 3 to press and fix the snake bone 1 in the first positioning groove 6, press and fix the inserted butt joint 2 in the second positioning groove 7, and press and fix the positioning pin 5 in the retaining groove.

[0032] Specifically, first, the snake bone 1 is placed in the first positioning groove 6, and the insertion butt joint tube 2 is placed in the second positioning groove 7, so that the insertion butt joint tube 2 is inserted into the end of the snake bone 1 and the first positioning hole 8 is aligned with the second positioning hole 9, then the positioning pin 5 is inserted into the first positioning hole 8 and the second positioning hole 9 and the positioning pin 5 is placed in the retaining groove, and then the pressure cover 4 is connected to the base 3 to press and fix the snake bone 1 in the first positioning groove 6, the insertion butt joint tube 2 in the second positioning groove 7, and the positioning pin 5 in the retaining groove, and then the snake bone 1 and the insertion butt joint tube 2 can be welded by a laser welding machine. Among them, inserting the positioning pin 5 into the first positioning hole 8 and the second positioning hole 9 can define the relative position relationship between the snake bone 1 and the insertion butt joint tube 2, and placing the positioning pin 5 in the retaining groove can position the positioning pin 5, thereby limiting and positioning the placement angle of the snake bone 1 and the insertion butt joint tube 2, thereby ensuring that the relative angle between the snake bone 1 and the insertion butt joint tube 2 is correct during welding, which is conducive to improving the qualified rate of welding.

[0033] like Figures 1 to 5 As shown, the base 3 is provided with a first welding through-hole 10, and the gland 4 is provided with a second welding through-hole 11. The first welding through-hole 10 and the second welding through-hole 11 are respectively aligned with the connection between the snake bone 1 and the inserted butt joint 2. This allows the laser to pass through the first welding through-hole 10 and the second welding through-hole 11 to weld the connection between the snake bone 1 and the inserted butt joint 2.

[0034] like Figures 1 to 5As shown, the base 3 includes a first main body portion and a first flat plate portion 12 connected to one end portion of the first main body portion, and the thickness of the first flat plate portion 12 is thinner than that of the first main body portion;

[0035] The pressure cover 4 includes a second main body portion and a second flat plate portion 13 connected to one end portion of the second main body portion. The thickness of the second flat plate portion 13 is thinner than that of the second main body portion.

[0036] The first welding through hole 10 is provided on the first flat plate portion 12 , and the second welding through hole 11 is provided on the second flat plate portion 13 .

[0037] like Figures 1 to 5 As shown, a first pressing groove 14 adapted to the snake bone 1 is provided on the lower end surface of the pressure cover 4. The first pressing groove 14 is used to support the snake bone 1 and press the snake bone 1 into the first positioning groove 6 when the pressure cover 4 is connected to the base 3.

[0038] like Figures 1 to 5 As shown, a second pressing groove 15 adapted to the insert butt joint tube 2 is provided on the lower end surface of the pressure cover 4, and the second pressing groove 15 is used to support the insert butt joint tube 2 and press the insert butt joint tube 2 into the second positioning groove 7 when the pressure cover 4 is connected to the base 3.

[0039] like Figures 1 to 5 As shown, the retaining groove includes a left groove body 16 for supporting one end of the positioning pin 5 and a right groove body 17 for supporting the other end of the positioning pin 5 .

[0040] like Figures 1 to 5 As shown, a left pressure groove 18 and a right pressure groove 19 adapted to the locating pin 5 are provided on the lower end surface of the pressure cover 4, and the left pressure groove 18 is used to press one end of the locating pin 5 and press one end of the locating pin 5 into the left groove body 16 when the pressure cover 4 is connected to the base 3, and the right pressure groove 19 is used to press the other end of the locating pin 5 and press the other end of the locating pin 5 into the right groove body 17 when the pressure cover 4 is connected to the base 3; specifically, the first welding through hole 10 is provided between the left groove body 16 and the right groove body 17, and the second welding through hole 11 is provided between the left pressure groove 18 and the right pressure groove 19.

[0041] like Figure 1 、 2As shown in Figure 4, the endoscope snake bone welding tool can also include a chuck 20 connected to the base 3; specifically, the chuck 20 is used to be installed on the clamping flange in the laser welding machine, so that the entire endoscope snake bone welding tool is connected to the laser welding machine, and then the laser can pass through the first welding through hole 10 and the second welding through hole 11 to weld the connection part between the snake bone 1 and the inserted docking pipe 2.

[0042] like Figure 1 、 2 As shown in , 4, and 5, the gland 4 can be detachably locked and connected to the base 3 by a first bolt 21 and a second bolt 22;

[0043] The gland 4 is provided with a first connection hole 23 and a second connection hole 24. The first bolt 21 passes through the first connection hole 23 and is threadedly connected to the base 3. The second bolt 22 passes through the second connection hole 24 and is threadedly connected to the base 3.

[0044] At least one of the first connection hole 23 and the second connection hole 24 is a waist-shaped hole. In this embodiment, the first connection hole 23 is a round hole, and the second connection hole 24 is a waist-shaped hole. The waist-shaped hole enables the position of the pressure cover 4 to be adaptively adjusted relative to the base 3, thereby better pressing and fixing the snake bone 1, the insertion butt joint 2, and the positioning pin 5.

[0045] like Figure 1 、 2 As shown in Figures 4 and 5, the serpentine bone 1 is connected to a tip structure 25, and the base 3 is provided with an escape hole 26 for accommodating the tip structure 25 when clamping the serpentine bone 1. This prevents interference with the tip structure 25 on the serpentine bone 1 when clamping the serpentine bone 1. At the same time, the tip structure 25 can be observed through the escape hole 26 to check the clamping direction of the serpentine bone 1.

[0046] In summary, first, the snake bone 1 is placed in the first positioning groove 6, and the insertion butt joint tube 2 is placed in the second positioning groove 7, so that the insertion butt joint tube 2 is inserted into the end of the snake bone 1 and the first positioning hole 8 is aligned with the second positioning hole 9. Then, the positioning pin 5 is inserted into the first positioning hole 8 and the second positioning hole 9 and the positioning pin 5 is placed in the retaining groove. Then, the pressure cover 4 is connected to the base 3 to press and fix the snake bone 1 in the first positioning groove 6, the insertion butt joint tube 2 in the second positioning groove 7, and the positioning pin 5 in the retaining groove. Then, the snake bone 1 and the insertion butt joint tube 2 can be welded by a laser welding machine. Among them, inserting the positioning pin 5 into the first positioning hole 8 and the second positioning hole 9 can define the relative position relationship between the snake bone 1 and the insertion butt joint tube 2, and placing the positioning pin 5 in the retaining groove can position the positioning pin 5, thereby limiting and positioning the placement angle of the snake bone 1 and the insertion butt joint tube 2, thereby ensuring that the relative angle between the snake bone 1 and the insertion butt joint tube 2 is correct during welding, which is conducive to improving the qualified rate of welding.

[0047] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An endoscope snake bone welding tool, characterized in that: It is used for welding snake bones (1) and inserting butt joints (2), and comprises a base (3), a pressure cover (4) and a positioning pin (5); The base (3) is provided with a first positioning groove (6) for positioning the snake bone (1) and a second positioning groove (7) for positioning the insertion butt joint tube (2); the end of the snake bone (1) is provided with a first positioning hole (8); the insertion butt joint tube (2) is provided with a second positioning hole (9); the insertion butt joint tube (2) placed in the second positioning groove (7) is used to be plugged into one end of the snake bone (1) placed in the first positioning groove (6) so that the first positioning hole (8) is aligned with the second positioning hole (9); The base (3) is further provided with a retaining groove for holding the end of the positioning pin (5), and the positioning pin (5) is used to be inserted into the first positioning hole (8) and the second positioning hole (9) and placed in the retaining groove; The pressure cover (4) is used to be connected to the base (3) to press and fix the snake bone (1) in the first positioning groove (6), press and fix the insertion butt joint (2) in the second positioning groove (7), and press and fix the positioning pin (5) in the retaining groove.

2. The endoscope snake bone welding tool according to claim 1, characterized in that: The base (3) is provided with a first welding through hole (10), and the pressure cover (4) is provided with a second welding through hole (11), and the first welding through hole (10) and the second welding through hole (11) are respectively aligned with the connection portion between the snake bone (1) and the inserted butt pipe (2).

3. The endoscope snake bone welding tool according to claim 2, characterized in that: The base (3) comprises a first main body portion and a first flat plate portion (12) connected to one end portion of the first main body portion, wherein the thickness of the first flat plate portion (12) is thinner than that of the first main body portion; The pressure cover (4) comprises a second main body portion and a second flat plate portion (13) connected to one end portion of the second main body portion, wherein the thickness of the second flat plate portion (13) is thinner than that of the second main body portion; The first welding through hole (10) is provided on the first flat plate portion (12), and the second welding through hole (11) is provided on the second flat plate portion (13).

4. The endoscope snake bone welding tool according to claim 1, characterized in that: A first pressing groove (14) adapted to the snake bone (1) is provided on the lower end surface of the pressing cover (4). The first pressing groove (14) is used to press against the snake bone (1) and press the snake bone (1) into the first positioning groove (6) when the pressing cover (4) is connected to the base (3).

5. The endoscope snake bone welding tool according to claim 1, characterized in that: A second pressing groove (15) adapted to the insert butt joint tube (2) is provided on the lower end surface of the pressing cover (4), and the second pressing groove (15) is used to press against the insert butt joint tube (2) and press the insert butt joint tube (2) into the second positioning groove (7) when the pressing cover (4) is connected to the base (3).

6. The endoscope snake bone welding tool according to claim 1, characterized in that: The retaining groove comprises a left groove body (16) for supporting one end of the positioning pin (5) and a right groove body (17) for supporting the other end of the positioning pin (5).

7. The endoscope snake bone welding tool according to claim 6, characterized in that: The lower end surface of the pressure cover (4) is provided with a left pressure groove (18) and a right pressure groove (19) adapted to the positioning pin (5). The left pressure groove (18) is used to abut against one end of the positioning pin (5) and press one end of the positioning pin (5) into the left groove body (16) when the pressure cover (4) is connected to the base (3). The right pressure groove (19) is used to abut against the other end of the positioning pin (5) and press the other end of the positioning pin (5) into the right groove body (17) when the pressure cover (4) is connected to the base (3).

8. The endoscope snake bone welding tool according to claim 1, characterized in that: It also includes a clamp (20) connected to the base (3).

9. The endoscope snake bone welding tool according to claim 1, characterized in that: The gland (4) is detachably locked and connected to the base (3) via a first bolt (21) and a second bolt (22); The gland (4) is provided with a first connection hole (23) and a second connection hole (24); the first bolt (21) passes through the first connection hole (23) and is threadedly connected to the base (3); the second bolt (22) passes through the second connection hole (24) and is threadedly connected to the base (3); At least one of the first connecting hole (23) and the second connecting hole (24) is a waist-shaped hole.

10. The endoscope snake bone welding tool according to claim 1, characterized in that: The snake bone (1) is connected to a tip structure (25), and the base (3) is provided with an avoidance through hole (26) for accommodating the tip structure (25) when clamping the snake bone (1).

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