Machining and welding device for endoscope snake bone

Abstract

The utility model discloses a machining and welding device for an endoscope snake bone. The machining and welding device comprises a supporting rod and a positioning mechanism. Wherein the endoscope snake bone comprises a snake bone main body and an insertion tube, the snake bone main body is internally provided with a row of left wire penetrating parts which are sequentially arranged at intervals in the axial direction and a row of right wire penetrating parts which are sequentially arranged at intervals in the axial direction, the left wire penetrating parts and the right wire penetrating parts both protrude inwards in the radial direction, and the supporting rod comprises a rod main body; the rod main body is used for enabling the snake bone main body and the insertion pipe to be connected to the rod main body in a sleeving mode, a left groove extending in the axial direction is formed in the left side end of the rod main body, and a right groove extending in the axial direction is formed in the right side end of the rod main body. According to the utility model, the snake bone main body can be kept straight, so that a traction wire can conveniently penetrate into the snake bone main body, the snake bone main body can be positioned and fixed, so that the snake bone main body and the insertion tube can be conveniently welded, the production and processing difficulty of the endoscope snake bone can be reduced, and the production efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to a processing and welding device for endoscope snake bones. Background Art

[0002] At present, an endoscopic snake bone is a device similar to the spinal structure of a snake. It is one of the key components of an endoscope and is mainly used to make the endoscope bend flexibly. The specific structure of an endoscopic snake bone is disclosed in the Chinese patent with the announcement number CN219250104U.

[0003] The endoscope snake includes a main body, an insertion tube, and a traction wire. The traction wire needs to be inserted into the main body and welded to it, and the insertion tube needs to be welded to the main body. However, in actual production, it was found that the main body is too flexible and prone to bending, which makes it very difficult to insert the traction wire into the main body. In addition, the flexibility of the main body makes it difficult to position and fix the main body during welding, which makes it difficult to weld the main body to the insertion tube. All of these factors increase the difficulty of manufacturing and processing the endoscope snake, resulting in low production efficiency. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the defects of the existing technology and provide a processing and welding device for endoscope snake bones, which can keep the snake bone body straight to facilitate the insertion of the traction wire into the snake bone body, and can also position and fix the snake bone body to facilitate the welding of the snake bone body and the insertion tube, thereby reducing the production and processing difficulty of the endoscope snake bone and helping to improve production efficiency.

[0005] In order to solve the above technical problems, the technical solution of the utility model is: a processing and welding device for endoscope snake bones, comprising a support rod and a positioning mechanism;

[0006] The endoscope snake bone includes a snake bone body and an insertion tube. The snake bone body is provided with a row of left threading parts and a row of right threading parts arranged in sequence along the axial direction. Both the left threading parts and the right threading parts are radially inwardly protruding.

[0007] The support rod includes a rod body, and the rod body is used for the snake bone body and the insertion tube to be sleeved on the rod body;

[0008] The left end of the rod body is provided with a left groove extending in the axial direction, and the right end of the rod body is provided with a right groove extending in the axial direction, the left groove is used for the left threading part to be clamped when the snake bone body is sleeved on the rod body, and the right groove is used for the right threading part to be clamped when the snake bone body is sleeved on the rod body;

[0009] The positioning mechanism is used to position the snake bone body on the rod body when the snake bone body is sleeved on the rod body, and is used to position the insertion tube on the rod body when the insertion tube is sleeved on the rod body.

[0010] Further providing a specific structure of the positioning mechanism, the positioning mechanism includes a positioning pin and a reference hole provided on the rod body;

[0011] The snake bone body is provided with a first positioning hole, and the insertion tube is provided with a second positioning hole;

[0012] The positioning pin is used to pass through at least one of the first positioning hole and the second positioning hole and then be inserted into the reference hole.

[0013] A specific structure of the positioning pin is further provided. The positioning pin includes a cap portion and a rod portion connected to the cap portion and used for inserting into the reference hole.

[0014] Furthermore, the cross-sections of the left groove and the right groove are both crescent-shaped.

[0015] Furthermore, the left groove and the right groove both penetrate the rod body in the axial direction.

[0016] Furthermore, the support rod also includes a clamping head connected to the rod body.

[0017] Furthermore, a limiting groove is provided in the clamping head;

[0018] The end of the rod body is provided with a limiting portion;

[0019] The limiting portion is clamped in the limiting groove to connect the rod body with the clamping head.

[0020] Furthermore, the limiting groove includes a vertical groove body and a transverse groove body cross-intersecting the vertical groove body, and the limiting portion is used to be clamped in any one of the vertical groove body and the transverse groove body.

[0021] After adopting the above technical solution, the endoscope snake bone includes the snake bone body, the insertion tube, two traction wires, two welding tubes and two protective tubes. During the production process, the snake bone body is first put on the rod body in the support rod. The left threading part on the snake bone body will be stuck in the left groove, and the right threading part on the snake bone body will be stuck in the right groove. The snake bone body is positioned on the rod body by the positioning mechanism. At this time, the rod body can keep the snake bone body straight to prevent the snake bone body from bending. Then one of the traction wires is inserted into the left threading part of the snake bone body along the left groove, and the other traction wire is inserted into the right threading part of the snake bone body along the right groove, thereby greatly facilitating the insertion of the traction wire into the snake bone body. In addition, the left groove and the right groove can also play a guiding and restraining role on the two traction wires, thereby preventing the two traction wires from getting entangled at the tail end. After the traction wires are inserted into the serpentine body, one welding tube is placed over the front end of one traction wire, and the other welding tube is placed over the front end of the other traction wire, and the welding tubes are assembled into the serpentine body. The support rod is then installed in a laser welding machine to weld the traction wires, welding tubes, and inner wall of the serpentine body together. The welded serpentine body is then removed from the rod body. The insertion tube is then placed over the rod body and positioned on the rod body using the positioning mechanism to prevent rotation and displacement. One of the protective tubes is then inserted into the insertion tube along the left groove, and the other protective tube is inserted into the insertion tube along the right groove. The protective tubes are then laser welded to the insertion tube. After welding is complete, the insertion tube is removed from the rod body. The two traction wires welded to the serpentine body are then inserted into the two protective tubes welded to the insertion tube, respectively. The serpentine body welded with the traction wires and the insertion tube welded with the protective tubes are respectively placed on the rod body, and a portion of the insertion tube is inserted into one end of the serpentine body. The serpentine body and the insertion tube are then positioned on the rod body by the positioning mechanism. At this point, the serpentine body and the insertion tube are both fixed, thereby preventing the serpentine body from bending and rotating. The serpentine body and the insertion tube are then welded together by laser welding, thereby completing the production and processing of the endoscope serpentine, greatly facilitating the welding of the serpentine body and the insertion tube. Therefore, the use of the processing and welding device for the endoscope serpentine according to the embodiment of the present application can reduce the difficulty of the production and processing of the endoscope serpentine, which is conducive to improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an exploded view of the assembly of the endoscope snake bone of the utility model;

[0023] Figure 2 This is a schematic structural diagram of the snake bone main body of the present invention;

[0024] Figure 3This is an exploded view of the assembly of the endoscope snake bone and the processing and welding device for the endoscope snake bone of the utility model;

[0025] Figure 4 for Figure 3 Partial detail of point A in the middle;

[0026] Figure 5 for Figure 3 Partial detail of point B in the middle;

[0027] Figure 6 It is a side view of the rod body of the utility model;

[0028] Figure 7 This is a schematic structural diagram of the snake bone body being sleeved on the rod body of the utility model;

[0029] Figure 8 for Figure 7 Partial detail of point C in the middle;

[0030] Figure 9 This is a schematic structural diagram of the insertion tube of the utility model being sleeved on the rod body;

[0031] Figure 10 for Figure 9 Partial detail of point D in the middle;

[0032] Figure 11 This is a schematic diagram of the structure of the present invention in which the snake bone body and the insertion tube are both sleeved on the rod body;

[0033] Figure 12 for Figure 11 Partial detail of point E in the middle. DETAILED DESCRIPTION

[0034] 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.

[0035] like Figures 1 to 12 As shown, a processing and welding device for endoscope snake bones includes a support rod and a positioning mechanism;

[0036] The endoscope snake bone includes a snake bone body 1 and an insertion tube 2. The snake bone body 1 is provided with a row of left wire threading parts 3 and a row of right wire threading parts 4 arranged in sequence along the axial direction. The left wire threading parts 3 and the right wire threading parts 4 are both radially inwardly protruding.

[0037] The support rod includes a rod body 5, and the rod body 5 is used for the snake bone body 1 and the insertion tube 2 to be sleeved on the rod body 5;

[0038] The left end of the rod body 5 is provided with a left groove 6 extending in the axial direction, and the right end of the rod body 5 is provided with a right groove 7 extending in the axial direction. The left groove 6 is used for the left threading part 3 to be clamped when the snake bone body 1 is sleeved on the rod body 5, and the right groove 7 is used for the right threading part 4 to be clamped when the snake bone body 1 is sleeved on the rod body 5;

[0039] The positioning mechanism is used to position the snake bone body 1 on the rod body 5 when the snake bone body 1 is sleeved on the rod body 5 , and is used to position the insertion tube 2 on the rod body 5 when the insertion tube 2 is sleeved on the rod body 5 .

[0040] Specifically, the endoscope snake bone includes the snake bone body 1, the insertion tube 2, two traction wires 8, two welding tubes 9 and two protective tubes 10. During the production process, the snake bone body 1 is first put on the rod body 5 in the support rod. The left threading part 3 on the snake bone body 1 will be stuck in the left groove 6, and the right threading part 4 on the snake bone body 1 will be stuck in the right groove 7. The snake bone body 1 is positioned on the rod body 5 by the positioning mechanism. At this time, the rod body 5 can keep the snake bone body 1 straight and prevent the snake bone body 1 from bending. Then, one of the traction wires 8 is inserted into the left threading part 3 in the snake bone body 1 along the left groove 6, and the other traction wire 8 is inserted into the right threading part 4 in the snake bone body 1 along the right groove 7, thereby greatly facilitating the insertion of the traction wire 8 into the snake bone body 1. In addition, the left groove 6 and the right groove 7 can also play a guiding and restraining role for the two traction wires 8, thereby preventing the two traction wires 8 from getting entangled at the tail end. After the traction wire 8 is inserted into the snake bone body 1, one of the welding tubes 9 is put on the front end of one of the traction wires 8, and the other welding tube 9 is put on the front end of the other traction wire 8, and the welding tube 9 is assembled into the snake bone body 1. The support rod is then installed in a laser welding machine to weld the traction wire 8, the welding tube 9 and the inner wall of the snake bone body 1, and then the welded snake bone body 1 is removed from the rod body 5. The insertion tube 2 is then put on the rod body 5, and the insertion tube 2 is positioned on the rod body 5 by the positioning mechanism to prevent the insertion tube 2 from rotating and shifting. Then, one of the protective tubes 10 is inserted into the insertion tube 2 along the left groove 6, and the other protective tube 10 is inserted into the insertion tube 2 along the right groove 7. The protective tube 10 and the insertion tube 2 are then welded together by laser welding. After welding, the insertion tube 2 is removed from the rod body 5. Then, the two traction wires 8 welded on the snake bone body 1 are respectively inserted into the two protective tubes 10 welded on the insertion tube 2, and the snake bone body 1 welded with the traction wires 8 and the insertion tube 2 welded with the protective tubes 10 are respectively put on the rod body 5, and a part of the insertion tube 2 is inserted into one end of the snake bone body 1. The snake bone body 1 and the insertion tube 2 are both positioned on the rod body 5 by the positioning mechanism. At this time, the snake bone body 1 and the insertion tube 2 are both fixed, thereby preventing the snake bone body 1 from bending and rotating. Then, the snake bone body 1 and the insertion tube 2 are welded together by laser welding, thereby completing the production and processing of the endoscope snake bone, greatly facilitating the welding of the snake bone body 1 and the insertion tube 2. Therefore, the use of the processing and welding device for the endoscope snake bone of the embodiment of the present application can reduce the difficulty of the production and processing of the endoscope snake bone, which is conducive to improving production efficiency. Specifically, during laser welding, the laser is hit on the metal surface to locally heat the metal so that the surface metal and the inner metal are clad together.

[0041] like Figure 1 、 3, 4, 7 to 12, the positioning mechanism may include a positioning pin 11 and a reference hole 12 provided on the rod body 5;

[0042] The snake bone body 1 is provided with a first positioning hole 13, and the insertion tube 2 is provided with a second positioning hole 14;

[0043] The positioning pin 11 is used to pass through at least one of the first positioning hole 13 and the second positioning hole 14 and then be inserted into the reference hole 12. Specifically, when only the serpentine body 1 is sleeved on the rod body 5, the positioning pin 11 passes through the first positioning hole 13 and then is inserted into the reference hole 12, thereby positioning the serpentine body 1 on the rod body 5. When only the insertion tube 2 is sleeved on the rod body 5, the positioning pin 11 passes through the second positioning hole 14 and then is inserted into the reference hole 12, thereby positioning the insertion tube 2 on the rod body 5. When the serpentine body 1 and the insertion tube 2 are all sleeved on the rod body 5, a portion of the insertion tube 2 is inserted into one end of the serpentine body 1 and the first positioning hole 13 is aligned with the second positioning hole 14. Then, the positioning pin 11 passes through the first positioning hole 13 and the second positioning hole 14 and then is inserted into the reference hole 12, thereby positioning the serpentine body 1 and the insertion tube 2 on the rod body 5.

[0044] like Figure 4 、 10 As shown in FIG. 12 , the positioning pin 11 may include a cap portion 15 and a rod portion 16 connected to the cap portion 15 and used for inserting into the reference hole 12 ; specifically, the cap portion 15 enables easier gripping.

[0045] like Figure 6 As shown, the cross-sections of the left groove 6 and the right groove 7 are both crescent-shaped, and the left groove 6 and the right groove 7 both penetrate the rod body 5 along the axial direction.

[0046] like Figure 3 、 5 As shown in Figures 7, 9 and 11, the support rod may further include a clamping head 17 connected to the rod body 5. The clamping head 17 is used to be clamped by a chuck in a laser welding machine.

[0047] like Figure 3 、 5 As shown, the clamping head 17 is provided with a limiting groove 18;

[0048] The end of the rod body 5 is provided with a limiting portion 19;

[0049] The limiting portion 19 is engaged in the limiting groove 18 to connect the rod body 5 with the clamping head 17 .

[0050] like Figure 3 、 5 As shown, the limiting groove 18 comprises a vertical groove and a transverse groove intersecting the vertical groove. The limiting portion 19 is configured to engage with either the vertical groove or the transverse groove, thereby connecting the rod body 5 to the clamping head 17. In this embodiment, the cross-shaped limiting groove 18 facilitates limiting the rotation of the limiting portion 19, thereby limiting the rotation of the rod body 5, thereby facilitating clamping on a laser welding machine for welding.

[0051] In summary, the endoscope snake bone includes the snake bone body 1, the insertion tube 2, two traction wires 8, two welding tubes 9 and two protective tubes 10. During the production process, the snake bone body 1 is first put on the rod body 5 in the support rod. The left threading part 3 on the snake bone body 1 will be stuck in the left groove 6, and the right threading part 4 on the snake bone body 1 will be stuck in the right groove 7. The snake bone body 1 is positioned on the rod body 5 by the positioning mechanism. At this time, the rod body 5 can keep the snake bone body 1 straight to prevent the snake bone body 1 from bending. Then, one of the traction wires 8 is inserted into the left threading part 3 in the snake bone body 1 along the left groove 6, and the other traction wire 8 is inserted into the right threading part 4 in the snake bone body 1 along the right groove 7, thereby greatly facilitating the insertion of the traction wire 8 into the snake bone body 1. In addition, the left groove 6 and the right groove 7 can also play a guiding and restraining role on the two traction wires 8, thereby preventing the two traction wires 8 from being entangled at the tail end. After the traction wire 8 is inserted into the snake bone body 1, one of the welding tubes 9 is put on the front end of one of the traction wires 8, and the other welding tube 9 is put on the front end of the other traction wire 8, and the welding tube 9 is assembled into the snake bone body 1. The support rod is then installed in a laser welding machine to weld the traction wire 8, the welding tube 9 and the inner wall of the snake bone body 1, and then the welded snake bone body 1 is removed from the rod body 5. The insertion tube 2 is then put on the rod body 5, and the insertion tube 2 is positioned on the rod body 5 by the positioning mechanism to prevent the insertion tube 2 from rotating and shifting. Then, one of the protective tubes 10 is inserted into the insertion tube 2 along the left groove 6, and the other protective tube 10 is inserted into the insertion tube 2 along the right groove 7. The protective tube 10 and the insertion tube 2 are then welded together by laser welding. After welding, the insertion tube 2 is removed from the rod body 5. Then, the two traction wires 8 welded on the snake bone body 1 are respectively inserted into the two protective tubes 10 welded on the insertion tube 2, and the snake bone body 1 welded with the traction wires 8 and the insertion tube 2 welded with the protective tubes 10 are respectively put on the rod body 5, and a part of the insertion tube 2 is inserted into one end of the snake bone body 1. The snake bone body 1 and the insertion tube 2 are both positioned on the rod body 5 by the positioning mechanism. At this time, the snake bone body 1 and the insertion tube 2 are both fixed, thereby preventing the snake bone body 1 from bending and rotating. Then, the snake bone body 1 and the insertion tube 2 are welded together by laser welding, thereby completing the production and processing of the endoscope snake bone, greatly facilitating the welding of the snake bone body 1 and the insertion tube 2. Therefore, the use of the processing and welding device for the endoscope snake bone according to the embodiment of the present application can reduce the difficulty of the production and processing of the endoscope snake bone, which is conducive to improving production efficiency.

[0052] 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. A processing and welding device for endoscope snake bones, characterized in that: including a support rod and a positioning mechanism; The endoscope snake bone comprises a snake bone body (1) and an insertion tube (2), wherein the snake bone body (1) is provided with a row of left threading parts (3) arranged in sequence along the axial direction and a row of right threading parts (4) arranged in sequence along the axial direction, wherein both the left threading parts (3) and the right threading parts (4) are radially inwardly protruding; The support rod comprises a rod body (5), and the rod body (5) is used for the snake bone body (1) and the insertion tube (2) to be sleeved on the rod body (5); The left end of the rod body (5) is provided with a left groove (6) extending in the axial direction, and the right end of the rod body (5) is provided with a right groove (7) extending in the axial direction. The left groove (6) is used for the left threading part (3) to be clamped in when the snake bone body (1) is sleeved on the rod body (5), and the right groove (7) is used for the right threading part (4) to be clamped in when the snake bone body (1) is sleeved on the rod body (5); The positioning mechanism is used to position the snake bone body (1) on the rod body (5) when the snake bone body (1) is sleeved on the rod body (5), and is used to position the insertion tube (2) on the rod body (5) when the insertion tube (2) is sleeved on the rod body (5).

2. The processing and welding device for endoscope snake bones according to claim 1, characterized in that: The positioning mechanism comprises a positioning pin (11) and a reference hole (12) provided on the rod body (5); The snake bone body (1) is provided with a first positioning hole (13), and the insertion tube (2) is provided with a second positioning hole (14); The positioning pin (11) is used to pass through at least one of the first positioning hole (13) and the second positioning hole (14) and then be inserted into the reference hole (12).

3. The processing and welding device for endoscope snake bones according to claim 2, characterized in that: The positioning pin (11) comprises a cap portion (15) and a rod portion (16) connected to the cap portion (15) and used for inserting into the reference hole (12).

4. The processing and welding device for endoscope snake bones according to claim 1, characterized in that: The cross-sections of the left groove (6) and the right groove (7) are both crescent-shaped.

5. The processing and welding device for endoscope snake bones according to claim 1, characterized in that: The left groove (6) and the right groove (7) both penetrate the rod body (5) in the axial direction.

6. The processing and welding device for endoscope snake bones according to claim 1, characterized in that: The support rod further comprises a clamping head (17) connected to the rod body (5).

7. The processing and welding device for endoscope snake bones according to claim 6, characterized in that: The clamping head (17) is provided with a limiting groove (18); The end of the rod body (5) is provided with a limiting portion (19); The limiting portion (19) is engaged in the limiting groove (18) to connect the rod body (5) to the clamping head (17).

8. The processing and welding device for endoscope snake bones according to claim 7, characterized in that: The limiting groove (18) comprises a vertical groove body and a transverse groove body cross-intersecting the vertical groove body, and the limiting portion (19) is used for being clamped in any one of the vertical groove body and the transverse groove body.

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