Positioning machining tool for knife tube buckle component of high-frequency surgical instrument

Abstract

The utility model discloses a high frequency surgical instrument knife tube clasping hand assembly positioning processing tool, which comprises an inclined fixed plate, a front positioning fixed plate and a knife tube supporting seat are arranged on the fixed plate, a guide through hole is arranged on the front positioning fixed plate, a guide block is arranged in the guide through hole, and the knife tube supporting seat is arranged on the guide block. One side of the guide block is provided with an elastic clamping head used for clamping the head of a knife tube buckle assembly to be welded, the other opposite side of the guide block is provided with a handle, hanging tables are arranged on the side edges of the opposite sides, hanging table penetrating holes are formed in the hanging tables, and one end of the equal-height sleeve penetrates through the hanging table penetrating holes to abut against sleeve fixing threaded holes in the front positioning fixing plate. The threaded end of the limiting screw penetrates through the equal-height sleeve to be screwed into the sleeve fixing threaded hole, and the diameter of the screw head of the limiting screw is larger than the inner diameter of the equal-height sleeve and the hole diameter of the hanging table penetrating hole. The workpiece to be machined is limited through the bearing and the elastic clamping head on the supporting base, stable rotation of the workpiece to be machined in the machining process can be achieved, and machining precision is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical instrument processing tooling, and particularly relates to a positioning processing tooling for a high-frequency surgical instrument knife tube handle assembly, which is applicable to the fixed processing of a high-frequency surgical instrument knife tube handle assembly. Background Art

[0002] At present, in the design and production process, most of the high-frequency surgical instrument knife tube handle assemblies use a fixed form of positioning to ensure the relevant dimensions of the components. Commonly, a positioning block for controlling the distance is made. It is necessary to manually insert the positioning block into the knife tube handle assembly for positioning, and then preliminarily weld several points to preliminarily fix the washer and the pull rod on the knife tube handle assembly to achieve the purpose of controlling the distance. Then, the positioning is removed and welding is carried out again. This operation method has low efficiency, may cause unstable processing of components, uncontrollable strength, and low reliability of components. Content of the Utility Model

[0003] The purpose of the utility model is to provide a positioning processing tooling for a high-frequency surgical instrument knife tube handle assembly in view of the above problems existing in the prior art. The above purpose of the utility model is achieved by the following technical means:

[0004] A positioning processing tooling for a high-frequency surgical instrument knife tube handle assembly includes an inclined fixed plate. A front positioning fixed plate and a knife tube support seat are arranged on the fixed plate. A guiding through hole is arranged on the front positioning fixed plate. A guiding block is arranged in the guiding through hole. An elastic chuck for clamping the head of the knife tube handle assembly to be welded is arranged on one side of the guiding block. A handle is arranged on the other opposite side, and a hanging platform is arranged at the side of the opposite side. A hanging platform through hole is arranged on the hanging platform. One end of an equal-height sleeve passes through the hanging platform through hole and abuts against a sleeve fixing threaded hole on the front positioning fixed plate. The threaded end of a limit screw passes through the equal-height sleeve and is screwed into the sleeve fixing threaded hole. The diameter of the screw head of the limit screw is larger than the inner diameter of the equal-height sleeve and the aperture of the hanging platform through hole.

[0005] The fixed plate is arranged on an upper bottom plate. The upper bottom plate is arranged on the inclined plane of a support plate. The support plate is arranged on a lower bottom plate.

[0006] A pair of bearings are arranged on the knife tube support seat. The knife tube of the knife tube handle assembly to be welded is carried between the pair of bearings.

[0007] The inner ring of the bearing abuts against one side of the bearing washer, and the other side of the bearing washer is aligned with one end of the support shaft mounting hole formed on the tool tube support seat. A fixing washer is arranged at the other end of the support shaft mounting hole. A butt joint threaded hole is formed on the end face of the opposite end of the bolt head of the bearing support bolt. One end of the bearing support bolt provided with the butt joint threaded hole sequentially passes through the inner ring of the bearing and the bearing washer and extends into the support shaft mounting hole. The threaded end of the locking bolt passes through the fixing washer and is screwed into the butt joint threaded hole, and the bolt part of the locking bolt is stuck on the fixing washer.

[0008] A tool tube placement groove is formed on the tool tube support seat.

[0009] There are multiple tool tube support seats.

[0010] The angle between the ramp surface of the support plate and the lower bottom plate is 30 degrees.

[0011] The guiding through hole is square, and the guiding block is square.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] By using the bearing and the elastic chuck on this tooling to limit the workpiece to be processed, stable rotation of the workpiece to be processed can be achieved during the processing, and the processing accuracy is high. After the welding is completed, pulling the handle on the front positioning insert can cause the elastic chuck to fall off, and the workpiece placed on the support component can be easily removed. This tooling is easy to operate and can improve work efficiency. Description of the Drawings

[0014] Figure 1 It is a structural schematic diagram of the workpiece to be processed;

[0015] Figure 2 It is an overall structural schematic diagram of the utility model;

[0016] Figure 3 It is a front view of the utility model clamping the workpiece to be processed;

[0017] Figure 4 It is a structural schematic diagram of the front positioning fixing plate;

[0018] Figure 5 It is a structural schematic diagram of the front positioning insert;

[0019] Figure 6 It is a structural schematic diagram of the assembled state of the front positioning insert and the front positioning fixing plate;

[0020] Figure 7 It is an exploded view of the front positioning insert and the front positioning fixing plate.

[0021] In the figure: 1 - lower base plate, 2 - support plate, 3 - upper base plate, 4 - fixing plate, 5 - front positioning fixing plate, 6 - guiding through hole, 7 - guiding block, 8 - cutter tube, 9 - elastic chuck, 10 - handle, 11 - hanging platform, 12 - equal-height sleeve, 13 - limit screw, 14 - cutter tube support seat, 15 - bearing, 16 - bearing support bolt, 17 - bearing washer, 18 - fixing washer, 19 - locking bolt, 20 - cutter tube placement groove, 21 - hanging platform perforation, 22 - sleeve fixing threaded hole. Detailed implementation mode

[0022] To facilitate the understanding and implementation of the present utility model by those of ordinary skill in the art, the present utility model will be further described in detail below in conjunction with embodiments. The embodiments described herein are only used to illustrate and explain the present utility model and are not intended to limit the present utility model.

[0023] Embodiment 1:

[0024] As Figure 1 , the workpiece to be processed is a high-frequency surgical instrument cutter tube handle assembly. The high-frequency surgical instrument cutter tube handle assembly includes a cutter tube 8 and a central round rod located inside the cutter tube 8 (the part between two circular gaskets is the handle, which has nothing to do with the implementation of the present utility model and is not shown in the figure). The central round rod can slide freely inside the round tube. A clamping hole is provided on the cutter tube 8 near the head end of the cutter tube 8. A snap ring passes through the clamping hole to fix the central round rod and the cutter tube 8 together; during welding, a circular retaining piece needs to be welded to the central round rod. The head end of the cutter tube 8 (the part between the snap ring and the front end pipe orifice of the cutter tube 8) is the area to be clamped.

[0025] As Figures 2 to 7, A positioning and processing tooling for the hand-held component of a high-frequency surgical instrument cutter tube, which includes an inclined fixed plate 4. A front positioning fixed plate 5 and a cutter tube support base 14 are arranged on the fixed plate 4. A guiding through hole 6 is arranged on the front positioning fixed plate 5. A front positioning insert is arranged on the front positioning fixed plate 5 and can slide along the opening direction of the guiding through hole 6. The front positioning insert includes a guiding block 7, an elastic chuck 9, a handle 10 and a hanging platform 11. The guiding block 7 is located in the guiding through hole 6 and is in sliding fit with the front positioning fixed plate 5. An elastic chuck 9 for clamping the head of the cutter tube 8 is arranged on one side of the guiding block 7. The chuck diameter of the elastic chuck 9 is adapted to the pipe diameter of the cutter tube 8. Since the chuck is elastic, when the cutter tube 8 is stressed, it can rotate by overcoming the clamping force of the chuck; A handle 10 is arranged on the other opposite side and a hanging platform 11 is arranged at the side of the opposite side. When the handle 10 pushes the guiding block 7 to move towards the cutter tube 8, when the hanging platform 11 is in close contact with the front positioning fixed plate 5, the hanging platform 11 prevents the guiding block 7 from continuing to slide towards the cutter tube 8, avoiding excessive sliding of the guiding block 7 beyond the usage requirements; A hanging platform through hole 21 is arranged on the hanging platform 11. One end of an equal-height sleeve 12 passes through the hanging platform through hole 21 and abuts against a sleeve fixing threaded hole 22 on the front positioning fixed plate 5. The threaded end of a limit screw 13 passes through the equal-height sleeve 12 and is screwed into the sleeve fixing threaded hole 22. The diameter of the screw head of the limit screw 13 is larger than the inner diameter of the equal-height sleeve 12 and the diameter of the hanging platform through hole 21. When the handle 10 pulls the guiding block 7 to move away from the cutter tube 8, when the hanging platform 11 is in close contact with the screw head of the limit screw 13, the limit screw 13 prevents the guiding block 7 from continuing to slide away from the cutter tube 8, avoiding excessive sliding of the guiding block 7 and disengaging from the front positioning fixed plate 5.

[0026] The fixed plate 4 is arranged on an upper base plate 3. The upper base plate 3 is arranged on the inclined plane of a support plate 2. The support plate 2 is arranged on a lower base plate 1; In this embodiment, the lower base plate 1 and the support plate 2 are fixed together by screws. The support plate 2, the upper base plate 3 and the fixed plate 4 are fixed together by screws. The lower base plate 1 is larger than the bottom of the support plate 2. The boundary part of the lower base plate 1 can be quickly clamped to the processing equipment. The included angle between the inclined plane of the support plate 2 and the lower base plate 1 is 30° to adapt to the equipment focal length.

[0027] A pair of bearings 15 are arranged on the cutter tube support base 14. The cutter tube 8 of the hand-held component of the cutter tube to be welded is carried between the pair of bearings 15, and the cutter tube 8 can rotate easily.

[0028] The inner ring of the bearing 15 abuts against one side of the bearing washer 17, and the other side of the bearing washer 17 is aligned with one end of the support shaft mounting hole formed on the tool tube support base 14. The fixing washer 18 is arranged at the other end of the support shaft mounting hole. The end face of the opposite end of the bolt head of the bearing support bolt 16 is provided with a docking threaded hole. One end of the bearing support bolt 16 provided with the docking threaded hole sequentially passes through the inner ring of the bearing 15 and the bearing washer 17 and extends into the support shaft mounting hole. The threaded end of the locking bolt 19 passes through the fixing washer 18 and is screwed into the docking threaded hole. The bolt portion of the locking bolt 19 is stuck on the fixing washer 18; the inner ring of the bearing 15 is fastened on the bearing support bolt 16 and abuts closely against the bolt portion of the bearing support bolt 16. The bearing washer 17 is in sliding fit with the bearing support bolt 16. Through the cooperation of the bearing support bolt 16 and the locking bolt 19, the bearing 15, the bearing washer 17 and the fixing washer 18 are fastened on the tool tube support base 14.

[0029] When the tool tube 8 is carried between a pair of bearings 15 on the tool tube support base 14, in order to prevent the bottom of the tool tube 8 from contacting the tool tube support base 14, a tool tube placement groove 20 is formed on the tool tube support base 14, and the tool tube 8 is placed in the tool tube placement groove 20.

[0030] There are multiple tool tube support bases 14 arranged in parallel along the body direction of the tool tube 8. In this embodiment, the number of tool tube support bases 14 is two. The arrangement of multiple tool tube support bases 14 can obtain a better support effect.

[0031] The guiding through hole 6 is square, and the guiding block 7 slidably matched with the front positioning fixing plate 5 is square. The square setting ensures that the elastic chuck 9 arranged at the end of the guiding block 7 will not rotate during movement, and the alignment is more accurate when the elastic chuck 9 clamps the head of the tool tube 8.

[0032] During use, the tool tube 8 is placed between a pair of bearings arranged on the tool tube support base 14. Due to the inclined setting of the fixing plate 4, the tool tube 8 is also in an inclined state. Under the action of gravity, the handle assembly of the tool tube 8 ( Figure 4 the circular gasket in it) will abut against the bolt portion of the bearing support bolt 16. After the tool tube 8 is placed stably, push the handle 10, and the elastic chuck 9 will clamp the front end of the tool tube 8. Then place the circular retaining plate on the central round rod inside the tool tube 8. Since the central round rod is in an inclined state, the circular retaining plate will abut against the elastic chuck 9 under its own gravity. After the circular retaining plate is placed stably, welding can be started. Since the chuck is elastic, when the tool tube 8 is stressed, it can rotate within the chuck, and the tool tube 8 is placed between two pairs of bearings 15 and will not shake during rotation, so stable welding can be achieved. After the processing is completed, pull the handle 10 backward to make the elastic chuck 9 disengage from the tool tube 8, and the workpiece to be processed can be easily removed.

[0033] It should be noted that the embodiments described in the present utility model are only illustrative examples of the spirit of the present utility model. Those skilled in the technical field to which the present utility model pertains may make various modifications or supplements to the described embodiments or use similar means for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A positioning and processing tooling for the buckle assembly of the knife tube of a high-frequency surgical instrument, including a fixed plate (4) arranged obliquely, characterized in that, The fixed plate (4) is provided with a front positioning fixed plate (5) and a tool tube support base (14). The front positioning fixed plate (5) is provided with a guiding through hole (6). The guiding block (7) is arranged in the guiding through hole (6). One side of the guiding block (7) is provided with an elastic chuck (9) for clamping the head of the tool tube buckle assembly to be welded. The other opposite side is provided with a handle (10), and a hanging platform (11) is arranged at the side of the opposite side. A hanging platform through hole (21) is arranged on the hanging platform (11). One end of the equal-height sleeve (12) passes through the hanging platform through hole (21) and abuts against the sleeve fixing threaded hole (22) on the front positioning fixed plate (5). The threaded end of the limit screw (13) passes through the equal-height sleeve (12) and is screwed into the sleeve fixing threaded hole (22). The diameter of the screw head of the limit screw (13) is larger than the inner diameter of the equal-height sleeve (12) and the diameter of the hanging platform through hole (21).

2. The positioning and machining tooling for the knife tube handle component of a high-frequency surgical instrument according to claim 1, wherein The fixed plate (4) is arranged on the upper bottom plate (3), and the upper bottom plate (3) is arranged on the inclined plane of the support plate (2). The support plate (2) is arranged on the lower bottom plate (1).

3. The positioning and processing tooling for the handle assembly of the knife tube of a high-frequency surgical instrument according to claim 1, characterized in that, A pair of bearings (15) are arranged on the tool tube support base (14), and the tool tube (8) of the tool tube buckle assembly to be welded is carried between the pair of bearings (15).

4. The positioning and machining tooling for the knife tube handle component of a high-frequency surgical instrument according to claim 3, characterized in that, The inner ring of the bearing (15) abuts against one side of the bearing washer (17), and the other side of the bearing washer (17) is aligned with one end of the support shaft mounting hole opened on the tool tube support base (14). A fixing washer (18) is arranged at the other end of the support shaft mounting hole. The end face of the opposite end of the bolt head of the bearing support bolt (16) is provided with a butt joint threaded hole. One end of the bearing support bolt (16) provided with the butt joint threaded hole passes through the inner ring of the bearing (15) and the bearing washer (17) in sequence and extends into the support shaft mounting hole. The threaded end of the locking bolt (19) passes through the fixing washer (18) and is screwed into the butt joint threaded hole. The bolt part of the locking bolt (19) is stuck on the fixing washer (18).

5. The positioning and processing tooling for the knife tube handle component of a high-frequency surgical instrument according to claim 4, characterized in that, A tool tube placement groove (20) is arranged on the tool tube support base (14).

6. The positioning and processing tooling for the knife tube clamping component of the high-frequency surgical instrument according to claim 1, characterized in that, There are multiple tool tube support bases (14).

7. The positioning and processing tooling for the handle assembly of the knife tube of a high-frequency surgical instrument according to claim 2, characterized in that, The angle between the inclined plane of the support plate (2) and the lower bottom plate (1) is 30 degrees.

8. The positioning and machining tooling for the knife tube clamping component of the high-frequency surgical instrument according to claim 1, characterized in that, The guiding through hole (6) is square, and the guiding block (7) is square.

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