Welding tool for integral bipolar electrotome

Abstract

The utility model relates to an integral welding tool for a bipolar electrotome. The integral welding tool comprises a positioning base; the positioning block is connected with a clamping block, the positioning block is provided with a bipolar electrotome, and the clamping block is used for locking the bipolar electrotome to the positioning block; the jaw lower tool block is arranged on the positioning base, the jaw lower tool block and the positioning block are located on the same straight line, the jaw lower tool block is connected with a jaw upper tool block, a jaw of the bipolar electrotome is arranged on the jaw lower tool block, and the jaw upper tool block is used for pressing the jaw of the bipolar electrotome on the jaw lower tool block. According to the integral welding tool for the bipolar electrotome, when a workpiece is assembled, a high-precision auxiliary assembly block with strong magnetic force is needed, and the assembled workpiece is quickly adsorbed and positioned. Secondly, an integrated tool system is designed, and multiple procedures are executed on one work station. And finally, the rod positioning tool is modularized and adjustable, so that the assembly requirements of products with different lengths and models are met on the premise of ensuring the assembly rigidity.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a bipolar electric knife integral welding tool. Background Art

[0002] A bipolar electrosurgical unit is an electrosurgical device that cuts tissue by generating heat through an electric current. Because the current in a bipolar electrosurgical unit flows only between two electrodes, it causes less damage to surrounding tissue.

[0003] Electric scalpels were first used in surgical procedures in the early 20th century, but they presented numerous challenges, including damage to surrounding tissue and arcing caused by discharge from the electrodes. The invention of bipolar electrosurgery in the early 1950s addressed some of the challenges of monopolar electrosurgery, such as reducing damage to surrounding tissue and the risk of arcing.

[0004] The bipolar electrosurgical unit is a significant innovation in surgical tools. It typically consists of a pair of upper and lower jaws that apply a clamping force to tissues, such as blood vessels and muscle tissue. By improving the flow of electrical current, the bipolar electrosurgical unit reduces surgical risks and patient injury, while improving surgical precision and safety. With technological advancements, the bipolar electrosurgical unit is increasingly used in clinical practice and has become an indispensable tool in the modern operating room.

[0005] However, the difficulty in welding the entire mechanism of a bipolar electrosurgical unit lies in the high requirements for assembly and appearance, as well as the inherent lack of positioning in the design, which requires tooling. Furthermore, the mechanism requires multiple welding steps and pin assembly, making complex assembly difficult and requiring a high level of space. Furthermore, the bipolar electrosurgical unit is a long component with varying lengths, making it difficult to clamp and prone to deformation. Utility Model Content

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problems of inaccurate welding points and low assembly precision caused by bipolar electric knife welding in the prior art, which results in an increase in the defective product rate and seriously affects the quality of the product.

[0007] To address the above-mentioned technical problems, the present invention provides a bipolar electrosurgical scalpel welding fixture, comprising: a positioning base; a plurality of positioning blocks disposed on the positioning base, the positioning blocks being connected to a clamping block, the positioning blocks being provided with a bipolar electrosurgical scalpel, the clamping block being used to lock the bipolar electrosurgical scalpel to the positioning block; and a lower jaw fixture block disposed on the positioning base, the lower jaw fixture block being aligned with the positioning block, the lower jaw fixture block being connected to an upper jaw fixture block, the jaws of the bipolar electrosurgical scalpel being provided on the lower jaw fixture block, the upper jaw fixture block being used to press the jaws of the bipolar electrosurgical scalpel against the lower jaw fixture block. The present invention's bipolar electrosurgical scalpel welding fixture requires high-precision auxiliary assembly blocks with strong magnetic force for rapid adsorption and positioning of the workpiece during workpiece assembly. Secondly, an integrated fixture system is designed, allowing multiple processes to be performed at a single workstation. Finally, the rod positioning fixture is modular and adjustable, ensuring assembly rigidity while meeting the assembly requirements of products of varying lengths and models.

[0008] In one embodiment of the present invention, the clamping block is made of magnetic material, and is used to adsorb a bipolar electrosurgical knife.

[0009] In one embodiment of the present invention, the tooling block on the jaws is made of a magnetic material, and the tooling block on the jaws is used to adsorb a bipolar electric knife.

[0010] In one embodiment of the present invention, the positioning base is a rectangular flat plate, and a U-shaped groove 1 is provided on one of the rectangular surfaces at both ends of the length direction of the positioning base, and a U-shaped groove 2 is provided on the other opposite rectangular surface at both ends of the length direction of the positioning base, the U-shaped groove 1 and the U-shaped groove 2 are symmetrically arranged, and two parallel and symmetrically arranged waist-shaped holes are provided on the bottom surface between the U-shaped groove 1 and the U-shaped groove 2. The positioning base is a rectangular body as a whole, with high side chamfers to remove burrs generated by machining on the positioning base, making it convenient for the installation of parts. The bottom surface of the positioning base is flat, meets the precision requirements, and is convenient for fixing on the laser welding table. The top surface of the positioning base has U-shaped groove 1 and U-shaped groove 2, which are used to place the positioning block, and the bottom surfaces of the U-shaped groove 1 and the U-shaped groove 2 are support surfaces. There are U-shaped grooves 1 and 2 at the bottom of the base to facilitate the installation of the positioning block without affecting the flatness of its supporting surface. The supporting surface must be fine-machined to ensure that its flatness meets the processing requirements of the product. The width of U-shaped grooves 1 and 2 above the positioning base must be consistent with the positioning block, and the width of U-shaped grooves 1 and 2 remains unchanged, and the straightness must also meet the precision requirements.

[0011] In one embodiment of the present invention, the lower end of the positioning block is arranged in a U-shaped groove, and the upper end of the positioning block away from the U-shaped groove is provided with a V-shaped groove, and the bipolar electric knife is arranged in the V-shaped groove. The positioning block is arranged through the V-shaped groove structure, which can effectively fix and support the sleeve of the bipolar electric knife, and accurately provide stable and accurate positioning for the sleeve of the bipolar electric knife, ensuring the position accuracy of the workpiece during the welding process and avoiding errors caused by inaccurate positioning. In the welding jig, it is preferred to use three positioning blocks. The simultaneous use of the three positioning blocks limits the freedom of the workpiece in four directions, which meets the processing requirements. The positioning block is used in conjunction with the clamping block and is connected by bolts. The three modular positioning blocks must ensure that the bottom surface flatness, width size and positioning block contour are processed with high precision and meet the product positioning requirements. At the same time, the modular positioning block and the positioning base are matched with a small gap, which ensures the flatness and width of the groove and positioning block of the positioning base while also ensuring that the position of the sleeve of the bipolar electric knife meets the processing requirements.

[0012] In one embodiment of the present invention, a rectangular groove is provided at the bottom center of the V-shaped groove, and a circular groove (I) is provided on the bottom surface of the rectangular groove. The circular groove (I) is filled with magnetic material, and the magnetic material in the circular groove (I) is used to attract the bipolar electric knife. The clamping block is made of a strong magnetic material. This high-precision auxiliary assembly block with strong magnetic force has the function of quickly attracting and positioning the assembled workpiece. Therefore, the use of the positioning block and the clamping block also limits the freedom of rotation and movement of the sleeve around its own axis, achieving complete positioning and meeting the processing requirements of the product.

[0013] In one embodiment of the present invention, the jaw lower tooling block is a rectangular block, and the lower end of the jaw lower tooling block is arranged in a U-shaped groove. The upper end of the jaw lower tooling block away from the bottom surface of the U-shaped groove is provided with two limit baffles. The two limit baffles are symmetrically and parallelly arranged, and the two limit baffles are used to limit the jaws of the bipolar electric knife.

[0014] In one embodiment of the present invention, a portion of the jaw lower tooling block located between the two limit baffles is provided with a second circular groove, the second circular groove is filled with magnetic material, and the magnetic material in the second circular groove is used to adsorb the bipolar electric knife.

[0015] In one embodiment of the present invention, the cross-section of the tooling block on the jaws is L-shaped, one end face of the tooling block on the jaws is against the side face of the positioning block, and the other end of the tooling block on the jaws is buckled into two limit baffles to limit the jaws of the bipolar electric knife.

[0016] In one embodiment of the present invention, the end surface of the limit baffle in contact with the tooling block on the jaw is provided with step 1, and the end surface of the tooling block on the jaw in contact with the limit baffle is provided with step 2, and step 1 and step 2 are interlaced and buckled together.

[0017] The above technical solution of the utility model has the following beneficial effects compared with the prior art:

[0018] The welding fixture of the bipolar electric knife as a whole described in the utility model has a simple structure, is reliable to use, and is easy to operate. For the welding of the overall mechanism of the electric knife, it ensures that the position accuracy of the closer after welding meets the product requirements, ensures the relative position between the positioning plate and the internal parts of the product, reduces welding deformation and dimensional deviation, thereby ensuring product quality and making the product interchangeable; this fixture can quickly position the workpiece and facilitate clamping, reduces the physical labor of assembly positioning and clamping of weldments, improves working conditions, is conducive to safe production, and at the same time ensures the consistency of welding quality and improves welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to make the content of the utility model easier to understand, the utility model is further described in detail below based on the specific embodiments of the utility model and in conjunction with the accompanying drawings, wherein

[0020] Figure 1 This is a structural diagram of the bipolar electric knife in the preferred embodiment of the present invention when the welding tool is used;

[0021] Figure 2 The assembly of the welding tool for the bipolar electric knife in the preferred embodiment of the utility model Figure 1 ;

[0022] Figure 3 The assembly of the welding tool for the bipolar electric knife in the preferred embodiment of the utility model Figure 2 ;

[0023] Figure 4 This is an assembly diagram of the positioning block and the clamping block in a preferred embodiment of the present utility model;

[0024] Figure 5 This is an assembly diagram of the jaw lower tooling block and the jaw upper tooling block in a preferred embodiment of the present utility model;

[0025] Figure 6 This is a structural diagram of the lower jaw tooling block in a preferred embodiment of the present utility model;

[0026] Figure 7 This is a schematic structural diagram of the tooling block on the jaws in a preferred embodiment of the present invention;

[0027] Figure 8This is an assembly diagram of a bipolar electric knife and welding tooling in a preferred embodiment of the present utility model;

[0028] Figure 9 The welding position of the bipolar electric knife in the preferred embodiment of the utility model Figure 1 ;

[0029] Figure 10 The welding position of the bipolar electric knife in the preferred embodiment of the utility model Figure 2 .

[0030] Explanation of the reference numerals in the specification: positioning base 1, U-shaped groove one 11, U-shaped groove two 12, waist-shaped hole 13, positioning block 2, V-shaped groove 21, rectangular groove 211, circular groove one 212, bolt one 22, nut one 23, clamping block 3, lower tooling block of the jaw 4, limiting baffle 41, step one 411, bolt two 42, circular groove two 43, upper tooling block of the jaw 5, step two 51, U-shaped groove three 52, bipolar electrosurgical knife 100. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0032] The position of the bipolar electric knife 100 required for welding in the present invention is as follows Figure 8-10 As shown, the connection between the sleeve and the jaws is welded in a straight line at C, the rotating pin is welded in an annular manner at D, the positioning pin is welded in a single point at E, and the positioning plate is welded in a hole-shaft fit, using annular welding or three-point welding. Since the assembly appearance of this product requires very high precision, and it has no auxiliary positioning, auxiliary positioning is required during the tooling. Moreover, this welding requires many welding points and requires high welding accuracy, and the existing welding jigs cannot meet the product requirements. Moreover, most of the mechanisms are long rod components, and there are mechanisms of different lengths. The existing clamping methods are not sufficient to provide high-precision straightness. This will lead to problems such as excessive position errors in the welding positions of the positioning plates, etc., which will reduce the accuracy of the product and affect the quality of the product. Therefore, the welding tooling of the present invention is used to solve the above problems.

[0033] Reference Figure 1-3As shown, the welding tooling of the bipolar electric knife of the present invention comprises: a positioning base 1, a positioning block 2, a clamping block 3, a lower jaw tooling block 4 and an upper jaw tooling block 5; the positioning block 2 is provided in a plurality, and the positioning block 2 is provided on the positioning base 1, the positioning block 2 is connected with the clamping block 3, the positioning block 2 is provided with a bipolar electric knife, and the clamping block 3 is used to lock the bipolar electric knife to the positioning block 2; the lower jaw tooling block 4 is provided on the positioning base 1, and the lower jaw tooling block 4 and the positioning block 2 are in the same straight line, the lower jaw tooling block 4 is connected with the upper jaw tooling block 5, the jaws of the bipolar electric knife are provided on the lower jaw tooling block 4, and the upper jaw tooling block 5 is used to press the jaws of the bipolar electric knife on the lower jaw tooling block 4. The purpose of the positioning base 1 is to ensure the flatness, groove width and straightness of the supporting surface; the purpose of the positioning block 2 is to ensure the flatness, width and V-shaped profile of the bottom surface of the sleeve; the lower jaw tooling block 4 is to ensure the distance from the bottom surface of the lower jaw to the lower jaw surface, the flatness of the bottom surface, the width and the symmetry of the jaw positioning groove; the upper jaw tooling block 5 is to ensure the distance between the front and rear steps of the jaw and the flatness of the contact surface with the lower tooling; the clamping block 3 is only used to press the sleeve onto the positioning block 2 to fix the workpiece during welding.

[0034] In the above structure, the clamping block 3 is made of a magnetic material and is used to attract a bipolar electrocautery knife. The upper jaw fixture block 5 is also made of a magnetic material and is used to attract a bipolar electrocautery knife. The upper jaw fixture block 5 has strong magnetic properties, limiting the rotation and movement of the jaws. The distance between the front and rear steps of the upper jaw fixture block 5 must meet processing requirements to ensure accurate weld placement.

[0035] Reference Figure 2 、 3 As shown, the positioning base 1 is a rectangular flat plate, and a U-shaped groove 11 is provided on one of the rectangular surfaces at both ends of the length direction of the positioning base 1, and a U-shaped groove 2 12 is provided on the other opposite rectangular surface at both ends of the length direction of the positioning base 1. The U-shaped groove 11 and the U-shaped groove 2 12 are symmetrically arranged, and two parallel and symmetrical waist-shaped holes 13 are provided on the bottom surface between the U-shaped groove 11 and the U-shaped groove 2 12. A preferred solution is that two positioning blocks 2 are installed at the positions of the U-shaped groove 11 and the U-shaped groove 2 12 at one end of the length direction of the positioning base 1, and a positioning block 2 and a lower jaw tooling block 4 are installed at the positions of the U-shaped groove 11 and the U-shaped groove 2 12 at the other end of the length direction of the positioning base 1. The U-shaped groove 11 and the U-shaped groove 2 12 are provided on both sides to facilitate the positioning of products of different lengths.

[0036] Reference Figure 4As shown, the lower end of the positioning block 2 is disposed in a U-shaped groove 11, and a V-shaped groove 21 is provided at the upper end of the positioning block 2 away from the U-shaped groove 11, and the bipolar electric knife is disposed in the V-shaped groove 21. Two bolts 22 are connected to the positioning block 2, and nuts 23 are connected to the bolts 22. The heads of the bolts 22 are located on one side of the U-shaped groove 12, and the bolts 22 pass through the waist-shaped hole 13 and then through the positioning block 2 and the clamping block 3. The nuts 23 are screwed onto the threaded portion passing through the clamping block 3, thereby locking the positioning block 2 and the clamping block 3 in the position of the U-shaped groove 11 by the bolts 22 and the nuts 23. When locked, the bipolar electric knife is locked between the positioning block 2 and the clamping block 3. A rectangular groove 211 is provided at the bottom of the middle position of the V-shaped groove 21, and a circular groove 212 is provided on the bottom surface of the rectangular groove 211. The circular groove 212 is filled with magnetic material, and the magnetic material in the circular groove 212 is used to adsorb the bipolar electric knife.

[0037] Reference Figure 5 、 6 As shown, the lower jaw tooling block 4 is a rectangular block, with its lower end positioned within the U-shaped groove 11. Two stoppers 41 are positioned at the upper end of the block 4, away from the bottom of the U-shaped groove 11. The two stoppers 41 are symmetrically and parallel to each other, and the space between them serves to define the jaws of the bipolar electrosurgical unit. The stoppers 41 are positioned perpendicular to the lower jaw tooling block 4. The lower jaw tooling block 4 is rectangular and is connected to a second bolt 42. The head of the second bolt 42 is positioned on one side of the U-shaped groove 12, and the stud portion of the second bolt 42 passes through the waist-shaped hole 13 and is threadedly connected to the lower jaw tooling block 4. The portion of the lower jaw tooling block 4 located between the two stoppers 41 is provided with a second circular groove 43. This groove 43 is filled with a magnetic material, and the magnetic material in the second circular groove 43 serves to attract the bipolar electrosurgical unit.

[0038] The jaw lower fixture block 4 has the same width as the positioning block 2 and can be stuck in the groove of the positioning base 1. The jaw lower fixture block 4 and the positioning base 1 are connected by bolts. The jaws are placed above the jaw lower fixture block 4. The two limit baffles 41 at the upper end of the jaw lower fixture block 4 can just clamp the jaws to limit the rotation and movement of the jaws. The upper surface of the jaw lower fixture block 4 in contact with the jaws must be finely machined to ensure its flatness and straightness. The middle groove requires high-precision machining to meet the symmetry requirements relative to the width of the fixture block. Steps are set on the limit baffle 41, and the machining of the upper and lower steps must meet the precision requirements to ensure the position accuracy of the weld.

[0039] Reference Figure 5 、 7As shown, the cross-section of the jaw upper fixture block 5 is L-shaped. One end face of the jaw upper fixture block 5 abuts against the side face of the positioning block 2, and the other end of the jaw upper fixture block 5 snaps onto two limit baffles 41 to define the jaws of the bipolar electrosurgical knife. The end face of the limit baffle 41 that contacts the jaw upper fixture block 5 is provided with a step 1 411, and the end face of the jaw upper fixture block 5 that contacts the limit baffle 41 is provided with a step 2 51. The step 1 411 and the step 2 51 interlock together. The end of the jaw upper fixture block 5 that contacts the positioning block 2 is provided with a U-shaped groove 3 52, which clamps the outer wall of the bipolar electrosurgical knife.

[0040] The upper jaw fixture block 5 needs to have strong magnetic properties, so that its upper end step 2 51 fits neatly onto step 1 411 of the lower jaw fixture block 4. One end of the upper jaw fixture block 5 rests on the side wall of the positioning block 2, ensuring the positioning accuracy of the upper jaw. The lower jaw fixture block 4 and the upper jaw fixture block 5 are connected by screws.

[0041] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A bipolar electric knife integrated welding tool, characterized by: include, Positioning base; A plurality of positioning blocks are provided, and the positioning blocks are provided on the positioning base. The positioning blocks are connected to clamping blocks, and the positioning blocks are provided with a bipolar electric knife. The clamping blocks are used to lock the bipolar electric knife to the positioning blocks; The jaw lower tooling block is arranged on the positioning base, and the jaw lower tooling block and the positioning block are in the same straight line. The jaw upper tooling block is connected to the jaw lower tooling block, and the jaws of the bipolar electric knife are arranged on the jaw lower tooling block. The jaw upper tooling block is used to press the jaws of the bipolar electric knife on the jaw lower tooling block.

2. The welding tool for a bipolar electrosurgical unit according to claim 1, characterized in that: The clamping block is made of magnetic material and is used for adsorbing a bipolar electric knife.

3. The welding tool for a bipolar electric knife according to claim 1 or 2, characterized in that: The tooling block on the jaws is made of magnetic material, and is used for adsorbing a bipolar electric knife.

4. The welding tool for a bipolar electrosurgical unit according to claim 1, characterized in that: The positioning base is a rectangular flat plate, and a U-shaped groove 1 is provided on a rectangular surface at both ends of the length direction of the positioning base, and a U-shaped groove 2 is provided on the other opposite rectangular surface at both ends of the length direction of the positioning base. The U-shaped groove 1 and the U-shaped groove 2 are symmetrically arranged, and two parallel and symmetrically arranged waist-shaped holes are provided on the bottom surface between the U-shaped groove 1 and the U-shaped groove 2.

5. The welding tool for a bipolar electrosurgical unit according to claim 4, characterized in that: The lower end of the positioning block is arranged in the U-shaped groove 1, and the upper end of the positioning block away from the U-shaped groove 1 is provided with a V-shaped groove, and the bipolar electric knife is arranged in the V-shaped groove.

6. The welding tool for a bipolar electrosurgical unit according to claim 5, characterized in that: A rectangular groove is provided at the bottom of the middle position of the V-shaped groove, and a circular groove 1 is provided on the bottom surface of the rectangular groove. The circular groove 1 is filled with magnetic material, and the magnetic material in the circular groove 1 is used to adsorb the bipolar electric knife.

7. The welding tool for a bipolar electrosurgical unit according to claim 4, characterized in that: The jaw lower tooling block is a rectangular block, and the lower end of the jaw lower tooling block is arranged in a U-shaped groove. The upper end of the jaw lower tooling block away from the bottom surface of the U-shaped groove is provided with two limit baffles. The two limit baffles are symmetrically and parallelly arranged, and the two limit baffles are used to limit the jaws of the bipolar electric knife.

8. The welding tool for a bipolar electrosurgical unit according to claim 7, characterized in that: A second circular groove is provided on the portion of the jaw lower tooling block located between the two limit baffles. The second circular groove is filled with magnetic material, and the magnetic material in the second circular groove is used to adsorb the bipolar electric knife.

9. The welding tool for a bipolar electrosurgical unit according to claim 7, characterized in that: The cross-section of the tooling block on the jaws is L-shaped, one end face of the tooling block on the jaws is against the side face of the positioning block, and the other end of the tooling block on the jaws is buckled on two limit baffles to limit the jaws of the bipolar electric knife.

10. The welding tool for a bipolar electrosurgical unit according to claim 9, characterized in that: The end surface of the limit baffle in contact with the tooling block on the jaw is provided with a first step, and the end surface of the tooling block on the jaw in contact with the limit baffle is provided with a second step, and the first step and the second step are interlaced and buckled together.

Images