Needle holding forceps machining clamp

Abstract

The utility model discloses a needle-holding forceps processing clamp which comprises a clamp main body, and the clamp main body is provided with a clamping structure used for clamping needle-holding forceps; the positioning structure is arranged on the clamping structure and is used for fixing the needle holding forceps in the clamping structure; the clearance groove is used for adjusting the clamping structure to clamp the needle holding forceps; and the locking structure is connected with the gap groove, and the locking structure is used for adjusting the size of the gap groove. The positioning structure is arranged on one side of the clamping structure, horizontal plane displacement of the needle holding forceps in the machining process can be effectively limited, meanwhile, the size of the gap groove is controlled through the locking structure, the clamping structure can be tightly attached to the needle holding forceps, the needle holding forceps are further limited through the positioning structure, and the machining precision is improved. Therefore, the fixture can be stably fixed on a vertical plane, the machining error is reduced, and the machining precision is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of processing fixtures and relates to a needle holding clamp processing fixture. Background Art

[0002] In the field of medical surgery, needle holders are an important surgical tool used to clamp needles and threads for suturing. With the development of society and the advancement of science and technology, the demand for needle holders is also increasing. In the existing technology, the clamp tooling for producing needle holders usually adopts a simple clamping structure. In this way, the clamp tooling for producing needle holders can only limit the horizontal displacement of the needle holder during the processing, and cannot be stably fixed on the vertical plane. The existing processing often lacks sufficient clamping stability and precision, resulting in inaccurate positioning of the needle holder during the processing, increasing the processing error, and the inaccurate needle holder will cause great trouble to the user. Utility Model Content

[0003] The utility model provides a needle holding forceps processing fixture, which aims to solve the problem of inaccurate precision caused by instability during the needle holding forceps processing by arranging a clamping structure and a locking structure.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A needle holding forceps processing fixture includes a fixture body, on which are provided: a clamping structure for clamping the needle holding forceps; a positioning structure provided on the clamping structure for fixing the needle holding forceps in the clamping structure; a gap groove for adjusting the clamping structure to clamp the needle holding forceps; and a locking structure connected to the gap groove for adjusting the size of the gap groove.

[0006] Furthermore, the locking structure includes a locking member and a locking channel; the locking channel passes through the clamp body and the gap groove; and the locking member and the locking channel are movably connected.

[0007] Furthermore, a clearance groove is provided at the connection between the clamp body and the locking member.

[0008] Furthermore, the clamping structure includes a first clamping plate and a second clamping plate that are arranged opposite to each other, and the needle holder is clamped between the first clamping plate and the second clamping plate;

[0009] The positioning structure is located on the first clamping plate.

[0010] Furthermore, the first clamping plate is provided with a first positioning hole and a second positioning hole matching the positioning structure; the positioning structure includes a first positioning pin and a second positioning pin; the first positioning pin and the second positioning pin are movably connected to the first positioning hole and the second positioning hole respectively.

[0011] Furthermore, the second clamping plate is provided with an auxiliary hole arranged opposite to the first positioning hole; the first positioning pin can pass through the first positioning hole and the needle holder in sequence and then be movably connected with the auxiliary hole.

[0012] Furthermore, a contoured structure is provided on the upper side of the clamp body for fitting the outer shape of the needle holder.

[0013] Furthermore, the profiling structure includes a profiling surface, and the profiling surface is provided with a profiling boss.

[0014] Furthermore, a supporting surface is provided on the top of the contoured boss.

[0015] Furthermore, the clamp body is made of elastic metal material.

[0016] The beneficial effects of the present utility model are as follows: the present application can effectively limit the horizontal displacement of the needle holder during the processing by arranging a positioning structure on one side of the clamping structure, and at the same time control the size of the gap groove through the locking structure, so that the clamping structure can fit tightly with the needle holder, and the positioning structure further limits the needle holder so that it can be stably fixed on the vertical plane, reducing processing errors and improving processing accuracy. Since the clamp can stably fix the needle holder, the processing error caused by unstable clamping is reduced, thereby improving production efficiency and the quality of the final product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the processing and assembly structure of the needle holding forceps of the utility model.

[0018] Figure 2 It is a schematic diagram of the processing fixture of the present utility model.

[0019] Figure 3 This is the main view of the fixture body of the present utility model.

[0020] Figure 4 This is a schematic diagram of the clamp body of the utility model from another perspective.

[0021] The description of the accompanying figures is as follows: 1-clamp body; 2-clamping structure; 3-positioning structure; 4-locking structure; 5-clearance groove; 6-avoidance groove; 7-needle holding forceps; 11-contact structure; 21-first clamping plate; 22-second clamping plate; 31-first positioning pin; 32-second positioning pin; 41-locking member; 42-locking channel; 111-contact surface; 112-contact boss; 113-support surface; 211-first positioning hole; 212-second positioning hole; 213-auxiliary hole. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. It should be understood that this application is not limited to the example embodiments disclosed herein. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0025] In the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium; internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0026] The utility model provides an attached Figures 1 to 4In an embodiment of the utility model, a needle holding forceps processing fixture includes a fixture body 1, and the fixture body 1 is provided with: a clamping structure 2, used to clamp the needle holding forceps 7; a positioning structure 3, provided on the clamping structure 2, used to fix the needle holding forceps 7 in the clamping structure 2; a gap groove 5, and the gap groove 5 is used to adjust the clamping structure 2 to clamp the needle holding forceps 7; a locking structure 4, connected to the gap groove 5, and the locking structure 4 is used to adjust the size of the gap groove 5.

[0027] The clamping structure 2 is used to clamp the needle holder 7 and limit the horizontal displacement of the needle holder 7. The positioning structure 3 on the clamping structure 2 further limits the vertical direction of the needle holder 7 to prevent the needle holder 7 from shaking up and down on the clamp body 1. The locking structure 4 is used to reduce the gap in the gap groove 5 on the clamp body 1, so that the clamping structure 2 fits the needle holder 7 more closely as the gap decreases, making the needle holder 7 more stable. Specifically, in the processing preparation stage of the needle holder 7, the needle holder 7 is placed in the clamping structure 2, and the position of the needle holder 7 is fixed by the positioning structure 3. After fixation, the locking structure 4 is locked. Under the locking force, the gap in the gap groove 5 is reduced, and the gap between the clamping structures 2 is also reduced. The clamping structure 2 is tightly fitted to the needle holder 7, and the processing preparation of the needle holder 7 is completed.

[0028] The locking structure 4 includes a locking member 41 and a locking channel 42; the locking channel 42 passes through the clamp body 1 and the gap groove 5; the locking member 41 and the locking channel 42 are threadedly connected. Specifically, the locking member 41 can be a nut, and the locking channel 42 is a threaded channel passing through the clamp body 1. The bolt and the threaded channel are threadedly connected, and the size of the gap in the gap groove 5 is driven by the rotation of the bolt. When the bolt is tightened, the gap in the gap groove 5 is reduced, and the clamping structure 2 is clamped accordingly. When the bolt is reversed, the gap in the gap groove 5 is increased, and the clamping structure 2 is loosened accordingly, and the workpiece can be taken out at this time. Through the threaded connection, the locking member 41 can rotate forward or backward in the locking channel 42, thereby adjusting the size of the gap groove 5 on the clamp body 1. This mechanism allows the operator to flexibly adjust the clamping force according to the size and processing requirements of the needle holder 7, ensuring that needle holders 7 of different specifications can be firmly fixed.

[0029] Furthermore, the locking member 41 can be a rotating arm with an arc-shaped end, and the locking channel 42 can be a fixed ring or arc-shaped track. By rotating the locking member 41, the arc-shaped end is moved along the ring or track to achieve clamping or release of the workpiece. This method is suitable for situations where pressure needs to be applied from multiple directions at the same time.

[0030] An escape groove 6 is provided at the connection between the clamp body 1 and the locking member 41, and the locking channel 42 is located in the escape groove 6. The clamp body 1 is mostly cylindrical, and the contact area of ​​the locking member 41 on the cylindrical outer surface is far less than that on a flat surface. Moreover, if the locking member 41 is clamped on the cylindrical surface, it is easy to be dislocated or slipped along the cylindrical surface. The main function of the escape groove 6 is to avoid physical interference between the locking member 41 and other parts of the clamp body 1 during operation. In particular, when the locking member 41 needs to move or rotate to achieve locking, the escape groove 6 provides the locking member 41 with the necessary space to ensure that it can freely perform the predetermined action without hindrance. Taking the above situation into consideration, the side of the clamp body 1 is provided with an escape groove 6 with a flat bottom surface, which provides the locking member 41 with a bearing plane, that is, when the locking member 41 is subjected to a clamping force, the locking member 41 can fit tightly into the escape groove 6, and there will be no problem of dislocation or misalignment with the locking channel 42 during clamping.

[0031] The clamping structure 2 includes a first clamping plate 21 and a second clamping plate 22 that are arranged opposite to each other; the positioning structure 3 is located on the first clamping plate 21. The first clamping plate 21 and the second clamping plate 22 are integrally formed on the upper side of the clamp body 1. The first clamping plate 21 and the second clamping plate 22 are positioned opposite to each other and are arranged in parallel. The first clamping plate 21 is provided with a corresponding structure for placing the positioning structure 3, which can be a positioning hole or a positioning long groove or other structure with a limiting function. The positioning structure 3 is movably connected to the first clamping plate 21 using the corresponding structure. The positioning structure 3 is used to limit the needle holder 7 clamped between the first clamping plate 21 and the second clamping plate 22. Unlike the clamping plate that limits the left and right sides of the needle holder 7, the positioning structure 3 limits the upper and lower movable directions of the needle holder 7.

[0032] The first clamping plate 21 is provided with a first positioning hole 211 and a second positioning hole 212 that match the positioning structure 3; the positioning structure 3 includes a first positioning pin 31 and a second positioning pin 32; the first positioning pin 31 and the second positioning pin 32 are movably connected to the first positioning hole 211 and the second positioning hole 212 respectively. Specifically, the positioning structure 3 can be a positioning pin, the first positioning pin 31 is inserted into the first positioning hole 211, and the second positioning pin 32 is inserted into the second positioning hole 212. The size and shape of the positioning pin and the positioning hole match each other, so that there is no excessive gap when the positioning pin is inserted into the positioning hole, avoiding vibration problems and low processing accuracy caused by the gap between the positioning pin and the positioning hole during the processing. The precise matching of the positioning pin and the positioning hole makes the starting position of each processing consistent, enhancing the repeatability and reliability of the production process. This is especially important for mass production to ensure that each product meets the same quality standards.

[0033] In the preparation stage before processing, the needle holder 7 is placed in the clamping structure 2, the first positioning pin 31 passes through the first positioning hole 211 and abuts against the needle holder 7, and the second positioning pin 32 passes through the second positioning hole 212 and the needle holder 7 in turn and abuts against the second clamping plate 22. Furthermore, an abutment groove can be provided on the second clamping plate 22, and the second positioning pin 32 abuts against the abutment groove.

[0034] The second clamping plate 22 is provided with an auxiliary hole 213, positioned opposite the first positioning hole 211. The first positioning pin 31 can be inserted through the first positioning hole 211 and then movably connected to the auxiliary hole 213. While the first and second positioning pins 31, 32 abut and position the needle holder 7, the second clamping plate 22 is provided with an auxiliary hole 213 to enhance positioning stability. The first positioning pin 31 sequentially passes through the first positioning hole 211, the needle holder 7, and the auxiliary hole 213. These multiple limiting structures enhance the stability of the needle holder 7 during processing.

[0035] The upper side of the fixture body 1 is provided with a contoured structure 11 that conforms to the outer shape of the needle holder. The presence of contoured structure 11 in the needle holder machining fixture is primarily to improve machining accuracy and efficiency. Considering the diversity of needle holders 7 types and structures, contoured structure 11, through its specific shape, matches the outer shape of needle holder 7, ensuring the correct positioning of needle holder 7 during machining and reducing machining errors caused by inaccurate positioning.

[0036] Specifically, the profiling structure 11 can be a boss-type profiling structure 11, which provides stable support and precise positioning by arranging a raised platform or boss on the clamp, and its shape matches certain parts of the needle holder 7; the profiling structure 11 can also be a recessed profiling structure 11, and recessed areas are provided in the clamp, and the contours of these areas match the outer shape of the needle holder 7, so that the needle holder 7 can be stably embedded therein, thereby achieving precise positioning; the profiling structure 11 can also be a combined profiling structure 11, which combines the boss and recessed structures to provide corresponding support and positioning for different parts of the needle holder 7 to adapt to complex shapes and improve overall stability and precision; more specifically, the profiling structure 11 can also be an adjustable profiling structure 11, which allows the shape or size of the profiling structure 11 to be changed by adjusting certain components, so that it can adapt to needle holders 7 of different models or sizes.

[0037] In this embodiment, the contouring structure 11 includes a contouring surface 111, on which contouring bosses 112 are provided. The contour of contouring surface 111 is designed to match the outer shape of the needle holder 7. When the needle holder 7 is placed on the fixture, it naturally fits into the contouring surface 111 for initial positioning. Contouring bosses 112, as protrusions on contouring surface 111, are designed with their position, shape, and size based on key areas of the needle holder 7. There can be one or more bosses, providing direct physical support for the needle holder 7, particularly below key areas of the needle holder 7, thereby effectively reducing micro-movement during machining. The design of contouring surface 111 enables the needle holder 7 to be accurately placed in the fixture at the predetermined position, reducing machining errors caused by positional deviations. Contouring bosses 112 provide a specific physical support point for the needle holder 7, preventing displacement or swinging during machining, particularly when subjected to external forces (such as machining cutting forces).

[0038] The top of the profiling boss 112 is provided with a support surface 113. The support surface 113 can be a plane, an arc or curved surface, a V-shaped groove, a dot-shaped protrusion, a wave shape or a sawtooth shape, a deformable or elastic material surface, etc.

[0039] Specifically, for the part of the needle holder 7 that requires large-area stable support, a plane is a simple and effective choice. Plane support can provide uniform contact, disperse pressure, and is suitable for the relatively flat surface of the needle holder 7; for those needle holders 7 with curved outer parts, such as circular, semicircular or other curved shapes, using an arc-shaped or curved support surface 113 can better match its outer shape and provide more stable support; for the part of the needle holder 7 with a cylindrical or similar shape, the V-shaped groove can provide a stable three-point support, effectively preventing rotation or displacement during the processing process; for situations where specific point support is required, the point-shaped protrusions can be accurately positioned in a small area on the needle holder 7, which is suitable for fine positioning needs; the wavy or serrated support surface 113 can provide stable support while adapting to dimensional changes within a certain range, increasing the adaptability of the clamp to needle holders 7 of different sizes; using a material with certain elastic or deformable properties as the support surface 113, it can be moderately deformed according to the actual placement of the needle holder 7, so as to better adapt to its outer shape and provide personalized support.

[0040] The clamp body 1 is made of elastic metal material. Elastic metal material can undergo elastic deformation under the action of external force. This characteristic enables the clamp to adjust the size of the gap groove 5 through elastic deformation under the action of the locking structure 4. When the locking structure 4 is tightened, the elastic material can deform moderately, thereby reducing the space of the gap groove 5, increasing the clamping force and contact area of ​​the clamping structure 2 on the needle holder 7, and improving stability and positioning accuracy. Since the elastic metal material has a certain variability, the gap groove 5 can adapt to needle holders 7 of different sizes in different situations. This adaptability enables the clamp to handle workpieces of different sizes within a certain range, improving the versatility and flexibility of the clamp.

[0041] It should also be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device comprising the element.

[0042] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present application. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A needle holding clamp processing fixture, characterized in that, The clamp comprises a main body, on which is provided: A clamping structure for clamping the needle holder; a positioning structure, provided on the clamping structure, for fixing the needle holder in the clamping structure; a clearance groove, wherein the clearance groove is used to adjust the clamping structure to clamp the needle holder; A locking structure is connected to the gap groove, and the locking structure is used to adjust the size of the gap groove.

2. A needle holding clamp processing fixture according to claim 1, characterized in that: The locking structure includes a locking member and a locking channel; The locking channel passes through the clamp body and the clearance groove; The locking member and the locking channel are movably connected.

3. The needle holding clamp processing fixture according to claim 2, characterized in that: A clearance groove is provided at the connection between the clamp body and the locking member.

4. The needle holding clamp processing fixture according to claim 1, characterized in that: The clamping structure comprises a first clamping plate and a second clamping plate arranged opposite to each other, and the needle holder is clamped between the first clamping plate and the second clamping plate; The positioning structure is located on the first clamping plate.

5. The needle holding clamp processing fixture according to claim 4, characterized in that: The first clamping plate is provided with a first positioning hole and a second positioning hole matching the positioning structure; The positioning structure includes a first positioning pin and a second positioning pin; The first positioning pin and the second positioning pin are movably connected to the first positioning hole and the second positioning hole respectively.

6. The needle holding clamp processing fixture according to claim 5, characterized in that: The second clamping plate is provided with an auxiliary hole arranged opposite to the first positioning hole; The first positioning pin can pass through the first positioning hole and the needle holder in sequence and then be movably connected to the auxiliary hole.

7. The needle holding clamp processing fixture according to claim 1, characterized in that: The upper side of the clamp body is provided with a contoured structure for fitting the outer shape of the needle holder.

8. The needle holding clamp processing fixture according to claim 7, characterized in that: The profiling structure comprises a profiling surface, and a profiling boss is provided on the profiling surface.

9. The needle holding clamp processing fixture according to claim 8, characterized in that: The top end of the contoured boss is provided with a supporting surface.

10. A needle holding clamp processing fixture according to any one of claims 1 to 9, characterized in that: The clamp body is made of elastic metal material.

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