A sampling tongs head seat welding tool

Abstract

The utility model discloses a sampling tongs tongs head seat welding frock belongs to sampling tongs processing frock technical field, including base, sliding seat, locking structure and fixed structure, and sliding seat is slidably connected with base, and the recess is set up on the base, and locking structure is used for locking tongs head seat on sliding seat, and tongs head seat can slide into recess under the drive of sliding seat, and the recess has the inclined resistance surface, and sliding sliding seat can drive tongs head seat to move to make the connecting arm deforms under the resistance of resistance surface, and fixed structure is used for fixing sliding seat on base. The utility model discloses a sampling tongs tongs head seat welding frock, and the connecting arm of external expansion can be adjusted in place through simple sliding operation, guarantees the welding quality between tongs head seat and pin shaft, avoids the situation that left tongs head and right tongs head move axially along pin shaft, guarantees the use reliability of sampling tongs tongs head subassembly, and convenient operation.

Description

Technical Field

[0001] This utility model relates to the field of sampling clamp processing tooling technology, and in particular, to a sampling clamp head seat welding tooling. Background Technology

[0002] Sampling forceps are medical devices used in the medical field to collect samples of human tissue, cells, or lesions, primarily for pathological examination to determine tissue health status. They typically consist of a forceps head assembly, a flexible tube, and a handle. For a specific structure, please refer to the utility model patent (publication number CN221205502U) filed by the applicant on January 29, 2024. This patent discloses a disposable endoscopic sampling forceps with a rotatable forceps head, in which the forceps head assembly, as the core component, plays a crucial role in its use. As described in the aforementioned patent document, the forceps head assembly includes a forceps head base, a left forceps head, and a right forceps head. The forceps head base has a mounting groove, within which a pin is fixed. Both the left and right forceps heads are rotatably mounted on the pin. During use, tissue sampling is achieved by controlling the opening and closing of the left and right forceps heads. Ideally, to prevent the parts of the left and right forceps heads connected to the pin from moving axially along the pin, thus affecting the stability of their movement, the mounting groove needs to be machined to a specific width. However, in actual production, the connecting arms on the opposite sides of the mounting slot on the plier head seat are usually in an outward-expanding state, which increases the opening width at the end of the mounting slot. This makes it easy for the left and right plier heads to move axially along the pin when the pin is connected to the mounting slot by laser welding, thus affecting the reliability of the plier head assembly.

[0003] Therefore, it is necessary to provide a welding fixture for the pliers head to prevent the pliers head from being in an outward expansion state when welding the pin. Utility Model Content

[0004] The technical problem to be solved by this utility model is: in order to overcome the above-mentioned defects in the prior art, a sampling clamp head seat welding fixture that is easy to operate and can guarantee welding quality is provided.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a sampling clamp head seat welding fixture, suitable for clamp head seats, the clamp head seat has a cylindrical structure, the clamp head seat includes a connecting part and two connecting arms connected to the end of the connecting part, including a base, a slide, a locking structure and a fixing structure, the slide is slidably connected to the base, the base has a groove, the locking structure is used to lock the clamp head seat on the slide, the clamp head seat can slide into the groove under the drive of the slide, the groove has an inclined abutment surface, sliding the slide can drive the clamp head seat to move so that the connecting arms are deformed under the obstruction of the abutment surface, and the fixing structure is used to fix the slide on the base.

[0006] Furthermore, the base includes a horizontal plate and a vertical plate connected to each other, the groove is formed on the vertical plate, the slide includes a sliding plate and a support base connected to each other, the sliding plate is slidably connected to the vertical plate, the clamp head is fixedly installed on the support base, and the support base can enter the groove under the drive of the sliding plate.

[0007] Furthermore, the locking structure is mounted on the support base, and the fixing structure is mounted between the longitudinal plate and the sliding plate.

[0008] Furthermore, the side wall of the longitudinal plate is provided with a protruding strip, and the sliding plate is provided with a sliding groove, which cooperates with the protruding strip and can slide relative to it.

[0009] Furthermore, the groove has a bottom plane and a longitudinal plane that are perpendicular to each other, the abutting surface is connected to the longitudinal plane and is disposed opposite to the bottom plane, the support base has a cuboid structure, and the lower surface of the support base is in contact with the bottom plane and can slide relative to it.

[0010] Furthermore, a U-shaped mounting groove is provided on the upper surface of the support base, and the bottom arc of the U-shaped mounting groove is adapted to the outer circle of the pliers head base.

[0011] Furthermore, the locking structure is a locking bolt installed on the side wall of the support base, the end of the locking bolt extending into the U-shaped mounting groove and abutting against the outer wall of the connecting part.

[0012] Furthermore, the fixing structure includes a fixing bolt and a fixing nut that cooperate with each other. The fixing bolt is mounted on the longitudinal plate, passes through the sliding plate, and the fixing nut is mounted on the fixing bolt.

[0013] Furthermore, the longitudinal plate has a connecting hole for installing a fixing bolt, and the sliding plate has a waist-shaped hole along the sliding direction of the slide block. The fixing bolt passes through the waist-shaped hole and can slide along the waist-shaped hole relative to it.

[0014] The beneficial effects of this utility model are as follows: The sampling clamp head seat welding fixture of this utility model first clamps and fixes the clamp head seat to be welded onto the slide, and then moves the slide until the connecting arm is pressed into place by the abutment surface. At this time, the end of the pin can be welded to the connecting arm. This welding fixture can adjust the outwardly expanded connecting arm into place through a simple sliding operation, ensuring the welding quality between the clamp head seat and the pin, avoiding the situation where the left and right clamp heads move axially along the pin, ensuring the reliability of the sampling clamp head assembly, and facilitating operation. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 This is a schematic diagram of the connection structure between the pliers head and the pin.

[0017] Figure 2 This is a perspective view of the sampling clamp head seat welding fixture of this utility model;

[0018] Figure 3 yes Figure 2 A magnified view of point A in the welding fixture for the sampling clamp head seat shown;

[0019] Figure 4 yes Figure 2 A perspective view of the sampling clamp head seat welding fixture from another angle;

[0020] Figure 5 yes Figure 4 A magnified view of part B in the welding fixture for the sampling clamp head seat shown;

[0021] Figure 6 yes Figure 2 An exploded view of the welding fixture for the sampling clamp head seat shown (fixed structure omitted);

[0022] Figure 7 yes Figure 2 The right view of the welding fixture for the sampling clamp head seat shown;

[0023] Figure 8 yes Figure 7 The image shows a magnified view of point C in the welding fixture for the sampling clamp head seat.

[0024] In the diagram: 100, clamp head seat; 101, U-shaped groove; 102, connecting arm; 1021, through hole; 103, connecting part; 200, pin; 10, base; 11, groove; 111, bottom plane; 112, longitudinal plane; 12, supporting surface; 13, horizontal plate; 14, longitudinal plate; 141, protrusion; 142, connecting hole; 20, slide; 21, sliding plate; 211, sliding groove; 22, support seat; 221, U-shaped mounting groove; 23, waist-shaped hole; 30, locking structure; 40, fixing structure; 41, fixing bolt; 42, fixing nut. Detailed Implementation

[0025] The present invention will now be described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0026] Please see Figure 1 This utility model provides a welding fixture for a sampling pliers head seat, suitable for welding a pliers head seat 100. It is mainly used to clamp and fix the pliers head seat 100 when welding a pin 200 onto it. The pliers head seat 100 is made of stainless steel and is generally cylindrical. A U-shaped groove 101 is formed on the pliers head seat 100, and connecting arms 102 are formed on both sides of the U-shaped groove 101. The connecting arms 102 can deform under external force. A connecting portion 103 is formed on the pliers head seat 100 where it meets the connecting arms 102. The connecting portion 103 is cylindrical. A through hole 1021 is formed on the connecting arms 102 for connecting the pin 200. During connection, the pin 200 is fixedly welded between the two connecting arms 102 using laser welding.

[0027] Please combine Figures 2-8 The sampling forceps head seat welding fixture of this utility model includes a base 10, a slide 20, a locking structure 30, and a fixing structure 40. The slide 20 is slidably mounted on the base 10. The base 10 has a groove 11 with an opening. The slide 20 is used to install the forceps head seat 100. The locking structure 30 is used to lock the forceps head seat 100 on the slide 20. The forceps head seat 100 can enter the groove 11 from the opening side under the action of the slide 10. The groove 11 has an inclined abutment surface 12. The sliding slide 10 can drive the forceps head seat 100 to move, thereby causing the connecting arm 102 to deform under the obstruction of the abutment surface 12. The fixing structure 40 is used to fix the slide 20 on the base 10.

[0028] In use, the connecting part 103 of the pliers head seat 100 is fixedly clamped onto the slide 20 by the locking structure 30, so that the two connecting arms 102 are in a vertical position. Then, by manually sliding the slide 20, the pliers head seat 100 is gradually brought into the groove 11 from the opening side. When it moves to the point where the arc surface of the upper connecting arm 102 abuts against the abutting surface 12, the slide 20 is moved further, and the connecting arm 102 deforms under the pushing of the abutting surface 12. The pliers are then pulled inward until the cylindrical connecting part 103 abuts against the holding surface 12. At this point, the pliers head seat 100 can no longer move and moves into place. The connecting arm 102, which was originally open outward, is squeezed and deformed into place, so that the outer circular surface of the connecting arm 102 is coplanar with the outer circular surface of the connecting part 103. Then, the pin 200 is inserted into the through hole 1021, and one end of the pin 200 is fixed to one of the connecting arms 102 by laser welding. After the above operations are completed, release the locking structure 30 and the fixing structure 40, remove the pliers head seat 100 and the slide 20, then rotate the pliers head seat 100 180° and fix it on the slide 20 again, and push it into the groove 11 again. After the connecting arm 102 located above is pushed into place, the two opposite groove walls of the U-shaped groove 101 are parallel to each other. At this time, laser welding is performed on the other end of the pin 200 to connect and fix it to the other connecting arm 102. At this time, the welding between the pliers head seat 100 and the pin 200 is completed.

[0029] In this embodiment, the base 10 has an L-shaped structure. The base 10 includes a horizontal plate 13 and a vertical plate 14 that are connected to each other. The horizontal plate 13 and the vertical plate 14 are perpendicular to each other. The horizontal plate 13 is used to be fixedly connected to the bearing surface (e.g., a tabletop). The slide 20 is slidably mounted on the vertical plate 14.

[0030] Specifically, the slide 20 includes a sliding plate 21 and a support base 22. The sliding plate 21 is vertically arranged, and the support base 22 is fixedly connected to the top of one side of the sliding plate 21. The sliding plate 21 is slidably connected to the longitudinal plate 14 of the base 10. The pliers head seat 100 is fixedly installed on the support base 22, and the support base 22 can enter the groove 11 under the action of the sliding plate 21. A locking structure 30 is installed on the support base 22 to fix the pliers head seat 100 on the support base 22. A fixing structure 40 is installed between the longitudinal plate 14 of the base 10 and the sliding plate 21 to fix the sliding plate 21 on the longitudinal plate 14.

[0031] Please see Figure 6In this embodiment, a protruding strip 141 is provided on the side wall of the longitudinal plate 14, and a sliding groove 211 is provided on the sliding plate 21. The sliding groove 211 and the protruding strip 141 cooperate with each other, and the two can slide relative to each other. In this way, the sliding connection between the slide 20 and the base 10 is realized through the cooperation between the two. As a preferred embodiment, the protruding strip 141 has a dovetail structure to prevent the slide 20 from separating from the base 10.

[0032] In this embodiment, the groove 11 is formed on the side wall of the longitudinal plate 14. The groove 11 has a bottom plane 111 and a longitudinal plane 112. The bottom plane 111 is horizontally arranged, and the longitudinal plane 112 is vertically arranged and perpendicular to the bottom plane 111. The abutment surface 12 is connected to the longitudinal plane 112 and is arranged opposite to the bottom plane 111. The support base 22 has a cuboid structure. The lower surface of the support base 22 is in contact with the bottom plane 111 and the two can slide relative to each other. The pliers head seat 100 is installed on the upper surface of the support base 22.

[0033] In this embodiment, a U-shaped mounting groove 221 is provided on the upper surface of the support base 22. The bottom arc of the U-shaped mounting groove 221 is adapted to the outer circle of the pliers head seat 100. Thus, the pliers head seat 100 can be installed in the U-shaped mounting groove 221, so that the arc-shaped groove wall of the U-shaped mounting groove 221 fits against the outer peripheral surface of the pliers head seat 100. It should be noted that when the pliers head seat 100 is first installed in the U-shaped mounting groove 221, the pliers head seat 100 needs to be pressed down forcefully to make the connecting arm 102 at the bottom fit against the arc-shaped groove wall of the U-shaped mounting groove 221. Then, the pliers head seat 100 is locked onto the support base 22 by the locking structure 30.

[0034] In this embodiment, the locking structure 30 is a locking bolt installed on the side wall of the support base 22. The end of the locking bolt extends into the U-shaped mounting groove 221 and abuts against the outer wall of the connecting part 103, thereby locking the pliers head seat 100 onto the support base 22. In use, the user can easily disassemble and assemble the pliers head seat 100 by tightening or loosening the locking bolt.

[0035] In addition, a connecting hole 142 is provided on the longitudinal plate 14 of the base 10, and a waist-shaped hole 23 is provided on the sliding plate 21 of the slide 20 along the sliding direction of the slide 21. The fixing structure 40 includes a fixing bolt 41 and a fixing nut 42 that cooperate with each other. The fixing bolt 41 is threadedly connected to the connecting hole 142 and passes through the waist-shaped hole 23. When the slide 20 slides relative to the base 10, the fixing bolt 41 slides relative to the waist-shaped hole 23 along the waist-shaped hole 23. After the slide 20 drives the pliers head seat 100 to move into place, the user tightens the fixing nut 42. The fixing nut 42 presses against the side wall of the sliding plate 21, thereby pressing and fixing the sliding plate 21 onto the longitudinal plate 14 of the base 10.

[0036] The sampling clamp head seat welding fixture of this utility model first clamps the clamp head seat 100 to be welded onto the slide 20, and then moves the slide 20 until the connecting arm 102 is pressed into place by the abutment surface 12. At this time, the end of the pin 200 can be welded to the connecting arm 102. This welding fixture can adjust the outwardly expanded connecting arm 102 into place through a simple sliding operation, ensuring the welding quality between the clamp head seat 100 and the pin 200, avoiding the axial movement of the left and right clamp heads along the pin 200, ensuring the reliability of the sampling clamp head assembly, and facilitating operation.

[0037] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A sampling clamp head seat welding fixture, suitable for clamp head seats, wherein the clamp head seat has a cylindrical structure, and the clamp head seat includes a connecting part and two connecting arms connected to the end of the connecting part, characterized in that: The device includes a base, a slide, a locking structure, and a fixing structure. The slide is slidably connected to the base. The base has a groove. The locking structure is used to lock the pliers head onto the slide. The pliers head can slide into the groove under the action of the slide. The groove has an inclined abutment surface. Sliding the slide can move the pliers head so that the connecting arm deforms under the obstruction of the abutment surface. The fixing structure is used to fix the slide onto the base.

2. The sampling clamp head seat welding fixture as described in claim 1, characterized in that: The base includes a horizontal plate and a vertical plate connected to each other. The groove is formed on the vertical plate. The slide includes a sliding plate and a support base connected to each other. The sliding plate is slidably connected to the vertical plate. The clamp head is fixedly installed on the support base. The support base can enter the groove under the drive of the sliding plate.

3. The sampling clamp head seat welding fixture as described in claim 2, characterized in that: The locking structure is installed on the support base, and the fixing structure is installed between the longitudinal plate and the sliding plate.

4. The sampling clamp head seat welding fixture as described in claim 3, characterized in that: The longitudinal plate has a raised strip on its side wall, and the sliding plate has a sliding groove. The sliding groove and the raised strip cooperate with each other and can slide relative to each other.

5. The sampling clamp head seat welding fixture as described in claim 3, characterized in that: The groove has a bottom plane and a longitudinal plane that are perpendicular to each other. The abutting surface is connected to the longitudinal plane and is arranged opposite to the bottom plane. The support base has a cuboid structure. The lower surface of the support base is in contact with the bottom plane and can slide relative to it.

6. The sampling clamp head seat welding fixture as described in claim 3, characterized in that: The upper surface of the support base is provided with a U-shaped mounting groove, and the bottom arc of the U-shaped mounting groove is adapted to the outer circle of the clamp head base.

7. The sampling clamp head seat welding fixture as described in claim 6, characterized in that: The locking structure is a locking bolt installed on the side wall of the support base. The end of the locking bolt extends into the U-shaped mounting groove and abuts against the outer wall of the connecting part.

8. The sampling clamp head seat welding fixture as described in claim 3, characterized in that: The fixing structure includes a fixing bolt and a fixing nut that cooperate with each other. The fixing bolt is installed on the longitudinal plate, passes through the sliding plate, and is installed on the fixing bolt.

9. The sampling clamp head seat welding fixture as described in claim 8, characterized in that: The longitudinal plate has a connecting hole for installing a fixing bolt, and the sliding plate has a waist-shaped hole along the sliding direction of the slide block. The fixing bolt passes through the waist-shaped hole and can slide along the waist-shaped hole relative to it.

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