Clamping device for brain electrode welding

Abstract

The utility model relates to the technical field of electroencephalogram electrode production, in particular to a clamping device for welding an electroencephalogram electrode, which comprises a base, an electrode holder assembly, a first electrode holder, a second electrode holder, a first electrode holder, a second electrode holder, a second electrode holder and a third electrode holder, the base is provided with a positioning area, and the electrode holder assembly can be mounted in the positioning area or separated from the positioning area in a reciprocating manner along a first direction; a support member connected to the base; and the positioning component is connected to the supporting component and can reciprocate along a first direction relative to the supporting component. The electrode holder assembly and the connecting buckle in the brain electrode are circumferentially positioned through the base and the positioning component respectively, the positioning component can automatically and finely adjust the circumferential position of the connecting buckle, the axis of the electrode holder assembly and the axis of the connecting buckle are kept coincident during welding, in addition, the positioning component only allows reciprocating motion in one direction, and the welding precision is improved. Operation is convenient, the axis can be kept unchanged all the time, and particularly the repeated precision of welded products can be achieved when the electrode base assembly and the connecting buckle are assembled and disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of electroencephalogram (EEG) electrode production, in particular to a clamping device for EEG electrode welding. Background Art

[0002] Dry EEG electrodes are widely used due to their ease of use, such as Figure 1 As shown, the brain electrode 100 includes an electrode holder assembly 110 and a connecting buckle 120. The connecting buckle 120 and the electrode holder assembly 110 are fixed together by welding. At present, in actual production, the staff places the connecting buckle 120 on the electrode holder assembly 110 and then directly welds it. Due to the lack of a dedicated clamping device, it is easy for the connecting buckle 120 and the electrode holder assembly 110 to have a slight misalignment during welding, especially the axis of the connecting buckle 120 and the electrode holder assembly 110 do not match the axis position, which leads to low welding quality.

[0003] This welding misalignment may lead to disadvantages such as poor electrical connection between the electrode holder assembly 110 and the connecting buckle 120, weakened mechanical strength, and difficulty in installation when assembled with other components. Therefore, the welding quality should be strictly controlled during welding to ensure that the product meets the design requirements and usage needs. Utility Model Content

[0004] In view of the technical problems existing in the prior art of brain electrode welding, the first aspect of the present invention provides a clamping device for brain electrode welding, comprising:

[0005] A base, wherein a positioning area is provided on the base, and the electrode seat assembly can be installed in or detached from the positioning area so as to reciprocate along a first direction;

[0006] a support member connected to the base;

[0007] a positioning member connected to the support member and capable of reciprocating relative to the support member in a first direction so that the lower end of the positioning member moves to a first position or a second position;

[0008] In which, the lower end of the positioning component is configured to be able to circumferentially limit the connecting buckle. When the positioning component moves from the second position to the first position, the connecting buckle and the electrode seat assembly fit together, and the axes of the connecting buckle and the electrode seat assembly coincide, and the axes of the connecting buckle and the electrode seat assembly are parallel to the first direction.

[0009] Preferably, a positioning cavity is provided at the bottom of the positioning component, and the positioning cavity is constructed with a cross-section that is the same as the maximum cross-sectional size of the connecting buckle. When the positioning component moves from the second position to the first position, the inner side surface of the positioning cavity contacts the outer side surface of the connecting buckle and forces the connecting buckle to move to the target position.

[0010] Preferably, the positioning component is constructed as a rod, and the rod and the support component include a first contact portion and a second contact portion, and the first contact portion and the second contact portion define a sliding direction of the rod relative to the support component.

[0011] Preferably, an elastic member is provided between the positioning member and the supporting member, and the elastic member has a tendency to keep the positioning member moving in the direction of the first position, so that the connecting buckle and the electrode seat assembly can keep close contact with each other.

[0012] Preferably, the outer wall of the rod is provided with a first protruding structure, and the elastic member includes a spring, which is arranged between the first protruding structure and the supporting member. When the rod moves from the first position to the second position, the spring is compressed.

[0013] Preferably, the supporting component is provided with a limiting groove, the limiting groove is downwardly opened with a through groove connected thereto, the outer wall of the positioning component is provided with a second protruding structure, and the positioning component is configured to be able to rotate relative to the supporting component around the axis of the rod, when the positioning component moves upward, the second protruding structure can enter the limiting groove through the through groove and keep the positioning component in the second position.

[0014] Preferably, the second protruding structure is constructed as a columnar structure perpendicular to the first direction, and the through-slot is configured so that the positioning component allows the second protruding structure to pass through the through-slot within a predetermined angle range.

[0015] Preferably, the positioning area includes a plurality of positioning holes that cooperate with the electrode needles at the lower end of the electrode seat assembly.

[0016] Preferably, the base includes a base body and a mounting seat, the base body is provided with a mounting groove, the mounting seat is detachably mounted in the mounting groove along a first direction, and the upper surface of the mounting seat is provided with the positioning hole.

[0017] Preferably, a positioning structure is provided at the bottom of the mounting groove, a positioning protrusion is provided on the upper end face of the positioning structure, the diameter of the mounting groove is larger than the outer diameter of the mounting seat, and a positioning recess is provided at the bottom of the mounting seat. After the mounting seat is installed in the mounting groove, the positioning recess and the positioning protrusion engage with each other.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] The utility model realizes circumferential positioning of the electrode seat assembly and the connecting buckle in the brain electrode through the base and the positioning component respectively. The positioning component can automatically fine-tune the circumferential position of the connecting buckle, so that the axis of the electrode seat assembly and the connecting buckle are kept coincident during welding. In addition, the positioning component is only allowed to reciprocate in one direction, which is not only convenient to operate, but also can always keep the axis unchanged. In particular, it can achieve the repeatability accuracy of the welded product when loading and unloading the electrode seat assembly and the connecting buckle, so that the product meets the design and use requirements and improves the yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are not intended to be drawn to scale. In the accompanying drawings, each identical or nearly identical component shown in various figures may be represented by the same reference numeral. For the sake of clarity, not every component is labeled in every figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, in which:

[0021] Figure 1 This is a schematic diagram of the structure of a dry EEG electrode;

[0022] Figure 2 This is a schematic structural diagram of a clamping device for brain electrode welding shown in the present invention;

[0023] Figure 3 It is a schematic diagram of the positioning component shown in the utility model in the second position;

[0024] Figure 4 It is a structural schematic diagram of the limit slot shown in the utility model;

[0025] Figure 5 It is a structural schematic diagram of the base shown in the utility model;

[0026] Figure 6 It is a top view of the base shown in the utility model;

[0027] Figure 7 yes Figure 6 Schematic diagram of the structure in the AA direction;

[0028] Figure 8 a is a side view of the positioning component shown in the utility model in the second position;

[0029] Figure 8 b is a side view of the positioning component shown in the present invention in the first position. DETAILED DESCRIPTION

[0030] In order to better understand the technical content of the present invention, specific embodiments are given and described below with reference to the accompanying drawings.

[0031] like Figure 1As shown, the EEG electrode 100 includes an electrode base assembly 110 and a connecting buckle 120. The electrode base assembly 110 includes an electrode base 111 and electrode needles 112. During manufacturing, each electrode needle 112 is first installed on the lower side of the electrode base 111. After each electrode needle 112 is installed, the connecting buckle 120 is welded to the upper side of the electrode base 111. When welding the electrode base assembly 110 and the connecting buckle 120, the staff always places the electrode buckle 120 on the upper end surface of the electrode base assembly 110 and then directly welds them. Due to the lack of positioning measures between the electrode base assembly 110 and the connecting buckle 120, the connecting buckle 120 and the electrode base assembly 110 are easily misaligned, which ultimately leads to low welding quality.

[0032] Therefore, the present invention proposes a clamping device for brain electrode welding, which aims to solve the problem of misalignment between the connecting buckle 120 and the electrode seat assembly 110 during welding. The clamping device for brain electrode welding mainly includes a base 200, a supporting component 300 and a positioning component 400. The base 200 positions the electrode seat assembly 110, and the positioning component 400 positions the connecting buckle 120, so that the electrode seat assembly 110 and the connecting buckle 120 keep their axes coincident during welding, and the welded product meets the design requirements and actual needs.

[0033] like Figure 2 and Figure 3 As shown, a positioning area is provided on the base 200, and the electrode seat assembly 110 can be installed in the positioning area or detached from the positioning area by reciprocating movement along the first direction; the support component 300 is connected to the base 200; the positioning component 400 is connected to the support component 300, and can reciprocate along the first direction relative to the support component 300, so that the lower end of the positioning component 400 moves to the first position or the second position.

[0034] It can be understood that the two components to be welded, the electrode holder assembly 110 and the connecting buckle 120 , are positioned by the base 200 and the positioning component 400 respectively.

[0035] Among them, the lower end of the positioning component 400 is configured to be able to circumferentially limit the connecting buckle 120. When the positioning component 400 moves from the second position to the first position, the connecting buckle 120 and the electrode seat assembly 110 fit together, and the axes of the connecting buckle 120 and the electrode seat assembly 110 coincide, and the axes of the connecting buckle 120 and the electrode seat assembly 110 are parallel to the first direction.

[0036] In this way, when the axis of the positioning area coincides with the axis of the positioning component 400, the axes of the electrode holder assembly 110 and the connecting buckle 120 positioned and assembled through the base 200 and the positioning component 400 also coincide, that is, the axes of the four structures of the positioning area, the electrode holder assembly 110, the connecting buckle 120 and the positioning component 400 coincide to ensure the accuracy of welding.

[0037] like Figure 2 As shown, the positioning component 400 is in the first position. At this time, the positioning component 400 positions the connecting buckle 120. By setting the positioning component 400 and the base 200 to have a certain positional relationship, the connecting buckle 120 and the electrode seat assembly 110 can be repeatedly achieved to have a consistent positional relationship during welding, especially the axis of the connecting buckle 120 coincides with the axis of the electrode seat assembly 110.

[0038] like Figure 3 As shown, the positioning component 400 is in the second position. At this time, a space is reserved below the positioning component 400 for the operator to remove the welded brain electrode 100 from the base 200 and replace the new brain electrode 100 accessories.

[0039] In an optional embodiment, a positioning cavity is provided at the bottom of the positioning component 400, and the positioning cavity is constructed with a cross-section that is the same as the maximum cross-sectional dimension of the connecting buckle 120. When the positioning component 400 moves from the second position to the first position, the inner side surface of the positioning cavity contacts the outer side surface of the connecting buckle 120 and forces the connecting buckle 120 to move to the target position.

[0040] It should be understood that since the cross-section of the positioning cavity is the same as the maximum cross-sectional dimension of the connecting buckle 120, when the positioning component 400 moves to the first position, the positioning cavity is completely sheathed on the outside of the head of the connecting buckle 120. At this time, the axis of the connecting buckle 120 coincides with the axis of the positioning cavity, thereby achieving the purpose of circumferential limitation of the connecting buckle 120.

[0041] Specifically, since the head of the connecting buckle 120 is an arc surface or a spherical surface, when the connecting buckle 120 is placed in a certain range area on the electrode holder assembly 110, when the positioning component 400 approaches the first position, the inner wall of the positioning cavity will squeeze the head of the connecting buckle 120 and gradually force the connecting buckle 120 to finally move to the target position, that is, the position where the axis of the connecting buckle 120 and the axis of the electrode holder assembly 110 coincide.

[0042] In an optional embodiment, in order to more accurately define the moving direction of the positioning component 400, the positioning component 400 is constructed as a rod, and the rod and the support component 300 include a first contact portion and a second contact portion, and the sliding direction of the rod relative to the support component 300 is defined by the first contact portion and the second contact portion.

[0043] Thus, the first contact portion and the second contact portion are linearly distributed, and the connecting line of the first contact portion and the second contact portion is parallel to the first direction, ie, the axis direction of the positioning component 400 . Therefore, the positioning component 400 can only slide along the first direction.

[0044] Specifically, the positioning component 400 is a cylindrical rod with a positioning cavity provided at the lower end and an enlarged portion 410 provided at the upper end. The enlarged portion 410 is convenient for an operator to hold.

[0045] Furthermore, an elastic member 500 is provided between the positioning member 400 and the supporting member 300 . The elastic member 500 has a tendency to keep the positioning member 400 moving toward the first position, so that the connecting buckle 120 and the electrode holder assembly 110 can maintain close contact with each other.

[0046] It can be understood that since the welding equipment is close to the gap between the connecting buckle 120 and the electrode holder assembly 110 during welding, and may cause the connecting buckle 120 and the electrode holder assembly 110 to deviate from the axis or separate from each other, the elastic member 500 maintains the connecting buckle 120 and the electrode holder assembly 110 in a state of mutual fit, which helps the connecting buckle 120 and the electrode holder assembly 110 to remain in close fit after welding, resulting in a high-quality product.

[0047] In an optional embodiment, if Figure 2 As shown, the outer wall of the rod is provided with a first protruding structure 610, and the elastic member 500 includes a compression spring, which is arranged between the first protruding structure 610 and the supporting member 300. When the rod moves from the first position to the second position, the spring is compressed.

[0048] In this way, the elastic potential energy generated when the spring is compressed can keep the rod member exerting pressure on the base 200, and the connecting buckle 120 and the electrode holder assembly 110 are in close contact with each other when in the state to be welded.

[0049] Further, combined Figure 4 As shown, the support component 300 is provided with a limiting groove 330, and the limiting groove 330 is downwardly opened with a through groove 320 connected thereto, and the outer wall of the positioning component 400 is provided with a second protruding structure 620, and the positioning component 400 is configured to be able to rotate relative to the support component 300 around the axis of the rod. When the positioning component 400 moves upward, the second protruding structure 620 can enter the limiting groove 330 through the through groove 320 and keep the positioning component 400 in the second position.

[0050] In this way, after the welding of the electrode seat assembly 110 and the connecting buckle 120 of the current brain electrode 100 is completed, the positioning component 400 can be moved upward from the first position and maintained in the second position. At this time, the welded brain electrode 100 can be taken out and the new electrode seat assembly 110 and the connecting buckle 120 to be welded can be replaced. During this process, since the position of the positioning component 400 is fixed, the operator can use both hands to perform the replacement process of the brain electrode 100.

[0051] In an optional embodiment, the second protruding structure 620 is constructed as a columnar structure perpendicular to the first direction, and the through-slot 320 is configured so that the positioning member 400 allows the second protruding structure 620 to pass through the through-slot 320 within a predetermined angle range.

[0052] Combine Figure 4 As shown, the through groove 320 is a strip groove, and its width only allows the columnar second protrusion structure 620 to pass through when it is in the same direction as the length of the strip groove, that is, when the second protrusion structure 620 corresponds to the position of the through groove 320, it can pass through the through groove 320. In actual operation, the angle of the positioning component 400 is controlled so that the second protrusion structure 620 corresponds to the position of the through groove 320, and the positioning component 400 is pulled upward until the second protrusion structure 620 passes through the through groove 320 and enters the limiting groove 330, and then the positioning component 400 is rotated a certain angle so that the angles of the second protrusion structure 620 and the through groove 320 do not correspond. At this time, the positioning component 400 is stably in the second position.

[0053] like Figure 8 As shown in a and 8b, in a specific embodiment, the support component 300 is roughly designed as an F-shaped structure, and the positioning component 400 passes through its two horizontally arranged support arms. When the positioning component 400 is in the first position, the second protruding structure 620 does not contact the support surface 310 of the lower support arm, and the spring is compressed between the first protruding structure 610 and the lower support arm. When the positioning component 400 is in the second position, the second protruding structure 620 is in the limiting groove 330, and the spring extends between the first protruding structure 610 and the lower support arm. This structural design is compact and highly reliable.

[0054] Combine Figures 6 and 7 As shown, the positioning area includes a plurality of positioning holes 200a that cooperate with the electrode needles 112 at the lower end of the electrode base assembly 110. Thus, when the electrode base assembly 110 is placed in the positioning area and each electrode needle 112 is inserted into the positioning hole 200a, the electrode base assembly 110 and the base 200 have a fixed positional relationship.

[0055] In an optional embodiment, if Figure 6 As shown, the base 200 includes a base body 210 and a mounting seat 220. The base body 210 is provided with a mounting groove 211. The mounting seat 220 is detachably mounted in the mounting groove 211 along a first direction. The upper surface of the mounting seat 220 is provided with a positioning hole 200a.

[0056] With such a design, the mounting seat 220 can be separated from the base body 210 , which facilitates replacement of the mounting seat 220 to match electrode seat assemblies 110 of different types and sizes.

[0057] In a preferred embodiment, a positioning structure 211a is provided at the bottom of the mounting groove 211, and a positioning protrusion 211b is provided on the upper end surface of the positioning structure 211a. The diameter of the mounting groove 211 is larger than the outer diameter of the mounting seat 220, and a positioning recess is provided at the bottom of the mounting seat 220. After the mounting seat 220 is installed in the mounting groove 211, the positioning recess and the positioning protrusion 211b are engaged with each other.

[0058] Combine Figure 7 As shown, the upper end of the mounting seat 220 is slightly higher than the upper end surface of the base body 210. This design facilitates the removal and placement of the mounting seat 220. When disassembling, it can be directly pulled out upwards. When installing, it can be directly put downwards. The circumferential positioning can be ensured by the mutual engagement of the positioning recess and the positioning protrusion 211b.

[0059] Furthermore, the positioning structure 211a is threadedly connected to the mounting groove 211, so that the positioning structure 211a can be disassembled by rotating it, which makes it easy to clean the mounting groove 211 and avoids the accumulation of debris between the bottom and side surfaces of the mounting groove.

[0060] While the present invention has been described above with reference to preferred embodiments, this is not intended to limit the present invention. Persons skilled in the art will readily appreciate that various modifications and variations may be made without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be determined by the claims.

Claims

1. A clamping device for brain electrode welding, characterized in that: include: A base (200), wherein a positioning area is provided on the base (200), and the electrode seat assembly (110) can be installed in the positioning area or detached from the positioning area by reciprocating movement along a first direction; a supporting member (300) connected to the base (200); a positioning component (400) connected to the supporting component (300) and capable of reciprocating relative to the supporting component (300) along a first direction so that the lower end of the positioning component (400) moves to a first position or a second position; The lower end of the positioning component (400) is configured to circumferentially limit the connecting buckle (120). When the positioning component (400) moves from the second position to the first position, the connecting buckle (120) and the electrode seat assembly (110) fit together, and the axes of the connecting buckle (120) and the electrode seat assembly (110) coincide with each other. The axes of the connecting buckle (120) and the electrode seat assembly (110) are parallel to the first direction.

2. The clamping device for brain electrode welding according to claim 1, characterized in that: A positioning cavity is provided at the bottom of the positioning component (400), and the positioning cavity is constructed with a cross-section having the same size as the maximum cross-section of the connecting buckle (120). When the positioning component (400) moves from the second position to the first position, the inner side surface of the positioning cavity contacts the outer side surface of the connecting buckle (120), and forces the connecting buckle (120) to move to the target position.

3. The clamping device for brain electrode welding according to claim 1, characterized in that: The positioning component (400) is constructed as a rod, and the rod and the support component (300) include a first contact portion and a second contact portion, and the first contact portion and the second contact portion define the sliding direction of the rod relative to the support component (300).

4. The clamping device for brain electrode welding according to claim 3, characterized in that: An elastic member (500) is provided between the positioning member (400) and the supporting member (300), and the elastic member (500) has a tendency to keep the positioning member (400) moving toward the first position, so that the connecting buckle (120) and the electrode seat assembly (110) can be kept in close contact with each other.

5. The clamping device for brain electrode welding according to claim 4, characterized in that: The outer wall of the rod is provided with a first protruding structure (610), and the elastic member (500) includes a spring, which is arranged between the first protruding structure (610) and the supporting member (300). When the rod moves from the first position to the second position, the spring is compressed.

6. The clamping device for brain electrode welding according to claim 1, characterized in that: The supporting component (300) is provided with a limiting groove (330), and the limiting groove (330) is downwardly provided with a through groove (320) connected thereto. The outer wall of the positioning component (400) is provided with a second protruding structure (620), and the positioning component (400) is configured to be rotatable relative to the supporting component (300) around the axis of the rod. When the positioning component (400) moves upward, the second protruding structure (620) can enter the limiting groove (330) through the through groove (320) and keep the positioning component (400) in the second position.

7. The clamping device for brain electrode welding according to claim 6, characterized in that: The second protruding structure (620) is constructed as a columnar structure perpendicular to the first direction, and the through-slot (320) is configured as a positioning component (400) to allow the second protruding structure (620) to pass through the through-slot (320) within a predetermined angle range.

8. The clamping device for brain electrode welding according to any one of claims 1 to 7, characterized in that: The positioning area includes a plurality of positioning holes (200a) that cooperate with the electrode needles (112) at the lower end of the electrode seat assembly (110).

9. The clamping device for brain electrode welding according to claim 8, characterized in that: The base (200) comprises a base body (210) and a mounting seat (220), wherein the base body (210) is provided with a mounting groove (211), and the mounting seat (220) is detachably mounted in the mounting groove (211) along a first direction, and the upper surface of the mounting seat (220) is provided with the positioning hole (200a).

10. The clamping device for brain electrode welding according to claim 9, characterized in that: A positioning structure (211a) is provided at the bottom of the mounting groove (211), and a positioning protrusion (211b) is provided on the upper end surface of the positioning structure (211a). The diameter of the mounting groove (211) is larger than the outer diameter of the mounting seat (220), and a positioning recess is provided at the bottom of the mounting seat (220). After the mounting seat (220) is installed in the mounting groove (211), the positioning recess and the positioning protrusion (211b) are engaged with each other.

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