Fixing clamp and welding device

Abstract

The utility model relates to the technical field of clamps, and particularly discloses a fixing clamp and a welding device, the fixing clamp is used for fixing a contact assembly, the contact assembly comprises a contact, the fixing clamp comprises a clamp carrier and a clamping mechanism, and the clamp carrier comprises a first limiting plate; the clamping mechanism comprises a swing arm assembly and an elastic piece, the swing arm assembly is pivoted with the clamp carrier, the swing arm assembly and the first limiting plate are arranged at intervals in the first direction, a clamping gap is defined by the swing arm assembly and the first limiting plate, the contact is inserted into the clamping gap, and the elastic piece enables the swing arm assembly to have the tendency of swinging relative to the clamp carrier. One end of the swing arm assembly tends to move towards the first limiting plate, and the first limiting plate and one end of the swing arm assembly are used for clamping a contact. When the fixing clamp is used for fixing the contact assembly, the fixing clamp replaces manual supporting of the contact, so that hands of workers can be prevented from being scalded, the welding quality is improved, and the working intensity of the workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fixture, especially the fixed clamp and welding device. BACKGROUND

[0002] The contact assembly of the surge protector usually includes a contact and a silver dot welded on the contact. The main purposes of this setting include: silver as a nonlinear resistance element has excellent conductivity and stability, which can ensure the safe and stable operation of the circuit under the condition of lightning surge and other surges. The nonlinear resistance element of silver can withstand the impact of high voltage and high current in the circuit, thereby protecting electronic devices from damage. Secondly, silver as a contact material withstands extremely high temperature and pressure during the operation of the surge protector. Silver has good conductivity, wear resistance and corrosion resistance, which makes it an ideal contact material. The silver contact can effectively improve the performance and stability of the surge protector.

[0003] Currently, the processing method of silver dot and contact is that the staff manually stacks the contact and silver dot on the lower electrode of the carbon rod welding machine, then presses the silver dot with the upper electrode, and then welds the silver dot and the contact into one. In this process, when the staff manually places and takes the contact, there is a risk of burning hands; the silver dot and the contact are not positioned, which can easily cause the silver dot and the contact to slide out of position, and the silver dot is skewed after welding and is unqualified; manually placing the product requires high operating skills and endurance of the staff, which does not meet the development trend of simple operation in the manufacturing industry.

[0004] Therefore, there is an urgent need for a fixed clamp and welding device to solve the above problems. INVENTION CONTENTS

[0005] The utility model aims at: provide fixed clamp and welding device, to solve the problem that staff manually supports the contact and silver dot for welding in the prior art, there is a problem of burning hands, poor welding quality and high work intensity of staff.

[0006] On the one hand, the utility model provides a fixed clamp for fixing a contact assembly, wherein the contact assembly includes a contact, and the fixed clamp includes:

[0007] A clamp carrier, the clamp carrier includes a first limiting plate;

[0008] A clamping mechanism including a swing arm assembly and a resilient member, the swing arm assembly is pivotally connected to the clamp carrier, the swing arm assembly and the first limiting plate are arranged around a clamping gap in a first direction, the clamping gap is used for inserting the contact, and the resilient member is used for driving one end of the swing arm assembly to be close to the first limiting plate to clamp the contact in the clamping gap.

[0009] As the preferred technical scheme of the fixed clamp, the swing arm assembly comprises a swing rod and a pressing roller, the swing rod is pivotally connected with the clamp carrier, one end of the swing rod close to the entrance of the clamping gap is pivotally connected with the pressing roller through a first pivot axis, the first pivot axis is arranged along a third direction, and under the reset action of the elastic member, the swing rod swings along the first direction to make the pressing roller abut against the contact.

[0010] As the preferred technical scheme of the fixed clamp, the contact comprises a top plate and two side plates arranged at two sides of the top plate.

[0011] The first limiting plate is used for abutting against one side plate, and the pressing roller is used for abutting against the other side plate.

[0012] As the preferred technical scheme of the fixed clamp, one end of the swing rod close to the entrance of the clamping gap comprises two rod members arranged in an up-down mode and spaced to form a containing cavity, and the pressing roller is arranged in the containing cavity and can rotate in the containing cavity.

[0013] The surface of the rod member close to the contact along the first direction is a limiting surface, and the pressing roller protrudes from the limiting surface along the first direction.

[0014] As the preferred technical scheme of the fixed clamp, the clamp carrier further comprises a support body, the first limiting plate is arranged on the support body, the side wall of the support body with the first limiting plate is concave to form a containing groove, the middle part of the swing arm assembly is pivotally connected with the support body, the other end of the swing arm assembly away from the entrance of the clamping gap is located in the containing groove, and the elastic member is arranged in the containing groove and drives the other end of the swing arm assembly to swing.

[0015] As the preferred technical scheme of the fixed clamp, the contact assembly further comprises a silver dot.

[0016] The fixed clamp further comprises a positioning assembly, the positioning assembly is arranged on the clamp carrier, the positioning assembly is arranged at the upper end of the clamping gap along the third direction, and the positioning assembly is used for fixing the relative position of the silver dot and the contact.

[0017] As the preferred technical scheme of the fixed clamp, the positioning assembly comprises a positioning plate, the positioning plate is arranged on the clamp carrier, the positioning plate is provided with a positioning groove for containing the silver dot, the positioning groove is arranged in the third direction corresponding to the contact in the clamping gap, so that the relative position of the silver dot and the contact in the plane along the first direction and the second direction is fixed.

[0018] As the preferred technical scheme of the fixed clamp, the positioning plate is provided with a waist-shaped hole, and the waist-shaped hole extends along a second direction.

[0019] The positioning assembly further comprises an adjusting bolt, which passes through the waist-shaped hole and is screwed with the clamp carrier.

[0020] As a preferred technical solution of the fixed clamp, the clamp carrier is provided with a sliding groove extending along the second direction, and the positioning plate is arranged in the sliding groove and is in sliding fit with the clamp carrier.

[0021] In another aspect, the utility model provides a welding device, including upper welding head, lower welding head and fixed clamp in any scheme above, the lower welding head extends into the clamping gap and is in abutment with the side of the contact far away from the silver point, the upper welding head includes first position and second position, in the first position, the upper welding head is arranged in interval with the silver point on the contact, in the second position, the upper welding head is in abutment with the silver point on the contact.

[0022] The utility model has the advantages of:

[0023] The utility model provides a fixed clamp and welding device, and the fixed clamp is used for fixing a contact assembly, and the welding device is used for welding a contact and a silver point. The fixed clamp comprises a clamp carrier and a clamping mechanism, the clamp carrier comprises a first limiting plate; the clamping mechanism comprises a swing arm assembly and an elastic piece, the swing arm assembly is pivotally connected to the clamp carrier, the swing arm assembly and the first limiting plate are separated from each other along a first direction and surround a clamping gap, a contact is inserted into the clamping gap, and the elastic piece enables the swing arm assembly to have a tendency to swing along the first direction relative to the clamp carrier, so that the swing arm assembly and the first limiting plate clamp the contact in the clamping gap at one end close to an entrance position of the clamping gap. When the fixed clamp is used, the contact is first inserted into the clamping gap, the swing arm assembly and the first limiting plate fix the contact under the action of the elastic piece, then the silver point is arranged on the contact, the lower welding head of the welding device extends into the clamping gap and is in abutment with the side of the contact far away from the silver point, the upper welding head is switched to the second position in abutment with the silver point on the contact, and the welding of the contact and the silver point can be realized. The fixed clamp replaces manual support of the contact, thereby avoiding the hands of workers from being scalded, improving welding quality and reducing the working strength of workers. BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 It is a structural schematic view of the fixed clamp in the utility model embodiment;

[0025] Fig. 2 It is an explosion schematic view of the fixed clamp in the utility model embodiment;

[0026] Fig. 3 It is a structural schematic view of the clamping mechanism in the utility model embodiment;

[0027] Fig. 4The utility model discloses a structure schematic view of clamp carrier in the embodiment.

[0028] In the drawing:

[0029] X, first direction, Y, second direction, Z, third direction,

[0030] 100, contact, 101, top plate, 102, side plate, 1021, through hole, 200, silver point,

[0031] 1, clamp carrier, 11, first limit board, 111, clamping gap, 12, support body, 121, sliding groove, 122, accommodating groove, 123, accommodating hole, 13, support plate, 14, second limit board, 15, installation groove,

[0032] 2, clamping mechanism, 21, swing arm assembly, 211, swing rod, 212, compression roller, 213, first rotating shaft, 22, elastic piece, 23, plug, 24, pivot shaft,

[0033] 3, positioning assembly, 31, positioning plate, 311, positioning groove, 312, waist type hole, 32, adjusting bolt. DETAILED DESCRIPTION

[0034] The technical scheme of the utility model will be described clearly and completely below in conjunction with the drawings, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the scope of protection of the utility model.

[0035] In the description of the utility model, it is necessary to explain that the orientation or position relation indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore, it can not be understood as the limitation of the utility model. In addition, the terms "first", "second" are only for the purpose of description, and can not be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the first feature is "above", "above" and "above" of the second feature, including the first feature is directly above and obliquely above the second feature, or just indicates that the horizontal height of the first feature is higher than the second feature. The first feature is "below", "below" and "below" of the second feature, including the first feature is directly below and obliquely below the second feature, or just indicates that the horizontal height of the first feature is less than the second feature.

[0036] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "installation", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication。For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0037] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0038] As Figs. 1-4 The utility model provides fixed clamp for fixing contact assembly, contact assembly includes contact 100, the fixed clamp includes clamp carrier 1 and clamping mechanism 2, clamp carrier 1 includes first limit board 11;Clamping mechanism 2 includes swing arm assembly 21 and elastic part 22, swing arm assembly 21 is pivoted with clamp carrier 1, swing arm assembly 21 is separated from first limit board 11 in along the first direction X and is surrounded to form a clamping gap 111, and contact 100 is inserted in clamping gap 111 along the second direction Y, and elastic part 22 makes swing arm assembly 21 have the tendency of swinging along the first direction X relative to clamp carrier 1, so that swing arm assembly 21 and first limit board 11 clamp contact 100 in clamping gap 111 in the end close to the entrance position of clamping gap 111.In the use of the fixed clamp for fixing contact assembly, first, contact 100 is inserted in clamping gap 111, under the action of elastic part 22, swing arm assembly 21 and first limit board 11 fix contact 100, subsequently, silver dot 200 is arranged on contact 100, and then the lower welding head of welding device can be inserted into clamping gap 111 and abut against the side of contact 100 away from silver dot 200, and the upper welding head is switched to the second position abutting against silver dot 200 on contact 100, so that the welding of contact 100 and silver dot 200 can be realized, the fixed clamp replaces the artificial support of contact 100, and then the staff's scalding can be avoided, the welding quality is improved, and the working strength of the staff is reduced.

[0039] Optionally, the clamp carrier 1 further comprises a support body 12 and a second limiting plate 14, the first limiting plate 11 and the second limiting plate 14 are fixedly arranged on the side wall of the support body 12 along the first direction X to form a mounting groove 15, the swing arm assembly 21 is arranged in the mounting groove 15 and is pivoted to the support body 12 through a pivot shaft 24, and the swing arm assembly 21 and the first limiting plate 11 form a clamping gap 111. The clamping gap 111 is located in the mounting groove 15. Therefore, the contact 100 is inserted into the clamping gap 111 along the second direction Y, which is equivalent to that the contact 100 is inserted into the mounting groove 15 of the clamp carrier 1. The pivot shaft 24 is arranged along the third direction Z. Specifically, the first direction X and the third direction Z are perpendicular.

[0040] Specifically, one end of the clamping gap 111 away from the support plate 12 along the second direction Y is an entrance position of the clamping gap 111, and the contact 100 is inserted into the clamping gap 111 from the entrance position of the clamping gap 111 along the second direction Y and approaches the support plate 12. Specifically, the first direction X, the second direction Y and the third direction Z are perpendicular to each other, and the first direction X and the second direction Y are both located in a horizontal plane.

[0041] Optionally, the swing arm assembly 21 comprises a swing rod 211 and a pressing roller 212, the swing rod 211 is pivoted to the clamp carrier 1, one end of the swing rod 211 is rotationally connected with the pressing roller 212 through a first rotation shaft 213, the axial direction of the first rotation shaft 213 is along the third direction Z, and the pressing roller 212 abuts against the contact 100. In this embodiment, during the process that the contact 100 is inserted into the clamping gap 111 along the second direction Y or pulled out from the clamping gap 111, the first limiting plate 11 abuts against one side of the contact 100, and the pressing roller 212 abuts against the other side of the contact 100, and the rolling friction between the pressing roller 212 and the contact 100 can effectively reduce the force required for the contact 100 to be inserted into the clamping gap 111 along the second direction Y or pulled out from the clamping gap 111, thereby reducing the working intensity of the worker, and at the same time, the rolling friction between the pressing roller 212 and the contact 100 can also effectively reduce the scratching of the contact 100.

[0042] In other embodiments, another pressing roller 212 can also be arranged on the first limiting plate 11, and the two pressing rollers 212 clamp the contact 100 from both sides of the contact 100, thereby effectively reducing the working intensity of the worker and avoiding scratching of the contact 100. Specifically, the pressing roller 212 can be made of rubber.

[0043] Optionally, the contact 100 comprises a top plate 101 and two side plates 102 arranged at two sides of the top plate 101, and the two side plates 102 are respectively provided with a through hole 1021; the contact 100 is inserted into the clamping gap 111 along the second direction Y, the first limiting plate 11 is used for abutting against one side plate 102, and the pressing roller 212 is used for abutting against the other side plate 102 and is opposite to the through hole 1021 on the abutting side plate 102, and in the embodiment, when the pressing roller 212 is opposite to the through hole 1021 on the abutting side plate 102, the swing rod 211 drives the pressing roller 212 to partially sink into the through hole 1021 under the action of the elastic member 22, and the arrangement can effectively limit the movement of the contact 100 relative to the clamp carrier 1 along the second direction Y and the third direction Z.

[0044] Optionally, the end of the swing rod 211 close to the entrance position of the clamping gap 111 comprises two rod members arranged upward and downward and spaced to form a containing cavity, and the pressing roller 212 is arranged in the containing cavity and can rotate in the containing cavity; the face of the rod member close to the contact 100 along the first direction X is a limiting face, and the pressing roller 212 protrudes from the limiting face along the first direction X. In the embodiment, the first rotating shaft 213 penetrates through the pressing roller 212 and the two rod members, so that the pressing roller 212 can rotate around the first rotating shaft 213 in the containing cavity.

[0045] Optionally, the middle part of the swing arm assembly 21 is pivotally connected with the clamp carrier 1, and the elastic member 22 has a tendency to drive the other end of the swing arm assembly 21 to swing. In the embodiment, the side wall of the supporting body 12 provided with the first limiting plate 11 is recessed with a containing groove 122 along the second direction Y, the other end of the swing arm assembly 21 is located in the containing groove 122, and the elastic member 22 is arranged in the containing groove 122 and drives the other end of the swing arm assembly 21 to swing.

[0046] For the mounting structure of the elastic member 22, the clamping mechanism 2 further comprises a plug 23, the side wall of the containing groove 122 along the first direction X is provided with a containing hole 123 extending along the first direction X, one end of the containing hole 123 is opposite to the swing arm assembly 21, the elastic member 22 is inserted into the containing hole 123, and the plug 23 is inserted into the containing hole 123, so that one end of the elastic member 22 is fixedly connected with the plug 23, and the other end is fixedly connected with the swing arm assembly 21. Specifically, the plug 23 is screwed with the supporting body 12.

[0047] Optionally, when the containing hole 123 is located between the swing arm assembly 21 and the first limiting plate 11, the elastic member 22 is a compression spring, and when the containing hole 123 is located on the side of the swing arm assembly 21 away from the first limiting plate 11, the elastic member 22 is a tension spring.

[0048] Optionally, the contact assembly further comprises a silver dot 200; the fixed clamp further comprises a positioning assembly 3 for fixing the relative position of the silver dot 200 and the contact 100. In this embodiment, the arrangement positions the relative position of the silver dot 200 and the contact 100, which can further avoid the mispositioning of the relative position of the silver dot 200 and the contact 100 when the silver dot 200 and the contact 100 are welded, and improve the qualified rate of the welding of the silver dot 200 and the contact 100.

[0049] Optionally, the positioning assembly 3 comprises a positioning plate 31, one end of the positioning plate 31 is provided with a positioning groove 311, the positioning plate 31 is arranged on the clamp carrier 1, so that the positioning groove 311 is opposite to the contact 100 in the clamping gap 111 along the third direction Z, and the silver dot 200 is arranged in the positioning groove 311, so that the silver dot 200 abuts against the contact 100 and the relative position is fixed. In this embodiment, after the positioning plate 31 is arranged on the clamp carrier 1, one end of the positioning plate 31 is arranged opposite to the contact 100 in the clamping gap 111 along the vertical direction, and at this time, the positioning groove 311 is arranged on one end of the positioning plate 31, and the silver dot 200 is arranged in the positioning groove 311, so that the silver dot 200 abuts against the contact 100 along the third direction Z and the relative position is fixed. Specifically, the positioning groove 311 is concave along the second direction Y, and the silver dot 200 is inserted into the positioning groove 311 along the second direction Y.

[0050] Optionally, the positioning plate 31 is provided with a waist-shaped hole 312 extending along the second direction Y; the positioning assembly 3 further comprises an adjusting bolt 32, the adjusting bolt 32 passes through the waist-shaped hole 312 and is screwed with the clamp carrier 1. In this embodiment, by screwing the adjusting bolt 32, the positioning plate 31 can slide relative to the clamp carrier 1 along the second direction Y, and the relative position of the positioning groove 311 and the contact 100 in the clamping gap 111 along the second direction Y can be adjusted. The fixed clamp can be adapted to the welding of the contact 100 and the silver dot 200 of different sizes.

[0051] Optionally, the clamp carrier 1 is provided with a sliding groove 121 extending along the second direction Y, and the positioning plate 31 is arranged in the sliding groove 121, and the positioning plate 31 is in sliding fit with the clamp carrier 1. In this embodiment, the side wall of the sliding groove 121 along the first direction X is in contact with the side wall of the positioning plate 31 along the first direction X, so that the side wall of the sliding groove 121 along the first direction X can limit the swing of the positioning plate 31 around the adjusting bolt 32, so as to avoid the failure of the relative position limitation of the contact 100 and the silver dot 200.

[0052] Optionally, the clamp carrier 1 further comprises a support plate 13, the support plate 13 is located in the clamping gap 111 and abuts against the side of the contact 100 away from the silver dot 200 along the third direction Z. In the embodiment, the support plate 13 functions to limit the contact 100 along the third direction Z, preventing the contact 100 from escaping from the clamping gap 111 under the action of its own gravity.

[0053] Optionally, the clamp carrier 1 is an integral molding. Specifically, the clamp carrier 1 is cast molding or machining molding or 3D printing molding, which can improve the manufacturing precision of the clamp carrier 1 and the machining efficiency of the clamp carrier 1.

[0054] The embodiment also provides a welding device, which comprises the upper welding head, the lower welding head and the fixed clamp in the above-mentioned scheme, the lower welding head extends into the clamping gap 111 and abuts against the side of the contact 100 away from the silver dot 200, and the upper welding head comprises a first position and a second position, at the first position, the upper welding head is arranged to be spaced apart from the silver dot 200 on the contact 100, and at the second position, the upper welding head is arranged to abut against the silver dot 200 on the contact 100. In the embodiment, the contact 100 is loaded into the clamping gap 111, the silver dot 200 is inserted into the positioning groove 311, the clamp carrier 1 is arranged between the upper welding head and the lower welding head, at this time, the lower welding head extends into the clamping gap 111 and abuts against the side of the contact 100 away from the silver dot 200, the upper welding head is arranged to be spaced apart from the silver dot 200 along the third direction Z at the first position, the upper welding head moves towards the silver dot 200 along the third direction Z when the upper welding head is switched from the first position to the second position, and the upper welding head abuts against the silver dot 200 along the third direction Z when the upper welding head is at the second position, so that the contact 100 and the silver dot 200 can be welded.

[0055] Obviously, the above-mentioned embodiments of the utility model are only examples for clearly explaining the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above-mentioned description. Here, all the embodiments are not enumerated. Any modification, equivalent replacement and improvement made in the spirit and principle of the utility model should be included in the protection scope of the utility model claims.

Claims

1. A fixture for securing a contact assembly, the contact assembly comprising a contact (100), characterized by, The fixed clamp comprises: a clamp carrier (1) comprising a first limiting plate (11); a clamping mechanism (2) comprising a swing arm assembly (21) and an elastic member (22), the swing arm assembly (21) is pivoted with the clamp carrier (1), the swing arm assembly (21) and the first limiting plate (11) surround a clamping gap (111) in a first direction (X), the clamping gap (111) is used for inserting the contact (100), the elastic member (22) is used for driving one end of the swing arm assembly (21) to be close to the first limiting plate (11) to clamp the contact (100) in the clamping gap (111).

2. The fixture clamp of claim 1, wherein, The swing arm assembly (21) comprises a swing rod (211) and a pressing roller (212), the swing rod (211) is pivoted with the clamp carrier (1), one end of the swing rod (211) close to the entrance position of the clamping gap (111) is rotationally matched with the pressing roller (212) through a first rotation shaft (213), the axial direction of the first rotation shaft (213) is along a third direction (Z), under the reset action of the elastic member (22), the swing rod (211) swings along the first direction (X) to make the pressing roller (212) abut against the contact (100).

3. The fixture clamp of claim 2, wherein, The contact (100) comprises a top plate (101) and two side plates (102) arranged at both sides of the top plate (101); The first limiting plate (11) is used for abutting against one of the side plates (102), and the pressing roller (212) is used for abutting against the other side plate (102).

4. The fixture clamp of claim 2, wherein, One end of the swing rod (211) close to the entrance position of the clamping gap (111) comprises two rod members arranged upward and downward and separated to form a containing cavity, and the pressing roller (212) is arranged in and rotatable in the containing cavity; The surface of the rod member close to the contact (100) along the first direction (X) is a limiting surface, and the pressing roller (212) protrudes from the limiting surface along the first direction (X).

5. The fixture clamp of claim 1, wherein, The clamp carrier (1) further comprises a support body (12), the first limiting plate (11) is arranged on the support body (12), the side wall of the support body (12) provided with the first limiting plate (11) is recessed with a containing groove (122), the middle part of the swing arm assembly (21) is pivoted with the support body (12), the other end of the swing arm assembly (21) away from the entrance position of the clamping gap (111) is located in the containing groove (122), and the elastic member (22) is arranged in the containing groove (122) and drives the other end of the swing arm assembly (21) to swing.

6. The fixture clamp of claim 1, wherein, The contact assembly further comprises a silver dot (200); The fixed clamp further comprises a positioning assembly (3), the positioning assembly (3) is arranged on the clamp carrier (1), the positioning assembly (3) is arranged on the upper end of the clamping gap (111) along the third direction (Z), and the positioning assembly (3) is used for fixing the relative position of the silver dot (200) and the contact (100).

7. The fixture clamp of claim 6, wherein, The positioning assembly (3) comprises a positioning plate (31) arranged on the clamp carrier (1), the positioning plate (31) is provided with a positioning groove (311) for accommodating a silver dot (200), the positioning groove (311) is arranged in correspondence with the contact (100) in the clamping gap (111) along the third direction (Z) to fix the relative position of the silver dot (200) and the contact (100).

8. The fixture clamp of claim 7, wherein, The positioning plate (31) is provided with a waist-shaped hole (312) extending along the second direction (Y); The positioning assembly (3) further comprises an adjusting bolt (32) penetrating through the waist-shaped hole (312) and being screwed with the clamp carrier (1).

9. The fixture clamp of claim 8, wherein, The clamp carrier (1) is provided with a sliding groove (121) extending along the second direction (Y), and the positioning plate (31) is arranged in the sliding groove (121) and is in sliding fit with the clamp carrier (1).

10. A welding device comprising an upper welding head, a lower welding head and a fixture according to any one of claims 1-9, characterized in that, The lower welding head extends into the clamping gap (111) and abuts against the side of the contact (100) away from the silver dot (200), and the upper welding head comprises a first position and a second position, at the first position, the upper welding head is arranged in interval with the silver dot (200) on the contact (100), and at the second position, the upper welding head is arranged in abutment with the silver dot (200) on the contact (100).

Images