Jig for inductor spot welding

Abstract

The utility model discloses a jig for inductor spot welding, which comprises an upper template and a lower template which can be closed or separated from each other, the top surface of the lower template is provided with two parallel first placing grooves and an accommodating groove positioned between the two first placing grooves, and the two sides of the accommodating groove are provided with second placing grooves; the extending direction of the second placing grooves is perpendicular to the extending direction of the first placing grooves, one ends of the two second placing grooves communicate with the containing groove, and the other ends of the two second placing grooves communicate with the two first placing grooves correspondingly; a lower through hole penetrating through the lower die plate is formed in the position, communicated with the second placing groove, in the first placing groove, and an upper through hole corresponding to the lower through hole is formed in the upper die plate; notches are formed in the two side walls of the end, communicated with the first containing groove, of the second containing groove correspondingly, and heat-resisting blocks are detachably fixed in the notches. According to the utility model, easily damaged positions on the jig can be replaced without replacing the whole jig, so that the service life of the jig is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of inductance manufacturing, in particular to a jig for inductance spot welding. Background Art

[0002] In the prior art, before the inductor is formed, the inductor coil needs to be spot welded to the sheet, and then the iron powder is put into the mold to produce the formed inductor. In the process of spot welding the inductor coil to the sheet, a special jig is used. For example, the Chinese utility model patent with announcement number CN216177512U discloses a jig plate for inductor spot welding. Due to the high temperature of the welding head, after long-term use, the side wall of the second placement groove near the first placement groove is easily damaged under high temperature. Once this position is damaged, the entire jig can only be replaced, resulting in a short service life of the entire jig. Utility Model Content

[0003] The utility model provides a jig for induction spot welding, which can replace easily damaged positions on the jig without replacing the entire jig, thereby extending the service life of the jig.

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

[0005] An embodiment of the utility model provides a jig for induction spot welding, comprising an upper template and a lower template which can be molded together or separated from each other, the top surface of the lower template is provided with two parallel first placement grooves and a receiving groove located between the two first placement grooves, second placement grooves are provided on both sides of the receiving grooves, the extension direction of the second placement grooves is perpendicular to the extension direction of the first placement grooves, one end of the two second placement grooves are connected with the receiving grooves, and the other ends of the two second placement grooves are respectively connected with the two first placement grooves; a lower through hole passing through the lower template is provided at a position in the first placement groove that is connected with the second placement groove, and an upper through hole corresponding to the lower through hole is provided on the upper template; both side walls of the end of the second placement groove that is connected with the first placement groove are provided with notches, and a heat-resistant block is detachably fixed in the notch.

[0006] In some embodiments, the notch penetrates to the bottom surface of the lower template, and the heat-resistant block can be pulled out from the bottom surface of the lower template.

[0007] In some embodiments, the bottom surface of the upper template is provided with multiple upper magnetic parts, and the top surface of the lower template is provided with multiple lower magnetic parts compatible with the upper magnetic parts. When the upper template and the lower template are molded together, the upper magnetic parts and the lower magnetic parts are adsorbed to each other.

[0008] In some embodiments, positioning blocks are provided at both ends of the upper template, and two upwardly protruding protrusions are provided at both ends of the lower template, and a positioning groove is formed between the two protrusions. When the upper template and the lower template are molded together, the two positioning blocks are respectively inserted into the two positioning grooves.

[0009] In some embodiments, a protruding limiting column is provided on the bottom wall of the receiving groove, and the inductor coil is used to be sleeved on the limiting column.

[0010] In some embodiments, the height of the second placement groove on one side of the accommodating groove is greater than the height of the second placement groove on the other side of the accommodating groove.

[0011] In some embodiments, a plurality of protruding pressing blocks are disposed on the bottom surface of the upper template, and when the upper template and the lower template are molded together, the pressing blocks are embedded in the second placement grooves with a relatively low height.

[0012] The utility model has at least the following beneficial effects: the utility model is provided with notches on both side walls at the end where the second placement groove is connected to the first placement groove, and a heat-resistant block is detachably fixed in the notch. The heat-resistant block is more resistant to high temperatures than other positions of the lower template, and the high temperature of the welding head is not likely to cause damage to the heat-resistant block. Even if the heat-resistant block is damaged, the heat-resistant block can be replaced without replacing the entire jig, thereby extending the service life of the jig. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the structure of an induction spot welding jig in one embodiment of the utility model when the mold is closed;

[0014] Figure 2 This is a schematic diagram of the structure of the upper template and the lower template when they are separated according to an embodiment of the utility model;

[0015] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0016] Figure 4 The utility model is a schematic structural diagram of an upper template according to an embodiment of the present invention.

[0017] Wherein, the accompanying drawings are marked as follows:

[0018] The lower template 100, the lower through hole 101, the first placement groove 110, the second placement groove 120, the accommodating groove 130, the limiting column 131, the heat-resistant block 140, the lower magnetic member 150, the protrusion 160, and the positioning groove 161;

[0019] Upper template 200 , upper through hole 201 , upper magnetic member 210 , positioning block 220 , pressing block 230 . DETAILED DESCRIPTION

[0020] The utility model provides the following description with reference to the accompanying drawings to help fully understand the various embodiments of the utility model as defined by the claims and their equivalents. The description includes various specific details to help understanding, but these details should be regarded as exemplary only. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the utility model.

[0021] In the description of the present invention, descriptions of orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They 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 should not be understood as a limitation on the present invention.

[0022] It will be understood that when one element (eg, a first element) is “connected” to another element (eg, a second element), the element may be directly connected to the other element or an intervening element (eg, a third element) may be present between the element and the other element.

[0023] The embodiment of the utility model provides a jig for induction spot welding, such as Figure 1-4As shown, it includes an upper template 200 and a lower template 100. The upper template 200 and the lower template 100 can be molded together to spot weld the coil and the sheet. After the spot welding is completed, the upper template 200 and the lower template 100 are separated from each other to take out the spot welded product. The top surface of the lower template 100 is provided with two parallel first placement grooves 110 and a receiving groove 130 located between the two first placement grooves 110. The receiving groove 130 is used to place the coil. The two sides of the receiving groove 130 are provided with second placement grooves 120. The extension direction of the second placement groove 120 is perpendicular to the extension direction of the first placement groove 110. One end of the two second placement grooves 120 is connected to the receiving groove 130, and the other end of the two second placement grooves 120 is respectively connected to the two first placement grooves 110. A lower through hole 101 penetrating the lower template 100 is provided at a position in the first placement groove 110 that is connected to the second placement groove 120. The lower through hole 101 is close to the two side walls of the second placement groove 120. An upper through hole 201 corresponding to the lower through hole 101 is provided on the upper template 200. Specifically, the position, number and size of the upper through hole 201 correspond to the position, number and size of the lower through hole 101. During electric welding, the coil is placed in the receiving groove 130, the two electrode sheets connected to the coil are placed in the two second placement grooves 120 respectively, the two material sheets are placed in the two first placement grooves 110 respectively, and the two electrode sheets are placed on the two material sheets respectively. Then the upper template 200 and the lower template 100 are molded together, and the spot welding head will pass through the upper through hole 201 to weld the parts where the electrode sheet and the material sheet contact each other. This position is located above the lower through hole 101, so it is easy to cause the two side walls of the end where the second placement groove 120 is connected to the first placement groove 110 to be burned. In this regard, in this embodiment, both side walls at the end where the second placement groove 120 is connected to the first placement groove 110 are provided with notches, in which a heat-resistant block 140 is detachably fixed, and the heat-resistant block 140 fills the notch so that the side wall of the second placement groove 120 can continue to extend toward the first placement groove 110. The heat-resistant block 140 is more resistant to high temperatures than other positions of the lower template 100, and the high temperature of the welding head is not likely to cause damage to the heat-resistant block 140. Even if the heat-resistant block 140 is damaged, since the heat-resistant block 140 is detachable, only the damaged heat-resistant block 140 can be replaced without replacing the entire fixture, thereby extending the service life of the entire fixture.

[0024] In some embodiments, the notch runs through the bottom surface of the lower template 100, and the heat-resistant block 140 can be pulled out from the bottom surface of the lower template 100, and a new heat-resistant block 140 is also inserted into the notch from the bottom surface of the lower template 100, so that the heat-resistant block 140 can be easily replaced. The size of the heat-resistant block 140 can be slightly larger than the size of the notch, so that the heat-resistant block 140 can be fixed in the notch to prevent it from shaking at will.

[0025] In some embodiments, the bottom surface of the upper template 200 is provided with a plurality of upper magnetic parts 210, and the top surface of the lower template 100 is provided with a plurality of lower magnetic parts 150 adapted to the upper magnetic parts 210. Specifically, the number and position of the lower magnetic parts 150 correspond to the number and position of the upper magnetic parts 210, respectively, so that the upper magnetic parts 210 and the lower magnetic parts 150 can correspond to each other. When the upper template 200 and the lower template 100 are molded together, the upper magnetic parts 210 and the lower magnetic parts 150 are adsorbed on each other, so that the upper template 200 and the lower template 100 are adsorbed and fixed together, and will not be detached at will. Under the action of a certain external force, the upper magnetic parts 210 and the lower magnetic parts 150 can be separated from each other, thereby facilitating the mold closing and separation of the upper template 200 and the lower template 100.

[0026] Furthermore, positioning blocks 220 are provided at both ends of the upper template 200, and two upwardly protruding protrusions 160 are provided at both ends of the lower template 100, and a positioning groove 161 is formed between the two protrusions 160. When the upper template 200 and the lower template 100 are molded, the two positioning blocks 220 are respectively inserted into the two positioning grooves 161. On the one hand, the cooperation between the positioning blocks 220 and the positioning grooves 161 can limit the lateral movement of the upper template 200 on the lower template 100. On the other hand, this can ensure that the upper template 200 and the lower template 100 are accurately molded.

[0027] In some embodiments, the bottom wall of the accommodating groove 130 is provided with a protruding limiting column 131, and the inductor coil is used to be sleeved on the limiting column 131 to limit the movement of the inductor coil so that it maintains a set position to ensure smooth welding of the electrode sheet and the material sheet.

[0028] In some embodiments, the height of the second placement groove 120 on one side of the accommodating groove 130 is greater than the height of the second placement groove 120 on the other side of the accommodating groove 130. Figure 3 For example, the height of the second placement slot 120 located at the upper position is greater than the height of the second placement slot 120 located at the lower position. Correspondingly, the height of the first placement slot 110 connected to the second placement slot 120 with the higher height is also greater than the height of the first placement slot 110 connected to the second placement slot 120 with the lower height. This is because the flat coil is spirally wound, and its two ends are misaligned in the axial direction. After the flat coil is placed in the receiving slot, the two electrode sheets connected to it are naturally at different heights. In this embodiment, the two second placement slots 120 are set at different heights to adapt to the situation of the flat coil.

[0029] In some embodiments, a plurality of protruding pressing blocks 230 are provided on the bottom surface of the upper template 200. When the upper template 200 and the lower template 100 are molded together, the pressing blocks 230 are inserted into the second placement groove 120 with a relatively low height to stably press the electrode sheet in the second placement groove 120.

[0030] The terms and words used in the above description and claims are not limited to the literal meanings, but are only used by the applicant to enable a clear and consistent understanding of the utility model. Therefore, it should be clear to those skilled in the art that the above description of various embodiments of the utility model is provided only for illustration, and not for limiting the utility model as defined by the attached claims and their equivalents.

Claims

1. A jig for induction spot welding, characterized in that: It comprises an upper template and a lower template which can be molded together or separated from each other, the top surface of the lower template is provided with two parallel first placement grooves and a receiving groove located between the two first placement grooves, second placement grooves are provided on both sides of the receiving grooves, the extension direction of the second placement grooves is perpendicular to the extension direction of the first placement grooves, one end of the two second placement grooves are connected with the receiving grooves, and the other ends of the two second placement grooves are respectively connected with the two first placement grooves; a lower through hole passing through the lower template is provided at a position of the first placement groove connected with the second placement groove, and an upper through hole corresponding to the lower through hole is provided on the upper template; both side walls of the end of the second placement groove connected with the first placement groove are provided with notches, and a heat-resistant block is detachably fixed in the notch.

2. The induction spot welding jig according to claim 1, characterized in that: The notch penetrates to the bottom surface of the lower template, and the heat-resistant block can be pulled out from the bottom surface of the lower template.

3. The induction spot welding jig according to claim 1, characterized in that: The bottom surface of the upper template is provided with a plurality of upper magnetic parts, and the top surface of the lower template is provided with a plurality of lower magnetic parts adapted to the upper magnetic parts. When the upper template and the lower template are molded together, the upper magnetic parts and the lower magnetic parts are attracted to each other.

4. The induction spot welding jig according to claim 3, characterized in that: Both ends of the upper template are provided with positioning blocks, and both ends of the lower template are provided with two upwardly protruding protrusions, and a positioning groove is formed between the two protrusions. When the upper template and the lower template are molded together, the two positioning blocks are respectively inserted in the two positioning grooves.

5. The induction spot welding jig according to any one of claims 1 to 4, characterized in that: The bottom wall of the accommodating groove is provided with a protruding limiting column, and the inductor coil is used to be sleeved on the limiting column.

6. The induction spot welding jig according to any one of claims 1 to 4, characterized in that: The height of the second placement groove on one side of the accommodating groove is greater than the height of the second placement groove on the other side of the accommodating groove.

7. The induction spot welding jig according to claim 6, characterized in that: The bottom surface of the upper mold plate is provided with a plurality of protruding pressing blocks. When the upper mold plate and the lower mold plate are molded together, the pressing blocks are inserted into the second placement grooves with a relatively low height.

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