Bending equipment for PTC (Positive Temperature Coefficient) thermistor pin

Abstract

The utility model discloses bending equipment for pins of a PTC (Positive Temperature Coefficient) thermistor, and relates to the technical field of PTC thermistor processing. The device comprises a base, a plurality of positioning blocks and two electric push rods are fixedly arranged on the surface of the base, two symmetrical sliding plates are slidably connected to the surface of the base through guide rails, two extrusion plates are fixedly arranged on one side of each sliding plate, and output shafts of the electric push rods are fixed to the extrusion plates; a machining box is arranged between the multiple positioning blocks, two first through holes are formed in each of the surface and the bottom of the machining box, two second through holes are formed in each of the two sides of the machining box, and two symmetrical moving plates are slidably connected between the inner wall of the top of the machining box and the inner wall of the bottom of the machining box. According to the PTC thermistor machining device, the distance between the machining grooves and the number of the filler strips can be adjusted according to the specification of a PTC thermistor, the application range of the device is widened, stable supporting can be provided for the movable plate, the movable plate is prevented from being bent due to stress, and the stability of the whole structure is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of PTC thermistor processing, and particularly relates to a bending device for pins of a PTC thermistor. Background Art

[0002] PTC generally refers to a positive temperature coefficient thermistor, abbreviated as PTC thermistor. A PTC thermistor is a typical semiconductor resistor with temperature sensitivity. When the temperature exceeds a certain value (Curie temperature), its resistance value increases step by step with the increase of temperature.

[0003] When processing a PTC thermistor, it is necessary to bend the pins, so corresponding bending equipment is required. However, the existing bending equipment can usually only process PTC thermistors of one specification and cannot be adjusted according to the specification of the PTC thermistor, resulting in limitations in use.

[0004] Therefore, we propose a bending device for pins of a PTC thermistor. Content of the Utility Model

[0005] The purpose of the utility model is to solve the shortcomings that the existing bending equipment can usually only process PTC thermistors of one specification and cannot be adjusted according to the specification of the PTC thermistor, resulting in limitations in use, and to propose a bending device for pins of a PTC thermistor.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A bending device for pins of a PTC thermistor, comprising:

[0008] A base, on the surface of which a plurality of positioning blocks and two electric push rods are fixedly arranged. Two symmetrical sliding plates are slidably connected to the surface of the base through guide rails. Two extrusion plates are fixedly arranged on one side of each sliding plate, and the output shafts of the electric push rods are fixed to the extrusion plates;

[0009] A processing box is arranged among the plurality of positioning blocks. Two first through holes are formed in the surface and bottom of the processing box respectively. Two second through holes are formed in both sides of the processing box respectively. Two symmetrical moving plates are slidably connected between the top inner wall and the bottom inner wall of the processing box. A bidirectional lead screw rotatably penetrates through one side of the processing box, and the bidirectional lead screw threadedly penetrates through the two moving plates respectively. A bending groove is formed on one side of each moving plate, a plurality of communicating processing grooves are formed on one side of the bending groove, and a communicating extraction groove is formed on one side of each processing groove;

[0010] An adjusting mechanism is arranged on the surface of the processing box and is used for adjusting the height of the PTC thermistor.

[0011] In a possible design, the adjustment mechanism includes two support bars and two U-shaped blocks. The support bars are respectively fixed in the two first through holes, and the U-shaped blocks are fixed on the surface of the processing box. At least one pad is provided between the U-shaped blocks.

[0012] In a possible design, mounting blocks are fixed at both ends of the processing box, a screw is rotatably passed through one side of the mounting block, two symmetrically arranged support blocks are slidably connected between the inner walls of both sides of the processing box, the screw and the support blocks are threadedly connected, and two symmetrical first inclined surfaces are opened on one side of the support block, and the first inclined surfaces cooperate with the movable plate.

[0013] In a possible design, both ends of the movable plate are provided with a second inclined surface, and the second inclined surface matches the first inclined surface.

[0014] In a possible design, rubber strips are bonded to inner walls on both sides of the processing groove.

[0015] In a possible design, a clearance groove is provided on the surface of the base, and the clearance groove is located below the processing box.

[0016] In the present application, when in use, the bidirectional screw is rotated to drive the two movable plates to move closer or farther from each other, thereby changing the spacing of the processing grooves, and then the screw is rotated to drive the support block to move so that the first inclined surface is against the second inclined surface, and then an appropriate amount of pads are placed between the U-shaped blocks, and then the pins of the PTC thermistor are placed in the processing groove, and then the processing box is placed between the positioning blocks, and then the electric push rod is started. The electric push rod drives the slide plate and the extrusion plate to move, and the extrusion plate passes through the second through hole. The pins are bent with the cooperation of the extrusion plate and the bending groove. After the processing is completed, the processing box is removed, and then the PTC thermistor is translated for a distance and taken out.

[0017] Beneficial effects:

[0018] In the utility model, the bending device for the pin of the PTC thermistor is provided with multiple structures such as a movable plate, a bidirectional screw rod and a pad strip. The bidirectional screw rod can adjust the spacing of the movable plate, thereby changing the spacing of the processing grooves, and is suitable for PTC thermistors of different specifications. At the same time, a suitable number of pad strips can be provided, thereby changing the height of the PTC thermistor and adjusting the bending position of the pin, thereby improving the application range of the device;

[0019] In the utility model, the bending device of the PTC thermistor pin can provide stable support for the moving plate through the arrangement of the support block, the first inclined surface and the second inclined surface, thereby preventing the moving plate from bending under force and improving the stability of the overall structure;

[0020] In the present utility model, the spacing of the processing grooves and the number of cushion strips can be adjusted according to the specifications of the PTC thermistor, which improves the applicable range of the equipment. It can also provide stable support for the moving plate, prevent the moving plate from bending under force, and improve the stability of the overall structure. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 It is a schematic three-dimensional structure diagram of an embodiment of the present utility model;

[0023] Figure 2 It is a schematic structure diagram of the processing box of an embodiment of the present utility model;

[0024] Figure 3 It is a schematic partial three-dimensional structure diagram of an embodiment of the present utility model;

[0025] Figure 4 It is a schematic partial cross-sectional structure diagram of an embodiment of the present utility model.

[0026] In the figure: 1, base; 2, positioning block; 3, relief groove; 4, sliding plate; 5, extrusion plate; 6, electric push rod; 7, processing box; 8, first through hole; 9, second through hole; 10, moving plate; 11, bidirectional lead screw; 12, support strip; 13, U-shaped block; 14, cushion strip; 15, mounting block; 16, screw; 17, support block; 18, first inclined surface; 19, second inclined surface; 20, processing groove; 21, bending groove; 22, rubber strip; 23, extraction groove. Detailed Embodiment

[0027] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0028] In the description of the present utility model, it should be understood that terms such as "opening", "upper", "middle", "length", "inner", etc. indicating orientation or positional relationships are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0029] To keep the following description of the embodiments of the present utility model clear and concise, detailed descriptions of known functions and known components are omitted.

[0030] Embodiment 1

[0031] Refer to Figures 1-4 , a bending device for PTC thermistor pins, comprising:

[0032] A base 1, on the surface of the base 1, a plurality of positioning blocks 2 and two electric push rods 6 are fixedly provided. The positioning blocks 2 are used to position the processing box 7, and the electric push rods 6 provide power for the pressing plates 5. On the surface of the base 1, two symmetrical sliding plates 4 are slidably connected through guide rails. On one side of each of the sliding plates 4, two pressing plates 5 are fixedly provided, which are used to cooperate with the bending grooves 21 to bend the PTC thermistor pins. The output shafts of the electric push rods 6 are fixed to the pressing plates 5;

[0033] Between the plurality of positioning blocks 2, there is a processing box 7. On the surface and bottom of the processing box 7, two first through holes 8 are respectively opened. On both sides of the processing box 7, two second through holes 9 are respectively opened. Between the top inner wall and the bottom inner wall of the processing box 7, two symmetrical moving plates 10 are slidably connected. A bidirectional lead screw 11 is rotatably penetrated through one side of the processing box 7, which is used to adjust the distance between the moving plates 10, and thus change the distance of the processing grooves 20, suitable for pins with different distances, that is, PTC thermistors of different specifications. The bidirectional lead screw 11 respectively threadedly penetrates through the two moving plates 10. On one side of each of the moving plates 10, a bending groove 21 is opened. On one side of each of the bending grooves 21, a plurality of connected processing grooves 20 are opened, which are used to process the pins. On one side of each of the processing grooves 20, a connected extraction groove 23 is opened, which is used to extract the PTC thermistor;

[0034] An adjusting mechanism, which is arranged on the surface of the processing box 7 and is used to adjust the height of the PTC thermistor. The adjusting mechanism includes two support bars 12 and two U-shaped blocks 13. The support bars 12 are respectively fixedly provided in the two first through holes 8. The U-shaped blocks 13 are both fixedly provided on the surface of the processing box 7. Between the U-shaped blocks 13, at least one cushion strip 14 is provided. Different numbers of cushion strips 14 can be set to change the height of the PTC thermistor, and thus change the processing position.

[0035] This application can be used in the field of PTC thermistor processing, and can also be used in other fields applicable to this application.

[0036] Example 2

[0037] A PTC thermistor pin bending device improved on the basis of Example 1, which is applied to the field of PTC thermistor processing;

[0038] In one aspect of the present embodiment, mounting blocks 15 are fixedly provided at both ends of the processing box 7, and a screw rod 16 is rotatably penetrated on one side of the mounting block 15. Two symmetrically arranged supporting blocks 17 are slidably connected between the inner walls on both sides of the processing box 7. The screw rod 16 and the supporting block 17 are threadedly connected. One side of the supporting block 17 is provided with two symmetrical first inclined surfaces 18. The first inclined surfaces 18 cooperate with the movable plate 10 to limit and support the two ends of the movable plate 10, thereby avoiding bending of the two ends of the movable plate 10 under force when the extrusion plate 5 is squeezed, thereby improving the stability of the structure.

[0039] In one aspect of this embodiment, both ends of the movable plate 10 are provided with second inclined surfaces 19 , and the second inclined surface 19 cooperates with the first inclined surface 18 to increase the contact area and improve the limiting effect.

[0040] In one aspect of this embodiment, rubber strips 22 are bonded to the inner walls of both sides of the processing groove 20, which can prevent the pins from being randomly offset during processing and will not affect people's movement of the PTC thermistor.

[0041] In one aspect of this embodiment, a clearance groove 3 is provided on the surface of the base 1. The clearance groove 3 is located below the processing box 7 and can make room for the pins, thereby facilitating the processing of the PTC thermistor.

[0042] It should be noted that, in the description of this specification, descriptions such as "first", "second", etc. are merely used to distinguish between various features and have no actual order or directional meaning, and this application is not limited to this.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The preferred embodiments of the present utility model disclosed above are only used to help illustrate the present utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the present utility model to the specific embodiments described. Obviously, according to the content of this specification, many modifications and variations can be made. This specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the present utility model, so that those skilled in the relevant art can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A bending device for the pins of a PTC thermistor, characterized in that, include: A base (1), wherein a plurality of positioning blocks (2) and two electric push rods (6) are fixedly arranged on the surface of the base (1), two symmetrical slide plates (4) are slidably connected to the surface of the base (1) via a guide rail, two extrusion plates (5) are fixedly arranged on one side of the slide plates (4), and the output shaft of the electric push rod (6) is fixed to the extrusion plate (5); A processing box (7) is provided between the plurality of positioning blocks (2), two first through holes (8) are provided on the surface and bottom of the processing box (7), two second through holes (9) are provided on both sides of the processing box (7), two symmetrical moving plates (10) are slidably connected between the top inner wall and the bottom inner wall of the processing box (7), a bidirectional screw rod (11) is rotatably penetrated on one side of the processing box (7), the bidirectional screw rod (11) is respectively threadedly penetrated through the two moving plates (10), a bending groove (21) is provided on one side of the moving plate (10), a plurality of connected processing grooves (20) are provided on one side of the bending groove (21), and a connected removal groove (23) is provided on one side of the processing groove (20); An adjusting mechanism is arranged on the surface of the processing box (7) and is used to adjust the height of the PTC thermistor.

2. The bending device for the pins of a PTC thermistor according to claim 1, characterized in that, The adjustment mechanism comprises two support bars (12) and two U-shaped blocks (13); the support bars (12) are respectively fixed in the two first through holes (8); the U-shaped blocks (13) are fixed on the surface of the processing box (7); and at least one pad (14) is provided between the U-shaped blocks (13).

3. The bending device for PTC thermistor pins according to claim 2, wherein, Both ends of the processing box (7) are fixedly provided with mounting blocks (15), one side of the mounting blocks (15) is rotatably penetrated by a screw rod (16), two symmetrically arranged supporting blocks (17) are slidably connected between the inner walls of both sides of the processing box (7), the screw rod (16) and the supporting blocks (17) are threadedly connected, and one side of the supporting block (17) is provided with two symmetrical first inclined surfaces (18), and the first inclined surfaces (18) and the movable plate (10) are matched.

4. The bending device for the pins of a PTC thermistor according to claim 3, characterized in that, Both ends of the movable plate (10) are provided with second inclined surfaces (19), and the second inclined surfaces (19) match the first inclined surfaces (18).

5. The bending device for pins of a PTC thermistor according to claim 4, wherein Rubber strips (22) are bonded to the inner walls on both sides of the processing groove (20).

6. The bending device for the pins of a PTC thermistor according to claim 5, characterized in that, A clearance groove (3) is provided on the surface of the base (1), and the clearance groove (3) is located below the processing box (7).

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