Semiconductor lead heading device

Abstract

The utility model belongs to the technical field of lead heading machines, and particularly relates to a semiconductor lead heading device. The device comprises a base, a driving device, a sensor, a sliding block, a ram and a driving cylinder, the output end of the driving device is connected with the base and used for driving the base to reciprocate in the first direction, the output end of the driving device is further connected with an induction piece, and a first induction area and a second induction area are continuously formed on the induction piece. The sensing end of the sensor is arranged opposite to the sensing piece and is used for respectively sending out a first signal and a second signal in the first sensing area and the second sensing area; the sliding block is connected into the base in a sliding mode in the second direction perpendicular to the first direction. The two ram heads are sequentially installed on the sliding block in the second direction, and a forming groove is formed in the surface of one ram head. The end of an output rod of the driving cylinder is connected with the sliding block and used for driving the sliding block to do stretching or retracting reciprocating motion in the second direction according to the first signal and the second signal. The utility model is used for solving the problem that the lead end is difficult to form.

Description

Technical Field

[0001] The utility model belongs to the technical field of lead wire header machines, and in particular relates to a semiconductor lead wire header device. Background Art

[0002] The diode lead is a metal conductor that connects the diode chip to the external circuit. It is usually made of metal materials with good conductivity. The diode lead plays the role of transmitting current and signals. Through the diode lead, the diode can be connected to the pads on the circuit board, the pins of other devices, etc., to achieve circuit conduction and function realization.

[0003] At present, the end forming of some diodes is mostly formed by mechanical stamping, such as using a striker to aim at the clamped lead end to impact and form it. In order to ensure the yield rate of the end forming, the striker is usually used to quickly impact the lead end multiple times, so that the lead end is gradually flattened into shape.

[0004] However, during the impact molding process, the lead ends are usually difficult to form due to the thin leads. In addition, the lead end forming is usually a cycle manufacturing process of mechanical equipment, which makes it impossible to perform good molding control on the lead ends, resulting in a low yield rate and high difficulty in end forming. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a semiconductor lead header device for solving the problem of difficult lead terminal forming.

[0006] The utility model solves the above technical problems with the following technical solutions: a semiconductor lead-tipped device, comprising: a base;

[0007] A driving device, whose output end is connected to the base, and is used to drive the base to reciprocate along a first direction, and the output end of the driving device is also connected to a sensing element, and a first sensing area and a second sensing area are continuously formed on the sensing element;

[0008] A sensor, whose sensing end is arranged opposite to the sensing element, and is used to send out a first signal and a second signal respectively in the first sensing area and the second sensing area;

[0009] A slider, wherein the slider is slidably connected to the base along a second direction perpendicular to the first direction;

[0010] At least two impact heads, the impact heads are sequentially mounted on the slider along the second direction, and a molding groove is formed on the surface of one of the impact heads;

[0011] The drive cylinder has an output rod end connected to the slider, and is used to drive the slider to perform a reciprocating motion of extension or contraction along the second direction according to the first signal and the second signal respectively.

[0012] Compared with the prior art, the above technical solution has the following beneficial effects:

[0013] Two impact heads are used to form the end of the lead. Before flattening, the forming groove on one impact head is used to impact the end of the lead, and the end position is knocked together into a lump. Then, another impact head is used for regular flattening. At this time, the lead ends are more gathered and are easier to shape during flattening. Adverse conditions such as cracking are not likely to occur. The two impact heads are installed on a base, and then the impact is achieved under the reciprocating push of a driving device. The two impact heads are slidably installed on the base through a slider. The slider is switched through a driving cylinder to align different impact heads with the end of the lead. The timing of switching is achieved through the cooperation of a sensor and a sensing element. The sensor sends different signals according to different sensing areas on the sensing element to control the driving cylinder to switch the impact heads. In this way, the entire process is automated, which improves production efficiency and yield rate.

[0014] Based on the above technical solution, the embodiment of the present application can also be improved as follows:

[0015] In one embodiment, the driving device is a driving cam, the sensing element is a sensing wheel coaxially arranged with the driving cam, and the first sensing area and the second sensing area are continuously arranged end to end on the outer circumference of the sensing wheel.

[0016] In one embodiment, a push rod arranged along a first direction is connected between the base and the driving device, a fixed block is arranged on the push rod, at least one adjusting rod is arranged on the fixed block along the first direction, one end of the adjusting rod is fixedly connected to the base, and the other end is screwed to the fixed block.

[0017] In one embodiment, a protective cover is further included, which is arranged outside the driving cylinder. A limiting rod is screwed on the protective cover along the second direction, and the limiting rod is used to limit the output rod of the driving cylinder.

[0018] In one embodiment, a dovetail groove is provided in the base, and the slider is configured as a dovetail-type slider matching the dovetail groove;

[0019] A groove is formed on the inner wall of the dovetail groove along the second direction, the groove is filled with a pressure strip, and at least one adjusting screw penetrating and connected to the groove is connected to the base.

[0020] In one embodiment, a positioning groove for positioning the impact head is provided on the surface of the sliding block, and the positioning groove is a strip-shaped positioning groove provided along the second direction.

[0021] In one embodiment, the impact head comprises:

[0022] A base, wherein an extension portion is formed on one side of the base, and a fastener for fixed connection is passed through the extension portion;

[0023] A collision block is installed on the top of the base.

[0024] In one embodiment, a first waist-shaped hole arranged along the second direction for passing the fastener is opened in the extension portion.

[0025] In one embodiment, a connecting seat is provided on a side of the base away from the impact head, the connecting seat is detachably connected to the base, and a positioning connecting handle is provided on the surface of the connecting seat along a first direction.

[0026] In one embodiment, a second waist-shaped hole is formed on the connecting seat perpendicular to the second direction to adjust the alignment center of the impact head. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0029] Figure 2 for Figure 1 A schematic diagram of the structure from another perspective.

[0030] Figure 3 for Figure 2 Schematic diagram of the overall structure without the push rod and the driving device.

[0031] Figure 4 for Figure 3 Schematic diagram of the structure viewed from above.

[0032] Reference numerals:

[0033] 1. Base; 2. Driving device; 3. Sensor; 4. Slider; 5. Impact head;

[0034] 501, base; 502, extension portion; 503, collision block;

[0035] 6. Driving cylinder; 7. Output rod;

[0036] 8. Sensing element; 9. First sensing area; 10. Second sensing area;

[0037] 11. Forming groove;

[0038] 12. Putting;

[0039] 13. Fixed block; 14. Adjustment rod;

[0040] 15. Protective cover; 16. Limit rod;

[0041] 17. groove; 18. pressure strip; 19. adjusting screw;

[0042] 20. Positioning groove;

[0043] 21. The first waist-shaped hole;

[0044] 22. Connecting seat; 23. Positioning connecting handle; 24. Second waist-shaped hole. DETAILED DESCRIPTION

[0045] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0046] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0047] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and 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.

[0048] In addition, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present utility model, the meaning of "plurality" is more than two, unless otherwise clearly and specifically limited.

[0049] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0050] Example

[0051] like Figure 1-4 As shown, the semiconductor lead heading device provided by the utility model comprises: a base, a driving device, a sensor, a slider, two striking heads and a driving cylinder.

[0052] The output end of the driving device is connected to the base, and is used to drive the base to reciprocate along a first direction, wherein the first direction is a horizontal direction. The output end of the driving device is also connected to a sensing element, and a first sensing area and a second sensing area are continuously formed on the sensing element. The sensing end of the sensor is arranged opposite to the sensing element, and is used to send a first signal and a second signal respectively when in the first sensing area and the second sensing area;

[0053] The slider is slidably connected to the base along a second direction perpendicular to the first direction, wherein the second direction is a vertical direction perpendicular to the horizontal, that is, the slider can slide in the vertical direction, and two impact heads are sequentially installed on the slider along the second direction, wherein a molded groove is provided on the surface of one of the impact heads, and the impact surface on the other impact head can be set to different shapes such as grooves and planes according to actual needs, and the molded groove is specifically provided on the impact surface of the impact head, and the first direction is perpendicular to the impact surface, and the output rod end of the driving cylinder is connected to the slider, and is used to drive the slider to perform reciprocating movements of extension or contraction along the second direction according to the first signal and the second signal respectively.

[0054] Two impact heads are used to form the end of the lead. Before flattening, the forming groove on one impact head is used to impact the end of the lead, and the end position is knocked together into a lump. Then, another impact head is used for regular flattening. At this time, the lead ends are more gathered and are easier to shape during flattening. Adverse conditions such as cracking are not likely to occur. The two impact heads are installed on a base, and then the impact is achieved under the reciprocating push of a driving device. The two impact heads are slidably installed on the base through a slider. The slider is switched through a driving cylinder to align different impact heads with the end of the lead. The timing of switching is achieved through the cooperation of a sensor and a sensing element. The sensor sends different signals according to different sensing areas on the sensing element to control the driving cylinder to switch the impact heads. In this way, the entire process is automated, which improves production efficiency and yield rate.

[0055] Specifically, the driving device is a driving cam, which pushes the base to reciprocate along the first direction at intervals during rotation, thereby driving the two impact heads to reciprocate in the first direction. The sensing member is an sensing wheel coaxially arranged with the driving cam, and the first sensing area and the second sensing area are continuously arranged end to end on the outer periphery of the sensing wheel. The radius lengths of the first sensing area and the second sensing area are different, so the two sensing areas are divided. The sensor corresponds to the two sensing areas. The sensor can be a photoelectric sensor, etc. The sensor is fixedly arranged. Since the sensing member is coaxially arranged with the driving cam, the two sensing areas will be continuously spaced to correspond to the sensor respectively during the rotation of the sensing member, so that the sensor continuously sends out the first signal, the second signal and the first signal, and so on.

[0056] In this embodiment, a control unit can also be provided, which can be implemented by a controller such as a PLC. The sensor is connected to the control unit, and the control unit is connected to the drive cylinder for controlling the drive cylinder. For example, the drive cylinder is implemented by a pneumatic cylinder, and the control unit is connected to the pneumatic valve. When the first signal and the second signal are switched, a signal is quickly sent to the pneumatic valve, and the pneumatic valve is used to control the drive cylinder to achieve a switching operation, thereby driving the two impact heads to move up and down, switching the first impact head to correspond to the end of the wire, or switching the second impact head to correspond to the end of the wire.

[0057] In one embodiment, a push rod arranged along a first direction is connected between the base and the driving device, and the driving device drives the base to realize reciprocating motion along the first direction through the push rod. A fixed block is arranged on the push rod, and at least one adjusting rod is arranged on the fixed block along the first direction. One end of the adjusting rod is fixedly connected to the base, and the other end is screwed to the fixed block. The adjusting rod can be a screw rod. Since the impact force and stroke of the driving device remain fixed, the adjusting rod can adjust the distance between the base and the push rod, thereby realizing the adjustment of the distance between the impact surface of the impact head mounted on the base and the end of the lead wire to adapt to different molding requirements.

[0058] It also includes a protective cover, which is arranged outside the driving cylinder, and a limiting rod is screwed on the protective cover along the second direction, and the limiting rod is used to limit the output rod of the driving cylinder;

[0059] On the one hand, the protective cover can play the role of protecting the driving cylinder. At the same time, a limit rod can be set on the protective cover. The limit rod can be a screw rod, which is threaded with the protective cover. The limit rod is coaxially arranged with the output rod of the driving cylinder. The driving cylinder can adopt a double-rod driving cylinder, one end of which is fixedly connected to the slider and the other end is opposite to the limit rod. The limit rod can limit the maximum displacement range of the output rod of the driving cylinder.

[0060] Specifically, a dovetail groove is provided in the base, and the slider is configured as a dovetail-type slider matching the dovetail groove. Through the configuration of the dovetail groove and the dovetail-type slider, the slider can be kept moving in the second vertical direction to avoid shaking.

[0061] In order to make the tightness of the dovetail groove and the dovetail slider adjustable, a groove is opened on the inner wall of the dovetail groove along the second direction, and the groove is filled with a pressure strip. At least one adjusting screw that passes through the groove is connected to the base, and the end of the adjusting screw extends into the groove and can abut against the surface of the pressure strip. By screwing the adjusting screw in and out, the pressure strip can be pressed against the surface of the slider or loosened, thereby adjusting the tightness between the slip ring and the dovetail groove.

[0062] The surface of the slider is provided with a positioning groove for positioning the impact head, and the positioning groove is a strip positioning groove opened along the second direction. The positioning groove is set as a vertical strip positioning groove, so that the impact head can be further vertically adjusted in this direction, while the horizontal direction is restricted by the positioning groove and no deviation occurs.

[0063] In this embodiment, the impact head includes: a base and a collision block.

[0064] An extension portion is formed on one side of the base, and a fastener for fixing the connection is passed through the extension portion. The fastener can be a screw, and the base is tightened in the positioning groove by the screw. The impact block is installed on the top of the base so that the impact block faces the lead end.

[0065] The extension portion is provided with a first waist-shaped hole arranged along the second direction for passing the fastener. The arrangement of the first waist-shaped hole enables the positions of the two impact heads to be adjusted in the second vertical direction.

[0066] A connecting seat is provided on one side of the base away from the impact head, and the connecting seat is detachably connected to the base. A positioning connecting handle is provided on the surface of the connecting seat along a first direction. The setting of the positioning connecting handle can make the connection between the entire base and the external driving device of the horizontal driving base more accurately positioned;

[0067] Specifically, a deep hole matching the positioning connecting handle is opened at the end of the push rod near the base. After the positioning connecting handle is inserted into the deep hole, the end of the push rod rests on the connecting seat and is then screwed and fixed to the fixing block on the push rod through the adjusting rod on the base.

[0068] A second waist-shaped hole is provided on the connecting seat perpendicular to the second direction to adjust the alignment center of the impact head;

[0069] Specifically, the connecting seat has a transverse dovetail-shaped protrusion, and a groove matching the dovetail-shaped protrusion is provided on the back of the base, so that the connecting seat is connected to the base through the dovetail-shaped protrusion, thereby ensuring stability in the first direction and avoiding deviation in the first direction, and being able to achieve horizontal movement perpendicular to the second direction and matching the length direction of the waist-shaped hole, thereby facilitating adjustment of the base and the connecting seat in this direction.

[0070] Since the impact head is installed in the positioning groove, the impact head can be adjusted in the second vertical direction, and the second waist-shaped hole on the connecting seat is opened in a horizontal direction perpendicular to the second direction, so that the base as a whole can be adjusted in a horizontal direction and perpendicular to the positioning groove, and then the position of the impact head can be adjusted in the horizontal direction, which is convenient for aligning the impact head with the lead end.

[0071] The adjustment direction of the adjustment rod along the first direction is set to the X-axis direction, and the adjustment direction of the second waist-shaped hole along the second direction is set to the Y-axis direction. The limit rod can be used for adjustment in the Z-axis direction, and the impact head is positioned and adjusted in the vertical Z-axis direction. In this way, the impact head on the base can be adjusted in all directions from three directions, so that the impact head can be better aligned with the lead end.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A semiconductor lead header device, characterized in that: include: Pedestal; A driving device, whose output end is connected to the base, and is used to drive the base to reciprocate along a first direction, and the output end of the driving device is also connected to a sensing element, and a first sensing area and a second sensing area are continuously formed on the sensing element; A sensor, whose sensing end is arranged opposite to the sensing element, and is used to send out a first signal and a second signal respectively in the first sensing area and the second sensing area; A slider, wherein the slider is slidably connected to the base along a second direction perpendicular to the first direction; At least two impact heads, the impact heads are sequentially mounted on the slider along the second direction, and a molding groove is formed on the surface of one of the impact heads; The drive cylinder has an output rod end connected to the slider, and is used to drive the slider to perform a reciprocating motion of extension or contraction along the second direction according to the first signal and the second signal respectively.

2. The heading device according to claim 1, characterized in that: The driving device is a driving cam, the sensing element is an sensing wheel coaxially arranged with the driving cam, and the first sensing area and the second sensing area are continuously arranged end to end on the outer circumference of the sensing wheel.

3. The heading device according to claim 1, characterized in that: A push rod arranged along a first direction is connected between the base and the driving device, a fixing block is arranged on the push rod, at least one adjusting rod is arranged on the fixing block along the first direction, one end of the adjusting rod is fixedly connected to the base, and the other end is screwed to the fixing block.

4. The heading device according to claim 1, characterized in that: It also includes a protective cover, which is arranged outside the driving cylinder. A limiting rod is screwed on the protective cover along the second direction, and the limiting rod is used to limit the output rod of the driving cylinder.

5. The heading device according to claim 1, characterized in that: A dovetail groove is provided in the base, and the slider is configured as a dovetail-type slider matching the dovetail groove; A groove is formed on the inner wall of the dovetail groove along the second direction, the groove is filled with a pressure strip, and at least one adjusting screw penetrating and connected to the groove is connected to the base.

6. The heading device according to claim 1, characterized in that: A positioning groove for positioning the impact head is provided on the surface of the sliding block, and the positioning groove is a strip-shaped positioning groove provided along the second direction.

7. The heading device according to claim 6, characterized in that: The impact head comprises: A base, wherein an extension portion is formed on one side of the base, and a fastener for fixed connection is passed through the extension portion; A collision block is installed on the top of the base.

8. The heading device according to claim 7, characterized in that: The extending portion is provided with a first waist-shaped hole arranged along the second direction and used for passing the fastener.

9. The heading device according to claim 1, characterized in that: A connecting seat is arranged on a side of the base away from the impact head, the connecting seat is detachably connected to the base, and a positioning connecting handle is arranged on the surface of the connecting seat along a first direction.

10. The heading device according to claim 9, characterized in that: A second waist-shaped hole is provided on the connecting seat perpendicular to the second direction to adjust the alignment center of the impact head.

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