Pin fixing chuck and pin mechanism for PCB pin machine

Abstract

The utility model discloses a pin fixing chuck and a pin mechanism for a PCB pin machine, and relates to the technical field of PCB automatic pin machine equipment. The contact pin fixing chuck for the PCB contact pin machine comprises a body and a limiting part. The body is sequentially provided with a first locking end and a second locking end in a protruding mode in the first direction, and the second locking end is used for being movably connected with an external contact pin push rod. The limiting part comprises a first limiting plate and a second limiting plate, and the first limiting plate and the second limiting plate are arranged in a spaced mode in the second direction to form a limiting groove; wherein the first locking end and the second locking end are arranged on the two sides of the body in the third direction respectively, and the limiting part and the second locking end are located on the same side. By adopting the technology provided by the utility model, the pin can be limited, and the pin is prevented from inclining.

Description

TECHNICAL FIELD

[0001] The utility model relates to PCB automatic needle inserting machine equipment technical field, concretely relates to a kind of needle inserting fixed chuck and needle inserting mechanism for PCB needle inserting machine. BACKGROUND

[0002] PCB needle inserting machine is a kind of for PIN needle is accurately inserted into the hole of PCB, to realize the connection and the fixed mechanical equipment of electronic component. Among them, as shown in the full-automatic mechanical type high-speed needle inserting machine disclosed in Chinese patent document (CN103781287B), steel needle needs to pass through the moving seat installed above cutter seat and connected with driving device so as to be movable up and down, fixed chuck and movable chuck installed at the lower end of moving seat and the pressure bar for cooperating with fixed chuck and movable chuck to fix and clamp steel needle insertion PCB, mutually cooperate and insert steel needle into PCB.

[0003] Specifically, the above-mentioned clamping action must be opened by the movable chuck relative to the fixed chuck, and then the movable chuck is tightly attached to the fixed chuck after the steel needle passes through to realize clamping. Combined with the description of the accompanying drawings of the patent document Figure 7 It can be seen that the pressure bar is used to cooperate with the movable chuck and the fixed chuck. That is, the fixed chuck in the patent document relies on the pressure of the pressure bar to realize the limiting of the steel needle. When the driving force of the pressure bar is insufficient, the steel needle is easy to be skewed, which leads to the error of subsequent shearing size. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of needle inserting fixed chuck for PCB needle inserting machine, to solve the problem that steel needle is easy to skew when the driving force of pressure bar in prior art is insufficient.

[0005] To solve the above technical problems, the utility model adopts the technical scheme to provide a kind of needle inserting fixed chuck for PCB needle inserting machine, the needle inserting fixed chuck for PCB needle inserting machine includes: body and limiting portion.

[0006] The body is sequentially provided with first locking end and second locking end along the first direction, and the second locking end is used to be movably connected with the needle pushing rod outside;The limiting portion includes first limiting plate and second limiting plate along the first direction, wherein the first limiting plate and the second limiting plate are spaced apart to form a limiting groove along the second direction;Wherein, the first locking end and the second locking end are respectively arranged on the two sides of the body along the third direction, and the limiting portion and the second locking end are located on the same side.

[0007] The technical scheme provided by the utility model has the beneficial effects compared with prior art:

[0008] The limiting slot is formed by the first limiting plate and the second limiting plate, so that when the pin is located in the limiting slot, the first limiting plate and the second limiting plate can resist the pin on both sides to avoid the pin from being skewed.

[0009] In addition, the first locking end is used to lock the body to the pin machine and is fixed, and the second locking end opposite to the first locking end is movably connected with the pin push rod, so that the pin push rod can rotate relative to the pin fixed chuck under the action of external driving force and abut against the pin located in the limiting slot, thereby clamping the pin, facilitating the pin to be sheared by the subsequent shearing assembly.

[0010] In some embodiments, the first limiting plate and the second limiting plate are sequentially arranged as a first protrusion, a second protrusion and a third protrusion along the first direction, respectively, wherein the height of the third protrusion along the third direction is greater than that of the first protrusion, and the second protrusion is connected with the first protrusion and the third protrusion, respectively.

[0011] According to the above technical solution, the first protrusion with a lower height gradually transitions to the third protrusion with a higher height, so that when the clamp clamps the pin transported by the transportation device, the first protrusion located at the upper end of the limiting portion does not restrict the clamping action of the pin push rod, and the third protrusion located at the lower end can exert sufficient restraining force on the pin.

[0012] In some embodiments, an arc-shaped inner chamfer is arranged at the end of the third protrusion away from the second protrusion. According to the above technical solution, the arc-shaped chamfer process can keep the outer edge of the third protrusion as a circular ring, thereby reducing the friction with the pin. Further, the end of the first protrusion away from the second protrusion is connected with the body arc.

[0013] In some embodiments, the second locking end is provided with a first through hole penetrating through the second locking end along the second direction. Further, the body is further provided with a plurality of elastic connection holes arranged at intervals along the first direction, and the plurality of elastic connection holes are located on the same side as the second locking end, so as to improve the connection stability between the pin fixed chuck and the pin push rod.

[0014] In some embodiments, the application further provides a pin mechanism, comprising the pin fixed chuck for the PCB pin machine as described above, and further comprising: a pin push rod, the pin push rod comprising a containing slot extending along a first direction and a second through hole penetrating through the containing slot along a second direction, wherein the pin fixed chuck is embedded in the containing slot, and the second locking end is movably connected with the second through hole.

[0015] By the above technical solution, the pin fixing clamp head is quickly installed through the accommodating groove and the pin fixing clamp head is rotatably connected with the accommodating groove through the first through hole and the second through hole, so that the pin pushing rod can be close to or away from the pin fixing clamp head when the pin pushing rod is driven by an external driving force, thereby realizing clamping of the pin.

[0016] In some embodiments, the pin pushing rod further comprises an abutting portion capable of abutting against a limiting portion of the fixing clamp head, wherein the abutting portion is provided with a pressing head capable of being in concave-convex cooperation with a limiting groove of the limiting portion. By the above technical solution, the pin in the limiting groove is clamped by embedding the pressing head of the abutting portion into the limiting groove.

[0017] Further, the pressing head is provided with a cutout on both sides in the second direction, so that when the abutting portion is in abutment with the limiting portion, a third convex portion of the limiting portion is arranged on the cutout.

[0018] By the above technical solution, the low-pressure portion and the limiting portion can at least partially coincide when clamping the pin, and the cutout is arranged to ensure that the first convex portion and the second convex portion do not overlap the pressing head, so as to limit the degree of coincidence of the low-pressure portion and the limiting portion, thereby avoiding damage to the pin caused by excessive clamping of the pin.

[0019] In some embodiments, the abutting portion is further provided with a stop strip in the third direction, and the stop strip is located between the pressing head and the accommodating groove in the first direction.

[0020] By the above technical solution, the stop strip is added to avoid excessive elongation of the pin into the accommodating groove, in other words, the pin fixing clamp head and the pin pushing rod can only clamp the upper end of the pin through the stop strip. In some embodiments, the first locking end of the fixing clamp head is located outside the limiting groove. By the above technical solution, the first locking end is used to lock the pin fixing clamp head to the pin machine, and the first locking end is exposed outside the limiting groove, which can facilitate installation of the pin fixing clamp head. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor, wherein:

[0022] Figure 1 is a perspective structural schematic diagram of an embodiment of a pin fixing clamp head provided by the present application;

[0023] Figure 2 is a side view of an embodiment of a limiting portion of a pin fixing clamp head provided by the present application;

[0024] Figure 3 is a partial structure diagram of an embodiment of the plug pin fixing chuck provided by the utility model;

[0025] Figure 4 is a side view of an embodiment of the plug pin fixing chuck provided by the utility model;

[0026] Figure 5 is a three-dimensional structure schematic diagram of an embodiment of the plug pin push rod provided by the utility model;

[0027] Figure 6 is a connection schematic diagram of an embodiment of the plug pin mechanism provided by the utility model;

[0028] Figure 7 is Figure 6 a partial structure diagram.

[0029] In the drawings:

[0030] 1, plug pin fixing chuck; 10, body; 100, first locking end; 101, second locking end; 102, first through hole; 103, elastic connecting hole; 11, limiting part; 110, first limiting plate; 111, second limiting plate; 112, limiting groove; 113, first convex part; 114, second convex part; 115, third convex part; 116, arc-shaped inner chamfer; 2, plug pin push rod; 20, accommodating groove; 200, second through hole; 21, pressing part; 210, pressure head; 211, notch; 212, stop bar. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] In order to facilitate subsequent description, before describing the specific structure of the plug pin fixing chuck and the plug pin mechanism, the first direction (X), the second direction (Z) and the third direction (Y) are defined in the application in combination with Figure 1 the drawings. Among them, the first direction is the length direction when the plug pin fixing chuck is horizontally placed, for example, the X direction; the second direction is the height direction when the plug pin fixing chuck is horizontally placed, for example, the Z direction; the third direction is the width direction when the plug pin fixing chuck is horizontally placed, for example, the Y direction. The first direction (X), the second direction (Z) and the third direction (Y) are perpendicular to each other in the application.

[0033] It is understood that the mutual perpendicularity in this application is not absolute perpendicularity. Approximate perpendicularity due to processing errors and assembly errors (e.g., the included angle between two structural features is 89.9°) is also within the scope of mutual perpendicularity in this application.

[0034] See Figures 1-2 As shown, Figure 1 This paper shows a three-dimensional structural schematic diagram of an embodiment of a pin fixing clamp 1 provided in this application; Figure 2 A side view of an embodiment of a pin fixing clamp 1 provided in this application is shown.

[0035] In some embodiments, the pin fixing chuck 1 for the PCB pin insertion machine includes a body 10 and a limiting part 11. The body 10 is provided with a first locking end 100 and a second locking end 101 protruding sequentially along a first direction. The second locking end 101 is used to movably connect with an external pin push rod 2. The limiting part 11 includes a first limiting plate 110 and a second limiting plate 111, wherein the first limiting plate 110 and the second limiting plate 111 are spaced apart along a second direction to form a limiting groove 112. The first locking end 100 and the second locking end 101 are respectively disposed on both sides of the body 10 along a third direction, and the limiting part 11 and the second locking end 101 are located on the same side.

[0036] In this embodiment of the application, a limiting groove 112 is added to the limiting part 11 so that the pin can be inserted into the limiting groove 112, thereby initially limiting the pin. The limiting groove 112 is formed by a first limiting plate 110 and a second limiting plate 111 spaced apart, so that when the pin is located in the limiting groove 112, the first limiting plate 110 and the second limiting plate 111 can block the pin on both sides of the pin to prevent the pin from tilting.

[0037] For example, such as Figure 1 As shown, the first locking end 100 is provided with multiple locking holes so that the body 10 can be fixed to the pin insertion machine through the first locking end 100. The second locking end 101, located on the opposite side of the first locking end 100, is used to movably connect with the pin insertion push rod 2, so that the pin insertion push rod 2 can rotate relative to the pin fixing chuck 1 under the action of external driving force, and can abut against the pin located in the limiting groove 112, thereby clamping the pin, so that the subsequent cutting assembly can cut the pin.

[0038] In some application scenarios, combined with Figure 2As shown, the limiting groove 112 can also be provided in a trapezoidal shape in projection along the first direction, that is, the first limiting plate 110 and the second limiting plate 111 gradually widen along the third direction, thereby facilitating the accommodation of different specifications of the contact pin. When different specifications of the contact pin are replaced, the contact pin fixing chuck 1 need not be replaced.

[0039] Referring to Figure 3 As shown, Figure 3 A partial perspective structural schematic diagram of an embodiment of the contact pin fixing chuck 1 provided by the present application is shown.

[0040] In some embodiments, the first limiting plate 110 and the second limiting plate 111 are sequentially provided with a first protruding portion 113, a second protruding portion 114 and a third protruding portion 115 along the first direction, respectively, wherein the height of the third protruding portion 115 along the third direction is greater than that of the first protruding portion 113, and the second protruding portion 114 connects the first protruding portion 113 and the third protruding portion 115, respectively.

[0041] In the embodiment of the present application, the first protruding portion 113 gradually transitions to the third protruding portion 115, so that when the chuck clamps the contact pin transported by the conveying device, the clamping action of the contact pin push rod 2 is not restricted by the first protruding portion 113 located at the upper end of the limiting portion 11, and at the same time, the third protruding portion 115 located at the lower end can exert sufficient restraining force on the contact pin.

[0042] Exemplarily, the third protruding portion 115 is provided with an arc-shaped inner chamfer 116 at the end away from the second protruding portion 114. In the embodiment of the present application, the arc-shaped chamfer process can keep the outer edge of the third protruding portion 115 as a circular ring, thereby reducing the friction with the contact pin. Further, the end of the first protruding portion 113 away from the second protruding portion 114 is connected with the body 10 in an arc shape.

[0043] In some embodiments, the second locking end 101 is provided with a first through hole 102 penetrating through the second locking end 101 along the second direction. Exemplarily, a rod member can sequentially penetrate through the contact pin push rod 2 and the second locking end 101, so that the contact pin push rod 2 can rotate with the first through hole 102 as a fulcrum.

[0044] Referring to Figure 1 and Figure 4 As shown, Figure 4 A side view of an embodiment of the contact pin fixing chuck 1 provided by the present application is shown.

[0045] In some embodiments, the body 10 is also provided with a plurality of elastic connection holes 103 spaced apart along the first direction, and the plurality of elastic connection holes 103 are located on the same side as the second locking end 101, so as to improve the connection stability between the contact pin fixing chuck 1 and the contact pin push rod 2. Exemplarily, Figure 4Three elastic connection holes 103 are shown in the middle, which can accommodate three elastic members (such as small springs), and let the two ends of the elastic members be connected with the pin fixing clamp 1 and the pin push rod 2 respectively, so that the pin push rod 2 can stably rotate.

[0046] Referring to Figure 5 and Figure 6 shown, Figure 5 A three-dimensional structural schematic diagram of an embodiment of the pin push rod 2 provided by the present application is shown. Figure 6 A connection schematic diagram of an embodiment of the pin mechanism provided by the present application is shown.

[0047] In some embodiments, the present application also provides a pin mechanism, which comprises the pin fixing clamp 1 for the PCB pin mechanism described above, and further comprises: a pin push rod 2, the pin push rod 2 comprises a containing groove 20 extending in a first direction, and a second through hole 200 penetrating through the containing groove 20 in a second direction, wherein the pin fixing clamp 1 is embedded in the containing groove 20, and the second locking end 101 is movably connected with the second through hole 200.

[0048] In the embodiments of the present application, the pin fixing clamp 1 is quickly installed through the containing groove 20, and the pin fixing clamp 1 and the containing groove 20 are rotatably connected by the first through hole 102 and the second through hole 200, so that the pin push rod 2 can be close to or away from the pin fixing clamp 1 when it is driven by an external driving force, thereby realizing clamping of the pin.

[0049] In some embodiments, the pin push rod 2 further comprises an abutting portion 21 capable of abutting against the limiting portion 11 of the fixing clamp, wherein the abutting portion 21 is provided with a pressure head 210 capable of being concave-convex matched with the limiting groove 112 of the limiting portion 11. In the embodiments of the present application, the pressure head 210 of the abutting portion 21 is embedded into the limiting groove 112 to realize clamping of the pin located in the limiting groove 112. Exemplarily, the elastic member is connected to the containing groove 20 through the elastic connection hole 103.

[0050] In some embodiments, the abutting portion 21 is further provided with a stop strip 212 in a third direction, and the stop strip 212 is located between the pressure head 210 and the containing groove 20 in the first direction. In the embodiments of the present application, the stop strip 212 is added to avoid the pin from being excessively elongated into the containing groove 20, in other words, the stop strip 212 is used to constrain the pin fixing clamp 1 and the pin push rod 2 to only clamp the upper end of the pin. Exemplarily, as shown in Figure 6 The first locking end 100 of the fixing clamp is located outside the limiting groove 112, so as to be used for locking the pin fixing clamp 1 to the pin mechanism.

[0051] As shown in Figure 7 , Figure 7 for Figure 6The local structure schematic view of the pressing head 210 is shown in FIG. 3. Further, the pressing head 210 is provided with a cutout 211 on both sides along the second direction, so that when the pressing part 21 is attached to the limiting part 11, the third protruding part 115 of the limiting part 11 is overlaid on the cutout 211.

[0052] In the embodiment of the present application, when the low-pressure part and the limiting part 11 are clamped on the pin, they can at least partially coincide, wherein the cutout 211 is arranged to ensure that the first protruding part 113 and the second protruding part 114 do not overlap the pressing head 210, so as to limit the degree of coincidence of the low-pressure part and the limiting part 11, and avoid excessive clamping of the pin, which can cause damage to the pin.

[0053] The above is only the embodiment of the present application, and does not limit the patent range of the present application. Any equivalent structure or equivalent process transformation, or direct or indirect application in other related technical fields, which is based on the content of the present application specification and drawings, should be within the protection scope of the present application.

Claims

1. A pin fixing collet for a PCB pin machine, characterized in that, The utility model relates to a fixing clamp head for PCB pin machine, comprising: a body, the body is provided with first locking end and second locking end in turn along first direction, the second locking end is used for with external pin push rod movable connection; limiting part, the limiting part includes first limiting plate and second limiting plate along first direction, wherein, the first limiting plate and the second limiting plate are spaced apart to form limiting slot along second direction; Wherein, the first locking end and the second locking end are arranged on both sides of the body along the third direction respectively, and the limiting part and the second locking end are located on the same side.

2. The pin fixing chuck for the PCB pin machine according to claim 1, wherein, The first limiting plate and the second limiting plate are provided with first convex part, second convex part and third convex part in turn along the first direction respectively, wherein the height of the third convex part along the third direction is greater than that of the first convex part, and the second convex part is connected with the first convex part and the third convex part respectively.

3. The pin fixing chuck for the PCB pin machine according to claim 2, wherein, The end of the third convex part away from the second convex part is provided with arc inner chamfer.

4. The pin fixing chuck for the PCB pin machine according to claim 2, wherein, The end of the first convex part away from the second convex part is connected with the body in arc.

5. The pin fixing chuck for the PCB pin machine according to claim 1, wherein, The second locking end is provided with first through hole penetrating through the second locking end along the second direction.

6. The pin fixing chuck for the PCB pin machine according to any one of claims 1 to 5, characterized in that, The body is further provided with a plurality of elastic connection holes spaced apart along the first direction, and the plurality of elastic connection holes are located on the same side as the second locking end.

7. A pin mechanism, characterized by The utility model relates to a fixing clamp head for PCB pin machine, comprising: pin push rod, the pin push rod includes accommodating groove extending along first direction and second through hole penetrating through the accommodating groove along second direction, wherein the pin fixing clamp head is embedded in the accommodating groove, and the second locking end is movably connected with the second through hole.

8. The pin mechanism of claim 7, wherein, The pin push rod further comprises a pressing portion capable of abutting against the limiting portion of the fixing clamp head, wherein the pressing portion is provided with a pressure head capable of concave-convex matching with the limiting slot of the limiting portion.

9. The pin mechanism of claim 8, wherein, The pressure head is provided with a cutout on both sides along the second direction, so that when the pressing portion is attached to the limiting portion, the third convex portion of the limiting portion is arranged on the cutout.

10. The pin mechanism of claim 8, wherein, The pressing portion is further provided with a stop strip along the third direction, and the stop strip is located between the pressure head and the accommodating groove along the first direction.

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