Conveying device for lead frame

Abstract

Disclosed in the present invention is a conveying device for a lead frame. The conveying device comprises a chute assembly (20), wherein the chute assembly (20) comprises a first chute wall member (21), a first chute bottom strip rail (22), a second chute bottom strip rail (23), a third chute bottom strip rail (24) and a second chute wall member (25); the first chute wall member (21), the first chute bottom strip rail (22), the second chute bottom strip rail (23), the third chute bottom strip rail (24) and the second chute wall member (25) together form a conveying chute, through which the lead frame can pass; the width of the conveying chute matches the width of the lead frame to be conveyed; the first chute bottom strip rail (22), the second chute bottom strip rail (23) and the third chute bottom strip rail (24) are used for supporting the lead frame; and the first chute wall member (21) and the second chute wall member (25) are used for blocking and limiting edges of the lead frame. The conveying device can significantly reduce the friction between the lead frame and the conveying chute during conveying.

Description

Conveying device of lead frame TECHNICAL FIELD

[0001] The present application relates to the field of semiconductor chip processing and packaging, and in particular to a conveying device for conveying lead frames. BACKGROUND

[0002] In the field of semiconductor chip processing and packaging, lead frames are thin plates in strip shape. In the process of semiconductor chip processing and packaging, a special conveying device is needed to convey the lead frames. The existing conveying device for conveying lead frames places the lead frames in a U-shaped groove, and the lead frames slide at the bottom of the groove to realize the conveying of the lead frames. However, in the conveying process, the entire lower surface of the lead frame is in contact with the bottom of the groove, and the lead frame slides relative to the bottom of the groove to generate sliding friction, which results in a large friction force of the lead frame conveying. In addition, in the process of sliding the lead frame in the groove, the lead frame is prone to tilting, that is, the extension direction of the lead frame is not consistent with the extension direction of the groove, but intersects with each other, which will result in a larger friction force of the lead frame conveying, and even cause the lead frame to be blocked.

[0003] In view of the above problems, how to provide a conveying device for conveying lead frames, which can reduce the friction force of the lead frame conveying, has become a technical problem to be solved by those skilled in the art. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a conveying device of lead frame, which can be used for conveying lead frames and can significantly reduce the friction force between the lead frames and the conveying slide groove in the conveying process.

[0005] To solve the above technical problems, the application adopts the following technical scheme:

[0006] The application provides a lead frame conveying device, which comprises a chute assembly; the chute assembly comprises a first slot wall piece, a first slot bottom rail, a second slot bottom rail, a third slot bottom rail and a second slot wall piece; the first slot wall piece comprises a first slot wall main body part and a first flange part, the first flange part is fixedly arranged at the lower end of the first slot wall main body part and protrudes inward relative to the first slot wall main body part, and a stepped part is arranged on the outer side of the first slot wall main body part; the first slot bottom rail comprises a first rail main body part, a first vertical wall and a second vertical wall, the first vertical wall and the second vertical wall are fixedly arranged on the upper end surface of the first rail main body part, the first vertical wall and the second vertical wall are parallel to each other, and the first vertical wall, the second vertical wall and the upper end surface of the first rail main body part form a U-shaped needle poking groove; the outer side of the first rail main body part of the first slot bottom rail is in close contact with the inner side of the first slot wall main body part of the first slot wall piece and is fixedly connected with the same, and the lower end of the first rail main body part of the first slot bottom rail is in abutment with the upper surface of the first flange part of the first slot wall piece, the first flange part of the first slot wall piece supports and limits the first slot bottom rail; the second slot bottom rail comprises a strip-shaped vertical rail part and at least two tail parts, all the tail parts are fixedly arranged at the lower end of the strip-shaped vertical rail part, all the tail parts extend outward relative to the strip-shaped vertical rail part, and all the tail parts are perpendicular to the strip-shaped vertical rail part; the second slot bottom rail is parallel to the first slot bottom rail and is provided with a first spacing therebetween; the third slot bottom rail comprises a third rail main body part and a horn part, the horn part is fixedly arranged at the corner where the upper end surface of the third rail main body part intersects with the inner side surface thereof, the third rail main body part and the horn part are both in the shape of a long rectangle, the cross section of the third rail main body part and the cross section of the horn part are mutually overlapped in the shape of a horn, the upper end surface of the horn part is higher than the upper end surface of the third rail main body part, the lower end surface of the horn part is lower than the upper end surface of the third rail main body part, the inner side surface of the horn part is located inside the inner side surface of the third rail main body part, the outer side surface of the horn part is located outside the inner side surface of the third rail main body part, and the outer side surface of the horn part is located inside the outer side surface of the third rail main body part; the second slot wall piece is a strip-shaped plate body; the first slot wall piece, the first slot bottom rail, the second slot bottom rail, the third slot bottom rail and the second slot wall piece are parallel to each other, the upper end surfaces of the first vertical wall, the second vertical wall, the strip-shaped vertical rail part and the horn part are located in the same horizontal plane, and the horizontal plane is a reference surface; the upper end surface of the first slot wall main body part of the first slot wall piece is higher than the reference surface, and the upper surface of the second slot wall piece is higher than the reference surface; the first slot wall piece, the first slot bottom rail, the second slot bottom rail, the third slot bottom rail and the second slot wall piece form a conveying chute capable of conveying the lead frame, the width of the conveying chute is matched with the width of the single-piece lead frame to be conveyed, the first slot bottom rail, the second slot bottom rail and the third slot bottom rail are used for supporting the lead frame, and the first slot wall piece and the second slot wall piece are used for shielding and limiting the edges of the lead frame.

[0007] Preferably, the conveying device further comprises a bearing unit; the bearing unit comprises a first base plate and a second base plate; the first base plate and the second base plate are both rectangular plate bodies; the second base plate comprises an inner sub-plate portion, a middle sub-plate portion and an outer sub-plate portion, the outer side surface of the inner sub-plate portion is fixedly connected with the inner side surface of the middle sub-plate portion, the outer side surface of the middle sub-plate portion is fixedly connected with the inner side surface of the outer sub-plate portion, the lower surfaces of the inner sub-plate portion, the middle sub-plate portion and the outer sub-plate portion are located in the same plane; in the vertical direction, the upper surface of the inner sub-plate portion is lower than the upper surface of the middle sub-plate portion, the upper surface of the inner sub-plate portion, the upper surface of the middle sub-plate portion and the inner side surface of the middle sub-plate portion are connected to form a first straight-angle step; in the vertical direction, the upper surface of the outer sub-plate portion is higher than the upper surface of the middle sub-plate portion, so that the upper surface of the middle sub-plate portion, the upper surface of the outer sub-plate portion and the inner side surface of the outer sub-plate portion are connected to form a second straight-angle step; the first base plate and the second base plate are both fixedly arranged relative to the ground.

[0008] Further preferably, the outer side surface of the first slot wall main portion of the first slot wall member is fitted with and fixedly connected with the inner side surface of the first base plate, and the intersection of the upper surface and the inner side surface of the first base plate is an inner upper corner thereof, the inner upper corner of the first base plate is engaged with the step portion of the first slot wall main portion, and the first base plate limits the first slot wall member; the upper surfaces of all the tail portions of the second slot bottom rail are fitted with and fixedly connected with the lower bottom surface of the second base plate; the lower bottom surface of the third rail main portion of the third slot bottom rail is fitted with and fixedly connected with the upper surface of the inner sub-plate portion of the second base plate, and the outer side surface of the third rail main portion is fitted with the inner side surface of the middle sub-plate portion, and the middle sub-plate portion limits the third rail main portion; the third slot bottom rail and the second slot bottom rail are parallel to each other and are arranged with a second spacing therebetween; the lower bottom surface of the second slot wall member is fitted with and fixedly connected with the upper surface of the middle sub-plate portion, and the lower bottom surface of the second slot wall member is higher than the upper surface of the third rail main portion, and the inner side surface of the second slot wall member is fitted with the outer side surface of the horn portion.

[0009] Preferably, the second slot bottom rail comprises two T-shaped tail portions fixedly arranged at the two ends of the strip-shaped vertical rail portion, and the end with a larger width of each tail portion in the extension direction of the strip-shaped vertical rail portion is fixedly connected with the lower end of the strip-shaped vertical rail portion, and the end with a smaller width of each tail portion in the extension direction of the strip-shaped vertical rail portion extends outward relative to the strip-shaped vertical rail portion.

[0010] Preferably, the intersection of the upper surface and the inner side surface of the first slot wall main portion of the first slot wall member is provided with a first chamfer, and the intersection of the upper surface and the inner side surface of the second slot wall member is provided with a second chamfer, and the first chamfer and the second chamfer facilitate the placement of the lead frame into the conveying chute.

[0011] Preferably, the conveying device further comprises a needle lifter, the needle lifter is arranged above the needle lifter groove of the first groove bottom rail in the vertical direction, and the needle tip of the needle lifter faces downward.

[0012] Preferably, the lengths of the first groove wall, the first groove bottom rail, the second groove bottom rail, the third groove bottom rail, and the second groove wall are all matched with the length of the single-piece lead frame.

[0013] Further preferably, the conveying device further comprises a width adjustment unit, the width adjustment unit comprises a motor, a lead screw, a nut bracket, a first linear slide rail, a second linear slide rail, a first sliding block, a second sliding block, and a nut; the motor is fixedly arranged on the lower bottom surface of the second base plate; the lead screw is arranged below the first base plate and the second base plate, the lead screw is fixedly connected with the output shaft of the motor, and the lead screw and the output shaft of the motor are located on the same straight line; the nut bracket is fixedly arranged on the lower bottom surface of the first base plate, the nut is fixedly arranged on the nut bracket, the nut is sleeved on the lead screw, and the internal threads of the nut can be engaged with the external threads of the lead screw to realize threaded connection; the first linear slide rail and the second linear slide rail both have an overall elongated cuboid shape; the first sliding block and the second sliding block are both fixedly arranged on the lower bottom surface of the first base plate, the back surface of each of the first sliding block and the second sliding block is provided with a U-shaped opening, the first linear slide rail is engaged in the U-shaped opening of the first sliding block, so that the first sliding block can slide along the first linear slide rail, the second linear slide rail is engaged in the U-shaped opening of the second sliding block, so that the second sliding block can slide along the second linear slide rail, and the first linear slide rail and the second linear slide rail are parallel to each other, and the first linear slide rail and the second linear slide rail are both fixedly arranged relative to the ground.

[0014] Further preferably, the conveying device further comprises a base fixedly arranged relative to the ground, the base has a U-shaped structure; the first base plate is movably arranged on the two vertical arms of the base, and the extension direction of the first base plate is perpendicular to the extension direction of the two vertical arms of the base; the first linear slide rail and the second linear slide rail of the width adjustment unit are fixedly arranged on the upper end surfaces of the two vertical arms of the base, respectively, and the extension direction of the first linear slide rail and the second linear slide rail is consistent with the extension direction of the upper end surfaces of the two vertical arms of the base; the second base plate is fixedly arranged on the upper end surfaces of the two vertical arms of the base, and the extension direction of the second base plate is perpendicular to the extension direction of the upper end surfaces of the two vertical arms of the base.

[0015] Further preferably, the conveying device further comprises an alignment mechanism; the second base plate is provided with a U-shaped notch at the outer side edge, the alignment mechanism is arranged in the notch of the second base plate, and the alignment mechanism is fixedly connected with the second base plate; the notch truncates each of the middle sub-plate part and the outer side sub-plate part of the second base plate into two parts; accordingly, the second slot wall part comprises a second slot wall left branch and a second slot wall right branch, the cross sections of the second slot wall left branch and the second slot wall right branch are the same, the second slot wall left branch is arranged at the left side of the notch, and the second slot wall right branch is arranged at the right side of the notch; the outer side of the third slot bottom track is provided with a pit, the upper end of the pit is open and the lower end is closed, the outer side of the pit is open and the inner side is closed, the inner side wall of the pit is located at the inner side of the outer side face of the horn part, and the inner side wall of the pit is located at the outer side of the inner side face of the horn part; the pit of the third slot bottom track is opposite to the position of the notch of the second base plate, so that the front end of the alignment mechanism can enter the pit of the third slot bottom track when the alignment mechanism moves forward.

[0016] Further preferably, the alignment mechanism comprises a car-shaped base, a third linear slide rail, a third sliding block, a pistol-shaped piece, a right-angle piece, a pneumatic cylinder, and a spring; the car-shaped base comprises a car bottom plate part, a partition plate part, a first car compartment side plate part, a second car compartment side plate part, a first lug part, and a second lug part; the car bottom plate part is overall rectangular; the lower ends of the first car compartment side plate part and the second car compartment side plate part are respectively fixedly arranged at the two side edges of the front face of the car bottom plate part, and the first car compartment side plate part and the second car compartment side plate part are both perpendicular to the car bottom plate part and parallel to each other; the partition plate part is L-shaped, and the partition plate part is fixedly arranged at the middle position of the front face of the car bottom plate part, the plane where the partition plate part is located is perpendicular to the car bottom plate part, and the plane where the partition plate part is located is parallel to the first car compartment side plate part; the first lug part is fixedly arranged at the upper end of the first car compartment side plate part and extends outward relative to the first car compartment side plate part, and the first lug part is perpendicular to the first car compartment side plate part; the second lug part is fixedly arranged at the upper end of the second car compartment side plate part and extends outward relative to the second car compartment side plate part, and the second lug part is perpendicular to the second car compartment side plate part; the pistol-shaped piece comprises a gun body part, a barrel part, and a trigger part, the gun body part is overall cuboid-shaped, the barrel part is quadrangular prism-shaped, the barrel part is fixedly arranged at the front end of the gun body part, the length of the barrel part is greater than that of the gun body part, the barrel part extends from the left and right sides of the gun body part, and the length of the part of the barrel part extending from the left side of the gun body part is greater than that of the part of the barrel part extending from the right side of the gun body part; the rear end of the gun body part is fixedly arranged with the trigger part, the trigger part is fixedly arranged on the left side face of the gun body part and extends to the left side relative to the gun body part; the back face of the barrel part is flush with the back face of the gun body part, the back faces of the barrel part and the gun body part are provided with a U-shaped first groove; the thickness of the barrel part is less than that of the gun body part, a forwardly protruding lug part is fixedly arranged at the front end of the gun body part and above the barrel part, and a second groove is formed between the lug part and the barrel part; the third linear slide rail is fixedly arranged at the front face of the car bottom plate part and located between the second car compartment side plate part and the partition plate part; the back face of the third sliding block is provided with a U-shaped opening, the third linear slide rail is engaged in the U-shaped opening of the third sliding block, so that the third sliding block can slide along the third linear slide rail; the front face of the third sliding block is engaged in the first groove of the back face of the pistol-shaped piece and fixedly connected thereto; the barrel part of the pistol-shaped piece is transversely arranged at the front end of the car-shaped base, and the barrel part is located in front of the partition plate part, the first car compartment side plate part, and the second car compartment side plate part; the right-angle piece comprises two right-angle plates fixedly connected into a right angle; the right-angle piece is buckled on the barrel part of the pistol-shaped piece, the right-angle plate of the right-angle piece along the horizontal direction is attached to the upper end face of the barrel part and fixedly connected thereto, and the right-angle plate of the right-angle piece along the vertical direction is attached to the front side face of the barrel part; the pneumatic cylinder is fixedly arranged at the front face of the car bottom plate part of the car-shaped base and located between the partition plate part and the first car compartment side plate part; and the spring is arranged between the third sliding block and the first lug part.The power output end of the cylinder is located at the front end of the cylinder, and the power output end of the cylinder abuts against the rear side of the barrel part of the gun-shaped piece, so that the cylinder can exert a forward thrust on the barrel part of the gun-shaped piece; one end of the spring is fixedly connected with the rear side of the vertical arm of the partition part, and the other end of the spring is fixedly connected with the front side of the trigger part of the gun-shaped piece; in the case where the forward thrust exerted by the cylinder on the barrel part of the gun-shaped piece disappears, the elastic force of the spring can reset the barrel part of the gun-shaped piece; the first lug part and the second lug part of the car-shaped base are fixedly connected with the two sides of the notch of the second base plate respectively, so that the alignment mechanism is fixedly connected with the second base plate.

[0017] Further preferably, the alignment mechanism further comprises a sensor, the sensor is fixedly arranged on the second base plate, and the sensor is located between the second groove wall piece and the second groove bottom strip rail, and the sensor is used for detecting whether there is a lead frame in the conveying chute; when the sensor detects that there is a lead frame in the conveying chute, the cylinder is started and the power output end thereof exerts a forward thrust on the barrel part of the gun-shaped piece, the gun-shaped piece drives the third sliding block to move linearly forward along the third straight linear rail under the action of the thrust of the cylinder, the barrel part further exerts a forward thrust on the right-angle piece, the right-angle plate of the right-angle piece in the vertical direction moves forward and enters the recess in the third groove bottom strip rail, and the right-angle plate of the right-angle piece in the vertical direction exerts a forward thrust on the edge of the lead frame in the recess of the third groove bottom strip rail, so that the edge of the lead frame is parallel to the first groove wall piece, the first groove bottom strip rail, the second groove bottom strip rail and the third groove bottom strip rail of the chute assembly.

[0018] Unless otherwise specified, the raw materials in the present application can be obtained by commercial purchase, and the equipment used in the present application can adopt conventional equipment in the field or refer to the existing technology in the field.

[0019] Compared with the prior art, the present application has the following beneficial effects:

[0020] (1) The lead frame conveying device provided by the present application comprises a chute assembly, the chute assembly comprises a first groove wall piece, a first groove bottom strip rail, a second groove bottom strip rail, a third groove bottom strip rail and a second groove wall piece, and a conveying chute for conveying a lead frame is formed by the above-mentioned components of the chute assembly, the groove bottom of the conveying chute is actually composed of the first groove bottom strip rail, the second groove bottom strip rail and the third groove bottom strip rail which are separated from each other, the lower surface of the lead frame in the conveying process is in contact with the upper end surfaces of the above-mentioned three strip rails constituting the groove bottom of the conveying chute and slides relative to each other, and compared with the prior conveying chute with a completely closed and connected integral plate shape, the contact area between the lead frame and the groove bottom of the conveying chute is significantly reduced, so that the friction between the lead frame and the conveying chute is significantly reduced.

[0021] (2) The lead frame conveying device provided by the present application comprises a width adjusting unit, which can adjust the width of the conveying chute according to the width of the lead frame so as to match the two, thus making the conveying device applicable to lead frames of different widths.

[0022] (3) The lead frame conveying device provided by the present application comprises an alignment mechanism, which can make the edge of the lead frame parallel to the first slot wall piece, the first slot bottom strip rail, the second slot bottom strip rail and the third slot bottom strip rail of the chute assembly, i.e. can realize alignment of the edge of the lead frame. BRIEF DESCRIPTION OF DRAWINGS

[0023] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings

[0024] Fig. 1 is a perspective view of the lead frame conveying device provided by the embodiment of the present application;

[0025] Fig. 2 is an exploded view of the lead frame conveying device provided by the embodiment of the present application;

[0026] Fig. 3 is a partial exploded view of the chute assembly of the lead frame conveying device provided by the embodiment of the present application;

[0027] Fig. 4 is another partial exploded view of the chute assembly of the lead frame conveying device provided by the embodiment of the present application;

[0028] Fig. 5 is a partial perspective view of the chute assembly of the lead frame conveying device provided by the embodiment of the present application;

[0029] Fig. 6 is a sectional view of the chute assembly of the lead frame conveying device provided by the embodiment of the present application;

[0030] Fig. 7 is a perspective view of the width adjusting unit of the lead frame conveying device provided by the embodiment of the present application;

[0031] Fig. 8 is a perspective view of the lead frame conveying device provided by the embodiment of the present application in a case containing a base;

[0032] Fig. 9 is a partial exploded view of the chute assembly of the lead frame conveying device provided by the embodiment of the present application;

[0033] Fig. 10 is a partial top view of the chute assembly of the lead frame conveying device provided by the embodiment of the present application;

[0034] Fig. 11 is a perspective view of the third slot bottom strip rail of the chute assembly of the lead frame conveying device provided by the embodiment of the present application;

[0035] Fig. 12 is a partial perspective view of a third slot bottom rail of a chute assembly of the lead frame conveying device according to an embodiment of the present application;

[0036] Fig. 13 is a perspective view of an alignment mechanism of the lead frame conveying device according to an embodiment of the present application;

[0037] Fig. 14 is an exploded view of the alignment mechanism of the lead frame conveying device according to an embodiment of the present application;

[0038] Fig. 15 is a perspective view of a carriage base of the alignment mechanism of the lead frame conveying device according to an embodiment of the present application;

[0039] Fig. 16 is a perspective view of a pistol of the alignment mechanism of the lead frame conveying device according to an embodiment of the present application;

[0040] Fig. 17 is another perspective view of the pistol of the alignment mechanism of the lead frame conveying device according to an embodiment of the present application. DETAILED DESCRIPTION

[0041] In order to more clearly illustrate the present application, the present application will be further described below with reference to the preferred embodiments. It should be understood by those skilled in the art that the specific description below is illustrative rather than limiting and is not intended to limit the scope of the present application.

[0042] As shown in Figs. 1 and 2, the lead frame conveying device according to the present embodiment includes a carrying unit 10 and a chute assembly 20, and is used for conveying a lead frame.

[0043] As shown in FIG. 1 and FIG. 2, the bearing unit 10 comprises a first base plate 11 and a second base plate 12; the first base plate 11 and the second base plate 12 are both rectangular plate bodies; the second base plate 12 comprises an inner sub-plate part 12-1, a middle sub-plate part 12-2 and an outer sub-plate part 12-3, the outer side surface of the inner sub-plate part 12-1 is fixedly connected with the inner side surface of the middle sub-plate part 12-2, the outer side surface of the middle sub-plate part 12-2 is fixedly connected with the inner side surface of the outer sub-plate part 12-3, the lower surfaces of the inner sub-plate part 12-1, the middle sub-plate part 12-2 and the outer sub-plate part 12-3 are located in the same plane (i.e. the lower surface of the second base plate 12); along the vertical direction, the upper surface of the inner sub-plate part 12-1 is lower than the upper surface of the middle sub-plate part 12-2, the upper surface of the inner sub-plate part 12-1, the upper surface of the middle sub-plate part 12-2 and the inner side surface 12-4 of the middle sub-plate part 12-2 are connected to form a first-stage right-angle step; along the vertical direction, the upper surface of the outer sub-plate part 12-3 is higher than the upper surface of the middle sub-plate part 12-2, so that the upper surface of the middle sub-plate part 12-2, the upper surface of the outer sub-plate part 12-3 and the inner side surface 12-5 of the outer sub-plate part 12-3 are connected to form a second-stage right-angle step; the first base plate 11 and the second base plate 12 are both fixedly arranged relative to the ground.

[0044] As shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 4, the chute assembly 20 comprises a first chute wall part 21, a first chute bottom rail 22, a second chute bottom rail 23, a third chute bottom rail 24 and a second chute wall part 25.

[0045] The first chute wall part 21 comprises a first chute wall main part 21-1 and a first flange part 21-2, the first flange part 21-2 is fixedly arranged at the lower end of the first chute wall main part 21-1 and protrudes inward relative to the first chute wall main part 21-1, and the outer side surface of the first chute wall main part 21-1 is provided with a step part 21-3; the first chute bottom rail 22 comprises a first rail main part 22-1, a first vertical wall 22-2 and a second vertical wall 22-3, the first vertical wall 22-2 and the second vertical wall 22-3 are both fixedly arranged at the upper end surface of the first rail main part 22-1, the first vertical wall 22-2 and the second vertical wall 22-3 are parallel to each other, and the first vertical wall 22-2, the second vertical wall 22-3 and the upper end surface of the first rail main part 22-1 form a U-shaped needle poking groove 22-4.

[0046] As shown in FIG. 3, FIG. 4, FIG. 5 and FIG. 6, the outer side surface of the first rail main part 22-1 of the first chute bottom rail 22 is in close fit with the inner side surface of the first chute wall main part 21-1 of the first chute wall part 21 and they are fixedly connected, and the lower end of the first rail main part 22-1 of the first chute bottom rail 22 is in abutment with the upper surface of the first flange part 21-2 of the first chute wall part 21, and the first flange part 21-2 of the first chute wall part 21 supports and limits the first chute bottom rail 22.

[0047] The second groove bottom rail 23 includes a strip-shaped vertical rail portion 23-1 and at least two tail portions 23-2, all of the tail portions 23-2 are fixedly arranged at the lower end of the strip-shaped vertical rail portion 23-1, all of the tail portions 23-2 extend outward relative to the strip-shaped vertical rail portion 23-1, and all of the tail portions 23-2 are perpendicular to the strip-shaped vertical rail portion 23-1. In the embodiment, the second groove bottom rail 23 includes, for example, two T-shaped tail portions 23-2 (as shown in FIG. 2), which are respectively fixedly arranged at the two ends of the strip-shaped vertical rail portion 23-1, and the wider end of each tail portion 23-2 along the extension direction of the strip-shaped vertical rail portion 23-1 is fixedly connected with the lower end of the strip-shaped vertical rail portion 23-1, and the narrower end of each tail portion 23-2 along the extension direction of the strip-shaped vertical rail portion 23-1 extends outward relative to the strip-shaped vertical rail portion 23-1; the second groove bottom rail 23 is parallel to the first groove bottom rail 22 and a first spacing is arranged between the two.

[0048] As shown in FIGS. 9 and 10, the third groove bottom rail 24 includes a third rail body portion 24-1 and a horn portion 24-2, the horn portion 24-2 is fixedly arranged at the corner where the upper end face of the third rail body portion 24-1 intersects with the inner side face thereof, the cross sections of the third rail body portion 24-1 and the horn portion 24-2 are all rectangular, and the cross section of the third rail body portion 24-1 and the cross section of the horn portion 24-2 are mutually overlapped in a horn shape, the upper end face of the horn portion 24-2 is higher than the upper end face of the third rail body portion 24-1, the lower end face of the horn portion 24-2 is lower than the upper end face of the third rail body portion 24-1, the inner side face of the horn portion 24-2 is located inward of the inner side face of the third rail body portion 24-1, the outer side face of the horn portion 24-2 is located outward of the inner side face of the third rail body portion 24-1, and the outer side face of the horn portion 24-2 is located inward of the outer side face of the third rail body portion 24-1. The second groove wall member 25 is a strip-shaped plate body.

[0049] As shown in FIG. 6, the outer side surface of the first slot wall main body part 21-1 of the first slot wall part 21 is attached to and fixedly connected with the inner side surface of the first base plate 11, and the intersection of the upper surface and the inner side surface of the first base plate 11 is the inner upper corner of the first base plate 11, the inner upper corner of the first base plate 11 is clamped with the step part 21-3 of the first slot wall main body part 21-1, and the first base plate 11 limits the first slot wall part 21; the upper surface of all the tail parts 23-2 of the second slot bottom rail 23 is attached to and fixedly connected with the lower bottom surface of the second base plate 12; the lower bottom surface of the third rail main body part 24-1 of the third slot bottom rail 24 is attached to and fixedly connected with the upper surface of the inner side sub-plate part 12-1 of the second base plate 12, and the outer side surface of the third rail main body part 24-1 is attached to the inner side surface 12-4 of the middle sub-plate part 12-2, and the middle sub-plate part 12-2 limits the third rail main body part 24-1; the third slot bottom rail 24 is parallel to the second slot bottom rail 23, and a second spacing is arranged between the third slot bottom rail 24 and the second slot bottom rail 23; the lower bottom surface of the second slot wall part 25 is attached to and fixedly connected with the upper surface of the middle sub-plate part 12-2, and the lower bottom surface of the second slot wall part 25 is higher than the upper surface of the third rail main body part 24-1, and the inner side surface of the second slot wall part 25 is attached to the outer side surface of the horn part 24-2.

[0050] The first slot wall part 21, the first slot bottom rail 22, the second slot bottom rail 23, the third slot bottom rail 24, and the second slot wall part 25 are parallel to each other, the upper end surfaces of the first vertical wall 22-2, the second vertical wall 22-3, the strip-shaped vertical rail part 23-1, and the horn part 24-2 are located in the same horizontal plane (i.e., the upper end surfaces of the four parts are flush), and the horizontal plane is the reference surface; the upper end surface of the first slot wall main body part 21-1 of the first slot wall part 21 is higher than the reference surface, and the upper surface of the second slot wall part 25 is higher than the reference surface; the first slot wall part 21, the first slot bottom rail 22, the second slot bottom rail 23, the third slot bottom rail 24, and the second slot wall part 25 form a conveying chute (hereinafter referred to as “conveying chute”) capable of conveying the lead frame, and the width of the conveying chute matches the width of the single-piece lead frame to be conveyed, the first slot bottom rail 22, the second slot bottom rail 23, and the third slot bottom rail 24 are used to support the lead frame, and the first slot wall part 21 and the second slot wall part 25 are used to shield and limit the edges of the lead frame. In a preferred embodiment of the present embodiment, the lengths of the first slot wall part 21, the first slot bottom rail 22, the second slot bottom rail 23, the third slot bottom rail 24, and the second slot wall part 25 all match the length of the single-piece lead frame.

[0051] In a preferred embodiment of the present embodiment, the first chamfer is arranged at the intersection between the upper surface of the first slot wall body part 21-1 of the first slot wall part 21 and the inner side surface thereof, and the second chamfer is arranged at the intersection between the upper surface of the second slot wall part 25 and the inner side surface thereof, so as to facilitate the placement of the lead frame into the conveying chute.

[0052] It should be noted that in the above description of the carrying unit 10 and the chute assembly 20 of the present embodiment, the definitions of "inner", "outer", "inner side" and "outer side" are all based on the center line of the conveying chute formed by the chute assembly 20, and the closer to the center line, the closer to the inner side, and vice versa.

[0053] In a preferred embodiment of the present embodiment, as shown in FIGS. 1, 2 and 6, the conveying device further comprises a needle 40, which is arranged above the needle groove 22-4 of the first slot bottom rail 22 in the vertical direction, and the needle tip of the needle 40 is downward.

[0054] In use, the lead frame to be conveyed is placed in the conveying chute (the placement of the lead frame is not shown in the figure), the lead frame is located between the first slot wall part 21 and the second slot wall part 25, and the lead frame is located above the first slot bottom rail 22, the second slot bottom rail 23 and the third slot bottom rail 24 of the chute assembly 20, the needle 40 is driven downward by external force so that the needle tip penetrates the through hole of the lead frame edge and then penetrates into the needle groove 22-4 of the first slot bottom rail 22 (the downward movement of the needle 40 so that the needle tip penetrates the through hole of the lead frame edge is not shown in the figure), the needle 40 is linearly moved along the needle groove 22-4 under the driving of external force, and the needle 40 further drives the lead frame to linearly move along the conveying chute formed by the chute assembly 20, thereby realizing the conveying of the lead frame.

[0055] In another preferred embodiment of the present embodiment, as shown in FIG. 7, the conveying device further comprises a width adjustment unit 60, which comprises a motor 61, a lead screw 62, a nut bracket 63, a first linear slide rail 64, a second linear slide rail 65, a first sliding block 66, a second sliding block 67, and a nut 68.

[0056] The motor 61 is fixedly arranged on the lower bottom surface of the second substrate 12; the lead screw 62 is arranged below the first substrate 11 and the second substrate 12, the output shaft of the motor 61 is fixedly connected with the lead screw 62, and the output shaft of the motor 61 is located on the same straight line as the lead screw 62; the nut support 63 is fixedly arranged on the lower bottom surface of the first substrate 11, the nut 68 is fixedly arranged on the nut support 63, the nut 68 is sleeved on the lead screw 62, and the internal thread of the nut 68 can be engaged with the external thread of the lead screw 62 to realize threaded connection; the first linear slide rail 64 and the second linear slide rail 65 are both in the shape of an elongated cuboid; the first sliding block 66 and the second sliding block 67 are both fixedly arranged on the lower bottom surface of the first substrate 11, the back surface of each of the first sliding block 66 and the second sliding block 67 is provided with a U-shaped opening, the first linear slide rail 64 is clamped in the U-shaped opening of the first sliding block 66, so that the first sliding block 66 can slide along the first linear slide rail 64, the second linear slide rail 65 is clamped in the U-shaped opening of the second sliding block 67, so that the second sliding block 67 can slide along the second linear slide rail 65, and the first linear slide rail 64 and the second linear slide rail 65 are parallel to each other, and the first linear slide rail 64 and the second linear slide rail 65 are both fixedly arranged relative to the ground.

[0057] In use, the motor 61 drives the lead screw 62 to rotate, so that the nut 68 and the nut support 63 move linearly relative to the lead screw 62, the nut support 63 drives the first substrate 11 to move, and the first substrate 11 in turn drives the first sliding block 66 and the second sliding block 67 to move linearly along the first linear slide rail 64 and the second linear slide rail 65 respectively, so that the first substrate 11 can move close to or away from the second substrate 12, thereby realizing adjustment of the distance between the first substrate 11 and the second substrate 12, that is, adjustment of the width of the conveying chute.

[0058] In a further preferred embodiment of the present embodiment, as shown in FIG. 8, the conveying device further comprises a base 50 fixedly arranged relative to the ground, the base 50 is in the shape of a U; the first substrate 11 is movably arranged on the two vertical arms of the base 50, and the extension direction of the first substrate 11 is perpendicular to the extension direction of the two vertical arms of the base 50; the first linear slide rail 64 and the second linear slide rail 65 of the width adjustment unit 60 are fixedly arranged on the upper end surfaces of the two vertical arms of the base 50 respectively, and the extension direction of the first linear slide rail 64 and the second linear slide rail 65 is consistent with the extension direction of the upper end surfaces of the two vertical arms of the base 50; the second substrate 12 is fixedly arranged on the upper end surfaces of the two vertical arms of the base 50, and the extension direction of the second substrate 12 is perpendicular to the extension direction of the upper end surfaces of the two vertical arms of the base 50 (the extension direction of the second substrate 12 is parallel to the extension direction of the first substrate 11).

[0059] As can be easily understood by those skilled in the art, when the lead frame is conveyed by the conveying device, the edge of the lead frame should be parallel to the first slot wall member 21, the first slot bottom rail 22, the second slot bottom rail 23 and the third slot bottom rail 24 of the slide groove assembly 20. However, when the lead frame is conveyed by the conveying device, the lead frame located in the conveying slide groove is prone to be inclined, i.e. the edge of the lead frame intersects with any one of the first slot wall member 21, the first slot bottom rail 22, the second slot bottom rail 23 and the third slot bottom rail 24 of the slide groove assembly 20 instead of being parallel to them.

[0060] To solve the technical problem of the inclined lead frame, the embodiment further provides an alignment mechanism 30 which is applicable to the conveying device. As shown in FIG. 9 and FIG. 10, a U-shaped notch 13 is arranged at the outer side edge of the second base plate 12, the alignment mechanism 30 is arranged in the notch 13 of the second base plate 12, and the alignment mechanism 30 is fixedly connected with the second base plate 12. The notch 13 divides the middle sub-plate part 12-2 of the second base plate 12 into two parts; the notch 13 divides the outer side sub-plate part 12-3 of the second base plate 12 into two parts. Correspondingly, the second slot wall member 25 includes a second slot wall left branch 25-1 and a second slot wall right branch 25-2, the cross sections of the second slot wall left branch 25-1 and the second slot wall right branch 25-2 are the same, the second slot wall left branch 25-1 is arranged at the left side of the notch 13, and the second slot wall right branch 25-2 is arranged at the right side of the notch 13.

[0061] As shown in FIG. 10, FIG. 11 and FIG. 12, the outer side of the third slot bottom rail 24 is provided with a pit 24-3, the upper end of the pit 24-3 is open and the lower end is closed, the outer side of the pit 24-3 is open and the inner side is closed, the inner side wall of the pit 24-3 is located at the inner side of the outer side face of the horn part 24-2, and the inner side wall of the pit 24-3 is located at the outer side of the inner side face of the horn part 24-2. The pit 24-3 of the third slot bottom rail 24 is opposite to the position of the notch 13 of the second base plate 12, so that the front end of the alignment mechanism 30 can enter the pit 24-3 of the third slot bottom rail 24 when the alignment mechanism 30 moves forward.

[0062] As shown in FIG. 13 and FIG. 14, the alignment mechanism 30 includes a car-shaped base 31, a third straight line slide rail 32, a third slide block 33, a pistol-shaped part 34, a right-angle part 35, a gas cylinder 36 and a spring 37.

[0063] As shown in FIG. 15, the car-shaped base 31 comprises a car bottom plate part 31-1, a partition plate part 31-2, a first car compartment side plate part 31-3, a second car compartment side plate part 31-4, a first lug part 31-5 and a second lug part 31-6. The car bottom plate part 31-1 is in the shape of a rectangle as a whole; the lower ends of the first car compartment side plate part 31-3 and the second car compartment side plate part 31-4 are fixedly arranged at the two side edges of the front face of the car bottom plate part 31-1 respectively, the first car compartment side plate part 31-3 and the second car compartment side plate part 31-4 are both perpendicular to the car bottom plate part 31-1, and the first car compartment side plate part 31-3 is parallel to the second car compartment side plate part 31-4; the partition plate part 31-2 is in the shape of L, the partition plate part 31-2 is fixedly arranged at the middle position of the front face of the car bottom plate part 31-1, the plane where the partition plate part 31-2 is located is perpendicular to the car bottom plate part 31-1, and the plane where the partition plate part 31-2 is located is parallel to the first car compartment side plate part 31-3 (or the second car compartment side plate part 31-4); the first lug part 31-5 is fixedly arranged at the upper end of the first car compartment side plate part 31-3 and extends outward relative to the first car compartment side plate part 31-3, and the first lug part 31-5 is perpendicular to the first car compartment side plate part 31-3; the second lug part 31-6 is fixedly arranged at the upper end of the second car compartment side plate part 31-4 and extends outward relative to the second car compartment side plate part 31-4, and the second lug part 31-6 is perpendicular to the second car compartment side plate part 31-4.

[0064] As shown in FIG. 16 and FIG. 17, the pistol-shaped piece 34 comprises a gun body part 34-1, a gun barrel part 34-2 and a trigger part 34-3, the gun body part 34-1 is in the shape of a cuboid as a whole, the gun barrel part 34-2 is in the shape of a quadrangular prism, the gun barrel part 34-2 is fixedly arranged at the front end of the gun body part 34-1, the length of the gun barrel part 34-2 is greater than that of the gun body part 34-1, the gun barrel part 34-2 extends from the left and right sides of the gun body part 34-1, and the length of the part of the gun barrel part 34-2 extending from the left side of the gun body part 34-1 is greater than that of the part of the gun barrel part 34-2 extending from the right side of the gun body part 34-1; the rear end of the gun body part 34-1 is fixedly arranged with the trigger part 34-3, the trigger part 34-3 is fixedly arranged on the left side face of the gun body part 34-1 and extends to the left side relative to the gun body part 34-1; the back face of the gun barrel part 34-2 is flush with the back face of the gun body part 34-1, the back faces of the gun barrel part 34-2 and the gun body part 34-1 are arranged with a first U-shaped groove 34-4; the thickness of the gun barrel part 34-2 is less than that of the gun body part 34-1, a forwardly protruding flange part 34-5 is fixedly arranged at the front end of the gun body part 34-1 and above the gun barrel part 34-2, and a second groove 34-6 is formed between the flange part 34-5 and the gun barrel part 34-2.

[0065] The third linear slide rail 32 is fixedly arranged on the front surface of the car bottom plate part 31-1, and is located between the second car side plate part 31-4 and the partition plate part 31-2. The back surface of the third sliding block 33 is provided with a U-shaped opening, and the third linear slide rail 32 is clamped in the U-shaped opening of the third sliding block 33, so that the third sliding block 33 can slide along the third linear slide rail 32. The front surface of the third sliding block 33 is clamped in the first groove 34-4 on the back surface of the pistol-shaped part 34 and is fixedly connected with the pistol-shaped part 34. The barrel part 34-2 of the pistol-shaped part 34 is transversely arranged at the front end of the car-shaped base 31, and is located in front of the partition plate part 31-2, the first car side plate part 31-3 and the second car side plate part 31-4.

[0066] The right-angle part 35 includes two right-angle plates fixedly connected with each other to form a right angle. The right-angle part 35 is clamped on the barrel part 34-2 of the pistol-shaped part 34, the right-angle plate along the horizontal direction of the right-angle part 35 is attached to the upper end surface of the barrel part 34-2 and is fixedly connected with the barrel part 34-2, and the right-angle plate along the vertical direction of the right-angle part 35 is attached to the front side surface of the barrel part 34-2.

[0067] The cylinder 36 is fixedly arranged on the front surface of the car bottom plate part 31-1 of the car-shaped base 31, and is located between the partition plate part 31-2 and the first car side plate part 31-3. The power output end of the cylinder 36 is located at the front end thereof, and the power output end of the cylinder 36 abuts against the rear side surface of the barrel part 34-2 of the pistol-shaped part 34, so that the cylinder 36 can exert a forward thrust on the barrel part 34-2 of the pistol-shaped part 34.

[0068] One end of the spring 37 is fixedly connected with the rear side surface of the vertical arm of the partition plate part 31-2, and the other end of the spring 37 is fixedly connected with the front side surface of the trigger part 34-3 of the pistol-shaped part 34. In the case where the forward thrust exerted by the cylinder 36 on the barrel part 34-2 of the pistol-shaped part 34 disappears, the elastic force of the spring 37 can reset the barrel part 34-2 of the pistol-shaped part 34.

[0069] The first lug part 31-5 and the second lug part 31-6 of the car-shaped base 31 are respectively fixedly connected with the two sides of the notch 13 of the second base plate 12, so that the alignment mechanism 30 is fixedly connected with the second base plate 12.

[0070] In a further preferred embodiment of the present embodiment, the alignment mechanism 30 further includes a sensor 38 fixedly arranged on the second base plate 12 and located between the second groove wall part 25 and the second groove bottom strip rail 23. The sensor 38 is used to detect whether there is a lead frame in the conveying chute.

[0071] When the sensor 38 detects the lead frame in the conveying chute, the cylinder 36 is activated and its power output end applies a forward pushing force to the barrel part 34-2 of the gun-shaped part 34, the gun-shaped part 34 drives the third sliding block 33 to move linearly forward along the third linear sliding rail 32 under the pushing force of the cylinder 36, the barrel part 34-2 in turn applies a forward pushing force to the right-angle part 35, the right-angle plate of the right-angle part 35 in the vertical direction moves forward and enters the recess 24-3 of the third groove bottom strip rail 24, the right-angle plate of the right-angle part 35 in the vertical direction applies a forward pushing force to the edge of the lead frame in the recess 24-3 of the third groove bottom strip rail 24, so that the edge of the lead frame is parallel to the first groove wall part 21, the first groove bottom strip rail 22, the second groove bottom strip rail 23 and the third groove bottom strip rail 24 of the chute assembly 20, that is, the edge alignment of the lead frame is achieved.

[0072] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the embodiments of the present application. Based on the above description, other different forms of changes or variations can be made by those skilled in the art. It is impossible to enumerate all the embodiments here. Any obvious changes or variations derived from the technical solutions of the present application are still within the protection scope of the present application.

Claims

1. A lead frame conveying device, characterized in that, The conveying device includes a chute assembly (20); the chute assembly (20) includes a first chute wall member (21), a first chute bottom rail (22), a second chute bottom rail (23), a third chute bottom rail (24), and a second chute wall member (25); The first groove wall component (21) includes a first groove wall main body (21-1) and a first flange (21-2). The first flange (21-2) is fixedly disposed at the lower end of the first groove wall main body (21-1) and protrudes inward relative to the first groove wall main body (21-1). The outer side of the first groove wall main body (21-1) is provided with a step (21-3). The first groove bottom rail (22) includes a first rail main body (22-1) and a first vertical rail. The first vertical wall (22-2) and the second vertical wall (22-3) are fixedly disposed on the upper end face of the first rail main body (22-1). The first vertical wall (22-2) and the second vertical wall (22-3) are parallel to each other, and the upper end face of the first vertical wall (22-2), the second vertical wall (22-3) and the first rail main body (22-1) form a U-shaped needle groove (22-4). The outer side of the first rail body (22-1) of the first groove bottom rail (22) is in contact with the inner side of the first groove wall body (21-1) of the first groove wall member (21) and the two are fixedly connected. The lower end of the first rail body (22-1) of the first groove bottom rail (22) abuts against the upper surface of the first flange (21-2) of the first groove wall member (21). The first flange (21-2) of the first groove wall member (21) provides support and limit for the first groove bottom rail (22). The second bottom rail (23) includes a strip-shaped vertical rail section (23-1) and at least two tail sections (23-2). All tail sections (23-2) are fixedly disposed at the lower end of the strip-shaped vertical rail section (23-1). All tail sections (23-2) extend outward relative to the strip-shaped vertical rail section (23-1) and are perpendicular to the strip-shaped vertical rail section (23-1). The second bottom rail (23) is parallel to the first bottom rail (22) and a first gap is provided between them. The third bottom rail (24) includes a main body (24-1) and a corner portion (24-2). The corner portion (24-2) is fixedly located at the corner where the upper end face of the main body (24-1) intersects with its inner side. Both the main body (24-1) and the corner portion (24-2) have rectangular cross-sections, and the cross-sections of the main body (24-1) and the corner portion (24-2) overlap to form a corner shape. The upper end face of the corner portion (24-2) is higher than that of the main body (24-1). The upper end face of the body part (24-1) and the lower end face of the horn part (24-2) are lower than the upper end face of the third rail body part (24-1). The inner side of the horn part (24-2) is located inside the inner side of the inner side of the third rail body part (24-1), the outer side of the horn part (24-2) is located outside the inner side of the third rail body part (24-1), and the outer side of the horn part (24-2) is located inside the outer side of the outer side of the third rail body part (24-1); the second groove wall member (25) is a strip-shaped plate. The first groove wall component (21), the first groove bottom rail (22), the second groove bottom rail (23), the third groove bottom rail (24), and the second groove wall component (25) are parallel to each other. The upper surfaces of the first vertical wall (22-2), the second vertical wall (22-3), the strip vertical rail part (23-1), and the corner part (24-2) are located in the same horizontal plane, and this horizontal plane is the reference plane. The upper surface of the first groove wall main body part (21-1) of the first groove wall component (21) is higher than the reference plane, and the upper surface of the second groove wall component (25) is higher than the reference plane. A conveying chute is formed by the first groove wall member (21), the first groove bottom rail (22), the second groove bottom rail (23), the third groove bottom rail (24), and the second groove wall member (25), which can allow the lead frame to pass through. The width of the conveying chute matches the width of the single lead frame to be conveyed. The first groove bottom rail (22), the second groove bottom rail (23), and the third groove bottom rail (24) are used to support the lead frame. The first groove wall member (21) and the second groove wall member (25) are used to shield and limit the edge of the lead frame.

2. The lead frame conveying device according to claim 1, characterized in that, The conveying device further includes a carrying unit (10); the carrying unit (10) includes a first substrate (11) and a second substrate (12); both the first substrate (11) and the second substrate (12) are rectangular plates; the second substrate (12) includes an inner sub-plate (12-1), a middle sub-plate (12-2), and an outer sub-plate (12-3), the outer side of the inner sub-plate (12-1) is fixedly connected to the inner side of the middle sub-plate (12-2), the outer side of the middle sub-plate (12-2) is fixedly connected to the inner side of the outer sub-plate (12-3), and the lower surfaces of the inner sub-plate (12-1), the middle sub-plate (12-2), and the outer sub-plate (12-3) are located in the same plane; along In the vertical direction, the upper surface of the inner sub-plate (12-1) is lower than the upper surface of the middle sub-plate (12-2). The upper surface of the inner sub-plate (12-1), the upper surface of the middle sub-plate (12-2), and the inner side surface (12-4) of the middle sub-plate (12-2) are connected to form a first right-angle step. In the vertical direction, the upper surface of the outer sub-plate (12-3) is higher than the upper surface of the middle sub-plate (12-2), so that the upper surface of the middle sub-plate (12-2), the upper surface of the outer sub-plate (12-3), and the inner side surface (12-5) of the outer sub-plate (12-3) are connected to form a second right-angle step. The first substrate (11) and the second substrate (12) are both fixed relative to the ground.

3. The lead frame conveying device according to claim 2, characterized in that, The outer side of the first groove wall main body (21-1) of the first groove wall component (21) is attached to the inner side of the first substrate (11) and the two are fixedly connected. The intersection of the upper surface and the inner side of the first substrate (11) is its inner upper corner. The inner upper corner of the first substrate (11) engages with the step portion (21-3) of the first groove wall main body (21-1). The first substrate (11) limits the first groove wall component (21). The upper surfaces of all the tail portions (23-2) of the second groove bottom rail (23) are attached to the lower bottom surface of the second substrate (12) and fixedly connected. The lower bottom surface of the third rail main body (24-1) of the third groove bottom rail (24) is attached to the inner side subplate portion (1) of the second substrate (12). The upper surfaces of the three rails (24-1) are attached to each other and fixedly connected. The outer side of the third rail body (24-1) is attached to the inner side (12-4) of the middle sub-plate (12-2). The middle sub-plate (12-2) limits the third rail body (24-1). The third bottom rail (24) and the second bottom rail (23) are parallel to each other and a second gap is provided between them. The lower bottom surface of the second groove wall member (25) is attached to the upper surface of the middle sub-plate (12-2) and fixedly connected. The lower bottom surface of the second groove wall member (25) is higher than the upper surface of the third rail body (24-1). The inner side of the second groove wall member (25) is attached to the outer side of the corner part (24-2).

4. The lead frame conveying device according to claim 1, characterized in that, The second groove bottom rail (23) includes two T-shaped tails (23-2), which are fixedly disposed at both ends of the strip-shaped vertical rail (23-1). The wider end of each tail (23-2) along the extension direction of the strip-shaped vertical rail (23-1) is fixedly connected to the lower end of the strip-shaped vertical rail (23-1), and the narrower end of each tail (23-2) along the extension direction of the strip-shaped vertical rail (23-1) extends outward relative to the strip-shaped vertical rail (23-1).

5. The lead frame conveying device according to claim 1, characterized in that, A first chamfer is provided at the intersection of the upper surface of the first groove wall main body (21-1) of the first groove wall member (21) and its inner side surface, and a second chamfer is provided at the intersection of the upper surface of the second groove wall member (25) and its inner side surface. The first chamfer and the second chamfer facilitate the placement of the lead wire frame into the conveyor chute.

6. The lead frame conveying device according to claim 1, characterized in that, The conveying device also includes a dial needle (40), which is vertically positioned above the dial needle groove (22-4) of the first groove bottom rail (40), with the tip of the dial needle (40) pointing downwards.

7. The lead frame conveying device according to claim 1, characterized in that, The lengths of the first slot wall component (21), the first slot bottom rail (22), the second slot bottom rail (23), the third slot bottom rail (24), and the second slot wall component (25) are all matched with the length of the single lead frame.

8. The lead frame conveying device according to claim 3, characterized in that, The conveying device also includes a width adjustment unit (60), which includes a motor (61), a lead screw (62), a nut bracket (63), a first linear slide rail (64), a second linear slide rail (65), a first slider (66), a second slider (67), and a nut (68). The motor (61) is fixedly mounted on the bottom surface of the second base plate (12); the lead screw (62) is mounted below the first base plate (11) and the second base plate (12), the lead screw (62) is fixedly connected to the output shaft of the motor (61), and the lead screw (62) and the output shaft of the motor (61) are on the same straight line; the nut bracket (63) is fixedly mounted on the bottom surface of the first base plate (11), the nut (68) is fixedly mounted on the nut bracket (63), the nut (68) is sleeved on the lead screw (62), and the internal thread of the nut (68) can mesh with the external thread of the lead screw (62) to achieve threaded connection; the first linear slide rail (64) and the second linear slide rail (65) are both in the shape of a slender cuboid. The first slider (66) and the second slider (67) are both fixedly disposed on the bottom surface of the first substrate (11). Each of the first slider (66) and the second slider (67) has a U-shaped opening on its back. The first linear slide rail (64) engages in the U-shaped opening of the first slider (66), allowing the first slider (66) to slide along the first linear slide rail (64). The second linear slide rail (65) engages in the U-shaped opening of the second slider (67), allowing the second slider (67) to slide along the second linear slide rail (65). The first linear slide rail (64) and the second linear slide rail (65) are parallel to each other. Both the first linear slide rail (64) and the second linear slide rail (65) are fixedly disposed relative to the ground.

9. The lead frame conveying device according to claim 8, characterized in that, The conveying device further includes a base (50) fixedly disposed relative to the ground, the base (50) being U-shaped; a first base plate (11) being movably disposed on two vertical arms of the base (50), and the extension direction of the first base plate (11) being perpendicular to the extension direction of the two vertical arms of the base (50); a first linear slide rail (64) and a second linear slide rail (65) of the width adjustment unit (60) being fixedly disposed on the upper end surfaces of the two vertical arms of the base (50), and the extension directions of the first linear slide rail (64) and the second linear slide rail (65) being consistent with the extension direction of the upper end surfaces of the two vertical arms of the base (50); a second base plate (12) being fixedly disposed on the upper end surfaces of the two vertical arms of the base (50), and the extension direction of the second base plate (12) being perpendicular to the extension direction of the upper end surfaces of the two vertical arms of the base (50).

10. The lead frame conveying device according to claim 3, characterized in that, The conveying device further includes an alignment mechanism (30); a U-shaped notch (13) is provided at the outer edge of the second substrate (12), the alignment mechanism (30) is disposed in the notch (13) of the second substrate (12), and the alignment mechanism (30) is fixedly connected to the second substrate (12); the notch (13) cuts each of the middle sub-plate portion (12-2) and the outer sub-plate portion (12-3) of the second substrate (12) into two parts; correspondingly, the second groove wall member (25) includes a second groove wall left support section (25-1) and a second groove wall right support section (25-2), the second groove wall left support section (25-1) and the second groove wall right support section (25-2) have the same cross section, the second groove wall left support section (25-1) is disposed on the left side of the notch (13), and the second groove wall right support section (25-2) is disposed on the right side of the notch (13); A recess (24-3) is provided on the outer side of the third groove bottom rail (24). The upper end of the recess (24-3) is open and the lower end is closed. The outer side of the recess (24-3) is open and the inner side is closed. The inner sidewall of the recess (24-3) is located inside the outer side of the corner portion (24-2), and the inner sidewall of the recess (24-3) is located outside the inner side of the corner portion (24-2). The recess (24-3) of the third groove bottom rail (24) is positioned opposite to the notch (13) of the second substrate (12), so that when the alignment mechanism (30) moves forward, its front end can enter the recess (24-3) of the third groove bottom rail (24).

11. The lead frame conveying device according to claim 10, characterized in that, The alignment mechanism (30) includes a vehicle-shaped base (31), a third linear slide rail (32), a third slider (33), a pistol-shaped component (34), a right-angled component (35), a cylinder (36), and a spring (37); The vehicle-shaped base (31) includes a floor panel (31-1), a partition panel (31-2), a first side panel (31-3), a second side panel (31-4), a first lug (31-5), and a second lug (31-6); the floor panel (31-1) is rectangular in shape; the lower ends of the first side panel (31-3) and the second side panel (31-4) are fixedly mounted on the two sides of the front of the floor panel (31-1), and both the first side panel (31-3) and the second side panel (31-4) are perpendicular to the floor panel (31-1), and the first side panel (31-3) and the second side panel (31-4) are parallel; the partition panel (31-2) is L-shaped, and the partition panel (31-2) is L-shaped. 2) Fixedly installed in the middle of the front of the vehicle floor section (31-1), the plane of the partition section (31-2) is perpendicular to the vehicle floor section (31-1), and the plane of the partition section (31-2) is parallel to the first carriage side panel section (31-3); the first lug (31-5) is fixedly installed at the upper end of the first carriage side panel section (31-3) and extends outward relative to the first carriage side panel section (31-3), and the first lug (31-5) is perpendicular to the first carriage side panel section (31-3); the second lug (31-6) is fixedly installed at the upper end of the second carriage side panel section (31-4) and extends outward relative to the second carriage side panel section (31-4), and the second lug (31-6) is perpendicular to the second carriage side panel section (31-4); The pistol-shaped component (34) includes a gun body (34-1), a barrel (34-2), and a trigger (34-3). The gun body (34-1) is generally rectangular, and the barrel (34-2) is quadrangular. The barrel (34-2) is fixedly mounted at the front end of the gun body (34-1). The length of the barrel (34-2) is greater than that of the gun body (34-1). The barrel (34-2) extends from the left and right sides of the gun body (34-1), and the length of the portion of the barrel (34-2) extending from the left side of the gun body (34-1) is greater than the length of the portion of the barrel (34-2) extending from the right side of the gun body (34-1). A lever is fixedly mounted at the rear end of the gun body (34-1). The trigger section (34-3) is fixedly mounted on the left side of the gun body section (34-1) and extends to the left relative to the gun body section (34-1); the back of the barrel section (34-2) is flush with the back of the gun body section (34-1), and a U-shaped first groove (34-4) is provided on the back of the barrel section (34-2) and the gun body section (34-1); the thickness of the barrel section (34-2) is less than that of the gun body section (34-1), and a forward-protruding flange (34-5) is fixedly provided at the front end of the gun body section (34-1) and above the barrel section (34-2), and a second groove (34-6) is formed between the flange (34-5) and the barrel section (34-2); The third linear slide rail (32) is fixedly installed on the front of the vehicle floor plate (31-1), and the third linear slide rail (32) is located between the second carriage side plate (31-4) and the partition plate (31-2); the back of the third slider (33) is provided with a U-shaped opening, and the third linear slide rail (32) is engaged in the U-shaped opening of the third slider (33), so that the third slider (33) can slide along the third linear slide rail (32); the front of the third slider (33) is engaged in the first groove (34-4) on the back of the pistol-shaped part (34) and the two are fixedly connected; the barrel part (34-2) of the pistol-shaped part (34) is horizontally arranged at the front end of the vehicle base (31), and the barrel part (34-2) is located in front of the partition plate (31-2), the first carriage side plate (31-3), and the second carriage side plate (31-4); The right-angled component (35) includes two right-angled plates that are fixedly connected to each other at a right angle; the right-angled component (35) is fastened to the barrel part (34-2) of the pistol-shaped component (34), the right-angled plate of the right-angled component (35) along the horizontal direction is in contact with the upper end face of the barrel part (34-2) and the two are fixedly connected, and the right-angled plate of the right-angled component (35) along the vertical direction is in contact with the front side of the barrel part (34-2); The cylinder (36) is fixedly mounted on the front of the vehicle floor plate (31-1) of the vehicle-shaped base (31), and the cylinder (36) is located between the partition plate (31-2) and the first carriage side plate (31-3); the power output end of the cylinder (36) is located at its front end, and the power output end of the cylinder (36) abuts against the rear side of the barrel (34-2) of the gun-shaped member (34), so that the cylinder (36) can apply a forward thrust to the barrel (34-2) of the gun-shaped member (34); One end of the spring (37) is fixedly connected to the rear side of the vertical arm of the partition (31-2), and the other end of the spring (37) is fixedly connected to the front side of the trigger part (34-3) of the gun-shaped part (34); when the forward thrust applied by the cylinder (36) to the barrel part (34-2) of the gun-shaped part (34) disappears, the elastic force of the spring (37) can reset the barrel part (34-2) of the gun-shaped part (34); The first lug (31-5) and the second lug (31-6) of the vehicle-shaped base (31) are fixedly connected to both sides of the notch (13) of the second substrate (12) to realize the fixed connection between the alignment mechanism (30) and the second substrate (12).

12. The lead frame conveying device according to claim 11, characterized in that, The alignment mechanism (30) also includes a sensor (38), which is fixedly mounted on the second substrate (12) and located between the second groove wall member (25) and the second groove bottom rail (23). The sensor (38) is used to detect whether there is a lead frame in the conveying chute. When the sensor (38) detects a lead frame in the conveying chute, the cylinder (36) starts and its power output applies a forward thrust to the barrel (34-2) of the gun-shaped component (34). Under the thrust of the cylinder (36), the gun-shaped component (34) drives the third slider (33) to move linearly forward along the third linear slide rail (32). The barrel (34-2) then applies a forward thrust to the right-angled component (35), and the right-angled component (35) moves forward along the vertical direction. The right-angle plate moves forward and enters the recess (24-3) of the third groove bottom rail (24). In the recess (24-3) of the third groove bottom rail (24), the right-angle plate of the right-angle member (35) along the vertical direction applies a forward thrust to the edge of the lead frame, so that the edge of the lead frame is parallel to the first groove wall member (21), the first groove bottom rail (22), the second groove bottom rail (23), and the third groove bottom rail (24) of the slide assembly (20).

Images