阅读说明：本技术 一种尺寸可调的集成电路剪切刀具 (Size-adjustable integrated circuit shearing tool ) 是由 李双江 陶怀亮 尹超 李金龙 张文烽 倪乾峰 于 2021-08-12 设计创作，主要内容包括：本发明公开了一种尺寸可调的集成电路剪切刀具,包括剪切机构以及设置于所述剪切机构的剪切端侧的调距机构,所述调距机构包括一固置于所述剪切机构的剪切端侧外的调距固定台、设置于所述调距固定台背离所述剪切机构的一侧的调距移动台以及驱使所述调距移动台靠近或远离所述调距固定台的调距机构,所述调距移动台上对应于所述剪切机构的剪切处的位置形成有放置所述集成电路的放置部,所述集成电路置于所述放置部上且待剪切引脚朝向所述剪切机构,并根据所述集成电路的引脚的剪切长度移动所述调距移动台的位置。通过调节调距移动台和调距固定台之间的间距即可实现引脚剪切长度的调节,整个过程无需更换特定刀具,结构简单、操作方便。(The invention discloses a size-adjustable integrated circuit shearing tool which comprises a shearing mechanism and a distance adjusting mechanism arranged at the shearing end side of the shearing mechanism, wherein the distance adjusting mechanism comprises a distance adjusting fixed table fixedly arranged outside the shearing end side of the shearing mechanism, a distance adjusting movable table arranged at one side of the distance adjusting fixed table, which is far away from the shearing mechanism, and a distance adjusting mechanism driving the distance adjusting movable table to be close to or far away from the distance adjusting fixed table, a placing part for placing an integrated circuit is formed at a position, corresponding to the shearing part of the shearing mechanism, on the distance adjusting movable table, the integrated circuit is placed on the placing part, a pin to be sheared faces the shearing mechanism, and the position of the distance adjusting movable table is moved according to the shearing length of the pin of the integrated circuit. The pin shearing length can be adjusted by adjusting the distance between the distance adjusting mobile station and the distance adjusting fixed station, the whole process does not need to change a specific cutter, and the structure is simple and the operation is convenient.)

1. The utility model provides a size adjustable integrated circuit shearing tool, includes cuts the mechanism, its characterized in that: still including set up in the distolateral roll adjustment mechanism of shearing mechanism, roll adjustment mechanism includes one and fixes in the outside roll adjustment fixed station of the shearing end side of shearing mechanism, set up in the roll adjustment fixed station deviates from the roll adjustment mobile station of one side of shearing mechanism and orders about the roll adjustment mobile station is close to or keeps away from the roll adjustment subassembly of roll adjustment fixed station, the roll adjustment mobile station is gone up corresponding to the position of the shearing department of shearing mechanism is formed with places integrated circuit's the portion of placing, integrated circuit arranges in just treat to cut the pin orientation on the portion of placing shear mechanism, and according to the shearing length removal of integrated circuit's pin the position of roll adjustment mobile station.

2. A dimensionally adjustable integrated circuit shearing tool as set forth in claim 1, further comprising: the shearing mechanism comprises a fixed cutter set and a movable cutter set which is arranged opposite to the fixed cutter set and is matched with the pins of the integrated circuit to shear, the fixed cutter set is provided with a first shearing surface facing the movable cutter set, and a second shearing surface is formed at the position of the movable cutter set facing the first shearing surface; the distance adjusting fixed table is arranged on the side face of the fixed cutter group in parallel, and the placing part and the first shearing face are located at the same horizontal position.

3. A dimensionally adjustable integrated circuit shearing tool as set forth in claim 2, further comprising: the movable cutter set comprises a movable cutter holder and a movable cutter which is detachably arranged on the movable cutter holder; the fixed knife tackle comprises a fixed knife holder and a fixed knife which is detachably arranged on the fixed knife holder and matched with the movable knife to cut the pin, the fixed knife is detachably connected with the distance adjusting mechanism, and the movable knife is opposite to the fixed knife and arranged in a staggered parallel mode.

4. A dimensionally adjustable integrated circuit shearing tool as set forth in claim 2, further comprising: and the fixed cutter group is provided with a material returning groove which is communicated up and down.

5. A dimensionally adjustable integrated circuit shearing tool as set forth in any one of claims 2 to 4, wherein: the height of the distance adjusting fixing table is lower than the first shearing surface, so that the fixed cutter group has a part higher than the distance adjusting fixing table;

a part of the distance-adjusting movable table, which faces one surface of the fixed cutter set and is higher than the distance-adjusting fixed table, is provided with a first inverted step which is inwards concave away from the fixed cutter set, and the first inverted step is provided with a first inner concave surface facing the fixed cutter set and a first top surface matched with the first shearing surface; when the distance adjusting movable table is close to the distance adjusting fixed table, the first inner concave surface gradually moves towards a corresponding surface of a part of the fixed cutter group, which is higher than the distance adjusting fixed table, and the first top surface is arranged on the first shearing surface to be attached to at least part of the first shearing surface, so that the fixed cutter group is accommodated in a first matching space formed by the first inverted step;

a second inverted step which is inwards concave in the direction far away from the distance adjusting fixed table is formed at the position, corresponding to the distance adjusting fixed table, of one surface, facing the distance adjusting fixed table, of the distance adjusting movable table, and the second inverted step is provided with a second inwards concave surface facing the distance adjusting fixed table and a second top surface matched with the table top of the distance adjusting fixed table; when the distance adjusting movable table is close to the distance adjusting fixed table, the second concave surface gradually moves towards the corresponding surface of the distance adjusting fixed table, and the first top surface is arranged on the table top of the distance adjusting fixed table to be attached to at least part of the table top, so that the distance adjusting fixed table is accommodated in a second matching space formed by the second inverted step.

6. A dimensionally adjustable integrated circuit shearing tool as set forth in claim 5, wherein: a placing table is convexly arranged at the position, corresponding to the first shearing surface, of one surface of the distance-adjusting moving table, which is far away from the fixed cutter, and the table surface of the placing table and the first shearing surface are positioned at the same horizontal position; a cutting window is formed on the distance-adjusting mobile station at a position corresponding to the placing table, the cutting window and the placing table form a placing part for placing the integrated circuit, the integrated circuit is placed on the placing table, and the pins pass through the cutting window and are placed on the first cutting surface.

7. A dimensionally adjustable integrated circuit shearing tool as set forth in any one of claims 6, further comprising: the distance adjusting assembly comprises a micrometer caliper arranged on the distance adjusting movable table, a guide pillar arranged on the distance adjusting fixed table and a pressure spring sleeved outside the guide pillar, a thimble hole is arranged at the position, corresponding to the micrometer caliper, on the distance adjusting movable table, and a thimble of the micrometer caliper passes through the thimble hole and is abutted against the corresponding position of the distance adjusting fixed table;

the adjustable-pitch mobile station is characterized in that a guide pillar sliding hole is formed in the position, corresponding to the guide pillar, of the adjustable-pitch mobile station, the guide pillar penetrates through the guide pillar sliding hole, a nut is arranged at the penetrating end of the guide pillar, one end of the pressure spring is abutted to or fixed to the nut, and the other end of the pressure spring is abutted to or fixed to the corresponding position of the adjustable-pitch mobile station.

8. A dimensionally adjustable integrated circuit shearing tool as set forth in claim 7, wherein: the distance adjusting movable table is back to one surface of the distance adjusting fixed table, and two sides corresponding to the placed distance are convexly provided with first installation parts, the first installation parts are provided with micrometer assembling holes for installing a micrometer screw gauge, and the thimble holes and the guide pillar sliding holes are formed in the first installation parts; and guide post assembling holes for installing guide posts are formed in the side, facing the distance adjusting mobile station, of the distance adjusting fixed station and corresponding to the guide post sliding holes.

9. A dimensionally adjustable integrated circuit shearing tool as set forth in claim 7, wherein: a second installation part is fixed on the table top of the placing table, a notch is arranged above the second installation part corresponding to the placing part, and a circuit baffle plate which is used for fixing the integrated circuit and limiting the shortest size of the integrated circuit after the pins of the integrated circuit are cut is fixedly arranged at the position corresponding to the cutting window in the notch.

10. A dimensionally adjustable integrated circuit shearing tool as set forth in claim 9, wherein: the second installation department deviates from one side of shearing mechanism, and corresponding to a guard plate is still installed to the top of circuit baffle.

Technical Field

The invention relates to the technical field of integrated circuit shearing, in particular to a size-adjustable integrated circuit shearing tool.

Background

After the integrated circuit is packaged, the circuit pins are cut to achieve the required pin length. At present, in order to meet different cutting length requirements of various small-batch flat packaging circuits, a plurality of special cutting tools are usually required to be designed on a cutting device on the market, so that the cutting tools are required to be frequently replaced, and the cost is increased.

Disclosure of Invention

The invention aims to provide an integrated circuit shearing tool with adjustable size, which aims to solve the problems of low shearing efficiency and overhigh production cost caused by frequently replacing different shearing tools when a flat packaging circuit is sheared in the prior art.

In order to solve the above problems, the present invention provides a size-adjustable integrated circuit shearing tool, which includes a shearing mechanism, and further includes a distance adjusting mechanism disposed at a shearing end side of the shearing mechanism, wherein the distance adjusting mechanism includes a distance adjusting fixed stage fixedly disposed outside the shearing end side of the shearing mechanism, a distance adjusting movable stage disposed at a side of the distance adjusting fixed stage away from the shearing mechanism, and a distance adjusting component for driving the distance adjusting movable stage to approach or depart from the distance adjusting fixed stage, a placement portion for placing the integrated circuit is formed at a position on the distance adjusting movable stage corresponding to a shearing position of the shearing mechanism, the integrated circuit is placed on the placement portion, a pin to be sheared faces the shearing mechanism, and a position of the distance adjusting movable stage is moved according to a shearing length of the pin of the integrated circuit.

Further, the shearing mechanism comprises a fixed cutter set and a movable cutter set which is arranged opposite to the fixed cutter set and is matched with the fixed cutter set to shear the pins of the integrated circuit, the fixed cutter set is provided with a first shearing surface facing the movable cutter set, and a second shearing surface is formed at the position of the movable cutter set facing the first shearing surface; the distance adjusting fixed table is arranged on the side face of the fixed cutter group in parallel, and the placing part and the first shearing face are located at the same horizontal position.

Furthermore, the movable cutter set comprises a movable cutter seat and a movable cutter which is detachably arranged on the movable cutter seat; the fixed knife tackle comprises a fixed knife holder and a fixed knife which is detachably arranged on the fixed knife holder and matched with the movable knife to cut the pin, the fixed knife is detachably connected with the distance adjusting mechanism, and the movable knife is opposite to the fixed knife and arranged in a staggered parallel mode.

Furthermore, a material returning groove which is communicated up and down is arranged on the fixed cutter group.

Further, the height of the distance adjusting fixing table is lower than the first shearing surface, so that the fixed cutter group has a part higher than the distance adjusting fixing table;

a part of the distance-adjusting movable table, which faces one surface of the fixed cutter set and is higher than the distance-adjusting fixed table, is provided with a first inverted step which is inwards concave away from the fixed cutter set, and the first inverted step is provided with a first inner concave surface facing the fixed cutter set and a first top surface matched with the first shearing surface; when the distance adjusting movable table is close to the distance adjusting fixed table, the first inner concave surface gradually moves towards a corresponding surface of a part of the fixed cutter group, which is higher than the distance adjusting fixed table, and the first top surface is arranged on the first shearing surface to be attached to at least part of the first shearing surface, so that the fixed cutter group is accommodated in a first matching space formed by the first inverted step;

a second inverted step which is inwards concave in the direction far away from the distance adjusting fixed table is formed at the position, corresponding to the distance adjusting fixed table, of one surface, facing the distance adjusting fixed table, of the distance adjusting movable table, and the second inverted step is provided with a second inwards concave surface facing the distance adjusting fixed table and a second top surface matched with the table top of the distance adjusting fixed table; when the distance adjusting movable table is close to the distance adjusting fixed table, the second concave surface gradually moves towards the corresponding surface of the distance adjusting fixed table, and the first top surface is arranged on the table top of the distance adjusting fixed table to be attached to at least part of the table top, so that the distance adjusting fixed table is accommodated in a second matching space formed by the second inverted step.

Furthermore, a placing table is convexly arranged at the position, corresponding to the first shearing surface, of the distance-adjusting moving table, which is back to the surface of the fixed cutter, and the table surface of the placing table and the first shearing surface are positioned at the same horizontal position; a cutting window is formed on the distance-adjusting mobile station at a position corresponding to the placing table, the cutting window and the placing table form a placing part for placing the integrated circuit, the integrated circuit is placed on the placing table, and the pins pass through the cutting window and are placed on the first cutting surface.

Furthermore, the distance adjusting assembly comprises a micrometer caliper arranged on the distance adjusting movable table, a guide post arranged on the distance adjusting fixed table and a pressure spring sleeved outside the guide post, a thimble hole is arranged at the position, corresponding to the micrometer caliper, on the distance adjusting movable table, and a thimble of the micrometer caliper passes through the thimble hole and is abutted against the corresponding position of the distance adjusting fixed table;

the adjustable-pitch mobile station is characterized in that a guide pillar sliding hole is formed in the position, corresponding to the guide pillar, of the adjustable-pitch mobile station, the guide pillar penetrates through the guide pillar sliding hole, a nut is arranged at the penetrating end of the guide pillar, one end of the pressure spring is abutted to or fixed to the nut, and the other end of the pressure spring is abutted to or fixed to the corresponding position of the adjustable-pitch mobile station.

Furthermore, a first mounting part is convexly arranged on one surface of the distance adjusting movable platform, which is away from the distance adjusting fixed platform, and two sides corresponding to the placed distance adjusting fixed platform, a micrometer mounting hole for mounting a micrometer screw is arranged on the first mounting part, and the thimble hole and the guide pillar sliding hole are formed on the first mounting part; and guide post assembling holes for installing guide posts are formed in the side, facing the distance adjusting mobile station, of the distance adjusting fixed station and corresponding to the guide post sliding holes.

Furthermore, a second installation part is fixed on the table board of the placing table, a notch is arranged above the second installation part corresponding to the placing part, and a circuit baffle plate used for fixing the integrated circuit and limiting the shortest size of the cut pins of the integrated circuit is fixedly arranged in the notch at the position corresponding to the cutting window.

Furthermore, the second installation department deviates from one side of shearing mechanism, and corresponding to a guard plate is still installed to the top of circuit baffle.

According to the invention, the distance-adjusting mobile station, the distance-adjusting fixed station, the micrometer screw, the guide post and the pressure spring are arranged, so that the distance-adjusting mobile station can move relative to the distance-adjusting fixed station after day under the coordination of the micrometer screw, the guide post and the pressure spring to drive the integrated circuit to be sheared on the distance-adjusting mobile station to move synchronously, thus the shearing length of the pins is adjusted, the shearing requirements of the pins with different lengths can be met without frequently replacing cutters in the shearing process, and the production cost is reduced while the shearing efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of a size-adjustable IC cutting tool according to the present invention.

Fig. 2 is another schematic structural diagram of fig. 1.

Fig. 3 is a schematic view of another structure of fig. 1.

Fig. 4 is a schematic structural view of the shearing mechanism.

Fig. 5 is a schematic structural view of the pitch adjusting mechanism.

Fig. 6 is an enlarged view of a portion a in fig. 5.

Fig. 7 is a schematic structural view of the distance-adjusting fixing table.

Fig. 8 is a schematic structural diagram of a ranging mobile station.

The reference numbers of the specification are as follows:

the integrated circuit 100, the shearing mechanism 1, the fixed cutter group 11, the fixed cutter holder 111, the second straight groove 111a, the fixed cutter 112, the threaded hole 112a, the first shearing surface 112b, the material returning groove 113, the movable cutter group 12, the movable cutter holder 121, the first straight groove 121a, the movable cutter 122, the second shearing surface 122a, the distance adjusting mechanism 2, the distance adjusting fixed table 21, the threaded groove 21a, the guide post assembly hole 21b, the distance adjusting movable table 22, the first inverted step 221, the first inner concave surface 221a, the first top surface 221b, the first matching space 222, the second inverted step 223, the second inner concave surface 223a, the second top surface 223b, the second matching space 224, the first mounting part 225, the top pin hole 225a, the guide post sliding hole 225b, the micrometer assembly hole 225c, the second mounting part 226, the mounting hole 226a, the distance adjusting component 23, the micrometer 231, the thimble 231a, the thimble 232, the guide post 232a, the nut 232a, and the screw cap nut 232a, A compression spring 233, a placing part 3, a placing table 31, a shearing window 32, a circuit baffle 4 and a protection plate 5.

Detailed Description

The invention will be further explained with reference to the drawings.

As shown in fig. 1, fig. 2 and fig. 3, the integrated circuit shearing apparatus with adjustable size of the present invention includes a shearing mechanism 1 and a pitch adjusting mechanism 2 disposed at a shearing end side of the shearing mechanism 1, where the shearing mechanism 1 is configured to perform a shearing action, and the pitch adjusting mechanism 2 is configured to adjust a pin shearing length of an integrated circuit 100 to be sheared. A placing part 3 for placing the integrated circuit 100 to be cut is formed on the distance adjusting mechanism 2 corresponding to the cutting position of the cutting mechanism 1, the integrated circuit 100 is placed on the placing part 3, the pin to be cut faces the cutting mechanism 1, and the distance adjusting mechanism 2 can adjust the relative position of the integrated circuit 100 and the cutting mechanism 1 according to the cutting length of the pin of the integrated circuit 100, so that the cutting length of the pin can be adjusted, and the cutting requirement of the integrated circuit 100 can be met.

With reference to fig. 4, the cutting mechanism 1 includes a fixed blade set 11 and a movable blade set 12 disposed opposite to the fixed blade set 11 for cutting the leads of the ic 100, and the movable blade set 12 can move toward or away from the fixed blade set 11 to cut the leads.

The fixed blade group 11 fixes the blade holder 111 and the fixed blade 112, the fixed blade holder 111 is detachably mounted on the fixing plate 431, and preferably, the fixed blade 112 is detachably mounted on the fixed blade 112 through a bolt, so that the fixed blade 112 can be conveniently detached from the fixed blade holder 111 for replacement after being worn. The movable knife group 12 includes a movable knife holder 121 and a movable knife 122, the movable knife holder 121 is detachably mounted on the movable plate 432, preferably, the movable knife 122 is detachably mounted on the movable knife holder 121 through a bolt, so that the movable knife 122 can be conveniently detached from the movable knife holder 121 for replacement after the movable knife 122 is worn. The fixed knife 112 is also detachably connected with the distance adjusting mechanism 2, and is used for fixing the fixed knife group 11 and the distance adjusting mechanism 2, so that the shearing quality is prevented from being influenced by displacement between the fixed knife group 11 and the distance adjusting mechanism 2 in the shearing process; meanwhile, the fixed knife group 11 is detachably connected with the distance adjusting mechanism 2, and the fixed knife 112 is also convenient to detach and replace after the fixed knife 112 is worn, specifically, a threaded hole 112a is formed in a position corresponding to the distance adjusting mechanism 2, a threaded groove 21a is formed in a position corresponding to the threaded hole 112a on the fixed knife 112, and the fixed knife 112 can be connected with the distance adjusting mechanism 2 through the cooperation of a bolt, the threaded hole 112a and the threaded groove 21 a. It is understood that in other embodiments, the fixed tool post 111 and the fixed tool 112, the movable tool post 121 and the movable tool 122, and the fixed tool set 11 and the distance adjusting mechanism 2 may be detachably connected by, for example, snapping, pin-jointing, etc.

The movable knife 122 is opposite to the fixed knife 112 and is arranged in parallel in a staggered manner, so that the movable knife 122 can move along with the fixed knife 112 in the descending process; the fixed knife 112 is provided with a first shearing surface 112b facing the movable knife 122, a second shearing surface is formed at the position of the movable knife 122 facing the first shearing surface 112b, and due to the staggered arrangement of the movable knife 122 and the fixed knife 112, the first shearing surface 112b and the second shearing surface are correspondingly staggered to form the shearing end (shearing position) of the shearing mechanism 1. When the shearing mechanism 1 performs the shearing action, the movable knife 122 descends, the first shearing surface 112b gradually approaches the part of the pin beyond the second shearing surface and contacts with the pin, and in the process that the movable knife 122 continuously descends, the first shearing surface 112b applies downward pressure to the pin, and meanwhile, the second shearing surface has upward supporting force to the pin, so that the pin is cut off under the combined action of the first shearing surface 112b and the second shearing surface.

The movable cutter holder 121 is provided with a first straight groove 121a which is through from top to bottom, and the fixed cutter holder 111 is provided with a second straight groove 111a which is through from top to bottom and parallel to the first straight groove 121a, and is used for fixing the shearing mechanism 1 at a corresponding position of a die carrier (not shown in the figure) of a punching machine. During specific implementation, the movable tool apron 121 and the fixed tool apron 111 can be mounted through the matching of the bolts and the corresponding straight grooves, and the installation is convenient and quick; meanwhile, when the pin is installed, the relative positions of the movable cutter holder 121 and the fixed cutter holder 111 on the die holder of the punch press can be changed by sliding the bolt in the corresponding straight groove, and then the relative positions of the movable cutter 122 and the fixed cutter 112 can be finely adjusted, so that the movable cutter 122 and the fixed cutter 112 can be more accurate when being sheared, and the shearing quality of the pin is improved.

The fixed knife tackle 11 is provided with a material returning groove 113 which is through up and down, so that the sheared pin waste can fall through the material returning groove 113, and the pin waste is prevented from being accumulated in the shearing mechanism 1.

It will be appreciated that in some embodiments, the shearing mechanism 1 may also be composed of two moving knife sets 12, and a corresponding driving mechanism is provided for each moving knife set 12 to enable the moving knife sets to be folded in opposite directions to realize shearing and resetting.

With continuing reference to fig. 5, fig. 6, fig. 7 and fig. 8, the distance adjusting mechanism 2 includes a fixed distance adjusting table 21, a movable distance adjusting table 22 and a distance adjusting assembly 23, the fixed distance adjusting table 21 is fixed on the cutting end side of the cutting mechanism 1, specifically, the fixed distance adjusting table 21 is fixed on the side of the fixed surface facing the fixed distance adjusting table 21 by bolts. The movable distance adjusting table 22 is disposed on a side of the fixed distance adjusting table 21 away from the fixed blade 112, and the placing section 3 is formed on the movable distance adjusting table 22, so that the integrated circuits 100 placed on the placing section 3 can be driven to move synchronously when the movable distance adjusting table 22 is moved. The pitch adjusting assembly 23 is configured to drive the pitch adjusting moving stage 22 to approach or depart from the pitch adjusting fixing stage 21, and further move the position of the pitch adjusting moving stage 22 according to the cutting length of the pins of the integrated circuit 100, so as to change the length of the pins of the integrated circuit 100 exceeding the first cutting surface 112b, and thus, adjust the cutting length of the pins.

In the present embodiment, the height of the distance adjusting fixing table 21 is lower than the first shearing surface 112b, so that the fixed blade set 11 has a portion higher than the distance adjusting fixing table 21, and it is ensured that the first shearing surface 112b on the fixed blade 112 can be located at the same level as the placing part 3 on the distance adjusting fixing table 21, so that the leads of the integrated circuit 100 can be placed flatly on the placing part 3 and the first shearing surface 112b, thereby improving the shearing accuracy.

A first inverted step 221 is formed on a surface of the distance adjusting moving table 22 facing the fixed cutter set 11 and corresponding to a portion higher than the distance adjusting fixed table 21, and the first inverted step 221 is recessed in a direction away from the fixed cutter set 11 to form a first fitting space 222 for accommodating the fixed cutter set 11 during distance adjustment. The first inverted step 221 has a first inner concave surface 221a facing the fixed blade assembly 11 and a first top surface 221b adapted to the first shearing surface 112b, when the distance-adjusting moving stage 22 is close to the distance-adjusting fixed stage 21, the first inner concave surface 221a gradually moves towards a corresponding surface of a portion of the fixed blade assembly 11 higher than the distance-adjusting fixed stage 21, and meanwhile, the first top surface 221b is attached to the first shearing surface 112b to move and is attached to at least a portion of the first shearing surface 112b, so that the fixed blade assembly 11 can be accommodated in the first fitting space 222. A second inverted step 223 is formed on a surface of the distance-adjusting movable table 22 facing the distance-adjusting fixed table 21 and corresponding to the distance-adjusting fixed table 21, and the second inverted step 223 is recessed toward a direction away from the distance-adjusting fixed table 21 to form a second fitting space 224 for accommodating the distance-adjusting fixed table 21 during distance adjustment. The second inverted step 223 has a second inner concave surface 223a facing the distance-adjusting fixing stage 21 and a second top surface 223b adapted to the table surface of the distance-adjusting fixing stage 21, and when the distance-adjusting moving stage 22 approaches the distance-adjusting fixing stage 21, the second inner concave surface 223a gradually moves toward the corresponding surface of the distance-adjusting fixing stage 21, and at the same time, the first top surface 221b moves in contact with the table surface of the distance-adjusting fixing stage 21 and at least partially contacts the table surface of the distance-adjusting fixing stage 21, so that the distance-adjusting fixing stage 21 can be accommodated in the second engaging space 224. The distance adjusting mechanism 2 is convenient to adjust the distance between the placing table 31 and the first shearing surface 112b through the matching of the fixed knife group 11 and the first matching space 222 and the distance adjusting fixing table 21 and the second matching space 224, so as to change the length of the pins of the integrated circuit 100 exceeding the first shearing surface 112 b.

A placing table 31 is convexly arranged on a surface of the distance-adjusting moving table 22, which is away from the fixed cutter 112 and corresponds to the first shearing surface 112b, and a table surface of the placing table 31 and the first shearing surface 112b are located at the same horizontal position. A cutting window 32 is formed on the distance-adjusting mobile station 22 at a position corresponding to the first placing table 31, the cutting window 32 and the placing table 31 together form the placing unit 3, and when cutting, the integrated circuit 100 is placed on the placing table 31 and the pins thereof pass through the cutting window 32 and are placed on the first cutting surface 112b to be cut.

The first mounting portions 225 are convexly provided on one side of the distance adjusting movable table 22 away from the fixed distance adjusting table 21 and corresponding to two sides of the placing table 31. The distance adjusting assembly 23 includes a micrometer screw 231 disposed on the first mounting portion 225, a guide post 232 disposed on the fixed distance adjusting platform 21 and corresponding to the first mounting portion 225, and a compression spring 233 disposed outside the penetrating end of the guide post 232 for matching with the position of the movable distance adjusting platform 22. The micrometer screw 231 has a thimble 231a capable of extending along the length direction thereof, a thimble hole 225a is arranged at a position corresponding to the thimble 231a of the micrometer screw 231 on the first mounting portion 225, and the thimble 231a can pass through the thimble hole 225a to abut against a corresponding position of the distance-adjusting fixing table 21. A guide post sliding hole 225b is further formed in the first mounting portion 225 at a position corresponding to the guide post 232, and the guide post 232 passes through the guide post sliding hole 225b, so that the distance-adjusting movable stage 22 can approach or depart from the distance-adjusting fixed stage 21 along the guide post 232. A nut 232a is disposed at the penetrating end of the guide post 232, one end of the compression spring 233 abuts against or is fixed to the nut 232a, and the other end of the compression spring 233 abuts against or is fixed to a corresponding position of the distance adjusting moving stage 22, so as to fix the compression spring 233.

In the specific implementation of the present embodiment, when the micrometer screw 231 is rotated, the thimble 231a extends out to push the distance-adjusting moving stage 22 away from the distance-adjusting fixing stage 21, so as to increase the distance between the distance-adjusting moving stage 22 and the distance-adjusting fixing stage 21, and further reduce the shearing length of the pins, and when the distance-adjusting moving stage 22 is pushed away from the distance-adjusting fixing stage 21, the distance-adjusting moving stage 22 presses the compression spring 233, so that the compression spring 233 exerts an opposite force on the distance-adjusting moving stage 22, and thus the distance-adjusting moving stage 22 can be fixed, and the distance-adjusting moving stage 22 is prevented from moving arbitrarily in the shearing process; when the micrometer screw 231 is rotated in the opposite direction, the thimble 231a is retracted, and the distance-adjusting moving table 22 can move towards the distance-adjusting fixed table 21 along the guide post 232 under the action of the pressure spring 233, so as to reduce the distance between the distance-adjusting moving table 22 and the distance-adjusting fixed table 21 and further increase the shearing length of the pins; the adjustment of the shearing length of the pin of the integrated circuit 100 is realized through the matching of the micrometer screw 231, the guide post 232 and the pressure spring 233, so that the pin of the integrated circuit 100 after being processed meets the processing requirement.

In this embodiment, a micrometer mounting hole 225c is further formed in the first mounting portion 225, and the micrometer screw 231 is detachably mounted in the micrometer mounting hole 225c by a bolt, so that the micrometer screw 231 can be easily mounted and dismounted. A guide post 232 assembling hole 21b is formed at a position of the distance adjusting fixed table 21 facing the distance adjusting movable table 22 and corresponding to the guide post sliding hole 225b, and the guide post 232 is detachably mounted in the guide post 232 assembling hole 21b through a bolt, so that the guide post 232 is conveniently mounted and dismounted.

It is understood that, in some embodiments, the distance adjusting mechanism 2 may only include one distance adjusting moving stage 22, and at the same time, the micrometer screw 231 and the guide post 232 are connected to the fixed blade set 11 to change the relative position between the integrated circuit 100 carried on the distance adjusting moving stage 22 and the fixed blade set 11, so as to adjust the pin shearing length.

A second mounting portion 226 is fixedly disposed on the top of the placing table 31, a notch (not labeled in the figure) is disposed on the second mounting portion 226 corresponding to the upper portion of the placing portion 3, and a circuit baffle 4 for fixing the integrated circuit 100 and limiting the shortest dimension of the integrated circuit 100 after the pins are cut is fixedly disposed in the notch corresponding to the cutting window 32. The shortest dimension is the length from the circuit board 4 to the edge of the first shearing surface 112b when the first concave surface 221a is attached to the corresponding surface of the fixed cutter set 11 and the second concave surface 223a is attached to the corresponding surface of the adjustable distance fixed plate, and the shortest dimension is the smallest dimension which can be machined by the shearing tool.

The second mounting portion 226 is away from one side of the shearing mechanism 1, and a protection plate 5 is further mounted above the circuit baffle 4 to prevent an operator from touching the knife edge of the movable knife 122 or the fixed knife 112 during shearing. In this embodiment, the second mounting portion 226 is provided with a protection plate mounting hole 226a, and the protection plate 5 is correspondingly mounted in the protection plate mounting hole 226a through a bolt.

When the invention works, firstly, according to the shearing requirement of the length of the pin, the micrometer screw 231 is rotated to extend the thimble 231a to push the distance-adjusting movable table 22 to the distance-adjusting fixed table 21, so as to adjust the distance between the distance-adjusting movable table 22 and the distance-adjusting fixed table 21 to the required position; then, the integrated circuit 100 to be cut is placed on the placing table 31 to abut against the circuit baffle 4, the integrated circuit 100 is held by hands to be fixed, and the pins pass through the cutting window 32 and are placed on the first cutting surface 112b flatly; then, the movable cutter set 12 is controlled to move downwards to be close to the fixed cutter set 11, the pins exceeding the edge of the first shearing surface 112b are cut off under the matching of the first shearing surface 112b and the second shearing surface, and the broken pin waste materials exit from the material returning groove 113; finally, the moving blade set 12 is controlled to move upward, and the integrated circuit 100 is removed from the placing table 31.

After the cutting is finished, if the cutting needs to be carried out on the pins of the other integrated circuits 100 according to the length again, the cutting operation is only needed to be repeated; if other lengths need to be cut, the distance between the distance-adjusting movable table 22 and the distance-adjusting fixed table 21 can be adjusted to the required width to perform cutting operation, a specific cutter does not need to be replaced in the whole process, and the device is simple in structure and convenient to operate.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures made by using the contents of the present specification and the drawings can be directly or indirectly applied to other related technical fields, and are within the scope of the present invention.