Cutter module

Abstract

The cutter module comprises a first positioning plate, a stamping plate and a second positioning plate which are stacked, a mounting groove is formed in one face of the first positioning plate, and a cutting opening is formed in the first positioning plate; the guide column is arranged between the first positioning plate and the second positioning plate and penetrates through the stamping plate; one end of the first cutter is installed on the stamping plate and arranged at the position corresponding to the cutting opening. One end of the second cutter is mounted on the stamping plate and is arranged at a position corresponding to one end of the mounting groove, so that the second cutter can cut the end part of the to-be-stamped workpiece; and the cover plate is arranged on the first positioning plate and covers the mounting groove. The punching precision is effectively improved, the product quality is improved, when the device is applied to the semiconductor clamping welding machine, the copper flat belt can be rapidly and efficiently punched and cut to obtain the high-precision clamping piece, the clamping piece can be rapidly applied to the clamping welding machine, and the yield of chips is improved.

Description

Technical Field

[0001] The present application belongs to the field of stamping technology, and specifically relates to a cutting die set. Background Art

[0002] A stamping device is required in a semiconductor clamp welding machine to quickly stamp the copper flat strip to obtain the required clip. In the prior art, the stamping positioning accuracy of the stamping device of the semiconductor clamp welding machine is insufficient, resulting in the problem that the stamped clips are of different sizes and have burrs around them, which affects the final chip yield. Summary of the invention

[0003] The purpose of the present application is to provide a cutting knife module to solve the technical problem that the stamping positioning accuracy of the stamping device of the semiconductor clamp welding machine in the prior art is insufficient, resulting in the stamped clips being of different sizes and having burrs around the edges, which affects the final chip yield.

[0004] In order to achieve the above purpose, the technical solution adopted in this application is:

[0005] A cutting module is provided, comprising:

[0006] A first positioning plate, a punching plate and a second positioning plate are stacked and spaced in sequence, wherein one side of the first positioning plate is provided with a mounting groove for mounting a workpiece to be punched, and the first positioning plate is provided with a cutting opening arranged in the mounting groove and penetrating the first positioning plate;

[0007] A guide column is arranged between the first positioning plate and the second positioning plate, and the guide column penetrates the stamping plate so that the stamping plate can be slidably arranged along the guide column;

[0008] A first cutter, one end of which is mounted on the stamping plate, and the other end of which is extended in the direction pointing to the first positioning plate, and the first cutter is arranged at a position corresponding to the cutting opening so that the first cutter can be inserted into the cutting opening to cut the workpiece to be stamped;

[0009] A second cutter, one end of which is mounted on the stamping plate and the other end of which is extended in the direction pointing to the first positioning plate, and the second cutter is arranged at a position corresponding to one end of the mounting groove so that the second cutter can cut the end of the workpiece to be stamped;

[0010] A cover plate is arranged on the first positioning plate, and the cover plate covers the mounting groove to limit the workpiece to be punched. An opening corresponding to the cutting opening is provided on the cover plate so that the first cutting knife can be inserted into the opening.

[0011] In one or more embodiments, a first buffer spring is further included, and the first buffer spring is arranged between the first positioning plate and the punching plate.

[0012] In one or more embodiments, the first cutter includes an extension section and a convex head arranged at the mounting end of the extension section, the stamping plate is provided with a through cutter mounting hole, the cutter mounting hole includes a first hole section and a second hole section sequentially arranged in a direction pointing to the first positioning plate, the diameter of the first hole section matches the convex head, the diameter of the second hole section matches the extension section, and the first cutter can be inserted into the cutter mounting hole from one side of the first hole section;

[0013] The cutter module also includes a cutter locking plate, which is arranged on a side of the stamping plate away from the first positioning plate, and covers the cutter mounting hole to limit the first cutter.

[0014] In one or more embodiments, a positioning pin is further included, one end of which is installed on the stamping plate, and the other end is extended in the direction pointing to the first positioning plate. The positioning pin is arranged at a position corresponding to the positioning hole of the workpiece to be stamped, and a first avoidance hole matching the positioning pin is provided on the first positioning plate, and a second avoidance hole matching the positioning pin is provided on the cover plate.

[0015] In one or more embodiments, the positioning pin includes a mounting section, a raised section and a working section which are sequentially arranged along the direction of the stamping plate pointing to the first positioning plate, the diameters of the mounting section and the working section are smaller than the diameter of the raised section, a penetrating positioning pin mounting hole is provided on the stamping plate, the positioning pin mounting hole includes a third hole section and a fourth hole section which are sequentially arranged along the direction pointing to the first positioning plate, the diameter of the third hole section matches the raised section, the diameter of the fourth hole section matches the working section, and the positioning pin can be inserted into the positioning pin mounting hole from one side of the third hole section;

[0016] The cutting knife module also includes a locking needle plate, which is arranged on the side of the stamping plate away from the first positioning plate, and a positioning needle limiting hole corresponding to the position of the positioning needle mounting hole is provided on the locking needle plate, and the diameter of the positioning needle limiting hole matches the mounting section to limit the positioning needle.

[0017] In one or more embodiments, a second buffer spring is further included, wherein the second buffer spring is sleeved on the mounting section, and the second buffer spring is located between the needle locking plate and the raised section.

[0018] In one or more embodiments, the mounting end of the second cutter is fixed to the side surface of the stamping plate, and the first positioning plate is provided with an avoidance groove matching the second cutter.

[0019] In one or more embodiments, a guide groove is provided on the groove wall of the avoidance groove, and a guide block embedded in the guide groove is provided on the second cutter, so that the second cutter can slide along the guide groove.

[0020] In one or more embodiments, it further includes:

[0021] A first limit block is arranged on a side of the second positioning plate facing the stamping plate to limit the maximum displacement of the stamping plate;

[0022] The second limiting block is arranged on a side of the stamping plate facing the first positioning plate to limit the maximum displacement of the stamping plate.

[0023] In one or more embodiments, a third positioning plate is further included. The third positioning plate is covered on the cover plate and fixed to the cover plate and the first positioning plate. The third positioning plate is provided with a hollow portion exposing the opening.

[0024] Different from the prior art, the beneficial effects of this application are:

[0025] The cutter module of the present application limits the workpiece to be punched by cooperating with the mounting groove of the cover plate and the first positioning plate, and drives the stamping plate to move, drives the first cutter to insert into the cutting opening of the first positioning plate to punch and cut the workpiece to be punched, and drives the second cutter to punch and cut the end of the workpiece to be punched, effectively improving the punching accuracy and product quality. When applied to a semiconductor clamp welding machine, it can quickly and efficiently punch and cut the copper flat strip to obtain a high-precision clamp, so that the clamp can be quickly applied to the clamp welding machine and improve the yield rate of the chip;

[0026] The cutting knife module of the present application is also provided with a positioning pin, which can be inserted into the positioning hole of the workpiece to be punched to position the workpiece during punching, thereby further improving the punching accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0028] Figure 1 It is a front view structural schematic diagram of an embodiment of a cutting knife module of the present application;

[0029] Figure 2 It is a schematic diagram of the top view of the structure of an embodiment of the cutting knife module of the present application;

[0030] Figure 3 It is a three-dimensional structural schematic diagram of an embodiment of a cutting knife module of the present application;

[0031] Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure of the AA surface;

[0032] Figure 5 yes Figure 4 A is a partial enlarged schematic diagram;

[0033] Figure 6 yes Figure 2 Schematic diagram of the cross-sectional structure of the middle BB surface;

[0034] Figure 7 yes Figure 6 A partial enlarged schematic diagram of B in the figure.

[0035] Description of main reference numerals:

[0036] First positioning plate 10; mounting groove 101; cutting opening 102; avoidance groove 103; guide groove 1031; first avoidance hole 104;

[0037] Stamping plate 20; cutter mounting hole 201; first hole section 2011; second hole section 2012; positioning pin mounting hole 2013; third hole section 2014; fourth hole section 2015;

[0038] A second positioning plate 30;

[0039] Cover plate 40; opening 401; second avoidance hole 402;

[0040] Guide column 50;

[0041] First cutter 60; extension section 601; protrusion 602;

[0042] Second cutter 70; guide block 701;

[0043] The third positioning plate 80; the hollow portion 801;

[0044] A first buffer spring 90;

[0045] Mounting column 100;

[0046] Knife locking plate 110;

[0047] Positioning pin 120; mounting section 1201; raised section 1202; working section 1203;

[0048] Needle locking plate 130; positioning needle limiting hole 1301;

[0049] A second buffer spring 140;

[0050] A first limiting block 150;

[0051] The second limiting block 160 . DETAILED DESCRIPTION

[0052] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0053] In order to solve the technical problem that the stamping positioning accuracy of the stamping device of the semiconductor clamp welding machine in the prior art is insufficient, resulting in the problem that the stamped clips are of different sizes and have burrs around them, which affects the final chip yield, the applicant has developed a new type of cutting knife module for semiconductor clamp welding machine. The cutting knife module can quickly and accurately punch and cut copper flat strips to obtain clips, ensure the accuracy of the clips, and enable the clips to be quickly applied to the clamp welding machine, which helps to improve the chip yield.

[0054] Specifically, see Figure 1 , Figure 2 and Figure 4 , Figure 1 1 is a front view structural diagram of an embodiment of a cutting knife module of the present application. Figure 2 1 is a schematic diagram of a top view of a cutting module according to an embodiment of the present invention. Figure 4 yes Figure 2 Schematic diagram of the cross-sectional structure of the AA surface in the middle.

[0055] As shown in the figure, the cutting die set includes a first positioning plate 10, a punching plate 20 and a second positioning plate 30 which are sequentially stacked and spaced apart.

[0056] A mounting groove 101 for mounting the workpiece to be punched is provided on one side of the first positioning plate 10 . A cover plate 40 is also arranged on the first positioning plate 10 . The cover plate 40 covers the mounting groove 101 to limit the position of the workpiece to be punched.

[0057] The first positioning plate 10 is provided with a cutting opening 102 which is arranged in the mounting groove 101 and passes through the first positioning plate 10 , and the cover plate 40 is provided with an opening 401 corresponding to the cutting opening 102 .

[0058] Four guide posts 50 are arranged between the first positioning plate 10 and the second positioning plate 30 . The four guide posts 50 are arranged at four corners, and the guide posts 50 penetrate the stamping plate 20 so that the stamping plate 20 can be slidably arranged along the guide posts 50 .

[0059] A first cutter 60 and a second cutter 70 are installed on the stamping plate 20. One end of the first cutter 60 is installed on the stamping plate 20, and the other end is extended in the direction pointing to the first positioning plate 10. The first cutter 60 is arranged at a position corresponding to the cutting opening 102 so that the first cutter 60 can be inserted into the cutting opening 102 to cut the workpiece to be stamped.

[0060] One end of the second cutter 70 is mounted on the stamping plate 20 and the other end is extended in the direction pointing to the first positioning plate 10. The second cutter 70 is arranged at a position corresponding to one end of the mounting groove 101 so that the second cutter 70 can cut the end of the workpiece to be stamped.

[0061] It can be understood that the cooperation between the cover plate 40 and the mounting groove 101 of the first positioning plate 10 can realize the precise positioning of the workpiece to be stamped. By controlling the stamping plate 20 to move along the guide column 50 toward the first positioning plate 10, the first cutter 60 can be driven to insert into the cutting port 102 and the opening 401 to perform stamping and cutting on the workpiece to be stamped. Simultaneously, the second cutter 70 is also driven to perform stamping and cutting on the end of the workpiece to be stamped.

[0062] In one embodiment, the workpiece to be punched may be a copper flat strip, and the first cutter 60 and the second cutter 70 may synchronously cut the copper flat strip to obtain a clip. Due to the limiting effect of the cover plate 40 and the mounting groove 101, the positioning accuracy of the copper flat strip can be improved. At the same time, due to the limiting effect of the guide column 50, the movement accuracy of the first cutter 60 and the second cutter 70 can be improved, thereby improving the punching and cutting accuracy.

[0063] Specifically, in the present embodiment, the cutting knife module also includes a third positioning plate 80, and the third positioning plate 80 is covered on the cover plate 40, and the third positioning plate 80 is fixed to the cover plate 40 and the first positioning plate 10, and the third positioning plate 80 is provided with a hollow portion 801 exposing the opening 401, thereby achieving the fixation of the cover plate 40; in other embodiments, the cover plate 40 can also be fixed in other ways, for example, the cover plate 40 can be directly fixed to the first positioning plate 10 by bolts, which can also achieve the effect of the present embodiment.

[0064] In order to buffer the movement of the punching plate 20, the cutter die set further includes a first buffer spring 90, which is arranged between the first positioning plate 10 and the punching plate 20. Specifically, in this embodiment, a mounting post 100 may be provided between the first positioning plate 10 and the punching plate 20, and the first buffer spring 90 may be sleeved on the mounting post 100 for installation; in other embodiments, the first buffer spring 90 may also be installed in other ways.

[0065] The installation method of the first cutter 60 and the second cutter 70 is described in detail below.

[0066] See also Figure 4 and Figure 5 , Figure 5 yes Figure 4 In the partially enlarged schematic diagram of center A, the first cutter 60 includes an extension section 601 and a boss 602 arranged at the mounting end of the extension section 601, and a through cutter mounting hole 201 is provided on the stamping plate 20. The cutter mounting hole 201 includes a first hole section 2011 and a second hole section 2012 arranged in sequence along the direction pointing to the first positioning plate 10, the diameter of the first hole section 2011 matches the boss 602, and the diameter of the second hole section 2012 matches the extension section 601, and the first cutter 60 can be inserted into the cutter mounting hole 201 from one side of the first hole section 2011.

[0067] The cutter module further includes a cutter locking plate 110 , which is arranged on a side of the stamping plate 20 away from the first positioning plate 10 , and covers the cutter mounting hole 201 , thereby limiting the first cutter 60 .

[0068] Of course, in other embodiments, the first cutter 60 may also be fixed in other ways, such as being directly fixed to the stamping plate 20 by bolts, or being fixed to the stamping plate 20 by welding.

[0069] See also Figure 3 , Figure 3 Schematic diagram of the three-dimensional structure of the cutting knife module of the present application. Figure 3 As shown, the mounting end of the second cutter 70 is fixed to the side of the stamping plate 20, and the first positioning plate 10 is provided with an avoidance groove 103 matching the second cutter 70, so that the second cutter 70 can be inserted into the avoidance groove 103 as the stamping plate 20 moves to perform stamping and cutting on the end of the workpiece to be stamped.

[0070] In order to further improve the movement accuracy of the second cutter 70 , a guide groove 1031 is further provided on the groove wall of the avoidance groove 103 , and a guide block 701 embedded in the guide groove 1031 is provided on the second cutter 70 so that the second cutter 70 can slide along the guide groove 1031 .

[0071] In order to further position the workpiece to be stamped during stamping and avoid deformation of the workpiece during stamping, please refer to Figure 1 and Figure 4 The cutting knife module also includes a positioning pin 120, one end of which is installed on the stamping plate 20, and the other end is extended in the direction pointing to the first positioning plate 10. The positioning pin 120 is arranged at a position corresponding to the positioning hole of the workpiece to be stamped. The first positioning plate 10 is provided with a first avoidance hole 104 matching the positioning pin 120, and the cover plate 40 is provided with a second avoidance hole 402 matching the positioning pin 120.

[0072] By arranging the positioning pins 120, when the stamping plate 20 moves, it can drive the positioning pins 120 to be inserted into the first avoidance hole 104, the positioning hole of the workpiece to be stamped and the second avoidance hole 402 in sequence, thereby achieving positioning and fixing of the workpiece during stamping, and further improving the stamping accuracy.

[0073] The following is a detailed description of the installation method of the positioning pin 120. Figure 6 and Figure 7 , Figure 6 yes Figure 2 Schematic diagram of the cross-sectional structure of the middle BB surface. Figure 7 yes Figure 6 A partial enlarged schematic diagram of B in the figure.

[0074] As shown in the figure, the positioning pin 120 includes a mounting section 1201, a raised section 1202 and a working section 1203 which are sequentially arranged along the direction of the stamping plate 20 pointing to the first positioning plate 10, the diameters of the mounting section 1201 and the working section 1203 are smaller than the diameter of the raised section 1202, and a through positioning pin mounting hole 2013 is provided on the stamping plate 20, the positioning pin mounting hole 2013 includes a third hole section 2014 and a fourth hole section 2015 which are sequentially arranged along the direction pointing to the first positioning plate 10, the diameter of the third hole section 2014 matches the raised section 1202, the diameter of the fourth hole section 2015 matches the working section 1203, and the positioning pin 120 can be inserted into the positioning pin 120 mounting hole 2013 from one side of the third hole section 2014;

[0075] The cutting knife module also includes a locking needle plate 130, which is arranged on the side of the stamping plate 20 away from the first positioning plate 10, and a positioning needle limiting hole 1301 corresponding to the position of the positioning needle mounting hole 2013 is provided on the locking needle plate 130, and the diameter of the positioning needle limiting hole 1301 matches the mounting section 1201 to limit the positioning needle 120.

[0076] In order to achieve buffering of the positioning needle 120 , the cutter module further includes a second buffer spring 140 . The second buffer spring 140 is sleeved on the mounting section 1201 , and the second buffer spring 140 is located between the locking needle plate 130 and the raised section 1202 .

[0077] In order to limit the maximum displacement of the punching plate 20, as Figure 1 As shown, the cutting knife module also includes a first limit block 150 and a second limit block 160 , wherein the first limit block 150 is arranged on the side of the second positioning plate 30 facing the stamping plate 20 , and the second limit block 160 is arranged on the side of the stamping plate 20 facing the first positioning plate 10 .

[0078] The cutting knife module based on the above-mentioned embodiments can realize efficient and high-precision stamping and cutting of the workpiece to be stamped. When applied to a semiconductor clamp welding machine, it can quickly and efficiently stamp and cut the copper flat strip to obtain a high-precision clip, so that the clip can be quickly applied to the clamp welding machine and improve the chip yield.

[0079] It is obvious to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential features of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present application is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present application. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0080] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A cutting knife module, characterized in that: include: A first positioning plate, a punching plate and a second positioning plate are stacked and spaced in sequence, wherein one side of the first positioning plate is provided with a mounting groove for mounting a workpiece to be punched, and the first positioning plate is provided with a cutting opening arranged in the mounting groove and penetrating the first positioning plate; A guide column is arranged between the first positioning plate and the second positioning plate, and the guide column penetrates the stamping plate so that the stamping plate can be slidably arranged along the guide column; A first cutter, one end of which is mounted on the stamping plate, and the other end of which is extended in the direction pointing to the first positioning plate, and the first cutter is arranged at a position corresponding to the cutting opening so that the first cutter can be inserted into the cutting opening to cut the workpiece to be stamped; A second cutter, one end of which is mounted on the stamping plate and the other end of which is extended in the direction pointing to the first positioning plate, and the second cutter is arranged at a position corresponding to one end of the mounting groove so that the second cutter can cut the end of the workpiece to be stamped; A cover plate is arranged on the first positioning plate, and the cover plate covers the mounting groove to limit the workpiece to be punched. An opening corresponding to the cutting opening is provided on the cover plate so that the first cutting knife can be inserted into the opening.

2. The cutting module according to claim 1, characterized in that: Also included is a first buffer spring, which is arranged between the first positioning plate and the stamping plate.

3. The cutting module according to claim 1, characterized in that: The first cutter includes an extension section and a convex head arranged at the mounting end of the extension section, the stamping plate is provided with a through cutter mounting hole, the cutter mounting hole includes a first hole section and a second hole section arranged in sequence along a direction pointing to the first positioning plate, the diameter of the first hole section matches the convex head, the diameter of the second hole section matches the extension section, and the first cutter can be inserted into the cutter mounting hole from one side of the first hole section; The cutter module also includes a cutter locking plate, which is arranged on a side of the stamping plate away from the first positioning plate, and covers the cutter mounting hole to limit the first cutter.

4. The cutting blade module according to claim 1, characterized in that: It also includes a positioning pin, one end of which is installed on the stamping plate, and the other end is extended in the direction of the first positioning plate. The positioning pin is arranged at a position corresponding to the positioning hole of the workpiece to be stamped, and the first positioning plate is provided with a first avoidance hole matching the positioning pin, and the cover plate is provided with a second avoidance hole matching the positioning pin.

5. The cutting module according to claim 4, characterized in that: The positioning pin includes a mounting section, a protruding section and a working section which are sequentially arranged along the direction from the stamping plate to the first positioning plate, the diameters of the mounting section and the working section are smaller than the diameter of the protruding section, a penetrating positioning pin mounting hole is provided on the stamping plate, the positioning pin mounting hole includes a third hole section and a fourth hole section which are sequentially arranged along the direction from the first positioning plate, the diameter of the third hole section matches the protruding section, the diameter of the fourth hole section matches the working section, and the positioning pin can be inserted into the positioning pin mounting hole from one side of the third hole section; The cutting knife module also includes a locking needle plate, which is arranged on the side of the stamping plate away from the first positioning plate, and a positioning needle limiting hole corresponding to the position of the positioning needle mounting hole is provided on the locking needle plate, and the diameter of the positioning needle limiting hole matches the mounting section to limit the positioning needle.

6. The cutting module according to claim 5, characterized in that: It also includes a second buffer spring, which is sleeved on the mounting section and located between the needle locking plate and the raised section.

7. The cutting module according to claim 1, characterized in that: The mounting end of the second cutter is fixed to the side surface of the stamping plate, and the first positioning plate is provided with an avoidance groove matching the second cutter.

8. The cutting module according to claim 7, characterized in that: A guide groove is provided on the groove wall of the avoidance groove, and a guide block embedded in the guide groove is provided on the second cutter, so that the second cutter can slide along the guide groove.

9. The cutting blade module according to claim 1, characterized in that: Also includes: A first limit block is arranged on a side of the second positioning plate facing the stamping plate to limit the maximum displacement of the stamping plate; The second limiting block is arranged on a side of the stamping plate facing the first positioning plate to limit the maximum displacement of the stamping plate.

10. The cutting module according to claim 1, characterized in that: It also includes a third positioning plate, which is covered on the cover plate and fixed to the cover plate and the first positioning plate. The third positioning plate is provided with a hollow portion exposing the opening.

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