A down-power punching system

Abstract

The present invention discloses a lower power punching system, comprising: a work surface, a lower die being arranged on the front of the work surface; a support surface being arranged parallel to and below the work surface and connected to the work surface by at least a pair of spaced support plates; a transmission mechanism comprising a transmission shaft passing through the support plate, a plurality of eccentric wheels being arranged on the transmission shaft; a plurality of punching assemblies, each punching assembly comprising: a driving connecting rod having an eccentric wheel mating hole at one end and sleeved on one of the eccentric wheels, and the other end being hinged to a punch; a template group comprising a lower template connected to the punch, an upper template connected to the lower template via a plurality of guide columns vertically passing through the work surface and the support surface, and an upper die being arranged on the bottom surface of the upper template. The present invention reduces the number of power mechanisms provided and reduces equipment costs by arranging the punching assemblies below the work surface and allowing one transmission mechanism to simultaneously drive multiple punching assemblies.

Description

Technical Field

[0001] The present invention relates to the field of semiconductor packaging, in particular to a down-power punching system. Background Art

[0002] In the semiconductor component integrated circuit processing industry, some structures of semiconductor component integrated circuits, such as the forming of integrated circuit pins, require the use of punching and forming equipment to perform punching processing on semiconductor component integrated circuits. The driving device drives the punch to perform vertical reciprocating motion, and the punch drives the upper die hanging plate and its multiple upper die modules to repeatedly punch the die downward, and work together with the multiple lower die modules of the lower die to achieve punching and forming processing of the semiconductor component integrated circuit.

[0003] The existing drive device is generally set above the upper die, driving the upper die downward to punch from above, and generally one drive device corresponds to one stamping assembly. When multiple processes require continuous stamping, many drive devices need to be set up, resulting in high setup costs. In addition, setting the drive device above the equipment processing platform will also affect the overall volume of the equipment, especially when the stamping force requirement is large, it needs to occupy more space, and the requirements for the bottom support structure are also higher to maintain a stable center of gravity. Summary of the Invention

[0004] In order to solve the above technical problems in the prior art, the present invention proposes a down-power punching system.

[0005] The technical solution adopted in the present invention is:

[0006] The present invention proposes a down-power punching system, comprising:

[0007] A work surface, with the lower mold set on the front of the work surface;

[0008] A support table is arranged parallel to and below the work table, and is connected to the work table via at least a pair of spaced support plates;

[0009] A transmission mechanism, comprising a transmission shaft passing through the support plate, wherein a plurality of eccentric wheels are provided on the transmission shaft;

[0010] Multiple sets of stamping components, each set of stamping components includes:

[0011] A driving connecting rod, one end of which is provided with an eccentric matching hole and sleeved on one of the eccentric wheels, and the other end of which is hinged to the punch;

[0012] The template group includes a lower template connected to the punch, an upper template connected to the lower template through multiple guide columns vertically passing through the working table and the supporting table, and an upper mold is arranged on the bottom surface of the upper template.

[0013] Furthermore, a pair of clips for buckling the two sides of the bottom of the punch are provided on the lower template, and an overload protection cylinder is provided on the back of the lower template. The telescopic rod of the overload protection cylinder passes through the lower template and presses against the bottom surface of the punch.

[0014] Furthermore, the clips on both sides are also provided with limiting cylinders, the limiting cylinders are connected to the limiting blocks, and the clips are provided with grooves for installing the limiting blocks. The limiting cylinders can drive the limiting blocks to move and push into between the lower template and the bottom surface of the punch or retract into the groove of the clip.

[0015] Furthermore, a washer is provided between the driving connecting rod and the support plate.

[0016] Compared with the prior art, the present invention arranges the stamping assembly below the work surface, and one transmission mechanism can drive multiple groups of stamping assemblies at the same time, thereby reducing the number of power mechanisms to be set and lowering equipment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 Schematic diagram of the three-dimensional structure in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of a three-dimensional structure in which a support plate is hidden in an embodiment of the present invention;

[0020] Figure 3 It is a front view of an embodiment of the present invention.

[0021] 11. Work surface; 12. Support surface; 13. Support plate;

[0022] 2. Drive shaft; 21. Eccentric wheel;

[0023] 31. Driving connecting rod; 32. Punch; 33. Lower template; 34. Guide column; 35. Upper template;

[0024] 41. Overload protection cylinder; 411. Telescopic rod; 42. Buckle; 421. Limit cylinder; 422. Limit block. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] The principle and structure of the present invention are described in detail below with reference to the accompanying drawings and embodiments.

[0027] Existing drive devices are generally set above the work surface, driving the upper die to punch downward from above, and generally one drive device corresponds to one stamping assembly. When multiple processes require continuous stamping, many drive devices need to be set up, resulting in high setup costs. In addition, setting up a drive device above the equipment processing platform will also affect the overall volume of the equipment. In particular, when the punching force requirement is large, more space needs to be occupied, and the requirements for the bottom support structure are also higher to maintain a stable center of gravity. In response to this, the present invention proposes a lower power punching system, which sets the stamping assembly below the work surface. At the same time, a transmission mechanism can drive multiple groups of stamping assemblies at the same time, reducing the setting of the power mechanism and reducing equipment costs.

[0028] like Figure 1 、 2 As shown, the present invention proposes a lower power punching system, including: a work table 11, a support table 12, a transmission mechanism and multiple sets of stamping components. The work table 11 is supported by a support frame (not shown in the figure), so that the work table 11 is stable and reliable. A support table 12 is arranged parallel to the bottom of the work table 11, and the support table 12 is connected to the work table 11 through multiple pairs of spaced support plates 13 (only one pair is shown in the figure). The transmission mechanism is installed on the support plate 13, and the transmission shaft 2 of the transmission mechanism passes through all the support plates 13. Each support plate 13 is correspondingly provided with a bearing passing through the transmission shaft 2 and a bearing hole for installing the bearing. A plurality of eccentric wheels 21 are provided on the transmission shaft 2, and each eccentric wheel 21 is located between two support plates 13. The stamping assembly specifically includes a driving connecting rod 31 and a template group. One end of the driving connecting rod 31 has a matching hole for the eccentric wheel 21 and is directly mounted on an eccentric wheel 21. The other end is hinged to the punch 32. The bottom of the punch 32 is directly connected to the lower template 33 of the template group. The lower template 33 is connected to the upper template 35 through a plurality of guide columns 34 that vertically pass through the work table 11 and the support table 12. The upper template 35 is located above the work table 11. An upper mold (not shown in the figure) is set on the bottom surface of the upper mold 35, and a lower mold (not shown in the figure) is set corresponding to each upper mold on the work table 11.

[0029] The transmission mechanism specifically also includes a motor that drives the transmission shaft 2 to rotate. The specific driving method can be to set a pulley connected through a transmission belt pulley. Multiple motors can be set to correspond to different stamping requirements. The transmission shaft can also be driven to rotate by other methods, which are all within the protection scope of the present invention.

[0030] During specific operation, the motor of the transmission mechanism drives the transmission shaft 2 to rotate, causing the eccentric wheel 21 on the transmission shaft to rotate eccentrically, driving the driving connecting rod 31 and the hinged position of the punch 32 to move up and down, thereby driving the punch 32 to move up and down, and the punch 32 is connected to the lower template 33. The lower template 33 is connected to the upper template 35 through the guide column 34, and finally the upper template 35 is driven up and down by the guide column 34, so that the upper mold set on the bottom surface of the upper template 35 repeatedly punches downward.

[0031] A square groove is provided in the middle of the top surface of the punch 32, and the lower part of the driving connecting rod 31 is inserted into the square groove. A pin is installed on the punch, which can pass through the pin hole at the lower part of the driving connecting rod 31 in the square groove, so that the driving connecting rod 31 can drive the impulse 32 to move up and down.

[0032] like Figure 3 As shown, the specific connection method between the lower template 33 and the punch 32 is as follows: a pair of clips 42 are fixedly provided on the lower template 33, and the clips 42 are spaced apart. The tops of the two opposite sides of the clips 42 protrude to form a snapping portion, and two ridges protrude on both sides of the bottom of the punch 32 to form a snapped portion (from the figure, the clips are in an inverted T shape). When the snapping portion and the snapped portion are engaged, they restrict the punch 32 from moving upward relative to the lower template 33. An overload protection cylinder 41 is provided on the back of the lower template 33. The telescopic rod 411 of the overload protection cylinder 41 passes through the lower template 33 and is located between the two clips 42, and abuts the bottom surface of the punch 32.

[0033] In a specific embodiment, a limiting cylinder 421 is further provided on the outside of each clip 42, and the limiting cylinder 421 is connected to the limiting block 422. A groove for installing the limiting block 422 is provided on the clip 42. The limiting cylinder 421 can drive the limiting block 422 to move and push into the position between the lower template 33 and the bottom surface of the punch 32 or retract into the groove of the clip 42. During stamping, the limiting block 422 is driven by the limiting cylinder 421 to retract into the groove of the clip 42 to avoid affecting the overload protection. When not stamping, it extends out and pushes between the lower template 33 and the bottom surface of the punch 32 so that the overload protection cylinder 41 can be directly closed.

[0034] In a specific embodiment, a washer is provided between the driving connecting rod 31 and the support plate 13 to prevent the driving connecting rod from falling off during the rotation of the transmission shaft.

[0035] It should be noted that the terms used above are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0036] Unless otherwise specifically stated, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to actual proportional relationships. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0037] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0038] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0039] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0040] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A down-power punching system, characterized in that: include: A work surface, with the lower mold set on the front of the work surface; A support table is arranged parallel to and below the work table, and is connected to the work table via at least a pair of spaced support plates; A transmission mechanism, comprising a transmission shaft passing through the support plate, wherein a plurality of eccentric wheels are provided on the transmission shaft; Multiple sets of stamping components, each set of stamping components includes: A driving connecting rod, one end of which is provided with an eccentric matching hole and sleeved on one of the eccentric wheels, and the other end of which is hinged to the punch; A template group includes a lower template connected to the punch, an upper template connected to the lower template via a plurality of guide pillars vertically passing through the working table and the supporting table, and an upper mold is provided on the bottom surface of the upper template; The lower template is provided with a pair of clips for buckling the two sides of the bottom of the punch, and the back of the lower template is provided with an overload protection cylinder, and the telescopic rod of the overload protection cylinder passes through the lower template and presses against the bottom surface of the punch; The clips on both sides are also provided with limiting cylinders, which are connected to limiting blocks. The clips are provided with grooves for installing the limiting blocks. The limiting cylinders can drive the limiting blocks to move between the lower template and the bottom surface of the punch or retract into the groove of the clip.

2. The lower power punching system according to claim 1, characterized in that: A washer is provided between the driving connecting rod and the supporting plate.

Images