Anti-static universal tool for cutting pins of SOP (Small Outline Package) device

Abstract

The utility model belongs to the technical field of component processing, and particularly relates to an anti-static universal tool for cutting pins of an SOP (Small Outline Package) device. The cutting tool comprises a base assembly, an anti-static supporting plate assembly, a cutter assembly and an adjusting and limiting assembly. According to a scale step on the anti-static supporting plate assembly, the required length of a pin is reserved by referring to a scale line, a clamping plate and a baffle on the electric supporting plate assembly are pushed to limit a packaging device, a cutter handle on the cutter assembly is pressed downwards, and a limiting assembly is adjusted to automatically limit and tighten a chopper on the cutter assembly 3; therefore, the pin of the SOP packaging device can be cut. The anti-static universal tool for pin cutting of the SOP packaging device has the advantages of being simple in structure, easy and convenient to operate, good in finished product consistency, high in universality, anti-static and the like, and has good popularization value.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of component processing, and particularly relates to a general-purpose tool for cutting the pins of SOP packaging devices to prevent static electricity, which is suitable for cutting the pins of various SOP packaging devices to a specified size. BACKGROUND

[0002] Before being attached to a surface, the pins of an existing SOP packaging device have a significant deviation from the actual requirements during welding and assembly. To meet the technical requirements during welding and assembly of the SOP packaging device, the length of the pins of the SOP packaging device needs to be cut to the most suitable length. Most existing tools for cutting the pins of SOP packaging devices are simple and made of metal. The pre-reserved size of the pins is difficult to control, the consistency is poor, the surface quality is poor, and some SOP packaging devices are damaged by static electricity after the pins are cut. SUMMARY

[0003] (I) Technical problem to be solved

[0004] The utility model wants to solve the technical problem of providing a general-purpose tool for cutting the pins of SOP packaging devices to prevent static electricity, which solves the problems of poor surface quality and poor size consistency of the pins after cutting using the existing simple tool for cutting the pins of SOP packaging devices, and static electricity damaging some SOP devices after cutting.

[0005] (II) Technical solution

[0006] To solve the above technical problems, the utility model provides a general-purpose tool for cutting the pins of SOP packaging devices to prevent static electricity, which comprises a base assembly 1, an anti-static supporting plate assembly 2, a cutter assembly 3, and an adjustment limiting assembly 4.

[0007] The base assembly comprises a base 5, a base plate 6, a first connecting screw 7, a first limiting screw 8, a second connecting screw 9, a cover plate 10, a blade 11, a third connecting screw 12, a fourth connecting screw 13, and a grounding wire 14.

[0008] The anti-static supporting plate assembly comprises an adjustment positioning plate 15, a second limiting screw 16, a supporting plate 17, a clamping plate 18, and a fifth connecting screw 19.

[0009] The cutter assembly comprises a connecting shaft 21, a shaft sleeve 22, a third limiting screw 23, a cutter 24, a cylindrical pin 25, a sixth connecting screw 26, a cutter handle 27, a first connecting nut 28, a first flat washer 29, a second connecting nut 30, a second flat washer 31, a disc spring 32, and a cutter holder 33.

[0010] The adjustment limiting assembly comprises a seventh connecting screw 34, an adjustment nut 35, a connecting plate 36, a compression spring 37, a limiting plate 38, and an adjustment screw 39.

[0011] Wherein, the base plate 17, the card plate 18 are all adopted terrazzo material, the adjusting positioning plate 15 is adopted high-transparency acrylic plate material, all the rest metal material parts are directly or indirectly connected with the base 5, the base is equipped with grounding wire 14 and is communicated with the earth, the tooling has the anti-static effect as a whole.

[0012] Wherein, the base 5, the base plate 6 are connected through the first connecting screw 7;

[0013] The base plate 6, the base plate 17 are connected through the fifth connecting screw 19;

[0014] The base plate 6, the blade 11 are connected through the third connecting screw 12;

[0015] The gap between the blade 11 and the base plate 17 is not more than 0.02mm, and the height is consistent;

[0016] The base 5, the tool rest 33 are connected through the fourth connecting screw 13;

[0017] The base 5, the connecting plate 36 are connected through the seventh connecting screw 34.

[0018] Wherein, the card plate 18 is inserted into the recessed part of the base plate 6 and the base plate 17, and then the cover plate 10 is assembled, the base plate 6 and the cover plate 10 are connected through the second connecting screw 9; the adjusting positioning plate 15 is inserted into the step of the base plate 17, and the adjusting positioning plate 15 and the base plate 6 are connected through the second limiting screw 16.

[0019] Wherein, the shaft sleeve 22 is inserted into the hole on both sides of the tool rest 33, the cutter 24 and the disc spring 32 are inserted into the slot of the tool rest 33, the connecting shaft 21 is inserted into the shaft sleeve 22, the cutter 24 and the disc spring 32, and then the second connecting nut 30 and the second flat washer 31 are fastened to the connecting shaft 21, so as to completely avoid the axial movement of the cutter 24 on the connecting shaft 21; the third limiting screw 23 is threadedly connected with the cutter 24, and the end surface abuts against the connecting shaft 21, so as to completely avoid the radial movement of the cutter 24 on the connecting shaft 21, and make the cutter 24 have reliable positioning support; the cutter 24 and the blade handle 27 are connected through the cylindrical pin 25, the sixth connecting screw 26, the first connecting nut 28 and the first flat washer 29.

[0020] Wherein, the card plate 18 and the adjusting positioning plate 15 are arranged on the base plate 17 and slide along the X and Y directions respectively, and the adjustable stroke is 50mm×50mm; the positioning side of the adjusting positioning plate 15 has a 1mm gap with the base plate 17 in the Z direction, so as to facilitate the insertion of the pins of the SOP packaged device, and the card plate 18 is positioned in the X direction through the first limiting screw 8, and the adjusting positioning plate 15 is positioned in the Y direction through the second limiting screw 16, so that the tooling not only has universality, but also can cut the pins of a single SOP packaged device in large quantities.

[0021] The sleeve 22 is made of brass, which reduces the abrasion of the cutter holder 33, the cutter hole and the connecting shaft 21 and has lubricating effect.

[0022] The sleeve 22 can be replaced alone after abrasion, so that the tool can serve for a long time with high precision.

[0023] The disc spring 32 has a supporting surface and adjustability, so that the cutter blade and the blade can be ground again to be flush.

[0024] The adjusting screw 39 is inserted into the limiting plate 38, the compression spring 37, the connecting plate 36 and fastened with the adjusting nut 35, and the adjusting nut 35 pre-adjusts the distance between the limiting plate 38 and the cutter 24.

[0025] (Three) beneficial effects

[0026] Compared with the prior art, the utility model has the beneficial effects that the SOP packaging device pin cutting anti-static universal tool can cut and shape the SOP packaging device pin with high precision, high efficiency and safety, and solves the problems of poor pin surface quality and poor size consistency after cutting and static breakdown of some SOP devices.

[0027] The tool has universality and can be adjusted and positioned according to the size of different SOP device shapes, thereby saving the cost of special tools.

[0028] The tool has cyclic utility, the sleeve is made of brass, which can reduce the abrasion of the cutter holder, the cutter hole and the connecting shaft and has lubricating effect, the sleeve can be replaced alone after abrasion, so that the tool can serve for a long time with high precision, the disc spring has a supporting surface and adjustability, the adjusting limiting assembly has dynamic adjustment capacity, the cutter blade and the blade can be ground again to be flush, and the tool can still cut the pin with high precision.

[0029] After cutting the pins of thousands of different types of SOP packaging devices, the pin surface quality is high, the size consistency is high, and no loss caused by static breakdown of the device occurs, which verifies that the tool can meet the requirements of high precision, high efficiency, safety, reliability and the like of cutting the pins of various SOP packaging devices. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structure diagram of a SOP packaging device pin cutting anti-static universal tool.

[0031] Figure 2It is the base assembly structure schematic view.

[0032] Figure 3 It is the anti-static tray assembly structure schematic view.

[0033] Figure 4 It is the cutter assembly structure schematic view.

[0034] Figure 5 It is the adjustment limiting assembly structure schematic view.

[0035] Figure 6 It is the effect picture of the general tooling for clamping and positioning SOP packaging device.

[0036] Figure 7 It is the partial enlarged effect picture of the general tooling for clamping and positioning SOP packaging device. DETAILED DESCRIPTION

[0037] In order to make the purpose, content and advantages of the utility model more clear, the specific implementation of the utility model is described in further detail below in combination with the drawings and examples.

[0038] In order to solve the above technical problem, the utility model provides a general tooling for clamping and positioning SOP packaging device, as shown in the figure, Figures 1-4 The tooling comprises a base assembly 1, an anti-static tray assembly 2, a cutter assembly 3 and an adjustment limiting assembly 4.

[0039] The base assembly comprises a base 5, a base plate 6, a first connecting screw 7, a first limiting screw 8, a second connecting screw 9, a cover plate 10, a blade 11, a third connecting screw 12, a fourth connecting screw 13 and a grounding wire 14.

[0040] The anti-static tray assembly comprises an adjustment positioning plate 15, a second limiting screw 16, a tray plate 17, a clamping plate 18, a fifth connecting screw 19 and a scale line 20.

[0041] The cutter assembly comprises a connecting shaft 21, a shaft sleeve 22, a third limiting screw 23, a cutter 24, a cylindrical pin 25, a sixth connecting screw 26, a cutter handle 27, a first connecting nut 28, a first flat pad 29, a second connecting nut 30, a second flat pad 31, a disc spring 32 and a cutter holder 33.

[0042] The adjustment limiting assembly comprises a seventh connecting screw 34, an adjustment nut 35, a connecting plate 36, a compression spring 37, a limiting plate 38 and an adjustment screw 39.

[0043] The pallet 17 and the card plate 18 are made of terrazzo, the adjustment and positioning plate 15 is made of high-transparency acrylic sheet, and all other metal parts are directly or indirectly connected to the base 5. The base is equipped with a grounding wire 14 connected to the ground, and the tooling as a whole has anti-static function.

[0044] The base 5 and the base plate 6 are connected by the first connecting screw 7;

[0045] The base plate 6 and the support plate 17 are connected by the fifth connecting screw 19;

[0046] The substrate 6 and the blade 11 are connected by a third connecting screw 12;

[0047] The gap between the blade 11 and the support plate 17 is no greater than 0.02mm, and their heights are consistent.

[0048] The base 5 and the tool holder 33 are connected by the fourth connecting screw 13;

[0049] The base 5 and the connecting plate 36 are connected by the seventh connecting screw 34.

[0050] The card plate 18 is inserted into the groove of the base plate 6 and the support plate 17, and then the cover plate 10 is assembled. The base plate 6 and the cover plate 10 are connected by the second connecting screw 9. The groove of the adjustment positioning plate 15 is inserted into the step of the support plate 17, and the adjustment positioning plate 15 and the base plate 6 are connected by the second limiting screw 16.

[0051] The bushing 22 is inserted into the holes on both sides of the tool holder 33. The guillotine 24 and the disc spring 32 are inserted into the groove of the tool holder 33. After the connecting shaft 21 is inserted into the bushing 22, the guillotine 24 and the disc spring 32, it is fastened to the connecting shaft 21 by the second connecting nut 30 and the second flat washer 31, thereby completely preventing the guillotine 24 from moving axially on the connecting shaft 21. The third limiting screw 23 is threaded to the guillotine 24, and its end face is pressed against the connecting shaft 21, thereby completely preventing the guillotine 24 from moving radially on the connecting shaft 21, so that the guillotine 24 has reliable positioning support. The guillotine 24 and the tool holder 27 are connected by the cylindrical pin 25, the sixth connecting screw 26, the first connecting nut 28 and the first flat washer 29.

[0052] The clamping plate 18 and the adjusting positioning plate 15 are mounted on the support plate 17 and slide along the X and Y directions respectively. The adjustable stroke is 50mm×50mm, which is suitable for clamping and positioning more than 95% of SOP packaged devices. The positioning side of the adjusting positioning plate 15 has a 1mm gap with the support plate 17 in the Z direction, which facilitates the insertion of SOP packaged device pins. The clamping plate 18 is positioned in the X direction by the first limiting screw 8, and the adjusting positioning plate 15 is positioned in the Y direction by the second limiting screw 16, so that the tooling is not only universal, but also can perform large-scale fixed-size cutting of single SOP packaged device pins.

[0053] The sleeve 22 is made of brass, which reduces the wear of the cutter holder 33, the cutter 24 and the connecting shaft 21 and has lubricating effect.

[0054] The sleeve 22 can be replaced alone after wear, so that the tool can serve for a long time with high precision.

[0055] The disc spring 32 has a supporting surface and adjustability, so that the cutter 24 and the blade 11 are still flush after regrinding.

[0056] The adjusting screw 39 is inserted into the limiting plate 38, the compression spring 37, the connecting plate 36 and fastened with the adjusting nut 35, and the adjusting nut 35 pre-adjusts the distance between the limiting plate 38 and the cutter 24.

[0057] Embodiment 1

[0058] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the utility model provides a kind of SOP packaging device pin cutting anti-static general tool, including base assembly 1, anti-static supporting plate assembly 2, tool assembly 3, adjusting limiting assembly 4, base 5, base plate 6, first connecting screw 7, first limiting screw 8, second connecting screw 9, cover plate 10, blade 11, third connecting screw 12, fourth connecting screw 13, ground wire 14, adjusting positioning plate 15, second limiting screw 16, supporting plate 17, clamping plate 18, fifth connecting screw 19, scale line 20, connecting shaft 21, sleeve 22, third limiting screw 23, cutter 24, cylindrical pin 25, sixth connecting screw 26, tool handle 27, first connecting nut 28, first flat pad 29, second connecting nut 30, second flat pad 31, disc spring 32, cutter holder 33, seventh connecting screw 34, adjusting nut 35, connecting plate 36, compression spring 37, limiting plate 38, adjusting screw 39.

[0059] As shown in Figure 2 and Figure 3As shown, the main operation is to control the base assembly and anti-static support plate assembly to achieve the purpose of positioning. Before use, the anti-static support plate assembly and the base assembly are fixed by using four first connecting screws (M5x20); during use, the SOP package device is placed on the support plate with one side flat against the step surface, the position of the SOP package device is adjusted according to the scale line, the clamping plate is pushed to the side of the SOP package device, the clamping plate is positioned by tightening the first limiting screw (M4x16), thereby limiting the X-direction freedom of the SOP package device, the adjusting positioning plate is pushed to the tail of the SOP package device, the adjusting positioning plate is positioned by tightening the second limiting screw (M6x25), thereby limiting the Y-direction freedom of the SOP package device, and during cutting, the operator's hand presses the upper end surface of the SOP package device, thereby limiting the Z-direction freedom of the SOP package device.

[0060] As shown in Figure 2 , Figure 4 and Figure 5 , the main adjustment is to adjust the tool assembly, base assembly and adjusting limiting assembly to achieve high cutting precision. Before use, the tool assembly and the base assembly are fixed by using two fourth connecting screws (M10x20); the adjusting limiting assembly and the base assembly are fixed by using two seventh connecting screws (M6x20); the two brass shaft sleeves (Φ20x2x25) are inserted into the Φ20 holes on both sides of the tool holder, then the cutter and the disc spring are inserted into the tool holder in sequence, and finally the Φ16 connecting shaft is inserted into the shaft sleeve, cutter, disc spring, shaft sleeve and second flat pad inner hole in sequence, and the connecting shaft is connected and fastened with the second connecting nut by screwing; the cutter and the connecting shaft are fastened by using two third limiting screws; the adjusting screw is inserted into the limiting plate inner hole, the compression spring is inserted into the connecting plate inner hole, and the compression spring is inserted between the limiting plate and the connecting plate boss, and then the adjusting nut is connected with the adjusting screw. Before cutting the device, the adjusting nut needs to be pre-adjusted to ensure that the interference distance between the cutter and the limiting plate is between 1mm and 2mm. During cutting, the adjusting limiting assembly has dynamic adjustment capability, and the internal damping force can ensure that the Y-direction repeated positioning accuracy of the cutter blade edge and the blade edge is not greater than 0.01mm.

[0061] As shown in Figure 2 and Figure 3 , the main anti-static demand is realized by relying on the base assembly and the anti-static support plate assembly. The materials of the support plate, clamping plate and adjusting positioning block in contact with the SOP package device are water millstone and acrylic plate, etc. The rest of the metal material parts are directly or indirectly connected with the base, the base is provided with a grounding wire, and before use, the grounding wire must be connected with the ground; during cutting, the operator must wear an anti-static bracelet.

[0062] The tooling can meet the requirements of high precision, high efficiency, safety and reliability of various SOP package device pin cutting, and has good popularization value.

[0063] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should also be considered as falling within the protection scope of the present application.

Claims

1. A universal tooling for cutting the leads of SOP packaged devices with anti-static properties, characterized in that, The tooling comprises a base assembly (1), an anti-static supporting plate assembly (2), a cutter assembly (3), an adjusting and limiting assembly (4); The base assembly comprises a base (5), a base plate (6), a first connecting screw (7), a first limiting screw (8), a second connecting screw (9), a cover plate (10), a blade (11), a third connecting screw (12), a fourth connecting screw (13), and a grounding wire (14); The anti-static supporting plate assembly comprises an adjusting and positioning plate (15), a second limiting screw (16), a supporting plate (17), a clamping plate (18), and a fifth connecting screw (19); The cutter assembly comprises a connecting shaft (21), a shaft sleeve (22), a third limiting screw (23), a cutter (24), a cylindrical pin (25), a sixth connecting screw (26), a cutter handle (27), a first connecting nut (28), a first flat washer (29), a second connecting nut (30), a second flat washer (31), a disc spring (32), and a cutter holder (33); The adjusting and limiting assembly comprises a seventh connecting screw (34), an adjusting nut (35), a connecting plate (36), a compression spring (37), a limiting plate (38), and an adjusting screw (39); The supporting plate (17) and the clamping plate (18) are made of terrazzo, the adjusting and positioning plate (15) is made of high-transparency acrylic plate, and all the remaining metal parts are directly or indirectly connected with the base (5), and the base is provided with the grounding wire (14) in communication with the ground; The base (5) and the base plate (6) are connected through the first connecting screw (7); The base plate (6) and the supporting plate (17) are connected through the fifth connecting screw (19); The base plate (6) and the blade (11) are connected through the third connecting screw (12); The gap between the blade (11) and the supporting plate (17) is not greater than 0.02 mm, and the heights are consistent; The base (5) and the cutter holder (33) are connected through the fourth connecting screw (13); The base (5) and the connecting plate (36) are connected through the seventh connecting screw (34); The clamping plate (18) is inserted into the groove part of the base plate (6) and the supporting plate (17), and then the cover plate (10) is assembled, the base plate (6) and the cover plate (10) are connected through the second connecting screw (9), the adjusting and positioning plate (15) is clamped into the step of the supporting plate (17), and the adjusting and positioning plate (15) and the base plate (6) are connected through the second limiting screw (16). The shaft sleeve (22) is inserted into the holes on both sides of the cutter holder (33), the cutter (24) and the disc spring (32) are inserted into the slot of the cutter holder (33), the connecting shaft (21) is inserted into the shaft sleeve (22), the cutter (24) and the disc spring (32), then the second connecting nut (30), the second flat washer (31) and the connecting shaft (21) are fastened and connected, so as to completely avoid the axial movement of the cutter (24) on the connecting shaft (21); the third limiting screw (23) is threadedly connected with the cutter (24) and abuts against the end surface of the connecting shaft (21), so as to completely avoid the radial movement of the cutter (24) on the connecting shaft (21), and the cutter (24) has reliable positioning support; the cutter (24) and the cutter handle (27) are connected through the cylindrical pin (25), the sixth connecting screw (26), the first connecting nut (28) and the first flat washer (29).

2. The SOP package pin-trimming anti-static general-purpose tooling according to claim 1, wherein, The clamping plate (18) and the adjusting positioning plate (15) are arranged on the supporting plate (17) and slide along the X and Y directions respectively, and the adjustable stroke is 50mm*50mm; the adjusting positioning plate (15) is positioned on the side of the supporting plate (17) and has a gap of 1mm in the Z direction, so that the SOP packaged device pin can be inserted, the clamping plate (18) is positioned in the X direction through the first limiting screw (8), and the adjusting positioning plate (15) is positioned in the Y direction through the second limiting screw (16).

3. The SOP package pin-trimming anti-static general-purpose tooling according to claim 2, wherein, The shaft sleeve (22) is made of brass.

4. The SOP package pin-trimming anti-static general-purpose tooling according to claim 3, wherein, The disc spring (32) has a supporting surface and is adjustable.

5. The SOP package pin-trimming anti-static general-purpose tooling according to claim 4, wherein, The adjusting screw (39) is inserted into the limiting plate (38), the compression spring (37) and the connecting plate (36) and is fastened with the adjusting nut (35); the adjusting nut (35) pre-adjusts the distance between the limiting plate (38) and the cutter (24).

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