Double-row in-line pipe shell clamp

Abstract

The invention discloses a double in-line insertion tube shell clamp which comprises a base, a supporting frame and a supporting bottom cover, the base is provided with a groove, the supporting frame is limited to the upper portion of the base, the supporting frame is provided with a limiting rod, when a tube shell is arranged in the groove, the limiting rod is located between two circuit pins of the tube shell, and the limiting rod is provided with a protruding block. When the tube shell is turned out of the groove and is suspended on the limiting rod, the protruding block longitudinally limits the tube shell, hollow areas are formed on the two transverse sides of the limiting rod to contain the circuit pins, and the supporting bottom cover is limited to the upper portion of the supporting frame and is provided with a containing cavity. According to the invention, a worker can turn over a plurality of tube shells at the same time in a manner of not damaging the circuit inner cavity of the tube shell, so that the efficiency requirement is met, and the circuit inner cavity is effectively protected; in the process, the circuit pins of the tube shell are always in an overhead state, the pin area is not scratched and deformed, and the product quality is ensured; meanwhile, the clamp can also be suitable for multi-model double-in-line series pipe shells, the application range is wide, and the manufacturing cost of the clamp is saved.

Description

Technical Field

[0001] The invention relates to the technical field of semiconductor manufacturing and packaging, and in particular to a dual in-line tube shell clamp. Background Art

[0002] Parallel seam welding is a welding process commonly used in the airtight packaging of military integrated circuits. Its working principle and steps are as follows: the cover plate and the tube shell sealing ring are precisely aligned, and then the cover plate and the tube shell are fixed by spot welding using electrodes, and finally, under the rolling discharge of the electrode, the contact points between the cover plate and the sealing ring are continuously melted and cooled to form welding points, which are connected to form welding lines, and finally form an airtight seal.

[0003] Before parallel seam welding, the shell needs to be placed in a specific fixture for pre-spot welding. In the prior art, the operator clamps the shell with tweezers or directly picks it up with his hands and flips it over and places it on the fixture for welding. Since most military integrated circuits have water vapor and airtightness requirements, the parallel seam welding process is usually carried out in a high-pressure nitrogen work chamber, which requires the process operator to wear gloves for operation, and requires a high level of skill from the operator. If the operator is not careful, the internal cavity bonding wire of the shell may be touched. Once damaged, it will lead to reduced reliability after circuit packaging or short circuit failure and other risks. Summary of the invention

[0004] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a dual in-line tube shell clamp which can avoid damaging the circuit inner cavity of the tube shell during the tube shell flipping process and ensure the product yield.

[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is: to provide a dual-row in-line tube shell clamp for flipping the dual-row in-line tube shell, comprising a base, a support frame and a support bottom cover, the upper end surface of the base is concavely provided with a plurality of grooves for placing the tube shell, and the plurality of grooves are distributed on the base in a matrix shape, the support frame is limited to the upper part of the base, and the support frame is provided with a plurality of limit rods at positions corresponding to the plurality of grooves, when the tube shell is placed in the groove, the limit rod is located between two circuit pins of the tube shell to limit the tube shell laterally, and a protrusion is provided on the lower side of the limit rod, when the tube shell is flipped out of the groove and suspended on the limit rod, the protrusion limits the tube shell longitudinally, and hollow areas are formed on both lateral sides of each limit rod to accommodate the circuit pins of the tube shell, the support bottom cover is limited to the upper part of the support frame, and the support bottom cover has an accommodating cavity on the side facing the support frame, and the circuit pin extends into the accommodating cavity through the hollow area.

[0006] Furthermore, a clearance hole is provided at each end corner of the groove, and the clearance hole is opened along the height direction of the groove and is connected with the groove.

[0007] Furthermore, the base and the support frame are limitedly connected by a surrounding frame, the surrounding frame is arranged around the outer periphery of the base on a side facing the support frame, and the inner size of the surrounding frame matches the size of the support frame.

[0008] Furthermore, the protrusion does not overlap with the groove on a horizontal projection plane, and when the support frame is engaged with the base, the protrusion is used to abut against a side of the base facing the support frame so that the support frame and the base do not clamp the tube shell.

[0009] Furthermore, the support bottom cover includes a supporting portion and an enclosure portion, the enclosure portion encloses the outer periphery of the supporting portion on a side facing the support frame to form the accommodating cavity, the outer periphery of the enclosure portion at one end away from the supporting portion is provided with a convex edge, the outer dimension of the convex edge is larger than the inner dimension of the enclosure portion and a step surface is formed between the enclosure portion, the inner dimension of the convex edge matches the outer dimension of the support frame, the support frame is placed in the convex edge and contacts the step surface to be limitedly engaged with the support bottom cover.

[0010] Furthermore, the sum of the height of the protruding edge and the height of the surrounding frame is equal to the height of the supporting frame.

[0011] Furthermore, a pillar is provided in the middle of the supporting portion, and when the support frame and the support bottom cover are limitedly engaged, the pillar contacts the support frame.

[0012] Furthermore, the enclosing portion is provided with openings at positions corresponding to the two lateral sides of the pillar, and the width of the openings is greater than the width of the pillar.

[0013] Furthermore, the base, the support frame and the support bottom cover are all made of aluminum alloy.

[0014] Furthermore, the surfaces of the base, the support frame and the support bottom cover are all treated by a sandblasting and oxidation blackening process.

[0015] The dual in-line plug-in tube shell fixture of the present invention has at least the following beneficial effects: it enables workers to flip multiple tube shells at the same time in a manner that does not damage the circuit inner cavity of the tube shell, which not only meets the efficiency requirements but also effectively protects the circuit inner cavity; during the process of flipping the tube shell and the subsequent welding process, the circuit pins of the tube shell are always in an overhead state, and the pin area is not scratched or deformed, thereby ensuring product quality; at the same time, the fixture can also be applied to multiple models of dual in-line plug-in series tube shells, has a wide range of applications, and saves the cost of fixture manufacturing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 The structure of the dual in-line tube housing clamp of the present invention is exploded Figure 1 ;

[0018] Figure 2 The structure of the dual in-line tube housing clamp of the present invention is exploded Figure 2 ;

[0019] Figure 3 for Figure 2 Schematic diagram of the local structure at A in the middle;

[0020] Figure 4 It is a schematic structural diagram of a support bottom cover in an embodiment of a dual in-line tube housing fixture of the present invention;

[0021] Figure 5 for Figure 4 Schematic diagram of the local structure at B in the middle;

[0022] Figure 6 It is a structural schematic diagram of a dual in-line tube housing fixture in an embodiment of the present invention when the base, the support frame and the support bottom cover are combined;

[0023] Figure 7 It is a schematic structural diagram of a tube shell in an embodiment of a dual in-line tube shell fixture of the present invention.

[0024] The meanings of the symbols in the accompanying drawings are:

[0025] Base 1, groove 11, make way hole 12, frame 13, support frame 2, limit rod 21, protrusion 22, hollow area 23, support bottom cover 3, accommodating cavity 31, supporting part 32, enclosure part 33, pillar 34, convex edge 35, step surface 36, opening 37, buckle assembly 4, handle 41, end foot 411, cross bar 42, hinged seat 43, sleeve rod 44, coil spring 45, slide groove 46, limit edge 47, annular protrusion 48, tube shell 5, circuit pin 51, circuit cavity 52. DETAILED DESCRIPTION

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] Please refer to Figure 1 and Figure 2 The dual in-line tube housing clamp of the present invention is used to flip the dual in-line tube housing 5 (hereinafter referred to as "tube housing 5", please refer to Figure 7), comprising a base 1, a support frame 2 and a support bottom cover 3 stacked in sequence. The upper end surface of the base 1 is concavely provided with a plurality of grooves 11 for placing the tube shell 5. The support frame 2 is limited to the upper part of the base 1, and a plurality of limiting rods 21 are provided on the support frame 2 at positions corresponding to the plurality of the grooves 11. When the tube shell 5 is placed in the grooves 11, the limiting rods 21 are located between two circuit pins 51 of the tube shell 5 to limit the tube shell 5 laterally. A protrusion 22 is provided on the lower side of the limiting rod 21. When the tube shell 5 is flipped out of the groove 11 and suspended on the limiting rod 21, the protrusion 22 limits the tube shell 5 longitudinally. Hollow areas 23 are formed on both lateral sides of each limiting rod 21 to accommodate the circuit pins 51 of the tube shell 5. The support bottom cover 3 is limited to the upper part of the support frame 2 and the support bottom cover 3 has a accommodating cavity 31 on the side facing the support frame 2. The circuit pin 51 extends into the accommodating cavity 31 through the hollow area 23.

[0028] The grooves 11 on the bottom cover are arranged in a matrix, that is, the grooves 11 are arranged in rows and columns along the length and width directions on the surface of the bottom cover, the grooves 11 are rectangular, and the grooves 11 themselves are opened along the length direction of the bottom cover. Figure 3 , each of the four corners of the groove 11 is provided with a clearance hole 12, and the clearance hole 12 is opened along the height direction of the groove 11 and communicates with the groove 11. The corners of the tube shell 5 are relatively fragile. When the tube shell 5 is placed in the groove 11, the corners of the tube shell 5 will not directly abut against the inner wall of the groove 11, but extend into the clearance hole 12, so that the corners of the tube shell 5 can be protected. The upper end surface of the bottom cover is provided with a surrounding frame 13, and the surrounding frame 13 is arranged around the outer periphery of the side of the base 1 facing the support frame 2 (that is, the upper end surface of the base 1 in the figure), and the inner size of the surrounding frame 13 matches the size of the support frame 2 so that the support frame 2 can be engaged therein.

[0029] The support frame 2 is limited to the upper part of the base 1, and the support frame 2 is in a square frame shape. The outer dimensions of the support frame 2 match the inner dimensions of the surrounding frame 13 so that it can be snapped in. There are a plurality of limit rods 21, each of which is arranged along the length direction of the support frame 2, and a plurality of limit rods 21 are arranged at intervals along the width direction of the support frame 2. Specifically, each limit rod 21 is arranged corresponding to the row of the grooves 11, and a plurality of grooves 11 located in the same row correspond to the same limit rod 21. The hollow area 23 is located between two adjacent limit rods 21, and a limit rod 21 located at the edge also has a hollow area 23 on the side away from the other limit rods 21. The height of the limit rod 21 is less than the height of the support frame 2. Each limit rod 21 is provided with a plurality of protrusions 22, and the protrusions 22 are arranged at the position between two adjacent grooves 11 in a row of grooves 11 corresponding to the limit rod 21. The sum of the height of the protrusion 22 and the height of the limiting rod 21 is equal to the height of the support frame 2. When the tube shell 5 is placed in the groove 11, the circuit pin 51 of the tube shell 5 extends into the hollow area 23; the side wall of the tube shell 5 abuts against the protrusion 22, or abuts against the step wall formed by the height difference between the limiting rod 21 and the support frame 2, and the protrusion 22 here serves to limit the tube shell 5. When the support frame 2 is engaged with the base 1, the protrusion 22 is also used to abut against the side of the base 1 facing the support frame 2 so that the support frame 2 and the base 1 do not clamp the tube shell 5, so that the tube shell 5 has a certain amount of space for movement and will not be pressed and damaged by the support frame 2 and the base 1.

[0030] Please refer to Figure 4 The support bottom cover 3 can be located on the side of the support frame 2 away from the base 1, that is, attached Figure 1The upper side of the support frame 2 in the support bottom cover 3. The support bottom cover 3 includes a supporting portion 32 and an enclosure portion 33. A pillar 34 is provided in the middle of the supporting portion 32. The pillar 34 is arranged along the width direction of the support frame 2. When the support frame 2 and the support bottom cover 3 are limited and snap-fitted, the pillar 34 contacts the support frame 2. The enclosure portion 33 surrounds the outer periphery of the supporting portion 32 on one side facing the support frame 2 to form the accommodating cavity 31. A flange 35 is provided around the outer periphery of one end of the enclosure portion 33 away from the supporting portion 32. The outer dimension of the flange 35 is larger than the inner dimension of the enclosure portion 33 and a step surface 36 is formed between the enclosure portion 33. The inner dimension of the flange 35 matches the outer dimension of the support frame 2. The support frame 2 is placed in the flange 35 and contacts the step surface 36 to be limited and snap-fitted with the support bottom cover 3. The enclosed portion 33 is provided with openings 37 at positions corresponding to the lateral sides of the pillar 34, and the width of the openings 37 is greater than the width of the pillar 34. The openings 37 are provided to facilitate the user to insert fingers into the accommodating cavity 31, so that it is easier to take out the support frame 2.

[0031] Please refer to Figure 5, a group of buckle assemblies 4 are also provided on both lateral sides of the support bottom cover 3, and the two groups of buckle assemblies 4 are symmetrically arranged. Each group of buckle assemblies 4 includes a handle 41, which is arranged along the width direction of the support bottom cover 3, and the handle 41 has two end feet 411 for connecting with the support bottom cover 3. The two end feet 411 are hinged to the support bottom cover 3 through a cross bar 42 perpendicular to the direction of the end feet 411 and a hinge seat 43, so that the handle 41 can be flipped relative to the support bottom cover 3, and the flipping direction is the height direction of the support bottom cover 3. An elastic reset assembly is provided at each end foot 411 of the handle 41. Each elastic reset assembly includes a sleeve rod 44 and a coil spring 45. The sleeve rod 44 is fixed on the cross bar 42 and the direction of the sleeve rod 44 is consistent with the direction of the end feet 411. A slide groove 46 is opened in the sleeve rod 44, and the slide groove 46 penetrates the sleeve rod 44 in the direction away from the cross bar 42. The end foot 411 extends into the slide groove 46 and is slidably connected with the slide groove 46. The slide groove 46 penetrates the sleeve rod 44 and protrudes radially inward to form a limited edge 47. The side of the end foot 411 extending into the slide groove 46 protrudes radially outward to form an annular protrusion 48. The outer diameter of the end foot 411 matches the inner diameter of the limited edge 47, and the outer diameter of the annular protrusion 48 matches the inner diameter of the slide groove 46. The annular protrusion 48 cooperates with the limited edge 47 to prevent the end foot 411 from slipping out of the slide groove 46. The coil spring 45 is sleeved on the outer periphery of the end foot 411 at a position corresponding to the position between the annular protrusion 48 and the limited edge 47. From the lateral side, the handle 41 is L-shaped, which is convenient for buckling the support frame 2 or the base 1.

[0032] The working method of one embodiment of the dual in-line tube shell fixture of the present invention is as follows: first, the base 1 is placed on the platform with the groove 11 facing upward. Since the tube shell 5 is transported from the previous processing step to the current processing step with the cavity facing downward and the circuit pin 51 facing upward, we keep the tube shell 5 in this state at this time, and hold the circuit pins 51 and place them one by one into the grooves 11. In this way, the tube shell 5 is moved with the cavity facing downward, which can effectively protect the circuit cavity 52 of the tube shell 5, avoid the circuit cavity 52 being exposed to the air upward to cause hidden dangers, and also avoid workers accidentally touching the bonding wire in the cavity, thereby ensuring the yield of the product. It should be emphasized that the groove 11 can be used with several different models of tube shells 5 with the same width but different lengths, with a wide range of applications and strong versatility, saving the manufacturing cost of the fixture.

[0033] Then, the support frame 2 is covered on the base 1 with the protrusion 22 facing downward. The sum of the height of the ridge 35 and the height of the surrounding frame 13 is equal to the height of the support frame 2, so the support frame 2 can be completely enclosed. The support frame 2 is located in the surrounding frame 13, and the protrusion 22 abuts against the upper end surface of the base 1 at a position corresponding to the position between the two grooves 11. Then, the support bottom cover 3 is covered on the support frame 2 and the base 1 with the accommodating cavity 31 facing downward. At this time, the support frame 2 is located in the ridge 35 and in contact with the step surface 36. At this point, the base 1, the support frame 2 and the support bottom cover 3 are assembled. Please refer to Figure 6 .

[0034] Finally, the base 1, the support frame 2 and the support bottom are turned over 180 degrees in the above-mentioned mutually engaged state. At this time, the plurality of tube shells 5 should be in a state where the circuit pins 51 are facing downward. At this time, the support frame 2 is supported on the enclosure 33 and the pillar 34, and the plurality of tube shells 5 are suspended on the limit rod 21. The suspension of the tube shell 5 achieved by the cooperation of the limit rod 21, the hollow area 23 and the accommodating cavity 31 realizes the protection of the circuit pin 51. During the welding process, the circuit pin 51 is not subjected to force, which prevents the circuit pin 51 from being scratched or deformed, thereby ensuring the quality of the product. At this time, the turning over of the plurality of tube shells 5 is completed.

[0035] The base 1 located at the top layer at this time is removed, and subsequent welding work is performed on a plurality of tube shells 5. It is worth mentioning that when the tube shells 5 are pressed down for spot welding, the welding equipment will generate pressure on the tube shells 5, and at this time, the pillars 34 play a supporting role on the middle part of the support frame 2, effectively preventing the support frame 2 from being deformed, ensuring the stability of the support frame 2, and ensuring the quality and strength of the welding.

[0036] It should be emphasized that the base 1, the support frame 2 and the support bottom cover 3 are all made of aluminum alloy with strong corrosion resistance, which can be used for a long time in a complex environment, and the aluminum alloy material also has the advantages of light weight, high strength and strong machinability. At the same time, the surfaces of the base 1, the support frame 2 and the support bottom cover 3 are all made of sandblasting oxidation blackening process. After the spot welding is completed, the equipment will automatically identify the tube shell 5 and pick it up, so that it can produce a large difference with the light reflected by the tube shell 5 during the CCD (machine vision system) recognition process, thereby improving the equipment's recognition accuracy of the tube shell 5.

[0037] As for the buckle assembly 4, when the support frame 2 is engaged with the upper part of the support bottom cover 3, the staff can fold the handle 41 upward to face the support frame 2, and pull the handle 41, so that the handle 41 is engaged with the support frame 2 under the action of the rebound force of the coil spring 45, so that the connection between the support frame 2 and the support bottom cover 3 is more stable, which is convenient for subsequent welding operations. When the device is used, the staff will combine the base 1, the support frame 2 and the support bottom cover 3 together. At this time, the handle 41 can be pulled and buckled to the side of the base 1 farthest from the support bottom cover 3 to combine the three parts more firmly together, so that the three parts are clamped and not easy to rub against each other, which is convenient for storage and reduces wear. When not in use, the handle 41 is folded in the direction away from the support frame 2 and stored on both sides of the support base 1 without affecting other operations.

[0038] Compared with the prior art, the dual in-line plug-in tube shell fixture of the present invention allows workers to flip multiple tube shells 5 at the same time without damaging the circuit inner cavity 52 of the tube shell 5, which not only meets the efficiency requirements but also effectively protects the circuit inner cavity 52; during the process of flipping the tube shell 5 and the subsequent welding process, the circuit pins 51 of the tube shell 5 are always in an overhead state, and the pin area is not scratched or deformed, thereby ensuring product quality; at the same time, the fixture can also be applicable to multiple models of dual in-line plug-in series tube shells, has a wide range of applications, and saves the cost of fixture manufacturing.

Claims

1. A dual in-line tube housing fixture, used for flipping a dual in-line tube housing, characterized in that: The invention comprises a base, a support frame and a support bottom cover, wherein the upper end surface of the base is concavely provided with a plurality of grooves for placing a tube shell, and the plurality of grooves are distributed on the base in a matrix shape, the support frame is limited at the upper part of the base, and a plurality of limit rods are provided at positions corresponding to the plurality of grooves on the support frame, when the tube shell is placed in the groove, the limit rod is located between two circuit pins of the tube shell to limit the tube shell laterally, and a protrusion is provided on the lower side of the limit rod, and when the tube shell is flipped out of the groove and suspended on the limit rod, the protrusion limits the tube shell longitudinally, and hollow areas are formed on both lateral sides of each limit rod to accommodate the circuit pins of the tube shell, the support bottom cover is limited at the upper part of the support frame and the support bottom cover has an accommodating cavity on a side facing the support frame, and the circuit pin extends into the accommodating cavity through the hollow area.

2. The dual in-line socket housing fixture according to claim 1, characterized in that: A clearance hole is provided at each end corner of the groove, and the clearance hole is opened along the height direction of the groove and communicated with the groove.

3. The dual in-line socket housing fixture according to claim 1, characterized in that: The base is limitedly connected to the support frame by a surrounding frame, the surrounding frame is arranged around the outer periphery of the base on a side facing the support frame, and the inner size of the surrounding frame matches the size of the support frame.

4. The dual in-line housing fixture as claimed in claim 3, characterized in that: The protrusion does not overlap with the groove on a horizontal projection plane. When the support frame is engaged with the base, the protrusion is used to abut against a side of the base facing the support frame so that the support frame and the base do not clamp the tube shell.

5. The dual in-line housing fixture as claimed in claim 4, characterized in that: The support bottom cover includes a supporting portion and an enclosure portion, wherein the enclosure portion encloses the outer periphery of the supporting portion on a side facing the support frame to form the accommodating cavity, and the outer periphery of the enclosure portion at one end away from the supporting portion is surrounded by a convex edge, the outer dimension of the convex edge is larger than the inner dimension of the enclosure portion and a step surface is formed between the enclosure portion, the inner dimension of the convex edge matches the outer dimension of the support frame, and the support frame is placed in the convex edge and in contact with the step surface to be limitedly engaged with the support bottom cover.

6. The dual in-line housing fixture as claimed in claim 5, characterized in that: The sum of the height of the convex edge and the height of the surrounding frame is equal to the height of the support frame.

7. The dual in-line housing fixture as claimed in claim 5, characterized in that: A pillar is provided in the middle of the supporting part, and when the support frame is limitedly engaged with the support bottom cover, the pillar contacts the support frame.

8. The dual in-line housing fixture as claimed in claim 7, characterized in that: The enclosing portion is provided with openings at positions corresponding to the two lateral sides of the pillar, and the width of the openings is greater than the width of the pillar.

9. The dual in-line socket housing fixture according to claim 1, characterized in that: The base, the support frame and the support bottom cover are all made of aluminum alloy.

10. The dual in-line socket housing fixture according to claim 9, characterized in that: The surfaces of the base, the support frame and the support bottom cover are all processed by sandblasting and oxidation blackening process.

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