A welding tool for electronic product motherboard

Abstract

This invention discloses a welding fixture for electronic product motherboards, relating to the field of electronic product motherboard processing technology. It includes a placement platform, a placement slot, and a square motherboard. The placement slot is formed on the surface of the placement platform, and the square motherboard is disposed inside the placement slot. Four clamping structures are provided on the two inner walls of the placement platform. This invention uses wedge blocks to clamp the square motherboard firmly inside the placement slot. The secure clamping of the square motherboard inside the placement slot facilitates the welding of electronic components onto the square motherboard and makes it easier to lift the square motherboard from the placement slot. It avoids the square motherboard being stuck to the placement slot, making it difficult to remove. Removing the square motherboard from the placement slot is more convenient. Two lifting blocks contact the square motherboard to lift it to a suitable position and fix the square motherboard between the wedge blocks and the lifting blocks. This invention is suitable for clamping square motherboards of different sizes inside the placement slot.

Description

Technical Field

[0001] The invention relates to the technical field of electronic product mainboard processing, in particular to a welding processing tool for electronic product mainboards. Background Art

[0002] The processing of electronic product motherboards requires multiple processes, among which the motherboard and electronic components need to be welded during the processing of the electronic product motherboard, and the electronic components need to be welded on one or both sides of the motherboard. The tooling for welding the electronic product motherboard needs to fix the electronic product motherboard in it;

[0003] In the prior art, the electronic product mainboard is clamped in the tooling and then the electronic components are welded thereto. However, since tools such as tweezers or tin bars are needed to contact the electronic product mainboard during welding, and the electronic product mainboard is directly placed inside the placement slot, the electronic product mainboard cannot be firmly clamped when placed inside the placement slot. During welding, the mainboard is easily touched by tweezers or tin bars and moves, which easily causes position deviation of the electronic components during welding. After the welding of the electronic product mainboard is completed, the electronic product mainboard needs to be taken out from the inside of the placement slot. The mainboard inside the tooling fits the inside of the placement slot and needs to be taken out with fingernails or fingers. It is troublesome to take out the electronic product mainboard from the inside of the placement slot. Summary of the invention

[0004] The purpose of the present invention is to provide a welding tool for electronic product motherboards to solve the problems raised in the above background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A welding tool for electronic product motherboards, comprising a placement table, a placement slot, and a square motherboard, wherein the placement slot is provided on the surface of the placement table, the square motherboard is arranged inside the placement slot, four clamping structures 1 are provided on the two inner walls of the placement table, the square motherboard is located between the four clamping structures 1, the clamping structure 1 comprises a wedge-shaped groove, the wedge-shaped groove is provided on the inner wall of the placement table, a wedge-shaped block is provided inside the wedge-shaped groove, wedge-shaped surfaces are provided on both sides of the bottom end of the wedge-shaped block, the two sides of the wedge-shaped block are slidably connected with the two sides of the wedge-shaped groove, and the wedge-shaped groove The inner top end is rotatably connected with a rotating pin, and the bottom end of the rotating pin is welded with a clamping block. The rotating diameter of the clamping block is larger than the distance between the top end of the wedge block and the sliding bar, and a contact pin is welded at the edge of one end of the clamping block. A fixed plate 1 is welded with the inner top end of the wedge-shaped groove, and a limit pin is connected between the fixed plate 1 and the clamping block. A sliding groove is provided at the top edge of the placement table, and a sliding bar is slidably connected to the inside of the sliding groove. A reserved opening is provided on the side wall of the sliding bar and at each contact pin, and the contact pin is slidably connected to the side wall of the sliding bar and the side wall of the reserved opening.

[0007] As a preferred technical solution of the present invention, the side walls of the wedge-shaped groove are provided with fixing grooves at both ends of the sliding groove, and the wedge blocks are slidably connected to the fixing grooves, and the two wedge blocks on opposite surfaces are relatively close to or far away from each other.

[0008] As a preferred technical solution of the present invention, the end of the clamping block is engaged with the top of the wedge block, the contact pin is engaged with the side wall of the reserved opening, and the direction in which the clamping block clamps the wedge block is the same as the direction in which the telescopic spring presses against the clamping block.

[0009] As a preferred technical solution of the present invention, a pop-up structure is provided inside the placement table and below each wedge block, and the pop-up structure includes a reserved groove 2, which is opened below the wedge groove, and a swing bar is provided inside the reserved groove 2. Both sides of the swing bar have integrally manufactured connecting pins, and the connecting pins of the swing bar are rotatably connected to the inner wall of the reserved groove 2. Contact head 1 and connecting head 2 are respectively integrally provided at both ends of the swing bar, and the contact head 1 is located below the square main board, and the connecting head 2 is slidably connected to the wedge surface of the wedge block. A fixed plate 2 is welded inside the reserved groove 2, and a telescopic spring 3 is connected above the fixed plate 2, and the two ends of the telescopic spring 3 are respectively connected to the swing bar and the fixed plate 2, and the two contact heads 1 on the opposite sides are symmetrically arranged, and the four contact heads 1 swing synchronously.

[0010] As a preferred technical solution of the present invention, the end of the second connector contacts the bottom end of the wedge block, and the protruding height of the first connector is greater than the thickness of the square main board.

[0011] As a preferred technical solution of the present invention, the end of the connecting head 2 contacts the top surface of the wedge surface of the wedge block, and the direction in which the telescopic spring 3 pushes the contact head 1 is opposite to the rotation direction of the swing bar, and the end of the contact head 1 is located inside the reserved groove 2.

[0012] As a preferred technical solution of the present invention, clamping structures 2 are provided at both ends of the placement groove, and the clamping structure 2 includes two reserved grooves 1, a guide rod is inserted into the reserved groove 1, a lifting block is slidably connected inside the guide rod, a contact slope is provided on the top of the lifting block, the edge of the square main board is in contact with the contact slope, a reserved hole is provided on the side wall of the lifting block, and a telescopic spring 2 is provided in the middle of the guide rod and inside the reserved hole.

[0013] As a preferred technical solution of the present invention, the two contact inclined surfaces are close to or far away from each other, and the two contact inclined surfaces and the four wedge blocks are respectively located at the lower surface edge and the upper surface edge of the square main board.

[0014] As a preferred technical solution of the present invention, a protective structure is arranged in the middle of the placement slot and between the two lifting blocks, and the protective structure includes an intermediate plate, which is located between the two lifting blocks, and a foam pad is pasted on the surface of the intermediate plate, and the foam pad is in contact with the lower surface of the square main board. A connecting hole is screwed in the middle of the intermediate plate, and a middle pin is opened in the middle of the placement slot, and the end of the connecting hole is slidably connected to the middle of the middle pin of the placement table.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. A clamping structure 1 is provided, and four wedge blocks are moved toward the middle of the placement groove, so that the wedge blocks can clamp the square mainboard inside the placement groove. The square mainboard is firmly clamped inside the placement groove, which makes it more convenient to weld the electronic components on the square mainboard;

[0017] 2. The contact pin cooperates with the reserved opening of the sliding bar, so that the clamping block and the wedge block can be in a loose connection state. Not only does the clamping block press against the wedge block to prevent loosening, but the staff can also easily take the square motherboard out of the placement slot;

[0018] 3. The clamping structure 1 cooperates with the pop-up structure. After the wedge block is loosened, the telescopic spring 3 drives the contact head 1 to lift up, so that it is easier to lift the square mainboard from the placement slot, avoiding the square mainboard from being attached to the placement slot and being difficult to take out from the placement slot. It is more convenient to take out the square mainboard from the placement slot;

[0019] 4. The second clamping structure cooperates with the wedge block. The square main board can be lifted to a suitable position by using two lifting blocks in contact with the square main board. The lifting block cooperates with the wedge block to fix the square main board between the wedge block and the lifting block, which is suitable for clamping square main boards of different sizes inside the placement slot.

[0020] 5. A protective structure is provided, and the foam pad contacts the lower surface of the square mainboard, which can prevent the electronic components or circuits on the lower surface of the square mainboard from contacting the bottom surface of the placement slot and being damaged, and can also prevent the clamping structure 1 and the clamping structure 2 from being too tightly clamped and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a main structure diagram of a welding tool for an electronic product mainboard according to the present invention;

[0023] Figure 2 It is a schematic diagram of the interior of a placement table of a welding processing tool for an electronic product motherboard according to the present invention;

[0024] Figure 3 A schematic diagram of a clamping structure of a welding tool for an electronic product mainboard according to the present invention;

[0025] Figure 4 This is a schematic diagram of the cooperation between a sliding bar and a clamping block of a welding tool for an electronic product motherboard according to the present invention;

[0026] Figure 5 It is a schematic diagram of a pop-up structure of a welding tool for a motherboard of an electronic product according to the present invention;

[0027] Figure 6 It is a schematic diagram of a state in which a contact head of a welding tool for a mainboard of an electronic product of the present invention is raised;

[0028] Figure 7 This is a second schematic diagram of a clamping structure of a welding tool for an electronic product motherboard according to the present invention;

[0029] Figure 8 This is a schematic diagram of a protective structure of a welding tool for an electronic product motherboard according to the present invention;

[0030] Fig. 9 The present invention is a schematic diagram of fixing a middle pin and a middle plate of a welding tool for a mainboard of an electronic product.

[0031] In the figure: 1. placement table; 2. placement slot; 3. square main board; 4. clamping structure one; 5. clamping structure two; 6. pop-up structure; 7. protection structure; 41. wedge-shaped slot; 42. wedge-shaped block; 43. rotating pin; 44. contact pin; 45. clamping block; 46. telescopic spring one; 47. fixed plate one; 48. sliding slot; 49. sliding bar; 410. reserved opening; 411. limit pin; 51. reserved slot one; 52. guide rod; 53. lifting block; 54. reserved hole; 55. telescopic spring two; 56. contact inclined surface; 61. reserved slot two; 62. swing bar; 63. connecting pin; 64. contact head one; 65. connecting head two; 66. fixed plate two; 67. telescopic spring three; 71. middle plate; 72. foam pad; 73. connecting hole; 74. middle pin. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Embodiment 1:

[0034] See also Figure 1-Figure 3As shown, a welding tool for electronic product motherboards includes a placement table 1, a placement slot 2, and a square motherboard 3. The placement slot 2 is opened on the surface of the placement table 1, and the square motherboard 3 is arranged inside the placement slot 2. The square motherboard 3 can be placed inside the placement slot 2, so that the square motherboard 3 can be initially fixed inside the placement table 1. When the electronic components inside the placement slot 2 are welded, the square motherboard 3 is ensured to be fixed. Four clamping structures 4 are arranged on the two inner walls of the placement table 1. The square motherboard 3 is located between the four clamping structures 4. The square motherboard 3 is fixed by the four clamping structures 4. The plate 3 is clamped so that the square main board 3 is fixed between the four clamping structures 14. The clamping structure 14 includes a wedge-shaped groove 41. The wedge-shaped groove 41 is opened on the inner wall of the placement table 1. A wedge block 42 is arranged inside the wedge-shaped groove 41. Both sides of the bottom end of the wedge block 42 are provided with wedge-shaped surfaces. Both sides of the wedge block 42 are slidably connected with both sides of the wedge groove 41. The wedge block 42 slides inside the wedge groove 41 so that the four wedge blocks 42 are close to the middle of the square main board 3 or away from the square main board 3, so that the wedge block 42 fixes the square main board 3 inside the placement groove 2. The top of the inner part of 41 is rotatably connected with a rotating pin 43, and the bottom of the rotating pin 43 is welded with a clamping block 45. The rotating diameter of the clamping block 45 is larger than the distance between the top of the wedge block 42 and the sliding bar 49. A contact pin 44 is welded at the edge of one end of the clamping block 45. The clamping block 45 rotates around the rotating pin 43, so that the clamping block 45 presses against the wedge block 42 so that the wedge block 42 is exposed from the wedge groove 41, thereby clamping the edge of the square main board 3 on the surface of the placement groove 2. A fixing plate 47 is welded at the top of the inner part of the wedge groove 41, and a fixing plate 47 and the clamping block 45 are provided between the fixing plate 47 and the clamping block 45. A limit pin 411 is connected, and a sliding groove 48 is provided on the top edge of the placement table 1. A sliding bar 49 is slidably connected inside the sliding groove 48. A reserved opening 410 is provided on the side wall of the sliding bar 49 and at each contact pin 44. The contact pin 44 is slidably connected to the side wall of the sliding bar 49 and the side wall of the reserved opening 410. The sliding bar 49 slides along the inside of the sliding groove 48. At this time, the reserved opening 410 of the sliding bar 49 contacts the contact pin 44. The movable reserved opening 410 can press the clamping block 45 against the wedge block 42, thereby making the clamping block 45 more securely engaged with the wedge block 42.

[0035] See also Figure 3-Figure 4 As shown, fixed grooves are provided on the side walls of the wedge-shaped groove 41 and at both ends of the sliding groove 48, and the wedge block 42 is slidably connected to the fixed groove, the two wedge blocks 42 on opposite sides are relatively close to or away from each other, the contact pin 44 contacts one end of the reserved opening 410, thereby clamping the clamping block 45, and the middle of the reserved opening 410 contacts the contact pin 44, so that the clamping block 45 can rotate freely, and the clamping block 45 and the wedge block 42 can be in a loosely connected state, not only the clamping block 45 is pressed against the wedge block 42 to prevent loosening, but the staff can also easily take the square mainboard 3 out of the placement slot 2.

[0036] In this embodiment, the end of the clamping block 45 is engaged with the top of the wedge block 42, and the contact pin 44 is engaged with the side wall of the reserved opening 410. The direction in which the clamping block 45 clamps the wedge block 42 is the same as the direction in which the telescopic spring 46 presses against the clamping block 45. The clamping block 45 can rotate freely while the telescopic spring 46 presses against the clamping block 45 to rotate, and the wedge block 42 can also be pushed toward the middle. The wedge block 42 is in a loosely connected state, and not only can the wedge block 42 be engaged with the square main board 3, but the square main board 3 can also be taken out of the placement slot 2. The square main board 3 is firmly clamped inside the placement slot 2, which makes it more convenient to weld the electronic components on the square main board 3.

[0037] See also Figure 2 and Figure 5 As shown, a pop-up structure 6 is provided inside the placement table 1 and below each wedge-shaped block 42. The pop-up structure 6 includes a reserved groove 2 61, which is opened below the wedge-shaped groove 41. A swing bar 62 is provided inside the reserved groove 2 61. Both sides of the swing bar 62 have integrally manufactured connecting pins 63. The connecting pin 63 of the swing bar 62 is rotatably connected to the inner wall of the reserved groove 2 61. The connecting pin 63 of the swing bar 62 rotates inside the reserved groove 2 61. When the swing bar 62 swings, the contact head 1 64 can be raised or lowered. Contact head 1 64 and connecting head 2 65 are respectively integrally provided at both ends of the swing bar 62. Contact head 1 64 is located below the square main board 3. Connecting head 2 65 is slidably connected to the wedge surface of the wedge block 42. The wedge block 42 moves inside the wedge groove 41 so that the wedge The wedge surface of block 42 contacts with the clamping block 45, so that the end of the swing bar 62 rises or falls, and a fixed plate 2 66 is welded inside the reserved groove 2 61, and a telescopic spring 3 67 is connected above the fixed plate 2 66. The two ends of the telescopic spring 3 67 are respectively connected to the swing bar 62 and the fixed plate 2 66, and the two contact heads 1 64 on the opposite surfaces are symmetrically arranged, and the four contact heads 1 64 swing synchronously. The wedge block 42 slides along the inside of the wedge groove 41 to fix the square main board 3. At the same time, under the action of the telescopic spring 3 67, the contact head 1 64 at one end of the swing bar 62 is lifted, and the square main board 3 rises and pushes the side wedge block 42 to move, and the connecting head 2 65 is slidably connected to the wedge surface of the wedge block 42, and the connecting head 2 65 at the other end of the swing bar 62 is lowered, so that the swing bar 62 swings.

[0038] See also Figure 6As shown, the end of the second connector 65 contacts the bottom end of the wedge block 42, and the protruding height of the contact head 1 64 is greater than the thickness of the square main board 3. Under the action of the telescopic spring 3 67, the contact head 1 64 at one end of the swing bar 62 is lifted up, and the square main board 3 rises and pushes the side wedge block 42 to move. The connector 2 65 is slidably connected to the wedge surface of the wedge block 42, and the connector 2 65 at the other end of the swing bar 62 is lowered, which makes it easier to lift the square main board 3 from the placement slot 2, avoiding the square main board 3 from being easily fitted with the placement slot 2 and making it difficult to take the square main board 3 out of the placement slot 2. It is more convenient to take the square main board 3 in the placement slot 2.

[0039] See also Figure 5 As shown, the end of the second connector 65 contacts the top surface of the wedge-shaped surface of the wedge block 42, and the telescopic spring three 67 pushes the contact head one 64 in a direction opposite to the rotation direction of the swing bar 62, so that the end of the contact head one 64 is located inside the reserved groove two 61, and the square main board 3 is placed inside the placement groove 2. The wedge block 42 can press the square main board 3 along the inside of the wedge groove 41, and contact the square main board 3 through the wedge surface of the wedge block 42, and use the square main board 3 to overcome the force of the telescopic spring three 67 to push the contact head one 64 and press the contact head one 64 down, and the connector two 65 slides from the bottom end of the wedge block 42 to the top of the wedge surface, so that the wedge block 42 can be clamped to prevent the wedge block 42 from loosening.

[0040] See also Figure 2 and Figure 7 As shown, clamping structures 2 5 are provided at both ends of the placement groove 2, and the clamping structure 2 5 includes two reserved grooves 1 51, and a guide rod 52 is inserted into the reserved groove 1 51. A lifting block 53 is slidably connected to the inside of the guide rod 52, and the lifting block 53 can be slid along the lifting block 53. A contact slope 56 is provided on the top of the lifting block 53, and the edge of the square main board 3 contacts the contact slope 56, so that the lifting block 53 contacts the square main board 3. A reserved hole 54 is provided on the side wall of the lifting block 53, and a telescopic spring 2 55 is provided in the middle of the guide rod 52 and located inside the reserved hole 54. Under the action of the telescopic spring 2 55, the square main board 3 is lifted upward so that the square main board 3 is clamped between the clamping structure 2 5 and the clamping structure 1 4.

[0041] See also Figure 8 As shown, the two contact slopes 56 are close to or away from each other, the two contact slopes 56 and the four wedge blocks 42 are respectively located at the lower surface edge and the upper surface edge of the square main board 3, the lifting blocks 53 close to each other can lift the square main board 3 upward, and the four wedge blocks 42 can press the square main board 3 downward, so that the square main board 3 is clamped between the wedge blocks 42 and the lifting blocks 53, and the main board will not loosen or move when welding.

[0042] See also Figure 2 , Figure 8 and Fig. 9 As shown, a protective structure 7 is provided in the middle of the placement slot 2 and between the two lifting blocks 53. The protective structure 7 includes an intermediate plate 71. The intermediate plate 71 is located between the two lifting blocks 53. The two lifting blocks 53 are close to each other to lift the intermediate plate 71. A foam pad 72 is pasted on the surface of the intermediate plate 71. The foam pad 72 is in contact with the lower surface of the square main board 3. A connecting hole 73 is screwed in the middle of the intermediate plate 71. An intermediate pin 74 is provided in the middle of the placement slot 2. The end of the connecting hole 73 is slidably connected to the middle of the intermediate pin 74 of the placement table 1. When the intermediate plate 71 is lifted, the foam pad 72 is driven to always contact with the square main board 3. The end of the contact head 64 is slidably connected to the inside of the placement table 1 to prevent the electronic components or circuits on the lower surface of the square main board 3 from contacting with the bottom surface of the placement slot 2 and being damaged. It can also prevent the clamping structure 1 4 and the clamping structure 2 5 from being damaged by being clamped too tightly.

[0043] When the present invention is in use, when the electronic product motherboard to be welded is required to be placed on the inside of the placement table 1, the square motherboard 3 is placed so that the square motherboard 3 is firmly fixed in the placement groove 2. When the square motherboard 3 in the placement groove 2 needs to be clamped, the sliding bar 49 is moved along the inside of the reserved opening 410 so that the sliding bar 49 is moved to a suitable position. The contact pin 44 is pressed against the reserved opening 410 of the sliding bar 49. The square motherboard 3 can be clamped at the position where the wedge block 42 is exposed from the wedge groove 41. The square motherboard 3 is clamped in the placement groove 2 by the wedge surfaces of the four wedge blocks 42. Then the sliding bar 49 is moved in the opposite direction so that the reserved opening 410 is moved in the opposite direction. The contact pin 44 is located in the middle position of the reserved opening 410. At this time, the clamping block 45 can rotate freely. The rotation diameter of the clamping block 45 is larger than the rotation diameter of the top of the wedge block 42 and the sliding bar 49. The clamping block 45 is limited by the limit pin 411. At this time, the telescopic spring 46 rotates against the clamping block 45 to ensure that the wedge block 42 can be pressed against the edge of the square main board 3 after the clamping block 45 is released. The staff can also easily take out the square main board 3 between the wedge blocks 42, or move the sliding bar 49 in the opposite direction along the inside of the sliding groove 48. The clamping block 45 can be inside the reserved opening 410 of the sliding bar 49, so that the position of the clamping block 45 can be controlled at different positions of the sliding bar 49. The sliding bar 49 is located at one end of the reserved opening 410, so that the clamping block 45 can be clamped at the wedge block 42. The sliding bar 49 is located in the middle of the reserved opening 410, so that the clamping block 45 can be located in the reserved opening 410 and rotated, and can be limited by the limit pin 411 to prevent the clamping block 45 from rotating beyond the range.

[0044] After the electronic product motherboard is welded, the square motherboard 3 needs to be taken out from the placement groove 2. At this time, the square motherboard 3 can be popped out by the pop-up structure 6. Specifically, after the sliding bar 49 is moved so that the clamping block 45 can rotate freely, the contact head 1 64 is lifted up under the action of the telescopic spring 3 67. The contact head 1 64 can lift the square motherboard 3 from the inside of the placement groove 2, and the edge of the square motherboard 3 is used to push the wedge block 42, so that the wedge block 42 moves along the inside of the wedge groove 41, so that the bottom end of the wedge block 42 presses down the connector 2 65, so that the swing bar 62 can be within a certain range. The square main board 3 is swung inward, and then each contact head 1 64 is used to lift the square main board 3. On the contrary, the square main board 3 needs to be placed inside the placement groove 2, and the sliding bar 49 is moved to make the wedge block 42 move toward the middle. The wedge block 42 can clamp the square main board 3, and the wedge block 42 is pressed down by the bottom of the square main board 3, and the square main board 3 is used to overcome the force of the telescopic spring 3 67 to push the contact head 1 64 to press the contact head 1 64 down, and the connecting head 2 65 at the other end of the swing bar 62 is lifted, and the connecting head 2 65 and the swing bar 62 can be used to limit the wedge block 42 to prevent the wedge block 42 from loosening;

[0045] When the square main board 3 can be pressed downward by the four wedge-shaped blocks 42 of the clamping structure 1 4, the clamping structure 2 5 can be used to clamp the square main board 3. Specifically, under the action of the telescopic spring 2 55, the telescopic spring 2 55 pushes the lifting block 53 to move along the guide rod 52, and the contact inclined surfaces 56 on the top surfaces of the two lifting blocks 53 contact the square main board 3, so that the square main board 3 can be lifted upward, so that the square main board 3 is clamped between the two contact inclined surfaces 56 and the four wedge-shaped blocks 42, and the spacing of the lifting blocks 53 is adjusted according to the size of the square main board 3, so that the clamping structure 1 4 and the clamping structure 2 5 are adapted to achieve a secure clamping of the square main board 3;

[0046] Under the action of the telescopic spring 2 55, the two lifting blocks 53 are moved toward the middle, and the two lifting blocks 53 can also lift the middle plate 71. The middle pin 74 rises and falls synchronously with the middle plate 71, so that the foam pad 72 contacts the lower surface of the square main board 3. The foam pad 72 can prevent the lower surface of the square main board 3 from being damaged, and prevent the wedge block 42 and the lifting block 53 from being clamped too tightly, causing damage to the square main board 3.

[0047] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A welding tool for electronic product motherboards, comprising a placement table (1), a placement slot (2) and a square motherboard (3), wherein the placement slot (2) is provided on the surface of the placement table (1), and the square motherboard (3) is arranged inside the placement slot (2); characterized in that: Four clamping structures (4) are arranged on the two inner walls of the placing platform (1), the square main board (3) is located between the four clamping structures (4), the clamping structure (4) comprises a wedge-shaped groove (41), the wedge-shaped groove (41) is opened on the inner wall of the placing platform (1), a wedge-shaped block (42) is arranged inside the wedge-shaped groove (41), both sides of the bottom end of the wedge-shaped block (42) are provided with wedge-shaped surfaces, both sides of the wedge-shaped block (42) are slidably connected to both sides of the wedge-shaped groove (41), the top end of the wedge-shaped groove (41) is rotatably connected to a rotating pin (43), the bottom end of the rotating pin (43) is welded with a clamping block (45), and the rotating diameter of the clamping block (45) is large. A contact pin (44) is welded to the edge of one end of the clamping block (45) at a distance between the top of the wedge block (42) and the sliding bar (49), a fixing plate (47) is welded to the top of the inner top of the wedge groove (41), a limit pin (411) is connected between the fixing plate (47) and the clamping block (45), a sliding groove (48) is provided at the top edge of the placement table (1), a sliding bar (49) is slidably connected inside the sliding groove (48), a reserved opening (410) is provided on the side wall of the sliding bar (49) and at each contact pin (44), and the contact pin (44) is slidably connected to the side wall of the sliding bar (49) and the side wall of the reserved opening (410); A pop-up structure (6) is provided inside the placement table (1) and below each wedge-shaped block (42). The pop-up structure (6) comprises a second reserved groove (61). The second reserved groove (61) is opened below the wedge-shaped groove (41). A swing bar (62) is provided inside the second reserved groove (61). Both sides of the swing bar (62) have integrally manufactured connecting pins (63). The connecting pins (63) of the swing bar (62) are rotatably connected to the inner wall of the second reserved groove (61). Contact pins (63) are integrally provided at both ends of the swing bar (62). The first contact head (64) and the second connection head (65) are provided, the first contact head (64) is located below the square main board (3), the second connection head (65) is slidably connected to the wedge surface of the wedge block (42), the second fixed plate (66) is welded inside the second reserved groove (61), the top of the second fixed plate (66) is connected to the third telescopic spring (67), the two ends of the third telescopic spring (67) are respectively connected to the swing bar (62) and the second fixed plate (66), the two contact heads (64) on the opposite sides are symmetrically arranged, and the four contact heads (64) swing synchronously.

2. The welding tool for electronic product motherboard according to claim 1, characterized in that: Fixed grooves are provided on the side walls of the wedge-shaped groove (41) and at both ends of the sliding groove (48), and the wedge-shaped blocks (42) are slidably connected to the fixed grooves, and the two wedge-shaped blocks (42) on opposite sides are relatively close to or far away from each other.

3. The welding tool for electronic product motherboard according to claim 2, characterized in that: The end of the clamping block (45) is engaged with the top end of the wedge block (42), the contact pin (44) is engaged with the side wall of the reserved opening (410), and the direction in which the clamping block (45) clamps the wedge block (42) is rotated is the same as the direction in which the telescopic spring 1 (46) presses against the clamping block (45).

4. The welding tool for electronic product motherboard according to claim 3, characterized in that: The end of the second connecting head (65) contacts the bottom end of the wedge-shaped block (42), and the protruding height of the first contact head (64) is greater than the thickness of the square main board (3).

5. The welding tool for electronic product motherboard according to claim 3, characterized in that: The end of the second connecting head (65) contacts the top surface of the wedge-shaped surface of the wedge-shaped block (42), and the direction in which the telescopic spring (67) pushes the first contact head (64) is opposite to the rotation direction of the swing bar (62), and the end of the first contact head (64) is located inside the second reserved groove (61).

6. A welding tool for electronic product motherboard according to any one of claims 3, 4 and 5, characterized in that: A second clamping structure (5) is provided at both ends of the placement groove (2), and the second clamping structure (5) comprises two reserved grooves (51), a guide rod (52) is inserted into the reserved groove (51), a lifting block (53) is slidably connected to the inside of the guide rod (52), a contact inclined surface (56) is provided at the top of the lifting block (53), the edge of the square main board (3) contacts the contact inclined surface (56), a side wall of the lifting block (53) is provided with a reserved hole (54), and a second telescopic spring (55) is sleeved in the middle of the guide rod (52) and located inside the reserved hole (54).

7. The welding tool for electronic product motherboard according to claim 6, characterized in that: The two contact inclined surfaces (56) are close to or away from each other, and the two contact inclined surfaces (56) and the four wedge-shaped blocks (42) are respectively located at the lower surface edge and the upper surface edge of the square main board (3).

8. The welding tool for electronic product motherboard according to claim 7, characterized in that: A protective structure (7) is provided in the middle of the placement slot (2) and between the two lifting blocks (53). The protective structure (7) comprises an intermediate plate (71). The intermediate plate (71) is located between the two lifting blocks (53). A foam pad (72) is adhered to the surface of the intermediate plate (71). The foam pad (72) contacts the lower surface of the square main plate (3). A connecting hole (73) is screwed in the middle of the intermediate plate (71). An intermediate pin (74) is provided in the middle of the placement slot (2). The end of the connecting hole (73) is slidably connected to the middle of the intermediate pin (74) of the placement platform (1).

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