A quick-change adjustable double-gun screw driving device

Abstract

The present invention discloses a fast-changing adjustable double-gun screw-driving device, which relates to the technical field of automobile parts assembly and aims to solve the problems of multiple changes in model, excessive labor intensity and difficult operation. The key points of its technical solution are that it includes a base, a base arranged on the top surface of the base, and an angle adjustment mechanism arranged in the base for adjusting the rotation angle of the screw gun; the angle adjustment mechanism includes a double-gun fixing frame and two screw guns inserted into the double-gun fixing frame, a clearance hole for the screw gun to pass through is provided on the front of the double-gun fixing frame, a central shaft is fixed on the front of the double-gun fixing frame, and the central shaft is rotatably connected to the base, and a central hole for the central shaft to pass through is provided on the base. After the angle of the central shaft is adjusted, the screw gun is aligned with the hole position, the screw gun is started to screw, and after a set of screws is screwed in, the double-gun fixing frame is pulled back, which can quickly change models, facilitate screwing, and reduce labor intensity.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts assembly, in particular to a fast-changing adjustable double-gun screw driving device. Background Art

[0002] During the assembly process of automobile parts, it is often necessary to press-fit and fix the parts so that the independent sub-parts form a whole.

[0003] When screwing a product, workers typically use a single screw gun. When there are too many different types of screws, multiple changes are required, increasing operation time and labor intensity. Furthermore, the more screw guns that need to be changed, the more complex the mechanism becomes, increasing operational difficulty. This requires further improvement. Summary of the Invention

[0004] The purpose of the present invention is to provide a fast-changing adjustable double-gun screw driving device, which has the effects of fast changing, convenient screw driving and reduced labor intensity.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions:

[0006] A quick-change adjustable double-gun screw driving device comprises a base, a base arranged on the top surface of the base, and an angle adjustment mechanism arranged in the base for adjusting the rotation angle of the screw gun;

[0007] The angle adjustment mechanism includes a double-gun fixing frame and two screw guns inserted into the double-gun fixing frame. A clearance hole for the screw guns to pass through is provided on the front of the double-gun fixing frame. A central shaft is fixed on the front of the double-gun fixing frame. The central shaft is rotatably connected to the base. The base is provided with a central hole for the central shaft to pass through.

[0008] The present invention is further configured as follows: a movable plate 2 is provided on the top surface of the base, a buffer component for limiting the swing angle of the screw gun is provided on the top surface of the movable plate 2, and two buffer components are provided in parallel and are respectively located on one side of the base.

[0009] The present invention is further configured as follows: each of the buffer components includes a change-type limit fixing seat arranged on the top surface of the second movable plate, and the top surface of each of the change-type limit fixing seat is provided with a plurality of height-limiting axes with gradually decreasing heights along its length direction.

[0010] The present invention is further configured as follows: a double-gun center distance adjustment mechanism is provided at each clearance hole on the front side of the double-gun fixing frame, and the length of the clearance hole is greater than the outer diameter of the screw gun.

[0011] The present invention is further configured as follows: each of the double-gun center distance adjustment mechanisms includes a limiting pressure block fixed on the front of the double-gun fixing frame, a fixing plate embedded in the limiting pressure block and fixed to one end of the screw gun extending out of the clearance hole, and a side pull block connected to the side of the fixing plate; a baffle is fixed on the side of the double-gun fixing frame, a screw is threadedly connected to the baffle, and the screw passes through one end of the baffle and is rotatably connected to the side pull block.

[0012] The present invention is further configured as follows: a clamping assembly for limiting the rotation of the screw is provided on the screw, the clamping assembly includes two oppositely arranged hoops and a bolt threadedly connected between the two hoops, and the top end of the bolt is connected to an adjustable handle.

[0013] The present invention is further configured as follows: a height adjustment mechanism for adjusting the height of the screw gun is provided on the top surface of the movable plate 2; the height adjustment mechanism includes a lifting cylinder fixed on the top surface of the movable plate 2, the driving end of the lifting cylinder is connected to the bottom surface of the base plate, and a fixing component for fixing the base plate is provided on the top surface of the movable plate 2.

[0014] The present invention is further configured as follows: the fixing assembly includes a height limiting screw connected to the top surface of the second movable plate, the height limiting screw is arranged to pass through the base plate, and one end of the height limiting screw passing through the base plate is threadedly connected to a height limiting nut, and the bottom surface of the height limiting nut is against the top surface of the base plate.

[0015] The present invention is further configured as follows: a linear guide rail 1 is provided on the top surface of the base along the width direction of the base, a movable plate 1 is provided on the top surface of the linear guide rail 1, and a slider 1 is provided on the bottom surface of the movable plate 1 that is engaged with the linear guide rail 1; a left and right distance adjustment mechanism is provided on the top surface of the movable plate 1 for driving the movable plate 2 to move along the length direction of the base.

[0016] The present invention is further configured as follows: the left and right distance adjustment mechanism includes an adjusting cylinder fixed on the top surface of movable plate one, and the driving end of the adjusting cylinder is connected to the bottom surface of movable plate two; a linear guide rail two perpendicular to linear guide rail one is provided on the top surface of movable plate one, and a slider two engaged with linear guide rail two is provided on the bottom surface of movable plate two.

[0017] In summary, the beneficial technical effects of the present invention are:

[0018] 1. Through the setting of the angle adjustment mechanism, the central axis adjusts the angle so that the screw gun is aligned with the hole position. The screw gun is started to screw in a group of screws, which is convenient for screwing and reduces labor intensity.

[0019] 2. Through the setting of the height adjustment mechanism, the staff rotates and loosens the height limit nut, and then starts the lifting cylinder, which lifts the base plate to complete the height adjustment of the screw gun and realizes rapid type change. Finally, the height limit nut is put on the height limit screw, and the height limit nut is rotated until the bottom surface of the height limit nut is against the top surface of the base plate, preventing the base plate from moving in the vertical direction along the height limit screw during the screwing process, further improving the stability of the screwing process;

[0020] 3. Through the setting of the double-gun center distance adjustment mechanism, loosen the adjustable handle to separate the two opposite clamps. Then, rotate the wheels on both sides, the wheels drive the screws to rotate, the screws drive the side pull blocks and the fixed plate to move together, and the fixed plate drives the screw gun to move the appropriate distance in the clearance hole, quickly changing the type. When the fixed plate moves, it always slides along the limit pressure block without offset, further ensuring the stability of the adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0022] Figure 2 It is a structural diagram for showing the left and right distance adjustment mechanism;

[0023] Figure 3 It is a structural diagram for showing the height adjustment mechanism;

[0024] Figure 4 It is a schematic diagram used to show the structure of the dual-gun mounting bracket when it is in an inclined state;

[0025] Figure 5 It is a structural diagram for showing the angle adjustment mechanism;

[0026] Figure 6 It is a structural diagram used to show the double-gun center distance adjustment mechanism.

[0027] In the figure, 1. base; 11. Linear guide rail 1; 12. Movable plate 1; 121. Slider 1; 2. Movable plate 2; 21. Lifting cylinder; 3. Base plate; 31. Base; 311. Center hole; 4. Double-gun fixing bracket; 41. Screw gun; 42. Makeshift hole; 43. Center axis; 431. Bearing seat; 432. Bearing; 44. Limiting pressure block; 441. Slot-type photoelectric; 45. Fixing plate; 46. Side pull block; 47. Baffle; 48. Handle; 5. Type-changing limiting fixing seat; 51. Height limiting shaft; 6. Screw; 61. Rotating wheel; 62. Hoop; 621. Bolt; 622. Adjustable handle; 7. Height limiting screw; 71. Height limiting nut; 8. Adjusting cylinder; 9. Linear guide rail 2; 91. Slider 2. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0029] Reference Figure 1 and Figure 2 The present invention discloses a quick-change, adjustable, double-gun screwdriving device comprising a base 1 and a linear guide rail 11 disposed on the top surface of the base 1 along the width of the base 1. Two linear guide rails 11 are disposed in parallel. A movable plate 12 is fixed to the top surface of the linear guide rail 11. Connected to the bottom surface of the movable plate 12 is a slider 121 that engages with the linear guide rail 11. Four sliders 121 are arranged in a rectangular array. Above the movable plate 12, a movable plate 2 and a base plate 3 are disposed in parallel, with a base 31 being screwed to the top surface of the base plate 3. A left-right distance adjustment mechanism is disposed on the top surface of the movable plate 12 to drive the movable plate 2 to move along the length of the base 1.

[0030] Reference Figure 2 and Figure 3 The left-right distance adjustment mechanism includes an adjustment cylinder 8 fixed to the top surface of movable plate 12. The drive end of the adjustment cylinder 8 is connected to the bottom surface of movable plate 2. To ensure that movable plate 2 always moves along the length of base 1 without deviation, the top surface of movable plate 12 is provided with two linear guide rails 29 perpendicular to linear guide rail 11. Four sliders 291 are arranged in a rectangular array on the bottom surface of movable plate 2, and they engage with linear guide rails 29. Each linear guide rail 29 has two sliders 291 embedded in it.

[0031] Reference Figure 2 and Figure 4 , an adjusting screw gun 41 ( Figure 1(as shown). In this embodiment, the height adjustment mechanism includes a lifting cylinder 21 fixed to the top surface of the movable plate 2, the driving end of the lifting cylinder 21 is connected to the bottom surface of the base plate 3, and a fixing component for fixing the base plate 3 is provided on the top surface of the movable plate 2. Two fixing components are provided in parallel and are respectively located on one side of the base 31. The fixing component includes a height limiting screw 7 connected to the top surface of the movable plate 2, the height limiting screw 7 is provided through the base plate 3, and one end of the height limiting screw 7 that passes through the base plate 3 is threadedly connected to the height limiting nut 71, and the bottom surface of the height limiting nut 71 is against the top surface of the base plate 3. When the product is replaced, the screw hole position of the product becomes higher. The staff rotates to loosen the height limiting nut 71, and then starts the lifting cylinder 21. The lifting cylinder 21 lifts the base plate 3, thereby completing the height adjustment of the screw gun 41. Finally, the height limiting nut 71 is put on the upper height limiting screw 7, and the height limiting nut 71 is rotated until the bottom surface of the height limiting nut 71 is against the top surface of the base plate 3, preventing the base plate 3 from moving in the vertical direction along the height limiting screw 7 during the screwing process, thereby improving the stability during the screwing process.

[0032] Reference Figure 3 and Figure 5 The base 31 is provided with an angle adjustment mechanism for adjusting the rotation angle of the screw gun 41. The angle adjustment mechanism includes a C-shaped dual-gun mounting bracket 4 and two screw guns 41 mounted on the dual-gun mounting bracket 4. A clearance hole 42 for the screw guns 41 to pass through is provided on the front of the dual-gun mounting bracket 4. The clearance hole 42 is longer than the outer diameter of the screw gun 41. A center shaft 43 and a bearing seat 431 are mounted on the front of the dual-gun mounting bracket 4. The bearing seat 431 is mounted with a bearing 432. The base 31 is provided with a center hole 311 for the center shaft 43 to pass through. The center shaft 43 is rotatably connected to the base 31, and the bearing 432 reduces friction during the rotation of the center shaft 43. Before screwing, the rotation angle of the screw driving device can be adjusted by rotating the center shaft 43 within the center hole 311.

[0033] Reference Figure 4 and Figure 5 To reduce the swing amplitude of the screw gun 41 during angle adjustment, a buffer assembly is provided on the top surface of the movable plate 2 to limit the swing angle of the screw gun 41. Two buffer assemblies are provided in parallel and located on one side of the base plate 3. Each buffer assembly includes a shape-changing limit fixing seat 5 fixed to the top surface of the movable plate 2 by screws. The top surface of each shape-changing limit fixing seat 5 is provided with two height-limiting shafts 51 of gradually decreasing height along its length, with the outer height-limiting shaft 51 being lower than the inner height-limiting shaft 51.

[0034] Reference Figure 5 and Figure 6When a product changes, the center distance between the screw holes increases or decreases. Therefore, each clearance hole 42 on the front of the dual-gun holder 4 is equipped with a dual-gun center distance adjustment mechanism. Each dual-gun center distance adjustment mechanism includes a limit pressure block 44 screwed to the front of the dual-gun holder 4, and a fixing plate 45 that is embedded in the limit pressure block 44 and fixed to the end of the screw gun 41 extending from the clearance hole 42. The fixing plate 45 is screwed to the screw gun 41. A side pull block 46 is connected to the side of the fixing plate 45. A baffle 47 is fixed to the side of the dual-gun holder 4. A screw rod 6 is threadedly connected to the baffle 47. The screw rod 6 passes through one end of the baffle 47 and is rotatably connected to the side pull block 46. To facilitate the rotation of the screw rod 6, each screw rod 6 is connected to a rotating wheel 61. The rotating wheel 61 increases the contact area between the operator and the screw rod 6, making operation easier.

[0035] Reference Figure 5 and Figure 6 , two limit pressure blocks 44 of each double-gun center distance adjustment mechanism are arranged in parallel along the height direction of the double-gun fixing frame 4, and the cross-section of the limit pressure blocks 44 is L-shaped. A slot-shaped photoelectric 441 is provided on the limit pressure block 44 located at the bottom. The slot-shaped photoelectric 441 can determine whether the adjustment is in place, thereby improving the accuracy of the adjustment. A clamping assembly is provided on the screw 6 to limit the rotation of the screw 6. The clamping assembly includes two oppositely arranged clamps 62 and a bolt 621 threadedly connected between the two clamps 62. The clamp 62 is semi-circular, and the top of the bolt 621 is connected to an adjustable handle 622. When adjusting the double-gun center distance, loosen the adjustable handle 622 to separate the two opposite clamps 62. Then, rotate the wheels 61 on both sides. The wheels 61 drive the screw 6 to rotate. The screw 6 drives the side pull block 46 to move together with the fixing plate 45. The fixing plate 45 drives the screw gun 41 to move a corresponding distance in the clearance hole 42. When the fixing plate 45 moves, it always slides along the limiting pressing block 44 without deviation, thereby ensuring the stability of the adjustment.

[0036] Reference Figure 1 In order to facilitate pushing the double-gun fixing frame 4 along the linear guide rail 11, handles 48 are connected to the two opposite sides of the double-gun fixing frame 4.

[0037] The working principle of this embodiment is as follows: when the product flows through the assembly line to this workstation, the operator holds the handle 48 and pushes the double-gun fixing frame 4 forward, and the movable plate 12 slides forward along the linear guide rail 11;

[0038] When the left and right distance needs to be adjusted, the adjusting cylinder 8 is started, and the adjusting cylinder 8 drives the movable plate 2 to move to the appropriate distance along the linear guide rail 2 9, which is convenient and quick;

[0039] When the height needs to be adjusted, the staff rotates and loosens the height limiting nut 71, and then starts the lifting cylinder 21, which lifts the base plate 3, thereby completing the height adjustment of the screw gun 41. Finally, the height limiting nut 71 is put on the upper height limiting screw rod 7, and the height limiting nut 71 is rotated until the bottom surface of the height limiting nut 71 abuts against the top surface of the base plate 3, preventing the base plate 3 from moving in the vertical direction along the height limiting screw rod 7 during the screwing process, thereby improving the stability of the screwing process;

[0040] When adjusting the center distance of the two guns, loosen the adjustable handle 622 to separate the two opposing clamps 62. Then, rotate the wheels 61 on both sides. The wheels 61 drive the screw rod 6 to rotate. The screw rod 6 drives the side pull block 46 and the fixed plate 45 to move together. The fixed plate 45 drives the screw gun 41 to move a corresponding distance in the clearance hole 42. When the fixed plate 45 moves, it always slides along the limit pressure block 44 without deviation, ensuring the stability of the adjustment.

[0041] Hold the handle 48 to rotate the double-gun fixing frame 4, adjust the angle by rotating the center shaft 43 in the center hole 311, align the screw gun 41 with the hole position, start the screw gun 41 to screw in, and after a set of screws are screwed in, pull back the handle 48, and the double-gun fixing frame 4 moves backward through the linear guide rail 11, and then repeat the previous action, which can quickly change the shape, facilitate screwing, and reduce labor intensity.

[0042] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention's description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A quick-change adjustable double-gun screw driving device, characterized by: It comprises a base (1), a base (31) arranged on the top surface of the base (1), and an angle adjustment mechanism arranged in the base (31) for adjusting the rotation angle of a screw gun; The angle adjustment mechanism comprises a double-gun fixing frame (4) and two screw guns (41) which are inserted into the double-gun fixing frame (4); a clearance hole (42) for the screw guns (41) to pass through is provided on the front of the double-gun fixing frame (4); a central shaft (43) is fixed on the front of the double-gun fixing frame (4); the central shaft (43) is rotatably connected to the base (31); the base (31) is provided with a central hole (311) for the central shaft (43) to pass through; the top of the base (1) A movable plate 2 (2) is provided on the surface, and a buffer component for limiting the swing angle of the screw gun (41) is provided on the top surface of the movable plate 2 (2), and two buffer components are provided in parallel and are respectively located on one side of the base (31); each of the buffer components includes a change-type limit fixing seat (5) provided on the top surface of the movable plate 2 (2), and a plurality of height-limiting shafts (51) with gradually decreasing heights are provided on the top surface of each of the change-type limit fixing seats (5) along its length direction; the double-gun fixing frame (4 ) is provided with a double-gun center distance adjustment mechanism at each clearance hole (42) on the front side of the double-gun fixing frame (4), and the length of the clearance hole (42) is greater than the outer diameter of the screw gun (41); each of the double-gun center distance adjustment mechanisms includes a limiting pressure block (44) fixed on the front side of the double-gun fixing frame (4), a fixing plate (45) embedded in the limiting pressure block (44) and fixed to one end of the screw gun (41) extending out of the clearance hole (42), and a side pull block (46) connected to the side of the fixing plate (45). A baffle (47) is fixed on the side of the gun fixing frame (4), and a screw (6) is threadedly connected to the baffle (47). One end of the screw (6) passes through the baffle (47) and is rotatably connected to the side pull block (46); a clamping assembly for limiting the rotation of the screw (6) is provided on the screw (6), and the clamping assembly includes two oppositely arranged clamps (62) and a bolt (621) threadedly connected between the two clamps (62). When adjusting the center distance of the two guns, the adjustable handle (622) is loosened.

2. The quick-change adjustable double-gun screw driving device according to claim 1, characterized in that: A height adjustment mechanism for adjusting the height of a screw gun (41) is provided on the top surface of the movable plate 2 (2); the height adjustment mechanism comprises a lifting cylinder (21) fixed on the top surface of the movable plate 2 (2) and a base plate (3) connected to the driving end of the lifting cylinder (21); the base (31) is located on the top surface of the base plate (3); and a fixing component for fixing the base plate (3) is provided on the top surface of the movable plate 2 (2).

3. The quick-change adjustable double-gun screw driving device according to claim 2, characterized in that: The fixing assembly comprises a height-limiting screw (7) connected to the top surface of the second movable plate (2); the height-limiting screw (7) passes through the base plate (3); one end of the height-limiting screw (7) passing through the base plate (3) is threadedly connected to a height-limiting nut (71); the bottom surface of the height-limiting nut (71) abuts against the top surface of the base plate (3).

4. The quick-change adjustable double-gun screw driving device according to claim 1, characterized in that: A linear guide rail (11) is provided on the top surface of the base (1) along the width direction of the base (1); a movable plate (12) is provided on the top surface of the linear guide rail (11); a slider (121) is provided on the bottom surface of the movable plate (12) and is engaged with the linear guide rail (11); and a left-right distance adjustment mechanism for driving the movable plate (2) to move along the length direction of the base (1) is provided on the top surface of the movable plate (12).

5. The quick-change adjustable double-gun screw driving device according to claim 4, characterized in that: The left-right distance adjustment mechanism includes an adjustment cylinder (8) fixed on the top surface of the movable plate (12), and the driving end of the adjustment cylinder (8) is connected to the bottom surface of the movable plate (2); a linear guide rail (9) perpendicular to the linear guide rail (11) is provided on the top surface of the movable plate (12), and a slider (91) engaged with the linear guide rail (9) is provided on the bottom surface of the movable plate (2).

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