Furniture corner hardware welding machining device

Abstract

The invention relates to the technical field of welding devices, in particular to a furniture corner hardware welding machining device. Comprising a base; the guide frames are symmetrically connected to the top of the base; the movable seat is slidably connected to the inner side of the guide frame; the driving motor is mounted on the side surface of the moving seat; the rotating cylinder is rotationally connected to the moving seat, and a rotating shaft of the rotating cylinder is connected with an output shaft of the driving motor; the sliding plate is slidably connected to the inner side of the rotating cylinder; two ends of the connecting spring are respectively connected with the sliding plate and the rotating cylinder. Through cooperation of the sliding plates, the clamping plates and the sliding rails, automatic stepless adjustment and self-stage centering clamping of square pipes with different section sizes can be achieved, specifically, when the movable seat drives the sliding plates and the sliding rails on the left side and the right side to move in the opposite directions, the sliding plates stop moving after making contact with the ends of the transverse square pipes, the sliding rails continuously move and extrude short rods, and the clamping plates are clamped in the short rods; the clamping plates are forced to synchronously contract in the radial direction of the sliding plate, and therefore square pipes of different specifications are clamped in a self-adaptive mode.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding devices, in particular to a furniture corner hardware welding processing device. BACKGROUND

[0002] In the field of furniture manufacturing, especially in the production process of metal frame type furniture, the welding quality of the corner connecting structure directly relates to the stability, load bearing capacity and appearance consistency of the overall structure. For example, patent publication No. CN113334011B discloses a device for welding processing of furniture corner hardware, which inserts a positioning block into the inner wall of the square tube, cooperates with an elastic element to realize the positioning of horizontal and vertical square tubes, thereby preventing the two from being skewed or misaligned during welding, and improving the welding precision.

[0003] However, in actual production application, the above-mentioned patent still has significant deficiencies: first, due to the diversity of furniture product types and the large difference in the cross-sectional size of square tubes used, the above-mentioned patent usually needs to replace the matching positioning block according to the specific tube size. This kind of way relying on discrete special positioning blocks not only increases the type and inventory management cost of tooling, but also prolongs the production line changeover and debugging time, which restricts the production efficiency. Secondly, the current mainstream positioning mechanism generally lacks stepless adjustment or self-centering function, making it difficult to adapt to the high-precision clamping needs of different specifications of square tubes without replacing parts, thereby affecting the consistency of weld quality and structural strength. In addition, when multiple welding is required on different sides or different positions of the same square tube, the operator usually needs to unload the workpiece from the clamp, manually rotate or reposition it, and then clamp it again, which is a tedious process and will reduce the overall processing efficiency. SUMMARY

[0004] Therefore, the present application provides a furniture corner hardware welding processing device, which can overcome the shortcomings of the prior art, such as poor adaptability, frequent replacement of positioning blocks, lack of stepless adjustment and self-centering function, low clamping precision, and tedious operation during multi-surface welding.

[0005] The technical scheme of the present application is as follows: a furniture corner hardware welding processing device, comprising: a base; a guide frame symmetrically connected to the top of the base; a moving seat slidingly connected to the inner side of the guide frame; a drive motor installed on the side of the moving seat; a rotating cylinder rotatingly connected to the moving seat, and the rotating shaft of the rotating cylinder is connected with the output shaft of the drive motor; a sliding plate slidingly connected to the inner side of the rotating cylinder; a connecting spring having two ends respectively connected to the sliding plate and the rotating cylinder; a clamping plate symmetrically slidingly connected to the sliding plate; a short rod connected to the clamping plate; a sliding rail symmetrically connected to the inner side of the rotating cylinder, and the short rod slides in the sliding rail; a moving assembly provided on the base for driving the moving seat to move; and a feeding assembly provided on the base for feeding the square tube.

[0006] In one of the embodiments, the moving assembly comprises: a mounting seat symmetrically mounted on the top of the base; a first screw rod motor mounted on the mounting seat; a connecting frame connected to the moving seat, and the connecting frame is threadedly connected with the screw rod of the first screw rod motor.

[0007] In one of the embodiments, the feeding assembly comprises: a mounting frame connected to the top of the base; a storage frame connected to the mounting frame; a lifting frame slidingly connected to the mounting frame, and the lifting frame is slidingly connected with the storage frame; a second screw rod motor mounted on the mounting frame, and the screw rod of the second screw rod motor is threadedly connected with the lifting frame; a clamping block symmetrically slidingly connected to the lifting frame; a first spring having two ends respectively connected to the clamping block and the lifting frame; a clamping mechanism arranged on the lifting frame and used for driving the clamping block to move to clamp the square tube; and a blocking mechanism arranged on the storage frame and used for blocking the square tube in the storage frame.

[0008] In one of the embodiments, the top of the clamping block is provided with an inclined surface, and the inclined surface of the top of the clamping block is in contact with the bottom of the lifting frame.

[0009] In one of the embodiments, the clamping mechanism comprises: an electric push rod mounted on the side surface of the lifting frame; and a lifting frame slidingly connected to the lifting frame, and the telescopic rod of the electric push rod is connected with the lifting frame.

[0010] In one of the embodiments, the blocking mechanism comprises: a rotating blocking rod symmetrically rotatingly connected to the two sides of the storage frame; a second spring having two ends respectively connected to the rotating blocking rod and the storage frame; and a friction rod connected with the upper end of the rotating blocking rod, and the friction rod penetrates through the side surface of the storage frame.

[0011] In one of the embodiments, the lower end of the rotating blocking rod is also provided with an inclined surface.

[0012] In one of the embodiments, the device further comprises: a supporting plate connected to the side surface of one of the sliding plates.

[0013] Beneficial effects are: 1. Through the cooperation of the sliding plate, the clamping plate and the sliding rail, automatic stepless adjustment and self-step center clamping of square tubes with different cross-sectional sizes can be realized. Specifically, when the moving seat drives the left and right sliding plates and the sliding rails to move towards each other, the sliding plate stops moving after contacting the end of the transverse square tube, the sliding rail continuously moves and presses the short rod, forcing the clamping plate to shrink radially along the sliding plate, thereby adaptively clamping square tubes of different specifications. This structure does not need to replace the positioning block, can significantly improve the adaptability of the device to workpieces of different sizes, and reduce tooling management cost and changeover time.

[0014] 2、The application can realize the rapid adjustment of multi-station welding of horizontal square tubes by driving the motor to rotate the rotating cylinder and the clamping plate, and cooperating with the first screw motor to drive the moving seat to move horizontally, specifically, after the welding is completed, the driving motor can drive the rotating cylinder and the clamped square tube to rotate to a specific angle, and at the same time, the first screw motor drives the moving seat and the square tube to move horizontally through the connecting frame, so that the workpiece is accurately aligned with the welding station on different sides or positions. The structure can avoid repeated disassembly and manual adjustment of the workpiece, ensure the welding position accuracy, and significantly improve the automation degree and processing consistency of multi-surface welding.

[0015] 3、The application can realize automatic continuous feeding and temporary positioning of vertical square tubes through the action of the feeding assembly, specifically, when the lifting frame drives the clamping block to clamp the lowermost vertical square tube to move down, the vertical square tube presses the lower end of the rotating stop rod to rotate, and then clamps the upper vertical square tube through the friction rod, after the vertical square tube is completely separated, the second spring drives the rotating stop rod to reset, and continues to block the remaining square tube, this process can realize the one-by-one sorting and positioning of the vertical square tubes in the storage frame, avoid manual secondary clamping, and improve the continuity and efficiency of multi-pass welding operation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic diagram of the application.

[0017] Figure 2 It is a sectional view of the rotating cylinder of the application.

[0018] Figure 3 It is a specific structure schematic diagram of the clamping plate and the short rod of the application.

[0019] Figure 4 It is an installation schematic diagram of the moving assembly of the application.

[0020] Figure 5 It is a three-dimensional structure schematic diagram of the feeding assembly of the application.

[0021] Figure 6 It is a separation structure schematic diagram of the mounting frame and the lifting frame of the application.

[0022] Figure 7 It is a sectional view of the lifting frame of the application.

[0023] Figure 8 It is a sectional view of the storage frame of the application.

[0024] In the attached diagram, the following are the reference numerals: 1-base, 2-guide frame, 3-moving seat, 4-drive motor, 5-rotating cylinder, 6-sliding plate, 7-connecting spring, 8-clamping plate, 9-short rod, 10-slide rail, 11-mounting seat, 12-first lead screw motor, 13-connecting frame, 14-mounting frame, 15-storage box, 16-lifting frame, 17-second lead screw motor, 18-clamping block, 19-first spring, 20-electric push rod, 21-lifting frame, 22-rotating stop bar, 23-second spring, 24-friction rod, 25-support plate. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] Example: A welding processing device for furniture corner hardware, such as... Figures 1-8 As shown, the assembly includes a base 1, guide frames 2, movable seats 3, drive motors 4, rotating cylinders 5, sliding plates 6, connecting springs 7, clamping plates 8, short rods 9, slide rails 10, a moving assembly, and a feeding assembly. The base 1 has a through hole in the center of its top to allow the clamped horizontal square tube to rotate without obstruction. Guide frames 2 are symmetrically connected to the top of the base 1 on both sides. Movable seats 3 are slidably connected to the inner sides of both guide frames 2. Drive motors 4 are installed on opposite sides of the two movable seats 3. Rotating cylinders 5 are rotatably connected to opposite sides of the two movable seats 3. The rotating cylinders 5 rotate... The rotating shaft is connected to the output shaft of the drive motor 4. Sliding plates 6 are slidably connected to the inner sides of the two rotating cylinders 5. A connecting spring 7 is connected between the sliding plates 6 and the rotating cylinders 5. Four clamping plates 8 are symmetrically slidably connected to the two sliding plates 6. Short rods 9 are connected to the opposite sides of the clamping plates 8 on the left and right sides. Slide rails 10 are symmetrically connected to the inner sides of the two rotating cylinders 5. The slide rails 10 are inclined and the short rods 9 slide within the slide rails 10. The base 1 is provided with a moving component for driving the moving seat 3 to move. The base 1 is also provided with a feeding component for feeding the square tube.

[0027] like Figure 4 As shown, the moving assembly includes a mounting base 11, a first lead screw motor 12, and a connecting frame 13. The mounting base 1 is symmetrically connected to the top rear side of the base 1. The first lead screw motor 12 is mounted on both mounting bases 11. The connecting frame 13 is connected to the rear side of both moving bases 3. The two connecting frames 13 are respectively threaded to the lead screws of the two first lead screw motors 12.

[0028] like Figures 5-8As shown, the feeding assembly comprises a mounting frame 14, a storage frame 15, a lifting frame 16, a second lead screw motor 17, a clamping block 18, a first spring 19, a clamping mechanism and a material blocking mechanism, the top rear side of the base 1 is connected with the mounting frame 14, the upper front side of the mounting frame 14 is connected with the storage frame 15, the mounting frame 14 is slidably connected with the lifting frame 16, and the lifting frame 16 is slidably connected with the storage frame 15, the mounting frame 14 is further provided with the second lead screw motor 17, and the lead screw of the second lead screw motor 17 is threadedly connected with the lifting frame 16, the front lower side of the lifting frame 16 is symmetrically slidably connected with four clamping blocks 18, the top of each clamping block 18 is provided with an inclined surface, the first spring 19 is connected between the clamping block 18 and the lifting frame 16, the lifting frame 16 is provided with the clamping mechanism for driving the clamping block 18 to move and clamp the pipe, and the storage frame 15 is provided with the material blocking mechanism for blocking the pipe; the clamping mechanism comprises an electric push rod 20 and a lifting frame 21, the front side of the lifting frame 16 is provided with the electric push rod 20, the front of the lifting frame 16 is slidably connected with the lifting frame 21, the telescopic rod of the electric push rod 20 is connected with the lifting frame 21, and the inclined surface of the top of the clamping block 18 is in contact with the bottom of the lifting frame 21; the material blocking mechanism comprises a rotating blocking rod 22, a second spring 23 and a friction rod 24, the lower part of the left and right sides of the storage frame 15 is rotatably connected with the rotating blocking rod 22, the lower end of the two rotating blocking rods 22 is also provided with an inclined surface, the second spring 23 is connected between the upper end of the rotating blocking rod 22 and the storage frame 15, the upper end of the two rotating blocking rods 22 is connected with the friction rod 24, and the two friction rods 24 respectively penetrate through the left and right sides of the storage frame 15.

[0029] When the device needs to be used, first, a plurality of vertical square tubes are placed in the storage frame 15 in sequence, the lowermost vertical square tube in the storage frame 15 will fall on the lower end of the rotating stop rod 22, then a horizontal square tube is placed between the two sliding plates 6, then the first lead screw motor 12 drives the left and right connecting frames 13 to move towards each other, the connecting frames 13 drive the left and right moving seats 3, rotating cylinders 5, sliding plates 6, clamping plates 8, short rods 9 and sliding rails 10 to move towards each other, the guide frame 2 plays a guiding and supporting role, when the left and right sliding plates 6 contact the end of the horizontal square tube, the sliding plates 6, clamping plates 8 and short rods 9 stop moving, the left and right rotating cylinders 5 and sliding rails 10 continue to move towards each other, the connecting springs 7 are compressed, at this time the sliding rails 10 will squeeze the short rods 9 and clamping plates 8 to move inward, so that the clamping plates 8 can clamp and fix the horizontal square tube; then the electric push rod 20 drives the lifting frame 21 to move downward, the lifting frame 21 will squeeze the clamping block 18 to move inward, the first spring 19 is compressed, so that the clamping block 18 clamps the lowermost vertical square tube in the storage frame 15, then the second lead screw motor 17 drives the lifting frame 16 to move downward, the lifting frame 16 can drive the lowermost vertical square tube in the storage frame 15 to move downward through the clamping block 18, the lowermost vertical square tube will squeeze the part with a slope at the lower end of the two rotating stop rods 22, forcing the rotating stop rod 22 to rotate around its rotating shaft, at this time, the upper end of the rotating stop rod 22 swings inward, driving the left and right friction rods 24 to move towards each other, the second spring 23 is compressed, and the friction rods 24 will extend into the storage frame 15 and contact the second vertical square tube from bottom to top in the storage frame 15, thereby temporarily fixing the remaining vertical square tubes in the storage frame 15, until the lowermost vertical square tube is separated from the lower end of the rotating stop rod 22, the second spring 23 returns to its original state, driving the rotating stop rod 22 to reverse and reset, so that the upper end of the rotating stop rod 22 moves outward and resets, driving the left and right friction rods 24 to move away from the vertical square tubes in the storage frame 15, at the same time, the lower end of the left and right rotating stop rods 22 moves inward and resets, thereby blocking the remaining vertical square tubes in the storage frame 15 again, and the clamping block 18 will drive the vertical square tube clamped thereby to continue to move downward until the vertical square tube contacts the horizontal square tube, then the vertical square tube and the horizontal square tube can be welded, after welding, the electric push rod 20 drives the lifting frame 21 to move upward, so that the lifting frame 21 is separated from the clamping block 18, the first spring 19 returns to its original state, driving the clamping block 18 to move outward and separate from the vertical square tube, then the second lead screw motor 17 drives the lifting frame 16 and the clamping block 18 to move upward and reset; at this time, the rotating cylinder 5 can drive the sliding plate 6 and the clamping plate 8 to rotate by driving the motor 4, the clamping plate 8 can drive the horizontal square tube to rotate, at the same time, the first lead screw motor 12 can drive the two connecting frames 13 to move left and right synchronously, the connecting frames 13 can drive the horizontal square tube to move left and right through the clamping plate 8, then the above feeding operation is repeated, and welding can be performed again on different sides or different positions of the same square tube.

[0030] As shown in Figure 1 The supporting plate 25 is further included, and the left slide plate 6 is connected with the supporting plate 25 on the right side. Before the transverse square tube is clamped and fixed by the clamping plate 8, the operator can pre-put the transverse square tube on the supporting plate 25, and the supporting plate 25 provides initial support and positioning for the transverse square tube, so that the step that the operator needs to manually hold the transverse square tube until it is clamped can be omitted, which not only can reduce the labor intensity, but also can improve the clamping efficiency.

[0031] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A furniture corner fitting welding processing device, characterized in that, The utility model relates to a square tube automatic feeding device, including: base (1), guide frame (2) are connected to the top of base (1) symmetry, mobile seat (3) are connected to the inboard of guide frame (2) slidingly, drive motor (4) are installed to the side of mobile seat (3), rotating cylinder (5) are connected to mobile seat (3) rotationally, and the rotation axis of rotating cylinder (5) is connected with the output shaft of drive motor (4), sliding plate (6) are connected to the inboard of rotating cylinder (5) slidingly, connecting spring (7) are connected with the both ends of sliding plate (6) and rotating cylinder (5) respectively, clamping plate (8) are connected to sliding plate (6) symmetry slidingly, short pole (9) are connected to clamping plate (8), slide rail (10) are connected to the inboard of rotating cylinder (5) symmetry, and short pole (9) is in slide rail (10) sliding, mobile assembly is set up on base (1) and is used to drive mobile seat (3) to move, feeding assembly is set up on base (1) and is used to feed square tube.

2. The furniture corner fitting welding device according to claim 1, characterized in that, The mobile assembly includes: mounting seat (11) is installed on the top of base (1) symmetry, first screw rod motor (12) is installed on mounting seat (11), connecting frame (13) is connected to mobile seat (3), and connecting frame (13) is screw thread connected with the screw rod of first screw rod motor (12).

3. The furniture corner fitting welding device according to claim 1, characterized in that, The feeding assembly includes: mounting frame (14) is connected to the top of base (1), storage frame (15) is connected to mounting frame (14), lifting frame (16) is slidingly connected to mounting frame (14), and lifting frame (16) is slidingly connected with storage frame (15), second screw rod motor (17) is installed on mounting frame (14), and the screw rod of second screw rod motor (17) is screw thread connected with lifting frame (16), clamping block (18) is connected to lifting frame (16) symmetry slidingly, first spring (19) is connected with the both ends of clamping block (18) and lifting frame (16) respectively, clamping mechanism is set up on lifting frame (16) and is used to drive clamping block (18) to move and clamp square tube, material blocking mechanism is set up on storage frame (15) and is used to block square tube in storage frame (15).

4. The furniture corner fitting welding device according to claim 3, characterized in that, The clamping mechanism includes: electric push rod (20) is installed on the side of lifting frame (16), lifting frame (21) is slidingly connected to lifting frame (16), and the telescopic rod of electric push rod (20) is connected with lifting frame (21).

5. The furniture corner fitting welding device according to claim 4, characterized in that, The top of clamping block (18) is provided with an inclined surface, and the inclined surface of the top of clamping block (18) is connected with the bottom of lifting frame (21).

6. The furniture corner hardware welding device according to claim 3, characterized in that, The material blocking mechanism includes: rotating blocking rod (22) is connected to the both sides of storage frame (15) symmetry, second spring (23) is connected with the both ends of rotating blocking rod (22) and storage frame (15) respectively, friction rod (24) is connected with the upper end of rotating blocking rod (22), and friction rod (24) penetrates the side of storage frame (15).

7. The furniture corner fitting welding device according to claim 6, characterized in that, The lower end of rotating blocking rod (22) is also provided with an inclined surface.

8. The furniture corner hardware welding device according to claim 1, characterized in that, It also includes: supporting plate (25) is connected to the side of one of sliding plate (6).

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