A kind of positioning welding equipment for furniture hardware corners

Abstract

The present invention discloses a positioning welding device for furniture hardware corners, including a device base, welding robots are respectively arranged at both ends of the device base, and a square tube positioning mechanism is arranged on the upper surface of the device base. By adopting the telescopic activity of an electric telescopic rod to provide power, the square slot frame 1, the square slot frame 2 and the square slot frame 3 are driven to move synchronously in turn and point to the same direction. The lengths of the four groups of movable rods are consistent, and the moving angles of the sliders are consistent. By utilizing the setting of the square tube anti-shake mechanism, the support plate is controlled to drive the two groups of clamps to achieve the relative movement. The inner flexible clamping unit is clamped with the two sides of the welding square tube and the corner square tube respectively to ensure that the clamped welding square tube and the corner square tube move synchronously in the same direction, so as to achieve the matching assembly of the welding square tube and the two groups of corner square tubes. Through the effect of this automatic positioning, the welding accuracy of the hardware weldments is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of hardware corner processing, and in particular relates to a positioning welding device for furniture hardware corners. Background Art

[0002] Furniture hardware refers to the hardware components of hardware furniture or the metal accessories used on furniture, mainly including slide rails, hinges, sofa legs, lifters, backrest frames, springs, nails, footrests, pull-out baskets, etc. Hardware has functions such as connection, activity, fastening, and decoration, and is also called furniture accessories; according to the actual demand for hardware products, the hardware can be processed into hardware products of various shapes by welding. For the welding and forming of corner pipes, usually a corner pipe and two straight pipes are required. Two welding points will be welded during welding, so the welding pipes need to be aligned before welding and fixed after alignment.

[0003] In the prior art, there is a welding machine for processing hemming and cornering hardware, such as CN207372541U. The forward welding device is used to weld one of the welds formed by the right-angle piece and the baffle; the lateral welding device is used to weld the other weld formed by the right-angle piece and the baffle; the positioning device includes a positioning column and a magnet sheet; the positioning column is arranged above the frame, and the positioning column is a square column; a limited step is arranged on the top of the positioning column, and the magnet sheet is arranged on the top of the positioning column and close to the limited step; the front side and right side of the positioning column are the positioning side of the right-angle piece.

[0004] In order to solve the problem that the hardware cannot be stably positioned, resulting in the deviation of the connection seam and affecting the welding effect, the existing technology uses magnetic attraction to position the right-angle piece.

[0005] However, in actual use, hardware will produce a certain degree of external force during welding. Although the magnetic positioning method is convenient and fast, it is easy to affect the accuracy of the weldment, and the welding equipment has a relatively single matching connection angle for the hardware to be welded, and has a small scope of application.

[0006] Therefore, we proposed a furniture hardware corner positioning welding equipment to solve the problem that the existing welded hardware has a relatively single matching connection angle, which affects the welding efficiency. It can accurately connect the corner joints of the hardware and can adapt to the welding of hardware at different angles. Summary of the invention

[0007] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a positioning welding device for furniture hardware corners, which has the advantages of being able to accurately connect the corner joints of hardware and be able to adapt to welding hardware at different angles.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a positioning welding device for furniture hardware corners, comprising an equipment base, welding robots are respectively arranged at both ends of the equipment base, a square tube positioning mechanism is arranged on the upper surface of the equipment base, the square tube positioning mechanism comprises a mounting seat, the mounting seat is fixedly mounted on the upper surface of the equipment base, square tube anti-shake mechanisms are respectively arranged on both sides of the mounting seat, a welding square tube and a corner square tube are movably installed on the inner side of the square tube anti-shake mechanism, and the welding square tube forms an arrow-shaped structure after being welded with two groups of corner square tubes.

[0009] Preferably, an electric telescopic rod is fixedly installed on the inner side of the mounting seat, and a square groove frame 1 is hingedly installed on the piston rod at the output end of the electric telescopic rod, and the lower end of the square groove frame 1 is fixedly connected to an active slider which is slidably connected to the inner wall of the central groove preset on the upper surface of the equipment base.

[0010] Preferably, a limiting boss 1 is fixedly installed on the inner surface of the square groove frame 1, and the outer surface of the limiting boss 1 is rotatably connected to a movable rod 1 and a movable rod 3, and the end of the movable rod 1 away from the limiting boss 1 is rotatably connected to the limiting boss 2, and the lower end of the limiting boss 2 is fixedly installed with a side slider 1, and the lower outer surface of the side slider 1 is slidably connected to the inner wall of the inclined groove preset on the upper surface of the equipment base.

[0011] Preferably, a movable rod 2 is movably installed on the outer surface of the limiting boss 2, and one end of the movable rod 2 away from the limiting boss 2 is movably connected to a square groove frame 2, and a driven slider 1 is fixedly connected to the lower surface of the square groove frame 2, and the outer surface of the driven slider 1 is slidably connected to the inner wall of the limiting groove preset on the upper surface of the equipment base.

[0012] Preferably, one end of the movable rod three away from the limiting boss one is rotatably connected to the limiting boss three, and the lower end of the limiting boss three is fixedly mounted with a side slider two slidably connected to the inner wall of the inclined groove.

[0013] Preferably, a movable rod four is movably installed on the outer surface of the limiting boss three, and one end of the movable rod four away from the limiting boss three is rotatably connected to a square groove frame three, and the lower surface of the square groove frame three is slidably connected to the inner wall of the limiting groove.

[0014] Preferably, the square tube anti-shake mechanism includes a support plate, and the support plates are arranged in three groups. The outer surfaces of two groups of the support plates are respectively fixedly connected to the outer surfaces of square groove frame two and square groove frame three, and one group of the support plates is fixedly installed on the outer surface of square groove frame one. The lower end of the support plate is provided with an adjustment component, and the adjustment component is composed of a drive motor and a threaded rod. One end of the threaded rod is fixedly connected to the output shaft of the drive motor, and the outer surfaces of both ends of the threaded rod are respectively rotatably connected to the inner wall of the lower end of the support plate.

[0015] Preferably, the outer surface of the threaded rod is threadedly connected with a clamping plate, the inner surface of the clamping plate is provided with a movable groove for auxiliary limiting, the inner side of the movable groove is provided with a flexible clamping unit, the flexible clamping unit includes a guide block slidably mounted on the inner surface of the movable groove, the outer surface of the guide block is hingedly mounted with a hinged rod, and the other end of the hinged rod is rotatably connected to a back plate.

[0016] Preferably, a contact arc plate is provided on the outer side of the back plate, and a buffer component is fixedly provided between the back plate and the contact arc plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] By adopting an electric telescopic rod to provide power for the telescopic activity, square slot frame one, square slot frame two and square slot frame three are driven to move synchronously in turn and point to the same direction. The lengths of the four groups of movable rods are consistent, and the moving angles of the sliders are consistent. The setting of the square tube anti-shake mechanism is utilized to control the driving of the support plate to realize the relative movement of the two groups of clamping plates. The inner flexible clamping unit is respectively clamped with the two sides of the welded square tube and the corner square tube to ensure that the clamped welded square tube and the corner square tube move synchronously in the same direction, so as to realize the matching assembly of the welded square tube and the two groups of corner square tubes. Through the effect of this automatic positioning, the welding accuracy of the hardware weldments is increased. With the addition of the buffer component, the shaking of the clamped hardware during welding is avoided, so as to further improve the welding quality and accuracy. The corners of the hardware to be processed are positioned first and then welded, which can effectively control the deformation of the hardware corners, greatly reduce the labor intensity and improve the welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 It is a structural schematic diagram of the splicing state of the welded square tube (11) and the corner square tube (12) of the present invention;

[0021] Figure 3 It is a schematic structural diagram of the welded square tube (11) and the corner square tube (12) of the present invention in an unjoined state;

[0022] Figure 4 It is a schematic diagram of the partial structure of the square tube positioning mechanism (3) of the present invention;

[0023] Figure 5 It is a schematic diagram of the side cross-sectional structure of the device base (1) of the present invention;

[0024] Figure 6 It is a structural schematic diagram of the splicing state of the welded square tube (11) and the corner square tube (12) of the present invention;

[0025] Figure 7 It is a schematic diagram of the disassembled structure of the support plate (41) and the welded square tube (11) of the present invention;

[0026] Figure 8 is a schematic diagram of a partial cross-sectional structure of a support plate (41) of the present invention;

[0027] Fig. 9 It is a schematic diagram of the disassembled structure of the flexible clamping unit of the present invention;

[0028] Fig.10 is a schematic structural diagram of a welding robot (2) of the present invention;

[0029] Fig.11 It is a schematic diagram of the pipe body structure after welding of the present invention.

[0030] In the figure: 1. Equipment base; 11. Welding square tube; 12. Corner square tube; 2. Welding robot; 3. Square tube positioning mechanism; 31. Mounting seat; 311. Electric telescopic rod; 32. Square slot frame 1; 320. Limiting convex column 1; 321. Active slider; 322. Active rod 1; 323. Active rod 2; 324. Active rod 3; 325. Active rod 4; 33. Side slider 1; 330. Limiting convex column 2; 34. Side slider 2; 340. Limiting convex column 3; 35. Square slot frame 2; 351. Driven slider 1; 36. Square slot frame 3; 361. Driven slider 2; 4. Square tube anti-shake mechanism; 41. Support plate; 42. Adjustment assembly; 43. Clamp; 431. Active slot; 432. Articulated rod; 433. Back plate; 434. Contact arc plate. DETAILED DESCRIPTION

[0031] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit 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.

[0032] Embodiment 1

[0033] See also Figure 1-11The present invention provides a technical solution: a positioning welding device for furniture hardware corners, comprising a device base 1, welding robots 2 are respectively arranged at both ends of the device base 1, a square tube positioning mechanism 3 is arranged on the upper surface of the device base 1, the square tube positioning mechanism 3 comprises a mounting seat 31, the mounting seat 31 is fixedly mounted on the upper surface of the device base 1, square tube anti-shake mechanisms 4 are respectively arranged on both sides of the mounting seat 31, a welding square tube 11 and a corner square tube 12 are movably mounted on the inner side of the square tube anti-shake mechanism 4, and a square slot frame 1 32, a square slot frame 2 35 and a square slot frame 3 36 are driven to move synchronously in turn and point to the same direction, the lengths of the four groups of movable rods are consistent, and the slider moves The moving angles are consistent, and the setting of the square tube anti-shake mechanism 4 is utilized to control the support plate 41 to drive the two groups of clamping plates 43 to realize the relative movement. The inner flexible clamping units are respectively clamped with the two sides of the welding square tube 11 and the corner square tube 12 to ensure that the clamped welding square tube 11 and the corner square tube 12 move synchronously in the same direction, so as to realize the matching assembly of the welding square tube 11 and the two groups of corner square tubes 12. Through the effect of this automatic positioning, the welding accuracy of the hardware weldments is increased, and with the addition of the buffer component, the shaking of the clamping hardware during welding is avoided, so as to further improve the welding quality and accuracy. The corners of the hardware to be processed are positioned first and then welded, which can effectively control the deformation of the hardware corners, greatly reduce the labor intensity, and improve the welding efficiency.

[0034] Embodiment 2

[0035] See attached Figure 1-11 On the basis of the first embodiment, in order to realize the one-time automatic seam docking of hardware welded parts and ensure the accuracy of hardware corner welding:

[0036] An electric telescopic rod 311 is fixedly installed on the inner side of the mounting seat 31, and a piston rod at the output end of the electric telescopic rod 311 is hingedly installed with a square slot frame 1 32, and the lower end of the square slot frame 1 32 is fixedly connected with an active slider 321 that is slidably connected to the inner wall of the central slot preset on the upper surface of the equipment base 1, and a limiting boss 1 320 is fixedly installed on the inner surface of the square slot frame 1 32, and the outer surface of the limiting boss 1 320 is rotatably connected with a movable rod 1 322 and a movable rod 3 324, and one end of the movable rod 1 322 away from the limiting boss 1 320 is rotatably connected to the limiting boss 2 330, and a side slider 1 33 is fixedly installed on the lower end of the limiting boss 2 330, and the lower outer surface of the side slider 1 33 is slidably connected to the inner wall of the inclined slot preset on the upper surface of the equipment base 1, and the outer surface of the limiting boss 2 330 A movable rod 2 323 is movably installed on the surface, and one end of the movable rod 2 323 away from the limiting boss 2 330 is movably connected to the square groove frame 2 35, and the lower surface of the square groove frame 2 35 is fixedly connected to a driven slider 1 351, and the outer surface of the driven slider 1 351 is slidably connected to the inner wall of the limiting groove preset on the upper surface of the equipment base 1, and the end of the movable rod 3 324 away from the limiting boss 1 320 is rotatably connected to the limiting boss 3 340, and the lower end of the limiting boss 3 340 is fixedly installed with a side slider 2 34 slidably connected to the inner wall of the inclined groove, and the outer surface of the limiting boss 3 340 is movably installed with a movable rod 4 325, and the end of the movable rod 4 325 away from the limiting boss 3 340 is rotatably connected to the square groove frame 3 36, and the lower surface of the square groove frame 3 36 is slidably connected to the inner wall of the limiting groove;

[0037] By using the electric telescopic rod 311 as the hub of power output, the piston rod at its output end is extended and retracted, driving the square slot frame 1 32 and the active slider 321 connected to the lower end to move along the central slot opened on the equipment base 1. At this time, the movement of the square slot frame 1 32 drives the angles of the active rods 1 322 and the active rods 324 on both sides to change. At this time, the active angles of the active rods 1 322 and the active rods 324 remain consistent, and at this time, the active rods 1 322 and the active rods 324 respectively drive the side sliders 1 33 and the side sliders 2 34 to move synchronously on the inner wall of the inclined slot, and the active rods 2 323 and 4 325 are connected to realize The square groove frame 2 35 and the square groove frame 3 36 move synchronously, and at this time, the driven slider 1 351 and the driven slider 2 361 move synchronously on the inner wall of the limiting groove, the square groove frame 1 32 drives the welded square tube 11 to move forward, and the driven slider 1 351 and the driven slider 2 361 respectively drive the corner square tube 12 to move toward the center position, the welded square tube 11 and the corner square tube 12 achieve precise seam docking, and can be matched according to the seam positions of different angles, thereby improving the positioning effect before the hardware corner welding, and adopting the method of positioning first and then welding, which can effectively control the deformation of the hardware corners and further enhance the welding accuracy.

[0038] Embodiment 3

[0039] See attached Figure 1-11 On the basis of the second embodiment, in order to achieve stability during corner welding of hardware and avoid deviation of the joints of hardware weldments:

[0040] The square tube anti-shake mechanism 4 includes a support plate 41, and the support plate 41 is provided with three groups. The outer surfaces of two groups of support plates 41 are respectively fixedly connected to the outer surfaces of the square groove frame 2 35 and the square groove frame 36. One group of support plates 41 is fixedly installed on the outer surface of the square groove frame 1 32. The lower end of the support plate 41 is provided with an adjustment component 42. The adjustment component 42 is composed of a drive motor and a threaded rod. One end of the threaded rod is fixedly connected to the output shaft of the drive motor, and the outer surfaces of both ends of the threaded rod are respectively rotatably connected to the inner wall of the lower end of the support plate 41. The outer surface of the threaded rod is threadedly connected with a clamping plate 43, and the inner surface of the clamping plate 43 is provided with a movable groove 431 for auxiliary limiting, and the inner side of the movable groove 431 is provided with a flexible clamping unit, and the flexible clamping unit includes a guide block slidably installed on the inner surface of the movable groove 431, and the outer surface of the guide block is hingedly installed with a hinge rod 432, and the other end of the hinge rod 432 is rotatably connected with a back plate 433, and the outer side of the back plate 433 is provided with a contact arc plate 434, and a buffer component is fixedly provided between the back plate 433 and the contact arc plate 434;

[0041] Before positioning the welded square tube 11 and the corner square tube 12 for the seam, the welded square tube 11 and the corner square tube 12 are first stably installed, and the hardware is supported by the bottom of the support plate 41. The support plate 41 is used to operate, and the drive motor is turned on to rotate its output shaft as the hub of power transmission. At this time, the threaded rod rotates, and under the action of the threaded adapter, the two sets of clamps 43 move relatively, thereby achieving stable clamping of the welded square tube 11 and the corner square tube 12 by the inner flexible clamping unit, ensuring the stability of the weldment during welding, avoiding offset, causing the problem of weld point displacement affecting the welding effect, and further improving the overall welding accuracy and efficiency of the equipment.

[0042] Embodiment 4

[0043] See attached Figure 1-11 Based on the third embodiment, this embodiment adds a buffer component:

[0044] The buffer assembly includes a buffer spring and a telescopic sleeve rod. The two ends of the telescopic sleeve rod and the buffer spring are fixedly connected to the outer surface of the back plate 433 and the inner surface of the contact arc plate 434 respectively. The buffer spring is slidably sleeved on the outside of the telescopic sleeve rod. By adding a buffer assembly at a position between the contact arc plate 434 and the back plate 433, the stability of the contact arc plate 434 when clamping the welded square tube can be ensured, the external force jitter generated by the welded parts during welding can be effectively reduced, the welding offset and deformation of the square tube can be avoided, and the welding quality and precision can be further improved.

[0045] The working principle and use process of the present invention are as follows: in actual operation, first, two corner square tubes 12 of equal length are taken, and a welding square tube 11 with the same inner diameter and outer diameter as the corner square tube 12 is selected. The operator sequentially places the two groups of corner square tubes 12 at the center of the support plate 41 connected to the inner side of the square groove frame 2 35 and the square groove frame 3 36, and places the welding square tube 11 on the support plate 41 at the front end of the square groove frame 1 32. Then, the relative movement of the two groups of clamping plates 43 is realized by driving the support plate 41, so as to weld the square tubes. The sides of the square tube 11 and the corner square tube 12 are adapted and clamped to ensure the stable limit of the hardware accessories. Furthermore, the electric telescopic rod 311 is used as a power to drive the square slot frame 1 32, the square slot frame 2 35 and the square slot frame 36 to achieve synchronous movement in the same direction, so as to achieve the precise seam connection of the welded square tube 11 and the corner square tube 12. Finally, the welding robot 2 is adjusted to perform precise welding on the seams of the pipe fittings, and the corners of the processed hardware are first positioned and then welded, so as to effectively control the deformation of the hardware corners, with high welding accuracy and a wide range of applications.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A furniture hardware corner positioning welding device, comprising a device base (1), characterized in that: A welding robot (2) is respectively arranged at both ends of the equipment base (1); a square tube positioning mechanism (3) is arranged on the upper surface of the equipment base (1); the square tube positioning mechanism (3) comprises a mounting seat (31); the mounting seat (31) is fixedly mounted on the upper surface of the equipment base (1); square tube anti-shake mechanisms (4) are respectively arranged on both sides of the mounting seat (31); a welding square tube (11) and a corner square tube (12) are movably mounted on the inner side of the square tube anti-shake mechanism (4); An electric telescopic rod (311) is fixedly mounted on the inner side of the mounting seat (31); a square slot frame (32) is hingedly mounted on a piston rod at the output end of the electric telescopic rod (311); an active sliding block (321) is fixedly connected at the lower end of the square slot frame (32) and is slidably connected to the inner wall of a central slot preset on the upper surface of the equipment base (1); A limiting boss 1 (320) is fixedly mounted on the inner surface of the square groove frame 1 (32); a movable rod 1 (322) and a movable rod 3 (324) are rotatably connected to the outer surface of the limiting boss 1 (320); an end of the movable rod 1 (322) away from the limiting boss 1 (320) is rotatably connected to the limiting boss 2 (330); a side slider 1 (33) is fixedly mounted on the lower end of the limiting boss 2 (330); and the lower outer surface of the side slider 1 (33) is slidably connected to the inner wall of the inclined groove preset on the upper surface of the device base (1); A movable rod 2 (323) is movably mounted on the outer surface of the second limiting protrusion (330); an end of the second movable rod (323) away from the second limiting protrusion (330) is movably connected to a second square groove frame (35); a lower surface of the second square groove frame (35) is fixedly connected to a first driven slider (351); and the outer surface of the first driven slider (351) is slidably connected to the inner wall of a limiting groove preset on the upper surface of the device base (1); One end of the movable rod 3 (324) away from the limiting protrusion 1 (320) is rotatably connected to the limiting protrusion 3 (340), and the lower end of the limiting protrusion 3 (340) is fixedly mounted with a side slider 2 (34) slidably connected to the inner wall of the inclined groove; A movable rod four (325) is movably mounted on the outer surface of the limiting boss three (340), and one end of the movable rod four (325) away from the limiting boss three (340) is rotatably connected to a square groove frame three (36), and the lower surface of the square groove frame three (36) is slidably connected to the inner wall of the limiting groove.

2. The positioning welding equipment for furniture hardware corners according to claim 1 is characterized in that: The square tube anti-shake mechanism (4) comprises a support plate (41), wherein the support plate (41) is provided in three groups, wherein the outer surfaces of two groups of the support plates (41) are respectively fixedly connected to the outer surfaces of the second square groove frame (35) and the third square groove frame (36), and one group of the support plates (41) is fixedly mounted on the outer surface of the first square groove frame (32). An adjustment component (42) is provided at the lower end of the support plate (41), wherein the adjustment component (42) is composed of a drive motor and a threaded rod, wherein one end of the threaded rod is fixedly connected to the output shaft of the drive motor, and the outer surfaces of both ends of the threaded rod are respectively rotatably connected to the inner wall of the lower end of the support plate (41).

3. The positioning welding equipment for furniture hardware corners according to claim 2 is characterized in that: The outer surface of the threaded rod is threadedly connected to a clamping plate (43), the inner surface of the clamping plate (43) is provided with a movable groove (431) for auxiliary limiting, the inner side of the movable groove (431) is provided with a flexible clamping unit, the flexible clamping unit comprises a guide block slidably mounted on the inner surface of the movable groove (431), the outer surface of the guide block is hingedly mounted with a hinged rod (432), and the other end of the hinged rod (432) is rotatably connected to a back plate (433).

4. The positioning welding equipment for furniture hardware corners according to claim 3 is characterized in that: A contact arc plate (434) is provided on the outer side of the back plate (433), and a buffer component is fixedly provided between the back plate (433) and the contact arc plate (434).

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