A brazing device for hardware machining

Abstract

The application relates to the field of brazing technology and discloses a brazing device for hardware machining, which comprises a rotating disc, a supporting strip plate, a clamping mechanism, a welding gun, an adjusting mechanism for adjusting the angle of the clamping mechanism is arranged on the supporting strip plate, the adjusting mechanism comprises: a suspension table, the clamping mechanism is detachably connected to the suspension table; three rotating circular plates are arranged and the axes are collinear, each rotating circular plate is fixed with a horizontally-arranged extension rod; three bent connecting rods are hinged to the hinge joints at one end and are hinged to the side edges of the suspension table at the other end, three hinge points between the three bent connecting rods and the suspension table are equidistantly distributed; a supporting table is installed at the end of the supporting strip plate and is used for supporting the three rotating circular plates whose axes are collinear and are rotated respectively; and a driving assembly is arranged with three groups and is used for driving the three rotating circular plates to rotate. The application realizes accurate positioning of the base material in multiple degrees of freedom, realizes efficient cooling by rotating disc movement after welding, and significantly improves the production efficiency and product quality.

Description

Technical Field

[0001] This application relates to the field of brazing technology, and more particularly to a brazing apparatus for processing hardware parts. Background Technology

[0002] In the field of precision machining of hardware parts, brazing has become a key technology for joining metal parts due to its advantages such as small heat-affected zone and high connection strength. Flame brazing, as an important branch of brazing, typically involves core modules in its equipment configuration, including a gas supply unit, welding torch assembly, rotary table, and basic clamping device. Existing technical solutions mostly adopt a circular array layout, using a motor-driven intermittent rotating turntable in conjunction with evenly distributed fixed stations to achieve continuous operation.

[0003] However, this traditional architecture has significant technical limitations: First, the rigid clamping mechanism cannot adapt to workpieces with complex geometries. When welding irregularly shaped parts or requiring multi-angle welding, the lack of spatial orientation adjustment capability often leads to uneven temperature distribution in the heating zone and poor solder wettability, among other process defects. Second, the post-weld cooling process relies on passive heat dissipation or external cooling devices, which not only prolongs the production cycle but also easily causes workpiece deformation or residual stress problems due to inconsistent cooling rates. These technical bottlenecks severely restrict the mass production pass rate and production efficiency of high-precision hardware parts, and urgently require breakthroughs through equipment innovation. Summary of the Invention

[0004] This application provides a brazing device for hardware processing, which solves the technical problem that existing brazing devices typically use fixed clamping mechanisms to fix the base material, making it impossible to achieve multi-degree-of-freedom adjustment. It enables precise multi-degree-of-freedom positioning of the base material and utilizes the rotation of a turntable for efficient cooling after welding, thereby significantly improving production efficiency and product quality.

[0005] This application provides a brazing device for processing hardware parts, including a turntable rotatably disposed in a water tank, several support plates fixed around the turntable, and a clamping mechanism fixedly installed on the support plates. A welding torch is disposed outside the turntable. The clamping mechanism is used to clamp the base material to be welded. An adjustment mechanism for adjusting the angle of the clamping mechanism is provided on the support plates. The adjustment mechanism includes: a suspension platform located above the support plates, and the clamping mechanism is detachably connected to the suspension platform; and three rotating circular plates arranged horizontally and located below the suspension platform, with their axes collinear. Each rotating circular plate is fixed with a horizontally arranged extension rod. The extension rod has a hinge joint at the end away from the rotating circular plate; a bent connecting rod has one end hinged to the hinge joint and the other end hinged to the side of the suspension platform; the three hinge points between the three bent connecting rods and the suspension platform are equidistantly distributed; the hinge axis between the bent connecting rod and the hinge joint is inclined, and the extension line of the top of the hinge axis passes through the axis of the suspension platform; the hinge axis between the bent connecting rod and the suspension platform is horizontal and passes through the center of the suspension platform; a support platform is installed at the end of the support strip plate, and the support platform is used to support the three rotating circular plates with collinear axes and each rotating independently; three drive assemblies are provided, each used to drive the three rotating circular plates to rotate.

[0006] Furthermore, the support platform includes: a base plate, horizontally arranged and fixed to the end of the support bar plate; a rotating shaft, vertically rotatably arranged on the base plate, with a rotating circular plate fixed to the top of the rotating shaft; a rotating cylinder, sleeved outside the rotating shaft, with a bearing one arranged between the inner wall of the rotating cylinder and the rotating shaft, a bearing two sleeved above the bearing one on the outer wall of the rotating cylinder, the top of the rotating cylinder located below the top of the rotating shaft, a second rotating circular plate fixed on the outer wall of the top of the rotating cylinder, and a third rotating circular plate located below the second rotating circular plate, with the third rotating circular plate fixedly connected to the outer ring of the bearing two.

[0007] Furthermore, the drive assembly includes: a main gear, rotatably mounted on the base plate; a driven gear, meshing with the main gear, wherein one set of driven gears of the drive assembly is located below the rotating cylinder and rotates coaxially with the rotating shaft, another set of driven gears of the drive assembly is sleeved on the outer wall of the rotating cylinder and rotates coaxially with the rotating cylinder, and yet another set of driven gears of the drive assembly is sleeved on the outer ring of the second bearing and rotates coaxially with the outer ring of the second bearing; and a drive motor, fixedly mounted on the base plate, for driving the main gear to rotate.

[0008] Furthermore, the support platform also includes a cover, which is fixed to the upper surface of the base plate, and the main gears and driven gears of the three sets of drive components are all located inside the cover.

[0009] Furthermore, the wiring harness of the drive motor is routed along the support strip.

[0010] Furthermore, several fan blades are fixed around the outer wall of the suspension platform. As the three rotating circular plates rotate synchronously in the same direction, the fan blades blow out cooling air into the clamping mechanism of the suspension platform.

[0011] Furthermore, the end of the extension rod away from the rotating circular plate extends out of the outer periphery of the suspension platform, and three equally spaced suspension plates are fixed on the periphery of the suspension platform. The end of the bending connecting rod away from the hinge joint is hinged to the end face of the suspension plate away from the suspension platform, and several fan blades are located between the end face of the suspension plate away from the suspension platform and the outer periphery of the suspension platform.

[0012] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0013] Thanks to the adoption of an adjustment mechanism, the clamping mechanism fixes the base material, the drive motor starts, and the corresponding rotating disc rotates through the gear set. The rotating disc pushes the suspension platform to tilt through the extension rod and bending connecting rod. By controlling the rotation angle of the three rotating discs, the pitch, yaw, and combined angle adjustments of the suspension platform can be achieved. After adjusting to the target angle, the welding torch performs flame brazing on the base material. During the flame welding process, the angle can be adjusted in real time to improve the welding quality. After welding, the three rotating discs rotate synchronously in the same direction, driving the fan blades to generate cooling air and accelerate the cooling of the base material. This solves the technical problem in the existing brazing device that usually uses a fixed clamping mechanism to fix the base material, which cannot achieve multi-degree-of-freedom adjustment. It achieves multi-degree-of-freedom precise positioning of the base material and uses the rotation of the turntable to achieve efficient cooling after welding, thereby significantly improving production efficiency and product quality. Attached Figure Description

[0014] Figure 1 This is a partial structural schematic diagram of the brazing device for hardware processing in an embodiment of this application.

[0015] Figure 2 This is a schematic diagram of the overall structure of the clamping mechanism and the adjusting mechanism in the embodiments of this application;

[0016] Figure 3 for Figure 2 A schematic diagram of the middle section, mainly showing the construction of the adjustment mechanism;

[0017] Figure 4 for Figure 3 A schematic diagram of the middle section, mainly illustrating the layout of the bending connecting rods;

[0018] Figure 5 for Figure 4 A cross-sectional schematic diagram of the middle section, mainly illustrating the structure of the support platform;

[0019] In the diagram: 100, water tank; 200, welding torch; 1, turntable; 2, support plate; 3, clamping mechanism; 300, base material to be welded; 4, adjustment mechanism; 41, suspension platform; 411, suspension plate; 42, rotating circular plate; 421, extension rod; 422, hinge joint; 43, bending connecting rod; 44, support platform; 4401, bearing one; 4402, bearing two; 441, base plate; 442, rotating shaft; 443, rotating cylinder; 444, cover; 45, drive assembly; 451, main gear; 452, driven gear; 453, drive motor; 46, fan blade. Detailed Implementation

[0020] To better understand the technical solution of this application, the above technical solution will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0021] Reference Figure 1 and Figure 2 A brazing device for processing hardware parts includes a water tank 100, a turntable 1, a support plate 2, a clamping mechanism 3, and an adjustment mechanism 4. The water tank 100 is circular and equipped with a circulating cooling water system to ensure heat dissipation during continuous operation. The turntable 1 is located at the center of the water tank 100 and is connected to the water tank 100 for smooth rotation via a bottom bearing mechanism. The turntable 1 is driven by an electric motor to achieve intermittent rotation. On the circumferential edge of the turntable 1, multiple radially extending support plates 2 are fixedly installed at equal intervals. Each support plate 2 has an adjustment mechanism 4 installed at the end away from the turntable 1. Each adjustment mechanism 4 is equipped with a clamping mechanism 3, which is used to clamp the base material to be welded. The clamping mechanism 3 can be replaced according to the clamping requirements of the base material 300 to be welded. The adjustment mechanism 4 is used to adjust the posture of the clamping mechanism 3. In the outer working area of ​​the turntable 1, a multi-directional adjustable welding torch 200 is configured. The welding torch 200 is used for flame brazing of the base material.

[0022] Reference Figures 2-5The adjustment mechanism 4 includes a suspension platform 41, a rotating circular plate 42, a bending connecting rod 43, a support platform 44, a drive assembly 45, and fan blades 46. The suspension platform 41 is a thick circular plate, and its height is higher than that of the support strip 2. The upper surface of the suspension platform 41 has multiple mounting holes, which can be used to detachably connect different clamping mechanisms 3. Three equally spaced suspension plates 411 are fixed on the circumference of the suspension platform 41. The suspension plates 411 are used to connect the bending connecting rod 43. An equal number of fan blades 46 are arranged between two adjacent suspension plates 411. The fan blades 46 are fixed to the outer wall of the suspension platform 41. The length of the suspension plate 411 is greater than the length of the fan blades 46. When the suspension platform 41 rotates circumferentially around its central axis, the fan blades 46 of the suspension platform 41 will also rotate synchronously, thereby blowing out airflow. The rotating circular plate 42 is a thin circular plate with a diameter much smaller than that of the suspension platform 41. The axis of the rotating circular plate 42 is collinear with the axis of the suspension platform 41. There are three rotating circular plates 42 in total. The three rotating circular plates 42 are horizontally arranged with their axes collinear. The three rotating circular plates 42 are located at different heights and are all located below the suspension platform 41. An extension rod 421 is fixed on each rotating circular plate 42. The end of the extension rod 421 away from the rotating circular plate 42 is provided with a hinge joint 422. The three rotating circular plates 42 are driven to rotate independently by three drive components 45 respectively.

[0023] Continue to refer to Figures 2-5 One end of the bent connecting rod 43 is hinged to the hinge joint 422, and the other end is hinged to the end face of the suspension plate away from the suspension platform 41. The three bent connecting rods 43 are equidistant from the hinge points of the three suspension plates 411 at 120° intervals, ensuring that the suspension platform 41 can be adjusted in multiple directions. The hinge axis between the bent connecting rod 43 and the hinge joint 422 is inclined, and the extension line of the top of the hinge axis passes through the axis of the suspension platform 41. The hinge axis between the bent connecting rod 43 and the suspension plate 411 is horizontal and passes through the center of the suspension platform 41. Three coaxial but independently rotating rotating circular plates 42 are connected to the suspension platform 41 through the bent connecting rods 43, forming a spatial parallel mechanism. The rotation of the rotating circular plate 42 will cause the suspension platform 41 to produce tilt angle changes in different directions through the corresponding bending connecting rod 43. The hinge axis of the bending connecting rod 43 and the suspension platform 41 is arranged horizontally to ensure uniform force, while the hinge axis of the rotating circular plate 42 is tilted to form an asymmetrical thrust. When the three sets of bending connecting rods 43 move together, the suspension platform 41 can tilt in multiple directions. The specific angle depends on the length of the connecting rod and the position of the hinge point. The length of the bending connecting rod 43 and the position of the hinge point can be designed according to the needs of attitude adjustment. In addition, the use of three sets of drive components 45 to make the three rotating circular plates 42 rotate synchronously in the same direction can make the suspension platform 41 rotate.

[0024] Continue to refer to Figures 2-5A support platform 44 is installed at the end of the support plate 2 away from the turntable 1. The support platform 44 supports three rotating circular plates 42 and installs three sets of drive assemblies 45. The support platform 44 includes a base plate 441, a rotating shaft 442, a rotating cylinder 443, and a cover 444. The base plate 441 is horizontally set and fixedly connected to the end of the support plate 2 away from the turntable 1. The rotating shaft 442 is vertically set and rotatably set at the center of the base plate 441. The first rotating circular plate 42 is fixed to the top of the rotating shaft 442, and the axis of the rotating circular plate 42 is collinear with the axis of the rotating shaft 442. The rotating cylinder 443 is sleeved on the outside of the rotating shaft 442. A bearing 4401 is provided between the inner wall of the rotating cylinder 443 and the rotating shaft 442. The rotating cylinder 443 and the rotating shaft 442 can rotate relative to each other through the bearing 4401. The top of the rotating cylinder 443 is located at the top of the rotating shaft 442. Below the top of the rotating cylinder 443, a second rotating circular plate 42 is fitted and fixed on the outer wall of the top of the rotating cylinder 443. The second rotating circular plate 42 rotates synchronously with the rotating cylinder 443. A second bearing 4402 is also fitted on the outer wall of the rotating cylinder 443 below the second rotating circular plate 42. A third rotating circular plate 42 is positioned above the second rotating circular plate 42 and below it. The bottom surface of the third rotating circular plate 42 is fixedly connected to the outer ring of the second bearing 4402. Thus, the third rotating circular plate 42 and the rotating cylinder 443 can achieve relative rotation through the second bearing 4402. The cover 444 is fixed to the base plate 441. The top of the rotating shaft 442 passes through the top of the cover 444. All three rotating circular plates 42 are located outside the cover 444, and some components of the drive assembly 45 are located inside the cover 444.

[0025] Continue to refer to Figures 2-5The drive assembly 45 includes a main gear 451, a driven gear 452, and a drive motor 453. The main gear 451 is rotatably mounted on the base plate 441. The driven gear 452 of each drive assembly 45 meshes with its respective main gear 451. One set of driven gears 452 is located below the bottom of the rotating cylinder 443 and rotates coaxially with the rotating shaft 442. Another set of driven gears 452 is sleeved on the outer wall of the rotating cylinder 443 and rotates coaxially with the rotating cylinder 443. Yet another set of driven gears 452 is sleeved and interference-fitted onto the outer ring of the second bearing 4402. Specifically, the rotating circular plate 42 on the outer ring of the second bearing 4402 can be fixed on the driven gear 452. The drive motor 453 is mounted on the lower surface of the base plate 441, and the drive motor 453 of each drive assembly 45 drives its respective main gear 451 to rotate. The wiring harness of the drive motor 453 runs along the support strip 2 to avoid interference. Therefore, the drive assembly 45 corresponding to the driven gear 452 connected to the rotating shaft 442 can independently drive the rotating shaft 442 to rotate, and thus drive the rotating circular plate 42 on the rotating shaft 442 to rotate independently; the drive assembly 45 corresponding to the driven gear 452 connected to the rotating cylinder 443 can independently drive the rotating cylinder 443 to rotate, and thus drive the rotating circular plate 42 on the rotating cylinder 443 to rotate independently; the drive assembly 45 corresponding to the driven gear 452 connected to the outer ring of the bearing 4402 can independently drive the rotating circular plate 42 connected to the driven gear 452 to rotate independently.

[0026] Three sets of drive motors 453 control the rotating shaft 442 (directly driving the upper circular plate), the rotating cylinder 443 (driving the middle circular plate), and the outer ring of bearing 4402 (driving the lower circular plate) respectively through the main gear 451 and the driven gear 452. Each motor can be started and stopped individually or run synchronously, which is achieved through PLC programming. The gear drive system ensures the precise movement of the rotating circular plate 42 and improves the welding quality.

[0027] The functional principle of this application can be explained through the following methods:

[0028] Initial positioning stage: When the equipment is started, all three rotating circular plates 42 are at the initial zero angle. At this time, the suspension platform 41 remains horizontal, and the clamping mechanism 3 firmly fixes the base material 300 to be welded, ensuring that the workpiece will not shift during subsequent adjustment. The drive component 45 in the support platform 44 is in standby mode, ready for subsequent angle adjustment.

[0029] Multi-degree-of-freedom adjustment stage: When the welding angle needs to be adjusted, the drive motor 453 starts and drives the corresponding rotating circular plate 42 to rotate through the meshing transmission of the precision gear set (main gear 451 and driven gear 452). The rotational motion of each rotating circular plate 42 is transmitted to the bending connecting rod 43 through the extension rod 421 on it. The three coaxial but independently rotating circular plates 42 are connected to the suspension platform 41 through the bending connecting rod 43 to form a spatial parallel mechanism. The rotation of each rotating circular plate 42 will push the suspension platform 41 to produce different tilt angle changes through the corresponding bending connecting rod 43, converting the rotational motion into the multi-directional tilting motion of the suspension platform 41. This adjustment process can realize the precise positioning of the suspension platform 41 in any direction in space.

[0030] Dynamic welding stage: The welding torch 200 heats and welds the pre-adjusted base material. The welding status can be monitored in real time, and the angle of the suspension platform 41 can be dynamically adjusted as needed. Through the coordinated control of three sets of drive motors 453, fine-tuning can be achieved during the welding process to ensure that the welding torch 200 is always at the optimal welding angle, so that the brazing filler metal flows evenly under the action of gravity. This dynamic adjustment capability is particularly suitable for welding complex curved surfaces or irregularly shaped workpieces.

[0031] Active cooling stage: The control system commands the three rotating discs 42 to rotate synchronously in the same direction. The rotational motion is converted into a strong cooling airflow through the fan blades 46 on the outer periphery of the suspension platform 41. The cooling air acts directly on the welding part to achieve rapid and uniform cooling, which can shorten the traditional cooling time.

[0032] During the rotation of the turntable 1 to switch workstations, the system can simultaneously control the rotation of the already welded suspension platform 41, so that the fan blades 46 continuously generate cooling airflow, realizing parallel operations of welding, cooling, and workstation switching. The cooling process of each workstation is synchronized with the welding preparation of the next workstation, which improves the overall production efficiency and is suitable for large-scale continuous production scenarios.

[0033] This application, through innovative mechanical structure design and intelligent control system integration, not only solves the problems of limited adjustment and low cooling efficiency of traditional brazing devices, but also realizes high-precision and high-efficiency intelligent production, which has significant technical advantages and application value in the field of hardware processing.

[0034] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

[0035] The above description is merely a preferred embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present application, based on the technical solution and concept of the present application, should be covered within the scope of protection of the present application.

Claims

1. A hardware machining brazing device, comprising a rotating disc (1) rotatably arranged in a water tank (100), a plurality of support strips (2) fixed along the circumference of the rotating disc (1), and a clamping mechanism (3) fixedly installed on the support strips (2), wherein a welding gun (200) is arranged outside the rotating disc (1), and the clamping mechanism (3) is used for clamping a base material (300) to be welded, characterized in that, The support strip plate (2) is provided with an adjusting mechanism (4) for adjusting the angle of the clamping mechanism (3), the adjusting mechanism (4) comprises: A hanging platform (41) is located above the support strip plate (2), and the clamping mechanism (3) is detachably connected to the hanging platform (41); A rotating disc (42) is horizontally arranged below the hanging platform (41), the rotating disc (42) is provided with three coaxial axes, each rotating disc (42) is fixed with a horizontally arranged extension rod (421), and the extension rod (421) is provided with a hinge joint (422) at one end away from the rotating disc (42); A bent connecting rod (43) is hingedly connected to the hinge joint (422) at one end and hingedly connected to the side edge of the hanging platform (41) at the other end, three hinge joints between the three bent connecting rods (43) and the hanging platform (41) are equidistantly distributed, the hinge axis between the bent connecting rod (43) and the hinge joint (422) is inclined, and the top extension line of the hinge axis passes through the axis of the hanging platform (41), and the hinge axis between the bent connecting rod (43) and the hanging platform (41) is horizontal and passes through the center of the hanging platform (41); A support platform (44) is installed at the end of the support strip plate (2), and the support platform (44) is used for supporting the three coaxial rotating discs (42) and rotating respectively; A driving assembly (45) is provided with three groups and is used for driving the three rotating discs (42) to rotate respectively; The support platform (44) comprises: A bottom plate (441) is horizontally arranged and fixed at the end of the support strip plate (2); A rotating shaft (442) is vertically arranged on the bottom plate (441), and the rotating shaft (442) is fixed with a rotating disc (42) at the top; A rotating cylinder (443) is arranged outside the rotating shaft (442), and a bearing (4401) is arranged between the inner wall of the rotating cylinder (443) and the rotating shaft (442), the outer wall of the rotating cylinder (443) is arranged above the bearing (4401), a bearing (4402) is arranged outside the rotating cylinder (443), the top of the rotating cylinder (443) is below the top of the rotating shaft (442), a second rotating disc (42) is fixed to the outer wall of the top of the rotating cylinder (443), and a third rotating disc (42) is arranged below the second rotating disc (42), and the third rotating disc (42) is fixedly connected with the outer ring of the bearing (4402).

2. A brazing apparatus for hardware machining as claimed in claim 1, characterized in that, The driving assembly (45) comprises: A main gear (451) is arranged on the bottom plate (441). A gear (452) engages with the main gear (451), wherein the gear (452) of one set of driving assemblies (45) is located below the rotating cylinder (443) and rotates coaxially with the rotating shaft (442), the gear (452) of another set of driving assemblies (45) is sleeved on the outer wall of the rotating cylinder (443) and rotates coaxially with the rotating cylinder (443), and the gear (452) of still another set of driving assemblies (45) is sleeved on the outer ring of the bearing two (4402) and rotates coaxially with the outer ring of the bearing two (4402); The driving motor (453) is fixedly installed on the bottom plate (441) and is used to drive the main gear (451) to rotate.

3. A brazing apparatus for the machining of hardware as claimed in claim 2, characterized in that The support table (44) further comprises a cover (444) fixed to the upper surface of the bottom plate (441), and the main gears (451) and the gears (452) of the three sets of driving assemblies (45) are located in the cover (444).

4. A brazing apparatus for hardware machining as defined in claim 2, wherein The wire harness of the driving motor (453) is routed along the support strip plate (2).

5. A brazing apparatus for hardware machining as defined in claim 1, wherein A plurality of fan blades (46) are fixed along the outer wall of the suspension table (41), and the three rotating circular plates (42) rotate synchronously and in the same direction, and the plurality of fan blades (46) blow cooling air to the clamping mechanism (3) in the suspension table (41).

6. A brazing apparatus for the machining of hardware as claimed in claim 5, wherein, The end of the extension rod (421) away from the rotating circular plate (42) extends outside the outer side of the suspension table (41), the outer side of the suspension table (41) is fixed with three suspension plates (411) distributed at equal intervals, the end of the bending connecting rod (43) away from the hinge joint (422) is hinged to the end surface of the suspension plate (411) away from one end of the suspension table (41), and the plurality of fan blades (46) are located between the end surface of the suspension plate (411) away from one end of the suspension table (41) and the outer circumferential surface of the suspension table (41).

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