A heating device

Abstract

The present invention relates to a heating device, comprising a conductive module, a plurality of heating modules and a driving module. The conductive module comprises conductive units arranged in pairs; the conductive units comprise a fixed connection row and a sliding connection row, a plurality of mutually independent first conductive blocks are arranged in a linear array on the fixed connection row; a plurality of mutually independent second conductive blocks are arranged in a linear array on the sliding connection row. The heating module comprises a pair of conductive seats and an electric heating plate connecting the two conductive seats; one conductive seat in the heating module is attached to an insulating support plate of one conductive unit, and the other conductive seat in the heating module is attached to an insulating support plate of another conductive unit. The driving module can drive the sliding connection row to move toward the fixed connection row so that the first conductive block and the second conductive block clamp the conductive seat. By supplying power to different first conductive blocks and second conductive blocks at different times, the heating sequence can be automatically controlled, thereby improving the heating efficiency.

Description

Technical Field

[0001] The invention relates to the field of welding pretreatment, and in particular to a heating device. Background Art

[0002] Welding is a manufacturing process and technology that uses heat, high temperature, or high pressure to join metals or other thermoplastic materials, such as plastics. During the welding process, heating is often required for preheating before welding, post-weld heat treatment, thermal balance to prevent deformation, and interlayer temperature maintenance.

[0003] Preheating is a process that involves heating the weldment locally and overall before welding to reduce weld stress and deformation. Post-weld heating is often used to reduce residual stress, improve fatigue strength, and mitigate the risk of delayed cracking. Thermal balance anti-deformation, which involves heating the weldment during the welding process, can reduce deformation. Interpass temperature maintenance is used to improve weld impact toughness and minimize cracking. Currently, heating methods commonly used include fuel heating, electric heating, and energy heating. The advantage of electric heating is that it uses electricity as a heat source and converts electrical energy into thermal energy through various methods to heat the workpiece. Electric heating is easy to control temperature, is environmentally friendly, and has high thermal efficiency.

[0004] The existing method of preheating the workpiece cannot realize automatic control of the heating sequence, and thus cannot efficiently and flexibly heat a large number of workpieces. Summary of the Invention

[0005] (1) Technical issues to be solved

[0006] The present invention provides a heating device, aiming to provide a heating device capable of automatically controlling a heating sequence.

[0007] (2) Technical solution

[0008] In order to solve the above problems, the present invention provides a heating device, which includes: a conductive module, a plurality of heating modules and a driving module;

[0009] The conductive module includes conductive units arranged in pairs; the conductive units include a fixed connection row and a sliding connection row, the fixed connection row is provided with a plurality of mutually independent first conductive blocks in a linear array; the sliding connection row is provided with a plurality of mutually independent second conductive blocks in a linear array, the first conductive blocks and the second conductive blocks are arranged opposite to each other, an insulating support plate is provided between the first conductive blocks and the second conductive blocks, and the sliding connection row is capable of moving toward the fixed connection row;

[0010] The heating module includes a pair of conductive seats and an electric heating plate connecting the two conductive seats; one of the conductive seats in the heating module is attached to the insulating support plate of one of the conductive units, and the other conductive seat in the heating module is attached to the insulating support plate of the other conductive unit;

[0011] The driving module is connected to the sliding connection plate, and the driving module can drive the sliding connection row to move toward the fixed connection row so that the first conductive block and the second conductive block clamp the conductive seat, and the first conductive block and the second conductive block are both connected to a power supply.

[0012] Preferably, the fixed connection row is provided with a plurality of first L-shaped insulating blocks connected in sequence, the first L-shaped insulating blocks including a first mounting plate and a first isolation plate connected to each other, the first mounting plate and the first isolation plate being perpendicular to each other; the first mounting plate is fixed to the fixed connection row, the first conductive block is mounted on the first mounting plate, and the first isolation plate is provided between two adjacent first conductive blocks;

[0013] The sliding connection row is provided with a plurality of second L-shaped insulating blocks connected in sequence, and the second L-shaped insulating blocks include a second mounting plate and a second isolation plate connected to each other, and the second mounting plate and the second isolation plate are perpendicular; the second mounting plate is fixed on the sliding connection row, and the second conductive block is mounted on the second mounting plate, and the second isolation plate is provided between two adjacent second conductive blocks.

[0014] Preferably, the first mounting plate and the fixed connection bar are respectively provided with first wire holes for wires to pass through;

[0015] The second mounting plate and the sliding connection row are both correspondingly provided with second wire holes for wires to pass through.

[0016] Preferably, the sliding connection row is slidably arranged on the guide slider.

[0017] Preferably, the heating module further comprises an insulating connecting plate, wherein the insulating connecting plate is located between the two conductive seats, and both ends of the insulating connecting plate are connected to the conductive seats.

[0018] Preferably, the heating module also includes an insulating isolation block, a fixing groove is provided on the first side of the conductive seat, the insulating isolation block is installed on the first side of the conductive seat, and a clamping hole connected to the fixing groove is provided on the insulating isolation block, the electric heating plate is installed between the two insulating isolation blocks, and the two ends of the electric heating plate are respectively installed in the clamping holes on the two insulating isolation blocks, and the end of the electric heating plate can pass through the clamping hole and be fixed in the fixing groove.

[0019] Preferably, the ends of the electric heating plates are connected to flexible metal plates, and the flexible connecting plates are located in the fixing grooves.

[0020] Preferably, the conductive seat is provided with a fastening hole connected to the fixing groove, the fastening hole is provided with an internal thread, and a fastener is provided in the fastening hole, and the fastener can be screwed into the fastening hole to make the flexible metal sheet fit the conductive seat.

[0021] Preferably, the driving device comprises: a telescopic mechanism and a sliding rod;

[0022] The sliding rod is connected to the telescopic mechanism, and the telescopic mechanism can drive the sliding rod to move;

[0023] The sliding rod is fixedly connected to the two sliding connection rows in the conductive module, and the fixed connection row and the insulating support plate are respectively provided with a through hole and a sliding groove for the sliding rod to pass through.

[0024] Preferably, the driving device further comprises a fixed limit block, and the limit block can limit the displacement of the sliding rod.

[0025] (3) Beneficial effects

[0026] The present invention first determines the specific number of heating modules on the conductive module and their positions on the conductive module based on the parts and number of workpieces to be welded. Furthermore, the heating temperature and heating time are controlled by a power supply. By powering different first and second conductive blocks at different times, the heating sequence can be automatically controlled. This allows for flexible heating of large quantities of workpieces, enabling the location, number, heating time, temperature, and heating sequence to be determined according to product process requirements, thereby improving heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 Schematic diagram of the overall structure of the heating device of the present invention;

[0028] Figure 2 It is a structural schematic diagram of the heating module in the present invention.

[0029] [Description of Reference Numerals]

[0030] 1: Conductive module; 10: Conductive unit; 11: Fixed connection row; 111: First conductive block; 112: First L-shaped insulating block; 113: First mounting plate; 114: First isolation plate; 12: Sliding connection row; 12: Second conductive block; 122: Second L-shaped insulating block; 123: Second mounting plate; 124: Second isolation plate; 13: Insulating support plate; 14: Guide slider;

[0031] 2: Heating module; 21: Conductive seat; 211: Fixing slot; 212: Fastening hole; 22: Electric heating plate; 23: Insulating connecting plate; 24: Insulating isolation block; 241: Clamping hole; 25: Flexible metal sheet;

[0032] 3: driving module; 31: telescopic mechanism; 32: sliding rod; 33: limiting block. DETAILED DESCRIPTION

[0033] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation methods in conjunction with the accompanying drawings.

[0034] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, the terms "first," "second," and so on, used in this disclosure are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this disclosure, "plurality" means at least two, such as two or three, unless otherwise specifically defined.

[0036] In the present invention, unless otherwise specified or limited, the terms "connection" and "fixation" should be understood in a broad sense. For example, "fixation" can mean fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0037] The present invention provides a heating device, which includes: a conductive module 1, a plurality of heating modules 2 and a driving module 3;

[0038] The conductive module 1 includes conductive units 10 arranged in pairs. The conductive units 10 include a fixed connection row 11 and a sliding connection row 12. The fixed connection row 11 is provided with a plurality of mutually independent first conductive blocks 111 in a linear array. The sliding connection row 12 is provided with a plurality of mutually independent second conductive blocks 121 in a linear array. The first conductive blocks 111 and the second conductive blocks 121 are arranged opposite each other, with an insulating support plate 13 disposed between them. The sliding connection row 12 can move toward the fixed connection row 11. In a preferred embodiment, the sliding connection row 12 is slidably mounted on a guide slider 14. The slider guides the movement of the sliding connection row 12.

[0039] The heating module 2 includes a pair of conductive seats 21 and an electric heating plate 22 connecting the two conductive seats 21; one conductive seat 21 in the heating module 2 is attached to the insulating support plate 13 of one conductive unit 10, and the other conductive seat 21 in the heating module 2 is attached to the insulating support plate 13 of the other conductive unit 10;

[0040] The driving module 3 is connected to the sliding connection row 12, and the driving module 3 can drive the sliding connection row 12 to move toward the fixed connection row 11, so that the first conductive block 111 and the second conductive block 121 clamp the conductive seat 21, and the first conductive block 111 and the second conductive block 121 are both connected to the power supply.

[0041] When in use, the heating device of the present invention comprises a conductive module 1 equipped with multiple heating modules 2, both of which are positioned below the workpiece to be heated. Specifically, the number and placement of heating modules 2 on the conductive module 1 are determined based on the number and location of the workpieces to be welded. The conductive module 1 supplies power to the heating modules 2, which then perform preheating on the workpiece.

[0042] In this application, the working process of a heating module 2 is described as an example. The two conductive seats 21 connected to the electric heating plate 22 on the heating module 2 are installed on the two conductive units 10, and the conductive blocks on the two conductive units 10 (the conductive blocks include a first conductive block 111 and a second conductive block 121. The first conductive block 111 and the second conductive block 121 on one conductive unit 10 are connected to the positive pole of the power supply, and the first conductive block 111 and the second conductive block 121 on the other conductive unit 10 are connected to the negative pole of the power supply.) are respectively connected to the positive and negative poles of the power supply. The driving module 3 is used to drive the second conductive block 121 to move toward the first conductive block 111, so that the conductive seats 21 at both ends of the electric heating plate 22 are clamped by the first conductive block 111 and the second conductive block 121. The current flows from one end of the electric heating plate 22 to the other end, and the electric heating plate 22 converts electrical energy into thermal energy to achieve heating of the workpiece. Since the sliding connection row 12 and the fixed connection row 11 in the present application are respectively provided with multiple independent first conductive blocks 111 and second conductive blocks 121, by using a power supply to energize a single first conductive block 111 and a second conductive block 121, it is possible to power a specific heating module 2. By powering different first conductive blocks 111 and second conductive blocks 121 at different times, it is possible to automatically control the heating timing. In addition, the heating temperature can be controlled by the power supply, and the heating time can be controlled by the power supply time. The position of each heating module 2 on the conductive module 1 is determined according to the position of the workpiece to be welded.

[0043] In summary, the present application can first determine the specific number of heating modules 2 on the conductive module 1 and the position of each heating module 2 on the conductive module 1 based on the location and number of the workpieces to be welded. In addition, the heating temperature and heating time are controlled by the power supply. By powering different first conductive blocks 111 and second conductive blocks 121 at different times, the heating sequence can be automatically controlled. When flexible heating of large quantities of workpieces is achieved, the location, number, heating time and temperature of the heating areas, and the heating sequence can be determined according to the product process requirements, thereby improving heating efficiency.

[0044] In the above solution, a control circuit can be provided between the heating module 2 and the power supply, and the power-on and power-on duration can be controlled by the external control circuit, thereby achieving flexibility in the heating time and heating sequence. Furthermore, in this application, the second conductive block 121 and the first conductive block 111 clamp the conductive base 21 in the driving module 3, ensuring that the heating device does not experience circuit disconnection after power is applied, thereby improving heating stability.

[0045] Furthermore, the fixed connection bar 11 is provided with a plurality of sequentially connected first L-shaped insulating blocks 112. These first L-shaped insulating blocks 112 include interconnected first mounting plates 113 and first isolation plates 114, which are perpendicular to each other. The first mounting plates 113 are fixed to the fixed connection bar 11, and the first conductive blocks 111 are mounted on the first mounting plates 113. The first isolation plates 114 are provided between two adjacent first conductive blocks 111. The first L-shaped insulating blocks 112 isolate the first conductive blocks 111 from the fixed connection bar 11, as well as from two adjacent first conductive blocks 111, ensuring the independence of each first conductive block 111 and enabling individual power supply to each first conductive block 111.

[0046] The sliding connection row 12 is equipped with a plurality of sequentially connected second L-shaped insulating blocks 122. These blocks 122 comprise interconnected second mounting plates 123 and second isolation plates 124, which are perpendicular to each other. The second mounting plates 123 are fixed to the sliding connection row 12, and the second conductive blocks 121 are mounted on the second mounting plates 123. A second isolation plate 124 is provided between two adjacent second conductive blocks 121. The second L-shaped insulating blocks 122 isolate the second conductive blocks 121 from the sliding connection row 12, as well as from two adjacent second conductive blocks 121. This ensures the independence of each second conductive block 121, allowing for individual power supply to each second conductive block 121.

[0047] Furthermore, first wire holes for the wires to pass through are correspondingly provided on the first mounting plate 113 and the fixed connection row 11. In a preferred technical solution, when conducting electricity to the first conductive block 111, the wires can be connected to the first conductive block 111 through the first wire holes on the first mounting plate 113 and the first wire holes on the fixed connection row 11. The specific connection method can be welding, clamping, or fixing on the first conductive block 111. In addition, the first mounting plate 113, the fixed connection row 11, and the first conductive block 111 can be connected together by fasteners. Specifically, internal threaded holes can be installed on the first mounting plate 113 and the fixed connection row 11, and then a through hole can be opened on the first conductive block 111. Then, a bolt or screw can be passed through the through hole and screwed into the internal threaded hole to realize the connection of the first mounting plate 113, the fixed connection row 11, and the first conductive block 111 into one. The wires can also be fixed to the first conductive block 111 with the bolts or screws. An internal thread can also be opened in the first wire hole, so that the first wire hole can not only install the first conductive block 111 on the first mounting plate 113 and the fixed connection row 11, but also allow the wire to pass through and be electrically connected to the first conductive block 111 through the fastener, thereby supplying power to the first conductive block 111.

[0048] Second wire holes for wires to pass through are correspondingly provided on the second mounting plate 123 and the sliding connection bar 12. The specific technical solution for the second conductive block 121, the second mounting plate 123, and the sliding connection bar 12 can adopt the solution described above for the first conductive block 111, the first mounting plate 113, and the sliding connection bar 12. The second wire holes can also adopt the solution described above for the first wire holes to achieve a fixed connection between the wires and the second conductive block 121, thereby providing power to the second conductive block 121.

[0049] In addition, the heating module 2 also includes an insulating connecting plate 23, which is located between the two conductive seats 21, and both ends of the insulating connecting plate 23 are connected to the conductive seats 21. Using an insulating connecting plate 23 to connect the two conductive seats 21 can make the two conductive seats 21 tightly connected together, and the heating module 2 becomes a whole. When the heating module 2 is transported (when the position of the heating module 2 on the conductive module 1 is transferred), the insulating connecting plate 23 can be clamped by a robot, making it easier for the robot to clamp and transport the heating module 2. In a preferred embodiment, the insulating connecting plate 23 is made of a material such as bakelite.

[0050] On the other hand, the heating module 2 also includes an insulating isolation block 24. A fixing groove 211 is provided on the first side of the conductive base 21. The insulating isolation block 24 is installed on the first side of the conductive base 21. The first side of the conductive base 21 is the side facing the workpiece, and the insulating isolation block 24 is provided with a clamping hole 241 connected to the fixing groove 211. The electric heating plate 22 is installed between the two insulating isolation blocks 24, and the two ends of the electric heating plate 22 are respectively installed in the clamping holes 241 on the two insulating isolation blocks 24. The end of the electric heating plate 22 can pass through the clamping holes 241 and be fixed in the fixing groove 211. In this solution, the electric heating plate 22 is installed in the fixing groove 211 through the clamping hole 241. This installation method can firmly realize the installation of the electric heating plate 22. In addition, the present application installs an insulating isolation block 24 on the first side of the conductive seat 21, and the height of the insulating isolation block 24 in the vertical direction is higher than the height of the electric heating plate 22 in the vertical direction. Since the heating module 2 and the conductive module 1 are both below the workpiece when the present application is in use, the insulating isolation block 24 isolates the heating module 2 from the workpiece to prevent the electric heating plate 22 from contacting and adhering to the workpiece during the actual heating process. The insulating isolation block 24 can be fixedly connected to the conductive seat 21 using a fastening plate. The specific connection method can be: one end of the fastening plate is fixedly connected to the conductive seat 21 through a fastener. The other end of the fastening plate is fixedly connected to the insulating isolation block 24 through a fastener.

[0051] Next, the ends of the electric heating sheet 22 are connected to the flexible metal sheet 25. The flexible metal sheet 25 and the electric heating sheet 22 are detachably connected, specifically by snap-fitting or other connection methods. The flexible metal sheet 25 is located in the fixing groove 211. The conductive base 21 is provided with a fastening hole 212 that communicates with the fixing groove 211. The fastening hole 212 is provided with an internal thread. A fastener is provided in the fastening hole 212. The fastener can be screwed into the fastening hole 212 to make the flexible metal sheet 25 fit the conductive base 21.

[0052] Finally, the drive device includes a telescopic mechanism 31 and a sliding rod 32. The sliding rod 32 is connected to the telescopic mechanism 31, which drives the sliding rod 32. The sliding rod 32 is fixedly connected to the two sliding connection rows 12 within the conductive module 1. The fixed connection rows 11 and the insulating support plate 13 are respectively provided with through holes and slots for the sliding rod 32 to pass through. The drive device also includes a fixed limit block 33 that limits the displacement of the sliding rod 32. In a preferred embodiment, the telescopic mechanism 31 can be a pneumatic cylinder.

[0053] It should be understood that the above description of the specific embodiments of the present invention is merely for the purpose of illustrating the technical approach and features of the present invention. Its purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. However, the present invention is not limited to the above-described specific embodiments. Any changes or modifications made within the scope of the claims of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A heating device, characterized in that: The heating device comprises: a conductive module (1), a plurality of heating modules (2) and a driving module (3); The conductive module (1) includes conductive units (10) arranged in pairs; each conductive unit (10) includes a fixed connection row (11) and a sliding connection row (12); a plurality of mutually independent first conductive blocks (111) are arranged in a linear array on the fixed connection row (11); a plurality of mutually independent second conductive blocks (121) are arranged in a linear array on the sliding connection row (12); the first conductive blocks (111) and the second conductive blocks (121) are arranged opposite to each other, an insulating support plate (13) is arranged between the first conductive blocks (111) and the second conductive blocks (121), and the sliding connection row (12) can move toward the fixed connection row (11); Each of the heating modules (2) comprises a pair of conductive seats (21) and an electric heating plate (22) connecting the two conductive seats (21); one of the conductive seats (21) in the heating module (2) is attached to the insulating support plate (13) of one of the conductive units (10), and the other of the conductive seats (21) in the heating module (2) is attached to the insulating support plate (13) of the other of the conductive units (10); The driving module (3) is connected to the sliding connection row (12), and the driving module (3) is used to drive the sliding connection row (12) to move toward the fixed connection row (11), so that the first conductive block (111) and the second conductive block (121) clamp the conductive seat (21), and the first conductive block (111) and the second conductive block (121) are both connected to a power source.

2. The heating device according to claim 1, wherein: A plurality of first L-shaped insulating blocks (112) connected in sequence are provided on the fixed connection row (11), the first L-shaped insulating blocks (112) comprising a first mounting plate (113) and a first isolation plate (114) connected to each other, the first mounting plate (113) and the first isolation plate (114) being perpendicular to each other; the first mounting plate (113) is fixed to the fixed connection row (11), the first conductive blocks (111) are mounted on the first mounting plate (113), and the first isolation plate (114) is provided between two adjacent first conductive blocks (111); The sliding connection row (12) is provided with a plurality of second L-shaped insulating blocks (122) connected in sequence, and the second L-shaped insulating blocks (122) include a second mounting plate (123) and a second isolation plate (124) connected to each other, and the second mounting plate (123) and the second isolation plate (124) are perpendicular to each other; the second mounting plate (123) is fixed to the sliding connection row (12), the second conductive block (121) is mounted on the second mounting plate (123), and the second isolation plate (124) is provided between two adjacent second conductive blocks (121).

3. The heating device according to claim 2, characterized in that The first mounting plate (113) and the fixed connection row (11) are correspondingly provided with first wire holes for wires to pass through; The second mounting plate (123) and the sliding connection row (12) are both correspondingly provided with second wire holes for wires to pass through.

4. The heating device according to claim 1, wherein The sliding connection row (12) is slidably arranged on the guide slider (14).

5. The heating device according to any one of claims 1 to 4, characterized in that The heating module (2) further comprises an insulating connecting plate (23), wherein the insulating connecting plate (23) is located between the two conductive seats (21), and both ends of the insulating connecting plate (23) are connected to the conductive seats (21).

6. The heating device according to claim 5, characterized in that The heating module (2) further includes an insulating isolation block (24), a fixing groove (211) is provided on the first side of the conductive base (21), the insulating isolation block (24) is mounted on the first side of the conductive base (21), and a clamping hole (241) communicating with the fixing groove (211) is provided on the insulating isolation block (24), the electric heating plate (22) is mounted between the two insulating isolation blocks (24), and both ends of the electric heating plate (22) are respectively mounted in the clamping holes (241) on the two insulating isolation blocks (24), and the end of the electric heating plate (22) passes through the clamping hole (241) and is fixedly mounted in the fixing groove (211).

7. The heating device according to claim 6, characterized in that The ends of the electric heating plates (22) are connected to flexible metal plates (25), and the flexible metal plates (25) are located in the fixing grooves (211).

8. The heating device according to claim 7, characterized in that The conductive seat (21) is provided with a fastening hole (212) in communication with the fixing groove (211), an internal thread is provided in the fastening hole (212), a fastener is provided in the fastening hole (212), and the fastener is screwed into the fastening hole (212) so that the flexible metal sheet (25) and the conductive seat (21) are fitted together.

9. The heating device according to any one of claims 1 to 4, characterized in that The driving module (3) comprises: a telescopic mechanism (31) and a sliding rod (32); The sliding rod (32) is connected to the telescopic mechanism (31), and the telescopic mechanism (31) is capable of driving the sliding rod (32) to move; The sliding rod (32) is fixedly connected to the two sliding connection rows (12) in the conductive module (1), and the fixed connection row (11) and the insulating support plate (13) are respectively provided with a through hole and a sliding groove for the sliding rod (32) to pass through.

10. The heating device according to claim 9, characterized in that The driving module (3) further comprises a fixedly arranged limit block (33), wherein the limit block (33) is capable of limiting the displacement of the sliding rod (32).

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