Rotating disc type welding device

Abstract

The utility model belongs to the technical field of welding equipment, and particularly relates to a rotating disc type welding device. The automatic welding device comprises an operation table, a rotary table, a welding machine, an ejection mechanism and a discharging mechanism. A plurality of sleeve holes are circumferentially formed in the rotary table at intervals, dies with the tops used for clamping workpieces are sleeved with the sleeve holes in a matched mode, and a driving mechanism installed on the operation table is arranged at the bottom of the rotary table to drive the rotary table to rotate; the welding machine is arranged on the operation table, and a welding ring extending to the position above the sleeve hole is arranged on the welding machine; the ejection mechanism is arranged on the operation table, located below the sleeve hole opposite to the welding ring and used for ejecting the mold in the sleeve hole upwards. The discharging mechanism is arranged on the ejection mechanism and located on the downstream side of the rotating direction of the rotating disc and used for clamping out the workpieces welded through the welding ring. The welding device is used for solving the problems of low welding efficiency and poor consistency.

Description

Technical Field

[0001] The utility model belongs to the technical field of welding equipment, and particularly relates to a rotary welding device. Background Art

[0002] A gas thermocouple is an important component in a gas appliance, which has a flameout protection function. When the gas burns, the thermocouple generates a thermoelectromotive force due to heat, maintaining the opening of the gas passage. Once the flame accidentally goes out, the temperature of the thermocouple drops rapidly, the thermoelectromotive force decreases, resulting in the closing of the gas valve, preventing the gas from continuing to leak, ensuring the use safety. At the same time, it can also stably burn, sense the change of the flame temperature in real time, and feedback this change to the control system, which helps to adjust the gas supply and make the combustion more stable.

[0003] Currently, the hot electrode and the copper seat in the gas thermocouple usually need to be fixed by welding. During welding, the hot electrode and the copper seat are clamped by a clamping fixture and sent into the high-frequency welding coil of the high-frequency welding machine for welding. However, this traditional manual welding cannot ensure the consistency of welding, and there are situations of over-welding and lack of welding defects. Moreover, the welding efficiency of this manual feeding welding method is relatively low. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a rotary welding device for solving the problems of low welding efficiency and poor consistency.

[0005] The technical solution for the utility model to solve the above technical problems is as follows: A rotary welding device, which includes: an operating table;

[0006] A turntable, on which a number of sets of holes are circumferentially spaced. A mold for clamping a workpiece at the top is matingly sleeved in the set of holes. A driving mechanism installed on the operating table is provided at the bottom of the turntable to drive the turntable to rotate;

[0007] A welding machine is arranged on the operating table, and a welding coil extending above the set of holes is provided on the welding machine;

[0008] An ejecting mechanism is arranged on the operating table, below the set of holes opposite to the welding coil, for ejecting the mold in the set of holes upward;

[0009] A discharging mechanism is arranged on the downstream side of the ejecting mechanism in the rotation direction of the turntable for clamping out the workpiece welded by the welding coil.

[0010] Compared with the prior art, the above technical solution has the following beneficial effects:

[0011] Using a turntable and a mold sleeved in a socket hole, the turntable can drive the mold to rotate and sequentially correspond to the welding rings above the mold. The ejection mechanism can eject the mold sleeved in the socket hole, extend the workpiece at the top of the mold into the welding ring above for heating and welding. The unloading mechanism located downstream can clamp out the welded workpiece. The whole process is automatic and efficient, and the welding consistency is good.

[0012] Based on the above technical solution, the embodiment of the present application can also be improved as follows:

[0013] In one embodiment, the ejection mechanism includes:

[0014] A double-headed driving cylinder, vertically arranged on the operating table;

[0015] A top block, installed at the first driving end of the double-headed driving cylinder, and the top block is arranged opposite to the bottom of the mold;

[0016] A limiting sleeve, sleeved on the second driving end of the double-headed driving cylinder penetrating through the operating table.

[0017] In one embodiment, an external thread is formed on the second driving end of the double-headed driving cylinder, and a limiting nut abutted against the end of the limiting sleeve is screwed on the external thread to adjust the position of the limiting sleeve.

[0018] In one embodiment, the mold includes:

[0019] An upper die head, a positioning hole for placing a workpiece is opened at the top of the upper die head;

[0020] A lower die head, connected below the upper die head, and the lower die head is slidably sleeved in the socket hole;

[0021] A limiting hoop, fixed between the upper die head and the lower die head, and the limiting hoop is limited to the upper surface of the socket hole.

[0022] In one embodiment, a lifting mechanism is further included and arranged on the operating table. The lifting mechanism is arranged at the bottom of the welding machine. The lifting mechanism includes:

[0023] A plurality of guide rods, one ends of the plurality of guide rods are connected with a support plate supporting the bottom of the welding machine, and the other ends of the guide rods penetrate through the operating table;

[0024] A lift, installed on the operating table, and the output end of the lift is connected to the bottom of the support plate.

[0025] In one embodiment, a support spring is sleeved on the guide rod, one end of the support spring abuts against the support plate, and the other end abuts against the operating table.

[0026] In one embodiment, the unloading mechanism includes:

[0027] Support columns;

[0028] A first cylinder, horizontally fixed on the support column;

[0029] A second cylinder, vertically fixed on the output end of the first cylinder;

[0030] A jaw cylinder, fixed on the output end of the second cylinder.

[0031] In one embodiment, it further includes a second sensor, and the sensing end of the second sensor is disposed opposite to the workpiece on the mold below the unloading mechanism.

[0032] In one embodiment, the driving mechanism is a brake motor, which is used to drive the molds on the turntable to correspond to the welding ring and the unloading mechanism in sequence. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0035] Figure 2 It is Figure 1 a front view structural schematic diagram of

[0036] Reference numerals:

[0037] 1, operating table; 2, turntable; 3, sleeve hole; 4, mold;

[0038] 401, upper die head; 402, lower die head; 403, limiting hoop; 404, positioning hole;

[0039] 5, driving mechanism; 6, welder; 7, welding ring;

[0040] 8, ejecting mechanism; 801, double-headed driving rod; 802, ejecting block; 803, limiting sleeve; 804, limiting nut;

[0041] 9, unloading mechanism; 901, support column; 902, first cylinder; 903, second cylinder; 904, jaw cylinder;

[0042] 10. Lifting mechanism; 1001. Guide rod; 1002. Support plate; 1003. Lift; 1004. Support spring;

[0043] 11. First sensor; 12. Second sensor; 13. Induction ring; 14. Induction protrusion. Specific embodiments

[0044] The embodiments of the technical solution of the present utility model will be described in detail below with reference to the drawings. The following embodiments are only used to illustrate the technical solution of the present utility model more clearly, so they are only examples and cannot be used to limit the protection scope of the present utility model.

[0045] It should be noted that unless otherwise specified, the technical terms or scientific terms used in this application should have the ordinary meaning understood by those skilled in the art to which the present utility model belongs.

[0046] In the description of this application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.

[0047] In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. In the description of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0048] In this application, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0049] As Figure 1-2 shown, a turntable type welding device provided by the present utility model includes: an operation table, a turntable, a welding machine, an ejection mechanism and a discharging mechanism. The welding machine, the ejection mechanism and the discharging mechanism are installed on the operation table, and the turntable is suspended on the operation table through a driving mechanism.

[0050] A number of sets of holes are circumferentially spaced on the turntable. The sets of holes penetrate through the turntable evenly at circumferential intervals. A bushing matching the mold is installed in the sets of holes. A mold for clamping the workpiece at the top is fitted and connected in the sets of holes. Through the contact between the bushing and the mold, it is convenient for the mold to slide up and down in the sets of holes. A driving mechanism installed on the operating table is provided at the bottom of the turntable to drive the turntable to rotate. The driving mechanism is a brake motor, which is used to drive the molds on the turntable to correspond to the welding ring and the unloading mechanism in turn, that is, the driving mechanism drives the molds on the turntable to rotate circumferentially in a step-by-step manner, and a driving motor with a brake can better achieve this action.

[0051] The welding machine is arranged on the operating table. The welding machine can be a high-frequency welding machine. A welding ring extending above the sets of holes is arranged on the welding machine. Heat is generated by the principle of current thermal effect to weld the workpiece; the ejection mechanism is arranged on the operating table, below the sets of holes opposite to the welding ring. Since the welding ring keeps its position unchanged, the ejection mechanism is used to eject the mold in the sets of holes upward, so that the workpiece at the top of the mold extends into the welding ring, and the welding ring heats and welds.

[0052] The unloading mechanism is arranged on the downstream side of the ejection mechanism in the rotation direction of the turntable, and is used to clamp out the workpiece welded by the welding ring, that is, when the upstream welding ring and the ejection mechanism cooperate to complete the welding of the workpiece, the turntable rotates to rotate the upstream mold to the unloading mechanism, and the unloading mechanism clamps the welded workpiece from the mold and sends it to the next process.

[0053] By using the turntable and the mold sleeved in the sets of holes, the turntable can drive the mold to rotate and correspond to the welding ring above the mold in turn. The ejection mechanism can eject the mold sleeved in the sets of holes, and the workpiece at the top of the mold extends into the upper welding ring for heating and welding. The unloading mechanism located downstream can clamp out the welded workpiece. The whole process is automatic and efficient, and the consistency of welding is good.

[0054] Among them, the ejection mechanism includes: a double-headed driving cylinder, a top block and a limit sleeve.

[0055] The double-headed driving cylinder is vertically arranged on the operating table. The double-headed driving cylinder can be a double-headed air cylinder, etc. Specifically, it is arranged below the mold in the sets of holes corresponding to the welding ring. The double-headed driving cylinder is fixed on the operating table. The second end of the double-headed driving cylinder penetrates through the operating table and is fixed on the operating table. The top block is installed at the first driving end of the double-headed driving cylinder. The top block is arranged opposite to the bottom of the mold. When moving upward, the top block ejects the mold. The limit sleeve is sleeved on the second driving end of the double-headed driving cylinder penetrating through the operating table. The top of the limit sleeve is spaced from the bottom surface of the operating table. When moving upward, the top of the limit sleeve abuts against the bottom surface of the operating table. At this time, it plays a role in restricting the upward movement of the piston rod in the double-headed driving cylinder and plays a limiting role.

[0056] To achieve the function of adjustable limit height of the limit sleeve, an external thread is formed on the second driving end of the double-headed driving cylinder, and a limit nut that abuts against the end of the limit sleeve is screwed onto the external thread to adjust the position of the limit sleeve. When the limit nut moves upward, it drives the limit sleeve to move upward, reducing the upward stroke of the piston rod. Thus, by changing the positions of the limit nut and the limit sleeve on the second driving end, the ejection height of the ejection mechanism is changed to be applicable to workpieces of different specifications.

[0057] Specifically, the mold includes: an upper die head, a lower die head, and a limit hoop.

[0058] A positioning hole for placing the workpiece is provided at the top of the upper die head. The lower die head is connected below the upper die head and integrally formed with the upper die head. The lower die head is slidably sleeved in the sleeve hole. The lower die head functions to match the sleeve hole and slide therein. The limit hoop is fixed between the upper die head and the lower die head. The limit hoop is limited to the upper surface of the sleeve hole. When the mold is placed in the sleeve hole, the limit hoop is stuck on the upper surface of the sleeve hole to prevent the whole mold from falling and slipping out of the sleeve hole.

[0059] In this embodiment, a lifting mechanism is further included and is arranged at the bottom of the welding machine on the operating table to lift the height of the welding machine. Specifically, the lifting mechanism includes: four guide rods and a lifter.

[0060] One end of the four guide rods is connected with a support plate that supports the bottom of the welding machine, that is, four guide rods are installed at the bottom of the support plate. The other end of the guide rod passes through the operating table to limit the movement of the support plate in the up and down directions. The lifter is installed on the operating table. The output end of the lifter is connected to the bottom of the support plate. By the lifter, the height of the support plate is lifted or lowered, and then the height of the welding machine is lifted or lowered to control the height position of the welding ring. Among them, the lifter can be realized by a hand-cranked lifter. The hand-cranked lifter is installed at the bottom of the operating table. The lifting rod passes through the operating table and is connected to the bottom of the support plate. The hand crank extends out of the operating table.

[0061] Specifically, a support spring is sleeved on the guide rod. One end of the support spring abuts against the support plate, and the other end abuts against the operating table to facilitate the support spring to play a supporting role.

[0062] In this embodiment, the unloading mechanism includes: a support column, a first cylinder, a second cylinder, and a jaw cylinder.

[0063] The support column is fixed on the operating table. The first cylinder is horizontally fixed on the support column, and the second cylinder is vertically fixed on the output end of the first cylinder. The first cylinder can drive the second cylinder to move horizontally and laterally, reciprocating between the position above the mold on the turntable and the subsequent conveying process outside the turntable. The jaw cylinder is fixed on the output end of the second cylinder. The second cylinder can drive the jaw cylinder to move up and down, moving down when above the mold, clamping the workpiece and then moving up. After that, the first cylinder translates outside the turntable, the jaw cylinder releases, and transports the welded workpiece to the subsequent conveying process, and so on in a cycle.

[0064] An induction ring is provided on the transmission shaft of the driving mechanism. Specifically, the induction ring is provided on the laterally protruding part of the transmission shaft. The induction ring is provided with induction protrusions. A first sensor is provided on the outer periphery of the induction ring. The sensing end of the first sensor is arranged opposite to the induction ring. The first sensor cooperates with the driving mechanism, unloading mechanism and ejecting mechanism at the bottom of the turntable to realize automatic rotational positioning for loading, lifting for welding, clamping and unloading and other operations.

[0065] When the first sensor receives the induction protrusion on the induction ring after it rotates one circle, it sends a braking signal, and the turntable rotates by an angle corresponding to one grid. Specifically, the driving mechanism is controlled to stop and lock the position through this braking signal. At this time, the mold in the welding circle on the turntable moves to the position below the unloading mechanism, and at the same time, a mold upstream of the welding circle position moves to the welding circle position.

[0066] At the same time, through the cooperation of the first sensor and the driving mechanism, the turntable can be made to move automatically by one grid intermittently. Workers only need to continuously place workpieces into the mold. On the other hand, the driving mechanism can also be controlled by a foot switch to drive the turntable to rotate one grid at a time to meet the needs of novice operators.

[0067] It further includes a second sensor. The second sensor is a counting sensor. The sensing end of the second sensor is arranged opposite to the workpiece on the mold below the unloading mechanism. The second sensor is fixed on the support column through a bracket. Each time the sensing end passes a workpiece, the count is incremented by one to count the number of welded workpieces.

[0068] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rotary welding device, characterized in that, Comprising: Operating table; Rotary table, on which a number of sets of holes are circumferentially spaced, and in each set of holes, a mold for clamping a workpiece at the top is fitted, and a driving mechanism installed on the operating table is provided at the bottom of the rotary table to drive the rotary table to rotate; Welding machine, arranged on the operating table, and a welding ring extending above the set of holes is provided on the welding machine; Ejecting mechanism, arranged on the operating table, below the set of holes opposite to the welding ring, for ejecting the mold in the set of holes upward; Unloading mechanism, arranged on the downstream side of the ejecting mechanism in the rotation direction of the rotary table, for clamping out the workpiece welded by the welding ring.

2. The rotary welding device according to claim 1, characterized in that, The ejecting mechanism includes: Double-headed driving cylinder, vertically arranged on the operating table; Ejecting block, installed at the first driving end of the double-headed driving cylinder, and the ejecting block is arranged opposite to the bottom of the mold; Limit sleeve, sleeved on the second driving end of the double-headed driving cylinder penetrating through the operating table.

3. The rotary welding device according to claim 2, wherein External threads are formed on the second driving end of the double-headed driving cylinder, and a limit nut abutted against the end of the limit sleeve is screwed on the external threads to adjust the position of the limit sleeve.

4. The rotary welding device according to claim 1, characterized in that, The mold includes: Upper mold head, on the top of which a positioning hole for placing a workpiece is provided; Lower mold head, connected below the upper mold head, and the lower mold head is slidably sleeved in the set of holes; Limit hoop, fixed between the upper mold head and the lower mold head, and the limit hoop is limited to the upper surface of the set of holes.

5. The rotary welding device according to claim 1, characterized in that, An elevating mechanism is further provided on the operating table, the elevating mechanism is arranged at the bottom of the welding machine, and the elevating mechanism includes: A number of guide rods, one end of each of the number of guide rods is connected with a support plate supporting the bottom of the welding machine, and the other end of the guide rod passes through the operating table; Elevator, installed on the operating table, and the output end of the elevator is connected with the bottom of the support plate.

6. The rotary welding device according to claim 5, wherein, A support spring is sleeved on the guide rod, one end of the support spring abuts against the support plate, and the other end abuts against the operating table.

7. The rotary welding device according to claim 1, wherein The unloading mechanism includes: Support column; First cylinder, horizontally fixed on the support column; Second cylinder, vertically fixed on the output end of the first cylinder; Claw cylinder, fixed on the output end of the second cylinder.

8. The rotary welding device according to claim 1, wherein An induction ring is provided on the transmission shaft of the driving mechanism, induction protrusions are provided on the induction ring, a first sensor is provided on the outer periphery of the induction ring, and the sensing end of the first sensor is arranged opposite to the induction ring.

9. The rotary welding device according to claim 1, characterized in that, A second sensor is further included, and the sensing end of the second sensor is arranged opposite to the workpiece on the mold below the unloading mechanism.

10. The rotary welding device according to claim 1, characterized in that, The driving mechanism is a brake motor, used to drive the molds on the rotary table to correspond to the welding ring and the unloading mechanism in sequence.

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