Electric cylinder type aluminum welding tool

Abstract

The utility model relates to an electric cylinder type aluminum welding tool which comprises an electric cylinder, an electric cylinder connecting mechanism, an electrode connecting mechanism, a positioning assembly, an electrode assembly and a temperature measuring mechanism. The electric cylinder connecting mechanism comprises an electric cylinder connector and a pressure sensor. The electrode connecting mechanism comprises a connecting block and a positioning shaft; the upper positioning block is provided with a clamping groove, and the positioning shaft is located in the clamping groove. The lower positioning block is connected with the electrode assembly; the electrode assembly comprises a graphite electrode, a coil mounting plate and a base plate; and a probe of the temperature measuring piece faces the graphite electrode. The device has the advantages that the electric cylinder is high in response speed and combined with the pressure sensor, the pressing distance precision is high, the pressure is high in speed and adjustable, and the aluminum welding precision is improved; the electrode assembly on the positioning assembly ascends and descends to achieve the positioning effect, and the precision of the pressure welding position of the upper electrode assembly is improved; the coil is used for electromagnetic heating, graphite has good high-temperature stability, the controllability of the heating temperature of aluminum is improved through the temperature measuring mechanism, bubbles generated by boiling of the aluminum due to too high heating temperature are reduced, and the welding quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to an electric cylinder type aluminum welding tool. Background Art

[0002] Conventional aluminum welding is performed by arc welding. When aluminum is heated and melted by electricity, it is easy to boil and produce bubbles, which affects the quality of the weld. Existing pressure welding equipment uses a cylinder or oil cylinder to raise and lower the upper electrode. Due to the poor accuracy of the lowering position of the upper electrode, after long-term use, the upper and lower electrodes will have position deviations. When aluminum welding small-sized workpieces, the welding material will be heated unevenly due to the welding position deviation, which will also cause a large number of bubbles in the weld.

[0003] Therefore, it is necessary to further improve the structure of aluminum welding equipment to alleviate the problem of a large number of bubbles in the aluminum welding weld. Utility Model Content

[0004] The utility model aims to provide an electric cylinder type aluminum welding tool, which can accurately control the welding temperature, reduce weld bubbles and improve welding efficiency.

[0005] In order to achieve the above-mentioned utility model object, the utility model provides an electric cylinder type aluminum welding tool, including an electric cylinder, an electric cylinder connecting mechanism, an electrode connecting mechanism, a positioning assembly, an electrode assembly, and a temperature measuring mechanism;

[0006] The electric cylinder connection mechanism includes an electric cylinder joint and a pressure sensor; the pressure sensor is connected between the electric cylinder joint and the output shaft of the electric cylinder;

[0007] The electrode connection mechanism comprises a connection block and a positioning shaft, wherein the connection block is connected to the lower part of the electric cylinder connection mechanism through the electric cylinder joint, and the positioning shaft is located at the bottom of the connection block;

[0008] The positioning assembly comprises an upper positioning block and a lower positioning block, an adjusting ball head is arranged between the upper positioning block and the lower positioning block; the upper positioning block is provided with a slot, the positioning shaft is located in the slot; the bottom of the lower positioning block is connected to the electrode assembly;

[0009] The electrode assembly includes a graphite electrode, a coil mounting plate, and a pad, wherein the graphite electrode is located on the top of the coil mounting plate, and the coil mounting plate is fixed on the pad; there are two electrode assemblies, which are arranged opposite to each other up and down, and the two electrode assemblies are an upper electrode assembly and a lower electrode assembly respectively;

[0010] The temperature measuring mechanism is disposed on the sides of the upper electrode assembly and the lower electrode assembly. The temperature measuring mechanism comprises a temperature measuring component, and the probe of the temperature measuring component faces the graphite electrode.

[0011] As a further improvement of the utility model, the electric cylinder connection mechanism also includes a dust cover, and the electric cylinder connector and the pressure sensor are located inside the dust cover.

[0012] As a further improvement of the utility model, the electrode connection mechanism also includes a connection shell and a guide rail assembly, the connection shell is vertically provided with a through groove, the connection block passes through the through groove and is connected to the connection shell through the guide rail assembly.

[0013] As a further improvement of the utility model, the electrode assembly also includes a fixing frame, and a slot is provided on the side of the graphite electrode. The fixing frame positions the graphite electrode on the top of the coil mounting plate through the slot.

[0014] As a further improvement of the utility model, a heat insulation plate is provided between the coil mounting plate and the pad.

[0015] As a further improvement of the utility model, the temperature measuring mechanism further comprises a position adjusting frame and a position adjusting slider, the position adjusting frame is provided with a guide rod, and the temperature measuring component is connected to the guide rod via the position adjusting slider.

[0016] Compared with the existing technology, the utility model electric cylinder aluminum welding tool has the following advantages:

[0017] (1) Compared with air cylinders or oil cylinders, electric cylinders have a faster response speed and can convert voltage signals into torque and speed. They can quickly switch the lifting and lowering of the output shaft. In combination with a pressure sensor, the electric cylinder can ensure that the upper electrode assembly is provided with stable pressure, high pressure distance accuracy, and high-speed adjustable pressure, thereby improving the precision and quality stability of aluminum welding.

[0018] (2) The positioning assembly plays a role in positioning the electrode connection mechanism and the lifting and lowering of the upper electrode assembly, thereby improving the accuracy of the pressure welding position of the upper electrode assembly;

[0019] (3) Through electromagnetic heating by coil, induction welding is performed using graphite electrodes. Graphite has good high-temperature stability, and the temperature measurement mechanism is used to improve the controllability of the temperature of the aluminum material when it is heated, reduce the bubbles generated by the boiling of the aluminum material when it is heated too high during aluminum welding, and improve the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the structure of the electric cylinder type aluminum welding tooling of the utility model;

[0021] Figure 2 It is a schematic diagram of the location structure of the temperature measuring mechanism;

[0022] Figure 3 This is a cross-sectional view of the electric cylinder aluminum welding tooling;

[0023] Figure 4It is a schematic diagram of the structure of the guide rail assembly;

[0024] Figure 5 is a schematic diagram of the electrode assembly structure;

[0025] Figure 6 It is a schematic diagram of the temperature measurement mechanism structure. DETAILED DESCRIPTION

[0026] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-3 As shown, the electric cylinder aluminum welding tool of the utility model comprises an electric cylinder 1, an electric cylinder connecting mechanism 2, an electrode connecting mechanism 3, a positioning assembly 4, an electrode assembly 5, and a temperature measuring mechanism 6;

[0028] The electric cylinder connection mechanism 2 includes an electric cylinder connector 21 and a pressure sensor 22;

[0029] A pressure sensor 22 is connected between the electric cylinder joint 21 and the output shaft of the electric cylinder 1. The electric cylinder 1 realizes the lifting and lowering of the output shaft of the electric cylinder 1 through the action of the motor. After the pressure sensor 22 is subjected to pressure, the pressure sensor 22 converts the force signal into an electrical signal and transmits it to the terminal computer. The terminal can display the pressure value, which is convenient for adjusting the pressure of the electric cylinder 1 on the electric cylinder joint 21. If the pressure on the pressure sensor 22 is too large, it can also be intuitively reflected on the terminal computer, which is convenient for the operator to promptly discover and repair the abnormal situation of the output of the electric cylinder 1, avoid affecting the welding quality, and ensure that the electric cylinder joint 21 is stably pressurized.

[0030] The electric cylinder connection mechanism 2 also includes a dust cover 23, and the electric cylinder connector 21 and the pressure sensor 22 are located in the dust cover 23. The dust cover 23 can isolate dust in the external environment and waste generated by the operation, and prevent the connection between the electric cylinder connector 21 and the pressure sensor 22 from being blocked, thereby affecting the output of the electric cylinder 1.

[0031] The electrode connection mechanism 3 includes a connection block 32 and a positioning shaft 33. The connection block 32 is connected to the bottom of the electric cylinder connection mechanism 2 through the electric cylinder joint 21. The positioning shaft 33 is located at the bottom of the connection block 32.

[0032] like Figure 4 As shown, the electrode connection mechanism 3 also includes a connection shell 31 and a guide rail assembly 34 . The connection shell 31 is vertically provided with a through groove 311 . The connection block 32 passes through the through groove 311 and is connected to the connection shell 31 through the guide rail assembly 34 .

[0033] The outer wall of the connecting shell 31 is connected to the welding frame, and the guide rail assembly 34 is a combination of existing linear guide rails and sliders. The connecting block 32 is guided by the guide rail assembly 34 to always rise and fall on the same straight line, further reducing the angular deflection of the connecting block 32.

[0034] The positioning assembly 4 includes an upper positioning block 41 and a lower positioning block 42, and an adjusting ball head 43 is provided between the upper positioning block 41 and the lower positioning block 42; the upper positioning block 41 is provided with a slot 44, and the positioning shaft 33 is located in the slot 44; the bottom of the lower positioning block 42 is connected to the electrode assembly 5;

[0035] like Figure 5 As shown, the electrode assembly 5 includes a graphite electrode 51, a coil mounting plate 53, and a pad 55. The graphite electrode 51 is located on the top of the coil mounting plate 53, and the coil mounting plate 56 is fixed on the pad 54. There are two electrode assemblies 5, and the two electrode assemblies 5 are arranged opposite to each other up and down, and the two electrode assemblies 5 are respectively an upper electrode assembly and a lower electrode assembly;

[0036] The electrode connection mechanism 3 plays a role of connection and transition between the electric cylinder 1 and the electrode assembly 5, thereby preventing the electric cylinder 1 and the electrode assembly 5 from being directly connected, which may lead to poor accuracy of the upper electrode pressing distance.

[0037] The positioning shaft 33 is positioned on the upper positioning block 41, the upper electrode assembly is connected to the lower positioning block 42, and the ball head 43 is adjusted to balance the position of the upper electrode assembly in a horizontal position to ensure that the upper electrode assembly and the lower electrode assembly always remain parallel after repeated operations, thereby ensuring the accuracy of the welding position. The upper positioning block 41 can also prevent the upper electrode assembly from deflecting due to the force of pressure welding when the upper electrode assembly is pressed down, resulting in a small angle deflection of the connecting block 32 when the electric cylinder joint 21 is raised and lowered, thereby affecting the service life of the electric cylinder 1.

[0038] The coil is arranged inside the coil mounting plate 53. When the coil is energized and heat-conducted, the welding function of the graphite electrode is realized. A heat insulation plate 54 is arranged between the coil mounting plate 53 and the pad 55. The heat insulation plate 54 can play a role of heat insulation to prevent the coil temperature from being too high and affecting the operation of other equipment.

[0039] The electrode assembly 5 also includes a fixing frame 56. A slot 52 is provided on the side of the graphite electrode 51. The fixing frame 56 positions the graphite electrode 51 on the top of the coil mounting plate 53 through the slot 52. Since the opposing surfaces of the graphite electrodes 51 of the upper and lower electrode assemblies 5 are welding surfaces, the side of the graphite electrode 51 is grooved and the electrode is installed through the fixing frame 56. This fixing structure avoids interference with the welding surface.

[0040] The sides of the upper electrode assembly and the lower electrode assembly are both provided with a temperature measuring mechanism 6, such as Figure 6 As shown, the temperature measuring mechanism 6 includes a temperature measuring element 61, and the probe of the temperature measuring element 61 faces the graphite electrode 51. The temperature measuring element 61 can be an existing infrared temperature measuring device, which measures the temperature near the two graphite electrodes 51 online in real time to avoid excessively high or low temperatures that affect welding quality.

[0041] The temperature measuring mechanism 6 also includes a positioning frame 62 and a positioning slider 64. The positioning frame 62 is provided with a guide rod 63. The temperature measuring component 61 is connected to the guide rod 63 through the positioning slider 64. The position of the temperature measuring component 61 is adjusted according to the temperature measurement position requirements by sliding the positioning slider 64.

[0042] The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all within the scope defined by the claims of this application.

Claims

1. Electric cylinder aluminum welding tool, characterized by: It includes an electric cylinder, an electric cylinder connecting mechanism, an electrode connecting mechanism, a positioning component, an electrode component, and a temperature measuring mechanism; The electric cylinder connection mechanism includes an electric cylinder joint and a pressure sensor; the pressure sensor is connected between the electric cylinder joint and the output shaft of the electric cylinder; The electrode connection mechanism comprises a connection block and a positioning shaft, wherein the connection block is connected to the lower part of the electric cylinder connection mechanism through the electric cylinder joint, and the positioning shaft is located at the bottom of the connection block; The positioning assembly comprises an upper positioning block and a lower positioning block, an adjusting ball head is arranged between the upper positioning block and the lower positioning block; the upper positioning block is provided with a slot, the positioning shaft is located in the slot; the bottom of the lower positioning block is connected to the electrode assembly; The electrode assembly includes a graphite electrode, a coil mounting plate, and a pad, wherein the graphite electrode is located on the top of the coil mounting plate, and the coil mounting plate is fixed on the pad; there are two electrode assemblies, which are arranged opposite to each other up and down, and the two electrode assemblies are an upper electrode assembly and a lower electrode assembly respectively; The temperature measuring mechanism is disposed on the sides of the upper electrode assembly and the lower electrode assembly. The temperature measuring mechanism comprises a temperature measuring component, and the probe of the temperature measuring component faces the graphite electrode.

2. The electric cylinder type aluminum welding tool as claimed in claim 1, characterized in that: The electric cylinder connection mechanism also includes a dust cover, and the electric cylinder joint and the pressure sensor are located inside the dust cover.

3. The electric cylinder type aluminum welding tool as claimed in claim 1, characterized in that: The electrode connection mechanism further comprises a connection shell and a guide rail assembly. The connection shell is vertically provided with a through slot, and the connection block passes through the through slot and is connected to the connection shell through the guide rail assembly.

4. The electric cylinder type aluminum welding tool as claimed in claim 1, characterized in that: The electrode assembly also includes a fixing frame, and a slot is provided on the side of the graphite electrode. The fixing frame positions the graphite electrode on the top of the coil mounting plate through the slot.

5. The electric cylinder type aluminum welding tool as claimed in claim 1, characterized in that: A heat insulation plate is provided between the coil mounting plate and the backing plate.

6. The electric cylinder type aluminum welding tool as claimed in claim 1, characterized in that: The temperature measuring mechanism further comprises a position adjusting frame and a position adjusting sliding block. The position adjusting frame is provided with a guide rod, and the temperature measuring element is connected to the guide rod via the position adjusting sliding block.

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