Digital intermediate frequency support projection welding machine

Abstract

The utility model provides a kind of digital intermediate frequency support projection welding machine, including machine body, machine head, the front of the machine body is fixedly connected with machine head, the top of the machine head is fixedly connected with cylinder, the front of the machine body is fixedly connected with lower seat.The utility model has the advantages that: design special adaptation steel pipe welding's positioning structure, by lower fixed plate, bracket, positioning plate, connecting rod and collar composition, steel pipe is directly placed on bracket and inserts collar in just can complete positioning, positioning is rapid, need not frequent adjustment, steel pipe after quick positioning can be directly welded, improve welding efficiency, simultaneously, using double upper electrode, double positioning structure, simultaneously can realize the welding of two steel pipes simultaneously, effectively improve the speed of production, the effect of collar, collar at the steel pipe outside to be welded, also can play fixed effect, prevent the movement or deformation of steel pipe in welding process, guarantee the accuracy and stability of welding position.

Description

Technical Field

[0001] This utility model relates to the field of projection welding machine technology, and in particular to a digital medium-frequency bracket projection welding machine. Background Technology

[0002] A projection welding machine is a welding device mainly used for welding two or more metal projections, such as projection welding of plates, nuts, screws, cross-wire projection welding, pipe projection welding, and T-type projection welding of plates. Projection welding machines utilize pneumatic pressurization and bearing guidance, featuring precise weld point control and excellent electrode follow-up. The welding process is automatically controlled by a microcomputer control box, ensuring precise weld point control and excellent electrode follow-up. It is widely used in multi-point projection welding and spot welding of automotive parts and other mechanical components.

[0003] In existing technologies, when welding pipes using projection welding machines, workers need to manually place the pipes onto the electrodes of the projection welding machine, manually adjust the posture of the pipes, and then remove the pipes after welding. This mechanism can only weld one pipe at a time, resulting in slow output speed. At the same time, the pipes need to be manually adjusted for positioning, which is inefficient. Therefore, a new digital medium-frequency support projection welding machine is proposed, which can greatly improve the output speed of pipe welding and adopt a new positioning mechanism to quickly position the pipes before welding. Utility Model Content

[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.

[0005] Therefore, one objective of this utility model is to propose a digital intermediate frequency bracket projection welding machine to solve the problems mentioned in the background art and overcome the shortcomings of the existing technology.

[0006] To achieve the above objectives, one embodiment of the present invention provides a digital intermediate frequency bracket projection welding machine, including a machine body and a machine head, wherein the machine head is fixedly connected to the front of the machine body and a cylinder is fixedly connected to the top of the machine head;

[0007] A lower seat is fixedly connected to the front of the machine body, and a connector is fixedly connected to the end of the cylinder output end and the top of the lower seat.

[0008] The bottom of the connector on the cylinder output end is detachably connected to an upper fixing plate, and the bottom of the upper fixing plate is fixedly connected to several upper electrodes.

[0009] The lower seat has a detachable lower fixing plate at the top of the connector, a bracket is fixedly connected to the top of the lower fixing plate, an end plate is fixedly connected to the top of the lower fixing plate, and positioning plates are fixedly connected to both sides of the lower seat connector.

[0010] A connecting rod is fixedly fastened to the positioning plate, and a collar is fixedly connected to the end of the connecting rod. A lower electrode is fixedly connected to the top of the lower fixing plate.

[0011] Preferably, in any of the above embodiments, the cylinder is installed vertically, and the surface of the connector is provided with a plurality of T-shaped grooves.

[0012] Using the above technical solution: This projection welding machine is specifically designed for welding steel pipes.

[0013] Preferably, in any of the above embodiments, the joint is connected to the upper fixing plate and the lower fixing plate by a T-bolt and a nut, wherein the T-bolt is located in the T-groove and the nut is threadedly connected to the T-bolt.

[0014] The core features of this device, using the above technical solution, are: simple operation, fast positioning speed, high welding efficiency, and fast output speed.

[0015] When this device is used, the steel pipe to be welded is placed in the bracket and inserted into the collar. The welding program is started, and the cylinder begins to pressurize, causing the upper electrode to apply pressure to the surface of the steel pipe. Through resistance heating, the surface of the steel pipe is locally heated to a melting state, forming a molten pool. While the molten pool is forming, the upper electrode continues to apply pressure, causing the metal materials in the molten pool to be squeezed together to form a welded joint. After welding is completed, the projection welding machine releases the pressure, and the welded steel pipe is taken out for inspection of the welding quality. If there are any problems, it can be repaired or re-welded.

[0016] Preferably, as described in any of the above schemes, the bottom surface of the upper electrode has a notch, and at least two upper electrodes are arranged side by side.

[0017] The core structure of this device, employing the above technical solution, consists of a connector, an upper fixing plate, an upper electrode, a lower fixing plate, a bracket, a positioning plate, a connecting rod, and a collar. The core advantages of this device are: a positioning structure specifically designed for steel pipe welding, comprising a lower fixing plate, a bracket, a positioning plate, a connecting rod, and a collar. The steel pipe is simply placed on the bracket and inserted into the collar to complete positioning quickly, eliminating the need for frequent adjustments. The quickly positioned steel pipe can then be directly welded, improving welding efficiency. Furthermore, the dual upper electrode and dual positioning structure allows for the simultaneous welding of two steel pipes, effectively increasing output speed.

[0018] The collar serves to fix the steel pipe to be welded, preventing it from moving or deforming during the welding process and ensuring the accuracy and stability of the welding position.

[0019] Preferably, the top surface of the bracket has an arc-shaped notch, as is preferred from any of the above solutions.

[0020] The above technical solution utilizes a microcomputer-controlled, digital projection welding machine. Furthermore, this machine employs medium-frequency inverter technology, which allows the welding transformer to operate at a frequency up to 1000Hz, different from the frequency of the industrial power grid. This technology concentrates the welding current, improving welding efficiency and quality.

[0021] Preferably, in any of the above embodiments, the connecting rod is fastened to the positioning plate by a washer and a nut, and one side of the collar is aligned with the notch of the bracket.

[0022] The lower electrode is located directly below the upper electrode.

[0023] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:

[0024] This digital medium-frequency bracket projection welding machine features a specially designed positioning structure for steel pipe welding, consisting of a joint, upper fixed plate, upper electrode, lower fixed plate, bracket, positioning plate, connecting rod, and collar. The steel pipe is simply placed on the bracket and inserted into the collar to complete the positioning process quickly without frequent adjustments. The steel pipe can then be directly welded after rapid positioning, improving welding efficiency. Furthermore, the dual upper electrode and dual positioning structure allows for the simultaneous welding of two steel pipes, effectively increasing output speed.

[0025] The collar serves to fix the steel pipe to be welded, preventing it from moving or deforming during the welding process and ensuring the accuracy and stability of the welding position.

[0026] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0028] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0029] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0030] Figure 3 This is a side view of the structure of this utility model;

[0031] Figure 4 This utility model Figure 1 A magnified structural diagram of point A in the middle.

[0032] In the diagram: 1-body, 2-head, 3-cylinder, 4-lower seat, 5-connector, 6-upper fixing plate, 7-upper electrode, 8-lower fixing plate, 9-bracket, 10-end plate, 11-positioning plate, 12-connecting rod, 13-ring, 14-lower electrode. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0034] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] like Figure 1-4 As shown, this digital intermediate frequency bracket projection welding machine includes a machine body 1 and a machine head 2. The machine head 2 is fixedly connected to the front of the machine body 1, and a cylinder 3 is fixedly connected to the top of the machine head 2.

[0036] The front of the machine body 1 is fixedly connected to the lower seat 4, and the end of the cylinder 3 output end and the top of the lower seat 4 are fixedly connected to the connector 5.

[0037] The bottom of the connector 5 on the output end of cylinder 3 is detachably connected to an upper fixing plate 6, and several upper electrodes 7 are fixedly connected to the bottom of the upper fixing plate 6.

[0038] The lower base 4 has a detachable lower fixing plate 8 at the top of the connector 5, a bracket 9 fixedly connected to the top of the lower fixing plate 8, an end plate 10 fixedly connected to the top of the lower fixing plate 8, and positioning plates 11 fixedly connected to both sides of the connector 5 of the lower base 4.

[0039] The positioning plate 11 is tightened with the inherent connecting rod 12, and the end of the connecting rod 12 is fixedly connected with a collar 13. The top of the lower fixing plate 8 is fixedly connected with the lower electrode 14.

[0040] Example 1: Cylinder 3 is installed vertically, and the surface of connector 5 has several T-slots. This projection welding machine is specifically designed for welding steel pipes. Connector 5 is connected to the upper fixing plate 6 and the lower fixing plate 8 by T-bolts and nuts, wherein the T-bolts are located in the T-slots, and the nuts are threadedly connected to the T-bolts.

[0041] Example 2: The bottom surface of the upper electrode 7 has a notch, and at least two upper electrodes 7 are arranged side by side. The top surface of the bracket 9 has an arc-shaped notch. This projection welding machine is a microcomputer-controlled, digital projection welding machine. Furthermore, this projection welding machine employs medium-frequency inverter technology, which enables the welding transformer to operate at a frequency up to 1000Hz, different from the frequency of the industrial power grid. This technology makes the welding current more concentrated, improving welding efficiency and quality.

[0042] Preferably, in any of the above embodiments, the connecting rod 12 is fastened to the positioning plate 11 by a washer and a nut, and one side of the collar 13 is aligned with the notch of the bracket 9. The lower electrode 14 is located directly below the upper electrode 7.

[0043] The working principle of this utility model is as follows:

[0044] Place the steel pipe to be welded in the bracket 9 and insert it into the collar 13. Start the welding program, and the cylinder 3 begins to pressurize, causing the upper electrode 7 to apply pressure to the surface of the steel pipe. The upper electrode 7, in conjunction with the lower electrode 14, uses resistance heating to locally heat the surface of the steel pipe to a molten state, forming a molten pool. While the molten pool is forming, the upper electrode 7 continues to apply pressure, causing the metal material in the molten pool to be squeezed together to form a welded joint. After welding is completed, the projection welding machine releases the pressure, removes the welded steel pipe, and inspects the welding quality. If there are any problems, they can be repaired or re-welded.

[0045] Compared with the prior art, the present invention has the following advantages:

[0046] This digital medium-frequency bracket projection welding machine, through the coordinated arrangement of connector 5, upper fixing plate 6, upper electrode 7, lower fixing plate 8, bracket 9, positioning plate 11, connecting rod 12, and collar 13, is designed with a positioning structure specifically adapted for steel pipe welding. It consists of lower fixing plate 8, bracket 9, positioning plate 11, connecting rod 12, and collar 13. The steel pipe can be directly placed on the bracket 9 and inserted into the collar 13 to complete the positioning. The positioning is quick and does not require frequent adjustments. The steel pipe after quick positioning can be directly welded, improving welding efficiency. At the same time, the structure of double upper electrode 7 and double positioning can realize the simultaneous welding of two steel pipes, effectively improving the output speed.

[0047] The function of the collar 13 is to fix the steel pipe outside the weld, prevent the steel pipe from moving or deforming during the welding process, and ensure the accuracy and stability of the welding position.

Claims

1. A digital intermediate frequency bracket projection welding machine, characterized in that, Includes a body (1) and a head (2), with the head (2) fixedly connected to the front of the body (1) and a cylinder (3) fixedly connected to the top of the head (2). The front of the body (1) is fixedly connected to a lower seat (4), and the end of the output end of the cylinder (3) and the top of the lower seat (4) are fixedly connected to a connector (5). The bottom of the connector (5) on the output end of the cylinder (3) is detachably connected to an upper fixing plate (6), and a number of upper electrodes (7) are fixedly connected to the bottom of the upper fixing plate (6). The lower seat (4) has a detachable lower fixing plate (8) on the top of the connector (5), a bracket (9) is fixedly connected to the top of the lower fixing plate (8), an end plate (10) is fixedly connected to the top of the lower fixing plate (8), and positioning plates (11) are fixedly connected to both sides of the connector (5) of the lower seat (4). The positioning plate (11) is tightened with a fixed connecting rod (12), and a collar (13) is fixedly connected to the end of the connecting rod (12). The bottom electrode (14) is fixedly connected to the top of the lower fixing plate (8).

2. The digital intermediate frequency bracket projection welding machine as described in claim 1, characterized in that: The cylinder (3) is installed vertically, and the surface of the connector (5) is provided with several T-shaped grooves.

3. A digital intermediate frequency bracket projection welding machine as described in claim 2, characterized in that: The connector (5) is connected to the upper fixing plate (6) and the lower fixing plate (8) by a T-bolt and a nut, wherein the T-bolt is located in the T-groove and the nut is threadedly connected to the T-bolt.

4. A digital intermediate frequency bracket projection welding machine as described in claim 3, characterized in that: The bottom surface of the upper electrode (7) is provided with a notch, and at least two upper electrodes (7) are arranged side by side.

5. A digital intermediate frequency bracket projection welding machine as described in claim 4, characterized in that: The top surface of the bracket (9) has an arc-shaped notch.

6. A digital intermediate frequency bracket projection welding machine as described in claim 5, characterized in that: The connecting rod (12) is fastened to the positioning plate (11) by a washer and a nut, and one side of the collar (13) is aligned with the notch of the bracket.

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