A positioning member and a welding device with positioning function

Abstract

The utility model relates to welding technical field, concretely relates to a positioning piece including annular body, annular body presents hollow's columnar structure, the inner peripheral wall of annular body is equipped with lug, and the inner peripheral wall of lug and annular body surrounds and sets into the accommodation groove. The positioning piece is simple in structure, and the positioning piece is used in cooperation with the embracing electrode in the welding device, and the upper cover is positioned and fixed. And the welding device with positioning function includes upper die and the electrode holder located below the upper die, the upper portion of electrode holder is provided with the through groove that communicates with the upper die, and the upper die includes the positioning piece and the embracing electrode, and the embracing electrode presents hollow's columnar structure, and the lower part of embracing electrode is placed in the accommodation groove, wherein, the outer peripheral edge area of the lower end surface of embracing electrode abuts against the upper end surface of lug, and the inner peripheral edge area of the lower end surface of embracing electrode protrudes the outer edge of lug along the radial direction of embracing electrode, and the inner peripheral edge area of the lower end surface of embracing electrode and the inner peripheral wall of lug surround and set into the limiting groove, and the inner edge of embracing electrode is arranged in the circular arc.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, specifically to a positioning component and a welding device with positioning function. Background Technology

[0002] Resistance welding is a method of welding workpieces by applying pressure through electrodes after assembling them and utilizing the resistance heat generated by the current flowing through the contact surface and adjacent areas of the joint. Resistance welding utilizes the resistance heat effect generated by the current flowing through the contact surface and adjacent areas of the workpieces to heat them to a molten or plastic state, thereby forming a metallic bond.

[0003] The upper cover 5 of the air conditioner compressor and the liquid receiver, along with the cylinder 6, are all welded, particularly using resistance welding. And as... Figure 1 As shown, each of the upper covers 5 includes a cover body 51 and an extension 52 located on the outer peripheral edge of the lower part of the cover body 51. The connection between the cover body 51 and the extension 52 is arc-shaped. The extension 52 is used for welding the cover body 51 to the cylinder 6 during electric welding. During welding, resistance welding requires the electrodes to apply a certain pressure to ensure good contact. However, existing technologies usually clamp the upper cover 5 to achieve a fixed function, which often causes the upper cover 5 to shift from the cylinder 6, resulting in a higher probability of defective products. Summary of the Invention

[0004] To overcome the shortcomings and deficiencies of existing technologies, the purpose of this utility model is to provide a positioning component with a simple structure. The positioning component works in conjunction with the circumferential electrode in the welding device to position and fix the upper cover. A welding device with positioning function is provided by setting the inner edge of the circumferential electrode arc to position it with the arc edge of the upper cover, and a positioning component is also provided. This makes the lower end face of the circumferential electrode and the inner peripheral wall of the positioning component form a limiting groove. The edge of the upper cover abuts against the inner peripheral wall of the positioning component, preventing the upper cover from shifting from the cylinder body when pressure is applied during resistance welding, thus achieving the positioning and fixing function.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] This utility model provides a positioning component, including an annular body. The annular body has a hollow columnar structure, and the inner peripheral wall of the annular body is provided with a protrusion. The protrusion and the inner peripheral wall of the annular body form a receiving groove.

[0007] This utility model also provides a welding device with a positioning function, including an upper mold and an electrode seat located below the upper mold. The upper part of the electrode seat has a through groove communicating with the upper mold. The upper mold includes the aforementioned positioning element and a circumferential electrode. The circumferential electrode has a hollow columnar structure. The lower part of the circumferential electrode is placed in a receiving groove. The outer peripheral edge region of the lower end face of the circumferential electrode abuts against the upper end face of the protrusion. The inner peripheral edge region of the lower end face of the circumferential electrode protrudes radially from the outer edge of the protrusion. The inner peripheral edge region of the lower end face of the circumferential electrode and the inner peripheral wall of the protrusion form a limiting groove. The inner edge of the circumferential electrode is arc-shaped.

[0008] Furthermore, the upper mold also includes a positioning component, which is located at the upper end of the annular body. The positioning component is circumferentially disposed on the outside of the circumferential electrode, and the inner peripheral wall of the positioning component has a groove communicating with the receiving groove. The outer wall of the circumferential electrode is placed in the groove.

[0009] Furthermore, the positioning component includes a positioning ring and an insulating block, which are arranged circumferentially from top to bottom on the outer side of the circumferential electrode, and the groove passes through the inner peripheral wall of the positioning ring and the inner peripheral wall of the insulating block from top to bottom.

[0010] Furthermore, the upper end face of the positioning ring is provided with a slot communicating with the through groove, and the outer peripheral wall of the upper part of the circumferential electrode extends into the slot with a locking block, which engages with the slot.

[0011] Furthermore, the welding device with positioning function also includes a first fastener, the circumferential electrode has a mounting hole, the positioning component has a connecting hole communicating with the mounting hole, and one end of the first fastener passes through the connecting hole and is fixedly connected to the mounting hole.

[0012] Furthermore, the welding device with positioning function also includes a drive assembly, which is used to drive the upper mold to move downward until it abuts against the motor base.

[0013] Furthermore, the welding device is used for welding and forming compressors or liquid receivers in refrigeration and air conditioning system pipelines.

[0014] The beneficial effects of this utility model are as follows: The positioning component of this utility model is used in a welding device. It has a simple structure and works in conjunction with the circumferential electrode in the welding device to position and fix the upper cover. The welding device with positioning function is used for welding air conditioning compressors and liquid receivers. During use, when the circumferential electrode falls, the cover of the upper cover is placed in the hollow part of the circumferential electrode, and the inner arc edge of the circumferential electrode abuts against the arc of the upper cover, achieving arc positioning. Simultaneously, the extension of the upper cover is placed in a limiting groove, and the edge of the extension abuts against the inner peripheral wall of the protrusion in the positioning component, thus limiting the upper cover and ensuring a stable abutment between the upper cover and the cylinder. This utility model, by setting the inner arc edge of the circumferential electrode to position it against the arc edge of the upper cover, also provides a positioning component, ensuring that the extension of the upper cover is placed in the limiting groove, and the edge of the extension abuts against the inner peripheral wall of the positioning component. This prevents the upper cover from shifting from the cylinder when pressure is applied during resistance welding, thus achieving a positioning and fixing function. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the liquid reservoir.

[0016] Figure 2 This is a structural schematic diagram of the positioning component.

[0017] Figure 3 This is a schematic diagram of the upper mold structure.

[0018] Figure 4 This is a schematic diagram of a welding device with positioning function.

[0019] Figure 5 This is a schematic diagram of the ring-shaped structure.

[0020] The reference numerals in the figures include:

[0021] 1. Electrode holder; 11. Through groove; 2. Encircling electrode; 21. Locking block; 3. Limiting groove; 4. Positioning assembly; 41. Positioning ring; 411. Locking groove; 42. Insulating block; 43. Groove; 5. Top cover; 51. Cover body; 52. Extension; 6. Cylinder body; 7. Annular body; 71. Protrusion; 72. Receiving groove. Detailed Implementation

[0022] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to embodiments and accompanying drawings. The content mentioned in the embodiments is not intended to limit the present invention.

[0023] Example 1

[0024] like Figure 2As shown, a positioning component includes an annular body 7, which has a hollow columnar structure and is used to place the upper cover 5 of a liquid reservoir. The inner peripheral wall of the annular body 7 is provided with a protrusion 71, and the protrusion 71 and the inner peripheral wall of the annular body 7 form a receiving groove 72.

[0025] The positioning component provided in this embodiment is used in a welding device, especially in a resistance welding device, in conjunction with the circumferential electrode 2 in the welding device. The circumferential electrode 2 is placed in the receiving groove 72, that is, the annular body 7 surrounds the outside of the circumferential electrode 2. The outer peripheral edge area of ​​the lower end face of the circumferential electrode 2 abuts against the upper end face of the protrusion 71. The inner peripheral edge area of ​​the lower end face of the circumferential electrode 2 and the inner peripheral wall of the protrusion 71 form a limiting groove 3. The cover body 51 of the upper cover 5 is placed in the hollow part of the circumferential electrode 2. The extension 52 of the upper cover 5 is placed in the limiting groove 3, and the edge of the extension 52 abuts against the inner peripheral wall of the protrusion 71, thereby limiting the upper cover 5 and making the upper cover 5 firmly abut against the cylinder 6. The upper cover 5 of the air conditioning compressor and the liquid receiver is stably fixed, avoiding the upper cover 5 from shifting from the cylinder 6 when pressure is applied during resistance welding, thus playing a positioning and fixing role.

[0026] Example 2

[0027] like Figure 1-5 As shown, a welding device with positioning function includes an upper mold and an electrode seat 1 located below the upper mold. The upper part of the electrode seat 1 has a through groove 11 communicating with the upper mold. The upper mold includes the positioning element as described in the claim and a circumferential electrode 2. The circumferential electrode 2 has a hollow columnar structure. The lower part of the circumferential electrode 2 is placed in a receiving groove 72. The outer peripheral edge region of the lower end face of the circumferential electrode 2 abuts against the upper end face of the protrusion 71. The inner peripheral edge region of the lower end face of the circumferential electrode 2 protrudes radially from the outer edge of the protrusion 71. The inner peripheral edge region of the lower end face of the circumferential electrode 2 and the inner peripheral wall of the protrusion 71 form a limiting groove 3. The inner edge of the circumferential electrode 2 is arc-shaped.

[0028] In this embodiment, the through groove 11 extends from top to bottom through the upper mold and is used to place the cylinder 6. The curvature of the inner arc edge of the circumferential electrode 2 matches the curvature of the arc connection point of the upper cover 5.

[0029] The welding device with positioning function of this utility model is used for welding liquid storage tanks. When the circumferential electrode 2 falls, the cover body 51 of the upper cover 5 is placed in the hollow part of the circumferential electrode 2, and the inner arc edge of the circumferential electrode 2 abuts against the arc of the upper cover 5 to achieve arc positioning. At the same time, the extension part 52 of the upper cover 5 is placed in the limiting groove 3, and the edge of the extension part 52 abuts against the inner peripheral wall of the positioning component 4, thereby limiting the upper cover 5 and making the upper cover 5 and the cylinder 6 firmly abut against each other. This invention, by setting the inner edge of the arc of the encircling electrode 2, positions it against the arc edge of the upper cover 5, and also sets a positioning component, so that the extension 52 of the upper cover 5 is placed in the limiting groove 3, and the edge of the extension 52 abuts against the inner peripheral wall of the protrusion 71, i.e. the outer periphery of the encircling electrode 2, for connection with the positioning component. The inner periphery of the encircling electrode 2 abuts against the arc of the upper cover 5 to achieve arc positioning, and the inner peripheral wall of the protrusion 71 abuts against the edge of the extension 52 of the upper cover 5 to limit the upper cover 5. The structure is ingenious and avoids the upper cover 5 from shifting from the cylinder 6 when pressure is applied during resistance welding, thus playing a role in positioning and fixing.

[0030] Furthermore, the upper mold also includes a positioning component 4, which is located at the upper end of the annular body 7. The positioning component 4 is circumferentially disposed on the outer side of the circumferential electrode 2, and a groove 43 is formed on the inner peripheral wall of the positioning component 4. The outer side wall of the circumferential electrode 2 is engaged with the groove 43, thereby improving the connection stability between the positioning component 4 and the circumferential electrode 2. That is, the outer side wall of the circumferential electrode 2 is placed in the groove 43 and the receiving groove 72 from top to bottom.

[0031] Furthermore, the positioning component 4 includes a positioning ring 41 and an insulating block 42, which are circumferentially arranged from top to bottom on the outer side of the encircling electrode 2. The groove 43 passes through the inner circumferential wall of the positioning ring 41 and the inner circumferential wall of the insulating block 42 from top to bottom. The insulating block 42 is used to prevent the encircling electrode 2 from forming a circuit with the positioning ring 41 and the annular body 7 when energized. The positioning ring 41 facilitates the installation of the encircling electrode 2 with other accessories.

[0032] In this embodiment, the welding device with positioning function further includes a second fastener, which is used to connect the positioning ring 41, the insulating block 42 and the annular body 7 to ensure the stability of the upper mold.

[0033] Furthermore, the welding device with positioning function also includes a first fastener. The circumferential electrode 2 has a mounting hole, and the positioning component 4 has a connecting hole communicating with the mounting hole. One end of the first fastener passes through the connecting hole and is fixedly connected to the mounting hole. The first fastener is used to improve the connection stability between the positioning component 4 and the circumferential electrode 2.

[0034] Furthermore, the welding device with positioning function also includes a drive assembly, which is used to drive the upper mold to move downward until it abuts against the motor base.

[0035] In this embodiment, the drive component adopts servo control to keep the axial pressure of the upper cover 5 and the cylinder 6 consistent, ensuring that no normal reaction force will occur due to excessive axial pressure during the welding process, and avoiding the offset between the upper cover 5 and the cylinder 6.

[0036] Furthermore, the welding device is used for welding and forming compressor piping or liquid receiver connecting pipes in refrigeration and air conditioning systems, and has high welding stability.

[0037] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A positioning component, characterized in that: It includes an annular body (7), which has a hollow columnar structure. The inner peripheral wall of the annular body (7) is provided with a protrusion (71), and the protrusion (71) and the inner peripheral wall of the annular body (7) form a receiving groove (72).

2. A welding device with positioning function, characterized in that: The device includes an upper mold and an electrode seat (1) located below the upper mold. The upper part of the electrode seat (1) is provided with a through groove (11) communicating with the upper mold. The upper mold includes the positioning element and the circumferential electrode (2) as described in claim 1. The circumferential electrode (2) has a hollow columnar structure. The lower part of the circumferential electrode (2) is placed in the receiving groove (72). The outer peripheral edge area of ​​the lower end face of the circumferential electrode (2) abuts against the upper end face of the protrusion (71). The inner peripheral edge area of ​​the lower end face of the circumferential electrode (2) protrudes radially from the outer edge of the protrusion (71). The inner peripheral edge area of ​​the lower end face of the circumferential electrode (2) and the inner peripheral wall of the protrusion (71) form a limiting groove (3). The inner edge of the circumferential electrode (2) is arc-shaped.

3. The welding device with positioning function according to claim 2, characterized in that: The upper mold also includes a positioning component (4), which is located at the upper end of the annular body (7). The positioning component (4) is circumferentially disposed on the outside of the circumferential electrode (2). The inner peripheral wall of the positioning component (4) is provided with a groove (43) communicating with the receiving groove (72). The outer wall of the circumferential electrode (2) is placed in the groove (43).

4. The welding device with positioning function according to claim 3, characterized in that: The positioning component (4) includes a positioning ring (41) and an insulating block (42). The positioning ring (41) and the insulating block (42) are arranged circumferentially from top to bottom on the outer side of the circumferential electrode (2). The groove (43) passes through the inner peripheral wall of the positioning ring (41) and the inner peripheral wall of the insulating block (42) from top to bottom.

5. The welding device with positioning function according to claim 4, characterized in that: The upper end face of the positioning ring (41) is provided with a slot (411) that communicates with the through groove (11). The outer peripheral wall of the upper part of the circumferential electrode (2) extends into the slot (411) with a locking block (21), and the locking block (21) engages with the slot (411).

6. The welding device with positioning function according to claim 2, characterized in that: It also includes a first fastener, the circumferential electrode (2) has an installation hole, the positioning component (4) has a connection hole communicating with the installation hole, and one end of the first fastener passes through the connection hole and is fixedly connected to the installation hole.

7. The welding device with positioning function according to claim 2, characterized in that: It also includes a drive assembly for driving the upper mold to move downwards until it contacts the motor base.

8. The welding device with positioning function according to claim 2, characterized in that: The welding device is used for welding and forming compressors or liquid receivers in refrigeration and air conditioning systems.

Images