Baking mold medium-sized laser welding auxiliary device

Abstract

The utility model belongs to the technical field of baking mold processing, and particularly relates to a medium-sized laser welding auxiliary device for baking molds. A medium-sized laser welding auxiliary device for baking molds, comprising a placement table for placing sub-molds, the placement table is rectangular, and the adjacent two side edges of the placement table are provided with positioning strips, the two positioning strips are arranged perpendicular to each other, the positioning strips are used to contact the flange of the sub-mold, and the opposite sides of the positioning strips are provided with a tightening mechanism for tightening the flange of the sub-mold, an electromagnet suction cup is provided on the table top of the placement table, and a pad is provided on the electromagnet suction cup, and the two side edges of the pad are respectively in contact with the positioning strip, the pad is made of a material that is difficult to absorb laser, the pad is rectangular and the area is larger than the area of ​​the medium-sized baking mold to be welded; when the medium-sized baking mold needs to be welded, the sub-mold is arranged in a rectangular shape and placed on the pad. The utility model has the advantage of preventing the electromagnet suction cup from being damaged.

Description

Technical Field

[0001] The utility model belongs to the technical field of baking mold processing, and in particular relates to a medium-sized laser welding auxiliary device for a baking mold. Background Art

[0002] The medium-sized baking mold is also called a multi-connected sub-mold. The medium-sized baking mold is rectangular and is welded from several sub-molds arranged in a rectangular shape.

[0003] A Chinese patent with application number 202020529294.8 discloses a tightening device for laser welding of baking boxes, including a first mounting seat for supporting a plurality of sub-boxes having a can body and a rectangular flange, and a first squeezing mechanism arranged on the first mounting seat; an electromagnet suction cup is provided at the upper end of the first mounting seat.

[0004] The above scheme can adsorb the sub-mold (sub-box) by arranging an electromagnet suction cup on the first mounting seat, which can further improve the stability of the sub-mold after splicing, as well as the efficiency and quality of sub-mold welding; however, during laser welding, the laser will weld through the sub-mold, causing damage to the electromagnet suction cup. Utility Model Content

[0005] The utility model aims to provide a medium-sized laser welding auxiliary device for a baking mold which can prevent an electromagnet sucker from being damaged.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a medium-sized laser welding auxiliary device for baking molds, comprising a placing table for placing sub-molds, the placing table is rectangular, and positioning strips are provided on the adjacent two side edges of the placing table, and the two positioning strips are arranged perpendicular to each other, and the positioning strips are used to contact the flange of the sub-mold, and the opposite sides of the positioning strips are provided with a tightening mechanism for tightening the flange of the sub-mold, an electromagnet suction cup is provided on the table top of the placing table, and a pad is provided on the electromagnet suction cup, and the side edges of the pad are respectively in contact with the positioning strips, and the pad is made of a material that is difficult to absorb laser, and the pad is rectangular and its area is larger than the area of ​​the medium-sized baking mold to be welded; when the medium-sized baking mold needs to be welded, the sub-molds are arranged in a rectangular shape and placed on the pad.

[0007] During the welding process, the operator first places the pad on the electromagnet suction cup so that the two side edges of the pad are in contact with the positioning strips respectively. Then the operator places the sub-molds one by one in a rectangular shape on the pad. Then the tightening mechanism tightens the two side flanges of the sub-mold so that the other two side flanges of the sub-mold are in contact with the positioning strips. Then the sub-molds are laser welded by a laser welding device, and all the sub-molds are welded together to complete the processing of the medium-sized baking mold.

[0008] The pad is made of a material that is difficult to absorb laser light, such as aluminum alloy, titanium alloy, etc., so as to avoid welding the pad and the sub-mold together. The area of ​​the pad is related to the area of ​​the baking mold. Since the pad is a consumable, it is not suitable to set the pad too large, thereby wasting materials. Therefore, the area of ​​the pad is larger than the area of ​​the baking mold.

[0009] This solution arranges a pad on the electromagnet chuck so that the laser does not directly hit the electromagnet chuck during welding, thereby protecting the electromagnet chuck. At the same time, the area of ​​the pad is larger than the area of ​​the baking mold and the pad is in contact with the positioning bar, thereby ensuring that all sub-molds are located on the pad.

[0010] Preferably, the electromagnet chuck is an electro-permanent magnetic chuck.

[0011] The electric permanent magnetic chuck can control the size of the magnetic force, thereby controlling the adsorption force on the sub-mold, and can ensure that the welding sub-mold is accurately fixed in a predetermined position, avoiding welding deviations caused by movement or shaking of the sub-mold, thereby improving welding accuracy.

[0012] Preferably, the electro-permanent magnetic chuck comprises a plurality of magnetic blocks arranged in a rectangular shape, wherein the magnetic blocks comprise positive magnetic blocks and negative magnetic blocks; when the sub-mold is placed on the pad, there is at least one positive magnetic block and one negative magnetic block correspondingly under one sub-mold.

[0013] At least one positive magnetic block and one negative magnetic block are provided under one sub-mold to better adsorb the sub-mold.

[0014] Preferably, the pad is made of non-magnetic material.

[0015] Since the electromagnet chuck is an electro-permanent magnetic chuck, in order to prevent the pad from neutralizing the magnetic field and weakening the adsorption of the sub-mold, the pad is made of non-magnetic material.

[0016] Preferably, the thickness of the pad is 1.5 mm-2.5 mm.

[0017] The thickness of the pad is 1.5mm-2.5mm, which can prevent laser welding from penetrating while ensuring that the sub-mold can be adsorbed by sufficient magnetic force.

[0018] Preferably, the clamping mechanism comprises a driver and two clamping plates, the two clamping plates are vertically arranged, the clamping plates are arranged on the placing table, the driver is respectively arranged at the two side edges of the placing table, and the two clamping plates clamp the two side flanges of the sub-mold under the action of the driver.

[0019] The size of the baking mold may change according to actual production needs. Conventional drivers are usually cylinders with limited stroke. The stroke of the driver can be indirectly increased by setting a tightening plate, so that the sub-mold can be tightened to ensure that the sub-mold is arranged in a rectangular shape. At the same time, the tightening plate can be replaced to suit the welding of baking molds of different sizes.

[0020] Preferably, the tightening plate portion is located on the upper side of the pad.

[0021] The tensioning plate portion is located on the upper side of the pad to prevent the tensioning plate from colliding with the pad when moving.

[0022] Preferably, the material of the top tightening plate is the same as that of the baking mold.

[0023] The top tightening plate is made of the same material as the baking mold and can be magnetically adsorbed at the same time, so that when the driver pushes the top tightening plate, the top tightening plate is adsorbed by the magnet to prevent the top tightening plate from tilting.

[0024] Preferably, the driver is a cylinder, and an aluminum block is detachably fixed to the output end of the cylinder, and the aluminum block is used to contact the clamping plate.

[0025] Since the top tightening plate is relatively thin, the driver is easily damaged when the driver squeezes the top tightening plate. Therefore, an aluminum block is detachably fixed at the output end of the driver, so that only the aluminum block needs to be replaced after multiple uses.

[0026] The utility model has the advantages of preventing the electromagnet sucker from being damaged and ensuring the size of the magnetic force. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the utility model.

[0028] Figure 2 for Figure 1 Schematic diagram of the structure after removing the top tightening plate.

[0029] Figure 3 It is a structural schematic diagram of an electro-permanent magnetic chuck.

[0030] Figure numbers: 1, placement table; 2, positioning bar; 3, top tightening plate; 4, pad; 5, driver; 51, aluminum block; 6, electric permanent magnetic suction cup; 61, magnetic block; 100, sub-mold. DETAILED DESCRIPTION

[0031] The utility model is further described below based on the accompanying drawings and specific embodiments.

[0032] like Figure 1As shown, this embodiment discloses a medium-sized laser welding auxiliary device for baking molds, including a placing table 1, which is rectangular, and two positioning bars 6 are arranged on two right-angled sides of the placing table 1, and the two positioning bars 6 are arranged perpendicular to each other. On the other two right-angled sides of the placing table 1, a plurality of drivers 5 arranged along the right-angled sides of the placing table are arranged, and the driver 5 is a cylinder, and an aluminum block 51 is detachably fixed at the output end of the driver 5. The driver 5 is equipped with two top tightening plates 3, and the material of the top tightening plates 3 is the same as that of the baking mold, both of which are iron materials. The two top tightening plates 3 are arranged vertically and can tighten the flanges on both sides of the sub-mold 100 under the push of the driver 5.

[0033] like Figures 1 to 3 As shown, an electric permanent magnetic suction cup 6 is provided on the table surface of the placing table 1, and a pad 4 is laid flat on the electric permanent magnetic suction cup 6. The thickness of the pad 4 is 2 mm. The pad 4 is made of aluminum alloy material and is not easy to absorb lasers, and the magnetic conductivity is weak. The pad 4 is rectangular, and the right angles on both sides of the pad 4 are in contact with the positioning plate 2 respectively. The area of ​​the pad 4 is larger than the area of ​​the medium-sized baking mold, and the two top tightening plates 3 are always placed on the pad 4. The electric permanent magnetic suction cup 6 includes a plurality of magnetic blocks 61 arranged in a rectangular shape. The magnetic blocks 61 include positive magnetic blocks and negative magnetic blocks. When the sub-mold 100 is placed on the pad 4, there is at least one positive magnetic block and a negative magnetic block under the sub-mold 100.

[0034] When welding the baking mold, the operator first places the pad 4 on the permanent magnetic chuck 6, and the two sides of the pad 4 are in contact with the positioning strip 2 respectively. Then the operator places the sub-molds 100 one by one in a rectangular arrangement on the pad 4, and places the top plate 3 on the permanent magnetic chuck 6 and the pad 4; then the cylinder pushes the top plate 3, and the top plate 3 presses the two side flanges of the sub-mold 100, so that the other two side flanges of the sub-mold 100 are in contact with the positioning strip 2, and then the sub-molds are laser welded by the laser welding device, and all the sub-molds 100 are welded together to form the baking mold. Among them, after welding 200 sets of baking molds, a new pad needs to be replaced.

Claims

1. A medium-sized laser welding auxiliary device for baking molds, comprising a placing table for placing a sub-mold, the placing table is rectangular, and positioning strips are provided on the adjacent two side edges of the placing table, and the two positioning strips are arranged perpendicular to each other, and the positioning strips are used to contact the flange of the sub-mold, and the opposite sides of the positioning strips are provided with a tightening mechanism for tightening the flange of the sub-mold, and an electromagnet suction cup is provided on the table surface of the placing table, characterized in that: A pad is provided on the electromagnet suction cup, and the two side edges of the pad are respectively in contact with the positioning strip. The pad is made of a material that is difficult to absorb laser. The pad is rectangular and has an area larger than the area of ​​the baking mold to be welded. When the baking mold needs to be welded, the sub-molds are arranged in a rectangular shape and placed on the pad.

2. The baking mold medium-sized laser welding auxiliary device according to claim 1 is characterized in that: The electromagnet chuck is an electro-permanent magnetic chuck.

3. The baking mold medium-sized laser welding auxiliary device according to claim 2 is characterized in that: The electro-permanent magnetic chuck comprises a plurality of magnetic blocks arranged in a rectangular shape, wherein the magnetic blocks comprise positive magnetic blocks and negative magnetic blocks; when the sub-mold is placed on the pad, there is at least one positive magnetic block and one negative magnetic block correspondingly under one sub-mold.

4. The baking mold medium-sized laser welding auxiliary device according to claim 2 is characterized in that: The backing plate is made of non-magnetic material.

5. The baking mold medium-sized laser welding auxiliary device according to claim 1 is characterized in that: The thickness of the pad is 1.5mm-2.5mm.

6. The baking mold medium-sized laser welding auxiliary device according to any one of claims 1 to 5, characterized in that: The clamping mechanism includes a driver and two clamping plates, the two clamping plates are vertically arranged, the clamping plates are arranged on the placement table, the driver is respectively arranged at the two side edges of the placement table, and the two clamping plates clamp the two side flanges of the sub-mold under the action of the driver.

7. The baking mold medium-sized laser welding auxiliary device according to claim 6 is characterized in that: The tightening plate portion is located on the upper side of the pad.

8. The baking mold medium-sized laser welding auxiliary device according to claim 6 is characterized in that: The material of the top tightening plate is the same as that of the baking mold.

9. The baking mold medium-sized laser welding auxiliary device according to claim 6, characterized in that: The driver is a cylinder, and an aluminum block is detachably fixed to the output end of the cylinder, and the aluminum block is used to contact the top tightening plate.

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