A laser welding apparatus for pump housing welding

Abstract

The utility model relates to laser welding equipment technical field discloses a kind of laser welding equipment for pump shell welding, it includes machine table, and laser welding mechanism, automatic pressurizing positioning fixture and CCD visual positioning mechanism installed on the machine table, the automatic pressurizing positioning fixture is used to realize the pressurizing positioning of pump shell product and the rotation when welding, the CCD visual positioning mechanism is used to detect weld position, the laser welding mechanism is used to carry out welding to product according to the position information fed back by the CCD visual positioning mechanism.The utility model provides a kind of laser welding equipment for pump shell welding, by laser welding mechanism, automatic pressurizing positioning fixture and CCD visual positioning mechanism etc. component composition, artificial feeding and discharging, pressurizing, positioning and laser welding process automation production, work efficiency is high and product positioning is stable, intelligent when welding.

Description

Technical Field

[0001] This utility model relates to the field of laser welding equipment technology, and in particular to a laser welding equipment for pump casing welding. Background Technology

[0002] Laser welding equipment is required in the production process of pump casings. Some existing pump casing laser welding devices can be found in Chinese patent documents with publication numbers CN214185866U, CN216829221U, and CN119973368A. While these existing laser welding devices can achieve laser welding of pump casings, their efficiency, intelligence, and stability still need further improvement. Summary of the Invention

[0003] The purpose of this utility model is to provide a laser welding device for pump casing welding that is highly efficient, provides stable welding, and is intelligent, and to provide at least one beneficial option or create conditions for solving one or more technical problems existing in the prior art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution.

[0005] A laser welding device for pump casing welding includes a machine base, and a laser welding mechanism, an automatic pressure positioning fixture, and a CCD vision positioning mechanism mounted on the machine base. The automatic pressure positioning fixture is used to pressurize and position the pump casing product and rotate it during welding. The CCD vision positioning mechanism is used to detect the weld position. The laser welding mechanism is used to weld the product based on the position information fed back by the CCD vision positioning mechanism.

[0006] The automatic pressurizing and positioning fixture includes a servo rotary platform and a pressure plate corresponding to the servo rotary platform. A product fixture, a centering cylinder, and a servo motor are mounted on the servo rotary platform. The product fixture is rotatably mounted on the servo rotary platform via a rotating shaft. The servo motor provides rotational power to the product fixture. The rotating shaft has an axially oriented through hole. The cylinder shaft of the centering cylinder passes through the through hole and can be lifted out of the through hole. The pressure plate is a rotating plate used to press the pump housing product placed on the product fixture and rotates together with the product fixture and the pump housing product. A pressure sensor is provided corresponding to the pressure plate to detect the pressure applied by the pressure plate.

[0007] More preferably, a product detection sensor is provided corresponding to the product fixture, and the product detection sensor is used to detect whether the pump housing product is properly placed.

[0008] More preferably, the pressure plate is rotatably mounted on a lifting plate via a bearing, and the lifting plate performs lifting and pressing actions under the drive of the lifting power mechanism, with the pressure sensor installed at the connection between the lifting plate and the lifting power mechanism.

[0009] More preferably, a guide shaft is connected to the lifting plate to improve the lifting stability of the lifting plate.

[0010] More preferably, the lifting power unit is a lifting cylinder, an electric cylinder, or a hydraulic cylinder.

[0011] More preferably, the laser welding mechanism includes a laser welding head, a fume extraction port, a blower port, a Y-axis module, and a Z-axis module. The laser welding head is mounted on the Z-axis module and moves up and down under the drive of the Z-axis module. The Y-axis module is used to drive the Z-axis module to move back and forth along the Y-axis direction. The fume extraction port and the blower port are correspondingly arranged with the laser welding head and are used to suck away the smoke and dust and blow protective gas, respectively.

[0012] More preferably, the laser welding head is mounted in a swing configuration with the Z-axis module via a swing mechanism, which is used to adjust the angle of the laser welding head according to actual needs.

[0013] More preferably, the smoke extraction port is a rigid pipe, assembled with the laser welding head, and moves with the movement of the laser welding head.

[0014] More preferably, the air outlet is a flexible tube air outlet, which can be used to adjust the air blowing angle of the air outlet according to actual needs.

[0015] More preferably, the CCD visual positioning mechanism is angle-adjustably mounted on a base and includes a CCD camera, lens, and light source assembled together.

[0016] The technical solution provided by this utility model has at least the following technical effects or advantages.

[0017] This utility model provides a laser welding equipment for pump casing welding, which consists of a laser welding mechanism, an automatic pressure positioning fixture, and a CCD vision positioning mechanism. The manual loading and unloading, pressure application, positioning, and laser welding processes are automated, resulting in high work efficiency. At the same time, the pump casing product placed on the product fixture is centered and positioned by using a centering cylinder and inner diameter positioning. The rotating pressure plate solves the problem of the required pressure during product welding, and the pressure applied by the pressure plate is adjustable, which effectively improves the stability and intelligence of the welding process.

[0018] Other beneficial effects or technical advantages of this invention will become more apparent in the following description or practice. Attached Figure Description

[0019] Figure 1 The diagram shown is a structural schematic of the laser welding equipment provided by this utility model.

[0020] Figure 2 The diagram shown is a schematic representation of the internal structure of the laser welding equipment provided by this utility model.

[0021] Figure 3 As shown Figure 2 Top view.

[0022] Figure 4 As shown Figure 2 Side view.

[0023] Figure 5 The diagram shown is a schematic of the laser welding mechanism.

[0024] Figure 6 The diagram shown is a structural schematic of an automatic pressure positioning fixture.

[0025] Figure 7 The diagram shown is a structural schematic of a CCD vision positioning mechanism.

[0026] Explanation of the reference numerals in the attached figures.

[0027] 1: Laser welding mechanism; 2: Automatic pressure positioning fixture; 3: CCD vision positioning mechanism; 4: Machine base; 5: Pump housing product.

[0028] 101: Laser welding head, 102: Smoke extraction port, 103: Air blowing port, 104: Y-axis module, 105: Z-axis module.

[0029] 201: Servo rotary platform, 202: Pressure plate, 203: Product fixture, 204: Centering cylinder, 205: Servo motor, 206: Pressure sensor, 207: Bearing, 208: Lifting plate, 209: Lifting power mechanism, 210: Guide shaft, 211: Product detection sensor.

[0030] 301: CCD camera, 302: lens, 303: light source, 304: mount. Detailed Implementation

[0031] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings, making the technical solution and beneficial effects of this utility model clearer and more explicit. 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.

[0032] Additional aspects and advantages of this invention will become apparent in the description that follows, or may be learned by practice of this invention.

[0033] Reference Figures 1-4 As shown, a laser welding device for pump casing welding includes a machine base 4, and a laser welding mechanism 1, an automatic pressure positioning fixture 2, and a CCD vision positioning mechanism 3 mounted on the machine base 4. The automatic pressure positioning fixture 2 is used to pressurize and position the pump casing product and rotate the product during welding. The CCD vision positioning mechanism 3 is used to detect the weld position. The laser welding mechanism 1 is used to weld the product based on the position information fed back by the CCD vision positioning mechanism 3. It should be noted that the machine base 4 is equipped with various accessories required for the operation of the laser welding mechanism 1, the automatic pressure positioning fixture 2, and the CCD vision positioning mechanism 3. These accessories are all common technical knowledge possessed by those skilled in the art and will not be described in detail here.

[0034] Combination Figure 5 As shown, the laser welding mechanism 1 includes a laser welding head 101, a fume extraction port 102, an air blowing port 103, a Y-axis module 104, and a Z-axis module 105. The laser welding head 101 is mounted on the Z-axis module 105 and moves up and down under the drive of the Z-axis module 105. The Y-axis module 104 is used to drive the Z-axis module 105 to move back and forth along the Y-axis direction. The fume extraction port 102 and the air blowing port 103 are correspondingly arranged with the laser welding head 101 and are used to suck away the smoke and blow protective gas, respectively.

[0035] In this embodiment, the laser welding head 101 is preferably mounted to the Z-axis module 105 via a swing mechanism, so that the angle of the laser welding head 101 can be adjusted according to actual needs. As for the specific structure of the swing mechanism, it can be a known manual swing mechanism or an electric swing mechanism, which are common technical knowledge mastered by those skilled in the art and will not be described in detail here.

[0036] In this embodiment, the smoke extraction port 102 is preferably a rigid tube and is assembled with the laser welding head 101, moving with the movement of the laser welding head 101; the air blowing port 103 is preferably a flexible tube air blowing port, which allows the user to adjust the blowing angle of the air blowing port according to actual needs. In some embodiments, the smoke extraction port 102 may also be configured as a flexible tube structure, not limited to this embodiment.

[0037] As for the specific structural composition of the Y-axis module 104 and the Z-axis module 105, these are common technical knowledge that is known to those skilled in the art, and will not be described in detail here.

[0038] Combination Figure 6As shown, the automatic pressurizing and positioning fixture 2 includes a servo rotary platform 201 and a pressure plate 202 corresponding to the servo rotary platform 201. A product fixture 203, a centering cylinder 204, and a servo motor 205 are mounted on the servo rotary platform 201. The product fixture 203 is rotatably mounted on the servo rotary platform 201 via a rotating shaft. The servo motor 205 provides rotational power to the product fixture 203. The rotating shaft has a through hole arranged along the axial direction. The cylinder shaft of the centering cylinder 204 passes through the through hole and can be lifted out of the through hole. In this way, when the pump housing product 5 is placed on the product fixture 203, the pump housing product 5 can be centered and positioned by the ejection of the cylinder shaft and the positioning of the inner diameter of the pump housing product 5. The pressure plate 202 is a rotating plate, which is used to press the pump housing product placed on the product fixture 203 and rotate together with the product fixture 203 and the pump housing product; a pressure sensor 206 is provided corresponding to the pressure plate 202, which is used to detect the pressure applied by the pressure plate 202.

[0039] This embodiment provides a laser welding device for pump casing welding, the working steps of which are as follows: 1) The pump casing product is manually placed on the product fixture 203, the centering cylinder 204 is pushed out, and the pump casing product is centered by the inner diameter positioning (the pump casing product has an inner diameter hole that matches the cylinder shaft); then the pressure plate 202 presses down to press the pump casing product tightly on the product fixture 203; when the pressure reaches the set pressure value, it stops; 2) After the automatic pressure positioning is completed, the CCD vision positioning mechanism 3 positions the weld position of the pump casing product; 3) According to the position information fed back by the CCD vision positioning mechanism 3, the laser welding mechanism 1 moves the laser welding head 101 to the weld of the product and welds the product (during welding, the automatic pressure positioning fixture 2 rotates in linkage with the pump casing product), while the air blowing port 103 blows nitrogen to protect the welding effect, and the smoke extraction port 102 sucks away the smoke in time.

[0040] This embodiment provides a laser welding device for pump casing welding, comprising a laser welding mechanism 1, an automatic pressure-applying and positioning fixture 2, and a CCD vision positioning mechanism 3. The device automates the manual loading and unloading, pressure application, positioning, and laser welding processes, resulting in high work efficiency. Simultaneously, a centering cylinder and inner diameter positioning are used to center the pump casing product placed on the product fixture 203. A rotating pressure plate 202 addresses the need for a certain pressure during welding, and the pressure applied by the pressure plate 202 is adjustable, effectively improving the stability and intelligence of the welding process.

[0041] Combined Figure 6As shown, the pressure plate 202 is rotatably mounted on a lifting plate 208 via a bearing 207. The lifting plate 208 is raised and lowered by a lifting power mechanism 209. The pressure sensor 206 is installed at the connection between the lifting plate 208 and the lifting power mechanism 209 to more accurately measure the pressure applied by the pressure plate 202. Furthermore, to ensure the stability of the lifting, a guide shaft 210 is preferably connected to the lifting plate 208. It should be noted that the lifting power mechanism 209 can be a known lifting cylinder, electric cylinder, or hydraulic cylinder, etc.

[0042] More preferably, a product detection sensor 211 is also provided corresponding to the product fixture 203. The product detection sensor 211 is used to detect whether the pump housing product 5 is properly placed, thereby ensuring the welding quality.

[0043] Combination Figure 7 As shown, the CCD visual positioning mechanism 3 includes a CCD camera 301, a lens 302, and a light source 303 assembled together. The specific assembly method of the CCD camera 301, lens 302, and light source 303 is common technical knowledge possessed by those skilled in the art and will not be elaborated here. Furthermore, to facilitate adjustment of the shooting angle of the CCD visual positioning mechanism 3, it is preferable that the CCD visual positioning mechanism 3 is angle-adjustably mounted on a bracket 304. The angle-adjustable mounting can be achieved using existing known methods of rotation into position followed by bolt locking.

[0044] It should also be noted that in the description of this utility model, directional terms such as "center", "horizontal", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this utility model.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or 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.

[0046] In this utility model, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on this utility model all fall within the protection scope of this utility model, which should be defined by the claims and their equivalents. Parts not described in the specific embodiments are all prior art or common knowledge.

Claims

1. A laser welding device for pump casing welding, characterized in that, The equipment includes a machine base, and a laser welding mechanism, an automatic pressure positioning fixture, and a CCD vision positioning mechanism installed on the machine base. The automatic pressure positioning fixture is used to realize the pressure positioning of the pump housing product and its rotation during welding. The CCD vision positioning mechanism is used to determine the weld position. The laser welding mechanism is used to weld the product according to the position information fed back by the CCD vision positioning mechanism. The automatic pressurizing and positioning fixture includes a servo rotary platform and a pressure plate corresponding to the servo rotary platform. A product fixture, a centering cylinder, and a servo motor are mounted on the servo rotary platform. The product fixture is rotatably mounted on the servo rotary platform via a rotating shaft. The servo motor provides rotational power to the product fixture. The rotating shaft has an axially oriented through hole. The cylinder shaft of the centering cylinder passes through the through hole and can be lifted out of the through hole. The pressure plate is a rotating plate used to press the pump housing product placed on the product fixture and rotates together with the product fixture and the pump housing product. A pressure sensor is provided corresponding to the pressure plate to detect the pressure applied by the pressure plate.

2. The laser welding equipment for pump casing welding according to claim 1, characterized in that, The product fixture is equipped with a product detection sensor, which is used to detect whether the pump housing product is properly placed.

3. The laser welding equipment for pump casing welding according to claim 1, characterized in that, The pressure plate is rotatably mounted on a lifting plate via bearings. The lifting plate performs lifting and pressing actions under the drive of the lifting power mechanism. The pressure sensor is installed at the connection between the lifting plate and the lifting power mechanism.

4. The laser welding equipment for pump casing welding according to claim 3, characterized in that, A guide shaft is connected to the lifting plate to improve the lifting stability of the lifting plate.

5. The laser welding equipment for pump casing welding according to claim 3, characterized in that, The lifting power unit is a lifting cylinder, an electric cylinder, or a hydraulic cylinder.

6. The laser welding equipment for pump casing welding according to claim 1, characterized in that, The laser welding mechanism includes a laser welding head, a fume extraction port, a blower port, a Y-axis module, and a Z-axis module. The laser welding head is mounted on the Z-axis module and moves up and down under the drive of the Z-axis module. The Y-axis module is used to drive the Z-axis module to move back and forth along the Y-axis direction. The fume extraction port and the blower port are correspondingly arranged with the laser welding head and are used to suck away the smoke and dust and blow protective gas, respectively.

7. The laser welding equipment for pump casing welding according to claim 6, characterized in that, The laser welding head is mounted in a swinging manner with the Z-axis module via a swinging mechanism, which is used to adjust the angle of the laser welding head according to actual needs.

8. The laser welding equipment for pump casing welding according to claim 6, characterized in that, The smoke extraction port is a rigid pipe and is assembled with the laser welding head, moving with the movement of the laser welding head.

9. A laser welding device for pump casing welding according to claim 6, characterized in that, The air outlet is a flexible tube air outlet, which is used to adjust the air blowing angle of the air outlet according to actual needs.

10. The laser welding equipment for pump casing welding according to claim 1, characterized in that, The CCD visual positioning mechanism is mounted on a base with adjustable angle and includes a CCD camera, lens, and light source assembled together.

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