A waterway cover welding device

Abstract

The utility model proposes a waterway cover welding device, including: a bottom plate; a plurality of positioning pins, arranged on the bottom plate, the positioning pins are used to adapt to the pin holes on the bottom end face of the outer shell of the motor shell; a plurality of pressing components, used to press the waterway cover on the top end face of the motor shell, so that the contact between the waterway cover and the motor shell remains stable. According to the waterway cover welding device of the utility model, positioning pins and pressing components are provided, the positioning pins can extend into the pin holes on the bottom end face of the motor shell, the positioning method is more accurate than the positioning using the external contour of the motor shell in the prior art, the cooperation between the positioning pins and the pin holes can ensure the correct position and posture of the motor shell in the welding station, the welding trajectory can move according to the predetermined trajectory to avoid the occurrence of weld offset, the pressing component presses the waterway cover, which can prevent the waterway cover from being lifted up by the welding pressure during welding.

Description

Technical Field

[0001] The utility model relates to the technical field of motor manufacturing, in particular to a waterway cover plate welding device. Background Art

[0002] Combination Figure 1 As shown, the motor housing includes an outer housing 2 and an inner housing 3, and a water channel cover plate 1 connects the outer housing 2 and the inner housing 3 to form a closed water channel with the inner housing and the outer housing to ensure that water circulates in the water channel, thereby reducing the heat generated by the motor.

[0003] In the prior art, the waterway cover plate is connected to the inner shell and the outer shell by stir friction welding to obtain qualified sealing and strength. When welding the waterway cover plate, it needs to be positioned by welding tooling, and the current positioning method is to use the outer contour of the outer shell for positioning.

[0004] In the process of realizing the utility model, the inventor found that there are at least the following problems in the prior art: positioning relies on the external contour of the outer casing, and due to the inconsistent external dimensions of the motor outer casing blank, the positioning is not accurate enough, and offset welds will be produced during welding, resulting in unqualified welding sealing and strength. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] Therefore, the purpose of the utility model is to provide a water channel cover welding device that can accurately position the motor housing.

[0007] In order to achieve the above-mentioned purpose, the utility model provides a waterway cover plate welding device, comprising:

[0008] Base plate;

[0009] A plurality of positioning pins are arranged on the bottom plate, and the positioning pins are used to fit with the pin holes on the bottom end surface of the outer shell of the motor shell;

[0010] A plurality of pressing components are used to press the water channel cover plate on the top end surface of the motor housing to keep the contact between the water channel cover plate and the motor housing stable.

[0011] According to the water channel cover plate welding device of the utility model, a positioning pin and a pressing assembly are provided. The positioning pin can extend into the pin hole on the bottom end face of the motor housing. The positioning method is more accurate than the prior art which uses the outer contour of the motor housing for positioning. The cooperation between the positioning pin and the pin hole can ensure the correct position and posture of the motor housing at the welding station. The welding trajectory can move according to a predetermined trajectory to avoid weld deviation. The pressing assembly presses the water channel cover plate to avoid the water channel cover plate from warping due to the welding pressure during welding.

[0012] According to an embodiment of the utility model, it also includes a support plate and a support plate pad, the support plate pad is arranged on the bottom plate, the top surface of the support plate is provided with a circle of avoidance grooves, and the positioning pin passes through the support plate.

[0013] According to an embodiment of the utility model, it also includes a chuck and an inner support claw, the chuck is arranged on the supporting plate, the chuck has a claw that can move in the radial direction, and the inner support claw is arranged on the claw.

[0014] According to an embodiment of the utility model, the cross section of the inner supporting claw is fan-shaped, and the outer arc surface of the inner supporting claw is used to abut against the inner wall of the motor housing.

[0015] According to an embodiment of the utility model, a chuck pad is further included. The middle of the support plate has a through hole. The chuck pad is arranged on the support plate around the through hole. The top of the chuck pad is connected to the chuck.

[0016] According to an embodiment of the utility model, it also includes a cover plate, which is arranged on the inner supporting claw and hinged with the inner supporting claw.

[0017] According to an embodiment of the utility model, it also includes bolts, the cover plate is provided with a plurality of waist-shaped holes arranged along the circumferential direction, the inner support claw is provided with a threaded hole, and the bolt passes through the waist-shaped hole and is connected with the threaded hole.

[0018] According to one embodiment of the utility model, the pressing assembly is an angle cylinder having a piston rod and a pressing arm, the first end of the pressing arm is connected to the piston rod, and the second end of the pressing arm is used to press the waterway cover plate.

[0019] According to an embodiment of the utility model, a pressure head is provided at the second end of the pressure arm, and the pressure head protrudes downward from the pressure arm.

[0020] According to an embodiment of the utility model, it also includes a hanging ring, and the hanging ring is arranged on the bottom plate.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0023] Figure 1 It is a schematic diagram of the installation of a motor housing and a waterway cover in the prior art.

[0024] Figure 2It is a structural schematic diagram of a waterway cover plate welding device proposed in one embodiment of the utility model.

[0025] Figure 3 It is a structural schematic diagram of a waterway cover plate welding device proposed from another angle in one embodiment of the utility model.

[0026] Figure 4 yes Figure 3 The schematic diagram of the structure of the waterway cover welding device omitting the dustproof plate.

[0027] Figure 5 It is a working schematic diagram of a waterway cover plate welding device proposed in one embodiment of the utility model.

[0028] Description of reference numerals:

[0029] 1-waterway cover, 2-outer shell, 3-inner shell, 4-pin hole, 5-bottom plate, 6-down pressure assembly, 7-chuck, 8-inner support claw, 9-cover, 12-support plate, 14-support plate pad, 15-chuck pad, 16-locating pin, 17-lifting ring, 61-piston rod, 62-pressure arm, 63-pressure head, 71-claw, 91-waist hole, 100-waterway cover welding device, 121-avoidance groove. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents that fall within the spirit and connotation of the appended claims.

[0031] Reference below Figures 1 to 5 , describes a waterway cover plate welding device 100 according to an embodiment of the utility model.

[0032] like Figure 2 As shown, the water channel cover plate welding device 100 according to an embodiment of the utility model includes a base plate 5, a plurality of positioning pins 16 and a plurality of pressing components 6.

[0033] The bottom plate 5 mainly plays a supporting role, and is used to support the motor housing, the locating pins 16 and the pressing assembly 6 and other components. The bottom plate 5 is provided with a plurality of connecting holes, which is convenient for installation on the welding platform. A plurality of locating pins 16 are arranged on the bottom plate 5, and the locating pins 16 are used to adapt to the pin holes 4 on the bottom end face of the outer shell 2 of the motor housing. The number of the locating pins 16 is at least 2, and the locating pins 16 and the bottom plate 5 can be connected by welding fixation, bolt fixation, etc. The relative position of the locating pins 16 is consistent with the relative position of the pin holes 4 on the end face of the outer shell 2 of the motor housing. The cooperation between the locating pins and the pin holes generally adopts a transition fit, which can ensure the accuracy of positioning and facilitate assembly and disassembly. A plurality of pressing assemblies 6 are used to press the waterway cover plate 1 on the top end face of the motor housing, so that the contact between the waterway cover plate 1 and the motor housing remains stable. The pressing assembly 6 can use mechanical bolts or hydraulic cylinders, cylinders, etc. to press the waterway cover plate 1.

[0034] According to the water channel cover plate welding device of the embodiment of the utility model, a positioning pin and a pressing assembly are provided. The positioning pin can extend into the pin hole on the bottom end face of the motor housing. The positioning method is more accurate than the prior art that uses the external contour of the motor housing for positioning. The cooperation between the positioning pin and the pin hole can ensure the correct position and posture of the motor housing at the welding station. The welding trajectory can move according to the predetermined trajectory to avoid weld deviation. The pressing assembly presses the water channel cover plate to avoid the water channel cover plate from warping due to the welding pressure during welding.

[0035] Combination Figures 2 to 5 As shown, in some embodiments, the waterway cover plate welding device also includes a support plate 12 and a support plate pad 14, the support plate pad 14 is arranged on the bottom plate 5, the top surface of the support plate 12 is provided with a circle of avoidance grooves 121, and the positioning pin 16 passes through the support plate 12. The support plate 12 is used to place the motor housing. The chuck 7 adopts a pneumatic drive mode, and its air port is usually arranged at the bottom of the chuck 7. After the support plate pad 14 raises the support plate 12, the gap between the support plate 12 and the bottom plate 5 can pass through the air pipe, and the air pipe port is connected to the air port. The radial width of the avoidance groove 121 is slightly larger than the radial width of the waterway cover plate 1. After the waterway cover plate is welded to the motor housing, it will protrude more than the inner housing and the outer housing on both sides. When the end face of the motor housing of the welded waterway cover plate contacts the supporting plane, the motor housing will be placed unevenly. The function of the avoidance groove 121 is to allow the welded waterway cover plate to avoid the supporting plane of the support plate 12, so that the motor housing can be placed flat.

[0036] The waterway cover welding device also includes a chuck 7 and an inner support claw 8. The chuck 7 is arranged on the support plate 12. The chuck 7 has a claw 71 that can move radially, and the inner support claw 8 is arranged on the claw 71. The chuck 7 is a device for clamping the motor housing. The claw 71 moves radially synchronously with the inner support claw 8. After the inner support claw 8 is opened, it can abut against the inner wall of the inner shell 3 of the motor housing to avoid the collapse of the inner shell 3 during the welding process of the waterway cover. In one example, the cross-section of the inner support claw 8 is fan-shaped, and the outer arc surface of the inner support claw 8 is used to abut against the inner wall of the motor housing. The outer arc surface is completely in contact with the inner wall surface of the motor housing, and the supporting effect is better.

[0037] In some embodiments, in combination Figures 2 to 5 As shown, the waterway cover plate welding device further includes a chuck pad 15. The middle of the support plate 12 has a through hole. The chuck pad 15 is arranged on the support plate 12 around the through hole. The top of the chuck pad 15 is connected to the chuck 7. The chuck pad 15 can adjust the height of the motor housing so that the motor housing is in the correct horizontal plane during welding.

[0038] The waterway cover plate welding device also includes a cover plate 9, which is arranged on the inner support claw 8 and hinged to the inner support claw 8. The overall cross-section of the cover plate 9 is circular, and its diameter is slightly smaller than the inner diameter of the inner shell of the motor shell. The cover plate 9 prevents metal debris from entering the interior of the chuck 7 and affecting the clamping or loosening action of the inner support claw 8. In one example, the waterway cover plate welding device also includes bolts, and the cover plate 9 is provided with a plurality of waist-shaped holes 91 arranged along the circumferential direction, and the inner support claw 8 is provided with threaded holes, and the bolts pass through the waist-shaped holes 91 to be connected with the threaded holes. The waist-shaped holes 91 provide space for the radial movement of the inner support claw.

[0039] Combination Figures 2 to 5 As shown, in some embodiments, the pressing component 6 is an angle cylinder, which has a piston rod 61 and a pressure arm 62. The first end of the pressure arm 62 is connected to the piston rod 61, and the second end of the pressure arm 62 is used to press the waterway cover plate 1. When the piston rod 61 is extended to the maximum stroke, the pressure arm 62 is projected away from the waterway cover plate 1 on the plane where the waterway cover plate is located. When the piston rod 61 is pressed down to a certain distance, the pressure arm 62 rotates significantly, and then the pressure arm 62 points to the waterway cover plate 1. The angle cylinder integrates linear motion and rotation functions into one, which can replace the combination of traditional linear cylinders and rotating mechanisms, simplify the mechanical structure, reduce the complexity of design and assembly, and ensure the high-precision requirements for pressing down the waterway cover plate during the welding process.

[0040] In one example, a pressure head 63 is provided at the second end of the pressure arm 62, and the pressure head 63 protrudes downward from the pressure arm 62. The pressure head 63 corresponds to the position of the waterway cover plate 1, ensuring the stability of the waterway cover plate during welding operation and improving welding accuracy and safety.

[0041] In addition, the waterway cover plate welding device also includes a lifting ring 17, which is arranged on the bottom plate 5 to facilitate the entire waterway cover plate welding device to remain stable during movement, thereby improving the practicability and maneuverability of the device.

[0042] It should be noted that, in the description of the present invention, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, the meaning of "plurality" is two or more.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0045] In the description of the present invention, the directions or positional relationships indicated by the terms "left", "right", "front", "rear", etc. are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0046] Any process or method description in the flowchart or otherwise described herein may be understood to represent a module, fragment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present invention belong.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0048] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A waterway cover welding device, characterized in that: include: Bottom plate (5); A plurality of positioning pins (16) are arranged on the bottom plate (5), and the positioning pins (16) are used to match with the pin holes (4) on the bottom end surface of the outer shell (2) of the motor shell; A plurality of pressing components (6) are used to press the water channel cover plate (1) on the top end surface of the motor housing to keep the contact between the water channel cover plate (1) and the motor housing stable.

2. The waterway cover plate welding device according to claim 1, characterized in that: It also comprises a support plate (12) and a support plate pad (14), wherein the support plate pad (14) is arranged on the bottom plate (5), a circle of avoidance grooves (121) is arranged on the top surface of the support plate (12), and the positioning pin (16) passes through the support plate (12).

3. The waterway cover plate welding device according to claim 2, characterized in that: It also comprises a chuck (7) and an inner support claw (8), wherein the chuck (7) is arranged on the support plate (12), the chuck (7) has a claw (71) movable in the radial direction, and the inner support claw (8) is arranged on the claw (71).

4. The waterway cover plate welding device according to claim 3, characterized in that: The cross section of the inner support claw (8) is fan-shaped, and the outer arc surface of the inner support claw (8) is used to abut against the inner wall of the motor housing.

5. The waterway cover plate welding device according to claim 3, characterized in that: It also comprises a chuck pad (15), the middle part of the support plate (12) has a through hole, the chuck pad (15) is arranged on the support plate (12) around the through hole, and the top of the chuck pad (15) is connected to the chuck (7).

6. The waterway cover plate welding device according to claim 3, characterized in that: It also comprises a cover plate (9), wherein the cover plate (9) is arranged on the inner supporting claw (8) and is hinged to the inner supporting claw (8).

7. The waterway cover plate welding device according to claim 6, characterized in that: It also includes bolts, the cover plate (9) is provided with a plurality of waist-shaped holes (91) arranged along the circumferential direction, the inner support claw (8) is provided with a threaded hole, and the bolts pass through the waist-shaped holes (91) and are connected to the threaded holes.

8. The waterway cover plate welding device according to claim 1, characterized in that: The pressing assembly (6) is an angle cylinder, which has a piston rod (61) and a pressing arm (62). The first end of the pressing arm (62) is connected to the piston rod (61), and the second end of the pressing arm (62) is used to press the waterway cover plate (1).

9. The waterway cover plate welding device according to claim 8, characterized in that: A pressing head (63) is provided at the second end of the pressing arm (62), and the pressing head (63) protrudes downward from the pressing arm (62).

10. The waterway cover plate welding device according to any one of claims 1 to 9, characterized in that: It also comprises a lifting ring (17), wherein the lifting ring (17) is arranged on the bottom plate (5).

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