Welding positioning device for environment-friendly equipment shell

Abstract

The utility model relates to the field of welding, and discloses an environment-friendly equipment shell welding and positioning device, a lifting shaft is installed at the center of the upper portion of a rack in an up-down sliding mode, three shell positioning structures are arranged on the upper surface of the rack around the circumference of the lifting shaft in an array mode, and the three shell positioning structures are all movably connected with the lifting shaft. Three sets of flange positioning structures are further arranged on the upper surface of the rack, a supporting frame is vertically installed on the rear side of the upper portion of the rack, a hydraulic cylinder is installed on the front side of the upper portion of the supporting frame, a push rod of the hydraulic cylinder penetrates through the supporting frame to be arranged below the supporting frame, and a pressing disc is installed at the bottom end of the push rod of the hydraulic cylinder. The three groups of shell positioning structures and the three groups of flange positioning structures are arranged above the rack, the shell positioning structures and the flange positioning structures are distributed around the circumference of the lifting shaft in an array mode, and the coaxiality of flanges and shells can be guaranteed through the shell positioning structures and the flange positioning structures which move synchronously, so that the welding precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding field especially relates to a kind of environmental protection equipment shell welding positioning device. BACKGROUND

[0002] The overall of the shell of part of environmental protection equipment is cylindrical structure, in order to be connected with its parts, generally, flange for connecting is welded at the upper and lower ends of the shell respectively, when flange and shell are welded, positioning between the two is needed first, to ensure the dimensional accuracy, parallelism and coaxiality between flange face and shell face, currently, when welding, the shell is directly placed above flange, whether the inner ring of flange coincides with the inner ring of shell is observed by naked eye, then spot welding is carried out, the deformation of flange plane is checked by using level every time after welding a position, to ensure that the plane of flange and the plane of pipe are closely and flatly attached. This makes operation more complex, and the precision after welding is not high, it is difficult to guarantee coaxiality. For this reason, we design a kind of environmental protection equipment shell welding positioning device. SUMMARY

[0003] To solve the technical problem that operation is more complex, and the precision after welding is not high, it is difficult to guarantee coaxiality, the utility model provides a kind of environmental protection equipment shell welding positioning device.

[0004] The utility model adopts the following technical scheme to realize: a kind of environmental protection equipment shell welding positioning device, including rack, the upper center of the rack is slidably installed with lifting shaft, the upper surface of the rack is about the circumferential array of lifting shaft and is provided with three groups of shell positioning structure, and three groups of shell positioning structure are all movably connected with lifting shaft, the upper surface of the rack is also provided with three groups of flange positioning structure, and three groups of flange positioning structure are about the circumferential array of lifting shaft and are provided;

[0005] The vertical support frame is installed on the upper rear side of the rack, the hydraulic cylinder is installed on the front side of the upper support frame, the push rod of the hydraulic cylinder passes through the support frame and is placed below it, and the bottom end of the push rod of the hydraulic cylinder is installed with pressure disc.

[0006] As a further improvement of the above scheme, the axis of the pressure disc is collinear with the axis of the lifting shaft, and three guide rods are slidably arranged on the top of the support frame in a ring shape, the bottom end of the guide rod is connected with the upper surface of the pressure disc, the outer diameter of the pressure disc is not less than the outer diameter of the shell during welding, the pressure disc can move downward under the action of the hydraulic cylinder and tightly press the shell on the flange, ensure that the bottom end of the shell is in direct contact with the surface of the flange, ensure the levelness between the two, and improve the welding precision.

[0007] As a further improvement of the above-mentioned scheme, a circular hole is formed through the center of the upper surface of the rack downwardly, the lifting shaft is arranged in the circular hole in sliding mode, and the bottom end of the lifting shaft is connected with an external lifting mechanism, which is a hydraulic rod, a pneumatic cylinder or other transmission components, and the lifting mechanism can move the lifting shaft up and down, thereby moving the three sets of shell positioning structures outward or inward synchronously, fixing the shell, and ensuring that the axis of the shell is collinear with the shaft pin of the flange, thereby meeting the concentricity requirement.

[0008] As a further improvement of the above-mentioned scheme, the flange positioning structure comprises a pressing cylinder mounted on the rack, a pressing plate is connected with the push rod of the pressing cylinder, the pressing plate is in sliding contact with the upper surface of the rack, and the three pressing plates in the three sets of flange positioning structures are distributed in an equilateral triangle structure, the three pressing cylinders can move inward or outward synchronously, thereby enabling the pressing plate to be attached to the outer surface of the flange, enabling the axis of the flange to be collinear with the axis of the lifting shaft, and enabling the flange to be quickly fixed.

[0009] As a further improvement of the above-mentioned scheme, the shell positioning structure comprises a connecting rod rotationally connected with the lifting shaft through a shaft pin, a sliding plate is rotationally connected with the end of the connecting rod away from the lifting shaft, the sliding plate is slidingly connected between the rack, and an abutting head is formed on the upper side of the side of the sliding plate away from the lifting shaft, the distance between the bottom end of the abutting head and the upper surface of the rack is greater than the thickness of the flange, the sliding plate can expand outward or retract inward under the action of the lifting shaft, thereby enabling the abutting head to abut against the inner wall of the shell, enabling the shell to be fixed, and enabling the axis of the shell to be collinear with the axis of the lifting shaft.

[0010] As a further improvement of the above-mentioned scheme, the upper surface of the rack is provided with three sets of moving sliding holes distributed in a ring shape, the lower end of the sliding plate extends into the moving sliding hole, and the bottom end and the upper side of the sliding plate are provided with limiting blocks, the limiting blocks are in sliding contact with the rack, can limit the sliding plate and make it unable to move up and down, and the lifting shaft can only do linear displacement when lifting.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1、The utility model discloses a set of shell positioning structure is arranged on the upper side of the rack, and the three sets of flange positioning structures are arranged on the upper side of the rack, and they are distributed in a circular array about the lifting shaft, and the synchronous movement of the shell positioning structure and the flange positioning structure can ensure the coaxiality of the flange and the shell, thereby improving the welding precision.

[0013] 2、The hydraulic cylinder is arranged on the upper side of the rack, the push rod of the hydraulic cylinder is provided with a pressing disc, the pressing disc enables the shell to be pressed on the upper side of the flange, thereby ensuring the levelness between the shell and the flange and improving the welding precision. ACCURACY

[0014] Figure 1 The overall structure schematic diagram of the environmental protection equipment shell welding positioning device is provided.

[0015] Figure 2 The left and right isosceles axonometric view. Figure 1

[0016] Figure 3 The structure schematic view of A in the figure. Figure 2

[0017] Figure 4 The distribution diagram of the flange positioning structure and the shell positioning structure.

[0018] Figure 5 The structure schematic view of the shell and the flange in the environmental protection equipment shell welding positioning device.

[0019] Main symbol explanation:

[0020] 1, rack; 11, movable sliding hole; 2, flange positioning structure; 21, compression cylinder; 22, pressing plate; 3, lifting shaft; 4, shell positioning structure; 41, sliding plate; 42, abutting head; 43, limiting block; 44, connecting rod; 5, support frame; 6, hydraulic cylinder; 61, guide rod; 7, compression disc. Specific implementation

[0021] Next, the utility model will be further described in combination with the drawings and specific implementation, and it should be noted that the following described embodiments or technical features can be combined to form new embodiments without conflict.

[0022] Embodiment:

[0023] Please combine Figures 1-5 An environmental protection equipment shell welding positioning device, comprising a rack 1, a lifting shaft 3 is slidably installed on the center of the upper part of the rack 1, three groups of shell positioning structures 4 are arranged on the upper surface of the rack 1 about the circumference of the lifting shaft 3, and the three groups of shell positioning structures 4 are all movably connected with the lifting shaft 3, and the rack 1 is also provided with three groups of flange positioning structures 2, and the three groups of flange positioning structures 2 are arranged about the circumference of the lifting shaft 3.

[0024] A support frame 5 is vertically installed on the upper rear side of the rack 1, a hydraulic cylinder 6 is installed on the upper front side of the support frame 5, the push rod of the hydraulic cylinder 6 penetrates through the support frame 5 and is placed below the support frame 5, and the bottom end of the push rod of the hydraulic cylinder 6 is provided with a compression disc 7.

[0025] ​​The axis of the pressing disc 7 is collinear with the axis of the lifting shaft 3, and three guide rods 61 are arranged in a ring shape on the top of the support frame 5 and slide up and down, the bottom end of the guide rod 61 is connected with the upper surface of the pressing disc 7, the outer diameter of the pressing disc 7 is not less than the outer diameter of the shell during welding, and the pressing disc 7 can move downward under the action of the hydraulic cylinder 6 and tightly press the shell on the flange, so as to ensure that the bottom end of the shell is in direct contact with the surface of the flange, ensure the levelness between them, and improve the welding precision.

[0026] A circular hole is formed in the center of the upper surface of the rack 1 and penetrates downward, the lifting shaft 3 is arranged in the circular hole and slides up and down, and the bottom end of the lifting shaft 3 is connected with an external lifting mechanism, which is a hydraulic rod, a gas cylinder or other transmission components. The lifting mechanism can make the lifting shaft 3 move up and down, and then can make the three sets of shell positioning structures 4 move outward or inward synchronously, so as to fix the shell and ensure that the axis of the shell is collinear with the shaft pin of the flange, meeting the concentricity requirement.

[0027] The flange positioning structure 2 comprises a pressing cylinder 21 mounted on the rack 1, the pressing cylinder 21 is connected with a pressing plate 22, the pressing plate 22 is in sliding contact with the upper surface of the rack 1, and the three pressing plates 22 in the three sets of flange positioning structures 2 are arranged in an equilateral triangle structure, the three pressing cylinders 21 can move inward or outward synchronously, so as to make the pressing plate 22 adhere to the outer surface of the flange, make the axis of the flange collinear with the axis of the lifting shaft 3, and can be quickly fixed.

[0028] The shell positioning structure 4 comprises a connecting rod 44 rotationally connected with the lifting shaft 3 through a shaft pin, a sliding plate 41 rotationally connected with the end of the connecting rod 44 away from the lifting shaft 3, the sliding plate 41 is slidingly connected between the rack 1, and an abutting head 42 is formed on the side of the sliding plate 41 away from the lifting shaft 3, the distance between the bottom end of the abutting head 42 and the upper surface of the rack 1 is greater than the thickness of the flange, the sliding plate 41 can expand outward or contract inward under the action of the lifting shaft 3, so that the abutting head 42 can abut against the inner wall of the shell, and the shell is fixed and the axis of the shell is collinear with the axis of the lifting shaft 3.

[0029] Three sets of moving sliding holes 11 are arranged in a ring shape on the upper surface of the rack 1, the lower end of the sliding plate 41 extends into the moving sliding hole 11, and limit blocks 43 are arranged on the bottom end and the upper side of the sliding plate 41, the limit blocks 43 are in sliding contact with the rack 1, can limit the sliding plate 41 and make it unable to move up and down, and the lifting shaft 3 can only do linear displacement when lifting.

[0030] The implementation principle of the welding positioning device for the shell of the environmental protection equipment in the embodiment of the application is as follows: in actual use, first, the flange is placed above the frame 1 and between the three flange positioning structures 2, then the three pressing cylinders 21 will synchronously push the pressing plates 22 to move inward, so that the pressing plates 22 are attached to the outer surface of the flange, the axis of the flange is collinear with the axis of the lifting shaft 3, and the flange is fixed, then the shell is sleeved outside the three shell positioning structures 4, and the bottom end of the shell is placed above the flange, at this time, the lifting mechanism makes the lifting shaft 3 move downward, the sliding plates 41 in the three shell positioning structures 4 will simultaneously move outward along the moving sliding holes 11, so that the three abutting heads 42 contact the inner wall of the shell, at this time, the axis of the shell is collinear with the axis of the lifting shaft 3, the coaxiality of the flange and the shell is ensured, then the pressing disc 7 moves downward under the action of the hydraulic cylinder 6, the pressing disc 7 makes the shell press above the flange, the levelness between the flange and the shell is ensured, and the welding precision is improved;

[0031] By arranging three groups of shell positioning structures 4 above the frame 1, cooperating with the three groups of flange positioning structures 2, and arranging them in a circumferential array about the lifting shaft 3, the coaxiality of the flange and the shell is ensured by the synchronously moving shell positioning structures 4 and flange positioning structures 2, and the welding precision is improved.

[0032] By arranging the hydraulic cylinder 6 above the frame 1, the pressing disc 7 is arranged on the push rod of the hydraulic cylinder 6, the pressing disc 7 makes the shell press above the flange, the levelness between the flange and the shell is ensured, and the welding precision is improved.

[0033] The above embodiment is only a preferred embodiment of the application, and cannot be used to limit the scope of protection of the application, and any non-substantial changes and replacements made by those skilled in the art on the basis of the application all belong to the scope of protection of the application.

Claims

1. An environmentally friendly welding positioning device for an equipment housing, comprising a frame (1), characterized in that, The lifting shaft (3) is slidably installed at the center of the upper portion of the frame (1), three groups of shell positioning structures (4) are arranged on the upper surface of the frame (1) in a circumferential array about the lifting shaft (3), and the three groups of shell positioning structures (4) are all movably connected with the lifting shaft (3), and three groups of flange positioning structures (2) are arranged on the upper surface of the frame (1), and the three groups of flange positioning structures (2) are arranged in a circumferential array about the lifting shaft (3). The support frame (5) is vertically installed at the rear side of the upper portion of the frame (1), the hydraulic cylinder (6) is installed at the front side of the upper portion of the support frame (5), the push rod of the hydraulic cylinder (6) penetrates through the support frame (5) and is arranged below the support frame (5), and the bottom end of the push rod of the hydraulic cylinder (6) is installed with the pressure plate (7).

2. An environmentally friendly welding positioning device for a housing of an electronic device as claimed in claim 1, characterized in that The axis of the pressure plate (7) is collinear with the axis of the lifting shaft (3), three guide rods (61) are slidably arranged on the top of the support frame (5) in a ring-shaped distribution, the bottom end of the guide rod (61) is connected with the upper surface of the pressure plate (7), and the outer diameter of the pressure plate (7) is not less than the outer diameter of the shell when welded.

3. An environmentally friendly welding fixture for positioning a housing of an appliance as defined in claim 1, wherein, A circular hole is formed through the center of the upper surface of the frame (1) downward, the lifting shaft (3) is slidably arranged in the circular hole, and the bottom end of the lifting shaft (3) is connected with an external lifting mechanism.

4. An environmentally friendly welding fixture for positioning a housing of an appliance as defined in claim 1, wherein, The flange positioning structure (2) comprises a pressing cylinder (21) installed on the frame (1), the push rod of the pressing cylinder (21) is connected with a pressing plate (22), the pressing plate (22) is in sliding contact with the upper surface of the frame (1), and the three pressing plates (22) in the three groups of flange positioning structures (2) are distributed in an equilateral triangle structure.

5. An environmentally friendly welding fixture for positioning a housing of an appliance as defined in claim 1, wherein, The shell positioning structure (4) comprises a connecting rod (44) rotatably connected with the lifting shaft (3) through a shaft pin, the end of the connecting rod (44) away from the lifting shaft (3) is rotatably connected with a sliding plate (41), the sliding plate (41) is slidably connected with the frame (1), and the upper side of the side of the sliding plate (41) against the lifting shaft (3) forms an abutting head (42).

6. An environmentally friendly device housing welding positioning device as claimed in claim 5, characterized in that The upper surface of the frame (1) is provided with three groups of moving sliding holes (11) arranged in a ring-shaped distribution, the lower end of the sliding plate (41) extends into the moving sliding hole (11), and the bottom end and the upper side of the sliding plate (41) are both provided with a limiting block (43), and the limiting block (43) is in sliding contact with the frame (1).

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