Positioning equipment for pre-welding of an upper cover of an oil cylinder shell

Abstract

The application relates to the oil cylinder shell upper cover processing technical field, and discloses a positioning equipment for pre-welding of an oil cylinder shell upper cover, which comprises a base, fixed columns and a top plate, the fixed columns are welded at the top of the base and the bottom of the top plate, a positioning structure is arranged between the base and the top plate, limit mechanisms are arranged at the two sides of the top of the base, the positioning structure comprises a hydraulic cylinder, a connecting rod one, a pressing disc, a rubber sleeve, a driving motor, supporting columns, supporting rods, a spiral disc, supporting blocks and pressing blocks. The positioning equipment for pre-welding of the oil cylinder shell upper cover can be pressed tightly to the inner side of the oil cylinder shell when the supporting blocks drive the pressing blocks to move outward, so that the oil cylinder shell is fixed; the oil cylinder shell upper cover can be pressed tightly to the oil cylinder shell when the connecting rod one moves downward; the oil cylinder shell upper cover is limited by the connecting rod one, and the oil cylinder shell is limited by the supporting columns, so that the oil cylinder shell upper cover and the oil cylinder shell are not easy to deflect when being welded, and the positioning of the oil cylinder shell upper cover and the oil cylinder shell is more accurate.

Description

Technical Field

[0001] This application relates to the field of cylinder housing cover processing technology, specifically a positioning device for pre-welding cylinder housing cover. Background Technology

[0002] The cylinder housing cover typically refers to the cylinder head (also known as the cylinder cover) installed at both ends of the hydraulic cylinder. Its function is to form a sealed oil chamber with the cylinder barrel and withstand the high-pressure working environment. Currently, existing cylinder housing covers require a positioning device to align the cylinder housing and cylinder cover during welding, ensuring a neat weld.

[0003] Existing positioning devices typically use multiple grippers to clamp the cylinder housing cover onto the housing. However, during use, the positioning device is prone to clamping the cylinder housing cover at an angle, causing misalignment between the cylinder housing cover and the housing, which affects the welding of the cylinder housing cover.

[0004] Therefore, there is an urgent need for a positioning device for pre-welding the cylinder housing cover to solve the problem that the positioning device easily clamps the cylinder housing cover at an angle. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a positioning device for pre-welding the upper cover of a hydraulic cylinder housing, which has the advantage of facilitating the alignment of the upper cover and the housing, and solves the problem that the positioning device easily clamps the upper cover of the hydraulic cylinder housing at an angle.

[0006] To achieve the above objectives, this application provides the following technical solution: a positioning device for pre-welded upper cover of a hydraulic cylinder housing, comprising a base, a fixing column and a top plate, wherein the two ends of the fixing column are welded to the top of the base and the bottom of the top plate, a positioning structure is provided between the base and the top plate, and a limit mechanism is provided on both sides of the top of the base;

[0007] The positioning structure includes a hydraulic cylinder, a connecting rod, a pressure plate, a rubber sleeve, a drive motor, a support column, a support rod, a spiral disc, a support block, and a pressure block. The hydraulic cylinder is installed on the top of the top plate. One end of the connecting rod is fixedly connected to the output end of the hydraulic cylinder. The pressure plate is fixedly connected to the outer surface of the connecting rod by bolts. The rubber sleeve is adhered to the outer surface of the connecting rod. The support column is welded to the top of the base at a position corresponding to the connecting rod. The drive motor is installed at the bottom of the base. One end of the support rod is fixedly connected to the output end of the drive motor. The spiral disc is fixedly connected to the outer surface of the support rod by bolts. The support block is slidably connected to the track on the top of the spiral disc. The pressure block is welded to the outside of the support block.

[0008] The cylinder housing cover is located between the pressure plate and the rubber sleeve. The cylinder housing is fitted onto the outside of the support column. When the support block moves the pressure block outward, it can press against the inside of the cylinder housing to fix the cylinder housing. When the connecting rod moves down, it can press the cylinder housing cover onto the cylinder housing. Moreover, the connection rod's constraint on the cylinder housing cover and the support column's constraint on the cylinder housing make it less likely for the cylinder housing cover and the cylinder housing to be misaligned during welding, allowing for more precise positioning of the cylinder housing cover and the cylinder housing.

[0009] Preferably, the top of the support rod is rotatably connected to the bottom of the inner side of the support column.

[0010] Preferably, the support column has a slot inside that is adapted to the support block.

[0011] Preferably, the outer side of the pressure block is an arc-shaped surface.

[0012] Preferably, the limiting mechanism includes a support frame, an electric cylinder, a second connecting rod, and a clamping plate. The support frame is welded to the top of the base, the electric cylinder is installed on the outside of the support frame, one end of the second connecting rod is fixedly connected to the output end of the electric cylinder, and the clamping plate is fixedly connected to the other end of the second connecting rod by screws.

[0013] Preferably, the card plate is an arc-shaped plate.

[0014] In summary, this application includes at least one of the following beneficial effects:

[0015] 1. The positioning equipment for the pre-welded upper cover of the hydraulic cylinder housing allows the upper cover to be pushed upwards from the bottom of the connecting rod. The upper cover is positioned between the pressure plate and the rubber sleeve. The hydraulic cylinder housing is fitted onto the outside of the support column. When the support block moves the pressure block outwards, it can press against the inside of the hydraulic cylinder housing to fix it. When the connecting rod moves downwards, the pressure plate can press the upper cover onto the hydraulic cylinder housing. Moreover, the constraint of the upper cover by the connecting rod and the constraint of the support column on the hydraulic cylinder housing makes it less likely for the upper cover and the hydraulic cylinder housing to skew during welding, making the positioning of the upper cover and the hydraulic cylinder housing more accurate and improving the welding precision of the upper cover and the hydraulic cylinder housing.

[0016] 2. The positioning equipment for the pre-welded upper cover of the cylinder housing, after the upper cover of the cylinder housing and the cylinder housing are welded together, by adjusting the position of the clamping plate, when the clamping plate presses against the top of the upper cover of the cylinder housing, the connecting rod can drive the rubber sleeve to disengage from the groove in the middle of the upper cover of the cylinder housing, making the positioning device more convenient to use. Attached Figure Description

[0017] Figure 1 This is a structural diagram of the positioning equipment used in this application;

[0018] Figure 2This is a diagram of the internal structure of the support column in this application;

[0019] Figure 3 This is a structural diagram of the rubber sleeve in this application;

[0020] Figure 4 This is a schematic diagram of the overall structure of the spiral disk in this application;

[0021] Figure 5 This is a diagram of the overall structure of the card plate in this application.

[0022] The components are as follows: 1. Base; 111. Hydraulic cylinder; 112. Connecting rod one; 113. Pressure plate; 114. Rubber sleeve; 115. Drive motor; 116. Support column; 117. Support rod; 118. Spiral disc; 119. Support block; 120. Pressure block; 2. Fixed column; 211. Support frame; 212. Electric cylinder; 213. Connecting rod two; 214. Clamping plate; 3. Top plate. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] Please see Figure 1-5 A positioning device for pre-welded upper cover of a hydraulic cylinder housing includes a base 1, a fixing column 2 and a top plate 3. The fixing column 2 is connected to the four corners of the base 1 and the top plate 3 to support the positioning device. The two ends of the fixing column 2 are welded to the top of the base 1 and the bottom of the top plate 3. A positioning structure is provided between the base 1 and the top plate 3. Limiting mechanisms are provided on both sides of the top of the base 1.

[0025] Specifically, the positioning structure includes a hydraulic cylinder 111, a connecting rod 112, a pressure plate 113, a rubber sleeve 114, a drive motor 115, a support column 116, a support rod 117, a spiral disc 118, a support block 119, and a pressure block 120. The hydraulic cylinder 111 is installed on the top of the top plate 3. One end of the connecting rod 112 is fixedly connected to the output end of the hydraulic cylinder 111. The pressure plate 113 is fixedly connected to the outer surface of the connecting rod 112 by bolts. The rubber sleeve 114 is bonded to the outer surface of the connecting rod 112.

[0026] The cylinder housing cover can be pushed upward from the bottom of the connecting rod 112, and the cylinder housing cover moves up between the pressure plate 113 and the rubber sleeve 114.

[0027] The support column 116 is welded to the top of the base 1 at the position corresponding to the connecting rod 112. The drive motor 115 is installed at the bottom of the base 1. One end of the support rod 117 is fixedly connected to the output end of the drive motor 115. The spiral disk 118 is fixedly connected to the outer surface of the support rod 117 by bolts. The top of the support rod 117 is rotatably connected to the bottom of the inner side of the support column 116. The support block 119 is slidably connected to the track at the top of the spiral disk 118. The pressure block 120 is welded to the outside of the support block 119. The outside of the pressure block 120 is an arc-shaped surface. The support column 116 has a slot inside that matches the support block 119.

[0028] Through the above technical solution, the cylinder housing is fitted onto the outside of the support column 116. The drive motor 115 is started, and the drive motor 115 drives the spiral disk 118 to rotate. When the spiral disk 118 rotates, it drives the support block 119 to move laterally. When the support block 119 moves the pressure block 120 laterally to move outward, it can press against the inside of the cylinder housing to fix the cylinder housing. After the hydraulic cylinder 111 is started, the hydraulic cylinder 111 drives the connecting rod 112 to move up and down. When the connecting rod 112 moves down, it can press the cylinder housing cover onto the cylinder housing through the pressure plate 113. Moreover, the limitation of the cylinder housing cover by the connecting rod 112 and the limitation of the cylinder housing by the support column 116 make it less likely for the cylinder housing cover and the cylinder housing to be misaligned during welding, making the positioning of the cylinder housing cover and the cylinder housing more accurate and improving the welding accuracy of the cylinder housing cover and the cylinder housing. The adjacent lateral winding spacing at the top of the spiral disk 118 is the same.

[0029] Specifically, the limiting mechanism includes a support frame 211, an electric cylinder 212, a connecting rod 213, and a clamping plate 214. The support frame 211 is welded to the top of the base 1, the electric cylinder 212 is installed on the outside of the support frame 211, one end of the connecting rod 213 is fixedly connected to the output end of the electric cylinder 212, and the clamping plate 214 is fixedly connected to the other end of the connecting rod 213 by screws. The clamping plate 214 is an arc-shaped plate.

[0030] With the above technical solution, after the cylinder housing cover and the cylinder housing are welded together, the electric cylinder 212 is started. The electric cylinder 212 drives the clamping plate 214 to move through the connecting rod 213. By adjusting the position of the clamping plate 214, when the bottom of the clamping plate 214 presses against the top of the cylinder housing cover, the hydraulic cylinder 111 is started. The hydraulic cylinder 111 drives the connecting rod 112 to move upward. The connecting rod 112 can drive the rubber sleeve 114 to disengage from the groove in the middle of the cylinder housing cover, making the positioning device more convenient to use.

[0031] During use, the cylinder housing cover is located between the pressure plate 113 and the rubber sleeve 114. The cylinder housing is fitted onto the outside of the support column 116. When the support block 119 drives the pressure block 120 to move outward, it can press against the inside of the cylinder housing to fix the cylinder housing. When the connecting rod 112 moves down, it can press the cylinder housing cover onto the cylinder housing. Moreover, the limitation of the cylinder housing cover by the connecting rod 112 and the limitation of the cylinder housing by the support column 116 make it less likely for the cylinder housing cover and the cylinder housing to be misaligned during welding, making the positioning of the cylinder housing cover and the cylinder housing more accurate.

[0032] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A positioning device for pre-welded upper cover of a hydraulic cylinder housing, comprising a base (1), a fixing column (2), and a top plate (3), characterized in that: The fixed column (2) is welded to the top of the base (1) and the bottom of the top plate (3) at both ends. A positioning structure is provided between the base (1) and the top plate (3). Limiting mechanisms are provided on both sides of the top of the base (1). The positioning structure includes a hydraulic cylinder (111), a connecting rod (112), a pressure plate (113), a rubber sleeve (114), a drive motor (115), a support column (116), a support rod (117), a spiral disc (118), a support block (119), and a pressure block (120). The hydraulic cylinder (111) is installed on the top of the top plate (3). One end of the connecting rod (112) is fixedly connected to the output end of the hydraulic cylinder (111). The pressure plate (113) is fixedly connected to the outer surface of the connecting rod (112) by bolts. The rubber sleeve (114) is... 4) Adhesive to the outer surface of connecting rod one (112), the support column (116) is welded to the top of the base (1) at the position corresponding to connecting rod one (112), the drive motor (115) is installed at the bottom of the base (1), one end of the support rod (117) is fixedly connected to the output end of the drive motor (115), the spiral disk (118) is fixedly connected to the outer surface of the support rod (117) by bolts, the support block (119) is slidably connected to the track at the top of the spiral disk (118), and the pressure block (120) is welded to the outside of the support block (119).

2. The positioning device for pre-welding the upper cover of a hydraulic cylinder housing according to claim 1, characterized in that: The top of the support rod (117) is rotatably connected to the bottom of the inner side of the support column (116).

3. The positioning device for pre-welding the upper cover of the hydraulic cylinder housing according to claim 1, characterized in that: The support column (116) has a slot inside that is adapted to the support block (119).

4. The positioning device for pre-welding the upper cover of the hydraulic cylinder housing according to claim 1, characterized in that: The outer side of the pressure block (120) is an arc-shaped surface.

5. The positioning device for pre-welding the upper cover of the hydraulic cylinder housing according to claim 1, characterized in that: The limiting mechanism includes a support frame (211), an electric cylinder (212), a connecting rod (213), and a clamping plate (214). The support frame (211) is welded to the top of the base (1). The electric cylinder (212) is installed on the outside of the support frame (211). One end of the connecting rod (213) is fixedly connected to the output end of the electric cylinder (212). The clamping plate (214) is fixedly connected to the other end of the connecting rod (213) by screws.

6. The positioning device for pre-welding the upper cover of the hydraulic cylinder housing according to claim 5, characterized in that: The card plate (214) is an arc-shaped plate.

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