A pressure vessel machining jig

Abstract

The utility model provides a kind of pressure vessel processing fixture, including processing table, the bottom of processing table is provided with support leg, and the support seat for being used to support pressure vessel is set on processing table, the top wall of support seat is arc, and the bottom of processing table is provided with mounting groove along left and right direction, two-way screw is rotatably arranged in mounting groove, and the both sides of two-way screw are respectively screwed with the mounting block of sliding connection with mounting groove, two mounting blocks are respectively provided with mounting bracket, mounting bracket is provided with the mounting plate capable of vertical lifting, and fixed clamping plate is rotatably arranged on mounting plate by pivot.The pressure vessel processing fixture according to the utility model not only can satisfy the basic demand of pressure vessel clamping fixation, but also can avoid the debris generated in the process of pressure vessel welding processing to easily fall on clamping structure, to further more fully satisfy people's use demand.

Description

Technical Field

[0001] This utility model belongs to the field of pressure vessel processing technology, and specifically relates to a pressure vessel processing fixture. Background Technology

[0002] A pressure vessel is a sealed device that holds gas or liquid and bears a certain pressure. It is usually in the shape of a cylindrical tank. In the production and processing of tank-shaped pressure vessels, the tank body and the end cap need to be initially welded and fixed before sealing welding. Fixtures are required to fix the pressure vessel.

[0003] Existing pressure vessel processing fixtures, while meeting the basic requirements for clamping and fixing pressure vessels, typically rely on a groove and lead screw structure for adjustment and drive. The groove opening and lead screw structure are often directly exposed, making it easy for debris generated during pressure vessel processing to fall into these structures. This hinders convenient adjustment of the clamping position and requires users to painstakingly clean debris from the groove and lead screw, thus failing to fully meet user needs. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing a pressure vessel processing fixture that not only meets the basic requirement of clamping and fixing pressure vessels, but also prevents debris generated during the welding process of pressure vessels from easily falling onto the clamping structure, thereby more fully meeting people's usage needs.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a pressure vessel processing fixture, including a processing table, a support leg provided at the bottom of the processing table, a support seat provided on the processing table for supporting the pressure vessel, the top wall of the support seat being arc-shaped, an installation groove provided at the bottom of the processing table along the left and right direction, a bidirectional screw rotatably provided in the installation groove, and installation blocks slidably connected to the installation groove being screwed to both sides of the bidirectional screw, and installation frames provided on the two installation blocks respectively, and installation plates capable of vertical lifting and lowering being provided on the installation frames, with fixed clamping plates rotatably provided on the installation plates via a rotating shaft.

[0006] As a further improvement of this utility model, a drive motor for driving the rotation of the bidirectional screw is provided on the mounting slot. The drive motor is a servo geared motor.

[0007] As a further improvement of this utility model, an adjusting screw is vertically screwed onto the mounting bracket. The lower end of the adjusting screw is rotatably connected to the mounting plate. The mounting plate is provided with a mounting sleeve that is slidably connected to the side end of the mounting bracket. A handle is also provided at the upper end of the adjusting screw.

[0008] As a further improvement of this utility model, at least one mounting bracket is also provided with a receiving groove, and a scale located in the receiving groove is provided on the mounting bracket. The inclusion of a receiving groove and a scale on some mounting brackets facilitates intuitive reading and adjustment of dimensions by operators, improving clamping efficiency and repeatability. As a further improvement of this utility model, a first locking bolt is screwed onto the mounting sleeve, which can abut against the outer wall of the mounting bracket to fix the connection between the mounting sleeve and the adjusting screw.

[0009] As a further improvement of this utility model, the processing table is also provided with guide slide rods located on the front and rear sides of the support base. The guide slide rods are U-shaped and their height is lower than that of the support base. The mounting bracket is provided with guide sleeves that are slidably connected to the guide slide rods.

[0010] As a further improvement of this utility model, at least one guide sleeve is also screwed with a second locking bolt that abuts against the guide rod to fix the connection between the guide sleeve and the guide rod. The sliding fit structure between the U-shaped guide rod and the guide sleeve effectively guides the left and right movement trajectory of the mounting bracket and prevents deviation; the second locking bolt can be used to lock the position of the guide sleeve, further improving the rigidity and stability of the overall structure.

[0011] As a further improvement of this utility model, a protective pad is also provided on the inner wall of the fixing clamp, and the protective pad is also provided with anti-slip texture. The protective pad can prevent the fixing clamp from causing damage to the end of the pressure vessel; the anti-slip texture can improve the clamping stability of the fixing clamp on the pressure vessel.

[0012] As a further improvement of this utility model, an extension plate is also provided at the bottom side of the support leg, and an anchor bolt for connecting to the ground is provided on the extension plate. The anchor bolts on the extension plate extending from the bottom of the support leg can firmly fix the entire processing fixture to the ground, prevent overall shaking during processing, and enhance operational safety and stability.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: Firstly, by setting up a support base with an arc-shaped top wall, it can fit well with the shape of the outer wall of the pressure vessel and provide stable support; together with the adjustable fixing plates on both sides, it can effectively clamp the pressure vessel, prevent it from shifting or vibrating during welding, and improve processing accuracy and safety.

[0014] Secondly, by setting up a support base with an arc-shaped top wall, it can fit well with the shape of the outer wall of the pressure vessel and provide stable support; together with the adjustable fixing plates on both sides, it can effectively clamp the pressure vessel, prevent it from shifting or vibrating during welding, and improve processing accuracy and safety.

[0015] Thirdly, the design of using a two-way screw in conjunction with two mounting blocks allows the mounting brackets on both sides to move inward or outward simultaneously, ensuring a uniform distribution of clamping force, convenient operation, and precise positioning. It is suitable for the processing needs of pressure vessels with different axial lengths, enhancing the versatility of the fixture.

[0016] Fourth, by adjusting the screw, installing the sliding sleeve and tightening the handle, the vertical lifting adjustment of the mounting plate (and thus fixing the clamping plate) can be realized to meet the clamping requirements of pressure vessels of different diameters; at the same time, a first locking bolt is provided to ensure that the structure is stable and does not loosen after adjustment. Attached Figure Description

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the mounting groove, bidirectional screw, mounting block, and mounting bracket of this utility model; Figure 3 This is a structural schematic diagram of the mounting bracket, mounting plate, mounting sleeve, and first locking bolt of this utility model; Figure 4 This is a schematic diagram of the mounting bracket, guide slide rod, guide slide sleeve, and second locking bolt of this utility model.

[0019] In the diagram: 101, processing table; 102, support leg; 103, support base; 104, mounting slot; 105, double-acting screw; 106, mounting block; 107, mounting bracket; 108, mounting plate; 109, rotating shaft; 110, fixing clamp; 111, drive motor; 112, protective pad; 113, anti-slip texture; 114, extension plate; 115, anchor bolt; 201, adjusting screw; 202, bearing; 203, mounting sleeve; 204, handle; 205, receiving groove; 206, scale; 207, first locking bolt; 301, guide slide rod; 302, guide sleeve; 303, second locking bolt. Detailed Implementation

[0020] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0021] like Figure 1 ,2 As shown, a pressure vessel processing fixture includes a processing table 101, a support leg 102 at the bottom of the processing table 101, a support base 103 for supporting the pressure vessel on the processing table 101, the top wall of the support base 103 being arc-shaped, an installation groove 104 at the bottom of the processing table 101 along the left-right direction, a bidirectional screw 105 rotatably disposed in the installation groove 104, and installation blocks 106 slidably connected to the installation groove 104 respectively screwed to both sides of the bidirectional screw 105, and installation frames 107 respectively disposed on the two installation blocks 106, and installation plates 108 capable of vertical lifting and lowering disposed on the installation frames 107, and a fixing clamp 110 rotatably disposed on the installation plate 108 via a rotating shaft 109.

[0022] like Figure 2 As shown, a drive motor 111 for rotating the bidirectional screw 105 is provided on the mounting slot 104. The drive motor 111 is a servo geared motor.

[0023] like Figure 2 As shown, an adjusting screw 201 is vertically screwed onto the mounting bracket 107. The lower end of the adjusting screw 201 is rotatably connected to the mounting plate 108 via a bearing 202. The mounting plate 108 is provided with a mounting sleeve 203 that is slidably connected to the side end of the mounting bracket 107. The upper end of the adjusting screw 201 is also provided with a handle 204.

[0024] like Figure 1 , 2 As shown, at least one mounting bracket 107 is also provided with a receiving groove 205, and a scale 206 located in the receiving groove 205 is provided on the mounting bracket 107. The receiving groove 205 and the scale 206 on some mounting brackets 107 facilitate the operator to read and adjust the dimensions intuitively, improve clamping efficiency and repeatability accuracy; the receiving groove 205 also prevents the scale 206 from easily wearing out.

[0025] like Figure 1 , 4 As shown, the processing table 101 is also provided with guide slide rods 301 located on the front and rear sides of the support base 103. The guide slide rods 301 are U-shaped and their height is lower than that of the support base 103. The mounting bracket 107 is provided with guide sleeves 302 that are slidably connected to the guide slide rods 301.

[0026] like Figure 1 As shown, a protective pad 112 is also provided on the inner wall of the fixing clamp 110, and the protective pad 112 is also provided with anti-slip texture 113. The protective pad 112 can prevent the fixing clamp 110 from causing damage to the end of the pressure vessel; the anti-slip texture 113 can improve the clamping stability of the fixing clamp 110 on the pressure vessel.

[0027] Workers can move the pressure vessel workpiece, after the tank body and head have been preliminarily welded and fixed, onto the processing table 101 and place it on the support base 103. Since the top wall of the support base 103 is arc-shaped, it can fit well with the outer wall of the pressure vessel, providing stable support and preventing the pressure vessel from easily rolling off the support base 103.

[0028] Then, the adjusting screw 201 can be moved up and down in the mounting bracket 107 by manually rotating the handle 204 at the upper end of the adjusting screw 201. Since the lower end of the adjusting screw 201 is rotatably connected to the mounting plate 108 through the bearing 202, it can drive the mounting plate 108 to rise and fall in the vertical direction, so that the rotating shaft 109 and the fixed clamping plate 110 are in sync with the central axis of the pressure vessel; the mounting sleeve 203 on the mounting plate 108 slides in sync with the side wall of the mounting bracket 107, which serves as a guide.

[0029] The drive motor 111 (servo geared motor) in the mounting slot 104 can be activated to drive the bidirectional screw 105 to rotate. Mounting blocks 106 are screwed to both sides of the bidirectional screw 105. As the screw rotates, the two mounting blocks 106 slide synchronously inward or outward in the mounting slot 104, thereby moving the mounting frame 107 on them. This process allows the two fixed clamping plates 110 to move synchronously closer or further apart to accommodate pressure vessels of different axial lengths. The mounting frame 107 is equipped with a guide sleeve 302, which slides in conjunction with the U-shaped guide rod 301 on the processing table 101 to ensure that the mounting frame 107 remains stable and does not deviate during movement. Once the appropriate position is reached, the guide sleeve 302 can be fixed to the guide rod 301 by tightening the second locking bolt 303 to enhance structural rigidity.

[0030] Then, welding can be performed on the part of the pressure vessel located on the upper side of the support base 103; and it is rotatably connected to the mounting plate 108 via the fixed clamp 110 through the rotating shaft 109, so the rotating shaft 109, the fixed clamp 110 and the pressure vessel can be rotated and adjusted together, so that other parts of the pressure vessel can be switched to the upper side of the support base 103, which is convenient for continuing welding.

[0031] After the welding process is completed, the bidirectional screw 105 can be driven to rotate in the opposite direction by the drive motor 111, which will drive the fixed clamps 110 on both sides to move away from each other, release the clamping and fixing of the pressure vessel, and then the vessel can be removed from the support base 103. Because the height of the guide slide rod 301 is lower than that of the support base 103, it can avoid interfering with the loading and unloading process of the pressure vessel.

[0032] According to another embodiment of the present invention, such as Figure 3As shown, a first locking bolt 207 is screwed onto the mounting sleeve 203, which abuts against the outer wall of the mounting bracket 107 to fix the connection between the mounting sleeve 203 and the adjusting screw 201. After the mounting plate 108 is adjusted to a suitable height, the first locking bolt 207 is tightened and abuts against the outer wall of the mounting bracket 107 to lock the connection position between the mounting sleeve 203 and the adjusting screw 201, preventing loosening and ensuring subsequent clamping stability. When the vertical height of the mounting plate 108, the rotating shaft 109 and the fixed clamping plate 110 needs to be adjusted, simply loosen the first locking bolt 207 to release the fixation of the connection between the mounting sleeve 203 and the mounting bracket 107.

[0033] According to another embodiment of the present invention, such as Figure 4 As shown, at least one guide sleeve 302 is also screwed with a second locking bolt 303 that abuts against the guide rod 301 to fix the connection between the guide sleeve 302 and the guide rod 301. After the pressure vessel is clamped and fixed by the fixed clamping plate 110 driven by the drive motor 111, the second locking bolt 303 can be tightened to abut against the outer wall of the guide rod 301 to lock the connection between the guide sleeve 302 and the guide rod 301, thereby further improving the rigidity and stability of the overall structure. When it is necessary to adjust the position of the fixed clamping plate 110 in the left and right directions, it is only necessary to loosen the second locking bolt 303 to release the fixation of the connection between the mounting bracket 107 and the guide rod 301.

[0034] According to another embodiment of the present invention, such as Figure 1 As shown, the bottom side of the support leg 102 is also provided with an extension plate 114, and the extension plate 114 is also provided with anchor bolts 115 for connecting to the ground. The worker can make the anchor bolts 115 pass through the extension plate 114 and connect to the anchor threaded cylinder in the ground, thereby firmly fixing the entire processing fixture to the ground, preventing the overall shaking during the processing, and enhancing the safety and stability of the operation.

[0035] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A pressure vessel machining fixture, comprising a machining table (101), characterized in that: The bottom of the processing table (101) is provided with a support leg (102), and a support seat (103) for supporting the pressure vessel is provided on the processing table (101). The top wall of the support seat (103) is arc-shaped. The bottom of the processing table (101) is provided with a mounting groove (104) along the left and right direction. A double-acting screw (105) is rotatably provided in the mounting groove (104). The two sides of the double-acting screw (105) are respectively screwed with mounting blocks (106) that are slidably connected to the mounting groove (104). Mounting frames (107) are respectively provided on the two mounting blocks (106). Mounting plates (108) that can be vertically lifted and lowered are provided on the mounting frames (107). Fixed clamps (110) are rotatably provided on the mounting plates (108) through a rotating shaft (109).

2. The pressure vessel machining fixture as described in claim 1, characterized in that: The mounting slot (104) is provided with a drive motor (111) for rotating the bidirectional screw (105), and the drive motor (111) is a servo geared motor.

3. The pressure vessel machining fixture as described in claim 2, characterized in that: An adjusting screw (201) is vertically screwed onto the mounting bracket (107). The lower end of the adjusting screw (201) is rotatably connected to the mounting plate (108). The mounting plate (108) is provided with a mounting sleeve (203) that is slidably connected to the side end of the mounting bracket (107). The upper end of the adjusting screw (201) is also provided with a handle (204).

4. The pressure vessel machining fixture as described in claim 3, characterized in that: At least one of the mounting brackets (107) is also provided with a receiving groove (205), and a scale (206) located in the receiving groove (205) is provided on the mounting bracket (107).

5. The pressure vessel machining fixture as described in claim 4, characterized in that: The mounting sleeve (203) is also screwed with a first locking bolt (207) that can abut against the outer wall of the mounting bracket (107) to fix the connection between the mounting sleeve (203) and the adjusting screw (201).

6. The pressure vessel machining fixture as described in claim 1, characterized in that: The processing table (101) is also provided with guide slide rods (301) located on the front and rear sides of the support base (103). The guide slide rods (301) are U-shaped and their height is lower than that of the support base (103). The mounting bracket (107) is provided with guide sleeves (302) that are slidably connected to the guide slide rods (301).

7. The pressure vessel machining fixture as described in claim 6, characterized in that: At least one of the guide sleeves (302) is also screwed with a second locking bolt (303) that can abut against the guide rod (301) to fix the connection between the guide sleeve (302) and the guide rod (301).

8. The pressure vessel machining fixture as described in claim 1, characterized in that: The inner wall of the fixed clamp (110) is also provided with a protective pad (112), and the protective pad (112) is also provided with anti-slip texture (113).

9. The pressure vessel machining fixture as described in claim 1, characterized in that: The bottom side of the support leg (102) is also provided with an extension plate (114), and the extension plate (114) is also provided with anchor bolts (115) for connecting to the ground.

Images