Fixture for diaphragm compressor autogenous welding

Abstract

The utility model discloses a diaphragm compressor autogenous welding clamp relates to clamp technical field, including connecting seat, lower base, upper clamping seat and limit subassembly, connecting seat both sides symmetry is provided with lower base, connecting seat middle sliding chute is connected with the locating plate in sliding mode, one side of lower base top is hinged with the upper clamping seat through the hinge, and the limit subassembly is connected with the upper clamping seat through the hinge. The other side of the upper clamping base is detachably connected with the lower base through a limiting assembly, and the lower base and the upper clamping base are each provided with a first semicircular stepped hole. The requirement for the clamping face of the clamp is shorter, the clamp can be suitable for clamping the self-fusion welding conditions of short thin-walled pipes, connectors and the like, mounting holes of the clamping pieces on the lower base and the upper clamping base are optimized from the radial direction to the axial direction, the machining difficulty is greatly reduced, the clamping pieces are replaceable, the clamp can adapt to the self-fusion welding conditions of different pipe diameters, and the machining efficiency is improved. The center positioning is more accurate and convenient relative to visual observation of the test block through the positioning plate capable of being pulled away.

Description

Technical Field

[0001] The utility model relates to the technical field of clamps, in particular to a clamp for self-melting welding of a diaphragm compressor. Background Art

[0002] Diaphragm compressor is commonly used to transport various high-purity gases, precious rare gases, toxic and harmful gases, and corrosive gases. As an irreplaceable positive displacement compressor, it will have more extensive applications with the progress and development of science and technology and the continuous improvement of people's living standards.

[0003] The current clamps used for autogenous welding in diaphragm compressors are not suitable for welding shorter pipes or fittings of different diameters, and the centering is visually inspected with a comparison test block, which increases the influence of human judgment on the centering effect. Summary of the Invention

[0004] The purpose of the utility model is to provide a clamp for self-melting welding of a diaphragm compressor to overcome the above-mentioned defects in the prior art.

[0005] A fixture for self-fusing welding of a diaphragm compressor includes a connecting seat, a lower base, an upper clamping seat and a limit assembly. The lower bases are symmetrically provided on both sides of the connecting seat, and a positioning plate is slidably connected to the slide groove in the middle of the connecting seat. One side of the top of the lower base is hinged to the upper clamping seat by a hinge, and the other side of the upper clamping seat is detachably connected to the lower base by a limit assembly. A semicircular stepped hole is provided on both the lower base and the upper clamping seat.

[0006] Preferably, the limiting assembly includes a lower buckle, an upper buckle and a fixing pin. The lower buckle is arranged on the side of the lower base and has a slot on it. The upper buckle is arranged on the side of the upper clamp seat and corresponds to the lower buckle. The lower buckle and the upper buckle are both provided with pin holes for inserting the fixing pin.

[0007] Preferably, the lower base is fixed to the connecting seat by a plurality of bolts.

[0008] Preferably, each stepped hole is connected with a clip via bolts.

[0009] Preferably, each clip is a semicircular structure and is provided with a semicircular stepped hole 2 thereon.

[0010] The beneficial effects achieved by the utility model are:

[0011] 1. The clamping surface of the clamp in this application is required to be shorter, and it can be used for autogenous welding of short thin-walled pipes, joints, etc.

[0012] 2. The mounting holes of the clips on the lower base and upper clamping seat are optimized from radial holes to axial holes, which greatly reduces the processing difficulty. The clips are replaceable and can adapt to the autogenous welding conditions of different pipe diameters.

[0013] 3. The center positioning is more accurate and convenient than the test block visually through the removable positioning plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0015] Figure 2 It is a side view of the present utility model.

[0016] Figure 3 It is a structural schematic diagram of the lower base of the utility model.

[0017] Figure 4 This is a schematic structural diagram of the clip of the utility model.

[0018] Figure 5 This is a schematic structural diagram of the limit assembly of the utility model.

[0019] Figure 6 It is a structural schematic diagram of the upper buckle of the utility model.

[0020] Figure 7 It is a structural schematic diagram of the lower buckle of the utility model.

[0021] In the figure, 1. Connecting seat; 11. Slide groove; 2. Lower base; 21. Step hole 1; 3. Positioning plate; 4. Hinge; 5. Upper clamp seat; 6. Limiting assembly; 61. Lower buckle; 62. Slot; 63. Upper buckle; 631. Pin hole; 64. Fixing pin; 7. Clip; 71. Step hole 2. DETAILED DESCRIPTION

[0022] The following is a further detailed description of the specific implementation methods of the present invention by describing the embodiments with reference to the accompanying drawings, so as to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of the present invention.

[0023] like Figure 1-7As shown, the utility model provides a clamp for self-fusing welding of a diaphragm compressor, comprising a connecting seat 1, a lower base 2, an upper clamping seat 5 and a limit assembly 6. The lower base 2 is symmetrically provided on both sides of the connecting seat 1, and the lower base 2 is fixed to the connecting seat 1 by a plurality of bolts, so as to facilitate the disassembly and assembly of the lower base 2 on the connecting seat 1. A positioning plate 3 is slidably connected to the slide groove 11 in the middle of the connecting seat 1, and one side of the top of the lower base 2 is hinged to the upper clamping seat 5 by a hinge 4, and the other side of the upper clamping seat 5 is detachably connected to the lower base 2 by a limit assembly 6. A semicircular stepped hole 21 is provided on both the lower base 2 and the upper clamping seat 5.

[0024] It should be noted that the limiting assembly 6 includes a lower buckle 61, an upper buckle 63 and a fixing pin 64. The lower buckle 61 is arranged on the side of the lower base 2 and is provided with a slot 62. The upper buckle 63 is arranged on the side of the upper clamp seat 5 and corresponds to the lower buckle 61. The lower buckle 61 and the upper buckle 63 are both provided with a pin hole 631 for inserting the fixing pin 64.

[0025] In addition, each stepped hole 1 21 is connected to a clip 7 by a bolt, and each clip 7 is a semicircular structure and is provided with a semicircular stepped hole 2 71 thereon, which is convenient for different direct specific implementation methods and principles:

[0026] S1. First, place a section of pipe fitting in the stepped hole 1 21 of the lower base 2 and the stepped hole 2 71 of the clamping piece 7 on one side of the connecting base 1. Then, align the pipe fitting with one side of the positioning plate 3, and then rotate the upper clamping base 5 so that the upper clip 63 on the side of the upper clamping base 5 is inserted into the slot 62 on the lower clip 61 on the side of the lower base 2. Insert the fixing pin 64 into the pin hole 631 of the upper clip 63 and the lower clip 61 to complete the clamping of the workpiece.

[0027] S2, then pull the positioning plate 3 out of the sliding groove 11 on the connecting seat 1;

[0028] S3. Place another pipe section in the stepped hole 1 21 of the lower base 2 and the stepped hole 2 71 of the clamp 7 on the other side of the connecting base 1. Then align the pipe section with the end of the other pipe section to be welded. Rotate the upper clamp 5 so that the upper buckle 63 on the side of the upper clamp 5 is inserted into the slot 62 on the lower buckle 61 on the side of the lower base 2. Insert the fixing pin 64 into the pin hole 631 of the upper buckle 63 and the lower buckle 61 to complete the clamping of the workpiece.

[0029] S4. Then, the ends of the two pipe sections are welded together using welding equipment.

[0030] The above-described embodiments of the present invention do not limit the scope of protection of the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A clamp for self-fluxing welding of a diaphragm compressor, characterized by: The utility model comprises a connecting seat (1), a lower base (2), an upper clamping seat (5) and a limiting assembly (6), wherein the lower base (2) is symmetrically provided on both sides of the connecting seat (1), a positioning plate (3) is slidably connected in a sliding groove (11) in the middle of the connecting seat (1), one side of the top of the lower base (2) is hingedly connected to the upper clamping seat (5) through a hinge (4), and the other side of the upper clamping seat (5) is detachably connected to the lower base (2) through a limiting assembly (6), and a semicircular stepped hole (21) is provided on both the lower base (2) and the upper clamping seat (5).

2. A diaphragm compressor autogenous welding fixture according to claim 1, characterized in that: The limiting assembly (6) comprises a lower buckle (61), an upper buckle (63) and a fixing pin (64); the lower buckle (61) is arranged on the side of the lower base (2) and is provided with a slot (62); the upper buckle (63) is arranged on the side of the upper clamping seat (5) and corresponds to the lower buckle (61); and the lower buckle (61) and the upper buckle (63) are both provided with a pin hole (631) for inserting the fixing pin (64).

3. A diaphragm compressor autogenous welding fixture according to claim 1, characterized in that: The lower base (2) is fixed to the connecting base (1) via a plurality of bolts.

4. A diaphragm compressor autogenous welding fixture according to claim 1, characterized in that: Each stepped hole (21) is connected with a clip (7) via bolts.

5. A diaphragm compressor autogenous welding fixture according to claim 4, characterized in that: Each clip (7) is a semicircular structure and is provided with a second semicircular stepped hole (71).

Images