H-shaped steel rack welding clamp

Abstract

An H-shaped steel rack welding clamp comprises a clamp body (1), an adjusting bolt (2) and an adjusting block (3), clamping jaws (4) used for clamping H-shaped steel are movably arranged at the two ends of the clamp body (1) respectively, a rack positioning groove (5) is formed in the bottom of the clamp body (1), a guide protrusion (6) is arranged at the top of the clamp body (1), and a positioning hole communicated with the rack positioning groove (5) is formed in the middle of the guide protrusion (6). The adjusting block (3) is mounted on the guide bulge (6) in a sliding manner; the device has the advantages that the racks are accurately positioned, the clamping speed is high, and the labor intensity of workers is relieved.

Description

Technical Field

[0001] The utility model relates to the field of welding equipment, and particularly relates to an H-shaped steel rack welding fixture. Background Art

[0002] At present, on a soot blower production line, a rack needs to be welded to an H-shaped steel. Since the welding position of the rack is exactly at the center of the top of the H-shaped steel, the clamping and positioning speed of the existing welding fixture is slow, and there is a lack of a special welding fixture for H-shaped steel racks with a fast clamping and positioning speed. Summary of the Utility Model

[0003] The purpose of the utility model is to provide an H-shaped steel rack welding fixture aiming at the above deficiencies.

[0004] The utility model comprises a fixture body, adjusting bolts and adjusting blocks.

[0005] Claw holders for clamping the H-shaped steel are movably arranged at both ends of the fixture body. A rack positioning groove is formed at the bottom of the fixture body, and a guiding protrusion is arranged at the top of the fixture body. A positioning hole communicating with the rack positioning groove is formed in the middle of the guiding protrusion. The adjusting block is slidably mounted on the guiding protrusion. A threaded hole is formed at the top of the adjusting block, and the adjusting bolt is mounted in the threaded hole. The lower part of the adjusting bolt passes through the positioning hole and is located in the rack positioning groove. By rotating the adjusting bolt, the adjusting block slides up or down along the guiding protrusion. When the adjusting block slides up, a pair of claw holders are driven to clamp. When the adjusting block slides down, the pair of claw holders are opened.

[0006] Ear seats are respectively arranged at both ends of the fixture body, and the claw holders are movably mounted on the ear seats through pin shafts.

[0007] The claw holders are arc-shaped. Adjusting teeth are arranged at the upper part of the claw holders, and clamping teeth are arranged at the lower part of the claw holders.

[0008] Adjusting protrusions with a triangular cross-section are respectively arranged at both sides of the lower part of the adjusting block. When the adjusting block slides up, the adjusting teeth are jacked up by the adjusting protrusions, so that the claw holders rotate around the pin shafts, and the clamping teeth clamp on the H-shaped steel.

[0009] A rack pressing block is movably arranged at the end of the adjusting bolt, and the rack pressing block is located in the rack positioning groove.

[0010] A pin hole is formed at the end of the adjusting bolt, and a pressing groove is formed in the middle of the rack pressing block. A through hole is formed in the pressing groove. A pin is installed in the through hole in the pressing groove and in the pin hole of the adjusting bolt. The rack pressing block is held by the pin head, so that the rack pressing block rotates around the pin.

[0011] The adjusting bolt is a hexagonal bolt.

[0012] The advantages of the utility model are as follows: accurate rack positioning, fast clamping speed, and reduced labor intensity of workers. Description of the Drawings

[0013] Figure 1 This is a schematic structural view of the present utility model.

[0014] Figure 2 This is a schematic structural view of the present utility model above the H-shaped steel.

[0015] Figure 3 This is a schematic structural view of the present utility model for positioning and welding the rack on the H-shaped steel. Detailed Description of the Invention

[0016] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0018] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0019] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention. In addition, in the description of the present invention, if terms such as "first", "second", etc. are used only for distinguishing descriptions and cannot be construed as indicating or implying relative importance.

[0020] In the description of the embodiments of the present invention, it should also be noted that unless otherwise clearly specified and limited, if the terms "set" and "connected" are used, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0021] As shown in the attached drawings, the utility model includes a jig body 1, an adjusting bolt 2 and an adjusting block 3.

[0022] At both ends of the jig body 1, there are respectively movably arranged claws 4 for clamping the H-beam. A rack positioning groove 5 is opened at the bottom of the jig body 1, and a guiding protrusion 6 is arranged at the top of the jig body 1. A positioning hole communicating with the rack positioning groove 5 is opened in the middle of the guiding protrusion 6. The adjusting block 3 is slidably installed on the guiding protrusion 6. A threaded hole is opened at the top of the adjusting block 3, and the adjusting bolt 2 is installed in the threaded hole. The lower part of the adjusting bolt 2 passes through the positioning hole and is located in the rack positioning groove 5. Rotating the adjusting bolt 2 drives the adjusting block 3 to slide up or down along the guiding protrusion 6. When the adjusting block 3 slides up, it drives a pair of claws 4 to clamp. When the adjusting block 3 slides down, it makes a pair of claws 4 open.

[0023] Ear seats are respectively arranged at both ends of the jig body 1, and the claws 4 are movably installed on the ear seats through pin shafts.

[0024] The claw 4 is arc-shaped. An adjusting tooth 7 is arranged at the upper part of the claw 4, and a clamping tooth 8 is arranged at the lower part of the claw 4.

[0025] On both sides of the lower part of the adjusting block 3, there are respectively arranged adjusting protrusions 9 with a triangular cross-section. When the adjusting block 3 slides up, the adjusting tooth 7 is pushed up by the adjusting protrusion 9, so that the claw 4 rotates around the pin shaft, and the clamping tooth 8 clamps on the H-beam.

[0026] A rack pressing block 10 is movably arranged at the end of the adjusting bolt 2, and the rack pressing block 10 is located in the rack positioning groove 5.

[0027] A pin hole is opened at the end of the adjusting bolt 2, a pressing groove is opened in the middle of the rack pressing block 10, and a through hole is opened in the pressing groove. The pin passes through the through hole in the pressing groove and is installed in the pin hole of the adjusting bolt 2. The rack pressing block 10 is held by the pin head, so that the rack pressing block 10 rotates around the pin.

[0028] The adjusting bolt 2 is a hexagonal bolt.

[0029] Example 1: As attached Figure 2As shown, place the rack 101 at the center of the top of the H-beam 100. The welding fixture is located above the H-beam 100. Turn the knob to adjust the bolt 2 so that the adjusting block 3 moves along the guiding projection 6 to the lowest position, and a pair of jaws 4 open. As attached Figure 3 As shown, the welding fixture lands on the H-beam 100, the rack 101 is located in the rack positioning groove 5, and the top surface of the rack 101 is in contact with the rack pressing block 10. At this time, turn the knob to adjust the bolt 2 so that the adjusting block 3 moves upward along the guiding projection 6. When the adjusting projection 9 moves upward, the adjusting teeth 7 at the upper part of a pair of jaws 4 are pushed open to both sides, causing the jaws 4 to rotate around the pin shaft, and the locking teeth 8 at the lower part of the jaws 4 are stuck on the bottom surface of the top plate of the H-beam 100, fixing the rack 101 on the H-beam 100. When turning the knob to adjust the bolt 2, the rack pressing block 10 rotates around the pin, so that the adjusting bolt 2 can be pressed against the top of the rack 101 while rotating.

Claims

1. A welding fixture for H-shaped steel racks, characterized in that It includes a fixture body (1), an adjusting bolt (2) and an adjusting block (3). At both ends of the fixture body (1), there are movably arranged claws (4) for clamping the H-shaped steel. A rack positioning groove (5) is formed at the bottom of the fixture body (1), and a guiding protrusion (6) is arranged at the top of the fixture body (1). A positioning hole communicating with the rack positioning groove (5) is formed in the middle of the guiding protrusion (6). The adjusting block (3) is slidably installed on the guiding protrusion (6). A threaded hole is formed at the top of the adjusting block (3), and the adjusting bolt (2) is installed in the threaded hole. The lower part of the adjusting bolt (2) passes through the positioning hole and is located in the rack positioning groove (5). Rotating the adjusting bolt (2) drives the adjusting block (3) to slide up or down along the guiding protrusion (6). When the adjusting block (3) slides up, it drives a pair of claws (4) to clamp. When the adjusting block (3) slides down, it makes a pair of claws (4) open.

2. The H-shaped steel rack welding jig according to claim 1, characterized in that, Ear seats are respectively arranged at both ends of the fixture body (1), and the claws (4) are movably installed on the ear seats through pin shafts.

3. The H-shaped steel rack welding fixture according to claim 2, wherein, The claws (4) are arc-shaped. An adjusting tooth (7) is arranged at the upper part of the claw (4), and a clamping tooth (8) is arranged at the lower part of the claw (4).

4. The H-shaped steel rack welding fixture according to claim 3, characterized in that, On both sides of the lower part of the adjusting block (3), there are respectively arranged adjusting protrusions (9) with a triangular cross-section. When the adjusting block (3) slides up, the adjusting tooth (7) is jacked up by the adjusting protrusion (9), so that the claw (4) rotates around the pin shaft, and the clamping tooth (8) clamps on the H-shaped steel.

5. The H-shaped steel rack welding fixture according to claim 4, characterized in that, A rack pressing block (10) is movably arranged at the end of the adjusting bolt (2), and the rack pressing block (10) is located in the rack positioning groove (5).

6. The H-shaped steel rack welding fixture according to claim 5, wherein A pin hole is formed at the end of the adjusting bolt (2), and a pressing groove is formed in the middle of the rack pressing block (10). A through hole is formed in the pressing groove, and the pin is installed in the pin hole of the adjusting bolt (2) through the through hole in the pressing groove. The rack pressing block (10) is held by the pin head, so that the rack pressing block (10) rotates around the pin.

7. The H-shaped steel rack welding fixture according to claim 1, characterized in that, The adjusting bolt (2) is a hexagonal bolt.

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