U-shaped bolt cold machining manufacturing device

Abstract

The utility model discloses a U-shaped bolt cold machining manufacturing device which comprises a steel bar bender, a baffle ring and a supporting baffle, a working disc and a positioning square bar are arranged on the steel bar bender, a center hole and a plurality of bending holes are formed in the working disc, and a plurality of supporting holes are formed in the positioning square bar. The baffle ring is inserted into the center hole through a center pin shaft, and a bending pin shaft is inserted into the bending hole. The supporting baffle comprises a positioning assembly, a supporting assembly and a baffle body, the positioning assembly comprises a positioning pin shaft and a supporting plate, the supporting assembly comprises a supporting pin shaft and an adjusting rod, and the baffle body comprises a baffle body and a connecting piece. The baffle is installed at one end of the adjusting rod through a connecting piece, and a baffle body is attached to the inner side of the supporting plate. And the positioning pin shaft and the supporting pin shaft are inserted into the corresponding supporting holes. The device is simple in structure and convenient to use, the labor intensity is effectively reduced, and the safety coefficient and efficiency are improved; and meanwhile, U-shaped bolts with different diameters and different angles can be machined in a matched mode.

Description

A U-bolt cold working fabrication device Technical Field

[0001] This utility model relates to the field of U-bolt processing technology, specifically to a U-bolt cold processing device. Background Technology

[0002] U-bolts are commonly used components in underground coal mine production teams. They are U-shaped support devices primarily used for installation and fixing, often found in underground pipeline fixing and wire rope securing. The materials used are almost always low-carbon steel. The strength and precision requirements for U-bolts needed underground are not high; meeting the basic requirements is sufficient. Typically, mines manufacture them internally, but this results in inconsistent sizes, making each production time-consuming and labor-intensive. Generally, machining companies use gas cutting to heat the machined double-ended studs to a red-hot state (using a flame from a mixture of oxygen and acetylene to rapidly heat them), then manually bend them, and finally quench them and immediately cool them with water. Otherwise, severe surface deformation and cracking can occur, affecting their usability. This manufacturing method is cumbersome, wasteful of manpower, and poses certain safety hazards. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of the existing technology and provide a device for cold processing of U-bolts.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a U-bolt cold working device, including a rebar bending machine, a detachable retaining ring, and a support baffle. The rebar bending machine has a working disc and a positioning bar above it. The working disc has a central hole and multiple bending holes, and the positioning bar has multiple support holes. The retaining ring is inserted into the central hole of the working disc via a central pin. The multiple bending holes are arranged in an array, and at least one bending pin is inserted into a bending hole. The support baffle includes a positioning component, a support component, and a detachable baffle. The positioning component includes a positioning pin and a support plate, and the support component includes a support pin and an adjusting rod. The adjusting rod is inserted laterally into the support pin. The baffle includes a baffle body and a connecting piece. The baffle is installed at one end of the adjusting rod via the connecting piece. The baffle body fits against the inner side of the support plate, and the positioning pin and the support pin are inserted into corresponding support holes.

[0005] Furthermore, in the above-mentioned positioning assembly, the positioning pin and the support plate are welded and fixed as an integral structure, and the support plate is located on the side wall of the positioning pin; the support pin is provided with a transverse threaded hole, and the outer side wall of the above-mentioned adjusting rod is provided with an external thread, which is threadedly connected to the support pin.

[0006] Furthermore, the baffle body has multiple different thicknesses, and each of them has a ring on its rear side, which fits perfectly onto the support plate. A connecting member is welded to the rear side wall of the baffle body, and the end of the connecting member has a connecting hole. Correspondingly, the end of the support plate has a transverse opening groove, and the connecting member can be slidably installed in the transverse opening groove.

[0007] Furthermore, the angle between the connecting center axis of the connector and the adjusting rod and the baffle body is 20°.

[0008] Furthermore, the retaining ring is available in multiple different diameter and height models, and each of them has a central through hole at the vertical central axis position that matches the central pin.

[0009] Furthermore, a bending plate is fixedly installed on the bending pin.

[0010] Furthermore, two of the aforementioned positioning bars are provided, symmetrically arranged on the rebar bending machine next to the working disc.

[0011] Furthermore, the multiple bending holes on the aforementioned working disc are arranged in a rectangular array, evenly distributed around the central hole.

[0012] Compared with the prior art, the present invention has the following advantages: The present invention has a simple structure and is easy to use. It can be processed by a single person through cold treatment of electromechanical equipment, which reduces labor intensity and improves safety and efficiency. At the same time, by changing the retaining rings of different diameters and the support baffles of different thicknesses, U-bolts of different diameters and angles can be processed to meet the needs of underground coal mine production. Attached Figure Description

[0013] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 is a schematic diagram of retaining rings of different specifications in this utility model;

[0015] Figure 3 is a schematic diagram of the supporting baffle in this utility model;

[0016] Figure 4 is a schematic diagram of the structure of the baffle in this utility model;

[0017] In the diagram: 1. Rebar bending machine; 2. Retaining ring; 3. Center pin; 4. Pressing pin; 5. Pressing plate; 6. Support baffle; 11. Working disc; 12. Positioning bar; 13. Pressing hole; 14. Support hole; 61. Positioning shaft; 62. Support plate; 63. Supporting pin; 64. Adjusting rod; 65. Baffle body; 66. Ring sleeve; 67. Connecting piece. Detailed Implementation

[0018] It should be noted that in the description of this utility model, terms such as "upper", "lower", "left", "right", "front", and "rear" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship of each component in this utility model and do not specifically mean that any component in this utility model must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as a limitation on this utility model.

[0019] Furthermore, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0021] As shown in Figure 1, a U-bolt cold forming device includes a rebar bending machine 1, a detachable retaining ring 2, and a support baffle 6. The rebar bending machine 1 has a working disc 11 and positioning bars 12 above it. The bottom of the working disc 11 is fixed to a vertical shaft, and the lower end of the vertical shaft is connected to a motor. After deceleration via a single-stage V-belt drive and a three-stage gear drive, the working disc 11 can rotate horizontally. The upper surface of the working disc 11 has a central hole and multiple bending holes 13. The central hole is located at the center of the working disc 11, and the multiple bending holes 13 are arranged in a rectangular array, evenly distributed around the central hole. Two positioning bars 12 are provided, symmetrically arranged, located on the body of the rebar bending machine 1 next to the working disc 11, and fixed with bolts. Each positioning bar 12 has multiple support holes 14 on its upper surface, arranged along its length.

[0022] Referring to Figure 2, the retaining ring 2 is available in several sizes with different diameters and heights. Each of these retaining rings has a coaxial central through hole at its vertical central axis position, which can be inserted and fixed to the central hole of the working disc 11 by a matching central pin 3.

[0023] A suitable bending pin 4 is inserted into the bending hole 13 on the working disc 11. In order to improve the bending effect and safety protection, a bending plate 5 is welded and fixed on the bending pin 4, and the two bending pins 4 are used for positioning, fixing and support.

[0024] Referring to Figures 3 and 4, the support baffle 6 includes a positioning assembly, a support assembly, and a detachable and replaceable baffle. The positioning assembly includes a positioning pin 61 and a support plate 62. The support plate 62 is vertically welded and fixed to the side wall of the positioning pin 61 and can be integrally formed. A transverse opening slot is provided at the end of the support plate 62. The support assembly includes a support pin 63 and an adjusting rod 64. The side wall of the support pin 63 is provided with a transverse through-hole, which is a threaded hole. The outer side wall of the adjusting rod 64 is provided with external threads, which are inserted into and threadedly connected to the adjusting hole. The baffle includes a baffle body 65 and a connector 67. The connector 67 is welded and fixed to the rear center of the baffle body 65, and is inclined. The included angle between the connector 67 and the baffle body 65 is approximately 20°, which ensures that when connected to the adjusting rod, the corresponding support pin 63 and positioning pin 61 are inserted into two adjacent support holes 14. A ring 66 is also fixed to the rear side of the baffle body 65. The internal space of the ring 66 is the same shape and size as the support plate 62. The baffle is fitted onto the support plate 62 through the ring 66. The baffle body 65 is located on the front side of the support plate 62 and fits tightly against it. The connector 67 is installed in the transverse opening groove of the support plate 62. The end side of the connector 67 is provided with a coaxial connection hole and is threadedly fixed to the end of the adjusting rod 64. In use, the positioning pin 61 and the support pin 63 are inserted into the corresponding support holes 14 on the single-sided positioning square bar 12, and the baffle body 65 faces the rotation direction of the working disk 11.

[0025] Furthermore, the baffle body 65 of the above-mentioned baffle has multiple different thickness models, and each of them is provided with a ring 66 on the rear side, which can be adapted to be installed on the support plate 62, and can be matched with the retaining ring 2 of different models, and can be adapted to the processing and manufacturing of U-bolts of different sizes.

[0026] In use, the initial position of the bending pin 4 on the working disc 11 is on the same plane as the baffle body 65 in the aforementioned support baffle 6; then, the reinforcing bar is placed on the working disc 11 on the front side of the baffle body 65, with the reinforcing bar extending forward around the outer circumference of the retaining ring 2; the working disc 11 rotates, and the bending pin 4 and bending plate 5 are used to bend the reinforcing bar to form the required U-bolt. This method can greatly improve manufacturing efficiency, reduce the risk factor, and reduce labor intensity.

[0027] The technical features not described in detail in the above embodiments can be achieved by adopting or referencing relevant technical solutions in the prior art.

[0028] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A device for cold working of a U-bolt, characterized in that: The system includes a rebar bending machine, a detachable retaining ring, and a support baffle. The rebar bending machine has a working disc and a positioning bar at its top. The working disc has a central hole and multiple bending holes, and the positioning bar has multiple support holes. The retaining ring is inserted into the central hole of the working disc via a central pin. The multiple bending holes are arranged in an array, with a bending pin inserted into at least one bending hole. The support baffle includes a positioning component, a support component, and a detachable baffle. The positioning component includes a positioning pin and a support plate, and the support component includes a support pin and an adjusting rod. The adjusting rod is inserted laterally into the support pin. The baffle includes a baffle body and a connector. The baffle is installed at one end of the adjusting rod via the connector. The baffle body fits against the inner side of the support plate, and the positioning pin and support pin are inserted into corresponding support holes.

2. The device for cold working of U-bolts according to claim 1, characterized in that: In the above-mentioned positioning assembly, the positioning pin and the support plate are welded and fixed as a whole, and the support plate is located on the side wall of the positioning pin; the support pin is provided with a transverse threaded hole, and the outer side wall of the above-mentioned adjusting rod is provided with an external thread, which is threadedly connected to the support pin.

3. The device for cold working of U-bolts according to claim 2, characterized in that: The baffle body has multiple thicknesses, and each has a ring on its rear side, which fits perfectly onto the support plate. A connecting member is welded to the rear wall of the baffle body, and the end of the connecting member has a connecting hole. Correspondingly, the end of the support plate has a transverse opening groove, and the connecting member can be slidably installed in the transverse opening groove.

4. The U-bolt cold working device according to claim 3, characterized in that: The angle between the connecting center axis of the connector and the adjusting rod and the baffle body is 20°.

5. The U-bolt cold working fabrication device according to claim 1, characterized in that: The retaining ring is available in multiple different diameter and height models, and each of them has a central through hole at the vertical central axis position that matches the central pin.

6. The device for cold working of U-bolts according to claim 1, characterized in that: A bending plate is fixedly installed on the bending pin.

7. The device for cold working of U-bolts according to claim 1, characterized in that: The aforementioned positioning bars are provided in two symmetrical positions on the rebar bending machine located beside the working disc.

8. The U-bolt cold working device according to claim 1, characterized in that: The aforementioned working disc has multiple bending holes arranged in a rectangular array, evenly distributed around the central hole.

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