Clamping fixture for compounding titanium steel composite pipe

Abstract

The utility model provides a clamping fixture for compounding a titanium steel composite pipe, and belongs to the technical field of fixtures. Comprising a semicircular lower clamping die and a semicircular upper clamping die which are equal in inner diameter and outer diameter, the lower portion of the semicircular lower clamping die is fixedly connected with a lower clamping die base, the lower portion of the lower clamping die base is fixedly connected with a lower clamping die connecting plate, and the lower clamping die connecting plate is used for being fixedly connected with a working platform on a press machine; the upper portion of the semicircular upper clamping die is fixedly connected with an upper clamping die base, the upper portion of the upper clamping die base is fixedly connected with an upper clamping die connecting plate, the upper clamping die connecting plate is used for being fixedly connected with a hydraulic component on the upper portion of a press machine, and the semicircular lower clamping die and the semicircular upper clamping die directly face each other up and down and form an annular structure after die assembly. The clamping fixture is designed and manufactured for manufacturing the titanium steel composite pipe, the titanium pipe can be tightly clamped on the steel pipe, the tight fitting degree of the titanium pipe and the steel pipe is guaranteed, it can be guaranteed that seams of the titanium pipe are right aligned, then seam welding is conducted, and the machining quality of the composite pipe is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamps, and in particular relates to a clamping clamp for compositing titanium-steel composite pipes. Background Art

[0002] Steel pipes for engineering projects such as machinery, petrochemicals, power plant chimneys, and environmental protection require excellent mechanical and physical properties of the materials, as well as good corrosion resistance, long service life, and low price. As a single material, it is difficult to meet the above requirements at the same time, and composite steel pipes are an effective way to solve the above problems. Titanium-steel composite pipes have the excellent properties of both materials. Titanium has good corrosion resistance, and steel pipes have good mechanical properties. At the same time, they save costs compared to all titanium pipes, so they are promoted and used in various industries. When titanium-steel composite pipes are made, the titanium tube is tightly wrapped around the outside of the steel pipe. The steel pipe inside is an integral round pipe. The titanium tube is rolled into a tube by a plate rolling machine before wrapping, but the edge is not welded and fixed first. Instead, the titanium tube is sleeved on the outside of the steel pipe and the gap is welded after the wrapping is tight. After the titanium tube is wrapped around the outside of the steel pipe, the traditional method is to tighten the titanium tube on the steel pipe with steel wire, and then weld the gap. However, since the tightening force of the steel wire rope is uncontrollable, it may lead to the failure to tighten the titanium tube, large welding gap, and the titanium material and the steel tube cannot be well attached, thus affecting the product quality. Therefore, it is necessary to propose improvements. Utility Model Content

[0003] The technical problem solved by the utility model is to provide a clamping fixture for titanium-steel composite pipes. The utility model aims to design and manufacture a clamping fixture for the production of titanium-steel composite pipes, which can tightly clamp the titanium pipe on the steel pipe to ensure the close fit between the titanium pipe and the steel pipe, thereby greatly improving the fit and processing quality of the composite pipe.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A clamping fixture for titanium-steel composite pipe composite comprises a semicircular lower clamp and a semicircular upper clamp with equal inner and outer diameters, wherein the lower portion of the semicircular lower clamp is fixedly connected to a lower clamp seat, and the lower portion of the lower clamp seat is fixedly connected to a lower clamp connecting plate, and the lower clamp connecting plate is used to be fixedly connected to a working platform on a press; the upper portion of the semicircular upper clamp is fixedly connected to an upper clamp seat, and the upper portion of the upper clamp seat is fixedly connected to an upper clamp connecting plate, and the upper clamp connecting plate is used to be fixedly connected to a hydraulic component on the upper portion of the press, and the semicircular lower clamp and the semicircular upper clamp are directly opposite to each other up and down and form a circular ring structure after the mold is closed.

[0006] Among them, it also includes a semicircular ring lower clamping module and a semicircular ring upper clamping module with equal inner and outer diameters. The semicircular ring lower clamping module and the semicircular ring upper clamping module can be made into multiple groups according to the outer diameter specifications of the clamped titanium-steel composite pipe. Among the semicircular ring lower clamping modules and the semicircular ring upper clamping modules of adjacent specifications, the outer diameter of the smaller specification is adapted to the same as the inner diameter of the larger specification.

[0007] Furthermore, the semicircular ring lower clamping module and the semicircular ring upper clamping module are coaxially fixedly sleeved in the semicircular ring lower clamping mold and the semicircular ring upper clamping mold respectively when in use.

[0008] Furthermore, the semicircular ring lower clamping module and the semicircular ring upper clamping module are both fixedly connected to the corresponding semicircular ring lower clamping mold and the semicircular ring upper clamping mold respectively by using fixing bolt assemblies.

[0009] Furthermore, the semicircular ring lower clamping mold and the semicircular ring upper clamping mold, as well as the semicircular ring lower clamping module and the semicircular ring upper clamping module are provided with fixing holes for bolt connection, and the fixing holes are provided with countersunk grooves at one end of the inner diameter of the semicircular ring lower clamping module and the semicircular ring upper clamping module.

[0010] The advantages of this utility model compared with the prior art:

[0011] 1. This scheme designs and manufactures a clamping fixture for the production of titanium-steel composite pipes. The lower semicircular clamping die and the upper semicircular clamping die are fixed on the press. The two halves of the clamp structure can clamp the titanium pipe tightly on the steel pipe, tighten the titanium pipe, ensure the close fit between the titanium pipe and the steel pipe, and ensure that the joint of the titanium pipe is just right, and then perform gap welding, thereby greatly improving the processing quality of the composite pipe;

[0012] 2. In this scheme, a semicircular ring lower clamping module and a semicircular ring upper clamping module are manufactured to be fixedly connected to the semicircular ring lower clamping die and the semicircular ring upper clamping die respectively, so as to clamp titanium-steel composite pipes of different diameters. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0014] Figure 2 It is a schematic diagram of the structure after cutting of the utility model;

[0015] Figure 3 It is a left-side structural diagram of the utility model;

[0016] Figure 4 It is a schematic diagram of the structure of clamping the titanium steel composite pipe when the utility model is in use;

[0017] Figure 5 This is a schematic diagram of the structure of the upper and lower clamp modules using a semicircular ring in the utility model;

[0018] Figure 6 For the utility model Figure 5 Left view of the structure. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0021] See also Figure 1-6 , describe the embodiments of the present utility model in detail.

[0022] Example: Clamping fixture for titanium steel composite pipe, see Figure 1 , Figure 2 , Figure 3 As shown, it includes a semicircular lower clamp 1 and a semicircular upper clamp 2 with equal inner and outer diameters, the lower portion of the semicircular lower clamp 1 is fixedly connected to a lower clamp seat 3, the lower portion of the lower clamp seat 3 is fixedly connected to a lower clamp connecting plate 4, and the lower clamp connecting plate 4 is used to be fixedly connected to a working platform on a press; the upper portion of the semicircular upper clamp 2 is fixedly connected to an upper clamp seat 5, the upper portion of the upper clamp seat 5 is fixedly connected to an upper clamp connecting plate 6, and the upper clamp connecting plate 6 is used to be fixedly connected to a hydraulic component on the upper portion of a press, the semicircular lower clamp 1 and the semicircular upper clamp 2 are directly opposite to each other up and down and form a circular ring structure after the mold is closed.

[0023] Through the above embodiment: the clamping fixture is designed and manufactured for the production of titanium steel composite pipes. When used, the lower semicircular clamping die 1 and the upper semicircular clamping die 2 are fixed on the press. Figure 4 As shown, the two-half structure of the clamp can clamp the titanium tube 13 tightly on the steel tube 12, shrink the titanium tube, ensure the close fit between the titanium tube and the steel tube, and ensure that the joints of the titanium tube are just aligned before welding, thereby greatly improving the processing quality of the composite tube.

[0024] In a specific implementation: see Figure 5 As shown, it also includes a semicircular ring lower clamping module 7 and a semicircular ring upper clamping module 8 with equal inner and outer diameters. The semicircular ring lower clamping module 7 and the semicircular ring upper clamping module 8 can be made into multiple groups according to the outer diameter specifications of the clamped titanium-steel composite pipe. Among the semicircular ring lower clamping modules 7 and the semicircular ring upper clamping modules 8 of adjacent specifications, the outer diameter of the small specification is adapted to the same as the inner diameter of the large specification.

[0025] Through the above implementation: by manufacturing a semicircular ring lower clamping module 7 and a semicircular ring upper clamping module 8, and by using semicircular ring upper and lower clamping modules of different specifications to be fixedly connected to the semicircular ring lower clamping mold and the semicircular ring upper clamping mold respectively, it is possible to clamp titanium-steel composite pipes of different diameters, with a simple structure and easy use.

[0026] In a specific implementation: see Figure 5 , Figure 6 As shown, the semicircular ring lower clamping module 7 and the semicircular ring upper clamping module 8 are coaxially fixedly sleeved in the semicircular ring lower clamping mold 1 and the semicircular ring upper clamping mold 2 respectively when in use.

[0027] Preferably, the semicircular ring lower clamping module 7 and the semicircular ring upper clamping module 8 are fixedly connected to the corresponding semicircular ring lower clamping mold 1 and the semicircular ring upper clamping mold 2 respectively by using fixing bolt assemblies 9.

[0028] Specifically, the semicircular ring lower clamping mold 1 and the semicircular ring upper clamping mold 2, as well as the semicircular ring lower clamping module 7 and the semicircular ring upper clamping module 8 are all provided with fixing holes 10 for bolt connection, and the fixing holes 10 are provided with countersunk grooves 11 at one end of the inner diameter on the semicircular ring lower clamping module 7 and the semicircular ring upper clamping module 8.

[0029] Through the above implementation, it can be ensured that after the semicircular upper and lower clamping modules are connected to the semicircular upper and lower clamping dies, the inner surface in contact with the workpiece is smooth and has no protrusions, thereby ensuring the performance of the clamp.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0031] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Clamping fixture for titanium steel composite pipe, characterized by: The invention comprises a semicircular lower clamping die (1) and a semicircular upper clamping die (2) with equal inner and outer diameters, wherein the lower portion of the semicircular lower clamping die (1) is fixedly connected to a lower clamping die seat (3), and the lower portion of the lower clamping die seat (3) is fixedly connected to a lower clamping die connecting plate (4), and the lower clamping die connecting plate (4) is used for being fixedly connected to a working platform on a press; the upper portion of the semicircular upper clamping die (2) is fixedly connected to an upper clamping die seat (5), and the upper portion of the upper clamping die seat (5) is fixedly connected to an upper clamping die connecting plate (6), and the upper clamping die connecting plate (6) is used for being fixedly connected to a hydraulic component on the upper portion of a press; the semicircular lower clamping die (1) and the semicircular upper clamping die (2) are vertically opposite to each other and form a circular ring structure after being molded together.

2. The clamping fixture for titanium-steel composite pipe according to claim 1 is characterized in that: It also comprises a semicircular ring lower clamping module (7) and a semicircular ring upper clamping module (8) with equal inner and outer diameters. The semicircular ring lower clamping module (7) and the semicircular ring upper clamping module (8) can be made into multiple groups according to the outer diameter specifications of the clamped titanium steel composite pipe. Among the semicircular ring lower clamping modules (7) and the semicircular ring upper clamping modules (8) of adjacent specifications, the outer diameter of the smaller specification is adapted to be the same as the inner diameter of the larger specification.

3. The clamping fixture for titanium-steel composite pipe according to claim 2 is characterized in that: The semicircular ring lower clamping module (7) and the semicircular ring upper clamping module (8) are respectively and coaxially fixedly sleeved in the semicircular ring lower clamping mold (1) and the semicircular ring upper clamping mold (2) when in use.

4. The clamping fixture for titanium-steel composite pipe according to claim 3 is characterized in that: The semicircular ring lower clamping module (7) and the semicircular ring upper clamping module (8) are both fixedly connected to the corresponding semicircular ring lower clamping die (1) and the semicircular ring upper clamping die (2) respectively by using a fixing bolt assembly (9).

5. The clamping fixture for titanium-steel composite pipe according to claim 4 is characterized in that: The semicircular ring lower clamping mold (1), the semicircular ring upper clamping mold (2), the semicircular ring lower clamping module (7), and the semicircular ring upper clamping module (8) are provided with fixing holes (10) for bolt connection, and the fixing holes (10) are provided with countersunk grooves (11) at one end of the inner diameter of the semicircular ring lower clamping module (7) and the semicircular ring upper clamping module (8).

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