Fixing and supporting device for header

Abstract

The utility model discloses a fixing and supporting device for a header, which comprises an upper support, an upper clamping block, a lower clamping block, a lower support, a support and clamping block fastening device, an upper clamping block fastening device and a lower clamping block fastening device, and the upper clamping block and the lower clamping block respectively comprise a lower fastening block, a middle fastening block, an upper fastening block and a fastening screw. The lower fastening blocks, the middle fastening blocks and the upper fastening blocks are connected through fastening screws, the number of the upper clamping blocks is two, the number of the lower clamping blocks is two, the number of the upper clamping blocks is two, the number of the lower clamping blocks is two, the upper clamping blocks and the lower clamping blocks are symmetrically arranged up and down, and hexagonal clamping holes are formed among the upper support, the upper clamping blocks, the lower clamping blocks and the lower support. Different combinations of the lower fastening block, the middle fastening block and the upper fastening block in the clamping block can be used for fixing and supporting common headers with different outer diameter specifications, the number of tools of the header fixing and supporting device is reduced, the tool cost and the tool storage and management cost are saved, frequent replacement of the header supporting device on the same working table is reduced, and the working time cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary support devices for header assembly and manufacturing, in particular to a header fixing support device used for assembling headers of different specifications and tube panels. Background Art

[0002] In boiler structures, the header is typically assembled and connected to the tube panel. Depending on the factory configuration, the header and tube panel can be shipped separately or assembled in-house. If the header and tube panel require in-house assembly, the assembly and manufacturing process requires the fixed support of the header. Different header outer diameters require different fixed support devices. The header fixed support device is often welded to the fixture. After the header and tube panel are assembled, the welds are removed and the fixture is removed. When working at the same station, the repeated replacement of the header fixed support device when assembling headers and tube panels of different sizes consumes significant labor time. According to factory project statistics from recent years, the most commonly used outer diameters for headers assembled with tube panels are φ159, φ219, and φ273. Therefore, it is important to design a header fixed support device that can be used with a variety of header sizes and mechanically connected to the fixture. Utility Model Content

[0003] In order to solve the above technical problems, the utility model designs a fixing support device for a header, which is fixed to a tooling frame by threaded connection and can be used for fixing and supporting several headers of different specifications.

[0004] The utility model adopts the following technical solutions:

[0005] The cam is secured to the bottom of the support frame and is secured to the bottom of the support frame by means of a screw thread insert, the screw thread insert being secured to the bottom of the support frame and is secured to the bottom of the support frame by means of a screw thread insert.

[0006] Preferably, the support and clamping block fastening device includes a bolt and a nut, threaded holes are provided on the upper clamping block and the lower clamping block, and waist-shaped holes are correspondingly provided on the upper support and the lower support, and the upper support and the upper clamping block, as well as the lower support and the lower clamping block are fastened and fixed by bolt one and nut one respectively.

[0007] Preferably, the upper and lower clamping block fastening devices include two bolts and two nuts, and corresponding connecting holes are provided between the upper clamping block and the lower clamping block, and the upper clamping block and the lower clamping block are fastened and fixed by two bolts and two nuts respectively.

[0008] Preferably, the lower fastening block, the middle fastening block and the upper fastening block are respectively provided with recessed grooves and threaded connection holes corresponding to the fastening screws, and the threaded connection holes are provided in the recessed grooves.

[0009] Preferably, the lower support is provided with an ear plate, which is fixed to the tooling frame by a threaded connection.

[0010] The beneficial effects of the present invention are: the present invention has a simple and reasonable structure, the device is fixed to the tooling frame by threaded connection, and can be used for the fixed support of commonly used collection boxes with different outer diameters by selecting different combinations of the middle, lower, middle and upper fastening blocks of the clamping block, which not only reduces the number of tooling for the collection box fixing support device, saves tooling costs and tooling storage and management costs, but also reduces the frequent replacement of the collection box support device on the same workbench, saving labor time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 A structural diagram of the utility model;

[0012] Figure 2 This is a structural diagram of the upper clamping block or the lower clamping block in the utility model;

[0013] Figure 3 This is a structural diagram of a φ159 header with fixed support;

[0014] Figure 4 This is a structural diagram of a φ219 header with fixed support;

[0015] Figure 5 This is a structural diagram of a φ273 header with fixed support;

[0016] In the figure: 1. upper support, 2. upper clamping block, 3. lower clamping block, 4. lower support, 5. support and clamping block fastening device, 6. upper and lower clamping block fastening device, 7. lower fastening block, 8. middle fastening block, 9. upper fastening block, 10. fastening screw. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings:

[0018] Example: Figure 1As shown, a fixed support device for a header includes an upper support 1, an upper clamping block 2, a lower clamping block 3, a lower support 4, a support-clamping block fastening device 5, and upper and lower clamping block fastening devices 6. The lugs of the lower support 4 can be secured to the fixture frame using threaded connections. The upper clamping blocks 2 and the lower clamping blocks 3 have the same structure, with two of each being symmetrically arranged in a vertical arrangement. They are connected to the upper and lower supports 1 and 2 using the support-clamping block fastening device 5.

[0019] like Figure 2 As shown, the upper clamping block and the lower clamping block respectively include a lower fastening block 7, a middle fastening block 8, an upper fastening 9 and a fastening screw 10. The lower fastening block 7 is designed with threaded holes for threaded connection of the upper and lower clamping blocks with the upper support 1 and the lower support 4.

[0020] like Figure 3-Figure 5 As shown, this is a schematic diagram of the header fixing support device being used for fixing supports of headers of different specifications. Figure 3 The figure shows the fixed support of φ159 header; Figure 4 The figure shows the fixed support of φ219 header; Figure 5 The figure shows the fixed support of φ273 header.

[0021] According to the specifications of the header, different fastening block combinations are used to meet manufacturing requirements. When only the lower fastening block 7 is used, it can be used for the fixed support of the φ159 header; when the lower fastening block 7 and the middle fastening block 8 are used, it can be used for the fixed support of the φ219 header; when the lower fastening block 7, the middle fastening block 8 and the upper fastening block 9 are used, it can be used for the fixed support of the φ273 header. The length of the fastening screw 10 and the bolts in the upper and lower clamping block fastening devices 6 are adjusted according to the application of the fixed support of headers of different specifications. The fastening screw 10 has two length specifications, which are used for fixing the clamping block when fixing the support of the φ219 header and the φ273 header respectively. The bolts in the upper and lower clamping block fastening devices 6 have three length specifications. They are used for fixing the upper and lower clamping blocks when fixing the support of the φ159 header, the φ219 header and the φ273 header respectively.

[0022] The embodiment described above is only a preferred solution of the present invention and does not limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A fixed support device for a header, characterized in that: The cam is connected to the support frame by means of a fastening device for fastening the upper and lower clamping blocks, and the cam is connected to the support frame by means of a fastening device for fastening the upper and lower clamping blocks.

2. A fixing support device for a header according to claim 1, characterized in that: The support and clamping block fastening device includes a bolt and a nut. Threaded holes are provided on the upper clamping block and the lower clamping block. Waist holes are correspondingly provided on the upper support and the lower support. The upper support and the upper clamping block, as well as the lower support and the lower clamping block are fastened and fixed by bolts and nuts respectively.

3. A fixing support device for a header according to claim 1, characterized in that: The upper and lower clamping block fastening devices include two bolts and two nuts. Connecting holes are correspondingly provided between the upper clamping block and the lower clamping block. The upper clamping block and the lower clamping block are fastened and fixed respectively by two bolts and two nuts.

4. A fixing support device for a header according to claim 1, characterized in that: The lower fastening block, the middle fastening block and the upper fastening block are respectively provided with recessed grooves and threaded connection holes corresponding to the fastening screws, and the threaded connection holes are provided in the recessed grooves.

5. A fixing support device for a header according to claim 1, characterized in that: The lower support is provided with an ear plate, which is fixed to the tooling frame through a threaded connection.

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