Square tube slotting clamping structure
By designing a slotted clamping structure for square tubes, and using clamping corner bars with the same number of corners as the square tube to form a clearance zone, the problem of tool cutting fixtures was solved, and the protection of tools and fixtures and stable processing of square tubes were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU WUDONG MASCH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-06-23
AI Technical Summary
In the prior art, the cutting tool is prone to cutting into the fixture when machining square tubes, which can damage the cutting tool and the fixture. In addition, the square tube is prone to deformation during the machining process.
A slotted clamping structure for square tubes is designed, using clamping corner bars with the same number of corners as the square tube. The clamping corner bars are locked by a locking unit to form a clearance zone to prevent the tool from cutting into the clamp and to maintain the support force of the square tube.
It effectively avoids damage to cutting tools and fixtures, while reducing the deformation of square tubes during processing and ensuring maximum support during processing.
Smart Images
Figure CN224391303U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of machining technology, specifically a slotted clamping structure for square tubes. Background Technology
[0002] Square tubes, with their hollow square cross-section design, combine high strength, lightweight, easy processing, and corrosion resistance, and are widely used in many fields. When using square tubes, it is usually necessary to open through grooves on their surface to meet different usage requirements.
[0003] For example, Chinese invention patent application number 202510954047X describes a processing equipment for square tubes, which is mainly designed to avoid the deformation of long square tubes due to their own weight caused by traditional clamping methods.
[0004] However, in actual use, the aforementioned patented technology directly installs the square tube inside the mounting groove. While this provides sufficient support and prevents deformation during processing, as per the appendix of the patent... Figure 4 As shown, in order to ensure that the cutting tool can machine a through groove, it will inevitably penetrate the side wall of the square tube.
[0005] For example, Chinese utility model patent CN218425839U describes a device for processing grooves on the inner wall of a square tube. It also uses components such as a boring bar and a boring tool to cut the inner wall of the square tube. Regardless of the technology used, when the tool intentionally or unintentionally (overcuts) penetrates the square tube, it will cut the mounting groove or pad. This not only puts extra strain on the tool, but also damages the mounting groove. Therefore, it is necessary to provide a square tube grooving clamping structure to solve the above problems.
[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content
[0007] Based on the aforementioned problems in the existing technology, the problem to be solved by this application is to provide a square tube slotted clamping structure that can prevent the tool from cutting into the clamp.
[0008] The technical solution adopted by this application to solve its technical problem is: a square tube slotted clamping structure, comprising:
[0009] The clamping corner strips each have a clamping surface for contacting the square tube, and the number of clamping corner strips is the same as the number of edges and corners of the square tube.
[0010] A locking unit for locking two adjacent clamping corner bars;
[0011] Wherein: the clamping corner strip is adapted to fit the corner of the square tube, and the locking unit locks two adjacent clamping corner strips together, and the position where the square tube does not contact the clamping corner strip is a clearance zone.
[0012] Furthermore, the angle of the clamping surface is consistent with the angle of the square tube's edge.
[0013] Furthermore, the locking unit includes a locking bolt, one end of which is configured as a locking part, and the other end of which is configured as a threaded section. A locking nut is connected to the threaded section, and a locking hole is provided on the clamping angle strip at the position corresponding to the locking unit.
[0014] Furthermore, the clamping structure is disposed within the mounting groove, and the clamping structure also includes a pressure plate disposed on the mounting groove.
[0015] Furthermore, the pressure plate is provided with limit bolts.
[0016] Furthermore, the pressure plate has a protrusion on the side near the clamping structure.
[0017] The beneficial effects of this application are: the square tube slotting clamping structure provided by this application can, by setting the clamping structure, ensure the clamping force on the square tube while creating an avoidance zone for slotting the square tube, thereby avoiding damage to the cutting tool and the clamp.
[0018] In addition to the purposes, features, and advantages described above, this application has other purposes, features, and advantages. A further detailed description of this application will be provided below with reference to the figures. Attached Figure Description
[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:
[0020] Figure 1 This is an overall schematic diagram of a square tube slotted clamping structure according to this application;
[0021] Figure 2 for Figure 1 A magnified schematic diagram of a portion of region A in the middle;
[0022] Figure 3 for Figure 1 Schematic diagram of a partial structural explosion in region B;
[0023] Figure 4 This is a schematic diagram of the cross-sectional structure of the clamping structure;
[0024] The following are the labeling elements in the figure:
[0025] 1. Mounting base; 11. Mounting groove; 111. Pressure plate; 112. Limit bolt; 113. Limit bolt hole; 114. Protrusion;
[0026] 2. Clamping structure; 21. Clamping angle bar; 22. Locking bolt; 23. Locking nut; 24. Locking part; 25. Locking hole; 26. Clamping area; 27. Clearance area;
[0027] 3. Square tube;
[0028] 4. Tool holder; 41. Tool. Detailed Implementation
[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0030] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0031] like Figure 1 As shown, this application provides a slotted clamping structure for square tubes. This clamping structure is mainly used in processing equipment that requires maintaining constant support for long square tubes, such as the technical solution described in Chinese Invention Patent Application No. 202510954047X, or the technical solution described in Chinese Utility Model Patent Publication No. CN218425839U. Figure 4 As shown, the above-mentioned processing equipment mainly includes a grooving tool holder 4 and a cutting tool 41 mounted on the tool holder 4.
[0032] like Figures 1-3As shown, the clamping structure 2 for the slotted square tube includes clamping corner strips 21 with the same number of corners as the square tube 3. In this embodiment, the number of corners of the square tube 3 and the number of clamping corner strips 21 are both four. Each clamping corner strip 21 has a clamping surface on its inner side that fits against the surface of the square tube 3. The angle of the clamping surface is the same as the angle of the corner of the square tube 3. Similarly, in this embodiment, the square tube 3 is a standard specification tube with a corner of 90 degrees, so the angle of the clamping surface is also 90 degrees. In other embodiments (which can be triangular, polygonal, or even circular; if it is circular, the clamping surface is selected with an arc of the corresponding diameter), the square tube 3 can be irregular in shape. When selecting the clamping corner strips 21, the clamping corner strips 21 that match the angle of the tube can be selected.
[0033] On each clamping angle bar 21, a number of locking units are provided at intervals. Each locking unit includes a locking bolt 22 and a corresponding locking hole 25 is provided on the clamping angle bar 21. One end of each locking bolt 22 is a locking part 24 with a diameter larger than the bolt body, and the other end is a threaded section connected to a locking nut 23.
[0034] like Figures 3-4 As shown, before clamping the square tube 3, the clamping corner strips 21 of the corresponding specifications must be selected first. When the clamping corner strips 21 are combined, the two lowest clamping corner strips 21 are placed on the ground first, and the locking bolts 22 are inserted into the locking holes 25 adjacent to these two clamping corner strips 21. The square tube 3 is then placed on these two clamping corner strips 21.
[0035] Then, in the same way, combine two more clamping corner strips 21 and place the combined clamping corner strips 21 on the top of the square tube 3. Then, fix all the clamping corner strips 21 with locking bolts 22. At this time, the clamping corner strips 21 can clamp the square tube 3 through several clamping surfaces.
[0036] Then, the clamped square tube 3 is installed in the required position. In this embodiment, it is installed in the mounting groove 11 inside the mounting base 1, and the clamping structure 2 and the square tube 3 are fixedly installed by the pressure plate 111 on the mounting groove 11, the limiting bolt 112 adapted to the pressure plate 111, and the limiting screw hole 113 on the mounting groove 11.
[0037] The position where the clamping surface contacts the square tube 3 is the clamping area 26, and the position where the surface of the square tube 3 does not contact the clamping surface is the clearance area 27. Since the clamping corner strip 21 has a certain thickness, the clearance area 27 will have a certain gap with the side wall of the mounting groove 11 or the pressure plate 111. The existence of these gaps allows the tool 41 to move a certain distance after penetrating the square tube 3, so that the tool 41 can better complete the cutting operation and will not damage the tool 41 or the fixture.
[0038] After installation, the entire square tube 3 is supported by the clamping corner strip 21, which in turn is supported by the mounting groove 11. Without considering whether the mounting groove 11 will deform, both the clamping corner strip 21 and the square tube 3 can maintain maximum support during the grooving process, thereby reducing deformation caused by their own weight. At the same time, the square tube 3 also has a clearance area 27 for the cutting tool 41 to avoid.
[0039] During the installation of the clamping structure 2 and the square tube 3 and the mounting groove 11, a protrusion 114 can be provided at the bottom of the pressure plate 111. The protrusion 114 is used to contact the clamping corner strip 21 to prevent the height of the clamping corner strip 21 from being lower than the height of the mounting groove 11 after the clamping corner strip 21 is assembled, which would cause the pressure plate 111 to be unable to press the clamping structure 2, causing it to move during the processing and causing danger.
[0040] During the above installation process, the bottom surface reference of the clamping structure 2 is the bottom surface of the mounting groove 11, and its top surface is fixed by the pressure plate 111 and the protrusion 114. Its side reference can be any side of the mounting groove 11. During installation, the operator needs to press the clamping angle strip 21 on the side against the side of the mounting groove 11, or fill the opposite side with wedges until the gap between the clamping angle strip 21 and the side of the mounting groove 11 disappears. At this time, the installation of the clamping structure 2 and the square tube 3 can be completed.
[0041] In the above description, the purpose of providing a larger clamping surface for the clamping corner strip 21 is to increase the contact area between the clamping corner strip 21 and the square tube 3, thereby increasing the clamping force and preventing the square tube 3 from shaking due to insufficient clamping force. When the clamping force is not considered or the clamping force is sufficient, the clamping surface of the clamping corner strip 21 can also be small enough to only contact the corner of the square tube 3 without slipping, thereby maximizing the range of the avoidance area 27.
[0042] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A slotted clamping structure for square tubes, characterized in that: The clamping structure (2) includes: Clamping corner strips (21), each clamping corner strip (21) has a clamping surface, the clamping surface is used to contact the square tube (3), and the number of clamping corner strips (21) is consistent with the number of edges of the square tube (3); A locking unit for locking two adjacent clamping corner bars (21); Wherein: the clamping corner strip (21) is adapted to fit the corner of the square tube (3), and the two adjacent clamping corner strips (21) are locked by the locking unit. The position where the square tube (3) does not contact the clamping corner strip (21) is the avoidance area (27).
2. The square tube slotted clamping structure according to claim 1, characterized in that: The angle of the clamping surface is consistent with the angle of the edge of the square tube (3).
3. The square tube slotted clamping structure according to claim 1, characterized in that: The locking unit includes a locking bolt (22), one end of which is configured as a locking part (24), and the other end of which is configured as a threaded section. A locking nut is connected to the threaded section, and a locking hole (25) is provided on the clamping angle bar (21) at the position corresponding to the locking unit.
4. The square tube slotted clamping structure according to claim 1, characterized in that: The clamping structure (2) is disposed in the mounting groove (11), and the clamping structure (2) further includes a pressure plate (111), which is disposed on the mounting groove (11).
5. The square tube slotted clamping structure according to claim 4, characterized in that: Limit bolts (112) are provided on the pressure plate (111).
6. The square tube slotted clamping structure according to claim 4, characterized in that: The pressure plate (111) has a protrusion (114) on the side near the clamping structure (2).