Combined double screw compression device

Abstract

The utility model discloses a combined double helix compression device for irregular shape and inner cavity completed by numerical control machining. The utility model provides a kind of combined double helix compression device, the device includes base, process bolt plug and locating block, base is installed in workbench or rotary workbench at one end, and is positioned and connected with locating block at the other end, the bolt plug is a pair, is connected in the process hole of part by screw thread, and is connected on locating block by compression screw as a whole. Ensure the accurate fixing of workpiece during machining process, reduce the clamping time, improve the machining efficiency and accuracy. Its modular design makes it have universality and adjustability, can adapt to the demand of different models of workpiece, thereby optimizing the mechanical machining process.

Description

Technical Field

[0001] This utility model patent relates to a combined double-helix clamping device that uses CNC machining to complete irregular shapes and internal cavities. It is especially suitable for clamping irregular combustion chamber shell parts with large removal volumes and belongs to the field of mechanical machining clamping and positioning. Background Technology

[0002] Combustion chamber shell parts have a concave cavity structure with threaded features at both ends. Due to these characteristics, multiple fixtures are typically used to machine multiple parts of the part. However, manufacturing these fixtures is difficult and time-consuming, making it impossible to meet the product's production cycle requirements. Utility Model Content

[0003] This invention proposes a combined double-helix clamping device for CNC machining, which is particularly suitable for combustion chamber shell parts with large removal volume and irregular shape.

[0004] This utility model provides a combined double helix clamping device, which includes a base, process bolt plugs and a positioning block. The base is installed on a workbench or rotary workbench at one end and is positioned and connected to the positioning block at the other end. The bolt plugs are a pair, threadedly connected to the process holes of the parts, and are connected to the positioning block as a whole by clamping screws.

[0005] Advantageously or optionally, the bottom of the base has a mis-positioning hole, a quick-change positioning hole, and a central positioning hole.

[0006] Advantageously or alternatively, the base and the positioning block are positioned by a first positioning pin and a second positioning pin.

[0007] Advantageously or alternatively, the base and the positioning block are connected by connecting screws.

[0008] Advantageously or alternatively, the base is bolted to the worktable or rotary worktable.

[0009] Advantageously or alternatively, the bolt plug is positioned with the positioning block by a third positioning pin.

[0010] Advantageously or alternatively, the bolt plug has a hexagonal hole.

[0011] Advantageously or optionally, the positioning block also has a leveling reference.

[0012] This device utilizes the threaded structure of the combustion chamber and uses process bolt plugs to position and clamp parts, enabling the simultaneous machining of irregular contours and internal cavities. The fixture designed using this method has a simple structure and is easy to operate. The machined parts exhibit consistent quality.

[0013] Beneficial effects: This utility model is suitable for parts whose dimensional accuracy requires a single clamping operation. The device, through the coordinated work of the base, positioning block, and process bolt plug clamping mechanism, ensures precise fixation of the workpiece during processing, reducing clamping time and improving processing efficiency and accuracy. Its modular design makes it versatile and adjustable, adaptable to the needs of different workpiece models, thereby optimizing the machining process.

[0014] The features, functionalities, and advantages already discussed can be implemented independently in various examples, or combined in other examples. Further details of the examples can be seen in the following description and accompanying figures. Attached Figure Description

[0015] When read in conjunction with the accompanying drawings, the embodiments, preferred modes of use, other objects, and descriptions thereof will be best understood by referring to the following detailed description of the embodiments of the present invention, wherein:

[0016] Figure 1 This is a top view of a combined double-helix clamping device;

[0017] Figure 2 for Figure 1 AA section view;

[0018] Figure 3 This is a schematic diagram of the assembly of the process bolt plug and the parts.

[0019] 1. Base; 2. Process bolt plug; 3. Positioning block; 4. First positioning pin; 5. Second positioning pin; 6. Connecting screw; 7. Clamping screw; 8. Bolt; 9. Third positioning pin; 10. Anti-misalignment positioning hole; 11. Quick-change positioning hole; 12. Intermediate positioning hole; 13. Hexagonal hole; 14. Parts Detailed Implementation

[0020] The disclosed examples will be described more fully with reference to the accompanying drawings, which show some, but not all, of the disclosed examples. In fact, many different examples may be described, and these examples should not be construed as limited to those set forth herein. Rather, these examples are described so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0021] This utility model of a combined double-helix clamping device mainly includes a base 1, a process bolt plug 2, a positioning block 3, a first positioning pin 4, a second positioning pin 5, a connecting screw 6, a clamping screw 7, a bolt 8, and a third positioning pin 9.

[0022] The bottom of base 1 is connected to the worktable or rotary worktable via a quick-change interface. Base 1 features a multi-interface design, with quick-change positioning holes 11 and a central positioning hole 12 on the bottom. Base 1 uses these positioning holes for positioning and is connected to the worktable or rotary worktable using four bolts 8. The bottom of base 1 also has anti-misalignment positioning holes 10 to control the installation direction of the base.

[0023] The positioning block 3 is positioned by the first positioning pin 4 and the second positioning pin 5, and is installed onto the base 1 using connecting screws 6. Different interfaces are designed for the base 1 according to different workstations, and positioning holes for the positioning block 3 are designed according to different parts, giving it versatility and adjustability. The positioning block 3 also provides a leveling reference.

[0024] The process bolt plug 2 has a hexagonal hole 13. The process bolt plug 2 is installed in the threaded hole of the part 14. After installation, the part behind the process bolt plug is positioned using two third locating pins 9 and is mounted to the locating block 3 using screws 7. When connecting the process bolt plug 2 to the part 14, it is screwed in using the hexagonal hole 13.

[0025] Descriptions of various advantageous arrangements have been shown for illustrative and descriptive purposes, but such descriptions are not intended to be exclusive or limited to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. Furthermore, different advantageous examples may be described as having different advantages compared to other advantageous examples. One or more examples have been selected and described in order to best illustrate the principles and practical applications of the examples, and to enable those skilled in the art to understand that this disclosure contains various examples with various modifications suitable for the particular intended use.

Claims

1. A combined double-helix clamping device, characterized in that: The device includes a base (1), process bolt plugs (2) and a positioning block (3). The base (1) is installed on a workbench or rotary workbench at one end and is positioned and connected to the positioning block (3) at the other end. The bolt plugs (2) are a pair, threadedly connected in the process hole of the part (14) and connected to the positioning block (3) as a whole by a clamping screw (7).

2. The combined double-helix clamping device according to claim 1, characterized in that: The base (1) has a mis-positioning hole (10), a quick-change positioning hole (11) and a middle positioning hole (12) at the bottom.

3. The combined double-helix pressing device according to claim 1, characterized in that: The base (1) and the positioning block (3) are positioned by a first positioning pin (4) and a second positioning pin (5).

4. The combined double-helix pressing device according to claim 3, characterized in that: The base (1) and the positioning block (3) are connected by connecting screws (6).

5. The combined double-helix clamping device according to claim 1, characterized in that: The base (1) is connected to the worktable or rotary worktable by bolts (8).

6. The combined double-helix pressing device according to claim 1, characterized in that: The bolt plug (2) is positioned with the positioning block (3) by the third positioning pin (9).

7. The combined double-helix clamping device according to claim 1, characterized in that: The bolt plug (2) has a hexagonal hole (13).

8. The combined double-helix clamping device according to claim 1, characterized in that: The positioning block (3) also has a leveling reference.

Images