Spring chuck clamping mechanism of large machine tool

Abstract

The utility model relates to the technical field of machine tool chucks, in particular to a spring chuck clamping mechanism of a large machine tool, which comprises a fixed seat, a clamping component is arranged at the top of the fixed seat, and a connecting component is arranged at the bottom of the fixed seat. Through connection of a threaded rod and a movable thread and the action of a guide groove, the threaded rod rotates, a movable block can slide in a movable groove, a drill bit body is clamped and fixed through abutting blocks, and it is ensured that the drill bit body is stably fixed in a containing hole through the four abutting blocks; through cooperative use of the mounting groove, the connecting rod, the positioning groove and the fixing bolt, the connecting rod is connected with a machine tool through the mounting groove, the other end of the connecting rod extends to the positioning groove, the connecting rod is firmly fixed in the positioning groove by screwing the fixing bolt, it is ensured that the side face makes close contact with the fixing bolt, the connecting rod is convenient to disassemble, and the machining efficiency is improved. And the operation convenience is improved.

Description

Technical Field

[0001] This utility model relates to the field of machine tool chuck technology, specifically a spring chuck clamping mechanism for a large machine tool. Background Technology

[0002] CNC lathes have a wide range of machining capabilities, and can process complex workpieces such as straight cylinders, inclined cylinders, arcs, and various threads. Among them, the spring collet is a cylindrical clamping device used in CNC lathes to fasten drill bits or milling cutters. In use, the tool is placed in the spring collet, and the spring collet is locked to the tool holder by the clamping mechanism.

[0003] Existing technologies, such as CN220971478U, describe a spring collet clamping mechanism for a CNC lathe that uses a limiting rod to limit and fix the threaded sleeve. Compared with existing technologies, this design makes it easier to limit the threaded sleeve after installation, preventing it from loosening during subsequent processing. This effectively improves the stability of the workpiece during installation and prevents it from affecting the machining accuracy of the workpiece.

[0004] However, this device still has some shortcomings in its use:

[0005] 1. When using this device to clamp metal drill bits, a collet must be used for fixing. However, collets have limitations in fixing metal drill bits and lack stability, which is not conducive to efficient processing.

[0006] The long rod connects to the machine tool, making installation and disassembly inconvenient during operation. It is also difficult to disassemble the long rod from the collet, which reduces the overall ease of use. Utility Model Content

[0007] The purpose of this utility model is to provide a spring collet clamping mechanism for large machine tools, in order to solve the problem mentioned in the background art that when using this device to clamp metal drill bits, it is necessary to use a collet for fixation. However, the collet has limitations in fixing metal drill bits and lacks stability, which is not conducive to efficient processing. The long rod is connected to the machine tool, and the installation or disassembly during operation becomes inconvenient. At the same time, the disassembly between the long rod and the collet is also difficult, which reduces the overall ease of use.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A spring collet clamping mechanism for a large machine tool includes a fixed base, a clamping assembly on the top of the fixed base, and a connecting assembly on the bottom of the fixed base.

[0010] The clamping assembly includes a connecting block at the top of the fixed base, a movable block fixedly connected to the bottom of the connecting block, a movable thread at the bottom of the movable block, a movable groove at the top of the fixed base, the movable block extending into the movable groove and slidably connected to the movable groove, a rotating groove on the side of the fixed base communicating with the movable groove, a threaded rod rotatably connected in the rotating groove, the threaded rod being threadedly connected to the movable thread, and a guide groove at the end of the threaded rod.

[0011] As a preferred embodiment of this utility model, the connecting assembly includes a positioning groove opened at the bottom of the fixing seat, a connecting rod inserted into the positioning groove, a fixing bolt provided at the bottom of the fixing seat, the fixing bolt extending into the fixing seat, the fixing bolt being threadedly connected to the fixing seat, and the fixing bolt abutting against the side of the connecting rod.

[0012] As a preferred embodiment of this utility model, a fixing rod is provided at the bottom of the fixing base, and a connecting slot is provided at the top of the fixing rod. The fixing rod passes through the fixing base and extends into the rotating groove, and the connecting slot engages with the threaded rod.

[0013] As a preferred embodiment of this utility model, the side of the connecting rod is provided with a mounting groove, which is located at the bottom of the fixing base.

[0014] As a preferred embodiment of this utility model, the top of the connecting block is provided with anti-slip texture, and the end of the connecting block is fixedly connected with an abutment block.

[0015] As a preferred embodiment of this utility model, the top of the fixed base is provided with a placement hole, the placement hole is connected to the moving groove, and the drill bit body is disposed in the placement hole.

[0016] As a preferred embodiment of this utility model, three connecting rods are provided, and the three connecting rods are of the same size.

[0017] As a preferred embodiment of this utility model, the fixing base is cylindrical in shape, and the outer surface of the fixing base is coated with an anti-corrosion solution.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. In this utility model, by setting up a moving block, a connecting block, a moving thread, a threaded rod, and a positioning rod for coordinated use, the threaded rod is rotated through the connection between the threaded rod and the moving thread, and the guide groove allows the moving block to slide in the moving groove. The drill bit body is clamped and fixed by the abutment block, ensuring that the drill bit body is stably fixed in the placement hole by the four abutment blocks. After the fixing is completed, the threaded rod is locked by the connecting slot at the top of the fixing rod engaging with the threaded rod, thereby significantly improving the stability of the drill bit body and significantly improving the practicality of the device.

[0020] 2. In this utility model, by using the mounting groove, connecting rod, positioning groove and fixing bolt in combination, the connecting rod is connected to the machine tool through the mounting groove, and its other end extends to the positioning groove. By tightening the fixing bolt, the connecting rod is firmly fixed in the positioning groove, ensuring that the side is in close contact with the fixing bolt. This not only facilitates the disassembly of the connecting rod, but also improves the convenience of operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the top structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the clamping assembly structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the bottom structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the connection component structure of this utility model.

[0026] In the diagram: 1. Fixed base; 2. Clamping assembly; 201. Connecting block; 202. Moving block; 203. Moving thread; 204. Threaded rod; 205. Guide groove; 206. Fixed rod; 207. Connecting slot; 208. Abutment block; 3. Drill bit body; 4. Moving groove; 5. Rotating groove; 6. Placement hole; 7. Anti-slip texture; 8. Connecting assembly; 801. Positioning groove; 802. Connecting rod; 803. Mounting groove; 804. Fixing bolt. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] For examples, please refer to Figures 1-5 This utility model provides a technical solution:

[0029] A spring collet clamping mechanism for a large machine tool includes a fixed base 1, a clamping assembly 2 on the top of the fixed base 1, and a connecting assembly 8 on the bottom of the fixed base 1. The clamping assembly 2 includes a connecting block 201 on the top of the fixed base 1, a movable block 202 fixedly connected to the bottom of the connecting block 201, a movable thread 203 on the bottom of the movable block 202, a movable groove 4 on the top of the fixed base 1, the movable block 202 extending into the movable groove 4 and slidably connected to the movable groove 4, and a rotating groove 5 on the side of the fixed base 1. A threaded rod 204 is rotatably connected to the rotating groove 5, which is connected to the moving groove 4. The threaded rod 204 is threaded to the moving thread 203. A guide groove 205 is provided at the end of the threaded rod 204. A fixing rod 206 is provided at the bottom of the fixing seat 1. A connecting slot 207 is provided at the top of the fixing rod 206. The fixing rod 206 passes through the fixing seat 1 and extends into the rotating groove 5. The connecting slot 207 is engaged with the threaded rod 204. An anti-slip texture 7 is provided at the top of the connecting block 201. An abutment block 208 is fixedly connected to the end of the connecting block 201.

[0030] The threaded rod 204 can be rotated through the guide groove 205 to allow the moving block 202 to slide within the moving groove 4, thereby clamping and fixing the drill bit body 3 through the abutment block 208. The drill bit body 3 is fixed in the placement hole 6 by the four abutment blocks 208.

[0031] According to this embodiment Figure 1 , Figure 4 and Figure 5 As shown, the connecting assembly 8 includes a positioning groove 801 at the bottom of the fixed base 1, a connecting rod 802 inserted into the positioning groove 801, a fixing bolt 804 at the bottom of the fixed base 1 extending into the fixed base 1 and threadedly connected to the fixed base 1, and the fixing bolt 804 abutting against the side of the connecting rod 802. The side of the connecting rod 802 has an installation groove 803 located at the bottom of the fixed base 1. The top of the fixed base 1 has a placement hole 6 communicating with the moving groove 4, and a drill bit body 3 is placed in the placement hole 6. There are three connecting rods 802 of the same size. The fixed base 1 is cylindrical in shape, and the outer surface of the fixed base 1 is coated with an anti-corrosion solution.

[0032] The connecting rod 802 is fixed in the positioning groove 801 by screwing the fixing bolt 804 into the fixing seat 1 and the fixing bolt 804 abutting against the side of the connecting rod 802, thereby facilitating the disassembly of the connecting rod 802.

[0033] The working process of this utility model is as follows: When the spring collet clamping mechanism of the large machine tool designed in this scheme is in operation, first check whether the device is working properly. Then, install the fixed seat 1 on the machine tool through the connecting rod 802. Place the drill bit body 3 to be used in the placement hole 6. Turn the threaded rod 204 with a suitable tool. Since the threaded rod 204 is threadedly connected to the moving thread 203, the threaded rod 204 can be rotated through the guide groove 205, which allows the moving block 202 to slide in the moving groove 4. Thus, the drill bit body 3 is clamped and fixed by the abutment block 208. The drill bit body 3 is fixed in the placement hole 6 by the four abutment blocks 208. After fixing inside hole 6, the threaded rod 204 is engaged with the connecting slot 207 at the top of the fixing rod 206, thereby locking the threaded rod 204 and improving the stability of the drill bit body 3. This device improves practicality. The connecting rod 802 is connected to the machine tool through the mounting slot 803, and the other end of the connecting rod 802 extends into the positioning slot 801. By tightening the fixing bolt 804, it extends into the fixing seat 1. At the same time, the fixing bolt 804 abuts against the side of the connecting rod 802, thereby fixing the connecting rod 802 in the positioning slot 801, which facilitates the disassembly of the connecting rod 802 and improves convenience.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spring collet clamping mechanism for a large machine tool, comprising a fixed base (1), characterized in that: The top of the fixing base (1) is provided with a clamping component (2), and the bottom of the fixing base (1) is provided with a connecting component (8); The clamping assembly (2) includes a connecting block (201) at the top of the fixed base (1), a movable block (202) is fixedly connected to the bottom of the connecting block (201), a movable thread (203) is provided at the bottom of the movable block (202), a movable groove (4) is provided at the top of the fixed base (1), the movable block (202) extends into the movable groove (4) and is slidably connected to the movable groove (4), a rotating groove (5) is provided on the side of the fixed base (1), the rotating groove (5) communicates with the movable groove (4), a threaded rod (204) is rotatably connected in the rotating groove (5), the threaded rod (204) is threadedly connected to the movable thread (203), and a guide groove (205) is provided at the end of the threaded rod (204).

2. The spring collet clamping mechanism for a large machine tool according to claim 1, characterized in that: The connecting assembly (8) includes a positioning groove (801) at the bottom of the fixing seat (1), a connecting rod (802) is inserted into the positioning groove (801), a fixing bolt (804) is provided at the bottom of the fixing seat (1), the fixing bolt (804) extends into the fixing seat (1), the fixing bolt (804) is threadedly connected to the fixing seat (1), and the fixing bolt (804) abuts against the side of the connecting rod (802).

3. The spring collet clamping mechanism for a large machine tool according to claim 1, characterized in that: The bottom of the fixed base (1) is provided with a fixed rod (206), and the top of the fixed rod (206) is provided with a connecting slot (207). The fixed rod (206) passes through the fixed base (1) and extends into the rotating groove (5). The connecting slot (207) is engaged with the threaded rod (204).

4. The spring collet clamping mechanism for a large machine tool according to claim 2, characterized in that: The side of the connecting rod (802) is provided with a mounting groove (803), which is located at the bottom of the fixing seat (1).

5. The spring collet clamping mechanism for a large machine tool according to claim 1, characterized in that: The top of the connecting block (201) is provided with anti-slip texture (7), and the end of the connecting block (201) is fixedly connected with an abutment block (208).

6. The spring collet clamping mechanism for a large machine tool according to claim 1, characterized in that: The top of the fixed base (1) is provided with a placement hole (6), which is connected to the moving groove (4), and the drill bit body (3) is provided in the placement hole (6).

7. The spring collet clamping mechanism for a large machine tool according to claim 2, characterized in that: There are three connecting rods (802), and the three connecting rods (802) are the same size.

8. The spring collet clamping mechanism for a large machine tool according to claim 1, characterized in that: The fixing seat (1) is cylindrical in shape, and the outer surface of the fixing seat (1) is coated with an anti-corrosion solution.

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