Lathe chuck capable of being rapidly replaced

Abstract

The utility model relates to the field of mechanical lathes, and discloses a lathe chuck capable of being quickly replaced, which comprises a chuck, T-shaped grooves are formed in the chuck, a driving cylinder is fixedly connected in the chuck, the output end of the driving cylinder is fixedly connected with a clamping mechanism, the clamping mechanism comprises a plurality of sliding blocks, and the sliding blocks are fixedly connected with the clamping mechanism. And the outer portions of the sliding blocks are slidably connected into the T-shaped grooves, mounting blocks are fixedly connected to the tops of the sliding blocks, mounting grooves are formed in the mounting blocks, and mounting rods are arranged in the mounting grooves. When the clamping jaw is damaged or needs to be replaced, the pulling block drives the clamping rod to be separated from the limiting hole, the installation rod is taken out, the clamping jaw is replaced, operation is convenient and fast, and maintenance cost is saved. In addition, the length of the protruding part of the chuck can be adjusted through the screw, the baffle and the movable plate in the chuck, the coincidence length of the clamping jaw and the workpiece is optimized when the workpiece is machined, the workpiece is effectively prevented from swinging or colliding with a cutter in the machining process, and the machining precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical lathe field especially, a quick replaceable lathe chuck. BACKGROUND

[0002] Chucks are a kind of fixture for fixing workpieces, and are widely used in lathe, milling machine and other machine tool equipment. It keeps the workpiece stable during machining by clamping a part of it to ensure machining accuracy. Chucks are usually composed of three or more clamping jaws, and the opening and closing of the clamping jaws can be controlled by rotating the handle of the chuck or the electric drive device. According to different clamping methods, chucks can be divided into manual chucks and automatic chucks, etc., to adapt to different machining requirements and workpiece sizes.

[0003] Lathe chucks are key fixtures on lathes for fixing workpieces, mainly by clamping workpieces to ensure their stability during machining. It is usually composed of a chuck body and multiple adjustable clamping jaws, and the clamping jaws are adjusted in position by rotating the chuck body or operating the handle of the chuck, hydraulic or pneumatic system, so as to clamp or release the workpiece.

[0004] The traditional lathe chuck needs to adjust the position of the clamping plate every time it encounters different size workpieces, which affects the production continuity of the device and reduces the production efficiency of the device. INVENTION CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a quick replaceable lathe chuck, aiming at improving the problem that the position of the clamping plate needs to be adjusted every time different size workpieces are encountered in the prior art, affecting the production continuity of the device and reducing the production efficiency of the device.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a quick replaceable lathe chuck, comprising a chuck, T-shaped grooves are formed in the inside of the chuck, a driving cylinder is fixedly connected in the inside of the chuck, a clamping mechanism is fixedly connected to the output end of the driving cylinder;

[0007] The clamping mechanism comprises a plurality of sliding blocks, the outside of the sliding block is slidingly connected in the inside of the T-shaped groove, the top of the sliding block is fixedly connected with a mounting block, a mounting groove is formed in the inside of the mounting block, a mounting rod is arranged in the inside of the mounting groove, a clamping jaw is fixedly connected to the end of the mounting rod away from the mounting groove, and a dismounting assembly is arranged in the inside of the mounting block.

[0008] Further, the dismounting assembly comprises a sliding plate, the sliding plate is slidably connected in the sliding groove, the sliding groove is arranged in the mounting block, the top of the sliding plate is fixedly connected with a spring, the end, away from the sliding plate, of the spring is fixedly connected in the sliding groove, the inside of the sliding plate is fixedly connected with a clamping rod, and the outside of the clamping rod is slidably connected in the inside of the mounting block.

[0009] Further, the inside of the chuck is threadedly connected with a screw rod, the top of the screw rod is fixedly connected with a baffle one, the inside of the baffle one is arranged with a rotating groove, the outside of the screw rod is provided with a baffle two, the bottom of the baffle two is provided with a fixed plate, and the top of the baffle two is provided with a movable plate.

[0010] Further, the two sides of the movable plate abut against the baffle one and the baffle two, and the two sides of the fixed plate abut against the baffle two and the chuck.

[0011] Further, the movable plate and the fixed plate are threadedly connected with the screw rod.

[0012] Further, the inside of the mounting rod is arranged with a limiting hole, and the inside of the limiting hole is provided with a clamping rod.

[0013] Further, the top of the clamping rod is fixedly connected with a pulling block.

[0014] The utility model has the advantages of the following:

[0015] 1. In the utility model, when the claw is damaged or needs to be replaced, the clamping rod is moved by the pulling block, the clamping rod moves and drives the sliding plate to move at the same time, the clamping rod is separated from the limiting hole in the inside of the mounting rod, then the mounting rod is taken out from the inside of the mounting groove, then the different types of claws or the intact claws are put into the inside of the mounting groove, the pulling block is loosened at this time, the sliding plate is moved by the elastic force of the spring, the sliding plate drives the clamping rod to reset, and the newly installed mounting rod is limited, so that the daily maintenance and replacement of the claw are facilitated, and the daily maintenance cost of the device is saved.

[0016] 2. In the utility model, the distance that the fixed plate protrudes from the chuck is adjusted through the rotating groove, the length that the claw coincides with the workpiece is adjusted, when the long shaft workpiece is machined, the distance that the fixed plate protrudes from the chuck is reduced, the length that the claw coincides with the workpiece is increased, so that the workpiece is prevented from swinging during machining, when the short shaft workpiece is machined, the distance that the fixed plate protrudes from the chuck is increased, the length that the claw coincides with the workpiece is reduced, the far end of the workpiece is far away from the claw as far as possible, and the tool is prevented from colliding during machining. DRAWINGS

[0017] Figure 1 A three-dimensional view of the quick-replaceable lathe chuck is provided for the utility model;

[0018] Figure 2 A cross-sectional view of the quick-replaceable lathe chuck is provided in the utility model.

[0019] Figure 3 To Figure 2 A enlarged view of the middle A;

[0020] Figure 4 A partial structure schematic view of the quick-replaceable lathe chuck is provided in the utility model.

[0021] Legend:

[0022] 1, chuck; 2, T-shaped groove; 3, sliding block; 4, mounting block; 5, driving cylinder; 6, sliding groove; 7, sliding plate; 8, clamping rod; 9, pulling block; 10, spring; 11, mounting groove; 12, mounting rod; 13, limiting hole; 14, clamping jaw; 15, fixed plate; 16, movable plate; 17, baffle one; 18, baffle two; 19, screw; 20, rotating groove. Specific implementation

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0024] With reference to Figures 1-4 , the utility model provides an embodiment: a quick-replaceable lathe chuck, including chuck 1, the inside of chuck 1 is all seted up T-shaped groove 2, chuck 1's inside is fixedly connected with driving cylinder 5, and the output end of driving cylinder 5 is fixedly connected with clamping mechanism;

[0025] The clamping mechanism includes a plurality of sliding blocks 3, the outside of the sliding block 3 is slidably connected in the inside of the T-shaped groove 2, and the top of the sliding block 3 is fixedly connected with the mounting block 4; The inside of the mounting block 4 is provided with a mounting groove 11, and the inside of the mounting groove 11 is provided with a mounting rod 12; One end of the mounting rod 12 away from the mounting groove 11 is fixedly connected with the clamping jaw 14; The inside of the mounting block 4 is provided with a dismounting assembly, and the dismounting assembly includes a sliding plate 7; The sliding plate 7 is slidably connected in the inside of the sliding groove 6, and the sliding groove 6 is set in the inside of the mounting block 4; The top of the sliding plate 7 is fixedly connected with the spring 10, and one end of the spring 10 away from the sliding plate 7 is fixedly connected in the inside of the sliding groove 6; The inside of the sliding plate 7 is fixedly connected with the clamping rod 8, and the outside of the clamping rod 8 is slidably connected in the inside of the mounting block 4; The inside of the mounting rod 12 is provided with a limiting hole 13, and the inside of the limiting hole 13 is provided with the clamping rod 8; The top end of the clamping rod 8 is fixedly connected with the pulling block 9.

[0026] The chuck 1 is internally provided with a T-shaped groove 2 for bearing and sliding the sliders 3 in the clamping mechanism. The top of the sliders 3 is fixed with a mounting block 4, which is internally provided with a mounting groove 11 for mounting and replacing the clamping jaw 14. The driving cylinder 5 drives the clamping mechanism in a pneumatic manner to ensure the stability and flexibility of the clamping force. The mounting rod 12 is provided with the clamping jaw 14, which realizes the clamping of the workpiece. This structure facilitates the fixation and precision machining of the workpiece, and the design of the disassembled assembly enables the clamping jaw 14 to be conveniently replaced. Specifically, the sliding plate 7, through the cooperation of the spring 10 and the clamping rod 8, completes the disassembly and installation of the clamping jaw 14. By pulling the clamping rod 8 with the pulling block 9, the clamping jaw 14 can be easily removed and replaced. This design greatly improves the maintenance efficiency of the clamping jaw 14 and reduces the downtime caused by damage to the clamping jaw 14. The cooperation of the limiting hole 13 and the clamping rod 8 enables the clamping jaw 14 to be installed and reset at the correct position. During installation, the clamping rod 8 is automatically reset by the spring 10, ensuring that the clamping jaw 14 is stable after installation and avoiding loosening or displacement.

[0027] Referring to Figure 2 and Figure 4 , the chuck 1 is internally threadedly connected with a screw rod 19, the top end of the screw rod 19 is fixedly connected with a baffle one 17, the baffle one 17 is internally provided with a rotating groove 20, the outside of the screw rod 19 is provided with a baffle two 18, the bottom of the baffle two 18 is provided with a fixed plate 15, the top of the baffle two 18 is provided with a movable plate 16, the two sides of the movable plate 16 abut against the baffle one 17 and the baffle two 18, the two sides of the fixed plate 15 abut against the baffle two 18 and the chuck 1, and the movable plate 16 and the fixed plate 15 are threadedly connected with the screw rod 19.

[0028] The adjusting device is designed with an adjusting mechanism of the rotating groove 20 and the fixed plate 15 in the adjustment of the chuck 1. By rotating the baffle one 17 and the baffle two 18 on the screw rod 19, the relative position between the chuck 1 and the workpiece can be adjusted. This mechanism helps to adjust the protruding length of the chuck 1 when machining workpieces of different sizes, thereby avoiding the workpiece from swinging or hitting the tool during machining. For long shaft workpieces, by reducing the protruding length, the overlapping part of the clamping jaw 14 and the workpiece can be increased to prevent swinging during machining. For short shaft workpieces, the overlapping part of the clamping jaw 14 can be reduced by increasing the protruding length to ensure machining precision and safety.

[0029] Working principle: when the claw 14 is damaged or needs to be replaced, the claw 14 can be easily taken out and replaced by pulling the block 9 to pull the card rod 8 to move. This design greatly improves the maintenance efficiency of the claw 14, reduces the downtime caused by the damage of the claw 14, and the cooperation of the limiting hole 13 and the card rod 8 limits and resets the claw 14 to be installed and reset in the correct position. During installation, the card rod 8 is automatically reset by the spring 10, ensuring that the claw 14 is stable after installation. Avoid loosening or displacement.

[0030] Secondly, the chuck 1 is screwed with a screw rod 19, the top end of which has a baffle 17 and a rotating groove 20, and a baffle 18, a fixed plate 15, and a movable plate 16. The distance between the fixed plate 15 and the chuck 1 can be adjusted through the rotating groove 20, and the length of the claw 14 can be adjusted according to the length of the workpiece to avoid abnormal machining.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A quick-change lathe chuck comprising a chuck (1), characterized in that: The inside of the chuck (1) is provided with a T-shaped groove (2), the inside of the chuck (1) is fixedly connected with a driving cylinder (5), and the output end of the driving cylinder (5) is fixedly connected with a clamping mechanism. The clamping mechanism comprises a plurality of sliding blocks (3), the outside of the sliding block (3) is slidably connected in the inside of the T-shaped groove (2), the top of the sliding block (3) is fixedly connected with a mounting block (4), the inside of the mounting block (4) is provided with a mounting groove (11), the inside of the mounting groove (11) is provided with a mounting rod (12), one end of the mounting rod (12) away from the mounting groove (11) is fixedly connected with a clamping jaw (14), and the inside of the mounting block (4) is provided with a dismounting assembly.

2. A quick change lathe chuck as claimed in claim 1 wherein: The dismounting assembly comprises a sliding plate (7), the sliding plate (7) is slidably connected in the inside of a sliding groove (6), the sliding groove (6) is arranged in the inside of the mounting block (4), the top of the sliding plate (7) is fixedly connected with a spring (10), one end of the spring (10) away from the sliding plate (7) is fixedly connected in the inside of the sliding groove (6), the inside of the sliding plate (7) is fixedly connected with a clamping rod (8), and the outside of the clamping rod (8) is slidably connected in the inside of the mounting block (4).

3. A quick change lathe chuck as claimed in claim 1 wherein: The inside of the chuck (1) is threadedly connected with a screw rod (19), the top end of the screw rod (19) is fixedly connected with a baffle one (17), the inside of the baffle one (17) is provided with a rotating groove (20), the outside of the screw rod (19) is provided with a baffle two (18), the bottom of the baffle two (18) is provided with a fixed plate (15), and the top of the baffle two (18) is provided with a movable plate (16).

4. A quick change lathe chuck as claimed in claim 3 wherein: The two sides of the movable plate (16) abut against the baffle one (17) and the baffle two (18), and the two sides of the fixed plate (15) abut against the baffle two (18) and the chuck (1).

5. A quick change lathe chuck as claimed in claim 3 wherein: The movable plate (16) and the fixed plate (15) are threadedly connected with the screw rod (19).

6. A quick change lathe chuck as defined in claim 1, wherein: The inside of the mounting rod (12) is provided with a limiting hole (13), and the inside of the limiting hole (13) is provided with the clamping rod (8).

7. A quick change lathe chuck as defined in claim 2, wherein: The top end of the clamping rod (8) is fixedly connected with a pulling block (9).

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