Quantitative rapid clamping tool for lathe machining of thin shaft

Abstract

The utility model relates to a lathe auxiliary device, in particular to a quantitative rapid clamping tool for machining a thin shaft through a lathe. The tool comprises a clamping stop piece, an adjusting stop block, an adjusting bolt and a locking nut. The clamping blocking piece is of a three-jaw structure corresponding to the three-jaw chuck. Each claw arm of the clamping stop piece is provided with an adjusting stop block, and each adjusting stop block comprises a bottom plate and a double-lug piece. A mounting hole is formed in the bottom plate, the adjusting bolt penetrates into the mounting hole from the lower part of the bottom plate, the adjusting bolt penetrating out of the bottom plate is locked with the locking nut, and the adjusting bolt is used for adjusting the height of the bottom plate; and the claw arm is clamped between the two lugs.

Description

Technical Field

[0001] The utility model relates to an auxiliary device for a lathe, and particularly relates to a quantitative and rapid clamping tool for machining thin shafts on a lathe. Background Art

[0002] During the machining process on a lathe, due to the special structure or process requirements of the workpiece, when the chuck clamps a small number of workpieces, quantitative clamping is required. Otherwise, the chuck will interfere with the tool and the machining cannot be completed. In this case, only relying on the friction between the chuck and the workpiece to fix the axial direction, when machining a thin shaft, the workpiece is prone to axial movement. At the same time, there are problems such as unstable clamping and poor coaxiality of the workpiece after machining. Content of the Utility Model

[0003] Purpose of the utility model: To provide a quantitative and rapid clamping lathe tool for assisting in the machining of thin shafts on a lathe, which can provide end face limit for the workpiece to prevent axial movement, and at the same time has adaptability, the clamping amount can be adjusted, to meet the quantitative and rapid clamping of the workpiece and improve the machining efficiency of the workpiece.

[0004] Technical Solution

[0005] Provide a quantitative and rapid clamping tool for machining thin shafts on a lathe, including: a clamping stop, an adjusting block, an adjusting bolt, and a locking nut;

[0006] The clamping stop is a three-jaw structure corresponding to the three-jaw chuck;

[0007] An adjusting block is installed on each jaw arm of the clamping stop. The adjusting block includes a bottom plate and double ear pieces;

[0008] An installation hole is provided on the bottom plate. The adjusting bolt passes through the installation hole from below the bottom plate and is locked with the locking nut after passing through the bottom plate. The adjusting bolt is used to adjust the height of the bottom plate; the double ear pieces clamp the jaw arm.

[0009] Further, when using this tool, the clamping stop is coaxial with the three-jaw chuck, and the included angle between the jaw arm of the clamping stop and the jaw of the adjacent three-jaw chuck is 60°;

[0010] The clamping stop abuts against the product, and the nut of the adjusting bolt abuts against the end face of the three-jaw chuck.

[0011] Further, when using this tool, the adjusting bolt and the locking nut cooperate to adjust so that the three adjusting blocks on the three-jaw chuck are coplanar.

[0012] Further, a magnet insert is provided on the clamping stop to facilitate adsorbing the workpiece and providing an auxiliary clamping function.

[0013] Further, evenly distributed pin holes are provided on the clamping stop, and connecting pins are used to fix the adjusting block.

[0014] Furthermore, the length of the jaw arm of the clamping stopper is related to the diameter of the product clamped by the three-jaw chuck.

[0015] The technical effect of the utility model is that the lathe auxiliary tool can clamp a small amount of workpieces quickly and prevent the workpiece from moving along its axis. The workpiece clamping amount can be adjusted by adjusting the adjusting bolt that is threadedly connected to the adjusting block, and the size of the three-jaw chuck jaws is fixed. A magnet insert is provided on the clamping block, which adsorbs the workpiece when in use, making it easy to clamp and achieve quantitative and rapid clamping. It has a simple structure and is easy to use. It is suitable for small batch processing of workpieces, improves production efficiency, has good adaptability, can be adjusted according to needs, and realizes a modular design of the tool. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the explosion structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the axonometric structure of the present invention.

[0018] Figure 3-1 It is a top view of the adjustment block 2 of the utility model.

[0019] Figure 3-2 It is a front view of the adjustment block 2 of the utility model.

[0020] Figure 4-1 It is a front view of the clamping stopper 1 of the present invention.

[0021] Figure 4-2 It is a side view of the clamping stopper 1 of the present invention.

[0022] Figure 4-3 It is a front view of the clamping stopper 1 of the present invention. DETAILED DESCRIPTION

[0023] The utility model provides a quantitative quick clamping tool for lathe processing thin shafts, comprising a clamping stopper, a magnet insert, an adjustment block, a connecting pin, an adjustment bolt, and a locking nut, wherein the heads of the adjustment bolts are on the same horizontal plane.

[0024] like Figure 4-1 、 4-2 As shown in 4-3, the middle of the clamping block is cylindrical to increase the contact surface with the workpiece, and is fixed to the adjustment block by a pin. There is a magnet insert at the center of the clamping block to facilitate the adsorption of the workpiece and play a role in auxiliary clamping.

[0025] The adjusting block is used to receive the adjusting bolt and adopts fine thread to adjust the clamping amount. After ensuring consistency, it is locked with a locking nut and abuts against the chuck to achieve quantitative and rapid clamping of the workpiece.

[0026] See Figure 1 Figure 1 , the utility model provides a lathe quantitative quick clamping tool, which includes a clamping stop 1, an adjusting block 2, an adjusting bolt 3 and a locking nut 4. A magnet insert 101 is arranged on the clamping stop 1 to facilitate adsorbing the workpiece and providing an auxiliary clamping function. There are also evenly distributed pin holes 102, which are fixed to the adjusting block 2 by connecting pins 202. The adjusting block 2 is provided with a fine thread adjusting threaded hole and is locked by the locking nut 4 on the other side. Moreover, the clamping stop 1 provides support and adsorption for the end face of the workpiece, which can prevent the workpiece from axially moving. After being abutted against the chuck, quantitative quick clamping is achieved.

[0027] See Figure 3-1 and Figure 3-2 Figure 3-2 , the outer diameter of the central part of the clamping stop 1 can be changed to increase the contact surface with the workpiece, so as to adapt to workpieces of different specifications and provide more stable clamping ability.

[0028] See Figure 1 、 2 、3-1、3-2, there are 3 adjusting blocks 2, which are arranged in an evenly distributed triangle. The groove surface 201 of the adjusting block 2 is used to cooperate with the clamping stop 1 and is fixed by connecting pins 202. Moreover, the adjusting block 2 uses a modular design. Different models of adjusting blocks 2 can be selected according to the specifications of the three-jaw chuck. During use, according to the specifications of the three-jaw chuck and the clamping amount of the workpiece, the ends of the adjusting bolts 3 connected by the 3 adjusting blocks 2 can be located on the same horizontal plane on the working platform and fixed by the locking nut 4. Or according to the on-site use situation, the pin structure can be changed to a positioning bolt type quick-release form to prevent problems such as poor positioning accuracy caused by frequent disassembly.

[0029] In summary, the utility model is a lathe quantitative quick clamping tool. Through the axial end face positioning provided by the clamping stop and the cooperation of the adjusting block and the adjusting bolt, aiming at the problems of easy axial movement, unstable clamping and uncertain quality between the chuck and the workpiece during the processing of small-diameter and small-clamping-amount workpieces, quantitative quick clamping is achieved, and the machining accuracy and production efficiency of the workpiece are improved.

Claims

1. A quantitative and rapid clamping tool for machining thin shafts on a lathe, characterized in that, include: Clamping stopper (1), adjusting block (2), adjusting bolt (3), locking nut (4); The clamping stopper (1) is a three-jaw structure corresponding to the three-jaw chuck; An adjusting block (2) is installed on each claw arm of the clamping block (1), and the adjusting block (2) includes a bottom plate and two ear pieces; The bottom plate is provided with a mounting hole, an adjusting bolt (3) is passed through the mounting hole from the bottom of the bottom plate, the adjusting bolt passing through the bottom plate is locked with a locking nut, and the adjusting bolt (3) is used to adjust the height of the bottom plate; the claw arm is clamped between the two ear pieces.

2. The tool according to claim 1, characterized in that, When the tool is used, the clamping stopper (1) is coaxial with the three-jaw chuck, and the angle between the jaw arm of the clamping stopper (1) and the adjacent jaw of the three-jaw chuck is 60°; The clamping stopper (1) is pressed against the product, and the nut of the adjusting bolt (3) is pressed against the end face of the three-jaw chuck.

3. The tool according to claim 2, characterized in that, When using the tool, the adjusting bolt (3) and the locking nut (4) are adjusted in coordination so that the three adjusting blocks (2) on the three-jaw chuck remain coplanar.

4. The tool according to claim 1, characterized in that A magnet insert (101) is provided on the clamping stopper (1) to facilitate adsorption of the workpiece and provide auxiliary clamping function.

5. The tool according to claim 1, characterized in that, The clamping stopper (1) is provided with evenly distributed pin holes (102) and is fixed with the adjusting stopper (2) by using connecting pins (202).

6. The tool according to claim 1, characterized in that The length of the claw arm of the clamping stopper (1) is related to the diameter of the product clamped by the three-jaw chuck.

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