Lathe fixture convenient to center

Abstract

The utility model relates to the technical field of lathe fixture centering, and discloses a lathe fixture convenient to center, which comprises a machine body, an operation board is arranged in the machine body, a clamping jaw is arranged on the upper surface of the operation board, a propulsion cabin is fixedly arranged on the upper surface of the machine body, a screw rod is arranged in the propulsion cabin, and the screw rod is fixedly arranged on the machine body. The lathe clamp convenient to center is provided with the clamping plate, the middle of the clamping plate is fixedly connected with the sleeving pipe, so that the clamping plate can rotate around the fixing shaft, the clamping plate can rotate around the fixing shaft, the clamping plate can rotate around the fixing shaft, the clamping plate can rotate around the fixing shaft, and the clamping plate can rotate around the fixing shaft, so that the clamping plate can rotate around the fixing shaft, and the clamping plate can rotate around the fixing shaft. In addition, springs are arranged at the ends, close to the machine body, of the clamping plates, the ends, close to the machine body, of the clamping plates are jacked up under the action of the springs, the whole clamping plates are in the shape with the small inside and the large outside, workers can insert materials more quickly and more accurately, and therefore the machining efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of centering of lathe jigs, and specifically relates to a lathe jig convenient for centering. Background Technique

[0002] A lathe is a machine tool mainly used for turning a rotating workpiece with a turning tool. On the lathe, drills, reamers, broaches, taps, die heads, knurling tools, etc. can also be used for corresponding processing. On a centering lathe jig, the workpiece is often positioned by a hole or an outer circle, and the jig adopts a centering clamping mechanism.

[0003] According to a disclosed lathe jig with high centering accuracy (publication number: CN213033933U), in the above application, by installing a sealing ring at the top of the connecting groove, under the action of the sealing ring and the high-temperature resistant sealing sleeve, the connection sealing performance between the quenching furnace cover and the quenching furnace body is improved. By designing the two sides of the top of the sealing ring as inclined planes respectively, it is convenient for the sealing ring to enter the inside of the high-temperature resistant sealing sleeve, and at the same time, the contact area between the sealing ring and the high-temperature resistant sealing sleeve is also increased.

[0004] However, during the actual use of the above equipment, the position of the clamping jaws is relatively fixed. When the workpiece is fed into the chuck, the worker needs to adjust the clamping jaws to the appropriate position in advance, and then manually lock the clamping jaws after feeding the workpiece, which prolongs the processing time and further affects the production efficiency of the device. In view of this, we have proposed a lathe jig convenient for centering. Content of the Utility Model

[0005] The purpose of the utility model is to provide a lathe jig convenient for centering to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A lathe jig convenient for centering, including a machine body. An operation disk is arranged inside the machine body. A clamping jaw is installed on the upper surface of the operation disk. A propulsion cabin is fixedly installed on the upper surface of the machine body. A screw rod is arranged inside the propulsion cabin. An anti-detachment piece is fixedly installed at one end of the screw rod close to the propulsion cabin. A propulsion plate is threadedly connected to the arc-shaped outer wall of the screw rod. A clamping device is arranged at the top of the propulsion plate. The clamping device includes:

[0007] A clamping plate, a sleeve pipe is fixedly connected to the middle of the clamping plate. A fixed shaft is movably installed inside the sleeve pipe. One end of the clamping plate close to the machine body is fixedly connected with a spring, and the end of the spring away from the clamping plate is fixedly connected with the propulsion plate.

[0008] Preferably, an arc-shaped groove is opened on the upper surface of the operation disk for controlling the closing and loosening of the clamping jaw, and a short shaft is fixedly connected to the side of the operation disk away from the clamping jaw.

[0009] Preferably, a hydraulic rod is movably installed on the arc-shaped outer surface of the short axis, and one end of the hydraulic rod away from the short axis is movably connected to the inner surface of the machine body.

[0010] Preferably, a positioning chute is provided on the upper surface of the machine body, and the positioning chute penetrates from the arc-shaped outer surface of the machine body to the center of the circle.

[0011] Preferably, a fixing groove is provided inside the propulsion cabin. In addition, an annular protrusion is fixedly connected to the corner of the propulsion plate. The annular protrusion fits with the fixing groove inside the propulsion cabin.

[0012] Preferably, the outer surface of the clamping plate is arc-shaped and bent inward, and a stop groove is provided on the arc-shaped inner surface of the clamping plate.

[0013] Preferably, a locking hole is provided at one end of the screw rod away from the propulsion plate. The screw rod can be rotated through this hole to further control the propulsion plate.

[0014] Compared with the prior art, the utility model provides a lathe fixture convenient for centering, and has the following beneficial effects:

[0015] 1. For the lathe fixture convenient for centering, by providing a propulsion cabin and cooperating with the rotation of the screw rod, under the action of the internal thread of the propulsion plate, the propulsion plate slides outwards along the fixing groove. At this time, with the extrusion of the clamping jaws, the workpiece is secondarily fixed inside the fixture, improving the stability of the device.

[0016] 2. For the lathe fixture convenient for centering, by providing a clamping plate, a sleeve pipe is fixedly connected to the middle of the clamping plate, enabling it to rotate around a fixed shaft. In addition, a spring is provided at one end of the clamping plate close to the machine body. Under the action of the spring, the clamping plate at one end close to the machine body is pushed up, making its overall shape smaller inside and larger outside, facilitating the worker to insert the material faster and more accurately, thereby improving the processing efficiency of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the main structure of the utility model;

[0018] Figure 2 is a schematic diagram of the utility model without the base;

[0019] Figure 3 is a schematic diagram of the utility model without the machine body structure;

[0020] Figure 4 is a schematic sectional view of the secondary fixing mechanism of the utility model.

[0021] In the figure: 1, the machine body; 2, the operation panel; 3, the hydraulic rod; 4, the positioning chute; 5, the claw; 7, the propulsion cabin; 8, the screw rod; 9, the propulsion plate; 10, the clamping device; 201, the short shaft; 202, the arc-shaped groove; 701, the fixed groove; 801, the anti-disengagement piece; 901, the annular protrusion; 101, the clamping plate; 102, the stop groove; 103, the spring; 104, the sleeve pipe; 105, the fixed shaft. Detailed implementation mode

[0022] As Figures 1 - 4 shown, the present utility model provides a technical solution: a lathe fixture facilitating centering, including a machine body 1, an operation panel 2 is arranged inside the machine body 1, a claw 5 is arranged on the upper surface of the operation panel 2, a propulsion cabin 7 is fixedly installed on the upper surface of the machine body 1, a screw rod 8 is arranged inside the propulsion cabin 7, an anti-disengagement piece 801 is fixedly installed at one end of the screw rod 8 close to the propulsion cabin 7, a propulsion plate 9 is threadedly connected to the arc-shaped outer wall of the screw rod 8, a clamping device 10 is arranged on the top of the propulsion plate 9, and the clamping device 10 includes a clamping plate 101, a stop groove 102, a spring 103, a sleeve pipe 104 and a fixed shaft 105.

[0023] A sleeve pipe 104 is fixedly connected to the middle of the clamping plate 101, a fixed shaft 105 is installed inside the sleeve pipe 104, a spring 103 is fixedly connected to one end of the clamping plate 101 close to the machine body 1, and the end of the spring 103 away from the clamping plate 101 is fixedly connected to the propulsion plate 9, so that one end is propped up in a static state, forming a shape with a smaller inner part and a larger outer part, facilitating the insertion of the workpiece.

[0024] In an embodiment of the present utility model, an arc-shaped groove 202 is opened on the upper surface of the operation panel 2, a short shaft 201 is fixedly connected to the side of the operation panel 2 away from the claw 5, a hydraulic rod 3 is movably installed on the arc-shaped outer surface of the short shaft 201, and the end of the hydraulic rod 3 away from the short shaft 201 is movably connected to the machine body 1. When in use, only the hydraulic switch needs to be turned on to achieve the clamping effect, improving the processing efficiency of the device.

[0025] In addition, a positioning chute 4 is opened on the upper surface of the machine body 1, and the positioning chute 4 penetrates from the arc-shaped outer surface of the machine body 1 to the center of the circle, and the claw 5 slides directionally inside it.

[0026] In an embodiment of the present utility model, a fixed groove 701 is arranged inside the propulsion cabin 7. In addition, an annular protrusion 901 is fixedly connected to the corner of the propulsion plate 9. The outer surface of the clamping plate 101 is arc-shaped and bends inward, and a stop groove 102 is opened on the arc-shaped inner surface of the clamping plate 101. A locking hole is opened at one end of the screw rod 8 away from the propulsion plate 9.

[0027] In the present utility model, during use, the workpiece is fed into the machine body 1, and the workpiece automatically comes into contact with the clamping plate 101. Under the action of the spring 103, the clamping plate 101 is in an overall V shape. At this time, when the workpiece is pushed, the workpiece automatically slides into the machine body 1. Then, the hydraulic switch is turned on, and the hydraulic rod 3 pushes the operation disk 2 to rotate. The claw 5 slides inward under the action of the arc-shaped groove 202 on the upper surface of the operation disk 2. At this time, the preliminary fixation is completed. Then, a matching tool is used to rotate the screw 8. At this time, the pushing plate 9 moves inward under the action of the screw 8. At the same time, the end of the clamping plate 101 in contact with the workpiece compresses the spring 103 until the clamping plate 101 completely fits the surface of the workpiece. At this time, the screw 8 is tightened to complete the secondary fixation.

[0028] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements that do not depart from the spirit of the present utility model are within the protection scope of the present utility model.

Claims

1. A lathe fixture for easy centering, comprising a machine body (1), an operating panel (2) being arranged inside the machine body (1), and a clamping claw (5) being arranged on the upper surface of the operating panel (2), characterized in that: A propulsion cabin (7) is fixedly mounted on the upper surface of the machine body (1), a screw (8) is arranged inside the propulsion cabin (7), an anti-drop sheet (801) is fixedly mounted on one end of the screw (8) close to the propulsion cabin (7), a propulsion plate (9) is threadedly connected to the arc-shaped outer wall of the screw (8), a clamping device (10) is arranged on the top of the propulsion plate (9), and the clamping device (10) comprises: A clamping plate (101), wherein a sleeve tube (104) is fixedly connected to the middle portion of the clamping plate (101), a fixed shaft (105) is movably installed inside the sleeve tube (104), the middle portion of the fixed shaft (105) is fixedly connected to the propulsion plate (9), an end of the clamping plate (101) close to the machine body (1) is fixedly connected to a spring (103), and an end of the spring (103) away from the clamping plate (101) is fixedly connected to the propulsion plate (9).

2. A lathe fixture for easy centering according to claim 1, characterized in that: An arc-shaped groove (202) is provided on the upper surface of the operating disk (2), and a short shaft (201) is fixedly connected to a surface of the operating disk (2) away from the claw (5).

3. A lathe fixture for easy centering according to claim 2, characterized in that: A hydraulic rod (3) is movably mounted on the arc-shaped outer surface of the short shaft (201), and one end of the hydraulic rod (3) away from the short shaft (201) is movably connected to the inner surface of the machine body (1).

4. The lathe fixture for easy centering according to claim 1, characterized in that: The upper surface of the machine body (1) is provided with a positioning slide groove (4), and the positioning slide groove (4) extends from the arc-shaped outer surface of the machine body (1) to the center of the circle.

5. The lathe fixture for easy centering according to claim 1, characterized in that: A fixing groove (701) is provided inside the propulsion cabin (7), and an annular protrusion (901) is fixedly connected to the corner of the propulsion plate (9).

6. The lathe fixture for easy centering according to claim 1, characterized in that: The outer surface of the clamping plate (101) is arc-shaped and bends inwards, and a retaining groove (102) is provided on the arc-shaped inner surface of the clamping plate (101).

7. The lathe fixture for easy centering according to claim 1, characterized in that: A locking hole is formed at one end of the screw rod (8) away from the propulsion plate (9).

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