A workpiece carrier for a numerically controlled lathe

Abstract

The utility model relates to numerical control lathe technical field, and specifically is a numerical control lathe workpiece bracket, including the bottom plate, the top surface of bottom plate is seted up with the slide groove, the slide groove is equipped with two, two the slide groove is in the same straight line and is all rotationally installed with screw rod in the inside, the outside of two the screw rod all movably sleeve joint has the sliding block, the top of sliding block is fixedly connected with the support seat, the top rotationally installed with first gyro wheel of support seat, two the screw rod mutual approach one end respectively with the both sides center place fixed connection of dial disc, dial disc is located between two the slide groove. Adopt dial disc linkage screw rod structure, through rotating dial disc, can synchronous adjustment both sides support seat interval, makes first gyro wheel fastly pastes the workpiece outer circle, replaces traditional three claw structure's successive adjustment, greatly shortens the clamping time, significantly improves processing efficiency, adapts multiple diameter workpieces, and simple operation saves the labor.

Description

Technical Field

[0001] This utility model relates to the field of CNC lathe technology, specifically to a CNC lathe workpiece bracket. Background Technology

[0002] In the field of CNC lathe machining, the application of workpiece supports is crucial to ensure the stability and machining accuracy of slender shaft workpieces during the cutting process. Traditional CNC lathe workpiece supports typically employ a three-jaw structure, requiring simultaneous adjustment of three clamping blocks to accommodate workpieces of different diameters and materials. This adjustment method is generally performed manually, using a screw and nut mechanism to fine-tune the positions of the three clamping blocks individually, ensuring that the clamping blocks are in uniform contact with the workpiece surface and applying appropriate clamping force.

[0003] However, this type of workpiece bracket that requires simultaneous adjustment of three clamping blocks has obvious drawbacks. First, the adjustment operation is cumbersome, requiring repeated adjustments of the position and clamping force of the three clamping blocks during manual operation, which is time-consuming and reduces processing efficiency. Second, it is difficult to ensure that the adjustment accuracy of the three clamping blocks is consistent, which can easily lead to uneven force on the workpiece, resulting in vibration during processing and affecting the processing accuracy and surface quality of the workpiece. Therefore, a CNC lathe workpiece bracket is proposed. Utility Model Content

[0004] The main purpose of this utility model is to provide a workpiece support for CNC lathes, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A CNC lathe workpiece support includes a base plate. The top surface of the base plate has two sliding grooves, which are collinear and each has a lead screw rotatably mounted inside. A slider is movably sleeved on the outer side of each lead screw. A support base is fixedly connected to the top of the slider, and a first roller is rotatably mounted on the top of the support base. The ends of the two lead screws that are close to each other are fixedly connected to the center of both sides of an actuating disk, which is located between the two sliding grooves.

[0007] By adopting the above technical solution and using a dial-linked screw structure, the distance between the two support seats can be adjusted synchronously by rotating the dial, so that the first roller can quickly fit into the outer circle of the workpiece. This replaces the sequential adjustment of the traditional three-jaw structure, greatly shortens the clamping time, significantly improves the processing efficiency, is suitable for workpieces of various diameters, and is simple and labor-saving to operate.

[0008] Specifically, a gantry frame is fixedly connected to the top of the base plate, and a threaded cylinder is fixedly installed at the center of the top of the gantry frame. A threaded rod is vertically connected to the inside of the threaded cylinder through a thread.

[0009] By adopting the above technical solution, after the workpiece is horizontally positioned by the first roller, the threaded rod inside the rotating threaded cylinder is used to make the threaded rod move vertically downward inside the threaded cylinder by utilizing the principle of thread transmission.

[0010] Specifically, the bottom end of the threaded rod passes through the top end of the gantry frame and is fixedly connected to the top end of the clamping seat. The bottom end of the clamping seat has a second roller that rotates, and the second roller is located directly above the dial.

[0011] By adopting the above technical solution, as the threaded rod moves vertically downward, it will drive the clamping seat and the second roller fixedly connected to it to rise and fall synchronously until the second roller lightly presses on the upper surface of the workpiece, and together with the first rollers on both sides, a stable three-point support structure is formed.

[0012] Specifically, the bottom end of the base plate is fixedly connected to a mounting base, and the top end of the mounting base is provided with a groove, the bottom of which is used for screwing in bolts.

[0013] By adopting the above technical solution, the mounting base is placed on the CNC lathe guide rail, the bolts pass through the grooves, and the base plate is firmly fixed on the lathe guide rail by tightening the bolts.

[0014] Specifically, the bottom end of the mounting base is provided with a V-shaped groove.

[0015] By adopting the above technical solution, the V-groove is precisely matched with the boss of the lathe guide rail during installation. By utilizing the guiding and positioning characteristics of the V-shaped structure, the installation direction and position of the bracket on the lathe can be quickly and accurately determined.

[0016] The beneficial effects of this utility model are:

[0017] The CNC lathe workpiece support described in this utility model adopts a dial-linked lead screw structure. By rotating the dial, the distance between the two support seats can be adjusted synchronously, so that the first roller can quickly fit into the outer circle of the workpiece. This replaces the sequential adjustment of the traditional three-jaw structure, greatly shortens the clamping time, significantly improves the processing efficiency, is suitable for workpieces of various diameters, and is simple and labor-saving to operate. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the base plate structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the planar structure of the present invention;

[0022] In the diagram: 1. Base plate; 2. Lead screw; 3. Support seat; 4. Slider; 5. Actuating plate; 6. Slide groove; 7. Gantry frame; 8. First roller; 9. Clamping seat; 10. Threaded rod; 11. Threaded cylinder; 12. Second roller; 13. V-groove; 14. Mounting base; 15. Bolt; 16. Groove. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] As one embodiment of this utility model, such as Figures 1-3 As shown, the CNC lathe workpiece support of this utility model includes a base plate 1. The top surface of the base plate 1 is provided with a sliding groove 6. There are two sliding grooves 6, which are on the same straight line and each has a lead screw 2 rotatably installed inside. The outer sides of the two lead screws 2 are movably sleeved with sliders 4. The top of the sliders 4 is fixedly connected to a support base 3. The top of the support base 3 is rotatably installed with a first roller 8. The ends of the two lead screws 2 that are close to each other are fixedly connected to the center of both sides of the actuating disk 5. The actuating disk 5 is located between the two sliding grooves 6.

[0025] In use, the workpiece is inserted into the gantry 7 and positioned directly above the dial 5. The dial 5 is rotated. Since the two lead screws 2 are fixed on both sides of the dial 5 and have opposite threads, the rotation of the lead screws 2 will drive the outer slider 4 to move synchronously in opposite directions within the slide groove 6. This will cause the support seat 3 to move the first roller 8 closer to or away from the workpiece until the first roller 8 is in contact with the outer surface of the workpiece, thus achieving horizontal positioning and support of the workpiece.

[0026] It should be noted that the dial 5 is installed at the center of the base plate 1, and the slider 4, support base 3 and first roller 8 are all symmetrically arranged about the central axis of the dial 5.

[0027] The present invention also includes a gantry frame 7 fixedly connected to the top of the base plate 1, a threaded cylinder 11 fixedly installed at the center of the top of the gantry frame 7, and a threaded rod 10 vertically connected to the inside of the threaded cylinder 11 by threads.

[0028] When in use, after the workpiece is horizontally positioned by the first roller 8, the threaded rod 10 inside the rotating threaded cylinder 11 is rotated, and the threaded rod 10 moves vertically downward inside the threaded cylinder 11 by utilizing the thread transmission principle.

[0029] The present invention also includes that the bottom end of the threaded rod 10 passes through the top end of the gantry frame 7 and is fixedly connected to the top end of the clamping seat 9, and the bottom end of the clamping seat 9 is rotatably provided with a second roller 12, which is located directly above the dial 5.

[0030] When in use, as the threaded rod 10 moves vertically downward, it will drive the clamping seat 9 and the second roller 12, which are fixedly connected to it, to rise and fall synchronously until the second roller 12 lightly presses on the upper surface of the workpiece, and together with the first rollers 8 on both sides, a stable three-point support structure is formed.

[0031] The present invention also includes a mounting base 14 fixedly connected to the bottom end of the base plate 1, and a groove 16 is provided at the top end of the mounting base 14, and the inner bottom of the groove 16 is used for screwing in the bolt 15.

[0032] When in use, place the mounting base 14 on the CNC lathe guide rail, so that the bolt 15 passes through the groove 16, and tighten the bolt 15 to firmly fix the base plate 1 on the lathe guide rail.

[0033] This utility model also includes a V-shaped groove 13 at the bottom end of the mounting base 14.

[0034] During use and installation, the V-groove 13 is precisely matched with the boss of the lathe guide rail. By utilizing the guiding and positioning characteristics of the V-shaped structure, the installation direction and position of the bracket on the lathe can be quickly and accurately determined.

[0035] In use, this invention is first positioned by the V-groove 13 at the bottom of the mounting base 14 engaging with the lathe guide rail boss, and then fixed to the CNC lathe guide rail by bolts 15 in the groove 16. The workpiece is then inserted into the gantry 7 and positioned directly above the actuating disk 5. Rotating the actuating disk 5 causes the two sliders 2, whose threads are opposite in direction, to move synchronously or in opposite directions along the slide groove 6. This moves the first roller 8 closer to or further away from the workpiece until it is in contact with the outer surface of the workpiece, completing the horizontal positioning. Then, the threaded rod 10 inside the threaded cylinder 11 at the top center of the gantry 7 is rotated, causing the clamping seat 9 and the second roller 12 to descend vertically until the second roller 12 lightly presses against the upper surface of the workpiece. This forms a three-point support structure. During processing, the three rotating rollers roll as the workpiece rotates when they come into contact with it, reducing friction and heat generation. At the same time, the symmetrical screw 2 and slider 4 structure and the vertical constraint at the top ensure uniform support force, forming a stable triangular support system. This suppresses radial runout and bending deformation of the workpiece under cutting force, absorbs some vibration energy, and improves processing stability. In addition, the distance between the two support seats 3 can be adjusted by the dial 5, and the height of the second roller 12 can be adjusted by the threaded rod 10, allowing for quick adaptation to shaft workpieces of different diameters.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A workpiece support for a CNC lathe, comprising a base plate (1), characterized in that, The top surface of the base plate (1) is provided with a sliding groove (6). There are two sliding grooves (6). The two sliding grooves (6) are on the same straight line and a lead screw (2) is rotatably installed inside each of them. A slider (4) is movably sleeved on the outside of each of the two lead screws (2). A support seat (3) is fixedly connected to the top of the slider (4). A first roller (8) is rotatably installed on the top of the support seat (3). The ends of the two lead screws (2) that are close to each other are fixedly connected to the center of both sides of the dial (5). The dial (5) is located between the two sliding grooves (6). The top of the base plate (1) is fixedly connected to a gantry frame (7), and a threaded cylinder (11) is fixedly installed at the center of the top of the gantry frame (7). The inside of the threaded cylinder (11) is vertically connected to a threaded rod (10) by a thread. The bottom end of the threaded rod (10) passes through the top end of the gantry frame (7) and is fixedly connected to the top end of the clamping seat (9). The bottom end of the clamping seat (9) has a second roller (12) that rotates, and the second roller (12) is located directly above the dial (5). The bottom end of the base plate (1) is fixedly connected to the mounting base (14), and the top end of the mounting base (14) is provided with a groove (16), the bottom of the groove (16) is used for screwing in the bolt (15). The bottom end of the mounting base (14) is provided with a V-shaped groove (13).

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