Workpiece fixing device based on numerically controlled lathe
By designing a servo motor-driven fixing mechanism and positioning components on a CNC lathe, the problem of limited fixture adaptability was solved, enabling stable fixing of workpieces of different shapes and sizes, and improving the flexibility and efficiency of processing.
Patent Information
- Application Number
- CN202520124747.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-01-20
AI Technical Summary
Existing CNC lathe fixtures have a limited range of applications, requiring different fixtures to be changed according to workpieces of different shapes and sizes, which limits the flexibility and efficiency of machining.
A workpiece fixing device based on a CNC lathe was designed, including a fixing mechanism driven by a servo motor and a positioning component. The servo motor drives the drive gear and the driven gear to mesh, realizing the movement of the movable block. Combined with the positioning component and the stabilizing component, it can adapt to the fixing of workpieces of different sizes and shapes.
It improves the applicability and stability of the workpiece fixing device, enabling it to adapt to workpieces of different shapes and sizes, prevents displacement, and enhances processing flexibility and efficiency.
Smart Images
Figure CN223903421U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to work piece fixing technical field, concretely is a work piece fixing device based on numerical control lathe. BACKGROUND
[0002] Numerical control lathe is a kind of high-precision, high-efficiency automatic machine tool, can be used for processing various shafts, sleeve and thread parts, utilizes digital information control machine tool and processing equipment, realizes the processing of workpiece by preprogrammed program code or other symbolic instruction form, shows its unique advantage in complex, precision part processing. In the related art, the positioning and fixing of workpiece are usually realized by using special clamps, these clamps are designed according to the shape, size and processing requirement of workpiece, can ensure the stability and processing accuracy of workpiece in the processing, including three-jaw self-centering chuck, four-jaw independent chuck, clamping plate, chuck, custom fixture etc.
[0003] However, although the existing clamp system can meet the processing demand in many aspects, there are still some deficiencies, and the most important disadvantage is that the adaptive range of the clamp is small, for different shapes and sizes of workpiece, different clamps are often needed to be replaced to adapt, such as cylindrical workpiece, tubular workpiece, rectangular workpiece and workpiece with boss at the end, which limits the flexibility and efficiency of processing to some extent, and therefore we propose a work piece fixing device based on numerical control lathe to solve the above problems. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing a work piece fixing device based on numerical control lathe to solve the problem that the adaptive range of the clamp is small, different clamps need to be replaced to adapt to different workpieces, which limits the flexibility and efficiency of processing.
[0005] To achieve the above object, the utility model provides the following technical scheme: a work piece fixing device based on numerical control lathe, including base and operation platform, the upper end of base is connected with operation platform, the surface of operation platform is equipped with first movable slot, be provided with fixed mechanism in the base,
[0006] The fixed mechanism includes servo motor, driving gear, fixed rod, baffle, driven gear, movable block and clamping plate, the inside of base is provided with servo motor, the upper end of servo motor is provided with driving gear, the outer side of driving gear is provided with fixed rod, the inner side of base is provided with baffle, the surface of fixed rod is provided with driven gear, the outer side of driven gear is provided with movable block, the upper end of movable block is provided with clamping plate, and the inside of clamping plate is provided with positioning assembly.
[0007] Preferably, the positioning assembly comprises a second movable slot, a movable rod, a positioning plate, a spring and a knob, the inside of the clamping plate is provided with the second movable slot, the inside of the second movable slot is movably connected with the movable rod, the upper end of the movable rod is fixedly connected with the positioning plate, the surface of the positioning plate is fixedly connected with the knob, the outer surface of the movable rod is sleeved with the spring, and the two ends of the spring are respectively abutted against the inner wall of the movable rod and the second movable slot.
[0008] Preferably, the servo motor is fixedly installed at the center position of the base, the lower end of the driving gear is fixedly connected with the output end of the servo motor, the fixed rods are located around the driving gear and are fixedly connected with the inner wall of the base at the bottom, the partition plate is fixedly connected with the inner wall of the base at the upper side edge of the driving gear and is internally provided with a hole matched with the driven gear, the inner side of the driven gear is rotatably connected with the fixed rods, the movable block is located on the surface of the partition plate and is provided with teeth on the outer surface matched with the fixed rods, and the lower end of the clamping plate is connected with the movable block.
[0009] Preferably, the bottom of the movable block is provided with a stabilizing assembly, the stabilizing assembly comprises a sliding rail and a sliding block, the surface of the partition plate is fixedly connected with the sliding rail, the sliding rail is in the shape of an I-beam, the outer side of the sliding rail is movably connected with the sliding block, and the upper end of the sliding block is fixedly connected with the movable block.
[0010] Preferably, the side edge of the movable block is provided with a limiting assembly, the limiting assembly comprises a first limiting rod, a fixed block and a second limiting rod, the outer side of the sliding block is fixedly connected with the first limiting rod, the surface of the partition plate is fixedly connected with the fixed block, the side of the fixed block facing the clamping plate is fixedly connected with the second limiting rod, and the first limiting rod and the second limiting rod are in the same axis.
[0011] Preferably, three groups of jack plugs are equidistantly formed in the movable block, the bottom of the clamping plate is fixedly connected with a connecting rod, and the diameter of the connecting rod is matched with the jack plug.
[0012] Preferably, the bottom edge of the positioning plate is in an arc shape, the bottom of the positioning plate is provided with a rubber pad, and the surface of the rubber pad is provided with wavy anti-skid lines with a depth of two millimeters.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] 1、The utility model discloses a fixing mechanism, the workpiece is placed on the surface of the operation table, the servo motor is started to drive the movable block to move to the center direction, the second pressing plate contacts the workpiece, and the workpiece is fixed, and the device is suitable for fixing workpieces of different sizes and shapes, and the applicability of the device is improved.
[0015] 2. This utility model is equipped with a positioning component, which positions the hardware parts when the clamping plate moves, preventing the workpiece from shifting or shaking, improving the stability of the hardware parts during inspection, and enabling the device to clamp and position workpieces of different heights, which helps to expand the applicability of the device. Attached image description:
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a front view schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic cross-sectional view of the fixing mechanism of this utility model;
[0019] Figure 3 This utility model Figure 1 Cross-sectional view of the structure at the central control panel;
[0020] Figure 4 This utility model Figure 2 A magnified view of part A in the diagram;
[0021] Figure 5 This utility model Figure 3 A magnified view of part B in the diagram;
[0022] Figure 6 This utility model Figure 3 A magnified view of part C in the diagram.
[0023] In the diagram: 1. Base; 2. Operating table; 3. First movable slot; 4. Fixing mechanism; 401. Servo motor; 402. Drive gear; 403. Fixing rod; 404. Partition plate; 405. Driven gear; 406. Movable block; 407. Clamping plate; 5. Positioning assembly; 501. Second movable slot; 502. Movable rod; 503. Positioning plate; 504. Spring; 505. Knob; 6. Stabilizing assembly; 61. Slide rail; 62. Slider; 7. Limiting assembly; 71. First limiting rod; 72. Fixing block; 73. Second limiting rod; 8. Connecting rod; 9. Insertion hole. Detailed implementation method:
[0024] 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, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0025] Please refer to Figures 1-6 The utility model provides an embodiment: a workpiece fixing device based on numerical control lathe, including base 1 and operation platform 2, the upper end of base 1 is connected with operation platform 2, the surface of operation platform 2 is seted with first movable slot 3, be provided with fixed mechanism 4 in base 1,
[0026] Fixed mechanism 4 includes servo motor 401, driving gear 402, fixed rod 403, baffle 404, driven gear 405, movable block 406 and clamping plate 407, the inside of base 1 is provided with servo motor 401, the upper end of servo motor 401 is provided with driving gear 402, the outside of driving gear 402 is provided with fixed rod 403, the inside of base 1 is provided with baffle 404, the surface of fixed rod 403 is provided with driven gear 405, the outside of driven gear 405 is provided with movable block 406, the upper end of movable block 406 is provided with clamping plate 407, and clamping plate 407 is provided with positioning assembly 5;
[0027] The device solves the problem that the range of the clamp is small, different clamps need to be replaced to adapt to different workpieces, and the flexibility and efficiency of processing are limited by the setting of fixed mechanism 4 and positioning assembly 5.
[0028] Further, the positioning assembly 5 includes a second movable slot 501, an activity rod 502, a positioning plate 503, a spring 504, and a knob 505. The clamping plate 407 has a second movable slot 501 inside. The second movable slot 501 is movably connected with the activity rod 502 inside. The upper end of the activity rod 502 is fixedly connected with the positioning plate 503. The surface of the positioning plate 503 is fixedly connected with the knob 505. The outer surface of the activity rod 502 is sleeved with the spring 504. The two ends of the spring 504 are respectively abutted with the activity rod 502 and the inner wall of the second movable slot 501. Figure 4 As shown in the figure, this structure is used to pull the knob 505 to drive the positioning plate 503 and the activity rod 502 to rise along the second movable slot 501. The workpiece is placed under the positioning plate 503. The knob 505 is loosened under the rebounding action of the spring 504, so that the positioning plate 503 is attached to the surface of the hardware workpiece. The hardware workpiece is positioned to prevent deviation.
[0029] Further, the servo motor 401 is fixedly installed at the center position of the base 1, the lower end of the driving gear 402 is fixedly connected with the output end of the servo motor 401, the fixed rods 403 are located at the periphery of the driving gear 402 and are fixedly connected with the inner wall of the base 1 at the bottom, the partition plate 404 is fixedly connected with the inner wall of the base 1 at the upper side edge of the driving gear 402 and has a hole adapted to the driven gear 405 in the inside, the driven gear 405 is rotatably connected with the fixed rods 403 in the inside, the movable blocks 406 are located on the surface of the partition plate 404 and are provided with teeth engaged with the fixed rods 403 on the outer surface, and the clamping plates 407 are connected with the movable blocks 406 at the lower end. Figure 2 As shown in the figure, the structure is used to rotate the driving gear 402 by starting the servo motor 401, and the driven gear 405 drives the movable blocks 406 to move to the center by the mutual engagement of the driving gear 402 and the driven gear 405, so as to fix the workpiece.
[0030] Further, the bottom of the movable block 406 is provided with a stabilizing assembly 6, the stabilizing assembly 6 comprises sliding rails 61 and sliding blocks 62, the surface of the partition plate 404 is fixedly connected with the sliding rails 61, the sliding rails 61 are in the shape of an I-beam, the sliding blocks 62 are movably connected with the outer side of the sliding rails 61, and the upper end of the sliding block 62 is fixedly connected with the movable block 406. Figure 5 As shown in the figure, the structure is used to move the movable blocks 406 by the driven gear 405, and the movable blocks 406 move along the sliding rails 61 by the sliding blocks 62 at the bottom, so as to improve the stability of the device.
[0031] Further, the side edge of the movable block 406 is provided with a limiting assembly 7, the limiting assembly 7 comprises first limiting rods 71, fixed blocks 72 and second limiting rods 73, the outer side of the sliding block 62 is fixedly connected with the first limiting rods 71, the surface of the partition plate 404 is fixedly connected with the fixed blocks 72, and the surface of the fixed block 72 fixedly connected with the second limiting rods 73 on the side facing the clamping plate 407, and the first limiting rods 71 and the second limiting rods 73 are in the same axis. Figure 6 As shown in the figure, the structure is used to move the movable blocks 406 to the center position, drive the first limiting rods 71 on the outer side to move to the position of the second limiting rods 73, so that the first limiting rods 71 and the second limiting rods 73 are in close contact, so as to avoid collision between the movable blocks 406 and improve the protection of the device.
[0032] Further, three groups of insertion holes 9 are equidistantly formed in the movable block 406, the clamping plate 407 is fixedly connected with a connecting rod 8 at the bottom, and the diameter of the connecting rod 8 is adapted to the insertion hole 9. Figure 3 As shown in the figure, the structure is used to connect the clamping plate 407 with the corresponding insertion hole 9 through the connecting rod 8 and the insertion hole 9 according to the size and shape of the workpiece, and the four groups of clamping plates 407 are combined with the workpiece, so as to improve the applicability of the device.
[0033] Further, the bottom edge of the positioning plate 503 is arc-shaped, so that the workpiece within the range of the positioning plate 503 is slid onto the surface of the workpiece through the arc-shaped surface when the clamping plate 407 moves, and the bottom of the positioning plate 503 is provided with a rubber pad, and the surface of the rubber pad is provided with a wave-shaped anti-skid line with a depth of two millimeters. Figure 4 As shown in the drawings, the structure is used to have the buffering and anti-skid characteristics through the rubber, the anti-skid line can improve the anti-skid effect, and the depth of two millimeters can be used to have the anti-skid effect of the anti-skid line after a certain degree of wear.
[0034] Working principle: in use, as shown in Figure 1 and Figure 3 , the workpiece is placed on the surface of the operation table 2, the clamping plate 407 is connected with the corresponding jack 9 through the connecting rod 8 according to the size and shape of the workpiece, and the four groups of clamping plates 407 are combined with the workpiece, as shown in Figure 2 , the servo motor 401 is started to drive the driving gear 402 to rotate, the driving gear 402 and the driven gear 405 are engaged with each other, the driven gear 405 drives the movable block 406 and the clamping plate 407 to move to the center, and the workpiece is fixed, as shown in Figure 5 and Figure 6 , the movable block 406 moves along the slide rail 61 through the slide block 62 at the bottom, the stability of the device is improved, the outer surface of the workpiece is fixed, when the movable block 406 continuously moves to the center position, the first limiting rod 71 on the outer side moves to the position of the second limiting rod 73, the first limiting rod 71 and the second limiting rod 73 are attached to each other, the movable block 406 is limited, and the collision between the movable blocks 406 is avoided, as shown in Figure 4 , when the clamping plate 407 moves, the workpiece height is within the range of the positioning plate 503, and is slid onto the surface of the workpiece through the arc-shaped surface, when the workpiece exceeds the range, the knob 505 is pulled to drive the positioning plate 503 and the movable rod 502 to rise along the second movable groove 501, the workpiece is below the positioning plate 503, the knob 505 is loosened under the rebounding action of the spring 504, the positioning plate 503 is attached to the surface of the hardware workpiece, the hardware workpiece is positioned, and the above is the whole working principle of the utility model.
[0035] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.
Claims
1. A workpiece fixing device based on a CNC lathe, comprising a base (1) and an operating table (2), characterized in that: The upper end of the base (1) is connected to an operating table (2), the surface of the operating table (2) is provided with a first movable groove (3), and a fixing mechanism (4) is provided inside the base (1). The fixing mechanism (4) includes a servo motor (401), a drive gear (402), a fixed rod (403), a partition (404), a driven gear (405), a movable block (406), and a clamping plate (407). The servo motor (401) is installed inside the base (1). The drive gear (402) is installed at the upper end of the servo motor (401). The fixed rod (403) is installed on the outer side of the drive gear (402). The partition (404) is installed on the inner side of the base (1). The driven gear (405) is installed on the surface of the fixed rod (403). The movable block (406) is installed on the outer side of the driven gear (405). The clamping plate (407) is installed at the upper end of the movable block (406). The positioning component (5) is installed inside the clamping plate (407).
2. The workpiece fixing device based on a CNC lathe according to claim 1, characterized in that: The positioning component (5) includes a second movable groove (501), a movable rod (502), a positioning plate (503), a spring (504), and a knob (505). The clamping plate (407) has a second movable groove (501) inside. The movable rod (502) is movably connected inside the second movable groove (501). The upper end of the movable rod (502) is fixedly connected to the positioning plate (503). The surface of the positioning plate (503) is fixedly connected to the knob (505). The outer surface of the movable rod (502) is fitted with a spring (504). The two ends of the spring (504) abut against the inner wall of the movable rod (502) and the second movable groove (501), respectively.
3. The workpiece fixing device based on a CNC lathe according to claim 1, characterized in that: The servo motor (401) is fixedly installed at the center of the base (1). The lower end of the drive gear (402) is fixedly connected to the output end of the servo motor (401). The fixed rod (403) is located around the drive gear (402) and its bottom is fixedly connected to the inner wall of the base (1). The partition (404) is located on the upper edge of the drive gear (402) and is fixedly connected to the inner wall of the base (1). It has a hole inside that matches the driven gear (405). The inner side of the driven gear (405) is rotatably connected to the fixed rod (403). The movable block (406) is located on the surface of the partition (404) and its outer surface is provided with teeth that mesh with the fixed rod (403). The lower end of the clamp (407) is connected to the movable block (406).
4. The workpiece fixing device based on a CNC lathe according to claim 1, characterized in that: The bottom of the movable block (406) is provided with a stabilizing component (6), which includes a slide rail (61) and a slider (62). The slide rail (61) is fixedly connected to the surface of the partition (404). The slide rail (61) is I-shaped. The slider (62) is movably connected to the outer side of the slide rail (61). The movable block (406) is fixedly connected to the upper end of the slider (62).
5. A workpiece fixing device based on a CNC lathe according to claim 4, characterized in that: The movable block (406) is provided with a limiting component (7) on its side. The limiting component (7) includes a first limiting rod (71), a fixing block (72), and a second limiting rod (73). The first limiting rod (71) is fixedly connected to the outer side of the slider (62). The fixing block (72) is fixedly connected to the surface of the partition (404). The second limiting rod (73) is fixedly connected to the side of the surface of the fixing block (72) facing the clamp (407). The first limiting rod (71) and the second limiting rod (73) are in the same axis.
6. The workpiece fixing device based on a CNC lathe according to claim 1, characterized in that: The movable block (406) has three sets of insertion holes (9) equidistantly arranged inside. The bottom of the clamping plate (407) is fixedly connected to a connecting rod (8), and the diameter of the connecting rod (8) is adapted to the insertion holes (9).
7. A workpiece fixing device based on a CNC lathe according to claim 2, characterized in that: The bottom edge of the positioning plate (503) is arc-shaped, and a rubber pad is provided at the bottom of the positioning plate (503), and the surface of the rubber pad is provided with a wavy anti-slip texture with a depth of two millimeters.