Workpiece fixing table of multifunctional numerical control machine tool

Abstract

The utility model relates to the technical field of numerical control machine tools, and discloses a multifunctional numerical control machine tool workpiece fixing table which comprises a workbench, fixing plates are fixedly connected to the left side and the right side of the top of the workbench, threaded rods are in threaded connection with the interiors of the two fixing plates, and mounting blocks are arranged on the front sides and the rear sides of the two fixing plates. Threaded holes are formed in the front sides and the rear sides of the two fixing plates correspondingly, bolts penetrate through the sides, away from each other, of the two mounting blocks on the left side and the sides, away from each other, of the two mounting blocks on the right side correspondingly, and the adjacent bolts are in threaded connection with the threaded holes correspondingly. The bolt is screwed out of the threaded hole, the installation block and the fixing plate are removed, the sliding rod is not limited by the round hole, the extrusion blocks in different shapes are pulled out from the two sides, the extrusion blocks in different shapes are replaced, a new extrusion block is inserted into the round hole through the sliding rod, the installation block and the semicircular groove of the fixing plate are aligned, the bolt is screwed in, and the extrusion blocks are rapidly disassembled. And the clamping requirements of workpieces in different shapes are met.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to a multifunctional CNC machine tool workpiece fixing table. Background Technology

[0002] A functional CNC machine tool workpiece fixing table is an auxiliary device used to fix workpieces when machining them with a CNC machine tool. It is a basic platform for placing workpieces and has high flatness and hardness to ensure the stability of workpiece placement and machining process. The table surface is equipped with T-slots and screw holes for installing fixtures or directly fixing workpieces.

[0003] The fixed table supports multiple clamping modes, which can be switched manually or automatically. However, the switching process requires recalibrating the positioning or changing the fixture, which takes a long time and negates the efficiency advantage brought by the multi-station system. Existing technologies use positioning pins, positioning blocks, and grating rulers to achieve rapid workpiece positioning. These devices can determine the accurate position of the workpiece in a short time and reduce positioning time. At the same time, high-precision positioning devices are used to ensure positioning accuracy. However, in actual use, when encountering objects of different shapes, changing the fixture requires disassembling too many parts, which reduces its working efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a multi-functional CNC machine tool workpiece fixing table, which aims to improve the problem in the prior art that when encountering objects of different shapes, changing the fixture requires disassembling too many parts, resulting in reduced work efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-functional CNC machine tool workpiece fixing table, including a worktable, with fixing plates fixedly connected to the top left and right sides of the worktable, threaded rods threadedly connected inside the two fixing plates, mounting blocks provided on the front and rear sides of the two fixing plates, threaded holes provided on the front and rear sides of the two fixing plates, bolts penetrating the opposite sides of the two mounting blocks on the left and the opposite sides of the two mounting blocks on the right, and multiple bolts threadedly connected to the threaded holes between adjacent bolts, two semi-circular grooves provided on the front and rear sides of the two fixing plates and between adjacent mounting blocks, sliding rods slidably connected between adjacent semi-circular grooves on the left and the opposite sides of the multiple semi-circular grooves on the right, and the same extrusion block fixedly connected between adjacent sliding rods on the left and the opposite sides of the multiple sliding rods on the right, with grooves provided on the opposite sides of the two extrusion blocks, and a chip blowing mechanism provided on the top rear side of the worktable.

[0006] As a further description of the above technical solution:

[0007] The chip blowing mechanism includes a slide rail, the bottom of which is fixedly connected to the rear top of the workbench. A placement groove is provided on the rear top of the workbench. The bottom of the slide rail is fixedly connected to the bottom inner side of the placement groove. A slider is slidably connected to the top of the slide rail. Telescopic rods are fixedly connected to both the left and right sides of the slider. The two telescopic rods are fixedly connected to the left and right sides inside the placement groove on opposite sides. A mounting plate is fixedly connected to the top of the slider, and a fan is fixedly connected to the top of the mounting plate.

[0008] As a further description of the above technical solution:

[0009] The outer walls of the bolts are perforated with washers, and the washers are all designed with a smooth shape.

[0010] As a further description of the above technical solution:

[0011] A cross is fixedly connected to the opposite side of each of the two threaded rods, and a ring is fixedly connected to the outer wall of each of the two crosses.

[0012] As a further description of the above technical solution:

[0013] Multiple anti-slip tubes are fixedly connected to the outer walls of both rings, and the outer walls of the multiple anti-slip tubes are all designed with chamfers.

[0014] As a further description of the above technical solution:

[0015] The workbench is fixedly connected to four corners at the bottom, and anti-slip sleeves are fixedly connected to the bottom of each of the support columns.

[0016] As a further description of the above technical solution:

[0017] A lamp holder is fixedly connected to the top of each of the two fixed plates, and a lighting lamp is rotatably connected to the top of each of the two lamp holders.

[0018] As a further description of the above technical solution:

[0019] Both of the fixing plates are symmetrically designed, and the outer walls of the multiple sliding rods are matched with the interior of the semi-circular groove.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the bolt is turned to unscrew it from the threaded hole, thereby releasing the fixed connection between the mounting block and the fixing plate. The combined structure of the slide rod and the extrusion block loses the round hole limit and can be pulled out from both sides. Extrusion blocks of different shapes can be replaced. The new extrusion block is inserted into the round hole through the slide rod, aligned with the semi-circular groove of the mounting block and the fixing plate, and the bolt is screwed in. The extrusion block can be quickly disassembled to meet the clamping requirements of workpieces of different shapes.

[0022] 2. In this utility model, the telescopic rod pushes the slider to slide left and right along the slide rail. The mounting plate on the top of the slider moves with the slider, driving the fan to move back and forth horizontally along the top of the worktable. The fan runs continuously to generate directional airflow, and the coverage area expands to the entire area of ​​the worktable as the slider moves. Waste, dust and debris are blown away from the surface of the worktable under the action of the airflow and move to the edge or the preset collection area. Attached Figure Description

[0023] Figure 1 This is a perspective view of the multifunctional CNC machine tool workpiece fixing table proposed in this utility model;

[0024] Figure 2 This is a front view of the multifunctional CNC machine tool workpiece fixing table proposed in this utility model;

[0025] Figure 3 This is a right view of the multifunctional CNC machine tool workpiece fixing table proposed in this utility model;

[0026] Figure 4 This is an exploded view of the fixing plate of the multifunctional CNC machine tool workpiece fixing table proposed in this utility model;

[0027] Figure 5 This is an exploded view of the slide rail of the multifunctional CNC machine tool workpiece fixing table proposed in this utility model.

[0028] Legend:

[0029] 1. Workbench; 2. Chip blowing mechanism; 201. Placement slot; 202. Slide rail; 203. Slider; 204. Telescopic rod; 205. Mounting plate; 206. Fan; 3. Fixing plate; 4. Threaded rod; 5. Mounting block; 6. Threaded hole; 7. Bolt; 8. Semicircular groove; 9. Slide rod; 10. Extrusion block; 11. Groove; 12. Gasket; 13. Cross; 14. Ring; 15. Anti-slip tube; 16. Support column; 17. Anti-slip sleeve; 18. Lamp holder; 19. Lighting lamp. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a multifunctional CNC machine tool workpiece fixing table, including a worktable 1. Fixing plates 3 are fixedly connected to the left and right sides of the top of the worktable 1. Threaded rods 4 are threadedly connected to the interior of both fixing plates 3. Rotating the threaded rods 4 allows them to move inwards or outwards. Mounting blocks 5 are provided on the front and rear sides of both fixing plates 3. Threaded holes 6 are provided on the front and rear sides of both fixing plates 3. Bolts 7 penetrate the opposite sides of the two mounting blocks 5 on the left and the opposite sides of the two mounting blocks 5 on the right. Multiple adjacent bolts 7 are threadedly connected to the threaded holes 6. The mounting blocks 5 are installed by rotating the bolts 7 into the threaded holes 6. Two semi-circular grooves 8 are provided on the front and rear sides of the two fixing plates 3 and between the adjacent mounting blocks 5. After the fixed plate 3 and the mounting block 5 are installed, the semi-circular grooves 8 between them form a circular hole. The adjacent semi-circular grooves 8 on the left and the adjacent semi-circular grooves 8 on the right are slidably connected with sliding rods 9. The sliding rods 9 can move left and right inside the circular hole. The adjacent sliding rods 9 on the left and the adjacent sliding rods 9 on the right are fixedly connected with the same extrusion block 10. The two extrusion blocks 10 have grooves 11 on the opposite sides. The threaded rod 4 moves inward to push the extrusion block 10 inward. The sliding rod 9 can move inward inside the circular hole to prevent the extrusion block 10 from rotating. When it is necessary to disassemble the extrusion block 10, the bolt 7 is turned and the mounting block 5 is removed to replace the extrusion block 10. It can clamp different objects. A chip blowing mechanism 2 is provided on the rear side of the top of the workbench 1.

[0032] Specifically, a fixed plate 3 is fixedly connected to the top left and right sides of the workbench 1. Both fixed plates 3 have threaded rods 4 threaded inside. Rotating the threaded rods 4 allows them to move inward or outward horizontally. Mounting blocks 5 are provided on the front and rear sides of both fixed plates 3, with threaded holes 6 at corresponding positions. Bolts 7 penetrate the outer sides of the two mounting blocks 5 on the left and the two mounting blocks 5 on the right, threaded into the threaded holes 6. During installation, the bolts 7 are screwed into the threaded holes 6, fixing the mounting blocks 5 to the front and rear sides of the fixed plates 3. Two semi-circular grooves 8 are provided on the front and rear sides of the fixed plates 3 adjacent to the mounting blocks 5. After the mounting blocks 5 are fixed by the bolts 7, the semi-circular grooves 8 adjacent to the mounting blocks 5 on the fixed plates 3 form a complete circular hole. Sliding rods 9 are slidably connected within the multiple circular holes on the left and right sides. The sliding rods 9 can move left and right horizontally within the circular holes. Extrusion blocks 10 are fixedly connected between the left set of sliding rods 9 and the right set of sliding rods 9. Grooves 11 are provided on both opposite sides of the 0. When it is necessary to clamp the workpiece, rotate the threaded rod 4 to move it inward to the fixed plate 3. The end of the threaded rod 4 pushes the extrusion block 10 to move inward synchronously. At this time, the slide rod 9 slides inward with the extrusion block 10 in the round hole. Since the sliding fit between the slide rod 9 and the round hole restricts the rotation of the extrusion block 10, it ensures that it only moves in the horizontal direction. Thus, the groove 11 generates symmetrical extrusion force on the workpiece, achieving stable clamping. When it is necessary to replace the extrusion block 10 of different specifications to adapt to workpieces of different shapes, simply turn the bolt 7 counterclockwise to unscrew the bolt 7 from the threaded hole 6, and the mounting block 5 can be removed. The combined structure of the slide rod 9 and the extrusion block 10 loses its limit and can be pulled out of the round hole as a whole, thereby quickly replacing the extrusion block 10 of different sizes. This meets the adaptability to workpieces of different shapes and improves clamping efficiency through modular design. It is suitable for CNC machining scenarios that require frequent switching of workpiece types. While ensuring clamping stability, it reduces the complexity of operation.

[0033] Reference Figure 1 and Figure 5 The chip blowing mechanism 2 includes a slide rail 202. The bottom of the slide rail 202 is fixedly connected to the rear top of the worktable 1. A placement groove 201 is provided on the rear top of the worktable 1. The bottom of the slide rail 202 is fixedly connected to the bottom inner side of the placement groove 201. A slider 203 is slidably connected to the top of the slide rail 202. The slider 203 can slide left and right on the slide rail 202. Telescopic rods 204 are fixedly connected to both the left and right sides of the slider 203. The two telescopic rods 204 are fixedly connected to the left and right sides inside the placement groove 201 on opposite sides. The telescopic rods 204 push the slider 203 to move. A mounting plate 205 is fixedly connected to the top of the slider 203. A fan 206 is fixedly connected to the top of the mounting plate 205. The movement of the slider 203 drives the fan 206 to move left and right, blowing away the waste chips on the top of the worktable 1, preventing uneven placement due to waste chips when clamping objects.

[0034] Specifically, a placement groove 201 is provided on the rear top side of the workbench 1. The bottom of the slide rail 202 is fixedly connected to the bottom inner side of the placement groove 201, and the top of the slide rail 202 is slidably connected to a slider 203. The slider 203 can slide left and right along the slide rail 202. A telescopic rod 204 is fixedly connected to each of the left and right sides of the slider 203. The outer ends of the two telescopic rods 204 are fixedly connected to the left and right inner walls of the placement groove 201, respectively. Through the extension and retraction of the telescopic rods 204, the slider 203 can be pushed to move smoothly on the slide rail 202. The top of the slider 203... A mounting plate 205 is fixedly installed, and a fan 206 is provided above the mounting plate 205. When the telescopic rod 204 drives the slider 203 to slide left and right, the fan 206 moves synchronously with the slider 203. The airflow it blows can cover the working area on the top of the worktable 1. Before the workpiece is clamped, the fan 206 is started. Through the reciprocating movement of the slider 203, the residual cutting chips, dust and other debris on the surface of the worktable 1 can be effectively blown away, avoiding uneven placement or positioning deviation of the workpiece due to the accumulation of chips, which would affect the clamping accuracy and processing quality.

[0035] Reference Figure 3 and Figure 4 Multiple bolts 7 have washers 12 penetrating their outer walls. All washers 12 are rounded to prevent bolts 7 from being tightened. Two threaded rods 4 are fixedly connected to crosses 13 on their opposite sides. Both crosses 13 are fixedly connected to their outer walls with rings 14 to facilitate rotation of the threaded rods 4. Both rings 14 are fixedly connected to their outer walls with multiple anti-slip tubes 15. The outer walls of the anti-slip tubes 15 are chamfered to increase friction with the hand.

[0036] Specifically, washers 12 penetrate the outer walls of multiple bolts 7. The washers 12 have a smooth design, and their thickness matches the depth of the threaded holes 6. When the bolts 7 are screwed into the threaded holes 6, the washers 12 can evenly distribute the pressure through their smooth surfaces, preventing the bolts 7 from getting stuck due to excessive tightening and the mounting block 5 being forcibly squeezed against the fixing plate 3. This facilitates disassembly later. The outer ends of the two threaded rods 4 are respectively fixedly connected to crosses 13. The four arms of the crosses 13 are all fixedly connected to the inner wall of the ring 14, forming a rotating structure that is easy to grip. Multiple anti-slip tubes 15 are evenly fixed to the outer wall of the ring 14. The anti-slip tubes 15 are made of rubber, and their outer walls are chamfered to form a rough texture, increasing the friction when the hand contacts them. Operators can easily rotate the threaded rods 4 by pinching the ring 14 or the anti-slip tubes 15. The symmetrical structure of the crosses 13 ensures even force application and avoids the threaded rods 4 from becoming skewed and stuck due to unilateral force. Combined with the anti-slip design, it can apply force stably even in oily environments, significantly improving the convenience and efficiency of clamping operations.

[0037] Reference Figure 2 and Figure 4Support columns 16 are fixedly connected to the four corners of the bottom of the workbench 1. Anti-slip sleeves 17 are fixedly connected to the bottom of the multiple support columns 16 to prevent the device from moving when it is started. Lamp holders 18 are fixedly connected to the top of the two fixed plates 3. Lighting lamps 19 are rotatably connected to the top of the two lamp holders 18 to increase the brightness of the working area. The two fixed plates 3 adopt a symmetrical design. The outer walls of multiple slide rods 9 match the interior of the semi-circular groove 8.

[0038] Specifically, support columns 16 are fixedly connected to the four corners of the bottom of the workbench 1. Each support column 16 is fitted with an anti-slip sleeve 17 at its bottom. The anti-slip sleeve 17 is made of rubber, which increases the friction with the ground to effectively suppress displacement and shaking when the device is started, ensuring overall stability. Each of the two fixed plates 3 has a lamp holder 18 fixed to its top. The top of the lamp holder 18 is rotatably connected to the lighting lamp 19 through a rotating shaft, which can flexibly adjust the lighting angle according to processing needs to ensure sufficient light in the working area. The two fixed plates 3 adopt a completely symmetrical geometric design to ensure that the clamping mechanism is evenly stressed and to avoid workpiece skewing due to structural deviation. The slide rod 9 installed between the fixed plate 3 and the mounting block 5 has an outer diameter that precisely matches the inner diameter of the circular hole formed by splicing the semi-circular groove 8, ensuring that the slide rod 9 can move smoothly. It also restricts its radial shaking through a tight fit, thereby providing stable guiding support when the extrusion block 10 moves, ensuring clamping accuracy.

[0039] Working principle: Rotating the threaded rod 4, the threaded engagement between the threaded rod 4 and the fixed plate 3 causes it to move inward horizontally. The end of the threaded rod 4 pushes the extrusion block 10 inward simultaneously. The sliding rod 9 slides within the circular hole where the fixed plate 3 and the mounting block 5 meet. Due to the precise match between the sliding rod 9 and the circular hole, the rotation of the extrusion block 10 is restricted, allowing it to only move horizontally. The extrusion block 10 applies symmetrical extrusion force to the workpiece through the groove 11. The guiding effect of the sliding rod 9 ensures the accuracy of the clamping position. The workpiece is now stably fixed. When it is necessary to adapt to workpieces of different shapes, turn the bolt 7 counterclockwise to unscrew it from the threaded hole 6 of the fixing plate 3, release the fixed connection between the mounting block 5 and the fixing plate 3. After removing the mounting block 5, the combination structure of the slide rod 9 and the extrusion block 10 loses the round hole limit and can be directly pulled out from both sides. Extrusion blocks 10 of different shapes can be replaced. Then, insert the new extrusion block 10 into the round hole through the slide rod 9, align it with the semi-circular groove 8 of the mounting block 5 and the fixing plate 3, and screw the bolt 7 back in to fix it, thus completing the quick replacement.

[0040] Furthermore, the telescopic rod 204 extends and retracts to the sides or the middle, pushing the slider 203 to slide left and right along the slide rail 202. The slide rail 202 is fixedly connected to the placement groove 201 at the bottom, providing stable sliding guidance and ensuring that the slider 203 moves along a straight trajectory without deviation. The mounting plate 205 on the top of the slider 203 moves with the slider 203, driving the fan 206 to move laterally back and forth along the top of the workbench 1. The fan 206 continuously runs to generate directional airflow. The airflow coverage area expands to the entire area of ​​the workbench 1 as the slider 203 moves. Waste, dust and debris are blown away from the surface of the workbench 1 under the action of the airflow and move to the edge or the preset collection area.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-functional CNC machine tool workpiece fixing table, including a worktable (1), characterized in that: The top left and right sides of the workbench (1) are fixedly connected to fixed plates (3). Threaded rods (4) are threaded into the interior of both fixed plates (3). Mounting blocks (5) are provided on the front and rear sides of both fixed plates (3). Threaded holes (6) are provided on the front and rear sides of both fixed plates (3). Bolts (7) penetrate the two mounting blocks (5) on the left and the two mounting blocks (5) on the right. Multiple bolts (7) are threaded into the threaded holes (6) adjacent to each other. Two semi-circular grooves (8) are provided on the front and rear sides of the fixed plate (3) and between the adjacent mounting blocks (5). Sliding rods (9) are slidably connected between the adjacent semi-circular grooves (8) on the left and between the adjacent semi-circular grooves (8) on the right. The same extrusion block (10) is fixedly connected between the adjacent sliding rods (9) on the left and between the adjacent sliding rods (9) on the right. Grooves (11) are provided on the opposite sides of the two extrusion blocks (10). A chip blowing mechanism (2) is provided on the rear top side of the worktable (1).

2. The multifunctional CNC machine tool workpiece fixing table according to claim 1, characterized in that: The chip blowing mechanism (2) includes a slide rail (202), the bottom of which is fixedly connected to the top rear side of the workbench (1). The workbench (1) has a placement slot (201) on the top rear side. The bottom of the slide rail (202) is fixedly connected to the inner bottom of the placement slot (201). A slider (203) is slidably connected to the top of the slide rail (202). Telescopic rods (204) are fixedly connected to the left and right sides of the slider (203). The two telescopic rods (204) are fixedly connected to the left and right sides inside the placement slot (201) on opposite sides. A mounting plate (205) is fixedly connected to the top of the slider (203). A fan (206) is fixedly connected to the top of the mounting plate (205).

3. The multifunctional CNC machine tool workpiece fixing table according to claim 1, characterized in that: The outer walls of the plurality of bolts (7) are perforated with washers (12), and the plurality of washers (12) are all of a smooth design.

4. The multifunctional CNC machine tool workpiece fixing table according to claim 1, characterized in that: A cross (13) is fixedly connected to the opposite side of each of the two threaded rods (4), and a ring (14) is fixedly connected to the outer wall of each of the two crosses (13).

5. The multifunctional CNC machine tool workpiece fixing table according to claim 4, characterized in that: Multiple anti-slip tubes (15) are fixedly connected to the outer walls of both rings (14), and the outer walls of the multiple anti-slip tubes (15) are all designed with chamfers.

6. The multifunctional CNC machine tool workpiece fixing table according to claim 1, characterized in that: The workbench (1) has four fixed support columns (16) at the bottom corners, and the bottom of each of the support columns (16) is fixedly connected with an anti-slip sleeve (17).

7. The multifunctional CNC machine tool workpiece fixing table according to claim 1, characterized in that: The top of each of the two fixed plates (3) is fixedly connected to a lamp holder (18), and the top of each of the two lamp holders (18) is rotatably connected to a lighting lamp (19).

8. The multifunctional CNC machine tool workpiece fixing table according to claim 1, characterized in that: Both of the fixed plates (3) are symmetrically designed, and the outer walls of the multiple sliding rods (9) are matched with the interior of the semi-circular groove (8).

Images