Machining center for numerical control machine tool

Abstract

The machining center for the numerical control machine tool comprises a connecting block and a conical block, clamping grooves are formed in the two sides of the conical block, movable cavities are formed in the front side and the rear side of one end of the connecting block, and moving grooves penetrating to the movable cavities are formed in the front side and the rear side of the connecting block. A moving block is slidably connected to the interior of the moving cavity, a sliding groove is formed in the side wall, away from the moving groove, of the interior of the moving cavity, a limiting protruding block close to one end of the connecting block is fixedly connected to the inner wall of the moving cavity, a shifting button is integrally connected to one side of the moving block, and a contraction groove is formed in the opposite face of the moving block; the shifting button is in sliding connection with the moving groove, and a clamping rod is in sliding connection with the interior of the contraction groove. And the clamping head and the clamping groove are fixedly clamped, and the connecting block and the conical block are fixed and cannot be loosened, so that the connecting block and the conical block are conveniently butted and mounted, and the conical block is more convenient to replace.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically to a machining center for CNC machine tools. Background Technology

[0002] CNC machine tools effectively solve the problem of machining complex, precise, small-batch, and multi-variety parts. They are flexible, high-efficiency automated machine tools that represent the development direction of modern machine tool control technology and are a typical mechatronics product.

[0003] A center is a machine tool component used in machining, and there are two types: fixed centers and movable centers. On a lathe, it is used for centering and bearing the weight of the workpiece and the cutting force. The lathe's front center can be directly installed in the lathe spindle taper hole. The front center rotates together with the workpiece, with no relative motion. Current center structures are relatively simple, mostly consisting of an end head and a bushing. After a certain period of use, replacing the center is not very convenient.

[0004] Therefore, we propose a machining center for CNC machine tools. Utility Model Content

[0005] The purpose of this invention is to provide a machining center for CNC machine tools to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a machining center for a CNC machine tool, comprising a connecting block and a conical block. The conical block has locking grooves on both sides. The connecting block has movable cavities on its front and rear sides at one end. The connecting block has moving grooves extending through the movable cavities on its front and rear sides. A moving block is slidably connected inside the movable cavity. A sliding groove is formed on the side wall of the movable cavity away from the moving groove. A limiting protrusion near one end of the connecting block is fixedly connected to the inner wall of the movable cavity. A knob is integrally connected to one side of the moving block. A contraction groove is formed on the opposite side of the moving block. The knob is slidably connected to the moving groove. A locking rod is slidably connected inside the contraction groove. A limiting post is integrally connected to one end of the locking rod. A locking connector located outside the movable cavity is fixed to the other end of the locking rod. An elastic body is fixedly installed on the opposite side of the locking rod. A limiting slot is formed on the side of the locking rod near the locking connector. The limiting post is slidably connected to the sliding groove. The limiting slot is slidably connected to the limiting protrusion.

[0007] Optionally, the front of the connecting block is penetrated by the movable cavity, which is mirror-located inside the main body of the connecting block, and the opening of the movable cavity penetrating the connecting block is located on both sides of the connecting part of the connecting block.

[0008] Optionally, one movable block is provided in each of the two movable cavities, and the shrinkage groove is opened on the opposite side of the two movable blocks, with the two movable blocks arranged symmetrically.

[0009] Optionally, the opening of the shrinkage groove at the end closer to the conical block is larger than that at the end farther from the conical block, and the two ends of the shrinkage groove smoothly transition from large to small through an arc surface.

[0010] Optionally, two locking rods are slidably connected in the same shrinkage groove. The two locking rods are symmetrically arranged, and the locking connectors are symmetrically arranged at the ends of the locking rods. The surface of the locking connector opposite to the conical block is set as an inclined surface, and the inclination angle of the inclined surface of the locking connector is sixty degrees.

[0011] Optionally, three elastic bodies are provided on the opposite surfaces of the two locking rods. The elastic bodies are high-elastic metal sheets, and the three elastic bodies are evenly distributed in the middle and at both ends of the locking rods.

[0012] Optionally, one end of the connecting block is integrally connected to a positioning protrusion ring located between two movable cavities, and one end of the conical block is provided with a positioning slot located between two snap-fit ​​grooves, the positioning slot being inserted into the positioning protrusion ring.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The machining center used in this CNC machine tool, by turning a dial, causes the dial to slide along the moving groove, thereby driving the moving block to move in the movable cavity. As the moving block moves, one end of the locking rod extends into the interior of the shrinking groove. As the shrinking groove continues to shrink, the two opposing locking rods continuously shrink and squeeze the elastic body. As the two locking rods shrink, the locking joint and locking groove loosen. When one end of the locking rod contacts the bottom of the shrinking groove, the two locking rods are locked, which can release the connecting block and the conical block. Then, the dial is moved in the opposite direction, so that one end of the locking rod slides out from the end of the shrinking groove. Under the action of the elastic body, the locking rod and locking joint are reset. Moreover, even if the dial on one side is slid, the locking joint on the other side is still locked with the locking groove.

[0015] 2. The machining center used in this CNC machine tool has a movable cavity inside the connecting block. When the connecting block and the tapered block are inserted, the inner wall of the snap-fit ​​groove is squeezed by the inclined surface of the snap-fit ​​joint, causing the two opposing snap-fit ​​joints to move closer together. This allows the snap-fit ​​joint to extend into the snap-fit ​​groove, thus fixing the snap-fit ​​joint and the snap-fit ​​groove tightly. The connecting block and the tapered block are fixed and will not loosen, making it easier for the connecting block to be installed with the tapered block. This also makes it more convenient to replace the tapered block. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the overall structure of a machining center for a CNC machine tool according to the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of a conical block for a machining center of a CNC machine tool according to the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of a connecting block for a machining center of a CNC machine tool according to the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the movable cavity of a machining center for a CNC machine tool according to the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of a moving block for a machining center of a CNC machine tool according to the present invention.

[0021] In the diagram: 1. Connecting block; 2. Conical block; 3. Movable cavity; 4. Moving groove; 5. Moving block; 6. Snap-fit ​​rod; 7. Toggle button; 8. Elastomer; 9. Snap-fit ​​connector; 10. Shrinkage groove; 11. Limiting post; 12. Limiting bayonet; 13. Limiting protrusion; 14. Slide groove; 15. Snap-fit ​​groove; 16. Positioning protrusion ring; 17. Positioning slot. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0023] Please see Figures 1 to 5This utility model provides a machining center for a CNC machine tool, including a connecting block 1 and a conical block 2. The conical block 2 has locking grooves 15 on both sides. The connecting block 1 has movable cavities 3 on both the front and rear sides of one end. Moving grooves 4 extending through the movable cavities 3 are formed on both the front and rear sides of the connecting block 1. A moving block 5 is slidably connected inside the movable cavity 3. A sliding groove 14 is formed on the side wall of the movable cavity 3 away from the moving groove 4. A limiting protrusion 13 near one end of the connecting block 1 is fixedly connected to the inner wall of the movable cavity 3. A knob 7 is integrally connected to one side of the moving block 5. A contraction groove 10 is formed on the opposite side of the moving block 5. The knob 7 is slidably connected to the moving groove 4. A locking rod 6 is slidably connected inside the contraction groove 10. A limiting post 11 is integrally connected to one end of the locking rod 6. A locking connector 9 located outside the movable cavity 3 is fixed to the other end of the locking rod 6. An elastic body 8 is fixedly installed on the opposite side of the locking rod 6. A groove is formed on the side of the locking rod 6 near the locking connector 9. The limiting latch 12, the limiting post 11 and the slide groove 14 are slidably connected. The limiting latch 12 and the limiting protrusion 13 are slidably connected. By turning the dial 7, the dial 7 slides along the moving groove 4 and drives the moving block 5 to move in the movable cavity 3. As the moving block 5 moves, one end of the locking rod 6 extends into the interior of the shrinking groove 10. As the shrinking groove 10 continues to shrink, the two opposing locking rods 6 continuously shrink and squeeze the elastic body 8. As the shrinking locking joint 9 of the two locking rods 6 disengages from the locking groove 15, when one end of the locking rod 6 contacts the bottom of the shrinking groove 10, the two locking rods 6 are locked, and the connecting block 1 and the conical block 2 can be released. Then, the dial 7 is moved in the opposite direction, so that one end of the locking rod 6 slides out from the end of the shrinking groove 10. Under the action of the elastic body 8, the locking rod 6 and the locking joint 9 are reset. Moreover, even if one side of the dial 7 is slid, the locking joint 9 on the other side is still locked with the locking groove 15.

[0024] The front of the connecting block 1 is penetrated by the movable cavity 3, which is mirror-mounted inside the main body of the connecting block 1. The opening of the movable cavity 3 penetrating the connecting block 1 is located on both sides of the connecting part of the connecting block 1.

[0025] One movable block 5 is provided in each of the two movable cavities 3, and the shrinkage groove 10 is opened on the opposite side of the two movable blocks 5, and the two movable blocks 5 are symmetrically arranged.

[0026] The opening of the shrinkage groove 10 at the end closer to the conical block 2 is larger than that at the end farther away from the conical block 2, and the two ends of the shrinkage groove 10 smoothly transition from large to small through the arc surface.

[0027] Two locking rods 6 are slidably connected in the same shrinkage groove 10. The two locking rods 6 are symmetrically arranged. The locking connectors 9 are symmetrically arranged at the ends of the locking rods 6. The surface of the locking connectors 9 opposite to the conical block 2 is set as an inclined surface. The inclination angle of the inclined surface of the locking connectors 9 is sixty degrees.

[0028] Three elastic bodies 8 are provided on the opposite surfaces of the two locking rods 6. The elastic bodies 8 are high-elastic metal sheets, and the three elastic bodies 8 are evenly distributed in the middle and at both ends of the locking rods 6.

[0029] One end of the connecting block 1 is integrally connected to a positioning protrusion 16 located between two movable cavities 3. One end of the conical block 2 is provided with a positioning slot 17 located between two snap-fit ​​grooves 15. The positioning slot 17 is inserted into the positioning protrusion 16. By opening a movable cavity 3 inside the connecting block 1, when the connecting block 1 and the conical block 2 are inserted, the inner wall of the snap-fit ​​groove 15 is squeezed by the inclined surface of the snap-fit ​​connector 9, causing the two opposing snap-fit ​​rods 6 to move closer, thereby causing the snap-fit ​​connector 9 to extend into the snap-fit ​​groove 15, thereby fixing and clamping the snap-fit ​​connector 9 and the snap-fit ​​groove 15. The connecting block 1 and the conical block 2 are fixed and will not loosen, making it easier for the connecting block 1 to be connected and installed with the conical block 2, and making it more convenient to replace the conical block 2.

[0030] Working principle:

[0031] When the connecting block 1 is inserted into the conical block 2, the inner wall of the locking groove 15, through the inclined surface of the locking connector 9, causes the locking connector 9 and the locking rod 6 to be squeezed, bringing the two opposing locking rods 6 closer together. This allows the locking connector 9 to extend into the locking groove 15, thus securing the locking connector 9 and the locking groove 15 tightly. The connecting block 1 and the conical block 2 are thus fixed and will not loosen. When replacing the conical block 2, by moving the dial 7, the dial 7 slides along the moving groove 4, thereby moving the moving block 5 within the movable cavity 3. As the moving block 5 moves, one end of the locking rod 6 extends into the shrinkage groove 10. As the shrinkage groove 10 decreases, the two opposing locking rods 6 continuously shrink and compress the elastic body 8. As the shrinkage locking joints 9 of the two locking rods 6 disengage from the locking groove 15, when one end of the locking rod 6 contacts the bottom of the shrinkage groove 10, the two locking rods 6 are locked, which can release the connecting block 1 and the conical block 2. Then, the dial 7 is moved in the opposite direction, so that one end of the locking rod 6 slides out from the end of the shrinkage groove 10. Under the action of the elastic body 8, the locking rod 6 and the locking joint 9 are reset. Moreover, even if one side of the dial 7 is slid, the locking joint 9 on the other side is still locked with the locking groove 15.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A machining center for a CNC machine tool, comprising a connecting block (1) and a conical block (2), characterized in that, The conical block (2) has snap-fit ​​grooves (15) on both sides. The connecting block (1) has movable cavities (3) on both the front and rear sides at one end. The connecting block (1) has moving grooves (4) that extend through the movable cavities (3) on both the front and rear sides. A moving block (5) is slidably connected inside the movable cavity (3). A sliding groove (14) is provided on the side wall of the movable cavity (3) away from the moving groove (4). A limiting protrusion (13) near one end of the connecting block (1) is fixedly connected to the inner wall of the movable cavity (3). A knob (7) is integrally connected to one side of the moving block (5). A receiving groove is provided on the opposite side of the moving block (5). The shrinking groove (10) is slidably connected to the toggle (7) and the moving groove (4). The shrinking groove (10) is slidably connected to the inside of the snap-fit ​​rod (6). One end of the snap-fit ​​rod (6) is integrally connected to the limiting post (11). The other end of the snap-fit ​​rod (6) is fixed to the snap-fit ​​connector (9) located outside the movable cavity (3). An elastic body (8) is fixedly installed on the opposite side of the snap-fit ​​rod (6). A limiting slot (12) is opened on the side of the snap-fit ​​rod (6) near the snap-fit ​​connector (9). The limiting post (11) is slidably connected to the sliding groove (14). The limiting slot (12) is slidably connected to the limiting protrusion (13).

2. A machining center for a CNC machine tool according to claim 1, characterized in that, The front of the connecting block (1) is penetrated by the movable cavity (3), which is mirror-arranged inside the main body of the connecting block (1). The opening of the movable cavity (3) penetrating the connecting block (1) is located on both sides of the connecting part of the connecting block (1).

3. A machining center for a CNC machine tool according to claim 1, characterized in that, The movable block (5) is provided in each of the two movable cavities (3), and the shrinkage groove (10) is opened on the opposite side of the two movable blocks (5). The two movable blocks (5) are arranged symmetrically.

4. A machining center for a CNC machine tool according to claim 1, characterized in that, The opening of the shrinkage groove (10) is larger at the end near the conical block (2) than at the end away from the conical block (2), and the two ends of the shrinkage groove (10) smoothly transition from large to small through an arc surface.

5. A machining center for a CNC machine tool according to claim 1, characterized in that, Two locking rods (6) are slidably connected in the same shrinkage groove (10). The two locking rods (6) are symmetrically arranged. The locking connectors (9) are symmetrically arranged at the ends of the locking rods (6). The face of the locking connector (9) opposite to the conical block (2) is set as an inclined surface. The inclination angle of the inclined surface of the locking connector (9) is sixty degrees.

6. A machining center for a CNC machine tool according to claim 1, characterized in that, Three elastic bodies (8) are provided on the opposite surfaces of the two locking rods (6). The elastic bodies (8) are high-elastic metal sheets, and the three elastic bodies (8) are evenly arranged in the middle and at both ends of the locking rods (6).

7. A machining center for a CNC machine tool according to claim 1, characterized in that, One end of the connecting block (1) is integrally connected to a positioning protrusion (16) located between two movable cavities (3), and one end of the conical block (2) is provided with a positioning slot (17) located between two snap-fit ​​grooves (15), and the positioning slot (17) is inserted into the positioning protrusion (16).

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