Workpiece clamping device for automatic numerical control machine tool

Abstract

The utility model relates to the technical field of numerical control machine tools, and provides a workpiece clamping device for an automatic numerical control machine tool, which comprises a bottom plate, a first fixing component is arranged at the top of the bottom plate, a height adjusting component is arranged at the top of the bottom plate, and a second fixing component is arranged on the outer side of the height adjusting component; by arranging the first fixing assembly and the second fixing assembly, when a workpiece is prepared to be machined, a first motor is driven to drive a first two-way threaded rod to rotate, and at the moment, two first moving blocks on the surface of a first driving part move, so that a first semicircular block can conduct workpiece machining on the workpiece; and a first friction pad prevents the workpiece from sliding, a third motor is driven to drive a second two-way threaded rod to rotate, two second connecting blocks on the surface of the second two-way threaded rod move, a second semicircular block further fixes the workpiece, and the effect that the workpiece cannot deviate due to vibration in the machining process is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, and more specifically, to a workpiece clamping device for automatic numerical control machine tools. Background Art

[0002] The basic components of CNC machine tools include processing program carrier, CNC device, servo drive device, machine tool body and other auxiliary devices. During the CNC machine tool processing and production process, it is necessary to process workpieces with many cylindrical shells of different outer diameters.

[0003] After searching, an existing patent (Announcement No.: CN219649272U) discloses a workpiece clamping device for a CNC machine tool, comprising a machining jig plate in the inner cavity of the CNC machine tool, wherein the bottom surface of the machining jig plate is rotated to be connected to a support platform, and an inner pulling plate acting on the inner wall of the hollow cylindrical workpiece is detachably mounted on the top surface of the opposite ends of the two movable plates, and a fixed vertical plate is welded to the top surface of the back end of the two movable plates, and the opposite side surfaces of the two fixed vertical plates are connected to an outer clamping plate acting on the outer wall of the hollow cylindrical workpiece via a hydraulic push-pull mechanism, and the interior of the machining jig plate is also provided with a driving mechanism for driving the two movable plates to move relative to each other. This workpiece clamping device for a CNC machine tool not only has an inner pulling structure, but also an external clamping structure, which satisfies the effect of bidirectional clamping, thereby improving its clamping stability and meeting the use in different occasions.

[0004] However, the above solution still has certain shortcomings. During the processing of the workpiece, due to the certain shaking generated during the processing, clamping the workpiece only at both ends will cause the workpiece to slide toward the two ends that are not fixed due to vibration during the processing, thereby causing errors in the processing size of the workpiece or even damage.

[0005] In view of this, the utility model proposes a workpiece clamping device for an automated CNC machine tool. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a workpiece clamping device for an automated CNC machine tool to solve the problem that during the processing of the workpiece, due to a certain amount of shaking generated during the processing, clamping and fixing the workpiece only from both ends will cause the workpiece to slide toward the two ends that are not fixed due to vibration during the processing, thereby causing errors in the processing size of the workpiece or even damage.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a workpiece clamping device for an automated CNC machine tool, comprising a base plate, a first fixing component is provided on the top of the base plate for fixing two sides of the workpiece, a height adjustment component is provided on the top of the base plate, and a second fixing component is provided on the outside of the height adjustment component for fixing the remaining two sides of the workpiece.

[0008] Preferably, the first fixing assembly includes a fixed base, a first driving component, and a first fixing component. The fixed base is fixedly installed on the top of the base plate, the first driving component is fixedly installed inside the fixed base, and the first fixing component is connected to the outer surface of the first driving component.

[0009] Preferably, the first driving component includes a first motor, a first bidirectional threaded rod, and a first moving block. The first motor is fixedly installed on the side end of the fixed base. One end of the first bidirectional threaded rod is fixedly connected to the output end of the first motor, and the other end is fixedly installed inside the fixed base. The first moving block is threadedly connected to the outer surface of the first bidirectional threaded rod.

[0010] Preferably, the first fixing component includes a first connecting block, a first semicircular block, and a first friction pad, the first connecting block is fixedly connected to the top of the first moving block, the first semicircular block is fixedly connected to the side end of the first connecting block, and the first friction pad is fixedly connected to the side of the first semicircular block away from the first connecting block.

[0011] Preferably, the height adjustment assembly includes a first fixed shell and a second driving component, the first fixed shell is fixedly installed on the top of the base plate, and the second driving component is fixedly installed inside the first fixed shell.

[0012] Preferably, the second driving component includes a second motor, a one-way threaded rod, and a connecting frame. The second motor is fixedly installed on the top of the first fixed shell. One end of the one-way threaded rod is fixedly connected to the output end of the second motor, and the other end is fixedly installed inside the first fixed shell. The connecting frame is threadedly connected to the outer surface of the one-way threaded rod.

[0013] Preferably, the second fixing assembly includes a second fixing shell, a third driving component, and a second fixing component, the second fixing shell is fixedly connected to the outer surface of the connecting frame, the third driving component is fixedly installed on the side end of the second fixing shell, and the second fixing component is connected to the outside of the third driving component.

[0014] Preferably, the third driving component includes a third motor and a second bidirectional threaded rod, the third motor is fixedly mounted on the side end of the second fixed shell, one end of the second bidirectional threaded rod is fixedly connected to the output end of the third motor, and the other end is fixedly mounted inside the second fixed shell, the second fixed component includes a second connecting block, a second semicircular block, and a second friction pad, the second connecting block is threadedly connected to the outer surface of the second bidirectional threaded rod, the second semicircular block is fixedly connected to the side end of the second connecting block, and the second friction pad is fixedly connected to the side of the second semicircular block away from the second connecting block.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model is provided with a first fixing component and a second fixing component. When preparing to process a workpiece, the first motor is driven to drive the first bidirectional threaded rod to rotate. At this time, the two first moving blocks on the surface of the first driving component are moved, so that the first semicircular block can work on the workpiece, and the first friction pad prevents the workpiece from sliding. The third motor is driven to drive the second bidirectional threaded rod to rotate, so that the two second connecting blocks on the surface of the second bidirectional threaded rod are moved, so that the second semicircular block further fixes the workpiece, thereby achieving the effect of preventing the workpiece from being offset due to vibration during the processing;

[0017] The utility model is provided with a height adjustment component. Due to the different heights of workpieces, for a taller workpiece, only the bottom is fixed, which is not firmly fixed. By driving the second motor to drive the one-way threaded rod to continue rotating, the connecting frame can adjust the height of the surface of the one-way threaded rod, thereby achieving the effect of adjusting the fixed position according to the height of different workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic structural diagram of the first fixing component of the present invention;

[0020] Figure 3 This is a schematic diagram of the height adjustment component structure of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the second fixing component of the present invention.

[0022] [reference numerals]

[0023] 1. Bottom plate; 2. First fixing component; 21. Fixed base; 22. First driving component; 221. First motor; 222. First bidirectional threaded rod; 223. First moving block; 23. First fixing component; 231. First connecting block; 232. First semicircular block; 233. First friction pad; 3. Height adjustment component; 31. First fixed shell; 32. Second driving component; 321. Second motor; 322. One-way threaded rod; 323. Connecting frame; 4. Second fixing component; 41. Second fixed shell; 42. Third driving component; 421. Third motor; 422. Second bidirectional threaded rod; 43. Second fixing component; 431. Second connecting block; 432. Second semicircular block; 433. Second friction pad. DETAILED DESCRIPTION

[0024] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] Example 1

[0026] See also Figure 1 、 Figure 2 as well as Figure 3 : The workpiece clamping device for an automated CNC machine tool includes a base plate 1, a first fixing component 2 is provided on the top of the base plate 1, and is used to fix two sides of the workpiece. A height adjustment component 3 is provided on the top of the base plate 1.

[0027] Specifically, the first fixing component 2 includes a fixed base 21, a first driving component 22, and a first fixing component 23. The fixed base 21 is fixedly installed on the top of the base plate 1, the first driving component 22 is fixedly installed inside the fixed base 21, and the first fixing component 23 is connected to the outer surface of the first driving component 22. The height adjustment component 3 includes a first fixed shell 31 and a second driving component 32. The first fixed shell 31 is fixedly installed on the top of the base plate 1, and the second driving component 32 is fixedly installed inside the first fixed shell 31.

[0028] Furthermore, the first driving component 22 includes a first motor 221, a first bidirectional threaded rod 222, and a first moving block 223. The first motor 221 is fixedly installed on the side end of the fixed base 21. One end of the first bidirectional threaded rod 222 is fixedly connected to the output end of the first motor 221, and the other end is fixedly installed inside the fixed base 21. The first moving block 223 is threadedly connected to the outer surface of the first bidirectional threaded rod 222. The first fixed component 23 includes a first connecting block 231, a first semicircular block 232, and a first friction pad 233. The first connecting block 231 is fixedly connected to the top of the first moving block 223, the first semicircular block 232 is fixedly connected to the side end of the first connecting block 231, and the first friction pad 233 is fixedly connected to the side of the first semicircular block 232 away from the first connecting block 231.

[0029] Furthermore, the second driving component 32 includes a second motor 321, a one-way threaded rod 322, and a connecting frame 323. The second motor 321 is fixedly installed on the top of the first fixed shell 31. One end of the one-way threaded rod 322 is fixedly connected to the output end of the second motor 321, and the other end is fixedly installed inside the first fixed shell 31. The connecting frame 323 is threadedly connected to the outer surface of the one-way threaded rod 322.

[0030] In this embodiment, when preparing to process the workpiece, the first bidirectional threaded rod 222 is driven to rotate by driving the first motor 221. At this time, the two first moving blocks 223 on the surface of the first driving component 22 are moved, so that the first semicircular block 232 can move the workpiece, and the first friction pad 233 prevents the workpiece from sliding. Due to the different heights of the workpieces, for higher workpieces, only the bottom is fixed, which is not firm. By driving the second motor 321 to drive the unidirectional threaded rod 322 to continue to rotate, the connecting frame 323 can adjust the height on the surface of the unidirectional threaded rod 322.

[0031] Example 2

[0032] See also Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4 : A second fixing component 4 is provided on the outside of the height adjustment component 3 for fixing the remaining two sides of the workpiece.

[0033] Specifically, the second fixed assembly 4 includes a second fixed shell 41, a third driving component 42, and a second fixed component 43. The second fixed shell 41 is fixedly connected to the outer surface of the connecting frame 323, the third driving component 42 is fixedly installed at the side end of the second fixed shell 41, and the second fixed component 43 is connected to the outside of the third driving component 42.

[0034] Furthermore, the third driving component 42 includes a third motor 421 and a second bidirectional threaded rod 422. The third motor 421 is fixedly mounted on the side end of the second fixed shell 41. One end of the second bidirectional threaded rod 422 is fixedly connected to the output end of the third motor 421, and the other end is fixedly mounted inside the second fixed shell 41. The second fixed component 43 includes a second connecting block 431, a second semicircular block 432, and a second friction pad 433. The second connecting block 431 is threadedly connected to the outer surface of the second bidirectional threaded rod 422, the second semicircular block 432 is fixedly connected to the side end of the second connecting block 431, and the second friction pad 433 is fixedly connected to the side of the second semicircular block 432 away from the second connecting block 431.

[0035] In this embodiment, after adjusting the height of the connecting frame 323 according to the height of the workpiece, the second bidirectional threaded rod 422 is driven to rotate by driving the third motor 421, so that the two second connecting blocks 431 on the surface of the second bidirectional threaded rod 422 are moved, so that the second semicircular block 432 further fixes the workpiece, so that the workpiece will not be offset due to vibration during the processing process.

[0036] The working process of this utility model is as follows:

[0037] When preparing to process the workpiece, the first bidirectional threaded rod 222 is driven to rotate by driving the first motor 221. At this time, the two first moving blocks 223 on the surface of the first driving component 22 are moved, so that the first semicircular block 232 can press the workpiece, and the first friction pad 233 prevents the workpiece from sliding. Due to the different heights of the workpieces, for a higher workpiece, only its bottom is fixed, which is not firmly fixed. The one-way threaded rod 322 is driven to continue rotating by driving the second motor 321, so that the connecting frame 323 can adjust the height on the surface of the one-way threaded rod 322. After adjusting the height of the connecting frame 323 according to the height of the workpiece, the second bidirectional threaded rod 422 is driven to rotate by the third motor 421, so that the two second connecting blocks 431 on the surface of the second bidirectional threaded rod 422 are moved, so that the second semicircular block 432 further fixes the workpiece, so that the workpiece will not be offset due to vibration during the processing.

[0038] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0039] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0040] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A workpiece clamping device for an automated CNC machine tool, comprising a base plate (1), characterized in that: A first fixing assembly (2) is provided on the top of the base plate (1) for fixing two sides of the periphery of the workpiece; a height adjustment assembly (3) is provided on the top of the base plate (1); and a second fixing assembly (4) is provided on the outside of the height adjustment assembly (3) for fixing the remaining two sides of the workpiece.

2. A workpiece clamping device for an automated CNC machine tool according to claim 1, characterized in that: The first fixing assembly (2) comprises a fixing base (21), a first driving component (22), and a first fixing component (23); the fixing base (21) is fixedly mounted on the top of the base plate (1); the first driving component (22) is fixedly mounted inside the fixing base (21); and the first fixing component (23) is connected to the outer surface of the first driving component (22).

3. A workpiece clamping device for an automated CNC machine tool according to claim 2, characterized in that: The first driving component (22) comprises a first motor (221), a first bidirectional threaded rod (222), and a first moving block (223); the first motor (221) is fixedly mounted on a side end of the fixed base (21); one end of the first bidirectional threaded rod (222) is fixedly connected to an output end of the first motor (221), and the other end is fixedly mounted inside the fixed base (21); the first moving block (223) is threadedly connected to an outer surface of the first bidirectional threaded rod (222).

4. A workpiece clamping device for an automated CNC machine tool according to claim 3, characterized in that: The first fixed component (23) comprises a first connecting block (231), a first semicircular block (232), and a first friction pad (233); the first connecting block (231) is fixedly connected to the top of the first moving block (223); the first semicircular block (232) is fixedly connected to the side end of the first connecting block (231); and the first friction pad (233) is fixedly connected to the side of the first semicircular block (232) away from the first connecting block (231).

5. The workpiece clamping device for an automated CNC machine tool according to claim 4, characterized in that: The height adjustment assembly (3) comprises a first fixed housing (31) and a second driving component (32), wherein the first fixed housing (31) is fixedly mounted on the top of the base plate (1), and the second driving component (32) is fixedly mounted inside the first fixed housing (31).

6. The workpiece clamping device for an automated CNC machine tool according to claim 5, characterized in that: The second driving component (32) comprises a second motor (321), a one-way threaded rod (322), and a connecting frame (323); the second motor (321) is fixedly mounted on the top of the first fixed housing (31); one end of the one-way threaded rod (322) is fixedly connected to the output end of the second motor (321), and the other end is fixedly mounted inside the first fixed housing (31); the connecting frame (323) is threadedly connected to the outer surface of the one-way threaded rod (322).

7. A workpiece clamping device for an automated CNC machine tool according to claim 6, characterized in that: The second fixing assembly (4) comprises a second fixing shell (41), a third driving component (42), and a second fixing component (43); the second fixing shell (41) is fixedly connected to the outer surface of the connecting frame (323); the third driving component (42) is fixedly installed on the side end of the second fixing shell (41); and the second fixing component (43) is connected to the outside of the third driving component (42).

8. The workpiece clamping device for an automated CNC machine tool according to claim 7, characterized in that: The third driving component (42) includes a third motor (421) and a second bidirectional threaded rod (422). The third motor (421) is fixedly mounted on the side end of the second fixed housing (41). One end of the second bidirectional threaded rod (422) is fixedly connected to the output end of the third motor (421), and the other end is fixedly mounted inside the second fixed housing (41). The second fixed component (43) includes a second connecting block (431), a second semicircular block (432), and a second friction pad (433). The second connecting block (431) is threadedly connected to the outer surface of the second bidirectional threaded rod (422). The second semicircular block (432) is fixedly connected to the side end of the second connecting block (431). The second friction pad (433) is fixedly connected to the side of the second semicircular block (432) away from the second connecting block (431).

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