Numerical control milling machine chuck capable of quickly clamping workpiece

Abstract

The utility model discloses a numerical control milling machine chuck capable of quickly clamping a workpiece, and relates to the technical field of numerical control milling machines. The numerical control milling machine chuck capable of rapidly clamping the workpiece comprises a base and a placing disc arranged above the base, and further comprises a plurality of clamping blocks, the outer walls of the multiple clamping blocks are slidably connected with the inner side face of the placing disc, and a plurality of limiting rods are slidably arranged on the inner side faces of the multiple clamping blocks correspondingly; the device has the technical effects that a nut in the adjusting mechanism is matched with a threaded rod to drive the lifting frame to move, the heights of multiple adjusting plates can be rapidly and synchronously adjusted, the clamping preparation time is shortened, and the production efficiency is improved; a plurality of limiting rods precisely limit movement of the clamping blocks, a connecting rail guarantees synchronous movement of the adjusting frame and the adjusting plate, it is guaranteed that the workpiece clamping position is accurate, and the clamping precision is improved; and meanwhile, the clamping height can be flexibly adjusted, the clamping requirements of workpieces of different heights, sizes and shapes are met, and universality and adaptability are high.

Description

Technical Field

[0001] This utility model relates to the field of CNC milling machine technology, specifically a CNC milling machine chuck that can quickly clamp workpieces. Background Technology

[0002] CNC milling machines are developed from general milling machines. They use a computer control system (CNC system) to control the movement and machining process of the machine tool. The CNC system converts machining instructions (such as the shape, size, and machining process of the part) into electrical signals, drives servo motors, and then controls the movement of the milling machine's worktable, spindle, and other components to achieve milling of the workpiece.

[0003] In the CNC milling process, the chuck is a key component for clamping workpieces, and its performance directly affects the workpiece's machining accuracy, production efficiency, and machining cost.

[0004] Existing CNC milling machine chucks struggle to flexibly and precisely adjust the clamping height according to different workpiece dimensions. Their relatively fixed structural design often requires operators to spend considerable time and effort manually adjusting chucks for workpieces of varying heights and thicknesses, thus reducing production efficiency. A CNC milling machine chuck capable of quickly clamping workpieces is needed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a CNC milling machine chuck that can quickly clamp workpieces, solving the problem that when dealing with workpieces of different heights and thicknesses, operators often need to spend a lot of time and effort on manual adjustments, thus reducing production efficiency.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: it includes a base and a placement plate disposed above the base, and also includes multiple clamping blocks. The outer walls of the multiple clamping blocks are slidably connected to the inner side of the placement plate. Multiple limiting rods are slidably disposed on the inner side of the multiple clamping blocks, and the multiple limiting rods are fixedly connected to the inner side of the placement plate. A squeezing mechanism and an adjusting mechanism are disposed above the placement plate.

[0009] The adjustment mechanism includes an adjustment section and a control section;

[0010] The adjustment unit includes multiple connecting frames and multiple adjustment plates, and the control unit includes a lifting frame and multiple adjustment brackets;

[0011] The sides of the multiple connecting frames near the multiple clamping blocks are respectively fixedly connected to the outer walls of the multiple clamping blocks. The inner sides of the multiple connecting frames are respectively slidably connected to the outer walls of the multiple adjusting plates. The top surfaces of the multiple adjusting frames slide through the bottom surfaces of the multiple connecting frames and extend to the inner sides of the multiple connecting frames. The top surfaces of the multiple adjusting frames are respectively fixedly connected to the bottom surfaces of the multiple adjusting plates. A fixing block is fixedly provided on the top surface of the base, and the top surface of the fixing block is fixedly connected to the bottom surface of the placement tray.

[0012] Preferably, the extrusion mechanism includes multiple springs and multiple dampers, and multiple fixing frames are fixedly provided on the outer wall of the base. The inner sides of the multiple fixing frames are respectively fixedly connected to the outer walls of the multiple springs and multiple dampers, and the sides of the multiple springs and multiple dampers near the multiple clamping blocks are respectively fixedly connected to the outer walls of the multiple clamping blocks.

[0013] Preferably, the outer wall of the fixed block is slidably connected to the inner side of the lifting frame, and multiple connecting plates are fixedly provided on the outer walls of the multiple lifting frames respectively. The top surfaces of the multiple connecting plates are slidably connected to the bottom surfaces of the multiple adjusting frames respectively. Multiple connecting rails are fixedly provided on the top surfaces of the multiple connecting plates respectively, and the outer walls of the multiple connecting rails are slidably connected to the outer walls of the multiple adjusting frames respectively.

[0014] Preferably, the outer walls of the plurality of adjustment plates are respectively fixedly provided with a plurality of guide rails, and the outer walls of the plurality of guide rails are respectively slidably connected to the inner sides of the plurality of connecting frames.

[0015] Preferably, a threaded rod is fixedly provided on the bottom surface of the placement tray, the bottom surface of the threaded rod extends through the top surface of the lifting frame to the bottom of the lifting frame, and a nut is rotatably provided on the bottom surface of the lifting frame through a bearing seat, the inner side of the nut being threadedly connected to the outer wall of the threaded rod.

[0016] Preferably, a plurality of connecting blocks are fixedly disposed on the outer walls of the plurality of clamping blocks, and a fixing frame is fixedly disposed on the top surface of the placement tray. The inner sides of the plurality of fixing frames are slidably connected to the outer walls of the plurality of connecting blocks. A plurality of through slots are opened on the outer walls of the plurality of fixing frames, and a plurality of extrusion screws are disposed on the inner walls of the plurality of through slots. The side of the plurality of extrusion screws near the plurality of connecting blocks is threaded through the top surface of the plurality of connecting blocks and extends to the inner side of the plurality of connecting blocks. A plurality of extrusion rings are fixedly sleeved on the outer walls of the plurality of extrusion screws. The bottom surfaces of the plurality of extrusion rings are in contact with the top surfaces of the plurality of fixing frames. The plurality of springs are initially in an extended state.

[0017] (III) Beneficial Effects

[0018] This invention provides a CNC milling machine chuck capable of quickly clamping workpieces. It offers the following advantages:

[0019] (I) This CNC milling machine chuck, which can quickly clamp workpieces, uses the cooperation of the nut and threaded rod in the adjustment mechanism to drive the lifting frame to move, which can quickly and synchronously adjust the height of multiple adjustment plates, shorten the clamping preparation time, and improve production efficiency; multiple limit rods precisely limit the movement of the clamping block, and the connecting rail ensures that the adjustment frame and the adjustment plate move synchronously, ensuring the accurate clamping position of the workpiece and improving clamping accuracy; at the same time, it can flexibly adjust the clamping height to adapt to the clamping needs of workpieces of different heights, sizes and shapes, and has strong versatility and adaptability, which greatly expands the application range of the chuck.

[0020] (II) The CNC milling machine chuck that can quickly clamp workpieces has a spring and damper in the extrusion mechanism that can initially stabilize and fix the workpiece around its perimeter after it is placed, laying a solid foundation for accurate clamping and stable machining. Tightening the extrusion screw further fixes the clamping block, forming a double fixation guarantee, effectively preventing the workpiece from loosening or shifting during machining. Even when facing high-speed cutting and complex machining, it can ensure clamping stability, enhance machining safety, and prevent workpiece damage, tool wear, and safety accidents. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the adjustment mechanism of this utility model;

[0023] Figure 3 This is a schematic diagram of the internal structure of the adjustment mechanism of this utility model;

[0024] Figure 4 This is a schematic diagram of the extrusion mechanism of this utility model;

[0025] Figure 5 This utility model Figure 4 A magnified structural diagram of region A in the middle.

[0026] In the diagram: 1. Base; 2. Placement plate; 3. Extrusion mechanism; 31. Spring; 32. Damper; 33. Fixing frame; 34. Fixing frame; 35. Extrusion screw; 36. Extrusion ring; 37. Connecting block; 4. Adjustment mechanism; 41. Connecting frame; 42. Guide rail; 43. Adjusting plate; 44. Nut; 45. Threaded rod; 46. Lifting frame; 47. Adjusting frame; 48. Connecting rail; 49. Connecting plate; 410. Fixing block; 5. Clamping block; 6. Limiting rod. Detailed Implementation

[0027] 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.

[0028] Please see Figure 1-5 The present invention provides a technical solution: including a base 1 and a placement plate 2 disposed above the base 1, and also including multiple clamping blocks 5, the outer walls of the multiple clamping blocks 5 are slidably connected to the inner side of the placement plate 2, multiple limiting rods 6 are slidably disposed on the inner side of the multiple clamping blocks 5, the multiple limiting rods 6 are fixedly connected to the inner side of the placement plate 2, and a squeezing mechanism 3 and an adjusting mechanism 4 are disposed above the placement plate 2.

[0029] The regulating mechanism 4 includes an regulating section and a control section;

[0030] The adjustment unit includes multiple connecting frames 41 and multiple adjustment plates 43, and the control unit includes a lifting frame 46 and multiple adjustment brackets 47;

[0031] Multiple connecting frames 41 are fixedly connected to the outer walls of multiple clamping blocks 5 on one side, respectively. The inner sides of multiple connecting frames 41 are slidably connected to the outer walls of multiple adjusting plates 43. The top surfaces of multiple adjusting frames 47 slide through the bottom surfaces of multiple connecting frames 41 and extend to the inner sides of multiple connecting frames 41. The top surfaces of multiple adjusting frames 47 are fixedly connected to the bottom surfaces of multiple adjusting plates 43. A fixing block 410 is fixedly installed on the top surface of the base 1. The top surface of the fixing block 410 is fixedly connected to the bottom surface of the placement tray 2. The outer wall of the fixing block 410 is slidably connected to the inner side of the lifting frame 46. Multiple connecting plates 49 are fixedly installed on the outer walls of multiple lifting frames 46. The top surface of each connecting plate 49 is slidably connected to the bottom surface of each adjusting frame 47. Each connecting plate 49 has a fixed connecting rail 48 on its top surface. The outer walls of the connecting rails 48 are slidably connected to the outer walls of the adjusting frames 47. Each adjusting plate 43 has a fixed guide rail 42 on its outer wall. The outer walls of the guide rails 42 are slidably connected to the inner sides of each connecting frame 41. A threaded rod 45 is fixedly installed on the bottom surface of the placement plate 2. The bottom surface of the threaded rod 45 extends through the top surface of the lifting frame 46 to the bottom of the lifting frame 46. A nut 44 is rotatably installed on the bottom surface of the lifting frame 46 through a bearing seat. The inner side of the nut 44 is threadedly connected to the outer wall of the threaded rod 45.

[0032] The extrusion mechanism 3 includes multiple springs 31 and multiple dampers 32. Multiple fixing brackets 33 are fixedly installed on the outer wall of the base 1. The inner sides of the multiple fixing brackets 33 are fixedly connected to the outer walls of the multiple springs 31 and multiple dampers 32 respectively. The sides of the multiple springs 31 and multiple dampers 32 near the multiple clamping blocks 5 are fixedly connected to the outer walls of the multiple clamping blocks 5 respectively. Multiple connecting blocks 37 are fixedly installed on the outer walls of the multiple clamping blocks 5 respectively. A fixing frame 34 is fixedly installed on the top surface of the placement tray 2. The inner sides of the multiple fixing frames 34 are slidably connected to the outer walls of the multiple connecting blocks 37 respectively. Multiple through slots are opened on the outer walls of the multiple through slots. Multiple extrusion screws 35 are respectively installed on the inner walls of the multiple through slots. The sides of the multiple extrusion screws 35 near the multiple connecting blocks 37 are threaded through the top surfaces of the multiple connecting blocks 37 and extend to the inner sides of the multiple connecting blocks 37 respectively. Multiple extrusion rings 36 are fixedly sleeved on the outer walls of the multiple extrusion screws 35 respectively. The bottom surfaces of the multiple extrusion rings 36 are in contact with the top surfaces of the multiple fixing frames 34 respectively. The initial state of the multiple springs 31 is the extended state.

[0033] In use, the base 1 is fixed inside the CNC machine tool. When processing the workpiece, the height of multiple adjustment plates 43 is adjusted according to the height of the workpiece. During adjustment, the nut 44 is manually rotated. When the nut 44 rotates, the lifting frame 46 can move up and down through the threaded rod 45. When the lifting frame 46 moves up and down, the height of multiple adjustment plates 43 can be adjusted through multiple adjustment brackets 47. By setting multiple connecting rails 48, the multiple adjustment brackets 47 can be prevented from disengaging from the connecting plate 49. The adjustment brackets 47 can also move synchronously with the adjustment plates 43. Multiple adjustment plates 43 can be adjusted synchronously at any position.

[0034] After the height of the multiple adjusting plates 43 is adjusted, the workpiece is placed on the placement plate 2. At this time, the adjusting plates 43 can fix the workpiece around the perimeter through the multiple springs 31 and multiple dampers 32. After clamping is completed, the multiple extrusion screws 35 are manually tightened. After the multiple extrusion screws 35 are tightened, the multiple clamping blocks 5 can be fixed. After the clamping blocks 5 are fixed, the workpiece can be stably clamped.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] 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 CNC milling machine chuck capable of quickly clamping workpieces, comprising a base (1) and a placement plate (2) disposed above the base (1), characterized in that: It also includes multiple clamping blocks (5), the outer walls of the multiple clamping blocks (5) are slidably connected to the inner side of the placement plate (2), multiple limiting rods (6) are slidably arranged on the inner side of the multiple clamping blocks (5), and the multiple limiting rods (6) are fixedly connected to the inner side of the placement plate (2). A squeezing mechanism (3) and an adjusting mechanism (4) are arranged above the placement plate (2). The adjustment mechanism (4) includes an adjustment section and a control section; The adjustment unit includes multiple connecting frames (41) and multiple adjustment plates (43), and the control unit includes a lifting frame (46) and multiple adjustment brackets (47); The sides of the multiple connecting frames (41) near the multiple clamping blocks (5) are respectively fixedly connected to the outer walls of the multiple clamping blocks (5). The inner sides of the multiple connecting frames (41) are respectively slidably connected to the outer walls of the multiple adjusting plates (43). The top surfaces of the multiple adjusting frames (47) slide through the bottom surfaces of the multiple connecting frames (41) and extend to the inner sides of the multiple connecting frames (41). The top surfaces of the multiple adjusting frames (47) are respectively fixedly connected to the bottom surfaces of the multiple adjusting plates (43). A fixing block (410) is fixedly provided on the top surface of the base (1). The top surface of the fixing block (410) is fixedly connected to the bottom surface of the placement tray (2).

2. A CNC milling machine chuck capable of quickly clamping workpieces according to claim 1, characterized in that: The extrusion mechanism (3) includes multiple springs (31) and multiple dampers (32). Multiple fixing brackets (33) are fixedly provided on the outer wall of the base (1). The inner sides of the multiple fixing brackets (33) are respectively fixedly connected to the outer walls of the multiple springs (31) and multiple dampers (32). The sides of the multiple springs (31) and multiple dampers (32) near the multiple clamping blocks (5) are respectively fixedly connected to the outer walls of the multiple clamping blocks (5).

3. A CNC milling machine chuck capable of quickly clamping workpieces according to claim 1, characterized in that: The outer wall of the fixed block (410) is slidably connected to the inner side of the lifting frame (46). Multiple connecting plates (49) are fixedly provided on the outer walls of the multiple lifting frames (46). The top surfaces of the multiple connecting plates (49) are slidably connected to the bottom surfaces of the multiple adjusting frames (47). Multiple connecting rails (48) are fixedly provided on the top surfaces of the multiple connecting plates (49). The outer walls of the multiple connecting rails (48) are slidably connected to the outer walls of the multiple adjusting frames (47).

4. A CNC milling machine chuck capable of quickly clamping workpieces according to claim 1, characterized in that: Multiple guide rails (43) are fixedly provided on the outer walls of the multiple adjustment plates (43), and the outer walls of the multiple guide rails (43) are slidably connected to the inner sides of the multiple connecting frames (41).

5. A CNC milling machine chuck capable of quickly clamping workpieces according to claim 3, characterized in that: A threaded rod (45) is fixedly provided on the bottom surface of the placement tray (2). The bottom surface of the threaded rod (45) extends through the top surface of the lifting frame (46) to the bottom of the lifting frame (46). A nut (44) is rotatably provided on the bottom surface of the lifting frame (46) through a bearing seat. The inner side of the nut (44) is threadedly connected to the outer wall of the threaded rod (45).

6. A CNC milling machine chuck capable of quickly clamping workpieces according to claim 2, characterized in that: Multiple connecting blocks (37) are fixedly provided on the outer walls of the multiple clamping blocks (5), and a fixed frame (34) is fixedly provided on the top surface of the placement plate (2). The inner sides of the multiple fixed frames (34) are slidably connected to the outer walls of the multiple connecting blocks (37). Multiple through slots are opened on the outer walls of the multiple fixed frames (34), and multiple extrusion screws (35) are provided on the inner walls of the multiple through slots. The side of the multiple extrusion screws (35) near the multiple connecting blocks (37) is threaded through the top surface of the multiple connecting blocks (37) and extends to the inner side of the multiple connecting blocks (37). Multiple extrusion rings (36) are fixedly sleeved on the outer walls of the multiple extrusion screws (35). The bottom surfaces of the multiple extrusion rings (36) are in contact with the top surfaces of the multiple fixed frames (34). The initial state of the multiple springs (31) is the extended state.

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