Numerical control engraving and milling machine capable of conveniently and rapidly replacing clamp

Abstract

The utility model relates to the field of numerical control machine tools, in particular to a numerical control engraving and milling machine convenient for quickly replacing a clamp, which comprises a base, a support frame is arranged on the base, an engraving and milling machine moving component is arranged at the top of the support frame, and a pair of processing station components are symmetrically arranged on the front side and the rear side of the base. Each machining station assembly is provided with a pair of clamp assemblies. According to the double-station machining device, the machining station assemblies are arranged, double stations are adopted for alternate operation, when the first machining station assembly conducts machining operation, the second machining station assembly conducts feeding and discharging work, and the machining efficiency is improved; through combined use of the clamp assembly, the limiting block, the limiting groove, the connecting piece, the fixing column and the fixing cap, the clamping base can be firmly installed on the third driving block, rapid replacement is facilitated, the overall machining efficiency is improved, and the clamp assembly can adapt to workpieces of different sizes and specifications.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tools, and in particular to a CNC engraving and milling machine that facilitates quick fixture changes. Background Technology

[0002] CNC engraving and milling machines are a type of CNC machine tool that can both engrave and mill, and are a high-precision machining equipment.

[0003] However, traditional CNC engraving and milling machines typically use a single station and the machine body is fixedly installed, which requires a long waiting time for loading and unloading during the processing, seriously affecting processing efficiency. In addition, the fixtures on traditional CNC engraving and milling machines are often not replaceable, which limits their adaptability to workpieces of different sizes and specifications and cannot meet diverse processing needs. Utility Model Content

[0004] The purpose of this invention is to provide a CNC engraving and milling machine that facilitates quick fixture changes, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: it includes a base, on which a support frame is provided, and on the top of the support frame is a milling machine moving component. A pair of processing station components are symmetrically arranged on the front and rear sides of the base, and each processing station component is provided with a pair of clamping components.

[0006] As a preferred embodiment of this utility model, the engraving and milling machine moving assembly includes a mounting box disposed on the top of the support frame. A fixing sleeve is disposed on one inner wall of the mounting box, and a lead screw is inserted into the fixing sleeve. A motor is disposed on the inner wall of the mounting box away from the fixing sleeve. The transmission end of the motor is connected to one end of the lead screw. A driving block is spirally sleeved on the outside of the lead screw. A pair of guide rails are disposed inside the mounting box. The driving block is slidably disposed on the guide rails. The engraving and milling machine body is disposed at the bottom of the driving block.

[0007] As a preferred embodiment of this utility model, the processing station assembly includes a mounting groove formed on the base, a second motor is provided in the mounting groove, a rotating shaft is provided at the transmission end of the second motor, a gear is sleeved on the outside of the rotating shaft, a slide rail is provided in the mounting groove on one side of the second motor, a rack is slidably provided in the slide rail, the gear meshes with the rack, and a cover plate is provided on the mounting groove.

[0008] As a preferred embodiment of this utility model, a second driving block is provided at the top of the rack, a first telescopic cylinder is provided at the upper middle part of the second driving block, a pair of guide posts and guide sleeves are symmetrically provided on both sides of the first telescopic cylinder, a processing table is provided at the top of the telescopic rod of the first telescopic cylinder, and lifting guide posts are provided at the bottom of the processing table corresponding to the positions of the guide posts and guide sleeves.

[0009] As a preferred embodiment of the present invention, the clamping assembly includes a pair of telescopic cylinders 2 disposed on the processing table, each of the two telescopic cylinders 2 having a drive block 3 at the top of its telescopic rod, each of the two drive blocks 3 having a clamping seat on one side, and each of the two clamping seats having an anti-slip pad on one side.

[0010] As a preferred embodiment of this utility model, each of the clamping seats is symmetrically provided with a pair of limiting blocks on the side away from the anti-slip pad, and a limiting groove is provided on one side of the driving block corresponding to the position of the limiting block. A pair of connecting members are symmetrically provided on both sides of the clamping seat, and a pair of fixing posts are symmetrically provided on both sides of the driving block. The fixing posts on the same side pass through the connecting members, and a fixing cap is threaded to one end of the fixing post.

[0011] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0012] This invention features a milling machine moving assembly. A motor drives a lead screw to rotate, converting the rotational motion into linear motion of a drive block. This, in turn, causes the milling machine body to move precisely in the horizontal direction, sequentially processing the workpieces on the processing table and improving processing efficiency.

[0013] This invention features a processing station assembly. A second motor drives a rotating shaft and gears to rotate, and power is transmitted through the meshing of gears and racks to move the processing table along a slide rail. This enables the processing table to move rapidly between the engraving and milling machine's moving assembly and the loading / unloading points. Simultaneously, a dual-station alternation is employed. While the first processing station assembly is performing processing operations, the second processing station assembly performs loading / unloading operations, improving processing efficiency. Furthermore, the processing table can adjust the workpiece to a suitable processing height through the extension and retraction of the telescopic rod of the telescopic cylinder, enhancing processing flexibility and adaptability.

[0014] This utility model, by setting up a clamping assembly, uses the telescopic rods of the telescopic cylinders on both sides to drive the two clamping seats to move closer or further apart, thereby achieving stable clamping or release of the workpiece, facilitating loading and unloading by operators. At the same time, the anti-slip pad increases the friction between the clamping seat and the workpiece, effectively preventing the workpiece from slipping during processing. In addition, the combined use of the limiting block, limiting groove, connecting piece, fixing column and fixing cap allows the clamping seat to be firmly installed on the driving block three and is easy to replace quickly. This not only improves the overall processing efficiency, but also allows the clamping assembly to adapt to workpieces of different sizes and specifications. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the moving component structure of the engraving and milling machine of this utility model;

[0017] Figure 3 This is a schematic diagram of the processing station component structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the drive block two in the processing station assembly of this utility model;

[0019] Figure 5 This is a schematic diagram of the fixture assembly structure of this utility model.

[0020] Reference numerals: Base 1, Support frame 2, Milling machine moving assembly 3, Mounting box 31, Fixing sleeve 32, Lead screw 33, Motor 1 34, Drive block 1 35, Milling machine body 36, Guide rail 37, Processing station assembly 4, Mounting slot 41, Motor 2 42, Rotating shaft 43, Gear 44, Rack 45, Slide rail 46, Drive block 2 47, Telescopic cylinder 1 48, Processing table 49, Guide column and guide sleeve 410, Lifting guide column 411, Cover plate 412, Fixture assembly 5, Telescopic cylinder 2 51, Drive block 3 52, Clamping seat 53, Anti-slip pad 54, Limiting block 55, Limiting groove 56, Connector 57, Fixing column 58, Fixing cap 59. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0022] like Figures 1-5 As shown, the present invention proposes a CNC engraving and milling machine that facilitates quick fixture replacement. It includes a base 1, a support frame 2 on the base 1, an engraving and milling machine moving component 3 on the top of the support frame 2, and a pair of processing station components 4 symmetrically arranged on the front and rear sides of the base 1. Each processing station component 4 is equipped with a pair of fixture components 5.

[0023] The CNC engraving machine moving assembly 3 includes a mounting box 31 located on top of the support frame 2. The mounting box 31 provides a mounting base for other components in the CNC engraving machine moving assembly 3. A fixing sleeve 32 is provided on one inner wall of the mounting box 31, providing support for the lead screw 33 and ensuring its stability during rotation. The lead screw 33 is inserted into the fixing sleeve 32. A motor 34 is located on the inner wall of the mounting box 31 away from the fixing sleeve 32. The drive end of the motor 34 is connected to one end of the lead screw 33, providing power to the lead screw 33. The rotational power converts the rotational motion of the lead screw 33 into the linear motion of the drive block 35. The drive block 35 is spirally sleeved on the outside of the lead screw 33. The drive block 35 provides the mounting base for the engraving and milling machine body 36. A pair of guide rails 37 are provided in the mounting box 31. The drive block 35 is slidably mounted on the guide rails 37. The guide rails 37 provide a sliding track for the drive block 35 to ensure its stability during movement. The engraving and milling machine body 36 is located at the bottom of the drive block 35. The engraving and milling machine body 36 engraves or mills the workpiece using a high-speed rotating tool.

[0024] The processing station assembly 4 includes a mounting slot 41 on the base 1. The mounting slot 41 provides a mounting base for other components in the processing station assembly 4. A second motor 42 is installed in the mounting slot 41. A rotating shaft 43 is installed at the transmission end of the second motor 42. A gear 44 is sleeved on the outside of the rotating shaft 43. The second motor 42 provides rotational power to the rotating shaft 43. When the rotating shaft 43 rotates, it drives the gear 44 to rotate. A slide rail 46 is installed in the mounting slot 41 on one side of the second motor 42. A rack 45 is slidably installed in the slide rail 46. The slide rail 46 provides a sliding track for the rack 45 to ensure its stability during movement. The gear 44 meshes with the rack 45. When the gear 44 rotates, it transmits power to the rack 45 through meshing, driving the rack 45 to move along the slide rail 46. A cover plate 412 is installed on the mounting slot 41 to protect the internal components of the mounting slot 41 from external environmental interference.

[0025] A second drive block 47 is provided on the top of the rack 45. The second drive block 47 provides a mounting base for the first telescopic cylinder 48. The first telescopic cylinder 48 is located in the upper middle part of the second drive block 47. The first telescopic cylinder 48 drives the machining table 49 to rise and fall through the telescopic rod. A pair of guide posts and guide sleeves 410 are symmetrically arranged on both sides of the first telescopic cylinder 48. The machining table 49 is located on the top of the telescopic rod of the first telescopic cylinder 48. The machining table 49 provides a mounting base for the fixture assembly 5. Lifting guide posts 411 are provided at the bottom of the machining table 49 at the positions corresponding to the guide posts and guide sleeves 410. The combination of the guide posts and guide sleeves 410 and the lifting guide posts 411 can ensure the stability of the machining table 49 during the lifting process.

[0026] The clamping assembly 5 includes a pair of telescopic cylinders 51 mounted on the machining table 49. The telescopic cylinders 51 provide clamping power to the clamping seats 53. The two clamping seats 53 move closer or further apart by extending and retracting the telescopic rods of the two telescopic cylinders 51. Each of the telescopic rods of the two telescopic cylinders 51 is provided with a drive block 52. The drive block 52 provides a mounting base for clamping and transmits the power of the telescopic cylinders 51 to the clamping seats 53. Each of the two drive blocks 52 is provided with a clamping seat 53 on one side. Each of the two clamping seats 53 is provided with an anti-slip pad 54 on one side. The clamping seats 53 are used to clamp the workpiece, and the anti-slip pads 54 increase the friction between the workpiece and the anti-slip pads to prevent the workpiece from slipping during processing.

[0027] Each clamping seat 53 has a pair of limiting blocks 55 symmetrically arranged on the side away from the anti-slip pad 54. The driving block 3 52 has a limiting groove 56 on the side corresponding to the position of the limiting block 55. The limiting block 55 and the limiting groove 56 cooperate to ensure that the operator can quickly position and align the clamping seat 53 when installing it. A pair of connectors 57 are symmetrically arranged on both sides of the clamping seat 53. A pair of fixing posts 58 are symmetrically arranged on both sides of the driving block 3 52. The fixing post 58 on the same side passes through the connector 57. One end of the fixing post 58 is threaded to a fixing cap 59. The combination of connectors 57, fixing posts 58 and fixing caps 59 can ensure that the clamping seat 53 is firmly installed on the driving block 3 52.

[0028] In operation, the operator first places the workpiece into the clamping assembly 5 on the first and second processing tables 49 in sequence. Then, by controlling the extension rods of the telescopic cylinders 51 on both sides, the clamping seats 53 on both sides are driven to move closer together, thereby stabilizing the workpiece. At the same time, the anti-slip pad 54 increases the friction between the clamping seat 53 and the workpiece, preventing the workpiece from accidentally slipping off during processing. After the workpiece is loaded, the first processing station assembly 4 is started. The motor 42 drives the rotating shaft 43 to rotate, which in turn drives the gear 44 to rotate. The gear 44 transmits power to the rack 45 through meshing, driving the rack 45 along the slide rail 46. When the rack 45 moves, it drives the second drive block 47 to move, thereby moving the first processing table 49 directly below the milling machine moving assembly 3. Then, the telescopic rod of the telescopic cylinder 48 extends, driving the first processing table 49 to rise until the workpiece contacts the milling machine body 36. The milling machine body 36 is then started to process the workpiece. After the first workpiece is processed, the first motor 34 drives the lead screw 33 to rotate, converting the rotational motion of the lead screw 33 into the linear motion of the first drive block 35. This causes the first drive block 35 and the milling machine body 36 to move along the guide rail 37 directly above the second workpiece and continue processing.

[0029] After all workpieces on the first processing table 49 have been processed, the telescopic rod of the telescopic cylinder 48 can be retracted to lower the first processing table 49 to a safe height. Then, the motor 42 can be started to reset the first processing station assembly 4. At the same time, the second processing station assembly 4 processes the workpieces according to the same steps. The two stations alternate in processing, thereby reducing the waiting time for loading and unloading. When the workpieces on the second processing table 49 are being processed, the operator can control the telescopic cylinder 51 on the first processing table 49. The telescopic rod retracts to release the workpiece. After the operator removes the completed workpiece, they can replace it with another workpiece to be processed. If the size and specifications of the workpiece change, the operator can loosen and remove the fixing cap 59, then remove the clamping seat 53, and then align the limiting block 55 on one side of the new clamping seat 53 with the limiting groove 56 on the drive block 3 52 and place it. After the fixing posts 58 on both sides of the drive block 3 52 pass through the mounting holes in the middle of the connector 57, the new clamping seat 53 and the drive block 3 52 can be firmly installed by putting on and tightening the fixing cap 59.

[0030] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A CNC engraving and milling machine that facilitates quick fixture changes, comprising: The base (1) is characterized in that: a support frame (2) is provided on the base (1), a milling machine moving component (3) is provided on the top of the support frame (2), and a pair of processing station components (4) are symmetrically arranged on the front and rear sides of the base (1), and a pair of clamping components (5) are provided on each of the processing station components (4).

2. A CNC engraving and milling machine with easy and quick fixture change according to claim 1, characterized in that: The engraving and milling machine moving assembly (3) includes a mounting box (31) set on the top of the support frame (2). A fixing sleeve (32) is provided on one inner wall of the mounting box (31). A lead screw (33) is inserted in the fixing sleeve (32). A motor (34) is provided on the inner wall of the mounting box (31) away from the fixing sleeve (32). The transmission end of the motor (34) is connected to one end of the lead screw (33). A drive block (35) is spirally sleeved on the outside of the lead screw (33). A pair of guide rails (37) are provided in the mounting box (31). The drive block (35) is slidably set on the guide rails (37). The engraving and milling machine body (36) is provided at the bottom of the drive block (35).

3. A CNC engraving and milling machine with easy and quick fixture change according to claim 2, characterized in that: The processing station assembly (4) includes a mounting groove (41) opened on the base (1), a second motor (42) is provided in the mounting groove (41), a rotating shaft (43) is provided at the transmission end of the second motor (42), a gear (44) is sleeved on the outside of the rotating shaft (43), a slide rail (46) is provided in the mounting groove (41) on one side of the second motor (42), a rack (45) is slidably provided in the slide rail (46), the gear (44) meshes with the rack (45), and a cover plate (412) is provided on the mounting groove (41).

4. A CNC engraving and milling machine with easy and quick fixture change according to claim 3, characterized in that: The rack (45) is provided with a second drive block (47) at the top. The second drive block (47) is provided with a telescopic cylinder (48) at the upper middle part. A pair of guide posts and guide sleeves (410) are symmetrically arranged on both sides of the first telescopic cylinder (48). A processing table (49) is provided at the top of the telescopic rod of the first telescopic cylinder (48). Lifting guide posts (411) are provided at the bottom of the processing table (49) corresponding to the positions of the guide posts and guide sleeves (410).

5. A CNC engraving and milling machine with easy and quick fixture change according to claim 4, characterized in that: The clamping assembly (5) includes a pair of telescopic cylinders (51) mounted on the processing table (49). Each of the two telescopic cylinders (51) has a drive block (52) on the top of its telescopic rod. Each of the two drive blocks (52) has a clamping seat (53) on one side. Each of the two clamping seats (53) has an anti-slip pad (54) on one side.

6. A CNC engraving and milling machine with easy and quick fixture change according to claim 5, characterized in that: Each clamping seat (53) has a pair of limiting blocks (55) symmetrically arranged on the side away from the anti-slip pad (54). Each drive block three (52) has a limiting groove (56) on the side corresponding to the limiting block (55). A pair of connectors (57) are symmetrically arranged on both sides of the clamping seat (53). A pair of fixing posts (58) are symmetrically arranged on both sides of the drive block three (52). The fixing posts (58) on the same side pass through the connectors (57). A fixing cap (59) is threaded to one end of the fixing post (58).

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