A clamping device for a numerical control milling machine

Abstract

The utility model discloses a clamping device for numerical control milling machine relates to lead -acid battery production equipment technical field, the utility model discloses a rack is fixedly connected with workstation, still includes milling device, clamping subassembly and drive subassembly, the milling device sets up on the rack for milling raw material, clamping subassembly includes two push board, and the push board movable intercalation has a plurality of guide rod, and the both ends of push board articulate to have drive rod, the guide rod fixedly connected with horizontal clamping plate, the lateral wall both sides of horizontal clamping plate are equipped with slide hole, and are connected with sliding block through slide hole sliding, the one side of sliding block is articulated with drive rod, and the other side fixedly connected with longitudinal clamping plate, the utility model discloses through clamping subassembly, has solved the problem that the existing clamping device is difficult to fix workpiece in all directions, leads to the problem of insufficient stability.

Description

Technical Field

[0001] This utility model relates to the technical field of lead-acid battery production equipment, specifically a clamping device for CNC milling machines. Background Technology

[0002] A CNC milling machine is an automated machine tool that integrates computer numerical control technology. Its core is to receive preset machining programs through a CNC system, which precisely drives the movement of each axis of the machine tool and the rotation of the cutting tool to achieve high-precision machining of the workpiece. With its significant advantages of high efficiency, high precision, and high reliability, this equipment has been widely used in many core industrial fields such as machinery manufacturing, aerospace, automobile manufacturing, mold processing, and electronics manufacturing. In the machining process of a CNC milling machine, the stable fixation of the workpiece is a key prerequisite for ensuring machining accuracy. Therefore, a special clamping device has become an indispensable supporting component.

[0003] Patent publication number CN223251106U discloses a workpiece clamping device for CNC milling machines. This device drives two sets of threaded movable plates to move towards each other by rotating a bidirectional lead screw. Through the hinge action between the movable plates and the vertical rod and connecting rod, and the sliding cooperation between the vertical rod and the guide member, the rollers on the bracket can be driven to roll downward on one side of the clamping block. The sliding cooperation between the guide block and the guide rod can push the clamping block, thereby realizing the rapid clamping of the workpiece. It is simple to operate and highly practical.

[0004] However, the above-mentioned device has structural limitations: its two sets of clamping blocks can only clamp the two sides of the workpiece in one direction, and cannot achieve all-round fixation of the workpiece around its perimeter, resulting in insufficient clamping stability. In high-precision machining scenarios, problems such as workpiece displacement and shaking are likely to occur, which in turn affect the machining accuracy. The clamping effect needs to be further optimized. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a clamping device for CNC milling machines, which solves the problem that existing clamping devices are unable to fix workpieces in all directions, resulting in insufficient stability.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model employs the following technical solution:

[0009] A clamping device for a CNC milling machine includes a frame with a worktable fixedly connected to it, and further includes a milling device, a clamping assembly, and a driving assembly. The milling device is mounted on the frame and is used for milling raw materials. The clamping assembly includes two push plates with several guide rods movably inserted through them, and driving rods are hinged to both ends of the push plates. A transverse clamping plate is fixedly connected to the guide rods. Sliding holes are provided on both sides of the transverse clamping plate, and a slider is slidably connected through the sliding holes. One side of the slider is hinged to the driving rod, and a longitudinal clamping plate is fixedly connected to the other side. The driving assembly is mounted on the frame and is used to drive the two push plates to move in opposite or opposite directions.

[0010] Preferably, the push plate is slidably connected to the worktable, and a compression spring is provided between the transverse clamp and the push plate.

[0011] Preferably, a flange is fixedly connected to one end of the guide rod that passes through the push plate.

[0012] Preferably, the drive assembly includes a drive motor fixedly connected to the frame, a bidirectional screw rotatably connected to the frame, and two drive seats slidably connected to the frame. The output end of the drive motor is fixedly connected to the screw, the two ends of the bidirectional screw are threadedly connected to the drive seats, and the drive seats are fixedly connected to the push plate.

[0013] Preferably, the milling device includes a translation frame, a lifting seat, a mounting plate, and a CNC milling cutter. The translation frame is fixedly connected to the machine frame, the lifting seat is slidably connected to the translation frame, the mounting plate is slidably connected to the lifting seat, and the CNC milling cutter is fixedly connected to the mounting plate.

[0014] Preferably, the translation frame and the lifting seat each include a base, an adjustment motor, a lead screw, and a threaded sleeve. The adjustment motor is fixedly connected to the base, the lead screw is rotatably connected to the base, the threaded sleeve is threadedly connected to the lead screw, the output end of the adjustment motor is fixedly connected to the lead screw, the lifting seat is fixedly connected to the threaded sleeve on the translation frame, and the mounting plate is fixedly connected to the threaded sleeve on the lifting seat.

[0015] (III) Beneficial Effects

[0016] This utility model provides a clamping device for CNC milling machines. It has the following beneficial effects:

[0017] (i) The clamping device achieves all-round workpiece fixation through the horizontal and vertical linkage structure of the clamping components: the two push plates drive the guide rod to drive the horizontal clamping plate to clamp the workpiece horizontally, and simultaneously the drive rod and slider are linked to the vertical clamping plate to lock the workpiece vertically. The flange at the end of the guide rod ensures transmission stability, and the compression spring is adapted to workpieces of different sizes, solving the problems of incomplete fixation and insufficient stability of the existing device.

[0018] (ii) The clamping device provides precise and stable power output through the drive component: the drive motor drives the bidirectional screw to rotate, drives the two drive seats to move synchronously towards each other along the frame, and then drives the push plate to smoothly link with the clamping component. The clamping force and displacement are precisely controlled through the thread transmission to ensure that the horizontal and vertical clamping actions are synchronized and coordinated, thereby improving the workpiece positioning accuracy and processing reliability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the milling device of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the clamping assembly and the driving assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the clamping assembly of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the drive component of this utility model.

[0024] Marked in the image:

[0025] 1. Frame; 2. Milling device; 3. Clamping assembly; 4. Drive assembly; 11. Worktable; 21. Translation frame; 22. Lifting seat; 23. Mounting plate; 24. CNC milling cutter; 25. Base; 26. Positioning motor; 27. Lead screw; 28. Threaded sleeve; 31. Push plate; 32. Guide rod; 33. Drive rod; 34. Transverse clamping plate; 35. Sliding hole; 36. Slider; 37. Longitudinal clamping plate; 38. Compression spring; 39. Flange; 41. Drive motor; 42. Bidirectional screw; 43. Drive seat. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-5 This utility model provides a technical solution:

[0028] Example 1:

[0029] Please see Figures 1-5A clamping device for a CNC milling machine includes a frame 1, a worktable 11 fixedly connected to the frame 1, a clamping assembly 3, and a driving assembly 4. The clamping assembly 3 includes two push plates 31 slidably connected to the worktable 11. Several guide rods 32 are movably inserted through the push plates 31, and driving rods 33 are hinged to both ends of the push plates 31. A transverse clamping plate 34 is fixedly connected to the guide rods 32. Sliding holes 35 are opened on both sides of the side wall of the transverse clamping plate 34, and a slider 36 is slidably connected through the sliding holes 35. One side of the slider 36 is hinged to the driving rod 33, and a longitudinal clamping plate 37 is fixedly connected to the other side. The driving assembly 4 is mounted on the frame 1 and is used to drive the two push plates 31 to move in opposite or opposite directions. A compression spring 38 is provided between the transverse clamping plate 34 and the push plates 31. In use, the workpiece is first placed on the worktable 11, and the driving assembly 4 is started. The moving component 4 causes the two push plates 31 to move towards each other. The two push plates 31, through the guide rod 32, drive the two transverse clamping plates 34 to move towards each other until the two transverse sides of the workpiece come into contact with the two transverse clamping plates 34 respectively, forming a clamping and fixing. The two push plates 31 continue to move towards each other, and the transverse clamping plates 34 are in contact with the side wall of the workpiece and remain stationary, thereby reducing the distance between the push plates 31 and the transverse clamping plates 34. This causes the drive rods 33 between the push plates 31 and the transverse clamping plates 34 to swing, and the compression springs 38 on both sides of the worktable 11 are compressed. The two drive rods 33 on the push plates 31 drive the two longitudinal clamping plates 37 to move towards the workpiece through the slider 36, thereby realizing the clamping effect of transverse and longitudinal linkage. The clamping component 3 realizes the all-round fixation of the workpiece in the horizontal and vertical directions through the composite clamping structure, which solves the problem of insufficient stability of the existing device.

[0030] Please see Figures 3-4 The guide rod 32 has a flange 39 fixedly connected to one end of the push plate 31. In use, the workpiece is placed on the worktable 11, and the drive assembly 4 is activated to drive the two push plates 31 to move towards each other. The push plate 31 drives the transverse clamping plate 34 to move closer to the workpiece through the guide rod 32. The flange 39 at the end of the guide rod 32 can prevent the guide rod 32 from disengaging from the push plate 31, ensuring the stability of the transverse clamping transmission. After the transverse clamping plate 34 contacts the workpiece, the push plate 31 continues to move, causing the compression spring 38 to compress. The drive rod 33 drives the longitudinal clamping plate 37 to clamp the workpiece longitudinally through the slider 36. The transverse and longitudinal linkage achieves all-round fixation, solving the problem of insufficient stability of the existing device. The flange 39 further improves the reliability of the structural linkage during the clamping process, ensuring accurate positioning of the workpiece during processing.

[0031] Please see Figures 3-5The drive assembly 4 includes a drive motor 41 fixedly connected to the frame 1, a bidirectional screw 42 rotatably connected to the frame 1, and two drive seats 43 slidably connected to the frame 1. The output end of the drive motor 41 is fixedly connected to the screw, and both ends of the bidirectional screw 42 are threadedly connected to the drive seats 43. The drive seats 43 are fixedly connected to the push plate 31. In use, the workpiece is placed on the worktable 11, and the drive motor 41 of the drive assembly 4 is started. The drive motor 41 drives the bidirectional screw 42 to rotate. Since both ends of the bidirectional screw 42 are threadedly connected to the two drive seats 43 respectively, and the drive seats 43 are slidably connected to the frame 1, the two drive seats 43 move in a direction that approaches each other as the bidirectional screw 42 rotates, thereby driving the push plate 31 fixed thereto to move closer together. The push plate 31 first drives the transverse clamping plate 34 through the guide rod 32 to complete the transverse clamping of the workpiece. When it continues to move, it drives the longitudinal clamping plate 37 through the drive rod 33 and the slider 36 to achieve longitudinal clamping. Finally, the workpiece is fixed in all directions through the horizontal and vertical linkage. The drive assembly 4 precisely controls the synchronous movement of the two push plates 31 through the transmission method of the bidirectional screw 42 driven by the motor, ensuring uniform and stable clamping force, effectively solving the problem of poor workpiece fixing stability caused by insufficient drive method in the existing device, and improving the processing accuracy.

[0032] Example 2:

[0033] Please see Figures 1-2 A milling device 2 is mounted on the frame 1. The milling device 2 includes a translation frame 21, a lifting seat 22, a mounting plate 23, and a CNC milling cutter 24. The translation frame 21 is fixedly connected to the frame 1, the lifting seat 22 is slidably connected to the translation frame 21, the mounting plate 23 is slidably connected to the lifting seat 22, and the CNC milling cutter 24 is fixedly connected to the mounting plate 23. In use, after the clamping device has fixed the workpiece, the milling device 2 starts working. The translation frame 21 provides basic support for the overall movement, and the lifting seat 22 slides along the translation frame 21. The horizontal position adjustment is achieved by the sliding of the mounting plate 23 along the lifting seat 22 to complete the vertical position adjustment, thereby driving the CNC milling cutter 24 to move precisely to the workpiece to be processed position; through multi-directional adjustment of translation and lifting, the CNC milling cutter 24 can perform milling processing on the workpiece according to the preset program; this structure realizes the flexible movement of the CNC milling cutter 24 through multi-dimensional sliding adjustment, and with the stable fixation of the clamping device, it ensures that the relative position of the tool and the workpiece is accurately controllable during the processing, ensuring the accuracy and efficiency of milling processing.

[0034] Please see Figures 1-2The translation frame 21 and the lifting seat 22 both include a base 25, an adjusting motor 26, a lead screw 27, and a threaded sleeve 28. The adjusting motor 26 is fixedly connected to the base 25, the lead screw 27 is rotatably connected to the base 25, the threaded sleeve 28 is threadedly connected to the lead screw 27, the output end of the adjusting motor 26 is fixedly connected to the lead screw 27, the lifting seat 22 is fixedly connected to the threaded sleeve 28 on the translation frame 21, and the mounting plate 23 is fixedly connected to the threaded sleeve 28 on the lifting seat 22. In use, after the clamping device completes the workpiece fixation, the milling device 2 starts working; both the translation frame 21 and the lifting seat 22 are connected to the base 25. The drive structure, consisting of a positioning motor 26, a lead screw 27, and a threaded sleeve 28, enables precise adjustment: The positioning motor 26 of the translation frame 21 starts, driving the lead screw 27 on the base 25 to rotate, causing the threaded sleeve 28 to slide along the lead screw 27. This, in turn, drives the lifting seat 22, which is fixed to it, to adjust its horizontal position along the translation frame 21. Simultaneously, the positioning motor 26 of the lifting seat 22 drives the lead screw 27 on its own base 25 to rotate, causing its threaded sleeve 28 to drive the mounting plate 23 to slide along the lifting seat 22, achieving vertical position adjustment. Ultimately, this drives the CNC milling cutter 24 to precisely move to the workpiece's machining position. Through this two-stage motor-driven precision transmission of the lead screw 27, the CNC milling cutter 24 can move flexibly in both horizontal and vertical directions, performing milling operations on the workpiece according to a preset program. This structure, with its multi-dimensional precise adjustment and the high stability of the lead screw 27 transmission, combined with the stable fixation of the clamping device, ensures precise and controllable relative positions of the tool and workpiece during machining, effectively guaranteeing the accuracy and efficiency of the milling process.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only 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 clamping device for a numerical control milling machine, comprising a frame (1), the frame (1) being fixedly connected with a workbench (11), characterized in that, Also includes: A milling device (2) is mounted on a frame (1) and is used to mill raw materials; The clamping assembly (3) includes two push plates (31), several guide rods (32) are movably inserted through the push plates (31), and drive rods (33) are hinged to both ends of the push plates (31). A transverse clamping plate (34) is fixedly connected to the guide rods (32). Sliding holes (35) are opened on both sides of the side wall of the transverse clamping plate (34), and a slider (36) is slidably connected through the sliding holes (35). One side of the slider (36) is hinged to the drive rod (33), and a longitudinal clamping plate (37) is fixedly connected to the other side. A drive assembly (4) is mounted on a frame (1) and is used to drive two push plates (31) to move in opposite or opposite directions.

2. The chucking device for a numerical control milling machine according to claim 1, wherein The push plate (31) is slidably connected to the worktable (11), and a compression spring (38) is provided between the transverse clamp (34) and the push plate (31).

3. A chucking device for a numerical control milling machine according to claim 2, characterized in that, The guide rod (32) has a flange (39) fixedly connected to one end of the push plate (31).

4. The chucking device for a numerical control milling machine according to claim 3, wherein The drive assembly (4) includes a drive motor (41) fixedly connected to the frame (1), a bidirectional screw (42) rotatably connected to the frame (1), and two drive seats (43) slidably connected to the frame (1). The output end of the drive motor (41) is fixedly connected to the screw, and the two ends of the bidirectional screw (42) are threadedly connected to the drive seats (43). The drive seats (43) are fixedly connected to the push plate (31).

5. The chucking device for a numerical control milling machine according to claim 1, wherein The milling device (2) includes a translation frame (21), a lifting seat (22), a mounting plate (23), and a CNC milling cutter (24). The translation frame (21) is fixedly connected to the frame (1), the lifting seat (22) is slidably connected to the translation frame (21), the mounting plate (23) is slidably connected to the lifting seat (22), and the CNC milling cutter (24) is fixedly connected to the mounting plate (23).

6. A chucking device for a numerical control milling machine according to claim 5, characterized in that, The translation frame (21) and the lifting seat (22) both include a base (25), an adjustment motor (26), a lead screw (27), and a threaded sleeve (28). The adjustment motor (26) is fixedly connected to the base (25), the lead screw (27) is rotatably connected to the base (25), the threaded sleeve (28) is threadedly connected to the lead screw (27), the output end of the adjustment motor (26) is fixedly connected to the lead screw (27), the lifting seat (22) is fixedly connected to the threaded sleeve (28) on the translation frame (21), and the mounting plate (23) is fixedly connected to the threaded sleeve (28) on the lifting seat (22).

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