A fixture and a milling machine

Abstract

This application provides a fixture and a milling machine, relating to the field of milling machine technology, including a limiting component. The support plate has several T-slots with open ends. Limiting components are slidably disposed on the T-slots. Each limiting component includes a first sliding block, a second sliding block, and a limiting bolt. The first sliding block is slidably disposed inside the T-slot and on the upper surface of the T-slot. The limiting bolt passes through and is screwed through both the second and first sliding blocks, and abuts against the bottom wall of the T-slot. By adopting a combined structure of "first sliding block inside the T-slot + second sliding block on the T-slot + through-bolt," the limiting bolt directly abuts against the bottom wall of the T-slot, resulting in a more secure lock, more even force distribution, and simpler adjustment. Furthermore, because the T-slots are open at both ends, the limiting component can slide along the entire stroke of the slot, adapting to a wider range of workpiece sizes.

Description

Technical Field

[0001] This application relates to the field of machinery, and more specifically, to a fixture and a milling machine. Background Technology

[0002] Fixtures are core auxiliary components in milling machine machining, used to achieve precise positioning and stable clamping of workpieces, directly affecting machining accuracy, production efficiency, and operational safety. In fields such as machinery manufacturing, automotive parts, and aerospace, milling machine machining often involves workpieces of various sizes and shapes, placing high demands on the versatility, adjustability, and fixation reliability of fixtures.

[0003] For example, an adjustable fixture for CNC milling machines disclosed in Chinese Publication No. CN216462051U includes a base, a first clamping block and a fixed seat that are fixedly installed, and a second clamping block that is movably set. Limiting plates that can move along the length direction of the base are provided on both sides of the second clamping block, which are pressed and cooperate with the protrusions of the first clamping block to achieve limit protection. A screw is installed through the fixed seat, one end of which is rotatably connected to the second clamping block, and the other end is driven to adjust by rotating an auxiliary rod to realize the clamping and loosening of the workpiece. However, the adjustment of the limiting plate depends on the slide rail in the length direction of the base, and the adjustment range is limited, so it cannot be used for machining large-sized workpieces. Utility Model Content

[0004] To overcome the shortcomings of the existing system, this application provides a fixture and milling machine that can solve the problem that the adjustment of the limiting plate depends on the slide rail in the length direction of the base, which limits the adjustment range and makes it unsuitable for processing large-sized workpieces.

[0005] On the one hand, the technical solution adopted by the embodiments of this application to solve its technical problem is: a clamp, including a limiting component.

[0006] A limiting component includes a driving member. The driving end of the driving member is detachably provided with a support plate. The driving member drives the support plate to move. The support plate has a plurality of T-shaped grooves with open ends. A limiting component is slidably disposed on the T-shaped groove. The limiting component includes a first sliding block, a second sliding block, and a limiting bolt. The first sliding block is slidably disposed inside the T-shaped groove. The second sliding block is slidably disposed on the upper surface of the T-shaped groove. The limiting bolt passes through and is screwed through the second sliding block and the first sliding block and abuts against the bottom wall of the T-shaped groove.

[0007] In one specific implementation, the driving component includes a drive motor, the output end of which is connected to a long screw, a lead screw pair is screwed onto the long screw, and the support plate is detachably connected to the lead screw pair.

[0008] In one specific implementation, a connecting block is fixedly connected to the bottom of the support plate, and a connecting member is provided on both the lead screw pair and the connecting block.

[0009] In one specific implementation, the connector includes a knob that is fixedly connected to a threaded rod, the threaded rod being screwed through the lead screw assembly and connected to the connecting block.

[0010] In one specific implementation, guide members may be detachably provided on both sides of the bottom of the support plate.

[0011] In one specific implementation, a magnetic attraction element is provided between the guide and the support plate.

[0012] In one specific implementation, the magnetic attractor includes a magnet and a magnet block, the magnet being connected to a guide, and the magnet block being connected to the bottom of the support plate, with the magnet and the magnet block cooperating with each other.

[0013] On the other hand, the technical solution adopted by the embodiments of this application to solve its technical problem is: a milling machine, including the above-mentioned fixture and milling machine body.

[0014] The milling machine body includes a base, the drive unit is mounted on the base, a milling cutter device is mounted on the base, and the milling cutter of the milling cutter device is located above the support plate.

[0015] The advantages of the embodiments of this application are: 1. By adopting a combination structure of "first sliding block in T-slot + second sliding block on T-slot + through-through limiting bolt", the limiting bolt directly abuts against the bottom wall of the T-slot, making the locking more stable, the force more even, and the adjustment operation more convenient. Furthermore, since both ends of the T-slot are open, the limiting component can slide along the entire stroke of the slot, adapting to a wider range of workpiece sizes.

[0016] 2. The detachable connection between the support plate and the drive component allows for quick replacement of the appropriate support plate according to workpiece requirements, resulting in greater versatility.

[0017] 3. The open ends of the T-slot allow the middle limiting component to be quickly removed from the support plate when clamping large workpieces without affecting the clamping of the large workpieces. Attached Figure Description

[0018] Figure 1 A schematic diagram of the fixture and milling machine structure provided for the embodiments of this application; Figure 2 A schematic diagram of the structure of Embodiment 1 of this application is provided for the purpose of implementing this application; Figure 3 A schematic diagram of the structure of Embodiment 2 of this application is provided for the purpose of implementing this application; Figure 4 A schematic diagram of the structure of Embodiment 3 of this application is provided for the purpose of implementing this application; Figure 5 A schematic diagram of the limiting member structure provided for the embodiments of this application; Figure 6 A schematic diagram of the connector structure provided for an embodiment of this application; Figure 7 A schematic diagram of the magnetic suction component structure provided for an embodiment of this application.

[0019] In the diagram: 10-milling machine body; 110-base; 120-milling cutter device; 20-limiting component; 210-driving component; 211-drive motor; 212-long screw; 213-lead screw pair; 214-bearing seat; 220-support plate; 221-T-slot; 222-mounting slot; 230-limiting component; 231-first sliding block; 232-second sliding block; 233-limiting bolt; 240-connecting block; 250-connecting component; 251-knob; 252-threaded rod; 260-magnetic component; 261-magnet; 262-magnet block. Detailed Implementation

[0020] The technical solution in this application embodiment is to solve the problem that the adjustment of the limiting plate relies on the slide rail in the length direction of the base, which limits the adjustment range and makes it unsuitable for processing large-sized workpieces. The overall idea is as follows: Example 1 Please see Figures 1-7 A fixture and milling machine, including a limiting component 20.

[0021] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7The limiting component 20 includes a driving member 210. The driving end of the driving member 210 is detachably provided with a support plate 220. The driving member 210 drives the support plate 220 to move. The support plate 220 has several T-shaped grooves 221 with open ends. A limiting member 230 is slidably provided on the T-shaped grooves 221. The limiting member 230 includes a first sliding block 231, a second sliding block 232, and a limiting bolt 233. The first sliding block 231 is slidably disposed inside the T-shaped groove 221. The second sliding block 232 is slidably disposed on the upper surface of the T-shaped groove 221. The limiting bolt 233 passes through the second sliding block 232 and is screwed through the first sliding block 231 and abuts against the inner bottom wall of the T-shaped groove 221. When processing the workpiece, first rotate each limiting bolt 233 to disengage the nut of the limiting bolt 233 from the second sliding block 232. Then, the second sliding block 232 can be lifted upwards, and the workpiece placed on the support plate 220. At this point, the second sliding block 232 is positioned above the workpiece. Then, rotate the limiting bolt 233 to press it tightly against the workpiece, achieving limiting and clamping. By adopting the combined structure of "first sliding block 231 in T-slot 221 + second sliding block 232 on T-slot 221 + through limiting bolt 233," the limiting bolt 233 directly abuts against the bottom wall of the T-slot 221, resulting in more stable locking, more even force distribution, and simpler adjustment. Furthermore, because both ends of the T-slot 221 are open, the limiting component 230 can slide along the entire stroke of the slot, adapting to a wider range of workpiece sizes. The detachable connection between the support plate 220 and the drive component 210 allows for quick replacement of the support plate 220 to suit different workpiece requirements, enhancing its versatility. The open ends of the T-slot 221 allow for the rapid removal of the middle limiting component 230 from the support plate 220 when clamping large workpieces, without affecting the clamping of the large workpiece.

[0022] The driving component 210 includes a drive motor 211. A long screw 212 is connected to the output end of the drive motor 211. A lead screw pair 213 is screwed onto the long screw 212. The support plate 220 is detachably connected to the lead screw pair 213. Specifically, the drive motor 211 is mounted on one end of the base 110, and a bearing seat 214 is mounted on the other end of the base 110. One end of the long screw 212 is fixedly connected to the output end of the drive motor 211, and the other end of the long screw 212 is rotatably connected to the bearing seat 214. The lead screw pair 213 is screwed onto the outside of the long screw 212 and fixedly connected to the base 110. A connecting block 240 is fixedly connected to the bottom of the support plate 220, and a connecting piece 250 is provided on both the lead screw pair 213 and the connecting block 240. The connector 250 includes a knob 251, which is fixedly connected to a threaded rod 252. The threaded rod 252 is screwed through a lead screw assembly 213 and connected to a connecting block 240. Guide members are detachably mounted on both sides of the bottom of the support plate 220. Fixed blocks are fixedly connected to both ends of the base 110, and guide rods are fixedly connected to the opposite sides of the fixed blocks. A slider is slidably mounted on the guide rod, and a magnet 261 is slidably connected to it. The bottom of the support plate 220 has a mounting groove 222 that mates with the magnet 262. A magnetic attractor 260 is provided between the guide members and the support plate 220. The magnetic attractor 260 includes a magnet 261 and a magnet 262. The magnet 261 is connected to the guide members, and the magnet 262 is connected to the bottom of the support plate 220. The magnet 261 and the magnet 262 cooperate with each other. When the support plate 220 needs to be disassembled, the knob 251 is turned to rotate the threaded rod 252, which can separate the connecting block 240 from the lead screw pair 213, thus enabling the support plate 220 to be quickly disassembled and installed.

[0023] Please see Figures 1-7 Another technical solution adopted by the embodiments of this application to solve its technical problem is: a milling machine, including the above-mentioned fixture and milling machine body 10.

[0024] The milling machine body 10 includes a base 110, a drive unit 210 mounted on the base 110, and a milling cutter device 120 mounted on the base 110, with the milling cutter of the milling cutter device 120 located above the support plate 220. The milling cutter device 120 cuts the workpiece.

[0025] Example 2 The limiting member 230 on the T-slot 221 in the middle of the support plate 220 slides down from both ends of the T-slot 221 and leaves the support plate 220. The outermost limiting member 230 of the support plate 220 limits the workpiece with the largest size.

[0026] Example 3 The limiting members 230 on the T-slots 221 spaced apart by the support plate 220 slide off from both ends of the T-slots 221 and leave the support plate 220, and the limiting members 230 spaced apart by the support plate 220 limit the medium workpiece.

[0027] When this application is used: When processing the workpiece, first rotate each limiting bolt 233 so that the nut of the limiting bolt 233 moves away from the second sliding block 232. At this time, the second sliding block 232 can be lifted upwards, and the workpiece can be placed on the support plate 220. At this time, the second sliding block 232 is above the workpiece. Then rotate the limiting bolt 233 so that the second sliding block 232 is tightly pressed against the workpiece to achieve limiting clamping of the workpiece. By adopting the combined structure of "first sliding block 231 in T-slot 221 + second sliding block 232 on T-slot 221 + through limiting bolt 233", the limiting bolt 233 directly presses against the bottom wall of the inner wall of T-slot 221, making the locking more stable, the force more even, and the adjustment operation simpler. Moreover, since both ends of T-slot 221 are open, the limiting member 230 can slide along the entire stroke of the slot, adapting to a larger range of workpiece sizes. The detachable connection between the support plate 220 and the drive component 210 allows for quick replacement of the support plate 220 to suit different workpiece requirements, enhancing its versatility. The open ends of the T-slot 221 allow for the rapid removal of the middle limiting component 230 from the support plate 220 when clamping large workpieces, without affecting the clamping of the large workpiece.

[0028] It should be noted that the specific models and specifications of the drive motor 211 and the milling cutter device 120 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0029] The power supply and principle of the drive motor 211 and the milling cutter device 120 are clear to those skilled in the art and will not be described in detail here.

[0030] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A clamp, characterized in that, include The limiting component (20) includes a driving member (210). The driving end of the driving member (210) is detachably provided with a support plate (220). The driving member (210) drives the support plate (220) to move. The support plate (220) has a plurality of T-shaped grooves (221) with open ends. A limiting member (230) is slidably provided on the T-shaped grooves (221). The limiting member (230) includes a first sliding block (231), a second sliding block (232), and a limiting bolt (233). The first sliding block (231) is slidably disposed inside the T-shaped groove (221). The second sliding block (232) is slidably disposed on the upper surface of the T-shaped groove (221). The limiting bolt (233) passes through the second sliding block (232) and is screwed through the first sliding block (231) and abuts against the inner bottom wall of the T-shaped groove (221).

2. The clamp as described in claim 1, characterized in that, The driving component (210) includes a drive motor (211), the output end of which is connected to a long screw (212), and a lead screw pair (213) is screwed onto the long screw (212). The support plate (220) is detachably connected to the lead screw pair (213).

3. The clamp as described in claim 2, characterized in that, The bottom of the support plate (220) is fixedly connected to a connecting block (240), and the lead screw pair (213) and the connecting block (240) are both provided with a connecting piece (250).

4. The clamp as described in claim 3, characterized in that, The connector (250) includes a knob (251) which is fixedly connected to a threaded rod (252). The threaded rod (252) is screwed through the lead screw pair (213) and connected to the connecting block (240).

5. The clamp as described in claim 1, characterized in that, Guide components can also be detachably installed on both sides of the bottom of the support plate (220).

6. The clamp as described in claim 5, characterized in that, A magnetic attraction element (260) is provided between the guide and the support plate (220).

7. The clamp as described in claim 6, characterized in that, The magnetic attractor (260) includes a magnet (261) and a magnet block (262). The magnet (261) is connected to the guide, and the magnet block (262) is connected to the bottom of the support plate (220). The magnet (261) and the magnet block (262) cooperate with each other.

8. A milling machine, characterized in that, include The clamp according to any one of claims 1-7, and The milling machine body (10) includes a base (110), the drive unit (210) is mounted on the base (110), the base (110) is mounted with a milling cutter device (120), and the milling cutter of the milling cutter device (120) is located above the support plate (220).

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