Metal cutting machine

Abstract

The utility model relates to the technical field of metal processing equipment, in particular to a metal cutting machine which comprises a machine tool, the machine tool comprises a tool rest, and a protection assembly is installed on the front side of the tool rest through a fixing device; the protection assembly comprises a protection plate, and the protection plate is slidably connected with the fixing device through a sliding frame. The fixing device is fixedly installed on the front side of the tool rest through the clamping device, and the locking device is arranged above the clamping device. According to the utility model, the protection plate is matched with the observation window to shield the knife rest, so that an operator is protected; by means of cooperation of the guide groove and the sliding block, fixing of the protection assembly is achieved; by means of the elastic force of the first elastic piece, after blocking of the wedge block on the sliding block is relieved, the sliding block can be driven to move rightwards, shielding on the tool rest is relieved, an operator can replace the tool bit or operate the tool rest conveniently, the wedge block is inserted into the notch in the middle of the sliding block, movement of the sliding block can be limited, and therefore the moving distance of the protection assembly is limited.

Description

Technical Field

[0001] This utility model relates to the field of metal processing equipment technology, specifically a metal cutting machine. Background Technology

[0002] Metal cutting refers to the machining process that uses cutting tools to remove excess material from a workpiece or blank, producing chips, thereby giving the workpiece or blank a specified geometric shape, size, and surface quality. Common cutting tools include lathes, milling machines, grinding machines, and drilling machines.

[0003] While CNC machine tools can automate the machining of complex parts, a large number of conventional lathes are still in use due to cost considerations and production volume constraints. During operation, a lathe uses a chuck to hold the workpiece, drives its rotation, and a cutting tool to cut it. CNC machine tools are equipped with safety doors to prevent chip splashing, but conventional lathes lack such protective measures, easily causing injury to operators. Some lathes are fitted with guard plates, which are usually fixed to the outside of the tool post. When the operator rotates the tool post or changes the cutting tool, the guard plate can interfere with their operation. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a metal cutting machine.

[0005] The technical solution of the utility model is:

[0006] A metal cutting machine, comprising:

[0007] A machine tool, the machine tool including a bed frame, an apron slidably mounted on the front side and middle of the bed frame, a tool post above the apron, and a protective component mounted on the front side of the tool post by a fixing device;

[0008] The protective component includes a protective plate, which is slidably connected to the fixing device via a sliding frame;

[0009] The fixing device is fixedly installed on the front side of the tool holder by a clamping device. A locking device is provided above the clamping device, which is used to control the sliding distance of the sliding frame.

[0010] Preferably, the protective plate has an observation window in the middle, which is made of transparent material and is used to observe the status of the knife holder.

[0011] Preferably, the sliding frame includes a fixed frame, and a slot is provided above the fixed frame, with the protective plate located in the slot.

[0012] Preferably, the mounting bracket has a slider on the bottom right side, and the slider has a notch in the middle.

[0013] Preferably, the locking device includes a guide groove, and the slider engages with the guide groove and can slide along the guide groove.

[0014] Preferably, a first elastic element is provided on the left side inside the guide groove, one end of the first elastic element abuts against the left end of the slider, and the other end abuts against the right end face of the guide groove.

[0015] Preferably, a wedge-shaped block is provided on the outer side of the right end of the guide groove, and the bottom of the wedge-shaped block is provided with an elastic limiting device. The wedge-shaped block blocks the right end of the guide groove and can move in the vertical direction.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention utilizes a protective plate in conjunction with an observation window to shield the tool holder, thereby protecting the operator. The guide groove and slider work together to secure the protective components. The elastic force of the first elastic element, after releasing the wedge block's obstruction of the slider, drives the slider to move to the right, removing the obstruction of the tool holder and facilitating the operator's replacement of the tool head or operation of the tool holder. The wedge block inserted into the notch in the middle of the slider restricts the slider's movement, thus limiting the movement distance of the protective components. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the lathe structure in this utility model;

[0020] Figure 3 This is a schematic diagram of the protective components and fixing device in this utility model;

[0021] Figure 4 This is a second schematic diagram of the protective components and fixing device structure in this utility model;

[0022] Figure 5 This is an exploded view of the protective components and fixing device structure in this utility model.

[0023] The meanings of the labels in the diagram are as follows:

[0024] 1. Machine tool; 11. Bed frame; 12. Power box; 13. Chuck; 14. Tailstock; 15. Apron; 16. Tool post;

[0025] 2. Protective components; 21. Protective plate; 22. Observation window; 23. Fixture; 24. Slot; 25. Slider;

[0026] 3. Fixing device; 31. Clamping frame; 32. Clamping plate; 33. Fixing bolt; 34. Guide groove; 35. First elastic element; 36. Wedge block; 37. T-shaped rod; 38. Limiting frame; 39. Second elastic element. Detailed Implementation

[0027] The following will be combined with the drawings in 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.

[0028] Example 1:

[0029] See also Figure 1-5 The present invention will describe the above technical solution in detail through the following embodiments:

[0030] A metal cutting machine, comprising:

[0031] Machine tool 1 includes a bed frame 11, a slide box 15 is slidably mounted on the front and middle of the bed frame 11, a tool post 16 is provided above the slide box 15, and a protective component 2 is mounted on the front of the tool post 16 by a fixing device 3.

[0032] The slide box 15 is connected to the bed frame 11 via a lead screw. The tool post 16 is connected to the slide box 15 via a lead screw and a guide rail. The slide box 15 is used to control the movement of the tool post 16. The chuck 13 is rotatably mounted on the top left side of the bed frame 11 via a power box 12. The tailstock 14 is slidably mounted on the top right side of the bed frame 11.

[0033] The chuck 13 is used to hold the workpiece, and the tailstock 14 is used to install accessories such as ejector pins and drill bits. The tool holder 16 is used to install the cutting tool and adjust its position.

[0034] The protective component 2 includes a protective plate 21, which is slidably connected to the fixing device 3 via a sliding frame.

[0035] The protective plate 21 is made of welded metal materials.

[0036] The protective plate 21 has an observation window 22 in the middle, which is made of transparent material.

[0037] The observation window 22 is used to observe the status of the tool holder 16. The observation window 22 may be made of transparent resin. The observation window 22 is snap-fitted into the center of the protective plate 21.

[0038] The sliding frame includes a fixed frame 23, and a slot 24 is provided above the fixed frame 23. The protective plate 21 is located in the slot 24.

[0039] The slot 24 covers the sides and bottom of the protective plate 21, and the protective plate 21 can slide vertically relative to the slot 24.

[0040] A slider 25 is welded to the bottom right side of the fixed frame 23, and the slider 25 has a notch in the middle.

[0041] There is a gap between the left end of the slider 25 and the left edge of the fixing frame 23.

[0042] The fixing device 3 is fixedly installed on the front side of the tool holder 16 by the clamping device. A locking device is provided above the clamping device, which is used to control the sliding distance of the sliding frame.

[0043] The clamping device includes a clamping frame 31. The bottom of the clamping frame 31 covers the front of the tool holder 16. Two clamping plates 32 are slidably installed on the inner side of the bottom of the clamping frame 31. The inner side of the clamping plates 32 abuts against the tool holder 16. Two fixing bolts 33 are provided on the outer side of the clamping plates 32. The fixing bolts 33 are threadedly connected to the clamping frame 31.

[0044] Rotating the fixing bolt 33 clockwise will drive it to move towards the clamping plate 32, thereby causing the clamping plate 32 to hold the tool holder 16, thus realizing the installation of the fixing device 3. It can be installed on existing lathes to realize the renovation of old lathes.

[0045] The locking device includes a guide groove 34, and the slider 25 engages with the guide groove 34 and can slide along the guide groove 34.

[0046] The guide groove 34 is located on the top surface of the clamping frame 31 and in front of the tool holder 16. The guide groove 34 is used to restrict the movement direction of the slider 25, so that the slider 25 can only slide in the horizontal direction and cannot rotate.

[0047] A first elastic element 35 is provided on the left side inside the guide groove 34. One end of the first elastic element 35 abuts against the left end of the slider 25, and the other end abuts against the left end face inside the guide groove 34.

[0048] The first elastic element 35 can be a known helical spring. The elastic force of the first elastic element 35 can drive the slider 25 to slide to the right, thereby driving the protective component 2 to slide to the right, and thus canceling the obstruction of the tool holder 16.

[0049] A wedge block 36 is provided on the outer side of the right end of the guide groove 34. The bottom of the wedge block 36 is provided with an elastic limiting device. The wedge block 36 blocks the right end of the guide groove 34 and can move in the vertical direction.

[0050] When the wedge block 36 blocks the right end of the guide groove 34, it can restrict the movement of the slider 25 and fix the protective component 2.

[0051] The elastic limiting device includes a T-shaped rod 37, which is slidably installed on the lower right side of the guide groove 34 via a limiting frame 38. The top of the T-shaped rod 37 is engaged with a wedge block 36, and a second elastic element 39 is sleeved between the wedge block 36 and the limiting frame 38 and on the T-shaped rod 37.

[0052] The second elastic element 39 can be a known helical spring. The elastic force of the second elastic element 39 can drive the wedge block 36 to move upward, thereby blocking the right end of the guide groove 34.

[0053] Pulling down the T-shaped rod 37 can drive the wedge block 36 to move downward, removing the obstruction on the right end of the guide groove 34. At this time, the slider 25 slides to the right, and the protective component 2 removes the obstruction on the tool holder 16. When the notch in the middle of the slider 25 is aligned with the wedge block 36, the wedge block 36 moves upward under the elastic force of the second elastic element 39 and inserts into the notch, restricting the movement of the slider 25, thereby controlling the movement distance of the slider 25.

[0054] In this embodiment, when the operator uses this device, first install the cutting tool onto the tool holder 16. Then, push the protective component 2 to the left, and the slider 25 slides to the left, pressing down on the wedge block 36. When the slider 25 is completely inside the guide groove 34, the pressure on the wedge block 36 disappears. Under the elastic force of the second elastic element 39, the wedge block 36 moves upward to block the right end of the guide groove 34, thus restricting the movement of the slider 25.

[0055] When the workpiece is finished and it is necessary to switch the cutting tool or adjust the tool holder 16, pulling down the T-shaped rod 37 can drive the wedge block 36 to move downward, thus removing the obstruction on the right end of the guide groove 34. At this time, the slider 25 slides to the right, and the protective component 2 removes the obstruction on the tool holder 16. When the notch in the middle of the slider 25 is aligned with the wedge block 36, the wedge block 36 moves upward under the elastic force of the second elastic element 39 and inserts into the notch.

[0056] When maintenance is required on the protective plate 21 and the observation window 22, the protective plate 21 and the observation window 22 can be removed from the slot 24.

[0057] In addition, this device uses a clamping plate 32 in conjunction with a clamping frame 31 to clamp the tool holder 16 for fixation, which can facilitate the retrofitting of existing old machine tools.

[0058] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal cutting machine, characterized in that, include: Machine tool (1), the machine tool (1) includes a bed frame (11), a slide box (15) is slidably installed on the front side and the middle of the bed frame (11), a tool post (16) is provided above the slide box (15), and a protective component (2) is installed on the front side of the tool post (16) by a fixing device (3); The protective component (2) includes a protective plate (21), which is slidably connected to the fixing device (3) via a sliding frame; The fixing device (3) is fixedly installed on the front side of the tool holder (16) by the clamping device. A locking device is provided above the clamping device, and the locking device is used to control the sliding distance of the sliding frame.

2. A metal cutting machine as described in claim 1, characterized in that: The protective plate (21) has an observation window (22) in the middle. The observation window (22) is made of transparent material and is used to observe the status of the knife holder (16).

3. A metal cutting machine as described in claim 1, characterized in that: The sliding frame includes a fixed frame (23), and a slot (24) is provided above the fixed frame (23). The protective plate (21) is located in the slot (24).

4. A metal cutting machine as described in claim 3, characterized in that: The bottom right side of the fixing frame (23) is provided with a slider (25), and the slider (25) has a notch in the middle.

5. A metal cutting machine as described in claim 4, characterized in that: The locking device includes a guide groove (34), and the slider (25) engages with the guide groove (34) and can slide along the guide groove (34).

6. A metal cutting machine as described in claim 5, characterized in that: The guide groove (34) has a first elastic element (35) on the left side inside. One end of the first elastic element (35) abuts against the left end of the slider (25), and the other end abuts against the left end face inside the guide groove (34).

7. A metal cutting machine as described in claim 6, characterized in that: The guide groove (34) has a wedge block (36) on the outer side of the right end. The bottom of the wedge block (36) is provided with an elastic limiting device. The wedge block (36) blocks the right end of the guide groove (34) and can move in the vertical direction.

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