Main shaft protection device of engraving and milling machining center

Abstract

The utility model relates to the technical field of numerical control machine tools, in particular to a spindle protection device of an engraving and milling machining center, which comprises a machine frame, the machine frame comprises a movable working table arranged on the upper surface of the machine frame in a sliding mode and a cross beam erected above the working table, and a spindle device is arranged on the cross beam in a sliding mode and comprises a box body arranged on the cross beam in a sliding mode. A first mounting block is arranged in the box body, a main shaft body is detachably arranged on the first mounting block, a through hole allowing the output end of the main shaft body to extend out is formed in the bottom of the box body, a protective cover is slidably arranged at the output end of the main shaft body, and the lower portion of the protective cover can extend out of the through hole; and a transmission mechanism capable of promoting the protective cover to longitudinally reciprocate along the main shaft body is arranged between the first mounting block and the protective cover. The main shaft protective device of the engraving and milling machining center has the beneficial effect that the main shaft can be prevented from being damaged due to splashing of scrap iron.

Description

TECHNICAL FIELD

[0001] The utility model relates to numerical control machine tool technical field, concretely relates to a main shaft protection device of engraving and milling machining center. BACKGROUND

[0002] Engraving and milling machine is a kind of numerical control machine tool. It is generally considered that engraving and milling machine is numerical control milling machine using small cutter, high power and high-speed spindle motor. The advantage of engraving machine is in engraving, and if the hardness of processing material is relatively big, it will also be unsuitable. The emergence of engraving and milling machine can be said to fill the gap between the two, and when the fast rotating cutter or fast rotating object to be cut contacts, the object is cut.

[0003] But in the use process, it is found that the main shaft of engraving and milling machining center is exposed to the outside when engraving and milling metal parts, so that the iron filings splashing during processing can cause abrasion to the outer wall of the main shaft, thereby affecting the service life of the main shaft. SUMMARY

[0004] The utility model relates to a main shaft protection device of engraving and milling machining center that can prevent the main shaft from being damaged by iron filings splashing.

[0005] To achieve the above object, the utility model provides the following technical scheme: a main shaft protection device of engraving and milling machining center, including frame, the frame includes the mobile workstation of sliding in the upper surface of frame and the crossbeam of erecting above workstation, the main shaft device is slidably arranged on the crossbeam, characterized by: the main shaft device includes the box that is slidably arranged on the crossbeam, be equipped with the first mounting block in the box, the first mounting block is detachably equipped with the main shaft body, the box bottom is equipped with the through hole that the output end of main shaft body projects, the main shaft body output end is slidably equipped with the protective cover, and the lower part of protective cover can project through hole, the first mounting block is equipped with the transmission mechanism that can make protective cover reciprocate along the longitudinal direction of main shaft body between protective cover.

[0006] Adopt the above technical scheme: compared with the main shaft lacking protective structure in the prior art, the utility model through the setting of protective cover and transmission mechanism, when the main shaft needs to work, starts transmission mechanism and makes protective cover move downward, surrounds the outer wall of the output shaft of main shaft, so that the iron filings splashing during processing cannot cause damage to the outer wall of main shaft.

[0007] The utility model further provides: the transmission mechanism includes the first extension block that first installation block extends to both sides, the protective cover extends to both sides is equipped with the second extension block corresponding with the first extension block, be equipped with electric push rod between the first extension block and the second extension block, the output of electric push rod is connected with the second extension block, and the other end away from the output is connected with the first extension block.

[0008] Adopt above technical scheme: through the setting of electric push rod, and the output of electric push rod is connected with the second extension block on the protective cover, so that only need to start electric push rod can drive the protective cover and move down along the main shaft body, until the protective cover surrounds the output shaft outer wall of main shaft;Simultaneously through the setting of box, along with electric push rod and promote the second extension block, the second extension block will be with the bottom surface inside the box and stop, play the limiting effect, prevent the protective cover and stretch too much, thereby influence the main shaft work.

[0009] The utility model further provides: the shape of protective cover is consistent with the main shaft body output end shape, is hinged with the box door on the box.

[0010] Adopt above technical scheme: through the shape of protective cover and main shaft body is consistent, can guarantee the protective effect of protective cover to main shaft;Simultaneously through the hinged box door on the box, be convenient for the subsequent maintenance of staff to main shaft body.

[0011] The utility model further provides: be equipped with fixed plate between the box and crossbeam, the fixed plate transverse sliding is established on the crossbeam, opposite two first sliding rails are established on the side of fixed plate close to the box, at least two first sliding blocks are slidably arranged on the first sliding rail, the back of the box is connected on the side of first sliding block away from the first sliding rail, first transmission screw is established between the first sliding rail, one end of first transmission screw is connected with first motor, first transmission part is connected on first transmission screw, and the back of the box is connected with first transmission part.

[0012] Adopt above technical scheme: through the setting of fixed plate, first sliding rail, first sliding block and first motor, when starting first motor, drive first transmission screw to rotate, thereby drive fixed plate to move longitudinally through first transmission part, thereby realize the longitudinal movement of main shaft device, can carry out engraving and milling to the metal piece of different sizes placed on the movable workbench, improve work efficiency.

[0013] The utility model further provides: opposite a plurality of second sliding blocks are established on the side of fixed plate close to the crossbeam, opposite two second sliding rails for the second sliding block sliding are established on the crossbeam, second transmission screw is established between the second sliding rail, second motor is connected with one end of second transmission screw, second transmission part is connected on second transmission screw, and second transmission part is connected with fixed plate.

[0014] The above technical scheme has the advantages that: through the arrangement of the second sliding rail, the second sliding block and the second motor, when the second motor is started, the second transmission screw is driven to rotate, thereby driving the second transmission member to drive the fixed plate to move along the cross beam, so that the spindle device moves horizontally, and the metal piece placed on the movable workbench can be milled in a large range, thereby improving the work efficiency.

[0015] The further arrangement of the utility model is that: two third sliding rails are oppositely arranged on the upper surface of the rack, a plurality of third sliding blocks are arranged on the bottom of the movable workbench and correspond to the third sliding rails, the third sliding blocks can reciprocate along the third sliding rails, a third transmission screw is arranged between the third sliding rails, a third motor is connected to one end of the third transmission screw, a third transmission member is connected to the third transmission screw, and the third transmission member is connected to the bottom of the movable workbench.

[0016] The above technical scheme has the advantages that: through the arrangement of the third sliding rail, the third sliding block and the third motor, when the third motor is started, the third transmission screw is driven to rotate, thereby driving the third transmission member to drive the movable workbench to move, and the movable workbench is combined with the horizontal movement and the vertical movement of the spindle device, so that the metal piece placed on the movable workbench can be milled in a large range, thereby further improving the work efficiency.

[0017] The utility model will be further explained in detail in combination with the drawings and examples. DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the whole structure schematic diagram of the utility model.

[0019] Figure 2 It is the whole structure schematic diagram of the utility model without tank.

[0020] Figure 3 It is the whole structure schematic diagram of the utility model without spindle body.

[0021] Figure 4 It is the whole structure schematic diagram of the utility model without spindle device.

[0022] Figure 5 It is the whole structure schematic diagram of the utility model without spindle device.

[0023] Label explanation: rack 1, third slide rail 11, third transmission screw 12, third motor 13, third transmission 14, moving workbench 2, third sliding block 21, crossbeam 3, fixed plate 31, first slide rail 311, first sliding block 312, first transmission screw 313, first motor 314, first transmission 315, second sliding block 316, second slide rail 32, second transmission screw 33, second motor 34, second transmission 35, spindle device 4, box 41, first mounting block 42, spindle body 43, protective cover 5, transmission mechanism 6, first extension block 61, second extension block 62, electric push rod 63. DETAILED DESCRIPTION

[0024] The specific embodiment and the disclosed embodiment drawings only involve the structures related to the disclosed embodiments, and other structures can refer to the general design. Those skilled in the art can make modifications to the embodiments without creative contribution after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, they are protected by the patent law.

[0025] As Figures 1-5 shown in a kind of engraving and milling machining center's spindle protection device, including rack 1, rack 1 includes slidingly arranged on the upper surface of rack 1 moving workbench 2 and erecting in the upper of workbench crossbeam 3, crossbeam 3 is slidably provided with spindle device 4, spindle device 4 includes the box 41 of slidingly arranged on crossbeam 3, hingedly provided with box door on box 41, first mounting block 42 is arranged in box 41, first mounting block 42 is detachably provided with spindle body 43, the bottom of box 41 is provided with the through hole for the output end of spindle body 43 to extend, protective cover 5 is slidably arranged on the output end of spindle body 43, and the lower part of protective cover 5 can extend through the hole, transmission mechanism 6 is arranged between first mounting block 42 and protective cover 5, which can promote protective cover 5 to move longitudinally along spindle body 43.

[0026] As Figures 2-3 shown, transmission mechanism 6 includes the first extension block 61 of first mounting block 42 extending to both sides, the second extension block 62 corresponding to the first extension block 61 is arranged on both sides of protective cover 5, electric push rod 63 is arranged between first extension block 61 and second extension block 62, the output end of electric push rod 63 is connected with second extension block 62, the other end away from the output end is connected with first extension block 61, the shape of protective cover 5 is consistent with the shape of the output end of spindle body 43.

[0027] As Figure 4A fixing plate 31 is provided between the box body 41 and the crossbeam 3. The fixing plate 31 is slidably mounted on the crossbeam 3. Two first slide rails 311 are provided opposite each other on the side of the fixing plate 31 closest to the box body 41. At least two first sliding blocks 312 are slidably mounted on the first slide rails 311. The side of the first sliding blocks 312 away from the first slide rails 311 is connected to the back of the box body 41. A first transmission screw 313 is provided between the first slide rails 311. A first motor 314 is linked to one end of the first transmission screw 313. A first transmission component 315 is connected to the first transmission screw 313, and the first transmission component 315 is connected to the back of the box body 41.

[0028] like Figure 5 The fixed plate 31 shown has several second sliding blocks 316 on one side near the crossbeam 3. The crossbeam 3 has two second slide rails 32 for the second sliding blocks 316 to slide on. A second transmission screw 33 is provided between the second slide rails 32. A second motor 34 is linked to one end of the second transmission screw 33. A second transmission component 35 is connected to the second transmission screw 33 and is connected to the fixed plate 31.

[0029] like Figure 5 The frame 1 shown has two third slide rails 11 facing each other on its upper surface. The bottom of the movable worktable 2 has several third sliding blocks 21 corresponding to the third slide rails 11. The third sliding blocks 21 can reciprocate along the third slide rails 11. A third transmission screw 12 is provided between the third slide rails 11. A third motor 13 is linked to one end of the third transmission screw 12. A third transmission component 14 is connected to the third transmission screw 12 and is connected to the bottom of the movable worktable 2.

[0030] In use, compared with the lack of a protective structure for the spindle in the prior art, this utility model, through the setting of the protective cover 5 and the transmission mechanism 6, allows the protective cover 5 to be driven to move downward along the spindle body 43 simply by activating the electric push rod 63, until the protective cover 5 surrounds the outer wall of the output shaft of the spindle, so that the flying iron chips during processing will not cause damage to the outer wall of the spindle.

Claims

1. A spindle protection device of a carving milling center, comprising a frame, the frame comprising a moving workbench slidingly arranged on the upper surface of the frame and a crossbeam arranged above the workbench, a spindle device is slidingly arranged on the crossbeam, characterized in that: The main shaft device includes a box body slidingly arranged on the cross beam, the box body is internally provided with a first mounting block, the first mounting block is detachably provided with a main shaft body, the bottom of the box body is provided with a through hole for the output end of the main shaft body to extend out, the output end of the main shaft body is slidingly provided with a protective cover, and the lower part of the protective cover can extend out of the through hole, and the first mounting block and the protective cover are provided with a transmission mechanism capable of promoting the longitudinal reciprocating movement of the protective cover along the main shaft body.

2. The spindle guard for a carving and milling machining center according to claim 1, characterized in that: The transmission mechanism includes first extension blocks extending to both sides of the first mounting block, the protective cover is provided with second extension blocks corresponding to the first extension blocks, and the first extension blocks and the second extension blocks are provided with an electric push rod, the output end of the electric push rod is connected with the second extension blocks, and the other end away from the output end is connected with the first extension blocks.

3. The spindle guard for a carving and milling machining center according to claim 2, characterized in that: The shape of the protective cover is consistent with the shape of the output end of the main shaft body, and the box body is hingedly provided with a box door.

4. The spindle guard for a milling center according to any one of claims 1-3, characterized in that: The box body and the cross beam are provided with a fixing plate, the fixing plate is slidingly arranged on the cross beam in the transverse direction, two first sliding rails are oppositely arranged on the side of the fixing plate close to the box body, at least two first sliding blocks are slidingly arranged on the first sliding rails, the first sliding blocks are connected with the back of the box body on the side away from the first sliding rails, a first transmission screw is arranged between the first sliding rails, one end of the first transmission screw is connected with a first motor, a first transmission member is drivingly connected to the first transmission screw, and the first transmission member is connected with the back of the box body.

5. A spindle guard for a sculpting and milling machining center according to claim 4, characterized in that: A plurality of second sliding blocks are oppositely arranged on the side of the fixing plate close to the cross beam, two second sliding rails for the second sliding blocks to slide are oppositely arranged on the cross beam, a second transmission screw is arranged between the second sliding rails, one end of the second transmission screw is connected with a second motor, a second transmission member is drivingly connected to the second transmission screw, and the second transmission member is connected with the fixing plate.

6. A spindle guard for a sculpting and milling machining center according to claim 5, characterized in that: Two third sliding rails are oppositely arranged on the upper surface of the rack, a plurality of third sliding blocks are arranged on the bottom of the movable workbench corresponding to the third sliding rails, the third sliding blocks can reciprocate along the third sliding rails, a third transmission screw is arranged between the third sliding rails, one end of the third transmission screw is connected with a third motor, a third transmission member is drivingly connected to the third transmission screw, and the third transmission member is connected with the bottom of the movable workbench.

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