Dustproof structure for guide rail of laser cutting machine

Abstract

The utility model relates to the field and discloses a dustproof structure for a guide rail of a laser cutting machine, which comprises a telescopic dustproof cover component covering the guide rail and a dustproof sheet arranged at the end of a sliding table and capable of being clamped with the guide rail in a guiding manner, and an oil supplementing mechanism capable of supplementing lubricating oil to the guide rail is arranged between the dustproof sheet and the sliding table. The oil supplementing mechanism comprises a brushing component capable of uniformly brushing oil on the surface of the guide rail and an oil storage cavity for supplying oil to the brushing component, the dustproof sheet can firstly scrape impurities and lubricating oil on the guide rail in the moving direction of the sliding table, the brushing component paints the lubricating oil on the guide rail, the dustproof effect is achieved, meanwhile, the lubricating effect is improved, and the service life of the guide rail is prolonged. When the sliding table is matched with the guide rail, sufficient lubrication can be achieved, and the guide rail and the sliding table are effectively protected.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser cutting equipment accessory field especially, relates to a dustproof structure for laser cutting machine guide rail. BACKGROUND

[0002] The existing laser cutting machine guide rail generally sets up a telescopic dust cover assembly on the beam of installing the guide rail to solve the problem that the machining debris or dust remains on the guide rail enters the sliding table, but the dust cover assembly is contracted or expanded along with the sliding table movement, and the gap for the fine dust to enter still exists between its own and the external environment, in order to reduce the influence of these fine dust on the guide rail, some manufacturers design the dustproof sheet that can clean the guide rail, and the specific structure can refer to the China patent with the announcement number CN217002691U that discloses a linear guide rail sliding block dustproof sheet, the clamping groove that can be matched with the cross section shape of the guide rail is formed in the dustproof sheet, and the lip portion is protruded on one end face of the dustproof sheet along the inner wall edge of the clamping groove.

[0003] The dustproof sheet is fixed on the sliding table of the linear guide rail, and the clamping groove is connected with the guide rail, when the sliding table moves, the protruding lip portion can scrape away the dust and impurities on the surface of the guide rail, in order to ensure the dustproof effect, the inner wall of the clamping groove is designed to be attached to the surface of the guide rail, which can scrape away the finer impurities, but at the same time, the lubricating oil on the surface of the guide rail is also scraped away, the guide rail has sufficient lubricating oil, which can form an oil film structure between the sliding table to lubricate, but after the lubricating oil is scraped away by the dustproof sheet, the lubricating effect of the oil film formed by the remaining lubricating oil is relatively weakened, resulting in poor lubricating effect when the sliding table moves. UTILITY MODEL CONTENTS

[0004] In view of the fact that the existing dustproof sheet is combined with the guide rail, which is easy to scrape away the lubricating oil on the guide rail during the movement of the sliding table, resulting in weakened lubricating effect, the utility model aims to provide a dustproof structure for laser cutting machine guide rail, which can provide dustproof effect and maintain lubricating effect of the guide rail.

[0005] In order to solve the above technical problems, the utility model solves them through the following technical schemes:

[0006] A dustproof structure for laser cutting machine guide rail, including the telescopic dust cover assembly that covers the guide rail and the dustproof sheet that is set on the end of the sliding table and can be connected with the guide rail, the dustproof sheet and the sliding table are provided with the oil supplement mechanism that can supplement the lubricating oil to the guide rail, the oil supplement mechanism includes the brushing part that can brush the lubricating oil to the surface of the guide rail and the oil storage cavity that supplies oil to the brushing part.

[0007] With the scheme, the oil supplement mechanism is additionally arranged between the dustproof sheet and the sliding table, when the sliding table moves, the dustproof sheet will first wipe off the impurities and lubricating oil on the guide rail in the moving direction of the sliding table, and then the brushing part brushes the lubricating oil on the guide rail, which plays a dustproof role and improves the lubricating effect, and when the sliding table cooperates with the guide rail, the guide rail and the sliding table can be fully lubricated.

[0008] Preferably, the oil supplement mechanism further comprises an intermittent oil supply assembly, the intermittent oil supply assembly comprises an oil tank capable of delivering lubricating oil to the oil storage cavity, a one-way valve is arranged between the oil tank and the oil storage cavity, and a pressurizing part capable of delivering air to the inner cavity of the oil tank is connected to the oil tank, and when the pressurizing part works, the oil tank is driven to supply oil to the oil storage cavity by increasing the air pressure in the oil tank.

[0009] With the scheme, considering that the sliding table will stay at a certain position for a long time when the laser cutting machine is in a non-working state, and at this time the brushing part is still cooperating with the guide rail, the lubricating oil in the oil storage cavity may flow out along the brushing part, resulting in excessive oil leakage, the intermittent oil supply assembly is additionally arranged, the intermittent oil supply effect of the oil storage cavity is achieved through the working of the pressurizing part, and the oil tank can reduce the possibility of excessive oil leakage when the sliding table stays at a certain position for a long time.

[0010] Preferably, the dust cover assembly comprises a telescopic cover in the shape of an organ, one end of the telescopic cover is fixed relative to the end of the guide rail, and the other end is fixedly connected with the sliding table, when the sliding table moves close to the end of the guide rail, the telescopic cover is folded and contracted, when the sliding table moves away from the end of the guide rail, the telescopic cover is unfolded and expanded, the telescopic cover is spaced apart and arranged with a sliding sheet capable of being sleeved on the guide rail and sliding along the guide rail with the contraction and expansion of the telescopic cover, and the pressurizing part comprises a pump and an elastic return member for driving the pump to expand and reset, the pump is fixedly arranged relative to the sliding table and located on the side of the sliding table facing the sliding sheet, when the telescopic cover contracts, the sliding sheet abuts against and compresses the pump to pressurize the inside of the oil tank, and when the telescopic cover expands, the elastic return member drives the pump to expand again to inhale air.

[0011] Preferably, both ends of the pump are fixedly provided with mounting sheets, one of the mounting sheets is fixedly arranged on the sliding table, and the elastic return member comprises a spring arranged between the two mounting sheets and sleeved outside the pump.

[0012] With the above scheme, considering the existing mechanical equipment using linear guide rails for movement, such as machine tools, laser cutting machines and the like, each time the machine is started or the program is re-run, the slide table is reset to the origin of the coordinate system for reset calibration, and the origin is generally located near the limit of the linear guide rail movement. In the reset process, the telescopic cover changes from the expanded state to the contracted state. When the telescopic cover approaches the contraction limit, the sliding sheet will abut against the mounting sheet and gradually compress the air pump to input air into the oil tank to increase the pressure. A part of the lubricating oil in the oil tank enters the oil storage cavity. When the slide table moves away from the limit of the guide rail movement, the telescopic cover expands again. At this time, the air pump is driven to expand and inhale air by the elastic reset member. When the slide table is reset to the origin again, the oil tank is pressurized again to realize intermittent oil supply.

[0013] Preferably, the coating component comprises a brush sheet, and a brush oil groove with a shape consistent with the cross-sectional shape of the guide rail is formed on the surface of the brush sheet. The inner wall of the brush oil groove is in contact with the surface of the guide rail. The brush sheet is connected to the oil storage cavity and draws lubricating oil therefrom.

[0014] Preferably, the brush sheet is made of felt material, and a soaking area capable of being sealingly inserted into the oil storage cavity is formed on the brush sheet.

[0015] With the above scheme, the felt material has good oil absorption performance. The soaking area of the brush sheet is inserted into the oil storage cavity to absorb lubricating oil, and the lubricating oil is dispersed to various parts near the brush oil groove through capillary effect. When the slide table moves along the guide rail, the brush sheet coats the lubricating oil on the guide rail.

[0016] Preferably, the dustproof sheet is arranged in a spaced manner relative to the brush sheet, and a spacer assembly is arranged therebetween. The dustproof sheet, the brush sheet and the spacer assembly are fixed on the slide table by a fastener.

[0017] The utility model discloses a dustproof structure for the guide rail of a laser cutting machine, which has the following advantages: the dustproof sheet is arranged between the brush sheet and the slide table, and the brush sheet is arranged behind the dustproof sheet. When the slide table moves, the dustproof sheet can scrape off the impurities and lubricating oil on the guide rail in the moving direction of the slide table, and the brush sheet can coat the lubricating oil on the guide rail. Thus, the dustproof effect and the lubricating effect are improved, the guide rail and the slide table are fully lubricated when they cooperate, and the guide rail and the slide table are effectively protected. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the external structure of a dustproof structure for the guide rail of a laser cutting machine according to the embodiment;

[0019] Figure 2 is a split schematic view of the external structure of a dustproof structure for the guide rail of a laser cutting machine according to the embodiment;

[0020] Figure 3 is Figure 2 is a local enlarged view of A in FIG. 4.

[0021] Figure 4 is a split schematic view of an external structure of a dustproof structure for a guide rail of a laser cutting machine of the embodiment;

[0022] Figure 5 is a partial enlarged view of B in Figure 4

[0023] Figure 6 is a right view of a dustproof structure for a guide rail of a laser cutting machine of the embodiment;

[0024] Figure 7 is a partial enlarged view of C-C in Figure 6

[0025] Figure 8 is a partial enlarged view of D in Figure 7

[0026] Figure 9 is a schematic view of a combination of a brush piece, an oil storage cavity and a dustproof piece in a dustproof structure for a guide rail of a laser cutting machine of the embodiment.

[0027] The names of the parts referred to by the respective numbers in the above drawings are as follows: 1, guide rail; 2, sliding table; 201, sliding block; 3, dust cover assembly; 301, telescopic cover; 302, sliding piece; 4, dustproof piece; 5, oil storage cavity; 6, oil tank; 7, air pump; 8, mounting piece; 9, spring; 10, brush piece; 11, brush oil groove; 12, infiltration area; 13, cushion block; 14, cross beam; 15, mounting seat; 16, mounting plate. DETAILED DESCRIPTION

[0028] The utility model will be described in further detail below in combination with the drawings and embodiments.

[0029] EMBODIMENT

[0030] A dustproof structure for a guide rail of a laser cutting machine, according to Figure 1 , 2 ​​​As shown, the dustproof cover assembly 3 is arranged on the guide rail 1, the guide rail 1 is fixed on the cross beam 14, the sliding table 2 is arranged on the guide rail 1, the dustproof cover assembly 3 comprises an accordion-like telescopic cover 301, both ends of the telescopic cover 301 are provided with mounting plates 16, one mounting plate 16 is arranged on the mounting seat 15 which is arranged on the cross beam 14 and is opposite to the other mounting plate 16, the other mounting plate 16 is opposite to the end of the sliding table 2 and is fixed, when the sliding table 2 moves close to the end of the guide rail 1, the telescopic cover 301 is folded and contracted, when the sliding table 2 moves away from the end of the guide rail 1, the telescopic cover 301 is unfolded and expanded, the sliding pieces 302 are arranged in the telescopic cover 301 and can be sleeved on the guide rail 1 and slide along the guide rail 1 when the telescopic cover 301 is contracted and expanded, the above is the prior art, therefore, only the structure of the dustproof cover assembly 3 on one side of the sliding table 2 is shown in the embodiment, and the details are not described herein.

[0031] The improvement of the embodiment is that, according to Figure 5 As shown, the end of the sliding table 2 is provided with the dustproof piece 4 which can be guided and connected with the guide rail 1, the dustproof piece 4 and the sliding table 2 are provided with the oil supplement mechanism which can supplement lubricating oil to the guide rail 1, the oil supplement mechanism comprises the brushing component which can brush lubricating oil on the surface of the guide rail 1, according to Figure 5 、 9 As shown, the brushing component comprises a brush piece 10, the brush piece 10 is provided with the oil brushing groove 11 which has the same shape as the cross section of the guide rail 1, the inner wall of the oil brushing groove 11 is attached to the surface of the guide rail 1, the brush piece 10 is made of felt material, the brush piece 10 is provided with the soaking area 12 which is inserted into the oil storage cavity 5, the dustproof piece 4 is arranged in parallel with the brush piece 10, the two are provided with the cushion block 13 assembly, the dustproof piece 4, the brush piece 10 and the cushion block 13 assembly are fixed on the sliding table 2 by a fastener.

[0032] The oil supplement mechanism further comprises the intermittent oil supply assembly, according to Figure 3 、 5 As shown, the intermittent oil supply assembly comprises the oil tank 6 which can deliver lubricating oil to the oil storage cavity 5, the oil tank 6 and the oil storage cavity 5 are provided with the one-way valve, the oil tank 6 is connected with the pressure increasing component which can deliver air to the inner cavity of the oil tank 6, in the embodiment, the pressure increasing component comprises the inflator 7, both ends of the inflator 7 are fixed with the mounting pieces 8, one mounting piece 8 is fixed on the sliding table 2, when the telescopic cover 301 is contracted, the sliding piece 302 close to the sliding table 2 can press the other mounting piece 8 on the inflator 7 and compress the inflator 7, the pressure increasing component further comprises the elastic reset member, according to Figure 8As shown, in the embodiment, the elastic reset member includes a spring 9 located between the two mounting pieces 8 and sleeved outside the air pump 7, which drives the air pump 7 to expand and reset when the telescopic cover 301 expands, the air pump 7 re-inhales, and the air pump 7 drives the air pump 7 to input air into the tank 6 again when the telescopic cover 301 is contracted again.

[0033] In combination with the above structure, referring to Figures 1-9 It can be known that the dustproof structure for the guide rail of the laser cutting machine in the embodiment adds the oil supplement mechanism between the dustproof sheet 4 and the sliding table 2, when the sliding table 2 moves, the dustproof sheet 4 can scrape off the impurities and lubricating oil on the guide rail 1 in the moving direction of the sliding table 2 in advance, and the brush sheet can brush the lubricating oil on the guide rail 1, which can improve the lubricating effect while playing the dustproof role, and can fully lubricate when the sliding table 2 cooperates with the guide rail 1, effectively protecting the guide rail 1 and the sliding table 2.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features. Any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A dustproof structure for a guide rail of a laser cutting machine, comprising a telescopic dust cover assembly (3) covering the guide rail (1) and a dust cover (4) arranged at the end of a sliding table (2) and capable of guiding and clamping with the guide rail (1), characterized in that: The dustproof sheet (4) and the sliding table (2) are provided with a lubricating oil supplementing mechanism capable of supplementing lubricating oil to the guide rail (1), the lubricating oil supplementing mechanism comprises a brushing component capable of brushing lubricating oil to the surface of the guide rail (1) and an oil storage cavity (5) capable of supplying oil to the brushing component.

2. The dustproof structure for a guide rail of a laser cutting machine according to claim 1, characterized in that: The lubricating oil supplementing mechanism further comprises an intermittent oil supply assembly, the intermittent oil supply assembly comprises an oil tank (6) capable of delivering lubricating oil to the oil storage cavity (5), a one-way valve is arranged between the oil tank (6) and the oil storage cavity (5), and the oil tank (6) is connected with a pressure increasing component capable of delivering air to the inner cavity of the oil tank (6), and when the pressure increasing component works, the oil tank (6) is driven to supply oil to the oil storage cavity (5) by increasing the air pressure in the oil tank (6).

3. The dustproof structure for a guide rail of a laser cutting machine according to claim 2, characterized in that: The dustproof cover assembly (3) comprises an accordion-shaped telescopic cover (301), one end of the telescopic cover (301) is fixed relative to the end of the guide rail (1), the other end is fixedly connected with the sliding table (2), the telescopic cover (301) is folded and contracted when the sliding table (2) moves close to the end of the guide rail (1), the telescopic cover (301) is unfolded and expanded when the sliding table (2) moves away from the end of the guide rail (1), the telescopic cover (301) is provided with sliding sheets (302) at intervals, the sliding sheets (302) are capable of being sleeved on the guide rail (1) and sliding along the guide rail (1) with the contraction and expansion of the telescopic cover (301), the pressure increasing component comprises a pump (7) and an elastic reset member capable of driving the pump (7) to expand and reset, the pump (7) is fixedly arranged relative to the sliding table (2) and located on the side of the sliding table (2) facing the sliding sheet (302), the sliding sheet (302) abuts against and compresses the pump (7) to increase the pressure in the oil tank (6) when the telescopic cover (301) is contracted, and the elastic reset member drives the pump (7) to re-expand and inhale air when the telescopic cover (301) is expanded.

4. The dustproof structure for a guide rail of a laser cutting machine according to claim 3, characterized in that: Both ends of the pump (7) are fixedly provided with mounting sheets (8), one of the mounting sheets (8) is fixedly arranged on the sliding table (2), and the elastic reset member comprises a spring (9) sleeved outside the pump (7) and located between the two mounting sheets (8).

5. The dustproof structure for a guide rail of a laser cutting machine according to claim 1, characterized in that: The brushing component comprises a brush sheet (10), the brush sheet (10) is provided with brush oil grooves (11) with a shape consistent with the cross-sectional shape of the guide rail (1), the inner wall of the brush oil groove (11) is attached to the surface of the guide rail (1), and the brush sheet (10) is connected with the oil storage cavity (5) and draws lubricating oil therefrom.

6. The dustproof structure for a guide rail of a laser cutting machine according to claim 5, characterized in that: The brush sheet (10) is made of felt material, and the brush sheet (10) is protrusively provided with an immersion area (12) capable of being sealingly inserted into the oil storage cavity (5).

7. The dustproof structure for a guide rail of a laser cutting machine according to claim 5, characterized in that: The dustproof sheet (4) is arranged at intervals relative to the brush sheet (10), and a cushion block (13) assembly is arranged therebetween, and the dustproof sheet (4), the brush sheet (10) and the cushion block (13) assembly are fixedly connected in series on the sliding table (2) by a fastener.

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