CN204413751U - A kind of guide rail telescopic protecting device - Google Patents

Abstract

The utility model relates to a guide rail telescopic protection device, which belongs to the functional parts of machine tools. The utility model includes a protective cover, a sliding table, a fixed bracket, a spring and a limit bracket. The sliding table is slidably installed on the guide rail of the machine tool. The section is fixedly connected with the slide table, the upper end of the outer wall of the middle section of the protective cover and the small section of the protective cover are equipped with upper stops, and the lower end of the inner wall of the large section of the protective cover and the middle section of the protective cover is provided with a lower stopper, and each lower stopper is fixed. There is a scraper plate, the lower end of the protective cover section is provided with a connecting part, the connecting part is provided with a lower spring hook, the fixing bracket is fixed under the lower end of the guide rail, the fixing bracket is provided with a lower spring hook, and the two ends of the spring are respectively connected with the upper spring hook The lower spring hook is connected, and the limit bracket is fixed on the bottom of the fixed bracket. The limit bracket is provided with a guide sleeve and a limit block, and the guide sleeve is sleeved on the outside of the spring. The problem that the protective cover of the guide rail of the existing machine tool has a relatively large structure occupation space is solved.

Description

A guide rail telescopic protection device

technical field

The utility model belongs to the field of functional components of machine tools, and in particular relates to a guide rail telescopic protection device.

Background technique

The protective cover structure on the traditional machine tool guide rail generally includes a large section of the protective cover and a small section of the protective cover. Usually, the small section of the protective cover is fixed and the large section of the protective cover is moved. The shrinkage length of the protective cover in this structure is relatively long, and the protective cover structure occupies The space is relatively large, which affects the stroke of the sliding table sliding up and down.

Utility model content

The purpose of the utility model is to overcome the defect that the protective cover structure of the existing machine tool guide rail takes up a relatively large space, and provide a compact and flexible guide rail telescopic protection device.

For this reason, the utility model adopts the following technical solutions: a guide rail telescopic protection device, which is characterized in that the protection device includes a protective cover, a sliding table, a fixed bracket, a spring and a limit bracket, and the sliding table is slidably installed on the machine tool. On the guide rail, the protective cover is composed of a large section of the protective cover, a middle section of the protective cover, and a small section of the protective cover in sequence, so that the middle section of the protective cover can slide and move in the large section of the protective cover, and the small section of the protective cover can be in the middle section of the protective cover. Sliding movement, that is, the large section of the protective cover, the middle section of the protective cover and the small section of the protective cover form a floating connection with each other. The large section of the protective cover is fixedly connected with the sliding table, and moves up and down with the sliding table. The upper end of the outer wall of the middle section of the cover and the small section of the protective cover is provided with an outward upper stopper, and the lower end of the inner wall of the large section of the protective cover and the middle section of the protective cover is provided with an inward lower stopper. A scraping plate is fixedly installed on the stoppers to prevent the chips in the machine tool processing cavity from entering the inner cavity of the protective cover. The bracket is fixed below the lower end of the guide rail of the machine tool, and the upper spring hook corresponding to the lower spring hook is arranged on the fixed bracket, and the two ends of the spring are respectively connected with the upper spring hook and the lower spring hook, and the limit The bracket is fixedly installed on the bottom of the fixed bracket, and the limit bracket is provided with a guide sleeve and a limit block arranged on the outer wall of the guide sleeve, and the guide sleeve is sleeved on the outside of the spring.

As a supplement and improvement to the above technical solution, the utility model also includes the following technical features.

The upper end of the middle section of the protective cover is provided with a guide block to cooperate with the guide rail of the machine tool to ensure the fast and stable operation of the middle section of the protective cover up and down.

The scraping plate is provided with a scraping lip, and the scraping lip on the scraping plate at the bottom end of the large section of the protective cover elastically leans against the outer surface of the middle section of the protective cover, and the scraping lip at the bottom end of the middle section of the protective cover A scraping lip on the plate is resilient against the outer surface of said guard subsection.

When the utility model is used, when the sliding table moves upwards, the large section of the protective cover moves upwards with the sliding table, and at the same time, the small section of the protective cover moves upwards under the tension of the spring until the lower block at the bottom of the large section of the protective cover touches the protective cover The upper block of the middle section makes the large section of the protective cover drive the middle section of the protective cover to move upward until the lower stopper at the bottom of the middle section of the protective cover touches the upper stopper of the small section of the protective cover. At this time, the protective cover is in an extended state; when sliding When the table moves downward, the large section of the protective cover moves downward with the sliding table until the top of the inner cavity of the large section of the protective cover touches the upper end of the middle section of the protective cover. After the middle section of the protective cover moves for a period of time, the middle section of the protective cover The top of the inner cavity touches the upper end of the protective cover section, and the middle section of the protective cover pushes the protective cover section to overcome the tension of the spring and continues to move downward until the inner cavity top of the protective cover section abuts against the limit block. At this time, the protective cover in a contracted state.

The utility model can achieve the following beneficial effects: the floating connection is formed by the protective cover composed of three sections of large, medium and small in sequence, which can protect the guide rails on both sides of the sliding table. Low, increasing the formation of the machine tool sliding table moving up and down in a limited space.

Description of drawings

Fig. 1 is a schematic sectional view of the utility model in a contracted state.

Fig. 2 is a schematic cross-sectional view of the utility model in an extended state.

Detailed ways

Specific embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1 and Figure 2, the utility model protective cover, sliding table 1, fixed bracket 4, spring 5 and limit bracket 6, sliding table 1 is slidably installed on the guide rail 2 of machine tool, and protective cover is made of protective cover large section 12. The middle section 11 of the protective cover and the small section 8 of the protective cover are composed of movable suits in sequence. The inner cavity of the cover of the large section 12 of the protective cover, the middle section 11 of the protective cover and the small section 8 of the protective cover forms a protective inner cavity, and the opening of the protective inner cavity faces the guide rail 2. The middle section 11 of the protective cover can slide in the large section 12 of the protective cover, and the small section 8 of the protective cover can slide in the middle section 11 of the protective cover, that is, the large section 12 of the protective cover, the middle section 11 of the protective cover and the small section of the protective cover 8 form a floating connection with each other, the large section 12 of the protective cover is fixedly connected with the sliding table 1, and moves up and down with the sliding table 1, and the upper ends of the outer walls of the middle section 11 of the protective cover and the small section 8 of the protective cover are provided with outward upper stops Block 13, the lower end of the inner wall of the large section 12 of the protective cover and the middle section 11 of the protective cover are all provided with an inward lower stopper 9, and the upper end of the middle section 11 of the protective cover is provided with a guide block to cooperate with the guide rail 2 of the machine tool to ensure that the middle section of the protective cover 11 run quickly and stably up and down, each lower block 9 is fixedly equipped with a scraper plate 10, each scraper plate 10 is provided with a scraper lip, the scraper on the scraper plate 10 at the bottom of the large section 12 of the protective cover The lip elastically leans against the outer surface of the middle section 11 of the protective cover, and the scraping lip on the scraper plate 10 at the bottom of the middle section 11 of the protective cover elastically leans against the outer surface of the small section 8 of the protective cover to prevent chips from entering the machine tool processing cavity into the protective cover. In the inner chamber of the cover, the lower end of the protective cover section 8 is provided with a connecting portion, the connecting portion is provided with a lower spring hook 7, and the fixed bracket 4 is fixed below the lower end of the machine tool guide rail 2, and the fixed bracket 4 is provided with a hook that is compatible with the lower spring hook. 7 corresponding to the upper spring hook 3, the two ends of the spring 5 are respectively connected with the upper spring hook 3 and the lower spring hook 7, the limit bracket 6 is fixedly installed on the bottom of the fixed bracket 4, the limit bracket 6 is provided with a guide sleeve and is arranged on the guide sleeve The limit block on the outer wall and the guide sleeve are set on the outside of the spring 5 .

When the utility model is in use, when the sliding table 1 moves upwards, the large section 12 of the protective cover moves upwards with the sliding table 1, and at the same time, the small section 8 of the protective cover moves upwards under the tension of the spring 5 until the large section 12 of the protective cover moves upwards. The stopper 9 touches the upper stopper 13 of the middle section 11 of the protective cover, so that the large section 12 of the protective cover drives the middle section 11 of the protective cover to move upward until the lower stopper 9 at the bottom of the middle section 11 of the protective cover touches the small section 8 of the protective cover. Upper stopper 13, now the protective cover is in an extended state; when the sliding table 1 moves downward, the large section 12 of the protective cover moves downward with the sliding table 1 until the top of the inner cavity of the large section 12 of the protective cover touches the protective cover The upper end of the section 11, after the middle section 11 of the protective cover moves for a period of time, the top of the inner cavity of the middle section 11 of the protective cover touches the upper end of the small section 8 of the protective cover, and the middle section 11 of the protective cover pushes the small section 8 of the protective cover to overcome the force of the spring 5 The pulling force continues to move downward until the top of the inner chamber of the protective cover subsection 8 abuts against the limit block, and now the protective cover is in a retracted state.

Claims (3)

1. a guide rail telescopic protecting device, it is characterized in that: described protector comprises protective cover, sliding stand, fixed support, spring and limiting bracket, sliding stand is slidably mounted on the guide rail of lathe, protective cover is by the large joint of protective cover, save in protective cover, protective cover trifle is movable set composition successively, the i.e. large joint of protective cover, mutually floating connection is formed between joint and protective cover trifle in protective cover, the large joint of described protective cover is fixedly connected with described sliding stand, in protective cover, the outer wall upper end of joint and protective cover trifle is provided with upper block outwardly, the inwall lower end saved in the large joint of described protective cover and protective cover is provided with lower block inwardly, each described lower block is all installed with one and scrapes bits plate, described protective cover trifle lower end is provided with connecting portion, connecting portion is provided with lower spring to hook, described fixed support is fixed on the below of machine tool guideway lower end, fixed support is provided with and hooks corresponding upper spring with described lower spring, described both ends of the spring links with described upper spring and lower spring respectively and connects, described limiting bracket is fixedly installed in bottom described fixed support, limiting bracket is provided with fairlead and is arranged at the limited block on fairlead outer wall, it is outside that described fairlead is set in described spring.

2. a kind of guide rail telescopic protecting device according to claim 1, is characterized in that: save upper end in described protective cover and be provided with guide pad and coordinate with machine tool guideway.

3. a kind of guide rail telescopic protecting device according to claim 2, it is characterized in that: described bits plate of scraping is provided with and scrapes bits lip, the bits lip resilient abutment of scraping of scraping on bits plate of protective cover large joint bottom saves outer surface in described protective cover, and the scraping on bits plate of scraping saving bottom in protective cover considers lip resilient abutment to be worth doing in described protective cover trifle outer surface.