Guide structure of telescopic shield for machine tool protection and telescopic shield

Abstract

The guide structure comprises a positioning shaft, a rolling piece and a sleeve body, clamping grooves matched with end plates are formed in the two ends of the positioning shaft, notches are formed in the transverse edges and the longitudinal edges of the inner sides of the end plates, the positioning shaft is arranged in the notches, the end plates on the two sides of the notches are inserted into the clamping grooves, and the rolling piece is arranged on the sleeve body. The rolling piece is rotationally connected to the positioning shaft, and the sleeve body is arranged on the outer side of the rolling piece in a sleeving mode and used for making rolling contact with the sliding rail. When the guide structure of the telescopic shield for machine tool protection works, the rolling pieces make contact with the upper surface and the side face of the sliding rail, the telescopic shield is stably guided to move along with a workbench, and the problem that abrasion and noise are generated due to the fact that the end plates make direct contact with the sliding rail is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tool slide rail protection, in particular to a guide structure of a telescopic shield for machine tool protection and the telescopic shield. Background Art

[0002] The telescopic cover of a machine tool is a device specially used for slide rail protection. One end of the telescopic cover is usually fixed to the bed, and the other end is connected to the workbench that moves on the slide rail. When the workbench moves, the cover expands or contracts synchronously with the workbench to prevent dust, metal chips, iron chips, chips and other materials from entering the equipment, reducing the wear of the slide rail and extending the service life of the machine.

[0003] The telescopic shield is composed of a plurality of sections of shield bodies which are stacked in sequence and can move relatively independently. The inner end of the shield body is provided with an end plate, and the end plate is provided with through holes corresponding to the slide rails. During the movement of the shield body, the hole walls of the through holes may contact with the slide rails and cause wear. Utility Model Content

[0004] The embodiments of the present application provide a guide structure of a telescopic shield for protecting a machine tool and a telescopic shield, so as to solve the problem of wear caused by contact between an end plate of the telescopic shield and a slide rail.

[0005] The first aspect of the present application provides a guiding structure of a telescopic shield for machine tool protection, comprising:

[0006] The positioning shaft has slots matching the end plates at both ends, and the transverse side and the longitudinal side of the inner side of the end plates are both provided with notches, the positioning shaft is arranged in the notches, and the end plates on both sides of the notches are inserted into the slots;

[0007] A rolling element, rotatably connected to the positioning shaft;

[0008] The sleeve body is sleeved on the outer side of the rolling element, and the sleeve body is used for rolling contact with the slide rail.

[0009] The beneficial effect of the above embodiment is that the rolling element contacts the upper surface and side surface of the slide rail, stably guiding the telescopic shield to move with the workbench, thereby solving the problem of wear and noise caused by direct contact between the end plate and the slide rail.

[0010] Based on the above embodiments, the embodiments of the present application may also be improved as follows:

[0011] In one of the embodiments of the present application: it also includes: a connecting member, connecting the positioning shaft with the end plate.

[0012] In one embodiment of the present application: the clamping groove and the end plate are tightly matched. The beneficial effect of this step is to ensure that the positioning shaft will not move due to the gap, thereby improving the stability of the rolling element connection.

[0013] In one embodiment of the present application: there are two rolling elements on the same positioning shaft and they are spaced apart from each other. The beneficial effect of this step: a longer sleeve can be connected between the two spaced rolling elements, thereby increasing the contact line length between the sleeve and the slide rail.

[0014] In one embodiment of the present application: the sleeve is made of rubber. The beneficial effects of this step are: reducing the wear during the contact with the slide rail and reducing the noise generated during the movement.

[0015] In one embodiment of the present application: it also includes: a positioning member connected to the positioning shaft and used to limit the position of the rolling member. The beneficial effect of this step: improving the stability of the telescopic shield movement.

[0016] A second aspect of the present application provides a telescopic shield, including the guide structure of the telescopic shield for machine tool protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 It is a schematic diagram of the guiding structure of the telescopic cover for machine tool protection;

[0019] Figure 2 for Figure 1 Sectional view along AA;

[0020] Figure 3 for Figure 2 A partial enlarged view of middle C;

[0021] Figure 4 for Figure 2 Sectional view along BB;

[0022] Figure 5 for Figure 4 A partial enlarged view of D in the middle.

[0023] Among them, 1 is a positioning shaft, 101 is a slot, 102 is a positioning slot, 2 is a connecting piece, 3 is a rolling piece, 4 is a sleeve, 5 is an end plate, 501 is a notch, and 6 is a positioning piece. DETAILED DESCRIPTION

[0024] In this application, unless otherwise clearly specified and limited, the terms in this application should be understood in a broad sense, such as connection can be fixed connection, detachable connection or integration, direct connection, or indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of different terms in this utility model can be understood according to specific circumstances, and the scope of the specific meaning should be limited to realizing the functions of this application.

[0025] Embodiment 1

[0026] like Figure 1-5 As shown, a guiding structure of a telescopic shield for machine tool protection comprises: a positioning shaft 1, a connecting member 2, a rolling member 3, and a sleeve 4. Slots 101 matching the end plates 5 are provided at both ends of the positioning shaft 1. Notches 501 are provided on the lateral sides and longitudinal sides of the inner sides of the end plates 5. The positioning shaft 1 is arranged in the notch 501. The end plates 5 on both sides of the notch 501 are inserted into the slots 101. The connecting member 2 connects the positioning shaft 1 with the end plates 5. The rolling member 3 is rotatably connected to the positioning shaft 1. The sleeve 4 is sleeved on the outer side of the rolling member 3. The sleeve 4 is used for rolling contact with the slide rail.

[0027] Specifically, attached Figure 5 The connecting member 2 shown in the figure is a rivet connection. In addition, bolts, nuts or cotter pins can be used instead of rivets to achieve a detachable connection.

[0028] Specifically, Figure 5 As shown, there are two rolling elements 3 on the same positioning shaft 1 and they are spaced apart from each other. The rolling elements 3 are bearings.

[0029] Specifically, Figure 5 As shown, the sleeve 4 is made of rubber material and is sleeved on the outside of two bearings on the same positioning shaft 1. The sleeve 4 reduces the wear during the contact with the slide rail and reduces the noise generated during the movement.

[0030] Specifically, Figure 5 As shown, the guide structure also includes: a positioning member 6, which is connected to the positioning shaft 1 and is used to limit the rolling member 3. Two positioning members 6 are connected to each shaft. The positioning members 6 are located on both sides of the overall structure formed by the rolling member 3 and the sleeve 4. The positioning member 6 adopts a shaft wire retaining ring and is clamped in the positioning groove 102 corresponding to the positioning shaft 1. The positioning member 6 improves the stability of the positioning of the rolling member 3 on the positioning shaft 1, thereby improving the stability of the movement of the telescopic shield.

[0031] When the guide structure of the telescopic shield for machine tool protection is in operation, the rolling element 3 contacts the upper surface and side surface of the slide rail, stably guiding the telescopic shield to move with the workbench, thus solving the problem of wear and noise caused by direct contact between the end plate 5 and the slide rail.

[0032] Embodiment 2

[0033] The difference between the embodiment and the first embodiment is that the second embodiment does not include a connecting piece, and the slot and the end plate are tightly fitted. During installation, the slot is directly aligned with the end plate and knocked in, and then the outer end surface of the end plate adjacent to the slot is knocked to deform the end plate, so that the positioning shaft can be limited on the end plate. This method further reduces the manufacturing cost of the guide structure.

[0034] Embodiment 3

[0035] A telescopic shield comprises the guide structure of the telescopic shield for machine tool protection disclosed in the first or second embodiment.

[0036] The above are only embodiments of the utility model. The common sense such as the known specific structures and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field are aware of all the common technical knowledge in the technical field to which the utility model belongs before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement the scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for the ordinary technicians in the relevant field to implement this application. It should be pointed out that for the technicians in this field, without departing from the structure of the utility model, several deformations and improvements can be made, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent.

Claims

1. A guiding structure of a telescopic cover for machine tool protection, characterized in that: include: The positioning shaft has slots matching the end plates at both ends, and the transverse side and the longitudinal side of the inner side of the end plates are both provided with notches, the positioning shaft is arranged in the notches, and the end plates on both sides of the notches are inserted into the slots; A rolling element, rotatably connected to the positioning shaft; The sleeve body is sleeved on the outer side of the rolling element, and the sleeve body is used for rolling contact with the slide rail.

2. The guide structure according to claim 1, characterized in that: Also includes: A connecting piece connects the positioning shaft to the end plate.

3. The guide structure according to claim 1, characterized in that: The clamping slot and the end plate are tightly matched.

4. The guide structure according to claim 1, characterized in that: There are two rolling elements on the same positioning shaft and the rolling elements are spaced apart from each other.

5. The guide structure according to claim 1, characterized in that: The sleeve body is made of rubber.

6. The guide structure according to claim 1, characterized in that: Also includes: A positioning member is connected to the positioning shaft and is used to limit the position of the rolling member.

7. A telescopic shield, characterized in that: The invention comprises a guiding structure of a telescopic shield for protecting a machine tool as described in any one of claims 1 to 5.

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