Lead screw and feed lever protection device

Abstract

The utility model discloses a protective device of lead screw and feed lever, including: slide carriage box body, split nut support, shield, scraper, slide carriage box body is connected to the carriage of machine tool, split nut support is connected to the back of slide carriage box body, split nut support and slide carriage box body have clearance, shield has upper flange and connecting edge, the scraper has upper flange and connecting edge. The connecting edge is connected with a machine tool body of a machine tool, the protective cover covers the lead screw and the feeding lever on the inner side, the scraper is connected to the slide carriage box body, the rear side of the scraper extends to the position above the upper blocking edge, and the scraper is used for scraping away substances falling on the upper blocking edge. When the lead screw protection device is used, due to the fact that the protection cover is of an integral fixing structure, the problem of chip clamping does not exist, the lead screw and the feeding lever can be covered with the protection cover structure, the protection cover does not deform or move, the sealing performance is good, and therefore the technical problem needing to be solved by the lead screw protection device is solved.

Description

Technical Field

[0001] The utility model relates to the field of horizontal machining machines for shafts and disks, in particular to a protective device for a lead screw and a feed rod. Background Art

[0002] In order to protect the operator's safety and ensure the speed, accuracy and life of the lead screw and feed lever, it is usually necessary to protect the exposed rotating lead screw and feed lever of the machine tool. Common protective covers are spiral steel belt type and roller curtain type. Although the spiral steel belt type protective cover has good sealing performance, the debris and particles in the processing are easy to gather at the folding part of the top of the protective cover, and it also has a great impact on the stroke. Due to the constraints of the structural space, it is difficult to protect the lead screw and feed lever at the same time. The feed lever is still exposed, and there are safety hazards during work. Although the roller curtain type protective cover can provide certain protection for the lead screw and feed lever, its sealing performance is not as good as that of the spiral steel belt type, and it cannot completely isolate the chip liquid and chips. The above two protective devices have complex structures, unsightly appearances, high manufacturing and installation costs, and are no longer suitable for the requirements of the international high-end market. Utility Model Content

[0003] The embodiment of the present application provides a double-bar protection device for a lead screw and a feed bar, so as to solve the problems of poor protection performance, high manufacturing cost and unsightly appearance of using a spiral steel belt type guard or a rolling curtain type guard.

[0004] The first aspect of the present application provides a screw protection device, comprising:

[0005] The slide box is connected to the large slide of the machine tool;

[0006] An opening and closing nut bracket is connected to the back of the slide box, and there is a gap between the opening and closing nut bracket and the slide box;

[0007] A guard having an upper rib and a connecting edge, wherein the connecting edge is connected to a bed of the machine tool, and the guard covers the lead screw on the inner side;

[0008] A scraper is connected to the slide box, the rear side of the scraper extends to above the upper rib, and the scraper is used to scrape away materials that fall onto the upper rib.

[0009] The beneficial effects of the above-mentioned embodiments are that when the screw and feed rod protection device is in use, since the shield is an integral fixed structure, there is no chip jamming problem, and the shield structure can arrange the screw and feed rod cover inside, and the shield will not deform or move, so the sealing is good, thereby solving the technical problem to be solved by this application.

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

[0011] In one embodiment of the present application: the shield further has a front baffle, and the front baffle is located in front of the lead screw and the feed rod. The beneficial effect of this step: the lead screw and the feed rod are shielded by the front baffle, thereby improving the protection effect.

[0012] In one embodiment of the present application: the shield further has a bevel edge, the bevel edge is arranged obliquely, and the bevel edge connects the front guard edge with the upper guard edge. The beneficial effect of this step: the upper guard edge, the bevel edge and the front guard edge together form a shielding structure for the lead screw and the feed rod.

[0013] In one embodiment of the present application, it further comprises: a bracket connected to the bed, and the front guard is connected to the bracket. The beneficial effect of this step is that the stability of the shield installation is improved.

[0014] In one of the embodiments of the present application: the rear side of the scraper has a first recess and a second recess, the shape of the first recess matches the shape of the shield, and the second recess is used to avoid the rack connected to the bed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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.

[0016] Figure 1 Schematic diagram of the protective device Figure 1 ;

[0017] Figure 2 Schematic diagram of the protective device Figure 2 .

[0018] Among them, 1 slide box, 2 opening and closing nut bracket, 3 shield, 301 upper retaining edge, 302 connecting edge, 303 front retaining edge, 304 miter edge, 4 scraper, 401 first notch, 402 second notch, 5 large slide, 6 bed, 7 gap, 8 screw, feed rod, 10 bracket. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figure 1 , 2 As shown, a screw protection device includes: a slide box 1, an opening and closing nut bracket 2, a shield 3, and a scraper 4. The slide box 1 is connected to a large slide 5 of a machine tool, the opening and closing nut bracket 2 is connected to the back of the slide box 1, and a gap 7 is provided between the opening and closing nut bracket 2 and the slide box 1. The shield 3 has an upper retaining edge 301 and a connecting edge 302, and the connecting edge 302 is connected to a bed 6 of the machine tool. The shield 3 covers the screw 8 on the inner side, and the scraper 4 is connected to the slide box 1. The rear side of the scraper 4 extends to above the upper retaining edge 301, and the scraper 4 is used to scrape away materials dropped on the upper retaining edge 301.

[0021] In some embodiments of the present application, Figure 1 , 2 As shown, the large slide 5 is slidably arranged on a track provided on the bed 6, the slide box 1 is connected to the front side of the large slide 5, the opening and closing nut bracket 2 is provided with a nut for engaging with the lead screw 8 and a corresponding feed rod 9 is provided with a guide hole, and a gap 7 for inserting the protective cover 3 is formed between the back side of the slide box 1 and the upper end of the front side of the opening and closing nut bracket 2, so as to prevent the protective cover 3 from interfering with the slide box 1 and the opening and closing nut bracket 2.

[0022] In some embodiments of the present application, Figure 2 As shown, the guard 3 also has a front guard edge 303, which is located in front of the screw 8 and the feed rod 9, the front guard edge 303 is set in the vertical direction, the upper guard edge 301 is set in the horizontal direction, the connecting edge 302 is located on the upper side of the rear end of the upper guard edge 301 and is set in the vertical direction, and a plurality of through holes are arranged on the surface of the connecting edge 302 at intervals along the length direction, and the bolts are connected to the bed 6 through the through holes, thereby connecting the guard 3 to the front side of the bed 6.

[0023] In some embodiments of the present application, Figure 2 As shown, the shield 3 also has a bevel edge 304, which is arranged in an oblique direction. The bevel edge 304 connects the front guard edge 303 with the upper guard edge 301, and the upper guard edge 301, the bevel edge 304 and the front guard edge 303 together form a shielding structure for the screw 8 and the feed rod 9.

[0024] In some embodiments of the present application, Figure 1 As shown, the screw 8 protection structure also includes: a bracket 10, the bracket 10 is connected to the bed 6, one end of the front retaining edge 303 is connected to the bracket 10, and the bracket 10 is used to rotatably connect the screw 8 and the feed rod 9.

[0025] In some embodiments of the present application, Figure 2As shown, the scraper 4 has a first notch 401 and a second notch 402 on the rear side. The shape of the first notch 401 matches the shape of the shield 3. The second notch 402 is used to avoid the rack connected to the bed 6. The slide box is rotatably connected to a gear, and the gear cooperates with the rack, so that the slide box is driven by rotating the gear to drive the large drag plate 5 to move along the rack.

[0026] When this type of screw protection device is in use, since the shield 3 is an integral fixed structure, there is no problem of chip jamming, and this type of shield 3 structure can cover the screw 8 and the feed rod 9 inside, and the shield 3 will not deform or move, so the sealing is good, thereby solving the technical problem to be solved by this application.

[0027] 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 screw and feed rod protection device, characterized in that: include: The slide box is connected to the large slide of the machine tool; An opening and closing nut bracket is connected to the back of the slide box, and there is a gap between the opening and closing nut bracket and the slide box; A guard having an upper rib and a connecting edge, wherein the connecting edge is connected to the bed of the machine tool, and the guard covers the lead screw and the feed rod on the inner side; A scraper is connected to the slide box, the rear side of the scraper extends to above the upper rib, and the scraper is used to scrape away materials that fall onto the upper rib.

2. The screw and feed rod protection device according to claim 1, characterized in that: The shield also has a front baffle, which is located in front of the lead screw and the feed rod.

3. The screw and feed rod protection device according to claim 2, characterized in that: The shield also has a mitered edge, which is arranged obliquely and connects the front rib with the upper rib.

4. The screw and feed rod protection device according to claim 2, characterized in that: Also includes: A hanging bracket is connected to the bed, and the front guard is connected to the hanging bracket.

5. The screw and feed rod protection device according to claim 1, characterized in that: The scraper has a first notch and a second notch on the rear side. The shape of the first notch matches the shape of the shield, and the second notch is used to avoid the rack connected to the bed.

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