Machine tool machining head assembly and machine tool

Abstract

The utility model provides a machine tool processing head assembly, which comprises a saddle, a ram, a spindle box and a telescopic protective piece, the spindle box is connected with the ram, the spindle box is slidably connected with the saddle through the ram, the telescopic protective piece comprises a first protective cover and a second protective cover, the first protective cover can slide relative to the second protective cover, and the second protective cover can slide relative to the first protective cover. The first protective cover is arranged on the periphery of the spindle box in a sleeving mode and fixedly connected with the spindle box, and the second protective cover is arranged on the periphery of the first protective cover in a sleeving mode and connected with the sliding saddle. The utility model provides a machine tool. According to the machine tool machining head assembly, the telescopic spindle box can be protected in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of machine tools, and particularly relates to a machine tool processing head assembly and a machine tool. Background Art

[0002] In a horizontal machine tool, in order to protect the spindle box from being contaminated by flying objects such as chips and cutting materials, a protection device is usually provided for protection.

[0003] For the protection of the spindle box, a protective cover is generally fixed on the outer periphery of the spindle box to achieve the protection of the spindle box. However, when the spindle box expands and contracts, the protective cover with a fixed length cannot provide real-time protection for the extended spindle box. For example, please refer to the patent with the application number 201811061262.3.

[0004] Therefore, the technical problem that needs to be solved urgently is that the protective cover with a fixed length cannot provide real-time protection for the telescopic spindle box. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide a machine tool processing head assembly and a machine tool, which can provide real-time protection for the telescopic spindle box.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model provides a machine tool processing head assembly, including a saddle, a ram, a spindle box and a telescopic protection member. The spindle box is connected to the ram, the spindle box is slidably connected to the saddle through the ram. The telescopic protection member includes a first protective cover and a second protective cover. The first protective cover is slidable relative to the second protective cover. The first protective cover is sleeved on the outer periphery of the spindle box and fixedly connected to the spindle box. The second protective cover is sleeved on the outer periphery of the first protective cover and connected to the saddle.

[0008] In some feasible embodiments, the second protective cover is slidably connected to the saddle. In the state where the second protective cover completely extends relative to the saddle, the end of the second protective cover away from the first protective cover is aligned with the end of the saddle close to the extended spindle box.

[0009] In some feasible embodiments, the telescopic protection member further includes a third protective cover, and the third protective cover is slidably sleeved between the first protective cover and the second protective cover.

[0010] In some feasible embodiments, the second protective cover is fixedly connected to the saddle, and the sum of the lengths of the first protective cover, the second protective cover and the third protective cover is greater than or equal to the length of the spindle box.

[0011] In some feasible embodiments, a seal is provided between the first shield and the second shield, and a seal is provided between the outer periphery of the second shield and the saddle.

[0012] In some feasible embodiments, a chip scraping portion is provided between the first shield and the second shield.

[0013] In some feasible embodiments, the chip scraping portion is provided on the inner peripheral wall of the second shield, the chip scraping portion faces the outer peripheral wall of the first shield and extends obliquely from the retracting direction of the first shield to the extending direction of the first shield.

[0014] In some feasible embodiments, the chip scraping portion includes a first scraping plate and a second scraping plate. The first scraping plate and the second scraping plate are spaced apart in the extending direction of the spindle box. Both the first scraping plate and the second scraping plate are provided from the inner peripheral wall of the second shield towards the outer peripheral wall of the first shield, and from the retracting direction of the first shield towards the extending direction of the first shield. The first scraping plate and the second scraping plate extend obliquely forward.

[0015] In some feasible embodiments, a chip guiding slope is provided at the top of the second shield. The chip guiding slope slopes downward from the side of the second shield away from the first shield towards the side close to the first shield.

[0016] The present utility model provides a machine tool, including the above-mentioned machine tool machining head assembly.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] The present utility model provides a machine tool machining head assembly, including a saddle, a ram, a spindle box and a telescopic protective member. The spindle box is connected to the ram. The spindle box is slidably connected to the saddle through the ram. The telescopic protective member includes a first shield and a second shield. The first shield is slidable relative to the second shield. The first shield is sleeved on the outer periphery of the spindle box and fixedly connected to the spindle box. The second shield is sleeved on the outer periphery of the first shield and connected to the saddle, and can provide real-time protection for the telescopic spindle box. Description of the Drawings

[0019] Figure 1 is a schematic structural diagram of a machine tool machining head assembly provided by some embodiments of the present utility model.

[0020] Description of the Reference Numerals:

[0021] 100, saddle; 101, first end; 200, ram; 300, spindle box; 301, outer end; 400, telescopic protective member; 410, first shield; 420, second shield; 401, chip scraping portion; 500, spindle. Detailed implementation manners

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] It should be noted that when an element is referred to as being "disposed on" another element, it can be directly disposed on the other element or there can also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there can also be an intermediate element. When an element is referred to as being "mounted on" another element, it can be directly mounted on the other element or there can also be an intermediate element.

[0024] In addition, it should also be understood that all directional indications (such as up, down, left, right, middle...) in the embodiments are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the figure). If this specific posture changes, then the directional indications will also change accordingly; terms such as "first" and "second" are used to distinguish different structural components. These terms are only for the convenience of describing the present utility model in a simplified manner and cannot be understood as a limitation of the present utility model.

[0025] Please refer to Figure 1 , an embodiment of the first aspect of the present utility model provides a machine tool machining head assembly, including a saddle 100, a ram 200, a spindle box 300 and a telescopic protective member 400. The spindle box 300 is connected to the ram 200, and the spindle box 300 is used to mount a spindle 500.

[0026] The saddle 100 is provided for mounting the ram 200 and the spindle box 300. In this embodiment, two spaced rails are provided on the front surface of the saddle 100. The ram 200 is slidably engaged with the two rails through two sliders, and the spindle box 300 is fixed to the front end of the ram 200.

[0027] Please refer to Figure 1 , the spindle box 300 is slidably connected to the saddle 100 through the ram 200. In this embodiment, the spindle box 300 is fixedly mounted on the front end of the ram 200. The ram 200 is located above the saddle 100, and the ram 200 is slidably connected to the saddle 100.

[0028] Please refer to Figure 1, the telescopic protective member 400 includes a first shield 410 and a second shield 420. The first shield 410 is slidable relative to the second shield 420. The first shield 410 is sleeved on the outer periphery of the spindle box 300 and fixedly connected to the spindle box 300. The second shield 420 is sleeved on the outer periphery of the first shield 410 and connected to the saddle 100. By providing the first shield 410 and the second shield 420, when the spindle box 300 expands and contracts relative to the saddle 100, the first shield 410 and the second shield 420 cooperate to protect the spindle box 300 in real time, preventing external chips from entering the ram 200 through the gap between the spindle box 300 and the telescopic protective member 400, and protecting the slide rails and sliders on the front side of the saddle 100.

[0029] In this embodiment, both the first shield 410 and the second shield 420 are cylindrical. The first shield 410 can be sleeved on the outer periphery of the second shield 420, or the second shield 420 can be sleeved on the outer periphery of the first shield 410, which can be adjusted according to actual situations.

[0030] In order to minimize the length of the telescopic protective member 400 while the telescopic protective member 400 can protect the spindle box 300 and improve the overall space utilization rate of the machine tool machining head assembly, the saddle 100 includes a first end 101 close to the spindle box 300. The second shield 420 is slidably connected to the saddle 100. In a state where the second shield 420 fully extends relative to the saddle 100, the end of the second shield 420 away from the first shield 410 is aligned with the end 101 of the saddle 100 that extends close to the spindle box 300. That is to say, the end of the second shield 420 away from the first shield 410 is aligned with the first end 101 of the saddle 100, so that the first shield 410 and the second shield 420 can completely protect the spindle box 300. Further, the spindle box 300 includes an outer end 301 away from the saddle 100, and the end of the first shield 410 away from the second shield 420 can also be aligned with the outer end 301 of the spindle box 300.

[0031] Please refer to Figure 1 , in order to reduce the lengths of the first shield 410 and the second shield 420 in the telescopic protective member 400 and minimize the space occupied by the telescopic protective member 400 in the contracted state, the telescopic protective member 400 further includes a third shield. The third shield is slidably disposed between the first shield 410 and the second shield 420. It can be understood that the number of the third shields can be one or at least two. The more the number of the third shields, the shorter the length of the telescopic protective member 400 in the contracted state, and the smaller the space occupied by the telescopic protective member 400.

[0032] Please refer to Figure 1, a seal is provided between the first shield 410 and the second shield 420, and a seal is provided between the outer periphery of the second shield 420 and the saddle 100. A seal is installed between the outer periphery of the second shield 420 and the saddle 100, so as to ensure the sealing performance between the second shield 420 and the saddle 100, and prevent chips and cutting fluid from entering the inside of the ram 200 through the gap between the second shield 420 and the saddle 100, and prevent chips and cutting fluid from entering the inside of the ram 200 through the gap between the first shield 410 and the second shield 420.

[0033] Please refer to Figure 1 , in order to enable the telescopic protective member 400 to protect the headstock 300 during telescoping, the second shield 420 is fixedly connected to the saddle 100, and the sum of the lengths of the first shield 410, the second shield 420 and the third shield is greater than or equal to the length of the headstock 300. In this way, when the headstock 300 is fully extended, the first shield 410, the second shield 420 and the third shield can also provide good protection for the headstock 300.

[0034] Please refer to Figure 1 , in order to enable the chips that fall between the first shield 410 and the second shield 420 to fall in time, a chip scraping portion is provided between the first shield 410 and the second shield 420. By providing the chip scraping portion, when the telescopic protective member 400 contracts, that is, when the first shield 410 and the second shield 420 move relative to each other, and the gap between the chip scraping portion and the second shield 420 is smaller than the height of the chips, the chips that fall on the first shield 410 can be removed in time. In some other embodiments, the chip scraping portion may be a brush, one end of the brush is fixedly connected to the second shield 420, and the other end of the brush abuts against the upper surface of the first shield 410, so as to prevent chips from entering the ram 200 from between the first shield 410 and the second shield 420.

[0035] In order to ensure that the chip scraping portion can efficiently remove chips, the chip scraping portion is provided on the inner peripheral wall of the second shield 420, the chip scraping portion faces the outer peripheral wall of the first shield 410 and extends obliquely from the retracting direction of the first shield 410 to the extending direction of the first shield 410, and there is a gap between the chip scraping portion and the outer peripheral wall of the first shield 410. For example, the chip scraping portion includes a first scraping plate and a second scraping plate, the first scraping plate and the second scraping plate are arranged at intervals, the first scraping plate and the second scraping plate are both arranged from the inner peripheral wall of the second shield 420 towards the outer peripheral wall of the first shield 410, and from the retracting direction of the first shield 410 towards the extending direction of the first shield 410, the first scraping plate and the second scraping plate extend obliquely forward, so as to scrape the chips, and the chips between the first shield 410 and the second shield 420 are isolated by the front and rear two scraping plates, improving the chip removal efficiency.

[0036] Please refer to Figure 1 Figure 1 , a chip guiding slope is provided at the top of the second shield 420, and the chip guiding slope slopes downward from the side of the second shield 420 away from the first shield 410 to the side close to the first shield 410. By providing a chip guiding slope on the second shield 420, the chip guiding slope can be a whole slope that slopes along one direction from one side of the second shield 420. In some other embodiments, the chip guiding slope can also be two slopes that slope along one direction from two opposite sides of the second shield 420, which can enable the chips falling on the second shield 420 to fall by their own gravity.

[0037] An embodiment of the second aspect of the present invention further provides a machine tool, including the above-mentioned machine tool machining head assembly.

[0038] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A machine tool machining head assembly, characterized in that, It includes a saddle (100), a ram (200), a spindle headstock (300) and a telescopic protective member (400). The spindle headstock (300) is connected to the ram (200), and the spindle headstock (300) is slidably connected to the saddle (100) through the ram (200). The telescopic protective member (400) includes a first shield (410) and a second shield (420). The first shield (410) is slidable relative to the second shield (420). The first shield (410) is sleeved on the outer periphery of the spindle headstock (300) and fixedly connected to the spindle headstock (300). The second shield (420) is sleeved on the outer periphery of the first shield (410) and connected to the saddle (100).

2. The machine tool machining head assembly according to claim 1, wherein, The second shield (420) is slidably connected to the saddle (100). In a state where the second shield (420) is fully extended relative to the saddle (100), one end of the second shield (420) away from the first shield (410) is aligned with one end (101) of the saddle (100) extending close to the spindle headstock (300).

3. The machine tool machining head assembly according to claim 1, characterized in that, The telescopic protective member (400) further includes a third shield, and the third shield is slidably sleeved between the first shield (410) and the second shield (420).

4. The machine tool machining head assembly according to claim 3, characterized in that, The second shield (420) is fixedly connected to the saddle (100), and the sum of the lengths of the first shield (410), the second shield (420) and the third shield is greater than or equal to the length of the spindle headstock (300).

5. The machine tool machining head assembly according to claim 1, characterized in that, A seal is provided between the first shield (410) and the second shield (420), and a seal is provided between the outer periphery of the second shield (420) and the saddle (100).

6. The machine tool machining head assembly according to any one of claims 1-5, characterized in that, A chip scraping part (401) is provided between the first shield (410) and the second shield (420).

7. The machine tool machining head assembly according to claim 6, wherein, The chip scraping part (401) is provided on the inner peripheral wall of the second shield (420). The chip scraping part (401) faces the outer peripheral wall of the first shield (410) and extends obliquely from the retracting direction of the first shield (410) to the extending direction of the first shield (410).

8. The machine tool machining head assembly according to claim 7, characterized in that, The chip scraping part (401) includes a first scraping plate (4011) and a second scraping plate (4012). The first scraping plate (4011) and the second scraping plate (4012) are spaced apart in the extending direction of the spindle headstock. Both the first scraping plate (4011) and the second scraping plate (4012) are provided from the inner peripheral wall of the second shield (420) towards the outer peripheral wall of the first shield (410), and from the retracting direction of the first shield (410) towards the extending direction of the first shield (410). The first scraping plate (4011) and the second scraping plate (4012) extend obliquely forward.

9. The machine tool machining head assembly according to any one of claims 1 to 5, characterized in that, A chip guiding slope is provided at the top of the second shield (420), and the chip guiding slope slopes downward from the side of the second shield (420) away from the first shield (410) to the side close to the first shield (410).

10. A machine tool, characterized in that, It includes a machine tool machining head assembly according to any one of claims 1-9.

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