A protective support structure for milling and turning machining areas

Abstract

This invention discloses a protective support structure for milling and turning machining areas, belonging to the field of CNC machine tool protection technology. It includes a frame with a first spindle, a second spindle, an intermediate moving part, a floating support frame, and a first telescopic protective cover. A fixed support frame is provided on the intermediate moving part, and a first guide rail and a second guide rail are provided on the fixed support frame. The floating support frame cooperates with the first guide rail and can move accordingly. The first telescopic protective cover includes a first layer and a second layer. The first layer is fixedly connected to the second spindle, and the second layer cooperates with the second guide rail to achieve telescopic movement. When the intermediate moving part moves relative to the second spindle, the first telescopic protective cover is stretched or compressed accordingly, and the floating support frame also moves accordingly. This ensures that the first telescopic protective cover always provides support without interference, preventing the support force in the middle section from weakening or even deforming due to excessive stretching. The structure has high strength and meets the machining requirements of different workpieces.

Description

Technical Field

[0001] This invention relates to the field of CNC machine tool protection technology, specifically to a protective support structure for the milling and turning machining area. Background Technology

[0002] The machining area of ​​a mill-turn machining center usually has a second spindle that moves laterally and a lower turret or center rest. During the machining process, in order to meet the machining requirements of workpieces of various sizes, the distance between the center rest or second spindle and the first spindle must change accordingly. Therefore, the requirements for the movement stroke of the protective cover are relatively high.

[0003] Existing protective covers are usually telescopic structures. The telescopic protective cover can be stretched or compressed accordingly as the central frame or the second main shaft moves. Under extreme conditions, when the telescopic protective cover is stretched to its longest state, due to the structural reasons of the telescopic protective cover itself, the supporting force in the middle part is weak, and the telescopic protective cover is prone to deformation.

[0004] Therefore, developing a protective support structure for the milling and turning machining area that has high structural strength, does not weaken the support and deform the middle part due to excessive stretching, and ensures that the distance between the center support or lower turret, the second spindle, and the first spindle meets the machining requirements of different workpieces is an urgent problem to be solved at this stage. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention provides a protective support structure for the milling and turning machining area. The intermediate moving part has a through hole and is equipped with a fixed support frame. Both the floating support frame and the first telescopic protective cover move under the support and guidance of the fixed support frame. When the intermediate moving part moves relative to the second spindle, the first telescopic protective cover is stretched or compressed, and the floating support frame also moves accordingly. This ensures that the middle part of the first telescopic protective cover is always supported, preventing the first telescopic protective cover from becoming weak or even deformed due to excessive stretching. The structure has high strength and makes it easier to meet the machining requirements of different workpieces by adjusting the distance between the intermediate moving part, the second spindle, and the first spindle.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] This invention provides a protective support structure for the milling and turning machining area, comprising:

[0008] A frame, on which a first spindle is mounted;

[0009] A second spindle is mounted on the frame and is movable along a first direction, which is a direction that is closer to or farther from the first spindle.

[0010] An intermediate moving part is located between the first main shaft and the second main shaft, and the intermediate moving part is capable of moving along the first direction; the intermediate moving part is provided with a through hole extending along the first direction;

[0011] A fixed support frame is fixed to the intermediate moving part and located at the lower edge of the through hole. One end of the fixed support frame extends into the through hole, and the other end of the fixed support frame extends away from the second main shaft. A first guide rail and a second guide rail extending along the first direction are provided on the upper surface of the fixed support frame.

[0012] A floating support frame, one end of which engages with the first guide rail and can move along the first guide rail, the floating support frame passing through the through hole, and the other end of the floating support frame located between the second main shaft and the intermediate moving part;

[0013] The first telescopic protective cover comprises multiple layers stacked vertically, with the bottom layer designated as the first layer and the top layer as the second layer. The first layer is located above the floating support frame. One end of the first layer is fixedly connected to the second main shaft, and the second layer cooperates with the second guide rail to move along the second guide rail. The top of the floating support frame and the bottom surface of the first layer form a sliding pair. During the process of the middle moving part moving away from the second main shaft, the first telescopic protective cover stretches, and the movement of the floating support frame provides support for the first telescopic protective cover. During the process of the middle moving part moving closer to the second main shaft, the first telescopic protective cover compresses, and the movement of the floating support frame does not cause interference.

[0014] As a preferred technical solution, the intermediate moving part or the fixed support frame is provided with a first limiting part, a second limiting part, a third limiting part and a fourth limiting part;

[0015] The floating support frame is provided with a first mating part that matches the first limiting part and a second mating part that matches the second limiting part. When the first limiting part and the first mating part are engaged, the intermediate moving part can drive the floating support frame to move towards the second main shaft; when the second limiting part and the second mating part are engaged, the intermediate moving part can drive the floating support frame to move away from the second main shaft.

[0016] The second layer is provided with a third mating part that matches the third limiting part and a fourth mating part that matches the fourth limiting part. When the third limiting part and the third mating part are mated, the intermediate moving part can drive the second layer to move towards the second main axis; when the fourth limiting part and the fourth mating part are mated, the intermediate moving part can drive the second layer to move away from the second main axis.

[0017] As a preferred technical solution, the bottom of the fixed support frame is provided with a first leg, and there is a gap between the first leg and the intermediate moving part. The bottom of the first leg forms a sliding pair with the frame. The bottom of the floating support frame, which is always located between the second main shaft and the intermediate moving part, is provided with a second leg, and the bottom of the second leg forms a sliding pair with the frame. When the distance between the intermediate moving part and the second main shaft is at its maximum, the second leg is located at the middle position of the first telescopic protective cover. When the distance between the intermediate moving part and the second main shaft is at its maximum, the second leg is located at the middle position of the intermediate moving part and the second main shaft.

[0018] As a preferred technical solution, the first layer is provided with a fifth limiting part, and the floating support frame is provided with a fifth mating part and a sixth mating part that match the fifth limiting part. When the fifth limiting part and the fifth mating part are mated, the second main shaft can drive the floating support frame to move towards the middle moving part; when the fifth limiting part and the sixth mating part are mated, the second main shaft can drive the floating support frame to move away from the middle moving part.

[0019] As a preferred technical solution, in each of the following configurations, one is a limiting block and the other is a rubber pad: the first limiting part and the first mating part, the second limiting part and the second mating part, the third limiting part and the third mating part, the fourth limiting part and the fourth mating part, and the fifth limiting part and the fifth mating part.

[0020] As a preferred technical solution, it further includes a second telescopic protective cover and a third telescopic protective cover, the second telescopic protective cover and the third telescopic protective cover are respectively disposed on both sides of the first telescopic protective cover, and both ends of the second telescopic protective cover and the third telescopic protective cover are respectively connected to the second main shaft and the intermediate moving part.

[0021] As a preferred technical solution, it also includes a fourth telescopic protective cover and a fifth telescopic protective cover. The two ends of the fourth telescopic protective cover are respectively connected to the first main shaft and the intermediate moving part; the frame is provided with a first support frame, the second main shaft is located between the first support frame and the first main shaft, and the two ends of the fifth telescopic protective cover are respectively connected to the second main shaft and the first support frame.

[0022] As a preferred technical solution, the frame is further provided with a plurality of second support frames on one side corresponding to the second telescopic protective cover, the fourth telescopic protective cover and the fifth telescopic protective cover. The second support frame corresponding to the position of the second telescopic protective cover is provided with a third guide rail, and the second telescopic protective cover is provided with rollers or sliders corresponding to the third guide rail. The second support frame is provided with a fixed protective cover, and copper strips are provided on the fixed protective cover and at corresponding positions of the second telescopic protective cover, the fourth telescopic protective cover and the fifth telescopic protective cover.

[0023] As a preferred technical solution, the intermediate moving part is provided with a scraper strip, and the scraper strip contacts the upper surface of the second layer;

[0024] And / or, both the first guide rail and the second guide rail extend into the through hole.

[0025] As a preferred technical solution, the intermediate moving part is configured as a center frame or a lower tool holder.

[0026] The beneficial effects of this invention are as follows:

[0027] 1. The intermediate moving part of the present invention has a through hole, and a fixed support frame is disposed at the lower edge of the through hole. A first guide rail and a second guide rail are provided on the fixed support frame. One end of the floating support frame cooperates with the first guide rail, and one end of the second layer of the first telescopic protective cover cooperates with the second guide rail, so that both the floating support frame and the first telescopic protective cover can move relative to the intermediate moving part. This ensures that the floating support frame always provides support to the middle part of the first telescopic protective cover, preventing the first telescopic protective cover from becoming weak or even deformed due to excessive stretching. The structure has high strength and can easily adjust the distance between the intermediate moving part, the second spindle, and the first spindle to meet the processing requirements of different workpieces.

[0028] 2. As the intermediate moving part of the present invention approaches the second main shaft, the first limiting part cooperates with the first mating part to allow the floating support frame to move with the intermediate moving part, and the third limiting part cooperates with the third mating part to allow the second layer of the first telescopic protective cover to move with the intermediate moving part. This ensures that during the compression of the first telescopic protective cover, the floating support frame also moves accordingly without interference. Furthermore, as the intermediate moving part moves away from the second main shaft, the second limiting part cooperates with the second mating part to allow the floating support frame to move with the intermediate moving part, and the fourth limiting part cooperates with the fourth mating part to allow the second layer of the first telescopic protective cover to move accordingly. The intermediate moving part moves; furthermore, by setting the specific positions of the first limiting part, the second limiting part, the third limiting part, and the fourth limiting part on the intermediate moving part or the fixed support frame, the specific positions of the first mating part and the second mating part on the floating support frame, and the specific positions of the third mating part and the fourth mating part on the second layer of the first telescopic protective cover, it is possible to ensure that the limiting part and the mating part are stably mated, and to control the mating position and mating effect of the limiting part and the mating part, so that the floating support frame moves accordingly during the telescopic process of the first telescopic protective cover, ensuring that the floating support frame always provides stable support force to the first telescopic protective cover.

[0029] 3. The second, third, fourth, and fifth telescopic protective covers of the present invention, together with the first telescopic protective cover, form a complete cover body to achieve complete protection of the milling and turning machining area.

[0030] 4. The first telescopic protective cover of the present invention is provided with a fifth limiting part on the first layer, and the floating support frame is provided with a matching fifth mating part and a sixth mating part. When the second main shaft approaches or moves away from the intermediate moving part, the fifth limiting part cooperates with the fifth mating part and the sixth mating part respectively to enable the floating support frame to move with the second main shaft, ensuring that the floating support frame is always in a suitable position and will not cause interference. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the protective support structure for the milling and turning machining area of ​​the present invention;

[0032] Figure 2 for Figure 1 A bottom view;

[0033] Figure 3 for Figure 1 A sectional view;

[0034] Figure 4 for Figure 3 Enlarged view of region A in the middle;

[0035] Figure 5 for Figure 3 A structural schematic diagram of the floating support frame and the first telescopic protective cover;

[0036] Figure 6 for Figure 3 A schematic diagram of the structure when the second main shaft and the intermediate moving part are both far away from the first main shaft;

[0037] Figure 7 for Figure 6 Enlarged view of region B in the middle;

[0038] Figure 8 for Figure 3 A schematic diagram of the structure when the second main shaft and the intermediate moving part are both close to the first main shaft;

[0039] Figure 9 for Figure 3 A structural schematic diagram of the intermediate moving part, fixed support frame, floating support frame and first telescopic protective cover;

[0040] Figure 10 for Figure 9 A bottom view;

[0041] Figure 11 for Figure 3 A schematic diagram of the fixed support frame in the diagram;

[0042] Figure 12 for Figure 11 Front view;

[0043] Figure 13 for Figure 3 A schematic diagram of the floating support frame in the diagram;

[0044] Figure 14 for Figure 13 The front view in the image.

[0045] In the diagram: 1-Frame, 11-First spindle, 12-First support frame, 13-Second support frame, 14-Third guide rail, 15-Fixed protective cover, 2-Second spindle, 3-Intermediate moving part, 31-Through hole, 32-Second limit block, 33-Fourth limit block, 34-Scraper strip, 4-Fixed support frame, 41-First leg, 42-First guide rail, 43-Second guide rail, 44-First limit block, 45-Third limit block, 5-Floating support frame, 51-Second leg, 52-First rubber pad, 53-Second rubber pad, 54-Fifth rubber pad, 55-Sixth rubber pad, 6-First telescopic protective cover, 61-First layer, 62-Second layer, 63-Baffle, 64-Fourth rubber pad, 65-Fifth limit block, 71-Second telescopic protective cover, 72-Third telescopic protective cover, 73-Fourth telescopic protective cover, 74-Fifth telescopic protective cover. Detailed Implementation

[0046] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0047] Please refer to Figures 1-14 The present invention provides a first embodiment of a protective support structure for a milling and turning machining area, comprising a frame 1, on which a first spindle 11, a second spindle 2 and an intermediate moving part 3 are provided. The intermediate moving part 3 is located between the first spindle 11 and the second spindle 2. Both the second spindle 2 and the intermediate moving part 3 can move in a direction close to or away from the first spindle 11 (i.e., the first direction) to realize the machining of workpieces of different sizes.

[0048] The intermediate moving part 3 is provided with a through hole 31 extending in the first direction; the fixed support frame 4 is fixed on the intermediate moving part 3 and located at the lower edge of the through hole 31. One end of the fixed support frame 4 extends into the through hole 31, and the other end of the fixed support frame 4 extends away from the second main shaft 2; the bottom of the fixed support frame 4 is provided with a first leg 41. There is a gap between the first leg 41 and the intermediate moving part 3. The bottom of the first leg 41 forms a sliding pair with the frame 1. The first leg 41 can support the fixed support frame 4. When the intermediate moving part 3 drives the fixed support frame 4 to move, it ensures the stability of the fixed support frame 4 when it moves. When the floating support frame 5 and the first telescopic protective cover 6 move onto the fixed support frame 4, it ensures that the fixed support frame 4 can be stably supported.

[0049] The upper surface of the fixed support frame 4 is provided with a first guide rail 42 and a second guide rail 43 extending in a first direction; one end of the floating support frame 5 is engaged with the first guide rail 42 and can move along the first guide rail 42, the floating support frame 5 passes through the through hole 31, and the other end of the floating support frame 5 is located between the second main shaft 2 and the intermediate moving part 3. The bottom of the part of the floating support frame 5 that is always located between the second main shaft 2 and the intermediate moving part 3 is provided with a second support leg 51, the bottom of the second support leg 51 and the frame 1 form a sliding pair, and the second support leg 51 can support the floating support frame 5; the first telescopic protective cover 6 includes multiple layers that overlap in a vertical direction, the bottom layer is designated as the first layer 61, and the top layer is designated as the second layer 62; the first layer 61 is located at... Above the floating support frame 5; one end of the first layer 61 is fixedly connected to the second main shaft 2, and the end of the second layer 62 away from the second main shaft 2 is engaged with the second guide rail 43 and can move along the second guide rail 43; the top of the end of the floating support frame 5 located between the second main shaft 2 and the middle moving part 3 forms a moving pair with the bottom surface of the first layer 61. The floating support frame 5 supports the first layer 61 while providing support for the entire first telescopic protective cover 6. In particular, when the first telescopic protective cover 6 is stretched to its longest length, the second leg 51 is located in the middle position of the first telescopic protective cover 6, which can provide stable support for the first telescopic protective cover 6, ensuring that the middle support force of the first telescopic protective cover 6 will not weaken or deform when stretched, thereby improving the structural strength;

[0050] Since the intermediate moving part 3 and the fixed support frame 4 move synchronously, the first limiting part, the second limiting part, the third limiting part, and the fourth limiting part can be set on the intermediate moving part 3 or the fixed support frame 4 according to the actual situation. Correspondingly, the floating support frame 5 is provided with a first mating part that matches the first limiting part and a second mating part that matches the second limiting part. The second layer 62 of the first telescopic protective cover 6 is provided with a third mating part that matches the third limiting part and a fourth mating part that matches the fourth limiting part. When the intermediate moving part 3 moves towards the second main shaft 2, the third limiting part and the third mating part cooperate to make the second layer 62 move accordingly, so that the first telescopic protective cover 6 can move. When the cover 6 is compressed, the first limiting part and the first cooperating part cooperate to move the floating support frame 5 to a suitable position without interfering with the compression of the first telescopic protective cover 6. Correspondingly, when the intermediate moving part 3 moves away from the second main shaft 2, the fourth limiting part and the fourth cooperating part cooperate to move the second layer 62, causing the first telescopic protective cover 6 to stretch. At the same time, the second limiting part and the second cooperating part cooperate to move the floating support frame 5. When the first telescopic protective cover 6 is stretched to its longest length, the second leg 51 is located in the middle position of the first telescopic protective cover 6, stably supporting the first telescopic protective cover 6 and ensuring the structural strength of the first telescopic protective cover 6.

[0051] It should be noted that, Figure 3 The second main shaft 2 and the intermediate moving part 3 are at the farthest distance. Figure 6 The second main shaft 2 and the intermediate moving part 3 are at the minimum distance and are both far away from the first main shaft 11. Figure 8 The second main shaft 2 and the intermediate moving part 3 are at the minimum distance and are both close to the first main shaft 11; for easy distinction, in Figure 1 , Figures 3-8 In the diagram, the first telescopic protective cover 6 is represented by a green line, the floating support frame 5 by a red line, and the fixed support frame 4 by a blue line.

[0052] In actual production, the intermediate moving part 3 can be directly set as the center rest or lower tool post on the milling and turning machining center; the moving pair between the bottom of the first leg 41 and the frame 1, the moving pair between the bottom of the second leg 51 and the frame 1, and the moving pair between the top of the floating support frame 5 and the bottom surface of the first layer 61 can all be set as rollers, that is, rollers can be set at the bottom of the first leg 41, the bottom of the second leg 51, and the top of the floating support frame 5 respectively.

[0053] Specifically, please refer to Figure 3 and Figure 6 The present invention is by Figure 3 State transition in Figure 6In the middle state, the intermediate moving part 3 moves towards the direction of the second main shaft 2; wherein, the third limiting part is a third limiting block 45 at the end of the fixed support frame 4 away from the second main shaft 2, and the third mating part is a baffle 63 at the end of the second layer 62 near the first main shaft 11. When the baffle 63 abuts against the third limiting block 45, the fixed support frame 4 on the intermediate moving part 3 can drive the second layer 62 to move towards the direction of the second main shaft 2, so that the first telescopic protective cover 6 is compressed; and the first limiting part is a first limiting block 44 at the end of the fixed support frame 4 near the second main shaft 2, and the first mating part is a first rubber pad 52 at the end of the floating support frame 5 near the second main shaft 2. When the first rubber pad 52 abuts against the first limiting block 44, the fixed support frame 4 on the intermediate moving part 3 can drive the floating support frame 5 to move towards the direction of the second main shaft 2, without interfering with the compression of the first telescopic protective cover 6.

[0054] Further, please refer to Figure 3 , Figure 6 , Figure 10 and Figure 13 The present invention is by Figure 6 State transition in Figure 3 In the intermediate state, the intermediate moving part 3 moves away from the second main shaft 2; wherein, the fourth limiting part is a fourth limiting block 33 inside the through hole 31 of the intermediate moving part 3, and the fourth mating part is a fourth rubber pad 64 at one end of the second layer 62 near the first main shaft 11. When the fourth rubber pad 64 abuts against the fourth limiting block 33, the intermediate moving part 3 can drive the second layer 62 to move away from the second main shaft 2, so that the first telescopic protective cover 6 is stretched. Specifically, since the second layer 62 has a vertically arranged... The baffle 63 and the fourth rubber pad 64 can be directly set on the side of the baffle 63 facing the second main shaft 2; and the second limiting part is set as the second limiting block 32 on the intermediate moving part 3, and the second mating part is set as the second rubber pad 53 on the upper surface of the floating support frame 5 near the first main shaft 11. When the second rubber pad 53 abuts against the second limiting block 32, the intermediate moving part 3 can drive the floating support frame 5 to move away from the second main shaft 2, stably supporting the first telescopic protective cover 6 while not hindering the stretching of the first telescopic protective cover 6.

[0055] In this embodiment, please refer to Figure 4 , Figure 7 and Figure 9 The intermediate moving part 3 is provided with a scraper strip 34, which contacts the upper surface of the second layer 62. The scraper tongue of the scraper strip 34 is preferably made of rubber and has a certain amount of compression, which can prevent iron filings from being brought in when the second layer 62 of the first telescopic protective cover 6 is continuously inserted into the through hole 31 of the intermediate moving part 3.

[0056] It should be noted that, due to the friction between the scraper strip 34 and the second layer 62, when the friction between the scraper strip 34 and the second layer 62 is greater than the friction between the second layer 62 and the first layer 61, the relative movement between the second layer 62 and the first layer 61 will occur earlier than the relative movement between the second layer 62 and the scraper strip 34 during the deformation of the first telescopic protective cover 6; conversely, when the friction between the scraper strip 34 and the second layer 62 is less than the friction between the second layer 62 and the first layer 61, the relative movement between the second layer 62 and the scraper strip 34 will occur earlier. The movement will occur earlier than the relative movement between the second layer 62 and the first layer 61; the above two situations will affect the coordination time between the third limiting part and the third mating part, and between the fourth limiting part and the fourth mating part, that is, affect the specific deformation process of the first telescopic protective cover 6 before the third limiting part and the third mating part, and between the fourth limiting part and the fourth mating part, are coordinated. However, as the third limiting part and the third mating part, and the fourth limiting part and the fourth mating part, are coordinated, they will eventually maintain the same shape when the first telescopic protective cover 6 is fully stretched or compressed, that is, it will not affect the protective effect of the first telescopic protective cover 6.

[0057] Further, please refer to Figure 3 , Figure 4 , Figure 6 , Figure 8 and Figure 9 The first guide rail 42 and the second guide rail 43 both extend into the through hole 31, so as to facilitate their cooperation with the second layer 62 of the floating support frame 5 and the first telescopic protective cover 6, respectively. More preferably, one end of the first guide rail 42 and the second guide rail 43 both extend to the end of the through hole 31 near the second main shaft 2, so that the floating support frame 5 and the first telescopic protective cover 6 can be more conveniently cooperated with the first guide rail 42 and the second guide rail 43, respectively.

[0058] In this embodiment, please refer to Figure 3 and Figure 8 The first layer 61 is provided with a fifth limiting part, and the floating support frame 5 is provided with a fifth mating part and a sixth mating part that match the fifth limiting part. When the fifth limiting part and the fifth mating part are mated, the second main shaft 2 can drive the floating support frame 5 to move towards the middle moving part 3; when the fifth limiting part and the sixth mating part are mated, the second main shaft 2 can drive the floating support frame 5 to move away from the middle moving part 3.

[0059] Specifically, please refer to Figure 3 , Figure 4 , Figure 8 , Figure 11 and Figure 13 The present invention is by Figure 3 State transition in Figure 8In the middle state, the second main shaft 2 moves towards the middle moving part 3; wherein, the fifth limiting part is a fifth limiting block 65 provided at the bottom surface of the first layer 61 of the first telescopic protective cover 6, the fifth mating part and the sixth mating part are respectively provided on the fifth rubber pad 54 and the sixth rubber pad 55 on the upper surface of the floating support frame 5, and the fifth limiting block 65 is located between the fifth rubber pad 54 and the sixth rubber pad 55. During the process of the second main shaft 2 moving towards the middle moving part 3, when the fifth limiting block 65 abuts against the fifth rubber pad 54, the first layer 61 fixed on the second main shaft 2 can drive the floating support frame 5 to move towards the middle moving part 3. At the same time, when the baffle 63 abuts against the third limiting block 45, the first telescopic protective cover 6 is compressed under the limitation of the fixed support frame 4; accordingly, the present invention is composed of Figure 8 State transition in Figure 3 In the state in which the second main shaft 2 moves away from the middle moving part 3, when the fifth limiting block 65 abuts against the sixth rubber pad 55, the first layer 61 fixed on the second main shaft 2 can drive the floating support frame 5 to move away from the middle moving part 3, so that the floating support frame 5 moves with the second main shaft 2. At the same time, when the fourth rubber pad 64 abuts against the fourth limiting block 33, the first telescopic protective cover 6 is stretched under the limitation of the middle moving part 3.

[0060] It should be noted that in each of the following sections, one is a limiting block and the other is a rubber pad, which is used to prevent abnormal noise from occurring during high-speed operation when the rubber pad and the limiting block are engaged.

[0061] In this embodiment, please refer to Figure 1 The present invention also includes a second telescopic protective cover 71 and a third telescopic protective cover 72. The second telescopic protective cover 71 and the third telescopic protective cover 72 are respectively disposed on both sides of the first telescopic protective cover 6. Both ends of the second telescopic protective cover 71 and the third telescopic protective cover 72 are respectively connected to the second main shaft 2 and the intermediate moving part 3. The second telescopic protective cover 71, the first telescopic protective cover 6 and the third telescopic protective cover 72 together form a complete cover, which can effectively protect the area between the second main shaft 2 and the intermediate moving part 3.

[0062] Further, please refer to Figure 1The present invention also includes a fourth telescopic protective cover 73 and a fifth telescopic protective cover 74. The two ends of the fourth telescopic protective cover 73 are respectively connected to the first main shaft 11 and the intermediate moving part 3. The fourth telescopic protective cover 73 can extend and retract accordingly with the distance between the first main shaft 11 and the intermediate moving part 3 to provide protection. The frame 1 is provided with a first support frame 12, and the second main shaft 2 is located between the first support frame 12 and the first main shaft 11. The two ends of the fifth telescopic protective cover 74 are respectively connected to the second main shaft 2 and the first support frame 12. The fifth telescopic protective cover 74 can extend and retract accordingly with the distance between the first support frame 12 and the second main shaft 2 to provide protection.

[0063] Furthermore, please refer to Figure 1 and Figure 5 On the frame 1, a number of second support frames 13 are provided on one side corresponding to the second telescopic protective cover 71, the fourth telescopic protective cover 73 and the fifth telescopic protective cover 74. A third guide rail 14 is provided on the second support frame 13 corresponding to the position of the second telescopic protective cover 71. Rollers or sliders are provided on the second telescopic protective cover 71 corresponding to the third guide rail 14 to realize the smooth extension and retraction of the second telescopic protective cover 71.

[0064] Additionally, please refer to Figure 1 and Figure 5 The second support frame 13 is also equipped with a fixed protective cover 15. Copper strips are provided on the fixed protective cover 15 and at corresponding positions of the second telescopic protective cover 71, the fourth telescopic protective cover 73 and the fifth telescopic protective cover 74. The copper strips on the fixed protective cover 15 overlap with the copper strips on the telescopic protective cover, providing auxiliary support while achieving mechanical sealing.

[0065] It should be noted that the telescopic protective cover, the fixed protective cover 15, and the support frame are preferably made of steel.

[0066] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations; any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A protective support structure for a milling and turning machining area, characterized in that, include: A frame (1) is provided with a first spindle (11). The second spindle (2) is mounted on the frame (1) and can move along a first direction, which is the direction that is close to or away from the first spindle (11). An intermediate moving part (3) is located between the first main shaft (11) and the second main shaft (2), and the intermediate moving part (3) is capable of moving along the first direction; the intermediate moving part (3) is provided with a through hole (31) extending along the first direction. A fixed support frame (4) is fixed on the intermediate moving part (3) and located at the lower edge of the through hole (31). One end of the fixed support frame (4) extends into the through hole (31), and the other end of the fixed support frame (4) extends away from the second main shaft (2). A first guide rail (42) and a second guide rail (43) extending along the first direction are provided on the upper surface of the fixed support frame (4). A floating support frame (5) is provided. One end of the floating support frame (5) is engaged with the first guide rail (42) and can move along the first guide rail (42). The floating support frame (5) passes through the through hole (31). The other end of the floating support frame (5) is located between the second main shaft (2) and the intermediate moving part (3). The first telescopic protective cover (6) comprises multiple layers stacked vertically, with the bottom layer being the first layer (61) and the top layer being the second layer (62). The first layer (61) is located above the floating support frame (5). One end of the first layer (61) is fixedly connected to the second main shaft (2), and the second layer (62) cooperates with the second guide rail (43) to move along the second guide rail (43). The top of the floating support frame (5) forms a sliding pair with the bottom surface of the first layer (61). During the process of the middle moving part (3) moving away from the second main shaft (2), the first telescopic protective cover (6) is stretched, and the floating support frame (5) moves to provide support for the first telescopic protective cover (6). During the process of the middle moving part (3) moving closer to the second main shaft (2), the first telescopic protective cover (6) is compressed, and the movement of the floating support frame (5) does not cause interference.

2. The protective support structure for the milling and turning machining area according to claim 1, characterized in that, The intermediate moving part (3) or the fixed support frame (4) is provided with a first limiting part, a second limiting part, a third limiting part and a fourth limiting part; The floating support frame (5) is provided with a first mating part that matches the first limiting part and a second mating part that matches the second limiting part. When the first limiting part and the first mating part are mated, the intermediate moving part (3) can drive the floating support frame (5) to move closer to the second main shaft (2); when the second limiting part and the second mating part are mated, the intermediate moving part (3) can drive the floating support frame (5) to move away from the second main shaft (2). The second layer (62) is provided with a third mating part that matches the third limiting part and a fourth mating part that matches the fourth limiting part. When the third limiting part and the third mating part are mated, the intermediate moving part (3) can drive the second layer (62) to move closer to the second main shaft (2). When the fourth limiting part and the fourth mating part are mated, the intermediate moving part (3) can drive the second layer (62) to move away from the second main shaft (2).

3. A protective support structure for a milling and turning machining area according to claim 1 or 2, characterized in that, The bottom of the fixed support frame (4) is provided with a first leg (41), and there is a gap between the first leg (41) and the intermediate moving part (3). The bottom of the first leg (41) forms a sliding pair with the frame (1). The bottom of the floating support frame (5) which is always located between the second main shaft (2) and the intermediate moving part (3) is provided with a second leg (51), and the bottom of the second leg (51) forms a sliding pair with the frame (1). When the distance between the intermediate moving part (3) and the second main shaft (2) is the largest, the second leg (51) is located at the middle position of the first telescopic protective cover (6).

4. The protective support structure for the milling and turning machining area according to claim 2, characterized in that, The first layer (61) is provided with a fifth limiting part, and the floating support frame (5) is provided with a fifth mating part and a sixth mating part that match the fifth limiting part. When the fifth limiting part and the fifth mating part are mated, the second main shaft (2) can drive the floating support frame (5) to move closer to the middle moving part (3); when the fifth limiting part and the sixth mating part are mated, the second main shaft (2) can drive the floating support frame (5) to move away from the middle moving part (3).

5. The protective support structure for the milling and turning machining area according to claim 4, characterized in that, In each of the following configurations, one is a limiting block and the other is a rubber pad: the first limiting part and the first mating part, the second limiting part and the second mating part, the third limiting part and the third mating part, the fourth limiting part and the fourth mating part, and the fifth limiting part and the fifth mating part.

6. The protective support structure for the milling and turning machining area according to claim 1, characterized in that, It also includes a second telescopic protective cover (71) and a third telescopic protective cover (72), the second telescopic protective cover (71) and the third telescopic protective cover (72) are respectively disposed on both sides of the first telescopic protective cover (6), and both ends of the second telescopic protective cover (71) and the third telescopic protective cover (72) are respectively connected to the second main shaft (2) and the intermediate moving part (3).

7. The protective support structure for the milling and turning machining area according to claim 6, characterized in that, It also includes a fourth telescopic protective cover (73) and a fifth telescopic protective cover (74). The two ends of the fourth telescopic protective cover (73) are respectively connected to the first main shaft (11) and the intermediate moving part (3); the frame (1) is provided with a first support frame (12), the second main shaft (2) is located between the first support frame (12) and the first main shaft (11), and the two ends of the fifth telescopic protective cover (74) are respectively connected to the second main shaft (2) and the first support frame (12).

8. The protective support structure for the milling and turning machining area according to claim 7, characterized in that, The frame (1) is provided with several second support frames (13) on one side corresponding to the second telescopic protective cover (71), the fourth telescopic protective cover (73) and the fifth telescopic protective cover (74). The second support frame (13) corresponding to the position of the second telescopic protective cover (71) is provided with a third guide rail (14). The second telescopic protective cover (71) is provided with a roller or slider corresponding to the third guide rail (14). The second support frame (13) is provided with a fixed protective cover (15). The fixed protective cover (15) and the corresponding positions of the second telescopic protective cover (71), the fourth telescopic protective cover (73) and the fifth telescopic protective cover (74) are all provided with copper strips.

9. The protective support structure for the milling and turning machining area according to claim 1, characterized in that, The intermediate moving part (3) is provided with a scraper (34), and the scraper (34) is in contact with the upper surface of the second layer (62); And / or, both the first guide rail (42) and the second guide rail (43) extend into the through hole (31).

10. A protective support structure for a milling and turning machining area according to claim 1, characterized in that, The intermediate moving part (3) is set as a center frame or a lower tool holder.

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