Shaft part extension supporting structure for numerical control machine tool

Abstract

The utility model discloses a shaft part extension supporting structure for a numerical control machine tool, which belongs to the technical field of numerical control machine tools, and is characterized by comprising a mounting frame, a plurality of groups of displacement components are slidably connected in the mounting frame, and the top of each displacement component is fixedly connected with a lifting component. Through sliding of the displacement block in the mounting frame, the position of the supporting frame in the transverse direction can be rapidly changed, so that personalized supporting layout can be conducted according to shaft workpieces of different lengths and different shapes, and the overall universality and applicability are effectively improved; the lifting assembly can achieve independent and high-precision height adjustment of each supporting frame, no matter shaft workpieces with special shapes such as stepped shafts with multiple steps or conical shafts are machined, the supporting frames can be tightly attached to the shaft faces by independently adjusting the heights of the supporting frames, stable and reliable supporting is provided, and the machining efficiency is improved. And the machining adaptability to shaft workpieces with complex shapes is obviously improved.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, and in particular to an extension support structure for shaft components used in CNC machine tools. Background Technology

[0002] With its advantages of high precision and high efficiency, CNC machine tools have become the core equipment for machining shaft parts. With the booming development of industries such as aerospace, automobile manufacturing, and heavy machinery, the demand for long shaft parts continues to rise. These parts generally have the characteristics of large length-to-diameter ratio and strict precision requirements. During the machining process, when the overhang length of the shaft part exceeds the effective support range of the machine tool spindle and chuck, it is prone to bending deformation and vibration under the action of cutting force, gravity and other external forces due to its insufficient rigidity. This leads to a significant decrease in machining accuracy and seriously restricts the improvement of production efficiency and product quality.

[0003] Traditional support structures typically have a fixed support range, making it difficult to flexibly adjust according to the actual length of shaft-type workpieces. When machining shaft-type parts of different specifications, it is often necessary to replace them with special support fixtures or perform complex reassemblies, which is not only time-consuming and labor-intensive but also prone to introducing human error, greatly reducing machining efficiency. Furthermore, traditional support structures usually adopt a fixed height design or require cumbersome manual adjustment mechanisms, making it impossible to quickly and accurately adapt to variable diameter shaft-type parts, and also difficult to meet the needs of differentiated support height adjustment in multi-process composite machining.

[0004] Therefore, an extended support structure for shaft components in CNC machine tools is proposed. Utility Model Content

[0005] The purpose of this utility model is to provide an extended support structure for shaft parts in CNC machine tools. This structure solves the problem that the support range of existing support structures is usually fixed, making it difficult to flexibly adjust according to the actual length of the shaft workpiece. When machining shaft parts of different specifications, it is often necessary to replace special support fixtures or perform complex reassemblies, which is not only time-consuming and labor-intensive, but also prone to human error, greatly reducing machining efficiency. Furthermore, traditional support structures usually adopt a fixed height design or require cumbersome manual adjustment mechanisms, which cannot quickly and accurately adapt to shaft parts with variable diameters, and also cannot meet the problem of different adjustment requirements for support height in multi-process composite machining.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an extension support structure for shaft components of CNC machine tools, including a mounting frame, wherein multiple sets of displacement components are slidably connected inside the mounting frame, and a lifting component is fixedly connected to the top of the displacement components, wherein the lifting component includes an adjustment seat;

[0007] The displacement assembly includes a displacement block slidably connected inside a mounting frame. A through hole is provided on the front side of the mounting frame, and a connecting block is slidably connected inside the through hole and fixedly connected to the front side of the displacement block. A positioning plate is fixedly connected to the front side of the connecting block, and a pin passes through the interior of the positioning plate. A limiting groove for cooperating with the pin is provided on the front side of the mounting frame, and a pull plate is fixedly connected to the front side of the pin. A return spring is fixedly connected between the pull plate and the opposite side of the positioning plate, and the return spring is sleeved on the surface of the pin.

[0008] Preferably, the adjusting seat is fixedly connected to the top of the displacement block, and mounting slots are provided on both sides of the adjusting seat. A bidirectional screw is rotatably connected inside the left mounting slot, and a sliding rod is fixedly connected inside the right mounting slot.

[0009] Preferably, both ends of the surface of the bidirectional screw are threaded with threaded sleeves, and the surface of the slide bar is slidably connected with a slider. Both the threaded sleeves and the slider are used in conjunction with the mounting groove.

[0010] Preferably, both the screw sleeve and the slider are rotatably connected to a rotating rod on their outer sides, and the other end of the rotating rod is rotatably connected to a top plate.

[0011] Preferably, a support frame is fixedly connected to the top of the top plate, and the support frame is U-shaped and its inner wall is made of rubber.

[0012] Preferably, guide rods are fixedly connected to both the interior of the mounting frame and the interior of the through hole, and the displacement block and the connecting block are slidably connected to the surface of the guide rods.

[0013] Preferably, a micro servo motor is fixedly connected to the front side of the adjustment seat, and a controller is fixedly connected to the front side of the mounting frame. The micro servo motor and the controller are electrically connected.

[0014] Preferably, both sides of the mounting frame are fixedly connected to fixed supports, and the fixed supports have bolt holes inside.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This application, by setting a displacement component, allows the displacement block to slide within the mounting frame, enabling the support frame to quickly change its lateral position. When actually processing shaft-type workpieces of different lengths, the operator only needs to pull the pull plate to disengage the pin from the limiting groove, allowing the displacement block to slide freely and adjust the support frame to the appropriate support point position. This enables personalized support layouts for shaft-type workpieces of different lengths and shapes, effectively improving overall versatility and applicability.

[0017] 2. This application incorporates a lifting assembly that enables independent and high-precision height adjustment of each support frame. This allows for quick and flexible height adjustment of the support frames, easily adapting to different diameter segments of shaft-type workpieces. Whether machining stepped shafts with multiple steps or shaft-type workpieces with special shapes such as tapered shafts, the height of each support frame can be independently adjusted to ensure a tight fit between the support frame and the shaft surface, providing stable and reliable support and significantly improving the adaptability to machining complex-shaped shaft-type workpieces. Attached Figure Description

[0018] Figure 1 This is an overall structural diagram of the shaft extension support structure for CNC machine tools according to the present invention;

[0019] Figure 2 This utility model Figure 1 Top view;

[0020] Figure 3 This is a schematic diagram showing the connection between the displacement component and the lifting component of this utility model;

[0021] Figure 4 This is a schematic diagram of the displacement component of this utility model;

[0022] Figure 5 This is a schematic diagram of the lifting component of this utility model.

[0023] In the diagram, 1. Mounting frame; 2. Displacement assembly; 201. Displacement block; 202. Connecting block; 203. Positioning plate; 204. Pin; 205. Pull plate; 206. Reset spring; 3. Lifting assembly; 301. Adjusting seat; 302. Bidirectional screw; 303. Slide rod; 304. Screw sleeve; 305. Slider; 306. Rotating rod; 307. Top plate; 308. Support frame; 4. Through hole; 5. Limiting groove; 6. Mounting groove; 7. Guide rod; 8. Micro servo motor; 9. Controller; 10. Fixed support; 11. Bolt hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-5 The present invention provides the following technical solution:

[0026] An extended support structure for shaft components in CNC machine tools includes a mounting frame 1. Multiple sets of displacement components 2 are slidably connected inside the mounting frame 1. A lifting component 3 is fixedly connected to the top of the displacement component 2. The lifting component 3 includes an adjustment seat 301.

[0027] The displacement assembly 2 includes a displacement block 201, which is slidably connected inside the mounting frame 1. A through hole 4 is provided on the front side of the mounting frame 1. A connecting block 202 is slidably connected inside the through hole 4 and is fixedly connected to the front side of the displacement block 201. A positioning plate 203 is fixedly connected to the front side of the connecting block 202. A pin 204 passes through the interior of the positioning plate 203. A limiting groove 5 that cooperates with the pin 204 is provided on the front side of the mounting frame 1. A pull plate 205 is fixedly connected to the front side of the pin 204. A reset spring 206 is fixedly connected between the pull plate 205 and the opposite side of the positioning plate 203. The reset spring 206 is sleeved on the surface of the pin 204.

[0028] In this embodiment: by setting up the displacement component 2, the displacement block 201 serves as the core carrier of the displacement component 2, and can slide directly inside the mounting frame 1, supporting and driving the upper lifting component 3 to move synchronously. The connecting block 202 can connect the displacement block 201 to the external positioning plate 203, transmitting the movement of the displacement block 201 to the positioning plate 203, realizing internal and external linkage. The through hole 4 can provide a sliding channel for the connecting block 202, while restricting its movement trajectory to ensure the synchronization of the displacement block 201 and the positioning plate 203. The positioning plate 203 serves as the support structure for the pin 204, and the pin 204 can connect with the limiting groove 5. To achieve position locking, when the pin 204 is inserted into the limiting groove 5, the position of the displacement block 201 can be locked. When it is pulled out, the locking can be released, allowing the displacement block 201 to slide. The limiting groove 5 is linearly arranged on the front side of the mounting frame 1, which can provide multiple positioning points and allow the displacement block 201 to be locked in different positions. Thus, the support position can be flexibly adjusted according to the actual support requirements of the shaft workpiece. By pulling the pull plate 205, the pin 204 can be disengaged from the limiting groove 5 and the locking state can be released. The reset spring 206 can provide restoring force. After the pull plate 205 is released, the pin 204 is automatically pulled back to the limiting groove 5, achieving quick locking.

[0029] Specifically, such as Figure 5 As shown, the adjusting seat 301 is fixedly connected to the top of the displacement block 201. The adjusting seat 301 has mounting slots 6 on both sides. The left mounting slot 6 is rotatably connected to a bidirectional screw 302, and the right mounting slot 6 is fixedly connected to a sliding rod 303.

[0030] Specifically, such as Figure 5 As shown, both ends of the surface of the bidirectional screw 302 are threaded with screw sleeves 304, and the surface of the slide bar 303 is slidably connected with a slider 305. Both the screw sleeves 304 and the slider 305 are used in conjunction with the mounting groove 6.

[0031] Specifically, such as Figure 5 As shown, a rotating rod 306 is rotatably connected to the outer side of both the screw sleeve 304 and the slider 305, and a top plate 307 is rotatably connected to the other end of the rotating rod 306.

[0032] Specifically, such as Figure 5 As shown, a support frame 308 is fixedly connected to the top of the top plate 307. The support frame 308 is U-shaped and its inner wall is made of rubber.

[0033] In this embodiment: With the above configuration, the adjusting seat 301 serves as the basic frame of the lifting assembly 3, supporting the entire assembly. Horizontal adjustment is achieved via the displacement block 201. The mounting slot 6 accommodates the bidirectional screw 302 and the sliding rod 303, providing movement space for the transmission components. When the bidirectional screw 302 rotates, it drives the two side sleeves 304 to move synchronously towards or away from each other. The sleeves 304 can drive the top plate 307 to rise and fall via the rotating rod 306. The sliding rod 303 provides guidance, ensuring that the slider 305 moves synchronously with the sleeves 304, allowing the top plate 307 to rise and fall smoothly. When the bidirectional screw 302 rotates, causing the screw sleeves 304 to move in opposite directions, the movement of the screw sleeves 304 will drive the rotating rod 306 to rotate, thereby pushing the top plate 307 to rise, and vice versa. The top plate 307 can support and transmit the load of the support frame 308, ensuring a smooth lifting process. The U-shaped support frame 308 provides an open support groove, which facilitates the horizontal placement and removal of shaft parts, thereby adapting to shaft parts of different diameters. Its rubber inner wall can reduce the vibration of shaft parts during processing, avoid surface damage caused by rigid contact, and at the same time prevent the shaft parts from sliding during the support process, improving positioning accuracy.

[0034] Specifically, such as Figure 1 , Figure 2 As shown, guide rods 7 are fixedly connected inside the mounting frame 1 and the through hole 4, and displacement block 201 and connecting block 202 are slidably connected to the surface of guide rods 7.

[0035] Specifically, such as Figure 1 , Figure 3 As shown, a micro servo motor 8 is fixedly connected to the front side of the adjustment seat 301, and a controller 9 is fixedly connected to the front side of the mounting frame 1. The micro servo motor 8 and the controller 9 are electrically connected.

[0036] Specifically, such as Figure 2 As shown, both sides of the mounting frame 1 are fixedly connected to fixed supports 10, and the fixed supports 10 have bolt holes 11 inside.

[0037] In this embodiment: Through the above settings, the guide rod 7 inside the mounting frame 1 can ensure that the displacement component 2 moves horizontally in a straight line, and the guide rod 7 inside the through hole 4 can ensure that the connecting block 202 moves in a straight line, thereby ensuring that the displacement component 2, the lifting component 3, and the support frame 308 can always move in a straight line, ensuring the stability of the displacement process. The micro servo motor 8 can precisely control the bidirectional screw 302 to rotate forward or backward, thereby achieving precise adjustment of the lifting of the top plate 307. The start, stop, speed, and direction of the servo motor can be controlled by the operation controller 9, thereby ensuring the adjustment accuracy and automated operation of the lifting component 3. The fixed support 10 can be bolted to the top of the CNC machine tool worktable through the bolt hole 11, thereby transmitting the load of the support frame 308 and further improving the overall stability of the support structure.

[0038] Working principle: First, the fixed support 10 is installed on the top of the CNC machine tool worktable using bolts, so that the mounting frame 1 can be placed stably. Then, the pull plate 205 is pulled outward, causing the pin 204 to disengage from the limiting groove 5, unlocking the displacement block 201. Then, according to the length of the shaft workpiece and the support requirements, each displacement block 201 is slid along the guide rod 7 to the target position. After that, the pull plate 205 is released, and the reset tension of the reset spring 206 will drive the pin 204 to insert into the corresponding limiting groove 5, thereby locking the position and forming a multi-point support layout. Then, the micro servo motor 8 is started by the controller 9. The micro servo motor 8 will drive the bidirectional screw 302 to rotate. The bidirectional screw 302 will drive the screw sleeve 304 to move in opposite directions. Then, the horizontal movement is converted into the vertical lifting and lowering of the top plate 307 by the rotating rod 306. When the top plate 307 lifts and lowers, it will drive the support frame 308 to lift and lower together until the preset height is reached. Finally, the U-shaped inner walls of all support frames 308 are flush, ensuring that the shaft-type workpiece can be placed horizontally inside, thus completing the effective support of the shaft-type workpiece.

[0039] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A shaft extension support structure for CNC machine tools, comprising a mounting frame (1), characterized in that: The mounting frame (1) has multiple sets of displacement components (2) slidably connected inside. The top of the displacement components (2) is fixedly connected to a lifting component (3), which includes an adjustment seat (301). The displacement component (2) includes a displacement block (201), which is slidably connected inside the mounting frame (1). The mounting frame (1) has a through hole (4) on its front side. A connecting block (202) is slidably connected inside the through hole (4) and the connecting block (202) is fixedly connected to the front side of the displacement block (201). A positioning plate (203) is fixedly connected to the front side of the connecting block (202). A pin (204) passes through the interior of the positioning plate (203). A limiting groove (5) that cooperates with the pin (204) is opened on the front side of the mounting frame (1). A pull plate (205) is fixedly connected to the front side of the pin (204). A reset spring (206) is fixedly connected between the pull plate (205) and the opposite side of the positioning plate (203). The reset spring (206) is sleeved on the surface of the pin (204).

2. The shaft extension support structure for CNC machine tools according to claim 1, characterized in that: The adjusting seat (301) is fixedly connected to the top of the displacement block (201). The adjusting seat (301) has mounting slots (6) on both sides. A bidirectional screw (302) is rotatably connected inside the left mounting slot (6), and a slide rod (303) is fixedly connected inside the right mounting slot (6).

3. The shaft extension support structure for CNC machine tools according to claim 2, characterized in that: Both ends of the surface of the bidirectional screw (302) are threaded with screw sleeves (304), and the surface of the slide rod (303) is slidably connected with a slider (305). The screw sleeves (304) and the slider (305) are used in conjunction with the mounting groove (6).

4. The shaft extension support structure for CNC machine tools according to claim 3, characterized in that: The outer sides of the threaded sleeve (304) and the slider (305) are rotatably connected to a rotating rod (306), and the other end of the rotating rod (306) is rotatably connected to a top plate (307).

5. The shaft extension support structure for CNC machine tools according to claim 4, characterized in that: The top of the top plate (307) is fixedly connected to a support frame (308), the support frame (308) is U-shaped and the inner wall of the support frame (308) is made of rubber.

6. The shaft extension support structure for CNC machine tools according to claim 1, characterized in that: Guide rods (7) are fixedly connected inside the mounting frame (1) and the through hole (4), and the displacement block (201) and the connecting block (202) are slidably connected to the surface of the guide rods (7).

7. The shaft extension support structure for CNC machine tools according to claim 1, characterized in that: A micro servo motor (8) is fixedly connected to the front side of the adjustment seat (301), and a controller (9) is fixedly connected to the front side of the mounting frame (1). The micro servo motor (8) and the controller (9) are electrically connected.

8. The shaft extension support structure for CNC machine tools according to claim 1, characterized in that: Both sides of the mounting frame (1) are fixedly connected to fixed supports (10), and the fixed supports (10) have bolt holes (11) inside.

Images