Machine tool spindle with stroke adjusting mechanism

Abstract

The utility model discloses a machine tool spindle with a stroke adjusting mechanism, and relates to the technical field of machine tool spindles. Comprising a driving shaft, a clamping sleeve and a connecting pipe are arranged in the driving shaft, the connecting pipe slides in the driving shaft, the clamping sleeve is arranged at one end of the driving shaft and connected with the connecting pipe, and a shifting fork is slidably connected to the outer side of the connecting pipe; the adjusting structure is arranged on the outer side of the connecting pipe and used for controlling the stroke of the connecting pipe, and the adjusting structure comprises a moving part and a positioning part. Through the arrangement of the moving piece and the positioning piece, the rotating ring, the extrusion ring, the pressing plate, the moving groove, the positioning ring, the sliding rod, the adjusting block and the limiting rod are matched, so that the rotating angle of the moving ring is limited in the using process, and the situation that the rotating angle of the rotating ring is difficult to accurately control in the manual rotating process is avoided; therefore, the clamping force cannot reach an expected numerical value, and the stability of workpiece clamping is ensured.

Description

Technical Field

[0001] This utility model relates to the field of machine tool spindle technology, specifically to a machine tool spindle with a stroke adjustment mechanism. Background Technology

[0002] The machine tool spindle is the shaft that drives the workpiece or tool to rotate on the machine tool. It is one of the core components of the machine tool. Lever clamping spindle is a method used to clamp the spindle in machine tools. It is commonly used in various processing equipment that requires high precision and reliable clamping.

[0003] When adjusting the clamping force of a lever-clamping spindle, the clamping force is often adjusted by moving the moving ring. During the movement of the moving ring, the rotation of the rotating ring is mostly manually controlled. In actual use, it is difficult to accurately control the rotation angle of the rotating ring during manual rotation, which causes the clamping force to fail to reach the expected value, thus affecting the stability of workpiece clamping. Therefore, a machine tool spindle with a stroke adjustment mechanism is proposed. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the rotation angle of the rotating ring is difficult to control accurately during manual rotation, resulting in the clamping force not reaching the expected value and thus affecting the stability of workpiece clamping. This invention provides a machine tool spindle with a stroke adjustment mechanism.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A machine tool spindle with a stroke adjustment mechanism, comprising:

[0007] A drive shaft, wherein a sleeve and a connecting tube are respectively provided inside the drive shaft, the connecting tube slides inside the drive shaft, the sleeve is provided at one end of the drive shaft and is connected to the connecting tube, and a shift fork is slidably connected to the outside of the connecting tube;

[0008] An adjustment structure is provided on the outside of the connecting tube to control the stroke of the connecting tube. The adjustment structure includes a moving part and a positioning part. The moving part is provided on the outside of the connecting tube to control the movement range of the shift fork. The positioning part is provided on the outside of the moving part to position the moving part. The moving part works with the positioning part to adjust the movement distance of the connecting tube.

[0009] Furthermore, a pulley is also provided on the outer side of the drive shaft.

[0010] Furthermore, the moving component includes multiple moving rings, which are screwed to the connecting pipe and distributed on both sides of the shift fork. One end of each moving ring has a connecting groove, and multiple pressure plates are provided inside the connecting groove. A compression ring is provided inside the connecting groove and is screwed to the connecting groove. Multiple moving grooves are provided on the outer side of each moving ring.

[0011] Furthermore, the positioning component includes a positioning ring, and the positioning ring has a sliding rod on the side opposite to the moving ring. There are multiple sliding rods, and each sliding rod corresponds to a moving groove. The sliding rod slides inside the moving groove. An adjusting block is provided on the outside of the sliding rod. A limiting rod is threadedly connected inside the positioning ring, and the axis of the limiting rod is perpendicular to the axis of the positioning ring. An annular groove is opened on the side of the positioning ring opposite to the sliding rod. A connecting block is slidably connected inside the annular groove, and the connecting block is connected to the sliding rod.

[0012] Furthermore, the limiting rod is also provided with a barrier pad relative to the end of the connecting pipe.

[0013] Furthermore, a rotating ring is also provided on the outer side of the extrusion ring.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention, through the design of moving and positioning components, achieves the coordination of a rotating ring, a pressing ring, a pressure plate, a moving groove, a positioning ring, a sliding rod, an adjusting block, and a limiting rod. This limits the rotation angle of the moving ring during use, preventing the difficulty in accurately controlling the rotation angle of the rotating ring during manual rotation, which could lead to the clamping force failing to reach the expected value and ensuring stable workpiece clamping. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a partial sectional view of the connecting pipe of this utility model;

[0018] Figure 3 This is an enlarged view of the movable component of this utility model;

[0019] Figure 4 This is a partial sectional view of the movable ring of this utility model;

[0020] Figure 5 This is an enlarged view of the positioning ring of this utility model;

[0021] Reference numerals: 1. Drive shaft; 101. Jacket; 102. Shift fork; 103. Connecting pipe; 2. Moving part; 201. Moving ring; 202. Rotating ring; 203. Pressing ring; 204. Pressure plate; 205. Moving groove; 206. Connecting groove; 3. Positioning part; 301. Positioning ring; 302. Sliding rod; 303. Adjusting block; 304. Limiting rod; 305. Annular groove; 306. Connecting block. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer that provides control.

[0026] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] like Figures 1 to 5As shown, a machine tool spindle with a stroke adjustment mechanism includes: a drive shaft 1, inside which are respectively provided a sleeve 101 and a connecting pipe 103, the connecting pipe 103 sliding inside the drive shaft 1; the sleeve 101 is disposed at one end of the drive shaft 1 and connected to the connecting pipe 103; a shift fork 102 is slidably connected to the outside of the connecting pipe 103; and an adjustment structure disposed outside the connecting pipe 103 for controlling the stroke of the connecting pipe 103. The adjustment structure includes a moving part 2 and a positioning part 3. The moving part 2 is disposed outside the connecting pipe 103 for controlling the movement range of the shift fork 102, and the positioning part 3 is disposed outside the moving part 2 for positioning the moving part 2. The moving part 2, in conjunction with the positioning part 3, adjusts the movement distance of the connecting pipe 103. Specifically, in use... First, the sliding distance of the shift fork 102 is adjusted by the cooperation of the positioning component 3 and the moving component 2, thereby adjusting the clamping force of the clamping sleeve 101. During use, the shift fork 102 is controlled by hydraulic or pneumatic equipment, so that the shift fork 102 can swing outside the connecting tube 103. Since the swing distance of the shift fork 102 is fixed, the moving distance of the connecting tube 103 can be adjusted by adjusting the distance of the moving component 2 during the swing of the shift fork 102. During use, the drive shaft 1 is installed inside the machine tool base. During use, the connecting tube 103 can control the movement of the clamping sleeve 101, thereby achieving the clamping and loosening of the workpiece. The drive shaft 1 and the connecting tube 103 are connected by a spline to ensure that the connecting tube 103 can rotate synchronously while sliding inside the drive shaft 1.

[0028] like Figures 1 to 5 As shown, a pulley is also provided on the outside of the drive shaft 1. Specifically, the pulley can connect the drive shaft 1 to the motor during use, ensuring that the drive shaft 1 can stably drive the jacket 101 to rotate.

[0029] like Figures 1 to 5 As shown, the movable component 2 includes multiple movable rings 201, which are screwed to the connecting pipe 103. The movable rings 201 are distributed on both sides of the shift fork 102. One end of the movable ring 201 has a connecting groove 206. Multiple pressure plates 204 are provided inside the connecting groove 206. An extrusion ring 203 is provided inside the connecting groove 206 and screwed to the connecting groove 206. Multiple movable grooves 205 are provided on the outer side of the movable ring 201. Specifically, after the position of the movable ring 201 is adjusted, the pressure plates 204 are extruded by the cooperation of the connecting grooves 206 and the extrusion rings 203, so that the pressure plates 204 clamp the connecting pipe 103, ensuring the stability of the movable ring 201 during use.

[0030] like Figures 1 to 5As shown, the positioning component 3 includes a positioning ring 301. A sliding rod 302 is provided on the side of the positioning ring 301 relative to the moving ring 201. Multiple sliding rods 302 are provided, each corresponding to a moving groove 205. The sliding rod 302 slides within the moving groove 205. An adjusting block 303 is provided on the outer side of the sliding rod 302. A limiting rod 304 is threadedly connected inside the positioning ring 301, and the axis of the limiting rod 304 is perpendicular to the axis of the positioning ring 301. An annular groove 305 is formed on the side of the positioning ring 301 relative to the sliding rod 302. A connecting block 306 is slidably connected inside the annular groove 305 and is connected to the sliding rod 302. Specifically, before adjusting the position of the moving ring 201, the positioning ring 301 is first controlled to slide outside the connecting pipe 103, thereby controlling the movement distance of the moving ring 201. The positioning ring 301 is controlled by limiting the movement of the positioning ring 301 after it has moved. The positioning ring 301 is limited by the cooperation of the limiting rod 304 and the connecting pipe 103, thereby controlling the movement distance of the positioning ring 301 and ensuring the accuracy of the adjustment distance of the moving ring 201. The sliding rod 302, together with the moving groove 205 and the adjusting block 303, controls the movement distance of the moving ring 201 and ensures the stability of the positioning ring 301 during the adjustment process. During use, the adjusting block 303, together with the moving ring 201, limits the sliding rod 302 and ensures the stability of the position of the sliding rod 302 during use. The annular groove 305 and the connecting block 306 have the same shape. The connecting block 306 can be a T-shaped block or a dovetail-shaped block. The positioning ring 301 and the sliding rod 302 are connected by the cooperation of the annular groove 305 and the connecting block 306.

[0031] like Figures 1 to 5 As shown, the limiting rod 304 is also provided with a barrier pad at the end of the connecting tube 103. Specifically, the barrier pad can be made of rubber or silicone to prevent the limiting rod 304 from directly contacting the connecting tube 103 during use.

[0032] like Figures 1 to 5 As shown, a rotating ring 202 is also provided on the outside of the extrusion ring 203. Specifically, the rotating ring 202 and the extrusion ring 203 can be integrally formed or welded together. The rotating ring 202 can be connected to a wrench during use to ensure that the extrusion ring 203 can rotate stably inside the connecting groove 206 during use.

[0033] like Figures 1 to 5As shown, the working state of the machine tool spindle with a stroke adjustment mechanism is as follows: When adjusting the position of the moving ring 201, the positioning ring 301 is first controlled to slide along the connecting pipe 103 according to the moving distance of the moving ring 201. After the position of the positioning ring 301 is adjusted, the connecting pipe 103 is limited by the cooperation of the limiting rod 304 and the connecting pipe 103 to ensure that the position of the positioning ring 301 is stable during use. Finally, the moving ring 201 is controlled to move away from or close to the positioning ring 301. After the moving ring 201 is adjusted, the limiting rod 304 is controlled to separate from the connecting pipe 103, thereby releasing the limitation on the positioning ring 301, so that the positioning ring 301 can contact the moving ring 201, ensuring that the moving ring 201 can stably limit the shift fork 102 during use.

[0034] In summary, this utility model includes: a drive shaft 1, inside which are respectively provided a sleeve 101 and a connecting pipe 103, the connecting pipe 103 sliding inside the drive shaft 1, the sleeve 101 being disposed at one end of the drive shaft 1 and connected to the connecting pipe 103, and a shift fork 102 slidably connected to the outside of the connecting pipe 103; an adjustment structure, disposed outside the connecting pipe 103, for controlling the stroke of the connecting pipe 103, the adjustment structure including a moving part 2 and a positioning part 3, the moving part 2 being disposed outside the connecting pipe 103 for controlling the movement range of the shift fork 102, and the positioning part 3 being disposed outside the moving part 2 for... The movable part 2 is positioned to allow for movement, and the movable part 2, in conjunction with the positioning part 3, adjusts the movement distance of the connecting pipe 103. This invention, through the arrangement of the movable part 2 and the positioning part 3, achieves the following: the rotation angle of the movable ring 201 is limited during use by the cooperation of the rotating ring 202, the pressing ring 203, the pressure plate 204, the moving groove 205, the positioning ring 301, the sliding rod 302, the adjusting block 303, and the limiting rod 304. This prevents the rotation angle of the rotating ring 202 from being difficult to control accurately during manual rotation, thus ensuring the clamping force reaches the expected value and guaranteeing the stability of workpiece clamping.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A machine tool spindle with a stroke adjustment mechanism, characterized in that, include: A drive shaft, wherein a sleeve and a connecting tube are respectively provided inside the drive shaft, the connecting tube slides inside the drive shaft, the sleeve is provided at one end of the drive shaft and is connected to the connecting tube, and a shift fork is slidably connected to the outside of the connecting tube; An adjustment structure is provided on the outside of the connecting tube to control the stroke of the connecting tube. The adjustment structure includes a moving part and a positioning part. The moving part is provided on the outside of the connecting tube to control the movement range of the shift fork. The positioning part is provided on the outside of the moving part to position the moving part. The moving part works with the positioning part to adjust the movement distance of the connecting tube.

2. A machine tool spindle with a stroke adjustment mechanism according to claim 1, characterized in that, A pulley is also provided on the outside of the drive shaft.

3. A machine tool spindle with a stroke adjustment mechanism according to claim 2, characterized in that, The moving component includes multiple moving rings, which are screwed to a connecting pipe and distributed on both sides of the shift fork. One end of each moving ring has a connecting groove, and multiple pressure plates are provided inside the connecting groove. A compression ring is provided inside the connecting groove and is screwed to the connecting groove. Multiple moving grooves are provided on the outer side of each moving ring.

4. A machine tool spindle with a stroke adjustment mechanism according to claim 3, characterized in that, The positioning component includes a positioning ring, and a sliding rod is provided on the side of the positioning ring relative to the moving ring. There are multiple sliding rods, and each sliding rod corresponds to a moving groove. The sliding rod slides inside the moving groove. An adjusting block is provided on the outside of the sliding rod. A limiting rod is threadedly connected inside the positioning ring, and the axis of the limiting rod is perpendicular to the axis of the positioning ring. An annular groove is opened on the side of the positioning ring relative to the sliding rod. A connecting block is slidably connected inside the annular groove, and the connecting block is connected to the sliding rod.

5. A machine tool spindle with a stroke adjustment mechanism according to claim 4, characterized in that, The limiting rod is also provided with a barrier pad relative to the end of the connecting pipe.

6. A machine tool spindle with a stroke adjustment mechanism according to claim 3, characterized in that, A rotating ring is also provided on the outside of the compression ring.

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