High-strength wear-resistant mechanical main shaft

Abstract

The utility model provides a high-strength wear-resistant mechanical main shaft, which relates to the technical field of mechanical main shafts, and comprises a main shaft body, the bottom of the main shaft body is provided with a mounting groove, the inner surface of the mounting groove is symmetrically provided with limiting holes, and the outer surface of the main shaft body is provided with a wear-resistant component. In the use process, through matched use of the main shaft body, the lantern ring, the fixing bolt, the guide block, the fixing rod, the limiting holes, the mounting groove and the wear-resisting assembly, when the mounting cylinder is arranged on the surface of the main shaft body in a sleeving mode, a tool is used for screwing the rotating block, so that the threaded rod drives the moving block to abut against and extrude the two movable blocks and extend into the two limiting holes; the mounting cylinder is fixed to the surface of the spindle body, the wear-resistant layer arranged on the surface of the mounting cylinder makes contact with the transmission mechanism, surface wear caused by direct contact of the spindle body and the transmission mechanism is avoided, the worn wear-resistant layer can be replaced by detaching the mounting cylinder, and the service life of the spindle body is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical spindles, in particular to a high-strength and wear-resistant mechanical spindle. Background Art

[0002] The mechanical spindle refers to the axis that drives the workpiece or tool to rotate on the machine tool. It is usually composed of a spindle, bearings and transmission parts (gears or pulleys) and other components. It is mainly used to support transmission parts such as gears and pulleys in the machine, and transmit motion and torque, such as the machine tool spindle; some are used to clamp workpieces, such as mandrels. The mechanical spindle refers to the axis that drives the workpiece or tool to rotate on the machine tool. It is usually composed of a spindle, bearings and transmission parts (gears or pulleys) and other components. It is mainly used to support transmission parts such as gears and pulleys in the machine, and transmit motion and torque, such as the machine tool spindle; some are used to clamp workpieces, such as mandrels. Except for machine tools whose main motion is linear motion, such as planers and broaching machines, most machine tools have spindle components. The motion accuracy and structural rigidity of the spindle components are important factors that determine the processing quality and cutting efficiency.

[0003] In the prior art, the wear resistance of the mechanical spindle is relatively poor. During long-term use, its surface will cause a certain degree of wear, resulting in a shortened service life of the mechanical spindle, thereby increasing the company's use cost. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that the mechanical spindle has poor wear resistance, and during long-term use, its surface will cause a certain degree of wear, resulting in a shortened service life of the mechanical spindle, thereby increasing the cost of use of the enterprise, and to propose a high-strength wear-resistant mechanical spindle.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-strength wear-resistant mechanical spindle, comprising: a spindle body, a mounting groove is provided at the bottom of the spindle body, limiting holes are symmetrically provided on the inner surface of the mounting groove, and a wear-resistant component is arranged on the outer surface of the spindle body; a wear-resistant component, the wear-resistant component comprises a mounting tube, a wear-resistant layer is arranged on the outer surface of the mounting tube, a fixing frame is fixedly connected to the inner bottom of the mounting tube, movable blocks are symmetrically arranged on the inner surface of the fixing frame, the movable blocks are matched with the limiting holes, a threaded rod is rotatably connected between the inner surface walls of the fixing frame, a moving block is threadedly rotatably connected to the outer surface of the threaded rod, and the moving block is matched with the movable block.

[0006] Preferably, the outer surfaces on both sides of the movable block rotate and penetrate the outer surfaces on both sides of the fixed frame respectively, and the movable block and the fixed frame are matched with each other.

[0007] Preferably, the outer surface of the threaded rod is rotated near the bottom to penetrate the inner bottom of the mounting tube, and the bottom of the threaded rod is fixedly connected with a rotating block.

[0008] Preferably, a groove is formed at the bottom of the installation tube, the rotating block is located inside the groove, and the bottom of the rotating block and the bottom of the installation tube are in the same plane.

[0009] Preferably, fixing rods are fixedly connected to the inner top of the installation groove near the four corners, and the outer surfaces of the plurality of fixing rods slide through the outer surface of the fixing frame.

[0010] Preferably, the outer surface of the main shaft body is fixedly connected with guide blocks at equal intervals, and the inner surface of the mounting tube is provided with a plurality of guide grooves at equal intervals, and the guide grooves are matched with the guide blocks.

[0011] Preferably, a collar is movably sleeved on the outer surface of the main shaft body near the top, and a plurality of fixing bolts are equidistantly arranged between the inner surface walls of the collar.

[0012] Preferably, outer surfaces of the plurality of fixing bolts extend into the mounting tube, the fixing bolts are threadedly connected to the mounting tube, and the collar is matched with the mounting tube.

[0013] Compared with the prior art, the advantages and positive effects of the utility model are:

[0014] 1. In the utility model, when in use, through the coordinated use of the spindle body, the collar, the fixing bolt, the guide block, the fixing rod, the limiting hole, the mounting groove and the wear-resistant component, when the mounting tube is sleeved on the surface of the spindle body, a tool is used to twist the rotating block, so that the threaded rod drives the moving block to contact and squeeze the two movable blocks, and extend into the two limiting holes, so that the mounting tube is fixed to the surface of the spindle body, and the wear-resistant layer arranged on the surface contacts with the transmission mechanism, so as to avoid direct contact between the spindle body and the transmission mechanism and cause surface wear, and by disassembling the mounting tube, the worn wear-resistant layer can be replaced, thereby improving the service life of the spindle body.

[0015] 2. In the utility model, when in use, a collar is movably sleeved on the outer surface of the main shaft body, and the outer surface of the collar wraps around the top of the mounting tube. After a plurality of fixing bolts are threadedly connected thereto, the collar is fixed to the top of the mounting tube, so that the top of the mounting tube is tightly fixed to the outer surface of the main shaft body, thereby improving the fixing effect of the mounting tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of a high-strength and wear-resistant mechanical spindle is proposed for the utility model;

[0017] Figure 2A schematic diagram of the main shaft body structure of a high-strength wear-resistant mechanical main shaft is proposed for the utility model;

[0018] Figure 3 A schematic diagram of the structure of a wear-resistant component of a high-strength wear-resistant mechanical spindle is proposed for the utility model;

[0019] Figure 4 A partial structural schematic diagram of a high-strength and wear-resistant mechanical spindle is proposed for the utility model;

[0020] Figure 5 The utility model provides a schematic diagram of a sleeve ring structure of a high-strength and wear-resistant mechanical main shaft.

[0021] Legend: 1. Spindle body; 2. Wear-resistant assembly; 201. Mounting cylinder; 202. Wear-resistant layer; 203. Guide groove; 204. Fixed frame; 205. Movable block; 206. Moving block; 207. Threaded rod; 208. Rotating block; 3. Ring; 4. Fixing bolt; 5. Guide block; 6. Fixing rod; 7. Limiting hole; 8. Mounting groove. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] Embodiment 1, as Figure 1-Figure 4As shown, the utility model provides a high-strength wear-resistant mechanical spindle, comprising: a spindle body 1, a mounting groove 8 is provided at the bottom of the spindle body 1, and a limiting hole 7 is symmetrically provided on the inner surface of the mounting groove 8, and a wear-resistant component 2 is arranged on the outer surface of the spindle body 1; the wear-resistant component 2, the wear-resistant component 2 comprises a mounting tube 201, and a wear-resistant layer 202 is arranged on the outer surface of the mounting tube 201, and a fixing frame 204 is fixedly connected to the inner bottom of the mounting tube 201, and a movable block 205 is symmetrically arranged on the inner surface of the fixing frame 204, and the movable block 205 is matched with the limiting hole 7, and a threaded rod 207 is rotatably connected between the inner surface walls of the fixing frame 204, and a moving block 206 is threadedly rotatably connected to the outer surface of the threaded rod 207, and the moving block 206 is matched with the movable block 205, and the outer surfaces of both sides of the movable block 205 The movable block 205 is matched with the fixed frame 204 and the outer surfaces of both sides thereof are rotated and penetrated respectively. The outer surface of the threaded rod 207 is rotated and penetrated through the inner bottom of the mounting tube 201 near the bottom. The bottom of the threaded rod 207 is fixedly connected with a rotating block 208. The bottom of the mounting tube 201 is provided with a groove. The rotating block 208 is located on the inner side of the groove. The bottom of the rotating block 208 is in the same plane as the bottom of the mounting tube 201. The inner top of the mounting groove 8 is fixedly connected with a fixing rod 6 near the four corners. The outer surfaces of the multiple fixing rods 6 are slidably penetrated through the outer surface of the fixed frame 204. The outer surface of the spindle body 1 is equidistantly fixedly connected with a guide block 5. The inner surface of the mounting tube 201 is provided with multiple guide grooves 203 equidistantly. The guide grooves 203 are matched with the guide blocks 5.

[0025] The effect achieved by the entire embodiment 1 is that when the high-strength wear-resistant mechanical spindle is used, the installation cylinder 201 is firstly sleeved onto the outer surface of the spindle body 1 through the multiple guide grooves 203 opened on the inner side thereof, so that it slides along the surfaces of the multiple guide blocks 5 until its inner bottom is attached to the bottom of the spindle body 1, and the fixing frame 204 fixedly connected to the inner bottom is inserted into the installation groove 8, and the fixing frame 204 slides within the inner side along the multiple fixing rods 6 to ensure the installation accuracy, and the rotating block 208 is screwed with a cross screwdriver to drive the threaded rod 207 to rotate clockwise in the fixing frame 204, so that the moving block 206 moves downward along the inner side of the fixed frame 204. The movable block 206 will gradually contact and squeeze the two movable blocks 205 during the downward movement. The two movable blocks 205 rotate in opposite directions in the fixed frame 204, so that one end of them is unfolded outward and extends into the limiting hole 7 at the corresponding position, so that the mounting tube 201 is fixed to the surface of the main shaft body 1, and the wear-resistant layer 202 arranged on its surface contacts with the transmission mechanism to avoid surface wear caused by direct contact between the main shaft body 1 and the transmission mechanism. By disassembling the mounting tube 201, the worn wear-resistant layer 202 can be replaced, thereby improving the service life of the main shaft body 1.

[0026] Embodiment 2, as Figure 1-Figure 4As shown, a collar 3 is movably sleeved near the top of the outer surface of the main shaft body 1, and a plurality of fixing bolts 4 are equidistantly arranged between the inner surface walls of the collar 3. The outer surfaces of the plurality of fixing bolts 4 all extend into the mounting tube 201, and the fixing bolts 4 are threadedly connected to the mounting tube 201. The collar 3 and the mounting tube 201 are matched with each other.

[0027] The effect achieved by the entire embodiment 2 is that, when in use, a ring 3 is movably sleeved on the outer surface of the main shaft body 1, and the outer surface of the ring 3 wraps around the top of the mounting tube 201. After a plurality of fixing bolts 4 are threadedly connected thereto, the ring 3 is fixed to the top of the mounting tube 201, so that the top of the mounting tube 201 is tightly fixed to the outer surface of the main shaft body 1, thereby improving the fixing effect of the mounting tube 201.

[0028] Working principle: When the high-strength wear-resistant mechanical spindle is used, the installation tube 201 is firstly sleeved onto the outer surface of the spindle body 1 through the multiple guide grooves 203 opened on the inner side thereof, so that it slides along the surfaces of the multiple guide blocks 5 until its inner bottom is fitted to the bottom of the spindle body 1, and the fixing frame 204 fixedly connected to its inner bottom is inserted into the installation groove 8, and the fixing frame 204 slides within the inner side thereof along the multiple fixing rods 6 to ensure the installation accuracy. When the rotating block 208 is screwed with a cross screwdriver, the threaded rod 207 is driven to rotate clockwise in the fixing frame 204, so that the moving block 206 moves downward along the inner side of the fixing frame 204, and the moving block 206 gradually contacts and squeezes the two movable blocks 205 during the downward movement, and the two movable blocks 205 are in the fixing frame 2 04 rotates in the opposite direction so that one end of it expands outward and extends into the limiting hole 7 at the corresponding position, so that the mounting tube 201 is fixed to the surface of the main shaft body 1, and the wear-resistant layer 202 arranged on its surface contacts with the transmission mechanism, so as to avoid the main shaft body 1 directly contacting with the transmission mechanism and causing surface wear. By disassembling the mounting tube 201, the worn wear-resistant layer 202 can be replaced, thereby improving the service life of the main shaft body 1. By movably sleeved on the outer surface of the main shaft body 1, the outer surface of the sleeve 3 wraps around the top of the mounting tube 201. After multiple fixing bolts 4 are threadedly connected with it, the sleeve 3 is fixed to the top of the mounting tube 201, so that the top of the mounting tube 201 will be tightly fixed to the outer surface of the main shaft body 1, thereby improving the fixing effect of the mounting tube 201.

[0029] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A high-strength wear-resistant mechanical spindle, characterized in that: include: A main shaft body (1), wherein a mounting groove (8) is provided at the bottom of the main shaft body (1), and limiting holes (7) are symmetrically provided on the inner surface of the mounting groove (8); and a wear-resistant component (2) is provided on the outer surface of the main shaft body (1); A wear-resistant component (2), the wear-resistant component (2) comprising a mounting tube (201), the outer surface of the mounting tube (201) being provided with a wear-resistant layer (202), the inner bottom of the mounting tube (201) being fixedly connected to a fixing frame (204), the inner surface of the fixing frame (204) being symmetrically provided with movable blocks (205), the movable blocks (205) being matched with the limiting holes (7), a threaded rod (207) being rotatably connected between the inner surface walls of the fixing frame (204), the outer surface of the threaded rod (207) being threadably rotatably connected to a movable block (206), the movable block (206) being matched with the movable block (205).

2. The high-strength wear-resistant mechanical spindle according to claim 1, characterized in that: The outer surfaces on both sides of the movable block (205) rotate and penetrate the outer surfaces on both sides of the fixed frame (204) respectively, and the movable block (205) and the fixed frame (204) are arranged in a matching manner.

3. The high-strength wear-resistant mechanical spindle according to claim 1, characterized in that: The outer surface of the threaded rod (207) is rotated near the bottom to penetrate the inner bottom of the installation cylinder (201), and the bottom of the threaded rod (207) is fixedly connected to a rotating block (208).

4. The high-strength wear-resistant mechanical spindle according to claim 3 is characterized in that: The bottom of the installation cylinder (201) is provided with a groove, the rotating block (208) is located inside the groove, and the bottom of the rotating block (208) and the bottom of the installation cylinder (201) are located in the same plane.

5. The high-strength wear-resistant mechanical spindle according to claim 1, characterized in that: The inner top of the installation groove (8) is fixedly connected to a fixing rod (6) near the four corners, and the outer surfaces of the plurality of fixing rods (6) slide through the outer surface of the fixing frame (204).

6. The high-strength wear-resistant mechanical spindle according to claim 1, characterized in that: The outer surface of the main shaft body (1) is fixedly connected with guide blocks (5) at equal intervals, and the inner surface of the mounting cylinder (201) is provided with a plurality of guide grooves (203) at equal intervals, and the guide grooves (203) are matched with the guide blocks (5).

7. The high-strength wear-resistant mechanical spindle according to claim 1, characterized in that: A collar (3) is movably sleeved on the outer surface of the main shaft body (1) near the top, and a plurality of fixing bolts (4) are equidistantly arranged between the inner surface walls of the collar (3).

8. The high-strength wear-resistant mechanical spindle according to claim 7, characterized in that: The outer surfaces of the plurality of fixing bolts (4) extend into the mounting tube (201); the fixing bolts (4) are threadedly connected to the mounting tube (201); and the collar (3) and the mounting tube (201) are matched.

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