A spindle mechanism of a numerical control machining center

Abstract

The utility model belongs to the main shaft mechanism technical field, concretely relates to a main shaft mechanism of numerical control machining center, including main shaft body, the outside fixed connection of main shaft body has the connecting piece, the outside contact of connecting piece has the installing spare, the outside fixed connection of installing spare has the connecting block, the connecting block is contacted with connecting piece, the inside of connecting block is equipped with the clamping groove, the inside sliding connection of clamping groove has the slide rod. The utility model through design clamping groove, slide rod, moving plate, fixed block, handle and support block etc. component, only needs simple pull handle to realize the quick positioning of installing spare and connecting piece, the spring elasticity can drive slide rod automatic clamping into clamping groove after handle is loosened, realizes the reliable spacing of main shaft body, has simplified the installation operation process of device obviously, has reduced the installation difficulty, has promoted the installation efficiency, makes device convenient to install.

Description

Technical Field

[0001] This utility model relates to the field of spindle mechanism technology, specifically a spindle mechanism for a CNC machining center. Background Technology

[0002] The spindle mechanism of a CNC machining center plays a vital role in the manufacturing industry. It drives the rotation of the cutting tool to achieve precision machining of the workpiece, and is widely used in metal processing, parts manufacturing, mold making, and other fields. The performance of the spindle mechanism directly affects machining accuracy, surface quality, and machining efficiency, thus it is widely used in industries requiring high-precision, high-efficiency machining, such as aerospace, automotive manufacturing, electronics, and medical devices. Through continuous technological innovation and development, the spindle mechanism plays an increasingly important role in CNC machining centers, driving the development and progress of the manufacturing industry.

[0003] For example, utility model patent CN213559903U discloses a spindle structure for a CNC machining center, including a cylinder body. A first fixed plate is fixedly connected to one end of the outer side of the cylinder body, and a second fixed plate is fixedly connected to the outer side of the cylinder body away from the first fixed plate. Buffer grooves are provided at both ends inside the cylinder body, and a first return spring is fixedly connected to the inner wall of each buffer groove. This device has a compact structure and strong practicality. By setting a shock-absorbing mechanism between the cylinder body and the spindle, the working spindle can be shock-absorbing, thereby avoiding damage to the spindle due to excessive vibration and greatly extending the service life of the equipment. At the same time, by setting a cooling component on the outside of the spindle, the heat generated during the operation of the spindle can be quickly removed, thereby avoiding excessive temperature of the spindle and greatly improving the performance of the equipment.

[0004] However, in existing technologies, the installation of the device requires the use of external tools such as wrenches and screwdrivers. This installation method not only makes the installation steps cumbersome and the operation process complex, but also increases the difficulty and labor intensity for installers, making the device inconvenient to install. Therefore, improvements are needed. Utility Model Content

[0005] The purpose of this utility model is to provide a spindle mechanism for a CNC machining center, which solves the problem that the installation of the device requires the use of external tools such as wrenches and screwdrivers. This installation method not only makes the installation steps cumbersome and the operation process complicated, but also increases the difficulty and labor intensity of the installers, making the device inconvenient to install.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a spindle mechanism for a CNC machining center, comprising a spindle body, a connector fixedly connected to the outer side of the spindle body, an mounting component contacting the outer side of the connector, a connecting block fixedly connected to the outer side of the mounting component, the connecting block contacting the connector, a slot formed inside the connecting block, a slide rod slidably connected inside the slot, a moving plate fixedly connected to the end of the slide rod away from the slot, the connector contacting the moving plate, a support block fixedly connected to the outer side of the slide rod, a guide rod slidably connected inside the support block, a spring provided on the outer side of the guide rod, both ends of the guide rod fixedly connected to the connector, the connector slidably connected to the slide rod, and a sealing mechanism provided inside the connector. By pulling the slide rod to a designated position, then moving the mounting component to move the connecting block and the slot to the designated position of the connector, and then moving the slide rod into the slot, the spindle body is thus limited, making the device easy to install.

[0007] Preferably, a fixing block is fixedly connected to the side of the movable plate away from the slide bar, and a handle is fixedly connected to the side of the fixing block away from the movable plate. By designing the handle, the operator can directly hold and operate it manually without the need for additional tools. This allows the movable plate to move along a preset trajectory, thereby linking the slide bar to complete the corresponding actions in sync, which greatly improves the ease of operation and flexibility of the overall mechanism.

[0008] Preferably, one end of the spring is fixedly connected to the support block, and the other end of the spring is fixedly connected to the connector. By designing the spring, the support block has a stable elastic reset capability. When the support block is subjected to external force, the spring will generate corresponding elastic deformation and store elastic potential energy. After the external force disappears, the elastic potential energy is converted into kinetic energy, which pushes the support block to quickly return to the initial position, effectively avoiding component jamming and ensuring the continuity of the mechanism's movement.

[0009] Preferably, the sealing mechanism includes a screw, which is rotatably connected inside the connector. A threaded sleeve is threadedly connected to the outside of the screw, and a semi-circular sleeve is fixedly connected to the threaded sleeve. A guide block is fixedly connected to the outside of the semi-circular sleeve, and the guide block is slidably connected to the connector. The connector is slidably connected to the semi-circular sleeve, and a semi-circular sealing sleeve is fixedly connected to the outside of the semi-circular sleeve. The connector and the semi-circular sealing sleeve are slidably connected, and the semi-circular sealing sleeve contacts the slide rod. By rotating the screw and connector, a threaded movement occurs. The screw rotation drives the semi-circular sealing sleeve and other components to move, causing the semi-circular sealing sleeve to contact the slide rod, thereby sealing the spring and preventing it from rusting and reducing its elasticity.

[0010] Preferably, a rotating block is fixedly connected to the screw, and the rotating block is in contact with the connecting part. By designing the rotating block, the operator can manually turn the rotating block and use the friction between the rotating block and the hand to easily drive the screw to rotate stably around its own axis, thereby achieving precise position adjustment between related components.

[0011] Preferably, the connector is internally fitted with a bearing, and the inner ring of the bearing is internally fitted with a screw. By designing the bearing, it can not only provide reliable support and positioning for the screw, limit the radial displacement of the screw, and ensure its rotational concentricity, but also replace traditional sliding friction with the rolling of balls between the inner and outer rings of the bearing, thus greatly reducing the frictional resistance when the screw rotates.

[0012] Preferably, the guide block has a connecting rod slidably connected inside, and the two ends of the connecting rod are fixedly connected to the connecting parts. By designing the guide block, the movement trajectory of the semi-circular sleeve can be precisely constrained and guided, so that the semi-circular sleeve can slide smoothly along the axis of the connecting rod following the guide block, avoiding deviation, shaking, etc., ensuring that the semi-circular sleeve can accurately mate with the relevant mating parts, and ensuring the operating accuracy and stability of the overall mechanism.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the design of components such as slots, slide rods, moving plates, fixing blocks, handles, and support blocks, allows for quick positioning of the mounting parts and connecting parts simply by pulling the handle. After releasing the handle, the spring force can drive the slide rod to automatically engage in the slot, achieving reliable positioning of the main shaft body. This significantly simplifies the installation operation process of the device, reduces the installation difficulty, improves the installation efficiency, and makes the device easy to install.

[0015] 2. This utility model, through the design of components such as screw, rotating block, bearing, threaded sleeve, semi-circular sleeve and guide block, only requires rotating the rotating block to drive the semi-circular sealing sleeve to fit tightly with the slide rod, forming a sealed protective space for the spring. This can effectively isolate external water vapor, dust and other corrosive media, prevent the spring from rusting and prevent the spring's elasticity from decreasing. Attached Figure Description

[0016] Figure 1 This is a perspective view of the overall structure of this utility model;

[0017] Figure 2 This utility model Figure 1 Partial sectional perspective view of the structure;

[0018] Figure 3 This utility model Figure 2 Enlarged view of the connection block;

[0019] Figure 4 This utility model Figure 3 Enlarged view of point A.

[0020] In the diagram: 1. Main spindle body; 2. Connecting component; 3. Mounting component; 4. Connecting block; 5. Slot; 6. Slide rod; 7. Moving plate; 8. Fixing block; 9. Handle; 10. Support block; 11. Guide rod; 12. Spring; 13. Sealing mechanism; 131. Screw; 132. Rotating block; 133. Bearing; 134. Threaded sleeve; 135. Semi-circular sleeve; 136. Guide block; 137. Connecting rod; 138. Semi-circular sealing sleeve. Detailed Implementation

[0021] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0022] Please see Figures 1-4 A spindle mechanism for a CNC machining center includes a spindle body 1. A connector 2 is fixedly connected to the outer side of the spindle body 1. A mounting part 3 contacts the outer side of the connector 2. A connecting block 4 is fixedly connected to the outer side of the mounting part 3. The connecting block 4 contacts the connector 2. A slot 5 is formed inside the connecting block 4. A slide rod 6 is slidably connected inside the slot 5. A moving plate 7 is fixedly connected to the end of the slide rod 6 away from the slot 5. The connector 2 contacts the moving plate 7. A fixing block 8 is fixedly connected to the side of the moving plate 7 away from the slide rod 6. A handle 9 is fixedly connected to the side of the fixing block 8 away from the moving plate 7. By designing the handle 9, the operator can directly hold and operate it manually without the need for additional tools. It can easily drive the moving plate 7 to move along a preset trajectory, thereby synchronously completing the corresponding action of the slide rod 6. This greatly improves the operation convenience and flexibility of the overall mechanism. A support block 10 is fixedly connected to the outer side of the slide rod 6. A sliding connection is formed inside the support block 10. A guide rod 11 is connected to the support block 10, and a spring 12 is provided on the outside of the guide rod 11. One end of the spring 12 is fixedly connected to the support block 10, and the other end of the spring 12 is fixedly connected to the connector 2. By designing the spring 12, the support block 10 has a stable elastic reset capability. When the support block 10 is subjected to external force, the spring 12 will generate corresponding elastic deformation and store elastic potential energy. After the external force disappears, the elastic potential energy is converted into kinetic energy, pushing the support block 10 to quickly return to the initial position, effectively avoiding component jamming and ensuring the continuity of the mechanism's movement. The two ends of the guide rod 11 are fixedly connected to the connector 2, and the connector 2 is slidably connected to the slide rod 6. The connector 2 is provided with a sealing mechanism 13 inside. By pulling the slide rod 6 to the designated position, and then moving the mounting part 3 to drive the connecting block 4 and the slot 5 to the designated position of the connector 2, and then moving the slide rod 6 into the slot 5, the main shaft body 1 is limited, making the device easy to install.

[0023] Please see Figure 4The sealing mechanism 13 includes a screw 131. The screw 131 is rotatably connected inside the connector 2. A rotating block 132 is fixedly connected to the screw 131. The rotating block 132 contacts the connector 2. By designing the rotating block 132, the operator can manually turn the rotating block 132 and use the friction between the rotating block 132 and the hand to easily drive the screw 131 to rotate stably around its own axis, thereby achieving precise position adjustment between related components. A bearing 133 is fixedly sleeved inside the connector 2. The screw 131 is fixedly sleeved inside the inner ring of the bearing 133. By designing the bearing 133, it can not only provide reliable support and positioning for the screw 131, limit the radial displacement of the screw 131, and ensure its rotational concentricity, but also replace the traditional sliding friction with the rolling of the balls between the inner and outer rings of the bearing 133, greatly reducing the frictional resistance when the screw 131 rotates.

[0024] Please see Figure 4 A threaded sleeve 134 is threadedly connected to the outer side of the screw 131. A semi-circular sleeve 135 is fixedly connected to the threaded sleeve 134. A guide block 136 is fixedly connected to the outer side of the semi-circular sleeve 135. A connecting rod 137 is slidably connected inside the guide block 136. Both ends of the connecting rod 137 are fixedly connected to the connecting part 2. By designing the guide block 136, the movement trajectory of the semi-circular sleeve 135 can be precisely constrained and guided, allowing the semi-circular sleeve 135 to slide smoothly along the axis of the connecting rod 137 following the guide block 136, avoiding offset or shaking, and ensuring that the semi-circular sleeve 135 can accurately mate with the relevant mating parts, ensuring the overall... The mechanism ensures operational accuracy and stability. Guide block 136 is slidably connected to connector 2, connector 2 is slidably connected to semi-circular sleeve 135, and semi-circular sealing sleeve 138 is fixedly connected to the outside of semi-circular sleeve 135. Connector 2 is slidably connected to semi-circular sealing sleeve 138, and semi-circular sealing sleeve 138 contacts slide rod 6. By rotating screw 131, threaded movement occurs between screw 131 and connector 2. The rotation of screw 131 drives the semi-circular sealing sleeve 138 and other components to move. The semi-circular sealing sleeve 138 moves and contacts slide rod 6, thereby sealing spring 12 and preventing spring 12 from rusting and reducing its elasticity.

[0025] The specific implementation process of this utility model is as follows: Before using the device, pull the handle 9 to move away from the moving plate 7. The movement of the handle 9 causes the fixed block 8 to move, the fixed block 8 to move, the moving plate 7 to move, the moving plate 7 to move, the sliding rod 6 to move, the sliding rod 6 to move, the supporting block 10 to move, the supporting block 10 to move, and the spring 12 to move as well. After the sliding rod 6 moves to the designated position, the moving mounting part 3 moves towards the connecting part 2. The movement of the mounting part 3 causes the connecting block 4 to move, the connecting block 4 to move, and the slot 5 to move. After the connecting block 4 and the slot 5 move to the designated position in the connecting part 2, release the handle 9. The elastic force of the spring 12 pushes the supporting block 10 to move, the supporting block 10 to move, and the sliding rod 6 and other components to move. The sliding rod 6 moves into the slot 5, thereby limiting the main shaft body 1 and making the device easy to install.

[0026] When the spring 12 needs to be sealed, the rotating block 132 is rotated. The rotation of the rotating block 132 drives the screw 131 to rotate. The rotation of the screw 131 causes threaded movement with the threaded sleeve 134, which in turn causes the threaded sleeve 134 to have relative displacement. The movement of the threaded sleeve 134 causes the sealing semi-circular sleeve 135 to move. The movement of the semi-circular sleeve 135 causes the guide block 136 and the semi-circular sealing sleeve 138 to move. The semi-circular sealing sleeve 138 moves and contacts the slide rod 6, thereby sealing the spring 12 and preventing the spring 12 from rusting and reducing its elasticity.

[0027] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A spindle mechanism for a CNC machining center, comprising a spindle body (1), characterized in that: A connector (2) is fixedly connected to the outside of the main shaft body (1). A mounting part (3) is in contact with the outside of the connector (2). A connecting block (4) is fixedly connected to the outside of the mounting part (3). The connecting block (4) is in contact with the connector (2). A slot (5) is provided inside the connecting block (4). A slide rod (6) is slidably connected inside the slot (5). A moving plate (7) is fixedly connected to one end of the slide rod (6) away from the slot (5). The connector (2) is in contact with the moving plate (7). A support block (10) is fixedly connected to the outside of the slide rod (6). A guide rod (11) is slidably connected inside the support block (10). A spring (12) is provided on the outside of the guide rod (11). Both ends of the guide rod (11) are fixedly connected to the connector (2). The connector (2) is slidably connected to the slide rod (6). A sealing mechanism (13) is provided inside the connector (2).

2. The spindle mechanism of a CNC machining center according to claim 1, characterized in that: A fixing block (8) is fixedly connected to the side of the movable plate (7) away from the slide bar (6), and a handle (9) is fixedly connected to the side of the fixing block (8) away from the movable plate (7).

3. The spindle mechanism of a CNC machining center according to claim 1, characterized in that: One end of the spring (12) is fixedly connected to the support block (10), and the other end of the spring (12) is fixedly connected to the connector (2).

4. The spindle mechanism of a CNC machining center according to claim 1, characterized in that: The sealing mechanism (13) includes a screw (131), the screw (131) is rotatably connected inside the connector (2), the screw (131) is connected to a threaded sleeve (134) by a thread on the outside, a semi-circular sleeve (135) is fixedly connected to the threaded sleeve (134), a guide block (136) is fixedly connected to the outside of the semi-circular sleeve (135), the guide block (136) is slidably connected to the connector (2), the connector (2) is slidably connected to the semi-circular sleeve (135), a semi-circular sealing sleeve (138) is fixedly connected to the outside of the semi-circular sleeve (135), the connector (2) is slidably connected to the semi-circular sealing sleeve (138), and the semi-circular sealing sleeve (138) is in contact with the slide rod (6).

5. The spindle mechanism of a CNC machining center according to claim 4, characterized in that: A rotating block (132) is fixedly connected to the screw (131), and the rotating block (132) is in contact with the connector (2).

6. The spindle mechanism of a CNC machining center according to claim 4, characterized in that: The connector (2) is internally fitted with a bearing (133), and the inner ring of the bearing (133) is internally fitted with a screw (131).

7. The spindle mechanism of a CNC machining center according to claim 4, characterized in that: The guide block (136) is internally slidably connected to a connecting rod (137), and both ends of the connecting rod (137) are fixedly connected to the connector (2).

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