High-rigidity main shaft structure of horizontal machining center

Abstract

The utility model provides a high-rigidity main shaft structure of a horizontal machining center, and relates to the technical field of horizontal machining centers, the high-rigidity main shaft structure comprises an annular coil pipe cooling assembly, a self-adaptive reciprocating motion assembly and a shaft body, the annular coil pipe cooling assembly is arranged on one side of the outer wall of the self-adaptive reciprocating motion assembly; the annular coil pipe cooling assembly comprises two connecting plates, a circulating pump is fixedly installed at the tops of the two connecting plates, the liquid outlet end of the circulating pump fixedly communicates with a liquid outlet pipe, and the outer surface wall of the liquid outlet pipe fixedly communicates with a coil pipe. The cooling liquid can flow in the sleeve according to a specific path through the design of the coil pipe, the cooling effect is enhanced, heat generated by high-speed rotation of the main shaft is effectively taken away, deformation of the main shaft caused by overheating is prevented, meanwhile, the high heat generated by a shaft body can be continuously absorbed by the cooling liquid in the circulation process, and the cooling effect is improved. And the temperature of the main shaft body can be effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of horizontal machining center technology, and in particular to a high-rigidity spindle structure for a horizontal machining center. Background Technology

[0002] A horizontal machining center is a common type of CNC machine tool. It features a horizontal worktable and a vertical spindle. A horizontal machining center typically consists of a worktable, a spindle, a tool magazine, and a control system. The worktable can move horizontally, while the spindle can move vertically. This structure gives the horizontal machining center multi-axis machining capabilities, allowing it to perform machining operations in multiple directions simultaneously.

[0003] The high-rigidity spindle structure of a horizontal machining center: The spindle is an important component of a horizontal machining center. Its main function is to provide sufficient rotational power for the tool and to ensure the accuracy and stability of the tool when it is running at high speed. The high-rigidity spindle is a technical solution specifically designed to improve the rigidity of the spindle system.

[0004] The existing high-rigidity spindle structure of a horizontal machining center has the following shortcomings:

[0005] 1) An existing high-rigidity spindle structure for a horizontal machining center. When the machining center spindle is running at high speed, it will generate a lot of heat. If it is not cooled down, the heat will continue to accumulate, which will cause the core temperature of the spindle to rise continuously. The rise in temperature will cause thermal deformation of the spindle, and the high temperature of the thermal deformation of the spindle will cause varying degrees of damage to the tool, thus affecting the machining efficiency and machining quality.

[0006] 2) An existing high-rigidity spindle structure for a horizontal machining center. When the spindle of a horizontal machining center is running normally, the heat generation of different parts of the spindle is different. Cooling is only carried out in a fixed area, which will lead to uneven heating and cooling of different parts of the spindle, thus affecting the overall stability of the spindle. Utility Model Content

[0007] This utility model proposes an annular coil cooling assembly. The annular coil cooling assembly fully wraps the spindle body with a circular cooling sleeve, increasing its cooling area and promoting better contact between the spindle and the coolant. Furthermore, the coil design allows the coolant to flow along a specific path within the sleeve, enhancing the cooling effect and effectively solving the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a high-rigidity spindle structure for a horizontal machining center, comprising an annular coil cooling assembly, an adaptive reciprocating motion assembly, and a spindle body, wherein the annular coil cooling assembly is installed on one side of the outer wall of the adaptive reciprocating motion assembly;

[0009] The annular coil cooling assembly includes two connecting plates. A circulating pump is fixedly installed on the top of the two connecting plates. The outlet end of the circulating pump is fixedly connected to an outlet pipe. A coil is fixedly connected to the outer wall of the outlet pipe. A connecting pipe is fixedly connected to the outlet end of the coil. A pipe joint is fixedly connected to the top of the connecting pipe. A radiator is fixedly connected to the outlet end of the pipe joint. Four support frames are fixedly welded to the bottom of the radiator. An inlet pipe is fixedly connected to the outlet end of the radiator.

[0010] Preferably, the adaptive reciprocating motion component includes two metal connectors, each with a miniature electric cylinder bolted to its outer wall. The shaft ends of the two miniature electric cylinders are fixedly fitted with a connecting plate. The two miniature electric cylinders convert electrical energy into mechanical energy to drive the connecting plate to perform linear motion, and the two miniature electric cylinders are placed symmetrically.

[0011] Preferably, a fan is installed on one side of the outer wall of the radiator, and a filter screen is installed on the top of the radiator.

[0012] Preferably, the outer wall of the shaft is connected to a tapered hole and a threaded section at both ends, and two sliding grooves are formed on the outer surface of the shaft, with an annular sleeve slidably connected inside the two sliding grooves.

[0013] Preferably, a section of the outer wall of the annular sleeve is bolted to the outer wall of the two connecting plates, one end of the outer wall of the shaft is bolted to two metal connectors, and the interior of the annular sleeve is a hollow structure.

[0014] Preferably, the inner surface of the annular sleeve is fixedly connected to two connecting plates and four support frames, the coil fully wraps around the inner surface of the annular sleeve, and the liquid outlet of the inlet pipe is connected to the liquid inlet of the circulating pump.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, by setting an annular coil cooling assembly, the circular cooling sleeve fully wraps the spindle body, increasing its cooling area and promoting better contact between the spindle and the coolant. The coil design allows the coolant to flow in the sleeve along a specific path, enhancing the cooling effect and effectively removing the heat generated by the high-speed rotation of the spindle. It also prevents the spindle from deforming due to overheating. At the same time, the coolant can continuously absorb the high heat generated by the spindle body during circulation, effectively reducing the temperature of the spindle body.

[0017] 2. In this utility model, by setting an adaptive reciprocating motion component, the reciprocating motion of the cooling component can make the coolant come into contact with different parts of the spindle body, which can avoid local overheating or local overcooling. Its movement effect can allow the coolant to carry away the heat from the heat-generating area in time, which can improve the accurate cooling of different parts of the spindle body and better maintain the temperature stability of the spindle. Attached Figure Description

[0018] Figure 1 This is a perspective view of the high-rigidity spindle structure of a horizontal machining center proposed in this utility model.

[0019] Figure 2 This is a three-dimensional cross-sectional view of the high-rigidity spindle structure of a horizontal machining center proposed in this utility model.

[0020] Figure 3 This is an enlarged view of the annular coil cooling assembly in the high-rigidity spindle structure of a horizontal machining center proposed in this utility model.

[0021] Figure 4 This is a partially enlarged view of the annular coil cooling assembly in the high-rigidity spindle structure of a horizontal machining center proposed in this utility model.

[0022] Figure 5 This is a partially enlarged view of the annular coil cooling assembly in the high-rigidity spindle structure of a horizontal machining center proposed in this utility model.

[0023] Figure 6 This is an enlarged view of the adaptive reciprocating motion component in the high-rigidity spindle structure of a horizontal machining center proposed in this utility model.

[0024] Legend: 1. Shaft body; 2. Tapered hole; 3. Threaded section; 4. Annular sleeve; 5. Adaptive reciprocating motion assembly; 501. Metal connector; 502. Miniature electric cylinder; 503. Connecting plate; 6. Annular coil cooling assembly; 601. Connecting plate; 602. Circulating pump; 603. Liquid outlet pipe; 604. Coil; 605. Connecting pipe; 606. Pipe joint; 607. Radiator; 608. Fan; 609. Filter screen; 610. Support frame; 611. Liquid inlet pipe. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Example 1, according to Figures 2-5 As shown, this utility model provides a technical solution: a high-rigidity spindle structure for a horizontal machining center, including an annular coil cooling assembly 6, an adaptive reciprocating motion assembly 5, and a spindle body 1. The annular coil cooling assembly 6 is installed on one side of the outer wall of the adaptive reciprocating motion assembly 5.

[0028] The annular coil cooling assembly 6 includes two connecting plates 601. A circulating pump 602 is fixedly installed on the top of the two connecting plates 601. The outlet end of the circulating pump 602 is fixedly connected to an outlet pipe 603. A coil 604 is fixedly connected to the outer wall of the outlet pipe 603. A connecting pipe 605 is fixedly connected to the outlet end of the coil 604. A pipe joint 606 is fixedly connected to the top of the connecting pipe 605. A radiator 607 is fixedly connected to the outlet end of the pipe joint 606. Four support brackets 610 are fixedly welded to the bottom of the radiator 607. An inlet pipe 611 is fixedly connected to the outlet end of the radiator 607.

[0029] The overall effect achieved by embodiment 1 is as follows: By pre-setting the above components, a complete annular coil cooling assembly 6 is formed. First, a circulation pump 602 is fixedly installed on the top of the two connecting plates 601. A liquid outlet pipe 603 is fixedly connected to the liquid outlet end of the circulation pump 602. Next, a coil 604 is fixedly connected to the outer wall of the liquid outlet pipe 603. A connecting pipe 605 is fixedly connected to the liquid outlet end of the coil 604. A pipe joint 606 is fixedly connected to the top of the connecting pipe 605. A radiator 607 is fixedly connected to the liquid outlet end of the pipe joint 606. Four support frames 610 are fixedly welded to the bottom of the radiator 607. An inlet pipe 611 is fixedly connected to the liquid outlet end of the radiator 607. Through the connection of the above components, the coolant is used as the cooling agent. The cooling system effectively absorbs the heat generated by the spindle body 1 through the circulating coolant. The annular coil 604 design increases the contact area between the coolant and the spindle body 1, significantly improving heat exchange efficiency. The annular coil cooling assembly 6 fully encloses the spindle body 1 in a circular cooling sleeve, increasing its cooling area and promoting better contact between the spindle body 1 and the coolant. The coil 604 design allows the coolant to flow along a specific path within the sleeve, enhancing the cooling effect and effectively removing the heat generated by the high-speed rotation of the spindle body 1. It also prevents the spindle body 1 from deforming due to overheating. Simultaneously, the coolant continuously absorbs the high heat generated by the spindle body 1 during circulation, effectively reducing the temperature of the spindle body 1.

[0030] Example 2, according to Figures 1-2 as well as Figure 6 As shown, the adaptive reciprocating motion component 5 includes two metal connectors 501. A miniature electric cylinder 502 is bolted to the outer wall of each of the two metal connectors 501. A connecting plate 503 is fixedly sleeved on the shaft end of each of the two miniature electric cylinders 502. The two miniature electric cylinders 502 convert electrical energy into mechanical energy to drive the connecting plate 503 to perform linear motion. The two miniature electric cylinders 502 are symmetrically placed. A fan 608 is installed on one side of the outer wall of the radiator 607, and a filter screen 609 is installed on the top of the radiator 607. The two ends of the outer wall of the shaft body 1 are respectively connected to… The shaft body 1 has a tapered hole 2 and a threaded section 3. Two sliding grooves are opened on the outer surface of the shaft body 1. An annular sleeve 4 is slidably connected inside the two sliding grooves. One section of the outer wall of the annular sleeve 4 is bolted to the outer wall of the two connecting plates 503. One end of the outer wall of the shaft body 1 is bolted to two metal connectors 501. The annular sleeve 4 has a hollow structure inside. The inner surface of the annular sleeve 4 is fixedly connected to two connecting plates 601 and four support frames 610 respectively. The coil 604 fully wraps around the inner surface of the annular sleeve 4. The liquid outlet of the liquid inlet pipe 611 is connected to the liquid inlet of the circulating pump 602.

[0031] The effect achieved by the entire embodiment 2 is as follows: by pre-setting the above components, a complete adaptive reciprocating motion component 5 is formed. First, micro electric cylinders 502 are bolted to the outer walls of the two metal connectors 501, and connecting plates 503 are fixedly sleeved on the shaft ends of the two micro electric cylinders 502. The two micro electric cylinders 502 are placed symmetrically. The two micro electric cylinders 502 convert electrical energy into mechanical energy to drive the two connecting plates 503 to make linear motion. With the setting of the adaptive reciprocating motion component 5, the reciprocating motion of the cooling component can make the coolant contact different parts of the spindle body 1, which can avoid local overheating or local overcooling. Its movement effect can allow the coolant to remove the heat from the heat-generating area in time, which can improve the accurate cooling of different parts of the spindle body 1 and better maintain the temperature stability of the spindle body 1.

[0032] The working principle of the entire equipment is as follows: During the installation phase: First, place the shaft body 1 in a safe assembly area. Then, connect the tapered hole 2 and threaded section 3 to both ends of the outer wall of the shaft body 1. Next, open two sliding grooves on the outer surface of the shaft body 1, and slide annular sleeves 4 inside the two grooves, so that the inner surface of the annular sleeves 4 is fixedly connected to two connecting plates 601 and four support frames 610 respectively. Next, fix a circulating pump 602 on the top of the two connecting plates 601, and fix a liquid outlet pipe 603 at the outlet end of the circulating pump 602. Then, fix a coil 604 on the outer wall of the liquid outlet pipe 603, and fix a connecting pipe 605 at the outlet end of the coil 604. The top of 05 is fixedly connected to the pipe joint 606. The outlet end of the pipe joint 606 is fixedly connected to the radiator 607. Four support frames 610 are fixedly welded to the bottom of the radiator 607. The outlet end of the radiator 607 is fixedly connected to the inlet pipe 611. A fan 608 is installed on one side of the outer wall of the radiator 607. A filter screen 609 is installed on the top of the radiator 607. One end of the outer wall of the shaft body 1 is bolted to two metal connectors 501. Then, a miniature electric cylinder 502 is bolted to the outer wall of the two metal connectors 501. A connecting plate 503 is fixedly sleeved on the shaft end of the two miniature electric cylinders 502. The two miniature electric cylinders 502 are placed symmetrically.

[0033] The working principle of this device is as follows: The working stage is as follows: After all components are assembled, check whether each component is properly installed and fixed to ensure there is no looseness. Once confirmed, when the high-rigidity spindle of the horizontal machining center is operating at high speed, it generates a large amount of heat due to prolonged operation. At this time, the circulation pump 602 and radiator 607 are started via an external power supply. The circulation pump 602 delivers coolant to the coil 604 through multiple pipes. The coolant flows inside the coil 604, exchanging heat with the spindle shaft 1 outside the coil 604. Because the spindle shaft 1 generates heat during operation, its temperature is high. This heat is transferred to the coolant through the wall of the coil 604, raising the coolant temperature and lowering the temperature of the object being cooled. The heated coolant enters the radiator 607, and the fan 608 successfully cools the heated coolant further. The cooled coolant then re-enters the circulation pump 602 through the inlet pipe 611, thus achieving a circulating cooling effect. The annular coil cooling assembly 6 fully encloses the spindle shaft with a circular cooling sleeve. The spindle body 1 has an increased cooling area, promoting better contact between the spindle body 1 and the coolant. The coil 604 design allows the coolant to flow along a specific path within the sleeve, enhancing the cooling effect and effectively removing the heat generated by the high-speed rotation of the spindle body 1. This also prevents the spindle body 1 from deforming due to overheating. Simultaneously, the coolant continuously absorbs the high heat generated by the spindle body 1 during circulation, effectively reducing its temperature. At the same time, two micro electric cylinders 502 are activated, converting electrical energy into mechanical energy and driving the annular sleeve 4 to move linearly through two connecting plates 503. This completes the heat dissipation work for different parts of the spindle body 1. The adaptive reciprocating motion component 5 allows the coolant to contact different parts of the spindle body 1, preventing local overheating or undercooling. Its movement allows the coolant to remove heat from the heat-generating areas in a timely manner, improving the accuracy of cooling different parts of the spindle body 1 and better maintaining the temperature stability of the spindle body 1.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or equivalent variations to the above-disclosed technical content and apply them to other fields. However, any simple modifications, equivalent variations and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high rigidity spindle structure of horizontal machining center, comprising a ring pipe cooling assembly (6), a self-adaptive reciprocating motion assembly (5), a shaft body (1), characterized in that: The annular coil cooling assembly (6) is installed on one side of the outer wall of the adaptive reciprocating motion assembly (5); The annular coil cooling assembly (6) includes two connecting plates (601). A circulating pump (602) is fixedly installed on the top of the two connecting plates (601). The outlet end of the circulating pump (602) is fixedly connected to an outlet pipe (603). A coil (604) is fixedly connected to the outer wall of the outlet pipe (603). A connecting pipe (605) is fixedly connected to the outlet end of the coil (604). A pipe joint (606) is fixedly connected to the top of the connecting pipe (605). A radiator (607) is fixedly connected to the outlet end of the pipe joint (606). Four support frames (610) are fixedly welded to the bottom of the radiator (607). An inlet pipe (611) is fixedly connected to the outlet end of the radiator (607).

2. The high-rigidity spindle structure of a horizontal machining center according to claim 1, characterized in that: The adaptive reciprocating motion component (5) includes two metal connectors (501). The outer walls of the two metal connectors (501) are bolted with miniature electric cylinders (502). The shaft ends of the two miniature electric cylinders (502) are fixedly sleeved with connecting plates (503). The two miniature electric cylinders (502) convert electrical energy into mechanical energy to drive the connecting plates (503) to make linear motion. The two miniature electric cylinders (502) are placed symmetrically.

3. The high-rigidity spindle structure of a horizontal machining center according to claim 1, characterized in that: A fan (608) is installed on one side of the outer wall of the radiator (607), and a filter (609) is installed on the top of the radiator (607).

4. The high-rigidity spindle structure of a horizontal machining center according to claim 1, characterized in that: The outer walls of the shaft (1) are respectively connected to a tapered hole (2) and a threaded section (3). Two sliding grooves are opened on the outer surface of the shaft (1), and an annular sleeve (4) is slidably connected inside the two sliding grooves.

5. The high-rigidity spindle structure of a horizontal machining center according to claim 4, characterized in that: The outer wall of the annular sleeve (4) is bolted to the outer wall of the two connecting plates (503), and one end of the outer wall of the shaft (1) is bolted to the two metal connectors (501). The interior of the annular sleeve (4) is a hollow structure.

6. The high-rigidity spindle structure of a horizontal machining center according to claim 4, characterized in that: The inner surface of the annular sleeve (4) is fixedly connected to two connecting plates (601) and four support frames (610) respectively. The coil (604) fully wraps around the inner surface of the annular sleeve (4). The liquid outlet of the liquid inlet pipe (611) is connected to the liquid inlet of the circulating pump (602).

Images