A five-axis machining center spindle head rotary positioning device

Abstract

This utility model discloses a rotary positioning device for a five-axis machining center spindle head, including a protective component and a positioning component. The protective component includes a base, with two hinge seats detachably mounted on the upper end of the base. Each hinge seat has a damper hinged to its upper end, and a buffer spring is mounted on the side surface of the damper. An arc-shaped plate is fixedly connected to the upper end of the damper. Two buffer columns are detachably mounted on the upper end of the base. The positioning component includes a support arm mounted on the upper end of the base, with a DC motor mounted on the upper end of the support arm and a helical gear mounted inside the upper end of the support arm. This utility model, through the combination of the protective component and the positioning component, can not only significantly improve the rotary positioning effect of the spindle head body, thereby enhancing the practicality of the rotary positioning device, but also facilitates shock absorption and heat dissipation for the rotary positioning device through the cooperation of the above structures, thus extending its service life.

Description

Technical Field

[0001] This utility model relates to the field of positioning in five-axis machining centers, specifically a spindle head rotation positioning device for a five-axis machining center. Background Technology

[0002] Five-axis CNC machine tools have a significant impact on a country's aerospace, military, and precision instrument industries. Internationally, five-axis CNC technology is considered a marker of a country's industrialization level. In the woodworking machinery industry, the level of five-axis CNC woodworking machine tools represents the manufacturing level of CNC machine tools for woodworking machinery enterprises. The spindle head of a five-axis machining center is a core component of a high-end woodworking CNC five-axis machining center. The "rotational positioning device for the spindle head of a woodworking five-axis machining center" disclosed in application number "201821223376" is also an increasingly mature technology. Its positioning in the C-axis direction is determined by using an origin sensing block and a limit sensing block in conjunction with a sensor to determine the origin position and positive and negative rotation limits. The initial position is determined by adjusting the relative position of the small synchronous pulley and the guide tube. The positioning in the B-axis direction is determined by a sensor and a sensing block. The device establishes the B-axis zero position, enabling the spindle head to rotate continuously 360° along the B-axis direction. This results in accurate positioning, a longer spindle head lifespan, and higher machining precision. However, this rotary positioning device has the following drawbacks: While it does achieve a positioning effect through the use of a timing pulley and timing belt, the effect is not significant enough. Therefore, it is necessary to provide a rotary positioning device that can significantly improve the positioning effect and enhance practicality. Furthermore, the protective effect of this rotary positioning device is insufficient, affecting its lifespan. Therefore, it is necessary to provide a rotary positioning device that improves protection and extends its lifespan. Utility Model Content

[0003] This utility model provides a five-axis machining center spindle head rotary positioning device, which aims to solve the problems that the positioning effect of existing rotary positioning devices is not significant enough, and the protection effect needs to be improved.

[0004] To achieve the above objectives, this utility model provides a five-axis machining center spindle head rotation positioning device, including a protective component and a positioning component;

[0005] The protective component includes a base, on which two hinge seats are detachably mounted. Each of the two hinge seats is hinged to a damper at its upper end. A buffer spring is mounted on the side surface of the damper. An arc-shaped plate is fixedly connected to the upper end of the damper. Two buffer posts are detachably mounted on the upper end of the base.

[0006] The positioning assembly includes a support arm mounted on the upper end of a base. A DC motor is mounted on the upper end of the support arm, and a spur gear is installed inside the upper end of the support arm. A connecting belt is meshed with the side surface of the spur gear, and the spur gear is connected to the DC motor via the connecting belt. A first synchronous pulley is mounted on the upper end of the spur gear, and a positioning bearing is mounted on the lower end of the first synchronous pulley. A second synchronous pulley is mounted on one side of the first synchronous pulley, and a synchronous belt connects the first and second synchronous pulleys. A main shaft head body is connected to the upper end of the second synchronous pulley. A micro motor is mounted on the lower end of the support arm, and a cooling fan is mounted on the upper end of the micro motor.

[0007] As a preferred embodiment of this utility model, the upper end of the base has two positioning grooves, the lower end of the buffer column is inserted into the inside of the positioning grooves, and the two sides of the base have mounting grooves, and the hinge seat is installed inside the mounting grooves.

[0008] In a preferred embodiment of this utility model, a hinge block is fixedly connected to the lower end of the damper, and the hinge block and the hinge seat are hinged to each other.

[0009] As a preferred embodiment of this utility model, a protective cover is installed at the upper end of the support arm, and a protective groove is opened at the lower end of the support arm. The micro motor and the cooling fan are both installed inside the protective groove.

[0010] As a preferred embodiment of this utility model, the lower end of the support arm is provided with an annular groove, a protective net is installed at the lower end of the support arm, and an installation ring is fixedly connected to the upper end of the protective net, with the installation ring installed inside the annular groove.

[0011] As a preferred embodiment of this utility model, the output end of the micro motor is fixedly connected to a limiting shaft, and a limiting hole is opened on the surface of the cooling fan, with the limiting shaft inserted into the limiting hole.

[0012] In a preferred embodiment of this invention, the buffer column is made of rubber.

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

[0014] 1. When the spindle head body is in use, the DC motor as the power output mechanism can improve the rotational accuracy of the spindle head body. At the same time, the rotation of the connecting belt can drive the first synchronous pulley to rotate. The presence of the bearing can further enhance the rotational positioning strength. As the first synchronous pulley and the synchronous belt drive the second synchronous pulley to rotate, the rotational positioning strength of the spindle head body can be further enhanced. Compared with the rotational positioning device in the existing technology "A Rotational Positioning Device for a Woodworking Five-Axis Machining Center Spindle Head", this utility model can significantly enhance the rotational positioning effect of the spindle head body through the above-mentioned structure cooperation, thereby enhancing the practicality of the rotational positioning device.

[0015] 2. When the rotary positioning device is in use, the rubber buffer column can initially improve the protection effect of the support arm. In conjunction with the damper and buffer spring, the shock absorption effect of the rotary positioning device can be further enhanced, so as to improve the stability of use. Finally, the micro motor at the end of the support arm drives the cooling fan to rotate, which can achieve the heat dissipation effect. Compared with the rotary positioning device in the existing technology "a rotary positioning device for the spindle head of a woodworking five-axis machining center", this utility model can improve the protection effect of the rotary positioning device through the above-mentioned structure, thereby extending its service life. Attached Figure Description

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

[0017] Figure 2 This is an anatomical diagram of the protective component structure of this utility model;

[0018] Figure 3 This is an anatomical diagram of the support arm structure of this utility model;

[0019] Figure 4 This is an anatomical diagram of the positioning component structure of this utility model;

[0020] Figure 5 This is a structural disassembly diagram of the heat dissipation mechanism of this utility model.

[0021] In the diagram: 100, protective component; 101, base; 102, hinge seat; 103, damper; 104, buffer spring; 105, arc-shaped plate; 106, buffer column; 111, positioning groove; 112, mounting groove; 121, hinge block; 200, positioning component; 201, support arm; 202, DC motor; 203, helical gear; 204, connecting belt; 205, positioning bearing; 206, first synchronous pulley; 207, second synchronous pulley; 208, synchronous belt; 209, spindle head body; 210, micro motor; 220, cooling fan; 211, protective cover; 212, protective groove; 221, annular groove; 222, protective net; 223, mounting ring; 231, limiting shaft; 232, limiting hole. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] Please see Figures 1-5 This utility model provides a five-axis machining center spindle head rotation positioning device, including a protective component 100 and a positioning component 200;

[0025] The protective component 100 includes a base 101, with two hinge seats 102 detachably mounted on the upper end of the base 101. Each of the two hinge seats 102 is hinged to a damper 103 at its upper end. A buffer spring 104 is mounted on the side surface of the damper 103. An arc-shaped plate 105 is fixedly connected to the upper end of the damper 103. Two buffer posts 106 are detachably mounted on the upper end of the base 101.

[0026] The positioning assembly 200 includes a support arm 201 mounted on the upper end of the base 101. A DC motor 202 is mounted on the upper end of the support arm 201. A swashplate 203 is mounted inside the upper end of the support arm 201. A connecting belt 204 is meshed with the side surface of the swashplate 203. The swashplate 203 is connected to the DC motor 202 through the connecting belt 204. A first synchronous pulley 206 is mounted on the upper end of the swashplate 203. A positioning bearing 205 is mounted on the lower end of the first synchronous pulley 206. A second synchronous pulley 207 is mounted on one side of the first synchronous pulley 206. A synchronous belt 208 is connected between the first synchronous pulley 206 and the second synchronous pulley 207. A spindle head body 209 is connected to the upper end of the second synchronous pulley 207. A micro motor 210 is mounted on the lower end of the support arm 201. A cooling fan 220 is mounted on the upper end of the micro motor 210.

[0027] In one specific embodiment, the protective component 100, in conjunction with the positioning component 200, not only significantly improves the rotational positioning effect of the spindle head body 209, thereby enhancing the practicality of the rotational positioning device, but also facilitates shock absorption and heat dissipation for the rotational positioning device, thus extending its service life. During use, the DC motor 202, acting as the power output mechanism, improves the rotational accuracy of the spindle head body 209. The rotating connecting belt 204 then drives the first synchronous pulley 206 to rotate, and the presence of the positioning bearing 205 further enhances the rotational positioning strength. The first synchronous pulley 206, in conjunction with the synchronous belt 208, drives the second synchronous pulley 207 to rotate, which further enhances the rotational positioning strength of the spindle head body 209, thereby enhancing the practicality of the rotational positioning device. During use, the rubber buffer column 106 can initially improve the protection effect of the support arm 201. In conjunction with the damper 103 and the buffer spring 104, the shock absorption effect of the rotational positioning device can be further enhanced, thereby improving the stability of use. Finally, the micro motor 210 at the end of the support arm 201 drives the cooling fan 220 to rotate, which can achieve the heat dissipation effect, thereby extending the service life of the rotational positioning device.

[0028] Please see Figure 2 The upper end of the base 101 has two positioning grooves 111, the lower end of the buffer column 106 is inserted into the inside of the positioning groove 111, and the two sides of the base 101 are provided with mounting grooves 112, and the hinge seat 102 is installed inside the mounting groove 112.

[0029] In one specific embodiment, the positioning groove 111 can improve the ease of disassembling and assembling the buffer post 106, and the mounting groove 112 can improve the installation stability of the hinge seat 102.

[0030] Please see Figure 2 The lower end of the damper 103 is fixedly connected to a hinge block 121, and the hinge block 121 and the hinge seat 102 are hinged to each other.

[0031] In one specific embodiment, the hinge block 121 and the hinge seat 102 are hinged to each other, thereby improving the smoothness and convenience of angle adjustment of the damper 103.

[0032] Please see Figures 3-5 The upper end of the support arm 201 is equipped with a protective cover 211, and the lower end of the support arm 201 is provided with a protective groove 212. The micro motor 210 and the cooling fan 220 are both installed inside the protective groove 212.

[0033] In one specific embodiment, the protective cover 211 is used to protect the swashplate 203, and the protective groove 212 can improve the installation protection of the cooling fan 220.

[0034] Please see Figures 3-5 The lower end of the support arm 201 is provided with an annular groove 221, and a protective net 222 is installed at the lower end of the support arm 201. An installation ring 223 is fixedly connected to the upper end of the protective net 222, and the installation ring 223 is installed inside the annular groove 221.

[0035] In one specific embodiment, the mounting ring 223 is snapped into the annular groove 221, thereby improving the installation stability and ease of disassembly and replacement between the protective net 222 and the support arm 201.

[0036] Please see Figures 3-5 The output end of the micro motor 210 is fixedly connected to the limiting shaft 231, and the surface of the cooling fan 220 is provided with a limiting hole 232, and the limiting shaft 231 is inserted into the inside of the limiting hole 232.

[0037] In one specific embodiment, the limiting shaft 231 is inserted into the limiting hole 232. When the micro motor 210 rotates the limiting shaft 231, it can rotate the cooling fan 220 to achieve a cooling effect.

[0038] Please see Figures 3-5 The buffer column 106 is made of rubber.

[0039] In one specific embodiment, the rubber-made buffer post 106 can further improve the buffering effect and enhance the protection of the support arm 201.

[0040] Working Principle: During use, the DC motor 202, acting as the power output mechanism, improves the rotational accuracy of the spindle head body 209. The connecting belt 204 then rotates, causing the first synchronous pulley 206 to rotate. The presence of the positioning bearing 205 further enhances the rotational positioning strength. The first synchronous pulley 206, in conjunction with the synchronous belt 208, rotates the second synchronous pulley 207, further strengthening the rotational positioning of the spindle head body 209 and enhancing the practicality of the rotational positioning device. During use, the rubber buffer column 106 initially improves the protection of the support arm 201. Combined with the damper 103 and buffer spring 104, this further enhances the shock absorption effect of the rotational positioning device, thereby improving operational stability. Finally, the micro motor 210 at the end of the support arm 201, driving the cooling fan 220, provides heat dissipation, thus extending the service life of the rotational positioning device.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A five-axis machining center spindle head rotation positioning device, characterized by, include: A protective assembly (100) includes a base (101), on which two hinge seats (102) are detachably mounted. Each of the two hinge seats (102) is hinged to a damper (103) at its upper end. A buffer spring (104) is mounted on the side surface of the damper (103). An arc-shaped plate (105) is fixedly connected to the upper end of the damper (103). Two buffer posts (106) are detachably mounted on the upper end of the base (101). A positioning assembly (200) includes a support arm (201) mounted on the upper end of a base (101). A DC motor (202) is mounted on the upper end of the support arm (201). A swashplate (203) is installed inside the upper end of the support arm (201). A connecting belt (204) meshes with the side surface of the swashplate (203). The swashplate (203) is connected to the DC motor (202) via the connecting belt (204). A first synchronous pulley is mounted on the upper end of the swashplate (203). 206), a positioning bearing (205) is installed at the lower end of the first synchronous pulley (206), a second synchronous pulley (207) is installed on one side of the first synchronous pulley (206), a synchronous belt (208) is connected between the first synchronous pulley (206) and the second synchronous pulley (207), a main shaft head body (209) is connected to the upper end of the second synchronous pulley (207), a micro motor (210) is installed at the lower end of the support arm (201), and a cooling fan (220) is installed at the upper end of the micro motor (210).

2. The spindle head rotating positioning device of a five-axis machining center according to claim 1, characterized in that: The upper end of the base (101) has two positioning grooves (111), the lower end of the buffer column (106) is inserted into the positioning groove (111), and the two sides of the base (101) are provided with mounting grooves (112), and the hinge seat (102) is installed inside the mounting groove (112).

3. The spindle head rotating positioning device of a five-axis machining center according to claim 1, characterized in that: The lower end of the damper (103) is fixedly connected to a hinge block (121), and the hinge block (121) and the hinge seat (102) are hinged to each other.

4. The spindle head rotating positioning device of a five-axis machining center according to claim 1, characterized in that: The upper end of the support arm (201) is equipped with a protective cover (211), and the lower end of the support arm (201) is provided with a protective groove (212). The micro motor (210) and the cooling fan (220) are both installed inside the protective groove (212).

5. The spindle head rotating positioning device of a five-axis machining center according to claim 1, characterized in that: The lower end of the support arm (201) is provided with an annular groove (221), and a protective net (222) is installed at the lower end of the support arm (201). An installation ring (223) is fixedly connected to the upper end of the protective net (222), and the installation ring (223) is installed inside the annular groove (221).

6. The spindle head rotating positioning device of a five-axis machining center according to claim 1, characterized in that: The output end of the micro motor (210) is fixedly connected to a limiting shaft (231), and a limiting hole (232) is opened on the surface of the cooling fan (220). The limiting shaft (231) is inserted into the inside of the limiting hole (232).

7. The spindle head rotating positioning device of a five-axis machining center according to claim 1, characterized in that: The buffer column (106) is made of rubber.

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