Main shaft structure of numerical control light machine

Abstract

The utility model discloses a main shaft structure of a numerical control light machine, which comprises a shaft core, the outer side of the shaft core is rotatably connected with a shaft sleeve, the outer side of the shaft sleeve is fixedly connected with a plurality of groups of connecting seats, the upper end and the lower end of the shaft sleeve are respectively provided with an end cover, the end covers are fixedly connected with the shaft sleeve through anchor bolts, and the lower side of the shaft core is provided with a cutter seat. A containing groove is formed in the upper side of the inner wall of the shaft sleeve. The oil plug is pulled out of the oil injection hole manually, then the shifting block is shifted to enable the oil injection hole to be communicated with the oil inlet hole, then lubricating oil is injected into the oil box, and when the shaft core rotates, the vertical rod fixedly connected with the shaft core drives the oil box to rotate, so that the oil outlet hole formed in the inner side of the oil box is intermittently communicated with the oil injection groove formed in the surface of the shaft core. Lubricating oil enters the oil injection groove and then is fully distributed between the shaft core and the shaft sleeve under the action of rotation, lubricating dead angles can be avoided, meanwhile, the lubricating oil can be stored through the oil box, the service time of the lubricating oil is prolonged under the action of intermittent communication, and the workload is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control optical machines, in particular to a main axis structure of a numerical control optical machine. Background Art

[0002] With the development of science and technology, CNC machining centers have been widely used in various processing factories. CNC machining centers can automatically cut materials. At the same time, in order to facilitate the application of different materials, replaceable tools will be set up, and the spindle of the CNC optical machine will drive the clamping and rotating tools.

[0003] The existing patent number CN217750988U discloses a spindle structure of a CNC optical machine. The spindle structure of the CNC optical machine includes a shaft core, which serves as a transmission structure to drive the tool to rotate, a shaft sleeve, which is movably sleeved on the outside of the shaft core and is used to fix the spindle to the CNC optical machine, and a tool seat, which is movably connected to the front end of the shaft core and is used to fix the tool; an oil injection structure, which is distributed on the shaft core and the shaft sleeve, and is used to inject lubricating oil into the gap between the shaft core and the shaft sleeve. In the utility model, the clamping device is detachable, which is conducive to maintenance management. At the same time, it can be adapted to a variety of tools, greatly improving the selectivity of tools. In addition, it is easy to add lubricating oil, and the lubricating oil can be quickly and evenly filled into the gap between the shaft core and the shaft sleeve.

[0004] In the prior art, the lubricating oil is filled by injecting the lubricating oil into the oil guide groove and then rotating the shaft core. However, when the spindle is placed at a vertical or lateral angle, the filled lubricating oil can only flow to the bottom of the oil filling hole and cannot lubricate the top of the oil filling hole, resulting in a lubrication dead corner. At the same time, attention must be paid to oil filling and maintenance at all times during the processing, resulting in increased workload. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In view of the above problems existing in the spindle structure of an existing CNC optical machine, the present utility model is proposed.

[0007] Therefore, the purpose of the utility model is to provide a spindle structure for a CNC optical machine, which is designed to solve the problem that "in the prior art, the lubricating oil is injected into the oil guide groove and then rotated with the shaft core to complete the filling of the lubricating oil, but when the spindle is placed at a vertical and lateral angle, the filled lubricating oil can only flow to the bottom of the oil filling hole and cannot lubricate the top of the oil filling hole, resulting in a lubrication dead corner. At the same time, attention must be paid to oiling and maintenance at all times during the processing, resulting in increased workload."

[0008] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0009] A spindle structure of a numerically controlled optical machine, comprising:

[0010] The main unit comprises an axis core, the outer side of the axis core is rotatably connected to a shaft sleeve, and the outer side of the shaft sleeve is fixedly connected to multiple sets of connecting seats, the upper and lower ends of the shaft sleeve are both provided with end covers, and the end covers are both fixedly connected to the shaft sleeve through anchor bolts, the lower side of the axis core is provided with a tool seat, and the upper side of the inner wall of the shaft sleeve is provided with a placement groove;

[0011] The lubrication unit comprises an oil box rotatably connected to the inner wall of the placement groove, and a plurality of groups of balls are arranged on the lower side of the oil box, the oil box is movably connected to the shaft core, the inner surface of the oil box close to the shaft core is provided with four groups of vertical grooves and oil outlet holes, the upper surface of the oil box is provided with an oil inlet hole, the upper side of the oil box is rotatably connected to a rotating seat, and the interior of the rotating seat is provided with an oil filling hole matching the oil inlet hole, and an oil filling assembly is arranged on the upper side of the oil filling hole.

[0012] As a preferred solution of the spindle structure of a CNC optical machine described in the utility model, the oil filling assembly includes an oil plug inserted into the oil filling hole, and a shift block is provided on one side of the oil plug, the oil plug and the shift block are fixedly connected by a connecting strip, the lower end of the shift block is fixedly connected to the rotating seat, and the connecting strip is made of rubber material.

[0013] As a preferred solution of the spindle structure of a CNC optical machine described in the utility model, four groups of oil filling grooves are opened on the outer surface of the shaft core, and the upper ends of the oil filling grooves are all connected to the oil outlet holes.

[0014] As a preferred solution of the spindle structure of a CNC optical machine described in the utility model, wherein: the insides of the four groups of vertical slots are all engaged and connected with vertical rods, and the vertical rods are all fixedly connected to the shaft core.

[0015] As a preferred solution of the spindle structure of a CNC optical machine described in the utility model, wherein: a circular ring is fixedly connected to the outer surface of the rotating seat, a limiting groove is opened inside the upper end cover, and the limiting groove is rotatably connected to the circular ring, and the outer surface of the rotating seat is rotatably connected to the end cover.

[0016] As a preferred solution of the spindle structure of a CNC optical machine described in the utility model, wherein: an anti-slip ring is fixedly connected to the upper side of the rotating seat, and the rotating seat is rotatably connected to the shaft core, and the anti-slip ring is made of rubber material.

[0017] Beneficial effects of the utility model:

[0018] Manually pull the oil plug out of the oil filling hole, then turn the dial block to rotate so that the oil filling hole is connected to the oil inlet hole, then inject the lubricating oil into the oil box, and then insert the oil plug into the oil filling hole. When the shaft core rotates, the vertical rod fixedly connected to the shaft core drives the oil box to rotate, so that the oil outlet hole on the inside of the oil box is intermittently connected with the anti-slip ring on the surface of the shaft core, so that the lubricating oil enters the anti-slip ring and then spreads between the shaft core and the sleeve under the action of rotation. Not only can lubrication dead corners be avoided, but the lubricating oil can also be stored in the oil box. The use time of the lubricating oil is extended due to the intermittent connection, thereby reducing the workload and the cost of using the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0020] Figure 1 A three-dimensional structural schematic diagram of a spindle structure of a CNC optical machine proposed by the utility model;

[0021] Figure 2 for Figure 1 A schematic cross-sectional view of the three-dimensional structure;

[0022] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the rotating seat;

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the oil box.

[0025] In the figure: 100, main unit; 101, shaft core; 102, shaft sleeve; 103, connecting seat; 104, placement groove; 105, tool seat; 106, end cover; 200, lubrication unit; 201, oil box; 202, ball bearing; 203, vertical groove; 204, oil outlet hole; 205, oil inlet hole; 206, oil filling assembly; 206a, oil plug; 206b, shift block; 206c, connecting strip; 207, anti-slip ring; 208, vertical rod; 209, rotating seat; 210, oil filling groove. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0030] Reference Figure 1-5 The utility model provides a spindle structure of a CNC optical machine, comprising:

[0031] The main unit 100 includes: a shaft core 101, a shaft sleeve 102 is rotatably connected to the outer side of the shaft core 101, and a plurality of connecting seats 103 are fixedly connected to the outer side of the shaft sleeve 102, end covers 106 are provided at both upper and lower ends of the shaft sleeve 102, and the end covers 106 are fixedly connected to the shaft sleeve 102 through anchor bolts, a tool seat 105 is provided on the lower side of the shaft core 101, and a placement groove 104 is provided on the upper side of the inner wall of the shaft sleeve 102;

[0032] The lubrication unit 200 includes an oil box 201 rotatably connected to the inner wall of the placement groove 104, and a plurality of groups of balls 202 are arranged on the lower side of the oil box 201. The oil box 201 is movably connected to the shaft core 101. Four groups of vertical grooves 203 and oil outlet holes 204 are provided on the inner surface of the oil box 201 close to the shaft core 101. An oil inlet hole 205 is provided on the upper surface of the oil box 201. A rotating seat 209 is rotatably connected to the upper side of the oil box 201, and an oil filling hole matching the oil inlet hole 205 is provided inside the rotating seat 209, and an oil filling assembly 206 is provided on the upper side of the oil filling hole.

[0033] Among them, the oil filling component 206 includes an oil plug 206a which is inserted into the oil filling hole, and a shift block 206b is provided on one side of the oil plug 206a. The oil plug 206a and the shift block 206b are fixedly connected by a connecting strip 206c. The lower end of the shift block 206b is fixedly connected to the rotating seat 209. The connecting strip 206c is made of rubber material. By pulling out the oil plug 206a, the lubricating oil can be injected into the oil filling hole and the oil inlet hole 205. By shifting the shift block 206b, the rotating seat 209 can be rotated. The connecting strip 206c prevents the oil plug 206a from falling off after being pulled out.

[0034] Furthermore, four sets of anti-slip ring oil filling grooves 210 are opened on the outer surface of the shaft core 101, and the upper ends of the oil filling grooves 210 are connected to the oil outlet holes 204, so that the lubrication inside the oil box 201 can be discharged through the oil outlet holes 204, and then flow into the oil filling grooves 210, and enter the gap between the shaft core 101 and the sleeve 102 along the oil filling grooves 210 for lubrication.

[0035] Furthermore, the inside of the four groups of vertical grooves 203 are all engaged and connected with vertical rods 208, and the vertical rods 208 are all fixedly connected to the shaft core 101. When the shaft core 101 rotates, the vertical rods 208 fixedly connected to the shaft core 101 drive the oil box 201 to rotate through the vertical grooves 203, so that the oil filling groove 210 is intermittently connected with the oil outlet hole 204, and the lubricating oil in the oil box 201 can intermittently enter the oil filling groove 210.

[0036] Furthermore, a circular ring is fixedly connected to the outer surface of the rotating seat 209, a limiting groove is opened inside the upper end cover 106, and the limiting groove is rotatably connected to the circular ring, and the outer surface of the rotating seat 209 is rotatably connected to the end cover 106. The shifting block 206b can rotate the rotating seat 209 inside the end cover 106 in real time, so as to align the oil filling hole with the oil inlet hole 205.

[0037] Furthermore, an anti-slip ring 207 is fixedly connected to the upper side of the rotating seat 209, and the rotating seat 209 is rotatably connected to the shaft core 101. The anti-slip ring 207 is made of rubber material to increase the friction between the rotating seat 209 and the shaft core 101, so that the rotating seat 209 can only be rotated by manual turning.

[0038] During use, the oil plug 206a is manually pulled out from the oil filling hole, and then the shift block 206b is rotated to connect the oil filling hole with the oil inlet hole 205, and then the lubricating oil is injected into the oil box 201, and then the oil plug 206a is inserted into the oil filling hole. When the shaft core 101 rotates, the vertical rod 208 fixedly connected to the shaft core 101 drives the oil box 201 to rotate, so that the oil outlet hole 204 opened on the inner side of the oil box 201 is intermittently connected with the oil filling groove 210 opened on the surface of the shaft core 101, so that the lubricating oil enters the anti-slip ring oil filling groove 210, and then under the action of the mutual rotation of the shaft core 101 and the shaft sleeve 102, the lubricating oil fills the gap between the shaft core 101 and the shaft sleeve 102.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A spindle structure of a CNC optical machine, characterized in that: include: The main unit (100) comprises an axis core (101), the outer side of the axis core (101) is rotatably connected to a shaft sleeve (102), and the outer side of the shaft sleeve (102) is fixedly connected to multiple groups of connection seats (103), the upper and lower ends of the shaft sleeve (102) are both provided with end covers (106), and the end covers (106) are both fixedly connected to the shaft sleeve (102) through anchor bolts, the lower side of the axis core (101) is provided with a tool seat (105), and the upper side of the inner wall of the shaft sleeve (102) is provided with a placement groove (104); The lubrication unit (200) comprises an oil box (201) rotatably connected to the inner wall of the placement groove (104), and a plurality of groups of balls (202) are arranged on the lower side of the oil box (201), the oil box (201) is movably connected to the shaft core (101), the inner surface of the oil box (201) close to the shaft core (101) is provided with four groups of vertical grooves (203) and oil outlet holes (204), the upper surface of the oil box (201) is provided with an oil inlet hole (205), the upper side of the oil box (201) is rotatably connected to a rotating seat (209), and an oil filling hole matching the oil inlet hole (205) is arranged inside the rotating seat (209), and an oil filling assembly (206) is arranged on the upper side of the oil filling hole.

2. The spindle structure of a CNC optical machine according to claim 1, characterized in that: The oil filling assembly (206) comprises an oil plug (206a) inserted into and connected to the oil filling hole, and a shift block (206b) is provided on one side of the oil plug (206a), the oil plug (206a) and the shift block (206b) are fixedly connected via a connecting strip (206c), the lower end of the shift block (206b) is fixedly connected to a rotating seat (209), and the connecting strip (206c) is made of rubber material.

3. The spindle structure of a CNC optical machine according to claim 2, characterized in that: Four groups of oil injection grooves (210) are provided on the outer surface of the shaft core (101), and the upper ends of the oil injection grooves (210) are all connected to the oil outlet holes (204).

4. The spindle structure of a CNC optical machine according to claim 3, characterized in that: The interiors of the four groups of vertical grooves (203) are all engaged with vertical rods (208), and the vertical rods (208) are all fixedly connected to the shaft core (101).

5. The spindle structure of a CNC optical machine according to claim 4, characterized in that: The outer surface of the rotating seat (209) is fixedly connected with a circular ring, and a limiting groove is provided inside the upper end cover (106), and the limiting groove is rotatably connected to the circular ring, and the outer surface of the rotating seat (209) is rotatably connected to the end cover (106).

6. The spindle structure of a CNC optical machine according to claim 5, characterized in that: An anti-slip ring (207) is fixedly connected to the upper side of the rotating seat (209), and the rotating seat (209) is rotatably connected to the shaft core (101), and the anti-slip ring (207) is made of rubber material.

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