Swing head internal fluid medium transmission structure
By designing a combined structure of the shaft sleeve, central shaft and spindle box inside the swing head, using the sealed grey ring to achieve efficient transmission and rotational damping of fluid media, the leakage and angle drift problems caused by the complex pipelines inside the swing head are solved, and the problems of leakage and angle drift caused by the complexity of the internal pipes are improved. The reliability and transmission efficiency of the structure are achieved.
Patent Information
- Application Number
- CN202421185612.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-28
AI Technical Summary
Due to the numerous pipelines inside the swing head, the fluid medium pipelines and joints are often leaked, affecting reliability. The numerous internal pipelines lead to increased structure, increased mass, reduced rigidity, and serious angular drift problems when power is cut off.
A rotating fluid medium transmission structure including a shaft sleeve, a central shaft and a spindle box is designed. Through the combination of sealed grey rings of the shaft sleeve oil passage and the central shaft ring oil passage, the efficient transmission and rotational damping of the fluid medium are achieved. Reduce the risk of leakage and angle drift.
The internal pipeline arrangement of the swing head is simplified, the reliability and rigidity of the structure is improved, the maintenance process is reduced, and the fluid leakage and angular drift during the rotational movement is effectively prevented, and the overall transmission efficiency and safety are improved.
Smart Images
Figure CN222209903U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a swing head, in particular to a fluid medium transmission structure inside a swing head. Background Art
[0002] In the field of mechanics and engineering, "swing head" usually refers to a head structure that can rotate or swing, and it can move freely within a certain range to adapt to different work requirements or realize specific functions. The swing head is usually combined with a transmission system, a control system, etc. to achieve precise positioning, rotation or operation. Common swing heads often directly transmit fluid media through high-pressure oil pipes or air pipes arranged in the internal cavity of the swing head. Due to the large number of pipelines and the need for the swing head itself to rotate, the pipelines in the inner cavity must perform reciprocating torsional motion, which often leads to frequent leakage of the fluid medium pipelines and joints inside the swing head, seriously affecting the reliability of the swing head. At the same time, the numerous internal pipelines also lead to the increase of the swing head body structure, increased mass, reduced rigidity, and angle drift when the power is off. Therefore, the utility model provides a fluid medium transmission structure inside the swing head. Utility Model Content
[0003] The main purpose of the utility model is to provide a fluid medium transmission structure inside a swing head to solve the problems raised in the related art that the swing head has many pipelines and the swing head itself needs to rotate, so that the pipelines in the inner cavity must do reciprocating torsional motion, which often leads to frequent leakage of the fluid medium pipelines and joints inside the swing head, seriously affecting the reliability of the swing head. At the same time, the numerous internal pipelines also lead to the enlargement of the swing head body structure, increased mass, reduced rigidity, and angle drift during power outages.
[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a fluid medium transmission structure inside a swing head is provided, including a sleeve, a sleeve oil passage is provided in the sleeve, a center shaft is provided at one end of the sleeve, a center shaft ring oil passage is provided in the center shaft, a spindle box is provided at one end of the center shaft, and an electric spindle is provided in the spindle box.
[0005] Furthermore, the outer wall of one end of the sleeve is installed concentrically with the inner ring of the center shaft and sealed with each other, and the other end of the center shaft is rigidly fixed at the center of one side of the spindle box. A through hole is opened through the center of the top of the spindle box, and the electric spindle is embedded and fixed in the through hole of the spindle box.
[0006] Furthermore, the shaft sleeve oil passage is fixedly mounted on the top of the shaft sleeve, the shaft sleeve oil passage is L-shaped, and a shaft sleeve oil inlet is fixedly mounted on the other end of the shaft sleeve oil passage.
[0007] Furthermore, a plurality of sleeve oil outlets communicating with the sleeve oil passage are formed through the top of the sleeve outer wall.
[0008] Furthermore, the inner ring of the central shaft is provided with a plurality of central shaft ring oil passages, and a sealing Gly ring is provided between the two ends of the central shaft ring oil passages.
[0009] Furthermore, a central shaft oil passage is respectively opened at the center of the top and bottom of the other end of the central shaft, and a plurality of central shaft oil inlets communicating with the central shaft oil passage are opened through the top and bottom of the inner ring of the central shaft near one end.
[0010] Furthermore, a fluid channel is provided inside the spindle box body.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] The rotating fluid medium transmission structure can greatly simplify the internal pipeline layout of the swing head, replacing the original numerous oil and gas pipelines. The structure is reliable, maintenance links are few, and reliability is greatly improved. The internal structure of the swing head is compact and rigid. Multiple sealing grid rings are installed between the central shaft ring oil circuits in the central shaft, which effectively increases the A-axis rotation damping and effectively prevents the A-axis angle drift when the swing head suddenly loses power, preventing the risk of damage to the workpiece caused by the A-axis angle drift when the swing head suddenly loses power. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the overall cutaway of the utility model;
[0014] Figure 2 It is a schematic diagram of the central axis of the utility model;
[0015] Figure 3 It is a schematic diagram of the cutaway of the shaft sleeve of the utility model;
[0016] Illustration Description:
[0017] 1. Shaft sleeve; 2. Center shaft; 3. Spindle box; 4. Electric spindle; 5. Shaft sleeve oil inlet; 6. Shaft sleeve oil passage; 7. Shaft sleeve oil outlet; 8. Center shaft ring oil passage; 9. Center shaft oil inlet; 10. Center shaft oil passage; 11. Sealing Gly ring. DETAILED DESCRIPTION
[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.
[0019] See also Figures 1 to 3The present embodiment provides a fluid medium transmission structure inside a swing head, including a sleeve 1, a sleeve oil passage 6 is provided in the sleeve 1, a center shaft 2 is provided at one end of the sleeve 1, a center shaft ring oil passage 8 is provided in the center shaft 2, a spindle box 3 is provided at one end of the center shaft 2, and an electric spindle 4 is provided in the spindle box 3.
[0020] The outer wall of one end of the sleeve 1 is installed concentrically with the inner ring of the center shaft 2 and sealed with each other. The other end of the center shaft 2 is rigidly fixed at the center of one side of the spindle box 3. A through hole is opened at the center of the top of the spindle box 3, and the electric spindle 4 is embedded and fixed in the through hole of the spindle box 3. It should be added that the sleeve 1 is rigidly connected to the A-axis box body and is relatively fixed to the A-axis box body. The outer ring of the center shaft 2 is supported by the swing head turntable bearing and driven by a direct drive torque motor to perform rotational motion, directly driving the spindle box 3 and the electric spindle 4 to perform A-axis rotational motion. The center shaft 2 rotates relative to the sleeve 1, and the shaft 1 is connected to the A-axis box body and does not rotate.
[0021] The sealing fit between the sleeve 1 and the central shaft 2 ensures that the fluid does not leak from the interface.
[0022] The sleeve oil passage 6 is fixedly mounted on the top of the inside of the sleeve 1, and the sleeve oil passage 6 is L-shaped, and the other end of the sleeve oil passage 6 is fixedly mounted with a sleeve oil inlet 5. It should be added that the sleeve oil inlet 5 is fixedly mounted on the top of the other end of the sleeve 1, so that various fluid media can enter the sleeve oil passage 6 through the sleeve oil inlet 5.
[0023] The top of the outer wall of the sleeve 1 is penetrated by a plurality of sleeve oil outlets 7 which are in communication with the sleeve oil passage 6. It should be added that each sleeve oil outlet 7 corresponds to a central shaft ring oil passage 8 one by one.
[0024] Due to the one-to-one correspondence between the sleeve oil outlet 7 and the center shaft ring oil circuit 8, the possibility of fluid leakage is reduced and the sealing performance and reliability are improved. At the same time, the fluid medium can flow directly and efficiently from the sleeve oil outlet 7 into the center shaft ring oil circuit 8, reducing the resistance and loss of the fluid during transmission and improving the overall efficiency.
[0025] The inner ring of the center shaft 2 is provided with a plurality of center shaft ring oil passages 8, and a sealing grid ring 11 is provided between the two ends of the two center shaft ring oil passages 8. It should be added that: the provision of a plurality of sealing grid rings 11 effectively increases the A-axis rotation damping, effectively prevents the A-axis angle drift (<0.01°) when the swing head is suddenly powered off, and prevents the risk of damage to the workpiece caused by the A-axis angle drift when the swing head is suddenly powered off.
[0026] A central shaft oil passage 10 is provided at the top and the bottom center of the other end of the central shaft 2, and a plurality of central shaft oil inlets 9 are provided through the top and the bottom of the inner ring of the central shaft 2 near one end and communicate with the central shaft oil passage 10. It should be added that the central shaft oil inlet 9 is the entrance for the fluid medium to enter the central shaft oil passage 10.
[0027] A fluid channel is provided inside the spindle box 3. It should be added that the medium transmitted by the central axis oil passage 10 directly flows through the fluid channel inside the spindle box 3 and finally reaches the target use point of the electric spindle 4 inside the spindle box 3.
[0028] The specific use of the utility model is as follows: first, the fluid medium pipelines required by the electric spindle 4 are connected from the outside of the swing head through the A-axis box to the shaft sleeve oil inlet 5, through the shaft sleeve oil channel 6, out from the shaft sleeve oil outlet 7 into the center shaft ring oil channel 8, and then flow into the center shaft oil inlet 9, through the center shaft oil channel 10 into the oil channel in the spindle box 3, and finally transmitted to the target access points of the electric spindle 4. During the operation of the swing head, the center shaft 2 and the shaft sleeve 1 make relative rotational motion, and sealing grid rings 11 are installed between the center shaft ring oil channels 8 in the center shaft 2 to ensure that the fluid medium oil channels are leak-free. At the same time, the A-axis rotation damping is effectively increased to prevent unreliable risks such as A-axis angle drift when the swing head is suddenly powered off.
[0029] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A fluid medium transmission structure inside a swing head, comprising a sleeve (1), characterized in that: A shaft sleeve oil passage (6) is provided in the shaft sleeve (1), a center shaft (2) is provided at one end of the shaft sleeve (1), a center shaft ring oil passage (8) is provided in the center shaft (2), a spindle box (3) is provided at one end of the center shaft (2), and an electric spindle (4) is provided in the spindle box (3).
2. The internal fluid medium transmission structure of a swing head according to claim 1, characterized in that: The outer wall of one end of the sleeve (1) is installed concentrically with the inner ring of the center shaft (2) and they are sealed with each other. The other end of the center shaft (2) is rigidly fixedly installed at the center of one side of the spindle box (3). A through hole is opened through the center of the top of the spindle box (3), and the electric spindle (4) is embedded and fixed in the through hole of the spindle box (3).
3. The internal fluid medium transmission structure of a swing head according to claim 2, characterized in that: The shaft sleeve oil passage (6) is fixedly mounted on the top of the shaft sleeve (1), the shaft sleeve oil passage (6) is L-shaped, and a shaft sleeve oil inlet (5) is fixedly mounted on the other end of the shaft sleeve oil passage (6).
4. The internal fluid medium transmission structure of the swing head according to claim 3, characterized in that: A plurality of shaft sleeve oil outlets (7) communicating with the shaft sleeve oil passage (6) are formed through the top of the outer wall of the shaft sleeve (1).
5. The internal fluid medium transmission structure of the swing head according to claim 4, characterized in that: The inner ring of the central shaft (2) is provided with a plurality of central shaft ring oil passages (8), and a sealing Gley ring (11) is provided between the two ends of the central shaft ring oil passages (8).
6. The internal fluid medium transmission structure of a swing head according to claim 5, characterized in that: A central shaft oil passage (10) is respectively provided at the top and the bottom center of the other end of the central shaft (2), and a plurality of central shaft oil inlets (9) communicating with the central shaft oil passage (10) are provided through the top and the bottom of the inner ring of the central shaft (2) near one end.
7. The internal fluid medium transmission structure of a swing head according to claim 1, characterized in that: A fluid channel is provided inside the main spindle box (3).