Main shaft transmission device of horizontal milling and boring machine

Abstract

The utility model relates to the technical field of milling and boring machine spindles, and discloses a horizontal milling and boring machine spindle transmission device which comprises a spindle transmission mechanism and a spindle body installed in the middle of the spindle transmission mechanism. An electric push rod, a detection rod piece, an oil storage component, a double-magnetic-attraction-position component and a one-way oil conveying valve pipe are arranged in the outer protection box in a sleeved mode, and an open port is formed in one side of the bottom of the outer protection box. According to the utility model, the electric push rod and the double-magnetic-attraction-position component magnetically attract the transmission detection rod piece, so that the detection rod piece is expanded to be in contact with the main shaft body, pressure detection is carried out on multiple different positions of the main shaft body under the state that the main shaft body rotates at a low speed, and pressure data values of the multiple different positions of the main shaft body are recorded; afterwards, the average difference value of a plurality of pressure data values is compared with a standard value to reflect the concentricity precision of the main shaft body in a variable manner, so that timely calibration is facilitated, and the machining quality is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of milling and boring machine spindles, in particular to a horizontal milling and boring machine spindle transmission device. Background Art

[0002] Horizontal boring and milling machine is a kind of mechanical processing equipment which integrates boring and milling in the same machine tool and has a high degree of automation. When in use, it can perform cutting processes such as drilling, boring, reaming, countersinking, milling, grooving, threading, etc. on the workpiece, and has a wide range of uses.

[0003] With the improvement of actual machining requirements, researchers in related fields are constantly improving the research on the spindle structure of horizontal milling and boring machines. For example, the patent document with announcement number CN216176668U proposes "through the coordination between the hydraulic cylinder, the groove plate, the three-way cylinder, the oil spray head and the lubricating oil tank, the hydraulic cylinder of the hydraulic cylinder extends to drive the groove plate to swing, the groove plate swings to drive the piston to move downward, the ball releases the tight fit on the three-way cylinder, the lubricating oil inside the lubricating oil tank reaches the inside of the oil spray head through the oil pipe, and the oil spray head sprays the lubricating oil on the transmission system. When the lubrication effect is achieved, the hydraulic cylinder of the hydraulic cylinder is retracted, and the groove plate swings in the opposite direction to control the ball to reset, which solves the problem of manual lubrication of the boring machine spindle transmission."

[0004] From the above technical content, it can be seen that the prior art uses multiple movable structures to work together to realize the automatic spraying of lubricating oil on the internal transmission system of the milling and boring machine spindle. In reality, the spindle head exposed to the processing environment needs more lubrication and rust protection, but the prior art ignores this point. In addition, with the increase of use time, the spindle of the milling and boring machine will wear and deviate, which is an important factor affecting the processing quality. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a spindle transmission device for a horizontal milling and boring machine, which solves the problems raised by the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a spindle transmission device of a horizontal milling and boring machine, comprising a spindle transmission mechanism, a spindle body installed in the middle of the spindle transmission mechanism, an outer protection box is installed on the surface of one side of the middle of the spindle transmission mechanism, an electric push rod, a detection rod, an oil storage component, a double magnetic position component, and a one-way oil delivery valve pipe are installed inside the outer protection box, and one side of the bottom of the outer protection box is an open port;

[0007] The double magnetic suction position component includes an arc-shaped sleeve plate, a first electromagnetic suction cup and a second electromagnetic suction cup. The output end of the electric push rod is transmission-connected with one end of the arc-shaped sleeve plate. The first electromagnetic suction cup and the second electromagnetic suction cup are respectively sleeved in the middle of the arc-shaped sleeve plate and the inside of the other end of the arc-shaped sleeve plate. The magnetic suction surface of the first electromagnetic suction cup can be magnetically connected with the surface of one end of the detection rod, and the magnetic suction surface of the second electromagnetic suction cup can be magnetically connected with the bottom end of the oil storage component.

[0008] One end of the one-way oil valve pipe is fixedly sleeved on the inner side of the top of the oil storage component, and the other end of the one-way oil valve pipe passes through the outside of the outer protection box and faces the surface of the main shaft body. After expansion, the detection end of the detection rod can pass through the open port and be movably connected with the outer surface of the main shaft body.

[0009] The detection rod member includes a guide sleeve, a T-shaped detection head, a pressure sensor, a first spring, a guide rod, and a limit sleeve. The pressure sensor is mounted inside the guide sleeve. One end of the T-shaped detection head is clamped on the inner side of one end of the guide sleeve and is fitted and connected with the pressure-sensitive surface of the pressure sensor. A first spring is installed between the end surface of one end of the T-shaped detection head and the inner wall of the other end of the guide sleeve.

[0010] Preferably, the two ends of the guide rod are respectively fixedly connected to the end face of the other end of the guide sleeve and clamped inside one end of the limiting sleeve, a support frame is installed between the surface of the other end of the limiting sleeve and the surface of the top of the outer protective box, and a second spring is installed between the surface of the other end of the guide sleeve and the surface of the other end of the limiting sleeve.

[0011] The oil storage component is mainly composed of a folding cylinder and iron blocks and transition blocks fixedly connected at both ends of the folding cylinder. An auxiliary frame is fixedly connected between the surface of the transition block and the inner wall of the top of the outer protective box. The top of the folding cylinder is fixedly socketed with one end of the one-way oil valve pipe.

[0012] The foldable cartridge has the structural characteristics of reciprocating folding and expansion. A fluid infusion tube is installed on the top of the foldable cartridge. One end of the fluid infusion tube passes through a side wall of an outer protective box and extends to the outside of the outer protective box. A sealing cover is connected to the external thread of the end of the fluid infusion tube.

[0013] Preferably, a connecting plate is fixedly connected to the surface of the outer protective box, and the connecting plate is installed and fixed to the surface of the middle part of the main shaft transmission mechanism by screws.

[0014] Preferably, a limiting frame is installed between the shell surface of the electric push rod and the inner wall of the top of the outer protective box, the output direction of the electric push rod and the expansion direction of the detection rod are both toward the open port, and the double magnetic positioning component can be movably connected with the open port.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] 1. The utility model provides an electric push rod and a magnetic transmission detection rod with double magnetic positions to expand and contact the spindle body, and then performs pressure detection on multiple positions of the spindle body when the spindle body rotates at a low speed, records the pressure data values ​​of multiple positions of the spindle body, and then takes the average difference of multiple pressure data values. After comparing it with the standard value, it can reflect the concentricity accuracy of the spindle body in a variable manner, facilitates timely calibration, and ensures the processing quality.

[0017] 2. The utility model uses an electric push rod and a double magnetic position component to magnetically drive the oil storage component, and then uses the pressure difference caused by the reciprocating expansion and deformation of the oil storage component to automatically spray the lubricating oil inside the oil storage component to the surface of the main shaft body through the one-way oil delivery valve pipe. Subsequently, the main shaft body is controlled to rotate at a low speed through the main shaft transmission mechanism to achieve comprehensive lubrication. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a partial cross-sectional schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a front view schematic diagram of the structure of the utility model;

[0020] Figure 3 It is a cross-sectional schematic diagram of the structural detection rod of the utility model;

[0021] Figure 4 It is an enlarged schematic diagram of the double magnetic attraction component of the utility model structure;

[0022] Figure 5 The utility model structure Figure 1 The enlarged schematic diagram of point A in the middle;

[0023] Figure 6 The utility model structure Figure 2 A magnified schematic diagram of point B in the middle.

[0024] In the figure: 1. spindle transmission mechanism; 2. spindle body; 3. outer protection box; 4. electric push rod; 5. detection rod; 51. guide sleeve; 52. T-type detection head; 53. pressure sensor; 54. first spring; 55. guide rod; 56. limit sleeve; 57. second spring; 6. oil storage component; 7. double magnetic suction component; 71. arc sleeve; 72. first electromagnetic suction cup; 73. second electromagnetic suction cup; 8. one-way oil delivery valve pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-6 A spindle transmission device for a horizontal milling and boring machine comprises a spindle transmission mechanism 1, a spindle body 2 installed in the middle of the spindle transmission mechanism 1, an outer protection box 3 is installed on the surface of one side of the middle of the spindle transmission mechanism 1, an electric push rod 4, a detection rod 5, an oil storage component 6, a double magnetic position component 7, and a one-way oil delivery valve pipe 8 are installed inside the outer protection box 3, and one side of the bottom of the outer protection box 3 is an open port;

[0027] A limit frame is installed between the shell surface of the electric push rod 4 and the top inner wall of the outer protection box 3. The output direction of the electric push rod 4 and the expansion direction of the detection rod 5 are both toward the open port, and the double magnetic attraction component 7 can be movably connected with the open port;

[0028] The double magnetic suction position component 7 includes an arc-shaped sleeve plate 71, a first electromagnetic suction cup 72 and a second electromagnetic suction cup 73. The output end of the electric push rod 4 is transmission-connected with one end of the arc-shaped sleeve plate 71. The first electromagnetic suction cup 72 and the second electromagnetic suction cup 73 are respectively sleeved in the middle part of the arc-shaped sleeve plate 71 and the inside of the other end of the arc-shaped sleeve plate 71. The magnetic suction surface of the first electromagnetic suction cup 72 can be magnetically connected with the surface of one end of the detection rod 5, and the magnetic suction surface of the second electromagnetic suction cup 73 can be magnetically connected with the bottom end of the oil storage component 6.

[0029] One end of the one-way oil delivery valve pipe 8 is fixedly sleeved on the inner side of the top of the oil storage component 6, and the other end of the one-way oil delivery valve pipe 8 passes through the outer side of the outer protection box 3 and faces the surface of the main shaft body 2. The detection end of the detection rod 5 can pass through the open port after expansion and be movably connected with the outer surface of the main shaft body 2;

[0030] The oil storage component 6 is mainly composed of a folding cartridge and an iron block and a transition block fixedly connected at both ends of the folding cartridge. An auxiliary frame is fixedly connected between the surface of the transition block and the inner wall of the top of the outer protection box 3. The top of the folding cartridge is fixedly sleeved with one end of the one-way oil delivery valve pipe 8.

[0031] In order to ensure the sustainable use of the oil storage component 6, the folding cartridge has the structural characteristics of reciprocating folding and expansion. A liquid replenishing tube is installed on the top of the folding cartridge. One end of the liquid replenishing tube passes through the side wall of the outer protective box 3 and extends to the outside of the outer protective box 3. The end of the liquid replenishing tube is externally threaded and connected with a sealing cap.

[0032] The detection rod 5 includes a guide sleeve 51, a T-shaped detection head 52, a pressure sensor 53, a first spring 54, a guide rod 55, and a limit sleeve 56. The pressure sensor 53 is sleeved inside the guide sleeve 51. One end of the T-shaped detection head 52 is clamped on the inner side of one end of the guide sleeve 51 and is in contact with the pressure sensing surface of the pressure sensor 53. The first spring 54 is installed between the end surface of one end of the T-shaped detection head 52 and the inner wall of the other end of the guide sleeve 51, thereby performing contact pressure detection.

[0033] The two ends of the guide rod 55 are respectively fixedly connected to the end surface of the other end of the guide sleeve 51 and are internally clamped with one end of the limiting sleeve 56. A support frame is installed between the surface of the other end of the limiting sleeve 56 and the surface of the top of the outer protection box 3. A second spring 57 is installed between the surface of the other end of the guide sleeve 51 and the surface of the other end of the limiting sleeve 56, thereby ensuring the stability and reliability of the movement of various structures inside the detection rod 5.

[0034] A connecting plate is fixedly connected to the surface of the outer protection box 3 , and the connecting plate is fixed to the surface of the middle part of the main shaft transmission mechanism 1 by screws, which is convenient for disassembly and installation.

[0035] Working principle:

[0036] Embodiment 1

[0037] When the concentricity of the spindle body 2 needs to be detected, the first electromagnetic chuck 72 is started and the second electromagnetic chuck 73 is kept closed, the first electromagnetic chuck 72 is magnetically connected to the surface of the guide sleeve 51 inside the detection rod 5, and then the electric push rod 4 is started, and the output end of the electric push rod 4 drives the front end structure of the detection rod 5, that is, the T-shaped detection head 52, to move out of the outer protection box 3 through the double magnetic position component 7 until it contacts the surface of the spindle body 2;

[0038] The spindle body 2 is controlled to rotate at a low speed through the spindle transmission mechanism 1. At the same time, the rotating spindle body 2 will apply pressure to the T-type detection head 52. The T-type detection head 52 will synchronously pressurize the pressure sensor 53 under the support of the guide sleeve 51, and record the pressure data values ​​of multiple positions of the spindle body 2. Then, the average difference of multiple pressure data values ​​is taken and compared with the standard value, which can reflect the concentricity accuracy of the spindle body 2 in a variable manner.

[0039] Embodiment 2

[0040] When the surface of the spindle body 2 needs to be lubricated and protected, the first electromagnetic suction cup 72 is closed and the second electromagnetic suction cup 73 is opened. The second electromagnetic suction cup 73 is magnetically connected to the iron block inside the oil storage component 6, and then the electric push rod 4 is started. The output end of the electric push rod 4 drives the front end structure of the oil storage component 6 to expand through the double magnetic suction position component 7, and then the electric push rod 4 is closed again, and the oil storage component 6 is reset. Then, the pressure difference caused by the reciprocating expansion and deformation is used to make the lubricating oil inside the oil storage component 6 automatically spray to the surface of the spindle body 2 through the one-way oil delivery valve pipe 8, and the spindle body 2 is controlled to rotate at a low speed through the spindle transmission mechanism 1 to achieve comprehensive lubrication.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. At the same time, in the drawings of the present utility model, the fill pattern is only for distinguishing the layers, without any other limitation.

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

Claims

1. A spindle transmission device for a horizontal milling and boring machine, comprising a spindle transmission mechanism (1) and a spindle body (2) installed in the middle of the spindle transmission mechanism (1), characterized in that: An outer protective box (3) is installed on the surface of one side of the middle part of the main shaft transmission mechanism (1), and an electric push rod (4), a detection rod (5), an oil storage component (6), a double magnetic attraction component (7), and a one-way oil delivery valve pipe (8) are mounted inside the outer protective box (3), and one side of the bottom of the outer protective box (3) is an open port; The double magnetic suction position component (7) comprises an arc-shaped sleeve plate (71), a first electromagnetic suction cup (72) and a second electromagnetic suction cup (73); the output end of the electric push rod (4) is transmission-connected to one end of the arc-shaped sleeve plate (71); the first electromagnetic suction cup (72) and the second electromagnetic suction cup (73) are respectively sleeved in the middle of the arc-shaped sleeve plate (71) and the inside of the other end of the arc-shaped sleeve plate (71); the magnetic suction surface of the first electromagnetic suction cup (72) can be magnetically connected to the surface of one end of the detection rod (5); and the magnetic suction surface of the second electromagnetic suction cup (73) can be magnetically connected to the bottom end of the oil storage component (6); One end of the one-way oil delivery valve pipe (8) is fixedly sleeved on the inner side of the top of the oil storage component (6), and the other end of the one-way oil delivery valve pipe (8) passes through the outside of the outer protection box (3) and faces the surface of the main shaft body (2). After expansion, the detection end of the detection rod (5) can pass through the open port and be movably connected to the outer surface of the main shaft body (2).

2. The spindle transmission device of a horizontal milling and boring machine according to claim 1, characterized in that: The detection rod (5) comprises a guide sleeve (51), a T-shaped detection head (52), a pressure sensor (53), a first spring (54), a guide rod (55), and a limit sleeve (56); the pressure sensor (53) is sleeved inside the guide sleeve (51); one end of the T-shaped detection head (52) is clamped on the inner side of one end of the guide sleeve (51) and is in close contact with the pressure-sensitive surface of the pressure sensor (53); and the first spring (54) is installed between the end surface of one end of the T-shaped detection head (52) and the inner wall of the other end of the guide sleeve (51).

3. The spindle transmission device of a horizontal milling and boring machine according to claim 2, characterized in that: The two ends of the guide rod (55) are respectively fixedly connected to the end surface of the other end of the guide sleeve (51) and are internally clamped with one end of the limiting sleeve (56); a support frame is installed between the surface of the other end of the limiting sleeve (56) and the surface of the top of the outer protective box (3); and a second spring (57) is installed between the surface of the other end of the guide sleeve (51) and the surface of the other end of the limiting sleeve (56).

4. The spindle transmission device of a horizontal milling and boring machine according to claim 1, characterized in that: The oil storage component (6) is mainly composed of a folding cylinder and an iron block and a transition block fixedly connected at both ends of the folding cylinder. An auxiliary frame is fixedly connected between the surface of the transition block and the top inner wall of the outer protective box (3). The top of the folding cylinder is fixedly sleeved with one end of the one-way oil delivery valve pipe (8).

5. The spindle transmission device of a horizontal milling and boring machine according to claim 4, characterized in that: The foldable cartridge has the structural characteristics of reciprocating folding and expansion. A fluid infusion tube is mounted on the top of the foldable cartridge. One end of the fluid infusion tube passes through a side wall of the outer protective box (3) and extends to the outside of the outer protective box (3). The end of the fluid infusion tube is externally threadedly connected to a sealing cover.

6. The spindle transmission device of a horizontal milling and boring machine according to claim 1, characterized in that: A connecting plate is fixedly connected to the surface of the outer protection box (3), and the connecting plate is fixed to the surface of the middle part of the main shaft transmission mechanism (1) by means of screws.

7. The spindle transmission device of a horizontal milling and boring machine according to claim 1, characterized in that: A limiting frame is installed between the shell surface of the electric push rod (4) and the top inner wall of the outer protective box (3); the output direction of the electric push rod (4) and the expansion direction of the detection rod (5) are both toward the open port, and the double magnetic attraction component (7) can be movably connected to the open port.

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