An anti-loosening and quick plugging and unplugging device for an electric spindle connector

Abstract

The present invention discloses a device for preventing loosening and enabling quick plugging and unplugging of an electric spindle connector, which relates to the field of connecting plug devices. A device for preventing loosening and enabling quick plugging and unplugging of an electric spindle connector includes an electric spindle body, a wire tube fixedly connected to the electric spindle body, a female connector fixedly connected to the wire tube, a male connector connected to the female connector, and a connecting ring connected to the male connector. The device further includes: a mounting ring fixedly connected to the female connector, and a clamping groove provided on the mounting ring. By quickly inserting the connecting ring into the clamping groove of the mounting ring, the male connector and the female connector can be docked through a positioning rod, so that they are stably connected together. At the same time, through the setting of a sealing component, the gap between the two can be filled, reducing the situation of external water vapor entering the connector. At the same time, through the setting of an auxiliary limiting component, the stability of the connection between the male connector and the female connector can be increased, facilitating the use of the electric spindle.

Description

Technical Field

[0001] The present invention belongs to the technical field of connecting plug devices, and specifically relates to an anti-loosening and quick plugging and unplugging device for an electric spindle connector. Background Art

[0002] In modern advanced manufacturing technologies, electric spindles, with their advantages of high precision, high rotational speed, and high efficiency, are widely used in precision machining equipment such as numerically controlled machine tools and machining centers. As a key hub for power transmission and signal interaction, the performance of the electric spindle connector directly affects the operating quality of the electric spindle and even the entire machining system.

[0003] Currently, when an electric spindle connector is in use, the loosening problem has become a key factor restricting its reliability. Under actual working conditions, the electric spindle rotates at a high speed, generating continuous vibrations. Coupled with the inevitable external force impacts during the machining process, these dynamic loads can easily cause the connection parts of the connector to become loose. Once loose, the stability of the connection will be damaged, and the stability of power transmission and the accuracy of signal transmission will be severely affected, significantly shortening the service life of the electric spindle. At the same time, the machining accuracy will also be reduced, affecting the product quality.

[0004] Secondly, insufficient sealing performance is another prominent problem. In working environments such as mechanical machining workshops and foundry workshops, there is generally a humid and dusty situation. External water vapor and dust and other impurities will penetrate into the interior along the gaps of the connector. The water vapor will cause the internal electrical components to get damp, reducing the insulation performance and increasing the risk of short circuits; particulate impurities such as dust may cause poor contact and interfere with signal transmission. These will seriously threaten the safe and stable operation of the electric spindle, and frequent fault repairs will also increase the equipment maintenance cost and downtime, reducing production efficiency. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a connecting plug device that can overcome or at least partially solve the above problems.

[0006] To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: an anti-loosening and quick plugging and unplugging device for an electric spindle connector, including an electric spindle body, a wire tube fixedly connected to the electric spindle body, a female connector fixedly connected to the wire tube, a male connector connected to the female connector, a connecting ring connected to the male connector, and further including: an installation ring fixedly connected to the female connector, a card slot provided on the installation ring, and the connecting ring can be inserted into the card slot; a positioning rod slidably connected to the installation ring, both ends of the positioning rod passing through the installation ring, and a positioning port matching the positioning rod provided on the connecting ring; a first spring member sleeved on the positioning rod, and both ends of the first spring member are respectively connected to the positioning rod and the installation ring; a sealing assembly provided on the female connector for sealing the gap between the female connector and the male connector; an auxiliary limiting assembly for assisting in fixing the female connector and the male connector.

[0007] Further, the sealing assembly includes an extrusion airbag, an extrusion plate, and a sealing airbag. The extrusion airbag is fixedly connected to the female connector, the extrusion plate is slidably connected to the female connector and is used for extruding the extrusion airbag. The sealing airbag is installed in the installation ring, and the expansion end of the sealing airbag faces the connecting ring. By extruding the extrusion airbag with the extrusion plate, the gas in the extrusion airbag can enter the sealing airbag, and then the gap between the installation ring and the connecting ring is sealed by the sealing airbag.

[0008] Even further, a connecting rod is slidably connected in the installation ring, one end of the connecting rod is fixedly connected to the extrusion plate, and the other end of the connecting rod is located in the groove of the installation ring.

[0009] Still further, a sealing groove matching the position of the sealing airbag is provided on the connecting ring.

[0010] Further, a plurality of limiting grooves are provided on the female connector, a rotating ring is rotatably connected in the connecting ring, and a limiting block matching the size of the limiting groove is provided on the rotating ring.

[0011] Even further, the auxiliary limiting assembly includes a pull rope, a plug rod, a second spring member, a positioning block, and a positioning groove. The pull rope is slidably connected in the female connector, and one end of the pull rope is connected to the positioning rod. The plug rod is fixedly connected to the female connector. The positioning groove is provided on the limiting block. The positioning block is slidably connected in the plug rod. The second spring member is connected in the plug rod, and the other end of the second spring member is connected to the positioning block. And the end of the pull rope far from the positioning rod is connected to the positioning block.

[0012] Still further, a mounting plate is fixedly connected to the female connector, and the extrusion airbag is fixedly connected to the mounting plate.

[0013] Furthermore, a connecting pipe is connected to the extrusion airbag, and the other end of the connecting pipe communicates with the sealing airbag.

[0014] Still further, the drawstring is a metal cord.

[0015] Even further, a pull block is fixedly connected to one end of the positioning rod away from the positioning groove, and a guiding inclined surface is provided on one end of the positioning rod away from the positioning groove.

[0016] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: By quickly inserting the connecting ring into the card slot of the mounting ring, the present invention can dock the male connector and the female connector through the positioning rod, making them stably connected together. At the same time, through the setting of the sealing component, the gap between the two connections can be filled, reducing the situation of external water vapor entering the inside of the connector. At the same time, through the setting of the auxiliary limiting component, the connection stability between the male connector and the female connector can be increased, facilitating the use of the electric spindle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the drawings:

[0018] Figure 1 is a schematic structural diagram of an anti-loosening and quick plugging and unplugging device for an electric spindle connector proposed by the present invention;

[0019] Figure 2 is a schematic structural diagram of a wire tube, a male connector, and a female connector in an anti-loosening and quick plugging and unplugging device for an electric spindle connector proposed by the present invention Figure 1 ;

[0020] Figure 3 is a schematic structural diagram of a wire tube, a male connector, and a female connector in an anti-loosening and quick plugging and unplugging device for an electric spindle connector proposed by the present invention Figure 2 ;

[0021] Figure 4 is a schematic structural diagram of a male connector in an anti-loosening and quick plugging and unplugging device for an electric spindle connector proposed by the present invention;

[0022] Figure 5 is a schematic cross-sectional structural diagram of the connection between a male connector and a female connector in an anti-loosening and quick plugging and unplugging device for an electric spindle connector proposed by the present invention;

[0023] Figure 6 is an anti-loosening and quick plugging and unplugging device for an electric spindle connector proposed by the present invention Figure 5 Schematic structural diagram of part A in;

[0024] Figure 7 is an anti-loosening and quick plugging and unplugging device for an electric spindle connector proposed by the present invention Figure 6 Schematic structural diagram of part B in.

[0025] In the figure: 1. Electric spindle body; 101. Wire tube; 2. Female connector; 201. Mounting plate; 202. Extrusion airbag; 203. Extrusion plate; 204. Connecting rod; 205. Mounting ring; 206. Sealing airbag; 207. Positioning rod; 208. First spring member; 301. Male connector; 302. Connecting ring; 3021. Positioning port; 3022. Sealing groove; 303. Rotating ring; 3031. Positioning groove; 401. Pull rope; 402. Insert rod; 403. Second spring member; 404. Positioning block. Detailed implementation manner

[0026] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0027] Embodiment 1: Refer to Figures 1-7, An anti-loosening and quick plugging and unplugging device for an electric spindle connector, comprising an electric spindle body 1, a wire pipe 101 fixedly connected to the electric spindle body 1, a female connector 2 fixedly connected to the wire pipe 101, a male connector 301 connected to the female connector 2, and a connecting ring 302 rotatably connected to the male connector 301. It further includes: an installation ring 205 fixedly connected to the female connector 2, a clamping groove is provided on the installation ring 205, and the connecting ring 302 can be inserted into the clamping groove; a positioning rod 207 slidably connected to the installation ring 205, both ends of the positioning rod 207 penetrate through the installation ring 205, and a positioning port 3021 matching the positioning rod 207 is provided on the connecting ring 302; a first spring member 208 sleeved on the positioning rod 207, and both ends of the first spring member 208 are respectively connected to the positioning rod 207 and the installation ring 205; a sealing assembly provided on the female connector 2 for sealing the gap between the female connector 2 and the male connector 301;Auxiliary limiting component, used to assist in fixedly connecting the female connector 2 and the male connector 301. The sealing component includes an extrusion airbag 202, an extrusion plate 203, and a sealing airbag 206. The extrusion airbag 202 is fixedly connected to the female connector 2. The extrusion plate 203 is slidably connected to the female connector 2, and the extrusion plate 203 is used to extrude the extrusion airbag 202. The sealing airbag 206 is installed in the mounting ring 205, and the expansion end of the sealing airbag 206 faces the connecting ring 302. By extruding the extrusion airbag 202 with the extrusion plate 203, the gas in the extrusion airbag 202 can enter the sealing airbag 206, and then the gap between the mounting ring 205 and the connecting ring 302 can be sealed by the sealing airbag 206. A connecting rod 204 is slidably connected in the mounting ring 205. One end of the connecting rod 204 is fixedly connected to the extrusion plate 203, and the other end of the connecting rod 204 is located in the groove of the mounting ring 205. A sealing groove 3022 matching the position of the sealing airbag 206 is provided on the connecting ring 302. Multiple limiting grooves are provided on the female connector 2. A rotating ring 303 is rotatably connected in the connecting ring 302. Limiting blocks matching the size of the limiting grooves are provided on the rotating ring 303. The auxiliary limiting component includes a pull rope 401, a plug rod 402, a second spring member 403, a positioning block 404, and a positioning groove 3031. The pull rope 401 is slidably connected in the female connector 2, and one end of the pull rope 401 is connected to the positioning rod 207. The plug rod 402 is fixedly connected to the female connector 2. The positioning groove 3031 is provided on the limiting block. The positioning block 404 is slidably connected in the plug rod 402. The second spring member 403 is connected in the plug rod 402, and the other end of the second spring member 403 is connected to the positioning block 404. And the end of the pull rope 401 far from the positioning rod 207 is connected to the positioning block 404. A mounting plate 201 is fixedly connected to the female connector 2. The extrusion airbag 202 is fixedly connected to the mounting plate 201. A connecting pipe is connected to the extrusion airbag 202, and the other end of the connecting pipe is communicated with the sealing airbag 206. The pull rope 401 is a metal rope. A pull block is fixedly connected to the end of the positioning rod 207 far from the positioning groove 3031. A guiding inclined surface is provided at the end of the positioning rod 207 far from the positioning groove 3031.;

[0028] When the device is in use, first bring the male connector 301 close to the female connector 2 so that the connecting ring 302 is aligned with the card slot of the mounting ring 205. Then quickly push the male connector 301. During the process of inserting the connecting ring 302 into the card slot, under the action of the first spring member 208, the positioning rod 207 quickly snaps into the positioning opening 3021 on the connecting ring 302, realizing the quick and stable docking of the male connector 301 and the female connector 2. When disassembling, pull up the pull block at the end of the positioning rod 207 to overcome the elastic force of the first spring member 208 and pull out the positioning rod 207 from the positioning opening 3021, then the male connector 301 and the female connector 2 can be separated; the guiding inclined surface at the end of the positioning rod 207 plays a guiding role when the connecting ring 302 is inserted into the card slot, enabling the positioning rod 207 to more smoothly align with the positioning opening 3021.

[0029] As Figure 5 , Figure 6 shown, when the male connector 301 is docked with the female connector 2, during the process of inserting the connecting ring 302 into the card slot, the connecting rod 204 will be squeezed. The connecting rod 204 drives the squeezing plate 203 to move, and the squeezing plate 203 squeezes the squeezing airbag 202. The gas in the squeezing airbag 202 enters the sealing airbag 206 through the connecting pipe. The sealing airbag 206 expands and is embedded in the sealing groove 3022 of the connecting ring 302. After the sealing airbag 206 expands, it precisely cooperates with the sealing groove 3022 on the connecting ring 302, further enhancing the sealing effect, preventing water vapor, dust, etc. from entering the inside of the connector through the gap at the sealing part, effectively sealing the gap between the mounting ring 205 and the connecting ring 302, and preventing foreign impurities from invading the outside.

[0030] With the device being used multiple times, the gas in the squeezing airbag 202 and the sealing airbag 206 may leak slightly for various reasons, affecting the sealing effect. At this time, a special gas replenishment port, that is, an inflation nozzle, is provided on the squeezing airbag 202. During the shutdown maintenance of the electric spindle, the operator can use a supporting small inflation device, align the inflation interface with the reserved inflation nozzle of the squeezing airbag 202, start the inflation device, and the outside air is slowly filled into the squeezing airbag 202 after being purified and filtered. As the gas is injected, the squeezing airbag 202 gradually fills up and the pressure increases. When the specified pressure value is reached, the inflation stops. During the next docking process of the connector, the squeezing airbag 202 can smoothly transport the gas to the sealing airbag 206 with sufficient gas volume to maintain good sealing performance.

[0031] As Figure 5 , Figure 6 shown, when the male connector 301 is docked with the female connector 2, during the process of inserting the connecting ring 302 into the card slot, the limiting block on the rotating ring 303 will gradually approach the limiting groove on the female connector 2. When the positioning rod 207 is inserted into the positioning port 3021 to complete the preliminary docking, the rotating ring 303 rotates slightly, and the limiting block can be embedded in the limiting groove, further restricting the relative rotation between the male connector 301 and the female connector 2 and enhancing the connection stability.

[0032] Finally, as Figure 6 , Figure 7As shown, when the positioning rod 207 is inserted into the positioning port 3021, the pull rope 401 will be pulled, and the pull rope 401 drives the positioning block 404 to slide in the insertion rod 402 to overcome the elastic force of the spring member 2 403. When the positioning rod 207 is completely inserted into the positioning port 3021, the positioning block 404 is bounced into the positioning groove 3031 of the upper limit block of the rotating ring 303 under the action of the spring member 2 403, further locking the male connector 301 and the female connector 2 to prevent the two from loosening due to external forces such as vibration. At the same time, the pull rope 401 is made of metal rope, and the metal rope has the characteristics of high strength and is not easy to deform and break, so as to ensure that during the pulling process of the positioning block 404, the pull rope 401 can stably transmit the pulling force, so that the auxiliary limit assembly can operate reliably.

[0033] Example 2: Reference Figures 1-7 , an anti-loosening and quick plug-in device for an electric spindle connector, which is basically the same as the embodiment, and further: an external thread is arranged on the female connector 2, a connecting ring 302 is rotatably connected to the male connector 301, and the connecting ring 302 is threadedly connected to the external thread.

[0034] In the straight-insertion mode in the embodiment, the device can also be connected by a threaded mode. At this time, an external thread is set on the connector female 2, and the connecting ring 302 is installed on the connector female 2 by rotating the thread on the connecting ring 302. As the connecting ring 302 is inserted into the slot, the positioning rod 207 is quickly inserted into the positioning port 3021 on the connecting ring 302 under the action of the spring member 208, so as to realize the rapid and stable docking of the connector male 301 and the connector female 2. When disassembling, the pull block at the end of the positioning rod 207 is pulled upward to overcome the elastic force of the spring member 208, and the positioning rod 207 is pulled out from the positioning port 3021, so as to separate the connector male 301 and the connector female 2. Then, the threaded mode will be more stable at this time, further ensuring the stability of the connection. However, this mode abandons the straight-insertion mode and adopts a threaded auxiliary connection mode.

[0035] At the same time, when the male connector 301 is docked with the female connector 2, the connecting ring 302 will squeeze the connecting rod 204 during the insertion process of the slot, and the connecting rod 204 will drive the extrusion plate 203 to move, and the extrusion plate 203 will squeeze the extrusion airbag 202. The gas in the extrusion airbag 202 enters the sealing airbag 206 through the connecting pipe, and the sealing airbag 206 expands and embeds into the sealing groove 3022 of the connecting ring 302. After the sealing airbag 206 expands, it precisely cooperates with the sealing groove 3022 on the connecting ring 302, further enhancing the sealing effect, preventing water vapor, dust, etc. from entering the interior of the connector from the gap in the seal, and effectively sealing the gap between the mounting ring 205 and the connecting ring 302 to prevent the invasion of external impurities.

[0036] With the repeated use of the device, a small amount of gas in the extrusion airbag 202 and the sealing airbag 206 may leak for various reasons, affecting the sealing effect. At this time, a dedicated gas replenishment port, namely an inflation nozzle, is provided on the extrusion airbag 202. During the shutdown maintenance of the motorized spindle, the operator can use a supporting small inflating device, align the inflation interface with the reserved inflation nozzle of the extrusion airbag 202, start the inflating device, and the outside air is slowly filled into the extrusion airbag 202 after purification and filtration. As the gas is injected, the extrusion airbag 202 gradually fills up and the pressure increases. When the specified pressure value is reached, the inflation stops. During the next docking process of the connector, the extrusion airbag 202 can smoothly transport the gas to the sealing airbag 206 with sufficient gas volume to maintain good sealing performance.

[0037] When the male connector 301 is docked with the female connector 2, during the process of the connecting ring 302 being inserted into the card slot, the limiting block on the rotating ring 303 will gradually approach the limiting slot on the female connector 2. When the positioning rod 207 is inserted into the positioning port 3021 to complete the preliminary docking, the rotating ring 303 rotates slightly, and the limiting block can be embedded into the limiting slot to further restrict the relative rotation between the male connector 301 and the female connector 2 and enhance the connection stability.

[0038] Finally, as Figure 6 、 Figure 7 shown, when the positioning rod 207 is inserted into the positioning port 3021, it will pull the pull rope 401. The pull rope 401 drives the positioning block 404 to slide in the insertion rod 402 against the elastic force of the spring member two 403. When the positioning rod 207 is completely inserted into the positioning port 3021, the positioning block 404 pops into the positioning slot 3031 of the limiting block on the rotating ring 303 under the action of the spring member two 403 to further lock the male connector 301 and the female connector 2 and prevent them from loosening due to external forces such as vibration. At the same time, the pull rope 401 is made of a metal rope. By utilizing the characteristics of high strength, not easy to deform and break of the metal rope, it is ensured that during the process of pulling the positioning block 404, the pull rope 401 can stably transmit the pulling force and enable the auxiliary limiting component to operate reliably.

[0039] In the present invention, by quickly inserting the connecting ring 302 into the card slot of the mounting ring 205, the male connector 301 and the female connector 2 can be docked through the positioning rod 207 to stably connect them together. At the same time, through the setting of the sealing component, the gap between their connections can be filled, reducing the situation of outside water vapor entering the inside of the connector. At the same time, through the setting of the auxiliary limiting component, the connection stability between the male connector 301 and the female connector 2 can be increased, facilitating the use of the motorized spindle.

[0040] The above are only the preferred embodiments of the present invention and do not impose any form of limitation on the present invention. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art of the present invention can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content prompted above within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still fall within the scope of the present invention's solution.

Claims

1. An anti-loosening and quick plug-in device for an electric spindle connector, comprising an electric spindle body (1), a wire tube (101) fixedly connected to the electric spindle body (1), a female connector (2) fixedly connected to the wire tube (101), a male connector (301) connected to the female connector (2), and a connecting ring (302) connected to the male connector (301), characterized in that: Also includes: A mounting ring (205) is fixedly connected to the connector nut (2), the mounting ring (205) being provided with a slot into which the connecting ring (302) can be inserted; a positioning rod (207) is slidably connected to the mounting ring (205), both ends of the positioning rod (207) pass through the mounting ring (205), and the connecting ring (302) is provided with a positioning opening (3021) matching the positioning rod (207); a spring member (208) is sleeved on the positioning rod (207), and both ends of the spring member (208) are respectively connected to the positioning rod (207) and the mounting ring (205); a sealing assembly is provided. The invention relates to a sealing assembly for sealing a gap between the female connector (2) and the male connector (301); an auxiliary limiting assembly for assisting in fixing the female connector (2) and the male connector (301); the sealing assembly comprises an extrusion airbag (202), an extrusion plate (203), and a sealing airbag (206); the extrusion airbag (202) is fixedly connected to the female connector (2); the extrusion plate (203) is slidably connected to the female connector (2); the extrusion plate (203) is used to extrude the extrusion airbag (202); the sealing airbag (206) is installed in the mounting ring (205); and the sealing airbag (206) is provided with a sealing ring (205). The expansion end faces the connecting ring (302), and the extrusion airbag (202) is squeezed by the extrusion plate (203), so that the gas in the extrusion airbag (202) can enter the sealing airbag (206), and then the gap between the sealing mounting ring (205) and the connecting ring (302) is sealed by the sealing airbag (206); a plurality of groups of limiting grooves are arranged on the connector mother (2), a rotating ring (303) is rotatably connected in the connecting ring (302), and a limiting block matching the size of the limiting groove is arranged on the rotating ring (303); the auxiliary limiting assembly includes a pull rope (401), an insertion rod (402), a second spring member (403), and a positioning block (404), a positioning groove (3031), the pull rope (401) is slidably connected in the connector mother (2), and one end of the pull rope (401) is connected to the positioning rod (207), the insertion rod (402) is fixedly connected to the connector mother (2), the positioning groove (3031) is set on the limit block, the positioning block (404) is slidably connected in the insertion rod (402), the spring component 2 (403) is connected in the insertion rod (402), and the other end of the spring component 2 (403) is connected to the positioning block (404), and one end of the pull rope (401) away from the positioning rod (207) is connected to the positioning block (404).

2. The anti-loosening and quick plug-in device for an electric spindle connector according to claim 1, characterized in that: A connecting rod (204) is slidably connected inside the mounting ring (205), one end of the connecting rod (204) is fixedly connected to the extrusion plate (203), and the other end of the connecting rod (204) is located in a groove of the mounting ring (205).

3. The anti-loosening and quick plug-in device for an electric spindle connector according to claim 2, characterized in that: The connection ring (302) is provided with a sealing groove (3022) that matches the position of the sealing airbag (206).

4. The anti-loosening and quick plug-in device for an electric spindle connector according to claim 1, characterized in that: The connector mother (2) is fixedly connected to a mounting plate (201), and the extrusion airbag (202) is fixedly connected to the mounting plate (201).

5. The anti-loosening and quick plug-in device for an electric spindle connector according to claim 4, characterized in that: The extrusion airbag (202) is connected to a connecting tube, and the other end of the connecting tube is in communication with the sealing airbag (206).

6. The anti-loosening and quick plug-in device for an electric spindle connector according to claim 1, characterized in that: The pull rope (401) is a metal rope.

7. The anti-loosening and quick plug-in device for an electric spindle connector according to claim 1, characterized in that: A pull block is fixedly connected to one end of the positioning rod (207) away from the positioning groove (3031), and a guiding inclined surface is provided on one end of the positioning rod (207) away from the positioning groove (3031).

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