CN214264896U - Machining center main shaft center goes out water seal structure - Google Patents
Machining center main shaft center goes out water seal structure Download PDFInfo
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- CN214264896U CN214264896U CN202120159644.0U CN202120159644U CN214264896U CN 214264896 U CN214264896 U CN 214264896U CN 202120159644 U CN202120159644 U CN 202120159644U CN 214264896 U CN214264896 U CN 214264896U
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- pull rod
- rod
- main shaft
- broach
- floating
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Abstract
A central water outlet sealing structure of a main shaft of a machining center comprises a main shaft core, a pull rod is arranged in the main shaft core and connected with a tool shank through a pull nail, broach claws are arranged on the upper side and the lower side of the pull nail, a compression spring is arranged in the pull rod, the compression spring the place ahead has connected gradually piston and floating rod, floating rod one end stretches out the pull rod outside and installs in the broach claw centre bore, broach claw centre bore department is equipped with the dish spring, the spacer is equipped with to the pull rod front end, adopt screw thread locking between pull rod front end and the broach claw, the pull rod front end locks with the contact of dish spring, the floating rod top is provided with the sealed gum cover that pastes the tight butt joint with the blind rivet, be equipped with the jump ring on the excircle of floating rod middle part, the jump ring is located the pull rod, the sealing washer is installed with the pull rod inner wall to spacer excircle, the sealing washer is installed to piston and pull rod inner hole wall, the sealing washer is installed to piston hole and floating rod excircle, the sealing washer is installed with the.
Description
Technical Field
The utility model relates to a lathe main shaft center goes out water seal structure, especially found/horizontal machining center main shaft center goes out water seal structure.
Background
In the working process of a machine tool, in order to improve the chip removal speed of a machined part and quickly cool a cutter, a spindle with a center water outlet is generally adopted, but the spindle with the center water outlet cannot be completely sealed, the end of a taper hole is always soaked by cutting fluid in the machining process or during shutdown, a broach claw, a broach nail and the like are easily corroded by the cutting fluid, scrap iron impurities can be contained in the cutting fluid, after the spindle is used for a long time, the taper hole of the spindle is easily corroded, the precision of the taper hole of the spindle is poor, the spindle is excessively large after the spindle is installed with the cutter, and further the machining precision of the machined part is improved. Referring to fig. 3, the prior art has the defect of the tightness of the water outlet structure at the center of the main shaft. Although the broach claw is provided with the mounting sealing ring, only cutting fluid can be prevented from entering the structure of the right side part of the pull rod; the combined surface of the knife handle and the pull nail has no sealing measure, when high-pressure water on the right side of the pull rod enters, cutting fluid firstly enters the movable cavity part of the pull claw, the conical surface of the knife handle possibly has the phenomenon of cutting fluid leakage, and meanwhile, the cutting fluid is repeatedly processed and used, impurities such as scrap iron powder and the like easily generate dirt, when the machine is stopped or is not used for a long time, the shaft core is easily corroded, the precision of the conical surface of the knife handle is poor, and the processing cutter is deflected.
Disclosure of Invention
The utility model aims at overcoming the above-mentioned problem that exists among the prior art, provide a machining center main shaft center play water seal structure that simple structure, with low costs, structure are reliable, sealed effectual.
In order to achieve the above object, the solution of the present invention is: the utility model provides a machining center main shaft center goes out water seal structure, includes main shaft axle core, is provided with the pull rod in the main shaft axle core, and the pull rod is connected with the handle of a knife through the blind rivet, and there is the broach claw both sides about the blind rivet, and the sealing washer, its characterized in that are installed to broach claw excircle and main shaft axle core interior pore wall: the novel broach is characterized in that a compression spring is arranged in the pull rod, a piston and a floating rod are sequentially connected in front of the compression spring, one end of the floating rod extends out of the pull rod and is arranged in a center hole of a broach claw, a disc spring is arranged at the center hole of the broach claw, a spacer sleeve is arranged at the front end of the pull rod, the front end of the pull rod and the broach claw are locked by threads, the front end of the pull rod is locked by contacting with the disc spring, a sealing rubber sleeve which is tightly butted with a blind rivet is arranged at the top of the floating rod, a clamp spring is arranged on the excircle of the middle part of the floating rod and is positioned in the pull rod, a sealing ring is arranged on the excircle of the spacer sleeve and the inner wall of the pull rod, a sealing ring is arranged on the inner hole wall of the piston and the inner hole of the pull rod, a sealing ring is arranged on the excircle of the piston and the floating rod, and a sealing ring is arranged on the excircle of the blind rivet and the inner hole of the hilt.
The utility model has the advantages that:
the design is additionally provided with parts such as a compression spring, a spacer bush, a piston, a floating rod, a sealing rubber sleeve, a snap spring, a disc spring, a sealing ring and the like; firstly, the front end of a pull rod is locked by threads, a spacer bush is added in consideration of sealing performance, a sealing ring is arranged between the outer ring of the spacer bush and the inner hole of a shaft core for sealing, and a sealing ring is arranged on the outer circle of the rear end of the pull rod threads to form sealing with the inner hole of the spacer bush; the compression spring is arranged in the pull rod, the main effect is that the piston is always supported by elasticity, meanwhile, the floating rod is arranged in front of the piston, the clamp spring is arranged in the middle of the floating rod to limit the ejection limit position of the spring, the sealing rubber sleeve at the front end of the floating rod is always kept to be tightly attached to the pull nail, when high-pressure water enters, the inner hole directly leads to the cutter, and the sealing structure effectively prevents cutting fluid from entering the interior of the pull tool claw and a spindle taper hole, so that the service life of the spindle is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a sectional view of the internal structure of the present invention;
figure 3 is a cross-sectional view of a prior art seal configuration.
Wherein: the tool comprises a spindle shaft core 201, a pull rod 202, a broach jaw 203, a sealing ring 204, a compression spring 205, a spacer sleeve 206, a piston 207, a floating rod 208, a disc spring 209, a pull nail 210, a tool shank 211, a tool 212, a sealing rubber sleeve 213, a cutter releasing structure 214 and a clamp spring 215.
Detailed Description
The invention will be described in further detail with reference to the following description and embodiments with reference to the accompanying drawings:
referring to fig. 1 to 3, a machining center main shaft center goes out water seal structure, including main shaft axle core 201, be provided with pull rod 202 in the main shaft axle core 201, pull rod 202 is connected with handle of a knife 211 through blind rivet 210, and both sides have broach claw 203 about the blind rivet 210, and sealing washer 204, its characterized in that are installed with main shaft axle core 201 inner hole wall to broach claw 203 excircle: a compression spring 205 is arranged in the pull rod 202, a piston 207 and a floating rod 208 are sequentially connected in front of the compression spring 205, one end of the floating rod 208 extends out of the pull rod 202 and is arranged in a center hole of the broach jaw 203, a disc spring 209 is arranged at the center hole of the broach jaw 203, a spacer 206 is arranged at the front end of the pull rod 202, the front end of the pull rod 202 and the broach jaw 203 are locked by threads, the front end of the pull rod 202 is locked by contacting with the disc spring 209, a sealing rubber sleeve 213 which is tightly butted with a pull nail 210 is arranged at the top of the floating rod 208, a snap spring 215 is arranged on an excircle of the middle part of the floating rod 208, the snap spring 215 is positioned in the pull rod 202, a sealing ring 204 is arranged on the excircle of the spacer 206 and the inner wall of the pull rod 202, a sealing ring 204 is arranged on the piston 207 and the inner hole of the pull rod 202, a sealing ring 204 is arranged on the excircle of the piston 207 and the outer hole of the floating rod 208, and a sealing ring 204 are arranged on the excircle of the pull nail 210 and the inner hole of the handle 211.
Explanation of the mounting operation: firstly, a floating rod 208 inlaid with a sealing rubber sleeve 213 is arranged in a central hole of a broach jaw 203, then a clamp spring 215 is arranged to limit the limit position of a compression spring 205 to be ejected, the floating rod 202 is arranged in the central hole with a sealing ring 204 of a spacer sleeve 206 before being arranged, meanwhile, a piston 207 is arranged in an inner hole of the pull rod 202 after the sealing ring 204 is arranged, at the moment, the arranged pull rod part can be screwed into the inner thread of the broach jaw 203 until the front end surface of the pull rod 202 is contacted and locked with a disc spring 209 to prevent the threads from loosening, and the installation is finished.
Description of the operation of knife installation: when the pull rod 202 is forced by the tool releasing mechanism 214 to move from the right to the left of the drawing (compression stress of a main shaft disc spring), the broach claw 203 is opened at the clearance position of the main shaft core 201, at the moment, the tool shank 211 can be arranged in the taper hole of the main shaft core 201, and the rivet 210 on the tool shank 211 can smoothly enter the broach claw 203; while the piston 207 is elastically supported by the compression spring 205; the piston 207 carries the floating rod 208 to slide towards the left, so that the sealing rubber sleeve 213 at the top of the floating rod 208 is attached to the tension nail 210 to form butt sealing. The cutter releasing mechanism 214 retracts, the disc spring 209 resets elastically, the pull rod 202 and the broach claws 203 are driven to retract, the broach claws 203 hook the pull nails 210 until the taper position of the cutter handle 211 and the conical surface of the spindle shaft core 201 are locked, and the cutter loading action is finished.
Description of actions when the knife is released: when the pull rod 202 is forced by the tool releasing mechanism to move from the right direction to the left direction of the drawing (compression stress of the disc spring of the main shaft), the broach claws 203 are opened at the clearance positions of the main shaft core 201, at the moment, the hilt 211 and the main shaft core 201 have a conical surface locking effect, the hilt 211 cannot be released temporarily, the pull rod 202 needs to move forwards continuously, the floating rod 208 and the piston 207 are continuously subjected to rightward retraction of the compression spring 205, the core surface of the broach claw 203 pushes against the pull nail 210, the hilt 211 is released, and tool releasing is completed.
In the design, parts such as a compression spring 205, a spacer sleeve 206, a piston 207, a floating rod 208, a sealing rubber sleeve 213, a snap spring 215, a disc spring 209, a sealing ring 204 and the like are added; firstly, the front end of a pull rod 202 is locked by threads, a spacer 206 is added in consideration of sealing performance, a sealing ring 204 is arranged on the outer ring of the spacer 206 and an inner hole of a spindle shaft core 201 for sealing, and the outer circle of the rear end of the threads of the pull rod 202 is provided with the sealing ring 204 to form sealing with the inner hole of the spacer 206; the compression spring 205 is arranged in the pull rod 202, the main function is to enable the piston 207 to be supported by elasticity all the time, meanwhile, the floating rod 208 is arranged in front of the piston 207, the clamp spring 215 is arranged in the middle of the floating rod 208 to limit the ejection limit position of the compression spring 205, the sealing rubber sleeve 213 at the front end of the floating rod 208 is enabled to be tightly attached to the pull nail 210 all the time, when high-pressure water enters, an inner hole directly leads to a cutter, the sealing structure effectively prevents cutting fluid from entering the interior of the broach claw 203 and a spindle taper hole, and the service life of a spindle is prolonged.
Claims (1)
1. The utility model provides a machining center main shaft center goes out water seal structure, includes main shaft axle core (201), is provided with pull rod (202) in main shaft axle core (201), and pull rod (202) are connected with handle of a knife (211) through blind rivet (210), and both sides have broach claw (203) about blind rivet (210), and sealing washer (204), its characterized in that are installed with main shaft axle core (201) inner hole wall in broach claw (203) excircle: a compression spring (205) is arranged in the pull rod (202), a piston (207) and a floating rod (208) are sequentially connected in front of the compression spring (205), one end of the floating rod (208) extends out of the pull rod (202) and is installed in a center hole of the broach claw (203), a disc spring (209) is installed at the center hole of the broach claw (203), a spacer sleeve (206) is installed at the front end of the pull rod (202), the front end of the pull rod (202) and the broach claw (203) are locked by threads, the front end of the pull rod (202) is locked by contacting with the disc spring (209), a sealing rubber sleeve (213) which is tightly butted with the broach (210) is arranged at the top of the floating rod (208), a clamp spring (215) is installed on the excircle of the middle part of the floating rod (208), the clamp spring (215) is located in the pull rod (202), a sealing ring (204) is installed on the excircle of the spacer sleeve (206) and the inner wall of the pull rod (202), a sealing ring (204) is installed on the piston (207) and the inner hole wall of the pull rod (202), and a sealing ring (204) is arranged between the inner hole of the piston (207) and the outer circle of the floating rod (208), and a sealing ring (204) is arranged between the outer circle of the blind rivet (210) and the inner hole of the knife handle (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120159644.0U CN214264896U (en) | 2021-01-21 | 2021-01-21 | Machining center main shaft center goes out water seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120159644.0U CN214264896U (en) | 2021-01-21 | 2021-01-21 | Machining center main shaft center goes out water seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214264896U true CN214264896U (en) | 2021-09-24 |
Family
ID=77764914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120159644.0U Active CN214264896U (en) | 2021-01-21 | 2021-01-21 | Machining center main shaft center goes out water seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214264896U (en) |
-
2021
- 2021-01-21 CN CN202120159644.0U patent/CN214264896U/en active Active
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