Bidirectional machining device for shaft parts
By using fixture disc components and gear systems in the bidirectional machining device of shaft-type parts, the intermediate clamping and bidirectional synchronous machining of shaft-type parts are achieved, and the accuracy deviation caused by secondary clamping is solved, ensuring high-precision coaxiality , and simplifies the installation process.
Patent Information
- Application Number
- CN202421187034.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-28
AI Technical Summary
When machining shaft parts on lathes, secondary clamping causes the axis center of the part to displace, resulting in a deviation in machining accuracy.
Design a bidirectional machining device for shaft parts, by clamping parts in the middle of the machining shaft sleeve, using the clamp disc assembly and gear system to achieve bidirectional synchronous machining of parts, ensuring the accuracy of coaxiality.
The two-way synchronous machining of parts is realized, which avoids accuracy deviations caused by secondary clamping, ensures the coaxiality of ultra-high-precision products, and has a simple structure and easy installation. The fixture disc assembly effectively prevents product slippage.
Smart Images
Figure CN222327478U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mechanical processing and is a bidirectional processing device for shaft parts. Background Art
[0002] At present, when machining shaft parts using lathes, if machining the peripheral wall of the part, then use a clamp to hold the axis centerline position of the two ends of the part. If machining the end of the part, then use the three jaws of the chuck to clamp the peripheral wall of the part. After machining one end, release the part, turn the part 180° and clamp it again to machine the other end. This method of machining the ends of shaft parts requires secondary clamping, which can easily cause the axis centerline of the part to shift and cause deviations in machining accuracy. Utility Model Content
[0003] The purpose of the utility model is to address the above-mentioned problems in the existing technology and to propose a bidirectional processing device for shaft parts, which can clamp the shaft parts in the middle of the processing sleeve, realize bidirectional synchronous processing of the parts, ensure the coaxiality of ultra-high precision products, and avoid accuracy deviation caused by secondary clamping.
[0004] The purpose of the utility model can be achieved through the following technical solutions: a bidirectional processing device for shaft parts, including a base, a mounting box, a processing sleeve and a power input shaft, the mounting box is fixed on the base, and is characterized in that a connected power cavity and a processing cavity are opened on the mounting box, a first bearing group is embedded in the processing cavity, the inner ring of the first bearing group is fixed to the processing sleeve, a driven gear is fixed on the outside of the processing sleeve, a second bearing group is embedded in the power cavity, the inner ring of the second bearing group is fixed to the power input shaft, and an active gear meshing with the driven gear is fixed on the outside of the power input shaft. The gear, the inner wall of the processing shaft sleeve has an annular protruding mounting ring, the mounting ring is provided with circumferentially evenly distributed threaded holes, and the two sides of the mounting ring are respectively fixed with a clamp disk assembly by bolts, and the clamp disk assembly includes two semi-circular disc-shaped clamping plates, and the edges of the clamping plates are circumferentially evenly provided with a number of mounting holes for the bolts to pass through, and the mounting holes correspond to the threaded holes one by one. The mating surfaces of the two clamping plates are provided with transversely penetrating arc grooves for clamping shaft parts, and the end faces of the clamping plates have protruding connecting blocks, and the connecting blocks are abutted against each other when the two clamping plates are spliced, and the connecting blocks are provided with connecting holes for the bolts to pass through.
[0005] Furthermore, the first bearing group includes two deep groove ball bearings and one single row cylindrical roller bearing, and the second bearing group includes two tapered roller bearings.
[0006] Furthermore, the upper end of the installation box is open and is fixed with an upper cover by bolts. Opening the upper cover facilitates the removal of the driving gear.
[0007] Furthermore, a pulley is fixed at one end of the power input shaft, a front cover of the power input shaft is sleeved at the front end of the power input shaft, and a rear cover of the power input shaft is sleeved at the rear end of the power input shaft. The front cover of the input shaft is fixed to the front end of the mounting box by bolts, and the rear cover of the input shaft is fixed to the rear end of the mounting box by bolts.
[0008] Furthermore, the front end of the processing sleeve is covered with a spindle front end cover, and the rear end of the processing sleeve is covered with a spindle rear end cover. The spindle front end cover is fixed to the front end of the installation box by bolts, and the spindle rear end cover is fixed to the rear end of the installation box by bolts.
[0009] Furthermore, a front spindle locking ring is embedded in the inner side of the front end cover of the spindle, and a rear spindle locking ring is embedded in the inner side of the rear end cover of the spindle.
[0010] Furthermore, a gear spacer is sleeved outside the processing sleeve, and a protruding retaining edge is provided on the outside of the processing sleeve, one side of the driving gear abuts against the retaining edge, and the other side of the driving gear abuts against the gear spacer.
[0011] The motor drives the pulley to rotate through the leather ring, driving the power input shaft to rotate. The power input shaft drives the processing sleeve to rotate through the linkage of the driving gear and the driven gear. The shaft parts are coaxially arranged with the processing sleeve through the clamping plate assembly, and the shaft parts can be cut from both ends respectively.
[0012] Compared with the prior art, the bidirectional processing device for shaft parts has the following advantages:
[0013] 1. The shaft parts can be clamped in the middle of the machining sleeve to achieve two-way synchronous machining of the parts, ensure the coaxiality of ultra-high precision products, and avoid the accuracy deviation caused by secondary clamping.
[0014] 2. Simple structure, easy installation, the clamp disc assembly is used to clamp the product firmly to prevent it from slipping. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a cross-sectional view of the bidirectional processing device for shaft parts.
[0016] Figure 2 It is the front view of the bidirectional processing device for shaft parts.
[0017] Figure 3 is a perspective view of the fixture plate assembly.
[0018] In the figure, 1, base; 2, mounting box; 201, power cavity; 202, machining cavity; 3, machining sleeve; 301, mounting ring; 302, threaded hole; 303, retaining edge; 4, power input shaft; 5, driven gear; 6, driving gear; 7, clamping plate; 701, mounting hole; 702, arc groove; 703, connecting block; 704, connecting hole; 8, deep groove ball bearing; 9, single row cylindrical roller bearing; 10, tapered roller bearing; 11, upper cover; 12, pulley; 13, input shaft front cover; 14, input shaft rear cover; 15, main shaft front cover; 16, main shaft rear cover; 17, main shaft front locking ring; 18, main shaft rear locking ring; 19, gear spacer; 20, shaft parts. DETAILED DESCRIPTION
[0019] The bidirectional processing device of shaft parts comprises a base 1, an installation box 2, a processing sleeve 3 and a power input shaft 4, the installation box 2 is fixed on the base 1, and a connected power chamber 201 and a processing chamber 202 are opened on the installation box 2, a first bearing group is embedded in the processing chamber 202, the inner ring of the first bearing group is fixed to the processing sleeve 3, a driven gear 5 is fixed to the outer side of the processing sleeve 3, a second bearing group is embedded in the power chamber 201, the inner ring of the second bearing group is fixed to the power input shaft 4, and a driving gear 6 meshing with the driven gear 5 is fixed to the outer side of the power input shaft 4.
[0020] The inner wall of the processed shaft sleeve 3 is provided with an annular protruding mounting ring 301, and the mounting ring 301 is provided with threaded holes 302 evenly distributed in the circumference. A clamp disk assembly is fixed on both sides of the mounting ring 301 by bolts, and the clamp disk assembly includes two semi-disc-shaped clamping plates 7, and the edges of the clamping plates 7 are evenly provided with a plurality of mounting holes 701 for the bolts to pass through. The mounting holes 701 correspond to the threaded holes 302 one by one. The mating surfaces of the two clamping plates 7 are provided with transversely penetrating arc grooves 702 for clamping shaft parts 20. The end faces of the clamping plates 7 are provided with protruding connecting blocks 703. When the two clamping plates 7 are spliced, the connecting blocks 703 are abutted against each other, and the connecting blocks 703 are provided with connecting holes 704 for the bolts to pass through.
[0021] The first bearing group includes two deep groove ball bearings 8 and a single row cylindrical roller bearing 9, and the second bearing group includes two tapered roller bearings 10. The upper end of the mounting box 2 is open and is fixed with an upper cover 11 by bolts. Opening the upper cover 11 facilitates the removal of the driving gear 6.
[0022] A pulley 12 is fixed to one end of the power input shaft 4, a front cover 13 is sleeved on the front end of the power input shaft 4, and a rear cover 14 is sleeved on the rear end of the power input shaft 4. The front cover 13 is fixed to the front end of the mounting box 2 by bolts, and the rear cover 14 is fixed to the rear end of the mounting box 2 by bolts.
[0023] The front end of the processing sleeve 3 is sleeved with a spindle front end cover 15, and the rear end of the processing sleeve 3 is sleeved with a spindle rear end cover 16. The spindle front end cover 15 is fixed to the front end of the mounting box 2 by bolts, and the spindle rear end cover 16 is fixed to the rear end of the mounting box 2 by bolts.
[0024] A spindle front locking ring 17 is embedded in the inner side of the spindle front end cover 15 , and a spindle rear locking ring 18 is embedded in the inner side of the spindle rear end cover 16 .
[0025] The processing sleeve 3 is also covered with a gear spacer 19 . The processing sleeve 3 has a protruding retaining edge 303 on its outer side. One side of the driving gear 6 abuts against the retaining edge 303 , and the other side of the driving gear 6 abuts against the gear spacer 19 .
[0026] During installation, first use the two clamping plates 7 on one side to clamp the shaft parts 20 and lock them by passing bolts through the connecting holes 704, then align the mounting holes 701 on the clamping plates 7 with the threaded holes 302, screw in the bolts and tighten them, and then install the two clamping plates 7 on the other side.
[0027] During processing, the motor is started, and the motor drives the pulley 12 to rotate through the leather ring, driving the power input shaft 4 to rotate. The power input shaft 4 drives the processing sleeve 3 to rotate through the linkage of the driving gear 6 and the driven gear 5. The shaft part 20 is coaxially arranged with the processing sleeve 3 through the clamping disk assembly, and the shaft part 20 can be cut from both ends respectively.
[0028] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.
Claims
1. A bidirectional processing device for shaft parts, comprising a base, a mounting box, a processing sleeve and a power input shaft, wherein the mounting box is fixed on the base, characterized in that: The mounting box is provided with a connected power cavity and a processing cavity, a first bearing group is embedded in the processing cavity, the inner ring of the first bearing group is fixed to the processing sleeve, a driven gear is fixed on the outside of the processing sleeve, a second bearing group is embedded in the power cavity, the inner ring of the second bearing group is fixed to the power input shaft, a driving gear meshing with the driven gear is fixed on the outside of the power input shaft, the inner wall of the processing sleeve is provided with an annular protruding mounting ring, the mounting ring is provided with circumferentially evenly distributed threaded holes, and a clamp disk assembly is fixed on both sides of the mounting ring by bolts, the clamp disk assembly includes two semi-disc-shaped clamping plates, a plurality of mounting holes for bolts to pass through are evenly provided on the edge of the clamping plates, the mounting holes correspond to the threaded holes one by one, a transversely penetrating arc groove for clamping shaft parts is provided on the fitting surfaces of the two clamping plates, the end faces of the clamping plates have protruding connecting blocks, and the connecting blocks are abutted against each other when the two clamping plates are spliced, and the connecting blocks are provided with connecting holes for bolts to pass through.
2. A bidirectional processing device for shaft parts according to claim 1, characterized in that: The first bearing group includes two deep groove ball bearings and a single row cylindrical roller bearing, and the second bearing group includes two tapered roller bearings.
3. A bidirectional processing device for shaft parts according to claim 2, characterized in that: The upper end of the installation box is open and is fixed with an upper cover by bolts.
4. A bidirectional processing device for shaft parts according to claim 3, characterized in that: A pulley is fixed at one end of the power input shaft, a front cover is sleeved on the front end of the power input shaft, and a rear cover is sleeved on the rear end of the power input shaft. The front cover of the input shaft is fixed to the front end of the mounting box by bolts, and the rear cover of the input shaft is fixed to the rear end of the mounting box by bolts.
5. A bidirectional processing device for shaft parts according to claim 4, characterized in that: The front end of the processing sleeve is covered with a spindle front end cover, and the rear end of the processing sleeve is covered with a spindle rear end cover. The spindle front end cover is fixed to the front end of the installation box by bolts, and the spindle rear end cover is fixed to the rear end of the installation box by bolts.
6. A bidirectional processing device for shaft parts according to claim 5, characterized in that: A front locking ring of the main shaft is embedded in the inner side of the front cover of the main shaft, and a rear locking ring of the main shaft is embedded in the inner side of the rear cover of the main shaft.
7. A bidirectional processing device for shaft parts according to claim 6, characterized in that: A gear spacer is also sleeved outside the processing sleeve, and a protruding retaining edge is provided outside the processing sleeve, one side of the driving gear abuts against the retaining edge, and the other side of the driving gear abuts against the gear spacer.