Driving structure for displacement of oil stone in honing device

Abstract

The utility model discloses a driving structure for oil stone displacement in a honing device, which comprises a driving shell, a main shaft, a permanent magnet, an oil stone, an oil stone coil and a rack, the driving shell is arranged on the rack and can do linear motion along the axial direction of the main shaft, the oil stone coil is arranged in an inner hole of the driving shell, the main shaft and the inner hole of the driving shell are coaxially arranged, and the permanent magnet is arranged on the main shaft. The oilstones are evenly distributed in the circumferential direction of the main shaft, the permanent magnets are fixed to the oilstones, and the oilstone coils are electrified to interact with the permanent magnets and enable the oilstones to move in the radial direction of the main shaft. Through the mutual matching of the coil and the permanent magnet, the radial displacement of the oilstone is realized, so that the structure is more simplified, the maintenance is convenient, and the use effect is good.

Description

Technical Field

[0001] The utility model relates to a driving structure for oilstone displacement in a honing device. Background Art

[0002] The existing honing oilstone feed motion control mainly includes two modes: electronic hydraulic feed and electronic mechanical feed. The electronic hydraulic feed has a slow oil return speed, which makes the oilstone return slowly and easily causes "over-grinding". The electronic mechanical feed structure is mainly a wedge block structure, which makes the oilstone undergo radial displacement along the active direction through the cooperation of the cross section. The structure is complex and needs frequent maintenance due to damage. Summary of the invention

[0003] The utility model provides a driving structure for the displacement of an oilstone in a honing device in order to solve the problems existing in the prior art.

[0004] The technical solutions adopted in this utility model are:

[0005] A driving structure for oilstone displacement in a honing device comprises a driving shell, a main shaft, a permanent magnet, an oilstone, an oilstone coil and a frame. The driving shell is placed on the frame and can perform linear motion along the axial direction of the main shaft. The oilstone coil is arranged in the inner hole of the driving shell. The main shaft and the inner hole of the driving shell are coaxially arranged. The oilstones are evenly distributed along the circumference of the main shaft. The permanent magnet is fixed to the oilstone. The oilstone coil is energized to interact with the permanent magnet and cause the oilstone to displace along the radial direction of the main shaft.

[0006] Furthermore, a retaining frame is fixed on the main shaft, and the oilstone is slidably connected to the retaining frame.

[0007] Furthermore, a plurality of guide grooves are evenly distributed in the circumferential direction of the retaining frame, and the oilstone is slidably placed in the guide grooves and moves in the guide grooves along the radial direction of the main shaft.

[0008] Furthermore, at least two annular springs are arranged in the circumferential direction of the main shaft, and the annular springs are penetrated through all the permanent magnets or oilstones.

[0009] Furthermore, a mounting groove is provided on an end surface of the oilstone on one side close to the main shaft, and the permanent magnet is assembled in the mounting groove.

[0010] Furthermore, the frame is provided with a fixing seat, two fixing seats are fixed on the frame at intervals, each fixing seat is provided with a fixing hole and a locking bolt, the locking bolt is threadedly connected to the fixing seat and one end thereof extends into the fixing hole.

[0011] Furthermore, the movement of the driving housing is driven by an electric lead screw mechanism or an electric slide rail mechanism.

[0012] The utility model has the following beneficial effects:

[0013] The utility model realizes radial displacement of the oilstone through the mutual cooperation of the coil and the permanent magnet, so that the structure is more simplified, the maintenance is convenient, and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural diagram of the utility model.

[0015] Figure 2 This is a structural diagram between the oilstone coil and the oilstone.

[0016] Figure 3 This is the assembly drawing of the oilstone on the spindle.

[0017] Figure 4 This is a structural diagram of the cage. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] like Figure 1 and Figure 2 The utility model discloses a driving structure for oilstone displacement in a honing device, comprising a driving shell 11, a spindle 21, a permanent magnet 31, an oilstone 32, an oilstone coil 33 and a frame 61. The driving shell 11 is placed on the frame 61 and can perform linear motion along the axial direction of the spindle 21. A through inner hole is provided in the axial direction of the driving shell 11. The oilstone coil 33 is arranged in the inner hole of the driving shell 11. The spindle 21 is coaxially arranged with the inner hole of the driving shell 11. A plurality of oilstones 32 are uniformly distributed along the circumference of the spindle 21. The permanent magnet 31 is fixed to the oilstone 32. The oilstone coil 33 is energized to interact with the permanent magnet 31 and cause the oilstone 32 to displace along the radial direction of the spindle.

[0020] like Figure 3 and Figure 4 The assembly structure of the oilstone 32 on the main shaft 21 is as follows: a retainer 214 is fixed on the main shaft 21 (fixed by interference fit or bolts or using a key and keyway assembly structure), and the oilstone 32 is slidably connected to the retainer 214.

[0021] The retainer 214 is a spoke-type structure, including two mounting rings 216, which are fixed by connecting ribs 217. A plurality of open guide grooves 215 are evenly distributed in the circumferential direction of each mounting ring 216, and the guide grooves are arranged along the radial direction of the mounting ring 216. Both ends of the oilstone 32 are placed in the guide grooves 215 and are matched with the guide groove clearance. The oilstone 32 can be displaced in the guide groove along the radial direction of the main shaft.

[0022] When in use, the oilstone coil 33 is energized to generate magnetism and attract the oilstone 32 to move radially, so that the oilstone 32 contacts the inner hole surface of the workpiece 400 to be polished.

[0023] The oilstone 32 can be reset by passing a reverse current into the oilstone coil 33, or an elastic structure can be provided on the oilstone to reset it by elastic force. The specific structure is as follows:

[0024] At least two annular springs 34 are arranged in the circumferential direction of the main shaft 21 . The annular spring 34 is arranged coaxially with the main shaft 21 . The annular spring 34 penetrates all the permanent magnets 31 or the oilstones 32 .

[0025] When the oilstone coil 33 is energized to generate magnetism, the oilstone 32 is radially displaced and the annular spring 34 is elastically deformed. After the oilstone coil 33 is de-energized, the annular spring 34 is reset to reset the oilstone, or a directional current is passed through the oilstone coil 33 to reset the oilstone through the repulsive force of the magnetic field and the reset tension of the spring.

[0026] The oilstone 32 and the permanent magnet 31 in the utility model are detachable inlay structures, specifically, a mounting groove is provided on the inner end surface of the oilstone 32, and the permanent magnet 31 is embedded in the mounting groove. The detachable assembly structure is adopted to facilitate the replacement of the vulnerable parts (i.e. the oilstone).

[0027] Two fixing seats 62 are provided on the frame 61, and the two fixing seats 62 are arranged at intervals. A fixing hole and a locking bolt are provided on each fixing seat, and the locking bolt is threadedly connected to the fixing seat and one end of the locking bolt extends into the fixing hole. The fixing seat 62 is used to fix the workpiece 400 to be polished. The movement of the drive housing 11 on the frame 61 is driven by an electric screw mechanism or an electric slide mechanism.

[0028] In this embodiment, an electric screw mechanism is used to drive the movement of the drive shell 11 on the frame 61. When in use, the two ends of the workpiece 400 to be polished are fixed on two fixed seats, and the workpiece passes through the drive shell 11. The workpiece is placed on the inner side of the oilstone coil 33, and the spindle 21 rotates and performs axial displacement. During the axial displacement process, the electric screw mechanism and the spindle 21 maintain synchronous displacement, and the oilstone coil 33 is energized to interact with the permanent magnet 31 and cause the oilstone 32 to displace along the radial direction of the spindle. The oilstone 32 contacts the inner hole wall of the workpiece 400, and the spindle 21 rotates to achieve the grinding of the inner hole wall of the workpiece 400 by the oilstone 32.

[0029] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be regarded as within the protection scope of the present invention.

Claims

1. A driving structure for oilstone displacement in a honing device, characterized in that: The invention comprises a drive housing (11), a main shaft (21), a permanent magnet (31), an oilstone (32), an oilstone coil (33) and a frame (61); the drive housing (11) is placed on the frame (61) and can perform linear motion along the axial direction of the main shaft (21); the oilstone coil (33) is arranged in the inner hole of the drive housing (11); the main shaft (21) and the inner hole of the drive housing (11) are coaxially arranged; the oilstone (32) is evenly distributed along the circumference of the main shaft (21); the permanent magnet (31) and the oilstone (32) are fixed; the oilstone coil (33) is energized to interact with the permanent magnet (31) and cause the oilstone (32) to move along the radial direction of the main shaft.

2. The driving structure for the displacement of the oilstone in the honing device according to claim 1, characterized in that: A retaining frame (214) is fixed on the main shaft (21), and an oil stone (32) is slidably connected to the retaining frame (214).

3. The driving structure for the displacement of the oilstone in the honing device according to claim 2, characterized in that: The retaining frame (214) is evenly distributed with a plurality of guide grooves (215) in the circumferential direction. The oilstone (32) is slidably placed in the guide grooves and moves in the guide grooves along the radial direction of the main shaft.

4. The driving structure for the displacement of the oilstone in the honing device according to claim 1, characterized in that: At least two annular springs (34) are arranged in the circumferential direction of the main shaft (21), and the annular springs (34) are penetrated through all the permanent magnets (31) or oilstones (32).

5. The driving structure for the displacement of the oilstone in the honing device according to claim 1, characterized in that: A mounting groove is provided on one end surface of the oilstone (32) close to the main shaft (21), and the permanent magnet (31) is mounted in the mounting groove.

6. The driving structure for the displacement of the oilstone in the honing device according to claim 1, characterized in that: The frame (61) is provided with a fixing seat (62), and two fixing seats (62) are fixed on the frame (61) at intervals. Each fixing seat is provided with a fixing hole and a locking bolt, and the locking bolt is threadedly connected to the fixing seat and one end of the locking bolt extends into the fixing hole.

7. The driving structure for the displacement of the oilstone in the honing device according to claim 1, characterized in that: The movement of the drive housing (11) is driven by an electric lead screw mechanism or an electric slide rail mechanism.

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