Deep hole internal thread grinder clamp and deep hole internal thread grinder

Abstract

The utility model discloses a deep hole internal thread grinding machine clamp and deep hole internal thread grinding machine belong to grinding machine technical field, when assembling deep hole internal thread grinding machine clamp, first bearing seat is installed to the mounting hole of base, then the bearing is set up in the inboard of bearing seat and makes the outer ring abuts on the inboard wall of bearing seat, after bearing cover is connected to the rear end of bearing seat, and the outer ring of fixed bearing of bearing cover and the baffle of bearing seat front end is fixed, then, the transmission ring cover is installed in the outside of mandrel, and spring clamp cylinder is installed to the assembly hole of mandrel, and mandrel is installed to the inboard of the inner ring of bearing, and driver is installed to base and is connected to transmission ring, and then the assembly of deep hole internal thread grinding machine clamp is completed, and each part is assembled into deep hole internal thread grinding machine clamp through simple, and the assembly of deep hole internal thread grinding machine clamp is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of grinding machine technology, and in particular to a deep hole internal thread grinding machine fixture and a deep hole internal thread grinding machine. Background Technology

[0002] Deep hole internal thread grinding machines are specifically designed for machining internal threads in deep holes, such as ball nuts and internally threaded pipes. Currently, deep hole internal thread grinding machines use a fixture to hold the workpiece externally, and are equipped with translation and rotation mechanisms to drive the fixture's rotation and translation. The grinding wheel then machines the internal thread on the inner wall of a pre-drilled hole in the workpiece. However, existing deep hole internal thread grinding machine fixtures have relatively complex structures and are difficult to assemble. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a deep hole internal thread grinding machine fixture and a deep hole internal thread grinding machine. The various components are simply assembled into a deep hole internal thread grinding machine fixture, making the assembly of the deep hole internal thread grinding machine fixture more convenient.

[0004] According to a first aspect of the present invention, a deep hole internal thread grinding machine fixture includes: The base has through mounting holes at the front and back; A bearing housing is provided in the mounting hole, with the position of the axis of the mounting hole relative to the bearing housing as the inner side, and the front end of the bearing housing is provided with an inwardly protruding stop. A bearing cap is located at the rear end of the bearing housing; The bearing has an outer ring and an inner ring, the outer ring being confined between the stop block and the bearing cap, and the inner ring being rotatably connected to the inside of the outer ring; A mandrel is located on the inner side of the inner ring, and the mandrel has a through mounting hole. A spring clip is disposed in the assembly hole; A transmission ring is fitted over the outside of the spindle; A driver, located on the base and connected to the transmission ring, drives the transmission ring to rotate the spindle around the axis of the mounting hole.

[0005] The deep hole internal thread grinding machine fixture according to the present utility model embodiment has at least the following beneficial effects: When assembling the deep hole internal thread grinding machine fixture, firstly, the bearing housing is installed into the mounting hole of the base, then the bearing is placed inside the bearing housing so that the outer ring abuts against the inner wall of the bearing housing, and then the bearing cover is connected to the rear end of the bearing housing so that the bearing cover and the stop block at the front end of the bearing housing fix the outer ring of the bearing; then, the transmission ring is fitted onto the outside of the mandrel, the spring collet is installed into the mounting hole of the mandrel, the mandrel is installed into the inner side of the inner ring of the bearing, and the driver is installed on the base and connected to the transmission ring, thereby completing the assembly of the deep hole internal thread grinding machine fixture. The various components are simply assembled into the deep hole internal thread grinding machine fixture, making the assembly of the deep hole internal thread grinding machine fixture more convenient.

[0006] According to some embodiments of this utility model, the diameter of the assembly hole gradually decreases from front to back, the spring collet is slidably disposed in the assembly hole, and the deep hole internal thread grinding machine fixture further includes: A locking element is slidably connected to the spindle. The rear end of the locking element is connected to the front side of the spring clamp. When the locking element moves backward, it causes the spring clamp to move backward and clamp inward. When the locking element moves forward, it causes the spring clamp to move forward and relax outward.

[0007] According to some embodiments of the present invention, the locking member is rotatably connected to the spring clamp, the locking member rotates about the axis of the spring clamp, the front end of the spindle is provided with a threaded hole, the outer side wall of the locking member is provided with a threaded ring, and the threaded ring cooperates with the threaded hole.

[0008] According to some embodiments of the present invention, the outer wall of the spring clip is provided with an outwardly protruding protrusion, and the locking member includes: The front retaining ring is rotatably mounted on the front side of the protrusion; A rear retaining ring is connected to the front retaining ring, and the rear retaining ring is rotatably disposed on the rear side of the protrusion; The outer ring is rotatably disposed outside the front retaining ring, and the threaded ring is disposed on the outer side wall of the outer ring.

[0009] According to some embodiments of the present invention, the mandrel includes: The main cylinder is located inside the inner ring, and the outer side wall of the main cylinder is provided with an outwardly protruding ring, which abuts against the front end of the inner ring. An abutment ring is detachably connected to the rear end of the main cylinder, and the abutment ring abuts against the rear end of the inner ring; A base plate is located inside the main cylinder, and the base plate is provided with the assembly hole.

[0010] According to some embodiments of this utility model, the outer side wall of the main cylinder is provided with an external thread, and the inner side wall of the abutment ring is provided with an internal thread, wherein the internal thread mates with the external thread.

[0011] According to some embodiments of the present invention, a first sealing ring is provided between the outer side wall of the convex ring and the inner side wall of the stop block, a second sealing ring is provided between the outer side wall of the abutment ring and the inner side wall of the bearing cover, and a third sealing ring is provided between the inner side wall of the abutment ring and the outer side wall of the main cylinder.

[0012] According to some embodiments of the present invention, the outer wall of the transmission ring is provided with a worm gear, the driver is provided with a worm, and the worm gear cooperates with the worm gear.

[0013] According to some embodiments of the present invention, a fourth sealing ring is provided between the outer side wall of the mandrel and the inner side wall of the mounting hole, and a fifth sealing ring is provided between the inner side wall of the transmission ring and the outer side wall of the bearing seat.

[0014] The deep hole internal thread grinding machine according to the second aspect of the present invention includes the deep hole internal thread grinding machine fixture as described in the above embodiment.

[0015] The deep hole internal thread grinding machine according to the present invention has at least the following beneficial effects: When assembling the deep hole internal thread grinding machine fixture, the bearing housing is first installed into the mounting hole of the base, and then the bearing is placed inside the bearing housing so that the outer ring abuts against the inner wall of the bearing housing. Then, the bearing cover is connected to the rear end of the bearing housing, and the bearing cover and the stop block at the front end of the bearing housing fix the outer ring of the bearing. After that, the transmission ring is fitted onto the outside of the mandrel, the spring collet is installed into the mounting hole of the mandrel, the mandrel is installed inside the inner ring of the bearing, and the driver is installed on the base and connected to the transmission ring, thereby completing the assembly of the deep hole internal thread grinding machine fixture. The various components are simply assembled into the deep hole internal thread grinding machine fixture, making the assembly of the deep hole internal thread grinding machine fixture more convenient. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a deep hole internal thread grinding machine fixture according to an embodiment of the present invention; Figure 2 This is a cross-sectional schematic diagram of a deep hole internal thread grinding machine fixture according to an embodiment of the present invention; Figure 3 This is an exploded view of a deep hole internal thread grinding machine fixture according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a deep hole internal thread grinding machine according to an embodiment of the present invention.

[0017] Reference numerals: Base 100, Mounting hole 110, Bearing housing 200, Stop block 201, Bearing cover 210, Bearing 220, Outer ring 221, Inner ring 222, Mandrel 300, Main cylinder 301, Abutment ring 302, Base plate 303, Assembly hole 310, Threaded hole 320, Convex ring 330, External thread 340, Internal thread 350, Spring collet 400, Protrusion 410, Drive ring 500, Worm gear 510, Driver 600, Worm 610, Locking element 700, Front retaining ring 701, Rear retaining ring 702, Outer ring 703, Threaded ring 710, First sealing ring 800, Second sealing ring 810, Third sealing ring 820, Fourth sealing ring 830, Fifth sealing ring 840, Workpiece 900. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the terms front, back, up, down, axial, circumferential, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.

[0021] In the description of this utility model, it should be noted that terms such as "setting," "installing," and "connecting" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are some embodiments of this utility model, not all embodiments.

[0023] Reference Figures 1 to 3 As shown, this utility model provides a deep hole internal thread grinding machine fixture.

[0024] The deep hole internal thread grinding machine fixture includes a base 100, a bearing housing 200, a bearing cover 210, a bearing 220, a spindle 300, a spring collet 400, a transmission ring 500, a driver 600, and a locking element 700.

[0025] The base 100 is provided with a mounting hole 110 that runs through the front and rear directions. The inner side wall of the mounting hole 110 is provided with an inner flange that protrudes towards the axis. The bearing housing 200 is disposed in the mounting hole 110. The rear end of the bearing housing 200 is provided with an outwardly extending flange. The front side of the flange abuts against the rear side of the inner flange. The flange and the inner flange are connected by screws. The front end of the bearing housing 200 is provided with an inwardly extending stop 201.

[0026] The bearing 220 is provided with an outer ring 221 and an inner ring 222. The outer ring 221 of the bearing 220 is located inside the bearing housing 200. The outer side wall of the outer ring 221 abuts against the inner side wall of the bearing housing 200. The inner side wall of the outer ring 221 is rotatably connected to the outer side wall of the inner ring 222. The front end face of the outer ring 221 abuts against the rear side wall of the stop block 201.

[0027] The bearing cover 210 is connected to the rear end face of the flange of the bearing housing 200 by screws. The front end of the bearing cover 210 is provided with a forward-protruding rib. The rib surrounds the bearing cover 210 in a circle and extends into the inner side of the bearing housing 200. The front side wall of the rib abuts against the rear side wall of the outer ring 221, thereby fixing the outer ring 221 of the bearing 220 between the stop block 201 and the rib. A sixth sealing ring is provided between the outer side wall of the rib and the inner side wall of the bearing housing 200.

[0028] The spindle 300 includes a main cylinder 301, an abutment ring 302, and a base plate 303. The main cylinder 301 is cylindrical and is located inside the inner ring 222 of the bearing 220. The outer wall of the main cylinder 301 abuts against the inner side of the inner ring 222. The front end of the main cylinder 301 is provided with an outwardly protruding convex ring 330, which surrounds the main cylinder 301 circumferentially. The position of the convex ring 330 corresponds to the position of the stop block 201.

[0029] An external thread 340 is provided on the outer side wall of the rear end of the main cylinder 301, and an annular space for installing the abutment ring 302 is left between the external thread 340 and the bearing cover 210. An internal thread 350 is provided on the inner side wall of the abutment ring 302. The abutment ring 302 is fitted onto the rear end of the main cylinder 301. The internal thread 350 of the abutment ring 302 and the external thread 340 of the main cylinder 301 cooperate to fix the abutment ring 302 to the rear end of the main cylinder 301. The rear side of the convex ring 330 abuts against the front end of the inner ring 222 of the bearing 220, and the front end face of the abutment ring 302 abuts against the rear end of the inner ring 222 of the bearing 220, thereby fixing the inner ring 222 between the convex ring 330 and the abutment ring 302.

[0030] The inner ring 222 rotates relative to the outer ring 221, while a gap is left between the outer wall of the main cylinder 301 and the stop block 201, and a gap is left between the outer wall of the abutment ring 302 and the inner wall of the bearing cover 210, so as to ensure that the main cylinder 301 and the abutment ring 302 can rotate with the inner ring 222.

[0031] A first sealing ring 800 is provided between the outer wall of the convex ring 330 and the inner wall of the stop block 201, a second sealing ring 810 is provided between the outer wall of the abutment ring 302 and the inner wall of the bearing cover 210, and a third sealing ring 820 is provided between the abutment ring 302 and the inner wall of the main cylinder 301. The first sealing ring 800, the second sealing ring 810, the third sealing ring 820 and the sixth sealing ring ensure that the lubricating oil of the bearing 220 will not leak and prevent external cutting coolant from entering the bearing 220.

[0032] The base plate 303 is located at the front end of the main cylinder 301 and is connected to the inner wall of the main cylinder 301. The base plate 303 is provided with an assembly hole 310 that runs through the front and rear directions. The diameter of the assembly hole 310 gradually decreases from front to back. The front end of the base plate 303 is provided with a threaded hole 320. The threaded hole 320 is coaxially arranged with the assembly hole 310, and the diameter of the threaded hole 320 is larger than the diameter of the assembly hole 310.

[0033] The transmission ring 500 is installed in the mounting hole 110 of the base 100. The transmission ring 500 is fitted on the outside of the main cylinder 301. The inner wall of the transmission ring 500 is connected to the outer wall of the main cylinder 301, that is, the transmission ring 500 rotates synchronously with the main cylinder 301. The outer wall of the transmission ring 500 is provided with a worm gear 510.

[0034] The driver 600 includes a drive motor and a worm gear 610. The drive motor is mounted on the top of the base 100. The output shaft of the drive motor is connected to the worm gear 610, which extends in the left-right direction. The worm gear 610 meshes with the worm wheel 510 of the transmission ring 500. The drive motor drives the worm gear 610 to rotate, which in turn drives the worm wheel 510 of the transmission ring 500 to rotate, thereby causing the spindle 300 to rotate accordingly.

[0035] A fourth sealing ring 830 is provided between the outer side wall of the front end of the main cylinder 301 and the inner side wall of the mounting hole 110 of the base 100. The fourth sealing ring 830 is a waterproof baffle. A fifth sealing ring 840 is provided between the inner side wall of the transmission ring 500 and the outer side wall of the bearing seat 200. The fourth sealing ring 830 can prevent external cutting coolant from flowing into the space between the worm gear 510 and the worm 610. The fifth sealing ring 840 can prevent the lubricating oil of the bearing 220 from entering the space between the worm gear 510 and the worm 610. The fourth sealing ring 830 and the fifth sealing ring 840 can prevent the lubricating oil between the worm gear 510 and the worm 610 from leaking outward.

[0036] The spring clip 400 is cylindrical, and its outer diameter gradually decreases from front to back. The side wall of the spring clip 400 is provided with multiple through slots, which allows the front end of the spring clip 400 to retract inward or expand outward.

[0037] A protruding protrusion 410 is provided on the outer side wall of the front end of the spring clip 400, and the protrusion 410 surrounds the circumference of the spring clip 400.

[0038] The locking component 700 includes a front retaining ring 701, a rear retaining ring 702, and an outer ring 703. The front retaining ring 701, the rear retaining ring 702, and the outer ring 703 are all annular. The rear end of the front retaining ring 701 is provided with a groove, which is located on the inner side wall of the front retaining ring 701. The protrusion 410 of the spring clip 400 is placed in the groove. The rear retaining ring 702 is connected to the rear end face of the front retaining ring 701. The rear retaining ring 702 is used to restrict the protrusion 410 in the groove, thereby ensuring that the front retaining ring 701, the rear retaining ring 702, and the spring clip 400 can move synchronously in the front-back direction.

[0039] The outer ring 703 is fitted onto the outside of the front bumper ring 701. A threaded ring 710 is provided on the outer side wall of the outer ring 703, and the threaded ring 710 surrounds the outer ring 703 circumferentially.

[0040] The spring clamp 400 is installed in the mounting hole 310 of the base plate 303 from front to back, and the threaded ring 710 of the outer ring 703 is fitted into the threaded hole 320 at the front end of the base plate 303. By rotating the outer ring 703, the threaded ring 710 rotates along the threaded hole 320 and moves in the front-back direction, thereby driving the spring clamp 400 to move back and forth along the mounting hole 310, so that the spring clamp 400 clamps inward or relaxes outward.

[0041] The steps for assembling a deep hole internal thread grinding machine fixture are as follows.

[0042] First, install the bearing housing 200 into the mounting hole 110 of the base 100. Then, place the front side of the flange at the rear end of the bearing housing 200 against the rear side of the inner flange of the mounting hole 110. The flange and the inner flange are connected by screws.

[0043] Next, the bearing 220 is placed inside the bearing housing 200 so that the outer ring 221 abuts against the inner wall of the bearing housing 200. Then, the bearing cover 210 is connected to the rear end of the bearing housing 200. The bearing cover 210 is connected to the rear end face of the flange of the bearing housing 200 by screws, so that the protrusion at the front end of the bearing cover 210 extends into the inner side of the bearing housing 200. The front side wall of the protrusion abuts against the rear side wall of the outer ring 221, thereby fixing the outer ring 221 of the bearing 220 between the stop block 201 and the protrusion. A sixth sealing ring is provided between the outer side wall of the protrusion and the inner wall of the bearing housing 200.

[0044] Next, the transmission ring 500 is fitted onto the outside of the main cylinder 301. A first sealing ring 800 is provided on the inner wall of the stop block 201, and a fifth sealing ring 840 is provided at the position where the transmission ring 500 is directly opposite the outer wall of the bearing seat 200. The main cylinder 301 is inserted into the inner ring 222 of the bearing 220 from front to back, so that the outer wall of the main cylinder 301 abuts against the inner wall of the inner ring 222, and the convex ring 330 of the main cylinder 301 is directly opposite the stop block 201. A second sealing ring 810 is installed on the outer wall of the abutment ring 302, and a third sealing ring 840 is installed on the inner wall of the abutment ring 302. After sealing ring 820, the abutment ring 302 is engaged with the external thread 340 at the rear end of the main cylinder 301 using the internal thread 350. By tightening the abutment ring 302, the abutment ring 302 moves forward to abut the rear end of the inner ring 222, while the convex ring 330 at the front end of the main cylinder 301 abuts the front end of the inner ring 222, so that the inner ring 222 is fixed between the convex ring 330 and the abutment ring 302. The base plate 303 is installed inside the main cylinder 301, and the base plate 303 and the main cylinder 301 are connected by screws. The fourth sealing ring 830 is installed on the outer side wall at the front end of the main cylinder 301.

[0045] The driver 600 is then installed on top of the base 100, and the worm 610 of the driver 600 is engaged with the worm wheel 510 on the outer wall of the transmission ring 500.

[0046] Finally, the spring clip 400 is secured using the locking element 700. The protrusion 410 at the front end of the spring clip 400 is placed into the groove on the rear side of the front retaining ring 701. The rear retaining ring 702 is then fitted onto the outside of the spring clip 400, connecting with the rear end face of the front retaining ring 701, thus fixing the protrusion 410 in the groove. The outer ring 703 is then fitted onto the outside of the front retaining ring 701. Finally, the rear end of the spring clip 400 is inserted into the mounting plate 303. In the mounting hole 310, rotating the outer ring 703 causes the threaded ring 710 to engage with the threaded hole 320 at the front end of the base plate 303, thereby causing the outer ring 703 to push the front retaining ring 701, the spring clamp 400, and the rear retaining ring 702 to move backward; the workpiece is placed inside the spring clamp 400, and the locking member 700 drives the spring clamp 400 to move back and forth along the mounting hole 310 of the base plate 303, so that the spring clamp 400 clamps the workpiece inward or releases the workpiece outward.

[0047] Reference Figure 4 As shown, this utility model also provides a deep hole internal thread grinding machine, which includes the deep hole internal thread grinding machine fixture of the above embodiment.

[0048] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A fixture for a deep hole internal thread grinding machine, characterized in that, include: The base has through mounting holes at both the front and back; A bearing housing is provided in the mounting hole, with the position of the axis of the mounting hole relative to the bearing housing as the inner side, and the front end of the bearing housing is provided with an inwardly protruding stop. A bearing cap is located at the rear end of the bearing housing; The bearing has an outer ring and an inner ring, the outer ring being confined between the stop block and the bearing cap, and the inner ring being rotatably connected to the inside of the outer ring; A mandrel is located on the inner side of the inner ring, and the mandrel has a through mounting hole. A spring clip is disposed in the assembly hole; A transmission ring is fitted over the outside of the spindle; A driver, located on the base and connected to the transmission ring, drives the transmission ring to rotate the spindle around the axis of the mounting hole.

2. The deep hole internal thread grinding machine fixture according to claim 1, characterized in that, The diameter of the assembly hole gradually decreases from front to back, and the spring collet is slidably disposed in the assembly hole. The deep hole internal thread grinding machine fixture also includes: A locking element is slidably connected to the spindle. The rear end of the locking element is connected to the front side of the spring clamp. When the locking element moves backward, it causes the spring clamp to move backward and clamp inward. When the locking element moves forward, it causes the spring clamp to move forward and relax outward.

3. The deep hole internal thread grinding machine fixture according to claim 2, characterized in that, The locking member is rotatably connected to the spring clamp, and the locking member rotates about the axis of the spring clamp. The front end of the spindle is provided with a threaded hole, and the outer side wall of the locking member is provided with a threaded ring, which engages with the threaded hole.

4. The deep hole internal thread grinding machine fixture according to claim 3, characterized in that, The outer wall of the spring clip is provided with an outwardly protruding protrusion, and the locking element includes: The front retaining ring is rotatably mounted on the front side of the protrusion; A rear retaining ring is connected to the front retaining ring, and the rear retaining ring is rotatably disposed on the rear side of the protrusion; The outer ring is rotatably disposed outside the front retaining ring, and the threaded ring is disposed on the outer side wall of the outer ring.

5. The deep hole internal thread grinding machine fixture according to claim 1, characterized in that, The mandrel includes: The main cylinder is located inside the inner ring, and the outer side wall of the main cylinder is provided with an outwardly protruding ring, which abuts against the front end of the inner ring. An abutment ring is detachably connected to the rear end of the main cylinder, and the abutment ring abuts against the rear end of the inner ring; A base plate is located inside the main cylinder, and the base plate is provided with the assembly hole.

6. The deep hole internal thread grinding machine fixture according to claim 5, characterized in that, The outer side wall of the main cylinder is provided with external threads, and the inner side wall of the abutment ring is provided with internal threads, the internal threads engaging with the external threads.

7. The deep hole internal thread grinding machine fixture according to claim 5, characterized in that, A first sealing ring is provided between the outer wall of the convex ring and the inner wall of the stop block, a second sealing ring is provided between the outer wall of the abutment ring and the inner wall of the bearing cover, and a third sealing ring is provided between the inner wall of the abutment ring and the outer wall of the main cylinder.

8. The deep hole internal thread grinding machine fixture according to claim 1, characterized in that, The outer wall of the transmission ring is provided with a worm gear, and the driver is provided with a worm, which cooperates with the worm gear.

9. The deep hole internal thread grinding machine fixture according to claim 8, characterized in that, A fourth sealing ring is provided between the outer wall of the mandrel and the inner wall of the mounting hole, and a fifth sealing ring is provided between the inner wall of the transmission ring and the outer wall of the bearing seat.

10. A deep hole internal thread grinding machine, characterized in that, Includes a deep hole internal thread grinding machine fixture as described in any one of claims 1 to 9.

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