Quick replacement die of centerless grinding machine

Abstract

The utility model relates to the technical field of centerless grinding machines, and discloses a centerless grinding machine quick replacement die which comprises a grinding machine base and a die holder, first sliding grooves are formed in the two sides of the top end of the grinding machine base respectively, a set of electric control telescopic columns are embedded in the two first sliding grooves respectively, a first limiting frame is installed at the output end of each set of electric control telescopic columns, and a second limiting frame is installed at the output end of each set of electric control telescopic columns. And a group of first rollers are rotationally arranged on the inner sides of the two first limiting frames, and second limiting frames are mounted on one sides of the two first sliding grooves correspondingly. According to the utility model, when the die holder needs to be taken down, the electric control telescopic column extends out to enable the first limiting frame to move upwards, so that the positions of the first roller and the second roller are flush, and then the die holder is pulled outwards, so that the die holder can be taken out, and when the die holder is installed, the two sliding blocks at the bottom end of the die holder are inserted into the tops of the two second limiting frames at the same time; and then the mold base is pushed to the tail end of the first sliding groove, and finally the electric control telescopic column is contracted to the tail end.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of centerless grinding machine, especially to a centerless grinding machine quick replacement mould. BACKGROUND

[0002] Centerless grinding machine is a kind of machine tool for grinding cylindrical workpieces (such as shafts, sleeves, etc.). It has the advantages of high automation, high machining precision, high production efficiency and easy operation, and centerless grinding technology is based on the friction and cutting action of high-speed abrasive particles on the surface of workpiece. This grinding method can provide good surface quality and dimensional accuracy.

[0003] The mould of centerless grinding machine is usually installed in the middle position of the grinding machine, and the periphery of the mould is limited by the frame of the grinding machine, so it is difficult for the workers to quickly take out and put in the grinding machine, which consumes a lot of time.

[0004] Therefore, the skilled person in the art provides a centerless grinding machine quick replacement mould to solve the problems raised in the background art. SUMMARY

[0005] The utility model discloses a centerless grinding machine quick replacement mould to solve the problems existing in the prior art, when the die holder needs to be taken down, the first limiting frame is moved upward by the extension of the electric control telescopic column, the positions of the first roller and the second roller are flush, then the die holder is pulled out, when installing the die holder, the two sliding blocks at the bottom end of the die holder are inserted into the top of the two second limiting frames at the same time, then the die holder is pushed to the end of the first sliding slot, finally the electric control telescopic column is retracted to the tail end, wherein the cooperation of the first roller, the second roller and the first sliding block can improve the moving speed of the die holder, so that the die module can be quickly replaced, and the design is front and rear sliding design, which is not affected by the side frame of the centerless grinding machine.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A centerless grinding machine quick replacement mould, comprising a grinding machine seat and a die holder, the bottom end of the die holder is integrally provided with a first sliding block on both sides, the top end of the grinding machine seat is provided with a first sliding slot on both sides, a group of electric control telescopic columns are inlaid in the two first sliding slots, a first limiting frame is installed at the output end of each group of electric control telescopic columns, a group of first rollers are rotatably arranged on the inner side of the two first limiting frames, a second limiting frame is installed on one side of the two first sliding slots, and a group of second rollers are rotatably arranged on the inner side of the two second limiting frames.

[0008] Through the technical scheme, when the mold base needs to be removed, the first limiting frame is moved upward by the extension of the electric control telescopic column, the positions of the first roller and the second roller are flush, and then the mold base is pulled out, when the mold base is installed, the two sliding blocks at the bottom end of the mold base are inserted into the top of the two second limiting frames at the same time, then the mold base is pushed to the end of the first sliding groove, and finally the electric control telescopic column is retracted to the tail end, wherein the cooperation of the first roller, the second roller and the first sliding block can improve the moving speed of the mold base, so that the mold group can be quickly replaced, and the design is front and rear sliding design, which is not affected by the side frame of the centerless grinding machine.

[0009] Further, a fixed block is integrally arranged in the middle of one side of the grinding machine base, the fixed block is sequentially provided with a movable groove and a fixed groove from top to bottom, a lead screw is rotatably arranged in the fixed groove, and a driven bevel gear is integrally arranged at one end of the lead screw.

[0010] Through the technical scheme, the fixed block is sequentially provided with the movable groove and the fixed groove from top to bottom, so as to facilitate the installation of the blocking block, the lead screw and the driven bevel gear, and the design between the lead screw and the driven bevel gear facilitates the cooperation with the driving bevel gear and the blocking block.

[0011] Further, a rotating disc is rotatably arranged on one side of the fixed groove, a driving bevel gear is fixedly arranged at one end of the rotating disc, one end of the driving bevel gear is meshingly connected with one end of the driven bevel gear, and a blocking block is threadedly sleeved at the outer end of the lead screw.

[0012] Through the technical scheme, the design of the rotating disc and the driving bevel gear facilitates the power supply for the rotation of the driven bevel gear, and the lead screw is threadedly connected with the blocking block, so as to facilitate the upward and downward movement of the blocking block.

[0013] Further, a first positioning rod is fixedly arranged at the middle of the bottom end of the mold base, second positioning rods are integrally arranged at the four corners of the bottom end of the mold base, second positioning holes are arranged at the four corners of the top end of the grinding machine base, and a first positioning hole is arranged at the middle of the top end of the grinding machine base.

[0014] Through the technical scheme, the insertion between the first positioning rod and the first positioning hole and the insertion between the second positioning rod and the second positioning hole can stably install the mold base on the surface of the grinding machine base.

[0015] Further, second sliding grooves are arranged at the two sides of the top end of the grinding machine base, and second sliding blocks are integrally arranged at the two sides of the bottom end of the mold base.

[0016] Through the technical scheme, the second sliding grooves are arranged at the two sides of the top end of the grinding machine base, and the second sliding blocks are integrally arranged at the two sides of the bottom end of the mold base, so as to limit the moving position of the mold base.

[0017] Further, two second limiting frames are provided with a group of fixing bolts on both sides of the contact end of the grinding machine base, and a baffle is integrally arranged on one side of the top end of the two second limiting frames.

[0018] According to the technical scheme, the two second limiting frames are provided with a group of fixing bolts on both sides of the contact end of the grinding machine base, so that the second limiting frames are conveniently installed and fixed, and the baffle is integrally arranged on one side of the top end of the two second limiting frames, so that the die holder can be prevented from being taken out of the second limiting frame.

[0019] Further, the height of the first roller is the same as that of the second roller after the two groups of electric control telescopic columns reach the stroke terminal, and the two groups of electric control telescopic columns work at the same frequency.

[0020] According to the technical scheme, the height of the first roller is the same as that of the second roller after the two groups of electric control telescopic columns reach the stroke terminal, so that the die holder can be conveniently pushed out and pushed in, and the two groups of electric control telescopic columns work at the same frequency, so that the two first limiting frames can be synchronously moved.

[0021] The utility model has the advantages of the following:

[0022] 1. The utility model discloses a quick die replacement device for centerless grinding machine, when the die holder needs to be taken down, the first limiting frame is moved upwards through the extension of the electric control telescopic column, the positions of the first roller and the second roller are flush, then the die holder can be taken out by pulling it outwards, when the die holder is installed, the two sliding blocks at the bottom end of the die holder are inserted into the top of the two second limiting frames at the same time, then the die holder is pushed to the end of the first sliding groove, finally the electric control telescopic column is retracted to the tail end, wherein the cooperation of the first roller, the second roller and the first sliding block can improve the moving speed of the die holder, so that the die group can be quickly replaced, and the design is front and rear sliding design, which is not affected by the side frame of the centerless grinding machine.

[0023] 2. The utility model discloses a quick die replacement device for centerless grinding machine, the driving bevel gear is rotated through the rotation of the rotating disc, the driving bevel gear and the driven bevel gear are meshed and driven, so that the blocking block can be moved up and down, the above-mentioned structure design can limit the position of the die holder after the die holder is pushed to the end of the first sliding groove, so that the die holder can not slide back, thereby affecting the insertion between the positioning hole and the positioning rod. DRAWINGS

[0024] Figure 1 The utility model discloses a quick die replacement device for centerless grinding machine;

[0025] Figure 2 The utility model discloses a quick die replacement device for centerless grinding machine;

[0026] Figure 3A half sectional view of the quick die replacement centerless grinding machine is provided in the utility model;

[0027] Figure 4 A side sectional view of the quick die replacement centerless grinding machine is provided in the utility model;

[0028] Figure 5 An isometric view of the die holder in the quick die replacement centerless grinding machine is provided in the utility model;

[0029] Figure 6 For Figure 3 An enlarged view of A in the middle.

[0030] Legend:

[0031] 1, grinding machine seat; 2, die holder; 3, first sliding groove; 4, electric control telescopic column; 5, first limiting frame; 6, first roller; 7, second limiting frame; 8, second roller; 9, baffle; 10, fixing bolt; 11, fixed block; 12, movable groove; 13, fixed groove; 14, screw rod; 15, driven bevel gear; 16, driving bevel gear; 17, turntable; 18, blocking block; 19, second sliding groove; 20, second sliding block; 21, first sliding block; 22, first positioning hole; 23, first positioning rod; 24, second positioning hole; 25, second positioning rod. Specific embodiments

[0032] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0033] Refer to Figures 1-6The utility model provides an embodiment: a quick replacement mould of centerless grinding machine, including grinding machine seat 1 and mould base 2, the both sides of mould base 2's bottom end integrally are provided with first sliding block 21, the both sides of grinding machine seat 1's top end are all set up with first sliding slot 3, the inside of two first sliding slots 3 all are inlaid with a group of electric control telescopic column 4, and the output of each group of electric control telescopic column 4 is installed with first limit frame 5, and the inside of two first limit frames 5 is rotatably provided with a group of first roller 6, and the one side of two first sliding slots 3 is installed with second limit frame 7, and the inside of two second limit frames 7 is rotatably provided with a group of second roller 8, when needing to take down mould base 2, make first limit frame 5 move upwards through the extension of electric control telescopic column 4, make the position of first roller 6 and second roller 8 flush, then pull mould base 2 outward and can take out mould base 2, when installing mould base 2, first insert the two sliding blocks of mould base 2 bottom end into the top of two second limit frames 7, then push mould base 2 to the end of first sliding slot 3, and finally electric control telescopic column 4 contracts to tail end, wherein the cooperation of first roller 6 and second roller 8 and first sliding block 21 can improve the moving speed of mould base 2, to quickly replace mould group, and the design is front and back sliding design, is not influenced by the side frame of centerless grinding machine.

[0034] The middle of one side of the grinding machine base 1 is integrally provided with a fixed block 11, the fixed block 11 is sequentially provided with a movable slot 12 and a fixed slot 13 from top to bottom, the inside of the fixed slot 13 is rotatably provided with a lead screw 14, one end of the lead screw 14 is integrally provided with a driven bevel gear 15, the fixed block 11 is sequentially provided with a movable slot 12 and a fixed slot 13 from top to bottom, so as to facilitate the installation of the blocking block 18, the lead screw 14 and the driven bevel gear 15, the design between the lead screw 14 and the driven bevel gear 15 facilitates cooperation with the driving bevel gear 16 and the blocking block 18, one side of the fixed slot 13 is rotatably provided with a turntable 17, one end of the turntable 17 is fixedly provided with a driving bevel gear 16, one end of the driving bevel gear 16 is meshingly connected with one end of the driven bevel gear 15, the outer end of the lead screw 14 is threadedly sleeved with the blocking block 18, the design of the turntable 17 and the driving bevel gear 16 facilitates the rotation of the driven bevel gear 15, and the lead screw 14 is threadedly connected with the blocking block 18, so as to facilitate the up and down movement of the blocking block 18, the bottom end of the mold base 2 is fixedly provided with a first positioning rod 23, the bottom end of the mold base 2 is integrally provided with a second positioning rod 25 at four corners, the top end of the grinding machine base 1 is provided with a second positioning hole 24 at four corners, and the top end of the grinding machine base 1 is provided with a first positioning hole 22 in the middle, the first positioning rod 23 and the first positioning hole 22 are inserted, and the second positioning rod 25 and the second positioning hole 24 are inserted, so that the mold base 2 can be stably installed on the surface of the grinding machine base 1, the top end of the grinding machine base 1 is provided with a second sliding groove 19 at both sides, the bottom end of the mold base 2 is integrally provided with a second sliding block 20 at both sides, the top end of the grinding machine base 1 is provided with a second sliding groove 19 at both sides, and the bottom end of the mold base 2 is integrally provided with a second sliding block 20 at both sides, so as to limit the moving position of the mold base 2, a group of fixed bolts 10 are installed at both sides of the contact end of the two second limiting frames 7, a baffle 9 is integrally arranged at one side of the top end of the two second limiting frames 7, a group of fixed bolts 10 are installed at both sides of the contact end of the two second limiting frames 7, so as to facilitate the installation and fixation of the second limiting frame 7, a baffle 9 is integrally arranged at one side of the top end of the two second limiting frames 7, so as to avoid the mold base 2 from coming out of the second limiting frame 7, the height of the first roller 6 is the same as that of the second roller 8 after the two groups of electric control telescopic columns 4 reach the terminal end of the stroke, the two groups of electric control telescopic columns 4 work at the same frequency, the height of the first roller 6 is the same as that of the second roller 8 after the two groups of electric control telescopic columns 4 reach the terminal end of the stroke, so as to facilitate the pushing out and pushing in of the mold base 2, and the two groups of electric control telescopic columns 4 work at the same frequency, so as to ensure that the two first limiting frames 5 move synchronously.

[0035] Working principle: when the mold base 2 needs to be removed, the first limiting frame 5 is moved upward by the extension of the electric control telescopic column 4, the positions of the first roller 6 and the second roller 8 are flush, then the mold base 2 is pulled out, when the mold base 2 is installed, the two sliding blocks at the bottom of the mold base 2 are inserted into the top of the two second limiting frames 7 at the same time, then the mold base 2 is pushed to the end of the first sliding groove 3, finally the electric control telescopic column 4 is retracted to the tail end, wherein the cooperation of the first roller 6 and the second roller 8 with the first sliding block 21 can improve the moving speed of the mold base 2, so that the mold group can be quickly replaced, and the design is front and rear sliding design, which is not affected by the side frame of the centerless grinding machine, the driving bevel gear 16 is rotated by rotating the rotating disc 17, the blocking block 18 can be controlled to move up and down through the meshing transmission between the driving bevel gear 16 and the driven bevel gear 15, the above structure design can limit the position of the mold base 2 after it is pushed to the end of the first sliding groove 3, so as to avoid the sliding back of the mold base 2, thereby affecting the insertion between the positioning hole and the positioning rod.

[0036] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be contained in the protection scope of the utility model.

Claims

1. A quick-change die for a centerless grinder, comprising a grinder base (1) and a die base (2), characterized in that: Both sides of the bottom end of the mold base (2) are integrally provided with a first sliding block (21), the top end of the grinding machine base (1) is provided with a first sliding groove (3) on both sides, the inside of the two first sliding grooves (3) is inlaid with a group of electric control telescopic columns (4), the output end of each group of electric control telescopic columns (4) is provided with a first limiting frame (5), the inner side of the two first limiting frames (5) is rotatably provided with a group of first rollers (6), one side of the two first sliding grooves (3) is provided with a second limiting frame (7), and the inner side of the two second limiting frames (7) is rotatably provided with a group of second rollers (8).

2. A quick change die for a centerless grinder according to claim 1 wherein: The middle of one side of the grinding machine base (1) is integrally provided with a fixed block (11), the fixed block (11) is sequentially provided with a movable groove (12) and a fixed groove (13) from top to bottom, the inside of the fixed groove (13) is rotatably provided with a lead screw (14), and one end of the lead screw (14) is integrally provided with a driven bevel gear (15).

3. A quick change die for a centerless grinder as defined in claim 2 wherein: The side of the fixed groove (13) is rotatably provided with a rotating disc (17), one end of the rotating disc (17) is fixedly provided with a driving bevel gear (16), one end of the driving bevel gear (16) is meshed and connected with one end of the driven bevel gear (15), and the outer end of the lead screw (14) is threadedly provided with a blocking block (18).

4. The quick change die for a centerless grinding machine of claim 1 wherein: The bottom end of the mold base (2) is fixedly provided with a first positioning rod (23) in the middle, the bottom end of the mold base (2) is integrally provided with a second positioning rod (25) at the four corners, the top end of the grinding machine base (1) is provided with a second positioning hole (24) at the four corners, and the top end of the grinding machine base (1) is provided with a first positioning hole (22) in the middle.

5. The quick change die for a centerless grinding machine of claim 1 wherein: The top end of the grinding machine base (1) is provided with a second sliding groove (19) on both sides, and the bottom end of the mold base (2) is integrally provided with a second sliding block (20) on both sides.

6. The quick change die for a centerless grinding machine of claim 1 wherein: The contact end of the two second limiting frames (7) is provided with a group of fixing bolts (10) on both sides, and the top end of the two second limiting frames (7) is integrally provided with a baffle (9) on one side.

7. The quick change die for a centerless grinding machine of claim 1 wherein: The height of the first roller (6) is the same as that of the second roller (8) after the two groups of electric control telescopic columns (4) reach the stroke terminal, and the two groups of electric control telescopic columns (4) work at the same frequency.

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