CN211966861U

CN211966861U - Workpiece positioning device for centerless grinding machine

Info

Publication number: CN211966861U
Application number: CN202020631050.0U
Authority: CN
Inventors: 娄一鸣; 王晖; 鲁刚
Original assignee: Hangzhou Auto Engine Parts Co ltd
Current assignee: Hangzhou Auto Engine Parts Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-11-20
Anticipated expiration: 2030-04-23

Abstract

The utility model relates to a work piece positioner for centerless grinder, including the organism, rotate respectively and connect emery wheel and the guide pulley that sets up in organism and interval and set up the layer board that is used for holding the material between emery wheel and guide pulley, layer board one end fixed connection is in the organism, the interval is equipped with the anticreep piece that prevents that the work piece from deviating from on the layer board, emery wheel and guide pulley are close to organism one side and install the guide of direction work piece, the guide is equipped with two, two along organism width direction interval the guide is close to layer board one side and all follows vertical direction projection in the work piece, anticreep covers between guide, emery wheel and the guide pulley. The utility model discloses have the effect that prevents to pop out in the work piece grinding process.

Description

Workpiece positioning device for centerless grinding machine

Technical Field

The utility model belongs to the technical field of centerless grinder's technique and specifically relates to a work piece positioner for centerless grinder is related to.

Background

When the rotating shaft is machined, the outer wall of the copper column needs to be ground by using a grinding machine. The centerless grinding machine is a grinding machine which does not need to adopt the axis positioning of a workpiece for grinding, and mainly comprises a grinding wheel, an adjusting wheel and a workpiece support, wherein the grinding wheel actually plays a role in grinding, and the adjusting wheel controls the rotation of the workpiece and controls the feed speed of the workpiece.

Chinese patent publication No. CN105150037A discloses a centerless grinder device, which comprises a grinding wheel, a guide wheel, a workpiece, a supporting plate, a lathe bed, a grinding wheel dresser, a guide wheel feeding mechanism, a grinding wheel feeding mechanism, a servo motor, a manipulator, and a control cabinet, wherein the workpiece is supported by the supporting plate, the grinding wheel and the guide wheel are respectively located at two sides of the supporting plate, the grinding wheel feeding mechanism is used for controlling the feeding of the grinding wheel, the guide wheel feeding mechanism is used for controlling the feeding of the guide wheel, the manipulator is located at one side of the grinding wheel and the guide wheel, and the feeding and discharging. By adopting the servo motor to drive the feeding device, the automatic finishing and automatic compensation of the centerless grinding machine are realized, and meanwhile, the CNC numerical control mechanical arm is adopted to automatically feed and discharge materials.

The above technique has the following disadvantages: the work piece is supported end to end and is fed along the length direction of the supporting plate, and after the work piece enters between the grinding wheel and the guide wheel which rotate at a high speed, the work piece is subjected to the pressure and the grinding force of the grinding wheel and the guide wheel and can be popped out from the upper part of the supporting plate or the discharging direction, so that potential safety hazards are caused to workers.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a prevent that work piece grinding in-process pops out a work piece positioner for centerless grinder that exists to prior art.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a work piece positioner for centerless grinder, includes the organism, rotates respectively and connects emery wheel and the guide pulley that sets up in organism and interval and set up the layer board that is used for holding the material between emery wheel and guide pulley, layer board one end fixed connection is in the organism, the interval is equipped with the anticreep spare that prevents that the work piece from deviating from on the layer board, emery wheel and guide pulley are close to organism one side and install the guide of direction work piece, the guide is equipped with two along organism width direction interval, two the guide is close to layer board one side and all follows vertical direction projection in the work piece, anticreep spare covers between guide, emery wheel and the guide pulley.

Through above-mentioned technical scheme, the work piece slides the feeding on the layer board, and the guide leads it, prevents that its transportation in-process perk from influencing the feeding. When the work piece gets into between high-speed rotatory emery wheel and the guide pulley, receive great grinding force, have the trend of bounce, but supported by the anticreep piece of upper end, consequently the work piece can get into smoothly between emery wheel and the guide pulley, and in the course of working, can not deviate from the layer board, has improved the processing security.

The present invention may be further configured in a preferred embodiment as: two there is the lead screw along its width direction threaded connection between the guide, the lead screw is the two-way lead screw that the drive guide is close to or keeps away from simultaneously, two guide all follow organism width direction sliding connection in organism.

Through above-mentioned technical scheme, before the work piece got into between emery wheel and the guide pulley, because the work piece can receive great extrusion force during the feeding, probably there is the feeding to hinder, leads to arranging the work piece position slope of waiting for the feeding at the back and blocks, changes the position that the work piece can be adjusted to the interval between two guides. In addition, when the amount of cutting required by the workpiece is changed, the distance between the two guide parts can be adjusted to better adapt to the size of the workpiece, and a better guide effect is achieved.

The present invention may be further configured in a preferred embodiment as: two the organism one end is connected to the guide all fixedly is equipped with T shape slider, organism one side is seted up the spout that the cross-section is T shape along its width direction, two the slider all inlays and establishes in the spout, and along its length direction sliding connection in spout.

Through above-mentioned technical scheme, when the guide removed, the slider slided in the spout, provided the guide effect for the slip process is more steady, because the slider is T shape slider, slides more stably, and the slider is spacing in the spout, can not deviate from.

The present invention may be further configured in a preferred embodiment as: the guide piece is including the installation piece of connecting the organism and setting up the deflector that is close to layer board one side at the installation piece, the arc face of work piece is for deriving to the deflector lower extreme, there is the clearance between deflector lower extreme and the work piece.

Through above-mentioned technical scheme, if the deflector lower extreme is the plane, when the work piece bounced, formed a line that extends along deflector length direction with the contact of work piece, when the deflector lower extreme was the arcwall face, because its lower extreme was higher with the laminating degree on work piece surface, when the work piece bounced, it was bigger with the area of deflector contact, spacing effect was better.

The present invention may be further configured in a preferred embodiment as: and one side of the guide plate, which is far away from the mounting block, is provided with an inner hexagon bolt in a penetrating way along the thickness direction of the guide plate, and the inner hexagon bolt is in threaded connection with the mounting block.

Through above-mentioned technical scheme, in the feeding process, because the work piece atress is unstable, often have the trend of bounceing, the deflector is many places atress can warp. Unscrew hexagon socket head cap screw and can change the deflector, because the interval is less between two deflectors, it is comparatively inconvenient to change the deflector, uses hexagon socket head cap screw, can be more convenient than general bolt.

The present invention may be further configured in a preferred embodiment as: the distance between one side of the guide plate close to the grinding wheel and the guide wheel and the distance between the grinding wheel and the guide wheel are smaller than the length of one workpiece.

Through the technical scheme, when one end of the workpiece enters between the grinding wheel and the guide wheel which rotate at a high speed, the end is subjected to a large grinding force, the two ends of the workpiece are unbalanced in stress, and the workpiece has a tendency of bouncing or inclining. After the guide plate extends to a side close to the grinding wheel and the guide wheel, the guide plate can still limit and guide the workpiece after one end of the workpiece is fed.

The present invention may be further configured in a preferred embodiment as: the anti-disengaging piece is including the anti-disengaging pole that is located the layer board top and fixed connection in the connecting rod of anti-disengaging pole lateral wall, the anti-disengaging pole is close to the arcwall face of layer board one side lateral wall formation indent.

Through above-mentioned technical scheme, set anticreep pole lower extreme into the arcwall face of indent, it is higher with the laminating degree on workpiece surface. When the workpiece is stressed and bounced, the abutting area of the workpiece and the anti-falling rod is larger, and the limiting effect is better.

The present invention may be further configured in a preferred embodiment as: the organism is close to the fixed pressure cylinder that is equipped with in anticreep piece one side for the lifting anticreep piece, the piston rod fixed connection of pressure cylinder tip is kept away from anticreep pole one end in the connecting rod.

Through the technical scheme, the workpiece is possibly stressed to deviate in the grinding process, and the processing of other workpieces is influenced. The pressure cylinder is started, the pressure cylinder drives the connecting rod and the anti-falling rod to be lifted to a state convenient for observing the workpiece, timely adjustment is facilitated, and the accuracy of workpiece machining is improved.

To sum up, the utility model discloses a following at least one useful technological effect:

1. in the feeding process, the guide piece guides the workpiece in a feeding mode, the anti-falling piece and the guide piece are arranged, the workpiece can be prevented from being popped out, and safety is improved.

2. When the amount of cutting required by the workpiece is changed, the distance between the two guide parts can be adjusted to better adapt to the size of the workpiece, and a better guide effect is achieved.

3. The arc face of indent is set to anticreep pole lower extreme, and is higher with the laminating degree on workpiece surface, and spacing effect is better.

Drawings

FIG. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic view showing the structure of the guide and the retaining member after detachment in the present embodiment;

fig. 3 is a sectional view of the present embodiment.

In the figure, 10, the body; 11. a grinding wheel; 12. a guide wheel; 13. a support plate; 20. a guide member; 21. mounting blocks; 22. a guide plate; 23. a slider; 24. a chute; 25. a screw rod; 26. a handle; 261. fixing the rod; 262. a force application ring; 2. 7, a step groove; 28. a hexagon socket head cap screw; 30. a drop-off prevention member; 31. an anti-drop rod; 32. a connecting rod; 33. a pressure cylinder.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, for the utility model discloses a workpiece positioning device for centerless grinding machine, including organism 10, rotate respectively and connect in emery wheel 11 and the guide pulley 12 of organism 10, still including setting up the layer board 13 between emery wheel 11 and guide pulley 12, layer board 13 fixed connection is in organism 10, and to keeping away from organism 10 one side horizontal extension. The machine body 10 is provided with a guide 20 for guiding the workpiece on the side close to the grinding wheel 11 and the guide wheel 12, the machine body 10 is also provided with a retaining part 30 for preventing the workpiece from being separated upwards, and gaps are reserved between the guide 20 and the retaining part 30 and the workpiece.

The work piece is derived from organism 10 one side to on layer board 13, and guide pulley 12 rotates the in-process, drives the work piece and conveys to the ejection of compact direction, and each work piece is supported end to end and is worn to send between emery wheel 11 and the guide pulley 12. The guide member 20 guides the feeding of the workpiece, and when the workpiece is bounced upwards by the grinding force, the workpiece is blocked by the anti-falling member 30, returns to the initial position, and continues to grind and discharge until the machining is finished.

Specifically, referring to fig. 2 and 3, two guide members 20 are provided along the width direction of the machine body 10, and the two guide members 20 are spaced apart from each other. Guide 20 is including the installation piece 21 of connecting organism 10 and setting up at installation piece 21 and be close to the deflector 22 of layer board 13 one side, and two installation pieces 21 are close to organism 10 one side and all are equipped with slider 23, and slider 23 is the T-shaped piece, and organism 10 is close to guide 20 one side and has seted up spout 24, and spout 24 is seted up along organism 10 width direction, and two sliders 23 are inlayed and are established in spout 24, and slider 23 is in spout 24 length direction sliding connection in spout 24.

A screw rod 25 penetrates through the two mounting blocks 21 along the width direction of the mounting blocks, the screw rod 25 is a bidirectional screw rod 25 which drives the two mounting blocks 21 to be close to or far away simultaneously, the two mounting blocks 21 are arranged along the central symmetry of the screw rod 25, and the screw rod 25 is in threaded connection with the two mounting blocks 21. The machine body 10 is fixedly provided with two rod pieces close to one side of the screw rod 25 at intervals, the two rod pieces are perpendicular to the side wall of the machine body, and the screw rod 25 penetrates through the two rod pieces and is respectively and rotatably connected to the rod pieces. The fixed handle 26 that is equipped with of lead screw 25 one end, handle 26 include fixed link 261 and the application of force ring 262 in lead screw 25, and application of force ring 262 is coaxial with lead screw 25, and fixed link 261 evenly is equipped with threely along lead screw 25 circumference, and lead screw 25 one end fixed connection in application of force ring 262 inner wall is kept away from to fixed link 261.

The lower end of the guide plate 22 is convenient for guiding out the arc-shaped surface of the workpiece, and one end of the guide plate 22 close to the grinding wheel 11 and the guide wheel 12 is arranged at intervals with the end surfaces of the grinding wheel 11 and the guide wheel 12. One side of the guide plate 22, which is far away from the mounting block 21, is provided with a step groove 27 along the thickness direction thereof, and the step groove 27 is communicated with the side wall of the upper end of the guide plate 22. The inside of the stepped groove 27 is provided with hexagon socket head cap bolts 28 along the thickness direction of the guide plate 22, the hexagon socket head cap bolts 28 penetrate through the guide plate 22 and then are connected to the mounting block 21 in a threaded manner, and two hexagon socket head cap bolts 28 are arranged at intervals along the length direction of the guide plate 22.

When a workpiece is clamped in the guide plate 22 in the feeding process, and tangential force is applied to the handle 26, the handle 26 rotates to drive the screw rod 25 to rotate, because the threads on two sides of the surface of the screw rod 25 are opposite in trend, the two mounting blocks 21 are driven to move in opposite directions during rotation, the sliding block 23 moves in the sliding groove 24 to provide a guiding effect for the sliding block, the interval between the two mounting blocks 21 is increased, and the state of the workpiece is convenient to adjust.

In the feeding process, because the workpiece is stressed unstably, the workpiece tends to bounce, and a plurality of positions of the guide plate 22 are stressed and deformed after long-term use. When the guide plate 22 is replaced, the hexagon socket head cap screws 28 are sequentially unscrewed and removed, and the guide plate 22 can be replaced.

Specifically, referring to fig. 3, the anti-separation member 30 includes an anti-separation rod 31 disposed above the supporting plate 13 and a connecting rod 32 fixedly connected to a side wall of the anti-separation rod 31, a gap exists between the anti-separation rod 31 and the workpiece, the anti-separation rod 31 is projected on the supporting plate 13 along a vertical direction, and the anti-separation rod 31 is a square rod, and a side wall of the square rod, which is close to the supporting plate 13, forms an inward-concave arc-shaped surface. The side wall of the machine body 10 is fixedly provided with a pressure cylinder 33, the pressure cylinder 33 can be an air cylinder, a piston rod at the end of the pressure cylinder 33 is fixedly connected to the connecting rod 32, and the connecting rod 32 is an L-shaped rod.

During the grinding process of the workpiece, the workpiece may be stressed and shifted, and the machining of other workpieces is affected after the workpiece is clamped. At this time, the pressure cylinder 33 is activated, and the pressure cylinder 33 drives the connecting rod 32 and the anti-drop rod 31 to be lifted until the position of the workpiece is adjusted. After the adjustment is completed, the pressure cylinder 33 drives the connecting rod 32 and the anti-drop rod 31 to return to the initial position.

The implementation principle of the embodiment is as follows: before grinding, a workpiece is led out from one side of the machine body 10 to the supporting plate 13, the guide wheel 12 drives the workpiece to be conveyed towards the discharging direction in the rotating process, and the workpieces are butted end to end between the grinding wheel 11 and the guide wheel 12 and are conveyed. The guide piece 20 and the anti-falling piece 30 limit the workpiece and prevent the workpiece from falling off until the machining is finished.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a work piece positioner for centerless grinder, includes organism (10), respectively rotate to be connected in emery wheel (11) and guide pulley (12) that organism (10) and interval set up and set up between emery wheel (11) and guide pulley (12) and be used for holding layer board (13) of material, layer board (13) one end fixed connection in organism (10), its characterized in that: the anti-falling device is characterized in that anti-falling pieces (30) for preventing the workpiece from falling off are arranged on the supporting plate (13) at intervals, two guide pieces (20) for guiding the workpiece are arranged on one sides, close to the machine body (10), of the grinding wheel (11) and the guide wheel (12), the guide pieces (20) are arranged at intervals along the width direction of the machine body (10), one sides, close to the supporting plate (13), of the two guide pieces (20) are projected in the workpiece along the vertical direction, and the anti-falling pieces (30) cover the positions among the guide pieces (20), the grinding wheel (11) and the guide wheel (12).

2. A workpiece positioning device for a centerless grinding machine as defined in claim 1, wherein: two there is lead screw (25) between guide (20) along its width direction threaded connection, lead screw (25) are two-way lead screw (25) that drive guide (20) are close to or keep away from simultaneously, two guide (20) all along organism (10) width direction sliding connection in organism (10).

3. A workpiece positioning device for a centerless grinding machine as defined in claim 2, wherein: two organism (10) one end is connected in guide (20) all fixed T shape slider (23) that is equipped with, organism (10) one side is seted up spout (24) that the cross-section is the T shape along its width direction, two slider (23) all inlay and establish in spout (24), and along its length direction sliding connection in spout (24).

4. A workpiece positioning device for a centerless grinding machine as defined in claim 1, wherein: the guide piece (20) comprises an installation block (21) connected with the machine body (10) and a guide plate (22) arranged on one side, close to the supporting plate (13), of the installation block (21), the lower end of the guide plate (22) is an arc-shaped surface facilitating leading out of a workpiece, and a gap exists between the lower end of the guide plate (22) and the workpiece.

5. The workpiece positioning device for the centerless grinding machine as set forth in claim 4, wherein: and one side, far away from the mounting block (21), of the guide plate (22) penetrates through an inner hexagonal bolt (28) along the thickness direction of the guide plate, and the inner hexagonal bolt (28) is in threaded connection with the mounting block (21).

6. The workpiece positioning device for the centerless grinding machine as set forth in claim 4, wherein: the distance between one side of the guide plate (22), which is close to the grinding wheel (11) and the guide wheel (12), and the side of the guide plate (11) and the guide wheel (12) is smaller than the length of one workpiece.

7. A workpiece positioning device for a centerless grinding machine as defined in claim 1, wherein: anticreep piece (30) are including anticreep pole (31) and connecting rod (32) of fixed connection in anticreep pole (31) lateral wall that are located layer board (13) top, anticreep pole (31) are close to layer board (13) one side lateral wall and form the arcwall face of indent.

8. A workpiece positioning device for a centerless grinding machine as defined in claim 1, wherein: organism (10) are close to anticreep piece (30) one side fixed pressure cylinder (33) that are used for lifting anticreep piece (30), the piston rod fixed connection of pressure cylinder (33) tip is kept away from anticreep pole (31) one end in connecting rod (32).