CN213164869U - High-precision quick positioning mechanism of rotary workpiece grinding machine - Google Patents

Abstract

The utility model relates to a quick positioning mechanism of gyration work piece grinding machine high accuracy is applied to cylindrical grinder technical field, and it is including setting up the rolling disc at main epaxial to and slide the tailstock of setting on the bed body, the rolling disc is equipped with first thimble towards the one end of tailstock, the tailstock is equipped with the second thimble with the position that first thimble corresponds, the one end that the rolling disc is close to the tailstock is equipped with the setting element that is used for fixed work piece. This application is fixed a position the work piece through the setting element, can restrict the rotation of work piece along circumferencial direction to increase the stability of work piece in grinding process, in order to reduce the possibility that the work piece appears skidding, improved the grinding quality to workpiece surface.

Description

High-precision quick positioning mechanism of rotary workpiece grinding machine

Technical Field

The application relates to the technical field of cylindrical grinding machines, in particular to a high-precision quick positioning mechanism of a rotary workpiece grinding machine.

Background

The cylindrical grinding machine is used for processing the outer surface and the shaft shoulder end surface of a cylindrical, conical or other-shaped plain line of a workpiece. The main parts of the machine are cast iron bed, bench, headstock, tailstock, grinding carriage (head) for supporting and driving workpiece, transverse feeding mechanism for controlling the size of the workpiece, electric appliance and hydraulic device for controlling the movement of the moving parts of the machine.

Chinese patent No. CN203330884U discloses an automatic feeding device for machining of a cylindrical grinding machine, which comprises a grinding machine, wherein the grinding machine is provided with a thimble for tightly pushing a workpiece, a grinding wheel mechanism for correcting the outer circle of the workpiece, a measuring device for measuring the outer circle of the workpiece and a numerical control system; the measuring device comprises an air cylinder, a measuring device body and a measuring head, wherein the air cylinder is fixedly connected with the grinding machine, the measuring device body is fixedly connected with an air cylinder rod head, and the measuring head is connected with the measuring device body; the grinding wheel mechanism and the measuring device are connected with a numerical control system which sets a processing range and processing precision and displays a measuring result.

In view of the above-mentioned related technologies, the inventor believes that, in the process of processing a workpiece, the workpiece is only tightly pressed by the ejector pin, and the workpiece is likely to slip during grinding, so that the workpiece is unstable and the grinding precision is not high.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the work piece appears skidding easily among the grinding process, this application provides a gyration work piece grinding machine high accuracy quick positioning mechanism.

The application provides a quick positioning mechanism of rotary workpiece grinding machine high accuracy adopts following technical scheme:

the utility model provides a quick positioning mechanism of gyration work piece lathe high accuracy, is including setting up the rolling disc on the main shaft to and the tailstock of slip setting on the bed body, the rolling disc is equipped with first thimble towards the one end of tailstock, the tailstock is equipped with the second thimble with the position that first thimble corresponds, the one end that the rolling disc is close to the tailstock is equipped with the setting element that is used for fixed work piece.

Through adopting above-mentioned technical scheme, the operator is before the grinding work piece, the operator all sets up a fixed slot at the both ends of work piece earlier, two fixed slots are on same axis, then the operator sets up a drive groove in the one end that the work piece is close to first thimble, the operator is tight in the fixed slot with first thimble top this moment, support the second thimble tightly in another fixed slot, the operator supports the setting element tightly in driving the groove simultaneously, make the setting element fix a position the work piece through driving the groove, thereby restrict the work piece and rotate along the circumferencial direction, in order to reach the effect of fixed work piece, thereby increase the stability of work piece at the grinding in-process, and then reduce the possibility that the work piece appears skidding, in order to improve the grinding quality to workpiece surface.

Optionally, the locating piece includes the reference column of setting on the rolling disc, the one end that the rolling disc was kept away from to the reference column is equipped with the locating plate, the one end that the reference column was kept away from to the locating plate extends to the one side that is close to first thimble, the one end that the reference column was kept away from to the locating plate is equipped with the locating pin that is used for supporting tight work piece.

Through adopting above-mentioned technical scheme, when the operator tightly pushed up first thimble and second thimble on the work piece simultaneously, the locating pin was pegged graft and is driven the groove, and the locating pin is fixed a position the work piece through driving the groove this moment to the locating pin can restrict the rotation of work piece along the circumferencial direction, and then reduces the possibility that the work piece appears skidding, with the grinding precision of promotion to the work piece.

Optionally, the positioning column penetrates through the positioning plate, and the positioning plate is in threaded connection with the positioning column.

Through adopting above-mentioned technical scheme, when the operator need adjust the distance between locating plate and the work piece, the operator rotates the locating plate for the locating plate removes along the axis direction of reference column, thereby realizes adjusting the purpose of locating plate, and then the operator of being convenient for supports the locating pin tightly to the work piece, further promotes the stability of work piece in the course of working.

Optionally, the locating plate has seted up waist shape hole along length direction, the locating pin wears to locate in the waist shape hole, the locating pin has a tight piece of clamp at the equal threaded connection of locating plate along length direction's both sides.

Through adopting above-mentioned technical scheme, the operator can promote the locating pin and slide along the length direction in waist shape hole, when the locating pin aligns with the drive groove on the work piece, the operator promotes the locating pin and supports tightly to driving the inslot, in order to reach the effect of fine setting locating pin, and then be convenient for the operator to support the locating pin tightly at the drive inslot, the operator fixes the tight piece of clamp of keeping away from the work piece this moment, then rotate another and press from both sides tight piece, make two press from both sides tight piece and support tightly on the locating plate simultaneously, thereby realize the purpose of fixed locating pin, and then be convenient for the operator to adjust the position of locating pin, so that the operator fixes a position different.

Optionally, an installation groove is formed in one end of the rotating disc close to the tailstock, the first thimble is inserted into the installation groove, and two abutting pieces for fixing the first thimble are symmetrically arranged in the installation groove along the circumferential direction; the abutting piece comprises an abutting block for abutting against the first ejector pin, the rotating disc is provided with a limiting groove on the side wall of the mounting groove along the axial direction, the abutting block is arranged in the limiting groove in a sliding mode, the rotating disc is provided with a sliding groove on one side, away from the first ejector pin, of the limiting groove, and the sliding groove is communicated with the limiting groove; the sliding groove is internally provided with a sliding block in a sliding connection mode, the limiting groove is provided with a connecting rod between the sliding block and the abutting block, one end of the connecting rod in the length direction is hinged to the abutting block, the other end of the connecting rod inclines to one side far away from the bottom wall of the mounting groove and is hinged to the sliding block, and one end, close to the tailstock, of the rotating disc is in threaded connection with a countersunk bolt used for pushing the sliding block.

Through adopting above-mentioned technical scheme, the operator is at the in-process of the first thimble of installation, the operator pegs graft the mounting groove with the afterbody of first thimble in, the operator rotates the countersunk head bolt after that, make the countersunk head bolt promote the slider and be close to the diapire of mounting groove, the slider promotes through the connecting rod this moment and supports the piece and slide in the spacing inslot, and make to support tight piece and support tightly on first thimble, in order to reach the effect of fixed thimble, thereby be convenient for the operator fix first thimble fast convenient, and then increase the stability of first thimble, the operator of being convenient for simultaneously changes first thimble.

Optionally, a guide groove is formed in the end surface of the limiting groove close to the bottom wall of the mounting groove, a guide block is connected in the guide groove in a sliding manner, a spring is arranged on one side of the guide groove close to the mounting groove, one end of the spring is fixed on the sliding block, and the other end of the spring is fixed on the end surface of the guide groove; when the abutting block abuts against the first ejector pin, the spring is in a partially compressed state.

Through adopting above-mentioned technical scheme, support tight piece when being close to first thimble, support tight piece and drive the guide block and slide in the guide way, the guide block compresses the spring simultaneously, the spring has elastic restoring force by the compression, when the operator need take out first thimble, operator's antiport countersunk head bolt, the spring is under the effect of elastic restoring force this moment, the spring promotes the guide block and drives and support tight piece and remove to the one side of keeping away from first thimble, thereby support tight piece and realized automatic re-setting's purpose, and then the operator of being convenient for fixes first thimble once more.

Optionally, a positioning groove is formed in one end, close to the bottom wall of the mounting groove, of the first thimble, a positioning rod is connected in the positioning groove in a sliding mode, and one end, far away from the first thimble, of the positioning rod is fixed to the bottom wall of the mounting groove.

Through adopting above-mentioned technical scheme, when the operator pegged graft the mounting groove with first thimble in, the operator pegged graft the locating lever in the constant head tank, the operator promoted first thimble this moment and is close to the mounting groove diapire, the guide block can restrict the moving direction of first thimble through the guide way, make first thimble be linear motion, thereby the locating lever has played the effect of direction to first thimble, and then the operator of being convenient for fixes a position first thimble fast conveniently, in order to increase the location precision of first thimble.

Optionally, one side of the first thimble, which is close to the bottom wall of the mounting groove, is provided with a stop block, and when the abutting block abuts against the first thimble, the stop block is located between the abutting block and the bottom wall of the mounting groove, and the stop block abuts against and abuts against the abutting block.

Through adopting above-mentioned technical scheme, when the dog supports tightly on supporting tight piece, support tight piece and can carry on spacingly through the dog to first thimble to reduce the condition emergence that first thimble breaks away from in the mounting groove, and then increase the stability of first thimble.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the workpiece is positioned by the positioning piece, so that the rotation of the workpiece along the circumferential direction can be limited, the stability of the workpiece in the grinding process is improved, the possibility of slipping of the workpiece is reduced, and the grinding quality of the surface of the workpiece is improved;

2. the purpose of fixing the positioning pin can be achieved through the clamping block, and an operator can conveniently adjust the position of the positioning pin, so that the operator can conveniently position workpieces with different sizes;

3. fix first thimble through supporting the piece to the operator is fixed first thimble fast convenient, can increase the stability of first thimble simultaneously, and the operator of being convenient for changes first thimble.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic structural diagram for embodying a rotating disk according to an embodiment of the present application.

Fig. 3 is a schematic structural view for embodying the urging member according to the embodiment of the present application.

Description of reference numerals: 1. a bed body; 11. rotating the disc; 111. mounting grooves; 112. a limiting groove; 113. a chute; 114. a guide groove; 115. a spring; 12. a tailstock; 13. a first thimble; 131. positioning a groove; 132. a stopper; 14. a second thimble; 15. positioning a rod; 2. an abutting piece; 21. a propping block; 211. a guide block; 22. a slider; 23. a connecting rod; 24. a countersunk bolt; 3. a positioning member; 31. a positioning column; 32. positioning a plate; 321. a waist-shaped hole; 33. positioning pins; 34. a clamping block; 4. and (5) a workpiece.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses quick positioning mechanism of gyration work piece milling machine high accuracy. Referring to fig. 1 and 2, the positioning mechanism includes a rotating disc 11 disposed on the spindle of the bed 1, and a tailstock 12 slidably disposed on the bed 1. The rotating disc 11 is provided with a mounting groove 111 at one end deviating from the main shaft, and the mounting groove 111 and the main shaft are located on the same axis. A first thimble 13 is inserted into the mounting groove 111, and two abutting pieces 2 are symmetrically arranged on the rotating disc 11 along the circumferential direction in the mounting groove 111. And the rotating disc 11 is provided with a positioning element 3 at the end facing away from the spindle. The tailstock 12 is provided with a second thimble 14 at a position corresponding to the first thimble 13, and the second thimble 14 is fixed on the tailstock 12.

Referring to fig. 1 and 2, before an operator grinds a workpiece 4, the operator drills two fixing grooves at two ends of the workpiece 4 respectively, a connecting line of central points of the two fixing grooves is located on the same straight line with a central line of the workpiece 4, and simultaneously, the operator drills a driving groove at one end of the workpiece 4. The operator is at the in-process of fixed work piece 4, and the operator inserts earlier the afterbody of first thimble 13 to mounting groove 111 in, and the operator fixes first thimble 13 in mounting groove 111 through two piece 2 that support afterwards to reach the effect of the first thimble 13 of fastening, and then increased first thimble 13's stability.

Referring to fig. 1 and 2, the operator pushes the first thimble 13 tightly against the fixing groove of the workpiece 4, and pushes the positioning member 3 tightly against the driving groove. Finally, the operator pushes the tailstock 12 to approach the workpiece 4, so that the second thimble 14 abuts against the other fixing groove, thereby achieving the purpose of clamping the workpiece 4. At this time, the workpiece 4 is ground, and the positioning member 3 can position the workpiece 4 to limit the rotation of the workpiece 4 in the circumferential direction, so that the stability of the workpiece 4 in the grinding process is increased, the possibility of slipping between the workpiece 4 and the first ejector pin 13 is reduced, and the quality of grinding the surface of the workpiece 4 is improved.

Referring to fig. 2 and 3, a positioning rod 15 is fixedly connected to the bottom wall of the mounting groove 111 of the rotating disc 11, a positioning groove 131 is formed at one end of the first thimble 13 close to the bottom wall of the mounting groove 111, and the size of the positioning groove 131 is the same as that of the positioning rod 15. The center line of positioning rod 15 in the longitudinal direction is aligned with the axis of the main shaft, and the center line of positioning groove 131 in the longitudinal direction and the center line of first needle 13 in the longitudinal direction are aligned. When the operator inserts the first thimble 13, the operator inserts the positioning rod 15 into the positioning slot 131 and pushes the first thimble 13 to approach the bottom wall of the mounting groove 111. At this time, the positioning rod 15 limits the moving direction of the first thimble 13 through the positioning slot 131, so that an operator can quickly and conveniently position the first thimble 13, and the possibility of the first thimble 13 deviating is reduced, so that the first thimble 13 is fixed.

Referring to fig. 2 and 3, the rotating disc 11 is provided with a limit groove 112 on a side wall of the mounting groove 111, and the rotating disc 11 is provided with a sliding groove 113 on a side of the limit groove 112 away from the positioning rod 15, the sliding groove 113 is communicated with the positioning groove 131, and both the limit groove 112 and the sliding groove 113 are axially arranged along the mounting groove 111. The abutting piece 2 comprises an abutting block 21 which is arranged in the limiting groove 112 in a sliding mode, and a sliding block 22 which is connected in the sliding groove 113 in a sliding mode. One side that the piece 21 that supports is close to slider 22 articulates there is connecting rod 23, and the one end that the piece 21 was kept away from to the connecting rod 23 inclines to the one side of keeping away from the mounting groove 111 diapire, and the one end that the piece 21 was kept away from to the connecting rod 23 articulates in the middle part of slider 22. Meanwhile, a sunk groove is formed in one end, away from the main shaft, of the rotating disc 11, a sunk bolt 24 in threaded connection with the rotating disc 11 penetrates through the sunk groove, and one end, away from the sunk groove, of the sunk bolt 24 extends into the sliding groove 113 and abuts against the sliding block 22.

Referring to fig. 2 and 3, after the operator positions the first thimble 13, the operator simultaneously rotates the countersunk bolts 24 of the two abutment members 2, so that the countersunk bolts 24 push the slider 22 to approach the bottom wall of the mounting groove 111. At this time, the sliding block 22 pushes the abutting block 21 to approach the first thimble 13 through the connecting rod 23 until the abutting block 21 in the two abutting pieces 2 abuts against the first thimble 13 at the same time, so as to fix the first thimble 13, and further, an operator can fix the first thimble 13 quickly and conveniently, thereby increasing the stability of the first thimble 13.

Referring to fig. 3, the limiting groove 112 is provided with a guide groove 114 along a vertical direction on an end surface close to the bottom wall of the mounting groove 111, the abutting block 21 is provided with a guide block 211 at an end close to the sliding groove 113 and corresponding to the guide groove 114, and the guide block 211 is slidably disposed in the guide groove 114. And a spring 115 is fixedly coupled to the guide groove 114 at an end surface close to the mounting groove 111, and the other end of the spring 115 is fixed to the guide block 211. When the abutting block 21 approaches the first thimble 13, the abutting block 21 drives the guide block 211 to compress the spring 115. When the operator needs to replace the first thimble 13, the operator rotates the countersunk head bolt 24 in the reverse direction, and at this time, the spring 115 pushes the abutting block 21 to be reset quickly through the guide block 211, so that the operator can clamp the first thimble 13 for the second time.

Referring to fig. 3, the first thimble 13 is provided with a stopper 132 between the abutting block 21 and the bottom wall of the mounting groove 111, and the stopper 132 is fixed on the first thimble 13. When the abutting block 21 abuts against the first thimble 13, the stopper 132 abuts against the end surface of the abutting block 21 close to the bottom wall of the mounting groove 111. At this time, in the rotating process of the rotating disc 11, the abutting block 21 can limit the first thimble 13 by the stopper 132, so as to further fix the first thimble 13, and further reduce the occurrence of the first thimble 13 breaking away from the mounting groove 111.

Referring to fig. 1 and 2, the positioning member 3 includes a positioning post 31 fixed on the rotary disk 11, and the positioning post 31 is not coaxial with the mounting groove 111. One end of the positioning column 31, which is far away from the rotating disc 11, is connected with a positioning plate 32 through a thread, the positioning plate 32 is arranged along the radial direction of the rotating disc 11, and one end of the positioning plate 32, which is far away from the positioning column 31, extends towards the first thimble 13. The positioning plate 32 is provided with a waist-shaped hole 321 along the length direction, and the positioning pin 33 is slidably connected in the waist-shaped hole 321. One end of the positioning pin 33 near the workpiece 4 is conical, and a clamping block 34 is screwed to both ends of the positioning pin 33 in the longitudinal direction of the positioning plate 32.

Referring to fig. 1 and 2, during the process of fixing the workpiece 4, the operator first rotates the positioning plate 32 to adjust the distance between the positioning plate 32 and the workpiece 4. Then, the operator pushes the positioning pin 33 to slide along the long direction of the waist-shaped hole 321, until the positioning pin 33 is aligned with the driving slot, the operator pushes the positioning pin 33 to abut against the driving slot, and the positioning pin 33 abuts against the driving slot. Then the operator fixes the clamping block 34 far away from the workpiece 4, and then rotates the other clamping block 34 until the two clamping blocks 34 abut against the positioning plate 32 at the same time, the two clamping blocks 34 achieve the effect of fixing the positioning pin 33, so that the purpose of fixing the workpiece 4 is realized, and the operator can fix the workpiece 4 quickly and conveniently, so that the stability of the workpiece 4 in the grinding process is improved.

The implementation principle of the embodiment of the application is as follows: an operator firstly inserts the first thimble 13 into the mounting groove 111, and then the operator rotates the countersunk head bolt 24, so that the countersunk head bolt 24 pushes the slider 22 to move to a side close to the bottom wall of the mounting groove 111. At this time, the slide block 22 pushes the abutting block 21 to abut against the first thimble 13 through the connecting rod 23, so as to fix the first thimble 13. Then, an operator abuts the first thimble 13 and the second thimble 14 against the workpiece 4, then the operator rotates the positioning plate 32 to adjust the distance between the positioning plate 32 and the workpiece 4, then the operator pushes the positioning pin 33 to slide along the length direction of the waist-shaped hole 321 until the positioning pin 33 is aligned with the driving groove, the operator operates to push the positioning pin 33 to abut against the driving groove, and finally the operator fastens the positioning pin 33 through the two clamping blocks 34, so that the positioning pin 33 achieves the purpose of positioning the workpiece 4.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a quick positioning mechanism of gyration work piece lathe high accuracy, is including setting up rolling disc (11) on the main shaft to and tailstock (12) of slip setting on the bed body (1), its characterized in that: the workpiece fixing device is characterized in that one end, facing the tailstock (12), of the rotating disc (11) is provided with a first ejector pin (13), a second ejector pin (14) is arranged at the position, corresponding to the first ejector pin (13), of the tailstock (12), and a positioning piece (3) used for fixing a workpiece (4) is arranged at one end, close to the tailstock (12), of the rotating disc (11).

2. The high-precision quick positioning mechanism of the rotary workpiece grinding machine as claimed in claim 1, characterized in that: locating piece (3) is including setting up reference column (31) on rolling disc (11), the one end that rolling disc (11) were kept away from in reference column (31) is equipped with locating plate (32), the one end that locating column (31) were kept away from in locating plate (32) extends to the one side that is close to first thimble (13), the one end that locating column (31) were kept away from in locating plate (32) is equipped with locating pin (33) that are used for supporting tight work piece (4).

3. The high-precision quick positioning mechanism of the rotary workpiece grinding machine as claimed in claim 2, characterized in that: the positioning column (31) penetrates through the positioning plate (32), and the positioning plate (32) is in threaded connection with the positioning column (31).

4. The high-precision quick positioning mechanism of the rotary workpiece grinding machine as claimed in claim 2, characterized in that: waist shape hole (321) have been seted up along length direction in locating plate (32), waist shape hole (321) is worn to locate in locating pin (33), locating pin (33) have one to press from both sides tight piece (34) at locating plate (32) along length direction's both sides equal threaded connection.

5. The high-precision quick positioning mechanism of the rotary workpiece grinding machine as claimed in claim 1, characterized in that: an installation groove (111) is formed in one end, close to the tailstock (12), of the rotating disc (11), the first ejector pin (13) is inserted into the installation groove (111), and two abutting pieces (2) used for fixing the first ejector pin (13) are symmetrically arranged in the installation groove (111) along the peripheral direction;

the abutting piece (2) comprises an abutting block (21) for abutting against the first ejector pin (13), a limiting groove (112) is formed in the axial side wall of the mounting groove (111) of the rotating disc (11), the abutting block (21) is arranged in the limiting groove (112) in a sliding mode, a sliding groove (113) is formed in one side, away from the first ejector pin (13), of the limiting groove (112) of the rotating disc (11), and the sliding groove (113) is communicated with the limiting groove (112);

sliding connection has slider (22) in spout (113), spacing groove (112) are equipped with connecting rod (23) between slider (22) and support tight piece (21), connecting rod (23) articulate on supporting tight piece (21) along length direction's one end, the other end of connecting rod (23) inclines and articulates on slider (22) to the one side of keeping away from mounting groove (111) diapire, the one end threaded connection that rolling disc (11) is close to tailstock (12) has countersunk head bolt (24) that is used for promoting slider (22).

6. The high-precision quick positioning mechanism of the rotary workpiece grinding machine as claimed in claim 5, characterized in that: a guide groove (114) is formed in the end face, close to the bottom wall of the mounting groove (111), of the limiting groove (112), a guide block (211) is connected in the guide groove (114) in a sliding mode, a spring (115) is arranged on one side, close to the mounting groove (111), of the guide groove (114), one end of the spring (115) is fixed to the sliding block (22), and the other end of the spring (115) is fixed to the end face of the guide groove (114);

when the abutting block (21) abuts against the first ejector pin (13), the spring (115) is in a partially compressed state.

7. The high-precision quick positioning mechanism of the rotary workpiece grinding machine as claimed in claim 5, characterized in that: a positioning groove (131) is formed in one end, close to the bottom wall of the mounting groove (111), of the first ejector pin (13), a positioning rod (15) is connected in the positioning groove (131) in a sliding mode, and one end, far away from the first ejector pin (13), of the positioning rod (15) is fixed to the bottom wall of the mounting groove (111).

8. The high-precision quick positioning mechanism of the rotary workpiece grinding machine as claimed in claim 5, characterized in that: one side that first thimble (13) is close to mounting groove (111) diapire is equipped with dog (132), works as when supporting tight piece (21) and contradict on first thimble (13), dog (132) are located and support between the diapire of tight piece (21) and mounting groove (111), just dog (132) are contradicted and are supported on tight piece (21).

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