CN114850986A

CN114850986A - Grinding machine tailstock

Info

Publication number: CN114850986A
Application number: CN202210372650.3A
Authority: CN
Inventors: 虞荣华; 陈宝华; 邱海燕
Original assignee: Beiping Machine Tool Zhejiang Co ltd
Current assignee: Beiping Machine Tool Zhejiang Co ltd
Priority date: 2022-04-11
Filing date: 2022-04-11
Publication date: 2022-08-05

Abstract

The invention provides a grinding machine tailstock, and belongs to the technical field of machinery. It has solved the inconvenient problem of current grinding machine operation. This grinding machine tailstock includes the pedestal, be equipped with in the pedestal and be the through-hole that runs through about, the level is equipped with top in the through-hole, top left end is the toper and stretches out the through-hole, the pedestal right side is equipped with the cylinder, cylinder piston rod and top coaxial setting, cylinder piston rod stretches into the through-hole and links firmly with top right-hand member, it is provided with the axle sleeve still to go back horizontal rotation in the through-hole, the axle sleeve cover is top outside, axle sleeve and top eccentric settings, the axle sleeve right-hand member links firmly with cylinder body, and still be equipped with on the pedestal and be used for driving the axle sleeve around the rotatory rotary mechanism of self axis. The grinding machine tailstock is convenient to operate.

Description

Grinding machine tailstock

Technical Field

The invention belongs to the technical field of machinery, and relates to a grinding machine, in particular to a tail frame of the grinding machine.

Background

When a cylindrical surface is ground and processed by a shaft grinding machine, indexes such as cylindricity and bus parallelism of a workpiece can not meet requirements, and quality problems such as unnecessary taper and the like can occur.

For solving the problem, according to the existing method, a layer of upper workbench capable of rotating at an angle in the horizontal direction is designed on the upper surface of the workbench of a common grinding machine, so that the angle of the rotating center line of the machine tool can be changed by adjusting the angle of the upper workbench, and the problem of taper occurring in the processing of cylindrical workpieces is solved. The method has complex structure, higher manufacturing requirement and cost, and time and labor are wasted because the locking pressing plates on the left side and the right side of the workbench seat are required to be repeatedly tightened and loosened during adjustment.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a grinding machine tailstock convenient to operate.

The purpose of the invention can be realized by the following technical scheme: the utility model provides a grinding machine tailstock, comprising a base, be equipped with in the pedestal and be about the through-hole that runs through, the level is equipped with top in the through-hole, top left end is the toper and stretches out the through-hole, the pedestal right side is equipped with the cylinder, cylinder piston rod and top coaxial setting, cylinder piston rod stretches into the through-hole and links firmly with top right-hand member, a serial communication port, it is provided with the axle sleeve to go back horizontal rotation in the through-hole, the axle sleeve cover is top outside, axle sleeve and top eccentric settings, the axle sleeve right-hand member links firmly with cylinder body, and still be equipped with on the pedestal and be used for driving the axle sleeve around the rotatory rotary mechanism of self axis.

When the grinding machine is used, the rotating mechanism drives the shaft sleeve to rotate, the center is driven to synchronously rotate through the air cylinder, and due to the fact that the shaft sleeve and the center are eccentrically arranged, when the shaft sleeve rotates, the center can generate forward or backward offset to enable the center of the center to horizontally move on the body of the grinding machine, the relative angle between the rotating center line of the workpiece and a grinding line is changed, the problem of machining taper and the like is solved, the whole process can be achieved only by rotating the shaft sleeve, and the grinding machine has the advantages of being convenient to use and high in grinding precision.

In the grinding machine tailstock, the right side of the seat body is also fixed with a measuring meter, the outer side wall of the cylinder body of the cylinder is formed with a circumferential surface coaxial with the tip, and a measuring head of the measuring meter is pressed on the circumferential surface. During the use, judge the eccentric condition through observing the scale numerical value, realize visual operation, make the operator can acquire eccentric condition and eccentric adjustment data accurately, so not only convenient to use makes top adjustment more accurate moreover, improves the grinding precision.

In the grinding machine tailstock, the outer wall of the shaft sleeve and the inner wall of the through hole are circumferential surfaces which are matched with each other and are attached to each other, the left end of the shaft sleeve extends out of the through hole, an annular convex shoulder is formed on the outer wall of the left end of the shaft sleeve, and the cylinder body and the annular convex shoulder are tightly pressed on the right side surface and the left side surface of the seat body respectively. The axle sleeve utilizes its self structure and cylinder cooperation to realize rotational positioning, and axle sleeve location need not be with the help of other spare parts promptly to through simplifying the structure, do benefit to the equipment.

In foretell grinding machine tailstock, seted up the groove of stepping down on the outer wall of axle sleeve middle part, the groove of stepping down is cyclic annular and coaxial with the axle sleeve to reduce both relative friction through reducing axle sleeve and pedestal area of contact, make the axle sleeve more steady rotate in order to obtain more accurate top offset, further improve grinding precision.

In the grinding machine tailstock, the rotating mechanism is arranged outside the seat body and arranged on one side of the left end of the shaft sleeve, so that the distance between each part can be reduced on the premise of convenient assembly, the whole structure becomes more compact, and the occupied space is reduced.

In foretell grinding machine tailstock, rotary mechanism includes the lead screw of vertical setting and the nut of spiro union on the lead screw, and the lead screw rotates with the pedestal to be connected, and the vertical floating joint that is equipped with in nut below, and the upper end that floats the joint links firmly with the nut, and the lower extreme that floats the joint links firmly through keysets and axle sleeve left end, still is equipped with the locking structure dismantled that is used for locking the lead screw on the pedestal. The using process is as follows: the detachable locking structure is disassembled, and then the lead screw is rotated to drive the nut to move up and down, so that the floating joint swings in a certain range, the shaft sleeve is driven to rotate, and the horizontal adjustment of the center is realized; after the adjustment is finished, the detachable locking structure is arranged to lock the screw rod again, so that the tip is positioned at the locking position, and the device has the advantages of simple structure and convenience in operation.

In foretell grinding machine tailstock, can dismantle locking structure including being annular hand wheel and fixing the internal thread ring in the hand wheel, the lead screw upper end stretches into hand wheel and screw in internal thread ring, and the internal thread ring possesses elasticity and a side opening, and the opening comprises last lateral wall and the lower lateral wall that sets up side by side along the lead screw axial, and it has the connecting hole to go up vertical running through on the lateral wall, corresponds on the lateral wall down to be equipped with the screw hole, is equipped with the screw in the connecting hole, screw pole portion screw in screw hole, and the screw head sticiss on last lateral wall. The locking process is as follows: the screw is screwed to deform the opening and tightly hold the screw rod, and the screw rod clamping device has the advantages of simple structure and convenience in operation.

As another scheme, in the grinding machine tailstock, the detachable locking structure comprises a limiting hole horizontally penetrating through the lead screw and a limiting rod penetrating through the limiting hole, and one end of the limiting rod is detachably and fixedly connected with the base body.

As another scheme, in the grinding machine tailstock, the rotating mechanism comprises an electric push rod and a connecting rod horizontally arranged, the middle part of the connecting rod is hinged to the base through a shaft, and two ends of the connecting rod are fixedly connected with the left end of the shaft sleeve and a main shaft of the electric push rod respectively.

In the grinding machine tailstock, the inner diameter of a shaft sleeve is larger than the outer diameter of a piston rod of a cylinder; the left end of the cylinder piston rod extends out of the through hole, and the left end of the cylinder piston rod is provided with a taper hole for mounting a tip; through oil blanket sealing between axle sleeve and the cylinder piston rod, and the oil blanket setting is in axle sleeve left end department to avoid impurity such as dust to enter into the axle sleeve, ensure top smooth and easy slip, job stabilization nature is better.

Compared with the prior art, the grinding machine tailstock has the following advantages:

1. when the grinding machine is used, the rotating mechanism drives the shaft sleeve to rotate, the center is driven to synchronously rotate through the air cylinder, and due to the fact that the shaft sleeve and the center are eccentrically arranged, when the shaft sleeve rotates, the center can generate forward or backward offset to enable the center of the center to horizontally move on the body of the grinding machine, the relative angle between the rotating center line of the workpiece and a grinding line is changed, the problem of machining taper and the like is solved, the whole process can be achieved only by rotating the shaft sleeve, and the grinding machine has the advantages of being convenient to use and high in grinding precision.

2. During the use, judge the eccentric condition through observing the scale numerical value, realize visual operation, make the operator can acquire eccentric condition and eccentric adjustment data accurately, so not only convenient to use makes top adjustment more accurate moreover, improves the grinding precision.

Drawings

Fig. 1 is a schematic perspective view of a grinder tailstock.

Fig. 2 is a schematic perspective view of the grinder tailstock in another direction.

Fig. 3 is a schematic sectional structure view of a grinder tailstock.

Fig. 4 is a schematic view of a rotary structure.

Fig. 5 is an enlarged schematic view of a structure at a in fig. 4.

Fig. 6 is a schematic view of the mounting structure of the interposer.

In the figure, 1, a seat body; 2. a tip; 3. a cylinder; 3a, a circumferential surface; 4. a shaft sleeve; 4a, an annular shoulder; 5. oil sealing; 6. a lead screw; 7. a nut; 8. a floating joint; 9. an adapter plate; 10. a hand wheel; 11. an internally threaded ring; 11a, an opening; 12. a screw; 13. and (4) measuring the weight.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 and 3, the grinding machine tailstock comprises a base body 1, a through hole is formed in the base body 1 in a left-right penetrating mode, a center 2 is horizontally arranged in the through hole, the left end of the center 2 is conical and extends out of the through hole, an air cylinder 3 is arranged on the right side of the base body 1, a piston rod of the air cylinder 3 is coaxially arranged with the center 2, and a piston rod of the air cylinder 3 extends into the through hole and is fixedly connected with the right end of the center 2. Still horizontal rotation is provided with axle sleeve 4 in the through-hole, and axle sleeve 4 overlaps outside top 2, and axle sleeve 4 and top 2 eccentric settings, 4 right-hand members of axle sleeve and 3 cylinder bodies of cylinder link firmly, and still be equipped with on the pedestal 1 and be used for driving axle sleeve 4 rotatory rotary mechanism around self axis. When the grinding machine is used, the rotating mechanism drives the shaft sleeve 4 to rotate, the cylinder 3 drives the tip 2 to synchronously rotate, and the shaft sleeve 4 and the tip 2 are eccentrically arranged, so that when the shaft sleeve 4 rotates, the tip 2 can generate forward or backward offset to enable the center of the tip 2 to horizontally move on the body of the grinding machine, the relative angle between the rotating center line of the workpiece and a grinding line is changed, the problems of machining taper and the like are solved, and the grinding precision is further improved.

Wherein the content of the first and second substances,

the shaft sleeve 4 is positioned as follows: the outer wall of the shaft sleeve 4 and the inner wall of the through hole are circumferential surfaces 3a which are matched with each other and are attached to each other, the left end of the shaft sleeve 4 extends out of the through hole, an annular convex shoulder 4a is formed on the outer wall of the left end of the shaft sleeve 4, and the cylinder body of the cylinder 3 and the annular convex shoulder 4a are tightly pressed on the right side surface and the left side surface of the seat body 1 respectively. The shaft sleeve 4 is matched with the cylinder 3 by utilizing the structure thereof to realize rotation positioning, namely the shaft sleeve 4 is positioned without other parts, so that the assembly is facilitated by simplifying the structure. Further, the outer wall of the middle of the shaft sleeve 4 is provided with a receding groove which is annular and coaxial with the shaft sleeve 4, so that the relative friction between the shaft sleeve 4 and the base body 1 is reduced by reducing the contact area of the shaft sleeve 4 and the base body, the shaft sleeve 4 can rotate more stably to obtain more accurate offset of the center 2, and the grinding precision is further improved.

The connection mode of the piston rod of the cylinder 3 and the centre 2 is as follows: the taper hole has been seted up to 3 piston rod left ends of cylinder, top 2 stalk portion be the toper that matches with the taper hole, and top 2 stalk portion inserts and inlays in the taper hole. Further, the inner diameter of the shaft sleeve 4 is larger than the outer diameter of the piston rod of the cylinder 3; and the left end of the piston rod of the cylinder 3 extends out of the through hole. Seal through oil blanket 5 between 4 and the 3 piston rods of cylinder of axle sleeve, and oil blanket 5 sets up in 4 left port departments of axle sleeve to avoid impurity such as dust to enter into axle sleeve 4, ensure that top 2 smoothly slides, job stabilization nature is better.

As shown in fig. 1, fig. 4 and fig. 6, the rotating mechanism is located outside the seat body 1 and is disposed on one side of the left end of the shaft sleeve 4, and the rotating mechanism is specifically as follows: the rotating mechanism comprises a vertically arranged lead screw 6 and a nut 7 screwed on the lead screw 6. Wherein, lead screw 6 rotates with pedestal 1 to be connected, and the nut 7 below is vertical to be equipped with floating joint 8, and floating joint 8's upper end links firmly with nut 7, and floating joint 8's lower extreme links firmly with 4 left ends of axle sleeve through keysets 9, still is equipped with the locking structure dismantled that is used for locking lead screw 6 on the pedestal 1. The using process is as follows: the detachable locking structure is disassembled, and then the screw rod 6 is rotated to drive the nut 7 to move up and down, so that the floating joint 8 swings in a certain range, and the shaft sleeve 4 is driven to rotate, and the center 2 is horizontally adjusted; after the adjustment is finished, the detachable locking structure is arranged to lock the screw rod 6 again, so that the tip 2 is positioned at the locking position, and the adjusting device has the advantages of simple structure and convenience in operation.

The detachable locking structure is as follows: as shown in fig. 4 and 5, the detachable locking structure comprises an annular hand wheel 10 and an internal thread ring 11 fixed in the hand wheel 10, the upper end of a lead screw 6 extends into the hand wheel 10 and is screwed into the internal thread ring 11, the internal thread ring 11 has elasticity and an opening 11a on one side, the opening 11a is formed by an upper side wall and a lower side wall which are arranged in parallel along the axial direction of the lead screw 6, a connecting hole vertically penetrates through the upper side wall, a threaded hole is correspondingly formed in the lower side wall, a screw 12 is arranged in the connecting hole, the rod part of the screw 12 is screwed into the threaded hole, and the head of the screw 12 is tightly pressed on the upper side wall. The locking process is as follows: the screw 12 is screwed to deform the opening 11a to tightly hold the screw rod 6, and the screw clamp has the advantages of simple structure and convenience in operation. Preferably, the internally threaded ring 11 is made of stainless steel, and naturally, the internally threaded ring 11 may also be made of plastic.

In the actual product, as shown in fig. 2, a gauge 13 is further fixed on the right side of the seat body 1, and the gauge 13 is an existing product and can be obtained in the market. The cylinder 3 has a circumferential surface 3a formed on the outer wall of the cylinder body coaxially with the center 2, and the measuring head of the measuring gauge 13 is pressed against the circumferential surface 3 a. During the use, judge the eccentric condition through 13 numerical values of observation scale, realize visual operation, make the operator can acquire eccentric condition and eccentric adjustment data accurately, so not only convenient to use makes top 2 adjust more accurate moreover, improves the grinding precision.

Example two

The structure and principle of the second embodiment are basically the same as those of the first embodiment, and different points are as follows: the detachable locking structure comprises a limiting hole which is horizontally arranged on the lead screw 6 in a penetrating mode and a limiting rod which is arranged in the limiting hole in a penetrating mode, and one end of the limiting rod is detachably and fixedly connected with the base body 1.

EXAMPLE III

The structure and principle of the third embodiment are basically the same as those of the first embodiment, and different points are as follows: the rotating mechanism comprises an electric push rod and a connecting rod horizontally arranged, the middle of the connecting rod is hinged with the base body 1 through a shaft piece, and two ends of the connecting rod are fixedly connected with the left end of the shaft sleeve 4 and a main shaft of the electric push rod respectively.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. The utility model provides a grinding machine tailstock, which comprises a base body (1), be equipped with in pedestal (1) and be about being the through-hole that runs through, the level is equipped with top (2) in the through-hole, top (2) left end is the toper and stretches out the through-hole, pedestal (1) right side is equipped with cylinder (3), cylinder (3) piston rod and top (2) coaxial setting, cylinder (3) piston rod stretches into the through-hole and links firmly with top (2) right-hand member, a serial communication port, it is provided with axle sleeve (4) to go back horizontal rotation in the through-hole, axle sleeve (4) cover is outside top (2), axle sleeve (4) and top (2) eccentric settings, axle sleeve (4) right-hand member links firmly with cylinder (3) cylinder body, and still be equipped with on pedestal (1) and be used for driving axle sleeve (4) around the rotatory rotary mechanism of self axis.

2. A grinder tailstock according to claim 1, wherein a measuring meter (13) is further fixed on the right side of the seat body (1), a circumferential surface (3a) coaxial with the center (2) is formed on the outer side wall of the cylinder (3), and a measuring head of the measuring meter (13) is pressed on the circumferential surface (3 a).

3. A grinder tailstock according to claim 1 or 2, characterized in that the outer wall of the sleeve (4) and the inner wall of the through hole are mutually matched circumferential surfaces (3a) and are abutted, the left end of the sleeve (4) extends out of the through hole, an annular shoulder (4a) is formed on the outer wall of the left end of the sleeve (4), and the cylinder body of the cylinder (3) and the annular shoulder (4a) are respectively pressed tightly on the right side surface and the left side surface of the seat body (1).

4. The grinding machine tailstock according to claim 3, characterized in that the outer wall of the middle part of the shaft sleeve (4) is provided with an abdication groove which is annular and coaxial with the shaft sleeve (4).

5. A grinder tailstock according to claim 3, characterized in that the rotating mechanism is outside the seat (1) and is arranged on the left side of the sleeve (4).

6. The grinding machine tailstock according to claim 5, characterized in that the rotating mechanism comprises a vertically arranged lead screw (6) and a nut (7) screwed on the lead screw (6), the lead screw (6) is rotatably connected with the base body (1), a floating joint (8) is vertically arranged below the nut (7), the upper end of the floating joint (8) is fixedly connected with the nut (7), the lower end of the floating joint (8) is fixedly connected with the left end of the shaft sleeve (4) through an adapter plate (9), and the base body (1) is further provided with a detachable locking structure for locking the lead screw (6).

7. The grinding machine tailstock according to claim 6, characterized in that the detachable locking structure comprises an annular hand wheel (10) and an internal thread ring (11) fixed in the hand wheel (10), the upper end of the lead screw (6) extends into the hand wheel (10) and is screwed into the internal thread ring (11), the internal thread ring (11) is elastic and has an opening (11a) at one side, the opening (11a) is composed of an upper side wall and a lower side wall which are arranged in parallel along the axial direction of the lead screw (6), a connecting hole vertically penetrates through the upper side wall, a threaded hole is correspondingly formed in the lower side wall, a screw (12) is arranged in the connecting hole, the rod part of the screw (12) is screwed into the threaded hole, and the head part of the screw (12) is tightly pressed on the upper side wall.

8. A grinder tailstock according to claim 3, characterized in that the internal diameter of the sleeve (4) is greater than the external diameter of the piston rod of the cylinder (3); the left end of the piston rod of the cylinder (3) extends out of the through hole, and the left end of the piston rod of the cylinder (3) is provided with a taper hole for mounting the center (2); the shaft sleeve (4) and the piston rod of the air cylinder (3) are sealed by an oil seal (5), and the oil seal (5) is arranged at the left port of the shaft sleeve (4).

9. The grinding machine tailstock according to claim 6, characterized in that the detachable locking structure comprises a limiting hole horizontally penetrating through the lead screw (6) and a limiting rod penetrating through the limiting hole, and one end of the limiting rod is detachably and fixedly connected with the base body (1).

10. The grinding machine tailstock according to claim 1, characterized in that the rotating mechanism comprises an electric push rod and a horizontally arranged connecting rod, the middle part of the connecting rod is hinged with the seat body (1) through a shaft, and two ends of the connecting rod are fixedly connected with the left end of the shaft sleeve (4) and a main shaft of the electric push rod respectively.