CN112276752A

CN112276752A - Vertical grinding machine

Info

Publication number: CN112276752A
Application number: CN202011171080.9A
Authority: CN
Inventors: 虞荣华; 陈宝华; 梁晓
Original assignee: Taizhou Beiping Machine Tool Co ltd
Current assignee: Beiping machine tool (Zhejiang) Co.,Ltd.
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-01-29
Anticipated expiration: 2040-10-28
Also published as: CN112276752B

Abstract

The invention provides a vertical grinding machine, and belongs to the technical field of machinery. The vertical grinding machine comprises a clamp, wherein the clamp comprises a torque motor, the torque motor comprises a hollow rotating shaft, a rotating joint capable of conveying water and gas simultaneously is arranged at the lower end of the rotating shaft, the rotating joint comprises a static body and a rotating body fixedly connected with the rotating shaft, and an air outlet and a water outlet are formed in the rotating body; a water inlet pipe is vertically fixed in the rotating shaft, the lower end of the water inlet pipe is communicated with the water outlet, a drain pipe capable of translating up and down is arranged in the upper end of the rotating shaft, and the lower end of the drain pipe is sleeved outside the upper end of the water inlet pipe; the pivot upper end external fixation has the swivel seat, is equipped with the flexure strip on the swivel seat, flexure strip center through-hole, and the flexure strip edge links firmly with the swivel seat, and the drain pipe upper end passes center through-hole, has the shaft shoulder of pressing on the flexure strip diapire on the drain pipe, is fixed with a plurality of clamp blocks on the flexure strip roof, still is equipped with in the pivot to utilize to drive the drive structure that the drain pipe shifted up from the combustion gas in the gas outlet. This vertical grinder compact structure.

Description

Vertical grinding machine

Technical Field

The invention belongs to the technical field of machinery, and relates to a vertical grinding machine, in particular to a double-station vertical grinding machine.

Background

A grinding machine is a machine tool that grinds the surface of a workpiece using a grinding tool.

The existing grinding machine is a numerical control vertical double-station ball cage arc channel ball hole grinding machine (application number: 201220166346.5 comprises a basket-shaped lathe bed, a basket-shaped upright post, a first saddle, a first main spindle box, a second saddle, a second main spindle box, a channel grinding wheel, a ball hole grinding wheel, a swing rotary table, a positioning fixture and a swing transmission assembly, wherein the basket-shaped upright post is arranged at the rear part of the upper surface of the basket-shaped lathe bed, the first saddle and the second saddle are arranged on the basket-shaped upright post in parallel and can slide left and right along the basket-shaped upright post, the first main spindle box is fixed on the first saddle and can slide up and down along the saddle, the channel grinding wheel is fixed on the first main spindle box, the second main spindle box is fixed on the second saddle and can slide up and down along the saddle, the ball hole grinding wheel is fixed on the second main spindle box, the swing rotary table is arranged on the upper surface of the basket-shaped lathe bed at the middle part of the front side of the basket-shaped upright post, the positioning fixture is arranged on the swing rotary, the swing rotary table is characterized in that a swing transmission assembly of the swing rotary table is arranged at the rear part of the basket-shaped stand column, the swing transmission assembly is driven by a servo motor, the servo motor drives a screw rod, the screw rod is connected with a dividing device, the dividing device is also connected with a connecting rod, and the connecting rod penetrates through the basket-shaped stand column to be connected with the swing rotary table.

In the grinding machine, the heat of the grinding part needs to be sprayed and dissipated by the cooling water pipes arranged outside, and the cooling water pipes additionally arranged are distributed more dispersedly, so that the whole grinding machine structure looks more scattered.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a vertical grinding machine with a compact structure.

The purpose of the invention can be realized by the following technical scheme: the vertical grinding machine comprises a machine body, a horizontal sliding table arranged on the machine body and a clamp arranged on the horizontal sliding table, wherein the clamp comprises a torque motor fixed on the horizontal sliding table, and the torque motor comprises a hollow rotating shaft; a water inlet pipe is vertically fixed in the rotating shaft, the lower end of the water inlet pipe is communicated with the water outlet, a drain pipe capable of translating up and down is arranged in the upper end of the rotating shaft, the drain pipe, the water inlet pipe and the rotating shaft are coaxial, and the lower end of the drain pipe is sleeved outside the upper end of the water inlet pipe; a rotary seat is fixed outside the upper end of the rotating shaft, an elastic sheet is horizontally arranged on the rotary seat, a central through hole coaxial with the drain pipe is arranged on the elastic sheet, the edge of the elastic sheet is fixedly connected with the rotary seat, the upper end of the drain pipe sequentially penetrates through the rotary seat and the central through hole, a shaft shoulder pressed on the bottom wall of the elastic sheet is arranged on the drain pipe, and a plurality of clamping blocks uniformly distributed around the axis of the central hole are fixed on the top wall of the elastic sheet; the rotating shaft is also internally provided with a driving structure which drives the drain pipe to move upwards by using the gas exhausted from the gas outlet.

When the device is installed, the air inlet and the water inlet on the static body are respectively communicated with an air source and a water source; the annular workpiece mounting process comprises the following steps: gas is discharged into the driving structure through the gas inlet and the gas outlet to push the drain pipe to move upwards, the elastic piece is pressed by the shaft shoulder to enable the elastic piece to deform upwards so as to enable the clamping block to move backwards, the annular workpiece is placed into the elastic piece, then the gas is discharged, the elastic piece resets under the action of self elasticity, the drain pipe moves downwards to reset, and the clamping block moves forwards to clamp the annular workpiece; during grinding, the rotating shaft finally drives the annular workpiece to rotate, grinding operation is carried out through the grinding head, and cooling water is sprayed upwards through the water inlet, the water outlet, the water inlet pipe and the water discharge pipe to cool the grinding operation.

The driving structure for driving the drain pipe to move upwards and press the elastic piece and the cooling water conveying assembly consisting of the parts such as the water inlet pipe and the drain pipe are arranged in the rotating shaft, so that the distance between each part can be effectively reduced, the whole structure becomes compact, the occupied space is reduced, and the whole grinding machine structure looks more neat.

The drain pipe not only can be used to roof pressure flexure strip, is used for carrying the cooling water again and makes its up discharge, promptly in this application, the drain pipe possesses the dual-purpose effect of an thing to further simplify the structure, make the compacter of whole structure change.

In foretell vertical grinder, drive structure includes the bulge loop of shaping on the drain pipe outer wall, and drain pipe lower extreme overcoat has the support ring, and the support ring outer wall links firmly with the pivot is sealed, and forms sealedly through lower sealing washer between support ring inner wall and the drain pipe, forms between bulge loop downside, pivot, support ring, lower sealing washer and the drain pipe and be annular closed chamber, is equipped with the income gas port with closed chamber intercommunication on the support ring, and still is equipped with the trachea that is used for connecting income gas port and gas outlet in the pivot. When in use, the air is supplied to the closed cavity through the air inlet to drive the drain pipe to move upwards, and the device has the advantages of simple structure and convenient use.

In foretell vertical grinder, drive structure is including fixing the cylinder in the pivot, and the cylinder piston rod links firmly with the drain pipe lower extreme, and the gas outlet passes through the inlet port of connecting pipe intercommunication cylinder.

In the vertical grinding machine, the inner wall of the upper end of the rotating shaft is provided with the annular step, the annular step is composed of the annular side wall and the annular bottom wall, the convex ring is positioned in the annular step, the outer side wall of the convex ring is attached to the annular side wall, and the lower side of the convex ring is tightly pressed on the annular bottom wall under the action of the elastic sheet. The bulge loop lateral wall offsets with the annular side wall, realizes better direction, improves the gliding stability of drain pipe.

In the vertical grinding machine, the annular groove is formed in the outer side wall of the convex ring, the first sealing ring is arranged in the annular groove, and the outer side wall of the first sealing ring is abutted to the annular side wall, so that the sealing effect formed between the convex ring and the rotating shaft is enhanced, and the stability of the forming of the closed cavity is improved.

In the vertical grinding machine, the rotating seat is provided with a yielding hole for the drain pipe to pass through, and the side wall of the drain pipe forms sealing with the wall of the yielding hole through a sealing piece so as to prevent cooling water from leaking downwards into the rotating shaft and ensure the stability of work.

In foretell vertical grinder, the roating seat upside is equipped with the cavity, and the hole of stepping down sets up on the cavity diapire, and the roating seat lateral wall has run through at the position that is close to the cavity diapire and has seted up the wash port to the cooling water of gathering in the cavity is discharged fast.

In the vertical grinding machine, the sealing element comprises an upper oil seal and an upper sealing ring, the upper sealing ring is positioned between the upper oil seal and the rotating shaft, the outer side walls of the upper sealing ring and the upper oil seal are all pressed on the wall of the yielding hole, and the inner side walls of the upper sealing ring and the upper oil seal are all pressed on the outer wall of the drain pipe.

Naturally, the seal may also be just an upper oil seal or an upper seal ring.

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

1. the driving structure for driving the drain pipe to move upwards and press the elastic piece and the cooling water conveying assembly consisting of the parts such as the water inlet pipe and the drain pipe are arranged in the rotating shaft, so that the distance between each part can be effectively reduced, the whole structure becomes compact, the occupied space is reduced, and the whole grinding machine structure looks more neat.

2. The drain pipe not only can be used to roof pressure flexure strip, is used for carrying the cooling water again and makes its up discharge, promptly in this application, the drain pipe possesses the dual-purpose effect of an thing to further simplify the structure, make the compacter of whole structure change.

Drawings

Fig. 1 is a schematic structural view of a vertical grinding machine.

Fig. 2 is a perspective view of the clip.

Fig. 3 is a schematic sectional structure view of the jig.

Fig. 4 is an enlarged schematic view of a structure at a in fig. 3.

In the figure, 1, a lathe bed; 2. grinding heads; 3. a horizontal sliding table; 4. a vertical sliding table; 5. a grinding wheel; 6. a base body; 7. a partition plate; 8. a torque motor; 8a, a rotating shaft; 8b, an annular step; 9. a rotary joint; 9a, a stationary body; 9b, a rotating body; 10. a water inlet pipe; 11. a drain pipe; 11a, a shaft shoulder; 11b, a convex ring; 12. a rotating base; 12a, a cavity; 12b, a drain hole; 13. an elastic sheet; 14. a clamping block; 15. a support ring; 16. a lower seal ring; 17. a closed cavity; 18. an air tube; 19. oil seal is arranged; 20. and an upper sealing ring.

Detailed Description

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

Example one

As shown in fig. 1, the vertical grinder comprises a grinder body 1, a grinding head 2, and a horizontal sliding table 3 and a vertical sliding table 4 which are arranged on the grinder body 1, wherein the grinding head 2 is fixed on the vertical sliding table 4, and a grinding wheel 5 is fixed below the grinding head 2; horizontal slip table 3 sets up in emery wheel 5 below, is equipped with anchor clamps between horizontal slip table 3 and emery wheel 5, and anchor clamps one side is equipped with pedestal 6, and pedestal 6 is fixed on horizontal slip table 3, and is fixed with the buddha's warrior attendant pen that is used for maintaining emery wheel 5 on pedestal 6.

In this embodiment, the vertical grinding machine has a double-station structure, that is, at this time, two grinding heads 2 are arranged and distributed along the sliding direction of the horizontal sliding table 3; the grinding wheel 5, the base 6, the horizontal sliding table 3, the vertical sliding table 4, the diamond pen and the fixture are the same in quantity and are in one-to-one correspondence with the grinding head 2 in position. Preferably, a partition plate 7 is vertically fixed on the lathe bed 1, the partition plate 7 is positioned between the two fixtures to form two mutually independent working areas, so that the grinding efficiency is improved, and at the moment, the base body 6 is positioned between the partition plate 7 and the corresponding fixture.

As shown in fig. 2 and 3, the clamp comprises a torque motor 8 and a rotary joint 9 capable of simultaneously transporting water and gas, and the torque motor 8 and the rotary joint 9 are all existing products and are all commercially available. Wherein, torque motor 8 is fixed on horizontal slip table 3, including being hollow form pivot 8a, and pivot 8a is vertical setting. The rotary joint 9 comprises a stationary body 9a and a rotating body 9b fixedly connected with the lower end of the rotating shaft 8 a. The air inlet and the water inlet on the static body 9a, the air outlet and the water outlet are arranged on the rotating body 9b, the air inlet is communicated with the air outlet, and the water inlet is communicated with the water outlet. A water inlet pipe 10 is vertically fixed in the rotating shaft 8a, and the lower end of the water inlet pipe 10 is communicated with a water outlet. In this embodiment, the lower end of the water inlet pipe 10 is fixedly connected with the rotating body 9b, so as to be fixedly connected with the rotating shaft 8 a. Be equipped with the drain pipe 11 that can translate from top to bottom in the pivot 8a upper end, and the equal opening in both ends of drain pipe 11, oral siphon 10 and pivot 8a three are coaxial, and 11 lower extremes of drain pipe cup joint outside oral siphon 10 upper ends. In practical products, the shape and size of the inner side wall of the water outlet pipe 11 are matched with the outer side wall of the water inlet pipe 10, and the two are abutted to form a seal. Naturally, it is also possible to seal between the drain pipe 11 and the inlet pipe 10 by means of a sealing ring.

A rotary seat 12 is fixed outside the upper end of the rotating shaft 8a, and an elastic sheet 13 is horizontally arranged on the rotary seat 12. In practical use, the elastic sheet 13 is generally made of spring steel material, and naturally, the elastic sheet 13 may also be made of elastic material with certain strength, such as engineering plastics. As shown in fig. 1, the elastic sheet 13 has a central through hole coaxial with the drain pipe 11, and the edge of the elastic sheet 13 is fixedly connected with the rotary base 12. The upper end of the water discharge pipe 11 passes through the rotary seat 12 and the central through hole in sequence, and the water discharge pipe 11 is provided with a shaft shoulder 11a pressed on the bottom wall of the elastic sheet 13. A plurality of clamping blocks 14 which are uniformly distributed around the axis of the central hole are fixed on the top wall of the elastic sheet 13, and a clamping opening for clamping a workpiece is formed among the clamping blocks 14. The rotating shaft 8a is also provided with a driving structure for driving the drain pipe 11 to move upwards by using the gas discharged from the gas outlet.

In the present embodiment, as shown in fig. 3 and 4, the driving structure includes a convex ring 11b formed on the outer wall of the water discharge pipe 11, and the convex ring 11b is coaxial with the water discharge pipe 11. The lower end of the water drainage pipe 11 is sleeved with a support ring 15, the outer wall of the support ring 15 is fixedly connected with the rotating shaft 8a in a sealing mode, and the inner wall of the support ring 15 and the water drainage pipe 11 are sealed through a lower sealing ring 16. An annular closed cavity 17 is formed among the lower side of the convex ring 11b, the rotating shaft 8a, the support ring 15, the lower sealing ring 16 and the drain pipe 11, an air inlet communicated with the closed cavity 17 is formed in the support ring 15, and an air pipe 18 used for connecting the air inlet and the air outlet is further arranged in the rotating shaft 8 a. When in use, the air is supplied into the closed cavity 17 through the air inlet to drive the drain pipe 11 to move upwards, and the device has the advantages of simple structure and convenient use.

Wherein, be equipped with annular step 8b on the inner wall of pivot 8a upper end, annular step 8b comprises annular side wall and annular diapire, and bulge loop 11b is in annular step 8b, and the shape and the size of bulge loop 11b lateral wall all match and both paste together with annular side wall to under the effect of flexure strip 13, bulge loop 11b downside sticiss on the annular diapire. The outer side wall of the convex ring 11b is abutted against the annular side wall, so that better guiding is realized, and the sliding stability of the drain pipe 11 is improved. Further, an annular groove is formed in the outer side wall of the convex ring 11b, a first sealing ring is arranged in the annular groove, and the outer side wall of the first sealing ring abuts against the annular side wall, so that the sealing effect formed between the convex ring 11b and the rotating shaft 8a is enhanced, and the forming stability of the closed cavity 17 is improved.

As shown in fig. 3 and 4, the rotary base 12 is provided with a relief hole for the drain pipe 11 to pass through, and a sealing member seals the side wall of the drain pipe 11 and the wall of the relief hole to prevent the cooling water from leaking downward into the rotary shaft 8a, so as to ensure the stability of the operation. The upside of the rotary seat 12 is provided with a concave cavity 12a, the abdicating hole is arranged on the bottom wall of the concave cavity 12a, and the side wall of the rotary seat 12 is provided with a drainage hole 12b at the position close to the bottom wall of the concave cavity 12a in a penetrating way so as to quickly drain cooling water gathered in the concave cavity 12 a.

Wherein, the sealing member includes oil blanket 19 and last sealing washer 20, goes up sealing washer 20 and is located between oil blanket 19 and the pivot 8a, goes up sealing washer 20 and goes up the lateral wall of oil blanket 19 and all press on the hole wall of stepping down, goes up sealing washer 20 and goes up the inside wall voltage-sharing of oil blanket 19 on drain pipe 11 outer wall. Naturally, the seal may be only the upper oil seal 19 or the upper seal ring 20.

When the device is installed, the air inlet and the water inlet on the static body 9a are respectively communicated with an air source and a water source; the annular workpiece mounting process comprises the following steps: gas is discharged into a closed cavity 17 through a gas inlet, a gas outlet and a gas pipe 18, the water discharge pipe 11 is pushed to move upwards, the shaft shoulder 11a is utilized to press the elastic sheet 13 to enable the elastic sheet 13 to deform upwards so as to enable the clamping block 14 to move backwards, the annular workpiece is placed, then the gas is discharged, the elastic sheet 13 resets under the action of self elasticity, the water discharge pipe 11 moves downwards to reset, and the clamping block 14 moves forwards to clamp the annular workpiece; during grinding, the rotating shaft 8a finally drives the annular workpiece to rotate, grinding operation is carried out through the grinding head 2, and cooling water is sprayed upwards through the water inlet, the water outlet, the water inlet pipe 10 and the water outlet pipe 11 to cool the grinding operation.

Example two

The second embodiment is basically the same as the first embodiment in structure and principle, and the difference lies in: the driving structure comprises an air cylinder fixed in the rotating shaft 8a, a piston rod of the air cylinder is fixedly connected with the lower end of the water drainage pipe 11, and an air outlet is communicated with an air inlet hole of the air cylinder through a connecting pipe.

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 vertical grinding machine comprises a machine body (1), a horizontal sliding table (3) arranged on the machine body (1) and a clamp arranged on the horizontal sliding table (3), wherein the clamp comprises a torque motor (8) fixed on the horizontal sliding table (3), and the torque motor (8) comprises a hollow rotating shaft (8a), and is characterized in that a rotating joint (9) capable of simultaneously conveying water and gas is arranged at the lower end of the rotating shaft (8a), the rotating joint (9) comprises a static body (9a) and a rotating body (9b) fixedly connected with the rotating shaft (8a), and a gas outlet and a water outlet are formed in the rotating body (9 b); a water inlet pipe (10) is vertically fixed in the rotating shaft (8a), the lower end of the water inlet pipe (10) is communicated with a water outlet, a drain pipe (11) capable of translating up and down is arranged in the upper end of the rotating shaft (8a), the drain pipe (11), the water inlet pipe (10) and the rotating shaft (8a) are coaxial, and the lower end of the drain pipe (11) is sleeved outside the upper end of the water inlet pipe (10); a rotary seat (12) is fixed outside the upper end of the rotating shaft (8a), an elastic sheet (13) is horizontally arranged on the rotary seat (12), a central through hole coaxial with the drain pipe (11) is formed in the elastic sheet (13), the edge of the elastic sheet (13) is fixedly connected with the rotary seat (12), the upper end of the drain pipe (11) sequentially penetrates through the rotary seat (12) and the central through hole, a shaft shoulder (11a) pressed on the bottom wall of the elastic sheet (13) is formed in the drain pipe (11), and a plurality of clamping blocks (14) uniformly distributed around the axis of the central hole are fixed on the top wall of the elastic sheet (13); the rotating shaft (8a) is also internally provided with a driving structure for driving the drain pipe (11) to move upwards by using the gas discharged from the gas outlet.

2. The vertical grinding machine according to claim 1, characterized in that the driving structure comprises a convex ring (11b) formed on the outer wall of the drain pipe (11), a support ring (15) is sleeved outside the lower end of the drain pipe (11), the outer wall of the support ring (15) is hermetically and fixedly connected with the rotating shaft (8a), a seal is formed between the inner wall of the support ring (15) and the drain pipe (11) through a lower seal ring (16), an annular closed cavity (17) is formed between the lower side of the convex ring (11b), the rotating shaft (8a), the support ring (15), the lower seal ring (16) and the drain pipe (11), an air inlet communicated with the closed cavity (17) is formed in the support ring (15), and an air pipe (18) used for connecting the air inlet and the air outlet is further arranged in the rotating shaft (8 a.

3. The vertical grinding machine according to claim 1, characterized in that the driving structure comprises a cylinder fixed in the rotating shaft (8a), a piston rod of the cylinder is fixedly connected with the lower end of the drain pipe (11), and an air outlet is communicated with an air inlet of the cylinder through a connecting pipe.

4. The vertical grinding machine according to claim 2, characterized in that the upper end of the rotating shaft (8a) is provided with an annular step (8b), the annular step (8b) is composed of an annular side wall and an annular bottom wall, the convex ring (11b) is positioned in the annular step (8b), the outer side wall of the convex ring (11b) is abutted against the annular side wall, and the lower side of the convex ring (11b) is tightly pressed on the annular bottom wall under the action of the elastic sheet (13).

5. The vertical grinding machine according to claim 4, characterized in that the outer side wall of the convex ring (11b) is provided with a ring-shaped groove, a first sealing ring is arranged in the ring-shaped groove, and the outer side wall of the first sealing ring is abutted against the ring-shaped side wall.

6. The vertical grinder as claimed in claim 1, wherein the rotary base (12) is provided with a relief hole for the drain pipe (11) to pass through, and the side wall of the drain pipe (11) is sealed with the wall of the relief hole by a sealing member.

7. The vertical grinding machine according to claim 6, characterized in that the upper side of the rotating base (12) is provided with a concave cavity (12a), the abdicating hole is arranged on the bottom wall of the concave cavity (12a), and the side wall of the rotating base (12) is provided with a drainage hole (12b) at the position close to the bottom wall of the concave cavity (12 a).

8. The vertical grinding machine according to claim 6 or 7, characterized in that the sealing element comprises an upper oil seal (19) and an upper sealing ring (20), the upper sealing ring (20) is positioned between the upper oil seal (19) and the rotating shaft (8a), the outer side walls of the upper sealing ring (20) and the upper oil seal (19) are pressed on the wall of the yielding hole, and the inner side walls of the upper sealing ring (20) and the upper sealing ring (19) are pressed on the outer wall of the drain pipe (11).