CN113334194B

CN113334194B - Novel vertical grinding machine

Info

Publication number: CN113334194B
Application number: CN202110786086.5A
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: 2021-07-12
Filing date: 2021-07-12
Publication date: 2023-03-31
Anticipated expiration: 2041-07-12
Also published as: CN113334194A

Abstract

The invention provides a novel vertical grinding machine, and belongs to the technical field of machinery. It has solved the inconvenient problem of current grinding machine operation. The novel vertical grinding machine comprises a machine base, a clamp arranged on the machine base and a sliding seat arranged on one side of the clamp, wherein the sliding seat is driven by a lifting piece to move up and down; the sliding seat is provided with a rotating mechanism which is used for driving the spindle motor to swing 180 degrees around the central line so as to enable the two grinding wheels to respectively rotate to the clamp. This novel vertical grinder convenient operation.

Description

Novel 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 novel vertical grinding machine.

Background

Grinding machines are machine tools that grind the surface of a workpiece with a grindstone, and most grinding machines grind the workpiece with a grindstone that rotates at high speed.

For some workpieces with higher requirements on machining precision, grinding is generally carried out twice during machining, namely rough grinding and finish grinding. For the two procedures of rough grinding and accurate grinding, the existing method is to separately grind and process by two grinding machines, the whole process involves multiple clamping of workpieces, the operation is inconvenient, and the processing precision is influenced.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a novel vertical grinding machine which is convenient to machine and high in precision.

The purpose of the invention can be realized by the following technical scheme: a novel vertical grinding machine comprises a machine base, a clamp arranged on the machine base and a sliding seat arranged on one side of the clamp, wherein the sliding seat is driven by a lifting piece to move up and down, and the sliding seat is provided with a spindle motor with a horizontally arranged central line; the sliding seat is provided with a rotating mechanism which is used for driving the spindle motor to swing 180 degrees around the central line so as to enable the two grinding wheels to respectively rotate to the clamp.

When the device is used, a workpiece is clamped on the clamp, the lifting piece drives the sliding seat to move downwards to enable one grinding wheel to enter a grinding position, and the workpiece is subjected to coarse grinding; after coarse grinding is finished, the lifting piece drives the spindle motor to integrally move upwards through the sliding seat, then the rotating mechanism drives the spindle motor to swing for 180 degrees to enable the other grinding wheel to be located above the grinding position, then the lifting piece drives the sliding seat to move downwards again to enable the other grinding wheel to enter the grinding position, and then the workpiece is finely ground.

Under the cooperation of the rotating mechanism, the spindle motor with the two output shafts, the lifting piece and other components, the workpiece can be continuously subjected to rough grinding processing and finish grinding processing through one-time clamping, namely, the processing of the workpiece is completed on the clamp at one time, and the device has the advantages of convenience in operation and high processing precision.

In the novel vertical grinding machine, the rotating mechanism comprises a driving shaft and a rotating motor for driving the driving shaft to rotate around the axis of the rotating motor, and the driving shaft can only rotate 180 degrees each time; the driving shaft is positioned between the spindle motor and the sliding seat, and the axis of the driving shaft is collinear with the central line; the driving shaft is rotationally connected with the sliding seat, and the spindle motor is fixedly connected with the driving shaft through a connecting plate. By adopting the design, the device has the advantages of simple structure and convenience in installation.

In the novel vertical grinding machine, a first ring body and a second ring body are sleeved outside the driving shaft, the second ring body is positioned between the first ring body and the connecting plate, and the first ring body and the second ring body are fixedly connected with the sliding seat; a friction pair and an annular piston are arranged between the first ring body and the second ring body, and the friction pair is positioned between the piston and the second ring body; the piston is sleeved outside the driving shaft, an annular and closed oil cavity I is formed between the ring body I and the piston, and the ring body I is provided with an oil hole which enables the oil cavity to be communicated with the outside; the friction pair comprises a dynamic friction plate and a static friction plate which are sleeved outside the driving shaft, the dynamic friction plate is fixedly connected with the driving shaft, the dynamic friction plate is provided with at least two static friction plates, the static friction plates are more than the dynamic friction plates by one plate, the static friction plates and the dynamic friction plates are alternately distributed along the axial direction of the driving shaft, and the two static friction plates at the head and the tail are respectively pressed on the first ring body and the second ring body. When the grinding wheel is used, the oil hole is communicated with the hydraulic supply mechanism, hydraulic oil is fed into the first oil cavity, the piston is pushed to enable the static friction plate to extrude the dynamic friction plate to lock the driving shaft, the grinding wheel is enabled to accurately rotate to a machining position and not to drift or vibrate, and the working stability and precision are effectively improved.

In foretell novel vertical grinder, be fixed with a support section of thick bamboo on the slide, the support section of thick bamboo cover is outside the drive shaft, and the drive shaft passes through the bearing to be connected with a support section of thick bamboo rotation, and ring body two links firmly with a support section of thick bamboo, and is equipped with the opening just to the oilhole on the support section of thick bamboo lateral wall.

In the novel vertical grinding machine, the positioning ring is sleeved outside the connecting plate and fixedly connected with the supporting cylinder, the limiting ring made of elastic materials is arranged between the positioning ring and the connecting plate, the limiting ring is sleeved outside the connecting plate, the inner wall of the limiting ring and the outer wall of the connecting plate are mutually matched circumferential surfaces and are attached together, the limiting ring is fixedly connected with the positioning ring in a sealing mode, an annular and closed oil cavity II is formed between the limiting ring and the positioning ring, and an oil duct enabling the oil cavity II to be communicated with the outside is arranged on the positioning ring. When the oil-pressure limiting device is used, hydraulic oil is input into the oil cavity II through the oil duct, the limiting ring is elastically deformed to tightly hold the connecting plate, the driving shaft is further locked, and the working stability and the precision are improved.

In foretell novel vertical grinder, seted up the ring channel on the lateral wall of spacing ring, and the ring channel is coaxial with the spacing ring, and the spacing ring passes through to form sealedly between sealing washer and the holding ring, and the sealing washer has two and distributes in the ring channel both sides, and forms foretell oil pocket two between holding ring, ring channel and two sealing washers, has simple structure, simple to operate's advantage.

In foretell novel vertical grinder, the spacing ring includes integrated into one piece the connecting seat on its lateral wall, and the connecting seat is the annular and coaxial with the spacing ring, and the connecting seat is in between holding ring and the spindle motor, and the connecting seat supports to press on the holding ring, and connecting seat and holding ring link firmly to make things convenient for the spacing ring installation.

In the novel vertical grinding machine, the annular groove extends to the connecting seat, and one of the sealing rings is located between the connecting seat and the positioning ring. The annular groove extends to the connecting seat, can make two length maximums of oil pocket, makes the spacing ring pressurized change the deformation and hugs the connecting plate tightly, further improves the stability of stopping the drive shaft.

As another scheme, in the above novel vertical grinding machine, the rotating mechanism is a rotating cylinder, and the spindle motor is fixed on a spindle of the rotating cylinder through a support plate.

In foretell novel vertical grinder, sliding connection about slide and the frame, remove to the slide and play the guide effect, improve the slide precision to improve the machining precision.

In foretell novel vertical grinder, the rotating electrical machines sets up outside the support cylinder, and the rotating electrical machines drives the drive shaft through drive mechanism and rotates.

Compared with the prior art, this novel vertical grinder has following advantage:

1. under the cooperation of the rotating mechanism, the spindle motor with the two output shafts, the lifting piece and other components, the workpiece can be continuously subjected to rough grinding processing and finish grinding processing through one-time clamping, namely, the processing of the workpiece is completed on the clamp at one time, and the device has the advantages of convenience in operation and high processing precision.

2. The design ring body one, the ring body two, the cooperation of piston and friction pair is at the locking drive shaft of axial, designs spacing ring, holding ring and connecting plate cooperation again simultaneously and radially locks the drive shaft, and both combine to promote brake performance effectively, can realize that the drive shaft is accurate to be stopped, can prevent again that the emery wheel from taking place drift or vibration phenomenon when the grinding, effectively improve job stabilization nature and precision.

Drawings

Fig. 1 is a schematic perspective view of a novel vertical grinding machine.

Fig. 2 is a schematic view of the positional structure of the carriage and the spindle motor.

Fig. 3 is a schematic structural view of the rotating mechanism.

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

Fig. 5 is an enlarged schematic view of B in fig. 3.

In the figure, 1, a machine base; 2. a lifting member; 3. a clamp; 4. a slide base; 5. a spindle motor; 5a, an output shaft; 6. a grinding wheel; 7. a drive shaft; 8. a rotating electric machine; 9. a connecting plate; 10. a support cylinder; 11. a bearing; 12. a worm gear; 13. a ring body I; 14. a ring body II; 15. a piston; 16. an oil cavity I; 17. a dynamic friction plate; 18. a static friction plate; 19. a positioning ring; 19a, an oil passage; 20. a limiting ring; 20a, a connecting seat; 21. an oil cavity II; 22. and (5) sealing rings.

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 novel vertical grinder comprises a base 1, a lifting member 2, a clamp 3 arranged on the base 1, and a slide 4 arranged on one side of the clamp 3.

Wherein, the first and the second end of the pipe are connected with each other,

the clamp 3 is of a conventional construction, which is commercially available, and in the present embodiment, the type of the clamp 3 is a diaphragm chuck.

The sliding seat 4 is connected with the base 1 in a vertical sliding mode, and the lifting piece 2 is used for driving the sliding seat 4 to move vertically. In this embodiment, the sliding seat 4 is slidably connected to the machine base 1 by a guide block and guide rail, and naturally, the sliding seat 4 may be slidably connected to the machine base 1 by a sliding block and sliding groove. The lifting piece 2 is a balance cylinder, the cylinder body of the balance cylinder is fixed on the machine base 1, and the piston 15 rod of the balance cylinder is fixedly connected with the sliding seat 4. Naturally, the lifting member may also be a cylinder.

As shown in fig. 1 and 2, a spindle motor 5 is disposed on a side of the slide 4 close to the clamp 3, and the spindle motor 5 is a conventional product, and a detailed structure thereof will not be described in detail. The spindle motor 5 comprises two output shafts 5a and a horizontally arranged center line, wherein the two output shafts 5a are symmetrically arranged along the center of the spindle motor 5, and the center of the spindle motor 5 is positioned on the center line; the two output shafts 5a are both fixed with grinding wheels 6; the slide 4 is provided with a rotating mechanism for driving the spindle motor 5 to swing 180 degrees around the central line so as to enable the two grinding wheels 6 to respectively rotate to the clamp 3.

In particular, in the case of a system,

as shown in fig. 3, the rotating mechanism includes a driving shaft 7 and a rotating motor 8 for rotating the driving shaft 7 around its axis, and the driving shaft 7 can rotate only 180 degrees at a time. The drive shaft 7 is located between the spindle motor 5 and the slide 4, and the axis of the drive shaft 7 is collinear with the above-mentioned centre line. The driving shaft 7 is rotatably connected with the sliding seat 4, and the spindle motor 5 is fixedly connected with the driving shaft 7 through a connecting plate 9.

the drive shaft 7 is connected to the carriage 4 in a rotatable manner as follows: a support cylinder 10 is fixed on the slide 4, and the support cylinder 10 is located between the spindle motor 5 and the slide 4. The support cylinder 10 is coaxial with the drive shaft 7, and the support cylinder 10 is sleeved outside the drive shaft 7. The driving shaft 7 is rotatably connected with the supporting cylinder 10 through a bearing 11, namely, at this time, an inner ring and an outer ring of the bearing 11 are fixedly connected with the driving shaft 7 and the supporting cylinder 10 respectively.

Further, a slot matched with the driving shaft 7 is formed in one side, close to the sliding seat 4, of the connecting plate 9, one end of the driving shaft 7 is inserted into the slot, and the driving shaft 7 and the connecting plate 9 are preferably fixedly connected in a welding mode. The connecting plate 9 is pressed against the inner ring of the bearing 11, and the connecting plate 9 is fixedly connected with the inner ring of the bearing 11, so that the rotating stability of the connecting plate 9 is further improved.

The rotating motor 8 is arranged outside the supporting cylinder 10, and the rotating motor 8 drives the driving shaft 7 to rotate through a transmission mechanism. In this embodiment, the transmission mechanism includes a worm wheel 12 fixed on the driving shaft 7, an opening (not shown) is provided on the side wall of the supporting cylinder 10 to allow one side of the worm wheel 12 to extend out, and a worm (not shown) engaged with the worm wheel 12 is mainly fixed on the rotating motor 8 to drive the driving shaft 7 to rotate stably. Naturally, the transmission mechanism may also adopt a gear transmission mode.

In a further elaboration of the above,

as shown in fig. 4, the driving shaft 7 is sleeved with a first ring 13 and a second ring 14, the first ring 13 and the second ring 14 are both located in the supporting cylinder 10, the second ring 14 is located between the first ring 13 and the connecting plate 9, and the first ring 13 and the second ring 14 are both fixedly connected with the sliding seat 4. Preferably, the second ring body 14 is fixedly connected with the support cylinder 10. A friction pair and an annular piston 15 are arranged between the first ring body 13 and the second ring body 14, and the friction pair is positioned between the piston 15 and the second ring body 14. The piston 15 is sleeved outside the driving shaft 7, the piston 15 is in sliding connection with the first ring body 13 so that the piston 15 can slide along the axial direction of the driving shaft 7, at the moment, an annular and closed oil cavity I16 is formed between the first ring body 13 and the piston 15, an oil hole (not shown) enabling the oil cavity I16 to be communicated with the outside is formed in the first ring body 13, and the oil hole is opposite to the opening. The friction pair comprises a dynamic friction plate 17 and a static friction plate 18 which are sleeved outside the driving shaft 7, the dynamic friction plate 17 is fixedly connected with the driving shaft 7, at least two dynamic friction plates 17 are arranged, the static friction plate 18 is one more than the dynamic friction plate 17, the static friction plates 18 and the dynamic friction plates 17 are alternately distributed along the axial direction of the driving shaft 7, and the two static friction plates 18 at the head and the tail are respectively pressed on the first ring body 13 and the second ring body 14. When the grinding wheel device is used, the oil holes are communicated with a hydraulic supply mechanism, hydraulic oil is fed into the first oil cavity 16, the piston 15 is pushed to enable the static friction plate 18 to extrude the dynamic friction plate 17 to axially lock the driving shaft 7, the grinding wheel 6 is enabled to be accurately rotated to a machining position, drifting and vibration are avoided, and working stability and precision are effectively improved.

As shown in fig. 5, the connecting plate 9 is sleeved with a positioning ring 19, the positioning ring 19 is coaxial with the supporting cylinder 10, and the positioning ring 19 is fixedly connected with the supporting cylinder 10. A limiting ring 20 made of elastic material is arranged between the positioning ring 19 and the connecting plate 9, the elastic material can be plastic or spring steel, and the limiting ring 20 is preferably made of spring steel material. The limiting ring 20 is sleeved outside the connecting plate 9, and the inner wall of the limiting ring 20 and the outer wall of the connecting plate 9 are mutually matched circumferential surfaces and are adhered together. The limiting ring 20 is fixedly connected with the positioning ring 19 in a sealing manner, a second oil cavity 21 which is annular and closed is formed between the limiting ring 20 and the positioning ring 19, and the positioning ring 19 is provided with an oil passage 19a which enables the second oil cavity 21 to be communicated with the outside. When the oil-hydraulic locking device is used, hydraulic oil is input into the second oil cavity 21 through the oil passage 19a, so that the limiting ring 20 is elastically deformed to radially hold the connecting plate 9 tightly, the driving shaft 7 is further locked, and the working stability and the working precision are improved.

the spacing ring 20 and the positioning ring 19 are mounted as follows: the limiting ring 20 includes a connecting seat 20a integrally formed on an outer side wall thereof, the connecting seat 20a is annular and coaxial with the limiting ring 20, the connecting seat 20a is located between the positioning ring 19 and the spindle motor 5, the connecting seat 20a is pressed against the positioning ring 19, and the connecting seat 20a is fixedly connected with the positioning ring 19. Preferably, the connecting seat 20a and the positioning ring 19 are fixedly connected by bolts.

The second oil chamber 21 is formed as follows: an annular groove is formed in the outer side wall of the limiting ring 20, and the annular groove is coaxial with the limiting ring 20. The limiting ring 20 forms a seal with the positioning ring 19 through the sealing ring 22, two sealing rings 22 are distributed on two sides of the annular groove, and the second oil cavity 21 is formed among the positioning ring 19, the annular groove and the two sealing rings 22.

Further illustrated, the annular groove extends to the connecting seat 20a and one of the sealing rings 22 is located between the connecting seat 20a and the retaining ring 19. The annular groove extends to the connecting seat 20a, so that the length of the second oil cavity 21 is maximized, the limiting ring 20 is pressed to deform more easily and tightly hold the connecting plate 9, and the stability of the brake driving shaft 7 is further improved. In this embodiment, the inner side wall of the positioning ring 19 and the end surface of the connecting seat 20a are respectively provided with an annular positioning groove for respectively placing the two sealing rings 22.

When the grinding device is used, a workpiece is clamped on the clamp 3, the lifting piece 2 drives the sliding seat 4 to move downwards to enable one grinding wheel 6 to enter a grinding position, and the workpiece is subjected to coarse grinding; after coarse grinding is finished, the lifting piece 2 drives the spindle motor 5 to integrally move upwards through the sliding seat 4, then the rotating mechanism drives the spindle motor to 5180 degrees to swing so that the other grinding wheel 6 is positioned above the grinding position, and then the lifting piece 2 drives the sliding seat 4 to move downwards again so that the other grinding wheel 6 enters the grinding position to perform fine grinding on the workpiece. Under the cooperation of the rotating mechanism, the spindle motor 5 with the two output shafts 5a, the lifting piece 2 and other components, the workpiece can be continuously subjected to rough grinding processing and finish grinding processing through one-time clamping, namely, the processing of the workpiece is completed on the clamp 3 at one time, and the device has the advantages of convenience in operation and high processing precision.

Example two

The basic structure and principle of the second embodiment are the same as those of the first embodiment, and different points are as follows: the rotating mechanism is a rotating cylinder, and the spindle motor 5 is fixed on a spindle of the rotating cylinder through a support plate.

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. A novel vertical grinding machine comprises a machine base (1), a clamp (3) arranged on the machine base (1) and a sliding seat (4) arranged on one side of the clamp (3), wherein the sliding seat (4) is driven by a lifting piece (2) to move up and down in a translation mode, and a spindle motor (5) with a horizontally arranged central line is arranged on the sliding seat (4), and is characterized in that the spindle motor (5) comprises two output shafts (5 a), the two output shafts (5 a) are symmetrically arranged along the center of the spindle motor (5), the center of the spindle motor (5) is positioned on the central line, and a grinding wheel (6) is fixed on each of the two output shafts (5 a); the sliding seat (4) is provided with a rotating mechanism for driving the spindle motor (5) to swing 180 degrees around the central line so as to enable the two grinding wheels (6) to respectively rotate to the clamp (3); the rotating mechanism comprises a driving shaft (7) and a rotating motor (8) for driving the driving shaft (7) to rotate around the axis of the driving shaft, and the driving shaft (7) can only rotate 180 degrees each time; the driving shaft (7) is positioned between the spindle motor (5) and the sliding seat (4), and the axis of the driving shaft (7) is collinear with the central line; the driving shaft (7) is rotationally connected with the sliding seat (4), and the spindle motor (5) is fixedly connected with the driving shaft (7) through a connecting plate (9); a ring body I (13) and a ring body II (14) are sleeved outside the driving shaft (7), the ring body II (14) is positioned between the ring body I (13) and the connecting plate (9), and the ring body I (13) and the ring body II (14) are fixedly connected with the sliding seat (4); a friction pair and an annular piston (15) are arranged between the first ring body (13) and the second ring body (14), and the friction pair is positioned between the piston (15) and the second ring body (14); the piston (15) is sleeved outside the driving shaft (7), an annular and closed oil cavity I (16) is formed between the ring body I (13) and the piston (15), and an oil hole enabling the oil cavity I (16) to be communicated with the outside is formed in the ring body I (13); the friction pair comprises a dynamic friction plate (17) and a static friction plate (18) which are sleeved outside the driving shaft (7), the dynamic friction plate (17) is fixedly connected with the driving shaft (7), at least two dynamic friction plates (17) are provided, the static friction plate (18) is more than the dynamic friction plate (17), the static friction plates (18) and the dynamic friction plates (17) are axially and alternately distributed along the driving shaft (7), and the two static friction plates (18) at the head and the tail are respectively pressed on the first ring body (13) and the second ring body (14); a support cylinder (10) is fixed on the sliding seat (4), the support cylinder (10) is sleeved outside the driving shaft (7), the driving shaft (7) is rotatably connected with the support cylinder (10) through a bearing (11), a second ring body (14) is fixedly connected with the support cylinder (10), and an opening which is right opposite to the oil hole is formed in the side wall of the support cylinder (10); a positioning ring (19) is sleeved outside the connecting plate (9), the positioning ring (19) is fixedly connected with the supporting cylinder (10), a limiting ring (20) made of elastic material is arranged between the positioning ring (19) and the connecting plate (9), the limiting ring (20) is sleeved outside the connecting plate (9), the inner wall of the limiting ring (20) and the outer wall of the connecting plate (9) are mutually matched circumferential surfaces and are adhered together, the limiting ring (20) is fixedly connected with the positioning ring (19) in a sealing manner, an annular and closed oil cavity II (21) is formed between the limiting ring (20) and the positioning ring (19), and an oil duct (19 a) enabling the oil cavity II (21) to be communicated with the outside is arranged on the positioning ring (19); one side of the connecting plate (9) close to the sliding seat (4) is provided with a slot matched with the driving shaft (7), one end of the driving shaft (7) is inserted into the slot, the connecting plate (9) is pressed on an inner ring of the bearing (11), and the connecting plate (9) is fixedly connected with the inner ring of the bearing (11).

2. The novel vertical grinding machine as claimed in claim 1, characterized in that an annular groove is formed in the outer side wall of the limiting ring (20), the annular groove is coaxial with the limiting ring (20), the limiting ring (20) forms a seal with the positioning ring (19) through a sealing ring (22), two sealing rings (22) are distributed on two sides of the annular groove, and the second oil cavity (21) is formed among the positioning ring (19), the annular groove and the two sealing rings (22).

3. The novel vertical grinder as claimed in claim 2, wherein the limit ring (20) comprises a connecting seat (20 a) integrally formed on the outer side wall thereof, the connecting seat (20 a) is annular and coaxial with the limit ring (20), the connecting seat (20 a) is located between the positioning ring (19) and the spindle motor (5), the connecting seat (20 a) is pressed against the positioning ring (19), and the connecting seat (20 a) is fixedly connected with the positioning ring (19).

4. A new vertical grinding machine according to claim 3, characterised in that the annular groove extends to the connecting socket (20 a) and in that one of the sealing rings (22) is located between the connecting socket (20 a) and the retaining ring (19).

5. A new vertical grinding machine according to claim 1, characterized in that the slide (4) is connected with the machine base (1) in a sliding manner.

6. The novel vertical grinder as claimed in claim 4, characterized in that the rotating motor (8) is arranged outside the supporting cylinder (10), and the rotating motor (8) drives the driving shaft (7) to rotate through a transmission mechanism.