CN111702619A - Constant force actuating mechanism and constant force abrasive belt machine - Google Patents
Constant force actuating mechanism and constant force abrasive belt machine Download PDFInfo
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- CN111702619A CN111702619A CN202010618047.XA CN202010618047A CN111702619A CN 111702619 A CN111702619 A CN 111702619A CN 202010618047 A CN202010618047 A CN 202010618047A CN 111702619 A CN111702619 A CN 111702619A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
- B24B21/18—Accessories
- B24B21/20—Accessories for controlling or adjusting the tracking or the tension of the grinding belt
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention relates to the technical field of precision machinery, and provides a constant force actuating mechanism and a constant force belt sander. Through above-mentioned technical scheme, the problem that prior art abrasive band machine can not automatically regulated to the power of polishing of work piece has been solved.
Description
Technical Field
The invention relates to the technical field of precision machinery, in particular to a constant force actuating mechanism and a constant force belt sander.
Background
Along with the development of science and technology in recent years, the machine replaces the manual work and becomes a trend gradually, in the course of working of precision parts, often need polish or polish workpiece surface, the abrasive band machine is often used to polishing process, the abrasive band machine has become the selection of a lot of automatic items of polishing, in practical application, the work piece size that generally needs to polish is different, the position that needs to polish is also different, but because automatic machine does not possess the ability of perception, the power that leads to polishing can not automatically regulated, and then traditional abrasive band machine is difficult to satisfy the working requirement.
Disclosure of Invention
The invention provides a constant-force abrasive belt machine, which solves the problem that the grinding force of an abrasive belt machine on a workpiece cannot be automatically adjusted in the prior art.
The technical scheme of the invention is as follows:
a constant force actuating mechanism comprises a constant force polishing piece and is characterized by also comprising
A position sensor arranged on the constant-force polishing piece and used for sensing the position information of the workpiece,
a first telescopic cylinder, the telescopic end of which is arranged on the constant force polishing piece and is used for driving the constant force polishing piece to move,
the constant force polishing member comprises
A grinding wheel arranged at the telescopic end of the first telescopic cylinder,
one end of the connecting device is connected with the grinding wheel,
the other end of the connecting device is connected with the tensioning wheel.
As a further technical solution, the connecting device comprises
A second telescopic bar, the polishing wheel and the cylinder body of the second telescopic bar move synchronously, the tensioning wheel and the piston rod of the second telescopic bar move synchronously,
the connecting device also comprises
And two connecting shafts are provided, wherein one connecting shaft is connected with the polishing wheel and the cylinder body of the second telescopic bar, and the other connecting shaft is connected with the tensioning wheel and the piston rod of the second telescopic bar.
As a further technical proposal, the connecting shaft is a ball spline shaft,
also comprises
And the ball spline sleeve is sleeved on the connecting shaft.
A constant force belt sander comprises the constant force actuating mechanism of any one of claims 1 to 3, and is characterized by further comprising a mounting frame, wherein a cylinder body of the first telescopic cylinder is arranged on the mounting frame,
the abrasive belt is wound on the grinding wheel and the tension wheel, the tension wheel is used for tensioning the abrasive belt,
a buffer device located beside the grinding wheel.
As a further technical proposal, the method also comprises
A plurality of adjusting wheels which are rotatably arranged on the mounting rack, the abrasive belts are wound on the adjusting wheels, the adjusting wheels are arranged at two sides of the constant-force grinding piece and are used for enabling the abrasive belts at the upper side and the lower side of the grinding wheel to be arranged along a first direction and to be parallel to each other, and the abrasive belts at the upper side and the lower side of the tensioning wheel to be arranged along the first direction and to be parallel to each other,
the driving wheel is wound with the abrasive belt and arranged on the mounting frame and used for driving the abrasive belt to rotate.
As a further technical scheme, a sliding groove is arranged on the mounting frame along the first direction, and the buffering device comprises
A third telescopic cylinder, the cylinder body of which is arranged on the mounting rack,
a connecting plate which is arranged in the chute in a sliding way and is connected with the piston rod of the third telescopic cylinder,
a position adjusting connecting rod arranged on the connecting plate,
and the buffer wheel is arranged on the position adjusting connecting rod.
As a further technical solution, the position adjusting link comprises
A height adjusting member provided on the connecting plate,
a connecting rod arranged on the height adjusting piece in a sliding way along a first direction, one end of the connecting rod is provided with the buffer wheel,
the height adjusting member comprises
A column arranged on the connecting plate and perpendicular to the first direction,
the connecting piece is arranged on the column body, the connecting piece is arranged on the column body in a sliding manner and is locked by the locking piece,
the connecting rod is arranged on the connecting piece in a sliding mode along the first direction and locked by the locking piece.
As a further technical proposal, the method also comprises
And the retaining shell is arranged on the mounting rack and is used for mounting the connecting device in the retaining shell.
As a further technical scheme, one side of the position sensor is provided with a clamping groove, and the constant force belt sander further comprises
The clamping pieces are provided with a plurality of clamping pieces and arranged on the mounting frame, and the position sensors are arranged on the clamping pieces through the clamping grooves.
As a further technical scheme, the number of the grinding wheels is more than or equal to two.
As a further technical proposal, the method also comprises
A boss disposed on the mounting bracket,
a fourth telescopic cylinder, the cylinder body of which is arranged on the boss, wherein one of the adjusting wheels is arranged on a piston rod of the fourth telescopic cylinder,
and the second position sensor is arranged beside the fourth telescopic cylinder and used for sensing the position information of the constant-force grinding piece.
The working principle and the beneficial effects of the invention are as follows:
1. in the invention, the constant force actuating mechanism is used in equipment for polishing workpieces, the workpieces can be polished by using constant force, an abrasive belt is wound on a polishing wheel, the abrasive belt is in contact polishing with the workpieces, the polishing wheel can be subjected to pressure brought by the workpieces, a position sensor is used for sensing position information of the polishing wheel, the position sensor is matched with a first telescopic cylinder, when the pressure transmitted by the workpieces is large, the first telescopic cylinder drives the polishing wheel to contract, when the pressure transmitted by the workpieces is small, the first telescopic cylinder drives the polishing wheel to move forwards to realize constant force polishing, one end of a connecting device is provided with a tension wheel, the other end of the connecting device is provided with the polishing wheel, the connecting device is used for connecting the tension wheel and the polishing wheel into a whole, and the abrasive belts arranged on the polishing wheel and the tension wheel are respectively parallel to each other at two sides of the wheel, so the design can ensure that the abrasive belts wound on, make the abrasive band drop, compare with conventional structure, the structure is more reasonable, and it is effectual to polish, and the abrasive band machine can realize automatically regulated to the power of polishing of work piece.
2. The constant-force belt sander comprises a constant-force executing mechanism, wherein a constant-force grinding part is arranged on an installation frame, a grinding wheel and a tension wheel are respectively and rotatably arranged at two ends of the constant-force grinding part, an abrasive belt is wound on the grinding wheel and the tension wheel, when the abrasive belt is installed, the relative positions of the grinding wheel and the tension wheel at the two ends of the constant-force grinding part cannot change, a workpiece is ground and polished at the abrasive belt on the grinding wheel, a first telescopic cylinder can be a rodless cylinder, the space is saved, the first telescopic cylinder is arranged on the installation frame, an output end of the first telescopic cylinder is connected with the grinding wheel and used for driving the grinding wheel to move along a first direction, the first direction is the telescopic direction of the first telescopic cylinder and can be a horizontal direction, in addition, the output pressure of the first telescopic cylinder can be adjusted by a PLC control servo valve, a required value is set through a human-computer interface or is directly, when the grinding force of the grinding wheel on the workpiece is greater than the output pressure of the first telescopic cylinder, the grinding wheel, the tension wheel and the connecting device are driven by the first telescopic cylinder to retract backwards along the first direction, so that the force acting on the workpiece is reduced, when the grinding force of the grinding wheel on the workpiece is less than the output pressure of the first telescopic cylinder, the grinding wheel, the tension wheel and the connecting device move forwards along the first direction under the drive of the first telescopic cylinder, so that the force acting on the workpiece is increased, and the backward retraction range and the forward range are both within the stroke range set by the connecting device, so that the purpose of grinding the workpiece with constant force is realized by the structure, and the relative positions of the grinding wheel and the tension wheel at the two ends of the connecting device are fixed, so that the structure can not cause the abrasive belt coated on the grinding wheel to be loosened due to the movement of the grinding wheel in the constant-force grinding process, moreover, due to the existence of the first telescopic cylinder, constant force adjustment is more intelligent and precise, and workpieces with various polishing precision can be processed, so that the machining process is more intelligent and mechanical.
Furthermore, when the workpiece to be polished is an intermittent workpiece, when the previous workpiece is polished, the polishing wheel needs to apply a polishing force to the workpiece, the polishing wheel retracts backwards to a part of the stroke under the drive of the first telescopic cylinder, but when the previous workpiece is polished and the next workpiece is not yet polished, the polishing wheel returns to the initial position under the drive of the first telescopic cylinder due to no pressure at the polishing wheel, when the next workpiece moves to the polishing position of the polishing wheel, the next workpiece directly hits against the side surface of the polishing wheel, so that in order to enable the constant-force polisher to polish the intermittent workpiece, the buffer device is arranged on the mounting frame and is arranged on one side of the polishing wheel, the buffer device is touched when the workpiece comes, the polishing wheel can be prevented from directly touching the workpiece, when the workpiece reaches a proper position, the buffer device retracts, the polishing wheel is contacted with the workpiece, and the workpiece can be effectively prevented from directly hitting against the polishing wheel, if the constant-force belt sander is designed to polish the last workpiece, the polishing wheel retracts completely, the next workpiece is polished and extends out again, the time is too long, and the time is not controlled well, so that the constant-force belt sander can effectively solve the problem that discontinuous workpieces are polished by constant force, and the application range of the constant-force belt sander can be enlarged.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of a constant force belt sander of the present invention;
FIG. 2 is a schematic structural view of a constant force actuator according to the present invention;
FIG. 3 is a schematic structural view of the constant force belt sander of the present invention;
FIG. 4 is a schematic structural view of a blocking shell of the constant-force belt sander;
FIG. 5 is a schematic structural view of the constant force belt sander of the present invention;
in the figure: 1-constant force grinding part, 2-position sensor, 3-first telescopic cylinder, 4-grinding wheel, 5-connecting device, 6-tensioning wheel, 7-second telescopic rod, 8-connecting shaft, 9-mounting frame, 10-abrasive belt, 11-buffer device, 12-adjusting wheel, 13-driving wheel, 14-sliding chute, 15-third telescopic cylinder, 16-connecting plate, 17-position adjusting connecting rod, 18-buffer wheel, 19-height adjusting part, 20-connecting rod, 21-cylinder, 22-connecting part, 23-blocking shell, 24-clamping part, 25-clamping groove, 26-ball spline sleeve, 27-fourth telescopic cylinder, 28-second position sensor, 29-air nozzle, 30-temperature sensor, 31-collecting groove, 32-boss.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.
Example 1
As shown in fig. 1 to 4, the present embodiment proposes
A constant force actuating mechanism comprises a constant force polishing part 1 and further comprises
A position sensor 2 arranged on the constant-force grinding piece 1 and used for sensing the position information of the workpiece,
a first telescopic cylinder 3, the telescopic end of which is arranged on the constant force polishing piece 1 and is used for driving the constant force polishing piece 1 to move,
the constant force grinding member 1 comprises
A polishing wheel 4, the polishing wheel 4 is arranged at the telescopic end of the first telescopic cylinder 3,
one end of the connecting device 5 is connected with the grinding wheel 4,
the other end of the tension wheel 6 and the connecting device 5 is connected with the tension wheel 6.
In this embodiment, the constant force actuator is used in an apparatus for polishing a workpiece, the workpiece can be polished by using a constant force, an abrasive belt 10 is wound on a polishing wheel 4, the abrasive belt 10 is in contact with the workpiece for polishing, the polishing wheel 4 can be subjected to pressure caused by the workpiece, a position sensor 2 is used for sensing position information of the polishing wheel 4, the position sensor 2 is matched with a first telescopic cylinder 3, when the pressure transmitted by the workpiece is large, the first telescopic cylinder 3 drives the polishing wheel 4 to contract, when the pressure transmitted by the workpiece is small, the first telescopic cylinder 3 drives the polishing wheel 4 to move forward, constant force polishing is realized, one end of a connecting device 5 is provided with a tension wheel 6, one end of the connecting device is provided with the polishing wheel 4, the connecting device 5 is used for connecting the tension wheel 6 and the polishing wheel 4 into a whole, and the abrasive belts 10 arranged on the polishing wheel 4 and the tension wheel 6 are respectively parallel to each other at two sides of the wheel, so as to design, it can be ensured that the abrasive belt 10 And the abrasive belt 10 falls off, compared with the conventional structure, the abrasive belt grinding machine has the advantages of more reasonable structure and good grinding effect, and the grinding force of the abrasive belt machine on a workpiece can be automatically adjusted.
Further, the connecting means 5 comprise
The second telescopic bar 7, the grinding wheel 4 and the cylinder body of the second telescopic bar 7 move synchronously, the tension wheel 6 and the piston rod of the second telescopic bar 7 move synchronously,
the connecting device 5 further comprises
And two connecting shafts 8 are provided, wherein one connecting shaft connects the grinding wheel 4 and the cylinder body of the second telescopic bar 7, and the other connecting shaft connects the tension wheel 6 and the piston rod of the second telescopic bar 7.
In this embodiment, a second telescopic rod 7 is arranged along the first direction, the second telescopic rod 7 may be a rodless cylinder, the abrasive belt 10 is installed on the polishing wheel 4 and the tensioning wheel 6, the second telescopic cylinder is pushed out outwards to drive the connecting shafts 8 at two ends of the second telescopic cylinder to be pushed out outwards, so that the distance between the polishing wheel 4 connected with the connecting shaft 8 and the tensioning wheel 6 is increased, the polishing wheel 4 is tensioned with the abrasive belt 10 on the tensioning wheel 6, and the polishing wheel 4, the connecting device 5 and the tensioning wheel 6 are integrated. In addition, in the process of polishing the workpiece, the relative positions of the tensioning wheel 6 and the polishing wheel 4 cannot be changed, so that the auxiliary sensor and the first telescopic cylinder 3 can realize constant-force polishing together, and the abrasive belt 10 can be conveniently mounted and dismounted due to the existence of the second telescopic rod 7.
Further, the connecting shaft 8 is a ball spline shaft.
Also comprises
And the ball spline housing 26 is sleeved on the connecting shaft 8, and the ball spline housing 26 is sleeved on the connecting shaft 8.
In this embodiment, the connecting shaft 8 is designed as a ball spline shaft, the ball spline shaft is used in cooperation with the ball spline housing 26, balls loaded in the ball spline housing 26 are used, in a rolling groove of precision grinding, smooth rolling and torque transmission are performed simultaneously, the high sensitivity is achieved, the connecting shaft 8 is used for connecting the grinding wheel 4 or the tension wheel 6, the abrasive belt 10 coated outside the tension wheel 6 also rotates at a high speed, the grinding wheel 4 also needs a large load capacity when grinding, the connecting shaft 8 is designed as a ball spline shaft which can resist vibration impact, the positioning precision is high, and the function of transmitting power of the telescopic cylinder can be well achieved.
A constant force belt sander comprises a constant force actuating mechanism shown in figure 1 and further comprises
A mounting frame 9, the cylinder body of the first telescopic cylinder 3 is arranged on the mounting frame 9,
a sanding belt 10, the sanding belt 10 is wound on the grinding wheel 4 and the tension wheel 6, the tension wheel 6 is used for tensioning the sanding belt 10,
and the buffer device 11, wherein the buffer device 11 is positioned beside the grinding wheel 4.
In the embodiment, the constant-force grinding part 1 is arranged on the mounting frame 9, the grinding wheel 4 and the tension wheel 6 are respectively and rotatably arranged at two ends of the connecting device 5, the abrasive belt 10 is wound on the grinding wheel 4 and the tension wheel 6, when the abrasive belt 10 is mounted, the relative position of the grinding wheel 4 and the tension wheel 6 cannot be changed, a workpiece is ground and polished at the abrasive belt 10 on the grinding wheel 4, the first telescopic cylinder 3 can be a rodless cylinder, the space is saved, the output end of the first telescopic cylinder is connected with the grinding wheel 4 and is used for driving the grinding wheel 4 to move along a first direction, the first direction is the telescopic direction of the first telescopic cylinder 3 and can be a horizontal direction, in addition, the output pressure of the first telescopic cylinder 3 can be adjusted by controlling a servo valve through a PLC (programmable logic controller) and can be set by setting a required value through a human-machine interface or directly communicating with automatic grinding equipment, when the grinding force for the workpiece at the position of the grinding wheel 4 is greater than the output pressure of the, the grinding wheel 4, the tension wheel 6 and the connecting device 5 are driven by the first telescopic cylinder 3 to retract backwards along the first direction, so that the force acting on the workpiece is reduced, when the grinding force on the workpiece at the grinding wheel 4 is smaller than the output pressure of the first telescopic cylinder 3, the whole of the grinding wheel 4, the tension wheel 6 and the connecting device 5 is driven by the first telescopic cylinder 3 to advance along the first direction, so that the force acting on the workpiece is increased, the backward retraction range and the forward range are both within the stroke range set by the connecting device 5, and by the structure, the purpose of grinding the workpiece with constant force is achieved, and the relative positions of the grinding wheel 4 and the tension wheel 6 at two ends of the connecting device 5 are fixed, so that the structure can be used for grinding the workpiece with constant force without loosening an abrasive belt 10 on the grinding wheel 4 due to the movement of the grinding wheel 4, and due to the existence of the first telescopic cylinder 3, the constant force adjustment is more intelligent and accurate, and workpieces with various polishing precisions can be processed, so that the processing process is more intelligent and mechanical.
Further, when the workpiece to be polished is an intermittent workpiece, when the previous workpiece is polished, the polishing wheel 4 needs to apply a polishing force to the workpiece, the polishing wheel 4 retracts backwards to a part of stroke under the driving of the first telescopic cylinder 3, but when the previous workpiece is polished and the next workpiece is not yet polished, because the polishing wheel 4 has no pressure, the polishing wheel 4 returns to the initial position under the driving of the first telescopic cylinder 3, when the next workpiece moves to the polishing position of the polishing wheel 4, the next workpiece directly hits the side surface of the polishing wheel 4, so that in order to enable the constant-force polishing machine to polish the intermittent workpiece, the buffer device 11 is arranged on the mounting frame 9 and is arranged on one side of the polishing wheel 4, the buffer device 11 is touched first when the workpiece comes, the polishing wheel 4 can be prevented from directly touching the workpiece, and when the workpiece reaches a proper position, the buffer device retracts, the grinding wheel 4 is in contact with the workpiece, the workpiece can be effectively prevented from directly colliding with the grinding wheel 4, if the grinding wheel 4 is designed to be completely retracted after the last workpiece is ground, the next workpiece is ground and then extended, the time is too long, and the time is not controlled well, so that the problem that the discontinuous workpiece is ground under the constant force can be effectively solved by designing the buffer piece, and the application range of the constant-force abrasive belt machine can be enlarged.
Further, also comprises
A plurality of adjusting wheels 12 which are rotatably arranged on the mounting frame 9, abrasive belts 10 are wound on the adjusting wheels 12, the adjusting wheels 12 are arranged at two sides of the constant-force grinding part 1, the abrasive belts 10 at the upper side and the lower side of the grinding wheel 4 are arranged along a first direction and are parallel to each other, and the abrasive belts 10 at the upper side and the lower side of the tension wheel 6 are arranged along the first direction and are parallel to each other,
a driving wheel 13, around which the abrasive belt 10 is wound, is arranged on the mounting frame 9 for driving the abrasive belt 10 to rotate.
In the embodiment, a plurality of adjusting wheels 12 and a driving wheel 13 are arranged on the mounting frame 9, the diameter of the driving wheel 13 is larger than that of the adjusting wheels 12, the driving is more labor-saving, the driving wheel 13 and the adjusting wheels 12 are both coated with abrasive belts 10, the driving motor drives the driving wheel 13 to rotate so as to drive the abrasive belts 10 to rotate, the arrangement of the plurality of adjusting wheels 12 lengthens the rotating path of the abrasive belts 10, so that the abrasive belts 10 can better dissipate heat, the adjusting wheels 12 are arranged on both sides of the connecting device 5, so that the abrasive belts 10 on the upper side and the lower side of the grinding wheel 4 are arranged along a first direction and are parallel to each other, the abrasive belts 10 on the upper side and the lower side of the tension wheel 6 are arranged along the first direction and are parallel to each other, the first direction can be a horizontal direction, so that the coating angle of the abrasive belts 10 cannot be out of, the resulting slack in belt 10 allows the overall length of belt 10 to remain constant regardless of the movement of tensioning wheel 6 and sanding wheel 4, thereby providing a smoother sanding process.
Furthermore, a sliding groove 14 is arranged on the mounting rack 9 along the first direction, and the buffer device 11 comprises
A third telescopic cylinder 15, the cylinder body of the third telescopic cylinder 15 is arranged on the mounting frame 9,
a connecting plate 16 which is arranged in the chute 14 in a sliding way and is connected with a piston rod of the third telescopic cylinder 15,
a position adjusting connecting rod 17 arranged on the connecting plate 16,
and a buffer wheel 18 provided on the position adjusting link 17.
In this embodiment, the buffer wheel 18 rotates perpendicular to the first direction, that is, the rotation direction is tangential to the transmission direction of the workpiece, and forms rolling friction with the workpiece, so that the friction force between the buffer wheel 18 and the workpiece can be reduced, the material can be soft rubber, and scratch to the workpiece can be reduced, the mounting frame 9 is provided with a sliding groove 14 along the first direction, the connecting plate 16 is arranged in the sliding groove 14 in a penetrating manner, the sliding groove 14 can guide the sliding direction of the connecting plate 16, the position adjusting connecting rod 17 is used for connecting the connecting plate 16 and the buffer wheel 18, the connecting plate 16 can drive the position adjusting connecting rod 17 and the buffer wheel 18 thereon to move along the first direction under the driving of the third telescopic cylinder 15, the third telescopic cylinder 15 can be a rodless cylinder, so that the space is saved, the normal position of the buffer wheel 18 is located 2-10mm in front of the position of the polishing wheel 4 driven by the connecting device 5, and can contact the, the buffer function is achieved, when the workpiece moves to a proper position, the buffer wheel 18 is driven by the third telescopic cylinder 15 to contract backwards, and the workpiece contacts the grinding wheel 4 to be ground.
Further, the position adjusting link 17 includes
A height adjusting member 19 provided on the connecting plate 16,
a connecting rod 20 arranged on the height adjusting piece 19 in a sliding way along a first direction, one end of the connecting rod is provided with a buffer wheel 18,
the height-adjusting member 19 comprises
A column 21, provided on the connection plate 16, arranged perpendicularly to the first direction,
a connecting piece 22 arranged on the column body 21, the connecting piece 22 is arranged on the column body 21 in a sliding way and is locked by a locking piece,
the connecting rod 20 is slidably disposed on the connecting member 22 in a first direction and locked by the locking member.
In this embodiment, position control connecting rod 17 includes connecting rod 20 and height control spare 19, be provided with buffering wheel 18 on the connecting rod 20, connecting rod 20 is even on the connecting piece 22 of height control spare 19, be equipped with the through-hole on the connecting piece 22, wear to establish cylinder 21 in the through-hole, connecting piece 22 can slide along cylinder 10, adjust a suitable height, lock with the retaining member, the retaining member can be the bolt, just so can realize height control function of height control spare 19, can drive connecting rod 20 and buffering wheel 18 on it and adjust suitable height, further realize the buffering direction function to the work piece of different thickness or height, increase this abrasive band machine's application scope.
Further, also comprises
A shield 23, provided on the mounting frame 9, for mounting the connecting device 5 therein.
In this embodiment, the retaining shell 23 is disposed on the mounting frame 9, the retaining shell 23 is fixed to the mounting frame 9 by bolts, and the mounting position of the retaining shell 23 is outside the connecting device 5, so that the connecting device 5 can be shielded, the appearance of the whole machine is beautiful, and the operation of the connecting device 5 can be prevented from being affected by the environment.
Furthermore, one side of the position sensor 2 is provided with a clamping groove 25, and the constant force belt sander also comprises
A plurality of clamping pieces 24 are arranged on the mounting frame 9, and the position sensor 2 is arranged on the clamping pieces 24 through clamping grooves 25.
In this embodiment, the position sensor 2 is inserted into the clamping piece 24 through the clamping groove 25 thereon, so that the installation is convenient, and the position sensor can be detached or replaced at any time.
Further, the number of the grinding wheels 4 is more than or equal to two.
In this embodiment, the number of the grinding wheels 4 is greater than or equal to two, so that the abrasive belt on the grinding wheels 4 can be ground in a plane, and can also be ground in a straight line, so that the grinding area is larger, and the types of workpieces which can be ground are more.
Example 2
As shown in fig. 5, including the constant force actuator shown in fig. 1, on the basis of the constant force belt sander of embodiment 1,
further, also comprises
A boss 32, which is provided on the mounting frame 9,
a fourth telescopic cylinder 27, the cylinder body of which is arranged on a boss 32, wherein one adjusting wheel 12 is arranged on the mounting frame 9 in a sliding way and is arranged on a piston rod of the fourth telescopic cylinder 27,
and the second position sensor 28 is arranged beside the fourth telescopic cylinder 27 and used for sensing the position information of the constant-force grinding piece 1.
In this embodiment, a boss 32 is disposed on the mounting frame 9, a cylinder body of the fourth telescopic cylinder 27 is disposed on the boss 32, a second position sensor 28 is disposed beside the fourth telescopic cylinder 27, the second position sensor 28 can be mounted on the mounting frame 9 or on the boss 32, the second position sensor 28 can sense position information of the constant force polishing member 1, specifically, can sense position information of the second telescopic cylinder 7, in order to achieve constant force polishing in the polishing process, the second telescopic cylinder 7 can be displaced, after the second position sensor 28 senses the displacement, the fourth telescopic cylinder 27 is started to drive the adjusting wheel 12 on the fourth telescopic cylinder 27 to move upwards or downwards, so that the design can be matched with the constant force polishing member 1 to further prevent the abrasive belt 10 from loosening in the moving process of the constant force polishing member 1, and prevent the constant force belt machine from working for a long time, which results in that the tensioning of the sanding belt 10 by means of the second telescopic cylinder 7 alone is not sufficient, and the provision of this fourth telescopic cylinder 27 can assist in tensioning the sanding belt 10, increasing the machine life and reducing the replacement cycle of the sanding belt 10.
Further can set up air jet 29 and temperature sensor 30 on drive wheel 13's next door, when temperature sensor 30 senses abrasive band 10 and polishes the in-process high temperature, air jet 29 will be started, cool down abrasive band 10, can effectually prevent to cause the damage to the work piece because abrasive band 10's high temperature, this air jet 29 can also clean the abrasive band, the piece of polishing on abrasive band 10 clears up, so correspond, in the downside of mounting bracket 9, also be the downside of drive wheel 13, set up piece collecting vat 31, make holistic equipment function more perfect like this, the effect of polishing is better.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A constant force actuating mechanism comprises a constant force polishing piece (1) and is characterized by also comprising
A position sensor (2) arranged on the constant-force grinding piece (1) and used for sensing the position information of the workpiece,
a first telescopic cylinder (3), the telescopic end of which is arranged on the constant-force polishing piece (1) and is used for driving the constant-force polishing piece (1) to move,
the constant-force grinding part (1) comprises
A grinding wheel (4), wherein the grinding wheel (4) is arranged at the telescopic end of the first telescopic cylinder (3),
one end of the connecting device (5) is connected with the grinding wheel (4),
and the other end of the connecting device (5) is connected with the tensioning wheel (6).
2. Constant force actuator according to claim 1, wherein the connection means (5) comprise
A second telescopic bar (7), the grinding wheel (4) and the cylinder body of the second telescopic bar (7) move synchronously, the tension wheel (6) and the piston rod of the second telescopic bar (7) move synchronously,
the connecting device (5) further comprises
And two connecting shafts (8) are provided, wherein one connecting shaft connects the grinding wheel (4) and the cylinder body of the second telescopic bar (7), and the other connecting shaft connects the tensioning wheel (6) and the piston rod of the second telescopic bar (7).
3. The constant-force actuator according to claim 2, wherein the connecting shaft (8) is a ball spline shaft,
also comprises
The ball spline housing (26) is sleeved on the connecting shaft (8) and used for being arranged on the mounting frame (9).
4. A constant force belt sander, comprising the constant force actuator according to any one of claims 1 to 3, further comprising
A mounting rack (9), wherein the cylinder body of the first telescopic cylinder (3) is arranged on the mounting rack (9),
an abrasive belt (10), wherein the abrasive belt (10) is wound on the grinding wheel (4) and the tension wheel (6), the tension wheel (6) is used for tensioning the abrasive belt (10),
a damping device (11), said damping device (11) being located beside said grinding wheel (4).
5. The constant force belt sander of claim 4, further comprising
A plurality of adjusting wheels (12) which are rotatably arranged on the mounting rack (9), the abrasive belts (10) are wound on the adjusting wheels (12), the adjusting wheels (12) are arranged on two sides of the constant-force grinding piece (1) and are used for enabling the abrasive belts (10) on the upper side and the lower side of the grinding wheel (4) to be arranged along a first direction and to be parallel to each other and enabling the abrasive belts (10) on the upper side and the lower side of the tension wheel (6) to be arranged along the first direction and to be parallel to each other,
and the driving wheel (13) is wound with the abrasive belt (10) and arranged on the mounting frame (9) and is used for driving the abrasive belt (10) to rotate.
6. A constant-force belt sander as set forth in claim 5, characterized in that said mounting frame (9) is provided with a runner (14) in a first direction, and said damping means (11) comprises
A third telescopic cylinder (15), the cylinder body of the third telescopic cylinder (15) is arranged on the mounting rack (9),
a connecting plate (16) which is arranged in the sliding groove (14) in a sliding way and is connected with a piston rod of the third telescopic cylinder (15),
a position adjusting link (17) provided on the connecting plate (16),
and a buffer wheel (18) arranged on the position adjusting connecting rod (17).
7. A constant-force belt sander according to claim 6, characterized in that the position-adjusting link (17) comprises
A height adjusting member (19) provided on the connecting plate (16),
a connecting rod (20) which is arranged on the height adjusting piece (19) in a sliding way along a first direction, one end of the connecting rod is provided with the buffer wheel (18),
the height adjusting member (19) comprises
A column (21) arranged on the connecting plate (16) and arranged perpendicular to the first direction,
connecting piece (22), set up on cylinder (21), connecting piece (22) slide to set up on cylinder (21), by retaining member locking, connecting rod (20) slide along first direction and set up on connecting piece (22), by retaining member locking.
8. The constant force belt sander of claim 7, further comprising
A shield shell (23) provided on the mounting frame (9) for mounting the connecting device (5) therein.
9. The constant-force belt sander according to claim 8, wherein one side of the position sensor (2) is provided with a snap groove (25), the constant-force belt sander further comprising
The clamping pieces (24) are arranged on the mounting rack (9), and the position sensors (2) are arranged on the clamping pieces (24) through the clamping grooves (25).
10. The constant-force belt sander according to any one of claims 5 to 9, wherein the number of grinding wheels (4) is two or more.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010618047.XA CN111702619B (en) | 2020-06-30 | 2020-06-30 | Constant force actuating mechanism and constant force abrasive belt machine |
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| CN202010618047.XA CN111702619B (en) | 2020-06-30 | 2020-06-30 | Constant force actuating mechanism and constant force abrasive belt machine |
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| CN111702619A true CN111702619A (en) | 2020-09-25 |
| CN111702619B CN111702619B (en) | 2021-11-23 |
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| CN114986340A (en) * | 2022-06-02 | 2022-09-02 | 武汉数字化设计与制造创新中心有限公司 | Force-rotation speed cooperative control full-characteristic abrasive belt grinding and polishing system and method |
| CN114986343A (en) * | 2022-06-29 | 2022-09-02 | 成都西交轨道交通技术服务有限公司 | Rigid contact line rapid polishing system and method |
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| CN111702619B (en) | 2021-11-23 |
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