CN207239890U - One kind polishing belt sander - Google Patents

Abstract

The utility model discloses a sanding belt machine, which comprises a frame, a moving platform, a transmission mechanism, a deviation correction mechanism, a tensioning mechanism and an annular abrasive belt; the moving platform is two parallel vertical plate structures, and the lower part of the front end of the frame is There is a dust recovery device, there is a driving motor at the lower part of the rear end of the frame, and there are leveling bolts at the bottom of the frame; the transmission mechanism includes a driving wheel, a driven wheel, a turning wheel, a tensioning wheel, and a correction wheel; the driving wheel is connected to the motor through a belt; the ring The shaped abrasive belt is coated on the driving wheel, the correction wheel, the driven wheel, the return wheel and the tension wheel in turn. The abrasive belt machine automatically corrects the deviation of the abrasive belt and automatically adjusts the tension of the abrasive belt through the joint action of the deviation correction cylinder and the tensioning servo motor, so that the grinding force can be kept at a constant value. The thrust cylinder is used to control the movement of the moving platform. The front and rear movement is more conducive to improving efficiency during work, easy to operate, easy to maintain, simple structure of the whole machine, and low manufacturing cost.

Description

A grinding belt machine

technical field

The utility model relates to a sanding belt machine, in particular to a late-stage grinding and polishing equipment for office or daily small stainless steel or electroplated parts, belonging to the technical field of general-purpose processing equipment in the machinery industry.

Background technique

In the field of industrial manufacturing, many workpieces need to have a certain surface texture, such as good surface roughness, gloss, etc., especially some workpieces with complex curved surfaces, such as five-star metal feet of office chairs, faucets, and shower heads. And other hardware parts, after the first processing, the surface finish of these workpieces cannot meet the design requirements, and often require secondary processing such as grinding and polishing before leaving the factory. The existing grinding and polishing methods mainly use a grinding machine for grinding and polishing. It is more common for workers to hold the workpiece and grind it on the grinding machine. If this method is a belt machine, it does not have the ability to adjust the contact force between the workpiece and the abrasive belt. Function, you need to rely on the experience of the workers and the hand-holding strength to adjust the movement by experience, which is laborious and laborious, which causes the fatigue of the workers, makes the quality of the grinding drop significantly, and the technical indicators are difficult to guarantee. Some enterprises use industrial robots with torque sensing fixtures for grinding and polishing, but this method has poor versatility, low service life of fixtures, and high energy consumption.

In view of this, it is necessary to design an intelligent abrasive belt grinding machine for the above problems, which simplifies the design of robot fixtures, accurately controls torque compensation, reduces the burden on industrial robots, and can adapt to various grinding and polishing operations.

Contents of the invention

The purpose of the utility model is to propose a problem in view of the background technology, and to design a grinding belt machine, which automatically corrects the deviation of the belt and automatically adjusts the tension of the belt through the combined action of the deviation correction cylinder and the tensioning servo motor, so that the grinding The force is kept at a constant value, and the thrust cylinder is used to control the forward and backward movement of the braking platform, which is more conducive to improving efficiency during work, easy to operate, easy to maintain, the whole machine has a simple structure and low manufacturing cost.

The technical scheme of the utility model is: a sanding belt machine; including: a frame, a moving platform, a transmission mechanism, a deviation correction mechanism, a tensioning mechanism and an annular abrasive belt; the moving platform is two parallel vertical plates There is a dust recovery device at the lower part of the front end of the frame, a drive motor at the lower part of the rear end of the frame, and leveling bolts at the bottom of the frame; the transmission mechanism includes: a driving wheel, a driven wheel, a turning wheel, a tensioning wheel, and a correction wheel The driving wheel is connected to the motor through a belt; the annular abrasive belt is coated on the driving wheel, the deviation correction wheel, the driven wheel, the turning wheel and the tensioning wheel in turn; it is characterized in that:

The transmission mechanism, deviation correction mechanism and tensioning mechanism are all installed on the moving platform;

The deviation correction mechanism includes: a bracket, a bracket, a 1# cylinder and a 2# cylinder, and a position sensor; the deviation correction wheel is installed on the support through a bearing, and the bottom of the support is provided with a longitudinal hinge ear, and the hinge ear Installed on the bracket through shafts and bearings, the 1# cylinder and 2# cylinder are arranged at both ends of the lower part of the bracket. When the 1# cylinder or the 2# cylinder goes up and down, the bracket drives the deviation correction wheel to follow up and down; the said The position sensor is set on both sides of the abrasive belt on the correction wheel, the position sensor is used to detect the offset of the abrasive belt, and automatically corrects the deviation through the 1# cylinder and the 2# cylinder;

The tensioning mechanism includes: a guide rail, a tensioning wheel bracket, a ball screw, a shaft coupling, a servo motor, and a force sensor; the servo motor is fixedly connected to the frame, and the ball screw is connected to the The motor is connected, the tension wheel is installed on the tension wheel bracket, and the tension wheel bracket is slidingly matched with the guide rail. When the ball screw rotates, the tension wheel moves up and down; the sensing head of the force sensor is in contact with the sand The inner surface of the belt is in contact, and the force sensor is used to sense the tension of the abrasive belt when it is working, and the tension of the abrasive belt is automatically adjusted by the servo motor.

A sanding belt machine as described above is characterized in that: there are horizontal slide plates on both sides of the moving platform, and there are horizontal chute on the frame, and the horizontal slide plate and the horizontal chute can move back and forth relative to each other. slip fit.

A belt sanding machine as described above is characterized in that: the two sides of the upper part of the frame are further provided with push cylinders, and the push cylinders are used to drive the moving platform to move back and forth relative to the frame.

A belt sanding machine as described above is characterized in that: a foot-operated double-position electric control switch is used to drive the telescopic movement of the pushing cylinder.

A belt grinding machine as described above is characterized in that: the position sensor is a non-contact photoelectric sensor, or a contact displacement sensor, preferably a photoelectric sensor.

A belt grinding machine as described above, characterized in that: the linear distance between the position sensor and the correction wheel is not less than 10cm, and the position sensor is located on the correction wheel in the opposite direction of the progress of the abrasive belt.

The beneficial effects of the utility model are:

The belt grinding machine of the utility model can automatically correct the deviation of the belt and automatically adjust the tension of the belt through the joint action of the deviation correction cylinder and the tensioning servo motor, so that the grinding force can be kept at a constant value. The front and rear movement of the braking platform is controlled, which is more conducive to improving efficiency during work, and is easy to operate and maintain. The structure of the whole machine is simple and the manufacturing cost is low.

Description of drawings

Fig. 1 is the overall schematic diagram of the appearance of the utility model embodiment "a belt grinding machine";

Fig. 2 is a schematic diagram of the internal structure of the utility model embodiment "a grinding belt machine";

Fig. 3 is a schematic diagram of the tension adjusting device;

Fig. 4 is a structural schematic diagram of a deviation correction device;

Fig. 5 is a structural schematic diagram of the relationship between the moving platform and the frame;

Fig. 6 is a schematic diagram of the installation position of the horizontal slide plate and the limit block.

Explanation of marks in the attached drawings:

In Fig. 1, Fig. 2, Fig. 5, and Fig. 6: 1—abrasive belt, 2—dust recovery device, 3—frame shell, 4—leveling bolt, 5—access door of moving platform, 6—correcting mechanism, 7 —moving platform, 8—driving wheel, 9—promoting cylinder, 10—tension mechanism, 11—frame, 12—motor, 16—horizontal slide plate, 17—limiting block.

In Figure 4: 601—correcting wheel, 602—bracket, 603—bracket, 604—1# cylinder, 605—hinge ear, 606—bearing of correcting wheel, 607—correcting wheel shaft, 608—2# cylinder, 609—support plate , 610—hinge ear bearing.

In Fig. 2 and Fig. 3: 802—force sensor mounting plate, 803—force sensor, 805—driven wheel, 806—return wheel, 1001—guide rail, 1002—tension wheel bracket, 1003—ball screw bearing seat, 1006— Tensioning pulley, 1007—ball screw, 1008—coupling, 1009—servo motor mount, 1010—servo motor.

Detailed ways

The embodiments of the present invention will be further described below in conjunction with the accompanying drawings. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary, intended to explain the utility model, but not to be construed as a limitation of the utility model, any modifications made within the spirit and principles of the utility model, Equivalent replacements or improvements, etc., should be included within the scope of the claims of the present utility model, and those not mentioned in detail in this technical solution are all known technologies.

Referring to Fig. 1-Fig. 4, the utility model is a grinding belt machine; comprising: a frame 11, a moving platform 7, a transmission mechanism, a deviation correction mechanism 6, a tensioning mechanism 10 and an annular abrasive belt 1; the moving platform 7 It is two parallel vertical plate structures. There is a dust recovery device 2 at the lower part of the front end of the frame 11, a drive motor 12 at the lower part of the rear end of the frame 11, and a leveling bolt 4 at the bottom of the frame 11; the transmission mechanism includes: Wheel 8, driven wheel 805, turning back wheel 806, tensioning wheel 1006, deviation correction wheel 601; the driving wheel 8 is connected with the motor 12 through a belt; the annular abrasive belt 1 is coated on the driving wheel 8, deviation correction wheel 601 in turn , On the driven wheel 805, the return wheel 806 and the tension wheel 1006.

The transmission mechanism, the deviation correction mechanism 6 and the tensioning mechanism 10 are all installed on the moving platform 7; the deviation correction mechanism 6 includes: a bracket 602, a bracket 603, a 1# cylinder 604 and a 2# cylinder 608, and a position sensor The correcting wheel 601 is installed on the bracket 602 through a bearing, and the bottom of the bracket 602 is provided with a longitudinal hinge ear 605, and the hinge ear 605 is installed on the bracket 603 through a shaft and a bearing, and the 1# cylinder 604 and The 2# cylinder 608 is arranged at both ends of the lower part of the support 602. When the 1# cylinder 604 or the 2# cylinder 608 lifts, the support 602 drives the deviation correction wheel 601 to move up and down; the position sensor is arranged on the deviation correction wheel 601. 1, the position sensor is used to detect the offset of the abrasive belt 1, and automatically corrects the deviation through the 1# cylinder 604 and the 2# cylinder 608.

The tensioning mechanism 10 includes: a guide rail 1001, a tensioning wheel bracket 1002, a ball screw 1007, a shaft coupling 1008, a servo motor 1010, and a force sensor 803; the servo motor 1010 is fixedly connected to the frame 11, and the The ball screw 1007 is connected with the servo motor 1010 through a coupling 1008, the tension wheel 1006 is installed on the tension wheel bracket 1002, and the tension wheel bracket 1002 is slidingly matched with the guide rail 1001, when the ball screw 1007 rotates, The tension wheel 1006 moves up and down; the sensor head of the force sensor 803 is in contact with the inner surface of the abrasive belt 1, and the force sensor 803 is used to sense the tension of the abrasive belt 1 when it is working, and automatically adjusts the abrasive belt through the servo motor 1010 1 tension.

There are horizontal slide plates 16 on both sides of the moving platform 7, and a horizontal chute is arranged on the frame 11. The sliding fit between the horizontal slide plate 16 and the horizontal chute can move relative to the front and back, and the uneven plate 16 Limiting blocks 17 are also arranged at both ends.

Described frame 11 top both sides, also be provided with push cylinder 804, and described push cylinder 804 is used for driving described movable platform 7 to move forward and backward relative to frame 11. It is a foot-operated double-station electric control switch that drives the telescopic action of the pushing cylinder 804.

The position sensor is a non-contact photoelectric sensor, or a contact displacement sensor, and the photoelectric sensor is selected in the embodiment of the utility model. The axial linear distance between the position sensor and the deviation correcting wheel 601 is not less than 10 cm, and the position sensor is located on the deviation correcting wheel 601 in the opposite direction along the progress of the abrasive belt 1 . This is conducive to timely detection of the offset of the abrasive belt, so as to better implement the deviation correction of the abrasive belt.

The belt grinding machine of the utility model can automatically correct the deviation of the belt and automatically adjust the tension of the belt through the joint action of the deviation correction cylinder and the tensioning servo motor, so that the grinding force can be kept at a constant value. The front and rear movement of the braking platform is controlled, which is more conducive to improving efficiency during work, and is easy to operate and maintain. The structure of the whole machine is simple and the manufacturing cost is low.

The utility model can be combined with a manipulator to form a working body. The manipulator is used for clamping workpieces and also accepts the control of the control center.

In order to ensure that those skilled in the art can better understand the present invention, the whole polishing process of the present invention is described in detail in combination with the embodiment structure provided by the present invention:

1) The manipulator clamps the workpiece;

2) The control center pre-sets the tension force, which is set by pushing the cylinder and the tension mechanism;

3) Start the abrasive belt machine and start to rotate;

4) The control center controls the manipulator holding the workpiece to approach the belt machine and start grinding;

5) Due to the difference in the grinding degree and grinding force of the workpiece during the grinding process, the tension of the abrasive belt is constantly changing;

6) The force sensor detects the change of the tension degree of the abrasive belt, and transmits the detection data to the control center,

7) After analyzing and processing the data, the control center sends instructions to the servo motor that pushes the cylinder and the tensioning mechanism to adjust the displacement between the moving platform and the fixed frame, and at the same time adjust the tension of the motor pushing the abrasive belt;

8) At the same time of grinding, the deviation correction cylinder is set with a certain holding pressure value. If the abrasive belt deviates, after the position sensor detects it, it will send a command to compensate, that is, the deviation correction is performed through the deviation correction cylinder;

9) Repeat the above process until the polishing is completed;

It should be understood that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention.

Claims (6)

1. one kind polishing belt sander；Including：Rack（11）, moving platform（7）, transmission mechanism, deviation correction mechanism（6）, strainer （10）With ring-type abrasive band（1）；The moving platform（7）It is two pieces of parallel vertical platy structures, rack（11）Front lower portion has powder Dirt retracting device（2）, rack（11）Rear end lower has driving motor（12）, rack（11）Leveling bolt is arranged at bottom（4）；The biography Motivation structure includes：Driving wheel（8）, driven wheel（805）, later take turns（806）, tensioning wheel（1006）, correction wheel（601）；The master Driving wheel（8）Pass through belt and motor（12）Connection；The ring-type abrasive band（1）Driving wheel is coated on successively（8）, correction wheel（601）、 Driven wheel（805）, later take turns（806）And tensioning wheel（1006）On；It is characterized in that：

The transmission mechanism, deviation correction mechanism（6）And strainer（10）It is mounted in moving platform（7）On；

The deviation correction mechanism（6）Including：Stent（602）, bracket（603）, 1# cylinders（604）With 2# cylinders（608）, also have position Sensor；The correction wheel（601）Stent is installed on by bearing（602）On, the stent（602）Lower part be provided with longitudinal direction Cut with scissors ear（605）, the hinge ear（605）Bracket is installed on by axis and bearing（603）On, the 1# cylinders（604）With 2# cylinders （608）It is respectively in stent（602）Lower part both ends, when 1# cylinders（604）Or 2# cylinders（608）During lifting, the stent（602）Band Dynamic correction wheel（601）Servo-actuated lifting；The position sensor is arranged on correction wheel（601）Upper abrasive band（1）Both sides, position sensing Device is used to detect abrasive band（1）Offset, and pass through 1# cylinders（604）With 2# cylinders（608）Automatic deviation correction；

The strainer（10）Including：Guide rail（1001）, tension pulley support（1002）, ball-screw（1007）, shaft coupling （1008）, servomotor（1010）, force snesor（803）；The servomotor（1010）It is connected in rack（11）On, the rolling Ballscrew（1007）Pass through shaft coupling（1008）With servomotor（1010）It is connected, the tensioning wheel（1006）Installed in tensioning wheel Stent（1002）On, tension pulley support（1002）With the guide rail（1001）It is slidably matched, ball-screw（1007）During rotation, Bearing up pulley（1006）Servo-actuated lifting；The force snesor（803）Sensing head and abrasive band（1）Inner surface contacts, force snesor（803） For sensing abrasive band（1）Tensile force during work, and pass through servomotor（1010）Automatically adjust abrasive band（1）Tensile force.

A kind of 2. polishing belt sander as claimed in claim 1, it is characterised in that：The moving platform（7）Two sides have horizontal cunning Plate（16）, the rack（11）On have horizontal concrete chute, the horizontal slide plate（16）Being between horizontal concrete chute can front and rear opposite fortune Dynamic is slidably matched.

A kind of 3. polishing belt sander as claimed in claim 1, it is characterised in that：The rack（11）Top both sides, are additionally provided with Pusher cylinder（804）, the pusher cylinder（804）For driving the moving platform（7）Relative to rack（11）Move forward and backward.

A kind of 4. polishing belt sander as claimed in claim 3, it is characterised in that：Drive the pusher cylinder（804）Expanding-contracting action , it is a foot-operated double-station electric-controlled switch.

A kind of 5. polishing belt sander as claimed in claim 1, it is characterised in that：The position sensor is that non-contact type photoelectricity passes Sensor, or tangent displacement sensor.

A kind of 6. polishing belt sander as described in claim 1 or 5, it is characterised in that：The position sensor and correction wheel（601） Axial air line distance is not less than 10cm, and position sensor is located at correction wheel（601）On along abrasive band（1）The opposite direction of advance On.