CN104942690A - Elastic polishing equipment and method for special-shaped workpieces - Google Patents

Abstract

An elastic polishing device for a special-shaped workpiece comprises a base frame, a main control circuit, at least 4 polishing units and driving motors, wherein the main control circuit stores three-dimensional data of the special-shaped workpiece, the driving motors are equal to the polishing units in number, the polishing units are symmetrically arranged on two sides of the base frame and form symmetrical lines, and the driving mechanisms drive the polishing units to be close to or far away from the symmetrical lines under the control of the main control circuit so as to adapt to different sizes of different parts of the workpiece; the polishing unit comprises a support, a polishing wheel and a spring, wherein the spring enables the polishing wheel to elastically move on the support, and the motor is connected with the support and drives the support to move relative to the symmetry line. The invention has the advantages that: each polishing unit can be flexibly and conveniently controlled, and the polishing device has the advantages of simple structure and capability of polishing special-shaped workpieces well.

Description

Elastic polishing equipment and method for special-shaped workpieces

technical field

The invention relates to a polishing device, in particular to an elastic polishing device and method capable of polishing special-shaped workpieces.

Background technique

With the improvement of people's living standards and the innovation and development of engineering technology, higher and higher requirements are placed on the surface quality of the required parts and materials. How to polish the material surface efficiently, with high quality and without pollution has become a key exploration. direction. Among them, due to the irregular appearance of special-shaped workpieces, the polishing process usually requires multiple clamping processes or manual completion, resulting in low efficiency, unstable quality, and high processing costs.

Polishing machines, also known as grinders, are often used for mechanical grinding, polishing and waxing. Its working principle is: the motor drives the sponge or wool polishing disc installed on the polishing machine to rotate at high speed. Due to the joint action of the polishing disc and the polishing agent and friction with the surface to be polished, it can achieve the effect of removing paint surface pollution, oxide layer and shallow marks. Purpose. For special-shaped metal parts, hardware products, plastic parts and other special-shaped workpieces that require surface deburring, descaling, deburring, and improving the surface brightness of the workpiece, traditional polishing equipment or manual grinding may not be able to handle inner holes and gaps , corners and other parts. In the prior art, there are also special grinding stones, polishing blocks, brown corundum abrasives, white corundum abrasives, and silicon carbide abrasives that are selected and customized according to the shape and dimensions of the workpiece. , high-alumina porcelain abrasives, high-frequency porcelain abrasives, steel ball abrasives and other polishing abrasives, add appropriate amount of water and polishing aids, let the workpiece rotate and roll in the working barrel together with the grinding stone and polishing aids, so that the grinding The stone rubs on the surface of the workpiece and performs a small amount of cutting, which can clean the attachments such as burrs, oxide scales, and flashes on the surface of the workpiece. And this polishing method usually needs to be combined with other equipment to achieve the required requirements, such as three-dimensional vibration polishing machine, eddy current polishing machine, centrifugal polishing machine, drum polishing machine and other processes. The entire polishing process is cumbersome, requires a long polishing time, and the polishing is uneven.

For example, the Chinese invention patent with the publication date of August 12, 2009, the application number is 200910037777.4, and the title is "A Method and Device for Polishing Special-shaped Ceramic Tile or Stone", which includes the linear conveying process of special-shaped ceramic tile or stone, the process of pair conveying The multi-stage polishing process of special-shaped tiles or stones, and the screw rods that control the downward movement of the polishing wheels at all levels, by rotating the corresponding screw rods to control the up and down movement of the corresponding polishing wheel bases at all levels, thereby controlling Each level of the polishing wheel moves down the amount of chips to polish shaped tiles or stone. The special-shaped polishing equipment with this structure needs to place the special-shaped workpiece flat on the conveyor belt during the polishing process, and then polish the upper surface of the workpiece. Therefore, the polishing machine with this structure is applied to workpieces with only one special-shaped curved surface. Its scope of application narrow.

Contents of the invention

The technical problem solved by the present invention is to provide an elastic polishing device and method for special-shaped workpieces by overcoming the above-mentioned shortcomings in the prior art.

In order to solve the problems of the technologies described above, the present invention adopts the following technical measures:

An elastic polishing device for special-shaped workpieces, comprising a pedestal, a main control circuit storing three-dimensional data of the special-shaped workpiece, at least 4 polishing units and driving motors equal in number to the polishing units, and the polishing units are symmetrically arranged on the pedestal Both sides form a line of symmetry, and the drive mechanism drives the polishing unit under the control of the main control circuit to approach or leave the line of symmetry to adapt to different sizes of different parts of the workpiece; The upper elastic movable spring, the motor is connected with the bracket, and drives the bracket to move relative to the line of symmetry.

The present invention can also be further perfected by the following technical measures:

As a further improvement, it also includes a three-dimensional scanning device for scanning the three-dimensional data of the special-shaped workpiece, and the data generated by the three-dimensional scanning device is transmitted to the main control circuit so that the driving motor drives the polishing unit to move relative to the line of symmetry.

As a further improvement, it includes a hardness detection device for detecting workpieces and a motor driving the polishing wheel to rotate, and the main control circuit drives the motor of the polishing wheel to rotate at different speeds according to different hardness data detected by the hardness detection device.

As a further improvement, when the special-shaped workpiece is made of metal, the speed of the polishing wheel is 2000-3000 r/min, and when the special-shaped workpiece is made of plastic or ceramic material, the speed of the polishing wheel is 1000-2000 r/min /min.

As a further improvement, the special-shaped workpiece is clamped and pushed into the polishing unit by manual or robotic arms for in-and-out and rotary motion polishing.

As a further improvement, it includes a pressure detection sensor used to detect the pressure value of the special-shaped workpiece during polishing, the pressure sensor transmits the detected data to the main control circuit, and the main control circuit drives the The driving motor rotates to drive the polishing unit close to or away from the symmetry line so that the polishing unit can provide constant pressure polishing for the special-shaped workpiece.

As a further improvement, the material of the polishing wheel is sponge, linen or flannelette.

As a further improvement, the special-shaped workpiece is metal, plastic or ceramics.

As a further improvement, there are an even number of the driving units, and they are arranged symmetrically around the symmetrical line.

An elastic polishing method for special-shaped workpieces, applied to the above elastic polishing equipment, comprising the following steps:

(1) The scanning device scans the three-dimensional data of the special-shaped workpiece and transmits it to the main control circuit;

(2) The main control circuit drives the drive motor according to the three-dimensional data of the special-shaped workpiece to adjust the polishing unit to move relative to the symmetry line to adapt to the shape of the workpiece;

(3) The hardness detection device detects the hardness of the special-shaped workpiece and transmits the hardness data to the main control circuit;

(4) According to the hardness of the special-shaped workpiece, the main control circuit drives the motor of the polishing wheel to rotate and polish at a specific speed corresponding to the hardness of the special-shaped workpiece.

Due to the adoption of the above technical solutions, the present invention has the following beneficial technical effects:

1. The present invention includes at least 4 polishing units, and the polishing units are arranged symmetrically on both sides of the base frame to form a line of symmetry. Therefore, the special-shaped workpiece is set between the polishing units, and the special-shaped workpiece is polished when the polishing wheel rolls. Multiple surfaces of special-shaped workpieces can be uniformly polished. At the same time, the driving mechanism drives the polishing unit close to or away from the symmetry line under the control of the main control circuit to adapt to different sizes of different parts of the workpiece.

2. The present invention uses a three-dimensional scanning device to scan the three-dimensional data of the special-shaped workpiece, and the data generated by the three-dimensional scanning device is transmitted to the main control circuit so that the driving motor drives the polishing unit to move relative to the symmetrical line. By using a three-dimensional scanning device, the polishing unit can move more precisely.

3. In the present invention, by adding a hardness detection device and a pressure sensor, they are respectively used to detect the hardness of the workpiece and the pressure value during polishing of the special-shaped workpiece. The main control circuit drives the motor of the polishing wheel to rotate at different speeds according to different hardness data detected by the hardness detection device. The pressure sensor transmits the detected data to the main control circuit, and the main control circuit drives the driving motor to rotate according to the data provided by the pressure sensor to drive the polishing unit close to or away from the symmetry line so that the polishing unit can give Shaped workpieces provide constant pressure polishing. Since the polishing wheel can set a more reasonable rotational speed and distance of the polishing wheel according to the detected hardness and pressure, the polishing effect is better.

Description of drawings

Accompanying drawing 1 is the assembly schematic diagram of an embodiment of the elastic polishing equipment for special-shaped workpieces of the present invention.

Accompanying drawing 2 is a circuit control block diagram of an embodiment of the present invention.

Accompanying drawing 3 is the structural representation of unit A1 and A4 in Fig. 1.

Accompanying drawing 4 is a schematic diagram of workpiece processing of units A1 and A4 in Fig. 1 .

Accompanying drawing 5 is the process flow diagram of the elastic polishing method for special-shaped workpieces of the present invention.

Reference signs:

1. Polishing wheel; 2. Bearing; 3. Bracket; 4. Shaft; 5. First transmission wheel; 6. Spring; 7. Special-shaped workpiece; 8. Second transmission wheel; 9. Transmission belt; 11. Elasticity of special-shaped workpiece Polishing equipment; A1-A6. Polishing units.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 4, an elastic polishing device 11 for a special-shaped workpiece includes a pedestal, a main control circuit that stores the three-dimensional data of the special-shaped workpiece 7, at least 4 polishing units, and drives equal to the number of polishing units. The motor and the polishing unit are arranged symmetrically on both sides of the pedestal to form a line of symmetry, and the driving mechanism drives the polishing unit to approach or move away from the line of symmetry under the control of the main control circuit to adapt to different sizes of different parts of the workpiece. The special-shaped workpiece 7 is clamped and pushed into the polishing unit by manual or mechanical hands to perform in-and-out and rotary motion polishing. The special-shaped workpiece 7 is metal, plastic or ceramics. There are an even number of the driving units, and they are arranged symmetrically around the symmetrical line.

Wherein, an even number of polishing units is provided, and the polishing units are arranged symmetrically on both sides of the base frame to form a line of symmetry. Therefore, when a workpiece with a different shape is pushed into the polishing unit for in-and-out and rotational polishing, multiple surfaces of the workpiece 7 with a different shape can be uniformly polished. Since each polishing unit is correspondingly provided with a driving motor for driving the polishing unit. Therefore, each polishing unit can be controlled and moved separately, and each polishing unit can be controlled conveniently and flexibly so as to meet the polishing requirements of the special-shaped workpiece 7 . At the same time, the drive mechanism drives the polishing unit close to or away from the symmetry line under the control of the main control circuit to adapt to different diameters of different parts of the workpiece.

Polishing unit: the polishing unit includes a support 3, a polishing wheel 1 and a spring 6 that allows the polishing wheel 1 to move elastically on the support 3, and the motor is connected to the support 3 to drive the support 3 to move relative to the line of symmetry. The polishing wheel 1 is sheathed on a mandrel 4 , and the mandrel 4 is mounted on a bracket 3 . A bearing 2 is also provided between the mandrel 4 and the bracket 3 , and the bearing 2 is used to protect the mandrel 4 and prolong the service life of the mandrel 4 . The material of the polishing wheel 1 is sponge, linen or flannelette.

Drive mechanism: the drive mechanism includes a drive rotation mechanism and a drive movement mechanism for driving the polishing unit closer to or away from the symmetry line. The driving and rotating mechanism includes a first transmission wheel 5 , a second transmission wheel 8 , a transmission belt 9 and a motor connected to the second transmission wheel 8 . The first transmission wheel 5 is arranged on one end of the mandrel 4, the first transmission wheel 5 is connected with the second transmission wheel 8 through a transmission belt 9, the motor drives the second transmission wheel 8 to rotate, and the second transmission The wheel 8 drives the first transmission wheel 5 to rotate through the transmission belt 9, so that the polishing wheel 1 rotates.

Circuit control: the circuit control includes a main control circuit, a three-dimensional scanning device, a hardness detection device and a pressure detection sensor. The main control circuit controls the movement and rotation of the polishing unit. The three-dimensional scanning device is used to scan the three-dimensional data of the special-shaped workpiece 7, and the data generated by the three-dimensional scanning device is transmitted to the main control circuit so that the driving motor drives the polishing unit to move relative to the line of symmetry. The hardness detection device is used to detect the hardness of the workpiece, and the main control circuit drives the motor of the polishing wheel 1 to rotate at different speeds according to different hardness data detected by the hardness detection device. The pressure detection sensor is used to detect the pressure value when the special-shaped workpiece 7 is polished, and the pressure sensor transmits the detected data to the main control circuit, and the main control circuit drives the driving motor to rotate according to the data provided by the pressure sensor to drive the polishing The unit is close to or far from the symmetry line so that the polishing unit can provide constant pressure polishing to the special-shaped workpiece 7 .

Preferably, when the special-shaped workpiece 7 is a metal material, the speed of the polishing wheel 1 is 2000 ~ 3000 r/min, and when the special-shaped workpiece 7 is a plastic material or ceramic material, the speed of the polishing wheel 1 is 1000 r/min. ~2000 r/min.

Wherein, by using a three-dimensional scanning device, the polishing unit can move more precisely. By adding a hardness detection device and a pressure sensor, they are respectively used to detect the hardness of the workpiece and the pressure value when the special-shaped workpiece 7 is polished. The main control circuit drives the motor of the polishing wheel 1 to rotate at different speeds according to different hardness data detected by the hardness detection device. According to the data provided by the pressure sensor, the main control circuit drives the driving motor to rotate to bring the polishing unit closer to or away from the symmetry line so that the polishing unit can provide constant pressure polishing for the special-shaped workpiece 7 . Since the polishing wheel 1 can set a more reasonable rotational speed and distance of the polishing wheel 1 according to the detected different hardnesses and pressures, the polishing effect is better.

As shown in Figure 5, applied to the above-mentioned elastic polishing equipment, the polishing process includes the following steps:

1. The scanning device scans the three-dimensional data of the special-shaped workpiece 7 and transmits it to the main control circuit;

2. The main control circuit drives the drive motor according to the three-dimensional data of the special-shaped workpiece 7 to adjust the polishing unit to move relative to the symmetry line to adapt to the shape of the workpiece.

3. The hardness detection device detects the hardness of the special-shaped workpiece 7 and transmits the hardness data to the main control circuit;

4. According to the hardness of the special-shaped workpiece 7, the main control circuit drives the motor of the polishing wheel 1 to rotate and polish at a specific speed corresponding to the hardness of the special-shaped workpiece 7.

5. The main control circuit outputs control information to the drive mechanism according to the detection data, and the drive mechanism controls the movement or rotation of the polishing unit.

6. The special-shaped workpiece 7 is manually or mechanically clamped and pushed into the polishing unit for in-and-out and rotary motion polishing.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection.

Claims (10)

1. the elastic polished equipment of a special-shaped workpiece, comprise pedestal, have the governor circuit of described special-shaped workpiece three-dimensional data, at least 4 polishing unit and the drive motors equal with polishing element number, it is characterized in that, described polishing unit is symmetrically set in pedestal both sides and forms line of symmetry, described driving mechanism drive under the control of governor circuit polishing unit near or away from line of symmetry to adapt to the different size of workpiece different parts; Described polishing unit comprise support, polishing wheel and make polishing wheel can on support the spring of resilient movement, motor is connected with support, and driving arm relative symmetry line moves.

2. elastic polished equipment according to claim 1, it is characterized in that, also comprise the three-dimensional scanner for scanning described special-shaped workpiece three-dimensional data, the data that three-dimensional scanner produces are transferred to described governor circuit and drive polishing unit to move relative to described line of symmetry to make drive motors.

3. elastic polished equipment according to claim 2, it is characterized in that, the motor comprising the rigidity detection device for detecting workpiece and drive polishing wheel to rotate, described in the different hardness data-driven that described governor circuit foundation rigidity detection device detects, the motor of polishing wheel rotates with friction speed.

4. elastic polished equipment according to claim 3, it is characterized in that, when described special-shaped workpiece is metal material, the speed of described polishing wheel is 2000 ~ 3000 r/min, described special-shaped workpiece be plastic material or ceramic material time, the speed of described polishing wheel is 1000 ~ 2000 r/min.

5. elastic polished equipment according to claim 4, is characterized in that, described special-shaped workpiece is pushed between polishing unit by artificial or manipulator clamping and carries out coming in and going out and rotary motion polishing.

6. the elastic polished equipment according to claim 3 to 5 any one, it is characterized in that, the press detection sensor of force value when comprising for detecting special-shaped workpiece polishing, described pressure sensor passes to described governor circuit the data detected, drive motors described in the data-driven that described governor circuit provides according to pressure sensor rotate drive polishing unit near or away from described line of symmetry with the polishing making polishing unit can provide constant pressure to special-shaped workpiece.

7. elastic polished equipment according to claim 1, is characterized in that, the material of described polishing wheel is sponge, burlap or flannelette.

8. elastic polished equipment according to claim 1, is characterized in that, described special-shaped workpiece is metal, plastics or pottery.

9. the elastic polished equipment according to claim 7 or 8, is characterized in that, described driver element is even number, is symmetrical arranged centered by described line of symmetry.

10. an elastic polished method for special-shaped workpiece, is applied to the elastic polished equipment as described in claim 3 to 6 any one, it is characterized in that comprising the following steps:

(1) scanning means scans the three-dimensional data of special-shaped workpiece and passes to governor circuit;

(2) governor circuit drives described drive motors adjustment polishing unit to move to adapt to workpiece shapes relative to described line of symmetry according to the three-dimensional data of special-shaped workpiece;

(3) rigidity detection device detect special-shaped workpiece hardness and hardness reportedly give governor circuit;

(4) described governor circuit is according to the hardness of special-shaped workpiece, drives the motor of polishing wheel to rotate polishing with the specific rotation speeds corresponding with described special-shaped workpiece hardness.