CN111673585A

CN111673585A - Gradual drawing method and polishing device

Info

Publication number: CN111673585A
Application number: CN202010364075.3A
Authority: CN
Inventors: 漆仲超; 刘阳; 杨胜华
Original assignee: Zhejiang Axilone Shunhua Aluminium and Plastic Co Ltd
Current assignee: Zhejiang Axilone Shunhua Aluminium and Plastic Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2020-09-18

Abstract

The application discloses wire drawing method and burnishing device of gradual change, wherein, the wire drawing method of gradual change includes that the wire drawing forms the wire drawing groove at the workpiece surface, at least partly conduct the gradual change district of predetermineeing in the wire drawing position on workpiece surface, aim at the gradual change district polishes and changes the polishing grinding volume along predetermineeing the direction gradually for the wire drawing groove degree of depth of gradual change district department is along predetermineeing the direction gradual change. According to the gradual-change wire drawing method and the polishing device, the workpiece is subjected to the wire drawing process and the polishing process that the polishing grinding amount changes along the preset direction, and the surface of the workpiece has the gradual-change effect, so that the requirement of an enterprise on high texture of the surface of a product is met.

Description

Gradual drawing method and polishing device

Technical Field

The application relates to the field of surface treatment processes, in particular to a gradual-change wire drawing method and a polishing device.

Background

At present, the requirements of stamping products required by electric tools, electronic products, lipstick tubes and the like on appearance and texture are higher and higher, and in order to meet the high-quality consciousness of enterprises, high-quality stamping products need to be produced. The traditional wire drawing method draws wires on the surface of a stamped product to form a workpiece with the same wire drawing groove, and the workpiece cannot meet the requirement of enterprises on high appearance texture of the product through a single surface treatment process.

Disclosure of Invention

Therefore, it is necessary to provide a gradual drawing method and a polishing apparatus for the technical problem that the surface of a workpiece cannot meet the requirement of enterprises for high quality of product appearance.

In order to achieve the purpose, the following technical scheme is adopted in the application: the gradual change wire drawing method comprises the steps of drawing a wire on the surface of a workpiece to form a wire drawing groove, polishing the gradual change region and gradually changing the polishing grinding amount along a preset direction by taking at least one part of a wire drawing part on the surface of the workpiece as a preset gradual change region, so that the depth of the wire drawing groove at the gradual change region gradually changes along the preset direction.

Several alternatives are provided below, but not as an additional limitation to the above general solution, but merely as a further addition or preference, each alternative being combinable individually for the above general solution or among several alternatives without technical or logical contradictions.

Optionally, the transition region is a curved surface distributed around a first axis, and the workpiece rotates around the first axis during polishing.

Optionally, one or more polishing wheels are used to polish the workpiece, and the polishing grinding amount is controlled during polishing by moving at least one polishing wheel perpendicular to and/or along the first axis.

Optionally, a plurality of polishing wheels are used to polish the workpiece, and the polishing wheels are sequentially arranged along the workpiece conveying direction, wherein the two polishing wheels have different contact positions and/or contact pressures with the workpiece.

Optionally, along the workpiece conveying direction, the workpiece portion contacted by each polishing wheel gradually moves or gradually converges along the preset direction.

Optionally, the polishing wheel rotates around a second axis, and the first axis is perpendicular to the second axis.

Optionally, the workpiece is of a cylindrical structure, the gradual change region is distributed on the outer peripheral wall of the workpiece, the preset direction is the axial direction of the cylindrical structure, and the depth of the wire drawing groove at the end part, which is closer to the cylindrical structure, of the polished workpiece is shallower.

The application also provides a burnishing device for polish the wire drawing position of work piece, burnishing device includes:

a fixed mount;

a conveyor belt moving along the fixed frame;

the clamp is arranged on the conveying belt and used for bearing a workpiece;

the polishing machine comprises a plurality of sets of polishing mechanisms, a motor and a polishing wheel, wherein the polishing mechanisms can change polishing and grinding amount, and each set of polishing mechanism comprises an adjusting frame, and the motor and the polishing wheel are arranged on the adjusting frame and are mutually linked.

Optionally, the clamp is rotatably mounted to the conveyor belt.

Optionally, the polishing mechanism has a plurality of sets, and at least one set of the adjusting bracket can change the relative position of the polishing wheel and the workpiece transmission path.

Optionally, the polishing mechanism has multiple sets, wherein the contact positions and/or contact pressures of the two sets of polishing wheels with the workpiece are different.

The gradual-change wire drawing method and the polishing device have the following technical effects: firstly, a workpiece is subjected to a wire drawing process, and a wire drawing groove is formed on the surface of the workpiece; and polishing by adopting a polishing device, wherein the polishing and grinding amount of each part of a gradual change area in the wire drawing part on the surface of the workpiece is different during polishing, the polishing and grinding amount shows a trend of gradually increasing or gradually decreasing along a preset direction, and after the wire drawing groove is ground, the depth of the wire drawing groove correspondingly gradually becomes shallow or shallow along the preset direction. The workpiece is subjected to a wire drawing process and a polishing process in which the polishing and grinding amount changes along a preset direction, and the surface of the workpiece has a gradual change effect so as to meet the requirement of enterprises on high texture of the surface of a product.

Drawings

FIG. 1 is a schematic flow chart of a method for providing progressive drawing according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a polishing apparatus according to an embodiment of the present application;

FIG. 3 is an enlarged partial schematic view of the polishing apparatus shown in FIG. 2 at A;

FIG. 4 is a schematic view of the polishing apparatus shown in FIG. 2 from another perspective;

fig. 5 is a schematic structural diagram of a drawing device provided in an embodiment of the present application;

fig. 6 is a schematic structural view of the drawing device shown in fig. 5 from another view angle.

The reference numerals in the figures are illustrated as follows:

10. a workpiece; 20. a polishing device; 21. a fixed mount; 22. a conveyor belt; 23. a clamp; 24. a polishing mechanism; 241. an adjusting bracket; 242. a motor; 243. a polishing wheel; 25. a clamp rotation assembly; 251. a rack; 252. a gear; 26. a main drive motor; 27. an electric appliance control cabinet; 28. a baffle plate; 29. an air draft dust removal device; 30. a wire drawing device; 31. a turntable; 32. a wire drawing clamp; 33. drawing a wire; 34. a slider mechanism; 35. the motor is driven.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 creative effort, shall fall within the protection scope of the present application.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 6 together, an embodiment of the present application provides a gradual drawing method, including step S1: drawing a wire on the surface of a workpiece; step S2: and polishing the wire drawing part. Specifically, wire drawing is performed on the surface of the workpiece 10 to form a wire drawing groove, at least one part of the wire drawing part on the surface of the workpiece 10 serves as a preset gradual change region, polishing is performed on the gradual change region, and the polishing grinding amount is gradually changed along a preset direction, so that the depth of the wire drawing groove at the gradual change region gradually changes along the preset direction.

It is understood that the polishing is to polish the drawn part, and the whole drawn area may be selected as the transition area for polishing, or part of the drawn area may be selected as the transition area for polishing. The preset direction can be arbitrarily selected according to the design of the appearance requirement of the product, and the surface of the workpiece 10 can be a plane or a curved surface.

Firstly, a workpiece 10 is subjected to a wire drawing process, and a wire drawing groove is formed on the surface of the workpiece 10; and then, in the polishing process, the polishing and grinding amount of each part of the gradual change region in the wire drawing part on the surface of the workpiece 10 is different, the polishing and grinding amount shows a trend of gradually increasing or gradually decreasing along a preset direction, the depth of the corresponding wire drawing groove changes from deep to shallow or from shallow to deep along the preset direction, and the surface of the workpiece 10 shows a gradual change effect.

In one embodiment, the workpiece 10 is a cylindrical structure, the transition region is distributed on the outer circumferential wall of the workpiece 10, and the predetermined direction is an axial direction of the cylindrical structure. For example, it may be a transition from one end to the other end, or from the axial middle of the workpiece 10 to one end of the workpiece 10, and the workpiece 10 is rotated about the first axis (the axis of the cylindrical structure) during polishing, so that the polishing grinding amount at a certain position in the axial direction of the workpiece 10 is the same at all positions along the circumferential direction of the workpiece 10.

In various embodiments, the workpiece 10 may be polished with one or more polishing wheels 243 in a manner that controls the amount of polishing abrasion by moving at least one polishing wheel 243 perpendicular to and/or along the first axis. Polishing wheel 243 is configured to be movable along a first axis to also facilitate accommodating workpieces of different sizes.

When the polishing wheel 243 moves vertical to the first axis, the polishing grinding amount of the polishing wheel 243 and the workpiece 10 changes, and when the polishing wheel 243 moves close to the first axis, the polishing grinding amount is increased; as the polishing wheel 243 moves away from the first axis, the amount of buff grinding decreases.

Movement of the polishing wheel 243 along the first axis of the workpiece 10, the polishing wheel 243 polishes in a predetermined direction along the first axis. The polishing wheel 243 moves perpendicular to the first axis while moving along the first axis, so that the polishing grinding amount produces a gradual change effect in a preset direction.

Polishing wheel 243 moves relative to workpiece 10, it being understood that movement of at least one of polishing wheel 243 and workpiece 10 causes a change in the relative position of the two.

In one embodiment, the polishing wheels 243 are provided in a plurality of pairs, each pair of polishing wheels is arranged in sequence along the conveying direction of the workpiece 10, and the two polishing wheels 243 of the same pair hold and grind the workpiece 10.

In one embodiment, the polishing wheels 243 are sequentially arranged along the conveying direction of the workpiece 10, and at least two of the polishing wheels have different contact positions and/or contact pressures with the workpiece.

For example, along the workpiece conveying direction, the workpiece part contacted by each polishing wheel gradually moves or gradually converges along the preset direction.

The contacted workpiece part is gradually moved and combined with the contact pressure change, different grinding amounts can be obtained at different parts, and the gradual convergence of the contacted workpiece part can be understood as that the grinding amount is increased by polishing for a plurality of times in a specified area, and the specified area is gradually converged to be smaller, so that the gradual change effect is generated.

For example, the polishing wheels 243 arranged in the workpiece conveying direction are gradually changed in the height direction to be disposed corresponding to a preset direction so as to control the contact position with the workpiece 10. When the polishing wheels 243 at each position contact the workpiece 10, the polishing wheels 243 are at different distances from the first axis of the workpiece 10, and the polishing grinding amount, i.e., the contact pressure, is different. The plurality of polishing wheels 243 arranged in the conveying direction have different contact positions and/or contact pressures with the workpiece 10, and move perpendicular to the first axis of the workpiece 10 and/or move along the first axis of the workpiece 10 from a single polishing wheel 243, can generate a gradual change effect along a preset direction, so that the polishing grinding amount is gradually changed along the preset direction.

Specifically, the polishing wheel 243 rotates around a second axis, and the first axis is perpendicular to the second axis, so that the polishing grinding amount can be controlled to change along the direction of the first axis, that is, the first axis can be controlled as a preset direction. In other embodiments, the first axis and the second axis may be disposed at an angle.

In one embodiment, the workpiece 10 is translated in a direction parallel to the second axis of the polishing wheel 243. When the workpiece 10 is translated and rotated to a certain position, polishing wheels 243 are distributed on both sides of the workpiece 10, the polishing wheels 243 on both sides polish the same workpiece 10 simultaneously, and the contact positions and contact pressures of the polishing wheels 243 on both sides and the workpiece 10 in height are the same, so that the polishing effect is enhanced.

In other embodiments, the polishing wheels 243 on both sides may contact the workpiece 10 at different heights and different contact pressures when the workpiece 10 moves in the transmission translation. The contact position and the contact pressure are set uniformly and reasonably by combining all the polishing wheels 243 in the transmission direction, so as to ensure the gradual change effect.

An embodiment of the present application further provides a polishing apparatus 20, where the polishing apparatus 20 is used for polishing a wire-drawing portion of the workpiece 10, and can change the polishing grinding amount, and a gradual wire-drawing method can be implemented by using the polishing apparatus 20. The polishing device 20 comprises a fixed frame 21, a conveyor belt 22, a clamp 23 and one or more sets of polishing mechanisms 24, wherein the conveyor belt 22 moves along the fixed frame 21, the clamp 23 is installed on the conveyor belt 22 and carries the workpiece 10, and the polishing mechanisms 24 polish the workpiece 10 on the conveyor belt 22.

The polishing mechanisms 24 each include an adjusting frame 241, a motor 242, and a polishing wheel 243, and the motor 242 and the polishing wheel 243 are linked and both mounted on the adjusting frame 241. The height of the polishing wheel 243, the translation distance relative to the workpiece 10 and the distance between the polishing wheel 243 and the first axis of the workpiece 10 can be adjusted through the adjusting frame 241, so that the gradual change of the polishing grinding amount of the gradual change area on the workpiece 10 along the preset direction under the action of the polishing wheel 243 can be realized, and the effect of gradual change of the drawn wire is generated.

In one embodiment, the clamp 23 is rotatably mounted on the conveyor 22, and the clamp 23 can rotate relative to the conveyor 22 while translating along with the conveyor 22, so that the workpiece 10 mounted on the clamp 23 also rotates relative to the conveyor 22.

Further, the clamp 23 is provided with a clamp rotation assembly 25, the clamp rotation assembly 25 is arranged corresponding to the polishing wheel 243, and when the workpiece 10 is polished by the polishing wheel 243, the workpiece is rotated under the action of the clamp rotation assembly 25.

Referring to fig. 3, the clamp rotation assembly 25 includes a rack 251 and a gear 252, the gear 252 is fixedly installed at the bottom of the clamp 23, the rack 251 is disposed on the fixing frame 21, and the gear 252 is engaged with the rack 251 to drive the clamp 23 to rotate. When the clamp 23 passes through the rack 251 along with the conveyor belt 22, the gear 252 on the clamp 23 is meshed with the rack 251, so that the clamp 23 rotates to drive the workpiece 10 to rotate.

In one embodiment, the polishing mechanism 24 has a plurality of sets, and at least one set of the adjusting bracket 241 can change the relative position of the polishing wheel 243 and the workpiece 10 transmission path. The relative position of the polishing wheel 243 and the workpiece 10 conveying path is changed by the adjusting frame 241, so that the same workpiece 10 can be polished by contacting with the polishing wheel 243 at different positions of conveying.

In one embodiment, the polishing mechanism 24 has a plurality of sets, wherein the two sets of polishing wheels 243 have different contact positions and/or contact pressures with the workpiece 10. It is understood that the contact pressure of the two sets of polishing wheels 243 with the workpiece 10 is different to form different polishing grinding amounts; the contact positions are different so that the polishing grinding amount is changed in a preset direction. Two of the sets, which is understood to be at least two of the plurality of sets of polishing mechanisms 24, may be different for each of the plurality of sets of polishing mechanisms 24 in terms of contact position and/or contact pressure. The different contact positions or contact pressures generate that the workpiece part contacted by each polishing wheel gradually moves or gradually converges along the preset direction.

Specifically, a plurality of sets of polishing mechanisms 24 are arranged along the transport direction of the conveyor belt 22, the polishing wheels 243 of each polishing mechanism 24 are arranged at different heights, the distance between the polishing wheels 243 and the first axis of the workpiece 10 is also arranged at different distances, and each polishing wheel 243 along the transport direction sequentially polishes the workpiece 10.

In one embodiment, the polishing wheels 243 are divided into two groups, wherein one group of polishing wheels 243 are disposed on two opposite sides of the conveyor belt 22, the polishing wheels 243 on two sides jointly act on the wiredrawing part of the workpiece 10, and the other group of polishing wheels 243 are disposed on one side of the conveyor belt 22 and act on the wiredrawing part.

Further, the polishing device 20 further comprises a main transmission motor 26 and an electrical control cabinet 27, wherein the main transmission motor 26 drives the conveyor belt 22 to move, and the electrical control cabinet 27 can control the main transmission motor 26 and control the adjusting frame 241 of the polishing mechanism 24 to perform the adjusting function, and the clamp 23 rotates, the polishing wheel 243 rotates, and the like.

Furthermore, the baffle 28 is used for isolating the electrical control cabinet 27 from the polishing area, the polishing wheel 243 polishes the workpiece 10 on the conveyor belt 22 in the polishing area, and the air suction and dust removal device 29 is used for keeping the polishing area clean and reducing dust.

As shown in fig. 2, 3 and 4, the conveyor 22 is two, the workpiece 10 is conveyed above the conveyor 22, and the same polishing wheel 243 can polish the workpieces 10 on both sides of the polishing wheel 243 simultaneously, so as to improve efficiency. Meanwhile, the same workpiece 10 may also be polished simultaneously by the polishing wheels 243 located at both sides of the workpiece 10. During the transmission of the workpiece 10, the workpieces are polished by different polishing wheels 243, the polishing wheels 243 have different heights and different distances from the workpiece 10, so that the polishing wheels 243 have different contact positions and different contact pressures with the workpiece 10, and during polishing, the workpiece 10 can rotate, and the gradual effect of the surface of the workpiece 10 is achieved.

The drawing process for forming the drawing groove by drawing the surface of the workpiece 10 may be performed by the drawing device 30 using a conventional drawing process. The drawing device 30 is not an important improvement of the present application, and there are some improvements to the drawing device 30.

Referring to fig. 5 and 6, the drawing device 30 includes a turntable 31, a drawing clamp 32, a drawing belt 33, and a slider mechanism 34, wherein the drawing clamp 32 is mounted on the turntable 31 and can drive the workpiece 10 mounted on the drawing clamp 32 to rotate; the wire drawing belt 33 performs wire drawing treatment on the workpiece 10 under the control of the driving motor 35 to form a wire drawing groove; the slider mechanism 34 controls the groove depth of the wire drawing groove by adjusting the pressing force or distance between the workpiece 10 and the wire drawing belt 33.

Specifically, the thickness of the drawing belt 33 is adjustable, and the groove depth of the drawing groove is controlled by adjusting the thickness of the drawing belt 33. The wiredrawing belt 33 may be, for example, a wiredrawing abrasive belt.

More specifically, the number of the drawing jigs 32 is plural, and the drawing jigs 32 are uniformly distributed along the circumferential direction of the turntable 31. The rotary table 31 is driven by a driving motor 35, and when the rotary table 31 rotates, the wire drawing jig 32 which can be circulated on the rotary table 31 is put into the workpiece 10, so that the efficiency is improved.

In one embodiment, a simple process flow for performing surface treatment on the workpiece 10 in combination with the gradual drawing process and the drawing device 30 and the polishing device 20 is as follows: drawing an aluminum sheet into a round or square shape, drawing the surface of a workpiece 10, polishing the workpiece 10, oxidation dyeing and drying. It is understood that aluminum material may be replaced with copper material or alloy. The method comprises the following specific steps:

1) drawing and forming an aluminum sheet in a stamping die to obtain a round or square workpiece 10 or workpieces of various shapes;

2) the method comprises the steps of carrying out wire drawing treatment on a workpiece 10 in the previous process, adopting a wire drawing device 30, sleeving the workpiece 10 into a wire drawing clamp 32, fixing the workpiece 10 to rotate by the wire drawing clamp 32, controlling the rotating speed and the direction of the wire drawing clamp 32 by a servo motor, pushing the wire drawing clamp 32 and the workpiece 10 to the surface of a wire drawing belt 33 by a sliding block mechanism 34, adjusting the pressure up and down or the whole, controlling the wire drawing belt 33 by a driving motor 35, carrying out wire drawing treatment on the workpiece 10 by rotating the wire drawing belt 33, adjusting the rotating speed of the wire drawing belt 33 by a first driving motor 35, adjusting the thickness of the wire drawing belt 33, and controlling the depth of a wire drawing groove by the sliding block mechanism 34.

3) The wire drawing clamp 32 is fixed on the turntable 31, three clamps 23 or a plurality of clamps 23 can be installed, the turntable 31 is driven by a driving motor 35, and the workpiece 10 can be circularly arranged when the workpiece 10 is arranged;

4) polishing the workpiece 10 after wire drawing, wherein the polishing device 20 is adopted to perform smooth processing on the texture of the wire drawing or perform depth processing on the wire, and the thread on the end part of the workpiece 10 is removed, and the gradual change effect is achieved by combining the two processes;

5) the polished workpiece 10 may also be subjected to an oxidation treatment or other surface treatment, such as painting, to produce a graded result, resulting in a unique surface effect.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application.

Claims

1. The gradual change wire drawing method comprises the step of drawing a wire on the surface of a workpiece to form a wire drawing groove, and is characterized in that at least one part of a wire drawing part on the surface of the workpiece is used as a preset gradual change area, the gradual change area is polished, and the polishing grinding amount is gradually changed along a preset direction, so that the depth of the wire drawing groove at the gradual change area is gradually changed along the preset direction.

2. The progressive wire drawing method of claim 1 wherein the progressive zone is a curved surface distributed about a first axis about which the workpiece spins during polishing.

3. The progressive wire drawing method of claim 2 wherein the workpiece is polished using one or more polishing wheels, the amount of polishing abrasion being controlled during polishing by moving at least one polishing wheel perpendicular to and/or along the first axis.

4. The progressive wire drawing method according to claim 1, wherein the workpiece is polished by a plurality of polishing wheels arranged in sequence along a workpiece conveying direction, wherein a contact position and/or a contact pressure with the workpiece is different between the two polishing wheels.

5. The progressive wire drawing method according to claim 4, wherein the portion of the workpiece contacted by each polishing wheel is gradually moved or gradually converged in the predetermined direction along the workpiece conveying direction.

6. The progressive wire drawing method according to claim 1, wherein the workpiece has a cylindrical structure, the progressive region is distributed on an outer peripheral wall of the workpiece, and the predetermined direction is an axial direction of the cylindrical structure, and a depth of the wire drawing groove becomes shallower at an end portion closer to the cylindrical structure in the polished workpiece.

7. A polishing apparatus for polishing a wiredrawing portion of a workpiece, comprising:

a fixed mount;

a conveyor belt moving along the fixed frame;

the clamp is arranged on the conveying belt and used for bearing a workpiece;

8. The polishing apparatus as recited in claim 7, wherein the jig is rotatably mounted to the conveyor belt.

9. The polishing apparatus as recited in claim 7, wherein the polishing mechanism has a plurality of sets, and at least one set of the adjustment frame is capable of changing a relative position of the polishing wheel to the workpiece transfer path.

10. The polishing apparatus according to claim 7, wherein the polishing mechanism has a plurality of sets, and wherein the contact positions and/or contact pressures of the polishing wheels of the two sets with the workpiece are different.