High-precision paint scraping device and paint scraping method

Abstract

The present invention discloses a high-precision paint scraping device and a paint scraping method thereof, including a positioning mechanism, a knife seat and a driving mechanism, wherein the positioning mechanism is used to clamp the paint stripping end of the copper wire and limit the paint stripping end to extend straight, a paint scraper is fixedly arranged on the knife seat, and the driving mechanism includes a first driving mechanism and a second driving mechanism, wherein the first driving mechanism includes a first electric cylinder and a first connecting block, and the knife seat is fixedly arranged on the first connecting block, and the two move axially synchronously to limit the paint scraping length of the paint scraper; the second driving mechanism includes a second electric cylinder and a second connecting block, and one side of the second connecting block is slidably connected to the first connecting block, and the two move axially respectively, and at the same time, the other side of the second connecting block is slidably attached to a guide inclined plane, so that the second connecting block moves axially relative to the first connecting block while driving the first connecting block to synchronously move radially relative to the paint stripping end to limit the paint scraping depth of the paint scraper. This scheme guarantees the accuracy of paint scraping on the copper wire to the greatest extent.

Description

Technical Field

[0001] The invention relates to the technical field of copper wire processing equipment, and in particular to a high-precision paint scraping device and a paint scraping method thereof. Background Art

[0002] At present, the known motor armature components are mostly divided into two categories: round copper wire and flat copper wire. Round copper wire has a smaller cross-sectional area and is mostly used for low-power motor armatures; flat copper wire has a larger cross-sectional area and is mostly used for high-power motor armatures. As the market demand for high-power motors increases, the application of flat copper wire also increases. The flat copper hairpin wire used for the motor stator needs to go through the welding process of the wire foot after forming. Therefore, it is necessary to remove the insulating paint layer of the copper wire at the welding position to prepare for the welding process.

[0003] In the prior art, upper and lower paint knives are used to clamp the flat copper wire for paint removal, as disclosed in CN109599798B and CN 221408257 U. Conventional paint removal devices mainly scrape the paint layer on the surface of the flat copper wire by translation. The scraping depth of the paint layer is usually fixed. The paint scraping depth mainly depends on the spacing between the scraper and the copper wire, which is usually a fixed spacing. If adjustment is required, the spacing between the entire positioning mechanism and the scraper moving mechanism needs to be adjusted. The adjustment is very cumbersome and difficult, and for some paint scraping devices that are relatively easy to install, the spacing cannot be adjusted. The difference in paint scraping depth of copper wires of different sizes will result in the diameter of the final paint removal end, which in turn affects the overall processing accuracy. Therefore, a paint scraping device that cannot control the paint scraping depth is not suitable for high-precision processing requirements. Summary of the invention

[0004] The purpose of the invention is to overcome the shortcomings of the prior art and provide a high-precision paint scraping device.

[0005] The purpose of the present invention is achieved through the following technical solutions:

[0006] A high-precision paint scraping device, comprising a positioning mechanism, a knife seat and a driving mechanism, wherein the positioning mechanism is used to clamp the paint stripping end of the copper wire and limit the paint stripping end to extend straight, the knife seat is fixedly provided with a paint scraper that is opposite to the paint stripping end, the driving mechanism comprises a first driving mechanism and a second driving mechanism, the first driving mechanism comprises a first electric cylinder and a first connecting block driven by the first electric cylinder to move axially, the knife seat is fixedly provided on the inner side surface of the first connecting block, and the two are synchronously moved axially relative to the paint stripping end to limit the paint scraping length of the paint scraping knife; the second driving mechanism comprises a second electric cylinder and a second connecting block driven by the second electric cylinder to move axially, one side of the second connecting block is slidably connected to the outer side surface of the first connecting block, the two are axially moved respectively, and at the same time, the other side of the second connecting block is slidably attached to a guide inclined surface, so that the second connecting block moves axially relative to the first connecting block while driving the first connecting block to synchronously move radially relative to the paint stripping end to limit the paint scraping depth of the paint scraping knife; it also comprises a fixed plate, on which a fixed plate is fixedly provided The fixing block is provided with a concave portion in the fixing block and an inclined first guide slot extending along an axial direction, the guiding inclined surface is an inner slot surface of the first guiding slot, and a side portion of the second connecting block is slidably embedded in the first guiding slot and slidably fits with the guiding inclined surface to slide along the guiding inclined surface; a second guiding slot extending straightly along the axial direction is concavely provided in the other side of the second connecting block, and a connecting convex strip matching the second guiding slot is formed on the outer side surface of the first connecting block, and the connecting convex strip is slidably arranged in the second guiding slot, so that the first connecting block and the second connecting block can slide axially independently relative to each other; the positioning mechanism at least comprises a first positioning block, a first positioning cylinder and a pressing block, the first positioning block is fixedly arranged on the fixing plate, the first positioning cylinder is arranged above the first positioning block, the pressing block is fixedly connected to the cylinder head of the first positioning cylinder, and the cylinder head moves vertically relative to the first positioning block to drive the pressing block to move relative to the first positioning block to cooperate with the first positioning block to clamp or release the copper wire.

[0007] Preferably, the first driving mechanism and the second driving mechanism are arranged in parallel, the first electric cylinder and the first connecting block, as well as the second electric cylinder and the second connecting block are connected via a movable connecting member, the movable connecting member includes a moving member and a connecting seat, the front ends of the first electric cylinder and the second electric cylinder are respectively fixedly connected to the rear end of a moving member, the rear ends of the first connecting block and the second connecting block are respectively fixedly connected to a connecting seat, a radially extending slide groove is provided in the connecting seat, the front end of the moving member is slidably embedded in the slide groove and moves radially along the slide groove, so that the first connecting block and the second connecting block can move radially relative to the first electric cylinder and the second electric cylinder, respectively.

[0008] Preferably, the positioning mechanism also includes a second positioning block, a second positioning cylinder, and an insertion rod, the second positioning block is axially slidably arranged in the first positioning block, the first end of the second positioning block is opposite to the pressure block, and the first end face of the second positioning block is lower than the end face of its second end, forming a positioning step surface matching the end of the copper wire, the second positioning cylinder is arranged above the first positioning block, the insertion rod is fixed to the cylinder head of the second positioning cylinder and driven by it to move vertically relative to the second end of the second positioning block, an inclined extending socket is arranged in the second end of the second positioning block, and the bottom of the insertion rod has an inclined block matching the socket, which can be inserted into the socket to drive the second positioning block to move axially along the first positioning block, so that the positioning step surface defines the end of the copper wire.

[0009] Preferably, the pressing block is detachably connected to a connecting rod, and the connecting rod is fixedly connected to the cylinder head of the positioning cylinder. A recess matching the outer contour of the copper wire is formed on the outer side of the bottom of the pressing block, and the recess is engaged with the inner side of the copper wire to limit the end face of the paint-stripped end of the copper wire to protrude outward from the side of the positioning step surface.

[0010] Preferably, a limit block adapted to the pressing block is detachably fixed on the end surface of the first end of the second positioning block, and the top surface of the limit block constitutes the positioning step surface to cooperate with the pressing block to limit the paint-removed end of the copper wire.

[0011] Preferably, the knife seat is detachably fixed on the inner side surface of the first connecting block, and an inclined extending groove is provided on the inner side surface of the knife seat. The paint scraper is fixed in the groove and extends in the same direction as the groove, so that the blade of the paint scraper protrudes out of the groove.

[0012] Preferably, the paint scraping method of the high-precision paint scraping device as described above comprises the following steps:

[0013] S1, placing the paint-stripped end of the copper wire on the positioning step surface, and then starting the first positioning cylinder to press the pressing block downward to limit the vertical position of the paint-stripped end;

[0014] S2, starting the second positioning cylinder to press down the insertion rod to drive the second positioning block to slide, so that the positioning step surface abuts against the paint stripping end to define the horizontal position of the paint stripping end;

[0015] S3, starting the first electric cylinder and the second electric cylinder at the same time, the first electric cylinder drives the first connecting block to move axially to drive the knife holder to move axially synchronously, so that the blade of the paint scraper is aligned with the starting position of the paint removal end, so as to limit the paint scraping length of the paint scraper; at the same time, the second electric cylinder drives the second connecting block to move axially to drive the first connecting block to move radially synchronously, so as to adjust the distance between the blade of the paint scraper and the end face of the paint removal end, so as to limit the paint scraping depth of the paint scraper; in this process, the first connecting block and the second connecting block are slidably connected, so as to form stepless adjustment in the radial and axial directions of the paint scraper movement;

[0016] S4, starting the first electric cylinder to drive the first connecting block to move axially in the reverse direction to drive the paint scraper to complete the paint scraping operation on the paint removal end.

[0017] The beneficial effects of the present invention are mainly reflected in:

[0018] 1. A first driving mechanism is provided to provide an axial driving force to the paint scraper to control the axial moving distance of the paint scraper so as to accurately adapt the paint scraping length required by the paint stripping end; a second driving mechanism is provided to provide a radial driving force to the paint scraper to control the distance between the blade of the paint scraper and the paint stripping end so as to accurately adapt the paint scraping depth required by the paint stripping end, the first driving mechanism and the second driving mechanism cooperate to ensure the processing accuracy of the paint stripping end of the copper wire, wherein the first connecting block and the second connecting block are slidably connected, so as to form a stepless adjustment in the radial and axial directions of the paint scraper movement, thereby maximizing the paint scraping accuracy and flexibility of the paint scraper and improving the application range of the paint scraper;

[0019] 2. The first connecting block and the second connecting block are slidably connected, which can improve the stability and accuracy of the second connecting block driving the first connecting block to move, and also enable the first electric cylinder and the second electric cylinder to be arranged in parallel, saving equipment space;

[0020] 3. The positioning mechanism is provided with a second positioning block that can slide relative to the first positioning cylinder to limit the end of the paint stripping end, so as to avoid hard contact between the end of the paint stripping end and the positioning mechanism when it is placed and positioned, thereby ensuring the integrity of the end of the paint stripping end and further improving the paint scraping accuracy of the paint stripping end. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings:

[0022] Figure 1 : A schematic diagram of an embodiment of the present invention;

[0023] Figure 2 : A schematic diagram of another angle of an embodiment of the present invention;

[0024] Figure 3 : Figure 2A magnified schematic diagram of part A;

[0025] Figure 4 : A partial cross-sectional view of an embodiment of the present invention;

[0026] Figure 5 : A side view of an embodiment of the present invention;

[0027] Figure 6 : Figure 5 A magnified schematic diagram of part B;

[0028] Figure 7 : A cross-sectional view of the positioning mechanism of an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0030] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0031] like Figures 1 to 7As shown, the present invention discloses a high-precision paint scraping device, including a positioning mechanism, a knife seat 1 and a driving mechanism, the positioning mechanism is used to clamp the paint stripping end of the copper wire 6 and limit the paint stripping end to extend straight, the knife seat 1 is fixedly provided with a paint scraper 101 facing the paint stripping end, the driving mechanism includes a first driving mechanism and a second driving mechanism, the first driving mechanism includes a first electric cylinder 201 and a first connecting block 202 driven by the first electric cylinder to move axially, the knife seat 1 is fixedly arranged on the inner side surface of the first connecting block 202, and the two move axially relative to the paint stripping end synchronously to limit the scraping The paint scraping length of the paint scraper 101; the second driving mechanism includes a second electric cylinder 203 and a second connecting block 204 driven by the second electric cylinder to move axially, one side of the second connecting block 204 is slidably connected to the outer side of the first connecting block 202, and the two are axially moved respectively, and the other side of the second connecting block 204 is slidably attached to a guide slope, so that the second connecting block 204 moves axially relative to the first connecting block 202 while driving the first connecting block 202 to move radially relative to the paint stripping end synchronously, so as to limit the paint scraping depth of the paint scraper 101. The paint stripping end of the copper wire 6 is the end of the copper wire 6 where the paint layer needs to be removed, and it has a certain length. The axial direction of the paint stripping end is defined as the axial direction of the device, and the direction perpendicular to its extension direction defines the radial direction of the device.

[0032] In this solution, a first driving mechanism is provided to provide an axial driving force to the paint scraper 101 to control the axial movement distance of the paint scraper 101 so as to accurately adapt the paint scraping length required by the paint removing end; a second driving mechanism is provided to provide a radial driving force to the paint scraper 101 to control the distance between the blade of the paint scraper 101 and the paint removing end so as to accurately adapt the paint scraping depth required by the paint removing end. The first driving mechanism and the second driving mechanism cooperate together to ensure the processing accuracy of the paint removing end of the copper wire 6.

[0033] The first drive mechanism and the second drive mechanism are linked by slidingly connecting the first connecting block 202 and the second connecting block 204, so that the first drive mechanism and the second drive mechanism can be arranged in parallel to save the space occupied by the equipment to the greatest extent. At the same time, the first connecting block 202 and the second connecting block 204 are slidably connected, so that the paint scraper 101 can be infinitely adjusted in both radial and axial directions, which maximizes the paint scraping accuracy and flexibility of the paint scraper 101 and improves the application range of the paint scraper 101.

[0034] Specific as Figure 1-Figure 4As shown, the first electric cylinder 201 and the first connecting block 202, as well as the second electric cylinder 203 and the second connecting block 204 are connected via a movable connecting member, the movable connecting member comprising a moving member 205 and a connecting seat 206, the front ends of the first electric cylinder 201 and the second electric cylinder 203 are respectively fixedly connected to the rear end of a moving member 205, the rear ends of the first connecting block 202 and the second connecting block 204 are respectively fixedly connected to a connecting seat 206, a radially extending slide groove 2061 is provided in the connecting seat 206, the front end of the moving member 205 is slidably embedded in the slide groove 2061, and moves radially along the slide groove 2061, so that the first connecting block 202 and the second connecting block 204 can move radially relative to the first electric cylinder 201 and the second electric cylinder 203, respectively.

[0035] The connecting member 205 is preferably fixedly connected to the front ends of the first electric cylinder 201 and the second electric cylinder 203 by a threaded butt joint method, and the connecting member 205 is preferably a T-shaped rod, so that its head forms a rod shape matching the slide groove 2061, so as to improve the smoothness of the radial sliding of the head of the connecting member 205 in the slide groove 2061. Of course, in other feasible embodiments, the front end of the moving member 205 can be any shape that matches the slide groove 2061, such as a spherical shape.

[0036] The device also includes a fixed plate 4, on which a fixed block 402 is fixedly arranged, and a first guide slot 403 extending obliquely along the axial direction is concavely arranged in the fixed block 402, and the guide slope is the inner groove surface of the first guide slot 403, and the side of the second connecting block 204 is slidably embedded in the first guide slot 403, and is slidably fitted with the guide slope to slide along the guide slope. Preferably, the inner side of the second connecting block 204 is a T-shaped structure, so that the second connecting block 204 is slidably clamped in the first guide slot 403, so as to improve the stability and smoothness of the second connecting block 204 sliding in the first guide slot 403, and effectively limit the moving direction of the second connecting block 204.

[0037] Similarly, a second guide groove 208 extending straight along the axial direction is recessed on the other side of the second connecting block 204, and a connecting ridge 207 matching the second guide groove 208 is formed on the outer side of the first connecting block 202. The connecting ridge 207 is slidably arranged in the second guide groove 208, wherein the connecting ridge 207 is also preferably a guide strip with a T-shaped cross-section to ensure the smoothness of the movement of the first connecting block 202 relative to the second connecting block 204.

[0038] Since the second guide slot 208 extends straight in the axial direction, the first connection block 202 and the second connection block 204 can slide axially independently without affecting each other. At the same time, due to the existence of the guide slope, the second connection block 204 is driven by the second electric cylinder 203 to move axially while generating radial displacement along the guide slope, that is, the second connection block 204 moves axially and radially at the same time, and the radial movement of the second connection block 204 drives the first connection block 202 to move radially synchronously to adjust the paint scraping depth.

[0039] like Figure 3-Figure 7 As shown, the positioning mechanism at least includes a first positioning block 501, a first positioning cylinder 502 and a pressing block 503, the first positioning block 501 is fixed on the fixed plate 4, the first positioning cylinder 502 is arranged above the first positioning block 501, the pressing block 503 is fixedly connected to the cylinder head of the first positioning cylinder 502, and the cylinder head moves vertically relative to the first positioning block 501 to drive the pressing block 503 to move relative to the first positioning block 501 to cooperate with the first positioning block 501 to clamp or release the copper wire 6.

[0040] The first positioning block 501 in this solution has multiple feasible modes, which can be a closed type, that is, the pressing block 503 is completely built inside it. It can also be a semi-closed type as shown in the embodiment shown in the figure, where the inner side of the first positioning block 501 is concave to form a recessed portion that matches the outer contour of the first pressing block 503, so that the pressing block 503 can be lifted up and down along the inner wall of the recessed portion, so as to provide visualization of the movement of the pressing block 503 while ensuring its stability and smoothness of movement.

[0041] Furthermore, the positioning mechanism also includes a second positioning block 504, a second positioning cylinder 505, and an insertion rod 506. The second positioning block 504 is axially slidably arranged in the first positioning block 501. The first end of the second positioning block 504 is opposite to the pressing block 503, and the first end face of the second positioning block 504 is lower than the end face of its second end, forming a positioning step surface 508 adapted to the end of the copper wire 6. The second positioning cylinder 505 is arranged above the first positioning block 501, and the insertion rod 506 is fixedly connected to the cylinder head of the second positioning cylinder 505 and driven by it to move vertically relative to the second end of the second positioning block 504. An inclined extending socket 507 is arranged in the second end of the second positioning block 504, and the bottom of the insertion rod 506 has an inclined block adapted to the socket 507, so as to be inserted into the socket 507 to drive the second positioning block 504 to move axially along the first positioning block 501, so that the positioning step surface 508 defines the end of the copper wire 6. The inclination of the oblique insertion hole 507 is determined according to the required sliding distance of the second positioning block 504. Due to the soft nature of the copper wire 6, the sliding property of the second positioning block 504 allows the radial positioning of the end of the paint stripping end after the top of the paint stripping end is positioned, so as to avoid hard contact with the end of the paint stripping end, maximize the integrity of the end of the paint stripping end, and further improve the paint scraping accuracy of the paint stripping end.

[0042] The first positioning block 501, the first positioning cylinder 502 and the pressing block 503 in this solution limit the top of the paint-removed end of the copper wire 6 to define the vertical position of the paint-removed end of the copper wire 6. The second positioning block 504, the second positioning cylinder 505 and the insert rod 506 limit the end of the paint-removed end of the copper wire 6 to limit the paint-removed end of the copper wire 6 from two aspects, ensuring the accuracy of positioning the paint-removed end, and thus ensuring the accuracy of subsequent paint scraping.

[0043] The specific length of the paint removal end is determined according to actual needs. The length of the pressing block 503 is not less than the length of the paint removal end to ensure the flatness and strength of the paint removal end after being pressed by the pressing block 503, so as to facilitate the paint scraper 101 to scrape the paint on the paint removal end.

[0044] Further, in order to improve the adaptability of the device, the pressing block 503 is detachably connected to a connecting rod 510, and the connecting rod 510 is fixedly connected to the cylinder head of the positioning cylinder 502. The pressing block 503 can be connected to the connecting rod 510 in any suitable manner. The replaceability of the pressing block 503 allows the pressing block 503 to be replaced according to the required length of different paint removal ends to ensure the adaptability between the pressing block 503 and the copper wire 6.

[0045] Similarly, a stop block 511 adapted to the pressing block 503 is detachably fixed on the end surface of the first end of the second positioning block 504, and the top surface of the stop block 511 constitutes the positioning step surface 508 to cooperate with the pressing block 503 to limit the paint-removed end of the copper wire 6. The stop block 511 can be fixedly connected to the end surface of the first end of the second positioning block 504 in any suitable manner. The replaceability of the stop block 511 can always ensure the adaptability with the pressing block 503 to accurately position the paint-removed end of the copper wire 6.

[0046] Furthermore, a recess 509 matching the outer contour of the copper wire 6 is formed on the outer side of the bottom of the pressing block 503, and the recess 509 is engaged with the inner side of the copper wire 6 to limit the end face of the paint-removed end of the copper wire 6 to protrude outward from the side of the positioning step surface 508, so as to facilitate the paint scraping operation of the paint scraper 101.

[0047] The first positioning block 501 is preferably C-shaped to facilitate the horizontal setting of the second positioning block 504, so that a C-shape with an opening is also formed between the positioning step surface 508 and the first positioning block 501 to facilitate the placement of the copper wire 6. The positioning step surface 508 is a smooth surface that is slidably connected to the end face of the copper wire 6 to avoid unnecessary wear on the copper wire 6 and facilitate the second positioning block 504 to slide relative to the copper wire 6 to position its end. The extension direction of the copper wire 6 is opposite to the moving direction of the paint scraper 101 to ensure that the paint scraping of the paint scraper 101 will not affect the position of the paint removal end. In order to ensure the stability of the movement of the pressing block 503 and the insertion rod 506, the first positioning block 501 is also provided with a guide hole that is compatible with the rod portion of the connecting rod 510 and the insertion rod 506.

[0048] The knife seat 1 is detachably fixed on the inner side surface of the first connecting block 202. An inclined extending groove 102 is provided on the inner side surface of the knife seat 1. The paint scraper 101 is fixed in the groove 102 and extends in the same direction therewith, so that the blade of the paint scraper 101 protrudes out of the groove 102 to facilitate the paint scraping operation of the paint scraper 101.

[0049] The paint scraping method according to the high-precision paint scraping device as described above comprises the following steps:

[0050] S1, placing the paint-stripped end of the copper wire 6 on the positioning step surface 508, and then starting the first positioning cylinder 502 to press the pressing block 503 to limit the vertical position of the paint-stripped end;

[0051] S2, start the second positioning cylinder 505 to press down the insertion rod 506 to drive the second positioning block 504 to slide, so that the positioning step surface 508 abuts against the paint stripping end to define the horizontal position of the paint stripping end;

[0052] S3, start the first electric cylinder 201 and the second electric cylinder 203 at the same time, the first electric cylinder 201 drives the first connecting block 202 to move axially to drive the knife holder 1 to move axially synchronously, so that the blade of the paint scraper 101 is aligned with the starting position of the paint removal end, so as to limit the paint scraping length of the paint scraper 101; at the same time, the second electric cylinder 203 drives the second connecting block 204 to move axially to drive the first connecting block 202 to move radially synchronously, so as to adjust the distance between the blade of the paint scraper 101 and the end face of the paint removal end, so as to limit the paint scraping depth of the paint scraper 101; in this process, the first connecting block 202 and the second connecting block 204 are slidably connected, so as to form stepless adjustment in the radial and axial directions of the paint scraper movement;

[0053] S4, starting the first electric cylinder 201 to drive the first connecting block 202 to move axially in the reverse direction to drive the paint scraper 101 to complete the paint scraping operation on the paint removal end.

[0054] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0055] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-precision paint scraping device, comprising a positioning mechanism, a knife holder (1) and a driving mechanism, characterized in that: The positioning mechanism is used to clamp the paint-removed end of the copper wire (6) and limit the paint-removed end to extend straight, the knife seat (1) is fixedly provided with a paint scraper (101) facing the paint-removed end, the driving mechanism comprises a first driving mechanism and a second driving mechanism, the first driving mechanism comprises a first electric cylinder (201) and a first connecting block (202) driven by the first electric cylinder to move axially, the knife seat (1) is fixedly provided on the inner side surface of the first connecting block (202), and the two move axially relative to the paint-removed end synchronously to limit the paint scraping length of the paint scraper (101); the second driving mechanism comprises a second electric cylinder (203) and a second connecting block (204) driven by the second electric cylinder to move axially , one side of the second connecting block (204) is slidably connected to the outer side of the first connecting block (202), and the two are axially moved respectively, and at the same time, the other side of the second connecting block (204) is slidably attached to a guide inclined surface, so that the second connecting block (204) moves axially relative to the first connecting block (202) while driving the first connecting block (202) to synchronously move radially relative to the paint removal end, so as to limit the paint scraping depth of the paint scraper (101); and also includes a fixing plate (4), a fixing block (402) is fixedly provided on the fixing plate (4), and a first guide slot (402) is concavely provided in the fixing block (402) and extends obliquely in the axial direction. 403), the guide bevel is the inner groove surface of the first guide slot (403), the side of the second connecting block (204) is slidably embedded in the first guide slot (403), and is slidably fitted with the guide bevel so as to slide along the guide bevel; a second guide slot (208) extending straightly in the axial direction is concavely provided on the other side of the second connecting block (204), and a connecting ridge (207) matching the second guide slot (208) is formed on the outer side surface of the first connecting block (202), and the connecting ridge (207) is slidably arranged in the second guide slot (208), so that the first connecting block (202) and the second The connecting block (204) can slide axially independently relative to each other; the positioning mechanism at least comprises a first positioning block (501), a first positioning cylinder (502) and a pressing block (503); the first positioning block (501) is fixedly arranged on the fixing plate (4); the first positioning cylinder (502) is arranged above the first positioning block (501); the pressing block (503) is fixedly connected to a cylinder head of the first positioning cylinder (502); the cylinder head moves vertically relative to the first positioning block (501) to drive the pressing block (503) to move relative to the first positioning block (501) to cooperate with the first positioning block (501) to clamp or release the copper wire (6).

2. The high-precision paint scraping device according to claim 1, characterized in that: The first driving mechanism and the second driving mechanism are arranged in parallel. The first electric cylinder (201) and the first connecting block (202), and the second electric cylinder (203) and the second connecting block (204) are connected via a movable connecting member. The movable connecting member comprises a moving member (205) and a connecting seat (206). The front ends of the first electric cylinder (201) and the second electric cylinder (203) are respectively fixedly connected to the rear end of a moving member (205). The rear ends of the first connecting block (202) and the second connecting block (204) are respectively fixedly connected to a connecting seat (206). A radially extending sliding groove (2061) is arranged in the connecting seat (206). The front end of the moving member (205) is slidably embedded in the sliding groove (2061) and moves radially along the sliding groove (2061), so that the first connecting block (202) and the second connecting block (204) can move radially relative to the first electric cylinder (201) and the second electric cylinder (203).

3. The high-precision paint scraping device according to claim 2, characterized in that: The positioning mechanism further comprises a second positioning block (504), a second positioning cylinder (505), and an insert rod (506); the second positioning block (504) is axially slidably arranged in the first positioning block (501); the first end of the second positioning block (504) is directly opposite to the pressing block (503); and the first end face of the second positioning block (504) is lower than the end face of the second end thereof, forming a positioning step face (508) adapted to the end of the copper wire (6); the second positioning cylinder (505) is arranged above the first positioning block (501); The insertion rod (506) is fixedly connected to the cylinder head of the second positioning cylinder (505) and is driven by the insertion rod to move vertically relative to the second end of the second positioning block (504); an obliquely extending insertion hole (507) is provided in the second end of the second positioning block (504); the bottom of the insertion rod (506) has an inclined block adapted to the insertion hole (507) so as to be inserted into the insertion hole (507) to drive the second positioning block (504) to move axially along the first positioning block (501), so that the positioning step surface (508) defines the end of the copper wire (6).

4. The high-precision paint scraping device according to claim 3, characterized in that: The pressing block (503) is detachably connected to a connecting rod (510), and the connecting rod (510) is fixedly connected to the cylinder head of the positioning cylinder (502). A recess (509) matching the outer contour of the copper wire (6) is formed on the outer side of the bottom of the pressing block (503), and the recess (509) is clamped with the inner side of the copper wire (6) to limit the end surface of the paint-removed end of the copper wire (6) to protrude from the side of the positioning step surface (508).

5. The high-precision paint scraping device according to claim 4, characterized in that: A limiting block (511) adapted to the pressing block (503) is detachably fixedly mounted on the end surface of the first end of the second positioning block (504); the top surface of the limiting block (511) forms the positioning step surface (508) to cooperate with the pressing block (503) to limit the paint-removed end of the copper wire (6).

6. The high-precision paint scraping device according to claim 5, characterized in that: The knife seat (1) is detachably fixed on the inner side surface of the first connecting block (202); an inclined extending groove (102) is provided on the inner side surface of the knife seat (1); the paint scraper (101) is fixed in the groove (102) and extends in the same direction as the groove, so that the blade of the paint scraper (101) protrudes out of the groove (102).

7. The paint scraping method according to any one of claims 3 to 6, characterized in that: The steps include: S1, placing the paint-stripped end of the copper wire (6) on the positioning step surface (508), and then starting the first positioning cylinder (502) to press the pressing block (503) downward to limit the vertical position of the paint-stripped end; S2, starting the second positioning cylinder (505) to press down the insertion rod (506) to drive the second positioning block (504) to slide, so that the positioning step surface (508) abuts against the paint stripping end to define the horizontal position of the paint stripping end; S3, simultaneously starting the first electric cylinder (201) and the second electric cylinder (203), wherein the first electric cylinder (201) drives the first connecting block (202) to move axially to drive the knife holder (1) to move axially synchronously, so that the blade of the paint scraper (101) is aligned with the starting position of the paint removal end, so as to limit the paint scraping length of the paint scraper (101); at the same time, the second electric cylinder (203) drives the second connecting block (204) to move axially to drive the first connecting block (202) to move radially synchronously, so as to adjust the distance between the blade of the paint scraper (101) and the end face of the paint removal end, so as to limit the paint scraping depth of the paint scraper (101); during this process, the first connecting block (202) and the second connecting block (204) are slidably connected, so as to form stepless adjustment in the radial and axial directions of the paint scraper movement; S4, starting the first electric cylinder (201) to drive the first connection block (202) to move axially in the reverse direction to drive the paint scraper (101) to complete the paint scraping operation on the paint removal end.

Images