Machining plane grinding auxiliary device and method

Abstract

The invention relates to the technical field of plane grinding, and discloses a machining plane grinding auxiliary device and method.The machining plane grinding auxiliary method comprises the steps that 1, installation is conducted, specifically, the auxiliary device is installed on the neck of a grinding tool, and a grinding material is installed below the grinding tool; 2, adjustment is conducted, specifically, according to the positions and areas of the to-be-polished plane and the positioning plane, the height of the abrasive and the height of the positioning assembly are adjusted in an adjusting mode, and the bottom of the positioning assembly and the positioning plane are located on the same plane; input power is connected, the grinding material and the positioning assembly are kept to have certain pressure on the plane, and the plane to be ground is ground in a sliding mode according to the grinding direction; 4, detection is conducted, specifically, the flatness and roughness of the to-be-polished plane are detected; if not, repeating the steps 1-4; and if qualified, polishing is completed. According to the grinding tool, it is ensured that grinding is in a measurable, adjustable and controllable stable state, the grinding tool can be suitable for various grinding environment requirements, the high-precision and high-flatness grinding requirements are met, the grinding universality of the grinding tool is improved, and the production cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of plane grinding processing, and in particular to a machined plane grinding auxiliary device and method. Background Art

[0002] In the product machining process, the limitations of blank manufacturing and non-destructive testing technology may lead to unqualified defects such as pores and inclusions on the machining surface of some products. For these non-standard defects, they need to be removed and welded first, and then re-machined or polished to ensure that the plane meets the required dimensional accuracy, flatness and surface roughness standards.

[0003] However, in actual operations, when faced with such planar defects, considering the time-consuming clamping and positioning, production delays, product transportation costs, and labor costs caused by re-machining, when the area of ​​the planar defect is small, grinding is usually preferred to repair the welded area after welding. However, if the dimensional accuracy and flatness requirements of the plane are high, although the grinding method seems to be a fast and economical choice, due to the high-frequency vibration of the grinding tool, it is difficult to effectively control the stability of the grinding tool during the grinding process, especially when grinding surfaces with special structures and shapes. The control of the grinding angle and direction during the grinding process still needs to rely on the rich experience of the operator. However, this experience often varies from person to person, resulting in poor versatility and stability of the grinding method, further increasing the difficulty of achieving high precision and flatness requirements. Summary of the invention

[0004] The present invention aims to provide a machined surface grinding auxiliary device and method to solve the problems in the prior art of high-precision and flatness grinding, such as high grinding difficulty, poor grinding tool stability, and difficulty in meeting processing requirements, thereby improving grinding efficiency, reducing production costs and shortening production cycles.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme, a machine-added plane grinding auxiliary method, which flexibly adjusts the support position, quantity and height according to the shape of the surface to be ground, meets various grinding plane requirements, ensures the stability of the grinding tool, can perform grinding work with higher requirements, and has high versatility, and includes the following steps:

[0006] Step 1, installation: install the auxiliary device on the neck of the abrasive tool, and install the abrasive under the abrasive tool so that the abrasive is located below the auxiliary device;

[0007] Step 2, adjustment: according to the position and area of ​​the plane to be polished and the positioning plane, adjust the height of the abrasive and the positioning assembly of the auxiliary device according to the set adjustment method, so that the bottom plane of the abrasive and the plane to be polished are on the same plane, and the bottom of the positioning assembly and the positioning plane are on the same plane;

[0008] Step 3, grinding: connect the input power, keep the abrasive and positioning components with a certain pressure on the plane, and grind the plane to be grinded according to the set grinding direction;

[0009] Step 4, inspection: Check the flatness and roughness of the surface to be polished; if unqualified, repeat steps 1-4 according to the set requirements; if qualified, the polishing is completed.

[0010] Furthermore, in step 2, the adjustment method includes the following two methods:

[0011] Method 1: When the bottom plane of the abrasive is smaller than the plane to be polished, and the plane to be polished and the positioning plane are on the same plane, adjust the bottom of the abrasive and the bottom of the positioning assembly to be on the same plane as the plane to be polished;

[0012] Method 2: When the bottom plane of the abrasive is not smaller than the plane to be polished, and the plane to be polished and the positioning plane are not in the same plane, adjust the bottom plane of the abrasive to be in the same plane as the plane to be polished, and adjust the bottom of the positioning assembly to be in the same plane as the positioning plane.

[0013] Furthermore, in step 2, it also includes adjusting the number and position of the positioning components so that the bottom plane of the abrasive and the plane to be polished are on the same plane.

[0014] Further, in step 3, the grinding direction is set in the direction of the notch end of the auxiliary device.

[0015] Furthermore, in step 4, when the inspection fails, the following rectification methods are adopted:

[0016] If the flatness is not up to standard, repeat step 2, and perform step 3 2-3 times before performing step 4;

[0017] When the roughness is unqualified, repeat steps 1 and 2 after replacing the abrasive, and proceed to step 4 after performing step 3 2-3 times.

[0018] Furthermore, the number of positioning components is ≥3.

[0019] Another object of the present invention is to provide a machined surface grinding auxiliary device, which is used for the above-mentioned machined surface grinding auxiliary method, including a main board structure, a center hole is provided in the middle of the main board structure for locating the main board structure on the neck of the mold; an adjustment groove is provided on the periphery of the main board structure, and a plurality of positioning components are provided in the adjustment groove; the positioning component includes a positioning rod, a ball contacting the positioning plane is provided at the lower end of the positioning rod, and an adjustment component is provided at the upper end of the positioning rod, and the adjustment component is arranged in the adjustment groove.

[0020] Furthermore, the adjustment component includes an adjustment block, the adjustment block is arranged in the adjustment slot, and a locking block is provided on the adjustment block, and the locking block is arranged on the adjustment slot.

[0021] Furthermore, a spherical groove is provided at the bottom of the positioning rod, and the ball is arranged in the spherical groove.

[0022] Furthermore, the main board structure includes a notched end and an arc-shaped end, and the adjustment groove is arranged on one side of the arc-shaped end.

[0023] The principles and advantages of this solution are:

[0024] In actual operations, in the face of plane defects in processing and production, in order to reduce the time-consuming clamping and positioning, production delays, product transportation and other factors caused by mechanical processing, when the defective plane is small, grinding will be chosen to repair it, and mechanical processing is generally not considered. However, when the accuracy and flatness requirements are high, it is difficult to achieve the welding requirements through grinding, resulting in the existing grinding methods being difficult to apply to high-precision grinding requirements, thereby making the cost of repair welding high, or it is difficult to improve product quality through grinding.

[0025] In the face of the above problems caused by the grinding method, most of the existing methods require operators to grind accurately multiple times and rely on operating experience to overcome the problems caused by the grinding process. This undoubtedly consumes a lot of energy and time costs of operators, and it is also difficult to achieve stability and universality. But even so, it still cannot overcome its fundamental problem: the instability caused by the high-frequency jitter of the mold itself, which makes the grinding operation more difficult.

[0026] This scheme is aimed at metal products with high dimensional accuracy and flatness, and designs a machine-added flat surface grinding auxiliary device and method. By installing the mainboard structure on the neck of the mold and fixing it, the convenience of the auxiliary device is improved. At the same time, by flexibly adjusting the extension length of the positioning component, the height positioning on the grinding plane is ensured, and the number and position of the positioning components can be set according to the grinding environment, so as to ensure that the abrasive is always in the same stable plane during the grinding process, improve the versatility of the auxiliary device, and effectively reduce the offset caused by the jitter of the mold itself, so as to ensure that the grinding is always in a measurable and adjustable stable state, so as to meet the grinding requirements of high precision and high flatness, reduce the difficulty of grinding operation, thereby saving the need for complex machining links, shortening the production cycle, and reducing production costs. At the same time, this scheme can be used to grind planes that have no defects but the surface roughness does not meet the requirements or have welding spatter and rust, and can ensure its flatness and roughness. It can be used for machine-added flat surface black skin grinding with low dimensional accuracy requirements. It has a wide range of applications, high versatility, more convenient operation, and effectively improves the overall grinding production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The present invention is a schematic diagram of the process flow of a machining surface grinding auxiliary method.

[0028] Figure 2 This is a structural schematic diagram of application scenario 1 of a machining surface grinding auxiliary method of the present invention.

[0029] Figure 3 This is a structural schematic diagram of application scenario 2 of a machining surface grinding auxiliary method of the present invention.

[0030] Figure 4 This is a structural schematic diagram of application scenario three of a machining surface grinding auxiliary method of the present invention.

[0031] Figure 5 It is a structural schematic diagram of a machined surface grinding auxiliary device of the present invention.

[0032] Figure 6 The present invention is a schematic structural diagram of a positioning assembly of a machined surface grinding auxiliary device. DETAILED DESCRIPTION

[0033] The following is further described in detail through specific implementation methods:

[0034] The figure marks in the drawings of the specification include: auxiliary device 1, grinding tool 2, abrasive 3, positioning assembly 4, positioning plane 5, notched end 6, arc end 7, main board structure 8, center hole 9, adjustment groove 10, positioning rod 11, ball 12, adjustment assembly 13, adjustment block 14, locking block 15, locking structure 16, annular hoop 17, connecting rod 18.

[0035] Embodiment 1

[0036] This embodiment is basically as shown in the attached Figure 1 As shown, a machined surface grinding auxiliary method ensures the stability of the grinding tool during the grinding process, meets the processing requirements of high precision and flatness, improves the versatility of the grinding tool, and improves the grinding efficiency. It includes the following steps:

[0037] S1, installation:

[0038] Combined with Figure 2 As shown, the auxiliary device 1 is fixedly installed on the neck of the mold 2 by fastening bolts, and the abrasive 3 is installed below the mold 2 so that the abrasive 3 is located below the auxiliary device 1 and the outer side of the auxiliary device 1 is placed outside the abrasive 3.

[0039] S2, regulation:

[0040] After the auxiliary device 1 is installed, according to the position and area of ​​the bottom surface of the abrasive 3 and the positioning plane 5, the position of the abrasive 3 and the height of the positioning component 4 on the auxiliary device 1 are adjusted with the help of the positioning plane 5 (such as a qualified machined plane or scribing platform, as long as it can meet the flatness adjustment requirements) in accordance with the set adjustment method, so that the bottom surface of the abrasive 3 and the surface to be polished are on the same plane.

[0041] In this embodiment, the number, position and height of the positioning components 4 are adjusted according to the relative position and area size of the bottom surface of the abrasive 3 and the positioning plane 5, so that the bottom surface of the abrasive 3 and the plane to be polished are on the same plane, and the positioning components and the positioning plane 20 are on the same plane, wherein the number of positioning components 4 is ≥3 to ensure the stability of the positioning components 4.

[0042] Specifically, the adjustment methods include the following two:

[0043] Method 1, as attached Figure 2 As shown, when the available positioning plane 20 is at the same height as the plane to be polished, and the bottom plane of the abrasive is smaller than the plane to be polished, that is, the positioning plane 5 has enough space to place the bottom of the positioning component 4 entirely on the positioning plane 5, at this time, the bottom of the positioning component 4 and the bottom of the abrasive are adjusted to be on the same plane as the positioning plane 5.

[0044] At the same time, in this embodiment, the number of positioning components 4 can also be selected and set according to the area of ​​the positioning plane 5. Figure 2 As shown, three positioning components 4 can be set respectively at three positions of the surface to be polished to ensure stability. Figure 3 As shown, when the available positioning plane 20 is small in area but wide on both sides, four positioning components 4 can be provided to ensure stability during grinding, and are respectively installed on both sides of the surface to be ground. The number and position of the positioning components 4 can be flexibly set according to the grinding environment to ensure grinding accuracy and stability.

[0045] Method 2, as attached Figure 4 As shown, when the available positioning plane 20 is not at the same height as the plane to be polished, and the bottom plane of the abrasive is not smaller than the plane to be polished, that is, the area of ​​the plane to be polished is too small and the area of ​​the abrasive is large, the bottom of the positioning component 4 cannot be adjusted to a plane at the same height as the plane to be polished for auxiliary positioning, and the positioning plane 5 is lower than the plane to be polished, so that the positioning plane 5 and the plane to be polished are stepped. At this time, the bottom of the abrasive 3 is adjusted to be on the same plane as the plane to be polished, and the bottom of the positioning component 4 is adjusted to be on the same plane as the positioning plane 5. The height of the positioning component 4 is adjusted to meet the needs of the abrasive 3 to adapt to different shapes and positions of the polishing surface, thereby ensuring the stability and operability of the abrasive 2.

[0046] At the same time, in this embodiment, multiple positioning components 4 can also be set according to the specific grinding environment. For example, in this embodiment, in order to ensure the stability of the mold 2 during the grinding process and reduce shaking, five positioning components 4 can be set and distributed around the surface to be polished. By flexibly adjusting the position, number and height of the positioning components 4, it can be applied to a variety of grinding structures and grinding areas, so as to be used for the grinding of special-shaped structures, and realize economical and effective rapid grinding operations. At the same time, it can also ensure the stability of the mold 2 during the grinding process, improve the grinding accuracy and flatness, and reduce the difficulty of manual operation and improve versatility.

[0047] S3, polishing:

[0048] After the various structures of the auxiliary device 1 are assembled and adjusted, external power is input according to the type of the grinding tool 2. In this embodiment, air pressure, electricity, etc. can be used to rotate the abrasive (such as grinding wheel, flap blade, wire wheel, etc.) to grind the surface to be polished.

[0049] After connecting the input power, while maintaining a certain pressure of the abrasive 3 and the positioning assembly 4 on the plane (including the plane to be polished and the positioning plane 5), the plane to be polished is slid and polished according to the set polishing direction. In this embodiment, the polishing direction is the setting direction of the notch end 6 of the auxiliary device.

[0050] As attached Figure 2 As shown, the auxiliary device 1 includes a notch end 6 and an arc end 7, and the positioning component 4 is installed on one side of the arc end 7. When grinding, the notch end 6 is directed toward the direction of the surface to be grinded to avoid the boss structure on the grinding plane blocking the positioning component 4, so that the boss corner cannot be grinded, so as to ensure the smoothness and convenience of the grinding process. If the current surface to be grinded will not be interfered by the protrusion of the workpiece structure, it is not necessary to grind in the notch direction. The specific details are subject to the actual operation and are not limited here.

[0051] S4, detection:

[0052] Check the flatness and roughness of the surface to be polished; if unqualified, repeat steps 1-4 according to the set requirements; if qualified, the polishing is completed.

[0053] In this embodiment, when the inspection fails, the following rectification method is adopted:

[0054] (1) When the flatness is not up to standard, repeat S2, and perform S3 2-3 times before performing S4. That is, when the flatness does not meet the requirements, it is necessary to re-adjust the steps according to the corresponding adjustment method to ensure the flatness of the positioning component 4, and then perform the grinding steps 2-3 times and perform the test again until it is qualified.

[0055] (2) When the roughness is not up to standard, replace the abrasive and repeat S1 and S2, and perform S3 2-3 times before performing S4. That is, when the roughness does not meet the requirements, it is necessary to replace the new abrasive 3 or the abrasive type (such as replacing the grinding wheel with a flapper), and then reinstall and adjust it, perform 2-3 grinding steps, and perform the test again until the test is qualified, and the grinding is completed.

[0056] In this embodiment, the height positioning of the abrasive 3 on the grinding plane is ensured by adjusting the extended length of the positioning component 4, so that the abrasive 3 can grind the grinding plane while ensuring stability. At the same time, the number and position of the positioning components 4 can be flexibly adjusted according to the grinding environment, so as to ensure that the abrasive 3 is always in the same stable plane during the grinding process, reduce the deviation caused by the shaking of the grinding tool 2 itself, and ensure that the grinding is always in a measurable and controllable stable state. It can be applicable to various grinding environment requirements and meet the requirements of high-precision and high-flatness grinding, improve the versatility of grinding tool grinding, reduce the difficulty of grinding operation, thereby saving the need for complex machining links, shortening the production cycle, reducing production costs, and effectively improving grinding production efficiency.

[0057] Embodiment 2

[0058] In this embodiment, a machined surface grinding auxiliary device is also provided, which is applied to the grinding auxiliary method in the first embodiment, as shown in the attached Figure 2 As shown, the auxiliary device 1 includes a main plate structure 8 installed at the neck position of the mold 2 by bolts. The main plate structure 8 includes a notch end 6 and an arc end 7. In this embodiment, the notch end 6 is a planar structure, and the arc end 7 is an arc structure. Figure 5 As shown, a center hole 9 for mounting the main board structure 8 on the neck of the mold 2 is opened in the middle of the main board structure 8 .

[0059] An adjustment groove 10 is provided on the periphery of the main plate structure 8, and the adjustment groove 10 is opened on one side of the arc end 7, that is, the adjustment groove 10 is arranged circumferentially around the arc end 7. A plurality of positioning components 4 are movably installed in the adjustment groove 10, and the positioning components 4 can slide in the adjustment groove 10 and can move up and down in the adjustment groove 10 to adjust the height of the positioning components 4.

[0060] In this embodiment, as shown in the attached Figure 6As shown, the positioning assembly 4 includes a positioning rod 11 installed in the adjustment groove 10, and a ball 12 in contact with the positioning plane 5 is provided at the lower end of the positioning rod 11. In this embodiment, a spherical groove with a diameter consistent with the diameter of the ball 12 and a volume slightly larger than the hemisphere of the ball 12 is opened at the bottom of the positioning rod 11, so that the ball 12 can be directly stuck in the spherical groove by pressing it in, and the ball 12 can roll in all directions in the spherical groove without damaging the surface of the workpiece. By holding the grinding tool, the whole including the grinding tool 2, the abrasive 3 and the auxiliary device 1, the ball 12 is pressed on the positioning plane 5, facing the grinding direction, and the grinding is completed when the abrasive contacts the weld scar.

[0061] An adjustment component 13 is provided at the upper end of the positioning rod 11, and the adjustment component 13 is installed in the adjustment groove 10. Specifically, the adjustment component 13 includes an adjustment block 14, and the adjustment block 14 is installed in the adjustment groove 10. A locking block 15 is provided on the adjustment block 14, and the locking block 15 is arranged on the adjustment groove 10. In this embodiment, the locking block 15 adopts a locking nut, and the internal threads of the positioning rod 11 and the adjustment block 14 are connected by threads. Under the connection of the adjustment block 14, the positioning rod 11 adjusts the extension length by rotating itself to achieve height adjustment. The external thread of the adjustment block 14 is locked to the main board structure 8 through a threaded connection with the locking block 15. The height of the adjustment groove 10 from the plane is adjusted by rotating the positioning rod 11 itself, and the adjusted position of the positioning rod 11 is locked by the locking block 15 to ensure the flatness and stability during the grinding process.

[0062] At the same time, a locking structure 16 is installed above the main board structure 8 to sleeve the main board structure 8 on the neck of the mold 2. Figure 5 As shown, the locking structure 16 is arranged above the main structure 8, including two annular hoops 17 arranged opposite to each other, and is fastened to the neck of the mold 2 by fastening bolts. A connecting rod 18 is also integrally formed at the lower end of the annular hoop 17 on one side, so that the locking structure 16 is connected to the main structure 8 through the connecting rod 18, thereby connecting and fixing the main structure 8 to the locking structure 16, so as to facilitate installation and disassembly operations, and improve the overall convenience and efficiency of operation.

[0063] For the problem that the plane grinding accuracy does not meet the requirements, in addition to re-processing on the machine tool, a special grinder can also be designed according to the shape of the workpiece. However, this grinder can only be used for a certain type or a certain batch of products. It is not suitable for products with large size differences or small batches. It has poor versatility and high manufacturing costs. Compared with special grinders, this solution has low production and maintenance costs, is easy to move, has low requirements for the environment and operation, and can be structurally adjusted according to actual conditions. It can better adapt to the complex production environment on site, and has greatly improved economy and applicability.

[0064] The above is only an embodiment of the present invention, and the common knowledge such as the known specific technical solutions and / or characteristics in the solution is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A method for auxiliary grinding of machined surface. It is characterized in that The following steps are included: Step 1, installation: install the auxiliary device on the neck of the abrasive tool, and install the abrasive under the abrasive tool so that the abrasive is located below the auxiliary device; Step 2, adjustment: according to the position and area of ​​the plane to be polished and the positioning plane, adjust the height of the abrasive and the positioning assembly of the auxiliary device according to the set adjustment method, so that the bottom plane of the abrasive and the plane to be polished are on the same plane, and the bottom of the positioning assembly and the positioning plane are on the same plane; Step 3, grinding: connect the input power, keep the abrasive and positioning components with a certain pressure on the plane, and grind the plane to be grinded according to the set grinding direction; Step 4, inspection: Check the flatness and roughness of the surface to be polished; if unqualified, repeat steps 1-4 according to the set requirements; if qualified, the polishing is completed.

2. A machining surface grinding auxiliary method according to claim 1, Features: In step 2, the adjustment methods include the following two: Method 1: When the bottom plane of the abrasive is smaller than the plane to be polished, and the plane to be polished and the positioning plane are on the same plane, adjust the bottom of the abrasive and the bottom of the positioning assembly to be on the same plane as the plane to be polished; Method 2: When the bottom plane of the abrasive is not smaller than the plane to be polished, and the plane to be polished is not in the same plane as the positioning plane, adjust the bottom plane of the abrasive to be in the same plane as the plane to be polished, and adjust the bottom of the positioning assembly to be in the same plane as the positioning plane.

3. A machining surface grinding auxiliary method according to claim 1, Features: In step 2, the number and position of the positioning components are also adjusted to make the bottom plane of the abrasive and the plane to be polished be on the same plane.

4. A machining surface grinding auxiliary method according to claim 1, Features: In step 3, the grinding direction is set in the direction of the notched end of the auxiliary device.

5. A machining surface grinding auxiliary method according to claim 1, Features: In step 4, if the inspection fails, the following corrective measures are taken: If the flatness is not up to standard, repeat step 2, and perform step 3 2-3 times before performing step 4; When the roughness is unqualified, repeat steps 1 and 2 after replacing the abrasive, and proceed to step 4 after performing step 3 2-3 times.

6. A machining surface grinding auxiliary method according to claim 3, Features: The number of positioning components is ≥3.

7. A machined surface grinding auxiliary device, It is characterized in that An auxiliary method for machining surface grinding applied to any one of claims 1-6, comprising a main board structure, wherein a center hole for locating the main board structure on the neck of the mold is provided in the middle of the main board structure; an adjustment groove is provided on the periphery of the main board structure, and a plurality of positioning components are provided in the adjustment groove; the positioning component comprises a positioning rod, a ball contacting the positioning plane is provided at the lower end of the positioning rod, and an adjustment component is provided at the upper end of the positioning rod, and the adjustment component is arranged in the adjustment groove.

8. A machined surface grinding auxiliary device according to claim 7, Features: The adjusting component comprises an adjusting block, wherein the adjusting block is arranged in the adjusting slot, and a locking block is arranged on the adjusting block, wherein the locking block is arranged on the adjusting slot.

9. A machined surface grinding auxiliary device according to claim 7, Features: A spherical groove is arranged at the bottom of the positioning rod, and the ball is arranged in the spherical groove.

10. A machined surface grinding auxiliary device according to claim 7, Features: The main board structure comprises a notch end and an arc-shaped end, and the adjustment groove is arranged on one side of the arc-shaped end.

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