A universal joint fork flash grinding device

Abstract

The present invention discloses a burr grinding device for a universal joint fork, which belongs to the field of grinding devices. The burr grinding device for a universal joint fork comprises: a grinding platform, a universal joint fork blank and a grinding product are stacked on both sides of the grinding platform, and a clamping mechanism is provided on the upper surface of the grinding platform; a cantilever, the lower end of the cantilever is fixedly connected to one end of the grinding platform; a lifting hydraulic cylinder, the upper end of the lifting hydraulic cylinder is fixedly connected to the end of the cantilever away from the grinding platform, and the lower end of the lifting hydraulic cylinder is provided with a locking mechanism; a sleeve, the upper end of the sleeve is connected to the output end of the lifting hydraulic cylinder and is connected to the locking mechanism; a grinding seat ring, the upper end of the grinding seat ring is welded to the end of the sleeve away from the lifting hydraulic cylinder; and a grinding ear, which can realize automatic and integrated burr grinding without the need for secondary clamping of the universal joint fork blank, has high consistency in appearance, and is convenient for improving the efficiency of burr grinding for the universal joint fork.

Description

Technical Field

[0001] The present invention relates to the field of grinding devices, and more particularly to a universal joint fork flash grinding device. Background Art

[0002] Due to its structural characteristics, the universal joint fork is often forged in an open forging method. That is, after the upper and lower dies are closed, excess metal will flow out from the closing surface to form flash. The flash will be directly removed by the trimming die for cold work. However, due to long-term trimming work, the clearance between the upper and lower cutting edges of the trimming die is uneven, and flash or burrs are likely to remain after trimming.

[0003] The remaining burrs or burrs can easily cause scratches on the hands during manual handling. At the same time, larger burrs affect the subsequent processing of the universal joint fork. Manual grinding is often used, which is inefficient and has poor appearance consistency. It is necessary to design a universal joint fork burr grinding device to improve the grinding efficiency. Summary of the Invention

[0004] 1. Technical problems to be solved

[0005] In response to the problems existing in the prior art, the purpose of the present invention is to provide a universal joint fork flash grinding device, which can automatically grind the flash in one piece without the need for secondary clamping of the universal joint fork blank, has high consistency in appearance, and facilitates improving the efficiency of universal joint fork flash grinding.

[0006] 2. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A universal joint fork flash grinding device, comprising:

[0009] Grinding platform, with universal joint fork blanks and grinding products stacked on both sides of the grinding platform, and a clamping mechanism is provided on the upper surface of the grinding platform;

[0010] A cantilever, the lower end of which is fixedly connected to one end of the polishing platform;

[0011] A lifting hydraulic cylinder, the upper end of which is fixedly connected to the end of the cantilever away from the grinding platform, and the lower end of which is provided with a locking mechanism;

[0012] a sleeve, the upper end of which is connected to the output end of the lifting hydraulic cylinder and is connected to the locking mechanism;

[0013] A grinding seat ring, the upper end of which is welded to an end of the sleeve away from the lifting hydraulic cylinder;

[0014] The grinding ears, one end of the two grinding ears are respectively welded to the two sides of the lower end of the grinding seat ring and are symmetrical to each other.

[0015] Furthermore, a retaining ring is welded on the inner side of the sleeve, and an elastic washer is bonded to the side of the retaining ring close to the grinding seat ring.

[0016] Furthermore, the clamping mechanism includes:

[0017] A concave die base, the lower end of which is fixedly connected to the upper surface of the polishing platform, the upper end of which is a concave structure, and both sides of which are provided with a tightening mechanism;

[0018] Installation grooves, two of which are respectively provided on both sides of the upper end of the concave mold base;

[0019] The guide wheel is rotatably mounted on the lower wall of the mounting groove, and its height is lower than the height of the concave part of the concave mold base.

[0020] Furthermore, the tightening mechanism includes:

[0021] A countersunk groove is provided on one side of the concave die base;

[0022] A micro hydraulic cylinder, one end of which is fixedly connected to the inner side of the countersunk groove, and the output end of which faces the opening of the countersunk groove;

[0023] A pressure plate, one side of which is welded to the output end of the micro hydraulic cylinder and is arranged inside the countersunk groove and can be pushed out by the output end of the micro hydraulic cylinder.

[0024] Furthermore, a controller for controlling the micro hydraulic cylinder is installed on the polishing platform, and the lower end of the controller is electrically connected to a foot switch.

[0025] Furthermore, an elastic plate is bonded to a side of the pressure plate away from the micro hydraulic cylinder, a friction plate is bonded to an outer side of the elastic plate, and a gap is left between the outer side of the friction plate and the inner wall of the countersunk groove.

[0026] Furthermore, the locking mechanism includes:

[0027] An inverted concave seat, the inverted concave seat being arranged at the lower end of the lifting hydraulic cylinder, the upper surface of the inverted concave seat being welded to the output end of the lifting hydraulic cylinder, and the opening of the inverted concave seat being downward;

[0028] A mounting plate, one end of which is inserted into the interior of the inverted concave seat, and the other end of which extends out of the interior of the inverted concave seat and is welded to the upper end of the sleeve;

[0029] The four locking bolts are respectively installed at the four corners of the lower surface of the inverted concave seat, and one end of the locking bolts is respectively threadedly connected to the four corners of the upper end of the mounting plate.

[0030] Furthermore, a plurality of threaded holes adapted to the locking bolts are provided at the upper end of the mounting plate, and the inner walls of the threaded holes are hardened.

[0031] Furthermore, waste residue grooves are provided on the upper surface of the polishing platform at positions on both sides of the clamping mechanism, a high-pressure air nozzle is fixedly installed at one end of the waste residue groove, and a woven bag is provided between the other ends.

[0032] Furthermore, two brackets are welded to one side of the polishing platform, and an opening iron ring for opening the woven bag is fixedly installed between the upper ends of the two brackets.

[0033] 3. Beneficial effects

[0034] Compared with the prior art, the advantages of the present invention are:

[0035] (1) When the present invention is working, a universal joint fork blank is turned upside down, and a clamping mechanism is inserted into the blank to fix it, so that the burrs on the outside of the blank and the two ears are suspended in the air, and then the sleeve is installed to the output end of the lifting hydraulic cylinder. The sleeve, grinding seat ring, grinding ear and blank are coaxial, and the two grinding ears are vertically facing the burrs of the two ears of the blank. The grinding seat ring and grinding ear are lowered by the lifting hydraulic cylinder, which drives the grinding part to rise and fall and repeatedly grind the burrs. The burrs can be automatically polished in one piece without the need for secondary clamping of the universal joint fork blank. The appearance is highly consistent, which facilitates improving the efficiency of universal joint fork burr grinding.

[0036] (2) When the present invention is clamping the universal joint fork blank, it is placed upside down on the upper surface of the grinding platform and buckled on the upper end of the concave mold base. The inner walls of the two ears contact the guide wheels in the installation groove. The rotation of the guide wheels will not hinder the descent of the blank, and can also straighten the blank so that the blank and the concave mold base are coaxial. The boss inside the blank is dropped into the concave part of the upper end of the concave mold base, and the clamping mechanism is started to press against the inner wall of the blank and fix it. The clamping is completed without repeated calibration, and the operation is simple, saving time and effort.

[0037] (3) When the present invention presses against the blank, one foot steps on the foot switch, so that the controller controls the output end of the micro hydraulic cylinder to be in an extended state, thereby starting the pressing mechanism and locking the blank. Conversely, when the foot leaves the foot switch, the controller controls the output end of the micro hydraulic cylinder to be shortened, and the pressing mechanism is dormant, which can release the locking state of the blank and free the hands of the staff to take and place the blank, which is beneficial to improving the efficiency of the staff in grinding the flash of the universal joint fork.

[0038] (4) When the present invention is working, the end of the mounting plate away from the sleeve is inserted into the opening of the inverted concave seat, the inverted concave seat and the mounting plate are connected with a locking bolt, and rotated forward to lock. Then, the sleeve, the grinding seat ring and the grinding ear can be installed to the output end of the lifting hydraulic cylinder. When the grinding seat ring and the grinding ear reach the wear limit due to friction, the locking bolt is reversed to release the lock of the inverted concave seat and the mounting plate, and the mounting plate is removed. Then, the grinding seat ring and the grinding ear can be quickly replaced, which takes up less grinding time. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic structural diagram of the main view of the present invention;

[0040] Figure 2 It is a schematic diagram of the structure of the present invention from a top view;

[0041] Figure 3 It is a schematic cross-sectional structural diagram of the present invention;

[0042] Figure 4 Schematic diagram of the cross-sectional structure of the inverted concave seat of the present invention;

[0043] Figure 5 For the present invention Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0044] Figure 6 For the present invention Figure 3 Schematic diagram of the enlarged structure at B in the middle;

[0045] Figure 7 For the present invention Figure 4 Schematic diagram of the enlarged structure at point C in the middle.

[0046] Description of the numbers in the figure:

[0047] 1. Grinding platform; 2. Cantilever; 3. Lifting hydraulic cylinder; 4. Sleeve; 5. Grinding seat ring; 6. Grinding ear; 7. Retaining ring; 8. Elastic washer; 9. Concave die base; 10. Mounting slot; 11. Guide wheel; 12. Countersunk slot; 13. Micro hydraulic cylinder; 14. Press plate; 15. Controller; 16. Foot switch; 17. Elastic plate; 18. Friction plate; 19. Inverted concave seat; 20. Mounting plate; 21. Locking bolt; 22. Threaded hole; 23. Waste slag groove; 24. High-pressure air nozzle; 25. Woven bag; 26. Bracket; 27. Open iron ring. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0049] Example:

[0050] See also Figure 1-7 , a universal joint fork flash grinding device, comprising:

[0051] Grinding platform 1, with universal joint fork blanks and grinding products stacked on both sides of the grinding platform 1, and a clamping mechanism provided on the upper surface of the grinding platform 1;

[0052] Cantilever 2, the lower end of the cantilever 2 is fixedly connected to one end of the polishing platform 1;

[0053] A lifting hydraulic cylinder 3, the upper end of which is fixedly connected to the end of the cantilever 2 away from the grinding platform 1, and a locking mechanism is provided at the lower end of the lifting hydraulic cylinder 3;

[0054] Sleeve 4, the upper end of the sleeve 4 is connected to the output end of the lifting hydraulic cylinder 3 and is connected to the locking mechanism;

[0055] Polish the seat ring 5. The upper end of the polished seat ring 5 is welded to the end of the sleeve 4 away from the lifting hydraulic cylinder 3. The lower edge of the inner wall is sprayed with a frosted coating.

[0056] The grinding ears 6 have one end which is welded to both sides of the lower end of the grinding seat ring 5 and is symmetrical to each other, and the inner wall of the grinding ears 6 is sprayed with a frosted coating.

[0057] When forging a universal joint fork blank, an open forging method is often used. The blank is forked and has a boss inside. That is, after the upper and lower molds are closed, excess metal will flow out from the mold surface to form flash. The flash will be directly removed by the trimming die for cold work. However, due to long-term trimming work, the gap between the upper and lower cutting edges of the trimming die is uneven, and flash or burrs are easily left after trimming, mainly concentrated on the outer side and the outer wall of the two ears. When the present invention is working, a universal joint fork blank is placed upside down on the upper surface of the grinding platform 1, and a clamping mechanism is used to extend into the interior of the blank to fix it, so that the burrs on the outer side of the blank and the two ears are suspended in the air, and then the locking mechanism is used to fix the blank. The upper end of the sleeve 4 is installed to the output end of the lifting hydraulic cylinder 3. The sleeve 4, the grinding seat ring 5, the grinding ear 6 and the blank are coaxial, and the two grinding ears 6 are vertically facing the burrs of the two ears of the blank. The grinding seat ring 5 and the grinding ear 6 are lowered by the lifting hydraulic cylinder 3, respectively sticking to the outer side of the blank and the burrs of the two ears, driving the grinding part to rise and fall and repeatedly grinding the burrs. The burrs can be automatically ground in one piece without the need for secondary clamping of the universal joint fork blank. The appearance is highly consistent, which facilitates improving the efficiency of the universal joint fork burr grinding. After the grinding is completed, the output end of the lifting hydraulic cylinder 3 is raised and reset, the clamping mechanism is released, and the blank can be removed.

[0058] See Figure 2 and Figure 5 , the clamping mechanism includes:

[0059] Concave die base 9, the lower end of the concave die base 9 is fixedly connected to the upper surface of the polishing platform 1, the upper end is a concave structure, and both sides of the concave die base 9 are provided with a tightening mechanism;

[0060] Mounting grooves 10, two mounting grooves 10 are respectively opened on both sides of the upper end of the concave mold base 9;

[0061] The guide wheel 11 is rotatably mounted on the lower wall of the mounting groove 10 through a rotating seat, and its height is lower than the height of the concave part of the concave mold base 9.

[0062] When clamping the universal joint fork blank of the present invention, it is placed upside down on the upper surface of the grinding platform 1 and buckled on the upper end of the concave mold base 9. The inner walls of the two ears contact the guide wheel 11 in the mounting groove 10. The rotation of the guide wheel 11 will not hinder the descent of the blank, and can also straighten the blank so that the blank and the concave mold base 9 are coaxial. The boss inside the blank falls into the concave part of the upper end of the concave mold base 9, and the tightening mechanism is started to tighten the inner wall of the blank and fix it. The clamping is completed without repeated calibration, simple operation, and time and labor saving.

[0063] See Figure 5 and Figure 6 , the tightening mechanism includes:

[0064] The countersunk groove 12 is provided on one side of the concave die base 9;

[0065] A micro hydraulic cylinder 13, one end of which is fixedly connected to the inner side of the countersunk groove 12, with the output end facing the opening of the countersunk groove 12;

[0066] The pressing plate 14 has one side welded to the output end of the micro hydraulic cylinder 13 and is disposed inside the countersunk groove 12 so as to be pushed out by the output end of the micro hydraulic cylinder 13 .

[0067] When the clamping mechanism is working, the output end of the micro hydraulic cylinder 13 is controlled to extend, pushing out the pressure plate 14 inside the countersunk groove 12, pressing against the two sides of the inner side of the blank, and locking it under the action of friction. Conversely, the output end is shortened, driving the pressure plate 14 to sink into the countersunk groove 12, and the lock can be released, making it convenient to take the blank.

[0068] See Figure 1 and Figure 2 A controller 15 for controlling the micro hydraulic cylinder 13 is installed on the grinding platform 1, and the lower end of the controller 15 is electrically connected to a foot switch 16. When the present invention presses against the blank, one foot steps on the foot switch 16, so that the controller 15 controls the output end of the micro hydraulic cylinder 13 to be in an extended state, to start the pressing mechanism and lock the blank. Conversely, when the foot leaves the foot switch 16, the controller 15 controls the output end of the micro hydraulic cylinder 13 to shorten, and the pressing mechanism is dormant, which can release the locking state of the blank, freeing the hands of the staff to take and place the blank, which is beneficial to improving the efficiency of the staff in grinding the flash of the universal joint fork.

[0069] See Figure 2 and Figure 6 , an elastic plate 17 is bonded to the side of the pressure plate 14 away from the micro hydraulic cylinder 13. The material of the elastic plate 17 is rubber and can be deformed when squeezed. A friction plate 18 is bonded to the outside of the elastic plate 17. The material of the friction plate 18 is frosted sponge, which can enhance the friction of the contact surface when contacting the blank. There is a gap between the outer side of the friction plate 18 and the inner wall of the countersunk groove 12. When the tightening mechanism of the present invention is working, the pressure plate 14 and the blank squeeze the elastic plate 17, and the deformation of the elastic plate 17 is used for buffering, thereby reducing the mechanical damage to the blank, and the friction plate 18 is used to enhance the friction of the contact surface, thereby improving the stability of the blank locking.

[0070] See Figure 4 and Figure 7 , the locking mechanism includes:

[0071] The inverted concave seat 19 is provided at the lower end of the lifting hydraulic cylinder 3, the upper surface of the inverted concave seat 19 is welded to the output end of the lifting hydraulic cylinder 3, and the opening faces downward;

[0072] The mounting plate 20 is convex in shape and fits conveniently into the opening of the inverted concave seat 19. One end of the mounting plate 20 is inserted into the interior of the inverted concave seat 19, and the other end extends out of the interior of the inverted concave seat 19 and is welded to the upper end of the sleeve 4.

[0073] The four locking bolts 21 are respectively installed at the four corners of the lower surface of the inverted concave seat 19 , and one end of the locking bolts 21 is respectively threadedly connected to the four corners of the upper end of the mounting plate 20 .

[0074] When the present invention is working, the end of the mounting plate 20 away from the sleeve 4 is inserted into the opening of the inverted concave seat 19, and the inverted concave seat 19 and the mounting plate 20 are connected with the locking bolt 21, and rotated forward to lock, and the sleeve 4, the grinding seat ring 5 and the grinding ear 6 can be installed to the output end of the lifting hydraulic cylinder 3. When the grinding seat ring 5 and the grinding ear 6 reach the wear limit due to friction, the locking bolt 21 is reversed to release the lock of the inverted concave seat 19 and the mounting plate 20, and the mounting plate 20 is removed, and the grinding seat ring 5 and the grinding ear 6 can be quickly replaced, which takes up less grinding time.

[0075] See Figure 3 and Figure 4 The upper end of the mounting plate 20 is provided with a plurality of threaded holes 22 adapted to the locking bolts 21. The inner wall of the threaded hole 22 is hardened by high-frequency quenching, which has a short processing time and small oxidation, decarburization and deformation. When the present invention is working, the threaded hole 22 is used to connect the locking bolt 21, so that the locking bolt 21 can be suspended in the air when it leaves the mounting plate 20, and will not fall to the ground, and there is no need to bend down to pick it up.

[0076] See Figure 3 and Figure 7 A retaining ring 7 is welded on the inner side of the sleeve 4, and an elastic washer 8 is bonded to the side of the retaining ring 7 close to the grinding seat ring 5. The material of the elastic washer 8 is sponge and can be deformed when squeezed. When the present invention is working, the sleeve 4 and the grinding seat ring 5 cover the blank, driving the retaining ring 7 and the elastic washer 8 to descend until they rest against the upper end of the blank, limiting the grinding seat ring 5 and the grinding ear 6 to avoid hitting the grinding platform 1, and buffering is performed through the deformation of the elastic washer 8, unloading the hydraulic load of the lifting hydraulic cylinder 3, and improving the stability of the hydraulic system.

[0077] See Figure 1 and Figure 2 , waste slag grooves 23 are provided on the upper surface of the grinding platform 1 at both sides of the clamping mechanism, a high-pressure air nozzle 24 is fixedly installed at one end of the waste slag groove 23, the air inlet end of the high-pressure air nozzle 24 is connected to the air source, and a woven bag 25 is provided between the other ends. When the present invention grinds the blank, the burr is ground into debris by the grinding seat ring 5 and the grinding ear 6 and falls into the waste slag groove 23. When the air source is turned on, the high-pressure air nozzle 24 ejects compressed air into the waste slag groove 23, and blows the debris into the woven bag 25 for collection.

[0078] See Figure 1 and Figure 3 Two brackets 26 are welded on one side of the grinding platform 1, and an opening iron ring 27 for opening the woven bag 25 is fixedly installed between the upper ends of the two brackets 26. At the same time, the opening iron ring 27 is supported by the bracket 26 to facilitate the suspension of the opening iron ring 27. The opening of the woven bag 25 is tied to the opening iron ring 27 with a cable tie so that it is always facing the end of the waste slag ditch 23 away from the high-pressure air nozzle 24 to catch the waste slag.

[0079] Working principle: When the present invention is working, a universal joint fork blank is placed upside down on the upper surface of the grinding platform 1, and a clamping mechanism is used to extend into the interior of the blank for fixing. When clamping the universal joint fork blank, it is placed upside down on the upper surface of the grinding platform 1 and buckled on the upper end of the concave die base 9. The inner walls of the two ears contact the guide wheels 11 in the mounting groove 10. The rotation of the guide wheels 11 will not hinder the descent of the blank, and can also straighten the blank so that the blank and the concave die base 9 are coaxial. The boss inside the blank falls into the concave part of the upper end of the concave die base 9. Use one foot to step on the foot switch 16 to make the controller 15 control the output end of the micro hydraulic cylinder 13 to be in an extended state, start the clamping mechanism, press against the inner wall of the blank, lock the blank, and fix it to complete the clamping. There is no need for repeated calibration. The operation is simple, time-saving and labor-saving, and the burrs on the outside of the blank and the two ears are left hanging in the air.

[0080] Insert the end of the mounting plate 20 away from the sleeve 4 into the opening of the inverted concave seat 19, connect the inverted concave seat 19 and the mounting plate 20 with the locking bolt 21, and rotate forward to lock. The locking mechanism installs the upper end of the sleeve 4 to the output end of the lifting hydraulic cylinder 3, and the sleeve 4, the grinding seat ring 5 and the grinding ear 6 can be installed to the output end of the lifting hydraulic cylinder 3. The sleeve 4, the grinding seat ring 5, the grinding ear 6 and the blank are coaxial, and the two grinding ears 6 are vertically facing the burrs of the two ears of the blank. The grinding seat ring 5 and the grinding ear 6 are lowered by the lifting hydraulic cylinder 3 to respectively stick to the The burrs on the outside of the blank and the ears drive the frosting part to rise and fall and repeatedly grind the burrs. It can automatically grind the burrs in one piece without the need for secondary clamping of the universal joint fork blank. The appearance is highly consistent, which is convenient for improving the efficiency of grinding the burrs of the universal joint fork. After grinding, the foot leaves the foot switch 16, and the controller 15 controls the output end of the micro hydraulic cylinder 13 to shorten, and the pressing mechanism is dormant, which can release the locking state of the blank. The output end of the lifting hydraulic cylinder 3 rises and resets, and the clamping mechanism is released, which is convenient for freeing the hands of the staff to pick up and place the blank, and the blank can be removed.

[0081] When the grinding seat ring 5 and the grinding ear 6 reach the wear limit due to friction, the locking bolt 21 is reversed to release the lock of the concave seat 19 and the mounting plate 20, and the mounting plate 20 is removed, so that the grinding seat ring 5 and the grinding ear 6 can be quickly replaced, which takes up less grinding time.

[0082] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A yoke fork flash grinding device, characterized in that: include: A grinding platform (1), wherein the universal joint fork blank and the grinding product are stacked on both sides of the grinding platform (1), and a clamping mechanism is provided on the upper surface of the grinding platform (1); The clamping mechanism comprises: a concave die base (9), the lower end of the concave die base (9) is fixedly connected to the upper surface of the grinding platform (1), the upper end is a concave structure, and both sides of the concave die base (9) are provided with a tightening mechanism; Mounting grooves (10), wherein the two mounting grooves (10) are respectively provided on both sides of the upper end of the concave mold base (9); A guide wheel (11), the guide wheel (11) is rotatably mounted on the lower wall of the mounting groove (10), and its height is lower than the height of the concave portion of the concave mold base (9); The tightening mechanism comprises: a countersunk groove (12), wherein the countersunk groove (12) is provided on one side of the concave mold base (9); A micro hydraulic cylinder (13), one end of the micro hydraulic cylinder (13) is fixedly connected to the inner side of the countersunk groove (12), and the output end faces the opening of the countersunk groove (12); A pressure plate (14), one side of which is welded to the output end of the micro hydraulic cylinder (13), and is arranged inside the countersunk groove (12) and can be pushed out by the output end of the micro hydraulic cylinder (13); A cantilever (2), the lower end of the cantilever (2) being fixedly connected to one end of the polishing platform (1); A lifting hydraulic cylinder (3), the upper end of the lifting hydraulic cylinder (3) is fixedly connected to an end of the cantilever (2) away from the grinding platform (1), and the lower end of the lifting hydraulic cylinder (3) is provided with a locking mechanism; A sleeve (4), the upper end of the sleeve (4) being connected to the output end of the lifting hydraulic cylinder (3) and connected to the locking mechanism; A grinding seat ring (5), wherein the upper end of the grinding seat ring (5) is welded to an end of the sleeve (4) away from the lifting hydraulic cylinder (3); Grinding ears (6), one end of the two grinding ears (6) is respectively welded to the two sides of the lower end of the grinding seat ring (5), and is symmetrical to each other; The locking mechanism comprises: an inverted concave seat (19), the inverted concave seat (19) being arranged at the lower end of the lifting hydraulic cylinder (3), the upper surface of the inverted concave seat (19) being welded to the output end of the lifting hydraulic cylinder (3), and the opening of the inverted concave seat (19) being downward; a mounting plate (20), one end of the mounting plate (20) being inserted into the interior of the inverted concave seat (19), and the other end of the mounting plate (20) extending out of the interior of the inverted concave seat (19) and being welded to the upper end of the sleeve (4); Locking bolts (21), four of the locking bolts (21) are respectively installed at the four corners of the lower surface of the inverted concave seat (19), and one end is respectively threadedly connected to the four corners of the upper end of the mounting plate (20).

2. The yoke fork flash grinding device according to claim 1, characterized in that: A retaining ring (7) is welded to the inner side of the sleeve (4), and an elastic washer (8) is bonded to the side of the retaining ring (7) close to the grinding seat ring (5).

3. The yoke fork flash grinding device according to claim 1, characterized in that: A controller (15) for controlling the micro hydraulic cylinder (13) is installed on the polishing platform (1), and a foot switch (16) is electrically connected to the lower end of the controller (15).

4. The yoke fork flash grinding device according to claim 1, characterized in that: An elastic plate (17) is bonded to the side of the pressure plate (14) away from the micro hydraulic cylinder (13), a friction plate (18) is bonded to the outer side of the elastic plate (17), and a gap is left between the outer side of the friction plate (18) and the inner wall of the countersunk groove (12).

5. The yoke fork flash grinding device according to claim 1, characterized in that: The upper end of the mounting plate (20) is provided with a plurality of threaded holes (22) adapted to the locking bolts (21), and the inner walls of the threaded holes (22) are hardened.

6. The yoke flash grinding device according to claim 1, characterized in that: The upper surface of the polishing platform (1) is provided with waste residue grooves (23) at positions on both sides of the clamping mechanism. A high-pressure air nozzle (24) is fixedly installed at one end of the waste residue groove (23), and a woven bag (25) is provided between the other ends.

7. The yoke flash grinding device according to claim 6, characterized in that: Two brackets (26) are welded to one side of the polishing platform (1), and an opening iron ring (27) for opening the woven bag (25) is fixedly installed between the upper ends of the two brackets (26).

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