A processing method for a crank of a glass vertical stacker and the crank

Abstract

The present invention provides a processing method for a crank of a glass vertical stacker, comprising the following steps: S1 fabricate a fixed plate, a sleeve, and an initial crankshaft; S2 assemble the crank: the sleeve is located below the fixed plate, the top of the sleeve penetrates and is fixed on the fixed plate, the initial crankshaft is located above the fixed plate, the bottom of the initial crankshaft penetrates and is fixed on the fixed plate, and the centers of the sleeve and the initial crankshaft are in the same plane; S3 finish-mill the bottom surface of the sleeve; S4 finish-bore the inner hole of the sleeve and the outer circle of the initial crankshaft; S5 fabricate the crankshaft; S6 mill the top surface of the crank; S3-S6 are all performed on the working table of a machining center using high-speed cutting tools; S4-S6 are a single clamping operation. By means of a single clamping, first finish-boring the hole and the shaft, and then milling the top surface, the present invention can ensure the parallelism between the axis of the shaft and the center line of the hole, and the perpendicularity between the shaft and the top surface, and the perpendicularity between the hole and the top surface.

Description

Technical Field

[0001] The present invention relates to the technical field of glass machining, and particularly to a machining method for a crank of a glass vertical stacker and the crank. Background Art

[0002] A glass vertical stacker generally realizes the reciprocating motion of the boom from the production line to the stacking position through a crank-rocker mechanism. Among them, the crank, as a key part connecting the reducer to input power for the equipment, its main technical indicators are: the parallelism between the axis and the center line of the hole, the perpendicularity between the axis and the top surface, the perpendicularity between the hole and the top surface, the roundness of the hole, and the surface finish of the hole and the axis; the technical quality level of the crank directly affects the accuracy of the reciprocating motion of the boom.

[0003] The conventional machining process of the crank is as follows: First step, casting the crank blank; Second step, boring the bottom surface of the crank on a boring machine; Third step, boring the crank hole and the top surface on a boring machine; Fourth step, boring the outer circle of the shaft and the top surface on a boring machine. In the first step of casting the crank blank, it needs to be integrally formed by injection molding and other processes according to the shape of the crank. The machining allowance of the cast blank is large and the production efficiency is low. In the third and fourth steps, the crank hole and the crank shaft are slowly bored (the spindle speed of the boring machine is low) on the boring machine and processed step by step. The slow boring makes the roughness of the crank hole and the outer circle of the shaft not meet the product requirements. Boring the crank hole and the top surface and boring the outer circle of the shaft and the top surface in two steps requires two clampings, which cannot ensure the parallelism between the axis and the center line of the hole, nor can it ensure the perpendicularity between the axis and the top surface, and the perpendicularity between the hole and the top surface, not meeting the product requirements. Summary of the Invention

[0004] The technical problem to be solved by the present invention is how to ensure the parallelism between the crank shaft and the center line of the hole, the perpendicularity between the axis and the top surface, and the perpendicularity between the hole and the top surface through the improvement of the machining method.

[0005] The present invention solves the above technical problems by the following technical means:

[0006] A machining method for a crank of a glass vertical stacker, comprising the following steps:

[0007] S1 Making the fixing plate (1), the sleeve (2), and the initial crank shaft (3');

[0008] S2 Assembling the crank: The sleeve (2) is located below the fixing plate (1), the top of the sleeve (2) penetrates and is fixed on the fixing plate (1), the initial crank shaft (3') is located above the fixing plate (1), the bottom of the initial crank shaft (3') penetrates and is fixed on the fixing plate (1), and the centers of the sleeve (2) and the initial crank shaft (3') are in the same plane;

[0009] S3 Precision milling the bottom surface of the sleeve (2);

[0010] Precision boring the inner hole of the S4 boring sleeve (2) and the outer circle of the initial crankshaft (3');

[0011] S5 Manufacturing the crankshaft (3);

[0012] S6 Milling the top surface of the crank;

[0013] Steps S3 - S6 are all carried out on the machining center workbench (4) using high - speed cutting tools.

[0014] Steps S4 - S6 are the same clamping operation.

[0015] Beneficial effects: By using high - speed cutting tools for machining on the machining center workbench, the precision of holes, shafts and each end face can be improved, and their roughness can meet the product requirements; by one - time clamping, first precision boring the hole and shaft, and then milling the top surface, the parallelism between the axis of the shaft and the hole center line, the perpendicularity between the shaft and the top surface, and the perpendicularity between the hole and the top surface can be ensured; by separately manufacturing the fixing plate, sleeve and initial crankshaft, and then assembling the fixing plate, sleeve and initial crankshaft into a crank, it can ensure that the machining allowance of the casting blank is small and the production efficiency is high.

[0016] Further, the clamping operation is specifically as follows: Weld two blocks (13) at intervals on the front and rear side plates of the fixing plate (1); Fix the second cushion block (43) on the machining center workbench (4), and the second cushion block (43) is provided with a through - hole from top to bottom. Place the bottom surface of the sleeve (2) on the second cushion block (43) so that the first mounting hole (11) corresponds to the through - hole of the second cushion block (43) from top to bottom; A support seat 44 is fixed on one side of the machining center workbench (4) close to the initial crankshaft (3'); Each block (13) is fixed to the second pressing mechanism (45), and the bottom end of the second pressing mechanism (45) is fixed on the machining center workbench (4), and the second pressing mechanism (45) can be set to lift and lower according to the height of the crank.

[0017] Beneficial effects: Through the setting of the clamping operation, the crank can be fixed to the machining center workbench and then high - speed milling and boring can be carried out using high - speed cutting tools. Through the lifting and lowering setting of the second pressing mechanism, the stability of the crank during milling and boring can be ensured; By fixing the blocks on the side of the fixing plate, it will not interfere with the milling of the top surface of the crank in the sixth step.

[0018] Further, the sleeve (2) is provided with two stepped holes penetrating up and down, namely the first opening (21) and the second opening (23). The first opening (21) is located above the second opening (23), and the diameter of the first opening (21) is larger than the diameter of the second opening (23); The precision boring of the inner hole of the boring sleeve (2) is as follows: While rotating and moving downward with a boring tool, first bore the first opening (21), and after boring the first opening (21), then bore the second opening (23).

[0019] Beneficial effects: By setting the process of boring the first opening first and then the second opening, it is convenient to discharge waste chips.

[0020] Further, the outer circle of the finish boring initial crankshaft (3') is processed as follows: Use the outer circle cutter of the finish boring shaft (5) to perform boring on the outer circle of the initial crankshaft (3').

[0021] Further, the outer circle cutter of the finish boring shaft (5) includes a fixed seat (51), a tool bar (52), a finish boring cutter (53), and a counterweight (54). A tool bar (52) is fixed at the center of the top wall of the fixed seat (51), and the finish boring cutter (53) and the counterweight (54) are fixedly arranged at equal intervals on the bottom wall of the fixed seat (51). The gap between the finish boring cutter (53) and the counterweight (54) is adapted to the outer circle of the initial crankshaft (3').

[0022] Beneficial effects: Through the setting of the finish boring cutter and the counterweight, during operation, the gap between the finish boring cutter and the counterweight is sleeved around the outer circle of the initial crankshaft. Start the outer circle cutter of the finish boring shaft. The outer circle cutter of the finish boring shaft can rotate and move downward along the outer circle of the initial crankshaft while closely adhering to the outer circle of the initial crankshaft under the mutual cooperation of the finish boring cutter and the counterweight to perform finish boring on the outer circle of the initial crankshaft.

[0023] Further, the production of the crankshaft (3) is as follows: Use the outer circle grooving cutter (6) to rotate one week at the top position of the outer circle of the initial crankshaft (3') to process an outer circle groove (31), and thus the crankshaft (3) is made.

[0024] Further, the milling of the crank top surface is as follows: On the machining center workbench (4), use an end mill to process the top surface of the crank; after the processing is completed, remove the block (13) welded on the fixing plate (1), and thus the processing of the crank of the glass vertical stacking machine is completed.

[0025] Further, the finish milling of the bottom surface of the finish milling sleeve (2) is as follows: Fix the first cushion block (41) on the machining center workbench (4), and the first cushion block (41) is provided with a through hole up and down; after mirroring and rotating the crank by 180°, connect the fixing plate (1) near the top surface of the sleeve (2) to the first cushion block (41) through the first pressing mechanism (42) detachably. The bottom end of the first pressing mechanism (42) is fixed on the machining center workbench (4), and the first pressing mechanism (42) can be set to lift according to the height of the crank; then use an end mill to process the bottom surface of the sleeve (2).

[0026] Beneficial effects: The end mill, boring cutter, outer circle cutter of the finish boring shaft, and outer circle grooving cutter in this application are all high-speed tools, which need to cooperate with the machining center workbench and the clamping thereon for operation and cannot be matched with a boring machine. Through the mutual cooperation of the high-speed tools and the machining center workbench, the accuracy of holes, shafts, and top surfaces can be improved.

[0027] Further, a first mounting hole (11) and a second mounting hole (12) are respectively penetrated through the fixing plate (1) from the top plate to the bottom plate. The first mounting hole (11) and the second mounting hole (12) are arranged at intervals along the length of the fixing plate (1). The centers of the first mounting hole (11) and the second mounting hole (12) are on the same length plane. The diameter of the first mounting hole (11) is larger than the diameter of the second mounting hole (12). The manufacturing of the fixing plate (1), the sleeve (2), the initial crankshaft (3'), and the assembled crank is as follows: The fixing plate (1), the sleeve (2), and the initial crankshaft (3') are individually forged blanks. After manufacturing, the initial crankshaft (3') and the sleeve (2) are respectively inserted into the first mounting hole (11) and the second mounting hole (12) of the fixing plate (1) manually with a fitter's hammer, and the initial crankshaft (3') and the sleeve (2) are welded and fixed to the fixing plate (1) by argon arc welding.

[0028] The present invention also discloses a crank processed by using the processing method of the crank of the glass vertical stacking machine described in any one of the above technical solutions.

[0029] Beneficial effects: The crank processed by the processing method of the present application can fully meet the technical indicators of the crank in the glass vertical stacking machine: the parallelism between the axis and the center line of the hole, the perpendicularity between the axis and the top surface, the perpendicularity between the hole and the top surface, the roundness of the hole, and the surface finish of the hole and the axis, and can ensure the accuracy of the reciprocating motion of the boom.

[0030] The advantages of the present invention are as follows:

[0031] By using high-speed cutting tools to process on the working table of the machining center, the present invention can improve the accuracy of the holes, shafts, and each end face, and make its roughness meet the product requirements; by one-time clamping and first precision boring the holes and shafts, and then milling the top surface, the parallelism between the axis and the center line of the hole, and the perpendicularity between the axis and the top surface, and the perpendicularity between the hole and the top surface can be ensured; by separately manufacturing the fixing plate, the sleeve, and the initial crankshaft, and then assembling the fixing plate, the sleeve, and the initial crankshaft into a crank, the machining allowance of the casting blank can be ensured to be small and the production efficiency can be high.

[0032] Through the improvement of the processing method, the crank processed by the present invention can fully meet the technical indicators of the crank in the glass vertical stacking machine: the parallelism between the axis and the center line of the hole, the perpendicularity between the axis and the top surface, the perpendicularity between the hole and the top surface, the roundness of the hole, and the surface finish of the hole and the axis, and can ensure the accuracy of the reciprocating motion of the boom.

[0033] Through the setting of the clamping operation, the present invention can fix the crank to the working table of the machining center and then perform high-speed milling and boring with high-speed cutting tools. Through the lifting setting of the second pressing mechanism, the stability of the crank during milling and boring can be ensured; by fixing the block on the side of the fixing plate, it will not interfere with the milling of the top surface of the crank in the sixth step.

[0034] In the present invention, by first boring the first opening and then boring the second opening, it is convenient to discharge waste chips.

[0035] In the present invention, through the settings of the fine boring tool and the counterweight, during operation, the gap between the fine boring tool and the counterweight is sleeved around the outer circle of the initial crankshaft. Start the outer circle cutter of the fine boring shaft. The outer circle cutter of the fine boring shaft can rotate and move downward along the outer circle of the initial crankshaft while closely adhering to the outer circle of the initial crankshaft under the mutual cooperation of the fine boring tool and the counterweight to perform fine boring on the outer circle of the initial crankshaft.

[0036] The end milling cutter, boring cutter, outer circle cutter of the fine boring shaft, and outer circle grooving cutter of the present invention are all high-speed tools, which need to cooperate with the machining center workbench and the clamping thereon for operation and cannot be matched with a boring machine. Through the mutual cooperation of the high-speed tool and the machining center workbench, the accuracy of holes, shafts, and top surfaces can be improved. Brief Description of the Drawings

[0037] Figure 1 It is the front view (partially sectioned) of the crank of the glass vertical stacker in the first embodiment of the present invention;

[0038] Figure 2 It is the top view of the fixed plate in the crank of the glass vertical stacker in the first embodiment of the present invention;

[0039] Figure 3 It is the front sectional view of the fixed plate in the crank of the glass vertical stacker in the first embodiment of the present invention;

[0040] Figure 4 It is the front sectional view of the sleeve in the crank of the glass vertical stacker in the first embodiment of the present invention;

[0041] Figure 5 It is the front view of the crankshaft in the crank of the glass vertical stacker in the first embodiment of the present invention;

[0042] Figure 6 It is the welding process diagram of the crank of the glass vertical stacker in the first embodiment of the present invention;

[0043] Figure 7 It is the clamping schematic diagram of the bottom surface of the fine milling sleeve in the first embodiment of the present invention;

[0044] Figure 8 It is the clamping schematic diagram of the fine boring of the inner hole of the sleeve (omitting the boring cutter) in the first embodiment of the present invention;

[0045] Figure 9 It is the top view of the clamping diagram of the fine boring of the inner hole of the sleeve (omitting the boring cutter) in the first embodiment of the present invention;

[0046] Figure 10 It is the process diagram of the fine boring of the outer circle of the initial crankshaft in the first embodiment of the present invention;

[0047] Figure 11 This is the process drawing for machining the outer circular groove of the crankshaft in the first embodiment of the present invention. Specific implementation manner

[0048] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0049] Embodiment 1

[0050] As Figure 1 shown, this embodiment provides a glass vertical stacker crank, including a fixing plate 1, a sleeve 2, and a crankshaft 3.

[0051] As Figure 1 , Figure 2 , Figure 3 shown, the fixing plate 1 is respectively provided with a first mounting hole 11 and a second mounting hole 12 penetrating from the top plate to the bottom plate. The first mounting hole 11 and the second mounting hole 12 are arranged at intervals along the length of the fixing plate 1. The centers of the first mounting hole 11 and the second mounting hole 12 are on the same length plane, and the diameter of the first mounting hole 11 is larger than the diameter of the second mounting hole 12.

[0052] As Figure 1 , Figure 2 , Figure 4 shown, the sleeve 2 is located below the fixing plate 1. The top of the sleeve 2 is welded and fixed in the first mounting hole 11. The sleeve 2 is provided with two stepped holes penetrating up and down, namely a first opening 21 and a second opening 23. The first opening 21 is located above the second opening 23, and the diameter of the first opening 21 is larger than the diameter of the second opening 23.

[0053] As Figure 1 , Figure 2 shown, the crankshaft 3 is located above the fixing plate 1. The bottom of the crankshaft 3 is welded and fixed in the second mounting hole 12. A circular outer groove 31 is provided at the top of the crankshaft 3.

[0054] The processing method of the glass vertical stacker crank includes the following steps:

[0055] S1 Fabricate the fixing plate 1, the sleeve 2, and the initial crankshaft 3': As Figure 1 , Figure 4 , Figure 5As shown, the initial crankshaft 3' and the sleeve 2 both use forged blanks. After turning, they are quenched and tempered to HB280 - 300. There is no outer circular groove 31 at the top position of the initial crankshaft 3'. As Figure 2 , Figure 3 shown, the fixing plate 1 is milled after being cut according to the specified shape.

[0056] S2 Assemble the crank: As Figure 2 , Figure 6 shown, manually use a fitter's hammer to embed the initial crankshaft 3' and the sleeve 2 into the first mounting hole 11 and the second mounting hole 12 of the fixing plate 1 respectively, and use argon arc welding to weld and fix the initial crankshaft 3', the sleeve 2 and the fixing plate 1; the specific welding process is: the V-shaped weld is welded in multiple passes, the fillet weld is welded at one time, the preheating temperature before welding is controlled at 250 - 400 °C, the interpass temperature of the weld is ensured not to be lower than 250 °C, and the whole crank is tempered after welding to eliminate the welding stress, and the tempering temperature is 600 - 650 °C.

[0057] By separately manufacturing the fixing plate 1, the sleeve 2, and the initial crankshaft 3', and then assembling the fixing plate 1, the sleeve 2, and the initial crankshaft 3' into a crank, it can ensure that the machining allowance of the casting blank is small and the production efficiency is high.

[0058] S3 Finish-mill the bottom surface of the sleeve 2: As Figure 7 shown, fix the first cushion block 41 on the working table 4 of the machining center. The first cushion block 41 is provided with a through hole up and down; after mirroring and rotating the crank by 180°, connect the fixing plate 1 close to the top surface of the sleeve 2 to the first cushion block 41 through the first pressing mechanism 42. The bottom end of the first pressing mechanism 42 is fixed on the working table 4 of the machining center. The first pressing mechanism 42 can be lifted and lowered according to the height of the crank. The first pressing mechanism 42 can ensure the stability of the crank during finish-milling, and then use an end mill (not shown in the figure) to machine the bottom surface of the sleeve 2.

[0059] S4 Finish-bore the inner hole of the sleeve 2 and the outer circle of the initial crankshaft 3':

[0060] As Figure 8 , Figure 9As shown, two blocks 13 are welded at intervals on the front and rear side plates of the fixing plate 1. With this setting, it does not interfere with the milling of the top surface of the crank in the sixth step; a second cushion block 43 is fixed on the machining center workbench 4. The second cushion block 43 is provided with a through hole from top to bottom. Then, the crank is restored to its original position, and the bottom surface of the sleeve 2 is placed on the second cushion block 43, so that the first mounting hole 11 corresponds to the through hole of the second cushion block 43 from top to bottom; on one side of the machining center workbench 4 close to the initial crankshaft 3', there are three support seats 44 fixed. They are arranged around the second mounting hole 12 and are used to support the crank; each block 13 is fixed to the second pressing mechanism 45. The bottom end of the second pressing mechanism 45 is fixed on the machining center workbench 4. The second pressing mechanism 45 can be lifted and lowered according to the height of the crank, and the second pressing mechanism 45 can ensure the stability of the crank during fine boring;

[0061] As Figure 4 shown, then a boring cutter (not shown in the figure) is used to perform boring machining on the two stepped holes of the sleeve 2 according to requirements such as form and position, and roughness. Specifically: the boring cutter rotates and moves downward. First, the first opening 21 is bored. After boring the first opening 21, the second opening 23 is bored, which is convenient for discharging waste chips.

[0062] As Figure 10 shown, a fine boring outer circle cutter 5 is used to perform boring machining on the outer circle of the initial crankshaft 3' according to requirements such as form and position, and roughness; the fine boring outer circle cutter 5 includes a fixed seat 51, a tool bar 52, a fine boring cutter 53, and a counterweight 54. The center of the top wall of the fixed seat 51 is fixed with a tool bar 52. The fine boring cutter 53 and the counterweight 54 are fixed at equal intervals on the bottom wall of the fixed seat 51. The gap between the fine boring cutter 53 and the counterweight 54 is adapted to the outer circle of the initial crankshaft 3'. During operation, the gap between the fine boring cutter 53 and the counterweight 54 is sleeved around the outer circle of the initial crankshaft 3'. The fine boring outer circle cutter 5 is started. The fine boring outer circle cutter 5 can rotate and move downward while closely adhering to the outer circle of the initial crankshaft 3' under the mutual cooperation of the fine boring cutter 53 and the counterweight 54 to perform fine boring on the outer circle of the initial crankshaft 3';

[0063] S5 Manufacturing the crankshaft 3: As Figure 11 shown, replace it with a boring outer circle groove cutter 6 and rotate it once at the top position of the outer circle of the initial crankshaft 3' to machine the outer circle groove 31, thus manufacturing the crankshaft 3;

[0064] S6 Milling the top surface of the crank: As Figure 8 shown, on the machining center workbench 4, the top surface of the crank is machined by an end mill (not shown in the figure); milling the top surface of the crank and the fourth and fifth steps of the process are all in the same clamping operation; after machining, the welded blocks 13 on the fixing plate 1 are removed, and the machining of the crank of the glass vertical stacker is completed.

[0065] The end milling cutter, boring cutter, fine boring shaft outer circle cutter, and boring outer circle groove cutter of this application are all high-speed tools, which need to cooperate with the machining center workbench 4 and its clamping on it for work and cannot be matched with a boring machine. Through the mutual cooperation of the high-speed tool and the machining center workbench 4, the accuracy of holes, shafts, and top surfaces can be improved.

[0066] By clamping once and first finely boring the hole (the inner hole of the sleeve 2) and the shaft (the outer circle of the initial crankshaft 3'), and then milling the top surface, the parallelism between the shaft and the hole center line, the perpendicularity between the shaft and the top surface, and the perpendicularity between the hole and the top surface can be ensured.

[0067] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A processing method for a crank of a glass vertical stacking machine, characterized in that, Including the following steps: S1 Fabricate a fixed plate (1), a sleeve (2), and an initial crankshaft (3'); S2 Assemble the crank: The sleeve (2) is located below the fixed plate (1), the top of the sleeve (2) penetrates and is fixed on the fixed plate (1), the initial crankshaft (3') is located above the fixed plate (1), the bottom of the initial crankshaft (3') penetrates and is fixed on the fixed plate (1), and the centers of the sleeve (2) and the initial crankshaft (3') are in the same plane; The initial crankshaft (3'), the sleeve (2), and the fixed plate (1) are fixed by welding; S3 Finish-mill the bottom surface of the sleeve (2); The finish-milling of the bottom surface of the sleeve (2) is as follows: Fix a first cushion block (41) on the machining center workbench (4), and the first cushion block (41) is provided with a through hole from top to bottom; After mirroring and rotating the crank by 180°, the fixed plate (1) close to the top surface of the sleeve (2) is detachably connected to the first cushion block (41) through a first pressing mechanism (42), the bottom end of the first pressing mechanism (42) is fixed on the machining center workbench (4), and the first pressing mechanism (42) can be set to lift and lower according to the height of the crank; Then use an end mill to machine the bottom surface of the sleeve (2); S4 Finish-bore the inner hole of the sleeve (2) and the outer circle of the initial crankshaft (3'); The sleeve (2) is provided with two stepped holes penetrating up and down, namely a first opening (21) and a second opening (23), the first opening (21) is located above the second opening (23), and the diameter of the first opening (21) is larger than that of the second opening (23); The finish-boring of the inner hole of the sleeve (2) is as follows: While rotating and moving downward with a boring tool, first bore the first opening (21), and then bore the second opening (23) after boring the first opening (21); The finish-boring of the outer circle of the initial crankshaft (3') is as follows: Use a finish-boring tool for the outer circle of the shaft (5) to bore the outer circle of the initial crankshaft (3'); S5 Fabricate a crankshaft (3); S6 Mill the top surface of the crank; Steps S3 - S6 are all carried out on the machining center workbench (4) using high-speed tools; Steps S4 - S6 are a single clamping operation; The clamping operation is specifically as follows: Weld two spacer blocks (13) at intervals on the front and rear side plates of the fixed plate (1); Fix a second cushion block (43) on the machining center workbench (4), and the second cushion block (43) is provided with a through hole from top to bottom. Place the bottom surface of the sleeve (2) on the second cushion block (43) so that the first mounting hole (11) corresponds to the through hole of the second cushion block (43) from top to bottom; A support seat (44) is fixed on one side of the machining center workbench (4) close to the initial crankshaft (3'); Each spacer block (13) is fixed to a second pressing mechanism (45), the bottom end of the second pressing mechanism (45) is fixed on the machining center workbench (4), and the second pressing mechanism (45) can be set to lift and lower according to the height of the crank.

2. The processing method of a crank of a glass vertical stacking machine according to claim 1, characterized in that: The fine boring shaft external round cutter (5) includes a fixed seat (51), a cutter bar (52), a fine boring cutter (53), and a counterweight (54). A cutter bar (52) is fixed at the center of the top wall of the fixed seat (51), and the fine boring cutter (53) and the counterweight (54) are fixedly arranged at equal intervals on the bottom wall of the fixed seat (51). The gap between the fine boring cutter (53) and the counterweight (54) is adapted to the outer circle of the initial crankshaft (3').

3. The processing method of a crank of a glass vertical stacking machine according to claim 1, characterized in that: The manufacturing of the crankshaft (3) is as follows: A round groove (31) is machined by a boring external round groove cutter (6) rotating one week at the top position of the outer circle of the initial crankshaft (3') to form the crankshaft (3).

4. A processing method for a crank of a glass vertical stacking machine according to claim 3, characterized in that: The milling of the crank top surface is as follows: The top surface of the crank is machined by an end mill on the machining center workbench (4); after the machining is completed, the block (13) welded on the fixing plate (1) is removed to complete the machining of the crank of the glass vertical stacker.

5. The processing method of a crank of a glass vertical stacking machine according to claim 1, characterized in that: The fixing plate (1) is respectively provided with a first mounting hole (11) and a second mounting hole (12) penetrating from the top plate to the bottom plate. The first mounting hole (11) and the second mounting hole (12) are arranged at intervals along the length of the fixing plate (1). The centers of the first mounting hole (11) and the second mounting hole (12) are on the same length plane, and the diameter of the first mounting hole (11) is larger than that of the second mounting hole (12); The manufacturing of the fixing plate (1), the sleeve (2), the initial crankshaft (3') and the assembly of the crank are as follows: The fixing plate (1), the sleeve (2), and the initial crankshaft (3') are respectively forged blanks. After the manufacturing is completed, the initial crankshaft (3') and the sleeve (2) are respectively inserted into the first mounting hole (11) and the second mounting hole (12) of the fixing plate (1) manually with a fitter's hammer, and the initial crankshaft (3') and the sleeve (2) are welded and fixed to the fixing plate (1) by argon arc welding.

6. A crank processed by the processing method of the crank of the glass vertical stacker according to any one of claims 1-5.

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