CN217371620U - Special indexing grinder for machining mandrel push rod of expansion tank die - Google Patents
Special indexing grinder for machining mandrel push rod of expansion tank die Download PDFInfo
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- CN217371620U CN217371620U CN202221123811.7U CN202221123811U CN217371620U CN 217371620 U CN217371620 U CN 217371620U CN 202221123811 U CN202221123811 U CN 202221123811U CN 217371620 U CN217371620 U CN 217371620U
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Abstract
The utility model relates to the technical field of machining, in particular to special index grinder of processing of jar mold core axle push rod expands. The special indexing grinder comprises a base positioning group, a movable positioning group and an indexing group, wherein the movable positioning group is arranged on the right side of the base positioning group, positioning adjustment is carried out when a product is clamped according to the length difference of a push rod, and the indexing group is arranged on the left front side of the base positioning group and used for indexing the product. The utility model discloses the precision of graduation precision height can guarantee the graduation easily, because special graduated disk is to the special graduation of a single product, but simple structure alternate the location of angular position fast. The location benchmark that the push rod adds man-hour is both ends apex hole location, and form and position tolerance guarantees very well, the utility model discloses a special graduation grinder convenient operation, the practicality is strong, can improve machining efficiency more than 30% to machining capacity and market share have been improved.
Description
Technical Field
The utility model relates to a machinery processing technology field, in particular to special graduation grinder of dabber push rod processing of jar mould expands.
Background
The expansion tank mould is a mould for producing the tank, and the expansion tank mould is used for molding a product through the radial expansion motion of a mould core of the mould as the name suggests. The mold core moves radially through the axial movement of the mandrel push rod.
The can expanding die is mainly used for producing iron can bodies for producing can products such as milk powder, protein powder and the like. The shape structure and the machining precision of the mandrel push rod are related to the product quality, the shape and the precision of the inner cavity of a product expanded out of the mold core can be directly influenced, the service life of the mandrel can be influenced, and the machining method and the machining precision of the mandrel push rod and the manufacturing and using of the tool fixture play a crucial role in the product quality.
The machining of the mandrel push rod is generally a turning and milling composite machine tool or a machining center machine tool, and because the push rod is a tool line generated by machining a conical surface cutter and is not a line along the axis, the smoothness is poor in use, moreover, the symmetry of the conical surface to the central line cannot meet the use requirement of a product, and the cutter is worn and needs to be frequently replaced to generate errors.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the processing technical problem that current turn-milling is compound and machining center lathe equipment is not suitable for the dabber push rod, providing a special graduation grinder that dabber push rod processing adopted, through processing the conical surface on flat grinder, can realize that the grinding direction prolongs axis direction processing. Because the positioning reference of the push rod processing is that the holes at two ends are positioned, the consistency of the reference is ensured, and the symmetry is stable and accurate.
The utility model discloses a realize that the technical scheme that above-mentioned purpose adopted is: the utility model provides a special graduation grinder of dabber push rod processing of jar mould which characterized in that: the positioning device comprises a base positioning group, a movable positioning group and a dividing group, wherein the movable positioning group is arranged on the right side of the base positioning group, positioning adjustment is carried out during product clamping according to different lengths of push rods, and the dividing group is arranged on the left front side of the base positioning group and is used for dividing products;
the base positioning group comprises a main board base, a left end positioning seat and a left tip, wherein the left end positioning seat is installed at the left end of the main board base, and the left tip is installed in a tip fixing hole of the left end positioning seat;
the movable positioning group comprises a T-shaped key, a right-end movable positioning seat, a right-side tip sliding block, a right-side sliding block, a right-end tip tightness adjusting block, a right tip and a transposition pin, the right-side sliding block is arranged below the right-side tip sliding block, the right-end tip tightness adjusting block is arranged on the right side of the right-end movable positioning seat, the right-side tip sliding block is arranged above the right-end movable positioning seat, the T-shaped key is arranged below the right-end movable positioning seat, and the transposition pin is arranged in a movable positioning hole of the right-end movable positioning seat and plays a role in positioning after shifting;
the indexing group comprises a special indexing disc, an indexing positioning pin seat, an indexing pin and an indexing pin inner spring, wherein the indexing pin inner spring is arranged inside the indexing pin and has the function that the indexing pin elastically contracts when indexing is performed in product processing, so that the automatic locking function is achieved, the indexing pin is arranged in a pin positioning hole in the indexing positioning seat and is used for locking and positioning the indexing disc in a telescopic motion in the hole, the special indexing disc is arranged at a reference positioning part of the mandrel push rod and plays a role of linking the mandrel push rod, and the mandrel push rod is driven to perform indexing during indexing.
A transposition pin hole for positioning the movable positioning group in a moving adjusting position is formed in the right side surface of the main board base, and the transposition pin hole is connected and locked with the T-shaped key through a screw; the left side of the main board base is provided with a positioning pin hole for positioning and locking an indexing positioning pin seat, and the indexing positioning pin seat can be adjusted in left and right positions according to the position of a special indexing disc and is locked by a pin; and the left end positioning seat and the main board base are positioned by pins and then screwed down by using hexagon socket head cap screws.
The right side sliding block plate is fixedly and tightly installed below the right side center sliding block through a cylindrical head screw, the right side center tightness adjusting block is fixedly and tightly installed on the right side of the right end movable positioning seat through the cylindrical head screw, the right side center sliding block is fixedly and tightly installed above the right end movable positioning seat through the cylindrical head screw, and the T-shaped key is connected below the right end movable positioning seat through the cylindrical head screw.
The indexing grooves of the special indexing disc can be manufactured according to the indexing number and angles required by a product; the tail end of the index pin is provided with an index pin cap which plays a role of manually pulling the index pin during indexing.
The utility model discloses the special graduation grinder of dabber push rod realizes the graduation adjustment of the various angles of dabber push rod through changing special graduated disk. The indexing precision is high, the indexing precision can be easily ensured, and the special indexing disc is used for special indexing of a single product, so that the structure is simple, and the positioning of angle positions can be quickly changed. The location benchmark that the push rod was processed man-hour is both ends apex hole location, and form and position tolerance guarantees very good, so the utility model discloses a special graduation grinder convenient operation, the practicality is strong, can improve machining efficiency more than 30% to machining capacity and market share have been improved.
Drawings
Fig. 1 is a structural diagram (front view) of the special indexing grinder for machining the mandrel push rod according to the present invention.
Fig. 2 is a structural diagram (side view) of the special index grinder for machining the mandrel push rod of the present invention.
Fig. 3 is a structural view of the base positioning set of fig. 1.
Fig. 4 is a structural view of the movable positioning group of fig. 1.
Fig. 5 is a view showing the structure of the index group of fig. 1.
Fig. 6 is a first structural view of the spindle push rod processed by the present invention.
Fig. 7 is a structural view ii of the spindle push rod processed by the present invention.
Fig. 8 is a schematic parallel plane view of the large end flat dimension value of the push rod of the machining mandrel of the present invention.
FIG. 9 is a schematic diagram of the taper angle surface and the large end flat length dimension of the push rod of the mandrel of the present invention.
In the figure: 1, a main board base, 2, a left end positioning seat, 3, a left tip, 4T-shaped keys, 5, a right end movable positioning seat, 6, a right tip sliding block, 7, a right side sliding block, 8, a right tip tightness adjusting block, 9, a right tip, 10, a special indexing disc, 11, an indexing positioning pin seat, 12, 13, an inner spring of an indexing pin, 14, an indexing pin cap, 15 pins, 16 transposition pins, 17 sinusoidal magnetic tables and 18 magnetic table angle adjusting blocks;
flat B location, flat length C location, flat D big end, flat length E big end, conical surface angle F, round G location rod, length of H push rod, length of I conical rod, J exhaust hole, big end excircle K, and P exhaust cross hole.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples, but the present invention is not limited to the specific examples.
Example 1
As shown in fig. 1-5, a special indexing grinder for machining a mandrel push rod of an expansion tank die comprises: the device comprises a base positioning set, a movable positioning set and an indexing set.
The base location group includes: mainboard base 1, left end positioning seat 2, left top 3. The left end positioning seat 2 is installed on the left end of the main board base 1 and is screwed down by using an inner hexagonal socket head cap screw after being positioned by a pin. The left center 3 is arranged in a center fixing hole of the left end positioning seat 2. The main board base 1 is the base of the index grinder and is the core for supporting the whole system. The left end positioning seat 2 and the left tip 3 form a machine head of the indexing grinder, and the positioning effect of the product left end positioning hole is achieved.
The movable positioning group comprises: the tailstock system comprises a T-shaped key 4, a right-end movable positioning seat 5, a right-side center slide block 6, a right-side slide block plate 7, a right-side center tightness adjusting block 8, a right center 9, a transposition pin 16 and a movable positioning group. The function is that the position of tailstock can be adjusted according to the length difference of mandrel push rod. The right side sliding block plate 7 is arranged below the right side tip sliding block 6 and is fixed and tightened by a cylindrical head screw to form a sliding mechanism. The right center tightness adjusting block 8 is arranged on the right side of the right movable positioning seat 5 and is fixedly locked by a cylindrical head screw. The right center sliding block 6 is arranged on the right movable positioning seat 5 and fixed by an inner hexagonal cylindrical head screw. The lower part of the T-shaped key 4, which is provided with the right movable positioning seat 5, is connected by an inner hexagonal cylindrical head screw. The index pin 16 is installed in the movable positioning hole of the right movable positioning seat 5 and plays a role in positioning after displacement. The tailstock system formed by the movable positioning group is arranged at the right end of the main board base 1 and adjusts and positions the length distance according to the length difference of the mandrel push rod.
The index group includes: the indexing mechanism comprises a special indexing disc 10, an indexing positioning pin seat 11, an indexing pin 12, an indexing pin innerspring 13, an indexing pin cap 14 and a pin 15. The inner spring 13 of the index pin is arranged in the index pin 12, so that the index pin can elastically contract when indexing is performed in product processing, and the automatic locking function is realized. The index pin 12 is installed in a pin positioning hole on the index positioning pin seat 11, and the index pin 12 performs telescopic motion in the pin hole to position and lock the special index plate 10. The index pin cap 14 is screwed after the index pin 12 is installed, and plays a role of manually pulling apart the index pin 12 when the special index plate 10 rotates to an angle. The special indexing disc 10 is installed on the reference positioning part of the mandrel push rod and plays a role in linking the indexing of the mandrel push rod. The indexing group forms a positioning indexing system, is arranged in the left front of the main board base 1, can position different reference positions according to the indexing of the products such as the mandrel push rod, and can adjust the position to perform indexing on the mandrel push rod left and right by the indexing system.
The tailstock system formed by the movable positioning group of the special indexing grinder is characterized in that due to the centre structure, when the mandrel push rod is machined, if the mandrel push rod is ground along the axial direction of the mandrel push rod, the special indexing grinder is adjusted on a sine magnetic table by using a magnetic table, the angle range is only allowed to be within 0-14 degrees, and the angle range cannot be larger than 14 degrees, otherwise, the grinding wheel grinds the right centre slide block 6. If the grinding direction without grinding requires that the sine magnetic table can be rotated by 90 degrees, so that the grinding lines form a 90-degree direction on the axis of the push rod, and the angle adjustment range of the sine magnetic table is allowed to be 0-25 degrees.
The utility model discloses during the use of special dividing grinder, when adjusting movable positioning group system according to product length, loosen hexagon socket head cap head screw on T shape key 4 and extract transposition round pin 16, the movable positioning group system that moves back then puts the dabber push rod special dividing grinder on, with movable positioning group antedisplacement apical plate to dabber push rod right-hand member downthehole, then will shift round pin 16 and insert in the locating hole, screw up on the key 4 with T shape. After the mandrel push rod is installed on the special indexing grinder, the mandrel push rod is rotated to check the pushing degree of the push rod so as to adjust the tightness of the push rod by adjusting the screws on the right center tightness adjusting block 8 and then locking the screws on the right center slide block 6.
The utility model discloses a special dividing grinder design is exquisite, simple structure, convenient operation, and very nimble practicality is strong, can improve machining efficiency more than 30% to processing capacity and market share have been improved.
Example 2
A mandrel push rod processing method of an expansion tank die comprises the steps of processing a first section of a positioning round rod of two sections of stepped round rods of a mandrel push rod, processing a positioning flat on the positioning round rod, and processing a multi-surface cone on a second section of the positioning round rod, wherein as shown in figures 6-7, the method specifically comprises the following steps:
s1: roughly machining two sections of round rods in the shape of the mandrel push rod, and specifically comprising the following steps:
(1) the shape of the push rod is processed, drilling and clamping jacking are carried out through a common lathe, the large-end flat D, the length H of the push rod, the length I of the taper rod, the positioning round rod G and the exhaust transverse hole P are subjected to rough machining, the large-end flat D is processed according to the size of a large-end excircle K, and the shape allowance is 0.3-0.5 mm.
(2) And (4) processing an exhaust hole J on the taper surface of the push rod, and clamping and drilling each hole on a chuck of the universal dividing head on a milling machine. And simultaneously, the rough machining allowance of the positioning flat B and the positioning flat length C of the first section of rod is 0.5 mm.
S2: the cylindrical grinder processes the big end surfaces of the first section of round rod and the cone part, and the method comprises the following specific steps:
clamping the push rod between two tops of a workbench of the cylindrical grinding machine, performing coarse grinding and precision of the size of the first section of positioning round rod G, controlling the cylindricity tolerance within 0.005mm, and then wiping the large end face of the taper to be within 0.01 of verticality. Before clamping, the center holes at the two ends of the push rod are ground, so that the roundness and the positioning precision are ensured.
S3: the surface grinding machine is used for processing each flat on a first section of round rod and comprises the following specific steps:
the push rod is clamped on the precise V-shaped jig to process the positioning flat B on the first section of rod, the parallelism of clamping alignment before processing is noted to be within 0.05mm, otherwise, the air hole position on the taper rod has deviation to influence the appearance and the quality.
S4: the surface grinding machine processes a second section of conical surface, and the specific steps are as follows:
(1) according to fig. 8, the large end flat D of the bisecting plane is machined 18 by placing the special index grinder on the machine tool table with the grinder base parallel to the longitudinal rail of the machine tool table, i.e. in the X-axis direction. And mounting a special indexing disc on a reference rod of a positioning round rod G size of the mandrel push rod for alignment and locking. And then the mandrel push rod is arranged on a special indexing grinder to carry out rotary indexing processing on each plane through a special indexing disc, and rough processing, semi-finish processing and finish processing are carried out. During rough machining, all surfaces with the size of the large-end flat D are subjected to rough machining, and then semi-finish machining and finish machining are carried out, so that the symmetry precision of the product can be well controlled. The allowance for rough machining is about 0.05-0.08mm, and the allowance for semi-finishing machining is 0.005-0.01 mm. The grinding wheel selected from 80-grit CBN grinding wheel for rough grinding, 230-grit CBN grinding wheel for semi-finish grinding and 800-grit CBN grinding wheel for finish grinding.
(2) As shown in fig. 9, the taper angle F and the major end flat length E are machined by the following dimensions: the sine magnetic table is adjusted according to the angle of the conical surface angle F, then is installed on a machine tool workbench, and then the special indexing grinder is placed on the sine magnetic table. The sine magnetic table and the special indexing grinder are parallel to the machine tool workbench, namely the X-axis direction. The machining of the conical surface angle F and the large-end flat length E value is carried out, whether the angle of the magnetic table is correct is firstly checked, two symmetrical surfaces are randomly selected firstly to carry out coarse grinding and then semi-fine grinding, the machining allowance is 0.1mm, and the allowance for calculating the E value is calculated at the same time: 0.1/sinF ° = E residual value. And then, carrying out three times of circle detection to determine whether the angle F of the conical surface of the two symmetrical surfaces is within the tolerance and whether the allowance of the value size of the large-end flat length E is correct, and if the angle F of the conical surface is not within the tolerance, carrying out new adjustment on the height of the angle adjusting block of the sine magnetic table. After the angle of the sine magnetic table is corrected, other conical surface rough grinding processing is carried out, then semi-fine grinding processing and fine grinding processing are carried out, and the dimensional tolerance of the length E value of the large end flat is ensured while the taper surface is processed. The grinding wheel selection and allowance processing process is as described in (1). The grinding mode also requires that all tapers of the mandrel push rod are completely coarsely ground, and then all tapers are completely semi-finely ground and then all tapers are completely finely ground, so that the symmetry and the size consistency can be very easily ensured.
The mandrel push rod finishes a series of processing procedures on a special angle grinder, the angle adjusting range of the special indexing grinder on a sine magnetic table by using the magnetic table is only allowed to be within 0-14 degrees, and the angle adjusting range cannot be larger than 14 degrees, otherwise, a grinding wheel grinds the tip slide block at the right side of 6. If the grinding direction without grinding requires that the sine magnetic table can be rotated by 90 degrees, so that the grinding lines form a 90-degree direction on the axis of the push rod, and the angle adjustment range of the special index grinder on the sine magnetic table is allowed to be 0-25 degrees. The special grinder can meet different indexing requirements of the push rod, the indexing is convenient, accurate and quick, the requirement on the grinding direction of a product is met, the friction force between the die core of the expansion-grouting die and the mandrel push rod is reduced, and the service life of the die core and the push rod is prolonged.
The above description is further detailed in connection with the preferred embodiments of the present invention, and it is not intended to limit the practice of the invention to these descriptions. It will be apparent to those skilled in the art that various modifications, additions, substitutions, and the like can be made without departing from the spirit of the invention.
Claims (4)
1. The utility model provides a special graduation grinder of dabber push rod processing of jar mould which characterized in that: the positioning device comprises a base positioning group, a movable positioning group and a dividing group, wherein the movable positioning group is arranged on the right side of the base positioning group, positioning adjustment is carried out during product clamping according to different lengths of push rods, and the dividing group is arranged on the left front side of the base positioning group and is used for dividing products;
the base positioning group comprises a main board base, a left end positioning seat and a left tip, wherein the left end positioning seat is installed at the left end of the main board base, and the left tip is installed in a tip fixing hole of the left end positioning seat;
the movable positioning group comprises a T-shaped key, a right-end movable positioning seat, a right-side tip sliding block, a right-side sliding block, a right-end tip tightness adjusting block, a right tip and a transposition pin, the right-side sliding block is arranged below the right-side tip sliding block, the right-end tip tightness adjusting block is arranged on the right side of the right-end movable positioning seat, the right-side tip sliding block is arranged above the right-end movable positioning seat, the T-shaped key is arranged below the right-end movable positioning seat, and the transposition pin is arranged in a movable positioning hole of the right-end movable positioning seat and plays a role in positioning after shifting;
the indexing group comprises a special indexing disc, an indexing positioning pin seat, an indexing pin and an indexing pin inner spring, wherein the indexing pin inner spring is arranged inside the indexing pin and has the function that the indexing pin elastically contracts when indexing is performed in product processing, so that the automatic locking function is achieved, the indexing pin is arranged in a pin positioning hole in the indexing positioning seat and is used for locking and positioning the indexing disc in a telescopic motion in the hole, the special indexing disc is arranged at a reference positioning part of the mandrel push rod and plays a role of linking the mandrel push rod, and the mandrel push rod is driven to perform indexing during indexing.
2. The special indexing grinder for machining the mandrel push rod of the can expanding die as claimed in claim 1, characterized in that: a transposition pin hole for positioning the movable positioning group in a moving and adjusting position is formed in the right side face of the main board base, and the transposition pin hole is connected and locked with the T-shaped key through a screw; the left side of the main board base is provided with a positioning pin hole for positioning and locking an indexing positioning pin seat, and the indexing positioning pin seat can be adjusted in left and right positions according to the position of a special indexing disc and is locked by a pin; and the left end positioning seat and the main board base are positioned by pins and then screwed down by using hexagon socket head cap screws.
3. The special indexing grinder for machining the mandrel push rod of the can expanding die as claimed in claim 1, characterized in that: the right side sliding block plate is fixedly and tightly installed below the right side center sliding block through a cylindrical head screw, the right side center tightness adjusting block is fixedly and tightly installed on the right side of the right end movable positioning seat through the cylindrical head screw, the right side center sliding block is fixedly and tightly installed above the right end movable positioning seat through the cylindrical head screw, and the T-shaped key is connected below the right end movable positioning seat through the cylindrical head screw.
4. The special indexing grinder for machining the mandrel push rod of the expansion tank die as claimed in claim 1, wherein: the indexing grooves of the special indexing disc can be manufactured according to the indexing number and angles required by a product; the tail end of the index pin is provided with an index pin cap which plays a role of manually pulling the index pin during indexing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221123811.7U CN217371620U (en) | 2022-05-11 | 2022-05-11 | Special indexing grinder for machining mandrel push rod of expansion tank die |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221123811.7U CN217371620U (en) | 2022-05-11 | 2022-05-11 | Special indexing grinder for machining mandrel push rod of expansion tank die |
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| CN217371620U true CN217371620U (en) | 2022-09-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114770246A (en) * | 2022-05-11 | 2022-07-22 | 盘起工业(大连)有限公司 | Method for machining mandrel push rod of expansion tank die and special indexing grinder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114770246A (en) * | 2022-05-11 | 2022-07-22 | 盘起工业(大连)有限公司 | Method for machining mandrel push rod of expansion tank die and special indexing grinder |
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