CN109985965B - Automobile shock absorber working cylinder expansion package tool - Google Patents
Automobile shock absorber working cylinder expansion package tool Download PDFInfo
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- CN109985965B CN109985965B CN201711485231.6A CN201711485231A CN109985965B CN 109985965 B CN109985965 B CN 109985965B CN 201711485231 A CN201711485231 A CN 201711485231A CN 109985965 B CN109985965 B CN 109985965B
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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 16
- 230000035939 shock Effects 0.000 title claims abstract description 16
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000003754 machining Methods 0.000 abstract description 9
- 238000012856 packing Methods 0.000 abstract description 6
- 230000007246 mechanism Effects 0.000 description 8
- 238000012545 processing Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
- B21D37/12—Particular guiding equipment, e.g. pliers; Special arrangements for interconnection or cooperation of dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to an expanding and packing tool for an automobile shock absorber working cylinder, which comprises an upper die set, a lower die set and a bottom die set, wherein the upper die set is fixed on an upper top plate of a hydraulic press, the bottom die set is fixed on a workbench of the hydraulic press, the bottom die set is provided with a conical expansion rod, a male die consisting of three lobes is arranged on a male die holder, the conical expansion rod is utilized to jack up the split male die through the relative movement of the upper die set, the lower die set and the bottom die set, a workpiece can be expanded to a required shape by matching with a female die, the working cylinder to be machined is automatically clamped, the operation is simple, time and labor are saved, and the machining quality is stable.
Description
Technical Field
The invention relates to the technical field of machining of working cylinders of automobile shock absorbers, in particular to an expanding and packing tool for the working cylinders of the automobile shock absorbers.
Background
In mechanical equipment, a metal pipe is an important part with a large number of applications, an automobile shock absorber working cylinder belongs to a thin-wall pipe cylindrical material, the mechanical machining precision requirement is high, machining is not easy, special machining equipment is required to be purchased for the expansion machining of the working cylinder at present, the production cost is high, the working procedure is complex, the production efficiency is low, and the equipment utilization rate is low.
The Chinese patent with the authority of bulletin number of CN 201304450Y discloses a bulging bag die of an oil storage cylinder of a shock absorber, which consists of a guiding lifting component, an oil storage cylinder clamping and positioning mechanism, an upper die component, a lower die component and an upper die plate and a lower die plate, wherein the lower die component is fixed on a working table surface of a hydraulic machine through the lower die plate, a workpiece clamping and positioning component is arranged outside the lower die component, the upper die component is fixed on an upper bottom plate of the hydraulic machine through the upper die plate, the guiding lifting component is symmetrically arranged on two sides of the upper die component and the lower die component, and two ends of the guiding lifting component are fixedly connected with the upper chess board and the lower chess board respectively. The die is reasonable in design, high in machining precision, convenient to operate, high in working efficiency, and quite convenient to use, the manufactured bulge bags meet the precision requirement, and the die and the pressure equipment are relatively independent and can be detached at any time. According to the utility model, as the handle is required to be pulled to clamp and unclamp a workpiece every time when one workpiece is processed, the operation is complex, and the production efficiency is low.
The Chinese patent with the issued bulletin number of CN 101664768A discloses a processing device and a processing method for an expansion groove of a tube expander, wherein the processing device comprises a frame body, a core rod, a cushion block, a propelling mechanism and a clamping and positioning mechanism, and is characterized in that: the frame body consists of two upright guide rails and two cross beams arranged at the upper end and the lower end of the guide rails; the pushing mechanism is arranged on the upper cross beam, and the clamping and positioning mechanism is arranged on the lower cross beam, so that the top head of the jacking pressure head of the pushing mechanism and the center point of the three-jaw chuck of the clamping and positioning mechanism are on a straight line; the Rockwell hardness of the metal core rod is at least 56 degrees, and the Rockwell hardness of the cushion block in a flat drum shape is at least 56 degrees. The processing device and the processing method for the expansion groove of the pipe expander are adopted to roll the expansion groove convex edge outside the expansion groove, the inside of the convex edge is circular, the inner inclined surface of the outer surface and the groove surface form a circular arc R transition angle, and the circular arc angle strength is larger than the right angle strength, so that the circular arc convex edge is wear-resistant, not broken, not fluffed and not flanging, and is durable and long in service life. However, the invention is a whole set of special equipment, is only suitable for processing shorter pipe fittings, needs to be provided with a special propelling mechanism, and has the advantages of low production efficiency, high manufacturing cost, low universality, responsibility in the operation process and unstable quality.
Disclosure of Invention
In view of the above, the invention aims to overcome the defects of the prior art, and provides an expanding and packing tool for a working cylinder of an automobile shock absorber, which can be used on a common hydraulic machine, can push a split male die open by utilizing a conical core block, can expand a workpiece to a required shape by being matched with a female die, and has the advantages of automatic clamping of the working cylinder to be processed, simplicity in operation, time and labor saving and stable processing quality.
In order to achieve the above purpose, the invention adopts the following technical scheme: the upper module comprises a top plate, a guide sleeve and a centering head, the guide sleeve is fixed on the lower surfaces of two ends of the top plate through a first screw, the centering head is sleeved on a second screw and can slide up and down, the second screw is in threaded connection with the center of the lower surface of the top plate, and a compression spring is arranged between the centering head and the top plate; the lower die set comprises a connecting plate, a stand column, a male die holder, a male die cover and a female die, wherein the lower end of the stand column is in threaded connection with two ends of the connecting plate, the upper end of the stand column is sleeved in an inner hole of the guide sleeve, the male die holder is fixed at the center of the connecting plate through a third screw, the male die is arranged on the upper part of the male die holder, the female die is arranged outside the male die holder, the female die is fixed on the connecting plate through a fourth screw, the male die cover is arranged on the top of the female die, the male die cover is connected with the upper end of the female die through a pin, and the male die holder penetrates out of a round hole in the top of the male die cover; the bottom die set comprises a lower base, a pull rod, a disc spring and an expansion rod, wherein the center of the lower base is fixed through a screw five, the other end of the expansion rod penetrates through a center hole of a connecting plate to enter an inner hole of the male die seat, the disc spring is arranged between the lower base and the connecting plate, and the pull rod sequentially penetrates through the connecting plate and the disc spring to be in threaded connection with the lower base.
As a preferable structure of the invention, the upper part of the male die holder is provided with male die grooves which are symmetrically arranged on the outer wall of the male die holder, and the groove wall of the male die groove is provided with spring grooves along the circumference.
As a preferable structure of the invention, the male die is equally distributed by the same three parts around the axis at 120 degrees, each part is of a trapezoid structure with a wide upper part and a narrow lower part, the upper part and the lower part of the outer side of each part are respectively provided with a spring groove, the middle part of each part is provided with a bulge, and the inner surfaces of the three parts jointly form a conical inner cavity with the narrow upper part and the wide lower part.
As a preferable structure of the invention, a tension spring is arranged in the spring groove, and surrounds the male die holder and the male die to fix the male die in the male die groove of the male die holder.
As a preferable structure of the invention, the inner wall of the female die is provided with a groove, and the shape of the groove is the same as that of the protrusion of the outer surface of the male die.
As an optimal structure of the invention, two ends of the lower base are respectively provided with a limiting block, the limiting blocks are arc-shaped, the inner arcs of the two limiting blocks are opposite, and the height of each limiting block is half of the height of the disc spring.
As a preferable structure of the present invention, the column is longer than the cylinder by 8 cm, the compression spring is compressed to the shortest time, and the distance from the top plate to the lower end surface of the cylinder is at least 3 cm smaller than the length of the column.
As a preferable structure of the invention, the upper part of the pull rod is provided with a rod head with the outer diameter larger than the outer diameter of the rod body of the pull rod, the rod head limits the connecting plate to be separated from the pull rod, and the expansion rod is always kept in the inner hole of the convex die holder.
As a preferred structure of the invention, the top edge of the male die holder is provided with a 45 degree chamfer.
As a preferable structure of the invention, the compression spring 5 is provided with a displacement sensor, and the displacement sensor, the buzzer, the alarm indicator lamp and the hydraulic press switch are electrically connected with the microprocessor.
The beneficial effects of the invention are as follows:
1. the invention provides an expanding and packing tool for an automobile shock absorber working cylinder, which utilizes a conical core block to jack a split male die, and can expand a workpiece to a required shape by being matched with a female die, so that the machining precision is high, the quality is stable, the working cylinder to be machined is automatically clamped, the operation is simple, and the time and the labor are saved.
2. The upper part of the male die base is provided with male die grooves which are symmetrically arranged on the outer wall of the male die base, and the male die grooves are independently and symmetrically arranged, so that the male die is convenient to install and detach and convenient to maintain or replace.
3. The male die is formed by equally distributing the same three parts around the axis at 120 degrees, each part is of a trapezoid structure with the upper part wide and the lower part narrow, the inner surfaces of the three parts jointly form a conical inner cavity with the upper part narrow and the lower part wide, the male die is embedded into the male die groove, the male die is convenient to install and detach and maintain or replace, and the inner surface of the male die is tightly attached to the expansion rod.
4. The spring groove is internally provided with a tension spring, the tension spring surrounds the male die holder and the male die, the male die is fixed in the male die groove of the male die holder, the tension spring enables the male die to return completely, and the machined working cylinder is ensured to withdraw smoothly.
5. The inner wall of the female die is provided with a groove, the middle part of the outer side of each part of the male die is provided with a bulge, and the shape of the groove is the same as that of the bulge, so that the stability of the expanding bag quality is ensured.
6. The lower base both ends respectively set up a stopper, the stopper is arc and two stopper inner arcs are relative, the height of stopper is the high half of dish spring to this safe handling of guaranteeing dish spring avoids surpassing the stroke of dish spring, increase of service life.
7. The stand is longer than the working cylinder by 8 cm, the compression spring is compressed to be shortest, the distance from the top plate to the lower end face of the working cylinder is at least 3 cm smaller than the length of the stand, the working cylinder is protected, and the working cylinder is prevented from being deformed and damaged due to excessive stress.
8. The upper part of the pull rod is provided with a rod head with the outer diameter larger than the outer diameter of the rod body of the pull rod, the rod head limits the connecting plate to prevent the connecting plate from being separated from the pull rod, and the expansion rod is always kept in an inner hole of the male die base, so that the expansion rod can move smoothly in the male die base, and the position is prevented from relative movement to influence the processing quality of a product.
9. The top edge of terrace die seat sets up 45 degrees chamfers, makes things convenient for the working cylinder location, prevents to damage the working cylinder inner wall.
And 10, a displacement sensor is arranged on the compression spring 5, when the compression spring 5 is stressed excessively, the sensor detects that the conductive displacement stroke data exceeds a set value, the microprocessor sends out an alarm instruction, the buzzer sends out an alarm sound, and the alarm indicator lights up and simultaneously the hydraulic press switch is turned off, so that deformation damage caused by excessive stress of the working cylinder 31 is avoided.
Drawings
FIG. 1 is an assembly schematic diagram of an automobile shock absorber working cylinder expansion tool of the present invention;
FIG. 2 is a schematic diagram of a half-section structure of a female die of an expanding and packing tool of an automobile shock absorber working cylinder;
FIG. 3 is an enlarged schematic diagram of a male die holder structure of an expanding tool for an operating cylinder of an automobile shock absorber;
FIG. 4 is an enlarged schematic diagram of a male die structure of an expanding tool for an operating cylinder of an automobile shock absorber;
The upper die set 1, the top plate 2, the screw one 3, the guide sleeve 4, the compression spring 5, the centering head 6, the screw two 7, the lower die set 8, the connecting plate 9, the upright post 10, the convex die holder 11, the tension spring 12, the convex die 13, the screw three 14, the screw four 15, the concave die 16, the convex die cover 17, the pin 18, the lower base 19, the limiting block 20, the disc spring 21, the pull rod 22, the expansion rod 23, the screw five 24, the groove 25, the pin hole 26, the limiting groove 27, the spring groove 28, the convex die groove 29, the bulge 30, the working cylinder 31 and the bottom die set 32.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Example 1
As shown in fig. 1-4, an expanding and packing tool for an automobile shock absorber working cylinder comprises an upper die set 1, a lower die set 8 and a bottom die set 32.
The upper module 1 comprises a top plate 2, a guide sleeve 4 and a centering head 6, the guide sleeve 4 is fixed on the lower surfaces of two ends of the top plate 2 through a first screw 3, the centering head 6 is sleeved on a second screw 7 and can slide up and down, the second screw 7 is in threaded connection with the center of the lower surface of the top plate 2, a compression spring 5 is arranged between the centering head 6 and the top plate 2, the second screw 7 is 10 cm long, and the effective stroke of the compression spring 5 is 6 cm.
The lower die set 8 comprises a connecting plate 9, an upright post 10, a male die holder 11, a male die 13, a male die cover 17 and a female die 16, wherein the lower end of the upright post 10 is in threaded connection with two ends of the connecting plate 9, and the upper end of the upright post 10 is sleeved in an inner hole of the guide sleeve 4.
The male die holder 11 is fixed at the center of the connecting plate 9 through a screw III 14, the male die 13 is arranged at the upper part of the male die holder 11, a bulge 30 is arranged on the outer side surface of the male die 13, the female die 16 is arranged outside the male die holder 11, the female die 16 is fixed on the connecting plate 9 through a screw IV 15, the male die cover 17 is arranged at the top of the female die 16, the male die cover 17 is connected to the upper end of the female die 16 through a pin 18, and the male die holder 11 penetrates out of a round hole at the top of the male die cover 17;
the upper part of the male die seat 11 is provided with male die grooves 29, the male die grooves 29 are symmetrically arranged on the outer wall of the male die seat 11, and the male die grooves 29 are independently symmetrically arranged, so that the male die 13 is convenient to mount and dismount, and maintenance or replacement is convenient.
The male die 13 is equally distributed by the same three parts around the axis at 120 degrees, each part is of a trapezoid structure with the upper part wide and the lower part narrow, the inner surfaces of the three parts jointly form a conical inner cavity with the upper part narrow and the lower part wide, the male die 13 is embedded into the male die groove 29, the male die 13 is convenient to install and detach and convenient to maintain or replace, and the inner surface of the male die 13 is tightly attached to the expansion rod 23. The inner wall of the female die 16 is provided with a groove 25, the middle part of the outer side of each part of the male die 13 is provided with a protrusion 30, the shape of the groove 25 is the same as that of the protrusion 30, the relative positions of the groove 25 and the protrusion 30 are fixed, and the stability of the expanding bag quality is ensured.
The upper part and the lower part of the groove wall of the male mold groove 29 are provided with spring grooves 28 along the circumference, the upper part and the lower part of the outer side of each part of the male mold 13 are respectively provided with a spring groove 28, the spring grooves 28 are internally provided with tension springs 12, the tension springs 12 encircle the male mold seat 11 and the male mold 13, the male mold 13 is fixed in the male mold groove 29 of the male mold seat 11, the tension springs 12 enable the male mold 13 to return completely, and the processed working cylinder is ensured to exit smoothly.
The upright post 10 is 8 cm longer than the working cylinder 31, the compression spring 5 is compressed to the shortest time, the distance from the top plate 2 to the lower end surface of the working cylinder 31 is at least 3 cm smaller than the length of the upright post 10, and the working cylinder 31 is protected from being deformed and damaged due to excessive stress.
The bottom die set 32 comprises a lower base 19, a pull rod 22, a disc spring 21 and an expansion rod 23, wherein the center of the lower base 19 is fixed through a screw five 24, the other end of the expansion rod 23 penetrates through a center hole of the connecting plate 9 to enter an inner hole of the male die seat 11, the disc spring 21 is arranged between the lower base 19 and the connecting plate 9, and the pull rod 22 sequentially penetrates through the connecting plate 9 and the disc spring 21 to be in threaded connection with the lower base 19.
The two ends of the lower base 19 are respectively provided with a limiting block 20, the limiting blocks 20 are arc-shaped, the inner arcs of the two limiting blocks 20 are opposite, the height of each limiting block 20 is 5 cm, and the height of each disc spring 21 is 10 cm, so that the safe use of the disc springs 21 is ensured, the effective stroke exceeding the disc springs 21 is avoided, and the service life of the disc springs 21 is prolonged.
The upper portion of the pull rod 22 is provided with a rod head with the outer diameter larger than the outer diameter of the pull rod body, the rod head limits the connecting plate 9 to prevent the connecting plate from being separated from the pull rod 22, and the expansion rod 23 is always kept in an inner hole of the convex die holder 11, so that the expansion rod 23 can move smoothly in the inner hole of the convex die holder 11, and the phenomenon that the relative movement of the position affects the processing quality of products is avoided.
The invention relates to a use method of an automobile shock absorber working cylinder expanding tool, which comprises the following steps: the top plate 2 is fixed above the four-column hydraulic press, the lower base 19 is fixed on a hydraulic press workbench, the centers of the centering head 6, the male die seat 11 and the expansion rod 23 are adjusted to be on the same plumb line, and the upright post 10 is sleeved in the inner cylinder of the guide sleeve 4, so that the centers of the upright posts are positioned on the same plumb line. When the working cylinder 31 is subjected to expansion, the inner hole of the working cylinder 31 is aligned with the upper end of the male die holder 11, and the working cylinder 31 is sleeved in a gap between the male die holder 11 and the female die 16.
Then, the hydraulic press is started, the upper module 1 moves downwards, the lower end of the centering head 6 can enter the inner hole of the working cylinder 31, and the centering head 6 is propped against the outer wall of the working cylinder 31. The upper die set 1 continues to move downwards, the upright post 10 is contacted with the top plate 2, the upright post 10 is pushed to move downwards, the upright post 10 pushes the lower die set 8 to move downwards together, the expansion rod 23 moves upwards relative to the lower die set 8, the conical surface at the top of the expansion rod 23 pushes the male die 13 to move transversely, and the bulge 30 at the outer side of the male die 13 applies pressure to the inner wall of the working cylinder 31 to expand the male die 13. Because the outer wall of the working cylinder is tightly attached to the female die 16, the groove 25 is arranged at the position, corresponding to the bulge 30 at the outer side of the male die 13, of the inner wall of the female die 16, and the male die 13 is fully opened along with the relative upward movement of the expansion rod 23, when the bulge 30, the working cylinder 31 and the groove 25 are tightly attached together, the expansion of the working cylinder is completed, at the moment, the connecting plate 9 is contacted with the limiting block 20 to stop descending, the hydraulic press starts to retract, and the working cylinder is taken down after the hydraulic press returns to the initial state, so that the complete working cylinder expansion machining process is completed.
Example two
The structures of the present embodiment and the first embodiment are substantially the same, and the difference is that: through holes are formed in the corresponding positions of the top plate 2 in the center of the top surface of the inner hole of the guide sleeve 4, the inner cavity of the guide sleeve 4 is communicated with the outside of the holes through the through holes, and when the guide sleeve 4 and the upright post 10 relatively move, the pressure of the inner cavity of the guide sleeve 4 is regulated, so that the upright post 10 can move in the inner hole of the guide sleeve 4 more smoothly.
Example III
The structures of the present embodiment and the first embodiment are substantially the same, and the difference is that: the top edge of the male die seat 11 is provided with a 45-degree chamfer, so that the inner hole of the working cylinder 31 is positioned conveniently, and the inner wall of the working cylinder 31 is prevented from being damaged.
Example IV
The structures of the present embodiment and the first embodiment are substantially the same, and the difference is that: the displacement sensor is arranged on the compression spring 5, the stroke of the compression spring 5 can be accurately measured by the displacement sensor, the displacement sensor is electrically connected with the microprocessor, the microprocessor is electrically connected with the buzzer, the alarm indicator lamp and the hydraulic press switch, and the displacement sensor, the microprocessor, the buzzer, the alarm indicator lamp and the hydraulic press switch are all connected with the power supply.
When the compression spring 5 receives the pressure of the working cylinder 31, deformation occurs, displacement data can be obtained by the displacement sensor, the displacement sensor transmits the detected stroke data of the compression spring 5 to the microprocessor, if the compression spring 5 is stressed excessively, the microprocessor sends out an alarm instruction, the buzzer sends out an alarm sound, the alarm indicator lights up, and meanwhile, the hydraulic press switch is turned off, so that deformation damage caused by excessive stress of the working cylinder 31 is avoided.
Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present invention, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (1)
1. The expansion tool for the working cylinder of the automobile shock absorber is characterized by comprising an upper module (1), a lower module (8) and a bottom die set (32);
The upper module (1) comprises a top plate (2), a guide sleeve (4) and a centering head (6), wherein the guide sleeve (4) is fixed on the lower surfaces of two ends of the top plate (2) through a first screw (3), the centering head (6) is sleeved on a second screw (7) and can slide up and down, the second screw (7) is in threaded connection with the center of the lower surface of the top plate (2), and a compression spring (5) is arranged between the centering head (6) and the top plate (2);
The lower die set (8) comprises a connecting plate (9), a stand column (10), a punch seat (11), a punch (13), a punch cover (17) and a female die (16), wherein the lower end of the stand column (10) is in threaded connection with two ends of the connecting plate (9), the upper end of the stand column (10) is sleeved in an inner hole of the guide sleeve (4), the punch seat (11) is fixed at the central position of the connecting plate (9) through a screw III (14), the punch (13) is arranged at the upper part of the punch seat (11), a bulge (30) is arranged on the outer side surface of the punch (13), the female die (16) is arranged outside the punch seat (11), the female die (16) is fixed on the connecting plate (9) through a screw IV (15), the punch cover (17) is arranged at the top of the female die (16), the punch cover (17) is connected with the upper end of the female die (16) through a pin (18), and the punch seat (11) penetrates out from a round hole at the top of the punch cover (17);
the bottom die set (32) comprises a lower base (19), a pull rod (22), a disc spring (21) and an expansion rod (23), wherein the expansion rod (23) is fixed at the center of the lower base (19) through a screw five (24), the other end of the expansion rod (23) penetrates through a central hole of the connecting plate (9) to enter an inner hole of the male die seat (11), the disc spring (21) is arranged between the lower base (19) and the connecting plate (9), and the pull rod (22) sequentially penetrates through the connecting plate (9) and the disc spring (21) to be in threaded connection with the lower base (19);
The upper part of the male die seat (11) is provided with male die grooves (29), the male die grooves (29) are symmetrically arranged on the outer wall of the male die seat (11), and spring grooves (28) are circumferentially arranged on the groove wall of the male die grooves (29); the male die (13) is formed by equally distributing the same three parts around the axis at 120 degrees, each part is of a trapezoid structure with a wide upper part and a narrow lower part, a spring groove (28) is respectively arranged at the upper part and the lower part of the outer side of each part, a bulge (30) is arranged at the middle part, conical inner cavities with the narrow upper part and the wide lower part are formed on the inner surfaces of the three parts together, and the male die (13) is embedded into the male die groove (29); a tension spring (12) is arranged in the spring groove (28), and the tension spring (12) surrounds the male die seat (11) and the male die (13); a groove (25) is formed in the inner wall of the female die (16), and the groove (25) is matched with a protrusion (30) on the outer surface of the male die (13) in shape;
Two ends of the lower base (19) are respectively provided with a limiting block (20), the limiting blocks (20) are arc-shaped, the inner arcs of the two limiting blocks (20) are opposite, and the height of each limiting block (20) is half of that of the disc spring (21); the stand column (10) is 8 cm longer than a workpiece to be processed, the compression spring (5) is compressed to the shortest time, and the distance from the top plate (2) to the lower end face of the working cylinder (31) is at least 3 cm smaller than the length of the stand column (10); the upper part of the pull rod (22) is provided with a rod head with the diameter larger than the diameter of the rod body of the pull rod, the rod head limits the connecting plate (9) to be separated from the pull rod (22), and the expansion rod (23) is always kept in the inner hole of the male die seat (11); the top edge of the male die seat (11) is provided with a 45-degree chamfer;
a displacement sensor is arranged on the compression spring (5), when the compression spring (5) is stressed excessively, the sensor detects that the conductive displacement travel data exceeds a set value, the microprocessor sends an alarm instruction, the buzzer sends an alarm sound, and the alarm indicator lights up and the hydraulic press switch is turned off, so that deformation and damage caused by excessive stress of the working cylinder (31) are avoided;
Aligning an inner hole of a working cylinder (31) with the upper end of a male die holder (11), and sleeving the working cylinder (31) into a gap between the male die holder (11) and the female die (16);
The conical surface at the top of the expansion rod (23) pushes the male die (13) to transversely move, the bulge (30) at the outer side of the male die (13) applies pressure to the inner wall of the working cylinder (31) to expand the male die (13), the male die (13) is fully opened along with the continuous relative upward movement of the expansion rod (23), and the bulge (30), the working cylinder (31) and the groove (25) are tightly attached together to complete the expansion of the working cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711485231.6A CN109985965B (en) | 2017-12-29 | 2017-12-29 | Automobile shock absorber working cylinder expansion package tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711485231.6A CN109985965B (en) | 2017-12-29 | 2017-12-29 | Automobile shock absorber working cylinder expansion package tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109985965A CN109985965A (en) | 2019-07-09 |
| CN109985965B true CN109985965B (en) | 2024-06-25 |
Family
ID=67110408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711485231.6A Active CN109985965B (en) | 2017-12-29 | 2017-12-29 | Automobile shock absorber working cylinder expansion package tool |
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| CN115284002A (en) * | 2022-07-22 | 2022-11-04 | 上海保隆汽车科技(安徽)有限公司 | Long pipe diameter expanding device and diameter expanding method |
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| CN201008915Y (en) * | 2006-12-27 | 2008-01-23 | 隆昌山川减振器工业有限公司 | Expansion mould of surge drum |
| CN207709678U (en) * | 2017-12-29 | 2018-08-10 | 南阳淅减汽车减振器有限公司 | A kind of working cylinder rises packet machining tool |
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| JP2808537B2 (en) * | 1990-02-08 | 1998-10-08 | 株式会社キッツ | Expansion equipment for thin steel pipes |
| CN2818537Y (en) * | 2005-08-24 | 2006-09-20 | 朱良方 | Externally-hinged and internally-expanded mould |
| CN201304450Y (en) * | 2008-12-08 | 2009-09-09 | 南阳淅减汽车减振器有限公司 | Expansion convex hull mold for oil storage cylinder of shock absorber |
| CN201783571U (en) * | 2009-07-08 | 2011-04-06 | 富奥汽车零部件股份有限公司 | Shock absorber oil storage cylinder convex hull bulging mould |
| CN101664768A (en) * | 2009-09-11 | 2010-03-10 | 合肥兰博动力胀管机具有限公司 | Processing device used for casing roller expansion slot and processing method thereof |
| CN101670401A (en) * | 2009-09-24 | 2010-03-17 | 成都联创精密机械有限公司 | Hydraulic expanding die of oil storage drum of shock absorber |
| CN203578554U (en) * | 2013-10-18 | 2014-05-07 | 南阳淅减汽车减振器有限公司 | Shock absorber oil storage cylinder bud and rib expansion mold |
| CN205362470U (en) * | 2016-01-12 | 2016-07-06 | 安徽工程大学 | Drape utensil that expands takes off material mechanism |
| CN206779278U (en) * | 2017-04-21 | 2017-12-22 | 成都腾达模具有限公司 | Expanding die for connector in nuclear power generation device |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201008915Y (en) * | 2006-12-27 | 2008-01-23 | 隆昌山川减振器工业有限公司 | Expansion mould of surge drum |
| CN207709678U (en) * | 2017-12-29 | 2018-08-10 | 南阳淅减汽车减振器有限公司 | A kind of working cylinder rises packet machining tool |
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