CN116921591B - Arc spring press - Google Patents
Arc spring press Download PDFInfo
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- CN116921591B CN116921591B CN202311197175.1A CN202311197175A CN116921591B CN 116921591 B CN116921591 B CN 116921591B CN 202311197175 A CN202311197175 A CN 202311197175A CN 116921591 B CN116921591 B CN 116921591B
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- 238000000034 method Methods 0.000 claims description 23
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 abstract description 22
- 238000004519 manufacturing process Methods 0.000 abstract description 19
- 238000007493 shaping process Methods 0.000 abstract description 18
- 230000005540 biological transmission Effects 0.000 description 30
- 238000003825 pressing Methods 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F35/00—Making springs from wire
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Clamps And Clips (AREA)
- Springs (AREA)
Abstract
The application relates to the technical field of arc spring manufacturing, in particular to an arc spring press, which comprises: the clamp comprises an arc-shaped rod, one end of the arc-shaped rod is provided with a rotating rod, the rotating center of the rotating rod is fixedly provided with a rotating shaft, and the side surfaces of the two ends of the rotating shaft are provided with annular clamping grooves; the locking piece is provided with a through hole which is matched with the section of the arc-shaped rod; the locking piece is provided with a locking plate; the machine frame comprises a machine frame body, wherein the machine frame body comprises a pair of vertical plates, the vertical plates are provided with rotating shaft mounting grooves, the rotating shaft mounting grooves extend out of the side walls of the vertical plates in the same direction to form openings, and the radial dimension of each rotating shaft mounting groove is matched with that of each annular clamping groove; a limiting block is fixedly arranged on the inner side of the vertical plate, and the vertical plate further comprises a locking piece which is movably arranged; the device also comprises a driving device, wherein the driving device is used for driving the rotating shaft to rotate. Can realize twice pressurization shaping operation before and after heat treatment, promote production efficiency and reduce manufacturing cost.
Description
Technical Field
The application relates to the technical field of arc spring manufacturing, in particular to an arc spring press.
Background
Arc springs are commonly used in dual mass flywheels for internal combustion engine drive systems, and in the process of shaping the arc springs, a press is required to shape the semi-finished spring. In the process of producing the arc-shaped spring, the spring needs to be pressurized and shaped twice, the initial shaping of the spring needs to be realized before the heat treatment of the spring for the first time so as to ensure that the radius and radian corresponding to the arc-shaped spring meet the process requirements, and the spring needs to be subjected to setting treatment after the heat treatment is finished for the second time so that the arc length of the arc-shaped spring meets the final requirements. In the existing arc spring production process, two sets of pressurizing systems are often adopted when the springs are subjected to heat treatment and standing treatment, two sets of clamps correspond to the two sets of pressurizing systems, namely, the springs are arranged on one set of clamps before heat treatment and are shaped through the pressurizing systems corresponding to the clamps. After the heat treatment is completed, the spring needs to be taken out, and after the spring is installed on the other set of clamps, the setting treatment is realized through a pressurizing system corresponding to the other set of clamps. Therefore, the existing press cannot be compatible with the twice pressing and shaping process of spring molding at the same time, thereby influencing the production efficiency and the production cost.
Disclosure of Invention
In order to overcome the defects in the prior art, the application provides the arc spring press machine which can realize twice pressurization shaping operation before and after heat treatment, improve the production efficiency and reduce the production cost.
In order to achieve the above object, the present application is realized by the following technical scheme:
an arcuate spring press comprising: the clamp comprises an arc-shaped rod, one end of the arc-shaped rod is provided with a rotating rod, the rotating center of the rotating rod is fixedly provided with a rotating shaft, and the side surfaces of the two ends of the rotating shaft are provided with annular clamping grooves;
the clamp also comprises a locking piece, wherein the locking piece is provided with a through hole which is matched with the section of the arc-shaped rod; the arc-shaped rod can pass through the perforation in the process that the rotating rod drives the arc-shaped rod to rotate towards the direction A; the locking piece is provided with a locking piece for limiting the arc-shaped rod penetrating through the through hole to reversely rotate towards the direction A; the locking piece is provided with a second connecting rod which is rotatably arranged on the rotating shaft;
the machine frame comprises a machine frame body, wherein the machine frame body comprises a pair of vertical plates, the vertical plates are provided with rotating shaft mounting grooves, the rotating shaft mounting grooves extend out of the side walls of the vertical plates in the same direction to form openings, and the radial dimension of each rotating shaft mounting groove is matched with that of each annular clamping groove; the inner side of the vertical plate is fixedly provided with a limiting block, and the vertical plate further comprises a locking piece which is movably arranged, wherein the locking piece is used for being matched with the limiting block to limit the second connecting rod between the locking piece and the limiting block;
the device also comprises a driving device, wherein the driving device is used for driving the rotating shaft to rotate.
The application relates to an arc spring press, which is characterized in that a clamp is detachably arranged on a frame body, and the installation method comprises the following steps: the pair of annular clamping grooves are completely placed into the rotating shaft mounting groove, the locking piece is rotated along the direction A until the second connecting rod is attached to the limiting block, and the locking piece is moved to the locking piece and the limiting block to position the two circumferential sides of the second connecting rod, so that the whole fixture is positioned, and at the moment, the whole fixture cannot move radially.
Based on the device, the method for shaping the radius and the radian of the spring by the arc spring press machine before heat treatment of the spring comprises the following steps: firstly, locking a spring on the clamp, specifically, sleeving the spring on an arc-shaped rod, and rotating a rotating rod along the direction A, so that the front end of the arc-shaped rod passes through the through hole to realize unidirectional locking; then the whole fixture is installed on the frame body to complete positioning; then, starting a driving device to drive the rotating rod and the arc-shaped rod to rotate to a preset position along the direction A so as to realize shaping of the spring; and finally, integrally removing the clamp so as to integrally enter a heat treatment process.
The working method for setting the arc spring by the arc spring press machine comprises the following steps: firstly, mounting a clamp provided with an arc spring on a frame body to realize positioning; moving the locking plate to an unlocking state; then, setting is carried out, the rotating rod and the arc-shaped rod are driven by the driving device to reciprocate for preset times, the arc-shaped spring is compressed and released for preset times, and setting operation is completed; and finally, taking down the spring.
Therefore, the arc spring press machine can realize twice pressurization shaping operation before and after heat treatment, and the spring is not required to be detached from the clamp between the twice pressurization shaping operation, so that the production efficiency can be improved, and the production cost can be reduced.
Further, according to the arc spring press machine disclosed by the application, the extending direction of the rotating shaft mounting groove is integrally upward. As a preferable scheme of the application, after the annular clamping groove enters the rotating shaft mounting groove, the annular clamping groove can completely enter the rotating shaft mounting groove through self gravity, so that the radial positioning of the rotating shaft is realized.
Further, according to the arc spring press machine disclosed by the application, the transmission gear is arranged at one end of the rotating shaft, the driving device comprises the transmission rack, the transmission rack is arranged on the vertical plate at one side close to the transmission gear, the transmission rack is arranged at one side, far away from the extending direction of the rotating shaft mounting groove, of the transmission gear, and the moving direction of the transmission rack is perpendicular to the extending direction of the rotating shaft mounting groove. As a preferable scheme of the application, after the annular clamping groove completely enters the rotating shaft mounting groove, the transmission gear and the transmission rack are in meshed connection. Therefore, efficient attachment and detachment of the jig can be achieved.
Furthermore, the locking piece comprises a pair of sliding rods, the sliding rods penetrate through the vertical plates, sliding limit protruding portions are arranged at one ends, corresponding to the outer sides of the vertical plates, of the sliding rods, and when the sliding limit protruding portions are attached to the outer side faces of the vertical plates, the locking piece moves to a limit stroke position.
Furthermore, according to the arc spring press disclosed by the application, the limiting rods are arranged at one ends of the sliding rods, which are far away from the sliding limiting convex parts, and are arranged on the inner sides of the vertical plates, and when the locking pieces move to the positions where the limiting rods are attached to the inner side walls of the vertical plates, the locking pieces integrally move to the outer sides of the second connecting rods.
Furthermore, according to the arc spring press disclosed by the application, the inner side of the vertical plate is further provided with the rotation limiting convex part, and the rotation limiting convex part is used for limiting the rotation position of the rotating rod in the direction A. As a preferable scheme of the application, the rotation limiting convex part is used for limiting the rotation position of the rotating rod in the direction A, so that the compression molding of the preset radian of the spring is realized.
Furthermore, according to the arc spring press disclosed by the application, one side of the arc rod is provided with a group of limit grooves, the locking plate is obliquely arranged on the locking piece, and the front end of the locking plate extends out of one end of the locking piece corresponding to the front side in the A direction; the locking plate is contacted with the limit groove in a matched manner and is used for limiting the arc-shaped rod to reversely rotate towards the direction A.
Further, according to the arc spring press disclosed by the application, the locking piece is provided with the locking piece mounting groove corresponding to the locking piece, and the locking piece is arranged in the locking piece mounting groove;
an axial rebound piece is arranged in the locking piece mounting groove, and the axial rebound piece is arranged at the bottom of the locking piece;
the locking plate mounting groove is provided with an axial locking piece, the axial locking piece is in threaded connection with the side wall of the locking plate mounting groove, and the axial locking piece is arranged at the upper end of the locking plate. As a preferable scheme of the application, the axial locking piece is used for pressing down the locking piece so that the front end of the locking piece can be matched with the limiting groove, and when the axial locking piece is screwed in a direction away from the locking piece, the axial rebound piece is used for jacking up the locking piece so that the locking piece is separated from a position matched with the limiting groove, and at the moment, the arc-shaped rod can be reversely rotated so that the arc-shaped rod is reset.
Furthermore, the arc spring press further comprises a limiting column, wherein the limiting column penetrates through the locking plate, the axial rebound piece and the axial locking piece, the limiting column is connected with the bottom of the locking plate mounting groove, and one end, far away from the locking plate mounting groove, of the limiting column is provided with an axial limiting convex part.
The limiting column not only plays a role in positioning, but also can prevent parts in the locking plate mounting groove from falling out of the groove due to the fact that the axial locking piece is screwed out of the locking plate mounting groove upwards through the axial limiting convex part.
The technical scheme can be seen that the application has the following beneficial effects:
1. the application provides an arc spring press machine, which can realize twice pressurization shaping operation before and after heat treatment, and does not need to detach a spring from a clamp between the twice pressurization shaping operation, so that the production efficiency can be improved, and the production cost can be reduced.
2. The application provides an arc spring press, wherein after an annular clamping groove completely enters a rotating shaft mounting groove, a transmission gear and a transmission rack are in meshed connection. Therefore, efficient attachment and detachment of the jig can be achieved.
Drawings
FIG. 1 is a schematic view of an arc spring pull-through clamp according to embodiment 1;
FIG. 2 is a schematic view of an arcuate spring threading clamp mounting spring according to example 1;
FIG. 3 is a schematic view of an arc spring pull-through clamp according to embodiment 2;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;
FIG. 5 is a cross-sectional view taken along the direction B-B in FIG. 3;
FIG. 6 is an exploded view of an arcuate spring pull-through clamp according to example 2;
FIG. 7 is an enlarged view of a portion of FIG. 6 at circle A;
FIG. 8 is a schematic view of an arcuate spring threading clamp mounting spring according to example 2;
FIG. 9 is a schematic view of a curved spring press according to example 3, with the clamp according to example 1 installed;
FIG. 10 is a schematic view of a curved spring press according to example 3, with the clamp according to example 2 installed;
fig. 11 is a schematic view of a curved spring press removal jig according to embodiment 3.
In the figure: 1-an arc-shaped rod; 11-rotating a rod; 12-a first end face; 121-a limit groove; 13-a second end face; 131-an oil groove; 14-rotating shaft; 141-a transmission gear; 142-annular clamping grooves; 15-positioning segments;
2-locking member; 21-perforating; 22-locking plates; 23-a second connecting rod; 24-a first receiving cavity; 25-a locking plate mounting groove; 251-axial rebound member; 252-axial lock; 2521-screwing the step; 253-a limit column; 2531-axial limit projection;
3-positioning pieces; 31-positioning head; 32-positioning holes; 33-a first connecting rod; 331-hinging plate; 332-circumferential limit projection; 34-a second receiving cavity;
4-rotating the rebound member;
5-a frame body; 51-risers; 511-a spindle mounting slot; 52-limiting blocks; 53-locking member; 531-slide bar; 532—sliding limit tab; 533—a stop lever; 54-rotation limiting protrusions;
6-a driving device; 61-a drive rack; 62-driving cylinder;
Detailed Description
Example 1
The existing arc spring clamp is mainly positioned by adopting an outer clamp, namely, the outer side of a semi-finished spring is extruded and shaped, so that the spring is extruded by external force in the radial direction, and the deformation generated in the inner cavity of the spring is uneven. Especially when using in the arc spring of production inside and outside suit, the cover is established at the inner chamber of outside arc spring and is needed to be passed into built-in arc spring, and shaping anchor clamps lead to spring inner chamber deformation inhomogeneous can influence built-in spring's penetration and effective use.
Therefore, as shown in fig. 1 and 2, the present embodiment proposes an arc spring threading clamp for clamping a spring, which includes an arc rod 1, wherein the section of the arc rod 1 is adapted to the radial dimension of an inner hole of the spring to be clamped, one end of the arc rod 1 is provided with a rotating rod 11, and the rotation center of the rotating rod 11 coincides with the circle center of the arc rod 1;
the locking piece 2 is provided with a through hole 21 which is matched with the section of the arc-shaped rod 1, the arc-shaped rod 1 can pass through the through hole 21 in the process of rotating around the rotating center of the rotating rod 11, the locking piece 2 is provided with a locking piece 22, and one side of the arc-shaped rod 1 is provided with a group of limiting grooves 121 corresponding to the locking piece 22; the locking plate 22 is contacted with the limit groove 121 in a matching way, so as to limit the reverse rotation of the arc-shaped rod 1 towards the direction A.
The arc spring threading type clamp provided by the embodiment is characterized in that the arc rod 1 is threaded into the inner hole of the spring to limit the spring, so that the spring is formed into an arc with a preset radius, and compared with a traditional shaping mode of adopting an outer side extrusion spring, the arc spring threading type clamp can prevent the spring from producing extrusion deformation in the radial direction, can ensure the uniformity of the shape of the inner cavity of the arc spring, and is particularly suitable for arc springs with built-in springs required to be threaded into the forming inner hole. Further, due to the cooperation of the locking piece 22 and the limiting groove 121, the rotation lever 11 does not reversely rotate in the a direction due to the elastic force of the spring when the rotation lever 11 and the locking piece 2 press the spring mounted on the arc lever 1, thereby achieving locking of the spring sleeved on the arc lever 1. Has the advantage of convenient operation.
In this embodiment, as shown in fig. 3, the arc-shaped rod 1 is provided with a first end surface 12, and the limiting groove 121 is disposed on the first end surface 12. The first end face 12 is arranged, and the limiting groove 121 is machined on a plane, so that the difficulty in machining the limiting groove 121 can be reduced, and the machining cost can be reduced.
In this embodiment, as shown in fig. 5, the end of the arc-shaped rod 1 away from the first end surface 12 is provided with a second end surface 13. The whole runway-shaped that is of cross-section of arc pole 1, the interval of a pair of arc end of runway-shaped cross-section suits with the internal diameter size of spring, consequently, arc pole 1 is circular state for the cross-section, has the advantage of easy processing, can practice thrift processing cost. In this embodiment, the second end surface 13 is provided with an oil groove 131 for storing lubricating grease, so as to reduce friction between the arc-shaped rod 1 and the perforation 21 and the positioning hole 32.
As shown in fig. 1 and 2, in this embodiment, a rotation shaft 14 is provided corresponding to the rotation center of the rotation lever 11, and the locking member 2 is provided on the rotation shaft 14. In this embodiment, the rotating shaft 14 is fixed to the rotating rod 11 through a pin. One end of the rotating shaft 14 is provided with a transmission gear 141, and side surfaces of two ends of the rotating shaft 14 are provided with annular clamping grooves 142.
In this embodiment, the locking member 2 is provided with a second connecting rod 23, and the second connecting rod 23 is disposed on the rotating shaft 14. In this embodiment, the second connecting rods 23 are rotatably disposed on the rotation shaft 14, and the second connecting rods 23 are disposed in pairs on both sides of the rotation shaft 11.
In this embodiment, as shown in fig. 4, the locking piece 22 is obliquely disposed on the locking piece 2, and the front end of the locking piece 22 extends out of the front end of the locking piece 2 corresponding to the direction a.
In this embodiment, a lock plate mounting groove 25 is formed in the locking member 2 corresponding to the lock plate 22, and the lock plate 22 is disposed in the lock plate mounting groove 25; an axial rebound member 251 is arranged in the lock plate mounting groove 25, and the axial rebound member 251 is arranged at the bottom of the lock plate 22; the locking plate mounting groove 25 is provided with an axial locking piece 252, the axial locking piece 252 is in threaded connection with the side wall of the locking plate mounting groove 25, and the axial locking piece 252 is arranged at the upper end of the locking plate 22.
Still include spacing post 253, spacing post 253 runs through locking plate 22, axial rebound piece 251 and axial retaining piece 252, spacing post 253 is connected with locking plate mounting groove 25 bottom, spacing post 253 is kept away from locking plate mounting groove 25 one end and is equipped with axial spacing convex part 2531.
The axial locking piece 252 is used for pressing down the locking piece 22, so that the front end of the locking piece 22 can be matched with the limiting groove 121, when the axial locking piece 252 is screwed in the direction away from the locking piece 22, the axial rebound piece 251 is used for jacking up the locking piece 22, so that the locking piece 22 is separated from the position matched with the limiting groove 121, and at the moment, the arc-shaped rod 1 can be reversely rotated, so that the arc-shaped rod 1 is reset. The limiting posts 253 serve both a positioning function and a function of preventing the axial locking member 252 from being screwed out of the locking plate mounting groove 25 upwards through the axial limiting protrusions 2531, so that components in the locking plate mounting groove 25 can fall out of the groove.
The axial rebound member 251 is preferably a compression spring, and specifically, a spring groove adapted to the axial rebound member 251 is formed at the bottom of the lock plate mounting groove 25; the upper end of the axial locking member 252 corresponding to the thread section is provided with a screwing step 2521. The limiting post 253 is in threaded connection with the bottom of the locking plate mounting groove 25. Therefore, the parts in the lock piece mounting groove 25, particularly the lock piece 22, can be removed and replaced, has the advantage of low maintenance cost, and can improve the service life of the jig.
Example 2
An arc spring threading clamp according to embodiment 1 is characterized in that the arc rod 1 needs to rotate through the locking member 2 with a unidirectional locking function during use, and the arc rod 1 or the rotating rod 11 connected with the arc rod 1 is easy to displace or deform during use, so that the arc rod cannot penetrate into the through hole of the locking member 2 during rotation, thus resulting in a short service life of the clamp, and an urgent need for improvement is felt.
Referring to fig. 3 to 8, in this embodiment, on the basis of the arc spring threading clamp described in embodiment 1, a positioning member 3 is further provided in a rotating manner, the positioning member 3 coincides with the rotation center of the rotating rod 11, the positioning member 3 includes a positioning head 31, a positioning hole 32 is provided on the positioning head 31, and the rotating rod 11 rotates between the locking member 2 and the positioning head 31;
a rotation limiting structure is arranged between the positioning piece 3 and the locking piece 2 and is used for positioning an initial included angle between the positioning piece 3 and the locking piece 2; the initial angle, i.e. the angle that limits the rotation of the positioning member 3 relative to the locking member 2 in the direction a in the opposite direction.
In this embodiment, when the positioning member 3 and the locking member 2 are at an initial angle, and the rotating rod 11 is disposed on the side near the locking member 2, one end of the arc-shaped rod 1, which is far away from the rotating rod 11, is disposed in the positioning hole 32.
The application method of the arc spring penetrating clamp comprises the following steps:
step S1: the initial state is reset, when the positioning piece 3 and the locking piece 2 are positioned at an initial included angle, the rotating rod 11 is arranged at one side close to the locking piece 2;
step S2: when the rotating rod 11 rotates towards the direction A, the arc-shaped rod 1 extends out of the positioning hole 32, and the extending arc-shaped rod 1 penetrates into an inner hole of the spring to be clamped;
step S3: one-way locking is realized by that one end of the arc-shaped rod 1 far away from the rotating rod 11 passes through the spring to enter the through hole 21 and is matched with the limit groove 121 through the locking plate 22; at this time, the spring is on the arc-shaped rod 1 and between the rotating rod 11 and the locking member 2;
step S4: and the rotating rod 11 continues to rotate towards the direction A and pushes the positioning piece 3 to rotate, the positioning head 31 extrudes the spring, and the spring is compressed to a preset radian, so that the clamping of the spring is completed. The spring after clamping can integrally enter a heat treatment process to realize shaping.
In this embodiment, the setting element 3 is located through locating hole 32 with arc pole 1, make arc pole 1 is realized spacing by two positions of dwang 11 and locating hole 32 all the time, prevents that arc pole 1 from being out of shape because 11 one end is spacing easily to produce, leads to arc pole 1 along the front end of A direction pivoted be difficult to get into in the perforation 21, consequently can promote the life of anchor clamps. The end surface of the positioning head 31 on the side away from the rotating lever 11 in the a direction serves to press the spring in the circumferential direction. Further, due to the cooperation of the locking piece 22 and the limiting groove 121, the rotating lever 11 does not reversely rotate in the a direction due to the elastic force of the spring when the positioning head 31 and the locking piece 2 press the spring mounted on the arc lever 1, thereby realizing the locking of the spring sleeved on the arc lever 1. Has the advantage of convenient operation.
Referring to fig. 6 and 8, in this embodiment, the positioning member 3 includes a first connecting rod 33, one end of the first connecting rod 33 is connected to the positioning head 31, a hinge plate 331 is disposed on the first connecting rod 33, and the hinge plate 331 is rotatably disposed on the rotating shaft 14. In this embodiment, the first connecting rods 33 are disposed in pairs on both sides of the rotating rod 11.
The hinge plate 331 is provided with a circumferential limit protrusion 332 extending toward one side of the second connecting rod 23, when the positioning member 3 rotates to an initial included angle relative to the locking member 2, the circumferential limit protrusion 332 is attached to the second connecting rod 23 to limit the position, and the circumferential limit protrusion 332 and the second connecting rod 23 form the rotation limit structure. In this embodiment, the rotating rod 11, the locking member 2 and the positioning member 3 are integrally arranged on the rotating shaft 14, and no fixing frame is arranged, so that the arc-shaped spring sleeve-penetrating type clamp in this embodiment has the advantages of small occupied space and light overall weight, and is convenient to install the spring on the clamp, and the clamp is integrally installed on the press machine for pressurizing operation. Specifically, the first connecting rod 33 is disposed outside the second connecting rod 23.
As shown in fig. 5, in this embodiment, the device further includes a rotary resilient member 4, where the rotary resilient member 4 is disposed on the hinge plate 331, and the rotary resilient member 4 is used to reset the positioning member 3 to form an initial included angle with the locking member 2.
The rotating rebound piece 4 can realize quick resetting of the positioning piece 3 and the locking piece 2, and the resetting efficiency is improved. It should be noted that, in this embodiment, the rotary resilient member 4 and the axial resilient member 251 are high-temperature alloy springs, such as alloy springs made of GH4145, which effectively use a temperature higher than the heat treatment temperature of the arc springs. In this embodiment, the rotating resilient member 4 is a torsion spring, and a pair of presser feet of the torsion spring are respectively in abutting connection with the positioning member 3 and the locking member 2, specifically, the rotating resilient member 4 is disposed between the hinge plate 331 and one end of the second connecting rod 23 near the rotating shaft 14.
After step S4 is completed, when the spring clamped on the arc rod 1 is removed, the axial locking member 252 is screwed up to a position where the locking plate 22 is separated from the limiting groove 121, at this time, due to the effect of the rotating rebound member 4, the positioning member 3 is rotated and reset to form an initial included angle with the locking member 2, in this process, the rotating rod 11 is pushed by the positioning member 3 to follow rotation, and when the rotating rod 11 is reversely rotated to a reset state along the a direction, the spring sleeved on the arc rod 1 is separated from the arc rod 1 due to the limit of the positioning head 31, and automatically falls out of the clamp. The spring has the advantages of high resetting efficiency and capability of being quickly disassembled.
In this embodiment, as shown in fig. 7, a first receiving cavity 24 is disposed at one end of the front side of the locking member 2 corresponding to the direction a, and the first receiving cavity 24 is configured to receive the rotating rod 11 in the reset state. Further guarantee the accuracy of arc pole 1 location prevents the pivoted lever 11 takes place axial displacement or deformation, leads to arc pole 1 takes place to interfere in the rotation in-process, has further promoted the life of anchor clamps.
In this embodiment, as shown in fig. 4, the arc-shaped rod 1 extends out of the side surface of the rotating rod 11 in the direction a in a reverse direction to form a positioning section 15, and when the rotating rod 11 is received in the first receiving cavity 24, the positioning section 15 enters the through hole 21. The positioning of the arc-shaped rod 1 near the rotating rod 11 at one end in the reset state can be realized through the matching of the positioning section 15 and the perforation 21, the two ends of the arc-shaped rod 1 are simultaneously positioned by the perforation 21 and the positioning hole 32 in the reset state, the arc-shaped rod 1 can be further prevented from being displaced or deformed, the arc-shaped rod 1 is interfered in the rotating process, and the service life of the clamp is further prolonged.
In this embodiment, when the rotating rod 11 enters the first accommodating cavity 24, the locking plate 22 is matched with one of the limiting grooves 121. Can produce the locking force to the arc pole 1 in the state of resetting, prevent when moving the anchor clamps that dwang 11 shifts out first receiving chamber 24.
In this embodiment, as shown in fig. 6, a second receiving cavity 34 is disposed at one end of the positioning head 31 at the rear side corresponding to the direction a, and the second receiving cavity 34 acts the same as the first receiving cavity 24 and is used for receiving the rotating rod 11 rotated to a state in contact with the positioning head 31, so as to position the rotating rod 11.
Example 3
In the process of producing the arc-shaped spring, the spring needs to be pressurized and shaped twice, the initial shaping of the spring needs to be realized before the heat treatment of the spring for the first time so as to ensure that the radius and radian corresponding to the arc-shaped spring meet the process requirements, and the spring needs to be subjected to setting treatment after the heat treatment is finished for the second time so that the arc length of the arc-shaped spring meets the final requirements. In the existing arc spring production process, two sets of pressurizing systems are often adopted when the springs are subjected to heat treatment and standing treatment, two sets of clamps correspond to the two sets of pressurizing systems, namely, the springs are arranged on one set of clamps before heat treatment and are shaped through the pressurizing systems corresponding to the clamps. After the heat treatment is completed, the spring needs to be taken out, and after the spring is installed on the other set of clamps, the setting treatment is realized through a pressurizing system corresponding to the other set of clamps. Therefore, the existing press cannot be compatible with the twice pressing and shaping process of spring molding at the same time, thereby influencing the production efficiency and the production cost.
Referring to fig. 9 to 11, the present embodiment provides an arc spring press, including an arc spring threading jig as described in embodiment 1 or 2; the machine frame further comprises a machine frame body 5, the machine frame body 5 comprises a pair of vertical plates 51, the vertical plates 51 are provided with rotating shaft mounting grooves 511, the rotating shaft mounting grooves 511 extend out of the side walls of the vertical plates 51 in the same direction to form openings, and the extending direction of the rotating shaft mounting grooves 511 is integrally upward. The radial dimensions of the shaft mounting groove 511 are respectively adapted to the pair of annular clamping grooves 142.
Specifically, in this embodiment, the extending direction of the shaft mounting groove 511 and the horizontal direction form an included angle of 45 °, and after the annular clamping groove 142 enters the shaft mounting groove 511, the annular clamping groove can completely enter the shaft mounting groove 511 by self gravity, so as to realize radial positioning of the rotating shaft 14.
A limiting block 52 is fixedly arranged on the inner side of the vertical plate 51, and the limiting block 52 is used for limiting the rotation angle of the second connecting rod 23 towards the direction A.
The locking piece 53 is arranged on one side of the limiting block 52, and the locking piece 53 is used for being matched with the limiting block 52 to limit the second connecting rod 23 between the locking piece 53 and the limiting block 52, so that circumferential positioning of the locking piece 2 is achieved.
The driving device 6 comprises a transmission rack 61 and a driving cylinder 62, the driving cylinder 62 is in transmission connection with the transmission rack 61, the transmission rack 61 is arranged on the vertical plate 51 near one side of the transmission gear 141, the transmission rack 61 is arranged on one side of the transmission gear 141 far away from the extending direction of the rotating shaft mounting groove 511, and the moving direction of the transmission rack 61 is perpendicular to the extending direction of the rotating shaft mounting groove 511. The driving cylinder 62 is used for driving the transmission rack 61 to move, so that the rotating shaft 14 is driven to rotate in the rotating shaft mounting groove 511.
When the clamp described in embodiment 1 or 2 is mounted on the frame body 5, after the annular clamping groove 142 completely enters the rotating shaft mounting groove 511, the locking member 2 is rotated along the direction a until the second connecting rod 23 is attached to the limiting block 52, and then the locking member 53 is moved to the locking member 53 and the limiting block 52 to position the two circumferential sides of the second connecting rod 23, so that the whole clamp is positioned, and at this time, the whole clamp cannot move radially. After the annular clamping groove 142 completely enters the rotating shaft mounting groove 511, the transmission gear 141 is in meshed connection with the transmission rack 61. Therefore, efficient installation of the jig can be achieved.
The circumferential position of the second connecting rod 23 is positioned corresponding to the locking member 53 and the limiting block 52, and the included angle with the extending direction of the shaft mounting groove 511 is a value interval (0 °,180 °). Because, when the included angle is 0 ° or 180 °, the whole jig can be moved in the extending direction of the shaft mounting groove 511, and the jig is not completely locked to the housing body 5. In this embodiment, the included angle between the two is 135 °.
Referring to fig. 11, in this embodiment, the locking member 53 includes a pair of sliding rods 531, the pair of sliding rods 531 is disposed on the riser 51 in a penetrating manner, one end of the pair of sliding rods 531 corresponding to the outer side of the riser 51 is provided with a sliding limit protrusion 532, and when the sliding limit protrusion 532 is attached to the outer side of the riser 51, the locking member 53 moves to a limit stroke position, and limiting of the second connecting rod 23 on the side far from the limit block 52 is achieved by the pair of sliding rods 531.
In this embodiment, a pair of slide rods 531 is provided with a limit rod 533 at one end far away from the sliding limit protrusion 532, the limit rod 533 is disposed inside the riser 51, and when the locking member 53 moves to the position where the limit rod 533 is attached to the inner side wall of the riser 51, the locking member 53 integrally moves to the outer side of the second connecting rod 23, and at this time, the locking member 2 may rotate in a direction far away from the limit block 52.
Further, a rotation limiting protrusion 54 is further disposed on the inner side of the vertical plate 51, and the rotation limiting protrusion 54 is used for limiting the rotation position of the rotation rod 11 in the direction a. When the clamp described in embodiment 1 is used, the rotation limiting protrusion 54 is attached to the rotation lever 11 to limit the rotation of the rotation lever 11. When the clamp of embodiment 2 is used, the rotation limiting protrusion 54 is attached to the first connecting rod 33 to limit the rotation of the rotating rod 11. When the clamp described in embodiment 1 is used, the member corresponding to the rotation limiting protrusion 54 needs to be moved to the outside of the second connecting rod 23 before being mounted, and the member corresponding to the rotation limiting protrusion 54 can be moved to a position capable of limiting the rotation lever 11 after the whole clamp is positioned on the frame body 5. In the case of the clamp according to embodiment 2, the first connecting rod 33 is disposed outside the second connecting rod 23, so that the rotation limiting protrusion 54 is integrally disposed outside the second connecting rod 23, and the rotation limiting protrusion 54 does not contact with the second connecting rod 23 during the positioning process of rotating the second connecting rod 23 when the clamp is mounted on the frame body 5, so that the clamp according to embodiment 2 is convenient to mount. In this embodiment, the corresponding component of the rotation limiting protrusion 54 is a screw penetrating the riser 51.
The working method of the arc spring press machine of the embodiment comprises two steps, namely, compressing an arc spring to a preset radian to enter a heat treatment process, namely, locking in the step S4 corresponding to the embodiment 2; the other is to set the arc spring after the heat treatment.
The method for compressing the arc spring to the preset radian comprises the following steps:
a. the spring is sleeved on the arc-shaped rod 1, the rotating rod 11 is rotated along the direction A, the front end of the arc-shaped rod 1 passes through the through hole 21, and the locking plate 22 is contacted with the limit groove 121 in a matching way, so that the one-way locking is realized;
b. the mounting fixture is mounted on the frame body 5, the pair of annular clamping grooves 142 enter the rotating shaft mounting groove 511, the transmission gear 141 is meshed with the transmission rack 61, the second connecting rod 23 is attached to the limiting block 52, and the locking piece 53 is moved until the second connecting rod 23 is limited between the locking piece 53 and the limiting block 52; in this step, the driving cylinder 62 is in a disabled state, that is, the driving rack 61 is free to move, and when the second connecting rod 23 rotates to be in contact with the stopper 52, the second connecting rod cannot rotate due to the limitation of the driving rack 61.
c. The compression is carried out, the driving cylinder 62 is started, and the rotating shaft 14, the rotating rod 11 and the arc-shaped rod 1 are driven to rotate to a preset position along the direction A through the transmission rack 61; specifically, the rotational position of the rotational lever 11 or the first connecting lever 33 is restricted by the rotational restricting protrusion 54 to achieve the rotation to the preset position.
d. And (5) taking down the clamp, and taking down the whole clamp from the frame body 5. At this time, due to the cooperation of the locking plate 22 and the limiting groove 121, the arc spring is still compressed to a preset radian on the clamp by means of the self-locking function of the clamp. So that the whole goes into the heat treatment process.
The working method for setting the arc-shaped spring comprises the following steps:
A. the mounting fixture is used for mounting the fixture provided with the arc-shaped spring on the frame body 5, a pair of annular clamping grooves 142 enter the rotating shaft mounting groove 511, the transmission gear 141 is meshed with the transmission rack 61, the second connecting rod 23 is attached to the limiting block 52, and the locking piece 53 is moved until the second connecting rod 23 is limited between the locking piece 53 and the limiting block 52;
B. unlocking, starting a locking loop of the driving cylinder 62, and screwing the axial locking piece 252 until the locking piece 22 is lifted to be separated from the limiting groove 121; the driving cylinder 62 makes the driving rack 61 not to be displaced by external force through the locking loop, so that the rotation rod 11 does not rotate due to the action of the spring when the locking plate 22 is lifted to be separated from the limiting groove 121.
C. Setting operation, namely starting a driving cylinder 62 to drive the transmission rack 61 to reciprocate for preset times, compressing and releasing the arc-shaped spring for preset times until setting operation is completed;
D. the spring is taken down, the rotating rod 11 is reversely rotated along the direction A, and the arc-shaped spring sleeved on the arc-shaped rod 1 is taken down. This step may control the return of the drive cylinder 62 to the failure of the drive cylinder 62, at which time the rotary lever 11 may be manually rotated. The rotary rod 11 may be directly driven to rotate by the driving cylinder 62. Of course, the clamp can be detached first and then the spring can be removed.
Therefore, the arc spring press machine can realize twice pressurization shaping operation before and after heat treatment, and the spring is not required to be detached from the clamp between the twice pressurization shaping operation, so that the production efficiency can be improved, and the production cost can be reduced.
The technical principles of the present application have been described above in connection with specific embodiments, which are provided for the purpose of explaining the principles of the present application and are not to be construed as limiting the scope of the present application in any way. Other embodiments of the application will be apparent to those skilled in the art from consideration of this specification without undue burden.
Claims (6)
1. An arcuate spring press comprising:
the clamp comprises an arc-shaped rod (1), wherein one end of the arc-shaped rod (1) is provided with a rotating rod (11), the rotating center of the rotating rod (11) is fixedly provided with a rotating shaft (14), and the side surfaces of the two ends of the rotating shaft (14) are provided with annular clamping grooves (142);
the clamp also comprises a locking piece (2), wherein the locking piece (2) is provided with a through hole (21) which is matched with the section of the arc-shaped rod (1); the arc-shaped rod (1) can pass through the perforation (21) in the process that the rotating rod (11) drives the arc-shaped rod (1) to rotate towards the direction A; the locking piece (2) is provided with a locking piece (22) for limiting the reverse rotation of the arc-shaped rod (1) penetrating through the perforation (21) towards the direction A; the locking piece (2) is provided with a second connecting rod (23), and the second connecting rod (23) is rotatably arranged on the rotating shaft (14);
the machine frame further comprises a machine frame body (5), the machine frame body (5) comprises a pair of vertical plates (51), the vertical plates (51) are provided with rotating shaft mounting grooves (511), the rotating shaft mounting grooves (511) extend out of the side walls of the vertical plates (51) in the same direction to form openings, and the radial dimension of the rotating shaft mounting grooves (511) is matched with that of the annular clamping grooves (142); the inner side of the vertical plate (51) is fixedly provided with a limiting block (52), the vertical plate further comprises a locking piece (53) which is movably arranged, and the locking piece (53) is used for being matched with the limiting block (52) to limit the second connecting rod (23) between the locking piece (53) and the limiting block (52);
the device also comprises a driving device (6), wherein the driving device (6) is used for driving the rotating shaft (14) to rotate;
a group of limiting grooves (121) are formed in one side of the arc-shaped rod (1), the locking plate (22) is obliquely arranged on the locking piece (2), and the front end of the locking plate (22) extends out of one end of the locking piece (2) corresponding to the front side in the A direction; the locking plate (22) is contacted with the limit groove (121) in a matching way and is used for limiting the arc-shaped rod (1) to reversely rotate towards the direction A;
corresponding to the locking piece (22), a locking piece mounting groove (25) is formed in the locking piece (2), and the locking piece (22) is arranged in the locking piece mounting groove (25);
an axial rebound piece (251) is arranged in the locking piece mounting groove (25), and the axial rebound piece (251) is arranged at the bottom of the locking piece (22);
an axial locking piece (252) is arranged on the locking piece mounting groove (25), the axial locking piece (252) is in threaded connection with the side wall of the locking piece mounting groove (25), and the axial locking piece (252) is arranged at the upper end of the locking piece (22);
still include spacing post (253), spacing post (253) runs through locking plate (22), axial rebound piece (251) and axial retaining piece (252), spacing post (253) are connected with locking plate mounting groove (25) bottom, spacing post (253) is kept away from locking plate mounting groove (25) one end and is equipped with axial spacing convex part (2531).
2. An arcuate spring press as set forth in claim 1 wherein: the extending direction of the rotating shaft mounting groove (511) is integrally upward.
3. An arcuate spring press as set forth in claim 2 wherein: the utility model discloses a motor drive device, including pivot (14), axis of rotation (14), drive arrangement (6) are equipped with drive gear (141), drive gear (61) are including drive rack (61), drive rack (61) set up on riser (51) of nearly drive gear (141) one side, drive rack (61) set up in drive gear (141) one side of keeping away from the extending direction of pivot mounting groove (511), the direction of movement of drive rack (61) is mutually perpendicular with the extending direction of pivot mounting groove (511).
4. An arcuate spring press as set forth in claim 1 wherein: the locking piece (53) comprises a pair of sliding rods (531), the pair of sliding rods (531) are arranged on the vertical plate (51) in a penetrating mode, sliding limit protruding portions (532) are arranged at one ends, corresponding to the outer sides of the vertical plate (51), of the sliding rods (531), and when the sliding limit protruding portions (532) are attached to the outer side faces of the vertical plate (51), the locking piece (53) moves to a limit stroke position.
5. An arcuate spring press as set forth in claim 4 wherein: one end, far away from the sliding limit protruding part (532), of the sliding rod (531) is provided with a limit rod (533), the limit rod (533) is arranged on the inner side of the vertical plate (51), and when the locking piece (53) moves to the position where the limit rod (533) is attached to the inner side wall of the vertical plate (51), the locking piece (53) integrally moves to the outer side of the second connecting rod (23).
6. An arcuate spring press as set forth in claim 1 wherein: the inner side of the vertical plate (51) is also provided with a rotation limiting convex part (54), and the rotation limiting convex part (54) is used for limiting the rotation position of the rotating rod (11) towards the direction A.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311197175.1A CN116921591B (en) | 2023-09-18 | 2023-09-18 | Arc spring press |
| CN202311620187.0A CN117324517B (en) | 2023-09-18 | 2023-09-18 | Arc spring clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311197175.1A CN116921591B (en) | 2023-09-18 | 2023-09-18 | Arc spring press |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311620187.0A Division CN117324517B (en) | 2023-09-18 | 2023-09-18 | Arc spring clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116921591A CN116921591A (en) | 2023-10-24 |
| CN116921591B true CN116921591B (en) | 2023-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311620187.0A Active CN117324517B (en) | 2023-09-18 | 2023-09-18 | Arc spring clamp |
| CN202311197175.1A Active CN116921591B (en) | 2023-09-18 | 2023-09-18 | Arc spring press |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311620187.0A Active CN117324517B (en) | 2023-09-18 | 2023-09-18 | Arc spring clamp |
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| CN (2) | CN117324517B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117324517B (en) * | 2023-09-18 | 2024-08-16 | 毕克礼斯精密部件（太仓）有限公司 | Arc spring clamp |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6132533A (en) * | 1995-09-22 | 2000-10-17 | Ateliers Metallurgiques De Saint Urbain (Amsu) | Method for making arcuate coil springs, resulting springs and devices for carrying out the method |
| CN101092014A (en) * | 2007-05-16 | 2007-12-26 | 邵承玉 | Technique for fabricating arched spring in use for hydraulic torque converter of car, and dedicated equipment |
| CN202555729U (en) * | 2012-04-13 | 2012-11-28 | 杭州富春弹簧有限公司 | Forming tool clamp of arc-shaped spring |
| CN105773480A (en) * | 2016-04-29 | 2016-07-20 | 天津市友滨弹簧有限公司 | High-precision sizing clamp for arc spring |
| CN109909406A (en) * | 2019-04-19 | 2019-06-21 | 无锡威孚精密机械制造有限责任公司 | A kind of arc spring heat setting machine |
| CN216065348U (en) * | 2021-11-01 | 2022-03-18 | 合肥骏和弹簧加工有限公司 | Spiral spring vertical fixing and fastening device |
| CN115315323A (en) * | 2020-03-25 | 2022-11-08 | 日本发条株式会社 | Method and device for manufacturing arc spring |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000129359A (en) * | 1998-10-19 | 2000-05-09 | Suncall Corp | Manufacture of arc-like spring for clutch disk |
| JP5014660B2 (en) * | 2006-03-31 | 2012-08-29 | 村田発條株式会社 | Manufacturing method of arc coil spring |
| CN204471240U (en) * | 2015-01-22 | 2015-07-15 | 宁波名力弹簧有限公司 | A kind of arc spring fixture of improvement |
| CN210115417U (en) * | 2019-04-19 | 2020-02-28 | 无锡威孚精密机械制造有限责任公司 | Arc spring heat setting machine |
| CN215144244U (en) * | 2021-05-27 | 2021-12-14 | 诸暨市金科弹簧科技有限公司 | Spring winding machine suitable for winding of elevator spring |
| CN117324517B (en) * | 2023-09-18 | 2024-08-16 | 毕克礼斯精密部件（太仓）有限公司 | Arc spring clamp |
| CN116921590B (en) * | 2023-09-18 | 2023-12-01 | 毕克礼斯精密部件（太仓）有限公司 | Arc spring threading type clamp |
-
2023
- 2023-09-18 CN CN202311620187.0A patent/CN117324517B/en active Active
- 2023-09-18 CN CN202311197175.1A patent/CN116921591B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6132533A (en) * | 1995-09-22 | 2000-10-17 | Ateliers Metallurgiques De Saint Urbain (Amsu) | Method for making arcuate coil springs, resulting springs and devices for carrying out the method |
| CN101092014A (en) * | 2007-05-16 | 2007-12-26 | 邵承玉 | Technique for fabricating arched spring in use for hydraulic torque converter of car, and dedicated equipment |
| CN202555729U (en) * | 2012-04-13 | 2012-11-28 | 杭州富春弹簧有限公司 | Forming tool clamp of arc-shaped spring |
| CN105773480A (en) * | 2016-04-29 | 2016-07-20 | 天津市友滨弹簧有限公司 | High-precision sizing clamp for arc spring |
| CN109909406A (en) * | 2019-04-19 | 2019-06-21 | 无锡威孚精密机械制造有限责任公司 | A kind of arc spring heat setting machine |
| CN115315323A (en) * | 2020-03-25 | 2022-11-08 | 日本发条株式会社 | Method and device for manufacturing arc spring |
| CN216065348U (en) * | 2021-11-01 | 2022-03-18 | 合肥骏和弹簧加工有限公司 | Spiral spring vertical fixing and fastening device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117324517A (en) | 2024-01-02 |
| CN117324517B (en) | 2024-08-16 |
| CN116921591A (en) | 2023-10-24 |
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