CN116921590B - Arc spring threading type clamp - Google Patents
Arc spring threading type clamp Download PDFInfo
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- CN116921590B CN116921590B CN202311197118.3A CN202311197118A CN116921590B CN 116921590 B CN116921590 B CN 116921590B CN 202311197118 A CN202311197118 A CN 202311197118A CN 116921590 B CN116921590 B CN 116921590B
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- 238000000034 method Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000000149 penetrating effect Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 20
- 238000010438 heat treatment Methods 0.000 description 13
- 230000008901 benefit Effects 0.000 description 11
- 238000007493 shaping process Methods 0.000 description 11
- 238000001125 extrusion Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 229910000967 As alloy Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012423 maintenance Methods 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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- Clamps And Clips (AREA)
Abstract
The application relates to the technical field of arc spring manufacturing, in particular to an arc spring penetrating clamp which is used for clamping springs and comprises an arc rod, wherein the section of the arc rod is matched with the radial size of an inner hole of a spring to be clamped, one end of the arc rod is provided with a rotating rod, and the rotating center of the rotating rod is coincident with the circle center of the arc rod; 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, and one side of the arc-shaped rod is provided with a group of limiting grooves corresponding to the locking plate; the positioning piece is rotatably arranged and is coincident with the rotation center of the rotating rod, the positioning piece comprises a positioning head, a positioning hole is formed in the positioning head, and the rotating rod rotates between the locking piece and the positioning head; and a rotation limiting structure is arranged between the positioning piece and the locking piece and used for positioning an initial included angle between the positioning piece and the locking piece. The service life of the clamp can be prolonged.
Description
Technical Field
The application relates to the technical field of arc spring manufacturing, in particular to an arc spring sleeve-penetrating type clamp.
Background
The arc spring is commonly used for a dual-mass flywheel of a transmission system of an internal combustion engine, and in the forming process of the arc spring, a clamp is required to be used for shaping a semi-finished spring, so that the corresponding radian and radius of the semi-finished spring reach the design requirement of the arc spring. The semi-finished spring is typically a straight spring or a preformed arcuate spring of larger radius. 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.
In order to ensure the uniformity of the shape of the inner cavity of the arc-shaped spring, the applicant proposes to use a clamp with an arc-shaped rod 1 as shown in fig. 1, and to pass through the inner cavity of the spring through the arc-shaped rod 1, so as to achieve the functions of shaping and ensuring the uniformity of the inner cavity of the spring. However, during use, the arc rod 1 needs to rotate through the locking member 2 with the unidirectional locking function, and during use, the arc rod 1 or the rotating rod 11 connected with the arc rod 1 is easy to displace or deform, so that the arc rod cannot penetrate into the through hole of the locking member 2 during rotation, and therefore, the service life of the clamp is not long, and improvement is needed.
Disclosure of Invention
In order to overcome the defects in the prior art, the application provides the arc spring sleeve-penetrating type clamp which can prolong the service life of the clamp.
In order to achieve the above object, the present application is realized by the following technical scheme:
an arc spring penetrating clamp is used for clamping a spring and comprises an arc rod, wherein the section of the arc rod is matched with the radial size of an inner hole of the spring to be clamped, one end of the arc rod is provided with a rotating rod, and the rotating center of the rotating rod is coincident with the circle center of the arc rod;
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 through hole in the process of rotating around the rotating center of the rotating rod, the locking piece is provided with a locking plate, and one side of the arc-shaped rod is provided with a group of limiting grooves corresponding to the locking plate; 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;
the positioning piece is rotatably arranged and is coincident with the rotation center of the rotating rod, the positioning piece comprises a positioning head, a positioning hole is formed in the positioning head, and the rotating rod rotates between the locking piece and the positioning head;
a rotation limiting structure is arranged between the positioning piece and the locking piece and used for positioning an initial included angle between the positioning piece and the locking piece; the initial included angle is the included angle which limits the rotation of the positioning piece relative to the locking piece along the direction A in the reverse direction.
When the initial included angle is formed between the locating piece and the locking piece, the rotating rod is arranged on one side close to the locking piece, and one end, far away from the rotating rod, of the arc-shaped rod is arranged in the locating hole.
The application method of the arc spring penetrating clamp comprises the following steps:
step S1: resetting in an initial state, wherein when an initial included angle is formed between the positioning piece and the locking piece, the rotating rod is arranged at one side close to the locking piece;
step S2: the spring is installed, when the rotating rod rotates towards the direction A, the arc-shaped rod extends out of the positioning hole, and the extending arc-shaped rod penetrates into an inner hole of the spring to be clamped;
step S3: one-way locking is realized by enabling one end of the arc-shaped rod, which is far away from the rotating rod, to penetrate through the spring and enter the through hole and matching the locking plate with the limit groove; at this time, the spring is on the arc-shaped rod and between the rotating rod and the locking piece;
step S4: and the rotating rod continuously rotates towards the direction A and pushes the positioning piece to rotate, the spring is extruded by the positioning head, 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.
According to the arc spring threading clamp, the arc rod is threaded into the inner hole of the spring, so that the limit of the spring is realized, the spring is molded into an arc with a preset radius, and compared with a traditional molding mode of adopting an outer side extrusion spring, the arc spring threading clamp can prevent the spring from 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 in which the inner hole is required to be threaded. According to the application, the positioning piece is used for positioning the arc-shaped rod through the positioning hole, so that the arc-shaped rod is always limited by the rotating rod and the positioning hole, and the problem that the front end of the arc-shaped rod rotating along the direction A is difficult to enter the perforation because one end of the rotating rod is limited and is easy to deform is avoided, so that the service life of the clamp can be prolonged. The end face of the positioning head, which is far away from the rotating rod side in the A direction, is used for pressing the spring in the circumferential direction. In addition, due to the cooperation of the locking plate and the limiting groove, when the positioning head and the locking piece extrude the spring arranged on the arc-shaped rod, the rotating rod cannot reversely rotate along the direction A due to the elastic force of the spring, so that the spring sleeved on the arc-shaped rod is locked. Has the advantage of convenient operation.
Further, according to the arc spring sleeve-penetrating type clamp disclosed by the application, the arc rod is provided with the first end face, and the limiting groove is formed in the first end face. As the preferable scheme of the application, the first end face is arranged, and the limit groove is processed on the plane, so that the difficulty in processing the limit groove can be reduced, and the processing cost can be reduced.
Further, according to the arc spring sleeve-penetrating clamp disclosed by the application, one end, far away from the first end face, of the arc rod is provided with the second end face. As the preferable scheme of the application, the section of the arc-shaped rod is in a runway shape, and the distance between a pair of arc-shaped ends of the runway-shaped section is matched with the inner diameter size of the spring, so that the arc-shaped rod is in a circular state relative to the section, has the advantage of easy processing, and can save the processing cost.
Furthermore, the arc spring sleeve-penetrating clamp is provided with a rotating shaft corresponding to the rotating center of the rotating rod, and the locking piece and the positioning piece are arranged on the rotating shaft.
Furthermore, the positioning piece comprises a first connecting rod, one end of the first connecting rod is connected with the positioning head, a hinge plate is arranged on the first connecting rod, and the hinge plate is rotatably arranged on the rotating shaft.
Further, according to the arc spring sleeve-penetrating clamp disclosed by the application, the second connecting rod is arranged on the locking piece, the second connecting rod is arranged on the rotating shaft, the circumferential limit protruding part extending towards one side of the second connecting rod is arranged on the hinging disc, when the positioning piece rotates to an initial included angle relative to the locking piece, the circumferential limit protruding part is attached to the second connecting rod for limiting, and the circumferential limit protruding part and the second connecting rod form the rotation limiting structure. As the preferable scheme of the application, the rotating rod, the locking piece and the positioning piece are integrally arranged on the rotating shaft, and the fixing frame body is not arranged, so that the arc-shaped spring sleeve-penetrating type clamp has the advantages of small occupied space and light overall weight, and the clamp is conveniently and integrally arranged on a press machine for pressing operation after the spring is arranged on the clamp.
Further, the arc spring sleeve-penetrating clamp further comprises a rotary rebound piece, wherein the rotary rebound piece is arranged on the hinging disc and is used for resetting the positioning piece to form an initial included angle with the locking piece. As the preferable scheme of the application, the rotary rebound member can realize the quick reset of the positioning member and the locking member, and the reset efficiency is improved. It should be noted that the rotary resilient member and the axial resilient member in the present application are high temperature alloy springs, such as alloy springs made of GH4145, which are effectively used at a temperature higher than the heat treatment temperature of the arc spring.
Furthermore, according to the arc spring sleeve-penetrating clamp disclosed by the application, one end of the locking piece, which corresponds to the front side in the A direction, is provided with the first accommodating cavity, and the first accommodating cavity is used for accommodating the rotating rod in the reset state. As the preferable scheme of the application, the positioning accuracy of the arc-shaped rod is further ensured, the arc-shaped rod is prevented from being axially displaced or deformed, the arc-shaped rod is prevented from being interfered in the rotating process, and the service life of the clamp is further prolonged.
Furthermore, the arc spring sleeve-penetrating clamp is characterized in that the locking piece is obliquely arranged on the locking piece, and the front end of the locking piece extends out of one end of the locking piece corresponding to the front side of the direction A.
Further, the arc spring sleeve-penetrating clamp disclosed by the application corresponds to the locking piece, a locking piece mounting groove is formed in 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;
still include spacing post, spacing post runs through locking plate, axial rebound piece and axial retaining piece, spacing post is connected with locking plate mounting groove bottom, spacing post is kept away from locking plate mounting groove one end and is equipped with the spacing convex part of axial.
The axial locking piece is used for pushing down the locking plate for the locking plate front end can cooperate with the spacing groove, works as when the axial locking piece is to keeping away from the locking plate direction and revolve and twist, the axial rebound piece is used for with the locking plate jack-up, makes the locking plate break away from with spacing groove complex position, can reverse rotation arc pole this moment, makes the arc pole reset. 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.
Based on the device, after step S4 is completed, when the spring clamped on the arc-shaped rod is taken down, the axial locking piece is screwed up to the position where the locking piece breaks away from the limiting groove, at this time, due to the action of the rotating rebound piece, the positioning piece can rotate and reset to form an initial included angle with the locking piece, in the process, the rotating rod can be pushed by the positioning piece to follow the rotation, and when the rotating rod reversely rotates to a reset state along the A direction, the spring sleeved on the arc-shaped rod can be separated from the arc-shaped rod due to the limiting of the positioning head, and the clamp can automatically fall out. The spring has the advantages of high resetting efficiency and capability of being quickly disassembled.
The technical scheme can be seen that the application has the following beneficial effects:
1. the application provides an arc spring threading clamp, which is characterized in that an arc rod is threaded into an inner hole of a spring to limit the spring, so that the spring is molded into an arc with a preset radius.
2. The application provides an arc spring sleeve-penetrating type clamp, wherein a positioning piece is used for positioning an arc rod through a positioning hole, so that the arc rod is always limited by two positions of a rotating rod and the positioning hole, and the arc rod is prevented from being deformed easily due to the limitation of one end of the rotating rod, and the front end of the arc rod rotating along the direction A is difficult to enter a through hole, so that the service life of the clamp can be prolonged.
3. The application provides an arc spring threading clamp, which is characterized in that a locking plate is matched with a limiting groove, so that a rotating rod cannot reversely rotate along the direction A due to the elasticity of the spring when a positioning head and a locking piece press a spring arranged on an arc rod, and the locking of the spring sleeved on the arc rod is realized. Has the advantage of convenient operation.
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 (8)
1. An arc spring wears sleeve formula anchor clamps for clamping spring, its characterized in that: the spring clamping device comprises an arc-shaped rod (1), wherein the cross section of the arc-shaped rod (1) is matched with the radial size of an inner hole of a spring to be clamped, one end of the arc-shaped rod (1) is provided with a rotating rod (11), and the rotating center of the rotating rod (11) is overlapped with the circle center of the arc-shaped rod (1);
the locking piece (2), 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 plate (22), the locking plate (22) is corresponding to the locking plate (22), and one side of the arc-shaped rod (1) is provided with a group of limiting grooves (121); 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;
the positioning piece (3) is rotatably arranged, the positioning piece (3) coincides with the rotation center of the rotating rod (11), the positioning piece (3) comprises a positioning head (31), a positioning hole (32) is formed in the positioning head (31), and the rotating rod (11) rotates between the locking piece (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);
when the locating piece (3) and the locking piece (2) are positioned at an initial included angle, and the rotating rod (11) is arranged at one side close to the locking piece (2), one end, far away from the rotating rod (11), of the arc-shaped rod (1) is arranged at the locating hole (32);
the locking piece (22) is obliquely arranged on the locking piece (2), and the front end of the locking piece (22) extends out of one end of the locking piece (2) corresponding to the front side in the A direction;
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. The arcuate spring bushing clamp of claim 1, wherein: the arc-shaped rod (1) is provided with a first end face (12), and the limiting groove (121) is formed in the first end face (12).
3. An arcuate spring bushing clamp according to claim 2, wherein: one end of the arc-shaped rod (1) far away from the first end face (12) is provided with a second end face (13).
4. The arcuate spring bushing clamp of claim 1, wherein: a rotating shaft (14) is arranged corresponding to the rotating center of the rotating rod (11), and the locking piece (2) and the positioning piece (3) are arranged on the rotating shaft (14).
5. The arcuate spring bushing clamp of claim 4, wherein: the locating piece (3) comprises a first connecting rod (33), one end of the first connecting rod (33) is connected with the locating head (31), a hinge plate (331) is arranged on the first connecting rod (33), and the hinge plate (331) is rotatably arranged on the rotating shaft (14).
6. The arcuate spring bushing clamp of claim 5, wherein: the locking piece (2) is provided with a second connecting rod (23), the second connecting rod (23) is arranged on the rotating shaft (14), and the hinge plate (331) is provided with a circumferential limit protruding part (332) extending towards one side of the second connecting rod (23);
when the locating piece (3) rotates to an initial included angle relative to the locking piece (2), the circumferential limit protruding portion (332) is attached to the second connecting rod (23) to limit, and the circumferential limit protruding portion (332) and the second connecting rod (23) form the rotation limit structure.
7. The arcuate spring bushing clamp of claim 6, wherein: the device further comprises a rotary rebound piece (4), wherein the rotary rebound piece (4) is arranged on the hinging disc (331), and the rotary rebound piece (4) is used for resetting the positioning piece (3) to form an initial included angle with the locking piece (2).
8. The arcuate spring bushing clamp of claim 1, wherein: a first accommodating cavity (24) is formed in one end, corresponding to the direction A, of the front side of the locking piece (2), and the first accommodating cavity (24) is used for accommodating the rotating rod (11) in a reset state.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311197118.3A CN116921590B (en) | 2023-09-18 | 2023-09-18 | Arc spring threading type clamp |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311197118.3A CN116921590B (en) | 2023-09-18 | 2023-09-18 | Arc spring threading type clamp |
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| CN116921590A CN116921590A (en) | 2023-10-24 |
| CN116921590B true CN116921590B (en) | 2023-12-01 |
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| CN202311197118.3A Active CN116921590B (en) | 2023-09-18 | 2023-09-18 | Arc spring threading type clamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| BR112015000087B1 (en) * | 2012-07-06 | 2022-01-25 | Barnes Group Inc | Bow spring and method of forming a bow spring |
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| 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 |
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| CN116921590A (en) | 2023-10-24 |
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