A spring pitch shaper

Abstract

The application provides a spring pitch shaping device, and relates to the technical field of spring processing.The spring pitch shaping device comprises a base, a lower support assembly is arranged on the base, the lower support assembly is provided with two support cylinders, an angle adjusting assembly is arranged on the base, an upper pressing assembly is arranged on the lower support assembly, horizontal guide rails are symmetrically arranged on the two sides of the lower support assembly, a pitch trimming assembly is arranged on the horizontal guide rails, and a pitch adjusting insert is mounted on the pitch trimming assembly.The angle adjusting assembly adjusts the angle of the lower support assembly, so that the application is suitable for variable-diameter springs and equal-diameter springs, the pitch adjusting insert is inserted into the same pitch of the spring and can be reversely displaced, so that the application is suitable for variable-pitch springs, the support cylinders make the spring to be shaped rotate in the process of trimming the pitch, the contact point between the pitch adjusting insert and the spring changes at all times, and the spring is prevented from being damaged due to the fixed stress point.

Description

Technical Field

[0001] This application relates to the field of spring processing technology, and more specifically, to a spring pitch shaping device. Background Technology

[0002] In the prior art, such as the spring pitch shaping device disclosed in application number 202510466718.8, there is an operating table. The top of the operating table is provided with two support plates. Between the two support plates are a plurality of pitch adjusting wheels for adjusting the pitch of the spring. Between the two support plates is an adjusting device for adjusting the distance between the plurality of pitch adjusting wheels. One end of the support plate is also provided with a power device for driving the adjusting device to reciprocate.

[0003] Through the coordination of structures such as adjustment device, power device, sliding mechanism and swing mechanism, the spacing of several pitch adjustment wheels can be adjusted simultaneously, thereby allowing multiple pitches of a spring to be adjusted at the same time. This ensures the uniformity and consistency of multiple pitches and prevents changes in the dimensions of adjacent pitches.

[0004] However, firstly, this method is only applicable to constant pitch adjustment; it is not suitable for shaping variable pitch springs. Secondly, during adjustment, the pitch adjustment wheel is inserted into the spring, and the spring pitch is adjusted by changing the distance between the pitch adjustment wheels. Because the spring itself has a spiral structure, when the pitch adjustment wheel is inserted into the spring for pitch adjustment, the contact points between the spring and each pitch adjustment wheel are point contacts. As a result, the spring will inevitably experience relatively large forces at the contact points during the adjustment process, making it impossible to guarantee that the spring itself will not deform. Summary of the Invention

[0005] This application aims to at least solve one of the technical problems existing in the prior art. To this end, this application proposes a spring pitch shaping device, including a base. Two sets of lower support assemblies are symmetrically arranged on the base. Each of the two sets of lower support assemblies has two support cylinders arranged side-by-side. The four support cylinders support the spring to be shaped from both ends, with the two ends of the spring placed above the two side-by-side support cylinders. The two side-by-side support cylinders rotate synchronously in the same direction. Two angle adjustment assemblies are also symmetrically slidably arranged on the base. The lower support assemblies are driven by the angle adjustment assemblies and change angle around one end of themselves. The distance between the two angle adjustment assemblies is controlled by the axial extension and contraction of the spring to be shaped. The lower support assembly is provided with an upper pressing assembly for axially inserting the spring and pressing it against the two parallel support cylinders. Two horizontal guide rails are symmetrically arranged on both sides of the two sets of lower support assemblies. Pitch trimming assemblies are provided on the horizontal guide rails, and pitch adjustment plugs are installed on each of the two sets of pitch trimming assemblies. The two pitch adjustment plugs are driven axially by their respective pitch trimming assemblies. The two pitch adjustment plugs are inserted into the same pitch from both sides of the spring to be shaped, and the two horizontal guide rails drive the two sets of pitch trimming assemblies to move in opposite directions to achieve a change in the pitch of the spring to be shaped.

[0006] Preferably, the base is arranged in a symmetrical Z-shape, with space between the two Z-shapes for placing the spring to be shaped.

[0007] Preferably, two unpowered slide rails are symmetrically arranged on the base, and the upper pressing component is fixed to the displacement end of the unpowered slide rail.

[0008] Preferably, the lower support assembly includes a rotary motor, which is fixedly connected to the angle adjustment assembly. The output end of the rotary motor is keyed to a first pulley assembly, and the other end of the first pulley assembly is keyed to a second pulley assembly. The two support cylinders are respectively keyed to the two pulleys of the second pulley assembly. A housing is provided on the outside of the second pulley assembly, and the housing is fixedly connected to the angle adjustment assembly.

[0009] Preferably, the sidewall of the support cylinder is provided with a plurality of axial grooves evenly distributed along the axial circumference.

[0010] Preferably, the angle adjustment includes a support fixed to the displacement end of the unpowered slide rail, a rotary table rotatably connected to the support, a driven gear fixed to one side of the support, the driven gear and the rotating end of the rotary table being coaxial, the lower support assembly fixed to the rotary table, an angle motor fixed to the rotary table, the output end of the angle motor being keyed to a driving gear, and the driving gear meshing with the driven gear.

[0011] Preferably, the upper pressing assembly includes a vertical support fixed to the rotary table, a lower pressing guide rail fixed to the vertical support, a mounting base fixed to the displacement end of the lower pressing guide rail, a pressing shaft fixed to the mounting base, and a sliding cylinder coaxially rotatably sleeved on the pressing shaft, the sliding cylinder abutting against the spring to be shaped from the inside.

[0012] Preferably, the pitch trimming assembly includes a water displacement bracket fixed to the displacement end of the horizontal guide rail, a telescopic member fixed to the displacement end of the water displacement bracket, a mounting plate fixed to the telescopic end of the telescopic member, and the pitch adjustment plug fixed to the mounting plate.

[0013] Preferably, the top of the water displacement bracket is inclined, so that the axial displacement of the pitch adjustment plug is inclined relative to the side of the spring to be shaped.

[0014] Preferably, the pitch adjustment plug includes a shaft, one end of which is coaxially provided with a rotating disk, the rotating disk being fixedly connected to the pitch trimming assembly, and the other end of the shaft is coaxially fixedly sleeved with an outer cylinder, the outer cylinder being inserted between the pitches of the spring to be shaped.

[0015] The beneficial effects of this invention are:

[0016] 1. By using the angle adjustment component to adjust the angle of the lower support component, the applicability of this application is expanded, and it can be applied to variable diameter springs and constant diameter springs. By using two sets of pitch adjustment plugs to be inserted into the same pitch of the spring and to be able to move in opposite directions, the applicability of this application is further expanded, such as to variable pitch springs.

[0017] 2. By using a support cylinder to support the rotation of the spring to be shaped, the spring rotates around its own axis during the pitch adjustment process. This causes the contact point between the pitch adjustment plug and the spring to change constantly, avoiding deformation and damage to the spring structure caused by a fixed force point during pitch adjustment, thus improving the spring shaping efficiency.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1This is a schematic diagram of the overall structure of a spring pitch shaping device according to an embodiment of this application;

[0021] Figure 2 This is a side view of a spring pitch shaping device according to an embodiment of this application;

[0022] Figure 3 This is a top view of a spring pitch shaping device according to an embodiment of this application;

[0023] Figure 4 This is an exploded view of a spring pitch shaping device according to an embodiment of this application;

[0024] Figure 5 This is a schematic diagram of the structure of the lower support component according to an embodiment of this application;

[0025] Figure 6 This is a schematic diagram of the angle adjustment component according to an embodiment of this application;

[0026] Figure 7 This is a schematic diagram of the structure of the pressure assembly according to an embodiment of this application;

[0027] Figure 8 This is a schematic diagram of the structure and installation position of the pitch adjustment plug according to an embodiment of this application;

[0028] Figure 9 This is a side view of the pitch adjustment plug according to an embodiment of this application;

[0029] Figure 10 This is a cross-sectional view of the pitch adjustment plug according to an embodiment of this application;

[0030] Figure 11 This is a partial structural diagram of the pitch adjustment plug according to an embodiment of this application. Figure 1 ;

[0031] Figure 12 This is a partial structural diagram of the pitch adjustment plug according to an embodiment of this application. Figure 2 .

[0032] Icons: 1. Base; 11. Unpowered slide rail; 12. Horizontal guide rail; 2. Lower support assembly; 21. Rotary motor; 211. First pulley assembly; 22. Second pulley assembly; 23. Support cylinder; 231. Axial groove; 3. Angle adjustment assembly; 31. Support; 32. Rotary table; 321. Driven gear; 33. Angle motor; 331. Driven gear; 4. Upper pressure assembly; 41. Vertical bracket; 42. Lower pressure guide rail; 421. Mounting base; 43. 431. Pressure shaft; 5. Slide cylinder; 6. Pitch trimming assembly; 7. Water displacement bracket; 8. Telescopic guide rail; 9. Telescopic component; 10. Mounting plate; 11. Guide rod; 12. Pitch adjustment plug; 13. Shaft; 14. Spiral groove; 15. Center cavity; 16. Rotating disk; 17. Inner cavity; 18. Air outlet; 19. Outer cylinder; 10. Inner cylinder; 11. Air inlet cavity; 12. Return cavity; 13. Air guide channel; 14. Fan blade; 15. Baffle. Detailed Implementation

[0033] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0034] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0035] Example 1, as Figures 1-9 As shown, a spring pitch shaping device according to an embodiment of this application includes a base 1. The base 1 is symmetrically arranged in a Z-shape, with a space between the two Z-shapes for placing the spring to be shaped. Two unpowered slide rails 11 are symmetrically arranged on the base 1. Specifically, the two unpowered slide rails 11 are located at the protruding ends of the Z-shapes. Two horizontal guide rails 12 are also symmetrically arranged on the base 1, with the two horizontal guide rails 12 located on both sides of the two unpowered slide rails 11.

[0036] It should be noted that the unpowered slide rail 11 only serves a passive sliding function, while the horizontal guide rail 12 has an active displacement capability.

[0037] In a specific embodiment of this application, two sets of lower support components 2 are symmetrically arranged on the base 1. The lower support component 2 includes a rotary motor 21. The output end of the rotary motor 21 is key-connected to a first pulley assembly 211. The other end of the first pulley assembly 211 is key-connected to a second pulley assembly 22. Two support cylinders 23 are key-connected to the two pulleys of the second pulley assembly 22, respectively.

[0038] like Figures 1-4 As shown, four support cylinders 23 are used to support the spring to be shaped from both ends. The two ends of the spring to be shaped are placed above the two parallel support cylinders 23. It can be understood that the rotary motor 21 drives the second pulley assembly 22 to rotate through the first pulley assembly 211, so that the two parallel support cylinders 23 rotate synchronously in the same direction.

[0039] It can be further understood that the four support cylinders 23 on the two sets of symmetrically arranged lower support components 2 rotate synchronously and in the same direction during actual use, so that the springs to be shaped carried on them can roll around their own axis.

[0040] It should be noted that, in the specific embodiments of this application, a plurality of axial grooves 231 are uniformly provided on the side wall of the support cylinder 23 along the axial circumferential direction. This will increase the friction between the support cylinder 23 and the spring to be shaped, and prevent the spring to be shaped from being unable to roll due to low friction during the pitch shaping process.

[0041] Furthermore, two angle adjustment components 3 are symmetrically slidably arranged on the base 1. The lower support component 2 is driven by the angle adjustment component 3 and changes angle with one end of itself as the axis. The distance between the two angle adjustment components 3 is controlled by the axial extension and contraction of the spring to be shaped.

[0042] Specifically, the angle adjustment component 3 includes a support 31 fixed to the displacement end of the unpowered slide rail 11, a rotary table 32 rotatably connected to the support 31, a driven gear 321 fixed to one side of the support 31, the driven gear 321 and the rotating end of the rotary table 32 being coaxial, and a lower support component 2 fixed to the rotary table 32. Specifically, the rotary motor 21 in the lower support component 2 is fixed to the rotary table 32, and the second pulley component 22 in the lower support component 2 is provided with a housing, which is also fixed to the rotary table 32, thus ensuring the stability between the first pulley component 211 and the second pulley component 22. An angle motor 33 is also fixed to the rotary table 32, and the output end of the angle motor 33 is keyed to the drive gear 331, which meshes with the driven gear 321.

[0043] Therefore, it can be understood that the angle motor 33 drives the active gear 331 to rotate, and the active gear 331 meshes with the passive gear 321, so that the rotary table 32 can rotate relative to the support 31 (angle change). It can also be understood that the rotation of the rotary table 32 will cause the lower support assembly 2 on it to rotate synchronously and in the same direction. It should be noted that when the lower support assembly 2 rotates about the passive gear 321 as the axis and tilts itself downward, it can be used for variable diameter springs. When the lower support assembly 2 is in a horizontal state, it can be used for constant diameter springs.

[0044] It should be noted that, in a specific embodiment of this application, the lower support assembly 2 is provided with an upper pressing assembly 4, which is used to insert the two ends of the spring axially and press the spring onto the two parallel support cylinders 23.

[0045] The upper pressure assembly 4 includes a vertical support 41 fixed to the rotary table 32. The vertical support 41 is fixed to the displacement end of the non-powered slide rail 11. A lower pressure guide rail 42 is fixed to the vertical support 41. A mounting base 421 is fixed to the displacement end of the lower pressure guide rail 42. A pressure shaft 43 is fixed to the mounting base 421. A slide cylinder 431 is coaxially rotatably sleeved on the pressure shaft 43. The slide cylinder 431 abuts against the spring to be shaped from the inside.

[0046] It is understandable that when the slide cylinder 431 is rotatably mounted on the pressure shaft 43, so that the spring is pressed against the support cylinder 23, no friction is generated between the spring and the slide cylinder 431, and the rotation of the spring between the support cylinder 23 and the slide cylinder 431 is not affected.

[0047] It can be further understood that the angle between the slide cylinder 431 and the support cylinder 23 will not change, and only the axial distance between them can change. In this way, when the support cylinder 23 changes angle on the horizontal plane, the slide cylinder 431 will change angle synchronously and in the same direction to ensure that the spring is stably pressed between the two support cylinders 23.

[0048] It can also be understood that after the spring is fixed, when the spring pitch is adjusted in actual operation, the axial length of the spring will change. As a result, the lower support assembly 2, upper pressure assembly 4, and angle adjustment assembly 3 at both ends will be displaced on the corresponding unpowered slide rail 11. That is, the distance between the lower support assembly 2, upper pressure assembly 4, and angle adjustment assembly 3 at both ends will change synchronously with the change in the axial length of the spring.

[0049] In a specific embodiment of this application, a pitch trimming assembly 5 is provided on the horizontal guide rail 12, and a pitch adjustment plug 6 is installed on each of the two sets of pitch trimming assemblies 5. The two pitch adjustment plugs 6 are driven by the corresponding pitch trimming assembly 5 to undergo axial displacement.

[0050] Specifically, the pitch trimming assembly 5 includes a water displacement bracket 51 fixed to the displacement end of the horizontal guide rail 12, a telescopic member 53 fixed to the displacement end of the water displacement bracket 51, a mounting plate 54 fixed to the telescopic end of the telescopic member 53, and a pitch adjustment plug 6 fixed to the mounting plate 54.

[0051] The top of the water displacement bracket 51 is inclined, so that the axial displacement of the pitch adjustment plug 6 is inclined relative to the side of the spring to be shaped.

[0052] It should be noted that, as Figure 8 As shown, at least two guide rods 541 are fixedly connected to the mounting plate 54. The two guide rods 541 are slidably inserted into the position of the mounting telescopic member 53 to ensure the stability of the mounting plate 54 when it is displaced by the telescopic member 53 and to avoid rotation.

[0053] Two pitch adjustment plugs 6 are inserted into the same pitch from both sides of the spring to be shaped, and the two sets of pitch trimming components 5 are driven by two horizontal guide rails 12 to move in opposite directions to change the pitch of the spring to be shaped.

[0054] Specifically, the pitch adjustment plug-in 6 includes a shaft 61, one end of which is coaxially provided with a rotating disk 62, which is fixedly connected to the pitch trimming component 5. The other end of the shaft 61 is coaxially fixedly sleeved with an outer cylinder 63, which is inserted into the pitch of the spring to be shaped.

[0055] Thus, in practical use, the angles of the two sets of lower support components 2 are adjusted according to the shape of the spring (whether it is a variable diameter spring). Then, the spring to be shaped is placed on the two sets of lower support components 2, with the ends of the spring located on the two parallel support cylinders 23. Then, the sliding cylinder 431 on the pressure shaft 43 is inserted into the spring from the end and moves downward, so that the spring is pressed against the two support cylinders 23 and forms a stable state. Then, the outer cylinder 63 on it is inserted from both sides of the spring into the same pitch through the telescopic guide rails 52 and telescopic parts 53 on both sides. The two sets of rotary motors 21 are simultaneously When activated, the spring rolls, and simultaneously the two sets of pitch-adjusting components 5 are moved away from each other, causing the spring pitch to increase as the two outer cylinders 63 expand. Conversely, to reduce the spring pitch, the two outer cylinders 63 are inserted into both sides of the same pitch, bringing the two sets of pitch-adjusting components 5 closer together. During pitch adjustment, because the spring is in a rolling state (rotating around its own axis), the contact point between the spring and the two outer cylinders 63 inside it will be in a non-fixed state due to rotation. This design ensures that the spring will not be damaged during pitch adjustment due to fixed contact points.

[0056] In related technologies, in the process of shaping the spring pitch, the two outer cylinders 63 and the spring body exhibit a sliding phenomenon. Thus, in the shaping process of some special springs (such as those with thicker spring wires that require greater force to achieve pitch change), the outer cylinders 63 and the spring will generate a certain amount of heat due to the greater friction. Although this heat may not affect the spring pitch shaping, it may accelerate the wear of the outer cylinders 63 during long-term use.

[0057] Example 2, according to some embodiments of this application, such as Figure 8 and Figure 9 As shown, the shaft 61 and the rotating disk 62 are rotatably connected. The end of the shaft 61 facing the rotating disk 62 is fitted with a fan blade 64, which rotates synchronously and in the same direction as the shaft 61.

[0058] Therefore, it can be understood that in actual use, and given the rotatable connection between shaft 61 and rotating disk 62, when the spring pitch is being shaped, the outer cylinder 63 and the spring body will exhibit a rolling phenomenon. That is, under the action of friction, the outer cylinder 63 and shaft 61 will rotate on the rotating disk 62. This will reduce the heat generated by friction between the outer cylinder 63 and the spring body. At the same time, the rotation of shaft 61 will also synchronously drive the fan blade 64 fixedly mounted on it to rotate. During the rotation, the fan blade 64 will generate airflow and blow it towards the outer cylinder 63. This further reduces the heat generated at the outer cylinder 63 and extends the service life of the outer cylinder 63.

[0059] In related technologies, although the outer cylinder 63 and the spring are in rolling contact and the fan blade 64 can deliver airflow to the outer cylinder 63 by rotation, the airflow only has a certain heat dissipation effect on the outside of the outer cylinder 63. The heat accumulated inside the outer cylinder 63 is difficult to dissipate, and the rotation of the shaft 61 on the rotating disk 62 will also cause heat accumulation between the two. Once the heat exceeds the safety threshold, it will affect the stability of the shaft 61 on the rotating disk 62, and in severe cases, it may even cause the shaft 61 to shift axially, affecting the spring pitch shaping work.

[0060] Example 3, according to some embodiments of this application, such as Figures 10-12 As shown, the outer wall of the shaft 61 is uniformly provided with multiple air intake channels in the circumferential direction, and the shaft 61 is provided with an air outlet channel through the shaft; the rotating disk 62 is provided with a channel that communicates with the air outlet channel in the shaft 61, and multiple air outlet holes are provided on its circumference; the outer cylinder 63 is divided into two layers, with a channel that communicates with the air intake channel on the shaft 61 and a channel that communicates with the air outlet channel in the shaft 61, and the two layers of channels in the outer cylinder 63 are connected.

[0061] Specifically, the air intake channel on the outer wall of the shaft 61 is a spiral groove 611, and the air outlet channel inside the shaft 61 is a central cavity 612; the channel inside the rotating disk 62 that communicates with the air outlet channel inside the shaft 61 is an inner cavity 621, and the air outlet hole 622 on the periphery of the rotating disk 62 is an air outlet; the inner cylinder 631 is coaxially fixed to the inner side of the outer cylinder 63, and the channel between the inner cylinder 631 and the outer cylinder 63 is an air intake cavity 632, which communicates with the spiral groove 611. The channel between the inner side of the inner cylinder 631 and the central cavity 612 is a return cavity 633, and multiple air guide channels 634 are evenly arranged circumferentially between the air intake cavity 632 and the return cavity 633.

[0062] It should be noted that the spiral groove 611 on the outer side of the shaft 61 will allow airflow to be generated inside it during rotation. Combined with the airflow blown by the fan blade 64, the airflow will converge into the air intake chamber 632 along the spiral trajectory. The airflow will rotate to a certain extent in the air intake chamber 632, which will make the airflow evenly distributed, so as to better carry away the heat accumulated in the outer cylinder 63 from the inside.

[0063] A baffle 65 is provided between the rotating disk 62 and the fan blade 64, and the baffle 65 is fixedly sleeved on the shaft 61.

[0064] Therefore, it can be understood that in actual use, the airflow generated by the fan blade 64 during rotation and the airflow generated within the spiral groove 611 itself when the shaft 61 rotates converge into the air intake chamber 632 along the spiral groove 611, and generate a certain rotational motion inside the air intake chamber 632, so that the airflow can be evenly distributed, improving the heat carrying effect inside the outer cylinder 63. The airflow from the air intake chamber 632 converges into the return chamber 633 through multiple air guide channels 634, and enters the inner cavity 621 along the central cavity 612, and finally escapes from multiple air outlets 622. During this process, when the airflow enters the inner cavity 621 from the central cavity 612, it will also carry the heat generated between the shaft 61 and the rotating disk 62 due to rotation, and deliver it to the outside. It should be noted that the design of the baffle 65 can, to a certain extent, prevent the airflow carrying heat that escapes from the rotating disk 62 from blowing back towards the outer cylinder 63 due to the negative pressure formed in the opposite direction of the fan blade 64's rotation, thus affecting the heat dissipation effect.

[0065] It should be noted that the specific models and specifications of the unpowered slide rail 11, horizontal guide rail 12, rotary motor 21, first pulley assembly 211, second pulley assembly 22, driven gear 321, angle motor 33, driving gear 331, pressing guide rail 42, telescopic guide rail 52, telescopic component 53, and fan blade 64 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0066] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A spring pitch shaping device, characterized in that, include: The base (1) has two sets of lower support components (2) symmetrically arranged on it. The two sets of lower support components (2) each have two support cylinders (23) arranged side by side. The four support cylinders (23) are used to support the spring to be shaped from both ends. The two ends of the spring to be shaped are placed above the two support cylinders (23) arranged side by side. The two parallel support cylinders (23) rotate synchronously in the same direction; Two angle adjustment components (3) are symmetrically slidably arranged on the base (1). The lower support component (2) is driven by the angle adjustment component (3) and changes angle with one end of itself as the axis. The distance between the two angle adjustment components (3) is controlled by the axial extension and contraction of the spring to be shaped. The lower support assembly (2) is provided with an upper pressing assembly (4) for inserting the spring axially and pressing the spring against the two parallel support cylinders (23). Two horizontal guide rails (12) are symmetrically arranged on both sides of the two sets of lower support components (2). A pitch trimming component (5) is provided on the horizontal guide rail (12). A pitch adjustment plug (6) is installed on each of the two sets of pitch trimming components (5). The two pitch adjustment plugs (6) are driven by the corresponding pitch trimming components (5) to undergo axial displacement. The two pitch adjustment plugs (6) are respectively inserted into the same pitch from both sides of the spring to be shaped, and the two horizontal guide rails (12) drive the two sets of pitch trimming components (5) to move in opposite directions to realize the change of the pitch of the spring to be shaped.

2. The spring pitch shaping device as described in claim 1, characterized in that, The base (1) is arranged in a symmetrical Z-shape, with space between the two Z-shapes for placing the spring to be shaped.

3. The spring pitch shaping device as described in claim 1, characterized in that, Two unpowered slide rails (11) are symmetrically arranged on the base (1), and the upper pressure component (4) is fixed to the displacement end of the unpowered slide rail (11).

4. The spring pitch shaping device as described in claim 1, characterized in that, The lower support assembly (2) includes a rotary motor (21), which is fixedly connected to the angle adjustment assembly (3). The output end of the rotary motor (21) is keyed to a first pulley assembly (211), and the other end of the first pulley assembly (211) is keyed to a second pulley assembly (22). The two support cylinders (23) are respectively keyed to the two pulleys of the second pulley assembly (22). The second pulley assembly (22) has a housing on its outer side, which is fixedly connected to the angle adjustment assembly (3).

5. The spring pitch shaping device as described in claim 1, characterized in that, The side wall of the support cylinder (23) is provided with a plurality of axial grooves (231) evenly arranged along the axial circumference.

6. The spring pitch shaping device as described in claim 3, characterized in that, The angle adjustment assembly (3) includes a support (31) fixed to the displacement end of the unpowered slide rail (11), a rotary table (32) is rotatably inserted on the support (31), a driven gear (321) is fixed to one side of the support (31), the driven gear (321) and the rotating end of the rotary table (32) are coaxial, the lower support assembly (2) is fixed to the rotary table (32), an angle motor (33) is also fixed to the rotary table (32), the output end of the angle motor (33) is keyed to the driving gear (331), the driving gear (331) and the driven gear (321) mesh.

7. A spring pitch shaping device as described in claim 6, characterized in that, The upper pressure assembly (4) includes a vertical support (41) fixed to the rotary table (32), a lower pressure guide rail (42) fixed to the vertical support (41), a mounting base (421) fixed to the displacement end of the lower pressure guide rail (42), a pressure shaft (43) fixed to the mounting base (421), and a slide cylinder (431) coaxially rotatably mounted on the pressure shaft (43). The slide cylinder (431) abuts against the spring to be shaped from the inside.

8. The spring pitch shaping device as described in claim 1, characterized in that, The pitch trimming assembly (5) includes a water displacement bracket (51) fixed to the displacement end of the horizontal guide rail (12), a telescopic member (53) fixed to the displacement end of the water displacement bracket (51), a mounting plate (54) fixed to the telescopic end of the telescopic member (53), and a pitch adjustment plug (6) fixed to the mounting plate (54).

9. A spring pitch shaping device as described in claim 8, characterized in that, The top of the water displacement bracket (51) is inclined, so that the axial displacement of the pitch adjustment plug (6) is inclined relative to the side of the spring to be shaped.

10. A spring pitch shaping device as described in claim 1, characterized in that, The pitch adjustment plug (6) includes a shaft (61), one end of which is coaxially provided with a rotating disk (62), the rotating disk (62) is fixedly connected to the pitch trimming assembly (5), and the other end of the shaft (61) is coaxially fixedly sleeved with an outer cylinder (63), the outer cylinder (63) is inserted between the pitches of the spring to be shaped.

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