Outer diameter adjusting mechanism of spring machine

Abstract

The utility model discloses an outer diameter adjusting mechanism of a spring machine, and relates to the technical field of spring machines, the outer diameter adjusting mechanism comprises a rack, a driving mechanism, a first cam and two groups of adjusting assemblies which are symmetrically arranged, each adjusting assembly comprises a first connecting rod, a sliding seat, a compression spring, a sliding block and a tool bit, and the driving mechanism drives the first cam to rotate; the middle of the first connecting rod is hinged to the machine frame, one end of the first connecting rod abuts against the wheel face of the first cam, the other end of the first connecting rod abuts against the sliding block, the sliding base is fixedly arranged on the machine frame, the sliding block is arranged on the sliding base in a sliding mode, a sliding groove is formed in the bottom of the sliding block, a fixing block is fixedly arranged on the sliding base, and the fixing block is arranged in the sliding groove in a sliding mode. The sliding block slides to the first connecting rod through the compression spring, and the tool bit is fixedly arranged on the sliding block. According to the utility model, the driving mechanism only needs to rotate in one direction, so that the spring with variable outer diameter can be manufactured, and the service life of the spring is prolonged to a certain extent.

Description

Technical Field

[0001] This utility model relates to the field of spring machine technology, and in particular to an outer diameter adjustment mechanism for a spring machine. Background Technology

[0002] The outer diameter of a spring refers to its maximum outer diameter. This parameter is crucial for determining the shape and size of the spring and also affects the space requirements during installation. Spring machines typically adjust the outer diameter of the spring using an outer diameter adjustment mechanism during production. Chinese utility model CN201832927U discloses a spring outer diameter control device for a CNC spring coiling machine. This solution adjusts the position of the outer diameter cutter head through the cooperation of a first slide and a second slide. When producing springs with varying outer diameters, a motor drives a lead screw assembly, which in turn moves the outer diameter cutter head. After the first spring is produced, the motor reverses, driving the outer diameter cutter head backward via the lead screw nut, and then the motor rotates forward to begin producing the second spring. This requires frequent switching of the motor's rotation direction, which affects its lifespan to some extent. Against this backdrop, the applicant is dedicated to developing an outer diameter adjustment mechanism for a spring machine that allows the drive mechanism to rotate only in one direction to produce springs with varying outer diameters, thus extending its lifespan to some extent. Utility Model Content

[0003] The purpose of this invention is to enable the drive mechanism to rotate in only one direction, thus producing a spring with a variable outer diameter and extending its service life to a certain extent.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An outer diameter adjustment mechanism for a spring machine includes a frame, a drive mechanism, a first cam, and two sets of symmetrically arranged adjustment components.

[0006] The adjustment assembly includes a first connecting rod, a slide block, a compression spring, a slider, and a cutter head. The drive mechanism drives the first cam to rotate. The middle part of the first connecting rod is hinged to the frame. One end of the first connecting rod abuts against the wheel surface of the first cam, and the other end of the first connecting rod abuts against the slider. The slide block is fixedly mounted on the frame, and the slider slides on the slide block. A groove is provided at the bottom of the slider. A fixing block is fixedly mounted on the slide block and slides in the groove. The compression spring is located in the groove, and its two ends abut against one end in the groove and the fixing block, respectively. The slider slides towards the first connecting rod through the compression spring. The cutter head is fixedly mounted on the slider.

[0007] Furthermore, a first roller is provided at one end of the first connecting rod near the first cam, and the surface of the first roller abuts against the surface of the first cam.

[0008] Furthermore, a first adjusting rod is screwed onto the end of the first connecting rod near the slider, and one end of the first adjusting rod abuts against the slider.

[0009] Furthermore, a push block is fixedly provided on the slider, and the first adjusting rod abuts against the push block.

[0010] Furthermore, the adjustment assembly also includes a second adjustment rod, an adjustment member, and a second connecting rod. The adjustment member is fixed to the middle of the second connecting rod. One end of the second adjustment rod is hinged to the frame, and the other end is screwed to the adjustment member. One end of the second connecting rod is hinged to the frame, and the other end abuts against the slider. The first connecting rod and the second connecting rod abut against two opposite sides of the slider, respectively.

[0011] Furthermore, a second roller is pivotally connected to one end of the second connecting rod near the slider, and the surface of the second roller abuts against the slider.

[0012] Furthermore, the adjustment assembly also includes an adjustment seat and an adjustment block. The adjustment seat is fixedly mounted on the slider and has an adjustment groove. The adjustment block is fixedly mounted in the adjustment groove, and the cutter head is fixedly mounted on the adjustment block.

[0013] Furthermore, the adjustment assembly also includes a pivot shaft, a second cam, and a third link. The pivot shaft is pivotally connected to the frame, the middle part of the first link is fixed to the pivot shaft, one end of the third link is fixed to the pivot shaft, and the other end of the third link abuts against the wheel surface of the second cam. The drive mechanism drives the second cam to rotate.

[0014] Furthermore, a third roller is pivotally connected to one end of the third link near the second cam, and the surface of the third roller abuts against the surface of the second cam.

[0015] Furthermore, it also includes a limiting block, which is fixedly mounted on the frame and located between the slides of the two sets of adjustment components.

[0016] The beneficial effects of this utility model are as follows: Under the stretching action of its own elastic force, the compression spring of this utility model continuously pushes the slider towards the first connecting rod; the drive mechanism drives the first cam to rotate, and when the first cam rotates, it causes one end of the first connecting rod to swing up and down, thereby causing the other end of the first connecting rod to push the slider to slide back and forth along the slide block. The slider drives the cutter head to move back and forth, thereby guiding the spring with changing outer diameter. Compared with the traditional technology, the drive mechanism of this utility model only needs to rotate in one direction to realize the back and forth movement of the cutter head, which is beneficial to the production of springs with changing outer diameter and extends the service life of the drive mechanism to a certain extent. Attached Figure Description

[0017] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a rear view of the overall structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of one set of adjustment components of this utility model;

[0020] Figure 4 This is a structural schematic diagram of the slide, slider, adjusting seat, adjusting block, and cutter head of this utility model;

[0021] Figure 5 This is an exploded view of the slide block, slider, and compression spring of this utility model;

[0022] Frame 1, Drive mechanism 2, First cam 3,

[0023] Adjustment assembly 4, first connecting rod 41, first roller 411, first adjusting rod 412, slide block 42, compression spring 43, slider 44, push block 441, slide groove 442, cutter head 45, second adjusting rod 46, adjusting component 47, second connecting rod 48, second roller 481, adjusting seat 49, adjusting block 51, pivot shaft 52, third connecting rod 53.

[0024] Limit block 5. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings. It should be noted that, in this embodiment, when using the first cam 3, the second cam needs to be removed first; when using the second cam, the first cam 3 needs to be removed first.

[0026] like Figures 1 to 5 The outer diameter adjustment mechanism of a spring machine shown includes a frame 1, a drive mechanism 2, a first cam 3, two sets of symmetrically arranged adjustment components 4, and a limit block 5.

[0027] The adjustment assembly 4 includes a first connecting rod 41, a slide block 42, a compression spring 43, a slider 44, a cutter head 45, a second adjusting rod 46, an adjusting component 47, a second connecting rod 48, an adjusting seat 49, an adjusting block 51, a pivot shaft 52, a second cam, and a third connecting rod 53.

[0028] The drive mechanism 2 drives the first cam 3 to rotate. The middle part of the first connecting rod 41 is hinged to the frame 1. One end of the first connecting rod 41 abuts against the wheel surface of the first cam 3, and the other end of the first connecting rod 41 abuts against the slider 44. More specifically, the first connecting rod 41 is provided with a first roller 411 at the end near the first cam 3. The wheel surface of the first roller 411 abuts against the wheel surface of the first cam 3. A first adjusting rod 412 is screwed onto the end of the first connecting rod 41 near the slider 44. One end of the first adjusting rod 412 abuts against the slider 44.

[0029] A push block 441 is fixedly mounted on the slider 44, and the first adjusting rod 412 abuts against the push block 441.

[0030] The slide block 42 is fixedly mounted on the frame 1, and the slider 44 is slidably mounted on the slide block 42. A groove 442 is provided at the bottom of the slider 44. A fixing block is fixedly mounted on the slide block 42 and is slidably mounted in the groove 442. A compression spring 43 is located in the groove 442 and its two ends abut against one end in the groove 442 and the fixing block, respectively. The slider 44 slides toward the first connecting rod 41 through the compression spring 43. The drive mechanism 2 drives the first cam 3 to rotate. When the first cam 3 rotates, it drives one end of the first connecting rod 41 to swing up and down, thereby causing the other end of the first connecting rod 41 to push the slider 44 to slide back and forth along the slide block 42.

[0031] The cutter head 45 is fixedly mounted on the slider 44. The slider 44 drives the cutter head 45 to move back and forth, thereby guiding the spring with changing outer diameter and realizing the back and forth movement of the cutter head 45, which in turn facilitates the production of the spring with changing outer diameter.

[0032] The adjusting seat 49 is fixedly mounted on the slider 44, and an adjusting groove is provided on the adjusting seat 49. The adjusting block 51 is fixedly mounted in the adjusting groove, and the cutter head 45 is fixedly mounted on the adjusting block 51. By adjusting the position of the adjusting seat 49 in the adjusting groove, the position of the cutter head 45 can be adjusted.

[0033] Adjusting component 47 is fixed in the middle of the second connecting rod 48. One end of the second adjusting rod 46 is hinged to the frame 1, and the other end is screwed into the adjusting component 47.

[0034] One end of the second link 48 is hinged to the frame 1, and the other end abuts against the slider 44. The first link 41 and the second link 48 abut against the two opposite sides of the slider 44 respectively. More specifically, the second link 48 is pivotally connected to the end of the second link 48 near the slider 44 with a second roller 481, and the wheel surface of the second roller 481 abuts against the slider 44.

[0035] When it is necessary to produce a spring with a fixed outer diameter, the adjusting component 47 is turned to adjust the tilt angle of the second connecting rod 48, thereby fixing the lower limit position of the slider 44 through the second connecting rod 48. Then, the first adjusting rod 412 is turned to make the first adjusting rod 412 abut against the slider 44, thereby fixing the upper limit position of the slider 44 through the first adjusting rod 412. At this time, the slider 44 is fixed by the second connecting rod 48 and the first adjusting rod 412, which facilitates the production of a spring with a fixed outer diameter.

[0036] The pivot shaft 52 is pivotally connected to the frame 1. The middle part of the first connecting rod 41 is fixed to the pivot shaft 52. One end of the third connecting rod 53 is fixed to the pivot shaft 52. The other end of the third connecting rod 53 abuts against the wheel surface of the second cam. More specifically, the third connecting rod 53 is pivotally connected to a third roller at the end near the second cam. The wheel surface of the third roller abuts against the wheel surface of the second cam.

[0037] Drive mechanism 2 drives the second cam to rotate.

[0038] The drive mechanism 2 drives the second cam to rotate, the second cam drives the third link 53 to swing, the third link 53 drives the first link 41 to swing through the pivot shaft 52, the first link 41 cooperates with the compression spring 43 to push the slider 44 to slide along the slide block 42, thereby realizing the reciprocating movement of the cutter head 45, which is beneficial for the production of springs with changing outer diameter.

[0039] The limiting block 5 is fixedly installed on the frame 1, and the limiting block 5 is located between the slides 42 of the two sets of adjustment components 4.

[0040] The working principle of this utility model is as follows: When it is necessary to produce a spring with a fixed outer diameter, the adjusting component 47 is turned to adjust the tilt angle of the second connecting rod 48, thereby making the second connecting rod 48 abut against the lower limit position of the slider 44. Then, the first adjusting rod 412 is turned to make the first adjusting rod 412 abut against the upper limit position of the slider 44. At this time, the slider 44 is fixed by the second connecting rod 48 and the first adjusting rod 412, which facilitates the production of springs with a fixed outer diameter. When it is necessary to produce a spring with a variable outer diameter, the driving mechanism 2 drives the first cam 3 to rotate. When the first cam 3 rotates, it drives one end of the first connecting rod 41 to swing up and down, thereby causing the other end of the first connecting rod 41 to push the slider 44 to slide back and forth along the slide block 42. The slider 44 drives the cutter head 45 to move back and forth, thereby guiding the spring with a variable outer diameter, which facilitates the production of springs with a variable outer diameter.

[0041] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of protection of the present utility model. Therefore, any equivalent changes made in accordance with the scope of the patent application of the present utility model shall still fall within the scope of the present utility model. The above does not constitute any limitation on the technical scope of the present utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An outer diameter adjustment mechanism for a spring machine, comprising a frame, characterized in that: It also includes a drive mechanism, a first cam, and two sets of symmetrically arranged adjustment components. The adjustment assembly includes a first connecting rod, a slide block, a compression spring, a slider, and a cutter head. The drive mechanism drives the first cam to rotate. The middle part of the first connecting rod is hinged to the frame. One end of the first connecting rod abuts against the wheel surface of the first cam, and the other end of the first connecting rod abuts against the slider. The slide block is fixedly mounted on the frame, and the slider slides on the slide block. A groove is provided at the bottom of the slider. A fixing block is fixedly mounted on the slide block and slides in the groove. The compression spring is located in the groove, and its two ends abut against one end in the groove and the fixing block, respectively. The slider slides towards the first connecting rod through the compression spring. The cutter head is fixedly mounted on the slider.

2. The outer diameter adjustment mechanism for a spring machine according to claim 1, characterized in that: A first roller is provided at one end of the first connecting rod near the first cam, and the surface of the first roller abuts against the surface of the first cam.

3. The outer diameter adjustment mechanism for a spring machine according to claim 1, characterized in that: A first adjusting rod is screwed onto the end of the first connecting rod near the slider, and one end of the first adjusting rod abuts against the slider.

4. The outer diameter adjustment mechanism for a spring machine according to claim 3, characterized in that: A push block is fixedly mounted on the slider, and the first adjusting rod abuts against the push block.

5. The outer diameter adjustment mechanism for a spring machine according to claim 1, characterized in that: The adjustment assembly further includes a second adjustment rod, an adjustment member, and a second connecting rod. The adjustment member is fixed to the middle of the second connecting rod. One end of the second adjustment rod is hinged to the frame, and the other end is screwed to the adjustment member. One end of the second connecting rod is hinged to the frame, and the other end abuts against the slider. The first connecting rod and the second connecting rod abut against two opposite sides of the slider, respectively.

6. The outer diameter adjustment mechanism for a spring machine according to claim 5, characterized in that: The second connecting rod is pivotally connected to a second roller at one end near the slider, and the surface of the second roller abuts against the slider.

7. The outer diameter adjustment mechanism for a spring machine according to claim 1, characterized in that: The adjustment assembly further includes an adjustment seat and an adjustment block. The adjustment seat is fixedly mounted on the slider and has an adjustment groove. The adjustment block is fixedly mounted in the adjustment groove, and the cutter head is fixedly mounted on the adjustment block.

8. The outer diameter adjustment mechanism of a spring machine according to claim 1, characterized in that: The adjustment assembly further includes a pivot shaft, a second cam, and a third link. The pivot shaft is pivotally connected to the frame. The middle part of the first link is fixed to the pivot shaft. One end of the third link is fixed to the pivot shaft, and the other end of the third link abuts against the wheel surface of the second cam. The drive mechanism drives the second cam to rotate.

9. The outer diameter adjustment mechanism for a spring machine according to claim 8, characterized in that: The third link is pivotally connected to a third roller at one end near the second cam, and the surface of the third roller abuts against the surface of the second cam.

10. The outer diameter adjustment mechanism of a spring machine according to any one of claims 1-9, characterized in that: It also includes a limiting block, which is fixedly mounted on the frame and located between the slides of the two sets of adjustment components.

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