A spring-loaded compression and shaping device for precise free height correction

Abstract

This invention discloses a spring compression and shaping and free height precision correction device. The invention relates to the field of spring processing technology and includes a base and a guide column. An upper pressure plate is installed at the top of the guide column, and a lower pressure plate is slidably sleeved on the outer wall of the guide column. Positioning seats are bolted to the bottom of the upper pressure plate and the top groove of the lower pressure plate. The advantages of this invention are: it integrates the spring compression and shaping and height correction processes on the same fixture, reducing errors caused by secondary clamping; the limiting structure composed of the scale rod and the limiting stop can accurately set the height after compression, and with the help of a displacement sensor, it can monitor the compression amount in real time, preventing over-compression damage to the spring and achieving automatic height precision correction; spring positioning components are installed around the positioning seats, and the clamping diameter formed by multiple positioning components can be changed by adjusting the screw, allowing one set of fixtures to adapt to the processing of springs with various diameters.

Description

Technical Field

[0001] This invention relates to the field of spring processing technology, specifically to a spring compression and shaping and free height precision correction device. Background Technology

[0002] In the spring production process, after the spring is wound and formed, it usually needs to be compressed and shaped to eliminate internal stress, and its degree of freedom is tested and corrected to ensure that its elastic performance and dimensional accuracy meet the requirements.

[0003] Existing spring processing devices separate the shaping and calibration processes, requiring multiple clamping operations, resulting in low efficiency and inconsistent positioning benchmarks, making it difficult to guarantee accuracy. In addition, the clamping mechanism lacks precise limit and measurement feedback, relying on operator experience, which leads to incomplete spring calibration. To address this, we propose a spring clamping and shaping device with precise free height calibration. Summary of the Invention

[0004] The purpose of this invention is to provide a spring-compression and shaping device for precise free height correction.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a spring-loaded clamping and shaping device for precise free height correction, comprising a base and a guide column, wherein an upper pressure plate is installed at the top of the guide column, and a lower pressure plate is slidably sleeved on the outer wall of the guide column; positioning seats are bolted to the bottom of the upper pressure plate and the top groove of the lower pressure plate; spring positioning components are installed in the circumferential direction of the positioning seats; a limit measuring component is installed at one end of the lower pressure plate, and the upper end of the limit measuring component extends out after passing through the upper pressure plate.

[0006] The upper and lower positioning seats each have a positioning groove on one side facing each other. The positioning grooves are equipped with positioning elements that can be adjusted in the circumferential direction. The positioning elements around the perimeter are used to limit the springs.

[0007] The limiting measurement component includes a ruler rod, and a limiting stop is slidably sleeved on the outer wall of the ruler rod. The limiting stop is located below the upper pressure plate and is used to contact the lower surface of the upper pressure plate to limit the upward pressing stroke of the lower pressure plate.

[0008] As a further aspect of the present invention: a hydraulic cylinder is installed at the bottom of the base, and the output end of the hydraulic cylinder is connected to the lower surface of the lower pressure plate.

[0009] As a further aspect of the present invention: the spring positioning assembly includes a mounting plate, which is fixedly connected to the circumferential direction of the positioning groove. Each mounting plate is threaded with a screw, one end of which is movably connected to the positioning element.

[0010] As a further aspect of the present invention: the bottom side of the inside of the positioning groove is flush with the starting scale line below the ruler rod.

[0011] As a further aspect of the present invention: the scale rod is provided with graduation lines along its axis for intuitive reading of the set height.

[0012] As a further embodiment of the present invention: the scale rod is axially arranged with adjustment holes, a cylinder is fixedly connected to one outer surface of the limiting stop, a fixed rod is provided through the cylinder, the fixed rod passes through one side of the limiting stop and the adjustment hole, and extends into the limiting stop on the other side, a limiting ring is fixedly connected to the outer wall of the fixed rod near the middle, and the outer wall of the limiting ring is slidably connected to the inner wall of the cylinder.

[0013] As a further aspect of the present invention: a displacement sensor is installed on the lower surface of the upper pressure plate for real-time feedback of the compression displacement.

[0014] Compared with the prior art, the beneficial effects of the present invention by adopting the above technical solution are as follows:

[0015] 1. This invention integrates the spring compression and height correction processes on the same tooling, reducing errors caused by secondary clamping. The limiting structure composed of the scale rod and the limiting stop can accurately set the height after compression, and with the help of the displacement sensor, it can monitor the compression amount in real time, prevent the spring from being over-compressed and damaged, and achieve accurate automatic height correction.

[0016] 2. This invention installs spring positioning components around the positioning seat and adjusts the screw to change the clamping diameter formed by multiple positioning components, so that one set of tooling can adapt to the processing of springs with different diameter specifications, avoids deviation during spring compression, is stable and reliable, and ensures the consistency of batch processing.

[0017] Other advantages, objectives and features of the invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be learned from the practice of the invention. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the interior of an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the spring positioning assembly in an embodiment of the present invention;

[0021] Figure 4 This is a partial cross-sectional schematic diagram of the limiting measurement component in an embodiment of the present invention;

[0022] Figure 5This is a schematic diagram of the fixed rod detaching from the scale rod in an embodiment of the present invention.

[0023] In the diagram: 1. Base; 2. Guide column; 3. Upper pressure plate; 4. Lower pressure plate; 5. Positioning seat; 51. Positioning groove; 6. Spring positioning assembly; 61. Mounting plate; 62. Screw; 63. Positioning component; 7. Limit measuring assembly; 71. Scale rod; 72. Adjustment hole; 73. Limit stop; 74. Cylinder; 75. Fixing rod; 76. Limit ring; 8. Hydraulic cylinder. Detailed Implementation

[0024] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0025] Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0026] Please see the appendix Figure 1 - Appendix Figure 5 The present invention discloses a spring-pressed shaping and free height precision correction device, comprising a base 1 and a guide column 2. An upper pressure plate 3 is installed at the top of the guide column 2, and a lower pressure plate 4 is slidably sleeved on the outer wall of the guide column 2. Positioning seats 5 are bolted to the bottom of the upper pressure plate 3 and the top groove of the lower pressure plate 4. Spring positioning components 6 are installed in the circumferential direction of the positioning seats 5. A limit measuring component 7 is installed at one end of the lower pressure plate 4. The upper end of the limit measuring component 7 extends out after passing through the upper pressure plate 3. A hydraulic cylinder 8 is installed at the bottom of the base 1, and the output end of the hydraulic cylinder 8 is connected to the lower surface of the lower pressure plate 4.

[0027] In the first embodiment, a positioning groove 51 is provided on one side of each of the upper and lower positioning seats 5 facing each other. The positioning groove 51 is provided with a positioning element 63 in an adjustable circumferential direction. The positioning elements 63 around the perimeter are used to limit the spring.

[0028] Specifically, the spring positioning assembly 6 includes a mounting plate 61, which is fixedly connected to the positioning groove 51 in the circumferential direction. Each mounting plate 61 is threaded with a screw 62, one end of which is movably connected to the positioning member 63.

[0029] In this embodiment, the upper and lower screws 62 are rotated according to the diameter of the spring, causing the positioning member 63 to move. By adjusting the clamping diameter formed by multiple positioning members 63, it is possible to adapt to the processing of springs with different diameters and avoid deviation during the spring compression process.

[0030] In embodiment 2, the limiting measurement component 7 includes a scale rod 71, and a limiting stop 73 is slidably sleeved on the outer wall of the scale rod 71. The limiting stop 73 is located below the upper pressure plate 3 and is used to contact the lower surface of the upper pressure plate 3 to limit the upper pressure stroke of the lower pressure plate 4.

[0031] In this embodiment, by activating the hydraulic cylinder 8, the lower pressure plate 4 rises and the spring is compressed. When the limit stop 73 contacts the lower surface of the upper pressure plate 3, the lower pressure plate 4 cannot continue to rise. At this time, the spring is compressed to a preset height. The displacement sensor monitors the displacement data, and the operator can confirm whether the compression amount meets the process requirements. The pressure is maintained for a period of time to complete the shaping.

[0032] Specifically, the scale rod 71 is axially set with scale lines for intuitive reading of the set height, and the bottom side of the positioning groove 51 is flush with the starting scale line below the scale rod 71;

[0033] Specifically, the scale rod 71 has an adjustment hole 72 arranged axially, and a cylinder 74 is fixedly connected to one side of the outer surface of the limiting stop 73. A fixing rod 75 is inserted through the cylinder 74. The fixing rod 75 passes through one side of the limiting stop 73 and the adjustment hole 72, and extends into the limiting stop 73 on the other side. A limiting ring 76 is fixedly connected to the outer wall of the fixing rod 75 near the middle. The outer wall of the limiting ring 76 is slidably connected to the inner wall of the cylinder 74.

[0034] In this embodiment, according to the required shaping height of the spring, the limiting stop 73 is slid on the scale rod 71 until it reaches the position on the corresponding scale line. Then, the fixing rod 75 can be pushed to lock the limiting stop 73. By adjusting the position of the limiting stop 73 on the scale rod 71, the stroke of the lower pressure plate 4 can be quickly changed to adapt to the spring processing requirements of different free heights and compression amounts, thus enhancing versatility.

[0035] Specifically, a displacement sensor is installed on the lower surface of the upper pressure plate 3 to provide real-time feedback on the compression displacement. The displacement sensor is electrically connected to the external control system.

[0036] Working principle:

[0037] First, place the spring in the center on the positioning groove 51 on the lower positioning seat 5. Rotate the upper and lower screws 62 according to the diameter of the spring to move the positioning part 63 until the positioning part 63 contacts the spring.

[0038] Start hydraulic cylinder 8, lower pressure plate 4 rises, spring is compressed. When limit stop 73 contacts the lower surface of upper pressure plate 3, lower pressure plate 4 can no longer rise. At this time, spring is compressed to the preset height. Displacement sensor monitors displacement data. Operator can confirm whether the compression amount meets the process requirements. After maintaining pressure for a period of time to complete the shaping, hydraulic cylinder 8 retracts, spring is removed to complete the correction. Thus, the entire process ends.

[0039] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on.

[0040] In the description of this invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this invention.

[0041] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0042] For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and these variations still fall within the protection scope of the present invention.

Claims

1. A spring-loaded, shape-setting, and free-height precision correction device, comprising a base (1) and a guide column (2), characterized in that: The top of the guide column (2) is equipped with an upper pressure plate (3), and the outer wall of the guide column (2) is slidably fitted with a lower pressure plate (4). The bottom of the upper pressure plate (3) and the top groove of the lower pressure plate (4) are bolted with positioning seats (5). The positioning seats (5) are equipped with spring positioning components (6) in the circumferential direction. One end of the lower pressure plate (4) is equipped with a limit measuring component (7). The upper end of the limit measuring component (7) extends out after passing through the upper pressure plate (3). The two positioning seats (5) are provided with positioning grooves (51) on opposite sides. The positioning grooves (51) are provided with positioning elements (63) in an adjustable manner in the circumferential direction. The positioning elements (63) around the perimeter are used to limit the springs. The limiting measurement component (7) includes a scale rod (71), and a limiting stop (73) is slidably sleeved on the outer wall of the scale rod (71). The limiting stop (73) is located below the upper pressure plate (3) and is used to contact the lower surface of the upper pressure plate (3) to limit the upper pressure stroke of the lower pressure plate (4).

2. The spring-compression shaping and free height precision correction device according to claim 1, characterized in that: A hydraulic cylinder (8) is installed at the bottom of the base (1), and the output end of the hydraulic cylinder (8) is connected to the lower surface of the lower pressure plate (4).

3. The spring-compression shaping and free height precision correction device according to claim 1, characterized in that: The spring positioning assembly (6) includes a mounting plate (61), which is fixedly connected to the circumferential direction of the positioning groove (51). Each mounting plate (61) is threaded with a screw (62), and one end of the screw (62) is movably connected to the positioning member (63).

4. The spring-compression shaping and free height precision correction device according to claim 1, characterized in that: The bottom side of the positioning groove (51) is flush with the starting scale line below the ruler rod (71).

5. The spring-compression shaping and free height precision correction device according to claim 1, characterized in that: The ruler rod (71) is provided with scale lines along its axis for visually reading the set height.

6. The spring-compression shaping and free height precision correction device according to claim 1, characterized in that: The scale rod (71) is axially arranged with adjustment holes (72). A cylinder (74) is fixedly connected to one side of the outer surface of the limiting stop (73). A fixing rod (75) is provided inside the cylinder (74). The fixing rod (75) passes through one side of the limiting stop (73) and the adjustment hole (72) and extends into the limiting stop (73) on the other side. A limiting ring (76) is fixedly connected to the outer wall of the middle part of the fixing rod (75). The outer wall of the limiting ring (76) is slidably connected to the inner wall of the cylinder (74).

7. The spring-compression shaping and free height precision correction device according to claim 1, characterized in that: A displacement sensor is installed on the lower surface of the upper pressure plate (3) for real-time feedback of the compression displacement.

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