Spring pitch adjusting device

Abstract

The utility model relates to a spring pitch adjusting device, which belongs to the field of spring production and processing and comprises a bottom plate, the top of the bottom plate is fixedly connected with a fixed pitch changing plate, and a fixing component is arranged in the fixed pitch changing plate; the fixing assembly comprises a motor, and the motor is fixedly connected to the outer surface of the fixed pitch changing plate. According to the spring pitch adjusting device, when a spring is subjected to pitch adjustment, a fixed check block placed on the outer surface of a limiting plate is clamped, a movable check block is inserted into the spring, a first hydraulic rod is started to drive the limiting plate to move towards one side of the spring for limiting, and then two motors are started to drive two threaded rods to rotate; under the condition of a guide block, a movable pitch-variable plate moves rightwards to drive a spring to conduct pitch adjustment, finally, a second hydraulic rod is started to drive a movable plate to move, a supporting block is plugged into the pitch in the spring, and therefore the effects that limiting is firmer and springback is not prone to occurring when the pitch is adjusted through the spring are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of spring production and processing, in particular to a spring pitch adjusting device. Background Art

[0002] A spring is a part made of elastic material that deforms under the action of external force and returns to its original shape after the external force is removed. The spring pitch is the axial distance between the corresponding points of two adjacent spring circles on the center diameter, excluding the supporting circle. In daily use, its elasticity can be used to control the movement of mechanical parts, alleviate impact or vibration, store energy, measure the size of force, etc. In the manufacturing process of compression springs, the pitch of the spring needs to be adjusted.

[0003] According to the spring pitch adjustment device of Chinese patent CN215762985U, the spring body can be installed first, and the two ends of the spring body can be placed on the second baffle plates on the first pitch variable plate and the second pitch variable plate respectively, so that the first baffle plate is inserted between the two circles at the end of the spring body, and then the nut is rotated by the grip block, and the second pitch variable plate is pushed to move by the nut to change the pitch. In addition, the second baffle plate connected to the compression spring can move up and down, so that it can be suitable for the fixation and pitch adjustment of springs of various specifications. In addition, when the second baffle plate moves up and down, the limit block can move in a straight line along the limit groove, which can effectively limit the second baffle plate and the compression spring to avoid skewing.

[0004] When the above-mentioned device adjusts the pitch of the spring, the two ends of the spring only rely on the elastic pressure of the compression spring to prompt the first pressure plate and the second pressure plate to compress the spring. During the process of adjusting the spring pitch, the spring is prone to loosening and falling off, resulting in interruption of the spring pitch adjustment work, which reduces the convenience of the device. Therefore, a spring pitch adjustment device is proposed to solve the above problem. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a spring pitch adjustment device, which has the advantages that the two ends of the spring are not likely to fall off during the adjustment process, thereby ensuring the smooth progress of the pitch adjustment work. It solves the problem that the existing spring pitch has poor stability after adjustment, and the two ends of the spring are prone to loosening and falling off, resulting in interruption of the pitch adjustment work.

[0006] To achieve the above object, the utility model provides the following technical solution: a spring pitch adjustment device, comprising a bottom plate, a fixed pitch plate is fixedly connected to the top of the bottom plate, and a fixed component is arranged inside the fixed pitch plate;

[0007] The fixed assembly includes a motor, which is fixedly connected to the outer surface of the fixed pitch variable plate, one end of the motor output shaft is fixedly connected to a threaded rod, the outer surface of the threaded rod is threadedly connected to the movable pitch variable plate, the bottom of the movable pitch variable plate is fixedly connected to a guide block, the interior of the fixed pitch variable plate is fixedly connected to a first hydraulic rod, the telescopic end of the first hydraulic rod is fixedly connected to a sleeve, the outer surface of the sleeve is fixedly connected to a limit plate, the outer surface of the limit plate is fixedly connected to a fixed stopper, and the interior of the limit plate is movably connected to a movable stopper.

[0008] Furthermore, a fixed plate is fixedly connected to the top of the base plate, a second hydraulic rod is fixedly connected to the outer surface of the fixed plate, a movable plate is fixedly connected to the outer surface of the second hydraulic rod, and a plurality of support blocks are fixedly connected to the outer surface of the movable plate.

[0009] Furthermore, a guide groove is provided inside the bottom plate, and the guide block is slidably connected to the bottom plate through the guide groove.

[0010] Furthermore, a limiting groove is provided inside the fixed pitch-changing plate, and the limiting plate slides inside the fixed pitch-changing plate through the limiting groove, and an auxiliary block is fixedly connected to the outer surface of the limiting plate.

[0011] Furthermore, a maintenance hole is opened inside the fixed pitch-variable plate, bolts are passed through the inside of the sleeve, and the sleeve is fixedly connected to the movable end of the first hydraulic rod through the bolts.

[0012] Furthermore, a spring is provided between the fixed pitch-changing plate and the movable pitch-changing plate, and both ends of the spring are clamped on the outer surface of the fixed stopper.

[0013] Furthermore, a movable through hole is provided inside the limiting plate, and the movable stopper slides inside the limiting plate through the movable through hole.

[0014] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0015] 1. The spring pitch adjustment device, when the spring is adjusting its pitch, a fixed stopper is placed on the outer surface of the limit plate for clamping, and a movable stopper is inserted into the inside of the spring, the first hydraulic rod is started to drive the limit plate to move to one side of the spring for limiting, and then the two motors are started to drive the two threaded rods to rotate, and the movable pitch plate is moved to the right under the guide block to drive the spring to adjust its pitch, and finally the second hydraulic rod is started to drive the movable plate to move, and the stretching block is inserted into the pitch inside the spring, so that the spring is more firmly limited when adjusting the pitch and is not prone to rebound.

[0016] 2. The spring pitch adjustment device drives the limit plate to move by setting a first hydraulic rod, and cooperates with the use of a fixed stopper and a movable stopper. When the spring is adjusted in pitch, the stability is better, and the spring is prevented from falling off during the adjustment process as much as possible, and the practicality is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the main cross-sectional view of the structure of the utility model;

[0018] Figure 2 This is a side view of the structure of the utility model;

[0019] Figure 3 It is a three-dimensional diagram of the movable pitch-changing plate of the utility model structure.

[0020] In the figure: 1. base plate; 2. fixed pitch plate; 3. motor; 4. threaded rod; 5. movable pitch plate; 6. guide block; 7. first hydraulic rod; 8. sleeve; 9. bolt; 10. limit plate; 11. fixed stop block; 12. movable stop block; 13. spring; 14. fixed plate; 15. second hydraulic rod; 16. movable plate; 17. limit groove; 18. maintenance hole. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-3 The spring pitch adjustment device in this embodiment includes a base plate 1, a fixed plate 14 is fixedly connected to the top of the base plate 1, a second hydraulic rod 15 is fixedly connected to the outer surface of the fixed plate 14, a movable plate 16 is fixedly connected to the outer surface of the second hydraulic rod 15, and a plurality of support blocks are fixedly connected to the outer surface of the movable plate 16.

[0023] A fixed pitch plate 2 is fixedly connected to the top of the base plate 1, and a fixed component is arranged inside the fixed pitch plate 2; the fixed component includes a motor 3, which is fixedly connected to the outer surface of the fixed pitch plate 2, and one end of the output shaft of the motor 3 is fixedly connected to a threaded rod 4, and the outer surface of the threaded rod 4 is threadedly connected to a movable pitch plate 5, and the bottom of the movable pitch plate 5 is fixedly connected to a guide block 6, and a guide groove is opened inside the base plate 1, and the guide block 6 is slidably connected to the base plate 1 through the guide groove.

[0024] A first hydraulic rod 7 is fixedly connected to the interior of the fixed pitch variable plate 2, and a sleeve 8 is fixedly connected to the telescopic end of the first hydraulic rod 7. A maintenance hole 18 is opened inside the fixed pitch variable plate 2, and a bolt 9 is passed through the interior of the sleeve 8. The sleeve 8 is fixedly connected to the movable end of the first hydraulic rod 7 through the bolt 9.

[0025] The outer surface of the sleeve 8 is fixedly connected to a limit plate 10 , a limit groove 17 is provided inside the fixed pitch plate 2 , the limit plate 10 slides inside the fixed pitch plate 2 through the limit groove 17 , and the outer surface of the limit plate 10 is fixedly connected to an auxiliary block.

[0026] A fixed stopper 11 is fixedly connected to the outer surface of the limiting plate 10 , and a movable stopper 12 is movably connected to the inside of the limiting plate 10 . A movable through hole is opened inside the limiting plate 10 , and the movable stopper 12 slides inside the limiting plate 10 through the movable through hole.

[0027] In this embodiment, by setting the first hydraulic rod 7 to drive the limit plate 10 to move, and cooperating with the use of the fixed stop block 11 and the movable stop block 12, the spring 13 has better stability when adjusting the pitch, and the spring 13 is prevented from falling off during the adjustment process, which is more practical.

[0028] In this embodiment, the sleeve 8 connected to the limit plate 10 is fixedly connected via the bolt 9 to ensure that the limit plate 10 can be replaced when adapting to springs 13 of different sizes. The disassembly wrench enters from the maintenance hole 18 to loosen and replace the bolt 9, so that subsequent work can proceed smoothly.

[0029] In this embodiment,

[0030] The working principle of the above embodiment is:

[0031] The spring pitch adjustment device, when the spring 13 is adjusting the pitch, the fixed stopper 11 placed on the outer surface of the limit plate 10 is engaged, and the movable stopper 12 is inserted into the inside of the spring 13, the first hydraulic rod 7 is started to drive the limit plate 10 to move to one side of the spring 13 for limiting, and then the two motors 3 are started to drive the two threaded rods 4 to rotate, and the movable pitch plate 5 is moved to the right under the guide block 6 to drive the spring 13 to adjust the pitch, and finally the second hydraulic rod 14 is started to drive the movable plate 16 to move, and the stretching block is inserted into the pitch inside the spring 13, so that the spring 13 is more firmly limited when adjusting the pitch and is not prone to rebound.

[0032] It should be noted that the standard parts used in the application can be purchased from the market, special-shaped parts can be customized according to the description in the specification and drawings, and the specific connection methods of each part adopt mature bolts, rivets, welding, etc. in the prior art, and conventional means. Machinery, parts and equipment all adopt conventional models in the prior art; plus the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spring pitch adjustment device, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly connected to a fixed pitch-changing plate (2), and a fixed component is arranged inside the fixed pitch-changing plate (2); The fixed assembly comprises a motor (3), the motor (3) being fixedly connected to the outer surface of a fixed pitch-changing plate (2), one end of an output shaft of the motor (3) being fixedly connected to a threaded rod (4), the outer surface of the threaded rod (4) being threadedly connected to a movable pitch-changing plate (5), the bottom of the movable pitch-changing plate (5) being fixedly connected to a guide block (6), the interior of the fixed pitch-changing plate (2) being fixedly connected to a first hydraulic rod (7), the telescopic end of the first hydraulic rod (7) being fixedly connected to a sleeve (8), the outer surface of the sleeve (8) being fixedly connected to a limit plate (10), the outer surface of the limit plate (10) being fixedly connected to a fixed stopper (11), and the interior of the limit plate (10) being movably connected to a movable stopper (12).

2. The spring pitch adjustment device according to claim 1, characterized in that: A fixed plate (14) is fixedly connected to the top of the base plate (1), a second hydraulic rod (15) is fixedly connected to the outer surface of the fixed plate (14), a movable plate (16) is fixedly connected to the outer surface of the second hydraulic rod (15), and a plurality of support blocks are fixedly connected to the outer surface of the movable plate (16).

3. The spring pitch adjustment device according to claim 1, characterized in that: A guide groove is provided inside the bottom plate (1), and the guide block (6) is slidably connected to the bottom plate (1) via the guide groove.

4. The spring pitch adjustment device according to claim 1, characterized in that: A limiting groove (17) is provided inside the fixed pitch-changing plate (2), the limiting plate (10) slides inside the fixed pitch-changing plate (2) through the limiting groove (17), and an auxiliary block is fixedly connected to the outer surface of the limiting plate (10).

5. The spring pitch adjustment device according to claim 1, characterized in that: A maintenance hole (18) is provided inside the fixed pitch plate (2), a bolt (9) is passed through the inside of the sleeve (8), and the sleeve (8) is fixedly connected to the movable end of the first hydraulic rod (7) via the bolt (9).

6. The spring pitch adjustment device according to claim 1, characterized in that: A spring (13) is provided between the fixed pitch-changing plate (2) and the movable pitch-changing plate (5), and both ends of the spring (13) are clamped on the outer surface of the fixed stopper (11).

7. The spring pitch adjustment device according to claim 1, characterized in that: A movable through hole is provided inside the limiting plate (10), and the movable stopper (12) slides inside the limiting plate (10) through the movable through hole.

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