Cutting-off structure for torsional spring machining

Abstract

The utility model relates to the technical field of torsional spring machining, and discloses a torsional spring machining cutting structure which comprises a machining head, working grooves are formed in the left inner wall and the right inner wall of the machining head, movable sleeve plates are movably installed on the inner surfaces of the working grooves, and cutting blades are movably inserted into the inner surfaces of the movable sleeve plates. Hydraulic driving devices are fixedly mounted on the left surface and the right surface of the machining head correspondingly, a limiting rod is movably inserted into the lower surface of the movable sleeve plate, a pulling plate is fixedly connected to the lower surface of the limiting rod, a spring is fixedly connected between the upper surface of the pulling plate and the lower surface of the movable sleeve plate, and a limiting groove is formed in the lower surface of the cutting blade. In the actual use process, the cutter blade is rapidly installed in the movable sleeve plate through cooperation of the limiting rod, the pulling plate, the spring and the limiting groove, the movable sleeve plate is fixed to the hydraulic driving device, the single cutter blade is rapidly replaced, the replacement speed of the cutter blade is increased, and operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of torsion spring processing, in particular to a torsion spring processing and cutting structure. Background Art

[0002] Torsion springs are helical springs. The ends of a torsion spring are fixed to other components. When the other components rotate around the center of the spring, the spring pulls them back to their original position, generating torque or rotational force. During the torsion spring production process, the ends of the torsion spring need to be cut off.

[0003] Existing torsion spring cutting devices usually use cutting blades to squeeze and cut the torsion spring ends. However, the cutting blades in the cutting device are easily worn after long-term use. The cutting blades and the cutting device are generally fixed to the hydraulic drive device body by bolts, which makes replacement more complicated.

[0004] For this purpose, we propose a torsion spring processing and cutting structure. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the utility model provides a torsion spring processing and cutting structure, which overcomes the shortcomings of the prior art and solves the problem that in the background technology, the existing torsion spring cutting device usually uses a cutting blade to extrude and cut the torsion spring end, but the cutting blade in the cutting device is prone to wear after long-term use, and the cutting blade and the cutting device are generally fixed to the hydraulic drive device body by bolts, which makes replacement more cumbersome.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a torsion spring processing and cutting structure, comprising a processing head, the left and right inner walls of the processing head are both provided with working grooves, the inner surface of the working groove is movably mounted with a movable sleeve plate, the inner surface of the movable sleeve plate is movably inserted with a cutting blade, the left and right surfaces of the processing head are both fixedly mounted with hydraulic drive devices, the lower surface of the movable sleeve plate is movably inserted with a limit rod, the lower surface of the limit rod is fixedly connected with a pull plate, a spring is fixedly connected between the upper surface of the pull plate and the lower surface of the movable sleeve plate, and the lower surface of the cutting blade is provided with a limit groove.

[0009] Preferably, two slide plates are fixedly connected to the front and rear surfaces of the movable sleeve plate, and two slide grooves are provided on the front and rear inner walls of the working groove.

[0010] Preferably, the output end of the hydraulic drive device is fixedly connected to a side of the movable sleeve plate away from the center of the processing head.

[0011] Preferably, the lower surface of the movable sleeve is provided with a slot hole which is slidably arranged corresponding to the limit rod.

[0012] Preferably, the spring is wound around the outer surface of the limiting rod, and the limiting rod and the limiting groove are correspondingly engaged.

[0013] Preferably, the two slide plates are slidably arranged corresponding to the two slide grooves.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a torsion spring processing and cutting structure, which has the following

[0016] Beneficial effects:

[0017] 1. The torsion spring processing and cutting structure can quickly install the cutting blade in the movable sleeve through the cooperation between the limit rod, the pull plate, the spring and the limit groove during actual use. The movable sleeve is fixed on the hydraulic drive device to quickly replace the single cutting blade, thereby improving the replacement speed of the cutting blade and facilitating operation.

[0018] 2. The torsion spring processing and cutting structure can also make the movement between the two movable sleeves horizontally and stably through the cooperation between the slide plate and the slide groove, thereby improving the stability and safety of cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the interior of the processing head and its related structures of the utility model;

[0021] Figure 3 It is a three-dimensional structural schematic diagram of the interior of the movable sleeve plate and its related structures of the utility model.

[0022] In the figure: 1. Processing head; 2. Working groove; 3. Moving sleeve; 4. Cutting blade; 5. Hydraulic drive device; 6. Limit rod; 7. Pull plate; 8. Spring; 9. Limit groove; 10. Slide plate; 11. Slide groove. DETAILED DESCRIPTION

[0023] 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.

[0024] Embodiment 1

[0025] See also Figure 1-Figure 3 A torsion spring processing and cutting structure comprises a processing head 1, the left and right inner walls of the processing head 1 are both provided with working grooves 2, the inner surface of the working groove 2 is movably installed with a movable sleeve plate 3, the inner surface of the movable sleeve plate 3 is movably inserted with a cutting blade 4, the left and right surfaces of the processing head 1 are both fixedly installed with a hydraulic driving device 5, the lower surface of the movable sleeve plate 3 is movably inserted with a limiting rod 6, the lower surface of the limiting rod 6 is fixedly connected with a pulling plate 7, a spring 8 is fixedly connected between the upper surface of the pulling plate 7 and the lower surface of the movable sleeve plate 3, and a limiting groove 9 is provided on the lower surface of the cutting blade 4. The cutting blade 4 is quickly installed in the movable sleeve plate 3 through the cooperation between the limiting rod 6, the pulling plate 7, the spring 8 and the limiting groove 9. By fixing the movable sleeve plate 3 on the hydraulic driving device 5, the single cutting blade 4 is quickly replaced, the replacement speed of the cutting blade 4 is improved, and the operation is convenient.

[0026] In this embodiment, the output end of the hydraulic drive device 5 is fixedly connected to a surface of the movable sleeve plate 3 away from the center of the processing head 1 .

[0027] Specifically, the hydraulic drive devices 5 on both sides of the processing head 1 push the cutting blades 4 in the two movable sleeve plates 3 to approach each other, thereby cutting off the middle torsion spring end.

[0028] In this embodiment: a slot hole is provided on the lower surface of the movable sleeve plate 3 to be slidably arranged corresponding to the limit rod 6 .

[0029] Specifically, the limiting rod 6 can move horizontally on the movable sleeve plate 3 through the slot.

[0030] In this embodiment: the spring 8 is wound around the outer surface of the limiting rod 6, and the limiting rod 6 and the limiting groove 9 are correspondingly engaged.

[0031] Specifically, the spring 8 can be stretched in cooperation with the pull plate 7 and the movable sleeve plate 3 as the limiting rod 6 moves, so that the spring 8 cooperates with the spring 8 to clamp and limit the limiting rod 6 and the limiting groove 9.

[0032] Working principle: When working, the part of the torsion spring that needs to be cut is placed in the center of the processing head 1, and then the hydraulic drive devices 5 on both sides push the movable sleeve 3 to move in the working groove 2 to approach each other, so that the internal cutting blade 4 is close to the surface of the torsion spring to perform the cutting work, and then the movable sleeve 3 and the cutting blade 4 are reset. Since the cutting blade 4 has been cutting for a long time and the surface is worn and needs to be replaced, the pull plate 7 on the movable sleeve 3 is pulled to drive the limit rod 6 to move downward, and then the limit rod 6 is moved horizontally through the slot hole, and the spring 8 is stretched at the same time to make the limit rod 6 disengage from the limit groove 9 on the cutting blade 4, so that the cutting blade 4 can be removed from the movable sleeve 3. After taking it out and then putting in a new cutting blade 4, release the pull plate 7, and the elastic force of the spring 8 drives the pull plate 7 and the limit rod 6 to move upward and reset, and the limit rod 6 moves horizontally upward through the slot on the movable sleeve plate 3 and enters the limit groove 9 on the cutting blade 4, and the limit groove 9 is clamped by the limit rod 6, so that the cutting blade 4 is limited and installed in the movable sleeve plate 3, and the cutting blade 4 is quickly installed in the movable sleeve plate 3 through the cooperation between the limit rod 6, the pull plate 7, the spring 8 and the limit groove 9, and the movable sleeve plate 3 is fixed on the hydraulic drive device 5, The single cutting blade 4 is quickly replaced, the replacement speed of the cutting blade 4 is improved, and the operation is convenient.

[0033] Embodiment 2

[0034] See also Figure 2 Based on the first embodiment, the present invention provides a technical solution:

[0035] In this embodiment: two slide plates 10 are fixedly connected to the front and rear surfaces of the movable sleeve plate 3, and two slide grooves 11 are provided on the front and rear inner walls of the working groove 2. The two slide plates 10 and the two slide grooves 11 are slidingly arranged correspondingly. Through the cooperation between the slide plates 10 and the slide grooves 11, the movement between the two movable sleeve plates 3 is carried out horizontally and stably, thereby improving the stability and safety of cutting.

[0036] Working principle: When the processing head 1 cuts the torsion spring, the hydraulic drive device 5 pushes the movable sleeve 3 to move in the working groove 2. At the same time, the movable sleeve 3 cooperates with the slide groove 11 in the working groove 2 through the slide plates 10 on the front and rear sides to perform horizontal limited movement to perform support work, thereby improving the movement stability of the movable sleeve 3 and ensuring the stable installation of the cutting work.

[0037] 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 torsion spring processing and cutting structure, comprising a processing head (1), characterized in that: The left and right inner walls of the processing head (1) are both provided with working grooves (2), the inner surface of the working groove (2) is movably mounted with a movable sleeve (3), the inner surface of the movable sleeve (3) is movably inserted with a cutting blade (4), the left and right surfaces of the processing head (1) are both fixedly mounted with hydraulic drive devices (5), the lower surface of the movable sleeve (3) is movably inserted with a limiting rod (6), the lower surface of the limiting rod (6) is fixedly connected with a pulling plate (7), the upper surface of the pulling plate (7) and the lower surface of the movable sleeve (3) are fixedly connected with a spring (8), and the lower surface of the cutting blade (4) is provided with a limiting groove (9).

2. A torsion spring processing and cutting structure according to claim 1, characterized in that: Two slide plates (10) are fixedly connected to the front and rear surfaces of the movable sleeve plate (3), and two slide grooves (11) are provided on the front and rear inner walls of the working groove (2).

3. The torsion spring processing and cutting structure according to claim 1, characterized in that: The output end of the hydraulic drive device (5) is fixedly connected to a side of the movable sleeve plate (3) away from the center of the processing head (1).

4. The torsion spring processing and cutting structure according to claim 1, characterized in that: The lower surface of the movable sleeve plate (3) is provided with a slot hole which is slidably arranged corresponding to the limiting rod (6).

5. The torsion spring processing and cutting structure according to claim 1, characterized in that: The spring (8) is wound around the outer surface of the limiting rod (6), and the limiting rod (6) and the limiting groove (9) are correspondingly engaged.

6. A torsion spring processing and cutting structure according to claim 2, characterized in that: The two slide plates (10) and the two slide grooves (11) are arranged to slide correspondingly.

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