Shearing device of spring manufacturing machine

Abstract

A shearing device of a spring manufacturing machine comprises a base, a fixed cutting board is arranged on the base so as to be in pivot joint with a movable cutting board, a shearing part is formed at the front end, the shearing part is composed of a fixed notch and a movable notch which are mutually sheared, and an ejector block and a cutter block are arranged in the fixed notch and the movable notch respectively; an inclined guide groove is formed behind the movable cutting board, a limiting sliding pin is arranged in the inclined guide groove so that the inclined guide groove can be fixed to a sliding platform, the bottom of the inclined guide groove corresponds to a linear sliding rail, and the linear sliding rail is fixed to the base; and the actuating group is fixedly arranged behind the base and provides power for the sliding platform to linearly move back and forth through an actuating rod. The device is simple in overall combination, the size of equipment can be greatly reduced, the weight of the equipment can be greatly reduced, various spring machines can be conveniently hung and applied, stable cutting force is provided, springs can be effectively closed and cut short in the manufacturing process, secondary machining is not needed, and the practical purposes of reducing cost and effectively improving production efficiency are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring production appliance's technical field, especially a kind of spring manufacturing machine shearing device. BACKGROUND

[0002] Spring is an indispensable important mechanical element, its main function is to store and release energy, provide elastic support, and provide buffer and stability between moving parts, widely used in modern industry, such as automobile, aviation, electronic products, and mechanical equipment in various fields.

[0003] Spring machine is a kind of mechanical equipment specially used for producing various springs, mainly including: main machine, feeding device, forming mechanism and shearing device. Although the existing spring machine has made significant progress in design, there are still some deficiencies in the design of shearing device.

[0004] Known patent M404744 spring machine shearing device, mainly by motor, speed reducer drive screw rotation, make slider along screw linear movement, use the inclined guide slot on slider and connecting rod design, make movable cutter group and fixed cutter group relative motion, so as to realize shearing action, thus, hope to reduce the wear of cutter group, and provide enough cutting force to cut off the wire of connecting spring.

[0005] But its structure is complex, there are many parts, the manufacturing cost is high and the volume is large and heavy, which is not conducive to installation and use on the spring machine with limited space, especially the shearing part cannot be arranged closer to the wire outlet, so that the spring manufacturing cannot be effectively shortened, and manual cutting is required for secondary processing, resulting in low production efficiency and high cost. UTILITY MODEL CONTENTS

[0006] Therefore, the main purpose of the utility model is to provide a spring manufacturing machine shearing device, comprising:

[0007] A base is provided with a fixed blade and a movable blade, a pivot is arranged between the fixed blade and the movable blade, and the two ends of the pivot are formed into a shearing part and a shearing pushing part, wherein

[0008] The shearing part is arranged at the front end of the fixed blade and the movable blade, and is composed of two mutually shearing fixed notches and movable notches, and a top block and a cutter block are respectively arranged in the fixed notch and the movable notch.

[0009] The shearing pushing part is arranged at the rear end of the fixed blade and the movable blade, an inclined guide slot is arranged behind the movable blade, a limiting sliding pin is arranged in the inclined guide slot, the other end of the limiting sliding pin is locked in front of a sliding platform, a linear slide rail is arranged below the sliding platform, and the linear slide rail is fixed on the base behind the fixed blade.

[0010] An actuating group is arranged at the rear of the base, which has an actuating rod connected to the rear of the sliding platform to provide power for the linear movement of the sliding platform.

[0011] In a preferred embodiment, the actuating group and the actuating rod are composed of the cylinder shaft driven by the air cylinder or the oil cylinder, but the actual application is not limited thereto.

[0012] In a preferred embodiment, a first group of stop surfaces is arranged between the fixed recess and the cutter block arranged therein, a third group of stop surfaces is arranged between the top block connected to the other side of the cutter block and the top block, and the other side of the top block is in close contact with the other side of the fixed recess. Similarly, a second group of stop surfaces is arranged between the movable recess and the cutter block arranged therein, a fourth group of stop surfaces is arranged between the top block connected to the other side of the cutter block and the top block, and the other side of the top block is in close contact with the other side of the movable recess. When the cutting edges of the two cutter blocks are sheared against each other, they will not deviate outwardly to cause misalignment, thereby ensuring good shearing effect.

[0013] Compared with the prior art, the spring manufacturing machine shearing device has the advantages of simple overall structure design, good practicability, greatly reduced equipment volume and weight, large installation avoidance space, close proximity to the wire outlet position, convenient spring machine assembly application, stable cutting force, no outward deviation of the movable cutter plate and the cutter block during shearing, good shearing effect, and the greatest advantage is that the spring manufacturing can be effectively shortened at the end without the need for secondary processing, thereby achieving the practical purposes of reducing cost and effectively improving production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a perspective exploded view of the utility model.

[0015] Figure 2 It is a perspective assembled view of the utility model.

[0016] Figure 3 It is a top view of a partial exploded view of the utility model.

[0017] Figure 4 It is a top view of a partial exploded view of the utility model.

[0018] Figure 5 It is a top view of an assembled view of the utility model.

[0019] Figure 6 It is a top view of a pivot connection of the utility model.

[0020] Figure 7 It is a side view of a pivot connection of the utility model.

[0021] Explanation of symbols:

[0022] 100 spring manufacturing machine shearing device

[0023] 10 base

[0024] 11 fixed blade

[0025] 115 pivot hole

[0026] 116 threaded hole

[0027] 117 countersunk screw

[0028] 12 movable blade

[0029] 123 inclined guide groove

[0030] 125 touch switch

[0031] 130 cover

[0032] 15 pivot shaft

[0033] 151 V-shaped groove

[0034] 16 gasket

[0035] 17 ball bushing

[0036] 20 shearing part

[0037] 21 fixed notch

[0038] 22 movable notch

[0039] 231, 232 top block

[0040] 233 stop block

[0041] 241, 242 cutter block

[0042] 251, 252, 253, 254 stop slope

[0043] 261, 262, front locking screw

[0044] 271, 272 side locking screw

[0045] 30 shearing pushing part

[0046] 31 limit slide pin

[0047] 32 sliding platform

[0048] 33 linear slide rail

[0049] 40 actuating group

[0050] 41 actuating rod. DETAILED DESCRIPTION

[0051] For the convenience of understanding the content of the utility model and the effects that can be achieved, specific embodiments are listed with reference to the drawings, and are described in detail as follows: Please refer to Figures 1 to 5 The spring manufacturing machine shearing device 100 of the utility model comprises:

[0052] A base 10 is provided with a fixed blade plate 11 and a movable blade plate 12, a pivot 15 is arranged between the fixed blade plate 11 and the movable blade plate 12, the two ends of the pivot 15 are pivotally connected to form a shearing part 20 and a shearing pushing part 30, wherein

[0053] The shearing part 20 is arranged at the front end of the fixed blade plate 11 and the movable blade plate 12, and is composed of two mutually shearing fixed notches 21 and movable notches 22, a top block 231, 232 and a cutter block 241, 242 are respectively arranged in the fixed notches 21 and the movable notches 22;

[0054] The shearing pushing part 30 is arranged at the rear end of the fixed blade plate 11 and the movable blade plate 12, an inclined guide groove 123 is arranged behind the movable blade plate 12, a limiting sliding pin 31 is arranged in the inclined guide groove 123, the other end of the limiting sliding pin 31 is locked in front of a sliding platform 32, a linear sliding rail 33 is arranged below the sliding platform 32 in correspondence, the linear sliding rail 33 is fixedly arranged on the base 10 behind the fixed blade plate 11, and

[0055] An actuating group 40 is arranged behind the base 10, the actuating group 40 is provided with an actuating rod 41, the actuating rod 41 is connected to the rear of the sliding platform 32, and provides the power for the linear movement of the sliding platform 32.

[0056] In a preferred embodiment, a safety protective cover 130 can be arranged on the shearing pushing part 3, but the utility model is not limited thereto.

[0057] In a preferred embodiment, the actuating group 40 and the actuating rod 41 are composed of the cylinder shaft of a pneumatic cylinder or an oil pressure cylinder, but the utility model is not limited thereto.

[0058] In a preferred embodiment, a touch switch 125 is arranged on the rear side of the movable blade plate 12 in correspondence, and is fixedly arranged on the base 10 of the fixed blade plate 11, so as to touch and adjust the stroke distance, but the utility model is not limited thereto.

[0059] The utility model discloses a design emphasis lies in, integral structure combination is more simple, and effectively reduce friction, can greatly reduce the equipment volume and reduce weight, just utilize the pneumatic cylinder and cylinder axle of actuating group 40 can push, make the linear slide rail 33 of sliding platform 32 in fixed blade plate 11 before and after linear movement, in turn make the shearing action of left and right swing of the front end of movable blade plate 12 with inclined guide groove 123 that limit sliding pin 31 pushes.

[0060] In a preferred embodiment, as shown in Figures 3 to 5 Wherein the fixed recess 21 and the cutter block 241 set in it correspond to the first set of stop surfaces 251, and the top block 231 on the other side of the cutter block 241 corresponds to the third set of stop surfaces 253, and the other side of the top block 231 corresponds to the other side of the fixed recess 21; Similarly, the movable recess 22 and the cutter block 242 set in it correspond to the second set of stop surfaces 252, and the top block 232 on the other side of the cutter block 242 corresponds to the fourth set of stop surfaces 254, and the other side of the top block 232 corresponds to the other side of the movable recess 22, so that the cutting edges of the two cutter blocks 241 and 242 do not shift outward and cause misalignment when they are sheared against each other, ensuring good shearing effect.

[0061] In a preferred embodiment, as shown in Figures 2 to 5 Wherein the two top blocks 231 and 232 set in the fixed recess 21 and the movable recess 22 can each be further provided with a front locking screw 261 and 262 and a side locking screw 271 and 272, and a stop block 233 is additionally provided outside the top block 231 of the fixed recess 21.

[0062] Thus, the top blocks 231 and 232 on both sides of the fixed recess 21 and the movable recess 22 of the shearing part 20 can effectively support and stop the corresponding cutter blocks 241 and 242, so that the cutting edges of the two cutter blocks 241 and 242 can stably hold and accurately cut the spring wire during the shearing process, without causing the two cutter blocks 241 and 242 to shift and misalign due to the wire being too round and hard, resulting in the inability to shear.

[0063] In a preferred embodiment, as shown in Figure 1 , Figure 6 and Figure 7As shown, the pivot 15 is T-shaped, with a washer 16 and a ball bearing sleeve 17 fitted on the upper shaft portion, and a V-shaped groove 151 circumferentially formed on the lower diameter shaft portion; and the fixed blade plate 11 has a screw hole 116 on each of the four cut edges of the corresponding pivot hole 115, which are respectively provided through the two sides of the fixed blade plate 11 for four countersunk screws 117 to be locked in.

[0064] Therefore, by utilizing the V-shaped groove 151 provided under the T-shaped pivot 15, two countersunk screws 117 can be locked into each of the four cutting edges by the fixed blade plate 11 on both sides, which can effectively fix and limit the T-shaped pivot 15 inward, so that the movable blade plate 12 and the fixed blade plate 11 will not loosen and shift outward during mutual shearing, thus ensuring good shearing function.

[0065] When using, such as Figures 1 to 7 As shown, when this invention is installed on a spring manufacturing machine, after each spring is wound, the actuation unit 40 is activated, using its actuation rod 41 to push the sliding platform 32 forward. Simultaneously, the limiting pin 31 moves within the inclined guide groove 123, causing the cutting block 242 of the movable notch 22 at the other end of the driving shearing part 30 to cut downwards. This, together with the cutting block 241 of the fixed notch 21 which remains stably in place, forms an effective shearing configuration. When the movable blade 12 interacts with the fixed blade 11, the metal wire at the tail end of the spring can be effectively cut. After shearing, the cylinder shaft retracts, and the sliding platform 32 automatically returns to its initial position, allowing the shearing part 20 to open and prepare for the next shearing. The entire process is efficient and continuous, meeting the finishing shearing needs of various spring manufacturing processes.

[0066] Compared with existing technologies, the advantages of the spring manufacturing machine shearing device 100 of this utility model are that the overall structure design is more streamlined, the practicality is excellent, the equipment volume and weight can be greatly reduced, the size is small, the installation clearance space is large, the shearing part 20 can be placed closer to the wire exit position, which is convenient for the assembly and application of various spring machines, and provides a stable cutting force. During shearing, the movable blade plate 12 and the cutting block 242 will not deviate outward, which can ensure a good shearing effect. The biggest advantage is that it can more effectively shorten the spring when finishing the manufacturing process without secondary processing, thus achieving the practical purpose of reducing costs and effectively improving production efficiency.

[0067] In summary, this utility model is novel and practical, fully meeting the requirements for a patent, and therefore a utility model patent application is filed. However, the above description is merely a preferred embodiment of this utility model and should not be construed as limiting the scope of its implementation; therefore, all equivalent changes and modifications made in accordance with the claims and description of this utility model should fall within the scope of this utility model patent.

Claims

1. A spring manufacturing machine cutting device characterized by: It comprises: a base, which is provided with a fixed blade and a movable blade, a pivot is arranged between the fixed blade and the movable blade, and the two ends of the pivot are formed into a shearing part and a shearing pushing part, wherein the shearing part is arranged at the front end of the fixed blade and the movable blade, and is composed of two mutually shearing fixed notches and movable notches, a top block and a cutter block are respectively arranged in the fixed notches and the movable notches; the shearing pushing part is arranged at the rear end of the fixed blade and the movable blade, a slant guide groove is arranged behind the movable blade, a limiting sliding pin is arranged in the slant guide groove, the other end of the limiting sliding pin is locked in front of a sliding platform, a linear sliding rail is correspondingly arranged under the sliding platform, and the linear sliding rail is fixedly arranged on the base behind the fixed blade, and a driving group is arranged behind the base, which has a driving rod connected to the rear of the sliding platform, and provides the driving force for the linear movement of the sliding platform.

2. The spring manufacturing machine cutting apparatus of claim 1 wherein, The driving group and the driving rod are composed of the cylinder shaft of a pneumatic cylinder or an oil pressure cylinder.

3. The spring manufacturing machine cutting apparatus of claim 1 wherein, A first group of stop inclined surfaces is correspondingly arranged between the fixed notches and the cutter blocks arranged in the fixed notches, a third group of stop inclined surfaces is correspondingly arranged between the other side of the cutter blocks and the top blocks connected to the other side of the cutter blocks, and the other side of the top blocks is correspondingly tightly connected to the other side of the fixed notches; similarly, a second group of stop inclined surfaces is correspondingly arranged between the movable notches and the cutter blocks arranged in the movable notches, a fourth group of stop inclined surfaces is correspondingly arranged between the other side of the cutter blocks and the top blocks connected to the other side of the cutter blocks, and the other side of the top blocks is correspondingly tightly connected to the other side of the movable notches, so that the cutting edges of the two cutter blocks will not be offset outwardly when they are sheared against each other, thereby ensuring good shearing effect.

4. The spring manufacturing machine cutting apparatus of claim 3 wherein, The two top blocks arranged in the fixed notches and the movable notches are further respectively provided with a front locking screw and a side locking screw for two-way reinforced fixation, and a stop block is additionally arranged outside the top blocks of the fixed notches.

5. The spring manufacturing machine cutting apparatus of claim 1 wherein, The pivot is T-shaped, a gasket and a ball bearing sleeve are sleeved on the upper shaft part of the pivot, and a V-shaped groove is arranged around the reduced shaft part at the bottom of the pivot; a screw hole is arranged outside each of the four cutting edges of the corresponding pivot connection hole of the fixed blade, and four counterbores are arranged on both sides of the fixed blade, so that four counterbores are locked, the T-shaped pivot is limited to be pinched inwardly, and the fixed blade and the movable blade will not be offset outwardly when they are sheared against each other.

6. The spring manufacturing machine cutting apparatus of claim 1 wherein, A touch switch is correspondingly arranged on the rear side of the movable blade and is fixed on the base of the fixed blade, so as to adjust the stroke distance by touching.

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