Ejector pin mechanism of spring machine

Abstract

The utility model discloses an ejector pin mechanism of a spring machine, which relates to the technical field of spring processing equipment and comprises a sliding rail and a sliding seat slidably mounted on the sliding rail, a connecting seat is mounted at the front end of the sliding seat, an adjusting seat is rotatably embedded in the connecting seat, an ejector pin is detachably fixed at the front end of the adjusting seat, and the ejector pin is fixed on the sliding rail. A pressing groove for guiding a steel wire to form a spring is formed in the side wall, attached to a wire outlet of the spring machine, of the front end of the ejector pin, and a limiting piece for limiting the adjusting base is further arranged in the connecting base. A mounting hole for movably inserting the adjusting seat is formed in the middle of the connecting seat, and a second screw hole is formed in the outer side wall of the connecting seat; through the arrangement of the connecting seat, the adjusting seat and the limiting piece, the effect of producing springs with various pitches without replacing the ejector pin is achieved, the number of needed matched ejector pins is reduced, and therefore the equipment cost of the ejector pin mechanism of the spring machine is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to spring processing equipment technical field, concretely is a spring machine thimble mechanism. BACKGROUND

[0002] Spring machine refers to the mechanical equipment of spring production, and is divided into: spring machine, spring machine, universal machine, disc machine and special spring machine according to functional characteristics.It includes machine body, operating panel, cutting knife, thimble and other devices.

[0003] The spring machine thimble mechanism in prior art is mostly composed of slide rail, slide base driven by crankshaft and thimble fixedly installed on slide base, and the thimble is used (alone or cooperates with spring winding shaft) to extrude steel wire to form spring body, and the pressing groove angle of thimble is invariable, so the pitch of spring produced is same, and when different pitch springs need to be produced, different thimbles need to be replaced to produce.

[0004] Therefore, a spring machine thimble mechanism is urgently needed. UTILITY MODEL CONTENT

[0005] In view of the problems in prior art, the utility model solves the problems by the following technical structure.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0007] A spring machine thimble mechanism, comprising: slide rail and slide base slidably installed on the slide rail, the front end of the slide base is provided with a connecting seat, and the connecting seat is rotatably embedded with an adjusting seat;

[0008] The front end of the adjusting seat is detachably fixed with a thimble, and the front end of the thimble is provided with a pressing groove for guiding steel wire to form spring on the side wall of the spring machine wire outlet;

[0009] The connecting seat is further provided with a limiting piece for limiting the adjusting seat.

[0010] Further features are,

[0011] The middle part of the connecting seat is provided with a mounting hole for the movable insertion of the adjusting seat, and the outer side wall of the connecting seat is provided with a second screw hole;

[0012] The limiting piece comprises a first positioning bolt, and one end of the first positioning bolt is threaded through the second screw hole and abuts against the outer side wall of the adjusting seat.

[0013] The front end of the adjusting seat is provided with a insertion hole, the upper end of the adjusting seat is provided with a third screw hole, and the third screw hole is threadedly connected with a second positioning bolt;

[0014] The connecting end head is provided with a positioning hole for the second positioning bolt to pass through.

[0015] The plunger head is integrally formed at the front end of the plunger.

[0016] When the adjusting seat is embedded into the connecting seat, the front end side wall of the adjusting seat is in the same plane with the front end side wall of the connecting seat.

[0017] The front end side wall of the connecting seat is uniformly provided with a plurality of fine scales along the circumferential side of the mounting hole, and the front end side wall of the adjusting seat is provided with at least two pointing marks matched with the fine scales, and the pointing marks are away from the plunger.

[0018] The intersection edges between the two sides of the plunger head and the lower surface are each provided with an inclined pressing wall, and the two inclined pressing walls and the lower surface of the plunger head form two oppositely arranged included angles, the included angle is 15-30°, and the two inclined pressing walls are also provided with pressing grooves, and the guide angles or sizes or guide directions of the three pressing grooves are different.

[0019] The second positioning bolt is integrally formed with a smooth bolt column with a diameter smaller than that of the second positioning bolt, the smooth bolt column movably penetrates the third screw hole, and the smooth bolt column is inserted into the positioning hole in a damping manner.

[0020] Preferably, the rear side of the mounting hole is fixedly embedded with an elastic damping block, a plurality of anti-skid ribs are arranged on the elastic damping block, and the surface of the elastic damping block and the anti-skid ribs on the elastic damping block are in interference fit with the outer side wall of the adjusting seat.

[0021] One of the edges of the insertion hole is provided with an anti-stupid inclined wall, and one of the edges of the connecting end head is provided with an anti-stupid chamfer matched with the anti-stupid inclined wall.

[0022] The front end of the sliding seat is integrally formed with a connecting lip plate, and the connecting lip plate is provided with a first screw hole.

[0023] The connecting seat is provided with an adjustable through hole penetrating the connecting seat at both ends, the adjustable through hole is a long strip-shaped hole, a connecting bolt is arranged in the adjustable through hole, and one end of the connecting bolt movably penetrates the adjustable through hole and is threadedly connected with the first screw hole.

[0024] The above structure of the utility model can achieve the following beneficial effects:

[0025] By the setting of the connecting seat, the adjusting seat and the limiting piece, when the pitch of the processed spring needs to be changed, the staff only needs to first release the limiting action of the limiting piece on the adjusting seat, and rotate the thimble, so that the thimble drives the adjusting seat to rotate in the connecting seat, the front end of the rotated thimble pressure groove is angularly deflected, so as to change the deflection angle generated when the steel wire pressure groove is limited and guided, so as to change the pitch of the prepared spring, so as to achieve the effect of producing multiple pitch springs without replacing the thimble, reduce the number of required thimbles, and thus reduce the equipment cost of the thimble mechanism of the spring machine;

[0026] By the setting of the elastic damping block, after the adjusting seat is rotated, the elastic damping block and the adjusting seat are in interference fit, so that the adjusting seat is not easy to rotate, that is, the adjusting seat can be preliminarily limited, so as to facilitate the staff to free their hands to install the first positioning bolt, so as to avoid the staff to install the first positioning bolt while keeping the posture of the adjusting seat correct, thereby reducing the difficulty of work, and also achieving accurate positioning of the adjusting seat after rotation. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic diagram of the three-dimensional structure in the embodiment;

[0028] Figure 2 is a schematic diagram of the split structure in the embodiment;

[0029] Figure 3 is a schematic diagram of the connecting seat structure in the embodiment;

[0030] Figure 4 is a schematic diagram of the adjusting seat structure in the embodiment;

[0031] Figure 5 is a schematic diagram of the thimble structure in the embodiment.

[0032] In the figure: 1, slide rail; 2, slide seat; 21, connecting lip plate; 211, first screw hole; 3, connecting seat; 31, mounting hole; 32, adjustable through hole; 33, connecting bolt; 34, second screw hole; 35, first positioning bolt; 36, elastic damping block; 37, fine scale; 4, thimble; 41, connecting end; 411, positioning hole; 412, foolproof chamfer; 42, spring head; 421, pressure groove; 422, inclined pressure wall; 5, adjusting seat; 51, insertion hole; 511, foolproof inclined wall; 52, third screw hole; 53, second positioning bolt; 531, smooth bolt column; 54, pointer. DETAILED DESCRIPTION

[0033] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0034] It should be noted that the terms "comprising" and "having" and any variations thereof in the specification and claims of the present application and the above drawings are intended to cover non-exclusive inclusion, for example, a process, method, device, product or equipment comprising a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0035] The above and other embodiments of the present application will be described in detail below in conjunction with the drawings. Figures 1-5 The present application will be described in further detail.

[0036] Reference Figures 1-2 As shown in the spring machine needle mechanism, comprising: slide rail 1 and slide rail 1 on the slide seat 2, the front end of the slide seat 2 is provided with a connecting seat 3, the connecting seat 3 is rotatably embedded with an adjusting seat 5;

[0037] The front end of the adjusting seat 5 is detachably fixed with a needle 4, and the front end of the needle 4 is fitted with a side wall of a spring machine wire outlet, and a pressure groove 421 is formed for guiding the steel wire to form a spring;

[0038] The connecting seat 3 is further provided with a limiting member for limiting the adjusting seat 5.

[0039] Based on the above structure, when the pitch of the processed spring needs to be changed, the staff only needs to first release the limiting effect of the limiting member on the adjusting seat 5, and rotate the needle 4, so that the needle 4 drives the adjusting seat 5 to rotate in the connecting seat 3, the front end of the needle 4 after rotation Pressure groove 421 occurs angular deflection (the actual implementation process is 3-12°, and the slot opening deflection distance of the pressure groove 421 is less than 2mm), so as to change the deflection angle of the steel wire when limited and guided by the pressure groove 421, so as to change the pitch of the spring to be made, so as to realize the production of multiple pitch springs without changing the needle 4, reduce the number of required supporting needles 4, and thus reduce the equipment cost of the spring machine needle mechanism.

[0040] As Figures 3-4 As shown, the connecting seat 3 is provided with a mounting hole 31 for the adjusting seat 5 to be movably inserted, and the outer wall of the connecting seat 3 is provided with at least one (two in the figure) second screw hole 34;

[0041] The limiting member comprises a first positioning bolt 35, one end of which is threaded through the second screw hole 34 and abuts against the outer side wall of the adjusting seat 5.

[0042] When the first positioning bolt 35 is tightened, one end of the first positioning bolt 35 abuts against the outer side wall of the adjusting seat 5, thereby frictionally limiting the adjusting seat 5, so that the posture of the adjusting seat 5 is fixed, thereby meeting the requirement of fixing the position of the adjusting seat 5, i.e. the position of the ejector pin 4. During use, the staff only needs to loosen the first positioning bolt 35, so as to release the limitation of the adjusting seat 5, thereby facilitating the rotation of the adjusting seat 5, and achieving the purpose of changing the deflection angle of the ejector pin 4.

[0043] As shown in Figure 2 , Figure 4 and Figure 5 , the adjusting seat 5 is provided with a insertion hole 51 at the front end, and a third screw hole 52 is formed at the upper end of the adjusting seat 5, and a second positioning bolt 53 is threadedly connected in the third screw hole 52.

[0044] The ejector pin 4 is integrally formed with a connecting end 41 at the tail end, and a positioning hole 411 is formed in the connecting end 41 for the end of the second positioning bolt 53 to pass through.

[0045] The lower end of the second positioning bolt 53 is integrally formed with a smooth column 531 having a smaller diameter than the second positioning bolt 53, the smooth column 531 movably passes through the third screw hole 52, and the smooth column 531 is dampingly inserted into the positioning hole 411.

[0046] The ejector pin 4 is integrally formed with a compression spring head 42 at the front end, and a compression groove 421 is formed at the front end of the compression spring head 42.

[0047] The staff can insert the connecting end 41 into the insertion hole 51 and tighten the second positioning bolt 53, so that the smooth column 531 at the lower end of the second positioning bolt 53 is dampingly inserted into the positioning hole 411, thereby fixing the position of the connecting end 41, i.e. conveniently installing the ejector pin 4 on the adjusting seat 5. Similarly, the staff can also loosen and remove the second positioning bolt 53, and then remove the connecting end 41 from the insertion hole 51, thereby disassembling the ejector pin 4. This is beneficial to the staff to install and disassemble, and is convenient for the staff to replace and maintain the ejector pin 4, and is simple and convenient to operate.

[0048] Further optimization is that, as shown in Figures 4-5 , one of the edges of the insertion hole 51 is provided with a foolproof inclined wall 511, and one of the edges of the connecting end 41 is provided with a foolproof chamfer 412 matched with the foolproof inclined wall 511, so as to guide the staff to correctly install the ejector pin 4, and avoid the phenomenon of reverse installation and incorrect installation.

[0049] As shown in Figure 5As shown, the intersection edges between the two sides of the compression spring head 42 and the lower surface are each provided with an inclined compression wall 422, and the two inclined compression walls 422 and the lower surface of the compression spring head 42 form two oppositely arranged included angles, the included angle is 15-30°, and the two inclined compression walls 422 are also provided with a compression groove 421, and the guide included angle or size or direction of the three compression grooves 421 is different, so that one ejector pin 4 can use different specifications of the compression groove 421 to guide the steel wire after rotating a certain angle, thereby being suitable for spring manufacturing operations of different specifications, being capable of conveniently changing the specifications of the production finished products, and not needing to disassemble and replace the ejector pin 4, thereby reducing the replacement steps, reducing the workload of the workers, and being capable of reducing the time for replacing the production finished products, thereby avoiding the increase in cost caused by the need to configure multiple ejector pins 4.

[0050] Further optimization is that, as shown in Figures 3-4 When the adjustment seat 5 is embedded into the connecting seat 3, the front end side wall of the adjustment seat 5 and the front end side wall of the connecting seat 3 are located in the same plane;

[0051] The front end side wall of the connecting seat 3 is uniformly provided with a plurality of fine scales 37 along the circumferential side of the mounting hole 31, and the front end side wall of the adjustment seat 5 is provided with at least two pointing marks 54 adapted to the fine scales 37, and the pointing marks 54 avoid the ejector pin 4, so that the workers can know the adjustment data during the adjustment process, ensure the adjustment accuracy, and reduce the difficulty of the adjustment operation.

[0052] As shown in Figure 3 The rear side of the mounting hole 31 is fixedly embedded with an elastic damping block 36, the elastic damping block 36 is made of an elastic material (such as rubber) commonly used in the prior art and suitable for the present embodiment, the surface of the elastic damping block 36 has a large friction coefficient, the elastic damping block 36 is provided with a plurality of anti-skid ribs, and the surface of the elastic damping block 36 and the anti-skid ribs on the elastic damping block 36 are in interference fit with the outer side wall of the adjustment seat 5. After rotating the adjustment seat 5, the interference fit between the elastic damping block 36 and the adjustment seat 5 makes it difficult for the adjustment seat 5 to rotate, that is, the adjustment seat 5 can be preliminarily positioned, thereby facilitating the workers to free their hands to install the first positioning bolt 35, avoiding the workers to install the first positioning bolt 35 while keeping the posture of the adjustment seat 5 correct, thereby reducing the work difficulty, and also achieving accurate positioning of the adjustment seat 5 after rotation.

[0053] As shown in Figures 2-3 The front end of the sliding seat 2 is integrally formed with a connecting lip plate 21, and the connecting lip plate 21 is provided with a first screw hole 211;

[0054] The connecting seat 3 is provided with an adjustable through hole 32 penetrating through the connecting seat 3 at both ends, the adjustable through hole 32 is a long strip-shaped hole, and the connecting bolt 33 is penetratingly arranged in the adjustable through hole 32, one end of the connecting bolt 33 is movably penetrating through the adjustable through hole 32 and is in threaded connection with the first screw hole 211.

[0055] The worker can loosen the connecting bolt 33 to move the adjusting seat 3 forward and backward, and relatively move the connecting bolt 33 in the adjustable through hole 32, thereby changing the mounting position of the adjusting seat 3, adjusting the front end position of the needle 4 in the initial state within the length range of the adjustable through hole 32, thereby adapting to different advancing processes, and further producing springs with different height-diameter ratios, so that the spring machine needle mechanism has a wider application range.

[0056] In summary, in the daily use process, when the pitch of the processed spring needs to be changed, the worker only needs to loosen the first positioning bolt 35 to release the limiting of the adjusting seat 5, and rotate the needle 4 to drive the adjusting seat 5 to rotate in the connecting seat 3. The front end pressure groove 421 of the rotated needle 4 is angularly deflected, thereby changing the deflection angle generated when the steel wire is limited and guided by the pressure groove 421, changing the pitch of the manufactured spring, achieving the effect of producing springs with multiple pitches without replacing the needle 4, reducing the number of required matching needles 4, and thereby reducing the equipment cost of the spring machine needle mechanism.

[0057] The above is only the preferred embodiment of the application, and the utility model is not limited to the above embodiments. It can be understood that other improvements and changes directly derived or thought of by those skilled in the art without departing from the spirit and concept of the utility model should be considered to be included in the protection scope of the utility model.

Claims

1. A spring machine ejector mechanism characterized by, Include: Slide rail (1) and slide seat (2) slidingly installed on slide rail (1), the front end of the slide seat (2) is provided with a connecting seat (3), the connecting seat (3) is rotatably embedded with an adjusting seat (5); The front end of the adjusting seat (5) is detachably fixed with a thimble (4), and the front end of the thimble (4) is provided with a guide steel wire spring forming groove (421) on the side wall of the spring machine wire outlet; Wherein, the connecting seat (3) is further provided with a limiting piece for limiting the adjusting seat (5).

2. A spring machine ejector mechanism according to claim 1, wherein: The middle of the connecting seat (3) is provided with a mounting hole (31) for the movable insertion of the adjusting seat (5), and the outer side wall of the connecting seat (3) is provided with a second screw hole (34); The limiting piece includes a first positioning bolt (35), one end of the first positioning bolt (35) is threaded through the second screw hole (34) and abuts against the outer side wall of the adjusting seat (5).

3. A spring machine ejector mechanism according to claim 2, wherein: The front end of the adjusting seat (5) is provided with a insertion hole (51), and the upper end of the adjusting seat (5) is provided with a third screw hole (52), and the third screw hole (52) is threadedly connected with a second positioning bolt (53); The tail end of the thimble (4) is integrally formed with a connecting end (41), and the connecting end (41) is provided with a positioning hole (411) for the end of the second positioning bolt (53) to penetrate.

4. A spring machine ejector mechanism according to claim 3, wherein: The front end of the thimble (4) is integrally formed with a spring head (42), and the spring head (42) is provided with a guide steel wire spring forming groove (421) on the front end.

5. A spring machine ejector mechanism according to claim 3, wherein: When the adjusting seat (5) is embedded in the connecting seat (3), the front end side wall of the adjusting seat (5) and the front end side wall of the connecting seat (3) are located in the same plane; The front end side wall of the connecting seat (3) is uniformly provided with a plurality of fine scales (37) along the circumferential side of the mounting hole (31), and the front end side wall of the adjusting seat (5) is provided with at least two direction indicators (54) matched with the fine scales (37), and the direction indicators (54) are arranged away from the thimble (4).

6. A spring machine ejector mechanism according to claim 4, wherein: The intersection edges between the two sides and the lower surface of the spring head (42) are all provided with inclined pressing walls (422), and the two inclined pressing walls (422) and the lower surface of the spring head (42) form two oppositely arranged angles, and the angle is 15-30°, and the two inclined pressing walls (422) are also provided with a spring forming groove (421), and the guide angles or sizes or guide directions of the three spring forming grooves (421) are different.

7. A spring machine ejector mechanism according to claim 4, wherein: The lower end of the second positioning bolt (53) is integrally formed with a smooth bolt column (531) with a diameter smaller than that of the second positioning bolt (53), the smooth bolt column (531) movably penetrates the third screw hole (52), and the smooth bolt column (531) is damply inserted into the positioning hole (411).

8. A spring machine ejector mechanism according to claim 3, wherein: The rear side of the mounting hole (31) is fixedly embedded with an elastic damping block (36), a plurality of anti-skid ribs are arranged on the elastic damping block (36), and the surface of the elastic damping block (36) and the anti-skid ribs on the elastic damping block (36) are in interference fit with the outer side wall of the adjusting seat (5).

9. A spring machine ejector mechanism according to claim 5, wherein: One of the edges of the jack (51) is provided with a foolproof inclined wall (511), and one of the edges of the connecting end (41) is provided with a foolproof chamfer (412) matched with the foolproof inclined wall (511).

10. A spring machine ejector mechanism according to claim 1, wherein: The front end of the sliding seat (2) is integrally formed with a connecting lip plate (21), and the connecting lip plate (21) is provided with a first screw hole (211). The connecting seat (3) is provided with an adjustable through hole (32) penetrating through the connecting seat (3) at both ends, the adjustable through hole (32) is a long strip-shaped hole, and a connecting bolt (33) is penetratingly arranged in the adjustable through hole (32), one end of the connecting bolt (33) movably penetrates through the adjustable through hole (32) and is in threaded connection with the first screw hole (211).

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