KR101924758B1 - Apparatus for assembling torsional spring in door lock - Google Patents

Abstract

The present invention relates to an apparatus for assembling a torsion spring on a body support of a door lock, including support supply means (20) for supplying a body support on a support feeder (21) to an assembly rail (26) via a feed rail (22); spring supply means (30) for supplying a torsion spring on a spring feeder (31) to a loader (33) via a feed rail (32); tensioning means (40) for causing elastic deformation and holding a posture with the torsion spring seated on a jig base (41); and coupling means (50) for sequentially coupling the posture-maintained torsion spring to the body support transferred to the assembly rail (26). With the present invention, it is possible to automate the process of assembling torsion springs in a tensioned state during the mass production of door lock parts employing the torsion springs with a relatively high tension, and thus it is possible to improve working environments and productivity.

Description

Technical Field [0001] The present invention relates to a torsion spring assembly device for a door lock,

The present invention relates to a torsion spring assembling apparatus for a door lock, and more particularly, to a door lock assembly apparatus for automatically assembling parts of a door lock which is very difficult to assemble at a production site, To a torsion spring assembly apparatus for a door lock.

In general, a door lock has a structure in which a plurality of functional components are coupled between an inner support on an indoor side and an outer support on an outdoor side, and can perform a locking and unlocking function together with opening and closing of a door through rotation of inner and outer levers. Partial automation of some functional components is preferred because full automation is not practical in reality at production sites that produce such a door lock.

As a prior art reference which can be referred to in this connection, there is known Korean Registered Utility Model No. 1995-0008762 (Prior Art 1) and Korean Patent Registration No. 1631279 (Prior Art 2).

In the prior art document 1, a fixing jig is formed at the center of a rectangular housing plate having an open top, a rectangular jig at the periphery thereof is configured to be capable of being pivoted in a jig moving cylinder, and a positioning jig The cover feeder and the binding ring are provided with a binding ring feeder, a crimping device and a pull-out device with a tear-off perforator. Therefore, it is expected to continuously automate a series of operations related to the cover.

Prior Art 2 includes a storage member for storing at least one of the components of the door lock assembly; A transfer member for sequentially transferring the parts of the door lock assembly housed in the storage member; A process member for sequentially assembling and inspecting the parts transferred from the transferring member; A discharging portion for selectively discharging a good product and a defective product; And the like. Therefore, productivity improvement and manufacturing cost reduction are anticipated as the entire assembling process proceeds automatically.

However, according to the above-mentioned prior arts, there is a problem that the design strength is not reflected in reducing the labor intensity of the worker and mass productivity of the door lock employing the torsion spring having a relatively large tension, thereby posing a limit to the limit.

Korean Registered Utility Model No. 1995-0008762 "Door lock assembly automatic assembly device" (published on November 16, 1994). Korean Patent Registration No. 1631279 entitled "Door Lock Automatic Assembly System" (Open date: June 17, 2016).

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems in the prior art, and it is an object of the present invention to provide a torsion spring for automating a process of assembling a torsion spring in a state of applying a tensile force in mass production of a door lock employing a torsion spring having a relatively large tension, And to provide a spring assembling apparatus.

In order to achieve the above object, the present invention provides an apparatus for assembling a torsion spring on a body support of a door lock, comprising: a support supply means for supplying a body support on a support feeder to an assembly rail via a transfer rail; Spring supply means for supplying the torsion spring on the spring feeder to the loader via the feed rail; A tension applying means for causing elastic deformation in a state in which the torsion spring is seated on the cloth and maintaining the posture; And a coupling means for sequentially coupling the torsion spring held in the posture to the body support to be transferred to the assembly rail, wherein the spring supply means includes a torsion spring as a support jaw opposed to the lower end of the transfer rail, The tension applying means includes a protrusion extending to an outer circumferential surface of the guide so as to be engageable with one projecting piece of the torsion spring, a push rod provided to be able to move into and out of the plurality of protrusions, And a latching jaw provided at a position adjacent to the guide so as to be able to engage with the other projecting piece of the spring, wherein the engaging means comprises a reciprocating conveying table, a gripper holding a torsion spring held at the lower end of the conveying table, And a demounting base for causing the gripped torsion spring to be released downward.

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As a detailed configuration of the present invention, the tension applying means further includes a support base for allowing the support bar to go into and out of the support, thereby restricting the arbitrary release of the torsion spring.

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According to the present invention, it is possible to automate the process of assembling the torsion spring in a state in which the torsion spring is applied in the mass production of the door lock employing the torsion spring having a relatively large tension, thereby improving the working environment and improving the productivity.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a configuration diagram showing a main part of a door lock applied to the present invention; Fig.
Figure 2 is a schematic representation of a device according to the present invention,
3 is a configuration diagram showing a support supply means of the apparatus according to the present invention;
Figs. 4 to 6 are diagrams showing spring supply means, tension applying means and engaging means of the device according to the present invention

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention proposes an apparatus for assembling a torsion spring on a body support of a door lock. 1, the body support 10 has a connecting rod 13 opposed to a position adjacent to the central boss 11, and a torsion spring 15 having two protruding pieces 16 protrudes from the boss 11 Is coupled onto the jaw 12. Since the torsion spring 15 is relatively large, it is difficult for the operator to press the both side protruding jaws 12 with the hand or the tool and to add the tension (torque), and there is a great possibility of safety accident.

In the description of the present invention, the body support is referred to as 'support' and the torsion spring as 'spring'.

The support supply means 20 according to the present invention is a structure for supplying the body support on the support feeder 21 to the assembly rail 26 via the feed rail 22. [ The two support feeders 21 illustrated in Fig. 2 separately receive a plurality of indoor-side inner supports and a plurality of outdoor-side outer supports, and selectively supply them according to process conditions. The selected body support is transported in series from the selected transfer rail 22 to the assembly rail 26. Referring to FIG. 3, the assembly of the body support is completed through the assembly rail 26 and the discharge rail 27.

At this time, a lifter 23 for loading the body support can be installed at the joining portion of the both-side conveying rails 22, and an alignment rail 25 is provided between the conveying rails 22 and the assembly rails 26, . ≪ / RTI > The lifter 23 loads the body supports, which arrive at the downstream end of the conveying rail 22, one by one to the upstream end of the aligning rail 25. The alignment rail 25 forms a narrow groove through which only the connecting rod 13 exposed at the upper portion passes, and converts the body support, which reaches the assembly rail 26, into an established posture for assembling the torsion spring.

According to the present invention, the spring supply means (30) is a structure for supplying the torsion spring on the spring feeder (31) to the loader (33) via the feed rail (32). The spring feeder 31 receives a plurality of torsion springs and feeds the torsion springs 31 to the feed rail 32 while maintaining a predetermined posture. For example, the opposing projecting pieces 16 of the torsion spring 15 can be conveyed to face front. A loader 33 for feeding a torsion spring to the tensioning means 40 is provided at the downstream end of the transfer rail 32. The loader 33 is installed so as to simultaneously perform vertical movement and linear movement as will be described later.

The spring supply means 30 further includes a loading table 35 for transferring the torsion spring to a predetermined position by supporting the tether 36 to the lower end of the transfer rail 32, . Referring to FIGS. 4 and 5, it can be seen that the loading platform 35 is installed below the loader 33. The loading table 35 is provided with a receiving jaw 36 on the inner surfaces thereof facing each other. Thus, when the torsion spring reaches the downstream end of the feed rail 32, the loader 33 is lowered and contacted, and is pushed in a linear motion to be seated in the receiving jaw 36 of the loading table 35. Thereafter, the loading table 35 transfers the seated torsion spring to an upper position of a guide 41 described later and waits.

According to the present invention, the tension applying means (40) causes elastic deformation in a state in which the torsion spring is seated on the guide (41) and maintains the posture. The elastic deformation of the torsion spring is intended to maintain a posture that can be inserted into the boss 11 and the protrusion 12 of the body support 10 as shown in Fig. The guide 41 receives the torsion spring being conveyed and waiting by the loading table 35, and maintains the posture in which the tension is applied by the elastic deformation.

The tension applying means 40 includes a protrusion 42 extending to the outer circumferential surface of the guide 41 so as to be able to engage with one projecting piece of the torsion spring, And a stopper (44) provided at a position adjacent to the guide (41) so as to be able to engage with the other projecting piece of the torsion spring. The detailed configuration of the guide 41, the projection 42, the bar 43, the engaging jaw 44 and the like constituting the tension applying means 40 is particularly evident from Figs. 5 and 6. Fig.

The guide 41 is formed in a circular cross section and mounted on the jig plate so as to be movable up and down and rotated. The guide 41 is connected to the air cylinder for vertical movement and to the motor for forward and reverse rotation. Thus, the guide 41 can sequentially perform vertical movement and rotational movement. The jig plate is also installed to perform up-and-down movement by connecting to a separate air cylinder.

The protrusions 42 are horizontally formed on the upper end of the outer peripheral surface of the support 41, but also include those formed vertically. The projection 42 may be connected to the upper end of the guide 41 to slide separately. In this case, the guide rod (41) can rotate and the protruding piece (42) can share the up and down movement. The torsion spring 15 mounted on the guide 41 in the posture of FIG. 5 has one projecting piece 16 located on the lower side and the other projecting piece 16 located on the upper side. One of the plurality of protrusions (42) is formed in a bent shape capable of engaging with one projecting piece (16) of the torsion spring.

The plungers (43) are provided on the jig plate in plural and simultaneously cause vertical movement. The torsion spring is pushed up and released from the guide rod 41 in the upward movement of the plunger 43 between the protrusions 42. [

The latching jaw 44 is bent in an L shape and is provided in a position adjacent to the guide rod 41 and in a path through which the other side projecting piece 16 on the upper side in the rotation of the torsion spring moves. Thus, while the torsion spring loaded on the guide rod 41 rotates by a predetermined angle, the locking jaw 44 restricts the movement of the upper side other side projecting piece 16 and only the lower side one side projecting piece 16 So that the torsion spring is elastically deformed.

The tension applying means 40 is further provided with a support base 46 for allowing the support bar 47 to move in and out of the guide bar 41 so as to restrain the optional release of the torsion spring do. 5 shows a state in which the support bar 47 stays on the inner side of the support stage 46 and Fig. 6 shows the state in which the support bar 47 temporarily reaches the outer side of the support stage 46. The support bar 47 cuts off the upper end of the guide 41 so that the guide rod 41 does not move upward while causing elastic deformation of the torsion spring. It is preferable that the support stand 46 adds up and down movements in addition to the linear motion of the guide rod 41.

Also, according to the present invention, the coupling means (50) sequentially engages the torsion springs held in the posture in the body support which is transferred to the assembly rail (26). The engaging means 50 brings the torsion springs, which are elastically deformed and held in the attitude 41, to the assembly rail 26 as they are, and engages the body support. The coupling means 50 is controlled in synchronism with the above-described support supply means 20, spring supply means 30, and tension applying means 40.

In the detailed configuration of the present invention, the engaging means 50 includes a conveying belt 52 for reciprocating motion, a peeling band 54 for holding a torsion spring held at the lower end of the conveying belt 52, And a demounting base (56) for causing a downward departure of the exhaust gas. The conveying table 52 is formed in a circular structure and has a crest 54 and a demounting table 56 at its lower end. The transfer table 52 reciprocates between the guide table 41 and the support table 46. The fascia (54) is configured to engage with the upper end of the guide (41). The demounting rod 56 is released to the lower side of the gripped torsion spring in the same manner as the above-mentioned pushing rod 43.

As an example of the main operation, after the torsion spring reaches the downstream end of the transfer rail 32, the loader 33 seats the torsion spring on the loading table 35 and the loading table 35 advances to the guide 41 The projecting piece 41 or the projecting piece 42 is lifted to seat the torsion spring and the projecting piece 16 is engaged with the projecting piece 42 while the projecting piece 41 is rotated, The projecting piece 16 engages with the engaging step 44 and while the torsion spring is held in the tensioned position, the upper conveying table 52 descends and the lower plunger 43 rises, The removal base 56 is operated to move the torsion spring to the boss 11 and the protrusion 12 in a state in which the transfer table 52 approaches the body support of the assembly rail 26, And the assembled door lock is collected through the discharge rail 27.

According to the present invention, it is possible to automate the process of assembling the torsion spring in a state in which the torsion spring is applied in the mass production of the door lock component employing the torsion spring having a relatively large tension, thereby improving the working environment and improving the productivity .

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

10: Body support 11: Boss
12: protruding chin 13: connecting rod
15: Torsion spring 16:
20: Support supply means 21: Support feeder
22: feed rail 23: lifter
25: alignment rail 26: assembly rail
30: Spring supply means 31: Spring feeder
32: feed rail 33: loader
35: Loading stand 36: Base jaw
40: tension applying means 41:
42: stone 43:
44: latching jaw 46: support
47: support bar 50: engaging means
52: Feed belt 54: Fascia
56: Unloader

Claims (5)

An apparatus for assembling a torsion spring on a body support of a door lock comprising:
Support supply means (20) for supplying the body support on the support feeder (21) to the assembly rail (26) via the feed rail (22);
Spring supply means 30 for supplying the torsion spring on the spring feeder 31 to the loader 33 via the feed rail 32;
Tensioning means (40) for causing elastic deformation and holding the posture while the torsion spring is seated on the guide (41); And
And a coupling means (50) for sequentially coupling the torsion springs in which the posture is maintained to a body support conveyed to the assembly rail (26)
The spring supply means 30 further includes a loading table 35 for supporting the torsion spring to a predetermined position by a receiving jaw 36 opposed to the lower end of the feeding rail 32,
The tension applying means 40 includes a protrusion 42 extending to the outer circumferential surface of the guide 41 so as to be engageable with one projecting piece of the torsion spring, (43), and a latching jaw (44) provided at a position adjacent to the guide (41) so as to be able to engage with the other projecting piece of the torsion spring,
The engaging means 50 includes a transfer table 52 for reciprocating movement, a fibril pad 54 for gripping a torsion spring held at the lower end of the transfer table 52, And a giant (56). delete delete The method according to claim 1,
The torsion spring assembling device (40) further comprises a support base (46) for allowing the support bar (47) to go in and out of the support table (41) . delete

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