CN104550482B - A flat punching die for leisure chair support - Google Patents

Abstract

The invention discloses a flattening and punching die for a leisure chair support, and belongs to the technical field of leisure chair processing tools. The stamping die comprises an upper die, a lower die, a base, a stamping needle, a positioning block, a stamping guide mechanism, an extrusion stamping flat block, a return spring and a rotating shaft; wherein: the upper die is of a block structure, the punching needles are fixed at the central part of the bottom surface of the upper die, and 2 punching guide mechanisms are symmetrically fixed at the left side and the right side of each punching needle; the lower die is vertically fixed on the upper surface of the base; the positioning block is provided with a through vertical round hole and is fixed at the position right below the punching needle; the extrusion is towards the masque piece and is 2, fixes at the leading flank of lower mould, dashes flat guiding mechanism's position under, and the extrusion is towards masque piece top one corner and reset spring's one end fixed connection, and reset spring's the other end is fixed in the both sides of lower mould, the upper surface of base. The invention realizes that the punching and the flattening of the leisure chair bracket are completed at one time, and can also realize the flattening according to the requirement and limit and shape.

Description

A flat punching die for leisure chair support

technical field

The invention belongs to the technical field of leisure chair processing tools, and in particular relates to a flat punching die for leisure chair brackets.

Background technique

With the rapid improvement of people's living standards, people's demand for leisure and entertainment is increasing, and the market for leisure appliances is facing huge opportunities for development, such as leisure chairs. Not only hotels, seaside squares, swimming pools and other crowded places are It is easy to use, even in the home furnishing market, ordinary consumers are very fond of it, put it at home after purchase, and use it for sleep and rest in spare time.

On the production line of leisure seats, many support frames or back frames of the seats are connected by metal pipes, which need to be punched and flattened for easy assembly. Now the punching and flattening of the leisure chair bracket are generally completed in two processes, and the work of punching and then flattening is not high in work efficiency.

Chinese patent application number: 201410511308.2, the patent document published on 2015.01.14 discloses a tool for flattening and punching pipe fittings, including an upper template, a lower template, and a guide post guide sleeve structure arranged between the upper template and the lower template , its innovative point is that: the lower end surface of the upper template is provided with an upper movable mold, and a pressing station and a flattening and punching station are sequentially arranged between the upper template and the lower template along the horizontal direction; the pressing station The lower end surface of the upper movable mold is provided with an upper movable indenter. Correspondingly, the upper end surface of the lower template is provided with a lower movable indenter. The arc-shaped groove of the tight pipe fitting, and buffer cylinders are arranged between the upper movable pressure head and the upper template, and between the lower movable pressure head and the lower template. The problem of this invention is that: the pressing station and the flattening and punching station are sequentially arranged between the upper template and the lower template along the horizontal direction, but the punching needles of this invention are vertically arranged, and the pressing station and the flattening and punching station are arranged vertically. How to convert the position between the positions is not explained, and even if it can be converted, the invention also has the problem of excessive flattening because there is no limit device, and the continuous downward movement of the upper template will cause excessive flattening.

Contents of the invention

1. The technical problem to be solved by the invention

Aiming at the punching and flattening of the leisure chair bracket in the prior art is generally completed in two processes, and the existing flattening and punching tooling for pipe fittings has the problem of excessive flattening, the present invention provides a flattening and punching for the leisure chair bracket The mold can realize the punching and flattening of the leisure chair bracket at one time, and it can also realize the punching and flattening according to the needs and can limit and shape the shape to prevent the occurrence of excessive flattening.

2. Technical solution

The object of the present invention is achieved through the following technical solutions:

A flat punching die for a leisure chair support, including an upper die, a lower die, a base, a punching needle and a positioning block, and also includes a flattening guide mechanism, an extrusion flattening block, a return spring and a rotating shaft; wherein: the The upper die is a block structure, the punching pin is fixed at the center of the bottom surface of the upper die, and there are two flattening guide mechanisms, which are respectively symmetrically fixed on the left and right sides of the punching pin; the lower die is also a block structure, fixed vertically on the upper surface of the base; the positioning block has a through vertical hole, and is fixed in the center of the front side of the lower mold, directly below the punching pin, and the vertical hole corresponds to the punching pin; the extrusion There are two punching flat blocks, obtuse angle or right angle triangle structure, which are symmetrical on both sides of the positioning block and set with the largest side facing outwards. The rotating shaft passes through the inner side of the largest corner and is fixed on the front side of the lower die. The punching and flattening guide mechanism Directly below the position, the uppermost corner of the extruded flat block is fixedly connected with one end of the return spring, and the other end of the return spring is fixed on both sides of the lower die and the upper surface of the base.

Preferably, a guide block with a through vertical hole can be detachably fixed directly above the positioning block, the vertical hole of the guide block is the same diameter as the vertical hole of the positioning block and is kept on the same vertical center line as the punch superior.

Preferably, the left outer side or both left and right outer sides of the positioning block, and the front side of the extrusion flattening block are provided with positioning rods fixed on the base.

Preferably, the two opposite inner lower end slopes of the two extruding and flattening blocks are detachably and fixedly connected to the shaped blocks near the bottom corners.

Preferably, the flattening guide mechanism is an adjusting screw for flattening.

Preferably, the bottom end surface of the flattening adjustment screw is an inclined surface, the slope of which is the same as the slope at the upper end of the extrusion flattening block.

Preferably, the extrusion flattened block is in the shape of a right triangle.

3. Beneficial effects

Compared with the existing technology, the technical solution provided by the invention has the following remarkable effects:

(1) a kind of leisure chair support of the present invention is used for punching flat punching die, has fully utilized the obtuse angle of extrusion punching flat block or the buffer type descending mode of the inclined-plane of right angle triangular structure and the buffer type extruding principle, the prior art The upper and middle dies only drive the punching needle to descend to punch holes, and the creative improvement is to synchronize with the extrusion deformation, and use the positioning block to prevent excessive extrusion;

(2) a kind of leisure chair support of the present invention is used to punch flat punching die, and the setting of guide block can effectively guarantee that the punching direction of punching needle is on vertical line;

(3) a kind of leisure chair support of the present invention is used for flattening the punching die, and the setting of the positioning rod is convenient for the leisure chair support to maintain horizontal positioning in the horizontal direction, effectively preventing the displacement of punching flat and punching;

(4) A flat punching die for a leisure chair support of the present invention, with the setting of the shaping block, the leisure chair support can also form an inherent shape while flattening and punching, so as to ensure the consistency of the leisure chair support , easy to assemble and fix;

(5) A kind of leisure chair support of the present invention is used for flattening the punching die, and the flattening adjustment screw can adjust the height, and finally adjust and control the degree of flattening of the leisure chair support, so as to improve its versatility;

(6) A flat punching die for a leisure chair support of the present invention, the bottom end face of the flattening adjustment screw is an inclined plane, and the slope is the same as that of the upper slope of the extrusion flattening block, so as to increase the matching degree of the two contact surfaces and force effect, and improve the service life of the flattening adjustment screw and the extrusion flattening block;

(7) A flat punching die for a leisure chair support of the present invention, the extrusion punching flat block is in the shape of a right triangle, which is easy to calculate and find the law, and optimizes the combination effect of the whole device.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the structure of Embodiment 2 of the present invention.

In the figure: 1. Upper mold; 2. Lower mold; 3. Base; 4. Flattening guide mechanism; 5. Punching needle; 6. Guide block; 7. Extrusion flattening block; 8. Return spring; ; 10, positioning block; 11, positioning rod; 12, shaping block.

detailed description

In order to further understand the contents of the present invention, the present invention will be described in detail in conjunction with examples.

Example 1

A flat punching die for a leisure chair support in this embodiment includes an upper die 1, a lower die 2, a base 3, a punching needle 5 and a positioning block 10, and also includes a punching and flattening guide mechanism 4 and an extrusion punching and flattening block 7 , return spring 8 and rotating shaft 9; wherein: the upper die 1 is a block structure, the punching pin 5 is fixed at the center of the bottom surface of the upper die 1, and there are two punching flat guiding mechanisms 4, which are symmetrically fixed on the punching pins 5 respectively The left and right sides of the lower mold 2 are also block structures, which are vertically fixed on the upper surface of the base 3; the positioning block 10 has a through vertical round hole and is fixed on the front side of the lower mold In the center, the position directly below the punching needle 5, the vertical circular hole corresponds to the punching needle 5; the extrusion punching flat block 7 is two, obtuse triangle structure, symmetrical on both sides of the positioning block 10 and showing the largest side facing Set outside, pass the inner side of the largest corner with the rotating shaft 9 and fix it on the front side of the lower die 2, the position directly below the flattening guide mechanism 4, squeeze the uppermost corner of the flattening block 7 and fixedly connect with one end of the return spring 8, and the return spring The other end of 8 is fixed on the both sides of lower mold 2, the upper surface of base 3.

A method for using the flattening punching die for the leisure chair support of the present embodiment, the steps are:

A: Connect the upper mold 1 with the hydraulic mechanism;

B: Put the front end of the leisure chair bracket on the positioning block 10, and straighten it by hand;

C: Start the hydraulic mechanism, and the upper mold 1 moves downward;

D: While the punching needle 5 penetrates the front end of the leisure chair bracket, the lower end of the punching flat guide mechanism 4 contacts the upper slope of the extrusion punching block 7 and continues to press down along the slope, squeezing the punching block 7 along the rotating shaft 9 Rotate, the slope at the lower end rotates to the inside and exerts a pressing force on the outside of the front end of the leisure chair bracket, squeezing and flattening the front end of the leisure chair bracket;

E: After the punching needle 5 penetrates the front end of the leisure chair bracket, the punching needle 5 moves upwards and resets; the punching flat guiding mechanism 4 resets under the action of the return spring 8 because there is no pressure;

F: Pull out the lounge chair bracket that has been flattened and punched, replace it with another unprocessed lounge chair bracket, and repeat the above steps to continue processing.

The flattening punching die for a leisure chair support in this embodiment fully utilizes the buffered descending method and the buffered extrusion principle of the inclined surface of the obtuse triangle structure of the extruded flattened block, and the upper die in the prior art is only The punching needle is driven down to punch, and the creative improvement is that the punching needle is lowered and punched synchronously with the extrusion deformation of the extrusion punching flat block, and the positioning block is used to prevent excessive extrusion; the punching and flattening of the leisure chair bracket are realized at one time. purpose, and effectively prevent the occurrence of excessive flattening.

Example 2

As shown in Figure 1, a flat punching die for a leisure chair support of this embodiment has the same basic structure as that of Embodiment 1, the difference is that the positioning block 10 is directly above the positioning block 10 and can be detachably fixed. There is a guide block 6 passing through a vertical hole, the vertical hole of the guide block 6 is the same in diameter as the vertical hole of the positioning block 10 and remains on the same vertical center line with the punching needle 5; the left outer side of the positioning block 10 squeezes The front side of the punching flat block 7 is provided with a positioning rod 11 fixed on the base 3; the two relative inner lower end slopes of the two extrusion punching flat blocks 7 are detachably and fixedly connected to the position near the bottom corner. The shaping block 12; the flattening guide mechanism 4 is a flattening adjusting screw; the extrusion flattening block 7 is in the shape of a right triangle.

A method for using the flattening punching die for the leisure chair support of the present embodiment, the steps are:

A: Connect the upper mold 1 with the hydraulic mechanism;

B: Put the front end of the leisure chair bracket on the positioning block 10, and use the positioning rod 11 to position and straighten it;

C: Start the hydraulic mechanism, and the upper mold 1 moves downward;

D: When the punching needle 5 passes through the guide block 6 and then punches the front end of the leisure chair bracket, the lower end of the flattening adjusting screw contacts the inclined surface of the upper end of the extruding flattening block 7 and continues to apply pressure downward along the inclined surface. Press the flat block 7 to rotate along the rotating shaft 9, and the inclined surface at its lower end rotates inwardly and exerts a squeezing force on the outside of the front end of the leisure chair support, so that the front end of the leisure chair support is extruded and flattened;

E: After the punching needle 5 penetrates the front end of the leisure chair bracket, the punching needle 5 moves upwards and resets; the punching flat adjustment screw resets under the action of the reset spring 8 because there is no pressure;

F: Pull out the lounge chair bracket that has been flattened and punched, replace it with another unprocessed lounge chair bracket, and repeat the above steps to continue processing.

A flat punching die for a leisure chair support of this embodiment, due to the guiding effect of the guide block 6, the punching of the punching needle 5 is more accurate; the use of the positioning rod 11 can ensure that the leisure chair support is in the horizontal position. The horizontal orientation is maintained in the direction, which effectively prevents the displacement of punching and punching; the punching adjustment screw can adjust the height, and finally adjust and control the degree of punching of the leisure chair bracket, which improves the versatility of the whole device.

Example 3

As shown in Figure 2, a flat punching die for a leisure chair support in this embodiment has the same basic structure as that in Embodiment 2, the difference being that the bottom end face of the flattening adjustment screw is an inclined plane, and the slope is the same as that of the extrusion punch. The slopes at the upper ends of the flat blocks 7 have the same slope; the punching needle 5 is detachably fixed; a pedal controller is added to control the movement of the upper die 1 .

A method for using the flattening punching die for the leisure chair support of the present embodiment, the steps are:

A: Connect the upper mold 1 with the hydraulic mechanism;

B: Put the front end of the leisure chair bracket on the positioning block 10, and use the positioning rod 11 to position and straighten it;

C: Press the pedal controller with your foot to start the hydraulic mechanism, and the upper mold 1 moves downward;

D: When the punching needle 5 passes through the guide block 6 and then punches the front end of the leisure chair bracket, the lower end of the flattening adjusting screw contacts the inclined surface of the upper end of the extruding flattening block 7 and continues to apply pressure downward along the inclined surface. Press the flat block 7 to rotate along the rotating shaft 9, and the inclined surface at its lower end rotates inwardly and exerts a squeezing force on the outside of the front end of the leisure chair support, so that the front end of the leisure chair support is extruded and flattened;

E: After the punching needle 5 penetrates the front end of the leisure chair bracket, the punching needle 5 moves upwards and resets; the punching flat adjustment screw resets under the action of the reset spring 8 because there is no pressure;

F: Pull out the lounge chair bracket that has been flattened and punched, replace it with another unprocessed lounge chair bracket, and repeat the above steps to continue processing.

A kind of leisure chair support of this embodiment is used for punching flat punching die, and punching pin 5 is detachable, can replace punching pin 5 very conveniently, is convenient to produce the product of different specifications; The slope of the upper end of the extruding flattening block 7 is the same, which increases the matching degree and force effect of the two contact surfaces, and improves the service life of the flattening adjusting screw and the extruding flattening block; the use of the pedal controller makes the operation More convenient.

The examples described in the present invention are only to describe the preferred implementation of the present invention, and are not intended to limit the concept and scope of the present invention. Variations and improvements should fall within the protection scope of the present invention.

Claims (7)

1. a support for leisure chair is with rushing flat perforating die, including upper mould (1), counterdie (2), base (3), red needle (5) and locating piece (10), it is characterised in that: also include rushing flat guiding mechanism (4), flat piece (7), back-moving spring (8) and rotating shaft (9) are rushed in extruding；Wherein:

Described upper mould (1) is block structure, and red needle (5) is fixed on the centre of mould (1) bottom surface, and rushing flat guiding mechanism (4) is 2, is respectively symmetrically the left and right sides being fixed on red needle (5)；

Described counterdie (2) is also block structure, is perpendicularly fixed at the upper surface of base (3)；Described locating piece (10) has a through vertical circular hole, and is fixed on the center of the leading flank of counterdie (2), and the position directly below of red needle (5), vertical circular hole is corresponding with red needle (5)；Flat piece (7) are rushed in described extruding is 2, obtuse angle or triangular structure of right angle, in the lateral symmetry of locating piece (10) and arrange outwardly in maximum limit, pass inside maximum one jiao with rotating shaft (9), it is fixed on the leading flank of counterdie (2), rush the position directly below of flat guiding mechanism (4), extruding rush flat piece (7) topmost one jiao fix with one end of back-moving spring (8) and to be connected, the other end of back-moving spring (8) is fixed on the both sides of counterdie (2), the upper surface of base (3).

2. a kind of support for leisure chair according to claim 1 is with rushing flat perforating die, it is characterized in that: the surface of described locating piece (10) is also detachably fixed the guide pad (6) having through vertical circular hole, the vertical circular hole of guide pad (6) is identical with the vertical circular bore dia of locating piece (10) and is maintained on same median vertical line with red needle (5).

3. a kind of support for leisure chair according to claim 1 and 2 is with rushing flat perforating die, it is characterized in that: outside the left-external side of described locating piece (10) or left and right two, extruding is rushed the front side of flat piece (7) and is provided with the location bar (11) being fixed on base (3).

4. a kind of support for leisure chair according to claim 1 and 2 is with rushing flat perforating die, it is characterised in that: 2 described extruding are rushed two relative inclined-planes, interior lower end of flat piece (7) and are detachably fixed near the position at base angle and are connected to shaped block (12).

5. a kind of support for leisure chair according to claim 3 is with rushing flat perforating die, it is characterised in that: described rushes flat guiding mechanism (4) for rushing flat set screw.

6. a kind of support for leisure chair according to claim 5 is with rushing flat perforating die, it is characterised in that: the described bottom face rushing flat set screw is inclined-plane, and it is identical that the gradient rushes flat piece of (7) upper end surface slope with extruding.

7. a kind of support for leisure chair according to claim 4 is with rushing flat perforating die, it is characterised in that: flat piece (7) are rushed in described extruding is right-angle triangle.