JPH0677912U - Bending device - Google Patents

Abstract

(57) [Abstract] [Purpose] The part to be machined that protrudes from the member surface can be bent at the shoulderless part that serves as the bending guide, and the bending position and bending amount can be adjusted, and two-stage bending can be performed. To obtain a bending device that can perform. [Structure] A pressure receiving tool that moves up and down is used as a backing plate, and a pressing tool that moves up and down vertically with respect to the pressure receiving tool and a pressing tool that moves back and forth horizontally with respect to the pressure receiving tool are provided so that the amount of advance and retreat of each tool can be adjusted. . [Effect] By adjusting the position of the pressure receiving tool and the amount of forward / backward movement of the pressing tool that moves back and forth vertically and horizontally, the work piece can be bent from the shoulderless portion that serves as the bending guide. It is possible to adjust the amount of bending and perform two-step bending.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 According to the present invention, since the bending positions of the plurality of work portions are located closer to the base than the tip of the member, and the work portion which does not have a bending shoulder is bent, two positions are provided. The present invention relates to an improvement of a bending apparatus having a compound pressing tool and pressure receiving tool capable of performing separate two-stage bending and independently adjusting the amount of bending of a work piece in two positions.

[0002]

[Prior art]

 As shown in FIG. 8 to FIG. 12, a known bending device of the related art uses the protruding base portions C of the plurality of processed portions A protruding from the front surface of the member B as the processing positions and the shoulders of the member B. Conventionally, a tool having a structure in which two-step bending is performed by using E as a stopper and pressing tools D and F as bending tools that alternately act in the vertical direction and the horizontal direction.

As shown in FIG. 11, a bending tool D vertically moving up and down as shown in FIG. 11 operates in a double arrow P-P direction with respect to a portion A to be processed at a processing position shown in FIG. As a backing for the processing section A, first, a bending process is performed, and then a bending tool F that moves forward and backward in the horizontal direction is performed in the double arrow Q-Q direction, as shown in FIG. The processed part A is further bent by the secondary bending process using the shoulder E as a backing plate, and is further bent at the position of the shoulder E to a fixed position of 90 degrees.

Therefore, as shown in FIGS. 10 and 11, the bending process described above is performed by using the shoulder E of the member B as a backing plate, and other parts of the shoulder E of the member A are performed. When the minute is set as the processing position, the bending device having this structure has a drawback that the processing becomes difficult.

Further, when the portion A to be processed is at a plurality of positions as shown in FIG. 9 and the bending positions are different positions X and Y, respectively, a conventional bending device having a structure using a bending tool is used. However, there is a drawback that two-step bending cannot be performed at the same time at multiple processing positions, and the same process must be repeated multiple times to perform bending, which increases the number of processing steps and improves productivity. There is a drawback in that it cannot be achieved.

[0006]

[Problems to be solved by the device]

 In view of the current state of the conventional bending apparatus described above, the present invention provides a bending apparatus in which the bending positions of a plurality of parts to be processed are located closer to the base than the tip and bending is possible even in a position without a shoulder for bending. The challenge is to provide.

Further, even when the processing positions of a plurality of parts to be processed are different and the bending amounts are different, the bending amount can be adjusted, and a plurality of bending tools can be combined at the same time to cope with one pressing tool or the tool. It is an object of the invention to provide a bending device capable of performing two-step bending by using the pressure-receiving tool as a pad and improving the processing accuracy and productivity of the product.

[0008]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, in the present invention, a plurality of vertically-movable embossing tools are set at the highest position at the upper, lower, front, and rear processing positions for the plurality of processed parts protruding to the front. A plurality of embossing tools that can be moved up and down to an arbitrary processing position between the lowest position and the two positions, and that can move forward and backward in the horizontal direction, can be set between the highest position and the last position. It is arranged so that it can move back and forth up to the processing position.

Further, a plurality of common pressure receiving tools corresponding to the processing positions of the both pressing tools are arranged for position adjustment automatically, and vertical bending processing and front-back bending processing are alternately performed. Adopted a configuration that can be.

[0010]

[Action]

 According to the present invention, when a plurality of workpieces protruding to the front surface are transferred to the processing position, the vertical pressing tool vertically descends toward the workpieces at the processing position. At this time, a plurality of common pressure-receiving tools arranged facing the stamping tool move vertically to a predetermined position toward the machining position, and corresponding to the stamping tool, the workpiece to be machined at the machining position is processed. It becomes a backing plate that acts as each different shoulder to be a backing, and by the pressing tool and the pressure receiving tool, a certain degree of bending operation at the processing position of the processed portion, that is, temporary bending of each different bending amount is performed, The first step of the two-fold folding process is performed.

Next, when the primary bending work is completed and the stamping tool is raised and returned to the start position, each of the other stamping tools acting in the horizontal direction is directed toward the work part in the state of being temporarily bent. And move forward horizontally.

[0012] At this time, the pressure receiving tool is also a metal plate for each of the temporarily bent processing positions of the processed portion even with respect to the action of the pressing tool in the horizontal direction. Since it has a shape that can be used as a common pressure receiving tool for the pressing action of the pressing tool in both the vertical direction and the horizontal direction, by providing the pressure receiving tool as the guide tool, the bending position can be changed. Bending can be performed at positions different from the tip of the member toward the base and without shoulders for different bending, and the same tool can be used to press in the vertical and horizontal directions at the processing position. Due to the action, two-step bending can be performed at the same time, and the bending action is accurately given to a fixed position.

The forward vertical stamping tool and the horizontal vertical stamping tool are both bending tools, each of which is composed of at least two types of parts, and is made to correspond to each of the different processed parts. The pressure receiving tool, which is a bending guide tool that moves vertically toward a predetermined position, has a bending position that is slightly different from the work piece that has one bending position. Since the parts to be machined have corresponding shapes and are capable of simultaneously performing bending work on both the parts to be machined, both parts to be machined are temporarily bent to some extent at the same time. Moreover, since the same bending tool can be used to perform two-step bending, there is no need for separate bending work, labor savings can be achieved, and productivity can be expected to improve.

[0014]

【Example】

 1 to 7 show an embodiment of the present invention, in which one shown in FIG. 1 is used for processing a plurality of workpieces 2 projected on the front surface of a member 1 having projections 6 on both sides. The part is located closer to the base than the tip of the member 1 and does not have a shoulder for bending, and the plurality of parts to be processed 2 are bent at different angles at different positions. It shows the shape.

In the following description of the present embodiment, an example in which two different positions of the adjacent two to-be-processed portions 2A and 2B of the plurality of to-be-processed portions 2 are bent as processing positions 2a and 2b, respectively. Will be described.

FIG. 3 is a view taken in the direction of arrow AA shown in FIG. 1, in which the processed parts 2A and 2B are shown in a superposed state, and they are at different positions. The processing positions 2a and 2b are both portions that do not have shoulders for bending work, and as shown in FIG. 3, with respect to the processing positions 2a and 2b, in the direction of the double arrow P-P in the vertical direction. The stamping tool 3 that can be moved up and down is arranged so as to be able to reciprocate between two positions, which are not shown in the drawing, that is, the highest position and the lowest position, and the processing position is an arbitrary processing position. It can be raised and lowered to the positions 2a and 2b.

Further, the embossing tool 5 which can be freely moved back and forth in the direction of the double arrow QQ in the horizontal direction with respect to the machining positions 2a and 2b has two positions of the most advanced position and the most advanced position which are omitted in the drawing. It is arranged so that it can reciprocate between the positions, and can be moved back and forth to the processing positions 2a and 2b which are arbitrary processing positions.

The pressure receiving tool 4 corresponding to the pressing tool 3 that performs the pressing operation at the processing positions 2 a and 2 b is located below the work parts 2 A and 2 B, and is opposed to the pressing tool 3. However, it is arranged so as to vertically move up and down toward a predetermined position.

Further, the pressure receiving tool 4 has a rectangular outer shape, and the upper end surface 11A is a shoulder at the time of bending for giving a pressing action to the processing positions 2a and 2b, and as shown in FIG. It is L-shaped and has a stepped portion formed with a predetermined dimension L1. One edge 9 corresponds to the machining position 2b, and the other edge 10 serves as a bending shoulder corresponding to the machining position 2a. It is something that is acted upon.

The dimension L1 is based on the dimensional difference in the positions between the different machining positions 2a and 2b of the adjacent workpieces 2A and 2B, and the pressure receiving surfaces 12 and 11 of the stepped portions are the machining positions. It is shaped so as to act as a metal plate for two-step bending by the horizontal pressing tool 5 with respect to 2a and 2b.

The embossing tool 3 has a shape corresponding to two adjacent parts to be machined 2A, 2B which are adjacent to each other but have different machining positions, and which exerts a pressing action, as shown in FIG. As described above, the horizontal cross section is L-shaped, and the lower end 12A is formed with a stepped portion having a predetermined dimension L2 that exerts a pressing action on the processing positions 2a and 2b. One edge 8 of the stepped portion is The other end edge 7 corresponds to the processing position 2a and is a tool portion that applies a pressing action corresponding to the processing position 2b, and is temporarily bent with the pressure receiving tool 4 with respect to the processed portions 2A and 2B. It gives an action.

Further, the dimension L2 is determined by the dimensional difference between the processing positions 2a and 2b depending on each of the adjacent processed portions 2A and 2B and the distortion of the material due to the pressing action when bending, or the mechanical properties. This is determined in consideration of the bending margin that occurs due to different bending amounts.

As shown in FIGS. 1 and 5, when the work portions 2A and 2B are adjacent to each other and the processing positions 2a and 2b are different from each other and the bending positions are different, the horizontal pressing is performed. The mold tool 5 corresponds to the machining positions 2a and 2b, and is formed integrally by the mold tools 5A and 5B having a structure in which tools having two adjacent cutting edges are combined and the positions of the cutting edges are mutually adjustable. This structure corresponds to the fact that the portions to be processed 2A, 2B have different bending amounts due to strain due to press or the mechanical properties of the material, and the bending amount is different for each processing position 2a, 2b. It is a single bending tool that is composed of two press-fitting tools 5A and 5B that can be adjusted.

The integrated die tool 13X shown in FIG. 2 is configured to correspond to all the processing positions of the plurality of workpieces 2 and 13 shown in FIG. 1, and each has a bending shoulder. The portion which is not processed corresponds to a plurality of machining positions 2b, 13a located on the tip end side of the member and a plurality of machining positions 2a, 13b near the base, respectively, with respect to the machining positions 2a, 13b. Is a plurality of stamping tools 13B having protruding blade tips, and a plurality of stamping tools 13A having short blade tips for the processing positions 2b and 13a. Similar to the stamping tool 5 including the stamping tools 5A and 5B, a plurality of tools 13A and 13B are combined to form one stamping tool 13X.

Therefore, the combination of the horizontal die pressing tool 13X and the vertical die pressing tool 3 and the pressure receiving tool 4 common to the vertical die pressing tool 3 at a plurality of machining positions 2b, 13a, 2a, 13b, respectively. The same bending work as in the case shown is performed, which enables more precise product processing and improves productivity.

The operation of the vertical pressing tool 3, the horizontal pressing tool 5 and the pressure receiving tool 4 having the above-described configuration will be described with reference to FIGS. When the part 2 is moved to a fixed position where it is pressed, the bending process is performed at the processing positions 2a and 2b, and the pressure receiving tool 4, which is a bending guide tool that moves in the direction of the arrow PP, moves on the processed part 2. In the vertical direction, the workpiece 2 is moved to a fixed position near the side of the workpiece 2.

Next, as shown in FIG. 4, the stamping tool 3 is vertically operated in the double arrow P-P direction, that is, toward the processed portion 2, and the pressure receiving tool 4 is used as a backing metal to edge 9, 10. Is used as a door for bending, and the workpiece 2 is temporarily bent to a certain degree at the processing positions 2a and 2b.

Next, when the stamping tool 3 moves up and returns to the origin position and is separated from the machining positions 2a and 2b, the stamping tool 5 that operates in the horizontal direction moves in the double arrow Q-Q direction, that is, on the workpiece 2. The pressure receiving surfaces 11 and 12 are applied by using the pressure receiving tool 4 as a common guide tool with respect to the to-be-processed part 2 that is actuated toward and is temporarily bent at the processing positions 2a and 2b. It is bent as gold and bent to a fixed position as shown in FIG. The operation of the stamping tool 13X is exactly the same as that of the stamping tool 5.

At this time, by adjusting the position of the cutting edge of each of the two-blade stamping tools 5A and 5B forming the horizontal stamping tool 5 in the direction of the arrow Q-Q, the processing position of the processed part 2 is adjusted. The final bending amount in 2a and 2b can be adjusted independently.

[0030]

【effect】

 In the present invention, since the bending positions of the plurality of processed parts are closer to the base part than the front end of the member and the member that does not have the shoulder for bending is bent, it is possible to vertically move to the plurality of processing positions. Arranged so that the position of the pressing tools that move up and down, the pressing tools that move forward and backward in the horizontal direction, and the pressure receiving tool that is a common guide tool corresponding to the processing positions of both pressing tools can be adjusted freely. By doing so, it is possible to easily perform bending work even at a position where there is no shoulder for bending, and it is possible to achieve the effect of enabling two-step bending.

Further, by using a tool that can be aligned with two blades as the horizontal pressing tool, even if the amount of bending is different for each part to be processed due to distortion due to press or mechanical properties of the material, Since the amount of bending can be adjusted for each processing part, more precise products can be obtained and efficient processing can be performed, thus improving productivity.

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing an appearance in which a protruding processed portion is bent without a shoulder.

FIG. 2 is a schematic perspective view of an example of an embodiment of a stamping tool used for bending a work part shown in FIG.

FIG. 3 is a partially enlarged side view showing a relationship between a processed portion and each tool based on an enlarged sectional view taken along the line AA of FIG.

FIG. 4 is a partially enlarged side view showing the provisional bending of the tool shown in FIG. 3 with a vertical pressing tool.

5 is a partially enlarged side view showing the final bending of the tool shown in FIG. 3 with a horizontal embossing tool. FIG.

6 is a BB arrow view of what is shown in FIG. 3. FIG.

FIG. 7 is a sectional view taken along the line CC of FIG.

FIG. 8 is a schematic perspective view showing the appearance of a protruding processed portion before being bent by a conventional mechanism.

FIG. 9 is a schematic oblique view showing an external appearance before bending, which shows processing positions X and Y of a protruding processed portion according to a conventional mechanism.

FIG. 10 is a partially enlarged side view of the member in which the protruding base portion of the processed portion is at the processing position before bending.

FIG. 11 is a partially enlarged side view showing the temporary bending of the tool shown in FIG. 1 in the vertical pressing tool.

FIG. 12 is a partially enlarged side view showing the final bending of the tool shown in FIG. 11 by the horizontal embossing tool.

[Explanation of symbols]

 2, 2A, 2B, 13 Worked part 3 Stamping tool 4 Pressure receiving tool 5, 5A, 5B, 13, 13A, 13B Stamping tool 2a, 2b, 13a, 13b Machining position P-P vertical direction Q-Q horizontal direction

Claims (1)

[Scope of utility model registration request] 1. A plurality of stamping tools vertically movable up and down at a plurality of processing positions above, below, front and back with respect to a plurality of processed parts projecting to the front surface, and have a maximum rising position and a lowering position.
It is arranged so that it can be raised and lowered to any machining position between positions, and multiple stamping tools that can be moved forward and backward in the horizontal direction can be advanced and retracted to any machining position between the two positions of the most advanced position and the most advanced position. And a plurality of common pressure-receiving tools corresponding to the machining positions of the two press-type tools are positionally adjustable.