CN114833256A - Section bar forming die with closed section - Google Patents

Abstract

The invention provides a closed-section profile forming mold, comprising an upper slider, a large mold handle is fixedly connected to one side of the lower surface of the upper slider, and a pressure rod is detachably and fixedly connected to the bottom end of the large mold handle. The lower surface of the pressing rod is detachably and fixedly connected with a pressing bar, and a connecting mechanism is provided between the inside of the pressing rod and the pressing bar. The closed-section profile forming die of the present invention can directly perform closed-type bending forming on the workpiece. Since the pressing rod and the bead are inside the workpiece, the closed-section workpiece can be directly produced. After the workpiece is formed, the moving and rotating mechanism is set , so that the hoop can be kept away from the pressing rod without disassembling, so that the workpiece can be pulled out from the pressing rod. Through the provided connecting mechanism, the rotating rod rotates and drives a plurality of first bevel gears to rotate at the same time, thereby passing through a plurality of second bevel gears. The bevel gear drives multiple studs to rotate at the same time, so as to cooperate with the threaded holes to realize the quick disassembly and installation of the bead, which is convenient to use.

Description

A closed-section profile forming die

technical field

The invention relates to the technical field of forming molds, in particular to a closed-section profile forming mold.

Background technique

A bending machine is a machine that can bend thin plates. Its structure mainly includes a bracket, a worktable and a clamping plate. The bending machine is an important equipment for bending and forming workpieces in the sheet metal industry. Parts that need to be pressed into various shapes;

For some common bending parts, the cross-sectional forms are similar to V-shaped, grooved, semicircular or wavy shapes, and their cross-sectional forms are open, and the bending machine can handle these workpieces better, but for some closed Sections, such as beams with circular, mouth-shaped or rectangular sections, as the bending progresses, the die handle of the bending machine will inevitably interfere with the workpiece during bending, and there is no way to perform the final closing. processing.

SUMMARY OF THE INVENTION

(1) Technical problems solved

In view of the deficiencies of the prior art, the present invention provides a profile forming die with a closed section, which solves the problem that the existing bending machine has a closed section, such as a beam body with a circular, mouth-shaped or rectangular section. During the bending process, the die handle of the bending machine will inevitably interfere with the workpiece during bending, and there is no way to carry out the final closed processing problem.

(2) Technical solutions

In order to achieve the above purpose, the present invention is achieved through the following technical solutions: a closed-section profile forming die, comprising an upper slider, and a large mold handle is fixedly connected to one side of the lower surface of the upper slider, and the large mold handle is A pressure rod is detachably and fixedly connected to the bottom end of the pressure rod, and a pressure bar is detachably and fixedly connected to the lower surface of the pressure rod. The position of the mold handle is fixedly connected with a small mold handle, one end of the pressing rod is sleeved and installed with a hoop, and a connection rotating mechanism is provided between the hoop and the small mold handle, and the center of the lower surface of the upper slider is installed. The position is fixedly connected with a central support mechanism.

Preferably, a half ring is fixedly connected to the bottom of the large die handle by bolts, two clamping blocks are symmetrically and fixedly connected to the outer surface of one end of the pressing rod, and the bottom of the large die handle and the outer surface of the half ring are both A card slot matched with the card block is opened.

Preferably, the connecting mechanism includes an installation groove formed on the lower surface of the pressure rod, the top of the pressure strip is slidably connected to the inner wall of the installation groove, the upper surface of the pressure rod is provided with a hollow groove, and the bottom of the hollow groove penetrates through A plurality of studs are rotatably connected, and the top of the bead is provided with threaded holes for threaded connection with the studs.

Preferably, a rotating rod is rotatably connected through the interior of the hollow slot, a plurality of first bevel gears are fixedly connected to the outer surface of the rotating rod in sequence, and the top end of the stud is fixedly connected with the first bevel gears. of the second bevel gear.

Preferably, one end of the rotating rod extends to the outside of the pressing rod and is fixedly connected with a knob, an outer surface of the rotating rod is threadedly connected with a locking nut, and a top cover is embedded in the hollow groove.

Preferably, the connecting and rotating mechanism includes a long groove formed on the lower surface of the small die handle, limit slots are symmetrically formed on both sides of the inner wall of the long groove, and a round rod is slidably and rotatably connected between the two limit grooves. A telescopic rod is fixedly connected to the bottom end of the round rod, and the bottom end of the telescopic rod is fixedly connected to the top of the hoop.

Preferably, the top of the telescopic rod is slidably connected with the inner wall of the long groove, and the outer surface of the telescopic rod is threadedly connected with locking screws.

Preferably, the central support mechanism includes a hydraulic cylinder, and the bottom end of the movable end of the hydraulic cylinder is detachably and fixedly connected with a special-shaped indenter.

Working principle: Connect the upper slide block with the output end of the press, place the workpiece under the bead, and then perform closed bending forming on the workpiece. Since the pressure bar and the bead are inside the workpiece, the closed section can be directly produced When the workpiece is formed, loosen the hoop and the locking screw, and then pull the telescopic rod. When the hoop moves out of one end of the pressure rod, rotate the telescopic rod upward through the round rod to keep the hoop away from the pressure rod, so that the The workpiece is pulled out from the pressing rod. When a different pressing bar needs to be replaced, first loosen the lock nut, and then turn the knob. The second bevel gear drives a plurality of studs to rotate at the same time, so as to cooperate with the threaded holes to realize the quick disassembly and installation of the bead, which is convenient for use.

(3) Beneficial effects

The invention provides a profile forming die with a closed section. Has the following beneficial effects:

The closed-section profile forming die of the present invention can directly perform closed-type bending forming on the workpiece when bending the workpiece. Since the pressing rod and the bead are inside the workpiece, the workpiece with a closed-section can be directly produced. When the workpiece is After forming, the set moving and rotating mechanism keeps the hoop away from the pressing rod without disassembling, so that the workpiece can be pulled out from the pressing rod. By rotating, the plurality of second bevel gears are simultaneously driven to rotate the plurality of studs, so as to cooperate with the threaded holes to realize the quick disassembly and installation of the bead, which is convenient for use.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

2 is a schematic diagram of the connection structure of the large die handle and the pressure rod of the present invention;

Fig. 3 is the perspective view of the pressing rod and pressing bar of the present invention;

Figure 4 is a side sectional view of the pressing rod and the pressing bar in the present invention;

Fig. 5 is the structural representation of the connection rotating mechanism in the present invention;

Figure 6 is a side sectional view of the small die handle in the present invention.

Among them, 1. Upper slider; 2. Large die handle; 3. Pressing rod; 4. Pressing bar; 5. Center support mechanism; 51. Hydraulic cylinder; 52. Special-shaped indenter; 6. Small die handle; 7. Hoop ; 8, half ring; 9, clamping block; 10, card slot; 11, installation slot; 12, empty slot; 13, stud; 14, threaded hole; 15, rotating rod; 16, the first bevel gear; 17, Second bevel gear; 18, knob; 19, lock nut; 20, top cover; 21, long slot; 22, limit slot; 23, round rod; 24, telescopic rod; 25, locking screw.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example:

As shown in Figures 1-6, an embodiment of the present invention provides a closed-section profile forming mold, including an upper slider 1, and a large mold handle 2 is fixedly connected to one side of the lower surface of the upper slider 1. The bottom end is detachably and fixedly connected with a pressing rod 3, the lower surface of the pressing rod 3 is detachably and fixedly connected with a pressing bar 4, a connecting mechanism is arranged between the inside of the pressing rod 3 and the pressing bar 4, and the lower surface of the upper slider 1 is far away from the large mold The position of the handle 2 is fixedly connected with a small mold handle 6, one end of the pressure rod 3 is sleeved and installed with a hoop 7, and a connection rotating mechanism is provided between the hoop 7 and the small mold handle 6, and the center of the lower surface of the upper slider 1 is provided. A central support mechanism 5 is fixedly connected in position.

The bottom of the large die handle 2 is fixedly connected with a half ring 8 by bolts, and the outer surface of one end of the pressure rod 3 is symmetrically and fixedly connected with two clamping blocks 9, and the bottom of the large die handle 2 and the outer surface of the half ring 8 are provided with and The clamping slot 10 matched with the clamping block 9 is convenient to limit the pressure rod 3 through the cooperation of the clamping groove 10 and the clamping block 9, so as to avoid the rotation of the pressure rod 3 during operation.

The connection mechanism includes an installation groove 11 opened on the lower surface of the pressure rod 3, the top of the pressure strip 4 is slidably connected to the inner wall of the installation groove 11, the upper surface of the pressure rod 3 is provided with an empty groove 12, and the bottom of the empty groove 12 is connected through a plurality of rotations. A stud 13 is provided, and the top of the bead 4 is provided with a threaded hole 14 threadedly connected with the stud 13 .

A rotating rod 15 is rotatably connected through the interior of the hollow groove 12 , a plurality of first bevel gears 16 are fixedly connected to the outer surface of the rotating rod 15 in sequence, and a second bevel gear 16 is fixedly connected to the top of the stud 13 . The bevel gear 17, the rotation of the rotating rod 15 drives the plurality of first bevel gears 16 to rotate at the same time, thereby simultaneously driving the plurality of studs 13 to rotate through the plurality of second bevel gears 17, thereby facilitating installation.

One end of the rotating rod 15 extends to the outside of the pressing rod 3 and is fixedly connected with a knob 18. The outer surface of the rotating rod 15 is threadedly connected with a locking nut 19, and a top cover 20 is embedded in the interior of the hollow slot 12. The knob 18 is easy to rotate. Rod 15, lock nut 19 In order to prevent the rotating rod from being reversed, the top cover 20 ensures the integrity of the surface of the pressing rod 3.

The connection and rotation mechanism includes a long groove 21 opened on the lower surface of the small die handle 6. Limiting grooves 22 are symmetrically provided on both sides of the inner wall of the long groove 21. A round rod 23 is slidably and rotatably connected between the two limiting grooves 22. The round rod 23 The bottom end of the telescopic rod 24 is fixedly connected with the telescopic rod 24, and the bottom end of the telescopic rod 24 is fixedly connected with the top of the hoop 7. Through the long groove 21 and the limit groove 22, the round rod 23 can be moved and the telescopic rod 24 can be rotated, so that there is no need to disassemble the Hoop 7.

The top of the telescopic rod 24 is slidably connected to the inner wall of the long slot 21 , and the outer surface of the telescopic rod 24 is threadedly connected with a locking screw 25 , so that the length of the telescopic rod 24 is easily limited.

The central support mechanism 5 includes a hydraulic cylinder 51, and the bottom end of the movable end of the hydraulic cylinder 51 is detachably and fixedly connected with a special-shaped indenter 52, which is convenient to support the central position of the pressure rod 3, and the special-shaped indenter 25 can be designed according to the specific situation to the pressure rod 3. and workpiece support.

It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion such that a process, method, article or device comprising a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus. Without further limitation, an element defined by the phrase "comprises a reference structure" does not preclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. A profile forming die with a closed section, comprising an upper slider (1), characterized in that: a large die handle (2) is fixedly connected to one side of the lower surface of the upper slider (1), and the large die A pressure rod (3) is detachably and fixedly connected to the bottom end of the handle (2), and a pressure bar (4) is detachably and fixedly connected to the lower surface of the pressure rod (3). 4) A connecting mechanism is provided between, the lower surface of the upper slider (1) is fixedly connected with a small mold handle (6) at a position away from the large mold handle (2), and one end of the pressure rod (3) is sleeved A hoop (7) is installed, and a connecting and rotating mechanism is provided between the hoop (7) and the small die handle (6), and a central support mechanism is fixedly connected to the center of the lower surface of the upper slider (1). (5). 2. A closed-section profile forming die according to claim 1, characterized in that: the bottom of the large die handle (2) is fixedly connected with a half ring (8) by bolts, and the pressing rod (3) Two clamping blocks (9) are symmetrically and fixedly connected to the outer surface of one end of the die handle (2), and the bottom of the large die handle (2) and the outer surface of the half ring (8) are provided with clamping grooves that cooperate with the clamping blocks (9). (10). 3. A closed-section profile forming die according to claim 1, wherein the connecting mechanism comprises a mounting groove (11) opened on the lower surface of the pressing rod (3), and the The top is slidably connected to the inner wall of the installation groove (11), the upper surface of the pressing rod (3) is provided with a hollow groove (12), and the bottom of the hollow groove (12) is rotatably connected with a plurality of studs (13) The top of the pressing strip (4) is provided with a threaded hole (14) threadedly connected with the stud (13). 4. A closed-section profile forming die according to claim 3, characterized in that: a rotating rod (15) is rotatably connected through the inside of the hollow groove (12), and the outer part of the rotating rod (15) is rotatably connected. A plurality of first bevel gears (16) are fixedly connected to the surface in sequence, and the top end of the stud (13) is fixedly connected with a second bevel gear (17) that meshes with the first bevel gears (16). 5. A closed-section profile forming die according to claim 4, wherein one end of the rotating rod (15) extends to the outside of the pressing rod (3) and is fixedly connected with a knob (18), so A locking nut (19) is threadedly connected to the outer surface of the rotating rod (15), and a top cover (20) is embedded and installed in the hollow groove (12). 6. A closed-section profile forming die according to claim 1, wherein the connecting and rotating mechanism comprises a long groove (21) opened on the lower surface of the small die handle (6), and the long groove ( Limiting grooves (22) are symmetrically arranged on both sides of the inner wall of 21), a round rod (23) is slidably and rotatably connected between the two limiting grooves (22), and the bottom end of the round rod (23) is fixedly connected with a A telescopic rod (24), the bottom end of the telescopic rod (24) is fixedly connected with the top of the hoop (7). 7. A closed-section profile forming die according to claim 1, wherein the top of the telescopic rod (24) is slidably connected to the inner wall of the long groove (21), and the A locking screw (25) is connected through the thread on the outer surface. 8. A closed-section profile forming die according to claim 1, characterized in that: the central support mechanism (5) comprises a hydraulic cylinder (51), and the bottom end of the movable end of the hydraulic cylinder (51) can be There is a special-shaped indenter (52) for the dismantling and fixing connection.

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