Crease-free type bending die

Abstract

The utility model provides a crease-free type bending die which comprises a rotating handle and a driving flywheel, a set of rotating handles used for driving lead screws to rotate are arranged on the outer side of the middle position of the rotating handle, and a set of lead screws used for driving a movable plate to move up and down are arranged at the lower ends of the rotating handles. A set of limiting sleeve shells used for keeping the lead screw to rotate vertically are arranged on the outer side of the middle position of the lead screw, a set of supporting shells used for conducting outer side limiting protection on the movable plates are arranged at the lower ends of the limiting sleeve shells, and a set of movable plates used for driving the inner rotating rod and the bending head to move up and down are arranged on the inner sides of the supporting shells. Compared with the prior art, the die bending device has the advantages that the position of the inner rotating rod is limited through the inner limiting bearing, a die is bent through the bending head, the two sets of power heads are driven to rotate through the transmission chain, and the stable rotating effect of the shaft rod is kept through the stable gear.

Description

Technical Field

[0001] The utility model belongs to the technical field of bending moulds and relates to a crease-free bending mould. Background Art

[0002] Bending dies, as a key tool for bending machines to form and process sheet materials, play a vital role in the metal processing industry. It is composed of a variety of parts and is designed to achieve the processing of the shape of objects by changing the physical state of the formed material. Bending dies are widely used in many fields such as automobiles, electronics, and construction. They are an indispensable part of the manufacturing industry. If creases are formed during the bending process, a series of problems will arise.

[0003] Creases may damage the functional performance of the product. For some precision parts or structural parts, creases may cause stress concentration, reducing the strength and durability of the parts. In the long-term use process, these creases may become potential breaking points and cause safety accidents. Therefore, a crease-free bending mold is urgently needed to solve the above problems. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a crease-free bending die to solve the problems raised in the above-mentioned background technology.

[0005] The utility model is realized by the following technical scheme: a crease-free bending mold, comprising: a rotating handle and an active flywheel, wherein a group of rotating handles for driving the screw rod to rotate are arranged outside the middle position of the rotating handle;

[0006] A set of screw rods is provided at the lower end of the rotary handle for driving the movable plate to move up and down, and a set of limiting sleeves is provided outside the middle position of the screw rod for keeping the screw rod rotating vertically;

[0007] A group of supporting shells for outer limiting protection of the movable plate are provided at the lower end of the limiting sleeve, a group of movable plates for driving the inner rotating rod and the bending head to move up and down are provided on the inner side of the supporting shell, and two groups of internal limiting bearings for limiting the position of the inner rotating rod are provided at the lower end of the movable plate. The position of the inner rotating rod can be limited by using the internal limiting bearings.

[0008] As a preferred embodiment, a group of inner rotating rods for driving the bending head to rotate are provided on the inner side of the two groups of inner limit bearings, and a group of bending heads for bending the mold are provided on the front side of the inner rotating rods, so that the mold can be bent by using the bending heads.

[0009] As a preferred embodiment, a group of power heads for driving the mold to move are provided on both sides of the bending press, a bracket for supporting it is provided at the lower end of the support shell, and a group of motors for providing power to the power heads are provided inside the bracket.

[0010] As a preferred embodiment, the front end of the right side of the motor is provided with a driving end for outputting power, the front side of the driving end is provided with a group of active flywheels for driving two groups of driven flywheels to rotate, and the outer side of the active flywheel is provided with a transmission chain for transmitting power, which can drive the two groups of power heads to rotate by using the transmission chain.

[0011] As a preferred embodiment, a driven flywheel for driving the power head to rotate is provided on the inner side of the upper end of the transmission chain, a group of shafts for transmitting power are provided in the middle position inside the driven flywheel, a group of connecting gears for stabilizing the rotational potential energy of the shafts are provided on the rear side of the shafts, and a group of stabilizing gears for stabilizing the rotation of the connecting gears are provided on the left side of the connecting gears. The stabilizing gears can be used to maintain the rotation stability of the shaft.

[0012] As a preferred embodiment, the middle position of each group of power heads is connected and fixed to a group of shafts, and a group of external limit bearings for limiting the rotation position are provided on the outer side of the shafts. Each group of shafts, power heads, driven flywheels, connecting gears and stabilizing gears constitute a group of power drive components, and the power drive components are provided in two groups.

[0013] As a preferred embodiment, a sealed bearing is provided at the connection between the lower end of the screw rod and the movable plate, and an internal thread groove which is screwed with the outer thread of the screw rod is provided inside the limiting sleeve.

[0014] After adopting the above technical scheme, the beneficial effects of the utility model are: by using the internal limit bearing to limit the position of the inner rotating rod, by using the bending head to bend the mold, by using the transmission chain to drive the two sets of power heads to rotate, and by using the stabilizing gear to maintain the stable rotation effect of the shaft rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a schematic diagram of the top view of the right oblique front side of a crease-free bending die of the utility model;

[0017] Figure 2 This is a schematic diagram of the front side plan view of the movable plate in a crease-free bending mold of the utility model;

[0018] Figure 3 It is a schematic diagram of the top view of the left rear side of a crease-free bending die of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of point A in a crease-free bending die of the utility model;

[0020] In the figure: 100-turn handle, 110-rotating handle, 120-screw rod, 130-limit sleeve shell, 140-support shell, 150-inner limit bearing, 160-inner rotating rod, 170-bending head, 180-power head, 190-bracket, 200-motor, 210-driven flywheel, 220-connecting gear, 230-stabilizing gear, 240-driving end, 250-active flywheel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-Figure 4 A non-crease type bending die comprises: a rotating handle 100, a bending head 170, a power head 180 and an active flywheel 250. A set of rotating handles 110 for driving a screw rod 120 to rotate is arranged outside the middle position of the rotating handle 100;

[0023] A set of screw rods 120 are provided at the lower end of the rotating handle 110 for driving the movable plate to move up and down, and a set of limiting sleeves 130 are provided outside the middle position of the screw rods 120 for keeping the screw rods 120 rotating vertically;

[0024] A group of support shells 140 for outer limiting protection of the movable plate are provided at the lower end of the limiting sleeve 130, and a group of movable plates for driving the inner rotating rod 160 and the bending head 170 to move up and down are provided on the inner side of the supporting shell 140. Two groups of internal limiting bearings 150 for limiting the position of the inner rotating rod 160 are provided at the lower end of the movable plate. The position of the inner rotating rod 160 can be limited by using the internal limiting bearings 150.

[0025] A group of inner rotating rods 160 for driving the bending head 170 to rotate are arranged on the inner side of the two groups of inner limit bearings 150 , and a group of bending heads 170 for bending the mold are arranged on the front side of the inner rotating rods 160 . The mold can be bent by using the bending heads 170 .

[0026] A group of power heads 180 for driving the mold to move are provided on both sides of the bending head 170, and a bracket 190 for supporting it is provided at the lower end of the support shell 140. A group of motors 200 for providing power to the power head 180 are provided inside the bracket 190.

[0027] A driving end 240 for outputting power is provided at the front right side of the motor 200, and a group of active flywheels 250 for driving the two groups of driven flywheels 210 to rotate are provided in front of the driving end 240. A transmission chain for transmitting power is provided on the outer side of the active flywheel 250, which can drive the two groups of power heads 180 to rotate by using the transmission chain.

[0028] The middle position of each power head 180 is connected and fixed to a set of shafts, and a set of external limit bearings for limiting the rotation position are provided on the outside of the shafts. Each set of shafts, power head 180, driven flywheel 210, connecting gear 220 and stabilizing gear 230 constitute a set of power drive components, and there are two sets of power drive components.

[0029] A sealed bearing is provided at the connection between the lower end of the screw rod 120 and the movable plate, and an internal thread groove that is screwed with the outer thread of the screw rod 120 is provided inside the limiting sleeve 130.

[0030] See also Figure 1-Figure 4 As the first embodiment of the utility model: In order to solve the problem that creases may damage the functional performance of the product, for some precision parts or structural parts, creases may cause stress concentration, reduce the strength and durability of the parts, and in the long-term use process, these creases may become potential breaking points, causing safety accidents. First, the staff will place the bar workpiece to be bent between the two sets of power heads 180 and the bending head 170, and then the staff will rotate the handle 100 and the handle 110 according to the thickness of the bar workpiece, and make the handle 110 drive the screw rod 120 to move downward along the inner side of the limit sleeve 130. After the movable plate moves downward, the lower end of the bending head 170 is fitted with the upper end of the bar workpiece to be bent, and the two sets of power heads 180 and the bending head 170 form a three-point support for the bar workpiece. Then the staff continues to rotate the screw rod 120 according to the required degree of bending, and makes the bending head 170 apply a bending force to the bar workpiece, and then bends the bar workpiece. Since the two sets of power heads 180 and the bending head 170 are both active bending with the bar workpiece and support the bar workpiece at multiple points at the same time, there will be no creases during the bending process of the bar workpiece, thereby ensuring the strength of the bar workpiece.

[0031] See also Figure 1-Figure 4 , as the second embodiment of the utility model: based on the elaboration in the above embodiment, further, since a driven flywheel 210 for driving the power head 180 to rotate is provided on the inner side of the upper end of the transmission chain, a group of shafts for transmitting power are provided in the middle position inside the driven flywheel 210, a group of connecting gears 220 for stabilizing the rotational potential energy of the shafts are provided on the rear side of the shafts, and a group of stabilizing gears 230 for stabilizing the rotation of the connecting gears 220 are provided on the left side of the connecting gears 220. When the motor 200 drives the two groups of driven flywheels 210 to rotate, the stabilizing gears 230 can limit the rotational potential energy of the connecting gears 220 and the shafts, thereby maintaining the rotational stability of the shafts.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A crease-free bending die, comprising: A rotating handle (100), a bending head (170), a power head (180) and a driving flywheel (250), characterized in that a group of rotating handles (110) for driving the screw rod (120) to rotate are arranged outside the middle position of the rotating handle (100); A set of screw rods (120) for driving the movable plate to move up and down is provided at the lower end of the rotating handle (110), and a set of limiting sleeves (130) for keeping the screw rods (120) rotating vertically is provided on the outer side of the middle position of the screw rods (120); A support shell (140) for protecting the movable plate from outer limit is provided at the lower end of the limit sleeve (130); a movable plate for driving the inner rotating rod (160) and the bending head (170) to move up and down is provided inside the support shell (140); and two sets of inner limit bearings (150) for limiting the position of the inner rotating rod (160) are provided at the lower end of the movable plate.

2. The crease-free bending die according to claim 1, characterized in that: A group of inner rotating rods (160) for driving a bending head (170) to rotate are arranged inside the two groups of inner limit bearings (150), and a group of bending heads (170) for bending the mold are arranged on the front side of the inner rotating rods (160).

3. The crease-free bending die according to claim 2, characterized in that: A group of power heads (180) for driving the mold to move are provided on both left and right sides of the bending press (170), a bracket (190) for supporting it is provided at the lower end of the support shell (140), and a group of motors (200) for providing power to the power head (180) are provided inside the bracket (190).

4. The crease-free bending die according to claim 3, characterized in that: The front end of the right side of the motor (200) is provided with a driving end (240) for outputting power, the front side of the driving end (240) is provided with a group of driving flywheels (250) for driving two groups of driven flywheels (210) to rotate, and the outer side of the driving flywheel (250) is provided with a transmission chain for transmitting power.

5. The crease-free bending die according to claim 4, characterized in that: A driven flywheel (210) for driving the power head (180) to rotate is provided on the inner side of the upper end of the transmission chain; a group of shafts for transmitting power are provided at the middle position inside the driven flywheel (210); a group of connecting gears (220) for stabilizing the rotational potential energy of the shafts are provided on the rear side of the shafts; and a group of stabilizing gears (230) for stabilizing the rotation of the connecting gear (220) are provided on the left side of the connecting gear (220).

6. The crease-free bending die according to claim 5, characterized in that: The middle position of each group of the power heads (180) is connected and fixed to a group of shafts, and a group of external limit bearings for limiting the rotational position of the shafts are arranged on the outside of the shafts. Each group of shafts, the power heads (180), the driven flywheels (210), the connecting gears (220) and the stabilizing gears (230) form a group of power drive components, and two groups of the power drive components are provided.

7. The crease-free bending die according to claim 1, characterized in that: A sealed bearing is provided at the connection between the lower end of the screw rod (120) and the movable plate, and an internal thread groove screwed with the outer thread of the screw rod (120) is provided inside the limiting sleeve (130).

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