CN212821981U

CN212821981U - Workpiece bending forming equipment

Info

Publication number: CN212821981U
Application number: CN202021628485.6U
Authority: CN
Inventors: 肖建伟; 夏宇鹏; 杨鹏举
Original assignee: Wuhan Hehe Auto Parts Co ltd
Current assignee: Wuhan Hehe Auto Parts Co ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-03-30
Anticipated expiration: 2030-08-07

Abstract

The utility model discloses a workpiece bending and forming device, which comprises a frame and more than one group of bending assemblies arranged on the frame, wherein each bending assembly comprises more than two bending tools with the same structure, and at least one bending tool is slidably arranged on the frame, so that the distance between two adjacent bending tools is adjustable; the bending tool comprises a clamp, a bending forming jig and a rotary driving mechanism; the clamp is arranged on the rack or a fixed part of the rotary driving mechanism; the bending forming jig is connected with the rotating part of the rotary driving mechanism, so that the bending forming jig is driven by the rotary driving mechanism to rotate for a set angle relative to the clamp. The utility model provides a work piece former of bending can once only accomplish all the shaping processes of bending of work piece or accomplish all the shaping processes of bending of work piece in proper order substep, by the mechanical equipment shaping of bending, technology shaping stable quality, and the volume production product quality is unanimous, and the frock suitability is strong.

Description

Workpiece bending forming equipment

Technical Field

The application belongs to the technical field of part machining devices, and particularly relates to workpiece bending and forming equipment.

Background

Non-load-bearing parts in modern high-end automobiles are generally developed in a direction of light weight and a small number of parts, and the parts are required to have higher strength or toughness in terms of performance. In automobiles, a plurality of bent workpieces are used, such as automobile seat back serpentine springs, automobile seat back steel wires and the like, and a single workpiece is often provided with a plurality of arcs or bent positions.

In the prior art, a workpiece bending forming process generally adopts stamping bending forming or manual forming by means of a common clamp, the forming quality of the process is unstable, and the quality of mass production products cannot be stably ensured.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a work piece former that bends can carry out the work piece forming technology that bends automatically, and volume production product stable quality.

The technical scheme adopted for realizing the purpose of the utility model is that the workpiece bending forming equipment comprises a frame and more than one group of bending assemblies arranged on the frame, wherein each bending assembly comprises more than two bending tools with the same structure, and at least one bending tool is slidably arranged on the frame, so that the distance between two adjacent bending tools is adjustable; the bending tool comprises a clamp, a bending forming jig and a rotary driving mechanism; the clamp is mounted on the rack or a fixed part of the rotary driving mechanism; the bending forming jig is connected with the rotating part of the rotary driving mechanism, so that the bending forming jig is driven by the rotary driving mechanism to rotate for a set angle relative to the clamp.

Optionally, the bending tool is slidably mounted on the rack through a sliding rail; and the slide rail is provided with a locking bolt.

Optionally, the bending tool is slidably mounted on the frame through two spaced and parallel slide rails, a base is arranged below the bending tool, and two slide grooves matched with the slide rails are formed in the bottom surface of the base.

Optionally, the number of the groups of bending assemblies is the same as the number of bending forming processes of the workpiece to be processed.

Optionally, the rack is provided with mounting planes forming an obtuse angle with each other, and the bending assemblies of different groups are respectively mounted on different mounting planes.

Optionally, the fixture is two parallel clamping plates, and the distance between the two clamping plates is matched with the thickness of the workpiece to be processed.

Optionally, the rotary driving mechanism is a swing rotary cylinder, the fixture is fixedly mounted on a cylinder body of the swing rotary cylinder through a mounting plate and is close to a rotary terminal of the swing rotary cylinder, and the bending forming jig is connected with the rotary terminal of the swing rotary cylinder.

Optionally, the bending forming jig is a plate.

Optionally, the workpiece bending and forming device further comprises a pneumatic control system for supplying air to the swing rotary cylinder.

Optionally, a power supply control box is arranged on the rack, and the air pressure control system is located in the power supply control box; and a starting switch of the power supply control box is externally arranged on the rack.

According to the above technical scheme, the utility model provides a workpiece bending forming equipment installs a set of at least subassembly of bending in the frame, and every group bending subassembly all can carry out the shaping process of bending one. The bending assembly comprises a plurality of bending tools with the same structure, and each bending tool can perform a bending forming process step. The bending tool comprises three parts, wherein the clamp is used for clamping a workpiece to be formed, the bending forming tool is driven by the rotary driving mechanism to rotate for a set angle relative to the clamp, and when the bending forming tool acts on the workpiece to be formed, the part, between the clamp and the bending forming tool, in the workpiece can be bent. Each bending tool can perform a bending forming process of designing a bending point, and all bending forming processes of the workpiece can be completed at one time or all bending forming processes of the workpiece can be completed step by step sequentially through the multiple groups of bending assemblies and the multiple bending tools.

In every group bending assembly, the position that sets up a frock of bending at least is adjustable to make two adjacent frock of bending's interval adjustable, adopt this structure to make the utility model provides a work piece former of bending can be applied to different models, the fashioned work piece of different kinds' needs of bending.

Compared with the prior art, the utility model provides a workpiece bending forming device can once only accomplish all the forming processes of bending or all the forming processes of bending of work piece in proper order of substep of work piece, by the mechanical equipment shaping of bending, technology shaping stable quality, and the volume production product quality is unanimous. And the utility model provides a but the workpiece bending former is quick adjustment, sharing when being applied to different models, different kind work pieces, and the suitability is strong.

Drawings

Fig. 1 is a schematic structural view of a workpiece bending and forming apparatus in an embodiment of the present invention;

FIG. 2 is a first operating state diagram of the bending and forming apparatus for workpieces shown in FIG. 1;

FIG. 3 is a second operational view of the apparatus of FIG. 1;

fig. 4 is a block diagram of a forming process of the serpentine spring.

Description of reference numerals: 100-workpiece bending and forming equipment; 10-a frame, 11-a mounting plane; 20-bending the assembly; 30-bending tool, 31-clamp, 32-bending forming jig, 33-rotary driving mechanism, 34-mounting plate and 35-rotating part; 40-a slide rail; 50-a base; 60-power supply control box; 70-start switch; 200-serpentine spring.

Detailed Description

In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings by way of specific embodiments.

In the embodiment of the present invention, a workpiece bending and forming apparatus 100 is shown in fig. 1, and includes a frame 10 and more than one bending assembly 20 installed on the frame 10, each bending assembly 20 can perform a bending and forming process, so that the number of the bending assemblies 20 is preferably set to be the same as the number of the bending and forming processes of the workpiece to be processed, and all the bending and forming processes of the workpiece are sequentially completed through the plurality of bending assemblies 20, and this setting form is particularly suitable for pipeline batch production.

In order to achieve process consistency and facilitate an operator in a subsequent process to take a workpiece machined in a previous process, as a preferred embodiment, mounting planes 11 forming an obtuse angle with each other are arranged on the rack 10, and different groups of bending assemblies 20 are respectively mounted on different mounting planes 11. And should be positioned such that the mounting plane 11 of the subsequent process bend assembly 20 is higher than the mounting plane 11 of the previous process bend assembly 20.

Frame 10 adopts steel structure bracket, satisfy equipment fixing intensity can, concrete structure the utility model discloses do not do the restriction. The housing 10 may be provided as a single body or as separate bodies, for example, as separate structures with the mounting planes 11 being independent of each other. And a foot seat or a caster can be arranged at the bottom of the frame 10 according to requirements, and the caster can be a caster with a brake and the like.

The bending assembly 20 includes more than two bending tools 30 with the same structure, and each bending tool 30 can perform one bending forming step, so that the number of groups of the bending tools 30 is preferably set to be the same as the number of bending steps (which is equivalent to the number of points to be bent in the bending forming process) included in one bending forming process of a workpiece to be processed, all the steps in one bending forming process of the workpiece are completed at one time through the plurality of bending tools 30, and the uniform bending forming quality is ensured.

In order to adapt to workpieces of different types and types to be bent, at least one bending tool 30 is slidably mounted on the frame 10 in each group of bending assemblies 20, so that the distance between two adjacent bending tools 30 is adjustable. The most preferred embodiment should be that, if the bending assembly 20 includes N bending tools 30, N-1 bending tools 30 should be slidably mounted on the frame 10, and one of the outermost bending tools 30 is fixedly mounted and is not adjustable in position.

Specifically, in this embodiment, the bending tool 30 is slidably mounted on the frame 10 through a slide rail 40, a locking bolt is disposed on the slide rail 40, and after the bending tool 30 is adjusted in place, the position of the bending tool 30 is locked through the locking bolt. As a preferred mode, the bending tool 30 is slidably mounted on the frame 10 through two slide rails 40 arranged in parallel at intervals, a base 50 is arranged below the bending tool 30, two slide grooves matched with the slide rails 40 are formed in the bottom surface of the base 50, the base 50 and the slide rails 40 form a guide rail slider pair, and the base 50 serves as a slider when being used for mounting the bending tool 30.

Specifically, referring to fig. 1, the bending tool 30 specifically includes a clamp 31, a bending forming fixture 32, and a rotary driving mechanism 33. The clamp 31 is used for clamping a workpiece to be formed, and the clamp 31 is installed on the fixed part of the frame 10 or the rotary driving mechanism 33; the bending forming jig 32 is connected to a rotating portion 35 of the rotary driving mechanism 33, the bending forming jig 32 is driven by the rotary driving mechanism 33 to rotate by a predetermined angle with respect to the jig 31, a portion of the workpiece held by the jig 31 is fixed, and a portion of the workpiece acting on the bending forming jig 32 rotates, so that the relative movement caused by the rotation causes the portion of the workpiece between the jig 31 and the bending forming jig 32 to be bent by the predetermined angle.

In the preferred embodiment, the clamp 31 is two parallel clamping plates, and the distance between the two clamping plates is matched with the thickness of the workpiece to be processed. The bending forming jig 32 is a plate, the plane of the clamping plate should be parallel to the plane of the plate in the initial state, the side edge of the plate close to the clamping plate is used as a rotating shaft of the plate, the displacement of the workpiece in the thickness direction is limited by the clamping plate, and the bending point is guaranteed not to move in the thickness direction and in the axial direction and only bends when being bent and formed.

The rotary driving mechanism 33 is used for driving the bending forming jig 32 to rotate according to a set angle, and any conventional rotary device with adjustable output angle, such as a servo motor, a swing rotary cylinder, etc., can be used as the rotary driving mechanism 33. The specific structure of the utility model is not limited. In order to reduce the control difficulty and simplify the structure of the device, in this embodiment, the rotation driving mechanism 33 employs a swing rotation cylinder, the clamp 31 is fixedly mounted on the cylinder body of the swing rotation cylinder through a mounting plate 34 and is close to the rotation terminal of the swing rotation cylinder, and the bending forming fixture 32 is connected with the rotation terminal of the swing rotation cylinder.

To control the oscillating rotary cylinder, the work bending apparatus 100 is further provided with a pneumatic control system for supplying air to the oscillating rotary cylinder. The air pressure control system controls the on-off of the air path through the electromagnetic valve, and adjusts the air supply flow through the adjusting valve, so as to control the action and the output angle of the swing rotary cylinder. The pneumatic control system is prior art, and the specific pneumatic circuit is not described herein.

Correspondingly, a power supply control box 60 is arranged on the frame 10, the air pressure control system is positioned in the power supply control box 60, only the air pipe extends out and is connected with the swinging rotary cylinder, a control circuit board is packaged in the power supply control box 60, and the control circuit board controls the working conditions of all electric equipment in the equipment. For the convenience of control, the start switch 70 of the power control box 60 is externally mounted on the mounting plane 11 of the chassis 10, as shown in fig. 1.

Application example: automobile seat back snake spring.

Serpentine springs are important parts in car seat backs. The serpentine spring is also called as S spring or tension spring, and is shaped like letter S, and has a stretching function. The forming process of the serpentine spring is shown in fig. 4, after the serpentine spring is taken, two bending forming processing procedures are needed, and bending of two point positions is needed in each procedure.

According to the specific forming process of the serpentine spring, 2 groups of bending assemblies 20 are arranged in the workpiece bending forming device 100, the 2 groups of bending assemblies 20 are respectively arranged on two different installation planes 11, and one installation plane 11 is a horizontal plane and the other installation plane 11 is a 135-degree inclined plane. Each group of bending assemblies 20 comprises 2 bending tools 30, one of the 2 bending tools 30 is fixed, the other bending tool is installed on the sliding rail 40, and the bending tools 30 adopt the swing rotary cylinder to provide bending power. The concrete structure of the work bending apparatus 100 is shown in fig. 1.

The specific operation method of the workpiece bending forming device 100 is as follows:

1. placing the serpentine spring product 200 into the bending assembly 20 of the horizontal installation plane 11, wherein the two to-be-bent positions of the serpentine spring 200 are clamped by the clamps of 2 bending tools 30, as shown in fig. 2; the starting switch 70 is pressed, the air cylinder 33 works, the bending forming jig 32 is driven to rotate relative to the clamp 31 by a set angle, and the first procedure of the steering bending forming process is completed.

2. The product 200 in the first process is placed in the bending assembly 20 of the inclined plane installation plane 11, the two positions to be bent of the serpentine spring 200 are clamped by the clamps of the 2 bending tools 30, the start switch 70 is pressed, the air cylinder 33 works, the bending forming jig 32 is driven to rotate relative to the clamp 31 by a set angle, the second process of the turning bending forming process is completed, and the shape of the final product is completed, as shown in fig. 3.

The former traditional technology shaping of this workshop uses manual shaping, and 2185 of original production efficiency class production (8 hours/class), need 2 operating personnel to make and accomplish, and the product that produces has the fluctuation instability of quality, and the product percent of pass is only 70%. By adopting the workpiece bending forming equipment of the embodiment, the number of finished products is increased to 3496, the production efficiency is increased by 60%, only 1 operator is needed to complete the manufacturing, the waste of the operator is reduced by 50%, the quality of batch products is high and uniform, the product percent of pass can reach more than 99%, the quality of the produced products is increased by 40%, and the tool can be quickly adjusted and shared for different models of products, so that the tool cost is saved by 50%.

Through the embodiment, the utility model has the following beneficial effect or advantage:

1) the utility model provides a work piece former of bending can once only accomplish all the forming process of bending or the substep of work piece accomplish all the forming process of bending of work piece in proper order of work piece, by the mechanical equipment shaping of bending, technology shaping stable quality, and the volume production product quality is unanimous.

2) The utility model provides a but workpiece bending former is quick adjustment when being applied to different models, different kind work pieces, sharing, and the suitability is strong, can obviously practice thrift the frock cost of enterprise.

3) The utility model provides a work piece former that bends adopts cylinder drive splint to rotate with the plate relatively, bends the work piece, and pneumatic control is simple, swift, frock simple structure, easy to carry out.

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. The utility model provides a work piece former that bends which characterized in that: the bending device comprises a rack and more than one group of bending assemblies arranged on the rack, wherein each bending assembly comprises more than two bending tools with the same structure, and at least one bending tool is slidably arranged on the rack so that the distance between every two adjacent bending tools is adjustable;

the bending tool comprises a clamp, a bending forming jig and a rotary driving mechanism; the clamp is mounted on the rack or a fixed part of the rotary driving mechanism; the bending forming jig is connected with the rotating part of the rotary driving mechanism, so that the bending forming jig is driven by the rotary driving mechanism to rotate for a set angle relative to the clamp.

2. A workpiece bend forming apparatus as defined in claim 1 wherein: the bending tool is slidably mounted on the rack through a sliding rail; and the slide rail is provided with a locking bolt.

3. A workpiece bend forming apparatus as defined in claim 2 wherein: the bending tool is slidably installed on the rack through two sliding rails which are arranged at intervals and in parallel, a base is arranged below the bending tool, and two sliding grooves matched with the sliding rails are formed in the bottom surface of the base.

4. A workpiece bend forming apparatus as defined in claim 2 wherein: the number of the groups of the bending assemblies is the same as the number of the bending forming processes of the workpiece to be processed.

5. A workpiece bend forming apparatus as defined in claim 4 wherein: the rack is provided with mounting planes forming an obtuse angle with each other, and the bending assemblies in different groups are respectively mounted on different mounting planes.

6. Workpiece bending and forming apparatus according to any one of claims 1-5, characterised in that: the fixture is composed of two parallel clamping plates, and the distance between the two clamping plates is matched with the thickness of the workpiece to be processed.

7. A workpiece bend forming apparatus as defined in claim 6 wherein: the rotary driving mechanism is a swinging rotary cylinder, the clamp is fixedly installed on a cylinder body of the swinging rotary cylinder through an installation plate and is close to a rotary terminal of the swinging rotary cylinder, and the bending forming jig is connected with the rotary terminal of the swinging rotary cylinder.

8. A workpiece bend forming apparatus as defined in claim 7 wherein: the bending forming jig is a plate.

9. A workpiece bend forming apparatus as defined in claim 7 wherein: the workpiece bending and forming equipment further comprises an air pressure control system for supplying air to the swing rotary cylinder.

10. A workpiece bend forming apparatus as defined in claim 9 wherein: a power supply control box is arranged on the rack, and the air pressure control system is positioned in the power supply control box; and a starting switch of the power supply control box is externally arranged on the rack.