Steel pipe bending device for hardware machining

Abstract

The invention discloses a steel pipe bending device for hardware machining, and relates to the technical field of steel pipe bending machining. A telescopic device is arranged to drive a pressing block to be close to one side of a supporting wheel so as to drive a steel pipe supported on the supporting wheel to be bent, and meanwhile, a detection system comprising a pressure sensor and a detection module used for detecting the telescopic length of the telescopic device are arranged at the end of the pressing block; when a telescopic device is controlled to stretch out during use and a pressure sensor detects a pressure signal, the outer diameter of a steel pipe is determined according to the stretching length of a detection module; meanwhile, according to the bending angle requirement of the steel pipe, the distance between the two supporting wheels and the outer diameter of the steel pipe, the telescopic device is controlled to stretch out by the corresponding length, and therefore bending operation on the steel pipe is completed.

Description

Technical Field

[0001] The invention belongs to the technical field of steel pipe bending processing, and in particular relates to a steel pipe bending device for hardware processing. Background Art

[0002] Steel pipes are often bent at various angles to meet various needs. Generally, pipe bending is done by cold bending using a pipe bending machine. A driving wheel and a driven wheel with grooves on the circumference are set on the workbench. The pipe is placed in the groove of the driven wheel. The extended handle is manually pulled. The front end of the handle is connected to the driving wheel. The steel pipe can be bent along its curved track. Manual pipe bending is time-consuming and labor-intensive. During batch processing, the steel pipes are not formed consistently due to uneven manual effort.

[0003] For example, CN201596702U discloses a pipe bending machine, which is mainly composed of a workbench, a reduction mechanism, a jack fixed on the workbench, a driving wheel and a driven wheel plugged into the workbench through a pin shaft, and an upper cover plate. The reduction mechanism is fixed under the workbench, and its output shaft is keyed with a gear, which meshes with a small gear on the jack rocker. The driving wheel and the driven wheel are respectively placed on both sides of the front end of the jack, forming a triangular layout. When it is in use, it is not convenient to control the pipe bending operation according to the diameter of the pipe and the requirements of the bending angle. Summary of the invention

[0004] The object of the present invention is to provide a steel pipe bending device for hardware processing, which drives the steel pipe supported on the supporting wheel to bend by arranging a telescopic device to drive the pressing block toward the side close to the supporting wheel, and at the same time, a detection system including a pressure sensor and a detection module for detecting the telescopic length of the telescopic device are arranged at the end of the pressing block, thereby solving the problems raised by the background technology.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention relates to a steel pipe bending device for hardware processing, comprising a supporting component for supporting a steel pipe and a bending component for bending the steel pipe supported on the supporting component; the supporting component comprises a pair of support wheels arranged in a gap, the bending component comprises a pressure block, the pressure block is located between the two support wheels, and the support wheels and the pressure block are arranged in a triangular shape, the lower end of the pressure block is in a convex arc shape, and the lower end of the radial cross-section of the convex arc-shaped pressure block is provided with a concave; the side of the pressure block close to the steel pipe is recessed upward to form a groove, a partition is arranged in the groove, one side of the partition is connected to a pressure block against the steel pipe through a spring, one side of the pressure block is connected to a push rod that movably passes through the partition, the end of the push rod is connected to an elastic member, and a pressure sensor is arranged on the bottom side of the groove; it also includes a telescopic device connected to the pressure block and driving the pressure block to move, and a detection module for detecting the telescopic length of the telescopic device; the telescopic device and the detection module are connected to a controller, and the controller is connected to a pressure sensor.

[0007] Furthermore, a connecting rod is connected to the top of the pressing block, an end of the connecting rod is connected to a connecting seat, and an end of the telescopic device is connected to the connecting seat; the detection module includes a laser rangefinder, the telescopic device is installed on a mounting seat, the laser rangefinder is installed on the mounting seat, and the laser rangefinder is directly opposite to the connecting seat; the telescopic device is a telescopic motor.

[0008] Furthermore, the supporting component includes a pair of side plates A arranged in parallel, and the supporting wheel is rotatably installed between the two side plates A through a rotating shaft assembly; the rotating shaft assembly includes a shaft body, and the supporting wheel is provided with a through hole matching the shaft body along its axial direction, and bearings are respectively installed at both ends of the through hole with interference fit, and the bearings are interference fit with the shaft body.

[0009] Furthermore, an installation cavity is provided in the middle of the shaft body, and a through hole matching the installation cavity is provided on the circumferential side of the support wheel; an infrared transmitting module and an infrared receiving module matching each other are installed in the installation cavities of the two shaft bodies; the infrared light emitted by the infrared transmitting module passes through the two through holes and is received by the infrared receiving module; the infrared transmitting module and the infrared receiving module are both connected to the controller.

[0010] Furthermore, counterweights are provided at both ends of the support wheels; under the action of the counterweights, the through holes on the two support wheels are concentric structures, and the through holes and the mounting cavity on any support wheel are concentric structures.

[0011] Furthermore, bosses are provided at both ends of the shaft body, positioning posts are provided on the circumferential sides of the bosses, and studs are provided at the ends of the bosses; mounting holes for installing the rotating shaft assembly are provided at both ends of the side plate A along their length direction, and positioning grooves cooperating with the positioning posts are provided on the circumferential sides of the mounting holes; the ends of the studs pass through the mounting holes, and the ends of the studs are threadedly connected with nuts, and a gasket is sleeved on the studs between the nut and the side plate A.

[0012] Furthermore, it also includes a pair of side panels B arranged in parallel, a support block is connected between the two ends of the top of the side panels B, and the bottom ends of the two side panels A are fixed on the support block.

[0013] The present invention has the following beneficial effects:

[0014] The present invention drives the steel pipe supported on the supporting wheel to bend by arranging a telescopic device to drive the pressing block toward the side close to the supporting wheel, and at the same time, a detection system including a pressure sensor and a detection module for detecting the telescopic length of the telescopic device are arranged at the end of the pressing block; when the telescopic device is controlled to be extended during use, when the pressure sensor detects a pressure signal, the outer diameter of the steel pipe is determined according to the extended length of the detection module; at the same time, the telescopic device is controlled to be extended to a corresponding length according to the bending angle requirement of the steel pipe, the distance between the two supporting wheels, and the outer diameter of the steel pipe to complete the bending.

[0015] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of the steel pipe bending device of the present invention;

[0018] Figure 2 for Figure 1 The main view;

[0019] Figure 3 for Figure 1 Side view of

[0020] Figure 4 for Figure 3 Sectional view at AA;

[0021] Figure 5 for Figure 4 A partial enlarged view of the middle part;

[0022] Figure 6 It is a schematic diagram of the structure of the rotating shaft assembly of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0025] See also Figure 1-3 As shown, the present invention is a steel pipe bending device for hardware processing, including a pair of parallel side plates B1, a support block 11 is connected between the top ends of the two side plates B1, a pair of parallel side plates A2 are fixed on the two support blocks 11, and a pair of gap-set support wheels 5 can be rotatably installed between the two side plates A2 through a rotating shaft assembly 4; the above-mentioned side plates B1, side plates A2 and support wheels 5 constitute a supporting component for supporting the steel pipe 100; and a bending component for bending the steel pipe 100 supported on the supporting component is arranged directly above the supporting component; the bending component includes a mounting seat, a telescopic device is fixed to the bottom side surface of the mounting seat, a pressure block 32 is connected to the end of the telescopic device, and a detection module for detecting the telescopic length of the telescopic device is installed on the mounting seat, and the detection module uses a laser rangefinder.

[0026] Specifically, Figure 4-5, the lower end of the pressing block 32 is in a convex arc shape, and the lower end of the radial cross section of the pressing block in the convex arc shape is provided with a concave. At the same time, in order to combine the setting of the detection module, the outer diameter of the steel pipe to be bent is detected during use, and the side of the pressing block 32 close to the steel pipe 100 is upwardly concave to form a groove 33, and a partition 35 is arranged in the groove 33. One side of the partition 35 is connected to a block 37 against the steel pipe 100 through a spring 36, and one side of the block 37 is connected to a push rod 371 that moves through the partition 35, and the end of the push rod 371 is connected to an elastic member 372. A pressure sensor 34 is arranged on the bottom side of the groove 33, and then when the pressing block 32 is controlled to move toward one side of the steel pipe 100, when the pressure sensor 34 detects a pressure signal, it indicates that the pressing block 32 is against the top surface of the steel pipe 100, that is, at this time, the distance between the pressing block 32 and the support wheel 5 is the diameter of the steel pipe 100.

[0027] Furthermore, in the above, the distance between the two support wheels 5 is rated, and then when in use, according to the diameter of the steel pipe 100, the distance between the two support wheels 5 and the bending angle requirements, and when the detection module is used, the telescopic device is controlled to complete the corresponding extension length to complete the pipe bending operation.

[0028] In order to facilitate automated production, a controller is also included. The controller is connected to the laser rangefinder, the pressure sensor 34 and the telescopic device, and the telescopic device is a telescopic motor.

[0029] Specifically, a connecting rod 31 is connected to the top of the pressing block 32 , a connecting seat 3 is provided at the end of the connecting rod 31 , and the end of the telescopic device is connected to the connecting seat 3 .

[0030] On the basis of the above, in order to facilitate the detachable installation of the support wheel 5 between the two side plates A2, so as to keep the support wheel 5 rotatable during the pipe bending operation, as shown in FIG. Figure 6 The rotating shaft assembly 4 provided by the present invention includes a shaft body 41, and the supporting wheel 5 is provided with a through hole matched with the shaft body 41 along its axial direction, and bearings 52 are respectively installed at both ends of the through hole with interference fit, and the bearings 52 are interference fit with the shaft body 41.

[0031] Four mounting holes 20 for mounting the shaft assembly 4 are provided along the length direction at both ends of the side panel A2. When in use, the support wheels 5 are respectively installed in the corresponding mounting holes 20 at both ends of the side panel A2 through the shaft assembly 4, and then the distance between the two support wheels 5 is adjusted during use.

[0032] In order to facilitate automatic detection of the distance between the two support wheels 5 after installation during use, an installation cavity 45 is provided in the middle of the shaft body 41, and a through hole 50 cooperating with the installation cavity 45 is provided on the circumference of the support wheel 5; an infrared transmitting module and an infrared receiving module that cooperate with each other are installed in the installation cavities 45 of the two shaft bodies 41; the infrared light emitted by the infrared transmitting module passes through the two through holes 50 and is received by the infrared receiving module; the infrared transmitting module and the infrared receiving module are both connected to the controller; and counterweights 50 are provided at both ends of the support wheel 5; under the action of the counterweights 50, the through holes 50 on the two support wheels 5 are in a concentric structure, and the through hole 50 on any support wheel 5 and the installation cavity 45 are in a concentric structure.

[0033] Furthermore, in order to facilitate the control of the concentric structure of the two mounting cavities 45 on the two support wheels 5 during use, that is, when installing the support wheels 5, the two mounting cavities 45 are kept horizontal and relatively arranged after installation, such as Figure 6 , bosses 42 are provided at both ends of the shaft body 41, and three positioning posts 43 are provided on the peripheral side of the boss 42, and studs 44 are provided on the ends of the boss 42; at the same time, positioning grooves 21 cooperating with the positioning posts 43 are provided on the peripheral side of the mounting hole 20; during installation, the ends of the control studs 44 pass through the mounting hole 20, and the ends of the studs 44 are threadedly connected with nuts 40; a gasket 401 is sleeved on the studs 44 between the nuts 40 and the side plate A2.

[0034] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A steel pipe bending device for hardware processing, characterized in that: It comprises a supporting component for supporting a steel pipe (100), and a bending component for bending the steel pipe (100) supported on the supporting component; The support component comprises a pair of support wheels (5) arranged with a gap, and the bending component comprises a pressing block (32), wherein the pressing block (32) is located between the two support wheels (5), and the support wheels (5) and the pressing block (32) are arranged in a triangular shape; The side of the pressure block (32) close to the steel pipe (100) is recessed upward to form a groove (33), a partition (35) is arranged in the groove (33), one side of the partition (35) is connected to a block (37) pressed against the steel pipe (100) through a spring (36), one side of the block (37) is connected to a push rod (371) that movably passes through the partition (35), the end of the push rod (371) is connected to an elastic member (372), and a pressure sensor (34) is arranged on the bottom side of the groove (33); It also includes a telescopic device connected to the pressing block (32) and driving the pressing block (32) to move, and a detection module for detecting the telescopic length of the telescopic device; the telescopic device and the detection module are connected to a controller, and the controller is connected to a pressure sensor (34).

2. A steel pipe bending device for hardware processing according to claim 1, characterized in that: The top of the pressing block (32) is connected to a connecting rod (31), the end of the connecting rod (31) is connected to a connecting seat (3), and the end of the telescopic device is connected to the connecting seat (3).

3. A steel pipe bending device for hardware processing according to claim 2, characterized in that: The detection module comprises a laser rangefinder, the telescopic device is mounted on a mounting seat, the laser rangefinder is mounted on the mounting seat, and the laser rangefinder is directly opposite to the connecting seat (3); The telescopic device is a telescopic motor.

4. A steel pipe bending device for hardware processing according to any one of claims 1 to 3, characterized in that: The supporting component comprises a pair of side plates A (2) arranged in parallel, and the supporting wheel (5) is rotatably mounted between the two side plates A (2) via a rotating shaft assembly (4); The rotating shaft assembly (4) comprises a shaft body (41), and the supporting wheel (5) is provided with a through hole matched with the shaft body (41) along its axial direction, and bearings (52) are respectively installed at both ends of the through hole in an interference fit, and the bearings (52) are in an interference fit with the shaft body (41).

5. A steel pipe bending device for hardware processing according to claim 4, characterized in that: A mounting cavity (45) is provided in the middle of the shaft body (41), and a through hole (50) matching with the mounting cavity (45) is provided on the peripheral side of the support wheel (5); An infrared transmitting module and an infrared receiving module that cooperate with each other are installed in the installation cavities (45) of the two shaft bodies (41); infrared light emitted by the infrared transmitting module passes through the two through holes (50) and is received by the infrared receiving module; The infrared transmitting module and the infrared receiving module are both connected to the controller.

6. A steel pipe bending device for hardware processing according to claim 5, characterized in that: Both ends of the support wheel (5) are provided with counterweight blocks (50); Under the action of the counterweight (50), the through holes (50) on the two support wheels (5) are in a concentric structure, and the through hole (50) on any support wheel (5) and the mounting cavity (45) are in a concentric structure.

7. A steel pipe bending device for hardware processing according to claim 5, characterized in that: The two ends of the shaft body (41) are provided with convex columns (42), the peripheral side of the convex columns (42) is provided with positioning clamping columns (43), and the end of the convex columns (42) is provided with studs (44); Both ends of the side plate A (2) are provided with mounting holes (20) for mounting the rotating shaft assembly (4) along the length direction thereof, and the surrounding side of the mounting hole (20) is provided with a positioning slot (21) that cooperates with the positioning column (43).

8. The steel pipe bending device for hardware processing according to claim 6, characterized in that: The end of the stud (44) passes through the mounting hole (20), and the end of the stud (44) is threadedly connected to a nut (40), and a gasket (401) is sleeved on the stud (44) between the nut (40) and the side plate A (2).

9. A steel pipe bending device for hardware processing according to claim 4, characterized in that: It also comprises a pair of parallel side panels B (1), wherein a support block (11) is connected between the top ends of the side panels B (1), and the bottom ends of the two side panels A (2) are fixed on the support block (11).

10. The steel pipe bending device for hardware processing according to claim 1, characterized in that: The lower end of the pressing block (32) is in a convex arc shape, and a concave is provided at the lower end of the radial cross section of the pressing block in the convex arc shape.

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