CN109226555B

CN109226555B - Pipe fitting indent device

Info

Publication number: CN109226555B
Application number: CN201811286182.8A
Authority: CN
Inventors: 张启旭
Original assignee: Qingdao Zehao Auto Parts Co ltd
Current assignee: Qingdao Zehao Auto Parts Co ltd
Priority date: 2018-10-31
Filing date: 2018-10-31
Publication date: 2020-07-28
Anticipated expiration: 2038-10-31
Also published as: CN109226555A

Abstract

The invention provides a pipe fitting groove pressing device, which relates to the technical field of pipe fitting processing and comprises the following components: the pipe fitting grooving device provided by the invention solves the technical problem of poor punching stability in pipe fitting grooving operation in the prior art, not only can improve punching stability, but also can prevent the telescopic cylinder from being damaged due to radial force.

Description

Pipe fitting indent device

Technical Field

The invention relates to the technical field of pipe fitting machining, in particular to a pipe fitting groove pressing device.

Background

In office chair processing, a pipe fitting is usually sleeved on a mandrel to form a support shaft. To circumferentially position the pipe and mandrel and to prevent the mandrel from being removed from the pipe, pressure is typically applied to the outside of the pipe to indent the side walls of the pipe inwardly, thereby completing the pipe notching operation.

When carrying out the indent to the pipe fitting, need use anchor clamps fixed pipe fitting usually, then use pneumatic cylinder punching press pipe fitting outer wall, because the pipe fitting outer wall is the curved surface, lead to the pneumatic cylinder to bear great radial force in the course of the work, the punching press stability is relatively poor, and very easily causes the pneumatic cylinder damage. In addition, in the prior art, the pipe fitting is clamped at two ends of the pipe fitting along the axial direction of the pipe fitting so as to position the pipe fitting. Therefore, the pipe fitting cannot bear large radial force, the clamping process is complex, and the machining efficiency is difficult to improve.

Disclosure of Invention

The invention aims to provide a pipe fitting grooving device to solve the technical problem that in the prior art, the pipe fitting grooving operation is poor in stamping stability.

In a first aspect, the present invention provides a pipe fitting indenting device, comprising: frame, push rod, telescoping cylinder, indent spare and support piece, push rod sliding connection in the frame, the expansion cylinder the expansion end with the push rod is connected, indent spare sliding connection in the frame, and the butt the push rod, the push rod with the relative terminal surface of indent spare is close to certainly the one end of telescoping cylinder is to deviating from the one end of telescoping cylinder is towards deviating from the direction slope of indent spare, support piece is located the indent spare deviates from one side of push rod, and with the frame is connected.

With reference to the first aspect, the present invention provides a first possible implementation manner of the first aspect, wherein the push rod includes a pressing plate and a rod, the pressing plate is connected to the rod, the rod is connected to the telescopic cylinder, the pressing plate abuts against the pressure groove member, and an end surface of the pressing plate opposite to the pressure groove member is inclined from one end close to the rod to one end away from the rod in a direction away from the pressure groove member.

With reference to the first possible implementation manner of the first aspect, the invention provides a second possible implementation manner of the first aspect, wherein a through groove is formed in the pressing plate, the pressing groove is connected with a pull rod, the pull rod is inserted into the through groove and is slidably connected to the rack, one end, away from the pressing groove, of the pull rod is connected with a convex ring, a first spring is sleeved on the pull rod, and the first spring abuts against a position between the convex ring and the rack.

With reference to the first aspect, the present disclosure provides a third possible implementation manner of the first aspect, wherein the supporting member includes a supporting shaft, a first side cover, a second side cover, a first top block, a second top block, and a second spring, the first top block and the second top block are both slidably connected in the supporting shaft, the first side cover and the second side cover are both connected to the supporting shaft, the first top block is slidably connected to the first side cover, the second top block is slidably connected to the second side cover, and the second spring abuts between the first top block and the second top block.

With reference to the first aspect, the present invention provides a fourth possible implementation manner of the first aspect, wherein the pressure groove member includes a sliding rod and a protruding block, the protruding block is connected to an end of the sliding rod away from the push rod, and an end surface of the sliding rod opposite to the push rod is inclined from an end close to the telescopic cylinder to an end away from the telescopic cylinder in a direction away from the protruding block.

With reference to the fourth possible implementation manner of the first aspect, the present invention provides a fifth possible implementation manner of the first aspect, wherein a slot is formed on the supporting member, and the slot is disposed opposite to the bump.

With reference to the first aspect, the present invention provides a sixth possible implementation manner of the first aspect, wherein a supporting block is connected to the frame, a clamping gap is formed between the supporting block and the supporting member, and a groove is formed in an end surface of the supporting block opposite to the supporting member.

With reference to the first aspect, the present invention provides a seventh possible implementation manner of the first aspect, wherein two push rods and two pressure groove members are provided, the supporting member is located between the two pressure groove members, the two push rods are abutted against the two pressure groove members in a one-to-one correspondence manner, and the two push rods are connected with the movable end of the telescopic cylinder.

With reference to the seventh possible implementation manner of the first aspect, the present invention provides an eighth possible implementation manner of the first aspect, wherein two telescopic cylinders are provided, and the two movable ends of the two telescopic cylinders are connected to the two push rods in a one-to-one correspondence manner.

With reference to the eighth possible implementation manner of the first aspect, the present invention provides a ninth possible implementation manner of the first aspect, wherein the pipe groove pressing device includes a cylinder fixing plate, and the movable ends of the two telescopic cylinders are both fixedly connected to the cylinder fixing plate.

The embodiment of the invention has the following beneficial effects: adopt push rod sliding connection in the frame, the expansion cylinder's expansion end is connected with the push rod, indent piece sliding connection in the frame, and the butt push rod, the push rod is the terminal surface relative with the indent piece, the one end from being close to the expansion cylinder inclines towards the one end that deviates from the expansion cylinder from the direction of indent piece, support piece is located the one side that the indent piece deviates from the push rod, and the mode of being connected with the frame, through support piece plug-in pipe fitting, in order to realize the quick fixed of pipe fitting, push rod is pushed through the expansion cylinder, push rod push extrusion groove piece, thereby make indent piece punching press pipe fitting outer wall, the equal sliding connection in frame of push rod and indent piece, from this avoid the expansion cylinder to bear radial force, not only can improve punching press stability, and can avoid the expansion cylinder to receive radial force effect.

In addition, the push rod inclines towards the direction of deviating from the indent piece from the one end that is close to the telescoping cylinder to the one end that deviates from the telescoping cylinder from the terminal surface that the indent piece is relative, through push rod extrusion indent piece to through indent piece punching press pipe fitting, through face contact transmission thrust between push rod and the indent piece, thereby can avoid push rod and indent piece stress concentration, prevent push rod and indent piece atress damage.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a cross-sectional view of a pipe fitting indenting apparatus provided in accordance with an embodiment of the present invention;

FIG. 2 is a schematic view of a pipe fitting notching apparatus provided by an embodiment of the present invention;

FIG. 3 is a schematic view of a push rod of a pipe chase apparatus provided in an embodiment of the present invention;

FIG. 4 is a schematic view of a notching element of a pipe notching apparatus, according to an embodiment of the present invention;

FIG. 5 is a schematic view of a support block of a pipe notching apparatus provided in accordance with an embodiment of the present invention;

FIG. 6 is a schematic view of a support member of a pipe notching apparatus, according to an embodiment of the present invention;

fig. 7 is a cross-sectional view of a support member of a pipe notching apparatus, according to an embodiment of the present invention.

Icon: 1-a frame; 2-a push rod; 21-pressing plate; 22-a rod member; 23-a through groove; 3-a telescopic cylinder; 4-a groove pressing piece; 41-a slide bar; 42-a bump; 5-a support member; 51-slotted holes; 52-support shaft; 53-a first side cover; 54-a second side cover; 55-a first top block; 56-second top block; 57-a second spring; 6-a support block; 61-grooves; 7-a pull rod; 8-oil cylinder fixing plate.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example one

As shown in fig. 1 and 2, a pipe notching device provided by an embodiment of the present invention includes: frame 1, push rod 2, telescoping cylinder 3, indent spare 4 and

support piece

5, 2 sliding connection in frame 1 of push rod, the expansion end and the push rod 2 of telescoping cylinder 3 are connected, 4 sliding connection in frame 1 of indent spare, and butt push rod 2, the push rod 2 is the terminal surface relative with indent spare 4, the one end that is close to telescoping cylinder 3 from one end that is close to telescoping cylinder 3 is towards the direction slope that deviates from indent spare 4 to the one end that deviates from telescoping cylinder 3, support piece 5 is located indent spare 4 one side that deviates from push rod 2, and is connected with frame 1.

Specifically, be provided with first spout and second spout in frame 1, 2 sliding connection of push rod are in first spout, and indent spare 4 sliding connection is in the second spout, push rod 2 and indent spare 4 butt, and push rod 2 and the relative terminal surface of indent spare 4, incline towards the direction that deviates from indent spare 4 from the one end that is close to telescoping cylinder 3 to the one end that deviates from telescoping cylinder 3. When the telescopic cylinder is used, the fixed end of the telescopic cylinder 3 and the rack 1 are fixedly connected to the same fixed frame, so that the distance between the fixed end of the telescopic cylinder 3 and the rack 1 is fixed. When the telescopic cylinder 3 extends, the telescopic cylinder 3 pushes the push rod 2 to slide towards the direction away from the telescopic cylinder 3, and the push rod 2 pushes the extrusion groove part 4 to slide towards the direction close to the support part 5 through surface contact. The support member 5 is used for inserting the pipe to position the pipe through the support member 5, and when the groove pressing member 4 presses the side wall of the pipe, the support member 5 can support the pipe to prevent the pipe from bending due to too large radial force. In the process, the frame 1 is used for limiting the sliding direction of the push rod 2 and the groove pressing piece 4, so that the push rod 2 and the groove pressing piece 4 are prevented from being bent under force, and the telescopic cylinder 3 is only subjected to axial acting force, so that the telescopic cylinder 3 can be prevented from being bent and damaged under radial force.

The inclination angle of the end face of the push rod 2 facing the groove presser 4 can affect the degree of the impact force of the groove presser 4 when the power of the telescopic cylinder 3 is constant. For example: when the sliding direction of the push rod 2 is perpendicular to the sliding direction of the groove pressing piece 4, if the included angle between the end face of the push rod 2 opposite to the groove pressing piece 4 and the sliding direction of the push rod 2 is smaller than 45 degrees, under the condition of neglecting the friction force between the push rod 2 and the groove pressing piece 4, the telescopic cylinder 3 pushes the push rod 2 and pushes the groove pressing piece 4 through the push rod 2, so that the punching force degree of the groove pressing piece 4 on the pipe fitting can be increased, and under the condition that the power of the telescopic cylinder 3 is fixed, the punching force degree of the telescopic cylinder 3 on the pipe fitting can be increased in a mode of reducing the included angle between the end face of the push rod 2 opposite to the groove pressing piece 4 and the sliding direction of the push rod 2.

In the embodiment of the present invention, the push rod 2 includes a pressing plate 21 and a rod 22, the pressing plate 21 is connected to the rod 22, the rod 22 is connected to the telescopic cylinder 3, the pressing plate 21 abuts against the pressure groove member 4, and an end surface of the pressing plate 21 opposite to the pressure groove member 4 is inclined from one end close to the rod 22 to one end away from the rod 22 toward a direction away from the pressure groove member 4.

As shown in fig. 3, when the telescopic cylinder 3 extends, the telescopic cylinder 3 pushes the push rod 2 to slide in a direction away from the push rod 2, the end face of the push rod 2 opposite to the groove pressing piece 4 pushes the groove pressing piece 4 to slide in a direction away from the push rod 2 in a sliding process, and in the sliding process, the groove pressing piece 4 extrudes the pipe fitting sleeved on the support piece 5, so that the side wall of the pipe fitting is recessed towards the inner side of the pipe fitting.

As shown in fig. 3, a through groove 23 is formed in the pressing plate 21, the groove pressing member 4 is connected with the pull rod 7, the pull rod 7 is inserted into the through groove 23 and is slidably connected to the frame 1, one end of the pull rod 7, which is away from the groove pressing member 4, is connected with the convex ring, the pull rod 7 is sleeved with a first spring, and the first spring abuts against the convex ring and the frame 1.

Specifically, in the sliding direction of the push rod 2, the through groove 23 extends in a dimension larger than the sliding stroke of the push rod 2. When the push rod 2 slides, the pull rod 7 slides in the through groove 23. When the telescopic cylinder 3 extends, the push rod 2 pushes the groove piece 4 to extrude the pipe fitting sleeved on the support piece 5, and the groove piece 4 pulls the pull rod 7 to compress the first spring between the convex ring and the frame 1; when the telescopic cylinder 3 shortens, the first spring elastically extends, the pushing convex ring drives the pull rod 7 to slide in the direction away from the support piece 5, and then the pressure groove piece 4 is driven to slide in the direction away from the support piece 5.

As shown in fig. 7, the support 5 includes a support shaft 52, a first side cover 53, a second side cover 54, a first top block 55, a second top block 56, and a second spring 57, the first top block 55 and the second top block 56 are slidably connected in the support shaft 52, the first side cover 53 and the second side cover 54 are connected to the support shaft 52, the first top block 55 is slidably connected to the first side cover 53, the second top block 56 is slidably connected to the second side cover 54, and the second spring 57 abuts between the first top block 55 and the second top block 56. Wherein, be equipped with on the back shaft 52 and inlay the groove, first kicking block 55 and the equal sliding connection of second kicking block 56 are in inlaying the inslot, and the one end that first kicking block 55 deviates from second kicking block 56 is connected with first ejector pin, the one end that second kicking block 56 deviates from first kicking block 55 is connected with the second ejector pin, second spring 57 butt is between first kicking block 55 and second kicking block 56, first side cap 53 is located one side that first kicking block 55 deviates from second kicking block 56, second side cap 54 is located one side that second kicking block 56 deviates from first kicking block 55, with first kicking block 55 through first side cap 53 and second side cap 54, second kicking block 56 and second spring 57 restriction are in the inlaying inslot of back shaft 52, first ejector pin sliding connection is in first side cap 53, second ejector pin sliding connection is in second side cap 54. When the pipe fitting is sleeved on the support member 5, the second spring 57 pushes the first ejector block 55 and the second ejector block 56, so that the first ejector rod and the second ejector rod abut against the inner wall of the pipe fitting, and the pipe fitting is clamped and fixed; when 4 punching press pipes on the pressure tank spare, the pipe fitting lateral wall is sunken to the inboard, and first kicking block 55 and second kicking block 56 all extrude second spring 57, and second spring 57 receives the pressure contraction, cushions the punching press that the pipe fitting received through second spring 57 to can make support piece 5 in pipe fitting punching press in-process, realize that the pipe fitting of overall process supports.

As shown in fig. 4, the slot pressing member 4 includes a sliding rod 41 and a protrusion 42, the protrusion 42 is connected to an end of the sliding rod 41 facing away from the push rod 2, and an end surface of the sliding rod 41 opposite to the push rod 2 is inclined from an end close to the telescopic cylinder 3 to an end facing away from the telescopic cylinder 3 toward a direction facing away from the protrusion 42. It should be noted that, the end face of the groove pressing member 4 opposite to the push rod 2 only needs to be provided with one inclined plane, and the purpose of pushing and pressing the groove pressing member 4 can be achieved through the push rod 2. The opposite end surfaces of the groove pressing piece 4 and the push rod 2 form mutually matched inclined surfaces, so that the groove pressing piece 4 can be in surface contact with the push rod 2, and stress concentration is avoided.

As shown in fig. 6, the supporting member 5 is provided with a slot 51, and the slot 51 is disposed opposite to the bump 42. The first side cover 53 and the second side cover 54 are both provided with a slot 51, the first push rod is slidably connected in the slot 51 of the first side cover 53, and the second push rod is slidably connected in the slot 51 of the second side cover 54. In addition, the supporting member 5 can be a mandrel assembled with the pipe, the mandrel is provided with a slot 51, the pipe is sleeved on the mandrel, and when the groove pressing member 4 presses the pipe, the protrusion 42 makes the side wall of the pipe protrude into the slot 51, so that the pipe and the mandrel are fixedly connected.

As shown in fig. 2 and 5, a supporting block 6 is connected to the frame 1, a clamping gap is formed between the supporting block 6 and the supporting member 5, and a groove 61 is formed on an end surface of the supporting block 6 opposite to the supporting member 5. Specifically, when support piece 5 was located to the pipe fitting cover, the pipe fitting was pegged graft in the centre gripping gap between tray 6 and support piece 5 to bear the pipe fitting through tray 6, thereby improve the stability of pipe fitting. To further fix the pipe, the support 6 is connected to the frame 1 by bolts, and the axis of the bolt is perpendicular to the axis of the support 5, and the clamping gap between the support 5 and the support 6 can be reduced by tightening the bolts, so as to clamp the pipe between the support 5 and the support 6.

As shown in fig. 1 and 2, the push rods 2 and the two pressure groove pieces 4 are provided, the support piece 5 is located between the two pressure groove pieces 4, the two push rods 2 are correspondingly abutted to the two pressure groove pieces 4, and the two push rods 2 are connected with the movable end of the telescopic cylinder 3. Two push rods 2 are pushed and extruded simultaneously through a single telescopic cylinder 3, and then two pressure groove pieces 4 can be ensured to exert a stamping effect on the pipe fitting simultaneously, so that the pipe fitting can be prevented from being stressed obliquely, and the purpose of simultaneously processing two sides of the pipe fitting is realized.

Furthermore, two telescopic cylinders 3 are arranged, and the movable ends of the two telescopic cylinders 3 are connected with the two push rods 2 in a one-to-one correspondence manner. Wherein, the telescoping cylinder 3 is provided with two, pushes away respectively through two telescoping cylinders 3 and pushes away push rod 2, and then can solve the not enough technical problem of single telescoping cylinder 3 punching press intensity.

As shown in fig. 1 and 2, the pipe groove pressing device includes an oil cylinder fixing plate 8, and the movable ends of the two telescopic cylinders 3 are both fixedly connected to the oil cylinder fixing plate 8. Taking the telescopic cylinder 3 as a hydraulic cylinder or an air cylinder as an example, the fixed ends of the two telescopic cylinders 3 are relatively fixed with the frame 1, in order to ensure that the two telescopic cylinders 3 are synchronously telescopic, the movable ends of the two telescopic cylinders 3 are fixedly connected by using the oil cylinder fixing plate 8, because the telescopic cylinders 3 are telescopic through fluid, and further the telescopic motion of the telescopic cylinders 3 is not rigid motion, the two telescopic cylinders 3 are jointly telescopic through the oil cylinder fixing plate 8, so that the stamping force degrees received by the two sides of the pipe fitting can be ensured to be the same, and further the pipe fitting is prevented from being stressed and deflected.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pipe notching device, comprising: the push rod (2) is connected with the frame (1) in a sliding mode, the movable end of the telescopic cylinder (3) is connected with the push rod (2), the pressure groove piece (4) is connected with the frame (1) in a sliding mode and abutted against the push rod (2), the push rod (2) and the pressure groove piece (4) are opposite in end face, from one end close to the telescopic cylinder (3), to one end deviated from the telescopic cylinder (3) and inclined towards the direction deviated from the pressure groove piece (4), and the support piece (5) is located on one side, deviated from the push rod (2), of the pressure groove piece (4) and connected with the frame (1);

the number of the push rods (2) and the number of the pressure groove pieces (4) are two, the supporting piece (5) is located between the two pressure groove pieces (4), the two push rods (2) are correspondingly abutted against the two pressure groove pieces (4) one by one, and the two push rods (2) are connected with the movable end of the telescopic cylinder (3);

the number of the telescopic cylinders (3) is two, and the movable ends of the two telescopic cylinders (3) are connected with the two push rods (2) in a one-to-one correspondence manner;

the pipe fitting groove pressing device comprises an oil cylinder fixing plate (8), and the movable ends of the two telescopic cylinders (3) are fixedly connected to the oil cylinder fixing plate (8);

the support piece (5) comprises a support shaft (52), a first side cover (53), a second side cover (54), a first top block (55), a second top block (56) and a second spring (57), the first top block (55) and the second top block (56) are connected in the support shaft (52) in a sliding mode, the first side cover (53) and the second side cover (54) are connected in the support shaft (52) in a sliding mode, the first top block (55) is connected in the first side cover (53) in a sliding mode, the second top block (56) is connected in the second side cover (54) in a sliding mode, and the second spring (57) abuts between the first top block (55) and the second top block (56).

2. The pipe grooving device according to claim 1, wherein the push rod (2) comprises a pressing plate (21) and a rod piece (22), the pressing plate (21) is connected with the rod piece (22), the rod piece (22) is connected with the telescopic cylinder (3), the pressing plate (21) abuts against the grooving piece (4), and an end face, opposite to the grooving piece (4), of the pressing plate (21) is inclined from one end close to the rod piece (22) to one end away from the rod piece (22) in a direction away from the grooving piece (4).

3. The pipe fitting groove pressing device according to claim 2, wherein a through groove (23) is formed in the pressing plate (21), the groove pressing piece (4) is connected with the pull rod (7), the pull rod (7) is inserted into the through groove (23) and is connected to the rack (1) in a sliding mode, one end, away from the groove pressing piece (4), of the pull rod (7) is connected with the convex ring, a first spring is sleeved on the pull rod (7), and the first spring abuts between the convex ring and the rack (1).

4. The pipe grooving device according to claim 1, wherein the grooving element (4) comprises a sliding rod (41) and a protrusion (42), the protrusion (42) is connected to an end of the sliding rod (41) facing away from the push rod (2), and an end surface of the sliding rod (41) opposite to the push rod (2) is inclined from an end close to the telescopic cylinder (3) to an end facing away from the telescopic cylinder (3) in a direction facing away from the protrusion (42).

5. A tubular pipe notching device according to claim 4, characterized in that said supporting element (5) has a slot (51) provided thereon, said slot (51) being disposed opposite to said projection (42).

6. The pipe fitting grooving device according to claim 1, wherein a support block (6) is connected to the rack (1), a clamping gap is formed between the support block (6) and the support piece (5), and a groove (61) is formed in an end face of the support block (6) opposite to the support piece (5).