Three-station full-automatic pipe contracting, mouth covering and punching all-in-one machine

Abstract

The utility model discloses a three-station full-automatic pipe contracting, mouth covering and punching all-in-one machine which is characterized in that a clamping assembly used for clamping a pipe is arranged on a machine base, a rear positioning assembly is arranged on the machine base, the rear positioning assembly is located behind the clamping assembly, and a supporting plate fixing seat is arranged on the machine base through a front-back sliding device; the supporting plate fixing base is located in front of the clamping assembly. The supporting plate is arranged on the supporting plate fixing base through a left-right sliding device, a pipe shrinking die, a punching die and an opening wrapping die are sequentially arranged on the supporting plate from left to right at intervals, and a punching assembly is arranged on the punching die. According to the three-station full-automatic pipe shrinking, opening wrapping and punching all-in-one machine, the pipe shrinking station, the opening wrapping station and the punching station are integrated on the same equipment, compared with a traditional mode that pipe shrinking equipment, punching equipment and opening wrapping equipment are independently adopted, the occupied space is greatly reduced, time and labor are saved, and the machining efficiency is greatly improved; in addition, by the adoption of the device, the three procedures of pipe shrinking, mouth wrapping and punching can be completed only through one-time clamping, and the machining precision is greatly improved.

Description

Technical Field

[0001] This utility model relates to pipe processing equipment, and more particularly to a three-station fully automatic pipe shrinking, end-packing and punching integrated machine. Background Technology

[0002] With the continuous development of modern industry, pipes are being used more and more widely. As an important pipe processing equipment, the pipe shrinking machine plays an indispensable role in the pipe processing field. It is widely used in the pipe end forming processing of pipe fittings, automotive oil pipes, air pipes, water pipes, air conditioning pipes and other connection parts, and is an ideal pipe end forming processing equipment.

[0003] The working principle of the tube shrinking machine is as follows: Under normal conditions, the end of the tube is shrunk. The end of the tube enters the deformation zone under the action of axial force, and plastic deformation of tangential shrinkage occurs in the deformation zone. Then it enters the stable zone and finally forms a reduced end diameter.

[0004] In actual pipe processing, depending on the intended use of the pipe, it is sometimes necessary to ferrule the end face of the shrunken section and punch holes in the shrunken section. Currently, most shrunken pipe machines on the market can only perform pipe end shrunking. If ferrule-ferrule end face shrunking is required, a separate ferrule-ferrule machine or a ferrule-ferrule die needs to be installed, or the shrunken pipe die on the shrunken pipe machine needs to be replaced with a ferrule-ferrule die. If punching holes in the shrunken section is required, a separate punching machine is needed. This results in two problems: firstly, it requires installation space for at least two machines, occupying a large overall space; secondly, the pipe needs to be clamped and positioned multiple times, which is time-consuming and labor-intensive, and multiple clamping and positioning can easily affect the positioning accuracy, thus affecting the final pipe processing quality and failing to improve the pipe qualification rate. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a three-station fully automatic tube shrinking, wrapping and punching machine that is simple in structure, easy to operate and integrates tube shrinking, end wrapping and punching. When performing tube shrinking, end wrapping and punching processes on tubes, only one clamping and positioning of the tube is required, which saves time and effort, greatly improves processing efficiency, and has high overall processing accuracy, which greatly improves the pass rate of tube processing.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows: the three-station fully automatic tube shrinking, end-wrapping, and punching integrated machine includes: a machine base, on which a clamping assembly for clamping the tube is provided; and a rear positioning assembly is provided on the machine base, which is located behind the clamping assembly. The rear positioning assembly is used to limit the rear end of the tube to prevent the tube from moving backward due to the shrinking force, end-wrapping force, etc., which would affect the clamping reliability of the clamping assembly. The pallet fixing seat is mounted on the machine base via a front-to-back sliding device, and the pallet fixing seat can move back and forth relative to the machine base via the front-to-back sliding device. The pallet fixing seat is located in front of the clamping assembly. The pallet is mounted on the pallet fixing seat via a left-to-right sliding device, and the pallet can move left and right relative to the pallet fixing seat via the left-to-right sliding device. A tube shrinking die, a punching die, and a broaching die are arranged sequentially from left to right on the pallet. A punching assembly is mounted on the punching die.

[0007] Furthermore, in the aforementioned three-station fully automatic pipe shrinking, punching, and purging integrated machine, the clamping assembly has the following structure: a clamping seat is fixedly installed on the machine base, a lower clamping die is fixedly installed on the clamping seat, the cylinder body of the clamping cylinder is fixedly installed on the clamping seat, and the piston rod of the clamping cylinder points downward. An upper clamping die is fixedly connected to the end of the piston rod of the clamping cylinder, and the upper clamping die is located above the lower clamping die. When the piston rod of the clamping cylinder retracts inward or extends outward, it can drive the upper clamping die to move up and down relative to the lower clamping die, thereby loosening or clamping the pipe located between the lower clamping die and the upper clamping die.

[0008] Furthermore, in the aforementioned three-station fully automatic tube shrinking, end-packing, and punching integrated machine, the structure of the rear positioning assembly is as follows: a rear positioning seat is fixedly installed on the machine base, and a connecting threaded hole is provided on the rear positioning seat. An adjusting rod, through its external threaded section, is sequentially screwed onto a rear locking nut and then through the connecting threaded hole, extending outward from the front of the connecting threaded hole. A rear positioning baffle is fixedly connected to the end of the adjusting rod extending outward from the connecting threaded hole. In use, the distance by which the rear positioning baffle extends outward from the connecting threaded hole can be adjusted according to the actual length of the tube, the length of the shrunk section, and other requirements.

[0009] Furthermore, in the aforementioned three-station fully automatic pipe shrinking, end-packing, and punching integrated machine, a front positioning assembly is provided on the machine base. The front positioning assembly has the following structure: a front positioning cylinder is fixedly mounted on the machine base; a connecting rod is fixedly mounted at the end of the piston rod of the front positioning cylinder; and a front positioning baffle is fixedly mounted at the end of the connecting rod. When the piston rod of the front positioning cylinder extends outward, it causes the front positioning baffle to block in front of the clamping assembly. The front positioning assembly is used to limit the front end of the pipe, preventing the pipe from exceeding the limited position.

[0010] Furthermore, in the aforementioned three-station fully automatic tube shrinking, end-packing, and punching integrated machine, a front positioning baffle seat is fixedly installed at the end of the connecting rod. The front positioning baffle seat has a through-hole mounting threaded hole. A threaded rod is fixedly connected to the front positioning baffle, and the threaded rod is screwed into the mounting threaded hole and the front locking nut in sequence. During use, the distance of the front positioning baffle in front of the clamping assembly can be adjusted according to the requirements of the tube length, the length of the shrunk section, etc.

[0011] Furthermore, in the aforementioned three-station fully automatic tube shrinking, punching, and purging integrated machine, the structure of the front and rear sliding device is as follows: the pallet fixing seat is set on the machine base via a tube shrinking linear guide rail, a main cylinder seat is fixedly set on the machine base, the cylinder body of the main cylinder is fixedly installed on the main cylinder seat, and the end of the piston rod of the main cylinder is fixedly connected to the pallet fixing seat; when the piston rod of the main cylinder retracts inward or extends outward, it can push the pallet fixing seat to move back and forth along the tube shrinking linear guide rail.

[0012] Furthermore, in the aforementioned three-station fully automatic tube shrinking, punching, and purging integrated machine, the structure of the left and right sliding device is as follows: the pallet is mounted on the pallet fixing seat via a mold changing linear guide rail; a mold changing servo motor is fixedly mounted on the pallet fixing seat; the motor shaft of the mold changing servo motor is fixedly connected to a ball screw; a bearing seat for the ball screw at the connection between the motor shaft of the mold changing servo motor and the ball screw is provided on the pallet fixing seat; a support seat for the other end of the ball screw is provided on the pallet fixing seat; and an adjusting threaded hole that mates with the ball screw is provided on the pallet.

[0013] Furthermore, in the aforementioned three-station fully automatic tube shrinking, wrapping, and punching integrated machine, the structure of the punching assembly is as follows: a punching cylinder is fixedly installed on the top of the punching die, the piston rod of the punching cylinder points downward, a punch seat is fixedly connected to the end of the piston rod of the punching cylinder, and punches corresponding to the number and position of punches on the punching die are provided on the punch seat.

[0014] The beneficial effects of this utility model are: the above-mentioned three-station fully automatic tube shrinking, end-wrapping and punching integrated machine integrates tube shrinking, end-wrapping and punching on the same machine. Compared with the traditional separate tube shrinking equipment, punching equipment and end-wrapping equipment, it occupies a lot of space, saves time and labor, and greatly improves processing efficiency. In addition, the three processes of tube shrinking, end-wrapping and punching can be completed in one clamping, which greatly improves processing accuracy and the product qualification rate is high. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of the three-station fully automatic tube shrinking, wrapping, and punching integrated machine described in this utility model.

[0016] Figure 2 yes Figure 1 A partial structural diagram showing the positional relationship between the middle support plate fixing seat, the support plate, the punching assembly, and the punching die.

[0017] Figure 3 yes Figure 1 A partial structural diagram showing the positional relationship between the middle clamping assembly and the rear positioning assembly.

[0018] Figure 4 yes Figure 1 A schematic diagram of the structure from a top-down view.

[0019] Figure 5 yes Figure 4 A partial structural diagram of the front half.

[0020] Figure 6 yes Figure 4 A schematic diagram of the partial structure of the middle and rear half. Detailed Implementation

[0021] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and preferred embodiments.

[0022] For ease of description, here we will use Figure 1 The left-hand direction shown is defined as "forward". Figure 1 The right-hand direction shown is defined as "back". Figure 4 The upward direction shown is defined as "right". Figure 4 The direction shown below is defined as "left", and all directional terms involved in this utility model shall be based on this.

[0023] In the description of this utility model, it should be noted that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The three-station fully automatic tube shrinking, end-punching and hole-forming machine described in this embodiment, such as Figure 1 and Figure 3As shown, the system includes: a base 1, on which a clamping assembly 2 for clamping the pipe 20 is mounted. The clamping assembly 2 has the following structure: a clamping seat is fixedly mounted on the base 1; a lower clamping mold 24 is fixedly mounted on the clamping seat; the cylinder body of a clamping cylinder 21 is fixedly mounted on the clamping seat, and the piston rod of the clamping cylinder 21 points downwards; an upper clamping mold 22 is fixedly connected to the end of the piston rod of the clamping cylinder 21, and the upper clamping mold 22 is located above the lower clamping mold 24. When it is necessary to clamp the pipe 20, the piston rod of the clamping cylinder 21 extends outwards, causing the upper clamping mold 22 to move downwards until the upper clamping mold 22 clamps the pipe 20 between the upper clamping mold 22 and the lower clamping mold 24. When it is necessary to release the pipe 20, the piston rod of the clamping cylinder 21 retracts inwards, causing the upper clamping mold 22 to move upwards, releasing the pipe 20.

[0026] like Figure 1 and Figure 3 As shown, in this embodiment, a rear positioning assembly 3 is provided on the base 1, and the rear positioning assembly 3 is located behind the clamping assembly 2. The structure of the rear positioning assembly 3 in this embodiment is as follows: a rear positioning seat 31 is fixedly provided on the base 1, and a connecting threaded hole is provided on the rear positioning seat 31. An adjusting rod 32 is screwed sequentially through the external thread section on the adjusting rod 32 to the rear locking nut 33, then through the connecting threaded hole, and finally extends out in front of the connecting threaded hole. A rear positioning baffle 34 is fixedly connected to the end of the adjusting rod 32 extending out in front of the connecting threaded hole. The connecting threaded hole can be directly opened on the rear positioning seat 31, or a through hole can be opened on the rear positioning seat 31, and then a bushing 35 with a connecting threaded hole is fixedly embedded in the through hole.

[0027] The pallet fixing seat 6 is mounted on the machine base 1 via a front-to-back sliding device, and the pallet fixing seat 6 can move back and forth relative to the machine base 1 via the front-to-back sliding device. The pallet fixing seat 6 is located in front of the clamping assembly 2. Figure 1 and Figure 4 As shown, the structure of the forward and backward sliding device in this embodiment is as follows: the pallet fixing seat 6 is mounted on the machine base 1 via a shrinking tube linear guide rail. A main cylinder seat 61 is fixedly mounted on the machine base 1. The cylinder body 62 of the main cylinder is fixedly installed on the main cylinder seat 61, and the end of the piston rod 63 of the main cylinder is fixedly connected to the pallet fixing seat 6. When the piston rod 63 of the main cylinder retracts inward, it pulls the pallet fixing seat 6 forward along the shrinking tube linear guide rail; when the piston rod 63 of the main cylinder extends outward, it pushes the pallet fixing seat 6 backward along the shrinking tube linear guide rail.

[0028] like Figure 1 and Figure 4 As shown, the tray 7 is mounted on the tray fixing base 6 via a left-right sliding device, and the tray 7 can move left and right relative to the tray fixing base 6 via the left-right sliding device. Figure 4 and Figure 5 As shown, the structure of the left and right sliding device in this embodiment is as follows: the pallet 7 is mounted on the pallet fixing seat 6 via a mold-changing linear guide rail; a mold-changing servo motor 71 is fixedly mounted on the pallet fixing seat 6; the motor shaft of the mold-changing servo motor 71 is fixedly connected to a ball screw 73; a bearing seat 72 supporting the connection between the motor shaft of the mold-changing servo motor 71 and the ball screw 73 is provided on the pallet fixing seat 6; a support seat 75 supporting the other end of the ball screw 73 is provided on the pallet 6; and an adjusting threaded hole that mates with the ball screw 73 is provided on the pallet 6. The adjusting threaded hole can be directly formed on the pallet 6, or a mounting hole can be formed on the pallet 6, and then a connecting sleeve 74 with the adjusting threaded hole can be fixedly fitted into the mounting hole.

[0029] Assuming that when the mold-changing servo motor 71 rotates forward, driving the ball screw 73 to rotate, the support plate 7 moves to the left through the helical transmission formed between the adjusting threaded hole and the ball screw 73. Then, when the mold-changing servo motor 71 rotates in reverse, driving the ball screw 73 to rotate, the support plate 7 moves to the right through the helical transmission formed between the adjusting threaded hole and the ball screw 73.

[0030] like Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, a tube-shrinking mold 8, a punching mold 9, and a broaching mold 10 are arranged sequentially from left to right on the support plate 7. The tube-shrinking mold 8 has a tube-shrinking cavity. The punching mold 9 has at least one punch 91, a cavity for accommodating the tube 20, and a mold core inserted into the tube 20; each punch 91 penetrates the top of the cavity and the mold core. The broaching mold 10 has a broaching cavity. A punching assembly 4 is provided on the punching mold 9. Figure 1 and Figure 2 As shown, the structure of the punching assembly 4 is as follows: a punching cylinder 41 is fixedly installed on the top of the punching die 9, the piston rod of the punching cylinder 41 points downward, and a punch seat 42 is fixedly connected to the end of the piston rod of the punching cylinder 41. Punches 43 corresponding to the number and position of punches 91 on the punching die 9 are provided on the punch seat 42. A guide die 44 is also fixedly installed on the top of the punching die 9, and guide holes 45 corresponding to the number and position of each punch 43 are opened in the guide die 44.

[0031] like Figure 4 and Figure 6As shown, in this embodiment, a front positioning assembly 5 is provided on the base 1. The structure of the front positioning assembly 5 is as follows: a front positioning cylinder 51 is fixedly installed on the base 1, a connecting rod 52 is fixedly provided at the end of the piston rod of the front positioning cylinder 51, and a front positioning baffle 53 is fixedly provided at the end of the connecting rod 52. When the piston rod of the front positioning cylinder 51 extends outward, the front positioning baffle 53 can block the front of the clamping assembly 2.

[0032] More preferably, in this embodiment, a front positioning baffle seat is fixedly provided at the end of the connecting rod 52, and a through mounting threaded hole is provided on the front positioning baffle seat. A threaded rod 54 is fixedly connected to the front positioning baffle 53, and the threaded rod 54 is screwed into the mounting threaded hole and the front locking nut 55 in sequence.

[0033] The working principle of the above-mentioned three-station fully automatic tube shrinking, punching and perforating machine is as follows:

[0034] First, place the pipe 20 in the clamping assembly 2, activate the front positioning cylinder 51 to extend the front positioning baffle 53 into the front of the clamping assembly 2, then place the front end of the pipe 20 against the front positioning baffle 53, and place the rear positioning baffle 34 against the rear end of the pipe 20 to lock the rear positioning baffle 20 in this position, so that the clamping assembly 2 clamps the pipe 20. Then activate the front positioning cylinder 51 to return the front positioning baffle 53 to its original position.

[0035] Next, the left and right sliding device moves the support plate 7 to the left or right until the shrinking mold 8 is positioned directly in front of the pipe 20. Then, the front and rear sliding device moves the support plate fixing seat 6 backward, driving the shrinking mold 8 backward to perform shrinking operation on the front end of the pipe 20. After the shrinking operation is completed, the front and rear sliding device moves the support plate fixing seat 6 forward to the original front position.

[0036] Next, the pallet 7 is moved to the left by the left and right sliding device until the punching die 9 is moved to the front of the pipe 20. Then, the pallet fixing seat 6 is moved backward by the front and back sliding device until the tube shrinking part of the pipe 20 enters the punching die 9. Then, the tube shrinking part of the pipe is punched by the punching assembly 4. After punching is completed, the pallet fixing seat 6 is moved forward to the original front position by the front and back sliding device.

[0037] Next, the pallet 7 is moved to the left by the left and right sliding device until the end-closing mold 10 is moved to the front of the pipe 20. Then, the pallet fixing seat 6 is moved backward by the front and back sliding device to perform end-closing operation on the front end of the pipe 20. After the end-closing operation is completed, the pallet fixing seat 6 is moved forward to the original front position by the front and back sliding device.

[0038] After removing the tube 20 from the clamping assembly 2, repeat the above steps to perform tube shrinking, punching, and end-wrapping processing on the next tube 20.

[0039] The aforementioned three-station fully automatic tube shrinking, end-wrapping, and punching machine integrates tube shrinking, end-wrapping, and punching on the same machine. Compared with the traditional separate tube shrinking, punching, and end-wrapping equipment, it occupies significantly less space, saves time and labor, and greatly improves processing efficiency. In addition, using this equipment, the three processes of tube shrinking, end-wrapping, and punching can be completed in a single clamping, which greatly improves processing accuracy and results in a high product qualification rate.

[0040] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any modifications or equivalent changes made based on the technical essence of the present utility model shall still fall within the scope of protection claimed by the present utility model.

Claims

1. A three-station full-automatic pipe shrinking, flaring and punching integrated machine, comprising: A base, on which a clamping assembly for clamping pipes is provided; characterized in that: a rear positioning assembly is provided on the base, the rear positioning assembly being located behind the clamping assembly; a pallet fixing seat is provided on the base via a front-to-back sliding device, and the pallet fixing seat can move back and forth relative to the base via the front-to-back sliding device, the pallet fixing seat being located in front of the clamping assembly; a pallet is provided on the pallet fixing seat via a left-to-right sliding device, and the pallet can move left and right relative to the pallet fixing seat via the left-to-right sliding device; a pipe shrinking die, a punching die, and a broaching die are arranged sequentially from left to right on the pallet, and a punching assembly is provided on the punching die.

2. The three-station full-automatic pipe shrinking, flaring and punching integrated machine of claim 1, wherein: The clamping assembly is structured as follows: a clamping seat is fixedly mounted on the base, a lower clamping mold is fixedly mounted on the clamping seat, the cylinder body of the clamping cylinder is fixedly mounted on the clamping seat, and the piston rod of the clamping cylinder points downward. An upper clamping mold is fixedly connected to the end of the piston rod of the clamping cylinder, and the upper clamping mold is located above the lower clamping mold. When the piston rod of the clamping cylinder retracts inward or extends outward, it can drive the upper clamping mold to move up and down relative to the lower clamping mold, thereby releasing or clamping the pipe located between the lower clamping mold and the upper clamping mold.

3. The three-station full-automatic pipe shrinking, flaring and punching integrated machine of claim 1 or 2, characterized in that: The structure of the rear positioning assembly is as follows: a rear positioning seat is fixedly installed on the base, and a connecting threaded hole is provided on the rear positioning seat. The adjusting rod is screwed sequentially through the external thread section on the adjusting rod to the rear locking nut and the connecting threaded hole, and then extends out of the front of the connecting threaded hole. A rear positioning baffle is fixedly connected to the end of the adjusting rod that extends out of the connecting threaded hole.

4. The three-station full-automatic pipe shrinking, flaring and punching integrated machine of claim 3, characterized in that: A front positioning assembly is provided on the machine base. The structure of the front positioning assembly is as follows: a front positioning cylinder is fixedly installed on the machine base, a connecting rod is fixedly provided at the end of the piston rod of the front positioning cylinder, and a front positioning baffle is fixedly provided at the end of the connecting rod. When the piston rod of the front positioning cylinder extends outward, the front positioning baffle can block the front of the clamping assembly.

5. The three-station full-automatic pipe shrinking, flaring and punching integrated machine of claim 4, characterized in that: A front positioning baffle seat is fixedly installed at the end of the connecting rod. A through-hole is provided on the front positioning baffle seat. A threaded rod is fixedly connected to the front positioning baffle. The threaded rod is screwed into the through-hole and the front locking nut in sequence.

6. The three-station full-automatic pipe shrinking, flaring and punching integrated machine of claim 1, wherein: The structure of the front and rear sliding device is as follows: the pallet fixing seat is set on the machine base through the shrinking tube linear guide rail, the main cylinder seat is fixedly set on the machine base, the cylinder body of the main cylinder is fixedly installed on the main cylinder seat, and the end of the piston rod of the main cylinder is fixedly connected to the pallet fixing seat; when the piston rod of the main cylinder retracts inward or extends outward, it can push the pallet fixing seat to move back and forth along the shrinking tube linear guide rail.

7. The three-station full-automatic pipe shrinking, flaring and punching integrated machine of claim 1 or 6, characterized in that: The structure of the left and right sliding device is as follows: the pallet is set on the pallet fixing seat via a mold changing linear guide rail; a mold changing servo motor is fixedly set on the pallet fixing seat; the motor shaft of the mold changing servo motor is fixedly connected to a ball screw; a bearing seat for the ball screw at the connection between the motor shaft of the mold changing servo motor and the ball screw is provided on the pallet fixing seat; a support seat for the other end of the ball screw is provided on the pallet fixing seat; and an adjusting threaded hole that mates with the ball screw is provided on the pallet.

8. The three-station full-automatic pipe shrinking, flaring and punching integrated machine of claim 1, wherein: The structure of the punching assembly is as follows: a punching cylinder is fixedly installed on the top of the punching die, the piston rod of the punching cylinder points downward, a punch seat is fixedly connected to the end of the piston rod of the punching cylinder, and punches corresponding to the number and position of punches on the punching die are provided on the punch seat.

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