Automatic clamping and drilling device for machine heads of double pipe bending machines
By designing an automatic clamping and drilling device on the head of the double pipe bending machine, the problem of needing to clamp the pipe twice after bending is solved, enabling direct drilling on the pipe bending machine and improving drilling accuracy and operating efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHANGJIAGANG XINGYU MACHINERY MFG
- Filing Date
- 2023-12-06
- Publication Date
- 2026-04-17
AI Technical Summary
Existing double pipe bending machines require secondary clamping for drilling after pipe bending, which is time-consuming, labor-intensive, and difficult to accurately position.
Design an automatic clamping and drilling device for a double pipe bending machine head, including a clamping frame, a fixed base, a clamping mold base, a mounting frame and a servo motor. The device achieves automatic clamping and drilling of the pipe through a sliding structure, and the pipe is processed directly on the pipe bending machine using a milling cutter or a drill bit.
It enables direct drilling on the pipe bending machine, saving time and effort, improving the accuracy of drilling positions, and simplifying the operation process.
Smart Images
Figure CN224128648U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a double pipe bending machine, and more particularly to an automatic clamping and drilling device for the head of a double pipe bending machine. Background Technology
[0002] Pipe bending machines, as the main mechanical equipment for bending pipes, are widely used in shipbuilding, power construction, railway and highway construction, and bridge construction. With the continuous improvement of my country's comprehensive national strength and the increasing demand for various types of bent pipes, the market has increasingly higher requirements for the functions and performance of pipe bending machines.
[0003] Currently available double pipe bending machines can only bend pipes. If holes need to be machined in the bent pipes, the bent pipes need to be removed from the double pipe bending machine and then clamped onto a drilling machine or milling machine for drilling. This second clamping is not only time-consuming and labor-intensive, but also prone to problems such as inaccurate drilling position. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an automatic clamping and drilling device for a double pipe bending machine head, which can be used to drill holes directly on the pipe bending machine without removing the bent pipe from the machine, thus saving time and effort.
[0005] To solve the above problems, the technical solution adopted by this utility model is as follows: the automatic clamping and drilling device for the double pipe bending machine head includes: a clamping frame fixedly mounted on the double pipe bending machine head; a fixed seat mounted on the clamping frame via a first vertical sliding structure, and the fixed seat can move up and down relative to the clamping frame via the first vertical sliding structure; a clamping die base mounted on the fixed seat via a second vertical sliding structure; a clamping upper die fixedly mounted at the bottom of the clamping die base; and an upper die cavity corresponding to and matching the outer contour of the pipe at the bottom of the clamping upper die; a processing platform is provided on the fixed seat. The processing platform has a first through-hole. A clamping lower die is fixedly installed on the platform. The top of the clamping lower die has a lower die cavity that matches the outer contour of the pipe. The clamping lower die is located below the clamping upper die. After the clamping upper die moves downward through a second vertical sliding structure, it can clamp the pipe between the upper die cavity of the clamping upper die and the lower die cavity of the clamping lower die. A second through-hole is provided on the clamping lower die. The first and second processing holes are coaxial. The mounting frame is installed on the fixed base through a third vertical sliding structure. Drilling can be done with a drill bit or a milling cutter. Therefore, this solution has a milling cutter assembly or a drilling assembly on the mounting frame. The milling cutter in the milling cutter assembly or the drill bit in the drilling assembly can pass through the first and second processing holes to process the pipe between the upper die cavity of the clamping upper die and the lower die cavity of the clamping lower die.
[0006] There are various structural forms of the second sliding device available on the market. In principle, any sliding device that can enable the clamping die to move up and down relative to the fixed seat can be used on the automatic clamping and drilling device of the double pipe bending machine head. Considering the overall spatial arrangement, clamping stability, and ease of operation, this solution designs the second sliding device as follows: The second vertical sliding structure is as follows: A clamping cylinder is fixedly installed on the fixed seat. The piston rod of the clamping cylinder points downward, and the end of the piston rod is fixedly connected to the clamping die. When the piston rod of the clamping cylinder retracts inward or extends outward, it can drive the upper clamping die to move upward or downward. After the upper clamping die presses the pipe downward under the drive of the clamping cylinder, the clamping cylinder will always give the upper clamping die a constant downward force. This force can ensure that the upper and lower clamping dies firmly clamp the pipe and prevent it from loosening.
[0007] Similarly, considering the spatial arrangement of the overall structure and the ease of operation, this solution designs the following third vertical sliding structure: the mounting bracket is mounted on the fixed base via a linear guide rail. A feed servo motor is fixedly mounted on the fixed base, and the motor shaft of the feed servo motor is fixedly connected to a ball screw. The mounting bracket has threaded holes that mate with the ball screw, and the mounting bracket is screwed onto the ball screw through these threaded holes. In this solution, the ball screw is installed as follows: a bearing seat with a bearing assembly is provided on the fixed base, and the ball screw is supported by the bearing assembly.
[0008] When milling holes with a milling cutter, a milling cutter assembly is mounted on a mounting bracket. The milling cutter assembly has the following structure: a servo motor is fixedly mounted on the mounting bracket, the motor shaft of the servo motor points upwards, and the motor shaft is fixedly connected to the milling cutter shank via a milling cutter chuck. Besides milling, holes can also be machined using a drill bit. In this case, a drilling assembly is mounted on the mounting bracket. The drilling assembly has the following structure: a servo motor is fixedly mounted on the mounting bracket, the motor shaft of the servo motor points upwards, and the motor shaft is fixedly connected to the drill bit shank via a drilling chuck.
[0009] Furthermore, in the aforementioned automatic clamping and drilling device for the double pipe bending machine head, the fixed base consists of a processing platform, an upper fixed base located at the top of the processing platform, and a lower fixed base located at the bottom of the processing platform. The clamping mold base is installed on the upper fixed base via a second vertical sliding structure, and the mounting frame is installed on the lower fixed base via a third vertical sliding structure. An upper reinforcing rib is provided between the upper fixed base and the processing platform, and a lower reinforcing rib is provided between the processing platform and the lower fixed base to enhance the overall strength of the fixed base.
[0010] The beneficial effects of this utility model are: the above-mentioned device has a simple and compact structure, occupies little space, and when using this device, there is no need to remove the bent pipe from the pipe bending machine. The bent pipe can be drilled directly on the pipe bending machine, which saves time and effort. Moreover, there is no need for secondary positioning, which greatly improves the accuracy of the drilling position. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the automatic clamping and drilling device for the double pipe bending machine head described in this utility model.
[0012] Figure 2 yes Figure 1 A magnified schematic diagram of the upper middle section.
[0013] Figure 3 yes Figure 1 A magnified schematic diagram of the lower half of the structure. Detailed Implementation
[0014] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and preferred embodiments.
[0015] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0016] 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. Example 1
[0017] In this embodiment, the automatic clamping and drilling device for the double pipe bending machine head is installed on the machine head of the double pipe bending machine, such as... Figure 1 and Figure 2As shown, the device includes: a clamping frame 1 fixedly mounted on the head of a double pipe bending machine; a fixed seat 2 mounted on the clamping frame 1 via a first vertical sliding structure, and the fixed seat 2 being able to move up and down relative to the clamping frame 1 via the first vertical sliding structure. The first vertical sliding structure can be a commercially available sliding structure, as long as it enables the fixed seat 2 to move up and down relative to the clamping frame 1. This embodiment provides a sliding structure where the fixed seat 2 is mounted on the clamping frame 1 using a vertical linear guide rail, and then a hydraulic cylinder drives the fixed seat 2 to move up and down along the vertical linear guide rail.
[0018] like Figure 2 and Figure 3 As shown, the clamping mold base 3 is mounted on the fixed base 2 via a second vertical sliding structure. A clamping upper mold 31 is fixedly mounted on the bottom of the clamping mold base 3, and the bottom of the clamping upper mold 31 is provided with an upper mold cavity 311 that corresponds to and matches the outer contour of the pipe. A processing platform 22 is provided on the fixed base 2, and a first processing hole 221 that runs vertically through the pipe is opened on the processing platform 22. A clamping lower mold 9 is fixedly mounted on the processing platform 22, and the top of the clamping lower mold 9 is provided with a lower mold cavity 91 that corresponds to and matches the outer contour of the pipe. The clamping lower mold 9 is located below the clamping upper mold 31, and the clamping upper mold 31 can clamp the pipe between the upper mold cavity 311 of the clamping upper mold 31 and the lower mold cavity 91 of the clamping lower mold 9 after moving downward via the second vertical sliding structure. A second processing hole that runs vertically through the pipe is opened on the clamping lower mold 9, and the first processing hole 221 and the second processing hole are coaxial.
[0019] like Figure 1 and Figure 2 As shown, in this embodiment, the second vertical sliding structure is as follows: a clamping cylinder 32 is fixedly installed on the fixed base 2, the piston rod of the clamping cylinder 32 points downward, and the end of the piston rod of the clamping cylinder 32 is fixedly connected to the clamping mold base 3. During operation, when the piston rod of the clamping cylinder 32 retracts inward, it drives the upper clamping mold 31 to move upward, moving the upper clamping mold 31 away from the lower clamping mold 9, thereby releasing the pipe located between the upper mold cavity 311 of the upper clamping mold 31 and the lower mold cavity 91 of the lower clamping mold 9. When the piston rod of the clamping cylinder 32 extends outward, it drives the upper clamping mold 31 to move downward, moving the upper clamping mold 31 closer to the lower clamping mold 9, until the pipe located between the upper mold cavity 311 of the upper clamping mold 31 and the lower mold cavity 91 of the lower clamping mold 9 is clamped.
[0020] like Figure 1 and Figure 3As shown, in this embodiment, the mounting bracket 4 is mounted on the fixed base 2 via a third vertical sliding structure. A milling cutter assembly is mounted on the mounting bracket 4. The milling cutter 42 in the milling cutter assembly can pass through the first machining hole 221 and the second machining hole to machine holes in the tube between the upper mold cavity 311 clamped to the upper mold 31 and the lower mold cavity 91 clamped to the lower mold 9. The third vertical sliding structure in this embodiment is as follows: the mounting bracket 4 is mounted on the fixed base 2 via a linear guide rail. A feed servo motor 5 is fixedly mounted on the fixed base 2. The motor shaft of the feed servo motor 5 is fixedly connected to the ball screw 8. A threaded hole is provided on the mounting bracket 4 to mate with the ball screw 8. The mounting bracket 4 is screwed onto the ball screw 8 through the threaded hole. The ball screw 8 is installed as follows: a bearing seat 7 with a bearing assembly is provided on the fixed base 2, and the ball screw 8 is supported by the bearing assembly. Assuming that when the feed servo motor 5 rotates forward, driving the ball screw 8 to rotate, it forces the mounting bracket 4 to move upward along the linear guide. At this time, the milling cutter assembly is activated, and the milling cutter in the milling cutter assembly passes through the first machining hole 221 and the second machining hole to machine the tube between the upper die cavity 311 clamped to the upper die 31 and the lower die cavity 91 clamped to the lower die 9. Conversely, when the feed servo motor 5 rotates in reverse, driving the ball screw 8 to rotate, it forces the mounting bracket 4 to move downward along the linear guide and return to its original position.
[0021] like Figure 1 and Figure 3 As shown, the structure of the milling cutter assembly in this embodiment is as follows: a servo motor 43 is fixedly mounted on the mounting bracket 4, the motor shaft of the servo motor 43 points upward, and the motor shaft of the servo motor 43 is fixedly connected to the tool holder of the milling cutter 42 through the milling cutter chuck 41.
[0022] See Figure 2 and Figure 3 As shown, the fixing base 2 in this embodiment consists of a processing platform 22, an upper fixing base 21 disposed on the top of the processing platform 22, and a lower fixing base 23 disposed at the bottom of the processing platform 22. The clamping mold base 31 is mounted on the upper fixing base 21 via a first vertical sliding structure, and the mounting bracket 4 is mounted on the lower fixing base 23 via a second vertical sliding structure. An upper reinforcing rib 61 is provided between the upper fixing base 21 and the processing platform 22, and a lower reinforcing rib 62 is provided between the processing platform 22 and the lower fixing base 23 to improve the overall strength of the fixing base.
[0023] The above-mentioned device has a simple and compact structure and occupies little space. When using this device, there is no need to remove the bent pipe from the pipe bending machine. The bent pipe can be drilled directly on the pipe bending machine, which saves time and effort. Moreover, there is no need for secondary positioning, which greatly improves the accuracy of the drilling position. Example 2
[0024] In this embodiment, the automatic clamping and drilling device for the double pipe bending machine head is installed on the machine head of the double pipe bending machine, as shown below. Figure 1 and Figure 2 As shown, the device includes: a clamping frame 1 fixedly mounted on the head of a double pipe bending machine; a fixed seat 2 mounted on the clamping frame 1 via a first vertical sliding structure, and the fixed seat 2 being able to move up and down relative to the clamping frame 1 via the first vertical sliding structure. The first vertical sliding structure can be a commercially available sliding structure, as long as it enables the fixed seat 2 to move up and down relative to the clamping frame 1. This embodiment provides a sliding structure where the fixed seat 2 is mounted on the clamping frame 1 using a vertical linear guide rail, and then a hydraulic cylinder drives the fixed seat 2 to move up and down along the vertical linear guide rail.
[0025] like Figure 2 and Figure 3 As shown, the clamping mold base 3 is mounted on the fixed base 2 via a second vertical sliding structure. A clamping upper mold 31 is fixedly mounted on the bottom of the clamping mold base 3, and the bottom of the clamping upper mold 31 is provided with an upper mold cavity 311 that corresponds to and matches the outer contour of the pipe. A processing platform 22 is provided on the fixed base 2, and a first processing hole 221 that runs vertically through the pipe is opened on the processing platform 22. A clamping lower mold 9 is fixedly mounted on the processing platform 22, and the top of the clamping lower mold 9 is provided with a lower mold cavity 91 that corresponds to and matches the outer contour of the pipe. The clamping lower mold 9 is located below the clamping upper mold 31, and the clamping upper mold 31 can clamp the pipe between the upper mold cavity 311 of the clamping upper mold 31 and the lower mold cavity 91 of the clamping lower mold 9 after moving downward via the second vertical sliding structure. A second processing hole that runs vertically through the pipe is opened on the clamping lower mold 9, and the first processing hole 221 and the second processing hole are coaxial.
[0026] like Figure 1 and Figure 2 As shown, in this embodiment, the second vertical sliding structure is as follows: a clamping cylinder 32 is fixedly installed on the fixed base 2, the piston rod of the clamping cylinder 32 points downward, and the end of the piston rod of the clamping cylinder 32 is fixedly connected to the clamping mold base 3. During operation, when the piston rod of the clamping cylinder 32 retracts inward, it drives the upper clamping mold 31 to move upward, moving the upper clamping mold 31 away from the lower clamping mold 9, thereby releasing the pipe located between the upper mold cavity 311 of the upper clamping mold 31 and the lower mold cavity 91 of the lower clamping mold 9. When the piston rod of the clamping cylinder 32 extends outward, it drives the upper clamping mold 31 to move downward, moving the upper clamping mold 31 closer to the lower clamping mold 9, until the pipe located between the upper mold cavity 311 of the upper clamping mold 31 and the lower mold cavity 91 of the lower clamping mold 9 is clamped.
[0027] like Figure 1 and Figure 3As shown, in this embodiment, the mounting bracket 4 is mounted on the fixed base 2 via a third vertical sliding structure. A drilling assembly is provided on the mounting bracket 4, and the drill bit in the drilling assembly can pass through the first machining hole 221 and the second machining hole to machine holes in the pipe between the upper mold cavity 311 clamped to the upper mold 31 and the lower mold cavity 91 clamped to the lower mold 9. The third vertical sliding structure in this embodiment is as follows: the mounting bracket 4 is mounted on the fixed base 2 via a linear guide rail. A feed servo motor 5 is fixedly mounted on the fixed base 2, and the motor shaft of the feed servo motor 5 is fixedly connected to the ball screw 8. A threaded hole is provided on the mounting bracket 4 to mate with the ball screw 8, and the mounting bracket 4 is screwed onto the ball screw 8 through the threaded hole. The ball screw 8 is installed as follows: a bearing seat 7 with a bearing assembly is provided on the fixed base 2, and the ball screw 8 is supported by the bearing assembly. Assuming that when the feed servo motor 5 rotates forward, driving the ball screw 8 to rotate, it forces the mounting bracket 4 to move upward along the linear guide. At this time, the drilling assembly is activated, and the drill bit in the drilling assembly passes through the first machining hole 221 and the second machining hole to machine the tube between the upper die cavity 311 clamped to the upper die 31 and the lower die cavity 91 clamped to the lower die 9. Conversely, when the feed servo motor 5 rotates in reverse, driving the ball screw 8 to rotate, it forces the mounting bracket 4 to move downward along the linear guide and return to its original position.
[0028] See Figure 1 and Figure 3 As shown, the structure of the drilling assembly described in this embodiment is as follows: a servo motor 43 is fixedly mounted on the mounting bracket 4, the motor shaft of the servo motor 43 points upward, and the motor shaft of the servo motor 43 is fixedly connected to the drill bit shank through a drilling chuck.
[0029] See Figure 2 and Figure 3 As shown, the fixing base 2 in this embodiment consists of a processing platform 22, an upper fixing base 21 disposed on the top of the processing platform 22, and a lower fixing base 23 disposed at the bottom of the processing platform 22. The clamping mold base 31 is mounted on the upper fixing base 21 via a first vertical sliding structure, and the mounting bracket 4 is mounted on the lower fixing base 23 via a second vertical sliding structure. An upper reinforcing rib 61 is provided between the upper fixing base 21 and the processing platform 22, and a lower reinforcing rib 62 is provided between the processing platform 22 and the lower fixing base 23 to improve the overall strength of the fixing base.
[0030] The above-mentioned device has a simple and compact structure and occupies little space. When using this device, there is no need to remove the bent pipe from the pipe bending machine. The bent pipe can be drilled directly on the pipe bending machine, which saves time and effort. Moreover, there is no need for secondary positioning, which greatly improves the accuracy of the drilling position.
[0031] 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. Double-bend pipe machine head automatic clamping drilling device, comprising: A clamping frame fixedly mounted on the head of a double pipe bending machine is characterized in that: a fixed base is mounted on the clamping frame via a first vertical sliding structure, and the fixed base can move up and down relative to the clamping frame via the first vertical sliding structure; a clamping die base is mounted on the fixed base via a second vertical sliding structure, and an upper clamping die is fixedly mounted on the bottom of the clamping die base, the bottom of the upper clamping die having an upper die cavity corresponding to the outer contour of the pipe; a processing platform is provided on the fixed base, a first processing hole penetrating vertically is opened on the processing platform, and a lower clamping die is fixedly mounted on the processing platform, the top of the lower clamping die having an upper die cavity corresponding to the outer contour of the pipe. The lower mold cavity is located below the upper mold. The upper mold can clamp the pipe between the upper mold cavity and the lower mold cavity after moving downward through the second vertical sliding structure. A second machining hole is provided on the lower mold, and the first machining hole and the second machining hole are coaxial. The mounting frame is mounted on the fixed base through the third vertical sliding structure. A milling cutter assembly or a drilling assembly is provided on the mounting frame. The milling cutter in the milling cutter assembly or the drill bit in the drilling assembly can pass through the first machining hole and the second machining hole to perform hole processing on the pipe clamped between the upper mold cavity of the upper mold and the lower mold cavity of the lower mold.
2. The double-bender head automatic clamping drilling device according to claim 1, characterized in that: The second vertical sliding structure is as follows: a clamping cylinder is fixedly installed on the fixed base, the piston rod of the clamping cylinder points downward, and the end of the piston rod of the clamping cylinder is fixedly connected to the clamping mold base; when the piston rod of the clamping cylinder retracts inward or extends outward, it can drive the clamping upper mold to move upward or downward.
3. Double-bending tube machine head automatic clamping drilling device according to claim 1 or 2, characterized in that: The third vertical sliding structure is as follows: the mounting bracket is mounted on the fixed base via a linear guide rail, and a feed servo motor is fixedly mounted on the fixed base. The motor shaft of the feed servo motor is fixedly connected to the ball screw. The mounting bracket is provided with a threaded hole that mates with the ball screw, and the mounting bracket is screwed onto the ball screw through the threaded hole.
4. The double-bender head automatic clamping drilling device according to claim 3, characterized in that: A bearing housing with a bearing assembly is provided on the fixed base, and the ball screw is supported by the bearing assembly.
5. The double-bending machine head automatic clamping drilling device according to claim 1, characterized in that: The structure of the milling cutter assembly is as follows: a servo motor is fixedly mounted on the mounting bracket, the motor shaft of the servo motor points upward, and the motor shaft of the servo motor is fixedly connected to the milling cutter shank through the milling cutter chuck.
6. The double-bender head automatic clamping drilling device according to claim 1, characterized in that: The structure of the drilling assembly is as follows: a servo motor is fixedly mounted on the mounting bracket, the motor shaft of the servo motor points upward, and the motor shaft of the servo motor is fixedly connected to the drill bit shank through a drilling chuck.
7. Double-bending tube machine head automatic clamping drilling device according to claim 1 or 5 or 6, characterized in that: The fixed base consists of a processing platform, an upper fixed base located at the top of the processing platform, and a lower fixed base located at the bottom of the processing platform. The clamping mold base is installed on the upper fixed base via a second vertical sliding structure, and the mounting frame is installed on the lower fixed base via a third vertical sliding structure. An upper reinforcing rib is provided between the upper fixed base and the processing platform, and a lower reinforcing rib is provided between the processing platform and the lower fixed base.