Pneumatic inner clamping type multi-point punching equipment for loading arm

Abstract

The invention relates to the technical field of crane pipe punching, in particular to a crane pipe pneumatic inner clamping type multi-point punching device which comprises a support, an air pump, a chassis, a clamping mechanism, an air bin and a multi-stage punching mechanism. The lower end of the support is fixedly connected with the base plate, and an air pump is installed in the support. The air bin is installed on the side wall of the support. The clamping mechanism is mounted on the side wall of the bracket; the multi-stage punching mechanism is installed at one end of the support and movably connected with the main punch through the air bin. By adopting the internal clamping mechanism, the equipment can effectively prevent a pipe from deforming in the punching process; by means of the design of the arc-shaped blocks and the movable columns, it is guaranteed that the pipes are evenly supported and fixed during punching; and meanwhile, through the buckle type design and the arc-shaped structure of the arc-shaped block, the punching force can be uniformly dispersed, local stress concentration is reduced, and the punching precision and the product quality are further improved.

Description

Technical Field

[0001] The invention relates to the technical field of crane pipe punching, and in particular to a pneumatic inner-clamping multi-point punching device for crane pipes. Background Art

[0002] In modern manufacturing, punching of pipes is a common process, but existing punching equipment faces many challenges in handling this process. Due to the lack of effective fixing devices in traditional punching methods, pipes are prone to deformation during the punching process, which not only affects the punching accuracy, but may also lead to a decline in product quality. In addition, most existing fixtures are external clamps, which are difficult to provide sufficient support during punching, especially in multi-point punching operations, which are more likely to cause pipe displacement and deformation. Poor punching stability is also a prominent problem, especially when punching multiple punches at the same time, the synchronization and pressure balance between the punches are difficult to ensure, thus affecting the consistency and quality of punching. At the same time, when multiple punches are used for punching, existing equipment often cannot maintain the synchronous action of the punches, resulting in uneven punching quality.

[0003] In order to solve these problems, the present invention provides a pneumatic inner clamping multi-point punching device for a crane pipe to solve the problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is that during the punching process of the current pipe, due to the different material conditions, the pipe is not sufficiently supported during multi-point punching, resulting in displacement and deformation.

[0005] In order to solve the technical problem, the technical solution adopted by the present invention is: to provide a pneumatic internal clamping multi-point punching equipment for crane pipes, including a bracket, an air pump and a chassis; the lower end of the bracket is fixedly connected to the chassis, and an air pump is installed inside the bracket; it also includes a clamping mechanism, an air bin and a multi-stage punching mechanism; the air bin is installed on the side wall of the bracket; the clamping mechanism is installed on the side wall of the bracket, and the clamping mechanism pushes the movable column through the arc-shaped protrusion on the surface of the rotating disk, and then fixes the pipe to be punched through the arc-shaped block; the multi-stage punching mechanism is installed at one end of the bracket, and the multi-stage punching mechanism is movably connected to the main punch through the air bin, and then the auxiliary punch is pushed by air pressure to punch under the fixation of the main punch.

[0006] The clamping mechanism comprises a fixing block, an extension tube and a fitting assembly; the fixing block is fixedly connected to the bracket, one end of the extension tube is fixedly connected to the fixing block, and the other end is fixedly connected to the fitting assembly.

[0007] The fitting assembly includes a rotating disk, a movable column, a hinged column, an arc block and a support shell; the rotating disk is coaxially connected to the extension tube, and an opening is provided on the surface of the support shell, and the outer diameter of the opening is the same as the outer diameter of the movable column; the movable column is slidably connected in the opening, the hinged column is installed on the side wall of the support, and the support shell is fixedly connected to one end of the extension tube.

[0008] The rotating disk is arranged in a circular shape and has arc-shaped protrusions arranged at its edge, and three arc-shaped protrusions are arranged.

[0009] The arc block is configured to be arc-shaped and one end of which is configured to be snap-fit ​​type, and the end of the arc block that contacts the movable column is configured to be a flat structure.

[0010] The multi-stage punching mechanism includes a sliding frame, a screw, a support plate, a pallet and a punching head; the sliding frame is installed on the side wall of the chassis, the screw is installed inside the sliding frame, and the support plate connects the two ends of the sliding frame; the pallet is installed on the side wall of the sliding frame and is perpendicular to the sliding frame; the punching head is installed on the side wall of the support plate.

[0011] A circular hole is arranged on the surface of the support plate, and the highest point of the edge of the circular hole is lower than the highest point of the punching head.

[0012] The punching heads are provided with three and are arranged linearly, wherein the one in the middle is the main punch and the others are auxiliary punches; a plurality of air holes are provided on the surface of the gas bin, and the main punch is connected with the gas bin through the air holes.

[0013] The side wall of the main punch is equipped with an air guide device, one end of the auxiliary punch is equipped with an auxiliary air device, and the side wall of the air guide device is movably connected to the auxiliary air device.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention adopts an internal clamping mechanism, so that the equipment can effectively prevent the pipe from deforming during the punching process; the design of the arc block and the movable column ensures that the pipe is evenly supported and fixed during punching; at the same time, the buckle design and arc structure of the arc block can evenly disperse the punching force, reduce local stress concentration, and further improve the punching accuracy and product quality.

[0015] 2. The present invention flexibly connects the air bin with the main punch, and the auxiliary punch performs punching under the fixation of the main punch, thereby ensuring the synchronous action and pressure consistency of each punch, which not only improves the stability of the punching process, but also ensures the quality consistency of each punching point, avoiding product quality problems caused by uneven punching.

[0016] 3. The present invention combines the sliding frame with the screw drive, so that the equipment has the ability to flexibly adjust the punching position. The sliding frame can slide horizontally under the action of the screw, and punch holes on the surface of pipes of different lengths according to needs, and ensure punching without deformation. The design of the support plate and the circular hole not only fixes and limits the pipe, but also prevents the punching head from accidentally touching the pipe, reducing the risk of operating errors and equipment damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] The above and other aspects of the present invention will now be described, by way of example only, with reference to the accompanying drawings, in which: Figure 1 It is an overall schematic diagram of the present invention; Figure 2 It is a schematic diagram of the clamping mechanism of the present invention; Figure 3 It is a schematic diagram of the structure of the rotating disk of the present invention; Figure 4 It is a schematic diagram of the arc block structure of the present invention; Figure 5 is a partial cross-sectional view of the stent of the present invention; Figure 6 It is a schematic diagram of the gas storage structure of the present invention; Figure 7 It is a schematic diagram of the structure of the sliding frame of the present invention; Figure 8 It is a schematic diagram of the multi-stage punching mechanism of the present invention.

[0019] In the figure: 1. bracket; 2. air pump; 3. chassis; 4. clamping mechanism; 41. fixing block; 42. extension tube; 43. fitting assembly; 431. rotating disk; 4311. arc-shaped protrusion; 432. movable column; 433. hinged column; 434. arc-shaped block; 435. supporting shell; 4351. opening; 5. air chamber; 51. air hole; 6. multi-stage punching mechanism; 61. sliding frame; 62. lead screw; 63. supporting plate; 631. circular hole; 64. supporting plate; 65. punching head; 651. main punch; 652. auxiliary punch; 653. air guide device; 654. auxiliary air device. DETAILED DESCRIPTION

[0020] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figures 1 to 8 As shown, a pneumatic internal clamping multi-point punching device for crane pipes includes a bracket 1, an air pump 2, a chassis 3, a clamping mechanism 4, an air bin 5 and a multi-stage punching mechanism 6; the lower end of the bracket 1 is fixedly connected to the chassis 3, and the air pump 2 is installed inside the bracket 1; the air bin 5 is installed on the side wall of the bracket 1; the clamping mechanism 4 is installed on the side wall of the bracket 1, and the clamping mechanism 4 pushes the movable column 432 through the arc-shaped protrusion 4311 on the surface of the rotating disk 431, and then fixes the pipe to be punched through the arc block 434; the multi-stage punching mechanism 6 is installed at one end of the bracket 1, and the multi-stage punching mechanism 6 is movably connected to the main punch 651 through the air bin 5, and then the auxiliary punch 652 is pushed by air pressure to punch under the fixation of the main punch 651.

[0022] like Figure 1 As shown, the lower end of the bracket 1 is fixedly connected to the chassis 3, an air pump 2 is installed inside the bracket 1, an air chamber 5 is installed on the side wall of the bracket 1, and a clamping mechanism 4 is also installed on the side wall of the bracket 1, and the movable column 432 is pushed by the arc-shaped protrusion 4311 on the surface of the rotating disk 431, and then the pipe to be punched is fixed by the arc-shaped block 434; the multi-stage punching mechanism 6 is installed at one end of the bracket 1, and is movably connected with the main punch 651 through the air chamber 5, and the auxiliary punch 652 is pushed by air pressure to punch under the fixation of the main punch 651. The equipment of the present invention solves the problem of easy deformation in the punching process of traditional pipes, overcomes the displacement and deformation problems caused by insufficient support of the existing clamps during multi-point punching, and at the same time, through the design of the multi-stage punching mechanism 6, the synchronization and pressure balance of the punching operation of multiple punches are improved, the stability and accuracy of punching are significantly improved, and the consistency of product quality is ensured; the pipe is fixed by internal clamping, which effectively prevents the deformation of the pipe during the punching process, and improves the punching accuracy and product quality.

[0023] The clamping mechanism 4 includes a fixing block 41 , an extension tube 42 and a fitting assembly 43 ; the fixing block 41 is fixedly connected to the bracket 1 , one end of the extension tube 42 is fixedly connected to the fixing block 41 , and the other end is fixedly connected to the fitting assembly 43 .

[0024] The fitting component 43 includes a rotating disk 431, a movable column 432, a hinged column 433, an arc block 434 and a support shell 435; the rotating disk 431 is coaxially connected to the extension tube 42, and the surface of the support shell 435 is provided with an opening 4351, and the outer diameter of the opening 4351 is the same as the outer diameter of the movable column 432; the movable column 432 is slidably connected in the opening 4351, the hinged column 433 is installed on the side wall of the support, and the support shell 435 is fixedly connected to one end of the extension tube 42.

[0025] The rotating disk 431 is connected through a motor and is connected to the inside of the extension tube 42. At the same time, the extension tube 42 can be extended and adjusted according to the current punching position. After being fixed in position, the rotating disk 431 can rotate driven by the motor, and then the arc-shaped protrusion 4311 on the surface of the rotating disk 431 can gradually push the movable column 432 under the action of the arc, and then push the arc block 434 to fit the inner wall of the pipe.

[0026] like Figure 3 and Figure 4 As shown, the rotating disk 431 is arranged in a circular shape and an arc-shaped protrusion 4311 is arranged at the edge, and the arc-shaped protrusion 4311 is arranged in three; according to the specific punching requirements, the surface of the fitting component 43 is provided with corresponding positioning holes; by being arranged in an arc-shaped protrusion 4311, the movable column 432 can give the movable block enough space to retract when the motor does not give a rotating force, thereby releasing the fixation of the pipeline, and being arranged in three and in a circular array can disperse the stress of the inner wall of the pipeline, thereby ensuring that the pipeline will not be deformed due to punching during punching, and reducing material deformation caused by incorrect punching.

[0027] The lower end of the bracket 1 is fixedly connected to the chassis 3, an air pump 2 is installed inside, an air chamber 5 is installed on the side wall of the bracket 1, and the clamping mechanism 4 is also installed on the side wall of the bracket 1, and the movable column 432 is pushed by the arc-shaped protrusion 4311 on the surface of the rotating disk 431, and then the pipe to be punched is fixed by the arc-shaped block 434; the multi-stage punching mechanism 6 is installed at one end of the bracket 1, and is movably connected to the main punch 651 through the air chamber 5, and the auxiliary punch 652 is pushed by air pressure to punch under the fixation of the main punch 651; like Figure 2 As shown, the rotating disk 431 is coaxially connected with the extension tube 42, and the surface of the support shell 435 is provided with an opening 4351, the outer diameter of the opening 4351 is the same as the outer diameter of the movable column 432, the movable column 432 is slidably connected in the opening 4351, the hinge column 433 is installed on the side wall of the support, and the support shell 435 is fixedly connected with one end of the extension tube 42. The rotating disk 431 is connected through a motor and communicated through the inside of the extension tube 42. The extension tube 42 can be extended and adjusted according to the current punching position. After the fixed position, the rotating disk 431 rotates driven by the motor, and the arc-shaped protrusion 4311 on the surface of the rotating disk 431 gradually pushes the movable column 432 under the action of the arc, and then pushes the arc block 434 to fit the inner wall of the pipeline.

[0028] The rotating disk 431 is circular and has three arc-shaped protrusions 4311 at the edge. The surface of the fitting component 43 is provided with corresponding positioning holes. By setting the arc-shaped protrusions 4311, the movable column 432 gives the movable block enough space to retract when the motor does not provide rotational force, thereby releasing the fixation of the pipeline, and the annular array design of the three arc-shaped protrusions 4311 can disperse the stress of the inner wall of the pipeline, ensuring that the pipeline will not be deformed due to punching during punching, and reducing material deformation caused by incorrect punching. The present invention fixes the pipe by internal clamping, effectively preventing the deformation of the pipe during the punching process, improving the punching accuracy and product quality, ensuring the stability and consistency of the operation, and is suitable for various precision manufacturing and industrial processing scenarios.

[0029] The arc block 434 is configured to be arc-shaped and one end is configured to be snap-fit ​​type, and the end of the arc block 434 that contacts the movable column 432 is configured to be a flat structure; the snap-fit ​​type can ensure that when the movable column 432 pushes the arc block 434 to move, one end of the arc block 434 can have enough space for the other end to fit the inner wall of the pipe, and the force on the pipe surface can be dispersed through the structure of the arc block 434 itself, thereby improving the effect of dispersing force.

[0030] The arc block 434 is configured to be arc-shaped and one end is configured to be buckle-shaped, and the end of the arc block 434 that contacts the movable column 432 is configured to be a flat structure. The arc block 434 is designed to be buckle-shaped, so that when the movable column 432 pushes the arc block 434 to move, one end of the arc block 434 has enough space to allow the other end to fit the inner wall of the pipe, and the force on the pipe surface is dispersed through the structure of the arc block 434 itself, thereby improving the effect of dispersing force.

[0031] The beneficial effect of this design is that during the punching process, the arc block 434 can fit the inner wall of the pipe more stably, avoiding the problem of pipe deformation caused by single-point force. At the same time, the flat structure ensures the stability of the movable column 432 when in contact with the arc block 434, making the force transmission more uniform, which helps to improve the punching accuracy and quality. Through such a structural design, not only the stress on the surface of the pipe is effectively dispersed and the risk of material deformation is reduced, but also the stability and reliability of the equipment in multi-point punching operations are improved, which is suitable for high-precision and high-demand industrial processing scenarios.

[0032] like Figure 5 and Figure 6As shown, the multi-stage punching mechanism 6 includes a sliding frame 61, a lead screw 62, a support plate 63, a support plate 64 and a punching head 65; the sliding frame 61 is installed on the side wall of the chassis 3, the lead screw 62 is installed inside the sliding frame 61, and the support plate 63 is connected to both ends of the sliding frame 61; the support plate 64 is installed on the side wall of the sliding frame 61 and is perpendicular to the sliding frame 61; the punching head 65 is installed on the side wall of the support plate 63. The sliding frame 61 is arranged at one end of the bracket 1, and at the same time, the sliding frame 61 can slide horizontally under the action of the lead screw 62, so that according to the needs, it can punch holes on the surface of a sufficiently long pipe, and it is a non-deformation punching, and it can also ensure that the pipe will not be deformed due to multiple punching; the support plate 63 is used to connect the two ends of the sliding frame 61, and the circular hole 631 arranged on the surface of the support plate 63 can ensure the fixation and limit of the pipe, thereby further ensuring the process stability of the punching.

[0033] A circular hole 631 is provided on the surface of the support plate 63 , and the highest point of the edge of the circular hole 631 is lower than the highest point of the punching head 65 ; in this way, accidental contact between the punching head 65 and the pipe can be prevented.

[0034] like Figure 7 and Figure 8 As shown, the sliding frame 61 is arranged at one end of the bracket 1, and can slide horizontally under the action of the lead screw 62, so as to perform deformation-free punching on the surface of a sufficiently long pipe according to the needs, ensuring that the pipe will not be deformed due to multiple punching. The support plate 63 is used to connect the two ends of the sliding frame 61. The circular hole 631 arranged on the surface of the support plate 63 can fix and limit the pipe, further ensuring the stability of the punching process. The highest point of the edge of the circular hole 631 is lower than the highest point of the punching head 65, preventing the punching head 65 from accidentally touching the pipe.

[0035] The horizontal sliding function of the sliding frame 61 enables the equipment to flexibly adjust the punching position to meet the processing requirements of pipes of different lengths. At the same time, the drive of the lead screw 62 ensures the smoothness and accuracy of the sliding process. The design of the support plate 63 and the circular hole 631 effectively fixes and limits the pipe, avoids the displacement of the pipe during punching, and improves the accuracy and stability of punching. By preventing the punching head 65 from accidentally touching the pipe, the risk of errors and damage in operation is reduced, and the safety and reliability of the equipment are further improved. These designs enable the equipment to perform well in high-precision and high-demand industrial processing scenarios and meet various complex punching requirements.

[0036] The punching heads 65 are set to three and arranged linearly, among which the middle position is the main punch 651, and the rest are auxiliary punches 652; the surface of the air bin 5 is provided with a plurality of air holes 51, and the main punch 651 is connected with the air bin 5 through the air holes 51; in order to improve the efficiency of punching, and according to the needs, for the normal punching conditions, if three holes are punched at the same time, deformation problems will occur, so three holes are used for punching this time.

[0037] The side wall of the main punch 651 is installed with a gas guide device 653, and one end of the auxiliary punch 652 is installed with an auxiliary gas device 654, and the side wall of the gas guide device 653 is movably connected with the auxiliary gas device 654; in order to realize punching in sequence, the gas guide device 653 is used to slide up and down with the main punch 651, and the inside of the gas guide device 653 is in a closed state when no signal is received, so that the gas in the gas chamber 5 can push the main punch 651, and after the punching is completed, the gas port of the gas guide device 653 is fitted with the auxiliary gas device 654, and the gas port is opened, so that the auxiliary punch 652 is pressurized, and then the pipeline is punched.

[0038] When working, the device first adjusts the number and height of punching holes according to the pipe to be punched, then clamps the pipe into the clamping mechanism 4, and then starts the motor, and rotates the rotating disk to make the arc-shaped protrusion 4311 squeeze the movable column 432, so that the arc-shaped block 434 fits the inner wall of the pipe under the action of the hinge column 433, thereby fixing the pipe, and then by determining the punching position, closing the remaining air holes 51 in the air bin 5, leaving one air hole 51 connected to the main punch 651, and then applying the air pump 2. The main punch 651 is pushed by pressure to punch the pipe. When the main punch 651 finishes punching, the gas guide device 653 fits with the auxiliary gas device 654, and then the two devices are connected, so that the gas in the gas warehouse 5 is transferred to the auxiliary punch 652. At this time, the main punch 651 is embedded in the pipe, which can give the pipe a fixing effect. After the auxiliary punch 652 is finished, the air pump 2 is turned off, the punching of the equipment as a whole is completed, and then the motor is reversed to realize the release of the movable column 432 by the rotating disk 431.

[0039] The description herein is provided to enable one of ordinary skill in the art to implement or use the present disclosure. Various modifications to the present disclosure will be apparent to one of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of the present disclosure. Therefore, the present disclosure is not limited to the examples and designs described herein, but should be given the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pneumatic inner clamp type multi-point punching device for a crane pipe, comprising a bracket (1), an air pump (2) and a chassis (3); the lower end of the bracket (1) is fixedly connected to the chassis (3), and the inside of the bracket (1) is equipped with an air pump (2); the characteristics are: The invention also comprises a clamping mechanism (4), an air chamber (5) and a multi-stage punching mechanism (6); the air chamber (5) is mounted on the side wall of the bracket (1); the clamping mechanism (4) is mounted on the side wall of the bracket (1); the clamping mechanism (4) pushes the movable column (432) through the arc-shaped protrusion (4311) on the surface of the rotating disk (431), and then fixes the pipe to be punched through the arc-shaped block (434); the multi-stage punching mechanism (6) is mounted on one end of the bracket (1); the multi-stage punching mechanism (6) is movably connected to the main punch (651) through the air chamber (5), and then pushes the auxiliary punch (652) through air pressure to perform punching under the fixation of the main punch (651).

2. The pneumatic inner clamp multi-point punching equipment for crane pipes according to claim 1 is characterized in that: The clamping mechanism (4) comprises a fixing block (41), an extension tube (42) and a fitting assembly (43); the fixing block (41) is fixedly connected to the bracket (1); one end of the extension tube (42) is fixedly connected to the fixing block (41) and the other end is fixedly connected to the fitting assembly (43).

3. The pneumatic inner clamp multi-point punching equipment for crane pipes according to claim 2 is characterized in that: The fitting assembly (43) comprises a rotating disk (431), a movable column (432), a hinged column (433), an arc block (434) and a support shell (435); the rotating disk (431) is coaxially connected to the extension tube (42); an opening (4351) is provided on the surface of the support shell (435); the outer diameter of the opening (4351) is the same as the outer diameter of the movable column (432); the movable column (432) is slidably connected in the opening (4351), the hinged column (433) is installed on the side wall of the support, and the support shell (435) is fixedly connected to one end of the extension tube (42).

4. The pneumatic inner clamp multi-point punching equipment for crane pipes according to claim 3 is characterized in that: The rotating disk (431) is arranged in a circular shape and has an arc-shaped protrusion (4311) arranged at its edge, and the number of the arc-shaped protrusions (4311) is three.

5. The pneumatic inner clamp multi-point punching equipment for crane pipes according to claim 3 is characterized in that: The arc block (434) is configured to be arc-shaped and one end is configured to be snap-fit ​​type, and the end of the arc block (434) that contacts the movable column (432) is configured to be a flat structure.

6. The pneumatic inner clamp multi-point punching equipment for crane pipes according to claim 1 is characterized in that: The multi-stage punching mechanism (6) comprises a sliding frame (61), a lead screw (62), a support plate (63), a pallet (64) and a punching head (65); the sliding frame (61) is mounted on a side wall of a chassis (3); the lead screw (62) is mounted inside the sliding frame (61); the support plate (63) is connected to both ends of the sliding frame (61); the pallet (64) is mounted on a side wall of the sliding frame (61) and is perpendicular to the sliding frame (61); and the punching head (65) is mounted on a side wall of the support plate (63).

7. The pneumatic inner clamp multi-point punching equipment for crane pipes according to claim 6 is characterized in that: A circular hole (631) is provided on the surface of the support plate (63), and the highest point of the edge of the circular hole (631) is lower than the highest point of the punching head (65).

8. The pneumatic inner clamp multi-point punching equipment for crane pipes according to claim 6 is characterized in that: The punching heads (65) are provided in three numbers and are arranged linearly, wherein the punch head in the middle is a main punch head (651) and the others are auxiliary punch heads (652); a plurality of air holes (51) are provided on the surface of the gas chamber (5), and the main punch head (651) is connected to the gas chamber (5) through the air holes (51).

9. The pneumatic inner clamp multi-point punching device for crane pipes according to claim 8, characterized in that: An air guide device (653) is installed on the side wall of the main punch (651), an auxiliary air device (654) is installed on one end of the auxiliary punch (652), and the side wall of the air guide device (653) is movably connected to the auxiliary air device (654).

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