A trolley handle punching device

Abstract

The application relates to a trolley handle punching device which comprises a punching head with a punching groove arranged at the head end of the punching head; an inner lining rod is arranged on a machine table; a storage groove is arranged on the arc outer wall of the inner lining rod; a through hole is arranged on the arc outer wall of the inner lining rod along the radial direction of the inner lining rod; the central axis of the through hole is arranged in a perpendicular manner with the central axis of the storage groove, and the through hole and the storage groove are arranged in a staggered manner in the axial direction of the inner lining rod; a spiral groove is arranged on the arc outer wall of the inner lining rod and is communicated with the storage groove at one end and with the through hole at the other end, the groove depth of the spiral groove gradually increases from the storage groove to the through hole; a waste discharge channel is arranged in the axial direction of the inner lining rod and is communicated with the spiral groove; a material pushing piece is arranged on the groove wall of the spiral groove which is away from the waste discharge channel, and is used for pushing the punching waste to the waste discharge channel when the inner lining rod is rotated to the side of the punching head which is away from the punching waste.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of punching equipment, in particular to a handcart handle punching device. BACKGROUND

[0002] When a child handcart is produced, each component needs to be separately processed and then assembled. When the handle of the handcart is assembled with the push rod or the frame, the hollow pipe needs to be impact drilled; if an assembly hole is processed, the punch head needs to penetrate the pipe to form a double-sided assembly hole; and if a positioning adjustment hole is processed, the punch head only needs to penetrate one side of the pipe to form a single-sided adjustment hole.

[0003] However, during impact drilling, the punch head penetrating the pipe wall will cause the pipe wall to collapse to some extent, especially for thin-walled pipes with a wall thickness less than 1.2 mm, which is particularly serious during impact drilling, not only causing poor appearance, but also affecting the assembly fit and firmness of the handle and other components.

[0004] Moreover, during impact drilling, the waste generated by impact drilling will be left in the pipe, which needs to be inverted and poured out when the handle is transferred, especially after processing the bent pipe, the waste is difficult to pour out at one time; and when processing a double-sided assembly hole, the waste generated by the first impact drilling will interfere with the impact drilling of the subsequent punching position, which may cause misalignment or burrs. SUMMARY

[0005] In order to improve the problem that the punching position is prone to collapse and deformation during impact drilling of the handle pipe, and the punching waste affects the quality of subsequent impact drilling, the present application provides a handcart handle punching device.

[0006] The handcart handle punching device provided by the present application adopts the following technical scheme:

[0007] A handcart handle punching device, comprising a machine table, a punching mechanism and a fixed clamp, the punching mechanism comprising a punch head and a driving assembly, the punch head having a head end with a groove with a groove depth less than the wall thickness of a pipe to be processed; the machine table is provided with:

[0008] An inner lining rod cooperates with the fixed clamp to position the pipe to be processed;

[0009] A storage groove is provided on the outer arc wall of the inner lining rod and is adapted to the punch head;

[0010] A through hole is provided on the outer arc wall of the inner lining rod along the radial direction of the inner lining rod, the central axis of the through hole is perpendicular to the central axis of the storage groove, and the through hole and the storage groove are located in different positions in the axial direction of the inner lining rod.

[0011] A spiral groove is formed on the outer wall of the arc surface of the inner lining rod, and one end of the spiral groove is communicated with the storage groove, and the other end is communicated with the through hole;

[0012] A waste discharge channel is formed along the axial direction of the inner lining rod and communicated with the spiral groove;

[0013] A material pushing piece is arranged on the side wall of the spiral groove away from the waste discharge channel, and is used to realize that when the punch hole waste side of the punch head abuts against the material pushing piece, the material pushing piece pushes the punch hole waste to the waste discharge channel;

[0014] A power mechanism is used to drive the inner lining rod to move along the axial direction and rotate around the axial direction; and

[0015] A control module is used to control the power mechanism to drive the inner lining rod to rotate to the punch head after the punch head passes through the material pushing piece, and then rotate the inner lining rod; and when the double-sided punching is performed, the power mechanism is controlled to drive the inner lining rod to rotate to the punch head aligned with the through hole.

[0016] Further, the control module controls the power mechanism to drive the inner lining rod to rotate, and synchronously controls the power mechanism to drive the inner lining rod to move along the axial direction, so that the punch head smoothly slides in the spiral groove.

[0017] Further, the material pushing piece is attached to the bottom wall of the spiral groove, and when the punch hole waste side of the punch head abuts against the material pushing piece, the head end of the punch head does not contact the material pushing piece, and the punch hole waste does not separate from the punch groove.

[0018] Further, the outer wall of the arc surface of the inner lining rod is provided with a waste discharge opening communicated with the waste discharge channel and a waste discharge groove corresponding to the rebound direction of the material pushing piece, one side of the waste discharge groove is communicated with the side edge of the spiral groove, and the other side is communicated with the waste discharge opening.

[0019] Further, the waste discharge channel is arranged in an inclined manner along the axial direction of the inner lining rod, one end of the waste discharge channel close to the spiral groove is a higher end, and the other end away from the spiral groove is a lower end.

[0020] Further, a wind blowing channel is arranged along the axial direction of the inner lining rod, one end of the wind blowing channel is connected with a wind pipe, and the other end is connected with a wind slot formed on the opening wall of the waste discharge opening;

[0021] One end of the waste discharge channel close to the spiral groove is a closed end, and the closed end is arranged as a backflushing inclined surface, the included angle between the backflushing inclined surface and the lower side cavity wall of the waste discharge channel is an acute angle, and a transition arc surface is arranged at the communication part between the backflushing inclined surface and the lower side cavity wall of the waste discharge channel, and the jet direction of the wind slot is obliquely downward to the backflushing inclined surface.

[0022] Further, the air pipe is provided with a solenoid valve, which is configured to be opened for 3-5 seconds after the inner lining rod rotates to completely pass the punch head over the poking piece.

[0023] Further, the power mechanism comprises:

[0024] A base is slidingly arranged on the machine table.

[0025] A rotary cylinder is fixedly connected to the base, and the inner lining rod is installed at the output end of the rotary cylinder.

[0026] A linear driving member is arranged to drive the base to move along the axial direction of the inner lining rod on the machine table.

[0027] Further, the machine table further comprises:

[0028] A control block is fixedly connected to the base.

[0029] A first position sensor is arranged, and when the base moves to the position corresponding to the control block and the first position sensor, the axis of the material storage groove is coplanar with the axis of the punch head.

[0030] A second position sensor is arranged, and when the base moves to the position corresponding to the control block and the second position sensor, the axis of the through hole is coplanar with the axis of the punch head.

[0031] Further, the base is fixedly connected with an inclined waste discharge hopper, and the machine table is provided with a first material falling port corresponding to the moving track of the lower end of the waste discharge hopper.

[0032] The fixed clamp below the punch head is provided with a guide hole matched with the fixed clamp, and the machine table is provided with a second material falling port below the fixed clamp.

[0033] A collection box is arranged below the machine table.

[0034] In summary, the beneficial technical effects of the present application are:

[0035] 1. By inserting the inner lining rod into the pipe to be machined, the upper arc top of the pipe to be machined can be effectively supported, so that the pipe to be machined will not collapse and deform at this position during the entire punching process, and the punching quality can be effectively ensured.

[0036] 2. By setting a punching groove at the head end of the punching head, the punching waste is clamped in the punching groove, and as the rotation of the lining rod continues, the punching head can pass over the poking piece, while the punching waste cannot pass over the poking piece, but only force the poking piece to deform; when the poking piece deforms to a certain extent, the elastic deformation force acts on the punching waste, so that the punching waste is bounced into the waste discharge channel, thereby realizing automatic discharge of the waste of single-sided punching on the basis of ensuring the punching quality, and ensuring that the punching head is not clamped with waste, which can ensure the punching quality of the next punching;

[0037] 3. Since the through hole and the storage groove are axially offset, the through hole does not reduce the supporting effect of the storage groove, which can ensure the long-term effective use of the lining rod and reduce the maintenance and replacement frequency;

[0038] 4. By setting the inclined arrangement of the waste discharge channel, and setting the air slit on the wall of the waste discharge port, the high-speed airflow sprayed by the air slit impacts on the backflushing slope, which can loosen the punching waste that may be clamped at the waste discharge port, so that it falls accurately into the waste discharge channel; immediately, the airflow turns and flows along the inclined direction of the waste discharge channel under the guidance of the backflushing slope and the transition slope, so that the discharge speed of the punching waste in the waste discharge channel can be accelerated, and the probability of the punching waste being stuck in the waste discharge channel can be reduced as much as possible. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0040] Figure 2 is a schematic diagram of the structure of the lining rod of the embodiment of the present application;

[0041] Figure 3 is a schematic diagram of the structure of the embodiment of the present application when single-sided punching is performed;

[0042] Figure 4 is a schematic diagram of the cross-sectional structure of the embodiment of the present application when single-sided punching is performed;

[0043] Figure 5 is a schematic diagram of the structure of the embodiment of the present application when double-sided punching is performed;

[0044] Figure 6 is a schematic diagram of the cross-sectional structure of the embodiment of the present application, mainly used to show the air blowing channel and the air slit;

[0045] Figure 7 is a position relationship diagram of the embodiment of the present application, mainly used to show the position relationship between the poking piece, the punching head and the clamped punching waste in the punching groove when the punching head is about to contact the poking piece.

[0046] BRIEF DESCRIPTION OF DRAWINGS:

[0047] 1, machine table; 11, fixed clamp; 111, guide hole;

[0048] 2, punching head; 21, slot;

[0049] 3, inner lining rod; 31, storage groove; 32, through hole; 33, spiral groove; 34, waste discharge channel;

[0050] 4, pushing piece;

[0051] 51, waste discharge port; 52, waste discharge groove;

[0052] 61, air blowing channel; 62, air pipe; 63, air gap; 64, backflushing inclined surface; 65, transition curved surface; 66, electromagnetic valve;

[0053] 71, base; 72, rotary cylinder; 73, linear driving piece; 74, slide rail; 75, control block; 76, first arrival sensor; 77, second arrival sensor;

[0054] 81, waste discharge hopper; 82, first material falling port; 83, second material falling port; 84, collection box;

[0055] 9, pipe to be processed; 91, punching waste material. DETAILED DESCRIPTION

[0056] The technical solutions of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0057] The present application discloses a handcart handle punching device. Referring to Figures 1-7 which comprises a machine table 1, a punching mechanism and a fixed clamp 11, the punching mechanism comprises a punching head 2 and a driving assembly, the punching head 2 is provided with a slot 21 with a depth smaller than the wall thickness of a pipe to be processed 9 at the head end, the slot 21 has an opening end with a larger diameter than a closed end, and the punching head 2 is detachably installed on the output end of the driving assembly to adapt to different punching requirements. Wherein, the fixed clamp 11, the driving assembly and the installation mode of the punching head 2 are all prior art, and those skilled in the art can realize them without further description.

[0058] Referring to Figure 1 and Figure 2 , the machine table 1 is provided with:

[0059] The inner lining rod 3 cooperates with the fixed clamp to position the pipe to be processed 9. Specifically, the inner lining rod 3 is inserted into the pipe to be processed 9 in a gap fit, and at least the top arc surface of the inner lining rod 3 is attached to the top inner arc wall of the pipe to be processed 9.

[0060] The storage groove 31 is provided on the arc outer wall of the inner lining rod 3 and is inserted into the punch head 2 in a fit, and the groove depth of the storage groove 31 is greater than the wall thickness of the pipe to be processed 9.

[0061] The counter-passage hole 32 is provided on the arc outer wall of the inner lining rod 3 and is radially penetrated along the inner lining rod 3, the central axis of the counter-passage hole 32 is orthogonal to the central axis of the storage groove 31, and the counter-passage hole 32 is dislocated from the storage groove 31 in the axial direction of the inner lining rod 3, and the hole diameter of the counter-passage hole 32 is greater than the outer diameter of the punch head 2.

[0062] The spiral groove 33 is provided on the arc outer wall of the inner lining rod 3 and is in communication with the storage groove 31 at one end and the counter-passage hole 32 at the other end, and the groove depth of the spiral groove 33 gradually increases from the storage groove 31 to the counter-passage hole 32.

[0063] The waste discharge channel 34 is provided in the axial direction of the inner lining rod 3 and is in communication with the spiral groove 33 at one end and penetrates the end surface of the inner lining rod 3 at the other end.

[0064] The material pushing piece 4 is provided on the groove wall of the spiral groove 33 away from the waste discharge channel 34, and is used to realize that when the inner lining rod 3 is rotated to the side of the punch hole waste 91 abutting against the material pushing piece 4, the material pushing piece 4 pushes the punch hole waste 91 to the waste discharge channel 34; specifically, the increase range of the groove depth of the spiral groove 33 from the storage groove 31 to the material pushing piece 4 is smaller than the increase range of the groove depth of the spiral groove 33 from the material pushing piece 4 to the counter-passage hole 32. The material pushing piece 4 can be a spring leaf bent and installed on the groove wall of the spiral groove 33, at least one end of the spring leaf is a fixed end, and the convex part of the spring leaf invades the spiral groove 33. When the inner lining rod 3 is rotated to the punch head 2 and is about to contact the material pushing piece 4, the horizontal height of the bottom end of the punch head 2 is just greater than the horizontal height of the material pushing piece 4 at this time, that is, the bottom end of the punch head 2 can pass above the material pushing piece 4 when the inner lining rod 3 continues to rotate; at this time, the horizontal height of the lower end surface of the punch hole waste 91 clamped in the punch groove 21 is lower than the horizontal height of the material pushing piece 4 at this time, and the distance between the bottom end of the punch head 2 and the groove bottom wall of the spiral groove 33 is smaller than the thickness of the punch hole waste 91, that is, the punch hole waste 91 clamped in the punch groove 21 cannot pass the material pushing piece 4 when the inner lining rod 3 continues to rotate, but only can push the material pushing piece 4 to deform, and is released by the elastic deformation force of the material pushing piece 4 and is limited between the bottom end of the punch head 2 and the groove bottom wall of the spiral groove 33, as shown in FIG. 5 (the dotted line in the figure is the bottom end plane of the punch head 2). Figure 7

[0065] The power mechanism is used to drive the inner lining rod 3 to move in the axial direction and rotate around the axial direction.

[0066] ​The control module controls the power mechanism to drive the inner liner rod 3 to rotate to the initial angle after the punching head 2 passes through the material pushing piece 4 when single-sided punching is performed; and controls the power mechanism to drive the inner liner rod 3 to rotate to the initial angle after the punching head 2 completely passes through the material pushing piece 4 when double-sided punching is performed.

[0067] Wherein, the control module controls the power mechanism to drive the inner liner rod 3 to rotate synchronously controls the power mechanism to drive the inner liner rod 3 to move along the axial direction, so that the punching head 2 smoothly slides in the spiral groove 33. And the material pushing piece 4 is attached to the groove bottom wall of the spiral groove 33, and when the inner liner rod 3 rotates to the side of the punching head 2 on the punching waste 91 abuts against the material pushing piece 4, the head end of the punching head 2 does not contact the material pushing piece 4, and the punching waste 91 does not separate from the punching groove 21.

[0068] Therefore, when the child stroller handle needs to be punched, first, the pipe to be processed 9 is placed on the fixed clamp 11 for positioning and fixing, and then the power mechanism drives the inner liner rod 3 to insert into the pipe to be processed 9, and then the driving assembly drives the punching head 2 to press down and punch on the pipe wall of the pipe to be processed 9. After the punching is completed, the punching waste 91 is clamped in the punching groove 21 of the punching head 2 and partially exposed outside the punching head 2; with the continuous downward movement of the punching head 2, the punching waste 91 clamped in the punching groove 21 is continuously pressed in the storage groove 31 of the inner liner rod 3. Since the inner liner rod 3 effectively supports the upper arc top of the pipe to be processed 9, the pipe to be processed 9 will not be deformed during the entire punching process, which can effectively ensure the punching quality, such as Figure 4 as shown.

[0069] Then, the control module controls the power mechanism to work, so that the inner lining rod 3 moves along its own axial direction while rotating, so that the punching head 2 slides in the spiral groove 33 relative to the inner lining rod 3, at this time the punching waste 91 is still clamped in the punching groove 21 and slides in the spiral groove 33 at the same time; when the inner lining rod 3 rotates to the punching head 2 contacts the material pushing piece 4, with the continuous rotation of the inner lining rod 3, due to the continuous increase of the depth of the spiral groove 33, the bottom end of the punching head 2 is located on the top upper end surface of the material pushing piece 4, and can pass above the material pushing piece 4, but the part of the punching waste 91 clamped in the punching groove 21 and exposed outside the punching groove 21 is lower than the top upper end surface of the material pushing piece 4, and cannot pass the material pushing piece 4, but can only force the material pushing piece 4 to deform, the elastic deformation force of the material pushing piece 4 is applied to the punching waste 91, so that the punching waste 91 is loosened in the punching groove, at this time the distance between the punching head 2 and the bottom wall of the spiral groove 33 is less than the thickness of the punching waste 91, and the punching waste 91 is still limited between the bottom end of the punching head 2 and the bottom wall of the spiral groove 33; with the continuous rotation of the inner lining rod 3, the depth of the spiral groove 33 increases, and the distance between the bottom end of the punching head 2 and the bottom wall of the spiral groove 33 increases, until the distance increases to be greater than the thickness of the punching waste 91, at this time the deformation of the material pushing piece 4 also reaches the maximum, and the deformation force of the material pushing piece 4 drives the punching waste 91 to pop out from the gap between them and enter the waste discharge channel 34, so that the automatic unloading of the waste of one-side punching can be realized on the basis of ensuring the punching quality, and it can be ensured that the punching head 2 is not clamped with waste, and the punching quality of the next punching can be ensured.

[0070] If double-side punching is needed, the power mechanism continues to drive the inner lining rod 3 to rotate and move axially, so that the through hole 32 on the inner lining rod 3 is aligned with the punching head 2, as shown in Figure 5 , the driving assembly controls the punching head 2 to continue to move downward, so that the second punching of the pipe to be processed 9 can be realized, and due to the supporting effect of the fixed clamp 11, the second punching will not cause the pipe wall to collapse and deform, and the punching waste 91 is directly discharged out of the pipe to be processed 9, without the need to shake off the waste after the punching process is completed. Moreover, since the through hole 32 and the material storage groove 31 are axially offset, the through hole 32 will not reduce the supporting effect of the material storage groove 31, so that the long-term effective use of the inner lining rod 3 can be ensured, and the maintenance and replacement frequency is reduced. Thus, the process connection between single punching and double punching can be more closely connected, and the two punching modes can be freely switched without the need to change the tooling, and the economic benefit is more significant.

[0071] In addition, referring to Figure 2 and Figure 6, the inner lining rod 3 arc outer wall is provided with a waste discharge port 51 and a waste discharge groove 52 corresponding to the rebound direction of the poking member 4, which are communicated with the waste discharge channel 34, one side of the waste discharge groove 52 is communicated with the side of the spiral groove 33, and the other side is communicated with the waste discharge port 51, and the groove depth of the waste discharge groove 52 gradually increases from the spiral groove 33 to the waste discharge port 51. The waste discharge channel 34 is inclined in the axial direction of the inner lining rod 3, and one end of the waste discharge channel 34 close to the spiral groove 33 is the higher end, and the other end away from the spiral groove 33 is the lower end.

[0072] Therefore, with the guiding effect of the waste discharge groove 52, the punched waste 91 ejected by the poking member 4 can be stably dropped into the waste discharge port 51 and into the waste discharge channel 34, which can effectively avoid the jamming of the punched waste 91. And with the inclined arrangement of the waste discharge channel 34, when the inner lining rod 3 reciprocates during the punching operation, the punched waste 91 entering the waste discharge channel 34 can finally be discharged from the opening of the waste discharge channel 34.

[0073] And, in order to further improve the discharge effect of the punched waste 91 in the waste discharge channel 34, referring to Figure 2 and Figure 6 , the wind blowing channel 61 is provided on the inner lining rod 3 along the axial direction, one end of the wind blowing channel 61 is connected with the air pipe 62, and the other end is connected with the air slit 63 provided on the wall of the waste discharge port 51; one end of the waste discharge channel 34 close to the spiral groove 33 is a closed end and is provided as a backflushing slope 64, the included angle between the backflushing slope 64 and the lower cavity wall of the waste discharge channel 34 is an acute angle, and the communication part between the two is provided with a transition arc surface 65, and the jet direction of the air slit 63 is obliquely downward to the backflushing slope 64.

[0074] More importantly, the air pipe 62 is communicated with the external high-pressure gas source and is provided with an electromagnetic valve 66, the electromagnetic valve 66 is configured to be opened for 3-5s after the inner lining rod 3 rotates to the punching head 2 completely across the poking member 4, and the electromagnetic valve 66 can be normally open or pulse open-close within the 3-5s.

[0075] Therefore, when the inner lining rod 3 rotates to the punching head 2 across the poking member 4, first, the punched waste 91 is ejected into the waste discharge groove 52 by the poking member 4 and falls into the waste discharge channel 34, and then the electromagnetic valve 66 is triggered to open, the external high-pressure gas source enters the wind blowing channel 61 and is ejected through the air slit 63. The high-speed airflow ejected by the air slit 63 impacts on the backflushing slope 64, which can loosen the punched waste 91 that may be jammed at the waste discharge port 51, so that it falls accurately into the waste discharge channel 34; immediately, the airflow turns and flows along the inclined direction of the waste discharge channel 34 under the guidance of the backflushing slope 64 and the transition slope, which can speed up the discharge speed of the punched waste 91 in the waste discharge channel 34 and reduce the probability of the jamming of the punched waste 91 in the waste discharge channel 34 as much as possible.

[0076] Specifically, the punching waste 91 is generated after the punching head 2 penetrates the upper end wall of the pipe 9 to be processed, and is temporarily stored in the bottom end groove 21 of the punching head 2; when the inner liner rod 3 rotates to the position above the poking piece 4, the punching waste 91 is first pressed against the poking piece 4 to deform the poking piece 4, and then is ejected by the deformation force of the poking piece 4, and the punching waste 91 is ejected from the groove 21 and then falls into the waste discharge channel 34 through the waste discharge port 51, thereby completing the process of generating and discharging the punching waste 91. In this process, no external power source is needed, and the inner liner rod 3 can be automatically discharged when it is controlled to rotate, and the discharging process is smooth and efficient.

[0077] In addition, referring to Figure 1 and Figure 3 , the aforementioned power mechanism comprises:

[0078] a base 71 is slidingly arranged on the machine table 1, and at least one sliding rail 74 is fixedly arranged on the machine table 1 in the axial direction of the inner liner rod 3, and the base 71 is slidingly arranged on the sliding rail 74;

[0079] a rotary cylinder 72 is fixedly arranged on the base 71, and the inner liner rod 3 is installed on the output end of the rotary cylinder 72, and the rotary cylinder 72 has at least two rotation angles, and when the output end is rotated to a first angle, it corresponds to a single-sided punching mode, and at this time, when the inner liner rod 3 is rotated to the first angle, the punching head 2 passes over the poking piece 4; when the output end is rotated to a second angle, it corresponds to a double-sided punching mode, and at this time, when the inner liner rod 3 is rotated to the second angle, the punching head 2 is aligned with the through hole 32;

[0080] a linear driving piece 73 is used to drive the base 71 to move on the machine table 1 in the axial direction of the inner liner rod 3, and the linear driving piece 73 can be a linear motor, an electric push rod, a ball screw, a motor screw, etc., which is not limited here.

[0081] a control block 75 is fixedly arranged on the base 71;

[0082] a first position sensor 76 is arranged, and when the base 71 moves to the position where the control block 75 corresponds to the first position sensor 76, the axis of the storage groove 31 is coplanar with the axis of the punching head 2;

[0083] a second position sensor 77 is arranged, and when the base 71 moves to the position where the control block 75 corresponds to the second position sensor 77, the axis of the through hole 32 is coplanar with the axis of the punching head 2; the first position sensor 76 and the second position sensor 77 can be infrared sensors or position switches.

[0084] Thus, by driving the base 71 to move through the linear driving member 73, the rotary cylinder 72 on the base 71 can drive the inner liner rod 3 to move axially, and by using the first and second position sensors 76 and 77 in cooperation with the control block 75, the storage groove 31 and the through hole 32 can be accurately positioned with the punching head 2, so as to ensure the punching accuracy; and when the rotary cylinder 72 works, the inner liner rod 3 can rotate at a fixed angle, so as to facilitate flexible switching between the single-side punching mode and the double-side punching mode.

[0085] Further, the base 71 is fixedly connected with a waste discharge hopper 81 arranged obliquely, and the machine table 1 is provided with a first material falling port 82 corresponding to the lower end moving track of the waste discharge hopper 81;

[0086] The fixed clamp 11 below the punching head 2 is provided with a guide hole 111 adapted to be inserted with the fixed clamp 11, and the machine table 1 is provided with a second material falling port 83 below the fixed clamp 11;

[0087] The machine table 1 is provided with a collection box 84 covering the first material falling port 82 and the second material falling port 83.

[0088] Thus, the punching waste 91 entering the waste discharge channel 34 can be guided by the waste discharge hopper 81 and fall into the collection box 84 through the first material falling port 82; and the punching waste 91 punched for the second time in the double-side punching mode can pass through the guide hole 111 on the corresponding fixed clamp 11 and fall into the collection box 84 through the second material falling port 83, so as to facilitate the collection of the punching waste 91.

[0089] Unless otherwise defined, technical terms or scientific terms used in the present application shall have the common meaning understood by one of ordinary skill in the art to which the present application pertains. The terms "first", "second", "third", and the like used in the specification and claims of the present application do not denote any order, quantity, or importance, but are used to distinguish different components. The terms "one" or "a" or the like do not denote a quantity limitation, but mean that at least one exists. The terms "include" or "contain" or the like mean that the elements or objects appearing before the "include" or "contain" or the like encompass the elements or objects listed after the "include" or "contain" or the like and their equivalents, and do not exclude other elements or objects. The terms "upper", "lower", "left", "right", and the like are used to represent relative positional relationships, and when the absolute positions of the described objects change, the relative positional relationships may also change accordingly.

[0090] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, and therefore: any equivalent changes made on the structure, shape, and principle of the present application shall be encompassed within the protection scope of the present application.

Claims

1. A trolley handle punching device, comprising a machine platform, a punching mechanism and a fixing fixture, characterized in that: The punching mechanism includes a punching head and a driving assembly. The punching head end is provided with a punching groove whose depth is less than the wall thickness of the pipe to be processed. The machine is provided with: A lining rod, cooperating with the fixing fixture to position the pipe to be processed; A material storage trough is provided on the outer wall of the arc surface of the liner rod and is plugged and adapted to the punching head; A through hole is provided in the outer wall of the arc surface of the lining rod along the radial direction of the lining rod, wherein the central axis of the through hole is orthogonal to the central axis of the material storage groove, and the through hole and the material storage groove are staggered in the axial direction of the lining rod; A spiral groove is formed on the outer wall of the arc surface of the liner rod and is connected to the material storage groove at one end and the through hole at the other end. The depth of the spiral groove gradually increases from the material storage groove to the through hole. A waste discharge channel is opened along the axial direction of the lining rod and communicates with the spiral groove; A material-diverting member is provided on a groove wall of the spiral groove facing away from the waste discharge channel, and is used to realize that when the liner rod rotates to the punching head and the side of the punched waste abuts against the material-diverting member, the material-diverting member will bounce the punched waste toward the waste discharge channel; A power mechanism, used for driving the liner rod to move in the axial direction and rotate around the axial direction; as well as The control module is used to control the power mechanism to drive the lining rod to rotate until the punching head passes the material-selecting piece and then rotates the lining rod when punching on one side; and to control the power mechanism to drive the lining rod to rotate until the punching head is aligned with the through hole when punching on both sides.

2. A trolley handle punching device according to claim 1, characterized in that: The control module controls the power mechanism to drive the lining rod to rotate and synchronously controls the power mechanism to drive the lining rod to move along its axial direction, so that the punching head slides smoothly in the spiral groove.

3. A trolley handle punching device according to claim 1, characterized in that: The material-picking piece is fitted to the bottom wall of the spiral groove, and when the lining rod rotates to the side of the punching waste on the punching head and abuts against the material-picking piece, the head end of the punching head does not contact the material-picking piece, and the punching waste does not leave the punching groove.

4. A trolley handle punching device according to claim 1, characterized in that: The arc-shaped outer wall of the lining rod is provided with a waste discharge port connected to the waste discharge channel and a waste discharge groove corresponding to the rebound direction of the material-discharging member. One side of the waste discharge groove is connected to the side of the spiral groove, and the other side is connected to the waste discharge port.

5. A trolley handle punching device according to claim 4, characterized in that: The waste discharge channel is arranged to be inclined in the axial direction of the liner rod, and the end of the waste discharge channel close to the spiral groove is the higher end, and the end away from the spiral groove is the lower end.

6. A trolley handle punching device according to claim 4, characterized in that: The lining rod is provided with an air blowing channel along its axial direction, one end of the air blowing channel is connected to the air duct, and the other end is connected to the air slit opened on the wall of the waste outlet; The end of the waste discharge channel close to the spiral groove is a closed end and the closed end is set as a recoil slope. The angle between the recoil slope and the lower side cavity wall of the waste discharge channel is an acute angle, and the connecting part between the two is provided with a transition arc surface. The jet direction of the wind slot points obliquely downward to the recoil slope.

7. A trolley handle punching device according to claim 6, characterized in that: The air duct is provided with a solenoid valve, which is configured to open for 3 to 5 seconds after the lining rod rotates until the punching head completely passes over the material-digging piece.

8. The trolley handle punching device according to claim 1, characterized in that: The power mechanism comprises: A base, slidably arranged on the machine platform; A rotary cylinder is fixed to the base, and the liner rod is installed at the output end of the rotary cylinder; and The linear drive component is used to drive the base to move axially along the lining rod on the machine platform.

9. A trolley handle punching device according to claim 8, characterized in that: Also includes: A control block is fixedly connected to the base; a first in-position sensor, wherein when the base moves to the point where the control block corresponds to the first in-position sensor, the central axis of the material storage trough is coplanar with the central axis of the punching head; as well as The second in-position sensor is configured such that when the base moves to a position where the control block corresponds to the second in-position sensor, the central axis of the through hole is coplanar with the central axis of the punching head.

10. The trolley handle punching device according to claim 8, characterized in that: The base is fixedly connected with an inclined waste discharge bucket, and the machine is provided with a first blanking opening corresponding to the movement track of the lower end of the waste discharge bucket; A guide hole adapted for plugging with the punching head is formed through the fixing fixture located below the punching head, and a second blanking opening is formed through the fixing fixture below the punching head. A collection box is provided under the machine.

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