Portable punch

Abstract

The utility model discloses a portable puncher, including the casing and with the mould support of casing link, be provided with the clamping groove for clamping on the section bar on the mould support, the transmission assembly is provided with in the casing, and the output of transmission assembly is linked with the punch head, and the input of transmission assembly is linked with the drive mechanism, the punch hole that still is provided with with punch head cooperation on the mould support and the guide hole of punch head's guiding effect, the guide hole with punch hole intercommunication, and drive mechanism moves punch head through transmission assembly, and then carries out the punching to section bar. The utility model discloses simple structure, and the design is ingenious, can directly punch on the installed outer frame section bar, to solve the problem of outer frame section bar in prior art, the utility model can punch the thin plate in addition to can punch the door and window outer frame, has the advantages such as small size, light in weight, convenient to carry, easy operation, time -saving and labor -saving.

Description

Technical Field

[0001] This utility model relates to the field of punching machines, and in particular to a portable punching machine. Background Technology

[0002] Doors and windows primarily serve the functions of sheltering from wind and rain, providing light, and ventilation in buildings. However, in strong winds and heavy rain, large amounts of rainwater are blown into the gaps between the door or window sash and the outer frame, eventually seeping into the interior and damaging walls or floors, causing significant inconvenience. To address this problem, drainage holes are typically installed in the outer frame of doors and windows to allow rainwater to drain, reducing water accumulation and preventing leaks.

[0003] Chinese utility model CN223056518U discloses a punching machine for drainage holes in doors and windows, including a base with a top frame on top. The four corners of the bottom of the top frame are fixedly connected to the base via support columns. When punching holes in door and window profiles is required, the machine uses a feeding device to feed the profiles. When the profile is positioned below the punching rod, a second hydraulic rod moves a first clamping plate and a second clamping plate towards the profile. The first clamping plate directly abuts against the surface of the profile, while the second clamping plate, supported by a support frame, holds the profile in place. This allows the first hydraulic rod to move the punching rod downwards, punching the holes in the profile. This punching machine is hydraulically driven, requires an external hydraulic station, is bulky, inconvenient to carry, and expensive. In addition, since the punching machine first drills holes in the profile and then assembles the outer frame, the drainage holes are often overlooked during the installation of the outer frame, resulting in the upper and lower directions of the outer frame being installed in reverse, which leads to disassembly and reassembly, which is time-consuming and laborious. Summary of the Invention

[0004] This utility model provides a portable punching machine that can directly punch holes in an installed outer frame profile. It is small in size, lightweight, and easy to carry. The specific technical solution is as follows: A portable punching machine is characterized by comprising a housing and a mold frame connected to the housing. The mold frame is provided with a slot for engaging with a profile. A transmission component is provided inside the housing. The output end of the transmission component is connected to a punching head, and the input end of the transmission component is connected to a drive mechanism. The mold frame is also provided with a punching hole that cooperates with the punching head and a guide hole that guides the punching head. The guide hole is connected to the punching hole. The drive mechanism drives the punching head to move via the transmission component, thereby punching holes in the profile.

[0005] The transmission assembly includes a driving spiral bevel gear, a driven spiral bevel gear, a sleeve, and a screw. The sleeve is horizontally positioned within the housing. The driven spiral bevel gear is sleeved on the sleeve and fixedly connected to it. The inner wall of the sleeve has an internal thread that mates with the external thread of the screw. The screw passes through the sleeve and is threadedly connected to it. A punch head is mounted on one end of the screw and placed in a guide hole. A hexagonal prism is located at the end of the screw away from the punch head. A hexagonal hole that mates with the hexagonal prism of the screw is provided on a bearing baffle on one side of the housing. The hexagonal prism on the screw extends into the hexagonal hole of the bearing baffle, allowing the screw to move linearly but not rotate. One end of the driving spiral bevel gear meshes with the driven spiral bevel gear, and the other end extends outside the housing and is connected to the drive mechanism. The drive mechanism drives the driven spiral bevel gear to rotate via the driving spiral bevel gear, causing the screw to move linearly within the sleeve, thereby moving the punch head to achieve the punching of the profile.

[0006] The sleeve has bearing positions at both ends for mounting bearings, and the housing has mounting holes at both ends that are compatible with the bearings on the sleeve. The sleeve is supported in the housing by the bearings at both ends, with one bearing abutting against the bearing baffle and the other bearing abutting against the mold frame.

[0007] The end of the screw away from the hexagonal prism is provided with a T-shaped head, and the stamping head is provided with a groove that matches the T-shaped head of the screw. The T-shaped head is stuck in the groove of the stamping head, so that the stamping head and the screw are connected together.

[0008] The outer wall of the sleeve is provided with a positioning key, and the inner wall of the passive spiral bevel gear is provided with a positioning groove that matches the positioning key of the sleeve. The positioning key is inserted into the positioning groove of the passive spiral bevel gear. The passive spiral bevel gear is also provided with a set screw hole. The set screw passes through the set screw hole on the passive spiral bevel gear and presses against the sleeve, so that the passive spiral bevel gear is fixedly connected to the sleeve.

[0009] The active spiral bevel gear includes a shaft and a gear body connected to the shaft. The gear body meshes with the external teeth of the passive spiral bevel gear. A hexagonal prism is provided at the end of the shaft away from the gear body. During assembly, the hexagonal prism of the active spiral bevel gear is inserted into the drive mechanism to achieve a fixed connection between the active spiral bevel gear and the drive mechanism.

[0010] The top of the housing has a through hole for the driving spiral bevel gear to pass through. The lower end of the driving spiral bevel gear passes through the through hole at the top of the housing and meshes with the driven spiral bevel gear. Inside the pressure cover, there are an upper bearing, a washer, a lower bearing, and a large retaining ring arranged in sequence. The upper bearing abuts against an annular limiting protrusion on the inner wall of one end of the pressure cover. A retaining ring groove is provided at the end of the pressure cover away from the annular limiting protrusion. The large retaining ring is located in the retaining ring groove and abuts against the lower bearing. The axial displacement of the bearing can be restricted by the pressure cover and the large retaining ring. After the upper end of the driving spiral bevel gear passes through the pressure cover and its internal components, it is fixed by a small retaining ring. The small retaining ring is engaged in the annular groove of the driving spiral bevel gear to restrict the axial movement of the driving spiral bevel gear. The pressure cover is fixed to the housing by screws. The washer can reduce the friction when the driving spiral bevel gear rotates.

[0011] The mold holder has a protrusion on the inner side of the slot, which cooperates with the groove on the profile to make the mold holder more securely attached to the profile.

[0012] The drive mechanism is an electric drill or a wrench, and a handle is provided on one side of the top of the housing for easy operation.

[0013] The housing includes a frame and two side plates, which are located on the left and right sides of the frame and are connected and fixed to the frame by screws.

[0014] This utility model has a simple structure and ingenious design. It can directly drill holes in the installed outer frame profile to solve the problem of the outer frame profile being installed backwards in the prior art. In addition to drilling holes in the outer frame of doors and windows, this utility model can also drill holes in thin plates. It has the advantages of small size, light weight, easy to carry, simple operation, and saving time and effort. Attached Figure Description

[0015] Figure 1 This is a perspective view of the present invention; Figure 2 This is the front view of this utility model; Figure 3 This is a side view of the present invention; Figure 4 yes Figure 3 A cross-sectional view of surface AA; Figure 5 This is an exploded structural diagram of the present invention; Figure 6 This utility model relates to a three-dimensional sleeve. Figure 1 ; Figure 7 This utility model relates to a three-dimensional sleeve. Figure 2 ; Figure 8 This is a schematic diagram of the passive spiral bevel gear of this utility model; Figure 9This is a schematic diagram of the screw structure of this utility model; Figure 10 This is a schematic diagram of the connection structure between the screw and the stamping head of this utility model; Figure 11 This is a schematic diagram of the structure of the stamping head of this utility model; Figure 12 This is a schematic diagram of the structure of the active spiral bevel gear of this utility model; Figure 13 This is a schematic diagram of the mold frame of this utility model; Figure 14 This is a schematic diagram of the structure of the pressure cap of this utility model; Figure 15 This is a schematic diagram of the structure of this utility model during drilling; Figure 16 This is a schematic diagram of the structure of this utility model after drilling. Detailed Implementation

[0016] To better understand the purpose, function, and specific design of this utility model, the portable punching machine of this utility model will be described in further detail below with reference to the accompanying drawings.

[0017] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 13 As shown, the portable punching machine of this utility model includes a housing 1 and a mold frame 3 connected to the housing 1. The housing 1 includes a frame 11 and two side plates 12, which are located on the left and right sides of the frame 11 and are fixed to the frame 11 by screws. The mold frame 3 is fixed to the housing 1 by screws and has a slot 31 for engaging with the profile. A transmission assembly 6 is provided inside the housing 1. The output end of the transmission assembly 6 is connected to the punching head 7, and the input end of the transmission assembly 6 is connected to the drive mechanism. The mold frame 3 also has a punching hole 32 that cooperates with the punching head 7 and a guide hole 34 that guides the punching head 7. The guide hole 34 communicates with the punching hole 32. The drive mechanism drives the punching head 7 to move via the transmission assembly 6, thereby punching holes in the profile.

[0018] Specifically, such as Figures 4-13As shown, the transmission assembly 6 includes a driving spiral bevel gear 61, a driven spiral bevel gear 62, a sleeve 63, and a screw 64. The sleeve 63 is horizontally disposed within the housing 1. The driven spiral bevel gear 62 is sleeved on the sleeve 63 and fixedly connected to it. The inner wall of the sleeve 63 has an internal thread 631 that mates with the external thread 641 of the screw 64. The screw 64 passes through the sleeve 63 and is threadedly connected to it. A punch head 7 is mounted on one end of the screw 64 and placed within a guide hole 34. The guide hole 34 allows the punch head 7 to move linearly without deviation. A hexagonal prism 643 is provided at the end of the screw 64 away from the punch head 7. A hexagonal hole 51 is provided on the bearing baffle 5 on one side of the housing 1, which mates with the hexagonal prism 643 of the screw 64. The hexagonal prism 643 on the screw 64 extends into the hexagonal hole 51 of the bearing baffle 5, allowing the screw 64 to move only linearly and preventing rotation. One end of the active spiral bevel gear 61 meshes with the passive spiral bevel gear 62, and the other end of the active spiral bevel gear 61 extends to the outside of the housing 1 and is connected to the drive mechanism. The drive mechanism drives the passive spiral bevel gear 62 to rotate through the active spiral bevel gear 61, so that the screw 64 moves linearly in the sleeve 63, thereby driving the punch head 7 to move to realize the punching of the profile.

[0019] The sleeve 63 has bearing seats 633 and 634 at both ends for mounting bearings 8. The housing 1 has mounting holes 111 at both ends that are compatible with the bearings 8 on the sleeve 63. The sleeve 63 is supported in the housing 1 by the bearings 8 at both ends. One bearing 8 abuts against the bearing baffle 5, and the other bearing 8 abuts against the mold frame 3. The bearing baffle 5 is connected and fixed to the housing 1 by screws.

[0020] like Figure 4 , Figure 5 , Figure 9 , Figure 10 , Figure 11 As shown, a T-shaped head 642 is provided at the end of the screw 64 away from the hexagonal prism 643, and a slot 71 is provided on the stamping head 7 to cooperate with the T-shaped head 642 of the screw 64. The T-shaped head 642 is stuck in the slot 71 of the stamping head 7, so that the stamping head 7 and the screw 64 are connected together.

[0021] like Figures 4-8 As shown, a positioning key 632 is provided on the outer wall of the sleeve 63, and a positioning groove 621 is provided on the inner wall of the driven spiral bevel gear 62, which mates with the positioning key 632 of the sleeve 63. The positioning key 632 is inserted into the positioning groove 621 of the driven spiral bevel gear 62. The driven spiral bevel gear 62 is also provided with a set screw hole 622. The set screw passes through the set screw hole 622 on the driven spiral bevel gear 62 and presses against the sleeve 63, so that the driven spiral bevel gear 62 and the sleeve 63 are fixedly connected.

[0022] like Figure 4 , Figure 5and Figure 12 As shown, the active spiral bevel gear 61 includes a shaft 611 and a gear body 612 connected to the shaft 611. The gear body 612 meshes with the external teeth of the passive spiral bevel gear 62. A hexagonal prism 613 is provided at the end of the shaft 611 away from the gear body 612. During assembly, the hexagonal prism 613 of the active spiral bevel gear 61 is inserted into the drive mechanism to achieve a fixed connection between the active spiral bevel gear 61 and the drive mechanism.

[0023] like Figure 4 , Figure 5 , Figure 12 and Figure 14 As shown, the top of the housing 1 has a through hole for the active spiral bevel gear 61 to pass through. The lower end of the active spiral bevel gear 61 passes through the through hole at the top of the housing 1 and meshes with the passive spiral bevel gear 62. Inside the pressure cover 2, an upper bearing 23, a washer 24, a lower bearing 25, and a large retaining ring 26 are arranged in sequence. The upper bearing 23 abuts against an annular limiting protrusion 21 on the inner wall of one end of the pressure cover 2. A retaining ring groove 22 is provided at the end of the pressure cover 2 away from the annular limiting protrusion 21. The large retaining ring 26 is disposed in the retaining ring groove 22 and abuts against the lower bearing 25. The axial displacement of the bearing can be restricted by the pressure cover 2 and the large retaining ring 26. After the upper end of the active spiral bevel gear 61 passes through the pressure cover 2 and its internal components, it is fixed by a small retaining spring 615. The small retaining spring 615 is engaged in the annular groove 614 of the active spiral bevel gear 61 to restrict the axial movement of the active spiral bevel gear 61. The pressure cover 2 is fixed to the housing by screws, and the washer 24 can reduce the friction when the active spiral bevel gear 61 rotates.

[0024] like Figure 1 , Figure 2 , Figure 5 and Figure 15 As shown, the inner side of the slot 31 of the mold frame 3 is provided with a protrusion 33, which cooperates with the groove on the profile to make the mold frame 31 more securely attached to the profile.

[0025] like Figure 1 , Figure 5 , Figure 15 and Figure 16 As shown, the driving mechanism is an electric drill 9, a wrench, or other tool that can drive the active spiral bevel gear 61 to rotate. The driving mechanism of this utility model is preferably an electric drill 9. For ease of operation, a handle 4 is also provided on one side of the top of the housing 1. The handle 4 includes a sleeve 41 and a stud 42 installed in the sleeve 41. A threaded hole 112 that mates with the external thread on the stud 42 is provided on one side of the top of the housing 1. The stud 42 is threadedly connected to the threaded hole 112 on the top of the housing 1 to connect the sleeve 41 and the housing 1 together.

[0026] like Figure 1 , Figure 15 and Figure 16 As shown, when drilling holes in the outer frame of a door or window, taking an electric drill as an example of the drive mechanism: First, the slot 31 on the mold frame 3 is engaged with the outer frame profile, so that the protrusion 33 on the inner side of the slot 31 is engaged into the groove of the outer frame profile. Then, the active spiral bevel gear 61 is inserted into the chuck of the electric drill 9. The operator holds the handle 4 with one hand and the electric drill 9 with the other hand. By turning the key on the electric drill 9, the operator selects the forward, reverse, or off rotation of the chuck. When drilling, the key on the electric drill 9 is turned to forward rotation. The electric drill 9 drives the passive spiral bevel gear 62 to rotate through the active spiral bevel gear 61, so that the screw 64 drives the punch head 7 to move forward, thereby drilling holes in the outer frame profile. The punched waste is discharged through the punch hole 32, completing the drilling. After drilling is completed, turn the key on the electric drill 9 to reverse. The electric drill drives the passive spiral bevel gear 62 to rotate in the opposite direction through the active spiral bevel gear 61, so that the screw 64 drives the punch head 7 to retract into the guide hole 34. Then, turn the key on the electric drill 9 to the off position.

[0027] In addition to drilling holes in door and window frames, this utility model can also drill holes in thin plates.

[0028] In this invention, the punch head and the matching mold frame can be replaced as needed during punching.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A portable punching machine, characterized in that, The device includes a housing and a mold frame connected to the housing. The mold frame is provided with a slot for engaging with the profile. A transmission component is provided inside the housing. The output end of the transmission component is connected to the punching head, and the input end of the transmission component is connected to the drive mechanism. The mold frame is also provided with a punching hole that cooperates with the punching head and a guide hole that guides the punching head. The guide hole is connected to the punching hole. The drive mechanism drives the punching head to move via the transmission component, thereby punching holes in the profile.

2. The portable punching machine according to claim 1, characterized in that, The transmission assembly includes a driving spiral bevel gear, a driven spiral bevel gear, a sleeve, and a screw. The sleeve is horizontally positioned within the housing. The driven spiral bevel gear is sleeved on the sleeve and fixedly connected to it. The inner wall of the sleeve has an internal thread that mates with the external thread of the screw. The screw passes through the sleeve and is threadedly connected to it. A punch head is mounted on one end of the screw and placed in a guide hole. A hexagonal prism is located at the end of the screw away from the punch head. A hexagonal hole that mates with the hexagonal prism of the screw is provided on a bearing baffle on one side of the housing. The hexagonal prism on the screw extends into the hexagonal hole of the bearing baffle, allowing the screw to move linearly but not rotate. One end of the driving spiral bevel gear meshes with the driven spiral bevel gear, and the other end extends outside the housing and is connected to the drive mechanism. The drive mechanism drives the driven spiral bevel gear to rotate via the driving spiral bevel gear, causing the screw to move linearly within the sleeve, thereby moving the punch head to achieve the punching of the profile.

3. The portable punching machine according to claim 2, characterized in that, The sleeve has bearing positions at both ends for mounting bearings, and the housing has mounting holes at both ends that are compatible with the bearings on the sleeve. The sleeve is supported in the housing by the bearings at both ends, with one bearing abutting against the bearing baffle and the other bearing abutting against the mold frame.

4. The portable punching machine according to claim 2, characterized in that, The end of the screw away from the hexagonal prism is provided with a T-shaped head, and the stamping head is provided with a groove that matches the T-shaped head of the screw. The T-shaped head is stuck in the groove of the stamping head, so that the stamping head and the screw are connected together.

5. The portable punching machine according to claim 2, characterized in that, The outer wall of the sleeve is provided with a positioning key, and the inner wall of the passive spiral bevel gear is provided with a positioning groove that matches the positioning key of the sleeve. The positioning key is inserted into the positioning groove of the passive spiral bevel gear. The passive spiral bevel gear is also provided with a set screw hole. The set screw passes through the set screw hole on the passive spiral bevel gear and presses against the sleeve, so that the passive spiral bevel gear is fixedly connected to the sleeve.

6. The portable punching machine according to claim 2, characterized in that, The active spiral bevel gear includes a shaft and a gear body connected to the shaft. The gear body meshes with the external teeth of the passive spiral bevel gear. A hexagonal prism is provided at the end of the shaft away from the gear body. During assembly, the hexagonal prism of the active spiral bevel gear is inserted into the drive mechanism to achieve a fixed connection between the active spiral bevel gear and the drive mechanism.

7. The portable punching machine according to claim 2 or 6, characterized in that, The top of the housing has a through hole for the driving spiral bevel gear to pass through. The lower end of the driving spiral bevel gear passes through the through hole at the top of the housing and meshes with the driven spiral bevel gear. Inside the pressure cover, there are an upper bearing, a washer, a lower bearing, and a large retaining ring arranged in sequence. The upper bearing abuts against an annular limiting protrusion on the inner wall of one end of the pressure cover. A retaining ring groove is provided at the end of the pressure cover away from the annular limiting protrusion. The large retaining ring is located in the retaining ring groove and abuts against the lower bearing. The axial displacement of the bearing can be restricted by the pressure cover and the large retaining ring. After the upper end of the driving spiral bevel gear passes through the pressure cover and its internal components, it is fixed by a small retaining ring. The small retaining ring is engaged in the annular groove of the driving spiral bevel gear to restrict the axial movement of the driving spiral bevel gear. The pressure cover is fixed to the housing by screws. The washer can reduce the friction when the driving spiral bevel gear rotates.

8. The portable punching machine according to claim 1, characterized in that, The mold holder has a protrusion on the inner side of the slot, which cooperates with the groove on the profile to make the mold holder more securely attached to the profile.

9. The portable punching machine according to claim 1, characterized in that, The drive mechanism is an electric drill or a wrench, and a handle is provided on one side of the top of the housing for easy operation.

10. The portable punching machine according to claim 1, characterized in that, The housing includes a frame and two side plates, which are located on the left and right sides of the frame and are connected and fixed to the frame by screws.

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