Luggage pull rod punching equipment

Abstract

The luggage pull rod punching equipment comprises a workbench, a positioning plate is arranged on the workbench, a center rod is installed on the positioning plate, a threaded section is arranged on the side, close to the positioning plate, of the center rod, a polished rod is arranged on the side, away from the positioning plate, of the center rod, and a positioning core is installed on the polished rod in a sliding mode; the shape of the positioning core is matched with that of a through hole in a pull rod, an adjusting sleeve is installed on the threaded section in a threaded mode and connected with a positioning cylinder, a positioning ring groove is formed in the end face, close to the positioning cylinder, of the positioning core, the positioning cylinder and the positioning ring groove are installed in a matched mode, and a punching machine is arranged above the positioning plate. The interior of the pull rod is positioned and supported through the positioning core, it can be ensured that the pull rod is kept at the stable position in the punching process, punching deviation caused by shaking or displacement of the pull rod is reduced, and therefore the punching precision and quality are improved.

Description

Technical Field

[0001] This invention relates to the technical field of luggage handle processing, and in particular to the technical field of luggage handle punching equipment. Background Technology

[0002] As a core component for achieving portability, the structural integrity and assembly precision of the luggage handle directly determine the user experience and lifespan of the luggage. To meet the functional requirements of handle extension adjustment and connector assembly, punching is required at specific locations on the handle tube. The accuracy of the hole position, the flatness of the hole wall, and the structural stability of the tube are key indicators for measuring the quality of punching.

[0003] Currently available bag handle punching equipment is mostly designed for single-specification or fixed-model handles, using a fixed punching mechanism: the punching mold and positioning fixture positions are pre-fixed, and it can only accommodate handles with specific lengths, diameters, and hole position requirements. As bag products become more diversified and personalized, the specifications of handles need to be frequently adjusted according to design requirements. However, existing equipment cannot flexibly adjust the punching position. Every time the handle model is changed, the mold needs to be disassembled and recalibrated, and the fixture reference needs to be adjusted. This not only consumes a lot of time, but is also prone to hole position deviation due to manual calibration errors, reducing production efficiency and product qualification rate.

[0004] Existing equipment can only clamp and fix the pull rod tube through external clamps during the drilling process, lacking a positioning and support structure inside the pull rod. Since most luggage pull rods are hollow tubular profiles, and some thin-walled pull rods have a wall thickness of only 0.8-1.5mm, the instantaneous impact force of the punch on the tube during drilling can easily cause the tube wall to dent, deform, or even crack around the hole and severe burrs. At the same time, the lack of internal support will cause the tube to shift radially under force, resulting in the coaxiality deviation of the hole exceeding the allowable range, which will affect the subsequent assembly accuracy of the pull rod with the handle and base. In severe cases, it can cause quality problems such as the pull rod sticking or loosening during extension and retraction, failing to meet the luggage industry's requirements for product durability and consistency. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art by proposing a punching device for luggage handles, which can solve the above problems.

[0006] To achieve the above objectives, this invention proposes a punching device for luggage pull rods, comprising a workbench, a positioning plate on the workbench, a central rod mounted on the positioning plate, a threaded section on the side of the central rod near the positioning plate, and a smooth rod on the side of the central rod away from the positioning plate. A positioning core is slidably mounted on the smooth rod, the shape of the positioning core matching the through hole inside the pull rod. An adjusting sleeve is threaded onto the threaded section, and the adjusting sleeve is connected to a positioning cylinder. A positioning ring groove is formed on the end face of the positioning core near the positioning cylinder, and the positioning cylinder is matched and installed with the positioning ring groove. A punching machine is located above the positioning plate.

[0007] Preferably, the outer side of the positioning core is provided with a positioning mechanism, the positioning mechanism including a clamping cylinder, the inner side of the clamping cylinder is provided with a positioning groove that matches the pull rod, and the top of the side of the clamping cylinder away from the positioning plate is connected to a top plate, the top plate being provided with a guide groove for the punch of the punching machine to pass through.

[0008] Preferably, the clamping cylinder consists of two symmetrically arranged clamping plates.

[0009] Preferably, the positioning plate has a first slide rail on one side, a first slider is slidably mounted on the first slide rail, the first slider is connected to a base, a punching bracket is mounted on the base, and a punching machine is mounted on the punching bracket. The positioning plate has a second slide rail on the other side, a second slider is slidably mounted on the second slide rail, the second slider is connected to a vertical plate, the vertical plate is fixed to the side of the movable seat, the movable seat is located below the positioning core, and the positioning mechanism is mounted on the movable seat.

[0010] Preferably, the positioning core includes a driving part and a positioning part. The driving part has magnetic attraction parts on its left and right sides that can be magnetically attracted. Electromagnets are embedded on the left and right sides of the positioning groove. The positions of the electromagnets match the magnetic attraction parts. A clearance groove is provided on the top of the positioning part. A slot is provided on the bottom of the end face of the positioning part on the side away from the driving part. The slot is connected to the clearance groove.

[0011] Preferably, the center of the drive unit has a groove that matches the optical rod.

[0012] Preferably, the worktable is provided with a mounting plate on the side away from the positioning plate, a drive screw is mounted on the mounting plate, a movable plate is threaded onto the drive screw, and a fixing block is mounted on the side of the movable plate near the positioning plate, the shape of the fixing block matching the through hole in the pull rod.

[0013] Preferably, the workbench is provided with a discharge trough, which is located between the mounting plate and the positioning plate, and the discharge trough is located on the side closer to the mounting plate.

[0014] The beneficial effects of this invention are as follows: This invention uses a positioning core to provide internal positioning support for the tie rod, ensuring a stable position during drilling and reducing drilling deviations caused by tie rod swaying or displacement, thereby improving drilling accuracy and quality. The drilling machine is movable, and the position of the positioning core can be adjusted by rotating the positioning cylinder to meet drilling requirements at different positions and angles. It is applicable to the processing of tie rods of various shapes and specifications, improving the versatility and flexibility of the equipment. The clamping cylinder adsorbs and moves the positioning core, allowing it to move synchronously with the drilling machine, enabling multi-hole processing in one operation. This avoids the tedious process of repeatedly adjusting and repositioning the tie rod in traditional processing methods, greatly shortening processing time and improving production efficiency. Drilling waste is stored in the slot; when the positioning part moves out of the tie rod, the waste is automatically cleared out, which is very convenient.

[0015] The features and advantages of the present invention will be described in detail through embodiments and in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 is a schematic diagram of the structure of the present invention; Figure 2 is a schematic diagram of the material discharge of the present invention; Figure 3 is a schematic diagram of the positioning core installation of the present invention; Figure 4 is a structural schematic diagram of Example 1; Figure 5 is a schematic diagram of the drive unit installation in Embodiment 1; Figure 6 is a structural schematic diagram of Example 2; Figure 7 is a schematic diagram of the drive unit in Embodiment 2; Figure 8 is a schematic diagram of the positioning core structure of Example 2.

[0017] In the diagram: 1. Workbench; 2. Positioning plate; 3. Center rod; 4. Positioning core; 5. Adjusting sleeve; 6. Punching machine; 7. Clamping cylinder; 8. Drive unit; 9. Positioning unit; 10. Discharge chute; 21. Mounting plate; 22. Drive screw; 23. Moving plate; 24. Fixed insert; 31. Threaded section; 32. Smooth rod; 41. Positioning ring groove; 42. Second slide rail; 43. Second slider; 44. Vertical plate; 45. Moving seat; 51. Positioning cylinder; 61. First slide rail; 62. First slider; 71. Positioning groove; 72. Top plate; 73. Guide groove; 74. Clamping plate; 75. Electromagnet; 81. Magnetic suction unit; 82. Slide groove; 91. Clearance groove; 92. Slotting. Detailed Implementation

[0018] Example 1 See Figure 1 , Figure 2 , Figure 3 and Figure 4The present invention includes a workbench 1, a positioning plate 2 on the workbench 1, a center rod 3 mounted on the positioning plate 2, a threaded section 31 on the side of the center rod 3 near the positioning plate 2, and a smooth rod 32 on the side of the center rod 3 away from the positioning plate 2. A positioning core 4 is slidably mounted on the smooth rod 32, the shape of the positioning core 4 matching the through hole in the pull rod. An adjusting sleeve 5 is threadedly mounted on the threaded section 31, and the adjusting sleeve 5 is connected to a positioning cylinder 51. A positioning ring groove 41 is formed on the end face of the positioning core 4 near the positioning cylinder 51, and the positioning cylinder 51 is matched and installed with the positioning ring groove 41. A punching machine 6 is provided above the positioning plate 2.

[0019] Preferably, the positioning core 4 is provided with a positioning mechanism on its outer side. The positioning mechanism includes a clamping cylinder 7. The inner side of the clamping cylinder 7 is provided with a positioning groove 71 that matches the pull rod. The top of the side of the clamping cylinder 7 away from the positioning plate 2 is connected to a top plate 72. The top plate 72 is provided with a guide groove 73 for the punch of the punching machine 6 to pass through.

[0020] Preferably, the clamping cylinder 7 is composed of two symmetrically arranged clamping plates 74.

[0021] Preferably, one side of the positioning plate 2 is provided with a first slide rail 61, on which a first slider 62 is slidably mounted. The first slider 62 is connected to a base, on which a punching bracket is mounted. The punching bracket is mounted with a punching machine 6. The other side of the positioning plate 2 is provided with a second slide rail 42, on which a second slider 43 is slidably mounted. The second slider 43 is connected to a vertical plate 44, which is fixed to the side of a movable seat 45. The movable seat 45 is located below the positioning core 4, and the positioning mechanism is mounted on the movable seat 45.

[0022] The positions of the first and second sliders are aligned by a laser positioner to ensure that the punch of the punching machine is always aligned with the guide groove.

[0023] Preferably, the positioning core 4 includes a driving part 8 and a positioning part 9. The driving part 8 has magnetic attraction parts 81 on its left and right sides that can be magnetically attracted. Electromagnets 75 are embedded on the left and right sides of the positioning groove 71. The position of the electromagnets 75 matches the magnetic attraction parts 81. The top of the positioning part 9 has a clearance groove 91. The bottom of the end face of the positioning part 9 on the side away from the driving part 8 has a slot 92 that is connected to the clearance groove 91.

[0024] When the electromagnet is energized, it is attracted and fixed to the magnetic part. When the positioning mechanism drives the internal positioning core to move, the position of the guide groove always matches the position of the clearance groove.

[0025] Preferably, the center of the drive unit 8 is provided with a groove 82 that matches the light rod 32.

[0026] Preferably, the workbench 1 is provided with a mounting plate 21 on the side away from the positioning plate 2. A drive screw 22 is mounted on the mounting plate 21. A movable plate 23 is threaded onto the drive screw 22. A fixing block 24 is mounted on the side of the movable plate 23 close to the positioning plate 2. The shape of the fixing block 24 matches the through hole in the pull rod.

[0027] Preferably, the workbench 1 is provided with a discharge trough 10, which is located between the mounting plate 21 and the positioning plate 2, and the discharge trough 10 is located on the side closer to the mounting plate 21.

[0028] In this embodiment, the optical rod 32 is square.

[0029] Example 2 The guide rod 32 in this embodiment is circular; a flat groove is formed on the guide rod 32; a positioning protrusion is set in the sliding groove 82; and a tapered guide head is provided at the end of the guide rod 32.

[0030] Everything else is the same as in Example 1.

[0031] The working process of this invention: During operation, the present invention moves the pull rod to the worktable by means of mechanical gripper or manual handling. The pull rod is inserted between the clamp and the positioning core, with its end abutting against the positioning plate. Then, the fixing block is inserted into the other end of the pull rod by the drive screw to complete the installation of the pull rod. Next, the punching machine is driven to the appropriate position. After the electromagnet is energized and attracts the positioning core, the punch of the punching machine is aligned with the guide groove to punch a hole.

[0032] When multiple holes need to be punched, the clamping cylinder is moved by the slide rail, and the internal positioning core also moves synchronously. After moving to the next position, the punching machine also moves to the corresponding position to punch the hole.

[0033] After punching is completed, the punching machine returns to its initial position, the fixed insert is moved out from the other end of the pull rod, the clamp moves the positioning core to the end opening of the pull rod, and removes all the slotted parts. The drive unit will automatically scrape out the remaining debris at the slot and let it fall into the chip removal groove. After cleaning, the clamp moves the positioning core back to the smooth rod, and finally the pull rod can be removed.

[0034] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the scope of protection of the present invention.

Claims

1. A punching device for luggage trolley rods, characterized in that: The system includes a workbench (1), a positioning plate (2) on the workbench (1), a center rod (3) on the positioning plate (2), a threaded section (31) on the side of the center rod (3) near the positioning plate (2), a smooth rod (32) on the side of the center rod (3) away from the positioning plate (2), a positioning core (4) slidably mounted on the smooth rod (32), the shape of the positioning core (4) matching the through hole in the pull rod, an adjusting sleeve (5) threadedly mounted on the threaded section (31), a positioning cylinder (51) connected to the adjusting sleeve (5), a positioning ring groove (41) opened on the end face of the positioning core (4) near the positioning cylinder (51), the positioning cylinder (51) matching the positioning ring groove (41), and a punching machine (6) above the positioning plate (2).

2. The punching equipment for luggage handles as described in claim 1, characterized in that: The positioning core (4) is provided with a positioning mechanism on its outer side. The positioning mechanism includes a clamp (7). The inner side of the clamp (7) is provided with a positioning groove (71) that matches the pull rod. The top of the clamp (7) on the side away from the positioning plate (2) is connected to a top plate (72). The top plate (72) is provided with a guide groove (73) for the punch of the punching machine (6) to pass through.

3. The punching equipment for luggage handles as described in claim 2, characterized in that: The clamp (7) consists of two symmetrically arranged clamps (74).

4. The bag handle punching equipment as described in claim 2, characterized in that: The positioning plate (2) has a first slide rail (61) on one side, and a first slider (62) is slidably mounted on the first slide rail (61). The first slider (62) is connected to a base, and a punching bracket is mounted on the base. A punching machine (6) is mounted on the punching bracket. The positioning plate (2) has a second slide rail (42) on the other side, and a second slider (43) is slidably mounted on the second slide rail (42). The second slider (43) is connected to a vertical plate (44), and the vertical plate (44) is fixed to the side of a movable seat (45). The movable seat (45) is located below the positioning core (4), and the positioning mechanism is mounted on the movable seat (45).

5. The bag handle punching equipment as described in claim 2, characterized in that: The positioning core (4) includes a driving part (8) and a positioning part (9). The driving part (8) has magnetic suction parts (81) that can be magnetically attracted on its left and right sides. Electromagnets (75) are embedded on the left and right sides of the positioning groove (71). The position of the electromagnets (75) matches the magnetic suction parts (81). The top of the positioning part (9) has a clearance groove (91). The bottom of the end face of the positioning part (9) away from the driving part (8) has a slot (92). The slot (92) is connected to the clearance groove (91).

6. The bag handle punching equipment as described in claim 5, characterized in that: The center of the drive unit (8) is provided with a groove (82) that matches the light rod (32).

7. The bag handle punching equipment as described in claim 1, characterized in that: The workbench (1) is provided with a mounting plate (21) on the side away from the positioning plate (2). A drive screw (22) is mounted on the mounting plate (21). A moving plate (23) is threaded onto the drive screw (22). A fixing block (24) is mounted on the side of the moving plate (23) close to the positioning plate (2). The shape of the fixing block (24) matches the through hole in the pull rod.

8. The bag handle punching equipment as described in claim 1, characterized in that: The workbench (1) is provided with a discharge trough (10), which is located between the mounting plate (21) and the positioning plate (2), and the discharge trough (10) is located on the side close to the mounting plate (21).

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