Riveting and punching two-in-one lithium battery tool based on ball screw transmission

Abstract

The utility model relates to the field of handheld electric tools, in particular to a riveting and punching two-in-one lithium battery tool based on ball screw transmission. The device comprises a shell, a driving mechanism and a processing mechanism, the driving mechanism comprises a motor shell arranged in the shell, a motor arranged in the motor shell, a transmission lead screw connected with the output end of the motor, a ball screw nut in transmission connection with the transmission lead screw, a ball screw in rolling connection with the ball screw nut through a ball, and a sliding block connected to the end of the ball screw and arranged in the shell in a sliding mode. The ball screw nut is rotationally arranged in the shell; the processing mechanism comprises a rivet pulling mechanism and a punching mechanism which are arranged on the shell and connected with the ball screw selectively. According to the utility model, a ball screw transmission structure is adopted, the transmission efficiency is improved, the abrasion of parts is reduced, the thread sliding condition is avoided, and the rivet pulling mechanism or the punching mechanism is selected to carry out rivet pulling or punching operation as required.

Description

Technical Field

[0001] This utility model relates to the field of handheld power tools, and in particular to a lithium-ion battery-powered tool that combines riveting and punching based on ball screw transmission. Background Technology

[0002] Currently, most handheld power tools on the market, such as rivet guns and punches, generally adopt a screw drive structure. The screw drives other structures to achieve the rivet operation of the rivet gun or the punch operation of the punch. The disadvantage of screw drive is that the screw is prone to wear, especially when subjected to high torque, the screw is prone to stripping, which affects the rivet and punch operations. Utility Model Content

[0003] The purpose of this utility model is to address the problems existing in the background technology by proposing a two-in-one lithium battery tool for riveting and punching based on ball screw transmission. The tool adopts a ball screw transmission structure to improve transmission efficiency, reduce wear on parts, and avoid slippage. A riveting mechanism or a punching mechanism can be selected as needed for riveting or punching operations.

[0004] The present invention provides a combined riveting and punching lithium battery tool based on ball screw drive, comprising a housing, a drive mechanism, and a processing mechanism. The drive mechanism includes a motor housing disposed within the housing, a motor disposed within the motor housing, a transmission screw connected to the output end of the motor, a ball screw nut connected to the transmission screw, a ball screw connected to the ball screw nut via rolling balls, and a slider connected to the end of the ball screw and slidably disposed within the housing. The ball screw nut is rotatably disposed within the housing. The processing mechanism includes a riveting mechanism and a punching mechanism disposed on the housing and selectively connected to the ball screw.

[0005] Preferably, a Hall plate for controlling the operation of the motor is installed on the motor housing.

[0006] Preferably, the drive mechanism further includes a bracket disposed at the head of the housing, a ball screw bracket connected to the bracket, and a washer connected between the bracket and the ball screw bracket, wherein the ball screw nut is rotatably mounted between the bracket and the ball screw bracket via a bearing ring.

[0007] Preferably, the riveting mechanism includes a rivet assembly, a return rod, and a collection bucket. The rivet assembly includes a rivet cylinder connected to the outer shell, a sunflower seed chip disposed inside the rivet cylinder, a sunflower seed chip fixing sleeve for fixing the sunflower seed chip, and a sunflower seed chip top sleeve abutting against the sunflower seed chip. The sunflower seed chip fixing sleeve is connected to a ball screw, the sunflower seed chip top sleeve is connected to the return rod, and the collection bucket is connected to the rear end of the outer shell.

[0008] Preferably, the punching mechanism includes a connecting sleeve threaded to the outer shell, an outer sleeve threaded to the connecting sleeve, a lead screw sleeve linearly slidably disposed on the outer sleeve, a punch fixing block connected to the lead screw sleeve, a punch disposed on the punch fixing block, a fixing frame disposed on the outer sleeve, and a punch die slidably locked on the fixing frame. The lead screw sleeve is connected to a ball screw. The punch die has a U-shaped channel for the workpiece to extend into and a sliding hole for the punch to pass through. The fixing frame has a through hole and a notch aligned with the U-shaped channel.

[0009] Preferably, the punch fixing block has a groove, and the lead screw sleeve has an end head that is slidably engaged in the groove.

[0010] Preferably, a first light-positioning component is provided on the top of the die, and a second light-positioning component is provided on the side of the fixing frame.

[0011] Preferably, the first light positioning component includes a first lamp bead fixing block and a first lamp bead disposed on the first lamp bead fixing block, the first lamp bead fixing block having a first light-transmitting strip hole, and the second light positioning component includes a second lamp bead fixing block and a second lamp bead disposed on the second lamp bead fixing block, the second lamp bead fixing block having a second light-transmitting strip hole, the second light-transmitting strip hole being perpendicular to the first light-transmitting strip hole.

[0012] Compared with the prior art, the present invention has the following beneficial technical effects:

[0013] This invention employs a ball screw transmission structure. The ball screw and ball screw nut form a rolling helical pair through the rolling connection of the balls, improving transmission efficiency, reducing component wear, and extending service life. A riveting mechanism or a punching mechanism can be optionally installed for riveting or punching operations as needed, offering flexibility. Switching between processing methods is achieved simply by changing the riveting or punching mechanism, without replacing the entire tooling, thus saving costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0015] Figure 2 for Figure 1 A schematic diagram of the inner partial structure;

[0016] Figure 3 for Figure 1 Exploded view of the local structure;

[0017] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0018] Figure 5 for Figure 4 A partial structural cross-sectional view.

[0019] Reference numerals: 1. Outer shell; 2. Motor; 201. Motor housing; 3. Lead screw; 4. Slider; 5. Bracket; 6. Ball screw nut; 7. Bearing ring; 8. Washer; 9. Ball screw; 10. Ball screw bracket; 11. Rivet assembly; 12. Return rod; 13. Collection bucket; 14. Hall plate; 15. Connecting sleeve; 16. Outer sleeve; 17. Lead screw sleeve; 18. Punch fixing block; 19. Punch; 20. Die; 21. Fixing frame; 211. Through hole; 22. First light positioning assembly; 23. Second light positioning assembly. Detailed Implementation

[0020] Example 1

[0021] like Figures 1-3 As shown in the figure, this embodiment proposes a two-in-one lithium battery tool for riveting and punching based on ball screw transmission, including a housing 1, a drive mechanism and a riveting mechanism.

[0022] The drive mechanism includes a motor housing 201 housed within the outer casing 1, a motor 2 housed within the motor housing 201, a transmission screw 3 connected to the output end of the motor 2, a ball screw nut 6 connected to the transmission screw 3, a ball screw 9 connected to the ball screw nut 6 via rolling balls, a slider 4 connected to the end of the ball screw 9 and slidably disposed within the outer casing 1, a bracket 5 disposed at the head of the outer casing 1, a ball screw bracket 10 connected to the bracket 5, and a washer 8 connecting the bracket 5 and the ball screw bracket 10. The ball screw nut 6 is rotatably disposed within the outer casing 1 and is rotatably mounted between the bracket 5 and the ball screw bracket 10 via a bearing ring 7. A Hall plate 14 for controlling the operation of motor 2 is installed on the motor housing 201. The Hall plate 14 monitors current changes and dynamically adjusts the output torque of motor 2. Motor 2 drives transmission screw 3 to rotate, which in turn drives ball screw nut 6 to rotate. Ball screw nut 6 drives ball screw 9 to move through the balls. Slider 4 slides inside housing 1, providing linear guidance for ball screw 9, allowing it to move in a straight line. A rechargeable lithium battery that supplies power to motor 2 is detachably installed inside housing 1.

[0023] The riveting mechanism includes a rivet assembly 11, a return rod 12, and a collection bucket 13. The rivet assembly 11 includes a rivet cylinder connected to the outer casing 1, a seed chip disposed inside the rivet cylinder, a seed chip fixing sleeve for fixing the seed chip, and a seed chip top sleeve abutting against the seed chip. The seed chip fixing sleeve is connected to a ball screw 9, and the seed chip top sleeve is connected to the return rod 12. The collection bucket 13 is connected to the rear end of the outer casing 1. When the ball screw 9 moves inward, it can pull the rivet through the seed chip fixing sleeve and the seed chip, and the pulled-off rivet waste is collected into the collection bucket 13 at the rear.

[0024] In this embodiment, a ball screw transmission structure is adopted. The ball screw 9 and the ball screw nut 6 form a rolling helical pair through the rolling connection of the balls, which improves transmission efficiency, reduces wear on parts, and extends service life. Under the driving action of the drive mechanism, the ball screw 9 drives the rivet fixing sleeve in the rivet assembly 11 to move inward, pulling the rivet clamped by the rivet inward until the rivet breaks, thus realizing the riveting operation.

[0025] Example 2

[0026] This embodiment proposes a combined riveting and punching lithium battery tool based on ball screw drive. In this embodiment, as shown... Figure 4 and Figure 5 As shown, the riveting mechanism in Embodiment 1 is replaced with a punching mechanism. The punching mechanism includes a connecting sleeve 15 threaded to the outer casing 1, an outer sleeve 16 threaded to the connecting sleeve 15, a lead screw sleeve 17 linearly slidably disposed on the outer sleeve 16, a punch fixing block 18 connected to the lead screw sleeve 17, a punch 19 disposed on the punch fixing block 18, a fixing frame 21 disposed on the outer sleeve 16, and a punch die 20 slidably locked on the fixing frame 21. The lead screw sleeve 17 is connected to the ball screw 9. The punch die 20 has a U-shaped channel for the workpiece to extend into, and a sliding hole for the punch 19 to pass through. The fixing frame 21 has a through hole 211 and a notch aligned with the U-shaped channel. The diameter of the through hole 211 is larger than the diameter of the sliding hole, and the notch facilitates the placement of the workpiece into the U-shaped channel. When the ball screw 9 moves outward, it drives the screw sleeve 17 to move outward. The screw sleeve 17 drives the punch 19 to move outward through the punch fixing block 18. The punch 19 is used to punch the workpiece that extends into the U-shaped channel. The punched-off waste material is discharged from the through hole 211.

[0027] For the sliding connection between the lead screw sleeve 17 and the outer sleeve 16, a protruding slide bar is provided on the outer periphery of the lead screw sleeve 17, and a slide groove is provided on the inner wall of the outer sleeve 16. The slide groove is adapted to the slide bar, so that the lead screw sleeve 17 can move linearly at the slide groove by utilizing the slide bar.

[0028] For the connection between the punch fixing block 18 and the lead screw sleeve 17, to facilitate disassembly, a slot is designed on the punch fixing block 18, and the lead screw sleeve 17 has an end head that slides and is locked in the slot. The punch fixing block 18 is locked in the end head of the lead screw sleeve 17 through the slot, and the punch fixing block 18 itself is slidably disposed in the internal space of the fixing frame 21.

[0029] A first light-emitting positioning component 22 is provided on the top of the die 20, and a second light-emitting positioning component 23 is provided on the side of the fixing frame 21. The first light-emitting positioning component 22 includes a first lamp bead fixing block and a first lamp bead disposed on the first lamp bead fixing block. The first lamp bead fixing block has a first light-transmitting strip hole. The second light-emitting positioning component 23 includes a second lamp bead fixing block and a second lamp bead disposed on the second lamp bead fixing block. The second lamp bead fixing block has a second light-transmitting strip hole, which is perpendicular to the first light-transmitting strip hole. The two lamp beads emit two infrared rays vertically distributed through the two light-transmitting strip holes, which can position the punched workpiece in the X and Y directions. After accurate positioning, the punch 19 is used to punch the workpiece, making the punching process more accurate.

[0030] This embodiment uses a ball screw drive structure to make the ball screw 9 move smoothly, and drive the punch 19 to extend to realize the punching process of the workpiece, thus ensuring the processing quality.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A lithium battery tool for both rivet pulling and hole punching based on ball screw transmission, characterized in that, The utility model relates to a kind of automatic rivet and punch machine, including: Shell (1); Driving mechanism, including motor shell (201) being arranged in shell (1), motor (2) being arranged in motor shell (201), transmission screw rod (3) being connected with the output end of motor (2), ball screw nut (6) being drivingly connected with transmission screw rod (3), ball screw (9) being connected with ball screw nut (6) by ball rolling, and sliding block (4) being connected in the end of ball screw (9) and slidingly arranged in shell (1), ball screw nut (6) is rotatably arranged in shell (1); Processing mechanism, including pull rivet mechanism and punching mechanism being selectively connected with ball screw (9) and being arranged on shell (1).

2. The ball screw driven rivet and punch all-in-one lithium electric tool of claim 1, wherein, Motor shell (201) is provided with Hall plate (14) for controlling the operation of motor (2).

3. The ball screw driven rivet and punch all-in-one lithium electric tool of claim 1, wherein, Driving mechanism further includes support (5) being arranged in the head of shell (1), ball screw support (10) being connected with support (5) and spacer (8) being connected between support (5) and ball screw support (10), and ball screw nut (6) is rotatably mounted between support (5) and ball screw support (10) by bearing ring (7).

4. The ball screw driven rivet and punch all-in-one lithium electric tool of claim 1, wherein, Pull rivet mechanism includes pull rivet assembly (11), return rod (12) and collection barrel (13), pull rivet assembly (11) includes pull rivet cylinder being connected with shell (1), melon slice being arranged in pull rivet cylinder, melon slice fixing sleeve for fixing melon slice and melon slice top sleeve for abutting on melon slice, melon slice fixing sleeve is connected with ball screw (9), melon slice top sleeve is connected with return rod (12), and collection barrel (13) is connected to the rear end of shell (1).

5. The ball screw driven pull-rivet and punch-in-one lithium electric tool of claim 1, wherein, Punching mechanism includes connecting sleeve (15) being threadedly connected with shell (1), outer sleeve (16) being threadedly connected with connecting sleeve (15), screw sleeve (17) being linearly slidably arranged on outer sleeve (16), punch fixed block (18) being connected with screw sleeve (17), punch (19) being arranged on punch fixed block (18), fixing frame (21) being arranged on outer sleeve (16) and punch die (20) being slidably clamped on fixing frame (21), screw sleeve (17) is connected with ball screw (9), punch die (20) has U-shaped channel for workpiece to extend into, punch die (20) has sliding hole for punch (19) to pass through, and fixing frame (21) has through hole (211) and notch being aligned with U-shaped channel.

6. The ball screw driven rivet and punch all-in-one lithium electric tool of claim 5, wherein, Punch fixed block (18) has clamping groove, and screw sleeve (17) has end portion being slidably clamped in clamping groove.

7. The ball screw driven rivet and punch all-in-one lithium electric tool of claim 5, wherein, Punch die (20) is provided with first light positioning assembly (22) on top, and fixing frame (21) is provided with second light positioning assembly (23) on side surface.

8. The ball screw driven rivet and punch all-in-one lithium electric tool of claim 7, wherein, First light positioning assembly (22) includes first lamp bead fixed block and first lamp bead being arranged on first lamp bead fixed block, and first lamp bead fixed block has first light transmission strip hole, second light positioning assembly (23) includes second lamp bead fixed block and second lamp bead being arranged on second lamp bead fixed block, and second lamp bead fixed block has second light transmission strip hole, and second light transmission strip hole is perpendicular to first light transmission strip hole.

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