Multi-station punching device for motor shell of power-assisted bicycle
By designing a multi-station drilling device, using clamping devices and precise drilling devices, the problem of accuracy deviation in traditional drilling devices during the multi-porous drilling process is solved, and efficient and accurate drilling effects are achieved, and product quality is improved.
Patent Information
- Application Number
- CN202421589860.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-05
- Publication Date
- 2025-05-09
- Estimated Expiration
- 2034-07-05
AI Technical Summary
The traditional power-assisted bicycle motor housing drilling device requires rotating the product during the hole drilling process, resulting in a deviation in the drilling accuracy and affecting the product quality.
A multi-station drilling device is designed, including a clamping device and two drilling devices. The clamping device fixes the workpiece through a cylinder and a clamping rod. The drilling device uses a positioning plate and an adjustment rod to accurately adjust the drill bit position. The two drilling devices perform hole drilling operations at the same time.
Improves hole punching efficiency and accuracy, reduces errors caused by rotating products, and significantly improves product quality.
Smart Images
Figure CN222843186U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of drilling equipment, and in particular to a multi-station drilling device for a motor housing of a power-assisted bicycle. Background Art
[0002] In the production process of power-assisted bicycles, drilling holes in the motor housing is an important step. Figure 1 The motor housing 100 includes a plurality of connecting columns 120, which are axially distributed along the outer wall of the motor housing 100 at both ends of the motor housing 100. The end of the connecting column 120 away from the end of the motor housing 100 is fixedly connected to a flange 110, and the end of the connecting column 120 close to the end of the motor housing 100 needs to be drilled using a punching device.
[0003] Traditional punching devices usually use a double-hole drill bit design, which requires first drilling two holes when drilling, and then rotating the product for the next round of drilling.
[0004] In the drilling process of the above-mentioned related drilling equipment, since the product needs to be rotated to drill multiple holes, this rotation operation often causes deviations in drilling accuracy, thereby affecting the overall quality of the product. Utility Model Content
[0005] In order to improve product quality, the present application provides a multi-station punching device for a motor housing of a power-assisted bicycle.
[0006] The present application provides a multi-station punching device for a power-assisted bicycle motor housing, which adopts the following technical solution:
[0007] A multi-station punching device for a power-assisted bicycle motor housing comprises a clamping device for fixing a workpiece and two drilling devices, wherein the clamping device is located between the two drilling devices, and the drilling device comprises a positioning plate and a plurality of drill bits, wherein the drill bits are provided with an adjusting rod for adjusting the drilling position of the drill bits, and one side of the adjusting rod abuts against the positioning plate.
[0008] By adopting the above technical solution, the clamping device fixes the workpiece, then makes the drill bit abut against the workpiece, and then adjusts the drilling position of the drill bit by adjusting the position of the adjusting rod. Finally, the two drilling devices perform drilling operations at the same time, which improves the drilling efficiency and accuracy, reduces the error caused by rotating the product, and improves the product quality.
[0009] Optionally, the clamping device includes a base and a plurality of cylinders, the upper end of the base is detachably connected to a base plate, a clamping plate is fixedly provided on the side of the base plate away from the base, a fixing plate for installing the cylinder is provided on the clamping plate, a through hole adapted to the workpiece is provided on the clamping plate, the extension direction of the cylinder output end is parallel to the axial direction of the through hole, the cylinder output end is rotatably connected to a clamping rod for clamping the workpiece, the clamping rod is rotatably connected to a connecting rod, and the end of the connecting rod away from the clamping rod is rotatably connected to the cylinder body of the cylinder.
[0010] By adopting the above technical solution, one end of the workpiece passes through the clamping plate, the output end of the cylinder pushes the clamping rod to move, the clamping rod is rotatably connected with the cylinder under the action of the connecting rod, and the clamping rod rotates in the direction close to the workpiece, thereby clamping the workpiece on the clamping plate. By replacing the clamping plate, workpieces of different sizes can be adapted.
[0011] Optionally, a baffle is detachably connected to one side of the clamping plate close to the output end of the cylinder, and a through opening adapted to the workpiece is formed on the baffle.
[0012] By adopting the above technical solution, the opening of the baffle is adapted to the workpiece, the baffle is installed on the clamping plate, and the workpiece is limited by the baffle, thereby reducing the drilling error caused by the rotation of the workpiece and improving product quality.
[0013] Optionally, a protective pad for fitting with a workpiece is provided at one end of the clamping rod.
[0014] By adopting the above technical solution, the damage caused by the clamping rod squeezing the workpiece can be reduced.
[0015] Optionally, a plurality of ribs are fixedly connected between the clamping plate and the bottom plate.
[0016] By adopting the above technical solution, the stability of the clamping plate is improved.
[0017] Optionally, a lifting device for adjusting the height of the drilling device is also included.
[0018] By adopting the above technical solution, the lifting device is adjusted to align the drill bit with the drilling position, thereby improving the accuracy.
[0019] Optionally, the drilling device also includes a lifting block, the lifting device includes a screw, a guide rod, a limit frame and a handwheel, the screw is rotatably connected to the limit frame, the guide rod is fixedly connected to the limit frame, the upper end of the screw is fixedly connected to the handwheel, one end of the lifting block is located in the limit frame, the screw and the guide rod both pass through the lifting block in a vertical direction, the screw is threadedly connected to the lifting block, and the guide rod is slidably connected to the lifting block.
[0020] By adopting the above technical solution, the screw rod can be driven to rotate by rotating the hand wheel, thereby driving the lifting block to move up and down along the guide rod to achieve adjustment of the height of the drilling device.
[0021] Optionally, the positioning plate is provided with an annular groove on one side close to the adjusting rod, and the cross-sectional shape of the annular groove is "convex". The adjusting rod is provided with a penetrating adjusting groove along the axis direction of the drill bit. The positioning plate is provided with a positioning bolt in the annular groove. The positioning bolt is slidingly connected to the positioning plate along the annular groove, and the end of the positioning bolt away from the positioning plate passes through the adjusting groove and is threadedly connected with a nut.
[0022] In summary, the present application includes at least one of the following beneficial technical effects:
[0023] 1. The clamping device fixes the workpiece, then makes the drill bit contact the workpiece, and then adjusts the drilling position of the drill bit by adjusting the position of the adjusting rod. Finally, the two drilling devices perform drilling operations at the same time, which improves the drilling efficiency and accuracy, reduces the error caused by rotating products, and improves product quality;
[0024] 2. One end of the workpiece passes through the clamping plate, and the output end of the cylinder pushes the clamping rod to move. The clamping rod is connected to the cylinder through the action of the connecting rod, and the clamping rod rotates toward the workpiece, thereby clamping the workpiece on the clamping plate. Workpieces of different sizes can be adapted by replacing the clamping plate;
[0025] 3. The opening of the baffle is adapted to the workpiece, and the baffle is installed on the clamping plate. The workpiece is limited by the baffle, which reduces the drilling error caused by the rotation of the workpiece and improves the product quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 It is a schematic diagram of the overall structure of the workpiece.
[0027] Figure 2 The invention discloses an overall structural diagram of a multi-station punching device for a motor housing of a power-assisted bicycle.
[0028] Figure 3 It is a schematic diagram of the overall structure of the clamping device.
[0029] Figure 4 It is a schematic diagram of the overall structure of the lifting device.
[0030] Figure 5 It is a structural schematic diagram of the positioning plate and the adjusting rod.
[0031] Figure 6 yes Figure 5 Schematic diagram of the cross section along the AA direction.
[0032] Explanation of the reference numerals: 100, motor housing; 110, flange; 120, connecting column; 1, clamping device; 11, base; 12, cylinder; 121, clamping rod; 122, connecting rod; 123, protective pad; 13, bottom plate; 131, rib plate; 14, clamping plate; 141, through hole; 15, fixing plate; 16, baffle; 161, through opening; 2, drilling device; 21, positioning plate; 211, annular groove; 22, drill bit; 23, adjusting rod; 231, adjusting groove; 24, lifting block; 25, positioning bolt; 26, nut; 3, lifting device; 31, screw; 32, guide rod; 33, limit frame; 34, handwheel. DETAILED DESCRIPTION
[0033] The present application is further described in detail below in conjunction with all the accompanying drawings.
[0034] The embodiment of the present application discloses a multi-station punching device for a motor housing of a power-assisted bicycle.
[0035] Reference Figure 2 A multi-station punching device for a motor housing of an electric power-assisted bicycle comprises a clamping device 1 for fixing a workpiece and two drilling devices 2. The clamping device 1 is located between the two drilling devices 2 and is used to fix the workpiece to ensure stability during the punching process.
[0036] Reference Figure 2 and Figure 3 The clamping device 1 includes a base 11 and a plurality of cylinders 12. The upper end of the base 11 is detachably connected to a bottom plate 13 for easy installation and removal. A clamping plate 14 is fixedly provided on the side of the bottom plate 13 away from the base 11. A fixing plate 15 for installing the cylinder 12 is provided on the clamping plate 14 to ensure the stable installation of the cylinder 12. A through hole 141 adapted to the workpiece is provided on the clamping plate 14. One end of the motor housing 100 passes through the through hole 141. The flange 110 is blocked by the clamping plate 14 and cannot pass through, so that the workpiece can be smoothly placed and clamped. The axis of the output end of the cylinder 12 is parallel to the axis of the through hole 141 to ensure uniform distribution of the clamping force. The output end of the cylinder 12 is rotatably connected to a clamping rod 121 for clamping the workpiece. The clamping rod 121 is rotatably connected to the cylinder 12 through a connecting rod 122 to realize the opening and closing action of the clamping rod 121, thereby clamping or releasing the workpiece.
[0037] Reference Figure 2 and Figure 3In order to further enhance the clamping stability, a baffle 16 is detachably connected to the side of the clamping plate 14 near the output end of the cylinder 12. The baffle 16 is provided with a through hole 161 adapted to the workpiece. The motor housing 100 and the connecting column 120 are completely fitted with the wall of the through hole 161. The baffle 16 is fixed to the clamping plate 14 with bolts to ensure the accurate positioning of the workpiece during the clamping process. At the same time, a protective pad 123 is provided at the end of the clamping rod 121 that fits the workpiece to avoid damage to the workpiece during the clamping process.
[0038] Reference Figure 2 In order to improve the overall strength of the clamping plate 14, a plurality of ribs 131 are fixedly connected between the clamping plate 14 and the bottom plate 13 to form a stable supporting structure.
[0039] Reference Figure 2 and Figure 4 The drilling device 2 includes a driving device, a positioning plate 21 and a plurality of drill bits 22. The driving device is used to drive the drilling device 2 to move and drive the drill bits 22 to rotate. The driving device is a prior art and will not be described in detail. The drill bit 22 is provided with an adjusting rod 23 for adjusting the drilling position of the drill bit 22. One side of the adjusting rod 23 is in contact with the positioning plate 21. The position of the drill bit 22 can be accurately adjusted by the adjusting rod 23 to meet the drilling requirements of different hole positions.
[0040] Reference Figure 2 and Figure 4 The drilling device of the present application also includes a lifting device 3 for adjusting the height of the drilling device 2 to meet the drilling requirements of workpieces of different sizes. The lifting device 3 includes a screw rod 31, a guide rod 32, a limit frame 33 and a hand wheel 34. The screw rod 31 is driven to rotate by rotating the hand wheel 34, thereby realizing the up and down movement of the lifting block 24. The guide rod 32 is slidably connected to the lifting block 24 to ensure the stability of the lifting process.
[0041] Reference Figure 5 and Figure 6 The positioning plate 21 is provided with an annular groove 211 on one side close to the adjusting rod 23. The cross-section of the annular groove 211 is convex, which not only plays a guiding role but also enhances the structural strength. The adjusting rod 23 is provided with an adjusting groove 231 penetrating along the axial direction of the drill bit 22, so that the drilling position of the drill bit 22 can be adjusted by the adjusting rod 23. The positioning plate 21 is provided with a positioning bolt 25 in the annular groove 211. The positioning bolt 25 is slidably connected to the positioning plate 21 along the annular groove 211 and is tightened by a nut 26 passing through the adjusting groove 231, so as to achieve precise adjustment of the position of the drill bit 22.
[0042] In addition, the lifting device 3 can be omitted to make the overall structure more concise. In this case, the height of the drilling device 2 is fixed, which is suitable for drilling holes in workpieces of a specific size. The structure and implementation principle of the remaining parts are the same as those of the above embodiment.
[0043] The implementation principle of the multi-station punching device for the motor housing of a power-assisted bicycle in the embodiment of the present application is as follows: when in use, first place the workpiece in the through hole 141 of the clamping plate 14, and drive the clamping rod 121 through the cylinder 12 to clamp the workpiece. Then, according to the size of the workpiece and the punching position requirements, adjust the height of the drilling device 2 through the lifting device 3. Next, adjust the drilling position of the drill bit 22 through the adjustment rod 23, and make it abut against the positioning plate 21 to ensure the positioning accuracy. Finally, start the drilling device 2 to perform double-sided simultaneous punching operations.
[0044] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A multi-station punching device for a motor housing of an electric power-assisted bicycle, characterized in that: The invention comprises a clamping device (1) for fixing a workpiece and two drilling devices (2), wherein the clamping device (1) is located between the two drilling devices (2), and the drilling device (2) comprises a positioning plate (21) and a plurality of drill bits (22). The drill bits (22) are provided with an adjusting rod (23) for adjusting the drilling position of the drill bits (22), and one side of the adjusting rod (23) is in contact with the positioning plate (21).
2. The multi-station punching device for the motor housing of an electric power-assisted bicycle according to claim 1, characterized in that: The clamping device (1) comprises a base (11) and a plurality of cylinders (12); the upper end of the base (11) is detachably connected to a bottom plate (13); a clamping plate (14) is fixedly provided on a side of the bottom plate (13) away from the base (11); a fixing plate (15) for mounting the cylinder (12) is provided on the clamping plate (14); a through hole (141) adapted to a workpiece is provided on the clamping plate (14); the telescopic direction of the output end of the cylinder (12) is parallel to the axial direction of the through hole (141); the output end of the cylinder (12) is rotatably connected to a clamping rod (121) for clamping the workpiece; the clamping rod (121) is rotatably connected to a connecting rod (122); an end of the connecting rod (122) away from the clamping rod (121) is rotatably connected to the cylinder body of the cylinder (12).
3. The multi-station punching device for the motor housing of an electric power-assisted bicycle according to claim 2, characterized in that: A baffle (16) is detachably connected to one side of the clamping plate (14) close to the output end of the cylinder (12), and a through opening (161) adapted to fit the workpiece is provided on the baffle (16).
4. The multi-station punching device for the motor housing of an electric power-assisted bicycle according to claim 2, characterized in that: A protection pad (123) for fitting with a workpiece is provided at one end of the clamping rod (121).
5. The multi-station punching device for the motor housing of an electric power-assisted bicycle according to claim 2, characterized in that: A plurality of ribs (131) are fixedly connected between the clamping plate (14) and the bottom plate (13).
6. The multi-station punching device for the motor housing of an electric power-assisted bicycle according to claim 1, characterized in that: It also includes a lifting device (3) for adjusting the height of the drilling device (2).
7. The multi-station punching device for the motor housing of an electric power-assisted bicycle according to claim 6, characterized in that: The drilling device (2) further comprises a lifting block (24), and the lifting device (3) comprises a screw rod (31), a guide rod (32), a limit frame (33) and a hand wheel (34), wherein the screw rod (31) is rotatably connected to the limit frame (33), the guide rod (32) is fixedly connected to the limit frame (33), the upper end of the screw rod (31) is fixedly connected to the hand wheel (34), one end of the lifting block (24) is located in the limit frame (33), the screw rod (31) and the guide rod (32) both pass through the lifting block (24) in a vertical direction, the screw rod (31) is threadedly connected to the lifting block (24), and the guide rod (32) is slidably connected to the lifting block (24).
8. The multi-station punching device for the motor housing of an electric power-assisted bicycle according to claim 1, characterized in that: The positioning plate (21) is provided with an annular groove (211) on one side close to the adjusting rod (23), the cross-section of the annular groove (211) being convex, the adjusting rod (23) being provided with an adjusting groove (231) penetrating along the axial direction of the drill bit (22), the positioning plate (21) being provided with a positioning bolt (25) in the annular groove (211), the positioning bolt (25) being slidably connected to the positioning plate (21) along the annular groove (211), and the end of the positioning bolt (25) away from the positioning plate (21) passing through the adjusting groove (231) and being threadedly connected to a nut (26).