Bearing mounting hole turning device for bicycle hub

Abstract

The utility model relates to the technical field of turning devices, in particular to a bearing mounting hole turning device for a bicycle hub, which is characterized in that a partition plate horizontally arranged in a box body divides the box body into a working chamber and a recycling chamber from top to bottom, and a plurality of through grooves in the partition plate enable the working chamber to be communicated with the recycling chamber; the supporting seat is vertically arranged on the partition plate, a V-shaped groove used for supporting the hub is formed in the top of the supporting seat in the length direction of the hub, and two locking assemblies are symmetrically arranged on the two sides of the supporting seat in the length direction of the hub. The two turning tools are symmetrically arranged on the two sides of the supporting base in the length direction of the hub and driven by the two first motors to rotate correspondingly. The driving assembly is connected with the two first motors and used for driving the two first motors to move. And the two dust collecting covers are respectively arranged above the partition plate and are communicated with a dust remover arranged on the outer side of the box body through a pipeline. The utility model solves the problem of long processing time in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of turning devices, in particular to a turning device for a bearing mounting hole of a bicycle hub. Background Art

[0002] The bicycle hub, commonly known as the "hub barrel", is the barrel outside the axle core that connects to the spokes, usually also called the axle skin. It is used to support and enable the wheel to rotate smoothly. Specifically, the hub is connected to the frame through the axle core, and the pedal drives the hub body to rotate around the axle core through the chain, and then drives the wheel rim to rotate through the spokes. It is a key driving component for the operation of the bicycle. The coaxiality of the bearings at both ends of the hub body directly affects the stability of wheel rotation.

[0003] In the prior art, the patent document discloses a bicycle hub and its high-precision forming process (application number: CN202011576719.1), including a driving hub, including an axle core, a hub body and a shaft sleeve. During processing, the rod is cut to a fixed length and clamped on a lathe, the end is flattened, and the bearing cavity on one side is first drilled; then the center hole is drilled and the external thread is turned, and then the workpiece is turned around and the fixture is clamped with the center hole positioning reference; then the bearing cavity on the other side and the remaining part are drilled. This invention improves the coaxiality of the bearing cavities at both ends, thereby improving the installation accuracy.

[0004] However, the above process has the following problems in actual use: because the bearing mounting holes at both ends of the hub body are processed twice, the processing speed is slow, the required turning time is long, and the coaxiality of the two bearing mounting holes may be poor. In addition, during the processing, the dust or metal scraps generated are easy to affect the surrounding environment, reducing the environmental friendliness of the device. Utility Model Content

[0005] In view of this, the utility model provides a bearing mounting hole turning device for a bicycle hub, aiming to solve the problem of long processing time in the prior art.

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A bearing mounting hole turning device for a bicycle hub, comprising:

[0008] A box body, wherein a partition arranged horizontally inside the box body divides the box body into a working room and a recovery room from top to bottom, and a plurality of through grooves arranged on the partition body connect the working room and the recovery room;

[0009] A support seat is vertically arranged on the partition, a V-shaped groove for supporting the hub is arranged on the top of the support seat along the length direction of the hub, and two locking assemblies are symmetrically arranged on both sides of the support seat along the length direction of the hub, for locking the hub in place;

[0010] Two turning tools are symmetrically arranged on both sides of the support seat in the length direction of the hub, and the two turning tools are respectively driven by two first motors to rotate;

[0011] A driving assembly, connected to the two first motors respectively, and used to drive the two first motors to move; and

[0012] Two dust collecting hoods are respectively arranged above the partitions, and the dust collecting hoods are connected with the dust collectors arranged outside the box body through pipelines.

[0013] A further improvement of the utility model is that the driving assembly comprises:

[0014] A portal frame is horizontally arranged above the support seat, and the end of the first cylinder piston rod at the top of the box body is connected to the portal frame;

[0015] An optical axis is horizontally arranged on the portal frame, and two mounting plates are slidably connected thereto, and the two mounting plates are respectively connected to the two first motors;

[0016] The moving member is arranged on the portal frame and connected with the two mounting plates, and is used for driving the two mounting plates to move closer to or farther from each other.

[0017] A further improvement of the utility model is that the movable component includes a rotating shaft arranged on the portal frame, which is parallel to the optical axis and rotates under the drive of the second motor, and two threaded segments with opposite rotation directions are arranged on the rotating shaft, and the two threaded segments are respectively threadedly connected to and penetrate the two mounting plates.

[0018] A further improvement of the present invention is that the locking assembly comprises:

[0019] Two mutually parallel rotating shafts are connected to the supporting seat rotating shaft, and the axis direction of the rotating shaft is parallel to the length direction of the hub, and two mutually meshing first gears are arranged on the two rotating shafts;

[0020] A second cylinder is arranged on the box body, and a rack arranged at the end of the piston rod of the second cylinder is meshed with one of the first gears;

[0021] Two clamping arms are symmetrically arranged on both sides of the hub, and the lower end of each clamping arm is connected to the corresponding rotating shaft.

[0022] A further improvement of the utility model is that a first cooling pipe is arranged on the mounting plate, one end of the first cooling pipe faces the corresponding turning tool, the other end of the first cooling pipe passes through the box body and is connected with the water outlet of the liquid storage tank, and the water inlet of the liquid storage tank is connected with the bottom of the box body through a second cooling pipe.

[0023] A further improvement of the utility model is that the filter plate is horizontally arranged in the recovery chamber, and the upper surface of the filter plate is inclined.

[0024] A further improvement of the utility model is that a V-shaped groove is provided on the upper end of the clamping arm on a side close to the hub.

[0025] A further improvement of the utility model is that anti-slip strips are provided on the inner surfaces of the V-shaped grooves.

[0026] Due to the adoption of the above technical solution, the technical progress achieved by the utility model is:

[0027] The utility model provides a bearing mounting hole turning device for a bicycle hub. The hub is placed in a V-groove of a support seat, and then two locking components are operated to lock and position the two ends of the hub. A first cylinder drives a driving component and two first motors and a turning tool to descend to a suitable position, and then the driving component is operated to drive the two turning tools to approach each other, and the first motor is turned on to drive the two turning tools to rotate, so that the two ends of the hub are turned. The utility model processes both sides of the hub at the same time, saves production time, and improves production efficiency.

[0028] A large amount of heat is generated during the turning process of the turning tool. The first cooling pipe can move with the movement of the turning tool. The coolant in the liquid storage tank flushes and cuts the contact area between the turning tool and the hub through the first cooling pipe, takes away the heat, and reduces the temperature of the cutting area. In addition, cooling the turning tool can appropriately extend its life. After the coolant flows to the bottom of the box, it is filtered through the filter plate and can be recycled again. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 This is a schematic diagram of the structure of the turning device of the utility model;

[0031] Figure 2 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0032] Figure 3This is a schematic diagram of the structure of the locking assembly of the utility model;

[0033] Figure 4 This is a schematic diagram of the support base structure of the utility model;

[0034] Description of reference numerals:

[0035] 10-box, 11-partition, 12-studio, 13-recovery chamber, 14-support seat, 15-turning tool, 16-first motor, 17-dust hood, 18-dust collector, 19-filter plate, 20-locking assembly, 21-rotating shaft, 22-second cylinder, 23-first gear, 24-clamping arm, 25-rack, 30-driving assembly, 31-gantry, 32-optical axis, 33-first cylinder, 34-mounting plate, 35-moving member, 351-rotating shaft, 352-second motor, 353-threaded section, 41-first cooling pipe, 42-liquid storage tank, 43-second cooling pipe, 44-anti-slip strip. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, in the following description, specific details such as specific system structures and technologies are proposed for the purpose of explanation rather than limitation, so as to thoroughly understand the embodiments of the utility model. However, it should be clear to those skilled in the art that the utility model can also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from hindering the description of the utility model.

[0037] The utility model provides a bearing mounting hole turning device for a bicycle hub. Figure 1 -Attached Figure 4 It can be known that it includes: a partition 11 horizontally arranged inside the box body 10 divides the box body 10 into a working room 12 and a recovery room 13, and a plurality of through grooves arranged on the partition 11 connect the working room 12 and the recovery room 13; a support seat 14 is vertically arranged on the partition 11, and a V-shaped groove for supporting the hub is arranged on the top of the support seat 14 along the length direction of the hub, and two locking assemblies 20 symmetrically arranged on both sides of the support seat 14 along the length direction of the hub are used to lock the hub in position; two turning tools 15 are symmetrically arranged on both sides of the support seat 14 in the length direction of the hub, and the two turning tools 15 are rotated respectively under the drive of two first motors 16; the driving assembly 30 is respectively connected to the two first motors 16, and is used to drive the two first motors 16 to move; two dust hoods 17 are respectively arranged above the partition 11, and the dust hood 17 is connected to the dust collector 18 arranged on the outside of the box body 10 through a pipeline.

[0038] The hub is placed in the V-groove of the support seat 14, and then the two locking assemblies 20 are operated to lock the two ends of the hub in place. The first cylinder 33 drives the driving assembly 30 and the two first motors 16 and the turning tool 15 to descend to a suitable position. Then, the driving assembly 30 is operated again to drive the two turning tools 15 to approach each other, and the first motor 16 is turned on to drive the two turning tools 15 to rotate, so as to turn the two ends of the hub. The utility model processes both sides of the hub at the same time, saves production time, and improves production efficiency.

[0039] During turning, as the turning tool 15 rotates, the generated metal waste is cut off from the surface of the hub, the dust hood corresponds to the position of the turning tool 15, the dust collector 18 is turned on, and the metal waste is sucked into the dust hood 17, and some of the metal waste may fall onto the filter plate 19 of the recovery chamber 13 through the through groove on the partition 11. During the turning process, collecting metal waste can keep the working environment clean and tidy on the one hand, and save resources on the other hand.

[0040] In this embodiment, according to the specification Figure 2 It can be seen that the driving assembly 30 includes a gantry frame 31, an optical axis 32 and a moving member 35. The gantry frame 31 is horizontally arranged above the support seat 14, and the piston rod end of the first cylinder 33 at the top of the box body 10 is connected to the gantry frame 31; the optical axis 32 is horizontally arranged on the gantry frame 31, and two mounting plates 34 are slidably connected to the optical axis 32, and the two mounting plates 34 are respectively connected to the two first motors 16; the moving member 35 is arranged on the gantry frame 31 and connected to the two mounting plates 34, and is used to drive the two mounting plates 34 to move closer to or away from each other.

[0041] During turning, the positions of the two turning tools 15 relative to the hub are adjusted by operating the driving assembly 30, the distance between the two mounting plates 34 is adjusted by operating the moving member 35, so that the distance between the two mounting plates 34 is greater than the length of the hub, the first cylinder 33 is operated to lower the gantry 31 at the end of the piston rod of the first cylinder 33, and when the turning tool 15 is lowered to a suitable position, the first cylinder 33 is closed; the moving member 35 is operated to make the two mounting plates 34, the first motor 16 and the turning tool 15 approach the two ends of the hub respectively, until they stop at a suitable position, the first motor 16 is turned on, and the turning tool 15 is driven to rotate to turn the two ends of the hub, and after turning is completed, the moving member 35 is operated to drive the two turning tools 15 to separate, and then the first cylinder 33 is operated to drive the gantry 31, the first motor 16 and the turning tool 15 to rise to a safe height.

[0042] In this embodiment, according to the specification Figure 2It can be seen that the movable member 35 includes a rotating shaft 351 arranged on the gantry frame 31, which is parallel to the optical axis 32 and rotates under the drive of the second motor 352. Two threaded sections 353 with opposite rotation directions are arranged on the rotating shaft 351. The two threaded sections 353 are respectively threadedly connected to and penetrate the two mounting plates 34.

[0043] When the second motor 352 drives the rotating shaft 351 to rotate, the threaded segment 353 on the rotating shaft 351 will drive the corresponding mounting plate 34 to move. Since the two threaded segments 353 rotate in opposite directions, their movement will cause the two mounting plates 34 to move relative to each other, so that the two mounting plates 34 move closer to or farther away from each other, and finally drive the two first motors 16 and the turning tool 15 to move closer to or farther away from each other.

[0044] In this embodiment, according to the specification Figure 3 It can be seen that the locking assembly 20 includes a rotating shaft 21, a second cylinder 22, a first gear 23 and a clamping arm 24. Two mutually parallel rotating shafts 21 are connected to the rotating shaft of the support seat 14, and the axial direction of the rotating shaft 21 is parallel to the length direction of the hub. Two mutually meshing first gears 23 are arranged on the two rotating shafts 21; the second cylinder 22 is arranged on the box body 10, and the rack 25 arranged at the end of the piston rod of the second cylinder 22 is meshed with one of the first gears 23; the two clamping arms 24 are symmetrically arranged on both sides of the hub, and the lower end of each clamping arm 24 is connected to the corresponding rotating shaft 21. A V-shaped groove is arranged on the upper end of the clamping arm 24 on the side close to the hub. The inner surface of the V-shaped groove is provided with an anti-slip strip 44.

[0045] During turning, the locking assembly 20 locks the two ends of the hub and starts the two second cylinders 22. The piston rod end of the second cylinder 22 extends and drives the rack 25 to move. Because the rack 25 is engaged with one of the first gears 23, when the rack 25 moves horizontally, it will drive the first gear 23 to rotate. Because the first gear 23 is engaged with another first gear 23, and the two first gears 23 are respectively connected to the two rotating shafts 21, when the rack 25 moves, it will drive the two rotating shafts 21 to rotate synchronously through the two first gears 23. The two clamping arms 24 are respectively connected to the two rotating shafts 21. When the two rotating shafts 21 rotate synchronously, the two clamping arms 24 will be driven to rotate relative to each other, and the hub will be clamped. In order to better allow the clamping arm 24 to fix the hub and increase the friction between the clamping arm 24 and the hub, a V-shaped groove is provided on the upper end of the clamping arm 24 on the side close to the hub, and an anti-slip strip 44 is provided on the inner surface of the V-shaped groove. The anti-slip strip 44 can be some raised structures that can increase the friction coefficient. The anti-slip strip 44 can prevent relative sliding and loosening between them.

[0046] In this embodiment, according to the attached drawings of the specification, a first cooling pipe 41 is provided on the mounting plate 34, one end of the first cooling pipe 41 faces the corresponding turning tool 15, and the other end of the first cooling pipe 41 passes through the box 10 and is connected to the water outlet of the liquid storage tank 42, and the water inlet of the liquid storage tank 42 is connected to the bottom of the box 10 through the second cooling pipe 43. The filter plate 19 is horizontally arranged in the recovery chamber 13, and the upper surface of the filter plate 19 is inclined.

[0047] During the turning process, a large amount of heat will be generated. The first cooling pipe 41 can move with the movement of the turning tool 15. The coolant in the liquid storage tank 42 flushes and cuts the contact area between the turning tool 15 and the hub through the first cooling pipe 41, takes away the heat, reduces the temperature of the cutting area, and maintains the normal operating temperature of the equipment. Cooling the turning tool 15 can appropriately extend its life. After the sprayed coolant flows to the bottom of the box 10, it is filtered through the filter plate 19 and can be recycled again. A discharge port is provided on one side of the box 10 corresponding to the filter plate 19, and a sealing door is provided at the discharge port. A part of the metal scraps flushed by the coolant remains on the filter plate 19. After the equipment has been running for a period of time, the operator opens the sealing door, and the scraper extends to the top of the filter plate 19 to scrape out the metal scraps on the filter plate 19. The inclined upper surface of the filter plate 19 is helpful for cleaning metal scraps.

[0048] It should be noted that, in this patent application, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0049] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A bearing mounting hole turning device for a bicycle hub, characterized in that: include: A box body, wherein a partition arranged horizontally inside the box body divides the box body into a working room and a recovery room from top to bottom, and a plurality of through grooves arranged on the partition body connect the working room and the recovery room; A support seat is vertically arranged on the partition, a V-shaped groove for supporting the hub is arranged on the top of the support seat along the length direction of the hub, and two locking assemblies are symmetrically arranged on both sides of the support seat along the length direction of the hub, for locking the hub in place; Two turning tools are symmetrically arranged on both sides of the support seat in the length direction of the hub, and the two turning tools are respectively driven by two first motors to rotate; A driving assembly, connected to the two first motors respectively, and used to drive the two first motors to move; and Two dust collecting hoods are respectively arranged above the partitions, and the dust collecting hoods are connected with the dust collectors arranged outside the box body through pipelines.

2. A bearing mounting hole turning device for a bicycle hub according to claim 1, characterized in that: The drive assembly comprises: A portal frame is horizontally arranged above the support seat, and the end of the first cylinder piston rod at the top of the box body is connected to the portal frame; An optical axis is horizontally arranged on the portal frame, and two mounting plates are slidably connected thereto, and the two mounting plates are respectively connected to the two first motors; The moving member is arranged on the portal frame and connected with the two mounting plates, and is used for driving the two mounting plates to move closer to or farther from each other.

3. A bearing mounting hole turning device for a bicycle hub according to claim 2, characterized in that: The moving member includes a rotating shaft arranged on the portal frame, which is parallel to the optical axis and rotates under the drive of the second motor. The rotating shaft is provided with two threaded sections with opposite rotation directions, and the two threaded sections are respectively threadedly connected to and penetrate the two mounting plates.

4. A bearing mounting hole turning device for a bicycle hub according to claim 2, characterized in that: The locking assembly comprises: Two mutually parallel rotating shafts are connected to the supporting seat rotating shaft, and the axis direction of the rotating shaft is parallel to the length direction of the hub, and two mutually meshing first gears are arranged on the two rotating shafts; A second cylinder is arranged on the box body, and a rack arranged at the end of the piston rod of the second cylinder is meshed with one of the first gears; Two clamping arms are symmetrically arranged on both sides of the hub, and the lower end of each clamping arm is connected to the corresponding rotating shaft.

5. The bearing mounting hole turning device for a bicycle hub according to claim 2, characterized in that: A first cooling pipe is arranged on the mounting plate, one end of the first cooling pipe faces the corresponding turning tool, the other end of the first cooling pipe passes through the box body and is connected with the water outlet of the liquid storage tank, and the water inlet of the liquid storage tank is connected with the bottom of the box body through the second cooling pipe.

6. A bearing mounting hole turning device for a bicycle hub according to claim 3, characterized in that: The filter plate is horizontally arranged in the recovery chamber, and the upper surface of the filter plate is inclined.

7. A bearing mounting hole turning device for a bicycle hub according to claim 4, characterized in that: A V-shaped groove is arranged on the upper end of the clamping arm on a side close to the hub.

8. A bearing mounting hole turning device for a bicycle hub according to any one of claims 1 or 7, characterized in that: The inner surfaces of the V-shaped grooves are all provided with anti-slip strips.

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