Expanding and supporting type positioning and clamping device for motorcycle gear machining

Abstract

The utility model discloses an expanding and supporting type positioning and clamping device for motorcycle gear machining, and belongs to the technical field of clamping devices. The expanding and supporting type positioning and clamping device for motorcycle gear machining comprises a telescopic cylinder, one end of the telescopic cylinder communicates with a conical sleeve, and one end of the conical sleeve communicates with a fixed cylinder; the expanding and supporting assembly is arranged outside the fixing cylinder in a cross shape, the expanding and supporting assembly comprises a supporting plate, the side, close to the fixing cylinder, of the supporting plate is connected with an ejector rod and a limiting rod, and through holes matched with the ejector rod and the limiting rod are formed in the outer wall of the fixing cylinder; one end of the ejector rod extends into the fixed cylinder and is connected with an abutting block, the outer wall of the abutting block is in contact with one end of the telescopic cylinder, the outer wall of the ejector rod is sleeved with a spring, the spring is located between the abutting block and the fixed cylinder, the telescopic cylinder comprises an outer cylinder, and a square hole is formed in the outer cylinder.

Description

Motorcycle gear machining expansion type positioning and clamping device Technical Field

[0001] This utility model relates to the field of clamping device technology, specifically to an expansion-type positioning clamping device for motorcycle gear processing. Background Technology

[0002] This describes a mechanical process for achieving specific structures and precision in gears. Gears are core transmission components in automotive motion, and their machining quality directly impacts the vibration, noise, and reliability of the entire vehicle assembly. Sometimes, it can even become a key factor restricting product improvement. A search revealed a Chinese patent with authorization announcement number CN216632882U, which discloses a pneumatic fixture for a CNC grinding machine used for gear grinding. This pneumatic fixture includes an inner side plate of the CNC grinding machine, mounted on one inner wall of the machine. It also includes: a first cylinder connected to the inner side plate via a first connecting plate, with its output end connected to a first clamping plate via a first linkage frame; and a second cylinder connected to the inner side plate via a second connecting plate, with its output end connected to a second clamping plate via a second linkage frame. The pneumatic chuck for CNC grinding machines provided by this utility model uses pneumatic means to reverse expand and clamp the gear workpiece, thereby improving the clamping tightness of the gear workpiece and the accuracy during the processing, and thus facilitating its use.

[0003] However, in actual use, this solution only expands and fixes the gear from the top and bottom sides, so it is always under longitudinal force, resulting in uneven force distribution on the gear. If applied to gears with insufficient structural strength, it will directly cause damage to the gear. Summary of the Invention

[0004] To address the problem that existing clamping devices can easily damage gears, this invention provides an expansion-type positioning and clamping device for motorcycle gear processing.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows:

[0006] A motorcycle gear machining expansion-type positioning and clamping device includes a telescopic cylinder, one end of which is connected to a conical sleeve, and one end of which is connected to a fixed cylinder; an expansion assembly, which is arranged in a cross shape outside the fixed cylinder, the expansion assembly including a support plate, a push rod and a limiting rod respectively connected to the support plate on the side near the fixed cylinder, the outer wall of the fixed cylinder having through holes that match the push rod and the limiting rod, one end of the push rod extending into the interior of the fixed cylinder and connected to a stop block, the outer wall of the stop block contacting one end of the telescopic cylinder, and a spring sleeved on the outer wall of the push rod, the spring being located between the stop block and the fixed cylinder.

[0007] Furthermore, the telescopic cylinder includes an outer cylinder with a square hole inside. A slider is slidably connected inside the square hole. One end of the slider is connected to a push-pull rod. One end of the push-pull rod extends into the interior of the fixed cylinder and is connected to a conical top block. The outer wall of the conical top block is in contact with the outer wall of the abutment block.

[0008] The beneficial effect of adopting the above-mentioned further solution is that the slider drives the cone top block to move through the push-pull rod, thereby pushing the stop block and realizing the precise expansion of the expansion component.

[0009] Furthermore, a screw hole is provided on one side of the slider, and a screw rod is connected to the internal thread of the screw hole.

[0010] The advantage of adopting the above-mentioned further solution is that by rotating the screw, the slider can be moved within the square hole, thereby enabling it to adjust the expansion assembly.

[0011] Furthermore, one end of the telescopic cylinder is connected to a cylinder cover, and a motor is installed on one side of the cylinder cover. The output end of the motor is connected to one end of the screw for transmission.

[0012] The beneficial effect of adopting the above-mentioned further solution is that the motor drives the screw to rotate through transmission, thereby driving the slider to move, realizing the automated control of the expansion component.

[0013] Furthermore, the cylinder cover includes a cover body, and a through hole is provided at the center of the cover body, and the output end of the motor matches the inner wall of the through hole.

[0014] The beneficial effect of adopting the above-mentioned further solution is to ensure that the motor power can be accurately and stably transmitted to the screw, and to reduce energy loss and deviation during the transmission process.

[0015] Furthermore, bolts are inserted along the sides of the cover, and the cover is connected to one end of the telescopic cylinder by the bolts.

[0016] The advantages of adopting the above-mentioned further solution are that it can withstand various loads during motor operation and device operation. Secondly, when it is necessary to maintain, repair or replace parts inside the device, the bolts can be easily removed, the cylinder cover and the telescopic cylinder can be separated, which facilitates the maintenance and repair of the equipment.

[0017] Furthermore, a base plate is installed at the bottom end of the telescopic cylinder, and positioning holes are provided at the corners of the base plate.

[0018] The advantage of adopting the above-mentioned further solution is that it can be fixedly installed with the processing equipment or worktable through the positioning hole, ensuring that the device remains stable during the processing and will not shift due to vibration or other factors.

[0019] Furthermore, one end of the screw hole extends into the interior of the push-pull rod.

[0020] The advantage of adopting the above-mentioned further solution is that by increasing the length of the screw hole, the range of motion of the slider inside the square hole can be increased.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This type of expanding positioning and clamping device for motorcycle gear processing, through the cooperation of a telescopic cylinder, a conical sleeve, and an expanding assembly, enables the device to achieve a more uniform clamping function for the gear pair. Specifically, the conical top block inside the telescopic cylinder pushes the stop block, causing the support plate of the expanding assembly to expand outward, which can stably position and clamp the motorcycle gear. Compared with traditional clamping methods, the force is more uniform, which can effectively prevent the gear from shifting or shaking during processing, ensuring processing accuracy. Furthermore, the spring setting allows the expanding assembly to automatically reset when not in use, facilitating gear loading and unloading and improving processing efficiency. Attached Figure Description

[0023] Figure 1 is a three-dimensional schematic diagram of the expansion-type positioning and clamping device for motorcycle gear processing provided by this utility model.

[0024] Figure 2 is a schematic diagram of the unfolded telescopic cylinder structure of the expanded positioning and clamping device for motorcycle gear processing provided by this utility model.

[0025] Figure 3 is a cross-sectional view of the expansion component of the expansion type positioning and clamping device for motorcycle gear processing provided by this utility model.

[0026] Figure 4 is a schematic diagram of the expansion component of the expansion type positioning and clamping device for motorcycle gear processing provided by this utility model.

[0027] Figure 5 is a schematic diagram of the cylinder cover structure of the expansion-type positioning and clamping device for motorcycle gear processing provided by this utility model.

[0028] In the diagram: 100, telescopic cylinder; 1001, outer cylinder; 1002, square hole; 1003, slider; 1004, screw hole; 1005, push-pull rod; 1006, conical top block; 1007, screw rod; 200, conical sleeve; 300, fixed cylinder; 400, expansion assembly; 4001, support plate; 4002, top rod; 4003, limit rod; 4004, stop block; 4005, spring; 500, cylinder cover; 5001, cover body; 5002, through hole; 5003, bolt; 600, motor; 700, base plate; 800, positioning hole. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please refer to Figures 1-5. This utility model provides a technical solution: a motorcycle gear processing expansion-type positioning and clamping device, including a telescopic cylinder 100, one end of which is connected to a conical sleeve 200, and one end of the conical sleeve 200 is connected to a fixed cylinder 300; an expansion assembly 400, which is arranged in a cross shape outside the fixed cylinder 300, including a support plate 4001, on the side of the support plate 4001 near the fixed cylinder 300 respectively connected to a push rod 4002 and a limiting rod 4003, the outer wall of the fixed cylinder 300 respectively having through holes that match the push rod 4002 and the limiting rod 4003, and one end of the push rod 4002 extending into the fixed cylinder 300. Inside, a stop block 4004 is connected. The outer wall of the stop block 4004 contacts one end of the telescopic cylinder 100. A spring 4005 is sleeved on the outer wall of the push rod 4002. The spring 4005 is located between the stop block 4004 and the fixed cylinder 300. The stop block 4004 is pushed by the conical top block 1006 inside the telescopic cylinder 100, which drives the support plate 4001 of the expansion assembly 400 to expand outward. This can stably position and clamp the motorcycle gear. Compared with the traditional clamping method, the force is more even, which can effectively prevent the gear from shifting or shaking during processing, ensuring processing accuracy. Furthermore, the spring 4005 allows the expansion assembly to automatically reset when not in use, facilitating gear loading and unloading and improving processing efficiency. The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] As an embodiment of this utility model, the telescopic cylinder 100 further includes an outer cylinder 1001, with a square hole 1002 inside the outer cylinder 1001. A slider 1003 is slidably connected inside the square hole 1002. One end of the slider 1003 is connected to a push-pull rod 1005. One end of the push-pull rod 1005 extends into the interior of the fixed cylinder 300 and is connected to a conical top block 1006. The outer wall of the conical top block 1006 fits against the outer wall of the abutment block 4004. The slider 1003 drives the conical top block 1006 to move through the push-pull rod 1005, thereby pushing the abutment block 4004 to achieve precise expansion of the expansion assembly.

[0032] As an embodiment of this utility model, a screw hole 1004 is further provided on one side of the slider 1003. A screw rod 1007 is threadedly connected inside the screw hole 1004. By rotating the screw rod 1007, the slider 1003 can move within the square hole 1002, thereby enabling it to adjust the expansion assembly 400.

[0033] As an embodiment of this utility model, one end of the telescopic cylinder 100 is connected to a cylinder cover 500, and a motor 600 is installed on one side of the cylinder cover 500. The output end of the motor 600 is connected to one end of the screw 1007 for transmission. The motor 600 drives the screw 1007 to rotate through transmission, thereby driving the slider 1003 to move, so as to realize the automated control of the expansion component.

[0034] As an embodiment of this utility model, the cylinder cover 500 further includes a cover body 5001, and a through hole 5002 is provided at the center of the cover body 5001. The output end of the motor 600 matches the inner wall of the through hole 5002, ensuring that the motor power can be accurately and stably transmitted to the screw 1007, reducing energy loss and deviation during the transmission process.

[0035] As an embodiment of this utility model, further, bolts 5003 are inserted through the side of the cover 5001, and the cover 5001 is connected to one end of the telescopic cylinder 100 through the bolts 5003. It can withstand various loads during the operation of the motor 600 and the working process of the device. Secondly, when it is necessary to maintain, repair or replace parts inside the device, the bolts can be easily removed to separate the cover and the telescopic cylinder, which facilitates the maintenance and repair of the equipment.

[0036] As an embodiment of this utility model, a base plate 700 is further installed at the bottom end of the telescopic cylinder 100. The base plate 700 has positioning holes 800 at its corners. The positioning holes 800 can be used to fix the device to the processing equipment or workbench to ensure that the device remains stable during processing and will not shift due to vibration or other factors.

[0037] As an embodiment of this utility model, one end of the screw hole 1004 extends into the interior of the push-pull rod 1005. By increasing the length of the screw hole 1004, the range of movement of the slider 1003 within the square hole 1002 can be increased.

[0038] Specifically, the working principle of this type of expanding positioning and clamping device for motorcycle gear processing is as follows: During use, the motor 600 starts, and its output drives the screw 1007 to rotate. The screw engages with the threaded hole 1004 on the slider 1003, driving the slider to slide within the square hole 1002. The slider moves the conical top block 1006 via the push-pull rod 1005. The conical top block pushes the abutment block 4004, overcoming the elastic force of the spring 4005, causing the push rod 4002 to drive the support plate 4001 to expand outward along the through hole on the outer wall of the fixed cylinder 300. The cross-shaped support plates apply pressure to the inner wall of the motorcycle gear from multiple directions, achieving stable positioning and clamping, ensuring the gear remains stationary during processing and improving processing accuracy. After processing, the motor reverses, the screw drives the slider to move in the opposite direction, the thrust of the conical top block on the abutment block disappears, the spring 4005 returns to its original deformation, driving the push rod and support plate to retract and reset, facilitating gear disassembly. The device is fixed to the processing equipment through the positioning hole 800 of the base plate 700. The cylinder cover 500 is connected to the telescopic cylinder 100 through bolts 5003 to ensure stable power transmission of the motor and safe operation of the equipment, while facilitating later maintenance and repair.

Claims

1. An expanding type positioning and clamping device for motorcycle gear processing, characterized in that, include: A telescopic cylinder (100), one end of which is connected to a conical sleeve (200), and the other end of which is connected to a fixed cylinder (300); an expansion assembly (400), which is arranged in a cross shape outside the fixed cylinder (300), the expansion assembly (400) including a support plate (4001), the support plate (4001) having a top rod (4002) and a limiting rod (4003) respectively connected on the side near the fixed cylinder (300), the fixed cylinder... The outer wall of the fixed cylinder (300) is provided with through holes that match the top rod (4002) and the limiting rod (4003). One end of the top rod (4002) extends into the interior of the fixed cylinder (300) and is connected to a stop block (4004). The outer wall of the stop block (4004) contacts one end of the telescopic cylinder (100). A spring (4005) is sleeved on the outer wall of the top rod (4002). The spring (4005) is located between the stop block (4004) and the fixed cylinder (300).

2. The expanding positioning and clamping device for motorcycle gear processing according to claim 1, characterized in that, The telescopic cylinder (100) includes an outer cylinder (1001), the outer cylinder (1001) has a square hole (1002) inside, a slider (1003) is slidably connected inside the square hole (1002), one end of the slider (1003) is connected to a push-pull rod (1005), one end of the push-pull rod (1005) extends into the interior of the fixed cylinder (300) and is connected to a conical top block (1006), the outer wall of the conical top block (1006) is in contact with the outer wall of the abutment block (4004).

3. The expanding positioning and clamping device for motorcycle gear processing according to claim 2, characterized in that, A screw hole (1004) is provided on one side of the slider (1003), and a screw rod (1007) is threaded into the screw hole (1004).

4. The expanding positioning and clamping device for motorcycle gear processing according to claim 3, characterized in that, One end of the telescopic cylinder (100) is connected to a cylinder cover (500), and a motor (600) is installed on one side of the cylinder cover (500). The output end of the motor (600) is connected to one end of the screw (1007) for transmission.

5. The expanding positioning and clamping device for motorcycle gear processing according to claim 4, characterized in that, The cylinder cover (500) includes a cover body (5001), and a through hole (5002) is provided at the center of the cover body (5001). The output end of the motor (600) matches the inner wall of the through hole (5002).

6. The expanding positioning and clamping device for motorcycle gear processing according to claim 5, characterized in that, Bolts (5003) are inserted through the side of the cover (5001), and the cover (5001) is connected to one end of the telescopic cylinder (100) by the bolts (5003).

7. The expanding positioning and clamping device for motorcycle gear processing according to claim 1, characterized in that, The bottom end of the telescopic cylinder (100) is equipped with a base plate (700), and the corner of the base plate (700) is provided with positioning holes (800).

8. The expanding positioning and clamping device for motorcycle gear processing according to claim 3, characterized in that, One end of the screw hole (1004) extends into the interior of the push-pull rod (1005).

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