A mandrel on-line single-piece flow anhydrous attrition mechanism

Abstract

This invention relates to the field of waterless vibratory grinding devices for mandrels, and more particularly to a waterless vibratory grinding mechanism for mandrels in online single-piece flow, comprising: a housing, in which a vibratory grinding machine is installed, the vibratory grinding machine having a grinding groove containing abrasive particles; a transport component, comprising a transport structure and a clamping structure, the clamping structure for clamping and moving the mandrel, and the transport structure for transporting the ground mandrel; and a cleaning component for cleaning the ground mandrel during transport. In use, after the mandrel is transported into the housing via the transport structure, the fixing device releases the mandrel, and the clamping structure clamps the mandrel into the grinding groove for grinding by the vibratory grinding machine. During grinding, a rotating device continuously drives the mandrel to rotate, ensuring that the abrasive particles in the grinding groove simultaneously grind both the inner and outer sides of the mandrel, achieving all-around grinding requirements.

Description

Technical Field

[0001] This invention relates to the technical field of waterless vibratory grinding equipment for mandrels, specifically a waterless vibratory grinding mechanism for online single-piece flow of mandrels. Background Technology

[0002] A seatbelt mandrel is a tool used for installing and adjusting car seatbelts. It is typically made of metal and has specially shaped ends to secure the seatbelt's base or buckle. The seatbelt mandrel is designed to ensure the seatbelt maintains the correct position and tension during installation and adjustment for optimal safety performance. As a precision part, the mandrel requires high machining accuracy. Therefore, after production, it often undergoes a waterless vibratory grinding process to remove burrs from its surface. However, existing waterless vibratory grinding machines often require manual removal of the mandrel from the machine and transfer to a cleaning unit to remove residual abrasive and chips. This entire vibratory grinding process involves multiple manual steps, which is time-consuming and labor-intensive. Furthermore, because the mandrel has several holes, the internal curved shape during vibratory grinding prevents the abrasive from evenly covering the entire inner wall surface. This results in insufficient grinding on the outer areas while the inner areas are not adequately treated. Summary of the Invention

[0003] The purpose of this invention is to provide a mandrel-based, single-piece flow, waterless vibratory grinding mechanism to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A mandrel-based, single-piece, waterless vibration testing mechanism includes:

[0006] The box is equipped with a vibratory grinding machine, which is equipped with a grinding tank containing grinding particles.

[0007] A transport assembly, comprising a transport structure and a clamping structure, the clamping structure for clamping and moving the mandrel, and the transport structure for transporting the ground mandrel; and

[0008] A cleaning assembly for cleaning the ground mandrel during transport.

[0009] Preferably, the transport structure includes a conveyor belt, storage blocks, and fixing devices. The conveyor belt is symmetrically arranged on both sides of the box body. The conveyor belt is provided with a plurality of storage blocks. The storage blocks are used to place mandrels. The fixing devices are used to fix the mandrels placed in the storage blocks.

[0010] Preferably, the fixing device includes a fixing block and a fixing push rod, wherein the fixing push rod is disposed on the storage block and is used to drive the fixing block to fix the mandrel.

[0011] Preferably, the clamping structure includes a mounting rod, a rotating motor, a telescopic push rod, a mounting block, a clamping push rod, and a clamping block. The mounting rod is located on the top of the housing. The rotating motor is located on the mounting rod and is used to drive the telescopic push rod to rotate. The mounting block is located at one end of the telescopic push rod. The clamping push rods are symmetrically arranged on the mounting block. The clamping push rods are used to drive the clamping block to clamp the mandrel.

[0012] Preferably, the clamping structure further includes a bonding device and a rotating device, both of which are disposed on the clamping block. The bonding device is used to drive the rotating device and the mandrel to bond when the clamping block clamps the mandrel, and the rotating device is used to drive the mandrel to rotate.

[0013] Preferably, the bonding device includes a telescopic tube, a bonding spring, and a reset push rod. The telescopic tube is disposed in the clamping block, the bonding spring is disposed inside the telescopic tube, the rotating device is disposed at one end of the telescopic tube, and the reset push rod is used to drive the telescopic tube to move.

[0014] Preferably, the rotating device includes a rotating block and a second rotating motor, the second rotating motor being disposed on the telescopic tube and used to drive the rotating block to rotate.

[0015] Preferably, the cleaning assembly includes a jet push rod, a compressed air tank, a pressure relief valve, and a distance sensor. The jet push rod is disposed on the clamping block. The compressed air tank is connected to the pressure relief valve via a pipe. The pressure relief valve is disposed on the top and around the jet push rod. The distance sensor is disposed on the jet push rod.

[0016] Compared with existing technologies, the advantages of this invention are as follows: In use, after the mandrel is transported into the housing via a transport structure, the fixing device releases the mandrel, and the clamping structure clamps it into the grinding tank. The mandrel is then ground by a vibratory grinding machine. During grinding, the rotating device continuously drives the mandrel to rotate, ensuring that the grinding particles in the grinding tank simultaneously grind both the inner and outer sides of the mandrel, achieving comprehensive grinding. This mechanism, by integrating the grinding functions for both the inner and outer surfaces of the mandrel, greatly improves processing efficiency. Operators do not need to change or move the worktable; they only need to adjust the machine settings to complete the treatment of the inner and outer surfaces, saving time and labor costs. Using the same grinding tank and the same type of grinding particles to grind both the inner and outer surfaces of the mandrel ensures consistent processing, eliminating processing differences caused by process changes or different equipment. It is highly practical and worthy of promotion. Attached Figure Description

[0017] Figure 1 This is a schematic cross-sectional view of the present invention;

[0018] Figure 2 This is a schematic diagram of the connection structure between the storage block and the spindle of the present invention;

[0019] Figure 3 This is a schematic diagram of the connection structure between the storage block and the fixed push rod of the present invention;

[0020] Figure 4 This is a schematic diagram of the connection structure between the mounting rod and the telescopic push rod of the present invention;

[0021] Figure 5 This is a schematic cross-sectional view of the mounting block of the present invention;

[0022] Figure 6 This is a schematic cross-sectional view of the telescopic tube structure of the present invention.

[0023] In the diagram: 1. Box body, 2. Vibratory grinding machine, 3. Conveyor belt, 4. Storage block, 5. Fixing block, 6. Fixing push rod, 7. Mounting rod, 8. Rotary motor one, 9. Telescopic push rod, 10. Mounting block, 11. Clamping push rod, 12. Clamping block, 13. Telescopic tube, 14. Fitting spring, 15. Reset push rod, 16. Rotating block, 17. Rotary motor two, 18. Spray push rod, 19. Compressed air tank, 20. Pressure relief valve, 21. Distance sensor, 100. Mandrel. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0025] Please see Figure 1-6 The present invention provides a technical solution:

[0026] A mandrel-based, single-piece, waterless vibration grinding mechanism, as shown in the attached instruction manual. Figure 1 As shown, it includes:

[0027] Box 1 provides an installation location for other components of the mechanism. Box 1 is equipped with a vibratory grinding machine 2. The vibratory grinding machine 2 is an existing technology and can be selected according to the size of the box 1 when in use. The vibratory grinding machine 2 is equipped with a grinding tank, which is used to perform waterless vibratory grinding on the mandrel 100. When in use, alumina particles are set in the grinding tank as grinding particles.

[0028] The transport assembly includes a transport structure and a clamping structure. The clamping structure is used to clamp and move the mandrel 100, and the transport structure is used to transport the ground mandrel 100.

[0029] A cleaning component is used to clean the ground mandrel 100 during transport.

[0030] The transport structure includes a conveyor belt 3, storage blocks 4, and a fixing device. The conveyor belt 3 is arranged on both sides of the box 1 and is used to transport the mandrel 100. The conveyor belt 3 is existing technology and can be directly purchased. The conveyor belt 3 is used to transport the storage blocks 4 on which the mandrel 100 is placed. Several storage blocks 4 are fixedly arranged on the conveyor belt 3. The storage blocks 4 are used to place the mandrel 100. The fixing device is used to fix the mandrel 100 placed on the storage blocks 4. In this embodiment, a gravity sensor is provided in the storage blocks 4 to detect whether there is a mandrel 100 on the storage blocks 4.

[0031] The fixing device includes a fixing block 5 and a fixing push rod 6. The fixing push rod 6 is set on the storage block 4 and is used to drive the fixing block 5 to fix the spindle 100. The fixing block 5 is a rubber block and the fixing push rod 6 is a hydraulic push rod. When the conveyor belt 3 drives the storage block 4 to move below the clamping structure, the fixing push rod 6 will retract to release the fixing of the spindle 100.

[0032] The clamping structure includes a mounting rod 7, a rotating motor 8, a telescopic push rod 9, a mounting block 10, a clamping push rod 11, and a clamping block 12. The mounting rod 7 is located on the top of the housing 1 and is used to mount the rotating motor 8 and the telescopic push rod 9. The rotating motor 8 is mounted on the mounting rod 7, and its output end is connected to the telescopic push rod 9 to drive the telescopic push rod 9 to rotate. The mounting block 10 is fixedly connected to one end of the telescopic push rod 9 and is used to mount the clamping push rod 11 and the clamping block 12. As shown in the attached diagram of the instruction manual, there are four sets of clamping push rods 11 and clamping blocks 12. The four sets of clamping push rods 11 and clamping blocks 12 are symmetrically arranged in pairs on both sides of the mounting block 10. The clamping push rods 11 are symmetrically arranged on the mounting block 10. The clamping push rods 11 are also hydraulic push rods and are used to drive the clamping blocks 12 to clamp the spindle 100. The contact end between the clamping block 12 and the spindle 100 is made of rubber.

[0033] The clamping structure also includes a bonding device and a rotating device. Both the bonding device and the rotating device are disposed on the clamping block 12. The bonding device is used to drive the rotating device to bond with the mandrel 100 when the clamping block 12 clamps the mandrel 100. The rotating device is used to drive the mandrel 100 to rotate.

[0034] The bonding device includes a telescopic tube 13, a bonding spring 14, and a reset push rod 15. The telescopic tube 13 is disposed on the clamping block 12 and is used to protect the bonding spring 14 and the reset push rod 15 inside. The bonding spring 14 is disposed inside the telescopic tube 13. A rotating device is disposed at one end of the telescopic tube 13. The reset push rod 15 is used to drive the telescopic tube 13 to move. The reset push rod 15 is a hydraulic push rod. When no movement command is issued, the reset push rod 15 is in a free movement state and can freely extend and retract with the drive of the bonding spring 14.

[0035] The rotating device includes a rotating block 16 and a rotating motor 17. The rotating block 16 is a cylindrical block made of rubber. The rubber material ensures that when the rotating motor 17 rotates, the rotating motor 17 is set on the telescopic tube 13 and is used to drive the rotating block 16 to rotate. The rotating device is arranged around the clamping block 12 and is used to drive the spindle 100 to rotate.

[0036] The cleaning assembly includes a jet push rod 18, a compressed air tank 19, a pressure relief valve 20, and a distance sensor 21. The jet push rod 18 is mounted on the clamping block 12. The compressed air tank 19 is connected to the pressure relief valve 20 via a pipe. The pipe passes through the clamping block 12 and is connected to the pressure relief valve 20. The pipe is equipped with a telescopic joint, so it will adjust adaptively when the clamping block 12 moves. In this embodiment, the compressed air tank contains compressed air. The pressure relief valve 20 is located on the top and around the jet push rod 18. The distance sensor 21 is mounted on the jet push rod 18. The distance sensor 21 is a reflective infrared distance sensor. Therefore, it can detect the position of the hole in the mandrel 100 by detecting changes in distance (when the hole in the mandrel 100 is not detected, the distance detected by the distance sensor 21 is relatively close; when a large change in distance is detected, it means that the hole in the mandrel 100 is aligned with the jet push rod 18).

[0037] Working principle: During use, the conveyor belt 3 transports the mandrel 100 into the housing 1. When it reaches the set clamping position, the conveyor belt 3 stops. Then, the rotating motor 8 drives the telescopic push rod 9 to rotate. The telescopic push rod 9 drives the clamping block 12 to approach the mandrel 100, and the contraction of the clamping push rod 11 causes the clamping block 12 to clamp the mandrel 100 (during clamping, the contact spring 14 causes the rotating block 16 and the mandrel 100 to come into contact with each other). Then, the rotating motor 8 drives the telescopic push rod 9 to rotate again, and while rotating, it extends and retracts. The push rod 9 retracts, and when it is in a vertical position, it extends and places the mandrel 100 into the grinding tank. At this time, the vibratory grinding machine 2 starts and vibrates the mandrel 100 for grinding. Since the clamping block 12 always clamps the mandrel 100 during grinding, it ensures that the mandrel 100 maintains a stable position and orientation during the vibratory grinding process. Therefore, when the vibratory grinding machine 2 moves the grinding particles (alumina particles), some of the grinding particles can smoothly enter the interior of the mandrel 100 for grinding (subsequent grinding particles entering the mandrel 100) The grinding particles will push out the abrasive particles inside the mandrel 100, thus continuously grinding the inside of the mandrel 100; during grinding, the symmetrically arranged clamping blocks 12 will alternately clamp the mandrel 100 to ensure comprehensive grinding of the mandrel 100 (alternating clamping ensures grinding of the clamping position); during grinding, the rotating motor 17 will drive the rotating block 16 to rotate, so that the mandrel 100 will rotate continuously along the axial direction, thereby enhancing the grinding effect; after use, the telescopic push rod 9 will shorten, and when shortening, the release mechanism set at the top... The pressure valve 20 will open to clean the outside of the spindle 100. During cleaning, the rotating motor 2 17 will drive the rotating block 16 to rotate. After cleaning the outside, the rotating motor 2 17 will continue to drive the spindle 100 to rotate until the distance sensor 21 detects that the spray push rod 18 is aligned with the hole of the spindle 100. Then the rotating motor 2 17 will stop moving. At this time, the spray push rod 18 will extend until the end of the spray push rod 18 equipped with the pressure relief valve 20 is inserted into the spindle 100. Then the pressure relief valve 20 will be activated again to clean the inside of the spindle 100.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mandrel-based, single-piece, waterless vibratory grinding mechanism, characterized in that, include: The box is equipped with a vibratory grinding machine, which is equipped with a grinding tank containing grinding particles. A transport assembly, comprising a transport structure and a clamping structure, wherein the clamping structure is used to clamp and move the mandrel, and the transport structure is used to transport the ground mandrel; as well as A cleaning assembly for cleaning the ground mandrel during transport; The transport structure includes a conveyor belt, storage blocks, and a fixing device. The conveyor belt is symmetrically arranged on both sides of the box. The conveyor belt is provided with a plurality of storage blocks. The storage blocks are used to place the mandrels. The fixing device is used to fix the mandrels placed in the storage blocks. The clamping structure includes a mounting rod, a rotating motor, a telescopic push rod, a mounting block, a clamping push rod, and a clamping block. The mounting rod is located on the top of the housing. The rotating motor is located on the mounting rod and is used to drive the telescopic push rod to rotate. The mounting block is located at one end of the telescopic push rod. The clamping push rods are symmetrically arranged on the mounting block. The clamping push rods are used to drive the clamping block to clamp the mandrel. The clamping structure further includes a bonding device and a rotating device. Both the bonding device and the rotating device are disposed on the clamping block. The bonding device is used to drive the rotating device and the mandrel to bond when the clamping block clamps the mandrel. The rotating device is used to drive the mandrel to rotate. The bonding device includes a telescopic tube, a bonding spring, and a reset push rod. The telescopic tube is disposed in the clamping block, the bonding spring is disposed inside the telescopic tube, the rotating device is disposed at one end of the telescopic tube, and the reset push rod is used to drive the telescopic tube to move. The cleaning assembly includes a jet push rod, a compressed air tank, a pressure relief valve, and a distance sensor. The jet push rod is disposed on the clamping block. The compressed air tank is connected to the pressure relief valve via a pipe. The pressure relief valve is disposed on the top and around the jet push rod. The distance sensor is disposed on the jet push rod.

2. The mandrel online single-piece flow waterless vibration grinding mechanism according to claim 1, characterized in that: The fixing device includes a fixing block and a fixing push rod. The fixing push rod is disposed on the storage block and is used to drive the fixing block to fix the mandrel.

3. The mandrel online single-piece flow waterless vibration grinding mechanism according to claim 1, characterized in that: The rotating device includes a rotating block and a second rotating motor. The second rotating motor is disposed on the telescopic tube and is used to drive the rotating block to rotate.

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