A joint inner wall polishing device and quick release joint with sealing structure

Abstract

The application belongs to the technical field of part grinding, and particularly relates to a joint inner wall polishing equipment and a quick-release joint with a sealing structure. In view of the problem that the polishing equipment in the prior art is not equipped with a device capable of quickly detecting whether a part is centered, the following scheme is proposed. The polishing equipment comprises a joint module and a base. The base comprises a bottom plate with an inclined surface reserved on an upper surface and a back plate. Side guards and a main box are arranged at the left and right ends of the base. A polishing motor is arranged in the middle of the side guard and can move horizontally left and right towards the side close to the main box. A clamping mechanism and a centering module are fixed to the side of the main box close to the polishing motor. The centering module comprises a main shaft rod. The application can interrupt the polishing at any time to detect the rifling centering state of the joint module, so as to ensure the polishing precision.

Description

Technical Field

[0001] This invention relates to the field of parts grinding technology, and in particular to a joint inner wall grinding device and a quick-release joint with a sealing structure. Background Technology

[0002] Pipe fittings are core components for fluid transmission and mechanical connections, widely used in automotive, aerospace, and other fields. High-end applications require extremely high internal wall roughness. After initial processing, burrs, oxide scale, and other defects may remain on the inner wall, potentially causing safety hazards. Therefore, internal wall polishing is a crucial finishing process to ensure product quality.

[0003] With the transformation of the manufacturing industry towards high-end and intelligent manufacturing, and with my country currently making every effort to promote the development of the intelligent manufacturing equipment industry, its core technologies provide important support for the upgrading of hose fitting inner wall grinding equipment, and are expected to solve the inherent defects of traditional equipment. According to research, the existing equipment used for grinding the inner wall of pipe fittings is usually just a three-jaw centering device with a grinding setting. Such grinding equipment is not equipped with a device that can quickly detect whether the parts are aligned, and it is not suitable for parts with high grinding precision requirements. Summary of the Invention

[0004] To overcome the fact that existing clamping mechanisms lack equipment for quickly detecting whether the clamped parts are aligned, resulting in a significant time commitment for alignment adjustments during pre-processing and a lack of equipment for quickly detecting part misalignment during processing, thus greatly reducing the final machining accuracy of the parts:

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] According to a first aspect of the invention,

[0007] This invention provides a joint inner wall grinding device, including a joint module and a base. The base includes a bottom plate with a pre-reserved inclined surface on the upper surface and a back plate. Side guard plates and a main unit box are respectively provided at the left and right ends of the base. A grinding motor is provided in the middle of the side guard plate. The grinding motor can move horizontally left and right towards the side closer to the main unit box. A clamping mechanism and a centering module are fixed on the side of the main unit box close to the grinding motor. The centering module includes a main shaft.

[0008] The diameter of the main spindle is smaller than the inner diameter of the connector module. The outer circumference of the end of the main spindle near the grinding motor has multiple rectangular slots that are centrally symmetrically distributed. Each rectangular slot has a hinged rod. A screw is reserved at the end of the main spindle near the grinding motor. A compression spring and a ball head are fixed together in sequence at the swing end of the hinged rod. A support block is also reserved at the swing end of the hinged rod. A pressure sensor is fixed on the side of the support block near the ball head. An expansion mechanism is screwed onto the screw.

[0009] A further feature of this invention is that the main shaft is slidably inserted into the middle of the main housing and is coaxially arranged with the output shaft of the grinding motor; the diameter of the screw is smaller than that of the main shaft and is coaxial with it; the expansion mechanism includes an adjustment knob screwed onto the screw, and an annular anti-disengagement groove is provided on the side of the adjustment knob near the hinge rod, a top rod is slidably inserted into each rectangular groove, and a triangular block that can extend into the bottom of the support block is reserved at the end of the top rod near the hinge rod;

[0010] The length of the rectangular groove is parallel to the axis of the main shaft, ensuring that the subsequent hinge rod can be fully retracted into the rectangular groove after unfolding. Furthermore, the end of the top rod near the adjustment knob is fixed with an L-shaped locking piece that extends into the annular anti-detachment groove. The outer wall of the L-shaped locking piece and the inner wall of the annular anti-detachment groove form a clearance fit, creating a stable sliding connection structure. The core function of this design is that when the adjustment knob is rotated, the rotational motion is converted into an axial thrust on the top rod through the cooperation of the annular anti-detachment groove and the L-shaped locking piece, thus smoothly pushing the hinge rod to unfold or retract, while effectively preventing the top rod from detaching from the adjustment knob. An L-shaped rope fixing block is fixed at the bottom of the rectangular groove, away from the ball head, near the hinge shaft. A spring rope is fixed to the top of the L-shaped rope fixing block. This spring rope is always in a pre-tensioned state. When the adjustment knob is rotated in the opposite direction, the triangular block at the end of the top rod retracts from the end of the hinge rod, allowing the spring rope to quickly release its elastic potential energy, pulling the hinge rod back to its initial position without manual intervention.

[0011] A further feature of this invention is that the outer diameter of the adjusting knob is smaller than the outer diameter of the main spindle, and the width of the hinge rod is equal to the depth of the rectangular groove. When the hinge rod retracts into the rectangular groove, its surface remains flush with the outer surface of the main spindle. This ensures that when no inspection is being performed, there are no protrusions on the outer surface of the main spindle, allowing the main spindle to freely and smoothly retract or advance from the connector module. This avoids collisions, jamming, or scratches between protrusions and the inner wall of the connector module, protecting the structural integrity of the main spindle and the connector module, ensuring the smoothness of the inspection operation, and improving the operational stability of the equipment.

[0012] A further feature of the present invention is that a telescopic rod is fixed near the center of the side of the main housing away from the grinding motor, and the extension direction of the telescopic rod is parallel to that of the main shaft. The end of the extension rod is fixed to the main shaft through a connector, thereby enabling synchronous movement with it.

[0013] A further feature of this invention is that a sliding support frame is provided above the base plate of the machine base, and a high-precision electric slider is installed at the top of the sliding support frame. This electric slider is driven by a servo motor and can achieve precise horizontal axial movement with a movement accuracy of millimeters, meeting the needs of precision grinding operations. The grinding motor is fixed to the upper surface of the electric slider by bolts. An arc-shaped top cover is hinged to the top of the rear panel. The arc-shaped top cover can be freely rotated around the hinge, facilitating the inspection and maintenance of the internal components of the equipment. A sliding door is slidably connected between the side guard plate and the front of the main unit box via a slide rail. The sliding door can be flexibly pushed and pulled along the slide rail to open and close the equipment's working area. It is worth noting that both the sliding door and the arc-shaped top cover are made of high-transparency tempered glass. This material not only has good pressure resistance and impact resistance, but also allows for visualization of the working area, making it easy for operators to observe the grinding operation in real time. At the same time, it can effectively prevent waste chips and metal dust generated during the grinding process from splashing everywhere, avoiding pollution of the working environment. It is especially suitable for cleanrooms required for the production of precision instruments, ensuring product processing quality and workshop cleanliness.

[0014] A further feature of this invention is that the clamping mechanism includes cantilever fixing rods fixed to the side of the main unit housing and symmetrically distributed about the main shaft. A common ring-shaped support base ring is fixed to one end of each cantilever fixing rod near the grinding motor. The outer circumference of the support base ring has three symmetrically distributed cross-sections, each with concentrically distributed sliding holes. An anti-torsion rod is slidably inserted into each sliding hole, and each anti-torsion rod has a centrally symmetrically distributed hinge frame two fixed to its end away from the main shaft. A hinge frame one is fixed to the side of the support base ring near the center of each sliding hole, and a Y-shaped pressure rod is rotatably connected to the top of each hinge frame one. The rod has a strip-shaped hole and an arc-shaped clamp at both ends. The end of the hinge frame away from the anti-torsion sliding rod has a pressure shaft that passes through the strip-shaped hole. The axis of the main shaft is located on the surface swept by the Y-shaped pressure rod during movement. A limit ring is fixed on the side of the bearing base ring away from the hinge frame. A rotating worm gear is rotatably sleeved on the outer wall of the limit ring. Each anti-torsion sliding rod has a wear-resistant convex shaft that extends horizontally toward the rotating worm gear. A variable-diameter sliding hole adapted to the wear-resistant convex shaft is opened on the surface of the rotating worm gear. Two shaft brackets are fixed near the rotating worm gear on the back plate of the base. The two shaft brackets are rotatably connected to the same worm, and the worm meshes with the rotating worm gear. A drive motor is installed at the bottom end of the worm.

[0015] A further feature of this invention is that each of the three arc-shaped clamping plates has a screw hole at the end away from the rotating worm gear. A control panel for controlling the drive motor and telescopic rod is located on the front of the main unit near the top. The pressure sensor is connected to the controller input terminal in the control panel via a signal line, thereby displaying the pressure signal on the display screen of the control panel. When it is necessary to grind the outer wall of a small-diameter pipe, the extension rod can be inserted into each screw hole to open and fix the small-diameter pipe from the inside out.

[0016] A further feature of the present invention is that a plurality of hinge frames one are respectively fixed on one side near the middle, and hinge frames three are arranged in a centrally symmetrical manner. Each hinge frame three is provided with a grooved fixed pulley at one end near the main shaft. The grooved fixed pulley abuts against the outer wall of the main shaft, thereby assisting the overall horizontal advancement and retraction of the centering module.

[0017] According to a second aspect of the invention,

[0018] This invention discloses a quick-release connector with a sealing structure. The connector module has an overall tubular structure, and a retaining step is provided on the inner circumference of the connector module near one end. A sealing ring is provided on the side of the retaining step near the larger diameter. A tapered sleeve for pressing against the sealing ring is slidably connected to the inner circumference of the connector module near the retaining step. A kit body is also slidably connected to the end of the connector module near the larger diameter. The kit body has multiple notches at the end near the tapered sleeve. The outer wall of the kit has a protrusion, and the end of the kit body away from the protrusion has an annular retaining ring. The diameter of the annular retaining ring is larger than the inner diameter of the connector module. The outer wall of the notched section of the kit body is fitted with a tightening retaining ring. The outer wall of the connector module near the larger diameter end has an external thread, and a ring-shaped tightening screw ring is screwed into the external thread. When connecting the pipe, the head of the hose inserted inside the kit body can be tightly pressed against the end of the tapered sleeve by slowly rotating the tightening screw ring. Then, the sealing ring can be used to complete the sealing and prevent detachment.

[0019] A further feature of the present invention is that the inner diameter of the tightening and turning ring is smaller than the diameter of the annular retaining ring, and the tightening and turning ring is made of a wear-resistant material.

[0020] The beneficial effects of this invention are as follows:

[0021] 1. A centering module, located behind three arc-shaped clamping plates, can be inserted into the connector module at any time to detect the rifling centering status. When monitoring the rifling centering status of the newly clamped connector module is required, simply turn the adjustment knob. This will open all the hinge rods under the action of the push rod. When the ball head simultaneously presses against the inner wall of the connector module, if the data from all pressure sensors are consistent, it indicates that the connector module is in the rifling centering state. Otherwise, the clamping mechanism needs to be adjusted further. After checking the rifling centering status, simply restore the three hinge rods and retract the whole assembly. The rifling centering status of the connector module can be checked at any time during grinding to ensure grinding accuracy.

[0022] 2. Through the designed clamping mechanism, in conjunction with three extended Y-shaped pressure rods, precise extension of the clamping part can be achieved, cleverly extending the clamping position of the connector module to an area far away from the main body of the clamping mechanism, completely avoiding structural obstruction by the main body of the clamping mechanism; it also optimizes the convenience of operation and ensures the accuracy of operation; it can also significantly increase the operating space around the connector module, completely eliminating the obstruction of the main body of the clamping mechanism to the operation, and the operator can also effectively avoid collisions and scratches between the connector module and the main body of the clamping mechanism during the handling and placement process, protecting the surface accuracy and structural integrity of the connector module and reducing workpiece wear; moreover, after the clamping part is far away from the main body of the clamping mechanism, the overall exposure of the connector module is greatly improved, and the operator can clearly observe the installation posture of the connector module and its alignment with the spindle and grinding mechanism, which is convenient for accurately detecting whether the installation position of the connector module is offset or whether the coaxiality meets the standard, and at the same time, the angle and position of the connector module can be quickly and conveniently adjusted.

[0023] 3. With the tapered sleeve, when connecting the hose, simply rotate the tightening ring slowly to press the hose head inserted inside the kit body tightly against the end of the tapered sleeve, and then cooperate with the sealing ring to complete the sealing and prevent it from falling off. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of a joint inner wall grinding device proposed in this invention;

[0025] Figure 2 This is a schematic diagram of the structure of a joint inner wall grinding device proposed in this invention before grinding;

[0026] Figure 3 This is a schematic diagram of the overall structure of the clamping mechanism and centering module in a joint inner wall grinding device proposed in this invention;

[0027] Figure 4 This is a schematic diagram of the centering module in a joint inner wall grinding device proposed in this invention during centering detection;

[0028] Figure 5 This is a top view of the clamping mechanism and centering module in a joint inner wall grinding device proposed in this invention;

[0029] Figure 6 This invention provides a joint inner wall grinding device. Figure 5 Schematic diagram of the cross-sectional structure along line AA;

[0030] Figure 7 This invention provides a joint inner wall grinding device. Figure 6 Enlarged structural diagram at point B;

[0031] Figure 8 This invention provides a joint inner wall grinding device. Figure 7 Enlarged structural diagram at point C;

[0032] Figure 9 This is a schematic diagram of the structure of the centering module after shrinkage in a joint inner wall grinding device proposed in this invention;

[0033] Figure 10 This is a schematic diagram of the structure of the bearing base ring in a joint inner wall grinding device proposed in this invention;

[0034] Figure 11 This is a half-sectional three-dimensional structural diagram of a quick-release connector with a sealing structure proposed in this invention;

[0035] Figure 12 An exploded view of a quick-release connector with a sealing structure proposed in this invention;

[0036] Figure 13 This is a schematic diagram of the overall structure of a quick-release connector with a sealing structure proposed in this invention.

[0037] In the diagram: 1. Base; 2. Side guard plate; 3. Arc-shaped top cover; 4. Telescopic rod; 5. Control panel; 6. Main unit; 7. Sliding door; 8. Clamping mechanism; 801. Cantilever fixing rod; 802. Rotating worm gear; 803. Variable diameter sliding hole; 804. Hinge frame one; 805. Y-shaped pressure rod; 806. Arc-shaped clamping plate; 807. Bearing base ring; 808. Anti-torsion sliding rod; 809. Hinge frame two; 810. Hinge frame three; 811. Sliding insertion hole; 9. Centering module; 901. Rectangular groove; 9 02. L-shaped rope fixing block; 9021. Spring rope; 903. Hinge rod; 904. Ball head; 905. Pressure sensor; 906. Top rod; 907. Adjustment knob; 908. Screw; 909. Compression spring; 10. Grinding motor; 11. Sliding support frame; 12. Connector module; 1201. Backing step; 13. Shaft bracket; 14. Worm gear; 15. Kit body; 16. Tapered sleeve; 17. Sealing ring; 18. Tightening retaining ring; 19. Hoses; 20. Tightening screw ring. Detailed Implementation

[0038] The technical solutions 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.

[0039] In this embodiment, refer to Figure 1-10 A joint inner wall grinding device includes a joint module 12 and an L-shaped support plate structure base 1. The base 1 includes a bottom plate with a pre-reserved inclined surface on the upper surface and a back plate. The left and right ends of the base 1 are respectively provided with parallel side guard plates 2 and a main body box 6. A grinding motor 10 is provided in the middle of the side guard plate 2. The grinding motor 10 can move horizontally left and right to the side closer to the main body box 6. The main body box 6 is fixed with a clamping mechanism 8 and a centering module 9 on the side close to the grinding motor 10. The centering module 9 includes a main shaft.

[0040] The diameter of the spindle is smaller than the inner diameter of the connector module 12. Multiple rectangular slots 901 are centrally symmetrically distributed on the outer circumference of the end of the spindle near the grinding motor 10. Each rectangular slot 901 is hinged with a hinge rod 903. A screw 908 is reserved at the end of the spindle near the grinding motor 10. A compression spring 909 and a ball head 904 connected together are fixed to the swing end of the hinge rod 903 in sequence. A support block is also reserved at the swing end of the hinge rod 903. A pressure sensor 905 is fixed on the side of the support block near the ball head 904. An expansion mechanism is screwed onto the screw 908 to open the hinge rod 903 from the rectangular slot 901.

[0041] When it is necessary to monitor the rifling centering status of the clamped connector module 12, simply turn the adjustment knob 907 to limit the axial rotation of the push rod 906 using the rectangular groove 901. At this time, all the hinge rods 903 can be opened under the action of the push rod 906. When the ball head 904 presses against the inner wall of the connector module 12 at the same time, if the data fed back by all the pressure sensors 905 are consistent, it means that the connector module 12 is in the rifling centering state. Otherwise, the clamping mechanism 8 needs to be adjusted. After checking the rifling centering status, simply restore the three hinge rods 903 and retract them as a whole. The rifling centering status of the connector module 12 can be checked at any time during grinding to ensure grinding accuracy.

[0042] Reference Figures 7-9 The main spindle is slidably inserted into the middle of the main housing 6 and is coaxial with the output shaft of the grinding motor 10; the diameter of the screw 908 is smaller than that of the main spindle and is coaxial with it; the expansion mechanism includes an adjustment knob 907 screwed onto the screw 908, and the adjustment knob 907 is provided with an annular anti-detachment groove on the side near the hinge rod 903. A top rod 906 is slidably inserted into each rectangular groove 901, and a triangular block that can extend into the bottom of the support block is reserved at the end of the top rod 906 near the hinge rod 903;

[0043] The length of the rectangular groove 901 is parallel to the axis of the main shaft, ensuring that the subsequent hinge rod 903 can fully retract into the rectangular groove 901 after unfolding. Furthermore, each end of the push rod 906 near the adjusting knob 907 is fixed with an L-shaped locking piece extending into the annular anti-detachment groove. The outer wall of the L-shaped locking piece and the inner wall of the annular anti-detachment groove form a clearance fit, creating a stable sliding connection structure. The core function of this design is that when the adjusting knob 907 is rotated, the rotational motion is converted into an axial thrust on the push rod 906 through the cooperation of the annular anti-detachment groove and the L-shaped locking piece, thereby smoothly pushing the push rod 906. The hinge rod 903 can be extended or retracted, while effectively preventing the top rod 906 from disengaging from the adjusting knob 907. An L-shaped rope fixing block 902 is fixed at the bottom of the rectangular groove 901, away from the ball head 904, near the hinge shaft. A spring rope 9021 is fixed at the top of the L-shaped rope fixing block 902. The spring rope 9021 is always in a pre-tensioned state. When the adjusting knob 907 is rotated in the opposite direction, the triangular block at the end of the top rod 906 is removed from the end of the hinge rod 903, and the spring rope 9021 can quickly release its elastic potential energy, pulling the hinge rod 903 to quickly return to its initial position without manual intervention.

[0044] Reference Figure 3 , Figure 6 and Figure 7The outer diameter of the adjusting knob 907 is smaller than the outer diameter of the main spindle, and the width of the hinge rod 903 is equal to the depth of the rectangular groove 901. When the hinge rod 903 retracts into the rectangular groove 901, its surface remains flush with the outer surface of the main spindle. This ensures that there are no protrusions on the outer surface of the main spindle when no inspection is being performed, allowing the main spindle to freely and smoothly retract or advance from the connector module 12. This avoids collisions, jamming, or scratches between protrusions and the inner wall of the connector module 12, protecting the structural integrity of the main spindle and the connector module 12, ensuring the smoothness of the inspection operation, and improving the operational stability of the equipment.

[0045] Reference Figure 1 A telescopic rod 4 is fixed near the center of the main housing 6 on the side away from the grinding motor 10, and the extension direction of the telescopic rod 4 is parallel to the main shaft. The end of the extension rod of the telescopic rod 4 is fixed to the main shaft through a connector, so that it can move synchronously with it.

[0046] Reference Figures 1-2 A sliding support frame 11 is installed above the base plate of the machine base 1. A high-precision electric slider is installed at the top of the sliding support frame 11. The electric slider is driven by a servo motor and can achieve precise horizontal axial movement with a movement accuracy of micron level, meeting the needs of precision grinding operations. The grinding motor 10 is fixed to the upper surface of the electric slider by bolts. An arc-shaped top cover 3 is hinged to the top of the rear panel. The arc-shaped top cover 3 can be freely rotated around the hinge, which facilitates the inspection and maintenance of the internal components of the equipment. The side guard plate 2 and the front of the main unit box 6 are connected by a sliding rail with the same sliding door 7. The sliding door 7 can be flexibly pushed and pulled along the sliding rail to realize the opening and closing of the equipment's working area. It is worth noting that both the sliding door 7 and the arc-shaped top cover 3 are made of high-transparency tempered glass. This material not only has good pressure resistance and impact resistance, but also enables the visualization of the working area, making it easy for operators to observe the grinding operation in real time. At the same time, it can effectively prevent waste chips and metal dust generated during the grinding process from splashing everywhere, avoiding pollution of the working environment. It is especially suitable for cleanrooms required for the production of precision instruments, ensuring product processing quality and workshop cleanliness.

[0047] Reference Figures 2-8The clamping mechanism 8 includes cantilever fixing rods 801 fixed to the side of the main housing 6 and symmetrically distributed about the main spindle. The ends of the multiple cantilever fixing rods 801 near the grinding motor 10 are fixed to the same ring-shaped bearing base ring 807. The outer circumference of the bearing base ring 807 has three symmetrically distributed cross-sections, and each cross-section has a concentrically distributed sliding insertion hole 811. Each sliding insertion hole 811 contains a sliding anti-torsion rod 808, and the ends of all anti-torsion rods 808 away from the main spindle are respectively fixed to symmetrically distributed hinge brackets 80. 9; A hinge frame 804 is fixed on the side of the bearing base ring 807 near the middle of each sliding hole 811, and a Y-shaped pressure rod 805 is rotatably connected to the top of each hinge frame 804. The two ends of the Y-shaped pressure rod 805 are respectively provided with a strip hole and an arc-shaped clamping plate 806. A pressure shaft passing through the strip hole is provided at the end of the hinge frame 809 away from the anti-torsion sliding rod 808. The axis of the main shaft is located on the surface swept by the Y-shaped pressure rod 805 during movement. A limit ring is fixed on the side of the bearing base ring 807 away from the hinge frame 804, and a rotating worm gear is rotatably sleeved on the outer wall of the limit ring. The rotating worm gear disk 802 has a wear-resistant convex shaft that extends horizontally towards the end of each anti-torsion sliding rod 808; the rotating worm gear disk 802 has a variable diameter sliding hole 803 that matches the wear-resistant convex shaft on its surface; two shaft brackets 13 are fixed near the rotating worm gear disk 802 on the back plate of the base 1, and the same worm 14 is rotatably connected between the two shaft brackets 13, and the worm 14 meshes with the rotating worm gear disk 802; a drive motor is provided at the bottom end of the worm 14; before clamping, the clamping mechanism 8 has three Y-shaped pressure rods 805 with one end near the arc-shaped clamping plate 806 facing towards the... The expansion provides sufficient space for the connector module 12 to be inserted. After the connector module 12 is fitted onto the detection end of the centering module 9, the drive motor is started in reverse. At this time, since the worm 14 and the worm wheel 802 mesh with each other, the worm wheel 802 and the variable diameter sliding hole 803 rotate together, which in turn drives the three anti-torsion sliding rods 808 to move outward radially at the same time. Since the Y-shaped pressure rod 805 is lever-shaped, one end moves radially, while the other end, which is close to the arc-shaped clamping plate 806, converges towards the middle at the same time, thus forming a clamping of the connector module 12.

[0048] By using the clamping mechanism 8 and three extended Y-shaped pressure rods 805, the clamping part can be precisely extended, cleverly extending the clamping position of the connector module 12 to a region far away from the main body of the clamping mechanism 8, completely avoiding structural obstruction by the main body of the clamping mechanism 8. This optimizes the ease of operation and ensures the accuracy of the operation. It also significantly increases the operating space around the connector module 12, completely eliminating the obstruction of the operation by the main body of the clamping mechanism 8. Operators can also effectively avoid collisions and scratches between the connector module 12 and the main body of the clamping mechanism 8 during handling and placement, protecting the surface accuracy and structural integrity of the connector module 12 and reducing workpiece wear. Moreover, after the clamping part is far away from the main body of the clamping mechanism 8, the overall exposure of the connector module 12 is greatly improved. Operators can clearly observe the installation posture of the connector module 12 and its alignment with the spindle and grinding mechanism, which facilitates accurate detection of whether the installation position of the connector module 12 is offset and whether the coaxiality meets the standard. At the same time, the angle and position of the connector module 12 can be quickly and conveniently adjusted.

[0049] Reference Figures 1-4 Each of the three arc-shaped clamping plates 806 has a screw hole at the end away from the rotating worm gear disc 802. The front of the main unit 6 is equipped with a control panel 5 near the top for controlling the drive motor and the telescopic rod 4. The pressure sensor 905 is connected to the controller input terminal in the control panel 5 via a signal line, thereby displaying the pressure signal on the display screen of the control panel 5. When it is necessary to grind the outer wall of a small-diameter pipe, each screw hole can be inserted into the extension rod to open and fix the small-diameter pipe from the inside out.

[0050] Reference Figure 4 Multiple hinge frames 804 are fixed on one side near the middle with hinge frames 810 arranged in a centrally symmetrical manner. Each hinge frame 810 is equipped with a grooved fixed pulley at the end near the main shaft. The grooved fixed pulley is pressed against the outer wall of the main shaft, thereby assisting the overall horizontal advancement and retraction of the centering module 9.

[0051] Working principle: Before use, the grinding head of the grinding motor 10 is moved away from the clamping mechanism 8. Then, the three Y-shaped pressure rods 805 in the clamping mechanism 8 are opened at the ends near the arc-shaped clamping plate 806 until the workpiece to be ground, i.e., the joint module 12, is fixed. At this time, the extension rod of the telescopic rod 4 is retracted to slowly insert the detection end of the centering module 9 into the interior of the joint module 12. Then, the adjustment knob 907 is turned. At this time, all the hinge rods 903 are opened under the action of the top rod 906. When the ball head 904 presses against the inner wall of the joint module 12 at the same time, if the data fed back by all the pressure sensors 905 are consistent, it means that the joint module 12 is in the rifling centering state. Otherwise, the clamping mechanism 8 needs to be adjusted. After checking the rifling centering state, the three hinge rods 903 are restored and retracted as a whole, and the grinding motor 10 is controlled to grind.

[0052] Reference Figures 11-13 A quick-release connector with a sealing structure is disclosed. The connector module 12 has an overall tubular structure, and a retaining step 1201 is provided near one end of the inner circumference of the connector module 12. A sealing ring 17 is provided on the side of the retaining step 1201 near the large diameter. A tapered sleeve 16 for pressing against the sealing ring 17 is slidably connected to the inner circumference of the connector module 12 near the retaining step 1201. A kit body 15 is also slidably connected to the end of the connector module 12 near the large diameter. The end of the kit body 15 near the tapered sleeve 16 has multiple notches. One end of the outer circumference of the kit body 15 has a protrusion, and the end of the kit body 15 away from the protrusion has an annular retaining ring. The diameter of the annular retaining ring is larger than the inner diameter of the connector module 12. The outer circumference of the notched section of the kit body 15 is fitted with a tightening retaining ring 18. The outer circumference of the connector module 12 near the larger diameter end has an external thread, and an annular tightening screw ring 20 is screwed into the external thread. When connecting the pipe, the head of the hose 19 inserted inside the kit body 15 can be tightly pressed against the end of the tapered sleeve 16 by slowly rotating the tightening screw ring 20. Then, the sealing ring 17 can be used to complete the sealing and prevent detachment.

[0053] Reference Figures 11-13 The inner diameter of the tightening and turning ring 20 is smaller than the diameter of the annular retaining ring, and the tightening and turning ring 20 is made of wear-resistant material.

[0054] Working principle: Before installation, insert the hose 19 into the kit body 15. The end of the hose 19 protrudes slightly from the end of the kit body 15 with the protrusion. Then, insert the tapered sleeve 16 into the inner wall of the protruding hose 19. Next, push the tightening retaining ring 18 to the position close to the protrusion. Finally, insert the entire kit body 15 into the connector module 12 and tighten the tightening ring 20.

[0055] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A joint inner wall grinding device, comprising a joint module (12) and a base (1), the base (1) comprising a base plate and a back plate, side guard plates (2) and a main unit housing (6) respectively provided at the left and right ends of the base (1), and a grinding motor (10) provided in the middle of the side guard plates (2), characterized in that, The main unit (6) is fixed with a clamping mechanism (8) and a centering module (9) on the side near the grinding motor (10). The centering module (9) includes a spindle. The diameter of the main spindle is smaller than the inner diameter of the connector module (12). Multiple rectangular slots (901) are provided on the outer circumference of the end of the main spindle near the grinding motor (10). Each rectangular slot (901) is hinged with a hinge rod (903). A screw (908) is reserved at the end of the main spindle near the grinding motor (10). A compression spring (909) and a ball head (904) connected together are fixed to the swing end of the hinge rod (903) in sequence. A support block is also reserved at the swing end of the hinge rod (903). A pressure sensor (905) is fixed on the side of the support block near the ball head (904). An expansion mechanism is screwed onto the screw (908).

2. The joint inner wall grinding equipment according to claim 1, characterized in that, The main shaft is slidably inserted into the middle of the main housing (6) and is coaxially arranged with the output shaft of the grinding motor (10); the diameter of the screw (908) is smaller than that of the main shaft and is coaxial with it; the expansion mechanism includes an adjustment knob (907) screwed onto the screw (908), and the adjustment knob (907) is provided with an annular anti-detachment groove on the side near the hinge rod (903), and a top rod (906) is slidably inserted into each of the rectangular grooves (901), and a triangular block that can extend into the bottom of the support block is reserved at the end of the top rod (906) near the hinge rod (903); The length direction of the rectangular groove (901) is parallel to the axis of the main shaft; and the top rod (906) near the adjustment knob (907) is fixed with an L-shaped clip that extends into the annular anti-detachment groove, and the outer wall of the L-shaped clip forms a clearance fit with the inner wall of the annular anti-detachment groove. The bottom of the rectangular groove (901) away from the ball head (904) is fixed with an L-shaped rope fixing block (902) near the hinge shaft, and the top of the L-shaped rope fixing block (902) is fixed with a spring rope (9021).

3. The joint inner wall grinding equipment according to claim 1, characterized in that, The outer diameter of the adjustment knob (907) is smaller than the outer diameter of the main shaft, and the width of the hinge rod (903) is equal to the groove depth of the rectangular groove (901). When the hinge rod (903) retracts into the rectangular groove (901), its surface remains flush with the outer surface of the main shaft.

4. The joint inner wall grinding equipment according to claim 1, characterized in that, The main housing (6) is fixed with a telescopic rod (4) near the center on the side away from the grinding motor (10), and the extension direction of the telescopic rod (4) is parallel to the main shaft. The end of the extension rod of the telescopic rod (4) is fixed to the main shaft through a connector.

5. The joint inner wall grinding equipment according to claim 1, characterized in that, A sliding support frame (11) is provided above the base plate of the machine base (1). A high-precision electric slider is installed at the top of the sliding support frame (11). The grinding motor (10) is fixed to the upper surface of the electric slider by bolts. An arc-shaped top cover (3) is hinged to the top of the back plate. The same sliding door (7) is slidably connected between the side guard plate (2) and the front of the main unit box (6) by a slide rail. Both the sliding door (7) and the arc-shaped top cover (3) are made of high-transparency tempered glass.

6. The joint inner wall grinding equipment according to claim 1, characterized in that, The clamping mechanism (8) includes cantilever fixing rods (801) fixed to the side of the main unit housing (6) and distributed symmetrically about the main shaft. The multiple cantilever fixing rods (801) are fixed with the same ring-shaped bearing base ring (807) at one end near the grinding motor (10). The outer circumference of the bearing base ring (807) is provided with three symmetrically arranged cross-sections, and each cross-section is provided with a centripetally distributed sliding hole (811). Each sliding hole (811) is slidably inserted with an anti-torsion sliding rod (808), and each anti-torsion sliding rod (808) is fixed with a centrally symmetrically arranged hinge frame two (809) at the end away from the main shaft. The side of the bearing base ring (807) is fixed with a hinge frame one (804) at the middle position of each sliding hole (811), and the top of the hinge frame one (804) is rotatably connected with a Y-shaped pressure rod (805). The two ends of the Y-shaped pressure rod (805) are respectively provided with The frame has a strip-shaped hole and an arc-shaped clamp (806). The end of the second hinge frame (809) away from the anti-torsion slip rod (808) is provided with a pressure shaft that passes through the strip-shaped hole. The axis of the main shaft is located on the surface swept by the Y-shaped pressure rod (805) during movement. The bearing base ring (807) is fixed with a limit ring on the side away from the first hinge frame (804). The outer wall of the limit ring is rotatably sleeved with a rotating worm gear disk (802). The end of each anti-torsion slip rod (808) is fixed with a horizontally extending... The rotating worm gear disk (802) has a wear-resistant convex shaft; the rotating worm gear disk (802) has a variable diameter sliding hole (803) adapted to the wear-resistant convex shaft on its disk surface; two shaft brackets (13) are fixed near the rotating worm gear disk (802) on the back plate of the base (1), and the same worm (14) is rotatably connected between the two shaft brackets (13), and the worm (14) meshes with the rotating worm gear disk (802); a drive motor is provided at the bottom end of the worm (14).

7. The joint inner wall grinding equipment according to claim 6, characterized in that, Each of the three arc-shaped clamps (806) has a screw hole at the end away from the rotating worm gear disc (802). The front of the main unit (6) near the top is provided with a control panel (5) for controlling the drive motor and telescopic rod (4). The pressure sensor (905) is connected to the controller input terminal in the control panel (5) via a signal line.

8. A joint inner wall grinding device according to claim 6, characterized in that, Each of the multiple hinge frames one (804) has a centrally symmetrically distributed hinge frame three (810) fixed on one side near the middle. Each hinge frame three (810) has a grooved fixed pulley at one end near the main shaft, and the grooved fixed pulley abuts against the outer wall of the main shaft.

9. A quick-release connector with a sealing structure, comprising the connector module (12) as claimed in claim 1, characterized in that, The connector module (12) has a tubular structure, and a retaining step (1201) is reserved on the inner circumference of the connector module (12) near one end. A sealing ring (17) is provided on the side of the retaining step (1201) near the large diameter. A tapered sleeve (16) for pressing against the sealing ring (17) is slidably connected to the inner circumference of the connector module (12) near the retaining step (1201). The end of the connector module (12) near the large diameter is also slidably connected to the kit body (15), and the kit body (15) is close to... Multiple notches are provided at one end of the tapered sleeve (16). A protrusion is reserved on the outer circumference of the body of the kit (15) near the tapered sleeve (16), and an annular retaining ring is reserved at the end of the body of the kit (15) away from the protrusion. The diameter of the annular retaining ring is larger than the inner diameter of the connector module (12). A tightening retaining ring (18) is sleeved on the outer circumference of the notch section of the body of the kit (15). An external thread is reserved on the outer circumference of the connector module (12) near the large diameter end, and a ring-shaped tightening and screwing ring (20) is screwed into the external thread.

10. A quick-release connector with a sealing structure according to claim 9, characterized in that, The inner diameter of the tightening and turning ring (20) is smaller than the diameter of the annular retaining ring, and the tightening and turning ring (20) is made of wear-resistant material.

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