Sealing device for oil hole in outer shuttle

Abstract

The invention relates to a sealing device for an oil hole in an outer shuttle, and relates to the technical field of production and processing of important accessories of sewing equipment. The positioning assembly is mounted on the rack, the driving part of the outer shuttle is inserted into the positioning assembly, and the positioning assembly is provided with a positioning block for positioning the step surface position of the outer shuttle; the rotation adjusting assembly and the rotation driving assembly are installed on the rack, and the rotation adjusting assembly is used for pushing the outer shuttle arranged on the positioning assembly in a sleeving mode to rotate; the positioning bin is arranged above the positioning assembly, a discharging opening is formed in the lower end of the positioning bin, and the discharging opening can be aligned to and communicated with the upper oil hole of the outer shuttle; and the pressure assembly is arranged above the positioning bin, and the pressure assembly is used for pressurizing the sealing steel balls stored in the positioning bin so that the sealing steel balls can be pressed into the upper oil hole. The sealing steel ball mounting device has the effect of improving the sealing steel ball mounting efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of production and processing of important accessories for sewing equipment, and in particular to a sealing device for an oil hole on an outer shuttle. Background Art

[0002] The rotary hook is an important part inside the sewing machine. Among sewing machine equipment, the most common sewing machine is the one that uses lockstitch. The rotary hook of the lockstitch sewing machine includes an inner hook and an outer hook. The tip of the outer hook hooks the thread loop and drives the thread to rotate around the lock core to form a lockstitch. During use, in order to reduce the wear of the outer hook, an oiling hole is set on the outer hook, and lubricating oil is transported to the inside of the rotary hook through the oiling hole to reduce the probability of wear of the rotary hook.

[0003] The relevant technology of the oiling hole can refer to the Chinese patent with the announcement number CN216473857U applied by the applicant earlier, in which the oiling hole is arranged on the outer wall of the outer shuttle. In order to prevent the lubricating oil from flowing out of the oiling hole to the outside of the rotary shuttle, the oiling hole needs to be sealed during the production process.

[0004] The applicant now uses a sealing steel ball to seal the upper oil hole. In the prior art, when the sealing steel ball technology is used to seal the upper oil hole, the sealing steel ball is first placed on the oil hole, and then the operator starts the punch press to press the sealing steel ball into the oil hole.

[0005] This method requires the operator to place the sealing steel ball on the oiling hole before processing. The sealing steel ball is relatively small, and the operator places the sealing steel ball above the oiling hole, which leads to low installation efficiency, and thus needs to be improved. Summary of the invention

[0006] The purpose of the present application is to provide a sealing device for an oil hole on an outer shuttle, which has the effect of improving the installation efficiency of a sealing steel ball.

[0007] The present application provides a sealing device for an oil hole on an outer shuttle, which adopts the following technical solution: A sealing device for an oil hole on an outer shuttle, comprising: A frame, the frame plays a supporting role; A positioning assembly, the positioning assembly is mounted on the frame, the driving part of the outer shuttle is inserted into the positioning assembly, and the positioning assembly has a positioning block for locating the position of the stepped surface of the outer shuttle; A rotary adjustment component, wherein the rotary drive component is mounted on the frame, and the rotary adjustment component is used to drive the outer shuttle sleeved on the positioning component to rotate; A positioning bin, the positioning bin is arranged above the positioning assembly, a discharge port is arranged at the lower end of the positioning bin, and the discharge port can be aligned with and communicated with the oiling hole of the outer shuttle; A pressure component is arranged above the positioning bin and is used to pressurize the sealing steel balls stored in the positioning bin so that the sealing steel balls are pressed into the oiling holes.

[0008] By adopting the above technical solution, when it is necessary to install the sealing steel ball in the oiling hole of the outer shuttle, it is only necessary to insert the driving part of the outer shuttle into the positioning assembly, and make the stepped surface of the outer shuttle close to the positioning block, and then use the rotary driving assembly to drive the outer shuttle to rotate finely, ensuring that the stepped surface of the outer shuttle is close to the positioning block to achieve the angle positioning of the outer shuttle and avoid the angle of the outer shuttle from changing again, so that the oiling hole of the outer shuttle can be aligned with the discharge port of the positioning bin. At this time, only one sealing steel ball needs to be placed in the positioning bin, and the positioning bin can be used to quickly position it directly above the oiling port of the outer shuttle, and finally the sealing steel ball can be pressed into the oiling port of the outer shuttle using the pressure assembly.

[0009] Optionally, the positioning component includes: A mounting seat, the mounting seat is fixedly mounted on the frame, the mounting seat is provided with a mounting hole, and the positioning block is inserted into the mounting seat; A positioning sleeve, one end of which is inserted into the mounting hole, a limiting ring capable of tightly fitting with the outer surface of the mounting seat is arranged on the outer wall of the end of the positioning sleeve extending out of the mounting hole, and a positioning groove for inserting the driving part of the outer shuttle is arranged on the end of the positioning sleeve extending out of the mounting hole; A connecting block, the connecting block is arranged on a side surface of the mounting seat away from the limiting ring, and a fastening bolt threadedly connected to the positioning sleeve is inserted into the connecting block; The driving part of the outer shuttle is inserted into the positioning groove, and the outer shuttle is rotated until the stepped surface of the outer shuttle is tightly pressed against the positioning block, and the oiling hole of the outer shuttle is aligned with the discharge port of the positioning bin and communicates with each other.

[0010] By adopting the above technical solution, when placing the outer shuttle, it is only necessary to insert the driving part of the outer shuttle into the positioning groove, and by utilizing the cooperation between the limiting ring and the connecting block and then locking it with the fastening bolts, the positioning sleeve can be detachably installed on the mounting seat, making it suitable for fixing outer shuttles of different sizes.

[0011] Optionally, the rotation adjustment component includes: A friction block, which is installed at the lower end of the mounting seat in a translational manner, and is located directly below the rotating portion of the outer shuttle, and has an inclined surface on its upper side; A first telescopic cylinder, which is mounted on the frame and is used to drive the friction block to translate; When the friction block is pushed and translated by the first telescopic cylinder, the inclined surface of the friction block can fit with the outer wall of the rotating part of the outer shuttle. As the friction block continues to translate, the friction block can use friction to drive the outer shuttle to rotate until the stepped surface of the outer shuttle abuts against the positioning block.

[0012] By adopting the above technical solution, the friction block is driven to move horizontally by the first telescopic cylinder. When the inclined surface of the friction block contacts the surface of the outer shuttle, the outer shuttle can be controlled to make a slight angle adjustment under the action of friction, ensuring that the stepped surface of the outer shuttle can press against the positioning block to achieve the angle adjustment of the outer shuttle. In addition, the friction block with an inclined surface can be used for fine-tuning the angle of outer shuttles with different outer diameters.

[0013] Optionally, a pressing assembly is further included, wherein the pressing assembly includes: A second telescopic cylinder, the second telescopic cylinder is mounted on the frame, and a piston rod of the second telescopic cylinder is arranged toward the positioning assembly; A rotating block, the rotating block is mounted on the piston rod of the second telescopic cylinder, and a hinge support is provided on a side of the rotating block close to the positioning assembly; A clamping rod, the clamping rod is rotatably connected to the rotating block through a hinge support, and one end of the clamping rod close to the positioning assembly is provided with a guide surface capable of fitting with the outer shuttle; An elastic reset mechanism, the two ends of which are respectively connected to the pressing rod and the rotating block, and the elastic reset mechanism is located on a side of the hinge support away from the positioning assembly; When the outer shuttle is positioned and installed in the positioning assembly, the clamping rod can extend into the outer shuttle through the connection port of the outer shuttle and fit into the inner shuttle receiving groove of the outer shuttle. At this time, the elastic reset mechanism is in a compressed and contracted state.

[0014] By adopting the above technical solution, the piston rod of the second telescopic cylinder moves toward the direction of the mounting seat. At this time, the clamping rod can be driven to move toward the outer shuttle. When the clamping rod moves toward the outer shuttle, the guide surface of the clamping rod begins to fit with the edge of the wiring port of the outer shuttle. As the clamping rod continues to move, the end of the clamping rod that contacts the outer shuttle shifts toward the direction away from the mounting seat, and thereby squeezes the elastic reset mechanism. When the elastic reset mechanism is compressed, it will generate a reaction force on the clamping rod, so that the clamping rod can press the outer shuttle onto the mounting seat.

[0015] Optionally, the positioning bin includes: A bin body, the upper end of which is fixedly connected to the upper end of the mounting seat, the upper end of which is provided with a punching port, and one side of which is also provided with a feed port; A material discharge head, which is detachably mounted on the lower end of the bin body by means of a threaded connection, a conical cavity is arranged in the material discharge head, and the discharge port of the positioning bin is arranged in the lower end of the material discharge head; The punching head of the pressure assembly can extend into the bin body through the punching opening, and the sealing steel ball can enter the bin body through the feed opening and finally fall into the conical cavity.

[0016] By adopting the above technical solution, when in use, you only need to put the sealing steel ball into the bin body through the feed port. The sealing steel ball will automatically fall into the conical cavity of the discharge head under the action of gravity, and finally fall into the discharge port. Then, the sealing steel ball can be pushed out by the pressure assembly. The discharge head with threaded connection can be detachably installed in the lower end of the bin body, so that the corresponding discharge head can be replaced according to the sealing steel balls of different specifications and sizes.

[0017] Optionally, the discharge port is provided with: A limiting member, wherein a plurality of limiting members are arranged circumferentially around the axis of the blanking head, the upper end of each limiting member is rotatably connected to the inner wall of the blanking head, and the diameter of the inscribed circle enclosed by the upper end of each limiting member is larger than the diameter of the sealing steel ball; A counterweight is provided at the lower end of each of the position-limiting members and on one side away from the axis of the blanking head, and the lower end of each of the position-limiting members is inclined toward the circumferential direction of the blanking head under the action of the counterweight; Among them, when each of the limit members is in a naturally hanging state, the minimum inscribed circle diameter formed by the lower ends of each of the limit members is smaller than the diameter of the sealing steel ball. When the lower ends of each of the limit members are swung toward a direction away from the feeding head by an external force, the minimum inscribed circle diameter between each of the limit members is the same as the diameter of the sealing steel ball.

[0018] By adopting the above technical solution and utilizing the counterweight part, when the limit piece naturally hangs down, the lower end of the limit piece will tilt toward the direction of the axis of the feed head, so that the lower ends of the limit pieces can cooperate to temporarily intercept the sealing steel ball. Only when the sealing steel ball is subjected to the punching pressure of the pressure component can it break through the interception of the limit pieces and finally be pressed into the oiling port of the outer shuttle.

[0019] Optionally, the inner wall of the lower end of the blanking head is provided with: Avoidance grooves, wherein a plurality of avoidance grooves are arranged equidistantly around the axis of the discharge port, and each of the position-limiting members is respectively arranged in each avoidance groove; A first semicircular hook, wherein the first semicircular hook is provided with a plurality of paths, each of the first semicircular hooks is respectively provided in each path of the avoidance groove, and each of the first semicircular hooks is provided upward; Among them, the upper end of each of the limiting members is provided with a second semicircular hook, the second semicircular hook can hook the first semicircular hook, and when the second semicircular hook and the first semicircular hook are hooked with each other, the limiting member can rotate with the axis of the second semicircular hook as the center of the circle.

[0020] By adopting the above technical scheme and utilizing the cooperation between the first semicircular hook and the second semicircular hook, not only can the rotational connection between the upper end of the limit member and the discharge head be achieved, but also the detachable installation of the limit member can be achieved, which facilitates the replacement of the limit member after damage, and can also replace limit members of different sizes to achieve the effect of adjusting the size of the discharge port.

[0021] Optionally, it also includes a steel ball automatic supply component, the steel ball automatic supply component includes: A vibration plate, the vibration plate is arranged on the frame, the vibration plate is used to vibrate and output the sealing steel balls, and the vibration plate has an extended discharge section; An air pipe, the two ends of which are respectively connected to the discharge end of the vibration plate and the feed port of the positioning bin, and the end of the extended discharge section away from the vibration plate is inserted into the air pipe; A telescopic motor, wherein two telescopic motors are arranged along the length direction of the extended discharge section, and the two telescopic motors are respectively arranged on both sides of the extended discharge section, and the motor shafts of the two telescopic motors can be inserted into the extended discharge section, and a gap is left between the motor shafts of the two telescopic motors for only a single sealing steel ball to pass through; An air pump, wherein the air outlet end of the air pump is connected to an end of the air pipe away from the positioning bin through a branch pipe, the branch pipe is located on a side of the telescopic motor close to the vibration plate, and the end of the branch pipe connected to the air pipe is inclined toward the direction of the telescopic motor.

[0022] By adopting the above technical solution, the sealing steel balls are transported out one by one through the vibration plate, and by utilizing the cooperation between the two telescopic motors, only one sealing steel ball can be transported to the positioning bin through the air pipe at a time. The air pump can deliver compressed air into the air pipe to achieve the effect of pushing the sealing steel balls to move in the air pipe.

[0023] Optionally, the pressure component includes: A press machine is installed on a frame, the lower end of the punch of the press machine is inserted into the upper end of the warehouse body, and the punch of the press machine is coaxially arranged with the discharge port.

[0024] By adopting the above technical solution, the press is an existing conventional technology, and the punch of the press can perform reciprocating lifting and lowering motion, and can exert downward pressure on the sealing steel ball located in the discharge material, thereby achieving the effect of pressing the sealing steel ball into the oiling port of the outer shuttle.

[0025] In summary, the present application includes at least one of the following beneficial technical effects: 1. It can automatically complete the feeding, placement and installation of sealing steel balls. The staff only needs to be responsible for placing the outer shuttle, which can greatly improve work efficiency and reduce operation risks; 2. It can be used to install and use sealing steel balls of external shuttles of different specifications, with a wide range of applications and high economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the external structure of the outer shuttle in the prior art; Figure 2 It is a schematic diagram of the internal structure of the outer shuttle in the prior art; Figure 3 is a schematic structural diagram of a sealing device according to Example 1 of the present application; Figure 4 This is a schematic diagram of the structure of the positioning component of Example 1 of the present application. Figure 5 is a schematic diagram of the exploded structure of the positioning assembly of Example 1 of the present application; Figure 6 is a schematic diagram of the connection between the clamping assembly and the positioning assembly of Example 1 of the present application; Figure 7 is a schematic structural diagram of a clamping assembly according to Example 1 of the present application; Figure 8 is a schematic diagram of the connection between the rotation adjustment component and the positioning component of Example 1 of the present application; Fig. 9 is a schematic diagram of the connection between the positioning bin and the positioning assembly in Example 1 of the present application; Fig.10 It is a structural schematic diagram of the positioning bin of Example 1 of the present application; Fig.11 It is a structural schematic diagram of the steel ball automatic supply assembly of Example 2 of the present application; Fig.12 This is a schematic diagram of the installation of the blanking head of Example 2 of the present application; Fig.13 It is a schematic diagram of the internal structure of the blanking head of Example 2 of the present application.

[0027] In the figure, 1, outer shuttle; 11, rotating part; 111, shuttle tip; 112, wiring port; 113, oiling hole; 114, inner shuttle receiving groove; 12, driving part; 13, thickening part; 131, stepped surface; 2, frame; 3, positioning assembly; 31, mounting seat; 311, mounting hole; 32, positioning sleeve; 321, positioning groove; 322, positioning ring; 33, positioning block; 34, connecting block; 35, fastening bolt; 36, mounting block; 361, hoop structure; 4, clamping assembly; 41, mounting rod; 42, second telescopic cylinder; 43, rotating block; 431, hinge support; 44, clamping rod; 441. guide surface; 45. elastic reset mechanism; 451. connecting bolt; 452. spring; 5. rotation adjustment assembly; 51. friction block; 511. inclined surface; 52. first telescopic cylinder; 6. positioning bin; 61. bin body; 611. feed port; 62. feed head; 621. discharge port; 622. avoidance groove; 623. first semicircular hook; 63. connecting pipe; 631. stamping port; 64. limiter; 641. counterweight; 642. second semicircular hook; 7. pressure assembly; 8. automatic steel ball supply assembly; 81. vibration plate; 82. air pipe; 83. telescopic motor; 84. air pump. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1 -Attached Fig.13 , further details of this application are given.

[0029] Reference Figure 1 and Figure 2 The outer shuttle 1 includes a wire pressing plate (not shown in the figure) and an outer shuttle 1 body. The outer shuttle 1 body includes a rotating part 11 and a driving part 12. The rotating part 11 has a rotating part 11 inside. The rotating part 11 is also provided with a wiring port 112 for the wire loop to enter and exit. The rotating part 11 has a shuttle tip 111 at one end close to the wiring port 112. A thickened part 13 is provided on the rotating part 11. One end of the thickened part 13 is close to the shuttle tip 111 of the outer shuttle 1, and the end of the thickened part 13 away from the shuttle tip 111 is set as a stepped surface 131. The oiling hole 113 is set on the circumferential side wall of the rotating part 11.

[0030] Among them, when the outer shuttle 1 of the present application is produced, the sealing steel ball is first installed, and then the wire pressing plate is fixed by locking.

[0031] Embodiment 1: A sealing device for the oil hole on the outer shuttle, referring to Figure 3 , including a frame 2, a positioning component 3, a clamping component 4, a rotation adjustment component 5, a positioning bin 6 and a pressure component 7. The frame 2 plays a supporting role, and the positioning component 3, the clamping component 4, the rotation adjustment component 5, the positioning bin 6 and the pressure component 7 are all installed on the frame 2.

[0032] Among them, the positioning component 3 is used to limit the angular position of the outer shuttle 1 so that the upper oil hole 113 of the outer shuttle 1 can face vertically upward; the clamping component 4 is used to press the outer shuttle 1 on the positioning component 3 to prevent the outer shuttle 1 from detaching from the positioning component 3; the rotation adjustment component 5 is used to drive the outer shuttle 1 to rotate, so as to cooperate with the positioning component 3 to realize the installation angle limitation of the outer shuttle 1; the positioning chamber 6 is used to realize the positioning and placement of the sealing steel ball in the upper oil hole 113 of the outer shuttle 1; the pressure component 7 is used to press the sealing steel ball in the positioning chamber 6 into the upper oil hole 113 of the outer shuttle 1.

[0033] Reference Figure 3 The pressure assembly 7 includes a press machine, which is installed on the frame 2, and the lower end of the punch of the press machine is inserted into the upper end of the positioning bin 6.

[0034] Reference Figure 4 and Figure 5 The positioning assembly 3 includes a mounting seat 31, a positioning sleeve 32, a connecting block 34 and a positioning block 33; wherein the mounting seat 31 is detachably mounted on the frame 2 by means of bolt locking, one end of the positioning sleeve 32 is inserted into the mounting seat 31, and the end of the positioning sleeve 32 extending out of the mounting hole 311 is provided with a positioning groove 321 for inserting the driving part 12 of the outer shuttle 1, the connecting block 34 is arranged on a side surface of the mounting seat 31 away from the positioning installation of the outer shuttle 1, and the connecting block 34 is fixed to the two opposite side surfaces of the mounting seat 31 respectively with the positioning sleeve 32 by means of bolt locking, and the positioning block 33 is inserted into the mounting seat 31.

[0035] Among them, a mounting hole 311 is provided on the mounting seat 31, one end of the positioning sleeve 32 is inserted into the mounting hole 311, and a limiting ring is provided on the outer wall of one end of the positioning sleeve 32 with a positioning groove 321. The limiting ring can be tightly fitted with the outer surface of the mounting seat 31, and the connecting block 34 can be tightly fitted with the side of the mounting seat 31 away from the limiting ring. A fastening bolt 35 threadedly connected to the positioning sleeve 32 is inserted on the connecting block 34. Through the fastening bolt 35, the connecting sleeve and the connecting seat are clamped and fixed on the two opposite sides of the connecting seat.

[0036] When the outer shuttle 1 needs to be positioned and installed on the mounting seat 31, it is only necessary to insert the driving part 12 of the outer shuttle 1 into the positioning groove 321, and then rotate the outer shuttle 1 until the stepped surface 131 of the outer shuttle 1 is tightly against the positioning block 33, so that the oiling hole 113 of the outer shuttle 1 is vertically upward.

[0037] Reference Figure 6 and Figure 7The clamping assembly 4 includes a second telescopic cylinder 42, a rotating block 43, a clamping rod 44 and an elastic reset mechanism 45; wherein, an "L"-shaped mounting rod 41 is installed on one side of the mounting seat 31, the cylinder body of the second telescopic cylinder 42 is installed on the mounting rod 41, the rotating block 43 is installed on the piston rod of the second telescopic cylinder 42, and a hinge support 431 is provided on the side of the rotating block 43 close to the positioning assembly 3. The clamping rod 44 is rotatably installed on the rotating block 43 through the hinge support 431, and the elastic reset mechanism 45 is installed between the rotating block 43 and the clamping rod 44. The elastic reset mechanism 45 is used to drive the end of the clamping rod 44 away from the second telescopic cylinder 42 to deflect toward the direction close to the positioning assembly 3.

[0038] Reference Figure 7 The clamping assembly 4 is arranged on one side of the positioning assembly 3, the piston rod of the second telescopic cylinder 42 is extended toward the position where the outer shuttle 1 is positioned and installed, the rotating block 43 is installed on the piston rod of the second telescopic cylinder 42, and a guide surface 441 is provided at one end of the clamping rod 44 close to the positioning assembly 3; wherein, when the outer shuttle 1 is positioned and installed in the positioning assembly 3, the guide surface 441 first fits with the edge of the wiring port 112, so that the clamping rod 44 can extend into the outer shuttle 1 through the wiring port 112, and finally fits tightly with the inner shuttle accommodating groove 114 of the outer shuttle 1, at which time, the elastic reset mechanism 45 is in a compressed and contracted state.

[0039] Reference Figure 7 The elastic reset mechanism 45 includes a connecting bolt 451 and a spring 452. The bolt body passes through the rotating block 43 and the clamping rod 44, and the other end of the bolt is threadedly connected with a nut. Through the cooperation between the bolt cap and the nut, the clamping rod 44 and the rotating block 43 are restricted on the bolt body. The spring 452 is sleeved on the bolt body, and the two ends of the spring 452 are respectively pressed against the rotating block 43 and the clamping rod 44.

[0040] Reference Figure 3 and Figure 8 The rotary adjustment assembly 5 includes a friction block 51 and a first telescopic cylinder 52; wherein, a sliding groove is provided at the lower end of a side surface of the mounting seat 31 for positioning and installing the outer shuttle 1, the lower side of the friction block 51 can be installed in the sliding groove in a translational manner, and the upper side of the friction block 51 has an inclined surface 511, the cylinder body of the first telescopic cylinder 52 is installed on the mounting seat 31, and the piston rod of the first telescopic cylinder 52 is fixedly connected to the friction block 51, and when the piston rod of the first telescopic cylinder 52 translates, it can drive the friction block 51 to translate along the length direction of the sliding groove.

[0041] The sliding groove is horizontally arranged and perpendicular to the vertical projection line of the axis of the positioning sleeve 32 . When the friction block 51 is installed on the sliding groove, the friction block 51 can be located directly below the outer shuttle 1 installed on the mounting seat 31 .

[0042] When the angle of the outer shuttle 1 needs to be adjusted, the piston rod of the first telescopic cylinder 52 is controlled to be pushed out so that the inclined surface 511 of the friction block 51 can fit against the outer wall of the rotating part 11 of the outer shuttle 1. As the friction block 51 continues to translate, the friction block 51 can use the friction force to drive the outer shuttle 1 to rotate until the stepped surface 131 of the outer shuttle 1 completely contacts the positioning block 33.

[0043] Furthermore, a rubber pad may be provided on the inclined surface 511 , and the rubber pad can improve the friction effect and has a buffering ability to avoid scratching the outer wall of the outer shuttle 1 .

[0044] Reference Fig. 9 and Fig.10 The positioning bin 6 includes a bin body 61 and a discharge head 62. The upper end of the bin body 61 is fixedly connected to the upper end of the mounting seat 31. A punching port 631 is provided at the upper end of the bin body 61. The punching head of the pressure assembly 7 can extend into the bin body 61 through the punching port 631. A feed port 611 is also provided on one side of the bin body 61. The sealing steel ball can be put into the bin body 61 through the feed port 611. A conical cavity is provided in the discharge head 62. A discharge port 621 is provided at the lower end of the discharge head 62 and is located directly below the punching port 631. When the sealing steel ball in the conical cavity is punched by the pressure assembly 7, it can be pressed out of the positioning bin 6 through the discharge port 621.

[0045] Reference Fig. 9 and Fig.10 A connecting pipe 63 is provided at the upper end of the bin body 61, and a stamping port 631 is provided on the connecting pipe 63. A mounting block 36 in a "Z" shape is provided at the upper end of the mounting seat 31. The lower end of the mounting block 36 is mounted on the upper end of the mounting seat 31 by means of bolt locking. A clamping structure 361 is provided at the upper end of the mounting block 36. The upper end of the connecting pipe 63 can pass through the clamping structure 361. The clamping structure 361 can clamp and fix the connecting pipe 63 by means of bolt locking, thereby realizing the detachable connection of the positioning bin 6.

[0046] The implementation principle of the embodiment of the present application is: When it is necessary to install the sealing steel ball in the oiling hole 113 of the outer shuttle 1, it is only necessary to insert the driving part 12 of the outer shuttle 1 into the positioning assembly 3, and make the stepped surface 131 of the outer shuttle 1 close to the positioning block 33, and then use the rotary driving assembly to drive the outer shuttle 1 to rotate finely, to ensure that the stepped surface 131 of the outer shuttle 1 is pressed against the positioning block 33, to achieve the angular positioning of the outer shuttle 1, and at the same time avoid the angle of the outer shuttle 1 from changing again, so that the oiling hole 113 of the outer shuttle 1 can be aligned with the discharge port 621 of the positioning bin 6. At this time, it is only necessary to place a sealing steel ball in the positioning bin 6, and the positioning bin 6 can be used to quickly position it above the oiling port of the outer shuttle 1, and finally the sealing steel ball can be pressed into the oiling port of the outer shuttle 1 by the pressure assembly 7.

[0047] Embodiment 2: Reference Fig.11 The difference from Example 1 is that the embodiment of the present application also includes an automatic steel ball supply component 8, and the setting height of the automatic steel ball supply component 8 is higher than the setting height of the positioning bin 6. The automatic steel ball supply component 8 is used to automatically and intermittently deliver sealing steel balls to the positioning bin 6 to realize the automatic loading action of the sealing steel balls.

[0048] The steel ball automatic supply assembly 8 includes a vibration plate 81, an air pipe 82, a telescopic motor 83 and an air pump 84; wherein, the vibration plate 81 is arranged on the frame 2, and an extended discharge section is provided on the discharge end of the vibration plate 81, and the two ends of the air pipe 82 are respectively connected with the discharge end of the vibration plate and the feed port 611 of the positioning bin 6, and the end of the extended discharge section away from the vibration plate 81 is inserted in the air pipe 82, and the telescopic motor 83 is arranged in two pieces along the length direction of the extended discharge section, and a spacing is left between the motor shafts of the two telescopic motors 83 for only a single sealing steel ball to pass through. The two telescopic motors 83 cooperate so that only one sealing steel ball can enter the positioning bin 6 through the air pipe 82 at a time, and the air pump 84 is used to inject compressed air into the air pipe 82, and the sealed steel ball in the air pipe 82 is pushed into the positioning bin 6 by the compressed air.

[0049] Among them, the two telescopic motors 83 are respectively arranged on both sides of the extended discharge section, and the motor shafts of the two telescopic motors 83 can be inserted into the extended discharge section. The air outlet end of the air pump 84 is connected with the end of the air pipe 82 away from the positioning bin 6 through a branch pipe. The branch pipe is located on the side of the telescopic motor 83 close to the vibration plate, and the end of the branch pipe connected with the air pipe 82 is inclined toward the direction of the telescopic motor 83.

[0050] The implementation principle of the embodiment of the present application is: The sealing steel balls are transported out one by one through the vibration plate 81, and the cooperation between the two telescopic motors 83 allows only one sealing steel ball to be transported to the positioning chamber 6 through the air pipe 82 at a time. The air pump 84 can deliver compressed air into the air pipe 82 to achieve the effect of pushing the sealing steel balls to move in the air pipe 82.

[0051] Embodiment 3: Reference Fig.12 and Fig.13 The difference from Example 1 is that the discharge head 62 of the positioning bin 6 is detachably mounted on the lower end of the bin body 61 by means of a threaded connection, wherein a plurality of limit members 64 are arranged circumferentially around the axis of the discharge head 62 in the discharge port 621, and the upper end of each limit member 64 is rotatably connected to the inner wall of the discharge head 62, and the diameter of the inscribed circle enclosed by the upper ends of each limit member 64 is greater than the diameter of the sealing steel ball.

[0052] Among them, a counterweight portion 641 is provided at the lower end of each limiting member 64 and on the side away from the axis of the blanking head 62. Under the action of the counterweight portion 641, the lower end of each limiting member is inclined toward the circumferential direction of the blanking head 62, so that when each limiting member 64 is in a naturally hanging state, the minimum inscribed circle diameter formed by the lower end of each limiting member 64 is smaller than the diameter of the sealing steel ball. When the lower end of each limiting member 64 is swung toward the direction away from the blanking head 62 by an external force, the sealing steel ball can pass through the gap formed by the lower end of each limiting member 64.

[0053] Reference Fig.13 A plurality of avoidance grooves 622 are arranged equidistantly around the axis of the discharge port 621 on the inner wall of the lower end of the discharge head 62, and each limiting member 64 is respectively arranged in each avoidance groove 622; wherein, a first semicircular hook 623 is arranged in each avoidance groove 622, and each first semicircular hook 623 is arranged upward, and a second semicircular hook 642 is arranged at the upper end of each limiting member 64, and each second semicircular hook 642 can hook the first semicircular hook 623.

[0054] When the second semicircular hook 642 and the first semicircular hook 623 are hooked with each other, the limiting member 64 can rotate around the axis of the second semicircular hook 642 as the center of the circle.

[0055] The implementation principle of the embodiment of the present application is: By utilizing the counterweight portion 641, when the limiting member 64 naturally falls, the lower end of the limiting member 64 will be inclined toward the direction of the axis of the feed head 62, so that the lower ends of the limiting members 64 can cooperate to temporarily intercept the sealing steel ball. Only when the sealing steel ball is subjected to the punching pressure of the pressure assembly 7 can it break through the interception of the limiting members 64 and finally be pressed into the oiling port of the outer shuttle 1.

[0056] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sealing device for an oil hole on an outer shuttle, characterized in that: include: A frame (2), wherein the frame (2) plays a supporting role; A positioning assembly (3), the positioning assembly (3) being mounted on the frame (2), the driving portion (12) of the outer shuttle (1) being inserted into the positioning assembly (3), the positioning assembly (3) comprising a positioning block (33) for locating the position of the stepped surface (131) of the outer shuttle (1); A rotary adjustment component (5), wherein the rotary drive component is mounted on the frame (2), and the rotary adjustment component (5) is used to drive the outer shuttle (1) sleeved on the positioning component (3) to rotate; A positioning bin (6), the positioning bin (6) being arranged above the positioning assembly (3), the lower end of the positioning bin (6) being provided with a discharge port (621), the discharge port (621) being able to align with and communicate with the oiling hole (113) of the outer shuttle (1); A pressure component (7), the pressure component (7) being arranged above the positioning bin (6), the pressure component (7) being used to pressurize the sealing steel balls stored in the positioning bin (6) so that the sealing steel balls are pressed into the oiling holes (113).

2. A sealing device for an oil hole on an outer shuttle according to claim 1, characterized in that: The positioning component (3) comprises: A mounting seat (31), the mounting seat (31) being fixedly mounted on the frame (2), the mounting seat (31) being provided with a mounting hole (311), and the positioning block (33) being inserted into the mounting seat (31); a positioning sleeve (32), one end of the positioning sleeve (32) being inserted into the mounting hole (311), a limiting ring capable of tightly fitting with the outer surface of the mounting seat (31) being provided on the outer wall of the end of the positioning sleeve (32) extending out of the mounting hole (311), and a positioning groove (321) for inserting the driving part (12) of the outer shuttle (1) being provided on the end of the positioning sleeve (32) extending out of the mounting hole (311); A connecting block (34), the connecting block (34) being arranged on a side surface of the mounting seat (31) away from the limiting ring, and a fastening bolt (35) threadedly connected to the positioning sleeve (32) being inserted into the connecting block (34); The driving portion (12) of the outer shuttle (1) is inserted into the positioning groove (321), and the outer shuttle (1) is rotated until the stepped surface (131) of the outer shuttle (1) is tightly abutted against the positioning block (33), so that the oiling hole (113) of the outer shuttle (1) and the discharge port (621) of the positioning bin (6) are aligned and communicated with each other.

3. A sealing device for an oil hole on an outer shuttle according to claim 2, characterized in that: The rotation adjustment component (5) comprises: A friction block (51), the friction block (51) being installed at the lower end of the mounting seat (31) in a translationally movably manner, the friction block (51) being located directly below the rotating portion (11) of the outer shuttle (1), and the upper side of the friction block (51) having an inclined surface (511); a first telescopic cylinder (52), the first telescopic cylinder (52) being mounted on the frame (2), the first telescopic cylinder (52) being used to drive the friction block (51) to translate; When the friction block (51) is pushed and translated by the first telescopic cylinder (52), the inclined surface (511) of the friction block (51) can fit with the outer wall of the rotating portion (11) of the outer shuttle (1); as the friction block (51) continues to translate, the friction block (51) can drive the outer shuttle (1) to rotate by means of friction until the stepped surface (131) of the outer shuttle (1) abuts against the positioning block (33).

4. A sealing device for an oil hole on an outer shuttle according to claim 1, characterized in that: It also includes a pressing assembly (4), wherein the pressing assembly (4) includes: a second telescopic cylinder (42), the second telescopic cylinder (42) being mounted on the frame (2), the piston rod of the second telescopic cylinder (42) being arranged toward the positioning assembly (3); A rotating block (43), the rotating block (43) being mounted on the piston rod of the second telescopic cylinder (42), and a hinge support (431) being provided on a side of the rotating block (43) close to the positioning assembly (3); A clamping rod (44), the clamping rod (44) being rotatably connected to the rotating block (43) via a hinge support (431), and a guide surface (441) capable of abutting against the outer shuttle (1) being provided at one end of the clamping rod (44) close to the positioning assembly (3); An elastic reset mechanism (45), wherein two ends of the elastic reset mechanism (45) are respectively connected to the pressing rod (44) and the rotating block (43), and the elastic reset mechanism (45) is located on a side of the hinge support (431) away from the positioning assembly (3); When the outer shuttle (1) is positioned and installed in the positioning assembly (3), the clamping rod (44) can extend into the outer shuttle (1) through the connection port (112) of the outer shuttle (1) and fit into the inner shuttle receiving groove (114) of the outer shuttle (1). At this time, the elastic reset mechanism (45) is in a compressed and contracted state.

5. A sealing device for an oil hole on an outer shuttle according to claim 2, characterized in that: The positioning bin (6) comprises: A bin body (61), the upper end of the bin body (61) being fixedly connected to the upper end of the mounting seat (31), the upper end of the bin body (61) being provided with a punching opening (631), and one side of the bin body (61) being further provided with a feed opening (611); A material discharge head (62), the material discharge head (62) being detachably mounted on the lower end of the bin body (61) by means of a threaded connection, a conical cavity being arranged in the material discharge head (62), and a material discharge port (621) of the positioning bin (6) being arranged in the lower end of the material discharge head (62); The punch head of the pressure assembly (7) can extend into the bin body (61) through the punch opening (631), and the sealing steel ball can enter the bin body (61) through the feed opening (611) and finally fall into the conical cavity.

6. A sealing device for an oil hole on an outer shuttle according to claim 1, characterized in that: The discharge port (621) is provided with: A plurality of limit members (64) are arranged circumferentially around the axis of the blanking head (62), the upper end of each limit member (64) being rotatably connected to the inner wall of the blanking head (62), and the diameter of the inscribed circle enclosed by the upper ends of each limit member (64) being larger than the diameter of the sealing steel ball; A counterweight portion (641) is provided at the lower end of each of the limiting members (64) and on a side away from the axis of the blanking head (62), and the lower end of each of the limiting members is inclined in a circumferential direction of the blanking head (62) under the action of the counterweight portion (641); When each of the limiting members (64) is in a naturally hanging state, the diameter of the minimum inscribed circle formed by the lower ends of each of the limiting members (64) is smaller than the diameter of the sealing steel ball; when the lower ends of each of the limiting members (64) are swung in a direction away from the blanking head (62) by an external force, the diameter of the minimum inscribed circle between each of the limiting members (64) is the same as the diameter of the sealing steel ball.

7. A sealing device for an oil hole on an outer shuttle according to claim 6, characterized in that: The inner wall of the lower end of the blanking head (62) is provided with: Avoidance grooves (622), wherein a plurality of avoidance grooves (622) are arranged equidistantly in the circumferential direction around the axis of the discharge port (621), and each of the limiting members (64) is respectively arranged in each avoidance groove (622); A first semicircular hook (623), wherein the first semicircular hook (623) is provided with a plurality of paths, each of the first semicircular hooks (623) is respectively arranged in each path of the avoidance groove (622), and each of the first semicircular hooks (623) is arranged upward; Wherein, a second semicircular hook (642) is provided at the upper end of each of the limiting members (64), and the second semicircular hook (642) can hook the first semicircular hook (623), and when the second semicircular hook (642) and the first semicircular hook (623) are hooked with each other, the limiting member (64) can rotate with the axis of the second semicircular hook (642) as the center of the circle.

8. A sealing device for an oil hole on an outer shuttle according to claim 6, characterized in that: It also includes a steel ball automatic supply component (8), the steel ball automatic supply component (8) comprising: A vibration plate (81), the vibration plate (81) being arranged on the frame (2), the vibration plate (81) being used to vibrate and output sealing steel balls, the vibration plate (81) having an extended discharge section; an air pipe (82), wherein both ends of the air pipe (82) are respectively connected to the discharge end of the vibration plate and the feed port (611) of the positioning bin (6), and an end of the extended discharge section away from the vibration plate (81) is inserted into the air pipe (82); A telescopic motor (83), wherein two telescopic motors (83) are arranged along the length direction of the extended discharge section, the two telescopic motors (83) are respectively arranged on both sides of the extended discharge section, and the motor shafts of the two telescopic motors (83) can be inserted into the extended discharge section, and a spacing is left between the motor shafts of the two telescopic motors (83) for only a single sealing steel ball to pass through; An air pump (84), wherein an air outlet end of the air pump (84) is connected to an end of the air pipe (82) away from the positioning chamber (6) through a branch pipe, the branch pipe is located on a side of the telescopic motor (83) close to the vibration plate, and an end of the branch pipe connected to the air pipe (82) is inclined toward the direction of the telescopic motor (83).

9. A sealing device for an oil hole on an outer shuttle according to claim 6, characterized in that: The pressure component (7) comprises: A press machine, the press machine is mounted on a frame (2), the lower end of the punch of the press machine is inserted into the upper end of the bin body (61), and the punch of the press machine is coaxially arranged with the discharge port (621).

Images