Fluid polishing fixture anti-drop device

Abstract

The application discloses a fluid polishing jig anti-falling device, which comprises a fixing base, a limiting sleeve, a ball head plunger, a limiting pin and a jig connecting rod. In the application, the jig connecting rod can be connected with the fluid polishing jig, the fixing base can be connected with the rotating shaft of the fluid polishing machine, the limiting groove is arranged in the fixing base, the limiting pin is installed on the jig connecting rod, the limiting pin is arranged in the second axial section of the limiting groove, so that the connection between the jig connecting rod and the fixing base is realized, and the limiting sleeve is arranged to effectively prevent the limiting pin from accidentally falling out of the second axial section. When the jig connecting rod needs to be replaced, the ball head plunger is slid, so that the limiting sleeve no longer hinders the limiting pin from falling out of the second axial section, and the jig connecting rod and the fixing base are separated conveniently. Thus, the replacement operation of the jig connecting rod is simple and convenient, and the problems of screw missing or tooth slipping are effectively avoided.

Description

Technical Field

[0001] This invention relates to the field of mechanical design, and in particular to a device for preventing the detachment of a fluid polishing fixture. Background Technology

[0002] Fluid polishing is a machining process that uses a high-speed flowing liquid and the abrasive particles it carries to polish the surface of a workpiece. To ensure uniform polishing of all parts of the workpiece surface after fluid polishing, the workpiece is usually fixed on a fixture, and the workpiece is rotated by a fluid polishing machine.

[0003] Common fluid polishing fixtures are equipped with fixture connecting rods to facilitate connection with the machine's rotating shaft. Currently, these connecting rods are typically connected to the machine shaft via screws. Each time the fluid polishing fixture is replaced, the connecting rod itself must also be replaced. However, in actual machining, each replacement requires unscrewing and tightening the screws. Repeated loosening and tightening of the screws can lead to stripping, reducing connection reliability and potentially causing the connecting rod to detach during machining, resulting in collisions and damage to the fluid polishing fixture from other mechanisms. Furthermore, the need to unscrew and tighten screws for each replacement is cumbersome and inefficient. Summary of the Invention

[0004] The purpose of this invention is to provide a fluid polishing fixture anti-detachment device, which can solve one or more of the above-mentioned problems.

[0005] According to one aspect of the present invention, a fluid polishing fixture anti-detachment device is provided, comprising a fixed base, a limiting sleeve, a ball-head plunger, a limiting pin, and a fixture connecting rod.

[0006] The side of the fixed seat is provided with a plunger rotation groove and a limiting groove. The limiting groove includes a first axial section, a circumferential section, and a second axial section. One end of the circumferential section is connected to the first axial section, and the other end is connected to the second axial section. The first axial section is connected to the outside. The limiting pin is embedded in the second axial section. The limiting sleeve is sleeved on the fixed seat. The ball-head plunger is mounted on the limiting sleeve and can slide along the plunger rotation groove. The limiting pin is mounted on the fixture connecting rod.

[0007] When the ball-head plunger slides to one end of the plunger rotation groove, the notch connects with the first axial section, and the limiting pin is restricted by the limiting sleeve and cannot disengage from the second axial section.

[0008] When the ball-head plunger slides to the other end of the plunger rotation groove, the notch is connected to the second axial section, and the limiting pin, together with the limiting sleeve, can move from the second axial section to the first axial section through the circumferential section.

[0009] The beneficial effects of this invention are as follows: In this invention, the fixture connecting rod can be connected to the fluid polishing fixture, and the fixed seat can be connected to the machine shaft of the fluid polishing machine. A limiting groove is provided in the fixed seat, and a limiting pin is installed on the fixture connecting rod. By placing the limiting pin in the second axial section of the limiting groove, the connection between the fixture connecting rod and the fixed seat is achieved. A limiting sleeve is also provided to effectively prevent the limiting pin from accidentally dislodging from the second axial section, thus ensuring the reliability of the connection between the fixture connecting rod and the fixed seat. When the fluid polishing fixture needs to be replaced, the limiting sleeve can be rotated by sliding the ball plunger, allowing it to no longer obstruct the limiting pin from dislodging from the second axial section. This allows the limiting pin to move from the second axial section to the first axial section via the circumferential section and then dislodge to the outside, thus separating the fixture connecting rod from the fixed seat, i.e., disassembling the fixture connecting rod. Then, a new fixture connecting rod connected to the fluid polishing fixture is reinstalled on the fixed seat to replace the fluid polishing fixture.

[0010] Therefore, the present invention simplifies and facilitates the replacement of the fixture connecting rod, effectively improving efficiency. Moreover, it eliminates the need for unscrewing and screwing, effectively avoiding problems such as missing screws or stripped threads. This significantly reduces the probability of the fixture connecting rod detaching during the fluid polishing process, which could lead to collisions and damage between the fluid polishing fixture and other mechanisms.

[0011] In some embodiments, the fixture connecting rod includes a connecting rod body and a locking screw. The top of the connecting rod body has a screw hole, and the side of the connecting rod body has a through hole. The screw hole and the through hole are connected. The limiting pin passes through the through hole, and the locking screw is installed in the screw hole, with one end of the locking screw pressing against the limiting pin. Thus, the limiting pin can be fixed to the connecting rod body by the locking screw, allowing the limiting pin to be fixedly installed on the fixture connecting rod.

[0012] In some embodiments, the fixture connecting rod includes a connecting screw and a pressure block. The connecting rod body has a connecting section that can be connected to a fluid polishing fixture. The connecting screw is connected to the bottom of the connecting rod body, and the pressure block is mounted on the connecting screw and presses down on the fluid polishing fixture. Therefore, the pressure block effectively reduces the probability of the fluid polishing fixture detaching from the connecting section, improving the connection reliability between the fluid polishing fixture and the connecting rod body.

[0013] In some embodiments, the limiting pin has a groove, and one end of the locking screw is embedded in the groove. The groove can limit the locking screw pressed on it, reduce the probability of the locking screw disengaging from the limiting pin, and improve the reliability of the locking screw fixing the limiting pin.

[0014] In some embodiments, the fixing seat has a cavity, the limiting groove is connected to the cavity, and the top of the fixture connecting rod is embedded in the cavity. Therefore, the cavity enhances the limiting effect of the fixing seat on the fixture connecting rod and increases the contact area between the fixing seat and the fixture connecting rod, thereby improving the connection reliability between the fixture connecting rod and the fixing seat.

[0015] In some embodiments, one end of the machine tool shaft can be fitted into the cavity. Therefore, the cavity enhances the limiting effect of the mounting base on the machine tool shaft and increases the contact area between the mounting base and the machine tool shaft, thereby improving the connection reliability between the machine tool shaft and the mounting base.

[0016] In some embodiments, the present invention further includes an anti-loosening screw. The fixing base is provided with a rotating shaft connector, and the side of the rotating shaft connector is provided with a locking hole. One end of the anti-loosening screw is embedded in the rotating shaft of the machine tool, and the anti-loosening screw is embedded in the locking hole. Thus, the anti-loosening screw can achieve the fixed installation of the rotating shaft of the machine tool on the fixing base.

[0017] In some embodiments, the ball-head plunger includes a nut, a threaded body, and a plunger. The threaded body is mounted on a limiting sleeve, and the nut is mounted on the threaded body and abuts against the limiting sleeve. One end of the plunger is embedded in the threaded body, and the other end has a ball head that is slidably embedded in a plunger rotation groove. Thus, with the nut and ball head in place, the limiting sleeve is rotatably mounted on a fixed seat, and the plunger rotation groove can limit and guide the movement of the ball head, thereby restricting the rotational range of the limiting sleeve. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a fluid polishing fixture anti-detachment device according to one embodiment of the present invention.

[0019] Figure 2 This is a cross-sectional view of a schematic diagram of a fluid polishing fixture anti-detachment device according to one embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the fixing seat of the fluid polishing fixture anti-detachment device according to one embodiment of the present invention.

[0021] Figure 4 This is a cross-sectional view of the fixture connecting rod of a fluid polishing fixture anti-detachment device according to one embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the connecting rod body of the fluid polishing fixture anti-detachment device according to one embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the ball-head plunger of a fluid polishing fixture anti-detachment device according to one embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram showing the disassembly of the fixture connecting rod of the fluid polishing fixture anti-detachment device according to one embodiment of the present invention.

[0025] In the diagram: 1. Fixed seat, 2. Limiting sleeve, 3. Ball head plunger, 4. Limiting pin, 5. Fixture connecting rod, 6. Anti-loosening screw, 11. Plunger rotation groove, 12. Limiting groove, 13. Cavity, 14. Rotary shaft connector, 121. First axial section, 122. Circumferential section, 123. Second axial section, 141. Locking hole, 21. Notch, 31. Nut, 32. Screw body, 33. Plunger, 41. Groove, 51. Connecting rod body, 52. Locking screw, 511. Screw hole, 512. Through hole, 513. Connecting section, 53. Connecting screw, 54. Pressure block, 10. Fluid polishing fixture, and 20. Machine base rotating shaft. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The present invention provides a fluid polishing fixture anti-detachment device, comprising a fixed base 1, a limiting sleeve 2, a ball-head plunger 3, a limiting pin 4, and a fixture connecting rod 5.

[0028] The side of the fixed base 1 is provided with a plunger rotation groove 11 and a limiting groove 12. The limiting groove 12 includes a first axial section 121, a circumferential section 122, and a second axial section 123. One end of the circumferential section 122 is connected to one end of the first axial section 121, and the other end of the circumferential section 122 is connected to one end of the second axial section 123. The other end of the first axial section 121 is located at the bottom of the side of the fixed base 1 and is connected to the outside. The other end of the second axial section 123 is located inside the fixed base 1. The plunger rotation groove 11 is arranged parallel to the circumferential section 122. In addition, in this embodiment, both the plunger rotation groove 11 and the limiting groove 12 are preferably two. One plunger rotation groove 11 can coincide with another plunger rotation groove 11 after rotating 180° around the central axis of the fixed base 1, and one limiting groove 12 can coincide with another limiting groove 12 after rotating 180° around the central axis of the fixed base 1.

[0029] The fixed seat 1 is also provided with a cavity 13, and the first axial section 121, the circumferential section 122 and the second axial section 123 of the limiting groove 12 are all connected to the cavity 13.

[0030] The fixture connecting rod 5 includes a connecting rod body 51 and a locking screw 52. The top of the connecting rod body 51 has a screw hole 511, and the side of the connecting rod body 51 has a through hole 512, which are connected. A limiting pin 4 passes through the through hole 512, so that both ends of the limiting pin 4 protrude from both ends of the through hole 512. The locking screw 52 is fixedly installed on the screw hole 511 by threaded engagement, and one end of the locking screw 52 presses against the limiting pin 4, thereby fixing the limiting pin 4 onto the fixture connecting rod 5. The connecting rod body 51 also has a recess above the screw hole 511, and the screw head of the locking screw 52 is embedded in the recess, thereby concealing the screw head of the locking screw 52.

[0031] The limiting pin 4 is provided with a groove 41. The end of the locking screw 52 that presses on the limiting pin 4 is also embedded in the groove 41. The groove 41 can increase the contact area between the locking screw 52 and the limiting pin 4, and limit the pressing position of the locking screw 52, ​​thereby reducing the probability of the locking screw 52 coming off the limiting pin 4.

[0032] The fixture connecting rod 5 also includes a connecting screw 53 and a pressure block 54. The bottom of the side of the connecting rod body 51 is provided with a connecting section 513, which can be connected to the fluid polishing fixture 10 by a snap-fit. The connecting screw 53 is fixedly connected to the bottom of the connecting rod body 51 by a threaded engagement, and the pressure block 54 is fixedly fitted on the connecting screw 53. The pressure block 54 also presses down on the fluid polishing fixture 10, thereby improving the reliability of the connection between the fluid polishing fixture 10 and the fixture connecting rod 5.

[0033] The ball-head plunger 3 includes a nut 31, a screw body 32, and a plunger 33. The side of the limiting sleeve 2 has a hole with an internal thread, and the screw body 32 has an external thread. The screw body 32 is fixedly mounted on the limiting sleeve 2 through the threaded engagement of the internal and external threads. One end of the plunger 33 is fixedly embedded in the screw body 32 by a snap-fit ​​mechanism, and the other end of the plunger 33 has a ball head that slidably fits into the plunger rotation groove 11. This allows the ball-head plunger 3 to slide along the plunger rotation groove 11. The plunger rotation groove 11 guides and limits the sliding of the ball-head plunger 3, restricting its sliding range. The nut 31 is fixedly installed on the screw body 32 by threaded engagement, and the nut 31 abuts against the outer side of the limiting sleeve 2, so that the ball head plunger 3 is fixedly installed on the limiting sleeve 2. Thus, under the limiting of the nut 31 and the ball head, the limiting sleeve 2 can rotate around the fixed seat 1 as the ball head plunger 3 slides on the plunger rotation groove 11.

[0034] In addition, in order to ensure the smoothness of the rotation of the limiting sleeve 2 and improve the reliability of the setting of the limiting sleeve 2 on the fixed seat 1, the number of ball plungers 3 installed on the limiting sleeve 2 is preferably two, and the two ball plungers 3 can slide along the two plunger rotation grooves 11 respectively.

[0035] The two ends of the limiting pin 4 protruding from the through hole 512 are respectively embedded in the second axial section 123 of the two limiting grooves 12 of the fixed seat 1, and the top of the connecting rod body 51 of the fixture connecting rod 5 is embedded in the cavity 13.

[0036] When unobstructed, the limiting pin 4 can move between the first axial section 121 and the second axial section 123 by passing through the circumferential section 122, and when needed, the limiting pin 4 can also disengage from the position where the first axial section 121 is connected to the outside.

[0037] The limiting sleeve 2 is also provided with a notch 21, and preferably two notches 21. When the ball plunger 3 slides to one end of the plunger rotation groove 11, the two notches 21 can communicate with the first axial section 121 of the two limiting grooves 12 respectively. At the same time, the bottom of the limiting sleeve 2 can be positioned above the limiting pin 4 embedded in the second axial section 123, thereby blocking the axial movement of the limiting pin 4, so that the limiting pin 4 is restricted by the limiting sleeve 2 and cannot be dislodged from the second axial section 123.

[0038] When the ball-head plunger 3 slides to the other end of the plunger rotation groove 11, the two notches 21 can be connected to the second axial section 123 of the two limiting grooves 12 respectively. At this time, the two ends of the limiting pin 4 can also pass through the two notches 21 respectively, so as to realize the temporary connection between the limiting pin 4 and the limiting sleeve 2. Thus, the limiting pin 4, together with the limiting sleeve 2, can move from the second axial section 123 to the first axial section 121 through the circumferential section 122.

[0039] One end of the machine tool shaft 20 can also be fitted into the cavity 13. Specifically, the anti-detachment device of this fluid polishing fixture also includes an anti-detachment screw 6. The fixing base 1 is provided with a shaft connector 14. The side of the shaft connector 14 is provided with a locking hole 141. One end of the machine tool shaft 20 can extend into the cavity 13, and one end of the anti-detachment screw 6 is fitted into the end of the machine tool shaft 20 that extends into the cavity 13. The anti-detachment screw 6 is fixedly fitted into the locking hole 141 by thread engagement, thereby fixing that end of the machine tool shaft 20 into the cavity 13.

[0040] When this fluid polishing fixture anti-detachment device is in use, the machine base shaft 20 of the fluid polishing machine can be fixedly connected to the fixed base 1 through the anti-detachment screw 6. The workpiece that needs to be fluid polished can be installed on the fluid polishing fixture 10, and the fluid polishing fixture 10 can be used with the fixture connecting rod 5, which is connected to the fixture connecting rod 5.

[0041] The limiting pin 4 connected to the fixture connecting rod 5 can be embedded in the second axial section 123 and can rotate the limiting sleeve 2, so that the ball head plunger 3 slides to one end of the plunger rotating groove 11. Then the two notches 21 are connected to the first axial section 121 of the two limiting grooves 12 respectively, but not connected to the second axial section 123 of the two limiting grooves 12. Thus, the limiting pin 4 is restricted by the limiting sleeve 2 and cannot be dislodged from the second axial section 123.

[0042] Thus, the fixture connecting rod 5 is fixedly connected to the fixed base 1, that is, the fluid polishing fixture 10 is connected to the machine tool rotating shaft 20 through the fluid polishing fixture anti-detachment device. At this time, the machine tool rotating shaft 20 can rotate to drive the fluid polishing fixture 10 to rotate through the fluid polishing fixture anti-detachment device, so as to facilitate the fluid polishing processing of the workpiece set on the fluid polishing fixture 10.

[0043] When a new workpiece needs to be replaced for processing, that is, when a new fluid polishing fixture 10 with a new workpiece needs to be replaced, it is also necessary to replace the other fixture connecting rod 5 that is used in conjunction with the new fluid polishing fixture 10.

[0044] First, the original fixture connecting rod 5 needs to be disassembled. Specifically, this can be done by rotating the limiting sleeve 2, causing the ball plunger 3 to slide to the other end of the plunger rotating groove 11. Then, the two notches 21 and the second axial sections 123 of the two limiting grooves 12 will be connected respectively. The limiting sleeve 2 will no longer restrict the release of the limiting pin 4 from the second axial section 123. At this point, the fixture connecting rod 5 can be manually moved, allowing the limiting pin 4 connected to the fixture connecting rod 5 to move along the second axial section 123, thereby allowing the two notches 21 and the two limiting grooves 123 to move. The end can also pass through two notches 21 respectively to achieve a temporary connection between the limiting pin 4 and the limiting sleeve 2. At this time, the limiting pin 4 and the limiting sleeve 2 can be moved from the second axial section 123 to the first axial section 121 through the circumferential section 122. Then, the limiting pin 4 is moved along the first axial section 121 to disengage from the notch 21, that is, the connection between the limiting pin 4 and the limiting sleeve 2 is broken. Then, the limiting pin 4 is disengaged from the position where the first axial section 121 is connected to the outside, thus completing the separation of the fixture connecting rod 5 and the fixed seat 1.

[0045] Then, the two ends of the limiting pin 4 installed on the new fixture connecting rod 5 can be inserted into the first axial section 121 from the two positions where they are connected to the outside, and moved along the first axial section 121 until the two ends of the limiting pin 4 installed on the fixture connecting rod 5 pass through the two notches 21 respectively. Then the limiting pin 4 and the limiting sleeve 2 become temporarily connected. At this time, the limiting pin 4, together with the limiting sleeve 2, can be moved from the first axial section 121 to the second axial section 123 through the circumferential section 122. Then the limiting pin 4 is moved along the second axial section 123. Disengage it from notch 21, that is, disconnect the connection between the limiting pin 4 and the limiting sleeve 2, until the limiting pin 4 is embedded in the second axial section 123. Rotate the limiting sleeve 2 until the two notches 21 are connected to the first axial section 121 of the two limiting grooves 12 respectively, but not connected to the second axial section 123 of the two limiting grooves 12. Then the limiting pin 4 is restricted by the limiting sleeve 2 and cannot be dislodged from the second axial section 123, that is, the connection between the new fixture connecting rod 5 and the fixed seat 1 is completed. At this time, the new workpiece set on the new fluid polishing fixture 10 can be fluid polished.

[0046] Therefore, the present invention makes the replacement of the fixture connecting rod 5 simple and convenient, effectively improving efficiency. Moreover, it eliminates the need to unscrew and screw in screws, effectively avoiding problems such as missing screws or stripped threads. It also effectively reduces the probability of the fixture connecting rod 5 falling off during the fluid polishing process, causing the fluid polishing fixture to collide and be damaged with other mechanisms.

[0047] The above descriptions are merely some embodiments of the present invention. Those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the scope of protection of the present invention.

Claims

1. A fluid polishing fixture anti-detachment device, characterized in that, Includes a fixed seat, a limit sleeve, a ball-head plunger, a limit pin, and a fixture connecting rod. The side of the fixed seat is provided with a plunger rotation groove and a limiting groove. The limiting groove includes a first axial section, a circumferential section, and a second axial section. One end of the circumferential section is connected to the first axial section, and the other end is connected to the second axial section. The first axial section is connected to the outside. The limiting pin is embedded in the second axial section. The limiting sleeve is sleeved on the fixed seat. The ball-head plunger is mounted on the limiting sleeve and can slide along the plunger rotation groove. The limiting pin is mounted on the fixture connecting rod. The limiting sleeve also has a notch. The fixture connecting rod includes a connecting rod body and a locking screw. The top of the connecting rod body has a screw hole, and the side of the connecting rod body has a through hole. The screw hole and the through hole are connected. The limiting pin passes through the through hole, and the locking screw is installed in the screw hole. One end of the locking screw presses against the limiting pin. The fixing base has a cavity, the limiting groove is connected to the cavity, and the top of the fixture connecting rod is embedded in the cavity. When the ball-head plunger slides to one end of the plunger rotation groove, the notch connects with the first axial section, and the limiting pin is restricted by the limiting sleeve and cannot disengage from the second axial section. When the ball-head plunger slides to the other end of the plunger rotation groove, the notch is connected to the second axial section, and the limiting pin, together with the limiting sleeve, can move from the second axial section to the first axial section through the circumferential section.

2. The anti-detachment device for the fluid polishing fixture according to claim 1, characterized in that, The fixture connecting rod includes a connecting screw and a pressure block. The main body of the connecting rod has a connecting section, which can be connected to a fluid polishing fixture. The connecting screw is connected to the bottom of the main body of the connecting rod, and the pressure block is installed on the connecting screw and presses down the fluid polishing fixture.

3. The anti-detachment device for the fluid polishing fixture according to claim 1, characterized in that, The limiting pin has a groove, and one end of the locking screw is embedded in the groove.

4. The anti-detachment device for the fluid polishing fixture according to claim 1, characterized in that, One end of the organic platform shaft can be embedded in the cavity.

5. The anti-detachment device for the fluid polishing fixture according to claim 4, characterized in that, The device includes an anti-detachment screw. The fixed base is provided with a rotating shaft connector. The side of the rotating shaft connector is provided with a locking hole. One end of the anti-detachment screw is embedded in the rotating shaft of the machine. The anti-detachment screw is also embedded in the locking hole.

6. The anti-detachment device for the fluid polishing fixture according to claim 1, characterized in that, The ball-head plunger includes a nut, a screw body, and a plunger. The screw body is mounted on a limiting sleeve, and the nut is mounted on the screw body and abuts against the limiting sleeve. One end of the plunger is embedded in the screw body, and the other end is provided with a ball head, which is slidably embedded in the plunger's rotating groove.

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