Wedge-shaped clamping tongue type positioner and using method thereof

Abstract

The invention discloses a wedge-shaped clamping tongue type positioner and a using method thereof, and relates to the technical field of workpiece positioning. The wedge-shaped clamping tongue type positioner comprises a base, a positioning disc, a blind rivet, a clamping assembly and a driving assembly, the clamping assembly comprises a plurality of clamping tongues, the clamping tongues abut against the peripheral side portion of the blind rivet or are separated from the blind rivet, the driving assembly comprises a plurality of driving blocks, and the driving blocks correspond to the clamping tongues; driving grooves are formed in the clamping tongues, first sliding faces are arranged on the inner walls of the two sides of each driving groove respectively, the first sliding faces incline inwards in the direction from the base to the positioning disc, second sliding faces are arranged on the two sides of each driving block respectively, and the driving blocks are contained in the driving grooves of the corresponding clamping tongues in a sliding mode; the two first sliding faces are correspondingly attached to the two second sliding faces respectively. According to the wedge-shaped clamping tongue type positioner, rapid disassembly and assembly of the positioning disc and the base can be achieved, and the machining efficiency of a machine tool is improved.

Description

Technical Field

[0001] This application relates to the field of workpiece positioning technology, and in particular to a wedge-shaped latch positioner and its usage method. Background Technology

[0002] A workpiece locator is a device installed on a machine tool to position and load workpieces. It generally consists of a base and a locating plate. When using a workpiece locator, the base must be pre-fixed in the corresponding position on the machine tool, and then the workpiece is loaded onto the locating plate before processing can begin. However, with existing workpiece locators, because the locating plate is fixed relative to the base, and the base is fixed to the machine tool, when a workpiece on the locating plate is finished and a new workpiece needs to be replaced, the machine tool must first be stopped, and then restarted after the workpiece replacement is completed. This is not only time-consuming and labor-intensive, but also significantly reduces the machine tool's processing efficiency. Summary of the Invention

[0003] One objective of this application is to overcome the shortcomings of the prior art and provide a wedge-shaped latch positioner.

[0004] The wedge-shaped latch-type positioner provided in this application adopts the following technical solution: A wedge-shaped latch-type locator includes a base and a locating plate disposed on the base. One end of the locating plate is provided with a pull stud. The base is provided with a first chamber. The pull stud is partially housed in the first chamber. The peripheral side of the first chamber is provided with a plurality of sliding grooves spaced apart around its circumference. The length direction of the sliding grooves is consistent with the radial direction of the base. The wedge-shaped latch positioner further includes a clamping assembly and a driving assembly. The clamping assembly includes multiple latches that correspond one-to-one with the multiple slide grooves. Each latch is slidably disposed in the slide groove along its length. The latch has a first position and a second position during its sliding stroke. When the latch is in the second position, the latch is disengaged from the pull stud. When the latch is in the first position or a position other than the first and second positions, the latch abuts against the pull stud. The drive assembly includes a first slide seat slidably disposed in the first chamber along the direction from the base to the positioning disk, and a first air hole opened on the base and communicating with the first chamber. The first slide seat includes a first end near the positioning disk, and a plurality of drive blocks are spaced apart on the periphery of the first end. The plurality of drive blocks correspond to the plurality of latches. The latch has a drive groove, and the inner walls on both sides of the drive groove have a first sliding surface. The first sliding surface is inclined inward along the direction from the base to the positioning plate. The two sides of the drive block have a second sliding surface. The drive block is slidably accommodated in the drive groove of the corresponding latch. The two first sliding surfaces are respectively in contact with the two second sliding surfaces.

[0005] By adopting the above technical solution, the positioning plate and the base can be quickly disassembled and assembled. In this way, when changing workpieces, the workpiece and the overall structure of the positioning plate can be directly removed from the base during the machining gap of the machine tool, and the pre-assembled new workpiece and the overall structure of the positioning plate can be installed into the base without stopping the machine tool, which greatly improves the machining efficiency of the machine tool. At the same time, after compressed air is introduced into the first air hole, the first sliding surface and the second sliding surface can cooperate with each other during the movement of the first slide and realize the sliding of the latch, eliminating the need for other driving components, which not only simplifies the structure but also saves costs.

[0006] Preferably, the first slide divides the first chamber into a chamber a close to the positioning plate and a chamber b far from the positioning plate. There are multiple first air holes, including at least one air hole a communicating with the chamber a and at least one air hole b communicating with the chamber b.

[0007] By adopting the above technical solution, air holes a and b can respectively vent to chamber a and chamber b, so as to realize the sliding of the first slide block in the first chamber.

[0008] Preferably, the first end has a first groove, and the circumferential side of the first groove has a plurality of slots spaced apart. The plurality of slots correspond one-to-one with the plurality of latches. Each slot has two driving blocks, which are respectively fitted to the two side walls of the slot. The two sides of the latch in the width direction have driving grooves, and the two driving blocks in each slot are respectively housed in the two driving grooves located on the corresponding sides of the latch.

[0009] By adopting the above technical solution, the two drive blocks can respectively cooperate with the drive grooves on both sides of the tab width direction and drive the tab to slide, effectively improving the sliding stability of the tab.

[0010] Preferably, the base includes a seat body and a seat cover, the first chamber is formed between the seat body and the seat cover, the seat cover includes a cover body and a cover ring disposed at one end of the cover body near the seat body, the cover ring includes a first cover ring and a second cover ring, the diameter of the first cover ring is the same as that of the cover body and it abuts against the peripheral side wall of the seat body, the second cover ring is disposed in the middle of the cover body and inserted into the first groove, the peripheral side of the first cover ring has a plurality of first tongue holes, the peripheral side of the second cover ring has a plurality of second tongue holes, the plurality of first tongue holes and the plurality of second tongue holes correspond one-to-one, and the corresponding first tongue hole and second tongue hole form the sliding groove, the two ends of the latch pass through the corresponding first tongue hole and second tongue hole respectively.

[0011] By adopting the above technical solution, the first and second tongue holes can serve as sliding guides for the latches, effectively preventing the latches from shifting during the sliding process and ensuring the clamping effect of multiple latches on the rivets.

[0012] Preferably, the peripheral portion of the first end is provided with a plurality of spring grooves spaced apart, the opening of the spring grooves is facing the seat cover, each spring groove contains a spring, and the end of the spring extends out of the spring groove and is connected to the seat cover.

[0013] By adopting the above technical solution, the two ends of the spring can abut against the first slide block and the seat cover respectively, which can not only limit the sliding of the first slide block along the direction from the base to the positioning plate, but also assist in pushing the first slide block to slide along the direction from the positioning plate to the base.

[0014] Preferably, the seat body includes a hollow outer seat body and an inner seat body connected to the outer seat body. The first chamber is formed between the inner seat body and the seat cover. The peripheral side of the inner seat body is provided with a plurality of ball holes, and each ball hole is provided with a movable ball. The first slide also includes a second end near the inner seat, the diameter of the second end gradually increasing along the direction from the positioning plate to the inner seat, the end of the ball bearing hole facing the second end having a first opening, the ball bearing being able to pass through the first opening and abut against the second end, and the wedge-shaped latch positioner also includes a drive member for driving the movement of the ball bearing.

[0015] By adopting the above technical solution, the ball can press against the second end under the push of the driving component and roll along the inclined outer surface of the second end, pushing the second end away from the positioning plate, thereby realizing the sliding of the first slide block along the direction from the positioning plate to the base.

[0016] Preferably, a second chamber is formed between the inner seat and the outer seat. The driving member includes a second slide seat slidably disposed in the second chamber along the direction from the inner seat to the outer seat, a second air hole opened on the outer seat and communicating with the second chamber, and a second groove opened on the second slide seat for accommodating the inner seat. The groove diameter of the second groove gradually increases along the direction from the outer seat to the inner seat. The end of the ball bearing hole facing the second slide seat has a second opening, and the ball bearing can pass through the second opening and abut against the inner wall of the second groove.

[0017] By adopting the above technical solution, the second slide can push the ball during its sliding process, so that the ball presses against or disengages from the second end, thereby realizing the sliding of the first slide.

[0018] Preferably, the second slide divides the second chamber into a chamber c near the inner seat and a chamber d near the outer seat. There are multiple second air holes, including at least one air hole c communicating with the chamber c and at least one air hole d communicating with the chamber d.

[0019] By adopting the above technical solution, air holes c and d can be vented to chambers c and d respectively, so as to realize the sliding of the second slide in the second chamber.

[0020] Preferably, the latch is provided with an air guide groove in a circumferential direction, and the base is also provided with a third air hole. The third air hole is connected to the sliding groove. When the latch is in the second position, the air guide groove is connected to the third air hole. When the latch is in the first position or a position other than the first and second positions, the latch blocks the third air hole.

[0021] By adopting the above technical solution, the clamping status of multiple latches on the rivet can be effectively detected, avoiding the rivet from disengaging from the latch during workpiece processing and thus affecting the workpiece processing quality.

[0022] Another objective of this application is to provide a method of using a wedge-shaped latch positioner.

[0023] The method of using a wedge-shaped latch positioner provided in this application adopts the following technical solution: A method of using a wedge-shaped latch positioner, characterized in that: the method includes an assembly and disassembly method for the wedge-shaped latch positioner as described in any one of claims 2-9, and a clamping and detection method for the wedge-shaped latch positioner as described in claim 9; The assembly and disassembly method includes a clamping method and a disassembly method. The clamping method includes: sending the pull stud into the first chamber, and then introducing compressed air into the chamber a through the air hole a. The compressed air pushes the first slide block to move along the direction from the positioning plate to the base. The first slide block drives multiple drive blocks to move along the direction from the positioning plate to the base. The second sliding surfaces on the multiple drive blocks respectively press the first sliding surfaces on the corresponding latches during their respective sliding processes. The multiple latches move to the first position and abut against the periphery of the pull stud under the relative compression of the corresponding first sliding surfaces and second sliding surfaces. The disassembly method includes: introducing compressed air into the chamber b through the air hole b; the compressed air pushes the first slide block to move along the direction from the base to the positioning plate; the first slide block drives multiple drive blocks to move along the direction from the base to the positioning plate; the second sliding surfaces on the multiple drive blocks respectively press the first sliding surfaces on the corresponding latches during their respective sliding processes; the multiple latches move to a second position or a position other than the first and second positions under the relative pressing of the corresponding first sliding surfaces and second sliding surfaces and disengage from the pull stud; then the pull stud can be removed from the first chamber. The clamping detection method includes: introducing compressed air into the slide groove through the third air hole, using a gas flow sensor to detect the gas flow at the slide groove opening and outputting a flow signal; if the output flow signal is large, it indicates that the wedge-shaped latch positioner is in a relaxed state; if the output flow signal is small or there is no flow signal output, it indicates that the wedge-shaped latch positioner is in a clamped state.

[0024] By adopting the above technical solution, not only can the positioning plate and the base be quickly disassembled and assembled, but the clamping status of the positioning plate and the base can also be detected, effectively ensuring the clamping strength between the positioning plate and the base.

[0025] In summary, the present invention has at least one of the following beneficial technical effects: (1) The wedge-shaped latch positioner of this application can realize the quick assembly and disassembly of the positioning plate and the base. In this way, when changing the workpiece, the workpiece and the overall structure of the positioning plate can be directly separated from the base during the machining gap of the machine tool, and the pre-assembled new workpiece and the overall structure of the positioning plate can be installed into the base without stopping the machine tool, which greatly improves the machining efficiency of the machine tool. (2) The wedge-shaped latch positioner of this application can not only realize the quick assembly and disassembly of the positioning plate and the base, but also detect the clamping status of the positioning plate and the base, effectively ensuring the clamping strength between the positioning plate and the base. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural schematic diagram of the wedge-shaped latch positioner in the embodiments of this application; Figure 2 yes Figure 1 Exploded view; Figure 3 This is a schematic diagram of the axial cross section of the wedge-shaped latch positioner in the clamping state in the embodiment of this application; Figure 4 This is a schematic diagram of the axial cross-section of the wedge-shaped latch positioner in the relaxed state in the embodiment of this application.

[0027] Marked in the attached diagram: 1. Base; 11. Seat body; 111. Outer seat body; 1111. Third limiting ring; 112. Inner seat body; 1121. First limiting ring; 1122. Second limiting ring; 1123. Opening; 113. Ball bearing hole; 114. Ball bearing; 115. Second chamber; 1151. Chamber c; 1152. Chamber d; 12. Seat cover; 121. Cover body; 122. Cover ring; 1221. First cover ring; 1222. Second cover ring; 123. First tongue hole; 124. Second tongue hole; 13. Third air hole; 2. Positioning plate; 3. Pull rivet; 4. First chamber; 41. Chamber a; 42. Chamber b; 5. Slide groove; 6. Clamping assembly; 61. Clamping tongue; 62. Drive groove; 621. First sliding surface; 63. Air guide groove; 7. Drive assembly; 71. First slide; 711. First end; 712. Drive block; 713. Second sliding surface; 714. First groove; 715. Slot; 716. Spring groove; 717. Second end; 72. First air hole; 721. Air hole a; 722. Air hole b; 73. Spring; 8. Driving component; 81. Second slide block; 82. Second air hole; 821. Air hole c; 822. Air hole d; 83. Second groove; 84. Third groove; 85. Fourth groove. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0029] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0030] See Figure 1-4As shown, a wedge-shaped latch-type positioner includes a base 1, a positioning disk 2 coaxially mounted on the base 1, a clamping assembly 6, and a driving assembly 7. A pull pin 3 is coaxially connected to the bottom of the positioning disk 2. A first chamber 4 is provided inside the base 1. The pull pin 3 is partially housed in the first chamber 4. Three sliding grooves 5 are spaced around the periphery of the first chamber 4. The length direction of the sliding grooves 5 is consistent with the radial direction of the base 1.

[0031] Combination Figure 2 As shown, the clamping assembly 6 includes three latches 61 corresponding one-to-one with the three slide grooves 5, each latch 61 being slidably disposed in the slide groove 5 along the length direction of the slide groove 5; as Figure 3-4 As shown, the latch 61 has a first position and a second position during its sliding stroke. When the latch 61 is in the second position, the latch 61 is disengaged from the pull stud 3. When the latch 61 is in the first position or a position other than the first and second positions, the latch 61 abuts against the pull stud 3.

[0032] Combination Figure 2 As shown, the drive assembly 7 includes a first slide block 71 slidably disposed in the first chamber 4 along the vertical direction, and a first air hole 72 opened on the base 1 and communicating with the first chamber 4. The first slide block 71 includes a first end 711 located at its upper end, and a first groove 714 is opened on the first end 711. Three slots 715 are spaced apart on the circumferential side of the first groove 714. The three slots 715 correspond one-to-one with three latches 61. Two drive blocks 712 are respectively disposed in each slot 715, and the two drive blocks 712 respectively engage with the slot 715. The two sides of the groove wall are fitted together. The two sides of the latch 61 in the width direction are respectively provided with drive grooves 62. The two drive blocks 712 located in each groove 715 are respectively housed in the two drive grooves 62 located on the two sides of the corresponding latch 61. The inner walls of each drive groove 62 have a first sliding surface 621. The first sliding surface 621 is inclined inward along the direction from the base 1 to the positioning plate 2. The two sides of the drive block 712 have a second sliding surface 713. The two first sliding surfaces 621 are respectively fitted with the two second sliding surfaces 713.

[0033] The combination of three latches 61 and pull studs 3 enables rapid assembly and disassembly of the positioning disc 2 and the base 1. When changing workpieces, the workpiece and the overall structure of the positioning disc 2 can be directly removed from the base 1 during the machining gap of the machine tool, and the pre-assembled new workpiece and the overall structure of the positioning disc 2 can be installed into the base 1 without stopping the machine tool, which greatly improves the machining efficiency of the machine tool. At the same time, after compressed air is introduced into the first air hole 72, the first sliding surface 621 and the second sliding surface 713 can cooperate with each other during the movement of the first slide 71 to realize the sliding of the latches 61. There is no need to use other drive structures, which not only simplifies the structure but also saves costs.

[0034] In this embodiment, the first slide block 71 divides the first chamber 4 into chambers a41 and b42 arranged vertically. There are two first air holes 72, including air hole a721 communicating with chamber a41 and air hole b722 communicating with chamber b42. Compressed air is introduced into air hole a721, pushing the first slide block 71 downwards. The second sliding surfaces 713 on the inner side of the multiple drive blocks 712 press against the corresponding first sliding surfaces 621, pushing the three latches 61 to close relative to each other and clamp the pull stud 3. Compressed air is introduced into air hole b722, pushing the first slide block 71 upwards. The second sliding surfaces 713 on the outer side of the multiple drive blocks 712 press against the corresponding first sliding surfaces 621, pushing the three latches 61 to open relative to each other. At this time, the pull stud 3 can be easily removed from between the three latches 61.

[0035] In this embodiment, combined with Figure 3-4 As shown, the base 1 includes a seat cover 12 and a seat body 11 arranged vertically. A first chamber 4 is formed between the seat body 11 and the seat cover 12. The seat cover 12 includes a cover body 121 and a cover ring 122 disposed at the lower end of the cover body 121. The cover ring 122 includes a first cover ring 1221 and a second cover ring 1222. The diameter of the first cover ring 1221 is the same as that of the cover body 121 and it abuts against the peripheral side wall of the seat body 11. The second cover ring 12221 is disposed in the middle of the cover body 121 and inserted into the first groove 714. The peripheral side of the first cover ring 1221 has three first tongue holes 123 and the peripheral side of the second cover ring 1222 has three second tongue holes 124. The three first tongue holes 123 and the three second tongue holes 124 correspond one-to-one. The two ends of the latch 61 are respectively inserted into the corresponding first tongue holes 123 and second tongue holes 124. The first tongue hole 123 and the second tongue hole 124 can serve as sliding guides for the latch 61, effectively preventing the latch 61 from shifting during sliding and ensuring the clamping effect of the three latches 61 on the pull stud 3.

[0036] In this embodiment, nine spring grooves 716 are spaced apart on the periphery of the first end 711, with the openings of the spring grooves 716 facing upwards. Each spring groove 716 houses a spring 73, with the end of the spring 73 extending out of the spring groove 716 and connecting to the seat cover 12. The two ends of the spring 73 can respectively abut against the first slide block 71 and the seat cover 12, which not only limits the upward sliding of the first slide block 71 but also assists in pushing the first slide block 71 downwards.

[0037] Specifically, when compressed air is introduced into chamber b42 and the first slide block 71 is driven to slide upward, the first end 711 abuts against the spring 73, compressing the spring 73. The spring 73 has a restoring force, which can prevent the first slide block 71 from sliding excessively. When compressed air is introduced into chamber a41 and the first slide block 71 is driven to slide downward, the restoring force of the spring 73 can cooperate with the compressed air to push the first slide block 71 together. This not only reduces the amount of compressed air introduced, saving costs, but also increases the sliding speed of the first slide block 71, thereby increasing the clamping speed of the positioning plate 2 and the base 1.

[0038] In this embodiment, combined with Figure 3-4 As shown, the seat 11 includes a hollow outer seat 111 and an inner seat 112 connected within the outer seat 111. A first chamber 4 is formed between the inner seat 112 and the seat cover 12. A first limiting ring 1121 is provided around the periphery of the inner seat 112, and a second limiting ring 1122 is connected inside the inner seat 112. The first limiting ring 1121 and the second limiting ring 1122 can respectively abut against the periphery and bottom of the first end 711 to achieve sliding limitation of the first slide 71. An opening 1123 through which the bottom of the first slide 71 protrudes is provided at the bottom of the inner seat 112.

[0039] The inner seat 112 has four ball holes 113 on its periphery, and each ball hole 113 is provided with a movable ball 114. A second chamber 115 is formed between the inner seat 112 and the outer seat 111.

[0040] The first slide block 71 also includes a second end 717 near the inner seat body 112. The diameter of the second end 717 gradually increases along the direction from the positioning disk 2 to the inner seat body 112. The end of the ball hole 113 facing the second end 717 has a first opening. The ball 114 can pass through the first opening and abut against the second end 717.

[0041] The wedge-shaped latch positioner also includes a drive component 8 for driving the movement of the ball bearing 114. The drive component 8 includes a second slide 81 slidably disposed in the second chamber 115 along the direction from the inner seat 112 to the outer seat 111, a second air hole 82 opened on the outer seat 111 and communicating with the second chamber 115, and a second groove 83 opened on the second slide 81 for accommodating the inner seat 112. The groove diameter of the second groove 83 gradually increases along the direction from the outer seat 111 to the inner seat 112. The end of the ball bearing hole 113 facing the second slide 81 has a second opening, through which the ball bearing 114 can pass and abut against the inner wall of the second groove 83. A third limiting ring 1111 is provided at the inner bottom of the outer seat 111 for abutting against the second slide 81.

[0042] With the above configuration, after compressed air is introduced into the second air hole 82, the compressed air can push the second slide block 81 to slide. During its sliding process, the second slide block 81 is squeezed or disengaged from the ball bearing 114 by the inclined inner wall of the second groove 83. Under the action of the inner wall of the second groove 83, the ball bearing 114 is squeezed or disengaged from the inclined outer surface of the second end 717, thereby pushing the first slide block 71 to slide in the vertical direction. At the same time, compressed air is introduced into the first air hole 72 and the second air hole 82. The two streams of compressed air can cooperate to push the first slide block 71 to slide, effectively increasing the sliding speed of the first slide block 71, thereby increasing the assembly and disassembly speed of the positioning plate 2 and the base 1.

[0043] In this embodiment, the second slide 81 divides the second chamber 115 into chambers c1151 and d1152 arranged vertically. There are two second air holes 82, including air hole c821 communicating with chamber c1151 and air hole d822 communicating with chamber d1152.

[0044] Compressed air is introduced into the air hole c821, which pushes the second slide 81 downward. During the sliding of the second slide 81, the inclined inner wall of the second groove 83 gradually moves away from the ball 114. Then, the compressed air enters the inner seat 112 and pushes the first slide 71 upward, thereby releasing the pull stud 3. Compressed air is introduced into the air hole d822, which pushes the second slide 81 upward. During the sliding of the second slide 81, the inclined inner wall of the second groove 83 pushes the ball 114. Under the thrust, the ball 114 squeezes the inclined surface of the second end 717 and squeezes the second end 717 downward. The first slide 71 slides downward under the squeezing action, thereby clamping the pull stud 3.

[0045] In this embodiment, combined with Figure 3-4 As shown, the second slide 81 is also provided with a third groove 84 for accommodating the bottom of the inner seat 112. The second groove 83 is located above the third groove 84 and communicates with the third groove 84. A fourth groove 85 is also provided above the second groove 83. The included angle between the two opposite groove walls of the fourth groove 85 is greater than the included angle between the two opposite groove walls of the second groove 83. After the ball 114 moves to the groove wall of the fourth groove 85, it can completely disengage from the first opening, thus avoiding interference of the ball 114 with the rise of the first slide 71.

[0046] In this embodiment, combined with Figure 2As shown, a circumferential air guide groove 63 is provided on the latch 61, and a third air hole 13 is also provided on the base 1. The third air hole 13 is connected to the slide groove 5. When the latch 61 is in the second position, the air guide groove 63 is connected to the third air hole 13; when the latch 61 is in the first position or a position other than the first and second positions, the latch 61 blocks the third air hole 13. In this way, by simply connecting a gas flow sensor to the opening of the slide groove 5, the clamping status of the three latches 61 on the pull stud 3 can be effectively detected and adjusted by the gas flow rate leaking inside and outside the slide groove 5, thus preventing the pull stud 3 from disengaging from the latches 61 during workpiece processing and affecting the workpiece processing quality.

[0047] Specifically, when the latches 61 are in the second position, the three latches 61 clamp the pull pin 3. At this time, the air guide groove 63 is connected to the third air hole 13, and air is introduced into the third air hole 13. Most of the gas can flow out of the slide groove 5 through the air guide groove 63. At this time, the gas flow sensor can detect a large gas flow. Therefore, if the gas flow sensor outputs a large flow signal, it indicates that the three latches 61 have clamped the pull pin 3. When the latches 61 are in the first position or a position other than the first and second positions, the three latches 61 disengage from the pull pin 3. At this time, the latches 61 block the third air hole 13, and air is introduced into the third air hole 13. The gas cannot enter the slide groove 5 because it is blocked by the latches 61. At this time, the gas flow sensor can only detect a small gas flow or cannot detect the gas flow. Therefore, if the gas flow sensor outputs a small flow signal or does not output a flow signal, it indicates that the three latches 61 have disengaged from the pull pin 3. At this time, the pull pin 3 can be removed from between the three latches 61.

[0048] This embodiment also discloses a method for using the above-mentioned wedge-shaped latch positioner, which includes an assembly / disassembly method and a clamping / detection method.

[0049] The assembly and disassembly methods include clamping and disassembly. The clamping method includes: inserting the pull stud 3 into the first chamber 4, and then introducing compressed air into the chamber a41 through the air hole a721. The compressed air pushes the first slide block 71 to move along the direction from the positioning plate 2 to the base 1. The first slide block 71 drives multiple drive blocks 712 to move along the direction from the positioning plate 2 to the base 1. The second sliding surfaces 713 on the multiple drive blocks 712 respectively press the first sliding surfaces 621 on the corresponding latches 61 during their respective sliding processes. Under the relative compression of the corresponding first sliding surfaces 621 and second sliding surfaces 713, the three latches 61 move to the first position and abut against the periphery of the pull stud 3.

[0050] The disassembly method includes: introducing compressed air into the chamber b42 through the air hole b722, the compressed air pushing the first slide 71 to move along the direction from the base 1 to the positioning plate 2, the first slide 71 driving multiple drive blocks 712 to move along the direction from the base 1 to the positioning plate 2, the second sliding surfaces 713 on the multiple drive blocks 712 respectively pressing the first sliding surfaces 621 on the corresponding latches 61 during their respective sliding process, the three latches 61 move to the second position or a position other than the first position and the second position under the relative pressing of the corresponding first sliding surfaces 621 and second sliding surfaces 713 and disengage from the pull stud 3, and then the pull stud 3 can be removed from the first chamber 4.

[0051] The clamping detection method includes: introducing compressed air into the slide groove 5 through the third air hole 13, using a gas flow sensor to detect the gas flow at the opening of the slide groove 5 and outputting a flow signal. If the output flow signal is large, it indicates that the wedge-shaped latch positioner is in a relaxed state; if the output flow signal is small or there is no flow signal output, it indicates that the wedge-shaped latch positioner is in a clamped state.

[0052] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A wedge-shaped latch-type locator, comprising a base (1) and a locating disk (2) disposed on the base (1), characterized in that: One end of the positioning plate (2) is provided with a pull stud (3), the base (1) is provided with a first chamber (4), the pull stud (3) is partially housed in the first chamber (4), and the periphery of the first chamber (4) is provided with a plurality of sliding grooves (5) spaced apart around its periphery, the length direction of the sliding grooves (5) is consistent with the radial direction of the base (1). The wedge-shaped latch positioner further includes a clamping assembly (6) and a driving assembly (7). The clamping assembly (6) includes a plurality of latches (61) corresponding one-to-one with the plurality of slide grooves (5). Each latch (61) is slidably disposed in the slide groove (5) along the length direction of the slide groove (5). The latch (61) has a first position and a second position during its sliding stroke. When the latch (61) is in the second position, the latch (61) is disengaged from the pull stud (3). When the latch (61) is in the first position or a position other than the first and second positions, the latch (61) abuts against the pull stud (3). The drive assembly (7) includes a first slide (71) slidably disposed in the first chamber (4) along the direction from the base (1) to the positioning disk (2), and a first air hole (72) opened on the base (1) and communicating with the first chamber (4). The first slide (71) includes a first end (711) near the positioning disk (2). A plurality of drive blocks (712) are spaced apart on the periphery of the first end (711). The plurality of drive blocks (712) correspond to the plurality of latches (61). The latch (61) is provided with a drive groove (62), and the inner walls on both sides of the drive groove (62) are respectively provided with a first sliding surface (621). The first sliding surface (621) is inclined inward along the direction from the base (1) to the positioning plate (2). The two sides of the drive block (712) are respectively provided with a second sliding surface (713). The drive block (712) is slidably accommodated in the drive groove (62) of the corresponding latch (61). The two first sliding surfaces (621) are respectively in contact with the two second sliding surfaces (713).

2. The wedge-shaped latch-type positioner according to claim 1, characterized in that: The first slide (71) divides the first chamber (4) into a chamber a (41) close to the positioning disk (2) and a chamber b (42) away from the positioning disk (2). There are multiple first air holes (72), including at least one air hole a (721) communicating with the chamber a (41) and at least one air hole b (722) communicating with the chamber b (42).

3. A wedge-shaped latch-type positioner according to claim 1 or 2, characterized in that: The first end (711) is provided with a first groove (714), and a plurality of slots (715) are provided at intervals on the circumferential side of the first groove (714). The plurality of slots (715) correspond one-to-one with the plurality of latches (61). Two drive blocks (712) are respectively provided in each slot (715). The two drive blocks (712) are respectively attached to the two side walls of the slot (715). The two sides of the latch (61) in the width direction are respectively provided with drive grooves (62). The two drive blocks (712) located in each slot (715) are respectively accommodated in the two drive grooves (62) located on the two sides of the corresponding latch (61).

4. A wedge-shaped latch-type positioner according to claim 1 or 2, characterized in that: The base (1) includes a base body (11) and a cover (12). The first chamber (4) is formed between the base body (11) and the cover (12). The cover (12) includes a cover body (121) and a cover ring (122) disposed at one end of the cover body (121) near the base body (11). The cover ring (122) includes a first cover ring (1221) and a second cover ring (1222). The diameter of the first cover ring (1221) is the same as that of the cover body (121) and it abuts against the peripheral sidewall of the base body (11). The second cover ring (1222) is disposed at the end of the cover body (121). The body (121) is inserted into the first groove (714) in the middle. The first cover ring (1221) has a plurality of first tongue holes (123) on its periphery and the second cover ring (1222) has a plurality of second tongue holes (124) on its periphery. The plurality of first tongue holes (123) and the plurality of second tongue holes (124) correspond one-to-one. The corresponding first tongue hole (123) and the second tongue hole (124) form the sliding groove (5). The two ends of the latch (61) are respectively inserted into the corresponding first tongue hole (123) and the second tongue hole (124).

5. A wedge-shaped latch-type positioner according to claim 4, characterized in that: The first end (711) has a plurality of spring grooves (716) spaced apart on its periphery. The opening of the spring groove (716) faces the seat cover (12). Each spring groove (716) contains a spring (73). The end of the spring (73) passes through the spring groove (716) and is connected to the seat cover (12).

6. A wedge-shaped latch-type positioner according to claim 4, characterized in that: The seat (11) includes a hollow outer seat (111) and an inner seat (112) connected inside the outer seat (111). The first chamber (4) is formed between the inner seat (112) and the seat cover (12). The inner seat (112) has a plurality of ball holes (113) on its peripheral side, and each ball hole (113) is provided with a movable ball (114). The first slide (71) also includes a second end (717) near the inner seat (112), the diameter of the second end (717) gradually increases along the direction from the positioning disk (2) to the inner seat (112), the ball hole (113) has a first opening at one end facing the second end (717), the ball (114) can pass through the first opening and abut against the second end (717), and the wedge-shaped latch positioner also includes a drive member (8) for driving the ball (114) to move.

7. A wedge-shaped latch-type positioner according to claim 6, characterized in that: A second chamber (115) is formed between the inner seat (112) and the outer seat (111). The driving member (8) includes a second slide (81) slidably disposed in the second chamber (115) along the direction from the inner seat (112) to the outer seat (111), a second air hole (82) opened on the outer seat (111) and communicating with the second chamber (115), and a second groove (83) opened on the second slide (81) for accommodating the inner seat (112). The groove diameter of the second groove (83) gradually increases along the direction from the outer seat (111) to the inner seat (112). The end of the ball hole (113) facing the second slide (81) has a second opening. The ball (114) can pass through the second opening and abut against the inner wall of the second groove (83).

8. A wedge-shaped latch-type positioner according to claim 7, characterized in that: The second slide (81) divides the second chamber (115) into a chamber c (1151) near the inner seat (112) and a chamber d (1152) near the outer seat (111). There are multiple second air holes (82), including at least one air hole c (821) communicating with the chamber c (1151) and at least one air hole d (822) communicating with the chamber d (1152).

9. A wedge-shaped latch-type positioner according to claim 1, characterized in that: The latch (61) is provided with an air guide groove (63) circumferentially, and the base (1) is also provided with a third air hole (13). The third air hole (13) is connected to the sliding groove (5). When the latch (61) is in the second position, the air guide groove (63) is connected to the third air hole (13). When the latch (61) is in the first position or a position other than the first and second positions, the latch (61) blocks the third air hole (13).

10. A method of using a wedge-shaped latch positioner, characterized in that: The method of use includes the assembly and disassembly method of the wedge-shaped latch positioner as described in any one of claims 2-9, and the clamping and detection method of the wedge-shaped latch positioner as described in claim 9; The assembly and disassembly method includes a clamping method and a disassembly method. The clamping method includes: sending the pull stud (3) into the first chamber (4), and then introducing compressed air into the chamber a (41) through the air hole a (721). The compressed air pushes the first slide (71) to move along the direction from the positioning plate (2) to the base (1). The first slide (71) drives multiple drive blocks (712) to move along the direction from the positioning plate (2) to the base (1). The second sliding surfaces (713) on the multiple drive blocks (712) respectively squeeze the first sliding surfaces (621) on the corresponding latches (61) during their respective sliding processes. The multiple latches (61) move to the first position and abut against the periphery of the pull stud (3) under the relative compression of the corresponding first sliding surfaces (621) and second sliding surfaces (713). The disassembly method includes: introducing compressed air into the chamber b (42) through the air hole b (722), the compressed air pushing the first slide (71) to move along the direction from the base (1) to the positioning plate (2), the first slide (71) driving multiple drive blocks (712) to move along the direction from the base (1) to the positioning plate (2), the second sliding surfaces (713) on the multiple drive blocks (712) respectively press the first sliding surfaces (621) on the corresponding latches (61) during their respective sliding processes, the multiple latches (61) move to the second position or a position other than the first position and the second position under the relative pressing of the corresponding first sliding surfaces (621) and the second sliding surfaces (713) and disengage from the pull stud (3), and then the pull stud (3) can be removed from the first chamber (4); The clamping detection method includes: introducing compressed air into the slide groove (5) through the third air hole (13), using a gas flow sensor to detect the gas flow at the opening of the slide groove (5) and outputting a flow signal. If the output flow signal is large, it indicates that the wedge-shaped latch positioner is in a relaxed state; if the output flow signal is small or there is no flow signal output, it indicates that the wedge-shaped latch positioner is in a clamped state.

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