Positioning jig and machining system

Abstract

The utility model relates to the technical field of positioning tools, aims to solve the technical problems that some known target pieces are low in machining yield and machining efficiency, and provides a positioning jig and a machining system. The positioning jig comprises a bearing assembly, a pressing assembly and a vacuum generating piece. The bearing assembly is used for bearing a target piece and provided with an adsorption hole used for adsorbing and fixing the target piece. The pressing assembly comprises a pressing air cylinder and a pressing piece, the pressing air cylinder is arranged on the bearing assembly, the pressing piece is connected with the pressing air cylinder, and the pressing piece is used for being driven by the pressing air cylinder to move relative to the bearing assembly so as to abut against or loosen the positioning part. And the vacuum generation piece is communicated with the adsorption hole through a first air outlet path and is communicated with the pressing air cylinder through a second air outlet path, so that the pressing piece abuts against the positioning part while the adsorption hole adsorbs the target piece, and the pressing piece loosens the positioning part while the adsorption hole stops adsorbing the target piece. The method has the beneficial effect that the machining yield and the machining efficiency of the target piece are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clamps, in particular to a positioning jig and a machining system. BACKGROUND

[0002] Some products have complex structures, and the corresponding clamps have complex disassembly and assembly processes, which affects the machining efficiency of the products. In addition, the positioning effect of the products is poor, resulting in a low machining yield of the products. CONTENT OF THE UTILITY MODEL

[0003] The present application provides a positioning jig and a machining system to solve the technical problems of low machining yield and low machining efficiency of some known target pieces.

[0004] In a first aspect, the present application provides a positioning jig for positioning a target piece, the target piece being provided with an opening, and an inner wall of the target piece being provided with a positioning portion. The positioning jig comprises a bearing assembly, a pressing assembly and a vacuum generating piece. The bearing assembly is used to bear the target piece, and the bearing assembly is provided with a suction hole used to adsorb and fix the target piece. The pressing assembly comprises a pressing cylinder and a pressing piece. The pressing cylinder is arranged on the bearing assembly, and the pressing piece is connected to the pressing cylinder. The pressing piece is used to move relative to the bearing assembly under the drive of the pressing cylinder to press against or release the positioning portion. The vacuum generating piece is connected to the suction hole through a first gas outlet, and is connected to the pressing cylinder through a second gas outlet. Thus, the suction hole adsorbs the target piece at the same time as the pressing piece presses against the positioning portion, and the suction hole stops adsorbing the target piece at the same time as the pressing piece releases the positioning portion.

[0005] According to the positioning jig of the present application, after the bearing assembly is installed with the target piece, the target piece is adsorbed by the suction hole, and the target piece is pressed and positioned by the pressing assembly pressing against the positioning portion. This can improve the reliability of the position fixation of the target piece, reduce the probability of problems such as vibration marks, size deviation and contour deviation of the target piece due to displacement during the machining process of the target piece, and also reduce the probability of deformation of the target piece during machining, thereby improving the yield of the machining of the target piece. At the same time, by controlling the vacuum generating piece to generate positive pressure or negative pressure, the suction hole adsorbing the target piece and the pressing assembly pressing against the positioning portion can be controlled synchronously, or the suction hole stopping adsorbing the target piece and the pressing assembly releasing the positioning portion can be controlled. This can simplify the control logic of the vacuum generating piece and improve the disassembly and assembly efficiency of the positioning jig, thereby further improving the machining efficiency of the target piece. Therefore, the positioning jig of the present application can improve the machining yield and machining efficiency of the target piece.

[0006] In one possible implementation manner:

[0007] The positioning parts are in plurality and are arranged on the inner wall of the target piece in a spaced manner. The pressing assemblies are in plurality and are arranged on the bearing assembly in a spaced manner along the circumference. The positioning jig further comprises a gas guide piece having a gas inlet, a first gas outlet and a plurality of second gas outlets. The number of the positioning parts, the number of the second gas outlets and the number of the pressing assemblies are the same. The vacuum generator is connected to the gas inlet through a gas supply path. The first gas outlet is connected to the adsorption hole through a first gas path. The second gas outlets are respectively connected to the pressing cylinders through a plurality of second gas paths.

[0008] In a possible implementation,

[0009] The target piece is provided with a cavity. One side of the target piece is provided with an opening communicating with the cavity. The inner wall of the cavity is provided with the positioning parts. The bearing assembly comprises a mounting piece and a positioning piece. The positioning piece is arranged on the mounting piece. The positioning piece is used to extend into the cavity to position the target piece. The surface of the positioning piece away from the mounting piece is provided with the adsorption hole. The pressing assembly is arranged on the mounting piece.

[0010] In a possible implementation,

[0011] The pressing piece comprises a first end part, a second end part and a pressing part. The first end part is arranged in a spaced manner with the second end part. The pressing part is connected to the second end part. The first end part is rotatably connected to the output end of the pressing cylinder. The second end part is rotatably connected to the positioning piece. The pressing cylinder is used to drive the first end part to approach the positioning piece, so as to drive the second end part to approach the positioning part and the pressing part to press the positioning part. The pressing cylinder is also used to drive the first end part to move away from the positioning piece, so as to drive the second end part to move away from the positioning part and the pressing part to release the positioning part.

[0012] In a possible implementation,

[0013] The pressing assembly further comprises a connecting piece. One end of the connecting piece is fixedly connected to the output end of the pressing cylinder. The other end of the connecting piece is provided with a first pivot. The first end part is provided with a strip-shaped hole extending along the length direction of the pressing piece. The first pivot is slidably arranged in the strip-shaped hole.

[0014] In a possible implementation,

[0015] The side surface of the positioning member is provided with a first avoiding gap, the bearing assembly further comprises a second pivot, the second pivot is connected to the positioning member and located in the first avoiding gap, the second end portion is rotatably connected to the second pivot, and the pressing portion can be retracted into the first avoiding gap or extended from the first avoiding gap under the movement of the pressing member.

[0016] In a second aspect, the application provides a machining system comprising the positioning jig.

[0017] In a possible implementation manner, the machining system further comprises a rotating driving member, and the bearing assembly of the positioning jig is detachably connected to an output end of the rotating driving member and can rotate around a rotating axis under the driving of the rotating driving member.

[0018] The machining system further comprises a rotating driving member, and the bearing assembly of the positioning jig is detachably connected to an output end of the rotating driving member and can rotate around a rotating axis under the driving of the rotating driving member.

[0019] In a possible implementation manner, the machining system further comprises a rotating driving member, and the bearing assembly of the positioning jig is detachably connected to an output end of the rotating driving member and can rotate around a rotating axis under the driving of the rotating driving member.

[0020] The machining system further comprises a machine frame and a pressing device. The positioning jig is arranged on the machine frame. The pressing device is movably connected to the machine frame, and the pressing device is used for pressing the target member to the bearing assembly.

[0021] In a possible implementation manner, the machining system further comprises a rotating driving member, and the bearing assembly of the positioning jig is detachably connected to an output end of the rotating driving member and can rotate around a rotating axis under the driving of the rotating driving member.

[0022] The machining system further comprises a machine frame, a mounting frame and a first displacement device. The positioning jig is arranged on the machine frame. The mounting frame is used for connecting a tool. The first displacement device is drivingly connected to the positioning jig to drive the positioning jig to approach or move away from the tool. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the application, the drawings in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some of the embodiments of the application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0024] Figure 1 The structure diagram of the positioning jig and the target member of an embodiment of the application.

[0025] Figure 2 The structure diagram of the positioning jig of an embodiment of the application.

[0026] Figure 3 The structure diagram of the target member of an embodiment of the application.

[0027] Figure 4 The exploded structure diagram of the positioning jig of an embodiment of the application.

[0028] Figure 5 Structure diagram of a pressing assembly according to an embodiment of the present application.

[0029] Figure 6 Structure diagram of a pressing assembly according to an embodiment of the present application.

[0030] Figure 7 Structure diagram of a positioning jig, a rotating driving member and a target member according to an embodiment of the present application.

[0031] Figure 8 Structure diagram of a positioning jig, a rotating driving member and a target member according to an embodiment of the present application.

[0032] Figure 9 Structure diagram of a positioning jig and a rotating driving member according to another embodiment of the present application.

[0033] Figure 10 Structure diagram of a machining system according to an embodiment of the present application.

[0034] Figure 11 Front view of a machining system according to an embodiment of the present application.

[0035] Figure 12 Structure diagram of a switching device, a pressing device and a polishing device according to an embodiment of the present application.

[0036] Explanation of main component symbols:

[0037] Machining system 100

[0038] Positioning jig 10

[0039] Bearing assembly 11

[0040] Mounting member 111

[0041] Positioning member 112

[0042] Base 1121

[0043] Connecting cover 1122

[0044] Suction portion 1123

[0045] Fixing block 1124

[0046] Positioning column 1125

[0047] Pressing assembly 12

[0048] Pressing cylinder 121

[0049] Pressing member 122

[0050] first end portion 1221

[0051] second end portion 1222

[0052] pressing portion 1223

[0053] connecting piece 123

[0054] vacuum generating piece 13

[0055] first pivot 141

[0056] second pivot 142

[0057] air guide piece 15

[0058] air inlet 151

[0059] first air outlet 152

[0060] second air outlet 153

[0061] solenoid valve 16

[0062] first protective cover 17

[0063] three-way pipe 18

[0064] frame 21

[0065] rotary driving piece 22

[0066] adapting piece 23

[0067] first displacement device 24

[0068] punching portion 25

[0069] second displacement device 26

[0070] bearing plate 27

[0071] mounting rack 28

[0072] high-pressure water spraying device 29

[0073] pressing device 30

[0074] first knife handle 31

[0075] pressing plate 32

[0076] switching device 40

[0077] switching head 41

[0078] connecting portion 42

[0079] knife tool 50

[0080] turning tool rod 51

[0081] turning tool particle 52

[0082] polishing device 60

[0083] second handle 61

[0084] polishing part 62

[0085] brush 621

[0086] second protective cover 91

[0087] first direction Z

[0088] second direction Y

[0089] target piece 200

[0090] positioning part 201

[0091] cavity Q1

[0092] first chamber Q2

[0093] second chamber Q3

[0094] third chamber Q4

[0095] opening K1

[0096] suction hole K2

[0097] strip-shaped hole K3

[0098] through hole K4

[0099] avoidance hole K5

[0100] through hole K6

[0101] mounting hole K7

[0102] positioning hole K8

[0103] first displacement hole K98

[0104] second displacement hole K99

[0105] first avoidance notch C1

[0106] second avoidance notch C2

[0107] flow guide groove C3

[0108] mounting groove C4

[0109] first interface K91

[0110] second interface K92

[0111] Third interface K93

[0112] Fourth interface K94

[0113] First air outlet gas path L1

[0114] Second air outlet gas path L2

[0115] Gas supply gas path L3

[0116] First sub-gas path L31

[0117] Second sub-gas path L32

[0118] First communication gas path L4

[0119] Second communication gas path L5

[0120] Adsorption surface P

[0121] The following detailed description will further describe the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0122] The technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments.

[0123] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. When an element is referred to as being "disposed on" another element, it can be directly on the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only.

[0124] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0125] Some embodiments of the present application are described in detail. The following embodiments and features of the embodiments can be combined with each other in the case of no conflict.

[0126] Reference is made to Figures 1 to 3The embodiment provides a positioning jig 10 used for positioning a target piece 200. The target piece 200 is provided with an opening K1, and an inner wall of the target piece 200 is provided with a positioning part 201. The positioning part 201 can be a protruding rib protruding from the inner wall of the target piece 200, or a groove formed in the inner wall of the target piece 200.

[0127] Referring to Figure 2 , the positioning jig 10 comprises a bearing assembly 11, a pressing assembly 12 and a vacuum generating part 13. The bearing assembly 11 is used for bearing the target piece 200, and is provided with a suction hole K2 used for adsorbing and fixing the target piece 200. The pressing assembly 12 comprises a pressing cylinder 121 and a pressing part 122. The pressing cylinder 121 is arranged on the bearing assembly 11, and the pressing part 122 is connected to the pressing cylinder 121. The pressing part 122 is used for moving relative to the bearing assembly 11 under the driving of the pressing cylinder 121, so as to press or release the positioning part 201. The vacuum generating part 13 is connected to a suction cavity through a first air outlet gas path L1, and is connected to the pressing cylinder 121 through a second air outlet gas path L2. In this way, the adsorption surface P can adsorb the target piece 200 at the same time as the pressing part 122 presses the positioning part 201, and the adsorption surface P can stop adsorbing the target piece 200 at the same time as the pressing part 122 releases the positioning part 201.

[0128] According to the positioning jig 10, after the target piece 200 is installed on the bearing assembly 11, the target piece 200 is adsorbed by the adsorption surface P, and the target piece 200 is pressed and positioned by the pressing assembly 12 pressing the positioning part 201. In this way, the position fixing reliability of the target piece 200 can be improved, the probability of problems such as tool vibration marks, size deviation and profile deviation of the target piece 200 due to displacement during processing can be reduced, the probability of deformation of the target piece 200 during processing can be reduced, and the yield of processing of the target piece 200 can be improved. At the same time, by controlling the vacuum generating part 13 to generate positive pressure or negative pressure, the adsorption surface P can be controlled to adsorb the target piece 200 and the pressing assembly 12 can be controlled to press the positioning part 201 at the same time, or the adsorption surface P can be controlled to stop adsorbing the target piece 200 and the pressing assembly 12 can be controlled to release the positioning part 201. In this way, the control logic of the vacuum generating part 13 can be simplified, the disassembly and assembly efficiency of the positioning jig 10 can be improved, and the processing efficiency of the target piece 200 can be further improved. Therefore, the positioning jig 10 can improve the processing yield and processing efficiency of the target piece 200.

[0129] In some embodiments, referring to Figure 1 and Figure 3 , the number of positioning parts 201 is multiple, and the multiple positioning parts 201 are spaced apart and protrude from the inner wall of the target piece 200. The number of pressing assemblies 12 is multiple, and the multiple pressing assemblies 12 are arranged on the bearing assembly 11 in a circumferential direction. Referring to Figure 3The positioning jig 10 further comprises a gas guide 15 having an air inlet 151, a first air outlet 152, and a plurality of second air outlets 153. The number of the positioning portions 201 and the number of the second air outlets 153 are the same as the number of the pressing assemblies 12. The vacuum generator 13 is connected to the air inlet 151 through a gas supply path L3. A first air outlet path L1 is connected to the first air outlet 152 and the suction cavity. A plurality of second air outlet paths L2 are respectively connected to the corresponding second air outlets 153 and the pressing cylinders 121.

[0130] In this way, the vacuum generator 13 can realize synchronous suction or air supply to the suction cavity and the plurality of pressing cylinders 121 through the gas guide 15, so as to realize the formation or breaking of the vacuum environment of the suction cavity and the synchronous movement of the plurality of pressing cylinders 121. In addition, the plurality of pressing assemblies 12 synchronously press the plurality of positioning portions 201, so as to realize uniform force on the target piece 200, thereby improving the positioning accuracy of the positioning jig 10 on the target piece 200 and reducing the possibility of displacement of the target piece 200 caused by uneven force.

[0131] In some embodiments, referring to Figure 2 The vacuum generator 13 comprises a first interface K91 and a second interface K92. The second interface K92 is connected to the gas supply path L3. The gas supply path L3 is connected to the first air outlet path L1 and the second air outlet path L2. The positioning jig 10 further comprises a solenoid valve 16 having a third interface K93 and a fourth interface K94. The third interface K93 is connected to the first interface K91, and the fourth interface K94 is connected to the gas supply path L3. When the first interface K91 is connected to the third interface K93, the second interface K92 is disconnected from the gas supply path L3, and the vacuum generator 13 generates negative pressure. When the second interface K92 is connected to the gas supply path L3, the first interface K91 is disconnected from the third interface K93, and the vacuum generator 13 generates positive pressure.

[0132] In some embodiments, referring to Figure 2 The positioning jig 10 further comprises a three-way pipe 18. The gas supply path L3 comprises a first sub-gas path L31 and a second sub-gas path L32. One end of the first sub-gas path L31 is connected to the second interface K92, and the other end of the second sub-gas path L32 is connected to a first interface of the three-way pipe 18. The second sub-gas path L32 is connected to a second interface of the three-way pipe 18 and the air inlet 151 of the gas guide 15. A second connection gas path L5 is connected to a third interface of the three-way pipe 18.

[0133] In some embodiments, referring to Figure 3The target piece 200 is provided with a cavity Q1, one side of the target piece 200 is provided with an opening K1 in communication with the cavity Q1, and the inner wall of the cavity Q1 is provided with a positioning portion 201. The positioning portion 201 is arranged close to the opening K1. The target piece 200 has a box shape. The shape of the target piece 200 can be a cuboid, a triangular prism, a hexagonal prism, etc. For ease of understanding, the shape of the target piece 200 is taken as a cuboid in the embodiments of the present application, and it is obvious that this is not a limitation of the embodiments of the present application.

[0134] Further referring to Figure 1 The bearing assembly 11 comprises a mounting piece 111 and a positioning piece 112. The positioning piece 112 is protruded from the mounting piece 111, and is used to extend into the cavity Q1 to position the target piece 200. The surface of the positioning piece 112 away from the mounting piece 111 is provided with a suction hole K2, and the pressing assembly 12 is arranged on the mounting piece 111. In this way, the overall structural compactness of the positioning jig 10 is improved.

[0135] In some embodiments, referring to Figure 4 The mounting piece 111 is provided with a through hole K6. The air guide piece 15 is arranged on one side of the mounting piece 111 close to the positioning piece 112, the gas conveying pipeline passes through the through hole K6, and the electromagnetic valve 16 and the vacuum generating piece 13 are arranged on the side of the mounting piece 111 away from the positioning piece 112.

[0136] In some embodiments, referring to Figure 4 The surface of the positioning piece 112 away from the mounting piece 111 is a suction surface P, which is used to suck the bottom wall of the target piece 200. The suction surface P is in communication with the suction hole K2. The suction surface P is also provided with a plurality of flow guide grooves C3 recessed towards the mounting piece 111. The plurality of flow guide grooves C3 are in communication with each other and with the suction hole K2. By arranging the plurality of flow guide grooves C3, the area of the suction surface P for drawing negative pressure is increased, thereby improving the firmness and stability of the positioning jig 10 in positioning the target piece 200.

[0137] In some embodiments, referring to Figure 4 The middle part of the side of the suction member away from the protective cover is provided with a clearance hole K5. Since the bottom of the box-shaped product needs to be machined to form the through hole K4, the clearance hole K5 is arranged to facilitate the machining tool 50 to avoid the machining tool 50 when machining the through hole K4 of the product.

[0138] In some embodiments, referring to Figure 5 and Figure 6The pressing member 122 comprises a first end portion 1221, a second end portion 1222 and a pressing portion 1223. The first end portion 1221 is spaced apart from the second end portion 1222, and the pressing portion 1223 is connected to the second end portion 1222. The first end portion 1221 is rotatably connected to the output end of the pressing cylinder 121, and the second end portion 1222 is rotatably connected to the positioning member 112. The pressing cylinder 121 is configured to drive the first end portion 1221 to move towards the positioning member 112, so as to drive the second end portion 1222 to move towards the positioning portion 201, and the pressing portion 1223 is configured to press against the positioning portion 201. The pressing cylinder 121 is also configured to drive the first end portion 1221 to move away from the positioning member 112, so as to drive the second end portion 1222 to move away from the positioning portion 201, and the pressing portion 1223 is configured to release the positioning portion 201. In this way, during the process that the pressing cylinder 121 drives the first end portion 1221 to move towards the positioning member 112, the second end portion 1222 moves in a direction away from the positioning member 112, so as to drive the pressing portion 1223 to move towards the positioning portion 201 of the target member 200, until the pressing portion 1223 presses against the positioning portion 201, thereby achieving the positioning effect on the target member 200. During the process that the pressing cylinder 121 drives the first end portion 1221 to move away from the positioning member 112, the second end portion 1222 moves in a direction towards the positioning member 112, so as to drive the pressing portion 1223 to move away from the positioning portion 201, until the positioning portion 201 is released.

[0139] In some embodiments, referring to Figure 5 and Figure 6 The pressing assembly 12 further comprises a connecting member 123. One end of the connecting member 123 is fixedly connected to the output end of the pressing cylinder 121, and the other end of the connecting member 123 is provided with a first pivot 141. The first end portion 1221 is provided with a strip-shaped hole K3 extending along the length direction of the pressing member 122, and the first pivot 141 is slidably arranged in the strip-shaped hole K3. The strip-shaped hole K3 can facilitate the movement of the pressing member 122 along the length direction thereof. After the pressing portion 1223 presses against the positioning portion 201, the pressing member 122 can be moved along the length direction thereof, so as to exert a pressing force on the positioning portion 201 by the pressing portion 1223, thereby improving the positioning effect on the target member 200. In other embodiments, the first pivot 141 can be arranged on the first end portion 1221, and the strip-shaped hole K3 can be arranged on the connecting member 123.

[0140] In some embodiments, referring to Figures 4 to 6The side surface of the positioning member 112 is provided with a first avoiding gap C1. The bearing assembly 11 further comprises a second pivot shaft 142 connected to the positioning member 112 and located in the first avoiding gap C1, and the second end portion 1222 is rotatably connected to the second pivot shaft 142, and the abutting portion 1223 can be retracted into the first avoiding gap C1 or extended out of the first avoiding gap C1 under the movement of the pressing member 122. In this way, when the abutting portion 1223 is retracted into the first avoiding gap C1, the target member 200 can be smoothly installed on the positioning member 112, ensuring the positioning effect of the side surface of the positioning member 112 on the inner side wall of the target member 200, and avoiding interference of the abutting portion 1223 with the installation of the target member 200. After the target member 200 is installed, the pressing member 122 is driven to move by the pressing cylinder 121 until the abutting portion 1223 abuts against the positioning portion 201, so as to realize the pressing positioning effect of the target member 200.

[0141] In some embodiments, referring to Figure 4 The side surface of the positioning member 112 is provided with a second avoiding gap C2. The second avoiding gap C2 is located on the side of the first avoiding gap C1 close to the mounting member 111. The connecting member 123 is slidably fitted in the second avoiding gap C2. The second avoiding gap C2 can guide the movement of the connecting member 123, so as to improve the accuracy of the movement of the connecting member 123 driven by the pressing cylinder 121, and further improve the accuracy of the movement track of the pressing member 122, so as to ensure that the pressing member 122 can reliably abut against the positioning portion 201.

[0142] In some embodiments, referring to Figure 4 The positioning member 112 comprises a base 1121, a connecting cover 1122 and an adsorbing portion 1123. The base 1121 is connected to the mounting member 111. The connecting cover 1122 is arranged on the side of the base 1121 away from the mounting member 111. The adsorbing portion 1123 is arranged on the side of the connecting cover 1122 away from the base 1121. The connecting cover 1122 and the base 1121 surround a first cavity Q2. The first avoiding gap C1 is arranged on the connecting cover 1122 and communicates with the first cavity Q2. The base 1121 and the mounting member 111 surround a second cavity Q3. The second cavity Q3 communicates with the first cavity Q2. The second avoiding gap C2 is arranged on the base 1121 and communicates with the second cavity Q3. The base 1121 is further provided with a mounting hole K7 which is arranged in a spaced manner with the second avoiding gap C2. The mounting hole K7 communicates with the second cavity Q3 and the outer circumferential surface of the base 1121. The gas guide member 15 is accommodated in the second cavity Q3 and / or the first cavity Q2. The first gas outlet gas path L1 communicates with the adsorbing hole K2 of the adsorbing portion 1123. The pressing cylinder 121 is located on the outer side of the base 1121, and the second gas outlet gas path L2 passes through the mounting hole K7 and communicates with the corresponding pressing cylinder 121.

[0143] In this way, the internal space utilization of the positioning member 112 can be improved, and the connecting cover 1122 can also shield and protect the connecting cover 1122 from the debris generated during processing, so as to affect the normal work of the air guide member 15 and the pressing member 122.

[0144] In some embodiments, the base 1121 is further provided with a plurality of positioning columns 1125. The connecting cover 1122 is provided with a plurality of positioning holes K8. Each positioning column 1125 is matched in the corresponding positioning hole K8, so as to improve the positioning and mounting reliability between the connecting cover 1122 and the base 1121.

[0145] In some embodiments, referring to Figure 4 , the number of the first avoiding notches C1 is multiple, the number of the second avoiding notches C2 is multiple, and the number of the pressing assemblies 12 is multiple. The number of the first avoiding notches C1, the number of the second avoiding notches C2, and the number of the pressing assemblies 12 are the same. The plurality of first avoiding notches C1 are arranged at intervals in the circumferential direction of the mounting member 111, the plurality of second avoiding notches C2 are arranged at intervals in the circumferential direction of the mounting member 111, and the plurality of pressing assemblies 12 are arranged at intervals in the circumferential direction of the mounting member 111. Each first avoiding notch C1 is arranged in the first direction Z corresponding to a corresponding second avoiding notch C2 and a corresponding pressing assembly 12. The number of the mounting holes K7 is multiple, and one corresponding mounting hole K7 is arranged between each two adjacent second avoiding notches C2.

[0146] In some embodiments, the first avoiding notch C1 comprises a first notch segment and a second notch segment. The first notch segment and the second notch segment are connected in communication in the first direction Z. The positioning member 112 further comprises a fixing block 1124. The fixing block 1124 is arranged in the first notch segment, and the fixing block 1124 is connected with the connecting cover 1122. The fixing block 1124 is provided with a mounting groove C4, and the second pivot 142 is arranged opposite to two groove side surfaces of the mounting groove C4. The second end portion 1222 is matched in the mounting groove C4 and is rotatably connected with the second pivot 142. The second notch segment can provide a movement space for the pressing portion 1223, so that the pressing member 122 does not interfere with the connecting cover 1122 during movement.

[0147] In some embodiments, referring to Figure 7 and Figure 8The positioning jig 10 further comprises a first protective cover 17. The first protective cover 17 is provided with a first accommodating hole K98, and the mounting member 111 passes through the first accommodating hole K98. A third cavity Q4 is defined between the first protective cover 17 and the mounting member 111. The pressing cylinder 121 and the second gas outlet gas path L2 are accommodated in the third cavity Q4. In this way, the pressing cylinder 121 and the second gas outlet gas path L2 can be better protected to avoid debris generated during machining from falling into the mounting member 111 and affecting the normal operation of the pressing cylinder 121. Specifically, one side of the first protective cover 17 is connected to the base 1121. The other side of the first protective cover 17 is connected to the mounting member 111.

[0148] In some embodiments, a second accommodating hole K99 is formed on the side surface of the first protective cover 17. The pressing cylinder 121 is accommodated in the second accommodating hole K99.

[0149] Referring to Figures 9 to 11 , the application further provides a machining system 100 comprising the positioning jig 10 and the rotary driving member 22 described above. The bearing assembly 11 of the positioning jig 10 is detachably connected to the output end of the rotary driving member 22 and can rotate around the rotary axis under the driving of the rotary driving member 22. In this way, the target piece 200 on the positioning jig 10 can be driven to rotate by the rotary driving member 22 to generate relative movement with the cutter 50, thereby realizing the milling action of the cutter 50 on the target piece 200.

[0150] In some embodiments, referring to Figure 10 , the number of rotary driving members 22 is multiple. The machining system 100 further comprises an adapter 23. The adapter 23 is adapted to the output end of a part of the rotary driving members 22. The adapter 23 is detachably connected to the positioning jig 10. In this way, the positioning jig 10 can be installed on different adapter plates according to different machining requirements, thereby improving the versatility of the machining system 100.

[0151] In some embodiments, the rotary driving member 22 is internally provided with an accommodating cavity. The vacuum generator 13 and the electromagnetic valve 16 can be accommodated in the accommodating cavity, thereby improving the compactness of the structure of the positioning jig 10.

[0152] In some embodiments, referring to Figure 10 and Figure 11 , the cutter 50 comprises a turning tool rod 51 and two turning tool particles 52. One end of the turning tool rod 51 is connected to the mounting bracket 28. The other end of the turning tool rod 51 is connected to the two turning tool particles 52. One of the two turning tool particles 52 performs a rough milling process on the target piece 200, and the other turning tool particle 52 performs a fine milling process on the target piece 200. In this way, the turning tool 50 can realize roughing and finishing operations on the target piece 200, thereby saving machining time and reducing production cost.

[0153] In some embodiments, referring to Figure 12 , the machining system 100 further comprises a first displacement device 24 and a punching portion 25. The first displacement device 24 is connected to the frame 21. The first displacement device 24 is drivingly connected to the punching portion 25 to form the through hole K4 on the bottom wall of the target piece 200. The first displacement device is used to drive the switching device 40 to move towards or away from the positioning jig 10 along the first direction Z.

[0154] In some embodiments, referring to Figure 12 , the mounting bracket 28 is fixedly arranged on the frame 21. In this way, during the milling of the target piece 200, the mounting bracket 28 is independent of the first displacement device 24, and the operation of the cutter 50 will not be affected by the vibration of the first displacement device 24, thereby improving the mounting stability of the cutter 50 and reducing the vibration marks on the target piece 200, and improving the milling quality of the target piece 200.

[0155] In some embodiments, referring to Figure 11 , the machining system 100 further comprises a mounting bracket 28 and a second displacement device 26. The mounting bracket 28 is used to connect the cutter 50. The second displacement device 26 is drivingly connected to the positioning jig 10 to drive the positioning jig 10 to move towards or away from the cutter 50. The second displacement device 26 is used to drive the positioning jig 10 to move along the second direction Y.

[0156] In some embodiments, referring to Figure 11 and Figure 12 , the machining system 100 further comprises a bearing plate 27 and a high-pressure water jet device 29. The bearing plate 27 is drivingly connected to the second displacement device 26. The positioning jig 10 and the high-pressure water jet device 29 are arranged on the bearing plate 27. The high-pressure water jet device 29 is used to spray water towards the target piece 200 on the positioning jig 10, so as to timely flush away the chipping formed on the surface of the target piece 200 during milling, to prevent the possibility of the chipping winding on the cutter 50 and scratching the product during milling, and to reduce the possibility of scratching the target piece 200, thereby improving the processing yield of the target piece 200 and prolonging the service life of the cutter 50.

[0157] In some embodiments, referring to Figures 10 to 12 , the machining system 100 further comprises a frame 21 and a pressing device 30. The positioning jig 10 is arranged on the frame 21. The pressing device 30 is movably connected to the frame 21, and the pressing device 30 is used to press the target piece 200 to the bearing assembly 11.

[0158] In some embodiments, referring to Figures 10 to 12The machining system 100 further comprises a switching device 40. The switching device 40 comprises a switching head 41 and a plurality of connecting portions 42. The switching head 41 is connected to the frame 21. One end of each of the plurality of connecting portions 42 is connected to the switching head 41, and the other end of each of the plurality of connecting portions 42 is configured to be connected to a functional component. One of the plurality of connecting portions 42 is configured to be connected to the pressing device 30. In some embodiments, the switching device 40 further comprises a second protective cover 91. The second protective cover 91 covers the plurality of connecting portions 42 to protect the plurality of connecting portions 42.

[0159] In some embodiments, referring to Figure 12 The plurality of connecting portions 42 are distributed in a radial manner.

[0160] In some embodiments, referring to Figure 12 The pressing device 30 comprises a first knife handle 31 and a pressing plate 32. One end of the first knife handle 31 is connected to the connecting portion 42, and the other end of the first knife handle 31 is connected to the pressing plate 32. The pressing plate 32 is configured to press against a side of the target piece 200 that is away from the positioning member 112 to achieve a pressing effect, thereby preventing a vacuum leakage phenomenon, improving the reliability of the positioning jig 10 in adsorbing the target piece 200, saving manpower, and improving the machining quality and efficiency of the target piece 200. The pressing plate 32 can be made of a reliable glue that does not damage the target piece 200.

[0161] In some embodiments, referring to Figure 11 and Figure 12 The machining system 100 further comprises a polishing device 60. The polishing device 60 is connected to one of the plurality of connecting portions 42. The polishing device 60 comprises a second knife handle 61 and a polishing portion 62. One end of the second knife handle 61 is connected to the connecting portion 42, and the other end of the second knife handle 61, which is away from the connecting portion 42, is connected to the polishing portion 62. The polishing portion 62 can polish the target piece 200 after the cutter 50 lathes and mills the target piece 200, thereby improving the machining efficiency of the target piece 200, reducing the transfer steps of the target piece 200, shortening the production cycle of the target piece 200, and thus reducing the production cost. A brush 621 is arranged on a side of the polishing portion 62 that is away from the second knife handle 61.

[0162] The above embodiments are only used to illustrate the technical solutions of the present application and not to limit the present application. Although the present application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application.

Claims

1. A positioning fixture for positioning a target part, the target part having an opening and a positioning portion on its inner wall, characterized in that, The positioning jig comprises: a bearing assembly for bearing the target piece, the bearing assembly being provided with an adsorption hole for adsorbing and fixing the target piece; a pressing assembly comprising a pressing cylinder and a pressing piece, the pressing cylinder being arranged on the bearing assembly, and the pressing piece being connected to the pressing cylinder and being configured to move relative to the bearing assembly under the drive of the pressing cylinder to press against or release the positioning part; a vacuum generating piece, the vacuum generating piece being connected to the adsorption hole through a first gas outlet gas path, and being connected to the pressing cylinder through a second gas outlet gas path, so that the adsorption hole adsorbs the target piece at the same time as the pressing piece presses against the positioning part, and the adsorption hole stops adsorbing the target piece at the same time as the pressing piece releases the positioning part.

2. The positioning jig according to claim 1, wherein: the positioning part is in a plurality, and the plurality of positioning parts are arranged on the inner wall of the target piece in a spaced manner; the number of the pressing assembly is a plurality, and the plurality of pressing assemblies are arranged on the bearing assembly in a spaced manner in the circumferential direction; the positioning jig further comprises a gas guide piece, the gas guide piece having a gas inlet, a first gas outlet, and a plurality of second gas outlets, the number of the positioning parts, the number of the second gas outlets, and the number of the pressing assemblies being the same, the vacuum generating piece being connected to the gas inlet through a gas conveying path, the first gas outlet gas path being connected to the first gas outlet and the adsorption hole, and the plurality of second gas outlet gas paths being respectively connected to the corresponding second gas outlets and the pressing cylinders.

3. The positioning jig according to claim 1, wherein: the target piece is provided with a cavity, one side of the target piece is provided with an opening communicating with the cavity, and the inner wall of the cavity is provided with the positioning part; the bearing assembly comprises a mounting piece and a positioning piece, the positioning piece being arranged on the mounting piece, the positioning piece being configured to extend into the cavity to position the target piece, a surface of the positioning piece away from the mounting piece being provided with the adsorption hole, and the pressing assembly being arranged on the mounting piece.

4. The positioning jig according to claim 3, wherein: the pressing piece comprises a first end portion, a second end portion, and a pressing portion, the first end portion and the second end portion being arranged in a spaced manner, and the pressing portion being connected to the second end portion; the first end portion is rotatably connected to the output end of the pressing cylinder, the second end portion is rotatably connected to the positioning piece, the pressing cylinder is configured to drive the first end portion to approach the positioning piece to drive the second end portion to approach the positioning part, and the pressing portion presses against the positioning part; the pressing cylinder is further configured to drive the first end portion to move away from the positioning piece to drive the second end portion to move away from the positioning part, and the pressing portion releases the positioning part.

5. The positioning jig according to claim 4, wherein: The pressing assembly further comprises a connecting piece, one end of the connecting piece is fixedly connected with the output end of the pressing cylinder, the other end of the connecting piece is provided with a first pivot, the first end portion is provided with a strip-shaped hole, the strip-shaped hole extends along the length direction of the pressing piece, and the first pivot is slidably arranged in the strip-shaped hole.

6. The positioning jig according to claim 4, wherein: The side surface of the positioning piece is provided with a first avoiding gap, the bearing assembly further comprises a second pivot, the second pivot is connected with the positioning piece and located in the first avoiding gap, the second end portion is rotatably connected with the second pivot, and the pressing part can be retracted into the first avoiding gap or extended from the first avoiding gap under the movement of the pressing piece.

7. A processing system characterized by, The positioning jig comprises any one of the positioning jigs according to claims 1 to 6.

8. The processing system according to claim 7, wherein: The processing system further comprises a rotating driving piece, the bearing assembly of the positioning jig is detachably connected with the output end of the rotating driving piece and can rotate around the rotating axis under the driving of the rotating driving piece.

9. The processing system of claim 7, wherein, The processing system further comprises: A rack, and the positioning jig is arranged on the rack; A pressing device, and the pressing device is movably connected with the rack and used for pressing the target piece on the bearing assembly.

10. The processing system of claim 7, wherein, The processing system further comprises: A rack, and the positioning jig is arranged on the rack; A mounting rack, and the mounting rack is used for connecting a tool; A first displacement device, and the first displacement device is drivingly connected with the positioning jig to drive the positioning jig to approach or move away from the tool. The processing system further comprises: A rack, and the positioning jig is arranged on the rack; A mounting rack, and the mounting rack is used for connecting a tool; A first displacement device, and the first displacement device is drivingly connected with the positioning jig to drive the positioning jig to approach or move away from the tool.

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