Positioning clamp

Abstract

The utility model discloses a positioning fixture, which relates to the technical field of fixtures, is used for positioning a blank, and comprises a bearing mechanism and a positioning mechanism, the bearing mechanism comprises a bearing assembly and a plurality of supporting assemblies, the bearing assembly is used for being connected with machining equipment, and the multiple supporting assemblies are arranged on the bearing assembly at intervals; the positioning mechanism comprises a positioning assembly, a first clamping assembly and a second clamping assembly, the positioning assembly is detachably arranged on the bearing assembly, the first clamping assembly and the second clamping assembly are movably arranged on the positioning assembly, the first clamping assembly and the second clamping assembly are used for clamping and positioning blanks, and the multiple supporting assemblies are used for supporting the blanks. According to the positioning clamp, the utilization rate of machining equipment is increased, and the operation difficulty of operators is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of fixtures, and particularly relates to a positioning fixture. Background Art

[0002] Currently, when processing and forming workpieces using processing equipment such as machine tools, the blank is first bonded to a preset position of the processing equipment using glue. After the front side of the blank is processed, the reverse side of the blank is processed. When processing the reverse side of the blank, the blank needs to be flipped and re-bonded and positioned. Since the efficiency of bonding and fixing the blank using glue is low and the glue residue needs to be cleaned when flipping the blank, the standby time of the processing equipment is long, and thus the utilization rate of the processing equipment is low. In addition, due to the position deviation of the blank after repositioning, the processing program of the processing equipment needs to be re-debugged at this time, resulting in high operation difficulty for the staff. Summary of the Utility Model

[0003] In view of the above, it is necessary to provide a positioning fixture to improve the utilization rate of processing equipment and reduce the operation difficulty of operators.

[0004] The embodiment of the present application provides a positioning fixture for positioning a blank, including a bearing mechanism and a positioning mechanism; the bearing mechanism includes a bearing component and a plurality of supporting components, the bearing component is used for connecting with the processing equipment, and the plurality of supporting components are arranged at intervals on the bearing component; the positioning mechanism includes a positioning component, a first clamping component and a second clamping component, the positioning component is detachably arranged on the bearing component, the first clamping component and the second clamping component are movably arranged on the positioning component, the first clamping component and the second clamping component are used for clamping and positioning the blank, and the plurality of supporting components are used for supporting the blank.

[0005] In the positioning fixture of the embodiment of the present application, it is not necessary to disassemble the bearing mechanism during the processing of the front and back sides of the blank. It is only necessary to disassemble and assemble the positioning mechanism and the bearing mechanism. Since the efficiency of disassembling and assembling the positioning mechanism and the bearing mechanism is high, the standby time of the processing equipment is short, and thus the utilization rate of the processing equipment is improved. In addition, during the processing of the front and back sides of the blank, it is only necessary to move the first clamping component and the second clamping component to position the blank once. When the positioning mechanism and the blank are flipped, there will be no position deviation of the blank, and it is not necessary to re-debug the processing program of the processing equipment, thereby reducing the operation difficulty of the staff.

[0006] In some embodiments, each of the support components includes a rotating frame, a support member, and a locking member; the rotating frame is rotatably disposed on the bearing component; the support member is rotatably disposed on the rotating frame, and the rotation axis of the support member is parallel to the rotation axis of the rotating frame. The support member is configured to support the blank when the rotating frame rotates a preset angle; the locking member is disposed on the rotating frame, and the locking member is configured to lock the rotating frame to the bearing component when the rotating frame rotates a preset angle to limit the rotation of the rotating frame.

[0007] In some embodiments, one of the bearing component and the positioning component protrudes with a positioning protrusion, and the other of the bearing component and the positioning component is provided with a positioning hole. The positioning protrusion is inserted into the positioning hole to position the positioning component relative to the bearing component.

[0008] In some embodiments, the bearing component includes a main frame, a clamping member, and a connecting member; a plurality of the support components are spaced apart and disposed on the main frame; the clamping member is configured to be clamped with the processing equipment; the connecting member passes through the main frame and is connected to the clamping member.

[0009] In some embodiments, the positioning component includes a sub-frame and a fitting component; the sub-frame includes a frame body and multiple pairs of abutting portions. The frame body is provided with an avoidance opening for allowing a plurality of the support components to extend therein. The first clamping component and the second clamping component are both movably disposed on the frame body along a first direction and are disposed opposite to the avoidance opening. The multiple pairs of abutting portions are spaced apart around the avoidance opening. Each pair of the abutting portions is respectively disposed on opposite sides of the frame body and symmetrically arranged. The abutting portion is configured to abut against the bearing component; the fitting component passes through any one of the abutting portions and is connected to the bearing component.

[0010] In some embodiments, the frame body is further provided with a plurality of first limiting holes and a plurality of second limiting holes which are arranged at intervals along the first direction. The plurality of first limiting holes and the plurality of second limiting holes are respectively located on opposite sides of the avoidance opening and on the moving paths of the first clamping assembly and the second clamping assembly. The plurality of first limiting holes and the plurality of second limiting holes correspond to each other one by one. Both the first clamping assembly and the second clamping assembly include a moving cross beam, a first plug-in member, a second plug-in member and a pressing unit. The moving cross beam is slidably arranged on the frame body along the first direction and extends along a second direction perpendicular to the first direction. Both ends of the moving cross beam are respectively located on the arrangement path of the first limiting holes and on the arrangement path of the second limiting holes. The first plug-in member is used to pass through one end of the moving cross beam and insert into one of the first limiting holes when the moving cross beam moves to a preset position. The second plug-in member is used to pass through the other end of the moving cross beam and insert into one of the second limiting holes when the moving cross beam moves to a preset position. The pressing unit is movably arranged on the moving cross beam along the second direction. The pressing units of the first clamping assembly and the second clamping assembly are used to press and position the blank from both sides.

[0011] In some embodiments, a plurality of plugging holes are arranged at intervals along the second direction on the moving cross beam. The pressing unit includes an adjusting member and a pressing member. The adjusting member is inserted into one of the plugging holes and is in threaded connection with the plugging hole. The pressing member is arranged between the moving cross beams of the first clamping assembly and the second clamping assembly and is connected to the adjusting member, and is used to press and position the blank under the drive of the adjusting member.

[0012] In some embodiments, the positioning mechanism further includes a plurality of limiting members. The plurality of limiting members are respectively movably clamped on the moving cross beams of the first clamping assembly and the second clamping assembly. Each limiting member has a limiting surface. The limiting surface is used to abut against the side wall of the blank in the third direction to limit the position of the blank in the third direction. The first direction, the second direction and the third direction are perpendicular to each other pairwise.

[0013] In some embodiments, the positioning mechanism further includes a tool setting member. The tool setting member is arranged on one side of the auxiliary skeleton. The tool setting member has a first tool setting surface and a second tool setting surface which are parallel to the limiting surface. The first tool setting surface and the second tool setting surface are respectively used for the tool of the processing equipment to set the tool when the processing equipment processes the front and back surfaces of the blank.

[0014] In some embodiments, the positioning mechanism further includes a resisting member. Two ends of the resisting member are respectively and detachably inserted into at least one of the first limiting holes and at least one of the second limiting holes. The resisting member is configured to abut against the front surface of the blank after the front surface of the blank is machined, so as to support the blank when the machining device machines the reverse surface of the blank. Description of the Drawings

[0015] Figure 1 is a schematic perspective view of a positioning fixture provided by an embodiment of the present application.

[0016] Figure 2 is Figure 1 a schematic structural view showing the positioning fixture shown being connected to a suitable machine table, and the positioning mechanism of the positioning fixture positioning a suitable blank and then being connected to the carrying mechanism after flipping.

[0017] Figure 3 is Figure 1 a schematic perspective view of the carrying mechanism in the positioning fixture shown.

[0018] Figure 4 is Figure 1 a schematic exploded view of the carrying mechanism in the positioning fixture shown.

[0019] Figure 5 is Figure 4 a schematic perspective view of a connecting block in the carrying mechanism shown.

[0020] Figure 6 is Figure 4 a schematic perspective view of a support member in the carrying mechanism shown.

[0021] Figure 7 is Figure 1 a schematic perspective view of the positioning mechanism in the positioning fixture shown.

[0022] Figure 8 is Figure 1 a schematic exploded view of the positioning mechanism in the positioning fixture shown.

[0023] Description of the Main Element Symbols

[0024] Positioning Fixture 100

[0025] Carrying Mechanism 10

[0026] Carrying Assembly 11

[0027] Main Skeleton 111

[0028] Connection Hole 1111

[0029] Opening 1112

[0030] Assembly hole 1113

[0031] First perforation 1114

[0032] Snap-in part 112

[0033] Connecting part 113

[0034] Positioning pin 114

[0035] Positioning projection 1141

[0036] Fixing screw 115

[0037] Support assembly 12

[0038] Rotating frame 121

[0039] Rotating rod 1211

[0040] Limit groove 1211a

[0041] Connecting block 1212

[0042] Card slot 1212a

[0043] Rotating hole 1212b

[0044] Sector groove 1212c

[0045] First fastener 1213

[0046] Support part 122

[0047] Support portion 1221

[0048] Rotating portion 1222

[0049] Sector projection 1222a

[0050] Locking part 123

[0051] Circlip 124

[0052] Positioning mechanism 20

[0053] Positioning assembly 21

[0054] Sub-frame 211

[0055] Frame body 2111

[0056] Avoidance port 2111a

[0057] First limit hole 2111b

[0058] Second limit hole 2111c

[0059] First scale 2111d

[0060] Contact portion 2112

[0061] First contact portion 2112a

[0062] Positioning hole 2112a1

[0063] Second contact portion 2112b

[0064] Second perforation 2112b1

[0065] Assembly part 212

[0066] First clamping assembly 22

[0067] Moving crossbeam 221

[0068] Fixing hole 2211

[0069] Insertion hole 2212

[0070] Second scale 2213

[0071] First insert 222

[0072] Second insert 223

[0073] Extrusion unit 224

[0074] Adjusting part 2241

[0075] Extrusion part 2242

[0076] Second clamping assembly 23

[0077] Limiting part 24

[0078] First limiting portion 241

[0079] Limiting surface 2411

[0080] Extension part 242

[0081] Second limiting portion 243

[0082] Groove 244

[0083] Tool alignment part 25

[0084] First tool alignment surface 251

[0085] Second tool alignment surface 252

[0086] Blocking part 26

[0087] Blocking plate 261

[0088] Locking screw 262

[0089] Second fastener 27

[0090] Machine 300

[0091] T-shaped groove 310

[0092] Blank 400 Specific implementation manner

[0093] The embodiments of the present application will be described in detail below. Examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present application and should not be construed as limiting the present application.

[0094] In the description of the present application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, it should be noted that the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0095] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection, an electrical connection, or a connection that can communicate with each other; it may be directly connected, or indirectly connected through an intermediate medium; it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to specific circumstances. Some embodiments of the present application will be described in detail below with reference to the drawings.

[0096] Please refer to Figure 1 and Figure 2, an embodiment of the present application provides a positioning fixture 100, which is applied to a processing device (not shown in the figure) and is used to position a blank 400 so that the processing device can process the blank 400 into a workpiece (not shown in the figure). Among them, the processing device can be a punching machine, a milling machine, a machining center, etc., and the workpiece can be a sample or a component of products such as automobiles. For the convenience of understanding and description, in the embodiment of the present application, the processing device is a machining center and the workpiece is an automobile sample, and the first direction is defined as Figure 1 , Figure 7 and Figure 8 the X-axis direction shown in the figure, the second direction is Figure 1 , Figure 7 and Figure 8 the Y-axis direction shown in the figure, and the third direction is Figure 1 , Figure 7 and Figure 8 the Z-axis direction shown in the figure. Obviously, this is not a limitation on the embodiment of the present application.

[0097] In this embodiment, the positioning fixture 100 includes a bearing mechanism 10 and a positioning mechanism 20.

[0098] The bearing mechanism 10 includes a bearing component 11 and a plurality of support components 12. The bearing component 11 is connected to the machine table 300 of the processing device, and the plurality of support components 12 are arranged at intervals on the bearing component 11.

[0099] The positioning mechanism 20 includes a positioning component 21, a first clamping component 22 and a second clamping component 23. The positioning component 21 is detachably arranged on the bearing component 11. The first clamping component 22 and the second clamping component 23 are movably arranged on the positioning component 21. The first clamping component 22 and the second clamping component 23 are used to clamp and position the blank 400, and the plurality of support components 12 are used to support the blank 400.

[0100] When the positioning fixture 100 of this embodiment is in use, first install the bearing mechanism 10 at a preset position on the machine table 300 of the processing equipment, connect the positioning component 21 to the bearing component 11 of the bearing mechanism 10, then place the blank 400 between the first clamping component 22 and the second clamping component 23, move the first clamping component 22 and the second clamping component 23 according to the specific position required for the blank 400 during processing, so that the first clamping component 22 and the second clamping component 23 clamp and position the blank 400, and make the supporting component 12 facing the blank 400 support the blank 400. At this time, the front side of the blank 400 faces upward, operate the processing equipment to process the front side of the blank 400. After the front side of the blank 400 is processed, disassemble the positioning mechanism 20 from the bearing component 11 for filling treatment with filler (not shown in the figure). Then, flip the positioning mechanism 20 to reconnect the positioning component 21 to the bearing component 11 of the bearing mechanism 10. At this time, the back side of the blank 400 faces upward, operate the processing equipment to process the back side of the blank 400. After both the front and back sides of the blank 400 are processed, remove the blank 400 from the positioning mechanism 20 and trim it to form a workpiece.

[0101] In the positioning fixture 100 of this embodiment, the bearing mechanism 10 is directly installed at a preset position on the machine table 300 of the processing equipment. During the processing of the front and back sides of the blank 400, it is not necessary to disassemble the bearing mechanism 10, and only the positioning mechanism 20 needs to be disassembled and assembled with the bearing mechanism 10. Since the efficiency of disassembling and assembling the positioning mechanism 20 and the bearing mechanism 10 is high, the standby time of the processing equipment is short, and thus the utilization rate of the processing equipment is improved. In addition, during the processing of the front and back sides of the blank 400, it is only necessary to move the first clamping component 22 and the second clamping component 23 to position the blank 400 once. When the positioning mechanism 20 and the blank 400 are flipped, there will be no position deviation of the blank 400, and it is not necessary to re-adjust the processing program of the processing equipment, thereby reducing the operation difficulty of the staff.

[0102] In this embodiment, since the minimum thickness of the formed workpiece is small, the purpose of filling the depression (not shown in the figure) formed on the front side of the blank 400 with filler is to prevent the blank 400 from deforming during subsequent processing. Among them, the filler can be gypsum, etc. During the curing process of the filler, another positioning mechanism 20 can be installed on the bearing mechanism 10 to position another blank 400, so that the processing equipment can process another blank 400, thereby improving the utilization rate of the processing equipment. In some other embodiments, if the minimum thickness of the formed workpiece is large, it is also possible not to fill the depression formed on the front side of the blank 400 with filler, and the embodiments of the present application do not make specific limitations in this regard.

[0103] Please refer to Figure 3 and Figure 4, in this embodiment, the carrying component 11 includes a main frame 111, a clamping component 112 and a connecting component 113. A plurality of supporting components 12 are arranged at intervals on the main frame 111. The clamping component 112 is used for clamping with the processing equipment, and the connecting component 113 passes through the main frame 111 and is connected with the clamping component 112. In this way, it is beneficial to improve the convenience of connecting the carrying component 11 with the processing equipment.

[0104] In this embodiment, the main frame 111 is provided with a connection hole 1111. The clamping component 112 can be a T-shaped block, and the connecting component 113 can be a bolt. A T-shaped groove 310 (as Figure 2 shown) for clamping with the clamping component 112 is provided on the machine table 300 of the processing equipment. The connecting component 113 passes through the connection hole 1111 and is threadedly connected with the clamping component 112.

[0105] In this embodiment, each supporting component 12 includes a rotating frame 121, a supporting member 122 and a locking member 123. The rotating frame 121 is rotatably arranged on the carrying component 11; the supporting member 122 is rotatably arranged on the rotating frame 121, and the rotation axis of the supporting member 122 is parallel to the rotation axis of the rotating frame 121. The supporting member 122 is used for supporting the blank 400 when the rotating frame 121 rotates a preset angle; the locking member 123 is arranged on the rotating frame 121, and the locking member 123 is used for locking the rotating frame 121 to the carrying component 11 when the rotating frame 121 rotates a preset angle to limit the rotation of the rotating frame 121. Specifically, the rotating frame 121 is rotatably arranged on the main frame 111 of the carrying component 11. After the positioning component 21 is installed on the main frame 111 and the first clamping component 22 and the second clamping component 23 clamp and position the blank 400, the rotating frame 121 is rotated to drive the supporting member 122 to support the blank 400, and then the locking member 123 is operated to lock the rotating frame 121, so as to facilitate the support of the blank 400 within a certain thickness range and is beneficial to improving the stability of supporting the blank 400.

[0106] In this embodiment, the rotation angle of the rotating frame 121 is 0° - 90°, and the support height of the supporting member 122 is 0 mm - 85 mm.

[0107] In this embodiment, the main frame 111 is further provided with an opening 1112 and multiple pairs of assembly holes 1113. The opening 1112 is located in the middle of the main frame 111. The multiple pairs of assembly holes 1113 are arranged at intervals, and each pair of assembly holes 1113 are respectively located on opposite sides of the assembly hole 1113 and communicate with the opening 1112. The rotating frame 121 includes a rotating rod 1211 and two connecting blocks 1212. The rotating rod 1211 passes through a pair of assembly holes 1113, and one end of the rotating rod 1211 is threadedly connected to one of the assembly holes 1113. The two connecting blocks 1212 are arranged at intervals on the rotating rod 1211 and are located within the opening 1112. Both ends of the support member 122 are rotatably connected to the two connecting blocks 1212. The locking member 123 can be a locking nut. The locking member 123 is sleeved on the end of the rotating rod 1211 that is threadedly connected to the assembly hole 1113 and is threadedly connected to the rotating rod 1211. When the rotating frame 121 is rotated to drive the support member 122 to rotate, the rotating rod 1211 is rotated so that the rotating rod 1211 drives the support member 122 to rotate to a preset angle through the two connecting blocks 1212, and then the locking member 123 is screwed so that the locking member 123 abuts against the main frame 111 and locks the rotating rod 1211, which is beneficial to improving the convenience of locking the rotating frame 121.

[0108] In this embodiment, a limiting groove 1211a is provided at the position where the rotating rod 1211 is connected to the connecting block 1212. A clamping groove 1212a that is clamped with the limiting groove 1211a is provided at one end of the connecting block 1212 close to the rotating rod 1211. The rotating frame 121 further includes a first fastener 1213, and the first fastener 1213 can be a bolt. After the clamping groove 1212a is clamped with the limiting groove 1211a, the first fastener 1213 is used to pass through the connecting block 1212 and is threadedly connected to the rotating rod 1211, which is beneficial to improving the accuracy of connecting the connecting block 1212 to the rotating rod 1211 and the stability of the overall structure of the rotating frame 121.

[0109] Please refer further to Figure 5 and Figure 6, in this embodiment, rotation holes 1212b are formed at one ends of the two connecting blocks 1212 away from the rotating rod 1211, and sector-shaped grooves 1212c that are concentric with and communicate with the corresponding rotation holes 1212b are formed on one sides of the two connecting blocks 1212 close to each other. The support member 122 includes a support portion 1221 and two rotating portions 1222. The two rotating portions 1222 are respectively arranged at two ends of the support portion 1221 and inserted into the rotation holes 1212b formed in the two connecting blocks 1212. Sector-shaped protrusions 1222a extending into the corresponding sector-shaped grooves 1212c are convexly provided on the side walls of the two rotating portions 1222. The arc length of the sector-shaped groove 1212c is greater than the arc length of the sector-shaped protrusion 1222a. The cooperation between the sector-shaped groove 1212c and the sector-shaped protrusion 1222a limits the rotation angle of the support member 122, thereby facilitating the improvement of the stability of the support member 122 in supporting the blank 400.

[0110] In this embodiment, the support portion 1221 is a hollow structure, which is beneficial to reducing the weight of the support member 122.

[0111] In this embodiment, each support assembly 12 further includes two snap rings 124. The two snap rings 124 are respectively sleeved on the two rotating portions 1222 and respectively abutted against the two connecting blocks 1212. The two snap rings 124 are used to limit the movement of the support member 122 between the two connecting blocks 1212, thereby facilitating the improvement of the stability of the support member 122 in supporting the blank 400.

[0112] In some other embodiments, each support assembly 12 may also include a driving member (not shown in the figure) and a support block (not shown in the figure). The driving member may be a cylinder, an electric push rod, etc. The driving member is arranged on the main frame 111, and the support block is connected to the driving member. The driving member drives the support block to move to support the blank 400. The embodiments of the present application do not make specific limitations on this.

[0113] Please further refer to Figure 7 and Figure 8, in this embodiment, the positioning assembly 21 includes a secondary skeleton 211 and a fitting 212. The secondary skeleton 211 includes a frame body 2111 and multiple pairs of abutting portions 2112. The frame body 2111 is provided with an avoidance opening 2111a for multiple support assemblies 12 to extend into. The first clamping assembly 22 and the second clamping assembly 23 are both movably arranged on the frame body 2111 along the first direction and are arranged opposite to the avoidance opening 2111a. The multiple pairs of abutting portions 2112 are arranged at intervals around the avoidance opening 2111a. Each pair of abutting portions 2112 is respectively arranged on opposite sides of the frame body 2111 and symmetrically arranged. The abutting portions 2112 are used to abut against the bearing assembly 11; the fitting 212 is passed through any one of the abutting portions 2112 and is connected to the bearing assembly 11. Thus, when the positioning assembly 21 is installed on the bearing assembly 11, since each pair of abutting portions 2112 is symmetrically arranged, the positions where the positioning assembly 21 abuts against the bearing assembly 11 before and after flipping are exactly the same, so that the blank 400 has a unified coordinate before and after flipping, thereby reducing the operation difficulty of the staff; in addition, by arranging the fitting 212 to connect the bearing assembly 11 and the abutting portion 2112, it can effectively prevent the positioning mechanism 20 from driving the blank 400 to move when the processing equipment processes the blank 400, which is beneficial to improving the processing accuracy of the processing equipment for the blank 400.

[0114] In this embodiment, the multiple pairs of abutting portions 2112 include multiple pairs of first abutting portions 2112a and multiple pairs of second abutting portions 2112b. The multiple pairs of first abutting portions 2112a are respectively located at the included angle positions of the respective sides of the frame body 2111. The multiple pairs of second abutting portions 2112b are divided into two equal groups and arranged on opposite sides of the avoidance opening 2111a. First through holes 1114 (as Figure 4 shown) are respectively formed at the positions where the main skeleton 111 abuts against the multiple second abutting portions 2112b. Each second abutting portion 2112b is provided with a second through hole 2112b1. The fittings 212 can be multiple and can be bolts. The multiple fittings 212 respectively correspond to the multiple first through holes 1114 and the multiple second through holes 2112b1 one by one. Each fitting 212 passes through the corresponding second through hole 2112b1 and is threadedly connected to the corresponding first through hole 1114, which is beneficial to improving the stability after the assembly of the main skeleton 111 and the secondary skeleton 211 and facilitating the disassembly and assembly of the positioning assembly 21.

[0115] In this embodiment, the bearing assembly 11 is provided with a positioning protrusion 1141 (as Figure 3 shown). The positioning assembly 21 is provided with a positioning hole 2112a1. The positioning protrusion 1141 is inserted into the positioning hole 2112a1 to position the position of the positioning assembly 21 relative to the bearing assembly 11, which is beneficial to improving the accuracy of installing the positioning assembly 21 on the bearing assembly 11.

[0116] In this embodiment, there are multiple positioning protrusions 1141 and multiple positioning holes 2112a1. The multiple positioning holes 2112a1 are respectively formed on multiple first abutting portions 2112a. The multiple positioning protrusions 1141 are formed by the portions of multiple positioning pins 114 inserted into the main frame 111 protruding from the main frame 111. The multiple positioning pins 114 are respectively fixed to the main frame 111 by multiple fixing screws 115, facilitating the replacement of the positioning pins 114.

[0117] In some other embodiments, the positioning pins 114 may also be integrally formed with the main frame 111, and the embodiments of the present application do not make specific limitations in this regard.

[0118] In some other embodiments, positioning holes 2112a1 may also be formed on the bearing assembly 11. Correspondingly, positioning protrusions 1141 are provided on the positioning assembly 21. The embodiments of the present application do not make specific limitations in this regard.

[0119] In this embodiment, the frame body 2111 further has multiple first limiting holes 2111b and multiple second limiting holes 2111c arranged at intervals along the first direction. The multiple first limiting holes 2111b and the multiple second limiting holes 2111c are respectively located on opposite sides of the avoidance opening 2111a and on the movement paths of the first clamping assembly 22 and the second clamping assembly 23, and the multiple first limiting holes 2111b and the multiple second limiting holes 2111c correspond to each other one by one. Both the first clamping assembly 22 and the second clamping assembly 23 include a moving cross beam 221, a first plug-in member 222, a second plug-in member 223, and an extrusion unit 224. The moving cross beam 221 is slidably arranged on the frame body 2111 along the first direction and extends along the second direction. The two ends of the moving cross beam 221 are respectively located on the arrangement paths of the first limiting holes 2111b and the arrangement paths of the second limiting holes 2111c. The first plug-in member 222 passes through one end of the moving cross beam 221 and inserts into a first limiting hole 2111b when the moving cross beam 221 moves to a preset position. The second plug-in member 223 passes through the other end of the moving cross beam 221 and inserts into a second limiting hole 2111c when the moving cross beam 221 moves to a preset position. The extrusion unit 224 is movably arranged on the moving cross beam 221 along the second direction. The extrusion units 224 of the first clamping assembly 22 and the second clamping assembly 23 squeeze and position the blank 400 from both sides. In this way, it is convenient to adjust the distance between the first clamping assembly 22 and the second clamping assembly 23 according to the size of the blank 400, and it is convenient to position the blank 400 according to the position required by the blank 400 in the first direction and the second direction.

[0120] In this embodiment, fixing holes 2211 are formed at both ends of the moving cross beam 221. The first plug-in member 222 and the second plug-in member 223 can both be bolts. When the moving cross beam 221 moves to a preset position, the first plug-in member 222 and the second plug-in member 223 respectively pass through the corresponding fixing holes 2211 and are connected to the first limiting hole 2111b and the second limiting hole 2111c.

[0121] In this embodiment, two first scales 2111d are further formed on the frame body 2111. The two first scales 2111d are respectively located on one side of a plurality of first limiting holes 2111b and a plurality of second limiting holes 2111c, so as to facilitate moving the moving cross beam 221 to a preset position.

[0122] In other alternative embodiments, the moving cross beam 221 can be driven to move by a power component such as a linear module, and the embodiments of the present application do not make specific limitations thereto.

[0123] In this embodiment, a plurality of plugging holes 2212 are arranged at intervals along the second direction on the moving cross beam 221. The pressing unit 224 includes an adjusting member 2241 and a pressing member 2242. The adjusting member 2241 is inserted into one plugging hole 2212 and is threadedly connected to the plugging hole 2212. The pressing member 2242 is arranged between the moving cross beam 221 of the first clamping assembly 22 and the moving cross beam 221 of the second clamping assembly 23 and is connected to the adjusting member 2241. The pressing member 2242 is used to press and position the blank 400 under the drive of the adjusting member 2241. Specifically, the adjusting member 2241 can be a bolt. After the position of the blank 400 between the two moving cross beams 221 is determined, the pressing member 2242 is placed between the blank 400 and the corresponding moving cross beam 221, and then the adjusting member 2241 is inserted into the corresponding plugging hole 2212 and abuts against the corresponding pressing member 2242. By screwing the adjusting member 2241, the pressing member 2242 can press the blank 400 tightly. In this way, it is convenient to adjust the position of the blank 400 between the two moving cross beams 221, and it is beneficial to improve the accuracy and stability of the two pressing units 224 pressing and positioning the blank 400 from both sides.

[0124] In this embodiment, the pressing member 2242 can be made of a flexible material such as rubber, so as to effectively reduce the probability of damaging the blank 400.

[0125] In this embodiment, a second scale 2213 extending along the second direction is formed on the moving cross beam 221, so as to facilitate the two pressing units 224 positioning the blank 400 in the second direction.

[0126] In other alternative embodiments, the pressing unit 224 can also be driven to move by a power component such as a linear module, and the embodiments of the present application do not make specific limitations thereto.

[0127] In this embodiment, the positioning mechanism 20 further includes a plurality of limiting members 24. The plurality of limiting members 24 are respectively movably clamped to the moving cross beams 221 of the first clamping assembly 22 and the moving cross beams 221 of the second clamping assembly 23. Each limiting member 24 has a limiting surface 2411, and the limiting surface 2411 is used to abut against the side wall of the blank 400 in the third direction to limit the position of the blank 400 in the third direction, thereby facilitating improving the accuracy of the positioning mechanism 20 in positioning the blank 400 in the third direction.

[0128] In this embodiment, the limiting member 24 includes a first limiting portion 241, an extending portion 242, and a second limiting portion 243. The first limiting portion 241 and the second limiting portion 243 are respectively vertically provided at both ends of the extending portion 242, and the first limiting portion 241 and the second limiting portion 243 are spaced apart. The length of the first limiting portion 241 is greater than the length of the second limiting portion 243. The limiting surface 2411 is the side wall of the first limiting portion 241 facing the second limiting portion 243. A groove 244 for clamping with the moving cross beam 221 is formed among the first limiting portion 241, the extending portion 242, and the second limiting portion 243. When it is necessary to limit the position of the blank 400 in the third direction, the limiting member 24 is clamped with the moving cross beam 221, and the limiting surface 2411 is abutted against the side wall of the blank 400 in the third direction. Since the length of the second limiting portion 243 is short and does not protrude from the moving cross beam 221, the blank 400 can be avoided. After using the limiting member 24 to limit the position of the blank 400 in the third direction, the limiting member 24 is removed from the corresponding moving cross beam 221 to avoid interference of the limiting member 24 with the processing equipment for processing the blank 400.

[0129] In this embodiment, the positioning mechanism 20 further includes a tool setting member 25. The tool setting member 25 is provided on one side of the auxiliary frame 211. The tool setting member 25 has a first tool setting surface 251 and a second tool setting surface 252 parallel to the limiting surface 2411. The first tool setting surface 251 and the second tool setting surface 252 are respectively used for the tool (not shown in the figure) of the processing equipment to set the tool when the processing equipment processes the front and back surfaces of the blank 400, so as to facilitate determining the height of the tool when the processing equipment processes the front and back surfaces of the blank 400.

[0130] In this embodiment, when the limiting surface 2411 abuts against the side wall of the blank 400 in the third direction, the first tool - facing surface 251 and the second tool - facing surface 252 are in the same plane as the limiting surface 2411. In some other embodiments, the first tool - facing surface 251 and the second tool - facing surface 252 may not be in the same plane as the limiting surface 2411. As long as the distances between the first tool - facing surface 251 and the second tool - facing surface 252 and the limiting surface 2411 are determined in advance, and corresponding compensations are made after the tool abuts against the first tool - facing surface 251 and the second tool - facing surface 252 respectively for tool setting, the height of the tool during machining can be accurately determined. The embodiments of the present application do not make specific limitations on this.

[0131] In this embodiment, the positioning mechanism 20 further includes a second fastener 27. The second fastener 27 can be a bolt. The tool - setting member 25 is installed on one side of the sub - skeleton 211 through the second fastener 27, so as to facilitate the disassembly and assembly of the tool - setting member 25.

[0132] In this embodiment, the positioning mechanism 20 further includes a resisting member 26. The two ends of the resisting member 26 are respectively detachably inserted into at least one first limiting hole 2111b and at least one second limiting hole 2111c. The resisting member 26 is used to abut against the front surface of the blank 400 after the front surface of the blank 400 is machined, so as to support the blank 400 when the processing equipment machines the reverse surface of the blank 400. Specifically, since the filler needs to be filled into the recess formed after machining the front surface of the blank 400 and the filler is cured, when the reverse surface of the blank 400 is machined, the cured filler is likely to escape from the blank 400. By providing the resisting member 26 to support the blank 400 when the processing equipment machines the reverse surface of the blank 400, it can effectively prevent the cured filler from escaping from the blank 400, and there is no need to rotate the supporting assembly 12 again to support the blank 400, which is beneficial to improving the quality of the processing equipment for machining the blank 400 and reducing the operation difficulty of the staff.

[0133] In this embodiment, the resisting member 26 includes a resisting plate 261 and at least two locking screws 262. When there are two locking screws 262, the two locking screws 262 respectively pass through the two ends of the resisting member 26 and are connected to a first limiting hole 2111b and a second limiting hole 2111c. When there are multiple locking screws 262, the multiple locking screws 262 are divided into two groups and respectively pass through the two ends of the resisting member 26 and are connected to multiple first limiting holes 2111b and multiple second limiting holes 2111c. In this way, it is convenient to disassemble and assemble the resisting member 26.

[0134] In summary, during the front and back processing of the blank 400, the positioning fixture 100 of the embodiment of the present application does not need to disassemble the bearing mechanism 10, and only needs to disassemble and assemble the positioning mechanism 20 and the bearing mechanism 10. Since the efficiency of disassembling and assembling the positioning mechanism 20 and the bearing mechanism 10 is high, the standby time of the processing equipment is short, thereby improving the utilization rate of the processing equipment. In addition, during the front and back processing of the blank 400, only the first clamping component 22 and the second clamping component 23 need to be moved to position the blank 400 once. When the positioning mechanism 20 and the blank 400 are flipped, the blank 400 will not have a position deviation, and there is no need to re-debug the processing program of the processing equipment, thereby reducing the operation difficulty of the staff.

[0135] For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present application is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

[0136] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit them. Although the present application has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A positioning fixture for positioning a blank, characterized in that: include: The bearing mechanism comprises a bearing assembly and a plurality of supporting assemblies, wherein the bearing assembly is used to be connected to the processing equipment, and the plurality of supporting assemblies are arranged at intervals on the bearing assembly; The positioning mechanism includes a positioning component, a first clamping component and a second clamping component. The positioning component is detachably arranged on the supporting component, the first clamping component and the second clamping component are movably arranged on the positioning component, the first clamping component and the second clamping component are used to clamp and position the blank, and the multiple supporting components are used to support the blank.

2. The positioning fixture according to claim 1, characterized in that: Each of the support assemblies comprises: A rotating frame, rotatably mounted on the bearing assembly; A support member is rotatably disposed on the rotating frame, and a rotation axis of the support member is parallel to a rotation axis of the rotating frame, and the support member is used to support the blank when the rotating frame rotates a preset angle; A locking member is provided on the rotating frame, and is used to lock the rotating frame to the bearing assembly when the rotating frame rotates a preset angle, so as to limit the rotation of the rotating frame.

3. The positioning fixture according to claim 1, characterized in that: One of the bearing component and the positioning component is provided with a positioning protrusion, and the other of the bearing component and the positioning component is provided with a positioning hole. The positioning protrusion is inserted into the positioning hole to position the positioning component relative to the bearing component.

4. The positioning fixture according to claim 1, characterized in that: The bearing assembly comprises: A main frame, wherein a plurality of the support components are arranged at intervals on the main frame; A clamping piece, used for clamping with the processing equipment; A connecting piece is passed through the main frame and connected to the clamping piece.

5. The positioning fixture according to claim 1, characterized in that: The positioning component comprises: A secondary frame, the secondary frame comprises a frame body and a plurality of pairs of abutment parts, the frame body is provided with a position avoidance opening for allowing a plurality of the support components to extend therein, the first clamping component and the second clamping component are both movably arranged on the frame body along a first direction and arranged directly opposite to the position avoidance opening, a plurality of pairs of the abutment parts are arranged at intervals around the position avoidance opening, each pair of the abutment parts are respectively arranged on opposite sides of the frame body and are symmetrically arranged, and the abutment parts are used to abut against the bearing components; An assembly part is passed through any of the abutting parts and connected to the bearing assembly.

6. The positioning fixture according to claim 5, characterized in that: The frame body is further provided with a plurality of first limiting holes and a plurality of second limiting holes spaced apart along the first direction, the plurality of first limiting holes and the plurality of second limiting holes are respectively located on opposite sides of the avoidance opening and on the moving paths of the first clamping assembly and the second clamping assembly, the plurality of first limiting holes and the plurality of second limiting holes correspond to each other one by one, and the first clamping assembly and the second clamping assembly both include: A movable crossbeam is slidably disposed on the frame body along the first direction and extends along a second direction perpendicular to the first direction, wherein two ends of the movable crossbeam are respectively located on an arrangement path of the first limiting holes and an arrangement path of the second limiting holes; A first plug-in connector, used to pass through one end of the moving beam and be inserted into the first limiting hole when the moving beam moves to a preset position; A second plug-in connector, used for passing through the other end of the moving beam and inserting into the second limiting hole when the moving beam moves to a preset position; An extrusion unit is movably disposed on the movable crossbeam along the second direction, and the extrusion unit of the first clamping assembly and the extrusion unit of the second clamping assembly are used to extrude and position the blank from both sides.

7. The positioning fixture according to claim 6, characterized in that: The movable crossbeam is provided with a plurality of plug holes at intervals along the second direction, and the extrusion unit comprises: An adjusting member, inserted into one of the plug holes and threadedly connected to the plug hole; An extrusion member is disposed between the moving crossbeam of the first clamping assembly and the moving crossbeam of the second clamping assembly and is connected to the adjusting member, and is used for extruding and positioning the blank under the drive of the adjusting member.

8. The positioning fixture according to claim 6, characterized in that: The positioning mechanism also includes a plurality of limit members, which are respectively movably clamped on the movable beam of the first clamping assembly and the movable beam of the second clamping assembly, each of which has a limit surface, which is used to abut against the side wall of the blank in the third direction to limit the position of the blank in the third direction, and the first direction, the second direction and the third direction are perpendicular to each other.

9. The positioning fixture according to claim 8, characterized in that: The positioning mechanism also includes a tool setting piece, which is arranged on one side of the sub-frame, and has a first tool setting surface and a second tool setting surface parallel to the limiting surface, and the first tool setting surface and the second tool setting surface are respectively used for tool setting of the processing equipment when the processing equipment processes the front and back sides of the blank.

10. The positioning fixture according to claim 6, characterized in that: The positioning mechanism also includes a stopper, both ends of which are detachably inserted into at least one of the first limiting holes and at least one of the second limiting holes, and the stopper is used to abut against the front side of the blank after the front side of the blank is processed, so as to support the blank when the processing equipment processes the back side of the blank.

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