Positioning jig

Abstract

The utility model discloses a positioning jig, which relates to the technical field of clamps, and comprises a base, a positioning seat, a pressing driving part, a plurality of pressing assemblies and an inner support mechanism, the positioning seat is arranged on the base, a positioning boss is convexly arranged on one side, deviating from the base, of the positioning seat, and the positioning boss is used for extending into a cavity of the box-type product to position the box-type product; the pressing driving part is arranged on the base, penetrates through the positioning seat and the positioning boss and extends out of the side, away from the base, of the positioning boss; the multiple pressing assemblies are connected with the pressing driving part and located on the side, away from the base, of the positioning boss, and the multiple pressing assemblies are used for swinging in the direction close to or away from the positioning boss under driving of the pressing driving part so as to abut against or loosen multiple convex ribs of the box-shaped product correspondingly; the inner supporting mechanism is arranged on the base and used for abutting against and supporting the inner wall of the cavity when the multiple pressing assemblies abut against the multiple convex ribs. By means of the positioning jig, the machining yield of the box-shaped products is increased.

Description

Technical Field

[0001] The present application relates to the field of fixture technology, and in particular to a positioning fixture. Background Art

[0002] Currently, when machining the outer walls of box-shaped products, a method of applying large-area negative pressure to the inner wall of the box-shaped product is typically used to secure the box-shaped product. However, since the sidewalls of box-shaped products are generally thin, this method cannot effectively secure and support the inner wall of the box-shaped product. When machining the outer walls of box-shaped products, problems such as chatter marks, dimensional deviations, and contour deviations are easily caused by displacement. Furthermore, the box-shaped product is prone to deformation during machining, resulting in a low yield rate for box-shaped product machining. Utility Model Content

[0003] In view of the above, it is necessary to propose a positioning fixture to improve the yield rate of box-type product processing.

[0004] The embodiment of the present application provides a positioning fixture for positioning a box-type product, wherein one side of the box-type product is provided with an opening connected to the cavity inside the box-type product, and the inner wall of the cavity is provided with a plurality of ribs at intervals, and the plurality of ribs are arranged adjacent to the opening, and the positioning fixture comprises a base, a positioning seat, a clamping drive, a plurality of clamping components and an internal support mechanism; the positioning seat is provided on the base, and the side of the positioning seat facing away from the base is used to abut against the side of the box-type product with the opening, and the side of the positioning seat facing away from the base is provided with a positioning boss, and the positioning boss is used to extend into the cavity to position the box-type product; the clamping drive is provided on the base, and the clamping drive The movable member is passed through the positioning seat and the positioning boss and extends out from the side of the positioning boss away from the base; a plurality of clamping components are connected to the clamping drive component and are located on the side of the positioning boss away from the base, and the plurality of clamping components are arranged at intervals, and the plurality of clamping components are used to swing toward or away from the positioning boss under the drive of the clamping drive component to respectively press or release the plurality of ribs; an internal support mechanism is provided on the base, and the internal support mechanism is passed through the positioning seat and the positioning boss and extends out from the side of the positioning boss away from the base, and the internal support mechanism is used to abut and support the inner wall of the cavity when the plurality of clamping components press the plurality of ribs.

[0005] The positioning fixture of the embodiment of the present application roughly positions the box-type product by providing a positioning boss that extends into the cavity, provides a pressing drive member to drive multiple pressing components to press against multiple ribs of the box-type product to press and position the box-type product, and provides an internal support mechanism to abut and support the inner wall of the cavity. When the outer wall of the box-type product is processed, the multiple pressing components press the box-type product against the positioning seat, and the internal support mechanism abuts and supports the inner wall of the cavity. This can reduce the probability of the box-type product having problems such as vibration marks, dimensional deviation and contour deviation due to displacement during processing, and can also reduce the probability of the box-type product being deformed during processing, thereby improving the yield rate of box-type product processing.

[0006] In some embodiments, each of the clamping assemblies includes a clamping member and a connecting member, one end of the clamping member is rotatably connected to the clamping drive member, and the other end of the clamping member is inclined toward the edge of the positioning boss away from the base, and the two ends of the connecting member are respectively rotatably connected to the positioning boss and the middle of the clamping member, and the clamping member is used to swing toward or away from the positioning boss under the drive of the clamping drive member to press or release one of the ribs, and the connecting member is used to support the clamping member and limit the swing angle of the clamping member when the clamping member swings.

[0007] In some embodiments, the clamping drive member includes a driving body and multiple output shafts, the driving body is arranged on the base, the multiple output shafts are connected to the driving body, and the multiple output shafts are slid through the positioning seat and the positioning boss and are respectively rotatably connected to the clamping members of the multiple clamping assemblies. The multiple output shafts move simultaneously under the drive of the driving body to drive the clamping members of the multiple clamping assemblies to swing simultaneously.

[0008] In some embodiments, the positioning seat is provided with a plurality of avoidance holes respectively extending from the side of the positioning seat toward the base to the side of the positioning boss away from the base, and the plurality of avoidance holes are spaced apart adjacent to the edge of the positioning boss; the internal support mechanism includes a plurality of internal support components, each of the internal support components includes a connected movable driving member and an internal support member, a plurality of the movable driving members are spaced apart on the base, a plurality of the internal support members respectively pass through the plurality of avoidance holes and extend to the side of the positioning boss away from the base, and the plurality of the internal support members are respectively used to approach or move away from each other under the drive of the plurality of movable driving members, so as to abut and support the inner wall of the cavity when moving away from each other.

[0009] In some embodiments, an end of the inner support member away from the movable driving member is provided with an abutment protrusion extending toward the edge of the positioning boss away from the base, and the abutment protrusion is used to abut and support the inner wall of the cavity.

[0010] In some embodiments, a side of the inner support member close to the edge of the positioning boss is provided with an avoidance groove, and the avoidance groove is located on the side of the abutting protrusion close to the positioning boss and is arranged opposite to the inner wall of the avoidance hole.

[0011] In some embodiments, the positioning fixture also includes a protective cover, which is arranged on the side of the positioning boss away from the base, and the multiple clamping assemblies and the multiple internal support members all extend into the protective cover, and the peripheral side wall of the protective cover is provided with multiple first through-holes and multiple second through-holes arranged at intervals, and the multiple first through-holes are respectively arranged corresponding to the multiple clamping assemblies, and the multiple first through-holes are respectively used for allowing the multiple clamping assemblies to pass through, and the multiple second through-holes are respectively arranged corresponding to the multiple internal support members, and the multiple second through-holes are respectively used for allowing the multiple internal support members to pass through.

[0012] In some embodiments, the positioning fixture further includes an adsorption member, which is disposed on a side of the protective cover away from the positioning boss, and is used to adsorb and fix the box-type product.

[0013] In some embodiments, an adsorption hole and a plurality of guide grooves connected to the adsorption hole are provided on the side of the adsorption member facing away from the protective cover, and the plurality of guide grooves are staggered on the side of the adsorption member facing away from the protective cover. The adsorption hole is used for allowing negative pressure gas to pass through to adsorb and fix the box-type product, and the plurality of guide grooves are used to guide the negative pressure gas to the adsorption hole.

[0014] In some embodiments, the base includes a base body and multiple support members, the multiple support members are arranged at intervals on the base body, and the multiple support members enclose to form an assembly space, the positioning seat is arranged at one end of the multiple support members away from the base body, the clamping drive member is arranged on the base body and located in the assembly space, and the internal support mechanism is arranged on the base body and a portion of it is located in the assembly space. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of the positioning fixture provided in the embodiment of the present application and the applicable box-type product.

[0016] Figure 2 yes Figure 1 The three-dimensional structure diagram of the positioning fixture after removing the protective cover is shown.

[0017] Figure 3 yes Figure 1 The three-dimensional structural diagram of the applicable box-type product is shown.

[0018] Figure 4 yes Figure 1The diagram shows the exploded structure of the positioning fixture with the protective cover removed.

[0019] Figure 5 yes Figure 4 The figure shows a schematic diagram of the three-dimensional structure of the positioning fixture in which the pressing drive member, the pressing assembly and the fixing block cooperate with each other.

[0020] Figure 6 yes Figure 4 The three-dimensional structural diagram of the inner support component in the positioning fixture is shown.

[0021] Figure 7 yes Figure 4 Schematic diagram of the three-dimensional structure of the adsorption part in the positioning fixture shown.

[0022] Description of main component symbols

[0023] Positioning fixture 100

[0024] Base 10

[0025] Base 11

[0026] Support member 12

[0027] Fixed plate 13

[0028] Assembly space 14

[0029] Positioning seat 20

[0030] Positioning boss 21

[0031] Storage slot 22

[0032] Perforation 23

[0033] Avoidance hole 24

[0034] Press drive 30

[0035] Drive body 31

[0036] Output shaft 32

[0037] Compression assembly 40

[0038] Pressing member 41

[0039] Connector 42

[0040] Fixed block 43

[0041] Internal support mechanism 50

[0042] Internal support assembly 51

[0043] Mobile driving part 511

[0044] Drive shaft 5111

[0045] Internal support 512

[0046] Abutment protrusion 5121

[0047] Avoidance slot 5122

[0048] Protective cover 60

[0049] First through port 61

[0050] Second through port 62

[0051] Protective cover 70

[0052] Adsorption parts 80

[0053] Adsorption hole 81

[0054] Diversion trough 82

[0055] Air escape hole 83

[0056] Box type product 200

[0057] Cavity 210

[0058] Opening 220

[0059] Convex rib 230

[0060] Through hole 240 DETAILED DESCRIPTION

[0061] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application.

[0062] 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 accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "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 "multiple" is two or more, unless otherwise clearly and specifically defined.

[0063] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. Some embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0064] See also Figure 1 and Figure 3 The embodiment of the present application provides a positioning fixture 100 for positioning a box-type product 200. An opening 220 is provided on one side of the box-type product 200, communicating with a cavity 210 within the box-type product 200. A plurality of ribs 230 are provided at intervals along the inner wall of the cavity 210. The plurality of ribs 230 are all disposed adjacent to the opening 220. The box-type product 200 may be in the shape of a rectangular parallelepiped, a triangular prism, a hexagonal prism, or the like. For ease of understanding, the embodiment of the present application is described using the box-type product 200 as a rectangular parallelepiped. Obviously, this is not a limitation of the embodiment of the present application.

[0065] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In this embodiment, the positioning fixture 100 includes a base 10 , a positioning seat 20 , a pressing drive 30 , a plurality of pressing components 40 and an internal support mechanism 50 .

[0066] The positioning seat 20 is provided on the base 10 , and the side of the positioning seat 20 away from the base 10 is used to abut against the side of the box-type product 200 where the opening 220 is opened. The side of the positioning seat 20 away from the base 10 is provided with a positioning boss 21 , which is used to extend into the cavity 210 to position the box-type product 200.

[0067] The pressing driving member 30 is disposed on the base 10 , and the pressing driving member 30 penetrates the positioning seat 20 and the positioning boss 21 and extends out of a side of the positioning boss 21 away from the base 10 .

[0068] Multiple clamping assemblies 40 are connected to the clamping drive 30 and are located on the side of the positioning boss 21 away from the base 10. The multiple clamping assemblies 40 are arranged at intervals. The multiple clamping assemblies 40 are used to swing toward or away from the positioning boss 21 under the drive of the clamping drive 30 to respectively press or release the multiple ribs 230.

[0069] The internal support mechanism 50 is provided on the base 10, and the internal support mechanism 50 is passed through the positioning seat 20 and the positioning boss 21 and extends out of the side of the positioning boss 21 away from the base 10. The internal support mechanism 50 is used to abut and support the inner wall of the cavity 210 when multiple clamping components 40 press against multiple ribs 230.

[0070] Specifically, the size of the positioning boss 21 is slightly smaller than the size of the opening 220. When the positioning jig 100 positions the box-type product 200, the box-type product 200 is first placed on the positioning seat 20, and the positioning boss 21 extends into the cavity 210 through the opening 220 to roughly position the box-type product 200. Then, the clamping drive 30 drives the multiple clamping components 40 to swing toward the direction close to the positioning boss 21. The multiple clamping components 40 respectively press against the multiple ribs 230, thereby pressing the box-type product 200 on the positioning seat 20. At the same time, the internal support mechanism 50 abuts and supports the inner wall of the cavity 210. In this way, when the outer wall of the box-type product 200 is processed, the multiple clamping components 40 press the box-type product 200 on the positioning seat 20, and the internal support mechanism 50 abuts and supports the inner wall of the cavity 210, thereby reducing the probability of the box-type product 200 causing vibration marks, dimensional deviation, and contour deviation due to displacement during processing, and reducing the probability of the box-type product 200 being deformed during processing, thereby improving the processing yield of the box-type product 200.

[0071] In this embodiment, the base 10 includes a base 11 and a plurality of support members 12. The plurality of support members 12 are spaced apart from each other on the base 11 and enclose an assembly space 14. The positioning seat 20 is disposed at one end of the plurality of support members 12 away from the base 11. The pressing drive member 30 is disposed on the base 11 and located in the assembly space 14. The internal support mechanism 50 is disposed on the base 11, and a portion of the internal support mechanism 50 is located in the assembly space 14. This helps to improve the compactness of the overall structure of the positioning jig 100.

[0072] In this embodiment, the base 10 further includes a plurality of fixing plates 13. A fixing plate 13 is provided between each two adjacent support members 12. The two ends of each fixing plate 13 are respectively connected to the ends of the corresponding two adjacent support members 12 that are away from the base body 11. Thus, by providing multiple fixing plates 13 to secure the multiple support members 12, shaking of the multiple support members 12 can be effectively prevented, thereby facilitating improved stability of the multiple support members 12 in supporting the positioning base 20.

[0073] Please refer to Figure 5In this embodiment, each clamping assembly 40 includes a clamping member 41 and a connecting member 42. One end of the clamping member 41 is rotatably connected to the clamping driver 30, and the other end of the clamping member 41 is inclined toward the edge of the positioning boss 21 away from the base 10. The two ends of the connecting member 42 are rotatably connected to the positioning boss 21 and the middle of the clamping member 41, respectively. The clamping member 41 is driven by the clamping driver 30 to swing toward or away from the positioning boss 21 to press or release a rib 230. The connecting member 42 is used to support the clamping member 41 and limit the swing angle of the clamping member 41 when the clamping member 41 swings. Specifically, the clamping member 41 and the connecting member 42 are both block-shaped, and the clamping member 41 and the connecting member 42 form a hinge structure. When the box-type product 200 is placed on the positioning seat 20, the pressing driving member 30 drives the pressing member 41 to swing in the direction away from the positioning boss 21, and the end of the pressing member 41 connected to the pressing driving member 30 is close to the positioning boss 21, and the end of the pressing member 41 away from the pressing driving member 30 is away from the positioning boss 21, and the ends of the pressing members 41 away from the pressing driving member 30 are close to each other, so that the cavity 210 of the box-type product 200 can be effectively avoided; when the box-type product 200 needs to be pressed, the pressing driving member 30 drives the pressing member 41 to It swings in the direction close to the positioning boss 21, and the end of the pressing member 41 connected to the pressing drive member 30 is away from the positioning boss 21, and the end of the pressing member 41 away from the pressing drive member 30 is close to the positioning boss 21, and the ends of the multiple pressing members 41 away from the pressing drive member 30 are away from each other, so as to facilitate the multiple pressing members 41 to press against the multiple ribs 230 of the box-type product 200; and the hinge structure has high flexibility. When the height of the rib 230 deviates within a certain range, the pressing member 41 can still effectively press against the corresponding rib 230.

[0074] In this embodiment, a plurality of fixing blocks 43 are provided on the side of the positioning boss 21 away from the base 10. The plurality of fixing blocks 43 correspond one-to-one to the plurality of connecting members 42. The end of the connecting member 42 away from the clamping member 41 is rotatably connected to the corresponding fixing block 43, thereby facilitating the connection between the connecting member 42 and the positioning boss 21.

[0075] In some other embodiments, the plurality of fixing blocks 43 may also be an integral structure with the positioning boss 21 , and the plurality of fixing blocks 43 are part of the positioning boss 21 , which is not specifically limited in the embodiment of the present application.

[0076] In this embodiment, the compression drive member 30 includes a drive body 31 and a plurality of output shafts 32. The drive body 31 is provided on the base body 11 of the base 10 and is located in the assembly space 14. The plurality of output shafts 32 are connected to the drive body 31. The plurality of output shafts 32 are slidably provided through the positioning seat 20 and the positioning boss 21 and are respectively rotatably connected to the compression members 41 of the plurality of compression assemblies 40. The plurality of output shafts 32 move simultaneously under the drive of the drive body 31 to drive the compression members 41 of the plurality of compression assemblies 40 to swing simultaneously. In this way, the plurality of compression members 41 can be synchronously pressed against the plurality of ribs 230, thereby preventing the plurality of ribs 230 from being displaced due to uneven force, thereby facilitating improvement in the accuracy of the positioning jig 100 in positioning the box-type product 200.

[0077] In this embodiment, the pressing driving member 30 may be a multi-axis cylinder, which is beneficial for reducing the size and cost of the pressing driving member 30 .

[0078] In this embodiment, a receiving groove 22 is defined on the side of the positioning boss 21 facing away from the base 10. The bottom of the receiving groove 22 defines a plurality of spaced-apart through-holes 23. The plurality of output shafts 32 slide through the plurality of through-holes 23. A plurality of fixing blocks 43 are mounted on the bottom of the receiving groove 22, and the plurality of fixing blocks 43 are located on one side of the plurality of through-holes 23. The plurality of pressing members 41 and portions of the connecting members 42 of the plurality of pressing assemblies 40 are located in the receiving groove 22. The provision of the receiving groove 22 advantageously reduces the size of the positioning jig 100, thereby facilitating the positioning of the smaller box-shaped products 200.

[0079] Please refer to further Figure 6In this embodiment, the positioning seat 20 is provided with a plurality of avoidance holes 24 extending from the side of the positioning seat 20 toward the base 10 to the side of the positioning boss 21 away from the base 10, and the plurality of avoidance holes 24 are arranged at intervals adjacent to the edge of the positioning boss 21; the internal support mechanism 50 includes a plurality of internal support components 51, each internal support component 51 includes a connected movable driving member 511 and an internal support member 512, a plurality of movable driving members 511 are arranged at intervals on the base 10, and a plurality of internal support members 512 respectively pass through the plurality of avoidance holes 24 and extend to the side of the positioning boss 21 away from the base 10, and the plurality of internal support members 512 are respectively used to approach or move away from each other under the drive of the plurality of movable driving members 511, so as to abut and support the inner wall of the cavity 210 when moving away from each other. Specifically, the avoidance hole 24 passes through the bottom of the receiving groove 22, and the width of the avoidance hole 24 is greater than the thickness of the internal support member 512, thereby allowing the internal support member 512 to move within the avoidance hole 24 toward or away from the center of the positioning boss 21. When the internal support mechanism 50 abuts and supports the inner wall of the cavity 210, the multiple movable driving members 511 drive the multiple internal support members 512 to move simultaneously and move them away from each other. The multiple internal support members 512 abut and support the inner wall of the cavity 210 from multiple positions, thereby improving the stability of the internal support mechanism 50 in supporting the box-type product 200. When the box-type product 200 is processed, the multiple movable driving members 511 drive the multiple internal support members 512 to move simultaneously and move them closer together, thereby facilitating the removal of the processed box-type product 200.

[0080] In this embodiment, an abutment protrusion 5121 is provided on one end of the inner support member 512 away from the movable driving member 511, extending toward the side of the edge of the positioning boss 21 away from the base 10. The abutment protrusion 5121 is used to abut and support the inner wall of the cavity 210. The provision of the abutment protrusion 5121 facilitates the abutment and support of the inner wall of the cavity 210 when the inner support members 512 are away from each other. In addition, the inner support members 512 can support the inner wall of the cavity 210 with a relatively small movement stroke, thereby facilitating a reduction in the size of the avoidance hole 24 and the positioning seat 20, and further facilitating a reduction in the size of the positioning fixture 100.

[0081] In this embodiment, an escape groove 5122 is defined on one side of the inner support member 512 near the edge of the positioning boss 21. The escape groove 5122 is located on the side of the abutment protrusion 5121 near the positioning boss 21 and is directly opposite the inner wall of the escape hole 24. This helps further reduce the size of the escape hole 24 and the positioning seat 20, thereby further reducing the size of the positioning jig 100.

[0082] In this embodiment, the movable driving member 511 has a floating driving shaft 5111, which is connected to the inner support member 512. An elastic member (not shown) is provided in the movable driving member 511, which elastically supports the driving shaft 5111. When the driving shaft 5111 drives the inner support member 512 to abut against the inner wall of the cavity 210, the elastic member provides a buffer, thereby effectively reducing the probability of the inner support member 512 crushing the box-type product 200.

[0083] In this embodiment, a self-locking block (not shown) is also provided in the movable driving member 511. The self-locking block locks the driving shaft 5111 when the driving shaft 5111 drives the inner support member 512 to abut against the inner wall of the cavity 210, thereby preventing the box-type product 200 from applying pressure to the inner support member 512 to cause the inner support member 512 to move when processing the outer wall of the box-type product 200.

[0084] In some other embodiments, the internal support mechanism 50 can also be driven by a power part such as a clamping cylinder (not shown) to drive multiple internal support parts 512 to move closer to or away from each other. When the multiple internal support parts 512 move away from each other, the multiple internal support parts 512 support the inner wall of the cavity 210, and when the multiple internal support parts 512 move closer to each other, they release the inner wall of the cavity 210. The embodiments of the present application do not make specific limitations on this.

[0085] Please refer again Figure 3 、 Figure 4 and Figure 6 In this embodiment, the positioning jig 100 further includes a protective cover 60, which is provided on the side of the positioning boss 21 facing away from the base 10. The plurality of clamping assemblies 40 and the plurality of internal support members 512 all extend into the protective cover 60. The peripheral sidewall of the protective cover 60 is provided with a plurality of first through-holes 61 and a plurality of second through-holes 62 that are spaced apart. The plurality of first through-holes 61 are respectively provided corresponding to the plurality of clamping assemblies 40, and the plurality of first through-holes 61 are respectively used to allow the plurality of clamping assemblies 40 to pass through. The plurality of second through-holes 62 are respectively provided corresponding to the plurality of internal support members 512, and the plurality of second through-holes 62 are respectively used to allow the plurality of internal support members 512 to pass through. Specifically, when the positioning jig 100 positions the box-type product 200, the plurality of first through-holes 61 allow the clamping members 41 of the plurality of clamping assemblies 40 to pass through, and the plurality of second through-holes 62 allow the abutting protrusions 5121 on the plurality of internal support members 512 to pass through. The provision of the protective cover 60 can effectively prevent debris generated during processing of the box-shaped product 200 from falling onto the positioning boss 21 and affecting the normal operation of the plurality of pressing assemblies 40 and the plurality of inner support members 512 .

[0086] Please refer again Figure 1 、 Figure 2 and Figure 4In this embodiment, the positioning fixture 100 also includes a protective cover 70, which is arranged on the base body 11 and surrounds the outer walls of the multiple support members 12 and the multiple fixed plates 13, thereby effectively preventing debris generated during the processing of the box-type product 200 from falling onto the clamping drive member 30 and the multiple moving drive members 511 and affecting the normal operation of the clamping drive member 30 and the multiple moving drive members 511.

[0087] Please refer to Figure 7 In this embodiment, the positioning jig 100 further includes a suction member 80, which is disposed on the side of the protective cover 60 facing away from the positioning boss 21. The suction member 80 is used to suction and secure the box-shaped product 200. This helps improve the firmness and stability of the positioning jig 100 in positioning the box-shaped product 200, and also helps improve the yield rate of the box-shaped product 200 during processing.

[0088] In this embodiment, a suction hole 81 and a plurality of guide grooves 82 communicating with the suction hole 81 are provided on the side of the suction member 80 facing away from the protective cover 60. The plurality of guide grooves 82 are staggered on the side of the suction member 80 facing away from the protective cover 60. The suction hole 81 is used to allow negative pressure gas to pass through to adsorb and fix the box-type product 200, and the plurality of guide grooves 82 are used to guide the negative pressure gas to the suction hole 81. By providing multiple guide grooves 82, the area of the suction member 80 that draws negative pressure can be increased, thereby facilitating improved firmness and stability of the positioning jig 100 in positioning the box-type product 200.

[0089] In this embodiment, an air avoidance hole 83 is opened in the middle of the side of the adsorption member 80 facing away from the protective cover 60. Since a through hole 240 needs to be processed at the bottom of the box-type product 200, the air avoidance hole 83 is provided to facilitate avoiding the processing tool when processing the through hole 240 of the product.

[0090] To sum up, the positioning fixture 100 of the embodiment of the present application roughly positions the box-type product 200 by setting a positioning boss 21 to extend into the cavity 210, and sets a clamping drive 30 to drive multiple clamping components 40 to respectively press the multiple ribs 230 of the box-type product 200 to clamp and position the box-type product 200, and sets an internal support mechanism 50 to abut and support the inner wall of the cavity 210. When the outer wall of the box-type product 200 is processed, the multiple clamping components 40 press the box-type product 200 on the positioning seat 20, and the internal support mechanism 50 abuts and supports the inner wall of the cavity 210, thereby reducing the probability of the box-type product 200 having problems such as vibration marks, dimensional deviation and contour deviation due to displacement during processing, and reducing the probability of the box-type product 200 being deformed during processing, thereby improving the processing yield of the box-type product 200.

[0091] It will be apparent to those skilled in the art that the present application is not limited to the details of the exemplary embodiments described above, and that the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present application is defined by the appended claims rather than the foregoing description, and all variations that come within the meaning and range of equivalents of the claims are intended to be embraced herein.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present application.

Claims

1. A positioning fixture, characterized in that: Used to position a box-type product, one side of the box-type product is provided with an opening communicating with a cavity inside the box-type product, the inner wall of the cavity is provided with a plurality of ribs spaced apart, and the plurality of ribs are all provided adjacent to the opening, the positioning jig comprises: base; A positioning seat is provided on the base, wherein a side of the positioning seat facing away from the base is used to abut against a side of the box-type product having the opening, and a positioning boss is provided on a side of the positioning seat facing away from the base, and the positioning boss is used to extend into the cavity to position the box-type product; a pressing drive member, which is provided on the base and passes through the positioning seat and the positioning boss and extends out of a side of the positioning boss away from the base; a plurality of pressing assemblies connected to the pressing drive and located on a side of the positioning boss facing away from the base, the plurality of pressing assemblies being spaced apart and configured to swing toward or away from the positioning boss under the drive of the pressing drive to respectively press or release the plurality of ribs; An internal support mechanism is provided on the base, and the internal support mechanism passes through the positioning seat and the positioning boss and extends out of the side of the positioning boss away from the base. The internal support mechanism is used to abut and support the inner wall of the cavity when multiple clamping assemblies press multiple ribs.

2. The positioning fixture according to claim 1, wherein: Each of the clamping assemblies includes a clamping member and a connecting member, one end of the clamping member is rotatably connected to the clamping drive member, and the other end of the clamping member is inclined toward the edge of the positioning boss away from the base, and the two ends of the connecting member are respectively rotatably connected to the positioning boss and the middle of the clamping member. The clamping member is used to swing toward or away from the positioning boss under the drive of the clamping drive to press or release one of the ribs, and the connecting member is used to support the clamping member and limit the swing angle of the clamping member when the clamping member swings.

3. The positioning jig according to claim 2, wherein: The clamping drive member includes a driving body and multiple output shafts. The driving body is arranged on the base. The multiple output shafts are connected to the driving body, and the multiple output shafts are slid through the positioning seat and the positioning boss and are respectively rotatably connected to the clamping members of the multiple clamping assemblies. The multiple output shafts move simultaneously under the drive of the driving body to drive the clamping members of the multiple clamping assemblies to swing simultaneously.

4. The positioning jig according to claim 1, wherein: The positioning seat is provided with a plurality of avoidance holes respectively extending from a side of the positioning seat toward the base to a side of the positioning boss away from the base, and the plurality of avoidance holes are spaced apart adjacent to the edge of the positioning boss; The internal support mechanism includes a plurality of internal support components, each of the internal support components includes a connected movable driving member and an internal support member, the plurality of movable driving members are arranged at intervals on the base, the plurality of internal support members respectively pass through the plurality of avoidance holes and extend to the side of the positioning boss away from the base, and the plurality of internal support members are respectively used to approach or move away from each other under the drive of the plurality of movable driving members, so as to abut and support the inner wall of the cavity when moving away from each other.

5. The positioning jig according to claim 4, wherein: An abutment protrusion is provided on one end of the inner support member away from the movable driving member and extends toward a side of the edge of the positioning boss away from the base, and the abutment protrusion is used to abut and support the inner wall of the cavity.

6. The positioning jig according to claim 5, wherein: An avoidance groove is provided on one side of the edge of the inner support member close to the positioning boss. The avoidance groove is located on the side of the abutting protrusion close to the positioning boss and is directly opposite to the inner wall of the avoidance hole.

7. The positioning jig according to claim 4, wherein: The positioning jig also includes a protective cover, which is arranged on the side of the positioning boss away from the base, and the multiple clamping assemblies and the multiple internal support members all extend into the protective cover, and the peripheral side wall of the protective cover is provided with multiple first through-holes and multiple second through-holes arranged at intervals, the multiple first through-holes are respectively arranged corresponding to the multiple clamping assemblies, and the multiple first through-holes are respectively used to allow the multiple clamping assemblies to pass through, the multiple second through-holes are respectively arranged corresponding to the multiple internal support members, and the multiple second through-holes are respectively used to allow the multiple internal support members to pass through.

8. The positioning jig according to claim 7, wherein: The positioning fixture further includes an adsorption component, which is arranged on a side of the protective cover away from the positioning boss, and is used to adsorb and fix the box-type product.

9. The positioning jig according to claim 8, wherein: The adsorption part is provided with an adsorption hole and a plurality of guide grooves connected to the adsorption hole on the side away from the protective cover. The plurality of guide grooves are staggered on the side of the adsorption part away from the protective cover. The adsorption hole is used for allowing negative pressure gas to pass through to adsorb and fix the box-type product. The plurality of guide grooves are used for guiding the negative pressure gas to the adsorption hole.

10. The positioning jig according to claim 1, wherein: The base includes a base body and multiple support members, the multiple support members are arranged at intervals on the base body, and the multiple support members enclose an assembly space, the positioning seat is arranged at one end of the multiple support members away from the base body, the clamping drive member is arranged on the base body and located in the assembly space, and the internal support mechanism is arranged on the base body and a portion of it is located in the assembly space.

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