positioning device

Abstract

This application relates to the field of product positioning technology, specifically providing a positioning device for positioning a workpiece with a through groove to improve positioning accuracy. The positioning device includes: a base; a support assembly disposed on the base and supporting the workpiece; a clamping assembly disposed at a distance from the support assembly on the base and clamping the outer side of the workpiece; and an inner support assembly including a movable member, an inner support drive member, and two inner support members. The movable member is movably disposed on the side of the support assembly away from the base. The cross-sectional area of ​​the movable member in a first direction decreases along the direction from the support assembly to the base. The inner support drive member is disposed on the base and connected to the movable member. The two inner support members are respectively disposed on both sides of the movable member along the first direction and are slidably connected to the support assembly. The inner support drive member drives the movable member to move closer to the base along a second direction perpendicular to the first direction, so that the two inner support members support the groove wall of the through groove of the workpiece under the pushing force of the movable member.

Description

Technical Field

[0001] This utility model relates to the field of product positioning technology, and in particular to a positioning device. Background Technology

[0002] When processing irregularly shaped products (such as VR glasses frames), positioning devices adapted to the shape of the product are typically used for positioning. However, existing positioning devices generally only support the bottom of the irregularly shaped product, resulting in insufficient support and low positioning accuracy, which can easily lead to quality problems in subsequent processing. Utility Model Content

[0003] In view of the above situation, it is necessary to provide a positioning device to improve positioning accuracy.

[0004] This application provides a positioning device for positioning a workpiece with a through groove, the positioning device comprising:

[0005] Base;

[0006] A support assembly is disposed on the base and used to support the workpiece;

[0007] A clamping assembly, spaced apart from the supporting assembly and disposed on the base, is used to clamp the workpiece; and

[0008] An inner support assembly includes a movable member, an inner support drive member, and two inner support members. The movable member is movably disposed on the side of the support assembly away from the base. The cross-sectional area of ​​the movable member in a first direction decreases along the direction from the support assembly to the base. The inner support drive member is disposed on the base and connected to the movable member. The two inner support members are respectively disposed on both sides of the movable member along the first direction and are slidably connected to the support assembly. The inner support drive member drives the movable member to move closer to the base along a second direction perpendicular to the first direction, so that the two inner support members, under the pushing force of the movable member, internally support the groove wall of the through groove of the workpiece.

[0009] In practical use, the aforementioned positioning device first places the workpiece on the support assembly, which then supports the workpiece. Next, the clamping assembly clamps the outer side of the workpiece. Finally, the inner support drive drives the movable part to move towards the base along the second direction, thereby causing the two inner support members to support the wall of the through groove of the workpiece under the pushing force of the movable part. By clamping the outer side of the workpiece with the clamping assembly, while the inner support assembly supports the wall of the through groove of the workpiece, and the support assembly supports the bottom of the workpiece, the positioning device can provide support for the inner and outer sides and the bottom of the workpiece, thereby achieving stable positioning of the workpiece and improving positioning accuracy.

[0010] In some embodiments, the support component further includes:

[0011] A fixing member is disposed on the base and slidably connected to the inner support member;

[0012] A support member, disposed on the side of the fixing member opposite to the base and adapted to the workpiece, the support member being used to support the workpiece; and

[0013] A guide member is provided through the movable member along the second direction and connected to the fixed member to guide the movable member.

[0014] In some embodiments, the inner support member includes:

[0015] An inner support body is slidably disposed on the fixed member. The inner support body has a storage groove on the side facing the movable member. The storage groove is inclined relative to the second direction. The storage grooves of the two inner supports are joined together to form a conical groove. The conical groove is configured to accommodate the movable member.

[0016] A support body is disposed at one end of the storage groove away from the base and is detachably connected to the inner support body. The support body is used to support the movable member to limit the range of motion of the movable member.

[0017] In some embodiments, the inner support body has a sliding groove on the side facing the fixing member, and the support assembly further includes a guide member, which is inserted into the sliding groove and connected to the fixing member. The guide member is used to guide the inner support body to move along a preset trajectory.

[0018] In some embodiments, the fastener has a sliding surface on the side opposite to the base, and the inner support is slidably disposed on the sliding surface.

[0019] In some embodiments, the fixing member has two mounting slots on the side facing the movable member, and the two mounting slots are spaced apart along the first direction;

[0020] The clamping assembly includes two clamping members, two elastic members, and two clamping drive members. The two clamping members are slidably disposed on the fixing member along the first direction and correspond one-to-one with the two inner support members. The two inner support members are located between the two clamping members. Each clamping member has a support groove on its side facing the fixing member, and the support groove communicates with a placement groove. Each elastic member is disposed in a placement groove, and its two ends respectively abut against the groove wall of the placement groove and the groove wall of the corresponding support groove. The clamping drive member is disposed on the side of a clamping member away from the inner support member. The clamping drive member is used to push the clamping member closer to the inner support member so that the clamping member clamps the outer side of the workpiece and compresses the elastic member to the groove wall of the placement groove.

[0021] In some embodiments, the support component further includes:

[0022] A limiting member abuts against the side of the clamping member opposite to the base and is detachably connected to the fixing member. The limiting member is used to limit the movement direction of the clamping member.

[0023] In some embodiments, the clamping member is further provided with a limiting hole, the limiting hole and the abutment groove are spaced apart along the first direction, the limiting hole passes through the clamping member along the second direction, the clamping assembly further includes a limiting member, the limiting member is inserted into the limiting hole along the second direction and is detachably connected to the fixing member, the limiting member is used to limit the movement range of the clamping member.

[0024] In some embodiments, the positioning device further includes:

[0025] Two sets of clamping components are disposed on both sides of the support component along a third direction and are respectively connected to the base. The two sets of clamping components are used to press the workpiece to the support component along the second direction. The first direction, the second direction and the third direction are perpendicular to each other.

[0026] In some embodiments, the clamping assembly includes:

[0027] A clamping drive component is disposed on one side of the support assembly along the third direction and connected to the base;

[0028] A clamping member, connected to the clamping drive member, the clamping member being used to clamp the workpiece under the drive of the clamping drive member; and

[0029] A guide member is disposed at a distance from the clamping drive member on the base. The guide member is inserted into the clamping member to limit the movement direction of the clamping member. Attached Figure Description

[0030] Figure 1 This is a three-dimensional structural diagram of the positioning device provided in the embodiments of this application.

[0031] Figure 2 for Figure 1 The diagram shows a partial cross-sectional view of the positioning device along the II-II direction.

[0032] Figure 3 for Figure 1 The diagram shows an exploded view of the internal support component in the positioning device.

[0033] Figure 4 for Figure 1 The diagram shows a partial cross-sectional view of the positioning device along the IV-IV direction.

[0034] Explanation of main component symbols: Positioning device 100, base 10, support assembly 20, support member 21, fixing member 22, sliding surface 221, placement groove 222, guide member 23, guide member 24, limiting member 25, clamping assembly 30, clamping member 31, abutment groove 311, limiting hole 312, elastic member 32, clamping drive member 33, limiting member 34, inner support assembly 40, movable member 41, inner support drive member 42, inner support member 43, conical groove 431, inner support body 432, storage groove 4321, sliding groove 4322, abutment body 433, pressing assembly 50, pressing drive member 51, pressing member 52, guide member 53. Detailed Implementation

[0035] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein 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 with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0036] In the description of this application, it should be understood that the terms indicating 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 this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, it should be noted that "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. 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 a connection that allows communication between the two components; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0038] The following will describe some embodiments of this application in detail with reference to the accompanying drawings.

[0039] Please see Figure 1 This application provides a positioning device 100, which includes a base 10, a support assembly 20, a clamping assembly 30, and an inner support assembly 40. The positioning device 100 is used to position a workpiece (not shown). The workpiece is an irregularly shaped workpiece with a through groove, such as the frame of VR glasses.

[0040] To facilitate understanding and explanation of the embodiments of this application, a three-dimensional coordinate system is established in some of the accompanying drawings, with the first direction being... Figure 1 The X-axis direction is shown, and the second direction is... Figure 1 The Z-axis direction shown is the third direction. Figure 1 The Y-axis direction, the first direction, the second direction, and the third direction are all perpendicular to each other.

[0041] Please see Figure 1 , Figure 2 and Figure 3 A support assembly 20 is disposed on the base 10 and used to support the workpiece. A clamping assembly 30 is disposed on the base 10 at a distance from the support assembly 20, and is used to clamp the outer side of the workpiece. The inner support assembly 40 includes a movable member 41, an inner support drive member 42, and two inner support members 43. The movable member 41 is movably disposed on the side of the support assembly 20 away from the base 10. The cross-sectional area of ​​the movable member 41 in the X-axis direction decreases along the direction from the support assembly 20 to the base 10. The inner support drive member 42 is disposed on the base 10 and connected to the movable member 41. The two inner support members 43 are respectively disposed on both sides of the movable member 41 in the X-axis direction and are slidably connected to the support assembly 20. The inner support drive member 42 drives the movable member 41 to move closer to the base 10 in the Z-axis direction, so that the two inner support members 43 support the groove wall of the through groove of the workpiece under the pushing of the movable member 41. For example, the inner support drive member 42 can be a cylinder.

[0042] In actual use, the positioning device 100 first places the workpiece on the support assembly 20, which supports the workpiece. Next, the clamping assembly 30 clamps the outer side of the workpiece. Finally, the inner support drive member 42 drives the movable member 41 to move along the second direction towards the base 10, thereby causing the two inner support members 43 to internally support the wall of the through-groove of the workpiece under the pushing force of the movable member 41. By clamping the outer side of the workpiece with the clamping assembly 30, simultaneously supporting the wall of the through-groove of the workpiece with the inner support assembly 40, and with the bottom of the workpiece supported by the support assembly 20, the positioning device 100 can provide support for the inner and outer sides and the bottom of the workpiece, thereby achieving stable positioning of the workpiece and improving positioning accuracy.

[0043] Please see Figure 1 In some embodiments, the support assembly 20 further includes a support member 21, a fixing member 22, and a guide member 23. The fixing member 22 is disposed on the base 10 and slidably connected to the inner support member 43. The support member 21 is disposed on the side of the fixing member 22 away from the base 10 and is adapted to the workpiece, and the support member 21 is used to support the workpiece. The guide member 23 passes through the movable member 41 along the Z-axis direction and is connected to the fixing member 22, and the guide member 23 is used to guide the movable member 41.

[0044] Thus, through the above configuration, the guide member 23 can guide the movable member 41, causing the movable member 41 to move along the Z-axis direction, ensuring that the movable member 41 always moves along the Z-axis direction, so that the movable member 41 stably pushes against the groove wall of the through groove of the two inner support members 43 that support and position the workpiece, thereby improving the positioning stability of the inner support members 43; the support member 21 that is compatible with the workpiece supports the workpiece, thereby supporting the bottom of the workpiece and ensuring that the workpiece is placed stably.

[0045] Please see Figure 1 and Figure 2 In some embodiments, the inner support member 43 includes an inner support body 432 and a supporting body 433. The inner support body 432 is slidably disposed on the fixing member 22, and the inner support body 432 has a receiving groove 4321 on the side facing the movable member 41. The receiving groove 4321 is inclined relative to the Z-axis direction. The receiving grooves 4321 of the two inner support members 43 are joined to form a conical groove 431, which is configured to accommodate the movable member 41. The supporting body 433 is disposed at the end of the receiving groove 4321 away from the base 10 and is detachably connected to the inner support body 432. The supporting body 433 is used to abut the movable member 41 to limit the range of movement of the movable member 41.

[0046] Thus, by setting the specific structure of the inner support member 43, the two receiving slots 4321 are paired to form a conical slot 431, ensuring that the movable member 41 stably drives the inner support body 432 to support the workpiece through the slot wall; in addition, when the inner support drive member 42 drives the movable member 41 to reset, the abutment body 433 can abut against the movable member 41, thereby limiting the range of motion of the movable member 41, preventing the movable member 41 from moving excessively and disengaging from the conical slot 431, and ensuring that the movable member 41 can be repeatedly operated.

[0047] Please see Figure 2 In some embodiments, the inner support body 432 is provided with a sliding groove 4322 on the side facing the fixing member 22, and the support assembly 20 also includes a guide 24, which is inserted into the sliding groove 4322 and connected to the fixing member 22. The guide 24 is used to guide the inner support body 432 to move along a preset trajectory.

[0048] Thus, through the above configuration, the guide 24 is inserted into the sliding groove 4322 to guide the inner support 432 to move along a preset trajectory, preventing the inner support 432 from shifting when it moves close to the groove wall of the through groove of the workpiece, thereby ensuring that the inner support 432 stably supports the workpiece.

[0049] Please see Figure 2 In some embodiments, the fastener 22 has a sliding surface 221 on the side opposite to the base 10, and the inner support 432 is slidably disposed on the sliding surface 221.

[0050] In this embodiment, the groove wall of the through groove of the workpiece has an arc-shaped structure. Thus, by setting the sliding surface 221, the inner support 432 moves along a preset trajectory under the guidance of the sliding surface 221, ensuring that the inner support 432 stably supports the arc-shaped structure on the workpiece and improving the inner support accuracy.

[0051] Please see Figure 1 and Figure 4In some embodiments, the fixing member 22 has two mounting slots 222 on the side facing the movable member 41, and the two mounting slots 222 are spaced apart along the X-axis. The clamping assembly 30 includes two clamping members 31, two elastic members 32, and two clamping drive members 33. The two clamping members 31 are slidably disposed on the fixing member 22 along the X-axis and correspond one-to-one with the two inner support members 43. The two inner support members 43 are located between the two clamping members 31. The clamping member 31 has a support groove 311 on the side facing the fixing member 22, which is connected to a placement groove 222. The elastic member 32 is disposed in the placement groove 222, and its two ends abut against the groove wall of the placement groove 222 and the groove wall of the corresponding support groove 311, respectively. The clamping drive member 33 is disposed on the side of the clamping member 31 away from the inner support member 43. The clamping drive member 33 is used to push the clamping member 31 closer to the inner support member 43 so that the clamping member 31 clamps the outer side of the workpiece and compresses the elastic member 32 to the groove wall of the placement groove 222. For example, the elastic element 32 can be a spring, and the clamping drive element 33 can be a push plate connected to the cylinder.

[0052] Thus, through the above configuration, the clamping drive 33 pushes the clamping member 31 closer to the inner support member 43, so that the clamping member 31 compresses the elastic member 32 to the groove wall of the placement groove 222 by abutting the groove wall of the holding groove 311, so that the clamping member 31 flexibly clamps the outer side of the workpiece, preventing the clamping member 31 from applying excessive clamping force to the workpiece and damaging the workpiece, thereby ensuring the positioning quality of the clamping assembly 30.

[0053] Please see Figure 1 In some embodiments, the support assembly 20 further includes a limiting member 25. The limiting member 25 abuts against the side of the clamping member 31 opposite to the base 10 and is detachably connected to the fixing member 22. The limiting member 25 is used to limit the direction of movement of the clamping member 31.

[0054] Thus, by setting the aforementioned limiting member 25, the limiting member 25 can limit the movement direction of the clamping member 31, preventing the movement direction of the clamping member 31 from deviating, so that the clamping member 31 can stably clamp the workpiece under the limitation of the limiting member 25, thereby improving the clamping accuracy.

[0055] Please see Figure 1 and Figure 4 In some embodiments, the clamping member 31 is further provided with a limiting hole 312, the limiting hole 312 and the abutment groove 311 are spaced apart along the X-axis direction, the limiting hole 312 passes through the clamping member 31 along the Z-axis direction, the clamping assembly 30 also includes a limiting member 34, the limiting member 34 is inserted into the limiting hole 312 along the Z-axis direction and is detachably connected to the fixing member 22, the limiting member 34 is used to limit the movement range of the clamping member 31.

[0056] Thus, through the above-mentioned arrangement, when the clamping member 31 clamps the workpiece or resets, the limiting member 34 abuts against the wall of the limiting hole 312 to limit the range of motion of the clamping member 31, so as to prevent the clamping member 31 from moving excessively when clamping the workpiece and damaging it, or from moving excessively when resetting and disengaging from the fixing member 22.

[0057] Please see Figure 1 In some embodiments, the positioning device 100 further includes two sets of clamping components 50. The two sets of clamping components 50 are disposed on both sides of the support component 20 along the Y-axis direction and are respectively connected to the base 10. The two sets of clamping components 50 are used to press the workpiece to the support component 20 along the Z-axis direction.

[0058] Thus, by setting the above two sets of clamping components 50, the two sets of clamping components 50 respectively press the two ends of the workpiece in the Y-axis direction, avoiding the workpiece from tilting up due to uneven force, so as to fix the workpiece to the support member 21 in the Z-axis direction, thereby achieving stable positioning of the workpiece and improving positioning stability.

[0059] Please continue reading. Figure 1 In some embodiments, the clamping assembly 50 includes a clamping drive 51, a clamping member 52, and a guide 53. The clamping drive 51 is disposed on one side of the support assembly 20 along the Y-axis and connected to the base 10. The clamping member 52 is connected to the clamping drive 51 and is used to clamp the workpiece under the drive of the clamping drive 51. The guide 53 is spaced apart from the clamping drive 51 on the base 10 and is inserted into the clamping member 52 to define the movement direction of the clamping member 52. Exemplarily, the clamping drive 51 can be a rotary telescopic cylinder.

[0060] Thus, by setting the specific structure of the clamping assembly 50, when the clamping drive 51 drives the clamping member 52 to move above the workpiece, the guide 53 is inserted into the clamping member 52 to limit the movement direction of the clamping member 52, ensuring that the clamping drive 51 drives the clamping member 52 to move stably closer to the base 10 along the Z-axis direction, thereby ensuring that the clamping member 52 stably presses the workpiece against the support member 21.

[0061] The working process of the positioning device 100 described above is roughly as follows:

[0062] First, place the workpiece onto the support assembly 20 so that the support 21 supports the workpiece;

[0063] Then, the clamping drive 33 pushes the clamping member 31 closer to the inner support member 43, so that the clamping member 31 compresses the elastic member 32 to the groove wall of the placement groove 222 by abutting the groove wall of the groove 311, so that the clamping member 31 flexibly clamps the outer side of the workpiece.

[0064] Next, the inner support drive member 42 drives the movable member 41 to move closer to the base 10 along the Z-axis direction, so that the two inner support members 43 support the groove wall of the through groove of the workpiece under the pushing of the movable member 41.

[0065] Finally, the clamping drive 51 drives the clamping member 52 to press the workpiece against the support member 21.

[0066] Thus, the positioning device 100 clamps the outer side of the workpiece with the clamping assembly 30, while the inner support assembly 40 supports the groove wall of the through groove of the workpiece, and the bottom of the workpiece is supported by the support assembly 20. The positioning device 100 can provide positioning support for the inner and outer sides and the bottom of the workpiece, thereby achieving stable positioning of the workpiece and improving positioning accuracy.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this application without departing from the spirit and scope of the technical solutions of this application.

Claims

1. A positioning device for positioning a workpiece having a through slot, characterized by, The positioning device includes: Base; A support assembly is disposed on the base and used to support the workpiece; A clamping assembly, spaced apart from the supporting assembly and disposed on the base, is used to clamp the workpiece; and An inner support assembly includes a movable member, an inner support drive member, and two inner support members. The movable member is movably disposed on the side of the support assembly away from the base. The cross-sectional area of ​​the movable member in a first direction decreases along the direction from the support assembly to the base. The inner support drive member is disposed on the base and connected to the movable member. The two inner support members are respectively disposed on both sides of the movable member along the first direction and are slidably connected to the support assembly. The inner support drive member drives the movable member to move closer to the base along a second direction perpendicular to the first direction, so that the two inner support members, under the pushing force of the movable member, internally support the groove wall of the through groove of the workpiece.

2. The positioning device of claim 1, wherein, The support components also include: A fixing member is disposed on the base and slidably connected to the inner support member; A support member, disposed on the side of the fixing member opposite to the base and adapted to the workpiece, the support member being used to support the workpiece; and A guide member is provided through the movable member along the second direction and connected to the fixed member to guide the movable member.

3. The positioning device of claim 2, wherein, The internal support member includes: An inner support body is slidably disposed on the fixed member. The inner support body has a storage groove on the side facing the movable member. The storage groove is inclined relative to the second direction. The storage grooves of the two inner supports are joined together to form a conical groove. The conical groove is configured to accommodate the movable member. A support body is disposed at one end of the storage groove away from the base and is detachably connected to the inner support body. The support body is used to support the movable member to limit the range of motion of the movable member.

4. The positioning device of claim 3, wherein, The inner support body has a sliding groove on the side facing the fixing member. The support assembly also includes a guide member, which is inserted into the sliding groove and connected to the fixing member. The guide member is used to guide the inner support body to move along a preset trajectory.

5. The positioning device of claim 3, wherein, The fastener has a sliding curved surface on the side opposite to the base, and the inner support is slidably disposed on the sliding curved surface.

6. The positioning device of claim 2, wherein, The fixing member has two mounting slots on the side facing the movable member, and the two mounting slots are spaced apart along the first direction; The clamping assembly includes two clamping members, two elastic members, and two clamping drive members. The two clamping members are slidably disposed on the fixing member along the first direction and correspond one-to-one with the two inner support members. The two inner support members are located between the two clamping members. Each clamping member has a support groove on its side facing the fixing member, and the support groove communicates with a placement groove. Each elastic member is disposed in a placement groove, and its two ends respectively abut against the groove wall of the placement groove and the groove wall of the corresponding support groove. The clamping drive member is disposed on the side of a clamping member away from the inner support member. The clamping drive member is used to push the clamping member closer to the inner support member so that the clamping member clamps the outer side of the workpiece and compresses the elastic member to the groove wall of the placement groove.

7. The positioning device of claim 6, wherein, The support components also include: A limiting member abuts against the side of the clamping member opposite to the base and is detachably connected to the fixing member. The limiting member is used to limit the movement direction of the clamping member.

8. The positioning device of claim 6, wherein, The clamping member is further provided with a limiting hole, which is spaced apart from the abutment groove along the first direction. The limiting hole passes through the clamping member along the second direction. The clamping assembly also includes a limiting member, which is inserted into the limiting hole along the second direction and is detachably connected to the fixing member. The limiting member is used to limit the movement range of the clamping member.

9. The positioning device of claim 1, wherein, The positioning device further includes: Two sets of clamping components are disposed on both sides of the support component along a third direction and are respectively connected to the base. The two sets of clamping components are used to press the workpiece to the support component along the second direction. The first direction, the second direction and the third direction are perpendicular to each other.

10. The positioning device of claim 9, wherein, The clamping assembly includes: A clamping drive component is disposed on one side of the support assembly along the third direction and connected to the base; A clamping member, connected to the clamping drive member, the clamping member being used to clamp the workpiece under the drive of the clamping drive member; and A guide member is disposed at a distance from the clamping drive member on the base. The guide member is inserted into the clamping member to limit the movement direction of the clamping member.

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