Positioning jig

Abstract

The utility model belongs to the technical field of prism processing, and discloses a positioning jig. The positioning jig comprises a bottom plate, a supporting assembly and a positioning plate. Wherein an installation area is arranged on the bottom plate, a machining jig is detachably installed on the installation area, and the machining jig is used for fixing a prism to be machined; the supporting assembly is arranged on the base and located on one side of the installation area. The positioning plate is installed on the supporting assembly in an angle-adjustable mode, and the positioning face of the positioning plate is attached to one side face of the prism so as to limit the perpendicularity of the prism. The positioning jig can ensure that the mounting perpendicularity of the prism on the processing jig meets the requirement, so that the mounting efficiency of the prism on the processing jig is improved, and the processing quality and the processing consistency of the prism are improved to a certain extent.

Description

TECHNICAL FIELD

[0001] The utility model relates to prism processing technical field especially relates to a positioning fixture. BACKGROUND

[0002] Prisms are generally fixed on processing fixtures for processing, but due to assembly errors between the processing fixture and the prism, it is difficult to make the perpendicularity of the prism meet the requirements once installed. Therefore, the angle of the prism often needs to be adjusted manually multiple times, which makes the installation efficiency of the prism on the processing fixture low and affects the processing efficiency of the prism. Moreover, the perpendicularity of the prism depends on visual observation, the installation precision is low, the consistency of installation is poor, and the processing quality and processing consistency of the prism are affected.

[0003] Therefore, it is urgent to propose a positioning fixture to solve the above technical problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides a positioning fixture, can guarantee that the perpendicularity of prism on processing fixture installation meets the requirements, both improved the installation efficiency of prism on processing fixture, also improved the processing quality and processing consistency of prism to a certain extent.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] The positioning fixture comprises:

[0007] A bottom plate is provided with an installation area, and a processing fixture for fixing a prism to be processed is detachably installed on the installation area;

[0008] A support assembly is arranged on the bottom plate and located on one side of the installation area;

[0009] A positioning plate is adjustably installed on the support assembly, and a positioning surface of the positioning plate is attached to one side of the prism to limit the perpendicularity of the prism.

[0010] Optionally, the support assembly comprises:

[0011] An angle adjusting assembly comprises a mounting plate connected to the positioning plate and a jackscrew arranged on the mounting plate, the end of the jackscrew abuts against the positioning plate, and the angle of the positioning surface of the positioning plate can be adjusted by adjusting the length of the jackscrew extending out of the mounting plate;

[0012] A position adjusting assembly is arranged on the bottom plate, the position adjusting assembly is provided with the angle adjusting assembly, and the position adjusting assembly drives the positioning plate to move closer to or away from the processing fixture by driving the angle adjusting assembly.

[0013] Optionally, the position adjusting assembly comprises a first sliding block and a second sliding block, the first sliding block is arranged on the bottom plate, one of the first sliding block and the second sliding block is provided with a sliding groove, and the other is provided with a sliding rail, the sliding rail is slidably connected to the sliding groove, and one end of the sliding direction of the second sliding block is provided with the mounting plate.

[0014] Optionally, the position adjusting assembly further comprises a locking member, and the locking member is used for locking and fixing the first sliding block and the second sliding block.

[0015] Optionally, the first sliding block is provided with the sliding groove, the second sliding block is provided with the sliding rail, the first sliding block is provided with a first threaded hole which is in communication with the sliding groove, the locking member is a locking bolt, the locking bolt is threadedly connected to the first threaded hole, and the top of the locking bolt can abut against the sliding rail.

[0016] Optionally, the mounting plate is provided with a second threaded hole at each corner, and one top screw is arranged at each second threaded hole.

[0017] Optionally, the positioning plate is provided with a connecting hole, a fastener is arranged in the connecting hole and connected with the mounting plate, the positioning surface is provided with a convex rib, and the end surface of the convex rib is attached to one side surface of the prism.

[0018] Optionally, the convex rib is provided with two convex ribs, and the two convex ribs are arranged on the two sides of the connecting hole.

[0019] Optionally, the support assembly further comprises:

[0020] a base, the base is arranged on the bottom plate, and the top of the base is provided with the position adjusting assembly;

[0021] a mounting block, the mounting block is arranged on the position adjusting assembly, and one end of the mounting block is provided with the angle adjusting assembly.

[0022] Optionally, the mounting area is provided with a third threaded hole, and a fastening bolt is arranged in the base of the machining jig and connected with the third threaded hole.

[0023] The utility model discloses the beneficial effect that:

[0024] This utility model provides a positioning fixture, including a base plate, a support assembly, and a positioning plate. In use, the fixture is installed on the mounting area of ​​the base plate, and the angle of the positioning plate relative to the support assembly is adjusted to ensure the perpendicularity of the positioning plate meets requirements. Then, the prism to be processed is installed on the fixture with one side attached to the positioning surface of the positioning plate. Because the perpendicularity of the positioning plate meets the requirements, the perpendicularity of the prism attached to the positioning surface of the positioning plate will also meet the requirements. That is, the positioning plate can limit the perpendicularity of the prism installed on the fixture, allowing the prism to meet the perpendicularity requirements with a single installation. On the one hand, this eliminates the need for repeated adjustments to the angle of the prism on the fixture, improving the installation efficiency and processing quality; on the other hand, it ensures the consistency of prism installation on the fixture, thus guaranteeing the consistency of prism processing quality to a certain extent. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0026] Figure 1 This is an assembly drawing of the positioning fixture, prism, and processing fixture provided in this embodiment of the utility model;

[0027] Figure 2 This is a schematic diagram of the positioning fixture from one perspective provided in an embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the positioning fixture from another perspective provided by an embodiment of the present utility model.

[0029] In the picture:

[0030] 10. Machining fixture; 11. Fastening bolt; 20. Prism;

[0031] 100. Base plate; 110. Mounting area; 111. Third threaded hole; 200. Support assembly; 210. Angle adjustment assembly; 211. Mounting plate; 212. Set screw; 220. Position adjustment assembly; 221. First slider; 222. Second slider; 223. Locking element; 230. Base; 240. Mounting block; 300. Positioning plate; 310. Rib; 400. Fastener. Detailed Implementation

[0032] The utility model will be described in further detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are merely used to explain the utility model and not limit the utility model. In addition, it should be noted that only the parts related to the utility model are shown in the drawings for ease of description, not all the structures.

[0033] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0034] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0035] In the description of the embodiment, the terms "upper", "lower", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used to distinguish in description and have no special meaning.

[0036] At present, the prism is generally fixed on the machining jig for machining, but due to the assembly error between the machining jig and the prism, it is difficult to install the prism once to make the perpendicularity of the prism meet the requirements. Therefore, the angle of the prism often needs to be adjusted manually many times, so that the installation efficiency of the prism on the machining jig is low, which affects the processing efficiency of the prism. And the perpendicularity of the prism depends on visual observation, the installation precision is low, and the consistency of installation is poor, which affects the processing quality and processing consistency of the prism.

[0037] To address the aforementioned issues, this embodiment provides a positioning fixture that ensures the perpendicularity of the prism mounted on the processing fixture meets the requirements. This not only improves the installation efficiency of the prism on the processing fixture but also enhances the processing quality and consistency of the prism to a certain extent.

[0038] Specifically, such as Figures 1-3 As shown, the positioning fixture includes a base plate 100, a support assembly 200, and a positioning plate 300. The base plate 100 has a mounting area 110, on which a processing fixture 10 is detachably mounted. The processing fixture 10 is used to fix the prism 20 to be processed. The support assembly 200 is disposed on the base plate 100 and located on one side of the mounting area 110. The positioning plate 300 is angle-adjustably mounted on the support assembly 200, and its positioning surface is attached to one side of the prism 20 to limit the perpendicularity of the prism 20.

[0039] The positioning fixture provided in this embodiment uses the positioning surface of the positioning plate 300 to limit the mounting perpendicularity of the prism 20 to be processed on the processing fixture 10. Therefore, initially, it is necessary to adjust the angle of the positioning plate 300 relative to the support assembly 200 so that the perpendicularity of the positioning surface of the positioning plate 300 is consistent with the perpendicularity requirement of the prism 20 on the processing fixture 10. It is understood that the perpendicularity of the positioning plate 300 can be measured using a perpendicularity measuring instrument.

[0040] To facilitate understanding, a brief introduction to the use of this positioning fixture is provided below:

[0041] First, the machining fixture 10 is installed on the mounting area 110 of the base plate 100;

[0042] Then, adjust the angle of the positioning plate 300 so that the angle between the positioning plate 300 used to define the positioning surface of the prism 20 and the reference on the machining fixture 10 is 90°.

[0043] Finally, the prism 20 to be processed is mounted on the processing fixture 10 with one side attached to the positioning surface.

[0044] Since the perpendicularity of the positioning plate 300 meets the requirements, the installation perpendicularity of the prism 20, which is attached to the positioning surface of the positioning plate 300, will also meet the requirements. That is, the perpendicularity of the prism 20 installed on the processing fixture 10 can be limited by the positioning plate 300, so that the prism 20 can meet the perpendicularity requirements with one installation. On the one hand, there is no need to repeatedly adjust the angle of the prism 20 on the processing fixture 10, which improves the installation efficiency and processing quality of the prism 20 on the processing fixture 10. On the other hand, it can ensure the consistency of the installation of the prism 20 on the processing fixture 10, which can, to a certain extent, ensure the consistency of the processing quality of the prism 20.

[0045] It should be noted that the structure of the machining jig 10 of the prism 20 is prior art and is not within the protection scope of the present application, and thus will not be described in detail.

[0046] Optionally, continuing to refer to Figure 1 and Figure 2 , a third threaded hole 111 can be arranged on the mounting area 110, so that the fastening bolt 11 is arranged through the base of the machining jig 10 and connected with the third threaded hole 111. The machining jig 10 is fixed on the mounting area 110 by means of bolt connection, which is simple in machining and convenient for installation and disassembly.

[0047] In the embodiment, the third threaded hole 111 is arranged at each corner of the mounting area 110, and one fastening bolt 11 is arranged at each third threaded hole 111, and the four fastening bolts 11 are used to fix the four corners of the machining jig 10. In this way, the connection reliability between the machining jig 10 and the bottom plate 100 is improved.

[0048] Further, continuing to refer to Figure 2 and Figure 3 , the support assembly 200 includes an angle adjusting assembly 210 and a position adjusting assembly 220. The angle adjusting assembly 210 is used to adjust the angle of the positioning plate 300, and the position adjusting assembly 220 is used to adjust the position of the positioning plate 300 relative to the machining jig 10. By arranging the position adjusting assembly 220, the positioning jig can be applied to prisms 20 of different sizes, and the universality is higher.

[0049] Optionally, the angle adjusting assembly 210 includes a mounting plate 211 connected with the positioning plate 300 and a jackscrew 212 arranged on the mounting plate 211, and the end of the jackscrew 212 abuts against the positioning plate 300. The angle of the positioning surface of the positioning plate 300 can be adjusted by adjusting the length of the jackscrew 212 extending out of the mounting plate 211. The angle adjusting assembly 210 is simple in structure, and the way of adjusting the angle of the positioning plate 300 is relatively simple.

[0050] Further, continuing to refer to Figure 3 , a second threaded hole can be arranged at each corner of the mounting plate 211, and a jackscrew 212 is arranged at each second threaded hole. By screwing each jackscrew 212 at the four corners of the mounting plate 211, the angle of the positioning plate 300 relative to the mounting plate 211 can be adjusted, and thus the perpendicularity adjustment of the positioning plate 300 is realized. Moreover, arranging four jackscrews 212 is conducive to improving the reliability of the angle adjustment of the positioning plate 300.

[0051] Optionally, continuing to refer to Figure 2The connecting holes can be arranged on the positioning plate 300, the fasteners 400 are arranged in the connecting holes and connected with the mounting plate 211, the positioning surface is provided with the protruding ribs 310, and the end surface of the protruding ribs 310 is attached to one side surface of the prism 20. The connection between the positioning plate 300 and the mounting plate 211 is achieved through the fasteners 400, and the structure is simple and convenient for mounting and dismounting of the positioning plate 300. However, if the head of the fastener 400 is located on the positioning surface, the head of the fastener 400 has a risk of scratching the prism 20. Therefore, the protruding ribs 310 are arranged on the positioning surface, and the perpendicularity of the prism 20 is limited through the protruding ribs 310. On one hand, the head of the fastener 400 is prevented from contacting the prism 20 and scratching the prism 20. On the other hand, the contact area between the positioning plate 300 and the prism 20 is reduced, and the prism 20 is further protected.

[0052] In the embodiment, four connecting holes are arranged, and one fastener 400 is arranged in each connecting hole. In other embodiments, the number of connecting holes can be less than four or more than four, such as two, three, five or the like, which can be arranged according to actual needs, and the application is not limited in this regard.

[0053] Optionally, the fastener 400 can be a fastening screw, but is not limited thereto.

[0054] Further, continuing to refer to Figure 2 Two protruding ribs 310 can be arranged, and the two protruding ribs 310 are arranged on the two sides of the connecting hole. In this way, the prism 20 is prevented from contacting the fastener 400 in the connecting hole, and the stress on the prism 20 is uniform, thereby improving the reliability of the positioning plate 300 in limiting the perpendicularity of the prism 20.

[0055] Further, continuing to refer to Figures 1-3 The support assembly 200 further includes a base 230 and a mounting block 240. The base 230 is arranged on the bottom plate 100, and the top of the base 230 is provided with the position adjusting assembly 220. The mounting block 240 is arranged on the position adjusting assembly 220, and one end of the mounting block 240 is provided with the angle adjusting assembly 210. The base 230 is arranged to limit the height of the position adjusting assembly 220. The mounting block 240 is arranged to connect the position adjusting assembly 220 and the angle adjusting assembly 210, and the structure is simple and convenient for installation.

[0056] In the embodiment, the mounting plate 211 is arranged at one end of the mounting block 240 close to the mounting area 110.

[0057] Optionally, continuing to refer to Figure 2 and Figure 3The position adjusting assembly 220 is arranged on the bottom plate 100, and the angle adjusting assembly 210 is arranged on the position adjusting assembly 220. The position adjusting assembly 220 drives the positioning plate 300 to move close to or away from the machining jig 10 by driving the angle adjusting assembly 210 to move. Specifically, the position adjusting assembly 220 comprises a first sliding block 221 and a second sliding block 222. The first sliding block 221 is arranged on the bottom plate 100. One of the first sliding block 221 and the second sliding block 222 is provided with a sliding groove, and the other is provided with a sliding rail. The sliding rail is slidably connected to the sliding groove. One end of the sliding direction of the second sliding block 222 is provided with a mounting plate 211. The position adjusting assembly 220 can adjust the position of the positioning plate 300 connected with the mounting plate 211 by sliding the second sliding block 222. The adjustment is convenient, and the structure is simple, facilitating assembly and processing.

[0058] Further, continuing to refer to Figures 1-3 The position adjusting assembly 220 further comprises a locking piece 223 for locking and fixing the first sliding block 221 and the second sliding block 222. By arranging the locking piece 223, the position of the second sliding block 222 can be reliably maintained after the position of the second sliding block 222 is adjusted, thereby improving the reliability of the position adjustment of the positioning plate 300.

[0059] Optionally, in the embodiment, the first sliding block 221 is provided with the sliding groove, and the second sliding block 222 is provided with the sliding rail. Further, the first sliding block 221 is provided with a first threaded hole communicating with the sliding groove. The locking piece 223 is a locking bolt, which is threadedly connected to the first threaded hole. The top of the locking bolt can abut against the sliding rail. When it is necessary to adjust the distance between the positioning plate 300 and the machining jig 10, the locking bolt is loosened, and then the second sliding block 222 is driven to slide. When the second sliding block 222 is slid to the required position, the locking bolt is tightened, so that the locking bolt abuts against the sliding rail until the second sliding block 222 cannot move relative to the second sliding block 222 when the second sliding block 222 is pushed. The operation of the locking piece 223 for locking the second sliding block 222 is relatively simple, and the locking reliability is relatively good.

[0060] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, various obvious changes, re-adjustments and replacements can be made without departing from the protection scope of the present application. Here, it is unnecessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A positioning fixture, characterized in that, include: A base plate (100) is provided with an installation area (110), and a processing fixture (10) is detachably installed on the installation area (110). The processing fixture (10) is used to fix the prism (20) to be processed. A support assembly (200) is disposed on the base plate (100) and located on one side of the mounting area (110); A positioning plate (300) is installed at an adjustable angle on the support assembly (200). The positioning surface of the positioning plate (300) is attached to one side of the prism (20) to limit the perpendicularity of the prism (20).

2. The positioning fixture according to claim 1, characterized in that, The support component (200) includes: Angle adjustment assembly (210) includes a mounting plate (211) connected to the positioning plate (300) and a set screw (212) disposed on the mounting plate (211). The end of the set screw (212) abuts against the positioning plate (300). The angle of the positioning surface of the positioning plate (300) can be adjusted by adjusting the length of the set screw (212) extending out of the mounting plate (211). A position adjustment component (220) is disposed on the base plate (100). The position adjustment component (220) is provided with the angle adjustment component (210). The position adjustment component (220) drives the angle adjustment component (210) to move, causing the positioning plate (300) to move closer to or further away from the processing fixture (10).

3. The positioning fixture according to claim 2, characterized in that, The position adjustment assembly (220) includes a first slider (221) and a second slider (222). The first slider (221) is disposed on the base plate (100). One of the first slider (221) and the second slider (222) is provided with a groove, and the other is provided with a slide rail. The slide rail is slidably connected to the groove. The mounting plate (211) is provided at one end of the second slider (222) in the sliding direction.

4. The positioning fixture according to claim 3, characterized in that, The position adjustment assembly (220) further includes a locking member (223) for locking and fixing the first slider (221) and the second slider (222).

5. The positioning fixture according to claim 4, characterized in that, The first slider (221) is provided with the slide groove, the second slider (222) is provided with the slide rail, and the first slider (221) is provided with a first threaded hole communicating with the slide groove. The locking member (223) is a locking bolt, which is threadedly connected to the first threaded hole, and the top of the locking bolt can press against the slide rail.

6. The positioning fixture according to claim 2, characterized in that, The mounting plate (211) is provided with a second threaded hole at each of its four corners, and a set screw (212) is installed at each of the second threaded holes.

7. The positioning fixture according to claim 2, characterized in that, The positioning plate (300) is provided with a connection hole, and the fastener (400) passes through the connection hole and is connected to the mounting plate (211). The positioning surface is provided with a rib (310), and the end face of the rib (310) is attached to one side of the prism (20).

8. The positioning fixture according to claim 7, characterized in that, Two ribs (310) are provided, and the two ribs (310) are respectively provided on both sides of the connecting hole.

9. The positioning fixture according to claim 2, characterized in that, The support assembly (200) also includes: A base (230) is disposed on the base plate (100), and the position adjustment component (220) is provided on the top of the base (230); A mounting block (240) is disposed on the position adjustment component (220), and one end of the mounting block (240) is provided with the angle adjustment component (210).

10. The positioning fixture according to any one of claims 1-9, characterized in that, The mounting area (110) is provided with a third threaded hole (111), and a fastening bolt (11) is inserted through the base of the machining fixture (10) and connected to the third threaded hole (111).

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