Quick positioning device for grinding compressor scroll castings

Abstract

This utility model provides a rapid positioning device for grinding compressor scroll castings, including a base plate, a support column, an upper plate, multiple positioning blocks, and positioning side plates. Radial positioning is achieved through the cooperation of the positioning blocks with the casting's annular groove, while circumferential positioning is achieved through the cooperation of the positioning side plates with the lateral opening slots. This dual positioning structure ensures that the casting will not shift during grinding, guaranteeing the accuracy of robotic grinding. Simultaneously, the positioning structure adapts to the casting's own structure, enabling rapid placement and removal of the casting, significantly improving assembly and disassembly convenience, and further enhancing production efficiency when combined with a robotic grinding system.

Description

Technical Field

[0001] This utility model relates to the field of casting processing technology, specifically a rapid positioning device for grinding compressor scroll castings. Background Technology

[0002] In sand casting, burrs are easily formed at the joints of the mold cores, which generally need to be removed by grinding. Traditionally, this is done manually by workers using grinding tools, which is labor-intensive and has low production efficiency. With the development of intelligent manufacturing in factories, the introduction of robotic grinding systems allows industrial robots to perform grinding operations on castings according to a set program, significantly improving production efficiency. Because factories produce a wide variety of castings, different castings require suitable positioning devices for accurate positioning to ensure precise robot operation. In addition to accurate positioning, the positioning device must also consider the ease of assembling and disassembling the casting on the positioning device to maximize production efficiency. This utility model aims to provide a rapid positioning device for grinding compressor scroll castings. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a quick positioning device for grinding compressor scroll castings.

[0004] To achieve the above objectives, the technical solution adopted by this utility model to solve its technical problem is as follows: the compressor scroll casting includes a main body, the upper surface of the main body is provided with a concave scroll groove extending outward from the center, the outer wall of the main body is provided with a lateral opening groove communicating with the end of the scroll groove, the upper part of the outer wall of the main body is also provided with a plurality of radially outward extending ears, and the lower surface of the main body is provided with a concave annular groove.

[0005] A quick positioning device for grinding compressor scroll castings includes: The base plate has a central positioning hole, and the bottom surface of the base plate is also provided with a concave strip positioning groove, which extends radially outward from the wall of the central positioning hole. A support column, which is vertically and fixedly installed on the base plate; The upper plate is fixedly installed at the top of the support column; Multiple positioning blocks are arranged in a circular array on the upper plate. The outer contours of the multiple positioning blocks match the outer circumferential wall of the annular groove of the compressor scroll casting, and the inner contours of the multiple positioning blocks are larger than the inner circumferential wall of the annular groove. A positioning side plate is vertically fixed to the upper plate, and the positioning side plate is matched with the lateral opening groove of the compressor scroll casting.

[0006] By adopting the technical solution of this utility model, radial positioning is achieved through the cooperation of the positioning block and the annular groove of the casting, and circumferential positioning is achieved through the cooperation of the positioning side plate and the lateral opening groove. The dual positioning structure ensures that the casting will not be displaced during the grinding process, thus guaranteeing the accuracy of robot grinding. At the same time, the positioning structure is adapted to the structure of the casting itself, which can quickly complete the placement and removal of the casting, significantly improving the convenience of disassembly and assembly, and further improving production efficiency in conjunction with the robot grinding system.

[0007] Furthermore, the opening of the inner wall of the strip positioning groove of the base plate is provided with an outwardly flared chamfer.

[0008] By adopting the above-mentioned preferred scheme, the outward expansion bevel forms a guide structure, which can guide the positioning key to quickly insert into the strip positioning groove when the base plate is positioned and connected to the mounting base of the robot grinding system, thereby reducing the difficulty of alignment during positioning and installation.

[0009] Furthermore, there are four positioning blocks.

[0010] Using the above-mentioned preferred scheme, the four positioning blocks are arranged in a circular array, which can form stable support and positioning from four evenly distributed points on the outer ring of the casting. Compared with fewer positioning blocks, the support stability is stronger, which can effectively prevent the casting from tilting due to uneven force during grinding, and further ensure positioning accuracy. At the same time, compared with more positioning blocks, the structural complexity and processing cost are reduced while meeting the positioning requirements.

[0011] Furthermore, the outer contour surface of the positioning block is an arc-shaped surface.

[0012] By adopting the above-mentioned preferred scheme, the arc-shaped surface is completely fitted with the outer circumferential wall of the casting annular groove, which increases the contact area between the positioning block and the casting and improves the stability and accuracy of positioning.

[0013] Furthermore, a guide surface is provided at the upper corner of the outer contour of the positioning block.

[0014] By adopting the above-mentioned preferred scheme, the guide surface plays a guiding role in the placement of the casting, allowing the casting ring groove to slide smoothly into the outer side of the positioning block without precise alignment. This reduces the difficulty of alignment when placing the casting, further improves the convenience of disassembling and assembling the casting, and shortens the auxiliary time of a single processing.

[0015] Furthermore, the positioning block and the upper plate are an integral structure, and the upper plate has a through hole corresponding to the inner side of the positioning block.

[0016] By adopting the above-mentioned preferred solution, the integrated structure eliminates the need for additional positioning blocks, thereby improving the connection strength between the positioning blocks and the upper plate and preventing the positioning blocks from loosening due to grinding vibration. The inner through-hole design can reduce the amount of material used in the upper plate and reduce the overall weight of the device.

[0017] Furthermore, the top two sides of the positioning side plate are provided with arc-shaped guide angles.

[0018] By adopting the above-mentioned preferred solution, the arc-shaped guide angle can guide the side opening slot of the casting to quickly align with the positioning side plate and fit in, avoiding collision between the edge of the opening slot and the top of the positioning side plate during placement. This not only reduces the difficulty of placing the casting, but also protects the edge structure of the casting and the positioning side plate, reducing wear. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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 these drawings without creative effort.

[0020] Figure 1 This is one of the structural schematic diagrams of a compressor scroll casting.

[0021] Figure 2 This is the second schematic diagram of the compressor scroll casting.

[0022] Figure 3 This is a schematic diagram of the positioning device of this utility model.

[0023] Figure 4 This is a schematic diagram of the casting being positioned and installed on the positioning device.

[0024] The numbers and letters in the diagram represent the names of the corresponding components: 10-Compressor scroll casting; 11-Main base; 12-Scroll groove; 13-Side opening groove; 14-Ear; 15-Annular groove; 20-Base plate; 21-Intermediate positioning hole; 22-Strip positioning groove; 221-Cutter angle; 30-Support column; 40-Upper plate; 41-Through hole; 50-Positioning block; 51-Arc-shaped surface; 52-Guide surface; 60-Positioning side plate; 61-Arc-shaped guide angle. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1 , Figure 2As shown, the compressor scroll casting 10 that needs to be polished includes a main body 11. The upper surface of the main body 11 is provided with a concave scroll groove 12 extending outward from the center spiral. The outer wall of the main body 11 is provided with a lateral opening groove 13 communicating with the end of the scroll groove. The upper part of the outer wall of the main body 11 is also provided with a plurality of radially outward extending ears 14. The lower surface of the main body 11 is provided with a concave annular groove 15.

[0027] like Figure 3 , Figure 4 As shown, one embodiment of this utility model is: a quick positioning device for grinding compressor scroll castings, comprising: The base plate 20 has a central positioning hole 21, and the bottom surface of the base plate 20 is also provided with a concave strip positioning groove 22, which extends radially outward from the hole wall of the central positioning hole 21. The support column 30 is vertically fixedly installed on the base plate 20; The upper plate 40 is fixedly installed on the top of the support column 30; Multiple positioning blocks 50 are arranged in a circular array on the upper plate 40. The outer contour of the multiple positioning blocks 50 matches the outer circumferential wall of the annular groove 15 of the compressor scroll casting 10, and the inner contour of the multiple positioning blocks 50 is larger than the inner circumferential wall of the annular groove. The positioning side plate 60 is vertically fixed to the upper plate 40, and the positioning side plate 60 is matched with the lateral opening groove 13 of the compressor scroll casting 10.

[0028] The beneficial effects of adopting the above technical solution are as follows: radial positioning is achieved by the cooperation between the positioning block and the casting annular groove, and circumferential positioning is achieved by the cooperation between the positioning side plate and the lateral opening groove. The dual positioning structure ensures that the casting will not be displaced during the grinding process, thus ensuring the accuracy of robot grinding. At the same time, the positioning structure is adapted to the casting's own structure, which can quickly complete the placement and removal of the casting, significantly improving the convenience of disassembly and assembly, and further improving production efficiency in conjunction with the robot grinding system.

[0029] When batch grinding of the compressor scroll castings described in this application is required, the positioning device is first installed on the mounting base of the robotic grinding system. The mounting base of the robotic grinding system is equipped with a positioning sleeve that mates with the central positioning hole on the base plate and a positioning key that mates with the strip positioning groove on the base plate. The base plate can be locked to the mounting base of the robotic grinding system with bolts, or it can be locked with pneumatic or electric tensioning jaws. Then, each compressor scroll casting to be ground is installed on the positioning device. The specific structure of the robotic grinding system will not be described in this application, but can be obtained from existing technology, such as the KINMAC-AS50 robotic grinding system manufactured by Dalian Yuyang Industrial Intelligent Co., Ltd. The core configuration of the robotic grinding system generally includes an industrial robot and an end effector (grinding wheel), equipped with a force control sensor. The working path of the end effector is preset by programming to grind the castings.

[0030] like Figure 3 As shown, in some other embodiments of this utility model, the opening of the inner wall of the strip positioning groove 22 of the base plate is provided with an outwardly expanding chamfer 221. The beneficial effect of adopting the above technical solution is that the outwardly expanding chamfer forms a guiding structure, which can guide the positioning key to be quickly inserted into the strip positioning groove when the base plate is positioned and connected to the mounting base of the robot grinding system, reducing the difficulty of alignment during positioning and installation.

[0031] like Figure 3 As shown, in some other embodiments of this utility model, there are four positioning blocks 50. The beneficial effects of adopting the above technical solution are: the four positioning blocks are distributed in a circumferential array, which can form stable support and positioning from four evenly distributed points on the outer ring of the casting groove. Compared with fewer positioning blocks, the support stability is stronger, which can effectively prevent the casting from tilting due to uneven force during grinding, and further ensure positioning accuracy; at the same time, compared with more positioning blocks, the structural complexity and processing cost are reduced while meeting the positioning requirements.

[0032] like Figure 3 As shown, in some other embodiments of this utility model, the outer contour surface of the positioning block 50 is an arc-shaped surface 51, and the contour formed by the arc-shaped surface 51 in the horizontal cross-section is arc-shaped. The beneficial effect of adopting the above technical solution is that the arc-shaped surface is completely fitted with the outer circumferential wall of the casting annular groove, which increases the contact area between the positioning block and the casting, and improves the stability and accuracy of positioning.

[0033] like Figure 3As shown, in some other embodiments of this utility model, a guide surface 52 is provided at the upper corner of the outer contour of the positioning block 50. The beneficial effects of adopting the above technical solution are: the guide surface plays a guiding role in the placement of the casting, allowing the casting annular groove to slide smoothly into the outer side of the positioning block without precise alignment, reducing the alignment difficulty when placing the casting, further improving the convenience of casting assembly and disassembly, and shortening the auxiliary time of a single processing.

[0034] like Figure 3 As shown, in some other embodiments of this utility model, the positioning block 50 and the upper plate 40 are an integral structure, and the upper plate 40 has a through hole 41 corresponding to the inner side of the positioning block. The beneficial effects of adopting the above technical solution are: the integral structure eliminates the need for additional positioning block assembly, improves the connection strength between the positioning block and the upper plate, and avoids the positioning block from loosening due to grinding vibration; the inner through hole design can reduce the amount of material used in the upper plate and reduce the overall weight of the device.

[0035] like Figure 3 As shown, in some other embodiments of this utility model, the top two sides of the positioning side plate 60 are provided with arc-shaped guide angles 61. The beneficial effect of adopting the above technical solution is that the arc-shaped guide angles can guide the lateral opening slot of the casting to quickly align with the positioning side plate and fit in, avoiding the edge of the opening slot from colliding with the top of the positioning side plate during placement. This reduces the difficulty of placing the casting and protects the edge structure of the casting and the positioning side plate, reducing wear.

[0036] The above embodiments are only for illustrating the technical concept and features of this utility model. Their purpose is to enable those skilled in the art to understand the content of this utility model and implement it. They should not be used to limit the protection scope of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A quick positioning device for polishing compressor scroll casting, characterized in that, The compressor scroll casting includes a main body, the upper surface of which is provided with a concave scroll groove extending outward from the center, the outer wall of which is provided with a lateral opening groove communicating with the end of the scroll groove, the upper part of the outer wall of which is also provided with a plurality of radially outwardly extending ears, and the lower surface of which is provided with a concave annular groove. The positioning device includes: The base plate has a central positioning hole, and the bottom surface of the base plate is also provided with a concave strip positioning groove, which extends radially outward from the wall of the central positioning hole. A support column, which is vertically and fixedly installed on the base plate; The upper plate is fixedly installed at the top of the support column; Multiple positioning blocks are arranged in a circular array on the upper plate. The outer contours of the multiple positioning blocks match the outer circumferential wall of the annular groove of the compressor scroll casting, and the inner contours of the multiple positioning blocks are larger than the inner circumferential wall of the annular groove. A positioning side plate is vertically fixed to the upper plate, and the positioning side plate is matched with the lateral opening groove of the compressor scroll casting.

2. The quick positioning device for polishing compressor scroll casting according to claim 1, characterized in that, The opening of the inner wall of the strip positioning groove of the base plate is provided with an outwardly flared bevel.

3. The quick positioning device for polishing compressor scroll casting according to claim 1, wherein There are four positioning blocks.

4. The quick positioning device for polishing compressor scroll casting according to claim 3, wherein The outer contour surface of the positioning block is an arc surface.

5. The quick positioning device for polishing compressor scroll casting according to claim 4, wherein The positioning block has a guide surface at the upper corner of its outer contour.

6. The quick positioning device for polishing compressor scroll casting according to claim 5, wherein The positioning block and the upper plate are an integral structure, and the upper plate has a through hole corresponding to the inner side of the positioning block.

7. The quick positioning device for polishing compressor scroll casting according to claim 1, wherein The top two sides of the positioning side plate are provided with arc-shaped guide angles.

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