A compressor cylinder liner grinding tool

Abstract

The utility model relates to a compressor cylinder liner grinding frock, including base, be equipped with positioning mechanism and pressure mechanism on the base, positioning mechanism includes installation fixture bottom plate, is equipped with support surface in the fixture bottom plate, and is equipped with positioning pin group around support surface, support surface is composed of first support surface, second support surface, third support surface, fourth support surface, positioning pin group includes first positioning pin and second positioning pin, and pressure mechanism includes parallel corner oil jar, and parallel corner oil jar piston rod is vertical upward, and installs oil jar clamping plate on parallel corner oil jar piston rod, and installs pressure foot in oil jar clamping plate end part, the utility model novel structure, and the fixture is positioned automatically through two positioning pins, is convenient, reliable, can realize automatic operation, and parallel corner oil jar automatic rotation 90 degrees after downlink pressure tightly work piece, and pressure size is adjustable, fast, convenient, reliable, whether the normality of installation surface is realized whole process monitoring through position sensor airtight detection.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical equipment manufacturing technology, and relates to a grinding fixture for compressor cylinder liners. Background Technology

[0002] Air conditioner compressor (see) Figure 5 The cylinder liner is a key component in the new rotary compressor, and the grooves on it need to be ground to obtain precise dimensions. Traditionally, this is often done by manually clamping the end face using multiple manual pressure plates.

[0003] The disadvantages of the existing processing method are: calibration and manual clamping are required for each loading and unloading. This results in low efficiency and poor precision. Summary of the Invention

[0004] The purpose of this invention is to provide a grinding fixture for compressor cylinder liners that can solve the above-mentioned problems and enable automated operation.

[0005] According to the technical solution provided by this utility model: A compressor cylinder liner grinding fixture includes a base, on which a positioning mechanism and a clamping mechanism are provided; the positioning mechanism includes a mounting fixture base plate, in which a support surface is provided, and a group of positioning pins is provided around the support surface; the support surface is composed of a first support surface, a second support surface, a third support surface, and a fourth support surface; the group of positioning pins includes a first positioning pin and a second positioning pin; the clamping mechanism includes a parallel rotary cylinder, the piston rod of the parallel rotary cylinder is vertically upward, a cylinder clamping plate is installed on the piston rod of the parallel rotary cylinder, and a pressure foot is installed at the end of the cylinder clamping plate.

[0006] As a further improvement of this utility model, a first pin hole is provided on the side of the fourth support surface, and a first positioning pin is installed in the first pin hole. A second pin hole is provided between the first support surface and the second support surface, and a second positioning pin is installed in the second pin hole.

[0007] As a further improvement of this utility model, the first positioning pin is a rhomboid positioning pin, and the second positioning pin is a cylindrical positioning pin.

[0008] As a further improvement of this utility model, a grinding rod clearance hole is provided between the first support surface, the second support surface, the third support surface, and the fourth support surface, and a grinding wheel clearance groove is provided between the third support surface and the fourth support surface.

[0009] As a further improvement of this utility model, the fixture base plate is provided with a first airtightness detection channel and a second airtightness detection channel. The outer ends of the first airtightness detection channel and the second airtightness detection channel are located on both sides of the fixture base plate and connected to digital position sensors. The inner ends of the first airtightness detection channel and the second airtightness detection channel are located on the third support surface and the fourth support surface.

[0010] As a further improvement of this utility model, the fixture base plate is provided with a cylinder mounting groove, and the parallel corner cylinder is located in the cylinder mounting groove and is connected to the base by bolts.

[0011] As a further improvement of this utility model, the upper part of the piston rod of the parallel angle cylinder is tapered, and the cylinder clamping plate is provided with a matching tapered hole. The cylinder clamping plate is sleeved on the upper part of the piston rod of the parallel angle cylinder. The top end of the piston rod of the parallel angle cylinder is provided with an external thread, and a nut is installed on the threaded top end of the piston rod of the parallel angle cylinder. The nut fixes the cylinder clamping plate and the piston rod of the parallel angle cylinder.

[0012] As a further improvement of this utility model, the pressure feet are symmetrically installed at the bottom of the cylinder clamping plate, and a clearance is left between the two pressure feet.

[0013] As a further improvement of this utility model, the base is fixed to the bed frame by mounting screws on the bottom surface.

[0014] The positive and progressive effects of this application are as follows:

[0015] This utility model has a novel structure. The clamp is automatically positioned by two locating pins, which is convenient, reliable, and can realize automated operation. The parallel rotary cylinder automatically rotates 90 degrees and then moves down to clamp the workpiece. The pressure is adjustable, fast, convenient, and reliable. The position sensor detects the airtightness of the mounting surface to realize full-process monitoring. Attached Figure Description

[0016] Figure 1 This is the front view of the present invention.

[0017] Figure 2 This is a top view of the present invention.

[0018] Figure 3 This is a side view of the present invention.

[0019] Figure 4 This is a schematic diagram of the base plate of the fixture of this utility model.

[0020] Figure 5 This is a schematic diagram of the structure of the cylinder liner of this utility model. Detailed Implementation

[0021] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0023] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this utility model described herein. Furthermore, terms such as "comprising" and "having" mean that in addition to those already listed in "comprising" and "having," other unlisted contents may also be included; for example, a process, method, system, product, or device may include a series of steps or units, not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0024] Due to the angle of the drawing, some parts may not be drawn, but their positions and connections can be understood from the text descriptions.

[0025] like Figure 1 As shown, this utility model is a compressor cylinder liner grinding fixture, including a base 1, on which a positioning mechanism and a clamping mechanism are provided.

[0026] The positioning mechanism includes a mounting fixture base plate 2, which has a support surface and a set of positioning pins around its perimeter. The support surface contacts the bottom of the cylinder liner 7, providing support and positioning. Figure 4 As shown, the support surface consists of a first support surface 2-1, a second support surface 2-2, a third support surface 2-3, and a fourth support surface 2-4. Figures 2-3 As shown, the locating pin assembly includes a first locating pin 8 and a second locating pin 9. A first pin hole 2-7 is provided on the side of the fourth support surface 2-4, and the first locating pin 8 is installed in the first pin hole 2-7. A second pin hole is provided between the first support surface 2-1 and the second support surface 2-2, and the second locating pin 9 is installed in the second pin hole. The first locating pin 8 is a rhomboid locating pin, used for auxiliary positioning; the second locating pin 9 is a cylindrical locating pin, used for precision positioning. The positions of the two pin holes coincide with the two φ6.5 mounting holes on the cylinder liner 7.

[0027] A grinding rod clearance hole 2-5 is provided between the first support surface 2-1, the second support surface 2-2, the third support surface 2-3, and the fourth support surface 2-4, and a grinding wheel clearance groove 2-6 is provided between the third support surface 2-3 and the fourth support surface 2-4.

[0028] To ensure that the cylinder liner 7 fits snugly against the third support surface 2-3 and the fourth support surface 2-4, the fixture base plate 2 is provided with a first airtightness detection channel 10 and a second airtightness detection channel 11. The outer ends of the first airtightness detection channel 10 and the second airtightness detection channel 11 are located on both sides of the fixture base plate 2 and connected to digital position sensors. The inner ends of the first airtightness detection channel 10 and the second airtightness detection channel 11 are located on the third support surface 2-3 and the fourth support surface 2-4. After air is supplied, it can detect in real time whether the end face of the cylinder liner 7 is flush with the third support surface 2-3 and the fourth support surface 2-4. Otherwise, an alarm signal for abnormal clamping is issued.

[0029] The clamping mechanism includes a parallel angle cylinder 3, the piston rod of the parallel angle cylinder 3 is vertically upward, the cylinder clamping plate 4 is installed on the piston rod of the parallel angle cylinder 3, and the pressure foot 6 is installed at the end of the cylinder clamping plate 4.

[0030] The fixture base plate 2 is provided with a cylinder mounting groove 2-8, and the parallel corner cylinder 3 is located in the cylinder mounting groove 2-8 and is connected to the base 1 by bolts.

[0031] The upper part of the piston rod of the parallel angle cylinder 3 is tapered, and the cylinder clamping plate 4 is provided with a matching tapered hole. The cylinder clamping plate 4 is sleeved on the upper part of the piston rod of the parallel angle cylinder 3. The top end of the piston rod of the parallel angle cylinder 3 is provided with an external thread, and a nut 5 is installed on the threaded top end of the piston rod of the parallel angle cylinder 3. The nut 5 fixes the cylinder clamping plate 4 and the piston rod of the parallel angle cylinder 3.

[0032] The presser feet 6 are symmetrically installed at the bottom of the cylinder clamping plate 4, and a clearance 13 is left between the two presser feet 6.

[0033] The base 1 is fixed to the bed frame by mounting screws on the bottom surface.

[0034] The digital position sensor is from the SMC brand.

[0035] The working process of this utility model is as follows:

[0036] The cylinder liner 7 is placed on the support surface of the fixture base plate 2. The first locating pin 8 and the second locating pin 9 are inserted into the two locating holes on the cylinder liner 7. The parallel rotary cylinder 3, along with the cylinder clamping plate 4 and the pressure foot 6, rotates 90 degrees counterclockwise and then descends vertically to press the upper end face of the cylinder liner 7. The digital position sensor detects the airtightness of the gap between the cylinder liner 7 and the third support surface 2-3 and the fourth support surface 2-4. After the gap is normal, the machine tool begins processing. The grinding wheel passes through the clearance 13 between the two pressure feet 6 and grinds the groove of the cylinder liner 7.

[0037] The grinding rod clearance hole 2-5 prevents interference between the grinding rod and the tooling, and the grinding wheel clearance groove 2-6 prevents interference between the grinding wheel and the tooling.

[0038] It is understood that the above embodiments are merely exemplary implementations used to illustrate the principles of this utility model, and the utility model is not limited thereto. For those skilled in the art, various modifications and improvements can be made without departing from the spirit and essence of this utility model, and these modifications and improvements are also considered to be within the protection scope of this utility model.

Claims

1. A compressor cylinder liner grinding fixture, comprising a base (1), characterized in that, The base (1) is provided with a positioning mechanism and a clamping mechanism; the positioning mechanism includes a mounting fixture base plate (2), the fixture base plate (2) is provided with a support surface, and a positioning pin group is provided around the support surface; the support surface is composed of a first support surface (2-1), a second support surface (2-2), a third support surface (2-3), and a fourth support surface (2-4); the positioning pin group includes a first positioning pin (8) and a second positioning pin (9); the clamping mechanism includes a parallel angle cylinder (3), the piston rod of the parallel angle cylinder (3) is vertically upward, the cylinder clamping plate (4) is installed on the piston rod of the parallel angle cylinder (3), and the pressure foot (6) is installed at the end of the cylinder clamping plate (4).

2. The compressor cylinder liner grinding fixture as described in claim 1, characterized in that, The fourth support surface (2-4) has a first pin hole (2-7) on its side, and a first positioning pin (8) is installed in the first pin hole (2-7). A second pin hole is provided between the first support surface (2-1) and the second support surface (2-2), and a second positioning pin (9) is installed in the second pin hole.

3. The compressor cylinder liner grinding fixture as described in claim 1, characterized in that, The first locating pin (8) is a rhomboid locating pin, and the second locating pin (9) is a cylindrical locating pin.

4. The compressor cylinder liner grinding fixture as described in claim 1, characterized in that, A grinding rod clearance hole (2-5) is provided between the first support surface (2-1), the second support surface (2-2), the third support surface (2-3), and the fourth support surface (2-4), and a grinding wheel clearance groove (2-6) is provided between the third support surface (2-3) and the fourth support surface (2-4).

5. The compressor cylinder liner grinding fixture as described in claim 1, characterized in that, The fixture base plate (2) is provided with a first airtightness detection channel (10) and a second airtightness detection channel (11). The outer ends of the first airtightness detection channel (10) and the second airtightness detection channel (11) are located on both sides of the fixture base plate (2) and connected to digital position sensors. The inner ends of the first airtightness detection channel (10) and the second airtightness detection channel (11) are located on the third support surface (2-3) and the fourth support surface (2-4).

6. The compressor cylinder liner grinding fixture as described in claim 1, characterized in that, The base plate (2) of the fixture is provided with a cylinder mounting groove (2-8), and the parallel corner cylinder (3) is located in the cylinder mounting groove (2-8) and is connected to the base (1) by bolts.

7. The compressor cylinder liner grinding fixture as described in claim 1, characterized in that, The upper part of the piston rod of the parallel angle cylinder (3) is tapered, and the cylinder clamp (4) is provided with a matching tapered hole. The cylinder clamp (4) is sleeved on the upper part of the piston rod of the parallel angle cylinder (3). The top of the piston rod of the parallel angle cylinder (3) is provided with an external thread. The top of the piston rod of the parallel angle cylinder (3) is threaded with a nut (5). The nut (5) fixes the cylinder clamp (4) and the piston rod of the parallel angle cylinder (3).

8. The compressor cylinder liner grinding fixture as described in claim 1, characterized in that, The presser feet (6) are symmetrically installed at the bottom of the cylinder clamping plate (4), and a clearance (13) is left between the two presser feet (6).

9. The compressor cylinder liner grinding fixture as described in claim 1, characterized in that, The base (1) is fixed to the bed frame by mounting screws on the bottom surface.

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