CN102284901B - Grinding system for double-ended grinding machine - Google Patents

Abstract

The invention discloses a grinding system of a double-end surface grinding machine, which is characterized in that it comprises a set of rough grinding mechanisms and at least one set of fine grinding mechanisms installed on the machine base, and the rough grinding mechanisms and fine grinding mechanisms are arranged in sequence And corresponding to the position of a certain workpiece fixture on the fixture rotating disk, the rough grinding mechanism and the fine grinding mechanism both include two sets of grinding mechanisms that are set opposite to each other. Rotate both sides of the disc to grind the workpiece on the corresponding position of the fixture rotating disc; the invention has a reasonable structure and is easy to operate, and the rough grinding and fine grinding of the workpiece can be completed at the same time under the condition of one clamping, thus saving The time for multiple clamping of the workpiece, and solve the cumulative error of the workpiece due to multiple clamping.

Description

Grinding system of a double-end grinding machine

technical field

The invention relates to a grinding system, in particular to a grinding system for a double-end grinding machine.

Background technique

As we all know, the compressor is the heart of refrigeration equipment and an essential core component in the production of air conditioners. China is the largest market for air conditioners in the world. It is predicted that the annual sales of air conditioners will be around 35 million units in the future. In the past year, the household air conditioner market has achieved brilliant results, which of course has also led to the continuous prosperity of the air conditioner compressor market. In 2010, the air conditioner compressor companies can be described as busy and happy. Although the production is busy, let the compressor companies rest Hours were drastically reduced and had to work overtime frequently.

As for the key component in the compressor manufacturing industry --- the sliding vane, the sliding vane in the sliding vane compressor must be required to be wear-resistant, high in hardness, high in precision of the substrate, and have strict requirements on external dimensions due to the particularity of the use environment. Here, we first understand the main grinding process of sliding vane grinding:

Step 1: Grind the six planes of the slide with a plane grinder, see the light and reserve a margin of more than 0.02mm on one side of both ends, more than 0.03mm on one side of both sides, and 0.06mm on one side of the two top surfaces above.

Step 2: Use an external cylindrical grinder to carry out the process based on two pairs of front and back sides, and roughly grind the bottom surface of R to reserve 0.06mm allowance.

Step 3: Use a vertical double-end surface grinding machine to grind the two front and back sides to control the size to ±0.001mm, and the parallelism of the two planes to 0.001mm.

Step 4: Use a plane grinder to semi-finish both sides with the front and back sides as the reference, keep the verticality within 0.005mm, and reserve 0.015mm grinding allowance on one side.

Step 5: Use 3894 grinding machine with grinding paste to grind the vertical surfaces on both sides at the same time, remove the traces of the grinding wheel to ensure the smoothness of the two sides, the dimension error is within 0.002mm, and the verticality is within 0.004mm.

Step 6: Use the cylindrical grinding machine to fine-grind the R surface to ensure that the dimensional accuracy is within ±0.02mm based on the front and side of the slide.

Step 7: Use the 3894 grinder again to grind both sides, and the grinding amount is between 0.5um and 1um to deburr.

Process 8: Subsequent deburring, cleaning, inspection, temperature setting, classification and other processes. This subsequent process has little connection with this project and is omitted here.

From the above processes of grinding slides, it can be seen that multiple processes are required to complete the grinding of slides. Among them, there are as many as three processes for grinding the two sides of the slide. The grinding time of both sides greatly restricts the overall production efficiency of the slide. . And after grinding the two sides, the processing of the subsequent process will affect the accuracy of the two measuring surfaces, so the ideal state is to grind the two measuring surfaces at the end, so as to avoid the deformation of the two sides caused by clamping or heating in the subsequent grinding of the slide. Cause repeated grinding or even scrapping of the workpiece.

In addition, the above-mentioned 3894 type grinding machine is a special reciprocating grinding machine, and its working principle is to apply the grinding paste on two abrasive materials with high flatness and parallelism, so that the sliding plate continuously reciprocates between the two parallel abrasive materials. , by pre-pressing it, the grinding paste is used to grind a small amount of the sliding plate. The amount of grinding can only be ground by the operator through a lot of practice. There is no standard grinding amount, so the level of the operator is high. It is not easy to popularize, and the working efficiency of the machine tool is not high. In order to improve the processing quality and efficiency of the sliding vane, reduce the production cost of the sliding vane, improve the working reliability of the compressor vane, and meet the huge demand for the sliding vane in the market, the applicant has developed a high-efficiency double-end grinding machine, which Two parallel end faces with high precision and low surface roughness can be processed in one stroke. The machine tool has a high degree of automation. The machine tool can automatically complete workpiece automatic clamping, automatic positioning, automatic grinding, automatic online detection, automatic correction of grinding errors, Automatic unloading, only need to arrange one operator to complete the operation of more than 10 machine tools, which greatly saves the investment of personnel and reduces human operation errors. The labor cost of slide grinding is greatly reduced, and the qualified rate of products is improved.

In order to cooperate with the implementation of the double-end grinding machine, the applicant has developed a grinding system for the double-end grinding machine.

Contents of the invention

In order to overcome the deficiencies of the prior art, the present invention provides a grinding system for a double-end surface grinding machine. The grinding system has a reasonable structure and is easy to operate, which can save the time for multiple clamping of the workpiece and solve the problem of multiple clamping of the workpiece. The resulting cumulative error.

The technical solution adopted by the present invention to solve its technical problems is:

A grinding system of a double-end grinding machine, characterized in that it includes a set of rough grinding mechanisms and at least one set of fine grinding mechanisms installed on the machine base, the rough grinding mechanisms and fine grinding mechanisms are arranged in sequence and are respectively connected with the fixture Corresponding to the position of a certain workpiece fixture on the rotating disk, the rough grinding mechanism and the fine grinding mechanism both include two sets of grinding mechanisms that are arranged oppositely. side, to grind the workpiece on the corresponding position of the fixture rotating disc.

As a preferred embodiment of the present invention, the grinding mechanism includes a grinding motor and a moving sleeve, the moving sleeve is fixed on the corresponding machine base, the grinding motor is connected with a main shaft, a grinding wheel is installed on one end of the main shaft, and the main shaft is sleeved on a In the main shaft installation sleeve, the main shaft installation sleeve is installed in the motion sleeve and fixedly connected with the grinding motor, and the main shaft installation sleeve can move axially along the motion sleeve.

As an improvement of the above embodiment of the present invention, a feeding mechanism connected to the grinding mechanism is installed on the machine base, the feeding mechanism includes a feeding motor, a screw is connected to the shaft of the feeding motor, and the screw is screwed to the grinding mechanism.

As a further improvement of the above-mentioned embodiment of the present invention, the grinding mechanism is provided with a grinding wheel feeding braking device, which includes a hydraulic chamber arranged in the moving sleeve, and the moving sleeve is provided with a feeder connected to the hydraulic chamber. An oil hole, an oil seal is arranged between the main shaft installation sleeve and the movement sleeve.

The above-mentioned fine grinding mechanism can be arranged in two groups.

The beneficial effects of the present invention are: the present invention is reasonable in structure and easy to operate, and since the workpiece can be roughly ground and finely ground at the same time in the case of one clamping, it can save the time of multiple clamping of the workpiece and solve the problem of workpiece Cumulative error caused by multiple clamping.

Description of drawings

Below in conjunction with accompanying drawing and embodiment the present invention is further described:

Fig. 1 is the three-dimensional schematic diagram of using the double-end grinding machine of the present invention;

Fig. 2 is a three-dimensional schematic diagram of the double-end grinding machine shown in Fig. 1 in another direction;

Fig. 3 is a three-dimensional exploded schematic view of the double-end grinding machine shown in Fig. 1;

Fig. 4 is a three-dimensional schematic diagram of a grinding mechanism;

Fig. 5 is a cross-sectional view of the grinding mechanism.

Detailed ways

Referring to Fig. 1 to Fig. 5, in this embodiment, a grinding system of a double-end surface grinding machine disclosed by the present invention includes a set of rough grinding mechanisms 2 and two sets of fine grinding mechanisms 3 installed on the machine base 1, wherein , the two groups of fine grinding mechanism 3 are divided into a group of semi-finishing mechanism and a group of fine grinding mechanism, coarse grinding mechanism 2, semi-finishing mechanism and fine grinding mechanism are set in sequence and are respectively connected with a certain workpiece fixture on the fixture rotating disk Corresponding to the position, the coarse grinding mechanism 2 and each fine grinding mechanism 3 all include two sets of grinding mechanisms 4 that are set oppositely. Grind the workpiece on the corresponding position of the fixture rotating disc.

As shown in the figure, the grinding mechanism 4 includes a grinding motor 41 and a moving sleeve 42, the moving sleeve 42 is fixed on the corresponding base 1, the grinding motor 41 is connected with a main shaft 43, and one end of the main shaft 43 is equipped with a grinding wheel 44 , the main shaft 43 is set in a main shaft installation sleeve 45, the main shaft installation sleeve 45 is installed in the movement sleeve 42 and fixedly connected with the grinding motor 41, the main shaft installation sleeve 45 can move axially along the movement sleeve 42.

The feed mechanism 5 connected with the grinding mechanism is installed on the base 1, the feed mechanism 5 includes a feed motor 51, the feed motor 51 shaft is connected with a screw 52, and the screw rod 52 is connected to the main shaft installation sleeve of the grind mechanism. 45 threaded connection. When the feed motor is running, the grinding wheel mechanism can be driven forward or backward by the screw to realize the grinding of the workpiece.

As shown in the figure, the grinding mechanism 4 is provided with a grinding wheel feeding brake device, which includes a hydraulic chamber 421 arranged in the moving sleeve 42, and the moving sleeve 42 is provided with a feed feeding brake device communicated with the hydraulic chamber 421. There is an oil seal 46 between the oil hole 422, the main shaft installation sleeve 45 and the movement sleeve 42, the hydraulic chamber 421 is connected with the hydraulic equipment through the oil inlet hole 422, and the main shaft installation sleeve and the movement sleeve are locked when the oil pressure in the hydraulic chamber is high When the oil pressure is low, adjusting the power of the motor can overcome the resistance of the connection between the main shaft installation sleeve and the moving sleeve, so as to drive the main shaft installation sleeve to move axially along the moving sleeve to achieve the purpose of adjusting the feed rate of the grinding wheel .

The invention is reasonable in structure and easy to operate, and because the workpiece can be roughly ground and finely ground at the same time in the case of one clamping, it can save the time for multiple clamping of the workpiece and solve the accumulation of the workpiece due to multiple clamping. error.

The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments, and the present invention can also have other structural changes, such as fine grinding mechanism can be provided with one or more groups, etc. Those skilled in the art can also make various equivalent modifications or replacements without departing from the spirit of the present invention, and these equivalent modifications or replacements are all included within the scope of the claims of the present application.

Claims (4)

1. the grinding system of a dual-end face grinder, it is characterized in that it comprises one group of corase grind mechanism and at least one group of correct grinding mechanism that is installed on the support, described corase grind mechanism and correct grinding mechanism arrange in turn and are corresponding with the position of a certain work piece holder on the anchor clamps rolling disc respectively, described corase grind mechanism and correct grinding mechanism include the grinding mechanism that two covers are oppositely arranged, two cover grinding mechanisms are slidingly mounted on the support and are oppositely arranged on the both sides of anchor clamps rolling disc, so that the workpiece on the anchor clamps rolling disc correspondence position is ground; Grinding mechanism comprises that one grinds motor and motion sleeve, described motion sleeve is fixed on the corresponding support, grind on the motor and be connected with main shaft, one end of main shaft is equipped with emery wheel, spindle set is in a main shaft installation sleeve, this main shaft installation sleeve is arranged in the motion sleeve and with grinding motor and is fixedly connected with, and the main shaft installation sleeve can move axially along the sleeve that moves.

2. the grinding system of a kind of dual-end face grinder according to claim 1, it is characterized in that being equipped with on the support feed mechanism that is connected with grinding mechanism, this feed mechanism comprises a feeding motor, is connected with screw rod on the feeding motor shaft, and this screw rod is threaded with grinding mechanism.

3. the grinding system of a kind of dual-end face grinder according to claim 1, it is characterized in that being provided with on the grinding mechanism grinding wheel feeding brake apparatus, this grinding wheel feeding brake apparatus comprises the hydraulic cavities that is arranged in the motion sleeve, be provided with the fuel feed hole that is communicated with hydraulic cavities on the motion sleeve, be provided with oil sealing between main shaft installation sleeve and the motion sleeve.

4. the grinding system of a kind of dual-end face grinder according to claim 1 is characterized in that described correct grinding mechanism is provided with two groups.

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