Group flat grinding device for bushing parts

Abstract

The utility model provides a group flat grinding device for bushing parts, which comprises a grinding pressing block comprising a mounting blind hole; the rubber gaskets are arranged in the mounting blind holes and are tightly attached to the bottom surfaces of the mounting blind holes, so that the situation that the parts cannot be pressed due to small errors of the total length of the parts is eliminated; and the grinding partition plate comprises a plurality of part positioning holes which are arranged in an array mode, the grinding partition plate is arranged in the mounting blind hole and tightly attached to the top face of the rubber gasket, the grinding partition plate is used for positioning the lining, and the part positioning holes are used for positioning the lining to prevent the liner from toppling over in the flat grinding process. In the flat grinding process, the multiple parts are evenly installed in the array part positioning holes of the grinding partition plate, and the grinding pressing block is grabbed for flat grinding. According to the grouped flat lapping device for the bush type parts, flat lapping of the bush type parts is carried out, the bush flat lapping size precision and form and location tolerance are guaranteed, and the percent of pass and efficiency are greatly improved.

Description

Technical Field

[0001] The present application belongs to the technical field of mechanical processing of overflow valve products, and relates to a group flat grinding device for bushing parts. Background Art

[0002] Since the end face of the bushing of the relief valve needs to be pressed against other parts to form a seal, the parallelism of the bushing end face will affect the contact area with the matching parts of the relief valve, and thus affect the sealing performance of the relief valve. Therefore, it is necessary to ensure the parallelism between the upper end face of the bushing and the lower end face of the step circle. The parallelism requirements are relatively strict and the end face of the bushing is free of defects.

[0003] The traditional method of flat grinding cannot guarantee the shape and position accuracy, the end face of the bushing is prone to tilt, the product consistency is poor, and the qualified rate is low. Utility Model Content

[0004] In view of the above technical problems, the present application provides a group flat grinding device for bushing parts, the flat grinding device comprising:

[0005] The grinding block 1 is a cylinder and includes a mounting blind hole 100;

[0006] A rubber gasket 2, which is arranged in the installation blind hole 100 and is in close contact with the bottom surface of the installation blind hole, thereby eliminating the situation where a plurality of parts cannot be pressed due to a slight error in the total length;

[0007] The grinding baffle 3 is in the shape of a circular plate and includes a plurality of part positioning holes arranged in an array. The grinding baffle 3 is arranged in the mounting blind hole 100 and is tightly attached to the top surface of the rubber gasket. The grinding baffle is used to position the bushing, and the part positioning hole 300 is used to position the bushing to prevent the bushing from tipping over during the flat grinding process.

[0008] Preferably, the grinding baffle 1 is provided with part positioning holes 300 arranged in an array, and the part positioning holes 300 are used to accommodate the bushing and support the outer circle of the bushing, and the plane of the grinding baffle supports the plane of the step circle of the bushing part.

[0009] Preferably, the clearance between the diameter 300 of the part positioning hole and the outer diameter of the small end of the bushing is in the range of 0.01 to 0.04 mm, and the thickness of the grinding partition is 0.1 mm less than the length of the small end of the bushing.

[0010] Preferably, the grinding block 1 is provided with a mounting blind hole, and the depth of the mounting blind hole 100 is determined according to the thickness of the part, the thickness of the grinding partition plate 300 and the thickness of the rubber gasket 200 .

[0011] Preferably, the grinding block 1 and the grinding baffle 3 are made of stainless steel and quenched and hardened to improve their wear resistance and enhance their durability.

[0012] Preferably, the outer diameter of the rubber gasket 2 is 0.5 mm smaller than the blind hole 100 for mounting the grinding block 1, and the outer diameter of the grinding partition 3 is 0.5 mm smaller than the blind hole 100 for mounting the grinding block 1. The advantages of the utility model are: the utility model can effectively improve the end face grinding efficiency of small-sized parts, and effectively avoid the end face tilting problem that is easy to occur during the manual grinding of small batch parts and the wear of the operator's fingers.

[0013] Beneficial technical effects:

[0014] The flat grinding device for bushing parts provided by the utility model is used for flat grinding of small-sized bushings of overflow valves, which ensures the dimensional accuracy and shape and position accuracy of the bushing flat grinding, greatly improves the qualified rate and efficiency, and realizes low-cost and high-efficiency flat grinding of the end faces of small-sized parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front view structure of a group flat grinding device for bushing parts of the utility model;

[0016] Figure 2 It is a cross-sectional structural diagram of a group flat grinding device for bushing parts of the utility model;

[0017] Figure 3 It is a schematic diagram of the front view of the grinding block;

[0018] Figure 4 is a schematic cross-sectional view of a grinding compact;

[0019] Figure 5 is a schematic diagram of a rubber gasket;

[0020] Figure 6 A schematic diagram of a supporting partition;

[0021] Among them: 1. Grinding block; 2. Rubber gasket; 3. Grinding partition. DETAILED DESCRIPTION

[0022] It should be noted that in order to solve the problems of traditional flat grinding methods, which cannot guarantee shape and position accuracy, the end face of the bushing is prone to tilt, poor product consistency and low pass rate, a simple and fast flat grinding device suitable for group processing has been designed to achieve flat grinding of the bushing and avoid the problems of bushing end face tilt, low accuracy and poor consistency.

[0023] See also Figure 1-6 The present application provides a group flat grinding device for bushing parts, which is mainly composed of a grinding block 1, a rubber gasket 2, and a grinding partition 3.

[0024] The rubber gasket 2 is arranged in the installation blind hole 100 and is in close contact with the bottom surface of the installation blind hole, thereby eliminating the situation where a plurality of parts cannot be pressed due to a slight error in the total length.

[0025] The grinding partition 3 is arranged in the installation blind hole 100 and is in close contact with the top surface of the rubber gasket. The grinding partition is used to position the bushing, and the part positioning hole 300 is used to position the bushing to prevent the bushing from tipping over during the flat grinding process.

[0026] Part positioning holes 300 are arranged in an array on the grinding partition 1 to achieve group processing. The part positioning holes 300 are used to accommodate the bushing and support the outer circle of the bushing. The plane of the grinding partition supports the plane of the step circle of the bushing part.

[0027] Among them, the key points of the flat grinding device design are that the gap between the diameter of the part positioning hole 300 and the outer diameter of the small end of the bushing is in the range of 0.01 to 0.04 mm, and the thickness of the grinding partition is 0.1 mm less than the length of the small end of the bushing.

[0028] Among them, the design key point of the flat grinding device is to set a mounting blind hole on the grinding block 1, and the depth of the mounting blind hole 100 is determined according to the thickness of the part, the thickness of the grinding partition 3, and the thickness of the rubber gasket 2.

[0029] The grinding block 1 and the grinding partition plate 3 are made of stainless steel and quenched and hardened to improve their wear resistance and enhance their durability.

[0030] The outer diameter of the rubber gasket 2 is 0.5 mm smaller than the blind hole 100 for mounting the grinding block 1 , and the outer diameter of the grinding partition plate 3 is 0.5 mm smaller than the blind hole 100 for mounting the grinding block 1 .

[0031] Specifically, the use of this device for flat grinding of the small diameter bushing of the overflow valve ensures the dimensional accuracy and parallelism of the bushing end surface, greatly improving the pass rate and efficiency. It provides a new method and new idea for the processing of other similar parts.

[0032] In some embodiments, it can be used for group flat grinding of sheet parts with a thickness of more than 0.6MM, such as jet cover plates, gaskets, etc. The thickness, opening size, shape and arrangement of the grinding partition 3 are designed according to the size of the parts; the depth of the blind hole 100 for installing the grinding block 1 is designed according to the thickness of the grinding partition 3, the thickness of the parts, and the thickness of the rubber gasket to adapt to the flat grinding of different sheet parts.

[0033] The above-mentioned embodiments only express the preferred implementation of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for a person skilled in the art, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be subject to the attached claims.

Claims

1. A group grinding device for bushing parts. It is characterized in that The flat grinding device comprises: a grinding block, a rubber gasket and a grinding partition; The grinding block is a cylinder with a mounting blind hole at one end; The rubber gasket is arranged in the installation blind hole and is in close contact with the bottom surface of the installation blind hole; The grinding partition is in the shape of a circular plate and is provided with a plurality of parts positioning holes. The grinding partition is arranged in the mounting blind hole and is tightly attached to the top surface of the rubber gasket. The grinding partition is used to position the bushing through the parts positioning holes.

2. A group flat grinding device for bushing parts according to claim 1, Features: The part positioning holes on the grinding partition are arranged in an array, and the part positioning holes and the bushings are clearance-matched.

3. A group flat grinding device for bushing parts according to claim 2, It is characterized in that The clearance between the diameter of the part positioning hole and the outer diameter of the small end of the bushing is in the range of 0.01 to 0.04 mm, and the thickness of the grinding partition is 0.1 mm less than the length of the small end of the bushing.

4. A group flat grinding device for bushing parts according to claim 1, It is characterized in that The installation blind hole depth of the grinding pressing block is determined according to the thickness of the bushing, the thickness of the grinding partition plate, and the thickness of the rubber gasket.

5. A group flat grinding device for bushing parts according to claim 1, It is characterized in that The grinding block and grinding separator are made of stainless steel and quenched and hardened.

6. A group flat grinding device for bushing parts according to claim 1, It is characterized in that The outer diameter of the rubber gasket is 0.5 mm smaller than the blind hole for mounting the grinding block, and the outer diameter of the grinding partition is 0.5 mm smaller than the blind hole for mounting the grinding block.

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