Auxiliary device for grinding end face of long cylindrical product

Abstract

The utility model discloses an auxiliary device for grinding the end face of a long cylindrical product. The auxiliary device comprises a planet wheel, a pressing plate and a pressing sleeve, a plurality of uniformly distributed shaft sleeves are arranged on the planet gears and are used for placing long cylindrical workpieces; pressing sleeves are mounted on the pressing plate, and the number of the pressing sleeves is the same as that of the shaft sleeves; the pressing sleeves are divided into positioning pressing sleeves and workpiece pressing sleeves, the two positioning pressing sleeves are symmetrically distributed on the pressing plate, and the other pressing sleeves are all the workpiece pressing sleeves; the positioning pressing sleeves are provided with guide tables, the guide tables of the positioning pressing sleeves are inserted into inner holes in the top ends of the two symmetrically-distributed long cylindrical workpieces respectively, and the workpiece pressing sleeves are pressed on the other long cylindrical workpieces in a one-to-one correspondence mode. A long cylindrical workpiece to be ground is guided and placed in through the shaft sleeve, under the action of the pressing sleeve and the balancing weight, the long cylindrical workpiece is straightly pressed stably, inclination of the workpiece is avoided, the inclination influence is eliminated, the end face grinding stability is good, and the product accurate grinding accuracy is improved.

Description

Technical Field

[0001] This utility model relates to a grinding auxiliary device, and more particularly to a grinding auxiliary device for the end face of a long cylindrical product. Background Technology

[0002] In the field of machining, product processing is not only reflected in equipment; it often requires the design of different tooling fixtures to meet the processing requirements of the product. For example, the finishing of the product end face can be achieved using two methods: fine grinding and fine lapping, to ensure the parallelism, roughness, and perpendicularity of the end face, thereby ensuring sealing performance. Fine grinding using a CNC grinder can only process one product at a time, while fine grinding using an end face grinding machine can process dozens or even hundreds of products at once. When both processes can meet the requirements, fine grinding is preferred to ensure processing efficiency. However, for long cylindrical products, fine grinding can easily cause tilting, and the longer the product, the greater the tilt, which can lead to deviations in the parallelism and perpendicularity of the end face, thus affecting the machining accuracy of the product end face. Utility Model Content

[0003] To address the shortcomings of the aforementioned technologies, this utility model provides an auxiliary device for grinding the end face of long cylindrical products.

[0004] To solve the above technical problems, the technical solution adopted by this utility model is: an auxiliary device for grinding the end face of a long cylindrical product, which includes a planetary gear, a pressure plate and a pressure sleeve;

[0005] The planetary gear is equipped with multiple evenly distributed bushings, which are used to place long cylindrical workpieces.

[0006] Pressure sleeves are installed on the pressure plate, and the number of pressure sleeves is the same as the number of bushings.

[0007] Pressure sleeves are divided into positioning pressure sleeves and workpiece pressure sleeves. There are two positioning pressure sleeves symmetrically distributed on the pressure plate, and the rest of the pressure sleeves are workpiece pressure sleeves.

[0008] The positioning sleeve has a guide platform, which is inserted into the top inner hole of two symmetrically distributed long cylindrical workpieces. The workpiece sleeve is pressed onto the remaining long cylindrical workpieces one by one.

[0009] Preferably, the bushings are evenly spaced along the circumference of the planetary gears.

[0010] Preferably, the outer circle of the elongated cylindrical workpiece matches the inner hole of the bushing.

[0011] Preferably, the planetary gear has teeth evenly distributed on its sidewalls.

[0012] Preferably, both the positioning sleeve and the workpiece sleeve have a stop platform and a baffle.

[0013] Preferably, the positioning pressure sleeve and the workpiece pressure sleeve have a stop plate that passes upward through the pressure plate and is fixedly assembled with a pad by countersunk bolts.

[0014] Preferably, O-rings are fitted on the positioning platen and the workpiece platen respectively; when the positioning platen and the workpiece platen are assembled on the pressure plate, the O-rings are sandwiched between the pressure plate and the baffle.

[0015] Preferably, a counterweight is placed above the center of the pressure plate.

[0016] This utility model discloses an auxiliary device for end face grinding of long cylindrical products. The device uses a bushing to guide the long cylindrical workpiece to be ground, and under the action of the pressure sleeve and the counterweight, the long cylindrical workpiece is positioned and stabilized, avoiding tilting of the workpiece and eliminating the effect of tilting. This results in good end face grinding stability and improves the precision of product grinding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0019] Figure 3 for Figure 1 A schematic diagram of the cross-sectional structure of the positioning pressure sleeve.

[0020] Figure 4 for Figure 1 A schematic diagram of the cross-sectional structure of the pressure sleeve for the workpiece.

[0021] In the diagram: 1. Planetary gear; 2. Bushing; 3. Positioning sleeve; 4. Pressure plate; 5. Counterweight; 6. Pad; 7. O-ring; 8. Workpiece sleeve; 9. Long cylindrical workpiece; 10. Countersunk bolt; 11. Gear tooth; 12. Guide table; 13. Stop table; 14. Baffle. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] This utility model discloses an auxiliary device for grinding the end face of a long cylindrical product, the overall structure of which is as follows: Figure 1 As shown, the main components include planetary gear 1, bushing 2, pressure plate 4, pressure sleeve and counterweight 5.

[0024] Among them, the planetary gear 1 has teeth 11 evenly distributed on its circumferential sidewall. The teeth 11 can mesh with the gear shaft on the grinding machine to realize the rotation of the planetary gear 1.

[0025] At the same time, planetary gear 1 provides the structural basis for the setting of bushing 2, such as Figure 1 and Figure 2 As shown, multiple evenly distributed bushings 2 are mounted on the planetary gear 1, with the bushings 2 spaced at equal intervals along the circumference of the planetary gear 1. One bushing 2 can be used to place a long cylindrical workpiece 9, with the outer circle of the long cylindrical workpiece 9 engaging with the inner hole of the bushing 2, thereby guiding the placement of the long cylindrical workpiece 9 by the bushing 2.

[0026] A long cylindrical workpiece 9 is equipped with a pressure sleeve, so that the number of pressure sleeves is the same as the number of bushings 2; the pressure sleeve is fixedly assembled to the pressure plate 4 by the pad 6 and the countersunk bolt 10.

[0027] For compression sleeves, such as Figure 2 As shown, it consists of a positioning sleeve 3 and a workpiece sleeve 8; it should be noted that, for ease of structural demonstration of the positioning sleeve 3 and workpiece sleeve 8, in Figure 2 The cross-sectional view shown presents both the positioning sleeve 3 and the workpiece sleeve 8 on the same cross-section.

[0028] Among them, the positioning sleeve 3 is used to position and press the pressure plate 4 and the sleeve structure onto the long cylindrical workpiece 9 to be ground; the workpiece sleeve 8 cooperates to press other long cylindrical workpieces 9.

[0029] The cross-sectional structure of the positioning sleeve 3 is as follows Figure 3 As shown, the cross-sectional structure of the workpiece pressure sleeve 8 is as follows: Figure 4 As shown, Figure 3 and Figure 4 It can be seen that both the positioning sleeve 3 and the workpiece sleeve 8 have a stop platform 13 and a baffle 14. The positioning sleeve 3 has a guide platform 12 that extends downward compared to the workpiece sleeve 8. Generally speaking, the positioning sleeve 3 and the workpiece sleeve 8 are integrally formed parts.

[0030] For the positioning pressure sleeve 3, two are symmetrically arranged on the pressure plate 4 to achieve a balanced positioning effect; the remaining pressure sleeves are all workpiece pressure sleeves 8.

[0031] When the pressure plate 4 and the pressure sleeve are placed on the long cylindrical workpiece 9, the guide table 12 of the positioning pressure sleeve 3 is inserted into the top inner hole of the two symmetrically distributed long cylindrical workpieces 9 respectively, and the workpiece pressure sleeve 8 is pressed on the remaining long cylindrical workpieces 9 one by one.

[0032] Finally, a counterweight 5 is placed above the center of the pressure plate 4 to press the long cylindrical workpiece 9.

[0033] Preferably, the positioning sleeve 3 and the workpiece sleeve 8 are fixedly assembled with the stop plate 13, the pad 6, and the countersunk bolts 10. Figure 3 and Figure 4As shown, the stop platform 13 has a threaded hole adapted to the countersunk bolt 10. The stop platform 13 of the positioning sleeve 3 and the workpiece sleeve 8 passes upward through the pressure plate 4 and is fixedly assembled with the assembly pad 6 by the countersunk bolt 10, so as to realize the fixed setting of the sleeve structure on the pressure plate.

[0034] Preferably, before the positioning sleeve 3 and the workpiece sleeve 8 are fixedly assembled onto the pressure plate 4, O-rings 7 are respectively fitted onto the stop platform 13 of the positioning sleeve 3 and the workpiece sleeve 8; when the positioning sleeve 3 and the workpiece sleeve 8 are assembled onto the pressure plate 4, the O-rings 7 are sandwiched between the pressure plate 4 and the stop plate 14. Thus, the flexibility of the O-rings 7 is used to flexibly adjust and correct the pressure plate 4, avoiding displacement and incomplete pressing caused by rigid compression.

[0035] In summary, for the auxiliary device for grinding the end face of the long cylindrical product disclosed in this utility model, during production, the O-ring seals 7 are first fitted onto the positioning pressure sleeve 3 and the workpiece pressure sleeve 8 respectively on the stop platform 13. Then, the positioning pressure sleeves 3 are symmetrically placed in the mounting holes of the pressure plate 4, and the workpiece pressure sleeves 8 are placed one by one in the remaining mounting holes of the pressure plate 4. After that, the pads 6 are installed on the positioning pressure sleeves 3 and the workpiece pressure sleeves 8 one by one with countersunk bolts 10. The pressure plate 4 is installed between the pressure sleeves and the pads to achieve fixed assembly, thereby forming the pressure plate assembly.

[0036] Next, place planetary gear 1 on the grinding disc of the grinding machine, install the bushings 2 one by one onto the planetary gear 1, and then place the long cylindrical workpiece 9 into the bushings 2 in sequence. Figure 2 As shown, the outer circle of the workpiece mates with the inner hole of the bushing; then, the previously assembled pressure plate assembly is placed on the top surface of the long cylindrical workpiece 9, and the guide table 12 on the positioning pressure sleeve 3 is inserted into the top inner hole of the two symmetrically distributed long cylindrical workpieces 9 for positioning. The workpiece pressure sleeve 8 is pressed against the other long cylindrical workpieces 9 one by one.

[0037] After the processing is started, the gears 11 evenly distributed on the planetary gear 1 are driven by the circumferentially distributed gear shaft on the grinding machine to rotate, so as to perform grinding work on the end face of the long cylindrical workpiece 9. After the grinding is completed, the counterweight 5 is removed first, and then the pressure plate assembly is removed together. After replacing the workpiece, the clamping operation is performed as described above, and then the next round of grinding is carried out.

[0038] Therefore, the grinding auxiliary device for the end face of the long cylindrical product disclosed in this utility model is a newly designed assembly structure. It can be used as a grinding auxiliary component for guiding and positioning, and for counterweighting and pressing the workpiece. It can provide positive positioning and stable support for grinding the long cylindrical workpiece, so that the workpiece remains vertical during the grinding process, avoids the workpiece from tilting, ensures the parallelism and position requirements of the grinding end face, and realizes high-precision batch processing to improve production efficiency.

[0039] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. An elongated cylindrical product end face grinding aid device characterized by: It includes planetary gear (1), pressing plate (4) and pressing sleeve; The planetary gear (1) is provided with a plurality of uniformly distributed shaft sleeves (2) for placing long cylindrical workpieces (9); The pressing plate (4) is provided with pressing sleeves, and the number of the pressing sleeves is the same as that of the shaft sleeves (2); The pressing sleeves are divided into positioning pressing sleeves (3) and workpiece pressing sleeves (8), and the two positioning pressing sleeves (3) are symmetrically distributed on the pressing plate (4), and the rest are workpiece pressing sleeves (8); The positioning pressing sleeve (3) has a guide table (12), the guide table (12) of the positioning pressing sleeve (3) is respectively inserted into the top hole of the two symmetrically distributed long cylindrical workpieces (9), and the workpiece pressing sleeve (8) is correspondingly arranged on the rest of the long cylindrical workpieces (9).

2. The long cylindrical product end face polishing aid according to claim 1, characterized in that: The shaft sleeves (2) are distributed at equal intervals along the circumferential direction of the planetary gear (1).

3. The long cylindrical product end face polishing aid device according to claim 1, characterized by: The outer circle of the long cylindrical workpiece (9) is matched with the inner hole of the shaft sleeve (2).

4. The long cylindrical product end face polishing aid apparatus according to claim 1, characterized by: The side wall of the planetary gear (1) is uniformly provided with gear teeth (11).

5. The long cylindrical product end face polishing aid device according to claim 1, characterized by: The positioning pressing sleeve (3) and the workpiece pressing sleeve (8) are both provided with a stop position table (13) and a baffle (14).

6. The long cylindrical product end face polishing aid device according to claim 5, characterized by: The stop position table (13) of the positioning pressing sleeve (3) and the workpiece pressing sleeve (8) passes through the pressing plate (4) upward and is fixedly assembled with a backing plate (6) through a countersunk head bolt (10).

7. The long cylindrical product end face polishing aid apparatus according to claim 5, characterized by: The stop position table (13) of the positioning pressing sleeve (3) and the workpiece pressing sleeve (8) is respectively provided with an O-shaped sealing ring (7); when the positioning pressing sleeve (3) and the workpiece pressing sleeve (8) are assembled on the pressing plate (4), the O-shaped sealing ring (7) is clamped between the pressing plate (4) and the baffle (14).

8. The long cylindrical product end face polishing aid apparatus according to claim 1, characterized by: A counterweight (5) is placed above the center position of the pressing plate (4).

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