Assistive tool capable of controlling size consistency for grinding

Abstract

The utility model discloses a grinding assistive device capable of controlling size consistency, which is used for solving the problems of clamping and positioning for processing length sizes of equal-height sleeves on a surface grinding machine, and belongs to the technical field of machining. The positioning device comprises a positioning body, a positioning plate and an adjusting mechanism, the positioning body is made of magnetic materials, the positioning body is an equilateral triangle frame, two adjacent edges of the positioning body are respectively provided with a long groove, the positioning plate penetrates through the two long grooves, and the relative distance between the positioning plate and the positioning body is adjusted through the adjusting mechanism. The utility model mainly provides a good processing scheme for a grinder to process cylindrical equal-height sleeves with different sizes and different models in groups according to the length sizes and large-batch production of the equal-height sleeves with higher requirements on the consistency of the length sizes.

Description

Technical Field

[0001] The utility model belongs to the technical field of machining, and relates to the clamping and positioning of equal-height sleeves during machining on a surface grinder. Specifically, it is a grinding auxiliary tool capable of controlling dimensional consistency. Background Art

[0002] The equal-height sleeves of a certain product have a cylindrical outer shape as Figure 1 shown. The material is 2Cr13. Each set of products contains multiple equal-height sleeves. When assembling the products, it is required that the length dimensions of the equal-height sleeves participating in the assembly in each set be consistent. Therefore, this height dimension needs to be ground on a surface grinder.

[0003] When grinding this equal-height sleeve, due to the relatively long length dimension of the equal-height sleeve, when grinding the two end faces of the equal-height sleeve, a V-shaped iron is required to clamp the equal-height sleeve to grind the two end faces, and only one equal-height sleeve can be ground at a time. When assembling the products, the equal-height sleeves with consistent length dimensions in each set need to be selected for assembly. It can be seen that when using this processing scheme to process equal-height sleeves, the consistency of the length dimensions is poor, the processing efficiency is low, the assembly process is complex, and it cannot meet the mass production requirements. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a grinding auxiliary tool capable of controlling dimensional consistency, which is used to solve the clamping and positioning problems of the length dimensions of equal-height sleeves during machining on a surface grinder. It mainly provides a good processing scheme for the mass production of equal-height sleeves with high requirements for the consistency of length dimensions in the group machining of different sizes and different models of cylindrical equal-height sleeves by grinders.

[0005] The utility model is realized by adopting the following technical scheme:

[0006] A grinding auxiliary tool capable of controlling dimensional consistency includes a positioning body, a positioning plate, and an adjusting mechanism. The positioning body is an equilateral triangle frame with magnetism. A transverse long groove is opened on each of two adjacent sides of the positioning body. The positioning plate passes through the two long grooves, and the relative distance between the positioning plate and the positioning body is adjusted by the adjusting mechanism.

[0007] During application, the adjusting mechanism is used to push the positioning plate to move forward along the two long grooves on the positioning body. When the positioning plate approaches the equal-height sleeve, the distance between the positioning plate and the equal-height sleeve is adjusted through the adjusting mechanism to ensure uniform fastening of the equal-height sleeve, thereby completing the positioning and clamping of the equal-height sleeve by the grinding auxiliary tool.

[0008] Further preferably, the adjusting mechanism includes a floating bolt. A threaded hole is provided on the perpendicular bisector of the side of the positioning body without the long slot. After the floating bolt passes through the threaded hole, its tail is rotatably connected to the positioning plate, enabling the function of screwing the floating bolt to drive the positioning plate to move.

[0009] Further preferably, the length of the floating bolt is not less than the length of the perpendicular bisector of the positioning body, so that the auxiliary tool can still work properly when the number of equal-height sleeves is small.

[0010] Further preferably, a blind hole is provided on one side of the positioning plate. The adjusting mechanism further includes a fastening bolt. An annular groove is designed at the tail of the floating bolt. The annular groove is assembled in the blind hole. The positioning plate is also provided with one or two symmetrically arranged threaded holes that communicate with the blind hole. The fastening bolt passes through the threaded hole and is stuck in the annular groove, enabling the function of moving the floating bolt and the positioning plate forward and backward together.

[0011] Further preferably, the blind hole is located at the central position on one side of the positioning plate.

[0012] Further preferably, chamfers are processed at the outer corners of the positioning body.

[0013] Further preferably, the length of the positioning plate is not less than the side length of the inner side of the positioning body, which can maximize the processing quantity of the auxiliary tool.

[0014] Further preferably, the height of the positioning body is between 1 / 3 and 1 / 2 of the length dimension of the equal-height sleeve.

[0015] Further preferably, the length of the long slot is less than the side length of the inner side of the positioning body.

[0016] Advantages of the present utility model compared with the prior art:

[0017] 1) The processing with a set of equal-height sleeves can fully meet the technical requirements of the product process and better ensure the processing quality of the product.

[0018] 2) The positioning and pressing of the set of equal-height sleeves can be realized, greatly improving the processing efficiency of the product and increasing the product processing efficiency by dozens of times.

[0019] 3) The problems of clamping, positioning, and poor consistency of the length dimension in grinding the two end faces of the cylindrical equal-height sleeve on a surface grinder are solved.

[0020] 4) This processing scheme also provides a better reference processing scheme for the grinding of other similar cylindrical workpieces.

[0021] 5) The grinding processing of non-magnetic cylindrical equal-height sleeves can be carried out. Description of the Drawings

[0022] The accompanying drawings here are incorporated into the specification and form a part of this specification, showing embodiments in line with the present utility model and, together with the specification, are used to explain the principles of the present utility model.

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the accompanying drawings required for use in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those of ordinary skill in the art, other accompanying drawings can also be obtained based on these drawings without creative efforts.

[0024] Figure 1 It shows a schematic diagram of the external shape structure of the equal-height sleeve.

[0025] Figure 2 It shows a schematic working diagram of the present utility model.

[0026] Figure 3 It shows the present utility model Figure 2 in the schematic view from direction A.

[0027] Figure 4 It shows the present utility model Figure 2 in the schematic sectional view taken along line B-B.

[0028] In the figure: 1 - positioning body, 2 - positioning plate, 3 - adjusting mechanism, 4 - long slot, 5 - floating bolt, 6 - fastening bolt, 7 - blind hole, 8 - annular groove, 9 - equal-height sleeve. Detailed implementation manners

[0029] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present utility model, the solutions of the present utility model will be further described below. It should be noted that, without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other.

[0030] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. It should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection" and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific situations.

[0031] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Obviously, the embodiments in the specification are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0032] The specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0033] Embodiment 1: An auxiliary grinding tool capable of controlling dimensional consistency includes a positioning body 1, a positioning plate 2, and an adjusting mechanism 3. The positioning body 1 is an equilateral triangle frame with magnetism, so that equal-height sleeves 9 with and without magnetism can be processed. The equilateral triangle frame can ensure that the outer circles of the adjacent equal-height sleeves 9 are tangent to the positioning body 1, and the connecting line of the tangent points between the outer circles of the equal-height sleeves 9 in the same row is parallel to the positioning plate 2. During the processing of the equal-height sleeves 9, the equal-height sleeves 9 will not move left and right or back and forth. Two sides of the positioning body 1 are each provided with a transverse long groove 4, and the positioning plate 2 passes through the two long grooves 4. The positioning plate 2 adjusts the relative distance from the positioning body 1 through the adjusting mechanism 3.

[0034] The structure that the adjusting mechanism 3 can adopt is as follows: It includes a floating bolt 5. A threaded hole is provided on the perpendicular bisector of the side of the positioning body 1 without the long groove 4. The floating bolt 5 passes through the threaded hole and its tail is rotatably connected to the positioning plate 2. The length of the floating bolt 5 is not less than the length of the perpendicular bisector of the positioning body 1. The floating bolt 5 pushes the positioning plate 2 to move forward along the two long grooves 4 on the positioning body 1 until the equal-height sleeve 9 is fastened, thereby completing the positioning and clamping of the equal-height sleeve 9 by the auxiliary grinding tool. Since the positioning body 1 is an equilateral triangle frame, during the process of pushing the positioning plate 2, the equal-height sleeves 9 automatically shift to achieve uniform distribution. Since the positioning plate 2 can move back and forth, the number of equal-height sleeves 9 placed in the positioning body 1 can be adjusted according to the actual situation, and it can meet the processing of different numbers of grouped equal-height sleeves 9. The outer contour of the equal-height sleeve 9 processed in this embodiment is as Figure 1 shown.

[0035] Based on the first embodiment, there can be a second embodiment. A blind hole 7 is provided on one side of the positioning plate 2. The adjusting mechanism 3 further includes a fastening bolt 6. An annular groove 8 is designed at the tail of the floating bolt 5, and the annular groove 8 is assembled in the blind hole 7. The positioning plate 2 is also provided with one or two symmetrically arranged threaded holes, and the threaded holes communicate with the blind hole 7. The fastening bolt 6 passes through the threaded hole and is stuck in the annular groove 8. In this way, it can be realized that the floating bolt 5 drives the positioning plate 2 to move together. The floating bolt 5 can push the positioning plate 2 forward or pull the positioning plate 2 backward. Preferably, the blind hole 7 is located at the central position on one side of the positioning plate 2, which can improve the stability of the positioning plate 2 during the process of pushing the equal-height sleeve 9 to move. During application, after one end of the equal-height sleeve 9 is processed, when changing to the other end, slightly loosen the floating bolt 5, turn each equal-height sleeve 9 over one by one, and then tighten the floating bolt 5 again so that the equal-height sleeve 9 is pressed and then process the other end of the equal-height sleeve 9. More preferably, after the fastening bolt 6 is installed on the positioning plate 2, its head does not protrude from the surface of the positioning plate 2.

[0036] Based on the first embodiment, there can be a third embodiment. A blind hole 7 is provided on one side of the positioning plate 2. The adjusting mechanism 3 further includes a fastening bolt 6. An annular groove 8 is designed at the tail of the floating bolt 5, and the annular groove 8 is assembled in the blind hole 7. Threaded holes are provided on the thick edges of the positioning plate 2, and the threaded holes communicate with the hole wall of the blind hole 7. The fastening bolt 6 passes through the threaded hole and is stuck in the annular groove 8. In this way, it can be realized that after one end of the equal-height sleeve 9 is processed, instead of loosening the floating bolt 5 alone and turning the equal-height sleeve 9 over as in the second embodiment and then processing the other end of the equal-height sleeve 9, after the fastening bolt 6 is removed, the equal-height sleeve 9 and the positioning body 1 as a whole can be turned over together, then slightly loosen the floating bolt 5 to adsorb the positioning body 1 on the grinding machine platform again, then install the fastening bolt 6 on the positioning plate 2 after turning over, and finally tighten the floating bolt 5 to start processing the other end of the equal-height sleeve 9, saving some time for turning each equal-height sleeve 9 over one by one. More preferably, after the fastening bolt 6 is installed on the positioning plate 2, its head does not protrude from the surface of the positioning plate 2, so that the fastening bolt 6 does not need to be specifically removed when turning the positioning body 1 and the equal-height sleeve 9 as a whole.

[0037] There can also be some embodiments in which chamfers are processed on the outer corners of the positioning body 1.

[0038] There can also be some embodiments in which the length of the positioning plate 2 is not less than the side length of the inner side of the positioning body 1.

[0039] There can also be some embodiments in which the height of the positioning body 1 is between 1 / 3 and 1 / 2 of the length dimension of the equal-height sleeve 9, which can most economically improve the reliability of clamping and positioning the equal-height sleeve 9 during the processing, and within this range, the equal-height sleeve 9 is not easily toppled.

[0040] There can also be some embodiments in which the length of the long groove 4 is less than the side length of the inner side of the positioning body 1.

[0041] The working principle of the auxiliary tool for grinding is as follows: By the attraction between the worktables of a surface grinder, the auxiliary tool for grinding is adsorbed on the worktable of the surface grinder, with one end face of the equal-height sleeve 9 serving as a positioning reference and closely adhering to the worktable, and grinding the other end face of the equal-height sleeve 9, thus solving the clamping and positioning problems of a set of cylindrical equal-height sleeves 9 with relatively high requirements for length dimension consistency, and at the same time ensuring the consistency of the length dimensions of all equal-height sleeves 9 processed at one time.

[0042] The specific steps are as follows:

[0043] 1) First, place the auxiliary tool for grinding on the worktable of the surface grinder, with the end face of the equal-height sleeve 9 to be ground facing upward. At this time, the other end face of the equal-height sleeve 9 can be used for positioning and is placed in the positioning body 1 of the auxiliary tool for grinding in sequence as shown. Figure 2 shown and placed in the positioning body 1 of the auxiliary tool for grinding in sequence.

[0044] 2) Screw the floating bolt 5, and push the positioning plate 2 to move along the long slot 4 on the positioning body 1 towards the equal-height sleeve 9 to be processed. During the process of the equal-height sleeve 9 being pushed by the positioning plate 2, it is floatingly clamped and automatically evenly distributed in the positioning body 1.

[0045] 3) Tap the surface of the equal-height sleeve 9 to be processed to ensure that the positioning surface fits accurately with the worktable. Then screw the floating bolt 5 again, and use the fastening bolt 6 to connect the floating bolt 5 and the positioning plate 2 into a whole. At this time, the floating bolt 5 presses the equal-height sleeve 9 through the positioning plate 2 to prevent it from loosening during the processing.

[0046] 4) After the end face of the equal-height sleeve 9 that is ground first is processed, the floating bolt 5 can be loosened, the positioning plate 2 can be moved, and the equal-height sleeve 9 can be taken out. Each equal-height sleeve 9 is turned 180°, the equal-height sleeve 9 is reinstalled, and the operation steps of 1)-3) are repeated to grind the other end face of the equal-height sleeve 9 to ensure the dimension. ;

[0047] 5) After a set of equal-height sleeves 9 with a certain size are processed, without replacing the auxiliary tool, the auxiliary tool for grinding can be directly used to process another model of equal-height sleeve 9 with a different length, greatly improving the processing efficiency of the product and reducing the processing cost of the equal-height sleeve 9.

[0048] The utility model realizes a grouped positioning and pressing structure for the coaxial sleeves 9 through an auxiliary tool for equilateral triangle grinding, by using the long groove 4 on the positioning body 1 and the positioning plate 2 with a floating bolt 5, so that the outer circle of the coaxial sleeve 9 is tangent to the positioning body 1 and the outer circles of the coaxial sleeves 9 are tangent to each other. Then, by the attraction force of the workbench of the surface grinder, the grinding auxiliary tool and the coaxial sleeve 9 are adsorbed on the workbench of the surface grinder, and length positioning is realized by relying on one end face of the coaxial sleeve 9, solving the problems of clamping, positioning and poor consistency of length dimensions in grinding the two end faces of the cylindrical coaxial sleeve 9 on the surface grinder. The overall structure of the utility model can realize the processing of grouped coaxial sleeves 9, and the processing efficiency is increased by dozens of times.

[0049] The above are only specific embodiments of the utility model, enabling those skilled in the art to understand or implement the utility model. Although the foregoing embodiments have been described in detail, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A grinding tool capable of controlling dimensional consistency, characterized in that: The invention comprises a positioning body (1), a positioning plate (2) and an adjusting mechanism (3); the positioning body (1) is an equilateral triangle frame having magnetism; the positioning body (1) has two sides each provided with a transverse long groove (4); the positioning plate (2) passes through the two long grooves (4); and the relative distance between the positioning plate (2) and the positioning body (1) is adjusted by the adjusting mechanism (3).

2. A grinding tool capable of controlling dimensional consistency according to claim 1, characterized in that: The adjustment mechanism (3) comprises a floating bolt (5). A threaded hole is provided on the mid-vertical line of the side of the positioning body (1) without the long groove (4). The floating bolt (5) passes through the threaded hole and is rotatably connected to the positioning plate (2) at its tail end.

3. A grinding tool capable of controlling dimensional consistency according to claim 2, characterized in that: The length of the floating bolt (5) is not less than the length of the perpendicular line of the positioning body (1).

4. A grinding tool capable of controlling dimensional consistency according to claim 2, characterized in that: A blind hole (7) is provided on one side of the positioning plate (2). The adjustment mechanism (3) further comprises a fastening bolt (6). An annular groove (8) is designed at the tail of the floating bolt (5). The annular groove (8) is assembled in the blind hole (7). The positioning plate (2) further comprises one or two threaded holes symmetrically formed therein. The threaded holes are connected to the blind hole (7). The fastening bolt (6) passes through the threaded hole and is clamped in the annular groove (8).

5. A grinding tool capable of controlling dimensional consistency according to claim 4, characterized in that: The blind hole (7) is located at the center of one side of the positioning plate (2).

6. The grinding tool capable of controlling dimensional consistency according to claim 1, characterized in that: The outer corners of the positioning body (1) are all chamfered.

7. The grinding tool capable of controlling dimensional consistency according to claim 1, characterized in that: The length of the positioning plate (2) is not less than the length of the inner side of the positioning body (1).

8. The grinding tool capable of controlling dimensional consistency according to claim 1, characterized in that: The height of the positioning body (1) is between 1 / 3 and 1 / 2 of the length of the equal height sleeve (9).

9. The grinding tool capable of controlling dimensional consistency according to claim 1, characterized in that: The length of the long groove (4) is smaller than the length of the inner side of the positioning body (1).

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