Fine machining tool for bench worker competition

Abstract

The utility model relates to the technical field of machining, in particular to a bench worker competition finish machining tool which comprises a platform. The reference block is vertically arranged on the platform; two mounting holes, a plurality of first connecting holes and a plurality of second connecting holes are formed in the reference block; the pressing mechanism is arranged on the reference block and is used for fixing a workpiece on the reference block; the machining accessory set is used for adjusting the height and / or angle of the workpiece so as to ensure the machining precision of the workpiece; and the height gauge assembly is arranged on the platform and is used for measuring the height of the workpiece and the precision of the machined surface of the workpiece. The tool has the advantages that the tool has a detection function at the same time, is particularly suitable for bench worker competition occasions, and can save time and improve machining precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field especially relates to a bench worker competition finish machining frock. BACKGROUND

[0002] When the bench worker competition, the contestant needs to complete all the parts processing in 5 to 6 hours.In the processing, the processing of each face needs to consider the angle accuracy and size accuracy of two directions precisely.When needing to ensure the right angle relationship finish machining after completing rough machining, the contestant must use the square ruler to measure the perpendicularity of two directions constantly, and also needs to consider the control of size tolerance.If the workpiece contains specific angle, then also needs to use the universal angle ruler or sine rule to carry out accurate measurement and adjustment.Such processing requirement not only increases the difficulty of ensuring the processing accuracy, but also further intensifies the nervousness of competition time because of the time needed for measurement. SUMMARY

[0003] Therefore, the utility model aims at providing a bench worker competition finish machining frock, which is used for processing frock with finish machining and detection during the competition, can save time and improve processing accuracy.

[0004] To achieve the above purpose, the technical scheme of the utility model is as follows: a bench worker competition finish machining frock, comprising: a platform; a reference block, which is vertically arranged on the platform; the reference block is provided with two mounting holes, a plurality of first connecting holes and a plurality of second connecting holes; a pressing mechanism, which is arranged on the reference block and is used for fixing the workpiece on the reference block; a processing auxiliary component group, which is used for adjusting the height and / or angle of the workpiece to ensure the processing accuracy of the workpiece; a height ruler assembly, which is arranged on the platform and is used for measuring the height of the workpiece and the accuracy of the processing surface.

[0005] Further, the two mounting holes, the plurality of first connecting holes and the plurality of second connecting holes are arranged on three mutually perpendicular surfaces of the reference block respectively; wherein the mounting hole is arranged through the top surface of the reference block, and the plurality of first connecting holes are arranged through the front surface of the reference block; and the plurality of second connecting holes are arranged on the side surface of the reference block.

[0006] Further, the pressing mechanism comprises a screw, a pressing plate and a backing plate; the backing plate is arranged between the pressing plate and the reference block and is used for supporting the backing plate; the screw is connected with the reference block through the first connecting hole, and the pressing plate is pressed against the workpiece through the screw.

[0007] Further, the first connecting hole is a threaded hole.

[0008] Further, the processing auxiliary component set comprises a vertical stop block, at least one angle block and at least one parallel pad; wherein the angle block is used alone or in combination with the parallel pad; the vertical stop block is used in combination with the parallel pad.

[0009] Further, when the angle block is used alone, the angle block is arranged on the reference block and abuts against the workpiece to realize angle positioning of the workpiece; when the angle block is used in combination with the parallel pad, the parallel pad and the angle block are arranged on the reference block respectively, the parallel pad is used to adjust the height of the workpiece, and the angle block is used to realize angle positioning of the workpiece.

[0010] Further, when the vertical stop block is used in combination with the parallel pad, the vertical stop block is connected with the reference block through the second connecting hole, the parallel pad is arranged on the reference block, and the vertical stop block and the parallel pad are perpendicular to each other, and two mutually perpendicular faces of the workpiece abut against the vertical stop block and the parallel pad respectively.

[0011] Further, the height scale assembly comprises a height scale and a lever table, the lever table is connected with the height scale, and the lever table is used to detect the precision of the machining surface of the workpiece.

[0012] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0013] 1) The utility model provides a bench worker competition finish machining tool, and the tool has a detection function simultaneously, is especially suitable for bench worker competition occasions, can save time and guarantees machining precision.

[0014] 2) The processing auxiliary component set comprises a vertical stop block, a plurality of angle blocks and a plurality of parallel pads, these auxiliary components can be used independently or in combination with each other to meet the machining requirements of workpieces of different shapes in the aspects of dimensional tolerance and geometric tolerance.

[0015] 3) The machining tool of the utility model is flexible to use and convenient and fast to finish machining. DRAWINGS

[0016] The drawings constituting a part of the utility model are used to provide further understanding of the utility model, and the illustrative embodiment of the utility model and the explanation thereof are used to explain the utility model and do not constitute improper limitation on the utility model.

[0017] Fig. 1 It is a schematic view of machining the third machining surface of the workpiece with the cross section being hexagonal using the bench worker competition finish machining tool provided by the utility model embodiment;

[0018] Fig. 2 It is a schematic view of machining the fifth machining surface of the workpiece with the cross section being hexagonal using the bench worker competition finish machining tool provided by the utility model embodiment;

[0019] Fig. 3 is a schematic diagram of machining a cuboid workpiece using the finish machining tool for bench work competition provided by the embodiment of the utility model;

[0020] Fig. 4 is a structural schematic diagram of the reference block provided by the embodiment of the utility model.

[0021] The reference signs include: 1, platform; 2, reference block; 21, mounting hole; 22, first connecting hole; 23, second connecting hole; 24, positioning hole; 3, pressing mechanism; 31, screw; 32, pressing plate; 33, backing plate; 4, height gauge assembly; 41, height gauge; 42, lever table; 5, vertical stop block; 6, angle block; 7, parallel backing block; 8, workpiece. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear and intelligible, the utility model will be further described in detail below in combination with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model, and do not constitute a limitation on the utility model.

[0023] It should be noted that the embodiments in the utility model and the features in the embodiments can be combined with each other without conflict.

[0024] In the description of the utility model, it should be understood that the orientation or position relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0025] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "installation", "connection" should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication.For ordinary skilled in the art, the above-mentioned terms can be understood by the specific meaning in the utility model through specific circumstances.

[0026] The utility model will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] As Figs. 1 to 4 The utility model discloses an bench worker competition finish machining frock, including: platform 1, reference block 2, compression mechanism 3, height ruler subassembly 4 and processing auxiliary spare group.Reference block 2 is vertically set up on platform 1.Compression mechanism 3 is set up on reference block 2, for fixing workpiece 8 on reference block 2.Processing auxiliary spare group is adapted to workpiece 8, for adjusting the height and / or angle of workpiece 8, to ensure the machining accuracy of workpiece 8.Height ruler subassembly 4 is set up on platform 1, for measuring the height of workpiece 8 and the accuracy of its machining surface.

[0028] The face of reference block 2 away from platform 1 is defined as the top face, the face of reference block 2 facing workpiece 8 is defined as the front face, and the faces perpendicular to the top face and the front face are defined as the side faces of reference block 2.

[0029] Reference block 2 is provided with two mounting holes 21, a plurality of first connecting holes 22 and a plurality of second connecting holes 23.The two mounting holes 21, the plurality of first connecting holes 22 and the plurality of second connecting holes 23 are respectively arranged on the three mutually perpendicular faces of the reference block 2.The mounting hole 21 is arranged through the top face of the reference block 2, and the reference block 2 is fixed on the platform 1 by a bolt passing through the mounting hole 21.The plurality of first connecting holes 22 are arranged through the front face of the reference block 2, and the plurality of second connecting holes 23 are arranged on the side faces of the reference block.The plurality of second connecting holes 23 can be arranged on two side faces of the reference block 2, or on one side face.

[0030] The plurality of first connecting holes 22 arranged on the reference block 2 provide great flexibility and adaptability for the connection of the compression mechanism 3 and the reference block 2.When the position of the compression mechanism 3 needs to be adjusted, the connection of the compression mechanism 3 and the reference block 2 can be realized by selecting different first connecting holes 22.

[0031] Further, the first connecting hole 22 is a threaded hole.In other embodiments, the first connecting hole 22 is a light hole.

[0032] In the embodiment, the reference block 2 is further provided with a positioning hole 24, and a positioning column is connected with the positioning hole 24 and the workpiece 8 to fix the workpiece 8 on the reference block 2 to realize positioning. Then the workpiece 8 is pressed by the pressing mechanism 3.

[0033] The pressing mechanism 3 includes a screw 31, a pressing plate 32 and a plurality of shims 33. The thicknesses of the shims 33 are different, and one or more shims 33 are arranged between the pressing plate 32 and the reference block 2 to support the pressing plate 32, and the thicknesses of the one or more shims 33 are equal to the thickness of the workpiece 8. The pressing plate 32 is provided with an elongated hole penetrating through, the screw 31 penetrates through the elongated hole and is connected with the reference block 2 through the first connecting hole 22, and the workpiece 8 is pressed by the pressing plate 32 by adjusting the screw 31.

[0034] The machining auxiliary component set includes a vertical stop block 5, a plurality of angle blocks 6 and a plurality of parallel shims 7. The angle blocks 6 are used alone or in combination with the parallel shims 7. The vertical stop block 5 is used in combination with the parallel shims 7. In the embodiment, the angle blocks 6 are triangular blocks, and the angles of the three corners of each angle block 6 are not equal to the angles of any two corners of any other angle block 6. For example, the angles of the three corners of the angle blocks 6 are 90°, 60° and 30° respectively, 90°, 45° and 45° respectively, 60°, 60° and 60° respectively, and the like, which are not listed one by one here. The vertical stop block 5 and the parallel shims 7 are rectangular blocks. In other embodiments, the cross-sectional shape of the angle block 6 is an n-sided polygon, where n>3.

[0035] Further, when the cross section of the workpiece 8 is a hexagon, the workpiece 8 is pressed on the reference block 2 by the pressing mechanism 3, if the face to be machined of the workpiece 8 is parallel to the top surface of the reference block 2 and is located higher than the top surface of the reference block 2, then the angle block 6 in the machining auxiliary component set is used alone. At this time, the face of the angle block 6 which is adapted to the reference surface of the workpiece 8 is attached to the reference surface of the workpiece 8 to realize angle positioning of the workpiece 8. If the face to be machined of the workpiece 8 is parallel to the top surface of the reference block 2 and is located lower than the top surface of the reference block 2, and the workpiece 8 is pressed on the reference block 2 by the pressing mechanism 3, and the position of the face to be machined is lower than the top surface of the reference block 2, then the parallel shim 7 and the angle block 6 in the machining auxiliary component set are used in combination, and the parallel shim 7 and the angle block 6 are arranged on the reference block 2 respectively. The parallel shim 7 is used to adjust the height of the workpiece 8, and the face of the angle block 6 which is adapted to the reference surface of the workpiece 8 is attached to the reference surface of the workpiece 8 to realize angle positioning of the workpiece 8.

[0036] When the workpiece 8 is a cuboid, the vertical stopper 5 in the machining auxiliary component group is used in combination with the parallel pad 7. The workpiece 8 is pressed on the reference block 2 by the pressing mechanism 3, the vertical stopper 5 is connected with the reference block 2 through the second connecting hole 23, and the vertical stopper 5 is ensured to be in close contact with the reference surface of the workpiece 8. At the same time, the parallel pad 7 is arranged on the reference block 2, and the vertical stopper 5 and the parallel pad 7 are perpendicular to each other. At this time, a surface of the workpiece 8 which is perpendicular to the reference surface of the workpiece 8 is in close contact with the parallel pad 7.

[0037] The height gauge assembly 4 includes a height gauge 41 and a lever gauge 42 connected with the height gauge 41, and the lever gauge 42 is used to detect the precision of the machining surface of the workpiece 8. The height gauge 41 is arranged on the platform 12.

[0038] A benchwork competition finishing method, which utilizes the above-mentioned benchwork competition finishing tool and is realized by cooperating with a bench vice, and includes the following steps.

[0039] S1: The workpiece 8 is fixed on the bench vice, and a machining surface is selected to be subjected to filing to reach the precision requirement, and the machining surface is taken as the reference surface of the workpiece 8.

[0040] S2: The reference block 2 is fixed on the platform 1, and the machining auxiliary component group cooperates with the pressing mechanism 3 to press the workpiece 8 on the reference block 2.

[0041] S3: The benchworker first uses the height gauge assembly 4 to detect the precision of the machining surface of the workpiece 8 which needs to be finished, and the benchworker obtains the removal amount of the machining surface according to the detected precision of the machining surface. Subsequently, the benchworker uses the filing technology to finish the machining surface of the workpiece 8 according to the removal amount.

[0042] S4: After the machining is completed, the precision of the machining surface is detected by using the height gauge assembly 4. If the precision of the machining surface is unqualified, the machining is re-performed until the detection by the height gauge assembly 4 is qualified.

[0043] S5: When the machining surface is detected to be qualified, the position of the workpiece 8 is changed, and another machining surface of the workpiece 8 which needs to be machined is determined again, and the steps S2-S4 are repeated until the machining of all the machining surfaces of the workpiece 8 is completed.

[0044] The utility model discloses a fitter competition finish machining tool mainly is suitable for the fine machining of small workpiece after rough machining. When the cross section of workpiece 8 is n (n is greater than or equal to 3) polygon, the maximum diameter of its circumscribed circle is 65mm, and its maximum thickness is 10mm. It needs to be explained that when the cross section of workpiece 8 is rectangle, the longest side size is not more than 100mm. The accuracy of the machining surface of workpiece 8 is less than or equal to 0.01mm. The accuracy of the machining surface of workpiece 8 refers to the dimensional tolerance and geometric tolerance of workpiece 8. At the same time, the accuracy (i.e. dimensional tolerance and geometric tolerance) of reference block 2, pressing plate 32, vertical stopper 5, angle block 6 and parallel pad 7 is less than or equal to 3 microns.

[0045] The utility model provides the use fitter competition finish machining tool to carry out finish machining is explained below in conjunction with two specific embodiments.

[0046] Embodiment one:

[0047] The cross section of workpiece 8 is regular hexagon, and the face of the six edges is defined as first machining surface, second machining surface, third machining surface, fourth machining surface, fifth machining surface and sixth machining surface in turn. First, workpiece 8 is fixed on the bench vice, and the first machining surface is selected to be filed and processed until the set accuracy requirement is reached. The first machining surface that reaches the accuracy requirement after filing is defined as the reference surface of workpiece 8.

[0048] Then, the positioning column is passed through the positioning column hole at the center of workpiece 8 and is connected with the positioning hole 24 on reference block 2, so as to position workpiece 8 on reference block 2. In this process, it is ensured that the third machining surface is parallel to the top surface of reference block 2. At the same time, an angle block 6 with 60° angle is selected, and the face of the 60° angle is attached to the reference surface of workpiece 8 to support workpiece 8, and workpiece 8 is pressed tightly using pressing mechanism 3.

[0049] Subsequently, the position of workpiece 8 is changed, the height gauge assembly 4 is used to detect the accuracy of the third machining surface, and the amount of material to be removed is obtained. Then, the third machining surface is filed and processed until it reaches the set accuracy requirement.

[0050] Then, the position of workpiece 8 is changed, and the fine machining of the fifth machining is completed based on the reference surface.

[0051] Finally, the second machining surface, the fourth machining surface and the sixth machining surface are machined based on the machined first machining surface, the third machining surface and the fifth machining surface respectively.

[0052] Embodiment two:

[0053] When the workpiece 8 is a cuboid, first fix the workpiece 8 on the bench vice, and select the working surface where one of the long edges of the workpiece 8 is located to perform the filing process until the set precision requirement is reached. Define the working surface that has reached the precision requirement after filing as the reference surface of the workpiece 8.

[0054] Next, pass the positioning column through the positioning column hole at the center of the workpiece 8, and connect it with the positioning hole 24 on the reference block 2, so as to position the workpiece 8 on the reference block 2. In this process, make sure that the working surface where one of the short edges of the workpiece 8 that is perpendicular to the reference surface is parallel to the top surface of the reference block 2. At the same time, connect the vertical stop block 5 with the reference block 2 through the second connecting hole 23, so that the reference surface of the workpiece 8 is in contact with the vertical stop block 5, and use the pressing mechanism 3 to press the workpiece 8.

[0055] Subsequently, use the height gauge assembly 4 to detect the working surface where the short edge is located and determine its precision value, and calculate the amount of material that needs to be removed according to the set precision requirement. Next, perform the filing process on the surface where the short edge is located until it reaches the precision requirement. Then, turn the position of the workpiece 8, and perform the process on the surface where the remaining short edge is located. At this time, place the parallel block 7 under the lower edge of the workpiece 8 to ensure the perpendicularity of the surface where the short edge is located to the surface where the long edge is located, and ensure the parallelism of the surfaces where the two opposite short edges are located.

[0056] Finally, perform the finishing process on the surface where the remaining long edge is located until all the working surfaces reach the set precision requirement.

[0057] The above specific embodiments do not constitute a limitation on the protection scope of the present application. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A benchwork competition finishing fixture, characterized by, The utility model relates to a kind of machining auxiliary assembly and height gauge assembly for workpiece, comprising: Platform; Reference block, the reference block is vertically arranged on the platform; Two mounting holes, a plurality of first connecting holes and a plurality of second connecting holes are provided on the reference block; Pressing mechanism, the pressing mechanism is provided on the reference block, for fixing workpiece on the reference block; Processing auxiliary group, the processing auxiliary group is adapted to workpiece, for adjusting the height and / or angle of workpiece, to ensure the machining accuracy of workpiece; Height gauge assembly, the height gauge assembly is provided on the platform, for measuring the height of workpiece and the accuracy of its machining surface.

2. The benchwork race finishing fixture of claim 1, wherein, Two mounting holes, a plurality of first connecting holes and a plurality of second connecting holes are respectively provided on three mutually perpendicular faces of the reference block;Among them, the mounting hole is provided through on the top surface of the reference block, a plurality of first connecting holes are provided through on the front surface of the reference block;A plurality of second connecting holes are provided on the side surface of the reference block.

3. The benchwork race finishing fixture of claim 1, wherein, The pressing mechanism includes a screw, a pressing plate and at least one backing plate;The backing plate is arranged between the pressing plate and the reference block, for supporting the pressing plate;The pressing plate is provided with an elongated hole, the screw passes through the elongated hole and is connected with the reference block through the first connecting hole, and the pressing plate is pressed by adjusting the screw.

4. The benchwork racing finishing fixture of claim 3, wherein, The first connecting hole is a threaded hole.

5. The benchwork racing finishing fixture of claim 1, wherein, The processing auxiliary group includes a vertical stop block, at least one angle block and at least one parallel pad;Among them, the angle block is used alone or combined with the parallel pad;The vertical stop block is used alone or combined with the parallel pad.

6. The benchwork race finishing fixture of claim 5, wherein, When the angle block is used alone, the angle block is arranged on the reference block and is in contact with the reference surface of workpiece, to realize the angle positioning of workpiece;When the angle block is combined with the parallel pad, the parallel pad and the angle block are arranged on the reference block respectively, wherein the parallel pad is used to adjust the height of workpiece, and the angle block is in contact with the reference surface of workpiece, to realize the angle positioning of workpiece.

7. The benchwork race finishing fixture of claim 5, wherein, When the vertical stop block is combined with the parallel pad, the vertical stop block is connected with the reference block through the second connecting hole, and the parallel pad is arranged on the reference block, and the vertical stop block and the parallel pad are perpendicular to each other.

8. The benchwork racing finishing fixture of claim 1, wherein, The height gauge assembly includes a height gauge and a lever table;The height gauge is arranged on the reference block;The lever table is connected with the height gauge, and the lever table is used to detect the accuracy of workpiece machining surface.

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