A processing matching device for U-shaped workpieces

Abstract

The application discloses a processing matched device for U-shaped workpieces, which comprises a base, a positioning frame arranged on the top of the base, left and right support blank to be processed arranged on the top of the positioning frame, positioning columns and side pressing plates arranged on the left and right sides of the left and right support blanks, one end of the side pressing plate being used for pressing the left support pressing end face of the left support blank or the right support pressing end face of the right support blank, the other end of the side pressing plate being used for pressing the right end face of the boss on the base, the two positioning columns being used for abutting the left support end face of the left support blank and the right support end face of the right support blank, the top faces of the left and right support blanks being in contact with the bottom faces of the two ends of a large pressing plate, and the large pressing plate being connected with the top of the base through a large double-end bolt. The left and right support blanks as the U-shaped workpieces can be reliably clamped and positioned, the machining of the bevel, the stop face and the groove on the workpiece can be completed through one-time clamping, and the machining precision is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mechanical processing, in particular to a processing matching device for U-shaped workpieces. BACKGROUND

[0002] The left support and the right support are key parts for controlling the on-off of the contact points of the ZDJ9 type electric switch machine contact point seat group, and the blanks of the left support and the right support are both U-shaped workpieces formed by casting. Figure 1 The blank of the left support 1 Figure 2 is in a mirror image relationship (specifically, a front-back symmetry relationship) with the blank of the right support 2

[0003] Referring to Figure 1 , the left recessed table 108 with a top opening is arranged at the transverse middle position of the blank of the left support 1, wherein the upper left and right sides have a left support end face 103 and a left support pressing end face 107 respectively, the lower ends of the two sides have a left support table side face 101 respectively, the upper part of the two left support table side faces 101 has a left support shoulder 102 protruding outward respectively, the front side of the left recessed table 108 is provided with a left support reserved stop face 105, and the left and right sides of the left support reserved stop face 105 are respectively provided with a left support reserved inclined face 104 and a left ear 106;

[0004] Referring to Figure 2 , the right recessed table 208 with a top opening is arranged at the transverse middle position of the blank of the right support 2, wherein the upper left and right sides have a right support end face 203 and a right support pressing end face 207 respectively, the lower ends of the two sides have a right support table side face 201 respectively, the upper part of the two right support table side faces 201 has a right support shoulder 202 protruding outward respectively, the front side of the right recessed table 208 is provided with a right support reserved stop face 205, and the left and right sides of the right support reserved stop face 205 are respectively provided with a right support reserved inclined face 204 and a right ear 206;

[0005] For the blank of the left support 1 Figure 1 and the blank of the right support 2 as U-shaped workpieces, the processing requirements are as follows: the table side face (i.e. the left support table side face 101 and the right support table side face 201), the shoulder (i.e. the left support shoulder 102 and the right support shoulder 202) and one side end face (i.e. the left support end face 103 and the right support end face 203) processed in advance are used as the reference positioning, and the left support reserved inclined face 104, the right support reserved inclined face 204, the left support reserved stop face 105 and the right support reserved stop face 205 are processed respectively, referring to Figures 4 to 6, the R angle inclined surface (i.e. the left bracket product inclined surface 304 with the angle of R between the left bracket product 3 and the right bracket product 4 and the right bracket product inclined surface 404 with the angle of R between the right bracket product 4 and the line D), the r angle stop surface (i.e. the left bracket product stop surface 305 with the angle of r between the surface and the line D of the left bracket product 3, and the right bracket product stop surface 405 with the angle of r between the surface and the line D of the right bracket product 4), and the r angle groove (i.e. the left groove 306 with the angle of r between the groove bottom and the line D of the left bracket product 3, and the right groove 406 with the angle of r between the groove bottom and the line D of the right bracket product 4, wherein the groove bottom of the left groove 306 and the right groove 406 is the inner side groove wall of the left groove 306 on the left bracket product 3 and the right groove 406 on the right bracket product 4 respectively, and the left groove 306 and the right groove 406 are both open on the upper and lower sides and the outer side) are machined at the left ear 106 and the right ear 206 respectively, and finally the left bracket product 3 and the right bracket product 4 are machined; wherein the left bracket reserved inclined surface 104, the right bracket reserved inclined surface 204, the left bracket reserved stop surface 105 and the right bracket reserved stop surface 205 are reserved with a machining allowance of 2mm.

[0006] It should be noted that in the present application, the R angle and the r angle are used to explain that the machining plane is not parallel or perpendicular to the center line of the workpiece, the surface of the r angle stop surface and the groove bottom of the r angle groove are in the same plane, and the R angle inclined surface and the r angle stop surface are the key factors for action conversion of the workpiece (i.e. the left bracket product 3 and the right bracket product 4) in the whole machine operation.

[0007] At present, three different devices are needed to machine the above inclined surface (i.e. the left bracket product inclined surface 304 and the right bracket product inclined surface 404), the stop surface (i.e. the left bracket product stop surface 305 and the right bracket product stop surface 405) and the groove (i.e. the left groove 306 and the right groove 406), which needs three times of clamping and positioning, not only time-consuming and laborious, but also unable to guarantee the machining accuracy of the workpiece.

[0008] Therefore, it is urgent to develop a technology to solve the above technical problems. SUMMARY

[0009] The purpose of the present application is to provide a machining matching device for U-shaped workpieces in view of the technical defects of the prior art.

[0010] Therefore, the present application provides a machining matching device for U-shaped workpieces, which comprises a base, a positioning frame, a positioning column, a large pressure plate, a side pressure plate, a large double-headed bolt and a small double-headed bolt.

[0011] A horizontally distributed positioning frame is arranged on the top of the base.

[0012] The top of the positioning frame is provided with a left support blank and a right support blank to be machined at the front and rear ends respectively;

[0013] The left support blank is located in front of the right support blank;

[0014] The top of the positioning frame is provided with a left support blank and a right support blank to be machined at the front and rear ends respectively;

[0015] The side pressing plate is used for pressing the left support pressing end surface of the left support blank or the right support pressing end surface of the right support blank at one end, and is used for pressing the boss right end surface on the right side of the boss on the base at the other end;

[0016] The side pressing plate is connected with the positioning frame through a small double-end bolt;

[0017] The two positioning columns are used for abutting the left support end surface of the left support blank and the right support end surface of the right support blank respectively;

[0018] The top surfaces of the left support blank and the right support blank are in close contact with the bottom surfaces of the two ends of the large pressing plate respectively;

[0019] The middle part of the large pressing plate is connected with the top of the base through a large double-end bolt.

[0020] As can be seen from the technical scheme provided by the present application, compared with the prior art, the present application provides a machining matching device for U-shaped workpieces, which has a scientific structure design and can reliably clamp and position the left support blank and the right support blank as U-shaped workpieces through one set of device, and can complete the machining of the bevel, the stop surface and the groove on the workpiece through one clamping, thereby ensuring the machining precision of the workpiece.

[0021] By applying the present application, the left support and the right support (i.e., the left support finished product and the right support finished product) can be obtained by assisting the machine tool to machine, without the need to obtain the left support and the right support through multiple positioning and multiple machining as in the prior art, thereby significantly saving the manufacturing cost of the workpiece and saving time and labor.

[0022] Through inspection, the present application is a device capable of clamping the workpiece once and completing the machining of three elements, thereby improving the machining precision of the workpiece. The present application can be used for mirror image workpieces, thereby saving the manufacturing cost of the device. The present application can clamp the bevel and the groove of the U-shaped workpiece at different angles once without the need to replace the machining device. The present application is convenient and fast to operate, has accurate and reliable machining precision, and greatly improves the work efficiency.

[0023] In addition, the present application is used in cooperation with the machining center four-axis turntable on the machine tool, and can meet the machining requirements of planes and grooves at different angles. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 Structure diagram of the left bracket blank;

[0025] Figure 2 Structure diagram of the right bracket blank from the rear;

[0026] Figure 3 Structure diagram of the left bracket finished product;

[0027] Figure 4 Structure diagram of the right bracket finished product from the rear; Figure 3 Structure diagram of the cross section along the line A-A shown; Structure diagram of the cross section along the line B-B shown;

[0028] Structure diagram of the cross section along the line C-C shown; Figure 5 Structure diagram of the cross section along the line C-C shown; Figure 3 Structure diagram of the cross section along the line B-B shown; Structure diagram of the cross section along the line B-B shown;

[0029] Structure diagram of the cross section along the line A-A shown; Figure 6 Structure diagram of the cross section along the line A-A shown; Figure 3 Structure diagram of the cross section along the line C-C shown; Structure diagram of the cross section along the line C-C shown;

[0030] Structure diagram of the cross section along the line C-C shown; Figure 7 Structure diagram of the cross section along the line B-B shown; Structure diagram of the cross section along the line B-B shown;

[0031] Structure diagram of the cross section along the line A-A shown; Figure 8 Structure diagram of the cross section along the line A-A shown; Structure diagram of the cross section along the line A-A shown;

[0032] Structure diagram of the cross section along the line B-B shown; Figure 9 Structure diagram of the cross section along the line B-B shown; Structure diagram of the cross section along the line C-C shown;

[0033] Structure diagram of the cross section along the line C-C shown; Figure 10 Structure diagram of the cross section along the line C-C shown; Structure diagram of the cross section along the line C-C shown;

[0034] Structure diagram of the cross section along the line B-B shown; Figure 11 Structure diagram of the cross section along the line B-B shown; Structure diagram of the cross section along the line B-B shown;

[0035] Structure diagram of the cross section along the line A-A shown; Figure 12 Structure diagram of the cross section along the line A-A shown; Structure diagram of the cross section along the line A-A shown;

[0036] Structure diagram of the cross section along the line A-A shown; Figure 13 Structure diagram of the cross section along the line A-A shown; Structure diagram of the cross section along the line A-A shown;

[0037] Structure diagram of the cross section along the line A-A shown; Figure 14 Structure diagram of the cross section along the line A-A shown; Structure diagram of the cross section along the line A-A shown;

[0038] Structure diagram of the cross section along the line A-A shown; Figure 15The view of the positioning column in the processing matching device for the U-shaped workpiece provided by the application;

[0039] Figure 16 The front view of the large pressing plate in the processing matching device for the U-shaped workpiece provided by the application;

[0040] Figure 17 The back view of the large pressing plate in the processing matching device for the U-shaped workpiece provided by the application;

[0041] Figure 18 The front view of the side pressing plate in the processing matching device for the U-shaped workpiece provided by the application;

[0042] Figure 19 The back view of the side pressing plate in the processing matching device for the U-shaped workpiece provided by the application;

[0043] Figure 20 The structural schematic diagram of the large double-headed bolt in the processing matching device for the U-shaped workpiece provided by the application;

[0044] Figure 21 The structural schematic diagram of the small double-headed bolt in the processing matching device for the U-shaped workpiece provided by the application;

[0045] In the figure, 1. left support blank;

[0046] 101. left support table side surface; 102. left support shoulder; 103. left support end surface;

[0047] 104. left support reserved inclined surface; 105. left support reserved stop surface; 106. left ear;

[0048] 107. left support pressing end surface; 108. left concave table;

[0049] 2. right support blank;

[0050] 201. right support table side surface; 202. right support shoulder; 203. right support end surface;

[0051] 204. right support reserved inclined surface; 205. right support reserved stop surface; 206. right ear;

[0052] 207. right support pressing end surface; 208. right concave table;

[0053] 3. left support finished product;

[0054] 304. left support finished product inclined surface; 305. left support finished product stop surface; 306. left groove;

[0055] 4. right support finished product;

[0056] 404. right support finished bevel; 405. right support finished stop face; 406. right groove;

[0057] 5. base;

[0058] 501. boss; 502. large double-headed bolt mounting threaded hole;

[0059] 503. positioning frame mounting via; 504. L-shaped groove; 505. cavity;

[0060] 506. extension plate; 507. device mounting via; 508. boss right end face;

[0061] 6. positioning frame;

[0062] 601. large double-headed bolt via; 602. positioning frame mounting hole;

[0063] 603. left positioning frame; 604. left horizontal groove; 605. right positioning frame;

[0064] 606. right horizontal groove; 607. vertical groove; 608. side pressure plate mounting threaded hole;

[0065] 609. positioning column mounting hole; 610. clamping groove;

[0066] 7. positioning column;

[0067] 701. positioning end; 702. fixed end;

[0068] 8. large pressure plate;

[0069] 801. long circular hole; 802. large chamfer; 803. large pressure receiving camber;

[0070] 9. side pressure plate;

[0071] 901. small double-headed bolt via; 902. small pressure receiving camber;

[0072] 10. large double-headed bolt;

[0073] 1001. large locking threaded portion; 1002. large fixed threaded portion;

[0074] 11. small double-headed bolt;

[0075] 1101. small locking threaded portion; 1102. small fixed threaded portion;

[0076] 121. first hexagonal nut; 122. second hexagonal nut. DETAILED DESCRIPTION

[0077] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of the present application.

[0078] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0079] In the description of the present application, it should be understood that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "setting" should be understood broadly, for example, it can be fixedly connected, set, or detachably connected, set, or integrally connected, set. For those of ordinary skill in the art, the specific meaning of the above terms in the present patent can be understood according to the specific circumstances.

[0080] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise explicitly specified and limited.

[0081] Referring to Figures 1 to 21 The present application provides a processing device for U-shaped workpieces, which comprises a base 5, a positioning frame 6, a positioning column 7, a large pressing plate 8, a side pressing plate 9, a large double-headed bolt 10 and a small double-headed bolt 11.

[0082] The top of the base 5 is provided with a transversely distributed positioning frame 6.

[0083] The top of the positioning frame 6 is provided with a left support blank 1 and a right support blank 2 to be machined respectively at the front and rear ends.

[0084] The left support blank 1 is located in front of the right support blank 2.

[0085] The top of the positioning frame 6 is provided with a positioning column 7 and a side pressing plate 9 on the left and right sides of the left support blank 1 and the right support blank 2 respectively.

[0086] The side pressing plate 9 is used for pressing the left support pressing end surface 107 of the left support blank 1 or the right support pressing end surface 207 of the right support blank 2 at one end, and is used for pressing the boss right end surface 508 on the right side of the boss 501 on the base 5 at the other end.

[0087] The side pressing plate 9 is connected with the positioning frame 6 through a small double-headed bolt 11.

[0088] The two positioning columns 7 are used for abutting the left support end surface 103 on the left support blank 1 and the right support end surface 203 on the right support blank 2 respectively.

[0089] The top surface of the left support blank 1 and the top surface of the right support blank 2 are in close contact with the two end bottom surfaces of a large pressing plate 8 respectively.

[0090] The middle part of the large pressing plate 8 is connected with the top of the base 5 through a large double-headed bolt 10.

[0091] In the present application, the base 5 is provided with a boss 501 at the middle position of the top of the base 5, as shown in the specific implementation. Figure 11

[0092] The top of the boss 501 is provided with a positioning frame 6.

[0093] The central position of the boss 501 is provided with a vertical up-and-down through large double-headed bolt mounting threaded hole 502.

[0094] The large double-headed bolt mounting threaded hole 502 is used for threadedly fixedly connecting with the lower end of the large double-headed bolt 10.

[0095] Further, the boss 501 is provided with a vertical up-and-down through positioning frame mounting through hole 503 on the left and right sides of the large double-headed bolt mounting threaded hole 502 respectively,

[0096] The front and rear upper end surfaces (i.e. inner and outer upper end surfaces) of the boss 501 are respectively provided with an L-shaped groove 504 distributed horizontally.

[0097] The two L-shaped grooves 504 are parallel to each other.

[0098] The bottom surface of the base 5 is provided with a concave cavity 505 at a position corresponding to the boss 501.

[0099] Further, the horizontal length and the longitudinal width of the cavity 505 are respectively 20mm smaller than the horizontal length and the longitudinal width of the boss 501. ​

[0100] Specifically, the right side of the boss 501 is provided with a boss right end surface 508;

[0101] Specifically, the base 5 is provided with an extension plate 506 on the left and right sides of the boss 501 respectively;

[0102] The front and rear ends of each extension plate 506 are respectively provided with two vertically penetrating device mounting through holes 507;

[0103] Each device mounting through hole 507 is respectively arranged corresponding to the device mounting screw hole on the original bridge plate 2001 of the four-axis rotary table 2000 of the external machine tool machining center workbench 1000;

[0104] The extension plate 506 is fixedly connected with the bridge plate 2001 through the fastening bolt 2002;

[0105] The fastening bolt 2002 is threadedly fixedly connected with the position corresponding device mounting screw hole on the bridge plate 2001 after penetrating through the device mounting through hole 507.

[0106] It should be noted that the extension plate 506 is used to clamp the device of the present application to the machine tool machining center four-axis rotary table 1000 located outside; two extension plates 506 are respectively provided with two device mounting through holes 507, and the device mounting through hole 507 corresponds to the device mounting screw hole on the bridge plate 2001 of the four-axis rotary table 2000 of the machine tool machining center workbench 1000. Figure 10

[0107] Specifically, the machine tool machining center is a mature device in the prior art, for example, a vertical machine tool machining center produced by Kaibo Precision Machinery Co., Ltd. with model CPV-1400B can be used for machining workpiece planes, grooves and holes.

[0108] It should be noted that for the machine tool machining center, the bridge plate 2001 is fixed on the four-axis rotary table 2000 and can rotate 360° around the rotary table center axis E of the horizontally distributed four-axis rotary table 2000, and can be locked at any angle to process the workpiece plane at any angle with the horizontal plane.

[0109] In the present application, specifically, for the positioning frame 6, the top front end of the positioning frame 6 is provided with two left positioning frames 603 distributed transversely;

[0110] The two left positioning frames 603 are parallel to each other;

[0111] Between the two left positioning frames 603, there is a left transverse groove 604 (i.e. longitudinal gap) distributed transversely;

[0112] ​The left transverse slot 604 is used for inserting the lower end of the left bracket blank 1, so as to position the left bracket blank 1;

[0113] The top rear end of the positioning frame 6 is provided with two right positioning frames 605 distributed transversely;

[0114] The two right positioning frames 605 are parallel to each other;

[0115] Between the two right positioning frames 605, there is a right transverse slot 606 (i.e. a longitudinal gap) distributed transversely;

[0116] The right transverse slot 606 is used for inserting the lower end of the right bracket blank 2, so as to position the right bracket blank 2.

[0117] Further, the two left table side surfaces 101 at the lower end of the left bracket blank 1 are respectively in close contact with the front and rear side surfaces of the left transverse slot 604 (i.e. the side surfaces opposite to each other of the two left positioning frames 603);

[0118] The two left table shoulders 102 above the two left table side surfaces 101 at the lower end of the left bracket blank 1 are respectively in close contact with the top surfaces of the two left positioning frames 603.

[0119] Further, the two right table side surfaces 201 at the lower end of the right bracket blank 2 are respectively in close contact with the front and rear side surfaces of the right transverse slot 606 (i.e. the side surfaces opposite to each other of the two right positioning frames 605);

[0120] The two right table shoulders 202 above the two right table side surfaces 201 at the lower end of the right bracket blank 2 are respectively in close contact with the top surfaces of the two right positioning frames 605.

[0121] In a specific implementation, for the positioning frame 6, a large double-headed bolt through hole 601 vertically penetrating up and down is arranged at the center position thereof;

[0122] The large double-headed bolt through hole 601 is located directly above a large double-headed bolt mounting threaded hole 502 in the base 5;

[0123] The positioning frame 6 is provided with a positioning frame mounting hole 602 on the left and right sides of the large double-headed bolt through hole 601 respectively;

[0124] The two positioning frame mounting holes 602 are located directly above two positioning frame mounting through holes 503 in the base 5;

[0125] The positioning frame 6 is connected with the base 5 through two third bolts;

[0126] The third bolt passes through a positioning frame mounting through hole 503 in the base 5 from bottom to top and is threadedly fixedly connected with a positioning frame mounting hole 602 (which is an internal threaded hole) corresponding in position.

[0127] Specifically, the right ends of the two left positioning frames 603 and the two right positioning frames 605 are respectively provided with a longitudinal groove 607 longitudinally penetrating;

[0128] The transverse width of the longitudinal groove 607 is equal to the transverse width of the left groove 306 on the left lug 106 of the left support product 3.

[0129] The transverse width of the left groove 306 on the left lug 106 of the left support product 3 is equal to the transverse width of the right groove 406 on the right lug 206 of the right support product 4.

[0130] Specifically, the right side of the positioning frame 6 is provided with a lateral pressing plate mounting screw hole 608 transversely distributed at the position directly below the left transverse groove 604 and the right transverse groove 606.

[0131] Further, the center axis of the lateral pressing plate mounting screw hole 608 is located directly below the center axis of the left transverse groove 604 or the right transverse groove 606.

[0132] Specifically, the top of the positioning frame 6 is provided with a positioning column mounting hole 609 at the left side of the left transverse groove 604 and the right transverse groove 606.

[0133] The positioning column mounting hole 609 is used for being inserted with the fixed end 702 at the lower end of the positioning column 7.

[0134] Specifically, the bottom surface of the positioning frame 6 is provided with an inner recessed clamping groove 610 at the position corresponding to the two L grooves 504 in the base 5.

[0135] The front and rear sides of the clamping groove 610 are clamped with the two L grooves 504.

[0136] In the present application, specifically, the positioning column 7 is a stepped shaft workpiece.

[0137] The upper part of the positioning column 7 is provided with a positioning end 701.

[0138] The lower part of the positioning column 7 is provided with a fixed end 702.

[0139] The fixed end 702 of the positioning column 7 is used for being inserted with the positioning column mounting hole 609 in the positioning frame 6.

[0140] The positioning end 701 of the positioning column 7 is used for abutting against the left support end face 103 on the left support blank 1 or the right support end face 203 on the right support blank 2.

[0141] In the present application, specifically, a long circular hole 801 is arranged on the large pressing plate 8.

[0142] The big stud bolt 10 is sequentially threaded through the long circular hole 801 on the big pressing plate 8 and the big stud bolt through hole 601 on the positioning frame 6 from top to bottom, and the lower end is threadedly fixedly connected with the big stud bolt mounting threaded hole 502 in the base 5;

[0143] The upper end of the big stud bolt 10 is threadedly fixedly connected with a first hexagonal nut 121, and the bottom surface of the first hexagonal nut 121 is in abutting contact with the top surface of the big pressing plate 8.

[0144] It should be noted that the design of the long circular hole 801 can facilitate the assembly and disassembly of the big stud bolt 10 and the big pressing plate 8.

[0145] Specifically, the end side surface of the big pressing plate 8 is provided with a big chamfer 802 at four corners, respectively.

[0146] Specifically, the two end bottom portions of the big pressing plate 8 are respectively provided with a big pressure bearing arc surface 803.

[0147] The big pressure bearing arc surfaces 803 at the two end bottom portions of the big pressing plate 8 are respectively in abutment with the top surface of the left concave table 108 of the left support blank 1 and the top surface of the right concave table 208 of the right support blank 2.

[0148] It should be noted that the big chamfer 802 is provided for facilitating the rotation of the big pressing plate 8 during use.

[0149] In the present application, specifically, a small stud bolt through hole 901 is arranged at the central position of the side pressing plate 9.

[0150] The small stud bolt 11 is threadedly fixedly connected with the side pressing plate mounting threaded hole 608 in the positioning frame 6 after being threaded through the small stud bolt through hole 901 on the side pressing plate 9.

[0151] Specifically, the two end bottom portions of each side pressing plate 9 are respectively provided with a small pressure bearing arc surface 902.

[0152] For the two small pressure bearing arc surfaces 902, one small pressure bearing arc surface 902 is used to press the left support pressing end surface 107 of the left support blank 1 or the right support pressing end surface 207 of the right support blank 2, and the other small pressure bearing arc surface 902 is used to press the convex right end surface 508 on the right side of the convex table 501.

[0153] In the present application, specifically, the upper portion of the big stud bolt 10 is provided with a big locking threaded portion 100.

[0154] The lower portion of the big stud bolt 10 is provided with a big fixed threaded portion 1002.

[0155] The large fixed threaded part 1002 of the lower part of the large stud bolt 10 is sequentially threaded through the long circular hole 801 on the large pressing plate 8 and the large stud bolt through hole 601 on the positioning frame 6 from top to bottom, and the lower end is threadedly fixedly connected with the large stud bolt mounting threaded hole 502 in the base 5;

[0156] The large locking threaded part 1001 of the upper part of the large stud bolt 10 is threadedly connected with a first hexagonal nut 121, and the bottom surface of the first hexagonal nut 121 is in abutting contact with the top surface of the large pressing plate 8.

[0157] In the present application, specifically, the upper part of the small stud bolt 11 is provided with a small locking threaded part 1101;

[0158] The lower part of the small stud bolt 11 is provided with a small fixed threaded part 1102;

[0159] The small fixed threaded part 1102 of the small stud bolt 11 is threadedly fixedly connected with the side pressing plate mounting threaded hole 608 in the positioning frame 6 after being threaded through the small stud bolt through hole 901 on the side pressing plate 9;

[0160] The small locking threaded part 1101 of the small stud bolt 11 is threadedly fixedly connected with a second hexagonal nut 122, and the second hexagonal nut 122 is in abutting contact with the right side surface of the side pressing plate 9.

[0161] In order to more clearly understand the technical solutions of the present application, the working principle of the present application will be described below in combination with specific embodiments. Specifically, the following operation sequence is included:

[0162] Firstly, the device of the present application is placed horizontally, and four fastening bolts 2002 are threaded through four device mounting through holes 507 to fasten the original bridge plate 2001 of the four-axis rotary table 2000 of the machine tool machining center workbench 1000, at this time, the device of the present application can rotate 360° around the rotary table center axis E with the four-axis rotary table 2000. The left support blank 1 is placed on the left positioning frame 603 on the front side of the device of the present application, the left support shoulder 102 is in abutting contact with the upper plane of the left positioning frame 603, and the left support side surface 101 guides the left support blank 1 under the action of the left transverse groove 604,

[0163] At this time, the second hexagonal nut 122 located at the small locking threaded part 1101 of the end part of the small stud bolt 11 threaded through the side pressing plate 9 on the right end surface of the front side of the device of the present application is tightened, so that the left support blank 1 is horizontally slid to the left until the left support end surface 103 of the left support blank 1 is in abutting contact with the positioning column 7 located on the left end of the front side of the device of the present application, and the small pressure receiving arc surfaces 902 on both ends of the side pressing plate 9 are in abutting contact with the convex right end surface 508 of the convex platform 501 and the left support pressure receiving end surface 107 of the left support blank 1, respectively.

[0164] In the same way, the right bracket blank 2 is placed on the right positioning frame 605 at the rear side of the device, and the second hexagonal nut 122 is tightened to press the right bracket blank 2 by the side pressing plate 9 at the right end face of the rear side of the device;

[0165] Then, the large pressing plate 8 is adjusted to be longitudinally centered (the length of the large pressing plate 8 should not exceed the left bracket reserved stop face 105 and the right bracket reserved stop face 205, see Figure 9 The left bracket reserved stop face 105 and the right bracket reserved stop face 205 are located on the side opposite to the left bracket blank 1 and the right bracket blank 2), and the large pressure arc surface 803 at both ends of the bottom of the large pressing plate 8 abuts against the top surface of the left recess 108 of the left bracket blank 1 and the top surface of the right recess 208 of the right bracket blank 2, respectively. The first hexagonal nut 121 at the large locking screw thread part 101 at the end of the large double-headed bolt 10 penetrating the large pressing plate 8 is tightened. At this time, the positioning and clamping of the left bracket blank 1 and the right bracket blank 2 in the device are completed.

[0166] Then, the machine tool machining center is started, the angle between the four-axis turntable 2000 and the horizontal plane is adjusted, the right bracket reserved stop face 205 on the right bracket blank 2 to be machined is parallel to the horizontal plane, and the machining of the right bracket finished stop face 405 is completed by using the plane milling cutter on the machine tool. Then, the appropriate bar milling cutter is replaced, and the machining of the right groove 406 at the right ear 206 is completed.

[0167] Among them, the face milling cutter with an axis diameter corresponding to the size of the stop face on the machine tool can be selected to perform front and rear direction machining on the right bracket reserved stop face 205, thereby completing the machining of the stop face and obtaining the right bracket finished stop face 405.

[0168] Among them, the bar milling cutter with an axis diameter corresponding to the size of the groove on the machine tool is selected, the cutter is positioned at a longitudinal position corresponding to the longitudinal groove 607, and then front and rear direction cutting machining is performed, thereby obtaining the required right groove 406 on the right bracket finished product 4. It should be noted that the position of the longitudinal groove 607 is consistent with the position and width of the to-be-machined groove (i.e., the right groove 406), and the purpose is to avoid cutting the other parts of the device when machining the right groove 406. The longitudinal through design is to facilitate machining and improve the machining precision of the device.

[0169] Then, the angle between the four-axis turntable 2000 and the horizontal plane is adjusted again, the right bracket reserved inclined surface 204 on the right bracket blank 2 to be machined is parallel to the horizontal plane, and the machining of the right bracket finished inclined surface 404 is completed by replacing the plane milling cutter, thereby obtaining the right bracket finished product 4.

[0170] Wherein, the right support product bevel 404 needed on the right support product 4 is obtained by choosing the stick milling cutter on the machine tool with the proper shaft diameter to cut the processing allowance reserved on the bevel of the right support blank 2 (i.e. the reserved bevel 204 of the right support) in the left-right direction.

[0171] Similarly, the angle between the four-turn turntable 2000 and the horizontal plane is adjusted, and the corresponding cutter is replaced, so that the processing of the left support blank 1 is completed.

[0172] The above is only the preferred embodiment of the present application, and it should be noted that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.

Claims

1. A processing device for U-shaped workpieces, characterized in that, It comprises a base (5), a positioning frame (6), a positioning column (7), a large pressing plate (8), a side pressing plate (9), a large double-headed bolt (10) and a small double-headed bolt (11); The top of the base (5) is provided with a transversely distributed positioning frame (6); The top of the positioning frame (6) is provided with a left support blank (1) and a right support blank (2) respectively placed at the front and rear ends thereof; The left support blank (1) is located in front of the right support blank (2); The top of the positioning frame (6) is provided with a positioning column (7) and a side pressing plate (9) respectively at the left and right sides of the left support blank (1) and the right support blank (2); One end of the side pressing plate (9) is used for pressing the left support pressing end surface (107) of the left support blank (1) or the right support pressing end surface (207) of the right support blank (2), and the other end is used for pressing the boss right end surface (508) on the right side of the boss (501) on the base (5); The side pressing plate (9) is connected with the positioning frame (6) through the small double-headed bolt (11); The two positioning columns (7) are used for abutting the left support end surface (103) on the left support blank (1) and the right support end surface (203) on the right support blank (2) respectively; The top surfaces of the left support blank (1) and the right support blank (2) are in abutting contact with the two end bottom surfaces of the large pressing plate (8) respectively; The middle part of the large pressing plate (8) is connected with the top of the base (5) through the large double-headed bolt (10); The top front end of the positioning frame (6) is provided with two transversely distributed left positioning frames (603); The two left positioning frames (603) are parallel to each other; The left positioning frames (603) are provided with a left transverse groove (604) transversely distributed therebetween; The left transverse groove (604) is used for inserting the lower end of the left support blank (1) to position the left support blank (1); The top rear end of the positioning frame (6) is provided with two transversely distributed right positioning frames (605); The two right positioning frames (605) are parallel to each other; The right positioning frames (605) are provided with a right transverse groove (606) transversely distributed therebetween; The right transverse groove (606) is used for inserting the lower end of the right support blank (2) to position the right support blank (2); The right ends of the two left positioning frames (603) and the two right positioning frames (605) are respectively provided with a longitudinal groove (607) longitudinally penetrating; The transverse width of the longitudinal groove (607) is equal to the transverse width of the left groove (306) on the left ear (106) of the left support product (3); The transverse width of the left groove (306) on the left ear (106) of the left support product (3) is equal to the transverse width of the right groove (406) on the right ear (206) of the right support product (4); The right side front and rear ends of the positioning frame (6) are respectively provided with a side pressing plate mounting screw hole (608) transversely distributed at the positions directly below the left transverse groove (604) and the right transverse groove (606); The top of the positioning frame (6) is provided with a positioning column mounting hole (609) at the left of the left transverse groove (604) and the right transverse groove (606) respectively; Positioning column mounting hole (609) for inserting with the fixed end (702) of the lower end of the positioning column (7); Wherein, the bottom surface of the positioning frame (6) is provided with an inner recessed clamping groove (610) at the position corresponding to the two L grooves (504) in the base (5); The front and rear sides of the clamping groove (610) are clamped with the two L grooves (504).

2. The processing set for U-shaped workpieces according to claim 1, characterized in that, For the base (5), the top middle position of the base (5) is provided with a boss (501); The top of the boss (501) is provided with a positioning frame (6); The central position of the boss (501) is provided with a vertical up and down through large double head bolt mounting thread hole (502); The large double head bolt mounting thread hole (502) is used for threaded fixed connection with the lower end of the large double head bolt (10).

3. The processing set for U-shaped workpieces according to claim 2, characterized in that, The boss (501) is provided with a vertical up and down through positioning frame mounting through hole (503) on the left and right sides of the large double head bolt mounting thread hole (502); The upper end face of the boss (501) on the left and right sides is provided with an L groove (504) respectively; The two L grooves (504) are parallel to each other; The right side of the boss (501) is provided with a boss right end face (508).

4. The apparatus according to claim 2, wherein The base (5) is provided with an extension plate (506) on the left and right sides of the boss (501) respectively; The front and rear ends of each extension plate (506) are provided with two vertical through device mounting through holes (507) respectively; Each device mounting through hole (507) is respectively arranged corresponding to the device mounting thread hole on the original bridge plate (2001) of the four-axis rotary table (2000) of the machine tool machining center workbench (1000) located outside; The extension plate (506) is fixedly connected with the bridge plate (2001) through the fastening bolt (2002); The fastening bolt (2002) is threaded fixedly connected with the device mounting thread hole on the position corresponding bridge plate (2001) after passing through the device mounting through hole (507).

5. The apparatus according to claim 1, wherein The two left table side faces (101) of the left support blank (1) at the lower end are respectively close to the front and rear sides of the left horizontal groove (604); The two left table shoulders (102) of the left support blank (1) at the lower end above the two left table side faces (101) are respectively close to the top surfaces of the two left positioning frames (603); The two right table side faces (201) of the right support blank (2) at the lower end are respectively close to the front and rear sides of the right horizontal groove (606); The two right table shoulders (202) of the right support blank (2) at the lower end above the two right table side faces (201) are respectively close to the top surfaces of the two right positioning frames (605).

6. The apparatus according to claim 1, wherein For the positioning frame (6), the central position is provided with a vertical up and down through large double head bolt through hole (601); The large double head bolt through hole (601) is located directly above the large double head bolt mounting thread hole (502) in the base (5); The positioning frame (6) is provided with a positioning frame mounting hole (602) on the left and right sides of the large double head bolt through hole (601); The two positioning frame mounting holes (602) are located directly above the two positioning frame mounting through holes (503) in the base (5); The positioning frame (6) is connected with the base (5) by two third bolts; The third bolt is screwed and fixedly connected with the positioning frame mounting hole (602) corresponding in position after passing through the positioning frame mounting hole (503) in the base (5) from top to bottom.

7. The apparatus according to claim 1, wherein The upper part of the positioning column (7) is provided with a positioning end (701); The lower part of the positioning column (7) is provided with a fixed end (702); The fixed end (702) of the positioning column (7) is used for being inserted into the positioning column mounting hole (609) in the positioning frame (6); The positioning end (701) of the positioning column (7) is used for abutting against the left support end face (103) on the left support blank (1) or the right support end face (203) on the right support blank (2); And / or, A long circular hole (801) is arranged on the large pressing plate (8); The lower end of the large double-headed bolt (10) is screwedly and fixedly connected with the large double-headed bolt mounting threaded hole (502) in the base (5) after sequentially passing through the long circular hole (801) on the large pressing plate (8) and the large double-headed bolt through hole (601) on the positioning frame (6) from top to bottom; The upper end of the large double-headed bolt (10) is screwedly and fixedly connected with a first hexagonal nut (121), and the bottom surface of the first hexagonal nut (121) is in close contact with the top surface of the large pressing plate (8); And / or, Large pressure-accepting arc surfaces (803) are arranged at the bottom of the two ends of the large pressing plate (8); The large pressure-accepting arc surfaces (803) at the bottom of the two ends of the large pressing plate (8) respectively abut against the top surfaces of the left concave table (108) of the left support blank (1) and the right concave table (208) of the right support blank (2); And / or, a small double-headed bolt through hole (901) is arranged at the center position of the side pressing plate (9); The small double-headed bolt (11) is screwedly and fixedly connected with the side pressing plate mounting threaded hole (608) in the positioning frame (6) after passing through the small double-headed bolt through hole (901) on the side pressing plate (9); Small pressure-accepting arc surfaces (902) are respectively arranged at the bottom of the two ends of each side pressing plate (9); For the two small pressure-accepting arc surfaces (902), one small pressure-accepting arc surface (902) is used for pressing the left support pressing end face (107) of the left support blank (1) or the right support pressing end face (207) of the right support blank (2), and the other small pressure-accepting arc surface (902) is used for pressing the convex table right end face (508) on the right side of the convex table (501).

8. The processing set for U-shaped workpieces according to any one of claims 1 to 7, characterized in that, The upper part of the large double-headed bolt (10) is provided with a large locking threaded part (1001); The lower part of the large double-headed bolt (10) is provided with a large fixed threaded part (1002); The lower part of the large double-headed bolt (10) is screwedly and fixedly connected with the large double-headed bolt mounting threaded hole (502) in the base (5) after sequentially passing through the long circular hole (801) on the large pressing plate (8) and the large double-headed bolt through hole (601) on the positioning frame (6) from top to bottom; The upper part of the large double-headed bolt (10) is screwedly and fixedly connected with a first hexagonal nut (121), and the bottom surface of the first hexagonal nut (121) is in close contact with the top surface of the large pressing plate (8); And / or, The upper part of the small double-end bolt (11) is provided with a small locking threaded part (1101); The lower part of the small double-end bolt (11) is provided with a small fixed threaded part (1102); The small fixed threaded part (1102) of the small double-end bolt (11) is threadedly fixedly connected with the side pressing plate mounting threaded hole (608) in the positioning frame (6) after penetrating through the small double-end bolt through hole (901) on the side pressing plate (9); The small locking threaded part (1101) of the small double-end bolt (11) is threadedly fixedly connected with the second hexagonal nut (122), and the second hexagonal nut (122) is in abutting contact with the right side surface of the side pressing plate (9).

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