Positioning clamp for flange machining

Abstract

The utility model discloses a positioning fixture for flange processing, which comprises a positioning block, a positioning column and hold-down mechanisms positioned on two sides of a flange, the positioning column is mounted on an annular carrier seat, the positioning block is positioned in the center of the carrier seat, and the positioning block, the carrier seat and the hold-down mechanisms are fixed on a carrier plate; a through hole is formed in the center of the flange, the inner wall of the through hole protrudes outwards in the circumferential direction to form a convex ring, the convex ring is arranged on the positioning block in a sleeving mode, the bottom of the positioning column extends to form a mounting part, a mounting groove matched with the mounting part is formed in the upper surface of the carrying base, and the flange is provided with a connecting hole corresponding to the positioning column. According to the utility model, the convex ring of the flange is sleeved on the positioning block, the positioning column is inserted into the connecting hole, and the flange is pressed by the pressing mechanism, so that the flange is quickly positioned.

Description

Technical Field

[0001] The utility model belongs to the technical field of clamps, in particular to a positioning clamp used for flange processing. Background Art

[0002] A fixture refers to a device used to fix the processing object in the mechanical manufacturing process to facilitate the processing of the workpiece. In a broad sense, any device used to quickly, conveniently and safely install the workpiece in any process in the process can be called a fixture.

[0003] Flange is also called flange or flange. Flange is a part that connects pipes to pipes and valves. The common manufacturing method is casting, which is to fine-process the cast blank. When the flange is processed in the machining center, the flange needs to be fixed to prevent the flange from sliding during the processing. The flange is usually fixed by manually tightening the screws to clamp the flange. The screws are tightened and loosened thousands of times a day, which is easy to cause slipping. In addition, the manual tightening and clamping time is too long, which affects the processing efficiency. Utility Model Content

[0004] The utility model mainly solves the technical problem of providing a positioning fixture for flange processing, wherein the flange convex ring is sleeved on the positioning block, the positioning column is inserted into the connecting hole, the flange is pressed by the pressing mechanism, and the flange is quickly positioned.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: a positioning fixture for flange processing, comprising a positioning block, a positioning column and a clamping mechanism located on both sides of the flange, the positioning column is installed on an annular carrier, the positioning block is located at the center of the carrier, and the positioning block, the carrier and the clamping mechanism are all fixed to a carrier plate;

[0006] A through hole is provided at the center of the flange, and the inner wall of the through hole bulges outward in the circumferential direction to form a convex ring, the convex ring is sleeved on the positioning block, the bottom of the positioning column extends to form a mounting portion, the upper surface of the carrier is provided with a mounting groove matching the mounting portion, the flange is provided with a connecting hole corresponding to the positioning column, the convex ring of the flange is sleeved on the positioning block, the positioning column is inserted into the connecting hole, and the flange is pressed by a clamping mechanism, so as to quickly position the flange;

[0007] The clamping mechanism includes a clamping block, a mounting seat and a translation cylinder that drives the mounting seat to move horizontally, the clamping block is located below the mounting seat, a spring is provided between the clamping block and the mounting seat, the spring is sleeved on a limiting rod, a boss is provided at the lower end of the limiting rod, the upper end of the limiting rod passes through the clamping block and is connected to the mounting seat, the mounting seat is connected to the output shaft of the translation cylinder, the translation cylinder is fixed to the carrier plate, the horizontal cylinder drives the mounting seat to drive the clamping block to move, and the flange is clamped by the clamping block.

[0008] Furthermore, the lower surface of the clamping block is provided with a guide surface and a clamping surface, the clamping surface is used to clamp the flange, the guide surface is an inclined surface, and the inclined surface is gradually inclined from bottom to top towards the direction close to the flange.

[0009] Furthermore, guide plates are respectively provided on both sides of the mounting seat, and the guide plates are located on both sides of the carrier plate.

[0010] Furthermore, the mounting portion is fixed to the mounting groove by screws.

[0011] Furthermore, the positioning block is a cylindrical body that is small at the top and large at the bottom.

[0012] Furthermore, the positioning block is provided with a waste discharge groove, the carrier plate is provided with a waste discharge hole, the waste discharge groove is communicated with the waste discharge hole, and a waste collecting groove is provided below the waste discharge hole.

[0013] Furthermore, the carrier is provided with a blowing channel, the air inlet of the blowing channel is located on the outer wall of the carrier, the air outlet of the blowing channel is located on the inner wall of the carrier, and the blowing channel is gradually inclined toward the center of the carrier from top to bottom.

[0014] Furthermore, a supporting side plate is provided below the carrier plate.

[0015] The beneficial effects of the present invention include at least the following points:

[0016] The center of the flange of the utility model is provided with a through hole, the inner wall of the through hole circumferentially protrudes outward to form a convex ring, the convex ring is sleeved on the positioning block, the bottom of the positioning column extends to form a mounting portion, the upper surface of the carrier is provided with a mounting groove matching the mounting portion, the flange is provided with a connecting hole corresponding to the positioning column, the convex ring of the flange is sleeved on the positioning block, the positioning column is inserted into the connecting hole, and the flange is compressed by a clamping mechanism, so as to quickly position the flange;

[0017] The clamping mechanism of the utility model comprises a clamping block, a mounting seat and a translation cylinder for driving the mounting seat to move horizontally, the clamping block is located below the mounting seat, a spring is provided between the clamping block and the mounting seat, the spring is sleeved on a limit rod, a convex head is provided at the lower end of the limit rod, the upper end of the limit rod passes through the clamping block and is connected with the mounting seat, the mounting seat is connected with the output shaft of the translation cylinder, the translation cylinder is fixed to the carrier plate, the horizontal cylinder drives the mounting seat to drive the clamping block to move, and the flange is clamped by the clamping block. It is worth noting that the guide surface of the clamping block is an inclined surface, and the inclination direction of the inclined surface gradually inclines from bottom to top toward the direction close to the flange, thereby guiding the clamping block. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 The utility model Figure 1 A magnified view of point A;

[0020] Figure 3 It is a cross-sectional view of the utility model;

[0021] Figure 4 The utility model Figure 3 The enlarged view of point B;

[0022] Figure 5 It is a structural schematic diagram of the positioning block of the utility model;

[0023] Figure 6 It is a structural schematic diagram of the carrier of the utility model;

[0024] Figure 7 It is a cross-sectional view of the flange of the utility model;

[0025] The parts in the accompanying drawings are marked as follows:

[0026] 1. Positioning block; 11. Waste discharge groove; 2. Positioning column; 21. Mounting part; 22. Screw; 3. Flange; 31. Through hole; 32. Convex ring; 33. Connecting hole; 41. Pressing block; 411. Guide surface; 412. Pressing surface; 42. Mounting seat; 43. Translation cylinder; 44. Spring; 45. Limiting rod; 451. Convex head; 46. Guide plate; 5. Carrier; 51. Blowing air channel; 511. Air inlet; 512. Air outlet; 52. Mounting groove; 6. Carrier plate; 61. Waste discharge hole; 62. Support side plate. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0028] Embodiment 1: A positioning fixture for flange processing, such as Figure 1 As shown, it includes a positioning block 1, a positioning column 2 and a clamping mechanism located on both sides of a flange 3, the positioning column 2 is installed on an annular carrier 5, the positioning block 1 is located at the center of the carrier 5, and the positioning block 1, the carrier 5 and the clamping mechanism are all fixed to a carrier plate 6;

[0029] like Figure 7As shown, a through hole 31 is provided at the center of the flange 3, and the inner wall of the through hole 31 bulges outwardly in the circumferential direction to form a convex ring 32, and the convex ring 32 is sleeved on the positioning block 1, and the bottom of the positioning column 2 extends to form a mounting portion 21, and the upper surface of the carrier 5 is provided with a mounting groove 52 matching the mounting portion 21, and the flange 3 is provided with a connecting hole 33 corresponding to the positioning column 2;

[0030] The clamping mechanism includes a clamping block 41, a mounting seat 42, and a translation cylinder 43 for driving the mounting seat 42 to move horizontally. The clamping block 41 is located below the mounting seat 42. Figure 2 As shown, a spring 44 is provided between the clamping block 41 and the mounting seat 42, and the spring 44 is sleeved on a limiting rod 45. A protrusion 451 is provided at the lower end of the limiting rod 45. The upper end of the limiting rod 45 passes through the clamping block 41 and is connected to the mounting seat 42. The mounting seat 42 is connected to the output shaft of the translation cylinder 43, and the translation cylinder 43 is fixed to the carrier plate 6.

[0031] The lower surface of the pressing block 41 is provided with a guide surface 411 and a pressing surface 412 . The pressing surface 412 is used to press the flange 3 . The guide surface 411 is an inclined surface, and the inclined surface is gradually inclined from bottom to top toward the direction close to the flange 3 .

[0032] Guide plates 46 are respectively disposed on two sides of the mounting seat 42 , and the guide plates 46 are located on two sides of the carrier plate 6 .

[0033] like Figure 4 As shown, the mounting portion 21 is fixed to the mounting groove 52 by means of screws 22 .

[0034] The positioning block 1 is a cylindrical body with a small top and a large bottom, which is convenient for guiding, so that the convex ring of the flange is sleeved on the positioning block.

[0035] like Figure 3 and 5 As shown, the positioning block 1 is provided with a waste discharge groove 11, the carrier plate 6 is provided with a waste discharge hole 61, the waste discharge groove 11 is connected with the waste discharge hole 61, and a waste collecting groove (not shown) is provided below the waste discharge hole 61.

[0036] During specific implementation, the air inlet of the blowing air channel is connected to the air pump through an air pipe.

[0037] Embodiment 2: The structure of this embodiment is basically the same as that of embodiment 1, except that:

[0038] like Figure 6As shown, the carrier 5 is provided with a blowing duct 51, an air inlet 511 of the blowing duct 51 is located on the outer wall of the carrier 5, an air outlet 512 of the blowing duct 51 is located on the inner wall of the carrier 5, and the blowing duct 51 gradually inclines toward the center of the carrier 5 from top to bottom.

[0039] A supporting side plate 62 is provided below the carrier plate 6 .

[0040] The working principle of the utility model is as follows: the convex ring of the flange is sleeved on the positioning block, the positioning column of the carrier is inserted into the connecting hole, the horizontal cylinder drives the mounting seat to slide, and the mounting seat drives the clamping block to move. Under the action of the spring, the clamping block is pressed down and guided by the guide surface of the clamping block. The flange is clamped by the clamping surface of the clamping block to facilitate subsequent processing of the flange (such as polishing the inner wall of the flange). The processed debris and other waste materials are transferred into the waste collection tank after passing through the waste discharge groove and the waste discharge hole. A small part of the debris that is not easy to fall is blown through the outlet air duct to transfer this part of the debris into the waste collection tank.

[0041] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A positioning fixture for flange processing, characterized in that: It comprises a positioning block (1), a positioning column (2) and a clamping mechanism located on both sides of a flange (3), wherein the positioning column is mounted on an annular carrier (5), the positioning block is located at the center of the carrier, and the positioning block, the carrier and the clamping mechanism are all fixed to a carrier plate (6); A through hole (31) is provided at the center of the flange, the inner wall of the through hole bulges outwardly in the circumferential direction to form a convex ring (32), the convex ring is sleeved on the positioning block, the bottom of the positioning column extends to form a mounting portion (21), the upper surface of the carrier is provided with a mounting groove (52) matching the mounting portion, and the flange is provided with a connecting hole (33) corresponding to the positioning column; The clamping mechanism comprises a clamping block (41), a mounting seat (42) and a translation cylinder (43) for driving the mounting seat to move horizontally, the clamping block is located below the mounting seat, a spring (44) is provided between the clamping block and the mounting seat, the spring is sleeved on a limiting rod (45), a protrusion (451) is provided at the lower end of the limiting rod, the upper end of the limiting rod passes through the clamping block and is connected to the mounting seat, the mounting seat is connected to the output shaft of the translation cylinder, and the translation cylinder is fixed to the carrier plate.

2. The positioning fixture for flange processing according to claim 1, characterized in that: The lower surface of the pressing block is provided with a guide surface (411) and a pressing surface (412), the pressing surface is used to press the flange, the guide surface is an inclined surface, and the inclined direction of the inclined surface gradually inclines from bottom to top towards a direction close to the flange.

3. The positioning fixture for flange processing according to claim 1, characterized in that: Guide plates (46) are respectively provided on both sides of the mounting seat, and the guide plates are located on both sides of the carrier plate.

4. The positioning fixture for flange processing according to claim 1, characterized in that: The mounting portion is fixed to the mounting groove by means of screws (22).

5. The positioning fixture for flange processing according to claim 1, characterized in that: The positioning block is a cylindrical body that is small at the top and large at the bottom.

6. The positioning fixture for flange processing according to claim 1, characterized in that: The positioning block is provided with a waste discharge groove (11), the carrier plate is provided with a waste discharge hole (61), the waste discharge groove is communicated with the waste discharge hole, and a waste collection groove is provided below the waste discharge hole.

7. The positioning fixture for flange processing according to claim 1, characterized in that: The carrier is provided with a blowing channel (51), the air inlet (511) of the blowing channel is located on the outer wall of the carrier, the air outlet (512) of the blowing channel is located on the inner wall of the carrier, and the blowing channel is gradually inclined toward the center of the carrier from top to bottom.

8. The positioning fixture for flange processing according to claim 1, characterized in that: A supporting side plate (62) is provided below the carrier plate.

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