Indexing fixture for part drilling

Abstract

The utility model discloses an indexing fixture for part drilling, which relates to the technical field of fixtures and comprises a fixture table and an indexing mechanism, a plurality of groups of clamping mechanisms are arranged at the top end of the fixture table, the indexing mechanism comprises a movable plate, the movable plate is arranged above the fixture table, and a first connecting mechanism is arranged between the movable plate and the fixture table. Movable holes are formed in the top ends of the movable plates, and index rods are movably inserted into the inner walls of the movable holes. A plate part is arranged at the top end of the clamp table, then the indexing rod moves in the movable hole, the bottom end of the indexing rod makes contact with the top end of the plate part, at the moment, the part is moved, the position to be drilled marked on the part is aligned to the bottom end of the indexing rod, and clamping and positioning are conducted through the clamping mechanism. Due to the fact that the index rod points to the drilling position of the external drilling equipment, the part can be accurately aligned to the drilling position to be machined, and the drilling machining accuracy of the part is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of jigs, in particular to an indexing jig for part drilling. Background Technique

[0002] A jig is a device for limiting the position of a part during processing so that the part can be stably processed.

[0003] During the drilling process, the part needs to be fixed by a jig, and then the part can be drilled by a drilling device. A common jig is to hold the part at multiple points by squeezing the part with a clamping plate so that the part is fixed.

[0004] During drilling, it is necessary to ensure that the drilling position of the drilling device is consistent with the position of the hole to be drilled on the part. However, during the clamping process of the part, most of them are directly observed by the staff to align the position of the hole to be drilled on the part and the drilling position of the drilling device, which has a certain error and reduces the accuracy of the drilling process. Therefore, we propose an indexing jig for part drilling. Content of the Utility Model

[0005] The purpose of the utility model is to provide an indexing jig for part drilling to solve the problems proposed in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: an indexing jig for part drilling, including:

[0007] A jig table, and a plurality of clamping mechanisms are arranged at the top of the jig table;

[0008] An indexing mechanism, which is arranged at the top of the jig table. The indexing mechanism is used to align the part at the drilling position. The indexing mechanism includes a movable plate, which is arranged above the jig table. A first connection mechanism is arranged between the movable plate and the jig table. An activity hole is opened at the top of the movable plate, and an indexing rod is movably inserted into the inner wall of the activity hole.

[0009] Preferably, the first connection mechanism includes a fixed rod, the bottom end of the fixed rod is fixedly connected to the top of the jig table, a second rotation hole is opened at the top of the movable plate, the outer wall of the fixed rod is rotatably connected to the inner wall of the second rotation hole, an activity cavity is opened on the outer wall of the fixed rod, a steel ball is movably clamped in the inner wall of the activity cavity, a spring is arranged between the outer wall of the steel ball and the inner wall of the activity cavity, and an arc-shaped groove is opened on the outer wall of the movable plate.

[0010] Preferably, the clamping mechanism includes a clamping block, a second connection mechanism is arranged between the clamping block and the jig table, an extrusion mechanism is arranged at the top of the clamping block, and an extension mechanism is arranged on the outer wall of the clamping block.

[0011] Preferably, the second connecting mechanism includes fixing plates symmetrically and fixedly connected to the top end of the fixture table. Rotating shafts are fixedly connected to both sides of the clamping block. A first rotating hole is formed in one side of the fixing plate, and the outer wall of the rotating shaft is rotatably connected to the inner wall of the first rotating hole.

[0012] Preferably, the pressing mechanism includes a first threaded hole formed in the top end of the clamping block. A locking bolt is threadedly connected to the inner wall of the first threaded hole, and a contact mechanism is provided at the bottom end of the locking bolt.

[0013] Preferably, the contact mechanism includes a pressing block. The pressing block is movably inserted into the inner wall of the first threaded hole. The top end of the pressing block is fixedly connected to the bottom end of the locking bolt. A spherical hole is formed in the bottom end of the pressing block, and a rolling ball is movably clamped in the inner wall of the spherical hole.

[0014] Preferably, the extension mechanism includes an extension plate. A slot is formed in the outer wall of the clamping block. The outer wall of the extension plate is slidably connected to the inner wall of the slot. A fixing mechanism is provided between the extension plate and the clamping block.

[0015] Preferably, the fixing mechanism includes a second threaded hole formed in the top end of the clamping block. The interior of the second threaded hole is communicated with the interior of the slot. A fixing bolt is threadedly connected to the inner wall of the second threaded hole. A positioning hole is formed in the top end of the extension plate, and the outer wall of the fixing bolt is movably inserted into the inner wall of the positioning hole.

[0016] The technical effects and advantages of the present utility model:

[0017] With the settings of the movable plate, movable hole and indexing rod in the present utility model, the sheet metal part is placed on the top end of the fixture table. Then, through the movement of the indexing rod in the movable hole, the bottom end of the indexing rod contacts the top end of the sheet metal part. At this time, the part is moved so that the marked drilling position on the part is aligned with the bottom end of the indexing rod, and it is clamped and positioned by the clamping mechanism. Since the indexing rod points to the drilling position of the external drilling equipment, the part can be accurately aligned with the drilling position for processing, thereby improving the accuracy of the part drilling process. Description of the Drawings

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0019] Figure 2 is a cross-sectional structural schematic diagram of the top of the fixing rod of the present utility model.

[0020] Figure 3 is the present utility model Figure 1 partial enlarged structural schematic diagram at A.

[0021] Figure 4 This is a front sectional view structural diagram of the clamping mechanism of the present utility model.

[0022] In the figure: 101, fixture table; 201, movable plate; 202, movable hole; 203, indexing rod; 301, clamping block; 401, fixed plate; 402, rotating shaft; 403, first rotating hole; 501, first threaded hole; 502, locking bolt; 601, abutting block; 602, spherical hole; 603, rolling ball; 701, slot; 702, extension plate; 801, second threaded hole; 802, fixing bolt; 803, positioning hole; 901, fixed rod; 902, second rotating hole; 903, movable cavity; 904, steel ball; 905, spring; 906, arc-shaped groove. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] The present utility model provides an indexing fixture for drilling parts as Figures 1-4 shown, which includes a fixture table 101 and an indexing mechanism. A plurality of clamping mechanisms are provided at the top of the fixture table 101. Parts are positioned on the fixture table 101 through the clamping mechanisms, and then drilling processing is performed by an external drilling device above the fixture table 101;

[0025] In a preferred embodiment, the indexing mechanism is arranged at the top of the fixture table 101. The indexing mechanism is used to align the parts at the drilling position. The indexing mechanism includes a movable plate 201. The movable plate 201 is arranged above the fixture table 101. A first connection mechanism is arranged between the movable plate 201 and the fixture table 101. A movable hole 202 is opened at the top of the movable plate 201. The inner wall of the movable hole 202 is movably inserted and connected with an indexing rod 203. A sheet metal part is placed at the top of the fixture table 101, and then the indexing rod 203 moves in the movable hole 202, so that the bottom end of the indexing rod 203 contacts the top end of the sheet metal part. At this time, the part is moved so that the marked drilling position on the part is aligned with the bottom end of the indexing rod 203, and is clamped and positioned through the clamping mechanism. Since the indexing rod 203 points to the drilling position of the external drilling device, the part can be accurately aligned with the drilling position for processing, thereby improving the accuracy of the part drilling processing.

[0026] Among them, the first connecting mechanism includes a fixing rod 901. The bottom end of the fixing rod 901 is fixedly connected to the top end of the fixture table 101. A second rotating hole 902 is opened at the top end of the movable plate 201. The outer wall of the fixing rod 901 is rotationally connected to the inner wall of the second rotating hole 902. An activity cavity 903 is opened on the outer wall of the fixing rod 901. A steel ball 904 is movably clamped on the inner wall of the activity cavity 903. A spring 905 is arranged between the outer wall of the steel ball 904 and the inner wall of the activity cavity 903. An arc-shaped groove 906 is opened on the outer wall of the movable plate 201. By rotating the movable plate 201 around the fixing rod 901, after the part indexing and clamping are completed, the movable plate 201 can be rotated so that the movable plate 201 is no longer directly above the part, thus avoiding the influence on the drilling process of the part. And when indexing is required, the movable plate 201 rotates until the arc-shaped groove 906 aligns with the activity cavity 903. At this time, under the elastic action of the spring 905, the steel ball 904 pops out of the activity cavity 903 and is clamped into the arc-shaped groove 906, and at the same time, a knocking sound is emitted, which can prompt the staff that the movable plate 201 has rotated to the precise position and indexing work can be carried out.

[0027] Among them, the clamping mechanism includes a clamping block 301. A second connecting mechanism is arranged between the clamping block 301 and the fixture table 101. An extrusion mechanism is arranged at the top end of the clamping block 301. An extension mechanism is arranged on the outer wall of the clamping block 301. The second connecting mechanism includes fixing plates 401 symmetrically and fixedly connected to the top end of the fixture table 101. Rotating shafts 402 are fixedly connected to both sides of the clamping block 301. A first rotating hole 403 is opened on one side of the fixing plate 401. The outer wall of the rotating shaft 402 is rotationally connected to the inner wall of the first rotating hole 403. The extrusion mechanism includes a first threaded hole 501 opened at the top end of the clamping block 301. A locking bolt 502 is threadedly connected to the inner wall of the first threaded hole 501. A contact mechanism is arranged at the bottom end of the locking bolt 502. By screwing the locking bolt 502 in the first threaded hole 501, the first threaded hole 501 descends. As the first threaded hole 501 continuously moves downward, the clamping block 301 can be rotated around the rotating shaft 402 until the extension plate 702 abuts against the top end of the part, and then the part can be clamped.

[0028] Among them, the contact mechanism includes a resisting block 601. The resisting block 601 is movably inserted and connected to the inner wall of the first threaded hole 501. The top end of the resisting block 601 is fixedly connected to the bottom end of the locking bolt 502. A ball hole 602 is opened at the bottom end of the resisting block 601. A rolling ball 603 is movably clamped in the inner wall of the ball hole 602. Through the rotational setting of the rolling ball 603, since the locking bolt 502 needs to abut against the fixture table 101 when being screwed, when the rolling ball 603 abuts against the fixture table 101, when the first threaded hole 501 rotates, a large frictional force will not be generated between the first threaded hole 501 and the fixture table 101.

[0029] Among them, the extension mechanism includes an extension plate 702. A slot 701 is formed on the outer wall of the clamping block 301. The outer wall of the extension plate 702 is slidably connected to the inner wall of the slot 701. A fixing mechanism is arranged between the extension plate 702 and the clamping block 301. When the length of the clamping block 301 itself is not sufficient to clamp a part, a suitable extension plate 702 can be inserted into the slot 701 and then fixed by the fixing mechanism, so that the clamping mechanism can be extended for use, making the clamping mechanism applicable to parts of different sizes and improving the applicability of the clamping mechanism.

[0030] Among them, the fixing mechanism includes a second threaded hole 801 formed at the top of the clamping block 301. The inside of the second threaded hole 801 is communicated with the inside of the slot 701. A fixing bolt 802 is threadedly connected to the inner wall of the second threaded hole 801. A positioning hole 803 is formed at the top of the extension plate 702. The outer wall of the fixing bolt 802 is movably inserted into the inner wall of the positioning hole 803. By screwing the fixing bolt 802 into the second threaded hole 801 and inserting it into the positioning hole 803, the extension plate 702 can be inserted into the slot 701, so that the extension plate 702 can work stably.

[0031] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Index fixture for drilling parts, characterized in that Including: A fixture table (101), on the top of which there are multiple groups of clamping mechanisms; An indexing mechanism, which is arranged on the top of the fixture table (101) and is used to align the parts at the drilling positions. The indexing mechanism includes a movable plate (201), the movable plate (201) is arranged above the fixture table (101), a first connection mechanism is arranged between the movable plate (201) and the fixture table (101), a movable hole (202) is opened at the top of the movable plate (201), and an indexing rod (203) is movably inserted and connected to the inner wall of the movable hole (202).

2. The indexing fixture for part drilling according to claim 1, wherein, The first connection mechanism includes a fixed rod (901), the bottom end of the fixed rod (901) is fixedly connected to the top of the fixture table (101), a second rotating hole (902) is opened at the top of the movable plate (201), the outer wall of the fixed rod (901) is rotatably connected to the inner wall of the second rotating hole (902), a movable cavity (903) is opened on the outer wall of the fixed rod (901), a steel ball (904) is movably clamped on the inner wall of the movable cavity (903), a spring (905) is arranged between the outer wall of the steel ball (904) and the inner wall of the movable cavity (903), and an arc-shaped groove (906) is opened on the outer wall of the movable plate (201).

3. The indexing fixture for part drilling according to claim 1, characterized in that, The clamping mechanism includes a clamping block (301), a second connection mechanism is arranged between the clamping block (301) and the fixture table (101), an extrusion mechanism is arranged at the top of the clamping block (301), and an extension mechanism is arranged on the outer wall of the clamping block (301).

4. The indexing fixture for part drilling according to claim 3, characterized in that, The second connection mechanism includes fixing plates (401) symmetrically and fixedly connected to the top of the fixture table (101), rotating shafts (402) are fixedly connected to both sides of the clamping block (301), a first rotating hole (403) is opened on one side of the fixing plate (401), and the outer wall of the rotating shaft (402) is rotatably connected to the inner wall of the first rotating hole (403).

5. The indexing fixture for part drilling according to claim 3, characterized in that, The extrusion mechanism includes a first threaded hole (501) opened at the top of the clamping block (301), a locking bolt (502) is threadedly connected to the inner wall of the first threaded hole (501), and a contact mechanism is arranged at the bottom end of the locking bolt (502).

6. The indexing fixture for part drilling according to claim 5, characterized in that, The contact mechanism includes a resisting block (601), the resisting block (601) is movably inserted and connected to the inner wall of the first threaded hole (501), the top end of the resisting block (601) is fixedly connected to the bottom end of the locking bolt (502), a ball hole (602) is opened at the bottom end of the resisting block (601), and a rolling ball (603) is movably clamped on the inner wall of the ball hole (602).

7. The indexing fixture for part drilling according to claim 3, characterized in that, The extension mechanism includes an extension plate (702), a slot (701) is opened on the outer wall of the clamping block (301), the outer wall of the extension plate (702) is slidably connected to the inner wall of the slot (701), and a fixing mechanism is arranged between the extension plate (702) and the clamping block (301).

8. The indexing fixture for part drilling according to claim 7, characterized in that, The fixing mechanism includes a second threaded hole (801) opened at the top of the clamping block (301). The interior of the second threaded hole (801) is communicated with the interior of the slot (701). A fixing bolt (802) is threadedly connected to the inner wall of the second threaded hole (801). A positioning hole (803) is opened at the top of the extension plate (702). The outer wall of the fixing bolt (802) is movably inserted into the inner wall of the positioning hole (803).

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