CN211540350U - Positioning fixture for machining - Google Patents

Abstract

The utility model relates to the technical field of clamps, in particular to a positioning clamp for machining. The utility model is provided with a drive motor, a lead screw and a nut, the drive motor drives the lead screw to rotate, the lead screw drives the drive rod to move through the nut, and the drive rod drives the clip to move inward through the movable rod, so that the workpiece can be clamped. Hold, no need for manual operation by staff, save time and effort, and improve work efficiency. The utility model is provided with fixing bolts, and the clips are fixed on the inner side wall of the movable plate by the fixing bolts. According to workpieces of different sizes, by loosening the fixing bolts, a suitable clip can be selected, and the clips can be aligned with the movable plate. Screw holes on the surface, tighten the fixing bolts, and then replace the clip, which improves the application range of the clip.

Description

A positioning fixture for machining

technical field

The utility model relates to the technical field of clamps, in particular to a positioning clamp for machining.

Background technique

Machining refers to the process of changing the external dimensions or performance of the workpiece through a mechanical device. According to the difference in processing methods, it can be divided into cutting processing and pressure processing. Fixtures are used to fix the processing objects in the process of mechanical manufacturing, so that A device that occupies the correct position to accept construction or inspection. In a broad sense, any process in the process, a device used to quickly, easily and safely install a workpiece can be called a fixture.

In the current fixture, the clips are all sleeved on the surface of the two-way threaded rod. By manually rotating the threaded rod, the clips on both sides move inward at the same time, so as to clamp the workpiece, but manual rotation by employees is time-consuming and labor-intensive. , At the same time, the phenomenon of unstable clamping is prone to occur, which affects the processing of the workpiece and reduces the processing efficiency of the workpiece.

Utility model content

The purpose of the utility model is to propose a positioning fixture for machining in order to solve the shortcomings existing in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a positioning fixture for machining, comprising a workbench, two sides of the inner cavity of the workbench are respectively provided with movable plates, and the two movable plates are arranged oppositely, the The inner side wall of the movable plate is fixedly connected with a clip, one end surface of the clip is fixedly connected with a connecting block, the inner cavity of the connecting block is rotatably connected with a movable rod, and the ends of the two movable rods away from the connecting block are hinged to each other, so One end of the movable rod away from the connecting block is provided with a driving rod on the top, and one end of the driving rod away from the fixed rod extends radially and penetrates the side wall of the workbench. A drive motor is installed at the top of the fixed plate, and a lead screw is rotatably connected to the output shaft of the drive motor. The thread is connected with a nut, and the top end of the nut is welded with the driving rod.

Preferably, the surface of the drive rod is provided with a fixed rod, the fixed rod penetrates the drive rod and is connected with two movable rods, and the two movable rods are respectively movably connected with the fixed rod.

Preferably, a connecting rod is fixedly connected to an end of the movable plate away from the connecting block, a first moving slider is fixedly connected to an end of the connecting rod away from the movable plate, and an inner side wall of the worktable is provided with a first moving slider. The block is matched with the first chute, and the connecting rod is slidably connected with the worktable through the first moving slider.

Preferably, the bottom end of the movable plate is fixedly connected with a second moving sliding block, the bottom surface of the inner cavity of the worktable is provided with a second sliding groove matching with the second moving sliding block, and the movable plate moves through the second sliding block. The slider is slidably connected with the workbench.

Preferably, the number of the second moving sliders is four, and each two is set on both sides of the bottom of the same movable plate.

Preferably, the inner cavity of the clip is provided with a fixing bolt, the inner side wall of the movable plate is provided with a screw hole matched with the fixing bolt, and the clip is connected with the movable plate through the fixing bolt.

beneficial effect

1. The utility model is provided with a drive motor, a lead screw and a nut, the drive motor drives the lead screw to rotate, the lead screw drives the drive rod to move through the nut, and the drive rod drives the clip to move inward through the movable rod, so that the The workpiece is clamped without manual operation by staff, saving time and effort and improving work efficiency.

2. The utility model is provided with fixing bolts, and the clips are fixed on the inner side wall of the movable plate by the fixing bolts. According to workpieces of different sizes, by loosening the fixing bolts, a suitable clip can be selected, and the clip can be aligned with the movable plate. Screw holes on the surface of the plate, tighten the fixing bolts, and then replace the clip, which improves the application range of the clip.

Description of drawings

1 is an isometric side view of a positioning fixture for machining proposed by the utility model;

Fig. 2 is the top view structure diagram of a kind of positioning fixture for machining proposed by the utility model;

3 is a cross-sectional view of a movable plate in a positioning fixture for machining proposed by the utility model;

FIG. 4 is a structural diagram of a clip in a positioning fixture for machining proposed by the utility model.

illustration:

1. Workbench; 2. Active plate; 3. Clip; 4. Connecting block; 5. Active rod; 6. Driving rod; 7. Fixed rod; 8. Fixed plate; 9. Driving motor; 10. Lead screw; 11. Nut; 12. Connecting rod; 13. First moving slider; 14. First sliding slot; 15. Second moving slider; 16. Second sliding slot; 17. Fixing bolt.

Detailed ways

In order to make it easier to understand the technical means, creative features, goals and effects realized by the present invention, the present invention will be further described below in conjunction with the specific embodiments and the accompanying drawings, but the following embodiments are only the preferred embodiments of the present invention. , not all. Based on the examples in the implementation manner, other examples obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

The specific embodiments of the present utility model are described below in conjunction with the accompanying drawings.

specific embodiment

Referring to Figures 1-4, a positioning fixture for machining, including a workbench 1, two sides of the inner cavity of the workbench 1 are respectively provided with movable plates 2, the two movable plates 2 are arranged oppositely, and the inner side walls of the movable plates 2 are fixedly connected There is a clip 3, one end surface of the clip 3 is fixedly connected with a connecting block 4, the inner cavity of the connecting block 4 is rotatably connected with a movable rod 5, the two movable rods 5 are hinged at one end away from the connecting block 4, and the movable rod 5 is away from the connection. The top of one end of the block 4 is provided with a driving rod 6, and the end of the driving rod 6 away from the fixing rod 7 extends radially and penetrates the side wall of the workbench 1. The bottom of the side of the workbench 1 close to the driving rod 6 is fixedly connected with a fixing plate 8 , the top of the fixed plate 8 is installed with a drive motor 9, the output shaft of the drive motor 9 is rotatably connected with a lead screw 10, the end of the lead screw 10 away from the drive motor 9 is movably connected with the side wall of the workbench 1, and the surface of the lead screw 10 is threaded A nut 11 is connected, and the top of the nut 11 is welded with the drive rod 6. By starting the drive motor 9, the drive motor 9 drives the lead screw 10 to rotate, the lead screw 10 drives the nut 11 to move on the surface of the lead screw 10, and the nut 11 drives the drive rod. 6 to move horizontally, the driving rod 6 pulls one end of the movable rod 5 to move, so that the other ends of the two movable rods 5 move inward at the same time, and the movable rod 5 drives the clip 3 to move through the movable plate 2, thereby fixing the workpiece. .

The surface of the driving rod 6 is provided with a fixed rod 7. The fixed rod 7 penetrates the driving rod 6 and is connected with two movable rods 5. The two movable rods 5 are respectively movably connected with the fixed rod 7. The driving rod 6 can pull the two movable rods through the fixed rod 7. There are two movable rods 5 , and the two movable rods 5 can rotate relative to each other along the fixed rod 7 , so as to facilitate the movement of the movable rods 5 .

One end of the movable plate 2 away from the connecting block 4 is fixedly connected with a connecting rod 12, and one end of the connecting rod 12 away from the movable plate 2 is fixedly connected with a first moving slider 13, and the inner side wall of the worktable 1 is provided with a first moving slider 13. The matching first chute 14, the connecting rod 12 is slidably connected with the worktable 1 through the first moving slider 13, the bottom end of the movable plate 2 is fixedly connected with a second moving slider 15, and the bottom surface of the inner cavity of the worktable 1 There is a second chute 16 matched with the second moving slider 15, and the movable plate 2 is slidably connected to the worktable 1 through the second moving slider 15. The number of the second moving slider 15 is four, every two Each of them is arranged in a group on both sides of the bottom of the same movable plate 2. The first moving slider 13 and the second moving slider 15 can support the movable plate 2 and facilitate the movable plate 2 to be placed in the workbench 1 at the same time. sliding.

The inner cavity of the clip 3 is provided with a fixing bolt 17, the inner side wall of the movable plate 2 is provided with a screw hole matched with the fixing bolt 17, and the clip 3 is connected with the movable plate 2 through the fixing bolt 17, and the clip 3 is relatively movable. The plate 2 can be disassembled and assembled, and different clips 3 can be installed according to workpieces of different sizes, which improves the application range of the clips 3 .

The working principle of the utility model: when using the positioning fixture for machining, first replace the appropriate clips 3 according to workpieces of different sizes, and then remove the original clips 3 by loosening the fixing bolts 17, and replace them with suitable clips 3. After removing the clip 3, it is fixed by the fixing bolt 17, and the workpiece is placed between the two clips 3. By starting the driving motor 9, the driving motor 9 drives the lead screw 10 to rotate, and the lead screw 10 is driven by the nut 11. The rod 6 moves, the driving rod 6 drives the movable rod 5 to move through the fixed rod 7, and the movable rod 5 drives the clips 3 on both sides to move inward through the movable plate 2 at the same time, thereby fixing and clamping the workpiece.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features The features are not in direct contact but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

The basic principles, main features and advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions are only preferred examples of the present invention, and are not intended to limit the present invention, without departing from the present invention. Under the premise of the spirit and scope, the present invention will also have various changes and improvements, and these changes and improvements all fall within the scope of the claimed invention. The claimed scope of the present invention is defined by the appended claims and their equivalents.

Claims (6)

1. The utility model provides a positioning fixture for machining, includes workstation (1), its characterized in that: the inner cavity both sides of workstation (1) are provided with fly leaf (2) respectively, and two fly leaves (2) set up relatively, the inside wall fixedly connected with clamping piece (3) of fly leaf (2), the one end fixed surface of clamping piece (3) is connected with connecting block (4), the inner chamber of connecting block (4) rotates and is connected with movable rod (5), and the one end that connecting block (4) were kept away from to two movable rod (5) articulates each other, the one end top that connecting block (4) were kept away from to movable rod (5) is provided with actuating lever (6), the one end that dead lever (7) were kept away from to actuating lever (6) radially extends and runs through the lateral wall of workstation (1), one side bottom fixedly connected with fixed plate (8) that workstation (1) is close to actuating lever (6), driving motor (9) is installed on the top of fixed plate (8), the output shaft rotation of driving motor (9), one end, far away from the driving motor (9), of the lead screw (10) is movably connected with the side wall of the workbench (1), a nut (11) is connected to the surface of the lead screw (10) in a threaded mode, and the top end of the nut (11) is welded with the driving rod (6).

2. The positioning jig for machining according to claim 1, characterized in that: the surface of the driving rod (6) is provided with a fixed rod (7), the fixed rod (7) penetrates through the driving rod (6) to be connected with the two movable rods (5), and the two movable rods (5) are respectively movably connected with the fixed rod (7).

3. The positioning jig for machining according to claim 1, characterized in that: one end fixedly connected with connecting rod (12) of connecting block (4) are kept away from in fly leaf (2), the first removal slider (13) of one end fixedly connected with of fly leaf (2) are kept away from in connecting rod (12), first spout (14) with first removal slider (13) matched with are seted up to the inside wall of workstation (1), and connecting rod (12) are through first removal slider (13) and workstation (1) sliding connection.

4. The positioning jig for machining according to claim 1, characterized in that: the bottom fixedly connected with second removes slider (15) of fly leaf (2), second spout (16) with second removal slider (15) matched with are seted up to the inner chamber bottom surface of workstation (1), and fly leaf (2) are through second removal slider (15) and workstation (1) sliding connection.

5. The positioning jig for machining according to claim 4, characterized in that: the number of the second movable sliding blocks (15) is four, and every two second movable sliding blocks are a group and are respectively arranged on two sides of the bottom of the same movable plate (2).

6. The positioning jig for machining according to claim 1, characterized in that: the inner cavity of the clamping piece (3) is provided with a fixing bolt (17), the inner side wall of the movable plate (2) is provided with a screw hole matched with the fixing bolt (17), and the clamping piece (3) is connected with the movable plate (2) through the fixing bolt (17).

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