CN220637064U - Workpiece positioning assembly of cutting machine tool - Google Patents

Abstract

The utility model relates to the technical field of workpiece positioning of machine tools, in particular to a workpiece positioning assembly of a cutting machine tool. The technical proposal comprises: the machine tool comprises a machine tool base and a machine tool main body, wherein the machine tool main body is arranged at the middle position of the upper end of the machine tool base, a processing groove is formed in the machine tool main body, a sliding groove is formed in the upper end of the machine tool base, a sliding block is connected in the sliding groove in a sliding mode, an adsorption disc, a plane chuck and an arc chuck are arranged at the upper end of the sliding block, and a switching mechanism and a positioning mechanism are respectively arranged between two sides of the sliding groove and the sliding block. According to the utility model, by utilizing the sliding of the sliding block, the adsorption disc, the plane chuck or the arc chuck can be stretched into the processing groove according to the shape of the processed workpiece, and the corresponding selection switching can be performed according to different shapes of the workpiece, so that the practicability of the positioning assembly is improved.

Description

A workpiece positioning component for a cutting machine tool

Technical field

The utility model relates to the technical field of workpiece positioning of machine tools, and in particular to a workpiece positioning assembly of a cutting machine tool.

Background technique

A cutting machine tool is a machine tool that can process metal, wood, plastic and other materials through cutting, milling, drilling, grinding, etc. It is mainly used in mechanical processing, mold manufacturing, aerospace, automobile manufacturing, and electronic manufacturing in the manufacturing industry. and other fields.

During the cutting process of machine tools, ensuring the stability and accurate position of the workpiece is the basis for precise processing of the workpiece. Therefore, it plays an important role in the positioning of the workpiece. In this case, the common workpiece positioning is to use a splint. Mutual clamping ensures the stability of the workpiece, and within a single cutting machine tool, there is often only a single method for clamping and positioning the workpiece. It is difficult to fix different workpieces with different clamping structures, such as spherical or arc-shaped workpieces. For clamping, if you still use flat splints for clamping, its stability will decrease, and when clamping a workpiece with a fragile or easily deformed outer surface, if you still use clamping and fixation, it will easily cause damage to the workpiece, so it is necessary to Design a workpiece positioning component that can be quickly replaced according to the workpiece shape or processing characteristics.

Utility model content

The purpose of this utility model is to propose a workpiece positioning assembly for a cutting machine tool in view of the problems existing in the background technology.

The technical solution of the present invention: a workpiece positioning assembly for a cutting machine tool, including a machine tool base and a machine tool main body. The machine tool main body is installed at the middle position of the upper end of the machine tool base. A processing groove is provided in the machine tool main body. The upper end of the machine tool base A sliding groove is provided, and a sliding block is slidably connected in the sliding groove. An adsorption disc, a flat chuck and an arc chuck are installed on the upper end of the sliding block. Switches are respectively provided between both sides of the sliding groove and the sliding block. Institutions and positioning institutions.

Preferably, the switching mechanism includes a side plate and a servo motor, the side plate is fixed at the middle position of the side wall of the sliding block, the side wall of the sliding groove has a driving groove at a position corresponding to the side plate, and the The side plate is slidingly connected in the driving groove, and a threaded rod is rotatably connected in the driving groove. The threaded rod passes through the side plate and is threadedly connected with the side plate.

Preferably, the servo motor is fixed at the end of the machine tool base and is positioned corresponding to the threaded rod. The end of the threaded rod extends out of the drive groove and is fixedly connected to the output end of the servo motor.

Preferably, the positioning mechanism includes a positioning groove and a positioning plate. The positioning groove is opened on the side wall of the sliding block and its position corresponds to the adsorption plate, the flat clamping plate and the arc clamping plate. The positioning plate is installed on the sliding groove. The middle position of the side wall.

Preferably, a telescopic groove is provided on the side wall of the sliding groove and corresponding to the positioning plate. A cylinder is installed in the telescopic groove. The output end of the cylinder and the positioning plate are fixed at one end in the telescopic groove.

Preferably, one end of the positioning plate extending out of the telescopic groove is equipped with balls to reduce the friction force when the positioning plate resists the side wall of the sliding block.

Preferably, the adsorption disc is evenly provided with adsorption holes, and is equipped with a matching vacuum pump. The vacuum pump is used to evacuate the adsorption disc to a vacuum, and then the adsorption holes are used to adsorb and fix the surface workpiece. The flat chuck and A pair of horizontal splints and an arc splint are respectively installed on the arc chuck. The horizontal splint or the arc splint is moved to one side to achieve clamping, and the workpiece is clamped and fixed.

Compared with the existing technology, this utility model has the following beneficial technical effects: by using the sliding of the sliding block, the adsorption disc, flat chuck or arc chuck can be extended into the processing groove according to the shape of the workpiece to be processed. The appearance can be selected and switched accordingly to increase the practicality of the positioning component.

Description of drawings

Figure 1 is a schematic diagram of the combined structure of the machine tool base and the machine tool body of the present invention;

Figure 2 is a schematic cross-sectional structural view of the machine tool base of the present invention;

Figure 3 is a schematic diagram of the appearance structure of the sliding block shaft side of the utility model.

Reference signs: 1. Machine tool base; 11. Sliding groove; 2. Machine tool body; 21. Processing groove; 3. Sliding block; 31. Adsorption plate; 32. Flat chuck; 33. Arc chuck; 4. Switching Mechanism; 41. Side plate; 42. Drive slot; 43. Threaded rod; 44. Servo motor; 5. Positioning mechanism; 51. Positioning slot; 52. Positioning plate; 53. Telescopic slot; 54. Cylinder.

Detailed ways

The technical solution of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Example

As shown in Figures 1-3, the utility model proposes a workpiece positioning assembly for a cutting machine tool, which includes a machine tool base 1 and a machine tool main body 2. The machine tool main body 2 is installed at the middle position of the upper end of the machine tool base 1, and a processing machine is provided inside the machine tool main body 2. Slot 21, the upper end of the machine tool base 1 is provided with a sliding slot 11, and a sliding block 3 is slidably connected in the sliding slot 11. The upper end of the sliding block 3 is equipped with an adsorption disc 31, a flat chuck 32 and an arc chuck 33. On both sides of the sliding slot 11 A switching mechanism 4 and a positioning mechanism 5 are respectively provided with the sliding block 3. The adsorption disc 31 is evenly provided with adsorption holes and is equipped with a matching vacuum pump. The flat chuck 32 and the arc chuck 33 are respectively equipped with a For horizontal splints and curved splints.

The switching mechanism 4 includes a side plate 41 and a servo motor 44. The side plate 41 is fixed at the middle position of the side wall of the sliding block 3. A drive slot 42 is provided on the side wall of the sliding groove 11 and corresponding to the side plate 41. The side plate 41 is slidingly connected in the drive groove 42, and a threaded rod 43 is rotatably connected in the drive groove 42. The threaded rod 43 passes through the side plate 41 and is threadedly connected with the side plate 41. The servo motor 44 is fixed at the end of the machine tool base 1 and in position. Corresponding to the threaded rod 43, the end of the threaded rod 43 extends out of the drive groove 42 and is fixedly connected to the output end of the servo motor 44. The output end of the servo motor 44 is driven to drive the threaded rod 43 to rotate, thereby causing the side plate 41 to slide. , and finally drives the sliding block 3 to slide.

The positioning mechanism 5 includes a positioning groove 51 and a positioning plate 52. The positioning groove 51 is opened on the side wall of the sliding block 3 and its position corresponds to the suction plate 31, the flat clamp 32 and the arc clamp 33. The positioning plate 52 is installed in the sliding groove. In the middle of the side wall of 11, a telescopic groove 53 is provided on the side wall of the sliding groove 11 and corresponding to the positioning plate 52. A cylinder 54 is installed in the telescopic groove 53. The output end of the cylinder 54 and the positioning plate 52 are fixed at one end in the telescopic groove 53. The positioning plate 52 extends out of the telescopic groove 53 and is installed with balls at one end. The expansion and contraction of the output end of the cylinder 54 can be used to drive the positioning plate 52 to expand and contract. When the positioning plate 52 extends, it can be inserted into the positioning groove 51 to ensure that the sliding block 3 can The designated position in the sliding groove 11 is fixed and remains stable. At the same time, after the positioning plate 52 extends out of the positioning groove 51, the sliding block 3 can slide freely in the sliding groove 11.

In this embodiment, the entire device is first connected to the external power supply, and then the fixture is selected according to the shape of the workpiece to be processed. When processing the arc workpiece, the arc clamping plate on the arc chuck 33 can be used for clamping and fixing, ensuring that For its clamping stability, when processing flat workpieces, the horizontal splints on the flat chuck 32 are used for clamping and fixing. When processing some workpieces with fragile outer surfaces, the adsorption disc 31 can be used for surface adsorption and fixation. Complete the switching of the positioning component, thereby achieving the purpose of improving the practicality of the positioning component. In this process, the drive of the output end of the servo motor 44 is used to drive the threaded rod 43 to rotate, thereby causing the side plate 41 to slide, and finally drive the sliding block 3 Sliding is performed so that the adsorption plate 31, flat chuck 32 or arc chuck 33 holding the workpiece enters the processing groove 21 for cutting processing. During this process, the positioning plate 52 can be driven by the expansion and contraction of the output end of the cylinder 54. When the positioning plate 52 extends out, it can be inserted into the positioning groove 51 to ensure that the sliding block 3 can be fixed at the designated position in the sliding groove 11 and remain stable. At the same time, after the positioning plate 52 extends out of the positioning groove 51, The sliding block 3 can slide freely in the sliding groove 11 to ensure the accuracy of the positioning of the sliding block 3 .

The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant enlightenment of the above-mentioned embodiments, those skilled in the art can make various alternative improvements to the above-mentioned specific embodiments. and combination.

Claims (7)

1. A workpiece positioning assembly for a cutting machine tool, including a machine tool base (1) and a machine tool main body (2). The machine tool main body (2) is installed at the upper middle position of the machine tool base (1). Inside the machine tool main body (2) A processing slot (21) is provided, which is characterized in that: a sliding slot (11) is provided at the upper end of the machine tool base (1), and a sliding block (3) is slidably connected in the sliding slot (11). The sliding block (3) 3) The upper end is equipped with an adsorption plate (31), a flat chuck (32) and an arc chuck (33). There are switching mechanisms (4) between both sides of the sliding groove (11) and the sliding block (3). ) and positioning mechanism (5). 2. A workpiece positioning assembly for a cutting machine tool according to claim 1, characterized in that the switching mechanism (4) includes a side plate (41) and a servo motor (44), and the side plate (41) ) is fixed at the middle position of the side wall of the sliding block (3). A driving slot (42) is provided on the side wall of the sliding groove (11) and corresponding to the side plate (41). The side plate (41) slides Connected in the driving groove (42), a threaded rod (43) is rotatably connected in the driving groove (42), and the threaded rod (43) passes through the side plate (41) and is threaded with the side plate (41) connect. 3. A workpiece positioning assembly for a cutting machine tool according to claim 2, characterized in that the servo motor (44) is fixed at the end of the machine tool base (1) and is positioned corresponding to the threaded rod (43), so The end of the threaded rod (43) extends out of the drive groove (42) and is fixedly connected to the output end of the servo motor (44). 4. A workpiece positioning assembly for a cutting machine tool according to claim 1, characterized in that the positioning mechanism (5) includes a positioning groove (51) and a positioning plate (52), and the positioning groove (51) is opened The positioning plate (52) is installed on the side wall of the sliding block (3) and corresponds to the adsorption plate (31), the flat chuck (32) and the arc chuck (33) one by one. The middle position of the wall. 5. A workpiece positioning assembly for a cutting machine tool according to claim 4, characterized in that a telescopic groove (53) is provided on the side wall of the sliding groove (11) and corresponding to the positioning plate (52), so A cylinder (54) is installed in the telescopic groove (53), and the output end of the cylinder (54) and the positioning plate (52) are fixed at one end in the telescopic groove (53). 6. A workpiece positioning assembly for a cutting machine tool according to claim 5, characterized in that a ball is installed at one end of the positioning plate (52) extending out of the telescopic groove (53). 7. A workpiece positioning assembly for a cutting machine tool according to claim 1, characterized in that the adsorption plate (31) is evenly provided with adsorption holes and is equipped with a matching vacuum pump, and the flat chuck A pair of horizontal splints and arc splints are respectively installed on (32) and arc chuck (33).