Machining tool for reducing workpiece deformation

Abstract

The machining tool comprises a cross plate, four second installation grooves are coaxially formed in the outer surface of the cross plate at equal angles, threaded rods are rotatably installed in the second installation grooves, installation bases are installed on the outer surfaces of the threaded rods, and the installation bases are in sliding connection with the inner walls of the second installation grooves. An arc-shaped clamping plate is arranged at the end of the mounting base, a first mounting groove is formed in the middle of the surface of the cross plate, and a clamping mechanism capable of driving the four threaded rods to rotate at the same time is arranged in the first mounting groove. The clamping mechanism drives the four arc-shaped clamping plates to clamp the outer surface of the thin-wall barrel-shaped workpiece at the same time to be fixed, the thin-wall barrel-shaped workpiece can be subjected to uniform clamping force, then the four arc-shaped clamping plates are fixed through the three-jaw chuck, the thin-wall barrel-shaped workpiece can be prevented from being directly subjected to local clamping force of the three-jaw chuck, and the clamping efficiency of the thin-wall barrel-shaped workpiece is improved. Therefore, the situation that the thin-wall barrel-shaped workpiece deforms can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field, concretely is a kind of machining tool for reducing workpiece deformation. BACKGROUND

[0002] Mechanical processing refers to the process of removing material, changing its shape, size or surface quality by mechanical equipment on workpiece, to achieve product design requirements. This process is widely used in manufacturing and industrial production, and common processing methods include turning, milling, drilling, grinding, etc. When processing workpiece, the workpiece needs to be fixed first.

[0003] When processing thin-walled barrel-shaped workpieces, directly using three-jaw chuck for clamping can easily cause local pressure to be too large, resulting in workpiece deformation, and during processing, uneven stress often causes workpiece deformation, affecting the precision and quality of the final product. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of machining tool for reducing workpiece deformation, effectively solve the problem raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme.

[0006] A kind of machining tool for reducing workpiece deformation, including cross plate, four second installation grooves are evenly arranged on the outer surface of cross plate, threaded rod is rotatably installed in the second installation groove, threaded rod is installed on the outer surface of threaded rod, and the inner wall of second installation groove is slidably connected with installation seat, the end of installation seat is provided with arc clamping plate, the middle part of cross plate surface is provided with first installation groove, and clamping mechanism capable of simultaneously driving four threaded rods to rotate is arranged in the first installation groove.

[0007] Further, the clamping mechanism includes a rotating shaft rotatably installed in the first installation groove, a driving bevel gear is installed on the outer surface of the rotating shaft, the end of the four threaded rods is penetrated into the first installation groove and a driven bevel gear is installed, and the driving bevel gear is meshingly connected with the four driven bevel gears.

[0008] Further, two vertical blocks are installed on the outer surface of the cross plate, a worm is rotatably installed between the two vertical blocks, a worm wheel is installed on the top of the rotating shaft, and the worm wheel is meshingly connected with the worm.

[0009] Further, the end of the worm is provided with an internal hexagonal groove.

[0010] Further, angle blocks are arranged at the four corners of the cross plate, and the angle blocks and the cross plate are of an integral structure.

[0011] Further, the end of the mounting base is provided with a connecting groove, and the outer surface of the arc-shaped clamping plate is provided with a connecting block.

[0012] Compared with the prior art, the utility model has the advantages as follows.

[0013] 1. The utility model discloses a four arc-shaped clamping plates are simultaneously clamped on the outer surface of the thin-walled barrel-shaped workpiece and fixed through the clamping mechanism, and the four arc-shaped clamping plates are combined together to form a barrel-shaped structure, so that the thin-walled barrel-shaped workpiece can be evenly clamped, then the four arc-shaped clamping plates are fixed through the three-jaw chuck, the thin-walled barrel-shaped workpiece can be prevented from being directly subjected to the local clamping force of the three-jaw chuck, the deformation of the thin-walled barrel-shaped workpiece can be avoided, and the arc-shaped clamping plate can support the thin-walled barrel-shaped workpiece during the machining process, so that the stress distribution in the workpiece can be balanced, the deformation caused by uneven stress can be avoided, and the precision and quality of the final product can be ensured.

[0014] 2. The utility model discloses a cross plate can be repeatedly used, and only the arc-shaped clamping plate needs to be replaced, so that the use cost is reduced. DRAWINGS

[0015] Figure 1 It is the whole structure perspective schematic diagram of the utility model;

[0016] Figure 2 It is the front view structure schematic diagram of the utility model;

[0017] Figure 3 It is the structure schematic diagram of the arc-shaped clamping plate in the utility model;

[0018] Figure 4 It is the structure schematic diagram of the cross plate in the utility model;

[0019] Figure 5 It is the structure schematic diagram of the rotating shaft in the utility model.

[0020] In the drawing: 100, cross plate;101, first installation groove;102, second installation groove;103, threaded rod;104, mounting base;105, arc-shaped clamping plate;200, clamping mechanism;201, rotating shaft;202, driving bevel gear;203, driven bevel gear;300, vertical block;301, worm;302, worm wheel;400, internal hexagonal groove;500, angle block;600, connecting groove;601, connecting block. DETAILED DESCRIPTION

[0021] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0022] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection", "installation" should be understood in a broad sense, for example, "connection" can be detachable connection, or can be non-detachable connection; can be direct connection, or can be indirect connection through an intermediate medium. In addition, "communication" can be direct communication, or can be indirect communication through an intermediate medium. Among them, "fixing" means connecting with each other and the relative positional relationship after connection does not change. The orientation terms mentioned in the embodiments of the present application, such as "inner", "outer", "top", "bottom", etc., are only the direction of the drawings, therefore, the orientation terms used are for better and clearer illustration and understanding of the embodiments of the present application, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the embodiments of the present application.

[0023] In the embodiments of the present application, the terms "first", "second" are only used for description purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features.

[0024] Please refer to Figures 1-5 The machining tool provided by the present application can reduce the deformation of the workpiece.

[0025] In use, the thin-walled barrel-shaped workpiece is placed between the four arc-shaped clamping plates 105, and then the clamping mechanism 200 is used to simultaneously drive the four threaded rods 103 to rotate. Since the mounting seat 104 is in sliding connection with the inner wall of the second mounting groove 102, it plays a limiting role, so it can drive the mounting seat 104 to move along the length direction of the threaded rod 103, and drive the four arc-shaped clamping plates 105 to clamp the outer surface of the thin-walled barrel-shaped workpiece. At this time, the four arc-shaped clamping plates 105 are combined together to form a barrel-shaped structure, which can make the thin-walled barrel-shaped workpiece receive uniform clamping force. Then the four arc-shaped clamping plates 105 are fixed by the three-jaw chuck, which can avoid the thin-walled barrel-shaped workpiece directly receiving local clamping force from the three-jaw chuck, so as to avoid the deformation of the thin-walled barrel-shaped workpiece. In the processing process, the arc-shaped clamping plate 105 also supports the thin-walled barrel-shaped workpiece, which helps to balance the stress distribution inside the workpiece, avoids deformation caused by uneven stress, and guarantees the precision and quality of the final product. In addition, during milling, the cross plate 100 can also be clamped and fixed by using clamps other than the three-jaw chuck, such as flat-nose pliers, which can still achieve the fixation of the thin-walled barrel-shaped workpiece.

[0026] Preferably, the clamping mechanism 200 comprises a rotating shaft 201 rotatably installed in the first mounting groove 101, and a driving bevel gear 202 is installed on the outer surface of the rotating shaft 201. The ends of the four threaded rods 103 penetrate into the first mounting groove 101 and are provided with driven bevel gears 203. The driving bevel gear 202 is in meshing connection with the four driven bevel gears 203.

[0027] When the rotating shaft 201 is rotated, the driving bevel gear 202 is rotated. Since the driving bevel gear 202 is in meshing connection with the four driven bevel gears 203, it can simultaneously drive the four threaded rods 103 to rotate.

[0028] Preferably, two vertical blocks 300 are installed on the outer surface of the cross plate 100, and a worm 301 is rotatably installed between the two vertical blocks 300. A worm wheel 302 is installed on the top of the rotating shaft 201, and the worm wheel 302 is in meshing connection with the worm 301.

[0029] When the worm 301 is rotated, the worm wheel 302 is rotated, and the rotating shaft 201 is rotated. Through the arrangement of the worm 301 and the worm wheel 302, the clamping effect can be achieved with less force, saving physical strength. Moreover, the worm 301 and the worm wheel 302 have self-locking property, which can guarantee the clamping effect of the arc-shaped clamping plate 105 on the thin-walled barrel-shaped workpiece during processing.

[0030] Preferably, an internal hexagonal groove 400 is formed in the end of the worm 301.

[0031] A hexagonal wrench can be inserted into the internal hexagonal groove 400 to drive the worm 301 to rotate.

[0032] Preferably, the four corners of the cross plate 100 are provided with corner blocks 500, and the corner blocks 500 are integrated with the cross plate 100.

[0033] Through the arrangement of the corner blocks 500, the structural strength of the four corners of the cross plate 100 can be enhanced, the cross plate 100 is not easy to deform, and the service life is improved.

[0034] Preferably, the end of the mounting seat 104 is provided with a connecting groove 600, and the outer surface of the arc-shaped clamping plate 105 is provided with a connecting block 601, which is fixedly installed in the connecting groove 600 through bolts.

[0035] The arc-shaped clamping plate 105 and the mounting seat 104 are installed together through bolts, the replaceable purpose of the arc-shaped clamping plate 105 is achieved, different sizes of arc-shaped clamping plates 105 can be replaced, and different sizes of thin-walled barrel-shaped workpieces can be clamped and fixed, so that the flexibility is high.

[0036] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A machining tool for reducing deformation of a workpiece, comprising a cross plate (100), characterized in that: four second mounting grooves (102) are formed on the outer surface of the cross plate (100) at equal angles along the coaxial line, a threaded rod (103) is rotatably mounted in the second mounting groove (102), an installation seat (104) is mounted on the outer surface of the threaded rod (103), the installation seat (104) is in sliding connection with the inner wall of the second mounting groove (102), an arc-shaped clamping plate (105) is arranged at the end of the installation seat (104), a first mounting groove (101) is formed in the middle of the surface of the cross plate (100), and a clamping mechanism (200) capable of simultaneously driving the rotation of the four threaded rods (103) is arranged in the first mounting groove (101).

2. The machining tool for reducing deformation of a workpiece according to claim 1, characterized in that: the clamping mechanism (200) comprises a rotating shaft (201) rotatably mounted in the first mounting groove (101), a driving bevel gear (202) is mounted on the outer surface of the rotating shaft (201), the end of each of the four threaded rods (103) penetrates into the first mounting groove (101) and is provided with a driven bevel gear (203), and the driving bevel gear (202) is in meshing connection with the four driven bevel gears (203).

3. The machining tool for reducing deformation of a workpiece according to claim 2, characterized in that: two vertical blocks (300) are mounted on the outer surface of the cross plate (100), a worm (301) is rotatably mounted between the two vertical blocks (300), a worm wheel (302) is mounted at the top of the rotating shaft (201), and the worm wheel (302) is in meshing connection with the worm (301).

4. The machining tool for reducing deformation of a workpiece according to claim 3, characterized in that: an internal hexagonal groove (400) is formed at the end of the worm (301).

5. The machining tool for reducing deformation of a workpiece according to claim 3, characterized in that: an angle block (500) is arranged at each of the four corners of the cross plate (100), and the angle block (500) and the cross plate (100) are in an integral structure.

6. The machining tool for reducing deformation of a workpiece according to claim 1, characterized in that: a connecting groove (600) is formed at the end of the installation seat (104), a connecting block (601) is mounted on the outer surface of the arc-shaped clamping plate (105), and the connecting block (601) is fixedly installed in the connecting groove (600) through bolts.

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