Bracket for machining center

Abstract

The utility model discloses a machining center bracket which comprises an operation table, a fixing plate is fixed at the upper end of the operation table, a bracket body is fixed at the upper end of the fixing plate, the bracket body comprises a supporting plate, U-shaped frames arranged symmetrically and lifting assemblies arranged symmetrically, the U-shaped frames are connected to the upper end of the supporting plate in a sliding mode, and the lifting assemblies are connected to the lower end of the supporting plate in a sliding mode. Blocking pieces are fixed to the front end and the rear end of the supporting plate respectively, adjusting sliding ways are symmetrically formed in the upper end of the supporting plate, fixed sliding ways are symmetrically formed in the lower end of the supporting plate, rolling wheels are rotationally connected to the upper ends of the U-shaped frames respectively, sliding blocks are connected to the lower ends of the U-shaped frames respectively, connecting rods are fixedly connected to the opposite ends of the U-shaped frames respectively, and nuts are meshed with the connecting rods respectively. The suspended end of the long rod is supported through the bracket, so that the two ends of the long rod are stressed respectively, then the axis of the long rod is horizontal, and when the rotary table drives the long rod to rotate, the long rod can rotate stably.

Description

Technical Field

[0001] The utility model relates to the technical field of four-axis machining, in particular to a bracket for a machining center. Background Art

[0002] In the field of mechanical processing, there are many auxiliary devices for CNC machining centers, the most common of which is the external rotating four-axis, also called the fourth axis. It consists of an external drive part and an internal bearing part, which can move the workpiece in the three directions of X, Y, and Z, while adding a rotating action to achieve multi-faceted processing.

[0003] The existing four-axis machining device may encounter the following problems during use:

[0004] 1. When the turntable is used to fix a cylindrical long rod, due to the long length of the long rod, the turntable clamps one end of the long rod and the other end of the long rod is suspended. This will cause a large force to be applied to the position where the turntable clamps the long rod. The suspended end will tilt downward due to gravity, causing the axis of the lever to be unable to be horizontal, resulting in the inability to drive the long rod to rotate smoothly when the turntable rotates.

[0005] 2. Due to different four-axis machining centers, the turntable clamping and fixing heights are also different, and brackets of different heights are required to support the long rod. When the turntable heights are different, brackets of different heights need to be replaced repeatedly, which wastes a lot of time. Utility Model Content

[0006] In view of the above problems, the utility model provides a bracket for a machining center; the bracket has the function of supporting materials and is convenient for use with turntables of different heights.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a bracket for a machining center, comprising an operating table, a fixing plate is fixed to the upper end of the operating table, a bracket is fixed to the upper end of the fixing plate, the bracket comprises a support plate, a symmetrically arranged U-shaped frame and a symmetrically arranged lifting assembly, the U-shaped frame is slidably connected to the upper end of the support plate, and the lifting assembly is slidably connected to the lower end of the support plate;

[0008] The front end and the rear end of the support plate are respectively fixed with baffles, the upper end of the support plate is symmetrically provided with adjustment slideways, and the lower end of the support plate is symmetrically provided with fixed slideways;

[0009] The upper ends of the U-shaped frames are rotatably connected to rollers, the lower ends of the U-shaped frames are connected to sliders, and the opposite ends of the U-shaped frames are fixedly connected to connecting rods, and nuts are engaged on the connecting rods;

[0010] The lifting assembly includes a sliding rod, a connecting plate and a fixed clamping block. The upper end of the connecting plate is rotatably connected to the sliding rod, and the lower end of the sliding rod is rotatably connected to the fixed clamping block. The sliding rod is provided with a height adjustment rod along its long side, and a clamping adjustment rod is provided between the two lifting assemblies.

[0011] Preferably, a movable column fixedly connected to the operating table is provided at the rear end of the fixed plate, and a turntable fixedly connected to the operating table is provided at the right end of the fixed plate.

[0012] Preferably, the adjusting slide is T-shaped, the sliding block is T-shaped, the U-shaped frame is slidably connected to the adjusting slide of the support plate through the sliding block, and the connecting rod passes through the blocking piece.

[0013] Preferably, the fixed slide is T-shaped, and T-shaped blocks are symmetrically fixed to the upper ends of the slide rods, and the slide rods are slidably connected to the fixed slide via the T-shaped blocks.

[0014] Preferably, the sliding rod and the fixed clamp block are symmetrically provided with long strip through holes, the connecting plate is two crossed and rotatably connected plates, the connecting plates are symmetrically arranged at the front and rear ends of the sliding rod and the fixed clamp block, the upper and lower ends of the connecting plates are respectively rotatably connected with height adjustment rods, the height adjustment rods are respectively slidably connected in the corresponding long strip through holes of the sliding rod and the fixed clamp block, the height adjustment rod is engaged with the sliding block through a thread, and the height adjustment rod is rotatably connected to the sliding rod.

[0015] Preferably, the height adjustment rod and the clamping adjustment rod are bidirectional threaded rods respectively.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0017] 1. The suspended end of the long rod is supported by the bracket, so that the two ends of the long rod are subjected to force respectively, so that the axis of the long rod is horizontal. When the turntable drives the long rod to rotate, the long rod can rotate smoothly. The long rod is supported and limited between the two rollers, so that the long rod is located between the two rollers. The rolling of the rollers cooperates with the rotation of the long rod, which greatly improves the operation quality and use efficiency compared with the traditional device.

[0018] 2. The overall height of the bracket can be adjusted by cooperating with the connecting plate and the height adjustment rod, so that the device is suitable for turntables of different heights and has stronger applicability. There is no need to replace a new bracket, which saves the time of replacing the bracket and indirectly improves the efficiency. By rotating the clamping adjustment rod to make the two fixed clamps approach each other, the bracket can be fixedly clamped on the fixed plate to fix the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is an overall schematic diagram of the bracket of the utility model;

[0021] Figure 3 This is an exploded schematic diagram of the bracket of the utility model;

[0022] Figure 4 This is an exploded bottom view of the bracket of the utility model;

[0023] Figure 5 It is an overall schematic diagram of the lifting assembly of the utility model.

[0024] Explanations in the figure: 1. operating table; 2. bracket; 21. support plate; 22. U-shaped frame; 23. lifting assembly; 101. fixed plate; 102. movable column; 103. turntable; 211. baffle; 212. adjusting slide; 213. fixed slide; 221. roller; 222. slider; 223. connecting rod; 224. nut; 231. sliding rod; 232. connecting plate; 233. fixed clamp block; 234. sliding block; 235. height adjustment rod; 236. clamping adjustment rod. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0026] See also Figure 1 ,and Figure 2A bracket for a machining center includes an operating table 1, a fixed plate 101 is fixed on the upper end of the operating table 1, and a plurality of grooves are opened on the upper end of the fixed plate 101 along its long side, and the grooves are used for the bracket 2 to be clamped and fixed on the fixed plate 101, and a mobile column 102 fixedly connected to the operating table 1 is provided at the rear end of the fixed plate 101, and the mobile column 102 is an existing device, which is used to move up and down, left and right, front and back, and carry a cutter head for cutting work, and no more details are given here. A turntable 103 fixedly connected to the operating table 1 is provided at the right end of the fixed plate 101, and the turntable 103 is an existing device, which is used to provide rotation, clamp the long rod-shaped material, and drive the material to rotate, so as to realize four Axis processing, a bracket 2 is fixed to the upper end of the fixed plate 101, and the bracket 2 includes a bracket 21, a symmetrically arranged U-shaped frame 22 and a symmetrically arranged lifting assembly 23, the U-shaped frame 22 is slidably connected to the upper end of the bracket 21, and the lifting assembly 23 is slidably connected to the lower end of the bracket 21, and the bracket 2 is clamped on the fixed plate 101 to fix the bracket 2, and the combination of the bracket 21 and the U-shaped frame 22 supports the suspended end of the long rod, so that the two ends of the long rod are respectively subjected to force, thereby making the axis of the long rod horizontal, and the lifting assembly 23 is used to adjust the overall height of the bracket 2, which is convenient for supporting long rods of different diameters, and at the same time makes the device suitable for turntables 103 of different heights, and has stronger applicability.

[0027] See also Figure 2 , Figure 3 and Figure 4 The front and rear ends of the support plate 21 are respectively fixed with baffles 211, and the baffles 211 are slidably connected with the connecting rod 223. The baffles 211 are used to prevent the U-shaped frame 22 from moving, so as to prevent the distance between the two U-shaped frames 22 from being too large, causing the material to fall directly on the upper end of the support plate 21. The upper end of the support plate 21 is symmetrically provided with an adjusting slide 212, and the lower end of the support plate 21 is symmetrically provided with a fixed slide 213. The adjusting slide 212 is T-shaped, and the slider 222 is T-shaped. The U-shaped frame 22 The slider 222 is slidably connected to the adjustment slide 212 of the support plate 21, and the connecting rod 223 passes through the baffle 211. The U-shaped frame 22 is slidably connected to the support plate 21 through the slider 222, so that the distance between the two U-shaped frames 22 can be adjusted. At the same time, the distance between the two U-shaped frames 22 is fixed by the nut 224 to prevent the U-shaped frame 22 from moving after the material is placed on the U-shaped frame 22. The connecting rod 223 and the nut 224 cooperate to achieve the effect of fixing the distance between the U-shaped frames 22.

[0028] See also Figure 2 , Figure 3 and Figure 4The upper ends of the U-shaped frames 22 are rotatably connected with rollers 221, and the rollers 221 support the cylindrical materials of the long rods, converting the sliding friction into rotational friction, reducing the friction between the materials and the rollers 221, and preventing the materials from being worn. The lower ends of the U-shaped frames 22 are respectively connected with sliders 222, and the opposite ends of the U-shaped frames 22 are respectively fixedly connected with connecting rods 223, and nuts 224 are respectively engaged on the connecting rods 223. When the turntable 103 drives the long rod to rotate, the long rod can rotate smoothly, and the long rod is supported and limited between the two rollers 221, so that the long rod is located between the two rollers 221. The rolling of the rollers 221 cooperates with the rotation of the long rod, which greatly improves the operation quality and use efficiency compared with the traditional device.

[0029] See also Figure 3 and Figure 5The lifting assembly 23 includes a slide bar 231, a connecting plate 232 and a fixed clamping block 233. The upper end of the connecting plate 232 is rotatably connected to the slide bar 231, and the lower end of the slide bar 231 is rotatably connected to the fixed clamping block 233. The slide bar 231 is provided with a height adjustment rod 235 along its long side. The connecting plate 232 and the height adjustment rod 235 cooperate to achieve the adjustment of the overall height of the bracket 2, so that the device is suitable for turntables of different heights, and has stronger applicability. There is no need to replace a new bracket 2, which saves the time of replacing the bracket 2 and indirectly improves the efficiency. The two lifting assemblies 23 A clamping adjustment rod 236 is provided between the fixed slideway 213, the fixed slideway 213 is T-shaped, and the upper ends of the slide bars 231 are symmetrically fixed with T-shaped blocks, and the slide bars 231 are slidably connected to the fixed slideway 213 through the T-shaped blocks. Long strip through holes are symmetrically provided in the slide bars 231 and the fixed clamping blocks 233. By rotating the clamping adjustment rod 236, the two fixed clamping blocks 233 are brought closer to each other, so that the bracket 2 is fixedly clamped on the fixed plate 101, and the bracket 2 is fixed. The connecting plates 232 are two crossed and rotatably connected plates, and the connecting plates 232 are symmetrically arranged on the slide bars 231 and the fixed The front and rear ends of the fixed clamp block 233, the connecting plate 232 clamps the sliding rod 231 and the fixed clamp block 233, and when the distance between the two lifting components 23 is adjusted by the clamping adjustment rod 236, the connecting plate 232 is prevented from being separated from the sliding rod 231 and the fixed clamp block 233. The upper and lower ends of the connecting plate 232 are rotatably connected with height adjustment rods 235, and the height adjustment rods 235 are slidably connected to the corresponding long strip through holes of the sliding rod 231 and the fixed clamp block 233, respectively. The sliding block 234 is connected to the long strip through holes of the sliding rod 231 and the fixed clamp block 233. The connecting plate 232 is opened and closed by sliding in the middle, thereby realizing the adjustment of the overall height of the bracket 2. The height adjustment rod 235 is meshed with the sliding block 234 through a thread. The height adjustment rod 235 is rotatably connected to the sliding rod 231. The height adjustment rod 235 and the clamping adjustment rod 236 are respectively two-way threaded rods. The height adjustment rod 235 and the clamping adjustment rod 236 are respectively two-way threaded rods. When the height adjustment rod 235 and the clamping adjustment rod 236 are rotated, the objects meshed at both ends of the height adjustment rod 235 and the clamping adjustment rod 236 are moved in the same direction or in the opposite direction.

[0030] When the utility model is used:

[0031] First, clamp the fixed clamp block 233 in the groove of the fixed plate 101. After the clamping is completed, adjust the distance between the bracket 2 and the turntable 103 so that the distance is slightly smaller than the length of the long cylindrical material. Twist the clamping adjustment rod 236 clockwise to make the two fixed clamp blocks 233 move relative to each other. When the fixed clamp block 233 moves, the slide bar 231 moves along with it. The slide bar 231 moves in the fixed slideway 213 of the support plate 21 through the T-shaped block, and the fixed clamp block 233 clamps and fixes the fixed plate 101.

[0032] Then, the long cylindrical material is fixed on the turntable 103, with one end suspended above the bracket 2, and the nut 224 on the connecting rod 223 is twisted to push the U-shaped frame 22 in reverse, so that the nut 224 fits with the baffle 211 respectively. At this time, the distance between the U-shaped frames 22 is slightly smaller than the diameter of the long cylindrical material;

[0033] Next, the height adjustment rod 235 is twisted clockwise to make the two sliding blocks 234 at the upper end of the connecting plate 232 move relative to each other, and then the connecting plate 232 is rotated to move the supporting plate 21 upward until the roller 221 contacts the outer wall of the material;

[0034] Finally, the turntable 103 and the movable column 102 are started to process the materials.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bracket for a machining center, characterized in that: The operating table (1) comprises a fixing plate (101) fixed at the upper end of the operating table (1), a bracket (2) fixed at the upper end of the fixing plate (101), the bracket (2) comprising a support plate (21), a symmetrically arranged U-shaped frame (22) and a symmetrically arranged lifting assembly (23), the U-shaped frame (22) being slidably connected to the upper end of the support plate (21), and the lifting assembly (23) being slidably connected to the lower end of the support plate (21); The front end and the rear end of the support plate (21) are respectively fixed with baffles (211); the upper end of the support plate (21) is symmetrically provided with adjustment slideways (212); and the lower end of the support plate (21) is symmetrically provided with fixing slideways (213); The upper ends of the U-shaped frames (22) are rotatably connected to rollers (221), the lower ends of the U-shaped frames (22) are connected to sliders (222), and the opposite ends of the U-shaped frames (22) are fixedly connected to connecting rods (223), and nuts (224) are meshed on the connecting rods (223); The lifting assembly (23) comprises a sliding rod (231), a connecting plate (232) and a fixed clamping block (233); the upper end of the connecting plate (232) is rotatably connected to the sliding rod (231); the lower end of the sliding rod (231) is rotatably connected to the fixed clamping block (233); a height adjustment rod (235) is provided along the long side of the sliding rod (231); and a clamping adjustment rod (236) is provided between the two lifting assemblies (23).

2. A bracket for a machining center according to claim 1, characterized in that: A movable column (102) fixedly connected to the operating table (1) is provided at the rear end of the fixed plate (101), and a rotating table (103) fixedly connected to the operating table (1) is provided at the right end of the fixed plate (101).

3. The bracket for a machining center according to claim 1, characterized in that: The adjusting slideway (212) is T-shaped, the sliding block (222) is T-shaped, the U-shaped frame (22) is slidably connected to the adjusting slideway (212) of the support plate (21) via the sliding block (222), and the connecting rod (223) passes through the blocking piece (211).

4. The bracket for a machining center according to claim 1, characterized in that: The fixed slideway (213) is T-shaped, and T-shaped blocks are symmetrically fixed to the upper ends of the slide bars (231), and the slide bars (231) are slidably connected in the fixed slideway (213) via the T-shaped blocks.

5. The bracket for a machining center according to claim 1, characterized in that: The sliding rod (231) and the fixed clamping block (233) are symmetrically provided with long strip through holes. The connecting plate (232) is two crossed and rotatably connected plates. The connecting plate (232) is symmetrically arranged at the front end and the rear end of the sliding rod (231) and the fixed clamping block (233). The upper end and the lower end of the connecting plate (232) are respectively rotatably connected with a height adjustment rod (235). The height adjustment rod (235) is respectively slidably connected in the corresponding long strip through holes of the sliding rod (231) and the fixed clamping block (233). The height adjustment rod (235) is meshed with the sliding block (234) through a thread. The height adjustment rod (235) is rotatably connected to the sliding rod (231).

6. A bracket for a machining center according to claim 5, characterized in that: The height adjustment rod (235) and the clamping adjustment rod (236) are respectively bidirectional threaded rods.

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