Floating positioning tray structure

Abstract

The utility model discloses a floating positioning charging tray structure which comprises a machine tool frame, two spring centering shafts, a charging tray body and buffer springs, the number of the spring centering shafts is two, the spring centering shafts are symmetrically installed on the machine tool frame, buffer grooves are formed in the opposite sides of the machine tool frame and the charging tray body and correspond to the positions of the spring centering shafts, and the buffer springs are arranged in the buffer grooves. The two buffer springs are arranged on the surfaces of the two spring centering shafts in a sleeving mode respectively, the two ends of each buffer spring are clamped in the two opposite buffer grooves respectively, and a first positioning hole is formed in the top end of each spring centering shaft. The floating positioning charging tray structure is reasonable in structural design and convenient to use, a certain floating buffer space can be provided, the situation that the charging tray collides with a machine tool spindle due to overlarge load bearing is effectively prevented, the service life is prolonged, free adjustment and fixation can be conducted according to the size of a workpiece to be clamped, and high practicability is achieved.

Description

Technical Field

[0001] This utility model relates to the field of material tray technology, specifically a floating positioning material tray structure. Background Art

[0002] Currently, most positioning trays on machine tools are fixedly installed. When subjected to large loads, the tray will collide hard with the machine tool spindle without sufficient buffer space, which will affect the service life to some extent. To address this, we propose a floating positioning tray structure to solve the problems mentioned in the background. Utility Model Content

[0003] The purpose of this invention is to provide a floating positioning tray structure to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a floating positioning tray structure, including a machine tool frame, spring centering shafts, a tray body, and buffer springs. The number of spring centering shafts is two and they are symmetrically installed on the machine tool frame. Buffer grooves are provided on opposite sides of the machine tool frame and the tray body, corresponding to the positions of the spring centering shafts. The number of buffer springs is two and they are respectively sleeved on the surfaces of the two spring centering shafts. The two ends of the buffer springs are respectively engaged in the two opposite buffer grooves.

[0005] Furthermore, a first positioning hole is provided at the top end of the spring centering shaft, and a second positioning hole is provided at the top of the material tray body corresponding to the position of the first positioning hole.

[0006] Furthermore, the top of the material tray body is provided with several grooves at equal intervals, and clamping columns are slidably connected in the grooves.

[0007] Furthermore, an electric telescopic column is fixedly installed on the side of the inner wall of the groove, and one end of the electric telescopic column is fixedly connected to the clamping column.

[0008] Furthermore, the clamping column has a cavity inside, and a lifting block is movably connected inside the cavity. A thrust spring is fixedly connected between the top of the lifting block and the top of the inner wall of the cavity. A crossbar is fixedly installed on the outside of the lifting block. The clamping column has a guide groove that communicates with the cavity at the position corresponding to the crossbar. One end of the crossbar passes through the outside of the guide groove and is fixedly connected to a pressure plate.

[0009] Furthermore, a pull rod is fixedly connected to the top of the lifting block and inside the thrust spring, and the top end of the pull rod extends through to the outside of the clamping column and is fixedly connected to a pull handle.

[0010] Furthermore, a guide cover is fixedly connected to the top of the machine tool frame at the position corresponding to the buffer groove by bolts, and a damper is also installed between the machine tool frame and the material tray body.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention places the workpiece to be clamped on top of the tray body. Its own weight can move it downwards. Under the limitation of the spring centering shaft and the guide cover, the damper compresses the buffer spring, providing a certain buffer space and effect. According to the size of the workpiece, multiple electric telescopic columns can be used to drive the clamping column to move, achieving initial clamping. During the adjustment process, the pull handle and pull rod can be lifted upwards, causing the lifting block and pressure plate to move upwards. After releasing the pull handle, the thrust spring pushes the lifting block back to its original position, and the pressure plate can then be used to clamp the workpiece from the top. This floating positioning tray structure has a reasonable structural design, is easy to use, provides a certain floating buffer space, effectively prevents the tray from colliding hard with the machine tool spindle due to excessive load, extends its service life, and can be freely adjusted and fixed according to the size of the workpiece to be clamped, making it highly practical. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0014] Figure 2 This is a three-dimensional structural diagram of the material tray body of this utility model;

[0015] Figure 3 This is a half-sectional three-dimensional structural diagram of the clamping column of this utility model.

[0016] In the diagram: 1 Machine tool frame, 2 Spring centering shaft, 3 Material tray body, 4 Buffer spring, 5 Buffer groove, 6 First positioning hole, 7 Second positioning hole, 8 Groove, 9 Clamping column, 10 Electric telescopic column, 11 Cavity, 12 Lifting block, 13 Thrust spring, 14 Crossbar, 15 Pressure plate, 16 Tie rod, 17 Pull handle, 18 Guide cover, 19 Damper. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3A floating positioning tray structure includes a machine tool frame 1, a spring centering shaft 2, a tray body 3, and buffer springs 4. There are two spring centering shafts 2, which are symmetrically installed on the machine tool frame 1. Buffer grooves 5 are opened on the opposite side of the machine tool frame 1 and the tray body 3, corresponding to the position of the spring centering shaft 2. There are two buffer springs 4, which are respectively sleeved on the surface of the two spring centering shafts 2. The two ends of the buffer springs 4 are respectively engaged in the two opposite buffer grooves 5.

[0019] Specifically, the top end of the spring centering shaft 2 is provided with a first positioning hole 6, and the top of the tray body 3 is provided with a second positioning hole 7 corresponding to the position of the first positioning hole 6. The tray body 3 and the spring centering shaft 2 can be connected by screws through the first positioning hole 6 and the second positioning hole 7.

[0020] Specifically, the top of the tray body 3 is provided with several grooves 8 at equal intervals, and clamping posts 9 are slidably connected in the grooves 8.

[0021] Specifically, an electric telescopic column 10 is fixedly installed on the side of the inner wall of the groove 8, and one end of the electric telescopic column 10 is fixedly connected to the clamping column 9.

[0022] Specifically, the clamping column 9 has a cavity 11 inside, and a lifting block 12 is movably connected inside the cavity 11. A thrust spring 13 is fixedly connected between the top of the lifting block 12 and the top of the inner wall of the cavity 11. A crossbar 14 is fixedly installed on the outside of the lifting block 12. The clamping column 9 has a guide groove that communicates with the cavity at the position corresponding to the crossbar 14. One end of the crossbar 14 passes through the outside of the guide groove and is fixedly connected to a pressure plate 15.

[0023] Specifically, a pull rod 16 is fixedly connected to the top of the lifting block 12 and inside the thrust spring 13, and the top of the pull rod 16 extends through to the outside of the clamping column 9 and is fixedly connected to a pull handle 17.

[0024] Specifically, a guide cover 18 is bolted to the top of the machine tool frame 1 at the position corresponding to the buffer groove 5, and a damper 19 is also installed between the machine tool frame 1 and the material tray body 3.

[0025] The floating positioning tray structure is reasonably designed and easy to use. It provides a certain floating buffer space, which effectively prevents the tray from colliding hard with the machine tool spindle due to excessive load, thus extending its service life. It can also be freely adjusted and fixed according to the size of the workpiece to be clamped, making it highly practical.

[0026] In use, the workpiece to be clamped is placed on top of the tray body 3. Its own weight can drive it to move downward. Under the limit of the spring centering shaft 2 and the guide cover 18, the damper 19 compresses the buffer spring 4, providing a certain buffer space and effect. According to the size of the workpiece, multiple electric telescopic columns 10 can be used to drive the clamping column 9 to move, so as to achieve initial clamping. During the adjustment process, the pull handle 17 and the pull rod 16 can be lifted upward, so that the lifting block 12 and the pressure plate 15 move upward. After the pull handle 17 is released, the thrust spring 13 pushes the lifting block 12 back to its original position, and the pressure plate 15 can be used to press the workpiece from the top.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A floating positioning tray structure, comprising a machine tool frame (1), a spring centering shaft (2), a tray body (3), and a buffer spring (4), characterized in that: The number of spring centering shafts (2) is two and they are symmetrically installed on the machine tool frame (1). The machine tool frame (1) and the material tray body (3) are provided with buffer grooves (5) on opposite sides and corresponding to the positions of the spring centering shafts (2). The number of buffer springs (4) is two and they are respectively sleeved on the surfaces of the two spring centering shafts (2). The two ends of the buffer springs (4) are respectively engaged in the two opposite buffer grooves (5).

2. The floating positioning tray structure according to claim 1, characterized in that: The top end of the spring centering shaft (2) is provided with a first positioning hole (6), and the top of the tray body (3) is provided with a second positioning hole (7) corresponding to the position of the first positioning hole (6).

3. The floating positioning tray structure according to claim 2, characterized in that: The top of the material tray body (3) is provided with several grooves (8) at equal intervals, and a clamping column (9) is slidably connected in the groove (8).

4. The floating positioning tray structure according to claim 3, characterized in that: An electric telescopic column (10) is fixedly installed on the side of the inner wall of the groove (8), and one end of the electric telescopic column (10) is fixedly connected to the clamping column (9).

5. The floating positioning tray structure according to claim 4, characterized in that: The clamping column (9) has a cavity (11) inside. A lifting block (12) is movably connected inside the cavity (11). A thrust spring (13) is fixedly connected between the top of the lifting block (12) and the top of the inner wall of the cavity (11). A crossbar (14) is fixedly installed on the outside of the lifting block (12). The clamping column (9) has a guide groove that communicates with the cavity at the position corresponding to the crossbar (14). One end of the crossbar (14) passes through the guide groove and is fixedly connected to a pressure plate (15).

6. The floating positioning tray structure according to claim 5, characterized in that: A pull rod (16) is fixedly connected to the top of the lifting block (12) and inside the thrust spring (13). The top end of the pull rod (16) extends through to the outside of the clamping column (9) and is fixedly connected to a pull handle (17).

7. The floating positioning tray structure according to claim 6, characterized in that: The A guide cover (18) is bolted to the top of the machine tool frame (1) at the position corresponding to the buffer groove (5). A damper (19) is also installed between the machine tool frame (1) and the tray body (3).

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