Hydraulic base capable of achieving high-precision quick tool replacement

Abstract

The utility model discloses a hydraulic base capable of achieving high-precision quick tool replacement, and relates to the field of tool clamps. Comprising a base body, multiple sets of cylindrical high-pressure oil cavities are formed in the lower end of the base body, the high-pressure oil cavities are communicated through oil channels, the oil channels are communicated with an injection hole and a discharge hole which are formed in the side edge of the base body, and column holes are formed in the top faces of the high-pressure oil cavities and used for allowing column heads at the tops of piston columns to penetrate through. The bottom of the column head of the piston column is connected with a circular piston, and the circular piston can slide up and down relative to the inner wall of the high-pressure oil cavity; the elastic disc is arranged between the circular piston and the top surface of the high-pressure oil cavity in a sleeving manner, and the bottom end of the high-pressure oil cavity is sealed through a bottom cover. Movement of the positioning piston column can be controlled through hydraulic pressure, the device is rapid and convenient to use, the effect of high-precision and rapid workpiece clamping can be achieved, and meanwhile the device is simple in structure and easy to obtain.

Description

Technical Field

[0001] The utility model relates to the field of tooling fixtures, and in particular to a hydraulic base capable of realizing high-precision quick-change tooling. Background Art

[0002] In modern manufacturing, traditional tooling often cannot meet the needs of high-efficiency and high-precision production due to its design and functional limitations. These tooling may have problems such as cumbersome installation, difficult adjustment, and poor compatibility during use, resulting in low production efficiency and increasing the workload of operators.

[0003] For example, the utility model with the publication number CN212553447U in the prior art discloses a fixed base tooling, a base, a workpiece is arranged on the top of the base, a first fixing bolt is threadedly connected to the workpiece, the bottom of the first fixing bolt extends into the base and is threadedly connected to the base, a positioning seat is fixedly installed on one side of the workpiece, a second fixing bolt is threadedly connected to the positioning seat, the bottom of the second fixing bolt extends into the base and is threadedly connected to the base; the utility model can preliminarily fix the workpiece and the base by using the first fixing bolt and the second fixing bolt, and then use the fastening bolt, the first brake rack and the second brake rack to increase the stability of the workpiece and the base. However, although this base is stable, the replacement efficiency is slow, which does not meet the needs of modern enterprises for efficient production.

[0004] In order to solve these problems, there is an urgent need to develop a new type of tooling system, which can not only achieve high-precision positioning and clamping, but also has the characteristics of rapid replacement to meet the needs of frequent changes in product models on the production line. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a high-precision quick-change tooling hydraulic base, which can position the movement of the piston column through hydraulic control. This is not only quick and convenient, but also can achieve the effect of high-precision and quick clamping of workpieces. At the same time, the structure is simple and easy to obtain.

[0006] To achieve the above-mentioned purpose, the present application discloses a hydraulic base capable of realizing high-precision quick-change tooling, comprising: a base body, a plurality of cylindrical high-pressure oil chambers are arranged at the lower end of the base body, each of the high-pressure oil chambers is communicated with each other through an oil channel, and the oil channel is communicated with an injection hole and a discharge hole arranged on the side of the base body, and a column hole is arranged on the top surface of the high-pressure oil chamber to accommodate the column head at the top of the piston column to pass through, and a circular piston is connected to the bottom of the column head of the piston column, and the circular piston is arranged to be able to slide in the up and down directions relative to the inner wall of the high-pressure oil chamber; it also includes an elastic disc, which is sleeved between the circular piston and the top surface of the high-pressure oil chamber, and the bottom end of the high-pressure oil chamber is sealed by a bottom cover.

[0007] Furthermore, the bottom cover is connected to the base body via threads.

[0008] Furthermore, the circular piston is interference fit with the high-pressure oil chamber, and a piston O-ring is provided on the outer edge of the circular piston.

[0009] Furthermore, a main oil seal is provided between the column head and the base body.

[0010] Furthermore, the diameter of the bottom cover is larger than the inner diameter of the high-pressure oil chamber, and a planar sealing O-ring is provided between the bottom cover and the base body.

[0011] Furthermore, the high-pressure oil chambers are arranged in four groups, and the four groups of high-pressure oil chambers are arranged at intervals at the four corners of the base body.

[0012] Beneficial effects of the technical solution of the utility model:

[0013] The present application sets a high-pressure oil chamber connected to the oil channel on the base, sets a piston column and an elastic disc for returning the piston column to its original position in the high-pressure oil chamber, and realizes that when the high-pressure oil is injected from the oil hole, the high-pressure oil chamber is filled with high-pressure oil, and the piston column moves upward under the action of oil pressure and compresses the elastic gasket, so that the four column heads move outward for high-precision tool clamping. Conversely, when the high-pressure oil is depressurized, the piston column moves downward under the elastic force of the double elastic discs, thereby releasing the activity restriction of the tooling, thereby releasing the tooling.

[0014] This design uses the principle of hydraulic clamping and elastic body reset to unload force, completes the up and down movement of the piston column, completes clamping and unloading. Hydraulic clamping is reliable and stable, the elastic disc pressure is long-lasting, saves space and is easy to maintain later. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 A schematic structural diagram of a hydraulic base in one embodiment of the utility model is shown;

[0017] Figure 2 A cross-sectional view showing the location of the high pressure oil chamber of the base body;

[0018] Figure 3 A cross-sectional perspective view showing the location of the high-pressure oil chamber.

[0019] Among them, 1. base body, 2. high-pressure oil chamber, 3. oil channel, 4. injection hole, 5. discharge hole, 6. column hole, 7. piston column, 8. elastic disc, 9. bottom cover, 10. main oil seal, 11. flat sealing O-ring, 21. top surface, 71. column head, 72. round piston, 73. piston O-ring. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] For examples, see Figure 1-3 A hydraulic base capable of realizing high-precision quick-change tooling comprises: a base body 1, a plurality of cylindrical high-pressure oil chambers 2 are arranged at the lower end of the base body, each of the high-pressure oil chambers 2 is communicated with each other through an oil channel 3, the oil channel 3 is communicated with an injection hole 4 and a discharge hole 5 arranged on the side of the base body, a column hole 6 is arranged on the top surface 21 of the high-pressure oil chamber for accommodating a column head 71 at the top of a piston column 7 to pass through, a circular piston 72 is connected to the bottom of the column head 71 of the piston column, and the circular piston is arranged to be able to slide in the up and down directions relative to the inner wall of the high-pressure oil chamber; and an elastic disc 8 is also included, which is sleeved between the circular piston and the top surface 21 of the high-pressure oil chamber, and the bottom end of the high-pressure oil chamber is sealed by a bottom cover 9.

[0022] As a preferred embodiment, the bottom cover is connected to the base body via threads, which can facilitate and quickly maintain and replace components in the high-pressure oil chamber.

[0023] More preferably, the circular piston is interference fit with the high-pressure oil chamber, and a piston O-ring 73 is provided on the outer edge of the circular piston. A main oil seal 10 is provided between the column head and the base body. The bottom cover has a diameter greater than the inner diameter of the high-pressure oil chamber, and a flat sealing O-ring 11 is provided between the bottom cover and the base body. The arrangement of various sealing rings can isolate hydraulic oil from cutting fluid, improve sealing, oil sealing and pressure sealing, and stabilize the high-pressure oil pressure.

[0024] As a specific example, refer to Figure 1 The high-pressure oil chambers are arranged in four groups, and the four groups of high-pressure oil chambers are arranged at intervals at the four corners of the base body.

[0025] 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 hydraulic base capable of realizing high-precision quick-change tooling, characterized in that: include: A base body (1), wherein a plurality of groups of cylindrical high-pressure oil chambers (2) are arranged at the lower end of the base body, each of the high-pressure oil chambers (2) is communicated with each other through an oil passage (3), and the oil passage (3) is communicated with an injection hole (4) and a discharge hole (5) arranged on the side of the base body, and a column hole (6) is arranged on the top surface (21) of the high-pressure oil chamber for accommodating a column head (71) at the top of a piston column (7) to pass through, and a circular piston (72) is connected to the bottom of the column head (71) of the piston column, and the circular piston is arranged to be able to slide in an up and down direction relative to the inner wall of the high-pressure oil chamber; and an elastic disc (8) is also included, which is sleeved between the circular piston and the top surface (21) of the high-pressure oil chamber, and the bottom end of the high-pressure oil chamber is sealed by a bottom cover (9).

2. A hydraulic base capable of realizing high-precision quick-change tooling according to claim 1, characterized in that: The bottom cover is connected to the base body via threads.

3. The hydraulic base capable of realizing high-precision quick-change tooling according to claim 1, characterized in that: The circular piston is interference-fitted with the high-pressure oil chamber, and a piston O-ring (73) is provided on the outer edge of the circular piston.

4. The hydraulic base capable of realizing high-precision quick-change tooling according to claim 1, characterized in that: A main oil seal (10) is provided between the column head and the base body.

5. The hydraulic base capable of realizing high-precision quick-change tooling according to claim 1, characterized in that: The diameter of the bottom cover is greater than the inner diameter of the high-pressure oil chamber, and a planar sealing O-ring (11) is provided between the bottom cover and the base body.

6. The hydraulic base capable of realizing high-precision quick-change tooling according to claim 1, characterized in that: The high-pressure oil chambers are arranged in four groups, and the four groups of high-pressure oil chambers are arranged at intervals at the four corners of the base body.

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