CN117102928A - U-turn wheel clamp - Google Patents

Abstract

This application discloses a U-turn wheel clamp, which includes: a base, a hydraulic unit, and a clamping unit; a placement slot is provided on the base, and the opening size of the placement slot gradually increases upward; the hydraulic unit includes: an energy storage device, Pressure reducing valve, connecting valve, and pressure maintaining valve; the clamping unit includes: an oil cylinder, an oil cylinder pressure plate, and a profiling pressure head; the energy storage device, the pressure reducing valve, the connecting valve, and the pressure maintaining valve The hydraulic unit is interconnected to form the hydraulic unit, and the hydraulic unit controls the expansion and contraction of the oil cylinder; one end of the oil cylinder pressure plate is connected to the oil cylinder, and the other end is connected to the profiling pressure head; the expansion and contraction of the oil cylinder controls the imitation pressure head. The shaped pressure head clamps and relaxes the U-turn wheel. By setting up a movable profiling pressure head, when it is necessary to process and clamp, the pressure head can keep the U-turn wheel clamped and fixed through the cylinder pressure, and the U-turn wheel can be clamped quickly and conveniently, saving the need for clamping corrections. time, improving processing efficiency.

Description

U-turn wheel clamp

Technical field

The invention belongs to the technical field of tobacco equipment processing, and specifically relates to a U-turn wheel clamp.

Background technique

In the cigarette production process, the U-turn wheel refers to a rotating component located in the tobacco supply system of the cigarette machine. Its function is to unload the tobacco leaves from the paper belt and transfer them to the next processing step.

Therefore, the manufacturing of U-turn wheels is a complex process that requires fine processing technology and high-quality equipment to ensure the quality and reliability of the final product. In particular, the machining accuracy requirements for the outer circle accuracy of the U-turn wheel are very high.

The traditional processing method is to clamp the outer edge of the U-turn wheel to keep it fixed. At the same time, when processing the U-turn wheel, because the middle part of the U-turn wheel is a hollow structure, its resistance to deformation under the action of external forces is poor. The hollow structure is difficult to install during assembly. The extrusion force during clamping will easily cause deformation, which will cause the U-turn wheel to deform and require repositioning, or even cause damage and prevent normal processing.

Contents of the invention

In order to solve the problem in the above-mentioned prior art that when the U-turn wheel is processed, the hollow structure is difficult to clamp, resulting in low processing efficiency. The present invention provides a high-precision clamping fixture for the U-turn wheel to ensure the clamping effect error during the processing. Small to meet high-precision machining requirements, and at the same time to facilitate timely detection of whether the fixture is deformed under the action of cutting force;

The invention provides a U-turn wheel clamp. The specific technical solution is as follows, including: a base, a hydraulic unit, and a clamping unit;

A placement slot is provided on the base, and the opening size of the placement slot gradually increases upward;

The hydraulic unit includes: an energy accumulator, a pressure reducing valve, a coupling valve, and a pressure maintaining valve;

The clamping unit includes: an oil cylinder, an oil cylinder pressure plate, and a profiling pressure head;

The energy accumulator, the pressure reducing valve, the coupling valve, and the pressure maintaining valve are connected with each other to form the hydraulic unit, and the hydraulic unit controls the expansion and contraction of the oil cylinder;

One end of the oil cylinder pressure plate is connected to the oil cylinder, and the other end is connected to the profiling pressure head;

The expansion and contraction of the oil cylinder controls the profiling pressure head to clamp and relax the U-turn wheel.

Preferably, the oil cylinder and the oil cylinder pressure plate are hingedly connected through a pressure plate axis pin.

Preferably, auxiliary support units are also provided on both sides of the base, and the auxiliary support units include: auxiliary support cylinders and auxiliary support cylinder bases;

One end of the auxiliary support cylinder is connected to the auxiliary support cylinder base, and the other end is in contact with the outer surface of the U-turn wheel.

Preferably, the bottom of the placement groove is also provided with positioning pins.

Preferably, a clamp heightening pad is connected to the bottom of the base, and the clamp heightening pad isolates the base from the hydraulic unit;

An oil cylinder gasket is also connected to the bottom of the oil cylinder, and the oil cylinder gasket isolates the oil cylinder from the hydraulic unit.

Preferably, the hydraulic unit further includes a hydraulic oil gauge.

Preferably, the hydraulic unit further includes a manual pressure reducing switch.

Preferably, several bases are provided on the clamp heightening pad, and each base is provided with: the clamping unit and the auxiliary support unit.

Preferably, the bottom of the U-turn wheel clamp is further provided with a clamp base plate, and the base, the hydraulic unit, and the clamping unit are all arranged on the clamp base plate.

Preferably, the U-turn wheel clamp is installed on the machine tool workbench through the clamp base plate.

In order to solve the problems in the current prior art that the U-turn wheel is difficult to clamp and the positioning reference is difficult to correct; the present invention is provided with a movable profiling pressure head. When processing and clamping is required, the pressure head can be kept aligned through the oil cylinder pressure. The U-turn wheel is clamped and fixed, which can quickly and conveniently clamp the U-turn wheel, saving clamping and correction time and improving processing efficiency.

Description of drawings

In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments recorded in this application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a schematic structural perspective view of a U-turn wheel clamp in a specific embodiment;

Figure 2 is an exploded view of the U-turn wheel fixture shown in Figure 1;

Figure 3 is a front view of the U-turn wheel clamp shown in Figure 1.

Detailed ways

In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application. , not all examples. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

It should be noted that when an element is referred to as being "fixed" or "disposed on" another element, it can be directly on the other element or indirectly provided on the other element; when an element is referred to as "connected" "To" another component, it may be directly connected to the other component or indirectly connected to the other component.

It should be understood that the terms "length", "width", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "top" The orientations or positional relationships indicated by , "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply what is meant. Devices or elements must have a specific orientation, be constructed and operate in a specific orientation and therefore are not to be construed as limiting.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of this application, "plurality" and "several" mean two or more, unless otherwise explicitly and specifically limited.

It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to coordinate with the content disclosed in the specification for the understanding and reading of people familiar with this technology, and are not used to limit the conditions for the implementation of this application. , it has no technical substantive significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the effectiveness and purpose of this application, should still fall within the scope of what is disclosed in this application. within the scope of the technical content.

Please refer to Figures 1 to 3 in conjunction with the technical solution of the present invention, a specific embodiment of the U-turn wheel clamp provided, which includes: a base 1, a hydraulic unit 2, and a clamping unit 3;

As shown in Figures 1 to 3, in this embodiment, a placement slot 11 is provided on the base 1, and the opening size of the placement slot 11 gradually increases upward. Specifically, in this example, the placement slot 11 opens It is a V-shaped groove, and the U-turn wheel can be placed in the V-shaped groove, and the baffles arranged at an angle on both sides clamp and fix the sides of the outer surface of the U-turn wheel;

The hydraulic unit 2 includes: an energy accumulator 21, a pressure reducing valve 22, a coupling valve 23, and a pressure maintaining valve 24;

The clamping unit 3 includes: an oil cylinder 31, an oil cylinder pressure plate 32, and a profiling pressure head 33;

The energy accumulator 21, the pressure reducing valve 22, the coupling valve 23, and the pressure maintaining valve 24 are connected with each other to form the hydraulic unit 2. Through the control of the oil volume by the hydraulic unit 2, the The oil cylinder 31 telescopically moves to realize the switching between the clamping and relaxing states of the clamp;

The specific connection relationship of the clamping unit 3 is: one end of the oil cylinder pressure plate 32 is connected to the oil cylinder 31, and the other end is connected to the profiling pressure head 33;

When the hydraulic unit 2 drives the oil cylinder 31 to telescopically move, the profiling pressure head 33 is driven to clamp and loosen the U-turn wheel. As shown in Figures 1 and 3, the profiling pressure head 33 is in When clamping the U-turn wheel, it is arranged on the top of the U-turn wheel, and the U-turn wheel is clamped and fixed through the profiling pressure head 33 and the placement groove 11 .

Preferably, as shown in Figure 2, in this embodiment, the oil cylinder 31 and the oil cylinder pressure plate 32 are hinged through the pressure plate shaft pin 34 to realize the movable connection between the oil cylinder pressure plate 32 and the oil cylinder 31. When When placing or removing the U-turn wheel from the placement groove 11, the oil cylinder pressure plate 32 can be rotated through the pressure plate shaft pin 34 to avoid interference with the U-turn wheel.

Further, as shown in Figures 1 and 3, auxiliary support units 4 are also provided on both sides of the base 1 to further clamp and fix the U-turn wheel to prevent it from moving during the processing and causing processing accuracy errors. The auxiliary support unit 4 includes: an auxiliary support cylinder 41 and an auxiliary support cylinder base 42;

The specific connection relationship of the auxiliary support unit 4 is: one end of the auxiliary support cylinder 41 is in contact with the auxiliary support cylinder base 42, and the other end is in contact with the outer surface of the U-turn wheel to abut the U-turn wheel. Specifically, as shown in Figure 1, in this embodiment, the auxiliary support unit 4 is provided on the outer surfaces of both front and rear sides in the axial direction of the U-turn wheel.

Furthermore, as shown in Figures 1 and 3, in this embodiment, a positioning pin 12 is provided at the bottom of the placement groove 11, and the positioning pin 12 is provided at the center of the bottom of the placement groove 11 for positioning. The bottom provides support to the U-turn wheel, and at the same time, the positioning pin 12 is also connected to an air source to realize the gas inspection function after the U-turn wheel is processed.

Preferably, as shown in Figures 1 to 3, in order to avoid interference with the processing by the hydraulic unit 2 during the processing of the U-turn wheel, in this embodiment, a clamp is also connected to the bottom of the base 1. Heightening pad 13, the clamp heightening pad 13 isolates the base 1 from the hydraulic unit 2; an oil cylinder gasket 35 is also connected to the bottom of the oil cylinder 31, and the oil cylinder gasket 35 connects the oil cylinder 31 with the hydraulic unit 2. The hydraulic unit 2 is isolated;

By providing the clamp heightening pad 13 and the oil cylinder pad 35, the base 1 and the oil cylinder 31 are lifted in the horizontal direction to maintain a height difference with the hydraulic unit 2, which facilitates the processing of the U-turn wheel. , to avoid interference with the hydraulic unit 2.

Preferably, as shown in Figures 1 to 3, in this embodiment, the hydraulic unit 2 also includes a hydraulic oil meter 25. By being provided with the hydraulic oil meter, it is convenient for the operator to better observe the hydraulic pressure. The pressure value in unit 2 determines the clamping strength of the U-turn wheel clamp provided in this embodiment.

Further, as shown in Figures 1 to 3, in this embodiment, the hydraulic unit 2 also includes a manual pressure reduction switch 26. By being provided with the manual pressure reduction switch 26, it is convenient for the operator to adjust the pressure. The pressure of hydraulic unit 2 is manually adjusted to ensure that the U-turn wheel clamp maintains optimal clamping strength.

Preferably, in order to improve the processing efficiency of the U-turn wheel, compared with the traditional prior art, which can only clamp and process a single U-turn wheel, in this technical solution, several of the bases are provided on the clamp heightening pad 13. 1. To improve efficiency. Each base 1 is provided with: the clamping unit 3 and the auxiliary support unit 4. Specifically, as shown in Figures 1 to 3, in this embodiment, each clamp has a heightening pad 13, two bases 1 are provided, and each base 1 is equipped with the clamping unit 3 and the auxiliary support unit 4.

Preferably, this technical solution is also provided with a clamp bottom plate 5, and the base 1, the hydraulic unit 2, and the clamping unit 3 are all arranged on the clamp bottom plate 5 through bolt connections, etc., so that the U-turn wheel can The clamps can be uniformly installed on the clamp base plate 5 to form a modular structure.

Furthermore, the U-turn wheel clamp provided by this technical solution is installed on the machine tool workbench through the clamp base plate 6, which facilitates the modular installation of the clamp. It can be quickly installed on the machine tool workbench 6 through the clamp base plate 6. , suitable for a variety of machine tools, convenient for processing.

The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be practiced in other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A U-turn wheel clamp, characterized in that it includes: a base, a hydraulic unit, and a clamping unit; A placement slot is provided on the base, and the opening size of the placement slot gradually increases upward; The hydraulic unit includes: an energy accumulator, a pressure reducing valve, a coupling valve, and a pressure maintaining valve; The clamping unit includes: an oil cylinder, an oil cylinder pressure plate, and a profiling pressure head; The energy accumulator, the pressure reducing valve, the coupling valve, and the pressure maintaining valve are connected with each other to form the hydraulic unit, and the hydraulic unit controls the expansion and contraction of the oil cylinder; One end of the oil cylinder pressure plate is connected to the oil cylinder, and the other end is connected to the profiling pressure head; The expansion and contraction of the oil cylinder controls the profiling pressure head to clamp and relax the U-turn wheel. 2. The U-turn wheel clamp according to claim 1, characterized in that the oil cylinder and the oil cylinder pressure plate are hinged through a pressure plate axis pin. 3. The U-turn wheel clamp according to claim 2, characterized in that auxiliary support units are also provided on both sides of the base, and the auxiliary support units include: auxiliary support cylinders and auxiliary support cylinder seats; One end of the auxiliary support cylinder is connected to the auxiliary support cylinder base, and the other end is in contact with the outer surface of the U-turn wheel. 4. The U-turn wheel clamp according to claim 3, wherein a positioning pin is provided at the bottom of the placement groove. 5. The U-turn wheel clamp according to claim 4, wherein a clamp heightening pad is connected to the bottom of the base, and the clamp heightening pad isolates the base from the hydraulic unit; An oil cylinder gasket is also connected to the bottom of the oil cylinder, and the oil cylinder gasket isolates the oil cylinder from the hydraulic unit. 6. The U-turn wheel clamp according to claim 1, wherein the hydraulic unit further includes a hydraulic oil meter. 7. The U-turn wheel clamp according to claim 6, wherein the hydraulic unit further includes a manual pressure reducing switch. 8. The U-turn wheel clamp according to claim 5, wherein a plurality of bases are provided on the clamp heightening pad, and each base is provided with: the clamping unit and the auxiliary support. unit. 9. The U-turn wheel clamp according to any one of claims 1 to 8, characterized in that the bottom of the U-turn wheel clamp is also provided with a clamp bottom plate, and the base, the hydraulic unit and the clamping unit are all provided with on the bottom plate of the fixture. 10. The U-turn wheel clamp according to claim 9, characterized in that the U-turn wheel clamp is installed on the machine tool workbench through the clamp base plate.