Multi-specification workpiece vacuum adsorption device for lathe

Abstract

This utility model belongs to the field of lathe tooling technology, specifically a vacuum adsorption device for multi-specification workpieces on a lathe. It includes a carrier plate for the workpiece, with an annular inner groove on the front end face of the carrier plate. The carrier plate also has outer grooves arranged in the inner and outer rings of the inner groove. The inner and outer grooves form a set of air grooves for each type of workpiece. Multiple sets of air grooves with different radii are provided on the carrier plate. Air holes communicating with the air grooves are provided in the carrier plate. A connecting platform is formed at the rear end of the carrier plate, with a main air passage concentric with it and communicating with the air holes. This utility model uses the inner and outer grooves arranged internally and externally. The inner groove is used for adsorption on the side with countersunk holes, and also provides support in the middle of the workpiece to prevent deformation due to excessive negative pressure. The outer groove is used for adsorption on the side with countersunk holes.

Description

Technical Field

[0001] This utility model belongs to the field of lathe tooling technology, and in particular relates to a vacuum adsorption device for multi-specification workpieces used in lathes. Background Technology

[0002] CNC lathe tooling refers to the general term for various fixtures, cutting tools, and auxiliary devices used for fixing, clamping, positioning, supporting, and cutting workpieces when machining on a CNC lathe. CNC lathe tooling is an important component of CNC lathe machining, and its quality and performance directly affect machining quality and production efficiency.

[0003] There is a type of circular workpiece that requires several central grooves to be made on its front and back surfaces along the circumferential direction. The current method uses traditional clamps to clamp and fix it. Although this can ensure stability, it is not convenient to operate because it requires multiple tightening of bolts. In addition, when the diameter of the workpiece changes, the installation position of the clamps needs to be changed, which is not conducive to the flexibility of processing workpieces of multiple sizes.

[0004] To address the aforementioned issues, this application proposes a vacuum adsorption device for lathes with multiple workpiece specifications. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum adsorption device for multi-specification workpieces used in lathes, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a vacuum adsorption device for multi-specification workpieces used in lathes, comprising a carrier plate for workpieces, an annular inner groove on the front end face of the carrier plate, and an outer groove arranged in the inner and outer rings of the inner groove on the carrier plate. The inner groove and the outer groove form a set of air grooves for corresponding to a workpiece of a certain type. The air grooves are provided in multiple sets with different radii on the carrier plate. The carrier plate is provided with air holes communicating with the air grooves. A connecting platform is formed at the rear end of the carrier plate. The connecting platform is provided with a main air passage concentric with it and communicating with the air holes.

[0008] Furthermore, the air holes in each group of air grooves are all distributed in a straight line along the radial direction, and there are multiple air holes arranged in a circle, with the same number of air holes in each group of air grooves.

[0009] Furthermore, the carrier plate has air holes along the same straight line within the radius of the branch air passages. The branch air passages are arranged in a circle and have the same number of air holes as each group of air passages. One end of each branch air passage is connected to the main air passage, and the main air passage is connected to an external air source.

[0010] Furthermore, both the front and rear surfaces of the workpiece can be covered by a set of air grooves. When the unprocessed side of the workpiece is attached to the carrier plate, the inner groove is connected to the air hole and adsorbed under negative pressure. When the side with the countersunk hole is attached to the carrier plate, the countersunk hole connects the inner groove and the outer groove.

[0011] Furthermore, the diameter of the main airway is larger than the diameter of the branch airways, and the diameter of the branch airways is larger than the diameter of the vents.

[0012] This utility model has the following beneficial effects:

[0013] This utility model enables the rapid assembly and disassembly of workpieces on the carrier plate by setting a negative pressure mechanism with air holes. The air holes are arranged radially and connected by branch air channels. The air holes at different radius positions can adapt to the positioning of workpieces of different sizes.

[0014] This utility model features an inner groove and an outer groove arranged inside and outside. The inner groove is used for adsorption on the side with the countersunk hole and also provides support in the middle of the workpiece to prevent deformation caused by excessive negative pressure. The outer groove is used for adsorption on the side with the countersunk hole.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention from the front view.

[0018] Figure 2 This is a schematic diagram of the structure by which the workpiece is adsorbed according to this utility model;

[0019] Figure 3 for Figure 2 Rear view structural diagram;

[0020] Figure 4 for Figure 2 A schematic diagram of the structure after partial cross-section;

[0021] Figure 5 This is a schematic diagram of a partial cross-section of the structure from the side view;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] In the diagram: 1. Carrier plate; 11. Inner groove; 12. Outer groove; 13. Connecting platform; 2. Air hole; 3. Main air passage; 4. Branch air passage; 5. Workpiece; 51. Countersunk hole. Detailed Implementation

[0024] 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.

[0025] In the description of this utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around" and other terms indicating orientation or positional relationship are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Please see Figures 1-5 As shown, this utility model is a vacuum adsorption device for multi-specification workpieces used in lathes, including a carrier plate 1 for workpiece 5. The front end face of the carrier plate 1 is provided with an annular inner groove 11. The carrier plate 1 is also provided with an outer groove 12 arranged in the inner and outer rings of the inner groove 11. The inner groove 11 and the outer groove 12 form a set of air grooves for corresponding to a type of workpiece 5. The air grooves are provided with multiple sets of different radii on the carrier plate 1. The carrier plate 1 is provided with air holes 2 that communicate with the air grooves. The air holes 2 can be sealed by rubber plugs (not shown in the figure). The rubber plugs can be T-shaped structures. The small diameter part is fitted with a rubber ring and then plugged into the air hole 2 for sealing. The large diameter part plays a supporting role on the front end of the carrier plate 1. The rear end of the carrier plate 1 is formed with a connecting platform 13. The connecting platform 13 is provided with a main air channel 3 that is concentric with it and communicates with the air holes 2.

[0027] In this system, the air holes 2 in each air groove are arranged in a straight line along the radial direction, and there are multiple air holes 2 arranged in a circle. The number of air holes 2 in each air groove is the same. The straight arrangement of the air holes 2 facilitates the parallel connection of the main air passage 3. The circumferential arrangement of the air holes 2 ensures that the suction force is evenly applied to the workpiece 5. The fact that the number of air holes 2 in each air groove is the same also facilitates the corresponding placement and removal of the rubber plug.

[0028] In this embodiment, the carrier plate 1 has branch air channels 4 arranged radially, connecting air holes 2 on the same straight line within the radius. The branch air channels 4 are arranged in a circle and the number of air holes 2 in each group of air channels is the same. One end of all branch air channels 4 is connected to the main air channel 3. The main air channel 3 is connected to an external air source. In this embodiment, by cooperating with the air holes 2, the main air channel 3 and the branch air channels 4, it is possible to adapt to the positioning of workpieces 5 of different sizes without changing the adsorption channel. When the size of the workpiece 5 corresponds to the corresponding inner groove 11 and outer groove 12, all air holes 2 on other air channels are blocked by rubber plugs to ensure the adsorption force of the workpiece 5 at the required processing position.

[0029] In this case, the front and rear surfaces of the workpiece 5 can cover a set of air grooves to avoid gaps that may affect the adsorption effect. When the unprocessed side of the workpiece 5 is attached to the carrier plate 1, the inner groove 11 is connected to the air hole 2 and adsorbs under negative pressure. In this state, the outer groove 12 does not participate in the adsorption work. Since the inner groove 11 is close to the middle of the workpiece 5, even if the suction force is large, it will not cause the workpiece 5 to deform.

[0030] Furthermore, when the side with the countersunk hole 51 is in contact with the carrier plate 1, the countersunk hole 51 connects the inner groove 11 and the outer groove 12. The outer groove 12 can increase the adsorption range from the outside of the workpiece 5, avoiding air leakage due to the presence of the countersunk hole 51, and thus improving compatibility.

[0031] Among them, the diameter of the main air passage 3 is larger than the diameter of the branch air passage 4, and the diameter of the branch air passage 4 is larger than the diameter of the air hole 2. Through the size matching between the air passages, it is ensured that the negative pressure can be applied to the workpiece 5 more effectively, and that it is stably positioned.

[0032] A specific application of this embodiment is as follows: the carrier plate 1 is fixed to the lathe, the main air channel 3 is connected to the air source, the corresponding slot is selected according to the size of the workpiece 5, and then the air holes 2 in the remaining inner grooves 11 are plugged with rubber plugs. The workpiece 5 is placed on the inner groove 11, the negative pressure device works, and the workpiece 5 is adsorbed on the carrier plate 1 through the inner groove 11, air holes 2, branch air channels 4, and main air channel 3. The machine tool processes the side that is not adsorbed. After processing one side, the workpiece 5 is flipped over. At this time, the countersunk hole 51 connects the inner groove 11 and the outer groove 12, and at the same time, it adsorbs the side that has been processed until the processing is completed. After disconnecting the air source, the processed workpiece 5 can be removed.

[0033] Workstation switching: Remove the rubber plug from the desired workstation and insert it into the air hole 2 of the previous processing size to complete the switching.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A vacuum chucking device for workpieces of various sizes for a lathe, comprising a carrier plate (1) for the workpiece (5), characterized in that: The front end face of the carrier plate (1) is provided with an annular inner groove (11). The carrier plate (1) is also provided with an outer groove (12) arranged in the inner and outer rings of the inner groove (11). The inner groove (11) and the outer groove (12) form a set of air grooves for corresponding to a type of workpiece (5). The air grooves are provided with multiple sets of different radii on the carrier plate (1). The carrier plate (1) is provided with air holes (2) that communicate with the air grooves. The rear end of the carrier plate (1) is formed with a connecting platform (13). The connecting platform (13) is provided with a main air channel (3) that is concentric with it and communicates with the air hole (2).

2. The vacuum adsorption device for multi-specification workpieces used in lathes according to claim 1, characterized in that: The air holes (2) in each air groove are arranged in a straight line along the radial direction, and there are multiple air holes (2) arranged in a circle. The number of air holes (2) in each air groove is the same.

3. The vacuum adsorption device for multi-specification workpieces used in lathes according to claim 1, characterized in that: The carrier plate (1) has branch air channels (4) arranged radially to connect air holes (2) on the same straight line within the radius. The branch air channels (4) are arranged in a circle and the number of air holes (2) in each group of air channels is the same. One end of all branch air channels (4) is connected to the main air channel (3), and the main air channel (3) is connected to an external air source.

4. The vacuum adsorption device for multi-specification workpieces used in lathes according to claim 1, characterized in that: The front and rear surfaces of the workpiece (5) can cover a set of air grooves. When the unprocessed side of the workpiece (5) is attached to the carrier plate (1), the inner groove (11) is connected to the air hole (2) and adsorbed under negative pressure. When the side with the countersunk hole (51) is attached to the carrier plate (1), the countersunk hole (51) connects the inner groove (11) and the outer groove (12).

5. The vacuum adsorption device for multi-specification workpieces used in lathes according to claim 1, characterized in that: The diameter of the main airway (3) is greater than the diameter of the branch airway (4), and the diameter of the branch airway (4) is greater than the diameter of the pore (2).

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