Pneumatic tool clamp of CNC machining center
By using pneumatic positioning and clamping methods, the problem of unstable clamping and positioning of non-sheet products was solved, achieving rapid clamping and high-precision positioning, thus improving processing efficiency.
Patent Information
- Application Number
- CN202422641695.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing technologies suffer from problems such as unstable clamping and positioning, insufficient precision, and limited applicability when processing non-sheet products, especially those with arc-shaped structures, which affect processing accuracy and efficiency.
It adopts pneumatic positioning and pneumatic clamping methods, and controls the clamping force by adjusting the air pressure. The design includes a four-axis positioner, a bridge, an adapter plate, a pressure plate mechanism, and an X-axis limiting mechanism to achieve rapid clamping and positioning.
It improves clamping stability and accuracy, saves manual clamping time, expands the scope of application, and enhances production efficiency.
Smart Images

Figure CN223506751U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of tooling and fixture technology, and in particular relates to a pneumatic tooling and fixture for CNC machining centers. Background Technology
[0002] For automated processing of non-sheet products, multi-axis positioning devices and robotic arms are used. However, due to the special structure of these products, problems such as difficulty in quick clamping and positioning may arise. This is especially true for products with arc-shaped structures, which may result in insufficient accuracy, poor axial positioning, and a limited range of applications, thus affecting processing accuracy and efficiency. Summary of the Invention
[0003] The purpose of this utility model is to provide a pneumatic tooling fixture for CNC machining centers, which performs clamping, positioning and limiting through pneumatic positioning and pneumatic clamping. It is suitable for rapid clamping of machining centers. The clamping force is determined by the air pressure and can be controlled by adjusting the air pressure, which improves clamping stability and clamping accuracy, saves manual clamping time and improves production efficiency.
[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0005] This utility model is a pneumatic tooling fixture for a CNC machining center, including a four-axis positioner, a bridge, a transition plate, a set of pressure plate mechanisms and an X-axis limiting mechanism. The four-axis positioner is equipped with a set of rotary tables in opposite positions.
[0006] The bridge plate is fixed between two rotary tables. The adapter plate is fixed to the top of the bridge plate with fasteners. Y-axis positioning seats are fixed to the middle of both ends of the top of the adapter plate with fasteners. Through holes are provided at the four corners of the adapter plate.
[0007] The pressure plate mechanism includes a tooling pressure plate and a set of first cylinders;
[0008] Both ends of the tooling pressure plate are fixed with connecting lugs. The connecting lugs of the tooling pressure plates on the two pressure plate mechanisms are respectively opposite to the through-hole position. The first cylinder is fixed on the bottom surface of the plate bridge. The telescopic end of the first cylinder passes through the plate bridge and the through-hole and is fixed with the connecting lug.
[0009] The X-direction limiting mechanism includes a second cylinder and a positioning rod. The second cylinder is fixed to the bottom surface of the bridge plate, and the telescopic end of the second cylinder passes through the bridge plate. The positioning rod is fixed to the telescopic end of the second cylinder and is perpendicular to the bridge plate and located on the front side of the adapter plate.
[0010] Furthermore, it also includes a product body, with side clamping openings formed between both sides of the tooling pressure plate and both sides of the Y-direction positioning seat. The product body is respectively positioned in two side clamping openings on both sides, and the tooling pressure plate covers the upper surface of the product body.
[0011] Furthermore, the top of the positioning rod extends beyond the top surface of the product body, and the end of the product body is in contact with the peripheral side of the positioning rod.
[0012] Furthermore, a platform is fixed on the rotary table, and a horizontal edge is fixed on the bottom outer side of the platform. Several mounting holes are provided on the horizontal edge, and the end of the bridge plate is fixed to the top of the horizontal edge by fasteners and mounting holes.
[0013] Furthermore, the top of the product body is provided with a processing area, and the tooling plate is provided with a clearance opening opposite to the processing area.
[0014] Furthermore, the connecting lug is a rectangular block, and the connecting lug is provided with a connecting groove that mates with the telescopic end of the first cylinder, with one side of the connecting groove extending to the side of the connecting lug.
[0015] This utility model has the following beneficial effects:
[0016] 1. This utility model uses pneumatic positioning and pneumatic clamping for clamping, positioning and limiting, which is suitable for rapid clamping in machining centers. The clamping force is determined by the air pressure and can be controlled by adjusting the air pressure, which improves clamping stability and clamping accuracy, saves manual clamping time and improves production efficiency.
[0017] 2. The adapter plate, Y-axis positioning seat, tooling pressure plate, first cylinder, second cylinder and positioning rod designed in this utility model can all be disassembled and replaced individually, which can further improve the applicability of tooling fixtures.
[0018] 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
[0019] 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.
[0020] Figure 1 This is a schematic diagram of the structure of a pneumatic tooling fixture for a CNC machining center according to the present invention;
[0021] Figure 2 for Figure 1A magnified view of a section at point A in the middle;
[0022] Figure 3 This is a structural diagram of the adapter plate and tooling pressure plate;
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1-Four-axis positioner, 2-Bridge plate, 3-Adapter plate, 4-Pressure plate mechanism, 5-X-direction limiting mechanism, 6-Product body, 101-Rotary table, 102-Horizontal edge, 103-Table plate, 301-Y-direction positioning seat, 401-Tooling pressure plate, 402-First cylinder, 403-Connecting lug, 404-Leaning port, 405-Connecting groove, 501-Second cylinder, 502-Positioning rod, 601-Wait-to-process area. Detailed Implementation
[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-3 As shown, this utility model is a pneumatic tooling fixture for a CNC machining center, including a four-axis positioner 1, a bridge 2, a transfer plate 3, a set of pressure plate mechanisms 4 and an X-axis limiting mechanism 5. The four-axis positioner 1 is provided with a set of rotary tables 101 with opposite positions.
[0027] The bridge plate 2 is fixed between two rotary tables 101. The adapter plate 3 is fixed to the top of the bridge plate 2 by fasteners. The middle of both ends of the top of the adapter plate 3 is fixed with Y-direction positioning seats 301 by fasteners. The four corners of the adapter plate 3 are provided with through holes.
[0028] The pressure plate mechanism 4 includes a tooling pressure plate 401 and a set of first cylinders 402;
[0029] Both ends of the tooling plate 401 are fixed with connecting lugs 403. The connecting lugs 403 of the tooling plate 401 on the two pressure plate mechanisms 4 are respectively opposite to the through opening. The first cylinder 402 is fixed on the bottom surface of the plate bridge 2. The telescopic end of the first cylinder 402 passes through the plate bridge 2 and the through opening and is fixed with the connecting lugs 403.
[0030] The X-direction limiting mechanism 5 includes a second cylinder 501 and a positioning rod 502. The second cylinder 501 is fixed on the bottom surface of the bridge plate 2. The telescopic end of the second cylinder 501 passes through the bridge plate 2. The positioning rod 502 is fixed on the telescopic end of the second cylinder 501. The positioning rod 502 is perpendicular to the bridge plate 2 and located on the front side of the adapter plate 3.
[0031] Among them, such as Figure 1-2 As shown, it also includes a product body 6. Side clamping openings are formed between both sides of the tooling plate 401 and both sides of the Y-direction positioning seat 301. The two sides of the product body 6 are respectively set in the two side clamping openings, and the tooling plate 401 covers the upper surface of the product body 6.
[0032] Among them, such as Figure 1 As shown, the top of the positioning rod 502 extends beyond the top surface of the product body 6, and the end of the product body 6 is in contact with the peripheral side of the positioning rod 502.
[0033] Among them, such as Figure 1 As shown, a platform 103 is fixed on the rotary table 101, and a horizontal edge 102 is fixed on the bottom outer side of the platform 103. Several mounting holes are provided on the horizontal edge 102, and the end of the bridge plate 2 is fixed to the top of the horizontal edge 102 by fasteners and mounting holes.
[0034] Among them, such as Figure 2-3 As shown, the top of the product body 6 is provided with a processing area 601, and a tooling pressure plate 401 is provided with a clearance opening 404 opposite to the processing area 601.
[0035] Among them, such as Figure 2-3 As shown, the connecting lug 403 is a rectangular block, and the connecting lug 403 is provided with a connecting groove 405 that cooperates with the telescopic end of the first cylinder 402. One side of the connecting groove 405 extends to the side of the connecting lug 403.
[0036] 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.
[0037] 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 pneumatic tooling fixture for a CNC machining center, comprising a four-axis positioner (1), wherein the four-axis positioner (1) is provided with a set of rotary tables (101) positioned opposite each other, characterized in that: It also includes a bridge plate (2), a transition plate (3), a set of pressure plate mechanisms (4) and an X-direction limiting mechanism (5); The bridge plate (2) is fixed between two rotary tables (101), the adapter plate (3) is fixed to the top of the bridge plate (2) by fasteners, and the middle of both ends of the top of the adapter plate (3) is fixed with Y-direction positioning seats (301) by fasteners. The four corners of the adapter plate (3) are provided with through holes. The pressure plate mechanism (4) includes a tooling pressure plate (401) and a set of first cylinders (402). Both ends of the tooling plate (401) are fixed with connecting lugs (403). The connecting lugs (403) of the tooling plate (401) on the two pressure plate mechanisms (4) are respectively opposite to the through-hole position. The first cylinder (402) is fixed on the bottom surface of the plate bridge (2). The telescopic end of the first cylinder (402) passes through the plate bridge (2) and the through-hole and is fixed with the connecting lugs (403). The X-direction limiting mechanism (5) includes a second cylinder (501) and a positioning rod (502). The second cylinder (501) is fixed on the bottom surface of the bridge plate (2). The telescopic end of the second cylinder (501) passes through the bridge plate (2). The positioning rod (502) is fixed on the telescopic end of the second cylinder (501). The positioning rod (502) is perpendicular to the bridge plate (2) and located in front of the adapter plate (3).
2. The pneumatic tooling fixture for a CNC machining center according to claim 1, characterized in that, It also includes the product body (6), with side clamping openings formed between both sides of the tooling plate (401) and both sides of the Y-direction positioning seat (301). The two sides of the product body (6) are respectively set in the two side clamping openings, and the tooling plate (401) covers the upper surface of the product body (6).
3. A pneumatic tooling fixture for a CNC machining center according to claim 2, characterized in that, The top of the positioning rod (502) extends beyond the top surface of the product body (6), and the end of the product body (6) is in contact with the peripheral side of the positioning rod (502).
4. A pneumatic tooling fixture for a CNC machining center according to claim 1, characterized in that, A platform (103) is fixed on the rotary table (101). A horizontal edge (102) is fixed on the bottom outer side of the platform (103). Several mounting holes are provided on the horizontal edge (102). The end of the plate bridge (2) is fixed to the top of the horizontal edge (102) by fasteners and mounting holes.
5. A pneumatic tooling fixture for a CNC machining center according to claim 2, characterized in that, The product body (6) has a processing area (601) on its top, and a clearance opening (404) is provided on the tooling plate (401) that is opposite to the processing area (601).
6. A pneumatic tooling fixture for a CNC machining center according to claim 1, characterized in that, The connecting lug (403) is a rectangular block, and the connecting lug (403) is provided with a connecting groove (405) that cooperates with the telescopic end of the first cylinder (402). One side of the connecting groove (405) extends to the side of the connecting lug (403).