Multi-station clamp tool for automatic machining of precision assembly

Abstract

The utility model discloses a multi-station clamp tool for automatic machining of precision components, which comprises a base, a first back plate and a second back plate, and the first back plate and the second back plate are erected on the base; the base is further provided with two bearing assemblies. The bearing assemblies are arranged on the sides of the first back plate and the second back plate respectively. Four clamping assemblies, a first positioning assembly and a group of limiting assemblies are sequentially arranged on the first back plate from bottom to top; four clamping assemblies are arranged at the upper middle part of the second back plate; a second positioning assembly is arranged among the four clamping assemblies; a limiting assembly is arranged beside the two clamping assemblies on the upper portion of the second back plate. According to the multi-station clamp tool for automatic machining of the precise assembly, the multiple clamping assemblies are arranged and matched with the limiting assemblies, so that multi-angle precise clamping of various workpieces is achieved; and meanwhile, through the multi-station design of the two back plates, the production efficiency is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of automated processing, and specifically relates to a multi-station fixture for automated processing of precision components. Background Technology

[0002] Traditional processes often employ single-piece clamping. For example, when machining screws, only one piece can be clamped on a three-jaw self-centering chuck at a time, resulting in long clamping auxiliary time and low production efficiency. For the production of injection molding machine parts, especially parts with large production volumes, this single-piece clamping method will greatly increase the production cycle.

[0003] Meanwhile, the positioning and clamping accuracy of the workpiece during processing has a significant impact on the machining quality. Traditional fixtures cannot provide sufficient positioning accuracy and clamping reliability, resulting in substandard dimensional accuracy and surface quality of the machined parts. This is especially true for precision injection molding machine parts, where insufficient machining accuracy can affect the quality and efficiency of injection molding.

[0004] Therefore, the above problems urgently need to be solved. Utility Model Content

[0005] Purpose of the utility model: In order to overcome the above shortcomings, the purpose of this utility model is to provide a multi-station fixture for automated processing of precision components. By setting up several clamping components and cooperating with limiting components, it can achieve multi-angle precise clamping of various workpieces. At the same time, the multi-station design with two back plates greatly improves production efficiency.

[0006] Technical Solution: To achieve the above objectives, this utility model provides a multi-station fixture for automated processing of precision components, including a base, a first back plate, and a second back plate, with the first and second back plates standing on the base. The base also has two sets of support components, which are respectively located beside the first and second back plates. The first back plate has four clamping components, a first positioning component, and a set of limiting components arranged sequentially from bottom to top. The clamping components on the first back plate are arranged in a grid pattern. The second back plate has four clamping components in its middle section. A second positioning component is located between the four clamping components. A set of limiting components is located beside the two clamping components at the upper part of the second back plate. Each clamping component includes a chuck, an adjusting screw, a guide post, and a clamping block. The chuck is connected to the first and second back plates via the adjusting screw. The guide post is located on the first and second back plates. The chuck passes through the guide post in the middle and its position can be adjusted along the axial direction of the guide post. The clamping block is located on the first and second back plates and beside the guide post. The chuck and clamping block cooperate to complete the clamping.

[0007] Furthermore, before clamping, the first and second positioning components ensure that the corresponding workpieces are in the correct position and orientation, thereby reducing machining errors caused by positional deviations. The limiting component can be adjusted vertically to ensure that the clamped workpiece remains stable in the vertical direction, preventing displacement due to vibration or external forces. By adjusting the position of the clamping components and the adjusting screws of the chuck, it can accommodate precision components of different shapes and sizes, making the fixture adaptable to various machining tasks and improving the versatility and flexibility of the fixture. The chuck is axially adjusted via guide posts, which ensure that the chuck maintains precise linear movement during adjustment, thereby improving clamping accuracy and stability. The mating design of the chuck and clamping blocks provides a stable clamping force, ensuring that the workpiece remains fixed during machining.

[0008] Furthermore, the limiting component includes a connecting block and a limiting screw; the connecting block is disposed on the first back plate and the second back plate; the limiting screw is disposed on the connecting block and can be adjusted vertically. The vertical adjustment function of the limiting screw can ensure that the workpiece always remains in the correct position during processing. By adjusting the position and tightness of the limiting screw, the position of the workpiece in the vertical direction can be adjusted, thereby improving processing accuracy.

[0009] Furthermore, the connecting block is L-shaped, and the limiting screw is located on the long end of the L-shaped connecting block. The design of the L-shaped connecting block provides more stable structural support. The vertical part of the L-shaped connecting block can provide vertical support, while the horizontal part can increase the contact area, thereby improving the overall support strength.

[0010] Furthermore, the support assembly includes a set of T-shaped supports; the T-shaped supports are arranged parallel to each other on the base. The parallel arrangement of the T-shaped supports can effectively reduce the transmission of vibration during processing; since the contact area between the T-shaped supports and the base is large and evenly distributed, vibration energy can be dispersed between the T-shaped supports, thereby reducing the vibration transmitted to the workpiece.

[0011] Furthermore, the first positioning component includes a set of positioning blocks; the positioning blocks are horizontally disposed on the first back plate for positioning before clamping. Before clamping the workpiece, the positioning blocks can perform preliminary positioning of the workpiece to ensure that the workpiece is in the correct position and orientation before clamping.

[0012] Furthermore, the second positioning component includes a set of positioning posts; the positioning posts are horizontally disposed on the second back plate for positioning before clamping. Compared to the positioning blocks on the first back plate, the positioning posts provide positioning for workpieces of different sizes, and provide accurate positioning for workpieces that need to be clamped on the second back plate.

[0013] Furthermore, the chucks on the same side of the first backplate are arranged in a V-shape. When the chucks are arranged in a V-shape, the clamping force can be more evenly distributed on the clamped precision component, improving the stability of the clamping.

[0014] As can be seen from the above technical solution, this utility model has the following beneficial effects:

[0015] 1. This utility model provides a multi-station fixture for automated processing of precision components. Through the setting of several clamping components and the cooperation of limiting components, it realizes multi-angle precise clamping of various workpieces.

[0016] 2. This utility model provides a multi-station fixture for automated processing of precision components. Through the vertical design of two back plates, it meets the needs of multi-station processing and greatly improves production efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the first back plate in a multi-station fixture for automated processing of precision components according to the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of the second back plate in a multi-station fixture for automated processing of precision components according to the present invention.

[0019] Figure 3 This is a schematic diagram of the clamping on the first back plate in a multi-station fixture for automated processing of precision components according to the present invention.

[0020] Figure 4 This is a schematic diagram of the clamping on the second back plate in a multi-station fixture for automated processing of precision components according to the present invention.

[0021] In the picture:

[0022] 1-Base; 11-Supporting component; 111-T-shaped support block;

[0023] 2-First backplate; 21-Clamping assembly; 22-First positioning assembly; 23-Limiting assembly;

[0024] 211-Chuck; 212-Adjusting screw; 213-Guide post; 214-Clamping block; 221-Positioning block; 231-Connecting block; 232-Limit screw;

[0025] 3-Second backplate; 31-Second positioning component; 311-Positioning post. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Example

[0027] In this embodiment, as Figure 1 and Figure 2 This utility model discloses a multi-station fixture for automated processing of precision components, including a base 1, a first back plate 2, and a second back plate 3, with the first back plate 2 and the second back plate 3 standing on the base 1; the base 1 is also provided with two sets of support components 11; the support components 11 are respectively located on the sides of the first back plate 2 and the second back plate 3; the first back plate 2 is provided with four clamping components 21, a first positioning component 22, and a set of limiting components 23 from bottom to top; the clamping components 21 on the first back plate 2 are distributed in a grid pattern; the second back plate 3 has four clamping components 21 in the middle; and a second positioning group is provided between the four clamping components 21. Component 31; A set of limiting components 23 is provided on the side of the two clamping components 21 on the upper part of the second back plate 3; The clamping component 21 includes a chuck 211, an adjusting screw 212, a guide post 213 and a clamping block 214; The chuck 211 is connected to the first back plate 2 and the second back plate 3 through the adjusting screw 212; The guide post 213 is provided on the first back plate 2 and the second back plate 3; The chuck 211 is provided through the guide post 213 in the middle and can be adjusted in position along the axial direction of the guide post 213; The clamping block 214 is provided on the first back plate 2 and the second back plate 3 and is located on the side of the guide post 213; The chuck 211 and the clamping block 214 cooperate to complete the clamping.

[0028] Specifically, hard coatings such as titanium nitride and aluminum titanium nitride can be applied to the surfaces of the chuck 211, chuck block 214, first positioning component 22 and second positioning component 31 to improve wear resistance and scratch resistance, and extend service life.

[0029] In particular, a cylinder can be used instead of the adjusting screw 212 as an option. The opening and closing of the chuck is controlled by a pneumatic system, thereby avoiding manual intervention, achieving rapid clamping and release, and improving production efficiency.

[0030] In particular, it is preferable to design the limit screw 232 as electrically adjustable, with the extension and retraction of the limit screw 232 driven by a motor. At the same time, a pressure sensor is integrated at the lower end of the limit screw 232 to achieve precise adjustment of the limit position, thereby improving the accuracy and automation of the limit.

[0031] In this embodiment, as Figure 1 and Figure 2The limiting component 23 includes a connecting block 231 and a limiting screw 232; the connecting block 231 is disposed on the first back plate 2 and the second back plate 3; the limiting screw 232 is disposed on the connecting block 231 and can be adjusted in the vertical direction.

[0032] Specifically, an elastic element, such as a spring or an elastic washer, can be added to the limiting component 23. The elastic element is located at the lower end of the limiting screw 232. The elastic element provides a certain elastic buffer when the limiting screw 232 contacts the workpiece, reducing the pressure on the workpiece, avoiding scratching the workpiece surface, and providing a more stable limiting effect.

[0033] In this embodiment, as Figure 1 and Figure 2 The connecting block 231 is L-shaped, and the limiting screw 232 is located on the long end of the L-shaped connecting block 231.

[0034] Specifically, the short end of the L-shaped connecting block 231 is connected to the first back plate 2 and the second back plate 3 by several screws.

[0035] In this embodiment, as Figure 1 and Figure 2 The supporting component 11 includes a set of T-shaped support blocks 111; the T-shaped support blocks 111 are arranged parallel to the base 1.

[0036] Specifically, rubber or elastic components can be added to the top of the T-shaped support block 111 to ensure support stability while reducing vibrations generated during processing.

[0037] In this embodiment, as Figure 1 The first positioning component 22 includes a set of positioning blocks 221; the positioning blocks 221 are horizontally arranged on the first back plate 2 for positioning before clamping.

[0038] In particular, magnetic materials can be embedded in the positioning block 221 to make the positioning block 221 magnetic; for some magnetic workpieces, the magnetic positioning block 221 can be attracted by magnetic force to achieve rapid positioning.

[0039] In this embodiment, as Figure 2 The second positioning component 31 includes a set of positioning posts 311; the positioning posts 311 are horizontally arranged on the second back plate 3 for positioning before clamping.

[0040] Specifically, during clamping, the positioning post 311 is inserted into the corresponding opening on the workpiece to complete the positioning; the length of the positioning post 311 corresponds to the depth of the opening on the workpiece, and the radius of the positioning post 311 is slightly smaller than the radius of the opening on the workpiece.

[0041] In this embodiment, as Figure 1The clamps 211 on the same side of the first back plate 2 are arranged in a figure-eight shape.

[0042] Specifically, the chuck 211 preferably adopts a rectangular chuck. At the same time, the top two sides of the chuck are symmetrically chamfered to better fit the shape of the workpiece to be clamped and achieve stable clamping.

[0043] The working principle of the above embodiments is as follows:

[0044] This utility model discloses a multi-station fixture for automated machining of precision components. For the fixture on one side of the first back plate 2, such as... Figure 3 Place the fixture on the T-shaped support block 111 and position it by the positioning block 221; adjust the chuck 211 to hold the fixture from bottom to top by adjusting the screw 212; adjust the limit screw 232 in the vertical direction to achieve the upper limit, and the clamping operation is completed.

[0045] For the tooling on one side of the second backplate 3, such as Figure 4 The tooling is placed on the T-shaped support block 111 and positioned by the positioning pin 311; the tooling is clamped by the chuck 211 by adjusting the adjusting screw 212 from bottom to top; the limit screw 232 is adjusted in the vertical direction to achieve the upper limit, and the clamping operation is completed.

[0046] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A multi-station fixture for automated machining of precision components, characterized in that: include: A base (1), a first back plate (2) and a second back plate (3), the first back plate (2) and the second back plate (3) standing on the base (1); The base (1) is also provided with two sets of support components (11); the support components (11) are respectively located on the sides of the first back plate (2) and the second back plate (3); The first back plate (2) is provided with four clamping components (21), a first positioning component (22) and a set of limiting components (23) from bottom to top. The clamping components (21) on the first back plate (2) are arranged in a grid pattern; The second back plate (3) has four clamping components (21) in the upper middle part; a second positioning component (31) is provided between the four clamping components (21); a set of limiting components (23) is provided on the side of the two clamping components (21) on the upper part of the second back plate (3); The clamping assembly (21) includes a chuck (211), an adjusting screw (212), a guide post (213), and a clamping block (214). The chuck (211) is connected to the first back plate (2) and the second back plate (3) by adjusting screws (212); the guide post (213) is provided on the first back plate (2) and the second back plate (3); the chuck (211) is provided through the guide post (213) in the middle and can be adjusted along the axial direction of the guide post (213); the clamping block (214) is provided on the first back plate (2) and the second back plate (3) and is located beside the guide post (213); the chuck (211) and the clamping block (214) cooperate to complete the clamping.

2. The multi-station fixture for automated machining of precision components according to claim 1, characterized in that: The limiting component (23) includes a connecting block (231) and a limiting screw (232); The connecting block (231) is located on the first back plate (2) and the second back plate (3); the limiting screw (232) is located on the connecting block (231) and can be adjusted vertically.

3. The multi-station fixture for automated machining of precision components according to claim 2, characterized in that: The connecting block (231) is L-shaped, and the limiting screw (232) is located on the long end of the L-shaped connecting block (231).

4. The multi-station fixture for automated machining of precision components according to claim 1, characterized in that: The supporting component (11) includes a set of T-shaped support blocks (111); the T-shaped support blocks (111) are arranged parallel to the base (1).

5. The multi-station fixture for automated machining of precision components according to claim 1, characterized in that: The first positioning component (22) includes a set of positioning blocks (221); the positioning blocks (221) are horizontally arranged on the first back plate (2) for positioning before clamping.

6. The multi-station fixture for automated machining of precision components according to claim 1, characterized in that: The second positioning component (31) includes a set of positioning posts (311); the positioning posts (311) are horizontally arranged on the second back plate (3) for positioning before clamping.

7. The multi-station fixture for automated machining of precision components according to claim 1, characterized in that: The clamps (211) on the same side of the first back plate (2) are arranged in a figure-eight shape.

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