Horizontal CNC machining die casting tool
By designing a horizontal CNC machined die-casting tooling, using arc-shaped support surfaces, air-avoiding grooves and elastic blocks, the problem of difficult to fix workpieces with many curved surfaces in the existing tooling is solved, and stable fixation and high-precision processing are achieved.
Patent Information
- Application Number
- CN202422179763.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The existing tool sets for die casting CNC processing are difficult to fix workpieces with curved shapes and a large number of curved surfaces on the outer periphery, resulting in unstable processing.
A horizontal CNC machining die-casting workpiece is designed, including a fixing base, a mounting plate, a first clamping assembly and a second clamping assembly. The curved support surface, an air-avoiding groove and an elastic block are used to achieve a stable fixation of the bending workpiece through multiple clamping components.
It realizes stable fixation of workpieces with many curved and curved surfaces, ensuring the stability and accuracy of CNC machining, and is simple and convenient to operate.
Smart Images
Figure CN223029085U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of CNC machining, and particularly relates to a horizontal CNC machining fixture for die-castings. Background Art
[0002] A die-casting is a pressure-cast part. A die-casting machine equipped with a die-casting mold for castings is used to pour molten copper, zinc, aluminum, or aluminum alloy and other metals into the inlet of the die-casting machine. After die-casting by the die-casting machine, copper, zinc, aluminum parts, or aluminum alloy parts with shapes and sizes restricted by the mold are cast. Such parts are usually called die-castings. When machining die-castings using a numerically controlled machine tool, a fixture is required for product positioning to prevent displacement during machining. Most of the current fixtures for CNC machining of die-castings are only for clamping workpieces with more flat surfaces. However, for workpieces such as handles and rotating handles, they are curved in shape and have a large number of arc surfaces on the outer periphery. It is difficult to firmly fix them using traditional clamping fixtures. Therefore, it is necessary to produce a horizontal CNC machining fixture for die-castings to solve the above problems. Summary of the Utility Model
[0003] The purpose of the utility model is to provide a horizontal CNC machining fixture for die-castings to solve the problems mentioned in the background art.
[0004] To achieve the above purpose, the utility model provides the following technical solutions:
[0005] A horizontal CNC machining fixture for die-castings includes a fixed base, a mounting plate, a first clamping assembly, and a second clamping assembly. The mounting plate is fixed above the fixed base. The first clamping assembly includes a support platform, a first mounting block, a limiting plate, and a first downward pressing assembly. The support platform is fixed above the left side of the fixed base. A clearance groove is provided in the middle of the support platform. An arc-shaped support surface is also provided on the support platform. Two groups of arc-shaped support surfaces are provided and are respectively corresponding to the left and right sides of the clearance groove. The first mounting block is fixed on the mounting plate and corresponds to the rear side of the support platform. The limiting plate is fixed on the front side of the first mounting block and corresponds to the support platform. The first downward pressing assembly is fixed above the first mounting block. The second clamping assembly includes a front clamping component and a rear clamping component. The front clamping component is fixed above the right side of the mounting plate. The rear clamping component is fixed on the mounting plate and corresponds to the rear side of the front clamping component.
[0006] Further description of the present utility model: The first pressing component includes a first stud, a second stud, a first pressing plate, a spring, a first locking screw, a second locking screw, and an elastic pressing block. The lower end of the first stud is fixed above the first mounting block. The first pressing plate is provided with a strip-shaped hole. The upper end of the first stud passes through the strip-shaped hole on the first pressing plate. The spring is sleeved on the first stud. The upper end of the spring contacts the lower end surface of the first pressing plate, and the lower end of the spring contacts the upper end surface of the first mounting block. The first locking screw is threadedly connected to the upper end of the first stud and its lower end contacts the upper end surface of the first pressing plate. The elastic pressing block is fixed below the front side of the first pressing plate and corresponds to above the support stage. The elastic pressing block is made of an elastic material. The lower end of the second stud is threadedly connected to the first mounting block, and the upper end of the second threaded stud contacts below the rear end of the first pressing plate. The second locking screw is threadedly connected to the lower end of the second stud and its lower end contacts the upper end surface of the first mounting block.
[0007] Further description of the present utility model: The front clamping component includes a second mounting block, a second pressing component, a Z-axis limiting screw, and a first Y-axis limiting screw. The second mounting block is fixed above the mounting plate and corresponds to the right side of the support stage. A placement groove is provided on the right side of the second mounting block. The left end of the second pressing component is fixed to the second mounting block and its right end corresponds to above the placement groove. The lower end of the Z-axis limiting screw is threadedly connected to the second mounting block, and the Z-axis limiting screw corresponds to within the placement groove. The first Y-axis limiting screw passes through the left side of the second mounting block. The first Y-axis limiting screw is threadedly connected to the second mounting block, and a rounded corner is provided at the rear end of the first Y-axis limiting screw.
[0008] Further description of the present utility model: The rear clamping component includes a third mounting block and a second Y-axis limiting screw. The lower end of the third mounting block is fixed above the mounting plate. The second Y-axis limiting screw passes through the third mounting block. The second Y-axis limiting screw is threadedly connected to the third mounting block. A rounded corner is provided at the front end of the second Y-axis limiting screw. The second Y-axis limiting screw corresponds to the placement groove.
[0009] The beneficial effects of the present utility model are as follows: Before CNC machining a bent workpiece, the workpiece is first placed on this fixture for fixation. Specifically, the bent part at the left end of the workpiece is first placed on the support stage. The arc-shaped surface outside the workpiece fits with the arc-shaped support surface. The clearance groove in the middle can make the workpiece fit more tightly with the arc-shaped support surface. The rear side of the left end of the workpiece is limited by the limit plate. Then, the first locking screw is rotated to lower the first pressing plate, thereby driving the elastic pressing block to press the workpiece downward against the support stage. The elastic pressing block is made of an elastic material and can better match the outer contour of the workpiece. The height of the second stud is adjusted in advance and then fixed with the second locking screw. When the elastic pressing block presses the workpiece, the second stud plays a supporting role for the rear end of the first pressing plate. After the left side of the workpiece is fixed, the right side of the workpiece is fixed by the front clamping component and the rear clamping component, and then CNC machining can be carried out. After the machining is completed, when the workpiece needs to be disassembled, the first locking screw is rotated in the reverse direction. Under the action of the spring, the first pressing plate rises upward, facilitating the removal of the workpiece. The advantage of this design is that it can clamp and fix special-shaped workpieces, especially workpieces with mostly curved outer surfaces, and its operation is simple and convenient. Brief Description of the Drawings
[0010] Figure 1 is the overall structure diagram of the present utility model;
[0011] Figure 2 is the overall structure diagram of the present utility model (including the workpiece);
[0012] Figure 3 is the structure diagram of the first clamping assembly in the present utility model;
[0013] Figure 4 is the structure diagram of the front clamping component in the present utility model;
[0014] Figure 5 is the structure diagram of the rear clamping component in the present utility model;
[0015] Description of the Reference Numerals:
[0016] 1. Fixed base; 2. Mounting plate; 3. First clamping assembly; 31. Support stage; 311. Clearance groove; 312. Arc-shaped support surface; 32. First mounting block; 33. Limit plate; 34. First downward pressing assembly; 341. First stud; 342. Second stud; 343. First pressing plate; 344. Spring; 345. First locking screw; 346. Second locking screw; 347. Elastic pressing block; 4. Second clamping assembly;
[0017] 41. Front clamping component; 411. Second mounting block; 4111. Placement groove; 412. Second downward pressing assembly;
[0018] 413. Z-axis limit screw; 414. First Y-axis limit screw; 42. Rear clamping component; 421. Third mounting block; 422. Second Y-axis limit screw. Detailed implementation manner
[0019] The present utility model will be further described below in conjunction with the accompanying drawings:
[0020] As Figures 1 to 5 shown, a horizontal CNC machining die-casting tooling includes a fixed base 1, a mounting plate 2, a first clamping assembly 3 and a second clamping assembly 4. The mounting plate 2 is fixed above the fixed base 1. The first clamping assembly 3 includes a support platform 31, a first mounting block 32, a limit plate 33 and a first pressing-down assembly 34. The support platform 31 is fixed above the left side of the fixed base 1. A clearance groove 311 is provided in the middle of the support platform 31. An arc-shaped support surface 312 is also provided on the support platform 31. Two sets of arc-shaped support surfaces 312 are provided and are respectively corresponding to the left and right sides of the clearance groove 311. The first mounting block 32 is fixed on the mounting plate 2 and corresponding to the rear side of the support platform 31. The limit plate 33 is fixed on the front side of the first mounting block 32 and corresponding to the support platform 31. The first pressing-down assembly 34 is fixed above the first mounting block 32. The second clamping assembly 4 includes a front clamping component 41 and a rear clamping component 42. The front clamping component 41 is fixed on the upper right side of the mounting plate 2. The rear clamping component 42 is fixed on the mounting plate 2 and corresponding to the rear side of the front clamping component 41.
[0021] The first pressing-down assembly 34 includes a first stud 341, a second stud 342, a first pressing plate 343, a spring 344, a first locking screw 345, a second locking screw 346 and an elastic pressing block 347. The lower end of the first stud 341 is fixed above the first mounting block 32. A strip-shaped hole is provided on the first pressing plate 343. The upper end of the first stud 341 passes through the strip-shaped hole on the first pressing plate 343. The spring 344 is sleeved on the first stud 341. The upper end of the spring 344 contacts the lower end surface of the first pressing plate 343. The lower end of the spring 344 contacts the upper end surface of the first mounting block 32. The first locking screw 345 is threadedly connected to the upper end of the first stud 341 and the lower end contacts the upper end surface of the first pressing plate 343. The elastic pressing block 347 is fixed below the front side of the first pressing plate 343 and corresponding to the upper side of the support platform 31. The elastic pressing block 347 is made of an elastic material. The lower end of the second stud 342 is threadedly connected to the first mounting block 32. The upper end of the second threaded stud contacts the lower rear side of the first pressing plate 343. The second locking screw 346 is threadedly connected to the lower end of the second stud 342 and the lower end contacts the upper end surface of the first mounting block 32.
[0022] Before CNC machining a bent workpiece, the workpiece is first placed on this fixture for fixation. Specifically, the bent part at the left end of the workpiece is first placed on the support stage 31, the arc-shaped surface outside the workpiece fits with the arc-shaped support surface 312, and the clearance groove 311 in the middle can make the fitting tightness between the workpiece and the arc-shaped support surface 312 higher. The rear side of the left end of the workpiece is limited by the limit plate 33. Then, the first locking screw 345 is rotated to lower the first pressing plate 343, thereby driving the elastic pressing block 347 to press the workpiece downward onto the support stage 31. The elastic pressing block 347 is made of an elastic material and can better match the outer contour of the workpiece. The height of the second stud 342 is adjusted in advance and then fixed with the second locking screw 346. When the elastic pressing block 347 presses the workpiece, the second stud 342 plays a supporting role for the rear end of the first pressing plate 343. After the left side of the workpiece is fixed, the right side of the workpiece is fixed by the front clamping component 41 and the rear clamping component 42, and then CNC machining can be carried out. After the machining is completed, when the workpiece needs to be disassembled, the first locking screw 345 is rotated in the reverse direction, and under the action of the spring 344, the first pressing plate 343 rises upward, facilitating the removal of the workpiece. The advantage of this design is that it can clamp and fix special-shaped workpieces, especially workpieces with mostly curved outer surfaces, and its operation is simple and convenient.
[0023] The front clamping component 41 includes a second mounting block 411, a second downward pressing assembly 412, a Z-axis limit screw 413, and a first Y-axis limit screw 414. The second mounting block 411 is fixed above the mounting plate 2 and corresponds to the right side of the support stage 31. A placement groove 4111 is provided on the right side of the second mounting block 411. The left end of the second downward pressing assembly 412 is fixed to the second mounting block 411, and the right end corresponds to the upper part of the placement groove 4111. The lower end of the Z-axis limit screw 413 is threadedly connected to the second mounting block 411, and the Z-axis limit screw 413 corresponds to the inside of the placement groove 4111. The first Y-axis limit screw 414 passes through the left side of the second mounting block 411 and is threadedly connected to the second mounting block 411. A fillet is provided at the rear end of the first Y-axis limit screw 414.
[0024] The right end of the workpiece is placed in the placement groove 4111. Rotating the Z-axis limit screw 413 can adjust the height of the Z-axis limit screw 413, and the Z-axis limit screw 413 can be set in advance according to the workpiece size. Then, by rotating the first Y-axis limit screw 414, the front side of the workpiece is limited, and the rear clamping component 42 limits the rear side of the workpiece. After positioning, the right end of the workpiece is pressed downward by the second downward pressing assembly 412, thereby completing the clamping and fixing of the workpiece.
[0025] The rear clamping member 42 includes a third mounting block 421 and a second Y-axis limiting screw 422. The lower end of the third mounting block 421 is fixed above the mounting plate 2. The second Y-axis limiting screw 422 passes through the third mounting block 421 and is threadedly connected to the third mounting block 421. The front end of the second Y-axis limiting screw 422 is provided with a rounded corner. The second Y-axis limiting screw 422 corresponds to the placement groove 4111. By rotating the second Y-axis limiting screw 422, the rear side of the workpiece is limited.
[0026] The above does not impose any limitation on the technical scope of the present utility model. Any modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims
1. A horizontal CNC die-casting tool, characterized in that: The cam is secured to the upper and lower surfaces of the frame, and the mounting plate is fixed to the upper and lower surfaces of the frame, wherein the first clamping assembly comprises a support platform, a first mounting block, a limiting plate and a first pressing assembly, the support platform is fixed to the left side above the fixed base, an air avoidance groove is provided in the middle of the support platform, and an arc-shaped supporting surface is also provided on the support platform, the arc-shaped supporting surfaces are arranged in two groups and correspond to the left and right sides of the air avoidance groove respectively, the first mounting block is fixed to the mounting plate and corresponds to the rear side of the support platform, the limiting plate is fixed to the front side of the first mounting block and corresponds to the support platform, the first pressing assembly is fixed to the top of the first mounting block, and the second clamping assembly comprises a front clamping component and a rear clamping component, the front clamping component is fixed to the right side above the mounting plate, and the rear clamping component is fixed to the mounting plate and corresponds to the rear side of the front clamping component.
2. A horizontal CNC die casting tool according to claim 1, characterized in that: The first pressing assembly comprises a first stud, a second stud, a first pressure plate, a spring, a first locking screw, a second locking screw and an elastic pressing block, the lower end of the first stud is fixed above the first mounting block, the first pressure plate is provided with a strip hole, the upper end of the first stud passes through the strip hole on the first pressure plate, the spring is sleeved on the first stud, the upper end of the spring contacts with the lower end surface of the first pressure plate, the lower end of the spring contacts with the upper end surface of the first mounting block, the first locking screw is threadedly connected to the upper end of the first stud and the lower end contacts with the upper end surface of the first pressure plate, the elastic pressing block is fixed below the front side of the first pressure plate and corresponds to the top of the supporting platform, the elastic pressing block is made of elastic material, the lower end of the second stud is threadedly connected to the first mounting block, the upper end of the second stud contacts with the lower rear end of the first pressure plate, the second locking screw is threadedly connected to the lower end of the second stud and the lower end contacts with the upper end surface of the first mounting block.
3. The horizontal CNC die-casting tooling according to claim 1, characterized in that: The front clamping component includes a second mounting block, a second pressing assembly, a Z-axis limit screw and a first Y-axis limit screw. The second mounting block is fixed above the mounting plate and corresponds to the right side of the supporting platform. A placement groove is provided on the right side of the second mounting block. The left end of the second pressing assembly is fixed on the second mounting block and the right end corresponds to the top of the placement groove. The lower end of the Z-axis limit screw is threadedly connected to the second mounting block. The Z-axis limit screw corresponds to the placement groove. The first Y-axis limit screw passes through the left side of the second mounting block. The first Y-axis limit screw is threadedly connected to the second mounting block. The rear end of the first Y-axis limit screw is provided with a rounded corner.
4. A horizontal CNC die-casting tooling according to claim 3, characterized in that: The rear clamping component includes a third mounting block and a second Y-axis limit screw, the lower end of the third mounting block is fixed above the mounting plate, the second Y-axis limit screw passes through the third mounting block, the second Y-axis limit screw is threadedly connected to the third mounting block, the front end of the second Y-axis limit screw is provided with a rounded corner, and the second Y-axis limit screw corresponds to the placement groove.