Workpiece fixture for a vertical machining center

Abstract

The utility model belongs to vertical machining center equipment technical field especially, a kind of workpiece fixing device for vertical machining center, it includes base, the fixing device further includes: fixed rod, it is set to four, the bottom end of four fixed rod is fixedly installed in the top of base;Support plate, the bottom of support plate is fixedly installed with the top of four fixed rod respectively;Clamping assembly, the clamping assembly includes: four clamping plates, four U-shaped rods and four springs, the bottom of four clamping plates is slidably connected with the top of support plate, one end of U-shaped rod is fixedly installed in the side of corresponding clamping plate, one end of four springs is fixedly installed with the front side, rear side, left side and right side of support plate respectively, the utility model is fixed to the stable efficient of workpiece by simple structure, guarantee that scrap concentrates in the top of support plate simultaneously, it is convenient for subsequent cleaning, and will not affect the normal use of transmission assembly and clamping assembly, and it is strong in practicality.

Description

Technical Field

[0001] This utility model relates to the technical field of vertical machining center equipment, and in particular to a workpiece fixing device for a vertical machining center. Background Technology

[0002] A vertical machining center is a machining center in which the spindle axis is set perpendicular to the worktable. It is mainly suitable for machining workpieces such as plates, discs, molds, and small shell-shaped complex parts. CNC milling machines are divided into two main categories: those without tool magazines and those with tool magazines. CNC milling machines with tool magazines are also called machining centers. Machining centers realize the automation of medium and small batch processing. In addition, machining centers have the advantages of high production efficiency, stable processing progress, and low product cost. At present, when machining workpieces, vertical machining centers often need to use fixing devices to fix the workpieces to prevent the workpieces from moving during the machining process.

[0003] In the prior art, Chinese patent application number 202222534976.X discloses a workpiece fixing device for a vertical machining center, including a worktable. A motor is fixedly connected to the middle of the bottom inner wall of the worktable, and a rotating shaft is fixedly connected to the drive end of the motor. A driving bevel gear is fixedly connected to the outer bottom side of the rotating shaft. Fixing plates are fixedly connected to all four sides of the top inner wall of the worktable. A threaded rod is rotatably connected to the through hole in the middle of the fixing plate. A driven bevel gear is fixedly connected to the end of the threaded rod away from the fixing plate, and a moving block is threadedly connected to the outside of the threaded rod. In this invention, the workpiece is placed at the top center of the worktable, and the workpiece is clamped and fixed by a rubber pad driven by the motor. This prevents the workpiece from becoming loose during operation, which could lead to poor milling results. It also facilitates quick fixation of the workpiece, thereby improving work efficiency.

[0004] However, the above-mentioned technical solution has multiple square grooves on the worktable. When machining the workpiece, the debris will fall into the interior of the worktable through the square grooves. The large amount of accumulated debris is not only difficult to clean, but also affects the transmission between the driving bevel gear, the threaded rod, the driven bevel gear and the moving block, causing jamming and affecting the normal use of the fixing device. Therefore, this application proposes a workpiece fixing device for a vertical machining center to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to solve the problem in the existing technology where multiple square grooves are opened on the worktable. When the workpiece is processed, the debris will fall into the interior of the worktable through the square grooves. The large amount of accumulated debris is not only difficult to clean, but also affects the transmission between the driving bevel gear, the threaded rod, the driven bevel gear and the moving block, causing jamming and affecting the normal use of the fixing device. Therefore, the proposed workpiece fixing device is used for vertical machining centers.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A workpiece fixing device for a vertical machining center, including a base, the fixing device further comprising:

[0008] The base has four fixing rods, and the bottom ends of the four fixing rods are all fixedly installed on the top of the base.

[0009] A support plate, the bottom of which is fixedly installed to the top of four fixing rods respectively;

[0010] The clamping assembly includes four clamping plates, four U-shaped rods, and four springs. The bottom of each of the four clamping plates is slidably connected to the top of the support plate. One end of each U-shaped rod is fixedly installed on one side of the corresponding clamping plate. One end of each of the four springs is fixedly installed on the front, rear, left, and right sides of the support plate, respectively. The other end of each spring is fixedly installed on the corresponding U-shaped rod.

[0011] A transmission assembly is disposed between the base and the support plate, and the transmission assembly is respectively engaged with four U-shaped rods.

[0012] As a preferred embodiment of this utility model, the top of the support plate is provided with a placement area.

[0013] As a preferred embodiment of this utility model, an anti-slip pad is fixedly installed on the other side of the clamping plate.

[0014] As a preferred embodiment of this utility model, each of the four U-shaped rods is slidably fitted with a slip ring, and the bottom ends of the four slip rings are respectively fixedly installed on the front, rear, left and right sides of the support plate.

[0015] In a preferred embodiment of this utility model, the transmission assembly includes four slide rods, a motor, a take-up roller, and four transmission steel belts. The top ends of the four slide rods are slidably connected to the bottom of the support plate. One side of each slide rod is fixedly mounted on the other end of the corresponding U-shaped rod. The motor is fixedly mounted on the top of the base. The bottom end of the take-up roller is fixedly mounted on the output shaft of the motor. The top end of the take-up roller is rotatably connected to the bottom of the support plate. One end of each of the four transmission steel belts is fixedly mounted on the take-up roller, and the other end of each transmission steel belt is fixedly mounted on the corresponding slide rod.

[0016] As a preferred embodiment of this utility model, the bottom of the support plate is provided with four sliding grooves, and the top of the sliding rod is slidably connected in the corresponding sliding groove.

[0017] Beneficial effects:

[0018] 1. By setting four clamping plates and four U-shaped rods, multi-directional clamping of the workpiece can be achieved. The U-shaped rods can avoid slotting or drilling holes in the support plate, ensuring that the debris is concentrated on the top of the support plate, which is convenient for subsequent cleaning and will not affect the normal use of the transmission and clamping components. Here, the spring can drive the U-shaped rods and clamping plates away from the placement area and reset.

[0019] 2. By starting the motor, the take-up roller can be driven to rotate. When the take-up roller rotates, it can wind up the four transmission steel belts. At this time, the four transmission steel belts can pull the four slide bars closer to each other. Then, the slide bars can drive the U-shaped rod and the clamping plate to move closer to the workpiece in the placement area and achieve clamping and fixing.

[0020] This invention achieves stable and efficient fixation of the workpiece through a simple structure, while ensuring that debris is concentrated on the top of the support plate for easy subsequent cleaning, and does not affect the normal use of the transmission and clamping components, making it highly practical. Attached Figure Description

[0021] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0022] Figure 2 This is a bottom view of part of the structure of this utility model;

[0023] Figure 3 This is a three-dimensional structural diagram of the clamping plate, anti-slip pad, U-shaped rod, slip ring, spring, and slide bar of this utility model.

[0024] Figure 4 This is a three-dimensional structural diagram of the slide bar, motor, winding roller, and transmission steel belt of this utility model.

[0025] In the diagram: 1. Base; 2. Fixing rod; 3. Support plate; 4. Placement area; 5. Clamping plate; 6. Anti-slip pad; 7. U-shaped rod; 8. Slip ring; 9. Spring; 10. Slide rod; 11. Slide groove; 12. Motor; 13. Take-up roller; 14. Transmission steel belt. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Example

[0028] Reference Figures 1-4 A workpiece fixing device for a vertical machining center, comprising a base 1, the fixing device further comprising:

[0029] There are four fixing rods 2, and the bottom ends of the four fixing rods 2 are fixedly installed on the top of the base 1.

[0030] Support plate 3, the bottom of support plate 3 is fixedly installed to the top of four fixing rods 2 respectively;

[0031] The clamping assembly includes four clamping plates 5, four U-shaped rods 7, and four springs 9. The bottom of each of the four clamping plates 5 is slidably connected to the top of the support plate 3. One end of each U-shaped rod 7 is fixedly installed on one side of the corresponding clamping plate 5. One end of each of the four springs 9 is fixedly installed on the front, rear, left, and right sides of the support plate 3, respectively. The other end of each spring 9 is fixedly installed on the corresponding U-shaped rod 7.

[0032] The transmission assembly is located between the base 1 and the support plate 3, and the transmission assembly is respectively engaged with four U-shaped rods 7.

[0033] With the above structure, the workpiece can be clamped in multiple directions by setting four clamping plates 5 and four U-shaped rods 7. The U-shaped rods 7 can avoid slotting or drilling into the support plate 3, ensuring that the debris is concentrated on the top of the support plate 3, which is convenient for subsequent cleaning and will not affect the normal use of the transmission component and the clamping component. Here, the spring 9 can drive the U-shaped rods 7 and clamping plates 5 away from the placement area 4 and reset.

[0034] As a preferred embodiment of this utility model, the top of the support plate 3 is provided with a placement area 4, which facilitates the placement and positioning of the workpiece.

[0035] As a preferred embodiment of this utility model, an anti-slip pad 6 is fixedly installed on the other side of the clamping plate 5. By setting the anti-slip pad 6, the clamping stability of the workpiece can be improved.

[0036] As a preferred embodiment of this utility model, each of the four U-shaped rods 7 is slidably fitted with a slip ring 8. The bottom ends of the four slip rings 8 are respectively fixedly installed on the front, rear, left and right sides of the support plate 3. By setting the slip rings 8, the U-shaped rods 7 can be stably slidably limited and slidably supported.

[0037] As a preferred embodiment of this utility model, the transmission assembly includes four slide rods 10, a motor 12, a take-up roller 13, and four transmission steel belts 14. The top ends of the four slide rods 10 are slidably connected to the bottom of the support plate 3. One side of the slide rod 10 is fixedly installed on the other end of the corresponding U-shaped rod 7. The motor 12 is fixedly installed on the top of the base 1. The bottom end of the take-up roller 13 is fixedly installed on the output shaft of the motor 12. The top end of the take-up roller 13 is rotatably connected to the bottom of the support plate 3. One end of each of the four transmission steel belts 14 is fixedly installed on the take-up roller 13, and the other end of the transmission steel belts 14 is fixedly installed on the corresponding slide rod 10. By starting the motor 12, the take-up roller 13 can be driven to rotate. When the take-up roller 13 rotates, it can wind up the four transmission steel belts 14. At this time, the four transmission steel belts 14 can pull the four slide rods 10 closer to each other. At this time, the slide rods 10 can drive the U-shaped rod 7 and the clamping plate 5 to move closer to the workpiece on the placement area 4 and achieve clamping and fixing.

[0038] As a preferred embodiment of this utility model, the bottom of the support plate 3 is provided with four sliding grooves 11, and the top of the sliding rod 10 is slidably connected in the corresponding sliding groove 11. By providing the sliding grooves 11, the sliding rod 10 can be stably limited and supported.

[0039] It should be noted that the specific model of motor 12 used should be selected by those skilled in the art, and the motor 12 mentioned above is existing technology, so this solution will not elaborate on it.

[0040] The working principle of this utility model is as follows: In use, the motor 12 is first connected to an external power source. Then, by starting the motor 12, the take-up roller 13 can be driven to rotate. When the take-up roller 13 rotates, it can wind up the four transmission steel belts 14. At this time, the four transmission steel belts 14 can pull the four slide bars 10 closer to each other. At this time, the slide bars 10 can drive the U-shaped rod 7 and the clamping plate 5 to move closer to the workpiece on the placement area 4 and achieve clamping and fixing. Then, by setting the four clamping plates 5 and the four U-shaped rods 7, the workpiece can be clamped in multiple directions. The U-shaped rod 7 can avoid slotting or opening holes in the support plate 3, ensuring that the debris is concentrated on the top of the support plate 3, which is convenient for subsequent cleaning and will not affect the normal use of the transmission components and clamping components. Here, the spring 9 can drive the U-shaped rod 7 and the clamping plate 5 away from the placement area 4 and reset.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. Workpiece fixture for a vertical machining center, comprising a base (1), characterized in that, The fixing device also includes: Four fixing rods (2) are provided, and the bottom ends of the four fixing rods (2) are fixedly installed on the top of the base (1); Support plate (3), the bottom of which is fixedly installed to the top of four fixing rods (2); The clamping assembly includes: four clamping plates (5), four U-shaped rods (7) and four springs (9). The bottom of each of the four clamping plates (5) is slidably connected to the top of the support plate (3). One end of each U-shaped rod (7) is fixedly installed on one side of the corresponding clamping plate (5). One end of each of the four springs (9) is fixedly installed on the front, rear, left and right sides of the support plate (3) respectively. The other end of each spring (9) is fixedly installed on the corresponding U-shaped rod (7). The transmission assembly is disposed between the base (1) and the support plate (3), and the transmission assembly is respectively engaged with four U-shaped rods (7).

2. The workpiece fixing device for a vertical machining center according to claim 1, characterized in that, The top of the support plate (3) is provided with a placement area (4).

3. The workpiece fixing device for a vertical machining center according to claim 1, characterized in that, An anti-slip pad (6) is fixedly installed on the other side of the clamp (5).

4. The workpiece fixing device for a vertical machining center according to claim 1, characterized in that, Each of the four U-shaped rods (7) is slidably fitted with a slip ring (8), and the bottom ends of the four slip rings (8) are respectively fixedly installed on the front, rear, left and right sides of the support plate (3).

5. The workpiece fixing device for a vertical machining center according to claim 1, characterized in that, The transmission assembly includes four slide rods (10), a motor (12), a take-up roller (13), and four transmission steel belts (14). The top ends of the four slide rods (10) are slidably connected to the bottom of the support plate (3). One side of the slide rod (10) is fixedly installed on the other end of the corresponding U-shaped rod (7). The motor (12) is fixedly installed on the top of the base (1). The bottom end of the take-up roller (13) is fixedly installed on the output shaft of the motor (12). The top end of the take-up roller (13) is rotatably connected to the bottom of the support plate (3). One end of each of the four transmission steel belts (14) is fixedly installed on the take-up roller (13), and the other end of the transmission steel belts (14) is fixedly installed on the corresponding slide rod (10).

6. The workpiece fixing device for a vertical machining center according to claim 5, characterized in that, The bottom of the support plate (3) is provided with four sliding grooves (11), and the top of the slide rod (10) is slidably connected in the corresponding sliding groove (11).

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