Quick-change multi-station milling fixture

Abstract

The utility model relates to the technical field of milling fixture, disclose a quick change formula multistation milling fixture, including bottom plate, the upper surface front and back both sides edge department of bottom plate all are fixedly connected with the limit board, the upper surface of bottom plate is located between two limit boards and is provided with a plurality of clamping pieces from left to right, the upper surface of bottom plate is located at the left of two limit boards and is jointly fixed with the vertical board of having, the inside of vertical board is provided with the pusher, the utility model discloses through setting up a plurality of clamping blocks and the movable block and the fixed block of being located at both ends that can slide left and right, cooperate pusher, after placing a plurality of milling workpieces in the position between adjacent clamping blocks, movable block and the leftmost clamping block and the fixed block and the rightmost clamping block between, only need to rotate the screw pipe to drive the push plate to push movable block, all clamping blocks are moved right simultaneously to linkage, make movable block, all clamping blocks and fixed block mutually draw together, simultaneously, quickly and stably clamp a plurality of workpieces between adjacent clamping groove no.

Description

Technical Field

[0001] This utility model relates to the field of milling fixture technology, specifically a quick-change multi-station milling fixture. Background Technology

[0002] In the machining industry, especially in CNC milling, fixtures are key process equipment for ensuring workpiece positioning accuracy, clamping reliability, and machining efficiency. In existing technologies, milling fixtures are mostly designed to clamp rectangular blocks. When clamping polygonal or angular objects, problems arise such as unstable clamping, insecure clamping, and wear on the edges, thus affecting machining accuracy.

[0003] A Chinese patent discloses a multi-station milling fixture device (authorization announcement number CN216463155U). The patented technology includes:

[0004] When the second sleeve pushes the second round rod forward, it can increase the contact area of ​​the second clamping plate with the corner of the item, and at the same time, it can perform secondary clamping on the corner of the item, making the item clamped more stably. When the first clamping plate slides close to the second clamping plate, it can clamp the item and fix it on the clamp.

[0005] When the first round rod is not subjected to external force, it is in an extended state, which protects the internal mechanism and prevents it from colliding with the object as much as possible. It also prevents the internal mechanism from contacting the object prematurely, thus fixing the object's position and preventing it from moving. When it is necessary to clamp the object, the first round rod slides into the first sleeve under the action of external force, thereby exposing the internal mechanism and clamping the object. A sliding groove is provided so that the second slider can slide within the groove. This allows the first round rod to expand to both sides during the force process, making the clamping of the object by the first round rod more stable.

[0006] However, it has certain drawbacks: its structural design and operating mechanism are mainly optimized for the clamping and unclamping process of a single workpiece. When multiple workpieces need to be clamped or unclamped in sequence, the operator must place the workpieces one by one and operate the clamping mechanism one by one (such as turning the handle to drive the screw). After the processing is completed, the workpieces need to be unclamped and removed one by one. This one-by-one operation mode greatly increases the auxiliary time and reduces the production efficiency, and is especially unsuitable for milling processing occasions that require high efficiency and batch processing. Utility Model Content

[0007] The purpose of this invention is to provide a quick-change multi-station milling fixture to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A quick-change multi-station milling fixture includes a base plate, with limiting plates fixed to the front and rear edges of the upper surface of the base plate. A limiting groove is formed at the lower end of the opposite side surface of the two limiting plates. Multiple clamping components are arranged from left to right on the upper surface of the base plate between the two limiting plates.

[0010] The upper surface of the base plate is located between the two limiting plates and is movably connected to the left of the leftmost clamping member. The upper surface of the base plate is located to the right of the two limiting plates and is fixedly connected to a fixed block. The right side surface of the moving block and the left side surface of the fixed block are both provided with clamping grooves.

[0011] The upper surface of the base plate is fixed to a vertical plate on the left side of the two limiting plates, and a pushing component is provided inside the vertical plate.

[0012] As a further embodiment of this utility model: the clamping member includes a clamping block, and the upper ends of the front and rear surfaces of the clamping block are provided with limiting grooves II, and the left and right surfaces of the clamping block are provided with clamping grooves I.

[0013] As a further embodiment of this utility model: the pushing component includes a pedestal bearing, a spiral tube is installed inside the pedestal bearing, a screw rod is threadedly connected inside the spiral tube, a push plate is fixedly connected to the right end of the screw rod, push rods are fixedly connected to the left side surface of the push plate on both the front and rear sides of the screw rod, and a hexagonal block is fixedly sleeved on the outside of the spiral tube on the left side of the pedestal bearing.

[0014] As a further improvement of this utility model, the limiting groove extends to the lower surface and the left and right side surfaces of the limiting plate.

[0015] As a further embodiment of this utility model: the second limiting groove extends to the upper surface and the left and right side surfaces of the clamping block, the first clamping groove and the second clamping groove have the same shape, and the first clamping groove is directly opposite the second clamping groove.

[0016] As a further embodiment of this utility model: the pedestal bearing is fixed to the left side surface of the vertical plate, the screw tube movably penetrates the vertical plate, the push plate is directly opposite the moving block, and the push rod movably penetrates the vertical plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] This invention features multiple sliding clamping blocks and moving and fixed blocks at both ends, along with a pusher consisting of a screw tube, screw rod, push plate, and push rod. After placing multiple workpieces to be milled between adjacent clamping blocks, between the moving block and the leftmost clamping block, and between the fixed block and the rightmost clamping block, simply turning the screw tube counterclockwise with a wrench drives the pusher to push the moving block, causing all clamping blocks to move synchronously to the right. This brings the moving block, all clamping blocks, and fixed blocks closer together, simultaneously, quickly, and securely clamping multiple workpieces in the V-shaped clamping opening formed between adjacent clamping slots and between clamping slot one and clamping slot two (located to the right of the moving block and the left of the fixed block). After processing, turning the screw tube clockwise moves the pusher to the left, releasing the pressure on the moving block. The clamping blocks and moving block can then easily reset, and all workpieces are released simultaneously. This facilitates the quick removal of the processed workpiece and replacement with a new one, significantly improving clamping efficiency and greatly reducing the auxiliary time for changing workpieces. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a quick-change multi-station milling fixture;

[0020] Figure 2 for Figure 1 Enlarged view of A in the middle;

[0021] Figure 3 This is a schematic diagram of the clamping components in a quick-change multi-station milling fixture;

[0022] Figure 4 This is a schematic diagram of the pusher component in a quick-change multi-station milling fixture.

[0023] In the diagram: 1. Base plate; 2. Limiting plate; 3. Limiting groove one; 4. Clamping component; 5. Clamping block; 6. Limiting groove two; 7. Clamping groove one; 8. Moving block; 9. Fixed block; 10. Clamping groove two; 11. Vertical plate; 12. Pushing component; 13. Seat bearing; 14. Screw tube; 15. Screw; 16. Push plate; 17. Push rod; 18. Hexagonal block. Detailed Implementation

[0024] Please see Figures 1-3 In this embodiment of the utility model, a quick-change multi-station milling fixture includes a base plate 1. Limiting plates 2 are fixedly connected to the front and rear edges of the upper surface of the base plate 1. Limiting grooves 3 are formed at the lower ends of the opposite side surfaces of the two limiting plates 2. Limiting grooves 3 extend to the lower surface and the left and right side surfaces of the limiting plates 2. Multiple clamping members 4 are arranged from left to right on the upper surface of the base plate 1 between the two limiting plates 2. The clamping members 4 include clamping blocks 5. Limiting grooves 6 are formed at the upper ends of the front and rear side surfaces of the clamping blocks 5. Limiting grooves 6 extend to the upper surface and the left and right side surfaces of the clamping blocks 5. Clamping grooves 7 are formed on the left and right side surfaces of the clamping blocks 5.

[0025] The upper surface of the base plate 1 is located between the two limiting plates 2 and is movably connected to the left of the leftmost clamping member 4. The upper surface of the base plate 1 is located to the right of the two limiting plates 2 and is fixedly connected to the fixed block 9. The right side surface of the moving block 8 and the left side surface of the fixed block 9 are both provided with clamping groove 2 10. The clamping groove 1 7 and clamping groove 2 10 have the same shape, and clamping groove 1 7 is directly opposite clamping groove 2 10.

[0026] The upper end of the limiting plate 2 is located in the limiting groove 2 6, and the two fit together. The lower end of the clamping block 5 is located in the limiting groove 1 3, and the two also fit together, forming a bidirectional sliding pair, so that the clamping block 5 can only move horizontally along the left and right directions of the base plate 1, and there will be no displacement in other directions.

[0027] The workpiece to be milled is placed between adjacent clamping blocks 5, between the moving block 8 and the leftmost clamping block 5, and between the fixed block 9 and the rightmost clamping block 5, forming a continuous clamping station;

[0028] Both the first clamping groove 7 and the second clamping groove 10 are preferably V-shaped, which facilitates clamping and fixing cylindrical workpieces of different diameters.

[0029] exist Figure 1 and Figure 4 In the middle: The upper surface of the base plate 1 is fixedly connected to the left side of the two limiting plates 2. The vertical plate 11 is provided with a pusher 12. The pusher 12 includes a seat bearing 13. The seat bearing 13 is fixedly connected to the left side surface of the vertical plate 11. The seat bearing 13 is installed with a screw tube 14. The screw tube 14 moves through the vertical plate 11. The screw tube 14 is threadedly connected to a screw rod 15. The right end of the screw rod 15 is fixedly connected to a push plate 16. The push plate 16 is directly opposite the moving block 8. The left side surface of the push plate 16 is fixedly connected to push rods 17 on both the front and rear sides of the screw rod 15. The push rods 17 move through the vertical plate 11. The outside of the screw tube 14 is fixedly sleeved with a hexagonal block 18 on the left side of the seat bearing 13.

[0030] The pedestal bearing 13 includes a bearing housing and a bearing fixed inside the bearing housing. The bearing includes an outer bearing ring and an inner bearing ring that rotates inside the outer bearing ring. The outer bearing ring is fixed in the bearing housing, and the bearing housing is fixed to the left side surface of the vertical plate 11. The screw tube 14 is fixed in the inner bearing ring. Therefore, the pedestal bearing 13 and the screw tube 14 are in a state of mutual rotation.

[0031] Rotating the solenoid 14 counterclockwise can drive the screw 15 to move to the right, thereby pushing the moving block 8 through the push plate 16, so that the moving block 8, the clamping member 4 and the fixed block 9 can clamp and fix multiple workpieces to be milled at the same time.

[0032] The hexagonal block 18 makes it easy to use a wrench to clamp the screw tube 14, thus making it easy to rotate the screw tube 14.

[0033] The working principle of this utility model is as follows: When placing the workpiece to be milled, it is positioned between two adjacent clamping blocks 5, between the moving block 8 and the leftmost clamping block 5, and between the fixed block 9 and the rightmost clamping block 5. Then, a wrench is used to clamp the hexagonal block 18 and the screw tube 14 is rotated counterclockwise. The screw tube 14 rotates within the seat bearing 13, driving the threaded screw 15 to move to the right. The screw 15 drives the push plate 16 and the push rod 17 to move to the right together. The push plate 16 pushes the moving block 8 to move to the right. The moving block 8 pushes the clamping member 4 on its right side to move to the right in sequence. The movement eventually brings all the clamping blocks 5, moving blocks 8, and fixed blocks 9 closer together, pressing each workpiece between adjacent clamping slots 1-7 (located on the left and right sides of clamping blocks 5) and between clamping slots 1-7 and clamping slots 2-10 (located on the right side of moving blocks 8 and the left side of fixed blocks 9), achieving simultaneous and rapid clamping and fixing of multiple workpieces. After the milling is completed, the screw tube 14 is rotated clockwise to move the screw 15, push plate 16, and push rod 17 to the left. The push plate 16 no longer abuts against the moving block 8, and at this time, the moving blocks 8 and clamping blocks 5 no longer clamp the workpieces, so that all the processed workpieces can be removed.

[0034] 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.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A quick-change multi-station milling fixture, characterized in that, Includes a base plate (1), and a limiting plate (2) is fixedly attached to the front and rear edges of the upper surface of the base plate (1). A limiting groove (3) is opened at the lower end of the opposite side surface of the two limiting plates (2). Multiple clamping parts (4) are arranged from left to right on the upper surface of the base plate (1) between the two limiting plates (2). The upper surface of the base plate (1) is located between the two limiting plates (2) and is movably connected to the left of the leftmost clamping member (4). The upper surface of the base plate (1) is located to the right of the two limiting plates (2) and is fixedly connected to a fixed block (9). The right side surface of the moving block (8) and the left side surface of the fixed block (9) are both provided with clamping grooves (10). The upper surface of the base plate (1) is fixed to the left of the two limiting plates (2) with a vertical plate (11), and a pusher (12) is provided inside the vertical plate (11).

2. The quick-change multi-station milling fixture according to claim 1, characterized in that, The clamping member (4) includes a clamping block (5), and a second limiting groove (6) is provided on the upper end of both the front and rear surfaces of the clamping block (5), and a first clamping groove (7) is provided on both the left and right surfaces of the clamping block (5).

3. A quick-change multi-station milling fixture according to claim 1, characterized in that, The pusher (12) includes a seat bearing (13), inside which a screw tube (14) is installed. The screw tube (14) is threadedly connected to a screw rod (15). A push plate (16) is fixedly connected to the right end of the screw rod (15). Push rods (17) are fixedly connected to the left side surface of the push plate (16) on both the front and rear sides of the screw rod (15). A hexagonal block (18) is fixedly sleeved on the outside of the screw tube (14) on the left side of the seat bearing (13).

4. A quick-change multi-station milling fixture according to claim 1, characterized in that, The limiting groove (3) extends to the lower surface and the left and right side surfaces of the limiting plate (2).

5. A quick-change multi-station milling fixture according to claim 2, characterized in that, The second limiting groove (6) extends to the upper surface and the left and right side surfaces of the clamping block (5). The first clamping groove (7) and the second clamping groove (10) have the same shape, and the first clamping groove (7) is directly opposite the second clamping groove (10).

6. A quick-change multi-station milling fixture according to claim 3, characterized in that, The pedestal bearing (13) is fixed to the left side surface of the vertical plate (11), the solenoid (14) moves through the vertical plate (11), the push plate (16) is directly opposite the moving block (8), and the push rod (17) moves through the vertical plate (11).

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