Anti-pressing and anti-unthreading structure

Abstract

The utility model discloses a kind of anti-pressing and unthreading structure, it is related to unthreading technical field.The utility model includes bottom plate, and bottom plate surface is provided with table plate, further include direction-changing compression assembly, direction-changing compression assembly includes advancing stage, and the sliding fit between advancing stage and table plate, two symmetrical slide grooves are opened in table plate surface, and cooperating arc plate is slidably connected in slide groove, and trapezoidal plate is fixedly connected in the bottom surface of advancing stage, and cooperating arc plate is fixedly connected with slide strip in the side surface close to trapezoidal plate, and two opposite side surfaces of trapezoidal plate are all opened with cooperation groove, and the sliding fit between slide strip and cooperation groove, and placing groove is opened in bottom plate, and workpiece is inserted into placing groove, and first electric telescopic rod is fixedly connected on bottom plate surface, the utility model is pressed tightly from inside to outside by two cooperating arc plates, can effectively hold it by avoiding workpiece unthreading, and unthreading can be individually fixed in the process of clamping, to improve the stability of workpiece in processing process.

Description

Technical Field

[0001] This utility model relates to the field of detachable buckle structure technology, and in particular to an anti-compression detachable buckle structure. Background Technology

[0002] An undercut refers to a structure on a workpiece that is recessed inward or tilted in the opposite direction.

[0003] When machining ordinary workpieces, clamping can be achieved by having the two clamping fixtures move in a straight line close together. However, when clamping workpieces with undercuts, the straight-line movement of the clamping fixtures is blocked by the undercut structure, making direct clamping impossible. To overcome this difficulty, existing technologies typically employ a clamping method that avoids the undercut portion of the workpiece. This usually requires adjusting the size of the clamping fixture to avoid the undercut area and clamp other parts of the workpiece.

[0004] However, after changing the size of the fixture, the actual contact area between the fixture and the workpiece decreases, the static friction between them decreases, and the clamping force of the fixture on the workpiece weakens, which can easily cause the workpiece to shake during processing. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art where the workpiece is affected by the undercut, the clamping fixture needs to avoid the undercut, which reduces the clamping force and makes it easy to shake. Therefore, this invention proposes an anti-clamping and anti-undercutting structure.

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

[0007] A structure for preventing clamping and detachment is designed, comprising a base plate, a platform on the surface of the base plate, and a reversing clamping assembly, the reversing clamping assembly including a push platform, the push platform and the platform slidingly engaged, two symmetrical sliding grooves on the surface of the platform, a mating arc plate slidably connected in the sliding groove, a trapezoidal plate fixedly connected to the bottom surface of the push platform, slide bars fixedly connected to the sides of the mating arc plate near the trapezoidal plate, mating grooves on two opposite sides of the trapezoidal plate, slide bars slidably engaged with the mating grooves, a placement groove in the base plate, a workpiece inserted into the placement groove, and a first electric telescopic rod fixedly connected to the surface of the base plate, the output end of the first electric telescopic rod being fixedly connected to the push platform.

[0008] Preferably, an ear plate is fixedly connected to the side of the push platform, a slide rod is fixedly connected to the side of the ear plate, a movable plate is slidably connected to the periphery of the slide rod, two slide seats are symmetrically fixedly connected to the surface of the platform, a linear rack is slidably connected inside the slide seats, the movable plate is fixedly connected to the linear rack, and a spring is fixedly connected to the movable plate and the ear plate.

[0009] Preferably, the surface of the platform has two first support plates symmetrically slidably connected, and a first arc-shaped rack is fixedly connected to the first support plate. The surface of the platform also has two second support plates symmetrically slidably connected, and a second arc-shaped rack is fixedly connected to the second support plate.

[0010] Preferably, the base plate surface is symmetrically rotatably connected with gears, the gears meshing with a linear rack, and the first arc-shaped rack and the second arc-shaped rack meshing with corresponding gears.

[0011] Preferably, an extension plate is fixedly connected to the side of the first arc-shaped rack.

[0012] Preferably, a second electric telescopic rod is fixedly connected to the platform, and the output end of the second electric telescopic rod is fixedly connected to the base plate.

[0013] Preferably, the first and second arc-shaped racks are at the same distance from the base plate.

[0014] Preferably, a gap is left between the extension plate and the second arc-shaped rack.

[0015] The present invention proposes an anti-clamping and anti-disengagement structure, which has the following advantages: the present invention moves a trapezoidal plate, which pushes two mating arc plates to move in opposite directions from the inside to the outside, thereby avoiding the workpiece from being clamped and effectively clamping the workpiece. During the clamping process, the spring is pulled, and the spring pushes the first arc-shaped rack and the second arc-shaped rack to fix the clamping position separately, thereby improving the stability of the workpiece during the processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a structure for preventing clamping and unfastening.

[0017] Figure 2 This is a schematic diagram of the tabletop structure of this utility model from below.

[0018] Figure 3 This is an assembly drawing of the propulsion platform and ear plate of this utility model.

[0019] Figure 4 This is an assembly drawing of the gear and linear rack of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Base plate; 2. Platform; 3. First electric telescopic rod; 4. Pushing platform; 5. Trapezoidal plate; 6. Ear plate; 7. Slide rod; 8. Moving plate; 9. Spring; 10. Linear rack; 11. Gear; 12. First arc rack; 13. Second arc rack; 14. Extension plate; 15. Slide seat; 16. Second support plate; 17. First support plate; 18. Workpiece; 19. Slide groove; 20. Mating arc plate; 21. Slide bar; 22. Mating groove. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] Reference Figure 1-4 This utility model is an anti-clamping and anti-disengagement buckling structure, including a base plate 1, a platform 2 on the surface of the base plate 1, and a reversing clamping assembly, which includes a push platform 4. The push platform 4 and the platform 2 are slidably engaged. Two sliding grooves 19 are symmetrically opened on the surface of the platform 2. A mating arc plate 20 is slidably connected in the sliding grooves 19. A trapezoidal plate 5 is fixedly connected to the bottom surface of the push platform 4. Sliding strips 21 are fixedly connected to the sides of the mating arc plate 20 near the trapezoidal plate 5. A mating groove 22 is opened on two opposite sides of the trapezoidal plate 5. The sliding strips 21 and the mating grooves 22 are slidably engaged. A placement groove is opened in the base plate 1. A workpiece 18 is inserted into the placement groove. A first electric telescopic rod 3 is fixedly connected to the surface of the base plate 1. The output end of the first electric telescopic rod 3 is fixedly connected to the push platform 4.

[0025] The operation process of this embodiment is as follows: When processing workpiece 18, after initially positioning workpiece 18 in the placement slot, the first electric telescopic rod 3 pushes the advancement platform 4 and trapezoidal plate 5 to move. Under the influence of the pushing force of trapezoidal plate 5, the two mating arc plates 20 move towards the position of workpiece 18 along their respective corresponding sliding grooves 19. The platform 2 abuts against the outer wall of workpiece 18, and the mating arc plates 20 cooperate with the platform 2. The two mating arc plates 20 move synchronously in opposite directions in a straight line, clamping workpiece 18 from the inside out. Figure 1 As shown, the workpiece 18 has an inwardly recessed undercut. By clamping it in this way, the clamp can be prevented from being blocked by the undercut of the workpiece 18 during the clamping process, and the workpiece 18 can be effectively fixed, avoiding shaking during the processing, thereby improving the work quality.

[0026] Example 2

[0027] The two mating arc plates 20 move synchronously in opposite directions, fixing the workpiece 18 from the inside out. The fixing effect is good, and it is not obstructed by the undercut during clamping. However, the undercut portion of the workpiece 18 is not effectively clamped, and there is still a risk of workpiece 18 shaking during processing. Therefore, please refer to [the relevant documentation]. Figure 2-3 Based on the first specific embodiment, the side of the push platform 4 is fixedly connected to an ear plate 6, the side of the ear plate 6 is fixedly connected to a slide rod 7, the side of the slide rod 7 is slidably connected to a moving plate 8, the surface of the platform 2 is symmetrically fixedly connected to two slide seats 15, the slide seats 15 are slidably connected to a linear rack 10, the moving plate 8 is fixedly connected to the linear rack 10, the moving plate 8 is fixedly connected to the ear plate 6, the surface of the platform 2 is symmetrically slidably connected to two first support plates 17, the first support plates 17 are fixedly connected to a first arc-shaped rack 12, the surface of the platform 2 is symmetrically slidably connected to two second support plates 16, the second support plates 16 are fixedly connected to a second arc-shaped rack 13, the surface of the base plate 1 is symmetrically rotatably connected to a gear 11, the gear 11 meshes with the linear rack 10, the first arc-shaped rack 12 and the second arc-shaped rack 13 mesh with the corresponding gear 11, and the side of the first arc-shaped rack 12 is fixedly connected to an extension plate 14.

[0028] The operation process of this embodiment is as follows: the push platform 4 moves, driving the ear plate 6 to move. In the initial state, neither the first arc-shaped rack 12 nor the second arc-shaped rack 13 is in contact with the workpiece 18 undercut. At this time, as the push platform 4 moves, the ear plate 6 stretches the spring 9. The spring 9 pulls the moving plate 8 and the linear rack 10 to move. Since the linear rack 10 and the gear 11 mesh with each other, the gear 11 rotates, driving its corresponding first arc-shaped rack 12 and second arc-shaped rack 13 to move closer to each other. The extension plate 14 on the first arc-shaped rack 12 and the second arc-shaped rack 13 both move toward the undercut position of the workpiece 18. During the process of the push platform 4 moving to clamp the workpiece 18, the undercut position can be clamped. During the clamping process, the undercut position of the workpiece 18 can be fixed separately, thereby further improving the fixing effect of the workpiece 18.

[0029] Example 3

[0030] Workpiece 18 is inserted into the base plate 1 and limited by the outer wall. Then, two mating arc plates 20 on the platform 2 extend from the inside to the outside to complete the clamping. During the clamping process, the first arc-shaped rack 12 and the second arc-shaped rack 13 move closer to each other and fix the undercut position of workpiece 18. However, there are many fixing positions, making it difficult to remove workpiece 18. Therefore, please refer to [the relevant documentation]. Figure 3-4 Based on the first specific embodiment, a second electric telescopic rod is fixedly connected to the platform 2. The output end of the second electric telescopic rod is fixedly connected to the base plate 1. The first arc-shaped rack 12 and the second arc-shaped rack 13 are at the same distance from the base plate 1. A gap is left between the extension plate 14 and the second arc-shaped rack 13.

[0031] The operation process of this embodiment is as follows: When released, the first electric telescopic rod 3 retracts, pulling the two mating arc plates 20 to move inward, releasing the clamping of the workpiece 18. At this time, the push table 4 pulls the spring 9 back to its original position, the gear 11 rotates again, and the first arc rack 12 and the second arc rack 13 are reset, which can simultaneously release the clamping of the workpiece 18, thereby facilitating the removal of the workpiece 18 and improving work efficiency.

[0032] 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. A structure for preventing clamping and unfastening, comprising a base plate (1), wherein a platform (2) is provided on the surface of the base plate (1), characterized in that: It also includes a reversing clamping assembly, which includes a push platform (4), which slides with the platform (2). The platform (2) has two symmetrically opened sliding grooves (19) on its surface. A matching arc plate (20) is slidably connected in the sliding groove (19). A trapezoidal plate (5) is fixedly connected to the bottom surface of the push platform (4). A sliding strip (21) is fixedly connected to the side of the matching arc plate (20) near the trapezoidal plate (5). A matching groove (22) is opened on the two opposite sides of the trapezoidal plate (5). The sliding strip (21) slides with the matching groove (22). A placement groove is opened in the bottom plate (1). A first electric telescopic rod (3) is fixedly connected to the surface of the bottom plate (1). The output end of the first electric telescopic rod (3) is fixedly connected to the push platform (4).

2. The anti-clamping and anti-disengagement buckle structure according to claim 1, characterized in that, The propulsion platform (4) is fixedly connected to the side of the ear plate (6), the ear plate (6) is fixedly connected to the side of the slide rod (7), the slide rod (7) is slidably connected to the periphery of the sliding plate (7), the platform (2) is symmetrically fixedly connected to two slide seats (15), the slide seats (15) are slidably connected to a linear rack (10), the moving plate (8) is fixedly connected to the linear rack (10), and the moving plate (8) is fixedly connected to the ear plate (6) with a spring (9).

3. The anti-clamping and anti-disengagement buckle structure according to claim 1, characterized in that, The platform (2) has two first support plates (17) symmetrically slidably connected to its surface. A first arc-shaped rack (12) is fixedly connected to the first support plate (17). The platform (2) has two second support plates (16) symmetrically slidably connected to its surface. A second arc-shaped rack (13) is fixedly connected to the second support plate (16).

4. The anti-clamping and anti-disengagement buckle structure according to claim 3, characterized in that, The base plate (1) is symmetrically rotatably connected with gears (11), and the gears (11) mesh with the straight rack (10). The first arc rack (12) and the second arc rack (13) mesh with the corresponding gears (11).

5. The anti-clamping and anti-disengagement buckle structure according to claim 4, characterized in that, An extension plate (14) is fixedly connected to the side of the first arc-shaped rack (12).

6. The anti-clamping and anti-disengagement buckle structure according to claim 1, characterized in that, A second electric telescopic rod is fixedly connected to the platform (2), and the output end of the second electric telescopic rod is fixedly connected to the base plate (1).

7. The anti-clamping and anti-disengagement buckle structure according to claim 3, characterized in that, The first arc-shaped rack (12) and the second arc-shaped rack (13) are at the same distance from the base plate (1).

8. The anti-clamping and anti-disengagement buckle structure according to claim 3, characterized in that, A gap is left between the extension plate (14) and the second arc-shaped rack (13).

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