An automatic centering and tensioning protection mechanism

Abstract

The present invention discloses an automatic centering tensioning protection mechanism, comprising an A plate and a B plate, wherein a connecting portion protruding and not coplanar with the B plate is provided on the B plate, and the connecting portion is connected to a threaded hole provided on the tensioning plate by a bolt, and a plurality of tensioning long holes are evenly distributed on the tensioning plate, and the protection mechanism also comprises a special-shaped tensioning member, wherein the special-shaped tensioning member is provided with a large frustum portion at the bottom, an eccentric circle portion in the middle and a small frustum portion at the top in sequence from bottom to top, and the eccentric circle portion is connected to the tensioning long hole on the tensioning plate, and a plurality of positioning holes corresponding to the special-shaped tensioning member are provided on the A plate, and the positioning holes match the small frustum portion, and a special-shaped hole is provided in the special-shaped tensioning member, and the special-shaped hole is coaxial with the large frustum portion and the small frustum portion, and the special-shaped hole consists of an inner hexagonal hole and a threaded hole, and a mounting hole matching the position of the positioning hole is provided on the A plate.

Description

Technical Field

[0001] The invention relates to the field of equipment protection, in particular to an automatic centering and tensioning protection mechanism. Background Art

[0002] In actual production activities, many mechanical equipment need to be installed with protective plates to protect the normal operation of the internal mechanisms of the equipment. Taking the square slide ram type machine tool as an example, a circle of sealing rings is set on the outside of its square protection. This sealing ring can prevent the coolant and chips in the cutting area from crossing the protection to the back of the machine tool. This requires that the joints between the two protective plates forming the protection must be tightly fitted, and the screws used should be as few as possible. If there is a gap at the joint, it is very easy to be mixed with very small chips, which will cause fatal damage to the sealing ring and cause it to lose its sealing function. Many protective plates have the above problems. Therefore, a method or device that can solve the above problems is now needed. Summary of the invention

[0003] The present invention aims to solve the above-mentioned deficiencies in the prior art and proposes an automatic centering and tightening protective mechanism with a simple structure, ingenious design, and reasonable layout, which can ensure a tight and precise fit between the joints of the two protective plates while minimizing the number of screws, thereby achieving better protective effects.

[0004] The technical solution of the present invention is: an automatic centering tensioning protection mechanism, comprising an A plate 1 and a B plate 2, characterized in that: the B plate 2 is provided with a protruding connecting portion 3 that is not coplanar with the B plate 2, the connecting portion 3 is connected to a threaded hole provided on a tensioning plate 4 by a bolt, the tensioning plate 4 is provided with a plurality of tensioning long holes 5 distributed equidistantly, the protection mechanism also includes a special-shaped tensioning member 6, the special-shaped tensioning member 6 is provided with a large frustum portion 7 at the bottom, an eccentric circle portion 8 in the middle and a small frustum portion at the top in sequence from bottom to top 9, the eccentric circular part 8 is connected to the tightening long hole 5 on the tensioning plate 4, and the A plate 1 is provided with a plurality of positioning holes 10 corresponding to the special-shaped tensioning members 6, and the positioning holes 10 match the small frustum part 9. A special-shaped hole 11 is opened in the special-shaped tensioning member 6, and the special-shaped hole 11 is coaxial with the large frustum part 7 and the small frustum part 9. The special-shaped hole 11 consists of an inner hexagonal hole and a threaded hole, wherein the inner hexagonal hole is located in the small frustum part 9, and the threaded hole is located in the eccentric circular part 8 and the large frustum part 7.

[0005] Compared with the prior art, the present invention has the following advantages:

[0006] This type of automatic centering and tightening protection mechanism has a simple structure, ingenious design and reasonable layout. It is designed to solve the structural defects of traditional protection. It uses a special-shaped part to cooperate with a tensioning plate with a long hole to adjust the gap between the two plates. The eccentric circle part in the middle of the special-shaped part is connected to the long hole of the tensioning plate. The special-shaped part is connected to one protection plate, and the tensioning plate is connected to the other protection plate. By rotating the special-shaped part, the two protection plates can be automatically centered and tightened, thereby eliminating the gap between them. This special structure does not increase the number of mounting screws, which can minimize the possibility of damaging the scraping strip on the outer side of the protection. Since its installation difficulty is greatly reduced, the experience and skills of the operator are also relatively low, thereby ensuring the assembly quality. In addition, its manufacturing process is simple and the manufacturing cost is low. Therefore, it can be said that it has many advantages and is particularly suitable for promotion and application in this field. Its market prospects are very broad. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 Schematic diagram of the working state of an embodiment of the present invention.

[0008] Figure 2 Schematic diagram of the structure of the tensioning plate part in an embodiment of the present invention.

[0009] Figure 3 It is a front view of the special-shaped tensioning member in the embodiment of the present invention.

[0010] Figure 4 yes Figure 3 AA section view in.

[0011] Figure 5 It is a schematic diagram of the three-dimensional structure of the special-shaped tensioning member in the embodiment of the present invention.

[0012] Figure 6 It is a cross-sectional view of the embodiment of the present invention when it is in a connected state. DETAILED DESCRIPTION

[0013] The specific implementation of the present invention will be described below with reference to the accompanying drawings. Figures 1 to 6As shown: an automatic centering tensioning protection mechanism, comprising an A plate 1 and a B plate 2, a connecting portion 3 protruding and not coplanar with the B plate 2 is provided on the B plate 2, the connecting portion 3 is connected to a threaded hole provided on a tensioning plate 4 by a bolt, a plurality of tensioning long holes 5 are evenly distributed on the tensioning plate 4, the protection mechanism also comprises a special-shaped tensioning member 6, the special-shaped tensioning member 6 is sequentially provided with a large frustum portion 7 at the bottom, an eccentric circular portion 8 in the middle and a small frustum portion 9 at the top from bottom to top, the eccentric circular portion The A plate 1 is provided with a plurality of positioning holes 10 corresponding to the special-shaped tensioning members 6, and the positioning holes 10 match the small frustum part 9. The special-shaped tensioning member 6 is provided with a special-shaped hole 11, and the special-shaped hole 11 is coaxial with the large frustum part 7 and the small frustum part 9. The special-shaped hole 11 consists of an inner hexagonal hole and a threaded hole, wherein the inner hexagonal hole is located in the small frustum part 9, and the threaded hole is located in the eccentric circle part 8 and the large frustum part 7.

[0014] The working process of the automatic centering tensioning protection mechanism of the embodiment of the present invention is as follows: first, a plurality of special-shaped tensioning members 6 are respectively connected to the tensioning plate 4, specifically, the eccentric circular portion 8 on the special-shaped tensioning member 6 is connected to the tensioning long hole 5 on the tensioning plate 4, at this time, the large frustum portion 7 is located on the back side of the tensioning plate 4, and the small frustum portion 9 protrudes from the tensioning plate 4; then, the connecting portion 3 on the B plate 2 is fixedly connected to the tensioning plate 4 by bolts; finally, the small frustum portion 9 is inserted into the positioning hole 10 on the A plate 1, at this time, the A plate 1 and the B plate 2 are connected to each other through the tensioning plate 4 and the special-shaped tensioning member 6, but a gap is left between the two;

[0015] The operator takes a hexagonal wrench, inserts the end of the wrench through the positioning hole 10 on the A plate 1 and then into the special-shaped hole 11 inside the special-shaped tensioning piece 6, specifically into the hexagonal hole part, and turns the wrench to drive the special-shaped tensioning piece 6 to rotate. At this time, the eccentric circle part 8 on the special-shaped tensioning piece 6 will rotate relatively in the tensioning long hole 5, thereby pushing the tensioning plate 4 to move upward as a whole, and then driving the B plate 2 to move toward the direction of the A plate 1. When all the special-shaped tensioning pieces 6 are rotated into place, the A plate 1 and the B plate 2 are tightly attached to each other, and the gap between them is completely closed;

[0016] Then, a bolt is inserted into the special-shaped hole 11, and the threaded hole portion in the rear half of the special-shaped hole 11 is used to fix the special-shaped tensioning member 6 to the A plate 1, thereby realizing the connection between the two protective plates (A plate 1 and B plate 2); the gap of this connection structure is tightly closed, which can effectively play a protective role, and there is no need to open additional threaded holes on the A plate 1 or the B plate 2, thereby reducing the possibility of protection failure.

Claims

1. An automatic centering and tensioning protection mechanism, comprising a plate A (1) and a plate B (2), characterized in that: The B plate (2) is provided with a connecting portion (3) which is protruding and not coplanar with the B plate (2); the connecting portion (3) is connected to a threaded hole provided on the tensioning plate (4) by means of a bolt; a plurality of tensioning elongated holes (5) are equidistantly distributed on the tensioning plate (4); the protective mechanism further comprises a special-shaped tensioning member (6); the special-shaped tensioning member (6) is provided with a large frustum portion (7) at the bottom, an eccentric circular portion (8) in the middle, and a small frustum portion (9) at the top in sequence from bottom to top; the eccentric circular portion (8) is connected to the tensioning elongated hole (5) on the tensioning plate (4); The A plate (1) is provided with a plurality of positioning holes (10) corresponding to the special-shaped tensioning members (6) one by one, the positioning holes (10) match the small truncated cone portion (9), the special-shaped tensioning member (6) is provided with a special-shaped hole (11), the special-shaped hole (11) is coaxial with the large truncated cone portion (7) and the small truncated cone portion (9), and the special-shaped hole (11) consists of an inner hexagonal hole and a threaded hole, wherein the inner hexagonal hole is located in the small truncated cone portion (9), and the threaded hole is located in the eccentric circular portion (8) and the large truncated cone portion (7).

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