CN202607530U - Push-pull self-locking clamp - Google Patents

Abstract

The utility model discloses a push-and-pull auto-lock anchor clamps, place clamping mechanism and self-locking mechanism in the fixed plate in, including the fixed plate. A gap is arranged along the edge of the fixing plate; the clamping mechanism comprises two clamping pieces, the two clamping pieces are pivoted in the fixing plate, a clamping area corresponding to the notch is formed between the two clamping pieces, one end of each clamping piece extends into the notch, and the other end of each clamping piece is elastically connected with the fixing plate; the self-locking mechanism is positioned between the two clamping pieces and comprises a connecting pin, a guide rod and two self-locking rods, one end of the guide rod is pivoted with one end of each of the two self-locking rods through the connecting pin, one end of the guide rod can be arranged on the fixing plate in a sliding mode along the opening direction of the notch, the other end of one self-locking rod is pivoted on one clamping piece, and the other end of the other self-locking rod is pivoted on the other clamping piece. The utility model discloses a push-and-pull self-locking anchor clamps can collect and promote and stimulate in an organic whole to have self-locking function and promote and stimulate large-and-medium-sized work piece under in order to be adapted to dangerous production environment.

Description

Push-pull self-locking fixture

technical field

The utility model relates to a clamp, in particular to a push-pull self-locking clamp.

Background technique

During the production process, it is necessary to move the workpiece to the designated working position. For some small workpieces, it can be done by hand in a safer production environment, but for large and medium-sized workpieces, especially in dangerous production environments (such as radiation, etc.) Under certain conditions, it is extremely difficult and dangerous to realize it manually by hand; some current fixtures can only meet the requirements of pushing or pulling, and have no self-locking function.

Therefore, there is an urgent need for a push-pull self-locking fixture that can integrate push and pull and has a self-locking function to overcome the above-mentioned defects.

Utility model content

The purpose of the utility model is to provide a push-pull self-locking fixture which can integrate push and pull and has a self-locking function.

In order to achieve the above purpose, the utility model provides a push-pull self-locking fixture, which is suitable for pushing and pulling large and medium-sized workpieces in dangerous environments, wherein the push-pull self-locking fixture of the utility model includes a fixing plate, and Internal clamping mechanism and self-locking mechanism. The fixed plate is provided with a gap along the direction from the left end to the right end of the fixed plate; the clamping mechanism includes two clamping parts, and the two clamping parts are pivotally connected in the fixed plate and make the two clamping parts A clamping area corresponding to the notch is formed between them, and one end of each clamping member extends into the notch, and the other end of each clamping member is elastically connected to the fixing plate; The self-locking mechanism is located between the two clamping parts, and the self-locking mechanism includes a connecting pin, a guide rod and two self-locking rods, and one end of the guiding rod passes through the connecting pin and one end of the two self-locking rods are pivotally connected together, one end of the guide rod can be slid on the fixed plate along the opening direction of the notch, and the other end of the self-locking rod is pivotally connected to the clamping member, and the other The other end of the self-locking lever is pivotally connected to the other clamping member.

Preferably, the clamping mechanism further includes two elastic elements, each of the clamping pieces is elastically connected to the fixing plate through one of the elastic elements, so that the clamping pieces can clamp large and medium-sized workpieces more reliably, And can reset more reliably.

Preferably, the clamping mechanism further includes two limit pins, the two limit pins are located in the clamping area, and each of the limit pins corresponds to one of the clamping parts, so as to limit the The rotation range of the fastener.

Preferably, the fixed plate includes an upper fixed plate, a lower fixed plate and a guide plate, the upper fixed plate and the lower fixed plate are arranged in parallel to form a storage cavity, and the guide plate is fixedly accommodated in the storage cavity. In the cavity, and the guide plate is provided with a guide groove for the guide rod to slide, so that the guide rod can slide reliably on the guide plate, so that the self-locking rod and the guide rod together form a self-locking structure. The self-locking rod and the guide rod when in self-locking are unlocked.

Preferably, each clamping member includes a clamping head and a clamping handle, the clamping head is pivotally connected to the fixing plate and protrudes into the notch, and the clamping head also faces toward the guide rod tilted, the end of the clamping handle is elastically connected to the fixing plate, the self-locking lever is pivotally connected to the clamping handle, and the pivot joint between the self-locking lever and the clamping handle is located between the fixing plate and the fixing plate. The front of the elastic connection of the clamping handle makes the structure of the clamping part compact.

Compared with the prior art, since the two clamping parts of the utility model are pivotally connected in the fixed plate, a clamping area corresponding to the notch is formed between the two clamping parts, and one end of each clamping part extends into In the gap, the other end of each clamping part is elastically connected to the fixed plate, so when the push-pull self-locking fixture of the utility model pulls the large and medium-sized workpiece, the workpiece is first pushed to rotate the clamping part along the direction of expanding the clamping area. The workpiece slides into the clamping area, and at this time the clamping part automatically resets under the action of elasticity, so that the workpiece is clamped in the clamping area, so that the large and medium-sized workpiece can be pulled; and Because one end of the guide rod is pivotally connected with one end of the two self-locking rods through the connecting pin, one end of the guide rod can be slidably arranged on the fixing plate along the opening direction of the notch, and the other end of a self-locking rod is pivotally connected with a clip On the clamping part, the other end of the other self-locking rod is pivotally connected to the other clamping part, so that the guide rod and the self-locking rod form a self-locking structure when pushing the workpiece in the clamping area, so that the The workpiece in the clamping area pushes and facilitates the workpiece in the clamping area to slide out of the clamping area. Therefore, the push-pull self-locking fixture of the utility model can integrate pushing and pulling, and has a self-locking function, so as to be suitable for dangerous situations. Pulling and pushing of large and medium-sized workpieces in the environment.

Description of drawings

Fig. 1 is a perspective view of a push-pull self-locking fixture of the present invention.

Fig. 2 is a schematic view of the state of the push-pull self-locking fixture shown in Fig. 1 when the upper and lower fixing plates are removed and the large and medium-sized workpieces are clamped.

Fig. 3 is a three-dimensional structure diagram when the clamping mechanism of the push-pull self-locking fixture of the utility model is assembled with the guide plate.

Fig. 4 is a three-dimensional structure diagram when the self-locking mechanism of the push-pull self-locking fixture of the utility model is assembled together with the guide plate.

Detailed ways

In order to describe the technical content and structural features of the present utility model in detail, further description will be made below in conjunction with the embodiments and accompanying drawings.

Please refer to FIG. 1 to FIG. 4 , the push-pull self-locking fixture 100 of the present invention is used for pushing and pulling a large and medium-sized workpiece 200 with a vertical cylindrical convex pin 210 in a dangerous environment. The push-pull self-locking fixture 100 includes a fixing plate 10 , a clamping mechanism 20 and a self-locking mechanism 30 built in the fixing plate 10 . The fixed plate 10 has a gap 11 along the direction from the left end to the right end of the fixed plate 10. Specifically, in this embodiment, the fixed plate 10 includes an upper fixed plate 12, a lower fixed plate 13 and a guide plate 14, The upper fixing plate 12 and the lower fixing plate 13 are arranged in parallel to form a receiving cavity 15, the receiving cavity 15 makes the clamping mechanism 20 and the self-locking mechanism 30 built in the fixing plate 10, and the guide plate 14 is fixed The specific implementation is that the guide plate 14 is provided with a mounting hole 14a, and correspondingly, the upper fixing plate 12 and the lower fixing plate 13 are correspondingly provided with fixing holes (not shown in the figure), The guide plate 14 is fixed between the upper fixing plate 12 and the lower fixing plate 13 by means of external threaded connectors 40 (such as the cooperation of bolts and nuts) passing through the mounting holes and the fixing holes.

At the same time, the clamping mechanism 20 includes two clamping parts 21, and the two clamping parts 21 are pivotally connected to the fixed plate 10 (specifically, the upper fixed plate 12 pivotally connected to the fixed plate 10) through the first pivot shaft 25. and on the lower fixing plate 13) and form a clamping area 22 corresponding to the notch 11 between the two clamping pieces 21, and one end of each clamping piece 21 extends into the notch 11 , the other end of each clamping piece 21 is elastically connected to the fixed plate 10 (specifically, elastically connected to the guide plate 14 of the fixed plate 10), specifically, in this embodiment, the clamping piece 21 and The elastic connection mode of the fixed plate 10 is that the clamping mechanism 20 is also provided with two elastic elements 23, and each clamping member 21 is elastically connected with the guide plate 14 of the fixed plate 10 through one elastic element 23, In order to make the clamping member 21 more reliable for the clamping of the large and medium-sized workpiece 200, and can reset more reliably; and the clamping mechanism 20 is also provided with two limit pins 24, and the two limit pins 24 are located In the tightening area 22 , and each of the limiting pins 24 corresponds to one of the clamping components 21 to limit the rotation range of the clamping components 21 .

Finally, the self-locking mechanism 30 is located between the two clamping parts 21 , and the self-locking mechanism 30 includes a connecting pin 31 , a guide rod 32 and two self-locking rods 33 . One end of the guide rod 32 is pivotally connected with one end of the two self-locking rods 33 through the connecting pin 31 (that is, the rotation support points of the guide rod 32 and the two self-locking rods 33 are the same), and the guide rod 32 One end of the notch 11 can be slidably arranged on the fixed plate 10 along the opening direction of the notch 11. Specifically, the guide plate 14 of the fixed plate 10 is provided with a guide groove 14b for sliding the guide rod 32. The guide groove 14b The guide rod 32 is reliably slid on the guide plate 14; and the other end of the self-locking rod 33 is pivotally connected to the clamping part 21 through the second pivot shaft 34, and the other end of the self-locking rod The other end of 33 is also pivotally connected to the other clamping member 21 through the above-mentioned second pivot shaft 34 . The purpose is to make the guide rod 32 slide on the guide plate 14 to realize the self-locking structure formed by the self-locking rod 33 and the guide rod 32 together, and at the same time, unlock the self-locking rod 33 and the guide rod 32 when they are in self-locking. More specifically, as follows:

Preferably, each clamping member 21 includes a clamp head 21a and a clamp handle 21b, and the above-mentioned first pivot shaft 25 is fixed on the clamp head 21a, so that the clamp head 21a can be pivotally connected to the fixed plate 10; at the same time, the chuck 21a also extends into the notch 11, and makes the chuck 21a tilt toward the guide rod 32; The guide plate 14 of the fixed plate 10 is elastically connected, the self-locking lever 33 is pivotally connected to the clamp handle 21b through the above-mentioned second pivot shaft 34, and the pivot joint between the self-lock lever 33 and the clamp handle 21b It is located in front of the elastic connection between the guide plate 14 of the fixing plate 10 and the clamping handle 21b, so that the structure of the clamping member 21 is compact.

In conjunction with the accompanying drawings, the working principle of the push-pull self-locking fixture 100 of the present utility model is described in detail: under the push of an external force, the push-pull self-locking fixture 100 of the present utility model contacts the vertical cylindrical convex pin 210 of the workpiece 200, and at this time clamps The collet 21a of the mechanism 20 is squeezed by the vertical cylindrical convex pin 210 of the workpiece 200, and the collet 21a rotates along the direction in which the workpiece 200 enters the clamping area 22, so that the vertical cylindrical convex pin 210 of the workpiece 200 enters the clamping area 210 of the utility model. In the clamping area 22 of the push-pull self-locking fixture 100; through the promotion of external force, the vertical cylindrical convex pin 210 of the workpiece 200 starts to squeeze the guide rod 32 until the two self-locking rods 33 are in a straight line, and the self-locking rod 33 completes the self-locking Stop motion, now push-pull self-locking fixture 100 of the present utility model begins to push workpiece 200 to move forward under the action of external force, has realized the pushing requirement of workpiece 200; Move out and release the self-locking state; when the workpiece 200 needs to be pulled out, place the vertical cylindrical convex pin 210 of the workpiece 200 in the clamping area of the push-pull self-locking fixture 100 of the present utility model according to the same steps as pushing the workpiece 200 22, now start to reversely pull the push-pull self-locking fixture 100 of the present utility model, under the pulling force of the elastic element 23, the distance between the two chucks 21a is restored to the original distance, so that the vertical cylindrical convex pin of the workpiece 200 210 will not move out of the clamping area 22 of the push-pull self-locking fixture 100 of the present utility model. After the pulling purpose is completed, push the push-pull self-locking fixture 100 of the present utility model to move forward until the self-locking rod 33 completes the self-locking. Withdraw the push-pull self-locking fixture 100 of the present utility model, so just can realize push-pull integrated operation to large and medium-sized workpiece 200.

Compared with the prior art, since the two clamping parts 21 of the present invention are pivotally connected in the fixed plate 10 and a clamping area 22 corresponding to the notch 11 is formed between the two clamping parts 21, and each clamping One end of part 21 stretches in the gap 11, and the other end of each clamping part 21 is elastically connected with fixed plate 10, so when push-pull self-locking fixture 100 of the present utility model pulls large and medium-sized workpiece 200, first make workpiece 200 Push the clamping part 21 to rotate along the direction of expanding the clamping area 22, so that the workpiece 200 slides into the clamping area 22, and at this time, the clamping part 21 automatically resets under the action of elasticity, so that the workpiece 200 is clamped in the In the clamping area 22, thus the large and medium-sized workpiece 200 can be pulled; 11 is slidably arranged on the fixed plate 10, and the other end of a self-locking rod 33 is pivotally connected to a clamping member 21, and the other end of another self-locking rod 33 is pivotally connected to another clamping member 21 Therefore, the guide rod 32 and the self-locking rod 33 form a self-locking structure when pushing the workpiece 200 in the clamping area 22, so that the workpiece 200 in the clamping area 22 can be reliably pushed and facilitated in the clamping area 22. The workpiece 200 slides out of the clamping area 22. Therefore, the push-pull self-locking fixture 100 of the utility model can integrate pushing and pulling, and has a self-locking function, so as to be suitable for pulling and pulling large and medium-sized workpieces 200 in dangerous environments. promote.

What is disclosed above is only a preferred example of the utility model, which certainly cannot limit the scope of rights of the utility model. Therefore, the equivalent changes made according to the claims of the utility model still belong to the scope covered by the utility model.

Claims (5)

1. A push-pull self-locking fixture, suitable for pushing and pulling large and medium-sized workpieces in dangerous environments, characterized in that the push-pull self-locking fixture includes: A fixed plate, the fixed plate is provided with a gap along the direction from the left end to the right end of the fixed plate; A clamping mechanism built in the fixed plate, the clamping mechanism includes two clamping parts, and the two clamping parts are pivotally connected in the fixed plate and form a connection between the two clamping parts and the a clamping area corresponding to the notch, and one end of each clamping member extends into the notch, and the other end of each clamping member is elastically connected to the fixing plate; and A self-locking mechanism built in the fixing plate and located between the two clamping parts, the self-locking mechanism includes a connecting pin, a guide rod and two self-locking rods, one end of the guide rod passes through the connecting pin Jointly pivoted with one end of the two self-locking rods, one end of the guide rod can be slid on the fixing plate along the opening direction of the notch, and the other end of the self-locking rod is pivotally connected to a On the clamping part, the other end of the other self-locking lever is pivotally connected to the other clamping part. 2. The push-pull self-locking clamp according to claim 1, wherein the clamping mechanism further comprises two elastic elements, each of the clamping pieces is elastically connected to the fixing plate through one of the elastic elements. 3. The push-pull self-locking clamp according to claim 1, wherein the clamping mechanism further comprises two limit pins, the two limit pins are located in the clamping area, and each of the limit pins A position pin corresponds to one of the clamping pieces. 4. The push-pull self-locking fixture according to claim 1, wherein the fixed plate includes an upper fixed plate, a lower fixed plate and a guide plate, and the upper fixed plate and the lower fixed plate are arranged in parallel to form a storage space. cavity, the guide plate is fixedly accommodated in the accommodation cavity, and the guide plate is provided with a guide groove for the guide rod to slide. 5. The push-pull self-locking clamp according to claim 1, wherein each of the clamping parts includes a clamping head and a clamping handle, and the clamping head is pivotally connected to the fixing plate and extends into the notch and the chuck is also inclined towards the guide rod, the end of the clamp handle is elastically connected to the fixed plate, the self-locking rod is pivotally connected to the clamp handle, and the self-locking rod is connected to the The pivot joint of the clip handle is located in front of the elastic connection between the fixing plate and the clip handle.

Images