Clamp

Abstract

The utility model discloses a clamp which comprises a machine frame and a push rod. A pushing piece is further arranged on one side of the rack; the push rod slides in the rack to drive the chuck installed at the end of the push rod to complete the folding action or the unfolding action on the other side of the rack, so that the bolt is clamped or released. The interior of the pushing rod is connected with an ejector rod in a sliding mode, and when one end of the ejector rod stretches into the chuck, the bolt head entering the chuck abuts against the inner wall face of the chuck. One end of the pushing rod slides towards the outside of the machine frame, the opening action of the chuck can be completed, the unfolding size of the chuck can be gradually enlarged along with continuous movement of the pushing rod, then the equipment can clamp bolts of various sizes, the stability of the bolts in the chuck can be further improved through cooperation of the ejector rod and the chuck, and the clamping efficiency is improved. Therefore, the position of the bolt is stable and reliable when the bolt is machined, and the machining precision and the machining quality of the bolt are improved.

Description

Technical Field

[0001] This utility model relates to the field of fastener processing equipment technology, specifically a clamp. Background Technology

[0002] Bolts are indispensable fasteners in production and daily life, and are very common in the machinery manufacturing industry. They are also essential standard parts in the fields of aviation, aerospace, automobiles, and shipbuilding, with a wide range of applications and a large market demand. In the current technology, the machining and clamping of bolts is generally limited to producing bolts of the same type and specification. This is not practical for clamping bolts of different sizes, has poor versatility, and results in poor stability after clamping. Utility Model Content

[0003] The purpose of this invention is to provide a clamp to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a clamp, including a frame and a push rod installed in the frame, wherein a pusher is provided on one side of the frame and the pusher causes the push rod to slide within the frame; the sliding of the push rod within the frame drives a chuck installed at the end of the push rod to perform a closing or opening action on the other side of the frame, so as to clamp or release a bolt; the push rod is slidably connected to a top rod, and when one end of the top rod extends into the chuck, the bolt head entering the chuck is pressed against the inner wall surface of the chuck.

[0005] As a preferred technical solution of this utility model, it further includes an adjusting rod, which is connected to the pushing rod through a first connecting member. The first connecting member causes the adjusting rod to push the other side of the top rod to move into the clamp.

[0006] As a preferred embodiment of this utility model, a first spring is further provided between the opposing surfaces of the top rod and the adjusting rod.

[0007] As a preferred technical solution of this utility model: the first connecting member includes a first nut, the first nut is connected to a first external threaded post on the push rod, and the end of the adjusting rod away from the top rod is provided with a second external threaded post. The second external threaded post passes through the first nut and is connected to the second nut. The second nut rotates outside the first nut to cause the adjusting rod to move.

[0008] As a preferred technical solution of this utility model: the first connector further includes a first locking ring, and is connected to the first external threaded post through the first locking ring to prevent the first nut from moving toward the chuck.

[0009] As a preferred technical solution of this utility model: the first external threaded column is further provided with a second connecting member, and the linkage between the push rod and the push member is realized through the second connecting member; the second connecting member includes a support ring and a rotating ring that is threadedly engaged with the support ring, and is threadedly engaged with the first external threaded column through a second locking ring, so as to fix the support ring and the rotating ring on the push rod.

[0010] As a preferred technical solution of this utility model: a second spring is also installed on the outside of the push rod, and the second spring assists the pusher in pushing the push rod to move the chuck to the outside of the frame.

[0011] As a preferred technical solution of this utility model: the number of clamps is multiple, and the ends of the multiple clamps facing the push rod are held on the push rod by a ring spring.

[0012] As a preferred technical solution of this utility model: the chuck includes a support part, the support part is provided with a clamping part for clamping bolts, and the other end of the support part is fastened to the outside of the shaft pin part provided on the push rod through a ring groove, and the ring spring is tightened to cause the ring groove to rotate along the outer wall surface of the shaft pin part so that the chuck completes the open state.

[0013] As a preferred technical solution of this utility model: the outer wall surface of the support part is further provided with a mounting groove, and the annular spring is fixed to the clamp through the mounting groove.

[0014] The beneficial effects of this utility model using the above technical solution are as follows: Sliding one end of the push rod outwards from the frame facilitates the opening of the chuck. Since the chuck can unfold, it allows the bolt head to easily enter the chuck. Simultaneously, as the push rod continues to move, the unfolding size of the chuck gradually increases, enabling the device to clamp bolts of various sizes. When one end of the push rod moves inwards from the frame, it causes the chuck to tighten, thus clamping the bolt head. Simultaneously, a push rod can be used to press against the bolt head. The cooperation between the push rod and the chuck further enhances the stability of the bolt within the chuck, ensuring a stable and reliable bolt position during processing, thereby improving the bolt's processing accuracy and quality. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the main structure of this utility model;

[0017] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle;

[0018] Figure 4 This is a schematic diagram of one side of the disassembled components such as the push rod, push rod, and adjusting rod.

[0019] Figure 5 A schematic diagram of the other side of the disassembled components such as the push rod, push rod, and adjusting rod;

[0020] Figure 6 for Figure 5 A magnified view of a portion of point B in the middle;

[0021] Figure 7 for Figure 5 A magnified view of a portion of point C in the middle;

[0022] Figure 8 This is an exploded structural diagram of the push rod, ring spring, and clamp.

[0023] Figure 9 This is a schematic diagram of the main structure of the clamp of this utility model.

[0024] In the diagram: 1. Frame; 2. Pushing component; 3. Chuck; 30. Support part; 31. Ring groove; 32. Mounting groove; 33. Inclined surface; 34. Clamping part; 4. First connecting part; 5. Second connecting part; 6. Push rod; 7. Top rod; 8. Adjusting rod; 9. Ring spring; 10. First spring; 11. Second spring; 12. Second external threaded post; 13. First locking ring; 14. First nut; 15. Second nut; 16. Support ring; 17. Rotating ring; 18. Second locking ring; 19. First external threaded post; 20. Shaft pin part. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "upper surface," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as limiting this utility model.

[0026] Please see Figure 1-9This utility model provides an embodiment of a clamp, including a frame 1 and a push rod 6 installed in the frame 1. A pusher 2 is also provided on one side of the frame 1, and the pusher 2 causes the push rod 6 to slide within the frame 1. By sliding the push rod 6 within the frame 1, the chuck 3 installed at the end of the push rod 6 is driven to complete a closing or opening action on the other side of the frame 1, so as to clamp or release the bolt. The push rod 6 is slidably connected to a top rod 7. When one end of the top rod 7 extends into the chuck 3, the bolt head entering the chuck 3 is pressed against the inner wall surface of the chuck 3.

[0027] Specifically, such as Figure 1 , Figure 2 and Figure 3 As shown, because the chuck 3 can be unfolded, it facilitates the entry of the bolt head into the interior of the chuck 3. Simultaneously, as the push rod 6 continues to move, the unfolded size of the chuck 3 can gradually increase, allowing the device to clamp bolts of various sizes. When one end of the push rod 6 moves within the frame 1, it causes the chuck 3 to tighten, thus clamping the bolt head. Simultaneously, the push rod 7 can be used to press against the bolt head. The cooperation between the push rod 7 and the chuck 3 further enhances the stability of the bolt within the chuck 3, ensuring a stable and reliable bolt position during processing, thereby improving the bolt's processing accuracy and quality. The bolt head is a crucial component of the bolt, typically referring to the structural part at the top of the bolt used to apply torque to tighten or loosen it.

[0028] like Figure 2 , Figure 6 As shown, it also includes an adjusting rod 8, which is connected to the pushing rod 6 via a first connecting member 4. The first connecting member 4 causes the adjusting rod 8 to push the other side of the top rod 7 into the clamp 3. Based on this, the first connecting member 4 can be used to move the adjusting rod 8 from outside the pushing rod 6, which makes it easier to adjust the position of the top rod 7 in the clamp 3 via the adjusting rod 8.

[0029] Furthermore, a first spring 10 is provided between the opposing surfaces of the top rod 7 and the adjusting rod 8. Therefore, the setting of the first spring 10 can realize the flexible connection between the adjusting rod 8 and the top rod 7. The compression of the first spring 10 facilitates the smooth insertion of the bolt, and the first spring 10 provides a sustained pre-tightening of the bolt during the reset process.

[0030] Specifically, the first connector 4 includes a first nut 14, which is connected to a first external threaded post 19 on the push rod 6. The end of the adjusting rod 8 away from the top rod 7 is provided with a second external threaded post 12, and the second external threaded post 12 passes through the first nut 14 and is connected to a second nut 15. The second nut 15 rotates outside the first nut 14 to cause the adjusting rod 8 to move.

[0031] When the first nut 14 is tightened onto the first external thread post 19, it provides a stable support position for the second nut 15, so that the second nut 15 can rotate on the second external thread post 12. For example, rotating the second nut 15 clockwise causes the adjusting rod 8 to move towards the chuck, compressing the first spring 10 to increase the tightening force of the push rod 7 on the bolt inside the chuck 3. Rotating the second nut 15 counterclockwise causes the first spring 10 to gradually relax, thereby reducing the tightening force of the push rod 7 on the bolt inside the chuck 3.

[0032] To further improve the stability of the first nut 14 on the push rod 6, the first connecting member 4 also includes a first locking ring 13, which is connected to the first external threaded post 19 to prevent the first nut 14 from moving towards the chuck 3. Therefore, the first locking ring 13 and the first nut 14 can be tightened together to ensure that the first nut 14 is stably positioned on the push rod 6. Specifically, the first nut 14 rotates clockwise and the first locking ring 13 rotates counterclockwise until the two parts are tightly pressed together and neither of them continues to rotate, thus achieving the tightness of the first nut 14 and the first locking ring 13.

[0033] like Figure 2 and Figure 7 As shown, the first external threaded post 19 is also provided with a second connecting member 5, and the linkage between the push rod 6 and the push member 2 is realized through the second connecting member 5; the second connecting member 5 includes a support ring 16 and a rotating ring 17 that is threadedly engaged with the support ring 16, and is threadedly engaged with the first external threaded post 19 through a second locking ring 18, so as to fix the support ring 16 and the rotating ring 17 on the push rod 6.

[0034] In summary, the second connecting piece 5 allows the push rod 6 to drive the chuck 3 to slide outward. Specifically, rotating the ring 17 counterclockwise increases the distance between the rotating ring 17 and the supporting ring 16, shortening the distance the chuck 3 moves outward and reducing the opening distance, thus allowing the device to accommodate bolts with smaller diameters. Rotating the rotating ring 17 clockwise decreases the distance between the rotating ring 17 and the supporting ring 16, increasing the distance the push rod 6 pushes the chuck 3 outward, allowing the chuck 3 to open at a larger angle, enabling the device to clamp bolts with larger diameters. Furthermore, regardless of whether the distance between the supporting ring 16 and the rotating ring 17 increases or decreases, after the increase or decrease, the second locking ring 18 connects to the first external threaded post 19, ensuring that the supporting ring 16 is tightly attached to the working end of the pusher 2, guaranteeing that the push rod 6 can reliably follow the pusher 2 in linkage. The pusher 2 is preferably a hydraulic cylinder.

[0035] like Figure 2 , Figure 4 , Figure 5 , Figure 8 As shown, a second spring 11 is also installed on the outside of the push rod 6. The second spring 11 assists the pusher 2 in pushing the push rod 6 to move the chuck 3 to the outside of the frame 1. Therefore, when the pusher 2 moves the chuck 3 into the frame 1, the second spring 11 is compressed. When the pusher 2 moves the chuck 3 outward, or when the pushing force of the pusher 2 disappears, the second spring 11 can cause the push rod 6 to move the chuck 3 outward. Based on this, the pusher 2 can be assisted in opening the chuck 3, or the chuck 3 can be directly opened automatically, reducing the power consumption of the pusher 2.

[0036] Combination Figure 8 and Figure 9 The number of clamps 3 is multiple, and the ends of the multiple clamps 3 facing the push rod 6 are held tightly to the push rod 6 by a ring spring 9.

[0037] Specifically, the chuck 3 includes a support portion 30, which has a clamping portion 34 for clamping bolts. The other end of the support portion 30 is fastened to the outside of the shaft pin portion 20 on the push rod 6 through an annular groove 31. The annular spring 9 tightens the annular groove 31 to rotate along the outer wall of the shaft pin portion 20, thereby causing the chuck 3 to open.

[0038] In addition, the outer wall surface of the support part 30 is provided with a mounting groove 32, and the annular spring 9 is fixed on the clamp 3 through the mounting groove 32.

[0039] Based on this, when the chuck 3 moves outward, it loses the restraint of the frame 1, and the annular spring 9 contracts towards its center, causing the chuck 3 to rotate counterclockwise along the shaft pin 20, thus enabling each chuck 3 to open. Conversely, when the chuck 3 moves inward into the frame 1, it is restrained by the frame 1, and the chuck 3 rotates clockwise along the shaft pin 20, achieving the closure of the outer end faces of each chuck 3. In addition, the inner wall surface at the lower end of the support 30 is provided with an inclined surface 33, and the part of the push rod 6 corresponding to the inclined surface 33 is also provided with an inclined surface 33, thus providing sufficient space for movement between the push rod 6 and the facing surfaces of the chuck 3, so that the chuck 3 can open smoothly.

[0040] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A clamp, characterized in that: It includes a frame (1) and a push rod (6) installed in the frame (1), and a pusher (2) is provided on one side of the frame (1) and the pusher (2) causes the push rod (6) to slide in the frame (1); The push rod (6) slides within the frame (1), causing the clamp (3) installed at the end of the push rod (6) to retract or open on the other side of the frame (1) to clamp or release the bolt. The push rod (6) is slidably connected to the provided top rod (7). When one end of the top rod (7) extends into the chuck (3), the bolt head that has entered the chuck (3) is pressed against the inner wall surface of the chuck (3).

2. The clamp according to claim 1, characterized in that: It also includes an adjusting rod (8), which is connected to the push rod (6) via a first connector (4). The first connector (4) causes the adjusting rod (8) to push the other side of the top rod (7) into the clamp (3).

3. A clamp according to claim 2, characterized in that: A first spring (10) is also provided between the opposing surfaces of the top rod (7) and the adjusting rod (8).

4. A clamp according to claim 3, characterized in that: The first connector (4) includes a first nut (14), which is connected to a first external threaded post (19) on the push rod (6). The adjusting rod (8) has a second external threaded post (12) at one end away from the top rod (7). The second external threaded post (12) passes through the first nut (14) and is connected to a second nut (15). The second nut (15) rotates outside the first nut (14) to cause the adjusting rod (8) to move.

5. A clamp according to claim 4, characterized in that: The first connector (4) also includes a first locking ring (13) and is connected to the first external threaded post (19) through the first locking ring (13) to prevent the first nut (14) from moving toward the chuck (3).

6. A clamp according to claim 4, characterized in that: The first external threaded post (19) is also provided with a second connector (5), and the push rod (6) and the push member (2) are linked through the second connector (5); the second connector (5) includes a support ring (16) and a rotating ring (17) that is threadedly engaged with the support ring (16), and the support ring (16) and the rotating ring (17) are fixed on the push rod (6) by a second locking ring (18) that is threadedly engaged with the first external threaded post (19).

7. A clamp according to claim 1, characterized in that: The push rod (6) is also equipped with a second spring (11), and the second spring (11) assists the pusher (2) in pushing the push rod (6) to drive the chuck (3) to move to the outside of the frame (1).

8. A clamp according to claim 1, characterized in that: The number of the clamps (3) is multiple, and the ends of the multiple clamps (3) facing the push rod (6) are held tightly on the push rod (6) by a ring spring (9).

9. A clamp according to claim 8, characterized in that: The chuck (3) includes a support part (30), which is provided with a clamping part (34) for clamping bolts. The other end of the support part (30) is fastened to the outside of the shaft pin part (20) provided on the push rod (6) through a ring groove (31). The ring spring (9) tightens the ring groove (31) to rotate along the outer wall surface of the shaft pin part (20) so that the chuck (3) is in the open state.

10. A clamp according to claim 9, characterized in that: The outer wall of the support (30) is also provided with a mounting groove (32), and the annular spring (9) is fixed on the clamp (3) through the mounting groove (32).

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