Quick-change jaw

Abstract

The utility model relates to the technical field of clamping equipment for machining, in particular to a quick-change jaw for a bench clamp, which comprises a movable jaw plate and a fixed jaw plate which are attached to each other, a blind rivet is arranged on the movable jaw plate, a fastening hole for the blind rivet to penetrate in is arranged on the fixed jaw plate, and the movable jaw plate and the fixed jaw plate are fixed through the fastening hole. A lock cylinder assembly is further arranged in the fixed jaw plate, and the blind rivets can be locked in the fastening holes. When the jaw needs to be replaced, the pop rivet can be released only by rotating the screw to adjust the position of the second core body and resetting the first core body, so that the movable jaw plate can be quickly disassembled; during installation, the blind rivet of the movable jaw plate is inserted into the fastening hole, the screw is rotated to adjust the position of the second core body, and the first core body can lock the blind rivet in the fastening hole. Operation is convenient and efficiency is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to clamping equipment technical field for machining, especially be used for the quick change jaw mouth of bench vice. BACKGROUND

[0002] Bench vice, also known as vice, is a kind of clamp installed on the workbench, is used to firmly clamp workpiece to carry out various manual operations, and is widely used. Bench vice is generally driven by rotating handle to move the movable jaw in the fixed jaw slot, so as to open and close the jaw.

[0003] The jaw of bench vice is connected to the bench vice by bolts. When different material jaws are replaced according to the processing needs, the original jaw is usually disassembled and the required jaw is replaced by using hexagonal wrench and other tools. This process may become complex due to narrow space and oil accumulation, which not only reduces the disassembly efficiency, but also increases the operation difficulty and safety risk, so the jaw in the prior art needs to be improved. UTILITY MODEL CONTENT

[0004] Technical purpose: in order to overcome the deficiencies in the prior art, the utility model provides a quick change jaw, which can realize the convenient and rapid replacement of the jaw.

[0005] Technical scheme: in order to achieve the above purpose, the utility model discloses a quick change jaw, which comprises a movable jaw plate and a fixed jaw plate which are attached to each other, a puller is arranged on the movable jaw plate, a fastening hole is arranged on the fixed jaw plate for the puller to pass through, and a lock cylinder assembly is further arranged in the fixed jaw plate, which can lock the puller in the fastening hole.

[0006] Further, mounting hole one and mounting hole two are arranged in the fixed jaw plate, the mounting hole one, the mounting hole two and the fastening hole are vertically arranged in pairs, and the mounting hole one is arranged along the length direction of the fixed jaw plate.

[0007] Further, the lock cylinder assembly comprises a first cylinder body and a second cylinder body, the first cylinder body is arranged in the mounting hole one, the second cylinder body is arranged in the mounting hole two, and when the second cylinder body moves close to the first cylinder body, the first cylinder body can be pushed to lock the puller in the fastening hole.

[0008] Further, the first cylinder body is provided with a notch at one end, and the second cylinder body is provided with a cutting surface matched with the notch at the end.

[0009] Further, the other end of the first core body is provided with a protrusion, the circumference of the pull pin is concave to form a clamping groove from both ends to the middle part, and the first core body pushes against the clamping groove by the protrusion to lock the pull pin in the fastening hole.

[0010] Further, the lock core assembly further comprises a screw arranged in the mounting hole two, and the second core body is arranged at the end of the screw and moves with the screw in the mounting hole two.

[0011] Further, the first core body is provided with two, which are symmetrically arranged on both sides of the second core body, and the pull pin is provided with two, which are respectively arranged corresponding to the two first core bodies; and a reset tension spring is arranged between the two first core bodies.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1、The quick-change jaw of the utility model is provided with a movable jaw plate and a fixed jaw plate, the movable jaw plate is provided with a pull pin, the fixed jaw plate is provided with a lock core assembly, the lock core assembly can lock the pull pin, and the fixed fitting of the two jaw plates is realized.

[0014] 2、When the jaw needs to be replaced, the position of the second core body is only needed to be adjusted by rotating the screw, the first core body is reset, the pull pin is released, and therefore the movable jaw plate can be quickly disassembled; when the movable jaw plate is installed, the pull pin of the new movable jaw plate is inserted into the fastening hole, the position of the second core body is adjusted by rotating the screw, and the first core body can lock the pull pin in the fastening hole. The operation is convenient and efficient. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the quick-change jaw of the utility model;

[0016] Figure 2 It is a structure schematic view of the movable jaw plate;

[0017] Figure 3 It is a sectional view of the fixed jaw plate;

[0018] Figure 4 It is a structure schematic view of the lock core assembly when locking the pull pin;

[0019] Figure 5 It is a structure schematic view of the pull pin;

[0020] Figure 6 It is a first core body mechanism schematic view.

[0021] In the diagram, 10 is the movable jaw plate; 11 is the pull pin; 12 is the slot; 20 is the fixed jaw plate; 21 is the fastening hole; 22 is the mounting hole one; 23 is the mounting hole two; 30 is the lock cylinder assembly; 31 is the first core; 32 is the second core; 33 is the notch; 34 is the cut surface; 35 is the protrusion; 36 is the screw; and 37 is the reset spring. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1 To be continued Figure 6 The principles and features of this utility model are described, and the examples given are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0023] A quick-change jaw assembly includes a movable jaw plate 10, a fixed jaw plate 20, and a lock cylinder assembly 30 disposed within the fixed jaw plate 20. The fixed jaw plate 20 is fixedly mounted at the jaws of the vise using bolts or other fasteners. The lock cylinder assembly 30 can quickly attach and fix the movable jaw plate 10 to the fixed jaw plate 20 for quick installation; it can also quickly release the movable jaw plate 10 for quick disassembly. The specific implementation method is as follows:

[0024] The movable jaw plate 10 is provided with a pull rivet 11; the fixed jaw plate 20 is provided with two vertical fastening holes 21, mounting hole one 22, and mounting hole two 23, with mounting hole one 22 opening along the length direction of the fixed jaw plate 20; the fastening hole 21 is used for the pull rivet 11 to pass through, and the lock cylinder assembly 30 is disposed in mounting hole one 22 and mounting hole two 23. When the pull rivet 11 passes into the fastening hole 21, the lock cylinder assembly 30 can lock the pull rivet in the fastening hole 21, realizing the quick installation of the movable jaw plate 10.

[0025] Specifically, such as Figure 3 As shown, the lock cylinder assembly 30 includes a first core 31, a second core 32, and a screw 36. The first core 31 is disposed in a mounting hole 22, and the second core 32 and the screw 36 are disposed in a mounting hole 23. The second core 32 is disposed at the end of the screw 36 and moves with the screw 36 within the mounting hole 23. One end of the first core 31 has a notch 33, and the end of the second core 32 has a cut surface 34 that mates with the notch 33. When the second core 32 moves toward the first core 31, the notch 33 and the cut surface 34 move relative to each other, allowing the second core 32 to push against the first core 31 and lock the pull pin 11 in the fastening hole 21.

[0026] like Figure 5 and Figure 6As shown, in order to make the movable jaw plate 10 locked more firmly, in an embodiment, the first core 31 is provided with a protrusion 35 at the end away from the cutout 33, the circumference of the pull pin 11 is recessed to form a clamping groove 12 from both ends to the middle, and the first core 31 pushes against the clamping groove 12 by the protrusion 35 to lock the pull pin 11 in the fastening hole 21.

[0027] In order to further ensure the stable fit of the movable jaw plate 10 and the fixed jaw plate 20, in an embodiment, the first core 31 is provided with two, symmetrically arranged on both sides of the second core 32. The pull pin 11 is also provided with two, respectively corresponding to the two first cores 31, and correspondingly, the fixed jaw plate 20 is provided with two fastening holes 21 for the pull pin 11 to pass through. The two first cores 31 are provided with a reset tension spring 37 therebetween.

[0028] In an embodiment, the working process of the utility model is as follows:

[0029] During installation, the pull pin 11 on the movable jaw plate 10 is inserted into the fastening hole 21, after being in place, the worker rotates the screw 36 by using a hexagonal wrench or the like to move the second core 32 close to the first core 31, push the protrusion 35 of the first core 31 close to the clamping groove 12, and push against the clamping groove 12 to clamp the pull pin 11 in the fastening hole 21, so as to complete the quick installation of the movable jaw; reversely rotating the screw, the quick disassembly of the movable jaw can be completed.

[0030] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A quick-change jaw, characterized in that, It includes a movable jaw plate (10) and a fixed jaw plate (20) that fit together. The movable jaw plate (10) is provided with a pull stud (11). The fixed jaw plate (20) is provided with a fastening hole (21) for the pull stud (11) to pass through. The fixed jaw plate (20) is also provided with a lock cylinder assembly (30) that can lock the pull stud (11) in the fastening hole (21).

2. The quick-change jaws according to claim 1, characterized in that, The fixed jaw plate (20) is provided with mounting hole one (22) and mounting hole two (23). The mounting hole one (22), mounting hole two (23) and the fastening hole (21) are arranged perpendicularly to each other. The mounting hole one (22) is opened along the length direction of the fixed jaw plate (20). The lock cylinder assembly (30) is disposed in the mounting hole one (22) and mounting hole two (23).

3. The quick-change jaws according to claim 2, characterized in that, The lock cylinder assembly (30) includes a first core (31) and a second core (32). The first core (31) is disposed in the first mounting hole (22), and the second core (32) is disposed in the second mounting hole (23). When the second core (32) moves closer to the first core (31), it can push against the first core (31) to lock the pull pin (11) in the fastening hole (21).

4. The quick-change jaws according to claim 3, characterized in that, The first core (31) has a cut (33) at one end, and the second core (32) has a cut surface (34) at one end that cooperates with the cut (33).

5. The quick-change jaws according to claim 4, characterized in that, The other end of the first core (31) is provided with a protrusion (35), and the circumferential surface of the pull stud (11) is recessed from both ends toward the middle to form a groove (12). The first core (31) uses the protrusion (35) to push against the groove (12) to lock the pull stud (11) in the fastening hole (21).

6. The quick-change jaws according to claim 3, characterized in that, The lock cylinder assembly (30) also includes a screw (36) disposed in the second mounting hole (23), and the second core (32) is disposed at the end of the screw (36) and moves with the screw (36) in the second mounting hole (23).

7. The quick-change jaws according to claim 3, characterized in that, Two first cores (31) are provided, symmetrically arranged on both sides of the second core (32); two pull studs (11) are provided, respectively corresponding to the two first cores (31); a reset spring (37) is provided between the two first cores (31).

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