Quenching workpiece clamping tool

Abstract

The utility model discloses a quenching workpiece clamping tool. The quenching workpiece clamping tool comprises a connecting seat and a locking unit, the left sides of the front end and the rear end of the connecting base are rotationally connected with first connecting rods, the left ends of the first connecting rods are rotationally connected with clamping jaws, the right sides of the front end and the rear end of the connecting base are rotationally connected with second connecting rods, the second connecting rods are rotationally connected with the transversely-corresponding clamping jaws, a handle is arranged at the right end of the connecting base, and clamping grooves which are evenly distributed are formed in the right end of the outer arc face of the handle. The locking unit is movably connected to the outer portion of the handle in a sleeving mode, the right ends of the second connecting rods are slidably connected with the locking unit, the right end of the locking unit is movably connected with the longitudinal corresponding clamping groove in a clamped mode, the locking unit comprises a movable sleeve, a movable frame and a locking assembly, and the movable sleeve is movably connected to the middle of the outer arc face of the handle in a sleeving mode. The two clamping jaws are used for clamping in parallel, the clamping stability is good, rapid opening and closing can be conducted, locking is convenient, and firmness is good.

Description

Technical Field

[0001] The utility model relates to the technical field of alloy forging and processing, and specifically relates to a clamping tool for quenched workpieces. Background Art

[0002] As is well known, forging is a metal processing method. In order to improve the mechanical properties of metals, quenching is usually required. Quenching can eliminate defects in metal grains, improve hardness and wear resistance, and also improve its toughness. During the forging and processing of magnesium alloys or titanium alloys, clamping tools are used to clamp quenched workpieces. Existing clamping tools generally use two intersecting jaws for clamping. The jaws rotate to open and close. During the clamping process, the contact surface of the jaws is generally not parallel to the surface of the quenched workpiece, and the contact area is small. At the same time, the clamping process generally lacks a locking component and requires both hands to keep the clamping state, so the clamping stability is general. There are also those that use screws for locking and clamping, but during the opening and closing process of the screws, the purpose of rapid opening and closing generally cannot be achieved, and multiple rotations are often required, resulting in poor opening and closing convenience. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a clamping tool for quenched workpieces. The two jaws clamp in parallel, with good clamping stability, and can be opened and closed quickly. At the same time, the locking is convenient and has good firmness, which can effectively solve the problems in the background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A clamping tool for quenched workpieces, including a connecting seat and a locking unit;

[0005] Connecting seat: The left sides of the front and rear ends of it are both rotatably connected with a first connecting rod. The left ends of the first connecting rods are both rotatably connected with jaws. The right sides of the front and rear ends of the connecting seat are both rotatably connected with a second connecting rod. The second connecting rods are both rotatably connected with the laterally corresponding jaws. The right end of the connecting seat is provided with a handle, and evenly distributed card slots are opened on the outer arc surface of the right end of the handle;

[0006] Locking unit: It is movably sleeved outside the handle. The right ends of the second connecting rods are both slidably connected with the locking unit. The right end of the locking unit is movably clamped with the longitudinally corresponding card slot. The two jaws clamp in parallel, with good clamping stability, and can be opened and closed quickly. At the same time, the locking is convenient and has good firmness.

[0007] Furthermore, the locking unit includes a moving sleeve, a moving frame and a locking component. The moving sleeve is movably sleeved in the middle of the outer arc surface of the handle. A moving frame is provided at the left end of the moving sleeve. The long sliding holes at the right ends of the second connecting rods are both slidably connected with the moving frame. A locking component is threadedly connected to the right end of the moving sleeve. The locking component is movably clamped with the longitudinally corresponding card slot, which is convenient for controlling the second connecting rod.

[0008] Further, the locking assembly includes an internally threaded tube, a moving seat, and a clamping plate. The moving seat is slidably connected to the right end of the outer arc surface of the handle. The left end of the moving seat is rotatably connected to the internally threaded tube. The internally threaded tube is threadedly connected to the right end of the moving sleeve. The middle of the moving seat is slidably connected to the clamping plate. The front end of the clamping plate is movably clamped with the longitudinally corresponding card slot, which facilitates the positioning of the moving sleeve.

[0009] Further, the locking assembly further includes a positioning shaft. The positioning shafts are uniformly arranged at the left end of the moving seat. The positioning shafts are all slidably connected to the annular grooves on the right side of the outer arc surface of the internally threaded tube, which facilitates the connection and positioning of the moving seat and the internally threaded tube.

[0010] Further, the locking assembly further includes a spring piece. The spring piece is arranged inside the groove on the outer arc surface of the moving seat. The rear end of the spring piece is cooperatively arranged with the clamping plate, which facilitates the positioning of the clamping plate.

[0011] Further, a first handle sleeve is fixedly sleeved outside the internally threaded tube, and a second handle sleeve is fixedly sleeved on the right end of the outer arc surface of the handle, which improves the comfort of holding.

[0012] Further, a connecting ring is provided at the right end of the handle, which facilitates the connection of the hook.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows: The present quenching workpiece clamping tooling has the following advantages:

[0014] 1. The left end of the second connecting rod, the first connecting rod, the connecting seat and the clamping jaws form a parallelogram structure, which can control the parallel opening and closing of the two clamping jaws. The clamping jaws are connected through a connecting rod structure. During the opening and closing process of the two clamping jaws, they can always maintain a parallel state, can be in parallel contact with the surface of the workpiece, have a large clamping contact area and good stability, and are convenient for clamping workpieces of different thicknesses.

[0015] 2. During use, the opening and closing of the clamping jaws can be quickly controlled. After moving in place, a preliminary locking is carried out by using a clamping structure, and then a further locking is carried out by using a threaded structure. Therefore, the clamping convenience is good and the clamping firmness is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is a cross-sectional structural diagram of the locking unit of the present utility model;

[0018] Figure 3 is an enlarged structural diagram of part A of the present utility model.

[0019] In the figure: 1 connecting seat, 2 handle, 3 first connecting rod, 4 second connecting rod, 5 clamping jaw, 6 locking unit, 61 moving sleeve, 62 moving frame, 63 locking component, 631 internal threaded pipe, 632 moving seat, 633 clamping plate, 634 positioning shaft, 635 spring piece, 7 clamping groove, 8 first handle sleeve, 9 second handle sleeve, 10 connecting ring. Specific implementation manner

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0021] Please refer to Figures 1-3 , this embodiment provides a technical solution: a clamping tool for quenched workpieces, including a connecting seat 1 and a locking unit 6;

[0022] Connecting seat 1: The left sides of the front and rear ends thereof are both rotatably connected with a first connecting rod 3. The left ends of the first connecting rods 3 are both rotatably connected with clamping jaws 5. The right sides of the front and rear ends of the connecting seat 1 are both rotatably connected with second connecting rods 4. The second connecting rods 4 are both rotatably connected with the laterally corresponding clamping jaws 5. The left ends of the second connecting rods 4 form a parallelogram structure with the first connecting rods 3, the connecting seat 1 and the clamping jaws 5. Therefore, during the rotation of the second connecting rods 4, the first connecting rods 3 rotate synchronously and remain parallel to the left ends of the second connecting rods 4. Thus, the parallel opening and closing of the two clamping jaws 5 can be controlled. The right end of the connecting seat 1 is provided with a handle 2. The right end of the outer arc surface of the handle 2 is provided with uniformly distributed clamping grooves 7. The right end of the handle 2 is provided with a connecting ring 10, which is convenient for connecting with an external lifting hook;

[0023] Locking unit 6: It is movably sleeved outside the handle 2. The right ends of the second connecting rods 4 are all slidably connected to the locking unit 6. The right end of the locking unit 6 is movably clamped with the longitudinally corresponding card slot 7. The locking unit 6 includes a moving sleeve 61, a moving frame 62 and a locking component 63. The moving sleeve 61 is movably sleeved in the middle of the outer arc surface of the handle 2. A moving frame 62 is provided at the left end of the moving sleeve 61. The long sliding holes at the right ends of the second connecting rods 4 are all slidably connected to the moving frame 62. The shafts at the front and rear ends of the moving frame 62 slide relative to the long sliding holes at the right ends of the second connecting rods 4. The long sliding holes are inclined from left to right in a direction away from the axis of the handle 2. Therefore, during the movement of the moving frame 62, the second connecting rod 4 will be driven to rotate. A locking component 63 is threadedly connected to the right end of the moving sleeve 61. The locking component 63 is movably clamped with the longitudinally corresponding card slot 7. The locking component 63 includes an internally threaded tube 631, a moving seat 632 and a clamping plate 633. The moving seat 632 is slidably connected to the right end of the outer arc surface of the handle 2. An internally threaded tube 631 is rotatably connected to the left end of the moving seat 632. The internally threaded tube 631 is threadedly connected to the right end of the moving sleeve 61. The internally threaded tube 631 drives the moving sleeve 61 and the moving frame 62 to move horizontally. The shafts at the front and rear ends of the moving frame 62 slide relative to the long sliding holes at the right ends of the second connecting rods 4. A clamping plate 633 is slidably connected to the middle of the moving seat 632. The front end of the clamping plate 633 is movably clamped with the longitudinally corresponding card slot 7. Rotate the internally threaded tube 631. The internally threaded tube 631 is threadedly connected to the moving sleeve 61. Therefore, during the rotation process, the moving sleeve 61 will be pushed to move leftward, which can further drive the two jaws 5 to clamp. The locking component 63 further includes a positioning shaft 634. The positioning shafts 634 are evenly arranged at the left end of the moving seat 632. The positioning shafts 634 are all slidably connected to the annular groove on the right side of the outer arc surface of the internally threaded tube 631. The positioning shafts 634 facilitate the connection and positioning of the internally threaded tube 631 and the moving seat 632. The locking component 63 further includes a spring piece 635. The spring piece 635 is arranged inside the groove on the outer arc surface of the moving seat 632. The rear end of the spring piece 635 is cooperatively arranged with the clamping plate 633. Press the rear end of the clamping plate 633. The clamping plate 633 moves forward to compress the spring piece 635 and separates from the card slot 7. The moving seat 632 can move freely along the handle 2. Release the clamping plate 633. The spring piece 635 pushes the clamping plate 633 to move backward and is movably clamped with the longitudinally corresponding card slot 7 to lock the moving sleeve 61. An outer handle sleeve 8 is fixedly sleeved outside the internally threaded tube 631. An inner handle sleeve 9 is fixedly sleeved at the right end of the outer arc surface of the handle 2. The outer handle sleeve 8 and the inner handle sleeve 9 improve the comfort when holding by hand.

[0024] The working principle of a quenching workpiece clamping tooling provided by the utility model is as follows: During use, press the rear end of the clamping plate 633. The clamping plate 633 moves forward to compress the spring piece 635 and separates from the clamping groove 7. The moving seat 632 can move freely along the handle 2. Hold the handle sleeve 8, and drive the moving sleeve 61 and the moving frame 62 to move horizontally through the internal thread tube 631. The shaft bodies at the front and rear ends of the moving frame 62 slide relative to the long sliding holes at the right end of the second connecting rod 4. The long sliding holes are inclined from left to right in a direction away from the axis of the handle 2. Therefore, during the movement of the moving frame 62, it will drive the second connecting rod 4 to rotate. The left end of the second connecting rod 4 forms a parallelogram structure with the first connecting rod 3, the connecting seat 1, and the clamping jaws 5. Therefore, during the rotation of the second connecting rod 4, the first connecting rod 3 rotates synchronously and remains parallel to the left end of the second connecting rod 4. Thus, the parallel opening and closing of the two clamping jaws 5 can be controlled. Then, the two clamping jaws 5 can be used to clamp the quenching workpiece. When the handle sleeve 8 drives the moving frame 62 to move leftward, the closing of the clamping jaws 5 can be controlled. After clamping, then release the clamping plate 633. The spring piece 635 pushes the clamping plate 633 to move backward and is movably clamped with the longitudinally corresponding clamping groove 7 to lock the moving sleeve 61. Then, rotate the internal thread tube 631 through the handle sleeve 8. The internal thread tube 631 is threadedly connected to the moving sleeve 61. Therefore, during the rotation process, it will push the moving sleeve 61 to move leftward, and can further drive the two clamping jaws 5 to clamp tightly, with a good clamping effect.

[0025] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are similarly included in the patent protection scope of the present utility model.

Claims

1. A clamping tooling for quenched workpieces, characterized in that: It includes a connecting seat (1) and a locking unit (6); Connecting seat (1): At the left sides of the front and rear ends thereof, a first connecting rod (3) is rotatably connected. At the left ends of the first connecting rods (3), a clamping jaw (5) is rotatably connected. At the right sides of the front and rear ends of the connecting seat (1), a second connecting rod (4) is rotatably connected. The second connecting rods (4) are rotatably connected to the laterally corresponding clamping jaws (5). At the right end of the connecting seat (1), a handle (2) is provided. At the right end of the outer arc surface of the handle (2), uniformly distributed clamping grooves (7) are provided; Locking unit (6): It is movably sleeved outside the handle (2). The right ends of the second connecting rods (4) are slidably connected to the locking unit (6). The right end of the locking unit (6) is movably clamped with the longitudinally corresponding clamping groove (7).

2. The clamping tooling for quenching workpieces according to claim 1, characterized in that: The locking unit (6) includes a moving sleeve (61), a moving frame (62) and a locking component (63). The moving sleeve (61) is movably sleeved in the middle of the outer arc surface of the handle (2). At the left end of the moving sleeve (61), a moving frame (62) is provided. The long sliding holes at the right ends of the second connecting rods (4) are slidably connected to the moving frame (62). At the right end of the moving sleeve (61), a locking component (63) is threadedly connected. The locking component (63) is movably clamped with the longitudinally corresponding clamping groove (7).

3. The clamping tooling for quenched workpieces according to claim 2, characterized in that: The locking component (63) includes an internally threaded tube (631), a moving seat (632) and a clamping plate (633). The moving seat (632) is slidably connected to the right end of the outer arc surface of the handle (2). At the left end of the moving seat (632), an internally threaded tube (631) is rotatably connected. The internally threaded tube (631) is threadedly connected to the right end of the moving sleeve (61). In the middle of the moving seat (632), a clamping plate (633) is slidably connected. The front end of the clamping plate (633) is movably clamped with the longitudinally corresponding clamping groove (7).

4. The clamping tooling for quenched workpieces according to claim 3, wherein: The locking component (63) further includes a positioning shaft (634). The positioning shafts (634) are uniformly arranged at the left end of the moving seat (632). The positioning shafts (634) are slidably connected to the annular grooves on the right side of the outer arc surface of the internally threaded tube (631).

5. The clamping tooling for quenched workpieces according to claim 3, wherein: The locking component (63) further includes a spring piece (635). The spring piece (635) is arranged inside the groove of the outer arc surface of the moving seat (632). The rear end of the spring piece (635) is cooperatively arranged with the clamping plate (633).

6. The clamping tooling for quenched workpieces according to claim 3, characterized in that: An outer handle sleeve (8) is fixedly sleeved outside the internally threaded tube (631). An inner handle sleeve (9) is fixedly sleeved on the right end of the outer arc surface of the handle (2).

7. The clamping tooling for quenching workpieces according to claim 1, wherein: A connecting ring (10) is provided at the right end of the handle (2).

Images