Clamp capable of rapidly moving in place and clamping

Abstract

The utility model discloses a clamp capable of quickly moving in place and clamping. The clamp comprises a bottom plate, a self-locking rod, a sliding shaft, a movable jaw, a fixed jaw and a clamping seat, the fixed jaw and the clamping seat are both fixedly installed on the bottom plate, the sliding shaft penetrates through the clamping seat to be connected with the movable jaw, the movable jaw is arranged on the bottom plate in a sliding mode, a spring pressing plate is arranged in the clamping seat, a rectangular spring is arranged between one side of the spring pressing plate and the clamping seat, and the rectangular spring is connected with the movable jaw. An eccentric clamping shaft is arranged between the other side of the spring pressing plate and the clamping base, the eccentric clamping shaft is connected with a self-locking rod, an eccentric cam is installed on the eccentric clamping shaft, a small hole is formed in the clamping base, an adjusting jackscrew is installed in the small hole, and one end of the adjusting jackscrew abuts against the spring pressing plate. The clamping and self-locking device can be quickly moved in place, the clamping and self-locking requirements can be conveniently met, the labor intensity is reduced, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of self-locking clamps, in particular to a clamp which can be quickly moved into position and clamped. Background Art

[0002] Heat treatment test bars are one of the methods used in the industry to compare and analyze the metallographic structure of heat treatment products after heat treatment. During heat treatment metallographic testing, test bars need to be cut to detect the metallographic structure. During mass production, a large number of cut test bars are required for inspection and analysis. The current cutting method uses an ordinary vise to clamp the test bars and use a grinding wheel cutter to cut. At present, when the cut test bars are clamped with ordinary vise jaws, there is a high labor intensity in the operation. When the screw is tightened and loosened, it needs to be tightened multiple times to clamp and loosen. The clamp operation time for clamping and loosening the test bars is long, which affects the processing efficiency and needs to be improved.

[0003] The utility model patent with announcement number CN202162592U discloses an eccentric clamping fixture, in which an eccentric cam drives the pull rod, thereby driving the pressure plate to move toward the center and downward at the same time, thereby clamping the workpiece. However, a swing angle may occur during the clamping process of the workpiece, and accurate positioning and precise clamping of the workpiece cannot be achieved, thereby affecting work efficiency. Summary of the invention

[0004] The utility model aims to solve the problems in the prior art and provide a clamp which can be quickly moved into position and clamped, so as to solve the problems of inaccurate positioning and low working efficiency of the prior clamp.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A clamp that can be quickly moved into position and clamped, comprising a base plate, a self-locking rod, a sliding shaft, a movable jaw, a fixed jaw and a clamping seat;

[0007] The fixed jaw and the clamping seat are both fixedly mounted on the base plate, the sliding shaft passes through the clamping seat and is connected to the movable jaw, the movable jaw is slidably arranged on the base plate, a spring pressure plate is arranged in the clamping seat, a rectangular spring is arranged between one side of the spring pressure plate and the clamping seat, an eccentric clamping shaft is arranged between the other side of the spring pressure plate and the clamping seat, the eccentric clamping shaft is connected to the self-locking rod, an eccentric cam is installed on the eccentric clamping shaft, a small hole is opened on the clamping seat, an adjusting top screw is installed in the small hole, and one end of the adjusting top screw presses the spring pressure plate.

[0008] Furthermore, the base plate is fixedly mounted on the machine tool workbench through working connecting pins, workbench connecting screws and T-keys.

[0009] Furthermore, the movable jaw is fixedly mounted on one end of the sliding shaft by a movable jaw fixing screw, and a handle is mounted on the other end of the sliding shaft.

[0010] Furthermore, the fixed jaws are fixedly mounted on the base plate by means of hexagon socket bolts.

[0011] Furthermore, the movable jaw and the fixed jaw are both provided with a serrated structure.

[0012] Furthermore, the self-locking rod is connected to the eccentric clamping shaft via screws.

[0013] Furthermore, a dustproof sealing ring is provided between the eccentric clamping shaft and the clamping seat.

[0014] Furthermore, a stop pin is installed on the clamping seat, and the other end of the self-locking rod is limited by the stop pin.

[0015] Furthermore, the clamping seat is fixedly mounted on the base plate via positioning pins.

[0016] Furthermore, a through hole is provided on the clamping seat, the sliding shaft is installed in the through hole, and the sliding shaft is clearance-matched with the through hole.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model provides a clamp that can be quickly moved into position and clamped. A fixed jaw and a clamping seat are fixedly installed on a bottom plate. A sliding shaft passes through the clamping seat and is connected to a movable jaw. The movable jaw is slidably arranged on the bottom plate. The movable jaw can be quickly moved to a clamping position by the push of the sliding shaft. When releasing, the movable jaw can be quickly retracted by pulling the sliding shaft to leave the clamping position. A spring pressure plate is arranged in the clamping seat. A rectangular spring is arranged between one side of the spring pressure plate and the clamping seat. An eccentric clamping shaft is arranged between the other side of the spring pressure plate and the clamping seat. The eccentric clamping shaft is connected to a self-locking rod. An eccentric cam is installed on the eccentric clamping shaft. After the sliding shaft drives the movable jaw to quickly move to the clamping position, the self-locking rod can drive the eccentric clamping shaft to push the spring pressure plate, and at the same time compress the rectangular spring to lock the sliding shaft, so that the test rod remains in a clamped self-locking state, and cutting can be performed. An adjustment screw is installed on the clamping seat to adjust the clamping force of the rectangular spring and the swing angle of the spring pressure plate to ensure reliable self-locking force. The utility model has the advantages of simple structure, accurate positioning and strong practicality, realizes the requirement of fast moving into position and conveniently and accurately realizes the clamping and self-locking, shortens the time of clamping and releasing the test rod operation fixture, reduces labor intensity and improves processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the clamp that quickly moves into position and clamps according to the utility model.

[0021] Figure 2 This is a front view of the fixture of the utility model that is quickly moved into position and clamped.

[0022] Figure 3 This is a cross-sectional view of the fixture of the utility model that is quickly moved into position and clamped.

[0023] Figure 4 It is a top view of the fixture of the utility model that is quickly moved into position and clamped.

[0024] Figure 5 It is a schematic diagram of the self-locking rod structure of the utility model.

[0025] Figure 6 It is a cross-sectional view of the clamp seat of the utility model.

[0026] Figure 7 It is a cross-sectional view of the eccentric clamping shaft of the utility model.

[0027] Figure 8 This is a schematic diagram of the jaw structure of the utility model.

[0028] Among them: 1-base plate, 2-adjusting top screw, 3-handle, 4-screw, 5-self-locking handle, 6-handle rod, 7-stop pin, 8-sliding shaft, 9-movable jaw, 10-fixed jaw, 11-hexagon socket screw, 12-clamping seat, 13-spring pressure plate, 14-rectangular spring, 15-movable jaw fixing screw, 16-workbench connecting pin, 17-workbench connecting screw, 18-T-key, 19-eccentric clamping shaft, 20-locating pin, 21-dustproof sealing ring. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the embodiments of the present utility model, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the embodiments of the present utility model, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] The utility model is further described in detail below with reference to the accompanying drawings:

[0036] See also Figure 1 and Figure 2 The utility model provides a clamp which can be quickly moved into position and clamped, comprising a base plate 1, an adjusting top screw 2, a handle 3, a screw 4, a self-locking handle 5, a handle rod 6, a stop pin 7, a sliding shaft 8, a movable jaw 9, a fixed jaw 10 and a clamping seat 12.

[0037] like Figure 3 As shown, the base plate 1 of the utility model is connected and fixed on the machine tool workbench through the workbench connecting pin 16, the workbench connecting screw 17 and the T-key 18. The movable jaw 9 is slidably set on the base plate 1, and the fixed jaw 10 is fixedly installed on the base plate 1 through the hexagon socket bolt 11. The handle 3 is installed at one end of the sliding shaft 8, and the other end of the sliding shaft 8 is fixedly connected to the movable jaw 9 through the movable jaw fixing screw 15. The handle 3 drives the movable jaw 9 to move quickly to the clamping position through the sliding shaft 8. When leaving the clamping position, the processed test rod is removed.

[0038] like Figure 4 As shown, the clamping seat 12 is fixedly mounted on the base plate 1 by means of a positioning pin 20, a through hole is provided on the clamping seat 12, the sliding shaft 8 passes through the through hole on the clamping seat 12, and the outer circle of the sliding shaft 8 and the through hole on the clamping seat 12 are clearance-matched. A spring pressure plate 13 is provided in the clamping seat 12, a rectangular spring 14 is provided between one side of the spring pressure plate 13 and the clamping seat 12, an eccentric clamping shaft 19 is provided between the other side of the spring pressure plate 13 and the clamping seat 12, an eccentric cam is installed on the eccentric clamping shaft 19, the eccentric clamping shaft 19 is connected to the self-locking rod 6 by means of a screw 4, a self-locking handle 5 is installed at one end of the self-locking rod 6, and the other end of the self-locking rod 6 is limited by a stop pin 7, as shown in FIG. Figure 5 As shown. After the handle 3 is pushed, the sliding shaft 8 drives the movable jaw 9 to quickly move to the test rod clamping position, the self-locking handle 5 rotates clockwise, and the self-locking rod 6 drives the eccentric clamping shaft 19 to rotate, pushing the spring pressure plate 13 to swing and rotate, while compressing the rectangular spring 14, and the self-locking handle 5 drives the self-locking rod 6 to rotate to the stop pin 7. Relying on the self-locking characteristics of the eccentric cam (eccentricity is L) and the orifice cone surface where the spring pressure plate 13 and the sliding shaft 8 contact to form self-locking, hold the sliding shaft 8 tightly, maintain the clamping self-locking state during the test rod cutting process, and then the cutting process can be carried out.

[0039] like Figure 6 As shown, a small hole is opened on the clamping seat 12, and an adjustment screw 2 is installed in the small hole, and one end of the adjustment screw 2 presses the spring pressure plate 13. The adjustment screw 2 can adjust the clamping force of the rectangular spring 14 and the deflection angle of the spring pressure plate 13 to ensure reliable self-locking force.

[0040] like Figure 7 As shown, a dustproof sealing ring 21 is provided between the eccentric clamping shaft 19 and the clamping seat 12 to prevent external dirt from entering the interior of the clamp.

[0041] like Figure 8 As shown, the movable jaw 9 and the fixed jaw 10 are configured to have a serrated structure for clamping the test rod, which can effectively clamp the outer circle of the test rod, increase the clamping friction, and maintain the clamping stability. Meanwhile, the sharp serrated structure can penetrate into the surface of the workpiece, thereby achieving simultaneous clamping of multiple test rods with different outer circle sizes, ensuring that they can all be reliably clamped at the same time.

[0042] The jaws are consumable parts of the fixture and need to be replaced after long-term use. The movable jaw 9 is connected to the sliding shaft 8 by the movable jaw fixing screw 15, and the fixed jaw 10 is also connected to the bottom plate 1 by the hexagon socket bolt 11. When replacing, loosening the screw can achieve convenient and quick replacement.

[0043] When the clamp that quickly moves into position and clamps the utility model is working, the handle 3 is pushed, and the handle 3 drives the movable jaw 9 to quickly move to the clamping position through the sliding shaft 8, so that the test rod is clamped between the movable jaw 9 and the fixed jaw 10.

[0044] Turn the self-locking handle 5 clockwise, the self-locking rod 6 drives the eccentric clamping shaft 19 to rotate, pushes the spring pressure plate 13 to swing, and compresses the rectangular spring 14. The self-locking handle 5 drives the self-locking rod 6 to rotate to the stop pin 7. Adjust the top screw 2 to adjust the clamping force of the rectangular spring 14 and the swing angle of the spring pressure plate 13. Relying on the self-locking characteristics of the eccentric cam and the conical surface of the orifice where the spring pressure plate 13 and the sliding shaft 8 contact, self-locking is formed, and the sliding shaft 8 is tightly held to keep the test rod in a clamped and self-locking state, and cutting can be carried out.

[0045] After the test rod cutting process is completed, the self-locking handle 5 drives the self-locking rod 6 to rotate counterclockwise, loosens the sliding shaft 8, pulls the handle 3, and the handle 3 drives the movable jaw 9 to leave the clamping position through the sliding shaft 8 to remove the processed test rod.

[0046] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A clamp that moves quickly into position and clamps. It is characterized in that It comprises a base plate (1), a self-locking rod (6), a sliding shaft (8), a movable jaw (9), a fixed jaw (10) and a clamping seat (12); The fixed jaw (10) and the clamping seat (12) are both fixedly mounted on the base plate (1); the sliding shaft (8) passes through the clamping seat (12) and is connected to the movable jaw (9); the movable jaw (9) is slidably mounted on the base plate (1); a spring pressure plate (13) is arranged inside the clamping seat (12); a rectangular spring (14) is arranged between one side of the spring pressure plate (13) and the clamping seat (12); an eccentric clamping shaft (19) is arranged between the other side of the spring pressure plate (13) and the clamping seat (12); the eccentric clamping shaft (19) is connected to the self-locking rod (6); an eccentric cam is mounted on the eccentric clamping shaft (19); a small hole is opened on the clamping seat (12); an adjusting top screw (2) is mounted in the small hole; one end of the adjusting top screw (2) presses against the spring pressure plate (13).

2. A clamp that moves quickly into position and clamps according to claim 1, It is characterized in that The base plate (1) is fixedly mounted on the machine tool workbench via a working connection pin (16), a workbench connection screw (17) and a T-key (18).

3. A clamp that moves quickly into position and clamps according to claim 1, It is characterized in that The movable jaw (9) is fixedly mounted on one end of the sliding shaft (8) via a movable jaw fixing screw (15), and a handle (3) is mounted on the other end of the sliding shaft (8).

4. A clamp that moves quickly into position and clamps according to claim 1, It is characterized in that The fixed jaw (10) is fixedly mounted on the base plate (1) via a hexagon socket bolt (11).

5. A clamp that moves quickly into position and clamps according to claim 1, It is characterized in that The movable jaw (9) and the fixed jaw (10) are both provided with a sawtooth structure.

6. A clamp that moves quickly into position and clamps according to claim 1, It is characterized in that The self-locking rod (6) is connected to the eccentric clamping shaft (19) via a screw (4).

7. A clamp that moves quickly into position and clamps according to claim 1, It is characterized in that A dustproof sealing ring (21) is arranged between the eccentric clamping shaft (19) and the clamping seat (12).

8. A clamp that moves quickly into position and clamps according to claim 1, It is characterized in that A stop pin (7) is installed on the clamping seat (12), and the other end of the self-locking rod (6) is limited by the stop pin (7).

9. A clamp that moves quickly into position and clamps according to claim 1, It is characterized in that The clamping seat (12) is fixedly mounted on the base plate (1) via a positioning pin (20).

10. A clamp that moves quickly into position and clamps according to claim 1, It is characterized in that The clamping seat (12) is provided with a through hole, the sliding shaft (8) is installed in the through hole, and the sliding shaft (8) is clearance-matched with the through hole.

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