Dovetail jaw type flat push clamp
By combining the dovetail jaw design with the anti-rotation positioning block, the problem of inconvenient jaw loading and unloading in existing flat-push clamps is solved, enabling quick installation and disassembly of the jaws and improving operational convenience.
Patent Information
- Application Number
- CN202520266759.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-19
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-02-19
AI Technical Summary
The existing flat-push clamps are inconvenient to load and unload, especially because the small gap between the positioning steps results in a narrow space during loading and unloading, making it difficult to operate conveniently.
The jaws feature a dovetail groove design, with a dovetail groove positioning block that is fixedly connected to the piston rod. The dovetail groove jaws move in the front-to-back direction, facilitating installation or disassembly. Combined with an anti-rotation positioning block, rotation is prevented, enabling quick loading and unloading of the jaws.
It enables quick installation and removal of the jaws, improving the convenience and efficiency of operation.
Smart Images
Figure CN223581583U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to mechanical field especially, and relates to frock clamp, and particularly to a dovetail groove tong mouth formula flat push clamp. BACKGROUND
[0002] The flat push clamp drives the tong mouth to clamp the sample through two left and right hydraulic cylinders, and the upper and lower clamps respectively move up and down to carry out the tensile test to the sample. SUMMARY
[0003] The utility model discloses a dovetail groove tong mouth formula flat push clamp, and the dovetail groove tong mouth formula flat push clamp solves the technical problem that the tong mouth is inconvenient to assemble or disassemble in the prior art.
[0004] The utility model relates to a dovetail groove tong mouth formula flat push clamp, including tong mouth seat, be provided with a recess on the tong mouth seat, be provided with a clamping mechanism in the recess left side and right side in the tong mouth seat respectively, any one clamping mechanism all includes a hydraulic cylinder, and the hydraulic cylinder includes piston rod, and the end surface of piston rod is provided with dovetail groove positioning block, and the dovetail groove positioning block is fixedly connected with piston rod through the axial dovetail groove connecting screw, and the inside portion of dovetail groove positioning block sets in the end surface of piston rod, and the outside portion of dovetail groove positioning block sets in the outside of the end surface of piston rod, and the length direction of dovetail groove positioning block is parallel to the front and back direction, and the outside of dovetail groove positioning block is connected with a dovetail groove tong mouth, and the side of dovetail groove tong mouth is provided with the dovetail groove of cooperation with the outside portion of dovetail groove positioning block, and the dovetail groove tong mouth is fixedly connected with dovetail groove positioning block through the radial tong mouth connecting screw.
[0005] Further, the inside portion of the dovetail groove positioning block is a cylinder, the axial direction of the inside portion of the dovetail groove positioning block is parallel to the axial direction of the piston rod, a first positioning groove is arranged in the outer circumferential surface of the inside portion of the dovetail groove positioning block, a second positioning groove is arranged in the piston rod, and an anti-rotation positioning block is arranged in the first positioning groove and the second positioning groove, and the anti-rotation positioning block is fixedly connected with the piston rod through an axial anti-rotation connecting screw.
[0006] Further, at least two positioning table tong mouth mounting holes are further arranged in the end surface of the piston rod in the circumferential direction.
[0007] Compared with the prior art, the utility model has the effects of being positive and obvious. The step positioning tong mouth is improved to the dovetail groove tong mouth in the utility model, the dovetail groove tong mouth is positioned through the dovetail groove and the dovetail groove positioning block, the dovetail groove tong mouth is moved along the front and back direction, and the dovetail groove tong mouth can be assembled or disassembled with the dovetail groove positioning block, which is convenient and fast. Attached Figure Description
[0008] Figure 1 This is a cross-sectional schematic diagram of a dovetail groove jaw type flat push clamp according to the present invention.
[0009] Figure 2 for Figure 1 A schematic diagram of the AA section.
[0010] Figure 3 for Figure 1 BB cross-sectional diagram.
[0011] Figure 4 This is a three-dimensional schematic diagram of a dovetail groove jaw type flat push clamp of this utility model. Detailed Implementation
[0012] The present invention will be further described below with reference to embodiments, but the present invention is not limited to these embodiments. Any similar variations using the present invention should be included within the protection scope of the present invention. The use of directions such as up, down, front, back, left, right, center, inside, and outside in the present invention is only for the convenience of clear description and is not intended to limit the technical solution of the present invention.
[0013] like Figures 1-4 As shown, this utility model discloses a dovetail-groove jaw-type flat push clamp, including a jaw seat 1. The jaw seat 1 has a notch. A clamping mechanism is provided on the left and right sides of the notch in the jaw seat 1. Each clamping mechanism includes a hydraulic cylinder 2. The hydraulic cylinder 2 includes a piston rod 3. A dovetail-groove positioning block 5 is provided in the end face of the piston rod 3. The dovetail-groove positioning block 5 is fixedly connected to the piston rod 3 by an axial dovetail-groove connecting screw 4. The inner part of the dovetail-groove positioning block 5 is located in the end face of the piston rod 3, and the outer part of the dovetail-groove positioning block 5 is located outside the end face of the piston rod 3. The length direction of the dovetail-groove positioning block 5 is parallel to the front-back direction. A dovetail-groove jaw 8 is connected to the outer side of the dovetail-groove positioning block 5. The side of the dovetail-groove jaw 8 is provided with a dovetail groove that mates with the outer part of the dovetail-groove positioning block 5. The dovetail-groove jaw 8 is fixedly connected to the dovetail-groove positioning block 5 by a radial jaw connecting screw 9.
[0014] Furthermore, the inner part of the dovetail groove positioning block 5 is cylindrical, and the axial direction of the inner part of the dovetail groove positioning block 5 is parallel to the axial direction of the piston rod 3. A first positioning groove is provided in the outer circumferential surface of the inner part of the dovetail groove positioning block 5, and a second positioning groove is provided in the piston rod 3. Anti-rotation positioning blocks 6 are provided in the first positioning groove and the second positioning groove. The anti-rotation positioning blocks 6 are fixedly connected to the piston rod 3 by axial anti-rotation connecting screws 7.
[0015] Further, at least two positioning bench jaw opening mounting holes (not shown in the figure) are arranged in the end face of the piston rod 3 in the circumferential direction.
[0016] Specifically, the specific structure and principle of the hydraulic cylinder 2 and other components in the embodiment and other unexplained places all adopt the known scheme in the prior art, and those skilled in the art are all aware of it, which will not be repeated here.
[0017] The working principle of the embodiment is as follows: when the test is carried out, the test sample is placed between the two dovetail groove jaws 8, the hydraulic cylinder 2 drives the dovetail groove jaws 8 to move through the piston rod 3 and the dovetail groove positioning block 5, the test sample is clamped, the testing machine is started, and the upper and lower two flat push clamps are respectively moved upward and downward, and the tensile test of the test sample is completed.
[0018] The step positioning jaw is improved to the dovetail groove jaw 8 in the utility model, the dovetail groove jaw 8 is positioned through the dovetail groove and the dovetail groove positioning block 5, the dovetail groove jaw 8 is moved in the front and back directions, and the dovetail groove jaw 8 can be installed or disassembled with the dovetail groove positioning block 5, which is convenient and fast.
[0019] The anti-rotation positioning block 6 can ensure that the dovetail groove positioning block 5 does not rotate when the piston rod 3 moves back and forth. After the installation of the dovetail groove jaw 8 and the dovetail groove positioning block 5 is completed, the dovetail groove jaw 8 also does not rotate. In order to prevent the dovetail groove jaw 8 from moving forward and backward, the dovetail groove jaw 8 and the dovetail groove positioning block 5 are fixedly connected through the jaw connecting screw 9.
[0020] The piston rod 3 retains the positioning bench jaw opening mounting hole, so that the positioning bench jaw and the dovetail groove jaw 8 can be used interchangeably.
Claims
1. A dovetail-groove jaw type flat push clamp, characterized in that, The device includes a jaw seat with a notch. A clamping mechanism is located on the left and right sides of the notch. Each clamping mechanism includes a hydraulic cylinder with a piston rod. A dovetail groove positioning block is located on the end face of the piston rod. The dovetail groove positioning block is fixedly connected to the piston rod by an axial dovetail groove connecting screw. The inner part of the dovetail groove positioning block is located in the end face of the piston rod, and the outer part is located outside the end face of the piston rod. The length direction of the dovetail groove positioning block is parallel to the front-back direction. A dovetail groove jaw is connected to the outer side of the dovetail groove positioning block. The side of the dovetail groove jaw has a dovetail groove that mates with the outer part of the dovetail groove positioning block. The dovetail groove jaw is fixedly connected to the dovetail groove positioning block by a radial jaw connecting screw.
2. The dovetail-groove jaw type flat push clamp according to claim 1, characterized in that, The inner part of the dovetail groove positioning block is cylindrical, and the axial direction of the inner part of the dovetail groove positioning block is parallel to the axial direction of the piston rod. A first positioning groove is provided in the outer circumferential surface of the inner part of the dovetail groove positioning block, and a second positioning groove is provided in the piston rod. Anti-rotation positioning blocks are provided in the first positioning groove and the second positioning groove. The anti-rotation positioning blocks are fixedly connected to the piston rod by axial anti-rotation connecting screws.
3. The dovetail-groove jaw type flat push clamp according to claim 1, characterized in that, The piston rod also has at least two positioning jaw mounting holes along the circumferential direction on its end face.