Isothermal quenching high-strength pull claw

Abstract

The utility model relates to the field of machine tool pulling claws, and discloses an isothermal quenching high-strength pulling claw which comprises a claw clamp body. The number of the claw pieces is multiple, and the multiple claw pieces are arranged on the periphery of the claw clamp body and distributed in a circumferential array mode. The number of the connecting blocks is multiple, the connecting blocks are installed on one side of the claw clamp body, and the claw pieces are installed on the connecting blocks. According to the utility model, by designing the structures of the connecting block and the rotating piece, the flexible connection between the claw piece and the claw clamp body is realized, the rotating piece can move in the through hole, and the connection and disconnection between the claw piece and the connecting block can be easily realized through the control of the push rod, so that the flexibility of connection is improved; therefore, the claw pieces can be quickly replaced when being abraded or damaged, and the continuous working capacity of the pull claw is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of machine tool pullers, and in particular to a high-strength puller that has been isothermally quenched. Background Technology

[0002] A pull jaw is a commonly used mechanical clamping device that utilizes the principle of a helical pair for clamping. It is suitable for clamping workpieces with circular, hexagonal, square, elliptical, and other cross-sections. By operating a handle or using a cylinder or similar device, the helical pair is moved axially, causing the jaws to clamp or release. The handle or cylinder controls the movement of the jaws, thus tightly securing the workpiece and preventing displacement during processing.

[0003] The existing claw plates have low flexibility in connection with the claw body. The rotating shaft on the claw body is difficult to disassemble and assemble after installation, which is not conducive to the quick replacement and maintenance of the claw plates. Utility Model Content

[0004] To solve the problems mentioned above, this utility model is implemented through the following technical solution.

[0005] A high-strength draw gripper that has undergone isothermal quenching includes: a gripper body; several gripper plates arranged in a circular array around the gripper body; several connecting blocks mounted on one side of the gripper body, with the gripper plates mounted on the connecting blocks; each connecting block includes two rotating members mounted on opposite sides of the connecting block, the two rotating members being configured to move closer or further apart simultaneously, and the gripper plates being connected to the connecting blocks via the rotating members.

[0006] Preferably, the connecting block further includes a through hole, which is formed on the connecting block, and both of the rotating members are connected in the through hole, wherein the rotating members are configured to move within the through hole.

[0007] Preferably, the connecting block further includes an elastic element installed between the two rotating elements.

[0008] Preferably, the jaw clamp body includes: an adjusting sleeve disposed at one end of the jaw clamp body, the adjusting sleeve being connected to the jaw clamp body via threads; and several push rods, the push rods being disposed through the jaw clamp body, one end of each push rod contacting the inner wall of the adjusting sleeve, the other end of each push rod extending into a through hole, and the ends of the two rotating parts that are close to each other contacting the push rods.

[0009] Preferably, the claw includes: a groove formed at one end of the claw, and the connecting block disposed in the groove; and two rotating slots, each formed on one side wall of the groove, and the two rotating components disposed in the two rotating slots respectively.

[0010] Preferably, the claw body further includes a screw, which is installed at one end of the claw body.

[0011] Preferably, it further includes: a retainer, wherein the jaw clamp body is installed inside the retainer, and the screw is connected inside the retainer.

[0012] Preferably, the end of the push rod near the rotating component is conical.

[0013] This invention provides a high-strength draw gripper that has undergone isothermal quenching. Compared with existing technologies, it has the following advantages: By designing the connecting block and rotating component structure, a flexible connection between the gripper and the gripper body is achieved. The rotating component can move within the through hole. By controlling the push rod, the connection and disconnection between the gripper and the connecting block can be easily achieved, improving the flexibility of the connection. The disassembly and assembly process of this solution is simpler. By controlling the push rod, precise control of the rotating component can be achieved. The disassembly and assembly of the gripper can be completed without complicated tools or steps, allowing the gripper to be quickly replaced when worn or damaged, ensuring the continuous working capability of the draw gripper. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the retainer proposed in this utility model.

[0016] Figure 3 This is a schematic diagram of the handle and claw structure proposed in this utility model.

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the handle, claw, connecting block and adjusting sleeve proposed in this utility model.

[0018] Figure 5 This is a partial enlarged cross-sectional view of the handle and claw plate proposed in this utility model.

[0019] Figure 6 This is a partial enlarged cross-sectional view of the handle, adjusting sleeve, and connecting block proposed in this utility model.

[0020] The attached figures are labeled as follows:

[0021] 100. Holder;

[0022] 200. Claw gripper body; 201. Screw;

[0023] 300, claw plate; 301, groove; 302, rotating groove;

[0024] 400. Connecting block; 401. Rotating component; 402. Elastic component;

[0025] 500, Adjusting sleeve; 501, Push rod. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of protection of the present invention.

[0027] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model.

[0028] Reference Figures 1-6 A high-strength draw gripper that has undergone isothermal quenching includes: a gripper body 200; several gripper plates 300 arranged in a circular array around the gripper body 200; several connecting blocks 400 mounted on one side of the gripper body 200, with the gripper plates 300 mounted on the connecting blocks 400; each connecting block 400 includes two rotating members 401, which are respectively mounted on both sides of the connecting block 400 and are configured to move closer or further apart simultaneously; the gripper plates 300 are connected to the connecting blocks 400 via the rotating members.

[0029] In this embodiment, the claw plate 300 and the claw gripper body 200 can be flexibly connected through the connecting block 400. The claw plate 300 can be flexibly installed and removed from the connecting block 400. After the claw plate 300 is installed on the connecting block 400, the two rotating parts 401 can be controlled to connect with the claw plate 300, so that the claw plate 300 can rotate on the connecting block 400. Conversely, by controlling the two rotating parts 401 to move away from each other, the connection between the claw plate 300 and the connecting block 400 can be canceled.

[0030] The aforementioned claw 300 uses 42CrMo steel, which possesses excellent comprehensive mechanical properties, as the claw material. The compositional uniformity of the raw materials is strictly controlled, and the banded microstructure must be better than grade 2. A slightly higher austenitizing temperature of 860℃ is used, followed by isothermal quenching to obtain approximately 80% lower bainite content and a hardness of 48-50 HRC. The microstructure consists of approximately 80% lower bainite plus a suitable amount of acicular martensite. The tensile force reaches 10000 N·m, approximately 30% higher than that of vacuum-heat-treated 30Cr13Mo claws. The clamping and releasing cycle test reaches 200,000 cycles, and each claw can be used for approximately 3 years without replacement.

[0031] Reference Figure 5 and Figure 6 The connecting block 400 further includes: a through hole, which is formed on the connecting block 400, and the two rotating members 401 are connected in the through hole. The rotating members 401 are configured to move in the through hole; an elastic member 402 is installed between the two rotating members 401; and the end of the push rod 501 near the rotating member 401 is conical.

[0032] The conical design of the push rod 501 enables precise control of the rotating component 401. When the push rod 501 is pushed, it can compress the two rotating components 401, causing them to be pressed into the rotating groove 302, thus connecting the rotating component 401 with the claw plate 300. The elastic component 402 provides the restoring force for the two rotating components 401 to their initial positions. That is, when the push rod 501 moves away from the rotating component 401, the elastic component 402 causes the two rotating components 401 to move closer to each other, disengaging the rotating component 401 from the claw plate 300, allowing the claw plate 300 to be removed from the connecting block 400. The elastic component 402 can be a spring or an elastic rope.

[0033] Reference Figure 3 and Figure 4 The jaw gripper body 200 includes: an adjusting sleeve 500 disposed at one end of the jaw gripper body 200, the adjusting sleeve 500 being connected to the jaw gripper body 200 by a thread; several push rods 501, the several push rods 501 being disposed through the jaw gripper body 200, one end of the push rod 501 contacting the inner wall of the adjusting sleeve 500, the other end of the push rod 501 extending into a through hole, and the ends of the two rotating parts 401 being close to each other contacting the push rods 501; and a screw 201 installed at one end of the jaw gripper body 200.

[0034] The aforementioned adjusting sleeve 500 is threadedly connected to the jaw clamp body 200. When the adjusting sleeve 500 is rotated, the adjusting sleeve 500 can move closer to or further away from the jaw plate 300. The adjusting sleeve 500 can drive the push rod 501 to move. By turning the handle or using a cylinder or other device to control the screw 201 to move axially, the pull jaw can clamp or loosen.

[0035] Reference Figure 5 and Figure 6 The claw plate 300 includes: a groove 301, which is formed at one end of the claw plate 300, and the connecting block 400 is disposed in the groove 301; and two rotating grooves 302, which are respectively formed on the two side walls of the groove 301, and two rotating parts 401 are respectively disposed in the two rotating grooves 302.

[0036] Reference Figure 1 and Figure 2The retainer 100, the claw body 200 is installed inside the retainer 100, and the screw 201 is connected inside the retainer 100.

[0037] During use, the jaw clamp body 200 is installed inside the retainer 100, ensuring that the screw 201 is correctly connected inside the retainer 100. When it is necessary to install the jaw piece 300, align the groove 301 of the jaw piece 300 with the connecting block 400, and place the connecting block 400 into the groove 301. Then, by rotating the adjusting sleeve 500, the adjusting sleeve 500 rotates and shifts on the jaw clamp body 200. The adjusting sleeve 500 can push the push rod 501. One end of the push rod 501 contacts the inner wall of the adjusting sleeve 500, and the other end extends into the through hole, pushing the two rotating parts 401 closer to each other. Under the action of the push rod 501, the rotating parts 401 are squeezed into the rotating groove 302, realizing the connection between the jaw piece 300 and the connecting block 400. Since the end of the push rod 501 near the rotating part 401 is conical, the position of the rotating part 401 can be precisely controlled. To disassemble the claw 300, rotate the adjusting sleeve 500 in the reverse direction. This will cause the push rod 501 to move in the opposite direction, causing the rotating parts 401 to move away from each other under the action of the elastic element 402 and exit from the rotating groove 302. The claw 300 can then be removed from the connecting block 400. When it is necessary to clamp an object, the screw 201 can be moved axially by turning the handle or using a cylinder or other device. The movement of the screw 201 will cause the claw body 200 and the claw 300 to move together. When the claw 300 enters the retainer 100, the retainer 100 will restrict the position of the claw 300, thereby clamping the object. When it is necessary to release the object, operate the screw 201 in the reverse direction to return the claw body 200 and the claw 300 to their original positions and release the object. During long-term use, if the claw 300 is found to be worn or damaged, it can be disassembled and replaced with a new claw 300 according to the above procedure.

[0038] In summary, compared with existing technologies, it has the following beneficial effects:

[0039] By designing the connecting block 400 and the rotating component 401, a flexible connection between the claw plate 300 and the claw clamp body 200 is achieved. The rotating component 401 can move within the through hole. By controlling the push rod 501, the connection and disconnection between the claw plate 300 and the connecting block 400 can be easily realized, thus improving the flexibility of the connection.

[0040] The disassembly and assembly process of this solution is simpler. By controlling the push rod 501, the rotating part 401 can be precisely controlled. The disassembly and assembly of the claw 300 can be completed without complicated tools or steps, so that the claw 300 can be quickly replaced when it is worn or damaged, ensuring the continuous working capability of the claw.

[0041] By optimizing the connection structure, this solution not only improves the connection strength between the claw plate 300 and the claw body 200, but also makes the claw more stable and reliable when clamping and releasing objects. The isothermal quenching treatment further improves the strength and hardness of the claw, enabling it to better adapt to various working environments and task requirements.

[0042] Therefore, although the present invention has been described herein with reference to specific embodiments thereof, freedom of modification, various changes and substitutions are also within the scope of the above disclosure, and it should be understood that in some cases, certain features of the present invention may be adopted without departing from the scope and spirit of the invention and without corresponding use of other features. Thus, many modifications can be made to adapt a particular environment or material to the essential scope and spirit of the present invention. The present invention is not intended to be limited to the specific terms used in the following claims and / or the specific embodiments disclosed as the best mode of carrying out the present invention, but the present invention will include any and all embodiments and equivalents falling within the scope of the appended claims. Therefore, the scope of the present invention will be determined only by the appended claims.

Claims

1. An isothermally quenched high-strength drawbead characterized by, Include: Claw body (200); Claw piece (300), a plurality of, a plurality of said claw piece (300) is arranged around the claw body (200), is distributed in a circular array; The connecting block (400) is a plurality of, a plurality of said connecting block (400) is installed on one side of the claw body (200), and the claw piece (300) is installed on the connecting block (400); The connecting block (400) comprises a rotating piece (401), two said rotating piece (401) is installed on both sides of the connecting block (400), and the two rotating pieces (401) are arranged to be close or far away at the same time, and the claw piece (300) is connected with the connecting block (400) through the rotating piece.

2. The isothermally quenched high-strength drawbead of claim 1, wherein The connecting block (400) further comprises: The through hole is provided on the connecting block (400), and the two rotating pieces (401) are connected in the through hole, and the rotating piece (401) is arranged to move in the through hole.

3. A high-strength isothermally quenched draw jaw according to claim 2, characterized in that The connecting block (400) further comprises: Elastic member (402), installed between the two rotating pieces (401).

4. The isothermally hardened high-strength drawbead according to claim 2, characterized in that The claw body (200) comprises: Adjusting sleeve (500), arranged on one end of the claw body (200), the adjusting sleeve (500) is connected with the claw body (200) through threads; Push rod (501), a plurality of, a plurality of said push rod (501) is arranged through the claw body (200), one end of the push rod (501) is in contact with the inner wall of the adjusting sleeve (500), and the other end of the push rod (501) extends into the through hole, and the two rotating pieces (401) are in contact with the push rod (501) at one end.

5. The isothermally hardened high-strength drawbead according to claim 1, characterized in that The claw piece (300) comprises: Groove (301), arranged on one end of the claw piece (300), the connecting block (400) is arranged in the groove (301); The rotating groove (302) is two, two said rotating groove (302) is arranged on the two side walls of the groove (301), and the two rotating pieces (401) are arranged in the two rotating grooves (302).

6. The isothermally hardened high-strength drawbead according to claim 1, characterized in that The claw body (200) further comprises: Screw rod (201), installed on one end of the claw body (200).

7. An isothermally quenched high-strength draw bead according to claim 6, characterized in that Further comprising: Holder (100), the claw body (200) is installed in the holder (100), and the screw rod (201) is connected in the holder (100).

8. The isothermally hardened high-strength drawbead according to claim 4, characterized in that The end of the push rod (501) close to the rotating piece (401) is conical.

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