Anti-bending tool for heat treatment quenching of metal workpiece

Abstract

The utility model discloses an anti-bending tool for heat treatment quenching of a metal workpiece, which structurally comprises a main body unit comprising a bottom plate and an outer frame, and the outer frame is fixedly mounted on the bottom plate; and the separation assembly comprises a transverse rod, the transverse rod is slidably connected to the inner wall of the outer frame, and the two ends of the transverse rod are fixedly connected with movable blocks. When the clamping device is used, a metal workpiece is placed in the outer frame, the position of the clamping plate can be adjusted by sliding the clamping plate, then the clamping plate is fixed through the threaded plug pin, the workpiece can be clamped and fixed through the clamping plate and the outer frame, the triangular block and the spherical block are connected with the surface of the metal workpiece, the contact area can be reduced, and bending deformation of the surface of the metal workpiece is reduced. The distance between the cross rods can be adjusted, so that the device can adapt to metal workpieces with different sizes; when the workpiece is taken out for cooling after quenching, cooling liquid is injected into the copper pipe for circulation, so that rapid cooling of the contact surface of the metal workpiece and the bottom plate is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment of metal workpieces, in particular to an anti-bending tool for heat treatment and quenching of metal workpieces. Background Art

[0002] Metal heat treatment is one of the important processes in mechanical manufacturing. Compared with other processing technologies, heat treatment generally does not change the shape and overall chemical composition of the workpiece, but rather changes the internal microstructure of the workpiece or the chemical composition of the workpiece surface to impart or improve the performance of the workpiece. The phase change that occurs when a metal workpiece is quenched will cause the material to expand or contract, and due to the difference in cooling speed between the outer edge and the inside of the workpiece, thermal stress will be generated. This thermal stress is superimposed on the organizational stress during the quenching process, causing the metal workpiece to deform. Therefore, a tooling is needed to prevent the bending and deformation of the metal workpiece.

[0003] In a kind of anti-bending tool for heat treatment and quenching of metal workpieces disclosed in the publication number CN212152422U, although the utility model is provided with a plurality of positioning protrusions on the upper end of the bottom plate, the positioning protrusions are located directly below the positioning holes, the bottom surface of the workpiece is placed on the positioning protrusions and supported by the protrusions, the contact area between the protrusions and the end face of the workpiece is small, and the deformation of the end face during heat treatment is reduced. The utility model is provided with a plurality of rectangular positioning holes on the workpiece positioning frame, the positions of the positioning holes correspond to the positioning protrusions, and the workpiece can be placed in the positioning holes. The utility model is provided with side through holes at the front and rear ends of the workpiece positioning frame, so that the carburized layer on the surface of the workpiece can be fully quenched, the carburized layer depth is uniform, the hardness consistency is good, and the quality is stable.

[0004] However, the anti-bending fixture for heat treatment and quenching of metal workpieces has the following disadvantages: the crossbeam and longitudinal beam of the device are fixedly connected, so that the size of the positioning hole is fixed, which makes it difficult to adapt to workpieces of different sizes. Larger workpieces are difficult to put into the positioning holes, and smaller workpieces are difficult to fix when placed on the protrusions, and may tilt and shake during the quenching process. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] Therefore, in order to solve the above technical problems, the utility model provides the following technical solutions: a bending prevention tool for heat treatment and quenching of metal workpieces, the bending prevention tool for heat treatment and quenching of metal workpieces comprises:

[0007] The main unit comprises a bottom plate and an outer frame, wherein the outer frame is fixedly mounted on the bottom plate;

[0008] The partition assembly comprises a cross bar, the cross bar is slidably connected to the inner wall of the outer frame, the two ends of the cross bar are fixedly connected to movable blocks, a bidirectional screw is threadedly connected to the movable block at one end of the cross bar, a handle is fixedly connected to one end of the bidirectional screw, a gear is also fixedly connected to the surface of the bidirectional screw, and a chain is meshed on the surface of the gear;

[0009] The clamping assembly comprises a clamping plate, both ends of which are fixedly connected with sliders, the sliders are slidably connected in a slide groove provided on the inner wall of the outer frame, a threaded hole is provided on the slider, and a threaded pin is threadedly connected in the threaded hole.

[0010] As a preferred solution of the anti-bending tooling for heat treatment and quenching of metal workpieces described in the utility model, a U-shaped groove is opened inside the base plate, a copper tube is installed in the U-shaped groove, threaded grooves are opened on the inner walls at both ends of the copper tube, and the internal threads of the threaded grooves are connected to plugs.

[0011] As a preferred solution of the anti-bending tooling for heat treatment and quenching of metal workpieces described in the utility model, annular blocks are fixedly connected to both sides of the outer frame, and air holes are also opened on the surface of the outer frame.

[0012] As a preferred solution of the anti-bending tooling for heat treatment and quenching of metal workpieces described in the utility model, a socket is provided on the movable block at the other end of the crossbar, a connecting rod is inserted into the socket, and the connecting rod is fixedly connected to the side wall of the outer frame.

[0013] As a preferred solution of the anti-bending tooling for heat treatment and quenching of metal workpieces described in the utility model, wherein: the inner wall of the outer frame is also installed with a triangular block, and the clamping plate is installed with a spherical block.

[0014] As a preferred solution of the anti-bending tooling for heat treatment and quenching of metal workpieces described in the utility model, a through groove is opened on the surface of the clamping plate, and the cross bar penetrates the inside of the through groove.

[0015] Beneficial effects of the utility model:

[0016] When in use, put the metal workpiece into the outer frame, slide the clamp to adjust the position of the clamp, and then fix the clamp by the threaded pin, so that the workpiece can be clamped and fixed by the clamp and the outer frame, and the triangular block and the spherical block are connected to the surface of the metal workpiece to reduce the contact area and reduce the bending and deformation of the surface of the metal workpiece, and then the cross bar is used to separate the clamped metal workpieces, and the spacing between the cross bars is adjustable, so as to adapt to metal workpieces of different sizes; when the workpiece is quenched and taken out for cooling, the plug is loosened and removed, and water pipes are inserted into both ends of the copper tube, and coolant is injected into the circulation, so that the heat absorbed by the bottom plate is taken away by the coolant in the copper tube, thereby facilitating the rapid cooling of the contact surface between the metal workpiece and the bottom plate, thereby reducing the unstable quality of the workpiece caused by excessive temperature difference during cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 The utility model is a schematic diagram of the overall structure of the anti-bending tooling for heat treatment and quenching of metal workpieces.

[0019] Figure 2 The utility model is a schematic diagram of the structure of the anti-bending tooling separation component for heat treatment and quenching of metal workpieces.

[0020] Figure 3 The utility model is a schematic structural diagram of the anti-bending tool clamping assembly for heat treatment and quenching of metal workpieces.

[0021] Figure 4 The utility model is a schematic structural diagram of an anti-bending tooling copper tube for heat treatment and quenching of metal workpieces.

[0022] Figure 5 The utility model is a schematic diagram of the overall cross-sectional structure of the anti-bending tooling for heat treatment and quenching of metal workpieces.

[0023] In the figure: 100, main unit; 101, bottom plate; 1011, copper tube; 1012, plug port; 102, outer frame; 1021, annular block; 1022, air vent; 1023, triangular block;

[0024] 200, partition assembly; 201, crossbar; 202, movable block; 2021, connecting rod; 203, bidirectional screw; 204, handle; 205, gear; 206, chain;

[0025] 300, clamping assembly; 301, clamping plate; 3011, spherical block; 302, slider; 303, threaded pin. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0029] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included. Example

[0030] Reference Figure 1-5 , which is the first embodiment of the utility model, provides a bending prevention tool for heat treatment and quenching of metal workpieces, and the structure includes:

[0031] The main unit 100 includes a bottom plate 101 and an outer frame 102. The outer frame 102 is fixedly mounted on the bottom plate 101. The bottom plate 101 and the outer frame 102 are both made of Ni3Al intermetallic compound, which has excellent thermal strength, creep resistance and carburization resistance. The outer frame 102 is used to limit the separation component 200 and the clamping component 300 through the bottom plate 101;

[0032] The partition assembly 200 includes a cross bar 201, which is slidably connected to the inner wall of the outer frame 102, and movable blocks 202 are fixedly connected to both ends of the cross bar 201. A bidirectional screw 203 is threadedly connected to the movable block 202 at one end of the cross bar 201, and a handle 204 is fixedly connected to one end of the bidirectional screw 203. A gear 205 is also fixedly connected to the surface of the bidirectional screw 203, and a chain 206 is meshed on the surface of the gear 205. When in use, the handle 204 is rotated to drive the bidirectional screw 203 to rotate. At this time, the cross bar 201 moves toward each other on the surface of the bidirectional screw 203, thereby increasing the distance between the cross bar 201 and the inner wall of the outer frame 102, and vice versa. The cross bar 201 plays a role in separating the clamped metal workpieces, and the distance between the cross bars 201 can be adjusted to adapt to metal workpieces of different sizes;

[0033] The clamping assembly 300 includes a clamping plate 301, both ends of which are fixedly connected with sliders 302. The sliders 302 are slidably connected in a sliding groove provided on the inner wall of the outer frame 102. A threaded hole is provided on the slider 302, and a threaded pin 303 is threadedly connected in the threaded hole. When in use, after the metal workpiece is placed in the outer frame 102, the sliding clamping plate 301 can adjust the position of the clamping plate 301, and the size of the rectangle formed by the inner wall of the outer frame 102, the cross bar 201 and the clamping plate 301 can be adjusted. The clamping plate 301 is fixed by the threaded pin 303, so that workpieces of different sizes can be clamped.

[0034] Furthermore, a U-shaped groove is provided inside the bottom plate 101, a copper tube 1011 is installed in the U-shaped groove, threaded grooves are provided on the inner walls at both ends of the copper tube 1011, and a plug 1012 is connected to the inner thread of the threaded groove. When the workpiece is quenched and taken out for cooling, the plug 1012 is loosened and taken out, water pipes are inserted into both ends of the copper tube 1011, and coolant is injected into the circulation, so that the heat absorbed by the bottom plate 101 is taken away by the coolant in the copper tube 1011, which facilitates the rapid cooling of the contact surface between the metal workpiece and the bottom plate 101.

[0035] Furthermore, annular blocks 1021 are fixedly connected on both sides of the outer frame 102, and ventilation holes 1022 are also opened on the surface of the outer frame 102. The annular blocks 1021 can be dropped by a hook to facilitate the use of the tooling and prevent workers from getting burned due to manual operation errors. The ventilation holes 1022 can facilitate full quenching of the workpiece in the outer frame 102.

[0036] Furthermore, a socket is provided on the movable block 202 at the other end of the crossbar 201, and a connecting rod 2021 is inserted into the socket. The connecting rod 2021 is fixedly connected to the side wall of the outer frame 102. The other end of the crossbar 201 is limited by the connecting rod 2021, so that the movement of the crossbar 201 is smoother.

[0037] Furthermore, a triangular block 1023 is installed on the inner wall of the outer frame 102, and a spherical block 3011 is installed on the clamping plate 301. The triangular block 1023 and the spherical block 3011 are connected to the surface of the metal workpiece, which can reduce the contact area and reduce the bending deformation of the metal workpiece surface.

[0038] Furthermore, a through groove is formed on the surface of the clamping plate 301 , and the cross bar 201 passes through the through groove. The cross bar 201 passes through the through groove, which facilitates the lateral movement of the cross bar 201 .

[0039] During use, firstly, the metal workpiece is placed in the outer frame 102, and the sliding clamping plate 301 can adjust the position of the clamping plate 301, and adjust the size of the rectangle formed by the inner wall of the outer frame 102, the cross bar 201 and the clamping plate 301, and then fix the clamping plate 301 through the threaded pin 303, so that workpieces of different sizes can be clamped and fixed by the clamping plate 301 and the outer frame 102, and the triangular block 1023 and the spherical block 3011 are connected with the surface of the metal workpiece, so that the contact area can be reduced, and the bending deformation of the surface of the metal workpiece can be reduced;

[0040] Then, the handle 204 is rotated to drive the bidirectional screw 203 to rotate. At this time, the cross bar 201 moves toward each other on the surface of the bidirectional screw 203, thereby increasing the distance between the cross bar 201 and the inner wall of the outer frame 102, and vice versa. The cross bar 201 plays a role of separating the clamped metal workpieces, and the distance between the cross bars 201 can be adjusted to accommodate metal workpieces of different sizes;

[0041] Finally, when the workpiece is quenched and taken out for cooling, the plug 1012 is loosened and removed, water pipes are inserted into both ends of the copper tube 1011, and the coolant is injected into the circulation so that the heat absorbed by the bottom plate 101 is taken away by the coolant in the copper tube 1011, which facilitates the rapid cooling of the contact surface between the metal workpiece and the bottom plate 101.

[0042] It is worth noting that the entire device is controlled by a controller. Since the controller is a commonly used device and belongs to the existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A bending prevention tool for heat treatment and quenching of metal workpieces, characterized in that: include, The main unit (100) comprises a bottom plate (101) and an outer frame (102), wherein the outer frame (102) is fixedly mounted on the bottom plate (101); The partition assembly (200) comprises a crossbar (201), wherein the crossbar (201) is slidably connected to the inner wall of the outer frame (102), and movable blocks (202) are fixedly connected to both ends of the crossbar (201), a bidirectional screw (203) is threadedly connected to the movable block (202) at one end of the crossbar (201), and a handle (204) is fixedly connected to one end of the bidirectional screw (203), and a gear (205) is also fixedly connected to the surface of the bidirectional screw (203), and a chain (206) is meshed on the surface of the gear (205); The clamping assembly (300) comprises a clamping plate (301), wherein two ends of the clamping plate (301) are fixedly connected to sliders (302), the sliders (302) are slidably connected in a slide groove provided on the inner wall of the outer frame (102), a threaded hole is provided on the slider (302), and a threaded pin (303) is threadedly connected in the threaded hole.

2. The anti-bending tool for heat treatment and quenching of metal workpieces according to claim 1, characterized in that: A U-shaped groove is provided inside the bottom plate (101), a copper tube (1011) is installed inside the U-shaped groove, thread grooves are provided on the inner walls at both ends of the copper tube (1011), and plugs (1012) are connected to the inner threads of the thread grooves.

3. The anti-bending tool for heat treatment and quenching of metal workpieces according to claim 1, characterized in that: Annular blocks (1021) are fixedly connected to both sides of the outer frame (102), and air holes (1022) are also provided on the surface of the outer frame (102).

4. The anti-bending tool for heat treatment and quenching of metal workpieces according to claim 1, characterized in that: A plug hole is provided on the movable block (202) at the other end of the crossbar (201), a connecting rod (2021) is inserted into the plug hole, and the connecting rod (2021) is fixedly connected to the side wall of the outer frame (102).

5. The anti-bending tool for heat treatment and quenching of metal workpieces according to claim 1, characterized in that: A triangular block (1023) is also installed on the inner wall of the outer frame (102), and a spherical block (3011) is installed on the clamping plate (301).

6. The anti-bending tool for heat treatment and quenching of metal workpieces according to claim 1, characterized in that: A through groove is provided on the surface of the clamping plate (301), and the cross bar (201) passes through the inside of the through groove.

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