Laser quenching processing equipment

Abstract

The invention discloses laser quenching machining equipment which comprises a workpiece support, a laser quenching head, a laser quenching movement mechanism and a cooling and pressurizing device, the workpiece support is used for supporting a workpiece to be quenched, the laser quenching head is connected to the laser quenching movement mechanism, and the laser quenching movement mechanism can adjust the position of the laser quenching head. The laser quenching head can heat the workpiece, and the cooling and pressurizing device can pressurize and cool the surface of the heated workpiece, so that thermal deformation of the workpiece in the quenching process can be reduced, the quenching quality of the workpiece is further improved, pressurizing and cooling can be performed simultaneously, and the quenching efficiency can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of quenching, and in particular to a laser quenching processing device. Background Art

[0002] In the manufacturing industry, surface quenching of workpieces is a key technology to improve their surface hardness and wear resistance. Quenching is usually a treatment method in which the workpiece is heated to above its critical temperature and then rapidly cooled.

[0003] Traditional quenching methods will produce defects such as workpiece deformation and cracks caused by internal stress when facing bar-shaped workpieces. Existing bar-shaped workpiece quenching methods mainly include flame quenching, induction quenching, etc. Flame quenching and induction quenching are difficult to process workpieces with complex shapes and large sizes due to their low energy density and difficult to accurately control the heating area.

[0004] Therefore, how to improve the quenching quality of workpieces is a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0005] The purpose of the present invention is to provide a laser quenching processing equipment, which can effectively reduce the deformation of the workpiece during the quenching process, thereby improving the quenching quality of the workpiece.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A laser quenching processing equipment, comprising:

[0008] A workpiece support, the workpiece support is used to support the workpiece to be quenched;

[0009] A laser quenching head and a laser quenching motion mechanism, wherein the laser quenching head is connected to the laser quenching motion mechanism, the laser quenching motion mechanism is used to adjust the position of the laser quenching head, and the laser quenching head is used to heat the workpiece;

[0010] A cooling and pressurizing device is used to pressurize and cool the surface of the heated workpiece.

[0011] In some embodiments, the workpiece support includes a first support and a second support, and the two ends of the workpiece are placed on the first support and the second support respectively; the cooling and pressurizing device includes an upper cooling and pressurizing component and a lower cooling and pressurizing component, and the upper cooling and pressurizing component and the lower cooling and pressurizing component are used to cool and pressurize the upper surface and lower surface of the workpiece respectively.

[0012] In some embodiments, the first support and the second support each include a first clamping plate, a second clamping plate and a clamping drive, wherein the clamping drive is used to drive the first clamping plate and / or the second clamping plate to move toward each other to clamp the workpiece.

[0013] In some embodiments, the workpiece support further comprises a support rail, and the first support and the second support are slidably connected to the support rail.

[0014] In some embodiments, the upper cooling and pressurizing assembly includes an upper translation drive, an upper water-cooled pressure plate and at least one upper hydraulic cylinder, the upper water-cooled pressure plate is connected to the bottom of each of the upper hydraulic cylinders, the upper hydraulic cylinder is connected to the upper translation drive, the upper hydraulic cylinder is used to drive the upper water-cooled pressure plate to rise and fall, and the upper translation drive is used to drive the upper hydraulic cylinder to move along the length direction of the workpiece; the lower cooling and pressurizing assembly includes a lower translation drive, a lower water-cooled pressure plate and at least one lower hydraulic cylinder, the lower water-cooled pressure plate is connected to the top of each of the lower hydraulic cylinders, the lower hydraulic cylinder is connected to the lower translation drive, the lower hydraulic cylinder is used to drive the lower water-cooled pressure plate to rise and fall, and the lower translation drive is used to drive the lower hydraulic cylinder to move along the length direction of the workpiece.

[0015] In some embodiments, the laser quenching processing equipment also includes a frame, which includes a bottom frame and a top frame, the top frame is arranged above the bottom frame, the workpiece support is arranged on the upper part of the bottom frame, the lower cooling and pressurizing assembly is arranged in the bottom frame, and the upper cooling and pressurizing assembly is arranged on the top frame.

[0016] In some embodiments, a lower slide rail for the lower hydraulic cylinder to move is provided at the bottom of the base frame, and an upper slide rail for the upper hydraulic cylinder to move is provided on the top frame, and the upper slide rail is parallel to the lower slide rail.

[0017] In some embodiments, the top frame is provided with an avoidance hole, and the laser quenching head passes through the avoidance hole from top to bottom.

[0018] In some embodiments, the laser quenching processing equipment also includes a side guide rail and a side translation drive unit, the laser quenching motion mechanism is arranged on the side guide rail, and the side translation drive unit is connected to the laser quenching motion mechanism for driving the laser quenching motion mechanism to move along the side guide rail.

[0019] In some embodiments, the laser quenching motion mechanism is a robotic arm, the bottom of the robotic arm is slidably connected to the side guide rail via a mounting seat, and the laser quenching head is connected to the end of the robotic arm.

[0020] Compared with the prior art, the above technical solution has the following advantages:

[0021] The laser quenching processing equipment provided by the present invention comprises: a workpiece support, a laser quenching head, a laser quenching motion mechanism and a cooling and pressurizing device, wherein the workpiece support is used to support the workpiece to be quenched, the laser quenching head is connected to the laser quenching motion mechanism, the laser quenching motion mechanism can adjust the position of the laser quenching head, the laser quenching head can heat the workpiece, and the cooling and pressurizing device can pressurize and cool the surface of the heated workpiece, thereby reducing the thermal deformation of the workpiece during the quenching process, thereby improving the quenching quality of the workpiece, and pressurization and cooling can be performed simultaneously, which can effectively improve the quenching efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the three-dimensional structure of a laser quenching processing device from one viewing angle provided by a specific embodiment of the present invention;

[0024] Figure 2 A schematic diagram of the three-dimensional structure of a laser quenching processing device from another perspective provided in a specific embodiment of the present invention;

[0025] Figure 3 A schematic diagram of the main structure of a laser quenching processing device provided in a specific embodiment of the present invention;

[0026] Figure 4 A schematic side view of the structure of a laser quenching processing device provided in a specific embodiment of the present invention;

[0027] Figure 5 A schematic structural diagram of an upper translation drive unit of a laser quenching processing device provided in a specific embodiment of the present invention.

[0028] The reference numerals are as follows:

[0029] 100-workpiece;

[0030] 10-workpiece support, 11-support guide rail, 12-first support, 13-second support, 14-clamping drive member;

[0031] 20-Laser quenching head;

[0032] 30-laser quenching motion mechanism, 31-side guide rail, 32-side translation drive unit, 33-mounting seat;

[0033] 40-cooling and pressurizing device, 41-upper cooling and pressurizing assembly, 411-upper translation driving member, 412-upper mounting plate, 413-upper hydraulic cylinder, 414-upper water-cooling and pressurizing plate, 415-upper slide rail, 42-lower cooling and pressurizing assembly, 421-lower translation driving member, 422-lower hydraulic cylinder, 423-lower mounting plate, 424-lower water-cooling and pressurizing plate, 425-lower slide rail;

[0034] 50-rack. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0036] Please refer to Figures 1 to 5 .

[0037] A laser quenching processing equipment provided by an embodiment of the present invention includes: a workpiece support 10, a laser quenching head 20, a laser quenching motion mechanism 30 and a cooling and pressurizing device 40, wherein the workpiece support 10 is used to support a workpiece 100 to be quenched, the laser quenching head 20 is connected to the laser quenching motion mechanism 30, the laser quenching motion mechanism 30 can adjust the position of the laser quenching head 20, the laser quenching head 20 can heat the workpiece 100, and the cooling and pressurizing device 40 can pressurize and cool the surface of the heated workpiece 100. Since the cooling and pressurizing device 40 can pressurize and cool the workpiece 100, the thermal deformation of the workpiece 100 during the quenching process can be reduced, thereby improving the quenching quality of the workpiece 100, and pressurization and cooling can be performed simultaneously, which can effectively improve the quenching efficiency.

[0038] In some embodiments, the workpiece support 10 includes a first support 12 and a second support 13, and the two ends of the workpiece 100 are placed on the first support 12 and the second support 13, that is, the workpiece 100 is supported by the first support 12 and the second support 13; the cooling and pressurizing device 40 includes an upper cooling and pressurizing assembly 41 and a lower cooling and pressurizing assembly 42, and the upper cooling and pressurizing assembly 41 and the lower cooling and pressurizing assembly 42 are used to cool and pressurize the upper surface and the lower surface of the workpiece 100, respectively. After the workpiece 100 is heated, the upper cooling and pressurizing assembly 41 moves downward, and the lower cooling and pressurizing assembly 42 moves upward, so as to clamp and pressurize the workpiece 100, and cool the upper surface and the lower surface of the workpiece 100, so as to avoid the problem of warping and deformation of the workpiece 100.

[0039] In some embodiments, the first support 12 and the second support 13 each include a first clamping plate, a second clamping plate and a clamping driver 14. When clamping, the two ends of the workpiece 100 need to be placed between the first clamping plate and the second clamping plate, respectively, and then the clamping driver 14 can drive the first clamping plate and / or the second clamping plate to move toward each other to clamp the workpiece 100. The first clamping plate can be fixed and the second clamping plate can be moved, or the first clamping plate can be moved and the second clamping plate can be fixed, or both the first clamping plate and the second clamping plate can be moved. The spacing between the first clamping plate and the second clamping plate can be adjusted by the clamping driver 14, so as to adapt to workpieces 100 of different widths. The clamping driver 14 can be a hydraulic cylinder or a pneumatic cylinder.

[0040] In some embodiments, the workpiece support 10 also includes a support rail 11, the extension direction of the support rail 11 is parallel to the length extension direction of the workpiece 100, and the first support 12 and the second support 13 are slidably connected to the support rail 11. Through the movable characteristics of the first support 12 and the second support 13, the distance between the first support 12 and the second support 13 can be adjusted to adapt to the support operation of the workpiece 100 of different lengths. In a specific application scenario, after the distance between the first support 12 and the second support 13 is adjusted into place, the first support 12 and the second support 13 can be locked on the support rail 11 to ensure the support stability of the workpiece 100.

[0041] In some embodiments, the upper cooling and pressurizing assembly 41 includes an upper translation driving member 411, an upper water-cooled pressurizing plate 414 and at least one upper hydraulic cylinder 413. The upper water-cooled pressurizing plate 414 is connected to the bottom of each upper hydraulic cylinder 413. The upper hydraulic cylinder 413 is connected to the upper translation driving member 411. The upper hydraulic cylinder 413 can be connected to the upper translation driving member 411 through an upper mounting plate 412. The upper hydraulic cylinder 413 is used to drive the upper water-cooled pressurizing plate 414 to rise and fall. The upper translation driving member 411 is used to drive the upper hydraulic cylinder 413 to move along the length direction of the workpiece 100 to adjust the upper water-cooled pressurizing plate 414. The lower cooling and pressurizing assembly 42 includes a lower translation driving member 421, a lower water-cooling pressurizing plate 424 and at least one lower hydraulic cylinder 422. The lower water-cooling pressurizing plate 424 is connected to the upper part of each lower hydraulic cylinder 422. The lower hydraulic cylinder 422 is connected to the lower translation driving member 421. The lower hydraulic cylinder 422 can be connected to the lower translation driving member 421 through a lower mounting plate 423. The lower hydraulic cylinder 422 is used to drive the lower water-cooling pressurizing plate 424 to rise and fall. The lower translation driving member 421 is used to drive the lower hydraulic cylinder 422 to move along the length direction of the workpiece 100 to adjust the position of the lower water-cooling pressurizing plate 424. Among them, water-cooling channels are respectively provided in the upper water-cooling pressurizing plate 414 and the lower water-cooling pressurizing plate 424, and the water-cooling channels are connected to external coolant during operation.

[0042] The upper translation driving member 411 and the lower translation driving member 421 both include a rotatable driving part, a driving gear and a rack. The driving gear is connected to the rotatable driving part. The rotatable driving part can be selected as a motor. The rotatable driving part is connected to the upper mounting plate 412 or the lower mounting plate 423. When the rotatable driving part drives the driving gear to rotate, under the action of the rack, the upper mounting plate 412 or the lower mounting plate 423 can be moved along the length direction of the rack, thereby making the upper hydraulic cylinder 413 and the lower hydraulic cylinder 422 translate.

[0043] In some embodiments, the laser quenching processing equipment also includes a frame 50, which includes a bottom frame and a top frame. The top frame is arranged above the bottom frame. The bottom frame and the top frame can be optionally frame structures. For example, the top frame includes four columns and a crossbeam arranged on the top of the four columns. The bottom frame includes four columns and a support plate arranged on the top of the four columns. The support plate is provided with a guide hole for the lower water-cooled pressure plate 424 to extend out. The workpiece support 10 is arranged on the upper part of the bottom frame. For example, two support rails 11 can be arranged on the support plate. The first support 12 and the second support 13 are slidably connected to the two support rails 11. The lower cooling and pressure assembly 42 is arranged in the bottom frame, and the upper cooling and pressure assembly 41 is arranged on the top frame.

[0044] In some embodiments, a lower sliding rail 425 for the movement of the lower hydraulic cylinder 422 is provided at the bottom of the base frame, and the number of the lower sliding rails 425 can be selected to be two. The lower mounting plate 423 can be slidably connected to the lower sliding rail 425, and the translational stability of the lower hydraulic cylinder 422 can be improved through the lower sliding rail 425; an upper sliding rail 415 for the movement of the upper hydraulic cylinder 413 is provided on the top frame, and the number of the upper sliding rails 415 can be selected to be two. The upper mounting plate 412 can be slidably connected to the upper sliding rail 415, and the upper sliding rail 415 is parallel to the lower sliding rail 425. The translational stability of the upper hydraulic cylinder 413 can be improved through the upper sliding rail 415.

[0045] In some embodiments, an avoidance hole is provided on the top frame. When the top frame is a frame structure, the structure surrounded by four cross beams forms the avoidance hole. The laser quenching head 20 passes through the avoidance hole from top to bottom. The avoidance hole can facilitate the movement of the laser quenching head 20, so that the laser quenching head 20 can move along the length direction of the workpiece 100.

[0046] In some embodiments, the laser quenching processing equipment further includes a side guide rail 31 and a side translation drive unit 32. The number of the side guide rails 31 can be selected to be two. The laser quenching motion mechanism 30 is arranged on the side guide rail 31. The side translation drive unit 32 is connected to the motion mechanism of the laser quenching head 20, and is used to drive the motion mechanism of the laser quenching head 20 to move along the side guide rail 31. The side translation drive unit 32 can have the same structure as the upper translation drive unit or the lower translation drive unit. The laser quenching motion mechanism 30 is preferably a robot arm, the bottom of the robot arm is slidably connected to the side guide rail 31 through a mounting seat 33, and the laser quenching head 20 is connected to the end of the robot arm. The laser quenching head 20 can be connected to an external laser through an optical fiber to introduce the laser into the laser quenching head 20 for quenching.

[0047] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0048] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0049] The above is a detailed introduction to a laser quenching processing equipment provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A laser quenching processing equipment, characterized in that: include: A workpiece support (10), the workpiece support (10) being used to support a workpiece (100) to be quenched; A laser quenching head (20) and a laser quenching motion mechanism (30), wherein the laser quenching head (20) is connected to the laser quenching motion mechanism (30), the laser quenching motion mechanism (30) is used to adjust the position of the laser quenching head (20), and the laser quenching head (20) is used to heat the workpiece (100); A cooling and pressurizing device (40) is used to pressurize and cool the surface of the heated workpiece (100).

2. The laser quenching processing equipment according to claim 1, characterized in that: The workpiece support (10) comprises a first support (12) and a second support (13), and two ends of the workpiece (100) are respectively placed on the first support (12) and the second support (13); the cooling and pressurizing device (40) comprises an upper cooling and pressurizing component (41) and a lower cooling and pressurizing component (42), and the upper cooling and pressurizing component (41) and the lower cooling and pressurizing component (42) are used to cool and pressurize the upper surface and the lower surface of the workpiece (100), respectively.

3. The laser quenching processing equipment according to claim 2, characterized in that: The first support (12) and the second support (13) each comprise a first clamping plate, a second clamping plate and a clamping drive (14), wherein the clamping drive (14) is used to drive the first clamping plate and / or the second clamping plate to move toward each other so as to clamp the workpiece (100).

4. The laser quenching processing equipment according to claim 2, characterized in that: The workpiece support (10) further comprises a support rail (11), and the first support seat (12) and the second support seat (13) are slidably connected to the support rail (11).

5. The laser quenching processing equipment according to claim 2, characterized in that: The upper cooling and pressurizing assembly (41) comprises an upper translation driving member (411), an upper water-cooling pressurizing plate (414) and at least one upper hydraulic cylinder (413), wherein the upper water-cooling pressurizing plate (414) is connected to the bottom of each upper hydraulic cylinder (413), the upper hydraulic cylinder (413) is connected to the upper translation driving member (411), the upper hydraulic cylinder (413) is used to drive the upper water-cooling pressurizing plate (414) to rise and fall, and the upper translation driving member (411) is used to drive the upper hydraulic cylinder (413) to move along the length direction of the workpiece (100); The lower cooling and pressurizing assembly (42) comprises a lower translation drive member (421), a lower water-cooled pressurizing plate (424) and at least one lower hydraulic cylinder (422), wherein the lower water-cooled pressurizing plate (424) is connected to the upper portion of each lower hydraulic cylinder (422), and the lower hydraulic cylinder (422) is connected to the lower translation drive member (421), and the lower hydraulic cylinder (422) is used to drive the lower water-cooled pressurizing plate (424) to rise and fall, and the lower translation drive member (421) is used to drive the lower hydraulic cylinder (422) to move along the length direction of the workpiece (100).

6. The laser quenching processing equipment according to claim 5, characterized in that: The laser quenching processing equipment also includes a frame (50), the frame (50) includes a bottom frame and a top frame, the top frame is arranged above the bottom frame, the workpiece support (10) is arranged on the top of the bottom frame, the lower cooling and pressurizing assembly (42) is arranged in the bottom frame, and the upper cooling and pressurizing assembly (41) is arranged on the top frame.

7. The laser quenching processing equipment according to claim 6, characterized in that: A lower slide rail (425) for the lower hydraulic cylinder (422) to move is provided at the bottom of the bottom frame, and an upper slide rail (415) for the upper hydraulic cylinder (413) to move is provided on the top frame, wherein the upper slide rail (415) is parallel to the lower slide rail (425).

8. The laser quenching processing equipment according to claim 7, characterized in that: The top frame is provided with an avoidance hole, and the laser quenching head (20) passes through the avoidance hole from top to bottom.

9. The laser quenching processing equipment according to any one of claims 1 to 8, characterized in that: The laser quenching processing equipment further comprises a side guide rail (31) and a side translation drive unit (32); the laser quenching motion mechanism (30) is arranged on the side guide rail (31); the side translation drive unit (32) is connected to the motion mechanism of the laser quenching head (20) and is used to drive the motion mechanism of the laser quenching head (20) to move along the side guide rail (31).

10. The laser quenching processing equipment according to claim 9, characterized in that: The laser quenching motion mechanism (30) is a mechanical arm, the bottom of the mechanical arm is slidably connected to the side guide rail (31) via a mounting seat (33), and the laser quenching head (20) is connected to the end of the mechanical arm.

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