A quenching device and method for machining linear guide rails

Abstract

The present invention discloses a quenching device and method for machining a linear guide pair, belonging to the technical field of linear guide quenching treatment. The device includes a quenching tank, and also includes a mounting housing, a quenching mechanism, a sliding frame, a traveling mechanism, a flipping and positioning mechanism, a material receiving housing, and a material pushing mechanism; through the mutual cooperation of the traveling mechanism and the flipping and positioning mechanism, the sliding frame and the clamped linear guide pair can move smoothly in the quenching tank. By setting the balance flipping member, during the movement of the clamped linear guide pair along with the sliding frame, the U-shaped sliding surface of the linear guide pair undergoes reciprocating swinging treatment, that is, the linear guide pair undergoes mobile gradual heating quenching and mobile spraying cooling, fully heating and fully cooling the U-shaped sliding surface of the linear guide pair, effectively improving the consistency of the surface hardened layer of the linear guide pair, and thus significantly improving the subsequent use accuracy of the linear guide pair.

Description

Technical Field

[0001] The present invention belongs to the technical field of quenching treatment of linear guide rails, and particularly relates to a quenching device and method for processing linear guide rail pairs. Background Art

[0002] A linear guide rail pair is a mechanical component used to achieve high-precision linear motion. It consists of a linear guide rail and a slider. The linear guide rail is usually installed on the fixed part of the machine to play a role in guiding the direction; the slider is connected to the moving part and performs linear reciprocating motion along the linear guide rail. Since the slider will reciprocate frequently on the sliding surface of the linear guide rail, generating friction, in order to improve the hardness and wear resistance of the sliding surface of the linear guide rail, the sliding surface of the linear guide rail is usually quenched.

[0003] In the prior art, the method of quenching the linear guide rail is usually to generate high-frequency current through a high-frequency power supply and heat the surface of the guide rail to the quenching temperature in a very short time through electromagnetic induction technology, while the temperature change inside the guide rail is relatively small, so as to achieve the effect of surface quenching. In the actual application process of the linear guide rail, it is usually used in combination with a pair of linear guide rails and a pair of sliders. When a pair of linear guide rails is quenched, if individual quenching is carried out, the performance of the linear guide rail pair will be different after quenching treatment, resulting in a reduction in its use accuracy. In addition, since the vertical cross-section of the linear guide rail is usually in the shape of an "I", and the sliding surface of the linear guide rail is in the shape of a "C", it is difficult to control the surface hardened layer of the sliding surface of the linear guide rail through electromagnetic induction heating technology, resulting in large deformation after quenching treatment and abnormal accuracy of the linear guide rail.

[0004] Therefore, a quenching device and method for processing linear guide rail pairs are needed to solve the problem that when synchronously quenching the linear guide rail pair in the prior art, it is difficult to control the consistency of the surface hardened layer at the sliding surface of the linear guide rail, resulting in a reduction in the use accuracy of the linear guide rail pair. Summary of the Invention

[0005] The purpose of the present invention is to provide a quenching device and method for processing linear guide rail pairs to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A quenching device for processing linear guide rail pairs, including a quenching tank, and further including:

[0007] An installation housing fixed on the top surface of the quenching tank, and a quenching mechanism for quenching the linear guide rail is arranged inside the installation housing;

[0008] A sliding frame, the sliding frame is arranged on the top inner wall of the quenching box, the interior of the quenching box is provided with a travel mechanism for the sliding frame to move, and the sliding frame is provided with a flip positioning mechanism for two linear guide rails to perform clamping processing;

[0009] The material receiving cover shell is located outside the mounting cover shell and is fixed to the top surface of the quenching box. A pushing mechanism for synchronous unloading of two linear guide rails is arranged on the side of the sliding frame away from the material receiving cover shell.

[0010] It should be noted that the quenching mechanism includes:

[0011] An upper electromagnetic plate group, wherein two upper electromagnetic plate groups are provided and are respectively fixed to the top inner walls at both ends of the mounting cover, and a lower electromagnetic plate group fixed to the inner walls at both ends of the quenching box is provided below each upper electromagnetic plate group;

[0012] A cooling box is fixed to the top surface of the mounting cover, a plurality of cooling pipes equidistantly distributed are arranged on the outer sides of the upper electromagnetic plate group and the lower electromagnetic plate group, a liquid injection pipe is commonly connected between the two cooling pipes located on the same vertical plane, and a duct is commonly connected between the plurality of liquid injection pipes and the cooling box.

[0013] It is further worth noting that the travel mechanism comprises:

[0014] A threaded rod, the threaded rod is rotatably mounted on the inner walls of both sides of the quenching box, the outer surface of the threaded rod is threadedly connected with a threaded block, a guide rod is fixed to one end of the quenching box away from the threaded rod, the outer surface of the guide rod is slidably connected with a guide block, the threaded block and the guide block are both fixedly embedded in the bottom inner wall of the sliding frame, and a driving motor coaxially connected to the threaded rod is arranged on the outer side of the quenching box;

[0015] The fixed guide rails are provided with two fixed guide rails and are symmetrically fixed to the inner walls at both ends of the quenching box. The opposite back surfaces of the threaded block and the guide block are provided with sliding grooves adapted to the fixed guide rails.

[0016] It should be further explained that the flip positioning mechanism includes:

[0017] Positioning turntables, two of which are symmetrically mounted on the inner wall of the sliding frame, and a balancing flipping member is arranged between the two positioning turntables;

[0018] The splints are provided with four splints and two splints located at the same end are symmetrically mounted on the outer surface of the positioning turntable. A rotating gear is coaxially fixed on the top and bottom of each splint. A movable rack rod is meshed and connected at the outer end of each rotating gear. The ends of the four rectangular movable rack rods located at the same end slide through the positioning turntable and are jointly fixed with a limit plate. The inner wall of the limit plate slides through two symmetrically distributed limit rods, and the ends of the limit rods are fixed to the outer surface of the positioning turntable. The outer surface of the limit rod is provided with a compression spring fixed to the opposite surfaces of the limit plate and the positioning turntable.

[0019] As a preferred embodiment, the balancing flip member includes:

[0020] A balancing rack rod, the balancing rack rod is arranged through the center of the sliding frame, the outer surfaces of the two positioning turntables are provided with teeth meshing with the balancing rack rod, and the top vertical section of the balancing rack rod is arranged in a T shape;

[0021] The card slot is opened at the center of the top surface of the sliding frame and is consistent with the top cross-sectional size of the balancing rack rod. The top outer surface of the sliding frame slides through the limit pin, and the top outer surface of the balancing rack rod is provided with a plurality of equidistantly distributed sockets.

[0022] As a preferred embodiment, the balancing flip member further includes:

[0023] A walking wheel, the walking wheel is installed below the balancing rack rod, and a supporting spring fixed to the opposite surfaces of the walking wheel and the sliding frame is arranged on the outer surface of the bottom of the balancing rack rod;

[0024] The fixed deflection rod has two ends respectively fixed to the inner walls of both sides of the quenching box, and the top surface of the fixed deflection rod contacts the wheel body surface of the walking wheel.

[0025] As a preferred embodiment, the fixed deflection rod comprises a first straight section, a corrugated section and a second straight section which are connected in sequence, and an end of the corrugated section close to the second straight section is located below the mounting cover.

[0026] As a preferred embodiment, the pushing mechanism includes:

[0027] Pushing blocks, two of which are respectively slidably engaged with the inner wall of the positioning turntable, a pushing rod is fixed on the outer surface of the pushing block, the pushing rod is penetrated and arranged at the center of the limiting plate, and a tightening spring is arranged on the outer surface of the pushing rod and is fixed to the opposite surfaces of the pushing block and the limiting plate;

[0028] The electric push rod is fixed to the outer surface of the bottom of the sliding frame. A push ring is fixed to the output end of the electric push rod. The outer surface of the push ring contacts the ends of the two push rods.

[0029] As a preferred embodiment, an interference groove is formed on the outer surface of the push ring, and the ends of the two push rods are located inside the interference groove.

[0030] A quenching method for machining a linear guide pair, using a quenching device for machining a linear guide pair, comprises the following steps:

[0031] S1, flip clamping positioning:

[0032] The sliding frame is moved to one side of the quenching box by the driving of the traveling mechanism, the flip positioning mechanism is lifted for a distance and engaged, and then the two linear guide rails are inserted into the sliding frame in sequence, so that the flip positioning mechanism automatically clamps and positions the two linear guide rails, and the engagement of the flip positioning mechanism is released, so that the flip positioning mechanism is reset, and at this time, the two linear guide rails are flipped 90 degrees with the flip positioning mechanism, forming a flip clamping and positioning process of the linear guide pair;

[0033] S2, mobile quenching cooling:

[0034] The sliding frame and the linear guide pair that have been flipped and clamped in step S1 are driven by the traveling mechanism to move to the quenching mechanism, and the linear guide pair is subjected to gradual temperature quenching and spray cooling treatment in sequence by the quenching mechanism, thereby forming a mobile quenching and cooling treatment for the linear guide pair;

[0035] S3, Push material transfer:

[0036] The linear guide pair that has been moved, quenched and cooled in step S2 is continued to move forward through the traveling mechanism, so that the linear guide pair moves to the top of the material receiving cover shell. At this time, the linear guide pair is driven by the unloading mechanism to be pushed synchronously from the sliding frame until the flipping positioning mechanism releases the clamping effect on the linear guide pair, so that the linear guide pair placed on the material receiving cover shell is transferred to the next process, completing the pushing and transfer processing of the linear guide pair.

[0037] Compared with the prior art, the quenching equipment and method for linear guide rail machining provided by the present invention have at least the following beneficial effects:

[0038] (1) Through the mutual cooperation of the flipping positioning mechanism and the pushing mechanism, the two positioning turntables can be vertically flipped. The two linear guide rails are inserted into the positioning turntable after being squeezed at the clamping plate, forming the extrusion clamping positioning of the clamping plate and the moving plug-in positioning of the pushing block and the linear guide rail, resulting in a dual positioning treatment for the linear guide rail pair. This can effectively improve the clamping stability of the linear guide rail pair. And through the mobile support of the sliding frame by the balance flipping member, the stability of the linear guide rail pair on the sliding frame can be further improved.

[0039] (2) Through the mutual cooperation of the traveling mechanism and the flipping positioning mechanism, the sliding frame and the clamped linear guide rail pair can move smoothly in the quenching tank. With the setting of the balance flipping member, during the movement of the clamped linear guide rail pair along with the sliding frame, the U-shaped sliding surface of the linear guide rail pair undergoes reciprocating swinging treatment, that is, the linear guide rail pair is heated by gradual temperature rise during movement and cooled by spraying during movement, fully heating and fully cooling the U-shaped sliding surface of the linear guide rail pair, effectively improving the consistency of the surface hardened layer of the linear guide rail pair, and thus significantly improving the subsequent use accuracy of the linear guide rail pair.

[0040] (3) The setting of the pushing mechanism can not only achieve fine adjustment of the plug-in positioning of the two linear guide rails in the sliding frame, thus ensuring the clamping consistency of the two linear guide rails, but also enable convenient pushing of the linear guide rail pair after the mobile quenching is completed, thus facilitating the transfer of the linear guide rail pair. Description of the Drawings

[0041] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0042] Figure 2 It is a schematic diagram of the structure at the quenching mechanism and the traveling mechanism of the present invention;

[0043] Figure 3 For the present invention Figure 2 It is an enlarged schematic diagram of area A in the present invention;

[0044] Figure 4 It is a partial schematic diagram of the fixed deflection rod of the present invention;

[0045] Figure 5 It is a schematic diagram of the clamping plate and the compression spring of the present invention;

[0046] Figure 6 For the present invention Figure 5 It is an enlarged schematic diagram of area B in the present invention;

[0047] Figure 7 It is a partial schematic diagram of the balance rack bar of the present invention;

[0048] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure of the middle C area;

[0049] Fig. 9 It is a schematic diagram of the local structure of the pusher block of the present invention;

[0050] Fig.10 For the present invention Fig. 9 Schematic diagram of the enlarged structure of the middle D area;

[0051] Fig.11 It is a schematic diagram of the structure of the clamping plate of the present invention in a certain state.

[0052] In the figure: 1, quenching box; 2, mounting cover; 3, quenching mechanism; 31, upper electromagnetic plate group; 32, lower electromagnetic plate group; 33, cooling box; 34, cooling pipe; 35, injection pipe; 36, guide tube; 4, sliding frame; 5, travel mechanism; 51, threaded rod; 52, threaded block; 53, guide rod; 54, guide block; 55, drive motor; 56, fixed guide rail; 57, slide; 6, flip positioning mechanism; 61, positioning turntable; 62, balance flip member; 621, balance rack rod; 622, card slot; 623, limit pin; 624, socket; 625, travel wheel; 626, support spring; 627, fixed deflection rod; 6271, first straight section; 6272, corrugated section; 6273, second straight section; 63, clamping plate; 64, rotating gear; 65, moving rack rod; 66, limit plate; 67, limit rod; 68, clamping spring; 7, material receiving cover shell; 8, pushing mechanism; 81, pushing block; 82, pushing rod; 83, pressing spring; 84, electric push rod; 85, pushing ring; 9, contact groove. DETAILED DESCRIPTION

[0053] The present invention will be further described below in conjunction with the embodiments.

[0054] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present disclosure.

[0055] Unless otherwise defined, the technical or scientific terms used in the present disclosure shall have the usual meanings understood by persons with ordinary skills in the field to which the present disclosure belongs. The words "including" or "comprising" and the like used in the present disclosure mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the object being described changes, the relative position relationship may also change accordingly. Example

[0056] See also Figure 1-11 The present invention provides a quenching device for processing a linear guide rail pair, comprising a quenching box 1, and also comprising a mounting cover 2, the mounting cover 2 being fixed to the top surface of the quenching box 1, and a quenching mechanism 3 for quenching the linear guide rail is arranged inside the mounting cover 2;

[0057] It should be noted that the quenching mechanism 3 is arranged on the top of the mounting housing 2, and the sliding surface of the guide rail is heated to the quenching temperature by the quenching heating component in the quenching mechanism 3, so as to achieve the surface quenching effect of the sliding surface of the linear guide rail, and then the quenching surface of the linear guide rail is quickly cooled by the quenching cooling component in the quenching mechanism 3;

[0058] A sliding frame 4 is arranged on the top inner wall of the quenching box 1. A traveling mechanism 5 for moving the sliding frame 4 is arranged inside the quenching box 1. A flip positioning mechanism 6 for clamping two linear guide rails is arranged inside the sliding frame 4.

[0059] It should be noted that the linear guide pair is clamped quickly and efficiently by the flip positioning mechanism 6, and then the sliding frame 4 and the clamped linear guide pair are moved to the quenching mechanism 3 by the traveling mechanism 5, and the sliding surface of the linear guide pair is surface hardened and quickly cooled by the heating component and the cooling component in the quenching mechanism 3, so as to ensure that the surface hardened layer of the linear guide pair is consistent during the quenching treatment, thereby improving its subsequent use accuracy;

[0060] It should be noted that the sliding frame 4 is formed by assembling and splicing two vertical plates, which is used to facilitate the installation of the flip positioning mechanism 6 inside the sliding frame 4;

[0061] The setting of the flipping and positioning mechanism 6 can not only achieve the convenient clamping process of the two linear guide rails, but also drive the two clamped linear guide rails to swing reciprocally at the quenching mechanism 3 during the movement of the sliding carriage 4, so that the U-shaped sliding surface of the linear guide rail can be better heated and rapidly cooled, thereby improving the consistency of the surface hardened layer, and the flipping and positioning mechanism 6 can improve the stability of the sliding carriage 4 moving with the traveling mechanism 5 to a certain extent;

[0062] The material receiving cover 7 is located outside the installation cover 2 and is fixed to the top surface of the quenching tank 1. A pushing mechanism 8 for synchronously discharging the two linear guide rails is arranged on the side of the sliding carriage 4 away from the material receiving cover 7;

[0063] It should be noted that after the flipping and positioning mechanism 6 clamps the two linear guide rails inside the sliding carriage 4, through the pushing of the pushing mechanism 8, the depth of the two linear guide rails clamped into the sliding carriage 4 can be finely adjusted, so as to ensure that the clamping positions of the two linear guide rails are consistent during the clamping process, thereby improving the consistency of the surface hardened layer of the two linear guide rails during the subsequent quenching process;

[0064] In addition, after the linear guide rail pair is quenched and heated and quenched and cooled by the quenching mechanism 3, it moves the linear guide rail pair to the upper part of the material receiving cover 7 along with the traveling mechanism 5. Through the repeated pushing of the pushing mechanism 8, the linear guide rail pair can be separated from the flipping and positioning mechanism 6, thus improving the convenience of discharging and transferring the linear guide rail pair.

[0065] Furthermore, as shown in Figure 1 、 Figure 2 、 Figure 4 and Fig. 9 specifically, the quenching mechanism 3 includes an upper electromagnetic plate group 31. There are two upper electromagnetic plate groups 31, which are respectively fixed to the inner walls of the two ends of the top of the installation cover 2. A lower electromagnetic plate group 32 fixed to the inner walls of the two ends of the quenching tank 1 is arranged below each upper electromagnetic plate group 31;

[0066] The cooling tank 33 is fixed to the top surface of the installation cover 2. A plurality of cooling pipes 34 are evenly distributed on the outer sides of the upper electromagnetic plate group 31 and the lower electromagnetic plate group 32. A liquid injection pipe 35 is commonly connected between two cooling pipes 34 in the same vertical plane. A conduit 36 is connected between each of the plurality of liquid injection pipes 35 and the cooling tank 33;

[0067] It should be noted that both the upper electromagnetic plate group 31 and the lower electromagnetic plate group 32 are composed of three independent electromagnetic plates, which are respectively connected to a low-frequency power supply, an intermediate-frequency power supply, and a high-frequency power supply, and are used to provide low-frequency current, intermediate-frequency current, and high-frequency current to the three groups of electromagnetic plates distributed vertically. In addition, with the assistance of the temperature feedback system, the control system gradually increases the magnitude of the current input to the electromagnetic plates during the electromagnetic induction quenching process, so as to gradually increase the temperature of the guide rail and realize the quenching process of gradually heating the linear guide pair, which helps to improve the quenching quality of the linear guide pair;

[0068] The cooling liquid in the cooling tank 33 is sent into the liquid injection pipe 35 through the conduit 36 by means of an external liquid injection device, and is sent into the cooling pipes 34 distributed vertically through the liquid injection pipe 35, so as to realize the spray cooling treatment of the U-shaped sliding surface of the linear guide;

[0069] It should be noted that the power supply, controller, and liquid injection device connected to the upper electromagnetic plate group 31 and the lower electromagnetic plate group 32 are not shown in the figure, which are conventional settings in the art and have been fully disclosed, so they will not be repeated here;

[0070] Spray cooling is to spray the cooling liquid onto the surface of the linear guide with a certain pressure and flow rate through a nozzle. Its main principle is to use the latent heat of vaporization of the cooling liquid to带走 the heat generated by the linear guide during operation. The advantage of this method is that the cooling speed is relatively fast, and the cooling liquid can directly contact the heating part of the linear guide, and key cooling of a specific area (i.e., the U-shaped sliding surface of the linear guide) can be realized, thereby提高 the cooling speed of the hardened layer on the surface of the linear guide pair.

[0071] Further, as shown in Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 and Figure 8 shown, specifically, the traveling mechanism 5 includes a threaded rod 51, the threaded rod 51 is rotatably installed on both inner walls of the quenching tank 1, a threaded block 52 is threadedly connected to the outer surface of the threaded rod 51, a guide rod 53 is fixed at one end of the quenching tank 1 away from the threaded rod 51, a guide block 54 is slidably connected to the outer surface of the guide rod 53, both the threaded block 52 and the guide block 54 are fixedly embedded in the bottom inner wall of the sliding frame 4, and a drive motor 55 coaxially connected to the threaded rod 51 is arranged outside the quenching tank 1;

[0072] Fixed guide rails 56, there are two fixed guide rails 56 and they are symmetrically fixed on both inner walls of the quenching tank 1, and sliding grooves 57 adapted to the fixed guide rails 56 are opened on the opposite surfaces of the threaded block 52 and the guide block 54;

[0073] It should be noted that the threaded rod 51 can be threadedly rotated by driving the driving motor 55, and the threaded transmission between the threaded block 52 and the threaded block 52 and the guiding effect of the guide rod 53 on the guide block 54 can make the sliding frame 4 move forward at a uniform speed in the quenching box 1 driven by the driving motor 55. The setting of the fixed guide rail 56 and the slide groove 57 can further guide and limit the threaded block 52 and the guide block 54 respectively, thereby further improving the stability of the sliding frame 4 and the clamped linear guide pair in the quenching box 1.

[0074] Further as Figure 1-Figure 8 As shown, it is worth to explain in detail that the flip positioning mechanism 6 includes a positioning turntable 61, two positioning turntables 61 are provided and are symmetrically rotated and installed on the inner wall of the sliding frame 4, and a balance flip member 62 is provided between the two positioning turntables 61;

[0075] The clamping plate 63 is provided with four clamping plates 63, and two clamping plates 63 located at the same end are symmetrically mounted on the outer surface of the positioning turntable 61. The top and bottom of each clamping plate 63 are coaxially fixed with a rotating gear 64. The outer end of each rotating gear 64 is meshed and connected with a moving rack rod 65. The ends of the four rectangular moving rack rods 65 located at the same end slide through the positioning turntable 61 and are commonly fixed with a limiting plate 66. The inner wall of the limiting plate 66 slides through two symmetrically distributed limiting rods 67. The ends of the limiting rods 67 are fixed to the outer surface of the positioning turntable 61. The outer surface of the limiting rod 67 is provided with a compression spring 68 fixed to the opposite surfaces of the limiting plate 66 and the positioning turntable 61.

[0076] It should be noted that when the linear guide rail is not clamped, the limit plate 66 is away from the outer surface of the positioning turntable 61 by the elastic force of the compression spring 68, and the teeth of the four moving rack rods 65 gradually approach the outer surface of the positioning turntable 61. The meshing transmission of the moving rack rods 65 and the rotating gear 64 causes the four rotating gears 64 and the clamping plates 63 connected thereto to rotate, that is, the ends of the two clamping plates 63 close to the positioning turntable 61 are rotated close to each other, and the ends away from the positioning turntable 61 are in an unfolded state;

[0077] The arrangement of the balancing flip member 62 can drive the two positioning turntables 61 to rotate synchronously until the two positioning turntables 61 flip 90 degrees. At this time, the two clamping plates 63 on the positioning turntables 61 are as shown in FIG. Fig.11As shown, the outer end is in an expanded state. At this time, the linear guide is inserted from the expanded state of the clamping plate 63 until the linear guide squeezes the two clamping plates 63 and inserts the linear guide into the positioning turntable 61. At this time, the clamping plate 63 drives the rotating gear 64 to rotate synchronously. Through the meshing transmission of the rotating gear 64 and the transmission gear, the four transmission rack rods drive the limit plate 66 to move toward the positioning turntable 61, that is, drive the clamping spring 68 to be compressed. Through the elastic force of the clamping spring 68, the two clamping plates 63 clamp the non-sliding surface of the linear guide, and cooperate with the plug-in positioning effect of the linear guide in the positioning turntable 61 to further improve the clamping stability of the linear guide.

[0078] After the linear guide pair is clamped, the balancing flip member 62 is reset and stably located inside the quenching box 1. When the traveling mechanism 5 drives the sliding frame 4 and the linear guide pair to move to the quenching mechanism 3, the balancing flip member 62 also improves the movement stability of the sliding frame 4 to a certain extent.

[0079] Further as Figure 1 , Figure 3 , Figure 7 , Fig. 9 and Fig.10 As shown, it is worth to explain in detail that the balancing flip member 62 includes a balancing rack rod 621, which is arranged through the center of the sliding frame 4, and the outer surfaces of the two positioning turntables 61 are provided with teeth meshing with the balancing rack rod 621, and the top vertical section of the balancing rack rod 621 is arranged in a T shape;

[0080] The card slot 622 is provided at the center of the top surface of the sliding frame 4 and has the same size as the top cross-section of the balancing rack rod 621. The top outer surface of the sliding frame 4 slides through the limit pin 623. The top outer surface of the balancing rack rod 621 is provided with a plurality of equally spaced insertion holes 624;

[0081] A travel wheel 625, the travel wheel 625 is installed below the balancing rack rod 621, and a support spring 626 is provided on the bottom outer surface of the balancing rack rod 621 and is fixed to the opposite surfaces of the travel wheel 625 and the sliding frame 4;

[0082] A fixed deflection rod 627, the two ends of which are respectively fixed to the inner walls of the quenching box 1, and the top surface of the fixed deflection rod 627 is in contact with the wheel body surface of the walking wheel 625;

[0083] The fixed deflection rod 627 includes a first straight section 6271, a corrugated section 6272 and a second straight section 6273 connected in sequence, and the end of the corrugated section 6272 close to the second straight section 6273 is located below the mounting housing 2;

[0084] It should be noted that by lifting the T-shaped position of the balance rack bar 621 upward, the balance rack bar 621 can move upward within the sliding frame 4, synchronously driving the traveling wheels 625 to move upward and compressing the support spring 626. At this time, through the meshing transmission between the balance rack bar 621 and the teeth on the two positioning turntables 61, the two positioning turntables 61 rotate synchronously until the two positioning turntables 61 rotate vertically. At this time, the limit pin 623 is inserted into the jack 624 on the balance rack bar 621, so that the two linear guide rails can respectively press the clamping plate 63 and be inserted into the positioning turntable 61 for insertion and positioning installation. After the installation is completed, the limit pin 623 is taken out. Subsequently, by pressing down the balance rack bar 621 and the elastic force of the support spring 626, the two positioning turntables 61 are synchronously vertically flipped until the wheel body of the traveling wheel 625 contacts the first straight section 6271. Thus, through the connection between the traveling wheel 625 and the balance rack bar 621, the support stability of the sliding frame 4 is further improved;

[0085] When the sliding frame 4 moves synchronously with the drive of the drive motor 55, at this time, the traveling wheels 625 move on the fixed deflection rod 627. Due to the elastic force of the support spring 626 acting in a pressing manner, when the traveling wheels 625 move to the corrugated section 6272 of the fixed deflection rod 627, at this time, the balance rack bar 621 reciprocates up and down on the sliding frame 4. Through the meshing transmission between the balance rack bar 621 and the teeth on the two positioning turntables 61, the two positioning turntables 61 are synchronously reciprocally deflected, that is, the U-shaped sliding surface of the linear guide rail pair performs reciprocating deflection quenching heating and quenching cooling treatments at the quenching mechanism 3, thereby improving the consistency of the surface hardened layer of the two linear guide rails during the quenching treatment at the quenching mechanism 3 and greatly improving the subsequent use accuracy of the linear guide rail pair. Embodiment

[0086] Based on Embodiment 1, according to Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 and Fig. 9 shown, specifically, the pusher mechanism 8 includes pusher blocks 81. There are two pusher blocks 81, which are respectively slidably engaged with the inner wall of the positioning turntable 61. A pusher rod 82 is fixed on the outer surface of the pusher block 81. The pusher rod 82 penetrates through the center of the limit plate 66. A pressing spring 83 fixed to both the opposite surfaces of the pusher block 81 and the limit plate 66 is arranged on the outer surface of the pusher rod 82;

[0087] An electric push rod 84, the electric push rod 84 is fixed on the outer surface of the bottom of the sliding frame 4. The output end of the electric push rod 84 is fixed with a pusher ring 85. The outer surface of the pusher ring 85 contacts the ends of the two pusher rods 82;

[0088] The outer surface of the push ring 85 is provided with a resistance groove 9, and the ends of the two push rods 82 are located inside the resistance groove 9;

[0089] It should be noted that the pusher block 81 is elastically connected to the limit plate 66 through the connection effect of the clamping spring 83. When the linear guide rail and the clamping plate 63 are squeezed and inserted into the interior of the positioning turntable 61, the limit plate 66 also synchronously drives the pusher block 81 to move toward the linear guide rail inside the positioning turntable 61. When the non-sliding surface of the linear guide rail is clamped with the two clamping plates 63, the pusher block 81 is also in contact with the end of the linear guide rail, thereby forming an elastic docking process of the linear guide rail, which improves the consistency of the insertion depth of the two linear guide rails in the two positioning turntables 61 to a certain extent.

[0090] It should be noted that when the linear guide is inserted into the positioning turntable 61 through the squeezing clamp 63 and contacts the push block 81, the electric push rod 84 drives the push rod 82 and the push block 81 to move toward the installation direction of the cover 2. At this time, the two push blocks 81 are further tightly fitted with the ends of the linear guides, thereby further ensuring the consistency of the insertion and positioning of the two linear guides in the positioning turntable 61 and the clamping of the clamp 63, providing a guarantee for the consistency of the subsequent synchronous mobile quenching heating and mobile quenching cooling of the two linear guides.

[0091] A quenching method for machining a linear guide pair, using a quenching device for machining a linear guide pair, comprises the following steps:

[0092] S1, flip clamping positioning:

[0093] By driving the traveling mechanism 5, the sliding frame 4 is moved to one side of the quenching box 1, the flip positioning mechanism 6 is lifted for a distance and engaged, and then the two linear guide rails are inserted into the sliding frame 4 in sequence, so that the flip positioning mechanism 6 automatically clamps and positions the two linear guide rails, and the engagement of the flip positioning mechanism 6 is released, so that the flip positioning mechanism 6 is reset. At this time, the two linear guide rails are flipped 90 degrees with the flip positioning mechanism 6, forming a flip clamping and positioning process of the linear guide pair;

[0094] It should be noted that when quenching the linear guide pair, first, driven by the driving motor 55, the sliding carriage 4 is moved to the edge of the quenching tank 1. Subsequently, by lifting the balance rack bar 621 upward, the traveling wheel 625 is driven to separate at the first straight section 6271 of the fixed deflection bar 627, and the support spring 626 is driven to be compressed until the two positioning turntables 61 are vertically flipped through the meshing and driving action of their teeth with the balance rack bar 621. At this time, a plug pin is inserted for positioning and limiting, thereby completing the plugging and limiting process of the two positioning turntables 61 on the sliding carriage 4. Subsequently, the two linear guides are respectively pressed against the two clamping plates 63 until the end of the linear guide is inserted into the interior of the positioning turntable 61. At this time, the clamping plate 63 drives the connected rotating gear 64 to rotate. At this time, through the meshing and driving action of the rotating gear 64 and the moving rack bar 65, the four moving rack bars 65 drive the limiting plate 66 to move towards the positioning turntable 61, and at the same time, the pressing spring 68 is compressed. Through the elastic force of the pressing spring 68, the two clamping plates 63 clamp the non-sliding surface of the linear guide, and in cooperation with the plugging and positioning action of the linear guide and the positioning turntable 61, the positioning stability of the two linear guides is effectively improved. By releasing the plugging and limiting action of the limit pin 623 on the balance rack bar 621, at this time, through the elastic reset action of pressing the balance rack bar 621 and the support spring 626, the two positioning turntables 61 are vertically flipped and reset, that is, the two U-shaped sliding surfaces of the two linear guides are respectively distributed upward and downward. At this time, the traveling wheel 625 abuts against the first straight section 6271 of the fixed deflection bar 627 through the elastic force of the support spring 626, thereby forming a sliding support for the sliding carriage 4. At this time, the flipping and positioning process of the linear guide pair is completed;

[0095] S2. Moving quenching and cooling:

[0096] The traveling mechanism 5 drives the sliding carriage 4 and the linear guide pair completed by the flipping and clamping in step S1 to move to the quenching mechanism 3, and the quenching mechanism 3 sequentially performs gradually heating quenching and spray cooling on the linear guide pair, thereby forming a moving quenching and cooling treatment for the linear guide pair;

[0097] It should be noted that the driving motor 55 drives the threaded rod 51 to rotate in a threaded manner. Through the threaded transmission of the threaded rod 51 and the threaded block 52 and the sliding guiding action of the guiding rod 53 on the guiding block 54, at this time, the sliding frame 4 drives the clamped linear guide pair to move synchronously in the quenching tank 1 until the end of the linear guide pair moves below the mounting housing 2. At this time, the upper electromagnetic plate group 31 and the lower electromagnetic plate group 32 gradually heat the linear guide pair, thereby completing the gradually heating quenching treatment of the linear guide pair. At the same time, the traveling wheel 625 moves to the corrugated section 6272 of the fixed deflection rod 627 through the movement of the sliding frame 4. At this time, through the elastic force of the support spring 626, the balance rack bar 621 reciprocates up and down in the sliding frame 4. Through its meshing transmission with the tooth surface of the positioning turntable 61, the two positioning turntables 61 are synchronously reciprocally deflected, that is, driving the U-shaped sliding surface of the linear guide pair to perform reciprocating swing quenching heating treatment, so that the U-shaped sliding surface of the linear guide pair is more fully quenched and heated, effectively improving the consistency of the surface hardened layer at the U-shaped sliding surface of the linear guide pair. Subsequently, the linear guide pair continues to be in contact with the corrugated section 6272 through the traveling wheel 625. The coolant injected from the cooling pipe 34 can directly contact the U-shaped sliding surface of the linear guide, so that the key cooling of the U-shaped sliding surface of the linear guide can be realized, thereby increasing the cooling speed of the surface hardened layer of the linear guide pair and completing the moving quenching and cooling treatment of the linear guide pair;

[0098] S3. Pushing and transferring:

[0099] The linear guide pair that has completed the moving quenching and cooling in step S2 is further moved forward by the traveling mechanism 5, so that the linear guide pair moves to the top of the receiving housing 7. At this time, the unloading mechanism drives the linear guide pair to be pushed out of the sliding frame 4 synchronously until the flipping and positioning mechanism 6 releases the clamping action on the linear guide pair, so that the linear guide pair placed on the receiving housing 7 is transferred to the next process, completing the pushing and transferring treatment of the linear guide pair;

[0100] It should be noted that the driving motor 55 drives the sliding frame 4 to move again. At this time, the traveling wheel 625 moves to the second straight section 6273, and the sliding frame 4 and the quenched linear guide pair move above the receiving cover 7. At this time, the electric push rod 84 drives the pushing rod 82 to drive. Since the clamping plate 63 clamps the non-sliding surface of the linear guide pair, the limiting plate 66 will not move with the movement of the pushing block 81. At this time, the pushing block 81 is in contact with the linear guide, so as to push it out of the positioning turntable 61 until the clamping plate 63 releases the clamping of the linear guide. At this time, the limiting plate 66 moves towards the positioning turntable 61 with the movement of the pushing block 81 and the elastic force of the compression spring 68, and then transfers the linear guide pushed above the receiving cover 7 to complete the pushing and transferring process of the linear guide pair.

[0101] In summary, combining the two embodiments, it can be seen that through the mutual cooperation of the flipping and positioning mechanism 6 and the pushing mechanism 8, the two positioning turntables 61 can be vertically flipped. The two linear guides are squeezed until inserted into the positioning turntable 61 through the clamping plate 63, forming the extrusion clamping and positioning of the clamping plate 63 and the moving plug-in positioning of the pushing block 81 and the linear guide, forming a dual positioning treatment for the linear guide pair, which can effectively improve the clamping stability of the linear guide pair. And through the mobile support of the balance flipping member 62 for the sliding frame 4, the stability of the linear guide pair on the sliding frame 4 can be further improved.

[0102] Through the mutual cooperation of the traveling mechanism 5 and the flipping and positioning mechanism 6, the sliding frame 4 and the clamped linear guide pair can move smoothly in the quenching tank 1. Through the setting of the balance flipping member 62, during the movement of the clamped linear guide pair along with the sliding frame 4, the U-shaped sliding surface of the linear guide pair performs a reciprocating swinging process, that is, the linear guide pair is heated by mobile gradual heating quenching and cooled by mobile spraying, fully heating and fully cooling the U-shaped sliding surface of the linear guide pair, effectively improving the consistency of the surface hardened layer of the linear guide pair, and thus significantly improving the subsequent use accuracy of the linear guide pair.

[0103] The setting of the pushing mechanism 8 can not only realize the fine adjustment of the plug-in positioning of the two linear guides in the sliding frame 4, so as to ensure the clamping consistency of the two linear guides, but also enable the linear guide pair to be conveniently pushed after the mobile quenching is completed, thus providing convenience for the transfer of the linear guide pair.

[0104] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art. The general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A quenching device for machining a linear guide rail pair, comprising a quenching box, characterized in that: Also includes: An installation cover is fixed to the top surface of the quenching box, and a quenching mechanism for quenching the linear guide is arranged inside the installation cover; A sliding frame, the sliding frame is arranged on the top inner wall of the quenching box, the interior of the quenching box is provided with a travel mechanism for the sliding frame to move, and the sliding frame is provided with a flip positioning mechanism for two linear guide rails to perform clamping processing; A receiving cover shell, the receiving cover shell is located outside the mounting cover shell and is fixed to the top surface of the quenching box, and a pusher mechanism for synchronous unloading of two linear guide rails is provided on the side of the sliding frame away from the receiving cover shell; The flip positioning mechanism comprises: Positioning turntables, two of which are symmetrically mounted on the inner wall of the sliding frame, and a balancing flipping member is arranged between the two positioning turntables; The splints are provided with four splints and two splints located at the same end are symmetrically mounted on the outer surface of the positioning turntable. A rotating gear is coaxially fixed on the top and bottom of each splint. A movable rack rod is meshed and connected at the outer end of each rotating gear. The ends of the four rectangular movable rack rods located at the same end slide through the positioning turntable and are jointly fixed with a limit plate. The inner wall of the limit plate slides through two symmetrically distributed limit rods, and the ends of the limit rods are fixed to the outer surface of the positioning turntable. The outer surface of the limit rod is provided with a compression spring fixed to the opposite surfaces of the limit plate and the positioning turntable.

2. A quenching equipment for machining a linear guide rail pair according to claim 1, characterized in that: The quenching mechanism comprises: An upper electromagnetic plate group, wherein two upper electromagnetic plate groups are provided and are respectively fixed to the top inner walls at both ends of the mounting cover, and a lower electromagnetic plate group fixed to the inner walls at both ends of the quenching box is provided below each upper electromagnetic plate group; A cooling box is fixed to the top surface of the mounting cover, a plurality of cooling pipes equidistantly distributed are arranged on the outer sides of the upper electromagnetic plate group and the lower electromagnetic plate group, a liquid injection pipe is commonly connected between the two cooling pipes located on the same vertical plane, and a duct is commonly connected between the plurality of liquid injection pipes and the cooling box.

3. The quenching equipment for machining a linear guide rail pair according to claim 1, characterized in that: The traveling mechanism comprises: A threaded rod, the threaded rod is rotatably mounted on the inner walls of both sides of the quenching box, the outer surface of the threaded rod is threadedly connected with a threaded block, a guide rod is fixed to one end of the quenching box away from the threaded rod, the outer surface of the guide rod is slidably connected with a guide block, the threaded block and the guide block are both fixedly embedded in the bottom inner wall of the sliding frame, and a driving motor coaxially connected to the threaded rod is arranged on the outer side of the quenching box; The fixed guide rails are provided with two fixed guide rails and are symmetrically fixed to the inner walls at both ends of the quenching box. The opposite back surfaces of the threaded block and the guide block are provided with sliding grooves adapted to the fixed guide rails.

4. The quenching equipment for machining a linear guide rail pair according to claim 1, characterized in that: The balancing flip member comprises: A balancing rack rod, the balancing rack rod is arranged through the center of the sliding frame, the outer surfaces of the two positioning turntables are provided with teeth meshing with the balancing rack rod, and the top vertical section of the balancing rack rod is arranged in a T shape; The card slot is opened at the center of the top surface of the sliding frame and is consistent with the top cross-sectional size of the balancing rack rod. The top outer surface of the sliding frame slides through the limit pin, and the top outer surface of the balancing rack rod is provided with a plurality of equidistantly distributed sockets.

5. The quenching equipment for machining a linear guide rail pair according to claim 1, characterized in that: The balancing flip member also includes: A walking wheel, the walking wheel is installed below the balancing rack rod, and a supporting spring fixed to the opposite surfaces of the walking wheel and the sliding frame is arranged on the outer surface of the bottom of the balancing rack rod; The fixed deflection rod has two ends respectively fixed to the inner walls of both sides of the quenching box, and the top surface of the fixed deflection rod contacts the wheel body surface of the walking wheel.

6. A quenching equipment for machining a linear guide rail pair according to claim 5, characterized in that: The fixed deflection rod comprises a first straight section, a corrugated section and a second straight section which are connected in sequence, and an end of the corrugated section close to the second straight section is located below the mounting cover.

7. The quenching equipment for machining a linear guide rail pair according to claim 1, characterized in that: The pushing mechanism comprises: Pushing blocks, two of which are respectively slidably engaged with the inner wall of the positioning turntable, a pushing rod is fixed on the outer surface of the pushing block, the pushing rod is penetrated and arranged at the center of the limiting plate, and a tightening spring is arranged on the outer surface of the pushing rod and is fixed to the opposite surfaces of the pushing block and the limiting plate; The electric push rod is fixed to the outer surface of the bottom of the sliding frame. A push ring is fixed to the output end of the electric push rod. The outer surface of the push ring contacts the ends of the two push rods.

8. The quenching equipment for machining a linear guide rail pair according to claim 7, characterized in that: The outer surface of the push ring is provided with a resistance groove, and the ends of the two push rods are located inside the resistance groove.

9. A quenching method for machining a linear guide pair, using the quenching equipment for machining a linear guide pair according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1, flip clamping positioning: The sliding frame is moved to one side of the quenching box by the driving of the traveling mechanism, the flip positioning mechanism is lifted for a distance and engaged, and then the two linear guide rails are inserted into the sliding frame in sequence, so that the flip positioning mechanism automatically clamps and positions the two linear guide rails, and the engagement of the flip positioning mechanism is released, so that the flip positioning mechanism is reset, and at this time, the two linear guide rails are flipped 90 degrees with the flip positioning mechanism, forming a flip clamping and positioning process of the linear guide pair; S2, mobile quenching cooling: The sliding frame and the linear guide pair that have been flipped and clamped in step S1 are driven by the traveling mechanism to move to the quenching mechanism, and the linear guide pair is subjected to gradual temperature quenching and spray cooling treatment in sequence by the quenching mechanism, thereby forming a mobile quenching and cooling treatment for the linear guide pair; S3, Push material transfer: The linear guide pair that has been moved, quenched and cooled in step S2 is continued to move forward through the traveling mechanism, so that the linear guide pair moves to the top of the material receiving cover shell. At this time, the linear guide pair is driven by the unloading mechanism to be pushed synchronously from the sliding frame until the flipping positioning mechanism releases the clamping effect on the linear guide pair, so that the linear guide pair placed on the material receiving cover shell is transferred to the next process, completing the pushing and transfer processing of the linear guide pair.

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