Cylindrical part heat treatment tool

Abstract

The utility model provides a heat treatment tool for cylindrical parts, and belongs to the technical field of heat treatment tools. The heat treatment tool for the cylindrical parts comprises a tray, a first limiting groove and a limiting long rod; the first limiting groove is formed in the inner wall of the supporting frame so that the limiting long rod can be limited; the two ends of the long limiting rod are embedded into the two first limiting grooves with the opposite openings in the supporting frame correspondingly so that the long limiting rod can be installed on the tray, when parts are placed on the supporting plate, the parts are limited through the long limiting rod, the stability of the cylindrical parts placed on the tray can be improved, the parts are prevented from rolling when the tray is lifted, and the service life of the cylindrical parts is prolonged. And meanwhile, the cylindrical parts are prevented from falling into an oil quenching tank or a water tank in the tray lifting process, and the heat treatment efficiency of the parts is guaranteed.

Description

Technical Field

[0001] The present application belongs to the technical field of heat treatment tooling, and specifically relates to a heat treatment tooling for cylindrical parts. Background Art

[0002] When heat treating parts, the tooling pallets used are mainly flat pallets. During the heat treatment process, it is generally necessary to stack several pallets to improve the utilization efficiency of the heat treatment equipment; however, the stability of the heat treatment tooling for cylindrical parts is poor after stacking, and under the high temperature conditions of the heat treatment equipment, the reused pallets are prone to deformation, resulting in uneven heating of the parts, affecting the heat treatment effect of the parts.

[0003] To solve the above problems, a patent application with publication number CN215628156U discloses a heat treatment pallet tooling, wherein a positioning connector is provided on the pallet body, and multiple pallet bodies are connected to each other through the positioning connector so that the multiple pallet bodies can be stacked together, and the positioning connector is a hollow cylinder, and a sink groove is provided at the first end of the positioning connector, and the outer diameter of the second end is smaller than the inner diameter of the sink groove; although the deformation of the pallet can be reduced and the service life of the heat treatment pallet tooling can be extended by alternating the front and back of the pallet, there is still a poor limiting effect on the parts, which causes parts with a cylindrical appearance to roll easily during the pallet lifting process, affecting the final heat treatment effect of the parts. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art or related technology.

[0005] To this end, the utility model provides a heat treatment tool for cylindrical parts.

[0006] In view of this, according to an embodiment of the present application, a heat treatment tool for cylindrical parts is proposed, including: a tray, a first limit groove and a limit long rod; the tray includes a support plate and a support frame, the tray is embedded in the support frame, and the tray is fixedly connected to the support frame; the first limit groove is arranged on the inner wall of the support frame along the circumference of the support frame, and the first limit groove extends along the height direction of the support frame; the limit long rod is arranged parallel to the tray, and the two ends of the limit long rod are detachably set in two opposite first limit grooves to limit the parts by the limit long rod.

[0007] In a feasible implementation manner, a cushion block is provided between the limiting long rod and the component, and the cushion block is used to fill the gap between the limiting long rod and the component.

[0008] In a feasible implementation, a second limiting groove is provided on the limiting long rod. The second limiting groove is provided on the limiting long rod along the circumference of the limiting long rod. The second limiting groove is recessed toward the axial direction of the limiting long rod. The second limiting groove is used to accommodate a cushion block.

[0009] In a feasible implementation manner, the diameter of the end of the limiting long rod is equal to the width of the first limiting groove.

[0010] In a feasible implementation manner, at least two pallets are stacked to form a pallet assembly; wherein the first pallet is plug-connected to the second pallet.

[0011] In a feasible implementation, the support frame includes:

[0012] An outer frame, wherein a first tray hole is arranged on the outer frame, and the outer frame is fixedly connected to the tray along the circumference of the tray;

[0013] Support rods, four support rods are arranged at the four corners of the outer frame, the first ends of the support rods are provided with positioning protrusions, and the second ends of the support rods are provided with positioning grooves. When two trays are stacked, the positioning protrusions of the support rods on the first tray are embedded in the positioning grooves of the corresponding support rods on the second tray, so as to position the first tray and the second tray;

[0014] The diversion channel penetrates the support rod along the length direction of the support rod.

[0015] In a feasible implementation manner, the cylindrical parts heat treatment tooling further includes: lifting ears; the lifting ears are symmetrically arranged on the outer frame.

[0016] In a feasible embodiment, a second pallet hole is provided on the support plate, a limiting sleeve is detachably provided in the second pallet hole, fastening parts are clamped in the limiting sleeve, a boss is provided on the limiting sleeve, and the boss is clamped with the pallet to support the fastening parts.

[0017] In a feasible implementation manner, the sleeve-like parts are placed on a supporting plate, and the sleeve-like parts are located between two adjacent parallel limiting long rods, so that the sleeve-like parts are limited by the two limiting long rods.

[0018] In a feasible implementation, the fastening parts are placed on the first pallet, and the sleeve parts are placed on the second pallet. The fastening parts and the sleeve parts are respectively located at opposite second pallet holes on the two pallets, and at least part of the fastening parts extends into the sleeve parts.

[0019] Compared with the prior art, the heat treatment tooling for cylindrical parts of the present application has the following beneficial effects:

[0020] The cylindrical parts heat treatment tooling provided in the embodiment of the present application includes a pallet, a first limiting groove and a limiting long rod; the first limiting groove is set on the inner wall of the support frame to limit the limiting long rod; the limiting long rod is installed on the pallet by respectively embedding the two ends of the limiting long rod into two first limiting grooves with opposite openings on the support frame. When the parts are placed on the pallet, the parts are limited by the limiting long rod, which can improve the stability of the cylindrical parts placed on the pallet, prevent the parts from rolling when the pallet is lifted, ensure the quality and effect of the heat treatment of the parts, and at the same time prevent the cylindrical parts from falling into the quenching oil tank or water tank during the lifting process of the pallet, thereby ensuring the heat treatment efficiency of the parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0022] Figure 1 A schematic structural diagram of a cylindrical parts heat treatment tooling from a first angle according to an embodiment of the present application;

[0023] Figure 2 A schematic structural diagram of a cylindrical parts heat treatment tooling according to an embodiment of the present application from a second angle;

[0024] Figure 3 A schematic structural diagram of a cylindrical part heat treatment tooling after placing parts in an embodiment provided by the present application;

[0025] Figure 4 A schematic structural diagram of a second limiting groove of a cylindrical part heat treatment tooling according to an embodiment of the present application;

[0026] Figure 5 A schematic structural diagram of two stacked trays of a cylindrical parts heat treatment tooling according to an embodiment of the present application;

[0027] Figure 6 A schematic structural diagram of a cylindrical parts heat treatment tooling according to an embodiment of the present application after fastening parts and sleeve parts are placed;

[0028] in, Figures 1 to 6 The corresponding relationship between the reference numerals and component names in the figure is:

[0029] 1. Pallet; 2. First limiting groove; 3. Limiting long rod; 4. Cushion block; 5. Second limiting groove; 6. Lifting ear; 7. Second pallet hole; 8. Limiting sleeve; 9. Boss;

[0030] 11. pallet; 12. support frame; 1a. first pallet; 1b. second pallet;

[0031] 121, outer frame; 122, first tray hole; 123, support rod; 124, positioning protrusion; 125, positioning groove; 126, guide channel;

[0032] 10. Fastening parts; 20. Set parts. DETAILED DESCRIPTION

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0034] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0035] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0036] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application and are not used to limit the present application.

[0037] like Figures 1 to 3As shown, according to an embodiment of the present application, a heat treatment tool for cylindrical parts is proposed, including: a tray 1, a first limiting groove 2 and a limiting long rod 3; the tray 1 includes a support plate 11 and a support frame 12, the tray 11 is embedded in the support frame 12, and the tray 11 is fixedly connected to the support frame 12; the first limiting groove 2 is arranged on the inner wall of the support frame 12 along the circumference of the support frame 12, and the first limiting groove 2 extends along the height direction of the support frame 12; the limiting long rod 3 is arranged parallel to the tray 1, and the two ends of the limiting long rod 3 are detachably arranged in two opposite first limiting grooves 2 to limit the parts by the limiting long rod 3.

[0038] The cylindrical parts heat treatment tooling provided in the embodiment of the present application includes a pallet 1, a first limiting groove 2 and a limiting long rod 3; the first limiting groove 2 is set on the inner wall of the support frame 12 to limit the limiting long rod 3; the two ends of the limiting long rod 3 are respectively embedded in the two opposite openings of the supporting frame 12 to install the limiting long rod 3 on the pallet 1. When the parts are placed on the support plate 11, the parts are limited by the limiting long rod 3, which can improve the stability of the cylindrical parts placed on the pallet 1, prevent the parts from rolling when the pallet 1 is lifted, ensure the quality and effect of the heat treatment of the parts, and at the same time prevent the cylindrical parts from falling into the quenching oil tank or water tank during the lifting process of the pallet 1, thereby ensuring the heat treatment efficiency of the parts.

[0039] It is understandable that the cylindrical parts are placed vertically on the pallet 1 , and the limiting long rods 3 are respectively provided on both sides of the parts so that the parts can be clamped and fixed by the two limiting long rods 3 to improve the stability of the parts placed on the pallet 1 .

[0040] As a preferred solution, the limiting long rod 3 is placed parallel to the width direction of the supporting frame 12 to minimize the length of the limiting long rod 3, thereby reducing the tendency of the limiting long rod 3 to be deformed due to the squeezing force of the parts, avoiding a large gap between the limiting long rod 3 and the parts, thereby ensuring the limiting effect of the limiting long rod 3 on the parts.

[0041] Specifically, the tray 1 and the limiting long rod 3 are made of heat-resistant steel or ordinary carbon steel.

[0042] like Figure 6 As shown, in a feasible implementation manner, a cushion block 4 is provided between the limiting long rod 3 and the component, and the cushion block 4 is used to fill the gap between the limiting long rod 3 and the component.

[0043] In this technical solution, a pad 4 is provided between the limiting long rod 3 and the part to reduce the gap between the limiting long rod 3 and the side wall of the part, thereby improving the stability of the limiting long rod 3 in limiting the part; by adjusting the number of pads 4 between the limiting long rod 3 and the part, smaller cylindrical parts can be limited, thereby expanding the scope of application of the tooling and improving practicality.

[0044] As a preferred solution, inclined surfaces of different lengths and angles can be cut on the cushion block 4 to adapt to the gap between the parts and the limiting long rod 3, so as to effectively limit the cylindrical parts of different specifications.

[0045] Specifically, the spacer block 4 is a short rod or a spacer.

[0046] like Figure 4 As shown, in a feasible embodiment, a second limiting groove 5 is provided on the limiting long rod 3, and the second limiting groove 5 is provided on the limiting long rod 3 along the circumference of the limiting long rod 3, and the second limiting groove 5 is recessed toward the axial direction of the limiting long rod 3, and the second limiting groove 5 is used to accommodate the cushion block 4.

[0047] In this technical solution, a second limiting groove 5 for accommodating the cushion block 4 is provided on the limiting long rod 3 to prevent the cushion block 4 from being displaced under the action of the extrusion force, thereby improving the stability of the cushion block 4 and ensuring the stability of the part after being squeezed by the cushion block 4; the second limiting groove 5 is provided along the circumference of the limiting long rod 3 to ensure that the cushion block 4 can be stably embedded in the second limiting groove 5, thereby reducing the difficulty of installing the limiting long rod 3 or the cushion block 4, which is beneficial to improving the positioning efficiency of the parts.

[0048] like Figure 3 As shown, in a feasible implementation manner, the diameter of the end of the limiting long rod 3 is equal to the width of the first limiting groove 2.

[0049] In this technical solution, by making the diameter of the end of the limiting long rod 3 equal to the width of the first limiting groove 2, the end of the limiting long rod 3 will not be displaced after being embedded in the first limiting groove 2, thereby ensuring the stability and firmness of the installation of the limiting long rod 3 in the support frame 12, thereby ensuring the stability of the limiting long rod 3 in limiting the parts and preventing the parts from being displaced.

[0050] like Figure 4 As shown, in a feasible embodiment, at least two pallets 1 are stacked to form a pallet 1 assembly; wherein the first pallet 1a is plug-connected with the second pallet 1b.

[0051] In this technical solution, the stacked pallets 1 are plug-connected to facilitate assembly, and can achieve rapid positioning between the pallets 1 and improve the stability of the stacked pallets 1.

[0052] In some examples, pillars can be installed between the first pallet 1a and the second pallet 1b. The pillars are connected to the support plate 11 to support the overall structure of the pallet 1. When the weight of the heat-treated parts is heavy, the deformation of the pallet 1 can be effectively avoided. The pillars can also be installed at the locations with heavy weight according to the weight distribution of the parts on the pallet 1.

[0053] like Figures 1 to 3As shown, in a feasible embodiment, the support frame 12 includes: an outer frame 121, a support rod 123 and a guide channel 126; a first tray hole 122 is provided on the outer frame 121, and the outer frame 121 is fixedly connected to the tray 11 along the circumference of the tray 11; four support rods 123 are arranged at the four corners of the outer frame 121, and a positioning protrusion 124 is provided at the first end of the support rod 123, and a positioning groove 125 is provided at the second end of the support rod 123. When two trays 1 are stacked, the positioning protrusion 124 of the support rod 123 on the first tray 1a is embedded in the positioning groove 125 of the corresponding support rod 123 on the second tray 1b, so as to position the first tray 1a and the second tray 1b; the guide channel 126 penetrates the support rod 123 along the length direction of the support rod 123.

[0054] In this technical solution, by providing the first tray hole 122 on the outer frame 121, the air circulation is enhanced, so that the parts on the pallet 11 can be heated more evenly, and the heat dissipation of the tooling and parts can be accelerated, which is conducive to accelerating the heat treatment process of the parts; by providing a positioning protrusion 124 on the first end of the support rod 123 and a positioning groove 125 on the second end of the support rod 123, when the trays 1 are stacked, two adjacent trays 1 can be stably plugged in, and the trays 1 can be stably stacked after being turned 180 degrees, so that the positive and negative ends of the trays 1 can be stably connected. Both sides can be used, and by using both sides of the tray 1 alternately, the depression and deformation of the tray 1 can be reduced, the service life of the tray 1 is extended, and it is beneficial to the uniform and stable placement of parts, so that the parts are heated more evenly; by allowing the guide channel 126 to pass through the support rod 123, the interior of the support rod 123 is made hollow, and the support rod 123 is prevented from obstructing the flow of the quenching medium to ensure the best quenching effect, and it can also prevent the quenching medium from accumulating in the limiting groove during the quenching process, which can effectively prevent the quenching medium from splashing and improve the safety of the quenching process.

[0055] like Figures 1 to 3 As shown, in a feasible implementation manner, the cylindrical parts heat treatment tooling further includes: a lifting lug 6; the lifting lug 6 is symmetrically arranged on the outer frame 121.

[0056] In this technical solution, the lifting lugs 6 are used to lift the pallet 1 . By symmetrically arranging the lifting lugs 6 on the outer frame 121 , the pallet 1 can be closer to a horizontal state after being lifted, which is beneficial to maintaining the stability of the parts and the stacked pallets 1 .

[0057] Specifically, the lifting lug 6 is made of heat-resistant steel or ordinary carbon steel.

[0058] like Figure 6As shown, in a feasible embodiment, a second pallet hole 7 is provided on the support plate 11, a limiting sleeve 8 is detachably provided in the second pallet hole 7, a fastening part 10 is clamped in the limiting sleeve 8, a boss 9 is provided on the limiting sleeve 8, and the boss 9 is clamped with the pallet 1 to support the fastening part 10.

[0059] In this technical solution, a limiting sleeve 8 is placed in the second pallet hole 7, and a boss 9 is provided on the limiting sleeve 8 so that the limiting sleeve 8 is clamped and fixed on the pallet 11. The fastening parts 10 are passed through the limiting sleeve 8 so as to support the fastening parts 10 by the limiting sleeve 8, so as to achieve the effect of vertically placing the fastening parts 10 on the pallet 1 and prevent the fastening parts 10 from rolling. The fastening parts 10 are suspended and supported by the limiting sleeve 8, thereby improving the stability of the fastening parts 10 on the pallet 1 and improving the heat treatment effect of the fastening parts 10.

[0060] Furthermore, the second tray hole 7 is circular, so that the second tray hole 7 and the limiting sleeve 8 can better cooperate, so that the limiting sleeve 8 with different inner hole sizes can be adjusted according to different specifications of the heat-treated fastening parts 10, which is more applicable.

[0061] In some examples, the fastening parts 10 are bolt parts, the width of the head of the bolt parts is greater than the width of the tail, and the head of the bolt parts is limited by the limiting sleeve 8 to keep the parts in a vertical state instead of being placed horizontally, which can prevent the parts from rolling and ensure the stability of the parts during the heat treatment process; wherein, the second tray hole 7 can not only accelerate air circulation, but also play a role of giving way. The second tray hole 7 is effectively utilized so that longer bolt parts can be placed vertically on the tray 1 to accommodate fastening parts 10 of different specifications.

[0062] like Figure 6 As shown, in a feasible implementation manner, the sleeve-like part 20 is placed on the support plate 11 , and the sleeve-like part 20 is located between two adjacent parallel limiting long rods 3 , so that the sleeve-like part 20 is limited by the two limiting long rods 3 .

[0063] In this technical solution, the sleeve-like part 20 is located between two adjacent limiting long rods 3, so that the two limiting long rods 3 can simultaneously limit the part on both sides of the sleeve-like part 20, and then clamp and fix the part, thereby preventing the sleeve-like part 20 from tipping to one side, thereby improving the stability of the sleeve-like part 20 placed on the tray 1.

[0064] Furthermore, the sleeve-like parts 20 are placed directly above the second tray holes 7 , so that air can flow evenly through the inside of the sleeve-like parts 20 , which is beneficial to improving the uniformity of the heat treatment of the sleeve-like parts 20 .

[0065] like Figure 6 As shown, in a feasible embodiment, the fastening parts 10 are placed on the first pallet 1a, and the sleeve parts 20 are placed on the second pallet 1b. The fastening parts 10 and the sleeve parts 20 are respectively located at the second pallet holes 7 opposite to each other on the two pallets 1, and at least part of the fastening parts 10 extends into the sleeve parts 20.

[0066] In this technical solution, the fastening parts 10 are hoisted at the second tray hole 7 of the first tray 1a located on the upper layer. The fastening parts 10 are vertically suspended on the first tray 1a. The tail ends of the fastening parts 10 correspond to the second tray hole 7 of the second tray 1b. By extending the tail ends of the fastening parts 10 into the sleeve parts 20 placed opposite on the second tray 1b, the quenching medium can fully contact the sleeve parts 20 and the fastening parts 10 at the same time, thereby ensuring the quenching effect of the two types of parts, thereby achieving the effect of vertical placement and combined heat treatment.

[0067] It is understandable that when both the first tray 1a and the second tray 1b are placed with fastening parts 10, the parts on the first tray 1a and the parts on the second tray 1b need to be staggered.

[0068] It is easy for those skilled in the art to understand that, under the premise of no conflict, the above-mentioned advantageous methods can be freely combined and superimposed.

[0069] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application. The above are only preferred implementations of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and variations can be made without departing from the technical principles of the present application, and these improvements and variations should also be regarded as the protection scope of the present application.

Claims

1. A heat treatment tool for cylindrical parts, characterized in that: The cylindrical parts heat treatment tooling comprises: A pallet, the pallet comprising a support plate and a support frame, the support plate being embedded in the support frame, and the support plate is fixedly connected to the support frame; A first limiting groove, wherein the first limiting groove is arranged on the inner wall of the supporting frame along the circumference of the supporting frame, and the first limiting groove extends along the height direction of the supporting frame; A limiting long rod is arranged parallel to the tray, and two ends of the limiting long rod are detachably arranged in two opposite first limiting grooves so as to limit the parts through the limiting long rod.

2. A cylindrical parts heat treatment tool according to claim 1, characterized in that: A cushion block is arranged between the limiting long rod and the part, and the cushion block is used to fill the gap between the limiting long rod and the part.

3. A cylindrical parts heat treatment tool according to claim 2, characterized in that: The limiting long rod is provided with a second limiting groove, which is arranged on the limiting long rod along the circumference of the limiting long rod, and is recessed toward the axial direction of the limiting long rod, and is used to accommodate the cushion block.

4. A cylindrical parts heat treatment tool according to claim 1, characterized in that: The diameter of the end of the limiting long rod is equal to the width of the first limiting groove.

5. The cylindrical parts heat treatment tool according to claim 1, characterized in that: At least two trays are stacked to form a tray assembly; The first tray is plug-connected with the second tray.

6. A cylindrical parts heat treatment tool according to claim 5, characterized in that: The support frame comprises: An outer frame, wherein a first tray hole is provided on the outer frame, and the outer frame is fixedly connected to the tray along the circumference of the tray; Support rods, four of which are arranged at the four corners of the outer frame, a first end of each of which is provided with a positioning protrusion, and a second end of each of which is provided with a positioning groove, so that when two trays are stacked, the positioning protrusion of the support rod on the first tray is embedded in the positioning groove of the corresponding support rod on the second tray, so as to position the first tray and the second tray; A guide channel, wherein the guide channel penetrates the support rod along the length direction of the support rod.

7. A cylindrical parts heat treatment tool according to claim 6, characterized in that: The cylindrical parts heat treatment tooling also includes: The lifting ears are symmetrically arranged on the outer frame.

8. The cylindrical parts heat treatment tool according to claim 6, characterized in that: A second pallet hole is provided on the support plate, a limiting sleeve is detachably provided in the second pallet hole, fastening parts are clamped in the limiting sleeve, a boss is provided on the limiting sleeve, and the boss is clamped with the pallet to support the fastening parts.

9. A cylindrical parts heat treatment tool according to claim 8, characterized in that: The sleeve-like parts are placed on the supporting plate, and the sleeve-like parts are located between two adjacent parallel limiting long rods, so that the sleeve-like parts are limited by the two limiting long rods.

10. A cylindrical parts heat treatment tool according to claim 9, characterized in that: The fastening parts are placed on the first tray, and the sleeve parts are placed on the second tray. The fastening parts and the sleeve parts are respectively located at the second tray holes opposite to each other on the two trays, and at least part of the fastening parts extends into the sleeve parts.

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