Continuous conveying assembly suitable for heat treatment of double-row angular contact ball bearing accessories

Abstract

The invention discloses a continuous conveying assembly suitable for heat treatment of double-row angular contact ball bearing accessories, and aims to optimize and improve the heat treatment process of the accessories such as inner rings or outer rings in double-row angular contact ball bearings. An optimization mode of combining continuous transmission with independent heat treatment action is adopted, the accessories such as an inner ring or an outer ring are directionally transmitted at a constant speed through a chain type transmission structure, and independent heat treatment action can be carried out on one or more accessories in the continuous transmission process through cooperation of an interruption action and a working assembly. All heat treatment actions do not interfere with one another, compared with a conventional heat treatment procedure, the procedures of stacking and transferring are abandoned, the heat treatment working hours can be shortened, the heat treatment efficiency is improved, and on the basis, directional clamping and limiting are conducted on the inner ring or the outer ring according to the independent heat treatment actions; the purpose is to cooperate with heat treatment actions to improve workpiece position stability.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying structures, and particularly to a continuous conveying assembly applicable to the heat treatment of double-row angular contact ball bearing fittings. Background Art

[0002] To meet the usage requirements, the double-row angular contact ball bearings need to have hardness / strength that meets the process requirements. For this, during its production process, through a heat treatment process, specifically, the product is heated to a specified temperature and then cooled. Reference can be made to the relevant content involved in the publication number CN109402512A.

[0003] The heat treatment process for structures such as the outer ring and inner ring in the fittings is described. In conventional operations, after loading the materials in cooperation with structures such as a material rack, they are then pushed into a heating furnace. Reference can be made to the relevant content in the publication numbers CN113637835A and CN110983020A. However, it should be noted that: the double-row angular contact ball bearings are relatively small in volume, and during the heat treatment (normalizing, quenching, annealing, etc.) process, two additional processes of transfer and material loading are required. Specifically, it is necessary to load the materials one by one on the material rack, and after one heat treatment process is completed, it is transferred to another heat treatment process, thereby prolonging the overall heat treatment working hours. It can be directly understood that: the heat treatment efficiency is reduced. For this, the present application proposes a solution. Summary of the Invention

[0004] The purpose of the present invention is to provide a continuous conveying assembly applicable to the heat treatment of double-row angular contact ball bearing fittings. For the heat treatment process of double-row angular contact ball bearing fittings, structures such as a material rack are commonly used, and in the specific heat treatment process, two additional processes of material loading and transfer are required, which prolongs the overall heat treatment working hours and thus indirectly reduces the heat treatment efficiency.

[0005] The purpose of the present invention can be achieved through the following technical solutions: A continuous conveying assembly applicable to the heat treatment of double-row angular contact ball bearing fittings, which is applied in the heat treatment process of double-row angular contact ball bearings, includes a working base and a moving base. The moving base is symmetrically installed on the working base along the width direction of the working base, and the setting direction of the moving base is parallel to the length direction of the working base. The working base forms a workpiece channel through the two moving bases.

[0006] A chain transmission structure is provided in the two moving bases, and a cooperating clamping assembly is provided in the moving base according to the chain transmission structure. An action base and a working component are provided on the two moving bases. The double-row angular contact ball bearings perform a directional movement action in the workpiece channel through the chain transmission structure. The cooperating clamping assembly performs a positioning action in cooperation with the directional movement action. The working component performs a heat treatment action according to the positioning action.

[0007] Further set as: a vertically arranged blanking hopper platform is installed on the upper side of the positions corresponding to one end of the workpiece channel of the two moving base stations.

[0008] Further set as: the chain transmission structure is composed of a chain-type conveyor belt, chain gears and a driving motor, and the distance between the two chain-type conveyor belts along the width direction of the working base is equal to or greater than the outer diameter of the double-row angular contact ball bearing.

[0009] Further set as: a driving flap is installed on the outer wall position of the chain-type conveyor belt corresponding to the workpiece channel, the driving flaps are arranged at equal intervals along the contour line of the chain-type conveyor belt, and the driving flaps are inclined and bent along the winding direction of the chain-type conveyor belt.

[0010] Further set as: the distance between the driving flaps in two adjacent positions along the length direction of the working base is greater than the outer diameter of the double-row angular contact ball bearing, and the linear distance of the driving flaps along the width direction of the working base is less than the outer radius of the double-row angular contact ball bearing.

[0011] Further set as: the coordinated clamping components are linearly arranged at equal intervals along the length direction of the working base, and the coordinated clamping components include a mounting table, a first-level linear driving component, a second-level linear driving component and an arc-shaped frame. The first-level linear driving component and the second-level linear driving component are installed on the working base through the mounting table, and the second-level linear driving component is symmetrically arranged on both sides of the first-level linear driving component along the corresponding length direction of the working base.

[0012] Further set as: a central roller and a position-blocking roller are respectively installed at the end positions of the output shafts of the first-level linear driving component and the second-level linear driving component. The middle position of the arc-shaped frame is rotatably connected to the central roller, and the output directions of the first-level linear driving component and the second-level linear driving component are parallel to the width direction of the working base.

[0013] Further set as: the arc-shaped frame is arranged close to the workpiece channel, and the arc-shaped frame is bent in an arc shape along the direction close to the workpiece channel. Limiting rollers are rotatably installed at both ends of the arc-shaped frame.

[0014] The present invention has the following beneficial effects:

[0015] 1. The heat treatment process for accessories such as the inner ring or outer ring of a double-row angular contact ball bearing is described. Since conventional heat treatment processes use structures such as heating furnaces, and due to the relatively small volume of double-row angular contact ball bearings, additional processes such as loading and transferring materials are added in the specific heat treatment process, which extends the overall heat treatment working hours. The significant difference between the present invention and the conventional heat treatment process lies in: based on a chain-type transmission structure, driving the double-row angular contact ball bearings to move uniformly in a fixed direction in the workpiece channel, and during the uniform movement in a fixed direction, moving up and down through the working components to perform independent heat treatment actions on one or more double-row angular contact ball bearings. Each heat treatment action does not interfere with each other. Compared with the conventional heat treatment process, processes such as loading and transferring materials are abandoned, which can shorten the heat treatment working hours and improve the heat treatment efficiency.

[0016] 2. Based on the above content, when the double-row angular contact ball bearing is combined with the workpiece assembly for heat treatment actions, it is also necessary to use a coordinated clamping component to position a single double-row angular contact ball bearing. Its essence is: temporarily suspend the transmission process of the chain-type conveyor belt, and interfere with the clamping state of the chain-type conveyor belt relative to the double-row angular contact ball bearing through an arc-shaped frame. The purpose is to stabilize the position of the double-row angular contact ball bearing during the heat treatment action and avoid affecting the heat treatment effect due to the maintenance difference between the working component and the double-row angular contact ball bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 FIG. is a schematic structural diagram of a continuous conveying component suitable for heat treatment of double-row angular contact ball bearing accessories proposed by the present invention;

[0019] Figure 2 In the continuous conveying component suitable for heat treatment of double-row angular contact ball bearing accessories proposed by the present invention Figure 2 is a top view;

[0020] Figure 3 FIG. is a sectional view of the working base in the continuous conveying component suitable for heat treatment of double-row angular contact ball bearing accessories proposed by the present invention;

[0021] Figure 4 In the continuous conveying component suitable for heat treatment of double-row angular contact ball bearing accessories proposed by the present invention Figure 3 is an exploded view;

[0022] Figure 5 It is the top view of the moving base corresponding to the continuous conveying component for the heat treatment of double row angular contact ball bearing fittings proposed by the present invention;

[0023] Figure 6 It is the motion schematic diagram of the coordinated clamping component in the continuous conveying component for the heat treatment of double row angular contact ball bearing fittings proposed by the present invention.

[0024] In the figure: 1. Working base; 2. Hopper platform; 3. Moving base; 4. Action base; 5. Working component; 6. Driving paddle; 7. Chain conveyor belt; 8. Chain gear; 9. Installation table; 10. Arc-shaped frame; 11. Limit roller; 12. First-level straight-line driving component; 13. Second-level straight-line driving component; 14. Blocking roller; 15. Center roller. Specific embodiments

[0025] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Embodiment 1: For the heat treatment process of double row angular contact ball bearing fittings, conventional methods often use structures such as racks. During the specific heat treatment process, additional processes of material stacking and transportation are required, which prolongs the overall heat treatment working hours and indirectly reduces the heat treatment efficiency. Therefore, the following technical solutions are proposed:

[0027] Refer to Figures 1 to 6 In this embodiment, the continuous conveying component for the heat treatment of double row angular contact ball bearing fittings is applied to the heat treatment process of double row angular contact ball bearings, including a working base 1 and a moving base 3. The moving base 3 is symmetrically installed on the working base 1 along the width direction of the working base 1, and the setting direction of the moving base 3 is parallel to the length direction of the working base 1. The working base 1 forms a workpiece channel through the two moving bases 3;

[0028] A chain transmission structure is provided in the two moving bases 3, and a coordinated clamping component is provided in the moving base 3 according to the chain transmission structure. An action base 4 and a working component 5 are provided on the two moving bases 3. The double row angular contact ball bearings perform a directional movement action in the workpiece channel through the chain transmission structure, and the coordinated clamping component cooperates with the directional movement action to perform a positioning action, and the working component 5 performs a heat treatment action according to the positioning action.

[0029] Basic principle: The present invention mainly aims at the heat treatment process of double-row angular contact ball bearings. The conventional heat treatment process is to stack the inner rings or outer rings of multiple double-row angular contact ball bearing fittings in sequence and then push them into a heating structure such as a heating furnace. However, the structure of double-row angular contact ball bearings is relatively small. For the heat treatment method using a conventional heating furnace, it takes time for material stacking and transportation. Therefore, the present invention optimizes and improves this process:

[0030] Specifically, it is mainly a continuous transmission structure, specifically referring to Figure 4 and Figure 5 for illustration. Based on two chain gears 8 and a chain conveyor belt 7, an independently arranged chain transmission structure is formed. Specifically, two chain transmission structures form a workpiece passage through which double-row angular contact ball bearings can pass. The chain conveyor belt 7 is driven by the chain gear 8 in a rotating state, and a driving paddle 6 also needs to be further added to the chain conveyor belt 7;

[0031] According to the diameter of the inner ring or outer ring in the double-row angular contact ball bearing, set the distance between the two chain transmission structures and the distance of the driving paddle 6 along the length and width directions of the working base 1 to ensure that the double-row angular contact ball bearing moves directionally and uniformly under the action of the driving paddle 6. During the directional movement of the double-row angular contact ball bearing, there is a process of temporarily suspending operation. During this process of the double-row angular contact ball bearing suspending operation, the working component 5 starts to perform the heat treatment process on the double-row angular contact ball bearing in an independent position;

[0032] Regarding a brief description of the working component 5: Its essence is a telescopic cylinder structure and a heating structure. The heating structure is inserted into the inner ring or outer ring of the double-row angular contact ball bearing by the telescopic cylinder structure, and the double-row angular contact ball bearing is heated by the heating structure. The essence of the heating structure can be medium-frequency / low-frequency heating method, which is not described in this invention;

[0033] Regarding the feeding process during the transmission of double-row angular contact ball bearings: Specifically, the feeding hopper table 2 is used. Taking Figure 1 and Figure 2 as examples, specifically, multiple double-row angular contact ball bearings are directly placed in the feeding hopper table 2 in the vertical direction. Under the action of gravity, a single double-row angular contact ball bearing will naturally fall to one end position of the workpiece passage and be driven to move by the driving paddle 6, and the feeding is gradually carried out in this way;

[0034] The obvious difference between the present invention and the conventional heat treatment process of the accessories in the double-row angular contact ball bearing lies in that there is no need to add a material loading and transfer process. The material loading process set in the present invention is only located in the loading hopper table 2, and the double-row angular contact ball bearing that has undergone heating and cooling actions can be directly collected as it flows out from the workpiece channel. This can greatly shorten the heat treatment working hours and indirectly improve the heat treatment effect.

[0035] Embodiment 2: Supplementary description of the transmission process of the double-row angular contact ball bearing:

[0036] Two moving bases 3 are installed with a vertically arranged unloading hopper table 2 at the upper side position corresponding to one end of the workpiece channel. The chain transmission structure consists of a chain-type conveyor belt 7, a chain gear 8, and a driving motor. The spacing between the two chain-type conveyor belts 7 along the width direction of the working base 1 is equal to or greater than the outer diameter of the double-row angular contact ball bearing;

[0037] A driving flap 6 is installed at the outer wall position of the chain-type conveyor belt 7 corresponding to the workpiece channel. The driving flaps 6 are arranged at equal intervals along the contour line of the chain-type conveyor belt 7, and the driving flaps 6 are inclined and curved along the winding direction of the chain-type conveyor belt 7. The spacing between two adjacent driving flaps 6 along the length direction of the working base 1 is greater than the outer diameter of the double-row angular contact ball bearing, and the linear distance of the driving flaps 6 along the width direction of the working base 1 is less than the outer radius of the double-row angular contact ball bearing.

[0038] Scheme description: Taking Figure 5 as an example, since the outer ring or inner ring in the double-row angular contact ball bearing moves from left to right, the chain-type conveyor belt 7 at its upper side position is restricted to rotate counterclockwise, and the chain-type conveyor belt 7 at the lower side position rotates clockwise. However, relying solely on the transmission process of the chain-type conveyor belt 7, there may be a problem of difficulty in moving the double-row angular contact ball bearing. Therefore, it is necessary to add a driving flap 6 to drive the double-row angular contact ball bearing to move;

[0039] However, in order to avoid interference between the driving flaps 6 in the two sets of chain transmission structures, the following two key conditions need to be restricted: The spacing between two adjacent driving flaps 6 along the length direction of the working base 1 is greater than the outer diameter of the double-row angular contact ball bearing, and the linear distance of the driving flaps 6 along the width direction of the working base 1 is less than the outer radius of the double-row angular contact ball bearing, and it is also necessary to ensure that the gap between two adjacent driving flaps 6 is large enough to facilitate the unloading action of the unloading hopper table 2.

[0040] Embodiment 3: Based on Embodiment 2, a supplementary description of the coordinated clamping assembly is proposed:

[0041] The co - acting clamping components are linearly and equidistantly arranged along the length direction of the working base 1. The co - acting clamping components include a mounting table 9, a first - stage linear driving component 12, a second - stage linear driving component 13, and an arc - shaped frame 10. The first - stage linear driving component 12 and the second - stage linear driving component 13 are installed on the working base 1 through the mounting table 9, and the second - stage linear driving component 13 is symmetrically arranged on both sides of the first - stage linear driving component 12 along the length direction of the corresponding working base 1;

[0042] At the end positions of the output shafts of the first - stage linear driving component 12 and the second - stage linear driving component 13, a central roller 15 and a position - blocking roller 14 are respectively installed. The middle position of the arc - shaped frame 10 is rotatably connected to the central roller 15. The output directions of the first - stage linear driving component 12 and the second - stage linear driving component 13 are parallel to the width direction of the working base 1. The arc - shaped frame 10 is arranged close to the workpiece channel, and the arc - shaped frame 10 is bent in an arc shape along the direction close to the workpiece channel. At both ends of the arc - shaped frame 10, limiting rollers 11 are rotatably installed.

[0043] Scheme description: Since each double - row angular contact ball bearing is mainly driven by the driving paddle 6, but during the specific movement process, the specific position of a single double - row angular contact ball bearing is unstable, which is not conducive to the heat treatment action performed by the later working component 4. When the heating structure moves downward to heat the double - row angular contact ball bearing, the heating structure may collide with the double - row angular contact ball bearing. For this, the co - acting clamping component is specifically utilized;

[0044] Taking the position in Figure 5 as an example for the initial state of the co - acting clamping component, on the one hand, the arc - shaped frame 10 is in a natural leveling manner, and on the other hand, under the combined action of the first - stage linear driving component 12 and the second - stage linear driving component 13, in essence, the two limiting rollers 11 are linearly arranged along the length direction of the working base 1, and the two limiting rollers 11 are exactly tangent to the inner wall position of the chain - type conveyor belt 7. The purpose is to ensure that the distance between the two chain - through structures is always equal to or greater than the outer diameter of the double - row angular contact ball bearing fitting through the arc - shaped frame 10 and the limiting rollers 11, and it will not interfere with the normal transmission of the double - row angular contact ball bearing fitting;

[0045] And during the normal transmission of the double - row angular contact ball bearing fitting, the double - row angular contact ball bearing generates a reaction force on the chain - type conveyor belt 7, resulting in the non - natural deflection of the arc - shaped frame 10 affected by the chain - type conveyor belt 7. However, during this process, the second - stage linear driving component 13 can drive the position - blocking roller 14 to move along the width direction of the working base 1, and the position - blocking roller 14 is mainly located at the outer edge position of the arc - shaped spring frame 10. Thus, under the action of the two position - blocking rollers 14, the deflection direction of the arc - shaped frame 10 can be interfered;

[0046] However, when heat treatment operations need to be performed through the working component 5, in order to ensure the stable position of the double-row angular contact ball bearing fittings, it is necessary to further drive the overall arc-shaped frame 10 to move in the direction close to the workpiece channel through the first-level straight-line drive structure 12, so as to interfere with the deformation degree of the chain-type conveyor belt 7 through the two limit rollers 11. Its essence is to clamp a single double-row angular contact ball bearing fitting with the arc-shaped frame 10 and cooperate with the heat treatment operations performed by the working component 5.

[0047] In summary: Optimize and improve the heat treatment process for fittings such as the inner ring or outer ring in double-row angular contact ball bearings. Since the structures of the inner ring and outer ring are relatively small in volume, an optimization method of continuous transmission combined with independent heat treatment operations is adopted. Fittings such as the inner ring or outer ring are directionally and uniformly transmitted through the chain-type transmission structure, and during the continuous transmission process, independent heat treatment operations can be performed on one or more fittings by interrupting the operation in cooperation with the working component. Each heat treatment operation does not interfere with each other. Compared with the conventional heat treatment process, operations such as loading and transfer are abandoned, which can shorten the heat treatment time and improve the heat treatment efficiency. On this basis, directional clamping and limiting are performed on the inner ring or outer ring for independent heat treatment operations, aiming to improve the workpiece position stability in cooperation with the heat treatment operations.

[0048] The above content is only an example and explanation of the structure of the present invention. Those skilled in the art of the present technology can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, as long as they do not deviate from the structure of the invention or exceed the scope defined by this claims, they should fall within the protection scope of the present invention.

Claims

1. A continuous conveying assembly suitable for heat treatment of double-row angular contact ball bearing accessories, used in the heat treatment process of double-row angular contact ball bearings, characterized in that: The invention comprises a working base (1) and a movable base (3), wherein the movable base (3) is symmetrically mounted on the working base (1) along the width direction of the working base (1), and the setting direction of the movable base (3) is parallel to the length direction of the working base (1), and the working base (1) forms a workpiece channel through the two movable bases (3); A chain transmission structure is provided in the two movable bases (3), and a cooperative clamping assembly is provided in the movable base (3) according to the chain transmission structure. An action base (4) and a working assembly (5) are provided on the two movable bases (3). The double-row angular contact ball bearing performs a directional movement in the workpiece channel through the chain transmission structure, the cooperative clamping assembly performs a positioning action in coordination with the directional movement action, and the working assembly (5) performs a heat treatment action according to the positioning action.

2. The continuous conveying assembly suitable for heat treatment of double-row angular contact ball bearing accessories according to claim 1, characterized in that: A lower hopper platform (2) arranged vertically is installed on the upper side of the two movable base platforms (3) corresponding to one end of the workpiece channel.

3. The continuous conveying assembly suitable for heat treatment of double-row angular contact ball bearing accessories according to claim 1, characterized in that: The chain transmission structure is composed of a chain transmission belt (7), a chain gear (8) and a driving motor, and the spacing between the two chain transmission belts (7) along the width direction of the working base (1) is equal to or greater than the outer ring diameter of the double-row angular contact ball bearing.

4. The continuous conveying assembly suitable for heat treatment of double-row angular contact ball bearing accessories according to claim 2, characterized in that: A driving paddle (6) is installed on the outer wall position of the chain conveyor belt (7) corresponding to the workpiece channel, and the driving paddle (6) is arranged at equal distances along the contour line of the chain conveyor belt (7), and the driving paddle (6) is inclined and curved along the winding direction of the chain conveyor belt (7).

5. The continuous conveying assembly suitable for heat treatment of double-row angular contact ball bearing accessories according to claim 4, characterized in that: The spacing between the driving paddles (6) in two adjacent positions along the length direction of the working base (1) is greater than the outer ring diameter of the double-row angular contact ball bearing, and the linear distance between the driving paddles (6) along the width direction of the working base (1) is less than the outer ring radius of the double-row angular contact ball bearing.

6. The continuous conveying assembly suitable for heat treatment of double-row angular contact ball bearing accessories according to claim 1, characterized in that: The cooperative clamping assembly is linearly equidistantly arranged along the length direction of the working base (1), and the cooperative clamping assembly comprises a mounting platform (9), a primary straight-moving driving assembly (12), a secondary straight-moving driving assembly (13) and an arc frame (10); the primary straight-moving driving assembly (12) and the secondary straight-moving driving assembly (13) are mounted on the working base (1) via the mounting platform (9), and the secondary straight-moving driving assembly (13) is symmetrically arranged at two sides of the primary straight-moving driving assembly (12) along the length direction of the corresponding working base (1).

7. The continuous conveying assembly suitable for heat treatment of double row angular contact ball bearing accessories according to claim 6, characterized in that: A central roller (15) and a blocking roller (14) are respectively installed at the end positions of the output shafts of the primary straight drive assembly (12) and the secondary straight drive assembly (13); the middle end position of the arc frame (10) is rotatably connected to the central roller (15); and the output directions of the primary straight drive assembly (12) and the secondary straight drive assembly (13) are parallel to the width direction of the working base (1).

8. The continuous conveying assembly suitable for heat treatment of double row angular contact ball bearing parts according to claim 7, characterized in that: The arc frame (10) is arranged at a position close to the workpiece channel, and the arc frame (10) is in a curved arc shape along a direction close to the workpiece channel. Limiting rollers (11) are rotatably mounted at both ends of the arc frame (10).

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