Quenching clamping mechanism for bearing ring production

Abstract

The utility model belongs to the technical field of bearing quenching, and particularly relates to a quenching clamping mechanism for bearing ring production, which comprises a support tube and a clamping mechanism, three extension blocks are equidistantly distributed on the support tube in a surrounding manner, the extension blocks are connected with a placement frame through hinges, and workpieces are placed on the placement frame; the clamping mechanism comprises clamping arms and a mounting plate, positioning rods are symmetrically arranged on the mounting plate, the two clamping arms are slidably mounted on the positioning rods, a bidirectional screw is arranged between the two positioning rods and matched in the clamping arms, driven teeth are fixed to the middles of the clamping arms, transmission teeth are meshed with the lower portions of the driven teeth, and the transmission teeth are meshed with the lower portions of the transmission teeth. The utility model has the advantages that: the workpiece is mounted from bottom to top, pushed upwards to be in contact with the lower part of the placing frame, and continuously pushed inwards to be folded until the workpiece is separated from the limitation of the placing frame and moves downwards to fall to the upper part of the placing frame to be stably placed, and other clamping mechanisms do not need to be added.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing quenching, in particular to a quenching clamping mechanism used for the production of bearing rings. Background Art

[0002] Bearing is an important component in modern mechanical equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. Rolling bearings are generally composed of four parts: outer ring, inner ring, rolling element and cage. According to the shape of the rolling element, rolling bearings are divided into two categories: ball bearings and roller bearings. When processing bearings, quenching equipment is needed to quench them to improve their strength.

[0003] The Chinese patent with the authorization announcement number CN112981086A discloses a quenching device for bearing ring production, which relates to the field of heat treatment technology; in order to solve the problem of low clamping efficiency; specifically includes a machine base, the top outer wall of the machine base is provided with a main moving mechanism, the top outer wall of the main moving mechanism is provided with a rotating mechanism, the top outer wall of the rotating mechanism is provided with a clamping mechanism, the top outer wall of the machine base is fixed with a quenching box by bolts, the inner wall of the quenching box is slidably connected with a quenching box cover, the clamping mechanism includes a rotating seat, an "L"-shaped clamping arm and a clamping claw, the top outer wall of the rotating seat is fixed with two multi-sunk hinged plates by bolts, the bottom outer wall of the "L"-shaped clamping arm is rotatably connected to the outer wall of the hinged plate, the top outer wall of the "L"-shaped clamping arm is rotatably connected to the outer wall of the clamping claw, the middle inner wall of the rotating seat is slidably connected with a sliding rod, and the top outer wall of the sliding rod is fixed with a support platform by bolts. The present invention does not require manual additional clamping, is convenient and fast, and has high efficiency.

[0004] The above patent only clamps the workpiece by a clamping mechanism. When taking the workpiece after quenching, the high temperature on the workpiece surface requires manual clamping of the workpiece, which is inconvenient to operate. Moreover, the temperature of the clamping table after quenching is maintained at the same temperature as the workpiece. Improper operation may easily cause burns. The parts themselves are heavy, and clamping the workpiece by a clamping mechanism increases the cost of using the equipment. Utility Model Content

[0005] The utility model overcomes the deficiencies of the prior art and solves the technical problems of manual clamping and equipment use cost.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a quenching clamping mechanism for bearing ring production, comprising a support tube and a clamping mechanism, wherein the support tube is equidistantly surrounded by three extension blocks, the extension blocks are hingedly connected to a placing rack, and a workpiece is placed on the placing rack;

[0007] The clamping mechanism comprises: a clamping arm and a mounting plate, wherein the mounting plate is symmetrically provided with positioning rods, and two clamping arms are slidably mounted on the positioning rods, and a bidirectional screw is provided between the two positioning rods, and the bidirectional screw is fitted in the clamping arm, and a driven tooth is fixed in the middle of the clamping arm, and a transmission tooth is meshed below the driven tooth;

[0008] A side arm is fixed on one side of the mounting plate, a connecting block is detachably connected above the side arm, a hydraulic pump is provided above the connecting block, a mounting block is fixed above the hydraulic pump, side blocks are provided on both sides of the mounting block, and a displacement mechanism is installed outside the mounting block.

[0009] Furthermore, the displacement mechanism includes a suspension arm, a mounting block is installed in the suspension arm, a second motor is fixed to the side of the suspension arm, and a threaded hole is penetrated on the top of the mounting block.

[0010] Furthermore, a blocking plate is fixed to the bottom of the support tube.

[0011] Furthermore, the maximum unfolding angle of the display rack is 90°.

[0012] The blocking plate can prevent the display rack from rotating downward, and the blocking plate limits the rotation position of the display rack, so that the maximum unfolding angle of the display rack is 90°. The setting of 90° can facilitate the workpiece to be placed flat on the display rack.

[0013] Furthermore, the opening of the clamping arm is in an arc-shaped structure. The clamping arm with an arc-shaped structure can be easily wrapped around the outer wall of the circular support tube, and there is an anti-slip layer at the arc-shaped opening, which can improve the stability of the clamping arm clamping on the outer wall of the circular support tube.

[0014] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0015] The workpiece is installed from bottom to top. The workpiece is pushed upward to contact the bottom of the placement frame. The placement frame will be folded if the workpiece is pushed inward until it is free from the limit of the placement frame. The workpiece moves down and falls onto the top of the placement frame for stable placement without adding other clamping mechanisms.

[0016] The rotation of the bidirectional screw can drive the two clamping arms to move synchronously, thereby achieving the functions of clamping and loosening the support tube. The hydraulic pump is controlled to start, the clamping arm is lowered, and the support tube is placed in the quenching medium, that is, the workpiece is quickly cooled. After the workpiece is cooled, the clamping arm is started by controlling the hydraulic pump, and the clamping arm rises. The workpiece is also clamped by the clamping arm, which makes it convenient to place the workpiece in the quenching box for quenching without manual clamping of the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the structure on the support pipe of the utility model;

[0019] Figure 3 The structure diagram of some parts of the utility model is shown in FIG. Figure 1 ;

[0020] Figure 4 It is a schematic diagram of the enlarged structure of the utility model A;

[0021] Figure 5 The structure diagram of some parts of the utility model is shown in FIG. Figure 2 ;

[0022] Explanation of the accompanying drawings: 10. Support tube; 11. Workpiece; 12. Extension block; 13. Display rack; 14. Clamping arm; 15. Mounting plate; 16. Positioning rod; 17. Bidirectional screw; 18. Driven gear; 19. Transmission gear; 20. Reducer; 21. First motor; 22. Side arm; 23. Connecting block; 24. Hydraulic pump; 25. Mounting block; 26. Side block; 27. Threaded hole; 28. Boom; 29. ​​Second motor; 30. Boom; 31. Blocking plate. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0024] refer to Figure 1-Figure 5 A quenching clamping mechanism for bearing ring production includes a support tube 10 and a clamping mechanism, wherein the support tube 10 is equidistantly surrounded by three extension blocks 12, and a display rack 13 is hingedly connected to the extension block 12, and a workpiece 11 is placed on the display rack 13; according to Figure 1 As shown by the middle arrow, the workpiece 11 is installed from bottom to top, the workpiece 11 is pushed upward to contact the bottom of the display rack 13, and the display rack 13 is folded by continuing to push it inward until the workpiece 11 is free from the restriction of the display rack 13, and the display rack 13 is unfolded as shown in FIG. Figure 2 In the state in which the workpiece 11 moves downward and falls onto the top of the placement rack 13 for stable placement;

[0025] It is worth noting that: a plurality of raised columns are provided on the display rack 13, and a space for placing the workpiece 11 is formed between the columns. The space is used to limit the position of the workpiece 11 to prevent it from loosening. With the setting of three display racks 13, the workpiece 11 can be well stabilized, and the positions of different columns are used to place workpieces 11 of different sizes.

[0026] The clamping mechanism includes: a clamping arm 14 and a mounting plate 15, a positioning rod 16 is symmetrically provided on the mounting plate 15, two clamping arms 14 are slidably installed on the positioning rod 16, a bidirectional screw 17 is provided between the two positioning rods 16, the bidirectional screw 17 is matched in the clamping arm 14, and the rotation of the bidirectional screw 17 can drive the two clamping arms 14 to move synchronously, thereby achieving the function of clamping the support tube 10 and loosening the support tube 10;

[0027] Furthermore, a driven tooth 18 is fixed on the bidirectional screw 17 between the two clamping arms 14, and a transmission tooth 19 is meshed below the driven tooth 18. The transmission tooth 19 is installed on a reduction box 20, and a first motor 21 is fixed to one side of the reduction box 20. By starting the first motor 21, the driven tooth 18 and the transmission tooth 19 are meshed with each other, driving the two clamping arms 14 to move.

[0028] refer to Figure 3-Figure 5 A side arm 22 is fixed to one side of the mounting plate 15, and a connecting block 23 is detachably connected to the top of the side arm 22. A hydraulic pump 24 is provided above the connecting block 23, and the output end of the hydraulic pump 24 is fixed above the connecting block 23. The hydraulic pump 24 is used to control the clamping arm 14 to rise and fall. When the workpiece 11 is heated to a certain appropriate temperature and maintained for a period of time, it is then immersed in a quenching medium for rapid cooling to improve the hardness and wear resistance of the metal workpiece. When the workpiece 11 is placed in the quenching medium, the hydraulic pump 24 is started by computer control or remote control, the clamping arm 14 is lowered, and the support tube 10 is placed in the quenching medium, that is, the workpiece 11 is quickly cooled. After the workpiece 11 is cooled, the clamping arm 14 is started by controlling the hydraulic pump 24. The clamping arm 14 rises and is also clamped by the clamping arm 14, so that the workpiece 11 can be conveniently placed in the quenching box for quenching, and there is no need to manually clamp the workpiece 11.

[0029] Furthermore, a mounting block 25 is fixed above the hydraulic pump 24, and side blocks 26 are provided on both sides of the mounting block 25. A displacement mechanism is installed outside the mounting block 25, and the displacement mechanism includes a suspension arm 28, and the mounting block 25 is installed in the suspension arm 28. A second motor 29 is fixed to the side of the suspension arm 28, and a threaded hole 27 is penetrated above the mounting block 25; four suspension rods 30 are fixed on the top of the suspension arm 28, and the suspension rods 30 are hung on the top wall to fix the suspension arm 28. The output end of the second motor 29 is a threaded rod, and the threaded rod cooperates with the threaded hole 27. The second motor 29 is driven by computer control or remote control, so as to realize the horizontal displacement of the clamping arm 14. When the clamping arm 14 rises, the cooled workpiece 11 can be removed. It only needs to loosen the clamping arm 14, and the second motor 29 starts to move the clamping arm 14, and the workpiece 11 is pushed out of the support tube 10 from above to complete the removal of the workpiece 11.

[0030] refer to Figure 2A blocking plate 31 is fixed to the bottom of the support tube 10. The blocking plate 31 can prevent the display rack 13 from rotating downward, and the blocking plate 31 limits the rotation position of the display rack 13, so that the maximum expansion angle of the display rack 13 is 90°. The setting of 90° can facilitate the workpiece 11 to be placed flat on the display rack 13.

[0031] The opening of the clamping arm 14 is in an arc-shaped structure. The clamping arm 14 with an arc-shaped structure can be easily wrapped around the outer wall of the circular support tube 10, and there is an anti-slip layer at the arc-shaped opening, which can improve the stability of the clamping arm 14 clamping the outer wall of the circular support tube 10.

[0032] In this embodiment, the workpiece 11 is installed from bottom to top, the workpiece 11 is pushed upward to contact the bottom of the rack 13, and the rack 13 is folded when the workpiece 11 is pushed inward until the workpiece 11 is free from the restriction of the rack 13, and the rack 13 is unfolded as shown in FIG. Figure 2 In the form, the workpiece 11 moves down and falls onto the top of the placement rack 13 for stable placement. By starting the first motor 21, the driven gear 18 and the transmission gear 19 are meshed with each other, driving the two clamping arms 14 to move and clamp the workpiece 11;

[0033] The hydraulic pump 24 is started by computer control or remote control, the clamping arm 14 descends, and the support tube 10 is placed in the quenching medium, that is, the workpiece 11 is quickly cooled. After the workpiece 11 is cooled, the clamping arm 14 is started by controlling the hydraulic pump 24, and the clamping arm 14 rises. Similarly, the workpiece 11 can be conveniently placed in the quenching box for quenching by the clamping arm 14, and there is no need to manually clamp the workpiece 11.

[0034] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0035] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0036] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A quenching clamping mechanism for bearing ring production, characterized in that: It comprises a support tube (10) and a clamping mechanism, wherein the support tube (10) is provided with three extension blocks (12) equidistantly distributed around it, the extension blocks (12) are hingedly connected to a placement frame (13), and a workpiece (11) is placed on the placement frame (13); The clamping mechanism comprises: a clamping arm (14) and a mounting plate (15); a positioning rod (16) is symmetrically provided on the mounting plate (15); two clamping arms (14) are slidably mounted on the positioning rod (16); a bidirectional screw rod (17) is provided between the two positioning rods (16); a driven tooth (18) is fixed in the middle of the clamping arm (14); and a transmission tooth (19) is meshed below the driven tooth (18); A side arm (22) is fixed to one side of the mounting plate (15); a connection block (23) is detachably connected to the top of the side arm (22); a hydraulic pump (24) is provided above the connection block (23); a mounting block (25) is fixed above the hydraulic pump (24); side blocks (26) are provided on both sides of the mounting block (25); and a displacement mechanism is installed outside the mounting block (25).

2. A quenching clamping mechanism for bearing ring production according to claim 1, characterized in that: The displacement mechanism comprises a suspension arm (28), and a mounting block (25) is mounted in the suspension arm (28).

3. A quenching clamping mechanism for bearing ring production according to claim 2, characterized in that: A second motor (29) is fixed to the side of the suspension arm (28), and a threaded hole (27) penetrates the top of the mounting block (25).

4. A quenching clamping mechanism for bearing ring production according to claim 1, characterized in that: A blocking plate (31) is fixed to the bottom of the support tube (10).

5. The quenching clamping mechanism for bearing ring production according to claim 1, characterized in that: The maximum unfolding angle of the display rack (13) is 90°.

6. A quenching clamping mechanism for bearing ring production according to claim 1, characterized in that: The opening of the clamping arm (14) is in an arc-shaped structure.

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