Positioning tool for medium-frequency quenching machine tool

Abstract

The utility model belongs to the technical field of quench machining tools, and discloses a medium-frequency quench machining tool positioning tool which comprises a workbench, a plurality of linear sliding grooves are formed in the workbench in an annular array mode, clamping seats are arranged in the linear sliding grooves, a rotary positioning assembly is arranged at the bottom of the workbench, and lifting cavities are formed in the clamping seats. A clamping plate is arranged at the top of the clamping seat, a gear is coaxially installed at the bottom of the lead screw, a lifting motor used for driving the lead screw to rotate is installed at the bottom of the clamping seat, and the gear is matched with the toothed plate in an engaged mode. According to the positioning tool for the medium-frequency quenching machine tool, the upper clamping assembly, the lower clamping assembly and the rotary positioning assembly are arranged, a gear is matched with a toothed plate, a plurality of clamping seats move on a linear sliding groove, so that the side edge of a workpiece is clamped and positioned, and clamping plates downwards press the workpiece through rotation of a lead screw; the workpiece is stably positioned in the medium-frequency quenching process, and the medium-frequency quenching quality and the quenching effect of the workpiece are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of quenching machine tools, in particular to a positioning tool for a medium frequency quenching machine tool. Background Art

[0002] Induction heating medium frequency quenching is a metal heat treatment method. Its basic principle is to put the metal workpiece into an induction coil, and then pass medium frequency alternating current into the induction coil to generate an alternating electromagnetic field, thereby inducing an alternating current inside the metal workpiece to achieve the purpose of quenching. Medium frequency quenching has many advantages, such as fast heating speed, less oxidation, low energy consumption, small deformation, easy to realize automation, etc. At the same time, medium frequency quenching can also achieve local quenching, improve the wear resistance and fatigue strength of the workpiece, and extend the service life.

[0003] The medium frequency quenching machine is equipped with a positioning tool. After each workpiece is replaced, the workpiece needs to be positioned. During the medium frequency quenching process, the stability of the workpiece clamping and positioning affects the quality and effect of quenching. Stable clamping can reduce the stress and deformation generated during the quenching process of the workpiece and improve the dimensional accuracy and surface quality of the workpiece.

[0004] The Chinese utility model patent with the patent number CN202022700806.5 discloses a positioning fixture for a medium-frequency quenching machine tool for flange assembly production, including a base, a servo motor is fixedly installed vertically upward in the middle position of the bottom of the base, and the driving end of the servo motor is fixedly connected to a driving gear. Three equidistantly distributed rectangular openings are vertically opened on the upper part of the base, and a clamping column is movably inserted in the inner cavity of the rectangular opening. A positioning gear column is installed vertically upward in the middle position of the upper part of the base. Although the clamping column of the above structure has the effect of clamping and positioning the workpiece, it only clamps the side of the workpiece, and it is difficult to clamp the workpiece up and down. Compared with the positioning fixture that clamps the top and bottom and the side of the workpiece together, the stability of the workpiece positioning is poor. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the inventors conducted in-depth research and completed the present utility model after paying a lot of creative work.

[0006] Specifically, the technical problem to be solved by the utility model is to provide a medium frequency quenching machine positioning fixture to solve the technical problems that the current medium frequency quenching machine positioning fixture is difficult to clamp the workpiece at the top, bottom and sides at the same time, and the workpiece clamping stability is poor.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] A positioning tool for a medium frequency quenching machine tool, comprising a workbench, a plurality of linear slideways are provided on the workbench in a circular array, a clamping seat is provided in the linear slideway, and a rotary positioning component is provided at the bottom of the workbench;

[0009] The rotary positioning assembly includes a central shaft, the central shaft is provided with a plurality of tooth plates in a ring array, the central shaft is movably connected to the center position of the top of the workbench, and a rotary motor for driving the central shaft to rotate is provided below the workbench;

[0010] A lifting cavity is provided in the clamping seat, and two groups of first clamping plates and two groups of second clamping plates are installed on opposite sides of the clamping seat, the two groups of first clamping plates are fitted with the upper end surface of the workbench, and the two groups of second clamping plates are fitted with the lower end surface of the workbench. An upper and lower clamping assembly is provided in the lifting cavity, and the upper and lower clamping assemblies include a screw rod, a clamping plate is provided on the top of the clamping seat, a sliding seat is installed on the screw rod, a sliding rod is connected to the top of the screw rod, the top of the sliding rod slides through the top of the clamping seat, the top of the sliding rod is connected to the clamping plate, a gear is coaxially installed at the bottom of the screw rod, and a lifting motor for driving the screw rod to rotate is installed at the bottom of the clamping seat, and the gear is meshed with the gear plate.

[0011] As an improved technical solution, the cross-section of the lifting chamber is a square structure, and the outer wall of the sliding seat is in contact with the inner wall of the lifting chamber.

[0012] As an improved technical solution, the gear is fixedly connected to the screw rod, and the opposite side of the gear protrudes out of the lifting cavity.

[0013] As an improved technical solution, a T-shaped slider is installed at one end of the bottom of the tooth plate away from the central axis, and an arc-shaped slide groove is opened on the top of the workbench. The cross-section of the arc-shaped slide groove is a T-shaped structure, and the T-shaped slider is limited to slide in the arc-shaped slide groove.

[0014] As an improved technical solution, the tooth plate is rotated to be parallel to the linear slide groove, or the tooth plate is rotated to a position away from the linear slide groove.

[0015] As an improved technical solution, a collecting cylinder is arranged below the workbench, a plurality of supporting columns are installed between the bottom of the workbench and the collecting cylinder, a supporting seat is installed at the center of the collecting cylinder, and the rotating motor is installed on the top of the supporting seat.

[0016] As an improved technical solution, a plurality of notches are provided on the workbench in a circular array, and the notches are located between two adjacent linear slide grooves.

[0017] After adopting the above technical solution, the beneficial effects of the utility model are:

[0018] (1) By setting up upper and lower clamping components and rotating positioning components, and utilizing the cooperation between gears and toothed plates, a number of clamping seats can be moved on the linear slide to achieve side clamping and positioning of the workpiece. By rotating the screw, the clamping plate can press the workpiece downward, thus achieving stable positioning of the workpiece during medium frequency quenching and improving the medium frequency quenching quality and quenching effect of the workpiece.

[0019] (2) Each group of clamping plates can be controlled to press the workpiece individually, and several groups of clamping seats can be used to clamp the workpiece individually, which can adapt to the quenching positioning of special-shaped workpieces. By setting the notch and collection tube of the workbench to improve the quenching and cooling of the workpiece, it is convenient for the cooling water to flow down and be collected. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0021] Figure 1 It is a front view structural schematic diagram of the positioning tooling of the medium frequency quenching machine tool of the utility model.

[0022] Figure 2 The utility model is a schematic diagram of the installation structure of the upper and lower clamping components of the positioning tooling of the medium frequency quenching machine tool.

[0023] Figure 3 It is a schematic diagram of the structure of the upper and lower clamping components of the positioning tooling of the medium frequency quenching machine tool of the utility model.

[0024] Figure 4 The utility model is a schematic diagram of the bottom structure of the workbench of the medium frequency quenching machine positioning tool.

[0025] Figure 5 The utility model is a schematic diagram of the structure of the rotary positioning component of the medium frequency quenching machine positioning tool.

[0026] Description of reference numerals:

[0027] 1. Workbench; 11. Linear slide; 12. Arc slide; 13. Notch;

[0028] 2. Clamping seat; 21. Lifting chamber; 22. First clamping plate; 23. Second clamping plate;

[0029] 3. Upper and lower clamping components; 31. Clamping plate; 32. Screw rod; 33. Sliding seat; 34. Sliding rod; 35. Gear; 36. Lifting motor;

[0030] 4. Rotation positioning assembly; 41. Center axis; 42. Tooth plate; 43. T-type slide block;

[0031] 5. Collection tube; 51. Support column; 52. Support seat;

[0032] 6. Rotating motor. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0036] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0037] like Figures 1 to 5 As shown together, this embodiment provides a positioning tool for a medium frequency quenching machine, including a workbench 1, on which a plurality of linear slide grooves 11 are arranged in a circular array, a clamping seat 2 is arranged in the linear slide groove 11, and a rotating positioning component 4 is arranged at the bottom of the workbench 1.

[0038] The rotary positioning assembly 4 includes a central shaft 41 , on which a plurality of tooth plates 42 are installed in a ring array. The central shaft 41 is movably connected to the center position of the top of the workbench 1 , and a rotary motor 6 for driving the central shaft 41 to rotate is arranged under the workbench 1 .

[0039] A lifting chamber 21 is provided in the clamping seat 2, and two groups of first clamping plates 22 and two groups of second clamping plates 23 are installed on opposite sides of the clamping seat 2. The two groups of first clamping plates 22 are fitted with the upper end surface of the workbench 1, and the two groups of second clamping plates 23 are fitted with the lower end surface of the workbench 1. An upper and lower clamping assembly 3 is provided in the lifting chamber 21, and the upper and lower clamping assembly 3 includes a screw rod 32. A clamping plate 31 is provided on the top of the clamping seat 2, and a sliding seat 33 is installed on the screw rod 32. A sliding rod 34 is connected to the top of the screw rod 32, and the top of the sliding rod 34 slides through the top of the clamping seat 2. The top of the sliding rod 34 is connected to the clamping plate 31, and a gear 35 is coaxially installed at the bottom of the screw rod 32. A lifting motor 36 for driving the screw rod 32 to rotate is installed at the bottom of the clamping seat 2, and the gear 35 is meshed with the tooth plate 42.

[0040] By controlling the rotation motor 6 to start, the central shaft 41 is driven to rotate, so that the plurality of tooth plates 42 rotate to be parallel to the corresponding linear slide groove 11. At this time, the tooth plates 42 are in meshing with the gear 35. In this state, by controlling the lifting motor 36 to start, the screw rod 32 rotates, and the gear 35 also rotates accordingly. At this time, the slide 33 is in a state of moving from bottom to top, and the gear 35 is meshed with the tooth plate 42, so that the clamping seat 2 moves along the linear slide groove 11 toward the center of the worktable 1, thereby achieving side clamping of the workpiece; then the rotation motor 6 is turned on. 6 controls the tooth plate 42 to rotate away from the linear slide groove 11, and the tooth plate 42 is separated from the gear 35. At this time, the lifting motor 36 controls the screw rod 32 to rotate, so that the slide seat 33 moves vertically downward until the clamping plate 31 is pressed on the top of the workpiece to achieve the upper and lower clamping and positioning of the workpiece. At this time, the rotation motor 6 is controlled to rotate again, so that the tooth plate 42 rotates to mesh with the gear 35 to complete the position of the clamping seat 2, thereby achieving stable clamping of the side and upper and lower sides of the workpiece, improving the stability of the workpiece during the medium frequency quenching process, and then improving the quenching quality and effect of the workpiece.

[0041] like Figure 3 and Figure 4 As shown, the cross section of the lifting chamber 21 is a square structure, the outer wall of the slide 33 is in contact with the inner wall of the lifting chamber 21 , the slide 33 is limited in the lifting chamber 21 , and the slide 33 moves vertically in the lifting chamber 21 .

[0042] The gear 35 is fixedly connected to the screw rod 32 , and the opposite side of the gear 35 protrudes out of the lifting chamber 21 . The gear 35 and the screw rod 32 rotate simultaneously, and the gear 35 protrudes out of the lifting chamber 21 to cooperate with the toothed plate 42 .

[0043] like Figure 4 and Figure 5As shown, a T-shaped slider 43 is installed at one end of the bottom of the tooth plate 42 away from the central axis 41, and an arc-shaped slide groove 12 is opened on the top of the workbench 1. The cross-section of the arc-shaped slide groove 12 is a T-shaped structure. The T-shaped slider 43 is limited to slide in the arc-shaped slide groove 12, and the T-shaped slider 43 slides in the arc-shaped slide groove 12 to ensure that the T-shaped slider 43 fits with the lower end surface of the workbench 1 during the sliding process.

[0044] like Figure 4 and Figure 5 As shown, the tooth plate 42 rotates to be parallel to the linear slide groove 11, or the tooth plate 42 rotates to a position away from the linear slide groove 11. When the tooth plate 42 rotates to be parallel to the linear slide groove 11, the tooth plate 42 and the gear 35 are just meshed together. When the tooth plate 42 rotates away from the linear slide groove 11, the tooth plate 42 and the gear 35 are separated.

[0045] like Figure 1 and Figure 4 As shown, a collecting cylinder 5 is arranged below the workbench 1, and the collecting cylinder 5 is arranged to collect waste water after quenching and cooling. A plurality of supporting columns 51 are installed between the bottom of the workbench 1 and the collecting cylinder 5, and the supporting columns 51 are used to locate the position of the workbench 1. A supporting seat 52 is installed at the center of the collecting cylinder 5, and the supporting seat 52 is used to locate the position of the rotating motor 6. The rotating motor 6 is installed on the top of the supporting seat 52. A plurality of notches 13 are opened on the workbench 1 in a circular array, such as Figure 1 and Figure 4 As shown, the notch 13 is provided to facilitate the downstream flow of quenching cooling water, and the notch 13 is located between two adjacent linear slide grooves 11 .

[0046] Through the cooperation of the rotating positioning component 4 and the upper and lower clamping components 3, the workpiece is clamped between the workbench 1 and a plurality of clamping plates 31, each clamping plate 31 works independently, and the workpiece is clamped between a plurality of clamping seats 2. The movement of each clamping seat 2 is controlled independently, which is convenient for adapting to the clamping of special-shaped workpieces. At the same time, during the quenching and cooling process of the workpiece, the structure of the workbench 1 is designed to facilitate waterproof protection of the lifting motor 36 and the rotating motor 6, and to facilitate the downstream and collection of quenching cooling water.

[0047] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A positioning tool for a medium frequency quenching machine tool, characterized in that: It comprises a workbench (1), wherein a plurality of linear slide grooves (11) are provided in a circular array on the workbench (1), a clamping seat (2) is provided in the linear slide groove (11), and a rotation positioning component (4) is provided at the bottom of the workbench (1); The rotary positioning assembly (4) comprises a central shaft (41), the central shaft (41) being provided with a plurality of tooth plates (42) in a ring array, the central shaft (41) being movably connected to the center position of the top of the workbench (1), and a rotary motor (6) for driving the central shaft (41) to rotate is provided below the workbench (1); The clamping seat (2) is provided with a lifting chamber (21), and two groups of first clamping plates (22) and two groups of second clamping plates (23) are installed on opposite sides of the clamping seat (2), the two groups of first clamping plates (22) are in contact with the upper end surface of the workbench (1), and the two groups of second clamping plates (23) are in contact with the lower end surface of the workbench (1), and the lifting chamber (21) is provided with an upper and lower clamping assembly (3), and the upper and lower clamping assembly (3) includes a screw rod (32). The clamping seat (2) is provided with a clamping plate (31) on the top. ), a sliding seat (33) is installed on the screw rod (32), a sliding rod (34) is connected to the top of the screw rod (32), the top of the sliding rod (34) slides through to the top of the clamping seat (2), the top of the sliding rod (34) is connected to the clamping plate (31), a gear (35) is coaxially installed at the bottom of the screw rod (32), a lifting motor (36) for driving the screw rod (32) to rotate is installed at the bottom of the clamping seat (2), and the gear (35) is meshed with the toothed plate (42).

2. The medium frequency quenching machine positioning fixture according to claim 1 is characterized in that: The cross-section of the lifting chamber (21) is a square structure, and the outer wall of the sliding seat (33) fits the inner wall of the lifting chamber (21).

3. The positioning fixture for medium frequency quenching machine tool according to claim 2 is characterized in that: The gear (35) is fixedly connected to the screw rod (32), and the opposite side of the gear (35) protrudes out of the lifting chamber (21).

4. The positioning fixture for medium frequency quenching machine tool according to claim 3 is characterized in that: A T-shaped slide block (43) is installed at one end of the bottom of the tooth plate (42) away from the central axis (41), and an arc-shaped slide groove (12) is provided on the top of the workbench (1). The cross section of the arc-shaped slide groove (12) is a T-shaped structure, and the T-shaped slide block (43) is limited to slide in the arc-shaped slide groove (12).

5. The positioning fixture for medium frequency quenching machine tool according to claim 4, characterized in that: The tooth plate (42) rotates to be parallel to the linear slide groove (11), or the tooth plate (42) rotates to a position away from the linear slide groove (11).

6. The positioning fixture for medium frequency quenching machine tool according to claim 5, characterized in that: A collecting cylinder (5) is arranged below the workbench (1), a plurality of supporting columns (51) are installed between the bottom of the workbench (1) and the collecting cylinder (5), a supporting seat (52) is installed at the center of the collecting cylinder (5), and the rotating motor (6) is installed on the top of the supporting seat (52).

7. The positioning fixture for medium frequency quenching machine tool according to claim 6, characterized in that: The workbench (1) is provided with a plurality of notches (13) in a circular array, and the notches (13) are located between two adjacent linear slide grooves (11).

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