Double-station turret positioning detection system of machine tool

Abstract

The utility model relates to a machine tool double-station turret positioning detection system, which belongs to the technical field of machine tool equipment, and comprises a first induction point, a second induction point, a third induction point and a fourth induction point which are arranged on a turret turntable and are arranged clockwise, and the corresponding central angle between the fourth induction point and the third induction point is alpha, a corresponding central angle between the third induction point and the second induction point is beta, beta is less than alpha, and a corresponding central angle between the first induction point and the fourth induction point is gamma = 180 degrees + beta; a C1 machining position inductive switch and a C2 machining position inductive switch are arranged on the machine tool rack in the circumferential direction corresponding to the rotary disc, and the corresponding central angle between the C1 machining position inductive switch and the C2 machining position inductive switch is beta. Positioning of three positions is completed through the two switches and the four induction points, and the structure is simple and reliable.

Description

Technical Field

[0001] The utility model belongs to the technical field of machine tool equipment and relates to a double-station turret positioning detection system for a machine tool. Background Art

[0002] The double-station gear grinding machine is a high-efficiency, high-precision gear grinding equipment, mainly used for processing and grinding gears on the production line. The double-station rotation of the double-station gear grinding machine is driven by a servo motor plus a cycloidal reducer, and a high-precision end face gear disc plus a hydraulic floating tensioning device are used to perform high-precision positioning and locking of the worktable exchange. The existing positioning detection system for detecting the position of the end face gear disc adopts contact detection, and each detection position corresponds to an independent detection switch, which has the following defects: Since the detection switch adopts a contact switch, the collision block that acts on the contact switch is an independent part, so there is an assembly error between the collision block and the turret turntable, and the contact area of ​​the collision block is large, resulting in low positioning accuracy; each detection position corresponds to an independent detection switch, the number of switches is large, and the structure is complex. Utility Model Content

[0003] In view of this, the purpose of the present application is to provide a machine tool double-station turret positioning detection system to improve the accuracy of the positioning detection system.

[0004] In order to achieve the above object, the utility model provides the following technical solutions:

[0005] The machine tool double-station turret positioning detection system includes a first sensing point, a second sensing point, a third sensing point and a fourth sensing point arranged on the turret turntable and arranged clockwise, the corresponding center angle between the fourth sensing point and the third sensing point is α, the corresponding center angle between the third sensing point and the second sensing point is β, β<α, and the corresponding center angle between the first sensing point and the fourth sensing point is γ=180°+β; a C1 processing position sensing switch and a C2 processing position sensing switch are arranged in the circumference of the corresponding turntable of the machine tool frame, and the C1 processing position sensing switch and the C2 processing position sensing switch correspond to each other. The central angle of the circle is β, when the fourth sensing point is transferred to the radial position where the C1 processing position sensing switch is located, the C1 processing position sensing switch is triggered to realize the positioning detection of the C1 processing position; when the third sensing point and the second sensing point are transferred to the radial position where the C1 processing position sensing switch is located and the radial position where the C2 processing position sensing switch is located respectively, the C1 processing position sensing switch and the C2 processing position sensing switch are triggered respectively to realize the positioning detection of the finishing station; when the first sensing point is transferred to the radial position where the C2 processing position sensing switch is located, the C2 processing position sensing switch is triggered to realize the positioning detection of the C2 processing position.

[0006] Optionally, the first sensing point, the second sensing point, the third sensing point and the fourth sensing point are all protruding structures arranged on the circumferential surface of the turntable, and the C1 processing position sensing switch and the C2 processing position sensing switch are proximity switches.

[0007] Optionally, the protruding structure is radially symmetrical about the rotating disk and has a large and a small end, wherein the end close to the rotating disk is the large end and the other end is the small end.

[0008] Optionally, the protruding structure is in the shape of an isosceles trapezoid.

[0009] Optionally, the protrusion structure and the turntable are an integrated structure.

[0010] Optionally, α=82°.

[0011] Optionally, the C1 processing position sensing switch and the C2 processing position sensing switch are installed on a switch plate, and the switch plate is fixedly connected to the machine tool frame.

[0012] Optionally, it also includes an upper position switch for detecting that the turret has risen into position, the upper position switch is located between the C1 processing position sensing switch and the C2 processing position sensing switch, the upper position switch, the C1 processing position sensing switch and the C2 processing position sensing switch share a switch board, and the switch board is fixedly connected to the machine tool frame.

[0013] Optionally, a down-to-position switch for detecting that the turret has been lowered into position is also included, and the down-to-position switch is located on the inner side of the turntable.

[0014] Optionally, the C1 processing position sensing switch and the C2 processing position sensing switch are distributed on the same circumference concentric with the turntable, and the C1 processing position sensing switch is set corresponding to the C1 processing position of the turret.

[0015] The beneficial effects of the utility model are:

[0016] 1. When only the C1 processing position sensing switch is triggered by the fourth sensing point, it is the C1 processing position; when the C1 processing position sensing switch and the C2 processing position sensing switch are triggered by the third sensing point and the second sensing point respectively, it is the finishing position; when only the C2 processing position sensing switch is triggered by the first sensing point, it is the C2 processing position. The positioning of three positions is achieved through two switches and four sensing points, and the structure is simple and reliable.

[0017] 2. The first sensing point, the second sensing point, the third sensing point, and the fourth sensing point are finely processed on the same part turntable, so the position is more precise, thereby improving the positioning accuracy.

[0018] 3. The first sensing point, the second sensing point, the third sensing point and the fourth sensing point have large and small ends, and the small end senses the sensing switch, so the sensing is more accurate, thereby further improving the positioning accuracy.

[0019] 4. The lower position switch is located in the middle of the inner side of the turret, and the sensing is more sensitive and accurate, avoiding the situation where the turret is tilted due to the large diameter of the part when it is installed on the outside and the sensor cannot be sensed or misjudged.

[0020] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0022] Figure 1 It is a schematic diagram of the position of the turret positioning detection system;

[0023] Figure 2 It is a structural schematic diagram of the turret positioning detection system;

[0024] Figure 3 The top view of the turret positioning detection system after the annular plate is hidden;

[0025] Figure 4 It is a structural diagram of the turntable sensing point;

[0026] Figure 5 It is the front view of the turret positioning detection system;

[0027] Figure 6 This is a bottom view of the turret positioning detection system.

[0028] Figure numerals: turntable 1, annular pad 2, annular plate 3, first switch frame 4, C1 processing position sensing switch 5, upper position switch 6, second switch frame 7, C2 processing position sensing switch 8, third switch frame 9, first screw 10, second screw 11, switch plate 12, fourth switch frame 13, switch seat 14, third screw 15, fourth screw 16, lower position switch 17, fifth screw 18, first sensing point 19, second sensing point 20, third sensing point 21, fourth sensing point 22. DETAILED DESCRIPTION

[0029] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0030] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present utility model. In order to better illustrate the embodiments of the present utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0031] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0032] See also Figure 1 to Figure 6The machine tool double-station turret positioning detection system includes a first sensing point 19, a second sensing point 20, a third sensing point 21 and a fourth sensing point 22 which are arranged on the turret turntable 1 and are arranged clockwise. The corresponding center angle between the fourth sensing point 22 and the third sensing point 21 is α, the corresponding center angle between the third sensing point 21 and the second sensing point 20 is β, β<α, and the corresponding center angle between the first sensing point 19 and the fourth sensing point 22 is γ=180°+β; the machine tool frame is provided with a C1 processing position sensing switch 5 and a C2 processing position sensing switch 8 in the circumferential direction of the turntable 1, and the C1 processing position sensing switch 5 and the C2 processing position sensing switch 8 are arranged on the circumference of the turntable 1. 8 corresponds to a central angle β, when the fourth sensing point 22 rotates to the radial position where the C1 processing position sensing switch 5 is located, the C1 processing position sensing switch 5 is triggered to realize the positioning detection of the C1 processing position; when the third sensing point 21 and the second sensing point 20 rotate to the radial position where the C1 processing position sensing switch 5 is located and the radial position where the C2 processing position sensing switch 8 is located, they trigger the C1 processing position sensing switch 5 and the C2 processing position sensing switch 8 respectively to realize the positioning detection of the finishing station; when the first sensing point 19 rotates to the radial position where the C2 processing position sensing switch 8 is located, it triggers the C2 processing position sensing switch 8 to realize the positioning detection of the C2 processing position.

[0033] The utility model realizes the positioning detection of three positions through two switches and four sensing points: when only the C1 processing position sensing switch is triggered by the fourth sensing point, it is the C1 processing position; when the C1 processing position sensing switch and the C2 processing position sensing switch are simultaneously triggered by the third sensing point and the second sensing point respectively, it is the finishing position; when only the C2 processing position sensing switch is triggered by the first sensing point, it is the C2 processing position. The turret positioning detection system of the utility model has a simple structure and reliable positioning detection.

[0034] Optionally, the first sensing point 19, the second sensing point 20, the third sensing point 21 and the fourth sensing point 22 are all protruding structures arranged on the circumferential surface of the turntable 1, and the C1 processing position sensing switch 5 and the C2 processing position sensing switch 8 are proximity switches; the protruding structure is radially symmetrical about the turntable 1 and has a large and a small end, the end close to the turntable 1 is the large end, and the other end is the small end; the protruding structure is an isosceles trapezoid; the protruding structure and the turntable 1 are an integral structure; α is an acute angle; α=82°; the C1 processing position sensing switch 5 and the C2 processing position sensing switch 8 are installed on the switch plate 12, and the switch plate 12 is fixed to the machine tool frame A fixed connection, preferably a detachable connection; it also includes an upper position switch 6 for detecting that the turret has risen to its position, the upper position switch 6 is located between the C1 processing position sensing switch 5 and the C2 processing position sensing switch 8, and the upper position switch 6, the C1 processing position sensing switch 5 and the C2 processing position sensing switch 8 share a switch plate 12; it also includes a lower position switch 17 for detecting that the turret has descended to its position, and the lower position switch 17 is located on the inner side of the turntable 1; the C1 processing position sensing switch 5 and the C2 processing position sensing switch 8 are distributed on the same circumference concentric with the turntable, and the C1 processing position sensing switch 5 is set corresponding to the C1 processing position of the turret.

[0035] Example

[0036] Machine tool double-station turret positioning detection system, such as Figure 1 to Figure 6As shown, the figure shows a turntable 1, an annular pad 2, an annular plate 3, a first switch frame 4, a C1 processing position induction switch 5, an upper position switch 6, a second switch frame 7, a C2 processing position induction switch 8, a third switch frame 9, a first screw 10, a second screw 11, a switch plate 12, a fourth switch frame 13, a switch seat 14, a third screw 15, a fourth screw 16, a lower position switch 17, a fifth screw 18, a first induction point 19, a second induction point 20, a third induction point 21, and a fourth induction point 22. The turret includes a turntable 1, an annular pad 2, and an annular plate 3 arranged sequentially from bottom to top, and the annular plate 3 is a four-part structure. The turntable 1, the annular pad 2, and the annular plate 3 are sequentially stacked and connected as a whole through 8 fifth screws 18. The turntable 1 is provided with a first sensing point 19, a second sensing point 20, a third sensing point 21 and a fourth sensing point 22 arranged in a clockwise manner, and the four sensing points are all convex structures arranged on the circumferential surface of the turntable 1, and the convex structure is an isosceles trapezoid, and the end close to the turntable 1 is the large end, and the other end is the small end, and the small end is more accurately sensed by the sensing switch; the four sensing points are finely processed on the same part turntable 1, so the position is more accurate. The corresponding center angle between the fourth sensing point 22 and the third sensing point 21 is α=82°, the corresponding center angle between the third sensing point 21 and the second sensing point 20 is β, β<α, and the corresponding center angle between the first sensing point 19 and the fourth sensing point 22 is γ=180°+β. The machine tool frame is provided with a C1 processing position induction switch 5, an upper processing position induction switch 6, and a C2 processing position induction switch 8 in the circumferential direction of the corresponding turntable 1. The corresponding central angle between the C1 processing position induction switch 5 and the C2 processing position induction switch 8 is β, and the upper processing position induction switch 6 is located between the C1 processing position induction switch 5 and the C2 processing position induction switch 8. The upper processing position induction switch 6, the C1 processing position induction switch 5, and the C2 processing position induction switch 8 share a switch plate 12. Specifically, the switch plate 12 is fixedly connected to the machine tool frame by two second screws 11. The upper processing position induction switch 6 is installed on the second switch frame 7, the C1 processing position induction switch 5 is installed on the first switch frame 4, and the C2 processing position induction switch 8 is installed on the third switch frame 9. The second switch frame 7, the first switch frame 4, and the third switch frame 9 are all installed on the switch plate 12 by two first screws 10. The down-to-position switch 17 is located on the inner side of the turntable 1. It can be installed on the outer side. Due to the large diameter of the parts, the turret is tilted and the induction is not possible or misjudged. It is preferred that the down-to-position switch 17 is located on the center line of the turret. The down-to-position switch 1 is placed in the middle of the turret for more sensitive and accurate sensing. The down-to-position switch 17 is installed on the fourth switch frame 13. The fourth switch frame 13 is installed on the switch seat 14 through two fourth screws 16. The switch seat 14 is installed on the fixed bracket through two third screws 15. The fixed bracket and the machine tool frame are connected in an open and disassembled fixed manner.

[0037] There are three steps when the turret adjusts its rotation angle: rising, rotating, and falling.

[0038] After the turret rises, the outer circle of the turret drive disk senses the upper position switch 6, and the motor drives the turret (including the turntable 1, the annular pad 2, and the annular plate 3) to rotate; when the turret descends, the outer circle of the turret drive disk senses the lower position switch 17, and for the three positions of C1 processing position (0°), finishing position (82°), and C2 processing position (180°), the four sensing points on the turntable 1 have three corresponding situations:

[0039] a. At the C1 processing position (0°), the fourth sensing point 22 senses the C1 processing position sensing switch 5;

[0040] b. At the trimming station (82°), the third sensing point 21 senses the C1 processing position sensing switch 5, and the second sensing point 20 senses the C2 processing position sensing switch 8 (using two-point simultaneous sensing can reduce the number of sensing switches);

[0041] c. At the C2 processing position (180°), the first sensing point 19 senses the C2 processing position sensing switch 8.

[0042] The utility model of the machine tool double-station turret positioning detection system is suitable for double-station gear grinding machines and is used for position detection of the turret rotating to the C1 processing position (0°), the finishing position (82°), and the C2 processing position (180°). The rotation of the double-station is driven by a servo motor plus a cycloid reducer, and a high-precision end face gear disc plus a hydraulic floating tensioning device are used to perform high-precision positioning and locking of the worktable exchange. The utility model positioning detection system is connected to the control system of the machine tool, and can detect the end face gear disc positioning and feedback signals.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. The machine tool double-station turret positioning detection system is characterized by: The invention comprises a first sensing point (19), a second sensing point (20), a third sensing point (21) and a fourth sensing point (22) which are arranged on a turret turntable (1) and arranged in a clockwise direction, wherein the corresponding center angle between the fourth sensing point (22) and the third sensing point (21) is α, the corresponding center angle between the third sensing point (21) and the second sensing point (20) is β, β<α, and the corresponding center angle between the first sensing point (19) and the fourth sensing point (22) is γ=180°+β; a C1 processing position sensing switch (5) and a C2 processing position sensing switch (8) are arranged on the circumference of the turntable (1) of the machine tool frame, and the C1 processing position sensing switch (5) and the C2 processing position sensing switch (8) are arranged between the C1 processing position sensing switch (5) and the C2 processing position sensing switch (8). The corresponding center angle is β. When the fourth sensing point (22) is rotated to the radial position where the C1 processing position sensing switch (5) is located, the C1 processing position sensing switch (5) is triggered to realize the positioning detection of the C1 processing position; when the third sensing point (21) and the second sensing point (20) are simultaneously rotated to the radial position where the C1 processing position sensing switch (5) is located and the radial position where the C2 processing position sensing switch (8) is located, they are simultaneously triggered respectively to realize the positioning detection of the finishing station; when the first sensing point (19) is rotated to the radial position where the C2 processing position sensing switch (8) is located, the C2 processing position sensing switch (8) is triggered to realize the positioning detection of the C2 processing position.

2. The machine tool double-station turret positioning detection system according to claim 1 is characterized in that: The first sensing point (19), the second sensing point (20), the third sensing point (21) and the fourth sensing point (22) are all protruding structures arranged on the circumferential surface of the rotating disk (1).

3. The machine tool double-station turret positioning detection system according to claim 2 is characterized in that: The protruding structure is symmetrical with respect to the radial direction of the rotating disk (1) and has a large and a small end, wherein the end close to the rotating disk (1) is the large end and the other end is the small end.

4. The machine tool double-station turret positioning detection system according to claim 3 is characterized in that: The raised structure is an isosceles trapezoid.

5. The machine tool double-station turret positioning detection system according to claim 2, characterized in that: The protruding structure and the rotating disk (1) are an integrated structure.

6. The machine tool double-station turret positioning detection system according to claim 1, characterized in that: α＝82°。 7. The machine tool double-station turret positioning detection system according to claim 1, characterized in that: The C1 processing position sensing switch (5) and the C2 processing position sensing switch (8) are installed on a switch plate (12), and the switch plate (12) is fixedly connected to a machine tool frame.

8. The machine tool double-station turret positioning detection system according to claim 1, characterized in that: The invention also comprises an upper position switch (6) for detecting that the turret has risen to its position, the upper position switch (6) being located between the C1 processing position sensing switch (5) and the C2 processing position sensing switch (8), the upper position switch (6), the C1 processing position sensing switch (5) and the C2 processing position sensing switch (8) sharing a switch board (12), and the switch board (12) being fixedly connected to a machine tool frame.

9. The machine tool double-station turret positioning detection system according to claim 1, characterized in that: It also comprises a down-to-position switch (17) for detecting that the turret has been lowered into position, and the down-to-position switch (17) is located on the inner side of the rotating disk (1).

10. The machine tool double-station turret positioning detection system according to claim 1, characterized in that: The C1 processing position sensing switch (5) and the C2 processing position sensing switch (8) are distributed on the same circumference concentric with the turntable, and the C1 processing position sensing switch (5) is set corresponding to the C1 processing position of the turret.

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