Two-dimensional grinding motion platform

Abstract

The utility model relates to the technical field of grinding platforms, and provides a two-dimensional grinding motion platform which comprises a moving seat, a first driving mechanism, a grinding table and a locker, the first driving mechanism comprises a first motor and a first lead screw, and the first motor is fixedly arranged on the moving seat; the first screw rod is rotationally arranged on the moving seat, and is coaxially and fixedly connected with the output end of the first motor; the grinding table is arranged on the moving seat in a sliding manner and is connected with the first lead screw in a threaded fit manner; the locker is fixedly arranged on the movable seat and selectively abuts against and fixes the first lead screw. By arranging the locker, when the first driving mechanism drives the grinding table and the workpiece to move to a grinding position, the locker can be used for locking and fixing the first lead screw, so that the first lead screw is prevented from rotating due to other influences, and the grinding precision of the workpiece is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding platforms, in particular to a two-dimensional grinding motion platform. Background Technique

[0002] The two-dimensional grinding motion platform is an important part of the grinding equipment and plays a role in fixing and moving the workpiece. After the workpiece is installed on the two-dimensional grinding motion platform, the two-dimensional grinding motion platform is used to drive it to move, and cooperate with the grinding disc of the grinding equipment, so as to realize grinding processes such as grinding the end face of the workpiece.

[0003] The utility model with the patent publication number CN217702677U discloses a platform for surface grinding; its structural layout is more scientific and reasonable, suitable for flat grinding processing of the end faces of large-volume workpieces, improving the grinding processing efficiency of the end faces of workpieces, realizing comprehensive grinding treatment of the end faces of workpieces, and effectively reducing the splashing of debris everywhere; it includes a mounting base, an X-axis feeding mechanism, a first Y-axis feeding mechanism and a second Y-axis feeding mechanism mounted on the X-axis feeding mechanism. The X-axis feeding mechanism includes a first feeding platform and a first driving mechanism that provides power for the first feeding platform to move left and right along the X-axis. The first Y-axis feeding mechanism includes a second feeding platform and a second driving mechanism that provides power for the second feeding platform to move back and forth along the Y-axis. The second Y-axis feeding mechanism includes a third feeding platform and a third driving mechanism that provides power for the third feeding platform to move back and forth along the Y-axis. A fixture is mounted on the second feeding platform.

[0004] In the above technical solution, in order to move the workpiece, a first driving mechanism composed of a lead screw and a driving motor is set. However, when the first driving mechanism drives the workpiece to move to the grinding position, the lead screw will rotate to a certain extent due to the vibration generated during the operation of the grinding mechanism, resulting in a certain offset of the workpiece and affecting the grinding accuracy of the workpiece. Content of the Utility Model

[0005] In view of this, the utility model provides a two-dimensional grinding motion platform, which can lock and fix the first lead screw when the workpiece moves to the grinding position, and improve the grinding accuracy of the workpiece.

[0006] The technical solution of the utility model is realized as follows: The utility model provides a two-dimensional grinding motion platform, which includes a moving seat, a first driving mechanism, a grinding table and a locking device. The first driving mechanism includes a first motor and a first lead screw. Among them,

[0007] The first motor is fixedly arranged on the moving seat;

[0008] The first lead screw is rotatably arranged on the moving seat and is coaxially and fixedly connected to the output end of the first motor;

[0009] The grinding table is slidably arranged on the moving seat and is connected to the first lead screw through a threaded fit.

[0010] The locking device is fixedly arranged on the moving seat and selectively abuts and fixes the first lead screw.

[0011] Based on the above technical solutions, preferably, the locking device includes a fixed seat and an abutting rod, wherein,

[0012] The fixed seat is fixedly arranged on the moving seat, and an installation hole and an air passage are formed inside it, wherein,

[0013] The first lead screw penetrates and is slidably arranged in the installation hole;

[0014] One end of the air passage is communicated with the installation hole, and the other end is communicated with the peripheral side of the fixed seat for communicating with an air supply device;

[0015] The abutting rod is hermetically and slidably arranged in the air passage and selectively abuts and fixes against the peripheral side of the first lead screw.

[0016] More preferably, there are two air passages, and the two air passages are symmetrically arranged about the center line of the installation hole, and one abutting rod is arranged in each air passage.

[0017] More preferably, the inner diameter of the installation hole is larger than the outer diameter of the first lead screw.

[0018] More preferably, the locking device further includes a rotating ring, a detection rod and a bolt, wherein,

[0019] The rotating ring is rotatably arranged on the fixed seat, and its rotation axis coincides with the center line of the installation hole, and the first lead screw penetrates the rotating ring;

[0020] One end of the detection rod is rotatably arranged on the rotating ring and selectively abuts the first lead screw;

[0021] The bolt is connected to the rotating ring through a threaded fit and is slidably connected to the detection rod, and the bolt selectively abuts and fixes the detection rod.

[0022] More preferably, the locking device further includes a spring, and the spring is fixedly arranged in the air passage;

[0023] The abutting rod has a T-shaped structure, one end of which selectively penetrates the spring, and the other end selectively abuts against the end of the spring away from the installation hole.

[0024] Based on the above technical solutions, preferably, the moving seat includes a base, a second driving mechanism and a moving frame. The second driving mechanism includes a second motor and a second lead screw. Among them,

[0025] the second motor is fixedly arranged on the base;

[0026] the second lead screw is rotatably arranged on the base, is coaxial and fixedly connected with the output shaft of the second motor, and the second lead screw is perpendicular to the first lead screw;

[0027] the moving frame is slidably arranged on the base and is in threaded fit connection with the second lead screw. The first motor, the first lead screw, the grinding table and the locking device are all arranged on the moving frame.

[0028] More preferably, a locking device is fixedly arranged on the base, and the locking device on the base selectively abuts and fixes the second lead screw.

[0029] More preferably, it further includes a limiting unit. The limiting unit includes a limit switch and a sliding block. Among them,

[0030] two of the limit switches are fixedly arranged on the base opposite to each other along the axial direction of the second lead screw, and two of the limit switches are fixedly arranged on the moving frame opposite to each other along the axial direction of the first lead screw;

[0031] one of the sliding blocks is fixedly arranged on the moving frame and the grinding table respectively, and the sliding block on the moving frame selectively abuts the two limit switches on the base, and the sliding block on the grinding table selectively abuts the two limit switches on the moving frame.

[0032] More preferably, it further includes a sliding assembly. The sliding assembly includes a slide rail and a slider. Among them,

[0033] the slide rails are respectively fixedly arranged on the base and the moving frame;

[0034] the sliders are respectively fixedly arranged on the moving frame and the grinding table, and the slider on the moving frame is slidably connected with the slide rail on the base, and the slider on the grinding table is slidably connected with the slide rail on the moving frame.

[0035] The two-dimensional grinding motion platform of the present utility model has the following beneficial effects compared with the prior art:

[0036] (1) By setting a locking device, when the first driving mechanism drives the grinding table and the workpiece to move to the grinding position, the locking device can be used to lock and fix the first lead screw, avoiding the rotation of the first lead screw due to other influences, thereby ensuring the grinding accuracy of the workpiece;

[0037] (2) By setting a swivel ring, a detection rod and a bolt, and using their cooperation, the installation position of the locking device and the lead screw can be corrected to improve the uniformity of the abutment of the locking device against the lead screw;

[0038] (3) By setting a limiting unit, the moving range of the moving frame and the grinding table can be restricted to avoid collision with other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] 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 use in 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 be obtained based on these drawings.

[0040] Figure 1 It is a three-dimensional view of a two-dimensional grinding motion platform of the present invention;

[0041] Figure 2 It is an exploded view of a two-dimensional grinding motion platform of the present invention;

[0042] Figure 3 It is a cross-sectional view of the locking device in a two-dimensional grinding motion platform of the present invention;

[0043] Figure 4 It is a front view of the use state of the locking device and the first lead screw in a two-dimensional grinding motion platform of the present invention;

[0044] Figure 5 It is a front view of the correction state of the locking device and the first lead screw in a two-dimensional grinding motion platform of the present invention.

[0045] Wherein: 1, moving base; 11, base; 12, second driving mechanism; 121, second motor; 122, second lead screw; 13, moving frame; 2, first driving mechanism; 21, first motor; 22, first lead screw; 3, grinding table; 4, locking device; 41, fixed seat; 42, abutting rod; 43, swivel ring; 44, detection rod; 45, bolt; 46, spring; 401, mounting hole; 402, air passage; 5, limiting unit; 51, limit switch; 52, sliding block; 6, sliding assembly; 61, slide rail; 62, slider. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0046] The technical solutions in the present utility model will be clearly and completely described below in conjunction with the specific embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0047] As Figures 1-5 shown, a two-dimensional grinding motion platform of the present utility model includes a moving seat 1, a first driving mechanism 2, a grinding table 3, a locking device 4, a limiting unit 5 and a sliding assembly 6.

[0048] Among them, the moving seat 1 is used to carry other components.

[0049] The first driving mechanism 2 is used to drive the grinding table 3 to move. The first driving mechanism 2 includes a first motor 21 and a first lead screw 22. Among them, the first motor 21 is fixedly arranged on the moving seat 1; the first lead screw 22 is rotatably arranged on the moving seat 1 and is coaxially and fixedly connected to the output end of the first motor 21; when the first motor 21 is started, the first lead screw 22 can be driven to rotate synchronously.

[0050] The grinding table 3 is used to fix the workpiece. The grinding table 3 is slidably arranged on the moving seat 1 and is in threaded engagement with the first lead screw 22. When the first lead screw 22 rotates, the grinding table 3 can be driven to slide on the moving seat 1, so as to move the workpiece to the grinding position. Exactly speaking, it is to move the position of the workpiece to be ground below the grinding disc.

[0051] The locking device 4 is used to lock the first lead screw 22. The locking device 4 is fixedly arranged on the moving seat 1 and selectively abuts and fixes the first lead screw 22. When the workpiece moves to the grinding position, the first lead screw 22 is abutted and fixed by the locking device 4, achieving the locking effect of the first lead screw 22 and avoiding the rotation of the first lead screw 22 due to the influence of the vibration of other components during operation, thereby improving the grinding accuracy of the workpiece.

[0052] The locking device 4 includes a fixed seat 41, a abutting rod 42, a rotating ring 43, a detecting rod 44, a bolt 45 and a spring 46, as Figure 1 and Figure 3As shown in the figure, the fixed seat 41 is fixedly arranged on the moving seat 1, and an installation hole 401 and an air duct 402 are formed inside it. Among them, the first lead screw 22 penetrates and is slidably arranged in the installation hole 401; one end of the air duct 402 is communicated with the installation hole 401, and the other end is communicated with the peripheral side of the fixed seat 41 for communicating with an air supply device; the abutting rod 42 is hermetically and slidably arranged in the air duct 402 and selectively abuts and fixes against the peripheral side of the first lead screw 22. When continuously supplying air to one end of the air duct 402 away from the installation hole 401 by using the air supply device, the abutting rod 42 can be pushed to slide, so that the abutting rod 42 abuts against the peripheral side of the first lead screw 22 to realize the locking and fixing of the first lead screw 22.

[0053] In order to improve the locking firmness of the first lead screw 22, it is preferably to provide two air ducts 402, and the two air ducts 402 are symmetrically arranged about the center line of the installation hole 401, and one abutting rod 42 is arranged in each air duct 402.

[0054] As Figure 3 shown, the inner diameter of the installation hole 401 should be greater than the outer diameter of the first lead screw 22 to avoid frictional loss between the first lead screw 22 and the fixed seat 41.

[0055] When the inner diameter of the installation hole 401 is greater than the outer diameter of the first lead screw 22, if the first lead screw 22 is not concentric with the installation hole 401, it is easy for the two abutting rods 42 to abut against the first lead screw 22 in a front-back form and cannot abut against it simultaneously. Over time, the first lead screw 22 will be bent.

[0056] As Figure 4 shown, the rotating ring 43 is rotatably arranged on the fixed seat 41, and its rotation axis coincides with the center line of the installation hole 401. The first lead screw 22 penetrates the rotating ring 43; one end of the detection rod 44 is rotatably arranged on the rotating ring 43 and selectively abuts against the first lead screw 22; the bolt 45 is connected to the rotating ring 43 by thread fit and is slidably connected to the detection rod 44, and the bolt 45 selectively abuts and fixes the detection rod 44, that is, when the bolt 45 is loosened, the detection rod 44 can be rotated to make it abut against the first lead screw 22, and when the bolt 45 is tightened, the detection rod 44 will be abutted and fixed; as Figure 5 shown, when the detection rod 44 abuts but does not abut against the first lead screw 22, tighten the bolt 45, and then slowly rotate the first lead screw 22 to make it rotate one circle. During this period, if the distance between the first lead screw 22 and the detection rod 44 does not change, it means that the first lead screw 22 is coaxially arranged with the installation hole 401. On the contrary, if the first lead screw 22 abuts against the detection rod 44 or even pushes it to displace during the rotation process, it means that the first lead screw 22 is not coaxially arranged with the installation hole 401, and the position of the fixed seat 41 needs to be adjusted.

[0057] The spring 46 is fixedly arranged in the air duct 402. Specifically, one end thereof close to the mounting hole 401 is fixed to the air duct 402; the abutting rod 42 has a T-shaped structure, or can be said to have a nail shape. One end thereof selectively penetrates through the spring 46, and the other end selectively abuts against the end of the spring 46 away from the mounting hole 401; as Figure 3 shown, this is the state where the air supply device supplies air into the air duct 402. At this time, one end of the abutting rod 42 penetrates through the spring 46 and abuts and fixes against the circumferential side of the first lead screw 22, while the other end of the abutting rod 42 abuts against the end of the spring 46 away from the first lead screw 22. If the air supply to the air duct 402 is cancelled, the elastic force of the spring 46 will push the abutting rod 42 to slide in a direction away from the first lead screw 22, so that the abutting rod 42 is separated from the first lead screw 22.

[0058] The moving seat 1 can also achieve the movement of the grinding table 3. As Figure 1 and Figure 2 shown, the moving seat 1 includes a base 11, a second driving mechanism 12 and a moving frame 13. The second driving mechanism 12 includes a second motor 121 and a second lead screw 122. Among them, the second motor 121 is fixedly arranged on the base 11; the second lead screw 122 is rotatably arranged on the base 11 and is coaxially and fixedly connected to the output shaft of the second motor 121. The moving frame 13 is slidably arranged on the base 11 and is connected to the second lead screw 122 through a threaded fit. The first motor 21, the first lead screw 22, the grinding table 3 and the lock 4 are all arranged on the moving frame 13. When the second motor 121 is started, it can drive the second lead screw 122 to rotate, thereby driving the moving frame 13 to slide. The second lead screw 122 is perpendicular to the first lead screw 22, so that the first motor 21 and the second motor 121 can drive the grinding table 3 to move along two mutually perpendicular directions respectively, so as to achieve the effect of moving the grinding table 3 and the workpiece to the required positions.

[0059] Similarly to the first driving mechanism 2, a lock 4 should also be arranged on the second driving mechanism 12, that is, a lock 4 is fixedly arranged on the base 11, and the lock 4 on the base 11 selectively abuts and fixes the second lead screw 122.

[0060] The limiting unit 5 is used to limit the moving range of the grinding table 3 to prevent it from colliding with other components. The limiting unit 5 includes a limit switch 51 and a sliding block 52. Among them, two limit switches 51 are relatively fixed along the axial direction of the second lead screw 122 on the base 11, and two limit switches 51 are relatively fixed along the axial direction of the first lead screw 22 on the moving frame 13; a sliding block 52 is fixedly arranged on the moving frame 13 and the grinding table 3 respectively, and the sliding block 52 on the moving frame 13 selectively abuts against the two limit switches 51 on the base 11, and the sliding block 52 on the grinding table 3 selectively abuts against the two limit switches 51 on the moving frame 13; the limit switch 51 can be electrically connected to devices such as a warning light and a buzzer. When the sliding block 52 abuts against the limit switch 51, the trigger circuit is turned on, so that the warning light and the buzzer work to prompt the operator to brake the first motor 21 or the second motor 121 in time.

[0061] The sliding assembly 6 is used to improve the moving stability of the moving frame 13 and the grinding table 3 and ensure the moving accuracy of the grinding motion platform. The sliding assembly 6 includes a slide rail 61 and a slider 62. Among them, the slide rails 61 are fixedly arranged on the base 11 and the moving frame 13 respectively; the sliders 62 are fixedly arranged on the moving frame 13 and the grinding table 3 respectively, and the slider 62 on the moving frame 13 is slidably connected to the slide rail 61 on the base 11, and the slider 62 on the grinding table 3 is slidably connected to the slide rail 61 on the moving frame 13, so that the moving of the moving frame 13 and the grinding table 3 is smoother.

[0062] The using method of a two-dimensional grinding motion platform of the present utility model is as follows:

[0063] First, fix the workpiece by using the holes on the surface of the grinding table 3 in cooperation with a fixture, then start the first motor 21 and the second motor 121 to move the workpiece below the grinding disc, and then supply air to one end of the air passage 402 away from the mounting hole 401 by using an air supply device, so as to move the grinding disc downward to the surface of the workpiece for grinding. After grinding is completed, reverse the above steps to remove the workpiece.

[0064] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A two-dimensional grinding motion platform, characterized in that: It comprises a movable seat (1), a first driving mechanism (2), a grinding table (3) and a locking device (4), wherein the first driving mechanism (2) comprises a first motor (21) and a first screw rod (22), wherein: The first motor (21) is fixedly arranged on the moving base (1); The first screw rod (22) is rotatably disposed on the moving seat (1) and is coaxially and fixedly connected to the output end of the first motor (21); The grinding table (3) is slidably arranged on the movable seat (1) and is connected to the first screw rod (22) through threaded engagement; The locking device (4) is fixedly arranged on the movable seat (1) and selectively abuts against and fixes the first screw rod (22).

2. A two-dimensional grinding motion platform as claimed in claim 1, characterized in that: The locking device (4) comprises a fixing seat (41) and a holding rod (42), wherein: The fixed seat (41) is fixedly arranged on the movable seat (1), and is provided with a mounting hole (401) and an air passage (402) inside thereof, wherein: The first screw rod (22) penetrates and is slidably disposed in the mounting hole (401); One end of the air channel (402) is connected to the mounting hole (401), and the other end is connected to the peripheral side of the fixing seat (41), and is used to be connected to the air supply device; The abutting rod (42) is sealed and slidably disposed in the air passage (402), and is selectively abutted and fixed to the peripheral side of the first screw rod (22).

3. A two-dimensional grinding motion platform as claimed in claim 2, characterized in that: Two air passages (402) are provided, and the two air passages (402) are symmetrically arranged about the center line of the mounting hole (401), and one supporting rod (42) is arranged in each air passage (402).

4. A two-dimensional grinding motion platform as claimed in claim 3, characterized in that: The inner diameter of the mounting hole (401) is greater than the outer diameter of the first screw rod (22).

5. A two-dimensional grinding motion platform as claimed in claim 4, characterized in that: The locking device (4) further comprises a rotating ring (43), a detection rod (44) and a bolt (45), wherein: The rotating ring (43) is rotatably mounted on the fixing seat (41), and its rotation axis coincides with the center line of the mounting hole (401), and the first screw rod (22) passes through the rotating ring (43); One end of the detection rod (44) is rotatably disposed on the rotating ring (43), and selectively abuts against the first screw rod (22); The bolt (45) is connected to the rotating ring (43) through threaded fitting and is slidably connected to the detection rod (44), and the bolt (45) selectively abuts and fixes the detection rod (44).

6. A two-dimensional grinding motion platform as claimed in claim 2, characterized in that: The locking device (4) further comprises a spring (46), wherein the spring (46) is fixedly disposed in the air passage (402); The supporting rod (42) is in a T-shaped structure, one end of which selectively passes through the spring (46), and the other end selectively supports an end of the spring (46) away from the mounting hole (401).

7. A two-dimensional grinding motion platform as claimed in claim 1, characterized in that: The movable seat (1) comprises a base (11), a second driving mechanism (12) and a movable frame (13), wherein the second driving mechanism (12) comprises a second motor (121) and a second screw rod (122), wherein: The second motor (121) is fixedly arranged on the base (11); The second screw rod (122) is rotatably disposed on the base (11), and is coaxially and fixedly connected to the output shaft of the second motor (121), and the second screw rod (122) is perpendicular to the first screw rod (22); The movable frame (13) is slidably arranged on the base (11) and is connected to the second screw rod (122) through threaded engagement; the first motor (21), the first screw rod (22), the grinding table (3) and the locker (4) are all arranged on the movable frame (13).

8. A two-dimensional grinding motion platform as claimed in claim 7, characterized in that: A locking device (4) is fixedly arranged on the base (11), and the locking device (4) on the base (11) selectively abuts against and fixes the second screw rod (122).

9. A two-dimensional grinding motion platform as claimed in claim 8, characterized in that: It also includes a limit unit (5), wherein the limit unit (5) includes a limit switch (51) and a sliding block (52), wherein: Two limit switches (51) are relatively fixed on the base (11) along the axial direction of the second screw rod (122), and two limit switches (51) are relatively fixed on the moving frame (13) along the axial direction of the first screw rod (22); A sliding block (52) is fixedly arranged on the movable frame (13) and the grinding table (3), respectively, and the sliding block (52) on the movable frame (13) selectively abuts against the two limit switches (51) on the base (11), and the sliding block (52) on the grinding table (3) selectively abuts against the two limit switches (51) on the movable frame (13).

10. A two-dimensional grinding motion platform as claimed in claim 9, characterized in that: It also includes a sliding assembly (6), the sliding assembly (6) including a sliding rail (61) and a sliding block (62), wherein the sliding rail (61) is fixedly arranged on the base (11) and the moving frame (13) respectively; The slider (62) is fixedly arranged on the movable frame (13) and the grinding table (3), respectively, and the slider (62) on the movable frame (13) is slidably connected to the slide rail (61) on the base (11), and the slider (62) on the grinding table (3) is slidably connected to the slide rail (61) on the movable frame (13).

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