Multi-axis linkage workpiece positioning and grabbing mechanical structure

Abstract

The utility model discloses a multi-axis linkage workpiece positioning and grabbing mechanical structure, and relates to the technical field of workpiece positioning. The device comprises a sliding rail, a sliding block is arranged on the sliding rail in a sliding fit mode, a groove is formed in the upper side of the sliding block, two movable seats are arranged in the groove in a sliding fit mode, two positioning grabbing blocks are arranged on the upper sides of the two movable seats in a sliding fit mode, and relative movement assemblies matched with the two positioning grabbing blocks are arranged on the upper sides of the movable seats. A movable supporting plate is arranged on one side of the sliding block in a sliding fit mode, a motor is arranged on one side of the movable supporting plate, and the motor is connected with one relative moving assembly. According to the positioning and grabbing machine, the two movable seats are arranged on the sliding block, the positions of the two movable seats can be adjusted respectively, the positions of the two positioning and grabbing blocks can be adjusted according to the lengths of shaft workpieces or plate workpieces, and therefore the application range of the positioning and grabbing machine is widened.

Description

Technical Field

[0001] This utility model belongs to the field of workpiece positioning, specifically, it relates to a multi-axis linkage workpiece positioning and gripping mechanical structure. Background Technology

[0002] Robotic arms are needed to replace manual handling in both product manufacturing and transportation processes. The advantages of robotic arms are high efficiency and low cost.

[0003] Existing mechanical gripping structures generally consist of a drive unit and a mechanical gripper. The mechanical gripper positions and grips the workpiece, and then moves it to the workstation via the drive unit. However, the position of the gripper in the mechanical gripper is generally fixed. While the gripping width can be easily adjusted, when processing shaft or plate-type workpieces, since the lengths of shafts or plates vary, the fixed position of the gripper makes it impossible to adjust the gripping according to the length of the shaft or plate workpiece, thus easily affecting the applicability of the mechanical gripping structure.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a multi-axis linkage workpiece positioning and gripping mechanical structure, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A multi-axis linkage workpiece positioning and gripping mechanical structure includes: a slide rail, a slider slidably fitted on the slide rail, a groove on the upper side of the slider, two movable seats slidably fitted in the groove, two positioning gripping blocks slidably fitted on the upper side of each of the two movable seats, and a relative moving component that cooperates with the two positioning gripping blocks on the upper side of the movable seats;

[0008] A movable support plate is slidably fitted on one side of the slider, and a motor is provided on one side of the movable support plate. The motor is connected to one of the relative moving components. A telescopic transmission component is rotatably fitted on one side of the groove, and the telescopic transmission component is located between the two relative moving components.

[0009] Optionally, the relative movement component includes a bidirectional threaded rod rotatably engaged on the movable seat, and two threaded blocks slidably engaged on the movable seat and threadedly engaged on the periphery of the bidirectional threaded rod, wherein the two threaded blocks are respectively fixedly connected to the two positioning gripping blocks.

[0010] Optionally, the two ends of the bidirectional threaded rod have opposite thread directions, and the bidirectional threaded rod is in transmission engagement with the telescopic transmission assembly.

[0011] Optionally, a fixing groove is provided on one side of the groove, and a support block is slidably fitted in the fixing groove. A through hole is provided on one side of the support block, and a bearing is provided in the through hole. The telescopic transmission assembly includes a first rotating shaft disposed inside the bearing, a rectangular channel opened on one side of the first rotating shaft, and a second rotating shaft slidably fitted in the rectangular channel. One end of the first rotating shaft and the second rotating shaft are respectively connected to one end of the two bidirectional threaded rods. The second rotating shaft has a rectangular structure and engages with the rectangular channel.

[0012] Optionally, one end of each of the two bidirectional threaded rods is provided with a first bevel gear, and one end of the first shaft and the second shaft is provided with a second bevel gear that meshes with the first bevel gear. One side of one of the first bevel gears is provided with a connecting rod that is fixedly connected to the motor.

[0013] Optionally, a limiting groove is provided in the fixing groove, and a limiting block that is fixedly connected to the support block is slidably fitted in the limiting groove.

[0014] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art. Of course, any product implementing this utility model does not necessarily need to achieve all of the following advantages at the same time:

[0015] By setting two movable seats on the slider, the positions of the two movable seats can be adjusted separately, and the positions of the two positioning gripping blocks can be adjusted according to the length of shaft or plate workpieces, thereby improving the applicability of the positioning gripping machine;

[0016] By using the telescopic transmission component installed inside the slider, the motor on the movable support plate can simultaneously drive the two relatively moving components to operate, which can simultaneously move the two positioning gripping blocks on the two movable seats to grip and position the outer side of the workpiece, thereby facilitating the gripping and fixing of the workpiece.

[0017] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0018] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0019] In the picture:

[0020] Figure 1 Schematic diagram of the mechanical structure for positioning and gripping workpieces;

[0021] Figure 2 This is a schematic diagram of the positioning and grabbing block structure;

[0022] Figure 3 This is a schematic diagram of the telescopic transmission assembly.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Slider; 2. Groove; 3. Movable seat; 4. Positioning gripper; 5. Relative movement assembly; 5. Bidirectional threaded rod; 501. Threaded block; 502. Motor; 6. Telescopic transmission assembly; 7. First rotating shaft; 701. Second rotating shaft; 702. Support block; 9. Bearing; 10. Fixed groove; 11. Channel; 12. First bevel gear; 13. Second bevel gear; 14. Slide rail; 15. Movable support plate; 16.

[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] Please see Figure 1-3 As shown, this embodiment provides a multi-axis linkage workpiece positioning and gripping mechanical structure, including: a slide rail 15, a slider 1 slidably fitted on the slide rail 15, a groove 2 opened on the upper side of the slider 1, two movable seats 3 slidably fitted in the groove 2, two positioning gripping blocks 4 slidably fitted on the upper side of each of the two movable seats 3, and a relative moving component 5 that cooperates with the two positioning gripping blocks 4 on the upper side of the movable seats 3, wherein the movable seats 3 have a concave structure;

[0028] A movable support plate 16 is slidably fitted on one side of the slider 1. A motor 6 is provided on one side of the movable support plate 16. The motor 6 is connected to one of the relative moving components 5. A telescopic transmission component 7 is rotatably fitted on one side of the groove 2. The telescopic transmission component 7 is located between the two relative moving components 5.

[0029] By using two movable seats 3 on the slider 1, the positions of the two movable seats 3 can be adjusted respectively, and the positions of the two positioning gripping blocks 4 can be adjusted according to the length of shaft or plate workpiece, thereby improving the applicability of the positioning gripping machine; by using the telescopic transmission component 7 in the slider 1, the motor 6 on the movable support plate 16 can drive the two relative moving components 5 to run simultaneously through the telescopic transmission component 7, so that the two positioning gripping blocks 4 on the two movable seats 3 can move relative to each other at the same time to grip and position the outside of the workpiece, thereby facilitating the gripping and fixing of the workpiece.

[0030] like Figure 2-3 As shown, the relative movement component 5 in this embodiment includes a bidirectional threaded rod 501 rotatably engaged with the movable seat 3, and two threaded blocks 502 slidably engaged with the movable seat 3 and threadedly engaged with the periphery of the bidirectional threaded rod 501. The two threaded blocks 502 are respectively fixedly connected to two positioning gripping blocks 4. The two ends of the bidirectional threaded rod 501 have opposite thread directions, and the bidirectional threaded rod 501 is engaged with the telescopic transmission component 7.

[0031] like Figure 2-3 As shown, in this embodiment, a fixing groove 11 is provided on one side of the groove 2, and a support block 9 is slidably fitted in the fixing groove 11. A through hole is provided on one side of the support block 9, and a bearing 10 is provided in the through hole. The telescopic transmission assembly 7 includes a first rotating shaft 701 provided inside the bearing 10, a rectangular channel provided on one side of the first rotating shaft 701, and a second rotating shaft 702 slidably fitted in the rectangular channel. One end of the first rotating shaft 701 and the second rotating shaft 702 are respectively connected to one end of two bidirectional threaded rods 501 for transmission. The second rotating shaft 702 has a rectangular structure and is engaged with the rectangular channel. The two bidirectional threaded rods 501 are each provided with a first bevel gear 13 at one end, and the first rotating shaft 701 and the second rotating shaft 702 are each provided with a second bevel gear 14 that meshes with the first bevel gear 13 at one end. One side of one of the first bevel gears 13 is provided with a connecting rod that is fixedly connected to the motor 6. The rectangular second rotating shaft 702 is engaged in the rectangular groove at the end of the first rotating shaft 701, so that the first rotating shaft 701 and the second rotating shaft 702 can extend and retract when the movable seat 3 is moved, but this does not affect the first rotating shaft 701 driving the second rotating shaft 702 to rotate.

[0032] When gripping and positioning the workpiece, the two movable seats 3 are moved first, and the movement of the movable seats 3 drives the two positioning gripping blocks 4 to move. When the two movable seats 3 move to the appropriate position to grip the workpiece, the motor 6 is started. The motor 6 drives the connecting rod to rotate through the output end. The rotation of the connecting rod drives one of the first bevel gears 13 to rotate. The first bevel gear 13 drives one of the bidirectional threaded rods 501 to rotate, and at the same time drives one of the second bevel gears 14 to rotate. The rotation of the second bevel gear 14 drives the first rotating shaft 701 to rotate. The rotation of the first rotating shaft 701 drives the other second bevel gear 14 to rotate through the rectangular second rotating shaft 702. The rotation of the other second bevel gear 14 drives the other first bevel gear 13 to rotate. The rotation of the other first bevel gear 13 drives the other bidirectional threaded rod 501 to rotate. The rotation of the two bidirectional threaded rods 501 drives the two threaded blocks 502 on the two movable seats 3 to move relative to each other. The relative movement of the two threaded blocks 502 can make the two positioning gripping blocks 4 on the two movable seats 3 move relative to each other at the same time. They can move relative to each other at the same time to grip and position the outside of the workpiece, thus facilitating the gripping and fixing of the workpiece.

[0033] In this embodiment, a limiting groove is provided in the fixing groove 11, and a limiting block is slidably fitted in the limiting groove and fixedly connected to the support block 9. The limiting block slides in the limiting groove, which enables the support block 9 to slide stably in the fixing groove 11, reducing the possibility of misalignment of the support block 9 when it moves in the fixing groove 11.

[0034] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A multi-axis linkage workpiece positioning and gripping mechanical structure, characterized in that, include: A slide rail (15) is provided, on which a slider (1) is slidably fitted. A groove (2) is provided on the upper side of the slider (1). Two movable seats (3) are slidably fitted in the groove (2). Two positioning gripping blocks (4) are slidably fitted on the upper side of each of the two movable seats (3). A relative moving component (5) is provided on the upper side of the movable seat (3) to cooperate with the two positioning gripping blocks (4). The slider (1) is slidably fitted with a movable support plate (16) on one side, and a motor (6) is provided on one side of the movable support plate (16). The motor (6) is connected to one of the relative moving components (5). A telescopic transmission component (7) is rotatably fitted in one side of the groove (2). The telescopic transmission component (7) is located between the two relative moving components (5).

2. The multi-axis linkage workpiece positioning and gripping mechanical structure according to claim 1, characterized in that, The relative moving component (5) includes a bidirectional threaded rod (501) rotatably engaged on the movable seat (3), and two threaded blocks (502) slidably engaged on the movable seat (3) and threadedly engaged on the periphery of the bidirectional threaded rod (501). The two threaded blocks (502) are respectively fixedly connected to the two positioning gripping blocks (4).

3. The multi-axis linkage workpiece positioning and gripping mechanical structure according to claim 2, characterized in that, The two ends of the bidirectional threaded rod (501) have opposite thread directions, and the bidirectional threaded rod (501) is in transmission cooperation with the telescopic transmission assembly (7).

4. The multi-axis linkage workpiece positioning and gripping mechanical structure according to claim 3, characterized in that, A fixing groove (11) is provided on one side of the groove (2), and a support block (9) is slidably fitted in the fixing groove (11). A through hole is provided on one side of the support block (9), and a bearing (10) is provided in the through hole. The telescopic transmission assembly (7) includes a first rotating shaft (701) provided inside the bearing (10), a rectangular channel opened on one side of the first rotating shaft (701), and a second rotating shaft (702) slidably fitted in the rectangular channel. One end of the first rotating shaft (701) and the second rotating shaft (702) are respectively connected to one end of the two bidirectional threaded rods (501). The second rotating shaft (702) has a rectangular structure and is engaged with the rectangular channel.

5. The multi-axis linkage workpiece positioning and gripping mechanical structure according to claim 4, characterized in that, One end of each of the two bidirectional threaded rods (501) is provided with a first bevel gear (13), and one end of the first shaft (701) and the second shaft (702) is provided with a second bevel gear (14) that meshes with the first bevel gear (13). One side of one of the first bevel gears (13) is provided with a connecting rod that is fixedly connected to the motor (6).

6. The multi-axis linkage workpiece positioning and gripping mechanical structure according to claim 4, characterized in that, A limiting groove is provided in the fixing groove (11), and a limiting block that is fixedly connected to the support block (9) is slidably fitted in the limiting groove.

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