L-track linkage clamping mechanism

Abstract

The utility model relates to an L-track linkage clamping mechanism, and belongs to the technical field of linkage mechanisms. The utility model aims to solve the technical problems of how to complete linkage of an 'L' route track and how to run reliably and smoothly. According to the technical scheme, a thumb air cylinder is used for clamping a workpiece, a transverse moving assembly and a vertical moving assembly are used for controlling plane movement of the thumb air cylinder, a driving motor is fixed to the back face of a fixing base, a shaft hole allowing a driving shaft of the driving motor to stretch out and an L-shaped track groove are formed in the fixing base, and a roller shaft assembly is arranged in the track groove. The end of a driving shaft of the driving motor is fixedly connected with a rocker arm, a reversing groove is formed in the rocker arm, the roller shaft assembly extends into the reversing groove and the track groove and is inserted into the bridge block in a penetrating mode, and the bridge block is fixed to the transverse moving assembly. And an oil injection channel is formed in the fixed seat and communicates with the inner wall of the track groove, and the device has the effects of improving the operation smoothness degree and improving the efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of linkage mechanisms, and in particular to an L-track linkage clamping mechanism. Background Art

[0002] At present, mechanical arms and manipulators are usually used in gripping machinery. The simpler gripping unit is a thumb cylinder, which can grip plastic parts, and its movement is controlled by other linkage mechanisms. Now, in order to meet the needs of automated assembly line processing, the workpiece needs to be moved in an "L"-shaped trajectory, which can be achieved by cooperating with the X-axis moving component and the Y-axis moving component, but it requires a separate motor drive control, which will increase the cost. On the L trajectory, the problem of unsmooth movement also occurs from time to time.

[0003] The technical problem that needs to be solved is how to complete the linkage of an "L" route trajectory and run it reliably and smoothly. Utility Model Content

[0004] In view of the above-mentioned shortcomings (problems) of the prior art, in order to enable the thumb cylinder to complete an "L" route trajectory and run smoothly, the present application provides an L-trajectory linkage clamping mechanism.

[0005] To achieve the above objectives and other related objectives, this application adopts the following technical solutions:

[0006] An L-track linkage clamping mechanism includes a fixed plate, a fixed seat, a lateral moving assembly, a vertical moving assembly, a cylinder seat, a rotating cylinder and a thumb cylinder. The fixed seat is mounted on one end of the fixed plate, the vertical moving assembly is mounted on the fixed seat, the lateral moving assembly is mounted on the vertical moving assembly, the cylinder seat is mounted on the lateral moving assembly and realizes lateral and vertical movement, the rotating cylinder is fixed on the cylinder seat, the thumb cylinder is mounted on the rotating cylinder and driven by the rotating cylinder to rotate, and the thumb cylinder is used to clamp the workpiece.

[0007] A driving motor is fixed on the back of the fixing seat, and an axial hole and an "L"-shaped track groove for the driving shaft of the driving motor to extend out are arranged on the fixing seat, a roller assembly is arranged in the track groove, a rocker arm is fixedly connected to the end of the driving shaft of the driving motor, a reversing groove is arranged on the rocker arm, the roller assembly extends into the reversing groove and the track groove and is inserted on the bridge block, and the bridge block is fixed on the transverse moving assembly;

[0008] The fixing seat is provided with an oil injection channel, which is connected to the inner wall of the track groove.

[0009] Optionally, an embedding groove is provided on the inner surface of the track groove, and the outlet of the oil injection channel is located in the embedding groove.

[0010] Optionally, the roller assembly includes a shaft body and a roller, the shaft body is provided with a plurality of annular grooves, the roller is sleeved on the shaft body and retaining rings are provided on both sides to limit the axial movement of the roller.

[0011] Optionally, a plurality of rollers are provided, and annular ribs are provided on the rollers, and the annular ribs are limited in the embedded grooves, or embedded grooves are also provided in the reversing grooves.

[0012] Optionally, the embedded groove in the track groove is filled with cotton thread or a hose, and the hose is provided with oil outlet holes.

[0013] Optionally, the lateral movement component includes a lateral rail and a lateral slider, which are arranged in two pairs and in parallel; the vertical movement component includes a vertical rail and a vertical slider, which are arranged in two pairs and in parallel; the bridge block is fixed at the ends of the two lateral slide rails, and the distance between the two opposite sides of the bridge block and the rocker arm is less than 1 cm.

[0014] In summary, the present application includes at least one of the following beneficial technical effects:

[0015] 1. The rotary cylinder drives the thumb cylinder to rotate. The thumb cylinder is used to clamp the workpiece. The cooperation of the horizontal moving component and the vertical moving component realizes the plane position movement of the thumb cylinder. The rotation action is provided by a single drive motor. The drive motor provides forward or reverse reciprocating rotation at a certain angle, so that the rocker arm shakes. The rocker arm uses the roller shaft component to install the "L"-shaped track groove route to control the path of the thumb cylinder. The oil injection channel is used to slide the roller shaft component to improve the smoothness of the movement;

[0016] 2. Efficient and reliable operation, improving operation speed and stability;

[0017] 3. It is easy to maintain in the later stage, and adding lubricating oil is convenient and labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;

[0019] Figure 2 is a structural side view of an embodiment of the present application;

[0020] Figure 3 is a top view of the structure of an embodiment of the present application;

[0021] Figure 4 yes Figure 3 The cross-sectional view of the AA surface;

[0022] Figure 5 It is a simplified diagram of the structure inside the track groove;

[0023] Figure 6This is the schematic diagram of the roller assembly structure.

[0024] Description of main component reference numerals:

[0025] 1. Fixed plate; 2. Fixed seat; 21. Shaft hole; 22. Track groove; 23. Oil filling channel; 24. Embedded groove; 3. Horizontal moving assembly; 31. Horizontal track; 32. Horizontal slider; 4. Vertical moving assembly; 41. Vertical track; 42. Vertical slider; 5. Cylinder seat; 6. Rotary cylinder; 7. Thumb cylinder; 8. Drive motor; 9. Roller assembly; 91. Shaft body; 911. Ring groove; 912. Snap ring; 92. Roller; 921. Ring rib; 10. Rocker arm; 101. Reversing groove; 11. Bridge block; 12. Cotton thread; 13. Hose; 131. Oil outlet. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. The present application can also be implemented or applied through other different specific embodiments, 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 application. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0027] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present application. The illustrations only show the components related to the present application rather than being drawn according to the number, shape and size of the components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0028] The following is combined with Figure 1-6 The specific implementation methods of this application are further described.

[0029] Example:

[0030] The present application embodiment discloses an L-track linkage clamping mechanism, combined with Figure 1 , Figure 2 and Figure 3It is understood that it includes a fixed plate 1, a fixed base 2, a lateral movement component 3, a vertical movement component 4, a cylinder base 5, a rotating cylinder 6 and a thumb cylinder 7. The fixed base 2 is mounted on one end of the fixed plate 1, and the vertical movement component 4 is mounted on the fixed base 2. The vertical movement component 4 is used to enable the cylinder base 5 to move vertically. The lateral movement component 3 is mounted on the vertical movement component 4, and can be used to enable the cylinder base 5 to move horizontally. The cylinder base 5 is mounted on the lateral movement component 3 and realizes lateral and vertical movements. The rotating cylinder 6 is fixed on the cylinder base 5. The thumb cylinder 7 is mounted on the rotating cylinder 6 and is driven by it to rotate. The thumb cylinder 7 is used to clamp the workpiece.

[0031] A driving motor 8 is fixed on the back of the fixed seat 2. The driving motor 8 can rotate forward and reverse. In this case, a servo motor is used as the driving motor 8. The fixed seat 2 is provided with an axial hole 21 for the driving shaft of the driving motor 8 to extend out, and an "L"-shaped track groove 22. A roller assembly 9 is arranged in the track groove 22. The end of the driving shaft of the driving motor 8 is fixedly connected to a rocker arm 10. The rocker arm 10 is provided with a reversing groove 101. The roller assembly 9 extends into the reversing groove 101 and the track groove 22 and is inserted on the bridge block 11. The bridge block 11 is fixed on the lateral movement assembly 3.

[0032] During specific operation, the driving motor 8 moves back and forth alternately in the forward or reverse direction, causing the rocker arm 10 to swing back and forth, thereby driving the roller assembly 9 to move in the track groove 22 and in the reversing groove 101. It can be seen that the cylinder seat 5 can move along the path of the track groove 22. At this time, the roller assembly 9 cooperates in the track groove 22 and the reversing groove 101 of the rocker arm 10, and it is necessary to continuously add lubricating oil to reduce friction and improve the smoothness of movement. If it is very inconvenient to add lubricating oil during work. In order to be able to keep the machine running without stopping, lubricating oil can also be added. Or the lubricating oil is not easy to evaporate, so that the lubrication is more lasting and effective.

[0033] In this embodiment, Figure 4 As can be seen in the figure, the fixing seat 2 is provided with an oil injection channel 23, and a plurality of oil injection channels 23 can be provided, and the oil injection channel 23 is connected to the inner wall of the track groove 22. In this way, lubricating oil can be added into the track groove 22 through the oil injection channel 23, so the operation of adding lubricating oil will not affect the operation of the mechanism, and it is added through the side of the fixing seat 2, which is very convenient.

[0034] Furthermore, the inner surface of the track groove 22 is provided with an embedding groove 24, and the outlet of the oil injection channel 23 is located in the embedding groove 24. The embedding groove 24 allows more lubricating oil to be stored, and the lubrication is more durable.

[0035] exist Figure 6In the figure, the roller assembly 9 includes a shaft body 91 and a roller 92. The shaft body 91 is provided with a plurality of annular grooves 911. The roller 92 is sleeved on the shaft body 91 and provided with snap rings 912 on both sides to limit the axial movement of the roller 92. The snap ring 912 can be replaced by a snap spring. In this way, the roller 92 can be limited, so that the roller 92 is not easily offset from the axis, and the smoothness of rolling is improved.

[0036] exist Figure 6 In the embodiment, a plurality of rollers 92 are provided, and an annular rib 921 is provided on the roller 92 . The annular rib 921 is limited in the embedding groove 24 , or the embedding groove 24 is also provided in the reversing groove 101 .

[0037] In other embodiments, the groove 24 in the track groove 22 may be filled with cotton thread 12. The cotton thread 12 can store oil and prolong the lubrication effect. The groove 24 in the track groove 22 is filled with a hose 13, and the hose 13 is filled with lubricating oil. In this solution, lubricating oil or lubricating grease can be used. Figure 5 As shown, the hose 13 is provided with oil outlet holes 131. The roller 92 presses the hose 13 to squeeze out the lubricating oil, thereby achieving lubrication.

[0038] exist Figure 3 As can be seen, the lateral moving assembly 3 includes a lateral rail 31 and a lateral slider 32, which are arranged in two pairs and are arranged in parallel, and the vertical moving assembly 4 includes a vertical rail 41 and a vertical slider 42, which are arranged in two pairs and are arranged in parallel. The bridge block 11 is fixed at the ends of the two lateral slide rails, and the distance L1 between the two opposite sides of the bridge block 11 and the rocker arm 10 is less than 1 cm. If the distance L1 between the bridge block 11 and the rocker arm 10 is relatively small, the shaking of the shaft can be avoided, the force arm can be reduced, and the transmission through the roller assembly 9 is more labor-saving.

[0039] The above embodiments are only illustrative of the principles and effects of the present application, and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An L-track linkage clamping mechanism, comprising a fixed plate (1), a fixed seat (2), a lateral moving assembly (3), a vertical moving assembly (4), a cylinder seat (5), a rotary cylinder (6) and a thumb cylinder (7), wherein the fixed seat (2) is mounted on one end of the fixed plate (1), the vertical moving assembly (4) is mounted on the fixed seat (2), the lateral moving assembly (3) is mounted on the vertical moving assembly (4), the cylinder seat (5) is mounted on the lateral moving assembly (3) and realizes lateral and vertical movement, the rotary cylinder (6) is fixed on the cylinder seat (5), the thumb cylinder (7) is mounted on the rotary cylinder (6) and driven by the rotary cylinder (6) to rotate, and the thumb cylinder (7) is used to clamp a workpiece. Features: A driving motor (8) is fixed on the back of the fixing seat (2), and an axial hole (21) and an L-shaped track groove (22) are provided on the fixing seat (2), and a roller assembly (9) is provided in the track groove (22). A rocker arm (10) is fixedly connected to the end of the driving shaft of the driving motor (8), and a reversing groove (101) is provided on the rocker arm (10). The roller assembly (9) extends into the reversing groove (101) and the track groove (22) and is inserted into the bridge block (11), and the bridge block (11) is fixed on the transverse moving assembly (3); The fixing seat (2) is provided with an oil injection channel (23), and the oil injection channel (23) is connected to the inner wall of the track groove (22).

2. The L-track linkage clamping mechanism according to claim 1, characterized in that: The inner surface of the track groove (22) is provided with an embedding groove (24), and the outlet of the oil injection channel (23) is located in the embedding groove (24).

3. The L-track linkage clamping mechanism according to claim 2, characterized in that: The roller shaft assembly (9) comprises a shaft body (91) and a roller (92); the shaft body (91) is provided with a plurality of annular grooves (911); the roller (92) is sleeved on the shaft body (91) and has retaining rings (912) on both sides to limit the axial movement of the roller (92).

4. The L-track linkage clamping mechanism according to claim 3, characterized in that: A plurality of rollers (92) are provided, and an annular rib (921) is provided on the roller (92), and the annular rib (921) is limited in the embedded groove (24), or an embedded groove (24) is also provided in the reversing groove (101).

5. The L-track linkage clamping mechanism according to claim 2, characterized in that: The embedded groove (24) in the track groove (22) is filled with cotton thread (12) or a hose (13), and the hose (13) is provided with oil outlet holes (131).

6. The L-track linkage clamping mechanism according to claim 3, characterized in that: The transverse moving assembly (3) comprises a transverse rail (31) and a transverse slider (32), and the transverse rail (31) and the transverse slider (32) are arranged in two pairs and are arranged in parallel. The vertical moving assembly (4) comprises a vertical rail (41) and a vertical slider (42), and the vertical rail (41) and the vertical slider (42) are arranged in two pairs and are arranged in parallel. The bridge block (11) is fixed at the ends of the two transverse slide rails, and the distance between the two opposite sides of the bridge block (11) and the rocker arm (10) is less than 1 cm.

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