Electric clamping jaw with staggered slider and method of assembly

Abstract

The application discloses a kind of electric clamping jaws of staggered slider, including driving motor, telescopic component and base, telescopic component includes outside parent body and inside child body, child body and parent body are threadedly connected, child body includes the retracted state of moving to limit position along first direction and the extended state of moving to limit position along second direction, driving motor is used to drive parent body rotation to drive child body to extend or retract;Two sliding blocks are provided in the sliding slot of base, the inner side of sliding block is provided with the inclined groove of the inclined direction intersection;The side wall of child body is penetrated with first mounting hole, and the inclined grooves of two sliding blocks are communicated by first mounting hole.The spindle is inserted from side to install, improve assembly efficiency, improve the precision of clamping jaw;When child body moves to extended state, the center axis of second mounting hole and third through hole is collinear, it is convenient to insert fixing member from top end so that its tail end is abutted on the side wall of spindle, limit the freedom degree of spindle in its axial direction, realize positioning locking, installation is simple and convenient.

Description

Technical Field

[0001] This invention relates to the field of electric gripper technology, and in particular to an electric gripper with an interlaced slider and an assembly method thereof. Background Technology

[0002] Electric grippers are electrically driven clamping devices that can grip items, improving work efficiency in assembly line production. However, common electric grippers have complex structures, and the use of too many screws to fix multiple parts can reduce the overall precision of the gripper, affecting its service life, and making the assembly process cumbersome and inefficient. Furthermore, the large size of the gripper's hand portion requires more space to rotate and is not conducive to rotational positioning. Summary of the Invention

[0003] To address the aforementioned technical problems, the objective of this invention is to provide an electric gripper with an interlaced slider and an assembly method thereof, making the electric gripper structure simple and easy to assemble.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An electric gripper with staggered sliders includes a drive motor, a telescopic assembly, and a base. The telescopic assembly includes an outer mother body and an inner daughter body, which are threadedly connected to the mother body. The daughter body includes a retracted state (moving to a limited position along a first direction) and an extended state (moving to a limited position along a second direction). The drive motor drives the mother body to rotate, causing the daughter body to extend or retract. The base has a groove, and the end of the daughter body of the telescopic assembly passes through the base and is located in the middle of the groove. Two parallel opposing sliders are arranged in the groove, and the inner side of each slider has an inclined groove. The inclination directions of the inclined grooves of the two sliders intersect. A first mounting hole is formed through the side wall of the daughter body. The inclined groove connects two sliders; the sidewall of the groove is provided with a first through hole, and the side of the slider is provided with a second through hole connecting the inclined groove. The central axes of the first through hole, the second through hole, and the first mounting hole can be collinear at a specific position; the side of the slider away from the telescopic component is provided with a third through hole, and the end of the sub-body is provided with a second mounting hole, which communicates with the first mounting hole and is collinear with the central axis of the second mounting hole and the third through hole; a mandrel is provided in the first mounting hole, and both ends of the mandrel extend into the inclined groove; a fixing member is provided in the second mounting hole, and the tail end of the fixing member abuts against the sidewall of the mandrel to restrict the mandrel's degree of freedom in its axial direction.

[0006] Preferably, bearings are fitted at both ends of the mandrel, and the bearings are respectively embedded in the inclined grooves of the two side sliders and are in rolling connection with the inclined grooves.

[0007] Preferably, a stop is provided between the sliders, the stop is in contact with the sliders on both sides, and the stop is connected to the bottom of the groove.

[0008] Preferably, the top of the slider is provided with a boss, the boss extends above the adjacent slider, and the boss is provided with a plurality of connecting holes.

[0009] Preferably, the stroke length portion of the sub-body is provided with side mounting walls parallel to the sliders on both sides, the distance between the two side mounting walls is X, the radius of the sub-body is R, X=2*R*sinα, 35°≤α≤45°.

[0010] Preferably, the thickness of the stop is greater than X.

[0011] Preferably, the drive motor is a hollow rotary motor, located on the outside of the telescopic assembly, used to drive the mother body to rotate;

[0012] Alternatively, the drive motor may include an output shaft connected to the main body of the component and located at the end of the main body away from the daughter body, for driving the main body to rotate.

[0013] Preferably, the device includes a housing and a support sleeve, wherein the mother body is a nut, the daughter body is a lead screw, the drive motor is disposed inside the housing, one end of the support sleeve abuts against the base, and the other end is connected to the inner sidewall of the housing, and the end of the support sleeve away from the base is provided with an inward flange, and the mother body is located inside the support sleeve and confined between the base and the flange.

[0014] A method for assembling an electric gripper with an interleaved slider, comprising the following steps:

[0015] S1. A drive motor, a telescopic assembly, a base, a slider, a spindle, a bearing, and a fixing component are provided. The telescopic assembly includes an outer mother body and an inner daughter body, which are threadedly connected to the mother body. The daughter body includes a retracted state that moves to a limited position along a first direction and an extended state that moves to a limited position along a second direction. The drive motor is used to drive the mother body to rotate and cause the daughter body to extend or retract. The base is provided with a sliding groove, the inner side of the slider is provided with an inclined groove, the side wall of the sliding groove is provided with a first through hole, the side of the slider is provided with a second through hole communicating with the inclined groove, and the end of the slider is provided with a third through hole.

[0016] S2. The base is fitted onto the sub-body of the telescopic assembly, the two bearings are pressed into the inclined grooves of the two sliders, and slidably placed in the groove of the base;

[0017] S3. Control the telescopic component to move until the central axes of the first through hole, the second through hole and the first mounting hole are collinear;

[0018] S4. Pass the mandrel through the first through hole, the second through hole and the first mounting hole from one side of the first through hole, so that the bearings are sleeved on both ends of the mandrel;

[0019] S5. Control the sub-body of the telescopic assembly to be in the extended state, at which time the central axes of the second mounting hole and the third through hole are collinear, and the end of the sub-body is close to the top of the slider;

[0020] S6. Pass the tail end of the fastener through the third through hole and the second mounting hole in sequence and abut it against the side wall of the mandrel.

[0021] Preferably, the sidewall of the mandrel is provided with a V-shaped groove that surrounds the mandrel circumferentially, and the tail end of the fastener is engaged in the V-shaped groove.

[0022] Due to the application of the above technical solution, the present invention has the following advantages compared with the prior art:

[0023] The electric gripper of the interlaced slider of the present invention includes a drive motor, a telescopic assembly, and a base. The telescopic assembly includes an outer mother body and an inner daughter body, which are threadedly connected. The daughter body has a retracted state (moving to a limited position along a first direction) and an extended state (moving to a limited position along a second direction). The drive motor drives the mother body to rotate, causing the daughter body to extend or retract. Two sliders are arranged in the groove of the base. The inner side of the slider is provided with inclined grooves that intersect in an inclined direction. A first mounting hole is provided through the side wall of the daughter body, which connects the inclined grooves of the two sliders. A first through hole is provided on the side wall of the groove, and a second through hole is provided on the side of the slider, which connects to the inclined groove. When the daughter body moves to the retracted state, the first through hole... The central axes of the first mounting hole, the second through hole, and the first mounting hole are collinear, facilitating the side insertion and installation of the mandrel in the first mounting hole. This ingenious structure improves assembly efficiency and enhances the precision of the grippers. A third through hole is located on the side of the slider away from the telescopic component, and a second mounting hole is located at the end of the sub-body. The second mounting hole communicates with the first mounting hole. When the sub-body moves to the extended state, the central axes of the second mounting hole and the third through hole are collinear, facilitating the insertion of a fixing member from the top. This allows the tail end of the fixing member to abut against the side wall of the mandrel, restricting the mandrel's axial freedom. Positioning and locking can be achieved with only one fixing member, making installation simple and convenient. At the same time, the small rotation radius reduces the size of the grippers. Attached Figure Description

[0024] The technical solution of the present invention will be further described below with reference to the accompanying drawings:

[0025] Appendix Figure 1 This is a perspective view of the electric gripper of the staggered slider of the present invention;

[0026] Appendix Figure 2 This is a front view of the electric gripper of the staggered slider of the present invention;

[0027] Appendix Figure 3 For the appendix Figure 2 AA section view;

[0028] Appendix Figure 4 For the appendix Figure 3 A diagram showing the slider on one side being hidden;

[0029] Appendix Figure 5 This is an exploded view of the electric gripper of the staggered slider of the present invention.

[0030] Appendix Figure 6 This is a perspective view of another embodiment of the electric gripper of the staggered slider of the present invention;

[0031] Appendix Figure 7 A perspective view of the slider of another embodiment of the electric gripper of the staggered slider of the present invention;

[0032] Appendix Figure 8 This is a partial cross-sectional view of another embodiment of the electric gripper of the staggered slider of the present invention.

[0033] The components are as follows: 1. Drive motor; 2. Main body; 3. Sub-body; 31. First mounting hole; 32. Second mounting hole; 33. Side mounting wall; 4. Base; 41. Slide groove; 43. First through hole; 5. Slider; 51. Inclined groove; 52. Second through hole; 53. Connecting hole; 54. Boss; 55. Third through hole; 6. Spindle; 61. V-groove; 7. Bearing; 8. Fixing component; 9. Stop block; 10. Outer shell; 11. Support sleeve; 111. Flange; 12. Cover screw. Detailed Implementation

[0034] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby providing a clearer and more explicit definition of the scope of protection of the present invention.

[0035] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0036] As attached Figure 1 Appendix Figure 2 The diagram shows the electric gripper of the staggered slider of the present invention, including a drive motor 1, a mother body 2, a daughter body 3, and a base 4. The telescopic assembly includes an outer mother body 2 and an inner daughter body 3, which are threadedly connected to the mother body 2. The daughter body 3 includes a retracted state (moving to a restricted position along a first direction) and an extended state (moving to a restricted position along a second direction). The drive motor 1 drives the mother body 2 to rotate, thereby causing the daughter body 3 to extend or retract. The drive motor 1 is a hollow rotary motor, mounted on the outside of the telescopic assembly, used to drive the mother body 2 to rotate. Alternatively, the drive motor 1 includes an output shaft connected to the mother body 2 of the telescopic assembly and located at the end of the mother body 2 away from the daughter body 3, used to drive the mother body 2 to rotate. (See attached diagram) Figure 5 As shown, the base 4 is provided with a groove 41, and the end of the telescopic component 3 passes through the base 4 and is located in the middle of the groove 41.

[0037] Two parallel, opposing sliders 5 are installed within the slide groove 41. The outer sides of the sliders 5 are in contact with the inner wall of the slide groove 41, and the two sliders 5 are slidably connected to the slide groove 41. An inclined groove 51 is machined on the inner side of each slider 5, and the inclined grooves 51 of the two sliders 5 are inclined in opposite directions and intersect each other. A first mounting hole 31 is passed through the side wall of the sub-body 3, connecting the inclined grooves 51 of the two sliders 5. A first through hole 43 is machined on the side wall of the slide groove 41, and a second through hole 52 is machined on the side of the slider 5, connecting the inclined groove 51. When the sub-body 3 moves to a certain state, the central axes of the first through hole 43, the second through hole 52, and the first mounting hole 31 are collinear. In this embodiment, this state is the retracted state. A third through hole 55 is machined on the side of the slider 5 away from the telescopic component, and a second mounting hole 32 is machined at the end of the sub-body 3, connecting the second mounting hole 32 to the first mounting hole 31. When the sub-body 3 moves to the extended state, the central axes of the second mounting hole 32 and the third through hole 55 are collinear.

[0038] A spindle 6 is provided in the first mounting hole 31, with both ends of the spindle 6 extending into the inclined groove 51. A fixing member 8 is provided in the second mounting hole 32, with the tail end of the fixing member 8 abutting against the side wall of the spindle 6 to restrict the spindle 6's degree of freedom in its axial direction.

[0039] Bearings 7 are fitted at both ends of the spindle 6. The bearings 7 are respectively embedded in the inclined grooves 51 of the two sliders 5 and are rolledly connected to the inclined grooves 51 to reduce friction during movement and make the operation smoother. When the sub-body 3 moves, the two sliders 5 move closer or further away from each other along the length of the groove 41 under the drive of the sub-body 3 to pick up and put down objects.

[0040] In this embodiment, the top of the slider 5 is machined with several connecting holes 53 arranged along the sliding direction to connect other extension structures, facilitating the clamping of different objects. (See attached diagram) Figure 6 Appendix Figure 7 Appendix Figure 8 As shown, in another embodiment, a boss 54 is formed on the top of the slider 5, the boss 54 extends above the adjacent slider 5, and a plurality of connecting holes 53 are machined on the boss 54, so that the gripper has a wider range of adaptability and more flexible gripping.

[0041] A stop block 9 is installed between the sliders 5. The stop block 9 fits against the sliders 5 on both sides to effectively prevent the sliders 5 from shaking and make the sliders 5 move more stably. The stop block 9 is connected to the bottom of the slide groove 41. The stop block 9 and the base 4 are integrally formed or the stop block 9 and the base 4 are fixedly connected by screws.

[0042] The stroke length of the sub-body 3 is machined with side mounting walls 33 parallel to the two sliders 5 on both sides. The distance between the two side mounting walls 33 is X, and the radius of the sub-body 3 is R, where X = 2R*sinα, 35°≤α≤45°. The thickness of the stop block 9 is greater than X. Within a certain range, the greater the thickness of the stop block 9, the higher the support force provided when the sliders 5 are clamped. This effectively solves the problem of slider 5 deflection caused by the reaction force when clamping an object due to the two sliders 5 not being collinear, thereby improving the stability of the gripper.

[0043] The electric gripper of the staggered slider of the present invention also includes a housing 10 and a support sleeve 11. The drive motor 1 is installed inside the housing 10. One end of the support sleeve 11 abuts against the base 4, and the other end is connected to the inner side wall of the housing 10. The end of the support sleeve 11 away from the base 4 forms an inward flange 111. In this embodiment, the mother body 2 is a nut, and the daughter body 3 is a lead screw. The mother body 2 is located inside the support sleeve 11 and is confined between the base 4 and the flange 111. When the drive motor 1 rotates, it drives the mother body 2 to rotate, causing the daughter body 3, which cooperates with the mother body 2, to move up and down. The top of the daughter body 3 drives the spindle 6 and the bearing 7 to move up and down. The bearing 7 slides in the inclined groove 51 of the slider 5, driving the sliders 5 on both sides to move closer or further apart.

[0044] In this embodiment, the fixing member 8 is a pointed screw, and a V-groove 61 is machined in the middle of the mandrel to surround the mandrel 6 in the circumferential direction. When fixing, the tail of the pointed screw is engaged in the V-groove 61. The side wall of the V-groove 61 can play an auxiliary positioning role, ensuring that the midpoint of the mandrel 6 after fixing is collinear with the central axis of the sub-body, and ensuring that the mandrel 6 is subjected to uniform force on the left and right sides when moving.

[0045] The present invention also provides a method for assembling an electric gripper with an interlaced slider, comprising the following steps:

[0046] S1. Provides a drive motor 1, a telescopic assembly, a base 4, a slider 5, a spindle 6, a bearing 7, and a fixing member 8. The telescopic assembly includes an outer mother body 2 and an inner daughter body 3. The daughter body 3 and the mother body 2 are threadedly connected. The daughter body 3 includes a retracted state that moves to a limited position along a first direction and an extended state that moves to a limited position along a second direction. The drive motor 1 is used to drive the mother body 2 to rotate and drive the daughter body 3 to extend or retract. The base 4 is provided with a slide groove 41. The inner side of the slider 5 is provided with an inclined groove 51. The side wall of the slide groove 41 is provided with a first through hole 43. The side of the slider 5 is provided with a second through hole 52 that connects to the inclined groove 51. The end of the slider 5 is provided with a third through hole 55.

[0047] S2. Place the base 4 onto the sub-body 3 of the telescopic assembly, press the two bearings 7 into the inclined grooves 51 of the two sliders 5, and slide them into the grooves 41 of the base 4.

[0048] S3. Control the telescopic component's sub-body 3 to be in a retracted state, at which time the central axis 6 of the first through hole 43, the second through hole 52, and the first mounting hole 31 are collinear;

[0049] S4. Pass the mandrel 6 through the first through hole 43, the second through hole 52 and the first mounting hole 31 from one side of the first through hole 43, so that the bearing 7 is sleeved on both ends of the mandrel 6;

[0050] S5. Control the extension component's sub-body 3 to be in the extended state, at which time the central axis 6 of the second mounting hole 32 and the third through hole 55 are collinear;

[0051] S6. Pass the tail end of the fastener 8 through the third through hole 55 and the second mounting hole 32 in sequence and abut against the side wall of the spindle 6.

[0052] The side wall of the mandrel 6 is provided with a V-groove 61 that surrounds the mandrel 6 in the circumferential direction, and the tail end of the fastener 8 is engaged in the V-groove 61.

[0053] The electric gripper of the staggered slider of this invention uses bearing 7 and spindle 6 to drive the slider 5 to open and close by moving within the inclined groove 51, replacing sliding friction with rolling friction between bearing 7 and guide rail, thus reducing friction during movement; the slide groove 41 and slider 5 slide together, and the intermediate stop block 9 reduces the sliding gap, thus reducing the processing cost of slide groove 41; the spindle 6 only needs to be positioned and locked by a single fixing part 8, making installation simple and convenient; a first through hole 43, a second through hole 52 and a first mounting hole 31 are respectively machined on the base 4, slider 5 and sub-body 3, so that the first through hole 43, the second through hole 52 and the first mounting hole 31 are coaxial during assembly, which facilitates the insertion and installation of spindle 6 from the side, resulting in an ingenious structure and improved assembly efficiency.

[0054] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for assembling an electric gripper with an interlaced slider, characterized in that, Including the following steps: S1. A drive motor, a telescopic assembly, a base, a slider, a spindle, a bearing, and a fixing component are provided. The telescopic assembly includes an outer mother body and an inner daughter body. The daughter body and the mother body are threadedly connected. The daughter body includes a retracted state that moves to a limited position along a first direction and an extended state that moves to a limited position along a second direction. The drive motor is used to drive the mother body to rotate and drive the daughter body to extend or retract. The base is provided with a sliding groove. The inner side of the slider (5) is provided with an inclined groove (51). The side wall of the sliding groove is provided with a first through hole (43). The side of the slider (5) is provided with a second through hole (52) that connects to the inclined groove (51). The side of the slider away from the telescopic assembly is provided with a third through hole (55). The side wall of the daughter body is provided with a first mounting hole that connects to the inclined grooves of the two sliders. The end of the daughter body is provided with a second mounting hole that connects to the first mounting hole. S2. The base is fitted onto the sub-body of the telescopic assembly, and the two bearings (7) are pressed into the inclined grooves (51) of the two sliders and slidably placed in the groove of the base; S3. Control the sub-body of the telescopic component to be in a retracted state, at which time the central axes of the first through hole (43), the second through hole (52) and the first mounting hole (31) are collinear; S4. Pass the mandrel (6) through the first through hole (43), the second through hole and the first mounting hole (31) from one side of the first through hole (43) so that the bearing (7) is sleeved on both ends of the mandrel (6); S5. Control the sub-body of the telescopic assembly to be in the extended state, at which time the central axes of the second mounting hole and the third through hole are collinear, and the end of the sub-body is close to the top of the slider; S6. Pass the tail end of the fastener through the third through hole and the second mounting hole in sequence and abut it against the side wall of the mandrel.

2. The assembly method of the electric gripper of the staggered slider according to claim 1, characterized in that: The side wall of the mandrel (6) is provided with a V-groove (61) that surrounds the mandrel (6) in the circumferential direction, and the tail end of the fastener is engaged in the V-groove (61).

3. The assembly method of the electric gripper with the staggered slider according to claim 1, characterized in that: A stop (9) is provided between the sliders (5), the stop (9) is in contact with the sliders (5) on both sides, and the stop (9) is connected to the bottom of the slide groove (41).

4. The assembly method of the electric gripper of the staggered slider according to claim 3, characterized in that: The stroke length of the sub-body (3) is provided with side mounting walls (33) parallel to the sliders (5) on both sides. The distance between the two side mounting walls (33) is X, and the radius of the sub-body (3) is R. X = 2*R*sinα, 35°≤α≤45°.

5. The assembly method of the electric gripper with the staggered slider according to claim 4, characterized in that: The thickness of the stop (9) is greater than X.

6. The assembly method of the electric gripper with the staggered slider according to claim 1, characterized in that: The top of the slider (5) is provided with a boss (54), which extends above the adjacent slider (5) and is provided with a plurality of connecting holes (53).

7. The assembly method of the electric gripper of the staggered slider according to claim 1, characterized in that: The drive motor is a hollow rotary motor, located on the outside of the telescopic assembly, used to drive the mother body to rotate; Alternatively, the drive motor may include an output shaft connected to the main body of the telescopic assembly and located at the end of the main body away from the secondary body, for driving the main body to rotate.

8. The assembly method of the electric gripper with the staggered slider according to claim 7, characterized in that: The electric gripper includes a housing (10) and a support sleeve (11). The main body is a nut, and the secondary body is a lead screw. The drive motor (1) is located inside the housing (10). One end of the support sleeve (11) abuts against the base (4), and the other end is connected to the inner wall of the housing (10). The end of the support sleeve (11) away from the base (4) is provided with an inward flange (111). The main body (2) is located inside the support sleeve (11) and is confined between the base (4) and the flange (111).

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