Mechanical arm with stably fixed chassis

Abstract

The utility model relates to the technical field of mechanical arms, in particular to a mechanical arm with a stably fixed chassis. Comprising an arm body, a fixing disc is fixed to the bottom of the arm body, a connecting disc is arranged at the bottom of the fixing disc, first clamping plates are symmetrically and slidably connected to the interior of the outer side of the fixing disc, second clamping plates are symmetrically and slidably connected to the interior of the bottom end of the connecting disc, and limiting sliding blocks are fixed to the two ends of each second clamping plate and slidably connected with the connecting disc; a first adjusting mechanism used for adjusting the multiple first clamping plates to move at the same time is installed in the fixing disc. According to the mechanical arm with the stably-fixed chassis, when the mechanical arm is used, the mechanical arm can be fixed to a mounting plate through the first clamping plate and the second clamping plate, the mechanical arm can enter the first clamping plate and the second clamping plate through fastening bolts, double fixing is achieved, and meanwhile the mechanical arm can be fixed according to the different thicknesses of the mounting plate; and the assembling plate is replaced.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical arm technical field especially relates to a chassis fixed stable mechanical arm. BACKGROUND

[0002] The mechanical arm needs to move constantly in the production or operation process, so the position relationship between different arms of the mechanical arm needs to change. In particular, the arms often need to rotate relative to each other. For such movement, a shaft and a shaft hole are usually used to cooperate, so that the two arms can rotate relative to each other.

[0003] The patent document with publication number (CN220373266U) discloses a mechanical arm, which comprises a first arm, a second arm, a shaft, a shaft hole, a first screw, and a fixing member. The first arm comprises a body and a shaft. The shaft is arranged at one end of the body. The second arm is provided with a shaft hole, and the shaft is arranged in the shaft hole. The first screw is coaxial with the shaft and threadedly connected with the shaft. The first screw is used to fix the relative position of the shaft and the shaft hole. The fixing member is fixed relative to the first arm. The fixing member is in contact with the first screw in the circumferential direction of the first screw. The utility model technical scheme can improve the reliability of the connection at the rotating shaft of the mechanical arm.

[0004] When using the above-mentioned technology, it is found that the existing technology has the following technical problems: the existing mechanical arm is often fixed only by bolts when in use, which is easy to cause the bolts to loosen and the mechanical arm to shake when vibrating. Therefore, a mechanical arm with a fixed and stable chassis is designed to provide another technical solution to the above technical problems. UTILITY MODEL CONTENTS

[0005] Therefore, it is necessary to provide a mechanical arm with a fixed and stable chassis to solve the technical problem that the existing mechanical arm is often fixed only by bolts when in use, which is easy to cause the bolts to loosen and the mechanical arm to shake when vibrating.

[0006] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of mechanical arm of chassis fixed stability, including machine arm body, the bottom of the machine arm body is fixed with fixed disc, the bottom of the fixed disc is provided with connecting disc, the inside of the outside of the fixed disc is symmetrically slidably connected with first clamping plate, the inside of the bottom end of the connecting disc is symmetrically slidably connected with second clamping plate, the both ends of the second clamping plate are fixed with limiting slide, the limiting slide is slidably connected with connecting disc, the inside of the fixed disc is equipped with first adjusting mechanism for adjusting the simultaneous movement of multiple first clamping plate, the inside of the connecting disc is equipped with second adjusting mechanism for adjusting the simultaneous movement of multiple second clamping plate, the first adjusting mechanism and second adjusting mechanism are all including driven bevel gear, rotating shaft and threaded column, the inside of the fixed disc and connecting disc is rotatably connected with rotating shaft, the one end of the rotating shaft is fixed with driven bevel gear, the other end of the rotating shaft is fixed with threaded column.

[0008] As a preferred embodiment of the utility model provides the mechanical arm of chassis fixed stability, the both ends between the fixed disc and connecting disc are provided with assembly plate.

[0009] As a preferred embodiment of the utility model provides the mechanical arm of chassis fixed stability, the inside of the four end angles of the connecting disc is slidably connected with assembly bolt, the top of the assembly bolt is screwed after penetrating assembly plate and is connected with fixed disc.

[0010] As a preferred embodiment of the utility model provides the mechanical arm of chassis fixed stability, the top inside of the fixed disc is provided with first adjusting bevel gear, the bottom of the first adjusting bevel gear is engagedly connected with corresponding driven bevel gear, the inside of the fixed disc is fixed with adjusting drive motor, the output of the adjusting drive motor is connected with first adjusting bevel gear, the top inside of the connecting disc is provided with second adjusting bevel gear, the bottom of the second adjusting bevel gear is engagedly connected with corresponding driven bevel gear, and synchronous assembly is installed between the first adjusting bevel gear and second adjusting bevel gear.

[0011] As a preferred embodiment of the utility model provides the mechanical arm of chassis fixed stability, the synchronous assembly includes synchronous block, tension spring and rotating column, the bottom of the rotating column is fixed with second adjusting bevel gear, the outside of the rotating column is rotatably connected with connecting disc, the outside of the rotating column is slidably connected with fixed disc, the inside of the top of the rotating column is slidably connected with synchronous block, the top of the rotating column is fixed with first adjusting bevel gear, the bottom inside of the rotating column is fixed with tension spring, and the top of the tension spring is fixed with synchronous block.

[0012] As a preferred embodiment of the utility model provides the mechanical arm of chassis fixed stability, the bottom one end of the first clamping plate and the top one end of the second clamping plate are all provided with extrusion bevel.

[0013] As a preferred implementation form of the mechanical arm with stable chassis fixing provided by the utility model, a fastening bolt is arranged at the top of one end of the first clamping plate, and the bottom of the fastening bolt is threadedly connected with a fixing nut after penetrating through the corresponding first clamping plate and second clamping plate.

[0014] As a preferred implementation form of the mechanical arm with stable chassis fixing provided by the utility model, a fastening bolt is arranged at the top of one end of the first clamping plate, and the bottom of the fastening bolt is threadedly connected with a fixing nut after penetrating through the corresponding first clamping plate and second clamping plate.

[0015] It can be seen without doubt that the above technical solutions of the application can certainly solve the technical problems to be solved by the application.

[0016] Meanwhile, the above technical solutions have at least the following beneficial effects:

[0017] The mechanical arm with stable chassis fixing provided by the utility model can fix the mechanical arm on the mounting plate through the first clamping plate and second clamping plate when the mechanical arm is used, and the fastening bolt can enter the inside of the first clamping plate and second clamping plate, so that double fixing is realized, and the assembly plate can be replaced according to the thickness of the mounting plate.

[0018] Through the cooperation of the sink, the rotation-stopping sleeve and the compression spring, the fastening bolt and the fixing nut can be cooperated to realize the double fixing of the first clamping plate and second clamping plate, and the fastening bolt is located inside the sink and the fixing nut is located inside the rotation-stopping groove, so that the fixing nut is prevented from rotating outside the fastening bolt due to vibration and causing fastening loosening.

[0019] Through the cooperation of the sink, the rotation-stopping sleeve and the compression spring, the fastening bolt and the fixing nut can be cooperated to realize the double fixing of the first clamping plate and second clamping plate, and the fastening bolt is located inside the sink and the fixing nut is located inside the rotation-stopping groove, so that the fixing nut is prevented from rotating outside the fastening bolt due to vibration and causing fastening loosening. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is the whole structure schematic view of the utility model;

[0022] Figure 2 It is the assembly view of the utility model;

[0023] Figure 3 It is the structure schematic view of the assembly plate of the utility model;

[0024] Figure 4 It is the internal structure schematic view of the fixed disc of the utility model;

[0025] Figure 5 It is the internal structure schematic view of the rotating column of the utility model;

[0026] Figure 6 It is the internal structure schematic view of the connecting disc of the utility model;

[0027] Figure 7 It is the internal structure schematic view of the second clamping plate of the utility model.

[0028] In the drawing: 1, arm main body;2, fixed disc;3, connecting disc;4, assembly plate;5, assembly bolt;6, first clamping plate;7, extrusion inclined surface;8, sink;9, adjusting drive motor;10, first adjusting bevel gear;11, driven bevel gear;12, rotating shaft;13, threaded column;14, synchronous block;15, tension spring;16, rotating column;17, second adjusting bevel gear;18, second clamping plate;19, limit sliding block;20, fastening bolt;21, fixed nut;22, fastening groove;23, rotation stop sleeve;24, rotation stop groove;25, compression spring. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following will be further described in detail by combining with the drawings and examples. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model.

[0030] In order to make the person in the technical field better understand the utility model scheme, the following will be combined with the drawings, and the technical scheme in the utility model example is clearly and completely described.

[0031] It should be noted that, in the case of no conflict, the examples and the features and technical schemes in the examples in the utility model can be combined with each other.

[0032] It should be noted that: similar signs and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0033] Reference Figures 1-7 A mechanical arm with stable chassis fixing, comprising a mechanical arm body 1, a fixing disc 2 is fixed at the bottom of the mechanical arm body 1, a connecting disc 3 is arranged at the bottom of the fixing disc 2, so that the external mounting plate can be located outside the fixing disc 2 and the connecting disc 3, and the assembling plates 4 are arranged at both ends between the fixing disc 2 and the connecting disc 3, and the shape of the assembling plate 4 is semicircular or arc-shaped, so that the distance between the fixing disc 2 and the connecting disc 3 can be adjusted by the assembling plate 4 with different thicknesses, and the assembling plate 4 can be installed in the mounting plate with different thicknesses;

[0034] The assembling bolts 5 are slidably connected inside the four end corners of the connecting disc 3, the top end of the assembling bolt 5 penetrates the assembling plate 4 and is threadedly connected with the fixing disc 2, so that the assembling bolt 5 enters from the bottom of the connecting disc 3, and the top end of the assembling bolt 5 penetrates the assembling plate 4 and enters the threadedly connected inside of the fixing disc 2, so that the fixing disc 2, the connecting disc 3 and the assembling plate 4 are integrally installed, and the assembling plate 4 is not movable between the fixing disc 2 and the connecting disc 3, and the first clamping plates 6 are symmetrically slidably connected inside the fixing disc 2, so that the first clamping plates 6 can be extended or retracted inside the fixing disc 2 by sliding.

[0035] In this embodiment, the number of the first clamping plates 6 is four, and in other embodiments, the number can be two, six or other symmetrical arrangements.

[0036] The second clamping plates 18 are symmetrically slidably connected inside the bottom end of the connecting disc 3, so that the second clamping plates 18 can be translated to extend or retract inside the connecting disc 3 by sliding, and the limiting sliding blocks 19 are fixed at both ends of the second clamping plates 18, and the limiting sliding blocks 19 are slidably connected with the connecting disc 3, so that the second clamping plates 18 can be prevented from being separated from the connecting disc 3 by the limiting sliding blocks 19 during translation.

[0037] The first adjusting mechanism for adjusting the simultaneous movement of the plurality of first clamping plates 6 is installed inside the fixing disc 2, the second adjusting mechanism for adjusting the simultaneous movement of the plurality of second clamping plates 18 is installed inside the connecting disc 3, and the first adjusting mechanism and the second adjusting mechanism each comprise a driven bevel gear 11, a rotating shaft 12 and a threaded column 13, the rotating shaft 12 is rotatably connected inside the fixing disc 2 and the connecting disc 3, one end of the rotating shaft 12 is fixed with the driven bevel gear 11, so that the rotation of the driven bevel gear 11 drives the corresponding rotating shaft 12 to rotate, and the rotating shaft 12 can stably rotate in the inside of the fixing disc 2 or the connecting disc 3, the other end of the rotating shaft 12 is fixed with the threaded column 13, and the outside of the threaded column 13 is threadedly connected with the first clamping plate 6 or the second clamping plate 18, so that the rotation of the threaded column 13 drives the corresponding first clamping plate 6 or second clamping plate 18 to translate.

[0038] The top end of the fixed disc 2 is provided with a first adjusting bevel gear 10, the bottom end of the first adjusting bevel gear 10 is meshed and connected with a corresponding driven bevel gear 11, so that the rotation of the first adjusting bevel gear 10 drives the four meshed driven bevel gears 11 to rotate at the same time, the inside of the fixed disc 2 is fixedly provided with an adjusting driving motor 9, the output end of the adjusting driving motor 9 is connected with the first adjusting bevel gear 10, so that the work of the adjusting driving motor 9 drives the first adjusting bevel gear 10 to rotate;

[0039] The top end of the connecting disc 3 is provided with a second adjusting bevel gear 17, the bottom of the second adjusting bevel gear 17 is meshed and connected with a corresponding driven bevel gear 11, so that the rotation of the second adjusting bevel gear 17 can drive the corresponding multiple driven bevel gears 11 to rotate synchronously, a synchronous assembly is installed between the first adjusting bevel gear 10 and the second adjusting bevel gear 17, the synchronous assembly includes a synchronous block 14, a tension spring 15 and a rotating column 16, the bottom of the rotating column 16 is fixed with the second adjusting bevel gear 17, so that the rotation of the rotating column 16 drives the second adjusting bevel gear 17 to rotate, the outer side of the rotating column 16 is rotatably connected with the connecting disc 3, so that the rotating column 16 can only rotate in the inside of the connecting disc 3;

[0040] The outer side of the rotating column 16 is slidably connected with the fixed disc 2, so that the rotating column 16 can rotate and also can slide in height in the inside of the bottom end of the fixed disc 2, the synchronous block 14 is slidably connected in the inside of the top end of the rotating column 16, the synchronous block 14 can only be adjusted in lifting in the inside of the top end of the rotating column 16, but the rotation of the synchronous block 14 drives the rotating column 16 to rotate synchronously, the top of the rotating column 16 is fixed with the first adjusting bevel gear 10, so that the rotation of the first adjusting bevel gear 10 drives the rotating column 16 to rotate through the synchronous block 14, the bottom end in the inside of the rotating column 16 is fixed with the tension spring 15, the top end of the tension spring 15 is fixed with the synchronous block 14, so that when the rotating column 16 moves downward outside the synchronous block 14, the tension spring 15 is stretched, and then the distance between the fixed disc 2 and the connecting disc 3 can be adjusted according to the different thicknesses of the assembly plate 4, and the synchronous rotation of the first adjusting bevel gear 10 and the second adjusting bevel gear 17 is not affected;

[0041] In the embodiment, the shape of the rotating column 16 is a rotary body, the shape of the synchronous block 14 is a rectangle, a special shape or the like, and the shape that can make the rotation of the synchronous block 14 drive the rotating column 16 to rotate synchronously is all available.

[0042] The bottom end of the first clamping plate 6 and the top end of the second clamping plate 18 are provided with extrusion inclined surfaces 7, so that the extension of the first clamping plate 6 and the second clamping plate 18 can pass through the extrusion inclined surfaces 7 and be located on the top or bottom of the mounting plate, the top end of the first clamping plate 6 is provided with a fastening bolt 20, the bottom of the fastening bolt 20 penetrates through the corresponding first clamping plate 6 and the second clamping plate 18 and is threadedly connected with a fixing nut 21, so that the corresponding first clamping plate 6 and the second clamping plate 18 can be connected through the fastening bolt 20 and the fixing nut 21, and double fixing of the mechanical arm is realized.

[0043] The inside of the top end of the first clamping plate 6 is provided with a sink groove 8, the sink groove 8 is in sliding connection with the fastening bolt 20, so that the top of the fastening bolt 20 can be hidden through the sink groove 8, and the rotation of the top end of the fastening bolt 20 is limited through the sink groove 8, the inside of the end of the second clamping plate 18 and the position corresponding to the sink groove 8 are provided with a fastening groove 22, so that the bottom of the fastening bolt 20 can enter the inside of the fastening groove 22 through the sink groove 8, the inside of the bottom end of the second clamping plate 18 and the position corresponding to the fastening groove 22 are in sliding connection with a rotation stopping sleeve 23, so that the rotation stopping sleeve 23 can only slide up and down in the inside of the second clamping plate 18 and cannot rotate, the inside of the bottom end of the rotation stopping sleeve 23 is provided with a rotation stopping groove 24, the rotation stopping groove 24 is in sliding connection with the fixing nut 21, so that the rotation of the fixing nut 21 can be limited through the rotation stopping groove 24, the top of the rotation stopping sleeve 23 and the inside of the second clamping plate 18 are fixedly provided with a compression spring 25, so that the bottom of the fastening bolt 20 can enter the inside of the compression spring 25 and the rotation stopping sleeve 23 from the inside of the fastening groove 22, and then the bottom of the fastening bolt 20 can be extended.

[0044] In the embodiment, the shape of the rotation stopping groove 24 can be a six-sided groove, and in other embodiments, the shape of the rotation stopping groove 24 can be twelve-sided or eighteen-sided, etc., so that the rotation stopping groove 24 can have at least one time of the number of the fixing nut 21.

[0045] The use process of the mechanical arm with the fixed and stable base plate is as follows: during use, first, the thickness of the mounting plate of the installation position is determined according to the needs, the corresponding thickness of the assembly plate 4 is selected and installed between the two ends of the fixed disc 2 and the connecting disc 3, and the height position of the rotating column 16 can be adjusted on the outside of the synchronous block 14 according to the assembly plate 4 with different thicknesses, then the assembly bolt 5 is installed from the bottom of the connecting disc 3, the top of the connecting disc 3 penetrates through the connecting disc 3 and the assembly plate 4 in sequence and is threadedly connected with the fixed disc 2, so that the fixed disc 2, the assembly plate 4 and the connecting disc 3 can be integrated.

[0046] Then the bottom of the connecting disc 3 is installed into the corresponding mounting plate, and the first adjusting bevel gear 10 is driven to rotate by adjusting the driving motor 9, so that the rotation of the first adjusting bevel gear 10 drives the second adjusting bevel gear 17 to rotate synchronously through the cooperation of the synchronous block 14 and the rotating column 16, so that the rotation of the first adjusting bevel gear 10 and the second adjusting bevel gear 17 drives the corresponding driven bevel gear 11 to rotate, the rotation of the driven bevel gear 11 drives the corresponding threaded column 13 to rotate through the corresponding rotating shaft 12, and the rotation of the threaded column 13 drives the first clamping plate 6 or the second clamping plate 18 connected by threads to move, so that the movement of the first clamping plate 6 and the second clamping plate 18 moves on the top and the bottom of the mounting plate through the extrusion slope 7, so as to realize the installation and fixation of the chassis of the mechanical arm.

[0047] Then the bottom of the fastening bolt 20 is inserted into the fastening groove 22 from the inside of the sink groove 8 and extends out of the second clamping plate 18, and then the fixing nut 21 is installed at the bottom of the fastening bolt 20 through threaded connection, and at the same time, the sleeve wrench extrudes the rotation stopping sleeve 23, the rotation stopping sleeve 23 rises in the second clamping plate 18 and drives the compression spring 25 to compress, and then the rotation of the fixing nut 21 is driven by the sleeve wrench, so that the fixing nut 21 rises outside the fastening bolt 20, and the rotation of the fastening bolt 20 is stopped by the sink groove 8, when the installation of the fixing nut 21 outside the fastening bolt 20 is completed, at this time, the rotation stopping sleeve 23 is not extruded by external force through the descent of the sleeve wrench, and the rotation stopping sleeve 24 is located outside the fixing nut 21 through the rebound of the compression spring 25 after compression, so as to limit the rotation of the fixing nut 21 through the rotation stopping groove 24, thereby preventing the fastening bolt 20 and the fixing nut 21 from being separated due to vibration and loosening.

[0048] The preferred embodiments disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details and limit the utility model to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents.

Claims

1. A mechanically stable manipulator with a fixed base, characterized in that The utility model provides a kind of machine arm, including machine arm body (1), the bottom of machine arm body (1) is fixed with fixed disc (2), the bottom of fixed disc (2) is provided with connecting disc (3), the inside of the outside of fixed disc (2) is symmetrically slidably connected with first clamping plate (6), the inside of the bottom end of connecting disc (3) is symmetrically slidably connected with second clamping plate (18), the both ends of second clamping plate (18) are fixed with limit slide (19), limit slide (19) and connecting disc (3) are slidably connected, the inside of fixed disc (2) is installed with first adjusting mechanism for adjusting the simultaneous movement of multiple first clamping plate (6), the inside of connecting disc (3) is installed with second adjusting mechanism for adjusting the simultaneous movement of multiple second clamping plate (18), and first adjusting mechanism and second adjusting mechanism all include driven bevel gear (11), rotating shaft (12) and threaded column (13), the inside of fixed disc (2) and connecting disc (3) is rotatably connected with rotating shaft (12), one end of rotating shaft (12) is fixed with driven bevel gear (11), and the other end of rotating shaft (12) is fixed with threaded column (13).

2. The chassis-stabilized robotic arm of claim 1, wherein, The both ends between the fixed disc (2) and the connecting disc (3) are provided with the assembling plate (4).

3. The chassis-stabilized robotic arm of claim 2, wherein, The inside of the four end corners of the connecting disc (3) is slidably connected with the assembling bolt (5), and the top end of the assembling bolt (5) is screwed with the fixed disc (2) after penetrating through the assembling plate (4).

4. The chassis-stabilized robotic arm of claim 1, wherein, The top end inside the fixed disc (2) is provided with a first adjusting bevel gear (10), the bottom end of the first adjusting bevel gear (10) is meshingly connected with the corresponding driven bevel gear (11), the inside of the fixed disc (2) is fixed with an adjusting drive motor (9), the output end of the adjusting drive motor (9) is connected with the first adjusting bevel gear (10), the top end inside the connecting disc (3) is provided with a second adjusting bevel gear (17), the bottom of the second adjusting bevel gear (17) is meshingly connected with the corresponding driven bevel gear (11), and a synchronous assembly is installed between the first adjusting bevel gear (10) and the second adjusting bevel gear (17).

5. The chassis-stabilized robotic arm of claim 4, wherein, The synchronous assembly includes a synchronous block (14), a tension spring (15), and a rotating column (16), the bottom of the rotating column (16) is fixed with the second adjusting bevel gear (17), the outside of the rotating column (16) is rotatably connected with the connecting disc (3), the outside of the rotating column (16) is slidably connected with the fixed disc (2), the inside of the top end of the rotating column (16) is slidably connected with the synchronous block (14), the top of the rotating column (16) is fixed with the first adjusting bevel gear (10), the bottom end inside the rotating column (16) is fixed with the tension spring (15), and the top end of the tension spring (15) is fixed with the synchronous block (14).

6. The chassis-stabilized robotic arm of claim 1, wherein, The bottom end of the first clamping plate (6) and the top end of the second clamping plate (18) are both provided with an extrusion inclined surface (7).

7. The chassis-stabilized robotic arm of claim 1, wherein, The top of one end of the first clamping plate (6) is provided with a fastening bolt (20), and the bottom of the fastening bolt (20) is threadedly connected with a fixed nut (21) after penetrating through the corresponding first clamping plate (6) and second clamping plate (18).

8. The chassis-stabilized robotic arm of claim 7, wherein, The inside of one end of the top of the first clamping plate (6) is provided with a sinking groove (8), the inside of one end of the second clamping plate (18) and the position corresponding to the sinking groove (8) are provided with a fastening groove (22), the inside of the bottom end of the second clamping plate (18) and the position corresponding to the fastening groove (22) are slidably connected with a rotation-stopping sleeve (23), the inside of the bottom end of the rotation-stopping sleeve (23) is provided with a rotation-stopping groove (24), the rotation-stopping groove (24) is slidably connected with the fixed nut (21), and the top of the rotation-stopping sleeve (23) and the inside of the second clamping plate (18) are fixed with a compression spring (25).

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