A frame-type workpiece positioning fixture mechanism for a robot workstation

Abstract

This invention belongs to the field of positioning fixture technology and discloses a robot workstation frame-type workpiece positioning fixture mechanism, including a support base. A first inner clamp and a second inner clamp are symmetrically installed on opposite sides of the center of the support base. A first outer clamp and a second outer clamp are movably sleeved on opposite sides of the support base. This invention uses pneumatic pressure to extend the first and second bellows in the first telescopic assembly. The movement of the first movable base drives the first and second outer clamps to pressurize the frame supports, bringing the four frame supports closer together. The first and second inner clamps provide support for the inner sides of the frame supports, achieving a preliminary fixing effect. This ensures that the four frame supports can be arranged in a rectangle, achieving a good positioning effect, and is also suitable for positioning and aligning frame supports of different sizes.

Description

Technical Field

[0001] This invention belongs to the field of positioning fixture technology, specifically a robot workstation frame-type workpiece positioning fixture mechanism. Background Technology

[0002] A robotic workstation refers to a group of equipment that uses one or more robots as the main components, along with corresponding peripheral equipment such as positioners, conveyors, and tooling fixtures, or with the assistance of human operators, to complete a relatively independent task or process. Frame-shaped workpieces are a special type of workpiece, and they are required in the construction of a robotic workstation.

[0003] Patent application CN201310270022.5 discloses a robot workstation frame-type workpiece clamping fixture mechanism, including a frame-type workpiece support that matches the frame-type workpiece. Four side support members are equipped with side frame positioning blocks that match the workpiece side frames. A clamping cylinder is installed inside each side frame positioning block. The push rod of the clamping cylinder extends to stably fix the four side frames of the frame-type workpiece in positions matching the side frame positioning blocks. A workpiece ejection mechanism is also provided on the side frame support, matching the side frames of the frame-type workpiece. This robot workstation frame-type workpiece clamping fixture mechanism has a clever and reasonable structure. Through the clamping cylinder and side frame positioning blocks, it can directly position and fix the four side frames of a scattered frame-type workpiece onto the frame-type workpiece support. This eliminates the need for a cumbersome and error-prone off-machine welding process; the workpiece can be directly fixed and welded onto the workpiece support, greatly improving work efficiency and significantly reducing work errors.

[0004] In the existing technology, the frame bracket is usually fixed by pressure using a cylinder. Although the frame bracket can be fixed, the two opposing frame brackets need to be manually adjusted to ensure alignment. There is a certain degree of error in manual adjustment. When the two opposing frame brackets are not accurately aligned, the finished product may not be rectangular but parallelogram-shaped, which will affect its use. Therefore, an improvement is needed. Summary of the Invention

[0005] To address the problems mentioned in the background section, this invention provides a robot workstation frame-type workpiece positioning fixture mechanism, which solves the problem of inaccurate positioning and alignment in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a robot workstation frame-type workpiece positioning fixture mechanism, comprising a support base, wherein a first inner clamp and a second inner clamp are symmetrically installed on opposite sides of the middle of the support base, a first outer clamp and a second outer clamp are movably sleeved on opposite sides of the support base, a first movable clamping plate is movably sleeved on the middle of the first outer clamp, a second movable clamping plate is movably sleeved on the middle of the second outer clamp, a first fixing block and a second fixing block are fixedly installed on the outer edges of opposite sides of the support base, a first movable component is fixedly installed on the middle of the first fixing block, a first telescopic component is installed inside the first movable component, a first adjusting component is movably sleeved inside the lower end of the second outer clamp, a first locking component is engaged at the bottom of the first adjusting component, a power component is fixedly installed in the middle of the bottom of the support base, a second adjusting component is movably sleeved inside the lower end of the first outer clamp, and a second locking component is engaged at the bottom of the second adjusting component.

[0007] Preferably, the first inner clamp includes a first clamping plate, a first limiting slider, a first connecting base plate, and a first spring; the second inner clamp includes a second clamping plate, a second limiting slider, a second connecting base plate, and a second spring. The bottom of the first clamping plate is fixedly connected to the first limiting slider, the bottom of the first limiting slider is fixedly connected to the first connecting base plate, and the first spring is fixedly installed on one side of the first limiting slider. The first inner clamp and the second inner clamp have the same structural position but different dimensions.

[0008] Preferably, the first outer clamp includes a first connecting plate, a first limiting slide plate, a third limiting slider, and a third connecting base plate. The first limiting slide plate is slidably connected to the first movable clamping plate. The first limiting slide plate is fixedly connected to both ends of the first connecting plate. The third limiting slider, which is slidably connected to the support base, is fixedly installed at the bottom of the first connecting plate. The third connecting base plate, which limits the second adjusting component, is fixedly installed at the bottom of the third limiting slider. The second outer clamp includes a second connecting plate, a second limiting slide plate, a fourth limiting slider, and a fourth connecting base plate. The first inner clamp and the second inner clamp have the same structural position but different dimensions. The second limiting slide plate is slidably connected to the second movable clamping plate.

[0009] Preferably, the second movable clamping plate includes two second movable plates, a second ball bearing assembly, and a fourth spring. The second movable plate is movably connected to the second ball bearing assembly on the side near the middle of the support base. The second ball bearing assembly includes a sixth spring and a ball bearing. The fourth spring is fixedly installed on the opposite side of the two second movable plates. The second movable plate is slidably connected to the second limiting slide plate through rollers at the upper and lower ends.

[0010] Preferably, the first movable clamping plate includes two first movable plates, a first ball bearing assembly, and a third spring. The first movable plate is movably connected to the first ball bearing assembly on the side near the middle of the support base. The first ball bearing assembly has the same structure as the second ball bearing assembly. The third spring is fixedly installed on the opposite side of the two first movable plates. The first movable plate is slidably connected to the first limiting slide plate through rollers at the upper and lower ends.

[0011] Preferably, there are four first movable components, which are respectively fixedly installed inside two first fixed blocks and two second fixed blocks. Each first movable component includes a first connecting base fixed inside the two first fixed blocks or two second fixed blocks. A first movable base is movably sleeved inside the first connecting base. The first movable base is fixedly connected to a fourth connecting base plate or a third connecting base plate. A fifth spring is movably sleeved on the outer surface of the first movable base. One end of the fifth spring is fixedly connected to the first movable base, and the other end is fixedly connected to the inner wall of the first connecting base. The fifth spring is in a stretched state. A first pushing component is movably sleeved on the end of the first movable base away from the first connecting base. A first connecting toothed plate is fixedly installed on the end of the first pushing component away from the first connecting base.

[0012] Preferably, the first telescopic component includes a first corrugated pipe, one end of which is fixedly connected to a first connecting straight pipe that passes through the middle of the first movable base, and the end of the first connecting straight pipe away from the first corrugated pipe is fixedly connected to a second corrugated pipe.

[0013] Preferably, the first adjusting component includes a first mating gear and a first helical gear. The first helical gear is fixedly installed at the bottom of the first mating gear. The first mating gear meshes with the first connecting toothed plate. The second adjusting component has the same structure as the first adjusting component, and its positional relationship with the first movable component is also the same as that of the first adjusting component.

[0014] Preferably, the first locking assembly includes a first locking rod, one end of which is fixedly connected to a second helical gear that meshes with the first helical gear. The end of the first locking rod near the second helical gear is rotatably located inside the two fourth connecting base plates or the two third connecting base plates. The second locking assembly has the same structure as the first locking assembly, and the positional relationship between the first locking assembly and the first adjusting assembly and the second locking assembly and the second adjusting assembly are also the same.

[0015] Preferably, the power assembly includes a sealed box fixedly connected to the bottom of the support base. A pressure plate is piston-connected to the upper end of the inner cavity of the sealed box. A telescopic rod is fixedly connected to the top of the pressure plate. A first connecting air pipe and a second connecting air pipe are fixedly connected to opposite sides of the bottom of the sealed box, and both the first connecting air pipe and the second connecting air pipe are fixedly connected to the first corrugated pipe in the first telescopic assembly.

[0016] Beneficial effects

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention uses air pressure to extend the first and second corrugated tubes in the first telescopic assembly, thereby moving the first movable base and the first pushing assembly. The movement of the first movable base causes the first and second outer clamps to pressurize the frame brackets, bringing the four frame brackets closer together. The first and second inner clamps provide support for the inner side of the frame brackets, achieving a preliminary fixing effect. The second movable plate can pass through the middle of the first movable plate without obstruction, ensuring that the four frame brackets can be arranged in a rectangle, achieving a good positioning effect. It is also suitable for positioning and aligning frame brackets of different sizes.

[0019] This invention utilizes the design of a second movable clamping plate and a first movable clamping plate. The second movable plate can pass through the middle of the first movable plate without obstruction, allowing the four frame supports to align into a rectangle under pressure. Once the four frame supports are aligned, the first and second outer clamps continue to move under pressure. Since the four frame supports are already formed, only the first and second movable clamping plates can be squeezed, causing the two first movable plates to move along the sliding grooves on the surface of the first limiting slide plate. The two first movable plates gradually approach each other, and the same applies to the second movable clamping plate. When the first and second movable plates reach their maximum values, the four corners of the frame supports will be exposed, facilitating welding.

[0020] The first locking component of the present invention has threads on its surface, which can be threadedly connected to the second connecting base plate. When the third connecting base plate moves to its maximum value, the air pressure will drive the first pushing component to move out of the first movable base. The fifth spring drives the first adjusting component to rotate, and the first adjusting component drives the first locking component to rotate, thereby locking the first locking component with the second connecting base plate, further fixing the frame bracket and ensuring stability during welding. Attached Figure Description

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is a detailed structural diagram of the first inner clamp of the present invention;

[0023] Figure 3 This is a detailed structural diagram of the first external clamp of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the second movable clamping plate of the present invention;

[0025] Figure 5 This is a detailed structural diagram of the second outer clamp of the present invention;

[0026] Figure 6 This is a detailed structural diagram of the second movable clamping plate of the present invention;

[0027] Figure 7 This is a schematic diagram of the internal structure of the fourth connecting base plate and the first fixing block of the present invention;

[0028] Figure 8 This is a cross-sectional view of the structure at the first active component of the present invention;

[0029] Figure 9 For the present invention Figure 8 Enlarged view of point A in the middle;

[0030] Figure 10 This is a cross-sectional view of the power component of the present invention.

[0031] In the diagram: 1. Support base; 2. First inner clamp; 21. First clamping plate; 22. First limiting slider; 23. First connecting base plate; 24. First spring; 3. Second inner clamp; 31. Second clamping plate; 32. Second limiting slider; 33. Second connecting base plate; 34. Second spring; 4. First outer clamp; 41. First connecting plate; 42. First limiting slide plate; 43. Third limiting slider; 44. Third connecting base plate; 5. First movable clamping plate; 51. First movable plate; 52. First ball bearing assembly; 53. Third spring; 6. Second outer clamp; 61. Second connecting plate; 62. Second limiting slide plate; 63. Fourth limiting slider; 64. Fourth connecting base plate; 7. Second movable clamping plate; 71. Second movable plate; 72. Second ball bearing assembly; 73. Fourth spring; 8. First fixing block; 9. First movable component; 91. First connecting base; 92. First movable base; 93. First pushing component; 94. Fifth spring; 95. First connecting toothed plate; 10. Second locking component; 11. First telescopic component; 111. First bellows; 112. First connecting straight pipe; 113. Second bellows; 12. First adjusting component; 121. First mating gear; 122. First helical gear; 13. First locking component; 131. First locking rod; 132. Second helical gear; 14. Power component; 141. Sealing box; 142. Telescopic rod; 143. Air pressure plate; 144. First connecting air pipe; 145. Second connecting air pipe; 15. Second fixing block; 16. Second adjusting component. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] like Figures 1 to 10As shown, the present invention provides a robot workstation frame-type workpiece positioning fixture mechanism, including a support base 1. A first inner clamp 2 and a second inner clamp 3 are symmetrically installed on opposite sides of the middle of the support base 1. A first outer clamp 4 and a second outer clamp 6 are movably sleeved on opposite sides of the support base 1. A first movable clamping plate 5 is movably sleeved on the middle of the first outer clamp 4. A second movable clamping plate 7 is movably sleeved on the middle of the second outer clamp 6. A first fixing block 8 and a second fixing block 15 are fixedly installed on the outer edges of opposite sides of the support base 1. A first movable component 9 is fixedly installed on the middle of the first fixing block 8. A first telescopic component 11 is installed inside the first movable component 9. A first adjusting component 12 is movably sleeved inside the lower end of the second outer clamp 6. A first locking component 13 is engaged at the bottom of the first adjusting component 12. A power component 14 is fixedly installed in the middle of the bottom of the support base 1. A second adjusting component 16 is movably sleeved inside the lower end of the first outer clamp 4. A second locking component 10 is engaged at the bottom of the second adjusting component 16.

[0034] The above scheme is adopted as follows: Activating the telescopic rod 142 moves the pneumatic plate 143 inside the sealed box 141. Pneumatic pressure extends the first bellows 111 and second bellows 113 in the first telescopic assembly 11, thereby moving the first movable base 92 and the first pushing assembly 93. The movement of the first movable base 92 causes the first outer clamp 4 and the second outer clamp 6 to pressurize the frame brackets, bringing the four frame brackets closer together and achieving initial fixation. Then, through the design of the second movable clamping plate 7 and the first movable clamping plate 5, the second movable plate 71 can pass through the middle of the first movable plate 51 without obstruction. This allows the four frame brackets to be arranged into a rectangle under pressure, facilitating welding. After the four frame brackets are aligned, the first outer clamp 4 and the second outer clamp 6 continue to move under pressure. The frame bracket has been formed. At this point, only the first movable clamping plate 5 and the second movable clamping plate 7 can be squeezed, causing the two first movable plates 51 to move along the sliding groove on the surface of the first limiting slide plate 42. The two first movable plates 51 gradually approach each other, and the same applies to the second movable clamping plate 7. When the first movable plates 51 and the second movable plates 71 move to their maximum values, the four corners of the frame bracket will be exposed, facilitating welding. Furthermore, the surface of the first locking component 13 is provided with threads, which can be threadedly connected to the second connecting base plate 33. When the third connecting base plate 44 moves to its maximum value, the air pressure will drive the first pushing component 93 to move out of the first movable base 92, thereby driving the first adjusting component 12 to rotate. The first adjusting component 12 drives the first locking component 13 to rotate, thereby locking the first locking component 13 with the second connecting base plate 33, further fixing the frame bracket and ensuring stability during welding.

[0035] like Figure 2 , Figure 5 As shown, the first inner clamp 2 includes a first clamping plate 21, a first limiting slider 22, a first connecting base plate 23, and a first spring 24. The second inner clamp 3 includes a second clamping plate 31, a second limiting slider 32, a second connecting base plate 33, and a second spring 34. The bottom of the first clamping plate 21 is fixedly connected to the first limiting slider 22, and the bottom of the first limiting slider 22 is fixedly connected to the first connecting base plate 23. The first spring 24 is fixedly installed on one side of the first limiting slider 22. The first inner clamp 2 and the second inner clamp 3 have the same structural position but different dimensions.

[0036] The above scheme is adopted: through the design of the first inner clamp 2, the first limiting slider 22 and the second limiting slider 32 are responsible for guidance, and the surfaces of the first connecting base plate 23 and the second connecting base plate 33 are provided with grooves through which the fifth spring 94 can pass, to prevent the first pushing component 93 from being blocked when it moves, thus ensuring the rationality of the structure. When the frame bracket is squeezed and positioned, the second clamping plate 31 and the first clamping plate 21 can block the frame bracket, which facilitates positioning.

[0037] like Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown, the first outer clamp 4 includes a first connecting plate 41, a first limiting slide plate 42, a third limiting slider 43, and a third connecting base plate 44. The first limiting slide plate 42 is slidably connected to the first movable clamping plate 5. The first limiting slide plate 42 is fixedly connected to both ends of the first connecting plate 41. The third limiting slider 43, which is slidably connected to the bracket base 1, is fixedly installed at the bottom of the first connecting plate 41. The third connecting base plate 44, which limits the second adjusting component 16, is fixedly installed at the bottom of the third limiting slider 43. The second outer clamp 6 includes a second connecting plate 61, a second limiting slide plate 62, a fourth limiting slider 63, and a fourth connecting base plate 64. The first inner clamp 2 and the second inner clamp 3 have the same structural position but different dimensions. The second limiting slide plate 62 is slidably connected to the second movable clamping plate 7. The second movable clamping plate 7 includes two second movable... The first movable clamping plate 5 includes two first movable plates 51, a first ball assembly 52, and a third spring 53. The first movable plate 71 is movably connected to the second ball assembly 72 near the middle of the support base 1. The second ball assembly 72 includes a sixth spring and a ball. The fourth spring 73 is fixedly installed on the opposite side of the two second movable plates 71. The second movable plates 71 are slidably connected to the second limiting slide plate 62 through rollers at the upper and lower ends. The first movable clamping plate 5 includes two first movable plates 51, a first ball assembly 52, and a third spring 53. The first movable plate 51 is movably connected to the first ball assembly 52 near the middle of the support base 1. The first ball assembly 52 has the same structure as the second ball assembly 72. The third spring 53 is fixedly installed on the opposite side of the two first movable plates 51. The first movable plate 51 is slidably connected to the first limiting slide plate 42 through rollers at the upper and lower ends.

[0038] The above solution is adopted by adapting the long and short sides of the frame bracket to the first outer clamp 4 and the second outer clamp 6 with different sizes. At the same time, the first movable plate 51 and the second movable plate 71 will not obstruct each other. The second movable plate 71 can pass through the middle of the first movable plate 51, which can ensure that the frame bracket can be aligned when it is squeezed. The first ball assembly 52 can reduce the friction between the second movable plate 71 and the frame bracket when the second movable plate 71 moves along the sliding groove on the second limiting slide plate 62. The second movable plate 71 is similarly designed to ensure smooth movement, thereby exposing the four corners of the frame bracket for easy welding.

[0039] like Figures 7-10As shown, there are four first movable components 9, which are respectively fixedly installed inside the two first fixed blocks 8 and the two second fixed blocks 15. Each first movable component 9 includes a first connecting base 91 fixed inside the two first fixed blocks 8 or the two second fixed blocks 15. A first movable base 92 is movably sleeved inside the first connecting base 91. The first movable base 92 is fixedly connected to the fourth connecting base plate 64 or the third connecting base plate 44. A fifth spring 94 is movably sleeved on the outer surface of the first movable base 92. One end of the fifth spring 94 is fixedly connected to the first movable base 92, and the other end is fixedly connected to the inner wall of the first connecting base 91. The five springs 94 are in a stretched state. The first movable base 92, at the end furthest from the first connecting base 91, is movably fitted with a first pushing component 93. The first pushing component 93, at the end furthest from the first connecting base 91, is fixedly fitted with a first connecting toothed plate 95. The first telescopic component 11 includes a first bellows 111. One end of the first bellows 111 is fixedly connected to a first connecting straight pipe 112 penetrating the middle of the first movable base 92. The end of the first connecting straight pipe 112 furthest from the first bellows 111 is fixedly connected to a second bellows 113. The first adjusting component 12 includes a first mating gear 121 and a first helical gear 122. The first mating gear 121... A first helical gear 122 is fixedly installed at the bottom of component 1. A first mating gear 121 meshes with a first connecting toothed plate 95. The second adjusting component 16 has the same structure as the first adjusting component 12, and its positional relationship with the first movable component 9 is also the same as that of the first adjusting component 12. The first locking component 13 includes a first locking rod 131. One end of the first locking rod 131 is fixedly connected to a second helical gear 132 that meshes with the first helical gear 122. The end of the first locking rod 131 near the second helical gear 132 is rotatably located inside the two fourth connecting base plates 64 or the two third connecting base plates 44. The second locking component 10 and the first locking component 1... The structures of the three components are the same, and the positional relationship between the first locking component 13 and the first adjusting component 12 and the second locking component 10 and the second adjusting component 16 is also the same. The power component 14 includes a sealed box 141 fixedly connected to the bottom of the bracket base 1. The upper end of the inner cavity of the sealed box 141 is connected to a pneumatic plate 143. The top of the pneumatic plate 143 is fixedly connected to a telescopic rod 142. The two opposite sides of the bottom of the sealed box 141 are respectively fixedly connected to a first connecting air pipe 144 and a second connecting air pipe 145. The first connecting air pipe 144 and the second connecting air pipe 145 are both fixedly connected to the first corrugated pipe 111 in the first telescopic component 11.

[0040] The above scheme is adopted: the telescopic rod 142 can drive the air pressure plate 143 to move inside the sealed box 141, so that gas is injected into the first telescopic assembly 11 through the first connecting air pipe 144 and the second connecting air pipe 145. Due to the design of the fifth spring 94 and the fact that the fifth spring 94 is in a stretched state, the first bellows 111 first extends after the gas enters, thereby driving the first movable base 92 to move. The first movable base 92 is fixed to the third connecting base plate 44 and the fourth connecting base plate 64. The movement of the first movable base 92 drives the first outer clamp 4 and the second outer clamp 6 to move and pressurize the frame bracket, so that the four frame brackets are close together, thereby achieving the initial fixing effect. When the four frame brackets have been formed under pressure, the extension of the first bellows 111 drives the first outer clamp 4 and the second outer clamp 6 to squeeze the first movable clamping plate 5 and the first... The two movable clamping plates 7 allow the two first movable plates 51 to move along the sliding grooves on the surface of the first limiting slide plate 42, gradually bringing the two first movable plates 51 closer together. Similarly, the second movable clamping plate 7 also moves. When the first movable plates 51 and 71 move to their maximum values, the four corners of the frame bracket will be exposed, facilitating welding. Furthermore, the surface of the first locking component 13 is provided with threads, allowing it to be threadedly connected to the second connecting base plate 33. When the third connecting base plate 44 moves to its maximum value, the first bellows 111 stops changing, and the second bellows 113 extends. The air pressure will drive the first pushing component 93 to move out of the first movable base 92, thereby driving the first adjusting component 12 to rotate. The first adjusting component 12 drives the first locking component 13 to rotate, thus locking the first locking component 13 with the second connecting base plate 33, further fixing the frame bracket and ensuring stability during welding.

[0041] Working principle and usage process of this invention:

[0042] First, place the four frame brackets to be welded in pairs, corresponding to the middle positions of the first inner clamp 2 and the first outer clamp 4, the second inner clamp 3 and the first movable clamping plate 5. Then, activate the telescopic rod 142 to move the pneumatic plate 143 inside the sealed box 141. The first bellows 111 and the second bellows 113 in the first telescopic assembly 11 are extended by air pressure, which can drive the first movable base 92 and the first pushing assembly 93 to move. The movement of the first movable base 92 drives the first outer clamp 4 and the second outer clamp 6 to pressurize the frame brackets, so that the four frame brackets are close together. The first inner clamp 2 and the second inner clamp 3 can provide support for the inner side of the frame brackets, thereby achieving the effect of initial fixation.

[0043] During the process of forming a rectangle with the frame brackets, the second movable plate 71 can pass through the middle of the first movable plate 51 without obstruction. When the four frame brackets are aligned, the first outer clamp 4 and the second outer clamp 6 continue to move under pressure. Since the four frame brackets have been formed, only the first movable clamping plate 5 and the second movable clamping plate 7 can be squeezed at this time, so that the two first movable plates 51 move along the sliding groove on the surface of the first limiting slide plate 42. The two first movable plates 51 gradually approach each other. Similarly, the second movable clamping plate 7 also moves. When the first movable plate 51 and the second movable plate 71 move to their maximum value, the four corners of the frame bracket will be exposed, which is convenient for welding.

[0044] Furthermore, the surface of the first locking component 13 is provided with threads, which can be threadedly connected to the second connecting base plate 33. When the third connecting base plate 44 moves to its maximum value, the air pressure will drive the first pushing component 93 to move out of the first movable base 92, thereby driving the first adjusting component 12 to rotate. The first adjusting component 12 drives the first locking component 13 to rotate, thereby locking the first locking component 13 with the second connecting base plate 33, further fixing the frame bracket and ensuring stability during welding.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A robot workstation frame-type workpiece positioning fixture mechanism, comprising a support base, characterized in that: The support base has a first inner clamp and a second inner clamp symmetrically installed on opposite sides of its middle section. The support base also has a first outer clamp and a second outer clamp movably fitted onto opposite sides of its middle section. A first movable clamping plate is movably fitted onto the middle of the first outer clamp, and a second movable clamping plate is movably fitted onto the middle of the second outer clamp. A first fixing block and a second fixing block are fixedly installed along the outer edges of opposite sides of the support base. A first movable component is fixedly installed in the middle of the first fixing block, and a first telescopic component is installed inside the first movable component. A first adjusting component is movably fitted onto the lower end of the second outer clamp, and a first locking component engages with the bottom of the first adjusting component. A power component is fixedly installed in the middle of the bottom of the support base. A second adjusting component is movably fitted onto the lower end of the first outer clamp, and a second locking component engages with the bottom of the second adjusting component. The first external clamp includes a first connecting plate, a first limiting slide plate, a third limiting slider, and a third connecting base plate. The first limiting slide plate is slidably connected to the first movable clamping plate. The first limiting slide plate is fixedly connected to both ends of the first connecting plate. The third limiting slider, which is slidably connected to the support base, is fixedly installed at the bottom of the first connecting plate. The third connecting base plate, which limits the second adjusting component, is fixedly installed at the bottom of the third limiting slider. The second external clamp includes a second connecting plate, a second limiting slide plate, a fourth limiting slider, and a fourth connecting base plate. The first internal clamp and the second internal clamp have the same structural position but different dimensions. The second limiting slide plate is slidably connected to the second movable clamping plate. The first movable clamping plate includes two first movable plates, and the second movable clamping plate includes two second movable plates. The second movable plates can pass through the middle of the first movable plates. The first outer clamp and the second outer clamp squeeze the first movable clamping plate and the second movable clamping plate, causing the two first movable plates to move along the sliding groove on the surface of the first limiting slide plate, and the two first movable plates gradually approach each other.

2. The robot workstation frame-type workpiece positioning fixture mechanism according to claim 1, characterized in that: The first inner clamp includes a first clamping plate, a first limiting slider, a first connecting base plate, and a first spring. The second inner clamp includes a second clamping plate, a second limiting slider, a second connecting base plate, and a second spring. The bottom of the first clamping plate is fixedly connected to the first limiting slider, and the bottom of the first limiting slider is fixedly connected to the first connecting base plate. The first spring is fixedly installed on one side of the first limiting slider. The first inner clamp and the second inner clamp have the same structural position but different dimensions.

3. The robot workstation frame-type workpiece positioning fixture mechanism according to claim 2, characterized in that: The second movable clamping plate includes two second movable plates, a second ball bearing assembly, and a fourth spring. The second movable plate is movably connected to the second ball bearing assembly on the side near the middle of the support base. The second ball bearing assembly includes a sixth spring and a ball bearing. The fourth spring is fixedly installed on the opposite side of the two second movable plates. The second movable plate is slidably connected to the second limiting slide plate through rollers at the upper and lower ends.

4. The robot workstation frame-type workpiece positioning fixture mechanism according to claim 3, characterized in that: The first movable clamping plate includes two first movable plates, a first ball bearing assembly, and a third spring. The first movable plate is movably connected to the first ball bearing assembly on the side near the middle of the support base. The first ball bearing assembly has the same structure as the second ball bearing assembly. The third spring is fixedly installed on the opposite side of the two first movable plates. The first movable plate is slidably connected to the first limiting slide plate through rollers at the upper and lower ends.

5. The robot workstation frame-type workpiece positioning fixture mechanism according to claim 4, characterized in that: The first movable component has four parts, which are respectively fixedly installed inside two first fixed blocks and two second fixed blocks. The first movable component includes a first connecting base fixed inside the two first fixed blocks or two second fixed blocks. A first movable base is movably sleeved inside the first connecting base. The first movable base is fixedly connected to a fourth connecting base plate or a third connecting base plate. A fifth spring is movably sleeved on the outer surface of the first movable base. One end of the fifth spring is fixedly connected to the first movable base, and the other end is fixedly connected to the inner wall of the first connecting base. The fifth spring is in a stretched state. A first pushing component is movably sleeved on the end of the first movable base away from the first connecting base. A first connecting toothed plate is fixedly installed on the end of the first pushing component away from the first connecting base.

6. The robot workstation frame-type workpiece positioning fixture mechanism according to claim 1, characterized in that: The first telescopic component includes a first corrugated pipe, one end of which is fixedly connected to a first connecting straight pipe that passes through the middle of the first movable base, and the end of the first connecting straight pipe away from the first corrugated pipe is fixedly connected to a second corrugated pipe.

7. The robot workstation frame-type workpiece positioning fixture mechanism according to claim 6, characterized in that: The first adjustment component includes a first mating gear and a first helical gear. The first helical gear is fixedly installed at the bottom of the first mating gear. The first mating gear meshes with the first connecting toothed plate. The second adjustment component has the same structure as the first adjustment component, and its positional relationship with the first movable component is also the same as that of the first adjustment component.

8. The robot workstation frame-type workpiece positioning fixture mechanism according to claim 7, characterized in that: The first locking assembly includes a first locking rod, one end of which is fixedly connected to a second helical gear that meshes with the first helical gear. The end of the first locking rod near the second helical gear is rotatably located inside the two fourth connecting base plates or the two third connecting base plates. The second locking assembly has the same structure as the first locking assembly, and the positional relationship between the first locking assembly and the first adjusting assembly and the second locking assembly and the second adjusting assembly are also the same.

9. The robot workstation frame-type workpiece positioning fixture mechanism according to claim 1, characterized in that: The power assembly includes a sealed box fixedly connected to the bottom of the support base. A pressure plate is connected to the upper end of the inner cavity of the sealed box. A telescopic rod is fixedly connected to the top of the pressure plate. A first connecting air pipe and a second connecting air pipe are fixedly connected to opposite sides of the bottom of the sealed box. Both the first connecting air pipe and the second connecting air pipe are fixedly connected to the first corrugated pipe in the first telescopic assembly.

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