Intelligent robot production detection device for manufacturing industry
By designing an intelligent robot production and testing device, and utilizing servo motors to drive multi-angle testing components, the problem of low testing efficiency caused by manual angle changes in existing technologies has been solved, achieving comprehensive and efficient testing of products and accurate results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- QILU INST OF TECH
- Filing Date
- 2023-10-08
- Publication Date
- 2026-04-14
AI Technical Summary
Existing production testing equipment requires manual adjustment of the testing angle, resulting in low testing efficiency and a small testing area, making it difficult to conduct comprehensive testing of products and affecting the accuracy of the test results.
The intelligent robot production and testing device includes a mounting frame, a fixed frame, a motor support frame, a servo motor, a rotating component, and a reciprocating testing component. The servo motor drives the toothed gear and meshing gear to perform multi-angle testing of the product, and combined with the swing and rotating components, it achieves all-round testing of the product.
This enabled efficient and comprehensive product testing, improved testing efficiency and accuracy of results, reduced manpower waste, and increased product production speed.
Smart Images

Figure CN121855601A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the manufacturing industry, and more particularly to an intelligent robot production inspection device for manufacturing. Background Technology
[0002] A robot is a mechanical device that can be programmed and performs certain operations and moving tasks under automatic control, and is widely used in manufacturing. Production inspection refers to the inspections carried out by manufacturing enterprises at various stages throughout the entire production process to ensure the quality of the products produced. With the rapid development of robotics technology, robots are constantly expanding into various fields, and people have begun to use robots for production inspection work in the production process.
[0003] During product inspection, the inspection angle needs to be changed to inspect all sides of the product. However, most current production inspection devices require manual assistance to change the product angle, which wastes manpower and time and leads to low product inspection efficiency. Furthermore, using a single inspection machine to inspect the product results in a small inspection area, making it difficult to conduct comprehensive inspections and leading to inaccurate inspection results, which in turn affects the quality of subsequent products. Summary of the Invention
[0004] To address the shortcomings or deficiencies of the existing technologies, this invention provides an intelligent robot production inspection device for manufacturing, which enables more efficient and comprehensive product inspection, resulting in more accurate inspection results and ultimately better quality products produced subsequently.
[0005] A manufacturing intelligent robot production inspection device includes a mounting frame, a fixed frame, a motor support frame, a servo motor, a rotating component, and a reciprocating inspection component. The fixed frame is fixedly connected to the top of the mounting frame, the motor support frame is fixedly connected to one side of the mounting frame, the servo motor is fixedly connected to the motor support frame, the rotating component is mounted on the servo motor, and the reciprocating inspection component is mounted on the motor support frame.
[0006] Furthermore, the rotating assembly includes a toothed gear, a rotating disk, a support plate, baffles, and a return spring. The toothed gear is fixedly connected to the output shaft of the servo motor. The rotating disk is rotatably connected to the top of the mounting bracket. A cross groove is opened on the top of the rotating disk. A support plate is placed in the cross groove on the top of the rotating disk. Four baffles are slidably connected in the cross groove inside the rotating disk. A return spring is connected between the rotating disk and the baffles. The lower part of the rotating disk is in contact with all four baffles.
[0007] Furthermore, the reciprocating detection assembly includes a meshing gear, a rotating disk, a sliding frame, a support spring, a fixed rod, a fixed shaft, a detection machine one, a torsion spring, and a detection machine two. The upper part of the motor support frame is rotatably connected to the meshing gear. A rotating disk is fixedly connected to the meshing gear. A protruding rod is provided on the rotating disk. A sliding frame is slidably connected to the fixed frame. Two support springs are connected between the sliding frame and the mounting frame. The support springs are sleeved on the fixed frame. A fixed rod is fixedly connected to the sliding frame. The fixed rod is located above the protruding rod on the rotating disk. Two fixed shafts are fixedly connected to the sliding frame. The two fixed shafts are symmetrically arranged. Detection machine one is rotatably connected to the end of each of the two fixed shafts that is close to each other. Two torsion springs are connected between detection machine one and the fixed shaft. Detection machine two is fixedly connected to the lower side of the upper part of the fixed frame.
[0008] Furthermore, it also includes a swing detection component, which is mounted on a fixed frame. The swing detection component includes a grooved frame, protrusions, and swing rods. Two grooved frames are fixedly connected to the fixed frame. The two grooved frames are arranged symmetrically. Four protrusions are fixedly connected to the side of the two grooved frames that are close to each other. The four protrusions on the same grooved frame are staggered. Two swing rods are fixedly connected to the side of the two detection frames that are far apart from each other.
[0009] Furthermore, it also includes an auxiliary detection component, which is mounted on the toothed gear. The auxiliary detection component includes an arc-shaped plate, a rotating rod, a drive shaft, a driven grooved wheel, and a universal joint. The arc-shaped plate is fixedly connected to the side of the toothed gear near the mounting frame, and the rotating rod is fixedly connected to the side of the toothed gear near the mounting frame. The drive shaft is rotatably connected to the side of the mounting frame near the servo motor. The driven grooved wheel is fixedly connected to the end of the drive shaft near the motor support frame, and a universal joint is fixedly connected between the end of the drive shaft away from the motor support frame and the bottom of the rotating disk.
[0010] Furthermore, the driven grooved wheel has four arc-shaped grooves and four retaining grooves, and the bottom of the arc-shaped plate contacts the arc-shaped groove at the top of the driven grooved wheel.
[0011] Furthermore, it also includes a movable frame, top rods, guide rods, and guide groove plates. The movable frame is slidably connected to the top of the mounting frame. Four top rods are fixedly connected to the support plate. The movable frame contacts the ends of two of the top rods away from the support plate. Guide rods are fixedly connected to the movable frame. Guide groove plates are fixedly connected to the side of the sliding frame away from the fixed frame.
[0012] Furthermore, the guide groove plate has a guide groove, and the upper part of the guide rod is located in the guide groove plate.
[0013] Furthermore, it also includes a positioning frame, which is fixedly connected to the top of the support plate.
[0014] The beneficial effects of this invention are as follows: First, the operator starts the servo motor, the second inspection machine, and the two first inspection machines. The second inspection machine and the two first inspection machines will inspect the top and lower sides of the product. The rotation of the output shaft of the servo motor will drive the toothed gear to rotate, so that the two first inspection machines will inspect the two sides of the product. Then, the operator will rotate the turntable, so that the two first inspection machines will inspect the other two sides of the product. Finally, the operator will turn off the servo motor, the second inspection machine, and the two first inspection machines, and remove the inspected product. In this way, by using the two first inspection machines and the second inspection machine to inspect the top and lower sides, the upper sides, the other lower sides, and the other upper sides of the product, a more comprehensive inspection of the product can be performed, resulting in high inspection efficiency and more accurate inspection results.
[0015] When the two fixed shafts drive the two inspection machines to move upwards, the inspection machines will drive the two swing rods to move upwards. The swing of one of the swing rods will cause the inspection machine to swing, and the torsion spring will be twisted. Then the torsion spring will reset and drive the inspection machine to swing in the opposite direction to reset. This process is repeated. By swinging the inspection machine back and forth, the inspection area of the inspection machine can be increased, so that the product can be inspected more comprehensively, resulting in higher inspection efficiency and more accurate inspection results.
[0016] When the output shaft of the servo motor drives the toothed gear to rotate, the toothed gear will drive the arc plate and the rotating rod to rotate. The rotation of the rotating disk will drive the support plate, the baffle and the return spring to rotate. The rotation of the support plate will drive the product to rotate. In this way, the rotating disk can be driven to rotate automatically through the driven groove wheel and the universal joint, reducing the waste of manpower, thereby making the product inspection more efficient and accelerating the product production speed. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention.
[0018] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention.
[0019] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the auxiliary detection component of the present invention.
[0020] Figure 4 For the present invention Figure 3 A magnified three-dimensional structural diagram of A in the middle.
[0021] Figure 5 For the present invention Figure 3 A magnified three-dimensional structural diagram of B.
[0022] Figure 6 This is a partial cross-sectional perspective view of the rotating component of the present invention.
[0023] Figure 7 For the present invention Figure 6 A magnified three-dimensional structural diagram of C.
[0024] Figure 8 This is a partial three-dimensional structural diagram of the auxiliary detection component of the present invention.
[0025] Figure 9 This is a three-dimensional structural diagram of the guide groove plate of the present invention.
[0026] In the attached diagram, the following are the reference numerals: 1-mounting bracket, 2-fixed bracket, 3-motor support bracket, 4-servo motor, 51-gear with missing teeth, 52-rotating disk, 53-support plate, 54-baffle, 55-reset spring, 61-meshing gear, 62-rotating disk, 63-sliding bracket, 64-support spring, 65-fixed rod, 66-fixed shaft, 67-inspection machine one, 68-torsion spring, 69-inspection machine two, 71-groove bracket, 72-protrusion, 73-swing rod, 81-arc plate, 82-rotating rod, 83-drive shaft, 84-driven grooved wheel, 85-universal joint, 91-movable bracket, 92-top rod, 93-guide rod, 94-guide groove plate, 10-positioning bracket. Detailed Implementation
[0027] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, welding, and bonding that are mature in the prior art, and will not be described in detail here.
[0028] Example 1: A production inspection device using intelligent robots in manufacturing, such as... Figures 1-8 As shown, it includes a mounting frame 1, a fixing frame 2, a motor support frame 3, a servo motor 4, a rotating component, and a reciprocating detection component. The mounting frame 1 is bolted to the top of the fixing frame 2. The mounting frame 1 is bolted to one side of the mounting frame 1. The motor support frame 3 is bolted to the motor support frame 3. The servo motor 4 is bolted to the motor support frame 3. The rotating component is mounted on the servo motor 4. The reciprocating detection component is mounted on the motor support frame 3.
[0029] The rotating assembly includes a toothed gear 51, a rotating disk 52, a support plate 53, baffles 54, and a return spring 55. The toothed gear 51 is connected to the output shaft of the servo motor 4 via a flat key. The rotating disk 52 is rotatably connected to the top of the mounting bracket 1. The top of the rotating disk 52 has a cross groove. The support plate 53 is placed in the cross groove at the top of the rotating disk 52. Four baffles 54 are slidably connected in the cross groove inside the rotating disk 52. The return spring 55 is connected between the rotating disk 52 and the baffles 54 via hooks. The lower part of the rotating disk 52 is in contact with all four baffles 54.
[0030] The reciprocating detection assembly includes a meshing gear 61, a rotating disk 62, a sliding frame 63, a support spring 64, a fixed rod 65, a fixed shaft 66, a first detection device 67, a torsion spring 68, and a second detection device 69. The upper part of the motor support frame 3 is rotatably connected to the meshing gear 61. The rotating disk 62 is bolted to the meshing gear 61. The rotating disk 62 has a protruding rod. The fixed frame 2 is slidably connected to the sliding frame 63. Two support springs 64 are connected to the sliding frame 63 and the mounting frame 1 via hooks. A support spring 64 is fitted onto the fixed frame 2. A fixed rod 65 is bolted to the sliding frame 63. The fixed rod 65 is located above the protruding rod on the rotating disk 62. Two fixed shafts 66 are bolted to the sliding frame 63. The two fixed shafts 66 are symmetrically arranged. The ends of the two fixed shafts 66 that are close to each other are rotatably connected to a first detection machine 67. Two torsion springs 68 are connected between the first detection machine 67 and the fixed shafts 66 through hooks. A second detection machine 69 is bolted to the lower side of the upper part of the fixed frame 2.
[0031] First, the staff places the product on the support plate 53 and starts the servo motor 4, the second inspection machine 69, and the two first inspection machines 67. The second inspection machine 69 and the two first inspection machines 67 will inspect the top and lower sides of the product. The output shaft of the servo motor 4 rotates, which drives the toothed gear 51 to rotate. The rotation of the toothed gear 51 drives the meshing gear 61 to rotate intermittently. The intermittent rotation of the meshing gear 61 drives the rotating disk 62 to rotate intermittently. The intermittent rotation of the rotating disk 62 pushes the fixed rod 65 to move upward. The upward movement of the fixed rod 65 drives the sliding frame 63 to move upward. Spring 64 will be stretched, and the upward movement of sliding frame 63 will cause both fixed shafts 66 to move upward. The upward movement of fixed shafts 66 will cause inspection machine 67 and the two torsion springs 68 to move upward respectively, so that the two inspection machines 67 can inspect the upper sides of the product. When the rotating disk 62 no longer pushes the fixed rod 65, the support spring 64 will return to its original position. The return of support spring 64 will cause sliding frame 63 to move downward and return to its original position. The return of sliding frame 63 will cause fixed shaft 66, inspection machine 67 and torsion springs 68 to move downward and return to their original positions. Then the operator will rotate the rotating disk 52. The rotating disc 52 will cause the support plate 53, baffle 54, and return spring 55 to rotate. The rotation of the support plate 53 will cause the product to rotate, so that the two inspection machines 67 can inspect the lower parts of the other two sides of the product. Then, the rotating disc 62 will push the fixed rod 65 upward again. The movement of the fixed rod 65 will cause the sliding frame 63 to move upward again, and the support spring 64 will be stretched again. The upward movement of the sliding frame 63 will cause the fixed shaft 66, inspection machine 67, and torsion spring 68 to move upward again, so that the two inspection machines 67 can inspect the upper parts of the other two sides of the product. Then the rotating disc 62... Once the fixed rod 65 is no longer pushed, the fixed rod 65, sliding frame 63, fixed shaft 66, inspection machine 1 67, and torsion spring 68 will all move downwards and reset under the action of support spring 64. Finally, the operator will turn off servo motor 4, inspection machine 2 69, and both inspection machines 1 67, and remove the inspected product. In this way, by using the two inspection machines 1 67 and inspection machine 2 69 to inspect the top and lower sides, upper sides, and other lower and upper sides of the product, a more comprehensive inspection of the product can be carried out, resulting in high inspection efficiency and more accurate inspection results.
[0032] Example 2: Based on Example 1, such as Figure 3 and Figure 4As shown, it also includes a swing detection component, which is mounted on the fixed frame 2. The swing detection component includes a groove frame 71, a protrusion 72, and a swing rod 73. Two groove frames 71 are bolted to the fixed frame 2. The two groove frames 71 are arranged symmetrically. Four protrusions 72 are bolted to the side of the two groove frames 71 that are close to each other. The four protrusions 72 on the same groove frame 71 are staggered. Two swing rods 73 are bolted to the side of the two detection machines that are far apart from each other.
[0033] When the two fixed shafts 66 drive the two inspection machines 67 to move upwards, the inspection machines 67 will drive the two swing rods 73 to move upwards. One of the swing rods 73 will contact one of the protrusions 72, and the protrusion 72 will squeeze the swing rod 73 to swing. The swing of the swing rod 73 will drive the inspection machine 67 to swing, and the torsion spring 68 will be torsion. The swing of the inspection machine 67 will drive the other swing rod 73 to swing. Then, one of the protrusions 72 will disengage from the swing rod 73, and the torsion spring 68 will return to its original position. The return of the torsion spring 68 will drive the inspection machine 67 to swing back to its original position. The return of the inspection machine 67 will drive both swing rods 73 to their original positions. When the two fixed shafts 66 drive the two inspection machines 67 to move downwards to their original positions, the return of the inspection machine 67 will drive both swing rods 73 to their original positions. This process repeats. By swinging the inspection machine 67 back and forth, the inspection area of the inspection machine 67 on the product can be increased, thereby enabling more comprehensive inspection of the product, resulting in higher inspection efficiency and more accurate inspection results.
[0034] Example 3: Based on Example 2, such as Figures 3-8 As shown, it also includes an auxiliary detection component, which is mounted on the toothed gear 51. The auxiliary detection component includes an arc plate 81, a rotating rod 82, a drive shaft 83, a driven grooved wheel 84, and a universal joint 85. The arc plate 81 is bolted to the side of the toothed gear 51 near the mounting frame 1. The rotating rod 82 is bolted to the side of the toothed gear 51 near the mounting frame 1. The drive shaft 83 is rotatably connected to the side of the mounting frame 1 near the servo motor 4. The driven grooved wheel 84 is connected to the end of the drive shaft 83 near the motor support frame 3 via a flat key. The driven grooved wheel 84 has four arc-shaped grooves and four retaining grooves. The bottom of the arc plate 81 contacts the arc-shaped groove at the top of the driven grooved wheel 84. The end of the drive shaft 83 away from the motor support frame 3 is bolted to the bottom of the rotating disk 52 via a universal joint 85.
[0035] When the output shaft of the servo motor 4 drives the toothed gear 51 to rotate, the toothed gear 51 will drive the arc plate 81 and the rotating rod 82 to rotate. The arc plate 81 will disengage from the arc groove at the top of the driven groove wheel 84, and the rotating rod 82 will be engaged in one of the slots on the driven groove wheel 84. The rotation of the rotating rod 82 will drive the driven groove wheel 84 to rotate, and the bottom of the arc plate 81 will contact the other arc groove on the driven groove wheel 84. The rotation of the driven groove wheel 84 will drive the transmission shaft 83 to rotate. The rotation of the transmission shaft 83 will drive the rotating disk 52 to rotate through the universal joint 85. The rotation of the rotating disk 52 will drive the support plate 53, the baffle 54 and the return spring 55 to rotate. The rotation of the support plate 53 will drive the product to rotate. In this way, the rotating disk 52 can rotate automatically through the driven groove wheel 84 and the universal joint 85, reducing manpower waste and making product inspection more efficient and product production speed faster.
[0036] Example 4: Based on Example 3, such as Figures 2-9 As shown, it also includes a movable frame 91, a top rod 92, a guide rod 93, and a guide groove plate 94. The movable frame 91 is slidably connected to the top of the mounting frame 1. Four top rods 92 are bolted to the support plate 53. The movable frame 91 contacts the ends of two of the top rods 92 away from the support plate 53. The guide rod 93 is bolted to the movable frame 91. The guide groove plate 94 is bolted to the side of the sliding frame 63 away from the fixed frame 2. The guide groove plate 94 has a guide groove. The upper part of the guide rod 93 is located in the guide groove on the guide groove plate 94.
[0037] When the fixed rod 65 moves the sliding frame 63 upward, the sliding frame 63 moves the guide groove plate 94 upward. The upward movement of the guide groove plate 94 compresses the guide rod 93, which moves horizontally back and forth along the guide groove on the guide groove plate 94. The horizontal back and forth movement of the guide rod 93 moves the movable frame 91 horizontally back and forth. The horizontal back and forth movement of the movable frame 91 pushes two of the top rods 92 to move horizontally back and forth. The horizontal back and forth movement of the two top rods 92 moves the support plate 53 horizontally back and forth. The two return springs 55 are continuously compressed or reset. The horizontal back and forth movement of the support plate 53 moves the product horizontally back and forth, thereby further conducting more comprehensive testing on the product and resulting in better quality of the products produced subsequently.
[0038] Example 5: Based on Example 4, such as Figure 1 As shown, it also includes a positioning frame 10, and the top of the support plate 53 is connected to the positioning frame 10 by bolts.
[0039] The positioning frame 10 can limit the position of the product placed on top of the support plate 53, making the product more stable during the testing process.
[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A production inspection device using intelligent robots in manufacturing, characterized in that: It includes a mounting frame (1), a fixing frame (2), a motor support frame (3), a servo motor (4), a rotating component, and a reciprocating detection component. The mounting frame (1) is fixedly connected to the top of the fixing frame (2), the mounting frame (1) is fixedly connected to one side of the mounting frame (1), the servo motor (4) is fixedly connected to the motor support frame (3), the rotating component is mounted on the servo motor (4), and the reciprocating detection component is mounted on the motor support frame (3). The rotating assembly includes a toothed gear (51), a rotating disk (52), a support plate (53), a baffle (54), and a return spring (55). The toothed gear (51) is fixedly connected to the output shaft of the servo motor (4). The rotating disk (52) is rotatably connected to the top of the mounting bracket (1). The top of the rotating disk (52) has a cross groove. The support plate (53) is placed in the cross groove at the top of the rotating disk (52). Four baffles (54) are slidably connected in the cross groove inside the rotating disk (52). A return spring (55) is connected between the rotating disk (52) and the baffles (54). The lower part of the rotating disk (52) is in contact with all four baffles (54).
2. The intelligent robot production and inspection device for manufacturing as described in claim 1, characterized in that: The reciprocating detection assembly includes a meshing gear (61), a rotating disk (62), a sliding frame (63), a support spring (64), a fixed rod (65), a fixed shaft (66), a detection machine one (67), a torsion spring (68), and a detection machine two (69). The upper part of the motor support frame (3) is rotatably connected to the meshing gear (61). The rotating disk (62) is fixedly connected to the meshing gear (61). The rotating disk (62) is provided with a protruding rod. The sliding frame (63) is slidably connected to the fixed frame (2). Two support springs (64) are connected between the sliding frame (63) and the mounting frame (1). 4) The support spring (64) is sleeved on the fixed frame (2). A fixed rod (65) is fixedly connected to the sliding frame (63). The fixed rod (65) is located above the protruding rod on the rotating disk (62). Two fixed shafts (66) are fixedly connected to the sliding frame (63). The two fixed shafts (66) are symmetrically arranged. The ends of the two fixed shafts (66) that are close to each other are rotatably connected to the first detection machine (67). Two torsion springs (68) are connected between the first detection machine (67) and the fixed shaft (66). The second detection machine (69) is fixedly connected to the lower side of the upper part of the fixed frame (2).
3. The intelligent robot production and inspection device for manufacturing as described in claim 2, characterized in that: It also includes a swing detection component, which is set on a fixed frame (2). The swing detection component includes a groove frame (71), a protrusion (72) and a swing rod (73). Two groove frames (71) are fixedly connected to the fixed frame (2). The two groove frames (71) are symmetrically arranged. Four protrusions (72) are fixedly connected to the side of the two groove frames (71) that are close to each other. The four protrusions (72) on the same groove frame (71) are staggered. Two swing rods (73) are fixedly connected to the side of the two detection machines (67) that are far apart from each other.
4. The intelligent robot production inspection device for manufacturing as described in claim 3, characterized in that: It also includes an auxiliary detection component, which is set on the toothed gear (51). The auxiliary detection component includes an arc plate (81), a rotating rod (82), a drive shaft (83), a driven grooved wheel (84), and a universal joint (85). The arc plate (81) is fixedly connected to the side of the toothed gear (51) near the mounting frame (1). The rotating rod (82) is fixedly connected to the side of the toothed gear (51) near the mounting frame (1). The drive shaft (83) is rotatably connected to the side of the mounting frame (1) near the servo motor (4). The driven grooved wheel (84) is fixedly connected to the end of the drive shaft (83) near the motor support frame (3). The universal joint (85) is fixedly connected between the end of the drive shaft (83) away from the motor support frame (3) and the bottom of the rotating disk (52).
5. The intelligent robot production inspection device for manufacturing as described in claim 4, characterized in that: The driven groove wheel (84) has four arc-shaped grooves and four slots, and the bottom of the arc-shaped plate (81) contacts the arc-shaped groove at the top of the driven groove wheel (84).
6. The intelligent robot production inspection device for manufacturing as described in claim 4, characterized in that: It also includes a movable frame (91), a top rod (92), a guide rod (93), and a guide groove plate (94). The movable frame (91) is slidably connected to the top of the mounting frame (1). Four top rods (92) are fixedly connected to the support plate (53). The movable frame (91) contacts the ends of two of the top rods (92) away from the support plate (53). The guide rod (93) is fixedly connected to the movable frame (91). The guide groove plate (94) is fixedly connected to the side of the sliding frame (63) away from the fixed frame (2).
7. The intelligent robot production inspection device for manufacturing as described in claim 6, characterized in that: The guide groove plate (94) has a guide groove, and the upper part of the guide rod (93) is located in the guide groove on the guide groove plate (94).
8. The intelligent robot production inspection device for manufacturing as described in claim 6, characterized in that: It also includes a positioning frame (10), which is fixedly connected to the top of the support plate (53).