Workpiece positioning device, positioning method and workpiece machining process

Abstract

The invention discloses a workpiece positioning device and method and a workpiece machining process, and relates to the field of machining machine tools, the workpiece positioning device comprises an equipment body, an inner supporting assembly and a workpiece are arranged in the equipment body, and the workpiece positioning device is characterized by further comprising a rotating disc assembly arranged on the outer side of the equipment body, and the rotating disc assembly is connected with the inner supporting assembly; the rotating disc assembly comprises a base plate rotationally connected to the back face of the equipment body, the back face of the base plate is fixedly connected with a circular plate coaxially arranged, an outer fixing ring and an inner fixing ring are arranged behind the base plate and located on the same vertical plane, and the back faces of the inner fixing ring, the outer fixing ring and the circular plate are aligned. The whole rotating disc is prevented from being replaced or complex transformation is avoided, the rapid adjusting capacity of the sliding locking assembly allows the equipment to rapidly adapt to new drilling requirements, and production interruption and conversion time are reduced.

Description

Technical Field

[0001] The invention relates to the field of machining machine tools, and in particular to a workpiece positioning device, a positioning method and a workpiece machining process. Background Art

[0002] Processing machine tools are one of the important equipment used for processing parts in modern mechanical manufacturing. Their working principle is to use tools to perform processing operations such as cutting, drilling, milling, and grinding on workpieces to change the shape, size, and surface quality of the workpieces, thereby producing parts or products that meet the requirements.

[0003] The main function of the workpiece positioning device for machining machine tools is to fix the workpiece in the correct position on the machine tool before machining and to ensure that the position of the workpiece remains unchanged during the machining process.

[0004] Chinese patent CN115945936A discloses a workpiece positioning device for a vertical processing machine tool, including a fitting base, a supporting wall panel fixedly connected to the top of the fitting base, an upper plate fixedly connected to the top of the supporting wall panel, a turntable is provided on the outer surface of the supporting wall panel, and an identification hole is provided at one end of the turntable away from the supporting wall panel; the entire device is fixed on the vertical processing machine tool for use, and then the circular workpiece is fixed by a fixing column, and then the workpiece is adjusted to a suitable position according to the identification hole provided on the turntable, and the punching area of ​​the circular workpiece is fixed directly below the upper plate, and then the circular workpiece is punched using the upper plate.

[0005] The above patent also has the following defects: the identification hole is fixed on the turntable, because the identification hole is set corresponding to the punching area, it means that the position of the punching area corresponding to the identification hole must be fixed on the workpiece. Since the position of the punching area on the workpiece may vary due to different product designs or functional requirements, when the punching area needs to be set at other positions on the workpiece, the identification hole cannot be adjusted accordingly according to the corresponding punching area. If the punching position needs to be changed, the entire turntable may need to be replaced or complex modifications may need to be made, which will increase production costs and downtime, and the punching area needs to be rotated to directly below the hole on the upper plate. However, it may be difficult to accurately rotate the identification hole on the turntable to the topmost position of the turntable by only turning the handle to drive the turntable to rotate, so as to meet the requirement that the corresponding punching area is directly below the hole on the upper plate.

[0006] Therefore, the present application provides a workpiece positioning device, a positioning method and a workpiece processing technology to meet the needs. Summary of the invention

[0007] The purpose of the present application is to provide a workpiece positioning device, a positioning method and a workpiece processing process, by arranging a plurality of sliding locking assemblies in a circular array on the inner side of a turntable assembly, adjusting the distance between a sliding locking assembly and a next sliding locking assembly according to the distance between a drilling area and a next drilling area of ​​the workpiece, so that the distance between a sliding locking assembly and a next sliding locking assembly, and the distance between a drilling area and a next drilling area are matched, avoiding replacement of the entire turntable or complicated modifications, and the rapid adjustment capability of the sliding locking assembly allows the equipment to quickly adapt to new drilling requirements, reducing production interruptions and conversion time.

[0008] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a workpiece positioning device, comprising a device body, wherein an internal support assembly and a workpiece are arranged inside the device body, and characterized in that: it also comprises a turntable assembly arranged outside the device body, and the turntable assembly is connected to the internal support assembly;

[0009] The turntable assembly includes a chassis rotatably connected to the back of the device body, a coaxially arranged circular plate is fixedly connected to the back of the chassis, an outer fixing ring and an inner fixing ring are arranged at the rear of the chassis, and the inner fixing ring and the outer fixing ring are in the same vertical plane, and the inner fixing ring, the outer fixing ring and the back of the circular plate are aligned;

[0010] A plurality of sliding locking assemblies are arranged in a circular array on the inner side of the turntable assembly. The number of the sliding locking assemblies is the same as the number of drilling areas of the workpiece. The sliding locking assembly includes an arc block, which is integrally slidably matched with the chassis, the inner fixing ring, and the outer fixing ring, and the sliding track of the arc block is circular. An embedded column is fixedly arranged inside the arc block, and an elastic pad is threadedly connected to the embedded column. A second screw is fixedly connected to the rear side of the other end of the embedded column, and a nut is threadedly connected to the second screw.

[0011] A vertical positioning assembly is provided on the back of the device body, and the vertical positioning assembly is used to position the sliding locking assembly to the topmost position of the turntable assembly;

[0012] A clamping assembly is symmetrically arranged on the back of the device body, and the clamping assembly is used to fix the turntable assembly and the sliding locking assembly.

[0013] Preferably, the internal support assembly includes a rotating shaft rotatably arranged inside the main body of the device, the interior of the rotating shaft is hollow, and an electric push rod is symmetrically fixedly arranged inside the rotating shaft, the telescopic end of the electric push rod is fixedly connected to a conical cylinder, the end of the conical cylinder away from the electric push rod is conical, and a plurality of sliding rods are slidably arranged in a circular array inside the rotating shaft, the end of the sliding rod is adapted to the conical end of the conical cylinder, a plurality of connecting columns are fixedly connected to the side of the sliding rod close to the inner wall of the rotating shaft, and the plurality of connecting columns are equidistantly distributed on the corresponding sliding rods, the connecting columns penetrate the side wall of the rotating shaft and extend to the outside of the rotating shaft, and the end of the connecting column outside the rotating shaft is fixedly connected to an arc-shaped plate.

[0014] Preferably, the front side of the chassis is fixedly connected to one end of the rotating shaft, the chassis and the rotating shaft are coaxially arranged, one end of the rotating shaft passes through the side wall of the equipment body, the inner fixing ring is on the inner side of the outer fixing ring, and a plurality of connecting parts are connected between the chassis, the outer fixing ring and the inner fixing ring. The plurality of connecting parts are arranged in a circular array, one end of the connecting part is fixedly connected to the side wall of the chassis, and two extension parts are fixedly connected to the inner side of the connecting part, and the two extension parts are respectively fixedly connected to the back sides of the outer fixing ring and the inner fixing ring.

[0015] Preferably, the space between the outer fixing ring and the inner fixing ring forms an annular groove, and the space between the chassis and the outer fixing ring forms an annular notch, which is connected to the annular groove, and the arc block is slidably arranged in the annular groove. The two sides of the sliding locking assembly are respectively adapted to the outer fixing ring and the inner fixing ring, and the embedded column passes through the arc block. The embedded column is a cylinder, and one end of the embedded column passes through the annular notch and extends to the outside of the turntable assembly. A threaded portion is provided at the end of the embedded column outside the turntable assembly, and the side of the elastic pad close to the arc block is adapted to the chassis and the outer fixing ring, and the second screw passes through the space between the inner fixing ring and the circular plate.

[0016] Preferably, the side surfaces of the arc-shaped block are symmetrically provided with handgrip grooves, and the inner fixed ring is provided with scale values ​​of annular design.

[0017] Preferably, the vertical positioning assembly includes a movable slide plate slidably arranged on the back of the device body, a sleeve is fixedly connected to the middle of the bottom end of the movable slide plate, and an arc-shaped connecting plate is cooperated with the outer side of the sleeve, and a cylinder is symmetrically fixedly arranged on the back of the device body, and the output end of the cylinder is fixedly connected to the bottom end of the movable slide plate, the bottom end of the sleeve is open, and a notch is provided on one side of the sleeve, the inner radius of the sleeve is the same as the radius of the embedded column, and a socket group is symmetrically provided at the notch of the sleeve, and the socket group includes a plurality of vertically arranged sockets, the arc-shaped connecting plate matches the notch of the sleeve, and a plug block group is symmetrically provided on the side of the arc-shaped connecting plate close to the sleeve, and the plug block group includes a plurality of vertically arranged plug blocks, and the plug blocks are adapted to the sockets.

[0018] Preferably, the clamping assembly includes a fixed plate rotatably connected to the back of the equipment body, a first screw is threadedly connected to the fixed plate, a threaded groove for the first screw to be threadedly connected is opened on the back of the equipment body, a fixed column is fixedly connected to the back of the fixed plate, a reinforcement ring is fixedly sleeved on the fixed column, a connecting rod is fixedly connected to the side of the reinforcement ring, a threaded sleeve is fixedly connected to the end of the connecting rod away from the reinforcement ring, a bolt is threadedly connected to the internal thread of the threaded sleeve, the bolt passes through the threaded sleeve, and a positioning plate is fixedly connected to the end of the threaded sleeve.

[0019] Preferably, a drilling reference assembly is provided inside the equipment body, and the drilling reference assembly is directly above the workpiece. The drilling reference assembly includes a fixed plate fixedly connected to the inner wall of the equipment body, a through rectangular notch is provided in the middle of the fixed plate, and a plurality of sliders are slidably connected inside the rectangular notch, and the number of the sliders is the same as the number of drilling areas. A through fixing hole is provided in the middle of the slider, and a plurality of first motors are fixedly provided at the bottom end of the drilling reference assembly, and the first motors are provided in one-to-one correspondence with the sliders, and the output end of the first motor passes through the fixed plate and is fixedly connected to a linkage rod, and the slider is rotatably connected to the corresponding linkage rod through a swivel pin, and a through opening for adapting to the swivel pin is provided on the linkage rod.

[0020] Preferably, a drilling assembly is provided at the upper end of the equipment body, and the drilling assembly includes a fixed frame arranged above the equipment body, and a hydraulic cylinder is symmetrically fixedly provided on the upper end of the equipment body, and the output end of the hydraulic cylinder is fixedly connected to the bottom end of the fixed frame, and a T-shaped slot is opened in the middle of the bottom end of the fixed frame, and a screw rod is rotatably connected in the T-shaped slot, and a second motor is fixedly provided on the outer side of the fixed frame, and the output end of the second motor passes through the side wall of the fixed frame and is fixedly connected to one end of the screw rod, and a threaded block is threadedly connected to the screw rod, and the threaded block is T-shaped, and a drilling rig is fixedly provided at the bottom end of the threaded block.

[0021] Preferably, a switch door is symmetrically hinged on the rear side of the protective shell, and a protective door is symmetrically slidably installed on the front end of the device body.

[0022] A workpiece positioning method, using the above-mentioned workpiece positioning device, comprises the following steps:

[0023] Put the workpiece on the outside of the rotating shaft, and align the front end surface of the workpiece with the front end surface of the rotating shaft;

[0024] Start the two electric push rods, so that the telescopic ends of the two symmetrically arranged electric push rods approach each other, and the electric push rods drive the corresponding conical cylinder to move toward the inner direction of the rotating shaft. The conical end of the conical cylinder squeezes multiple sliding rods around, so that the sliding rods move along the length direction of the corresponding connecting column. The sliding rod drives the corresponding arc-shaped pasting plate to move toward the inner wall of the workpiece by connecting the connecting column;

[0025] A plurality of arc-shaped plates cooperate with each other to fix the workpiece.

[0026] A workpiece processing technology uses the above-mentioned workpiece positioning device.

[0027] In summary, the technical effects and advantages of the present invention are as follows:

[0028] 1. In the present invention, a plurality of sliding locking assemblies are arranged in a circular array on the inner side of the turntable assembly, and the arc blocks of the sliding locking assemblies are integrally slidably matched with the chassis, the inner fixing ring and the outer fixing ring, and the sliding track of the arc blocks is circular. According to the distance between a drilling area and the next drilling area of ​​the workpiece, the distance between a sliding locking assembly and the next sliding locking assembly is adjusted, so that the distance between a sliding locking assembly and the next sliding locking assembly, and the distance between the drilling area and the next drilling area are matched, and the position of the sliding locking assembly is fixed; since the position of the drilling area on the workpiece may vary due to different product designs or functional requirements, and the position of the corresponding sliding locking assembly on the inner side of the turntable assembly can also change accordingly, the rapid adjustment capability of the sliding locking assembly allows the equipment to quickly adapt to new drilling requirements, reducing production interruptions and conversion time.

[0029] 2. In the present invention, the vertical positioning assembly is used to position the sliding locking assembly to the topmost position of the turntable assembly, that is, the corresponding embedded column is vertically arranged, and the output end of the cylinder drives the movable slide plate and the sleeve to move downward a certain distance as a whole, and the operation of the cylinder is stopped. The sliding locking assembly is held and rotated until the embedded column of the sliding locking assembly contacts the inner wall of the sleeve, and then the plug-in block of the arc-shaped connecting plate is inserted into the plug-in structure of the sleeve to form an interlocking structure, and the turntable assembly and the sliding locking assembly are initially fixed as a whole.

[0030] 3. In the present invention, the connecting rod rotates 90° with the fixed column as the axis, and the first screw is threadedly connected to the thread groove of the equipment body to fix the position of the fixed plate. Then the bolt is rotated, and the bolt drives the positioning plate to move toward the direction of the circular plate, so that the positioning plate and the circular plate are tightly fitted, and then the turntable assembly and the sliding locking assembly are fixed as a whole for a second time, ensuring stability during the drilling work.

[0031] 4. In the present invention, a plurality of sliders are slidably arranged on the drilling reference assembly, the number of the sliders is the same as the number of the drilling areas, a through fixing hole is provided in the middle of the slider, each slider can accurately correspond to the corresponding drilling area, ensuring the accuracy and stability of the reference during drilling, and the fixing hole in the middle of the slider serves as the reference for drilling, so that the drill bit can operate according to this precise point during drilling, thereby improving the accuracy of drilling. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a schematic diagram of the front three-dimensional structure of the present invention;

[0034] Figure 2 It is a schematic diagram of the back three-dimensional structure of the present invention;

[0035] Figure 3 It is a schematic diagram of the internal structure of the rotating shaft of the present invention;

[0036] Figure 4 For the present invention Figure 3 The enlarged structural diagram of part A in the middle;

[0037] Figure 5 It is a schematic diagram of the three-dimensional structure of the present invention with the protective shell missing from the back;

[0038] Figure 6 It is a structural schematic diagram of the turntable assembly of the present invention;

[0039] Figure 7 It is a structural schematic diagram of the sliding locking assembly of the present invention;

[0040] Figure 8 For the present invention Figure 5 The enlarged structural diagram of part B in the middle;

[0041] Fig. 9 It is a structural schematic diagram of the clamping assembly of the present invention;

[0042] Fig.10 It is a structural schematic diagram of the drilling reference assembly of the present invention;

[0043] Fig.11 It is a schematic structural diagram of the drilling assembly of the present invention.

[0044] In the figure: 1. Equipment body; 2. Protective door; 3. Inner support assembly; 31. Rotating shaft; 32. Electric push rod; 33. Sliding rod; 34. Connecting column; 35. Arc plate; 36. Conical cylinder; 4. Workpiece; 5. Drilling reference assembly; 51. Fixed plate; 52. Rectangular notch; 53. First motor; 54. Linkage rod; 55. Sliding block; 56. Fixed hole; 6. Drilling assembly; 61. Fixed frame; 62. Hydraulic cylinder; 63. Threaded block; 64. Screw; 65. Second motor; 66. Drilling rig; 7. Protective shell; 71. Switch door; 8. Arc shaped connecting plate; 9, clamping assembly; 91, fixing column; 92, fixing plate; 93, first screw; 94, reinforcing ring; 95, connecting rod; 96, threaded sleeve; 97, bolt; 98, positioning plate; 10, sleeve; 11, cylinder; 12, movable slide; 13, turntable assembly; 131, chassis; 132, outer fixing ring; 133, circular plate; 134, inner fixing ring; 135, connecting piece; 14, sliding locking assembly; 141, arc block; 142, embedded column; 143, elastic pad; 144, second screw; 145, nut. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] Example: Reference Figure 1-11 A workpiece positioning device shown includes an equipment body 1, a protective door 2 is symmetrically and slidably installed at the front end of the equipment body 1, an internal support assembly 3 and a workpiece 4 are arranged inside the equipment body 1, the internal support assembly 3 is used to fix the workpiece 4, and a drilling reference assembly 5 is arranged inside the equipment body 1. The drilling reference assembly 5 is located directly above the workpiece 4. The drilling reference assembly 5 serves as a reference to ensure that the drill bit can be accurately positioned at a suitable position for drilling.

[0047] A turntable assembly 13 is provided on the outside of the equipment body 1, and the turntable assembly 13 is connected to the internal support assembly 3. When the turntable assembly 13 is rotated on the outside of the equipment body 1, the turntable assembly 13 rotates together with the internal support assembly 3 and the workpiece 4 as a whole, and the drilling area of ​​the workpiece 4 is rotated to the bottom of the drilling reference assembly 5, and then the drilling assembly 6 and the drilling reference assembly 5 are used to cooperate with each other to complete the drilling work.

[0048] The inner support assembly 3 includes a rotating shaft 31 rotatably arranged inside the device body 1, the interior of the rotating shaft 31 is hollow, and an electric push rod 32 is symmetrically fixedly arranged inside the rotating shaft 31, and the telescopic end of the electric push rod 32 is fixedly connected to a conical cylinder 36, and the end of the conical cylinder 36 away from the electric push rod 32 is conical, and a plurality of slide rods 33 are slidably arranged in a circular array inside the rotating shaft 31, and the end of the slide rod 33 is adapted to the conical end of the conical cylinder 36. When the telescopic ends of the two symmetrically arranged electric push rods 32 are close to each other, the electric push rods 32 drive the corresponding The conical cylinder 36 moves toward the inner direction of the rotating shaft 31, and the conical end of the conical cylinder 36 squeezes the multiple sliding rods 33 around it, so that the sliding rods 33 move; the side of the sliding rod 33 close to the inner wall of the rotating shaft 31 is fixedly connected with multiple connecting columns 34, and the multiple connecting columns 34 are evenly distributed on the corresponding sliding rods 33. The connecting columns 34 pass through the side wall of the rotating shaft 31 and extend to the outside of the rotating shaft 31. The end of the connecting column 34 outside the rotating shaft 31 is fixedly connected with an arc-shaped plate 35; the workpiece 4 is a hollow cylinder, and the length of the rotating shaft 31 is greater than the length of the workpiece 4.

[0049] When the workpiece 4 needs to be fixed, the workpiece 4 is sleeved on the outside of the rotating shaft 31, and the front end surface of the workpiece 4 is aligned with the front end surface of the rotating shaft 31, and the two electric push rods 32 are started at the same time, so that the telescopic ends of the two symmetrically arranged electric push rods 32 are close to each other, and the electric push rods 32 drive the corresponding conical cylinder 36 to move toward the inner direction of the rotating shaft 31. The conical end of the conical cylinder 36 squeezes the multiple sliding rods 33 around it, so that the sliding rod 33 moves along the length direction of the corresponding connecting column 34. The sliding rod 33 drives the corresponding arc-shaped plate 35 to move toward the inner wall direction of the workpiece 4 by connecting the connecting column 34. The multiple arc-shaped plates 35 cooperate with each other to fix the workpiece 4, thereby ensuring the stability of the workpiece 4 during the drilling process.

[0050] The turntable assembly 13 includes a chassis 131 rotatably connected to the back of the device body 1, a circular plate 133 is fixedly connected to the back of the chassis 131, the circular plate 133 is coaxially arranged with the chassis 131, the front side of the chassis 131 is fixedly connected to one end of the rotating shaft 31, the chassis 131 is coaxially arranged with the rotating shaft 31, one end of the rotating shaft 31 passes through the side wall of the device body 1, and an outer fixing ring 132 and an inner fixing ring 134 are arranged at the rear of the chassis 131, the inner fixing ring 134 is located on the inner side of the outer fixing ring 132, and the inner fixing ring 134 and the outer fixing ring 132 are in the same vertical plane, and the backs of the inner fixing ring 134, the outer fixing ring 132 and the circular plate 133 are aligned; a plurality of connecting members 135 are connected between the chassis 131, the outer fixing ring 132 and the inner fixing ring 134, and the plurality of connecting members 135 are arranged in a ring array, one end of the connecting member 135 is fixedly connected to the side wall of the chassis 131, and two extensions are fixedly connected to the inner side of the connecting member 135, and the two extensions are fixedly connected to the backs of the outer fixing ring 132 and the inner fixing ring 134 respectively.

[0051] The connecting member 135 tightly connects the chassis 131, the outer fixing ring 132 and the inner fixing ring 134 together to form a stable overall structure. When the overall structure is subjected to external pressure or impact, it can better disperse and resist stress, thereby improving the stability and durability of the entire structure.

[0052] A plurality of sliding locking assemblies 14 are arranged in an annular array on the inner side of the turntable assembly 13. The number of the sliding locking assemblies 14 is the same as the number of drilling areas of the workpiece 4, and the position of the sliding locking assemblies 14 on the inner side of the turntable assembly 13 corresponds to the drilling area of ​​the workpiece 4, that is, when one of the sliding locking assemblies 14 rotates to the topmost position of the turntable assembly 13, the drilling area corresponding to this sliding locking assemblies 14 is directly below the drilling reference assembly 5, and the position of the sliding locking assemblies 14 on the inner side of the turntable assembly 13 can be changed; the space between the outer fixing ring 132 and the inner fixing ring 134 forms an annular groove, and the space between the bottom plate 131 and the outer fixing ring 132 forms an annular gap, and the annular gap is connected to the annular groove;

[0053] Since the position of the drilling area on the workpiece 4 may vary due to different product designs or functional requirements, the position of the corresponding sliding locking assembly 14 on the inner side of the turntable assembly 13 can also change accordingly. The rapid adjustment capability of the sliding locking assembly 14 allows the equipment to quickly adapt to new drilling requirements, reducing production interruptions and conversion time.

[0054] The sliding locking assembly 14 includes an arc block 141 slidably arranged in the annular groove. The two sides of the sliding locking assembly 14 are respectively adapted to the outer fixing ring 132 and the inner fixing ring 134, so that the sliding locking assembly 14 can slide smoothly in the annular groove. An embedded column 142 is fixedly arranged inside the arc block 141, and the embedded column 142 passes through the arc block 141. The embedded column 142 is a cylinder, and one end of the embedded column 142 passes through the annular notch and extends to the outside of the turntable assembly 13. A threaded portion is provided at the end of the embedded column 142 outside the turntable assembly 13, and an elastic pad 143 is threadedly connected to the threaded portion of the embedded column 142. The side of the elastic pad 143 close to the arc block 141 is adapted to the chassis 131 and the outer fixing ring 132. A second screw 144 is fixedly connected to the rear side of the other end of the embedded column 142. The second screw 144 passes through the space between the inner fixing ring 134 and the circular plate 133, and a nut 145 is threadedly connected to the second screw 144.

[0055] The sides of the arc block 141 are symmetrically provided with grip grooves, which can facilitate the staff to hold the arc block 141. The inner fixed ring 134 is provided with a ring-shaped scale value, and the distance between two adjacent sliding locking components 14 is adjusted according to the scale value.

[0056] After the position of the sliding locking assembly 14 on the inner side of the turntable assembly 13 is determined, the elastic pad 143 is rotated so that the elastic pad 143 fits tightly against the outer arc surface of the chassis 131 and the outer fixing ring 132, and the nut 145 is rotated so that the nut 145 fits tightly against the inner fixing ring 134 and the back side of the circular plate 133, thereby fixing the position of the sliding locking assembly 14.

[0057] Mark several drilling areas on the workpiece 4. There cannot be more than one drilling area on the same horizontal plane. First, fix one of the sliding locking components 14 at any position on the inner side of the turntable component 13. Set the position of this sliding locking component 14 to correspond to the frontmost drilling area of ​​the workpiece 4. According to the distance between the frontmost drilling area of ​​the workpiece 4 and the next drilling area, adjust this sliding locking component 14 and the next sliding locking component 14 (there are two next sliding locking components 14 adjacent to this sliding locking component 14. Select the corresponding one by rotating the turntable component 13 clockwise or counterclockwise. The distance between the sliding locking components 14 is adjusted so that the distance between this sliding locking component 14 and the next sliding locking component 14, and the distance between the frontmost drilling area and the next drilling area are matched, and the position of the next sliding locking component 14 is fixed. Then, according to the distance between the previous next drilling area and the subsequent drilling area, the distance between the previous next sliding locking component 14 and the subsequent sliding locking component 14 is adjusted, and the position of the subsequent sliding locking component 14 is fixed. In this way, each drilling area has a corresponding sliding locking component 14 corresponding to it.

[0058] It should be noted that the distance between the two drilling areas refers to the straight-line distance between the projections of the two drilling areas on the vertical plane of the circular plate 133 .

[0059] A vertical positioning component is provided on the back of the device body 1, and the vertical positioning component is used to position the sliding locking component 14 to the topmost position of the turntable component 13, that is, the corresponding embedded column 142 is vertically arranged, and the vertical positioning component includes a moving slide 12 slidably arranged on the back of the device body 1, and a cylinder 11 is symmetrically fixedly arranged on the back of the device body 1, and the output end of the cylinder 11 is fixedly connected to the bottom end of the moving slide 12, and a sleeve 10 is fixedly connected to the middle of the bottom end of the moving slide 12, and the bottom end of the sleeve 10 is open, and one side of the sleeve 10 is opened. There is a notch, and the inner radius of the sleeve 10 is the same as the radius of the embedded column 142. A socket group is symmetrically opened at the notch of the sleeve 10, and the socket group includes a plurality of vertically arranged sockets. An arc-shaped connecting plate 8 is provided on the outer side of the sleeve 10. The arc-shaped connecting plate 8 matches the notch of the sleeve 10, and the arc-shaped connecting plate 8 can seal the notch of the sleeve 10. A plug block group is symmetrically opened on the side of the arc-shaped connecting plate 8 close to the sleeve 10, and the plug block group includes a plurality of vertically arranged plug blocks. The plug blocks are adapted to the sockets, and the plug blocks can be inserted into the sockets to form a plug-in structure.

[0060] When it is necessary to position one of the sliding locking components 14 to the topmost position of the turntable component 13, start the cylinder 11, and the output end of the cylinder 11 drives the moving slide 12 and the sleeve 10 to move downward a certain distance as a whole, and then stop the operation of the cylinder 11. Then, hold the sliding locking component 14 and rotate it, and the other sliding locking components 14 and the turntable component 13 will rotate together until the embedded column 142 of the sliding locking component 14 contacts the inner wall of the sleeve 10, and then insert the plug of the arc-shaped connecting plate 8 into the socket of the sleeve 10 to form an interlocking structure, and preliminarily fix the turntable component 13 and the sliding locking component 14 as a whole.

[0061] The adaptability design of the plug block and the socket ensures that the arc-shaped connecting plate 8 can be tightly fixed in the notch of the sleeve 10 to form a stable connection structure. When the embedded column 142 is inside the arc-shaped connecting plate 8 and the sleeve 10, this connection structure preliminarily fixes the turntable assembly 13 and the sliding locking assembly 14 as a whole.

[0062] A clamping assembly 9 is symmetrically arranged on the back of the device body 1, and the clamping assembly 9 is used to further fix the turntable assembly 13 and the sliding locking assembly 14 as a whole. The clamping assembly 9 includes a fixed plate 92 rotatably connected to the back of the device body 1, and a first screw 93 is threadedly connected to the fixed plate 92. A threaded groove for the first screw 93 to be threadedly connected is provided on the back of the device body 1. A fixed column 91 is fixedly connected to the back of the fixed plate 92, and a reinforcement ring 94 is fixedly sleeved on the fixed column 91. A connecting rod 95 is fixedly connected to the side of the reinforcement ring 94, and a threaded sleeve 96 is fixedly connected to the end of the connecting rod 95 away from the reinforcement ring 94. A bolt 97 is threadedly connected to the inner thread of the threaded sleeve 96. The bolt 97 penetrates the threaded sleeve 96, and a positioning plate 98 is fixedly connected to the end of the threaded sleeve 96.

[0063] In the initial state, the connecting rod 95 moves vertically downward under the action of gravity. When the turntable assembly 13 and the sliding locking assembly 14 need to be further fixed as a whole, the staff holds the connecting rod 95 by hand and rotates it 90° with the fixed column 91 as the axis, and rotates the first screw 93 so that the first screw 93 is threadedly connected to the thread groove of the equipment body 1 to fix the position of the fixed plate 92. Then, the bolt 97 is rotated, and the bolt 97 drives the positioning plate 98 to move in the direction of the circular plate 133 until the positioning plate 98 is tightly fitted with the circular plate 133, thereby further fixing the turntable assembly 13 and the sliding locking assembly 14 as a whole.

[0064] The drilling reference assembly 5 includes a fixed plate 51 fixedly connected to the inner wall of the device body 1, a through rectangular notch 52 is opened in the middle of the fixed plate 51, and a plurality of sliders 55 are slidably connected inside the rectangular notch 52. The number of the sliders 55 is the same as the number of the drilling areas. A through fixing hole 56 is opened in the middle of the slider 55, and the fixing hole 56 is used as a reference for drilling. A plurality of first motors 53 are fixedly arranged at the bottom end of the drilling reference assembly 5. The first motors 53 are arranged one-to-one with the sliders 55. The output end of the first motor 53 passes through the fixed plate 51 and is fixedly connected with a linkage rod 54. The slider 55 is rotatably connected with the corresponding linkage rod 54 through a swivel pin, and a through opening for adapting to the swivel pin is opened on the linkage rod 54.

[0065] When one of the sliding locking assemblies 14 is positioned to the topmost position of the turntable assembly 13, it means that the drilling area corresponding to this sliding locking assembly 14 is directly below the fixed plate 51, and the corresponding first motor 53 is started. The first motor 53 drives the corresponding linkage rod 54 to rotate, and the linkage rod 54 drives the corresponding slider 55 to move in the rectangular notch 52 through the turn pin until this slider 55 is directly above the corresponding drilling area.

[0066] Each slider 55 can accurately correspond to the corresponding drilling area. This design ensures the accuracy and stability of the reference when drilling. The fixed hole 56 in the middle of the slider 55 serves as the reference for drilling, so that the drill bit can operate based on this precise point when drilling, thereby improving the accuracy of drilling.

[0067] A drilling assembly 6 is provided at the upper end of the equipment body 1. The drilling assembly 6 includes a fixed frame 61 arranged above the equipment body 1. A hydraulic cylinder 62 is symmetrically fixedly provided at the upper end of the equipment body 1. The output end of the hydraulic cylinder 62 is fixedly connected to the bottom end of the fixed frame 61. A T-shaped slot is opened in the middle of the bottom end of the fixed frame 61. A screw rod 64 is rotatably connected in the T-shaped slot. A second motor 65 is fixedly provided on the outer side of the fixed frame 61. The output end of the second motor 65 passes through the side wall of the fixed frame 61 and is fixedly connected to one end of the screw rod 64. A threaded block 63 is threadedly connected to the screw rod 64. The threaded block 63 is T-shaped. A drilling rig 66 is fixedly provided at the bottom end of the threaded block 63. Guide rods are symmetrically fixedly provided in the T-shaped slot. The guide rods pass through the threaded block 63 to realize the linear motion of the threaded block 63.

[0068] Start the second motor 65, which drives the screw rod 64 to rotate, so that the threaded block 63 and the drill rig 66 move as a whole toward the slider 55 that cooperates with them, until the drill rig 66 is directly above the slider 55 that cooperates with them, start the hydraulic cylinder 62 and the drill rig 66, and the drill bit of the drill rig 66 rotates. The hydraulic cylinder 62 drives the fixed frame 61 and the drill rig 66 to move downward as a whole to perform drilling operations on the drilling area on the workpiece 4.

[0069] In order to prevent dust from entering the parts on the back of the device body 1 and thus affecting the operation of the parts, a protective shell 7 is provided on the back of the device body 1. A switch door 71 is symmetrically hinged on the rear side of the protective shell 7. By opening the switch door 71, the parts inside the protective shell 7 can be operated.

[0070] A workpiece positioning method, using the above-mentioned workpiece positioning device, comprises the following steps:

[0071] The workpiece 4 is sleeved on the outer side of the rotating shaft 31, and the front end surface of the workpiece 4 is aligned with the front end surface of the rotating shaft 31;

[0072] The two electric push rods 32 are started, so that the telescopic ends of the two symmetrically arranged electric push rods 32 approach each other, and the electric push rods 32 drive the corresponding conical cylinder 36 to move toward the inner direction of the rotating shaft 31. The conical end of the conical cylinder 36 squeezes the multiple sliding rods 33 around, so that the sliding rods 33 move along the length direction of the corresponding connecting column 34. The sliding rods 33 drive the corresponding arc-shaped pasting plates 35 to move toward the inner wall direction of the workpiece 4 by connecting the connecting column 34;

[0073] A plurality of arc-shaped plates 35 cooperate with each other to fix the workpiece 4 .

[0074] A workpiece processing technology uses the above-mentioned workpiece positioning device.

[0075] Working principle:

[0076] Use the inner support assembly 3 to fix the workpiece 4 (it is necessary to ensure that the front end surface of the workpiece 4 is aligned with the front end surface of the rotating shaft 31), mark several drilling areas on the workpiece 4, and there cannot be more than one drilling area on the same horizontal plane. First, fix one of the sliding locking assemblies 14 at any position on the inner side of the turntable assembly 13, set the position of this sliding locking assembly 14 to correspond to the front end drilling area of ​​the workpiece 4, and adjust the distance between this sliding locking assembly 14 and the next sliding locking assembly 14 according to the distance between the front end drilling area of ​​the workpiece 4 and the next drilling area. The distance between the sliding locking assembly 14 and the next sliding locking assembly 14 is adjusted so that the distance between the sliding locking assembly 14 and the next sliding locking assembly 14 and the distance between the frontmost drilling area and the next drilling area are matched, and the position of the next sliding locking assembly 14 is fixed. Then, according to the distance between the previous next drilling area and the subsequent drilling area, the distance between the previous next sliding locking assembly 14 and the subsequent sliding locking assembly 14 is adjusted, and the position of the subsequent sliding locking assembly 14 is fixed. In this way, each drilling area has a corresponding sliding locking assembly 14 corresponding to it.

[0077] When one of the sliding locking components 14 is positioned to the topmost position of the turntable component 13, the cylinder 11 is started, and the output end of the cylinder 11 drives the moving slide plate 12 and the sleeve 10 to move downward a certain distance as a whole, and the operation of the cylinder 11 is stopped. Then, the sliding locking component 14 is held and rotated, and the other sliding locking components 14 and the turntable component 13 will rotate together until the embedded column 142 of the sliding locking component 14 contacts the inner wall of the sleeve 10, and then the plug block of the arc-shaped connecting plate 8 is inserted into the plug hole of the sleeve 10 to form an interlocking structure, and the turntable component 13 and the sliding locking component 14 are initially fixed as a whole; the staff holds the connecting rod 95 by hand, and rotates 90° with the fixed column 91 as the rotating axis, and rotates the first screw 93 so that the first screw 93 and the threaded groove of the equipment body 1 are threaded. The bolt 97 is then turned to drive the positioning plate 98 to move in the direction of the circular plate 133 until the positioning plate 98 is tightly fitted with the circular plate 133, thereby further fixing the rotating disk assembly 13 and the sliding locking assembly 14 as a whole, and starting the corresponding first motor 53. The first motor 53 drives the corresponding linkage rod 54 to rotate, and the linkage rod 54 drives the corresponding slider 55 to move in the rectangular notch 52 through the rotating pin until the slider 55 is directly above the corresponding drilling area, and the drilling assembly 6 is used to perform drilling operations on the drilling area on the workpiece 4; after the drilling work is completed, the hydraulic cylinder 62 needs to be started to reset the fixing frame 61, and the cylinder 11 needs to be started. The output end of the cylinder 11 drives the moving slide 12 and the sleeve 10 to move upward as a whole for reset;

[0078] According to the above method, the drilling operation can be performed on the remaining drilling areas on the workpiece 4 in sequence.

[0079] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A workpiece positioning device, comprising a device body, wherein an internal support assembly and a workpiece are arranged inside the device body, characterized in that: It also includes a turntable assembly arranged outside the device body, and the turntable assembly is connected to the inner support assembly; The turntable assembly includes a chassis rotatably connected to the back of the device body, a coaxially arranged circular plate is fixedly connected to the back of the chassis, an outer fixing ring and an inner fixing ring are arranged at the rear of the chassis, and the inner fixing ring and the outer fixing ring are in the same vertical plane, and the inner fixing ring, the outer fixing ring and the back of the circular plate are aligned; A plurality of sliding locking assemblies are arranged in a circular array on the inner side of the turntable assembly. The number of the sliding locking assemblies is the same as the number of drilling areas of the workpiece. The sliding locking assembly includes an arc block, which is integrally slidably matched with the chassis, the inner fixing ring, and the outer fixing ring, and the sliding track of the arc block is circular. An embedded column is fixedly arranged inside the arc block, and an elastic pad is threadedly connected to the embedded column. A second screw is fixedly connected to the rear side of the other end of the embedded column, and a nut is threadedly connected to the second screw. A vertical positioning assembly is provided on the back of the device body, and the vertical positioning assembly is used to position the sliding locking assembly to the topmost position of the turntable assembly; A clamping assembly is symmetrically arranged on the back of the device body, and the clamping assembly is used to fix the turntable assembly and the sliding locking assembly.

2. A workpiece positioning device according to claim 1, characterized in that: The internal support assembly includes a rotating shaft rotatably arranged inside the main body of the equipment. The interior of the rotating shaft is hollow, and an electric push rod is symmetrically fixedly arranged inside the rotating shaft. The telescopic end of the electric push rod is fixedly connected to a conical cylinder, and the end of the conical cylinder away from the electric push rod is conical. A plurality of sliding rods are slidably arranged in a circular array inside the rotating shaft, and the ends of the sliding rods are adapted to the conical ends of the conical cylinders. A plurality of connecting columns are fixedly connected to the side surfaces of the sliding rods close to the inner wall of the rotating shaft, and the plurality of connecting columns are equidistantly distributed on the corresponding sliding rods. The connecting columns penetrate the side walls of the rotating shaft and extend to the outside of the rotating shaft, and the ends of the connecting columns outside the rotating shaft are fixedly connected to an arc-shaped plate.

3. A workpiece positioning device according to claim 2, characterized in that: The front side of the chassis is fixedly connected to one end of the rotating shaft, the chassis and the rotating shaft are coaxially arranged, one end of the rotating shaft passes through the side wall of the equipment body, the inner fixing ring is on the inner side of the outer fixing ring, and multiple connecting parts are connected between the chassis, the outer fixing ring and the inner fixing ring. The multiple connecting parts are arranged in a circular array, one end of the connecting part is fixedly connected to the side wall of the chassis, and two extensions are fixedly connected to the inner side of the connecting part, and the two extensions are respectively fixedly connected to the back sides of the outer fixing ring and the inner fixing ring.

4. A workpiece positioning device according to claim 2, characterized in that: The space between the outer fixing ring and the inner fixing ring forms an annular groove, and the space between the chassis and the outer fixing ring forms an annular notch, which is connected to the annular groove. The arc block is slidably arranged in the annular groove. The two sides of the sliding locking assembly are respectively adapted to the outer fixing ring and the inner fixing ring, and the embedded column passes through the arc block. The embedded column is a cylinder, and one end of the embedded column passes through the annular notch and extends to the outside of the turntable assembly. A threaded portion is provided on the end of the embedded column outside the turntable assembly. The side of the elastic pad close to the arc block is adapted to the chassis and the outer fixing ring, and the second screw passes through the space between the inner fixing ring and the circular plate.

5. A workpiece positioning device according to claim 2, characterized in that: The side surfaces of the arc block are symmetrically provided with handgrip grooves, and the inner fixing ring is provided with scale values ​​of annular design.

6. A workpiece positioning device according to claim 2, characterized in that: The vertical positioning assembly includes a movable slide plate slidably arranged on the back of the equipment body, a sleeve is fixedly connected to the middle of the bottom end of the movable slide plate, and an arc-shaped connecting plate is arranged on the outer side of the sleeve. A cylinder is symmetrically fixedly arranged on the back of the equipment body, and the output end of the cylinder is fixedly connected to the bottom end of the movable slide plate. The bottom end of the sleeve is open, and a notch is provided on one side of the sleeve. The inner radius of the sleeve is the same as the radius of the embedded column, and a socket group is symmetrically provided at the notch of the sleeve. The socket group includes a plurality of vertically arranged sockets. The arc-shaped connecting plate matches the notch of the sleeve. A plug block group is symmetrically provided on the side of the arc-shaped connecting plate close to the sleeve, and the plug block group includes a plurality of vertically arranged plug blocks, and the plug blocks are adapted to the sockets.

7. A workpiece positioning device according to claim 2, characterized in that: The clamping assembly includes a fixed plate rotatably connected to the back of the equipment body, a first screw is threadedly connected to the fixed plate, a threaded groove for the first screw to be threadedly connected is opened on the back of the equipment body, a fixed column is fixedly connected to the back of the fixed plate, a reinforcement ring is fixedly sleeved on the fixed column, a connecting rod is fixedly connected to the side of the reinforcement ring, a threaded sleeve is fixedly connected to the end of the connecting rod away from the reinforcement ring, a bolt is threadedly connected to the internal thread of the threaded sleeve, the bolt passes through the threaded sleeve, and a positioning plate is fixedly connected to the end of the threaded sleeve.

8. A workpiece positioning device according to claim 2, characterized in that: A drilling reference assembly is arranged inside the main body of the equipment. The drilling reference assembly is located directly above the workpiece. The drilling reference assembly includes a fixed plate fixedly connected to the inner wall of the main body of the equipment. A through rectangular notch is provided in the middle of the fixed plate. A plurality of sliders are slidably connected inside the rectangular notch. The number of the sliders is the same as the number of the drilling areas. A through fixing hole is provided in the middle of the slider. A plurality of first motors are fixedly arranged at the bottom end of the drilling reference assembly. The first motors are arranged one-to-one with the sliders. The output end of the first motor passes through the fixed plate and is fixedly connected with a linkage rod. The slider is rotatably connected with the corresponding linkage rod through a rotating pin. A through hole for adapting to the rotating pin is provided on the linkage rod. A drilling assembly is arranged at the upper end of the equipment body, and the drilling assembly includes a fixed frame arranged above the equipment body. A hydraulic cylinder is symmetrically fixedly arranged at the upper end of the equipment body, and the output end of the hydraulic cylinder is fixedly connected to the bottom end of the fixed frame. A T-shaped slot is opened in the middle of the bottom end of the fixed frame, and a screw rod is rotatably connected in the T-shaped slot. A second motor is fixedly arranged on the outer side of the fixed frame, and the output end of the second motor passes through the side wall of the fixed frame and is fixedly connected to one end of the screw rod. A threaded block is threadedly connected to the screw rod, and the threaded block is T-shaped. A drilling rig is fixedly arranged at the bottom end of the threaded block. A switch door is symmetrically hinged on the rear side of the protective shell, and a protective door is symmetrically slidably installed on the front end of the device body.

9. A workpiece positioning method, using the workpiece positioning device as described in any one of claims 2 to 8, comprising the following steps: Put the workpiece on the outside of the rotating shaft, and align the front end surface of the workpiece with the front end surface of the rotating shaft; Start the two electric push rods, so that the telescopic ends of the two symmetrically arranged electric push rods approach each other, and the electric push rods drive the corresponding conical cylinder to move toward the inner direction of the rotating shaft. The conical end of the conical cylinder squeezes multiple sliding rods around, so that the sliding rods move along the length direction of the corresponding connecting column. The sliding rod drives the corresponding arc-shaped pasting plate to move toward the inner wall of the workpiece by connecting the connecting column; A plurality of arc-shaped plates cooperate with each other to fix the workpiece.

10. A workpiece machining process, using the workpiece positioning device as claimed in any one of claims 1 to 8.

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