Quick positioning device for screw machine head

Abstract

The utility model discloses a quick positioning device for a screw machine head. The quick positioning device for the screw machine head comprises a lifting module and a plurality of machine head modules, the lifting module comprises a basic module and a lifting motor, a machining face is arranged on the basic module, and the lifting motor is connected with the basic module and used for driving the basic module to ascend and descend in a reciprocating mode. The multiple machine head modules are arranged on the machining face at intervals. The machine head module comprises a screw chuck and a visual camera unit, the screw chuck and the visual camera unit are arranged side by side, and the visual camera unit is used for scanning and recognizing the coordinate position of a screw hole and giving parameters to adjust the alignment direction of the screw chuck. According to the quick positioning device for the screw machine head, the plurality of machine head modules are arranged, and each machine head module can be used for screwing screws, so that two or three same products can be synchronously machined in the same batch, and the production and machining efficiency is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of screw machines, and in particular relates to a fast positioning device for a screw machine head. Background Art

[0002] A screw is a tool used to fasten objects and parts. It is a standardized part that users can choose as needed. In the process of using screws, users generally twist them manually. In the mechanized production process, screw machines are also designed. Screw machines are mechanical equipment that automatically locks screws to improve production efficiency. In the prior art, screw machines mainly use single-head processing, with low production efficiency, low positioning accuracy, and even lower production efficiency. Utility Model Content

[0003] The utility model aims to provide a fast positioning device for a screw machine head, so as to solve the above problems existing in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A screw machine head quick positioning device, comprising a lifting module and a plurality of machine head modules;

[0006] The lifting module includes a basic module and a lifting motor. The basic module is provided with a processing surface. The lifting motor is connected to the basic module and is used to drive the basic module to lift and reciprocate.

[0007] A plurality of machine head modules are arranged at intervals on the processing surface;

[0008] The head module includes a screw chuck and a visual camera unit. The screw chuck and the visual camera unit are arranged side by side. The visual camera unit is used to adjust the alignment direction of the screw chuck.

[0009] In a possible design, the head module further includes a base plate, a magnetic scale, a screwdriver head motor, a screwdriver head pre-pressure adjustment nut, a ring sensor and a torque mode limit rod;

[0010] The base plate is detachably fixed on the processing surface, and is provided with a first guide rail and a screwdriver bit motor mounting plate slidably arranged on the first guide rail. The magnetic scale is fixed on the side of the screwdriver bit motor mounting plate. The screwdriver bit motor is fixed on the screwdriver bit motor mounting plate and is slidably connected to the first guide rail through a slider. The first guide rail is fixed on the base plate. The output end of the screwdriver bit motor is connected to a screwdriver bit through a screwdriver bit quick clamp. The screw chuck is set on the screwdriver bit. Accordingly, the screwdriver bit passes through the screw chuck.

[0011] A screwdriver bit pre-pressure adjustment rod is provided on the side of the screwdriver bit motor mounting plate. The screwdriver bit pre-pressure adjustment rod and the magnetic scale are respectively located at both ends of the screwdriver bit motor mounting plate. The upper end of the screwdriver bit pre-pressure adjustment rod is fixedly connected to the screwdriver bit pre-pressure adjustment nut, and the lower end of the screwdriver bit pre-pressure adjustment rod is fixedly connected to the screwdriver bit motor mounting plate.

[0012] The annular sensor is fixed on the base plate and located above the screwdriver head motor. Accordingly, an outer protrusion is provided at the upper end of the base plate, and the annular sensor is fixed on the outer protrusion. The torque mode limit rod is passed through the outer protrusion and is arranged on the same side as the magnetic scale. The torque mode limit rod is provided with an adjusting nut located above the outer protrusion.

[0013] In a possible design, a screw chuck mounting plate is provided below the base plate, the screw chuck mounting plate is slidably connected to the first guide rail via a slider, and a portion of the first guide rail is covered below the screw chuck mounting plate.

[0014] In one possible design, one of the several head modules is constructed as a static module fixed on one side of the processing surface, and the other head modules are constructed as movable modules that are spaced and slidably arranged. Accordingly, the basic module is provided with a slide rail adapted for the movable module.

[0015] In a possible design, a width adjustment mechanism for connecting a plurality of head modules is provided on the basic module, and the width adjustment mechanism includes a driver, a transmission wheel group, a positioning screw and a second guide rail connected in sequence, the driver is fixed on the basic module and connected to the positioning screw through the transmission wheel group, and the positioning screw and the second guide rail are both arranged on the base plate and parallel to each other;

[0016] The head module comprises a base plate, which is detachably fixed on the processing surface, and a positioning screw rod is arranged on the base plate and can drive the base plate to move back and forth along the direction of the positioning screw rod.

[0017] Beneficial effects:

[0018] The screw machine head quick positioning device is provided with multiple machine head modules, each of which can be used to tighten screws, thereby increasing the number of screws that can be processed in the same batch and effectively improving the efficiency of production and processing. At the same time, with the aid of the vision camera unit, the visual camera unit is used for identification to improve the accuracy of positioning. The screw machine head quick positioning device realizes precise displacement, thereby accurately locking the screws in the screw holes of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The figure is a structural schematic diagram of a screw machine head rapid positioning device.

[0020] Figure 2 This is a schematic diagram of the structure of the head module.

[0021] In the figure:

[0022] 100. Lifting module; 101. Basic module; 102. Lifting motor; 103. Slide rail; 200. Head module; 201. Screw chuck; 202. Visual camera unit; 203. Base plate; 204. Magnetic scale; 205. Bit motor; 206. Bit pre-pressure adjustment nut; 207. Ring sensor; 208. Torque mode limit rod; 209. First guide rail; 210. Bit motor mounting plate; 211. Bit pre-pressure adjustment rod; 212. Bit pre-pressure adjustment rod end; 213. Outer protrusion; 214. Adjustment nut; 215. Bit quick clamp; 216. Screw chuck mounting plate; 300. Width adjustment mechanism; 301. Driver; 302. Transmission wheel set; 303. Position adjustment screw; 304. Second guide rail. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.

[0024] Example:

[0025] like Figure 1 and Figure 2 As shown, a screw head quick positioning device includes a lifting module 100 and a plurality of head modules 200;

[0026] The lifting module 100 includes a base module 101 and a lifting motor 102. The base module 101 is provided with a processing surface. The lifting motor 102 is connected to the base module 101 and is used to drive the base module 101 to lift and reciprocate.

[0027] A plurality of head modules 200 are arranged at intervals on the processing surface;

[0028] The head module 200 includes a screw chuck 201 and a visual camera unit 202 . The screw chuck 201 and the visual camera unit 202 are arranged side by side. The visual camera unit 202 is used to assist in adjusting the alignment direction of the screw chuck 201 .

[0029] The screw machine head quick positioning device is provided with a plurality of machine head modules 200, each of which can be used to tighten screws, thereby increasing the number of screws that can be processed in the same batch, and effectively improving the efficiency of production and processing. At the same time, with the aid of a visual camera unit, scanning and identifying by the visual camera unit 202 is performed to improve the accuracy of alignment, and the screw machine head quick positioning device realizes precise displacement, thereby accurately locking the screws in the screw holes of the product.

[0030] When working, the screw machine head quick positioning device is started, the visual camera unit 202 starts the alignment function, and the screw machine head quick positioning device is reset. The visual camera unit 202 scans and identifies the coordinate origin, and then starts to scan and identify the screw holes of the product, calculates the relative coordinates, and the machine head module 200 adjusts the position and aligns the screw holes. The lifting module 100 starts and descends so that the screw chuck 201 clamps the screws, and the screw chuck 201 starts and tightens or loosens the screws to complete a batch of processing. The screw machine head quick positioning device is reset and ready for the next batch of processing.

[0031] In this embodiment, the head module 200 further includes a substrate 203, a magnetic scale 204, a screwdriver motor 205, a screwdriver pre-pressure adjustment nut 206, a ring sensor 207 and a torque mode limit rod 208;

[0032] The base plate 203 is detachably fixed on the processing surface, and is provided with a first guide rail 209 and a screwdriver motor mounting plate 210 slidably arranged on the first guide rail 209. The magnetic scale 204 is fixed on the side of the screwdriver motor mounting plate 210. The screwdriver motor 205 is fixed on the screwdriver motor mounting plate 210 and is slidably connected with the first guide rail 209 through a slider. The first guide rail 209 is fixed on the base plate 203. The output end of the screwdriver motor 205 is connected with a screwdriver through a screwdriver quick clamp 215. The screw chuck 201 is sleeved on the screwdriver, and accordingly, the screwdriver passes through the screw chuck 201.

[0033] A screwdriver pre-pressure adjusting rod 211 is provided on the side of the screwdriver motor mounting plate 210. The screwdriver pre-pressure adjusting rod 211 and the magnetic scale 204 are respectively located at two ends of the screwdriver motor mounting plate 210. The upper end of the screwdriver pre-pressure adjusting rod 211 is fixedly connected to the screwdriver pre-pressure adjusting nut 206, and the lower end of the screwdriver pre-pressure adjusting rod 211 is fixedly connected to the screwdriver motor mounting plate 210.

[0034] The annular sensor 207 is fixed on the base plate 203 and is located above the screwdriver motor 205. Accordingly, an outer protrusion 213 is provided at the upper end of the base plate 203, and the annular sensor 207 is fixed on the outer protrusion 213; the torque mode limit rod 208 is passed through the outer protrusion 213 and is arranged on the same side as the magnetic scale 204, and the torque mode limit rod 208 is provided with an adjusting nut 214 located above the outer protrusion 213.

[0035] Based on the above design, the substrate 203 is used to connect the basic module 101, and the substrate 203 can be constructed in any suitable shape. The magnetic scale 204 is used for precise measurement. When the lifting module 100 descends, the measurement result of the magnetic scale 204 is used for fine adjustment, and the relative height between the screw chuck 201 and the product is automatically calibrated. The screwdriver motor 205 provides power for the screwing of the screwdriver, and can accurately control the torque, number of rotations and other parameters of the screwdriver. The screwdriver motor 205 can select any suitable commercial model.

[0036] The screwdriver bit motor mounting plate 210 not only plays a connecting role, but also provides the screw with a downward pressure elastic force, and also provides a buffer force for the screw to the screw. At the same time, the screwdriver bit motor mounting plate 210 is connected to the screwdriver bit pre-pressure adjustment rod 211 through the end 212 of the screwdriver bit pre-pressure adjustment rod. The screw chuck 201 plays a role in keeping the screw in a vertical state and does not rotate during the working process. The annular sensor 207 is used to sense whether there is a screw passing through.

[0037] The screw head quick positioning device is provided with two working modes, namely, magnetic grid mode and torque mode. The former automatically calibrates the relative height between the screw head quick positioning device and the product through the magnetic grid scale 204; the latter adjusts the pre-pressure of the screw head through the screw head pre-pressure adjustment nut 206 and the torque mode limit rod 208, and the screw head pre-pressure adjustment nut 206 and the torque mode limit rod 208 are used separately to avoid screw slippage and ensure processing quality. Specifically, an adjustment nut 214 is provided on the torque mode limit rod 208, and the height of the adjustment nut 214 can be adjusted to limit the descending height of the screw chuck 201.

[0038] In a possible implementation, a quick bit clamp 215 is provided on the output end of the bit motor 205. Based on the above design, the bit can be quickly replaced, and the bit is hard-connected to the output shaft of the bit motor 205 through the quick bit clamp 215.

[0039] In a possible implementation, a screw chuck mounting plate 216 is provided below the base plate 203 , the screw chuck mounting plate 216 is slidably connected to the first guide rail 209 via a slider, and a portion of the first guide rail 209 is covered below the screw chuck mounting plate 216 .

[0040] Based on the above design, the screw chuck mounting plate 216 is used to mount the screw chuck 201, and is slidably connected to the first guide rail 209 through a slider at the bottom. The screw chuck mounting plate 216 has a spring structure on the side to provide a buffer for the screw chuck 201. In the torsion working mode, the torsion mode limit rod 208 can adjust the descending height of the screw chuck mounting plate 216 to prevent the screw chuck 201 from colliding with the product during the descending process. In the magnetic grid working mode, the torsion mode limit rod 208 will not work, and its stroke needs to be adjusted to not affect the movement of the screw chuck mounting plate 216.

[0041] In this embodiment, one of the several head modules 200 is constructed as a static module fixed on one side of the processing surface, and the other head modules 200 are constructed as spaced and slidably arranged dynamic modules. Accordingly, a slide rail 103 adapted to the dynamic module is provided on the basic module 101. Based on the above design scheme, when working, the dynamic module is automatically adjusted in width through the slide rail 103 with the static module as the reference, so as to adjust the spacing between adjacent head modules 200 and adapt to the position of the product, so as to synchronously process two products with different spacings, and the same product with the same equidistant structure can also be applied, which broadens the scope of use of the screw head rapid positioning device.

[0042] In this embodiment, a width adjustment mechanism 300 for connecting a plurality of head modules 200 is provided on the base module 101, and the width adjustment mechanism 300 includes a driver 301, a transmission wheel group 302, a position adjustment screw rod 303 and a second guide rail 304 which are connected in sequence. The driver 301 is fixed on the base module 101 and connected to the position adjustment screw rod 303 through the transmission wheel group 302. The position adjustment screw rod 303 and the second guide rail 304 are both arranged on the base plate 203 and are parallel to each other.

[0043] The head module 200 includes a base plate 203 , which is detachably fixed on the processing surface. The positioning screw 303 is passed through the base plate 203 and can drive the base plate 203 to reciprocate along the direction of the positioning screw 303 .

[0044] Based on the above design, the position of the head module is adjusted by the width adjustment mechanism 300, so that the spacing of the head modules 200 is adapted to the spacing of the products. Specifically, the driver 301 is started, and the driving force of the driver 301 is transmitted to the adjustment screw 303 through the transmission wheel group 302. The rotation of the adjustment screw 303 drives the moving module in the head module 200 to move along the direction of the adjustment screw 303, thereby adjusting the spacing between adjacent head modules 200. At the same time, the second guide rail 304 is used to guide the moving direction of the substrate 203 to prevent the substrate 203 from being skewed.

[0045] like Figure 1As shown, the spacing between the moving modules on the same adjustment rod 303 is kept fixed. In this case, two head modules 200 are preferably provided, one of which is a static module and the other is a moving module. Further, if three or more head modules 200 are provided on the screw head quick positioning device, the number of width adjustment mechanisms 300 needs to be increased accordingly, and the width adjustment mechanisms 300 are provided one-to-one with the moving modules to achieve the adjustment of the spacing between adjacent moving modules.

[0046] Based on this, considering the complexity of the structure, two or three head modules 200 are generally sufficient.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A screw machine head quick positioning device, characterized in that: It comprises a lifting module (100) and a plurality of head modules (200); The lifting module (100) comprises a basic module (101) and a lifting motor (102); the basic module (101) is provided with a processing surface; the lifting motor (102) is connected to the basic module (101) and is used to drive the basic module (101) to lift and reciprocate; A plurality of head modules (200) are arranged at intervals on the processing surface; The head module (200) comprises a screw chuck (201) and a visual camera unit (202); the screw chuck (201) and the visual camera unit (202) are arranged side by side; the visual camera unit (202) is used to adjust the alignment direction of the screw chuck (201).

2. The screw machine head quick positioning device according to claim 1, characterized in that: The head module (200) further comprises a substrate (203), a magnetic scale (204), a screwdriver motor (205), a screwdriver pre-pressure adjustment nut (206), a ring sensor (207) and a torque mode limit rod (208); The base plate (203) is detachably fixed on the processing surface, and a first guide rail (209) and a screwdriver motor mounting plate (210) slidably arranged on the first guide rail (209) are provided on the base plate (203). The magnetic scale (204) is fixed on the side of the screwdriver motor mounting plate (210). The screwdriver motor (205) is fixed on the screwdriver motor mounting plate (210) and is slidably connected to the first guide rail (209) through a slider. The first guide rail (209) is fixed on the base plate (203). The output end of the screwdriver motor (205) is connected to a screwdriver through a screwdriver quick clamp (215). The screw chuck (201) is sleeved on the screwdriver, and the screwdriver passes through the screw chuck (201). A screwdriver bit pre-pressure adjusting rod (211) is provided on the side of the screwdriver bit motor mounting plate (210); the screwdriver bit pre-pressure adjusting rod (211) and the magnetic scale (204) are respectively located at two ends of the screwdriver bit motor mounting plate (210); the upper end of the screwdriver bit pre-pressure adjusting rod (211) is fixedly connected to the screwdriver bit pre-pressure adjusting nut (206); and the lower end of the screwdriver bit pre-pressure adjusting rod (211) is fixedly connected to the screwdriver bit motor mounting plate (210); The annular inductor (207) is fixed on the base plate (203) and is located above the screwdriver head motor (205); accordingly, an outer protrusion (213) is provided at the upper end of the base plate (203), and the annular inductor (207) is fixed on the outer protrusion (213); the torque mode limit rod (208) is passed through the outer protrusion (213) and is arranged on the same side as the magnetic scale (204); and the torque mode limit rod (208) is provided with an adjustment nut (214) located above the outer protrusion (213).

3. The screw machine head quick positioning device according to claim 2, characterized in that: A screw chuck mounting plate (216) is provided below the base plate (203). The screw chuck mounting plate (216) is slidably connected to the first guide rail (209) via a slider. A portion of the first guide rail (209) is covered below the screw chuck mounting plate (216).

4. The screw machine head quick positioning device according to claim 1, characterized in that: One of the plurality of head modules (200) is constructed as a static module fixed on one side of the processing surface, and the other head modules (200) are constructed as movable modules that are spaced and slidably arranged. Accordingly, a slide rail (103) adapted for the movable module is provided on the basic module (101).

5. The screw machine head quick positioning device according to claim 4, characterized in that: A width adjustment mechanism (300) for connecting a plurality of head modules (200) is provided on the basic module (101), the width adjustment mechanism (300) comprising a driver (301), a transmission wheel group (302), a position adjustment screw rod (303) and a second guide rail (304) which are connected in sequence, the driver (301) is fixed on the basic module (101) and connected to the position adjustment screw rod (303) via the transmission wheel group (302), the position adjustment screw rod (303) and the second guide rail (304) are both arranged on the base plate (203) and are parallel to each other; The head module (200) comprises a base plate (203), the base plate (203) is detachably fixed on the processing surface, and the positioning screw (303) is passed through the base plate (203) and can drive the base plate (203) to reciprocate along the direction of the positioning screw (303).

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