Clamping device for drilling machining

Abstract

The utility model relates to the technical field of clamp manufacturing, in particular to a clamping device for drilling machining, which comprises a carrying table, a rotary driving platform, an inner support clamping mechanism and a drilling guide mechanism. The rotary driving platform is fixed on the carrying table; the inner supporting clamping mechanism comprises a circular truncated cone, a lead screw, a rotation driving assembly and two clamping blocks, the drilling guide mechanism comprises a pressing plate, a template and two lifting driving assemblies, a profiling groove is machined in the bottom face of the pressing plate, and a plurality of guide holes communicating with the profiling groove are correspondingly formed in the pressing plate and the template; the motor end cover can be automatically clamped from the interior of the motor end cover through the inner supporting clamping mechanism, manual clamping is avoided, the labor time of operators is shortened, the working efficiency is improved, in addition, drilling dislocation of a drilling tool in the drilling process can be avoided through the drilling guide mechanism, the yield is improved, and the production cost of enterprises is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of fixture manufacturing, and particularly discloses a clamping device for drilling processing. Background Art

[0002] The end cap, commonly known as the "end cap," is a rear cover installed behind the motor housing. The quality of the end cap directly affects the motor's performance; therefore, we must first understand the criteria for a good end cap. A good end cap primarily relies on the brushes, which are the core of the motor and drive the rotor, making them the most critical component.

[0003] During the production and processing of the end cover, it is necessary to drill holes in the motor end cover. The end cover drilling fixture in the prior art has the following defects:

[0004] First, the operator needs to manually operate the fixture to clamp the motor end cover from the outside, which is time-consuming and labor-intensive, and it is difficult to improve work efficiency;

[0005] Second, the drilling tool cannot be guaranteed to drill smoothly, which can easily cause deviations in the hole position, resulting in a high defective product rate and increased production costs for the company.

[0006] Based on this, the utility model designs a clamping device for drilling processing to solve the above problems. Utility Model Content

[0007] In order to overcome the deficiencies of the prior art, the utility model discloses a clamping device for drilling.

[0008] To achieve the above-mentioned purpose, the present invention is implemented through the following technical solutions: A clamping device for drilling processing, comprising a carrier, a rotary drive platform, an internal support clamping mechanism and a drilling guide mechanism;

[0009] The rotary drive platform is fixed on the carrier;

[0010] The internal support clamping mechanism includes a round table, a screw rod, a rotation drive assembly and two clamping blocks, the round table is arranged on a rotating platform, a through groove is provided in the interior of the round table along its radial direction, blind grooves communicating with the through groove are respectively provided on both sides of the upper surface of the round table, the rotation drive assembly is arranged on the outer ring of the round table corresponding to one end of the through groove, the screw rod is passed through the through groove and rotated by the rotation drive, the screw rod is provided with two threaded portions in opposite directions, the two clamping blocks are respectively arranged in the two blind grooves and extend outward, and the two clamping blocks are respectively connected to the two threaded portions of the screw rod;

[0011] The drilling guide mechanism includes a pressing plate, a template and two lifting drive components. The template is movably arranged above the inner support clamping mechanism. The two lifting drive components are respectively arranged on opposite sides of the bottom of the carrier and their lifting parts pass through the carrier to connect the pressing plate. The template is arranged at the bottom of the pressing plate and is opposite to the inner support clamping mechanism. The bottom surface of the pressing plate is processed with a profiling groove, and a number of guide holes communicating with the profiling grooves are correspondingly opened on the pressing plate and the template.

[0012] Further preferably, the rotation driving platform is a dividing plate, and the dividing plate drives the circular table to rotate 90 degrees each time.

[0013] It is further preferred that the rotation drive assembly includes a servo motor with a reducer connected to its output shaft, the reducer and the servo motor are both arranged on the outer ring of the cone corresponding to one end of the through slot, and the drive shaft of the reducer is connected to the screw rod.

[0014] Further preferably, bearings are installed at both ends of the through slot, and both ends of the screw rod extend through the inner rings of the two bearings.

[0015] Further preferably, the sides of the two clamping blocks that are away from each other are configured as an arc-shaped structure, and the sides of the two clamping blocks that are away from each other are both provided with MC cast nylon.

[0016] Further preferably, the two lifting drive components are one of a pneumatic cylinder, an electric cylinder or a hydraulic cylinder.

[0017] The utility model achieves the following beneficial effects:

[0018] The present application can automatically clamp the motor end cover from the inside through the internal support clamping mechanism, avoiding manual clamping, reducing the operator's working time, and improving work efficiency. In addition, the drilling guide mechanism can prevent the drilling tool from being misaligned during the drilling process, thereby improving the yield rate and reducing the company's production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure, and together with the description, serve to explain the principles of the present disclosure.

[0020] Figure 1 This is a schematic diagram of the overall structure disclosed in the utility model;

[0021] Figure 2 This is a schematic diagram of the clamping block structure disclosed in the utility model. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0024] Example

[0025] In order to solve the problem that the drilling fixture in the prior art cannot automatically clamp the motor end cover and cannot ensure the drilling accuracy, and the drilling misalignment occurs, Figure 1 and Figure 2 As shown, the present application discloses a clamping device for drilling processing, including a carrier 10, a rotary drive platform 20, an internal support clamping mechanism 30 and a drilling guide mechanism 40;

[0026] The rotary drive platform is fixed on the carrier;

[0027] The internal support clamping mechanism includes a truncated table 31, a screw 32, a rotation drive assembly 33 and two clamping blocks 34. The truncated table is arranged on a rotating platform. A through groove 311 is opened in the radial direction of the interior of the truncated table. Blind grooves 312 communicating with the through groove are opened on both sides of the upper surface of the truncated table. The rotation drive assembly is arranged on the outer ring of the truncated table corresponding to one end of the through groove. The screw is inserted into the through groove and rotated by the rotation drive. The screw is provided with two threaded portions 321 in opposite directions. The two clamping blocks are respectively arranged in the two blind grooves and extend outward, and the two clamping blocks are respectively connected to the two threaded portions of the screw.

[0028] The drilling guide mechanism includes a pressing plate 41, a template 42 and two lifting drive components 43. The template is movably arranged above the inner support clamping mechanism. The two lifting drive components are respectively arranged on the opposite sides of the bottom of the carrier and their lifting parts pass through the carrier to connect the pressing plate. The template is arranged at the bottom of the pressing plate and is opposite to the inner support clamping mechanism. The bottom surface of the pressing plate is processed with a contour groove 421, and a number of guide holes 44 communicating with the contour groove are correspondingly opened on the pressing plate and the template.

[0029] Furthermore, the drilling clamping device involved in the present application needs to be installed on a machine tool carrier and matched with a drilling machine tool when in use.

[0030] During specific use, the motor end cover 60 to be drilled is first placed on the circular table and the rotating drive assembly is controlled to drive the screw to rotate so that the two clamping blocks move away from each other until they are in contact with the inner wall of the motor housing and clamped. Next, the two lifting drive assemblies are controlled to drive the pressure plate down until the motor end cover is completely located in the contoured groove. During the processing stage, the drilling tool of the machine tool needs to pass through the guide hole to drill the motor end cover, and after drilling a hole in the motor end cover, the rotating drive platform drives the circular table to rotate the set angle so that the next hole to be drilled is located below the drilling tool.

[0031] Preferably, the rotary drive platform is a dividing plate, which drives the circular table to rotate 90° each time. This setting means that the motor end cover involved in this application needs to be drilled at four places. In addition, in actual use, if the rotary drive platform of other structures can also meet the use requirements of this application, personnel in this technical field can also adaptably choose it.

[0032] In some embodiments, the rotation drive assembly includes a servo motor 332 whose output shaft is connected to a reducer 331. The reducer and the servo motor are both arranged on the outer ring of the cone corresponding to one end of the through slot. The drive shaft of the reducer is connected to the screw rod. During specific use, the servo motor and the reducer cooperate to drive the screw rod to move forward and reverse. During this process, the two clamping blocks can move closer to or away from each other, thereby clamping or loosening the motor end cover. The degree of automation is high, which avoids the operator's manual participation in fixing the motor housing and improves work efficiency.

[0033] In order to achieve the installation of the screw rod, the present application installs bearings 50 at both ends of the inner part of the through groove, and the two ends of the screw rod extend through the inner rings of the two bearings respectively. Based on this design, when the rotating drive assembly drives the screw rod to rotate, the screw rod can rotate smoothly in the through groove.

[0034] In one specific embodiment, the sides of the two clamping blocks that are away from each other are set as an arc structure, and the sides of the two clamping blocks that are away from each other are both provided with MC cast nylon 341, thereby improving wear resistance and increasing the service life of the clamping blocks.

[0035] It can also be selected that the two lifting drive components are one of the pneumatic cylinders, electric cylinders or hydraulic cylinders. In actual use, if lifting drive components of other structures can also meet the use requirements of this application, personnel in this technical field can also adaptably choose them.

[0036] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0037] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made in accordance with the spirit of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A clamping device for drilling, characterized in that: It includes a carrier, a rotary drive platform, an internal support clamping mechanism and a drilling guide mechanism; The rotary drive platform is fixed on the carrier; The internal support clamping mechanism includes a round table, a screw rod, a rotation drive assembly and two clamping blocks, the round table is arranged on a rotating platform, a through groove is provided in the interior of the round table along its radial direction, blind grooves communicating with the through groove are respectively provided on both sides of the upper surface of the round table, the rotation drive assembly is arranged on the outer ring of the round table corresponding to one end of the through groove, the screw rod is passed through the through groove and rotated by the rotation drive, the screw rod is provided with two threaded portions in opposite directions, the two clamping blocks are respectively arranged in the two blind grooves and extend outward, and the two clamping blocks are respectively connected to the two threaded portions of the screw rod; The drilling guide mechanism includes a pressing plate, a template and two lifting drive components. The template is movably arranged above the inner support clamping mechanism. The two lifting drive components are respectively arranged on opposite sides of the bottom of the carrier and their lifting parts pass through the carrier to connect the pressing plate. The template is arranged at the bottom of the pressing plate and is opposite to the inner support clamping mechanism. The bottom surface of the pressing plate is processed with a profiling groove, and a number of guide holes communicating with the profiling grooves are correspondingly opened on the pressing plate and the template.

2. A drilling clamping device according to claim 1, characterized in that: The rotary drive platform is a dividing plate, and the dividing plate drives the circular table to rotate 90 degrees each time.

3. A drilling clamping device according to claim 1, characterized in that: The rotation drive assembly includes a servo motor with a reducer connected to its output shaft. The reducer and the servo motor are both arranged on the outer ring of the truncated cone corresponding to one end of the through slot. The drive shaft of the reducer is connected to the screw rod.

4. A drilling clamping device according to claim 1, characterized in that: Bearings are installed at both ends of the through slot, and both ends of the screw rod extend through the inner rings of the two bearings.

5. The drilling clamping device according to claim 1, characterized in that: The sides of the two clamping blocks that are away from each other are set as an arc structure, and the sides of the two clamping blocks that are away from each other are both provided with MC cast nylon.

6. The drilling clamping device according to claim 1, characterized in that: The two lifting drive components are one of an air cylinder, an electric cylinder or a hydraulic cylinder.

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