Double-end ball base surface grinding machine

Abstract

The utility model relates to the technical field of grinding machines, in particular to a double-headed ball base surface grinding machine which comprises a base, an X-axis displacement mechanism arranged on the base, Y-axis displacement mechanisms arranged on the base on the two sides of the X-axis displacement mechanism, a workpiece clamping mechanism arranged on the X-axis displacement mechanism and a mounting seat arranged on the Y-axis displacement mechanisms. Rotating platforms are rotationally arranged on the mounting base through vertical rotating shafts, a first motor is arranged on the mounting base to drive the rotating platforms to rotate relative to the mounting base, grinding head mechanisms are arranged on the rotating platforms, and the horizontal heights of the grinding head mechanisms on the two rotating platforms are consistent. According to the double-end ball base surface grinding machine, the fixed pressing wheel, the movable pressing wheel and the ejector block are used for clamping a workpiece and driving the workpiece to rotate, meanwhile, the grinding head mechanisms located at the two ends are used for machining ball base surfaces at the two ends of the workpiece, the two end faces are machined at a time, only one-time clamping is needed, the machining efficiency is greatly improved, and meanwhile the machining precision can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding machines, in particular to a double-headed spherical base grinding machine. Background Art

[0002] In the prior art, for spherical base grinding machines, only single-head processing can be carried out. First, the spherical base of one end of the workpiece is processed, then the workpiece is taken off, and after turning the direction, the spherical base of the other end of the workpiece is processed. In this form of processing the spherical bases at both ends of the workpiece, the processing efficiency is relatively low, and the two clamping operations will affect the processing accuracy. Content of the Utility Model

[0003] The utility model provides a double-headed spherical base grinding machine to solve the above technical deficiencies, which can process the spherical bases at both ends of the workpiece at one time, greatly improving the processing efficiency.

[0004] The utility model discloses a double-headed spherical base grinding machine, which includes a base. An X-axis displacement mechanism is arranged on the base, and Y-axis displacement mechanisms are arranged on the base on both sides of the X-axis displacement mechanism. The Y-axis displacement mechanisms are perpendicular to the X-axis displacement mechanism. A workpiece clamping mechanism is arranged on the X-axis displacement mechanism. The workpiece clamping mechanism clamps the middle part of the workpiece, and both ends of the workpiece are exposed to the outside and can drive the workpiece to rotate. An installation seat is arranged on the Y-axis displacement mechanism. A rotating platform is rotatably arranged on the installation seat through a vertical rotating shaft. A first motor is arranged on the installation seat to drive the rotating platform to rotate relative to the installation seat. A grinding head mechanism is arranged on the rotating platform, and the horizontal heights of the grinding head mechanisms on the two rotating platforms are the same.

[0005] The structure of the workpiece clamping mechanism is as follows: It includes a fixed seat arranged on the X-axis displacement mechanism. A fixed pressure wheel is rotatably arranged on the fixed seat. A swing frame is arranged on the fixed seat above the fixed pressure wheel through a pin shaft. The middle part of the swing frame is rotatably connected to the fixed seat. A moving pressure wheel is rotatably arranged on the swing frame directly above the fixed pressure wheel. A vertically downward pushing cylinder is arranged on the fixed seat above the other end of the swing frame relative to the moving pressure wheel. The telescopic end of the pushing cylinder abuts against the swing frame. A tension spring is arranged on the fixed seat beside the pushing cylinder, and the lower end of the tension spring is connected to the swing frame. A pressing cylinder is arranged on the fixed seat on one side between the fixed pressure wheel and the moving pressure wheel. A top block is arranged at the telescopic end of the pressing cylinder, and the top block faces the position between the fixed pressure wheel and the moving pressure wheel. The fixed pressure wheel, the moving pressure wheel and the top block are used to clamp the workpiece. A motor is arranged on the fixed seat, and the motor is in transmission connection with the fixed pressure wheel and the moving pressure wheel, and the rotation directions between the fixed pressure wheel and the moving pressure wheel are opposite.

[0006] A positioning block is arranged on the fixed seat on one side of the fixed pressure wheel and the moving pressure wheel, and the positioning block extends to the range where the fixed pressure wheel, the moving pressure wheel and the top block are used to clamp the workpiece.

[0007] A measuring head is arranged on the fixed seat on the other side of the positioning block. The structure of the measuring head is as follows: an installation plate is arranged on the fixed seat, a sliding cylinder is arranged on the installation plate, the sliding direction of the sliding cylinder is parallel to the axial direction of the workpiece, a telescopic cylinder is arranged on the slider of the sliding cylinder, a connecting seat is arranged at the end of the telescopic cylinder, and a probe is arranged on the connecting seat, and the probe extends to the end of the workpiece.

[0008] A double-head spherical base grinding machine obtained by the present utility model clamps and drives a workpiece to rotate by using a fixed pressure wheel, a moving pressure wheel and a top block. At the same time, the grinding head mechanisms at both ends process the spherical bases at both ends of the workpiece, machining both end faces at one time, and only requiring one clamping. While greatly improving the machining efficiency, the machining accuracy can also be improved. Brief Description of the Drawings

[0009] Figure 1 is the main structural view of the present utility model;

[0010] Figure 2 is the three-dimensional structure of the present utility model Figure 1 ;

[0011] Figure 3 is the three-dimensional structure of the present utility model Figure 2 ;

[0012] Figure 4 is the front structural schematic diagram of the workpiece clamping mechanism of the present utility model;

[0013] Figure 5 is the back structural schematic diagram of the workpiece clamping mechanism of the present utility model;

[0014] Figure 6 is the three-dimensional structure of the workpiece clamping mechanism of the present utility model Figure 1 ;

[0015] Figure 7 is the three-dimensional structure of the workpiece clamping mechanism of the present utility model Figure 2 ;

[0016] Figure 8 is the structural schematic diagram of the measuring head of the present utility model. Detailed Description of the Preferred Embodiments

[0017] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects according to the present utility model as follows.

[0018] Embodiment 1:

[0019] As Figures 1-3As shown in the figure, the utility model discloses a double-headed spherical base surface grinding machine, which includes a base 1. An X-axis displacement mechanism 2 is arranged on the base 1. Y-axis displacement mechanisms 3 are arranged on the base 1 on both sides of the X-axis displacement mechanism 2. The Y-axis displacement mechanism 3 is perpendicular to the X-axis displacement mechanism 2. A workpiece clamping mechanism 8 is arranged on the X-axis displacement mechanism 2. The workpiece clamping mechanism 8 clamps the middle part of the workpiece 810, and both ends of the workpiece 810 are exposed to the outside and can drive the workpiece 810 to rotate. A mounting seat 4 is arranged on the Y-axis displacement mechanism 3. A rotating platform 5 is rotatably arranged on the mounting seat 4 through a vertical rotating shaft. A first motor 6 is arranged on the mounting seat 4 to drive the rotating platform 5 to rotate relative to the mounting seat 4. A grinding head mechanism 7 is arranged on the rotating platform 5. The horizontal heights of the grinding head mechanisms 7 on the two rotating platforms 5 are the same.

[0020] In the field of machine tool technology, the X-axis displacement mechanism 2 and the Y-axis displacement mechanism 3 are both known prior arts. The X-axis displacement mechanism 2 can achieve reciprocating displacement in the X-axis direction, and the Y-axis displacement mechanism 3 can achieve reciprocating displacement in the Y-axis direction. Of course, in this application, the X-axis displacement mechanism and the two Y-axis displacement mechanisms on both sides thereof are independently controlled and act independently. The grinding head mechanism 7 on the Y-axis displacement mechanism 3 is a known structure on the existing spherical base surface grinding machine and will not be elaborated here. In this solution, two sets of grinding head mechanisms 7 are adopted and are arranged opposite to each other. The grinding head mechanism 7 grinds the end part of the workpiece 810 to process the spherical base surface. The rotating platform 5 cooperates with the first motor 6 on the mounting seat 4. Its specific structure can be: a driving gear is arranged on the output shaft of the first motor 6, and the side of the rotating platform 5 is arc-shaped, and a rack is arranged on the arc-shaped side wall. The rack meshes with the driving gear. Therefore, when the first motor 6 rotates, it can drive the rotating platform 5 to rotate, so that the grinding head mechanism 7 on the rotating platform 5 deflects at an angle.

[0021] Such as Figures 4-7As shown in the figure, the structure of the workpiece clamping mechanism 8 is as follows: It includes a fixed seat 81 arranged on the X-axis displacement mechanism 2. A constant pressure wheel 82 is rotatably arranged on the fixed seat 81. A swing frame 84 is arranged on the fixed seat 81 above the constant pressure wheel 82 through a pin shaft. The middle part of the swing frame 84 is rotatably connected to the fixed seat 81. A moving pressure wheel 83 is rotatably arranged on the swing frame 84 directly above the constant pressure wheel 82. A vertically downward pushing cylinder 85 is arranged on the fixed seat 81 above the other end of the swing frame 84 relative to the moving pressure wheel 83. The telescopic end of the pushing cylinder 85 abuts against the swing frame 84. A tension spring 86 is arranged on the fixed seat 81 on the side of the pushing cylinder 85. The lower end of the tension spring 86 is connected to the swing frame 84. A pressing cylinder 88 is arranged on the fixed seat 81 on one side between the constant pressure wheel 82 and the moving pressure wheel 83. A top block 89 is arranged at the telescopic end of the pressing cylinder 88. The top block 89 faces the position between the constant pressure wheel 82 and the moving pressure wheel 83. The constant pressure wheel 82, the moving pressure wheel 83 and the top block 89 are used to clamp the workpiece 810. A motor 87 is arranged on the fixed seat 81. The motor 87 is in transmission connection between the constant pressure wheel 82 and the moving pressure wheel 83, and the rotation directions between the constant pressure wheel 82 and the moving pressure wheel 83 are opposite.

[0022] During actual processing, the pushing cylinder 85 presses down the swing frame 84, overcoming the pulling force of the tension spring 86, causing the side of the swing frame 84 where the moving pressure wheel 83 is located to tilt up, so that the space between the constant pressure wheel 82 and the moving pressure wheel 83 expands and the gap increases, and the workpiece 810 can be placed between the constant pressure wheel 82 and the moving pressure wheel 83. When the pushing cylinder 85 retracts, under the pulling force of the tension spring 86, the swing frame 84 drives the moving pressure wheel 83 to press down, and cooperates with the top block 89 to clamp the workpiece 810 in the area between the constant pressure wheel 82, the moving pressure wheel 83 and the top block 89. The top block 89 presses the workpiece 810 tightly between the constant pressure wheel 82 and the moving pressure wheel 83 under the action of the pressing cylinder 88 to maintain stable clamping. At this time, both ends of the workpiece 810 are exposed on the sides of the constant pressure wheel 82 and the moving pressure wheel 83, so that the grinding head mechanism 7 can process it. The constant pressure wheel 82 and the moving pressure wheel 83 are both driven by the motor 87 to rotate. Pulley 812 can be arranged on the shafts of the constant pressure wheel 82 and the moving pressure wheel 83, and corresponding pulleys 812 can also be arranged on the fixed seat 81. A pulley 812 is also arranged on the output shaft of the motor 87. All the pulleys 812 are connected by belts. Finally, the motor 87 drives the constant pressure wheel 82 and the moving pressure wheel 83 to rotate, and it is necessary to control the rotation directions of the constant pressure wheel 82 and the moving pressure wheel 83 to be opposite to ensure that the workpiece 810 between them can rotate stably. As for how to arrange the pulleys 812 to achieve the opposite rotation directions of the constant pressure wheel 82 and the moving pressure wheel 83, it is known technology in the field and will not be elaborated here.

[0023] A positioning block 811 is provided on the fixed seat 81 on one side of the fixed pressure wheel 82 and the moving pressure wheel 83, and the positioning block 811 extends to the range where the workpiece 810 is clamped between the fixed pressure wheel 82, the moving pressure wheel 83 and the top block 89. The setting of the positioning block 811 can determine the axis position when the workpiece 810 is assembled between the fixed pressure wheel 82 and the moving pressure wheel 83, so as to ensure stable processing.

[0024] As Figure 8 shown, a measuring head is provided on the fixed seat 81 on the other side of the positioning block 811. The structure of the measuring head is as follows: an installation plate 91 is provided on the fixed seat 81, a sliding cylinder 92 is provided on the installation plate 91, the sliding direction of the sliding cylinder 92 is parallel to the axial direction of the workpiece 810, a telescopic cylinder 93 is provided on the slider of the sliding cylinder 92, a connecting seat 94 is provided at the end of the telescopic cylinder 93, and a probe 95 is provided on the connecting seat 94. The probe 95 extends to the end of the workpiece 810. In the art, the probe 95 can detect the machining grinding amount and can transmit digital signals to the controller. The probe 95 is commercially available and its specific structure is known, so it will not be described in detail here. The sliding cylinder 92 and the telescopic cylinder 93 can drive the probe 95 to move to ensure that the probe 95 contacts the end face of the workpiece 810, so as to better measure the machining degree of the workpiece 810.

[0025] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0026] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0027] In the present application, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0028] The above are only the preferred embodiments of the present invention, and do not impose any formal limitations on the present invention. Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments by using the disclosed technical content within the scope of the technical solution of the present invention. However, as long as it does not depart from the content of the technical solution of the present invention, any simplification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A double-ended ball base surface grinder, comprising a base, characterized in that: An X-axis displacement mechanism is arranged on the base, and Y-axis displacement mechanisms are arranged on the bases on both sides of the X-axis displacement mechanism, the Y-axis displacement mechanism is perpendicular to the X-axis displacement mechanism, a workpiece clamping mechanism is arranged on the X-axis displacement mechanism, the workpiece clamping mechanism clamps the middle part of the workpiece, both ends of the workpiece are exposed to the outside, and can drive the workpiece to rotate, a mounting seat is arranged on the Y-axis displacement mechanism, a rotating platform is arranged on the mounting seat through a vertical rotating shaft, a first motor is arranged on the mounting seat to drive the rotating platform to rotate relative to the mounting seat, a grinding head mechanism is arranged on the rotating platform, and the horizontal heights of the grinding head mechanisms on the two rotating platforms are consistent.

2. A double-end ball base surface grinder according to claim 1, characterized in that: The structure of the workpiece clamping mechanism is as follows: it includes a fixed seat arranged on the X-axis displacement mechanism, a fixed pressure wheel is rotatably arranged on the fixed seat, a swing frame is arranged on the fixed seat above the fixed pressure wheel through a pin shaft, and the middle part of the swing frame is rotatably connected between the fixed seat, and a movable pressure wheel is rotatably arranged on the swing frame just above the fixed pressure wheel. A pushing cylinder is arranged vertically downward on the fixed seat above the swing frame relative to the other end of the movable pressure wheel, and the telescopic end of the pushing cylinder abuts against the swing frame, and a tension spring is arranged on the fixed seat on the side of the pushing cylinder, and the lower end of the tension spring is connected to the swing frame; a clamping cylinder is arranged on the fixed seat on one side between the fixed pressure wheel and the movable pressure wheel, and a top block is arranged on the telescopic end of the clamping cylinder, and the top block faces the position between the fixed pressure wheel and the movable pressure wheel, and the fixed pressure wheel, the movable pressure wheel and the top block are used to clamp the workpiece; a motor is arranged on the fixed seat, and the motor is transmission-connected to the fixed pressure wheel and the movable pressure wheel, and the fixed pressure wheel and the movable pressure wheel rotate in opposite directions.

3. A double-headed ball base surface grinder according to claim 2, characterized in that: A positioning block is arranged on a fixing seat on one side of the fixed pressure wheel and the movable pressure wheel, and the positioning block extends to a range between the fixed pressure wheel, the movable pressure wheel and the top block for clamping the workpiece.

4. A double-end ball base surface grinder according to claim 3, characterized in that: A measuring head is arranged on a fixed seat on the other side of the positioning block, and the structure of the measuring head is as follows: a mounting plate is arranged on the fixed seat, a sliding cylinder is arranged on the mounting plate, the sliding direction of the sliding cylinder is parallel to the axial direction of the workpiece, a telescopic cylinder is arranged on the slider of the sliding cylinder, a connecting seat is arranged at the end of the telescopic cylinder, a probe is arranged on the connecting seat, and the probe extends to the end of the workpiece.

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