Double-eccentric arc surface machining and polishing device for contact type backstop

Abstract

The utility model discloses a double eccentric arc surface processing and polishing device of a contact type backstop, which relates to the technical field of processing and polishing devices and comprises a working base station, two longitudinal positioning plates are mounted on the working base station along the length direction of the working base station, two transverse sliding frames are arranged on the working base station along the width direction of the working base station, and polishing rolling shafts are arranged in the transverse sliding frames. Workpiece bodies are arranged between the two longitudinal positioning plates, the length of the polishing rolling shaft is matched with the length of the workpiece bodies, and eccentric blocks are arranged between the longitudinal positioning plates and the workpiece bodies. Aiming at the grinding process of the special-shaped wedge block in the contact type backstop, the whole process only comprises a single rotating process, the rotating center of the special-shaped wedge block takes one circle center point in the special-shaped wedge block as a rotating point, and then the two groups of grinding rolling shafts are matched with the rotating process in a motion form; the method specifically comprises a static linear motion mode and a dynamic linear motion mode, and aims to simplify the polishing process and shorten the consumed time in the single polishing process.

Description

Technical Field

[0001] The utility model relates to the technical field of processing and grinding devices, in particular to a double eccentric arc surface processing and grinding device for a contact type backstop. Background Art

[0002] The operating principle of the contact type backstop mainly relies on the multiple special-shaped wedges inside. By switching the rotation direction, the multiple special-shaped wedges form two action forms: light contact or clamping, thereby bearing the backstop torque. The essence of the contact type backstop is a mechanical device that completes power transmission through contact surfaces. For this reason, its product processing accuracy requirements are higher, especially for the key structure of the special-shaped wedge.

[0003] There is a hyperbolic surface on the traditional special-shaped wedge structure, which is not concentrically arranged. Therefore, the double eccentric fixture is mainly used in the grinding process. The method is: the center point of the workpiece is used as the processing clamping point, and then the grinding action is performed according to the process requirements such as the center point position on the corresponding curved surface and the processing size. During the grinding action, two independent rotation actions are required according to the center points of the two curved surfaces, which increases the movement difficulty in the grinding action and increases the single processing time of the workpiece.

[0004] This application proposes a solution to this problem. Utility Model Content

[0005] The utility model aims to provide a double eccentric arc surface processing and grinding device for a contact type backstop, which is used to solve the problem that the prior art requires two independent rotation actions on a product, which increases the movement difficulty in the grinding action and the single processing time of the workpiece.

[0006] The purpose of the utility model can be achieved by the following technical solutions: a double eccentric arc surface processing and grinding device for a contact type backstop, comprising a working base, the working base is provided with two longitudinal positioning plates along its length direction, and the working base is provided with two transverse slides along its width direction, a grinding roller is provided in the transverse slide, a workpiece body is provided between the two longitudinal positioning plates, and the length of the grinding roller matches the workpiece body;

[0007] An eccentric block is arranged between the longitudinal positioning plate and the workpiece body, a first center point and a second center point are arranged in the eccentric block, and the eccentric block is rotatably connected to the longitudinal positioning plate through the first center point, a clamping head is installed on the second center point of the eccentric block, and the workpiece body is arranged at the middle position of the two eccentric blocks through the clamping head.

[0008] It is further configured that: a first motor is installed on one of the longitudinal positioning plates, and an output shaft of the first motor is fixedly connected to a first center point of one of the eccentric blocks.

[0009] It is further configured as follows: a second motor is installed at one end of the transverse slide, and the grinding roller is rotatably connected to the transverse slide via the second motor.

[0010] It is further configured as follows: a linear motor is installed in the working base, and the transverse slide is slidably connected to the working base along the width direction of the working base through the linear motor.

[0011] It is further configured as follows: a plurality of displacement sensors are installed on the working base directly below the workpiece body, a crank arm is installed at the output end of the displacement sensor, and a rubber roller is rotatably installed on the top end of the crank arm.

[0012] It is further configured that: the crank arm is inclined along the vertical direction, and the inclination direction of the crank arm matches the rotation direction of the workpiece body.

[0013] The utility model has the following beneficial effects:

[0014] 1. The utility model is based on the grinding process of the special-shaped wedge in the contact backstop, and mainly adopts the grinding method of full surrounding of the grinding roller, which is specifically manifested as follows: the workpiece body maintains a single rotation action, and the grinding rollers are located on both sides of the workpiece body, with one grinding roller as a fixed position and the other grinding roller as a dynamic position, which is specifically manifested as follows: the other grinding roller cooperates with the outer curved surface of the workpiece body to perform dynamic linear rotation, so as to ensure that the two grinding rollers can stably contact the hyperbolic position of the workpiece body during the rotation process of the workpiece body, and the grinding is completed synchronously;

[0015] 2. In combination with the above content, it needs to be further explained that: in the rotation action of the workpiece body, the relative center point of the workpiece body is not used as the rotation point, but the center point of one of the curved surfaces in the workpiece body is used as the rotation point, and its rotation point is coaxial and collinear with one of the center points on the eccentric block. In conjunction with the rotation process of the workpiece body, one of the grinding rollers is ensured to be in a relatively stable state, while the other grinding roller maintains dynamic linear motion. The purpose is to simplify the movement mode of the overall grinding process and shorten the total time consumed in the grinding process while maintaining the normal grinding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a double eccentric arc surface processing and grinding device of a contact type backstop proposed by the utility model;

[0018] Figure 2 It is a structural schematic diagram of a working base in a double eccentric arc surface processing and grinding device of a contact type backstop proposed by the utility model;

[0019] Figure 3 It is a side sectional view of a working base in a double eccentric arc surface processing and grinding device of a contact type backstop proposed by the utility model;

[0020] Figure 4 The utility model provides a double eccentric arc surface processing and grinding device for a contact type backstop. Figure 1 A partial cutaway view of .

[0021] In the figure: 1. working base; 2. horizontal slide; 3. grinding roller; 4. first motor; 5. longitudinal positioning plate; 6. second motor; 7. eccentric block; 8. clamping head; 9. displacement sensor; 10. crank arm; 11. rubber roller; 12. linear motor. DETAILED DESCRIPTION

[0022] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] For the grinding process of the special-shaped wedge in the contact backstop, the center point of the workpiece is used as the processing clamping point, and then the grinding action is performed according to the center point position on the corresponding curved surface, the processing size and other process requirements. In the grinding action, two independent rotation actions need to be performed according to the center points of the two curved surfaces, which increases the movement difficulty in the grinding action and increases the single processing time of the workpiece. The following technical solutions are proposed:

[0025] Reference Figures 1 to 4In this embodiment, a double eccentric arc surface processing and grinding device of a contact type backstop includes a working base 1, two longitudinal positioning plates 5 are installed on the working base 1 along its length direction, and two transverse slides 2 are arranged on the working base 1 along its width direction, and a grinding roller 3 is arranged in the transverse slide 2, and a workpiece body is arranged between the two longitudinal positioning plates 5, and the length of the grinding roller 3 matches the workpiece body;

[0026] An eccentric block 7 is arranged between the longitudinal positioning plate 5 and the workpiece body. A first center point and a second center point are arranged in the eccentric block 7. The eccentric block 7 is rotatably connected to the longitudinal positioning plate 5 through the first center point. A clamping head 8 is installed on the second center point of the eccentric block 7. The workpiece body is arranged at the middle position of the two eccentric blocks 7 through the clamping head 8.

[0027] A first motor 4 is installed on one of the longitudinal positioning plates 5, and the output shaft of the first motor 4 is fixedly connected to the first center point of one of the eccentric blocks 7. A second motor 6 is installed at one end of the transverse slide 2, and the grinding roller 3 is rotatably connected to the transverse slide 2 through the second motor 6. A linear motor 12 is installed in the working base 1, and the transverse slide 2 is slidably connected to the working base 1 along the width direction of the working base 1 through the linear motor 12.

[0028] Basic principle: Place the workpiece body to be processed in the middle of the two longitudinal positioning plates 5, select the corresponding clamping head 8 according to the shape of the workpiece body, fix the workpiece body on the eccentric block 7 through the clamping head 8, and drive the workpiece body to rotate at a constant speed by the first motor 4, and the grinding roller 3 therein will also rotate through the second motor 6, so as to complete the grinding process of the workpiece body by using the grinding roller 3, and the specific process will not be repeated;

[0029] It should be noted that: the rotation point of the workpiece body is not the center point on both sides thereof, but the eccentric block 7 is used as a transfer structure. For example: the eccentric block 7 is respectively set with a first center point and a second center point, which are respectively used as the center points of two curved surfaces in the workpiece body. For this, the first center point and the second center point need to be set according to the diameters of the two curved surfaces. The process is: if the diameter of the curved surface corresponding to the first center point is greater than the diameter of the curved surface corresponding to the second center point, the first center point is used as the rotation point of the workpiece body. It can be understood that under the action of the first motor 4, the workpiece body rotates with the first center point, and a circular movement trajectory of the curved surface corresponding to the first center point is formed, but the rotation process of the curved surface corresponding to the second center point does not present a circular movement trajectory.

[0030] It should be noted that: in order to cooperate with the two curved surfaces in the workpiece body, one of the lateral slides 2 maintains a stable state after being directional moved, and its purpose is to cooperate with the large diameter curved surface corresponding to the first center point in the workpiece body. When the workpiece body keeps rotating, the grinding roller 3 that maintains a stable state always contacts the large diameter curved surface in the workpiece body, but does not contact the small diameter curved surface corresponding to the second center point.

[0031] For this purpose, it is necessary to ensure that another transverse slide 2 is directed reciprocatingly moved by the linear motor 12. The purpose is to ensure that the grinding roller 3 in this position contacts the small diameter curved surface, and the grinding roller 3 in this position also needs to avoid the large diameter curved surface, so the transverse slide 2 in this position moves in two directions: approaching or moving away.

[0032] Embodiment 2

[0033] During the operation of Example 1, the following auxiliary schemes are added:

[0034] A plurality of displacement sensors 9 are installed on the working base 1 directly below the workpiece body, a crank arm 10 is installed at the output end of the displacement sensor 9, a rubber roller 11 is rotatably installed at the top of the crank arm 10, the crank arm 10 is inclined along the vertical direction, and the inclination direction of the crank arm 10 matches the rotation direction of the workpiece body.

[0035] Solution description: During the uniform rotation of the workpiece body, the large-diameter curved surface and the small-diameter curved surface thereof will contact the rubber roller 11. When the rotation of the workpiece body is not interfered, the crank arm 10 thereof moves up and down through the contact state between the rubber roller 11 and the workpiece body, so that the displacement sensor 9 thereof detects the displacement value, and further converts the displacement value into the grinding data on the corresponding workpiece body through conversion;

[0036] It should also be noted that: in accordance with the rotation direction of the workpiece body, refer to Figure 3 It is explained that if the rotation direction of the workpiece body is counterclockwise, then the corresponding crank arm 10 is tilted to the right along the vertical direction, the purpose of which is to avoid direct interference with the rotation process of the workpiece body.

[0037] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A double eccentric arc surface processing and grinding device for a contact type backstop, comprising a working base (1), characterized in that: The work base (1) is provided with two longitudinal positioning plates (5) along its length direction, and the work base (1) is provided with two transverse slides (2) along its width direction, a grinding roller (3) is provided in the transverse slide (2), a workpiece body is provided between the two longitudinal positioning plates (5), and the length of the grinding roller (3) matches that of the workpiece body; An eccentric block (7) is arranged between the longitudinal positioning plate (5) and the workpiece body, a first center point and a second center point are arranged in the eccentric block (7), and the eccentric block (7) is rotatably connected to the longitudinal positioning plate (5) via the first center point, a clamping head (8) is installed on the second center point of the eccentric block (7), and the workpiece body is arranged at a middle position between the two eccentric blocks (7) via the clamping head (8).

2. The double eccentric arc surface processing and grinding device of a contact type backstop according to claim 1 is characterized in that: A first motor (4) is mounted on one of the longitudinal positioning plates (5), and an output shaft of the first motor (4) is fixedly connected to a first center point of one of the eccentric blocks (7).

3. The double eccentric arc surface processing and grinding device of a contact type backstop according to claim 1 is characterized in that: A second motor (6) is installed at one end of the transverse slide (2), and the grinding roller (3) is rotatably connected to the transverse slide (2) via the second motor (6).

4. The double eccentric arc surface processing and grinding device of a contact type backstop according to claim 1 is characterized in that: A linear motor (12) is installed in the working base (1), and the transverse slide (2) is slidably connected to the working base (1) along the width direction of the working base (1) via the linear motor (12).

5. The double eccentric arc surface processing and grinding device of a contact type backstop according to claim 1 is characterized in that: The working platform (1) is provided with a plurality of displacement sensors (9) at a position directly below the workpiece body, a crank arm (10) is provided at the output end of the displacement sensor (9), and a rubber roller (11) is rotatably provided at the top end of the crank arm (10).

6. The double eccentric arc surface processing and grinding device of a contact type backstop according to claim 5, characterized in that: The crank arm (10) is inclined along the vertical direction, and the inclination direction of the crank arm (10) matches the rotation direction of the workpiece body.

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