Bearing bush mold positioning device

Abstract

The utility model provides a bearing bush mould positioning device, which comprises a turntable mechanism and a positioning and pressing mechanism, the turntable mechanism comprises a mould turntable and a rotary driving unit, and at least one inwards sunken mould station is arranged on the mould turntable along the circumferential direction of the mould turntable and is used for loading a bearing bush mould; a die sleeve matched with the bearing bush die is arranged at the opening end of the die station, and a trapezoidal convex part is arranged on the outer side of the die sleeve; and the positioning and pressing mechanism is arranged on one side of the mold rotating disc, the positioning and pressing mechanism comprises a pressing plate and a pushing driving unit, the front end face of the pressing plate is provided with a first diagonal plane and a second diagonal plane, the first diagonal plane and the second diagonal plane are matched with the bevel edges of the trapezoidal protruding parts, and the pressing plate is used for applying pressure to the mold sleeve in the radial direction of the mold rotating disc. According to the positioning and pressing mechanism, the problems that positioning is inaccurate, clamping force is small and deviation correction is difficult to carry out on the die rotating disc due to matching between the positioning and pressing mechanism and the die sleeve of an existing bearing bush die can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing bush processing, and more specifically relates to a bearing bush mold positioning device. Background Art

[0002] The bearing is the part where the sliding bearing and the journal contact, and it is in the shape of a semi-cylindrical surface. In the width processing of the bearing, the bearing needs to be loaded into the station in the mold turntable through the width mold, and then the cutting devices arranged at the two end faces of the mold turntable cut and chamfer the excess part of the bearing that exceeds the width mold to make the bearing reach the target width. The width mold is a split mold, consisting of two single semi-cylindrical molds that match the bearing. In order to ensure the stability of the mold during cutting, it is necessary to set a mold sleeve that matches the width mold on the other side of the mold station, and apply pressure to the mold sleeve through the positioning and clamping mechanism to prevent the mold from jumping during the bearing cutting process.

[0003] The outer surface of the existing mold sleeve is arc-shaped, and the clamping part of the pressure plate of the positioning and clamping mechanism is also arc-shaped to match the mold sleeve. The arc-shaped clamping part has a poor clamping force on the mold sleeve, and inaccurate positioning is prone to occur during the positioning and clamping process. When the mold turntable offsets after rotation, the arc-shaped clamping part makes it difficult to correct the mold turntable. Utility Model Content

[0004] The utility model aims to solve the problems of inaccurate positioning, small clamping force and difficulty in correcting deviation of the mold turntable in the existing cooperation between the positioning and clamping mechanism of the bearing mold and the mold sleeve.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a bearing mold positioning device, including a turntable mechanism and a positioning and pressing mechanism;

[0006] The turntable mechanism comprises a mold turntable and a rotation drive unit, wherein the mold turntable is provided with at least one inwardly recessed mold station along its circumference for loading a bearing mold; a mold sleeve matching the bearing mold is disposed at an open end of the mold station, and a trapezoidal protrusion is provided on the outer side of the mold sleeve;

[0007] The positioning and clamping mechanism is arranged on one side of the mold turntable, and the positioning and clamping includes a pressure plate and a propulsion drive unit. The front end face of the pressure plate is provided with a first chamfered surface and a second chamfered surface matching the hypotenuse of the trapezoidal protrusion, which is used to apply pressure to the mold sleeve along the radial direction of the mold turntable.

[0008] Optionally, eight mold stations are provided on the mold turntable at equal intervals along its circumference.

[0009] Optionally, a driving connection port is provided in the middle of the mold turntable, and through holes corresponding to the mold stations are provided on the outer side of the driving connection port.

[0010] Optionally, the driving end of the rotary driving unit is inserted into the driving connection port and connected to the mold turntable via a shaft cover.

[0011] Optionally, the mold sleeve is detachably connected to the mold station;

[0012] The mold station is divided into a mold sleeve clamping portion and a first mold clamping groove in sequence along the outer circumference of the mold turntable toward the concave direction thereof, and the mold sleeve clamping portion includes first docking portions respectively arranged at both ends of the first mold clamping groove, and clamping blocks respectively extending from the first docking portions to the outer circumference of the mold turntable;

[0013] A second mold slot matching the other side of the bearing mold is formed on the inner side of the mold sleeve, and second docking portions matching the first docking portions are respectively extended outward at both ends of the second mold slot, and a clamping slot matching the clamping block is respectively formed at both ends of the mold sleeve.

[0014] Optionally, a limit induction ring is provided on the first docking portion.

[0015] Optionally, the propulsion drive unit is arranged at the rear end of the pressure plate, and the propulsion drive end element includes a driving cylinder, a guide sleeve and a fixed base, the driving cylinder and the guide sleeve are arranged on the fixed base, and the driving end of the driving cylinder passes through the guide sleeve and is connected to the pressure plate.

[0016] The beneficial effects of the utility model are:

[0017] The bearing shell mold positioning device of the utility model provides a trapezoidal protrusion on the outer side of the mold sleeve, and provides a first beveled surface and a second beveled surface matching the hypotenuse of the trapezoidal protrusion on the pressure plate of the positioning and clamping mechanism, so that the first beveled surface and the second beveled surface matching the hypotenuse of the trapezoidal protrusion form a trapezoidal clamping portion matching the trapezoidal protrusion with the front end surface of the pressure plate. When the positioning and clamping mechanism applies pressure to the mold sleeve, the trapezoidal clamping portion is engaged with the trapezoidal protrusion. Compared with the existing arc-shaped clamping portion, the pressure effect and the guiding and correcting ability of the positioning and clamping mechanism are effectively enhanced. When there is a slight offset in the positioning of the mold turntable after rotation, the pressure plate can realize forced correction of the mold turntable during the engagement with the mold sleeve, thereby ensuring the positioning and clamping effect of the bearing shell mold.

[0018] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention may be better understood by referring to the following description in conjunction with the accompanying drawings, in which the same or similar reference numerals are used throughout the drawings to represent the same or similar components.

[0020] Figure 1 A schematic structural diagram of a turntable mechanism according to an embodiment of the utility model is shown;

[0021] Figure 2 A schematic structural diagram of a positioning and pressing mechanism according to an embodiment of the utility model is shown;

[0022] Figure 3 A schematic structural diagram of a mold turntable according to an embodiment of the utility model is shown;

[0023] Figure 4 A schematic diagram showing the relative position relationship between the mold turntable and the mold sleeve according to an embodiment of the utility model is shown. DETAILED DESCRIPTION

[0024] In order to enable technicians in the relevant technical field to more fully understand the technical solution of the utility model, the exemplary implementation of the utility model will be described in more comprehensive and detailed in conjunction with the accompanying drawings below. Obviously, the one or more implementations of the utility model described below are only one or more of the specific ways to implement the technical solution of the utility model, and are not exhaustive. It should be understood that other ways belonging to a general utility model concept can be used to implement the technical solution of the utility model, and should not be limited by the exemplary description of the implementation. Based on one or more implementations of the utility model, all other implementations obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the utility model.

[0025] Example: Figure 1 FIG. 1 shows a schematic structural diagram of a turntable mechanism according to an embodiment of the utility model. Figure 2 A structural schematic diagram of a positioning and pressing mechanism according to an embodiment of the utility model is shown.

[0026] Reference Figure 1 and Figure 2 The bearing mold positioning device of the embodiment of the utility model comprises a turntable mechanism 100 and a positioning and clamping mechanism 200. The turntable mechanism 100 comprises a mold turntable 110 and a rotation driving unit 120. The mold turntable 110 is provided with at least one inwardly recessed mold station 111 along its circumference for loading a bearing mold 400. The open end of the mold station 111 is provided with a mold sleeve 300 matching the bearing mold 400. The outer side of the mold sleeve 300 has a trapezoidal protrusion 310.

[0027] The positioning and clamping mechanism 200 is arranged on one side of the mold turntable 110. The positioning and clamping includes a pressure plate 210 and a propulsion drive unit 220. The front end face of the pressure plate 210 is provided with a first beveled surface 211 and a second beveled surface 212 matching the hypotenuse of the trapezoidal protrusion 310, which are used to apply pressure to the mold sleeve 300 along the radial direction of the mold turntable 110.

[0028] Specifically, in the embodiment of the utility model, the bearing mold 400 is a split mold, which is assembled from two semi-cylindrical molds that match the bearing. The mold station 111 matches the semi-cylindrical mold on one side, and the other side applies pressure to it through the mold sleeve 300 and the positioning clamping mechanism, thereby locking the bearing mold 400, so that the bearing mold 400 remains stable during the cutting process to prevent jumping.

[0029] Specifically, in the embodiment of the utility model, the first beveled surface 211 and the second beveled surface 212 are relatively arranged on the upper and lower sides of the front end surface of the pressure plate 210. The first beveled surface 211, the second beveled surface 212 and the front end surface of the pressure plate 210 constitute a trapezoidal clamping portion matching the trapezoidal protrusion 310. When the positioning and clamping mechanism 200 applies pressure to the mold sleeve 300, the trapezoidal clamping portion is engaged with the trapezoidal protrusion 310. Compared with the existing arc-shaped clamping portion, the pressure effect and the guiding and correcting ability of the positioning and clamping mechanism 200 are effectively enhanced. When there is a slight offset in the positioning of the mold turntable 110 after rotation, the pressure plate 210 can realize forced correction of the mold turntable 110 during the engagement with the mold sleeve 300, thereby ensuring the positioning and clamping effect of the bearing mold 400.

[0030] Further, Figure 3 The structure diagram of the mold turntable according to the embodiment of the utility model is shown. Figure 4 A schematic diagram showing the relative position relationship between the mold turntable and the mold sleeve according to an embodiment of the utility model is shown.

[0031] Reference Figure 3 and Figure 4 In the embodiment of the utility model, eight mold stations 111 are provided on the mold turntable 110 at equal intervals along its circumference.

[0032] Specifically, in the embodiment of the utility model, the angle between every two adjacent mold stations 111 is 45 degrees. Compared with the existing mold turntable 110 which can only process the same set of bearings of the same size at one time, the mold turntable 110 of the utility model can simultaneously process two sets of bearings of different sizes, reducing the disassembly and installation steps and improving the processing efficiency.

[0033] Specifically, during the bearing width processing, the single rotation angle of the turntable mold set by the turntable mechanism 100 is 90 degrees, that is, after the cutting device completes the cutting work of one station, the mold turntable 110 rotates 90 degrees to the corresponding station to perform the next bearing width cutting operation. The existing mold turntable corresponds to this rotation angle. Four mold stations are evenly spaced on the mold turntable, and the angle between every two mold stations is 90 degrees. Therefore, after the cutting length is preset, only one set of bearing molds with the same cutting length can be set on the existing mold turntable. If bearings of different sizes are to be processed, the bearing molds on the stations need to be replaced again, which is cumbersome. The mold turntable 110 of the utility model embodiment can simultaneously install two sets of four bearing molds 400 of different sizes, and bearing molds 400 of different sizes are installed on every two adjacent mold stations 111. After completing the cutting of one set of bearings, the mold turntable 110 is manually rotated 45 degrees, and then the other set of bearings can be cut without repeated loading and unloading.

[0034] Furthermore, in the embodiment of the utility model, a driving connection port 112 is opened in the middle of the mold turntable 110 , and through holes 113 corresponding to the mold stations 111 are opened on the outer side of the driving connection port 112 .

[0035] Specifically, in the embodiment of the utility model, the number of through holes 113 is the same as the mold station 111, and the through holes 113 extend from the center of the mold turntable 110 toward the corresponding mold station 111. By arranging the through holes 113 on the mold turntable 110, the anti-torsion strength of the mold turntable 110 is enhanced, thereby preventing the mold turntable 110 from being deformed during use.

[0036] Furthermore, in the embodiment of the utility model, the driving end of the rotation driving unit 120 is inserted into the driving connection port 112 and connected to the mold turntable 110 through the shaft cover 121 .

[0037] Specifically, in the embodiment of the present invention, the rotation driving unit 120 is a servo motor, and the servo motor is configured to control the mold turntable 110 to rotate 90 degrees.

[0038] Furthermore, in the embodiment of the present utility model, the mold sleeve 300 is detachably connected to the mold station 111;

[0039] The mold station 111 is divided into a mold sleeve 300 clamping portion and a first mold clamping groove 114 in sequence along the outer circumference of the mold turntable 110 toward the concave direction thereof. The mold sleeve 300 clamping portion includes first docking portions 115 respectively arranged at both ends of the first mold clamping groove 114, and clamping blocks 116 respectively extending from the first docking portions 115 to the outer circumference of the mold turntable 110;

[0040] A second mold slot 320 matching the other side of the bearing mold 400 is formed on the inner side of the mold sleeve 300, and second docking portions 330 matching the first docking portion 115 are respectively extended outward at both ends of the second mold slot 320, and a clamping slot 340 matching the clamping block 116 is respectively formed at both ends of the mold sleeve 300.

[0041] Furthermore, in the embodiment of the present invention, a limit sensing ring 117 is disposed on the first docking portion 115 .

[0042] Specifically, in the embodiment of the utility model, a limit sensing ring 117 is provided to limit the position of the mold sleeve 300 during its installation.

[0043] Furthermore, in the embodiment of the utility model, the propulsion drive unit 220 is arranged at the rear end of the pressure plate 210, and the propulsion drive end element includes a driving cylinder 221, a guide sleeve 222 and a fixed base 223. The driving cylinder 221 and the guide sleeve 222 are arranged on the fixed base 223, and the driving end of the driving cylinder 221 passes through the guide sleeve 222 and is connected to the pressure plate 210.

[0044] Specifically, in the embodiment of the utility model, the guide sleeve 222 is fixed on the fixed base 223. The guide sleeve 222 is provided to ensure the stability of the propulsion drive unit 220 and prevent shaking.

[0045] Although one or more embodiments of the utility model are described above, it should be known to those skilled in the art that the utility model can be implemented in any other form without departing from its subject matter and scope. Therefore, the embodiments described above are illustrative rather than restrictive, and many modifications and substitutions are obvious to those skilled in the art without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims

1. A bearing mold positioning device, characterized in that: The invention comprises a turntable mechanism and a positioning and pressing mechanism, wherein the turntable mechanism comprises a mold turntable and a rotation driving unit, wherein the mold turntable is provided with at least one inwardly recessed mold station along its circumference for loading a bearing mold; the open end of the mold station is provided with a mold sleeve matching the bearing mold, and the outer side of the mold sleeve has a trapezoidal protrusion; The positioning and clamping mechanism is arranged on one side of the mold turntable, and the positioning and clamping includes a pressure plate and a propulsion drive unit. The front end face of the pressure plate is provided with a first chamfered surface and a second chamfered surface matching the hypotenuse of the trapezoidal protrusion, which is used to apply pressure to the mold sleeve along the radial direction of the mold turntable.

2. The bearing mold positioning device according to claim 1, characterized in that: The mold turntable is provided with eight mold stations at equal intervals along its circumference.

3. The bearing mold positioning device according to claim 2, characterized in that: A driving connection port is provided in the middle of the mold turntable, and through holes corresponding to the mold stations are provided on the outer side of the driving connection port.

4. The bearing mold positioning device according to claim 1, characterized in that: The driving end of the rotary driving unit is inserted into the driving connection port and connected to the mold turntable through a shaft cover.

5. The bearing mold positioning device according to claim 1, characterized in that: The mold sleeve is detachably connected to the mold station; The mold station is divided into a mold sleeve clamping portion and a first mold clamping groove in sequence along the outer circumference of the mold turntable toward the concave direction thereof, and the mold sleeve clamping portion includes first docking portions respectively arranged at both ends of the first mold clamping groove, and clamping blocks respectively extending from the first docking portions to the outer circumference of the mold turntable; A second mold slot matching the other side of the bearing mold is formed on the inner side of the mold sleeve, and second docking portions matching the first docking portions are respectively extended outward at both ends of the second mold slot, and a clamping slot matching the clamping block is respectively formed at both ends of the mold sleeve.

6. The bearing mold positioning device according to claim 5, characterized in that: A limit induction ring is arranged on the first docking portion.

7. The bearing mold positioning device according to claim 1, characterized in that: The propulsion drive unit is arranged at the rear end of the pressure plate, and the propulsion drive unit includes a driving cylinder, a guide sleeve and a fixed base. The driving cylinder and the guide sleeve are arranged on the fixed base, and the driving end of the driving cylinder passes through the guide sleeve and is connected to the pressure plate.

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