Horizontal lathe center frame

Abstract

The utility model relates to a horizontal lathe center frame which comprises a center frame upper body and a center frame lower body, the center frame upper body is arranged at the upper end of the center frame lower body, and one end of the center frame upper body is rotatably connected with one end of the center frame lower body through a pin shaft. The other end part of the center frame upper body is detachably connected with the other end part of the center frame lower body through a swing bolt; penetrating holes are formed in the upper end of the center frame upper body and the two ends of the center frame lower body, a guide cylinder is arranged in each penetrating hole, the upper end of each guide cylinder is connected with a steel pipe sleeve, and a gland is arranged at the upper end of each steel pipe sleeve; an ejector rod is arranged in each guide cylinder, an adjusting lead screw is arranged at the upper end of the gland, and the lower end of the adjusting lead screw downwards penetrates through the gland and extends into the steel pipe sleeve to be rotationally connected with the ejector rods. Compared with the prior art, the steel pipe sleeve is arranged at the upper end of the guide cylinder, so that the maximum outer circle of a workpiece can be supported and positioned to be 860 mm, the production requirement is met, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of lathe technology, and more specifically, to a horizontal lathe center rest. Background Technology

[0002] The center rest is mainly used on lathes as an auxiliary device to radially support rotating workpieces during machining. It is primarily used for machining longer workpieces and is installed between the chuck and the tool post. However, existing center rest technologies still have some problems. The maximum outer diameter of the workpiece supported and positioned by the center rest of a typical horizontal lathe is 750mm. With the development of production, existing specifications can no longer meet production needs, so it is necessary to solve this problem. Utility Model Content

[0003] The present invention aims to at least partially solve one of the aforementioned technical problems in the prior art. Therefore, one objective of the present invention is to provide a horizontal lathe center rest that meets production needs and reduces production costs.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A horizontal lathe center support, including a center support upper body and a center support lower body, wherein the center support upper body is placed on the upper end of the center support lower body, one end of the center support upper body is rotatably connected to one end of the center support lower body by a pin, and the other end of the center support upper body is detachably connected to the other end of the center support lower body by a hinge bolt.

[0005] The upper end of the upper body of the central frame and both ends of the lower body of the central frame are provided with through holes. Each through hole contains a guide cylinder, and the upper end of each guide cylinder is fixedly connected to a steel pipe sleeve. The upper end of the steel pipe sleeve is provided with a pressure cap, and the pressure cap is detachably connected to the steel pipe sleeve by a first bolt. Each guide cylinder contains a push rod, the lower end of which can extend downward out of the guide cylinder, and the upper end of which can extend upward into the steel pipe sleeve. The upper end of the pressure cap is provided with an adjusting screw, and the lower end of the adjusting screw passes downward through the pressure cap and extends into the steel pipe sleeve, where it is rotatably connected to the push rod.

[0006] The beneficial effects of this utility model are: by arranging a steel pipe sleeve at the upper end of the guide cylinder, the adjusting screw can drive the top rod to retract to the set position, which can support and position the workpiece with a maximum outer diameter of 860mm, thus meeting production needs and reducing production costs.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the top rod is provided with a vertically arranged inner cavity, and the lower end of the adjusting screw can be adjusted to extend into the inner cavity.

[0009] Furthermore, the end of the top rod near the pressure cap is provided with a threaded hole, and the adjusting screw extends into the inner cavity through the threaded hole, and the adjusting screw is threadedly connected to the top rod.

[0010] The beneficial effects of adopting the above-mentioned further solution are: the adjustment screw can drive the push rod to move efficiently during rotation, and can also improve the stability of the push rod after it moves into place.

[0011] Furthermore, the end of the push rod away from the pressure cap is provided with a threaded hole, and the push rod is detachably connected to a pressure wheel or a pressure head through the threaded hole.

[0012] The beneficial effects of adopting the above-mentioned further solution are: by detachably arranging clamping wheels or clamping heads at the ends of the three top rods, the service life of the main structure of the center frame is extended and maintenance costs are reduced.

[0013] Furthermore, the upper end of the upper body of the central frame and the lower end of the lower body of the central frame are provided with screw holes corresponding to the through holes, which communicate with the through holes and the guide cylinder. Each screw hole is provided with an adjusting rod, which can be inserted into the through hole and the guide cylinder through the screw hole to fix the top rod.

[0014] The beneficial effect of adopting the above-mentioned further solution is that by using the adjusting rod to fix the push rod, the stability of the push rod can be improved, and the machining accuracy of the workpiece can be improved. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a horizontal lathe center support according to Embodiment 1 of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the center support of a horizontal lathe according to Embodiment 2 of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the center support of a horizontal lathe according to Embodiment 3 of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the center support of a horizontal lathe according to Embodiment 4 of this utility model.

[0019] The attached diagram lists the components represented by each number as follows:

[0020] 1. Upper body of central frame, 2. Lower body of central frame, 3. Pin, 4. Hinged bolt, 5. Through hole, 6. Guide cylinder, 7. Steel pipe sleeve, 8. Pressure cap, 9. First bolt, 10. Top rod, 11. Adjusting screw, 12. Pressure wheel, 13. Pressure head, 14. Adjusting rod. Detailed Implementation

[0021] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0022] Example 1:

[0023] like Figure 1 As shown, a horizontal lathe center rest includes an upper center rest 1 and a lower center rest 2. The upper center rest 1 is placed on the upper end of the lower center rest 2. One end of the upper center rest 1 is rotatably connected to one end of the lower center rest 2 by a pin 3. The other end of the upper center rest 1 is detachably connected to the other end of the lower center rest 2 by a hinge bolt 4.

[0024] The upper end of the upper body 1 of the central frame and both ends of the lower body 2 of the central frame are provided with through holes 5. Each through hole 5 is provided with a guide cylinder 6. The upper end of each guide cylinder 6 is fixedly connected with a steel pipe sleeve 7. The upper end of the steel pipe sleeve 7 is provided with a pressure cap 8. The pressure cap 8 and the steel pipe sleeve 7 are detachably connected by a first bolt 9. Each guide cylinder 6 is provided with a top rod 10. The lower end of the top rod 10 can extend downward out of the guide cylinder 6, and the upper end of the top rod 10 can extend upward into the steel pipe sleeve 7. The upper end of the pressure cap 8 is provided with an adjusting screw 11. The lower end of the adjusting screw 11 passes downward through the pressure cap 8 and extends into the steel pipe sleeve 7, and is rotatably connected to the top rod 10.

[0025] The top rod 10 has a vertically arranged inner cavity, and the lower end of the adjusting screw 11 can be adjusted to extend into the inner cavity.

[0026] The top rod 10 has a threaded hole at its end near the pressure cap 8, and the adjusting screw 11 extends into the inner cavity through the threaded hole. The adjusting screw 11 is threadedly connected to the top rod 10.

[0027] In a specific application of this embodiment, when it is necessary to fix the workpiece, the adjusting screw 11 is rotated. During the rotation of the adjusting screw 11, the push rod 10 is driven to extend along the steel pipe sleeve 7 and the guide cylinder 6. The end of the push rod 10 is fixed to the center of the upper body 1 and the lower body 2 of the center frame. The three push rods 10 fix the workpiece from different directions, thereby improving the stability of the workpiece during the processing.

[0028] In this embodiment, by arranging a steel pipe sleeve 7 at the upper end of the guide cylinder 6, the adjusting screw 11 can drive the top rod 10 to retract to the set position, which can support and position the workpiece with a maximum outer diameter of 860mm, thus meeting production needs and reducing production costs.

[0029] Example 2:

[0030] like Figure 2 As shown, a horizontal lathe center rest includes an upper center rest 1 and a lower center rest 2. The upper center rest 1 is placed on the upper end of the lower center rest 2. One end of the upper center rest 1 is rotatably connected to one end of the lower center rest 2 by a pin 3. The other end of the upper center rest 1 is detachably connected to the other end of the lower center rest 2 by a hinge bolt 4.

[0031] The upper end of the upper body 1 of the central frame and both ends of the lower body 2 of the central frame are provided with through holes 5. Each through hole 5 is provided with a guide cylinder 6. The upper end of each guide cylinder 6 is fixedly connected with a steel pipe sleeve 7. The upper end of the steel pipe sleeve 7 is provided with a pressure cap 8. The pressure cap 8 and the steel pipe sleeve 7 are detachably connected by a first bolt 9. Each guide cylinder 6 is provided with a top rod 10. The lower end of the top rod 10 can extend downward out of the guide cylinder 6, and the upper end of the top rod 10 can extend upward into the steel pipe sleeve 7. The upper end of the pressure cap 8 is provided with an adjusting screw 11. The lower end of the adjusting screw 11 passes downward through the pressure cap 8 and extends into the steel pipe sleeve 7, and is rotatably connected to the top rod 10.

[0032] In the above embodiment, the top rod 10 is provided with a vertically arranged inner cavity, and the lower end of the adjusting screw 11 can be adjusted to extend into the inner cavity.

[0033] In the above embodiment, the end of the top rod 10 near the pressure cap 8 is provided with a threaded hole, and the adjusting screw 11 extends into the inner cavity through the threaded hole, and the adjusting screw 11 is threadedly connected to the top rod 10.

[0034] In the above embodiment, the end of the push rod 10 away from the pressure cover 8 is provided with a threaded hole, and the push rod 10 is detachably connected to the pressure wheel 12 through the threaded hole.

[0035] In a specific application of this embodiment, when it is necessary to fix the workpiece, the adjusting screw 11 is rotated. During the rotation of the adjusting screw 11, the push rod 10 is driven to extend along the steel pipe sleeve 7 and the guide cylinder 6. The end of the push rod 10 is fixed to the center of the upper body 1 and the lower body 2 of the center frame. The three push rods 10 drive the clamping wheel 12 to fix the workpiece from different directions, thereby improving the stability of the workpiece during the processing.

[0036] This embodiment effectively prevents the workpiece from seizing during turning by detachably arranging clamping rollers 12 at the ends of the three push rods 10. When the clamping rollers 12 are damaged, they can be replaced, thereby extending the service life of the main structure of the center frame and reducing maintenance costs.

[0037] Example 3:

[0038] like Figure 3 As shown, a horizontal lathe center rest includes an upper center rest 1 and a lower center rest 2. The upper center rest 1 is placed on the upper end of the lower center rest 2. One end of the upper center rest 1 is rotatably connected to one end of the lower center rest 2 by a pin 3. The other end of the upper center rest 1 is detachably connected to the other end of the lower center rest 2 by a hinge bolt 4.

[0039] The upper end of the upper body 1 of the central frame and both ends of the lower body 2 of the central frame are provided with through holes 5. Each through hole 5 is provided with a guide cylinder 6. The upper end of each guide cylinder 6 is fixedly connected with a steel pipe sleeve 7. The upper end of the steel pipe sleeve 7 is provided with a pressure cap 8. The pressure cap 8 and the steel pipe sleeve 7 are detachably connected by a first bolt 9. Each guide cylinder 6 is provided with a top rod 10. The lower end of the top rod 10 can extend downward out of the guide cylinder 6, and the upper end of the top rod 10 can extend upward into the steel pipe sleeve 7. The upper end of the pressure cap 8 is provided with an adjusting screw 11. The lower end of the adjusting screw 11 passes downward through the pressure cap 8 and extends into the steel pipe sleeve 7, and is rotatably connected to the top rod 10.

[0040] In the above embodiment, the top rod 10 is provided with a vertically arranged inner cavity, and the lower end of the adjusting screw 11 can be adjusted to extend into the inner cavity.

[0041] In the above embodiment, the end of the top rod 10 near the pressure cap 8 is provided with a threaded hole, and the adjusting screw 11 extends into the inner cavity through the threaded hole, and the adjusting screw 11 is threadedly connected to the top rod 10.

[0042] In the above embodiment, the end of the push rod 10 away from the pressure cover 8 is provided with a threaded hole, and the push rod 10 is detachably connected to the pressure head 13 through the threaded hole.

[0043] In a specific application of this embodiment, when it is necessary to fix the workpiece, the adjusting screw 11 is rotated. During the rotation of the adjusting screw 11, the push rod 10 is driven to extend along the steel pipe sleeve 7 and the guide cylinder 6. The end of the push rod 10 is fixed to the center of the upper body 1 and the lower body 2 of the center frame. The three push rods 10 drive the clamping head 13 to fix the workpiece from different directions, thereby improving the stability of the workpiece during the processing.

[0044] This embodiment improves and extends the service life of the main structure of the central frame by detachably arranging the clamping heads 13 at the ends of the three top rods 10, thereby reducing maintenance costs.

[0045] Example 4:

[0046] like Figure 4As shown, a horizontal lathe center rest includes an upper center rest 1 and a lower center rest 2. The upper center rest 1 is placed on the upper end of the lower center rest 2. One end of the upper center rest 1 is rotatably connected to one end of the lower center rest 2 by a pin 3. The other end of the upper center rest 1 is detachably connected to the other end of the lower center rest 2 by a hinge bolt 4.

[0047] The upper end of the upper body 1 of the central frame and both ends of the lower body 2 of the central frame are provided with through holes 5. Each through hole 5 is provided with a guide cylinder 6. The upper end of each guide cylinder 6 is fixedly connected with a steel pipe sleeve 7. The upper end of the steel pipe sleeve 7 is provided with a pressure cap 8. The pressure cap 8 and the steel pipe sleeve 7 are detachably connected by a first bolt 9. Each guide cylinder 6 is provided with a top rod 10. The lower end of the top rod 10 can extend downward out of the guide cylinder 6, and the upper end of the top rod 10 can extend upward into the steel pipe sleeve 7. The upper end of the pressure cap 8 is provided with an adjusting screw 11. The lower end of the adjusting screw 11 passes downward through the pressure cap 8 and extends into the steel pipe sleeve 7, and is rotatably connected to the top rod 10.

[0048] In the above embodiment, the top rod 10 is provided with a vertically arranged inner cavity, and the lower end of the adjusting screw 11 can be adjusted to extend into the inner cavity.

[0049] In the above embodiment, the end of the top rod 10 near the pressure cap 8 is provided with a threaded hole, and the adjusting screw 11 extends into the inner cavity through the threaded hole, and the adjusting screw 11 is threadedly connected to the top rod 10.

[0050] In the above embodiment, the upper end of the central frame 1 and the lower end of the central frame 2 are provided with screw holes corresponding to the through holes 5 on the side walls. Each screw hole is provided with an adjusting rod 14, which can be inserted into the through holes 5 and the guide cylinder 6 to fix the top rod 10.

[0051] In a specific application of this embodiment, when it is necessary to fix the workpiece, the adjusting screw 11 is rotated. During the rotation of the adjusting screw 11, the push rod 10 is driven to extend along the steel pipe sleeve 7 and the guide cylinder 6. The end of the push rod 10 is fixed to the center of the upper body 1 and the lower body 2 of the center frame. The three push rods 10 fix the workpiece from different directions, which improves the stability of the workpiece during the processing. After the three push rods 10 fix the workpiece, the adjusting rod 14 is rotated to fix the push rod 10, which improves the stability of the push rod 10 when fixing the workpiece.

[0052] In this embodiment, after prolonged use, the push rod 10 becomes slightly loose under stress, affecting the machining accuracy of the workpiece. By using the adjusting rod 14 to fix the push rod 10, the stability of the push rod 10 can be improved, thereby improving the machining accuracy of the workpiece.

[0053] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A horizontal lathe center rest, characterized in that: It includes a central frame upper body (1) and a central frame lower body (2). The central frame upper body (1) is placed on the upper end of the central frame lower body (2). One end of the central frame upper body (1) is rotatably connected to one end of the central frame lower body (2) by a pin (3). The other end of the central frame upper body (1) is detachably connected to the other end of the central frame lower body (2) by a hinge bolt (4). The upper end of the upper body (1) of the central frame and both ends of the lower body (2) of the central frame are provided with through holes (5). Each through hole (5) is provided with a guide cylinder (6). Each guide cylinder (6) is fixedly connected to a steel pipe sleeve (7). The upper end of the steel pipe sleeve (7) is provided with a pressure cap (8). The pressure cap (8) and the steel pipe sleeve (7) are detachably connected by a first bolt (9). Each guide cylinder (6) is provided with a top rod (10). The lower end of the top rod (10) can extend downward out of the guide cylinder (6). The upper end of the top rod (10) can extend upward into the steel pipe sleeve (7). The upper end of the pressure cap (8) is provided with an adjusting screw (11). The lower end of the adjusting screw (11) passes downward through the pressure cap (8) and extends into the steel pipe sleeve (7) and is rotatably connected to the top rod (10).

2. The horizontal lathe center rest according to claim 1, characterized in that: The top rod (10) has a vertically arranged inner cavity, and the lower end of the adjusting screw (11) can be adjusted to extend into the inner cavity.

3. The horizontal lathe center rest according to claim 2, characterized in that: The top rod (10) has a threaded hole at its end near the pressure cap (8), and the adjusting screw (11) extends into the inner cavity through the threaded hole. The adjusting screw (11) is threadedly connected to the top rod (10).

4. The horizontal lathe center rest according to claim 1, characterized in that: The top rod (10) has a threaded hole at its end away from the pressure cap (8), and the top rod (10) is detachably connected to a pressure wheel (12) or a pressure head (13) through the threaded hole.

5. The horizontal lathe center rest according to claim 1, characterized in that: On the side walls of the upper end of the central frame upper body (1) and the lower end of the central frame lower body (2), screw holes communicating with the through hole (5) and the guide cylinder (6) are provided at the corresponding positions of the through hole (5). An adjusting rod (14) is provided at each screw hole. The adjusting rod (14) can be inserted into the through hole (5) and the guide cylinder (6) through the screw hole to fix the top rod (10).

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