Excircle burnishing tool

Abstract

The utility model provides an outer circle burnishing tool which comprises a rotating support, a rotating driving mechanism and a lathe saddle, the rotating support extends up and down, a sleeve capable of rotating along the central axis of the sleeve is arranged in the rotating support in a rotating mode, the sleeve extends in the front-back direction, and a spring clamping jaw capable of sliding front and back is arranged in the sleeve in a sliding mode. The front end of the inner wall of the sleeve is provided with a conical slope, and the outer surface of the spring clamping jaw is provided with an extrusion slope attached to the conical slope. The rear end of the spring clamping jaw is fixedly connected with a rotary connector; a mounting frame is arranged behind the rotating support, a first driving device is arranged on the mounting frame, a connector is arranged on the first driving device, and the first driving device is used for driving the connector to move front and back. The outer circle burnishing tool can automatically enable the spring chuck to conduct clamping, and clamping of the conical sleeve does not need to be manually adjusted through tools such as a wrench; and meanwhile, the clamping driving mechanism and the rotating driving mechanism do not interfere with each other, so that automatic production is facilitated while manpower is saved.

Description

Technical Field

[0001] The utility model relates to metallurgical processing, in particular to an external cylindrical extrusion tooling. Background Art

[0002] Metallurgical processing refers to the process of treating metal materials through a series of processes to change their shape, size, and performance. Some metal workpieces formed by metallurgical processing are circular workpieces, and some circular workpieces have high requirements for the quality of the outer surface. It is necessary to improve the surface finish of the workpiece and reduce the surface roughness. Therefore, outer cylindrical extrusion tooling is required.

[0003] The external cylindrical burnishing tool applies pressure to the surface of the part through the burnishing knife, causing plastic deformation of the material surface, thereby improving the surface roughness. During the burnishing process, the workpiece needs to be clamped. Circular workpieces are generally clamped with spring chucks, and when clamping, pressure is generally applied to the spring chuck by rotating the sleeve, thereby tightening the jaws of the spring chuck and clamping the workpiece. However, during use, manual clamping requires manual use of tools such as wrenches to rotate the sleeve, resulting in low work efficiency. Utility Model Content

[0004] In order to solve the problem in the background art that manual clamping with tools such as wrenches is required during use, the utility model proposes an external cylindrical polishing tool.

[0005] The technical solution of the utility model is: comprising a rotating bracket, a rotating drive mechanism and a lathe tool holder,

[0006] The rotating bracket extends up and down, and a sleeve that can rotate along its own central axis is rotatably provided in the rotating bracket. The sleeve extends in the front-to-back direction, and a spring clamp that can slide back and forth is slidably provided in the sleeve. The front end of the inner wall of the sleeve is provided with a conical inclined surface, and the outer surface of the spring clamp is provided with an extrusion inclined surface that fits the conical inclined surface.

[0007] The rear end of the spring clamp is fixedly connected with a rotating connector;

[0008] A mounting frame is provided behind the rotating bracket, a first driving device is provided on the mounting frame, a connecting head is provided on the first driving device, the first driving device is used to drive the connecting head to move forward and backward, and the interior of the connecting head is rotatably connected to the rear end of the rotating connecting head;

[0009] The rotation drive mechanism is arranged on the left side of the rotation bracket, and the rotation drive mechanism is used to drive the sleeve to rotate;

[0010] A lathe tool holder that can slide back and forth is slidably mounted on the lathe, and is located on the right side of the rotating bracket. A third drive device that can rotate left and right is provided on the lathe tool holder, and a tool changing frame is provided on the third drive device. The third drive device is used to drive the tool changing frame to move left and right, and a polishing knife is detachably connected to the tool changing frame.

[0011] Preferably, the rotation drive mechanism includes a second drive device, the output end of the second drive device faces the rotating bracket, and the output end of the second drive device is fixedly connected to the first worm;

[0012] A first worm gear is fixedly sleeved on the outer surface of the sleeve, and the first worm is transmission-connected to the first worm gear.

[0013] Preferably, a rotating table is fixedly installed on the lathe tool holder, a support shaft extending up and down is rotatably provided in the rotating table, the upper end of the support shaft rotates and passes through the rotating table, the upper end of the support shaft is fixedly connected to a mounting base, and a third driving device is fixedly installed on the mounting base;

[0014] A driving member is provided on the supporting shaft, and the driving member is used for driving the supporting shaft to rotate.

[0015] Preferably, the driving member includes a second worm gear, which is fixedly sleeved on the support shaft. A radially extending rotating shaft is rotated in the rotating table, and a second worm is fixedly sleeved on the rotating shaft. The second worm is transmission-connected to the second worm gear.

[0016] Preferably, one end of the rotating shaft rotates to pass through the outer surface of the rotating table, and the end of the rotating shaft that rotates to pass through the outer surface of the rotating table is fixedly connected to the turntable.

[0017] Preferably, the mounting base is fixedly connected to a connecting support, the connecting support is detachably connected to a third driving device, and the output end of the third driving device is fixedly connected to a tool changing frame;

[0018] A slot with a left opening is provided in the tool changing frame, a light extrusion knife is inserted in the slot, and a positioning pin extending leftward and rightward is inserted on the tool changing frame, and the positioning pin passes through the light extrusion knife.

[0019] Preferably, a rotating bearing is fixedly connected to the interior of the connector, and the inner wall of the inner ring of the bearing is fixedly connected to the outer surface of the rear end of the rotating connector.

[0020] The advantages of the utility model are as follows: when in use, the spring clamping jaw can be driven to move back and forth by the first driving device, so that the clamping end of the spring clamping jaw is forced to contract, thereby clamping the workpiece, saving manpower and facilitating automated production. Then, the sleeve is driven to rotate by the external driving device, thereby driving the spring clamping jaw to rotate, and then the workpiece is rotated, which can quickly and automatically clamp the workpiece and drive the workpiece to rotate. There is no interference between the two driving mechanisms of clamping and rotating, which is convenient for the automation of workpiece extrusion, thereby saving manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the main structure of Example 1;

[0023] Figure 2 for Figure 1 A schematic diagram of the right sectional structure of FIG.

[0024] Figure 3 for Figure 1 A schematic diagram of a partial cross-sectional top view of the structure;

[0025] Figure 4 for Figure 1 Schematic diagram of the local structure of the tool changer.

[0026] In the figure, 1 is a rotating bracket, 2 is a sleeve, 201 is a first worm gear, 3 is a spring clamp, 4 is a rotating connector, 5 is a rotating bearing, 6 is a connector, 7 is a first driving device, 8 is a second driving device, 801 is a first worm, 9 is a lathe tool holder, 10 is a rotating table, 101 is a second worm gear, 102 is a rotating shaft, 103 is a second worm, 11 is a mounting base, 12 is a connecting support, 13 is a third driving device, 14 is a tool changer, 15 is a turntable, and 16 is a polishing knife. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1: This example aims to provide an external cylindrical extrusion tool.

[0029] according to Figures 1 to 4 As shown, it includes a rotating bracket 1, a rotating drive mechanism and a lathe tool holder 9.

[0030] The rotating bracket 1 extends up and down, and a sleeve 2 that can rotate along its own central axis is rotatably provided inside the rotating bracket 1. The sleeve 2 extends in the front and back directions, and a spring clamp 3 that can slide back and forth is slidably provided inside the sleeve 2. A conical inclined surface is provided at the front end of the inner wall of the sleeve 2, and an extrusion inclined surface is provided on the outer surface of the spring clamp 3 that fits the conical inclined surface.

[0031] A mounting frame is provided behind the rotating bracket 1, and a first driving device 7 is provided on the mounting frame. A connecting head 6 is provided on the first driving device 7. The first driving device 7 is used to drive the connecting head 6 to move forward and backward. In this embodiment, the first driving device 7 can be a cylinder, and the telescopic end of the cylinder is fixedly connected to the connecting head 6. The interior of the connecting head 6 is fixedly connected to a rotating bearing 5, and the rear end of the spring clamp 3 is fixedly connected to the rotating connecting head 4. The inner wall of the inner ring of the bearing 5 is fixedly connected to the rear end outer surface of the rotating connecting head 4.

[0032] The rotation drive mechanism is arranged on the left side of the rotating bracket 1, and the rotation drive mechanism is used to drive the sleeve 2 to rotate. The rotation drive mechanism includes a second drive device 8. In this embodiment, the second drive device 8 can be an electric motor. The output end of the second drive device 8 faces the rotating bracket 1. The output end of the second drive device 8 is fixedly connected to the first worm 801. The outer surface of the sleeve 2 is fixedly provided with a first worm gear 201, and the first worm gear 801 is transmission-connected to the first worm gear 201.

[0033] A lathe tool holder 9 that can slide back and forth is slidably mounted on the lathe. In this embodiment, the lathe tool holder 9 uses a common lathe tool holder 9 in the prior art. The lathe tool holder 9 can move back and forth on the lathe under the action of the control system, and the lathe tool holder 9 is located on the right side of the rotating bracket 1. A rotating table 10 is fixedly mounted on the lathe tool holder 9. A support shaft extending up and down is provided in the rotating table 10. The upper end of the support shaft rotates out of the rotating table 10, and the upper end of the support shaft is fixedly connected to a mounting base 11.

[0034] A driving member is provided on the support shaft, which includes a second worm gear 101. The second worm gear 101 is fixedly sleeved on the support shaft. A radially extending rotating shaft 102 is rotated in the rotating table 10. A second worm 103 is fixedly sleeved on the rotating shaft 102. The second worm 103 is transmission-connected to the second worm gear 101.

[0035] One end of the rotating shaft 102 rotates and passes through the outer surface of the rotating platform 10 , and the end of the rotating shaft 102 that rotates and passes through the outer surface of the rotating platform 10 is fixedly connected to the turntable 15 .

[0036] A connecting support 12 is fixedly connected to the mounting base 11, and a third driving device 13 is detachably connected to the connecting support 12. In this embodiment, the third driving device 13 can be a three-axis cylinder. The output end of the third driving device 13 is fixedly connected to a tool changing frame 14. A left-opening slot is provided in the tool changing frame 14, and a polishing knife 16 is inserted into the slot. In this embodiment, the polishing knife 16 can be a diamond rolling cutter head or a roller rolling cutter head. A positioning pin extending left and right is inserted on the tool changing frame 14, and the positioning pin passes through the polishing knife 16.

[0037] Working principle: When in use, first pull out the positioning pin, then select the appropriate extrusion burnishing knife 16 according to the extrusion burnishing requirements of the workpiece, then insert the extrusion burnishing knife 16 into the slot on the tool changer 14, and finally reset the positioning pin to quickly replace the extrusion burnishing knife 16.

[0038] The workpiece is then placed on the spring clamp 3 so that the part that needs to be squeezed out is located outside the spring clamp 3. Then the first drive device 7 is controlled to drive the connecting head 6 to move back and forth. The forward and backward movement of the connecting head 6 drives the rotating connecting head 4 to move back and forth. The forward and backward movement of the rotating connecting head 4 drives the spring clamp 3 to move back and forth. The forward and backward movement of the spring clamp 3 causes the extrusion inclined surface on the spring clamp 3 to contact the conical inclined surface provided on the front end of the inner wall of the sleeve 2, so that the spring clamp 3 is deformed under force, thereby tightening the clamping end of the spring clamp 3, thereby clamping the workpiece.

[0039] When rotating, the second driving device 8 is controlled to start, and the second driving device 8 starts to drive the first worm 801 to rotate, the first worm 801 rotates to drive the first worm wheel 201 to rotate, the first worm wheel 201 rotates to drive the sleeve 2, the sleeve 2 rotates to drive the spring clamp 3 to rotate, and the spring clamp 3 rotates to drive the workpiece to rotate.

[0040] When the workpiece rotates, the lathe tool holder 9 is driven to move forward and backward through the control system. The movement of the lathe tool holder 9 drives the extrusion burnishing knife 16 to move forward and backward, and then the third drive device 13 is driven to make the extrusion burnishing knife 16 move left and right along the driving direction of the third drive device 13, so that the extrusion burnishing knife 16 contacts the outer surface of the workpiece, thereby grinding the outer circle of the workpiece.

[0041] When the rotation angle of the extrusion burnishing knife 16 needs to be adjusted, the turntable 15 is rotated. The rotation of the turntable 15 drives the rotating shaft 102 to rotate. The rotation of the rotating shaft 102 drives the second worm 103 to rotate. The rotation of the second worm 103 drives the second worm gear 101 to rotate. The rotation of the second worm gear 101 drives the support shaft to rotate. The rotation of the support shaft drives the mounting base 11 to rotate along the axis of the support shaft. The rotation of the mounting base 11 drives the third driving device 13 to rotate, thereby driving the extrusion burnishing knife 16 to rotate.

[0042] Therefore, when in use, the spring clamp 3 can be driven back and forth by the first drive device 7 to quickly clamp the workpiece, thereby avoiding manual rotation of the sleeve for clamping, saving manpower, and facilitating automated production. After clamping, the sleeve 2 can be driven to rotate to drive the workpiece to rotate, which is convenient for extrusion. At the same time, the position of the extrusion knife 16 is easy to adjust.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is determined by the appended claims rather than the foregoing description. It is intended that all variations within the meaning and range of equivalents of the claims be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An external cylindrical polishing tool, characterized by: It comprises a rotating support (1), a rotating drive mechanism and a lathe tool holder (9), The rotating bracket (1) extends vertically, and a sleeve (2) that can rotate along its own central axis is rotatably provided inside the rotating bracket (1). The sleeve (2) extends in the front-back direction, and a spring clamp (3) that can slide forward and backward is slidably provided inside the sleeve (2). A conical inclined surface is provided at the front end of the inner wall of the sleeve (2), and an extrusion inclined surface that fits the conical inclined surface is provided on the outer surface of the spring clamp (3); The rear end of the spring clamp (3) is fixedly connected to a rotating connector (4); A mounting frame is provided behind the rotating bracket (1), a first driving device (7) is provided on the mounting frame, a connecting head (6) is provided on the first driving device (7), the first driving device (7) is used to drive the connecting head (6) to move forward and backward, and the interior of the connecting head (6) is rotatably connected to the rear end of the rotating connecting head (4); The rotation drive mechanism is arranged on the left side of the rotation bracket (1), and the rotation drive mechanism is used to drive the sleeve (2) to rotate; A lathe tool holder (9) that can slide forward and backward is slidably arranged on the lathe, and the lathe tool holder (9) is located on the right side of the rotating bracket (1). A third driving device (13) that can rotate left and right is provided on the lathe tool holder (9), and a tool changing frame (14) is provided on the third driving device (13). The third driving device (13) is used to drive the tool changing frame (14) to move left and right. A polishing knife (16) is detachably connected to the tool changing frame (14).

2. The external cylindrical extrusion tool according to claim 1, characterized in that: The rotation drive mechanism comprises a second drive device (8), the output end of the second drive device (8) faces the rotation bracket (1), and the output end of the second drive device (8) is fixedly connected to the first worm (801); A first worm gear (201) is fixedly sleeved on the outer surface of the sleeve (2), and the first worm (801) is transmission-connected to the first worm gear (201).

3. The external cylindrical extrusion tool according to claim 1, characterized in that: A rotating table (10) is fixedly mounted on the lathe tool rest (9), a support shaft extending vertically is rotatably provided in the rotating table (10), an upper end of the support shaft rotates and passes through the rotating table (10), an upper end of the support shaft is fixedly connected to a mounting base (11), and a third driving device (13) is fixedly mounted on the mounting base (11); A driving member is provided on the supporting shaft, and the driving member is used for driving the supporting shaft to rotate.

4. The external cylindrical extrusion tool according to claim 3, characterized in that: The driving member comprises a second worm gear (101), the second worm gear (101) being fixedly sleeved on the supporting shaft, a radially extending rotating shaft (102) being rotatably provided in the rotating platform (10), a second worm (103) being fixedly sleeved on the rotating shaft (102), and the second worm (103) being transmission-connected to the second worm gear (101).

5. The external cylindrical extrusion tool according to claim 4, characterized in that: One end of the rotating shaft (102) rotates and passes through the outer surface of the rotating table (10), and the end of the rotating shaft (102) that rotates and passes through the outer surface of the rotating table (10) is fixedly connected to the turntable (15).

6. The external cylindrical extrusion tool according to claim 3, characterized in that: The mounting base (11) is fixedly connected to a connecting support (12), a third driving device (13) is detachably connected to the connecting support (12), and an output end of the third driving device (13) is fixedly connected to a tool changing frame (14); A slot with a left opening is provided in the tool changing frame (14), a light extrusion knife (16) is inserted into the slot, and a positioning pin extending leftward and rightward is inserted on the tool changing frame (14), and the positioning pin passes through the light extrusion knife (16).

7. The external cylindrical extrusion tool according to claim 1, characterized in that: The interior of the connector (6) is fixedly connected to a rotating bearing (5), and the inner wall of the inner ring of the bearing (5) is fixedly connected to the rear end outer surface of the rotating connector (4).

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