Lathe end face clamp for annular part

Abstract

The lathe end face clamp of the annular part comprises a main body, one end of the main body is connected with a flange plate, the other end of the main body is provided with a pressing rod, a sliding plate is arranged in the main body, the sliding plate is connected with the pressing rod in a sliding mode, and an elastic piece is arranged between the pressing rod and the sliding plate. The pressing rod is slidably connected to the main body, and the pull rod penetrates through the flange plate and is fixedly connected with the sliding plate. According to the lathe end face clamp for the annular part, clamping deformation of the annular part is reduced by clamping the end face of the annular part, meanwhile, clamping and positioning are facilitated, and use is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of lathe tooling, and in particular relates to a lathe end face clamp of an annular part. Background Art

[0002] For the inner diameter turning of annular parts, the conventional clamping method is to clamp the outer diameter of the annular part with a chuck and turn the inner diameter of the annular part. However, the wall thickness of the annular part is relatively thin, and the clamping method of clamping the outer diameter is easy to cause the annular part to deform, so the end face clamping fixture is produced.

[0003] In the prior art, Chinese patent CN214559171U discloses a lathe fixture suitable for processing elastic thin-walled parts, which uses a pressure plate to press the top of the workpiece. However, this axial clamping method of the pressure plate pressing the workpiece is not easy to position, and it is difficult to align before processing. Utility Model Content

[0004] The utility model aims to provide a lathe end face clamp for annular parts, so as to solve the problem that alignment before processing is difficult during clamping in the prior art.

[0005] To this end, the utility model provides a lathe end face clamp for annular parts, wherein a cylinder and a pull rod are arranged in the lathe, wherein the cylinder is fixedly connected to the pull rod, and comprises: a main body, wherein one end of the main body is connected to a flange plate, and the other end of the main body is provided with a pressure rod, and a sliding plate is arranged inside the main body, wherein the sliding plate is slidably connected to the pressure rod, an elastic member is arranged between the pressure rod and the sliding plate, the pressure rod is slidably connected to the main body, and the pull rod passes through the flange plate and is fixedly connected to the sliding plate.

[0006] Preferably, there are three pressing rods evenly arranged along the circumference of the main body, and the three pressing rods evenly press and fix the annular part.

[0007] Preferably, the pressure rod comprises a pressure plate, a connecting rod and an end block, one end of the connecting rod is connected to the end block, and the other end is connected to the pressure plate, and an elastic member is provided between the end block and the sliding plate.

[0008] Preferably, a guide groove is provided on the connecting rod, and the projection of the guide groove in the cross-sectional direction of the connecting rod is a semicircle.

[0009] Preferably, the projected length of the guide groove in the axial direction of the connecting rod is greater than the height of the annular part.

[0010] Preferably, a fixing block is provided on the main body, and the fixing block is slidably connected with the guide groove in the guide groove. When the pressure rod moves with the sliding plate, the fixing block remains stationary, and the guide groove guides the connecting rod to rotate 180 degrees, driving the pressure plate to rotate 180 degrees, so as to facilitate the clamping of the annular parts and prevent interference.

[0011] Preferably, a through hole is provided at the center of the flange. The flange is used to fix the clamp on the lathe.

[0012] Preferably, a tie rod connector is provided at one end of the sliding plate close to the flange, the diameter of the tie rod connector is smaller than the diameter of the through hole, and the tie rod connector is fixedly connected to the tie rod. The tie rod connector is used to connect with the tie rod on the CNC lathe, and the other end of the tie rod is connected to a cylinder, which drives the tie rod to move and thus drives the tie rod connector to move.

[0013] Preferably, a floating plate is provided inside the main body, the floating plate is slidably connected to the main body, and the floating plate is fixedly connected to the sliding plate.

[0014] Preferably, the diameter of the floating plate is the same as the inner diameter of the annular part. The floating plate is used to position the annular part, which is convenient for clamping and alignment.

[0015] Beneficial effects:

[0016] 1. The utility model provides a lathe end face clamp for an annular part, which reduces the clamping deformation of the annular part by clamping the end face of the annular part, and is convenient for clamping and positioning, making it more convenient to use.

[0017] 2. In the prior art, it is not easy to align the annular parts during clamping, and the clamping accuracy is not easy to ensure. The utility model sets a floating plate and a pressure rod. The floating plate is used to position the inner diameter of the annular parts, and the pressure rod is used to press the annular parts from the end face to prevent the annular parts from being deformed during clamping. The floating plate and the pressure rod move together with the sliding plate. The parts are first positioned on the floating plate. Then, while the floating plate moves toward the inside of the main body, the pressure rod presses the annular parts, which can prevent the annular parts from being deformed during clamping and improve the clamping accuracy of the annular parts.

[0018] 3. When the annular part is clamped, the extension direction of the pressure plate should point to the center of the main body. The pressure plate presses the annular part, but if the extension direction of the pressure plate points to the center of the main body during clamping, the pressure plate is easy to interfere with the annular part and is not easy to install. Therefore, a guide groove is set. When the pressure rod moves, the fixed block remains stationary. The guide groove guides the connecting rod to rotate 180 degrees, driving the pressure plate to rotate 180 degrees, so that the extension direction of the pressure plate is back to the center of the main body, leaving a channel for the annular part, facilitating the clamping of the annular part and preventing interference.

[0019] 4. An elastic member is provided between the end block and the sliding plate to buffer the pressing force of the pressure rod. Because the force of the cylinder pulling the rod is relatively large, and the pressure rod is rotating, when the cylinder pulls the rod connector to make the sliding plate drive the rod and the floating plate to move, the impact force of the pressure plate on the annular part is relatively large, which is easy to knock or scratch the parts. The elastic member can buffer the pressing force of the pressure rod. When the floating plate is pulled out from the inner diameter of the annular part, the pressure rod gradually increases the clamping pressure, reduces the impact force on the annular part, and ensures the quality of the annular part.

[0020] 5. The diameter of the tie rod connector is smaller than the diameter of the through hole on the flange, making it easier for the tie rod to pass through the flange. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 The present invention is a front structural schematic diagram of an embodiment of a lathe end face fixture for an annular part provided by the utility model.

[0023] Figure 2 The utility model is a schematic structural diagram of the back side of an embodiment of a lathe end face fixture for an annular part provided by the utility model.

[0024] Figure 3 The utility model is a schematic diagram of the internal structure of an embodiment of a lathe end face fixture for an annular part provided by the utility model.

[0025] Figure 4 The utility model is a cross-sectional view of an embodiment of a lathe end face fixture for an annular part provided by the utility model.

[0026] In the figure: 1-main body, 11-fixed block, 2-flange, 21-through hole, 3-pressure rod, 31-pressure plate, 32-connecting rod, 33-end block, 34-guide groove, 4-sliding plate, 41-pull rod connecting piece, 5-elastic piece, 6-floating plate, 7-cylinder, 8-pull rod. DETAILED DESCRIPTION

[0027] The content of the present invention can be more easily understood by referring to the following detailed description of the preferred implementation method of the present invention and the included embodiments. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those generally understood by ordinary technicians in the field to which the present invention belongs. When there is a conflict, the definition in this specification shall prevail.

[0028] Embodiment 1:

[0029] Provides such as Figure 1-4 The utility model shown provides a lathe end face clamp for an annular part, which reduces the clamping deformation of the annular part by clamping the end face of the annular part, and is convenient for clamping and positioning, making it more convenient to use.

[0030] A cylinder 7 and a pull rod 8 are arranged in the lathe, and the cylinder 7 and the pull rod 8 are fixedly connected.

[0031] A lathe end face clamp for an annular part comprises: a main body 1, one end of the main body 1 is connected to a flange 2, the other end of the main body 1 is provided with a pressure rod 3, a sliding plate is provided inside the main body 1, the sliding plate is slidably connected to the pressure rod 3, an elastic member 5 is provided between the pressure rod 3 and the sliding plate 4, the pressure rod 3 is slidably connected to the main body 1, and a pull rod 8 passes through the flange 2 and is fixedly connected to the sliding plate 4.

[0032] There are three pressure rods 3, which are evenly distributed along the circumference of the main body 1. The pressure rod 3 includes a pressure plate 31, a connecting rod 32 and an end block 33. One end of the connecting rod 32 is connected to the end block 33, and the other end is connected to the pressure plate 31. An elastic member 5 is arranged between the end block 33 and the sliding plate 4. A guide groove 34 is arranged on the connecting rod 32, and the projection of the guide groove 34 in the cross-sectional direction of the connecting rod 32 is a semicircle. The projection length of the guide groove 34 in the axial direction of the connecting rod 32 is greater than the height of the annular part. A fixed block 11 is arranged on the main body 1, and the fixed block 11 is slidably connected with the guide groove 34 in the guide groove 34. When the pull rod 8 pulls the sliding plate 4 to move, when the pressure rod 3 moves with the sliding plate 4, the fixed block 11 remains stationary, and the guide groove 34 guides the connecting rod 32 to rotate 180°, driving the pressure plate 31 to rotate 180 degrees, which is convenient for clamping the annular parts and preventing interference.

[0033] A through hole 2 is provided at the center of the flange 2. The flange 2 is used to fix the clamp on the lathe. A tie rod 8 connector 41 is provided at one end of the sliding plate 4 close to the flange 2. The diameter of the tie rod 8 connector 41 is smaller than the diameter of the through hole 2. The tie rod 8 connector 41 is fixedly connected to the tie rod 8. The tie rod 8 connector 41 is connected to the tie rod 8 on the CNC lathe. The other end of the tie rod 8 is connected to the cylinder 7. The cylinder 7 drives the tie rod 8 to move, thereby driving the tie rod 8 connector 41 to move, and further drives the sliding plate 4 to move.

[0034] A floating plate 6 is provided inside the main body 1, and the floating plate 6 is slidably connected to the main body 1, and the floating plate 6 is fixedly connected to the sliding plate 4. The diameter of the floating plate 6 is the same as the inner diameter of the annular part. When clamping, the floating plate 6 moves with the sliding plate 4 to extend outside the main body 1, and the annular part is sleeved on the floating plate 6 to position the annular part. When clamping, the floating plate 6 moves with the sliding plate 4 to the inside of the main body 1, so as to facilitate cutting the inner diameter of the annular part.

[0035] Working principle: When the parts are clamped, the floating plate 6 moves with the sliding plate 4 and extends out of the main body 1. When the pressure rod 3 moves with the sliding plate 4, the fixed block 11 remains stationary, and the guide groove 34 guides the connecting rod 32 to rotate 180°, driving the pressure plate 31 to rotate 180°, so that the extension direction of the pressure plate 31 is facing away from the center of the main body 1, leaving a passage for the annular parts, facilitating the clamping of the annular parts and preventing interference. At this time, the annular parts are sleeved on the floating plate 6, and the annular parts are positioned, and then the cylinder 7 is started, and the cylinder 7 pulls the pull rod 8, and the pull rod 8 pulls the sliding plate 4 to move, and the sliding plate 4 drives the pressure rod 3 and the floating plate 6 to move. At the same time, the floating plate 6 is pulled out from the inner diameter of the annular part and enters the interior of the main body 1, and the pressure rod 3 rotates 180° along the guide groove 34 and presses on the annular part, thereby pressing the parts.

Claims

1. A lathe end face fixture for annular parts, wherein a cylinder and a pull rod are arranged in the lathe, wherein the cylinder and the pull rod are fixedly connected, and wherein: include: A main body, one end of which is connected to a flange, a pressure rod is provided at the other end of the main body, a sliding plate is provided inside the main body, the sliding plate is slidably connected to the pressure rod, an elastic member is provided between the pressure rod and the sliding plate, the pressure rod is slidably connected to the main body, and the pull rod passes through the flange and is fixedly connected to the sliding plate.

2. The lathe end face fixture of an annular part according to claim 1, characterized in that: There are three pressure rods, which are evenly distributed along the circumference of the main body.

3. The lathe end face fixture of an annular part according to claim 2, characterized in that: The pressure rod comprises a pressure plate, a connecting rod and an end block, one end of the connecting rod is connected to the end block, and the other end is connected to the pressure plate, and an elastic member is arranged between the end block and the sliding plate.

4. The lathe end face fixture of an annular part according to claim 3, characterized in that: The connecting rod is provided with a guide groove, and the projection of the guide groove in the cross-sectional direction of the connecting rod is a semicircle.

5. The lathe end face fixture of an annular part according to claim 4, characterized in that: The projected length of the guide groove in the axial direction of the connecting rod is greater than the height of the annular part.

6. The lathe end face fixture of an annular part according to claim 5, characterized in that: The main body is provided with a fixing block, and the fixing block is slidably connected with the guiding groove in the guiding groove.

7. The lathe end face fixture of an annular part according to claim 1, characterized in that: A through hole is arranged at the center of the flange.

8. The lathe end face fixture of an annular part according to claim 7, characterized in that: A pull rod connector is disposed at one end of the sliding plate close to the flange, the diameter of the pull rod connector is smaller than the diameter of the through hole, and the pull rod connector is fixedly connected to the pull rod.

9. The lathe end face fixture of an annular part according to claim 1, characterized in that: A floating plate is arranged inside the main body, the floating plate is slidably connected to the main body, and the floating plate is fixedly connected to the sliding plate.

10. The lathe end face fixture of an annular part according to claim 9, characterized in that: The diameter of the floating plate is the same as the inner diameter of the annular part.

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