Chamfering clamp for columnar structural part

Abstract

A columnar structural part chamfering clamp comprises a base, a driving seat is installed at the upper end of the base, a motor is installed on the driving seat, an output shaft of the motor is connected with a spline shaft, the spline shaft is sleeved with a rotating sleeve, the periphery of the rotating sleeve is sleeved with a push-pull plate, the push-pull plate is connected with a push-pull air cylinder, and the push-pull air cylinder is installed at the upper end of the driving seat. An inserting pipe is installed at the outer side end of the rotating sleeve, a plurality of concave parts are installed at the inner side end of the inserting pipe, pressing rods are arranged at the outer side ends of the concave parts, and the inserting pipe is in a forward extending state before clamping, so that when the structural part is placed, the structural part can be restrained and limited, the situation that the posture of the structural part is changed or the structural part falls off is avoided, and the practicability is high. And due to the arrangement of the spline shaft, the insertion pipe or the clamping part can be driven by the motor to clamp the structural part.

Description

Technical Field

[0001] The utility model relates to the technical field of structural component processing, in particular to a chamfering fixture for columnar structural components. Background Art

[0002] When processing columnar structural parts, the edges of their ends need to be chamfered. Chamfering is currently done through manual loading, which has low loading efficiency and is gradually being replaced by automatic loading. When clamping with automatic loading, the currently used three-jaw chuck is inconvenient for placing the structural parts. After placement, during the clamping process, the posture of the structural parts is easily changed, or the structural parts may fall off, which has a certain impact on the chamfering operation of the structural parts. Utility Model Content

[0003] The utility model provides a chamfering fixture for columnar structural parts, which solves the deficiencies of the above-mentioned prior art and the problem that the posture of the structural parts is easily changed or dropped when clamped after being placed, and has strong practicality.

[0004] In order to achieve the purpose of this utility model, the following technologies are proposed:

[0005] A chamfering fixture for columnar structural parts includes a base, a driving base is installed on the upper end of the base, a motor is installed on the driving base, a spline shaft is connected to the output shaft of the motor, a rotating sleeve is sleeved on the spline shaft, a push-pull plate is sleeved on the outer periphery of the rotating sleeve, a push-pull cylinder is connected to the push-pull plate, the push-pull cylinder is installed on the upper end of the driving seat, an insert is installed on the outer end of the rotating sleeve, a plurality of concave parts are installed on the inner end of the insert, a pressure rod is provided at the outer end of the concave part, through the provided insert, it is in a state of extending forward before clamping, so that when the structural part is placed, the structural part can be constrained and limited to prevent the posture of the structural part from changing or the structural part from falling off, and the provision of the spline shaft can drive the insert or clamping part to clamp the structural part through the motor.

[0006] The cannula is outer-circuited with an outer ring, and a plurality of support plates are provided on the outer ring. A guide groove is provided on the support plate, and a movable block is provided in the guide groove. A clamping piece is installed on the outer end of the movable block, and an inner pressure plate is installed on the inner end of the movable block. An oblique groove is provided on the inner pressure plate, and the inner end of the oblique groove extends upward. The pressure rod passes through the oblique groove, and a rotating inner ring is provided on the outer end of the support plate. A fixed outer ring is provided on the outer sleeve of the rotating inner ring, and a bracket is provided at the lower end of the fixed outer ring. Through the oblique groove, when the pressure rod moves driven by the cannula, the pressure rod will act on the oblique groove, thereby causing the clamping piece to close inward, thereby clamping and positioning the structural member through the clamping piece.

[0007] Furthermore, in order to ensure the stability of the movement of the cannula, a plurality of protrusions are provided on the inner end of the cannula, a guide rod is installed on the outer end of the protrusion, a guide convex plate is provided on the outer end of the guide rod, and the inner end of the guide convex plate is provided on the outer ring.

[0008] Furthermore, in order to improve the stability of clamping and the contact area during clamping, the inner wall of the clamping member is configured as a concave arc structure.

[0009] Furthermore, an end plate is installed on the outer end of the support plate, a screw is installed on the end plate, and the outer end of the screw is installed on the rotating inner ring.

[0010] The advantages of the above technical solution are:

[0011] The utility model can chamfer columnar structural parts and limit the structural parts during the placement process to prevent the posture of the structural parts from changing or falling, thereby facilitating the chamfering operation of the structural parts and stably clamping the structural parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in further detail below with reference to the accompanying drawings.

[0013] Figure 1 Shows a three-dimensional structure of one embodiment Figure 1 .

[0014] Figure 2 Shows a three-dimensional structure of one embodiment Figure 2 .

[0015] Figure 3 An enlarged view of point A is shown. DETAILED DESCRIPTION

[0016] like Figures 1 to 3 As shown, a chamfering fixture for columnar structural parts includes a base 1, a driving base 10 is installed on the upper end of the base 1, a motor 2 is installed on the driving base 10, a spline shaft is connected to the output shaft of the motor 2, a rotating sleeve 3 is sleeved on the spline shaft, a push-pull plate 30 is sleeved on the outer periphery of the rotating sleeve 3, a push-pull cylinder 31 is connected to the push-pull plate 30, the push-pull cylinder 31 is installed on the upper end of the driving base 10, a plug 32 is installed on the outer end of the rotating sleeve 3, a plurality of concave parts 33 are installed on the inner end of the plug 32, and a pressure rod 34 is provided on the outer end of the concave part 33.

[0017] The cannula 32 is provided with an outer ring 44. The inner end of the cannula 32 is provided with multiple protrusions 35. The outer ends of the protrusions 35 are mounted with guide rods 36. The outer ends of the guide rods 36 are mounted with guide protrusions 51. The inner ends of the guide protrusions 51 are mounted on the outer ring 44. The outer ring 44 is provided with multiple support plates 45. The support plates 45 have guide grooves. The guide grooves contain movable blocks 47. The outer ends of the movable blocks 47 are mounted with clamping members 48. The inner walls of the clamping members 48 have an inwardly concave arc structure. The inner ends of the movable blocks 47 are mounted with inner pressure plates 49. The inner pressure plates 49 have an oblique groove 50. The inner ends of the oblique grooves 50 extend upward at an angle. The pressure rods 34 pass through the oblique grooves 50. The outer ends of the support plates 45 are provided with a rotating inner ring 41. The rotating inner ring 41 is covered with a fixed outer ring 40. The lower end of the fixed outer ring 40 is provided with a bracket 4. An end plate 46 is mounted on the outer end of the support plate 45 , a screw rod 43 is mounted on the end plate 46 , and an outer end of the screw rod 43 is mounted on the rotating inner ring 41 .

[0018] During operation of this embodiment, the operator inserts the structural member into the insertion tube 32 , and the insertion tube 32 is in an outwardly extending state.

[0019] Then the push-pull cylinder 31 is started, and the insertion tube 32 is moved backwards by the push-pull cylinder 31 . In the process of moving backwards, the pressing rod 34 also acts on the oblique groove 50 , so that the clamping member 48 moves inwards.

[0020] This continues until the cannula 32 moves rearward to the rear end, at which point the clamping member 48 clamps the structural member.

[0021] After the clamping is completed, the motor 2 is started, and the spline shaft is driven by the motor 2 to rotate the cannula 32 and the structural member clamped by the clamping member 48. During the rotation, the rotating inner ring 41 rotates on the fixed outer ring 40. During the rotation, the tool is used to chamfer the structural member.

[0022] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Therefore, if such modifications and variations fall within the scope of the claims and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A chamfering fixture for columnar structural parts, characterized in that: It comprises a base (1), a driving seat (10) is mounted on the upper end of the base (1), a motor (2) is mounted on the driving seat (10), and a spline shaft is connected to the output shaft of the motor (2); A rotating sleeve (3) is sleeved on the spline shaft, a push-pull plate (30) is sleeved on the outer periphery of the rotating sleeve (3), a push-pull cylinder (31) is connected to the push-pull plate (30), the push-pull cylinder (31) is mounted on the upper end of the driving seat (10), an insert (32) is mounted on the outer end of the rotating sleeve (3), a plurality of concave parts (33) are mounted on the inner end of the insert (32), and a pressure rod (34) is provided on the outer end of the concave part (33); The outer sleeve of the cannula (32) is provided with an outer ring (44), and a plurality of support plates (45) are provided on the outer ring (44). A guide groove is provided on the support plate (45), and a movable block (47) is provided in the guide groove. The outer end of the movable block (47) is installed with a clamping member (48), and the inner end of the movable block (47) is installed with an inner pressure plate (49). The inner pressure plate (49) is provided with an oblique groove (50), and the inner end of the oblique groove (50) extends upward. The pressure rod (34) passes through the oblique groove (50), and the outer end of the support plate (45) is provided with a rotating inner ring (41). The outer sleeve of the rotating inner ring (41) is provided with a fixed outer ring (40), and the lower end of the fixed outer ring (40) is provided with a bracket (4).

2. The chamfering fixture for columnar structural parts according to claim 1, characterized in that: The inner end of the cannula (32) is provided with a plurality of protrusions (35), the outer end of the protrusion (35) is installed with a guide rod (36), the outer end of the guide rod (36) is sleeved with a guide convex plate (51), and the inner end of the guide convex plate (51) is provided on the outer ring (44).

3. The chamfering fixture for columnar structural parts according to claim 1, characterized in that: The inner wall of the clamping member (48) has a concave arc structure.

4. The chamfering fixture for columnar structural parts according to claim 1, characterized in that: An end plate (46) is mounted on the outer end of the support plate (45), a screw rod (43) is mounted on the end plate (46), and the outer end of the screw rod (43) is mounted on the rotating inner ring (41).

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