Rotary vertical machining clamp for cambered surface thin-wall support type machining center

Abstract

The utility model discloses a rotary vertical machining clamp for a cambered surface thin-wall support type machining center, which can accurately position a workpiece without crushing the workpiece, is higher in positioning stability of the workpiece, and can improve the machining efficiency of the workpiece. The clamp comprises a flange plate, a bottom plate is vertically mounted on the surface of the flange plate, and the clamp is characterized in that a circumferential positioning mechanism and an axial positioning mechanism of a workpiece to be clamped are mounted on the bottom plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to thin -walled shell class positioning fixture technical field, concretely relates to a kind of arc surface thin -walled support class machining center rotation and erecting additional fixture. BACKGROUND

[0002] Certain thin -walled shell class workpiece is applied to engineering instrument, it needs higher precision, because its material is soft and thin, the difficulty of clamping fixation is greater, traditional manual clamp, workpiece cannot be stressed evenly, workpiece is easily bruised, and the positioning stability of workpiece is poorer, reduce workpiece processing efficiency. UTILITY MODEL CONTENTS

[0003] In view of the defects of thin -walled shell class manual clamp, workpiece is easily bruised, the positioning stability of workpiece is poorer, reduce workpiece processing efficiency, the utility model relates to a kind of arc surface thin -walled support class machining center rotation and erecting additional fixture, it can not bruise workpiece accurately positioned, the stability of workpiece positioned is stronger, it can improve workpiece processing efficiency.

[0004] The utility model provides the following technical scheme:

[0005] It includes flange, the bottom plate is vertically installed on the surface of flange, and it is characterized in that: the bottom plate is installed with circumferential positioning mechanism and axial positioning mechanism of workpiece to be clamped.

[0006] It is further characterized in that:

[0007] The circumferential positioning mechanism includes positioning block, the positioning block is columnar, its peripheral surface is provided with first positioning head, second positioning head and third positioning head, the first positioning head is long strip type, it is arranged on the surface of the positioning block along the long strip direction of the columnar positioning block, the third positioning head is long strip type and is provided with recess in middle part, second positioning head is symmetrically arranged on the peripheral surface perpendicular to first positioning head and second positioning head, and the first positioning head, third positioning head corresponds, the bottom plate is provided with compression mechanism, the spring pressing rod of compression structure and the first positioning head, third positioning head realize the circumferential positioning of workpiece to be positioned.

[0008] The axial positioning mechanism includes the positioning block, rotation shaft head is connected with positioning block by screw after passing through positioning pressing block, rotation shaft head is connected with bottom plate pressing block and bottom plate by screw below the side of positioning pressing block, the positioning pressing block, bottom plate pressing block and the bottom plate form the axial positioning mechanism of workpiece to be clamped.

[0009] In the circumferential positioning structure, the first positioning head and third positioning head of long strip type are distributed along the circumference of the positioning block, on the opposite side of the connecting line between the two, the limit block is installed on the bottom plate, the limit groove that adapts the peripheral surface of positioning block is provided on the limit block.

[0010] The pressing structure comprises a support plate, the support plate body is in an "L" shape, lock inner rods are symmetrically installed on a long end mounting surface of the support plate, spring pressing rods are symmetrically arranged on a short end of the support plate, the head part of the spring installed on the spring pressing rod penetrates through the short end of the support plate, a lock groove is arranged on one side of the rod body of the spring pressing rod, and a rotating pin is installed at the tail part of the spring pressing rod; the lock inner rod and the lock groove of the spring pressing rod are screwed into the support plate to limit and fix the spring pressing rod.

[0011] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0012] The first positioning head, the second positioning head and the third positioning head arranged on the positioning block body provide positioning support for two ends and the center of the inner concave arc surface of the workpiece, so that the workpiece is not easily pressed and injured when being positioned and pressed, and the stability of workpiece positioning is further increased by the three positioning heads of the workpiece.

[0013] The workpiece is pressed and positioned on the positioning block by screwing the spring pressing rod, the workpiece is pressed from the more appropriate two sides during positioning, the probability of the workpiece being pressed and injured is greatly reduced, the workpiece is more accurately positioned, and the machining efficiency of the workpiece is improved.

[0014] The positioning block presses and positions the more appropriate side of the workpiece, the bottom plate pressing block can press and position the arc surface side of the workpiece at the bottom, and the positioning block and the bottom plate pressing block further improve the stability of workpiece positioning and are beneficial to improving the machining efficiency of the workpiece.

[0015] The lock inner rod ensures that the spring pressing rod is stable during pressing and positioning of the workpiece, ensures that the workpiece is not loosened to reduce the stability of the workpiece being positioned, further improves the positioning stability of the spring pressing rod, and provides protection for maintaining the stability of the workpiece. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure working schematic view of the utility model;

[0017] Figure 2 It is a whole structure schematic view of the utility model;

[0018] Figure 3 It is a whole structure top view of the utility model;

[0019] Figure 4 It is a positioning and pressing structure and a positioning block working schematic view of the utility model;

[0020] Figure 5 It is a positioning and pressing structure and a positioning block structure schematic view of the utility model;

[0021] Figure 6 It is a positioning block structure schematic view of the utility model;

[0022] Figure 7 It is a positioning and pressing structure schematic view of the utility model;

[0023] Figure 8 It is a workpiece structure schematic view of the utility model.

[0024] Mark explanation:

[0025] 1, flange plate;2, bottom plate;3, upper batten;4, lower batten;5, support plate;6, limit block;7, positioning block;8, positioning pressure block;9, bottom plate pressure block;10, spring pressure rod;11, rotating pin;12, locking inner rod;13, first positioning head;14, second positioning head;15, third positioning head. Specific implementation

[0026] The utility model provides a kind of arc surface thin wall support type machining center rotation and erection clamping device as shown in Figures 1-8 It includes flange plate 1, flange plate 1 surface is vertically installed with bottom plate 2, the surface and bottom surface edge of bottom plate 2 are respectively installed with upper batten 3 and lower batten 4 connection flange plate 1, and bottom plate 2 is installed with the circumferential positioning mechanism and axial positioning mechanism of the workpiece to be clamped;

[0027] See Figure 5 、 Figure 6 , circumferential positioning mechanism includes positioning block 7, positioning block 7 is columnar, its circumferential surface is provided with first positioning head 13, second positioning head 14 and third positioning head 15, first positioning head 13 is long strip type, it is arranged on the surface of positioning block 7 along the long direction of columnar positioning block 7, third positioning head 15 is long strip type and is provided with recess in middle part, second positioning head 14 is symmetrically arranged on the circumferential surface of positioning block 7 perpendicular to first positioning head 13 and second positioning head 15, and corresponds with first positioning head 13, third positioning head 15, and spring pressure rod 10 of pressing mechanism is set on bottom plate 2, and first positioning 13, third positioning head 15 are realized circumferential positioning to the workpiece to be positioned by spring pressure rod 10 of pressing structure;

[0028] See Figure 5 , axial positioning mechanism includes positioning block 7, rotating shaft head is connected with positioning block 7 after passing through positioning pressure block 8, rotating shaft head is screw connected with bottom plate pressure block 9 and bottom plate 2 in the side portion below positioning pressure block 8, and positioning pressure block 8, bottom plate pressure block 9 and bottom plate 2 form the axial positioning mechanism to the workpiece to be clamped;

[0029] See Figure 3In the circumferential positioning structure, the first positioning head 13 and the third positioning head 15 in a strip shape are arranged along the circumference of the positioning block 7, and a limiting block 6 is arranged on the bottom plate 2 at the opposite side of the connecting line between the first positioning head 13 and the third positioning head 15, and the limiting block 6 is provided with a limiting groove matched with the surface of the positioning block 7;

[0030] See Figure 1 、 Figure 4 The pressing structure comprises a support plate 5, the body of the support plate 5 is in an "L" shape, the locking inner rods 12 are symmetrically arranged on the installation surface of the long end of the support plate 5, the spring pressing rods 10 are symmetrically arranged on the short end of the support plate 5, the head portions of the spring pressing rods 10, on which springs are arranged, penetrate through the short end of the support plate 5, the locking grooves are arranged on one side of the rod bodies of the spring pressing rods 10, and the rotating pins 11 are arranged at the tail portions of the spring pressing rods 10, see Figure 7 The locking inner rods 12 and the spring pressing rods 10 can be fixed by being screwed into the locking grooves in the support plate 5.

[0031] The working principle of the utility model is as follows:

[0032] The utility model is described with reference to the drawings Figures 1-8 When the utility model is used, firstly, the arc surface of the part is attached to the positioning block 7, and the two ends of the workpiece are attached to the limiting block 6, the rotating pins 11 in the pressing positioning structure are screwed to press the spring pressing rods 10 from both sides to press and fix the workpiece, at this time, the locking inner rods 12 are screwed to fix the spring pressing rods 10, and then the bolts on the positioning pressing block 8 and the bottom plate pressing block 9 are screwed to press the workpiece, and the workpiece can be machined, the clamp avoids the problem that the thin-walled part is easily deformed under stress, and improves the stability of clamping and the accuracy of positioning.

Claims

1. A kind of arc surface thin-walled support class machining center rotation adds clamp, it includes flange plate, bottom plate is vertically installed on the surface of the flange plate, it is characterized by: The bottom plate is provided with a circumferential positioning mechanism and an axial positioning mechanism for clamping a workpiece; the circumferential positioning mechanism comprises a positioning block in a columnar shape, a first positioning head, a second positioning head and a third positioning head are arranged on the circumferential surface of the positioning block, the first positioning head is in a long strip shape and is arranged on the surface of the positioning block along the long strip direction of the positioning block, the third positioning head is in a long strip shape and is provided with a groove at the middle part, the second positioning head is symmetrically arranged on the circumferential surface of the positioning block perpendicular to the first positioning head and the second positioning head, and the first positioning head and the third positioning head correspond to each other, the bottom plate is provided with a pressing mechanism, and the spring pressing rod of the pressing mechanism and the first positioning head and the third positioning head realize circumferential positioning of the workpiece to be positioned.

2. The fixture for turning and clamping a thin-walled arc-surface support type machining center according to claim 1, characterized in that: The circumferential positioning mechanism comprises the positioning block, the rotating shaft head is threadedly connected with the positioning block after penetrating the positioning pressing block, and the rotating shaft head is threadedly connected with the bottom plate pressing block below the side of the positioning pressing block, the positioning pressing block, the bottom plate pressing block and the bottom plate form an axial positioning mechanism for clamping a workpiece.

3. The fixture for turning and clamping a thin-walled arc-surface support type machining center according to claim 2, characterized in that: In the axial positioning mechanism, the first positioning head and the third positioning head in a long strip shape are arranged along the circumference of the positioning block, and a limiting block is mounted on the bottom plate at the opposite side of the connecting line between the first positioning head and the third positioning head, and the limiting block is provided with a limiting groove matched with the circumferential surface of the positioning block.

4. The fixture for turning and clamping a thin-walled arc-surface support type machining center according to claim 3, characterized in that: The pressing mechanism comprises a support plate, the support plate body is in an "L" shape, lock inner rods are symmetrically mounted on the mounting surface of the long end of the support plate, spring pressing rods are symmetrically arranged on the short end of the support plate, the head part of the spring mounted on the spring pressing rod penetrates the short end of the support plate, a lock groove is arranged on one side of the rod body of the spring pressing rod, a rotating pin is mounted at the tail part of the spring pressing rod, and the lock inner rod inserted into the support plate and the lock groove of the spring pressing rod are screwed to limit and fix the spring pressing rod.

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