Angular floating wedge counterforce mechanism

Abstract

The utility model discloses an angular floating wedge counter-force mechanism, which comprises a vertical cylinder, a guide rod positioned in a guide seat, an angular floating component positioned at the top end of the guide rod, and a wedge counter-force component matched with the guide rod, the wedge counter-force component comprises a horizontally arranged horizontal cylinder and a wedge driven by the horizontal cylinder, the top face of the wedge block is a self-locking inclined face, an air cylinder rod of the vertical air cylinder extends downwards, a floating connecting base is arranged at the end of the air cylinder rod, the guide rod is vertically arranged, the bottom end of the guide rod is connected with the floating connecting base, a cutting groove is formed in the guide rod, and when the guide rod is supported in place, a shell workpiece is pressed in a floating mode. When the wedge block moves in place, the top face of the wedge block abuts against the top face of the cutting groove and is self-locked. According to the utility model, the press-fitting stress is more reasonable, no gap exists, and the qualified rate in the press-fitting process is increased.

Description

Technical Field

[0001] The utility model relates to a reaction force support for shell press-fitting, in particular to an angularly floating wedge reaction force mechanism. Background Art

[0002] In the semi-automatic press-fitting station, when some shell workpieces are press-fitted, reaction force support is provided. The reaction force support surface of the shell workpiece is the blank surface and the inclined surface. The current reaction force support block is directly and rigidly lifted by the cylinder. The reaction force support block does not match the shell support surface, and there is a gap, which leads to unreasonable force in the subsequent press-fitting process, reducing the product press-fitting qualified rate. Utility Model Content

[0003] The utility model aims to provide an angularly floating wedge block reaction force mechanism so as to make the press-fitting force reasonable and with zero gap.

[0004] To this end, the utility model provides an angular floating wedge reaction force mechanism, comprising a vertical cylinder, a guide rod located in a guide seat, an angular floating assembly located at the top of the guide rod, and a wedge reaction force assembly cooperating with the guide rod, wherein the wedge reaction force assembly comprises a horizontally arranged horizontal cylinder and a wedge driven by the horizontal cylinder, wherein the top surface of the wedge is a self-locking inclined surface, the cylinder rod of the vertical cylinder extends downward and a floating connecting seat is provided at its end, the guide rod is vertically arranged and its bottom end is connected to the floating connecting seat, wherein a groove is provided on the guide rod, and when the guide rod is supported in place, it floats and presses the shell workpiece, and when the wedge moves into place, its top surface abuts against the top surface of the groove and self-locks.

[0005] Furthermore, the guide rod is provided with left-right symmetrical grooves, the wedge block has a central groove, and the top surfaces of the wedge block located on both sides of the central groove are self-locking inclined surfaces that match the top surfaces of the left and right grooves.

[0006] Furthermore, the bevel angle of the self-locking bevel is 3°-8°.

[0007] Furthermore, a floating joint is provided at the end of the cylinder rod of the horizontal cylinder, and the wedge block is connected to the floating joint.

[0008] Furthermore, the floating connection seat includes a mounting shaft connected to the end of the cylinder rod, a floating cross bar sleeved on the mounting shaft, and a compression spring biasing the floating cross bar, wherein the floating cross bar is fixedly connected to the bottom end of the guide rod.

[0009] Furthermore, the above-mentioned wedge block reaction force assembly includes a reaction force support block, a floating block, a spherical washer, a contour bolt, and an O-ring, wherein the reaction force support block is used to cooperate with the reaction force support surface of the shell workpiece, the reaction force support block is transitionally connected to the top of the floating block, the lower end of the floating block is supported on the top of the guide rod through the spherical washer, and the contour bolt is used to press the O-ring onto the floating block.

[0010] Compared with the prior art, the utility model realizes reasonable force support for the workpiece through a simple structure, uses a wedge block and an angular floating structure, so that the subsequent press-fitting force is more reasonable and has no gap, thereby increasing the qualified rate during the press-fitting process.

[0011] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the wedge block reaction mechanism of the utility model;

[0014] Figure 2 yes Figure 1 A top view of

[0015] Figure 3 yes Figure 2 AA section view;

[0016] Figure 4 yes Figure 2 BB cross-sectional view;

[0017] Figure 5 yes Figure 4 A local enlarged schematic diagram of I;

[0018] Figure 6 The figure shows the matching relationship between the guide rod and the wedge block of the wedge block reaction mechanism of the utility model;

[0019] Figure 7 A schematic diagram showing a wedge block reaction mechanism of the utility model supporting a housing workpiece is shown. DETAILED DESCRIPTION

[0020] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0021] The wedge block reaction force mechanism of the utility model is used for providing reaction force support to a shell workpiece in a semi-automatic press-fitting station.

[0022] Combined with reference Figures 1 to 7 The wedge reaction mechanism of the utility model includes a vertical cylinder 1, a guide rod 3 located in a guide seat 2, an angular floating assembly 4 located at the top of the guide rod 3, and a wedge reaction assembly 5 matched with the guide rod 3.

[0023] The vertical cylinder 1 is arranged in such a way that its cylinder rod extends downward, a floating connection seat 6 is provided at its end, and a guide rod is arranged side by side with the vertical cylinder and its bottom end is connected to the floating seat.

[0024] The floating connection seat 6 includes a mounting shaft 61 connected to the end of the cylinder rod, a floating cross bar 62 sleeved on the mounting shaft, and a compression spring 63 biasing the floating cross bar 62 , wherein the floating cross bar 62 is fixedly connected to the bottom end of the guide rod 3 .

[0025] When the cylinder rod of the vertical cylinder is lifted, the floating connection seat is lifted together. When the angular floating component 10 at the top of the guide rod abuts against the reaction force support surface of the shell workpiece, the guide rod 3 can float elastically to avoid hard collision.

[0026] The angular floating component 4 is used to float angularly when contacting the reaction force support surface, thereby matching the reaction force support surface of the shell, such as the blank surface or the inclined surface.

[0027] The wedge reaction force assembly 5 comprises a horizontal cylinder 51, a floating joint 52 and a wedge 53. One end of the floating joint 52 is connected to the end of the cylinder rod of the horizontal cylinder 51, and the other end is connected to the wedge 53.

[0028] When the guide rod is lifted into position (at this time, the reaction force support surface of the shell workpiece faces the guide rod limit), the wedge block 53 is driven by the horizontal cylinder 51 to move horizontally and enter the moving path of the guide rod 3.

[0029] The wedge block top surface 53a of the wedge block 53 is an inclined surface, and a center slot 53b is provided on the wedge block 53. During the horizontal movement of the wedge block 53, the center slot 53b can slide relative to the rod body at the groove of the guide rod 3, thereby avoiding interference between the movements of the two.

[0030] A pair of grooves 3a are symmetrically provided on the guide rod 3, and the top surface 3b of the grooves is an inclined surface adapted to the top surface 53a of the wedge block. When the guide rod is lifted into place, the pair of grooves 3a move to a position facing the wedge block 53. At this time, the wedge block cylinder 51 extends, and the top surface 53a of the wedge block abuts against the top surface 3b of the grooves.

[0031] Since the wedge block angle is within 8°, for example 3°, it can be known through force analysis calculation that when the angle is within 8°, if the wedge block and the guide rod are both made of steel material (friction coefficient 0.15), the two can achieve self-locking, that is, after the thrust of the horizontal cylinder 51 is cancelled, when the shell workpiece applies a downward thrust to the guide rod 3, the wedge block self-locks and does not move.

[0032] The angular floating assembly 4 includes a reaction force support block 41, a transition block 42, a floating block 43, a spherical washer 44, a height-equalizing bolt 45, a gasket 46, and an O-ring 47, wherein the reaction force support block 41 is used to abut against the housing workpiece.

[0033] The floating block 43 is connected to the guide rod 3 by a spherical washer 44 at the bottom, and then connected to the guide rod 3 by an O-ring 47, a gasket 46, and a height-equalizing bolt 45 at the top. The floating block 43 is connected by a spherical washer 44 for angular floating, and then the elastic function of the O-ring 47 is used to allow the floating block to reset, and the height-equalizing bolt 45 and the gasket 46 are used to press the O-ring 47 and then the floating block 43, so that the floating block 43 can return to its original state after tilting.

[0034] The reaction force support block 41 in the angular floating assembly can float angularly along with the floating block 43, and then adapt to the reaction force support surfaces such as the blank surface and the inclined surface of the shell workpiece to achieve zero-gap reaction force support of the workpiece.

[0035] The working process of the wedge reaction mechanism of the utility model is as follows:

[0036] First, the vertical cylinder is in the initial extended state, and the guide rod is in the retracted state. However, the vertical cylinder is lifted to the point where the angular floating assembly of the guide rod abuts against the reaction force support surface of the shell workpiece. Then the horizontal cylinder is extended and the wedge block presses the guide rod tightly. After that, the wedge block position is self-locked and the guide rod maintains the working position.

[0037] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An angular floating wedge reaction mechanism, characterized in that: It includes a vertical cylinder, a guide rod located in a guide seat, an angular floating assembly located at the top of the guide rod, and a wedge reaction assembly matched with the guide rod. The wedge block reaction force assembly comprises a horizontal cylinder arranged horizontally and a wedge block driven by the horizontal cylinder, wherein the top surface of the wedge block is a self-locking inclined surface. The cylinder rod of the vertical cylinder extends downward and a floating connection seat is provided at its end. The guide rod is arranged vertically and its bottom end is connected to the floating connection seat. Wherein, a groove is provided on the guide rod, and when the guide rod is supported in place, it floats and presses the shell workpiece, and when the wedge block moves into place, its top surface abuts against the top surface of the groove and self-locks.

2. The angular floating wedge reaction mechanism according to claim 1, characterized in that: The guide rod is provided with left-right symmetrical grooves, the wedge block has a central groove, and the top surfaces of the wedge block located on both sides of the central groove are self-locking inclined surfaces matched with the top surfaces of the left and right grooves.

3. The angular floating wedge reaction mechanism according to claim 1, characterized in that: The bevel angle of the self-locking bevel is 3°-8°.

4. The angular floating wedge reaction mechanism according to claim 1, characterized in that: A floating joint is provided at the end of the cylinder rod of the horizontal cylinder, and the wedge block is connected to the floating joint.

5. The angular floating wedge reaction mechanism according to claim 1, characterized in that: The floating connection seat comprises a mounting shaft connected to the end of the cylinder rod, a floating cross bar sleeved on the mounting shaft, and a compression spring biasing the floating cross bar, wherein the floating cross bar is fixedly connected to the bottom end of the guide rod.

6. The angular floating wedge reaction mechanism according to claim 1, characterized in that: The wedge block reaction force assembly includes a reaction force support block, a floating block, a spherical washer, a contour bolt, and an O-ring, wherein the reaction force support block is used to cooperate with the reaction force support surface of the shell workpiece, the reaction force support block is transitionally connected to the top of the floating block, the lower end of the floating block is supported on the top of the guide rod through the spherical washer, and the contour bolt is used to press the O-ring onto the floating block.

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