CN217914160U

CN217914160U - Seesaw type front shaft main pin hole machining clamp

Info

Publication number: CN217914160U
Application number: CN202222381664.XU
Authority: CN
Inventors: 石习勇; 周发明; 任虎; 李伟; 籍旭东; 李春旭
Original assignee: Hubei Tri Ring Axle Co ltd
Current assignee: Hubei Tri Ring Axle Co ltd
Priority date: 2022-09-08
Filing date: 2022-09-08
Publication date: 2022-11-29
Anticipated expiration: 2032-09-08

Abstract

The utility model relates to a frock clamp technical field especially relates to a seesaw type front axle main pin hole adds clamping apparatus, and it includes the base, the centre of base is provided with the seesaw seat, the seesaw seat rotates through the pivot and is connected with the seesaw, the pivot with the seesaw is fixed, the pivot is fixed with the gear, the base is provided with the rack that is linear motion by cylinder drive, the gear with rack toothing, the both ends of seesaw respectively are provided with the mount pad of a centre gripping front axle, the both ends of base are provided with the conflict the seesaw is with the angle of replacement piece of restricting its turned angle, the base is in the outside of angle piece has set gradually and has compressed tightly the whereabouts closing device of seesaw and the clamping device that the front axle of perk prevents its vibration from both sides conflict. The utility model discloses a seesaw structure adjustment front axle's gesture, convenient and fast to can change corresponding size according to the inclination of different front axle both ends tup the angle piece.

Description

Seesaw type front shaft main pin hole machining clamp

Technical Field

The utility model relates to a frock clamp technical field especially relates to a seesaw formula front axle king pin hole adds clamping apparatus.

Background

Automobile front axle, the tup at its both ends and middle girder pass through the sloping connection, and the axis and the girder of both ends tup all form the contained angle, because the front axle is long rod type work piece, when machining, for the centre gripping is firm, the centre gripping point of anchor clamps generally all sets up on middle girder, just so causes both ends tup axis slope, the tup terminal surface also slopes promptly. However, when the end face of the hammer head and the main pin hole along the axis of the hammer head are machined, the axis of the hammer head is required to be adjusted to be parallel to the cutter bar, namely, the posture of the front shaft is required to be adjusted, so that the axis of the hammer head is positioned in the vertical direction, and the hammer head main pin hole at the other end needs to be readjusted when the hammer head main pin hole is machined, which wastes time and labor. What is needed is a clamp capable of rapidly clamping a front shaft, rapidly switching the posture of the front shaft and facilitating the processing of main pin holes at two ends.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art not enough, and provide a seesaw formula front axle king-pin hole adds clamping apparatus, its adoption is through seesaw formula anchor clamps to convenient and fast adjusts the front axle gesture, switches front axle both ends tup perk or whereabouts, makes its processing of being convenient for.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a seesaw formula front axle king-pin hole adds clamping apparatus, includes the base, the centre of base is provided with the seesaw seat, the seesaw seat rotates through the pivot and is connected with the seesaw, the pivot with the seesaw is fixed, the pivot is fixed with the gear, the base is provided with the rack that is linear motion by cylinder drive, the gear with rack toothing, the both ends of seesaw respectively are provided with the mount pad of a centre gripping front axle, the both ends of base are provided with the conflict the seesaw is with the angle piece of replacing of restricting its turned angle, the base is in the outside of angle piece has set gradually and has compressed tightly the whereabouts closing device of seesaw and the front axle of conflicting the perk from both sides prevent its clamping device that vibrates.

Furthermore, the mounting base comprises a support fixed on the seesaw and a first pressing plate base, the first pressing plate base is fixed with a first oil cylinder and is hinged with a first pressing plate through a first connecting rod, and the end part of a piston rod of the first oil cylinder is hinged with the tail part of the first pressing plate.

Furthermore, the pressing device comprises a second pressing plate seat fixed on the base, a second oil cylinder is fixed on the second pressing plate seat, a second pressing plate is hinged to the second pressing plate seat through a second connecting rod, and the end of a piston rod of the second oil cylinder is hinged to the tail of the second pressing plate.

Furthermore, the clamping device comprises a U-shaped frame fixed on the base, the U-shaped frame is provided with a third oil cylinder and a fourth oil cylinder facing the U-shaped groove, and a pressure head is fixed at the end part of a piston rod of the third oil cylinder and the end part of a piston rod of the fourth oil cylinder.

Furthermore, two ends of the seesaw seat are provided with buffer cylinders for reducing the impact force of the seesaw.

Furthermore, a graduated scale for checking whether the angle block is replaced by mistake is arranged on the side face of the seesaw, and a pointer corresponding to the graduated scale is arranged at the intersection line of the vertical face of the axis of the rotating shaft and the side face of the seesaw seat.

The beneficial effects of the utility model are that: the utility model provides a seesaw formula front axle king-pin hole adds clamping apparatus, its includes the base, the centre of base is provided with the seesaw seat, the seesaw seat rotates through the pivot and is connected with the seesaw, the pivot with the seesaw is fixed, the pivot is fixed with the gear, the base is provided with the rack that is linear motion by cylinder drive, the gear with rack toothing, the both ends of seesaw respectively are provided with the mount pad of a centre gripping front axle, the both ends of base are provided with the conflict the seesaw is with the angle piece of replacing of restricting its turned angle, the base is in the outside of angle piece has set gradually and has compressed tightly the whereabouts closing device of seesaw and the front axle of conflicting the perk from both sides prevent its clamping device that vibrates. The utility model discloses a seesaw structure adjustment front axle's gesture, convenient and fast to can change corresponding size according to the inclination of different front axle both ends tup angle piece.

Drawings

FIG. 1 is a front view of a seesaw type front axle main pin hole processing jig of the present invention;

FIG. 2 is a left-hand attitude view of FIG. 1;

FIG. 3 is an enlarged view of a portion of FIG. 2;

FIG. 4 is a cross-sectional view of FIG. 1;

fig. 5 is a schematic view of the structure of the clamping device.

Description of reference numerals:

1-base, 11-seesaw seat, 2-seesaw, 21-rotating shaft, 3-gear, 31-rack, 4-mounting seat, 41-support, 42-first press plate seat, 43-first oil cylinder, 44-first connecting rod, 45-first press plate, 5-angle block, 6-pressing device, 61-second press plate seat, 62-second oil cylinder, 63-second connecting rod, 64-second press plate, 7-clamping device, 71-U-shaped frame, 72-third oil cylinder, 73-fourth oil cylinder, 74-press head, 8-buffer cylinder, 9-graduated scale, 91-pointer.

Detailed Description

The following detailed description of the present invention is provided in connection with the accompanying drawings and the embodiments, and is not intended to limit the scope of the invention.

As shown in fig. 1-5, the seesaw type front axle main pin hole machining fixture of the embodiment comprises a base 1, a seesaw seat 11 is arranged in the middle of the base 1, the seesaw seat 11 is rotatably connected with a seesaw 2 through a rotating shaft 21, the rotating shaft 21 is fixed with the seesaw 2, a gear 3 is fixed on the rotating shaft 21, the base 1 is provided with a rack 31 which is driven by an oil cylinder to do linear motion, the gear 3 is meshed with the rack 31, two ends of the seesaw 2 are respectively provided with a mounting seat 4 for clamping the front axle, two ends of the base 1 are provided with replaceable angle blocks 5 which are abutted against the seesaw 2 to limit the rotating angle of the seesaw 2, and the outer side of each angle block 5 of the base 1 is sequentially provided with a pressing device 6 which is pressed against the seesaw 2 and a clamping device 7 which is prevented from the front axles tilted from two sides to vibrate.

The main pin holes at two ends of the front shaft are machined as an example, the clamp for clamping and conveniently adjusting the posture of the front shaft can be used for the front shaft and can also be used for other similar shaft and rod workpieces. During machining, the steel plate spring of the front shaft is placed on the mounting seat 4 and clamped tightly, then the rack 31 moves, the gear 3 which is meshed with the rack rotates to drive the seesaw 2 to rotate left or right, so that the hammer head at the right end or the left end of the front shaft is tilted, the angle block 5 limits the rotation angle of the seesaw 2, and the tilted hammer head axis of the front shaft is ensured to be vertical to a plane; because this embodiment passes through angle piece 5 restriction seesaw 2 rotation angle, so can adjust the front axle gesture fast accurately, improve the machining efficiency of front axle both ends king pin hole.

The seesaw 2 that falls compresses tightly through closing device 6, and the front axle that upwarps is unsettled, for preventing that it from influencing the machining precision when processing vibration, so, this embodiment sets up near the tup department at the front axle clamping device 7 contradicts the front axle from both sides.

This anchor clamps can adopt modular structure, through the fix with screw, each fixture's concrete structure as follows: the mounting seat 4 comprises a support 41 fixed on the seesaw 2 and a first pressing plate seat 42, the first pressing plate seat 42 is fixedly provided with a first oil cylinder 43 and is hinged with a first pressing plate 45 through a first connecting rod 44, and the end part of a piston rod of the first oil cylinder 43 is hinged with the tail part of the first pressing plate 45; the pressing device 6 comprises a second pressing plate seat 61 fixed on the base 1, a second oil cylinder 62 is fixed on the second pressing plate seat 61, a second pressing plate 64 is hinged to the second pressing plate seat through a second connecting rod 64, and the end part of a piston rod of the second oil cylinder 62 is hinged to the tail part of the second pressing plate 64; the clamping device 7 comprises a U-shaped frame 71 fixed on the base 1, the U-shaped frame 71 is provided with a third oil cylinder 72 and a fourth oil cylinder 73 facing the U-shaped groove, and pressure heads 74 are fixed at the end parts of piston rods of the third oil cylinder 72 and the fourth oil cylinder 73. The support 41 may be provided with a positioning pin, which is inserted into the steel plate spring seat mounting hole when the front axle is mounted.

Two ends of the seesaw seat 11 are provided with buffer cylinders 8 for reducing the impact force of the seesaw 2; the side surface of the seesaw 2 is provided with a graduated scale 9 for checking whether the angle block 5 is replaced by mistake, and a pointer 91 corresponding to the graduated scale 9 is arranged at the intersection line of the vertical surface of the axis of the rotating shaft 21 and the side surface of the seesaw seat 11. The graduated scale 9 and the pointer 91 can also be used as a scale for observing the rotation angle of the seesaw 2 at any time during operation, so that inaccuracy caused by abrasion of a clamp is prevented, and double insurance is realized.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a seesaw formula front axle king pin hole adds clamping apparatus which characterized in that: the base is included, the centre of base is provided with the seesaw seat, the seesaw seat rotates through the pivot and is connected with the seesaw, the pivot with the seesaw is fixed, the pivot is fixed with the gear, the base is provided with the rack of being linear motion by cylinder drive, the gear with rack toothing, the both ends of seesaw respectively are provided with the mount pad of a centre gripping front axle, the both ends of base are provided with the conflict the seesaw is with the angle of replacement piece of restricting its turned angle, the base is in the outside of angle piece has set gradually and has compressed tightly the whereabouts closing device of seesaw and the clamping device that the front axle of conflicting the perk from both sides prevented its vibration.

2. The seesaw type front shaft main pin hole machining clamp as claimed in claim 1, wherein: the mounting base comprises a support fixed on the seesaw and a first pressing plate base, the first pressing plate base is fixed with a first oil cylinder and is hinged with a first pressing plate through a first connecting rod, and the end part of a piston rod of the first oil cylinder is hinged with the tail part of the first pressing plate.

3. The seesaw type front shaft main pin hole machining clamp as claimed in claim 1, wherein: the pressing device comprises a second pressing plate seat fixed on the base, a second oil cylinder is fixed on the second pressing plate seat, a second pressing plate is hinged to the second pressing plate seat through a second connecting rod, and the end of a piston rod of the second oil cylinder is hinged to the tail of the second pressing plate.

4. The seesaw type front axle main pin hole machining clamp as claimed in claim 1, wherein: the clamping device comprises a U-shaped frame fixed on the base, the U-shaped frame is provided with a third oil cylinder and a fourth oil cylinder facing the U-shaped groove, and pressure heads are fixed at the end parts of piston rods of the third oil cylinder and the fourth oil cylinder.

5. The seesaw type front shaft main pin hole machining clamp as claimed in claim 1, wherein: and two ends of the seesaw seat are provided with buffer cylinders for reducing the impact force of the seesaw.

6. The seesaw type front axle main pin hole machining clamp as claimed in claim 1, wherein: and a graduated scale for checking whether the angle block is mistakenly replaced is arranged on the side surface of the seesaw, and a pointer corresponding to the graduated scale is arranged at the intersection line of the vertical surface of the axis of the rotating shaft and the side surface of the seesaw seat.