CN210306471U

CN210306471U - Gearbox welding jig

Info

Publication number: CN210306471U
Application number: CN201921186850.XU
Authority: CN
Inventors: 周世华; 乐春明
Original assignee: Hubei Yanshida Gearbox Co ltd
Current assignee: Hubei Yanshida Gearbox Co ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2020-04-14
Anticipated expiration: 2029-07-26

Abstract

The utility model provides a gearbox welding fixture, which comprises a fixture bottom plate, a fixing bolt and a crosshead shoe; a supporting table A is vertically and upwards arranged at the right end corner of the top plane of the clamp bottom plate; the upper end of the support platform A is connected with an air cylinder mounting seat through two groups of crisscross tenon blocks; the rear end of the top plane of the clamp bottom plate is vertically and upwards provided with a supporting table B, a concave table at the right end of the supporting table B is also joggled with a butt joint table through a tenon block, and the butt joint table is parallel to the cylinder mounting seat. The utility model discloses in because the tenon piece is rectangle column structure, and all outwards be provided with the wing platform of slope on the four corners edge of tenon piece, and the tongue-and-groove that the structure suited is seted up again to the corresponding position department on brace table A and the cylinder mount pad, after the tenon piece is taken out from the tongue-and-groove, the cylinder mount pad can with brace table A phase separation, convenient maintenance and the change to the wearing electric cylinder, avoid anchor clamps to need whole change after damaging, reduced the maintenance cost.

Description

Gearbox welding jig

Technical Field

The utility model belongs to the technical field of the gearbox is made, more specifically says, in particular to gearbox welding jig.

Background

The gearbox is an important part of the vehicle, and can change the transmission ratio and enlarge the torque and the rotating speed of a driving wheel. With the development of modern science and technology, the gearbox is also upgraded, and the control is more and more convenient from the original manual gearbox to the current stepless gearbox from the synchronizer-free gearbox to the synchronizer-containing gearbox. At present, the engineering machinery widely adopts a diesel engine, the torque and rotating speed change range of the diesel engine is small, the requirements of a vehicle on traction force and running speed under various working conditions cannot be met, and a gearbox is required to solve the contradiction. The quality of the performance of the gearbox is the key for measuring the dynamic property, the economical efficiency and the drivability of the engineering machinery. The current speed change systems mainly comprise: mechanical transmission, hydraulic transmission, hydrostatic transmission. The gearbox has manual gear shifting and power gear shifting, and the structure has a fixed shaft type and a planetary type.

The welding of gearbox shift fork is especially important in the welding manufacturing process of gearbox, but because the structure irregularity of gearbox shift fork is difficult centre gripping, and a gearbox support welding positioner who is particularly useful for special type vehicle as in patent application CN 201820493934.7. The welding positioning device comprises a supporting main shaft, a main shaft positioning adjusting mechanism and a gearbox support welding positioning adjusting mechanism. The welding positioning device is characterized in that a process reference main shaft is designed at the center of a driving wheel of a vehicle, a main shaft positioning adjusting mechanism is installed, the positioning size can be adjusted left and right, the main shaft positioning adjusting mechanism is convenient to install, the welding positioning device is installed at the center of the driving wheel, the main shaft is supported by using a uniform reference to perform positioning welding, the welding position of a vehicle body control mechanism is accurate, the welding process precision of the vehicle body control mechanism is accurate, the reference is uniform, the universality is high, the quality of welding positioning and the production efficiency of products are improved, and the welding positioning device is suitable for welding of various deformed vehicle bodies.

In actual welding process, because the gearbox shift fork of shifting causes the defective products to appear the probability unanimously and is in higher state because being difficult to stabilize the centre gripping, and at the in-process of centre gripping moreover, the anchor clamps of cylinder class easily damages at the centre gripping in-process that relapse, and when changing, often need change whole anchor clamps, and the maintenance cost is higher, and when the centre gripping, the centre gripping action realizes more loaded down with trivial details.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a gearbox welding jig to solve in actual welding process, because the gearbox shift fork is because being difficult to stabilize the centre gripping, cause the defective products probability unanimous to appear to be in higher state, and at the in-process of centre gripping, the anchor clamps of cylinder class easily damage in the centre gripping process that relapses, and when changing, often need change whole anchor clamps, and the maintenance cost is higher, and when the centre gripping, the more loaded down with trivial details problem is realized in the centre gripping action.

The utility model is achieved by the following concrete technical means:

a gearbox welding fixture comprises a fixture bottom plate, a support platform A, a cylinder mounting seat, a cross-connection electric cylinder, a piston rod, a mortise, a tenon block, a support platform B, a tongue platform, a horizontal sliding groove, a support platform C, a vertical sliding groove, a communicating groove, a cylinder stroke hole, a butt-joint platform, a cushion cylinder, a butt-joint through hole, a lifting electric cylinder, a gearbox shifting fork, a fixed arm, an adjusting hole, a chuck, a clamping plate, an inserting groove, a moment adjusting hole, a connecting screw rod, a tension spring, a clamping block, a fixed screw rod, a stopping block, a fixed bolt and a cross-shaped sliding;

a supporting table A is vertically and upwards arranged at the right end corner of the top plane of the clamp bottom plate; the upper end of the support platform A is connected with an air cylinder mounting seat through two groups of crisscross tenon blocks; a support table B is vertically and upwardly arranged at the rear end of the top plane of the clamp bottom plate, a butt joint table is also joggled on a concave table at the right end of the support table B through a tenon block, and the butt joint table is parallel to the cylinder mounting seat; a cross-connection electric cylinder is hung on the outer wall of the front end of the cylinder mounting seat; a cushion cylinder sheathed outside the piston rod is embedded in the butt joint through hole at the front end of the butt joint platform; a shaft sleeve on the gear shifting fork of the gearbox is connected on the piston rod in a penetrating manner;

the front end of the support platform B is horizontally provided with a tongue platform, and the tongue platform extends leftwards; the middle part of the front end plane of the tongue platform is transversely provided with a T-shaped horizontal chute; the rear end of the connecting screw rod is slidably connected in the horizontal sliding groove through a fixture block, the outer end of the connecting screw rod is connected in a torque adjusting hole formed in the middle of the clamping plate in a penetrating manner, and the connecting screw rod is fixed on the clamping plate through a nut; the right end of the clamping plate is provided with a fork-shaped slot which is just inserted on the piston rod, and the back of the slot is just tangent to the gear shifting fork of the gearbox;

the supporting platform C is vertically arranged on the clamp bottom plate positioned on the left side of the supporting platform B; a lifting electric cylinder is arranged at the upper end of the supporting table C in an inverted manner, and the movable end of the lifting electric cylinder is inserted into a cylinder stroke hole formed in the middle of the top plane of the supporting table C; the front side of the movable end of the lower end of the lifting electric cylinder is vertically and forwardly connected with a cross slide block, and the cross slide block can be just connected in the vertical sliding groove and the communicating groove in a sliding manner; the front end of the crosshead shoe is fixed in an adjusting hole which is horizontally tangent to the middle part of a fixed arm on the plane of the front end of the support table C through a fixed bolt; the right end of the fixed arm is rotatably connected with a chuck, and a fork opening of the gear shifting fork of the gearbox is just inserted into the chuck.

Furthermore, the tenon block is of a rectangular columnar structure, inclined fin platforms are outwards arranged on edges of four corners of the tenon block, and mortises with adaptive structures are formed in corresponding positions of the support platform A and the cylinder mounting seat.

Furthermore, a piston rod of the cross-connecting electric cylinder penetrates through the cylinder mounting seat, and the other end of the piston rod is just butted in a butt-joint through hole formed in the butt-joint platform.

Furthermore, a tension spring is sleeved on the connecting screw rod, and two ends of the tension spring are respectively fixed on the fixture block and the clamping plate.

Furthermore, the rear end of the clamping plate is vertically screwed with a fixing screw rod, and the rear end of the fixing screw rod is provided with a cuboid-shaped stop block which is abutted against the outer end of the horizontal sliding groove.

Furthermore, a T-shaped vertical sliding groove is vertically formed in the middle of the side wall of the front end of the supporting table C, and the rear end of the vertical sliding groove is communicated with the air cylinder stroke hole through a communicating groove.

Furthermore, a tenon block is vertically arranged at the joint of the cross sliding block and the plane of the inner end of the fixed arm, and one half of the tenon block is in tenon joint in the fixed arm.

Compared with the prior art, the utility model discloses following beneficial effect has:

because the tenon piece is the rectangle column structure, and all outwards be provided with the wing platform of slope on the four corners edge of tenon piece, and the tongue-and-groove that the structure suited is seted up again to corresponding position department on brace table A and the cylinder mount pad, when the tenon piece back of taking out from the tongue-and-groove, the cylinder mount pad can with brace table A phase separation, convenient maintenance and the change to the wearing electric cylinder, avoid anchor clamps to need whole change after damaging, reduced the maintenance cost.

Because the extension spring has been cup jointed on the connecting screw, the both ends of its extension spring are fixed respectively on fixture block and cardboard, can make the cardboard compress tightly to the rear end all the time through the extension spring, thereby make the cardboard can shift the shift fork centre gripping of gearbox on the piston rod, and the perpendicular spiro union in rear end of cardboard has clamping screw, the dog that its clamping screw's rear end was provided with the cuboid form supports the outer end at horizontal spout, through the adjusting distance of the adjustable cardboard of adjustment clamping screw, can be fast convenient carry out the centre gripping to the gearbox shift fork, gearbox shift fork has been overcome because the irregular fixed problem that is difficult to of structure.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic view of the top left front axial view structure of the present invention.

Fig. 2 is a schematic view of the right rear upper side of the present invention.

Fig. 3 is a schematic structural view of the support table a and the cylinder mount of the present invention in a separated state.

Fig. 4 is the utility model discloses a gearbox shift fork is got rid of state axle and is looked the structure sketch map.

Fig. 5 is an axial view of the clamping plate of the present invention.

Fig. 6 is an axial view structure diagram of the fixing arm and the lifting electric cylinder of the present invention.

Fig. 7 is a schematic structural diagram of the separated state of the fixed arm and the lifting electric cylinder part of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a clamp base plate; 2. a support table A; 3. a cylinder mounting seat; 4. the electric cylinder is connected in a penetrating way; 401. a piston rod; 5. mortises; 6. a tenon block; 7. a support table B; 701. a tongue platform; 702. a horizontal chute; 8. a support table C; 801. a vertical chute; 802. a communicating groove; 803. a cylinder stroke bore; 9. a docking station; 901. a cushion cylinder; 902. butting the through holes; 10. a lifting electric cylinder; 11. a gearbox gear shifting fork; 12. a fixed arm; 1201. an adjustment hole; 1202. a chuck; 13. clamping a plate; 1301. a slot; 1302. a torque adjustment hole; 14. connecting a screw rod; 1401. a tension spring; 1402. a clamping block; 15. fixing the screw rod; 1501. a stopper; 16. fixing the bolt; 1601. a crosshead shoe.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 7:

the utility model provides a gearbox welding jig, including anchor clamps bottom plate 1, a supporting bench A2, cylinder mount pad 3, cross-under electric cylinder 4, piston rod 401, tongue groove 5, tenon piece 6, a supporting bench B7, tongue platform 701, horizontal spout 702, a supporting bench C8, vertical spout 801, intercommunication groove 802, cylinder stroke hole 803, butt joint platform 9, pad section of thick bamboo 901, butt joint through-hole 902, lift electric cylinder 10, gearbox shift fork 11, fixed arm 12, adjustment hole 1201, chuck 1202, cardboard 13, slot 1301, moment adjustment hole 1302, connecting screw 14, extension spring 1401, fixture block 1402, clamping screw 15, dog 1501, fixing bolt 16 and cross slider 1601;

a supporting table A2 is vertically and upwards arranged at the right end corner of the top plane of the clamp bottom plate 1; the upper end of the supporting platform A2 is connected with a cylinder mounting seat 3 through two groups of crisscross tenon blocks 6; a supporting table B7 is vertically and upwardly arranged at the rear end of the top plane of the clamp bottom plate 1, a concave table at the right end of the supporting table B7 is also joggled with a butt joint table 9 through a tenon block 6, and the butt joint table 9 is parallel to the cylinder mounting seat 3; the outer wall of the front end of the cylinder mounting seat 3 is hung with a cross-connection electric cylinder 4; a pad cylinder 901 sheathed outside the piston rod 401 is embedded in a butt joint through hole 902 at the front end of the butt joint table 9; the shaft sleeve on the gear shifting fork 11 of the gearbox is connected to the piston rod 401 in a penetrating manner;

the front end of the supporting platform B7 is horizontally provided with a tongue platform 701, and the tongue platform 701 extends leftwards; a T-shaped horizontal sliding groove 702 is transversely formed in the middle of the front end plane of the tongue platform 701; the rear end of the connecting screw 14 is slidably connected in the horizontal sliding groove 702 through a fixture block 1402, the outer end of the connecting screw 14 is connected in a torque adjusting hole 1302 formed in the middle of the clamping plate 13 in a penetrating manner, and the connecting screw 14 is fixed on the clamping plate 13 through a nut; a fork-shaped slot 1301 is formed in the right end of the clamping plate 13, the slot 1301 is just inserted into the piston rod 401, and the back of the slot 1301 is just tangent to the gearbox shifting fork 11;

the supporting table C8 is vertically arranged on the clamp bottom plate 1 positioned at the left side of the supporting table B7; the upper end of the supporting table C8 is inversely provided with a lifting electric cylinder 10, and the movable end of the lifting electric cylinder 10 is inserted into a cylinder stroke hole 803 formed in the middle of the top plane of the supporting table C8; a cross sliding block 1601 is vertically and forwardly connected to the front side of the movable end at the lower end of the lifting electric cylinder 10, and the cross sliding block 1601 can be just connected to the vertical sliding groove 801 and the communicating groove 802 in a sliding manner; the front end of the crosshead 1601 is fixed in an adjusting hole 1201 formed in the middle of a fixing arm 12 horizontally tangent to the plane of the front end of the support table C8 through a fixing bolt 16; the right end of the fixed arm 12 is rotatably connected with a chuck 1202, and a fork opening of the gearbox shifting fork 11 is just inserted into the chuck 1202.

Wherein, tenon piece 6 is the rectangle columnar structure, and all outwards is provided with the wing platform of slope on the four corners arris of tenon piece 6, and the tongue-and-groove 5 that the structure suited has been seted up again to corresponding position department on brace table A2 and the cylinder mount pad 3, takes out the back when tenon piece 6 from tongue-and-groove 5, and cylinder mount pad 3 can be separated with brace table A2, makes things convenient for maintenance and the change to penetrating electric cylinder 4.

The piston rod 401 of the cross-connecting electric cylinder 4 penetrates through the cylinder mounting seat 3, the other end of the piston rod 401 is just butted in a butt joint through hole 902 formed in the butt joint platform 9, the gear shifting fork 11 of the gearbox can be fast sleeved on the piston rod 401, and the gear shifting fork 11 of the gearbox is prevented from moving in the clamping process.

Wherein, the extension spring 1401 is sleeved on the connecting screw rod 14, two ends of the extension spring 1401 are respectively fixed on the fixture block 1402 and the clamping plate 13, and the clamping plate 13 can be pressed towards the rear end all the time through the extension spring 1401, so that the clamping plate 13 can clamp the gear shifting fork 11 of the gearbox on the piston rod 401.

The rear end of the clamping plate 13 is vertically screwed with a fixing screw 15, the rear end of the fixing screw 15 is provided with a cuboid-shaped stop 1501, the stop 1501 abuts against the outer end of the horizontal sliding groove 702, and the adjusting distance of the clamping plate 13 can be adjusted by adjusting the fixing screw 15.

A T-shaped vertical sliding groove 801 is vertically formed in the middle of the side wall of the front end of the support platform C8, and the rear end of the vertical sliding groove 801 is communicated with the cylinder stroke hole 803 through a communicating groove 802, so that the cross slider 1601 can move up and down under the pushing of the lifting electric cylinder 10, and the purpose of adjusting the up-and-down position of the fixed arm 12 is achieved.

A tenon block 6 is vertically arranged at the plane joint of the cross sliding block 1601 and the inner end of the fixed arm 12, and a half of the tenon block 6 is joggled in the fixed arm 12, so that the fixed arm 12 can be always kept in a state of being perpendicular to the supporting table C8.

The specific use mode and function of the embodiment are as follows:

when the gearbox shifting fork is used, a piston rod 401 penetrating through an electric cylinder 4 is contracted, a gearbox shifting fork 11 is sleeved on the piston rod 401, the piston rod 401 is in butt joint with a butt joint through hole 902 on a butt joint table 9, a tension spring 1401 is sleeved on a connecting screw rod 14, two ends of the tension spring 1401 are respectively fixed on a clamping block 1402 and a clamping plate 13, the clamping plate 13 can be pressed towards the rear end all the time through the tension spring 1401, so that the clamping plate 13 can clamp the gearbox shifting fork 11 on the piston rod 401, the rear end of the clamping plate 13 is vertically screwed with a fixing screw rod 15, the rear end of the fixing screw rod 15 is provided with a cuboid-shaped stop block 1501 which abuts against the outer end of a horizontal sliding groove 702, and the adjusting distance of the clamping plate 13 can;

and the fork mouth of gearbox shift fork 11 is pegged graft on chuck 1202, when the position of needs adjustment fixed arm 12, the position about accessible fixing bolt 16 adjusts, when the position distance about needs adjustment, and accessible lift electric cylinder 10 adjusts.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. The utility model provides a gearbox welding jig which characterized in that: the gearbox welding clamp comprises a clamp bottom plate (1), a support table A (2), a cylinder mounting seat (3), a cross-connecting electric cylinder (4), a piston rod (401), a mortise (5), a tenon block (6), a support table B (7), a tongue table (701), a horizontal sliding groove (702), a support table C (8), a vertical sliding groove (801), a communicating groove (802), a cylinder stroke hole (803), a butt joint table (9), a cushion cylinder (901), a butt joint through hole (902), a lifting electric cylinder (10), a gearbox gear shifting fork (11), a fixed arm (12), an adjusting hole (1201), a chuck (1202), a chuck plate (13), a slot (1301), a moment adjusting hole (1302), a connecting screw (14), a tension spring (1401), a fixture block (1402), a fixed screw (15), a stop block (1501), a fixing bolt (16) and a cross slider (1601);

a support table A (2) is vertically and upwardly arranged at the right end corner of the top plane of the clamp bottom plate (1); the upper end of the supporting table A (2) is connected with a cylinder mounting seat (3) through two groups of crisscross tenon blocks (6); a supporting table B (7) is vertically and upwardly arranged at the rear end of the top plane of the clamp bottom plate (1), a concave table at the right end of the supporting table B (7) is also joggled with a butt joint table (9) through a tenon block (6), and the butt joint table (9) is parallel to the cylinder mounting seat (3); the outer wall of the front end of the cylinder mounting seat (3) is hung with a cross-connection electric cylinder (4); a pad cylinder (901) which is sleeved outside the piston rod (401) is embedded in a butt joint through hole (902) at the front end of the butt joint table (9); the shaft sleeve on the gear shifting fork (11) of the gearbox is connected to the piston rod (401) in a penetrating manner;

the front end of the support platform B (7) is horizontally provided with a tongue platform (701), and the tongue platform (701) extends leftwards; the middle part of the front end plane of the tongue platform (701) is transversely provided with a T-shaped horizontal sliding chute (702); the rear end of the connecting screw rod (14) is slidably connected in the horizontal sliding groove (702) through a clamping block (1402), the outer end of the connecting screw rod (14) is connected in a torque adjusting hole (1302) formed in the middle of the clamping plate (13) in a penetrating mode, and the connecting screw rod (14) is fixed on the clamping plate (13) through a nut; a fork-shaped slot (1301) is formed in the right end of the clamping plate (13), the slot (1301) is just inserted into the piston rod (401), and the back of the slot (1301) is just tangent to the gear shifting fork (11) of the gearbox;

the supporting platform C (8) is vertically arranged on the clamp bottom plate (1) on the left side of the supporting platform B (7); the upper end of the supporting table C (8) is inversely provided with a lifting electric cylinder (10), and the movable end of the lifting electric cylinder (10) is inserted into a cylinder stroke hole (803) formed in the middle of the top plane of the supporting table C (8); the front side of the movable end of the lower end of the lifting electric cylinder (10) is vertically and forwardly connected with a cross sliding block (1601), and the cross sliding block (1601) can be just connected into the vertical sliding groove (801) and the communicating groove (802) in a sliding manner; the front end of the crosshead shoe (1601) is fixed in an adjusting hole (1201) formed in the middle of a fixing arm (12) which is horizontally tangent to the plane of the front end of the support table C (8) through a fixing bolt (16); the right end of the fixed arm (12) is rotatably connected with a chuck (1202), and a fork opening of the gearbox gear shifting fork (11) is just inserted into the chuck (1202).

2. The transmission welding fixture of claim 1, wherein: the tenon block (6) is of a rectangular columnar structure, inclined fin platforms are outwards arranged on edges of four corners of the tenon block (6), and tenon grooves (5) with matched structures are formed in corresponding positions on the support platform A (2) and the cylinder mounting seat (3).

3. The transmission welding fixture of claim 1, wherein: and a piston rod (401) of the cross-under electric cylinder (4) penetrates through the cylinder mounting seat (3), and the other end of the piston rod (401) is just butted in a butt joint through hole (902) formed in the butt joint platform (9).

4. The transmission welding fixture of claim 1, wherein: the connecting screw rod (14) is sleeved with a tension spring (1401), and two ends of the tension spring (1401) are respectively fixed on the clamping block (1402) and the clamping plate (13).

5. The transmission welding fixture of claim 1, wherein: the rear end of the clamping plate (13) is vertically screwed with a fixing screw rod (15), and the rear end of the fixing screw rod (15) is provided with a cuboid-shaped stop block (1501) which abuts against the outer end of the horizontal sliding groove (702).

6. The transmission welding fixture of claim 1, wherein: the middle part of the side wall of the front end of the support table C (8) is vertically provided with a T-shaped vertical sliding chute (801), and the rear end of the vertical sliding chute (801) is communicated with a cylinder stroke hole (803) through a communicating groove (802).

7. The transmission welding fixture of claim 1, wherein: a tenon block (6) is vertically arranged at the joint of the cross sliding block (1601) and the inner end plane of the fixed arm (12), and one half of the tenon block (6) is in tenon joint in the fixed arm (12).