CN209206800U - The welding auxiliary mould of trailer axle - Google Patents

Abstract

Auxiliary tooling for welding of trailer axles, including a frame, on which two first sliding seats and two second sliding seats are arranged, a first drive mechanism for driving the movement of the two first sliding seats, and a The second driving mechanism for the movement of the sliding seat; two shaft positioning seats, the top of which is provided with positioning grooves; two clamping positioning components, the clamping positioning components include a fixed frame, a positioning block, and The clamping mechanism for clamping the leaf spring seat and the driving unit for driving the clamping mechanism to move up and down, the clamping mechanism includes a mounting seat, two first limit blocks respectively arranged at both ends of the mounting seat, Two second limiting blocks on both sides of the seat and protruding from the lower surface of the mounting seat, and two elastic pieces, the two elastic pieces are respectively arranged on the inner sides of the two first limiting blocks. The utility model simplifies the structure of the welding auxiliary tooling and the operation of clamping and positioning, and improves the assembly precision of the trailer axle while improving the welding efficiency.

Description

Welding auxiliary tooling for trailer axles

technical field

The utility model relates to the technical field of trailer axle processing, in particular to an auxiliary welding tool for trailer axles.

Background technique

During the processing of the trailer axle, it is usually necessary to weld accessories on the axle tube to meet the requirements of vehicle assembly. For example, in order to adapt to the installation of the suspension, it is usually necessary to weld the leaf spring seat and the axle seat on the axle tube. When welding, it is necessary to use The positioning mechanism performs clamping and positioning on the trailer axle, leaf spring seat and axle seat; however, the existing welding auxiliary tooling for clamping and positioning has a complex structure and is not convenient enough to operate.

Utility model content

Aiming at the deficiencies of the prior art, the purpose of this utility model is to provide an auxiliary welding tool for trailer axles with convenient operation and simple structure.

In order to achieve the above object, the utility model adopts the following technical solutions:

Welding aids for trailer axles, including:

The frame is provided with two first sliding seats and two second sliding seats that can slide along the long direction of the frame, and the two first sliding seats are located between the two second sliding seats. A first driving mechanism for driving the two first sliding seats to move toward or away from each other at the same time, and a second driving mechanism for driving the two second sliding seats to move toward or move away from each other at the same time;

The two shaft positioning seats are respectively fixed on the two second sliding seats, and the top of the shaft positioning seat is provided with a positioning groove for receiving the end of the shaft tube to position the shaft tube;

Two clamping and positioning assemblies respectively installed on the two first sliding seats, the clamping and positioning assemblies include a fixed frame fixedly connected to the first sliding seats, and a positioning block fixed on the fixed frame for placing and positioning the shaft seat , a clamping mechanism located above the positioning block for clamping the leaf spring seat, and a drive unit for driving the clamping mechanism to move up and down, the clamping mechanism includes mounting seats, which are respectively arranged at both ends of the mounting seat and protrude from the mounting seat Two first limit blocks on the lower surface, two second limit blocks respectively arranged on both sides of the mounting base and protruding from the lower surface of the mounting base, and two elastic pieces, the two elastic pieces are respectively arranged on the two first limit blocks. inside of the bit block.

The first drive mechanism includes two transmission screw rods whose extension direction is consistent with the length direction of the frame, two screw nuts respectively sleeved on the two transmission screw rods, a connecting rod connected between the two transmission screw rods, As well as the rotating handle installed on one of the transmission screw rods, the two screw rod nuts are respectively fixedly connected to the two first slide seats, and the screw threads on the two transmission screw rods have opposite directions of rotation.

The second drive mechanism includes two longitudinal beams, two racks fixedly connected to the two longitudinal beams and extending along the length direction of the frame, and two racks arranged between the two racks and respectively engaged with the two racks on both sides. gears, and a driving cylinder, the cylinder body of which is fixed on the frame, its telescoping rod extends along the length direction of the frame and is fixed on one of the longitudinal beams, and the two longitudinal beams are respectively fixedly connected with the two second sliding seats .

Both sides of the frame are respectively provided with linear guide rails extending along its length direction, and the sides of the first sliding seat and the second sliding seat are slidably installed on the linear guide rails through sliders.

The protruding part on the positioning block is provided with a limit pin for positioning the shaft seat.

The welding auxiliary tooling also includes two bases respectively located at two ends of the frame, and two swing arms, one end of the two swing arms is respectively fixedly connected to the two ends of the frame, and the other ends of the two swing arms are respectively pivotally connected to the two ends of the frame. On the base, and one of the bases is provided with a drive motor for driving the swing arm connected to the base to rotate.

A positioning pin extending along the length direction of the frame is also arranged on one of the shaft positioning seats.

The beneficial effects of the utility model are:

Compared with the prior art, the utility model positions the shaft tube, the shaft seat and the leaf spring seat, and after positioning, presses the leaf spring seat so that the leaf spring seat and the shaft seat can cooperate well with the shaft seat , to form a better welding position, thereby simplifying the structure of the welding auxiliary tooling and the operation of clamping and positioning, and improving the assembly accuracy of the trailer axle while improving the welding efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model

Fig. 2 is the structural representation of frame among Fig. 1;

Fig. 3 is a schematic structural diagram of the clamping and positioning assembly in Fig. 1;

Figure 4 is an enlarged view at Figure 1A;

Fig. 5 is a schematic structural view of the clamping mechanism in Fig. 4;

Fig. 6 is a schematic structural view of the shaft positioning seat in Fig. 1 .

Detailed ways

Below, in conjunction with accompanying drawing and specific embodiment, the utility model is further described:

As shown in Figures 1, 2, and 6, it is a welding auxiliary tool for a trailer axle of the present invention, which is used for clamping and positioning the axle tube 90, the axle seat 92 and the leaf spring seat 91, so that the axle seat 92, leaf spring seat 91 is welded on the axle tube 90. The welding auxiliary tooling of the present utility model includes a frame 10, two shaft positioning seats 20 and two clamping and positioning assemblies 30, wherein the frame 10 is a frame structure in a long direction, and two first sliding seats are arranged on it 101 and two second sliding seats 102, the two first sliding seats 101 and the two second sliding seats 102 can slide along the length direction of the frame 10, and the two second sliding seats 102 are oppositely arranged on the frame 10 At both ends, the two first sliding seats 101 are also oppositely arranged and are all located between the two second sliding seats 102. The frame 10 is also provided with a first driving mechanism and a second driving mechanism. The first driving mechanism is used to drive The two first sliding seats 101 move along the length direction of the frame 10, so that the two first sliding seats 101 move toward each other at the same time, or move toward each other at the same time, and the second driving mechanism is used to drive The two second sliding seats 102 move along the length direction of the frame 10 , so that the two second sliding seats 102 move toward each other at the same time, or move toward each other at the same time. The two shaft positioning seats 20 are respectively fixedly connected to the two second slide seats 102. The two shaft positioning seats 20 are arranged opposite to each other, and the tops of the two shaft positioning seats 20 are provided with a positioning groove 21, which is used to accommodate The end of the shaft tube 90 is used to position the shaft tube 90. Specifically, the positioning groove 21 can be set in a V shape, and the two ends of the shaft tube 90 are respectively placed in the positioning grooves on the top of the two-axis positioning seat 20. 21, the V-shaped positioning groove 21 can center the shaft tube 90, and drive the second sliding seat 102 to move through the first driving mechanism, and the shaft positioning seat 20 moves with the second sliding seat 102 to adapt to the shaft The length of the tube 90 is such that the end of the shaft tube 90 can fall into the positioning groove 21 . As shown in Figures 3, 4, and 5, the two clamping and positioning assemblies 30 are installed on the two first sliding seats 101 respectively, and the clamping and positioning assemblies include a fixed frame 31, a positioning block 32, and a clamping mechanism 33 driving unit, wherein, The fixed frame 31 is fixedly connected on the first sliding seat 101, the fixed frame 31 can be arranged as a substantially C-shaped structure, and the positioning block 32 is fixed on the lower part of the C-shaped opening of the fixed frame 31, and the positioning block 32 is used for Place the shaft seat 92, and after the shaft seat 92 is placed, it is used to limit the degree of freedom of the shaft seat 92 in the length direction and width direction of the frame 10, so as to position the shaft seat 92, and a clamping device is arranged above the positioning block 32 Mechanism 33, the clamping mechanism 33 is arranged on the top of the C-shaped opening of the fixed mount 31, that is, the clamping mechanism 33 and the positioning block 32 are respectively arranged on the upper and lower sides of the C-shaped opening of the fixed mount 31, the clamping mechanism 33 has the degree of freedom of moving up and down, and its up and down movement is then driven by the above-mentioned drive unit, and this drive unit is a cylinder 34, and its cylinder part is connected on the top of fixed mount 31, certainly, this drive unit also can be An oil cylinder or other mechanisms that can drive the clamping mechanism 33 to move. The clamping mechanism 33 is used to clamp the leaf spring seat 91. After the leaf spring seat 91 is clamped, the drive unit 34 drives the clamping mechanism 33 to move down, and the leaf spring seat 91 is pressed on the shaft tube 90. Specifically, The clamping mechanism 33 includes a mounting base 330, two first limiting blocks 331, two second limiting blocks 332 and two elastic pieces 333, wherein the mounting base 330 is a cuboid structure, and the two first limiting blocks 331 They are respectively fixed at both ends of the mounting base 330, and the two first limiting blocks 331 have parts protruding from the lower surface of the mounting base 330, and the two second limiting blocks 332 are respectively fixed on both sides of the mounting base 330 and have The part protruding from the lower surface of the mounting seat 330, the two elastic pieces 333 are respectively arranged on the inner sides of the two first stop blocks 331, so that when the leaf spring seat 91 is clamped, the first stop block 331 and the second stop block The block 332 limits the position of the leaf spring seat 91, and clamps the leaf spring seat 91 by the elastic piece 333. Under the drive of the cylinder 34, the leaf spring seat 91 is moved closer to the shaft tube 90 from top to bottom, and the leaf spring seat 91 is compressed on the axle tube 90.

When the utility model is in use, the positions of the two first sliding seats 101 are first adjusted according to the predetermined positions, so that the two clamping and positioning assemblies 30 are in the predetermined positions, and the two shaft seats 91 are respectively placed on the two clamping and positioning assemblies 30. On the positioning block 32 of the shaft tube 90, adjust the positions of the two second sliding seats 102 according to the length of the shaft tube 90, so that the distance between the two-axis positioning seats 20 adapts to the length of the shaft tube 90, and place the two ends of the shaft tube 90 on the two shafts. After the positioning seat 20 is mounted, the shaft seat 91 is brought into contact with the surface of the shaft tube 90, and then the two leaf spring seats 92 are respectively clamped on the clamping mechanisms 33 of the two clamping and positioning assemblies 30, and the cylinder 34 is activated to make the leaf spring seats 92 is in contact with the surface of the shaft tube 90, and is compressed by the cylinder 34, so that the shaft seat 91 and the leaf spring seat 92 are fully contacted with the surface of the shaft tube 90, yet utilize a welding machine to weld the contacted parts.

Referring to Fig. 1, shown in 2, in the preferred embodiment of the present utility model, the both sides of frame 10 are respectively provided with the linear guide rail 103 that extends along its lengthwise direction, the first sliding seat 101 and the second sliding seat 102 both It is a plate-shaped structure, and the sides of the two are respectively installed on the linear guide rail 103 through sliders, so that the first sliding seat 101 and the second sliding seat 102 have a degree of freedom to move in the longitudinal direction of the frame 10, of course, also A guide rod extending along the length direction of the frame 10 may be installed on the frame 10, and the first sliding seat 101 and the second sliding seat 102 are slidably sleeved on the guide rod. The first driving mechanism comprises two transmission screw rods 108, two screw rod nuts and a connecting rod 110, and the two screw rod nuts are respectively fixed on the two first slide seats 101, and the two transmission screw rods 108 are connected to the two wire rods respectively. In the rod nut, the two ends of the connecting rod 110 are respectively connected with the two driving screw rods 108, that is, when one of the driving screw rods 108 is rotated, the connecting rod 110 and the other driving screw rod 108 also rotate thereupon, and the two driving screw rods 108 The direction of rotation of the threads is opposite, so that when the two transmission screw mandrels 108 rotate in the same direction, the screw mandrel nuts on the two can approach or move away from each other, so that the two first sliding seats 101 are driven to move; in order to facilitate adjustment A rotary handle 109 is also installed on one of the transmission screw mandrels 108. Of course, in order to improve the degree of automation, a motor can be used to drive the transmission screw mandrel 108 to rotate. The second driving mechanism comprises two longitudinal beams 104, two tooth racks 105, a gear 106 and a driving cylinder 111. The two longitudinal beams 104 extend along the length direction of the frame 10, and the two tooth racks 105 are respectively fixed on the two longitudinal beams 104. Above, the gear 106 is pivotally connected on the frame 10 through the rotating shaft, and the gear 106 is placed between the two racks 105, the two sides of the gear 106 mesh with the two racks 105 respectively, and the cylinder body of the driving cylinder 111 is fixed on the frame 10 The telescopic rod extends along the length direction of the frame 10 and is connected to one of the longitudinal beams 104, and the two longitudinal beams 104 are fixedly connected to the two second sliding seats 102 through a connecting beam 107 respectively. In this way, the drive cylinder 111 is activated to push one of the longitudinal beams 104 to move along the length direction of the frame 10, and under the action of the gear 106 and the rack 105, the two second sliding seats 102 are moved toward each other or are moved away from each other at the same time. direction movement.

Referring to Fig. 3, in another preferred embodiment of the present utility model, a limit pin 321 is also provided on the positioning block 32, and after the shaft seat 91 is placed on the positioning block 32, the limit pin 321 is inserted into the hole of the shaft seat 91 Among them, the displacement of the shaft seat 91 is limited, so that the shaft seat 91 is positioned. Of course, the positioning of the shaft seat 91 on the positioning block 32 can also be other structures, for example, the surface of the positioning block 32 can be set to match the shaft seat 91 The concave position, so that the shaft seat 91 is embedded in the concave position to achieve positioning.

In addition, as shown in FIG. 6 , a positioning pin 22 is fixed on one of the shaft positioning seats 20 . After the shaft tube 90 is placed on the shaft positioning seat 20 , the positioning pin 22 passes through the shaft tube 90 and is welded. In the through hole on the fixed brake base plate 93, the freedom of rotation of the shaft tube 90 around its central axis is limited, thereby further improving the welding precision, so that the shaft seat 91 and the leaf spring seat 92 are consistent with the preset angle after welding.

In order to facilitate subsequent welding requirements, the frame 10 of the present invention is configured as a swingable structure. Specifically, the welding auxiliary tooling of the present invention also includes two bases 40, two swing arms 41 and a drive motor 42. Wherein the two bases 40 are respectively located at the two ends of the frame 10, and the two swing arms 41 are respectively connected between the two ends of the frame 10 and the two bases 40, specifically, the bottom ends of the two swing arms 41 are fixedly connected At both ends of the frame 10, the tops are respectively pivoted on the two bases 40, and the pivoting axes of rotation coincide. The driving motor 42 is installed on one of the bases 40, and it is used to drive the two bases 40. The swing arm 41 rotates, and the drive motor 42 is started, so that the frame 10 can be rotated around the rotation axis of the swing arm 41, and then the above-mentioned shaft seat 91, leaf spring seat 92 and shaft tube 90 are rotated at different angles, thereby facilitating Weld the mating parts.

The above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be applied to the foregoing embodiments. The technical solutions recorded in the examples are modified, or some technical features are replaced equivalently, and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (7)

1. the welding auxiliary mould of trailer axle characterized by comprising

Rack, is provided with two first slides and two second slides that can be slided along rack length direction in the rack, and two first Slide is respectively positioned between two second slides, be additionally provided in rack for drive two first slides simultaneously towards it is close to each other or that First driving mechanism of this separate direction movement and for driving two second slides simultaneously towards leaning on each other or away from each other Direction movement the second driving mechanism；

Two axis positioning seats, are separately fixed in two second slides, and the end for storing central siphon is provided at the top of axis positioning seat Positioning groove of the portion to be positioned to central siphon；

Two clamping position components being separately mounted in two first slides, the clamping position component include being fixedly connected on first Fixed frame on slide is fixed on fixed frame for placing and the locating piece of locating axle seat, being used to press from both sides above locating piece Hold spring block clamping device and for drive clamping device move up and down driving unit, clamping device include mounting base, It is separately positioned on mounting base both ends and protrudes from two the first limited blocks of mounting base lower surface, is separately positioned on mounting base two sides And two the second limited blocks and two elastic slices of mounting base lower surface are protruded from, which is separately positioned on two first limits The inside of position block.

2. the welding auxiliary mould of trailer axle as described in claim 1, which is characterized in that the first driving mechanism includes two and prolongs Stretch the consistent drive lead screw of length direction in direction and rack, two feed screw nuts being respectively sleeved on two drive lead screw, The connecting rod being connected between two drive lead screws and the rotating handle being installed therein on a drive lead screw, two feed screw nuts It is respectively fixedly connected in two first slides, and the screw thread on two drive lead screws is oppositely oriented.

3. the welding auxiliary mould of trailer axle as described in claim 1, which is characterized in that the second driving mechanism includes two vertical Beam, two be respectively fixedly connected on two stringers and extend along the length of the rack rack gears, be arranged between two rack gears and Two sides are respectively with the two rack gears meshed gears and driving cylinder, and the cylinder body of the driving cylinder is fixed on the rack, it is flexible Bar extends along the length direction of rack and is fixed therein on a stringer, and two stringers are fixed with two second slides respectively to be connected It connects.

4. the welding auxiliary mould of trailer axle as described in any one of claims 1-3, which is characterized in that in the two sides of rack point It is not provided with the linear guide extended along its length, the installation that the side of first slide and second slide is slided by sliding block In linear guide.

5. the welding auxiliary mould of trailer axle as described in claim 1, which is characterized in that the setting that locating piece protrudes above is useful In the spacer pin of locating axle seat.

6. the welding auxiliary mould of trailer axle as described in claim 1, which is characterized in that the welding auxiliary mould further includes two A pedestal for being located at rack both ends and two swing arms, one end of two swing arms are respectively fixedly connected at the both ends of rack, The other end of two swing arms is articulated in respectively on two pedestals, and is provided on one of pedestal and is connect for driving with the pedestal The driving motor of swing arm rotation.

7. the welding auxiliary mould of trailer axle as described in claim 1, which is characterized in that wherein on an axis positioning seat also It is provided with a positioning pin extended along the length of the rack.