CN111390471A - Clamping device and clamping method for forming and welding of rail grinding wagon frame - Google Patents

Abstract

The invention discloses a clamping device and a clamping method for forming and welding a frame of a rail grinding vehicle, comprising a bottom frame, a plurality of safety beam clamping parts, a plurality of cross beam clamping parts, and a plurality of main beam clamping parts and a plurality of wheel-to-board clamping components; the plurality of safety beam clamping components are divided into a front safety beam clamping component group located at the front end of the chassis and a rear safety beam clamping component group located at the rear end of the chassis; a plurality of cross beams The clamping components are divided into front beam clamping component group, middle beam clamping component group and rear beam clamping component group from front to back; a plurality of main beam clamping components are longitudinally arranged in the middle of the chassis; wheel-to-plate The clamping parts are respectively arranged on the left and right sides between the front safety beam clamping part group and the front cross beam clamping part group and on the left and right sides between the rear safety beam clamping part group and the rear cross beam clamping part group. side. The advantages are that the labor intensity of operators is significantly reduced, the welding efficiency is significantly improved, and the requirements for dimensional accuracy and welding strength during welding can be ensured.

Description

A clamping device and clamping method for forming and welding a frame of a rail grinding vehicle

technical field

The invention relates to a clamping device for fixing a welding object during welding, in particular to a clamping device and a clamping method for forming and welding a frame of a rail grinding vehicle, belonging to the field of rail transit manufacturing tooling.

Background technique

In the field of rail transit, the welds of the newly laid rails need to be polished and smoothed by the grinding car before they can be opened to traffic; the rails that have been damaged by long-term operation, especially the wavy wear of the curved section, also need to be polished and repaired by the grinding car before continuing. run.

In the production process of the grinding car, there is a technological process of welding the pre-fabricated main parts into the whole frame. In the past, due to the slow development of rail transportation, the demand for grinding cars was very small, and the tools used for the forming and welding of the frame were It is relatively simple, usually using auxiliary tools such as workshop spreaders and simple support and clamping mechanisms for welding. The disadvantage of this welding is that the operator is labor-intensive and the production efficiency is low. More importantly, it is difficult to control the docking position and angle between parts and components during operation, and the cooling shrinkage after welding is difficult to control, etc., which directly affects the product quality. . With the rapid development of rail transportation, the application market of grinding cars has also expanded. Therefore, it has become an urgent problem to develop a clamping device for improving the welding efficiency and welding accuracy for the overall frame of the welding and grinding car.

SUMMARY OF THE INVENTION

The technical problems to be solved by the present invention are: when a simple support and hoisting equipment welds the main body parts of the grinding car into a whole frame, the labor intensity is high, the production efficiency is low, and the docking positions and angles between the parts are not easy to control during operation, resulting in The problem of poor welding accuracy.

In view of the above problems, the technical scheme proposed by the present invention is:

A clamping device for forming and welding a frame of a rail grinding vehicle, comprising a bottom frame, a plurality of safety beam clamping parts, a plurality of cross beam clamping parts, a plurality of main beam clamping parts and a plurality of wheel-to-plate clamping parts Parts; the plurality of safety beam clamping parts are divided into two groups, one group is the front safety beam clamping part group arranged at the front end of the chassis, and the other group is the rear safety beam clamping part group arranged at the rear end of the chassis , each group of safety beam clamping parts are arranged laterally on the left and right; the plurality of beam clamping parts are divided into three groups, all of which are arranged on the chassis between the front safety beam clamping part group and the rear safety beam clamping part group, The three groups of beam clamping parts are, from front to back, a front beam clamping part group, a middle beam clamping part group and a rear beam clamping part group, each group of beam clamping parts are arranged laterally from left to right; the plurality of main beam clamps The holding parts are longitudinally arranged in the middle of the chassis; there are four wheel-to-board clamping parts, which are respectively arranged on the left and right sides and the rear between the front safety beam clamping part group and the front cross beam clamping part group. The left and right sides between the safety beam clamping part group and the rear cross beam clamping part group.

Further, the safety beam clamping part includes a crank arm fixing member, a trapezoidal cushion groove, a one-way limit seat and a seat plate, and the crank arm fixing member, the trapezoidal cushion groove and the one-way stop seat are all fixed. On the first seat plate, the one-way limit seat is located in front of the crank arm fixing member, and the trapezoidal pad groove is located between the crank arm fixing member and the limit seat.

Further, the cross-beam clamping part includes a jib fixing member, a rectangular pad groove, a support body and a second seat plate, the jib fixing member and the support body are all fixed on the second seat plate, and the second seat plate is fixed on the base frame. , the rectangular pad slot is located in front of the arm fixing member, and the rectangular pad slot is placed on the support body.

Further, the wheel-to-plate clamping component includes a crank arm fixing member, a single-board multi-directional limit seat, and a seat plate three, and the single-board multi-directional limit seat is in close contact with the crank arm in front of the crank arm fixing member. The fixing piece is fixed on the third seat plate together with the crank arm fixing piece.

Further, the main beam clamping part includes a crank arm fixing member, a double-plate multi-directional limit seat and a seat plate four, and the double-plate multi-directional limit seat is in close contact with the crank arm fixing member in front of the crank arm fixing member. The pressing piece is fixed on the seat plate 4 together with the crank arm fixing pressing piece.

Further, the crank arm fixing member includes a clamping groove seat, a right-angle crank arm, a spinning bolt and a plug; the clamping groove seat is composed of symmetrical left and right clamp plates arranged in parallel and vertically. There is a gap forming a clamping groove between the splint and the right splint, the middle part of the left splint and the middle part of the right splint are provided with corresponding bolt holes 1, and the upper part of the left splint and the upper part of the right splint are provided with corresponding bolt holes 2; right angle The first curved arm is fixed vertically in an L-shape by the vertical insert plate and the horizontal straight arm one. The vertical insert plate is provided with three bolt holes and four bolt holes. The vertical insert plate is inserted into the gap between the left splint and the right splint to form a clamping slot. , the bolt hole three and the bolt hole four are respectively connected with the bolt hole one and the bolt hole two and can be inserted into the bolt respectively. A threaded hole at the outer end can continuously protrude downward from the bottom of the threaded hole.

Further, the rotating arm fixing member includes a cylinder, a right-angled crank arm, and a spinning bolt II; the upper end of the cylinder is provided with a rotating shaft segment, the diameter of the rotating shaft segment is smaller than the diameter of the cylinder, and the upper end of the rotating shaft segment is provided with a limit ring that can be detached. , the cylinder is arranged vertically; the second right-angle crank arm is vertically fixed in an L shape by the vertical sleeve and the second horizontal arm, and the vertical sleeve is sleeved on the rotating shaft section at the upper end of the cylinder and can rotate around the axis of the rotating shaft section, The outer end of the second transverse arm is provided with a threaded hole, and the second spinning bolt is screwed down into the threaded hole at the outer end of the second transverse arm and can continuously extend downward from the bottom of the threaded hole.

Further, the single-plate multi-directional limit seat includes a support single plate, a right-angle back pressure arm, a bolt seat and a positioning bolt; the bolt seat is in the shape of a cuboid and has a bolt through hole; There are bolt seats with bolt through holes facing up and down on both the front and rear sides, and bolt seats with bolt through holes facing horizontally and leftward on both the left and right sides of the support veneer; the right-angle back pressure arm It is L-shaped, and its lower end is fixed to the upper part of the front of the support veneer, and its upper end is provided with a bolt seat with a bolt through hole facing horizontally and backwardly; one end of the positioning bolt has a jacking shank, and the positioning bolt is sleeved on the bolt It can be screwed in or out in the through hole of the bolt.

Further, the double-plate multi-directional limiting seat includes a first support plate, a second support plate, a first back pressure plate, a second back pressure plate, a connecting plate, a bolt seat and a positioning bolt; the bolt seat is in the shape of a cuboid and has bolts. a through hole; one end of the positioning bolt is provided with a jacking screw handle; the first support plate and the second support plate are arranged opposite, parallel and vertically, and the connecting plate is connected to the support plate between the first support plate and the second support plate The inner surfaces of the first seat plate and the second seat plate are fixedly connected, the two sides of the top end of the first seat plate and the two sides of the top end of the second seat plate are provided with bolt seats with bolt through holes facing up and down, and the positioning bolts are upwards. Screw down into the bolt through hole; one side of the back pressure plate 1 and one side of the back pressure plate 2 are respectively fixed with the outer surface of the support plate 1 and the outer surface of the support plate 2, and the outer side of the top of the back pressure plate 1 and the back pressure plate are respectively fixed. The top outer side of the second pressing plate is respectively provided with a convex plate 1 and a convex plate 2. The tops of the convex plate 1 and the convex plate 2 are both provided with bolt through holes which are horizontal and outward-facing bolt seats, and the positioning bolts are screwed into the bolts from the inside to the outside. through hole.

Further, it also includes beam end fixings symmetrically arranged on both sides of the base frame for fixing both ends of the beam; the beam end fixings include a seat frame, a triangular support plate, and an inclined surface fixing plate; the seat frame is fixed on the bottom. On the side longitudinal beam of the frame, the triangular support plate is a right-angled triangle, one right-angled side is fixed on the seat frame, and its hypotenuse faces the beam that needs to be fixed, the bevel fixing plate is fixed on the hypotenuse of the triangular support plate, the triangle Bolt holes corresponding to the threaded holes at the ends of the beams are arranged on the support plate.

Further, the underframe is a beam frame structure composed of an underframe longitudinal beam and an underframe transverse beam fixedly connected, and the bottom longitudinal beam includes a middle longitudinal beam and two side longitudinal beams located on the left and right sides of the middle longitudinal beam. The bottom frame beam includes two bottom beams fixed at the front and rear ends of the bottom longitudinal beam and three groups of bottom beams located between the front and rear bottom beams. between the beam and the side longitudinal beams on both sides; the main beam clamping part is fixed on the middle longitudinal beam; the safety beam clamping part is fixed on the bottom end beam; the cross beam clamping part is fixed on the bottom beam and on the side longitudinal beam at the fixed connection with the cross beam; the wheel-to-plate clamping part is installed on the side longitudinal beam; the middle of the bottom end beam at the front end of the chassis and the middle of the bottom end beam at the rear end of the chassis are respectively provided with butt displacement Machine's swivel base.

A clamping method for forming and welding a frame of a rail grinding vehicle is to design a bottom frame, and a plurality of clamping parts capable of fixing the main body components of the grinding vehicle frame are arranged on the bottom frame, so as to ensure the welding between the main components. Accuracy and weld strength, and utilizes clamping parts to resist cooling deformation after welding.

The clamping parts include a plurality of clamping parts for fixing the main beam, a plurality of clamping parts for fixing the safety beam, a plurality of clamping parts for fixing the cross beam and a plurality of clamping parts for fixing the wheel-to-plate. The clamping part is used to fix the fixed object by means of up and down pressing and limiting on both sides.

The advantages of the present invention are:

1. Fix the bulky and heavy components in place at one time with the help of each clamping component, and use the positioner to lift the entire fixture and the fixed object and turn it over in the air as needed to facilitate welding, so that the operator's labor intensity is significantly reduced. Welding efficiency is significantly improved.

2. Each welding part is fixed in place at one time without manual docking, which can ensure that the requirements for angle, dimensional accuracy and welding strength during welding are met; at the same time, the limit and fixation of the welding object limits the cooling of the welding parts to the greatest extent. deformed.

Description of drawings

Fig. 1 is a perspective view of the main body member of the rail grinding vehicle frame to be fixed by the product of the present invention during welding;

Fig. 2 is the product of the present invention - a perspective view of a clamping device used for forming and welding the frame of a rail grinding vehicle. The figure mainly shows the front safety beam clamping component group, the rear safety beam clamping component group, and the front cross beam clamping component group. , The middle beam clamping part group and the rear beam clamping part group, the double arrow in the figure points to the A direction is the rear, the B direction is the front, the C direction is the left, and the D direction is the right;

FIG. 3 is a perspective view of a clamping device for forming and welding the frame of a rail grinding vehicle according to the present invention, mainly showing the main beam clamping components and the like;

FIG. 4 is a partial view of the main body member of the grinding vehicle frame being fixed on the clamping device of the present invention;

Figure 5 is a perspective view of a safety beam clamping part;

Figure 6 is a perspective view of a beam clamping part;

Figure 7 is a perspective view of a beam auxiliary support seat;

Figure 8 is a perspective view of a beam end fastener;

9 is a perspective view of a wheel-to-plate clamping component;

Figure 10 is a diagram showing the positional relationship between the wheel-set plate clamping member and the jacking support;

Figure 11 is a perspective view of the main beam clamping part;

Figure 12 is a perspective view of the crank arm fixing member;

Figure 13 is a perspective view of the arm fixing member;

Figure 14 is a perspective view of a single-board multi-directional limit seat;

Figure 15 is a perspective view of a double-plate multi-directional limit seat;

Figure 16 is a perspective view of the upper positioning frame;

Figure 17 is a perspective view of the lower positioning seat;

Fig. 18 is a perspective view of a clamping device for forming and welding a frame of a rail grinding vehicle according to the present invention, and the figure mainly shows the structure of the underframe.

In the figure: 1. Bottom frame; 2. Crank arm fixing part; 3. Swivel arm fixing part; 4. Safety beam clamping part; 5. Beam clamping part; 6. Beam end fixing part; 7. Wheel Plate clamping part; 8. Main beam clamping part; 9. Double-plate multi-directional limit seat; 10. Single-board multi-directional limit seat; 11. Positioning bolt; 12. Bolt seat; 13. Bolt through hole; 14. Upper positioning frame; 15. Upright column; 16. Positioning beam; 17. Long positioning bolt; 18. Lower positioning seat; 19. Support plate; Bolt one; 23, plug; 24, left plywood; 25, right plywood; 26, bolt hole one; 27, bolt hole two; 28, vertical plug plate; 29, horizontal arm one; 30, cylinder; 31, Right-angle crank arm II; 32. Spinning bolt II; 33. Shaft section; 34. Limit ring; 35. Vertical sleeve; 36. Horizontal straight arm II; 37. Middle longitudinal beam; 38. Side longitudinal beam; 39. Bottom beam; 40, Bottom beam; 41, Rotary seat; 42, Trapezoidal pad slot; 43, One-way limit seat; 44, Seat plate 1; 45, Rectangular pad slot; ;48, auxiliary support seat; 49, seat frame; 50, triangular support plate; 51, inclined surface fixing plate; 52, bolt hole; 53, seat plate four; 54, support plate one; 55, support plate two; 56 , back pressure plate one; 57, back pressure plate two; 58, connecting plate; 59, convex plate one; 60, convex plate two; 61, seat plate three; 62, top support support; 63, support veneer; 64, Right-angle back pressure arm; 65, suspension support seat; 70, main beam; 71, pipeline plate; 72, cross beam; 73, safety beam; 74, safety beam sub-beam; 75, connecting column; 76, wheel-to-plate; 77, Suspension seat; 101. Front safety beam clamping component group; 102. Rear safety beam clamping component group; 201. Front cross beam clamping component group; 202. Middle beam clamping component group;

Detailed ways

In order to facilitate the understanding of the present invention, the relevant components of the grinding vehicle frame that need to be clamped and fixed are described as follows:

As shown in FIG. 1 , the longitudinally arranged main beam 70 needs to be welded to the pipeline plates 71 at both ends of the main beam, and the three transverse beams 72 arranged laterally under the main beam 70 are respectively arranged on the safety beams 73 at the front and rear ends of the frame, located in the The safety beam sub-beam 74 below the safety beam 73, the connecting column 75 between the safety beam 73 and the safety beam sub-beam 74, and the wheel-to-plate 76 on the left and right sides of the front part of the frame and the left and right sides of the rear part, The suspension seat 77 is arranged in the middle of the safety beam.

The present invention is further described below in conjunction with the accompanying drawings. In the accompanying drawings, the direction A pointed to by the double arrows is the rear, the direction B pointed to is the front, the direction C pointed to is the left, and the direction D pointed to is the right.

As shown in Figures 1-4, a clamping device for forming and welding a frame of a rail grinding vehicle includes a bottom frame 1, a plurality of safety beam clamping parts 4 for fixing a safety beam 73, and a cross beam 72 for fixing the beam. A plurality of beam clamping members 5, a plurality of main beam clamping members 8 for fixing the main beam 70, and a plurality of wheel-to-plate clamping members 7 for fixing the wheel-to-plate 76; A plurality of safety beam clamping members 4 is divided into two groups of equal numbers, one group is the front safety beam clamping component group 101 located at the front end of the chassis 1, used to fix the front safety beam 73 of the grinding car, and the other group is located at the rear end of the chassis 1. The rear safety beam clamping part group 102 is used to fix the rear safety beam 73 of the grinding car, and each group of safety beam clamping parts 4 is arranged laterally on the left and right; the plurality of beam clamping parts 5 are divided into three groups of equal numbers, all of which are arranged in the On the chassis 1 between the front safety beam clamping component group 101 and the rear safety beam clamping component group 102, the three sets of beam clamping components 5 are, from front to back, the front beam clamping component group 201 and the middle beam clamping component group 201 in sequence. A component group 202 and a rear beam clamping component group 203, each group of beam clamping components 5 are arranged laterally left and right; a plurality of main beam clamping components 8 are longitudinally arranged in the middle of the chassis 1 in the front and rear; the wheel-to-board clamping components 7 There are four, which are respectively arranged on the left and right sides between the front safety beam clamping part group 101 and the front cross beam clamping part group 201 and between the rear safety beam clamping part group 102 and the rear cross beam clamping part group 203 the left and right sides. Through the above-mentioned clamping parts, the large and heavy parts that need to be welded and play the role of the overall structure can be fixed in place according to the angle requirements and size requirements at one time, so that the labor intensity during welding is significantly reduced, and the welding efficiency, welding accuracy and welding strength are welded. Structural strength is significantly improved, while cooling deformation of welded parts is minimized.

Further improvements are described below.

As shown in FIG. 5 , the safety beam clamping part 4 includes a crank arm fixing member 2 , a trapezoidal cushion groove 42 , a one-way stop seat 43 and a seat plate 44 , the crank arm fixing member 2 , and the trapezoidal cushion groove 42 , The one-way limit seat 43 is fixed on the seat plate one 44, the seat plate one 44 is fixed on the chassis 1, the one-way limit seat 43 is located in front of the crank arm fixing member 2, and the trapezoidal pad groove 42 is located in the crank arm fixing pressure. between the piece 2 and the one-way limit seat 43 .

As shown in Figures 1, 2, 4, and 5, the trapezoidal pad groove 42 is used to place the tubular safety beam sub-beam 74, and the safety beam 73 is obtained through the connecting column 75 between the safety beam 73 and the safety beam sub-beam 74. Support, and then use the crank arm fixture 2 to press down the safety beam 73 . The safety beam 73 is fixed vertically.

At the front end of the base frame 1, the one-way limit seat 43 presses forward against the front safety beam 73 of the frame of the grinding vehicle, and at the rear end of the base frame 1, the one-way stop seat 43 presses backward against the front safety beam 73 of the frame of the grinding vehicle. The function of the rear safety beam 73 is not only for positioning during welding, but also for preventing the entire frame body from shrinking when the frame is welded and cooled.

Preferably, one safety beam is provided with four safety beam clamping parts 4 .

As shown in FIG. 6 , the cross beam clamping part 5 includes the arm fixing member 3 , the rectangular pad groove 45 , the support body 47 and the second seat plate 46 , and the arm fixing member 3 and the support body 47 are both fixed on the second seat plate 46 , the second seat plate 46 is fixed on the base frame 1 , the rectangular pad groove 45 is located in front of the arm fixing member 3 , and the rectangular pad groove 45 is placed on the support body 47 .

The support body 47 can be height-adjusted and has a height-adjusting bolt above it. In application, the bottom of the beam 72 is placed in the rectangular pad groove 45. The function of the rectangular pad groove 45 is to protect the bottom of the beam and prevent the bottom of the beam 72 from being pressed on the adjusting bolt when the arm fixing member 3 presses the beam. deformed.

The arm fixing member 3 presses the beam 72 on the top of the beam 72 , and the beam 72 is vertically fixed between the arm fixing member 3 and the rectangular gasket groove 45 .

As shown in FIGS. 4 and 7 , in order to stably fix the cross beam 72 vertically, an auxiliary support base 48 capable of adjusting the height is also provided on the base frame 1 under the cross beam 72 to be fixed. Auxiliary support is provided for the cross beam 72 below.

As shown in Figures 2, 4, and 8, in order to achieve the horizontal fixing of the beam 72, in addition to the beam clamping member 5, the clamping device also includes two symmetrically arranged on both sides of the base frame 1 for fixing both ends of the beam. The beam end fixing member 6; the beam end fixing member includes a seat frame 49, a triangular support plate 50, and an inclined surface fixing plate 51; the seat frame 49 is fixed on the side longitudinal beam 38 of the base frame 1, and the triangular support The plate 50 is a right-angled triangle, one right-angled side is fixed on the seat frame 49, and its hypotenuse faces the beam 72 that needs to be fixed. Bolt holes 52 corresponding to the threaded holes at the end of the beam. In this way, the ends of the beams 72 can be fixed by the beam end fasteners 6 with bolts.

Preferably, there are two beam clamping members 5 for fixing the beam 72 , and two auxiliary support seats 48 , and the two auxiliary support seats 48 are located between the two beam clamping members 5 .

As shown in FIG. 9 , the wheel-to-plate clamping member 7 includes a crank arm fixing member 2 , a single-plate multi-directional limit seat 10 , and a seat plate 3 61 . The front of the fixing member 2 is in close contact with the crank arm fixing member 2 and is fixed on the third seat plate 61 together with the crank arm fixing member 2 . The third seat plate 61 is fixed on the base frame 1, the single-plate multi-directional limit seat 10 is used to limit the horizontal direction and the downward lower limit of the wheel-to-board 76, and the crank arm fixing member 2 is used for the wheel-to-board. The top of 76 presses down on wheelset plate 76.

As shown in FIGS. 4 and 10 , in order to more stably fix the wheel-to-board 76 , a jacking support 62 with adjustable height is also provided in front of and behind the wheel-to-board clamping member 7 , and the jacking support 62 is provided with There are height adjustment bolts. In this way, the wheel-set plate 76 is supported by the jacking brackets 62 at the front and rear of the wheel-set-plate clamping member 7 .

As shown in FIGS. 3 , 4 and 11 , the main beam clamping part 8 includes a crank arm fixing member 2 , a double-plate multi-directional limit seat 9 and a seat plate 4 53 . The double-plate multi-directional limit seat 9 The crank arm fixing and pressing member 2 is in close contact with the front of the crank arm fixing pressing member 2 and is fixed on the seat plate 4 53 together with the crank arm fixing pressing member 2 . The double-plate multi-directional limit seat 9 is used to limit the main beam 70 in a horizontal direction and a downward lower limit, and the crank arm fixing member 2 is used to press down the main beam 70 above the wheelset plate 76 .

Preferably, there are four main beam clamping members 8 in total.

As shown in FIG. 12 , the crank arm fixing member 2 includes a clamping slot seat 20, a right-angle crank arm 1 21, a spinning bolt 1 22 and a plug 23; the clamping slot seat 20 is composed of parallel and vertical symmetrical The left splint 24 and the right splint 25 are composed of the left splint 24 and the right splint 25. There is a gap forming a clamping groove between the left splint 24 and the right splint 25. The middle part of the left splint 24 and the middle part of the right splint 25 are provided with corresponding bolt holes 26, and the left splint 24 The upper part of the upper part and the upper part of the right splint 25 are provided with corresponding bolt holes two 27; the right angle curved arm one 21 is vertically fixed in an L shape by the vertical insert plate 28 and the horizontal straight arm one 29, and the vertical insert plate 28 is provided with a bolt hole. The third (not shown in the figure) and the fourth plug hole (not shown in the figure), the vertical plug plate 28 is inserted into the gap between the left clamp plate 24 and the right clamp plate 25 to form a clamping groove, and the third plug hole and the plug hole The fourth is correspondingly communicated with the first bolt hole 26 and the second bolt hole 27 and can be inserted into the bolt 23 respectively. The outer end of the horizontal arm 1 29 has a threaded hole (not shown in the figure), and the spinning bolt 1 22 is screwed downward. It is inserted into the threaded hole at the outer end of the horizontal straight arm-29 and can be continuously protruded downward from the bottom of the threaded hole. The advantages of this arrangement are: first, the height of the upper surface of the pressed part is allowed to change to a certain extent; second, the right-angle crank arm 1 21 can be removed by removing the plug 23, so that it can be easily pressed during demolding. The part moves out upwards.

As shown in FIG. 13 , the arm fixing member 3 includes a cylinder 30 , a right-angled crank arm 31 and a spinning bolt 2 32 ; the upper end of the cylinder 30 is provided with a rotating shaft section 33 , and the diameter of the rotating shaft section 33 is smaller than the diameter of the cylinder 30 , The upper end of the rotating shaft segment 33 is provided with a limit ring 34 that can be detached, and the cylinder 30 is arranged vertically; It is sleeved on the rotating shaft section 33 at the upper end of the cylinder 30 and can rotate around the axis of the rotating shaft section 33. The outer end of the second horizontal arm 36 has a threaded hole (not shown in the figure), and the second spinning bolt 32 is screwed down into the horizontal straight arm. Two 36 threaded holes at the outer end and can continue to protrude downward from the bottom of the threaded holes. The advantages of this arrangement are that, firstly, the height of the upper surface of the pressed part can be changed to a certain extent;

As shown in FIG. 14 , the single-plate multi-directional limit seat 10 includes a support single plate 63 , a right-angle back pressure arm 64 , a bolt seat 12 and a positioning bolt 11 ; the bolt seat 12 is in the shape of a cuboid and has bolt through holes 13; The front two sides and the back two sides of the top of the support single plate 63 are provided with bolt through holes 13, which are the bolt seats 12 facing up and down, and the front and rear sides of the left and right sides of the support single plate 63 are provided with bolt through holes. 13 is the bolt seat 12 facing horizontally left and right; the right-angle back pressure arm 64 is L-shaped, and its lower end is fixedly connected with the upper part of the front of the support single plate 63, and its upper end is provided with bolt through holes 13 are horizontal bolts facing forward and backward The seat 12 ; one end of the positioning bolt 11 has a jacking shank, the positioning bolt 11 is sleeved in the bolt through hole 13 , and can be screwed in or out in the bolt through hole 13 . In this way, by screwing the jacking shank of the positioning bolt 11 in the bolt through hole 13 of the bolt seat 12 at the top of the support single plate 63, the lower limit of the components placed on the jacking shank is implemented. The jacking shank of the positioning bolt 11 in the bolt through hole 13 of the bolt seat 12 provided on the back pressure arm 64 performs lateral pressure positioning on the clamped component.

As shown in FIG. 15 , the double-plate multi-directional limit seat 9 includes a first support plate 54 , a second support plate 55 , a back pressure plate 56 , a second back pressure plate 57 , a connecting plate 58 , a bolt seat 12 and a positioning bolt 11 ; The bolt seat 12 is in the shape of a cuboid and has a bolt through hole 13; one end of the positioning bolt 11 has a jacking shank; The connecting plate 58 is fixedly connected with the inner surfaces of the first support plate 54 and the second support plate 55 between the first support plate 54 and the second support plate 55, and the two sides of the top of the support plate one 54 are connected to the second support plate 55. Both sides of the top are provided with bolt through holes 13 which are bolt seats 12 facing up and down, and the positioning bolts 11 are screwed into the bolt through holes 13 from top to bottom; One side is respectively fixed with the outer surface of the first support plate 54 and the outer surface of the second support plate 55, and a convex plate one 59 and a convex plate two 60 are respectively provided on the outer side of the top of the back pressure plate 1 56 and the top outer side of the back pressure plate 2 57. The top ends of the first convex plate 59 and the second convex plate 60 are provided with bolt through holes 13 which are horizontal and inside-outward facing bolt bases 12, and the positioning bolts 11 are screwed into the bolt through holes 13 from the inside to the outside. Through the double-plate arrangement of the first support plate 54 and the second support plate 55, the positioning bolts 11 provided at the top can be dispersed as required to adapt to the components with a larger supporting area at the bottom; the double-plate multi-directional limit seat 9 By screwing the jacking screw shank of the positioning bolt 11 in the bolt through hole 13 of the bolt seat 12 at the top of the support plate 1 54 and the second bearing plate 55, the lower limit position of the components placed on the jacking screw shank is implemented, By screwing the jacking shank of the positioning bolt 11 in the bolt through hole 13 of the bolt seat 12 provided on the back pressure plate 1 56 and the back pressure plate 2 57, the clamped components are subjected to pressure positioning on both sides.

As shown in FIGS. 16 and 17 , between the wheel-to-board clamping members 7 on the left and right sides of the front of the chassis 1 and between the wheel-to-board clamping members 7 on the left and right sides of the rear of the chassis 1 Both are provided with a pipeline plate positioning assembly. The pipeline plate positioning assembly includes an upper positioning frame 14 and a lower positioning seat 18; The positioning beam 16 between, and the long positioning bolt 17 which is horizontally installed on the positioning beam 16 and can be screwed forward and backward on the positioning beam 16; The upright support plate 19, the two faces of the support plate 19 face the left side and the right side of the base frame 1 respectively, the rear side of the top end of the support plate 19 is provided with a bolt seat 12 with a horizontal bolt through hole 13, and the bolt through hole 13 There are long set screws 17 screwed in. Since the pipe holes of the oil pipe, gas pipe and circuit pipe on the pipeline plate 71 have strict position requirements, it is necessary to perform lateral positioning and vertical positioning on the pipeline plate 71 during welding. By tightening the long positioning bolts 17 on the upper positioning frame 14 and the lower positioning seat 18, the pipeline plate 71 is pressed and fixed.

As shown in Figures 2, 3, and 18, the underframe 1 is a beam structure composed of an underframe longitudinal beam and an underframe transverse beam fixedly connected, and the underframe longitudinal beam includes a middle longitudinal beam 37 and a The two side longitudinal beams 38 on the left and right sides of the beam 37, the underframe beams include two bottom end beams 39 fixed at the front and rear ends of the bottom longitudinal beam and three groups of bottom beams 40 between the front and rear bottom end beams 39, Each group of bottom beams 40 is divided into left and right sections, respectively welded between the middle longitudinal beam and the side longitudinal beams 38 on both sides; the main beam clamping part 8 is fixed on the middle longitudinal beam 37; the safety beam clamps The part 4 is fixed on the bottom end beam 39; the cross beam clamping part 5 is fixed on the bottom cross beam 40 and the side longitudinal beam 38 fixed to the transverse beam 72; the wheel-to-board clamping part 7 is installed on the side longitudinal beam 38; the middle of the bottom end beam 39 at the front end of the chassis 1 and the middle of the bottom end beam 39 at the rear end are respectively provided with a rotating seat 41 for docking the positioner. The above-mentioned longitudinal beam frame structure can not only meet the structural strength requirements, but also reduce the weight compared with the plate structure. More importantly, the clamping parts that fix the main body parts of the grinding vehicle frame can have corresponding longitudinal beams or beams for installation and fixation. Longitudinal beams or beams are more resistant to deformation than plates, and the installation and clamping components are stable. The rotating bases 41 provided at both ends of the base frame 1 can be installed on the positioner, and the entire fixture and the fixed object can be lifted up by the positioner and turned over in the air as needed to facilitate welding.

Both ends of the base frame 1 are also provided with suspension supports for fixing the suspension bases 77 of the grinding car.

A clamping method for forming and welding the frame of the rail grinding vehicle is to design a base frame 1, and a plurality of clamping parts capable of fixing the main body components of the grinding vehicle frame are arranged on the base frame 1, so as to ensure the gap between the main body components. The welding accuracy and welding strength are excellent, and the clamping parts are used to resist the cooling deformation after welding.

The above-mentioned clamping method for forming and welding the frame of the rail polishing vehicle, the clamping components include a plurality of clamping components for fixing the main beam 70, a plurality of clamping components for fixing the safety beam 73, and a plurality of clamping components for fixing the cross beam 72. When the clamping member and the plurality of clamping members for fixing the wheel-to-plate 76 are fixed, the clamping member is used to fix the object to be fixed by means of up and down pressing and limiting on both sides. The upper and lower pressing is basically fixed, and the limit on both sides is further fixed, mainly for cooling deformation during welding.

Obviously, the above-mentioned embodiments are only used to describe the present invention more clearly, and should not be regarded as limiting the protection scope covered by the present invention, and any modification in equivalent form should be regarded as falling into the protection scope covered by the present invention.

Claims (10)

1. The utility model provides a be used for rail grinding wagon frame shaping welded clamping device which characterized in that: the wheel pair plate clamping device comprises an underframe (1), a plurality of safety beam clamping components (4), a plurality of cross beam clamping components (5), a plurality of main beam clamping components (8) and a plurality of wheel pair plate clamping components (7); the safety beam clamping components (4) are divided into two groups, one group is a front safety beam clamping component group (101) arranged at the front end of the underframe (1), the other group is a rear safety beam clamping component group (102) arranged at the rear end of the underframe (1), and each group of safety beam clamping components (4) are transversely arranged from left to right; the beam clamping components (5) are divided into three groups and are arranged on the underframe (1) between the front safety beam clamping component group (101) and the rear safety beam clamping component group (102), the three groups of beam clamping components (5) are a front beam clamping component group (201), a middle beam clamping component group (202) and a rear beam clamping component group (203) from front to back in sequence, and each group of beam clamping components (5) is transversely arranged from left to right; the plurality of main beam clamping components (8) are longitudinally arranged in the middle of the underframe (1) from front to back; the wheel set plate clamping components (7) are arranged on the left side and the right side between the front safety beam clamping component group (101) and the front cross beam clamping component group (201) and the left side and the right side between the rear safety beam clamping component group (102) and the rear cross beam clamping component group (203).

2. The clamping device for the form welding of the frame of the rail grinding wagon according to claim 1, wherein: safety beam clamping part (4) are including cranking arm solid casting die (2), trapezoidal pad groove (42), one-way spacing seat (43) and bedplate one (44), crank arm solid casting die (2), trapezoidal pad groove (42), one-way spacing seat (43) are all fixed on bedplate one (44), and one-way spacing seat (43) are located crank arm solid casting die (2) the place ahead, and trapezoidal pad groove (42) are located and crank arm solid casting die (2) and one-way spacing seat (43) between.

3. The clamping device for the form welding of the frame of the rail grinding wagon according to claim 1, wherein: crossbeam clamping part (5) are including spiral arm solid casting die (3), rectangle pad groove (45), supporter (47) and bedplate two (46), and spiral arm solid casting die (3), supporter (47) are all fixed on bedplate two (46), and bedplate two (46) are fixed on chassis (1), and spiral arm solid casting die (3) the place ahead that rectangle pad groove (45) are located, and rectangle pad groove (45) are placed on supporter (47).

4. The clamping device for the form welding of the frame of the rail grinding wagon according to claim 1, wherein: the wheel pair plate clamping component (7) comprises a crank arm pressing piece (2), a single plate multidirectional limiting seat (10) and a seat plate III (61), wherein the single plate multidirectional limiting seat (10) is tightly attached to the crank arm pressing piece (2) in front of the crank arm pressing piece (2) and is fixed on the seat plate III (61) together with the crank arm pressing piece (2).

5. The clamping device for the form welding of the frame of the rail grinding wagon according to claim 1, wherein: the main beam clamping part (8) comprises a crank arm pressing part (2), a double-plate multidirectional limiting seat (9) and a seat plate four (53), wherein the double-plate multidirectional limiting seat (9) is tightly attached to the crank arm pressing part (2) in front of the crank arm pressing part (2) and is fixed on the seat plate four (53) together with the crank arm pressing part (2).

6. The clamping device for the forming welding of the vehicle frame of the rail grinding vehicle according to the claim 2, 4 or 5 is characterized in that the crank arm pressing piece (2) comprises a clamping groove seat (20), a first right-angle crank arm (21), a first spinning bolt (22) and a plug bolt (23), the clamping groove seat (20) is composed of a left clamping plate (24) and a right clamping plate (25) which are arranged in parallel and vertically and are symmetrical, a gap for forming a clamping groove is formed between the left clamping plate (24) and the right clamping plate (25), the middle part of the left clamping plate (24) and the middle part of the right clamping plate (25) are provided with a corresponding first plug bolt hole (26), the upper part of the left clamping plate (24) and the upper part of the right clamping plate (25) are provided with a corresponding second plug bolt hole (27), the first right-angle crank arm (21) is vertically fixed by a vertical plug plate (28) and a first transverse straight arm (29) in an L shape, the vertical plug bolt hole (28) and the plug bolt hole (24) are provided with a fourth plug bolt hole, the vertical plug plate (28) is inserted into the left clamping plate (24) and the right clamping plate (25), the plug bolt hole (29) and the plug bolt hole (29) are respectively and the plug bolt hole (29) can be continuously inserted into the corresponding lower plug bolt hole, the lower plug bolt hole (29), and the outer end of the lower plug bolt hole can be continuously inserted into the corresponding plug bolt hole, and the plug bolt hole.

7. The clamping device for the form welding of the frame of the rail grinding wagon according to claim 5, wherein: the double-plate multidirectional limiting seat (9) comprises a first support plate (54), a second support plate (55), a first return pressure plate (56), a second return pressure plate (57), a connecting plate (58), a bolt seat (12) and a positioning bolt (11); the bolt seat (12) is cuboid and is provided with a bolt through hole (13); one end of the positioning bolt (11) is provided with a jacking screw handle; the first support plate (54) and the second support plate (55) are oppositely, parallelly and vertically arranged, the connecting plate (58) is fixedly connected with the inner faces of the first support plate (54) and the second support plate (55) between the first support plate (54) and the second support plate (55), bolt through holes (13) are formed in the two sides of the top end of the first support plate (54) and the two sides of the top end of the second support plate (55) and are vertically oriented bolt seats (12), and the positioning bolts (11) are screwed into the bolt through holes (13) from top to bottom; one side of the first back pressure plate (56) and one side of the second back pressure plate (57) are fixedly connected with the outer face of the first support plate (54) and the outer face of the second support plate (55) respectively, a first convex plate (59) and a second convex plate (60) are arranged on the outer side of the top end of the first back pressure plate (56) and the outer side of the top end of the second back pressure plate (57) respectively, bolt base (12) with bolt through holes (13) facing horizontally inwards and outwards are arranged at the top ends of the first convex plate (59) and the second convex plate (60), and the positioning bolts (11) are screwed into the bolt through holes (13) from inside to outside.

8. The clamping device for the form welding of the frame of the rail grinding wagon according to any one of claims 1 to 7, wherein: the underframe (1) is of a beam frame structure formed by fixedly connecting underframe longitudinal beams and underframe cross beams, each underframe longitudinal beam comprises a middle longitudinal beam (37) and two side longitudinal beams (38) positioned on the left side and the right side of the middle longitudinal beam (37), each underframe cross beam comprises two bottom end beams (39) fixedly connected to the front end and the rear end of the bottom longitudinal beam and three groups of bottom cross beams (40) positioned between the front bottom end beam and the rear bottom end beam (39), each group of bottom cross beams (40) is divided into a left section and a right section and is respectively welded between the middle longitudinal beam and the side longitudinal beams (38) on the two sides; the main beam clamping component (8) is fixed on the middle longitudinal beam (37); the safety beam clamping part (4) is fixed on the bottom end beam (39); the beam clamping component (5) is fixed on the bottom beam (40) and the side longitudinal beam (38) fixedly connected with the beam (72); the wheel pair plate clamping component (7) is arranged on the side longitudinal beam (38); and rotary seats (41) which are butted with the positioner are respectively arranged in the middle of the bottom end beam (39) at the front end of the underframe (1) and in the middle of the bottom end beam (39) at the rear end of the underframe.

9. A clamping method for forming and welding a frame of a rail grinding wagon is characterized in that a base frame (1) is designed, a plurality of clamping parts capable of fixing main body components of the frame of the rail grinding wagon are arranged on the base frame (1) to ensure the welding precision and the welding strength between the main body components, and the clamping parts are used for resisting cooling deformation after welding.

10. The clamping method for the rail grinding wagon frame contour welding according to the claim 9, characterized in that the clamping components comprise a plurality of clamping components for fixing the main beam (70), a plurality of clamping components for fixing the safety beam (73), a plurality of clamping components for fixing the cross beam (72) and a plurality of clamping components for fixing the wheel pair plate (76), and when fixing, the clamping components are used for fixing a fixed object in a mode of up-down pressing and two-side limiting.

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