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 wagon, wherein the clamping device comprises an underframe, a plurality of safety beam clamping components, a plurality of cross beam clamping components, a plurality of main beam clamping components and a plurality of wheel pair plate clamping components; the safety beam clamping components are divided into a front safety beam clamping component group arranged at the front end of the underframe and a rear safety beam clamping component group arranged at the rear end of the underframe; the plurality of beam clamping components are sequentially divided into a front beam clamping component group, a middle beam clamping component group and a rear beam clamping component group from front to back; the plurality of main beam clamping components are longitudinally arranged in the middle of the underframe from front to back; the wheel pair plate clamping components are respectively arranged on the left side and the right side between the front safety beam clamping component group and the front cross beam clamping component group and the left side and the right side between the rear safety beam clamping component group and the rear cross beam clamping component group. The advantages are that: the labor intensity of operators is obviously reduced, the welding efficiency is obviously improved, and the requirements on the size precision and the welding intensity during welding can be ensured.

Description

Clamping device and clamping method for forming and welding of rail grinding wagon frame

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 wagon, and belongs to the field of rail transit manufacturing tools.

Background

In the field of rail transit, a welding part of a newly laid rail can be communicated with a vehicle only after the welding part is smoothly polished by a polishing vehicle; the rail which is damaged due to long-term operation, particularly the wavy and worn rail formed at the bend section, can continue to operate after being polished and repaired by a polishing vehicle.

In the production process of the grinding wagon, a technological process for welding all the main parts manufactured in advance into an integral frame is provided, in the past, due to the slow development of rail transit, the demand of the grinding wagon is small, tools used for forming and welding the frame are simple, and auxiliary tools such as workshop lifting appliances and simple manufactured supporting and clamping mechanisms are generally used for welding. The welding has the defects that the labor intensity of operators is high, the production efficiency is low, more importantly, the butt joint position, the angle and the like between the parts are not easy to control during operation, the cooling shrinkage after welding is not easy to control, and the like, and the product quality is directly influenced. With the rapid development of rail transit, the application market of the grinding wagon is also expanded, so that the problem to be solved urgently is to develop a clamping device for improving the welding efficiency and the welding precision for the whole frame of the welding grinding wagon.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the simple supporting and hoisting equipment has the advantages of high labor intensity and low production efficiency when the main body part of the grinding wagon is welded into the integral frame, and the problem of poor welding precision caused by difficult control of butt joint positions, angles and the like between the parts during operation.

Aiming at the problems, the technical scheme provided by the invention is as follows:

a clamping device for forming and welding a frame of a rail grinding wagon comprises an underframe, a plurality of safety beam clamping components, a plurality of cross beam clamping components, a plurality of main beam clamping components and a plurality of wheel pair plate clamping components; the safety beam clamping components are divided into two groups, one group is a front safety beam clamping component group arranged at the front end of the underframe, the other group is a rear safety beam clamping component group arranged at the rear end of the underframe, and each group of safety beam clamping components are transversely arranged left and right; the beam clamping components are divided into three groups which are arranged on the underframe between the front safety beam clamping component group and the rear safety beam clamping component group, the three groups of beam clamping components are a front beam clamping component group, a middle beam clamping component group and a rear beam clamping component group in sequence from front to back, and each group of beam clamping components are transversely arranged from left to right; the plurality of main beam clamping components are longitudinally arranged in the middle of the underframe from front to back; the number of the wheel pair plate clamping components is four, and the four wheel pair plate clamping components are respectively arranged on the left side and the right side between the front safety beam clamping component group and the front cross beam clamping component group and the left side and the right side between the rear safety beam clamping component group and the rear cross beam clamping component group.

Furthermore, the safety beam clamping part comprises a crank arm pressing part, a trapezoid pad groove, a one-way limiting seat and a first seat plate, the crank arm pressing part, the trapezoid pad groove and the one-way limiting seat are all fixed on the first seat plate, the one-way limiting seat is located in front of the crank arm pressing part, and the trapezoid pad groove is located between the crank arm pressing part and the limiting seat.

Furthermore, the beam clamping part comprises a spiral arm pressing part, a rectangular pad groove, a supporting body and a second base plate, the spiral arm pressing part and the supporting body are fixed on the second base plate, the second base plate is fixed on the underframe, the rectangular pad groove is located in the front of the spiral arm pressing part, and the rectangular pad groove is placed on the supporting body.

Furthermore, the wheel set plate clamping component comprises a crank arm pressing piece, a single plate multidirectional limiting seat and a seat plate III, wherein the single plate multidirectional limiting seat is tightly attached to the crank arm pressing piece in front of the crank arm pressing piece and is fixed on the seat plate III together with the crank arm pressing piece.

Furthermore, the main beam clamping part comprises a crank arm pressing part, a double-plate multidirectional limiting seat and a seat plate IV, wherein the double-plate multidirectional limiting seat is tightly attached to the crank arm pressing part in front of the crank arm pressing part and is fixed on the seat plate IV together with the crank arm pressing part.

The crank arm fixing and pressing piece comprises a clamping groove seat, a right-angle crank arm I, a spinning bolt I and a plug bolt, wherein the clamping groove seat is composed of a left clamping plate and a right clamping plate which are arranged in parallel and vertically and symmetrically, a gap for forming a clamping groove is formed between the left clamping plate and the right clamping plate, corresponding plug bolt holes I are formed in the middle of the left clamping plate and the middle of the right clamping plate, corresponding plug bolt holes II are formed in the upper portion of the left clamping plate and the upper portion of the right clamping plate, the right-angle crank arm I is vertically fixedly connected with a transverse straight arm I in an L shape through a vertical plug plate, a plug bolt hole III and a plug bolt hole IV are formed in the vertical plug plate, the vertical plug plate is inserted into the gap for forming the clamping groove between the left clamping plate and the right clamping plate, the plug bolt hole III and the plug bolt hole IV are respectively communicated with the plug bolt hole I and the plug bolt hole II and can be respectively inserted into the plug bolt, the transverse straight arm I is provided with a threaded hole, and the spinning bolt is screwed into the threaded.

The rotary arm fixing and pressing piece comprises a cylinder, a right-angle crank arm II and a spinning bolt II, a rotary shaft section is arranged at the upper end of the cylinder, the diameter of the rotary shaft section is smaller than that of the cylinder, a detachable limiting ring is arranged at the upper end of the rotary shaft section, the cylinder is vertically arranged, the right-angle crank arm II is vertically and fixedly connected with a horizontal straight arm II in an L shape through a vertical sleeve, the vertical sleeve is sleeved on the rotary shaft section at the upper end of the cylinder and can rotate around the axis of the rotary shaft section, a threaded hole is formed in the outer end of the horizontal straight arm II, and the spinning bolt II rotates downwards into the threaded hole in the outer end of the horizontal straight arm II and can continuously extend downwards from.

Furthermore, the single plate multidirectional limiting seat comprises a support single plate, a right-angle back-pressure arm, a bolt seat and a positioning bolt, wherein the bolt seat is cuboid and is provided with bolt through holes, the bolt seat with the bolt through holes facing up and down is arranged on the two sides of the front and the back of the top end of the support single plate, the bolt seat with the bolt through holes facing horizontally and left and right is arranged on the front and back surfaces of the left and right sides of the support single plate, the right-angle back-pressure arm is L-shaped, the end part of the lower end of the right-angle back-pressure arm is fixedly connected with the upper part of the front of the support single plate, the bolt seat with the bolt through holes facing horizontally and front and back is arranged at the upper end of the right-angle back-pressure arm, and a.

Furthermore, the double-plate multidirectional limiting seat comprises a support plate I, a support plate II, a back pressure plate I, a back pressure plate II, a connecting plate, a bolt seat and a positioning bolt; the bolt seat is cuboid and is provided with a bolt 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 oppositely, parallelly and vertically arranged, the connecting plate is fixedly connected with the inner surfaces of the first support plate and the second support plate between the first support plate and the second support plate, bolt seats with bolt through holes facing up and down are arranged on two sides of the top end of the first support plate and two sides of the top end of the second support plate, and the positioning bolts are screwed into the bolt through holes from top to bottom; one side of the first back pressure plate and one side of the second back pressure plate are fixedly connected with the outer face of the first support plate and the outer face of the second support plate respectively, a first convex plate and a second convex plate are arranged on the outer side of the top end of the first back pressure plate and the outer side of the top end of the second back pressure plate respectively, bolt seats with bolt through holes facing horizontally inwards and outwards are arranged at the top ends of the first convex plate and the second convex plate respectively, and the positioning bolts are screwed in the bolt through holes from inside to outside.

Further, the device also comprises beam end fixing parts which are symmetrically arranged at two sides of the underframe and used for fixing two ends of the beam; the fixed part at the end part of the cross beam comprises a seat frame, a triangular supporting plate and an inclined plane fixing plate; the frame is fixed on the side longeron of chassis, the triangular support board is right triangle, and its right-angle side is fixed on the frame, and its hypotenuse is towards the crossbeam that needs to be fixed, the inclined plane fixed plate is fixed on the hypotenuse of triangular support board, is provided with the bolt hole corresponding with crossbeam tip screw hole on the triangular support board.

Furthermore, the underframe is a beam frame structure formed by fixedly connecting underframe longitudinal beams and underframe cross beams, each underframe longitudinal beam comprises a middle longitudinal beam and two side longitudinal beams positioned at the left side and the right side of the middle longitudinal beam, each underframe cross beam comprises two bottom end beams fixedly connected at the front end and the rear end of the bottom longitudinal beam and three groups of bottom cross beams positioned between the front bottom end beam and the rear bottom end beam, each group of bottom cross beams is divided into a left section and a right section and is respectively welded between the middle longitudinal beam and the side longitudinal beams at the two sides; the main beam clamping component is fixed on the middle longitudinal beam; the safety beam clamping part is fixed on the bottom end beam; the beam clamping component is fixed on the bottom beam and the side longitudinal beam fixedly connected with the beam; the wheel set plate clamping component is arranged on the side longitudinal beam; and rotary seats which are butted with the positioner are respectively arranged in the middle of the bottom end beam at the front end of the underframe and in the middle of the bottom end beam at the rear end of the underframe.

A clamping method for the shaping welding of the frame of track grinding car features that a base frame is designed, and multiple clamping parts for fixing the main body of grinding car are arranged on said base frame to ensure the welding precision and strength between main body and to resist the cooling deformation after welding.

The clamping components comprise a plurality of clamping components for fixing the main beams, a plurality of clamping components for fixing the safety beams, a plurality of clamping components for fixing the cross beams and a plurality of clamping components for clamping the plates by the fixing wheels, and when the main beams are fixed, the clamping components are used for fixing fixed objects in a mode of vertical pressing and two-side limiting.

The invention has the advantages that:

1. the parts with large volume and heavy weight are fixed in place at one time by means of the clamping parts, and the whole clamp and the fixed object are lifted by the positioner and are randomly turned over in the air according to requirements so as to facilitate welding, so that the labor intensity of operators is obviously reduced, and the welding efficiency is obviously improved.

2. All welding parts are fixed in place at one time, manual butt joint is not needed, and requirements on angles, dimensional accuracy and welding strength during welding can be met; meanwhile, the cooling deformation of the welding part is limited to the maximum extent by limiting and fixing the welding object.

Drawings

FIG. 1 is a perspective view of a frame body member of a rail grinding vehicle to which the product of the present invention is to be secured during welding;

FIG. 2 is a perspective view of the clamping device for forming and welding the frame of a rail grinding wagon according to the present invention, which mainly shows a front safety beam clamping member set, a rear safety beam clamping member set, a front cross beam clamping member set, a middle cross beam clamping member set, and a rear cross beam clamping member set, wherein the direction A indicated by a double-headed arrow is back, the direction B indicated by a double-headed arrow is front, the direction C indicated by a double-headed arrow is left, and the direction D indicated by a double-headed arrow is right;

FIG. 3 is a perspective view of a clamping device for form welding of a rail grinding wagon frame of the present invention, showing primarily main beam clamping components and the like;

FIG. 4 is a partial view of a frame body member of a grinding machine secured to the clamp assembly of the present invention;

FIG. 5 is a perspective view of a safety beam clamping member;

FIG. 6 is a perspective view of a beam clamping member;

FIG. 7 is a perspective view of the auxiliary support base of the cross beam;

FIG. 8 is a perspective view of the beam end mounts;

FIG. 9 is a perspective view of the wheel set plate retaining member;

FIG. 10 is a diagram showing the positional relationship between the wheel set plate clamping member and the jacking seat;

FIG. 11 is a perspective view of a main beam clamping member;

FIG. 12 is a perspective view of the crank arm fixing and pressing member;

FIG. 13 is a perspective view of the radial arm pressure retention member;

FIG. 14 is a perspective view of a multi-directional single plate retainer;

FIG. 15 is a perspective view of a two-plate multi-directional stop;

FIG. 16 is a perspective view of the upper positioning frame;

FIG. 17 is a perspective view of the lower positioning seat;

fig. 18 is a perspective view of a clamping device for form welding of a frame of a rail grinding wagon according to the present invention, mainly illustrating the structure of the underframe.

In the figure: 1. a chassis; 2. a crank arm pressing piece; 3. a swing arm press fixing piece; 4. a safety beam clamping member; 5. a beam clamping member; 6. a beam end fixing part; 7. a wheelset plate clamping member; 8. a main beam clamping component; 9. a double-plate multidirectional limiting seat; 10. a single plate multidirectional limiting seat; 11. positioning the bolt; 12. a bolt seat; 13. a bolt through hole; 14. an upper positioning frame; 15. a column; 16. positioning the beam; 17. a long positioning bolt; 18. a lower positioning seat; 19. a support plate; 20. a slot clamping seat; 21. a right-angle crank arm I; 22. spinning a bolt I; 23. plugging; 24. a left splint; 25. a right splint; 26. a first plug hole; 27. a plug hole II; 28. a vertical plug board; 29. a first transverse straight arm; 30. a cylinder; 31. a right-angle crank arm II; 32. spinning a bolt II; 33. a shaft section; 34. a limiting ring; 35. a vertical sleeve; 36. a second transverse straight arm; 37. a middle longitudinal beam; 38. a side stringer; 39. a bottom end beam; 40. a bottom cross member; 41. a rotating base; 42. a trapezoidal pad groove; 43. a one-way limiting seat; 44. a first seat plate; 45. a rectangular pad slot; 46. a second seat plate; 47. a support body; 48. an auxiliary support seat; 49. a seat frame; 50. a triangular support plate; 51. an inclined plane fixing plate; 52. bolt holes; 53. a seat plate IV; 54. a first support plate; 55. a second support plate; 56. a first back pressure plate; 57. a second pressure return plate; 58. a connecting plate; 59. a first convex plate; 60. a convex plate II; 61. a seat plate III; 62. supporting the support; 63. a support single plate; 64. a right angle back pressure arm; 65. hanging a supporting seat; 70. a main beam; 71. a pipeline plate; 72. a cross beam; 73. a safety beam; 74. a safety beam secondary beam; 75. connecting columns; 76. a wheel-to-plate; 77. a suspension seat; 101. a front safety beam clamping component set; 102. a rear safety beam clamping component set; 201. a front beam clamping component group; 202. a middle cross beam clamping component group; 203. the rear cross member holds the member group.

Detailed Description

To facilitate an understanding of the invention, the relevant parts of the frame of the grinding machine that need to be clamped in place are described below:

as shown in fig. 1, a main beam 70 arranged longitudinally, a pipeline plate 71 welded at two ends of the main beam, three cross beams 72 arranged transversely below the main beam 70, safety beams 73 arranged at the front end and the rear end of the frame respectively, a safety beam sub-beam 74 arranged below the safety beam 73, a connecting column 75 arranged between the safety beam 73 and the safety beam sub-beam 74, wheel pair plates 76 arranged at the left and right sides of the front part and the left and right sides of the rear part of the frame, and a suspension seat 77 arranged in the middle of the safety beam.

The present invention will be further described with reference to the accompanying drawings, wherein the double-headed arrow indicates that the direction A is rearward, the direction B is forward, the direction C is left, and the direction D is right.

As shown in fig. 1-4, a clamping device for form welding of a rail grinding wagon frame comprises an underframe 1, a plurality of safety beam clamping components 4 for fixing safety beams 73, a plurality of cross beam clamping components 5 for fixing cross beams 72, a plurality of main beam clamping components 8 for fixing main beams 70, and a plurality of wheel-to-plate clamping components 7 for fixing wheel-to-plate 76; the plurality of safety beam clamping components 4 are divided into two groups with equal number, one group is a front safety beam clamping component group 101 arranged at the front end of the underframe 1 and used for fixing a front safety beam 73 of the grinding wagon, the other group is a rear safety beam clamping component group 102 arranged at the rear end of the underframe 1 and used for fixing a rear safety beam 73 of the grinding wagon, and each group of safety beam clamping components 4 are transversely arranged from left to right; the plurality of beam clamping components 5 are divided into three groups with equal number and are all 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 are transversely arranged from left to right; a plurality of main beam clamping components 8 are longitudinally arranged in the middle of the underframe 1 from front to back; the number of the wheel-to-plate clamping members 7 is four, and the four wheel-to-plate clamping members are respectively arranged on the left side and the right side between the front safety beam clamping member set 101 and the front beam clamping member set 201, and on the left side and the right side between the rear safety beam clamping member set 102 and the rear beam clamping member set 203. Through the clamping part arranged above, a large part and a heavy part which are required to be welded and have the functions of an integral structure are fixed in place at one time according to angle requirements and size requirements, so that the labor intensity is obviously reduced during welding, the welding efficiency, the welding precision and the welding strength, the structural strength of a welding seam is obviously improved, and the cooling deformation of a welded part is limited to the maximum extent.

Further improvements are described below.

As shown in fig. 5, the safety beam clamping part 4 includes a crank arm pressing part 2, a trapezoidal pad groove 42, a one-way limiting seat 43 and a first seat plate 44, the crank arm pressing part 2, the trapezoidal pad groove 42 and the one-way limiting seat 43 are all fixed on the first seat plate 44, the first seat plate 44 is fixed on the underframe 1, the one-way limiting seat 43 is located in front of the crank arm pressing part 2, and the trapezoidal pad groove 42 is located between the crank arm pressing part 2 and the one-way limiting seat 43.

As shown in fig. 1, 2, 4 and 5, the trapezoidal pad groove 42 is used for placing a safety beam secondary beam 74 in a circular tube shape, the safety beam 73 is supported through a connecting column 75 between the safety beam 73 and the safety beam secondary beam 74, and the safety beam 73 is pressed downwards by the crank arm pressing piece 2. So that the safety beam 73 is fixed vertically.

At the front end of the underframe 1, the one-way limiting seat 43 is forwards abutted against the front safety beam 73 of the frame of the grinding machine, and at the rear end of the underframe 1, the one-way limiting seat 43 is backwards abutted against the rear safety beam 73 of the frame of the grinding machine, so that the function of the one-way limiting seat is that the one-way limiting seat is positioned during welding and mainly used for preventing the whole frame body from shrinking during welding and cooling of the frame.

Preferably, four safety beam holding members 4 are provided for one safety beam.

As shown in fig. 6, the beam clamping member 5 includes a radial arm pressing member 3, a rectangular pad groove 45, a supporting member 47 and a second seat plate 46, the radial arm pressing member 3 and the supporting member 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 radial arm pressing member 3, and the rectangular pad groove 45 is placed on the supporting member 47.

The support body 47 can be height-adjusted with a height-adjusting bolt above it. During application, the lower surface of the cross beam 72 is placed in the rectangular pad groove 45, the rectangular pad groove 45 is used for protecting the lower surface of the cross beam, and the situation that the lower surface of the cross beam 72 is pressed and deformed on the adjusting bolt when the swing arm pressing piece 3 applies pressure to the cross beam is avoided.

The radial arm pressing member 3 presses the cross beam 72 on the cross beam 72, and the cross beam 72 is vertically fixed between the radial arm pressing member 3 and the rectangular pad groove 45.

As shown in fig. 4 and 7, in order to fix the cross beam 72 vertically more stably, an auxiliary support base 48 capable of adjusting the height is further provided on the underframe 1 below the cross beam 72 to be fixed, so as to support the cross beam 72 below the cross beam 72.

As shown in fig. 2, 4 and 8, in order to fix the cross beam 72 in the horizontal direction, the clamping device comprises a cross beam clamping part 5, and cross beam end fixing parts 6 which are symmetrically arranged at two sides of the underframe 1 and used for fixing two ends of the cross beam; the fixed part at the end part of the cross beam comprises a seat frame 49, a triangular support plate 50 and an inclined plane fixing plate 51; the seat frame 49 is fixed on the side longitudinal beam 38 of the underframe 1, the triangular support plate 50 is a right-angled triangle, one right-angled side of the triangular support plate is fixed on the seat frame 49, the inclined side faces to the cross beam 72 to be fixed, the inclined surface fixing plate 51 is fixed on the inclined side of the triangular support plate 50, and the triangular support plate 50 is provided with bolt holes 52 corresponding to threaded holes at the end part of the cross beam. Thus, the end of the cross member 72 can be fixed by the cross member end fixing member 6 using the bolt.

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

As shown in fig. 9, the wheel-plate clamping member 7 includes a crank arm pressing member 2, a single plate multi-directional limiting seat 10, and a third seat plate 61, wherein the single plate multi-directional limiting seat 10 is tightly attached to the crank arm pressing member 2 in front of the crank arm pressing member 2 and is fixed to the third seat plate 61 together with the crank arm pressing member 2. The seat plate three 61 is fixed on the underframe 1, the single plate multi-directional limiting seat 10 is used for limiting the wheel pair plate 76 in the horizontal direction and limiting the wheel pair plate 76 downwards, and the crank arm pressing piece 2 is used for pressing the wheel pair plate 76 downwards above the wheel pair plate 76.

As shown in fig. 4 and 10, in order to fix the wheelset plate 76 more stably, jacking brackets 62 capable of adjusting the height are further provided in front of and behind the wheelset plate clamping member 7, and height adjusting bolts are provided on the jacking brackets 62. In this way, the wheelset plate 76 is secondarily supported by the jacking brackets 62 in front of and behind the wheelset plate holding member 7.

As shown in fig. 3, 4 and 11, the main beam clamping member 8 includes a crank arm pressing member 2, a two-plate multi-directional limiting seat 9 and a seat plate four 53, and the two-plate multi-directional limiting seat 9 is tightly attached to the crank arm pressing member 2 in front of the crank arm pressing member 2 and is fixed to the seat plate four 53 together with the crank arm pressing member 2. The two-plate multi-directional limiting seat 9 is used for limiting the main beam 70 in the horizontal direction and limiting the main beam 70 downwards, and the crank arm pressing piece 2 is used for pressing the main beam 70 downwards above the wheel pair plate 76.

Preferably, a total of four main beam holding members 8 are provided.

As shown in FIG. 12, the crank arm pressing member 2 comprises a slot seat 20, a first right-angle crank arm 21, a first spinning bolt 22 and a plug 23, the slot seat 20 is composed of a left clamping plate 24 and a right clamping plate 25 which are arranged in parallel and vertically and symmetrically, a gap for forming a slot is formed between the left clamping plate 24 and the right clamping plate 25, a first plug hole 26 is formed in the middle of the left clamping plate 24 and the middle of the right clamping plate 25 correspondingly, a second plug hole 27 is formed in the upper portion of the left clamping plate 24 and the upper portion of the right clamping plate 25 correspondingly, the first right-angle crank arm 21 is vertically fixed by a first vertical plug plate 28 and a first transverse straight arm 29 in an L shape, a third plug hole (not shown) and a fourth plug hole (not shown) are formed in the vertical plug plate 28, the third plug hole and the fourth plug hole (not shown) are respectively communicated with the first plug hole 26 and the second plug hole 27 and can be respectively inserted into the plug 23, the outer end of the first transverse straight arm 29 is provided with a threaded hole (not shown), the plug hole 22 can be continuously screwed out from the lower portion of the straight arm, and the outer end of the first straight arm can be conveniently removed from the lower portion of the plug 23, and the lower portion of the plug 23, so that the outer end of the right portion of the right arm can be conveniently and the right arm can be removed from the upper portion of the upper.

As shown in fig. 13, the swing arm pressing member 3 includes a cylinder 30, a right-angle crank arm two 31, and a spinning bolt two 32, the upper end of the cylinder 30 is provided with a rotating shaft section 33, the diameter of the rotating shaft section 33 is smaller than that of the cylinder 30, the upper end of the rotating shaft section 33 is provided with a detachable limiting ring 34, the cylinder 30 is vertically arranged, the right-angle crank arm two 31 is vertically fixed and connected in L shape by a vertical sleeve 35 and a horizontal arm two 36, the vertical sleeve 35 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 horizontal arm two 36 is provided with a threaded hole (not shown in the figure), and the spinning bolt two 32 is screwed downwards into the threaded hole at the outer end of the horizontal arm two 36 and can continuously extend downwards from the lower part of the threaded hole.

As shown in fig. 14, the single plate multidirectional limiting 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 rectangular and has a bolt through hole 13, the bolt through hole 13 is formed in each of the front side and the rear side of the top end of the support single plate 63 and is the bolt seat 12 facing up and down, the bolt through hole 13 is formed in each of the front and rear sides of the left and right sides of the support single plate 63 and is the bolt seat 12 facing horizontally left and right, the right-angle back-pressure arm 64 is L-shaped, the lower end portion of the right-angle back-pressure arm is fixedly connected to the upper portion of the front side of the support single plate 63, the upper end of the right-angle back-pressure arm is provided with the bolt seat 12 facing horizontally front and back, one end of the positioning bolt 11 is provided with a top-supporting bolt shank, the positioning bolt 11 is sleeved in the bolt through hole 13 of the bolt seat 12, and can be screwed in or unscrewed in the bolt through the top-supporting bolt through hole 13 of the bolt seat 12 screwed in the right-angle back-pressure arm 64, and the positioning bolt 11 is clamped.

As shown in fig. 15, the two-plate multi-directional limiting seat 9 includes a first seat plate 54, a second seat 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 rectangular 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 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, 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, the bolt through holes 12 face up and down, and the positioning bolts 11 are screwed into the bolt through holes 13 from top to bottom; one side of the first pressure return plate 56 and one side of the second pressure return 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 pressure return plate 56 and the outer side of the top end of the second pressure return plate 57 respectively, bolt through holes 13 are formed in the top ends of the first convex plate 59 and the second convex plate 60 respectively and are bolt seats 12 facing horizontally inwards and outwards, and the positioning bolts 11 are screwed into the bolt through holes 13 from inside to outside. Through the double-plate arrangement of the support plate I54 and the support plate II 55, the positioning bolt 11 arranged at the top can be dispersed as required to adapt to a part with a larger bottom jacking area; the double-plate multidirectional limiting seat 9 is used for limiting the lower limit of a part placed on the jacking screw handle through the jacking screw handle of the positioning bolt 11 screwed into the bolt through hole 13 of the bolt seat 12 at the top ends of the support plate I54 and the support plate II 55, and is used for applying pressure to two sides of the clamped part to position through the jacking screw handle of the positioning bolt 11 screwed into the bolt through hole 13 of the bolt seat 12 arranged on the back pressure plate I56 and the back pressure plate II 57.

As shown in fig. 16 and 17, a pipeline plate positioning assembly is arranged between the wheel pair plate clamping members 7 on the left and right sides of the front part of the underframe 1 and between the wheel pair plate clamping members 7 on the left and right sides of the rear part of the underframe 1, and the pipeline plate positioning assembly comprises an upper positioning frame 14 and a lower positioning seat 18; the upper positioning frame 14 comprises two upright posts 15 vertically fixed on the underframe 1 from left to right, a positioning beam 16 fixed between the two upright posts 15, and a long positioning bolt 17 horizontally arranged on the positioning beam 16 and screwed forwards and backwards on the positioning beam 16; the lower positioning seat 18 comprises a vertical support plate 19 with the lower end fixed on the bottom frame 1, two surfaces of the support plate 19 respectively face the left side and the right side of the bottom frame 1, a bolt seat 12 with a horizontal bolt through hole 13 is arranged on the rear side of the top end of the support plate 19, and the bolt through hole 13 is provided with a long positioning bolt 17 screwed in. Because the pipe holes of the oil pipe, the air pipe and the circuit pipe on the pipeline plate 71 have strict position requirements, the pipeline plate 71 needs to be transversely positioned and vertically positioned during welding, and the upper positioning frame 14 and the lower positioning seat 18 are arranged, so that the pipeline plate 71 can be tightly pressed and fixed by screwing the long positioning bolts 17 on the upper positioning frame 14 and the lower positioning seat 18.

As shown in fig. 2, 3 and 18, the underframe 1 is 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 at the left and right sides of the middle longitudinal beam 37, each underframe cross beam comprises two bottom end beams 39 fixedly connected at the front and rear ends of the underframe longitudinal beam and three groups of bottom cross beams 40 positioned between the front and rear two bottom end beams 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 at 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-to-plate clamping member 7 is mounted on the side rail 38; and rotary seats 41 for butting a 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. Above-mentioned crossbar frame structure can satisfy structural strength requirement, also can be than plate structure weight reduction, and more importantly's the clamping component of fixed polisher car frame main part can both have corresponding longeron or crossbeam to supply its installation fixed, and longeron or crossbeam are bigger than panel anti-deformation intensity, and each family of installation clamping component is firm. The rotary seats 41 arranged at the two ends of the underframe 1 can be arranged on a positioner, and the whole fixture and a fixed object can be lifted and randomly turned over in the air according to needs through the positioner so as to be convenient for welding.

Hanging supports are further arranged at two ends of the underframe 1 and used for fixing hanging seats 77 of the grinding wagon.

A clamping method for the shaping welding of the frame of a rail grinding wagon is to design a bottom frame 1, and a plurality of clamping parts capable of fixing the main body components of the frame of the rail grinding wagon are arranged on the bottom frame 1 so as to ensure the welding precision and the welding strength between the main body components and resist the cooling deformation after welding by the clamping parts.

In the clamping method for the forming welding of the rail grinding wagon frame, 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 the rail grinding wagon frame is fixed, the clamping components are used for fixing a fixed object in a mode of up-down pressing and two-side limiting. The upper pressing and the lower pressing are basically fixed, the two side limiting are further fixed, and the welding device mainly aims at cooling deformation during welding.

It is clear that the above-described embodiments are only intended to illustrate the invention more clearly and are not to be considered as limiting the scope of protection covered by the invention, any modification of equivalent forms being considered as falling within the scope of protection covered by the 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.

Images