Rapid clamping and machining tool for railway vehicle sealing plate

Abstract

The utility model provides a rapid clamping and machining tool for a railway vehicle sealing plate. The rapid clamping and machining tool comprises a mounting plate, a pressing assembly and a wedge-shaped positioning block. A mounting part and a limiting part which are distributed left and right are arranged above the mounting plate; the mounting part comprises a transversely-arranged locking boss and supporting bosses located on the front side and the rear side of the locking boss; the locking boss is higher than the supporting boss; the limiting part is a limiting convex block; limiting faces are arranged at the left end of the limiting protruding block and correspond to the right sides of the two supporting bosses. The number of the wedge-shaped positioning blocks is two. The two wedge-shaped positioning blocks are used for being placed between the supporting boss and the limiting protruding block. The right end face of the wedge-shaped positioning block is attached to the limiting face of the limiting protruding block, and the left end face of the wedge-shaped positioning block is attached to the right end face of the supporting boss. A positioning concave part is arranged at the left upper corner of the wedge-shaped positioning block; the vertical surface of the positioning concave part is a positioning surface; the horizontal plane of the positioning concave part is lower than the upper surface of the supporting boss; the pressing assembly is installed on the locking boss and used for pressing the workpiece on the supporting boss.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, in particular to a tooling fixture for a rail vehicle sealing plate rapid clamping machine. Background Art

[0002] Rail vehicle sealing plate is a plate used to close the bottom opening of the rail vehicle body. Its main function is to protect the bottom of the vehicle from the invasion of the external environment and debris, and it can also play a role in shock absorption, sound insulation and heat preservation. At present, domestic aluminum alloy rail passenger car sealing plate products are mainly made of aluminum alloy materials after water jet cutting, and then formed by CNC machining, and then welded with other workpieces for use, which has certain requirements for product precision.

[0003] The current rail vehicle cover plate is a special-shaped symmetrical product. After water jet processing, the chamfer angle is processed by CNC machine tools and machined. A single pressure plate is clamped on the machine tool workbench, and then the machine tool dial indicator is used to mark and align the product position. The machining zero point is the end side point, which needs to be checked with an ejector. Through single-piece clamping and single-piece processing. Disadvantages of this processing method:

[0004] (1) The product is of special shape. During CNC machining, the zero point is a sharp point, which makes alignment difficult and causes errors, resulting in uneven product quality.

[0005] (2) The product is single-clamped and single-piece processed, which is inefficient.

[0006] (3) The workload of CNC operators is too high. They need to constantly adjust the position of the workpiece to achieve the purpose of alignment, which results in high labor intensity and long working hours. Utility Model Content

[0007] The utility model aims to provide a rail vehicle sealing plate fast clamping machine processing device to solve the problems mentioned in the background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] The locking plate is secured to the upper and lower surfaces of the locking plate and the locking member is secured to the upper and lower surfaces of the locking member.

[0010] Further description of the utility model: the locking boss is provided with at least two mounting holes distributed left and right and penetrating up and down; the bottom of the mounting hole is provided with a countersunk groove; the clamping assembly is arranged in two groups and respectively installed at the positions of the mounting holes; the clamping assembly includes a pressure block, a screw, a nut and a gasket; the head of the screw faces downward and is located in the countersunk groove, and the tail passes through the mounting hole and extends to the top of the locking boss; the pressure block, gasket and nut are installed at the tail of the screw from bottom to top; the front and rear sides of the pressure block are respectively provided with pressure feet corresponding to the top of the supporting boss.

[0011] Further description of the utility model, two screw holes are respectively provided on the front and rear sides of the mounting plate.

[0012] The beneficial effects of the utility model are:

[0013] The present invention can simultaneously clamp the left-right symmetrical sealing plate workpiece on two supporting bosses for processing. During the clamping process, the two wedge-shaped positioning blocks are first placed between the supporting bosses and the limiting bosses, and then the two workpieces are placed on the two supporting bosses respectively. The inner sides of the workpieces abut against the locking bosses, and the right ends abut against the positioning surfaces of the positioning recesses to complete the positioning of the products. The workpieces are then clamped and fixed on the supporting bosses by the clamping components, and the wedge-shaped positioning blocks are then taken out to complete the positioning and clamping of the workpieces. This method can not only quickly position the workpieces, but also will not affect the processing of the grooves at the end of the workpieces. During processing, the zero point is set on one end face of the mounting plate to avoid difficulties and errors in clamping and alignment due to the irregular shapes of the workpieces, greatly shorten the processing time of clamping, and improve the clamping accuracy to improve the processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall structure diagram of the utility model;

[0015] Figure 2 This is a structural diagram of the utility model for clamping a workpiece;

[0016] Figure 3 It is a structural diagram of the mounting plate of the utility model;

[0017] Figure 4 It is the bottom structure diagram of the mounting plate of the utility model;

[0018] Figure 5 It is a structural diagram of the wedge-shaped positioning block of the utility model;

[0019] Figure 6 It is a structural diagram of the clamping assembly of the utility model. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings:

[0021] like Figure 1-6As shown, a rail vehicle sealing plate quick clamping machine processing device comprises a mounting plate 1, a clamping assembly 2 and a wedge-shaped positioning block 3; the mounting plate 1 is provided with a mounting portion 11 and a limiting portion 12 distributed on the left and right; the mounting portion 11 comprises a transversely arranged locking boss 111 and supporting bosses 112 located at the front and rear sides of the locking boss 111; the height of the locking boss 111 is higher than the supporting boss 112; the limiting portion 12 is a limiting convex block; the left end of the limiting convex block corresponds to the right side of the two supporting bosses 112 The wedge-shaped positioning blocks 3 are respectively provided with a limiting surface 121; two wedge-shaped positioning blocks 3 are provided; the two wedge-shaped positioning blocks 3 are respectively used to be placed between the supporting boss 112 and the limiting convex block; the right end face of the wedge-shaped positioning block 3 is in contact with the limiting surface 121 of the limiting convex block, and the left end face is in contact with the right end face of the supporting boss 112; a positioning recess 31 is provided at the upper left corner of the wedge-shaped positioning block 3; the vertical surface 311 of the positioning recess 31 is the positioning surface; the horizontal surface 312 of the positioning recess 31 is lower than the height of the upper surface of the supporting boss 112 The clamping assembly 2 is installed on the locking boss 111 to press the workpiece 4 on the supporting boss 112. When clamping the workpiece 4, the two wedge-shaped positioning blocks 3 are first placed between the supporting boss 112 and the limiting boss, and then the two workpieces 4 are placed on the two supporting bosses 112 respectively. The inner side of the workpiece 4 abuts against the locking boss 111, and the right end abuts against the positioning surface of the positioning recess 31 to complete the positioning of the workpiece 4. At this time, the left and right ends of the workpiece 4 and the side away from the locking boss 111 are extended. The workpiece 4 is pressed and fixed on the supporting boss 112 by the clamping assembly 2 after positioning, and then the wedge-shaped positioning block 3 is taken out to complete the positioning and clamping of the workpiece 4. This method can not only quickly position the workpiece 4, but also will not affect the processing of the end groove of the workpiece 4. During processing, the zero point is set on one end face of the mounting plate 1 to avoid difficulties and errors in clamping and alignment due to the special shape of the workpiece 4, greatly shorten the processing time of clamping, and improve the clamping accuracy to improve the processing accuracy.

[0022] The locking boss 111 is provided with at least two mounting holes 1111 distributed left and right and extending up and down; the bottom of the mounting hole 1111 is provided with a recessed groove 1111-1; the clamping assembly 2 is provided with two groups and is respectively installed at the position of the mounting hole 1111; the clamping assembly 2 includes a clamping block 21, a screw 22, a nut 23 and a gasket 24; the head 221 of the screw 22 faces downward and is located in the recessed groove 1111-1, and the tail passes through the mounting hole 1111 and extends above the locking boss 111; the clamping block 21, the gasket 24 and the nut 23 are installed from bottom to top At the tail of the screw 22; the front and rear sides of the pressure block 21 are respectively provided with pressure feet 211 corresponding to the top of the supporting boss 112; in the present design, three mounting holes 1111 are set, and the middle mounting hole 1111 is reserved. Two sets of clamping components 2 are respectively installed in the mounting holes 1111 on the left and right sides. One pressure block 21 clamps and fixes the workpiece 4 on the front and rear sides. Loosening the nut 23 can control the pressure block 21 to loosen the workpiece 4, and tightening the nut 23 can control the pressure block 21 to clamp the workpiece 4. By setting two sets of clamping components 2, they act on the left and right sides of the workpiece 4 to lock and stabilize.

[0023] The mounting plate 1 is provided with two screw holes 13 at the front and rear sides respectively for being locked on the machine tool.

[0024] The above description does not limit the technical scope of the present invention. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A rail vehicle sealing plate quick clamping machine processing device, characterized in that: The cam is an angular channel that is formed on a pair of camming platforms, and the cam is adapted to move the two cams together to form a circle, the two cams being arranged so that the cams can move relative to each other and to move relative to each other.

2. A rail vehicle cover plate quick clamping machine processing device according to claim 1, characterized in that: The locking boss is provided with at least two mounting holes distributed left and right and penetrating up and down; the bottom of the mounting hole is provided with a recessed groove; the clamping assembly is arranged in two groups and is respectively installed at the positions of the mounting holes; the clamping assembly includes a pressure block, a screw, a nut and a gasket; the head of the screw faces downward and is located in the recessed groove, and the tail passes through the mounting hole and extends above the locking boss; the pressure block, gasket and nut are installed on the tail of the screw from bottom to top; the front and rear sides of the pressure block are respectively provided with pressure feet corresponding to the top of the supporting boss.

3. According to claim 1, a rail vehicle cover plate quick clamping machine processing device is characterized in that: Two screw holes are respectively arranged on the front and rear sides of the mounting plate.

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